/* roulang page: index */
:root {
            --bg-deep: #080d1a;
            --bg-sidebar: #0b1121;
            --bg-surface: #111827;
            --bg-card: #151d30;
            --bg-card-hover: #1a2540;
            --bg-input: #0f1a2e;
            --text-primary: #e8ecf4;
            --text-secondary: #94a3b8;
            --text-muted: #5e6d82;
            --accent-cyan: #00c6f2;
            --accent-cyan-glow: rgba(0,198,242,0.25);
            --accent-purple: #7c5ce7;
            --accent-green: #0ce9a3;
            --accent-amber: #f59e0b;
            --accent-red: #ef4444;
            --border-subtle: rgba(255,255,255,0.06);
            --border-card: rgba(255,255,255,0.08);
            --border-active: rgba(0,198,242,0.4);
            --radius-sm: 6px;
            --radius-md: 10px;
            --radius-lg: 16px;
            --radius-xl: 20px;
            --radius-2xl: 24px;
            --shadow-sm: 0 1px 3px rgba(0,0,0,0.3);
            --shadow-md: 0 4px 16px rgba(0,0,0,0.4);
            --shadow-lg: 0 8px 32px rgba(0,0,0,0.5);
            --shadow-glow: 0 0 30px rgba(0,198,242,0.15);
            --sidebar-width: 240px;
            --topbar-height: 56px;
            --transition-fast: 0.15s ease;
            --transition-smooth: 0.25s ease;
            --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
        }

        *,
        *::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);
            background: var(--bg-deep);
            color: var(--text-primary);
            line-height: 1.6;
            min-height: 100vh;
            display: flex;
            flex-direction: column;
        }

        a {
            text-decoration: none;
            color: inherit;
            transition: color var(--transition-fast);
        }
        a:hover {
            color: var(--accent-cyan);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        button {
            cursor: pointer;
            font-family: inherit;
            border: none;
            outline: none;
        }
        button:focus-visible,
        a:focus-visible,
        input:focus-visible {
            outline: 2px solid var(--accent-cyan);
            outline-offset: 3px;
            border-radius: var(--radius-sm);
        }
        ul {
            list-style: none;
        }
        input {
            font-family: inherit;
        }

        /* ===== App Shell Layout ===== */
        .app-wrapper {
            display: flex;
            min-height: 100vh;
        }

        /* ===== Sidebar Navigation ===== */
        .sidebar {
            position: fixed;
            top: 0;
            left: 0;
            width: var(--sidebar-width);
            height: 100vh;
            background: var(--bg-sidebar);
            border-right: 1px solid var(--border-subtle);
            display: flex;
            flex-direction: column;
            z-index: 100;
            transition: transform var(--transition-smooth);
            overflow-y: auto;
            overflow-x: hidden;
        }
        .sidebar-brand {
            padding: 24px 20px 20px;
            border-bottom: 1px solid var(--border-subtle);
            flex-shrink: 0;
        }
        .sidebar-brand .logo-link {
            display: flex;
            align-items: center;
            gap: 10px;
            font-weight: 800;
            font-size: 1.15rem;
            color: var(--text-primary);
            letter-spacing: 0.02em;
        }
        .sidebar-brand .logo-icon {
            width: 36px;
            height: 36px;
            border-radius: var(--radius-md);
            background: linear-gradient(135deg, var(--accent-cyan), var(--accent-purple));
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.2rem;
            color: #fff;
            flex-shrink: 0;
        }
        .sidebar-nav {
            flex: 1;
            padding: 16px 12px;
            display: flex;
            flex-direction: column;
            gap: 4px;
        }
        .sidebar-nav .nav-section-label {
            font-size: 0.7rem;
            text-transform: uppercase;
            letter-spacing: 0.08em;
            color: var(--text-muted);
            padding: 12px 12px 6px;
            font-weight: 600;
        }
        .sidebar-nav a {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 11px 14px;
            border-radius: var(--radius-md);
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--text-secondary);
            transition: all var(--transition-fast);
            position: relative;
        }
        .sidebar-nav a i {
            width: 18px;
            text-align: center;
            font-size: 0.95rem;
            flex-shrink: 0;
        }
        .sidebar-nav a:hover {
            background: var(--bg-card);
            color: var(--text-primary);
        }
        .sidebar-nav a.active {
            background: var(--bg-card);
            color: var(--accent-cyan);
            font-weight: 600;
            box-shadow: inset 3px 0 0 var(--accent-cyan);
        }
        .sidebar-nav a.active::before {
            content: '';
            position: absolute;
            left: 0;
            top: 8px;
            bottom: 8px;
            width: 3px;
            background: var(--accent-cyan);
            border-radius: 0 3px 3px 0;
        }
        .sidebar-nav a .badge-pulse {
            margin-left: auto;
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: var(--accent-green);
            box-shadow: 0 0 8px var(--accent-green);
            animation: pulse-dot 2s infinite;
        }
        @keyframes pulse-dot {
            0%, 100% { opacity: 1; transform: scale(1); }
            50% { opacity: 0.5; transform: scale(1.6); }
        }
        .sidebar-footer {
            padding: 16px 20px;
            border-top: 1px solid var(--border-subtle);
            flex-shrink: 0;
        }
        .sidebar-footer .status-indicator {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 0.78rem;
            color: var(--text-muted);
        }
        .sidebar-footer .status-dot {
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: var(--accent-green);
            box-shadow: 0 0 10px rgba(12,233,163,0.5);
            animation: pulse-dot 3s infinite;
        }

        /* ===== Main Content Area ===== */
        .main-content {
            margin-left: var(--sidebar-width);
            flex: 1;
            min-width: 0;
            display: flex;
            flex-direction: column;
        }

        /* ===== Mobile Top Bar ===== */
        .mobile-topbar {
            display: none;
            position: sticky;
            top: 0;
            z-index: 99;
            background: var(--bg-sidebar);
            border-bottom: 1px solid var(--border-subtle);
            padding: 0 16px;
            height: var(--topbar-height);
            align-items: center;
            justify-content: space-between;
        }
        .mobile-topbar .mobile-logo {
            font-weight: 800;
            font-size: 1rem;
            color: var(--text-primary);
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .mobile-topbar .mobile-logo .logo-icon-sm {
            width: 28px;
            height: 28px;
            border-radius: var(--radius-sm);
            background: linear-gradient(135deg, var(--accent-cyan), var(--accent-purple));
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 0.85rem;
            color: #fff;
        }
        .hamburger-btn {
            background: transparent;
            color: var(--text-primary);
            font-size: 1.4rem;
            padding: 6px;
            border-radius: var(--radius-sm);
            transition: background var(--transition-fast);
            width: 40px;
            height: 40px;
            display: flex;
            align-items: center;
            justify-content: center;
        }
        .hamburger-btn:hover {
            background: var(--bg-card);
        }

        /* Sidebar overlay for mobile */
        .sidebar-overlay {
            display: none;
            position: fixed;
            inset: 0;
            background: rgba(0,0,0,0.6);
            z-index: 99;
            opacity: 0;
            transition: opacity var(--transition-smooth);
        }
        .sidebar-overlay.active {
            opacity: 1;
        }

        /* ===== Container ===== */
        .container {
            max-width: 1100px;
            margin: 0 auto;
            padding: 0 28px;
        }
        .container-wide {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 28px;
        }

        /* ===== Section Spacing ===== */
        .section {
            padding: 60px 0;
        }
        .section-sm {
            padding: 40px 0;
        }
        .section-lg {
            padding: 80px 0;
        }
        .section-header {
            margin-bottom: 40px;
            text-align: center;
        }
        .section-header h2 {
            font-size: 2rem;
            font-weight: 800;
            letter-spacing: -0.02em;
            color: var(--text-primary);
            margin-bottom: 10px;
        }
        .section-header .section-subtitle {
            color: var(--text-secondary);
            font-size: 0.95rem;
            max-width: 500px;
            margin: 0 auto;
        }
        .section-label {
            display: inline-block;
            font-size: 0.78rem;
            font-weight: 700;
            text-transform: uppercase;
            letter-spacing: 0.1em;
            color: var(--accent-cyan);
            margin-bottom: 8px;
        }

