/* roulang page: index */
:root {
            --primary: #1a2a6c;
            --primary-light: #3a4a8c;
            --primary-dark: #0f1a4a;
            --accent: #e94560;
            --accent-light: #ff6b7a;
            --accent-dark: #c73550;
            --bg-white: #ffffff;
            --bg-light: #f7f9fc;
            --bg-dark: #0d1117;
            --text-primary: #1a1a2e;
            --text-secondary: #4a4a6a;
            --text-light: #8a8aaa;
            --border-light: #e8ecf4;
            --radius: 12px;
            --radius-lg: 20px;
            --shadow-sm: 0 2px 8px rgba(0,0,0,0.06);
            --shadow-md: 0 8px 30px rgba(0,0,0,0.10);
            --shadow-lg: 0 20px 60px rgba(0,0,0,0.14);
            --transition: all 0.3s cubic-bezier(0.25,0.46,0.45,0.94);
        }
        * { margin:0; padding:0; box-sizing:border-box; }
        html { scroll-behavior:smooth; }
        body {
            font-family: 'Inter', system-ui, -apple-system, 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif;
            color: var(--text-primary);
            background: var(--bg-white);
            line-height: 1.6;
            -webkit-font-smoothing: antialiased;
        }
        a { color:inherit; text-decoration:none; transition:var(--transition); }
        img { max-width:100%; height:auto; display:block; }
        button, input, select, textarea { font-family:inherit; outline:none; }
        .container { max-width:1200px; margin:0 auto; padding:0 24px; }
        .section-padding { padding:80px 0; }
        .section-title {
            font-size:2rem; font-weight:700; color:var(--text-primary);
            margin-bottom:0.75rem; letter-spacing:-0.02em;
        }
        .section-subtitle {
            font-size:1.1rem; color:var(--text-secondary);
            max-width:680px; margin:0 auto 3rem auto;
        }
        .btn {
            display:inline-flex; align-items:center; gap:8px;
            padding:14px 32px; border-radius:50px; font-weight:600;
            font-size:1rem; border:none; cursor:pointer;
            transition:var(--transition); white-space:nowrap;
        }
        .btn-primary {
            background:var(--accent); color:#fff;
            box-shadow:0 4px 16px rgba(233,69,96,0.30);
        }
        .btn-primary:hover {
            background:var(--accent-dark); transform:translateY(-2px);
            box-shadow:0 8px 28px rgba(233,69,96,0.40);
        }
        .btn-primary:focus-visible { outline:3px solid rgba(233,69,96,0.50); outline-offset:2px; }
        .btn-secondary {
            background:var(--bg-white); color:var(--primary);
            border:2px solid var(--border-light);
        }
        .btn-secondary:hover {
            border-color:var(--primary-light); background:var(--bg-light);
            transform:translateY(-2px); box-shadow:var(--shadow-sm);
        }
        .btn-outline {
            background:transparent; color:#fff;
            border:2px solid rgba(255,255,255,0.40);
        }
        .btn-outline:hover {
            background:rgba(255,255,255,0.12); border-color:rgba(255,255,255,0.70);
            transform:translateY(-2px);
        }
        .badge {
            display:inline-block; padding:4px 14px; border-radius:50px;
            font-size:0.8rem; font-weight:600; letter-spacing:0.3px;
        }
        .badge-accent { background:rgba(233,69,96,0.12); color:var(--accent); }
        .badge-primary { background:rgba(26,42,108,0.10); color:var(--primary); }
        .card {
            background:var(--bg-white); border-radius:var(--radius);
            border:1px solid var(--border-light);
            transition:var(--transition);
        }
        .card:hover {
            box-shadow:var(--shadow-md); transform:translateY(-4px);
            border-color:transparent;
        }
        .card-img { border-radius:var(--radius) var(--radius) 0 0; object-fit:cover; width:100%; }
        .card-body { padding:24px; }
        /* Header / Nav */
        .site-header {
            position:sticky; top:0; z-index:1000;
            background:rgba(255,255,255,0.92); backdrop-filter:blur(14px);
            border-bottom:1px solid var(--border-light);
        }
        .nav-wrap { display:flex; align-items:center; justify-content:space-between; height:72px; }
        .nav-center { position:absolute; left:50%; transform:translateX(-50%); }
        .nav-logo {
            font-size:1.5rem; font-weight:800; color:var(--primary);
            letter-spacing:-0.5px; white-space:nowrap;
        }
        .nav-logo span { color:var(--accent); }
        .nav-links { display:flex; align-items:center; gap:32px; list-style:none; }
        .nav-links a {
            font-size:0.95rem; font-weight:500; color:var(--text-secondary);
            padding:6px 0; position:relative; transition:var(--transition);
        }
        .nav-links a::after {
            content:''; position:absolute; left:0; bottom:-2px;
            width:0; height:2px; background:var(--accent);
            transition:var(--transition); border-radius:2px;
        }
        .nav-links a:hover { color:var(--primary); }
        .nav-links a:hover::after { width:100%; }
        .nav-links a.active { color:var(--primary); font-weight:600; }
        .nav-links a.active::after { width:100%; background:var(--accent); }
        .nav-toggle { display:none; flex-direction:column; gap:5px; cursor:pointer; padding:4px; background:none; border:none; }
        .nav-toggle span { display:block; width:26px; height:2.5px; background:var(--text-primary); border-radius:4px; transition:var(--transition); }
        /* Hero */
        .hero {
            position:relative; min-height:85vh; display:flex; align-items:center;
            background:url('/assets/images/backpic/back-1.png') center center / cover no-repeat;
            isolation:isolate;
        }
        .hero::before {
            content:''; position:absolute; inset:0;
            background:linear-gradient(135deg, rgba(13,17,23,0.82) 0%, rgba(26,42,108,0.65) 100%);
            z-index:1;
        }
        .hero-content { position:relative; z-index:2; max-width:800px; padding:60px 0; }
        .hero h1 {
            font-size:3.25rem; font-weight:800; color:#fff;
            line-height:1.15; letter-spacing:-0.03em; margin-bottom:1.25rem;
        }
        .hero h1 span { color:var(--accent); }
        .hero p {
            font-size:1.2rem; color:rgba(255,255,255,0.80);
            max-width:600px; margin-bottom:2.5rem; line-height:1.7;
        }
        .hero-actions { display:flex; gap:16px; flex-wrap:wrap; }
        /* Stats */
        .stats-grid { display:grid; grid-template-columns:repeat(4,1fr); gap:32px; }
        .stat-item { text-align:center; }
        .stat-number { font-size:2.8rem; font-weight:800; color:var(--primary); line-height:1.2; }
        .stat-number .suffix { font-size:1.6rem; color:var(--accent); }
        .stat-label { font-size:0.95rem; color:var(--text-secondary); margin-top:4px; }
        /* Features */
        .features-grid { display:grid; grid-template-columns:repeat(2,1fr); gap:28px; }
        .feature-card { padding:32px; border-radius:var(--radius); background:var(--bg-white); border:1px solid var(--border-light); transition:var(--transition); }
        .feature-card:hover { box-shadow:var(--shadow-md); transform:translateY(-3px); border-color:transparent; }
        .feature-icon { width:56px; height:56px; border-radius:16px; display:flex; align-items:center; justify-content:center; font-size:1.6rem; color:#fff; margin-bottom:18px; }
        .feature-icon.bg-primary { background:var(--primary); }
        .feature-icon.bg-accent { background:var(--accent); }
        .feature-icon.bg-teal { background:#0d9488; }
        .feature-icon.bg-amber { background:#d97706; }
        .feature-card h3 { font-size:1.2rem; font-weight:700; margin-bottom:8px; }
        .feature-card p { font-size:0.95rem; color:var(--text-secondary); line-height:1.7; }
        /* Category intro */
        .category-intro {
            background:var(--bg-light); border-radius:var(--radius-lg);
            padding:48px; display:flex; align-items:center; gap:48px;
        }
        .category-intro .text-side { flex:1; }
        .category-intro .img-side { flex:0 0 320px; border-radius:var(--radius); overflow:hidden; }
        .category-intro .img-side img { width:100%; height:240px; object-fit:cover; border-radius:var(--radius); }
        /* News list */
        .news-grid { display:grid; grid-template-columns:repeat(3,1fr); gap:28px; }
        .news-card .card-body { padding:20px; }
        .news-card .cat-tag { font-size:0.8rem; font-weight:600; color:var(--accent); margin-bottom:6px; display:block; }
        .news-card h4 { font-size:1.05rem; font-weight:700; margin-bottom:8px; line-height:1.4; }
        .news-card p { font-size:0.9rem; color:var(--text-secondary); line-height:1.6; display:-webkit-box; -webkit-line-clamp:2; -webkit-box-orient:vertical; overflow:hidden; }
        .news-card .meta { font-size:0.8rem; color:var(--text-light); margin-top:12px; display:flex; gap:16px; }
        /* Steps */
        .steps-grid { display:grid; grid-template-columns:repeat(4,1fr); gap:28px; counter-reset:step; }
        .step-card { text-align:center; padding:32px 20px; border-radius:var(--radius); background:var(--bg-white); border:1px solid var(--border-light); position:relative; transition:var(--transition); }
        .step-card:hover { box-shadow:var(--shadow-md); transform:translateY(-3px); }
        .step-card .step-num {
            width:48px; height:48px; border-radius:50%; background:var(--primary); color:#fff;
            display:flex; align-items:center; justify-content:center;
            font-size:1.3rem; font-weight:700; margin:0 auto 16px;
        }
        .step-card h4 { font-size:1.1rem; font-weight:700; margin-bottom:8px; }
        .step-card p { font-size:0.9rem; color:var(--text-secondary); line-height:1.6; }
        /* FAQ */
        .faq-list { max-width:860px; margin:0 auto; }
        .faq-item {
            border-bottom:1px solid var(--border-light); padding:20px 0;
            cursor:pointer; transition:var(--transition);
        }
        .faq-item:first-child { border-top:1px solid var(--border-light); }
        .faq-question {
            display:flex; align-items:center; justify-content:space-between;
            font-size:1.05rem; font-weight:600; color:var(--text-primary);
            gap:16px;
        }
        .faq-question i { color:var(--accent); transition:var(--transition); font-size:1.1rem; }
        .faq-item.open .faq-question i { transform:rotate(180deg); }
        .faq-answer {
            max-height:0; overflow:hidden; transition:max-height 0.4s ease, padding 0.3s ease;
            color:var(--text-secondary); line-height:1.7; font-size:0.95rem;
        }
        .faq-item.open .faq-answer { max-height:300px; padding-top:14px; }
        /* CTA */
        .cta-section {
            background:linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 100%);
            border-radius:var(--radius-lg); padding:60px 48px;
            text-align:center; color:#fff;
        }
        .cta-section h2 { font-size:2rem; font-weight:700; margin-bottom:12px; }
        .cta-section p { font-size:1.05rem; opacity:0.85; max-width:600px; margin:0 auto 32px; }
        /* Footer */
        .site-footer { background:var(--bg-dark); color:rgba(255,255,255,0.70); padding:48px 0 32px; }
        .footer-grid { display:grid; grid-template-columns:2fr 1fr 1fr 1fr; gap:40px; }
        .footer-brand .nav-logo { color:#fff; font-size:1.4rem; }
        .footer-brand p { font-size:0.9rem; margin-top:12px; line-height:1.7; max-width:300px; }
        .footer-col h5 { color:#fff; font-size:0.95rem; font-weight:600; margin-bottom:16px; }
        .footer-col ul { list-style:none; }
        .footer-col ul li { margin-bottom:10px; }
        .footer-col ul a { font-size:0.9rem; color:rgba(255,255,255,0.60); transition:var(--transition); }
        .footer-col ul a:hover { color:#fff; }
        .footer-bottom { border-top:1px solid rgba(255,255,255,0.08); margin-top:40px; padding-top:24px; display:flex; justify-content:space-between; align-items:center; flex-wrap:wrap; gap:12px; font-size:0.85rem; }
        /* Mobile */
        @media(max-width:1024px) {
            .stats-grid { grid-template-columns:repeat(2,1fr); gap:24px; }
            .features-grid { grid-template-columns:1fr; }
            .news-grid { grid-template-columns:repeat(2,1fr); }
            .steps-grid { grid-template-columns:repeat(2,1fr); }
            .footer-grid { grid-template-columns:repeat(2,1fr); gap:32px; }
            .category-intro { flex-direction:column; padding:32px; }
            .category-intro .img-side { flex:0 0 auto; width:100%; }
            .category-intro .img-side img { height:200px; }
        }
        @media(max-width:768px) {
            .section-padding { padding:56px 0; }
            .section-title { font-size:1.6rem; }
            .hero h1 { font-size:2.2rem; }
            .hero p { font-size:1rem; }
            .hero { min-height:70vh; }
            .nav-links { display:none; }
            .nav-toggle { display:flex; }
            .nav-center { position:static; transform:none; }
            .nav-wrap { justify-content:space-between; }
            .nav-links.open {
                display:flex; flex-direction:column; position:absolute; top:72px; left:0; right:0;
                background:rgba(255,255,255,0.98); backdrop-filter:blur(14px);
                padding:20px 24px; border-bottom:1px solid var(--border-light);
                gap:16px; box-shadow:var(--shadow-md); z-index:999;
            }
            .nav-links.open a { padding:8px 0; font-size:1.05rem; }
            .stats-grid { grid-template-columns:repeat(2,1fr); gap:20px; }
            .stat-number { font-size:2.2rem; }
            .news-grid { grid-template-columns:1fr; }
            .steps-grid { grid-template-columns:1fr 1fr; gap:16px; }
            .cta-section { padding:40px 24px; }
            .cta-section h2 { font-size:1.5rem; }
            .footer-grid { grid-template-columns:1fr 1fr; gap:28px; }
            .footer-bottom { flex-direction:column; text-align:center; }
            .hero-actions { flex-direction:column; align-items:flex-start; }
            .hero-actions .btn { width:100%; justify-content:center; }
            .feature-card { padding:24px; }
            .faq-question { font-size:0.95rem; }
        }
        @media(max-width:520px) {
            .container { padding:0 16px; }
            .section-padding { padding:40px 0; }
            .hero h1 { font-size:1.75rem; }
            .stats-grid { grid-template-columns:1fr 1fr; gap:16px; }
            .stat-number { font-size:1.8rem; }
            .steps-grid { grid-template-columns:1fr; }
            .footer-grid { grid-template-columns:1fr; }
            .category-intro { padding:20px; }
            .news-card .card-body { padding:16px; }
            .btn { padding:12px 24px; font-size:0.9rem; }
        }
        .empty-news { text-align:center; padding:40px 20px; color:var(--text-light); font-size:1rem; background:var(--bg-light); border-radius:var(--radius); }
        .skeleton { background:linear-gradient(90deg,#f0f0f0 25%,#e0e0e0 50%,#f0f0f0 75%); background-size:200% 100%; animation:shimmer 1.5s infinite; border-radius:6px; }
        @keyframes shimmer { 0%{background-position:200% 0} 100%{background-position:-200% 0} }

