/* roulang page: index */
/* ===== Design Variables ===== */
        :root {
            --primary: #1a56db;
            --primary-dark: #0f3a8e;
            --primary-light: #3b82f6;
            --accent: #f59e0b;
            --accent-dark: #d97706;
            --accent-light: #fbbf24;
            --bg-body: #ffffff;
            --bg-section: #f8fafc;
            --bg-dark: #0f172a;
            --bg-card: #ffffff;
            --text-primary: #1e293b;
            --text-secondary: #475569;
            --text-muted: #94a3b8;
            --text-light: #f1f5f9;
            --border: #e2e8f0;
            --border-light: #f1f5f9;
            --radius-sm: 6px;
            --radius-md: 12px;
            --radius-lg: 20px;
            --radius-xl: 28px;
            --shadow-sm: 0 1px 3px rgba(0,0,0,0.06), 0 1px 2px rgba(0,0,0,0.04);
            --shadow-md: 0 4px 12px rgba(0,0,0,0.08);
            --shadow-lg: 0 12px 40px rgba(0,0,0,0.12);
            --shadow-xl: 0 20px 60px rgba(0,0,0,0.15);
            --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, 'Noto Sans SC', sans-serif;
            --container-max: 1200px;
            --header-height: 72px;
            --spacing-section: 96px;
            --spacing-section-mobile: 56px;
        }

        /* ===== Reset & Base ===== */
        *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
        html { scroll-behavior: smooth; -webkit-font-smoothing: antialiased; }
        body {
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.7;
            color: var(--text-primary);
            background: var(--bg-body);
            overflow-x: hidden;
        }
        img { max-width: 100%; height: auto; display: block; }
        a { color: inherit; text-decoration: none; transition: var(--transition); }
        ul, ol { list-style: none; }
        button, input, textarea { font-family: inherit; font-size: inherit; line-height: inherit; border: none; outline: none; background: none; }
        button { cursor: pointer; }
        h1, h2, h3, h4, h5, h6 { font-weight: 700; line-height: 1.25; color: var(--text-primary); }
        h1 { font-size: clamp(2.2rem, 5vw, 3.6rem); }
        h2 { font-size: clamp(1.6rem, 3.5vw, 2.4rem); }
        h3 { font-size: clamp(1.15rem, 2vw, 1.5rem); }
        h4 { font-size: 1.1rem; }
        p { color: var(--text-secondary); margin-bottom: 0.5rem; }
        .container { width: 100%; max-width: var(--container-max); margin: 0 auto; padding: 0 24px; }
        .section { padding: var(--spacing-section) 0; }
        .section-title { text-align: center; margin-bottom: 48px; }
        .section-title h2 { margin-bottom: 12px; }
        .section-title p { max-width: 640px; margin: 0 auto; color: var(--text-muted); font-size: 1.05rem; }
        .text-center { text-align: center; }
        .sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0; }

        /* ===== Buttons ===== */
        .btn {
            display: inline-flex; align-items: center; gap: 8px; padding: 12px 28px; border-radius: var(--radius-md);
            font-weight: 600; font-size: 0.95rem; line-height: 1.4; transition: var(--transition);
            border: 2px solid transparent; white-space: nowrap;
        }
        .btn-primary { background: var(--primary); color: #fff; border-color: var(--primary); }
        .btn-primary:hover { background: var(--primary-dark); border-color: var(--primary-dark); transform: translateY(-2px); box-shadow: var(--shadow-md); }
        .btn-primary:active { transform: translateY(0); box-shadow: var(--shadow-sm); }
        .btn-accent { background: var(--accent); color: #1e293b; border-color: var(--accent); }
        .btn-accent:hover { background: var(--accent-dark); border-color: var(--accent-dark); transform: translateY(-2px); box-shadow: var(--shadow-md); color: #fff; }
        .btn-outline { background: transparent; color: var(--primary); border-color: var(--primary); }
        .btn-outline:hover { background: var(--primary); color: #fff; transform: translateY(-2px); box-shadow: var(--shadow-md); }
        .btn-white { background: #fff; color: var(--primary); border-color: #fff; }
        .btn-white:hover { background: var(--bg-section); transform: translateY(-2px); box-shadow: var(--shadow-md); }
        .btn-lg { padding: 16px 36px; font-size: 1.05rem; border-radius: var(--radius-lg); }
        .btn-sm { padding: 8px 18px; font-size: 0.85rem; border-radius: var(--radius-sm); }

        /* ===== Badge / Tag ===== */
        .badge {
            display: inline-block; padding: 4px 14px; border-radius: 50px; font-size: 0.78rem; font-weight: 600;
            background: var(--primary-light); color: #fff; letter-spacing: 0.3px;
        }
        .badge-accent { background: var(--accent); color: #1e293b; }
        .badge-soft { background: #e0f2fe; color: var(--primary-dark); }
        .tag {
            display: inline-block; padding: 2px 12px; border-radius: var(--radius-sm); font-size: 0.75rem; font-weight: 500;
            background: var(--bg-section); color: var(--text-secondary); border: 1px solid var(--border); transition: var(--transition);
        }
        .tag:hover { background: var(--primary); color: #fff; border-color: var(--primary); }

        /* ===== Card ===== */
        .card {
            background: var(--bg-card); 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); }
        .card-img { width: 100%; aspect-ratio: 16/9; object-fit: cover; }
        .card-body { padding: 24px; }
        .card-body h3 { margin-bottom: 8px; font-size: 1.1rem; }
        .card-body p { font-size: 0.9rem; color: var(--text-muted); margin-bottom: 12px; }
        .card-meta { display: flex; align-items: center; gap: 16px; font-size: 0.8rem; color: var(--text-muted); }
        .card-link { display: inline-flex; align-items: center; gap: 6px; font-weight: 600; font-size: 0.9rem; color: var(--primary); }
        .card-link:hover { gap: 10px; }

        /* ===== Header & Nav ===== */
        .site-header {
            position: fixed; top: 0; left: 0; right: 0; height: var(--header-height); z-index: 1000;
            background: rgba(255,255,255,0.92); backdrop-filter: blur(20px); -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid var(--border-light); transition: var(--transition);
        }
        .site-header.scrolled { box-shadow: var(--shadow-md); }
        .header-inner { display: flex; align-items: center; justify-content: space-between; height: 100%; }
        .logo { display: flex; align-items: center; gap: 10px; font-size: 1.25rem; font-weight: 800; color: var(--primary); }
        .logo-icon { width: 36px; height: 36px; background: var(--primary); border-radius: var(--radius-sm); display: flex; align-items: center; justify-content: center; color: #fff; font-size: 1.1rem; }
        .logo span { color: var(--text-primary); }
        .nav-list { display: flex; align-items: center; gap: 8px; }
        .nav-list a {
            padding: 8px 20px; border-radius: var(--radius-sm); font-weight: 500; font-size: 0.9rem;
            color: var(--text-secondary); transition: var(--transition); position: relative;
        }
        .nav-list a:hover { color: var(--primary); background: #f0f4ff; }
        .nav-list a.active { color: var(--primary); background: #f0f4ff; font-weight: 600; }
        .nav-list a.active::after { content: ''; position: absolute; bottom: -2px; left: 20px; right: 20px; height: 3px; background: var(--primary); border-radius: 3px; }
        .nav-cta { margin-left: 12px; }
        .nav-cta .btn { padding: 8px 22px; font-size: 0.85rem; }
        .hamburger { display: none; flex-direction: column; gap: 5px; padding: 8px; cursor: pointer; background: none; border: none; }
        .hamburger span { display: block; width: 26px; height: 3px; background: var(--text-primary); border-radius: 3px; transition: var(--transition); }
        .hamburger.active span:nth-child(1) { transform: rotate(45deg) translate(5px, 6px); }
        .hamburger.active span:nth-child(2) { opacity: 0; }
        .hamburger.active span:nth-child(3) { transform: rotate(-45deg) translate(5px, -6px); }