        /* ===== Hero Section ===== */
        .hero {
            position: relative;
            padding: 80px 0 70px;
            background: var(--bg-sidebar);
            overflow: hidden;
            border-bottom: 1px solid var(--border-subtle);
        }
        .hero-bg {
            position: absolute;
            inset: 0;
            background-image: url('/assets/images/backpic/back-1.png');
            background-size: cover;
            background-position: center;
            opacity: 0.18;
            pointer-events: none;
        }
        .hero-glow-top {
            position: absolute;
            top: -80px;
            right: -60px;
            width: 400px;
            height: 400px;
            background: radial-gradient(circle, var(--accent-cyan-glow) 0%, transparent 70%);
            pointer-events: none;
        }
        .hero-glow-bottom {
            position: absolute;
            bottom: -60px;
            left: -40px;
            width: 300px;
            height: 300px;
            background: radial-gradient(circle, rgba(124,92,231,0.18) 0%, transparent 70%);
            pointer-events: none;
        }
        .hero .container {
            position: relative;
            z-index: 2;
            display: flex;
            align-items: center;
            gap: 50px;
            flex-wrap: wrap;
        }
        .hero-text {
            flex: 1;
            min-width: 280px;
        }
        .hero-text .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: var(--bg-card);
            border: 1px solid var(--border-card);
            border-radius: 50px;
            padding: 6px 16px;
            font-size: 0.8rem;
            font-weight: 600;
            color: var(--accent-cyan);
            margin-bottom: 20px;
        }
        .hero-text .hero-badge .live-dot {
            width: 7px;
            height: 7px;
            border-radius: 50%;
            background: var(--accent-green);
            box-shadow: 0 0 6px var(--accent-green);
            animation: pulse-dot 2s infinite;
        }
        .hero-text h1 {
            font-size: 2.8rem;
            font-weight: 900;
            letter-spacing: -0.03em;
            line-height: 1.15;
            color: var(--text-primary);
            margin-bottom: 16px;
        }
        .hero-text h1 .highlight {
            background: linear-gradient(135deg, var(--accent-cyan), var(--accent-purple));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .hero-text p {
            font-size: 1.05rem;
            color: var(--text-secondary);
            max-width: 480px;
            margin-bottom: 28px;
            line-height: 1.7;
        }
        .hero-actions {
            display: flex;
            gap: 12px;
            flex-wrap: wrap;
        }
        .btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 24px;
            border-radius: 50px;
            font-weight: 600;
            font-size: 0.9rem;
            transition: all var(--transition-smooth);
            text-align: center;
            white-space: nowrap;
        }
        .btn-primary {
            background: linear-gradient(135deg, var(--accent-cyan), #0098c7);
            color: #fff;
            box-shadow: 0 4px 20px rgba(0,198,242,0.35);
        }
        .btn-primary:hover {
            box-shadow: 0 6px 28px rgba(0,198,242,0.5);
            transform: translateY(-2px);
            color: #fff;
        }
        .btn-outline {
            background: transparent;
            border: 1px solid var(--border-card);
            color: var(--text-primary);
        }
        .btn-outline:hover {
            border-color: var(--accent-cyan);
            color: var(--accent-cyan);
            background: rgba(0,198,242,0.05);
        }
        .btn-sm {
            padding: 8px 16px;
            font-size: 0.8rem;
            border-radius: 30px;
        }
        .hero-visual {
            flex: 0 0 340px;
            min-width: 260px;
            position: relative;
        }
        .hero-visual .hero-card-stack {
            position: relative;
            height: 300px;
        }
        .hero-visual .floating-card {
            position: absolute;
            background: var(--bg-card);
            border: 1px solid var(--border-card);
            border-radius: var(--radius-lg);
            padding: 16px 20px;
            box-shadow: var(--shadow-lg);
        }
        .hero-visual .floating-card.card-top {
            top: 0;
            right: 10px;
            width: 240px;
            z-index: 3;
        }
        .hero-visual .floating-card.card-mid {
            top: 70px;
            right: 50px;
            width: 200px;
            z-index: 2;
            opacity: 0.85;
        }
        .hero-visual .floating-card.card-bottom {
            top: 140px;
            right: 20px;
            width: 220px;
            z-index: 1;
            opacity: 0.7;
        }
        .hero-visual .stat-row {
            display: flex;
            justify-content: space-between;
            align-items: center;
            font-size: 0.8rem;
        }
        .hero-visual .stat-val {
            font-weight: 700;
            font-size: 1.3rem;
            color: var(--accent-cyan);
        }
        .hero-visual .stat-label {
            color: var(--text-muted);
            font-size: 0.7rem;
        }

        /* ===== Stats Bar ===== */
        .stats-bar {
            background: var(--bg-surface);
            border-bottom: 1px solid var(--border-subtle);
            padding: 0;
        }
        .stats-bar .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
        }
        .stats-bar .stat-item {
            padding: 22px 20px;
            text-align: center;
            border-right: 1px solid var(--border-subtle);
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 4px;
        }
        .stats-bar .stat-item:last-child {
            border-right: none;
        }
        .stats-bar .stat-number {
            font-size: 1.8rem;
            font-weight: 800;
            letter-spacing: -0.02em;
            color: var(--accent-cyan);
        }
        .stats-bar .stat-desc {
            font-size: 0.78rem;
            color: var(--text-muted);
        }

        /* ===== Category Cards ===== */
        .category-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
            gap: 20px;
        }
        .category-card {
            background: var(--bg-card);
            border: 1px solid var(--border-card);
            border-radius: var(--radius-lg);
            overflow: hidden;
            transition: all var(--transition-smooth);
            display: flex;
            flex-direction: column;
        }
        .category-card:hover {
            border-color: var(--border-active);
            box-shadow: var(--shadow-glow);
            transform: translateY(-3px);
        }
        .category-card .card-img-wrap {
            height: 170px;
            overflow: hidden;
            position: relative;
        }
        .category-card .card-img-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.4s ease;
        }
        .category-card:hover .card-img-wrap img {
            transform: scale(1.06);
        }
        .category-card .card-img-wrap .card-img-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(to top, rgba(8,13,26,0.7) 0%, transparent 50%);
        }
        .category-card .card-body {
            padding: 20px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .category-card .card-body h3 {
            font-size: 1.1rem;
            font-weight: 700;
            margin-bottom: 6px;
        }
        .category-card .card-body p {
            font-size: 0.85rem;
            color: var(--text-secondary);
            line-height: 1.55;
            flex: 1;
        }
        .category-card .card-footer-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            margin-top: 14px;
            font-weight: 600;
            font-size: 0.85rem;
            color: var(--accent-cyan);
        }
        .category-card .card-footer-link i {
            transition: transform var(--transition-fast);
        }
        .category-card:hover .card-footer-link i {
            transform: translateX(4px);
        }

        /* ===== CMS News List ===== */
        .news-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .news-item {
            display: flex;
            gap: 18px;
            align-items: flex-start;
            background: var(--bg-card);
            border: 1px solid var(--border-card);
            border-radius: var(--radius-lg);
            padding: 18px 20px;
            transition: all var(--transition-smooth);
        }
        .news-item:hover {
            border-color: var(--border-active);
            box-shadow: var(--shadow-md);
            background: var(--bg-card-hover);
        }
        .news-item .news-thumb {
            width: 100px;
            height: 70px;
            border-radius: var(--radius-md);
            overflow: hidden;
            flex-shrink: 0;
            background: var(--bg-surface);
        }
        .news-item .news-thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        .news-item .news-info {
            flex: 1;
            min-width: 0;
        }
        .news-item .news-info h4 {
            font-size: 0.95rem;
            font-weight: 600;
            margin-bottom: 4px;
            line-height: 1.4;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .news-item .news-info .news-meta {
            font-size: 0.75rem;
            color: var(--text-muted);
            display: flex;
            gap: 12px;
            flex-wrap: wrap;
        }
        .news-item .news-info .news-excerpt {
            font-size: 0.8rem;
            color: var(--text-secondary);
            margin-top: 4px;
            display: -webkit-box;
            -webkit-line-clamp: 1;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .news-empty {
            text-align: center;
            padding: 40px 20px;
            color: var(--text-muted);
            font-size: 0.9rem;
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            border: 1px dashed var(--border-card);
        }

        /* ===== Feature Highlight ===== */
        .feature-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
            gap: 20px;
        }
        .feature-card {
            background: var(--bg-card);
            border: 1px solid var(--border-card);
            border-radius: var(--radius-lg);
            padding: 28px 22px;
            text-align: center;
            transition: all var(--transition-smooth);
        }
        .feature-card:hover {
            border-color: var(--border-active);
            box-shadow: var(--shadow-md);
            transform: translateY(-2px);
        }
        .feature-card .feature-icon {
            width: 52px;
            height: 52px;
            border-radius: var(--radius-md);
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 16px;
            font-size: 1.4rem;
            color: #fff;
        }
        .feature-card .feature-icon.cyan-bg {
            background: linear-gradient(135deg, var(--accent-cyan), #0098c7);
        }
        .feature-card .feature-icon.purple-bg {
            background: linear-gradient(135deg, var(--accent-purple), #5b3dc7);
        }
        .feature-card .feature-icon.green-bg {
            background: linear-gradient(135deg, var(--accent-green), #0a9e6e);
        }
        .feature-card .feature-icon.amber-bg {
            background: linear-gradient(135deg, var(--accent-amber), #d97706);
        }
        .feature-card h4 {
            font-weight: 700;
            font-size: 0.95rem;
            margin-bottom: 6px;
        }
        .feature-card p {
            font-size: 0.8rem;
            color: var(--text-secondary);
            line-height: 1.5;
        }

        /* ===== Data Dashboard Block ===== */
        .dashboard-block {
            background: var(--bg-surface);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-xl);
            padding: 32px;
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 30px;
            align-items: center;
        }
        .dashboard-block .dash-text h3 {
            font-size: 1.4rem;
            font-weight: 800;
            margin-bottom: 10px;
        }
        .dashboard-block .dash-text p {
            color: var(--text-secondary);
            font-size: 0.9rem;
            line-height: 1.65;
        }
        .dashboard-block .dash-visual {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 12px;
        }
        .dash-metric {
            background: var(--bg-card);
            border: 1px solid var(--border-card);
            border-radius: var(--radius-md);
            padding: 18px 16px;
            text-align: center;
        }
        .dash-metric .metric-value {
            font-size: 1.6rem;
            font-weight: 800;
            color: var(--accent-cyan);
        }
        .dash-metric .metric-label {
            font-size: 0.7rem;
            color: var(--text-muted);
            margin-top: 2px;
        }

