/* roulang page: index */
/* ===== Design Variables ===== */
        :root {
            --primary: #0f1f5c;
            --primary-light: #1a3a8a;
            --primary-dark: #0a1238;
            --secondary: #c9a84c;
            --secondary-light: #e0c87a;
            --secondary-dark: #a8882e;
            --bg-white: #ffffff;
            --bg-light: #f4f6fc;
            --bg-dark: #0b132e;
            --text-dark: #141a2b;
            --text-body: #2d3349;
            --text-muted: #6b7280;
            --text-white: #ffffff;
            --text-gold: #c9a84c;
            --border: #e2e6f0;
            --border-light: #f0f2f8;
            --radius-sm: 8px;
            --radius-md: 14px;
            --radius-lg: 20px;
            --shadow-sm: 0 2px 12px rgba(15, 31, 92, 0.06);
            --shadow-md: 0 8px 30px rgba(15, 31, 92, 0.10);
            --shadow-lg: 0 20px 50px rgba(15, 31, 92, 0.14);
            --shadow-gold: 0 8px 30px rgba(201, 168, 76, 0.25);
            --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, 'Noto Sans SC', sans-serif;
            --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --max-width: 1200px;
        }

        /* ===== 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-family);
            font-size: 16px;
            line-height: 1.7;
            color: var(--text-body);
            background: var(--bg-white);
            overflow-x: hidden;
        }
        a { color: var(--primary); text-decoration: none; transition: var(--transition); }
        a:hover { color: var(--secondary); }
        img { max-width: 100%; height: auto; display: block; }
        button, input, textarea { font-family: inherit; font-size: inherit; outline: none; border: none; }
        button { cursor: pointer; background: none; }
        ul, ol { list-style: none; }
        h1, h2, h3, h4, h5, h6 { line-height: 1.3; color: var(--text-dark); font-weight: 700; }
        h1 { font-size: clamp(2.2rem, 5vw, 3.8rem); }
        h2 { font-size: clamp(1.8rem, 3.5vw, 2.8rem); }
        h3 { font-size: clamp(1.3rem, 2.2vw, 1.8rem); }
        h4 { font-size: 1.25rem; }
        p { margin-bottom: 1rem; }
        .container { width: 100%; max-width: var(--max-width); margin: 0 auto; padding: 0 24px; }
        .section { padding: 80px 0; }
        .section-title { text-align: center; margin-bottom: 48px; }
        .section-title h2 { font-weight: 800; letter-spacing: -0.5px; position: relative; display: inline-block; }
        .section-title h2::after { content: ''; display: block; width: 60px; height: 4px; background: var(--secondary); border-radius: 4px; margin: 12px auto 0; }
        .section-title p { color: var(--text-muted); font-size: 1.1rem; margin-top: 12px; max-width: 640px; margin-left: auto; margin-right: auto; }
        .text-center { text-align: center; }
        .text-gold { color: var(--text-gold); }
        .mb-1 { margin-bottom: 0.5rem; }
        .mb-2 { margin-bottom: 1rem; }
        .mb-3 { margin-bottom: 1.5rem; }
        .mb-4 { margin-bottom: 2rem; }
        .mb-5 { margin-bottom: 3rem; }

        /* ===== Buttons ===== */
        .btn {
            display: inline-flex; align-items: center; gap: 8px; padding: 14px 32px; border-radius: var(--radius-md);
            font-weight: 600; font-size: 1rem; transition: var(--transition); border: 2px solid transparent; line-height: 1.2;
        }
        .btn-primary {
            background: var(--secondary); color: var(--primary-dark); border-color: var(--secondary);
            box-shadow: var(--shadow-gold);
        }
        .btn-primary:hover { background: var(--secondary-light); border-color: var(--secondary-light); transform: translateY(-2px); box-shadow: 0 12px 40px rgba(201, 168, 76, 0.35); color: var(--primary-dark); }
        .btn-primary:active { transform: translateY(0); box-shadow: var(--shadow-gold); }
        .btn-outline {
            background: transparent; color: var(--text-white); border-color: rgba(255,255,255,0.5);
        }
        .btn-outline:hover { background: rgba(255,255,255,0.12); border-color: var(--text-white); color: var(--text-white); transform: translateY(-2px); }
        .btn-outline:active { transform: translateY(0); }
        .btn-secondary {
            background: var(--primary); color: var(--text-white); border-color: var(--primary);
        }
        .btn-secondary:hover { background: var(--primary-light); border-color: var(--primary-light); transform: translateY(-2px); box-shadow: var(--shadow-md); color: var(--text-white); }
        .btn-lg { padding: 18px 44px; font-size: 1.1rem; border-radius: var(--radius-lg); }
        .btn-sm { padding: 8px 18px; font-size: 0.875rem; border-radius: var(--radius-sm); }

        /* ===== Badge / Tag ===== */
        .badge {
            display: inline-block; padding: 4px 14px; border-radius: 50px; font-size: 0.8rem; font-weight: 600;
            background: rgba(201, 168, 76, 0.15); color: var(--secondary-dark); letter-spacing: 0.3px;
        }
        .badge-primary { background: rgba(15, 31, 92, 0.10); color: var(--primary); }
        .badge-white { background: rgba(255,255,255,0.18); color: var(--text-white); }

        /* ===== Card ===== */
        .card {
            background: var(--bg-white); border-radius: var(--radius-md); overflow: hidden;
            box-shadow: var(--shadow-sm); transition: var(--transition); border: 1px solid var(--border-light);
        }
        .card:hover { box-shadow: var(--shadow-md); transform: translateY(-4px); border-color: var(--border); }
        .card-img { width: 100%; aspect-ratio: 16/10; object-fit: cover; }
        .card-body { padding: 24px; }
        .card-title { font-size: 1.15rem; font-weight: 700; margin-bottom: 8px; color: var(--text-dark); }
        .card-text { color: var(--text-muted); font-size: 0.95rem; line-height: 1.6; }
        .card-meta { display: flex; align-items: center; gap: 16px; font-size: 0.85rem; color: var(--text-muted); margin-top: 12px; }
        .card-meta i { margin-right: 4px; }

        /* ===== Grid ===== */
        .grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 30px; }
        .grid-3 { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 28px; }
        .grid-4 { display: grid; grid-template-columns: 1fr 1fr 1fr 1fr; gap: 24px; }

        /* ===== Header / Nav ===== */
        .header {
            position: fixed; top: 0; left: 0; right: 0; z-index: 1000;
            background: rgba(11, 19, 46, 0.92); backdrop-filter: blur(20px); -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid rgba(255,255,255,0.06); transition: var(--transition);
        }
        .header .container { display: flex; align-items: center; justify-content: space-between; height: 72px; }
        .logo { font-size: 1.4rem; font-weight: 800; color: var(--text-white); letter-spacing: -0.3px; display: flex; align-items: center; gap: 10px; }
        .logo i { color: var(--secondary); font-size: 1.6rem; }
        .logo span { color: var(--secondary); }
        .logo:hover { color: var(--text-white); opacity: 0.92; }
        .nav-desktop { display: flex; align-items: center; gap: 8px; }
        .nav-desktop a {
            padding: 8px 18px; border-radius: var(--radius-sm); color: rgba(255,255,255,0.75); font-weight: 500;
            font-size: 0.95rem; transition: var(--transition); position: relative;
        }
        .nav-desktop a:hover { color: var(--text-white); background: rgba(255,255,255,0.06); }
        .nav-desktop a.active { color: var(--text-white); background: rgba(201, 168, 76, 0.15); }
        .nav-desktop a.active::after { content: ''; position: absolute; bottom: 2px; left: 50%; transform: translateX(-50%); width: 20px; height: 3px; background: var(--secondary); border-radius: 4px; }
        .nav-cta { background: var(--secondary) !important; color: var(--primary-dark) !important; font-weight: 700 !important; padding: 10px 24px !important; border-radius: var(--radius-sm) !important; }
        .nav-cta:hover { background: var(--secondary-light) !important; color: var(--primary-dark) !important; transform: translateY(-1px); }
        .nav-toggle { display: none; color: var(--text-white); font-size: 1.6rem; padding: 4px; background: none; border: none; }