        /* ===== Hero ===== */
        .hero {
            position: relative; min-height: 100vh; display: flex; align-items: center; justify-content: center;
            background: linear-gradient(135deg, #0f172a 0%, #1e3a5f 50%, #0f172a 100%);
            overflow: hidden; padding-top: var(--header-height);
        }
        .hero-bg {
            position: absolute; inset: 0; background: url('/assets/images/backpic/back-1.png') center center / cover no-repeat;
            opacity: 0.25; mix-blend-mode: overlay;
        }
        .hero-overlay { position: absolute; inset: 0; background: radial-gradient(ellipse at center, transparent 0%, rgba(15,23,42,0.7) 100%); }
        .hero-content { position: relative; z-index: 2; text-align: center; max-width: 820px; padding: 40px 24px; }
        .hero-badge { display: inline-block; padding: 6px 20px; border-radius: 50px; background: rgba(255,255,255,0.12); backdrop-filter: blur(8px); color: var(--accent-light); font-size: 0.85rem; font-weight: 500; margin-bottom: 24px; border: 1px solid rgba(255,255,255,0.1); }
        .hero h1 { color: #fff; margin-bottom: 20px; font-weight: 800; letter-spacing: -0.5px; }
        .hero h1 .highlight { background: linear-gradient(135deg, var(--accent-light), var(--accent)); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
        .hero p { color: rgba(255,255,255,0.7); font-size: clamp(1.05rem, 2vw, 1.25rem); max-width: 640px; margin: 0 auto 32px; line-height: 1.8; }
        .hero-actions { display: flex; flex-wrap: wrap; gap: 16px; justify-content: center; }
        .hero-stats { display: flex; flex-wrap: wrap; gap: 40px; justify-content: center; margin-top: 48px; padding-top: 40px; border-top: 1px solid rgba(255,255,255,0.1); }
        .hero-stat { text-align: center; }
        .hero-stat .num { font-size: 2rem; font-weight: 800; color: #fff; line-height: 1.2; }
        .hero-stat .num .accent { color: var(--accent-light); }
        .hero-stat .label { font-size: 0.85rem; color: rgba(255,255,255,0.5); margin-top: 4px; }

        /* ===== Features ===== */
        .features-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 32px; }
        .feature-card { text-align: center; padding: 40px 28px; background: var(--bg-card); border-radius: var(--radius-md); border: 1px solid var(--border-light); transition: var(--transition); }
        .feature-card:hover { box-shadow: var(--shadow-md); transform: translateY(-6px); border-color: var(--primary-light); }
        .feature-icon { width: 64px; height: 64px; margin: 0 auto 20px; background: linear-gradient(135deg, #e0f2fe, #f0f4ff); border-radius: var(--radius-md); display: flex; align-items: center; justify-content: center; font-size: 1.6rem; color: var(--primary); }
        .feature-card h3 { margin-bottom: 10px; }
        .feature-card p { font-size: 0.9rem; color: var(--text-muted); }

        /* ===== Categories ===== */
        .categories-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 28px; }
        .cat-card { position: relative; border-radius: var(--radius-md); overflow: hidden; min-height: 280px; display: flex; align-items: flex-end; }
        .cat-card img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; transition: var(--transition); }
        .cat-card:hover img { transform: scale(1.05); }
        .cat-overlay { position: absolute; inset: 0; background: linear-gradient(to top, rgba(0,0,0,0.7) 0%, transparent 60%); }
        .cat-info { position: relative; z-index: 2; padding: 32px; width: 100%; }
        .cat-info h3 { color: #fff; font-size: 1.3rem; margin-bottom: 6px; }
        .cat-info p { color: rgba(255,255,255,0.7); font-size: 0.9rem; margin-bottom: 12px; }
        .cat-link { color: var(--accent-light); font-weight: 600; font-size: 0.9rem; display: inline-flex; align-items: center; gap: 6px; }
        .cat-link:hover { gap: 10px; }

        /* ===== Latest Posts (CMS) ===== */
        .posts-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; }
        .post-card { background: var(--bg-card); border-radius: var(--radius-md); overflow: hidden; border: 1px solid var(--border-light); transition: var(--transition); }
        .post-card:hover { box-shadow: var(--shadow-md); transform: translateY(-4px); }
        .post-card .card-img { aspect-ratio: 16/10; }
        .post-body { padding: 20px 24px 24px; }
        .post-body .tag { margin-bottom: 10px; }
        .post-body h3 { font-size: 1.05rem; margin-bottom: 8px; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
        .post-body p { font-size: 0.88rem; color: var(--text-muted); display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; margin-bottom: 12px; }
        .post-meta { display: flex; align-items: center; gap: 16px; font-size: 0.78rem; color: var(--text-muted); }
        .post-meta i { margin-right: 4px; }
        .empty-posts { text-align: center; padding: 60px 20px; color: var(--text-muted); font-size: 1rem; background: var(--bg-section); border-radius: var(--radius-md); }

        /* ===== Stats / Data ===== */
        .stats-section { background: var(--bg-dark); color: #fff; }
        .stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 32px; text-align: center; }
        .stat-item { padding: 20px; }
        .stat-item .num { font-size: 2.4rem; font-weight: 800; color: var(--accent-light); line-height: 1.2; }
        .stat-item .label { font-size: 0.9rem; color: rgba(255,255,255,0.6); margin-top: 6px; }
        .stat-item .desc { font-size: 0.8rem; color: rgba(255,255,255,0.4); margin-top: 4px; }

        /* ===== Process ===== */
        .process-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 28px; counter-reset: step; }
        .process-step { text-align: center; padding: 32px 20px; position: relative; }
        .process-step::after { content: ''; position: absolute; top: 40px; right: -14px; width: 28px; height: 2px; background: var(--border); }
        .process-step:last-child::after { display: none; }
        .step-num { width: 56px; height: 56px; margin: 0 auto 16px; border-radius: 50%; background: linear-gradient(135deg, var(--primary), var(--primary-light)); color: #fff; font-size: 1.3rem; font-weight: 700; display: flex; align-items: center; justify-content: center; }
        .process-step h3 { font-size: 1.05rem; margin-bottom: 6px; }
        .process-step p { font-size: 0.85rem; color: var(--text-muted); }