/* roulang page: article */
:root {
            --primary: #6366f1;
            --primary-light: #818cf8;
            --primary-dark: #4f46e5;
            --accent: #f59e0b;
            --accent-light: #fbbf24;
            --bg-body: #f8fafc;
            --bg-card: #ffffff;
            --text-body: #1e293b;
            --text-muted: #64748b;
            --border-color: #e2e8f0;
            --shadow-sm: 0 1px 3px rgba(0,0,0,0.06);
            --shadow-md: 0 4px 16px rgba(0,0,0,0.08);
            --shadow-lg: 0 12px 40px rgba(0,0,0,0.10);
            --radius: 1rem;
            --radius-sm: 0.5rem;
        }
        * { box-sizing: border-box; margin: 0; padding: 0; }
        body { font-family: 'Noto Sans SC', 'PingFang SC', 'Microsoft YaHei', sans-serif; background: var(--bg-body); color: var(--text-body); line-height: 1.7; -webkit-font-smoothing: antialiased; }
        a { text-decoration: none; color: inherit; transition: color 0.2s; }
        img { max-width: 100%; height: auto; display: block; border-radius: var(--radius-sm); }
        .container { max-width: 1280px; margin: 0 auto; padding: 0 24px; }
        @media (max-width: 768px) { .container { padding: 0 16px; } }