        /* ===== Process / Steps ===== */
        .steps-row {
            display: flex;
            gap: 0;
            counter-reset: step;
        }
        .step-item {
            flex: 1;
            text-align: center;
            position: relative;
            padding: 0 16px;
        }
        .step-item::after {
            content: '';
            position: absolute;
            top: 28px;
            left: calc(50% + 40px);
            width: calc(100% - 80px);
            height: 2px;
            background: var(--border-card);
        }
        .step-item:last-child::after {
            display: none;
        }
        .step-number {
            width: 56px;
            height: 56px;
            border-radius: 50%;
            background: var(--bg-card);
            border: 2px solid var(--border-card);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 800;
            font-size: 1.2rem;
            color: var(--accent-cyan);
            margin: 0 auto 14px;
            position: relative;
            z-index: 2;
        }
        .step-item h5 {
            font-weight: 700;
            font-size: 0.9rem;
            margin-bottom: 4px;
        }
        .step-item p {
            font-size: 0.78rem;
            color: var(--text-secondary);
        }

        /* ===== FAQ ===== */
        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 10px;
            max-width: 760px;
            margin: 0 auto;
        }
        .faq-item {
            background: var(--bg-card);
            border: 1px solid var(--border-card);
            border-radius: var(--radius-lg);
            overflow: hidden;
            transition: all var(--transition-smooth);
        }
        .faq-item.open {
            border-color: var(--border-active);
            box-shadow: var(--shadow-md);
        }
        .faq-question {
            width: 100%;
            background: transparent;
            color: var(--text-primary);
            padding: 18px 22px;
            font-size: 0.95rem;
            font-weight: 600;
            display: flex;
            align-items: center;
            justify-content: space-between;
            text-align: left;
            gap: 12px;
            transition: background var(--transition-fast);
        }
        .faq-question:hover {
            background: var(--bg-card-hover);
        }
        .faq-question .faq-icon {
            font-size: 0.8rem;
            color: var(--text-muted);
            transition: transform var(--transition-smooth);
            flex-shrink: 0;
        }
        .faq-item.open .faq-question .faq-icon {
            transform: rotate(180deg);
            color: var(--accent-cyan);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease, padding 0.35s ease;
        }
        .faq-item.open .faq-answer {
            max-height: 300px;
        }
        .faq-answer-inner {
            padding: 0 22px 18px;
            font-size: 0.85rem;
            color: var(--text-secondary);
            line-height: 1.65;
        }

        /* ===== CTA Section ===== */
        .cta-section {
            background: var(--bg-surface);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-xl);
            padding: 50px 40px;
            text-align: center;
            position: relative;
            overflow: hidden;
        }
        .cta-section .cta-glow {
            position: absolute;
            top: -50px;
            left: 50%;
            transform: translateX(-50%);
            width: 300px;
            height: 300px;
            background: radial-gradient(circle, var(--accent-cyan-glow) 0%, transparent 70%);
            pointer-events: none;
        }
        .cta-section h3 {
            font-size: 1.6rem;
            font-weight: 800;
            margin-bottom: 10px;
            position: relative;
            z-index: 1;
        }
        .cta-section p {
            color: var(--text-secondary);
            margin-bottom: 24px;
            position: relative;
            z-index: 1;
            max-width: 500px;
            margin-left: auto;
            margin-right: auto;
        }
        .cta-section .btn {
            position: relative;
            z-index: 1;
        }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--bg-sidebar);
            border-top: 1px solid var(--border-subtle);
            padding: 40px 0 28px;
            margin-top: auto;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            gap: 30px;
            margin-bottom: 30px;
        }
        .footer-brand .footer-logo {
            font-weight: 800;
            font-size: 1.1rem;
            color: var(--text-primary);
            margin-bottom: 8px;
        }
        .footer-brand p {
            font-size: 0.8rem;
            color: var(--text-muted);
            line-height: 1.6;
        }
        .footer-links h6 {
            font-size: 0.75rem;
            text-transform: uppercase;
            letter-spacing: 0.08em;
            color: var(--text-muted);
            margin-bottom: 12px;
            font-weight: 700;
        }
        .footer-links ul {
            display: flex;
            flex-direction: column;
            gap: 6px;
        }
        .footer-links ul li a {
            font-size: 0.83rem;
            color: var(--text-secondary);
            transition: color var(--transition-fast);
        }
        .footer-links ul li a:hover {
            color: var(--accent-cyan);
        }
        .footer-bottom {
            border-top: 1px solid var(--border-subtle);
            padding-top: 20px;
            text-align: center;
            font-size: 0.75rem;
            color: var(--text-muted);
        }

        /* ===== Responsive ===== */
        @media (max-width: 1024px) {
            .sidebar {
                transform: translateX(-100%);
            }
            .sidebar.open {
                transform: translateX(0);
            }
            .sidebar-overlay {
                display: block;
                pointer-events: none;
            }
            .sidebar-overlay.active {
                pointer-events: auto;
            }
            .main-content {
                margin-left: 0;
            }
            .mobile-topbar {
                display: flex;
            }
            .hero .container {
                flex-direction: column;
                gap: 30px;
            }
            .hero-visual {
                flex: 0 0 auto;
                width: 100%;
                max-width: 400px;
            }
            .hero-visual .hero-card-stack {
                height: 240px;
            }
            .hero-text h1 {
                font-size: 2.2rem;
            }
            .stats-bar .stats-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .stats-bar .stat-item {
                border-right: none;
                border-bottom: 1px solid var(--border-subtle);
            }
            .stats-bar .stat-item:nth-child(3),
            .stats-bar .stat-item:nth-child(4) {
                border-bottom: none;
            }
            .dashboard-block {
                grid-template-columns: 1fr;
            }
            .steps-row {
                flex-wrap: wrap;
                gap: 20px;
            }
            .step-item {
                flex: 0 0 100%;
            }
            .step-item::after {
                display: none;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
        }
        @media (max-width: 768px) {
            .container,
            .container-wide {
                padding: 0 16px;
            }
            .section {
                padding: 40px 0;
            }
            .section-lg {
                padding: 50px 0;
            }
            .section-header h2 {
                font-size: 1.5rem;
            }
            .hero {
                padding: 50px 0 40px;
            }
            .hero-text h1 {
                font-size: 1.8rem;
            }
            .category-grid {
                grid-template-columns: 1fr;
            }
            .feature-grid {
                grid-template-columns: 1fr 1fr;
            }
            .news-item {
                flex-direction: column;
                gap: 12px;
            }
            .news-item .news-thumb {
                width: 100%;
                height: 140px;
            }
            .cta-section {
                padding: 32px 20px;
                border-radius: var(--radius-lg);
            }
            .cta-section h3 {
                font-size: 1.3rem;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .dashboard-block {
                padding: 20px;
            }
            .dash-visual {
                grid-template-columns: 1fr 1fr;
                gap: 8px;
            }
            .dash-metric .metric-value {
                font-size: 1.3rem;
            }
        }
        @media (max-width: 520px) {
            .hero-text h1 {
                font-size: 1.5rem;
            }
            .hero-actions {
                flex-direction: column;
            }
            .hero-actions .btn {
                width: 100%;
                justify-content: center;
            }
            .feature-grid {
                grid-template-columns: 1fr;
            }
            .stats-bar .stats-grid {
                grid-template-columns: 1fr 1fr;
            }
            .stats-bar .stat-number {
                font-size: 1.4rem;
            }
            .hero-visual .hero-card-stack {
                height: 200px;
            }
            .hero-visual .floating-card.card-top {
                width: 180px;
                right: 0;
            }
            .hero-visual .floating-card.card-mid {
                width: 150px;
                right: 30px;
                top: 50px;
            }
            .hero-visual .floating-card.card-bottom {
                width: 160px;
                right: 10px;
                top: 100px;
            }
        }

/* roulang page: article */
:root {
            --primary: #00d4ff;
            --primary-dark: #0099cc;
            --primary-glow: rgba(0, 212, 255, 0.25);
            --secondary: #7c5cfc;
            --accent: #f59e0b;
            --accent-glow: rgba(245, 158, 11, 0.3);
            --bg-root: #060b14;
            --bg-sidebar: #090f1c;
            --bg-card: #0f1625;
            --bg-card-hover: #141d30;
            --bg-elevated: #111a2b;
            --bg-input: #0c1320;
            --text-primary: #e8edf5;
            --text-secondary: #b0bdd0;
            --text-muted: #6b7d95;
            --text-inverse: #060b14;
            --border-subtle: #1a2538;
            --border-card: #1e2a3d;
            --border-glow: rgba(0, 212, 255, 0.35);
            --radius-sm: 6px;
            --radius-md: 10px;
            --radius-lg: 16px;
            --radius-xl: 20px;
            --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
            --shadow-md: 0 6px 24px rgba(0, 0, 0, 0.4);
            --shadow-lg: 0 12px 40px rgba(0, 0, 0, 0.55);
            --shadow-glow: 0 0 30px rgba(0, 212, 255, 0.18);
            --shadow-accent: 0 0 24px rgba(245, 158, 11, 0.2);
            --sidebar-width: 250px;
            --header-height: 60px;
            --transition-fast: 0.15s ease;
            --transition-base: 0.25s ease;
            --transition-slow: 0.4s cubic-bezier(0.25, 0.8, 0.25, 1.2);
            --font-sans: 'Inter', 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', sans-serif;
            --font-mono: 'JetBrains Mono', 'SF Mono', 'Consolas', 'Monaco', monospace;
        }