        /* ===== FAQ ===== */
        .faq-list { max-width: 760px; margin: 0 auto; display: flex; flex-direction: column; gap: 12px; }
        .faq-item { background: var(--bg-card); border: 1px solid var(--border-light); border-radius: var(--radius-md); overflow: hidden; transition: var(--transition); }
        .faq-item:hover { border-color: var(--primary-light); }
        .faq-question { width: 100%; padding: 20px 28px; display: flex; align-items: center; justify-content: space-between; font-weight: 600; font-size: 1rem; color: var(--text-primary); background: none; text-align: left; gap: 16px; }
        .faq-question i { transition: var(--transition); color: var(--primary); font-size: 0.85rem; flex-shrink: 0; }
        .faq-item.open .faq-question i { transform: rotate(180deg); }
        .faq-answer { max-height: 0; overflow: hidden; transition: max-height 0.35s ease; padding: 0 28px; }
        .faq-answer-inner { padding-bottom: 20px; font-size: 0.92rem; color: var(--text-secondary); line-height: 1.8; }
        .faq-item.open .faq-answer { max-height: 400px; }

        /* ===== CTA ===== */
        .cta-section { background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 100%); color: #fff; text-align: center; padding: 80px 0; }
        .cta-section h2 { color: #fff; margin-bottom: 16px; }
        .cta-section p { color: rgba(255,255,255,0.75); max-width: 560px; margin: 0 auto 32px; font-size: 1.05rem; }
        .cta-actions { display: flex; flex-wrap: wrap; gap: 16px; justify-content: center; }

        /* ===== Footer ===== */
        .site-footer { background: var(--bg-dark); color: rgba(255,255,255,0.7); padding: 60px 0 32px; }
        .footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 40px; margin-bottom: 40px; }
        .footer-brand .logo { color: #fff; margin-bottom: 16px; }
        .footer-brand .logo span { color: #fff; }
        .footer-brand p { font-size: 0.9rem; color: rgba(255,255,255,0.5); max-width: 320px; line-height: 1.8; }
        .footer-col h4 { color: #fff; font-size: 0.95rem; margin-bottom: 16px; }
        .footer-col a { display: block; font-size: 0.88rem; color: rgba(255,255,255,0.5); padding: 4px 0; transition: var(--transition); }
        .footer-col 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; flex-wrap: wrap; justify-content: space-between; align-items: center; gap: 16px; font-size: 0.82rem; color: rgba(255,255,255,0.35); }
        .footer-bottom a { color: rgba(255,255,255,0.5); }
        .footer-bottom a:hover { color: var(--accent-light); }
        .footer-social { display: flex; gap: 12px; }
        .footer-social a { width: 36px; height: 36px; border-radius: 50%; background: rgba(255,255,255,0.06); display: flex; align-items: center; justify-content: center; color: rgba(255,255,255,0.5); font-size: 0.9rem; transition: var(--transition); }
        .footer-social a:hover { background: var(--primary); color: #fff; }

        /* ===== Responsive ===== */
        @media (max-width: 1024px) {
            .features-grid { grid-template-columns: repeat(2, 1fr); }
            .posts-grid { grid-template-columns: repeat(2, 1fr); }
            .stats-grid { grid-template-columns: repeat(2, 1fr); }
            .process-grid { grid-template-columns: repeat(2, 1fr); }
            .process-step:nth-child(2)::after { display: none; }
            .footer-grid { grid-template-columns: repeat(2, 1fr); }
            .categories-grid { grid-template-columns: 1fr; }
        }
        @media (max-width: 768px) {
            :root { --spacing-section: var(--spacing-section-mobile); --header-height: 64px; }
            .hamburger { display: flex; }
            .nav-list { position: fixed; top: var(--header-height); left: 0; right: 0; background: rgba(255,255,255,0.98); backdrop-filter: blur(20px); flex-direction: column; padding: 20px 24px; gap: 4px; box-shadow: var(--shadow-lg); transform: translateY(-120%); opacity: 0; transition: var(--transition); border-bottom: 1px solid var(--border); }
            .nav-list.open { transform: translateY(0); opacity: 1; }
            .nav-list a { width: 100%; padding: 12px 16px; font-size: 1rem; }
            .nav-list a.active::after { display: none; }
            .nav-cta { margin-left: 0; margin-top: 8px; width: 100%; }
            .nav-cta .btn { width: 100%; justify-content: center; }
            .hero { min-height: 80vh; }
            .hero h1 { font-size: clamp(1.6rem, 6vw, 2.4rem); }
            .hero-stats { gap: 24px; }
            .hero-stat .num { font-size: 1.5rem; }
            .features-grid { grid-template-columns: 1fr; }
            .posts-grid { grid-template-columns: 1fr; }
            .stats-grid { grid-template-columns: repeat(2, 1fr); gap: 16px; }
            .stat-item .num { font-size: 1.8rem; }
            .process-grid { grid-template-columns: 1fr; }
            .process-step::after { display: none; }
            .footer-grid { grid-template-columns: 1fr; gap: 24px; }
            .footer-bottom { flex-direction: column; text-align: center; }
            .faq-question { padding: 16px 20px; font-size: 0.92rem; }
            .faq-answer { padding: 0 20px; }
            .section-title { margin-bottom: 32px; }
            .cat-card { min-height: 200px; }
        }
        @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; }
            .stats-grid { grid-template-columns: 1fr 1fr; gap: 12px; }
            .cta-actions { flex-direction: column; align-items: center; }
            .cta-actions .btn { width: 100%; max-width: 280px; justify-content: center; }
        }

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

        /* ===== Animations ===== */
        @keyframes fadeUp { from { opacity: 0; transform: translateY(24px); } to { opacity: 1; transform: translateY(0); } }
        .fade-up { animation: fadeUp 0.6s ease forwards; }
        .delay-1 { animation-delay: 0.1s; }
        .delay-2 { animation-delay: 0.2s; }
        .delay-3 { animation-delay: 0.3s; }
        .delay-4 { animation-delay: 0.4s; }

        /* ===== Misc ===== */
        .bg-section { background: var(--bg-section); }
        .divider { width: 60px; height: 4px; background: linear-gradient(90deg, var(--primary), var(--accent)); border-radius: 4px; margin: 0 auto 16px; }

