/* roulang page: index */
/* ===== 设计变量 ===== */
        :root {
            --primary: #1a3a8a;
            --primary-light: #2563eb;
            --primary-dark: #0f1f4a;
            --secondary: #f59e0b;
            --secondary-light: #fbbf24;
            --secondary-dark: #d97706;
            --accent: #ef4444;
            --bg-body: #f8fafc;
            --bg-white: #ffffff;
            --bg-dark: #0f172a;
            --bg-gray: #f1f5f9;
            --bg-card: #ffffff;
            --text-primary: #0f172a;
            --text-secondary: #475569;
            --text-light: #94a3b8;
            --text-white: #ffffff;
            --border: #e2e8f0;
            --border-light: #f1f5f9;
            --shadow-sm: 0 1px 3px rgba(15,23,42,0.06), 0 1px 2px rgba(15,23,42,0.04);
            --shadow-md: 0 4px 6px -1px rgba(15,23,42,0.08), 0 2px 4px -1px rgba(15,23,42,0.04);
            --shadow-lg: 0 10px 25px -3px rgba(15,23,42,0.1), 0 4px 6px -2px rgba(15,23,42,0.05);
            --shadow-xl: 0 20px 40px -5px rgba(15,23,42,0.12);
            --radius-sm: 6px;
            --radius-md: 10px;
            --radius-lg: 16px;
            --radius-xl: 24px;
            --radius-full: 9999px;
            --transition: 0.2s cubic-bezier(0.4,0,0.2,1);
            --font-sans: 'Inter', system-ui, -apple-system, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
            --container-max: 1200px;
            --container-pad: 1.25rem;
            --header-h: 72px;
            --grid-gap: 1.5rem;
        }

        /* ===== Reset & Base ===== */
        *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
        html { scroll-behavior: smooth; -webkit-font-smoothing: antialiased; }
        body {
            font-family: var(--font-sans);
            font-size: 1rem;
            line-height: 1.6;
            color: var(--text-primary);
            background: var(--bg-body);
        }
        img { max-width: 100%; height: auto; display: block; }
        a { color: inherit; text-decoration: none; transition: var(--transition); }
        a:hover { color: var(--primary-light); }
        button { cursor: pointer; font-family: inherit; border: none; background: none; }
        input, textarea { font-family: inherit; font-size: 1rem; }
        ul, ol { list-style: none; }
        h1, h2, h3, h4, h5, h6 { line-height: 1.25; font-weight: 700; color: var(--text-primary); }
        h1 { font-size: clamp(2rem, 5vw, 3.25rem); }
        h2 { font-size: clamp(1.5rem, 3.5vw, 2.25rem); }
        h3 { font-size: clamp(1.125rem, 2.5vw, 1.5rem); }
        h4 { font-size: 1.125rem; }
        p { margin-bottom: 0.75rem; color: var(--text-secondary); }
        p:last-child { margin-bottom: 0; }
        .container {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 var(--container-pad);
        }
        .section { padding: 4rem 0; }
        .section-title {
            text-align: center;
            margin-bottom: 0.5rem;
            font-weight: 800;
        }
        .section-subtitle {
            text-align: center;
            color: var(--text-secondary);
            max-width: 600px;
            margin: 0 auto 2.5rem auto;
            font-size: 1.05rem;
        }
        .text-center { text-align: center; }
        .sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border-width: 0; }

        /* ===== Buttons ===== */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 0.5rem;
            padding: 0.625rem 1.5rem;
            font-size: 0.925rem;
            font-weight: 600;
            border-radius: var(--radius-full);
            transition: var(--transition);
            border: 2px solid transparent;
            white-space: nowrap;
            line-height: 1.4;
        }
        .btn-primary {
            background: var(--primary);
            color: var(--text-white);
            border-color: var(--primary);
        }
        .btn-primary:hover {
            background: var(--primary-light);
            border-color: var(--primary-light);
            color: var(--text-white);
            transform: translateY(-2px);
            box-shadow: var(--shadow-md);
        }
        .btn-primary:active { transform: translateY(0); box-shadow: var(--shadow-sm); }
        .btn-secondary {
            background: var(--secondary);
            color: var(--text-white);
            border-color: var(--secondary);
        }
        .btn-secondary:hover {
            background: var(--secondary-light);
            border-color: var(--secondary-light);
            color: var(--text-white);
            transform: translateY(-2px);
            box-shadow: var(--shadow-md);
        }
        .btn-secondary:active { transform: translateY(0); }
        .btn-outline {
            background: transparent;
            color: var(--primary);
            border-color: var(--primary);
        }
        .btn-outline:hover {
            background: var(--primary);
            color: var(--text-white);
            transform: translateY(-2px);
            box-shadow: var(--shadow-md);
        }
        .btn-outline:active { transform: translateY(0); }
        .btn-light {
            background: var(--text-white);
            color: var(--primary);
            border-color: var(--text-white);
        }
        .btn-light:hover {
            background: var(--bg-gray);
            border-color: var(--bg-gray);
            transform: translateY(-2px);
            box-shadow: var(--shadow-md);
        }
        .btn-lg { padding: 0.875rem 2.25rem; font-size: 1.05rem; }
        .btn-sm { padding: 0.4rem 1rem; font-size: 0.8125rem; }
        .btn i { font-size: 0.9em; }

        /* ===== Badge / Tag ===== */
        .badge {
            display: inline-flex;
            align-items: center;
            padding: 0.2rem 0.75rem;
            font-size: 0.75rem;
            font-weight: 600;
            border-radius: var(--radius-full);
            background: var(--bg-gray);
            color: var(--text-secondary);
            letter-spacing: 0.02em;
        }
        .badge-primary { background: rgba(37,99,235,0.12); color: var(--primary-light); }
        .badge-secondary { background: rgba(245,158,11,0.15); color: var(--secondary-dark); }
        .badge-hot { background: rgba(239,68,68,0.12); color: var(--accent); }
        .badge-new { background: rgba(16,185,129,0.12); color: #059669; }

        /* ===== Card ===== */
        .card {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border);
            transition: var(--transition);
            overflow: hidden;
        }
        .card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-4px);
        }
        .card-img {
            width: 100%;
            aspect-ratio: 16/9;
            object-fit: cover;
            display: block;
        }
        .card-body { padding: 1.25rem 1.5rem 1.5rem; }
        .card-title {
            font-size: 1.05rem;
            font-weight: 700;
            margin-bottom: 0.5rem;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .card-text {
            font-size: 0.875rem;
            color: var(--text-secondary);
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            margin-bottom: 0.75rem;
        }
        .card-meta {
            display: flex;
            align-items: center;
            gap: 0.75rem;
            font-size: 0.8rem;
            color: var(--text-light);
        }
        .card-meta i { margin-right: 0.25rem; }
        .card-tags { display: flex; flex-wrap: wrap; gap: 0.4rem; margin-bottom: 0.75rem; }

        /* ===== Grid ===== */
        .grid-2 { display: grid; grid-template-columns: repeat(2,1fr); gap: var(--grid-gap); }
        .grid-3 { display: grid; grid-template-columns: repeat(3,1fr); gap: var(--grid-gap); }
        .grid-4 { display: grid; grid-template-columns: repeat(4,1fr); gap: var(--grid-gap); }
        .grid-auto { display: grid; grid-template-columns: repeat(auto-fill,minmax(280px,1fr)); gap: var(--grid-gap); }

