/* roulang page: index */
:root {
            --primary: #1a6bff;
            --primary-dark: #0d4fc5;
            --primary-light: #e8f0ff;
            --primary-soft: #f2f7ff;
            --secondary: #0f9d8f;
            --secondary-light: #e8f7f5;
            --accent: #ff8a3d;
            --accent-light: #fff4ec;
            --bg-white: #ffffff;
            --bg-gray: #f6f8fb;
            --bg-dark: #0b1c3a;
            --bg-dark-light: #14294f;
            --text-primary: #1a1f36;
            --text-secondary: #4a5578;
            --text-muted: #7a86a8;
            --text-light: #9aa5c4;
            --border: #e8ecf4;
            --border-light: #f0f3f9;
            --radius-xs: 6px;
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 16px;
            --radius-xl: 20px;
            --radius-full: 999px;
            --shadow-sm: 0 2px 8px rgba(10, 25, 50, 0.05);
            --shadow-md: 0 4px 16px rgba(10, 25, 50, 0.08);
            --shadow-lg: 0 8px 32px rgba(10, 25, 50, 0.12);
            --shadow-xl: 0 16px 48px rgba(10, 25, 50, 0.16);
            --font-family: 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', Arial, sans-serif;
            --container-max: 1200px;
            --container-wide: 1320px;
            --transition-fast: 0.18s ease;
            --transition-normal: 0.28s ease;
            --transition-slow: 0.4s ease;
            --spacing-xs: 4px;
            --spacing-sm: 8px;
            --spacing-md: 16px;
            --spacing-lg: 24px;
            --spacing-xl: 32px;
            --spacing-2xl: 48px;
            --spacing-3xl: 64px;
            --spacing-4xl: 80px;
        }

        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }

        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        body {
            font-family: var(--font-family);
            font-size: 16px;
            line-height: 1.7;
            color: var(--text-primary);
            background-color: var(--bg-white);
            overflow-x: hidden;
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
        }

        a {
            text-decoration: none;
            color: inherit;
            transition: color var(--transition-fast);
        }

        button {
            font-family: inherit;
            cursor: pointer;
            border: none;
            background: none;
            transition: all var(--transition-fast);
        }

        input,
        textarea,
        select {
            font-family: inherit;
            font-size: inherit;
            outline: none;
            border: 1px solid var(--border);
            border-radius: var(--radius-sm);
            transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
        }

        input:focus,
        textarea:focus,
        select:focus {
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(26, 107, 255, 0.12);
        }

        ul,
        ol {
            list-style: none;
        }

        .container {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 var(--spacing-lg);
        }

        .container-wide {
            max-width: var(--container-wide);
            margin: 0 auto;
            padding: 0 var(--spacing-lg);
        }

        .sr-only {
            position: absolute;
            width: 1px;
            height: 1px;
            padding: 0;
            margin: -1px;
            overflow: hidden;
            clip: rect(0, 0, 0, 0);
            white-space: nowrap;
            border: 0;
        }

        /* ========== Header / Nav ========== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: rgba(255, 255, 255, 0.96);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid var(--border);
            box-shadow: var(--shadow-sm);
            transition: all var(--transition-normal);
        }

        .site-header.scrolled {
            box-shadow: var(--shadow-md);
            border-bottom-color: var(--border);
        }

        .nav-toolbar {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: var(--spacing-md);
            padding: var(--spacing-md) 0;
        }

        .nav-logo {
            display: flex;
            align-items: center;
            gap: var(--spacing-sm);
            flex-shrink: 0;
        }

        .nav-logo a {
            display: flex;
            align-items: center;
            gap: var(--spacing-sm);
            font-weight: 800;
            font-size: 1.35rem;
            color: var(--primary-dark);
            letter-spacing: -0.5px;
        }

        .nav-logo .logo-icon {
            width: 40px;
            height: 40px;
            border-radius: var(--radius-md);
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-weight: 900;
            font-size: 1.1rem;
            flex-shrink: 0;
            box-shadow: 0 4px 12px rgba(26, 107, 255, 0.3);
        }

        .nav-logo .logo-icon span {
            letter-spacing: -1px;
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 2px;
            flex: 1;
            justify-content: center;
            flex-wrap: wrap;
        }

        .nav-links a {
            display: flex;
            align-items: center;
            gap: 4px;
            padding: 8px 14px;
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--text-secondary);
            border-radius: var(--radius-full);
            white-space: nowrap;
            position: relative;
            transition: all var(--transition-fast);
        }

        .nav-links a:hover {
            color: var(--primary);
            background: var(--primary-soft);
        }

        .nav-links a.active {
            color: var(--primary);
            background: var(--primary-light);
            font-weight: 600;
        }

        .nav-links a.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 50%;
            transform: translateX(-50%);
            width: 20px;
            height: 3px;
            background: var(--primary);
            border-radius: var(--radius-full);
        }

        .nav-actions {
            display: flex;
            align-items: center;
            gap: var(--spacing-md);
            flex-shrink: 0;
        }

        .nav-status {
            display: flex;
            align-items: center;
            gap: 6px;
            padding: 6px 12px;
            background: var(--bg-gray);
            border-radius: var(--radius-full);
            font-size: 0.82rem;
            color: var(--text-secondary);
            border: 1px solid var(--border);
        }

        .nav-status .dot {
            width: 7px;
            height: 7px;
            border-radius: 50%;
            background: #22c55e;
            animation: pulse 2s infinite;
        }

        @keyframes pulse {
            0%,
            100% {
                opacity: 1;
                transform: scale(1);
            }
            50% {
                opacity: 0.55;
                transform: scale(1.3);
            }
        }

        .nav-notify {
            position: relative;
            width: 40px;
            height: 40px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            background: var(--bg-gray);
            color: var(--text-secondary);
            border: 1px solid var(--border);
            transition: all var(--transition-fast);
        }

        .nav-notify:hover {
            background: var(--primary-soft);
            color: var(--primary);
            border-color: var(--primary-light);
        }

        .nav-notify .badge-dot {
            position: absolute;
            top: 8px;
            right: 8px;
            width: 8px;
            height: 8px;
            background: #ef4444;
            border-radius: 50%;
            border: 2px solid #fff;
        }

        .btn-primary-nav {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 10px 20px;
            background: var(--primary);
            color: #fff;
            font-weight: 600;
            font-size: 0.9rem;
            border-radius: var(--radius-full);
            transition: all var(--transition-fast);
            white-space: nowrap;
            box-shadow: 0 4px 14px rgba(26, 107, 255, 0.25);
        }

        .btn-primary-nav:hover {
            background: var(--primary-dark);
            box-shadow: 0 6px 20px rgba(26, 107, 255, 0.35);
            transform: translateY(-1px);
            color: #fff;
        }

        .btn-primary-nav:active {
            transform: translateY(0);
            box-shadow: 0 2px 8px rgba(26, 107, 255, 0.2);
        }

        .nav-toggle {
            display: none;
            width: 44px;
            height: 44px;
            border-radius: var(--radius-sm);
            background: var(--bg-gray);
            border: 1px solid var(--border);
            align-items: center;
            justify-content: center;
            flex-direction: column;
            gap: 4px;
            transition: all var(--transition-fast);
        }

        .nav-toggle:hover {
            background: var(--primary-soft);
            border-color: var(--primary-light);
        }

        .nav-toggle .bar {
            width: 20px;
            height: 2px;
            background: var(--text-secondary);
            border-radius: 2px;
            transition: all var(--transition-normal);
        }

        .nav-toggle.active .bar:nth-child(1) {
            transform: translateY(6px) rotate(45deg);
        }
        .nav-toggle.active .bar:nth-child(2) {
            opacity: 0;
        }
        .nav-toggle.active .bar:nth-child(3) {
            transform: translateY(-6px) rotate(-45deg);
        }

        .mobile-menu {
            display: none;
            position: fixed;
            top: 68px;
            left: 0;
            right: 0;
            bottom: 0;
            background: rgba(255, 255, 255, 0.98);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            z-index: 999;
            padding: var(--spacing-lg);
            flex-direction: column;
            gap: var(--spacing-sm);
            overflow-y: auto;
            border-top: 1px solid var(--border);
        }

        .mobile-menu.open {
            display: flex;
        }

        .mobile-menu a {
            padding: 14px 16px;
            border-radius: var(--radius-md);
            font-size: 1rem;
            font-weight: 500;
            color: var(--text-primary);
            background: var(--bg-gray);
            transition: all var(--transition-fast);
            display: flex;
            align-items: center;
            justify-content: space-between;
        }

        .mobile-menu a:hover {
            background: var(--primary-soft);
            color: var(--primary);
        }

        .mobile-menu a.active {
            background: var(--primary-light);
            color: var(--primary);
            font-weight: 600;
        }

        .mobile-menu .mobile-cta {
            margin-top: var(--spacing-md);
            display: flex;
            gap: var(--spacing-sm);
        }

        .mobile-menu .mobile-cta a {
            flex: 1;
            text-align: center;
            justify-content: center;
        }

        /* ========== Hero ========== */
        .hero {
            background: linear-gradient(180deg, #f2f7ff 0%, #ffffff 100%);
            border-bottom: 1px solid var(--border-light);
            position: relative;
            overflow: hidden;
            padding: var(--spacing-2xl) 0 var(--spacing-3xl);
        }

        .hero::before {
            content: '';
            position: absolute;
            top: -60px;
            right: -80px;
            width: 400px;
            height: 400px;
            background: radial-gradient(circle, rgba(26, 107, 255, 0.07) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .hero::after {
            content: '';
            position: absolute;
            bottom: -40px;
            left: -60px;
            width: 300px;
            height: 300px;
            background: radial-gradient(circle, rgba(15, 157, 143, 0.06) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .hero .container {
            position: relative;
            z-index: 1;
        }

        .hero-banner {
            display: grid;
            grid-template-columns: 1.2fr 0.8fr;
            gap: var(--spacing-2xl);
            align-items: center;
        }

        .hero-content {
            padding-right: var(--spacing-lg);
        }

        .hero-eyebrow {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 6px 16px;
            background: var(--primary-light);
            color: var(--primary-dark);
            font-weight: 600;
            font-size: 0.85rem;
            border-radius: var(--radius-full);
            margin-bottom: var(--spacing-md);
            letter-spacing: 0.3px;
        }

        .hero-eyebrow .tag-icon {
            width: 18px;
            height: 18px;
            border-radius: 50%;
            background: var(--primary);
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 0.7rem;
            font-weight: 700;
        }

        .hero h1 {
            font-size: 2.6rem;
            font-weight: 900;
            line-height: 1.25;
            color: var(--text-primary);
            letter-spacing: -1px;
            margin-bottom: var(--spacing-md);
        }

        .hero h1 .highlight {
            color: var(--primary);
            position: relative;
        }

        .hero h1 .highlight::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 0;
            right: 0;
            height: 8px;
            background: rgba(26, 107, 255, 0.18);
            border-radius: var(--radius-full);
            z-index: -1;
        }

        .hero-subtitle {
            font-size: 1.1rem;
            color: var(--text-secondary);
            line-height: 1.8;
            margin-bottom: var(--spacing-xl);
            max-width: 560px;
        }

        .hero-ctas {
            display: flex;
            gap: var(--spacing-md);
            flex-wrap: wrap;
            align-items: center;
        }

        .btn-hero-primary {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 14px 28px;
            background: var(--primary);
            color: #fff;
            font-weight: 700;
            font-size: 1rem;
            border-radius: var(--radius-full);
            transition: all var(--transition-normal);
            box-shadow: 0 8px 24px rgba(26, 107, 255, 0.3);
        }

        .btn-hero-primary:hover {
            background: var(--primary-dark);
            transform: translateY(-2px);
            box-shadow: 0 12px 32px rgba(26, 107, 255, 0.4);
            color: #fff;
        }

        .btn-hero-primary:active {
            transform: translateY(0);
            box-shadow: 0 4px 12px rgba(26, 107, 255, 0.25);
        }

        .btn-hero-secondary {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 14px 28px;
            background: #fff;
            color: var(--text-primary);
            font-weight: 600;
            font-size: 1rem;
            border-radius: var(--radius-full);
            border: 1.5px solid var(--border);
            transition: all var(--transition-normal);
        }

        .btn-hero-secondary:hover {
            border-color: var(--primary);
            color: var(--primary);
            transform: translateY(-2px);
            box-shadow: var(--shadow-md);
        }

        .hero-stats-row {
            display: flex;
            gap: var(--spacing-xl);
            margin-top: var(--spacing-xl);
            flex-wrap: wrap;
        }

        .hero-stat {
            display: flex;
            flex-direction: column;
            gap: 2px;
        }

        .hero-stat .stat-value {
            font-size: 1.5rem;
            font-weight: 800;
            color: var(--primary-dark);
            letter-spacing: -0.5px;
        }

        .hero-stat .stat-label {
            font-size: 0.85rem;
            color: var(--text-muted);
        }

        .hero-visual {
            display: flex;
            align-items: center;
            justify-content: center;
        }

        .hero-panel {
            background: #fff;
            border-radius: var(--radius-xl);
            box-shadow: var(--shadow-lg);
            border: 1px solid var(--border);
            padding: var(--spacing-xl);
            width: 100%;
            max-width: 420px;
            position: relative;
        }

        .hero-panel .panel-header {
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-bottom: var(--spacing-lg);
            padding-bottom: var(--spacing-md);
            border-bottom: 1px solid var(--border-light);
        }

        .hero-panel .panel-title {
            font-weight: 700;
            font-size: 1.05rem;
            color: var(--text-primary);
        }

        .hero-panel .panel-badge {
            padding: 4px 12px;
            background: var(--secondary-light);
            color: var(--secondary);
            font-size: 0.75rem;
            font-weight: 600;
            border-radius: var(--radius-full);
        }

        .hero-match-item {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 12px 0;
            border-bottom: 1px solid var(--border-light);
            gap: var(--spacing-sm);
        }

        .hero-match-item:last-child {
            border-bottom: none;
        }

        .hero-match-teams {
            display: flex;
            flex-direction: column;
            gap: 2px;
            flex: 1;
        }

        .hero-match-teams .team {
            font-weight: 600;
            font-size: 0.9rem;
            color: var(--text-primary);
        }

        .hero-match-score {
            font-weight: 800;
            font-size: 1.2rem;
            color: var(--primary);
            text-align: center;
            min-width: 50px;
        }

        .hero-match-status {
            font-size: 0.75rem;
            padding: 4px 10px;
            border-radius: var(--radius-full);
            background: var(--accent-light);
            color: var(--accent);
            font-weight: 600;
            white-space: nowrap;
        }

        .hero-match-status.live {
            background: #fee2e2;
            color: #dc2626;
        }

        .hero-match-status.finished {
            background: var(--bg-gray);
            color: var(--text-muted);
        }

        /* ========== Section Base ========== */
        section {
            padding: var(--spacing-3xl) 0;
        }

        .section-header {
            margin-bottom: var(--spacing-2xl);
        }

        .section-header .section-tag {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 6px 14px;
            background: var(--primary-soft);
            color: var(--primary-dark);
            font-weight: 600;
            font-size: 0.82rem;
            border-radius: var(--radius-full);
            margin-bottom: var(--spacing-sm);
            letter-spacing: 0.3px;
        }

        .section-header h2 {
            font-size: 1.8rem;
            font-weight: 800;
            color: var(--text-primary);
            letter-spacing: -0.5px;
            margin-bottom: var(--spacing-sm);
        }

        .section-header .section-desc {
            font-size: 1rem;
            color: var(--text-secondary);
            max-width: 640px;
            line-height: 1.8;
        }

        .section-header.center {
            text-align: center;
        }

        .section-header.center .section-desc {
            margin: 0 auto;
        }

        .section-header .section-link {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            color: var(--primary);
            font-weight: 600;
            font-size: 0.9rem;
            transition: all var(--transition-fast);
        }

        .section-header .section-link:hover {
            gap: 8px;
            color: var(--primary-dark);
        }

        /* ========== Metrics Strip ========== */
        .metrics-strip {
            background: var(--bg-dark);
            padding: var(--spacing-2xl) 0;
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
        }

        .metrics-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: var(--spacing-xl);
        }

        .metric-item {
            text-align: center;
            padding: var(--spacing-lg);
            border-radius: var(--radius-md);
            background: rgba(255, 255, 255, 0.04);
            border: 1px solid rgba(255, 255, 255, 0.08);
            transition: all var(--transition-normal);
        }

        .metric-item:hover {
            background: rgba(255, 255, 255, 0.08);
            border-color: rgba(255, 255, 255, 0.15);
            transform: translateY(-2px);
        }

        .metric-item .metric-value {
            font-size: 2.2rem;
            font-weight: 900;
            color: #fff;
            letter-spacing: -1px;
            margin-bottom: 4px;
        }

        .metric-item .metric-value .suffix {
            font-size: 1.1rem;
            font-weight: 600;
            color: var(--primary);
            margin-left: 2px;
        }

        .metric-item .metric-label {
            font-size: 0.9rem;
            color: var(--text-light);
            font-weight: 500;
        }

        /* ========== Coupon Grid ========== */
        .coupon-grid-section {
            background: var(--bg-gray);
        }

        .coupon-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: var(--spacing-lg);
        }

        .coupon-card {
            background: #fff;
            border-radius: var(--radius-lg);
            border: 1px solid var(--border);
            box-shadow: var(--shadow-sm);
            padding: var(--spacing-xl);
            position: relative;
            overflow: hidden;
            transition: all var(--transition-normal);
        }

        .coupon-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 4px;
            background: var(--primary);
            opacity: 0;
            transition: opacity var(--transition-normal);
        }

        .coupon-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-4px);
            border-color: var(--primary-light);
        }

        .coupon-card:hover::before {
            opacity: 1;
        }

        .coupon-card .coupon-badge {
            position: absolute;
            top: 16px;
            right: 16px;
            padding: 4px 10px;
            border-radius: var(--radius-full);
            font-size: 0.72rem;
            font-weight: 700;
            letter-spacing: 0.3px;
        }

        .coupon-card .coupon-badge.hot {
            background: #fee2e2;
            color: #dc2626;
        }

        .coupon-card .coupon-badge.free {
            background: var(--secondary-light);
            color: var(--secondary);
        }

        .coupon-card .coupon-badge.limited {
            background: var(--accent-light);
            color: var(--accent);
        }

        .coupon-card .coupon-icon {
            width: 48px;
            height: 48px;
            border-radius: var(--radius-md);
            background: var(--primary-soft);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.4rem;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: var(--spacing-md);
        }

        .coupon-card h3 {
            font-size: 1.15rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: var(--spacing-xs);
        }

        .coupon-card .coupon-subtitle {
            font-size: 0.85rem;
            color: var(--text-muted);
            margin-bottom: var(--spacing-md);
        }

        .coupon-card .coupon-features {
            list-style: none;
            margin-bottom: var(--spacing-lg);
        }

        .coupon-card .coupon-features li {
            display: flex;
            align-items: flex-start;
            gap: 8px;
            padding: 5px 0;
            font-size: 0.88rem;
            color: var(--text-secondary);
        }

        .coupon-card .coupon-features li::before {
            content: '✓';
            color: var(--primary);
            font-weight: 700;
            font-size: 0.8rem;
            flex-shrink: 0;
            margin-top: 2px;
        }

        .coupon-card .btn-coupon {
            display: block;
            width: 100%;
            padding: 10px 16px;
            text-align: center;
            border-radius: var(--radius-sm);
            font-weight: 600;
            font-size: 0.9rem;
            transition: all var(--transition-fast);
            background: var(--primary-soft);
            color: var(--primary-dark);
            border: 1px solid transparent;
        }

        .coupon-card .btn-coupon:hover {
            background: var(--primary);
            color: #fff;
            border-color: var(--primary);
        }

        /* ========== Usage Rules ========== */
        .usage-rules-section {
            background: #fff;
        }

        .rules-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: var(--spacing-lg);
        }

        .rule-card {
            display: flex;
            gap: var(--spacing-md);
            padding: var(--spacing-lg);
            background: var(--bg-gray);
            border-radius: var(--radius-md);
            border: 1px solid var(--border-light);
            transition: all var(--transition-normal);
        }

        .rule-card:hover {
            background: var(--primary-soft);
            border-color: var(--primary-light);
        }

        .rule-card .rule-number {
            width: 36px;
            height: 36px;
            flex-shrink: 0;
            border-radius: 50%;
            background: var(--primary);
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 0.9rem;
        }

        .rule-card h4 {
            font-size: 1rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 4px;
        }

        .rule-card p {
            font-size: 0.88rem;
            color: var(--text-secondary);
            line-height: 1.7;
        }

        /* ========== Focus Topics ========== */
        .focus-topics-section {
            background: var(--bg-gray);
        }

        .topics-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: var(--spacing-lg);
        }

        .topic-card {
            background: #fff;
            border-radius: var(--radius-lg);
            border: 1px solid var(--border);
            overflow: hidden;
            transition: all var(--transition-normal);
            display: flex;
            flex-direction: column;
        }

        .topic-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-4px);
            border-color: var(--primary-light);
        }

        .topic-card .topic-img {
            width: 100%;
            height: 150px;
            object-fit: cover;
            background: var(--bg-gray);
        }

        .topic-card .topic-body {
            padding: var(--spacing-lg);
            flex: 1;
            display: flex;
            flex-direction: column;
        }

        .topic-card h3 {
            font-size: 1.05rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 6px;
        }

        .topic-card p {
            font-size: 0.85rem;
            color: var(--text-secondary);
            line-height: 1.6;
            flex: 1;
            margin-bottom: var(--spacing-md);
        }

        .topic-card .topic-link {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            color: var(--primary);
            font-weight: 600;
            font-size: 0.85rem;
            transition: all var(--transition-fast);
        }

        .topic-card .topic-link:hover {
            gap: 8px;
            color: var(--primary-dark);
        }

        /* ========== Product Stage ========== */
        .product-stage-section {
            background: #fff;
            overflow: hidden;
        }

        .stage-wrapper {
            display: grid;
            grid-template-columns: 1fr 1.2fr;
            gap: var(--spacing-2xl);
            align-items: center;
        }

        .stage-text .stage-tag {
            display: inline-block;
            padding: 6px 14px;
            background: var(--primary-light);
            color: var(--primary-dark);
            font-weight: 600;
            font-size: 0.82rem;
            border-radius: var(--radius-full);
            margin-bottom: var(--spacing-md);
        }
        .stage-text h2 {
            font-size: 1.8rem;
            font-weight: 800;
            color: var(--text-primary);
            letter-spacing: -0.5px;
            margin-bottom: var(--spacing-md);
        }
        .stage-text p {
            font-size: 1rem;
            color: var(--text-secondary);
            line-height: 1.8;
            margin-bottom: var(--spacing-lg);
        }
        .stage-text .btn-stage {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 12px 24px;
            background: var(--primary);
            color: #fff;
            font-weight: 600;
            font-size: 0.95rem;
            border-radius: var(--radius-full);
            transition: all var(--transition-normal);
            box-shadow: 0 4px 14px rgba(26, 107, 255, 0.25);
        }
        .stage-text .btn-stage:hover {
            background: var(--primary-dark);
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(26, 107, 255, 0.35);
            color: #fff;
        }

        .stage-visual {
            position: relative;
            border-radius: var(--radius-xl);
            overflow: hidden;
            box-shadow: var(--shadow-lg);
            border: 1px solid var(--border);
        }
        .stage-visual img {
            width: 100%;
            height: 320px;
            object-fit: cover;
            display: block;
        }
        .stage-visual .stage-overlay {
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            padding: var(--spacing-lg);
            background: linear-gradient(180deg, transparent 0%, rgba(11, 28, 58, 0.85) 100%);
            color: #fff;
        }
        .stage-overlay .overlay-title {
            font-weight: 700;
            font-size: 1rem;
            margin-bottom: 4px;
        }
        .stage-overlay .overlay-desc {
            font-size: 0.82rem;
            opacity: 0.85;
        }

        /* ========== Core Features ========== */
        .core-features-section {
            background: var(--bg-gray);
        }

        .features-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: var(--spacing-lg);
        }

        .feature-card {
            background: #fff;
            border-radius: var(--radius-lg);
            border: 1px solid var(--border);
            padding: var(--spacing-xl);
            transition: all var(--transition-normal);
            position: relative;
            overflow: hidden;
        }
        .feature-card::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            height: 3px;
            background: var(--primary);
            transform: scaleX(0);
            transform-origin: left;
            transition: transform var(--transition-normal);
        }
        .feature-card:hover::after {
            transform: scaleX(1);
        }
        .feature-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-2px);
        }
        .feature-card .feature-icon {
            width: 44px;
            height: 44px;
            border-radius: var(--radius-md);
            background: var(--primary-soft);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.2rem;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: var(--spacing-md);
        }
        .feature-card h3 {
            font-size: 1.08rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 6px;
        }
        .feature-card p {
            font-size: 0.88rem;
            color: var(--text-secondary);
            line-height: 1.7;
        }

        /* ========== Data Comparison ========== */
        .comparison-section {
            background: #fff;
        }
        .comparison-table-wrapper {
            background: var(--bg-gray);
            border-radius: var(--radius-lg);
            border: 1px solid var(--border);
            overflow: hidden;
            padding: var(--spacing-xl);
            overflow-x: auto;
        }
        .comparison-table {
            width: 100%;
            border-collapse: collapse;
            min-width: 600px;
        }
        .comparison-table th,
        .comparison-table td {
            padding: 14px 18px;
            text-align: left;
            border-bottom: 1px solid var(--border);
            font-size: 0.9rem;
        }
        .comparison-table th {
            font-weight: 700;
            color: var(--text-primary);
            background: rgba(255, 255, 255, 0.6);
        }
        .comparison-table td {
            color: var(--text-secondary);
        }
        .comparison-table th:first-child,
        .comparison-table td:first-child {
            font-weight: 600;
            color: var(--text-primary);
        }
        .comparison-table .highlight-col {
            background: var(--primary-soft);
        }
        .comparison-table .highlight-col td {
            color: var(--primary-dark);
            font-weight: 600;
        }
        .comparison-table .check {
            color: #22c55e;
            font-weight: 700;
        }
        .comparison-table .cross {
            color: #ef4444;
            font-weight: 700;
        }

        /* ========== Brand Intro ========== */
        .brand-intro-section {
            background: var(--bg-dark);
            padding: var(--spacing-3xl) 0;
            position: relative;
            overflow: hidden;
        }
        .brand-intro-section::before {
            content: '';
            position: absolute;
            top: -100px;
            right: -100px;
            width: 500px;
            height: 500px;
            background: radial-gradient(circle, rgba(26, 107, 255, 0.15) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }
        .brand-intro-section .container {
            position: relative;
            z-index: 1;
        }
        .brand-intro-content {
            max-width: 800px;
        }
        .brand-intro-content h2 {
            font-size: 1.8rem;
            font-weight: 800;
            color: #fff;
            margin-bottom: var(--spacing-md);
            letter-spacing: -0.5px;
        }
        .brand-intro-content p {
            font-size: 1rem;
            color: rgba(255, 255, 255, 0.75);
            line-height: 1.9;
            margin-bottom: var(--spacing-md);
        }
        .brand-intro-content .brand-highlights {
            display: flex;
            gap: var(--spacing-xl);
            margin-top: var(--spacing-lg);
            flex-wrap: wrap;
        }
        .brand-highlights .brand-h-item {
            display: flex;
            align-items: center;
            gap: 8px;
            color: rgba(255, 255, 255, 0.85);
            font-size: 0.9rem;
        }
        .brand-highlights .brand-h-item .bh-dot {
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: var(--primary);
        }

        /* ========== News Center ========== */
        .news-center-section {
            background: #fff;
        }
        .news-layout {
            display: grid;
            grid-template-columns: 1.4fr 0.6fr;
            gap: var(--spacing-2xl);
        }
        .news-list {
            display: flex;
            flex-direction: column;
            gap: var(--spacing-md);
        }
        .news-item {
            display: flex;
            gap: var(--spacing-md);
            padding: var(--spacing-lg);
            background: var(--bg-gray);
            border-radius: var(--radius-md);
            border: 1px solid var(--border-light);
            transition: all var(--transition-normal);
        }
        .news-item:hover {
            background: #fff;
            border-color: var(--primary-light);
            box-shadow: var(--shadow-md);
        }
        .news-item .news-date {
            flex-shrink: 0;
            min-width: 80px;
            text-align: center;
            padding: 8px 10px;
            background: #fff;
            border-radius: var(--radius-sm);
            font-weight: 700;
            font-size: 0.8rem;
            color: var(--text-muted);
            border: 1px solid var(--border);
            align-self: flex-start;
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 2px;
        }
        .news-item .news-date .day {
            font-size: 1.4rem;
            font-weight: 900;
            color: var(--primary-dark);
        }
        .news-item .news-date .month {
            font-size: 0.75rem;
            text-transform: uppercase;
        }
        .news-item .news-body h4 {
            font-size: 1rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 4px;
        }
        .news-item .news-body p {
            font-size: 0.88rem;
            color: var(--text-secondary);
            line-height: 1.6;
            margin-bottom: 6px;
        }
        .news-item .news-body .news-read-more {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            font-size: 0.82rem;
            font-weight: 600;
            color: var(--primary);
            transition: all var(--transition-fast);
        }
        .news-item .news-body .news-read-more:hover {
            gap: 8px;
            color: var(--primary-dark);
        }
        .news-sidebar {
            background: var(--bg-gray);
            border-radius: var(--radius-lg);
            border: 1px solid var(--border);
            padding: var(--spacing-xl);
        }
        .news-sidebar h3 {
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: var(--spacing-md);
            padding-bottom: var(--spacing-sm);
            border-bottom: 2px solid var(--primary-light);
        }
        .news-sidebar ul {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: var(--spacing-sm);
        }
        .news-sidebar ul li {
            padding: 10px 12px;
            background: #fff;
            border-radius: var(--radius-sm);
            border: 1px solid var(--border-light);
            font-size: 0.88rem;
            color: var(--text-secondary);
            transition: all var(--transition-fast);
            cursor: pointer;
        }
        .news-sidebar ul li:hover {
            border-color: var(--primary-light);
            color: var(--primary);
            background: var(--primary-soft);
        }
        .news-sidebar ul li .side-count {
            display: inline-block;
            margin-left: 6px;
            padding: 1px 8px;
            background: var(--primary-light);
            color: var(--primary-dark);
            border-radius: var(--radius-full);
            font-size: 0.72rem;
            font-weight: 600;
        }

