/* roulang page: index */
/* ===== 设计变量 ===== */
        :root {
            --primary: #c0392b;
            --primary-dark: #a93226;
            --primary-light: #e74c3c;
            --accent: #e8b830;
            --accent-dark: #d4a020;
            --accent-light: #f1c850;
            --bg-dark: #0b0e14;
            --bg-dark2: #121820;
            --bg-card: #1a2330;
            --bg-card-hover: #1f2a3a;
            --bg-light: #f8f9fc;
            --bg-white: #ffffff;
            --text-primary: #f0f2f5;
            --text-secondary: #b0b8c8;
            --text-muted: #7a8499;
            --text-dark: #1a1a2e;
            --text-dark-secondary: #4a4a5a;
            --border-light: rgba(255, 255, 255, 0.08);
            --border-medium: rgba(255, 255, 255, 0.15);
            --radius-sm: 6px;
            --radius-md: 12px;
            --radius-lg: 20px;
            --radius-xl: 28px;
            --shadow-sm: 0 2px 8px rgba(0,0,0,0.25);
            --shadow-md: 0 8px 30px rgba(0,0,0,0.35);
            --shadow-lg: 0 20px 60px rgba(0,0,0,0.5);
            --shadow-card: 0 4px 20px rgba(0,0,0,0.3);
            --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, 'Noto Sans SC', sans-serif;
            --container-max: 1200px;
            --header-height: 72px;
        }

        /* ===== 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: 16px;
            line-height: 1.7;
            color: var(--text-primary);
            background: var(--bg-dark);
            overflow-x: hidden;
        }
        img { max-width: 100%; height: auto; display: block; }
        a { color: inherit; text-decoration: none; transition: color var(--transition); }
        button { font-family: inherit; cursor: pointer; border: none; background: none; font-size: inherit; }
        input, textarea { font-family: inherit; font-size: inherit; }
        ul, ol { list-style: none; }
        h1, h2, h3, h4, h5, h6 { line-height: 1.3; font-weight: 700; color: var(--text-primary); }
        h1 { font-size: clamp(2.2rem, 5vw, 3.8rem); letter-spacing: -0.02em; }
        h2 { font-size: clamp(1.8rem, 3.5vw, 2.8rem); letter-spacing: -0.01em; }
        h3 { font-size: clamp(1.3rem, 2.2vw, 1.8rem); }
        h4 { font-size: 1.2rem; }
        p { color: var(--text-secondary); margin-bottom: 0.8em; }
        .container {
            width: 100%;
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 24px;
        }
        .section-padding { padding: 80px 0; }
        .section-title { text-align: center; margin-bottom: 48px; }
        .section-title h2 { margin-bottom: 12px; }
        .section-title p { font-size: 1.1rem; max-width: 640px; margin: 0 auto; color: var(--text-muted); }
        .text-accent { color: var(--accent); }
        .text-primary-brand { color: var(--primary-light); }
        .sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0; }

        /* ===== Header & Navigation ===== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: var(--header-height);
            background: rgba(11, 14, 20, 0.92);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid var(--border-light);
            z-index: 1000;
            transition: background var(--transition), box-shadow var(--transition);
        }
        .site-header.scrolled {
            background: rgba(11, 14, 20, 0.98);
            box-shadow: 0 4px 30px rgba(0,0,0,0.4);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 24px;
        }
        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.5rem;
            font-weight: 800;
            color: var(--text-primary);
            letter-spacing: -0.02em;
            flex-shrink: 0;
        }
        .logo-icon {
            width: 36px;
            height: 36px;
            background: linear-gradient(135deg, var(--primary), var(--accent));
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.1rem;
            color: #fff;
            font-weight: 700;
        }
        .logo span.highlight { color: var(--accent); }
        .nav-tabs {
            display: flex;
            align-items: center;
            gap: 4px;
            background: rgba(255,255,255,0.05);
            padding: 4px;
            border-radius: 100px;
            border: 1px solid var(--border-light);
        }
        .nav-tab {
            padding: 8px 22px;
            border-radius: 100px;
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--text-muted);
            transition: all var(--transition);
            cursor: pointer;
            user-select: none;
            white-space: nowrap;
        }
        .nav-tab:hover { color: var(--text-primary); background: rgba(255,255,255,0.06); }
        .nav-tab.active {
            background: var(--accent);
            color: #0b0e14;
            font-weight: 600;
            box-shadow: 0 4px 15px rgba(232, 184, 48, 0.35);
        }
        .nav-cta {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 10px 28px;
            border-radius: 100px;
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            color: #fff;
            font-weight: 600;
            font-size: 0.95rem;
            transition: all var(--transition);
            box-shadow: 0 4px 20px rgba(192, 57, 43, 0.3);
            flex-shrink: 0;
        }
        .nav-cta:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 30px rgba(192, 57, 43, 0.45);
            color: #fff;
        }
        .mobile-toggle {
            display: none;
            flex-direction: column;
            gap: 5px;
            padding: 8px;
            background: none;
            border: none;
            cursor: pointer;
        }
        .mobile-toggle span {
            display: block;
            width: 26px;
            height: 2.5px;
            background: var(--text-primary);
            border-radius: 4px;
            transition: var(--transition);
        }
        .mobile-toggle.active span:nth-child(1) { transform: rotate(45deg) translate(4px, 4px); }
        .mobile-toggle.active span:nth-child(2) { opacity: 0; }
        .mobile-toggle.active span:nth-child(3) { transform: rotate(-45deg) translate(4px, -4px); }

        /* ===== Hero ===== */
        .hero {
            position: relative;
            min-height: 100vh;
            display: flex;
            align-items: center;
            justify-content: center;
            padding-top: var(--header-height);
            overflow: hidden;
            background: var(--bg-dark);
        }
        .hero-bg {
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-1.png') center center / cover no-repeat;
            opacity: 0.35;
            z-index: 0;
            transform: scale(1.05);
            animation: heroZoom 20s ease-in-out infinite alternate;
        }
        @keyframes heroZoom {
            0% { transform: scale(1.05); }
            100% { transform: scale(1.15); }
        }
        .hero-overlay {
            position: absolute;
            inset: 0;
            background: radial-gradient(ellipse at 30% 50%, rgba(11,14,20,0.4) 0%, rgba(11,14,20,0.88) 70%);
            z-index: 1;
        }
        .hero-content {
            position: relative;
            z-index: 2;
            text-align: center;
            max-width: 800px;
            padding: 40px 24px;
        }
        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 6px 20px;
            border-radius: 100px;
            background: rgba(232, 184, 48, 0.15);
            border: 1px solid rgba(232, 184, 48, 0.25);
            color: var(--accent);
            font-size: 0.85rem;
            font-weight: 500;
            margin-bottom: 24px;
            letter-spacing: 0.3px;
        }
        .hero-badge i { font-size: 0.75rem; }
        .hero h1 {
            font-size: clamp(2.4rem, 6vw, 4.2rem);
            font-weight: 800;
            line-height: 1.15;
            margin-bottom: 16px;
            background: linear-gradient(135deg, #ffffff 30%, var(--accent) 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .hero p {
            font-size: clamp(1.05rem, 1.8vw, 1.3rem);
            color: var(--text-secondary);
            max-width: 600px;
            margin: 0 auto 32px;
            line-height: 1.7;
        }
        .hero-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            justify-content: center;
        }
        .btn-primary {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            padding: 14px 40px;
            border-radius: 100px;
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            color: #fff;
            font-weight: 600;
            font-size: 1.05rem;
            transition: all var(--transition);
            box-shadow: 0 6px 30px rgba(192, 57, 43, 0.35);
            border: none;
        }
        .btn-primary:hover {
            transform: translateY(-3px);
            box-shadow: 0 12px 40px rgba(192, 57, 43, 0.5);
            color: #fff;
        }
        .btn-outline {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            padding: 14px 36px;
            border-radius: 100px;
            background: transparent;
            color: var(--text-primary);
            font-weight: 600;
            font-size: 1.05rem;
            border: 1.5px solid var(--border-medium);
            transition: all var(--transition);
        }
        .btn-outline:hover {
            border-color: var(--accent);
            color: var(--accent);
            transform: translateY(-3px);
            background: rgba(232, 184, 48, 0.06);
        }
        .hero-stats {
            display: flex;
            flex-wrap: wrap;
            gap: 32px 48px;
            justify-content: center;
            margin-top: 48px;
            padding-top: 32px;
            border-top: 1px solid var(--border-light);
        }
        .hero-stat { text-align: center; }
        .hero-stat-number {
            font-size: 1.8rem;
            font-weight: 800;
            color: var(--accent);
            line-height: 1.2;
        }
        .hero-stat-label {
            font-size: 0.85rem;
            color: var(--text-muted);
            margin-top: 4px;
        }