        /* ===== Header / Nav ===== */
        .header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            height: var(--header-h);
            background: rgba(255,255,255,0.92);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid var(--border);
            box-shadow: 0 1px 4px rgba(15,23,42,0.04);
        }
        .header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
        }
        .header-logo {
            display: flex;
            align-items: center;
            gap: 0.5rem;
            font-size: 1.35rem;
            font-weight: 800;
            color: var(--primary);
            flex-shrink: 0;
        }
        .header-logo i { font-size: 1.5rem; color: var(--secondary); }
        .header-logo:hover { color: var(--primary-light); }
        .header-nav {
            display: flex;
            align-items: center;
            gap: 0.25rem;
            margin: 0 1.5rem;
        }
        .header-nav a {
            padding: 0.5rem 1rem;
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--text-secondary);
            border-radius: var(--radius-sm);
            transition: var(--transition);
        }
        .header-nav a:hover { color: var(--primary); background: rgba(37,99,235,0.06); }
        .header-nav a.active {
            color: var(--primary);
            background: rgba(37,99,235,0.1);
            font-weight: 600;
        }
        .header-actions {
            display: flex;
            align-items: center;
            gap: 0.75rem;
            flex-shrink: 0;
        }
        .header-search {
            display: flex;
            align-items: center;
            background: var(--bg-gray);
            border-radius: var(--radius-full);
            padding: 0 1rem;
            height: 40px;
            border: 1px solid transparent;
            transition: var(--transition);
            min-width: 180px;
        }
        .header-search:focus-within {
            border-color: var(--primary-light);
            background: var(--bg-white);
            box-shadow: 0 0 0 3px rgba(37,99,235,0.1);
        }
        .header-search i { color: var(--text-light); font-size: 0.875rem; margin-right: 0.5rem; }
        .header-search input {
            border: none;
            background: transparent;
            outline: none;
            width: 100%;
            font-size: 0.875rem;
            color: var(--text-primary);
        }
        .header-search input::placeholder { color: var(--text-light); }
        .header-mobile-toggle { display: none; font-size: 1.5rem; color: var(--text-primary); padding: 0.25rem; }

        /* ===== Mobile Nav ===== */
        .mobile-nav {
            display: none;
            position: fixed;
            top: var(--header-h);
            left: 0;
            right: 0;
            background: var(--bg-white);
            border-bottom: 1px solid var(--border);
            box-shadow: var(--shadow-lg);
            padding: 1rem 1.5rem;
            z-index: 999;
            flex-direction: column;
            gap: 0.5rem;
        }
        .mobile-nav.open { display: flex; }
        .mobile-nav a {
            padding: 0.75rem 1rem;
            font-size: 1rem;
            font-weight: 500;
            color: var(--text-secondary);
            border-radius: var(--radius-sm);
        }
        .mobile-nav a:hover { background: var(--bg-gray); color: var(--primary); }
        .mobile-nav a.active { color: var(--primary); background: rgba(37,99,235,0.08); font-weight: 600; }

        /* ===== Hero ===== */
        .hero {
            padding: calc(var(--header-h) + 2.5rem) 0 4rem;
            background: var(--bg-dark) url('/assets/images/backpic/back-1.png') center center / cover no-repeat;
            position: relative;
            min-height: 520px;
            display: flex;
            align-items: center;
        }
        .hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(15,23,42,0.82) 0%, rgba(30,58,138,0.7) 100%);
            z-index: 1;
        }
        .hero .container { position: relative; z-index: 2; width: 100%; }
        .hero-content { max-width: 680px; }
        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 0.4rem;
            background: rgba(255,255,255,0.12);
            backdrop-filter: blur(8px);
            padding: 0.35rem 1rem 0.35rem 0.75rem;
            border-radius: var(--radius-full);
            font-size: 0.8rem;
            color: var(--text-white);
            margin-bottom: 1.25rem;
            border: 1px solid rgba(255,255,255,0.15);
        }
        .hero-badge i { color: var(--secondary); }
        .hero h1 {
            color: var(--text-white);
            font-weight: 900;
            margin-bottom: 1rem;
            letter-spacing: -0.02em;
        }
        .hero h1 span { color: var(--secondary); }
        .hero p {
            color: rgba(255,255,255,0.8);
            font-size: 1.125rem;
            max-width: 540px;
            margin-bottom: 2rem;
            line-height: 1.7;
        }
        .hero-actions { display: flex; flex-wrap: wrap; gap: 0.75rem; }
        .hero-stats {
            display: flex;
            gap: 2.5rem;
            margin-top: 2.5rem;
            padding-top: 2rem;
            border-top: 1px solid rgba(255,255,255,0.12);
        }
        .hero-stat h3 { color: var(--text-white); font-size: 1.75rem; font-weight: 800; }
        .hero-stat h3 i { color: var(--secondary); font-size: 1.25rem; margin-right: 0.25rem; }
        .hero-stat p { color: rgba(255,255,255,0.6); font-size: 0.8rem; margin: 0; }

        /* ===== Features ===== */
        .features { background: var(--bg-white); }
        .feature-card {
            text-align: center;
            padding: 2rem 1.5rem;
            border-radius: var(--radius-md);
            background: var(--bg-body);
            border: 1px solid var(--border);
            transition: var(--transition);
        }
        .feature-card:hover {
            background: var(--bg-white);
            border-color: var(--primary-light);
            box-shadow: var(--shadow-md);
            transform: translateY(-3px);
        }
        .feature-icon {
            width: 64px;
            height: 64px;
            margin: 0 auto 1rem;
            border-radius: var(--radius-md);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.5rem;
            color: var(--primary);
            background: rgba(37,99,235,0.1);
        }
        .feature-card h3 { font-size: 1.1rem; margin-bottom: 0.5rem; }
        .feature-card p { font-size: 0.875rem; margin: 0; }

        /* ===== Categories ===== */
        .categories { background: var(--bg-gray); }
        .cat-card {
            position: relative;
            border-radius: var(--radius-md);
            overflow: hidden;
            aspect-ratio: 16/10;
            display: flex;
            align-items: flex-end;
            background: var(--bg-dark);
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
            cursor: pointer;
        }
        .cat-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); }
        .cat-card img {
            position: absolute;
            inset: 0;
            width: 100%;
            height: 100%;
            object-fit: cover;
            opacity: 0.6;
            transition: var(--transition);
        }
        .cat-card:hover img { opacity: 0.45; transform: scale(1.05); }
        .cat-card-overlay {
            position: relative;
            z-index: 2;
            padding: 1.5rem;
            width: 100%;
            background: linear-gradient(transparent, rgba(0,0,0,0.7));
        }
        .cat-card-overlay h3 { color: var(--text-white); font-size: 1.1rem; margin-bottom: 0.25rem; }
        .cat-card-overlay p { color: rgba(255,255,255,0.7); font-size: 0.8rem; margin: 0; }
        .cat-card .badge {
            position: absolute;
            top: 1rem;
            right: 1rem;
            z-index: 3;
            background: rgba(255,255,255,0.9);
            color: var(--text-primary);
            font-size: 0.7rem;
        }

        /* ===== Latest / CMS List ===== */
        .latest { background: var(--bg-white); }
        .latest-card .card-img { aspect-ratio: 16/9; }
        .latest-empty {
            text-align: center;
            padding: 3rem 1.5rem;
            color: var(--text-light);
            font-size: 1rem;
            background: var(--bg-gray);
            border-radius: var(--radius-md);
        }
        .latest-empty i { font-size: 2.5rem; margin-bottom: 1rem; display: block; color: var(--text-light); }

        /* ===== Process ===== */
        .process { background: var(--bg-gray); }
        .process-step {
            display: flex;
            flex-direction: column;
            align-items: center;
            text-align: center;
            position: relative;
        }
        .process-step:not(:last-child)::after {
            content: '';
            position: absolute;
            top: 28px;
            right: -50%;
            width: 100%;
            height: 2px;
            background: var(--border);
            z-index: 0;
        }
        .process-step:not(:last-child)::after { display: none; }
        .step-num {
            width: 56px;
            height: 56px;
            border-radius: 50%;
            background: var(--primary);
            color: var(--text-white);
            font-size: 1.25rem;
            font-weight: 800;
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 1rem;
            position: relative;
            z-index: 1;
            box-shadow: 0 0 0 4px var(--bg-gray), 0 0 0 6px var(--primary);
        }
        .process-step h3 { font-size: 1rem; margin-bottom: 0.35rem; }
        .process-step p { font-size: 0.85rem; margin: 0; max-width: 200px; }

        .process-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
            gap: 2rem;
            position: relative;
        }