        /* ========== Use Scenarios ========== */
        .scenarios-section {
            background: var(--bg-gray);
        }
        .scenarios-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: var(--spacing-lg);
        }
        .scenario-card {
            background: #fff;
            border-radius: var(--radius-lg);
            padding: var(--spacing-xl);
            border: 1px solid var(--border);
            transition: all var(--transition-normal);
            position: relative;
            overflow: hidden;
        }
        .scenario-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 4px;
            background: var(--secondary);
            opacity: 0;
            transition: opacity var(--transition-normal);
        }
        .scenario-card:hover::before {
            opacity: 1;
        }
        .scenario-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-2px);
        }
        .scenario-card .scenario-tag {
            display: inline-block;
            padding: 4px 12px;
            background: var(--secondary-light);
            color: var(--secondary);
            font-size: 0.75rem;
            font-weight: 600;
            border-radius: var(--radius-full);
            margin-bottom: var(--spacing-sm);
        }
        .scenario-card h3 {
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 8px;
        }
        .scenario-card p {
            font-size: 0.9rem;
            color: var(--text-secondary);
            line-height: 1.7;
        }

        /* ========== Success Cases ========== */
        .success-cases-section {
            background: #fff;
        }
        .cases-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: var(--spacing-lg);
        }
        .case-card {
            padding: var(--spacing-xl);
            background: var(--bg-gray);
            border-radius: var(--radius-lg);
            border: 1px solid var(--border-light);
            transition: all var(--transition-normal);
        }
        .case-card:hover {
            border-color: var(--primary-light);
            box-shadow: var(--shadow-md);
        }
        .case-card .case-header {
            display: flex;
            align-items: center;
            gap: var(--spacing-md);
            margin-bottom: var(--spacing-md);
        }
        .case-card .case-avatar {
            width: 48px;
            height: 48px;
            border-radius: 50%;
            background: var(--primary-light);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 1.1rem;
            color: var(--primary-dark);
            flex-shrink: 0;
        }
        .case-card .case-user h4 {
            font-size: 1rem;
            font-weight: 700;
            color: var(--text-primary);
        }
        .case-card .case-user .case-role {
            font-size: 0.8rem;
            color: var(--text-muted);
        }
        .case-card .case-quote {
            font-size: 0.92rem;
            color: var(--text-secondary);
            line-height: 1.7;
            font-style: italic;
            padding-left: var(--spacing-md);
            border-left: 3px solid var(--primary-light);
        }

        /* ========== Reviews Wall ========== */
        .reviews-section {
            background: var(--bg-gray);
        }
        .reviews-summary {
            display: flex;
            gap: var(--spacing-xl);
            align-items: center;
            justify-content: center;
            margin-bottom: var(--spacing-2xl);
            padding: var(--spacing-xl);
            background: #fff;
            border-radius: var(--radius-lg);
            border: 1px solid var(--border);
        }
        .reviews-summary .rating-big {
            text-align: center;
        }
        .reviews-summary .rating-big .rating-num {
            font-size: 3rem;
            font-weight: 900;
            color: var(--primary-dark);
            letter-spacing: -2px;
        }
        .reviews-summary .rating-big .rating-stars {
            color: #f59e0b;
            font-size: 1.2rem;
            letter-spacing: 2px;
        }
        .reviews-summary .rating-big .rating-count {
            font-size: 0.85rem;
            color: var(--text-muted);
        }
        .reviews-summary .rating-bars {
            flex: 1;
            max-width: 400px;
            display: flex;
            flex-direction: column;
            gap: 6px;
        }
        .rating-bars .rating-bar-row {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 0.8rem;
            color: var(--text-muted);
        }
        .rating-bars .rating-bar-row .bar-track {
            flex: 1;
            height: 8px;
            background: var(--bg-gray);
            border-radius: var(--radius-full);
            overflow: hidden;
        }
        .rating-bars .rating-bar-row .bar-fill {
            height: 100%;
            background: var(--primary);
            border-radius: var(--radius-full);
            transition: width var(--transition-normal);
        }
        .reviews-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: var(--spacing-lg);
        }
        .review-card {
            background: #fff;
            border-radius: var(--radius-lg);
            padding: var(--spacing-xl);
            border: 1px solid var(--border);
            transition: all var(--transition-normal);
        }
        .review-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-2px);
        }
        .review-card .review-stars {
            color: #f59e0b;
            font-size: 0.9rem;
            letter-spacing: 1px;
            margin-bottom: var(--spacing-sm);
        }
        .review-card .review-text {
            font-size: 0.9rem;
            color: var(--text-secondary);
            line-height: 1.7;
            margin-bottom: var(--spacing-md);
        }
        .review-card .review-author {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 0.82rem;
            color: var(--text-muted);
        }
        .review-card .review-author .ra-avatar {
            width: 32px;
            height: 32px;
            border-radius: 50%;
            background: var(--primary-light);
            color: var(--primary-dark);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 0.8rem;
        }

        /* ========== FAQ ========== */
        .faq-section {
            background: #fff;
        }
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: var(--spacing-md);
        }
        .faq-item {
            background: var(--bg-gray);
            border-radius: var(--radius-md);
            border: 1px solid var(--border-light);
            overflow: hidden;
            transition: all var(--transition-normal);
        }
        .faq-item:hover {
            border-color: var(--primary-light);
        }
        .faq-item.active {
            border-color: var(--primary-light);
            box-shadow: var(--shadow-sm);
        }
        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: var(--spacing-md);
            padding: var(--spacing-lg);
            cursor: pointer;
            font-weight: 600;
            font-size: 1rem;
            color: var(--text-primary);
            transition: all var(--transition-fast);
            user-select: none;
        }
        .faq-question:hover {
            color: var(--primary);
        }
        .faq-question .faq-toggle {
            flex-shrink: 0;
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background: #fff;
            border: 1px solid var(--border);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            color: var(--text-muted);
            transition: all var(--transition-normal);
        }
        .faq-item.active .faq-toggle {
            background: var(--primary);
            color: #fff;
            border-color: var(--primary);
            transform: rotate(45deg);
        }
        .faq-answer {
            padding: 0 var(--spacing-lg) var(--spacing-lg);
            font-size: 0.9rem;
            color: var(--text-secondary);
            line-height: 1.8;
            display: none;
        }
        .faq-item.active .faq-answer {
            display: block;
        }

        /* ========== Final CTA ========== */
        .final-cta-section {
            background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 60%, #3478ff 100%);
            padding: var(--spacing-3xl) 0;
            position: relative;
            overflow: hidden;
        }
        .final-cta-section::before {
            content: '';
            position: absolute;
            top: -50%;
            right: -20%;
            width: 600px;
            height: 600px;
            background: radial-gradient(circle, rgba(255, 255, 255, 0.08) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }
        .final-cta-section .container {
            position: relative;
            z-index: 1;
            text-align: center;
        }
        .final-cta-section h2 {
            font-size: 2rem;
            font-weight: 800;
            color: #fff;
            letter-spacing: -0.5px;
            margin-bottom: var(--spacing-md);
        }
        .final-cta-section p {
            font-size: 1.05rem;
            color: rgba(255, 255, 255, 0.8);
            max-width: 600px;
            margin: 0 auto var(--spacing-xl);
            line-height: 1.8;
        }
        .final-cta-btns {
            display: flex;
            gap: var(--spacing-md);
            justify-content: center;
            flex-wrap: wrap;
        }
        .btn-cta-white {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 14px 30px;
            background: #fff;
            color: var(--primary-dark);
            font-weight: 700;
            font-size: 1rem;
            border-radius: var(--radius-full);
            transition: all var(--transition-normal);
            box-shadow: 0 8px 24px rgba(0, 0, 0, 0.2);
        }
        .btn-cta-white:hover {
            transform: translateY(-2px);
            box-shadow: 0 12px 32px rgba(0, 0, 0, 0.3);
            color: var(--primary-dark);
        }
        .btn-cta-outline {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 14px 30px;
            background: transparent;
            color: #fff;
            font-weight: 600;
            font-size: 1rem;
            border-radius: var(--radius-full);
            border: 1.5px solid rgba(255, 255, 255, 0.5);
            transition: all var(--transition-normal);
        }
        .btn-cta-outline:hover {
            background: rgba(255, 255, 255, 0.1);
            border-color: #fff;
            color: #fff;
            transform: translateY(-2px);
        }

        /* ========== Footer ========== */
        .site-footer {
            background: var(--bg-dark);
            padding: var(--spacing-3xl) 0 var(--spacing-lg);
            color: rgba(255, 255, 255, 0.7);
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.6fr 1fr 1fr 1.2fr;
            gap: var(--spacing-2xl);
            margin-bottom: var(--spacing-2xl);
        }
        .footer-brand .footer-logo {
            display: flex;
            align-items: center;
            gap: var(--spacing-sm);
            font-weight: 800;
            font-size: 1.3rem;
            color: #fff;
            margin-bottom: var(--spacing-md);
        }
        .footer-brand .footer-logo .logo-icon {
            width: 36px;
            height: 36px;
            border-radius: var(--radius-sm);
            background: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 900;
            font-size: 0.9rem;
            color: #fff;
        }
        .footer-brand p {
            font-size: 0.88rem;
            line-height: 1.8;
            color: rgba(255, 255, 255, 0.6);
            max-width: 320px;
        }
        .footer-col h4 {
            font-size: 0.95rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: var(--spacing-md);
        }
        .footer-col ul {
            display: flex;
            flex-direction: column;
            gap: 8px;
        }
        .footer-col ul a {
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.6);
            transition: all var(--transition-fast);
        }
        .footer-col ul a:hover {
            color: #fff;
            padding-left: 4px;
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding-top: var(--spacing-lg);
            display: flex;
            flex-wrap: wrap;
            gap: var(--spacing-md);
            align-items: center;
            justify-content: space-between;
            font-size: 0.82rem;
        }
        .footer-bottom a {
            color: rgba(255, 255, 255, 0.6);
            transition: all var(--transition-fast);
        }
        .footer-bottom a:hover {
            color: #fff;
        }
        .footer-bottom .footer-links {
            display: flex;
            gap: var(--spacing-md);
            flex-wrap: wrap;
        }

        /* ========== Responsive ========== */
        @media (max-width: 1024px) {
            .nav-links {
                gap: 0;
                flex-wrap: nowrap;
                overflow-x: auto;
                justify-content: flex-start;
                -webkit-overflow-scrolling: touch;
                scrollbar-width: none;
                -ms-overflow-style: none;
            }
            .nav-links::-webkit-scrollbar {
                display: none;
            }
            .nav-links a {
                padding: 8px 10px;
                font-size: 0.82rem;
                white-space: nowrap;
            }
            .nav-status {
                display: none;
            }
            .hero-banner {
                grid-template-columns: 1fr;
                gap: var(--spacing-xl);
            }
            .hero h1 {
                font-size: 2.2rem;
            }
            .hero-visual {
                max-width: 500px;
                margin: 0 auto;
            }
            .coupon-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .topics-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .features-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .stage-wrapper {
                grid-template-columns: 1fr;
            }
            .news-layout {
                grid-template-columns: 1fr;
            }
            .scenarios-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .reviews-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: var(--spacing-xl);
            }
        }

        @media (max-width: 768px) {
            .nav-toggle {
                display: flex;
            }
            .nav-links {
                display: none;
            }
            .nav-actions {
                display: none;
            }
            .nav-toolbar {
                padding: var(--spacing-sm) 0;
            }
            .hero {
                padding: var(--spacing-xl) 0 var(--spacing-2xl);
            }
            .hero h1 {
                font-size: 1.8rem;
                line-height: 1.3;
            }
            .hero-subtitle {
                font-size: 1rem;
            }
            .hero-ctas {
                flex-direction: column;
                gap: var(--spacing-sm);
            }
            .btn-hero-primary,
            .btn-hero-secondary {
                width: 100%;
                justify-content: center;
            }
            .hero-stats-row {
                gap: var(--spacing-md);
                justify-content: space-between;
            }
            .hero-stat .stat-value {
                font-size: 1.2rem;
            }
            .metrics-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: var(--spacing-md);
            }
            .metric-item .metric-value {
                font-size: 1.6rem;
            }
            .coupon-grid {
                grid-template-columns: 1fr;
            }
            .rules-grid {
                grid-template-columns: 1fr;
            }
            .topics-grid {
                grid-template-columns: 1fr;
            }
            .features-grid {
                grid-template-columns: 1fr;
            }
            .scenarios-grid {
                grid-template-columns: 1fr;
            }
            .cases-grid {
                grid-template-columns: 1fr;
            }
            .reviews-grid {
                grid-template-columns: 1fr;
            }
            .reviews-summary {
                flex-direction: column;
                text-align: center;
                gap: var(--spacing-md);
            }
            .section-header h2 {
                font-size: 1.5rem;
            }
            .stage-text h2 {
                font-size: 1.5rem;
            }
            .final-cta-section h2 {
                font-size: 1.6rem;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: var(--spacing-lg);
            }
            section {
                padding: var(--spacing-2xl) 0;
            }
        }

        @media (max-width: 520px) {
            .hero h1 {
                font-size: 1.5rem;
            }
            .hero-subtitle {
                font-size: 0.92rem;
            }
            .hero-stats-row {
                flex-direction: column;
                gap: var(--spacing-sm);
            }
            .hero-panel {
                padding: var(--spacing-lg);
            }
            .metrics-grid {
                grid-template-columns: 1fr 1fr;
                gap: var(--spacing-sm);
            }
            .metric-item {
                padding: var(--spacing-md);
            }
            .metric-item .metric-value {
                font-size: 1.3rem;
            }
            .section-header h2 {
                font-size: 1.35rem;
            }
            .btn-hero-primary,
            .btn-hero-secondary,
            .btn-cta-white,
            .btn-cta-outline {
                padding: 12px 20px;
                font-size: 0.9rem;
            }
            .news-item {
                flex-direction: column;
                gap: var(--spacing-sm);
            }
            .news-item .news-date {
                min-width: auto;
                align-self: flex-start;
                flex-direction: row;
                gap: 6px;
            }
            .news-item .news-date .day {
                font-size: 1rem;
            }
            .comparison-table-wrapper {
                padding: var(--spacing-md);
            }
            .comparison-table th,
            .comparison-table td {
                padding: 10px 12px;
                font-size: 0.8rem;
            }
            .faq-question {
                padding: var(--spacing-md);
                font-size: 0.92rem;
            }
            .faq-answer {
                padding: 0 var(--spacing-md) var(--spacing-md);
                font-size: 0.85rem;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
                gap: var(--spacing-sm);
            }
        }

/* roulang page: category1 */
:root {
            --primary: #1a6bff;
            --primary-dark: #0d4fc5;
            --primary-light: #e8f0ff;
            --primary-soft: #f2f7ff;
            --secondary: #0f9d8f;
            --secondary-light: #e8f7f5;
            --accent: #ff8a3d;
            --accent-light: #fff4ec;
            --bg-white: #ffffff;
            --bg-gray: #f6f8fb;
            --bg-dark: #0b1c3a;
            --bg-dark-light: #14294f;
            --text-primary: #1a1f36;
            --text-secondary: #4a5578;
            --text-muted: #7a86a8;
            --text-light: #9aa5c4;
            --border: #e8ecf4;
            --border-light: #f0f3f9;
            --radius-xs: 6px;
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 16px;
            --radius-xl: 20px;
            --radius-full: 999px;
            --shadow-sm: 0 2px 8px rgba(10, 25, 50, 0.05);
            --shadow-md: 0 4px 16px rgba(10, 25, 50, 0.08);
            --shadow-lg: 0 8px 32px rgba(10, 25, 50, 0.12);
            --shadow-xl: 0 16px 48px rgba(10, 25, 50, 0.16);
            --font-family: 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', Arial, sans-serif;
            --container-max: 1200px;
            --container-wide: 1320px;
            --transition-fast: 0.18s ease;
            --transition-normal: 0.28s ease;
            --transition-slow: 0.4s ease;
            --spacing-xs: 4px;
            --spacing-sm: 8px;
            --spacing-md: 16px;
            --spacing-lg: 24px;
            --spacing-xl: 32px;
            --spacing-2xl: 48px;
            --spacing-3xl: 64px;
            --spacing-4xl: 80px;
        }
        * {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            overflow-x: hidden;
        }
        body {
            font-family: var(--font-family);
            font-size: 16px;
            line-height: 1.7;
            color: var(--text-primary);
            background-color: var(--bg-white);
            overflow-x: hidden;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        a {
            text-decoration: none;
            color: inherit;
            transition: color var(--transition-fast);
        }
        button {
            font-family: inherit;
            cursor: pointer;
            border: none;
            background: none;
            transition: all var(--transition-fast);
        }
        input,
        textarea,
        select {
            font-family: inherit;
            font-size: inherit;
            outline: none;
            border: 1px solid var(--border);
            border-radius: var(--radius-sm);
            transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
        }
        input:focus,
        textarea:focus,
        select:focus {
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(26, 107, 255, 0.12);
        }
        .container {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 var(--spacing-lg);
        }
        .container-wide {
            max-width: var(--container-wide);
            margin: 0 auto;
            padding: 0 var(--spacing-lg);
        }

        /* Header / Nav */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: rgba(255, 255, 255, 0.96);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid var(--border);
            box-shadow: var(--shadow-sm);
            transition: all var(--transition-normal);
        }
        .site-header.scrolled {
            box-shadow: var(--shadow-md);
            border-bottom-color: var(--border);
        }
        .nav-toolbar {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: var(--spacing-md);
            padding: var(--spacing-md) 0;
        }
        .nav-logo {
            display: flex;
            align-items: center;
            gap: var(--spacing-sm);
            flex-shrink: 0;
        }
        .nav-logo a {
            display: flex;
            align-items: center;
            gap: var(--spacing-sm);
            font-weight: 800;
            font-size: 1.35rem;
            color: var(--primary-dark);
            letter-spacing: -0.5px;
        }
        .nav-logo .logo-icon {
            width: 40px;
            height: 40px;
            border-radius: var(--radius-md);
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-weight: 900;
            font-size: 1.1rem;
            flex-shrink: 0;
            box-shadow: 0 4px 12px rgba(26, 107, 255, 0.3);
        }
        .nav-logo .logo-icon span {
            letter-spacing: -1px;
        }
        .nav-links {
            display: flex;
            align-items: center;
            gap: 2px;
            flex: 1;
            justify-content: center;
            flex-wrap: wrap;
        }
        .nav-links a {
            display: flex;
            align-items: center;
            gap: 4px;
            padding: 8px 14px;
            font-size: 0.9rem;
            font-weight: 600;
            color: var(--text-secondary);
            border-radius: var(--radius-sm);
            position: relative;
            white-space: nowrap;
        }
        .nav-links a:hover {
            color: var(--primary);
            background: var(--primary-soft);
        }
        .nav-links a.active {
            color: var(--primary);
            background: var(--primary-soft);
        }
        .nav-links a.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 50%;
            transform: translateX(-50%);
            width: 18px;
            height: 2px;
            border-radius: 2px;
            background: var(--primary);
        }
        .nav-actions {
            display: flex;
            align-items: center;
            gap: var(--spacing-md);
            flex-shrink: 0;
        }
        .nav-status {
            display: flex;
            align-items: center;
            gap: 6px;
            font-size: 0.8rem;
            color: var(--text-muted);
            background: var(--bg-gray);
            padding: 6px 12px;
            border-radius: var(--radius-full);
            font-weight: 500;
        }
        .nav-status .dot {
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: #10b981;
            animation: pulse-dot 2s infinite;
        }
        @keyframes pulse-dot {
            0%, 100% { opacity: 1; transform: scale(1); }
            50% { opacity: 0.6; transform: scale(0.8); }
        }
        .nav-notify {
            width: 38px;
            height: 38px;
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--text-secondary);
            background: var(--bg-gray);
            position: relative;
            flex-shrink: 0;
        }
        .nav-notify:hover {
            background: var(--primary-soft);
            color: var(--primary);
        }
        .nav-notify .badge-dot {
            position: absolute;
            top: 6px;
            right: 7px;
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: #ef4444;
            border: 2px solid #fff;
        }
        .btn-primary-nav {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 10px 20px;
            background: var(--primary);
            color: #fff;
            font-weight: 700;
            font-size: 0.85rem;
            border-radius: var(--radius-sm);
            box-shadow: 0 4px 12px rgba(26, 107, 255, 0.25);
            white-space: nowrap;
        }
        .btn-primary-nav:hover {
            background: var(--primary-dark);
            box-shadow: 0 6px 16px rgba(26, 107, 255, 0.35);
            transform: translateY(-1px);
        }
        .nav-toggle {
            display: none;
            flex-direction: column;
            gap: 5px;
            width: 40px;
            height: 40px;
            align-items: center;
            justify-content: center;
            border-radius: var(--radius-sm);
            background: var(--bg-gray);
            flex-shrink: 0;
        }
        .nav-toggle .bar {
            width: 20px;
            height: 2px;
            background: var(--text-primary);
            border-radius: 2px;
            transition: all var(--transition-fast);
        }
        .nav-toggle.active .bar:nth-child(1) {
            transform: translateY(7px) rotate(45deg);
        }
        .nav-toggle.active .bar:nth-child(2) {
            opacity: 0;
        }
        .nav-toggle.active .bar:nth-child(3) {
            transform: translateY(-7px) rotate(-45deg);
        }

        /* Hero */
        .hero {
            position: relative;
            background: var(--bg-dark);
            overflow: hidden;
            min-height: 640px;
            display: flex;
            align-items: center;
            padding: var(--spacing-3xl) 0;
        }
        .hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
            opacity: 0.25;
            z-index: 0;
        }
        .hero::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(11, 28, 58, 0.95) 0%, rgba(11, 28, 58, 0.7) 40%, rgba(26, 107, 255, 0.35) 100%);
            z-index: 1;
        }
        .hero .container {
            position: relative;
            z-index: 2;
        }
        .hero-grid {
            display: grid;
            grid-template-columns: 1.1fr 0.9fr;
            gap: var(--spacing-3xl);
            align-items: center;
        }
        .hero-content {
            color: #fff;
        }
        .hero-label {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: rgba(26, 107, 255, 0.25);
            border: 1px solid rgba(26, 107, 255, 0.5);
            color: #a8c8ff;
            font-size: 0.8rem;
            font-weight: 600;
            padding: 6px 14px;
            border-radius: var(--radius-full);
            margin-bottom: var(--spacing-lg);
        }
        .hero-content h1 {
            font-size: 2.9rem;
            font-weight: 900;
            line-height: 1.2;
            letter-spacing: -0.8px;
            margin-bottom: var(--spacing-lg);
        }
        .hero-content h1 span {
            color: #6ea8ff;
        }
        .hero-content .hero-desc {
            font-size: 1.15rem;
            color: rgba(255, 255, 255, 0.82);
            line-height: 1.8;
            margin-bottom: var(--spacing-xl);
            max-width: 520px;
        }
        .hero-form {
            background: rgba(255, 255, 255, 0.08);
            backdrop-filter: blur(12px);
            border: 1px solid rgba(255, 255, 255, 0.15);
            border-radius: var(--radius-lg);
            padding: var(--spacing-xl);
            display: grid;
            gap: var(--spacing-md);
        }
        .hero-form h3 {
            color: #fff;
            font-size: 1.25rem;
            font-weight: 700;
            margin-bottom: var(--spacing-sm);
        }
        .hero-form p {
            color: rgba(255, 255, 255, 0.7);
            font-size: 0.9rem;
            margin-bottom: var(--spacing-md);
        }
        .hero-form .form-row {
            display: flex;
            gap: var(--spacing-sm);
        }
        .hero-form input {
            flex: 1;
            background: rgba(255, 255, 255, 0.12);
            border: 1px solid rgba(255, 255, 255, 0.25);
            border-radius: var(--radius-sm);
            padding: 12px 16px;
            color: #fff;
            font-size: 0.95rem;
        }
        .hero-form input::placeholder {
            color: rgba(255, 255, 255, 0.5);
        }
        .hero-form input:focus {
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(26, 107, 255, 0.25);
        }
        .hero-form .btn-form {
            background: var(--primary);
            color: #fff;
            padding: 12px 24px;
            border-radius: var(--radius-sm);
            font-weight: 700;
            font-size: 0.9rem;
            white-space: nowrap;
            box-shadow: 0 4px 12px rgba(26, 107, 255, 0.3);
        }
        .hero-form .btn-form:hover {
            background: var(--primary-dark);
            transform: translateY(-1px);
        }
        .hero-form .form-note {
            font-size: 0.75rem;
            color: rgba(255, 255, 255, 0.5);
            margin-top: var(--spacing-xs);
        }
        .hero-stats {
            display: flex;
            gap: var(--spacing-lg);
            margin-top: var(--spacing-xl);
            flex-wrap: wrap;
        }
        .hero-stat {
            display: flex;
            align-items: center;
            gap: var(--spacing-sm);
        }
        .hero-stat .stat-num {
            font-size: 1.8rem;
            font-weight: 900;
            color: #fff;
        }
        .hero-stat .stat-label {
            font-size: 0.8rem;
            color: rgba(255, 255, 255, 0.65);
        }

        /* Section common */
        .section {
            padding: var(--spacing-3xl) 0;
        }
        .section-gray {
            background: var(--bg-gray);
        }
        .section-white {
            background: var(--bg-white);
        }
        .section-tight {
            padding: var(--spacing-2xl) 0;
        }
        .section-head {
            margin-bottom: var(--spacing-2xl);
        }
        .section-head .label-tag {
            display: inline-block;
            background: var(--primary-light);
            color: var(--primary-dark);
            font-size: 0.78rem;
            font-weight: 700;
            padding: 5px 14px;
            border-radius: var(--radius-full);
            margin-bottom: var(--spacing-md);
            letter-spacing: 0.5px;
        }
        .section-head h2 {
            font-size: 2rem;
            font-weight: 900;
            line-height: 1.3;
            color: var(--text-primary);
            letter-spacing: -0.5px;
            margin-bottom: var(--spacing-md);
        }
        .section-head p {
            font-size: 1.05rem;
            color: var(--text-secondary);
            max-width: 650px;
            line-height: 1.8;
        }

        /* Live Score Panel */
        .live-panel {
            background: var(--bg-white);
            border-radius: var(--radius-xl);
            box-shadow: var(--shadow-lg);
            padding: var(--spacing-xl);
            border: 1px solid var(--border);
        }
        .live-panel-header {
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-bottom: var(--spacing-lg);
            flex-wrap: wrap;
            gap: var(--spacing-sm);
        }
        .live-panel-header h3 {
            font-size: 1.15rem;
            font-weight: 700;
            color: var(--text-primary);
            display: flex;
            align-items: center;
            gap: var(--spacing-sm);
        }
        .live-panel-header .live-indicator {
            display: inline-flex;
            align-items: center;
            gap: 5px;
            background: #fee2e2;
            color: #dc2626;
            font-size: 0.75rem;
            font-weight: 700;
            padding: 4px 10px;
            border-radius: var(--radius-full);
        }
        .live-panel-header .live-indicator .dot {
            width: 7px;
            height: 7px;
            border-radius: 50%;
            background: #dc2626;
            animation: pulse-dot 1.2s infinite;
        }
        .match-list {
            display: grid;
            gap: var(--spacing-sm);
        }
        .match-item {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: var(--spacing-md) var(--spacing-lg);
            background: var(--bg-gray);
            border-radius: var(--radius-md);
            transition: all var(--transition-fast);
            flex-wrap: wrap;
            gap: var(--spacing-sm);
        }
        .match-item:hover {
            background: var(--primary-soft);
            box-shadow: var(--shadow-sm);
        }
        .match-teams {
            display: flex;
            align-items: center;
            gap: var(--spacing-md);
            flex: 1;
            min-width: 180px;
        }
        .match-team {
            font-weight: 700;
            font-size: 0.95rem;
            color: var(--text-primary);
        }
        .match-score {
            font-size: 1.4rem;
            font-weight: 900;
            color: var(--primary);
            letter-spacing: 1px;
        }
        .match-info {
            display: flex;
            align-items: center;
            gap: var(--spacing-md);
            font-size: 0.8rem;
            color: var(--text-muted);
            flex-wrap: wrap;
        }
        .match-info .match-time {
            font-weight: 600;
            color: var(--text-secondary);
        }
        .match-info .match-league {
            background: var(--bg-white);
            padding: 4px 10px;
            border-radius: var(--radius-full);
            border: 1px solid var(--border);
            font-weight: 600;
        }

        /* Feature Cards */
        .features-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: var(--spacing-lg);
        }
        .feature-card {
            background: var(--bg-white);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: var(--spacing-xl);
            transition: all var(--transition-normal);
            position: relative;
            overflow: hidden;
        }
        .feature-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 3px;
            background: var(--primary);
            opacity: 0;
            transition: opacity var(--transition-normal);
        }
        .feature-card:hover {
            box-shadow: var(--shadow-lg);
            border-color: var(--primary-light);
            transform: translateY(-4px);
        }
        .feature-card:hover::before {
            opacity: 1;
        }
        .feature-icon {
            width: 50px;
            height: 50px;
            border-radius: var(--radius-md);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.4rem;
            margin-bottom: var(--spacing-md);
            background: var(--primary-soft);
            color: var(--primary);
        }
        .feature-card:nth-child(2) .feature-icon {
            background: var(--secondary-light);
            color: var(--secondary);
        }
        .feature-card:nth-child(3) .feature-icon {
            background: var(--accent-light);
            color: var(--accent);
        }
        .feature-card h3 {
            font-size: 1.15rem;
            font-weight: 700;
            margin-bottom: var(--spacing-sm);
            color: var(--text-primary);
        }
        .feature-card p {
            font-size: 0.9rem;
            color: var(--text-secondary);
            line-height: 1.7;
        }

        /* League Coverage */
        .league-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: var(--spacing-md);
        }
        .league-item {
            background: var(--bg-white);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            padding: var(--spacing-lg);
            text-align: center;
            transition: all var(--transition-fast);
            cursor: default;
        }
        .league-item:hover {
            border-color: var(--primary);
            box-shadow: var(--shadow-md);
            background: var(--primary-soft);
        }
        .league-item .league-icon {
            width: 44px;
            height: 44px;
            border-radius: 50%;
            margin: 0 auto var(--spacing-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 900;
            font-size: 1rem;
            background: var(--primary-light);
            color: var(--primary-dark);
        }
        .league-item h4 {
            font-size: 0.95rem;
            font-weight: 700;
            color: var(--text-primary);
        }
        .league-item p {
            font-size: 0.78rem;
            color: var(--text-muted);
        }

        /* Use Scenarios */
        .scenario-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: var(--spacing-lg);
        }
        .scenario-card {
            background: var(--bg-white);
            border-radius: var(--radius-lg);
            overflow: hidden;
            border: 1px solid var(--border);
            box-shadow: var(--shadow-sm);
            transition: all var(--transition-normal);
        }
        .scenario-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-4px);
        }
        .scenario-card img {
            width: 100%;
            height: 180px;
            object-fit: cover;
        }
        .scenario-body {
            padding: var(--spacing-lg);
        }
        .scenario-body h3 {
            font-size: 1.05rem;
            font-weight: 700;
            margin-bottom: var(--spacing-sm);
            color: var(--text-primary);
        }
        .scenario-body p {
            font-size: 0.9rem;
            color: var(--text-secondary);
            line-height: 1.7;
        }