        /* Header & Navigation */
        .site-header { background: rgba(255,255,255,0.92); backdrop-filter: blur(20px); border-bottom: 1px solid rgba(226,232,240,0.6); position: sticky; top: 0; z-index: 50; }
        .nav-wrap { display: flex; align-items: center; justify-content: space-between; height: 72px; position: relative; }
        .nav-links { display: flex; align-items: center; gap: 8px; list-style: none; }
        .nav-links li a { display: inline-flex; align-items: center; padding: 8px 18px; font-size: 0.95rem; font-weight: 500; color: var(--text-muted); border-radius: 999px; transition: all 0.25s; letter-spacing: 0.02em; }
        .nav-links li a:hover { color: var(--primary); background: rgba(99,102,241,0.08); }
        .nav-links li a.active { color: #fff; background: var(--primary); box-shadow: 0 4px 12px rgba(99,102,241,0.30); }
        .nav-center { position: absolute; left: 50%; top: 50%; transform: translate(-50%, -50%); }
        .nav-logo { font-size: 1.6rem; font-weight: 800; color: var(--text-body); letter-spacing: -0.02em; display: flex; align-items: center; gap: 2px; }
        .nav-logo span { color: var(--primary); }
        .nav-toggle { display: none; flex-direction: column; gap: 5px; background: none; border: none; cursor: pointer; padding: 6px; border-radius: 8px; transition: background 0.2s; }
        .nav-toggle:hover { background: rgba(99,102,241,0.08); }
        .nav-toggle span { display: block; width: 24px; height: 2.5px; background: var(--text-body); border-radius: 4px; transition: all 0.3s; }
        @media (max-width: 900px) {
            .nav-links { display: none; position: absolute; top: 72px; left: 0; right: 0; background: rgba(255,255,255,0.98); backdrop-filter: blur(20px); flex-direction: column; padding: 16px 24px 24px; gap: 4px; border-bottom: 1px solid var(--border-color); box-shadow: var(--shadow-md); }
            .nav-links.open { display: flex; }
            .nav-links li a { width: 100%; justify-content: center; padding: 12px 18px; }
            .nav-center { position: static; transform: none; }
            .nav-wrap { justify-content: space-between; }
            .nav-toggle { display: flex; }
        }
        @media (max-width: 520px) {
            .nav-logo { font-size: 1.3rem; }
            .nav-wrap { height: 64px; }
            .nav-links { top: 64px; }
        }