        /* ===== Hot Events ===== */
        .hot-events { background: var(--bg-white); }
        .event-card {
            display: flex;
            gap: 1rem;
            padding: 1.25rem;
            border-radius: var(--radius-md);
            background: var(--bg-body);
            border: 1px solid var(--border);
            transition: var(--transition);
            align-items: flex-start;
        }
        .event-card:hover {
            background: var(--bg-white);
            border-color: var(--primary-light);
            box-shadow: var(--shadow-md);
            transform: translateY(-2px);
        }
        .event-rank {
            font-size: 1.5rem;
            font-weight: 800;
            color: var(--text-light);
            min-width: 36px;
            text-align: center;
            line-height: 1;
        }
        .event-rank.top { color: var(--secondary); }
        .event-info { flex: 1; }
        .event-info h4 { font-size: 0.95rem; font-weight: 600; margin-bottom: 0.25rem; }
        .event-info p { font-size: 0.8rem; color: var(--text-light); margin: 0; }
        .event-meta {
            display: flex;
            gap: 0.75rem;
            margin-top: 0.5rem;
            font-size: 0.75rem;
            color: var(--text-light);
        }
        .event-meta i { margin-right: 0.2rem; }

        /* ===== CTA ===== */
        .cta {
            background: var(--bg-dark) url('/assets/images/backpic/back-2.png') center center / cover no-repeat;
            position: relative;
            padding: 5rem 0;
        }
        .cta::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(15,23,42,0.85) 0%, rgba(26,58,138,0.75) 100%);
            z-index: 1;
        }
        .cta .container { position: relative; z-index: 2; text-align: center; }
        .cta h2 { color: var(--text-white); font-weight: 800; margin-bottom: 0.75rem; }
        .cta p { color: rgba(255,255,255,0.75); max-width: 520px; margin: 0 auto 1.75rem; font-size: 1.05rem; }
        .cta-actions { display: flex; flex-wrap: wrap; justify-content: center; gap: 0.75rem; }

        /* ===== FAQ ===== */
        .faq { background: var(--bg-gray); }
        .faq-item {
            background: var(--bg-white);
            border-radius: var(--radius-md);
            border: 1px solid var(--border);
            padding: 1.25rem 1.5rem;
            margin-bottom: 0.75rem;
            transition: var(--transition);
        }
        .faq-item:hover { border-color: var(--primary-light); box-shadow: var(--shadow-sm); }
        .faq-q {
            display: flex;
            justify-content: space-between;
            align-items: center;
            font-weight: 600;
            font-size: 1rem;
            cursor: pointer;
            gap: 1rem;
        }
        .faq-q i { color: var(--text-light); transition: var(--transition); font-size: 0.875rem; }
        .faq-item.open .faq-q i { transform: rotate(180deg); color: var(--primary); }
        .faq-a {
            margin-top: 0.75rem;
            padding-top: 0.75rem;
            border-top: 1px solid var(--border);
            font-size: 0.9rem;
            color: var(--text-secondary);
            line-height: 1.7;
            display: none;
        }
        .faq-item.open .faq-a { display: block; }

        /* ===== Footer ===== */
        .footer {
            background: var(--bg-dark);
            color: rgba(255,255,255,0.7);
            padding: 3rem 0 1.5rem;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 2.5rem;
            margin-bottom: 2rem;
        }
        .footer-brand .header-logo { color: var(--text-white); margin-bottom: 0.75rem; }
        .footer-brand p { font-size: 0.85rem; color: rgba(255,255,255,0.55); max-width: 300px; }
        .footer-col h4 { color: var(--text-white); font-size: 0.9rem; font-weight: 600; margin-bottom: 1rem; }
        .footer-col a {
            display: block;
            padding: 0.3rem 0;
            font-size: 0.85rem;
            color: rgba(255,255,255,0.55);
        }
        .footer-col a:hover { color: var(--secondary); }
        .footer-bottom {
            border-top: 1px solid rgba(255,255,255,0.08);
            padding-top: 1.5rem;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 1rem;
            font-size: 0.8rem;
            color: rgba(255,255,255,0.4);
        }
        .footer-bottom a { color: rgba(255,255,255,0.5); }
        .footer-bottom a:hover { color: var(--secondary); }
        .footer-social { display: flex; gap: 0.75rem; }
        .footer-social a {
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: rgba(255,255,255,0.06);
            display: flex;
            align-items: center;
            justify-content: center;
            color: rgba(255,255,255,0.5);
            font-size: 0.9rem;
            transition: var(--transition);
        }
        .footer-social a:hover { background: var(--secondary); color: var(--text-white); }

        /* ===== Back to Top ===== */
        .back-top {
            position: fixed;
            bottom: 2rem;
            right: 2rem;
            width: 44px;
            height: 44px;
            border-radius: 50%;
            background: var(--primary);
            color: var(--text-white);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.1rem;
            box-shadow: var(--shadow-lg);
            z-index: 100;
            opacity: 0;
            transform: translateY(20px);
            transition: var(--transition);
            pointer-events: none;
        }
        .back-top.visible { opacity: 1; transform: translateY(0); pointer-events: auto; }
        .back-top:hover { background: var(--primary-light); transform: translateY(-3px); box-shadow: var(--shadow-xl); }

        /* ===== Focus & Accessibility ===== */
        a:focus-visible, button:focus-visible, input:focus-visible {
            outline: 3px solid var(--primary-light);
            outline-offset: 2px;
        }

        /* ===== Responsive ===== */
        @media (max-width: 1024px) {
            .footer-grid { grid-template-columns: 1fr 1fr; }
            .header-nav { gap: 0; }
            .header-search { min-width: 140px; }
        }
        @media (max-width: 768px) {
            .header-nav { display: none; }
            .header-actions .btn { display: none; }
            .header-mobile-toggle { display: block; }
            .header-search { min-width: 120px; }
            .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
            .hero { min-height: 420px; padding-top: calc(var(--header-h) + 1.5rem); padding-bottom: 2.5rem; }
            .hero-stats { gap: 1.5rem; flex-wrap: wrap; }
            .hero-stat h3 { font-size: 1.25rem; }
            .section { padding: 2.5rem 0; }
            .process-grid { grid-template-columns: 1fr 1fr; gap: 1.5rem; }
            .footer-grid { grid-template-columns: 1fr; gap: 1.5rem; }
            .footer-bottom { flex-direction: column; text-align: center; }
            .back-top { bottom: 1.25rem; right: 1.25rem; width: 40px; height: 40px; font-size: 1rem; }
        }
        @media (max-width: 520px) {
            :root { --container-pad: 1rem; }
            .header-logo { font-size: 1.1rem; }
            .header-logo i { font-size: 1.2rem; }
            .header-search { min-width: 100px; }
            .header-search input { width: 80px; }
            .hero h1 { font-size: 1.75rem; }
            .hero p { font-size: 0.95rem; }
            .hero-actions .btn { width: 100%; justify-content: center; }
            .process-grid { grid-template-columns: 1fr; }
            .event-card { flex-direction: column; align-items: flex-start; }
            .event-rank { text-align: left; }
            .cta { padding: 3rem 0; }
            .faq-q { font-size: 0.9rem; }
        }

        /* ===== Skeleton / Extra ===== */
        .divider { height: 1px; background: var(--border); margin: 2rem 0; }
        .mt-1 { margin-top: 1rem; }
        .mt-2 { margin-top: 2rem; }
        .mb-1 { margin-bottom: 1rem; }
        .gap-1 { gap: 1rem; }
        .flex-center { display: flex; align-items: center; justify-content: center; }
        .flex-wrap { flex-wrap: wrap; }
        .w-full { width: 100%; }

        /* ===== Cover image helper ===== */
        .cover-img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        /* Hot events grid */
        .events-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
            gap: var(--grid-gap);
        }

        /* Category page banner placeholder (共用) */
        .page-banner {
            padding: calc(var(--header-h) + 2.5rem) 0 2.5rem;
            background: var(--bg-dark) url('/assets/images/backpic/back-3.png') center center / cover no-repeat;
            position: relative;
        }
        .page-banner::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(15,23,42,0.8) 0%, rgba(26,58,138,0.65) 100%);
            z-index: 1;
        }
        .page-banner .container { position: relative; z-index: 2; }
        .page-banner h1 { color: var(--text-white); font-size: clamp(1.5rem, 3vw, 2rem); }
        .page-banner p { color: rgba(255,255,255,0.7); max-width: 500px; }