        /* ===== Features ===== */
        .features-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
            gap: 24px;
        }
        .feature-card {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            padding: 32px 28px;
            border: 1px solid var(--border-light);
            transition: all var(--transition);
            position: relative;
            overflow: hidden;
        }
        .feature-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 3px;
            background: linear-gradient(90deg, var(--primary), var(--accent));
            opacity: 0;
            transition: opacity var(--transition);
        }
        .feature-card:hover::before { opacity: 1; }
        .feature-card:hover {
            border-color: var(--border-medium);
            transform: translateY(-6px);
            box-shadow: var(--shadow-card);
            background: var(--bg-card-hover);
        }
        .feature-icon {
            width: 52px;
            height: 52px;
            border-radius: var(--radius-sm);
            background: rgba(232, 184, 48, 0.12);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.5rem;
            color: var(--accent);
            margin-bottom: 20px;
        }
        .feature-card h3 { font-size: 1.2rem; margin-bottom: 10px; }
        .feature-card p { font-size: 0.95rem; color: var(--text-muted); margin-bottom: 0; }

        /* ===== Categories / 分类入口 ===== */
        .categories-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
            gap: 20px;
        }
        .category-card {
            position: relative;
            border-radius: var(--radius-md);
            overflow: hidden;
            background: var(--bg-card);
            border: 1px solid var(--border-light);
            transition: all var(--transition);
            aspect-ratio: 4 / 3;
            display: flex;
            align-items: center;
            justify-content: center;
            text-align: center;
        }
        .category-card img {
            position: absolute;
            inset: 0;
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s ease;
            opacity: 0.5;
        }
        .category-card:hover img { transform: scale(1.08); }
        .category-card-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(0deg, rgba(11,14,20,0.75) 0%, rgba(11,14,20,0.3) 100%);
            z-index: 1;
        }
        .category-card-content {
            position: relative;
            z-index: 2;
            padding: 20px;
        }
        .category-card-content h3 {
            font-size: 1.2rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 6px;
        }
        .category-card-content p {
            font-size: 0.85rem;
            color: rgba(255,255,255,0.7);
            margin-bottom: 0;
        }
        .category-card:hover {
            border-color: var(--accent);
            transform: translateY(-4px);
            box-shadow: 0 12px 30px rgba(0,0,0,0.4);
        }
        .category-tag {
            display: inline-block;
            padding: 4px 14px;
            border-radius: 100px;
            background: var(--accent);
            color: #0b0e14;
            font-size: 0.75rem;
            font-weight: 600;
            margin-top: 10px;
        }

        /* ===== Latest Posts / CMS 列表 ===== */
        .posts-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
            gap: 24px;
        }
        .post-card {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            overflow: hidden;
            border: 1px solid var(--border-light);
            transition: all var(--transition);
        }
        .post-card:hover {
            border-color: var(--border-medium);
            transform: translateY(-6px);
            box-shadow: var(--shadow-card);
            background: var(--bg-card-hover);
        }
        .post-card-image {
            position: relative;
            aspect-ratio: 16 / 10;
            overflow: hidden;
            background: var(--bg-dark2);
        }
        .post-card-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s ease;
        }
        .post-card:hover .post-card-image img { transform: scale(1.06); }
        .post-card-category {
            position: absolute;
            top: 12px;
            left: 12px;
            padding: 4px 14px;
            border-radius: 100px;
            background: var(--accent);
            color: #0b0e14;
            font-size: 0.75rem;
            font-weight: 600;
            z-index: 2;
        }
        .post-card-body { padding: 20px; }
        .post-card-body h3 {
            font-size: 1.05rem;
            margin-bottom: 8px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .post-card-body h3 a { color: var(--text-primary); }
        .post-card-body h3 a:hover { color: var(--accent); }
        .post-card-body p {
            font-size: 0.9rem;
            color: var(--text-muted);
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            margin-bottom: 12px;
        }
        .post-card-meta {
            display: flex;
            align-items: center;
            gap: 16px;
            font-size: 0.8rem;
            color: var(--text-muted);
        }
        .post-card-meta i { margin-right: 4px; }
        .posts-empty {
            grid-column: 1 / -1;
            text-align: center;
            padding: 60px 20px;
            color: var(--text-muted);
            background: var(--bg-card);
            border-radius: var(--radius-md);
            border: 1px dashed var(--border-light);
        }
        .posts-empty i { font-size: 2.5rem; margin-bottom: 16px; opacity: 0.5; }

        /* ===== Stats / 数据 ===== */
        .stats-section {
            background: var(--bg-dark2);
            position: relative;
            overflow: hidden;
        }
        .stats-section::before {
            content: '';
            position: absolute;
            top: -50%;
            right: -20%;
            width: 60%;
            height: 200%;
            background: radial-gradient(circle, rgba(232,184,48,0.04) 0%, transparent 70%);
            pointer-events: none;
        }
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
            gap: 32px;
            text-align: center;
            position: relative;
            z-index: 1;
        }
        .stat-item-number {
            font-size: 2.8rem;
            font-weight: 800;
            color: var(--accent);
            line-height: 1.2;
        }
        .stat-item-label {
            font-size: 0.95rem;
            color: var(--text-muted);
            margin-top: 6px;
        }
        .stat-item-divider {
            width: 40px;
            height: 2px;
            background: var(--accent);
            margin: 12px auto 0;
            border-radius: 2px;
        }

        /* ===== Steps / 流程 ===== */
        .steps-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 32px;
            position: relative;
        }
        .steps-grid::before {
            content: '';
            position: absolute;
            top: 40px;
            left: 10%;
            width: 80%;
            height: 2px;
            background: linear-gradient(90deg, var(--accent), var(--primary), var(--accent));
            opacity: 0.15;
            z-index: 0;
        }
        .step-item {
            text-align: center;
            position: relative;
            z-index: 1;
        }
        .step-number {
            width: 56px;
            height: 56px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--primary), var(--accent));
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.4rem;
            font-weight: 800;
            color: #fff;
            margin: 0 auto 20px;
            box-shadow: 0 8px 30px rgba(192, 57, 43, 0.25);
        }
        .step-item h4 { font-size: 1.1rem; margin-bottom: 8px; }
        .step-item p { font-size: 0.9rem; color: var(--text-muted); margin-bottom: 0; }

        /* ===== FAQ ===== */
        .faq-list {
            max-width: 760px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .faq-item {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            border: 1px solid var(--border-light);
            overflow: hidden;
            transition: border-color var(--transition);
        }
        .faq-item.active { border-color: var(--accent); }
        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 20px 24px;
            cursor: pointer;
            font-weight: 600;
            font-size: 1.05rem;
            color: var(--text-primary);
            transition: color var(--transition);
            user-select: none;
        }
        .faq-question:hover { color: var(--accent); }
        .faq-question i {
            font-size: 0.9rem;
            color: var(--text-muted);
            transition: transform var(--transition);
        }
        .faq-item.active .faq-question i { transform: rotate(180deg); color: var(--accent); }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease, padding 0.4s ease;
            padding: 0 24px;
            color: var(--text-secondary);
            font-size: 0.95rem;
            line-height: 1.7;
        }
        .faq-item.active .faq-answer {
            max-height: 300px;
            padding: 0 24px 20px;
        }