        /* Breadcrumb */
        .breadcrumb { display: flex; align-items: center; gap: 8px; font-size: 0.9rem; color: var(--text-muted); padding: 20px 0 8px; flex-wrap: wrap; }
        .breadcrumb a { color: var(--text-muted); transition: color 0.2s; }
        .breadcrumb a:hover { color: var(--primary); }
        .breadcrumb .sep { color: var(--border-color); }

        /* Article Content */
        .article-wrapper { max-width: 860px; margin: 0 auto; padding: 32px 0 64px; }
        .article-header { margin-bottom: 32px; }
        .article-category { display: inline-flex; align-items: center; gap: 6px; background: rgba(99,102,241,0.10); color: var(--primary); font-size: 0.8rem; font-weight: 600; padding: 4px 14px; border-radius: 999px; letter-spacing: 0.03em; }
        .article-title { font-size: 2.2rem; font-weight: 800; line-height: 1.3; margin: 16px 0 12px; color: var(--text-body); letter-spacing: -0.01em; }
        .article-meta { display: flex; align-items: center; gap: 20px; font-size: 0.9rem; color: var(--text-muted); flex-wrap: wrap; }
        .article-meta i { margin-right: 4px; }
        .article-cover { margin: 24px 0 32px; border-radius: var(--radius); overflow: hidden; box-shadow: var(--shadow-md); }
        .article-cover img { width: 100%; height: auto; aspect-ratio: 16/9; object-fit: cover; }
        .article-body { font-size: 1.05rem; line-height: 1.9; color: #334155; }
        .article-body p { margin-bottom: 1.4em; }
        .article-body h2 { font-size: 1.6rem; font-weight: 700; margin: 2em 0 0.8em; color: var(--text-body); }
        .article-body h3 { font-size: 1.25rem; font-weight: 600; margin: 1.6em 0 0.6em; color: var(--text-body); }
        .article-body ul, .article-body ol { margin: 0 0 1.4em 1.6em; }
        .article-body li { margin-bottom: 0.4em; }
        .article-body a { color: var(--primary); text-decoration: underline; text-underline-offset: 3px; }
        .article-body a:hover { color: var(--primary-dark); }
        .article-body blockquote { border-left: 4px solid var(--primary); background: rgba(99,102,241,0.04); padding: 16px 24px; margin: 1.6em 0; border-radius: 0 var(--radius-sm) var(--radius-sm) 0; color: var(--text-muted); font-style: italic; }
        .article-body img { border-radius: var(--radius-sm); margin: 1.6em auto; box-shadow: var(--shadow-sm); }
        .article-body .highlight { background: rgba(245,158,11,0.10); padding: 0 4px; border-radius: 4px; }

        /* Not Found */
        .not-found { text-align: center; padding: 80px 24px; }
        .not-found i { font-size: 4rem; color: var(--text-muted); margin-bottom: 24px; display: block; }
        .not-found h2 { font-size: 1.8rem; font-weight: 700; margin-bottom: 12px; }
        .not-found p { color: var(--text-muted); margin-bottom: 24px; }
        .not-found a { display: inline-flex; align-items: center; gap: 8px; padding: 12px 32px; background: var(--primary); color: #fff; border-radius: 999px; font-weight: 600; transition: all 0.25s; }
        .not-found a:hover { background: var(--primary-dark); transform: translateY(-2px); box-shadow: 0 8px 24px rgba(99,102,241,0.30); }