/* roulang page: article */
:root {
        --primary: #0f0f1a;
        --primary-light: #1a1a2e;
        --accent: #f0c040;
        --accent-hover: #e0b030;
        --accent-glow: rgba(240, 192, 64, 0.25);
        --secondary: #e94560;
        --secondary-hover: #d63850;
        --bg: #f5f5f0;
        --bg-card: #ffffff;
        --bg-dark: #0a0a14;
        --text: #1a1a2e;
        --text-light: #6b6b80;
        --text-white: #f0f0f0;
        --border: #e0e0e0;
        --border-light: #f0f0f0;
        --radius: 12px;
        --radius-sm: 8px;
        --radius-lg: 20px;
        --shadow: 0 4px 24px rgba(0,0,0,0.06);
        --shadow-hover: 0 12px 40px rgba(0,0,0,0.10);
        --shadow-glow: 0 0 40px rgba(240,192,64,0.12);
        --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        --font: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, 'Noto Sans SC', sans-serif;
        --max-width: 1200px;
        --header-height: 72px;
    }
    *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
    html { scroll-behavior: smooth; -webkit-font-smoothing: antialiased; }
    body {
        font-family: var(--font);
        background: var(--bg);
        color: var(--text);
        line-height: 1.7;
        font-size: 16px;
    }
    a { color: var(--primary); text-decoration: none; transition: var(--transition); }
    a:hover { color: var(--accent-hover); }
    img { max-width: 100%; height: auto; display: block; border-radius: var(--radius-sm); }
    button, input, textarea { font-family: inherit; font-size: inherit; outline: none; border: none; }
    .container { max-width: var(--max-width); margin: 0 auto; padding: 0 24px; width: 100%; }

    /* header */
    .header {
        position: fixed; top: 0; left: 0; right: 0; z-index: 1000;
        background: rgba(15, 15, 26, 0.92); backdrop-filter: blur(20px);
        border-bottom: 1px solid rgba(255,255,255,0.06);
        height: var(--header-height);
        transition: var(--transition);
    }
    .header.scrolled { background: rgba(15, 15, 26, 0.98); box-shadow: 0 4px 30px rgba(0,0,0,0.3); }
    .header-inner {
        display: flex; align-items: center; justify-content: space-between;
        height: var(--header-height); gap: 16px;
    }
    .header-logo {
        display: flex; align-items: center; gap: 10px;
        font-size: 1.5rem; font-weight: 800; color: #fff;
        letter-spacing: -0.5px; flex-shrink: 0;
    }
    .header-logo i { color: var(--accent); font-size: 1.6rem; }
    .header-logo span { background: linear-gradient(135deg, #fff 60%, var(--accent)); -webkit-background-clip: text; -webkit-text-fill-color: transparent; }
    .header-nav { display: flex; align-items: center; gap: 6px; }
    .header-nav a {
        padding: 8px 18px; border-radius: 50px; font-size: 0.9rem;
        font-weight: 500; color: rgba(255,255,255,0.7);
        transition: var(--transition); position: relative;
        letter-spacing: 0.3px;
    }
    .header-nav a:hover { color: #fff; background: rgba(255,255,255,0.08); }
    .header-nav a.active { color: #fff; background: var(--accent); color: var(--primary); font-weight: 600; }
    .header-actions { display: flex; align-items: center; gap: 12px; flex-shrink: 0; }
    .header-search {
        display: flex; align-items: center; background: rgba(255,255,255,0.08);
        border-radius: 50px; padding: 0 16px; height: 40px;
        border: 1px solid rgba(255,255,255,0.06); transition: var(--transition);
    }
    .header-search:focus-within { background: rgba(255,255,255,0.12); border-color: var(--accent); }
    .header-search i { color: rgba(255,255,255,0.4); font-size: 0.9rem; }
    .header-search input {
        background: transparent; border: none; color: #fff; padding: 0 10px;
        width: 140px; font-size: 0.85rem; height: 100%;
    }
    .header-search input::placeholder { color: rgba(255,255,255,0.35); }
    .header-search input:focus { width: 180px; }
    .btn-header {
        padding: 8px 22px; border-radius: 50px; font-weight: 600; font-size: 0.85rem;
        background: var(--accent); color: var(--primary); transition: var(--transition);
        cursor: pointer; border: none; letter-spacing: 0.3px;
    }
    .btn-header:hover { background: var(--accent-hover); transform: translateY(-1px); box-shadow: 0 8px 24px var(--accent-glow); }
    .mobile-toggle { display: none; background: none; color: #fff; font-size: 1.4rem; cursor: pointer; padding: 8px; }

    /* article hero */
    .article-hero {
        margin-top: var(--header-height);
        position: relative; overflow: hidden;
        min-height: 380px; display: flex; align-items: flex-end;
        background: var(--bg-dark);
    }
    .article-hero-bg {
        position: absolute; inset: 0;
        background: url('/assets/images/backpic/back-2.png') center center / cover no-repeat;
        opacity: 0.35; filter: saturate(0.7);
    }
    .article-hero-overlay {
        position: absolute; inset: 0;
        background: linear-gradient(180deg, rgba(15,15,26,0.3) 0%, rgba(15,15,26,0.85) 70%, var(--bg-dark) 100%);
    }
    .article-hero .container { position: relative; z-index: 2; padding-bottom: 48px; padding-top: 80px; }
    .article-breadcrumb {
        display: flex; align-items: center; gap: 8px; flex-wrap: wrap;
        font-size: 0.85rem; color: rgba(255,255,255,0.5); margin-bottom: 20px;
    }
    .article-breadcrumb a { color: rgba(255,255,255,0.6); }
    .article-breadcrumb a:hover { color: var(--accent); }
    .article-breadcrumb .sep { color: rgba(255,255,255,0.25); }
    .article-breadcrumb .current { color: rgba(255,255,255,0.8); }
    .article-hero-cat {
        display: inline-block; padding: 4px 16px; border-radius: 50px;
        background: var(--accent); color: var(--primary); font-size: 0.8rem;
        font-weight: 600; letter-spacing: 0.5px; margin-bottom: 16px;
    }
    .article-hero h1 {
        font-size: 2.6rem; font-weight: 800; color: #fff;
        line-height: 1.25; letter-spacing: -0.5px; max-width: 800px;
        margin-bottom: 20px;
    }
    .article-meta {
        display: flex; align-items: center; gap: 24px; flex-wrap: wrap;
        color: rgba(255,255,255,0.6); font-size: 0.9rem;
    }
    .article-meta i { margin-right: 6px; font-size: 0.85rem; }
    .article-meta span { display: flex; align-items: center; }

    /* article body */
    .article-body { padding: 48px 0 64px; }
    .article-layout {
        display: grid; grid-template-columns: 1fr 320px; gap: 48px;
        align-items: start;
    }
    .article-main { min-width: 0; }
    .article-content {
        background: var(--bg-card); border-radius: var(--radius);
        padding: 40px 44px; box-shadow: var(--shadow);
        border: 1px solid var(--border-light);
        font-size: 1.05rem; line-height: 1.9; color: var(--text);
    }
    .article-content p { margin-bottom: 1.4em; }
    .article-content h2 { font-size: 1.6rem; font-weight: 700; margin: 1.8em 0 0.8em; color: var(--primary); }
    .article-content h3 { font-size: 1.25rem; font-weight: 600; margin: 1.6em 0 0.6em; color: var(--primary); }
    .article-content img { margin: 1.5em 0; border-radius: var(--radius-sm); box-shadow: var(--shadow); }
    .article-content ul, .article-content ol { margin: 1em 0 1em 1.8em; }
    .article-content li { margin-bottom: 0.4em; }
    .article-content blockquote {
        border-left: 4px solid var(--accent); background: rgba(240,192,64,0.06);
        padding: 16px 24px; margin: 1.5em 0; border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
        color: var(--text-light); font-style: italic;
    }
    .article-content a { color: var(--secondary); border-bottom: 1px solid transparent; }
    .article-content a:hover { border-bottom-color: var(--secondary); }
    .article-tags {
        display: flex; flex-wrap: wrap; gap: 10px; margin-top: 32px; padding-top: 24px;
        border-top: 1px solid var(--border-light);
    }
    .article-tags .tag {
        padding: 6px 16px; border-radius: 50px; font-size: 0.8rem;
        background: rgba(15,15,26,0.04); color: var(--text-light);
        border: 1px solid var(--border); transition: var(--transition);
        font-weight: 500;
    }
    .article-tags .tag:hover { background: var(--accent); color: var(--primary); border-color: var(--accent); }
    .article-share {
        display: flex; align-items: center; gap: 12px; margin-top: 24px; padding-top: 20px;
        border-top: 1px solid var(--border-light);
    }
    .article-share span { font-size: 0.9rem; color: var(--text-light); font-weight: 500; }
    .article-share a {
        display: flex; align-items: center; justify-content: center;
        width: 40px; height: 40px; border-radius: 50%;
        background: rgba(15,15,26,0.04); color: var(--text-light);
        border: 1px solid var(--border); transition: var(--transition);
        font-size: 1rem;
    }
    .article-share a:hover { background: var(--accent); color: var(--primary); border-color: var(--accent); transform: translateY(-2px); }