        /* ===== CTA ===== */
        .cta-section {
            background: var(--bg-dark2);
            position: relative;
            overflow: hidden;
            text-align: center;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            bottom: -30%;
            left: -10%;
            width: 60%;
            height: 120%;
            background: radial-gradient(circle, rgba(192,57,43,0.06) 0%, transparent 70%);
            pointer-events: none;
        }
        .cta-section::after {
            content: '';
            position: absolute;
            top: -20%;
            right: -10%;
            width: 50%;
            height: 100%;
            background: radial-gradient(circle, rgba(232,184,48,0.04) 0%, transparent 70%);
            pointer-events: none;
        }
        .cta-content { position: relative; z-index: 1; max-width: 640px; margin: 0 auto; }
        .cta-content h2 { margin-bottom: 16px; }
        .cta-content p { font-size: 1.1rem; color: var(--text-muted); margin-bottom: 32px; }
        .cta-buttons { display: flex; flex-wrap: wrap; gap: 16px; justify-content: center; }

        /* ===== Footer ===== */
        .site-footer {
            background: #06080d;
            border-top: 1px solid var(--border-light);
            padding: 60px 0 30px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 40px;
        }
        .footer-brand .logo { margin-bottom: 16px; font-size: 1.3rem; }
        .footer-brand p { font-size: 0.9rem; color: var(--text-muted); max-width: 300px; }
        .footer-social {
            display: flex;
            gap: 12px;
            margin-top: 20px;
        }
        .footer-social a {
            width: 38px;
            height: 38px;
            border-radius: 50%;
            background: var(--bg-card);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--text-muted);
            transition: all var(--transition);
            border: 1px solid var(--border-light);
        }
        .footer-social a:hover {
            background: var(--accent);
            color: #0b0e14;
            border-color: var(--accent);
            transform: translateY(-3px);
        }
        .footer-col h4 {
            font-size: 1rem;
            margin-bottom: 16px;
            color: var(--text-primary);
        }
        .footer-col ul li { margin-bottom: 10px; }
        .footer-col ul li a {
            font-size: 0.9rem;
            color: var(--text-muted);
            transition: color var(--transition);
        }
        .footer-col ul li a:hover { color: var(--accent); }
        .footer-bottom {
            border-top: 1px solid var(--border-light);
            padding-top: 24px;
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: center;
            gap: 12px;
            font-size: 0.85rem;
            color: var(--text-muted);
        }
        .footer-bottom a { color: var(--text-muted); }
        .footer-bottom a:hover { color: var(--accent); }

        /* ===== Responsive ===== */
        @media (max-width: 1024px) {
            .footer-grid { grid-template-columns: 1fr 1fr; }
        }
        @media (max-width: 820px) {
            .nav-tabs { display: none; }
            .nav-cta { display: none; }
            .mobile-toggle { display: flex; }
            .header-inner { padding: 0 16px; }
            .mobile-menu-open .nav-tabs {
                display: flex;
                flex-direction: column;
                position: absolute;
                top: var(--header-height);
                left: 0;
                width: 100%;
                background: rgba(11,14,20,0.98);
                backdrop-filter: blur(20px);
                padding: 16px;
                border-radius: 0 0 var(--radius-md) var(--radius-md);
                border: 1px solid var(--border-light);
                border-top: none;
                gap: 6px;
                animation: slideDown 0.3s ease;
            }
            .mobile-menu-open .nav-tabs .nav-tab {
                padding: 14px 20px;
                width: 100%;
                text-align: center;
            }
            .mobile-menu-open .nav-cta {
                display: inline-flex;
                margin-top: 8px;
                justify-content: center;
                width: 100%;
            }
            @keyframes slideDown {
                from { opacity: 0; transform: translateY(-10px); }
                to { opacity: 1; transform: translateY(0); }
            }
            .section-padding { padding: 56px 0; }
            .hero { min-height: 90vh; }
            .hero-stats { gap: 20px 24px; }
            .hero-stat-number { font-size: 1.5rem; }
            .steps-grid::before { display: none; }
        }
        @media (max-width: 520px) {
            :root { --header-height: 64px; }
            .container { padding: 0 16px; }
            .section-padding { padding: 40px 0; }
            .section-title { margin-bottom: 32px; }
            .section-title h2 { font-size: 1.6rem; }
            .hero h1 { font-size: 2rem; }
            .hero p { font-size: 0.95rem; }
            .hero-actions { flex-direction: column; align-items: center; }
            .btn-primary, .btn-outline { width: 100%; justify-content: center; padding: 14px 24px; }
            .hero-stats { flex-direction: column; gap: 16px; padding-top: 20px; }
            .features-grid { grid-template-columns: 1fr; }
            .categories-grid { grid-template-columns: 1fr 1fr; }
            .posts-grid { grid-template-columns: 1fr; }
            .stats-grid { grid-template-columns: 1fr 1fr; gap: 20px; }
            .stat-item-number { font-size: 2rem; }
            .steps-grid { grid-template-columns: 1fr; gap: 24px; }
            .footer-grid { grid-template-columns: 1fr; gap: 24px; }
            .footer-bottom { flex-direction: column; text-align: center; }
            .faq-question { font-size: 0.95rem; padding: 16px 18px; }
            .faq-item.active .faq-answer { padding: 0 18px 16px; }
            .logo { font-size: 1.2rem; }
            .logo-icon { width: 30px; height: 30px; font-size: 0.9rem; }
        }

        /* ===== Decorative ===== */
        .divider-line {
            width: 60px;
            height: 3px;
            background: linear-gradient(90deg, var(--primary), var(--accent));
            border-radius: 4px;
            margin: 0 auto 16px;
        }
        .glow-dot {
            display: inline-block;
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: var(--accent);
            box-shadow: 0 0 20px rgba(232,184,48,0.5);
            margin-right: 6px;
            animation: pulse 2s ease-in-out infinite;
        }
        @keyframes pulse {
            0%, 100% { opacity: 1; transform: scale(1); }
            50% { opacity: 0.6; transform: scale(0.85); }
        }

        /* ===== 通用辅助 ===== */
        .text-center { text-align: center; }
        .mt-16 { margin-top: 16px; }
        .mt-24 { margin-top: 24px; }
        .mt-32 { margin-top: 32px; }
        .mb-16 { margin-bottom: 16px; }
        .mb-24 { margin-bottom: 24px; }
        .gap-16 { gap: 16px; }
        .flex-center { display: flex; align-items: center; justify-content: center; }
        .bg-dark-section { background: var(--bg-dark2); }

/* roulang page: article */
/* ===== Design Variables ===== */
        :root {
            --primary: #e63946;
            --primary-dark: #c1121f;
            --primary-light: #ff6b6b;
            --secondary: #1a1a2e;
            --secondary-light: #16213e;
            --accent: #f4a261;
            --accent-dark: #e76f51;
            --success: #2a9d8f;
            --bg-dark: #0f0f1a;
            --bg-card: #1e1e36;
            --bg-card-hover: #2a2a4a;
            --bg-light: #f8f9fa;
            --text-primary: #ffffff;
            --text-secondary: #b0b0c8;
            --text-muted: #6c6c8a;
            --text-dark: #1a1a2e;
            --border-color: rgba(255, 255, 255, 0.08);
            --border-light: rgba(255, 255, 255, 0.15);
            --radius-sm: 8px;
            --radius-md: 14px;
            --radius-lg: 20px;
            --radius-xl: 28px;
            --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
            --shadow-md: 0 8px 30px rgba(0, 0, 0, 0.4);
            --shadow-lg: 0 20px 60px rgba(0, 0, 0, 0.5);
            --shadow-glow: 0 0 40px rgba(230, 57, 70, 0.15);
            --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
            --max-width: 1200px;
            --header-height: 72px;
        }

        /* ===== Reset & Base ===== */
        *,
        *::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-sans);
            font-size: 16px;
            line-height: 1.7;
            color: var(--text-primary);
            background: var(--bg-dark);
            min-height: 100vh;
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: var(--radius-sm);
        }

        a {
            color: var(--primary-light);
            text-decoration: none;
            transition: var(--transition);
        }