        /* Tech Advantages */
        .adv-list {
            display: grid;
            gap: var(--spacing-md);
        }
        .adv-item {
            display: flex;
            align-items: flex-start;
            gap: var(--spacing-md);
            padding: var(--spacing-lg);
            background: var(--bg-white);
            border-radius: var(--radius-md);
            border: 1px solid var(--border);
            transition: all var(--transition-fast);
        }
        .adv-item:hover {
            border-color: var(--primary-light);
            box-shadow: var(--shadow-sm);
        }
        .adv-check {
            width: 24px;
            height: 24px;
            border-radius: 50%;
            background: var(--secondary-light);
            color: var(--secondary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 900;
            font-size: 0.8rem;
            flex-shrink: 0;
            margin-top: 2px;
        }
        .adv-item h4 {
            font-size: 0.95rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 2px;
        }
        .adv-item p {
            font-size: 0.85rem;
            color: var(--text-secondary);
        }

        /* Steps */
        .steps-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: var(--spacing-lg);
            position: relative;
        }
        .step-item {
            text-align: center;
            position: relative;
        }
        .step-num {
            width: 48px;
            height: 48px;
            border-radius: 50%;
            background: var(--primary);
            color: #fff;
            font-weight: 900;
            font-size: 1.1rem;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto var(--spacing-md);
            box-shadow: 0 4px 12px rgba(26, 107, 255, 0.3);
        }
        .step-item h4 {
            font-size: 1rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: var(--spacing-xs);
        }
        .step-item p {
            font-size: 0.85rem;
            color: var(--text-secondary);
        }

        /* Stats */
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: var(--spacing-lg);
        }
        .stat-card {
            background: var(--bg-white);
            border-radius: var(--radius-lg);
            padding: var(--spacing-xl);
            text-align: center;
            border: 1px solid var(--border);
            box-shadow: var(--shadow-sm);
            transition: all var(--transition-fast);
        }
        .stat-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-3px);
        }
        .stat-card .stat-value {
            font-size: 2.2rem;
            font-weight: 900;
            color: var(--primary);
            letter-spacing: -1px;
        }
        .stat-card .stat-title {
            font-size: 0.85rem;
            color: var(--text-secondary);
            margin-top: var(--spacing-xs);
        }

        /* Deep Content */
        .deep-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: var(--spacing-3xl);
            align-items: center;
        }
        .deep-img {
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-lg);
        }
        .deep-img img {
            width: 100%;
            height: 340px;
            object-fit: cover;
        }
        .deep-content h3 {
            font-size: 1.5rem;
            font-weight: 800;
            color: var(--text-primary);
            margin-bottom: var(--spacing-md);
            letter-spacing: -0.3px;
        }
        .deep-content p {
            color: var(--text-secondary);
            font-size: 0.95rem;
            line-height: 1.8;
            margin-bottom: var(--spacing-md);
        }
        .deep-content .deep-list {
            list-style: none;
            display: grid;
            gap: var(--spacing-sm);
        }
        .deep-content .deep-list li {
            display: flex;
            align-items: center;
            gap: var(--spacing-sm);
            font-size: 0.9rem;
            color: var(--text-secondary);
        }
        .deep-content .deep-list li::before {
            content: '✓';
            color: var(--secondary);
            font-weight: 900;
            font-size: 0.8rem;
            background: var(--secondary-light);
            width: 20px;
            height: 20px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
        }

        /* FAQ */
        .faq-list {
            display: grid;
            gap: var(--spacing-sm);
            max-width: 800px;
            margin: 0 auto;
        }
        .faq-item {
            background: var(--bg-white);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: all var(--transition-fast);
        }
        .faq-item:hover {
            border-color: var(--primary-light);
        }
        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: var(--spacing-md) var(--spacing-lg);
            cursor: pointer;
            font-weight: 600;
            color: var(--text-primary);
            font-size: 0.95rem;
            gap: var(--spacing-sm);
            user-select: none;
        }
        .faq-question .faq-icon {
            font-size: 1.2rem;
            color: var(--primary);
            transition: transform var(--transition-fast);
            flex-shrink: 0;
        }
        .faq-item.open .faq-icon {
            transform: rotate(45deg);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height var(--transition-normal);
            padding: 0 var(--spacing-lg);
        }
        .faq-item.open .faq-answer {
            max-height: 300px;
            padding-bottom: var(--spacing-md);
        }
        .faq-answer p {
            font-size: 0.88rem;
            color: var(--text-secondary);
            line-height: 1.7;
        }

        /* CTA */
        .cta-section {
            background: var(--bg-dark);
            color: #fff;
            padding: var(--spacing-3xl) 0;
        }
        .cta-section .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: var(--spacing-xl);
            flex-wrap: wrap;
        }
        .cta-content h2 {
            font-size: 2rem;
            font-weight: 900;
            letter-spacing: -0.5px;
            margin-bottom: var(--spacing-md);
        }
        .cta-content p {
            font-size: 1rem;
            color: rgba(255, 255, 255, 0.75);
            line-height: 1.8;
            max-width: 500px;
        }
        .cta-actions {
            display: flex;
            gap: var(--spacing-md);
            flex-wrap: wrap;
        }
        .btn-cta-white {
            background: #fff;
            color: var(--primary-dark);
            padding: 14px 28px;
            border-radius: var(--radius-sm);
            font-weight: 700;
            font-size: 0.95rem;
            box-shadow: 0 4px 16px rgba(255, 255, 255, 0.25);
        }
        .btn-cta-white:hover {
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(255, 255, 255, 0.35);
        }
        .btn-cta-outline {
            background: transparent;
            border: 1px solid rgba(255, 255, 255, 0.35);
            color: #fff;
            padding: 14px 28px;
            border-radius: var(--radius-sm);
            font-weight: 700;
            font-size: 0.95rem;
        }
        .btn-cta-outline:hover {
            border-color: #fff;
            background: rgba(255, 255, 255, 0.1);
        }

        /* Footer */
        .site-footer {
            background: #08142a;
            color: rgba(255, 255, 255, 0.75);
            padding: var(--spacing-2xl) 0 var(--spacing-lg);
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr 1fr;
            gap: var(--spacing-2xl);
            margin-bottom: var(--spacing-2xl);
        }
        .footer-brand .footer-logo {
            display: flex;
            align-items: center;
            gap: var(--spacing-sm);
            font-size: 1.2rem;
            font-weight: 800;
            color: #fff;
            margin-bottom: var(--spacing-md);
        }
        .footer-brand .footer-logo .logo-icon {
            width: 32px;
            height: 32px;
            border-radius: var(--radius-sm);
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-weight: 900;
            font-size: 0.9rem;
        }
        .footer-brand p {
            font-size: 0.85rem;
            line-height: 1.7;
            color: rgba(255, 255, 255, 0.55);
        }
        .footer-col h4 {
            font-size: 0.9rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: var(--spacing-md);
        }
        .footer-col ul {
            list-style: none;
            display: grid;
            gap: var(--spacing-sm);
        }
        .footer-col ul a {
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.55);
            transition: color var(--transition-fast);
        }
        .footer-col ul a:hover {
            color: #fff;
        }
        .footer-bottom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding-top: var(--spacing-lg);
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            flex-wrap: wrap;
            gap: var(--spacing-md);
        }
        .footer-bottom p {
            font-size: 0.75rem;
            color: rgba(255, 255, 255, 0.4);
            line-height: 1.6;
        }
        .footer-links {
            display: flex;
            align-items: center;
            gap: var(--spacing-sm);
            font-size: 0.8rem;
            color: rgba(255, 255, 255, 0.45);
        }
        .footer-links a {
            color: rgba(255, 255, 255, 0.55);
        }
        .footer-links a:hover {
            color: #fff;
        }

        /* Responsive */
        @media (max-width: 1024px) {
            .hero-grid {
                grid-template-columns: 1fr;
                gap: var(--spacing-xl);
            }
            .hero-content h1 {
                font-size: 2.2rem;
            }
            .features-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .scenario-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .league-grid {
                grid-template-columns: repeat(3, 1fr);
            }
            .steps-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .deep-grid {
                grid-template-columns: 1fr;
                gap: var(--spacing-xl);
            }
            .footer-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (max-width: 768px) {
            .nav-toggle {
                display: flex;
            }
            .nav-links {
                display: none;
                position: absolute;
                top: 100%;
                left: 0;
                right: 0;
                background: var(--bg-white);
                flex-direction: column;
                align-items: stretch;
                padding: var(--spacing-md);
                gap: 2px;
                border-bottom: 1px solid var(--border);
                box-shadow: var(--shadow-lg);
                z-index: 999;
            }
            .nav-links.open {
                display: flex;
            }
            .nav-links a {
                padding: 12px 16px;
                font-size: 0.95rem;
            }
            .nav-links a.active::after {
                display: none;
            }
            .nav-status {
                display: none;
            }
            .btn-primary-nav {
                padding: 8px 14px;
                font-size: 0.8rem;
            }
            .nav-notify {
                width: 34px;
                height: 34px;
            }
            .hero {
                min-height: auto;
                padding: var(--spacing-2xl) 0;
            }
            .hero-content h1 {
                font-size: 1.8rem;
            }
            .hero-content .hero-desc {
                font-size: 1rem;
            }
            .features-grid {
                grid-template-columns: 1fr;
            }
            .scenario-grid {
                grid-template-columns: 1fr;
            }
            .league-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .steps-grid {
                grid-template-columns: 1fr;
            }
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: var(--spacing-xl);
            }
            .cta-section .container {
                flex-direction: column;
                text-align: center;
            }
            .cta-actions {
                justify-content: center;
            }
            .section-head h2 {
                font-size: 1.5rem;
            }
            .match-item {
                padding: var(--spacing-sm) var(--spacing-md);
            }
            .hero-form .form-row {
                flex-direction: column;
            }
        }
        @media (max-width: 520px) {
            .hero-content h1 {
                font-size: 1.5rem;
            }
            .league-grid {
                grid-template-columns: 1fr;
            }
            .stats-grid {
                grid-template-columns: 1fr;
            }
            .container {
                padding: 0 var(--spacing-md);
            }
            .section {
                padding: var(--spacing-2xl) 0;
            }
            .nav-logo a {
                font-size: 1.1rem;
            }
            .nav-logo .logo-icon {
                width: 34px;
                height: 34px;
                font-size: 0.9rem;
            }
        }

/* roulang page: category3 */
:root {
            --primary: #1a6bff;
            --primary-dark: #0d4fc5;
            --primary-light: #e8f0ff;
            --primary-soft: #f2f7ff;
            --secondary: #0f9d8f;
            --secondary-light: #e8f7f5;
            --accent: #ff8a3d;
            --accent-light: #fff4ec;
            --bg-white: #ffffff;
            --bg-gray: #f6f8fb;
            --bg-dark: #0b1c3a;
            --bg-dark-light: #14294f;
            --text-primary: #1a1f36;
            --text-secondary: #4a5578;
            --text-muted: #7a86a8;
            --text-light: #9aa5c4;
            --border: #e8ecf4;
            --border-light: #f0f3f9;
            --radius-xs: 6px;
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 16px;
            --radius-xl: 20px;
            --radius-full: 999px;
            --shadow-sm: 0 2px 8px rgba(10, 25, 50, 0.05);
            --shadow-md: 0 4px 16px rgba(10, 25, 50, 0.08);
            --shadow-lg: 0 8px 32px rgba(10, 25, 50, 0.12);
            --shadow-xl: 0 16px 48px rgba(10, 25, 50, 0.16);
            --font-family: 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', Arial, sans-serif;
            --container-max: 1200px;
            --container-wide: 1320px;
            --transition-fast: 0.18s ease;
            --transition-normal: 0.28s ease;
            --transition-slow: 0.4s ease;
            --spacing-xs: 4px;
            --spacing-sm: 8px;
            --spacing-md: 16px;
            --spacing-lg: 24px;
            --spacing-xl: 32px;
            --spacing-2xl: 48px;
            --spacing-3xl: 64px;
            --spacing-4xl: 80px;
        }
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        body {
            font-family: var(--font-family);
            font-size: 16px;
            line-height: 1.7;
            color: var(--text-primary);
            background-color: var(--bg-white);
            overflow-x: hidden;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        a {
            text-decoration: none;
            color: inherit;
            transition: color var(--transition-fast);
        }
        button {
            font-family: inherit;
            cursor: pointer;
            border: none;
            background: none;
            transition: all var(--transition-fast);
        }
        input,
        textarea,
        select {
            font-family: inherit;
            font-size: inherit;
            outline: none;
            border: 1px solid var(--border);
            border-radius: var(--radius-sm);
            transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
        }
        input:focus,
        textarea:focus,
        select:focus {
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(26, 107, 255, 0.12);
        }
        .container {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 var(--spacing-lg);
        }
        .container-wide {
            max-width: var(--container-wide);
            margin: 0 auto;
            padding: 0 var(--spacing-lg);
        }

        /* ========== Header / Nav ========== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: rgba(255, 255, 255, 0.96);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid var(--border);
            box-shadow: var(--shadow-sm);
            transition: all var(--transition-normal);
        }
        .site-header.scrolled {
            box-shadow: var(--shadow-md);
            border-bottom-color: var(--border);
        }
        .nav-toolbar {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: var(--spacing-md);
            padding: var(--spacing-md) 0;
        }
        .nav-logo {
            display: flex;
            align-items: center;
            gap: var(--spacing-sm);
            flex-shrink: 0;
        }
        .nav-logo a {
            display: flex;
            align-items: center;
            gap: var(--spacing-sm);
            font-weight: 800;
            font-size: 1.35rem;
            color: var(--primary-dark);
            letter-spacing: -0.5px;
        }
        .nav-logo .logo-icon {
            width: 40px;
            height: 40px;
            border-radius: var(--radius-md);
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-weight: 900;
            font-size: 1.1rem;
            flex-shrink: 0;
            box-shadow: 0 4px 12px rgba(26, 107, 255, 0.3);
        }
        .nav-logo .logo-icon span {
            letter-spacing: -1px;
        }
        .nav-links {
            display: flex;
            align-items: center;
            gap: 2px;
            flex: 1;
            justify-content: center;
            flex-wrap: wrap;
        }
        .nav-links a {
            display: flex;
            align-items: center;
            gap: 4px;
            padding: 8px 14px;
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--text-secondary);
            border-radius: var(--radius-full);
            transition: all var(--transition-fast);
            white-space: nowrap;
        }
        .nav-links a:hover {
            color: var(--primary);
            background: var(--primary-soft);
        }
        .nav-links a.active {
            color: var(--primary);
            background: var(--primary-light);
            font-weight: 600;
        }
        .nav-actions {
            display: flex;
            align-items: center;
            gap: var(--spacing-md);
            flex-shrink: 0;
        }
        .nav-status {
            display: flex;
            align-items: center;
            gap: 6px;
            font-size: 0.82rem;
            color: var(--text-muted);
            white-space: nowrap;
        }
        .nav-status .dot {
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: var(--secondary);
            animation: pulse-dot 2s infinite;
        }
        @keyframes pulse-dot {
            0%, 100% { box-shadow: 0 0 0 0 rgba(15, 157, 143, 0.3); }
            50% { box-shadow: 0 0 0 6px rgba(15, 157, 143, 0); }
        }
        .nav-notify {
            position: relative;
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: var(--bg-gray);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--text-secondary);
            transition: all var(--transition-fast);
        }
        .nav-notify:hover {
            background: var(--primary-light);
            color: var(--primary);
        }
        .nav-notify .badge-dot {
            position: absolute;
            top: 8px;
            right: 8px;
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: var(--accent);
            border: 2px solid #fff;
        }
        .btn-primary-nav {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 10px 22px;
            background: var(--primary);
            color: #fff;
            font-weight: 600;
            font-size: 0.9rem;
            border-radius: var(--radius-full);
            transition: all var(--transition-fast);
            white-space: nowrap;
            box-shadow: 0 4px 16px rgba(26, 107, 255, 0.3);
        }
        .btn-primary-nav:hover {
            background: var(--primary-dark);
            box-shadow: 0 6px 20px rgba(26, 107, 255, 0.4);
            transform: translateY(-1px);
        }
        .btn-primary-nav:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 2px;
        }
        .nav-toggle {
            display: none;
            flex-direction: column;
            gap: 5px;
            padding: 8px;
            border-radius: var(--radius-sm);
            background: var(--bg-gray);
        }
        .nav-toggle .bar {
            width: 22px;
            height: 2px;
            background: var(--text-primary);
            border-radius: 2px;
            transition: all var(--transition-fast);
        }
        .nav-toggle.active .bar:nth-child(1) { transform: rotate(45deg) translate(5px, 5px); }
        .nav-toggle.active .bar:nth-child(2) { opacity: 0; }
        .nav-toggle.active .bar:nth-child(3) { transform: rotate(-45deg) translate(5px, -5px); }

        /* ========== Inner Page Hero ========== */
        .inner-hero {
            position: relative;
            background: linear-gradient(135deg, var(--bg-dark) 0%, #0f2d5c 55%, #1a4b8f 100%);
            padding: var(--spacing-4xl) 0 var(--spacing-3xl);
            overflow: hidden;
        }
        .inner-hero::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background-image: url('/assets/images/backpic/back-2.webp');
            background-size: cover;
            background-position: center;
            opacity: 0.18;
            pointer-events: none;
        }
        .inner-hero::after {
            content: '';
            position: absolute;
            bottom: -80px;
            right: -60px;
            width: 350px;
            height: 350px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(26, 107, 255, 0.35) 0%, transparent 70%);
            pointer-events: none;
        }
        .inner-hero .container {
            position: relative;
            z-index: 2;
        }
        .inner-hero-content {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: var(--spacing-2xl);
            align-items: center;
        }
        .inner-hero-text .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 0.85rem;
            color: var(--text-light);
            margin-bottom: var(--spacing-lg);
        }
        .inner-hero-text .breadcrumb a {
            color: var(--text-light);
            transition: color var(--transition-fast);
        }
        .inner-hero-text .breadcrumb a:hover {
            color: #fff;
        }
        .inner-hero-text .breadcrumb .separator {
            opacity: 0.5;
        }
        .inner-hero-text .breadcrumb .current {
            color: #fff;
            font-weight: 600;
        }
        .inner-hero-text h1 {
            font-size: 2.6rem;
            font-weight: 800;
            color: #fff;
            letter-spacing: -1px;
            margin-bottom: var(--spacing-md);
            line-height: 1.25;
        }
        .inner-hero-text .hero-subtitle {
            font-size: 1.1rem;
            color: var(--text-light);
            margin-bottom: var(--spacing-lg);
            line-height: 1.75;
            max-width: 520px;
        }
        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 8px 16px;
            background: rgba(255, 255, 255, 0.12);
            border: 1px solid rgba(255, 255, 255, 0.2);
            border-radius: var(--radius-full);
            font-size: 0.82rem;
            color: #fff;
            margin-bottom: var(--spacing-lg);
            backdrop-filter: blur(8px);
        }
        .hero-badge .icon-badge {
            width: 20px;
            height: 20px;
            border-radius: 50%;
            background: var(--secondary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 0.7rem;
        }
        .hero-btn-group {
            display: flex;
            align-items: center;
            gap: var(--spacing-md);
            flex-wrap: wrap;
        }
        .btn-hero-primary {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 14px 32px;
            background: var(--primary);
            color: #fff;
            font-weight: 600;
            font-size: 1rem;
            border-radius: var(--radius-full);
            transition: all var(--transition-fast);
            box-shadow: 0 8px 24px rgba(26, 107, 255, 0.4);
        }
        .btn-hero-primary:hover {
            background: var(--primary-dark);
            transform: translateY(-2px);
            box-shadow: 0 12px 32px rgba(26, 107, 255, 0.5);
        }
        .btn-hero-secondary {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 14px 28px;
            background: rgba(255, 255, 255, 0.1);
            color: #fff;
            font-weight: 500;
            font-size: 1rem;
            border-radius: var(--radius-full);
            border: 1px solid rgba(255, 255, 255, 0.25);
            transition: all var(--transition-fast);
        }
        .btn-hero-secondary:hover {
            background: rgba(255, 255, 255, 0.2);
            border-color: rgba(255, 255, 255, 0.4);
        }
        .inner-hero-visual {
            display: flex;
            justify-content: center;
            align-items: center;
        }
        .index-panel {
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid rgba(255, 255, 255, 0.15);
            border-radius: var(--radius-xl);
            padding: var(--spacing-xl);
            width: 100%;
            max-width: 480px;
            backdrop-filter: blur(16px);
        }
        .index-panel .panel-header {
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-bottom: var(--spacing-lg);
        }
        .index-panel .panel-header h3 {
            color: #fff;
            font-size: 1rem;
            font-weight: 600;
        }
        .index-panel .panel-header .live-tag {
            padding: 4px 12px;
            background: var(--accent);
            color: #fff;
            border-radius: var(--radius-full);
            font-size: 0.72rem;
            font-weight: 700;
            text-transform: uppercase;
        }
        .index-row {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 12px 0;
            border-bottom: 1px solid rgba(255, 255, 255, 0.1);
        }
        .index-row:last-child {
            border-bottom: none;
        }
        .index-row .index-name {
            color: var(--text-light);
            font-size: 0.88rem;
        }
        .index-row .index-value {
            color: #fff;
            font-weight: 700;
            font-size: 1.05rem;
        }
        .index-row .index-change {
            font-size: 0.82rem;
            font-weight: 600;
            padding: 2px 8px;
            border-radius: var(--radius-xs);
        }
        .index-row .index-change.up {
            color: #4ade80;
            background: rgba(74, 222, 128, 0.12);
        }
        .index-row .index-change.down {
            color: #f87171;
            background: rgba(248, 113, 113, 0.12);
        }
        .index-row .index-change.flat {
            color: var(--text-light);
            background: rgba(255, 255, 255, 0.08);
        }

        /* ========== Section Common ========== */
        .section {
            padding: var(--spacing-3xl) 0;
        }
        .section-alt {
            background: var(--bg-gray);
        }
        .section-white {
            background: var(--bg-white);
        }
        .section-dark {
            background: var(--bg-dark);
        }
        .section-header {
            margin-bottom: var(--spacing-2xl);
        }
        .section-header h2 {
            font-size: 1.9rem;
            font-weight: 800;
            color: var(--text-primary);
            letter-spacing: -0.5px;
            margin-bottom: var(--spacing-sm);
            line-height: 1.3;
        }
        .section-header p {
            font-size: 1rem;
            color: var(--text-secondary);
            max-width: 640px;
            line-height: 1.75;
        }
        .section-header .section-tag {
            display: inline-block;
            padding: 6px 16px;
            background: var(--primary-light);
            color: var(--primary);
            font-size: 0.8rem;
            font-weight: 600;
            border-radius: var(--radius-full);
            margin-bottom: var(--spacing-sm);
        }

        /* ========== Feature Cards ========== */
        .feature-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: var(--spacing-lg);
        }
        .feature-card {
            background: var(--bg-white);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: var(--spacing-xl);
            transition: all var(--transition-normal);
            box-shadow: var(--shadow-sm);
        }
        .feature-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-lg);
            border-color: var(--primary-light);
        }
        .feature-card .feature-icon {
            width: 48px;
            height: 48px;
            border-radius: var(--radius-md);
            background: var(--primary-light);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.2rem;
            margin-bottom: var(--spacing-md);
        }
        .feature-card h3 {
            font-size: 1.15rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: var(--spacing-sm);
        }
        .feature-card p {
            font-size: 0.92rem;
            color: var(--text-secondary);
            line-height: 1.7;
        }

        /* ========== Data Metrics ========== */
        .metrics-row {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: var(--spacing-md);
        }
        .metric-item {
            text-align: center;
            padding: var(--spacing-xl) var(--spacing-md);
            background: var(--bg-white);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-sm);
            transition: all var(--transition-normal);
        }
        .metric-item:hover {
            transform: translateY(-3px);
            box-shadow: var(--shadow-md);
        }
        .metric-item .metric-number {
            font-size: 2rem;
            font-weight: 800;
            color: var(--primary);
            line-height: 1.2;
            margin-bottom: var(--spacing-xs);
        }
        .metric-item .metric-label {
            font-size: 0.88rem;
            color: var(--text-muted);
        }

        /* ========== Analysis Dimensions ========== */
        .dimension-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: var(--spacing-lg);
        }
        .dimension-card {
            display: flex;
            gap: var(--spacing-lg);
            background: var(--bg-white);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: var(--spacing-xl);
            box-shadow: var(--shadow-sm);
            transition: all var(--transition-normal);
        }
        .dimension-card:hover {
            box-shadow: var(--shadow-md);
            border-color: var(--primary-light);
        }
        .dimension-card .dimension-img {
            flex-shrink: 0;
            width: 120px;
            height: 120px;
            border-radius: var(--radius-md);
            overflow: hidden;
        }
        .dimension-card .dimension-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        .dimension-card .dimension-body h3 {
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: var(--spacing-sm);
        }
        .dimension-card .dimension-body p {
            font-size: 0.92rem;
            color: var(--text-secondary);
            line-height: 1.7;
        }
        .dimension-card .dimension-body .dimension-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 6px;
            margin-top: var(--spacing-sm);
        }
        .dimension-card .dimension-body .dimension-tags span {
            padding: 4px 12px;
            background: var(--primary-soft);
            color: var(--primary);
            font-size: 0.78rem;
            border-radius: var(--radius-full);
            font-weight: 500;
        }

        /* ========== Use Cases ========== */
        .usecase-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: var(--spacing-lg);
        }
        .usecase-card {
            background: var(--bg-white);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: var(--spacing-xl);
            box-shadow: var(--shadow-sm);
            transition: all var(--transition-normal);
            text-align: center;
        }
        .usecase-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-lg);
        }
        .usecase-card .usecase-step {
            width: 44px;
            height: 44px;
            border-radius: 50%;
            background: var(--primary);
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 800;
            font-size: 1.1rem;
            margin: 0 auto var(--spacing-md);
            box-shadow: 0 4px 12px rgba(26, 107, 255, 0.3);
        }
        .usecase-card h3 {
            font-size: 1.05rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: var(--spacing-sm);
        }
        .usecase-card p {
            font-size: 0.88rem;
            color: var(--text-secondary);
            line-height: 1.7;
        }

        /* ========== Process Flow ========== */
        .process-flow {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: var(--spacing-lg);
            position: relative;
        }
        .process-flow::before {
            content: '';
            position: absolute;
            top: 28px;
            left: 10%;
            right: 10%;
            height: 2px;
            background: var(--border);
            z-index: 0;
        }
        .process-step {
            position: relative;
            z-index: 1;
            text-align: center;
        }
        .process-step .step-circle {
            width: 56px;
            height: 56px;
            border-radius: 50%;
            background: var(--bg-white);
            border: 2px solid var(--primary);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 800;
            font-size: 1.3rem;
            margin: 0 auto var(--spacing-md);
            transition: all var(--transition-fast);
        }
        .process-step:hover .step-circle {
            background: var(--primary);
            color: #fff;
            box-shadow: 0 8px 20px rgba(26, 107, 255, 0.35);
        }
        .process-step h3 {
            font-size: 1rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: var(--spacing-xs);
        }
        .process-step p {
            font-size: 0.85rem;
            color: var(--text-muted);
            line-height: 1.6;
        }

        /* ========== Case Showcase ========== */
        .case-showcase {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: var(--spacing-2xl);
            align-items: center;
        }
        .case-showcase .case-image {
            border-radius: var(--radius-xl);
            overflow: hidden;
            box-shadow: var(--shadow-lg);
        }
        .case-showcase .case-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        .case-showcase .case-content h2 {
            font-size: 1.6rem;
            font-weight: 800;
            color: var(--text-primary);
            margin-bottom: var(--spacing-md);
            letter-spacing: -0.5px;
        }
        .case-showcase .case-content p {
            font-size: 0.95rem;
            color: var(--text-secondary);
            line-height: 1.75;
            margin-bottom: var(--spacing-md);
        }
        .case-list {
            list-style: none;
            padding: 0;
        }
        .case-list li {
            display: flex;
            align-items: flex-start;
            gap: 10px;
            padding: 8px 0;
            font-size: 0.9rem;
            color: var(--text-secondary);
        }
        .case-list li .check-icon {
            width: 20px;
            height: 20px;
            border-radius: 50%;
            background: var(--secondary-light);
            color: var(--secondary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 0.7rem;
            flex-shrink: 0;
            margin-top: 3px;
        }

        /* ========== FAQ ========== */
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
        }
        .faq-item {
            background: var(--bg-white);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            margin-bottom: var(--spacing-md);
            overflow: hidden;
            transition: all var(--transition-fast);
        }
        .faq-item:hover {
            border-color: var(--primary-light);
            box-shadow: var(--shadow-sm);
        }
        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: var(--spacing-md);
            padding: var(--spacing-lg);
            cursor: pointer;
            font-weight: 600;
            font-size: 0.98rem;
            color: var(--text-primary);
            transition: color var(--transition-fast);
        }
        .faq-question:hover {
            color: var(--primary);
        }
        .faq-question .faq-toggle {
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background: var(--primary-soft);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1rem;
            font-weight: 700;
            flex-shrink: 0;
            transition: all var(--transition-fast);
        }
        .faq-item.open .faq-toggle {
            background: var(--primary);
            color: #fff;
            transform: rotate(45deg);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height var(--transition-normal), padding var(--transition-normal);
            padding: 0 var(--spacing-lg);
        }
        .faq-item.open .faq-answer {
            max-height: 300px;
            padding-bottom: var(--spacing-lg);
        }
        .faq-answer p {
            font-size: 0.9rem;
            color: var(--text-secondary);
            line-height: 1.75;
        }

        /* ========== CTA ========== */
        .cta-section {
            background: linear-gradient(135deg, var(--bg-dark) 0%, #0f2d5c 60%, #1a4b8f 100%);
            padding: var(--spacing-3xl) 0;
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            top: -100px;
            right: -80px;
            width: 400px;
            height: 400px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(26, 107, 255, 0.3) 0%, transparent 70%);
            pointer-events: none;
        }
        .cta-section::after {
            content: '';
            position: absolute;
            bottom: -120px;
            left: -60px;
            width: 300px;
            height: 300px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(15, 157, 143, 0.25) 0%, transparent 70%);
            pointer-events: none;
        }
        .cta-section .container {
            position: relative;
            z-index: 2;
            text-align: center;
        }
        .cta-section h2 {
            font-size: 2rem;
            font-weight: 800;
            color: #fff;
            margin-bottom: var(--spacing-md);
            letter-spacing: -0.5px;
        }
        .cta-section p {
            font-size: 1.05rem;
            color: var(--text-light);
            margin-bottom: var(--spacing-xl);
            max-width: 600px;
            margin-left: auto;
            margin-right: auto;
            line-height: 1.75;
        }
        .cta-btn-group {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: var(--spacing-md);
            flex-wrap: wrap;
        }
        .btn-cta-primary {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 16px 40px;
            background: var(--primary);
            color: #fff;
            font-weight: 700;
            font-size: 1.05rem;
            border-radius: var(--radius-full);
            transition: all var(--transition-fast);
            box-shadow: 0 8px 24px rgba(26, 107, 255, 0.45);
        }
        .btn-cta-primary:hover {
            background: var(--primary-dark);
            transform: translateY(-2px);
            box-shadow: 0 12px 36px rgba(26, 107, 255, 0.55);
        }
        .btn-cta-secondary {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 16px 32px;
            background: rgba(255, 255, 255, 0.1);
            color: #fff;
            font-weight: 500;
            font-size: 1rem;
            border-radius: var(--radius-full);
            border: 1px solid rgba(255, 255, 255, 0.25);
            transition: all var(--transition-fast);
        }
        .btn-cta-secondary:hover {
            background: rgba(255, 255, 255, 0.2);
            border-color: rgba(255, 255, 255, 0.4);
        }