        /* Related Posts */
        .related-section { background: #fff; border-top: 1px solid var(--border-color); padding: 48px 0; }
        .related-title { font-size: 1.4rem; font-weight: 700; margin-bottom: 24px; display: flex; align-items: center; gap: 10px; }
        .related-title i { color: var(--primary); }
        .related-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 24px; }
        .related-card { background: var(--bg-body); border-radius: var(--radius); overflow: hidden; transition: all 0.3s; border: 1px solid var(--border-color); }
        .related-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); }
        .related-card img { width: 100%; aspect-ratio: 16/9; object-fit: cover; }
        .related-card-body { padding: 16px 20px 20px; }
        .related-card-body h4 { font-size: 1rem; font-weight: 600; line-height: 1.4; margin-bottom: 6px; }
        .related-card-body h4 a { color: var(--text-body); }
        .related-card-body h4 a:hover { color: var(--primary); }
        .related-card-body .meta { font-size: 0.8rem; color: var(--text-muted); }
        @media (max-width: 900px) { .related-grid { grid-template-columns: repeat(2,1fr); } }
        @media (max-width: 560px) { .related-grid { grid-template-columns: 1fr; } }

        /* Footer */
        .site-footer { background: #0f172a; color: rgba(255,255,255,0.85); padding: 60px 0 0; }
        .footer-grid { display: grid; grid-template-columns: 1.6fr 1fr 1fr 1fr; gap: 40px; padding-bottom: 40px; border-bottom: 1px solid rgba(255,255,255,0.08); }
        .footer-brand .nav-logo { color: #fff; font-size: 1.5rem; }
        .footer-brand p { margin-top: 16px; font-size: 0.9rem; line-height: 1.7; color: rgba(255,255,255,0.60); max-width: 320px; }
        .footer-col h5 { font-size: 0.95rem; font-weight: 600; color: #fff; margin-bottom: 16px; letter-spacing: 0.03em; }
        .footer-col ul { list-style: none; }
        .footer-col ul li { margin-bottom: 10px; }
        .footer-col ul li a { font-size: 0.88rem; color: rgba(255,255,255,0.55); transition: color 0.2s; }
        .footer-col ul li a:hover { color: var(--primary-light); }
        .footer-bottom { display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 12px; padding: 24px 0; font-size: 0.85rem; color: rgba(255,255,255,0.45); }
        .footer-bottom a:hover { color: var(--primary-light); }
        @media (max-width: 900px) { .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; } .footer-brand { grid-column: 1 / -1; } }
        @media (max-width: 520px) { .footer-grid { grid-template-columns: 1fr; gap: 24px; } .footer-bottom { flex-direction: column; text-align: center; } }

        /* Article page specific */
        .article-banner { position: relative; background: linear-gradient(135deg, #1e293b 0%, #0f172a 100%); padding: 48px 0 0; overflow: hidden; }
        .article-banner::before { content: ''; position: absolute; inset: 0; background: url('/assets/images/backpic/back-2.png') center/cover no-repeat; opacity: 0.12; }
        .article-banner .container { position: relative; z-index: 2; }
        .article-banner .breadcrumb { padding-top: 0; }
        .article-banner .breadcrumb, .article-banner .breadcrumb a { color: rgba(255,255,255,0.55); }
        .article-banner .breadcrumb .sep { color: rgba(255,255,255,0.25); }
        .article-banner .article-category { background: rgba(99,102,241,0.20); color: var(--primary-light); }
        .article-banner .article-title { color: #fff; }
        .article-banner .article-meta { color: rgba(255,255,255,0.55); }

        /* Scroll animation */
        .fade-up { opacity: 0; transform: translateY(24px); transition: all 0.6s ease; }
        .fade-up.show { opacity: 1; transform: translateY(0); }

/* roulang page: category1 */
/* ===== Design Variables ===== */
        :root {
            --primary: #F59E0B;
            --primary-hover: #D97706;
            --primary-light: #FBBF24;
            --secondary: #EF4444;
            --secondary-hover: #DC2626;
            --bg-dark: #0B1120;
            --bg-card: #1E293B;
            --bg-card-hover: #273548;
            --bg-section: #0F172A;
            --bg-section-alt: #131C31;
            --text-primary: #F1F5F9;
            --text-secondary: #94A3B8;
            --text-muted: #64748B;
            --border-color: rgba(255, 255, 255, 0.08);
            --border-hover: rgba(245, 158, 11, 0.30);
            --radius-sm: 8px;
            --radius-md: 14px;
            --radius-lg: 20px;
            --shadow-sm: 0 4px 12px rgba(0, 0, 0, 0.25);
            --shadow-md: 0 8px 28px rgba(0, 0, 0, 0.35);
            --shadow-lg: 0 16px 48px rgba(0, 0, 0, 0.45);
            --transition: 0.28s cubic-bezier(0.25, 0.46, 0.45, 0.94);
            --font-sans: 'Inter', system-ui, -apple-system, 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif;
            --container-max: 1200px;
            --nav-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);
            background: var(--bg-dark);
            color: var(--text-primary);
            line-height: 1.7;
            font-size: 16px;
        }

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

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

        a:focus-visible,
        button:focus-visible,
        input:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 3px;
        }

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

        ul {
            list-style: none;
        }

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

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

        /* ===== Header / Navigation ===== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: var(--nav-height);
            background: rgba(11, 17, 32, 0.92);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid var(--border-color);
            z-index: 1000;
            transition: var(--transition);
        }

        .site-header.scrolled {
            background: rgba(11, 17, 32, 0.98);
            box-shadow: var(--shadow-sm);
        }