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

        a:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 2px;
            border-radius: 4px;
        }

        button,
        input,
        textarea {
            font-family: inherit;
            font-size: inherit;
            border: none;
            outline: none;
            transition: var(--transition);
        }

        button:focus-visible,
        input:focus-visible,
        textarea:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 2px;
        }

        ul,
        ol {
            list-style: none;
        }

        /* ===== Container ===== */
        .container {
            width: 100%;
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 24px;
        }

        @media (max-width: 768px) {
            .container {
                padding: 0 16px;
            }
        }

        /* ===== Header & Navigation ===== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            height: var(--header-height);
            background: rgba(15, 15, 26, 0.92);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid var(--border-color);
            transition: var(--transition);
        }

        .site-header.scrolled {
            background: rgba(15, 15, 26, 0.98);
            box-shadow: 0 4px 30px rgba(0, 0, 0, 0.4);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: var(--header-height);
            gap: 20px;
        }

        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 22px;
            font-weight: 700;
            color: var(--text-primary);
            text-decoration: none;
            flex-shrink: 0;
        }

        .logo:hover {
            color: var(--text-primary);
        }

        .logo-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 38px;
            height: 38px;
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            border-radius: var(--radius-sm);
            font-size: 18px;
            font-weight: 800;
            color: #fff;
            box-shadow: 0 4px 15px rgba(230, 57, 70, 0.35);
        }

        .logo .highlight {
            color: var(--primary);
        }

        .nav-tabs {
            display: flex;
            align-items: center;
            gap: 6px;
            background: rgba(255, 255, 255, 0.05);
            padding: 4px;
            border-radius: 12px;
            border: 1px solid var(--border-color);
        }

        .nav-tab {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 8px 20px;
            border-radius: 8px;
            font-size: 14px;
            font-weight: 500;
            color: var(--text-secondary);
            background: transparent;
            border: none;
            cursor: pointer;
            transition: var(--transition);
            text-decoration: none;
            white-space: nowrap;
        }

        .nav-tab:hover {
            color: var(--text-primary);
            background: rgba(255, 255, 255, 0.08);
        }

        .nav-tab.active {
            color: #fff;
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            box-shadow: 0 4px 15px rgba(230, 57, 70, 0.35);
        }

        .nav-tab.active:hover {
            color: #fff;
            background: linear-gradient(135deg, var(--primary-dark), var(--primary));
        }

        .nav-cta {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 10px 24px;
            background: linear-gradient(135deg, var(--accent), var(--accent-dark));
            color: #fff;
            border-radius: 10px;
            font-weight: 600;
            font-size: 14px;
            text-decoration: none;
            box-shadow: 0 4px 20px rgba(244, 162, 97, 0.3);
            transition: var(--transition);
            flex-shrink: 0;
        }

        .nav-cta:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 30px rgba(244, 162, 97, 0.4);
            color: #fff;
        }

        .mobile-toggle {
            display: none;
            flex-direction: column;
            justify-content: center;
            align-items: center;
            gap: 5px;
            width: 40px;
            height: 40px;
            background: rgba(255, 255, 255, 0.05);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-sm);
            cursor: pointer;
            padding: 8px;
        }

        .mobile-toggle span {
            display: block;
            width: 20px;
            height: 2px;
            background: var(--text-primary);
            border-radius: 2px;
            transition: var(--transition);
        }

        .mobile-toggle.active span:nth-child(1) {
            transform: rotate(45deg) translate(5px, 5px);
        }
        .mobile-toggle.active span:nth-child(2) {
            opacity: 0;
        }
        .mobile-toggle.active span:nth-child(3) {
            transform: rotate(-45deg) translate(5px, -5px);
        }

        @media (max-width: 768px) {
            .nav-tabs {
                position: fixed;
                top: var(--header-height);
                left: 0;
                right: 0;
                flex-direction: column;
                background: rgba(15, 15, 26, 0.98);
                backdrop-filter: blur(20px);
                padding: 16px;
                gap: 8px;
                border-radius: 0 0 var(--radius-md) var(--radius-md);
                border: none;
                border-bottom: 1px solid var(--border-color);
                transform: translateY(-120%);
                opacity: 0;
                transition: var(--transition);
                z-index: 999;
                box-shadow: var(--shadow-lg);
            }

            .nav-tabs.open {
                transform: translateY(0);
                opacity: 1;
            }

            .nav-tab {
                width: 100%;
                justify-content: center;
                padding: 12px 20px;
                font-size: 16px;
            }

            .mobile-toggle {
                display: flex;
            }

            .nav-cta {
                padding: 8px 16px;
                font-size: 13px;
            }

            .logo {
                font-size: 18px;
            }
            .logo-icon {
                width: 32px;
                height: 32px;
                font-size: 15px;
            }
        }

        @media (max-width: 520px) {
            .header-inner {
                gap: 10px;
            }
            .nav-cta span {
                display: none;
            }
            .logo span:last-child {
                font-size: 16px;
            }
        }

        /* ===== Article Hero / Banner ===== */
        .article-hero {
            padding: 120px 0 60px;
            background: var(--secondary);
            background-image: url('/assets/images/backpic/back-2.png');
            background-size: cover;
            background-position: center;
            background-blend-mode: overlay;
            position: relative;
            min-height: 320px;
            display: flex;
            align-items: center;
        }

        .article-hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(15, 15, 26, 0.85) 0%, rgba(15, 15, 26, 0.6) 50%, rgba(15, 15, 26, 0.9) 100%);
        }

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

        .article-breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            color: var(--text-muted);
            margin-bottom: 20px;
            flex-wrap: wrap;
        }

        .article-breadcrumb a {
            color: var(--text-secondary);
        }

        .article-breadcrumb a:hover {
            color: var(--primary-light);
        }

        .article-breadcrumb .sep {
            color: var(--text-muted);
            font-size: 12px;
        }

        .article-hero-title {
            font-size: clamp(28px, 4vw, 44px);
            font-weight: 800;
            line-height: 1.25;
            color: var(--text-primary);
            max-width: 900px;
            margin-bottom: 16px;
        }

        .article-meta {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 16px 24px;
            font-size: 14px;
            color: var(--text-secondary);
        }

        .article-meta .tag {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 4px 14px;
            background: rgba(230, 57, 70, 0.2);
            color: var(--primary-light);
            border-radius: 20px;
            font-size: 13px;
            font-weight: 500;
            border: 1px solid rgba(230, 57, 70, 0.25);
        }

        .article-meta .meta-item {
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }

        .article-meta .meta-item i {
            font-size: 14px;
            color: var(--text-muted);
        }

        @media (max-width: 768px) {
            .article-hero {
                padding: 100px 0 40px;
                min-height: 240px;
            }
            .article-hero-title {
                font-size: 24px;
            }
            .article-meta {
                gap: 12px 16px;
                font-size: 13px;
            }
        }

        /* ===== Article Main Content ===== */
        .article-main {
            padding: 60px 0 80px;
        }

        .article-layout {
            display: grid;
            grid-template-columns: 1fr 320px;
            gap: 48px;
            align-items: start;
        }

        .article-body {
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            border: 1px solid var(--border-color);
            padding: 40px;
            box-shadow: var(--shadow-md);
        }

        .article-body .featured-image {
            width: 100%;
            border-radius: var(--radius-md);
            margin-bottom: 32px;
            aspect-ratio: 16 / 9;
            object-fit: cover;
            box-shadow: var(--shadow-sm);
        }

        .article-content {
            font-size: 16px;
            line-height: 1.9;
            color: var(--text-secondary);
        }

        .article-content h2 {
            font-size: 26px;
            font-weight: 700;
            color: var(--text-primary);
            margin: 40px 0 16px;
            padding-bottom: 12px;
            border-bottom: 2px solid var(--border-color);
        }

        .article-content h3 {
            font-size: 20px;
            font-weight: 600;
            color: var(--text-primary);
            margin: 32px 0 12px;
        }

        .article-content h4 {
            font-size: 18px;
            font-weight: 600;
            color: var(--text-primary);
            margin: 24px 0 10px;
        }

        .article-content p {
            margin-bottom: 20px;
        }

        .article-content a {
            color: var(--primary-light);
            text-decoration: underline;
            text-underline-offset: 3px;
        }

        .article-content a:hover {
            color: var(--primary);
        }

        .article-content ul,
        .article-content ol {
            margin: 0 0 20px 20px;
        }