        /* ========== Footer ========== */
        .site-footer {
            background: var(--bg-dark);
            padding: var(--spacing-3xl) 0 var(--spacing-lg);
            color: var(--text-light);
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: var(--spacing-2xl);
            margin-bottom: var(--spacing-2xl);
        }
        .footer-brand .footer-logo {
            display: flex;
            align-items: center;
            gap: var(--spacing-sm);
            font-weight: 800;
            font-size: 1.2rem;
            color: #fff;
            margin-bottom: var(--spacing-md);
        }
        .footer-brand .footer-logo .logo-icon {
            width: 36px;
            height: 36px;
            border-radius: var(--radius-sm);
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-weight: 900;
            font-size: 1rem;
        }
        .footer-brand p {
            font-size: 0.88rem;
            color: var(--text-light);
            line-height: 1.7;
            max-width: 320px;
        }
        .footer-col h4 {
            font-size: 0.95rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: var(--spacing-md);
        }
        .footer-col ul {
            list-style: none;
            padding: 0;
        }
        .footer-col ul li {
            margin-bottom: var(--spacing-sm);
        }
        .footer-col ul li a {
            font-size: 0.88rem;
            color: var(--text-light);
            transition: color var(--transition-fast);
        }
        .footer-col ul li a:hover {
            color: #fff;
        }
        .footer-bottom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: var(--spacing-lg);
            padding-top: var(--spacing-lg);
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            flex-wrap: wrap;
        }
        .footer-bottom p {
            font-size: 0.82rem;
            color: var(--text-muted);
            line-height: 1.6;
        }
        .footer-links {
            display: flex;
            align-items: center;
            gap: var(--spacing-sm);
            font-size: 0.82rem;
            color: var(--text-muted);
        }
        .footer-links a {
            color: var(--text-light);
            transition: color var(--transition-fast);
        }
        .footer-links a:hover {
            color: #fff;
        }

        /* ========== Responsive ========== */
        @media (max-width: 1024px) {
            .inner-hero-content {
                grid-template-columns: 1fr;
                gap: var(--spacing-xl);
            }
            .inner-hero-visual {
                justify-content: flex-start;
            }
            .feature-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .metrics-row {
                grid-template-columns: repeat(2, 1fr);
            }
            .dimension-grid {
                grid-template-columns: 1fr;
            }
            .usecase-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .process-flow {
                grid-template-columns: repeat(2, 1fr);
                gap: var(--spacing-xl);
            }
            .process-flow::before {
                display: none;
            }
            .case-showcase {
                grid-template-columns: 1fr;
                gap: var(--spacing-xl);
            }
            .footer-grid {
                grid-template-columns: 2fr 1fr 1fr;
            }
        }
        @media (max-width: 768px) {
            .nav-toggle {
                display: flex;
            }
            .nav-links {
                display: none;
                position: absolute;
                top: 100%;
                left: 0;
                right: 0;
                background: var(--bg-white);
                flex-direction: column;
                align-items: flex-start;
                padding: var(--spacing-md) var(--spacing-lg);
                box-shadow: var(--shadow-lg);
                border-bottom: 1px solid var(--border);
                gap: 4px;
            }
            .nav-links.open {
                display: flex;
            }
            .nav-links a {
                width: 100%;
                padding: 10px 14px;
                font-size: 0.95rem;
            }
            .nav-status {
                display: none;
            }
            .inner-hero-text h1 {
                font-size: 1.9rem;
            }
            .feature-grid {
                grid-template-columns: 1fr;
            }
            .metrics-row {
                grid-template-columns: repeat(2, 1fr);
            }
            .usecase-grid {
                grid-template-columns: 1fr;
            }
            .process-flow {
                grid-template-columns: 1fr;
            }
            .dimension-card {
                flex-direction: column;
                gap: var(--spacing-md);
            }
            .dimension-card .dimension-img {
                width: 100%;
                height: 160px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: var(--spacing-xl);
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
            .footer-links {
                flex-wrap: wrap;
                justify-content: center;
            }
            .section {
                padding: var(--spacing-2xl) 0;
            }
            .section-header h2 {
                font-size: 1.5rem;
            }
        }
        @media (max-width: 520px) {
            body {
                font-size: 15px;
            }
            .container {
                padding: 0 var(--spacing-md);
            }
            .nav-toolbar {
                padding: var(--spacing-sm) 0;
            }
            .nav-logo a {
                font-size: 1.1rem;
            }
            .nav-logo .logo-icon {
                width: 34px;
                height: 34px;
                font-size: 0.9rem;
            }
            .btn-primary-nav {
                padding: 8px 16px;
                font-size: 0.8rem;
            }
            .inner-hero {
                padding: var(--spacing-2xl) 0;
            }
            .inner-hero-text h1 {
                font-size: 1.6rem;
            }
            .inner-hero-text .hero-subtitle {
                font-size: 0.95rem;
            }
            .index-panel {
                padding: var(--spacing-lg);
            }
            .metrics-row {
                grid-template-columns: 1fr;
            }
            .hero-btn-group {
                flex-direction: column;
                align-items: stretch;
            }
            .btn-hero-primary,
            .btn-hero-secondary {
                justify-content: center;
            }
            .cta-section h2 {
                font-size: 1.5rem;
            }
            .cta-btn-group {
                flex-direction: column;
            }
            .btn-cta-primary,
            .btn-cta-secondary {
                justify-content: center;
            }
        }

/* roulang page: category2 */
:root {
            --primary: #1a6bff;
            --primary-dark: #0d4fc5;
            --primary-light: #e8f0ff;
            --primary-soft: #f2f7ff;
            --secondary: #0f9d8f;
            --secondary-light: #e8f7f5;
            --accent: #ff8a3d;
            --accent-light: #fff4ec;
            --bg-white: #ffffff;
            --bg-gray: #f6f8fb;
            --bg-dark: #0b1c3a;
            --bg-dark-light: #14294f;
            --text-primary: #1a1f36;
            --text-secondary: #4a5578;
            --text-muted: #7a86a8;
            --text-light: #9aa5c4;
            --border: #e8ecf4;
            --border-light: #f0f3f9;
            --radius-xs: 6px;
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 16px;
            --radius-xl: 20px;
            --radius-full: 999px;
            --shadow-sm: 0 2px 8px rgba(10, 25, 50, 0.05);
            --shadow-md: 0 4px 16px rgba(10, 25, 50, 0.08);
            --shadow-lg: 0 8px 32px rgba(10, 25, 50, 0.12);
            --shadow-xl: 0 16px 48px rgba(10, 25, 50, 0.16);
            --font-family: 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', Arial, sans-serif;
            --container-max: 1200px;
            --container-wide: 1320px;
            --transition-fast: 0.18s ease;
            --transition-normal: 0.28s ease;
            --transition-slow: 0.4s ease;
            --spacing-xs: 4px;
            --spacing-sm: 8px;
            --spacing-md: 16px;
            --spacing-lg: 24px;
            --spacing-xl: 32px;
            --spacing-2xl: 48px;
            --spacing-3xl: 64px;
            --spacing-4xl: 80px;
        }
        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        body {
            font-family: var(--font-family);
            font-size: 16px;
            line-height: 1.7;
            color: var(--text-primary);
            background-color: var(--bg-white);
            overflow-x: hidden;
            margin: 0;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        a {
            text-decoration: none;
            color: inherit;
            transition: color var(--transition-fast);
        }
        button {
            font-family: inherit;
            cursor: pointer;
            border: none;
            background: none;
            transition: all var(--transition-fast);
        }
        input,
        textarea,
        select {
            font-family: inherit;
            font-size: inherit;
            outline: none;
            border: 1px solid var(--border);
            border-radius: var(--radius-sm);
            transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
        }
        input:focus,
        textarea:focus,
        select:focus {
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(26, 107, 255, 0.12);
        }
        .container {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 var(--spacing-lg);
        }
        .container-wide {
            max-width: var(--container-wide);
            margin: 0 auto;
            padding: 0 var(--spacing-lg);
        }
        * {
            box-sizing: border-box;
        }

        /* ========== Header / Nav ========== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: rgba(255, 255, 255, 0.96);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid var(--border);
            box-shadow: var(--shadow-sm);
            transition: all var(--transition-normal);
        }
        .site-header.scrolled {
            box-shadow: var(--shadow-md);
            border-bottom-color: var(--border);
        }
        .nav-toolbar {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: var(--spacing-md);
            padding: var(--spacing-md) 0;
        }
        .nav-logo {
            display: flex;
            align-items: center;
            gap: var(--spacing-sm);
            flex-shrink: 0;
        }
        .nav-logo a {
            display: flex;
            align-items: center;
            gap: var(--spacing-sm);
            font-weight: 800;
            font-size: 1.35rem;
            color: var(--primary-dark);
            letter-spacing: -0.5px;
        }
        .nav-logo .logo-icon {
            width: 40px;
            height: 40px;
            border-radius: var(--radius-md);
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-weight: 900;
            font-size: 1.1rem;
            flex-shrink: 0;
            box-shadow: 0 4px 12px rgba(26, 107, 255, 0.3);
        }
        .nav-logo .logo-icon span {
            letter-spacing: -1px;
        }
        .nav-links {
            display: flex;
            align-items: center;
            gap: 2px;
            flex: 1;
            justify-content: center;
            flex-wrap: wrap;
        }
        .nav-links a {
            display: flex;
            align-items: center;
            gap: 4px;
            padding: 8px 14px;
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--text-secondary);
            border-radius: var(--radius-sm);
            transition: all var(--transition-fast);
            white-space: nowrap;
        }
        .nav-links a:hover {
            color: var(--primary);
            background: var(--primary-soft);
        }
        .nav-links a.active {
            color: var(--primary);
            font-weight: 700;
            background: var(--primary-soft);
            box-shadow: inset 0 -2px 0 var(--primary);
        }
        .nav-actions {
            display: flex;
            align-items: center;
            gap: var(--spacing-md);
            flex-shrink: 0;
        }
        .nav-status {
            display: flex;
            align-items: center;
            gap: 6px;
            font-size: 0.8rem;
            color: var(--text-muted);
            font-weight: 500;
            white-space: nowrap;
        }
        .nav-status .dot {
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: var(--secondary);
            animation: pulse-dot 2s infinite;
        }
        @keyframes pulse-dot {
            0%, 100% { box-shadow: 0 0 0 0 rgba(15, 157, 143, 0.4); }
            50% { box-shadow: 0 0 0 4px rgba(15, 157, 143, 0.1); }
        }
        .nav-notify {
            position: relative;
            width: 36px;
            height: 36px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--text-secondary);
            background: var(--bg-gray);
            transition: all var(--transition-fast);
        }
        .nav-notify:hover {
            color: var(--primary);
            background: var(--primary-soft);
        }
        .nav-notify .badge-dot {
            position: absolute;
            top: 6px;
            right: 7px;
            width: 6px;
            height: 6px;
            border-radius: 50%;
            background: var(--accent);
        }
        .btn-primary-nav {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 10px 20px;
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
            color: #fff;
            font-weight: 700;
            font-size: 0.9rem;
            border-radius: var(--radius-full);
            box-shadow: 0 4px 14px rgba(26, 107, 255, 0.35);
            transition: all var(--transition-fast);
            white-space: nowrap;
        }
        .btn-primary-nav:hover {
            box-shadow: 0 6px 20px rgba(26, 107, 255, 0.45);
            transform: translateY(-1px);
            color: #fff;
        }
        .btn-primary-nav:active {
            transform: translateY(0);
            box-shadow: 0 2px 8px rgba(26, 107, 255, 0.3);
        }
        .nav-toggle {
            display: none;
            flex-direction: column;
            gap: 4px;
            width: 40px;
            height: 40px;
            align-items: center;
            justify-content: center;
            border-radius: var(--radius-sm);
            background: var(--bg-gray);
        }
        .nav-toggle .bar {
            width: 20px;
            height: 2px;
            background: var(--text-primary);
            border-radius: 2px;
            transition: all var(--transition-normal);
        }
        .nav-toggle.active .bar:nth-child(1) {
            transform: rotate(45deg) translate(4px, 4px);
        }
        .nav-toggle.active .bar:nth-child(2) {
            opacity: 0;
        }
        .nav-toggle.active .bar:nth-child(3) {
            transform: rotate(-45deg) translate(4px, -4px);
        }

        /* ========== Page Hero Banner ========== */
        .page-hero {
            background-image: url('/assets/images/backpic/back-2.webp');
            background-size: cover;
            background-position: center;
            background-repeat: no-repeat;
            position: relative;
            padding: var(--spacing-3xl) 0 var(--spacing-2xl);
            border-bottom: 1px solid var(--border);
        }
        .page-hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(11, 28, 58, 0.88) 0%, rgba(11, 28, 58, 0.72) 50%, rgba(26, 107, 255, 0.55) 100%);
            z-index: 0;
        }
        .page-hero .container {
            position: relative;
            z-index: 1;
        }
        .page-hero-content {
            display: flex;
            flex-wrap: wrap;
            align-items: flex-end;
            justify-content: space-between;
            gap: var(--spacing-xl);
        }
        .page-hero-text {
            flex: 1 1 520px;
            max-width: 720px;
        }
        .page-breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.75);
            margin-bottom: var(--spacing-md);
            flex-wrap: wrap;
        }
        .page-breadcrumb a {
            color: rgba(255, 255, 255, 0.75);
            transition: color var(--transition-fast);
        }
        .page-breadcrumb a:hover {
            color: #fff;
        }
        .page-breadcrumb .separator {
            color: rgba(255, 255, 255, 0.4);
        }
        .page-breadcrumb .current {
            color: var(--accent);
            font-weight: 600;
        }
        .page-hero h1 {
            font-size: 2.6rem;
            line-height: 1.25;
            font-weight: 900;
            color: #fff;
            margin: 0 0 var(--spacing-md);
            letter-spacing: -0.5px;
        }
        .page-hero h1 .highlight {
            color: var(--accent);
        }
        .page-hero-subtitle {
            font-size: 1.12rem;
            line-height: 1.75;
            color: rgba(255, 255, 255, 0.85);
            margin: 0 0 var(--spacing-lg);
            max-width: 640px;
        }
        .page-hero-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            margin: 0 0 var(--spacing-lg);
        }
        .page-hero-tags .tag-badge {
            padding: 6px 16px;
            border-radius: var(--radius-full);
            background: rgba(255, 255, 255, 0.15);
            backdrop-filter: blur(8px);
            color: #fff;
            font-size: 0.82rem;
            font-weight: 500;
            border: 1px solid rgba(255, 255, 255, 0.25);
            transition: all var(--transition-fast);
        }
        .page-hero-tags .tag-badge:hover {
            background: rgba(255, 255, 255, 0.25);
            border-color: rgba(255, 255, 255, 0.4);
        }
        .page-hero-side {
            flex: 0 0 280px;
            display: flex;
            flex-direction: column;
            gap: var(--spacing-md);
        }
        .hero-stat-card {
            background: rgba(255, 255, 255, 0.1);
            backdrop-filter: blur(12px);
            border: 1px solid rgba(255, 255, 255, 0.2);
            border-radius: var(--radius-lg);
            padding: var(--spacing-lg);
            text-align: center;
        }
        .hero-stat-card .stat-number {
            font-size: 2.4rem;
            font-weight: 900;
            color: #fff;
            line-height: 1.2;
        }
        .hero-stat-card .stat-label {
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.75);
            font-weight: 500;
            margin-top: 4px;
        }
        .hero-stat-card .stat-trend {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            font-size: 0.8rem;
            color: #4ade80;
            font-weight: 600;
            margin-top: 6px;
        }

        /* ========== Flash Sale Bar ========== */
        .flash-bar {
            background: linear-gradient(135deg, #1a1f36 0%, #0d4fc5 100%);
            padding: var(--spacing-md) 0;
            position: relative;
            z-index: 1;
            overflow: hidden;
        }
        .flash-bar::after {
            content: '';
            position: absolute;
            top: -50%;
            right: -5%;
            width: 300px;
            height: 200%;
            background: rgba(255, 255, 255, 0.04);
            transform: rotate(12deg);
            pointer-events: none;
        }
        .flash-bar-inner {
            display: flex;
            align-items: center;
            gap: var(--spacing-lg);
            flex-wrap: wrap;
            position: relative;
            z-index: 1;
        }
        .flash-countdown {
            display: flex;
            align-items: center;
            gap: var(--spacing-sm);
            flex-shrink: 0;
        }
        .flash-countdown-label {
            font-size: 0.9rem;
            color: rgba(255, 255, 255, 0.85);
            font-weight: 600;
            white-space: nowrap;
        }
        .flash-timer {
            display: flex;
            gap: 6px;
        }
        .flash-timer-item {
            background: rgba(255, 255, 255, 0.12);
            border: 1px solid rgba(255, 255, 255, 0.2);
            border-radius: var(--radius-xs);
            padding: 4px 8px;
            font-weight: 800;
            color: #fff;
            font-size: 0.9rem;
            min-width: 32px;
            text-align: center;
        }
        .flash-timer-sep {
            color: rgba(255, 255, 255, 0.7);
            font-weight: 800;
            display: flex;
            align-items: center;
        }
        .flash-message {
            flex: 1;
            color: #fff;
            font-size: 0.92rem;
            font-weight: 500;
            min-width: 200px;
        }
        .flash-message .flash-highlight {
            color: var(--accent);
            font-weight: 700;
        }
        .flash-cta {
            flex-shrink: 0;
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 10px 22px;
            background: var(--accent);
            color: #fff;
            font-weight: 700;
            font-size: 0.9rem;
            border-radius: var(--radius-full);
            box-shadow: 0 4px 14px rgba(255, 138, 61, 0.4);
            transition: all var(--transition-fast);
        }
        .flash-cta:hover {
            background: #ff7a1a;
            box-shadow: 0 6px 20px rgba(255, 138, 61, 0.5);
            transform: translateY(-1px);
            color: #fff;
        }

        /* ========== Buttons ========== */
        .btn-primary {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 28px;
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
            color: #fff;
            font-weight: 700;
            font-size: 0.95rem;
            border-radius: var(--radius-full);
            box-shadow: 0 4px 14px rgba(26, 107, 255, 0.35);
            transition: all var(--transition-fast);
        }
        .btn-primary:hover {
            box-shadow: 0 6px 20px rgba(26, 107, 255, 0.45);
            transform: translateY(-1px);
            color: #fff;
        }
        .btn-primary:active {
            transform: translateY(0);
        }
        .btn-secondary {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 28px;
            background: var(--bg-white);
            color: var(--primary);
            font-weight: 700;
            font-size: 0.95rem;
            border-radius: var(--radius-full);
            border: 2px solid var(--primary);
            transition: all var(--transition-fast);
        }
        .btn-secondary:hover {
            background: var(--primary-soft);
            border-color: var(--primary-dark);
            color: var(--primary-dark);
            transform: translateY(-1px);
        }
        .btn-accent {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 28px;
            background: linear-gradient(135deg, var(--accent) 0%, #ff6b1a 100%);
            color: #fff;
            font-weight: 700;
            font-size: 0.95rem;
            border-radius: var(--radius-full);
            box-shadow: 0 4px 14px rgba(255, 138, 61, 0.35);
            transition: all var(--transition-fast);
        }
        .btn-accent:hover {
            box-shadow: 0 6px 20px rgba(255, 138, 61, 0.45);
            transform: translateY(-1px);
            color: #fff;
        }
        .btn-outline-light {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 10px 20px;
            background: transparent;
            color: #fff;
            font-weight: 600;
            font-size: 0.9rem;
            border-radius: var(--radius-full);
            border: 1.5px solid rgba(255, 255, 255, 0.4);
            transition: all var(--transition-fast);
        }
        .btn-outline-light:hover {
            border-color: #fff;
            background: rgba(255, 255, 255, 0.1);
            color: #fff;
        }

        /* ========== Sections ========== */
        .section {
            padding: var(--spacing-3xl) 0;
            position: relative;
        }
        .section-sm {
            padding: var(--spacing-2xl) 0;
        }
        .section-gray {
            background: var(--bg-gray);
        }
        .section-dark {
            background: var(--bg-dark);
            color: #fff;
        }
        .section-dark .section-subtitle {
            color: var(--text-light);
        }
        .section-dark .section-title {
            color: #fff;
        }
        .section-title {
            font-size: 1.9rem;
            font-weight: 900;
            color: var(--text-primary);
            letter-spacing: -0.5px;
            line-height: 1.3;
            margin: 0 0 var(--spacing-sm);
        }
        .section-subtitle {
            font-size: 1.05rem;
            color: var(--text-secondary);
            line-height: 1.7;
            margin: 0 0 var(--spacing-lg);
            max-width: 680px;
        }
        .section-head {
            display: flex;
            flex-wrap: wrap;
            align-items: flex-end;
            justify-content: space-between;
            gap: var(--spacing-lg);
            margin-bottom: var(--spacing-xl);
        }
        .section-head-left {
            flex: 1 1 500px;
        }
        .section-head-right {
            flex-shrink: 0;
        }
        .section-badge {
            display: inline-block;
            padding: 4px 14px;
            border-radius: var(--radius-full);
            font-size: 0.78rem;
            font-weight: 700;
            letter-spacing: 0.5px;
            background: var(--primary-soft);
            color: var(--primary);
            margin-bottom: var(--spacing-sm);
        }
        .section-badge.accent {
            background: var(--accent-light);
            color: var(--accent);
        }
        .section-badge.secondary {
            background: var(--secondary-light);
            color: var(--secondary);
        }

        /* ========== Cards ========== */
        .card {
            background: var(--bg-white);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: var(--spacing-lg);
            box-shadow: var(--shadow-sm);
            transition: all var(--transition-normal);
        }
        .card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-2px);
            border-color: #d5def0;
        }
        .card-icon {
            width: 48px;
            height: 48px;
            border-radius: var(--radius-md);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.3rem;
            font-weight: 900;
            color: #fff;
            margin-bottom: var(--spacing-md);
            flex-shrink: 0;
        }
        .card-icon.primary {
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
        }
        .card-icon.secondary {
            background: linear-gradient(135deg, var(--secondary) 0%, #0b7f74 100%);
        }
        .card-icon.accent {
            background: linear-gradient(135deg, var(--accent) 0%, #ff6b1a 100%);
        }
        .card-title {
            font-size: 1.1rem;
            font-weight: 800;
            color: var(--text-primary);
            margin: 0 0 var(--spacing-sm);
            line-height: 1.4;
        }
        .card-text {
            font-size: 0.92rem;
            color: var(--text-secondary);
            line-height: 1.7;
            margin: 0;
        }

        /* ========== Feature Grid ========== */
        .feature-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
            gap: var(--spacing-lg);
        }
        .feature-grid-3 {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: var(--spacing-lg);
        }
        .feature-grid-2 {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: var(--spacing-lg);
        }

        /* ========== Data Table Card ========== */
        .data-card {
            background: var(--bg-white);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-md);
            overflow: hidden;
            transition: all var(--transition-normal);
        }
        .data-card:hover {
            box-shadow: var(--shadow-lg);
        }
        .data-card-header {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: var(--spacing-md) var(--spacing-lg);
            border-bottom: 1px solid var(--border-light);
            background: var(--primary-soft);
            flex-wrap: wrap;
            gap: var(--spacing-sm);
        }
        .data-card-header .title-row {
            display: flex;
            align-items: center;
            gap: var(--spacing-sm);
        }
        .data-card-header .title-row .match-dot {
            width: 10px;
            height: 10px;
            border-radius: 50%;
            background: var(--secondary);
            animation: pulse-dot 2s infinite;
            flex-shrink: 0;
        }
        .data-card-header h3 {
            font-size: 1.05rem;
            font-weight: 800;
            color: var(--text-primary);
            margin: 0;
        }
        .data-card-header .badge-live {
            padding: 4px 10px;
            border-radius: var(--radius-full);
            background: #fee2e2;
            color: #dc2626;
            font-size: 0.75rem;
            font-weight: 700;
        }
        .data-card-body {
            padding: var(--spacing-lg);
        }
        .data-list {
            list-style: none;
            padding: 0;
            margin: 0;
            display: flex;
            flex-direction: column;
            gap: var(--spacing-md);
        }
        .data-list li {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: var(--spacing-md);
            padding: var(--spacing-sm) 0;
            border-bottom: 1px solid var(--border-light);
            flex-wrap: wrap;
        }
        .data-list li:last-child {
            border-bottom: none;
        }
        .data-item-left {
            display: flex;
            align-items: center;
            gap: var(--spacing-sm);
            flex: 1;
            min-width: 140px;
        }
        .data-item-label {
            font-size: 0.9rem;
            font-weight: 600;
            color: var(--text-primary);
        }
        .data-item-value {
            font-size: 0.9rem;
            font-weight: 700;
            color: var(--primary);
        }
        .data-item-tag {
            padding: 3px 10px;
            border-radius: var(--radius-full);
            font-size: 0.75rem;
            font-weight: 600;
        }
        .data-item-tag.up {
            background: var(--secondary-light);
            color: var(--secondary);
        }
        .data-item-tag.down {
            background: #fef2f2;
            color: #dc2626;
        }
        .data-item-tag.neutral {
            background: var(--bg-gray);
            color: var(--text-muted);
        }

        /* ========== Scenario Cards ========== */
        .scenario-card {
            background: var(--bg-white);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: var(--spacing-xl);
            box-shadow: var(--shadow-sm);
            transition: all var(--transition-normal);
            display: flex;
            flex-direction: column;
            gap: var(--spacing-md);
            position: relative;
            overflow: hidden;
        }
        .scenario-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 4px;
            background: linear-gradient(90deg, var(--primary), var(--secondary));
            opacity: 0;
            transition: opacity var(--transition-normal);
        }
        .scenario-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-2px);
        }
        .scenario-card:hover::before {
            opacity: 1;
        }
        .scenario-card .scenario-index {
            font-size: 2.2rem;
            font-weight: 900;
            color: var(--primary-light);
            line-height: 1;
            letter-spacing: -1px;
        }
        .scenario-card h3 {
            font-size: 1.15rem;
            font-weight: 800;
            color: var(--text-primary);
            margin: 0;
            line-height: 1.4;
        }
        .scenario-card p {
            font-size: 0.92rem;
            color: var(--text-secondary);
            line-height: 1.7;
            margin: 0;
            flex: 1;
        }

        /* ========== Process Steps ========== */
        .process-steps {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
            gap: var(--spacing-lg);
            counter-reset: step-counter;
        }
        .process-step {
            background: var(--bg-white);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: var(--spacing-lg);
            box-shadow: var(--shadow-sm);
            transition: all var(--transition-normal);
            text-align: center;
            position: relative;
        }
        .process-step:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-2px);
        }
        .process-step .step-number {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
            color: #fff;
            font-weight: 900;
            font-size: 1rem;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto var(--spacing-md);
            box-shadow: 0 4px 12px rgba(26, 107, 255, 0.3);
        }
        .process-step h4 {
            font-size: 1rem;
            font-weight: 800;
            color: var(--text-primary);
            margin: 0 0 var(--spacing-xs);
        }
        .process-step p {
            font-size: 0.85rem;
            color: var(--text-secondary);
            line-height: 1.6;
            margin: 0;
        }

        /* ========== FAQ ========== */
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: var(--spacing-sm);
        }
        .faq-item {
            background: var(--bg-white);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: all var(--transition-normal);
            box-shadow: var(--shadow-sm);
        }
        .faq-item:hover {
            border-color: #d5def0;
            box-shadow: var(--shadow-md);
        }
        .faq-item.active {
            border-color: var(--primary);
            box-shadow: 0 4px 16px rgba(26, 107, 255, 0.12);
        }
        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: var(--spacing-md);
            padding: var(--spacing-md) var(--spacing-lg);
            cursor: pointer;
            user-select: none;
            font-size: 1rem;
            font-weight: 700;
            color: var(--text-primary);
            background: none;
            width: 100%;
            text-align: left;
        }
        .faq-question:hover {
            color: var(--primary);
        }
        .faq-icon {
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background: var(--primary-soft);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.1rem;
            font-weight: 700;
            flex-shrink: 0;
            transition: all var(--transition-fast);
        }
        .faq-item.active .faq-icon {
            background: var(--primary);
            color: #fff;
            transform: rotate(45deg);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height var(--transition-slow);
        }
        .faq-item.active .faq-answer {
            max-height: 300px;
        }
        .faq-answer-inner {
            padding: 0 var(--spacing-lg) var(--spacing-lg);
            font-size: 0.92rem;
            color: var(--text-secondary);
            line-height: 1.7;
        }

        /* ========== CTA ========== */
        .cta-panel {
            background: linear-gradient(135deg, var(--bg-dark) 0%, var(--primary-dark) 100%);
            border-radius: var(--radius-xl);
            padding: var(--spacing-2xl) var(--spacing-xl);
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            gap: var(--spacing-xl);
            position: relative;
            overflow: hidden;
        }
        .cta-panel::before {
            content: '';
            position: absolute;
            top: -50%;
            right: -10%;
            width: 400px;
            height: 400px;
            background: rgba(255, 255, 255, 0.04);
            border-radius: 50%;
            pointer-events: none;
        }
        .cta-panel-content {
            flex: 1 1 400px;
            position: relative;
            z-index: 1;
        }
        .cta-panel-content h2 {
            font-size: 1.8rem;
            font-weight: 900;
            color: #fff;
            margin: 0 0 var(--spacing-sm);
            letter-spacing: -0.5px;
        }
        .cta-panel-content p {
            font-size: 1rem;
            color: rgba(255, 255, 255, 0.8);
            line-height: 1.7;
            margin: 0;
        }
        .cta-panel-actions {
            display: flex;
            gap: var(--spacing-md);
            flex-shrink: 0;
            position: relative;
            z-index: 1;
            flex-wrap: wrap;
        }

        /* ========== Image Block ========== */
        .image-block {
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-lg);
            position: relative;
        }
        .image-block img {
            width: 100%;
            object-fit: cover;
            transition: transform var(--transition-slow);
        }
        .image-block:hover img {
            transform: scale(1.03);
        }
        .image-block .image-overlay {
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            padding: var(--spacing-lg);
            background: linear-gradient(transparent, rgba(11, 28, 58, 0.8));
            color: #fff;
        }
        .image-block .image-overlay h4 {
            font-size: 1.05rem;
            font-weight: 800;
            margin: 0 0 4px;
        }
        .image-block .image-overlay p {
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.8);
            margin: 0;
        }