        .nav-wrap {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: var(--nav-height);
            padding-top: 0;
            padding-bottom: 0;
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .nav-links li a {
            display: inline-block;
            padding: 8px 18px;
            font-size: 0.95rem;
            font-weight: 500;
            color: var(--text-secondary);
            border-radius: var(--radius-sm);
            transition: var(--transition);
            position: relative;
            letter-spacing: 0.3px;
        }

        .nav-links li a:hover {
            color: var(--text-primary);
            background: rgba(255, 255, 255, 0.06);
        }

        .nav-links li a.active {
            color: var(--primary);
            background: rgba(245, 158, 11, 0.12);
        }

        .nav-links li a.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 50%;
            transform: translateX(-50%);
            width: 20px;
            height: 3px;
            background: var(--primary);
            border-radius: 4px;
        }

        .nav-center {
            flex-shrink: 0;
            text-align: center;
        }

        .nav-logo {
            font-size: 1.6rem;
            font-weight: 800;
            letter-spacing: 1px;
            color: var(--text-primary);
            transition: var(--transition);
        }

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

        .nav-logo:hover {
            opacity: 0.85;
        }

        .nav-toggle {
            display: none;
            flex-direction: column;
            gap: 5px;
            padding: 8px;
            border-radius: var(--radius-sm);
            background: transparent;
        }

        .nav-toggle span {
            display: block;
            width: 26px;
            height: 2.5px;
            background: var(--text-primary);
            border-radius: 4px;
            transition: var(--transition);
        }

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

        /* Mobile Nav */
        @media (max-width: 900px) {
            .nav-links {
                display: none;
                position: fixed;
                top: var(--nav-height);
                left: 0;
                width: 100%;
                background: rgba(11, 17, 32, 0.98);
                backdrop-filter: blur(20px);
                -webkit-backdrop-filter: blur(20px);
                flex-direction: column;
                gap: 0;
                padding: 12px 0 24px;
                border-bottom: 1px solid var(--border-color);
                box-shadow: var(--shadow-lg);
            }

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

            .nav-links li a {
                display: block;
                padding: 14px 24px;
                font-size: 1.05rem;
                border-radius: 0;
                border-bottom: 1px solid rgba(255, 255, 255, 0.04);
            }

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

            .nav-links li a.active {
                background: rgba(245, 158, 11, 0.15);
                color: var(--primary);
                border-left: 3px solid var(--primary);
            }

            .nav-toggle {
                display: flex;
            }

            .nav-center {
                flex: 1;
                text-align: center;
            }

            .nav-wrap {
                gap: 8px;
            }
        }

        @media (max-width: 520px) {
            .nav-logo {
                font-size: 1.3rem;
            }

            .nav-links li a {
                font-size: 0.95rem;
                padding: 12px 20px;
            }
        }

        /* ===== Hero / Banner ===== */
        .category-hero {
            position: relative;
            padding: 140px 0 90px;
            margin-top: var(--nav-height);
            background: linear-gradient(145deg, rgba(11, 17, 32, 0.92), rgba(15, 23, 42, 0.88)), url('/assets/images/backpic/back-1.png') center center / cover no-repeat;
            border-bottom: 1px solid var(--border-color);
            overflow: hidden;
        }

        .category-hero::before {
            content: '';
            position: absolute;
            top: -50%;
            right: -20%;
            width: 600px;
            height: 600px;
            background: radial-gradient(circle, rgba(245, 158, 11, 0.08), transparent 70%);
            pointer-events: none;
        }

        .category-hero::after {
            content: '';
            position: absolute;
            bottom: -30%;
            left: -10%;
            width: 400px;
            height: 400px;
            background: radial-gradient(circle, rgba(239, 68, 68, 0.06), transparent 70%);
            pointer-events: none;
        }

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

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(245, 158, 11, 0.15);
            color: var(--primary);
            padding: 6px 18px;
            border-radius: 50px;
            font-size: 0.85rem;
            font-weight: 600;
            letter-spacing: 0.5px;
            border: 1px solid rgba(245, 158, 11, 0.20);
            margin-bottom: 20px;
        }

        .hero-badge i {
            font-size: 0.8rem;
        }

        .category-hero h1 {
            font-size: clamp(2.2rem, 6vw, 3.8rem);
            font-weight: 800;
            line-height: 1.2;
            letter-spacing: -0.5px;
            max-width: 780px;
            margin-bottom: 20px;
        }

        .category-hero h1 span {
            color: var(--primary);
        }

        .category-hero p {
            font-size: clamp(1rem, 2vw, 1.2rem);
            color: var(--text-secondary);
            max-width: 640px;
            line-height: 1.8;
            margin-bottom: 32px;
        }

        .hero-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 14px;
            align-items: center;
        }

        .btn-primary {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            background: var(--primary);
            color: #0B1120;
            font-weight: 700;
            font-size: 1rem;
            padding: 14px 32px;
            border-radius: var(--radius-md);
            transition: var(--transition);
            box-shadow: 0 4px 20px rgba(245, 158, 11, 0.25);
        }

        .btn-primary:hover {
            background: var(--primary-hover);
            transform: translateY(-2px);
            box-shadow: 0 8px 30px rgba(245, 158, 11, 0.35);
            color: #0B1120;
        }

        .btn-secondary {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            background: rgba(255, 255, 255, 0.06);
            color: var(--text-primary);
            font-weight: 600;
            font-size: 1rem;
            padding: 14px 32px;
            border-radius: var(--radius-md);
            border: 1px solid var(--border-color);
            transition: var(--transition);
        }