/* roulang page: category1 */
/* ===== 设计变量 ===== */
        :root {
            --primary: #e63946;
            --primary-dark: #c1121f;
            --primary-light: #ff6b6b;
            --secondary: #1d3557;
            --secondary-light: #2b4d7a;
            --accent: #f4a261;
            --bg-light: #f8f9fa;
            --bg-dark: #1a1a2e;
            --bg-card: #ffffff;
            --text-dark: #1a1a2e;
            --text-body: #333333;
            --text-light: #6c757d;
            --text-white: #ffffff;
            --border-color: #e9ecef;
            --border-light: rgba(255, 255, 255, 0.12);
            --radius-sm: 8px;
            --radius-md: 14px;
            --radius-lg: 24px;
            --radius-xl: 32px;
            --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 50px rgba(0, 0, 0, 0.15);
            --shadow-hover: 0 16px 48px rgba(230, 57, 70, 0.18);
            --transition: 0.35s 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;
            --header-height: 72px;
        }

        /* ===== Reset & Base ===== */
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }

        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
        }

        body {
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.7;
            color: var(--text-body);
            background: var(--bg-light);
        }

        a {
            color: var(--primary);
            text-decoration: none;
            transition: color var(--transition);
        }
        a:hover {
            color: var(--primary-dark);
        }
        a:focus-visible {
            outline: 3px solid var(--primary);
            outline-offset: 2px;
            border-radius: 4px;
        }

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

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

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

        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            color: var(--text-dark);
            font-weight: 700;
            line-height: 1.3;
            margin-bottom: 0.5rem;
        }

        p {
            margin-bottom: 1rem;
        }
        p:last-child {
            margin-bottom: 0;
        }

        /* ===== Container ===== */
        .container {
            max-width: var(--container-max);
            margin-left: auto;
            margin-right: auto;
            padding-left: 20px;
            padding-right: 20px;
        }

        /* ===== Header / Nav ===== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            height: var(--header-height);
            background: rgba(26, 26, 46, 0.92);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid var(--border-light);
            transition: background var(--transition), box-shadow var(--transition);
        }

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

        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.5rem;
            font-weight: 800;
            color: var(--text-white);
            letter-spacing: -0.5px;
            text-decoration: none;
            flex-shrink: 0;
        }
        .logo:hover {
            color: var(--primary-light);
        }
        .logo-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            background: var(--primary);
            border-radius: 10px;
            color: #fff;
            font-size: 1.2rem;
            transition: transform var(--transition);
        }
        .logo:hover .logo-icon {
            transform: rotate(-10deg) scale(1.05);
        }

        .nav-list {
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .nav-list a {
            display: inline-flex;
            align-items: center;
            padding: 8px 18px;
            border-radius: var(--radius-sm);
            color: rgba(255, 255, 255, 0.75);
            font-weight: 500;
            font-size: 0.95rem;
            transition: all var(--transition);
            position: relative;
            text-decoration: none;
        }
        .nav-list a:hover {
            color: #fff;
            background: rgba(255, 255, 255, 0.08);
        }
        .nav-list a.active {
            color: #fff;
            background: var(--primary);
            box-shadow: 0 4px 15px rgba(230, 57, 70, 0.35);
        }
        .nav-list a.active::after {
            display: none;
        }

        .nav-cta .btn {
            margin-left: 8px;
            padding: 8px 24px;
            border-radius: var(--radius-sm);
            font-weight: 600;
            font-size: 0.9rem;
        }

        .nav-toggle {
            display: none;
            background: none;
            border: none;
            color: #fff;
            font-size: 1.6rem;
            cursor: pointer;
            padding: 4px 8px;
            border-radius: 6px;
            transition: background var(--transition);
        }
        .nav-toggle:hover {
            background: rgba(255, 255, 255, 0.08);
        }

        /* ===== Hero / Banner ===== */
        .category-hero {
            position: relative;
            padding: 140px 0 80px;
            background: var(--bg-dark);
            background-image: url('/assets/images/backpic/back-2.png');
            background-size: cover;
            background-position: center;
            background-attachment: fixed;
            overflow: hidden;
            min-height: 380px;
            display: flex;
            align-items: center;
        }
        .category-hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(26, 26, 46, 0.88) 30%, rgba(230, 57, 70, 0.55) 100%);
            z-index: 1;
        }
        .category-hero .container {
            position: relative;
            z-index: 2;
            text-align: center;
        }
        .category-hero h1 {
            font-size: 3.2rem;
            font-weight: 800;
            color: #fff;
            margin-bottom: 16px;
            letter-spacing: -1px;
            text-shadow: 0 2px 20px rgba(0, 0, 0, 0.3);
        }
        .category-hero p {
            font-size: 1.2rem;
            color: rgba(255, 255, 255, 0.85);
            max-width: 700px;
            margin: 0 auto 28px;
            line-height: 1.8;
        }
        .hero-badges {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            justify-content: center;
        }
        .hero-badges .badge {
            padding: 8px 20px;
            border-radius: 50px;
            font-size: 0.9rem;
            font-weight: 500;
            background: rgba(255, 255, 255, 0.15);
            backdrop-filter: blur(6px);
            color: #fff;
            border: 1px solid rgba(255, 255, 255, 0.20);
        }
        .hero-badges .badge i {
            margin-right: 6px;
            color: var(--accent);
        }

        /* ===== 通用板块 ===== */
        .section {
            padding: 80px 0;
        }
        .section-alt {
            background: var(--bg-card);
        }
        .section-dark {
            background: var(--bg-dark);
            color: #fff;
        }
        .section-dark h2,
        .section-dark h3,
        .section-dark h4 {
            color: #fff;
        }

        .section-title {
            text-align: center;
            margin-bottom: 50px;
        }
        .section-title h2 {
            font-size: 2.2rem;
            font-weight: 800;
            margin-bottom: 12px;
            letter-spacing: -0.5px;
        }
        .section-title p {
            font-size: 1.1rem;
            color: var(--text-light);
            max-width: 600px;
            margin: 0 auto;
        }
        .section-dark .section-title p {
            color: rgba(255, 255, 255, 0.65);
        }

        .title-accent {
            display: inline-block;
            width: 50px;
            height: 4px;
            background: var(--primary);
            border-radius: 4px;
            margin-bottom: 16px;
        }

        /* ===== 网格 ===== */
        .grid-2 {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 32px;
        }
        .grid-3 {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }
        .grid-4 {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }

        /* ===== 卡片 ===== */
        .card-sport {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: all var(--transition);
            border: 1px solid var(--border-color);
            display: flex;
            flex-direction: column;
        }
        .card-sport:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-hover);
            border-color: var(--primary-light);
        }
        .card-sport .card-img {
            width: 100%;
            height: 200px;
            object-fit: cover;
            border-radius: 0;
        }
        .card-sport .card-body {
            padding: 24px 22px 26px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .card-sport .card-body h3 {
            font-size: 1.25rem;
            font-weight: 700;
            margin-bottom: 8px;
        }
        .card-sport .card-body p {
            font-size: 0.95rem;
            color: var(--text-light);
            flex: 1;
            margin-bottom: 16px;
        }
        .card-sport .card-footer {
            padding: 0 22px 22px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            border-top: 1px solid var(--border-color);
            padding-top: 16px;
            margin-top: auto;
        }
        .card-sport .card-tag {
            display: inline-block;
            padding: 4px 14px;
            border-radius: 50px;
            font-size: 0.8rem;
            font-weight: 500;
            background: var(--bg-light);
            color: var(--text-light);
        }
        .card-sport .card-tag.hot {
            background: #fff1f0;
            color: var(--primary);
        }