        /* ========== Two Column ========== */
        .two-col {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: var(--spacing-xl);
            align-items: center;
        }
        .two-col-reverse {
            direction: rtl;
        }
        .two-col-reverse > * {
            direction: ltr;
        }
        .two-col-text h3 {
            font-size: 1.4rem;
            font-weight: 900;
            color: var(--text-primary);
            margin: 0 0 var(--spacing-sm);
            line-height: 1.4;
        }
        .two-col-text p {
            font-size: 0.95rem;
            color: var(--text-secondary);
            line-height: 1.7;
            margin: 0 0 var(--spacing-md);
        }
        .two-col-text .check-list {
            list-style: none;
            padding: 0;
            margin: 0 0 var(--spacing-md);
            display: flex;
            flex-direction: column;
            gap: var(--spacing-sm);
        }
        .two-col-text .check-list li {
            display: flex;
            align-items: flex-start;
            gap: var(--spacing-sm);
            font-size: 0.9rem;
            color: var(--text-secondary);
        }
        .two-col-text .check-list li::before {
            content: '✓';
            color: var(--secondary);
            font-weight: 800;
            flex-shrink: 0;
            margin-top: 1px;
        }

        /* ========== Stats Row ========== */
        .stats-row {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
            gap: var(--spacing-lg);
        }
        .stat-block {
            text-align: center;
            padding: var(--spacing-lg);
            background: var(--bg-white);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-sm);
            transition: all var(--transition-normal);
        }
        .stat-block:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-2px);
        }
        .stat-block .stat-value {
            font-size: 2.2rem;
            font-weight: 900;
            color: var(--primary);
            line-height: 1.2;
        }
        .stat-block .stat-label {
            font-size: 0.9rem;
            color: var(--text-secondary);
            font-weight: 600;
            margin-top: 4px;
        }
        .stat-block .stat-desc {
            font-size: 0.78rem;
            color: var(--text-muted);
            margin-top: 2px;
        }

        /* ========== Table Styles ========== */
        .table-responsive {
            overflow-x: auto;
            -webkit-overflow-scrolling: touch;
        }
        .data-table {
            width: 100%;
            border-collapse: collapse;
            font-size: 0.9rem;
            min-width: 600px;
        }
        .data-table th {
            background: var(--primary-soft);
            color: var(--text-primary);
            font-weight: 700;
            padding: var(--spacing-md);
            text-align: left;
            border-bottom: 2px solid var(--border);
            white-space: nowrap;
        }
        .data-table td {
            padding: var(--spacing-md);
            border-bottom: 1px solid var(--border-light);
            color: var(--text-secondary);
        }
        .data-table tbody tr {
            transition: background var(--transition-fast);
        }
        .data-table tbody tr:hover {
            background: var(--primary-soft);
        }
        .data-table .rank {
            font-weight: 900;
            color: var(--primary);
            width: 50px;
            text-align: center;
            display: inline-block;
        }
        .data-table .rank.top1 {
            color: var(--accent);
        }
        .data-table .team-cell {
            display: flex;
            align-items: center;
            gap: var(--spacing-sm);
            font-weight: 600;
            color: var(--text-primary);
        }
        .data-table .team-emoji {
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background: var(--bg-gray);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 0.85rem;
            flex-shrink: 0;
        }

        /* ========== Footer ========== */
        .site-footer {
            background: var(--bg-dark);
            color: rgba(255, 255, 255, 0.75);
            padding: var(--spacing-3xl) 0 var(--spacing-lg);
            border-top: 1px solid rgba(255, 255, 255, 0.06);
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: var(--spacing-xl);
            margin-bottom: var(--spacing-2xl);
        }
        .footer-brand .footer-logo {
            display: flex;
            align-items: center;
            gap: var(--spacing-sm);
            font-size: 1.3rem;
            font-weight: 800;
            color: #fff;
            margin-bottom: var(--spacing-md);
        }
        .footer-brand .footer-logo .logo-icon {
            width: 36px;
            height: 36px;
            border-radius: var(--radius-sm);
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-weight: 900;
            font-size: 0.95rem;
        }
        .footer-brand p {
            font-size: 0.88rem;
            line-height: 1.7;
            color: rgba(255, 255, 255, 0.6);
            margin: 0 0 var(--spacing-md);
        }
        .footer-col h4 {
            font-size: 0.95rem;
            font-weight: 800;
            color: #fff;
            margin: 0 0 var(--spacing-md);
        }
        .footer-col ul {
            list-style: none;
            padding: 0;
            margin: 0;
            display: flex;
            flex-direction: column;
            gap: var(--spacing-sm);
        }
        .footer-col ul li a {
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.6);
            transition: color var(--transition-fast);
        }
        .footer-col ul li a:hover {
            color: var(--accent);
        }
        .footer-bottom {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            gap: var(--spacing-md);
            padding-top: var(--spacing-lg);
            border-top: 1px solid rgba(255, 255, 255, 0.08);
        }
        .footer-bottom p {
            font-size: 0.8rem;
            color: rgba(255, 255, 255, 0.5);
            margin: 0 0 4px;
        }
        .footer-links {
            display: flex;
            align-items: center;
            gap: var(--spacing-sm);
            font-size: 0.82rem;
            color: rgba(255, 255, 255, 0.5);
        }
        .footer-links a {
            color: rgba(255, 255, 255, 0.55);
            transition: color var(--transition-fast);
        }
        .footer-links a:hover {
            color: var(--accent);
        }

        /* ========== Responsive ========== */
        @media (max-width: 1024px) {
            .nav-links {
                display: none;
                position: absolute;
                top: 100%;
                left: 0;
                right: 0;
                background: var(--bg-white);
                border-bottom: 1px solid var(--border);
                box-shadow: var(--shadow-lg);
                flex-direction: column;
                padding: var(--spacing-md) var(--spacing-lg);
                gap: 4px;
                z-index: 999;
            }
            .nav-links.open {
                display: flex;
            }
            .nav-links a {
                width: 100%;
                padding: 12px 14px;
                font-size: 0.95rem;
            }
            .nav-toggle {
                display: flex;
            }
            .nav-status {
                display: none;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: var(--spacing-lg);
            }
            .two-col {
                grid-template-columns: 1fr;
                gap: var(--spacing-lg);
            }
            .feature-grid-3 {
                grid-template-columns: 1fr 1fr;
            }
            .page-hero h1 {
                font-size: 2rem;
            }
            .page-hero-side {
                flex: 0 0 100%;
                flex-direction: row;
                flex-wrap: wrap;
            }
            .hero-stat-card {
                flex: 1 1 160px;
            }
        }
        @media (max-width: 768px) {
            .nav-actions .btn-primary-nav {
                display: none;
            }
            .nav-toolbar {
                flex-wrap: wrap;
            }
            .flash-bar-inner {
                flex-direction: column;
                align-items: flex-start;
                gap: var(--spacing-md);
            }
            .page-hero {
                padding: var(--spacing-2xl) 0 var(--spacing-xl);
            }
            .page-hero h1 {
                font-size: 1.6rem;
            }
            .page-hero-subtitle {
                font-size: 1rem;
            }
            .feature-grid-3 {
                grid-template-columns: 1fr;
            }
            .feature-grid-2 {
                grid-template-columns: 1fr;
            }
            .process-steps {
                grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
            }
            .section-title {
                font-size: 1.5rem;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: var(--spacing-lg);
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
            .stats-row {
                grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
            }
            .cta-panel {
                padding: var(--spacing-xl);
                flex-direction: column;
                text-align: center;
            }
            .cta-panel-actions {
                justify-content: center;
            }
        }
        @media (max-width: 520px) {
            .nav-logo a {
                font-size: 1.1rem;
            }
            .nav-logo .logo-icon {
                width: 34px;
                height: 34px;
                font-size: 0.9rem;
            }
            .page-hero h1 {
                font-size: 1.35rem;
            }
            .page-hero-subtitle {
                font-size: 0.92rem;
            }
            .section {
                padding: var(--spacing-2xl) 0;
            }
            .section-title {
                font-size: 1.3rem;
            }
            .btn-primary, .btn-secondary, .btn-accent {
                padding: 10px 20px;
                font-size: 0.88rem;
                width: 100%;
                justify-content: center;
            }
            .flash-cta {
                width: 100%;
                justify-content: center;
            }
            .hero-stat-card .stat-number {
                font-size: 1.8rem;
            }
            .data-card-header {
                padding: var(--spacing-sm) var(--spacing-md);
            }
            .data-card-body {
                padding: var(--spacing-md);
            }
            .faq-question {
                padding: var(--spacing-sm) var(--spacing-md);
                font-size: 0.92rem;
            }
            .faq-answer-inner {
                padding: 0 var(--spacing-md) var(--spacing-md);
            }
        }

        /* ========== Category-specific styles ========== */
        .data-highlight-row {
            display: grid;
            grid-template-columns: 1.2fr 0.8fr;
            gap: var(--spacing-lg);
            align-items: stretch;
        }
        .data-highlight-row .data-card {
            height: 100%;
            display: flex;
            flex-direction: column;
        }
        .data-highlight-row .data-card .data-card-body {
            flex: 1;
        }
        @media (max-width: 768px) {
            .data-highlight-row {
                grid-template-columns: 1fr;
            }
        }

.two-col-media img { border-radius: var(--radius-lg); box-shadow: var(--shadow-lg); width: 100%; height: 100%; object-fit: cover; }
                    .brand-intro-grid { display: grid; grid-template-columns: 1fr 1fr; gap: var(--spacing-2xl); align-items: center; }
                    .brand-intro-image img { border-radius: var(--radius-lg); width: 100%; height: 380px; object-fit: cover; box-shadow: var(--shadow-xl); }
                    .brand-intro-text h2 { color: #fff; font-size: 2rem; margin: var(--spacing-sm) 0 var(--spacing-md); }
                    .brand-intro-text p { color: rgba(255,255,255,0.7); margin-bottom: var(--spacing-lg); }
                    .brand-stats-row { display: flex; gap: var(--spacing-lg); flex-wrap: wrap; }
                    .brand-stat strong { display: block; font-size: 2rem; color: var(--accent); }
                    .brand-stat span { font-size: 0.85rem; color: rgba(255,255,255,0.6); }
                    .testimonial-card { background: var(--bg-white); border: 1px solid var(--border); border-radius: var(--radius-lg); padding: var(--spacing-lg); box-shadow: var(--shadow-sm); transition: var(--transition-normal); }
                    .testimonial-card:hover { box-shadow: var(--shadow-md); transform: translateY(-2px); }
                    .testimonial-quote { font-size: 0.95rem; line-height: 1.7; color: var(--text-secondary); margin-bottom: var(--spacing-md); }
                    .testimonial-author { font-size: 0.88rem; font-weight: 700; color: var(--primary-dark); }
                    .faq-list { max-width: 800px; margin: 0 auto; display: flex; flex-direction: column; gap: var(--spacing-sm); }
                    .faq-item { background: var(--bg-white); border: 1px solid var(--border); border-radius: var(--radius-md); overflow: hidden; transition: var(--transition-normal); }
                    .faq-item[open] { box-shadow: var(--shadow-sm); }
                    .faq-question { display: flex; align-items: center; justify-content: space-between; gap: var(--spacing-md); padding: var(--spacing-lg); font-weight: 700; color: var(--text-primary); cursor: pointer; list-style: none; }
                    .faq-question::-webkit-details-marker { display: none; }
                    .faq-question::after { content: '+'; font-size: 1.5rem; color: var(--primary); transition: transform var(--transition-normal); }
                    .faq-item[open] .faq-question::after { transform: rotate(45deg); }
                    .faq-answer-inner { padding: 0 var(--spacing-lg) var(--spacing-lg); color: var(--text-secondary); line-height: 1.7; }
                    .final-cta { background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%); }
                    .cta-panel { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: var(--spacing-lg); padding: var(--spacing-2xl); background: rgba(255,255,255,0.05); border: 1px solid rgba(255,255,255,0.1); border-radius: var(--radius-xl); box-shadow: var(--shadow-lg); }
                    .cta-panel h2 { color: #fff; font-size: 2rem; margin-bottom: var(--spacing-sm); }
                    .cta-panel p { color: rgba(255,255,255,0.8); margin: 0; }
                    .cta-panel-actions { display: flex; gap: var(--spacing-md); flex-wrap: wrap; }
                    .btn-light { display: inline-flex; align-items: center; gap: var(--spacing-sm); padding: 12px 24px; border-radius: var(--radius-full); background: #fff; color: var(--primary-dark); font-weight: 700; transition: var(--transition-normal); }
                    .btn-light:hover { background: rgba(255,255,255,0.9); transform: translateY(-2px); box-shadow: var(--shadow-md); }
                    .btn-accent { display: inline-flex; align-items: center; gap: var(--spacing-sm); padding: 12px 24px; border-radius: var(--radius-full); background: var(--accent); color: #fff; font-weight: 700; transition: var(--transition-normal); }
                    .btn-accent:hover { background: #e0782e; transform: translateY(-2px); box-shadow: var(--shadow-md); }
                    @media (max-width: 768px) {
                        .brand-intro-grid { grid-template-columns: 1fr; }
                        .brand-intro-image img { height: 240px; }
                        .cta-panel { flex-direction: column; text-align: center; }
                        .cta-panel-actions { justify-content: center; }
                    }

/* roulang page: category4 */
:root {
            --primary: #1a6bff;
            --primary-dark: #0d4fc5;
            --primary-light: #e8f0ff;
            --primary-soft: #f2f7ff;
            --secondary: #0f9d8f;
            --secondary-light: #e8f7f5;
            --accent: #ff8a3d;
            --accent-light: #fff4ec;
            --bg-white: #ffffff;
            --bg-gray: #f6f8fb;
            --bg-dark: #0b1c3a;
            --bg-dark-light: #14294f;
            --text-primary: #1a1f36;
            --text-secondary: #4a5578;
            --text-muted: #7a86a8;
            --text-light: #9aa5c4;
            --border: #e8ecf4;
            --border-light: #f0f3f9;
            --radius-xs: 6px;
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 16px;
            --radius-xl: 20px;
            --radius-full: 999px;
            --shadow-sm: 0 2px 8px rgba(10, 25, 50, 0.05);
            --shadow-md: 0 4px 16px rgba(10, 25, 50, 0.08);
            --shadow-lg: 0 8px 32px rgba(10, 25, 50, 0.12);
            --shadow-xl: 0 16px 48px rgba(10, 25, 50, 0.16);
            --font-family: 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', Arial, sans-serif;
            --container-max: 1200px;
            --container-wide: 1320px;
            --transition-fast: 0.18s ease;
            --transition-normal: 0.28s ease;
            --transition-slow: 0.4s ease;
            --spacing-xs: 4px;
            --spacing-sm: 8px;
            --spacing-md: 16px;
            --spacing-lg: 24px;
            --spacing-xl: 32px;
            --spacing-2xl: 48px;
            --spacing-3xl: 64px;
            --spacing-4xl: 80px;
        }

        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }

        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        body {
            font-family: var(--font-family);
            font-size: 16px;
            line-height: 1.7;
            color: var(--text-primary);
            background-color: var(--bg-white);
            overflow-x: hidden;
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
        }

        a {
            text-decoration: none;
            color: inherit;
            transition: color var(--transition-fast);
        }

        button {
            font-family: inherit;
            cursor: pointer;
            border: none;
            background: none;
            transition: all var(--transition-fast);
        }

        input,
        textarea,
        select {
            font-family: inherit;
            font-size: inherit;
            outline: none;
            border: 1px solid var(--border);
            border-radius: var(--radius-sm);
            transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
        }

        input:focus,
        textarea:focus,
        select:focus {
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(26, 107, 255, 0.12);
        }

        .container {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 var(--spacing-lg);
        }

        .container-wide {
            max-width: var(--container-wide);
            margin: 0 auto;
            padding: 0 var(--spacing-lg);
        }

        /* ========== Header / Nav ========== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: rgba(255, 255, 255, 0.96);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid var(--border);
            box-shadow: var(--shadow-sm);
            transition: all var(--transition-normal);
        }

        .site-header.scrolled {
            box-shadow: var(--shadow-md);
            border-bottom-color: var(--border);
        }

        .nav-toolbar {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: var(--spacing-md);
            padding: var(--spacing-md) 0;
        }

        .nav-logo {
            display: flex;
            align-items: center;
            gap: var(--spacing-sm);
            flex-shrink: 0;
        }

        .nav-logo a {
            display: flex;
            align-items: center;
            gap: var(--spacing-sm);
            font-weight: 800;
            font-size: 1.35rem;
            color: var(--primary-dark);
            letter-spacing: -0.5px;
        }

        .nav-logo .logo-icon {
            width: 40px;
            height: 40px;
            border-radius: var(--radius-md);
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-weight: 900;
            font-size: 1.1rem;
            flex-shrink: 0;
            box-shadow: 0 4px 12px rgba(26, 107, 255, 0.3);
        }

        .nav-logo .logo-icon span {
            letter-spacing: -1px;
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 2px;
            flex: 1;
            justify-content: center;
            flex-wrap: wrap;
        }

        .nav-links a {
            display: flex;
            align-items: center;
            gap: 4px;
            padding: 8px 14px;
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--text-secondary);
            border-radius: var(--radius-sm);
            white-space: nowrap;
            transition: all var(--transition-fast);
            position: relative;
        }

        .nav-links a:hover {
            color: var(--primary);
            background: var(--primary-soft);
        }

        .nav-links a.active {
            color: var(--primary);
            background: var(--primary-light);
            font-weight: 600;
        }

        .nav-links a.active::after {
            content: '';
            position: absolute;
            bottom: -1px;
            left: 50%;
            transform: translateX(-50%);
            width: 20px;
            height: 3px;
            border-radius: var(--radius-full);
            background: var(--primary);
        }

        .nav-actions {
            display: flex;
            align-items: center;
            gap: var(--spacing-md);
            flex-shrink: 0;
        }

        .nav-status {
            display: flex;
            align-items: center;
            gap: 6px;
            font-size: 0.8rem;
            color: var(--text-muted);
            font-weight: 500;
        }

        .nav-status .dot {
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: var(--secondary);
            animation: pulse-dot 2s ease-in-out infinite;
        }

        @keyframes pulse-dot {
            0%, 100% { opacity: 1; }
            50% { opacity: 0.4; }
        }

        .nav-notify {
            position: relative;
            width: 38px;
            height: 38px;
            border-radius: var(--radius-sm);
            background: var(--bg-gray);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--text-secondary);
            transition: all var(--transition-fast);
        }

        .nav-notify:hover {
            background: var(--primary-light);
            color: var(--primary);
        }

        .nav-notify .badge-dot {
            position: absolute;
            top: 8px;
            right: 8px;
            width: 6px;
            height: 6px;
            border-radius: 50%;
            background: var(--accent);
        }

        .btn-primary-nav {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 10px 20px;
            background: var(--primary);
            color: #fff;
            font-size: 0.9rem;
            font-weight: 600;
            border-radius: var(--radius-sm);
            white-space: nowrap;
            transition: all var(--transition-fast);
            box-shadow: 0 4px 12px rgba(26, 107, 255, 0.25);
        }

        .btn-primary-nav:hover {
            background: var(--primary-dark);
            box-shadow: 0 6px 20px rgba(26, 107, 255, 0.35);
            transform: translateY(-1px);
            color: #fff;
        }

        .btn-primary-nav:active {
            transform: translateY(0);
            box-shadow: 0 2px 8px rgba(26, 107, 255, 0.2);
        }

        .nav-toggle {
            display: none;
            flex-direction: column;
            gap: 4px;
            padding: 10px;
            background: var(--bg-gray);
            border-radius: var(--radius-sm);
            transition: all var(--transition-fast);
        }

        .nav-toggle:hover {
            background: var(--primary-light);
        }

        .nav-toggle .bar {
            width: 20px;
            height: 2px;
            background: var(--text-primary);
            border-radius: var(--radius-full);
            transition: all var(--transition-fast);
        }

        /* ========== Buttons ========== */
        .btn-primary {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 14px 28px;
            background: var(--primary);
            color: #fff;
            font-size: 1rem;
            font-weight: 600;
            border-radius: var(--radius-sm);
            transition: all var(--transition-fast);
            box-shadow: 0 4px 16px rgba(26, 107, 255, 0.28);
            border: none;
        }

        .btn-primary:hover {
            background: var(--primary-dark);
            box-shadow: 0 8px 24px rgba(26, 107, 255, 0.4);
            transform: translateY(-2px);
            color: #fff;
        }

        .btn-primary:active {
            transform: translateY(0);
            box-shadow: 0 2px 8px rgba(26, 107, 255, 0.2);
        }

        .btn-secondary {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 14px 28px;
            background: var(--bg-white);
            color: var(--primary);
            font-size: 1rem;
            font-weight: 600;
            border-radius: var(--radius-sm);
            border: 1.5px solid var(--primary);
            transition: all var(--transition-fast);
        }

        .btn-secondary:hover {
            background: var(--primary-light);
            border-color: var(--primary-dark);
            color: var(--primary-dark);
            transform: translateY(-2px);
            box-shadow: var(--shadow-md);
        }

        .btn-secondary:active {
            transform: translateY(0);
            box-shadow: var(--shadow-sm);
        }

        .btn-accent {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 14px 28px;
            background: var(--accent);
            color: #fff;
            font-size: 1rem;
            font-weight: 600;
            border-radius: var(--radius-sm);
            transition: all var(--transition-fast);
            box-shadow: 0 4px 16px rgba(255, 138, 61, 0.3);
            border: none;
        }

        .btn-accent:hover {
            background: #e6772a;
            box-shadow: 0 8px 24px rgba(255, 138, 61, 0.4);
            transform: translateY(-2px);
            color: #fff;
        }

        /* ========== Hero Section ========== */
        .hero-betting {
            background: linear-gradient(165deg, var(--bg-white) 0%, var(--primary-soft) 40%, var(--primary-light) 100%);
            padding: var(--spacing-3xl) 0 var(--spacing-2xl);
            position: relative;
            overflow: hidden;
        }

        .hero-betting::before {
            content: '';
            position: absolute;
            top: -200px;
            right: -150px;
            width: 500px;
            height: 500px;
            background: radial-gradient(circle, rgba(26, 107, 255, 0.12) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .hero-betting::after {
            content: '';
            position: absolute;
            bottom: -100px;
            left: -100px;
            width: 350px;
            height: 350px;
            background: radial-gradient(circle, rgba(15, 157, 143, 0.1) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .hero-betting .container {
            position: relative;
            z-index: 2;
        }

        .hero-grid {
            display: grid;
            grid-template-columns: 1fr 1.1fr;
            gap: var(--spacing-3xl);
            align-items: center;
        }

        .hero-content {
            display: flex;
            flex-direction: column;
            gap: var(--spacing-lg);
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 8px 16px;
            background: var(--bg-white);
            border: 1px solid var(--border);
            border-radius: var(--radius-full);
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--primary);
            box-shadow: var(--shadow-sm);
            width: fit-content;
        }

        .hero-badge .badge-icon {
            width: 20px;
            height: 20px;
            border-radius: 50%;
            background: var(--primary-light);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 0.7rem;
        }

        .hero-title {
            font-size: 2.8rem;
            font-weight: 800;
            line-height: 1.25;
            color: var(--text-primary);
            letter-spacing: -1px;
        }

        .hero-title .highlight {
            color: var(--primary);
            position: relative;
        }

        .hero-title .highlight::after {
            content: '';
            position: absolute;
            bottom: 4px;
            left: 0;
            width: 100%;
            height: 8px;
            background: var(--primary-light);
            border-radius: var(--radius-full);
            z-index: -1;
        }

        .hero-subtitle {
            font-size: 1.15rem;
            color: var(--text-secondary);
            line-height: 1.8;
        }

        .hero-actions {
            display: flex;
            gap: var(--spacing-md);
            flex-wrap: wrap;
        }

        .hero-stats-row {
            display: flex;
            gap: var(--spacing-xl);
            margin-top: var(--spacing-md);
            flex-wrap: wrap;
        }

        .hero-stat-item {
            display: flex;
            flex-direction: column;
            gap: 2px;
        }

        .hero-stat-value {
            font-size: 1.6rem;
            font-weight: 800;
            color: var(--primary-dark);
            line-height: 1.2;
        }

        .hero-stat-label {
            font-size: 0.85rem;
            color: var(--text-muted);
            font-weight: 500;
        }

        .hero-panel {
            background: var(--bg-white);
            border-radius: var(--radius-xl);
            box-shadow: var(--shadow-xl);
            padding: var(--spacing-xl);
            border: 1px solid var(--border-light);
            position: relative;
        }

        .hero-panel::before {
            content: '';
            position: absolute;
            top: 0;
            left: var(--spacing-xl);
            right: var(--spacing-xl);
            height: 4px;
            background: linear-gradient(90deg, var(--primary), var(--secondary));
            border-radius: 0 0 var(--radius-sm) var(--radius-sm);
        }

        .hero-panel-title {
            font-size: 1.15rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: var(--spacing-md);
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .hero-panel-title .panel-dot {
            width: 10px;
            height: 10px;
            border-radius: 50%;
            background: var(--secondary);
        }

        .hero-panel-list {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: var(--spacing-md);
        }

        .hero-panel-list li {
            display: flex;
            align-items: flex-start;
            gap: var(--spacing-md);
            padding: var(--spacing-md);
            background: var(--bg-gray);
            border-radius: var(--radius-md);
            transition: all var(--transition-fast);
        }

        .hero-panel-list li:hover {
            background: var(--primary-soft);
            transform: translateX(4px);
        }

        .hero-panel-list .list-icon {
            width: 36px;
            height: 36px;
            border-radius: var(--radius-sm);
            background: var(--primary-light);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 0.9rem;
            color: var(--primary);
            flex-shrink: 0;
        }

        .hero-panel-list .list-text {
            font-size: 0.9rem;
            color: var(--text-secondary);
            line-height: 1.6;
        }

        .hero-panel-list .list-text strong {
            color: var(--text-primary);
            font-weight: 600;
        }

        /* ========== Section Common ========== */
        .section {
            padding: var(--spacing-3xl) 0;
        }

        .section-alt {
            background: var(--bg-gray);
        }

        .section-dark {
            background: var(--bg-dark);
            color: #fff;
        }

        .section-header {
            margin-bottom: var(--spacing-2xl);
            display: flex;
            flex-direction: column;
            gap: var(--spacing-sm);
        }

        .section-header.center {
            text-align: center;
            align-items: center;
        }

        .section-label {
            font-size: 0.85rem;
            font-weight: 700;
            color: var(--primary);
            text-transform: uppercase;
            letter-spacing: 1.5px;
        }

        .section-title {
            font-size: 2rem;
            font-weight: 800;
            color: var(--text-primary);
            letter-spacing: -0.5px;
            line-height: 1.3;
        }

        .section-dark .section-title {
            color: #fff;
        }

        .section-subtitle {
            font-size: 1.05rem;
            color: var(--text-muted);
            line-height: 1.8;
            max-width: 680px;
        }

        .section-dark .section-subtitle {
            color: var(--text-light);
        }

        /* ========== Feature Grid ========== */
        .feature-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: var(--spacing-lg);
        }

        .feature-card {
            background: var(--bg-white);
            border-radius: var(--radius-lg);
            padding: var(--spacing-xl);
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-light);
            transition: all var(--transition-normal);
            display: flex;
            flex-direction: column;
            gap: var(--spacing-md);
        }

        .feature-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-4px);
            border-color: var(--primary-light);
        }

        .feature-card .card-icon {
            width: 48px;
            height: 48px;
            border-radius: var(--radius-md);
            background: var(--primary-light);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.3rem;
            color: var(--primary);
            flex-shrink: 0;
        }

        .feature-card .card-icon.secondary {
            background: var(--secondary-light);
            color: var(--secondary);
        }

        .feature-card .card-icon.accent {
            background: var(--accent-light);
            color: var(--accent);
        }

        .feature-card h3 {
            font-size: 1.15rem;
            font-weight: 700;
            color: var(--text-primary);
        }

        .feature-card p {
            font-size: 0.95rem;
            color: var(--text-secondary);
            line-height: 1.7;
        }

        .feature-card .card-link {
            font-size: 0.9rem;
            font-weight: 600;
            color: var(--primary);
            display: inline-flex;
            align-items: center;
            gap: 4px;
            margin-top: auto;
        }

        .feature-card .card-link:hover {
            color: var(--primary-dark);
        }

        /* ========== Data Panel ========== */
        .data-panel {
            background: var(--bg-white);
            border-radius: var(--radius-xl);
            box-shadow: var(--shadow-lg);
            padding: var(--spacing-2xl);
            border: 1px solid var(--border-light);
        }

        .data-panel-header {
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-bottom: var(--spacing-xl);
            flex-wrap: wrap;
            gap: var(--spacing-md);
        }

        .data-panel-title {
            font-size: 1.3rem;
            font-weight: 700;
            color: var(--text-primary);
        }

        .data-panel-badge {
            padding: 6px 14px;
            background: var(--secondary-light);
            color: var(--secondary);
            border-radius: var(--radius-full);
            font-size: 0.8rem;
            font-weight: 600;
        }

        .data-table-wrap {
            overflow-x: auto;
            -webkit-overflow-scrolling: touch;
        }

        .data-table {
            width: 100%;
            border-collapse: collapse;
            min-width: 600px;
        }

        .data-table th {
            text-align: left;
            padding: 12px 16px;
            font-size: 0.85rem;
            font-weight: 700;
            color: var(--text-muted);
            border-bottom: 2px solid var(--border);
            white-space: nowrap;
        }

        .data-table td {
            padding: 12px 16px;
            font-size: 0.9rem;
            color: var(--text-secondary);
            border-bottom: 1px solid var(--border-light);
            white-space: nowrap;
        }

        .data-table tr:hover td {
            background: var(--primary-soft);
        }

        .data-table .status-up {
            color: #e63946;
            font-weight: 600;
        }

        .data-table .status-down {
            color: #2d8f4e;
            font-weight: 600;
        }

        .data-table .status-flat {
            color: var(--text-muted);
        }

        /* ========== Scenario Cards ========== */
        .scenario-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: var(--spacing-lg);
        }

        .scenario-card {
            background: var(--bg-white);
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-light);
            transition: all var(--transition-normal);
            display: flex;
            flex-direction: column;
        }

        .scenario-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-4px);
        }

        .scenario-card .card-img-wrap {
            position: relative;
            overflow: hidden;
            aspect-ratio: 16/9;
        }

        .scenario-card .card-img-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform var(--transition-slow);
        }

        .scenario-card:hover .card-img-wrap img {
            transform: scale(1.05);
        }