        /* ===== Mobile Bottom Tab ===== */
        .mobile-bottom-tab {
            display: none; position: fixed; bottom: 0; left: 0; right: 0; z-index: 999;
            background: rgba(11, 19, 46, 0.96); backdrop-filter: blur(16px); -webkit-backdrop-filter: blur(16px);
            border-top: 1px solid rgba(255,255,255,0.06); padding: 6px 0 env(safe-area-inset-bottom, 6px) 0;
            justify-content: space-around; align-items: center;
        }
        .mobile-bottom-tab a {
            display: flex; flex-direction: column; align-items: center; gap: 2px; padding: 6px 12px;
            color: rgba(255,255,255,0.5); font-size: 0.7rem; font-weight: 500; transition: var(--transition); border-radius: var(--radius-sm);
        }
        .mobile-bottom-tab a i { font-size: 1.3rem; }
        .mobile-bottom-tab a:hover, .mobile-bottom-tab a.active { color: var(--secondary); background: rgba(201, 168, 76, 0.08); }
        .mobile-bottom-tab a.active { color: var(--secondary); }

        /* ===== Hero ===== */
        .hero {
            position: relative; min-height: 86vh; display: flex; align-items: center; justify-content: center;
            background: var(--bg-dark); overflow: hidden; padding: 120px 0 80px;
        }
        .hero-bg {
            position: absolute; inset: 0; background: url('/assets/images/backpic/back-1.png') center center / cover no-repeat;
            opacity: 0.35; 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: linear-gradient(145deg, rgba(11,19,46,0.88) 0%, rgba(15,31,92,0.72) 50%, rgba(11,19,46,0.90) 100%);
        }
        .hero-content { position: relative; z-index: 2; text-align: center; max-width: 820px; padding: 0 24px; }
        .hero-badge { display: inline-flex; align-items: center; gap: 8px; padding: 6px 20px; border-radius: 50px; background: rgba(201,168,76,0.18); color: var(--text-gold); font-size: 0.9rem; font-weight: 600; margin-bottom: 24px; backdrop-filter: blur(4px); border: 1px solid rgba(201,168,76,0.15); }
        .hero h1 { color: var(--text-white); font-weight: 900; letter-spacing: -1px; margin-bottom: 20px; }
        .hero h1 span { color: var(--text-gold); }
        .hero p { color: rgba(255,255,255,0.7); font-size: 1.2rem; max-width: 600px; margin: 0 auto 36px; line-height: 1.8; }
        .hero-actions { display: flex; flex-wrap: wrap; justify-content: center; gap: 16px; }
        .hero-stats { display: flex; justify-content: center; gap: 48px; margin-top: 56px; flex-wrap: wrap; }
        .hero-stat { text-align: center; }
        .hero-stat-number { font-size: 2.2rem; font-weight: 900; color: var(--text-white); letter-spacing: -0.5px; }
        .hero-stat-number span { color: var(--text-gold); }
        .hero-stat-label { color: rgba(255,255,255,0.55); font-size: 0.9rem; font-weight: 500; margin-top: 4px; }

        /* ===== Features / Intro ===== */
        .features { background: var(--bg-light); }
        .features-grid { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 28px; }
        .feature-card {
            background: var(--bg-white); border-radius: var(--radius-md); padding: 36px 28px;
            box-shadow: var(--shadow-sm); border: 1px solid var(--border-light); transition: var(--transition); text-align: center;
        }
        .feature-card:hover { box-shadow: var(--shadow-md); transform: translateY(-6px); border-color: var(--border); }
        .feature-icon { width: 64px; height: 64px; border-radius: 16px; background: rgba(201,168,76,0.10); display: flex; align-items: center; justify-content: center; margin: 0 auto 20px; font-size: 1.8rem; color: var(--secondary); transition: var(--transition); }
        .feature-card:hover .feature-icon { background: var(--secondary); color: var(--text-white); }
        .feature-card h3 { font-size: 1.2rem; margin-bottom: 10px; }
        .feature-card p { color: var(--text-muted); font-size: 0.95rem; }

        /* ===== Category Section ===== */
        .category-section { background: var(--bg-white); }
        .category-card {
            position: relative; border-radius: var(--radius-md); overflow: hidden; min-height: 280px;
            display: flex; align-items: flex-end; background: var(--bg-dark);
        }
        .category-card img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; opacity: 0.5; transition: var(--transition); }
        .category-card:hover img { opacity: 0.35; transform: scale(1.06); }
        .category-card-overlay {
            position: absolute; inset: 0;
            background: linear-gradient(0deg, rgba(11,19,46,0.85) 0%, rgba(11,19,46,0.20) 60%, transparent 100%);
        }
        .category-card-body { position: relative; z-index: 2; padding: 32px 28px; width: 100%; }
        .category-card-body h3 { color: var(--text-white); font-size: 1.5rem; font-weight: 800; margin-bottom: 4px; }
        .category-card-body p { color: rgba(255,255,255,0.65); font-size: 0.95rem; margin-bottom: 12px; }
        .category-card-body .btn { background: rgba(255,255,255,0.12); color: var(--text-white); border: 1px solid rgba(255,255,255,0.20); padding: 8px 20px; font-size: 0.9rem; border-radius: var(--radius-sm); }
        .category-card-body .btn:hover { background: var(--secondary); border-color: var(--secondary); color: var(--primary-dark); }

        /* ===== Latest Posts (CMS) ===== */
        .latest-posts { background: var(--bg-light); }
        .post-card { display: flex; flex-direction: column; background: var(--bg-white); border-radius: var(--radius-md); overflow: hidden; box-shadow: var(--shadow-sm); border: 1px solid var(--border-light); transition: var(--transition); }
        .post-card:hover { box-shadow: var(--shadow-md); transform: translateY(-4px); border-color: var(--border); }
        .post-card-img { width: 100%; aspect-ratio: 16/9; object-fit: cover; }
        .post-card-body { padding: 20px 24px 24px; flex: 1; display: flex; flex-direction: column; }
        .post-card-body .badge { align-self: flex-start; margin-bottom: 10px; }
        .post-card-body h3 { font-size: 1.1rem; font-weight: 700; margin-bottom: 8px; line-height: 1.4; }
        .post-card-body h3 a { color: var(--text-dark); }
        .post-card-body h3 a:hover { color: var(--primary); }
        .post-card-body p { color: var(--text-muted); font-size: 0.9rem; flex: 1; margin-bottom: 12px; }
        .post-card-body .card-meta { margin-top: auto; }
        .post-empty { text-align: center; padding: 60px 24px; color: var(--text-muted); font-size: 1.1rem; grid-column: 1 / -1; }
        .post-empty i { font-size: 3rem; color: var(--border); margin-bottom: 16px; display: block; }