        .article-content ul li,
        .article-content ol li {
            margin-bottom: 8px;
            position: relative;
            padding-left: 20px;
        }

        .article-content ul li::before {
            content: '';
            position: absolute;
            left: 0;
            top: 10px;
            width: 6px;
            height: 6px;
            background: var(--primary);
            border-radius: 50%;
        }

        .article-content ol {
            counter-reset: item;
            list-style: none;
            padding-left: 0;
        }

        .article-content ol li {
            counter-increment: item;
            padding-left: 32px;
        }

        .article-content ol li::before {
            content: counter(item);
            position: absolute;
            left: 0;
            top: 2px;
            width: 24px;
            height: 24px;
            background: rgba(230, 57, 70, 0.15);
            color: var(--primary-light);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 13px;
            font-weight: 600;
        }

        .article-content blockquote {
            margin: 28px 0;
            padding: 20px 24px;
            background: rgba(230, 57, 70, 0.06);
            border-left: 4px solid var(--primary);
            border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
            color: var(--text-secondary);
            font-style: italic;
        }

        .article-content blockquote p:last-child {
            margin-bottom: 0;
        }

        .article-content img {
            border-radius: var(--radius-md);
            margin: 24px 0;
            box-shadow: var(--shadow-sm);
        }

        .article-content .highlight-box {
            background: rgba(230, 57, 70, 0.08);
            border: 1px solid rgba(230, 57, 70, 0.2);
            border-radius: var(--radius-md);
            padding: 24px 28px;
            margin: 24px 0;
        }

        .article-content .highlight-box p:last-child {
            margin-bottom: 0;
        }

        .article-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            margin-top: 40px;
            padding-top: 24px;
            border-top: 1px solid var(--border-color);
        }

        .article-tags .tag-label {
            font-size: 14px;
            font-weight: 600;
            color: var(--text-primary);
            margin-right: 8px;
        }

        .article-tags .tag-item {
            display: inline-flex;
            padding: 4px 14px;
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid var(--border-color);
            border-radius: 20px;
            font-size: 13px;
            color: var(--text-secondary);
            transition: var(--transition);
        }

        .article-tags .tag-item:hover {
            background: rgba(230, 57, 70, 0.15);
            border-color: rgba(230, 57, 70, 0.3);
            color: var(--primary-light);
        }

        .article-share {
            display: flex;
            align-items: center;
            gap: 12px;
            margin-top: 32px;
            padding-top: 20px;
            border-top: 1px solid var(--border-color);
        }

        .article-share span {
            font-size: 14px;
            font-weight: 600;
            color: var(--text-primary);
        }

        .article-share .share-btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 38px;
            height: 38px;
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid var(--border-color);
            border-radius: 50%;
            color: var(--text-secondary);
            font-size: 16px;
            transition: var(--transition);
            cursor: pointer;
        }

        .article-share .share-btn:hover {
            background: var(--primary);
            border-color: var(--primary);
            color: #fff;
            transform: translateY(-2px);
        }

        /* ===== Sidebar ===== */
        .article-sidebar {
            display: flex;
            flex-direction: column;
            gap: 32px;
        }

        .sidebar-card {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            padding: 28px;
            box-shadow: var(--shadow-sm);
        }

        .sidebar-card h3 {
            font-size: 18px;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 16px;
            padding-bottom: 12px;
            border-bottom: 2px solid var(--border-color);
        }

        .sidebar-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .sidebar-list-item {
            display: flex;
            gap: 12px;
            align-items: flex-start;
            padding: 10px 0;
            border-bottom: 1px solid rgba(255, 255, 255, 0.04);
            transition: var(--transition);
        }

        .sidebar-list-item:last-child {
            border-bottom: none;
        }

        .sidebar-list-item:hover {
            padding-left: 6px;
        }

        .sidebar-list-item .thumb {
            width: 60px;
            height: 60px;
            border-radius: var(--radius-sm);
            object-fit: cover;
            flex-shrink: 0;
            background: var(--secondary);
        }

        .sidebar-list-item .info {
            flex: 1;
            min-width: 0;
        }

        .sidebar-list-item .info h4 {
            font-size: 14px;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 4px;
            line-height: 1.4;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .sidebar-list-item .info .date {
            font-size: 12px;
            color: var(--text-muted);
        }

        .sidebar-cta {
            background: linear-gradient(135deg, rgba(230, 57, 70, 0.1), rgba(244, 162, 97, 0.1));
            border: 1px solid rgba(230, 57, 70, 0.2);
            border-radius: var(--radius-md);
            padding: 28px;
            text-align: center;
        }

        .sidebar-cta h4 {
            font-size: 18px;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 8px;
        }

        .sidebar-cta p {
            font-size: 14px;
            color: var(--text-secondary);
            margin-bottom: 20px;
        }

        .sidebar-cta .btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 32px;
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            color: #fff;
            border-radius: 10px;
            font-weight: 600;
            font-size: 15px;
            text-decoration: none;
            box-shadow: 0 4px 20px rgba(230, 57, 70, 0.3);
            transition: var(--transition);
        }

        .sidebar-cta .btn:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 30px rgba(230, 57, 70, 0.4);
            color: #fff;
        }

        /* ===== Article Nav (Prev/Next) ===== */
        .article-nav {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 24px;
            margin-top: 48px;
            padding-top: 32px;
            border-top: 1px solid var(--border-color);
        }

        .article-nav a {
            display: flex;
            flex-direction: column;
            gap: 6px;
            padding: 20px 24px;
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            transition: var(--transition);
            text-decoration: none;
        }

        .article-nav a:hover {
            border-color: var(--primary);
            background: var(--bg-card-hover);
            transform: translateY(-2px);
            box-shadow: var(--shadow-sm);
        }

        .article-nav .nav-label {
            font-size: 12px;
            font-weight: 600;
            color: var(--text-muted);
            text-transform: uppercase;
            letter-spacing: 0.5px;
        }

        .article-nav .nav-title {
            font-size: 15px;
            font-weight: 600;
            color: var(--text-primary);
            line-height: 1.4;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .article-nav a.next {
            text-align: right;
        }

        @media (max-width: 1024px) {
            .article-layout {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            .article-sidebar {
                display: grid;
                grid-template-columns: 1fr 1fr;
                gap: 24px;
            }
            .sidebar-card {
                padding: 20px;
            }
        }

        @media (max-width: 768px) {
            .article-body {
                padding: 24px;
            }
            .article-sidebar {
                grid-template-columns: 1fr;
            }
            .article-nav {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .article-nav a.next {
                text-align: left;
            }
            .article-content h2 {
                font-size: 22px;
            }
            .article-content h3 {
                font-size: 18px;
            }
        }

        @media (max-width: 520px) {
            .article-body {
                padding: 16px;
            }
            .article-hero-title {
                font-size: 20px;
            }
            .article-meta {
                flex-direction: column;
                align-items: flex-start;
                gap: 8px;
            }
            .article-share {
                flex-wrap: wrap;
            }
        }

        /* ===== Not Found State ===== */
        .not-found-box {
            text-align: center;
            padding: 80px 24px;
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            border: 1px solid var(--border-color);
        }

        .not-found-box i {
            font-size: 64px;
            color: var(--text-muted);
            margin-bottom: 24px;
        }

        .not-found-box h2 {
            font-size: 28px;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 12px;
        }

        .not-found-box p {
            font-size: 16px;
            color: var(--text-secondary);
            margin-bottom: 24px;
        }

        .not-found-box .btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 32px;
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            color: #fff;
            border-radius: 10px;
            font-weight: 600;
            font-size: 15px;
            text-decoration: none;
            transition: var(--transition);
        }

        .not-found-box .btn:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 30px rgba(230, 57, 70, 0.4);
            color: #fff;
        }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--secondary);
            border-top: 1px solid var(--border-color);
            padding: 60px 0 0;
            margin-top: 0;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.8fr 1fr 1fr 1fr;
            gap: 40px;
            padding-bottom: 40px;
            border-bottom: 1px solid var(--border-color);
        }