        /* ===== 图文区块 ===== */
        .feature-block {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 50px;
            align-items: center;
        }
        .feature-block .feature-img {
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-md);
            width: 100%;
            height: 360px;
            object-fit: cover;
        }
        .feature-block .feature-content h3 {
            font-size: 1.8rem;
            font-weight: 700;
            margin-bottom: 16px;
        }
        .feature-block .feature-content p {
            color: var(--text-light);
            font-size: 1.05rem;
            line-height: 1.8;
        }
        .feature-list {
            margin-top: 20px;
        }
        .feature-list li {
            display: flex;
            align-items: flex-start;
            gap: 12px;
            padding: 10px 0;
            font-size: 1rem;
            color: var(--text-body);
            border-bottom: 1px solid var(--border-color);
        }
        .feature-list li:last-child {
            border-bottom: none;
        }
        .feature-list li i {
            color: var(--primary);
            font-size: 1.1rem;
            margin-top: 4px;
            flex-shrink: 0;
        }

        /* ===== 赛程列表 ===== */
        .schedule-list {
            display: flex;
            flex-direction: column;
            gap: 16px;
        }
        .schedule-item {
            display: flex;
            align-items: center;
            gap: 20px;
            background: var(--bg-card);
            border-radius: var(--radius-md);
            padding: 18px 24px;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-color);
            transition: all var(--transition);
        }
        .schedule-item:hover {
            box-shadow: var(--shadow-md);
            border-color: var(--primary-light);
        }
        .schedule-item .date {
            flex-shrink: 0;
            text-align: center;
            min-width: 60px;
        }
        .schedule-item .date .day {
            font-size: 1.6rem;
            font-weight: 800;
            color: var(--primary);
            line-height: 1.2;
        }
        .schedule-item .date .month {
            font-size: 0.8rem;
            color: var(--text-light);
            text-transform: uppercase;
        }
        .schedule-item .info {
            flex: 1;
        }
        .schedule-item .info .match {
            font-weight: 700;
            font-size: 1.05rem;
            color: var(--text-dark);
        }
        .schedule-item .info .league {
            font-size: 0.85rem;
            color: var(--text-light);
        }
        .schedule-item .status {
            flex-shrink: 0;
            padding: 6px 16px;
            border-radius: 50px;
            font-size: 0.85rem;
            font-weight: 600;
        }
        .schedule-item .status.live {
            background: #fff1f0;
            color: var(--primary);
            animation: pulse-live 1.8s infinite;
        }
        .schedule-item .status.upcoming {
            background: #e8f4f8;
            color: var(--secondary);
        }
        .schedule-item .status.finished {
            background: var(--bg-light);
            color: var(--text-light);
        }

        @keyframes pulse-live {
            0%,
            100% {
                opacity: 1;
            }
            50% {
                opacity: 0.6;
            }
        }

        /* ===== 统计数字 ===== */
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 30px;
            text-align: center;
        }
        .stat-item .stat-number {
            font-size: 2.8rem;
            font-weight: 800;
            color: var(--primary);
            line-height: 1.2;
            margin-bottom: 6px;
        }
        .stat-item .stat-label {
            font-size: 1rem;
            color: var(--text-light);
            font-weight: 500;
        }
        .section-dark .stat-item .stat-number {
            color: var(--accent);
        }
        .section-dark .stat-item .stat-label {
            color: rgba(255, 255, 255, 0.7);
        }

        /* ===== FAQ ===== */
        .faq-grid {
            max-width: 800px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .faq-item {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            border: 1px solid var(--border-color);
            overflow: hidden;
            transition: all var(--transition);
        }
        .faq-item:hover {
            border-color: var(--primary-light);
        }
        .faq-item .faq-question {
            padding: 18px 24px;
            font-weight: 600;
            font-size: 1.05rem;
            color: var(--text-dark);
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            background: none;
            border: none;
            width: 100%;
            text-align: left;
            transition: background var(--transition);
        }
        .faq-item .faq-question:hover {
            background: rgba(230, 57, 70, 0.04);
        }
        .faq-item .faq-question i {
            transition: transform var(--transition);
            color: var(--primary);
            font-size: 0.9rem;
        }
        .faq-item .faq-question[aria-expanded="true"] i {
            transform: rotate(180deg);
        }
        .faq-item .faq-answer {
            padding: 0 24px 18px;
            color: var(--text-light);
            font-size: 0.95rem;
            line-height: 1.7;
            display: none;
        }
        .faq-item .faq-answer.show {
            display: block;
        }

        /* ===== CTA ===== */
        .cta-block {
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
            border-radius: var(--radius-lg);
            padding: 60px 50px;
            text-align: center;
            color: #fff;
            position: relative;
            overflow: hidden;
        }
        .cta-block::after {
            content: '';
            position: absolute;
            top: -50%;
            right: -30%;
            width: 500px;
            height: 500px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.05);
            pointer-events: none;
        }
        .cta-block h2 {
            font-size: 2.2rem;
            font-weight: 800;
            color: #fff;
            margin-bottom: 16px;
        }
        .cta-block p {
            font-size: 1.1rem;
            color: rgba(255, 255, 255, 0.9);
            max-width: 600px;
            margin: 0 auto 28px;
        }
        .cta-block .btn-group {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            justify-content: center;
        }

        /* ===== 按钮 ===== */
        .btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 32px;
            border-radius: var(--radius-sm);
            font-weight: 600;
            font-size: 1rem;
            border: none;
            cursor: pointer;
            transition: all var(--transition);
            text-decoration: none;
            line-height: 1.4;
        }
        .btn-primary {
            background: var(--primary);
            color: #fff;
            box-shadow: 0 4px 16px rgba(230, 57, 70, 0.30);
        }
        .btn-primary:hover {
            background: var(--primary-dark);
            transform: translateY(-2px);
            box-shadow: 0 8px 28px rgba(230, 57, 70, 0.40);
            color: #fff;
        }
        .btn-primary:active {
            transform: translateY(0);
            box-shadow: 0 2px 10px rgba(230, 57, 70, 0.25);
        }
        .btn-outline {
            background: transparent;
            color: #fff;
            border: 2px solid rgba(255, 255, 255, 0.4);
        }
        .btn-outline:hover {
            background: rgba(255, 255, 255, 0.12);
            border-color: #fff;
            color: #fff;
            transform: translateY(-2px);
        }
        .btn-light {
            background: #fff;
            color: var(--primary);
        }
        .btn-light:hover {
            background: #f0f0f0;
            transform: translateY(-2px);
            color: var(--primary-dark);
        }
        .btn-sm {
            padding: 8px 20px;
            font-size: 0.9rem;
        }
        .btn-lg {
            padding: 16px 40px;
            font-size: 1.1rem;
        }