    /* sidebar */
    .article-sidebar { display: flex; flex-direction: column; gap: 32px; }
    .sidebar-card {
        background: var(--bg-card); border-radius: var(--radius);
        padding: 28px; box-shadow: var(--shadow);
        border: 1px solid var(--border-light);
    }
    .sidebar-card h3 {
        font-size: 1.05rem; font-weight: 700; margin-bottom: 20px;
        padding-bottom: 12px; border-bottom: 2px solid var(--accent);
        display: flex; align-items: center; gap: 8px;
    }
    .sidebar-card h3 i { color: var(--accent); font-size: 1rem; }
    .sidebar-list { list-style: none; display: flex; flex-direction: column; gap: 12px; }
    .sidebar-list li { padding: 0; }
    .sidebar-list a {
        display: flex; gap: 12px; align-items: flex-start;
        padding: 10px 0; border-bottom: 1px solid var(--border-light);
        transition: var(--transition); color: var(--text);
    }
    .sidebar-list a:last-child { border-bottom: none; }
    .sidebar-list a:hover { color: var(--secondary); padding-left: 4px; }
    .sidebar-list .thumb {
        width: 64px; height: 48px; border-radius: 6px; object-fit: cover; flex-shrink: 0;
        background: var(--border);
    }
    .sidebar-list .info { flex: 1; min-width: 0; }
    .sidebar-list .info .title { font-size: 0.9rem; font-weight: 600; line-height: 1.4; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
    .sidebar-list .info .date { font-size: 0.75rem; color: var(--text-light); margin-top: 4px; }
    .sidebar-tags { display: flex; flex-wrap: wrap; gap: 8px; }
    .sidebar-tags a {
        padding: 6px 14px; border-radius: 50px; font-size: 0.8rem;
        background: rgba(15,15,26,0.04); color: var(--text-light);
        border: 1px solid var(--border); transition: var(--transition);
        font-weight: 500;
    }
    .sidebar-tags a:hover { background: var(--accent); color: var(--primary); border-color: var(--accent); }

    /* related */
    .related-section { padding: 48px 0 64px; background: var(--bg-card); border-top: 1px solid var(--border-light); }
    .related-section .section-title {
        font-size: 1.5rem; font-weight: 700; margin-bottom: 32px;
        display: flex; align-items: center; gap: 12px;
    }
    .related-section .section-title i { color: var(--accent); }
    .related-grid {
        display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px;
    }
    .related-card {
        background: var(--bg); border-radius: var(--radius); overflow: hidden;
        border: 1px solid var(--border-light); transition: var(--transition);
    }
    .related-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-hover); }
    .related-card img { width: 100%; height: 180px; object-fit: cover; border-radius: 0; }
    .related-card-body { padding: 20px 24px 24px; }
    .related-card-body .cat { font-size: 0.75rem; color: var(--secondary); font-weight: 600; text-transform: uppercase; letter-spacing: 0.5px; margin-bottom: 8px; display: block; }
    .related-card-body h4 { font-size: 1.05rem; font-weight: 600; line-height: 1.4; margin-bottom: 8px; }
    .related-card-body h4 a { color: var(--text); }
    .related-card-body h4 a:hover { color: var(--secondary); }
    .related-card-body p { font-size: 0.88rem; color: var(--text-light); line-height: 1.6; }
    .related-card-body .meta { font-size: 0.78rem; color: var(--text-light); margin-top: 12px; }

    /* not found */
    .not-found-box {
        text-align: center; padding: 80px 24px; max-width: 600px; margin: 0 auto;
    }
    .not-found-box i { font-size: 4rem; color: var(--border); margin-bottom: 24px; display: block; }
    .not-found-box h2 { font-size: 1.8rem; font-weight: 700; margin-bottom: 12px; }
    .not-found-box p { color: var(--text-light); font-size: 1.05rem; margin-bottom: 24px; }
    .not-found-box .btn-back {
        display: inline-flex; align-items: center; gap: 8px;
        padding: 12px 32px; border-radius: 50px; font-weight: 600;
        background: var(--accent); color: var(--primary); transition: var(--transition);
    }
    .not-found-box .btn-back:hover { background: var(--accent-hover); transform: translateY(-2px); box-shadow: 0 8px 24px var(--accent-glow); }

    /* footer */
    .footer {
        background: var(--primary); color: rgba(255,255,255,0.7);
        padding: 56px 0 32px; border-top: 1px solid rgba(255,255,255,0.05);
    }
    .footer-grid { display: grid; grid-template-columns: 1.6fr 1fr 1fr 1fr; gap: 40px; margin-bottom: 40px; }
    .footer-brand .header-logo { margin-bottom: 16px; }
    .footer-brand p { font-size: 0.9rem; line-height: 1.7; color: rgba(255,255,255,0.5); max-width: 320px; }
    .footer-col h4 { font-size: 0.95rem; font-weight: 600; color: #fff; margin-bottom: 20px; }
    .footer-col a {
        display: block; font-size: 0.88rem; color: rgba(255,255,255,0.5);
        padding: 5px 0; transition: var(--transition);
    }
    .footer-col a:hover { color: var(--accent); padding-left: 4px; }
    .footer-social { display: flex; gap: 12px; margin-top: 12px; }
    .footer-social a {
        width: 38px; height: 38px; border-radius: 50%; display: flex;
        align-items: center; justify-content: center;
        background: rgba(255,255,255,0.06); color: rgba(255,255,255,0.6);
        font-size: 1rem; transition: var(--transition); padding: 0;
    }
    .footer-social a:hover { background: var(--accent); color: var(--primary); padding: 0; transform: translateY(-2px); }
    .footer-bottom {
        border-top: 1px solid rgba(255,255,255,0.06); padding-top: 24px;
        display: flex; justify-content: space-between; flex-wrap: wrap; gap: 12px;
        font-size: 0.82rem; color: rgba(255,255,255,0.35);
    }
    .footer-bottom a { color: rgba(255,255,255,0.4); }
    .footer-bottom a:hover { color: var(--accent); }

    /* responsiveness */
    @media (max-width: 1024px) {
        .article-layout { grid-template-columns: 1fr 280px; gap: 32px; }
        .article-hero h1 { font-size: 2.2rem; }
        .related-grid { grid-template-columns: repeat(2, 1fr); }
        .footer-grid { grid-template-columns: 1fr 1fr; }
    }
    @media (max-width: 768px) {
        .header-nav { display: none; }
        .header-search { display: none; }
        .mobile-toggle { display: block; }
        .header-nav.mobile-open {
            display: flex; flex-direction: column; position: absolute; top: var(--header-height);
            left: 0; right: 0; background: rgba(15,15,26,0.98); padding: 16px 24px 24px;
            border-bottom: 1px solid rgba(255,255,255,0.06); gap: 4px;
        }
        .header-nav.mobile-open a { width: 100%; padding: 12px 16px; border-radius: var(--radius-sm); }
        .article-hero { min-height: 280px; }
        .article-hero h1 { font-size: 1.6rem; }
        .article-layout { grid-template-columns: 1fr; gap: 32px; }
        .article-content { padding: 24px 20px; }
        .related-grid { grid-template-columns: 1fr; }
        .footer-grid { grid-template-columns: 1fr; gap: 32px; }
        .footer-bottom { flex-direction: column; text-align: center; }
        .article-meta { gap: 16px; font-size: 0.82rem; }
    }
    @media (max-width: 520px) {
        .container { padding: 0 16px; }
        .article-hero h1 { font-size: 1.3rem; }
        .article-content { padding: 16px; font-size: 0.95rem; }
        .article-hero .container { padding-bottom: 32px; padding-top: 60px; }
        .article-body { padding: 32px 0 48px; }
        .related-section { padding: 32px 0 48px; }
        .sidebar-card { padding: 20px; }
        .header-logo { font-size: 1.25rem; }
        .btn-header { padding: 6px 16px; font-size: 0.78rem; }
    }