        .footer-brand .logo {
            font-size: 20px;
            margin-bottom: 16px;
        }

        .footer-brand p {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.7;
            margin-bottom: 20px;
            max-width: 340px;
        }

        .footer-social {
            display: flex;
            gap: 12px;
        }

        .footer-social a {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid var(--border-color);
            border-radius: 50%;
            color: var(--text-secondary);
            font-size: 18px;
            transition: var(--transition);
        }

        .footer-social a:hover {
            background: var(--primary);
            border-color: var(--primary);
            color: #fff;
            transform: translateY(-3px);
        }

        .footer-col h4 {
            font-size: 16px;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 20px;
        }

        .footer-col ul {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .footer-col ul li a {
            font-size: 14px;
            color: var(--text-muted);
            transition: var(--transition);
        }

        .footer-col ul li a:hover {
            color: var(--primary-light);
            padding-left: 4px;
        }

        .footer-bottom {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 24px 0;
            font-size: 13px;
            color: var(--text-muted);
        }

        .footer-bottom a {
            color: var(--text-secondary);
        }

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

        @media (max-width: 1024px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 32px;
            }
            .footer-brand {
                grid-column: 1 / -1;
            }
            .footer-brand p {
                max-width: 100%;
            }
        }

        @media (max-width: 768px) {
            .site-footer {
                padding: 40px 0 0;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 28px;
            }
            .footer-bottom {
                flex-direction: column;
                gap: 8px;
                text-align: center;
            }
        }

        /* ===== Utility ===== */
        .text-center {
            text-align: center;
        }
        .mt-16 {
            margin-top: 16px;
        }
        .mt-24 {
            margin-top: 24px;
        }
        .mt-32 {
            margin-top: 32px;
        }
        .mb-16 {
            margin-bottom: 16px;
        }
        .mb-24 {
            margin-bottom: 24px;
        }

        /* ===== Scrollbar ===== */
        ::-webkit-scrollbar {
            width: 8px;
        }
        ::-webkit-scrollbar-track {
            background: var(--bg-dark);
        }
        ::-webkit-scrollbar-thumb {
            background: var(--text-muted);
            border-radius: 4px;
        }
        ::-webkit-scrollbar-thumb:hover {
            background: var(--text-secondary);
        }

        /* ===== Loading Skeleton ===== */
        .skeleton {
            background: linear-gradient(90deg, var(--bg-card) 25%, var(--bg-card-hover) 50%, var(--bg-card) 75%);
            background-size: 200% 100%;
            animation: shimmer 1.5s infinite;
            border-radius: var(--radius-sm);
        }

        @keyframes shimmer {
            0% {
                background-position: 200% 0;
            }
            100% {
                background-position: -200% 0;
            }
        }

/* roulang page: category1 */
/* ===== Design Variables ===== */
        :root {
            --primary: #e50914;
            --primary-dark: #b20710;
            --primary-light: #ff3b4a;
            --secondary: #0f0f0f;
            --secondary-light: #1a1a2e;
            --accent: #f5c518;
            --bg-dark: #0a0a0a;
            --bg-card: #141414;
            --bg-section: #111111;
            --bg-light: #f8f9fa;
            --text-primary: #ffffff;
            --text-secondary: #b3b3b3;
            --text-muted: #6c757d;
            --text-dark: #212529;
            --border-color: rgba(255, 255, 255, 0.08);
            --border-light: #e9ecef;
            --radius-sm: 6px;
            --radius-md: 12px;
            --radius-lg: 20px;
            --radius-xl: 28px;
            --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
            --shadow-md: 0 8px 30px rgba(0, 0, 0, 0.4);
            --shadow-lg: 0 20px 60px rgba(0, 0, 0, 0.6);
            --shadow-glow: 0 0 30px rgba(229, 9, 20, 0.15);
            --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif;
            --max-width: 1200px;
            --header-height: 72px;
            --spacing-section: 100px;
        }

        /* ===== 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-sans);
            font-size: 16px;
            line-height: 1.7;
            color: var(--text-primary);
            background: var(--bg-dark);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            overflow-x: hidden;
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: var(--radius-md);
        }

        a {
            color: var(--primary);
            text-decoration: none;
            transition: var(--transition);
        }
        a:hover {
            color: var(--primary-light);
        }

        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
            outline: none;
        }

        button {
            cursor: pointer;
            border: none;
            background: none;
        }

        ul,
        ol {
            list-style: none;
        }

        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            line-height: 1.3;
            font-weight: 700;
            color: var(--text-primary);
        }

        /* ===== Container ===== */
        .container {
            width: 100%;
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 24px;
        }

        @media (max-width: 768px) {
            .container {
                padding: 0 16px;
            }
            :root {
                --spacing-section: 60px;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding: 0 12px;
            }
            :root {
                --spacing-section: 48px;
            }
        }

        /* ===== Header & Navigation (Tabs Style) ===== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            height: var(--header-height);
            background: rgba(10, 10, 10, 0.92);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid var(--border-color);
            transition: var(--transition);
        }

        .site-header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
        }

        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 22px;
            font-weight: 800;
            color: var(--text-primary);
            letter-spacing: -0.5px;
            flex-shrink: 0;
        }
        .logo:hover {
            color: var(--text-primary);
        }
        .logo-icon {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            background: var(--primary);
            border-radius: var(--radius-sm);
            font-size: 20px;
            font-weight: 800;
            color: #fff;
            flex-shrink: 0;
        }
        .logo .highlight {
            color: var(--primary);
        }

        .nav-tabs {
            display: flex;
            align-items: center;
            gap: 4px;
            background: rgba(255, 255, 255, 0.05);
            padding: 4px;
            border-radius: var(--radius-lg);
            flex-wrap: wrap;
        }
        .nav-tab {
            padding: 8px 22px;
            font-size: 14px;
            font-weight: 600;
            color: var(--text-secondary);
            border-radius: var(--radius-md);
            transition: var(--transition);
            white-space: nowrap;
            letter-spacing: 0.3px;
        }
        .nav-tab:hover {
            color: var(--text-primary);
            background: rgba(255, 255, 255, 0.08);
        }
        .nav-tab.active {
            color: #fff;
            background: var(--primary);
            box-shadow: var(--shadow-glow);
        }
        .nav-tab.active:hover {
            background: var(--primary-dark);
            color: #fff;
        }

        /* mobile menu toggle */
        .menu-toggle {
            display: none;
            flex-direction: column;
            gap: 5px;
            padding: 8px;
            background: rgba(255, 255, 255, 0.05);
            border-radius: var(--radius-sm);
            transition: var(--transition);
        }
        .menu-toggle span {
            display: block;
            width: 24px;
            height: 2px;
            background: var(--text-primary);
            border-radius: 2px;
            transition: var(--transition);
        }
        .menu-toggle:hover {
            background: rgba(255, 255, 255, 0.1);
        }

        @media (max-width: 768px) {
            .menu-toggle {
                display: flex;
            }
            .nav-tabs {
                position: fixed;
                top: var(--header-height);
                left: 0;
                right: 0;
                background: rgba(10, 10, 10, 0.98);
                backdrop-filter: blur(20px);
                -webkit-backdrop-filter: blur(20px);
                flex-direction: column;
                padding: 16px;
                gap: 8px;
                border-radius: 0;
                border-bottom: 1px solid var(--border-color);
                transform: translateY(-120%);
                opacity: 0;
                pointer-events: none;
                transition: var(--transition);
                box-shadow: var(--shadow-lg);
            }
            .nav-tabs.open {
                transform: translateY(0);
                opacity: 1;
                pointer-events: auto;
            }
            .nav-tab {
                width: 100%;
                text-align: center;
                padding: 12px 20px;
                font-size: 16px;
            }
            .logo {
                font-size: 18px;
            }
            .logo-icon {
                width: 34px;
                height: 34px;
                font-size: 16px;
            }
        }

        @media (max-width: 520px) {
            .logo span:last-child {
                font-size: 16px;
            }
            .nav-tab {
                font-size: 15px;
                padding: 10px 16px;
            }
        }