        .btn-secondary:hover {
            background: rgba(255, 255, 255, 0.10);
            border-color: var(--border-hover);
            transform: translateY(-2px);
        }

        @media (max-width: 768px) {
            .category-hero {
                padding: 110px 0 60px;
            }

            .category-hero h1 {
                font-size: 2rem;
            }

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

            .btn-primary,
            .btn-secondary {
                justify-content: center;
                padding: 12px 24px;
            }
        }

        /* ===== Section共用 ===== */
        .section {
            padding: 80px 0;
        }

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

        .section-header {
            text-align: center;
            max-width: 700px;
            margin: 0 auto 56px;
        }

        .section-header h2 {
            font-size: clamp(1.8rem, 4vw, 2.6rem);
            font-weight: 700;
            letter-spacing: -0.3px;
            margin-bottom: 16px;
        }

        .section-header h2 span {
            color: var(--primary);
        }

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

        .section-label {
            display: inline-block;
            background: rgba(245, 158, 11, 0.12);
            color: var(--primary);
            padding: 4px 16px;
            border-radius: 50px;
            font-size: 0.8rem;
            font-weight: 600;
            letter-spacing: 0.5px;
            margin-bottom: 14px;
            border: 1px solid rgba(245, 158, 11, 0.15);
        }

        @media (max-width: 768px) {
            .section {
                padding: 56px 0;
            }

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

        /* ===== Card Grid ===== */
        .card-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(270px, 1fr));
            gap: 24px;
        }

        .card {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            padding: 28px 24px 24px;
            transition: var(--transition);
            position: relative;
            overflow: hidden;
        }

        .card:hover {
            background: var(--bg-card-hover);
            border-color: var(--border-hover);
            transform: translateY(-4px);
            box-shadow: var(--shadow-md);
        }

        .card .card-icon {
            width: 52px;
            height: 52px;
            display: flex;
            align-items: center;
            justify-content: center;
            background: rgba(245, 158, 11, 0.12);
            border-radius: var(--radius-sm);
            font-size: 1.6rem;
            color: var(--primary);
            margin-bottom: 18px;
            transition: var(--transition);
        }

        .card:hover .card-icon {
            background: rgba(245, 158, 11, 0.20);
            transform: scale(1.05);
        }

        .card h3 {
            font-size: 1.2rem;
            font-weight: 700;
            margin-bottom: 10px;
            letter-spacing: -0.2px;
        }

        .card p {
            color: var(--text-secondary);
            font-size: 0.95rem;
            line-height: 1.7;
            margin-bottom: 16px;
        }

        .card .card-tag {
            display: inline-block;
            background: rgba(255, 255, 255, 0.05);
            color: var(--text-muted);
            padding: 2px 12px;
            border-radius: 50px;
            font-size: 0.75rem;
            font-weight: 500;
            border: 1px solid var(--border-color);
        }

        .card .card-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            color: var(--primary);
            font-weight: 600;
            font-size: 0.9rem;
            margin-top: 8px;
            transition: var(--transition);
        }

        .card .card-link:hover {
            gap: 12px;
            color: var(--primary-light);
        }

        .card-img-wrap {
            border-radius: var(--radius-sm);
            overflow: hidden;
            margin-bottom: 18px;
            aspect-ratio: 16 / 9;
            background: var(--bg-dark);
        }

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

        .card:hover .card-img-wrap img {
            transform: scale(1.04);
        }

        @media (max-width: 600px) {
            .card-grid {
                grid-template-columns: 1fr;
                gap: 18px;
            }

            .card {
                padding: 22px 18px 18px;
            }
        }

        /* ===== 赛事推荐 ===== */
        .match-list {
            display: flex;
            flex-direction: column;
            gap: 16px;
        }

        .match-item {
            display: flex;
            align-items: center;
            justify-content: space-between;
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            padding: 18px 24px;
            transition: var(--transition);
            flex-wrap: wrap;
            gap: 12px;
        }

        .match-item:hover {
            background: var(--bg-card-hover);
            border-color: var(--border-hover);
            transform: translateX(4px);
        }

        .match-info {
            display: flex;
            align-items: center;
            gap: 16px;
            flex: 1;
            min-width: 180px;
        }

        .match-info .match-game {
            font-weight: 600;
            font-size: 0.85rem;
            color: var(--primary);
            background: rgba(245, 158, 11, 0.10);
            padding: 2px 12px;
            border-radius: 50px;
            white-space: nowrap;
        }

        .match-info .match-teams {
            font-weight: 600;
            font-size: 1rem;
            color: var(--text-primary);
        }

        .match-odds {
            display: flex;
            align-items: center;
            gap: 20px;
        }

        .match-odds .odds-item {
            text-align: center;
        }

        .match-odds .odds-item .odds-label {
            font-size: 0.7rem;
            color: var(--text-muted);
            text-transform: uppercase;
            letter-spacing: 0.5px;
        }

        .match-odds .odds-item .odds-value {
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--primary);
        }

        .match-status {
            font-size: 0.8rem;
            font-weight: 600;
            padding: 4px 14px;
            border-radius: 50px;
            background: rgba(34, 197, 94, 0.15);
            color: #22C55E;
            white-space: nowrap;
        }

        .match-status.live {
            background: rgba(239, 68, 68, 0.15);
            color: var(--secondary);
            animation: pulse-dot 1.8s infinite;
        }

        @keyframes pulse-dot {
            0%,
            100% {
                opacity: 1;
            }
            50% {
                opacity: 0.5;
            }
        }

        @media (max-width: 768px) {
            .match-item {
                padding: 14px 16px;
                flex-direction: column;
                align-items: stretch;
            }