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

        html {
            scroll-behavior: smooth;
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        body {
            font-family: var(--font-sans);
            background-color: var(--bg-root);
            color: var(--text-primary);
            line-height: 1.7;
            min-height: 100vh;
            display: flex;
            flex-direction: column;
            overflow-x: hidden;
        }

        body::before {
            content: '';
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            pointer-events: none;
            z-index: -1;
            background:
                radial-gradient(ellipse 900px 600px at 15% 8%, rgba(0, 180, 220, 0.04) 0%, transparent 70%),
                radial-gradient(ellipse 700px 500px at 80% 20%, rgba(124, 92, 252, 0.03) 0%, transparent 70%),
                radial-gradient(ellipse 600px 500px at 60% 75%, rgba(245, 158, 11, 0.025) 0%, transparent 70%);
        }

        a {
            color: var(--primary);
            text-decoration: none;
            transition: color var(--transition-fast);
        }
        a:hover {
            color: #33ddff;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        button {
            cursor: pointer;
            font-family: inherit;
            border: none;
            outline: none;
        }
        input,
        textarea {
            font-family: inherit;
            outline: none;
        }
        ul,
        ol {
            list-style: none;
        }

        .app-shell {
            display: flex;
            min-height: 100vh;
        }

        /* ========== SIDEBAR ========== */
        .sidebar {
            position: fixed;
            top: 0;
            left: 0;
            width: var(--sidebar-width);
            height: 100vh;
            background: var(--bg-sidebar);
            border-right: 1px solid var(--border-subtle);
            display: flex;
            flex-direction: column;
            z-index: 1000;
            transition: transform var(--transition-slow);
            overflow-y: auto;
            box-shadow: 2px 0 30px rgba(0, 0, 0, 0.4);
        }

        .sidebar-header {
            padding: 24px 20px 20px;
            border-bottom: 1px solid var(--border-subtle);
            flex-shrink: 0;
        }

        .sidebar-logo {
            font-size: 1.25rem;
            font-weight: 800;
            letter-spacing: 0.02em;
            color: var(--text-primary);
            display: flex;
            align-items: center;
            gap: 10px;
            text-decoration: none;
            transition: color var(--transition-fast);
        }
        .sidebar-logo:hover {
            color: var(--primary);
        }
        .sidebar-logo .logo-icon {
            width: 38px;
            height: 38px;
            border-radius: var(--radius-md);
            background: linear-gradient(135deg, var(--primary-dark), var(--primary));
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.1rem;
            color: #fff;
            box-shadow: var(--shadow-glow);
            flex-shrink: 0;
        }

        .sidebar-nav {
            flex: 1;
            padding: 16px 14px;
            display: flex;
            flex-direction: column;
            gap: 4px;
        }
        .nav-section-label {
            font-size: 0.7rem;
            text-transform: uppercase;
            letter-spacing: 0.08em;
            color: var(--text-muted);
            padding: 8px 10px 6px;
            font-weight: 600;
        }
        .sidebar-nav a {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 11px 14px;
            border-radius: var(--radius-md);
            color: var(--text-secondary);
            font-weight: 500;
            font-size: 0.9rem;
            transition: all var(--transition-fast);
            position: relative;
            text-decoration: none;
        }
        .sidebar-nav a i {
            width: 18px;
            text-align: center;
            font-size: 0.9rem;
            opacity: 0.75;
            transition: opacity var(--transition-fast);
        }
        .sidebar-nav a:hover {
            background: var(--bg-elevated);
            color: var(--text-primary);
        }
        .sidebar-nav a:hover i {
            opacity: 1;
            color: var(--primary);
        }
        .sidebar-nav a.active {
            background: linear-gradient(135deg, rgba(0, 212, 255, 0.12), rgba(0, 180, 220, 0.06));
            color: var(--primary);
            font-weight: 600;
            box-shadow: inset 3px 0 0 var(--primary), 0 0 16px rgba(0, 212, 255, 0.08);
        }
        .sidebar-nav a.active i {
            opacity: 1;
            color: var(--primary);
        }
        .badge-pulse {
            width: 7px;
            height: 7px;
            border-radius: 50%;
            background: var(--accent);
            margin-left: auto;
            animation: pulse-dot 2s ease-in-out infinite;
            box-shadow: 0 0 8px var(--accent-glow);
        }
        @keyframes pulse-dot {
            0%,
            100% {
                opacity: 1;
                transform: scale(1);
            }
            50% {
                opacity: 0.4;
                transform: scale(1.6);
            }
        }

        .sidebar-footer {
            padding: 16px 20px;
            border-top: 1px solid var(--border-subtle);
            flex-shrink: 0;
        }
        .sidebar-status {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 0.78rem;
            color: var(--text-muted);
        }
        .status-dot {
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: #10b981;
            box-shadow: 0 0 8px rgba(16, 185, 129, 0.5);
            animation: pulse-dot 2.5s ease-in-out infinite;
        }

        /* ========== MAIN CONTENT ========== */
        .main-content {
            flex: 1;
            margin-left: var(--sidebar-width);
            display: flex;
            flex-direction: column;
            min-height: 100vh;
        }

        /* ========== MOBILE HEADER ========== */
        .mobile-header {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            height: var(--header-height);
            background: var(--bg-sidebar);
            border-bottom: 1px solid var(--border-subtle);
            z-index: 999;
            align-items: center;
            padding: 0 16px;
            justify-content: space-between;
        }
        .mobile-header .mobile-logo {
            font-size: 1rem;
            font-weight: 700;
            color: var(--text-primary);
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .mobile-header .mobile-logo .logo-icon {
            width: 30px;
            height: 30px;
            border-radius: 6px;
            background: linear-gradient(135deg, var(--primary-dark), var(--primary));
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 0.85rem;
            color: #fff;
        }
        .hamburger-btn {
            width: 38px;
            height: 38px;
            border-radius: var(--radius-md);
            background: var(--bg-elevated);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--text-secondary);
            font-size: 1.2rem;
            transition: all var(--transition-fast);
            border: 1px solid var(--border-subtle);
        }
        .hamburger-btn:hover {
            color: var(--primary);
            border-color: var(--border-glow);
            box-shadow: var(--shadow-glow);
        }
        .sidebar-overlay {
            display: none;
            position: fixed;
            inset: 0;
            background: rgba(0, 0, 0, 0.65);
            z-index: 998;
            opacity: 0;
            transition: opacity var(--transition-base);
            pointer-events: none;
        }
        .sidebar-overlay.active {
            opacity: 1;
            pointer-events: auto;
        }

        /* ========== ARTICLE HERO BANNER ========== */
        .article-hero {
            position: relative;
            padding: 50px 40px 40px;
            background: var(--bg-elevated);
            border-bottom: 1px solid var(--border-subtle);
            overflow: hidden;
        }
        .article-hero::before {
            content: '';
            position: absolute;
            top: -40%;
            right: -15%;
            width: 500px;
            height: 500px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(0, 212, 255, 0.06) 0%, transparent 70%);
            pointer-events: none;
        }
        .article-hero::after {
            content: '';
            position: absolute;
            bottom: -30%;
            left: -10%;
            width: 400px;
            height: 400px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(124, 92, 252, 0.05) 0%, transparent 70%);
            pointer-events: none;
        }
        .article-hero-inner {
            position: relative;
            z-index: 1;
            max-width: 860px;
        }

        /* ========== BREADCRUMB ========== */
        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            flex-wrap: wrap;
            font-size: 0.82rem;
            color: var(--text-muted);
            margin-bottom: 16px;
        }
        .breadcrumb a {
            color: var(--text-muted);
            transition: color var(--transition-fast);
            text-decoration: none;
        }
        .breadcrumb a:hover {
            color: var(--primary);
        }
        .breadcrumb .separator {
            color: var(--text-muted);
            opacity: 0.5;
            font-size: 0.7rem;
        }
        .breadcrumb .current {
            color: var(--text-secondary);
            font-weight: 500;
        }

        /* ========== ARTICLE META ========== */
        .article-meta-top {
            display: flex;
            align-items: center;
            gap: 14px;
            flex-wrap: wrap;
            margin-bottom: 12px;
        }
        .article-category-tag {
            display: inline-flex;
            align-items: center;
            gap: 5px;
            padding: 5px 12px;
            border-radius: 20px;
            font-size: 0.78rem;
            font-weight: 600;
            background: rgba(0, 212, 255, 0.1);
            color: var(--primary);
            border: 1px solid rgba(0, 212, 255, 0.2);
            letter-spacing: 0.02em;
        }
        .article-category-tag i {
            font-size: 0.7rem;
        }
        .article-time {
            font-size: 0.82rem;
            color: var(--text-muted);
            display: flex;
            align-items: center;
            gap: 5px;
        }

        .article-hero h1 {
            font-size: 2rem;
            font-weight: 800;
            line-height: 1.35;
            color: var(--text-primary);
            letter-spacing: 0.01em;
            margin-bottom: 8px;
        }

        /* ========== CONTAINER ========== */
        .content-container {
            max-width: 900px;
            margin: 0 auto;
            padding: 0 40px;
        }

        /* ========== ARTICLE FEATURED IMAGE ========== */
        .article-featured-image {
            margin: 0 40px 30px;
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-lg);
            border: 1px solid var(--border-card);
            position: relative;
        }
        .article-featured-image img {
            width: 100%;
            height: auto;
            object-fit: cover;
            aspect-ratio: 16 / 9;
        }
        .article-featured-image::after {
            content: '';
            position: absolute;
            inset: 0;
            border-radius: var(--radius-lg);
            pointer-events: none;
            box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.04);
        }