        .scenario-card .card-overlay {
            position: absolute;
            top: 12px;
            left: 12px;
            padding: 6px 14px;
            background: rgba(255, 255, 255, 0.92);
            border-radius: var(--radius-full);
            font-size: 0.75rem;
            font-weight: 700;
            color: var(--primary);
            backdrop-filter: blur(8px);
        }

        .scenario-card .card-body {
            padding: var(--spacing-lg);
            display: flex;
            flex-direction: column;
            gap: var(--spacing-sm);
            flex: 1;
        }

        .scenario-card .card-body h3 {
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--text-primary);
        }

        .scenario-card .card-body p {
            font-size: 0.9rem;
            color: var(--text-secondary);
            line-height: 1.7;
        }

        .scenario-card .card-meta {
            display: flex;
            gap: var(--spacing-md);
            font-size: 0.8rem;
            color: var(--text-muted);
            margin-top: auto;
            padding-top: var(--spacing-sm);
            border-top: 1px solid var(--border-light);
        }

        /* ========== Pricing ========== */
        .pricing-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: var(--spacing-lg);
            align-items: stretch;
        }

        .pricing-card {
            background: var(--bg-white);
            border-radius: var(--radius-lg);
            padding: var(--spacing-xl);
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-light);
            display: flex;
            flex-direction: column;
            gap: var(--spacing-md);
            transition: all var(--transition-normal);
            position: relative;
        }

        .pricing-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-4px);
        }

        .pricing-card.featured {
            border: 2px solid var(--primary);
            box-shadow: var(--shadow-lg);
        }

        .pricing-card.featured::before {
            content: '推荐方案';
            position: absolute;
            top: -12px;
            right: var(--spacing-lg);
            padding: 4px 14px;
            background: var(--primary);
            color: #fff;
            font-size: 0.75rem;
            font-weight: 700;
            border-radius: var(--radius-full);
        }

        .pricing-card .plan-name {
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--text-primary);
        }

        .pricing-card .plan-price {
            font-size: 2.2rem;
            font-weight: 800;
            color: var(--primary-dark);
        }

        .pricing-card .plan-price span {
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--text-muted);
        }

        .pricing-card .plan-features {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: var(--spacing-sm);
            flex: 1;
        }

        .pricing-card .plan-features li {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 0.9rem;
            color: var(--text-secondary);
        }

        .pricing-card .plan-features li::before {
            content: '✓';
            color: var(--secondary);
            font-weight: 700;
        }

        /* ========== FAQ ========== */
        .faq-list {
            display: flex;
            flex-direction: column;
            gap: var(--spacing-md);
            max-width: 800px;
            margin: 0 auto;
        }

        .faq-item {
            background: var(--bg-white);
            border-radius: var(--radius-md);
            border: 1px solid var(--border-light);
            overflow: hidden;
            transition: all var(--transition-normal);
        }

        .faq-item:hover {
            border-color: var(--primary-light);
            box-shadow: var(--shadow-sm);
        }

        .faq-item summary {
            padding: var(--spacing-lg);
            cursor: pointer;
            font-weight: 600;
            font-size: 1rem;
            color: var(--text-primary);
            display: flex;
            align-items: center;
            justify-content: space-between;
            list-style: none;
            gap: var(--spacing-md);
        }

        .faq-item summary::-webkit-details-marker {
            display: none;
        }

        .faq-item summary .faq-icon {
            font-size: 1.2rem;
            color: var(--primary);
            transition: transform var(--transition-fast);
            flex-shrink: 0;
        }

        .faq-item[open] summary .faq-icon {
            transform: rotate(45deg);
        }

        .faq-item .faq-answer {
            padding: 0 var(--spacing-lg) var(--spacing-lg);
            font-size: 0.95rem;
            color: var(--text-secondary);
            line-height: 1.8;
        }

        /* ========== CTA Section ========== */
        .cta-section {
            background: linear-gradient(135deg, var(--bg-dark) 0%, var(--bg-dark-light) 100%);
            padding: var(--spacing-4xl) 0;
            position: relative;
            overflow: hidden;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            top: -50%;
            right: -20%;
            width: 600px;
            height: 600px;
            background: radial-gradient(circle, rgba(26, 107, 255, 0.2) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .cta-content {
            position: relative;
            z-index: 2;
            text-align: center;
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: var(--spacing-lg);
        }

        .cta-content h2 {
            font-size: 2.2rem;
            font-weight: 800;
            color: #fff;
            letter-spacing: -0.5px;
        }

        .cta-content p {
            font-size: 1.05rem;
            color: var(--text-light);
            max-width: 600px;
            line-height: 1.8;
        }

        .cta-actions {
            display: flex;
            gap: var(--spacing-md);
            flex-wrap: wrap;
            justify-content: center;
        }

        /* ========== Footer ========== */
        .site-footer {
            background: var(--bg-dark);
            color: var(--text-light);
            padding: var(--spacing-3xl) 0 var(--spacing-lg);
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: var(--spacing-2xl);
            margin-bottom: var(--spacing-2xl);
        }

        .footer-brand {
            display: flex;
            flex-direction: column;
            gap: var(--spacing-md);
        }

        .footer-logo {
            display: flex;
            align-items: center;
            gap: var(--spacing-sm);
            font-weight: 800;
            font-size: 1.3rem;
            color: #fff;
        }

        .footer-logo .logo-icon {
            width: 36px;
            height: 36px;
            border-radius: var(--radius-sm);
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-weight: 900;
            font-size: 0.95rem;
        }

        .footer-brand p {
            font-size: 0.9rem;
            line-height: 1.8;
            color: var(--text-light);
        }

        .footer-col h4 {
            font-size: 0.95rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: var(--spacing-md);
        }

        .footer-col ul {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: var(--spacing-sm);
        }

        .footer-col ul a {
            font-size: 0.88rem;
            color: var(--text-light);
            transition: color var(--transition-fast);
        }

        .footer-col ul a:hover {
            color: var(--primary);
        }

        .footer-bottom {
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: var(--spacing-md);
            padding-top: var(--spacing-lg);
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            font-size: 0.85rem;
        }

        .footer-bottom p {
            margin-bottom: 4px;
        }

        .footer-links {
            display: flex;
            gap: var(--spacing-sm);
            align-items: center;
        }

        .footer-links a {
            color: var(--text-light);
            font-size: 0.85rem;
            transition: color var(--transition-fast);
        }

        .footer-links a:hover {
            color: var(--primary);
        }

        /* ========== Mobile Nav ========== */
        @media (max-width: 1024px) {
            .nav-links {
                gap: 0;
            }
            .nav-links a {
                padding: 6px 10px;
                font-size: 0.82rem;
            }
            .nav-status {
                display: none;
            }
            .hero-grid {
                grid-template-columns: 1fr;
                gap: var(--spacing-xl);
            }
            .hero-title {
                font-size: 2.2rem;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: var(--spacing-xl);
            }
        }

        @media (max-width: 768px) {
            .nav-toggle {
                display: flex;
            }
            .nav-links {
                display: none;
                position: absolute;
                top: 100%;
                left: 0;
                right: 0;
                background: var(--bg-white);
                flex-direction: column;
                padding: var(--spacing-lg);
                gap: 4px;
                box-shadow: var(--shadow-lg);
                border-bottom: 1px solid var(--border);
            }
            .nav-links.open {
                display: flex;
            }
            .nav-links a {
                width: 100%;
                padding: 12px 16px;
                font-size: 0.9rem;
                justify-content: flex-start;
            }
            .nav-links a.active::after {
                display: none;
            }
            .btn-primary-nav {
                padding: 8px 16px;
                font-size: 0.82rem;
            }
            .hero-title {
                font-size: 1.8rem;
            }
            .hero-subtitle {
                font-size: 1rem;
            }
            .section-title {
                font-size: 1.5rem;
            }
            .hero-stats-row {
                gap: var(--spacing-lg);
            }
            .hero-stat-value {
                font-size: 1.3rem;
            }
            .data-panel {
                padding: var(--spacing-lg);
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: var(--spacing-lg);
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
            .cta-content h2 {
                font-size: 1.6rem;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding: 0 var(--spacing-md);
            }
            .hero-betting {
                padding: var(--spacing-2xl) 0 var(--spacing-xl);
            }
            .hero-title {
                font-size: 1.5rem;
            }
            .hero-actions {
                flex-direction: column;
            }
            .btn-primary, .btn-secondary, .btn-accent {
                justify-content: center;
                padding: 12px 20px;
                font-size: 0.9rem;
            }
            .feature-grid {
                grid-template-columns: 1fr;
            }
            .scenario-grid {
                grid-template-columns: 1fr;
            }
            .pricing-grid {
                grid-template-columns: 1fr;
            }
            .hero-panel {
                padding: var(--spacing-lg);
            }
            .section {
                padding: var(--spacing-2xl) 0;
            }
        }

/* roulang page: category5 */
:root {
            --primary: #1a6bff;
            --primary-dark: #0d4fc5;
            --primary-light: #e8f0ff;
            --primary-soft: #f2f7ff;
            --secondary: #0f9d8f;
            --secondary-light: #e8f7f5;
            --accent: #ff8a3d;
            --accent-light: #fff4ec;
            --bg-white: #ffffff;
            --bg-gray: #f6f8fb;
            --bg-dark: #0b1c3a;
            --bg-dark-light: #14294f;
            --text-primary: #1a1f36;
            --text-secondary: #4a5578;
            --text-muted: #7a86a8;
            --text-light: #9aa5c4;
            --border: #e8ecf4;
            --border-light: #f0f3f9;
            --radius-xs: 6px;
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 16px;
            --radius-xl: 20px;
            --radius-full: 999px;
            --shadow-sm: 0 2px 8px rgba(10, 25, 50, 0.05);
            --shadow-md: 0 4px 16px rgba(10, 25, 50, 0.08);
            --shadow-lg: 0 8px 32px rgba(10, 25, 50, 0.12);
            --shadow-xl: 0 16px 48px rgba(10, 25, 50, 0.16);
            --font-family: 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', Arial, sans-serif;
            --container-max: 1200px;
            --transition-fast: 0.18s ease;
            --transition-normal: 0.28s ease;
        }

        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        body {
            font-family: var(--font-family);
            font-size: 16px;
            line-height: 1.72;
            color: var(--text-primary);
            background-color: var(--bg-white);
            overflow-x: hidden;
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
        }

        a {
            text-decoration: none;
            color: inherit;
            transition: color var(--transition-fast);
        }

        button {
            font-family: inherit;
            cursor: pointer;
            border: none;
            background: none;
            transition: all var(--transition-fast);
        }

        input,
        textarea,
        select {
            font-family: inherit;
            font-size: inherit;
            outline: none;
            border: 1px solid var(--border);
            border-radius: var(--radius-sm);
            transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
        }

        input:focus,
        textarea:focus,
        select:focus {
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(26, 107, 255, 0.12);
        }

        .container {
            max-width: var(--container-max);
            padding: 0 24px;
        }

        .container-wide {
            max-width: 1320px;
            margin: 0 auto;
            padding: 0 24px;
        }

        /* Header */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: rgba(255, 255, 255, 0.97);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid var(--border);
            box-shadow: var(--shadow-sm);
            transition: all var(--transition-normal);
        }
        .site-header.scrolled {
            box-shadow: var(--shadow-md);
        }
        .nav-toolbar {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding: 14px 0;
        }
        .nav-logo {
            display: flex;
            align-items: center;
            gap: 8px;
            flex-shrink: 0;
        }
        .nav-logo a {
            display: flex;
            align-items: center;
            gap: 8px;
            font-weight: 800;
            font-size: 1.35rem;
            color: var(--primary-dark);
            letter-spacing: -0.5px;
        }
        .nav-logo .logo-icon {
            width: 40px;
            height: 40px;
            border-radius: var(--radius-md);
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-weight: 900;
            font-size: 1.1rem;
            flex-shrink: 0;
            box-shadow: 0 4px 12px rgba(26, 107, 255, 0.3);
        }
        .nav-logo .logo-icon span {
            letter-spacing: -1px;
        }
        .nav-links {
            display: flex;
            align-items: center;
            gap: 2px;
            flex: 1;
            justify-content: center;
            flex-wrap: wrap;
        }
        .nav-links a {
            display: flex;
            align-items: center;
            gap: 4px;
            padding: 8px 13px;
            font-size: 0.88rem;
            font-weight: 500;
            color: var(--text-secondary);
            border-radius: var(--radius-sm);
            position: relative;
            white-space: nowrap;
            transition: all var(--transition-fast);
        }
        .nav-links a:hover {
            color: var(--primary);
            background: var(--primary-soft);
        }
        .nav-links a.active {
            color: var(--primary);
            background: var(--primary-soft);
            font-weight: 700;
        }
        .nav-links a.active::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 50%;
            transform: translateX(-50%);
            width: 20px;
            height: 3px;
            border-radius: 2px;
            background: var(--primary);
        }
        .nav-actions {
            display: flex;
            align-items: center;
            gap: 12px;
            flex-shrink: 0;
        }
        .nav-status {
            display: flex;
            align-items: center;
            gap: 6px;
            font-size: 0.78rem;
            color: var(--text-muted);
            background: var(--bg-gray);
            padding: 6px 12px;
            border-radius: var(--radius-full);
            font-weight: 500;
        }
        .nav-status .dot {
            width: 7px;
            height: 7px;
            border-radius: 50%;
            background: #2ecc71;
            box-shadow: 0 0 0 3px rgba(46, 204, 113, 0.15);
            animation: pulse-dot 2s infinite;
        }
        @keyframes pulse-dot {
            0%, 100% { opacity: 1; }
            50% { opacity: 0.4; }
        }
        .nav-notify {
            position: relative;
            width: 38px;
            height: 38px;
            border-radius: 50%;
            background: var(--bg-gray);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--text-secondary);
            transition: all var(--transition-fast);
            border: 1px solid transparent;
        }
        .nav-notify:hover {
            background: var(--primary-soft);
            color: var(--primary);
            border-color: var(--primary-light);
        }
        .nav-notify .badge-dot {
            position: absolute;
            top: 5px;
            right: 5px;
            width: 9px;
            height: 9px;
            border-radius: 50%;
            background: #ef4444;
            border: 2px solid #fff;
        }
        .btn-primary-nav {
            background: var(--primary);
            color: #fff;
            padding: 9px 20px;
            border-radius: var(--radius-sm);
            font-weight: 700;
            font-size: 0.86rem;
            border: none;
            transition: all var(--transition-fast);
            white-space: nowrap;
            box-shadow: 0 4px 12px rgba(26, 107, 255, 0.25);
        }
        .btn-primary-nav:hover {
            background: var(--primary-dark);
            color: #fff;
            transform: translateY(-1px);
            box-shadow: 0 6px 18px rgba(26, 107, 255, 0.35);
        }
        .nav-toggle {
            display: none;
            flex-direction: column;
            gap: 5px;
            padding: 6px;
            background: transparent;
            border: none;
            cursor: pointer;
        }
        .nav-toggle .bar {
            width: 24px;
            height: 2.5px;
            background: var(--text-primary);
            border-radius: 2px;
            transition: all var(--transition-normal);
        }

        /* Hero: Coupon wall */
        .hero-coupon {
            background: linear-gradient(160deg, #f4f8ff 0%, #eef4ff 45%, #e8f0ff 100%);
            padding: 64px 0 80px;
            position: relative;
            overflow: hidden;
            border-bottom: 1px solid var(--border-light);
        }
        .hero-coupon::before {
            content: '';
            position: absolute;
            top: -180px;
            right: -120px;
            width: 500px;
            height: 500px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(26,107,255,0.08) 0%, transparent 70%);
            pointer-events: none;
        }
        .hero-coupon::after {
            content: '';
            position: absolute;
            bottom: -120px;
            left: -80px;
            width: 350px;
            height: 350px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(15,157,143,0.07) 0%, transparent 70%);
            pointer-events: none;
        }
        .hero-coupon .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: var(--primary-soft);
            color: var(--primary);
            font-size: 0.82rem;
            font-weight: 600;
            padding: 7px 14px;
            border-radius: var(--radius-full);
            border: 1px solid var(--primary-light);
            margin-bottom: 18px;
        }
        .hero-coupon h1 {
            font-size: 2.5rem;
            font-weight: 800;
            color: var(--text-primary);
            letter-spacing: -1px;
            line-height: 1.25;
            margin-bottom: 14px;
        }
        .hero-coupon .hero-sub {
            font-size: 1.06rem;
            color: var(--text-secondary);
            line-height: 1.8;
            max-width: 560px;
            margin-bottom: 24px;
        }
        .hero-coupon .hero-metrics {
            display: flex;
            gap: 28px;
            flex-wrap: wrap;
            margin-bottom: 28px;
        }
        .hero-metrics .metric-item {
            display: flex;
            flex-direction: column;
        }
        .hero-metrics .metric-num {
            font-size: 1.5rem;
            font-weight: 800;
            color: var(--primary-dark);
            line-height: 1.2;
        }
        .hero-metrics .metric-label {
            font-size: 0.78rem;
            color: var(--text-muted);
            font-weight: 500;
        }
        .coupon-wall {
            position: relative;
            display: flex;
            flex-direction: column;
            gap: 18px;
            background: rgba(255,255,255,0.7);
            backdrop-filter: blur(10px);
            border: 1px solid rgba(255,255,255,0.9);
            border-radius: var(--radius-xl);
            padding: 28px;
            box-shadow: var(--shadow-lg);
        }
        .coupon-main {
            background: linear-gradient(135deg, #ffffff 0%, #f8fbff 100%);
            border: 2px solid var(--primary-light);
            border-radius: var(--radius-lg);
            padding: 28px 30px;
            box-shadow: var(--shadow-md);
            position: relative;
            overflow: hidden;
            transition: all var(--transition-normal);
        }
        .coupon-main:hover {
            box-shadow: var(--shadow-xl);
            transform: translateY(-3px);
        }
        .coupon-main::before {
            content: '';
            position: absolute;
            top: 0;
            right: 0;
            width: 140px;
            height: 140px;
            background: radial-gradient(circle, rgba(26,107,255,0.08) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }
        .coupon-main .coupon-tag {
            display: inline-block;
            background: var(--accent);
            color: #fff;
            font-size: 0.72rem;
            font-weight: 700;
            padding: 4px 12px;
            border-radius: var(--radius-full);
            letter-spacing: 0.5px;
            margin-bottom: 10px;
        }
        .coupon-main .coupon-title {
            font-size: 1.3rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 6px;
        }
        .coupon-main .coupon-desc {
            font-size: 0.88rem;
            color: var(--text-secondary);
            line-height: 1.7;
            margin-bottom: 14px;
        }
        .coupon-main .coupon-value {
            font-size: 2rem;
            font-weight: 900;
            color: var(--primary);
            letter-spacing: -0.5px;
        }
        .coupon-main .coupon-value span {
            font-size: 0.9rem;
            font-weight: 600;
            color: var(--text-muted);
        }
        .coupon-main .btn-claim {
            background: var(--primary);
            color: #fff;
            padding: 12px 28px;
            border-radius: var(--radius-sm);
            font-weight: 700;
            font-size: 0.95rem;
            border: none;
            transition: all var(--transition-fast);
            box-shadow: 0 6px 16px rgba(26,107,255,0.3);
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }
        .coupon-main .btn-claim:hover {
            background: var(--primary-dark);
            transform: translateY(-2px);
            box-shadow: 0 10px 24px rgba(26,107,255,0.4);
        }
        .coupon-mini-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 12px;
        }
        .coupon-mini {
            background: #fff;
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            padding: 16px 14px;
            text-align: center;
            transition: all var(--transition-fast);
            cursor: default;
        }
        .coupon-mini:hover {
            border-color: var(--primary-light);
            box-shadow: var(--shadow-md);
            transform: translateY(-2px);
        }
        .coupon-mini .mini-icon {
            width: 36px;
            height: 36px;
            border-radius: var(--radius-sm);
            background: var(--primary-soft);
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 8px;
            font-size: 1rem;
        }
        .coupon-mini .mini-name {
            font-size: 0.8rem;
            font-weight: 600;
            color: var(--text-primary);
            display: block;
            line-height: 1.3;
        }
        .coupon-mini .mini-tag {
            font-size: 0.68rem;
            color: var(--text-muted);
            font-weight: 500;
        }

        /* Section base */
        .section-block {
            padding: 72px 0;
        }
        .section-block .section-head {
            margin-bottom: 44px;
        }
        .section-block .section-label {
            display: inline-block;
            font-size: 0.78rem;
            font-weight: 700;
            color: var(--primary);
            background: var(--primary-soft);
            padding: 5px 14px;
            border-radius: var(--radius-full);
            letter-spacing: 0.6px;
            margin-bottom: 10px;
            text-transform: uppercase;
        }
        .section-block .section-title {
            font-size: 1.85rem;
            font-weight: 800;
            color: var(--text-primary);
            letter-spacing: -0.5px;
            margin-bottom: 10px;
            line-height: 1.35;
        }
        .section-block .section-desc {
            font-size: 0.98rem;
            color: var(--text-secondary);
            line-height: 1.8;
            max-width: 720px;
        }

        /* Stats */
        .stats-row-slim {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }
        .stat-card-slim {
            background: var(--bg-white);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            padding: 22px 20px;
            text-align: center;
            transition: all var(--transition-fast);
        }
        .stat-card-slim:hover {
            box-shadow: var(--shadow-md);
            border-color: var(--primary-light);
            transform: translateY(-2px);
        }
        .stat-card-slim .stat-num {
            font-size: 2rem;
            font-weight: 800;
            color: var(--primary);
            line-height: 1.2;
        }
        .stat-card-slim .stat-label {
            font-size: 0.82rem;
            color: var(--text-muted);
            font-weight: 500;
            margin-top: 4px;
        }

        /* Feature cards */
        .feature-grid-6 {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }
        .feature-card {
            background: var(--bg-white);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            padding: 24px 22px;
            transition: all var(--transition-fast);
            position: relative;
            overflow: hidden;
        }
        .feature-card:hover {
            box-shadow: var(--shadow-lg);
            border-color: var(--primary-light);
            transform: translateY(-3px);
        }
        .feature-card .feature-icon {
            width: 48px;
            height: 48px;
            border-radius: var(--radius-md);
            background: var(--primary-soft);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.3rem;
            margin-bottom: 14px;
        }
        .feature-card h4 {
            font-size: 1.05rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 8px;
            letter-spacing: -0.2px;
        }
        .feature-card p {
            font-size: 0.86rem;
            color: var(--text-secondary);
            line-height: 1.72;
            margin-bottom: 0;
        }

        /* Workflow */
        .workflow-row {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }
        .workflow-step {
            position: relative;
            background: var(--bg-white);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            padding: 24px 20px;
            text-align: center;
            transition: all var(--transition-fast);
        }
        .workflow-step:hover {
            box-shadow: var(--shadow-md);
            border-color: var(--primary-light);
        }
        .workflow-step .step-num {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: var(--primary);
            color: #fff;
            font-weight: 800;
            font-size: 1rem;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 12px;
            box-shadow: 0 4px 12px rgba(26,107,255,0.3);
        }
        .workflow-step h4 {
            font-size: 0.98rem;
            font-weight: 700;
            margin-bottom: 6px;
        }
        .workflow-step p {
            font-size: 0.8rem;
            color: var(--text-muted);
            margin-bottom: 0;
            line-height: 1.6;
        }

        /* Scenario */
        .scenario-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 20px;
        }
        .scenario-card {
            background: var(--bg-white);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            padding: 24px;
            display: flex;
            gap: 16px;
            align-items: flex-start;
            transition: all var(--transition-fast);
        }
        .scenario-card:hover {
            box-shadow: var(--shadow-md);
            border-color: var(--primary-light);
            transform: translateY(-2px);
        }
        .scenario-card .scenario-icon {
            width: 44px;
            height: 44px;
            border-radius: var(--radius-sm);
            background: var(--secondary-light);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.2rem;
            flex-shrink: 0;
        }
        .scenario-card h4 {
            font-size: 1rem;
            font-weight: 700;
            margin-bottom: 6px;
        }
        .scenario-card p {
            font-size: 0.84rem;
            color: var(--text-secondary);
            line-height: 1.7;
            margin-bottom: 0;
        }

        /* Cases */
        .case-panel {
            background: var(--bg-dark);
            border-radius: var(--radius-xl);
            padding: 48px 44px;
            position: relative;
            overflow: hidden;
            color: #fff;
        }
        .case-panel::before {
            content: '';
            position: absolute;
            top: -100px;
            right: -60px;
            width: 400px;
            height: 400px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(26,107,255,0.18) 0%, transparent 70%);
            pointer-events: none;
        }
        .case-panel .case-label {
            font-size: 0.78rem;
            font-weight: 700;
            color: var(--accent);
            letter-spacing: 1px;
            text-transform: uppercase;
            margin-bottom: 8px;
        }
        .case-panel h3 {
            font-size: 1.7rem;
            font-weight: 800;
            color: #fff;
            letter-spacing: -0.5px;
            margin-bottom: 16px;
        }
        .case-panel p {
            font-size: 0.95rem;
            color: rgba(255,255,255,0.75);
            line-height: 1.8;
            max-width: 800px;
            margin-bottom: 0;
        }
        .case-stats {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
            margin-top: 32px;
        }
        .case-stat-item {
            background: rgba(255,255,255,0.06);
            border: 1px solid rgba(255,255,255,0.1);
            border-radius: var(--radius-md);
            padding: 20px;
            text-align: center;
        }
        .case-stat-item .case-stat-num {
            font-size: 1.8rem;
            font-weight: 800;
            color: #fff;
            line-height: 1.2;
        }
        .case-stat-item .case-stat-label {
            font-size: 0.78rem;
            color: rgba(255,255,255,0.6);
            font-weight: 500;
        }

        /* Pricing */
        .pricing-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }
        .pricing-card {
            background: var(--bg-white);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: 30px 26px;
            text-align: center;
            transition: all var(--transition-fast);
            position: relative;
        }
        .pricing-card:hover {
            box-shadow: var(--shadow-lg);
            border-color: var(--primary-light);
            transform: translateY(-3px);
        }
        .pricing-card.featured {
            border: 2px solid var(--primary);
            box-shadow: var(--shadow-lg);
        }
        .pricing-card.featured::before {
            content: '推荐';
            position: absolute;
            top: -12px;
            left: 50%;
            transform: translateX(-50%);
            background: var(--primary);
            color: #fff;
            font-size: 0.7rem;
            font-weight: 700;
            padding: 4px 16px;
            border-radius: var(--radius-full);
        }
        .pricing-card .price-name {
            font-size: 1rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 12px;
        }
        .pricing-card .price-tag {
            font-size: 2.2rem;
            font-weight: 900;
            color: var(--primary);
            letter-spacing: -0.5px;
        }
        .pricing-card .price-tag span {
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--text-muted);
        }
        .pricing-card ul {
            list-style: none;
            padding: 0;
            margin: 20px 0 0;
            text-align: left;
        }
        .pricing-card ul li {
            font-size: 0.84rem;
            color: var(--text-secondary);
            padding: 8px 0;
            border-bottom: 1px solid var(--border-light);
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .pricing-card ul li::before {
            content: '✓';
            color: var(--secondary);
            font-weight: 700;
            flex-shrink: 0;
        }
        .btn-pricing {
            margin-top: 20px;
            display: inline-block;
            background: var(--primary-soft);
            color: var(--primary);
            padding: 12px 24px;
            border-radius: var(--radius-sm);
            font-weight: 700;
            font-size: 0.9rem;
            transition: all var(--transition-fast);
            width: 100%;
            text-align: center;
        }
        .btn-pricing:hover {
            background: var(--primary);
            color: #fff;
            box-shadow: 0 6px 16px rgba(26,107,255,0.25);
        }
        .pricing-card.featured .btn-pricing {
            background: var(--primary);
            color: #fff;
        }
        .pricing-card.featured .btn-pricing:hover {
            background: var(--primary-dark);
        }

        /* FAQ */
        .faq-wrap {
            max-width: 800px;
            margin: 0 auto;
        }
        .faq-item {
            background: var(--bg-white);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            margin-bottom: 12px;
            overflow: hidden;
            transition: all var(--transition-fast);
        }
        .faq-item:hover {
            box-shadow: var(--shadow-sm);
            border-color: var(--primary-light);
        }
        .faq-item .faq-question {
            width: 100%;
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 18px 22px;
            font-size: 0.95rem;
            font-weight: 700;
            color: var(--text-primary);
            background: transparent;
            border: none;
            cursor: pointer;
            text-align: left;
            gap: 12px;
        }
        .faq-item .faq-question .faq-icon {
            flex-shrink: 0;
            width: 22px;
            height: 22px;
            border-radius: 50%;
            background: var(--primary-soft);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1rem;
            color: var(--primary);
            transition: transform var(--transition-fast);
        }
        .faq-item .faq-answer {
            padding: 0 22px 18px;
            font-size: 0.86rem;
            color: var(--text-secondary);
            line-height: 1.8;
            display: none;
        }
        .faq-item.open .faq-answer {
            display: block;
        }
        .faq-item.open .faq-icon {
            transform: rotate(45deg);
        }

        /* CTA */
        .cta-section {
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
            border-radius: var(--radius-xl);
            padding: 56px 48px;
            text-align: center;
            color: #fff;
            position: relative;
            overflow: hidden;
            margin-top: 40px;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            top: -80px;
            right: -40px;
            width: 300px;
            height: 300px;
            border-radius: 50%;
            background: rgba(255,255,255,0.08);
            pointer-events: none;
        }
        .cta-section h3 {
            font-size: 2rem;
            font-weight: 800;
            letter-spacing: -0.5px;
            margin-bottom: 14px;
        }
        .cta-section p {
            font-size: 1rem;
            color: rgba(255,255,255,0.85);
            max-width: 620px;
            margin: 0 auto 24px;
            line-height: 1.8;
        }
        .btn-cta-light {
            background: #fff;
            color: var(--primary-dark);
            padding: 14px 32px;
            border-radius: var(--radius-sm);
            font-weight: 800;
            font-size: 0.95rem;
            border: none;
            transition: all var(--transition-fast);
            box-shadow: 0 6px 18px rgba(0,0,0,0.15);
        }
        .btn-cta-light:hover {
            transform: translateY(-2px);
            box-shadow: 0 10px 28px rgba(0,0,0,0.25);
            color: var(--primary);
        }
        .btn-cta-ghost {
            background: transparent;
            color: #fff;
            padding: 14px 28px;
            border-radius: var(--radius-sm);
            font-weight: 700;
            font-size: 0.95rem;
            border: 2px solid rgba(255,255,255,0.4);
            transition: all var(--transition-fast);
        }
        .btn-cta-ghost:hover {
            border-color: #fff;
            background: rgba(255,255,255,0.1);
        }