        /* ===== Process / Steps ===== */
        .process { background: var(--bg-dark); position: relative; overflow: hidden; }
        .process::before { content: ''; position: absolute; inset: 0; background: url('/assets/images/backpic/back-2.png') center center / cover no-repeat; opacity: 0.08; }
        .process .container { position: relative; z-index: 2; }
        .process .section-title h2 { color: var(--text-white); }
        .process .section-title p { color: rgba(255,255,255,0.6); }
        .process .section-title h2::after { background: var(--secondary); }
        .steps-grid { display: grid; grid-template-columns: 1fr 1fr 1fr 1fr; gap: 24px; }
        .step-card { text-align: center; padding: 32px 20px; background: rgba(255,255,255,0.04); border-radius: var(--radius-md); border: 1px solid rgba(255,255,255,0.06); transition: var(--transition); }
        .step-card:hover { background: rgba(255,255,255,0.08); border-color: rgba(201,168,76,0.20); transform: translateY(-4px); }
        .step-number { width: 52px; height: 52px; border-radius: 50%; background: var(--secondary); color: var(--primary-dark); font-weight: 900; font-size: 1.3rem; display: flex; align-items: center; justify-content: center; margin: 0 auto 16px; }
        .step-card h4 { color: var(--text-white); font-size: 1.1rem; margin-bottom: 8px; }
        .step-card p { color: rgba(255,255,255,0.55); font-size: 0.9rem; margin-bottom: 0; }

        /* ===== FAQ ===== */
        .faq { background: var(--bg-white); }
        .faq-list { max-width: 780px; margin: 0 auto; display: flex; flex-direction: column; gap: 12px; }
        .faq-item { border: 1px solid var(--border); border-radius: var(--radius-md); overflow: hidden; transition: var(--transition); }
        .faq-item:hover { border-color: var(--secondary); box-shadow: var(--shadow-sm); }
        .faq-question { width: 100%; padding: 20px 28px; display: flex; justify-content: space-between; align-items: center; font-weight: 600; font-size: 1.05rem; color: var(--text-dark); background: var(--bg-white); transition: var(--transition); text-align: left; }
        .faq-question:hover { background: var(--bg-light); }
        .faq-question i { color: var(--secondary); font-size: 1.1rem; transition: var(--transition); }
        .faq-item.active .faq-question i { transform: rotate(180deg); }
        .faq-answer { padding: 0 28px; max-height: 0; overflow: hidden; transition: max-height 0.4s ease, padding 0.3s ease; }
        .faq-item.active .faq-answer { max-height: 300px; padding: 0 28px 20px; }
        .faq-answer p { color: var(--text-muted); font-size: 0.95rem; margin-bottom: 0; line-height: 1.7; }

        /* ===== CTA ===== */
        .cta-section {
            background: var(--bg-dark); 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: 0.10; }
        .cta-section .container { position: relative; z-index: 2; text-align: center; padding: 80px 24px; }
        .cta-section h2 { color: var(--text-white); font-size: clamp(1.8rem, 3vw, 2.6rem); font-weight: 800; margin-bottom: 16px; }
        .cta-section p { color: rgba(255,255,255,0.65); font-size: 1.1rem; max-width: 560px; margin: 0 auto 32px; }
        .cta-section .btn { font-size: 1.1rem; padding: 16px 40px; }

        /* ===== Footer ===== */
        .footer { background: var(--bg-dark); border-top: 1px solid rgba(255,255,255,0.05); padding: 48px 0 32px; }
        .footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 40px; margin-bottom: 40px; }
        .footer-brand .logo { font-size: 1.3rem; margin-bottom: 12px; }
        .footer-brand p { color: rgba(255,255,255,0.5); font-size: 0.9rem; max-width: 320px; line-height: 1.7; }
        .footer h4 { color: var(--text-white); font-size: 1rem; font-weight: 700; margin-bottom: 16px; }
        .footer a { color: rgba(255,255,255,0.5); font-size: 0.9rem; display: block; padding: 4px 0; transition: var(--transition); }
        .footer a:hover { color: var(--secondary); padding-left: 4px; }
        .footer-bottom { border-top: 1px solid rgba(255,255,255,0.05); padding-top: 24px; display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 12px; }
        .footer-bottom p { color: rgba(255,255,255,0.35); font-size: 0.85rem; margin-bottom: 0; }
        .footer-bottom-links { display: flex; gap: 20px; }
        .footer-bottom-links a { color: rgba(255,255,255,0.35); font-size: 0.85rem; padding: 0; }
        .footer-bottom-links a:hover { color: var(--secondary); padding: 0; }

        /* ===== Mobile Nav Drawer ===== */
        .mobile-drawer {
            display: none; position: fixed; top: 0; left: 0; right: 0; bottom: 0; z-index: 998;
            background: rgba(11,19,46,0.98); backdrop-filter: blur(20px); -webkit-backdrop-filter: blur(20px);
            flex-direction: column; align-items: center; justify-content: center; gap: 8px; padding: 80px 24px;
        }
        .mobile-drawer.open { display: flex; }
        .mobile-drawer a { color: rgba(255,255,255,0.7); font-size: 1.4rem; font-weight: 600; padding: 14px 28px; border-radius: var(--radius-sm); transition: var(--transition); width: 100%; max-width: 300px; text-align: center; }
        .mobile-drawer a:hover { color: var(--text-white); background: rgba(255,255,255,0.06); }
        .mobile-drawer a.active { color: var(--secondary); background: rgba(201,168,76,0.10); }
        .mobile-drawer-close { position: absolute; top: 20px; right: 24px; color: var(--text-white); font-size: 2rem; background: none; border: none; padding: 8px; }

        /* ===== Responsive ===== */
        @media (max-width: 1024px) {
            .grid-4 { grid-template-columns: 1fr 1fr; }
            .steps-grid { grid-template-columns: 1fr 1fr; }
            .footer-grid { grid-template-columns: 1fr 1fr; }
            .features-grid { grid-template-columns: 1fr 1fr; }
        }

        @media (max-width: 768px) {
            .nav-desktop { display: none; }
            .nav-toggle { display: block; }
            .mobile-bottom-tab { display: flex; }
            .header .container { height: 64px; }
            .hero { min-height: 70vh; padding: 100px 0 60px; }
            .hero h1 { font-size: clamp(1.8rem, 6vw, 2.8rem); }
            .hero p { font-size: 1rem; }
            .hero-stats { gap: 24px; margin-top: 36px; }
            .hero-stat-number { font-size: 1.6rem; }
            .section { padding: 56px 0; }
            .section-title { margin-bottom: 32px; }
            .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; gap: 20px; }
            .features-grid { grid-template-columns: 1fr; }
            .steps-grid { grid-template-columns: 1fr 1fr; gap: 16px; }
            .footer-grid { grid-template-columns: 1fr; gap: 28px; }
            .footer-bottom { flex-direction: column; text-align: center; }
            .category-card { min-height: 220px; }
            .process .container { padding: 0 16px; }
            body { padding-bottom: 64px; }
        }

        @media (max-width: 520px) {
            .container { padding: 0 16px; }
            .hero-actions { flex-direction: column; align-items: center; }
            .hero-actions .btn { width: 100%; max-width: 280px; justify-content: center; }
            .steps-grid { grid-template-columns: 1fr; }
            .hero-stats { flex-direction: column; gap: 16px; align-items: center; }
            .faq-question { padding: 16px 18px; font-size: 0.95rem; }
            .faq-answer { padding: 0 18px; }
            .faq-item.active .faq-answer { padding: 0 18px 16px; }
            .card-body { padding: 18px; }
            .logo { font-size: 1.15rem; }
            .logo i { font-size: 1.3rem; }
        }

        /* ===== Focus Accessibility ===== */
        a:focus-visible, button:focus-visible, input:focus-visible { outline: 3px solid var(--secondary); outline-offset: 2px; border-radius: 4px; }
        .btn:focus-visible { outline: 3px solid var(--secondary); outline-offset: 2px; }