        /* ========== ARTICLE BODY ========== */
        .article-body-section {
            padding: 10px 40px 40px;
        }
        .article-body-inner {
            max-width: 860px;
            margin: 0 auto;
        }
        .article-content {
            font-size: 1.02rem;
            line-height: 1.9;
            color: var(--text-secondary);
        }
        .article-content h2 {
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--text-primary);
            margin: 36px 0 16px;
            padding-bottom: 10px;
            border-bottom: 2px solid var(--border-subtle);
            letter-spacing: 0.01em;
        }
        .article-content h3 {
            font-size: 1.22rem;
            font-weight: 600;
            color: var(--text-primary);
            margin: 28px 0 12px;
        }
        .article-content p {
            margin-bottom: 16px;
        }
        .article-content ul,
        .article-content ol {
            margin: 12px 0 20px 20px;
            padding-left: 8px;
        }
        .article-content ul {
            list-style: disc;
        }
        .article-content ol {
            list-style: decimal;
        }
        .article-content li {
            margin-bottom: 8px;
            padding-left: 4px;
        }
        .article-content blockquote {
            margin: 24px 0;
            padding: 18px 24px;
            border-left: 4px solid var(--primary);
            background: var(--bg-card);
            border-radius: 0 var(--radius-md) var(--radius-md) 0;
            color: var(--text-secondary);
            font-style: italic;
            border: 1px solid var(--border-subtle);
            border-left: 4px solid var(--primary);
        }
        .article-content img {
            border-radius: var(--radius-md);
            margin: 20px 0;
            box-shadow: var(--shadow-md);
        }
        .article-content code {
            background: var(--bg-input);
            padding: 2px 8px;
            border-radius: 4px;
            font-family: var(--font-mono);
            font-size: 0.88em;
            color: var(--primary);
            border: 1px solid var(--border-subtle);
        }
        .article-content pre {
            background: var(--bg-input);
            padding: 20px 24px;
            border-radius: var(--radius-md);
            overflow-x: auto;
            margin: 20px 0;
            border: 1px solid var(--border-subtle);
            font-size: 0.9rem;
            line-height: 1.6;
        }
        .article-content strong {
            color: var(--text-primary);
            font-weight: 700;
        }
        .article-content a {
            text-decoration: underline;
            text-underline-offset: 3px;
            text-decoration-color: rgba(0, 212, 255, 0.3);
        }
        .article-content a:hover {
            text-decoration-color: var(--primary);
        }

        /* ========== NOT FOUND STATE ========== */
        .not-found-card {
            text-align: center;
            padding: 60px 30px;
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            border: 1px solid var(--border-card);
            max-width: 600px;
            margin: 40px auto;
        }
        .not-found-card .nf-icon {
            font-size: 3.5rem;
            color: var(--text-muted);
            margin-bottom: 20px;
            opacity: 0.6;
        }
        .not-found-card h2 {
            font-size: 1.4rem;
            color: var(--text-primary);
            margin-bottom: 10px;
        }
        .not-found-card p {
            color: var(--text-muted);
            margin-bottom: 24px;
        }

        /* ========== DATA METRICS STRIP ========== */
        .metrics-strip {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 16px;
            padding: 30px 40px;
            max-width: 900px;
            margin: 0 auto;
        }
        .metric-card {
            background: var(--bg-card);
            border: 1px solid var(--border-card);
            border-radius: var(--radius-lg);
            padding: 22px 18px;
            text-align: center;
            transition: all var(--transition-base);
            position: relative;
            overflow: hidden;
        }
        .metric-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 50%;
            transform: translateX(-50%);
            width: 60px;
            height: 3px;
            border-radius: 0 0 3px 3px;
            background: linear-gradient(90deg, transparent, var(--primary), transparent);
            opacity: 0.5;
        }
        .metric-card:hover {
            border-color: var(--border-glow);
            box-shadow: var(--shadow-glow);
            transform: translateY(-2px);
        }
        .metric-value {
            font-size: 1.8rem;
            font-weight: 800;
            color: var(--primary);
            letter-spacing: -0.02em;
            font-family: var(--font-mono);
        }
        .metric-label {
            font-size: 0.8rem;
            color: var(--text-muted);
            margin-top: 6px;
            letter-spacing: 0.02em;
        }

        /* ========== RELATED POSTS ========== */
        .related-section {
            padding: 20px 40px 50px;
        }
        .related-inner {
            max-width: 900px;
            margin: 0 auto;
        }
        .section-label {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 0.78rem;
            font-weight: 700;
            text-transform: uppercase;
            letter-spacing: 0.08em;
            color: var(--primary);
            margin-bottom: 8px;
        }
        .section-heading {
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 24px;
        }
        .related-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 18px;
        }
        .related-card {
            background: var(--bg-card);
            border: 1px solid var(--border-card);
            border-radius: var(--radius-lg);
            overflow: hidden;
            transition: all var(--transition-base);
            text-decoration: none;
            display: block;
        }
        .related-card:hover {
            border-color: var(--border-glow);
            box-shadow: var(--shadow-md);
            transform: translateY(-4px);
        }
        .related-card-img {
            aspect-ratio: 16 / 10;
            overflow: hidden;
            background: var(--bg-elevated);
            position: relative;
        }
        .related-card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform var(--transition-slow);
        }
        .related-card:hover .related-card-img img {
            transform: scale(1.04);
        }
        .related-card-body {
            padding: 16px 18px;
        }
        .related-card-body .rc-tag {
            font-size: 0.7rem;
            color: var(--primary);
            font-weight: 600;
            letter-spacing: 0.03em;
            margin-bottom: 6px;
            display: inline-block;
        }
        .related-card-body h4 {
            font-size: 0.95rem;
            font-weight: 600;
            color: var(--text-primary);
            line-height: 1.45;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .related-card-body .rc-time {
            font-size: 0.75rem;
            color: var(--text-muted);
            margin-top: 8px;
        }

        /* ========== CTA SECTION ========== */
        .cta-section {
            margin: 0 40px 50px;
            padding: 40px 36px;
            background: linear-gradient(135deg, var(--bg-elevated), var(--bg-card));
            border: 1px solid var(--border-card);
            border-radius: var(--radius-xl);
            text-align: center;
            position: relative;
            overflow: hidden;
            max-width: 900px;
            margin-left: auto;
            margin-right: auto;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            top: -50%;
            right: -20%;
            width: 350px;
            height: 350px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(0, 212, 255, 0.08) 0%, transparent 70%);
            pointer-events: none;
        }
        .cta-section h3 {
            font-size: 1.35rem;
            font-weight: 700;
            color: var(--text-primary);
            position: relative;
            z-index: 1;
            margin-bottom: 10px;
        }
        .cta-section p {
            color: var(--text-muted);
            position: relative;
            z-index: 1;
            margin-bottom: 20px;
            font-size: 0.95rem;
        }
        .btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 26px;
            border-radius: 25px;
            font-weight: 600;
            font-size: 0.9rem;
            letter-spacing: 0.02em;
            transition: all var(--transition-base);
            text-decoration: none;
            cursor: pointer;
            position: relative;
            z-index: 1;
        }
        .btn-primary {
            background: linear-gradient(135deg, var(--primary-dark), var(--primary));
            color: #fff;
            box-shadow: 0 4px 18px rgba(0, 180, 220, 0.35);
            border: none;
        }
        .btn-primary:hover {
            box-shadow: 0 6px 28px rgba(0, 200, 240, 0.5);
            transform: translateY(-2px);
            color: #fff;
        }
        .btn-outline {
            background: transparent;
            color: var(--text-primary);
            border: 1px solid var(--border-card);
        }
        .btn-outline:hover {
            border-color: var(--primary);
            color: var(--primary);
            box-shadow: var(--shadow-glow);
        }
        .btn-accent {
            background: linear-gradient(135deg, #e68900, var(--accent));
            color: #1a1a1a;
            box-shadow: 0 4px 18px rgba(245, 158, 11, 0.3);
            font-weight: 700;
        }
        .btn-accent:hover {
            box-shadow: 0 6px 28px rgba(245, 158, 11, 0.5);
            transform: translateY(-2px);
            color: #1a1a1a;
        }

        /* ========== FOOTER ========== */
        .site-footer {
            background: var(--bg-sidebar);
            border-top: 1px solid var(--border-subtle);
            padding: 40px 40px 24px;
            margin-top: auto;
        }
        .site-footer .container {
            max-width: 1100px;
            margin: 0 auto;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 28px;
        }
        .footer-brand .footer-logo {
            font-size: 1.15rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 10px;
            letter-spacing: 0.02em;
        }
        .footer-brand p {
            color: var(--text-muted);
            font-size: 0.85rem;
            line-height: 1.7;
        }
        .footer-links h6 {
            font-size: 0.78rem;
            text-transform: uppercase;
            letter-spacing: 0.06em;
            color: var(--text-muted);
            margin-bottom: 12px;
            font-weight: 600;
        }
        .footer-links ul {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 8px;
        }
        .footer-links a {
            color: var(--text-secondary);
            font-size: 0.85rem;
            transition: color var(--transition-fast);
            text-decoration: none;
        }
        .footer-links a:hover {
            color: var(--primary);
        }
        .footer-bottom {
            border-top: 1px solid var(--border-subtle);
            padding-top: 18px;
            text-align: center;
        }
        .footer-bottom p {
            font-size: 0.78rem;
            color: var(--text-muted);
            letter-spacing: 0.02em;
        }