        /* ===== 标签 ===== */
        .tag-list {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            margin-bottom: 24px;
        }
        .tag-list .tag {
            padding: 6px 18px;
            border-radius: 50px;
            font-size: 0.85rem;
            font-weight: 500;
            background: var(--bg-light);
            color: var(--text-light);
            border: 1px solid var(--border-color);
            transition: all var(--transition);
            cursor: pointer;
        }
        .tag-list .tag:hover,
        .tag-list .tag.active {
            background: var(--primary);
            color: #fff;
            border-color: var(--primary);
        }

        /* ===== 分页 ===== */
        .pagination-wrap {
            display: flex;
            justify-content: center;
            gap: 8px;
            margin-top: 40px;
        }
        .pagination-wrap a {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 42px;
            height: 42px;
            border-radius: var(--radius-sm);
            border: 1px solid var(--border-color);
            color: var(--text-body);
            font-weight: 500;
            transition: all var(--transition);
            text-decoration: none;
        }
        .pagination-wrap a:hover,
        .pagination-wrap a.active {
            background: var(--primary);
            color: #fff;
            border-color: var(--primary);
        }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--bg-dark);
            color: rgba(255, 255, 255, 0.75);
            padding: 60px 0 30px;
        }
        .site-footer .logo {
            margin-bottom: 16px;
        }
        .site-footer p {
            font-size: 0.95rem;
            line-height: 1.7;
            max-width: 360px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1.5fr;
            gap: 40px;
            padding-bottom: 40px;
            border-bottom: 1px solid var(--border-light);
            margin-bottom: 30px;
        }
        .footer-col h4 {
            color: #fff;
            font-size: 1.05rem;
            font-weight: 700;
            margin-bottom: 18px;
        }
        .footer-col a {
            display: block;
            color: rgba(255, 255, 255, 0.65);
            padding: 6px 0;
            font-size: 0.95rem;
            transition: color var(--transition);
            text-decoration: none;
        }
        .footer-col a:hover {
            color: var(--primary-light);
        }
        .footer-social {
            display: flex;
            gap: 12px;
            margin-top: 12px;
        }
        .footer-social a {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.08);
            color: #fff;
            font-size: 1.1rem;
            transition: all var(--transition);
            padding: 0;
        }
        .footer-social a:hover {
            background: var(--primary);
            transform: translateY(-3px);
        }
        .footer-bottom {
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 12px;
            font-size: 0.9rem;
            color: rgba(255, 255, 255, 0.5);
        }
        .footer-bottom a {
            color: rgba(255, 255, 255, 0.7);
            text-decoration: none;
        }
        .footer-bottom a:hover {
            color: var(--primary-light);
        }

        /* ===== 响应式 ===== */
        @media (max-width: 1024px) {
            .grid-4 {
                grid-template-columns: repeat(2, 1fr);
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 30px;
            }
            .category-hero h1 {
                font-size: 2.6rem;
            }
        }

        @media (max-width: 768px) {
            .nav-list {
                display: none;
                position: absolute;
                top: var(--header-height);
                left: 0;
                right: 0;
                flex-direction: column;
                background: rgba(26, 26, 46, 0.98);
                backdrop-filter: blur(20px);
                padding: 20px 24px;
                border-bottom: 1px solid var(--border-light);
                gap: 6px;
            }
            .nav-list.open {
                display: flex;
            }
            .nav-list a {
                width: 100%;
                padding: 12px 18px;
                border-radius: var(--radius-sm);
            }
            .nav-cta {
                margin-top: 8px;
                width: 100%;
            }
            .nav-cta .btn {
                width: 100%;
                justify-content: center;
                margin-left: 0;
            }
            .nav-toggle {
                display: block;
            }

            .category-hero {
                padding: 120px 0 60px;
                min-height: 300px;
            }
            .category-hero h1 {
                font-size: 2rem;
            }
            .category-hero p {
                font-size: 1rem;
            }

            .section {
                padding: 50px 0;
            }
            .section-title h2 {
                font-size: 1.7rem;
            }

            .grid-2,
            .grid-3,
            .grid-4 {
                grid-template-columns: 1fr;
                gap: 20px;
            }

            .feature-block {
                grid-template-columns: 1fr;
                gap: 30px;
            }
            .feature-block .feature-img {
                height: 240px;
            }

            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 20px;
            }
            .stat-item .stat-number {
                font-size: 2rem;
            }

            .schedule-item {
                flex-wrap: wrap;
                padding: 14px 18px;
                gap: 12px;
            }
            .schedule-item .date {
                min-width: 50px;
            }
            .schedule-item .date .day {
                font-size: 1.3rem;
            }

            .cta-block {
                padding: 40px 24px;
            }
            .cta-block h2 {
                font-size: 1.6rem;
            }

            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }

            .pagination-wrap a {
                width: 38px;
                height: 38px;
                font-size: 0.9rem;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding-left: 16px;
                padding-right: 16px;
            }
            .category-hero h1 {
                font-size: 1.6rem;
            }
            .hero-badges .badge {
                font-size: 0.8rem;
                padding: 6px 14px;
            }
            .card-sport .card-img {
                height: 160px;
            }
            .btn-lg {
                padding: 14px 28px;
                font-size: 1rem;
            }
            .stat-item .stat-number {
                font-size: 1.6rem;
            }
        }

        /* ===== 工具类 ===== */
        .text-center {
            text-align: center;
        }
        .mt-2 {
            margin-top: 20px;
        }
        .mb-2 {
            margin-bottom: 20px;
        }
        .gap-2 {
            gap: 20px;
        }
        .flex-center {
            display: flex;
            align-items: center;
            justify-content: center;
        }
        .w-full {
            width: 100%;
        }

/* roulang page: article */
/* ===== 设计变量 ===== */
        :root {
            --primary: #E74C3C;
            --primary-dark: #C0392B;
            --primary-light: #FF6B6B;
            --secondary: #F39C12;
            --accent: #2ECC71;
            --bg-dark: #0B0F1A;
            --bg-card: #131B2E;
            --bg-card-hover: #1A2540;
            --bg-section: #0F1524;
            --text: #FFFFFF;
            --text-muted: #8896AB;
            --text-light: #B0BCCE;
            --border: #1E2A45;
            --border-light: #2A3A5A;
            --radius: 12px;
            --radius-sm: 8px;
            --radius-lg: 20px;
            --shadow: 0 8px 32px rgba(0,0,0,0.3);
            --shadow-hover: 0 12px 48px rgba(231,76,60,0.15);
            --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --font-sans: 'Segoe UI', system-ui, -apple-system, sans-serif;
            --container: 1200px;
            --header-h: 72px;
        }