        /* ===== Skip Link ===== */
        .skip-link { position: absolute; top: -100px; left: 0; background: var(--secondary); color: var(--primary-dark); padding: 8px 16px; z-index: 9999; font-weight: 600; border-radius: 0 0 8px 0; }
        .skip-link:focus { top: 0; }

/* roulang page: article */
/* ===== 设计变量 ===== */
        :root {
            --primary: #c0392b;
            --primary-dark: #a93226;
            --primary-light: #e74c3c;
            --secondary: #2c3e50;
            --secondary-light: #34495e;
            --accent: #f39c12;
            --accent-light: #f1c40f;
            --bg-body: #f8f9fa;
            --bg-card: #ffffff;
            --bg-dark: #1a1a2e;
            --bg-hero: #0f0f1a;
            --text-primary: #1a1a2e;
            --text-secondary: #4a4a6a;
            --text-light: #7f8c8d;
            --text-white: #ffffff;
            --border-color: #e8e8ec;
            --border-light: #f0f0f5;
            --radius-sm: 6px;
            --radius-md: 12px;
            --radius-lg: 20px;
            --shadow-sm: 0 2px 8px rgba(0,0,0,0.06);
            --shadow-md: 0 8px 24px rgba(0,0,0,0.10);
            --shadow-lg: 0 20px 48px rgba(0,0,0,0.15);
            --shadow-hover: 0 16px 40px rgba(192,57,43,0.15);
            --transition: all 0.3s cubic-bezier(0.4,0,0.2,1);
            --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, 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-text-size-adjust: 100%; }
        body {
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.7;
            color: var(--text-primary);
            background: var(--bg-body);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            padding-top: var(--header-height);
        }
        img { max-width: 100%; height: auto; display: block; border-radius: var(--radius-sm); }
        a { color: var(--primary); text-decoration: none; transition: var(--transition); }
        a:hover { color: var(--primary-dark); }
        a:focus-visible { outline: 2px solid var(--primary); outline-offset: 2px; border-radius: 2px; }
        button { cursor: pointer; font-family: inherit; border: none; background: none; transition: var(--transition); }
        button:focus-visible { outline: 2px solid var(--primary); outline-offset: 2px; }
        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: 2.4rem; }
        h2 { font-size: 2.0rem; }
        h3 { font-size: 1.5rem; }
        h4 { font-size: 1.2rem; }
        p { margin-bottom: 1rem; color: var(--text-secondary); }
        .container {
            width: 100%;
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 24px;
        }

        /* ===== Header / Nav ===== */
        .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(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid rgba(255,255,255,0.06);
            box-shadow: 0 2px 20px rgba(0,0,0,0.3);
        }
        .header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
        }
        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.5rem;
            font-weight: 800;
            color: var(--text-white);
            letter-spacing: -0.5px;
        }
        .logo i { color: var(--accent); font-size: 1.6rem; }
        .logo span { color: var(--primary-light); }
        .logo:hover { color: var(--text-white); opacity: 0.9; }

        .nav-desktop { display: flex; align-items: center; gap: 8px; }
        .nav-desktop a {
            padding: 8px 18px;
            border-radius: var(--radius-sm);
            font-size: 0.95rem;
            font-weight: 500;
            color: rgba(255,255,255,0.75);
            transition: var(--transition);
            position: relative;
        }
        .nav-desktop a:hover { color: var(--text-white); background: rgba(255,255,255,0.08); }
        .nav-desktop a.active {
            color: var(--text-white);
            background: rgba(192,57,43,0.25);
        }
        .nav-desktop a.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 50%;
            transform: translateX(-50%);
            width: 20px;
            height: 3px;
            background: var(--primary-light);
            border-radius: 2px;
        }
        .nav-desktop a.nav-cta {
            background: var(--primary);
            color: var(--text-white);
            font-weight: 600;
            padding: 8px 22px;
            border-radius: var(--radius-sm);
            margin-left: 12px;
        }
        .nav-desktop a.nav-cta:hover { background: var(--primary-dark); transform: translateY(-1px); box-shadow: 0 4px 16px rgba(192,57,43,0.35); }

        .nav-toggle { display: none; color: var(--text-white); font-size: 1.5rem; padding: 8px; }

        /* ===== Mobile Bottom Tab ===== */
        .mobile-tab-bar {
            display: none;
            position: fixed;
            bottom: 0;
            left: 0;
            right: 0;
            z-index: 1001;
            background: rgba(15,15,26,0.96);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-top: 1px solid rgba(255,255,255,0.08);
            padding: 6px 0 env(safe-area-inset-bottom, 6px);
            box-shadow: 0 -4px 20px rgba(0,0,0,0.3);
        }
        .mobile-tab-bar .tab-items { display: flex; justify-content: space-around; align-items: center; }
        .mobile-tab-bar .tab-item {
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 2px;
            padding: 6px 12px;
            font-size: 0.7rem;
            color: rgba(255,255,255,0.5);
            transition: var(--transition);
            border-radius: var(--radius-sm);
        }
        .mobile-tab-bar .tab-item i { font-size: 1.3rem; }
        .mobile-tab-bar .tab-item.active { color: var(--primary-light); }
        .mobile-tab-bar .tab-item.active i { color: var(--primary-light); }
        .mobile-tab-bar .tab-item:hover { color: rgba(255,255,255,0.8); }

        /* ===== Hero / Banner ===== */
        .page-banner {
            position: relative;
            padding: 80px 0 64px;
            background: var(--bg-hero);
            overflow: hidden;
            min-height: 260px;
            display: flex;
            align-items: center;
        }
        .page-banner::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-1.png') center center / cover no-repeat;
            opacity: 0.25;
            z-index: 0;
        }
        .page-banner::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(15,15,26,0.88) 0%, rgba(26,26,46,0.70) 100%);
            z-index: 1;
        }
        .page-banner .container { position: relative; z-index: 2; }
        .page-banner h1 {
            color: var(--text-white);
            font-size: 2.2rem;
            max-width: 800px;
            margin-bottom: 12px;
        }
        .page-banner .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 0.9rem;
            color: rgba(255,255,255,0.6);
            flex-wrap: wrap;
        }
        .page-banner .breadcrumb a { color: rgba(255,255,255,0.7); }
        .page-banner .breadcrumb a:hover { color: var(--text-white); }
        .page-banner .breadcrumb .sep { color: rgba(255,255,255,0.3); }