        /* ========== RESPONSIVE ========== */
        @media (max-width: 1024px) {
            .sidebar {
                transform: translateX(-100%);
                box-shadow: none;
            }
            .sidebar.open {
                transform: translateX(0);
                box-shadow: 6px 0 40px rgba(0, 0, 0, 0.6);
            }
            .sidebar-overlay {
                display: block;
            }
            .main-content {
                margin-left: 0;
                padding-top: var(--header-height);
            }
            .mobile-header {
                display: flex;
            }
            .article-hero {
                padding: 30px 20px 24px;
            }
            .article-hero h1 {
                font-size: 1.5rem;
            }
            .article-featured-image {
                margin: 0 20px 20px;
            }
            .article-body-section {
                padding: 10px 20px 30px;
            }
            .content-container {
                padding: 0 20px;
            }
            .metrics-strip {
                grid-template-columns: repeat(2, 1fr);
                padding: 20px;
                gap: 12px;
            }
            .related-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 14px;
            }
            .related-section {
                padding: 20px 20px 40px;
            }
            .cta-section {
                margin: 0 20px 40px;
                padding: 30px 20px;
            }
            .site-footer {
                padding: 30px 20px 20px;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 24px;
            }
        }

        @media (max-width: 640px) {
            .article-hero h1 {
                font-size: 1.25rem;
            }
            .article-featured-image {
                margin: 0 12px 16px;
                border-radius: var(--radius-md);
            }
            .article-body-section {
                padding: 8px 12px 24px;
            }
            .article-content {
                font-size: 0.95rem;
            }
            .metrics-strip {
                grid-template-columns: repeat(2, 1fr);
                padding: 16px 12px;
                gap: 10px;
            }
            .metric-value {
                font-size: 1.4rem;
            }
            .related-grid {
                grid-template-columns: 1fr;
                gap: 12px;
            }
            .related-section {
                padding: 16px 12px 30px;
            }
            .cta-section {
                margin: 0 12px 30px;
                padding: 24px 16px;
                border-radius: var(--radius-lg);
            }
            .cta-section h3 {
                font-size: 1.15rem;
            }
            .site-footer {
                padding: 24px 12px 16px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 18px;
            }
            .breadcrumb {
                font-size: 0.74rem;
            }
        }

/* roulang page: category1 */
/* ============ 设计变量 ============ */
        :root {
            --sidebar-width: 250px;
            --sidebar-bg: #0b1121;
            --sidebar-hover: #1a2540;
            --sidebar-active: #1e3a5f;
            --sidebar-text: #c8cdd8;
            --sidebar-text-active: #ffffff;
            --sidebar-accent: #3b82f6;
            --sidebar-accent-glow: #60a5fa;
            --body-bg: #f1f5f9;
            --surface: #ffffff;
            --surface-alt: #f8fafc;
            --text-primary: #1e293b;
            --text-secondary: #64748b;
            --text-muted: #94a3b8;
            --border-light: #e2e8f0;
            --border-medium: #cbd5e1;
            --accent-primary: #2563eb;
            --accent-secondary: #06b6d4;
            --accent-warning: #f59e0b;
            --accent-success: #10b981;
            --accent-danger: #ef4444;
            --accent-primary-hover: #1d4ed8;
            --accent-primary-light: #dbeafe;
            --accent-secondary-light: #cffafe;
            --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
            --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.08), 0 2px 4px -2px rgba(0, 0, 0, 0.05);
            --shadow-lg: 0 10px 25px -3px rgba(0, 0, 0, 0.1), 0 4px 10px -4px rgba(0, 0, 0, 0.06);
            --shadow-xl: 0 20px 40px -5px rgba(0, 0, 0, 0.12), 0 8px 16px -6px rgba(0, 0, 0, 0.08);
            --radius-sm: 6px;
            --radius-md: 10px;
            --radius-lg: 16px;
            --radius-xl: 20px;
            --radius-full: 9999px;
            --transition-fast: 0.15s ease;
            --transition-base: 0.25s ease;
            --transition-slow: 0.35s ease;
            --font-sans: 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', system-ui, -apple-system, sans-serif;
        }

        /* ============ Reset & Base ============ */
        *,
        *::before,
        *::after {
            box-sizing: border-box;
        }

        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }

        body {
            margin: 0;
            padding: 0;
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.65;
            color: var(--text-primary);
            background-color: var(--body-bg);
            display: flex;
            min-height: 100vh;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

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

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

        button {
            cursor: pointer;
            font-family: inherit;
        }

        input,
        select,
        textarea {
            font-family: inherit;
        }

        ul {
            list-style: none;
            margin: 0;
            padding: 0;
        }

        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            margin: 0;
            line-height: 1.3;
            font-weight: 700;
        }

        p {
            margin: 0;
        }

        /* ============ 左侧 App Shell 导航 ============ */
        .sidebar {
            position: fixed;
            top: 0;
            left: 0;
            width: var(--sidebar-width);
            height: 100vh;
            background: var(--sidebar-bg);
            z-index: 1000;
            display: flex;
            flex-direction: column;
            overflow-y: auto;
            overflow-x: hidden;
            border-right: 1px solid rgba(255, 255, 255, 0.06);
            transition: transform var(--transition-slow), box-shadow var(--transition-slow);
        }

        .sidebar-header {
            padding: 24px 20px 20px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
            flex-shrink: 0;
        }

        .sidebar-logo {
            font-size: 1.25rem;
            font-weight: 800;
            color: #ffffff;
            letter-spacing: 0.02em;
            display: flex;
            align-items: center;
            gap: 10px;
            line-height: 1.2;
        }

        .sidebar-logo .logo-icon {
            width: 40px;
            height: 40px;
            background: linear-gradient(135deg, var(--sidebar-accent), var(--sidebar-accent-glow));
            border-radius: var(--radius-md);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.2rem;
            color: #fff;
            flex-shrink: 0;
        }

        .sidebar-nav {
            flex: 1;
            padding: 16px 12px;
            display: flex;
            flex-direction: column;
            gap: 2px;
        }

        .nav-section-label {
            font-size: 0.7rem;
            text-transform: uppercase;
            letter-spacing: 0.08em;
            color: rgba(255, 255, 255, 0.3);
            padding: 12px 12px 6px;
            font-weight: 600;
        }

        .sidebar-nav a {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 11px 14px;
            border-radius: var(--radius-md);
            color: var(--sidebar-text);
            font-size: 0.925rem;
            font-weight: 500;
            transition: all var(--transition-fast);
            position: relative;
            white-space: nowrap;
        }

        .sidebar-nav a i {
            width: 20px;
            text-align: center;
            font-size: 1rem;
            flex-shrink: 0;
        }

        .sidebar-nav a:hover {
            background: var(--sidebar-hover);
            color: #ffffff;
        }

        .sidebar-nav a.active {
            background: var(--sidebar-active);
            color: var(--sidebar-text-active);
            font-weight: 600;
            box-shadow: inset 3px 0 0 var(--sidebar-accent);
        }

        .sidebar-nav a.active i {
            color: var(--sidebar-accent-glow);
        }

        .badge-pulse {
            display: inline-block;
            width: 8px;
            height: 8px;
            background: var(--accent-success);
            border-radius: 50%;
            margin-left: auto;
            position: relative;
            flex-shrink: 0;
        }

        .badge-pulse::after {
            content: '';
            position: absolute;
            top: 50%;
            left: 50%;
            transform: translate(-50%, -50%);
            width: 16px;
            height: 16px;
            background: rgba(16, 185, 129, 0.35);
            border-radius: 50%;
            animation: pulse-ring 2s ease-out infinite;
        }

        @keyframes pulse-ring {
            0% {
                width: 8px;
                height: 8px;
                opacity: 0.8;
            }
            100% {
                width: 22px;
                height: 22px;
                opacity: 0;
            }
        }

        .sidebar-footer {
            padding: 16px 20px;
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            flex-shrink: 0;
        }

        .sidebar-status {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 0.8rem;
            color: rgba(255, 255, 255, 0.5);
        }

        .status-dot {
            width: 8px;
            height: 8px;
            background: var(--accent-success);
            border-radius: 50%;
            flex-shrink: 0;
        }

        /* ============ 移动端侧边栏覆盖层 ============ */
        .sidebar-overlay {
            display: none;
            position: fixed;
            inset: 0;
            background: rgba(0, 0, 0, 0.55);
            z-index: 999;
            transition: opacity var(--transition-slow);
        }

        .sidebar-overlay.active {
            display: block;
        }

        /* ============ 主内容区 ============ */
        .main-wrapper {
            margin-left: var(--sidebar-width);
            flex: 1;
            display: flex;
            flex-direction: column;
            min-height: 100vh;
            transition: margin-left var(--transition-slow);
        }

        .main-content {
            flex: 1;
        }

        /* ============ 移动端顶部栏 ============ */
        .mobile-topbar {
            display: none;
            position: sticky;
            top: 0;
            z-index: 100;
            background: #ffffff;
            border-bottom: 1px solid var(--border-light);
            padding: 12px 16px;
            align-items: center;
            gap: 12px;
            box-shadow: var(--shadow-sm);
        }

        .mobile-topbar .hamburger {
            width: 38px;
            height: 38px;
            border: none;
            background: var(--surface-alt);
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.2rem;
            color: var(--text-primary);
            flex-shrink: 0;
            transition: background var(--transition-fast);
        }

        .mobile-topbar .hamburger:hover {
            background: var(--border-light);
        }

        .mobile-topbar .topbar-logo {
            font-weight: 700;
            font-size: 1rem;
            color: var(--text-primary);
        }

        /* ============ 容器 ============ */
        .container {
            width: 100%;
            max-width: 1100px;
            margin: 0 auto;
            padding: 0 24px;
        }