        /* ===== Reset & Base ===== */
        *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
        html { scroll-behavior: smooth; -webkit-font-smoothing: antialiased; }
        body {
            font-family: var(--font-sans);
            background: var(--bg-dark);
            color: var(--text);
            line-height: 1.7;
            overflow-x: hidden;
        }
        a { color: var(--primary); text-decoration: none; transition: var(--transition); }
        a:hover { color: var(--primary-light); }
        img { max-width: 100%; height: auto; display: block; }
        ul, ol { list-style: none; }
        button, input, textarea { font-family: inherit; outline: none; border: none; }
        .container {
            max-width: var(--container);
            margin: 0 auto;
            padding: 0 24px;
        }

        /* ===== 导航 ===== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            background: rgba(11,15,26,0.92);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid var(--border);
            height: var(--header-h);
            transition: var(--transition);
        }
        .site-header.scrolled { background: rgba(11,15,26,0.98); box-shadow: 0 4px 30px rgba(0,0,0,0.4); }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: var(--header-h);
        }
        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--text);
            letter-spacing: -0.5px;
        }
        .logo:hover { color: var(--text); }
        .logo-icon {
            width: 40px; height: 40px;
            background: linear-gradient(135deg, var(--primary), var(--secondary));
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.2rem;
            color: #fff;
            box-shadow: 0 4px 12px rgba(231,76,60,0.3);
        }
        .nav-list {
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .nav-list a {
            color: var(--text-light);
            font-size: 0.95rem;
            font-weight: 500;
            padding: 8px 18px;
            border-radius: var(--radius-sm);
            transition: var(--transition);
            position: relative;
        }
        .nav-list a:hover { color: var(--text); background: rgba(255,255,255,0.05); }
        .nav-list a.active {
            color: var(--text);
            background: rgba(231,76,60,0.15);
        }
        .nav-list a.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 50%;
            transform: translateX(-50%);
            width: 20px;
            height: 3px;
            background: var(--primary);
            border-radius: 2px;
        }
        .nav-cta { margin-left: 12px; }
        .nav-toggle {
            display: none;
            background: none;
            color: var(--text);
            font-size: 1.5rem;
            cursor: pointer;
            padding: 8px 12px;
            border-radius: var(--radius-sm);
            transition: var(--transition);
        }
        .nav-toggle:hover { background: rgba(255,255,255,0.05); }

        /* ===== 按钮 ===== */
        .btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 28px;
            border-radius: var(--radius-sm);
            font-weight: 600;
            font-size: 0.95rem;
            cursor: pointer;
            transition: var(--transition);
            border: 2px solid transparent;
            text-align: center;
            justify-content: center;
        }
        .btn-primary {
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            color: #fff;
            border-color: var(--primary);
        }
        .btn-primary:hover { background: linear-gradient(135deg, var(--primary-dark), var(--primary)); color: #fff; transform: translateY(-2px); box-shadow: 0 8px 24px rgba(231,76,60,0.35); }
        .btn-outline {
            background: transparent;
            color: var(--text);
            border-color: var(--border-light);
        }
        .btn-outline:hover { background: rgba(255,255,255,0.05); border-color: var(--primary); color: var(--primary); transform: translateY(-2px); }
        .btn-sm { padding: 8px 20px; font-size: 0.85rem; }
        .btn-lg { padding: 16px 36px; font-size: 1.05rem; }

        /* ===== Hero / Banner ===== */
        .article-hero {
            padding: 140px 0 60px;
            background: linear-gradient(135deg, rgba(11,15,26,0.92), rgba(19,27,46,0.85)), url('/assets/images/backpic/back-1.png') center/cover no-repeat;
            position: relative;
            border-bottom: 1px solid var(--border);
        }
        .article-hero::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            height: 120px;
            background: linear-gradient(to top, var(--bg-dark), transparent);
        }
        .article-hero .container { position: relative; z-index: 2; }
        .article-hero .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 0.85rem;
            color: var(--text-muted);
            margin-bottom: 20px;
            flex-wrap: wrap;
        }
        .article-hero .breadcrumb a { color: var(--text-muted); }
        .article-hero .breadcrumb a:hover { color: var(--primary); }
        .article-hero .breadcrumb span { color: var(--text-light); }
        .article-hero .breadcrumb i { font-size: 0.7rem; color: var(--text-muted); }
        .article-hero .post-category {
            display: inline-block;
            background: rgba(231,76,60,0.2);
            color: var(--primary-light);
            padding: 4px 14px;
            border-radius: 20px;
            font-size: 0.8rem;
            font-weight: 600;
            margin-bottom: 14px;
            border: 1px solid rgba(231,76,60,0.3);
        }
        .article-hero h1 {
            font-size: 2.6rem;
            font-weight: 800;
            line-height: 1.25;
            color: var(--text);
            max-width: 900px;
            letter-spacing: -0.5px;
        }
        .article-hero .post-meta {
            display: flex;
            align-items: center;
            gap: 20px;
            margin-top: 18px;
            flex-wrap: wrap;
            color: var(--text-muted);
            font-size: 0.9rem;
        }
        .article-hero .post-meta span { display: flex; align-items: center; gap: 6px; }
        .article-hero .post-meta i { color: var(--primary); }

        /* ===== 文章正文 ===== */
        .article-content-section {
            padding: 50px 0 60px;
            background: var(--bg-dark);
        }
        .article-content-wrapper {
            max-width: 860px;
            margin: 0 auto;
        }
        .article-body {
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            padding: 48px 52px;
            border: 1px solid var(--border);
            box-shadow: var(--shadow);
        }
        .article-body p {
            font-size: 1.05rem;
            line-height: 1.9;
            color: var(--text-light);
            margin-bottom: 1.4em;
        }
        .article-body h2, .article-body h3 {
            color: var(--text);
            margin-top: 1.8em;
            margin-bottom: 0.6em;
            font-weight: 700;
            letter-spacing: -0.3px;
        }
        .article-body h2 { font-size: 1.6rem; }
        .article-body h3 { font-size: 1.25rem; }
        .article-body ul, .article-body ol {
            margin: 1em 0;
            padding-left: 24px;
            color: var(--text-light);
        }
        .article-body ul li, .article-body ol li { margin-bottom: 0.5em; list-style: disc; }
        .article-body ol li { list-style: decimal; }
        .article-body a { color: var(--primary-light); text-decoration: underline; }
        .article-body a:hover { color: var(--primary); }
        .article-body img { border-radius: var(--radius-sm); margin: 1.5em 0; box-shadow: var(--shadow); }
        .article-body blockquote {
            border-left: 4px solid var(--primary);
            padding: 16px 24px;
            background: rgba(231,76,60,0.06);
            border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
            margin: 1.5em 0;
            color: var(--text-light);
            font-style: italic;
        }
        .article-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            margin-top: 36px;
            padding-top: 24px;
            border-top: 1px solid var(--border);
        }
        .article-tags .tag {
            background: rgba(255,255,255,0.05);
            color: var(--text-muted);
            padding: 5px 16px;
            border-radius: 20px;
            font-size: 0.82rem;
            border: 1px solid var(--border);
            transition: var(--transition);
        }
        .article-tags .tag:hover { background: rgba(231,76,60,0.12); color: var(--primary-light); border-color: rgba(231,76,60,0.3); }
        .article-not-found {
            text-align: center;
            padding: 80px 20px;
        }
        .article-not-found i { font-size: 4rem; color: var(--text-muted); margin-bottom: 20px; }
        .article-not-found h2 { font-size: 1.8rem; color: var(--text); margin-bottom: 12px; }
        .article-not-found p { color: var(--text-muted); margin-bottom: 24px; }