        /* ===== Main Article ===== */
        .article-main { padding: 60px 0 80px; }
        .article-layout {
            display: grid;
            grid-template-columns: 1fr 320px;
            gap: 48px;
        }
        .article-body { background: var(--bg-card); border-radius: var(--radius-md); padding: 40px; box-shadow: var(--shadow-sm); border: 1px solid var(--border-light); }
        .article-meta {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 16px;
            padding-bottom: 20px;
            margin-bottom: 28px;
            border-bottom: 1px solid var(--border-light);
        }
        .article-meta .badge {
            display: inline-block;
            padding: 4px 14px;
            border-radius: 20px;
            font-size: 0.8rem;
            font-weight: 600;
            background: rgba(192,57,43,0.10);
            color: var(--primary);
            border: 1px solid rgba(192,57,43,0.15);
        }
        .article-meta .date { font-size: 0.9rem; color: var(--text-light); display: flex; align-items: center; gap: 6px; }
        .article-meta .views { font-size: 0.9rem; color: var(--text-light); display: flex; align-items: center; gap: 6px; margin-left: auto; }
        .article-featured-image {
            width: 100%;
            border-radius: var(--radius-md);
            margin-bottom: 32px;
            max-height: 480px;
            object-fit: cover;
            box-shadow: var(--shadow-sm);
        }
        .article-content { font-size: 1.05rem; line-height: 1.85; color: var(--text-secondary); }
        .article-content p { margin-bottom: 1.2rem; }
        .article-content h2, .article-content h3 { margin-top: 2rem; margin-bottom: 0.8rem; color: var(--text-primary); }
        .article-content ul, .article-content ol { margin-bottom: 1.2rem; padding-left: 1.5rem; }
        .article-content ul li { list-style: disc; margin-bottom: 0.4rem; }
        .article-content ol li { list-style: decimal; margin-bottom: 0.4rem; }
        .article-content img { border-radius: var(--radius-md); margin: 1.5rem 0; box-shadow: var(--shadow-sm); }
        .article-content blockquote {
            border-left: 4px solid var(--primary);
            padding: 16px 20px;
            margin: 1.5rem 0;
            background: rgba(192,57,43,0.04);
            border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
            font-style: italic;
            color: var(--text-secondary);
        }
        .article-content a { color: var(--primary); font-weight: 500; text-decoration: underline; text-underline-offset: 2px; }
        .article-content a:hover { color: var(--primary-dark); }

        .article-not-found {
            text-align: center;
            padding: 80px 20px;
            background: var(--bg-card);
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-sm);
        }
        .article-not-found i { font-size: 3rem; color: var(--text-light); margin-bottom: 20px; }
        .article-not-found h2 { font-size: 1.8rem; margin-bottom: 12px; }
        .article-not-found p { color: var(--text-light); margin-bottom: 24px; }
        .article-not-found .btn { display: inline-block; }

        /* ===== Sidebar ===== */
        .article-sidebar { display: flex; flex-direction: column; gap: 32px; }
        .sidebar-card {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            padding: 28px;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-light);
        }
        .sidebar-card h3 {
            font-size: 1.1rem;
            margin-bottom: 16px;
            padding-bottom: 12px;
            border-bottom: 2px solid var(--border-light);
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .sidebar-card h3 i { color: var(--primary); }
        .sidebar-related-list { display: flex; flex-direction: column; gap: 14px; }
        .sidebar-related-item {
            display: flex;
            gap: 14px;
            align-items: flex-start;
            padding: 10px;
            border-radius: var(--radius-sm);
            transition: var(--transition);
        }
        .sidebar-related-item:hover { background: rgba(192,57,43,0.04); }
        .sidebar-related-item img {
            width: 70px;
            height: 70px;
            object-fit: cover;
            border-radius: var(--radius-sm);
            flex-shrink: 0;
        }
        .sidebar-related-item .info { flex: 1; }
        .sidebar-related-item .info h4 { font-size: 0.9rem; font-weight: 600; margin-bottom: 4px; line-height: 1.4; }
        .sidebar-related-item .info h4 a { color: var(--text-primary); }
        .sidebar-related-item .info h4 a:hover { color: var(--primary); }
        .sidebar-related-item .info .date { font-size: 0.8rem; color: var(--text-light); }
        .sidebar-tags { display: flex; flex-wrap: wrap; gap: 8px; }
        .sidebar-tags a {
            display: inline-block;
            padding: 4px 14px;
            border-radius: 20px;
            font-size: 0.8rem;
            font-weight: 500;
            background: rgba(44,62,80,0.06);
            color: var(--text-secondary);
            border: 1px solid var(--border-color);
            transition: var(--transition);
        }
        .sidebar-tags a:hover { background: var(--primary); color: var(--text-white); border-color: var(--primary); }

        .sidebar-cta {
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
            color: var(--text-white);
            border: none;
            text-align: center;
        }
        .sidebar-cta h3 { color: var(--text-white); border-bottom-color: rgba(255,255,255,0.15); }
        .sidebar-cta h3 i { color: var(--accent); }
        .sidebar-cta p { color: rgba(255,255,255,0.8); font-size: 0.95rem; margin-bottom: 20px; }
        .sidebar-cta .btn {
            background: var(--text-white);
            color: var(--primary);
            font-weight: 700;
            padding: 12px 28px;
            border-radius: var(--radius-sm);
            display: inline-block;
        }
        .sidebar-cta .btn:hover { background: var(--accent); color: var(--text-white); transform: translateY(-2px); box-shadow: 0 8px 24px rgba(0,0,0,0.2); }

        /* ===== Buttons ===== */
        .btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 28px;
            border-radius: var(--radius-sm);
            font-weight: 600;
            font-size: 0.95rem;
            transition: var(--transition);
            border: 2px solid transparent;
        }
        .btn-primary { background: var(--primary); color: var(--text-white); }
        .btn-primary:hover { background: var(--primary-dark); color: var(--text-white); transform: translateY(-2px); box-shadow: 0 8px 24px rgba(192,57,43,0.3); }
        .btn-outline { background: transparent; color: var(--primary); border-color: var(--primary); }
        .btn-outline:hover { background: var(--primary); color: var(--text-white); transform: translateY(-2px); }
        .btn-sm { padding: 8px 18px; font-size: 0.85rem; }

        /* ===== Footer ===== */
        .footer {
            background: var(--bg-dark);
            color: rgba(255,255,255,0.7);
            padding: 60px 0 30px;
            border-top: 1px solid rgba(255,255,255,0.06);
        }
        .footer .logo { color: var(--text-white); margin-bottom: 16px; }
        .footer-grid { display: grid; grid-template-columns: 1.5fr 1fr 1fr 1fr; gap: 40px; margin-bottom: 40px; }
        .footer-brand p { font-size: 0.9rem; line-height: 1.7; color: rgba(255,255,255,0.55); max-width: 360px; }
        .footer h4 { font-size: 1rem; font-weight: 700; color: var(--text-white); margin-bottom: 16px; }
        .footer a { display: block; color: rgba(255,255,255,0.55); font-size: 0.9rem; padding: 4px 0; transition: var(--transition); }
        .footer a:hover { color: var(--primary-light); padding-left: 4px; }
        .footer-bottom {
            border-top: 1px solid rgba(255,255,255,0.06);
            padding-top: 24px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 16px;
            font-size: 0.85rem;
            color: rgba(255,255,255,0.4);
        }
        .footer-bottom-links { display: flex; gap: 20px; }
        .footer-bottom-links a { display: inline; padding: 0; color: rgba(255,255,255,0.4); font-size: 0.85rem; }
        .footer-bottom-links a:hover { color: var(--primary-light); padding-left: 0; }

        /* ===== Responsive ===== */
        @media (max-width: 1024px) {
            .article-layout { grid-template-columns: 1fr; }
            .article-sidebar { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }
            .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
        }
        @media (max-width: 768px) {
            .nav-desktop { display: none; }
            .nav-toggle { display: block; }
            .mobile-tab-bar { display: block; }
            body { padding-bottom: 64px; }
            .page-banner { padding: 60px 0 48px; min-height: 200px; }
            .page-banner h1 { font-size: 1.6rem; }
            .article-body { padding: 24px; }
            .article-meta .views { margin-left: 0; }
            .article-sidebar { grid-template-columns: 1fr; }
            .footer-grid { grid-template-columns: 1fr; gap: 24px; }
            .footer-bottom { flex-direction: column; text-align: center; }
            .footer-bottom-links { justify-content: center; }
            h1 { font-size: 1.8rem; }
            h2 { font-size: 1.5rem; }
            h3 { font-size: 1.2rem; }
        }
        @media (max-width: 520px) {
            .container { padding: 0 16px; }
            .page-banner h1 { font-size: 1.3rem; }
            .article-body { padding: 16px; }
            .article-meta { gap: 8px; }
            .article-content { font-size: 0.95rem; }
            .logo { font-size: 1.2rem; }
            .logo i { font-size: 1.2rem; }
            .sidebar-related-item img { width: 56px; height: 56px; }
        }