        .container--narrow {
            max-width: 860px;
        }

        .container--wide {
            max-width: 1200px;
        }

        /* ============ 板块间距 ============ */
        .section {
            padding: 56px 0;
        }

        .section--tight {
            padding: 36px 0;
        }

        .section--loose {
            padding: 72px 0;
        }

        .section-header {
            text-align: center;
            margin-bottom: 40px;
        }

        .section-header h2 {
            font-size: 1.85rem;
            color: var(--text-primary);
            margin-bottom: 10px;
        }

        .section-header .section-subtitle {
            font-size: 0.95rem;
            color: var(--text-secondary);
            max-width: 560px;
            margin: 0 auto;
        }

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

        /* ============ 分类 Banner ============ */
        .category-banner {
            position: relative;
            padding: 70px 0;
            background-image: url('/assets/images/backpic/back-1.png');
            background-size: cover;
            background-position: center;
            background-repeat: no-repeat;
            overflow: hidden;
        }

        .category-banner::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(11, 17, 33, 0.88) 0%, rgba(11, 17, 33, 0.65) 50%, rgba(30, 58, 95, 0.55) 100%);
            z-index: 1;
        }

        .category-banner .container {
            position: relative;
            z-index: 2;
        }

        .category-banner .banner-breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.7);
            margin-bottom: 20px;
            flex-wrap: wrap;
        }

        .category-banner .banner-breadcrumb a {
            color: rgba(255, 255, 255, 0.85);
            transition: color var(--transition-fast);
        }

        .category-banner .banner-breadcrumb a:hover {
            color: #ffffff;
        }

        .category-banner .banner-breadcrumb .separator {
            color: rgba(255, 255, 255, 0.4);
        }

        .category-banner .banner-breadcrumb .current {
            color: var(--accent-secondary);
            font-weight: 500;
        }

        .category-banner h1 {
            font-size: 2.6rem;
            color: #ffffff;
            margin-bottom: 14px;
            line-height: 1.25;
            letter-spacing: 0.01em;
        }

        .category-banner .banner-desc {
            font-size: 1.1rem;
            color: rgba(255, 255, 255, 0.8);
            max-width: 600px;
            line-height: 1.6;
        }

        .category-banner .banner-stats-row {
            display: flex;
            gap: 28px;
            margin-top: 28px;
            flex-wrap: wrap;
        }

        .category-banner .banner-stat {
            display: flex;
            align-items: center;
            gap: 8px;
            color: rgba(255, 255, 255, 0.9);
            font-size: 0.9rem;
        }

        .category-banner .banner-stat .stat-icon {
            width: 36px;
            height: 36px;
            background: rgba(255, 255, 255, 0.12);
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 0.9rem;
        }

        .category-banner .banner-stat strong {
            font-size: 1.3rem;
            color: #ffffff;
        }

        /* ============ 数据概览卡片 ============ */
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 18px;
        }

        .stat-card {
            background: var(--surface);
            border-radius: var(--radius-lg);
            padding: 24px 20px;
            box-shadow: var(--shadow-md);
            border: 1px solid var(--border-light);
            transition: all var(--transition-base);
            position: relative;
            overflow: hidden;
        }

        .stat-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 3px;
            background: var(--accent-primary);
            border-radius: var(--radius-lg) var(--radius-lg) 0 0;
            opacity: 0;
            transition: opacity var(--transition-base);
        }

        .stat-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-2px);
            border-color: var(--border-medium);
        }

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

        .stat-card .stat-icon-wrap {
            width: 44px;
            height: 44px;
            border-radius: var(--radius-md);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.2rem;
            margin-bottom: 14px;
            flex-shrink: 0;
        }

        .stat-card .stat-icon-wrap--blue {
            background: var(--accent-primary-light);
            color: var(--accent-primary);
        }

        .stat-card .stat-icon-wrap--cyan {
            background: var(--accent-secondary-light);
            color: var(--accent-secondary);
        }

        .stat-card .stat-icon-wrap--amber {
            background: #fef3c7;
            color: var(--accent-warning);
        }

        .stat-card .stat-icon-wrap--green {
            background: #d1fae5;
            color: var(--accent-success);
        }

        .stat-card .stat-value {
            font-size: 2rem;
            font-weight: 800;
            color: var(--text-primary);
            line-height: 1;
            margin-bottom: 6px;
        }

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

        .stat-card .stat-change {
            display: inline-flex;
            align-items: center;
            gap: 3px;
            font-size: 0.78rem;
            font-weight: 600;
            margin-top: 6px;
            padding: 2px 8px;
            border-radius: var(--radius-full);
        }

        .stat-card .stat-change--up {
            color: #059669;
            background: #d1fae5;
        }

        .stat-card .stat-change--live {
            color: var(--accent-primary);
            background: var(--accent-primary-light);
        }

        /* ============ 赛事卡片网格 ============ */
        .match-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }

        .match-card {
            background: var(--surface);
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-md);
            border: 1px solid var(--border-light);
            transition: all var(--transition-base);
            display: flex;
            flex-direction: column;
        }

        .match-card:hover {
            box-shadow: var(--shadow-xl);
            transform: translateY(-3px);
            border-color: var(--border-medium);
        }

        .match-card .match-card-img {
            width: 100%;
            height: 180px;
            object-fit: cover;
            display: block;
        }

        .match-card .match-card-body {
            padding: 18px 16px;
            flex: 1;
            display: flex;
            flex-direction: column;
            gap: 8px;
        }

        .match-card .match-card-tag {
            display: inline-block;
            font-size: 0.72rem;
            font-weight: 600;
            text-transform: uppercase;
            letter-spacing: 0.04em;
            padding: 3px 10px;
            border-radius: var(--radius-full);
            width: fit-content;
        }

        .match-card .match-card-tag--live {
            background: #fee2e2;
            color: #dc2626;
        }

        .match-card .match-card-tag--upcoming {
            background: #dbeafe;
            color: #2563eb;
        }

        .match-card .match-card-tag--finished {
            background: #f1f5f9;
            color: #64748b;
        }

        .match-card .match-card-title {
            font-size: 1.05rem;
            font-weight: 700;
            color: var(--text-primary);
            line-height: 1.4;
        }

        .match-card .match-card-meta {
            font-size: 0.82rem;
            color: var(--text-secondary);
            display: flex;
            align-items: center;
            gap: 12px;
            flex-wrap: wrap;
        }

        .match-card .match-card-meta span {
            display: flex;
            align-items: center;
            gap: 4px;
        }

        .match-card .match-card-footer {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 12px 16px;
            border-top: 1px solid var(--border-light);
            background: var(--surface-alt);
        }

        .match-card .match-score {
            font-weight: 800;
            font-size: 1.1rem;
            color: var(--text-primary);
        }

        .match-card .match-score .score-divider {
            color: var(--text-muted);
            margin: 0 6px;
        }

        /* ============ 分类入口网格 ============ */
        .category-entry-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 16px;
        }

        .category-entry {
            background: var(--surface);
            border-radius: var(--radius-lg);
            padding: 28px 18px;
            text-align: center;
            box-shadow: var(--shadow-md);
            border: 1px solid var(--border-light);
            transition: all var(--transition-base);
            cursor: pointer;
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 10px;
        }

        .category-entry:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-3px);
            border-color: var(--accent-primary);
        }

        .category-entry .entry-icon {
            width: 56px;
            height: 56px;
            border-radius: var(--radius-md);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.5rem;
            flex-shrink: 0;
        }

        .category-entry .entry-icon--football {
            background: #dbeafe;
            color: #2563eb;
        }

        .category-entry .entry-icon--basketball {
            background: #fef3c7;
            color: #d97706;
        }

        .category-entry .entry-icon--esports {
            background: #ede9fe;
            color: #7c3aed;
        }

        .category-entry .entry-icon--tennis {
            background: #d1fae5;
            color: #059669;
        }

        .category-entry .entry-name {
            font-weight: 700;
            font-size: 1rem;
            color: var(--text-primary);
        }

        .category-entry .entry-count {
            font-size: 0.78rem;
            color: var(--text-muted);
        }

        /* ============ 数据面板 ============ */
        .data-panel {
            background: var(--surface);
            border-radius: var(--radius-xl);
            padding: 36px 28px;
            box-shadow: var(--shadow-md);
            border: 1px solid var(--border-light);
        }

        .data-panel .panel-header {
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-bottom: 24px;
            flex-wrap: wrap;
            gap: 12px;
        }

        .data-panel .panel-header h3 {
            font-size: 1.2rem;
            color: var(--text-primary);
        }

        .data-panel .panel-badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 0.78rem;
            font-weight: 600;
            color: var(--accent-success);
            background: #d1fae5;
            padding: 5px 12px;
            border-radius: var(--radius-full);
        }

        .data-panel .panel-badge .live-dot {
            width: 7px;
            height: 7px;
            background: var(--accent-success);
            border-radius: 50%;
            animation: live-blink 1.2s ease-in-out infinite;
        }

        @keyframes live-blink {
            0%,
            100% {
                opacity: 1;
            }
            50% {
                opacity: 0.3;
            }
        }

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

        .data-table {
            width: 100%;
            border-collapse: collapse;
            font-size: 0.9rem;
        }

        .data-table thead th {
            text-align: left;
            padding: 12px 14px;
            font-weight: 600;
            color: var(--text-secondary);
            font-size: 0.78rem;
            text-transform: uppercase;
            letter-spacing: 0.04em;
            border-bottom: 2px solid var(--border-light);
            white-space: nowrap;
        }

        .data-table tbody td {
            padding: 13px 14px;
            border-bottom: 1px solid var(--border-light);
            color: var(--text-primary);
            white-space: nowrap;
        }