        /* Footer */
        .site-footer {
            background: var(--bg-dark);
            color: var(--text-light);
            padding: 56px 0 24px;
            margin-top: 0;
        }
        .site-footer .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 36px;
            margin-bottom: 40px;
        }
        .site-footer .footer-brand .footer-logo {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 1.2rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 14px;
        }
        .site-footer .footer-brand .logo-icon {
            width: 36px;
            height: 36px;
            border-radius: var(--radius-sm);
            background: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-weight: 800;
            font-size: 0.95rem;
        }
        .site-footer .footer-brand p {
            font-size: 0.82rem;
            line-height: 1.75;
            color: var(--text-light);
            max-width: 320px;
        }
        .site-footer .footer-col h4 {
            font-size: 0.88rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 16px;
            letter-spacing: 0.3px;
        }
        .site-footer .footer-col ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .site-footer .footer-col ul li {
            margin-bottom: 8px;
        }
        .site-footer .footer-col ul li a {
            font-size: 0.82rem;
            color: var(--text-light);
            transition: color var(--transition-fast);
            line-height: 1.6;
        }
        .site-footer .footer-col ul li a:hover {
            color: #fff;
        }
        .site-footer .footer-bottom {
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 16px;
            border-top: 1px solid rgba(255,255,255,0.08);
            padding-top: 20px;
        }
        .site-footer .footer-bottom p {
            font-size: 0.75rem;
            color: var(--text-light);
            margin-bottom: 2px;
            line-height: 1.6;
        }
        .site-footer .footer-bottom .footer-links a {
            font-size: 0.78rem;
            color: var(--text-light);
        }
        .site-footer .footer-bottom .footer-links a:hover {
            color: #fff;
        }
        .site-footer .footer-bottom .footer-links span {
            color: rgba(255,255,255,0.3);
            margin: 0 6px;
        }

        /* Responsive */
        @media (max-width: 1024px) {
            .nav-links {
                gap: 0;
            }
            .nav-links a {
                padding: 7px 10px;
                font-size: 0.82rem;
            }
            .hero-coupon h1 {
                font-size: 2.2rem;
            }
            .feature-grid-6 {
                grid-template-columns: repeat(2, 1fr);
            }
            .coupon-mini-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .workflow-row {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (max-width: 768px) {
            .nav-toggle {
                display: flex;
            }
            .nav-links {
                display: none;
                position: absolute;
                top: 100%;
                left: 0;
                right: 0;
                background: #fff;
                flex-direction: column;
                align-items: flex-start;
                padding: 16px 24px;
                border-bottom: 1px solid var(--border);
                box-shadow: var(--shadow-lg);
                gap: 4px;
            }
            .nav-links.open {
                display: flex;
            }
            .nav-links a {
                width: 100%;
                padding: 10px 12px;
                font-size: 0.9rem;
            }
            .nav-status {
                display: none;
            }
            .hero-coupon {
                padding: 40px 0 56px;
            }
            .hero-coupon h1 {
                font-size: 1.8rem;
            }
            .hero-coupon .hero-sub {
                font-size: 0.95rem;
            }
            .section-block {
                padding: 52px 0;
            }
            .section-block .section-title {
                font-size: 1.5rem;
            }
            .stats-row-slim {
                grid-template-columns: repeat(2, 1fr);
            }
            .feature-grid-6 {
                grid-template-columns: 1fr;
            }
            .workflow-row {
                grid-template-columns: 1fr;
            }
            .scenario-grid {
                grid-template-columns: 1fr;
            }
            .pricing-grid {
                grid-template-columns: 1fr;
            }
            .case-panel {
                padding: 32px 24px;
            }
            .case-stats {
                grid-template-columns: 1fr;
            }
            .cta-section {
                padding: 36px 24px;
            }
            .cta-section h3 {
                font-size: 1.5rem;
            }
            .site-footer .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .site-footer .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
            .coupon-wall {
                padding: 16px;
            }
            .coupon-main {
                padding: 20px;
            }
        }
        @media (max-width: 520px) {
            .container, .container-wide {
                padding: 0 16px;
            }
            .hero-coupon .hero-metrics {
                gap: 16px;
            }
            .hero-coupon .hero-metrics .metric-num {
                font-size: 1.2rem;
            }
            .coupon-main .coupon-title {
                font-size: 1.05rem;
            }
            .coupon-main .coupon-value {
                font-size: 1.5rem;
            }
            .coupon-mini-grid {
                grid-template-columns: 1fr 1fr;
                gap: 8px;
            }
            .section-block .section-title {
                font-size: 1.3rem;
            }
        }

/* roulang page: category6 */
:root {
  --primary: #1a6bff;
  --primary-dark: #0d4fc5;
  --primary-light: #e8f0ff;
  --primary-soft: #f2f7ff;
  --secondary: #0f9d8f;
  --secondary-light: #e8f7f5;
  --accent: #ff8a3d;
  --accent-light: #fff4ec;
  --bg-white: #ffffff;
  --bg-gray: #f6f8fb;
  --bg-dark: #0b1c3a;
  --bg-dark-light: #14294f;
  --text-primary: #1a1f36;
  --text-secondary: #4a5578;
  --text-muted: #7a86a8;
  --text-light: #9aa5c4;
  --border: #e8ecf4;
  --border-light: #f0f3f9;
  --radius-xs: 6px;
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 20px;
  --radius-full: 999px;
  --shadow-sm: 0 2px 8px rgba(10, 25, 50, 0.05);
  --shadow-md: 0 4px 16px rgba(10, 25, 50, 0.08);
  --shadow-lg: 0 8px 32px rgba(10, 25, 50, 0.12);
  --shadow-xl: 0 16px 48px rgba(10, 25, 50, 0.16);
  --font-family: 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', Arial, sans-serif;
  --container-max: 1200px;
  --container-wide: 1320px;
  --transition-fast: 0.18s ease;
  --transition-normal: 0.28s ease;
  --transition-slow: 0.4s ease;
  --spacing-xs: 4px;
  --spacing-sm: 8px;
  --spacing-md: 16px;
  --spacing-lg: 24px;
  --spacing-xl: 32px;
  --spacing-2xl: 48px;
  --spacing-3xl: 64px;
  --spacing-4xl: 80px;
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-family);
  font-size: 16px;
  line-height: 1.7;
  color: var(--text-primary);
  background-color: var(--bg-white);
  overflow-x: hidden;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

a {
  text-decoration: none;
  color: inherit;
  transition: color var(--transition-fast);
}

button {
  font-family: inherit;
  cursor: pointer;
  border: none;
  background: none;
  transition: all var(--transition-fast);
}

input,
textarea,
select {
  font-family: inherit;
  font-size: inherit;
  outline: none;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

input:focus,
textarea:focus,
select:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(26, 107, 255, 0.12);
}

.container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--spacing-lg);
}

.container-wide {
  max-width: var(--container-wide);
  margin: 0 auto;
  padding: 0 var(--spacing-lg);
}

/* ========== Header / Nav ========== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(255, 255, 255, 0.96);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border);
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-normal);
}

.site-header.scrolled {
  box-shadow: var(--shadow-md);
  border-bottom-color: var(--border);
}

.nav-toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--spacing-md);
  padding: var(--spacing-md) 0;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  flex-shrink: 0;
}

.nav-logo a {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  font-weight: 800;
  font-size: 1.35rem;
  color: var(--primary-dark);
  letter-spacing: -0.5px;
}

.nav-logo .logo-icon {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-md);
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-weight: 900;
  font-size: 1.1rem;
  flex-shrink: 0;
  box-shadow: 0 4px 12px rgba(26, 107, 255, 0.3);
}

.nav-logo .logo-icon span {
  letter-spacing: -1px;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 2px;
  flex: 1;
  justify-content: center;
  flex-wrap: wrap;
}

.nav-links a {
  display: flex;
  align-items: center;
  gap: 4px;
  padding: 8px 14px;
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-secondary);
  border-radius: var(--radius-sm);
  white-space: nowrap;
  transition: all var(--transition-fast);
}

.nav-links a:hover {
  color: var(--primary);
  background: var(--primary-soft);
}

.nav-links a.active {
  color: var(--primary);
  background: var(--primary-soft);
  font-weight: 700;
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  flex-shrink: 0;
}

.nav-status {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 0.8rem;
  color: var(--text-muted);
  padding: 4px 10px;
  border-radius: var(--radius-full);
  background: var(--bg-gray);
  white-space: nowrap;
}

.nav-status .dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--secondary);
  animation: pulse-dot 2s ease-in-out infinite;
}

@keyframes pulse-dot {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.5; transform: scale(1.3); }
}

.nav-notify {
  position: relative;
  width: 38px;
  height: 38px;
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-secondary);
  background: var(--bg-gray);
  transition: all var(--transition-fast);
}

.nav-notify:hover {
  color: var(--primary);
  background: var(--primary-soft);
}

.badge-dot {
  position: absolute;
  top: 6px;
  right: 6px;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent);
}

.btn-primary-nav {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 9px 18px;
  background: var(--primary);
  color: #fff;
  font-size: 0.85rem;
  font-weight: 600;
  border-radius: var(--radius-full);
  white-space: nowrap;
  transition: all var(--transition-fast);
  box-shadow: 0 2px 8px rgba(26, 107, 255, 0.25);
}

.btn-primary-nav:hover {
  background: var(--primary-dark);
  box-shadow: 0 4px 16px rgba(26, 107, 255, 0.35);
  transform: translateY(-1px);
}

.btn-primary-nav:active {
  transform: translateY(0);
  box-shadow: 0 2px 6px rgba(26, 107, 255, 0.2);
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  width: 40px;
  height: 40px;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-sm);
  background: var(--bg-gray);
}

.nav-toggle .bar {
  width: 18px;
  height: 2px;
  background: var(--text-primary);
  border-radius: 2px;
  transition: all var(--transition-fast);
}

.nav-toggle.active .bar:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.nav-toggle.active .bar:nth-child(2) {
  opacity: 0;
}

.nav-toggle.active .bar:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* ========== Hero (Category6) ========== */
.category-hero {
  position: relative;
  padding: var(--spacing-3xl) 0 var(--spacing-2xl);
  background: linear-gradient(160deg, var(--primary-soft) 0%, var(--bg-white) 55%, var(--bg-gray) 100%);
  border-bottom: 1px solid var(--border-light);
  overflow: hidden;
}

.category-hero::before {
  content: '';
  position: absolute;
  top: -120px;
  right: -80px;
  width: 360px;
  height: 360px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(26, 107, 255, 0.08) 0%, transparent 70%);
  pointer-events: none;
}

.category-hero::after {
  content: '';
  position: absolute;
  bottom: -100px;
  left: -60px;
  width: 280px;
  height: 280px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(15, 157, 143, 0.06) 0%, transparent 70%);
  pointer-events: none;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-2xl);
  align-items: center;
  position: relative;
  z-index: 1;
}

.hero-crumb {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.82rem;
  color: var(--text-muted);
  margin-bottom: var(--spacing-md);
  padding: 4px 12px;
  background: var(--bg-white);
  border-radius: var(--radius-full);
  border: 1px solid var(--border-light);
}

.hero-crumb span {
  color: var(--primary);
  font-weight: 600;
}

.hero-crumb .sep {
  color: var(--text-light);
}

.hero-title {
  font-size: 2.75rem;
  font-weight: 900;
  line-height: 1.2;
  color: var(--text-primary);
  letter-spacing: -1px;
  margin-bottom: var(--spacing-md);
}

.hero-subtitle {
  font-size: 1.1rem;
  color: var(--text-secondary);
  line-height: 1.8;
  margin-bottom: var(--spacing-lg);
  max-width: 520px;
}

.hero-actions {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
  flex-wrap: wrap;
  margin-bottom: var(--spacing-lg);
}

.btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 13px 28px;
  background: var(--primary);
  color: #fff;
  font-size: 0.95rem;
  font-weight: 700;
  border-radius: var(--radius-full);
  transition: all var(--transition-fast);
  box-shadow: 0 4px 16px rgba(26, 107, 255, 0.3);
}

.btn-primary:hover {
  background: var(--primary-dark);
  box-shadow: 0 6px 24px rgba(26, 107, 255, 0.4);
  transform: translateY(-2px);
}

.btn-primary:active {
  transform: translateY(0);
}

.btn-outline {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 13px 24px;
  background: var(--bg-white);
  color: var(--primary);
  font-size: 0.95rem;
  font-weight: 600;
  border-radius: var(--radius-full);
  border: 2px solid var(--primary);
  transition: all var(--transition-fast);
}

.btn-outline:hover {
  background: var(--primary-soft);
  transform: translateY(-2px);
}

.hero-mini-stats {
  display: flex;
  align-items: center;
  gap: var(--spacing-lg);
  flex-wrap: wrap;
}

.hero-mini-stats .stat-item {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.85rem;
  color: var(--text-muted);
}

.hero-mini-stats .stat-item strong {
  font-size: 1.2rem;
  color: var(--text-primary);
  font-weight: 800;
}

.hero-panel {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
}

.hero-icon-matrix {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--spacing-sm);
  background: var(--bg-white);
  border-radius: var(--radius-lg);
  padding: var(--spacing-lg);
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--border-light);
}

.matrix-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  padding: var(--spacing-md) var(--spacing-sm);
  border-radius: var(--radius-md);
  background: var(--bg-gray);
  text-align: center;
  transition: all var(--transition-fast);
}

.matrix-item:hover {
  background: var(--primary-soft);
  transform: translateY(-3px);
  box-shadow: var(--shadow-sm);
}

.matrix-item .matrix-icon {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  color: var(--primary);
  background: var(--primary-light);
}

.matrix-item .matrix-label {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text-secondary);
  line-height: 1.3;
}

.matrix-item .matrix-value {
  font-size: 0.72rem;
  color: var(--text-muted);
}

.hero-status-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--spacing-md);
  padding: var(--spacing-md) var(--spacing-lg);
  background: var(--bg-white);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-md);
  border: 1px solid var(--border-light);
  flex-wrap: wrap;
}

.status-info {
  display: flex;
  align-items: center;
  gap: 10px;
}

.status-info .status-icon {
  width: 34px;
  height: 34px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--secondary-light);
  color: var(--secondary);
  font-size: 0.95rem;
  font-weight: 700;
}

.status-info .status-text {
  font-size: 0.85rem;
  color: var(--text-secondary);
  line-height: 1.4;
}

.status-info .status-text strong {
  display: block;
  font-size: 0.9rem;
  color: var(--text-primary);
  font-weight: 700;
}

.status-badge {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 6px 14px;
  border-radius: var(--radius-full);
  background: var(--secondary-light);
  color: var(--secondary);
  font-size: 0.78rem;
  font-weight: 600;
  white-space: nowrap;
}

/* ========== Section Base ========== */
.section {
  padding: var(--spacing-3xl) 0;
}

.section-white {
  background: var(--bg-white);
}

.section-gray {
  background: var(--bg-gray);
}

.section-soft {
  background: var(--primary-soft);
}

.section-dark {
  background: var(--bg-dark);
  color: var(--text-light);
}

.section-heading {
  margin-bottom: var(--spacing-2xl);
}

.section-heading .section-tag {
  display: inline-block;
  padding: 4px 14px;
  background: var(--primary-light);
  color: var(--primary);
  font-size: 0.82rem;
  font-weight: 700;
  border-radius: var(--radius-full);
  margin-bottom: var(--spacing-sm);
}

.section-heading h2 {
  font-size: 1.95rem;
  font-weight: 800;
  line-height: 1.3;
  color: var(--text-primary);
  letter-spacing: -0.5px;
  margin-bottom: var(--spacing-sm);
}

.section-heading .section-desc {
  font-size: 1rem;
  color: var(--text-muted);
  line-height: 1.8;
  max-width: 720px;
}

.section-dark .section-heading h2 {
  color: #fff;
}

.section-dark .section-heading .section-desc {
  color: var(--text-light);
}

/* ========== Value Proposition ========== */
.value-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--spacing-lg);
}

.value-card {
  padding: var(--spacing-lg);
  background: var(--bg-white);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-light);
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-normal);
}

.value-card:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-4px);
  border-color: var(--primary-light);
}

.value-card .value-icon {
  width: 52px;
  height: 52px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.4rem;
  color: var(--primary);
  background: var(--primary-light);
  margin-bottom: var(--spacing-md);
}

.value-card h3 {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: var(--spacing-sm);
}

.value-card p {
  font-size: 0.92rem;
  color: var(--text-muted);
  line-height: 1.7;
}

/* ========== Feature Group ========== */
.feature-group-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--spacing-xl);
}

.feature-list-block {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
}

.feature-row {
  display: flex;
  align-items: flex-start;
  gap: var(--spacing-md);
  padding: var(--spacing-md);
  border-radius: var(--radius-md);
  background: var(--bg-white);
  border: 1px solid var(--border-light);
  transition: all var(--transition-fast);
}

.feature-row:hover {
  background: var(--primary-soft);
  border-color: var(--primary-light);
}

.feature-row .f-icon {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  color: var(--primary);
  background: var(--primary-light);
  flex-shrink: 0;
}

.feature-row .f-content h4 {
  font-size: 1rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 4px;
}

.feature-row .f-content p {
  font-size: 0.88rem;
  color: var(--text-muted);
  line-height: 1.6;
}

.feature-visual {
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  position: relative;
}

.feature-visual img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-slow);
}

.feature-visual:hover img {
  transform: scale(1.03);
}

.feature-visual .img-overlay {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  padding: var(--spacing-lg);
  background: linear-gradient(180deg, transparent 0%, rgba(10, 20, 50, 0.85) 100%);
  color: #fff;
}

.feature-visual .img-overlay h3 {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 4px;
}

.feature-visual .img-overlay p {
  font-size: 0.85rem;
  color: rgba(255, 255, 255, 0.85);
  line-height: 1.5;
}

/* ========== Use Scenarios ========== */
.scenario-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--spacing-md);
}

.scenario-card {
  padding: var(--spacing-lg);
  background: var(--bg-white);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-light);
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-normal);
  display: flex;
  flex-direction: column;
}

.scenario-card:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-4px);
}

.scenario-card .s-num {
  font-size: 2rem;
  font-weight: 900;
  color: var(--primary-light);
  line-height: 1;
  margin-bottom: var(--spacing-sm);
}

.scenario-card h3 {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: var(--spacing-sm);
}

.scenario-card p {
  font-size: 0.88rem;
  color: var(--text-muted);
  line-height: 1.7;
}

/* ========== Statistics / Social Proof ========== */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--spacing-md);
}

.stat-card {
  text-align: center;
  padding: var(--spacing-lg);
  background: var(--bg-white);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-light);
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-normal);
}

.stat-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
}

.stat-card .stat-num {
  font-size: 2.5rem;
  font-weight: 900;
  color: var(--primary);
  line-height: 1.2;
  letter-spacing: -1px;
}

.stat-card .stat-label {
  font-size: 0.88rem;
  color: var(--text-muted);
  margin-top: 4px;
}

/* ========== Brand Intro / Deep Content ========== */
.brand-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-2xl);
  align-items: center;
}

.brand-content h2 {
  font-size: 1.8rem;
  font-weight: 800;
  color: var(--text-primary);
  margin-bottom: var(--spacing-md);
  letter-spacing: -0.5px;
}

.brand-content p {
  font-size: 0.95rem;
  color: var(--text-secondary);
  line-height: 1.85;
  margin-bottom: var(--spacing-md);
}

.brand-image {
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
}

.brand-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-slow);
}

.brand-image:hover img {
  transform: scale(1.02);
}

/* ========== Pricing / Service Tiers ========== */
.pricing-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--spacing-lg);
}

.pricing-card {
  padding: var(--spacing-xl);
  background: var(--bg-white);
  border-radius: var(--radius-lg);
  border: 2px solid var(--border-light);
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-normal);
  position: relative;
  display: flex;
  flex-direction: column;
}

.pricing-card:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-4px);
}

.pricing-card.featured {
  border-color: var(--primary);
  box-shadow: var(--shadow-lg);
}

.pricing-card .p-badge {
  position: absolute;
  top: -12px;
  left: 50%;
  transform: translateX(-50%);
  padding: 4px 16px;
  border-radius: var(--radius-full);
  background: var(--primary);
  color: #fff;
  font-size: 0.78rem;
  font-weight: 700;
  white-space: nowrap;
}

.pricing-card .p-tier {
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: var(--spacing-sm);
}

.pricing-card .p-price {
  font-size: 2.25rem;
  font-weight: 900;
  color: var(--text-primary);
  line-height: 1.2;
  margin-bottom: var(--spacing-sm);
}

.pricing-card .p-price span {
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--text-muted);
}

.pricing-card .p-desc {
  font-size: 0.9rem;
  color: var(--text-muted);
  margin-bottom: var(--spacing-md);
  line-height: 1.6;
}

.pricing-card ul {
  list-style: none;
  margin-bottom: var(--spacing-lg);
  flex: 1;
}

.pricing-card ul li {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.88rem;
  color: var(--text-secondary);
  padding: 5px 0;
}

.pricing-card ul li::before {
  content: '✓';
  color: var(--secondary);
  font-weight: 700;
}

.pricing-card .btn-pricing {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 11px 20px;
  border-radius: var(--radius-full);
  font-size: 0.9rem;
  font-weight: 700;
  transition: all var(--transition-fast);
  border: 2px solid var(--border);
  color: var(--text-secondary);
  background: var(--bg-white);
}

.pricing-card .btn-pricing:hover {
  border-color: var(--primary);
  color: var(--primary);
  background: var(--primary-soft);
}

.pricing-card.featured .btn-pricing {
  background: var(--primary);
  color: #fff;
  border-color: var(--primary);
}

.pricing-card.featured .btn-pricing:hover {
  background: var(--primary-dark);
}

/* ========== FAQ ========== */
.faq-list {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
  max-width: 800px;
  margin: 0 auto;
}

.faq-item {
  background: var(--bg-white);
  border-radius: var(--radius-md);
  border: 1px solid var(--border-light);
  overflow: hidden;
  transition: all var(--transition-fast);
}

.faq-item:hover {
  border-color: var(--primary-light);
  box-shadow: var(--shadow-sm);
}

.faq-question {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--spacing-md);
  padding: var(--spacing-md) var(--spacing-lg);
  cursor: pointer;
  font-weight: 700;
  font-size: 0.95rem;
  color: var(--text-primary);
  transition: all var(--transition-fast);
}

.faq-question:hover {
  color: var(--primary);
}

.faq-question .faq-toggle {
  flex-shrink: 0;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
  color: var(--primary);
  background: var(--primary-light);
  transition: transform var(--transition-fast);
}

.faq-item.open .faq-toggle {
  transform: rotate(45deg);
}

.faq-answer {
  padding: 0 var(--spacing-lg) var(--spacing-md);
  font-size: 0.9rem;
  color: var(--text-muted);
  line-height: 1.8;
  display: none;
}

.faq-item.open .faq-answer {
  display: block;
}

/* ========== Final CTA ========== */
.cta-section {
  padding: var(--spacing-3xl) 0;
  background: linear-gradient(150deg, var(--bg-dark) 0%, var(--bg-dark-light) 100%);
  position: relative;
  overflow: hidden;
}

.cta-section::before {
  content: '';
  position: absolute;
  top: -100px;
  left: 20%;
  width: 500px;
  height: 500px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(26, 107, 255, 0.15) 0%, transparent 70%);
  pointer-events: none;
}

.cta-content {
  position: relative;
  z-index: 1;
  text-align: center;
  max-width: 680px;
  margin: 0 auto;
}

.cta-content h2 {
  font-size: 2.2rem;
  font-weight: 900;
  color: #fff;
  letter-spacing: -0.5px;
  margin-bottom: var(--spacing-md);
}

.cta-content p {
  font-size: 1.05rem;
  color: rgba(255, 255, 255, 0.75);
  line-height: 1.8;
  margin-bottom: var(--spacing-xl);
}

.cta-buttons {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-md);
  flex-wrap: wrap;
}

.btn-cta-primary {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 14px 32px;
  background: var(--accent);
  color: #fff;
  font-size: 1rem;
  font-weight: 700;
  border-radius: var(--radius-full);
  transition: all var(--transition-fast);
  box-shadow: 0 4px 20px rgba(255, 138, 61, 0.35);
}

.btn-cta-primary:hover {
  background: #e67728;
  box-shadow: 0 6px 28px rgba(255, 138, 61, 0.5);
  transform: translateY(-2px);
}

.btn-cta-secondary {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 14px 28px;
  background: transparent;
  color: #fff;
  font-size: 0.95rem;
  font-weight: 600;
  border-radius: var(--radius-full);
  border: 2px solid rgba(255, 255, 255, 0.4);
  transition: all var(--transition-fast);
}

.btn-cta-secondary:hover {
  border-color: #fff;
  background: rgba(255, 255, 255, 0.1);
  transform: translateY(-2px);
}

/* ========== Footer ========== */
.site-footer {
  background: var(--bg-dark);
  padding: var(--spacing-3xl) 0 var(--spacing-lg);
  color: var(--text-light);
  border-top: 1px solid rgba(255, 255, 255, 0.06);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.6fr 1fr 1fr 1fr;
  gap: var(--spacing-xl);
  margin-bottom: var(--spacing-2xl);
}

.footer-brand .footer-logo {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  font-weight: 800;
  font-size: 1.25rem;
  color: #fff;
  margin-bottom: var(--spacing-md);
}

.footer-brand .footer-logo .logo-icon {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-md);
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-weight: 900;
  font-size: 1rem;
  box-shadow: 0 4px 12px rgba(26, 107, 255, 0.35);
}

.footer-brand p {
  font-size: 0.88rem;
  color: var(--text-light);
  line-height: 1.8;
  max-width: 320px;
}

.footer-col h4 {
  font-size: 0.95rem;
  font-weight: 700;
  color: #fff;
  margin-bottom: var(--spacing-md);
  letter-spacing: 0.5px;
}

.footer-col ul {
  list-style: none;
}

.footer-col ul li {
  margin-bottom: 6px;
}

.footer-col ul li a {
  font-size: 0.88rem;
  color: var(--text-light);
  transition: color var(--transition-fast);
}

.footer-col ul li a:hover {
  color: #fff;
}

.footer-bottom {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: var(--spacing-md);
  flex-wrap: wrap;
  padding-top: var(--spacing-lg);
  border-top: 1px solid rgba(255, 255, 255, 0.08);
}

.footer-bottom p {
  font-size: 0.82rem;
  color: var(--text-light);
  margin-bottom: 4px;
}

.footer-links {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  font-size: 0.82rem;
}

.footer-links a {
  color: var(--text-light);
  transition: color var(--transition-fast);
}

.footer-links a:hover {
  color: #fff;
}

.footer-links span {
  color: rgba(255, 255, 255, 0.3);
}

/* ========== Responsive ========== */
@media (max-width: 1024px) {
  .hero-grid {
    grid-template-columns: 1fr;
    gap: var(--spacing-xl);
  }
  .value-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .scenario-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .brand-grid {
    grid-template-columns: 1fr;
  }
  .pricing-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .feature-group-grid {
    grid-template-columns: 1fr;
  }
  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }
  .nav-links {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--bg-white);
    flex-direction: column;
    padding: var(--spacing-md) var(--spacing-lg);
    border-bottom: 1px solid var(--border);
    box-shadow: var(--shadow-lg);
    gap: 0;
  }
  .nav-links.open {
    display: flex;
  }
  .nav-links a {
    width: 100%;
    padding: 10px 14px;
    border-radius: var(--radius-sm);
  }
  .nav-toggle {
    display: flex;
  }
  .nav-status {
    display: none;
  }
}

@media (max-width: 768px) {
  .section {
    padding: var(--spacing-2xl) 0;
  }
  .hero-title {
    font-size: 2rem;
  }
  .hero-icon-matrix {
    grid-template-columns: repeat(2, 1fr);
    padding: var(--spacing-md);
  }
  .value-grid {
    grid-template-columns: 1fr;
  }
  .scenario-grid {
    grid-template-columns: 1fr;
  }
  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .pricing-grid {
    grid-template-columns: 1fr;
  }
  .footer-grid {
    grid-template-columns: 1fr;
    gap: var(--spacing-lg);
  }
  .footer-bottom {
    flex-direction: column;
    align-items: flex-start;
  }
  .section-heading h2 {
    font-size: 1.5rem;
  }
  .cta-content h2 {
    font-size: 1.7rem;
  }
  .hero-actions {
    flex-direction: column;
    align-items: flex-start;
  }
  .nav-toolbar {
    flex-wrap: wrap;
  }
}

@media (max-width: 520px) {
  .hero-title {
    font-size: 1.7rem;
  }
  .hero-icon-matrix {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-xs);
    padding: var(--spacing-sm);
  }
  .matrix-item {
    padding: var(--spacing-sm) var(--spacing-xs);
  }
  .matrix-item .matrix-icon {
    width: 32px;
    height: 32px;
    font-size: 1rem;
  }
  .stats-grid {
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-sm);
  }
  .stat-card .stat-num {
    font-size: 1.8rem;
  }
  .container {
    padding: 0 var(--spacing-md);
  }
  .section-heading h2 {
    font-size: 1.35rem;
  }
  .pricing-card {
    padding: var(--spacing-lg);
  }
  .nav-logo a {
    font-size: 1.1rem;
  }
  .btn-primary-nav {
    padding: 8px 14px;
    font-size: 0.8rem;
  }
  .hero-status-bar {
    padding: var(--spacing-sm) var(--spacing-md);
    flex-direction: column;
    align-items: flex-start;
  }
}

/* Focus visible for accessibility */
a:focus-visible,
button:focus-visible {
  outline: 3px solid rgba(26, 107, 255, 0.5);
  outline-offset: 2px;
}

/* roulang page: category7 */
:root {
            --primary: #1a6bff;
            --primary-dark: #0d4fc5;
            --primary-light: #e8f0ff;
            --primary-soft: #f2f7ff;
            --secondary: #0f9d8f;
            --secondary-light: #e8f7f5;
            --accent: #ff8a3d;
            --accent-light: #fff4ec;
            --bg-white: #ffffff;
            --bg-gray: #f6f8fb;
            --bg-dark: #0b1c3a;
            --bg-dark-light: #14294f;
            --text-primary: #1a1f36;
            --text-secondary: #4a5578;
            --text-muted: #7a86a8;
            --text-light: #9aa5c4;
            --border: #e8ecf4;
            --border-light: #f0f3f9;
            --radius-xs: 6px;
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 16px;
            --radius-xl: 20px;
            --radius-full: 999px;
            --shadow-sm: 0 2px 8px rgba(10, 25, 50, 0.05);
            --shadow-md: 0 4px 16px rgba(10, 25, 50, 0.08);
            --shadow-lg: 0 8px 32px rgba(10, 25, 50, 0.12);
            --shadow-xl: 0 16px 48px rgba(10, 25, 50, 0.16);
            --font-family: 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', Arial, sans-serif;
            --container-max: 1200px;
            --container-wide: 1320px;
            --transition-fast: 0.18s ease;
            --transition-normal: 0.28s ease;
            --transition-slow: 0.4s ease;
            --spacing-xs: 4px;
            --spacing-sm: 8px;
            --spacing-md: 16px;
            --spacing-lg: 24px;
            --spacing-xl: 32px;
            --spacing-2xl: 48px;
            --spacing-3xl: 64px;
            --spacing-4xl: 80px;
        }