            .match-info {
                flex-wrap: wrap;
            }

            .match-odds {
                justify-content: space-around;
                padding: 8px 0;
            }

            .match-status {
                align-self: flex-start;
            }
        }

        /* ===== 流程步骤 ===== */
        .steps-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
            gap: 32px;
            counter-reset: step-counter;
        }

        .step-item {
            text-align: center;
            padding: 32px 20px 24px;
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            transition: var(--transition);
            position: relative;
        }

        .step-item:hover {
            background: var(--bg-card-hover);
            border-color: var(--border-hover);
            transform: translateY(-4px);
            box-shadow: var(--shadow-md);
        }

        .step-item .step-number {
            width: 56px;
            height: 56px;
            margin: 0 auto 18px;
            display: flex;
            align-items: center;
            justify-content: center;
            background: rgba(245, 158, 11, 0.12);
            border-radius: 50%;
            font-size: 1.5rem;
            font-weight: 800;
            color: var(--primary);
            transition: var(--transition);
        }

        .step-item:hover .step-number {
            background: var(--primary);
            color: #0B1120;
            transform: scale(1.08);
        }

        .step-item h4 {
            font-size: 1.1rem;
            font-weight: 700;
            margin-bottom: 10px;
        }

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

        @media (max-width: 600px) {
            .steps-grid {
                grid-template-columns: 1fr 1fr;
                gap: 16px;
            }

            .step-item {
                padding: 24px 14px 18px;
            }
        }

        @media (max-width: 400px) {
            .steps-grid {
                grid-template-columns: 1fr;
            }
        }

        /* ===== FAQ ===== */
        .faq-list {
            max-width: 780px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .faq-item {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: var(--transition);
        }

        .faq-item:hover {
            border-color: var(--border-hover);
        }

        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 20px 24px;
            font-weight: 600;
            font-size: 1.05rem;
            color: var(--text-primary);
            cursor: pointer;
            transition: var(--transition);
            gap: 16px;
            width: 100%;
            text-align: left;
            background: transparent;
        }

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

        .faq-question i {
            font-size: 0.9rem;
            color: var(--text-muted);
            transition: var(--transition);
            flex-shrink: 0;
        }

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

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.45s cubic-bezier(0.25, 0.46, 0.45, 0.94), padding 0.3s ease;
            padding: 0 24px;
        }

        .faq-item.open .faq-answer {
            max-height: 400px;
            padding: 0 24px 20px;
        }

        .faq-answer p {
            color: var(--text-secondary);
            font-size: 0.95rem;
            line-height: 1.8;
        }

        @media (max-width: 768px) {
            .faq-question {
                padding: 16px 18px;
                font-size: 0.95rem;
            }

            .faq-item.open .faq-answer {
                padding: 0 18px 16px;
            }
        }

        /* ===== CTA ===== */
        .cta-section {
            padding: 80px 0;
            background: linear-gradient(145deg, rgba(245, 158, 11, 0.06), rgba(239, 68, 68, 0.04)), var(--bg-section);
            border-top: 1px solid var(--border-color);
            border-bottom: 1px solid var(--border-color);
            text-align: center;
        }

        .cta-section h2 {
            font-size: clamp(1.8rem, 4vw, 2.6rem);
            font-weight: 700;
            margin-bottom: 16px;
        }

        .cta-section h2 span {
            color: var(--primary);
        }

        .cta-section p {
            color: var(--text-secondary);
            font-size: 1.1rem;
            max-width: 600px;
            margin: 0 auto 32px;
            line-height: 1.8;
        }

        .cta-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            justify-content: center;
        }

        @media (max-width: 768px) {
            .cta-section {
                padding: 56px 0;
            }

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

            .cta-actions .btn-primary,
            .cta-actions .btn-secondary {
                justify-content: center;
            }
        }

        /* ===== Footer ===== */
        .site-footer {
            background: #070C18;
            border-top: 1px solid var(--border-color);
            padding: 56px 0 28px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 40px;
        }

        .footer-brand .nav-logo {
            font-size: 1.4rem;
            display: inline-block;
            margin-bottom: 14px;
        }

        .footer-brand p {
            color: var(--text-secondary);
            font-size: 0.9rem;
            line-height: 1.8;
            max-width: 340px;
        }

        .footer-col h5 {
            font-size: 0.95rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 18px;
            letter-spacing: 0.3px;
        }

        .footer-col ul li {
            margin-bottom: 10px;
        }

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

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

        .footer-bottom {
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 12px;
            padding-top: 24px;
            border-top: 1px solid var(--border-color);
            font-size: 0.85rem;
            color: var(--text-muted);
        }

        @media (max-width: 900px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 32px 24px;
            }

            .footer-brand {
                grid-column: 1 / -1;
            }

            .footer-brand p {
                max-width: 100%;
            }
        }

        @media (max-width: 520px) {
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }

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

        /* ===== Utility ===== */
        .text-glow {
            text-shadow: 0 0 40px rgba(245, 158, 11, 0.15);
        }

        .line-clamp-2 {
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .line-clamp-3 {
            display: -webkit-box;
            -webkit-line-clamp: 3;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        /* ===== Scrollbar ===== */
        ::-webkit-scrollbar {
            width: 6px;
        }

        ::-webkit-scrollbar-track {
            background: var(--bg-dark);
        }

        ::-webkit-scrollbar-thumb {
            background: var(--text-muted);
            border-radius: 12px;
        }

        ::-webkit-scrollbar-thumb:hover {
            background: var(--text-secondary);
        }

        /* ===== Selection ===== */
        ::selection {
            background: rgba(245, 158, 11, 0.30);
            color: var(--text-primary);
        }