/* roulang page: category1 */
/* ===== 设计变量 ===== */
        :root {
            --primary: #e63946;
            --primary-dark: #c52d39;
            --primary-light: #ff6b6b;
            --secondary: #1d3557;
            --secondary-light: #2d4a7a;
            --accent: #f4a261;
            --bg-body: #f8f9fc;
            --bg-white: #ffffff;
            --bg-dark: #0d1b2a;
            --bg-card: #ffffff;
            --text-primary: #1a1a2e;
            --text-secondary: #4a4a6a;
            --text-light: #6c6c8a;
            --text-white: #ffffff;
            --border: #e2e6ef;
            --border-light: #f0f2f6;
            --radius: 12px;
            --radius-sm: 8px;
            --radius-lg: 20px;
            --shadow: 0 4px 20px rgba(0, 0, 0, 0.06);
            --shadow-hover: 0 12px 40px rgba(0, 0, 0, 0.12);
            --shadow-nav: 0 2px 16px rgba(0, 0, 0, 0.06);
            --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --spacing-xs: 0.5rem;
            --spacing-sm: 1rem;
            --spacing-md: 2rem;
            --spacing-lg: 4rem;
            --spacing-xl: 6rem;
            --max-width: 1200px;
            --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif;
        }

        /* ===== Reset & Base ===== */
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }
        body {
            font-family: var(--font-family);
            font-size: 16px;
            line-height: 1.6;
            color: var(--text-primary);
            background: var(--bg-body);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        a {
            color: var(--primary);
            text-decoration: none;
            transition: color var(--transition);
        }
        a:hover {
            color: var(--primary-dark);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: var(--radius-sm);
        }
        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
            line-height: inherit;
        }
        ul,
        ol {
            list-style: none;
        }

        /* ===== 容器 ===== */
        .container {
            width: 100%;
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 var(--spacing-md);
        }

        /* ===== Header / 导航 ===== */
        .header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: var(--bg-white);
            border-bottom: 1px solid var(--border-light);
            box-shadow: var(--shadow-nav);
            backdrop-filter: blur(12px);
            background: rgba(255, 255, 255, 0.96);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 70px;
            gap: var(--spacing-sm);
        }
        .header-logo {
            display: flex;
            align-items: center;
            gap: 0.5rem;
            font-size: 1.35rem;
            font-weight: 800;
            color: var(--primary);
            white-space: nowrap;
            flex-shrink: 0;
        }
        .header-logo i {
            font-size: 1.6rem;
            color: var(--primary);
            background: rgba(230, 57, 70, 0.12);
            padding: 0.4rem;
            border-radius: 8px;
        }
        .header-logo span {
            background: linear-gradient(135deg, var(--primary), var(--primary-light));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .header-nav {
            display: flex;
            align-items: center;
            gap: 0.25rem;
            flex-wrap: nowrap;
            overflow-x: auto;
            -webkit-overflow-scrolling: touch;
            scrollbar-width: none;
        }
        .header-nav::-webkit-scrollbar {
            display: none;
        }
        .header-nav a {
            padding: 0.5rem 1.1rem;
            border-radius: 50px;
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--text-secondary);
            transition: all var(--transition);
            white-space: nowrap;
            position: relative;
        }
        .header-nav a:hover {
            color: var(--primary);
            background: rgba(230, 57, 70, 0.06);
        }
        .header-nav a.active {
            color: var(--bg-white);
            background: var(--primary);
            font-weight: 600;
            box-shadow: 0 4px 14px rgba(230, 57, 70, 0.3);
        }
        .header-nav a.active:hover {
            color: var(--bg-white);
            background: var(--primary-dark);
        }
        .header-actions {
            display: flex;
            align-items: center;
            gap: 0.75rem;
            flex-shrink: 0;
        }
        .header-search {
            display: flex;
            align-items: center;
            background: var(--bg-body);
            border-radius: 50px;
            padding: 0 0.75rem;
            border: 1px solid var(--border-light);
            transition: all var(--transition);
        }
        .header-search:focus-within {
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(230, 57, 70, 0.12);
        }
        .header-search input {
            border: none;
            background: transparent;
            padding: 0.5rem 0.5rem;
            font-size: 0.85rem;
            color: var(--text-primary);
            outline: none;
            min-width: 140px;
        }
        .header-search input::placeholder {
            color: var(--text-light);
        }
        .header-search button {
            border: none;
            background: transparent;
            color: var(--text-light);
            cursor: pointer;
            padding: 0.4rem;
            transition: color var(--transition);
        }
        .header-search button:hover {
            color: var(--primary);
        }
        .btn-header {
            padding: 0.5rem 1.2rem;
            border-radius: 50px;
            font-size: 0.85rem;
            font-weight: 600;
            border: none;
            cursor: pointer;
            transition: all var(--transition);
            white-space: nowrap;
            background: var(--primary);
            color: var(--bg-white);
            box-shadow: 0 4px 12px rgba(230, 57, 70, 0.25);
        }
        .btn-header:hover {
            background: var(--primary-dark);
            box-shadow: 0 6px 20px rgba(230, 57, 70, 0.35);
            transform: translateY(-1px);
            color: var(--bg-white);
        }
        .btn-header-outline {
            background: transparent;
            color: var(--text-secondary);
            box-shadow: none;
            border: 1px solid var(--border);
        }
        .btn-header-outline:hover {
            background: var(--bg-body);
            color: var(--primary);
            border-color: var(--primary);
            box-shadow: none;
            transform: none;
        }

        /* ===== Hero ===== */
        .hero-cat {
            position: relative;
            padding: var(--spacing-xl) 0 var(--spacing-lg);
            background: linear-gradient(135deg, var(--bg-dark) 0%, var(--secondary) 100%);
            overflow: hidden;
            min-height: 420px;
            display: flex;
            align-items: center;
        }
        .hero-cat::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-1.png') center center / cover no-repeat;
            opacity: 0.25;
            mix-blend-mode: overlay;
        }
        .hero-cat::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(13, 27, 42, 0.85) 0%, rgba(29, 53, 87, 0.75) 100%);
        }
        .hero-cat .container {
            position: relative;
            z-index: 2;
        }
        .hero-cat-badge {
            display: inline-flex;
            align-items: center;
            gap: 0.4rem;
            background: rgba(230, 57, 70, 0.2);
            backdrop-filter: blur(8px);
            padding: 0.35rem 1rem;
            border-radius: 50px;
            font-size: 0.8rem;
            font-weight: 600;
            color: var(--primary-light);
            border: 1px solid rgba(230, 57, 70, 0.25);
            margin-bottom: 1.2rem;
        }
        .hero-cat-badge i {
            font-size: 0.7rem;
        }
        .hero-cat h1 {
            font-size: 3rem;
            font-weight: 800;
            color: var(--text-white);
            line-height: 1.2;
            margin-bottom: 1rem;
            max-width: 720px;
        }
        .hero-cat h1 span {
            background: linear-gradient(135deg, var(--primary-light), var(--accent));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .hero-cat p {
            font-size: 1.1rem;
            color: rgba(255, 255, 255, 0.8);
            max-width: 600px;
            line-height: 1.7;
            margin-bottom: 1.8rem;
        }
        .hero-cat-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 0.75rem;
        }
        .hero-cat-actions .btn-primary {
            padding: 0.8rem 2rem;
            border-radius: 50px;
            font-size: 1rem;
            font-weight: 600;
            border: none;
            cursor: pointer;
            background: var(--primary);
            color: var(--bg-white);
            transition: all var(--transition);
            box-shadow: 0 6px 24px rgba(230, 57, 70, 0.35);
        }
        .hero-cat-actions .btn-primary:hover {
            background: var(--primary-dark);
            transform: translateY(-2px);
            box-shadow: 0 10px 32px rgba(230, 57, 70, 0.45);
            color: var(--bg-white);
        }
        .hero-cat-actions .btn-secondary {
            padding: 0.8rem 2rem;
            border-radius: 50px;
            font-size: 1rem;
            font-weight: 600;
            border: 1px solid rgba(255, 255, 255, 0.25);
            cursor: pointer;
            background: transparent;
            color: var(--text-white);
            transition: all var(--transition);
        }
        .hero-cat-actions .btn-secondary:hover {
            background: rgba(255, 255, 255, 0.1);
            border-color: rgba(255, 255, 255, 0.4);
            color: var(--bg-white);
        }
        .hero-cat-stats {
            display: flex;
            gap: 2.5rem;
            margin-top: 2.5rem;
            flex-wrap: wrap;
        }
        .hero-cat-stats .stat-item {
            text-align: center;
        }
        .hero-cat-stats .stat-item .num {
            font-size: 1.8rem;
            font-weight: 800;
            color: var(--text-white);
            line-height: 1.2;
        }
        .hero-cat-stats .stat-item .num small {
            font-size: 0.9rem;
            font-weight: 400;
            color: rgba(255, 255, 255, 0.6);
        }
        .hero-cat-stats .stat-item .label {
            font-size: 0.8rem;
            color: rgba(255, 255, 255, 0.55);
            margin-top: 0.2rem;
        }