        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }

        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        body {
            font-family: var(--font-family);
            font-size: 16px;
            line-height: 1.7;
            color: var(--text-primary);
            background-color: var(--bg-white);
            overflow-x: hidden;
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
        }

        a {
            text-decoration: none;
            color: inherit;
            transition: color var(--transition-fast);
        }

        button {
            font-family: inherit;
            cursor: pointer;
            border: none;
            background: none;
            transition: all var(--transition-fast);
        }

        input,
        textarea,
        select {
            font-family: inherit;
            font-size: inherit;
            outline: none;
            border: 1px solid var(--border);
            border-radius: var(--radius-sm);
            transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
        }

        input:focus,
        textarea:focus,
        select:focus {
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(26, 107, 255, 0.12);
        }

        .container {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 var(--spacing-lg);
        }

        .container-wide {
            max-width: var(--container-wide);
            margin: 0 auto;
            padding: 0 var(--spacing-lg);
        }

        /* ========== Header / Nav ========== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: rgba(255, 255, 255, 0.96);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid var(--border);
            box-shadow: var(--shadow-sm);
            transition: all var(--transition-normal);
        }

        .site-header.scrolled {
            box-shadow: var(--shadow-md);
            border-bottom-color: var(--border);
        }

        .nav-toolbar {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: var(--spacing-md);
            padding: var(--spacing-md) 0;
        }

        .nav-logo {
            display: flex;
            align-items: center;
            gap: var(--spacing-sm);
            flex-shrink: 0;
        }

        .nav-logo a {
            display: flex;
            align-items: center;
            gap: var(--spacing-sm);
            font-weight: 800;
            font-size: 1.35rem;
            color: var(--primary-dark);
            letter-spacing: -0.5px;
        }

        .nav-logo .logo-icon {
            width: 40px;
            height: 40px;
            border-radius: var(--radius-md);
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-weight: 900;
            font-size: 1.1rem;
            flex-shrink: 0;
            box-shadow: 0 4px 12px rgba(26, 107, 255, 0.3);
        }

        .nav-logo .logo-icon span {
            letter-spacing: -1px;
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 2px;
            flex: 1;
            justify-content: center;
            flex-wrap: wrap;
        }

        .nav-links a {
            display: flex;
            align-items: center;
            gap: 4px;
            padding: 8px 14px;
            font-size: 0.88rem;
            font-weight: 500;
            color: var(--text-secondary);
            border-radius: var(--radius-full);
            border: 1px solid transparent;
            white-space: nowrap;
            transition: all var(--transition-normal);
            position: relative;
        }

        .nav-links a:hover {
            color: var(--primary);
            background: var(--primary-soft);
            border-color: var(--primary-light);
        }

        .nav-links a.active {
            color: var(--primary);
            background: var(--primary-light);
            border-color: rgba(26, 107, 255, 0.2);
            font-weight: 600;
        }

        .nav-links a.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 50%;
            transform: translateX(-50%);
            width: 16px;
            height: 2px;
            border-radius: 2px;
            background: var(--primary);
        }

        .nav-links a:focus-visible,
        .btn-primary-nav:focus-visible,
        .nav-notify:focus-visible,
        .btn-outline:focus-visible,
        .btn-primary:focus-visible {
            outline: 3px solid rgba(26, 107, 255, 0.35);
            outline-offset: 2px;
        }

        .nav-actions {
            display: flex;
            align-items: center;
            gap: var(--spacing-md);
            flex-shrink: 0;
        }

        .nav-status {
            display: flex;
            align-items: center;
            gap: 6px;
            font-size: 0.8rem;
            color: var(--text-muted);
            background: var(--bg-gray);
            padding: 6px 12px;
            border-radius: var(--radius-full);
            white-space: nowrap;
        }

        .nav-status .dot {
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: #22c55e;
            animation: pulse-dot 2s infinite;
        }

        @keyframes pulse-dot {
            0%,
            100% {
                box-shadow: 0 0 0 0 rgba(34, 197, 94, 0.4);
            }
            50% {
                box-shadow: 0 0 0 6px rgba(34, 197, 94, 0);
            }
        }

        .nav-notify {
            position: relative;
            width: 38px;
            height: 38px;
            border-radius: 50%;
            background: var(--bg-gray);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--text-secondary);
            border: 1px solid var(--border);
            transition: all var(--transition-fast);
        }

        .nav-notify:hover {
            background: var(--primary-soft);
            color: var(--primary);
            border-color: var(--primary-light);
        }

        .badge-dot {
            position: absolute;
            top: 6px;
            right: 6px;
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: #ef4444;
            border: 1.5px solid #fff;
        }

        .btn-primary-nav {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 10px 20px;
            font-size: 0.88rem;
            font-weight: 600;
            color: #fff;
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
            border-radius: var(--radius-full);
            border: none;
            box-shadow: 0 4px 14px rgba(26, 107, 255, 0.35);
            white-space: nowrap;
            transition: all var(--transition-normal);
        }

        .btn-primary-nav:hover {
            box-shadow: 0 6px 22px rgba(26, 107, 255, 0.45);
            transform: translateY(-1px);
        }

        .btn-primary-nav:active {
            transform: translateY(0);
            box-shadow: 0 2px 8px rgba(26, 107, 255, 0.3);
        }

        .nav-toggle {
            display: none;
            flex-direction: column;
            gap: 4px;
            padding: 8px;
            border-radius: var(--radius-sm);
            border: 1px solid var(--border);
            background: var(--bg-white);
        }

        .nav-toggle .bar {
            width: 20px;
            height: 2px;
            border-radius: 2px;
            background: var(--text-primary);
            transition: all var(--transition-normal);
        }

        .nav-toggle.open .bar:nth-child(1) {
            transform: translateY(6px) rotate(45deg);
        }

        .nav-toggle.open .bar:nth-child(2) {
            opacity: 0;
        }

        .nav-toggle.open .bar:nth-child(3) {
            transform: translateY(-6px) rotate(-45deg);
        }

        /* ========== Buttons ========== */
        .btn-primary {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 14px 28px;
            font-size: 1rem;
            font-weight: 600;
            color: #fff;
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
            border-radius: var(--radius-full);
            border: none;
            box-shadow: 0 6px 20px rgba(26, 107, 255, 0.35);
            transition: all var(--transition-normal);
        }

        .btn-primary:hover {
            box-shadow: 0 10px 32px rgba(26, 107, 255, 0.45);
            transform: translateY(-2px);
        }

        .btn-primary:active {
            transform: translateY(0);
            box-shadow: 0 3px 10px rgba(26, 107, 255, 0.3);
        }

        .btn-outline {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 13px 26px;
            font-size: 0.95rem;
            font-weight: 600;
            color: var(--primary);
            background: var(--bg-white);
            border: 1.5px solid var(--primary);
            border-radius: var(--radius-full);
            transition: all var(--transition-normal);
        }

        .btn-outline:hover {
            background: var(--primary-soft);
            border-color: var(--primary-dark);
            color: var(--primary-dark);
            transform: translateY(-1px);
        }

        .btn-outline:active {
            transform: translateY(0);
        }

        .btn-light {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 13px 28px;
            font-size: 0.95rem;
            font-weight: 600;
            color: var(--primary-dark);
            background: #fff;
            border-radius: var(--radius-full);
            border: none;
            box-shadow: 0 4px 16px rgba(0, 0, 0, 0.12);
            transition: all var(--transition-normal);
        }

        .btn-light:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(0, 0, 0, 0.18);
        }

        .btn-sm {
            padding: 8px 16px;
            font-size: 0.82rem;
        }

        /* ========== Sections ========== */
        .section {
            padding: var(--spacing-3xl) 0;
        }

        .section-gray {
            background: var(--bg-gray);
        }

        .section-dark {
            background: var(--bg-dark);
            color: #fff;
        }

        .section-white {
            background: var(--bg-white);
        }

        .section-header {
            max-width: 720px;
            margin: 0 auto var(--spacing-2xl);
            text-align: center;
        }

        .section-header-left {
            max-width: 720px;
            margin: 0 0 var(--spacing-2xl);
            text-align: left;
        }

        .section-tag {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 0.82rem;
            font-weight: 600;
            color: var(--primary);
            background: var(--primary-light);
            padding: 6px 16px;
            border-radius: var(--radius-full);
            margin-bottom: var(--spacing-md);
        }

        .section-title {
            font-size: 2.2rem;
            font-weight: 800;
            color: var(--text-primary);
            letter-spacing: -0.5px;
            line-height: 1.3;
            margin-bottom: var(--spacing-md);
        }

        .section-dark .section-title {
            color: #fff;
        }

        .section-desc {
            font-size: 1.05rem;
            color: var(--text-secondary);
            line-height: 1.8;
        }

        .section-dark .section-desc {
            color: var(--text-light);
        }

        /* ========== Cards ========== */
        .card-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: var(--spacing-lg);
        }

        .card-grid-2 {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: var(--spacing-lg);
        }

        .card-grid-4 {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: var(--spacing-lg);
        }

        .card {
            background: var(--bg-white);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: var(--spacing-xl);
            box-shadow: var(--shadow-sm);
            transition: all var(--transition-normal);
            position: relative;
            overflow: hidden;
        }

        .card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-4px);
            border-color: rgba(26, 107, 255, 0.2);
        }

        .card-icon {
            width: 52px;
            height: 52px;
            border-radius: var(--radius-md);
            background: var(--primary-light);
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: var(--spacing-md);
            font-size: 1.4rem;
            color: var(--primary);
            flex-shrink: 0;
        }

        .card-icon.green {
            background: var(--secondary-light);
            color: var(--secondary);
        }

        .card-icon.orange {
            background: var(--accent-light);
            color: var(--accent);
        }

        .card-title {
            font-size: 1.15rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: var(--spacing-sm);
        }

        .card-desc {
            font-size: 0.92rem;
            color: var(--text-secondary);
            line-height: 1.7;
        }

        /* ========== Tags / Badges ========== */
        .badge {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            font-size: 0.78rem;
            font-weight: 600;
            padding: 4px 12px;
            border-radius: var(--radius-full);
            background: var(--bg-gray);
            color: var(--text-secondary);
        }

        .badge-blue {
            background: var(--primary-light);
            color: var(--primary);
        }

        .badge-green {
            background: var(--secondary-light);
            color: var(--secondary);
        }

        .badge-orange {
            background: var(--accent-light);
            color: var(--accent);
        }

        /* ========== Lists ========== */
        .check-list {
            list-style: none;
            padding: 0;
        }

        .check-list li {
            display: flex;
            align-items: flex-start;
            gap: var(--spacing-sm);
            padding: var(--spacing-sm) 0;
            font-size: 0.95rem;
            color: var(--text-secondary);
            line-height: 1.7;
        }

        .check-list li::before {
            content: '✓';
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 20px;
            height: 20px;
            border-radius: 50%;
            background: var(--secondary-light);
            color: var(--secondary);
            font-size: 0.75rem;
            font-weight: 700;
            flex-shrink: 0;
            margin-top: 3px;
        }

        /* ========== FAQ ========== */
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
        }

        .faq-item {
            background: var(--bg-white);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            margin-bottom: var(--spacing-md);
            overflow: hidden;
            transition: all var(--transition-normal);
        }

        .faq-item:hover {
            border-color: rgba(26, 107, 255, 0.3);
            box-shadow: var(--shadow-sm);
        }

        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: var(--spacing-md);
            padding: var(--spacing-lg) var(--spacing-xl);
            font-size: 1rem;
            font-weight: 600;
            color: var(--text-primary);
            cursor: pointer;
            background: none;
            border: none;
            width: 100%;
            text-align: left;
            transition: all var(--transition-fast);
        }

        .faq-question:hover {
            color: var(--primary);
        }

        .faq-question .faq-icon {
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background: var(--primary-light);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--primary);
            font-size: 1.2rem;
            flex-shrink: 0;
            transition: all var(--transition-normal);
        }

        .faq-item.open .faq-question .faq-icon {
            transform: rotate(45deg);
            background: var(--primary);
            color: #fff;
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height var(--transition-slow), padding var(--transition-slow);
            padding: 0 var(--spacing-xl);
        }

        .faq-item.open .faq-answer {
            max-height: 500px;
            padding: 0 var(--spacing-xl) var(--spacing-lg);
        }

        .faq-answer p {
            font-size: 0.92rem;
            color: var(--text-secondary);
            line-height: 1.8;
        }

        /* ========== CTA ========== */
        .cta-section {
            background: linear-gradient(135deg, var(--bg-dark) 0%, var(--bg-dark-light) 60%, #1a3a6b 100%);
            border-radius: var(--radius-xl);
            padding: var(--spacing-3xl);
            text-align: center;
            color: #fff;
            position: relative;
            overflow: hidden;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            top: -60%;
            right: -20%;
            width: 500px;
            height: 500px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(26, 107, 255, 0.25) 0%, transparent 70%);
            pointer-events: none;
        }

        .cta-section::after {
            content: '';
            position: absolute;
            bottom: -50%;
            left: -10%;
            width: 400px;
            height: 400px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(15, 157, 143, 0.2) 0%, transparent 70%);
            pointer-events: none;
        }

        .cta-content {
            position: relative;
            z-index: 1;
        }

        .cta-title {
            font-size: 2rem;
            font-weight: 800;
            color: #fff;
            margin-bottom: var(--spacing-md);
            letter-spacing: -0.5px;
        }

        .cta-desc {
            font-size: 1.05rem;
            color: var(--text-light);
            line-height: 1.8;
            max-width: 600px;
            margin: 0 auto var(--spacing-xl);
        }

        .cta-buttons {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: var(--spacing-md);
            flex-wrap: wrap;
        }

        /* ========== Footer ========== */
        .site-footer {
            background: var(--bg-dark);
            color: var(--text-light);
            padding: var(--spacing-3xl) 0 var(--spacing-xl);
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: var(--spacing-2xl);
            margin-bottom: var(--spacing-2xl);
        }

        .footer-brand .footer-logo {
            display: flex;
            align-items: center;
            gap: var(--spacing-sm);
            font-size: 1.4rem;
            font-weight: 800;
            color: #fff;
            margin-bottom: var(--spacing-md);
        }

        .footer-brand .footer-logo .logo-icon {
            width: 40px;
            height: 40px;
            border-radius: var(--radius-md);
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-weight: 900;
            font-size: 1.1rem;
        }

        .footer-brand p {
            font-size: 0.9rem;
            line-height: 1.8;
            color: var(--text-light);
            max-width: 360px;
        }

        .footer-col h4 {
            font-size: 1rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: var(--spacing-md);
        }

        .footer-col ul {
            list-style: none;
            padding: 0;
        }

        .footer-col ul li {
            margin-bottom: var(--spacing-sm);
        }

        .footer-col ul li a {
            font-size: 0.9rem;
            color: var(--text-light);
            transition: all var(--transition-fast);
        }

        .footer-col ul li a:hover {
            color: #fff;
            padding-left: 4px;
        }

        .footer-bottom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: var(--spacing-lg);
            padding-top: var(--spacing-xl);
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            flex-wrap: wrap;
        }

        .footer-bottom p {
            font-size: 0.82rem;
            color: var(--text-light);
            margin-bottom: 4px;
        }

        .footer-links {
            display: flex;
            align-items: center;
            gap: var(--spacing-md);
            font-size: 0.85rem;
            color: var(--text-light);
        }

        .footer-links a {
            color: var(--text-light);
            transition: color var(--transition-fast);
        }

        .footer-links a:hover {
            color: #fff;
        }

        .footer-links span {
            opacity: 0.5;
        }

        /* ========== Hero Section ========== */
        .page-hero {
            position: relative;
            background: linear-gradient(180deg, var(--bg-dark) 0%, #0f2547 50%, #16325c 100%);
            padding: var(--spacing-4xl) 0;
            overflow: hidden;
        }

        .page-hero::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background-image: url('/assets/images/backpic/back-2.webp');
            background-size: cover;
            background-position: center;
            opacity: 0.15;
            pointer-events: none;
        }

        .page-hero::after {
            content: '';
            position: absolute;
            top: -40%;
            right: -10%;
            width: 600px;
            height: 600px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(26, 107, 255, 0.3) 0%, transparent 70%);
            pointer-events: none;
        }

        .hero-content-wrapper {
            position: relative;
            z-index: 2;
            display: grid;
            grid-template-columns: 1.2fr 0.8fr;
            gap: var(--spacing-3xl);
            align-items: center;
        }

        .hero-tag {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 0.85rem;
            font-weight: 600;
            color: #ffd700;
            background: rgba(255, 215, 0, 0.12);
            border: 1px solid rgba(255, 215, 0, 0.3);
            padding: 8px 18px;
            border-radius: var(--radius-full);
            margin-bottom: var(--spacing-lg);
        }

        .hero-tag .spark {
            display: inline-block;
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: #ffd700;
            animation: spark-pulse 1.5s infinite;
        }

        @keyframes spark-pulse {
            0%,
            100% {
                box-shadow: 0 0 0 0 rgba(255, 215, 0, 0.5);
            }
            50% {
                box-shadow: 0 0 0 8px rgba(255, 215, 0, 0);
            }
        }

        .hero-title {
            font-size: 3rem;
            font-weight: 900;
            color: #fff;
            letter-spacing: -1px;
            line-height: 1.2;
            margin-bottom: var(--spacing-lg);
            text-shadow: 0 2px 20px rgba(0, 0, 0, 0.3);
        }

        .hero-desc {
            font-size: 1.1rem;
            color: var(--text-light);
            line-height: 1.9;
            max-width: 560px;
            margin-bottom: var(--spacing-xl);
        }

        .hero-buttons {
            display: flex;
            align-items: center;
            gap: var(--spacing-md);
            flex-wrap: wrap;
            margin-bottom: var(--spacing-xl);
        }

        .hero-stats-row {
            display: flex;
            gap: var(--spacing-2xl);
            flex-wrap: wrap;
        }

        .hero-stat {
            display: flex;
            flex-direction: column;
            gap: 2px;
        }

        .hero-stat .stat-num {
            font-size: 1.8rem;
            font-weight: 800;
            color: #fff;
            letter-spacing: -0.5px;
        }

        .hero-stat .stat-label {
            font-size: 0.82rem;
            color: var(--text-light);
        }

        .hero-panel {
            background: rgba(255, 255, 255, 0.08);
            border: 1px solid rgba(255, 255, 255, 0.15);
            border-radius: var(--radius-xl);
            padding: var(--spacing-2xl);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            box-shadow: 0 16px 48px rgba(0, 0, 0, 0.3);
        }

        .hero-panel-title {
            font-size: 1.1rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: var(--spacing-lg);
            text-align: center;
        }

        .tool-preview-list {
            list-style: none;
            padding: 0;
        }

        .tool-preview-list li {
            display: flex;
            align-items: center;
            gap: var(--spacing-md);
            padding: var(--spacing-md);
            border-radius: var(--radius-md);
            background: rgba(255, 255, 255, 0.05);
            margin-bottom: var(--spacing-sm);
            transition: all var(--transition-fast);
        }

        .tool-preview-list li:hover {
            background: rgba(255, 255, 255, 0.1);
        }

        .tool-preview-list .tp-icon {
            width: 36px;
            height: 36px;
            border-radius: var(--radius-sm);
            background: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 0.9rem;
            flex-shrink: 0;
        }

        .tool-preview-list .tp-info {
            flex: 1;
        }

        .tool-preview-list .tp-name {
            font-size: 0.9rem;
            font-weight: 600;
            color: #fff;
            display: block;
        }

        .tool-preview-list .tp-ver {
            font-size: 0.78rem;
            color: var(--text-light);
        }

        .tool-preview-list .tp-dl {
            font-size: 0.78rem;
            color: #ffd700;
            font-weight: 600;
            white-space: nowrap;
        }

        /* ========== Tool Features ========== */
        .features-section {
            background: var(--bg-white);
        }

        .feature-highlight-card {
            background: var(--bg-white);
            border: 1px solid var(--border);
            border-radius: var(--radius-xl);
            padding: var(--spacing-2xl);
            box-shadow: var(--shadow-md);
            transition: all var(--transition-normal);
            position: relative;
            overflow: hidden;
        }

        .feature-highlight-card:hover {
            box-shadow: var(--shadow-xl);
            transform: translateY(-3px);
        }

        .feature-highlight-card .fh-badge {
            position: absolute;
            top: var(--spacing-lg);
            right: var(--spacing-lg);
        }

        .feature-highlight-card .fh-title {
            font-size: 1.5rem;
            font-weight: 800;
            color: var(--text-primary);
            margin-bottom: var(--spacing-md);
            letter-spacing: -0.5px;
        }

        .feature-highlight-card .fh-desc {
            font-size: 0.95rem;
            color: var(--text-secondary);
            line-height: 1.8;
            margin-bottom: var(--spacing-lg);
        }

        .feature-highlight-card .fh-meta {
            display: flex;
            gap: var(--spacing-lg);
            flex-wrap: wrap;
            margin-top: var(--spacing-md);
        }

        .feature-highlight-card .fh-meta-item {
            display: flex;
            align-items: center;
            gap: 6px;
            font-size: 0.85rem;
            color: var(--text-muted);
        }

        /* ========== Data Tools Grid ========== */
        .tools-showcase {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: var(--spacing-lg);
        }

        .tool-detail-card {
            background: var(--bg-white);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: all var(--transition-normal);
            display: flex;
            flex-direction: column;
        }

        .tool-detail-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-4px);
            border-color: rgba(26, 107, 255, 0.25);
        }

        .tool-detail-card .td-img-wrap {
            position: relative;
            aspect-ratio: 16/10;
            overflow: hidden;
            background: var(--bg-gray);
        }

        .tool-detail-card .td-img-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform var(--transition-slow);
        }

        .tool-detail-card:hover .td-img-wrap img {
            transform: scale(1.05);
        }

        .tool-detail-card .td-badge {
            position: absolute;
            top: var(--spacing-sm);
            left: var(--spacing-sm);
            z-index: 2;
        }

        .tool-detail-card .td-body {
            padding: var(--spacing-xl);
            flex: 1;
            display: flex;
            flex-direction: column;
        }

        .tool-detail-card .td-title {
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: var(--spacing-sm);
        }

        .tool-detail-card .td-desc {
            font-size: 0.9rem;
            color: var(--text-secondary);
            line-height: 1.7;
            margin-bottom: var(--spacing-lg);
            flex: 1;
        }

        .tool-detail-card .td-footer {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: var(--spacing-sm);
            padding-top: var(--spacing-md);
            border-top: 1px solid var(--border-light);
        }

        .tool-detail-card .td-version {
            font-size: 0.8rem;
            color: var(--text-muted);
        }

        /* ========== Usage Scenarios ========== */
        .scenario-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: var(--spacing-xl);
        }

        .scenario-item {
            display: flex;
            gap: var(--spacing-lg);
            padding: var(--spacing-xl);
            background: var(--bg-white);
            border-radius: var(--radius-lg);
            border: 1px solid var(--border);
            box-shadow: var(--shadow-sm);
            transition: all var(--transition-normal);
        }

        .scenario-item:hover {
            box-shadow: var(--shadow-md);
            border-color: rgba(26, 107, 255, 0.2);
            transform: translateX(4px);
        }

        .scenario-item .sc-icon {
            width: 56px;
            height: 56px;
            border-radius: var(--radius-md);
            background: var(--primary-light);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.5rem;
            color: var(--primary);
            flex-shrink: 0;
        }

        .scenario-item .sc-icon.green {
            background: var(--secondary-light);
            color: var(--secondary);
        }

        .scenario-item .sc-icon.orange {
            background: var(--accent-light);
            color: var(--accent);
        }

        .scenario-item .sc-content h4 {
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: var(--spacing-sm);
        }

        .scenario-item .sc-content p {
            font-size: 0.92rem;
            color: var(--text-secondary);
            line-height: 1.7;
        }

        /* ========== Stats Bar ========== */
        .stats-bar {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: var(--spacing-lg);
        }

        .stat-item {
            text-align: center;
            padding: var(--spacing-xl);
            background: rgba(255, 255, 255, 0.06);
            border-radius: var(--radius-lg);
            border: 1px solid rgba(255, 255, 255, 0.1);
            transition: all var(--transition-normal);
        }

        .stat-item:hover {
            background: rgba(255, 255, 255, 0.1);
            transform: translateY(-2px);
        }

        .stat-item .si-num {
            font-size: 2.5rem;
            font-weight: 900;
            color: #fff;
            letter-spacing: -1px;
            margin-bottom: var(--spacing-xs);
        }

        .stat-item .si-label {
            font-size: 0.9rem;
            color: var(--text-light);
        }

        /* ========== Process Steps ========== */
        .process-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: var(--spacing-lg);
        }

        .process-step {
            text-align: center;
            padding: var(--spacing-xl);
            position: relative;
        }

        .process-step .ps-number {
            width: 56px;
            height: 56px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
            color: #fff;
            font-size: 1.4rem;
            font-weight: 800;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto var(--spacing-md);
            box-shadow: 0 6px 20px rgba(26, 107, 255, 0.35);
            position: relative;
            z-index: 2;
        }

        .process-step .ps-title {
            font-size: 1.05rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: var(--spacing-xs);
        }

        .process-step .ps-desc {
            font-size: 0.88rem;
            color: var(--text-secondary);
            line-height: 1.6;
        }

        .process-step:not(:last-child)::after {
            content: '';
            position: absolute;
            top: 28px;
            right: -50%;
            width: 100%;
            height: 2px;
            background: linear-gradient(90deg, var(--primary-light) 0%, var(--primary) 50%, var(--primary-light) 100%);
            z-index: 1;
        }

        /* ========== Testimonial ========== */
        .testimonial-card {
            background: var(--bg-white);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: var(--spacing-xl);
            box-shadow: var(--shadow-sm);
            transition: all var(--transition-normal);
        }

        .testimonial-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-2px);
        }

        .testimonial-card .tc-quote {
            font-size: 0.95rem;
            color: var(--text-secondary);
            line-height: 1.8;
            margin-bottom: var(--spacing-lg);
            font-style: italic;
        }

        .testimonial-card .tc-author {
            display: flex;
            align-items: center;
            gap: var(--spacing-md);
        }

        .testimonial-card .tc-avatar {
            width: 44px;
            height: 44px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-weight: 700;
            font-size: 1rem;
            flex-shrink: 0;
        }

        .testimonial-card .tc-info .tc-name {
            font-size: 0.92rem;
            font-weight: 700;
            color: var(--text-primary);
        }

        .testimonial-card .tc-info .tc-role {
            font-size: 0.82rem;
            color: var(--text-muted);
        }

        /* ========== Responsive ========== */
        @media (max-width: 1024px) {
            .hero-content-wrapper {
                grid-template-columns: 1fr;
                gap: var(--spacing-2xl);
            }

            .hero-title {
                font-size: 2.4rem;
            }

            .card-grid {
                grid-template-columns: repeat(2, 1fr);
            }

            .card-grid-4 {
                grid-template-columns: repeat(2, 1fr);
            }

            .tools-showcase {
                grid-template-columns: repeat(2, 1fr);
            }

            .process-grid {
                grid-template-columns: repeat(2, 1fr);
            }

            .process-step:not(:last-child)::after {
                display: none;
            }

            .stats-bar {
                grid-template-columns: repeat(2, 1fr);
            }

            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }

            .nav-status {
                display: none;
            }

            .nav-links {
                gap: 0;
            }

            .nav-links a {
                padding: 8px 10px;
                font-size: 0.82rem;
            }
        }

        @media (max-width: 768px) {
            .nav-toggle {
                display: flex;
            }

            .nav-links {
                display: none;
                position: absolute;
                top: 100%;
                left: 0;
                right: 0;
                background: var(--bg-white);
                flex-direction: column;
                padding: var(--spacing-lg);
                border-bottom: 1px solid var(--border);
                box-shadow: var(--shadow-lg);
                gap: 4px;
                z-index: 100;
            }

            .nav-links.open {
                display: flex;
            }

            .nav-links a {
                width: 100%;
                padding: 12px 16px;
                font-size: 0.9rem;
                border-radius: var(--radius-sm);
            }

            .nav-links a.active::after {
                display: none;
            }

            .nav-actions {
                gap: var(--spacing-sm);
            }

            .btn-primary-nav {
                padding: 8px 14px;
                font-size: 0.8rem;
            }

            .hero-title {
                font-size: 1.9rem;
            }

            .hero-desc {
                font-size: 0.98rem;
            }

            .section {
                padding: var(--spacing-2xl) 0;
            }

            .section-title {
                font-size: 1.7rem;
            }

            .card-grid,
            .card-grid-2,
            .card-grid-4,
            .tools-showcase,
            .stats-bar,
            .process-grid,
            .scenario-grid {
                grid-template-columns: 1fr;
            }

            .footer-grid {
                grid-template-columns: 1fr;
            }

            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }

            .footer-links {
                flex-wrap: wrap;
                justify-content: center;
            }

            .cta-section {
                padding: var(--spacing-xl);
            }

            .cta-title {
                font-size: 1.5rem;
            }

            .hero-stats-row {
                gap: var(--spacing-lg);
            }

            .hero-stat .stat-num {
                font-size: 1.4rem;
            }

            .page-hero {
                padding: var(--spacing-3xl) 0;
            }

            .hero-panel {
                padding: var(--spacing-lg);
            }
        }

        @media (max-width: 520px) {
            .container {
                padding: 0 var(--spacing-md);
            }

            .hero-title {
                font-size: 1.6rem;
            }

            .section-title {
                font-size: 1.4rem;
            }

            .btn-primary,
            .btn-outline,
            .btn-light {
                padding: 11px 20px;
                font-size: 0.88rem;
            }

            .hero-buttons {
                flex-direction: column;
                align-items: stretch;
            }

            .hero-buttons .btn-primary,
            .hero-buttons .btn-outline {
                justify-content: center;
            }

            .cta-buttons {
                flex-direction: column;
                align-items: stretch;
            }

            .cta-buttons .btn-primary,
            .cta-buttons .btn-light {
                justify-content: center;
            }

            .card {
                padding: var(--spacing-lg);
            }

            .faq-question {
                padding: var(--spacing-md);
                font-size: 0.9rem;
            }

            .faq-answer {
                padding: 0 var(--spacing-md);
            }

            .faq-item.open .faq-answer {
                padding: 0 var(--spacing-md) var(--spacing-md);
            }

            .section-header {
                margin-bottom: var(--spacing-xl);
            }

            .tool-detail-card .td-body {
                padding: var(--spacing-lg);
            }

            .testimonial-card {
                padding: var(--spacing-lg);
            }

            .scenario-item {
                flex-direction: column;
                padding: var(--spacing-lg);
            }

            .nav-actions .nav-notify {
                width: 34px;
                height: 34px;
            }
        }