        /* ===== Hero / Banner ===== */
        .category-hero {
            padding-top: calc(var(--header-height) + 40px);
            padding-bottom: 80px;
            background: var(--bg-section);
            position: relative;
            overflow: hidden;
            min-height: 420px;
            display: flex;
            align-items: center;
        }
        .category-hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-2.png') center center / cover no-repeat;
            opacity: 0.3;
            z-index: 0;
        }
        .category-hero::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(10, 10, 10, 0.92) 0%, rgba(10, 10, 10, 0.6) 60%, rgba(10, 10, 10, 0.3) 100%);
            z-index: 1;
        }
        .category-hero .container {
            position: relative;
            z-index: 2;
        }
        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(229, 9, 20, 0.2);
            border: 1px solid rgba(229, 9, 20, 0.3);
            padding: 6px 18px;
            border-radius: var(--radius-xl);
            font-size: 13px;
            font-weight: 600;
            color: var(--primary-light);
            margin-bottom: 20px;
            letter-spacing: 0.5px;
            text-transform: uppercase;
        }
        .hero-badge i {
            font-size: 14px;
        }
        .category-hero h1 {
            font-size: 48px;
            font-weight: 900;
            line-height: 1.15;
            margin-bottom: 18px;
            letter-spacing: -1px;
        }
        .category-hero h1 .highlight {
            color: var(--primary);
        }
        .category-hero p {
            font-size: 18px;
            color: var(--text-secondary);
            max-width: 680px;
            margin-bottom: 32px;
            line-height: 1.8;
        }
        .hero-stats {
            display: flex;
            gap: 40px;
            flex-wrap: wrap;
        }
        .hero-stat-item {
            display: flex;
            flex-direction: column;
            gap: 2px;
        }
        .hero-stat-item .num {
            font-size: 32px;
            font-weight: 800;
            color: var(--text-primary);
            line-height: 1.1;
        }
        .hero-stat-item .num .highlight {
            color: var(--primary);
        }
        .hero-stat-item .label {
            font-size: 14px;
            color: var(--text-muted);
            font-weight: 500;
        }

        @media (max-width: 768px) {
            .category-hero {
                min-height: 320px;
                padding-top: calc(var(--header-height) + 24px);
                padding-bottom: 48px;
            }
            .category-hero h1 {
                font-size: 32px;
            }
            .category-hero p {
                font-size: 16px;
            }
            .hero-stats {
                gap: 24px;
            }
            .hero-stat-item .num {
                font-size: 24px;
            }
        }

        @media (max-width: 520px) {
            .category-hero h1 {
                font-size: 26px;
            }
            .category-hero p {
                font-size: 14px;
            }
            .hero-stats {
                gap: 16px;
            }
            .hero-stat-item .num {
                font-size: 20px;
            }
            .hero-badge {
                font-size: 11px;
                padding: 4px 14px;
            }
        }

        /* ===== Section Common ===== */
        .section {
            padding: var(--spacing-section) 0;
        }
        .section-label {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            font-weight: 600;
            color: var(--primary);
            text-transform: uppercase;
            letter-spacing: 1.5px;
            margin-bottom: 12px;
        }
        .section-label::before {
            content: '';
            width: 24px;
            height: 2px;
            background: var(--primary);
            border-radius: 2px;
        }
        .section-title {
            font-size: 36px;
            font-weight: 800;
            margin-bottom: 16px;
            letter-spacing: -0.5px;
        }
        .section-subtitle {
            font-size: 17px;
            color: var(--text-secondary);
            max-width: 600px;
            margin-bottom: 48px;
            line-height: 1.7;
        }
        .section-title.center,
        .section-subtitle.center {
            text-align: center;
            margin-left: auto;
            margin-right: auto;
        }

        @media (max-width: 768px) {
            .section-title {
                font-size: 26px;
            }
            .section-subtitle {
                font-size: 15px;
                margin-bottom: 32px;
            }
        }

        @media (max-width: 520px) {
            .section-title {
                font-size: 22px;
            }
            .section-subtitle {
                font-size: 14px;
                margin-bottom: 24px;
            }
        }

        /* ===== Sport Categories Grid ===== */
        .sport-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .sport-card {
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            overflow: hidden;
            border: 1px solid var(--border-color);
            transition: var(--transition);
            cursor: pointer;
        }
        .sport-card:hover {
            transform: translateY(-6px);
            border-color: rgba(229, 9, 20, 0.3);
            box-shadow: var(--shadow-lg), var(--shadow-glow);
        }
        .sport-card .card-img {
            width: 100%;
            aspect-ratio: 16 / 10;
            object-fit: cover;
            display: block;
            transition: var(--transition);
        }
        .sport-card:hover .card-img {
            transform: scale(1.03);
        }
        .sport-card .card-body {
            padding: 20px 22px 26px;
        }
        .sport-card .card-tag {
            display: inline-block;
            font-size: 11px;
            font-weight: 700;
            color: var(--primary);
            background: rgba(229, 9, 20, 0.12);
            padding: 3px 12px;
            border-radius: var(--radius-xl);
            letter-spacing: 0.5px;
            margin-bottom: 10px;
            text-transform: uppercase;
        }
        .sport-card h3 {
            font-size: 20px;
            font-weight: 700;
            margin-bottom: 8px;
        }
        .sport-card p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
            margin-bottom: 16px;
        }
        .sport-card .card-meta {
            display: flex;
            align-items: center;
            gap: 16px;
            font-size: 13px;
            color: var(--text-muted);
        }
        .sport-card .card-meta i {
            margin-right: 4px;
            color: var(--primary);
        }

        @media (max-width: 1024px) {
            .sport-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (max-width: 520px) {
            .sport-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .sport-card .card-body {
                padding: 16px 18px 20px;
            }
            .sport-card h3 {
                font-size: 18px;
            }
        }

        /* ===== Data / Stats Section ===== */
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }
        .stat-card {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            padding: 32px 24px;
            text-align: center;
            transition: var(--transition);
        }
        .stat-card:hover {
            border-color: rgba(229, 9, 20, 0.25);
            transform: translateY(-4px);
            box-shadow: var(--shadow-md);
        }
        .stat-card .stat-icon {
            font-size: 36px;
            color: var(--primary);
            margin-bottom: 16px;
        }
        .stat-card .stat-num {
            font-size: 40px;
            font-weight: 900;
            color: var(--text-primary);
            line-height: 1.2;
            letter-spacing: -1px;
        }
        .stat-card .stat-num .highlight {
            color: var(--primary);
        }
        .stat-card .stat-label {
            font-size: 15px;
            color: var(--text-secondary);
            margin-top: 6px;
            font-weight: 500;
        }

        @media (max-width: 768px) {
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 16px;
            }
            .stat-card {
                padding: 24px 16px;
            }
            .stat-card .stat-num {
                font-size: 30px;
            }
        }

        @media (max-width: 520px) {
            .stats-grid {
                grid-template-columns: 1fr 1fr;
                gap: 12px;
            }
            .stat-card .stat-num {
                font-size: 26px;
            }
            .stat-card .stat-icon {
                font-size: 28px;
            }
        }

        /* ===== News / List Section ===== */
        .news-list {
            display: flex;
            flex-direction: column;
            gap: 16px;
        }
        .news-item {
            display: flex;
            align-items: flex-start;
            gap: 20px;
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            padding: 20px 24px;
            transition: var(--transition);
            cursor: pointer;
        }
        .news-item:hover {
            border-color: rgba(229, 9, 20, 0.2);
            transform: translateX(4px);
            box-shadow: var(--shadow-sm);
        }
        .news-item .news-index {
            font-size: 28px;
            font-weight: 900;
            color: rgba(229, 9, 20, 0.25);
            line-height: 1;
            flex-shrink: 0;
            min-width: 40px;
            font-style: italic;
        }
        .news-item .news-content {
            flex: 1;
        }
        .news-item .news-title {
            font-size: 17px;
            font-weight: 600;
            margin-bottom: 4px;
            color: var(--text-primary);
        }
        .news-item:hover .news-title {
            color: var(--primary-light);
        }
        .news-item .news-desc {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.6;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .news-item .news-meta {
            font-size: 12px;
            color: var(--text-muted);
            margin-top: 8px;
            display: flex;
            gap: 16px;
            align-items: center;
        }
        .news-item .news-meta i {
            margin-right: 4px;
            color: var(--primary);
        }
        .news-item .news-tag {
            display: inline-block;
            font-size: 10px;
            font-weight: 700;
            color: var(--accent);
            background: rgba(245, 197, 24, 0.12);
            padding: 2px 10px;
            border-radius: var(--radius-xl);
            letter-spacing: 0.3px;
        }