        /* ===== Mobile Nav Drawer ===== */
        .mobile-drawer {
            display: none;
            position: fixed;
            top: var(--header-height);
            left: 0;
            right: 0;
            bottom: 0;
            background: rgba(15,15,26,0.98);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            z-index: 999;
            padding: 32px 24px;
            flex-direction: column;
            gap: 12px;
            overflow-y: auto;
        }
        .mobile-drawer.open { display: flex; }
        .mobile-drawer a {
            display: block;
            padding: 14px 20px;
            border-radius: var(--radius-sm);
            font-size: 1.1rem;
            font-weight: 500;
            color: rgba(255,255,255,0.7);
            border-bottom: 1px solid rgba(255,255,255,0.04);
        }
        .mobile-drawer a:hover { background: rgba(255,255,255,0.06); color: var(--text-white); }
        .mobile-drawer a.active { color: var(--primary-light); background: rgba(192,57,43,0.12); }
        .mobile-drawer a.nav-cta { background: var(--primary); color: var(--text-white); text-align: center; margin-top: 16px; border: none; }

        /* ===== Skeleton / Loading ===== */
        @keyframes shimmer { 0% { background-position: -200% 0; } 100% { background-position: 200% 0; } }
        .skeleton { background: linear-gradient(90deg, #e8e8ec 25%, #f0f0f5 50%, #e8e8ec 75%); background-size: 200% 100%; animation: shimmer 1.5s infinite; border-radius: var(--radius-sm); }

/* roulang page: category1 */
/* ===== 设计变量 ===== */
        :root {
            --primary: #c62828;
            --primary-dark: #8e0000;
            --primary-light: #ff5f52;
            --primary-bg: #fff5f5;
            --secondary: #1a1a2e;
            --secondary-light: #2d2d44;
            --accent: #f9a825;
            --accent-light: #ffd54f;
            --bg: #fafafa;
            --bg-alt: #f0f0f5;
            --bg-card: #ffffff;
            --text: #1a1a2e;
            --text-light: #5a5a72;
            --text-muted: #8e8ea0;
            --border: #e0e0e8;
            --radius: 12px;
            --radius-sm: 8px;
            --radius-lg: 20px;
            --shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
            --shadow-hover: 0 12px 40px rgba(198, 40, 40, 0.15);
            --shadow-lg: 0 20px 60px rgba(0, 0, 0, 0.12);
            --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --font: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif;
            --max-width: 1200px;
            --header-height: 72px;
            --footer-bg: #0d0d1a;
            --footer-text: #c0c0d0;
        }

        /* ===== 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);
            font-size: 16px;
            line-height: 1.7;
            color: var(--text);
            background: var(--bg);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            padding-top: var(--header-height);
        }

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

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

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

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

        button {
            cursor: pointer;
        }

        ul,
        ol {
            list-style: none;
        }

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

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

        @media (max-width: 768px) {
            .container {
                padding: 0 16px;
            }
            body {
                padding-top: 64px;
            }
        }

        /* ===== Header / Nav ===== */
        .header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            height: var(--header-height);
            background: rgba(255, 255, 255, 0.96);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid var(--border);
            transition: var(--transition);
        }

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

        .logo {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 1.6rem;
            font-weight: 800;
            color: var(--text);
            letter-spacing: -0.5px;
        }

        .logo i {
            color: var(--primary);
            font-size: 1.5rem;
        }

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

        .logo:hover {
            color: var(--text);
            opacity: 0.9;
        }

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

        .nav-desktop a {
            padding: 8px 18px;
            border-radius: var(--radius-sm);
            font-size: 0.95rem;
            font-weight: 500;
            color: var(--text-light);
            transition: var(--transition);
            position: relative;
        }

        .nav-desktop a:hover {
            color: var(--primary);
            background: var(--primary-bg);
        }

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

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

        .nav-desktop .nav-cta {
            background: var(--primary);
            color: #fff;
            padding: 10px 22px;
            border-radius: 50px;
            font-weight: 600;
            display: flex;
            align-items: center;
            gap: 8px;
            margin-left: 12px;
        }

        .nav-desktop .nav-cta:hover {
            background: var(--primary-dark);
            color: #fff;
            transform: translateY(-1px);
            box-shadow: 0 6px 20px rgba(198, 40, 40, 0.35);
        }

        .nav-desktop .nav-cta i {
            font-size: 0.9rem;
        }

        .nav-toggle {
            display: none;
            font-size: 1.5rem;
            color: var(--text);
            padding: 8px;
            border-radius: var(--radius-sm);
            transition: var(--transition);
        }

        .nav-toggle:hover {
            background: var(--bg-alt);
        }

        /* ===== Mobile Bottom Tab ===== */
        .mobile-tab-bar {
            display: none;
            position: fixed;
            bottom: 0;
            left: 0;
            right: 0;
            z-index: 999;
            background: rgba(255, 255, 255, 0.96);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-top: 1px solid var(--border);
            padding: 6px 0 env(safe-area-inset-bottom, 6px) 0;
            justify-content: space-around;
            align-items: center;
            box-shadow: 0 -4px 20px rgba(0, 0, 0, 0.06);
        }

        .mobile-tab-bar a {
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 2px;
            padding: 4px 12px;
            font-size: 0.7rem;
            font-weight: 500;
            color: var(--text-muted);
            transition: var(--transition);
            border-radius: var(--radius-sm);
        }

        .mobile-tab-bar a i {
            font-size: 1.3rem;
            transition: var(--transition);
        }

        .mobile-tab-bar a:hover,
        .mobile-tab-bar a.active {
            color: var(--primary);
        }

        .mobile-tab-bar a.active i {
            transform: scale(1.1);
        }

        .mobile-tab-bar .tab-cta {
            background: var(--primary);
            color: #fff;
            padding: 6px 16px;
            border-radius: 50px;
        }

        .mobile-tab-bar .tab-cta i {
            color: #fff;
        }

        .mobile-tab-bar .tab-cta:hover {
            background: var(--primary-dark);
            color: #fff;
        }

        @media (max-width: 768px) {
            .nav-desktop {
                display: none;
            }
            .nav-toggle {
                display: block;
            }
            .mobile-tab-bar {
                display: flex;
            }
            body {
                padding-bottom: 68px;
            }
            .header .container {
                padding: 0 12px;
            }
            .logo {
                font-size: 1.3rem;
            }
            .logo i {
                font-size: 1.2rem;
            }
        }

        /* ===== Mobile Drawer ===== */
        .nav-drawer {
            position: fixed;
            top: var(--header-height);
            left: 0;
            right: 0;
            background: rgba(255, 255, 255, 0.98);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            padding: 20px 24px;
            border-bottom: 1px solid var(--border);
            transform: translateY(-110%);
            opacity: 0;
            transition: var(--transition);
            z-index: 900;
            box-shadow: var(--shadow-lg);
        }

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

        .nav-drawer a {
            display: block;
            padding: 12px 16px;
            border-radius: var(--radius-sm);
            font-size: 1.05rem;
            font-weight: 500;
            color: var(--text);
            transition: var(--transition);
        }

        .nav-drawer a:hover {
            background: var(--primary-bg);
            color: var(--primary);
        }

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

        .nav-drawer .nav-cta {
            background: var(--primary);
            color: #fff;
            text-align: center;
            margin-top: 8px;
            border-radius: 50px;
        }