        .data-table tbody tr {
            transition: background var(--transition-fast);
        }

        .data-table tbody tr:hover {
            background: var(--surface-alt);
        }

        .data-table .team-cell {
            display: flex;
            align-items: center;
            gap: 8px;
            font-weight: 500;
        }

        .data-table .team-dot {
            width: 10px;
            height: 10px;
            border-radius: 50%;
            flex-shrink: 0;
        }

        .data-table .team-dot--a {
            background: #3b82f6;
        }
        .data-table .team-dot--b {
            background: #ef4444;
        }
        .data-table .team-dot--c {
            background: #10b981;
        }
        .data-table .team-dot--d {
            background: #f59e0b;
        }

        .data-table .status-indicator {
            display: inline-block;
            padding: 3px 10px;
            border-radius: var(--radius-full);
            font-size: 0.75rem;
            font-weight: 600;
        }

        .data-table .status-indicator--ongoing {
            background: #fee2e2;
            color: #dc2626;
        }

        .data-table .status-indicator--scheduled {
            background: #dbeafe;
            color: #2563eb;
        }

        /* ============ CTA 板块 ============ */
        .cta-section {
            background: linear-gradient(135deg, #0b1121 0%, #1a2540 50%, #1e3a5f 100%);
            border-radius: var(--radius-xl);
            padding: 48px 36px;
            text-align: center;
            color: #ffffff;
            position: relative;
            overflow: hidden;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            top: -60px;
            right: -60px;
            width: 200px;
            height: 200px;
            background: rgba(59, 130, 246, 0.15);
            border-radius: 50%;
            pointer-events: none;
        }

        .cta-section::after {
            content: '';
            position: absolute;
            bottom: -40px;
            left: -40px;
            width: 140px;
            height: 140px;
            background: rgba(6, 182, 212, 0.12);
            border-radius: 50%;
            pointer-events: none;
        }

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

        .cta-section h2 {
            font-size: 1.8rem;
            margin-bottom: 12px;
            color: #ffffff;
        }

        .cta-section p {
            color: rgba(255, 255, 255, 0.75);
            max-width: 520px;
            margin: 0 auto 24px;
            font-size: 1rem;
        }

        /* ============ 按钮 ============ */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 11px 22px;
            font-size: 0.925rem;
            font-weight: 600;
            border-radius: var(--radius-md);
            border: 2px solid transparent;
            cursor: pointer;
            transition: all var(--transition-fast);
            text-align: center;
            line-height: 1.3;
            white-space: nowrap;
            font-family: inherit;
        }

        .btn--primary {
            background: var(--accent-primary);
            color: #ffffff;
            border-color: var(--accent-primary);
        }

        .btn--primary:hover {
            background: var(--accent-primary-hover);
            border-color: var(--accent-primary-hover);
            box-shadow: 0 6px 18px rgba(37, 99, 235, 0.3);
            transform: translateY(-1px);
        }

        .btn--outline {
            background: transparent;
            color: var(--accent-primary);
            border-color: var(--accent-primary);
        }

        .btn--outline:hover {
            background: var(--accent-primary-light);
            border-color: var(--accent-primary);
        }

        .btn--white {
            background: #ffffff;
            color: var(--text-primary);
            border-color: #ffffff;
        }

        .btn--white:hover {
            background: #f1f5f9;
            border-color: #f1f5f9;
            box-shadow: var(--shadow-lg);
            transform: translateY(-1px);
        }

        .btn--lg {
            padding: 14px 30px;
            font-size: 1rem;
            border-radius: var(--radius-lg);
        }

        .btn--sm {
            padding: 7px 14px;
            font-size: 0.8rem;
            border-radius: var(--radius-sm);
        }

        .btn:focus-visible {
            outline: 3px solid rgba(37, 99, 235, 0.5);
            outline-offset: 2px;
        }

        /* ============ FAQ ============ */
        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 10px;
            max-width: 760px;
            margin: 0 auto;
        }

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

        .faq-item:hover {
            border-color: var(--border-medium);
            box-shadow: var(--shadow-md);
        }

        .faq-question {
            width: 100%;
            text-align: left;
            padding: 18px 20px;
            font-size: 0.98rem;
            font-weight: 600;
            color: var(--text-primary);
            background: none;
            border: none;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            cursor: pointer;
            transition: color var(--transition-fast);
            font-family: inherit;
        }

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

        .faq-question .faq-icon {
            font-size: 0.75rem;
            color: var(--text-muted);
            transition: transform var(--transition-fast);
            flex-shrink: 0;
        }

        .faq-item.open .faq-question .faq-icon {
            transform: rotate(180deg);
            color: var(--accent-primary);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height var(--transition-slow), padding var(--transition-slow);
            padding: 0 20px;
            font-size: 0.9rem;
            color: var(--text-secondary);
            line-height: 1.7;
        }

        .faq-item.open .faq-answer {
            max-height: 300px;
            padding: 0 20px 18px;
        }

        /* ============ 页脚 ============ */
        .site-footer {
            background: #0b1121;
            color: rgba(255, 255, 255, 0.7);
            padding: 40px 0 20px;
            margin-top: auto;
        }

        .site-footer .container {
            max-width: 1100px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr;
            gap: 30px;
            padding-bottom: 28px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.1);
            margin-bottom: 18px;
        }

        .footer-brand .footer-logo {
            font-size: 1.2rem;
            font-weight: 800;
            color: #ffffff;
            margin-bottom: 10px;
        }

        .footer-brand p {
            font-size: 0.85rem;
            line-height: 1.6;
        }

        .footer-links h6 {
            font-size: 0.85rem;
            font-weight: 700;
            color: #ffffff;
            margin-bottom: 12px;
            text-transform: uppercase;
            letter-spacing: 0.04em;
        }

        .footer-links ul {
            display: flex;
            flex-direction: column;
            gap: 8px;
        }

        .footer-links ul li a {
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.6);
            transition: color var(--transition-fast);
        }

        .footer-links ul li a:hover {
            color: #ffffff;
        }

        .footer-bottom {
            text-align: center;
            font-size: 0.8rem;
            color: rgba(255, 255, 255, 0.4);
        }

        /* ============ 标签 ============ */
        .tag {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            padding: 4px 10px;
            border-radius: var(--radius-full);
            font-size: 0.75rem;
            font-weight: 600;
            letter-spacing: 0.02em;
        }

        .tag--blue {
            background: #dbeafe;
            color: #1d4ed8;
        }

        .tag--red {
            background: #fee2e2;
            color: #dc2626;
        }

        .tag--green {
            background: #d1fae5;
            color: #059669;
        }

        /* ============ 响应式 ============ */
        @media (max-width: 1024px) {
            :root {
                --sidebar-width: 220px;
            }
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .match-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .category-entry-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
            .footer-brand {
                grid-column: 1 / -1;
            }
            .category-banner h1 {
                font-size: 2.1rem;
            }
        }

        @media (max-width: 768px) {
            .sidebar {
                transform: translateX(-100%);
                box-shadow: none;
            }
            .sidebar.open {
                transform: translateX(0);
                box-shadow: var(--shadow-xl);
            }
            .sidebar-overlay.active {
                display: block;
            }
            .main-wrapper {
                margin-left: 0;
            }
            .mobile-topbar {
                display: flex;
            }
            .stats-grid {
                grid-template-columns: 1fr 1fr;
                gap: 12px;
            }
            .match-grid {
                grid-template-columns: 1fr 1fr;
                gap: 14px;
            }
            .category-entry-grid {
                grid-template-columns: 1fr 1fr;
                gap: 12px;
            }
            .category-banner {
                padding: 46px 0;
            }
            .category-banner h1 {
                font-size: 1.7rem;
            }
            .category-banner .banner-desc {
                font-size: 0.95rem;
            }
            .section {
                padding: 38px 0;
            }
            .section-header h2 {
                font-size: 1.5rem;
            }
            .data-panel {
                padding: 22px 14px;
            }
            .cta-section {
                padding: 34px 20px;
            }
            .cta-section h2 {
                font-size: 1.4rem;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .stat-card .stat-value {
                font-size: 1.5rem;
            }
            .container {
                padding: 0 16px;
            }
        }

        @media (max-width: 520px) {
            .stats-grid {
                grid-template-columns: 1fr;
                gap: 10px;
            }
            .match-grid {
                grid-template-columns: 1fr;
                gap: 12px;
            }
            .category-entry-grid {
                grid-template-columns: 1fr 1fr;
                gap: 10px;
            }
            .category-banner h1 {
                font-size: 1.4rem;
            }
            .category-banner .banner-stats-row {
                gap: 14px;
            }
            .banner-stats-row .banner-stat {
                font-size: 0.78rem;
            }
            .banner-stats-row .banner-stat strong {
                font-size: 1rem;
            }
            .match-card .match-card-img {
                height: 150px;
            }
            .section-header h2 {
                font-size: 1.3rem;
            }
            .data-table {
                font-size: 0.78rem;
            }
            .data-table thead th,
            .data-table tbody td {
                padding: 8px 10px;
            }
            .category-entry {
                padding: 20px 12px;
            }
            .category-entry .entry-icon {
                width: 44px;
                height: 44px;
                font-size: 1.2rem;
            }
            .btn--lg {
                padding: 11px 20px;
                font-size: 0.9rem;
            }
            .faq-question {
                font-size: 0.9rem;
                padding: 14px 16px;
            }
            .faq-item.open .faq-answer {
                padding: 0 16px 14px;
            }
        }