        /* ===== 通用板块 ===== */
        .section {
            padding: var(--spacing-lg) 0;
        }
        .section-alt {
            background: var(--bg-white);
        }
        .section-dark {
            background: var(--bg-dark);
            color: var(--text-white);
        }
        .section-header {
            text-align: center;
            margin-bottom: var(--spacing-md);
        }
        .section-header h2 {
            font-size: 2.2rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 0.5rem;
        }
        .section-header p {
            font-size: 1.05rem;
            color: var(--text-light);
            max-width: 600px;
            margin: 0 auto;
        }
        .section-header.light h2 {
            color: var(--text-white);
        }
        .section-header.light p {
            color: rgba(255, 255, 255, 0.7);
        }
        .section-tag {
            display: inline-block;
            background: rgba(230, 57, 70, 0.1);
            color: var(--primary);
            padding: 0.2rem 1rem;
            border-radius: 50px;
            font-size: 0.8rem;
            font-weight: 600;
            margin-bottom: 0.75rem;
            letter-spacing: 0.5px;
        }

        /* ===== 特色卡片 ===== */
        .features-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: var(--spacing-md);
        }
        .feature-card {
            background: var(--bg-card);
            border-radius: var(--radius);
            padding: var(--spacing-md);
            box-shadow: var(--shadow);
            border: 1px solid var(--border-light);
            transition: all var(--transition);
            text-align: center;
        }
        .feature-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
        }
        .feature-card .icon {
            width: 60px;
            height: 60px;
            border-radius: 16px;
            background: rgba(230, 57, 70, 0.08);
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 1rem;
            font-size: 1.6rem;
            color: var(--primary);
            transition: all var(--transition);
        }
        .feature-card:hover .icon {
            background: var(--primary);
            color: var(--bg-white);
        }
        .feature-card h3 {
            font-size: 1.15rem;
            font-weight: 600;
            margin-bottom: 0.5rem;
        }
        .feature-card p {
            font-size: 0.92rem;
            color: var(--text-light);
            line-height: 1.6;
        }

        /* ===== 直播赛事卡片网格 ===== */
        .cards-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(270px, 1fr));
            gap: var(--spacing-md);
        }
        .live-card {
            background: var(--bg-card);
            border-radius: var(--radius);
            overflow: hidden;
            box-shadow: var(--shadow);
            border: 1px solid var(--border-light);
            transition: all var(--transition);
            cursor: pointer;
        }
        .live-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
        }
        .live-card .card-img {
            position: relative;
            height: 180px;
            overflow: hidden;
            background: var(--bg-dark);
        }
        .live-card .card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s ease;
        }
        .live-card:hover .card-img img {
            transform: scale(1.05);
        }
        .live-card .card-badge {
            position: absolute;
            top: 10px;
            left: 10px;
            background: var(--primary);
            color: var(--bg-white);
            padding: 0.2rem 0.7rem;
            border-radius: 50px;
            font-size: 0.7rem;
            font-weight: 600;
            display: flex;
            align-items: center;
            gap: 0.3rem;
            box-shadow: 0 2px 10px rgba(230, 57, 70, 0.4);
        }
        .live-card .card-badge i {
            font-size: 0.5rem;
            animation: pulse-dot 1.5s infinite;
        }
        @keyframes pulse-dot {
            0%,
            100% {
                opacity: 1;
            }
            50% {
                opacity: 0.3;
            }
        }
        .live-card .card-body {
            padding: 1rem 1.2rem 1.2rem;
        }
        .live-card .card-body .match {
            font-size: 1.05rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 0.3rem;
        }
        .live-card .card-body .league {
            font-size: 0.82rem;
            color: var(--text-light);
            font-weight: 500;
            display: flex;
            align-items: center;
            gap: 0.3rem;
        }
        .live-card .card-body .league i {
            color: var(--primary);
        }
        .live-card .card-body .meta {
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin-top: 0.8rem;
            padding-top: 0.8rem;
            border-top: 1px solid var(--border-light);
        }
        .live-card .card-body .meta .time {
            font-size: 0.8rem;
            color: var(--text-light);
        }
        .live-card .card-body .meta .status {
            font-size: 0.75rem;
            font-weight: 600;
            padding: 0.2rem 0.8rem;
            border-radius: 50px;
            background: rgba(46, 204, 113, 0.12);
            color: #27ae60;
        }
        .live-card .card-body .meta .status.live {
            background: rgba(230, 57, 70, 0.12);
            color: var(--primary);
        }
        .live-card .card-body .meta .status.upcoming {
            background: rgba(241, 196, 15, 0.12);
            color: #d4a017;
        }

        /* ===== 直播日程 ===== */
        .schedule-list {
            display: flex;
            flex-direction: column;
            gap: 0.75rem;
        }
        .schedule-item {
            display: flex;
            align-items: center;
            gap: 1.2rem;
            background: var(--bg-card);
            padding: 1rem 1.4rem;
            border-radius: var(--radius-sm);
            border: 1px solid var(--border-light);
            transition: all var(--transition);
        }
        .schedule-item:hover {
            background: var(--bg-body);
            border-color: var(--border);
        }
        .schedule-item .time {
            font-weight: 700;
            font-size: 0.95rem;
            color: var(--primary);
            min-width: 70px;
        }
        .schedule-item .info {
            flex: 1;
        }
        .schedule-item .info .match {
            font-weight: 600;
            font-size: 0.95rem;
        }
        .schedule-item .info .league {
            font-size: 0.78rem;
            color: var(--text-light);
        }
        .schedule-item .tag {
            font-size: 0.7rem;
            font-weight: 600;
            padding: 0.2rem 0.8rem;
            border-radius: 50px;
            background: rgba(230, 57, 70, 0.08);
            color: var(--primary);
        }

        /* ===== 数据统计 ===== */
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: var(--spacing-md);
        }
        .stat-card {
            text-align: center;
            padding: var(--spacing-md) var(--spacing-sm);
            background: rgba(255, 255, 255, 0.05);
            border-radius: var(--radius);
            border: 1px solid rgba(255, 255, 255, 0.08);
            transition: all var(--transition);
        }
        .stat-card:hover {
            background: rgba(255, 255, 255, 0.08);
            transform: translateY(-2px);
        }
        .stat-card .num {
            font-size: 2.4rem;
            font-weight: 800;
            color: var(--primary-light);
            line-height: 1.2;
        }
        .stat-card .label {
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.6);
            margin-top: 0.3rem;
        }

        /* ===== FAQ ===== */
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 0.75rem;
        }
        .faq-item {
            background: var(--bg-card);
            border-radius: var(--radius-sm);
            border: 1px solid var(--border-light);
            overflow: hidden;
            transition: all var(--transition);
        }
        .faq-item:hover {
            border-color: var(--border);
        }
        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 1rem 1.4rem;
            font-weight: 600;
            font-size: 0.98rem;
            cursor: pointer;
            color: var(--text-primary);
            transition: color var(--transition);
            user-select: none;
        }
        .faq-question:hover {
            color: var(--primary);
        }
        .faq-question i {
            color: var(--text-light);
            transition: transform var(--transition);
            font-size: 0.8rem;
        }
        .faq-item.open .faq-question i {
            transform: rotate(180deg);
            color: var(--primary);
        }
        .faq-answer {
            padding: 0 1.4rem 1rem;
            font-size: 0.92rem;
            color: var(--text-secondary);
            line-height: 1.7;
            display: none;
        }
        .faq-item.open .faq-answer {
            display: block;
        }