        .nav-drawer .nav-cta:hover {
            background: var(--primary-dark);
            color: #fff;
        }

        /* ===== Hero / Banner ===== */
        .category-banner {
            position: relative;
            padding: 80px 0 60px;
            background: linear-gradient(135deg, var(--secondary) 0%, var(--secondary-light) 100%);
            overflow: hidden;
            min-height: 360px;
            display: flex;
            align-items: center;
        }

        .category-banner::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-1.png') center center / cover no-repeat;
            opacity: 0.2;
            mix-blend-mode: overlay;
        }

        .category-banner::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(90deg, rgba(26, 26, 46, 0.92) 0%, rgba(26, 26, 46, 0.6) 100%);
        }

        .category-banner .container {
            position: relative;
            z-index: 2;
            display: flex;
            flex-direction: column;
            align-items: flex-start;
            gap: 16px;
        }

        .category-banner .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 0.9rem;
            color: rgba(255, 255, 255, 0.7);
        }

        .category-banner .breadcrumb a {
            color: rgba(255, 255, 255, 0.8);
        }

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

        .category-banner .breadcrumb i {
            font-size: 0.7rem;
            color: rgba(255, 255, 255, 0.5);
        }

        .category-banner .banner-tag {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: rgba(249, 168, 37, 0.2);
            color: var(--accent-light);
            padding: 6px 16px;
            border-radius: 50px;
            font-size: 0.85rem;
            font-weight: 500;
            border: 1px solid rgba(249, 168, 37, 0.3);
        }

        .category-banner h1 {
            font-size: 3rem;
            font-weight: 800;
            color: #fff;
            letter-spacing: -1px;
            max-width: 700px;
        }

        .category-banner p {
            font-size: 1.15rem;
            color: rgba(255, 255, 255, 0.85);
            max-width: 600px;
            line-height: 1.8;
        }

        .banner-stats {
            display: flex;
            gap: 40px;
            margin-top: 12px;
            flex-wrap: wrap;
        }

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

        .banner-stats .stat-item .num {
            font-size: 2rem;
            font-weight: 800;
            color: var(--accent-light);
            line-height: 1.2;
        }

        .banner-stats .stat-item .label {
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.7);
        }

        @media (max-width: 768px) {
            .category-banner {
                padding: 60px 0 40px;
                min-height: 280px;
            }
            .category-banner h1 {
                font-size: 2rem;
            }
            .category-banner p {
                font-size: 1rem;
            }
            .banner-stats {
                gap: 24px;
            }
            .banner-stats .stat-item .num {
                font-size: 1.5rem;
            }
        }

        @media (max-width: 520px) {
            .category-banner h1 {
                font-size: 1.6rem;
            }
            .banner-stats {
                gap: 16px;
            }
        }

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

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

        .section-sm {
            padding: 48px 0;
        }

        .section-header {
            text-align: center;
            margin-bottom: 48px;
        }

        .section-header h2 {
            font-size: 2.2rem;
            font-weight: 800;
            color: var(--text);
            letter-spacing: -0.5px;
        }

        .section-header p {
            font-size: 1.1rem;
            color: var(--text-light);
            max-width: 600px;
            margin: 12px auto 0;
        }

        .section-header .subtitle-badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: var(--primary-bg);
            color: var(--primary);
            padding: 4px 16px;
            border-radius: 50px;
            font-size: 0.85rem;
            font-weight: 600;
            margin-bottom: 12px;
        }

        @media (max-width: 768px) {
            .section {
                padding: 48px 0;
            }
            .section-header h2 {
                font-size: 1.6rem;
            }
            .section-header p {
                font-size: 0.95rem;
            }
            .section-header {
                margin-bottom: 32px;
            }
        }

        /* ===== 分类卡片网格 ===== */
        .category-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }

        .category-card {
            background: var(--bg-card);
            border-radius: var(--radius);
            overflow: hidden;
            box-shadow: var(--shadow);
            transition: var(--transition);
            border: 1px solid var(--border);
            display: flex;
            flex-direction: column;
        }

        .category-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-hover);
            border-color: var(--primary-light);
        }

        .category-card .card-img {
            position: relative;
            height: 200px;
            overflow: hidden;
        }

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

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

        .category-card .card-img .card-tag {
            position: absolute;
            top: 12px;
            left: 12px;
            background: var(--primary);
            color: #fff;
            padding: 4px 14px;
            border-radius: 50px;
            font-size: 0.8rem;
            font-weight: 600;
        }

        .category-card .card-body {
            padding: 24px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }

        .category-card .card-body h3 {
            font-size: 1.25rem;
            font-weight: 700;
            margin-bottom: 8px;
        }

        .category-card .card-body h3 a {
            color: var(--text);
        }

        .category-card .card-body h3 a:hover {
            color: var(--primary);
        }

        .category-card .card-body p {
            color: var(--text-light);
            font-size: 0.95rem;
            line-height: 1.7;
            flex: 1;
            margin-bottom: 16px;
        }

        .category-card .card-footer {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding-top: 12px;
            border-top: 1px solid var(--border);
        }

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

        .category-card .card-footer .btn-link {
            color: var(--primary);
            font-weight: 600;
            font-size: 0.9rem;
            display: flex;
            align-items: center;
            gap: 6px;
        }

        .category-card .card-footer .btn-link:hover {
            gap: 10px;
        }

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

        @media (max-width: 520px) {
            .category-grid {
                grid-template-columns: 1fr;
            }
            .category-card .card-img {
                height: 180px;
            }
        }

        /* ===== 赛事流程/时间线 ===== */
        .timeline-section {
            position: relative;
        }

        .timeline {
            display: flex;
            flex-direction: column;
            gap: 0;
            position: relative;
            padding-left: 40px;
        }

        .timeline::before {
            content: '';
            position: absolute;
            left: 14px;
            top: 8px;
            bottom: 8px;
            width: 3px;
            background: linear-gradient(to bottom, var(--primary), var(--accent));
            border-radius: 4px;
        }

        .timeline-item {
            position: relative;
            padding: 24px 24px 24px 40px;
            background: var(--bg-card);
            border-radius: var(--radius);
            border: 1px solid var(--border);
            margin-bottom: 20px;
            transition: var(--transition);
        }

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

        .timeline-item::before {
            content: '';
            position: absolute;
            left: -32px;
            top: 32px;
            width: 16px;
            height: 16px;
            background: var(--primary);
            border-radius: 50%;
            border: 4px solid #fff;
            box-shadow: 0 0 0 3px var(--primary);
        }

        .timeline-item .step {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: var(--primary-bg);
            color: var(--primary);
            padding: 2px 14px;
            border-radius: 50px;
            font-size: 0.8rem;
            font-weight: 600;
            margin-bottom: 8px;
        }

        .timeline-item h4 {
            font-size: 1.15rem;
            font-weight: 700;
            margin-bottom: 6px;
        }

        .timeline-item p {
            color: var(--text-light);
            font-size: 0.95rem;
            line-height: 1.7;
        }

        @media (max-width: 768px) {
            .timeline {
                padding-left: 24px;
            }
            .timeline-item {
                padding: 16px 16px 16px 24px;
            }
            .timeline-item::before {
                left: -20px;
                width: 12px;
                height: 12px;
            }
            .timeline::before {
                left: 8px;
            }
        }

        /* ===== 数据统计区块 ===== */
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }

        .stat-card {
            background: var(--bg-card);
            border-radius: var(--radius);
            padding: 32px 24px;
            text-align: center;
            border: 1px solid var(--border);
            transition: var(--transition);
        }