        @media (max-width: 768px) {
            .news-item {
                padding: 16px 18px;
                gap: 14px;
            }
            .news-item .news-index {
                font-size: 22px;
                min-width: 30px;
            }
            .news-item .news-title {
                font-size: 15px;
            }
        }

        @media (max-width: 520px) {
            .news-item {
                flex-direction: column;
                gap: 8px;
                padding: 14px 16px;
            }
            .news-item .news-index {
                font-size: 18px;
                min-width: auto;
            }
        }

        /* ===== FAQ Section ===== */
        .faq-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 16px;
        }
        .faq-item {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            padding: 24px 28px;
            transition: var(--transition);
        }
        .faq-item:hover {
            border-color: rgba(229, 9, 20, 0.2);
            box-shadow: var(--shadow-sm);
        }
        .faq-item .faq-q {
            font-size: 16px;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 8px;
            display: flex;
            align-items: flex-start;
            gap: 10px;
        }
        .faq-item .faq-q::before {
            content: 'Q';
            font-size: 12px;
            font-weight: 800;
            color: var(--primary);
            background: rgba(229, 9, 20, 0.12);
            width: 26px;
            height: 26px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
            margin-top: 2px;
        }
        .faq-item .faq-a {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
            padding-left: 36px;
        }

        @media (max-width: 768px) {
            .faq-grid {
                grid-template-columns: 1fr;
                gap: 12px;
            }
            .faq-item {
                padding: 18px 20px;
            }
        }

        @media (max-width: 520px) {
            .faq-item .faq-q {
                font-size: 14px;
            }
            .faq-item .faq-a {
                font-size: 13px;
                padding-left: 0;
                margin-top: 6px;
            }
            .faq-item .faq-q::before {
                width: 22px;
                height: 22px;
                font-size: 10px;
            }
        }

        /* ===== CTA Section ===== */
        .cta-section {
            background: var(--bg-section);
            padding: var(--spacing-section) 0;
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-3.png') center center / cover no-repeat;
            opacity: 0.08;
            z-index: 0;
        }
        .cta-section .container {
            position: relative;
            z-index: 1;
            text-align: center;
        }
        .cta-section h2 {
            font-size: 38px;
            font-weight: 900;
            margin-bottom: 16px;
            letter-spacing: -0.5px;
        }
        .cta-section h2 .highlight {
            color: var(--primary);
        }
        .cta-section p {
            font-size: 17px;
            color: var(--text-secondary);
            max-width: 540px;
            margin: 0 auto 32px;
            line-height: 1.8;
        }
        .btn-group {
            display: flex;
            gap: 16px;
            justify-content: center;
            flex-wrap: wrap;
        }
        .btn {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            padding: 14px 34px;
            font-size: 16px;
            font-weight: 700;
            border-radius: var(--radius-md);
            transition: var(--transition);
            letter-spacing: 0.3px;
            border: none;
        }
        .btn-primary {
            background: var(--primary);
            color: #fff;
            box-shadow: var(--shadow-glow);
        }
        .btn-primary:hover {
            background: var(--primary-dark);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 8px 30px rgba(229, 9, 20, 0.35);
        }
        .btn-outline {
            background: transparent;
            color: var(--text-primary);
            border: 2px solid rgba(255, 255, 255, 0.2);
        }
        .btn-outline:hover {
            border-color: var(--primary);
            color: var(--primary);
            transform: translateY(-2px);
            background: rgba(229, 9, 20, 0.06);
        }
        .btn-sm {
            padding: 10px 22px;
            font-size: 14px;
        }

        @media (max-width: 768px) {
            .cta-section h2 {
                font-size: 28px;
            }
            .cta-section p {
                font-size: 15px;
            }
            .btn {
                padding: 12px 26px;
                font-size: 14px;
            }
        }

        @media (max-width: 520px) {
            .cta-section h2 {
                font-size: 24px;
            }
            .btn-group {
                flex-direction: column;
                align-items: center;
            }
            .btn {
                width: 100%;
                justify-content: center;
                max-width: 280px;
            }
        }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--secondary);
            border-top: 1px solid var(--border-color);
            padding: 60px 0 30px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.8fr 1fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 40px;
        }
        .footer-brand .logo {
            margin-bottom: 16px;
        }
        .footer-brand p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.8;
            margin-bottom: 20px;
            max-width: 360px;
        }
        .footer-social {
            display: flex;
            gap: 12px;
        }
        .footer-social a {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            background: rgba(255, 255, 255, 0.06);
            border-radius: 50%;
            color: var(--text-secondary);
            font-size: 18px;
            transition: var(--transition);
        }
        .footer-social a:hover {
            background: var(--primary);
            color: #fff;
            transform: translateY(-3px);
        }
        .footer-col h4 {
            font-size: 16px;
            font-weight: 700;
            margin-bottom: 18px;
            color: var(--text-primary);
        }
        .footer-col ul li {
            margin-bottom: 10px;
        }
        .footer-col ul li a {
            font-size: 14px;
            color: var(--text-secondary);
            transition: var(--transition);
        }
        .footer-col ul li a:hover {
            color: var(--primary);
            padding-left: 4px;
        }
        .footer-bottom {
            border-top: 1px solid var(--border-color);
            padding-top: 24px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 12px;
            font-size: 13px;
            color: var(--text-muted);
        }
        .footer-bottom a {
            color: var(--text-muted);
        }
        .footer-bottom a:hover {
            color: var(--primary);
        }

        @media (max-width: 1024px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 32px;
            }
        }

        @media (max-width: 768px) {
            .site-footer {
                padding: 40px 0 24px;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 24px;
            }
            .footer-brand {
                grid-column: 1 / -1;
            }
            .footer-brand p {
                max-width: 100%;
            }
        }

        @media (max-width: 520px) {
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
                gap: 6px;
            }
            .footer-social {
                justify-content: center;
            }
        }

        /* ===== Responsive Video / Extra ===== */
        .ratio-16x9 {
            aspect-ratio: 16 / 9;
            overflow: hidden;
            border-radius: var(--radius-md);
        }

        /* ===== Breadcrumb ===== */
        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            color: var(--text-muted);
            padding: 16px 0;
            flex-wrap: wrap;
        }
        .breadcrumb a {
            color: var(--text-muted);
            transition: var(--transition);
        }
        .breadcrumb a:hover {
            color: var(--primary);
        }
        .breadcrumb span {
            color: var(--text-secondary);
        }
        .breadcrumb .sep {
            color: var(--text-muted);
            font-size: 12px;
        }

        /* ===== Animations ===== */
        @keyframes fadeInUp {
            from {
                opacity: 0;
                transform: translateY(30px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }
        .animate-in {
            animation: fadeInUp 0.6s ease forwards;
        }
        .animate-in-delay-1 {
            animation-delay: 0.1s;
        }
        .animate-in-delay-2 {
            animation-delay: 0.2s;
        }
        .animate-in-delay-3 {
            animation-delay: 0.3s;
        }

        /* ===== Utility ===== */
        .text-center {
            text-align: center;
        }
        .mt-16 {
            margin-top: 16px;
        }
        .mt-24 {
            margin-top: 24px;
        }
        .mt-32 {
            margin-top: 32px;
        }
        .mb-16 {
            margin-bottom: 16px;
        }
        .mb-24 {
            margin-bottom: 24px;
        }
        .gap-8 {
            gap: 8px;
        }
        .gap-12 {
            gap: 12px;
        }
        .flex-center {
            display: flex;
            align-items: center;
            justify-content: center;
        }
        .flex-wrap {
            flex-wrap: wrap;
        }

        /* focus-visible for accessibility */
        :focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 2px;
            border-radius: 4px;
        }