        /* ===== CTA ===== */
        .cta-section {
            background: linear-gradient(135deg, var(--secondary) 0%, var(--bg-dark) 100%);
            padding: var(--spacing-lg) 0;
            text-align: center;
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-2.png') center center / cover no-repeat;
            opacity: 0.1;
        }
        .cta-section .container {
            position: relative;
            z-index: 2;
        }
        .cta-section h2 {
            font-size: 2.4rem;
            font-weight: 700;
            color: var(--text-white);
            margin-bottom: 0.75rem;
        }
        .cta-section p {
            font-size: 1.05rem;
            color: rgba(255, 255, 255, 0.7);
            max-width: 600px;
            margin: 0 auto 1.8rem;
        }
        .cta-section .btn-cta {
            padding: 0.9rem 2.6rem;
            border-radius: 50px;
            font-size: 1.05rem;
            font-weight: 600;
            border: none;
            cursor: pointer;
            background: var(--primary);
            color: var(--bg-white);
            transition: all var(--transition);
            box-shadow: 0 8px 30px rgba(230, 57, 70, 0.4);
        }
        .cta-section .btn-cta:hover {
            background: var(--primary-dark);
            transform: translateY(-2px);
            box-shadow: 0 12px 40px rgba(230, 57, 70, 0.5);
            color: var(--bg-white);
        }

        /* ===== Footer ===== */
        .footer {
            background: var(--bg-dark);
            color: rgba(255, 255, 255, 0.8);
            padding: var(--spacing-lg) 0 0;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: var(--spacing-md);
            padding-bottom: var(--spacing-md);
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
        }
        .footer-brand .header-logo {
            margin-bottom: 0.75rem;
        }
        .footer-brand .header-logo i {
            background: rgba(230, 57, 70, 0.2);
        }
        .footer-brand p {
            font-size: 0.9rem;
            color: rgba(255, 255, 255, 0.55);
            line-height: 1.7;
            max-width: 360px;
        }
        .footer-col h4 {
            font-size: 0.95rem;
            font-weight: 600;
            color: var(--text-white);
            margin-bottom: 1rem;
        }
        .footer-col a {
            display: block;
            font-size: 0.88rem;
            color: rgba(255, 255, 255, 0.55);
            padding: 0.3rem 0;
            transition: all var(--transition);
        }
        .footer-col a:hover {
            color: var(--primary-light);
            padding-left: 4px;
        }
        .footer-social {
            display: flex;
            gap: 0.75rem;
        }
        .footer-social a {
            width: 38px;
            height: 38px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.06);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1rem;
            color: rgba(255, 255, 255, 0.5);
            padding: 0;
            transition: all var(--transition);
        }
        .footer-social a:hover {
            background: var(--primary);
            color: var(--bg-white);
            padding: 0;
            transform: translateY(-2px);
        }
        .footer-bottom {
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 0.75rem;
            padding: 1.2rem 0;
            font-size: 0.82rem;
            color: rgba(255, 255, 255, 0.35);
        }
        .footer-bottom a {
            color: rgba(255, 255, 255, 0.4);
        }
        .footer-bottom a:hover {
            color: var(--primary-light);
        }

        /* ===== 响应式 ===== */
        @media (max-width: 1024px) {
            .features-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .footer-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .hero-cat h1 {
                font-size: 2.4rem;
            }
        }

        @media (max-width: 768px) {
            :root {
                --spacing-lg: 2.5rem;
                --spacing-xl: 3.5rem;
            }
            .header-inner {
                height: 60px;
                gap: 0.5rem;
            }
            .header-logo span {
                font-size: 1rem;
            }
            .header-nav a {
                padding: 0.35rem 0.8rem;
                font-size: 0.8rem;
            }
            .header-search input {
                min-width: 80px;
                width: 80px;
            }
            .header-search {
                padding: 0 0.4rem;
            }
            .btn-header {
                padding: 0.35rem 0.9rem;
                font-size: 0.78rem;
            }
            .hero-cat {
                min-height: 320px;
                padding: var(--spacing-lg) 0 var(--spacing-md);
            }
            .hero-cat h1 {
                font-size: 1.8rem;
            }
            .hero-cat p {
                font-size: 0.95rem;
            }
            .hero-cat-stats {
                gap: 1.2rem;
                margin-top: 1.5rem;
            }
            .hero-cat-stats .stat-item .num {
                font-size: 1.3rem;
            }
            .features-grid {
                grid-template-columns: 1fr;
            }
            .section-header h2 {
                font-size: 1.6rem;
            }
            .cards-grid {
                grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
            }
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: var(--spacing-sm);
            }
            .stat-card .num {
                font-size: 1.6rem;
            }
            .schedule-item {
                flex-wrap: wrap;
                gap: 0.5rem;
                padding: 0.8rem 1rem;
            }
            .schedule-item .time {
                min-width: 55px;
                font-size: 0.85rem;
            }
            .cta-section h2 {
                font-size: 1.6rem;
            }
            .cta-section .btn-cta {
                padding: 0.7rem 2rem;
                font-size: 0.95rem;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: var(--spacing-sm);
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
            .header-actions .btn-header-outline {
                display: none;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding: 0 var(--spacing-sm);
            }
            .header-logo i {
                font-size: 1.2rem;
                padding: 0.3rem;
            }
            .header-logo span {
                font-size: 0.9rem;
            }
            .header-nav a {
                padding: 0.25rem 0.6rem;
                font-size: 0.72rem;
            }
            .header-search input {
                min-width: 60px;
                width: 60px;
                font-size: 0.75rem;
            }
            .btn-header {
                padding: 0.3rem 0.7rem;
                font-size: 0.72rem;
            }
            .hero-cat h1 {
                font-size: 1.4rem;
            }
            .hero-cat p {
                font-size: 0.85rem;
            }
            .hero-cat-stats .stat-item .num {
                font-size: 1.1rem;
            }
            .hero-cat-stats {
                gap: 0.8rem;
            }
            .section-header h2 {
                font-size: 1.3rem;
            }
            .feature-card {
                padding: var(--spacing-sm);
            }
            .feature-card .icon {
                width: 48px;
                height: 48px;
                font-size: 1.2rem;
            }
            .cards-grid {
                grid-template-columns: 1fr;
            }
            .live-card .card-img {
                height: 150px;
            }
            .stats-grid {
                grid-template-columns: 1fr 1fr;
                gap: 0.5rem;
            }
            .stat-card {
                padding: var(--spacing-sm) 0.5rem;
            }
            .stat-card .num {
                font-size: 1.4rem;
            }
            .faq-question {
                font-size: 0.88rem;
                padding: 0.8rem 1rem;
            }
            .faq-answer {
                padding: 0 1rem 0.8rem;
                font-size: 0.85rem;
            }
            .cta-section h2 {
                font-size: 1.3rem;
            }
            .cta-section p {
                font-size: 0.88rem;
            }
            .hero-cat-actions .btn-primary,
            .hero-cat-actions .btn-secondary {
                padding: 0.6rem 1.4rem;
                font-size: 0.85rem;
            }
            .schedule-item .info .match {
                font-size: 0.85rem;
            }
            .schedule-item .tag {
                font-size: 0.65rem;
            }
        }

        /* ===== 滚动条美化 ===== */
        ::-webkit-scrollbar {
            width: 6px;
            height: 6px;
        }
        ::-webkit-scrollbar-track {
            background: var(--bg-body);
        }
        ::-webkit-scrollbar-thumb {
            background: var(--border);
            border-radius: 10px;
        }
        ::-webkit-scrollbar-thumb:hover {
            background: var(--text-light);
        }

        /* ===== 通用辅助 ===== */
        .text-center {
            text-align: center;
        }
        .mt-sm {
            margin-top: var(--spacing-sm);
        }
        .mt-md {
            margin-top: var(--spacing-md);
        }
        .mb-sm {
            margin-bottom: var(--spacing-sm);
        }
        .mb-md {
            margin-bottom: var(--spacing-md);
        }
        .gap-sm {
            gap: var(--spacing-sm);
        }
        .flex-center {
            display: flex;
            align-items: center;
            justify-content: center;
        }