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

        .stat-card .stat-icon {
            font-size: 2.2rem;
            color: var(--primary);
            margin-bottom: 12px;
        }

        .stat-card .stat-number {
            font-size: 2.4rem;
            font-weight: 800;
            color: var(--text);
            line-height: 1.2;
        }

        .stat-card .stat-number .plus {
            color: var(--primary);
        }

        .stat-card .stat-label {
            font-size: 0.95rem;
            color: var(--text-light);
            margin-top: 6px;
        }

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

        @media (max-width: 520px) {
            .stats-grid {
                grid-template-columns: 1fr 1fr;
                gap: 12px;
            }
            .stat-card {
                padding: 20px 12px;
            }
            .stat-card .stat-number {
                font-size: 1.8rem;
            }
        }

        /* ===== FAQ ===== */
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

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

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

        .faq-item .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 18px 24px;
            font-size: 1rem;
            font-weight: 600;
            color: var(--text);
            cursor: pointer;
            transition: var(--transition);
            gap: 16px;
            width: 100%;
            text-align: left;
            background: none;
        }

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

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

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

        .faq-item .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease, padding 0.4s ease;
            padding: 0 24px;
        }

        .faq-item.active .faq-answer {
            max-height: 300px;
            padding: 0 24px 20px;
        }

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

        @media (max-width: 768px) {
            .faq-item .faq-question {
                padding: 14px 16px;
                font-size: 0.95rem;
            }
            .faq-item .faq-answer {
                padding: 0 16px;
            }
            .faq-item.active .faq-answer {
                padding: 0 16px 16px;
            }
        }

        /* ===== CTA ===== */
        .cta-section {
            background: linear-gradient(135deg, var(--secondary) 0%, var(--secondary-light) 100%);
            position: relative;
            overflow: hidden;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-2.png') center center / cover no-repeat;
            opacity: 0.1;
            mix-blend-mode: overlay;
        }

        .cta-content {
            position: relative;
            z-index: 2;
            text-align: center;
            padding: 60px 0;
        }

        .cta-content h2 {
            font-size: 2.4rem;
            font-weight: 800;
            color: #fff;
            margin-bottom: 16px;
        }

        .cta-content p {
            font-size: 1.1rem;
            color: rgba(255, 255, 255, 0.85);
            max-width: 600px;
            margin: 0 auto 32px;
        }

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

        .cta-content .btn-primary {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            background: var(--primary);
            color: #fff;
            padding: 14px 36px;
            border-radius: 50px;
            font-size: 1rem;
            font-weight: 700;
            transition: var(--transition);
        }

        .cta-content .btn-primary:hover {
            background: var(--primary-dark);
            transform: translateY(-2px);
            box-shadow: 0 8px 30px rgba(198, 40, 40, 0.4);
            color: #fff;
        }

        .cta-content .btn-outline {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            background: transparent;
            color: #fff;
            padding: 14px 36px;
            border-radius: 50px;
            font-size: 1rem;
            font-weight: 600;
            border: 2px solid rgba(255, 255, 255, 0.3);
            transition: var(--transition);
        }

        .cta-content .btn-outline:hover {
            border-color: #fff;
            background: rgba(255, 255, 255, 0.1);
            color: #fff;
        }

        @media (max-width: 768px) {
            .cta-content h2 {
                font-size: 1.6rem;
            }
            .cta-content p {
                font-size: 0.95rem;
            }
            .cta-content .btn-primary,
            .cta-content .btn-outline {
                padding: 12px 28px;
                font-size: 0.9rem;
            }
            .cta-content {
                padding: 40px 0;
            }
        }

        /* ===== Footer ===== */
        .footer {
            background: var(--footer-bg);
            color: var(--footer-text);
            padding: 60px 0 30px;
        }

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

        .footer .logo {
            color: #fff;
            font-size: 1.5rem;
            margin-bottom: 12px;
        }

        .footer .logo i {
            color: var(--accent);
        }

        .footer .logo span {
            color: var(--accent);
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 40px;
        }

        .footer-grid p {
            font-size: 0.9rem;
            line-height: 1.8;
            color: var(--footer-text);
            max-width: 360px;
            margin-top: 8px;
        }

        .footer-grid h4 {
            color: #fff;
            font-size: 1rem;
            font-weight: 700;
            margin-bottom: 16px;
        }

        .footer-grid a {
            display: block;
            color: var(--footer-text);
            font-size: 0.9rem;
            padding: 4px 0;
            transition: var(--transition);
        }

        .footer-grid a:hover {
            color: var(--accent-light);
            padding-left: 4px;
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding-top: 24px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 12px;
            font-size: 0.85rem;
        }

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

        .footer-bottom-links {
            display: flex;
            gap: 20px;
        }

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

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

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

        @media (max-width: 520px) {
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
            .footer-bottom-links {
                justify-content: center;
                flex-wrap: wrap;
            }
            .footer {
                padding: 40px 0 80px;
            }
        }

        /* ===== 通用按钮 ===== */
        .btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 10px 24px;
            border-radius: 50px;
            font-weight: 600;
            font-size: 0.95rem;
            transition: var(--transition);
            border: none;
            cursor: pointer;
        }

        .btn-primary {
            background: var(--primary);
            color: #fff;
        }

        .btn-primary:hover {
            background: var(--primary-dark);
            transform: translateY(-2px);
            box-shadow: 0 6px 24px rgba(198, 40, 40, 0.35);
            color: #fff;
        }

        .btn-outline {
            background: transparent;
            color: var(--primary);
            border: 2px solid var(--primary);
        }

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

        /* ===== 标签/徽章 ===== */
        .tag {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            padding: 4px 12px;
            border-radius: 50px;
            font-size: 0.8rem;
            font-weight: 500;
            background: var(--bg-alt);
            color: var(--text-light);
        }

        .tag-primary {
            background: var(--primary-bg);
            color: var(--primary);
        }

        .tag-accent {
            background: rgba(249, 168, 37, 0.12);
            color: #b8860b;
        }

        /* ===== 分割线 ===== */
        .divider {
            width: 60px;
            height: 4px;
            background: var(--primary);
            border-radius: 4px;
            margin: 16px 0;
        }

        .divider.center {
            margin: 16px auto;
        }

        /* ===== 浮动操作按钮（移动端） ===== */
        .fab-mobile {
            display: none;
            position: fixed;
            bottom: 80px;
            right: 20px;
            z-index: 800;
            width: 56px;
            height: 56px;
            background: var(--primary);
            color: #fff;
            border-radius: 50%;
            align-items: center;
            justify-content: center;
            font-size: 1.4rem;
            box-shadow: 0 6px 24px rgba(198, 40, 40, 0.4);
            transition: var(--transition);
        }

        .fab-mobile:hover {
            transform: scale(1.05);
            background: var(--primary-dark);
            color: #fff;
        }

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

        /* ===== 滚动动画 ===== */
        .fade-up {
            opacity: 0;
            transform: translateY(30px);
            transition: opacity 0.6s ease, transform 0.6s ease;
        }

        .fade-up.visible {
            opacity: 1;
            transform: translateY(0);
        }

        /* ===== 辅助 ===== */
        .text-center {
            text-align: center;
        }

        .mt-12 {
            margin-top: 12px;
        }
        .mt-24 {
            margin-top: 24px;
        }
        .mt-32 {
            margin-top: 32px;
        }
        .mb-24 {
            margin-bottom: 24px;
        }
        .gap-16 {
            gap: 16px;
        }
        .flex-center {
            display: flex;
            align-items: center;
            justify-content: center;
        }

        @media (max-width: 768px) {
            .mobile-full {
                width: 100%;
                text-align: center;
            }
        }