        /* ===== 相关推荐 ===== */
        .related-section {
            padding: 60px 0;
            background: var(--bg-section);
        }
        .related-section .section-title {
            font-size: 1.8rem;
            font-weight: 700;
            margin-bottom: 36px;
            text-align: center;
        }
        .related-section .section-title span { color: var(--primary); }
        .related-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .related-card {
            background: var(--bg-card);
            border-radius: var(--radius);
            overflow: hidden;
            border: 1px solid var(--border);
            transition: var(--transition);
        }
        .related-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-hover); border-color: rgba(231,76,60,0.2); }
        .related-card .card-img {
            width: 100%;
            height: 200px;
            object-fit: cover;
            display: block;
            transition: var(--transition);
        }
        .related-card:hover .card-img { transform: scale(1.03); }
        .related-card .card-body { padding: 20px 22px 24px; }
        .related-card .card-body .card-cat {
            font-size: 0.75rem;
            color: var(--primary);
            font-weight: 600;
            text-transform: uppercase;
            letter-spacing: 0.5px;
        }
        .related-card .card-body h3 { font-size: 1.1rem; font-weight: 700; margin: 8px 0 10px; line-height: 1.4; }
        .related-card .card-body h3 a { color: var(--text); }
        .related-card .card-body h3 a:hover { color: var(--primary); }
        .related-card .card-body .card-excerpt {
            color: var(--text-muted);
            font-size: 0.88rem;
            line-height: 1.6;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .related-card .card-body .card-date {
            font-size: 0.8rem;
            color: var(--text-muted);
            margin-top: 12px;
            display: flex;
            align-items: center;
            gap: 6px;
        }

        /* ===== FAQ ===== */
        .faq-section {
            padding: 60px 0;
            background: var(--bg-dark);
        }
        .faq-section .section-title {
            font-size: 1.8rem;
            font-weight: 700;
            text-align: center;
            margin-bottom: 12px;
        }
        .faq-section .section-sub {
            text-align: center;
            color: var(--text-muted);
            margin-bottom: 40px;
            font-size: 1rem;
        }
        .faq-list {
            max-width: 820px;
            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(--border-light); }
        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 18px 24px;
            cursor: pointer;
            font-weight: 600;
            font-size: 1rem;
            color: var(--text);
            gap: 16px;
            user-select: none;
            transition: var(--transition);
        }
        .faq-question:hover { background: rgba(255,255,255,0.02); }
        .faq-question i { color: var(--primary); transition: var(--transition); font-size: 0.9rem; }
        .faq-item.active .faq-question i { transform: rotate(180deg); }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease, padding 0.3s ease;
            padding: 0 24px;
            color: var(--text-muted);
            font-size: 0.95rem;
            line-height: 1.7;
        }
        .faq-item.active .faq-answer {
            max-height: 300px;
            padding: 0 24px 20px;
        }

        /* ===== CTA ===== */
        .cta-section {
            padding: 70px 0;
            background: linear-gradient(135deg, rgba(231,76,60,0.08), rgba(19,27,46,0.9)), url('/assets/images/backpic/back-2.png') center/cover no-repeat;
            border-top: 1px solid var(--border);
            border-bottom: 1px solid var(--border);
            text-align: center;
        }
        .cta-section h2 {
            font-size: 2rem;
            font-weight: 700;
            margin-bottom: 14px;
        }
        .cta-section p {
            color: var(--text-muted);
            max-width: 600px;
            margin: 0 auto 28px;
            font-size: 1.05rem;
        }
        .cta-section .btn-group { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; }

        /* ===== 页脚 ===== */
        .site-footer {
            background: #080C16;
            padding: 60px 0 0;
            border-top: 1px solid var(--border);
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.6fr 1fr 1fr 1.2fr;
            gap: 40px;
            padding-bottom: 40px;
            border-bottom: 1px solid var(--border);
        }
        .footer-brand .logo { font-size: 1.3rem; margin-bottom: 14px; }
        .footer-brand p { color: var(--text-muted); font-size: 0.9rem; line-height: 1.7; max-width: 320px; }
        .footer-col h4 { font-size: 1rem; font-weight: 700; margin-bottom: 18px; color: var(--text); }
        .footer-col a {
            display: block;
            color: var(--text-muted);
            font-size: 0.9rem;
            padding: 5px 0;
            transition: var(--transition);
        }
        .footer-col a:hover { color: var(--primary); padding-left: 4px; }
        .footer-social { display: flex; gap: 14px; }
        .footer-social a {
            width: 40px; height: 40px;
            display: flex;
            align-items: center;
            justify-content: center;
            background: rgba(255,255,255,0.05);
            border-radius: var(--radius-sm);
            color: var(--text-muted);
            font-size: 1.1rem;
            padding: 0;
            border: 1px solid var(--border);
        }
        .footer-social a:hover { background: rgba(231,76,60,0.15); color: var(--primary); border-color: rgba(231,76,60,0.3); padding: 0; }
        .footer-bottom {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 20px 0;
            flex-wrap: wrap;
            gap: 12px;
            color: var(--text-muted);
            font-size: 0.82rem;
        }
        .footer-bottom a { color: var(--text-muted); }
        .footer-bottom a:hover { color: var(--primary); }

        /* ===== 响应式 ===== */
        @media (max-width: 1024px) {
            .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
            .related-grid { grid-template-columns: repeat(2, 1fr); }
            .article-hero h1 { font-size: 2.2rem; }
        }
        @media (max-width: 768px) {
            :root { --header-h: 64px; }
            .nav-list { display: none; }
            .nav-list.open {
                display: flex;
                flex-direction: column;
                position: absolute;
                top: var(--header-h);
                left: 0;
                right: 0;
                background: rgba(11,15,26,0.98);
                backdrop-filter: blur(20px);
                padding: 20px 24px;
                gap: 6px;
                border-bottom: 1px solid var(--border);
                box-shadow: 0 20px 40px rgba(0,0,0,0.5);
            }
            .nav-list.open a { padding: 12px 18px; font-size: 1rem; }
            .nav-list.open .nav-cta { margin-left: 0; margin-top: 8px; }
            .nav-toggle { display: block; }
            .article-hero { padding: 110px 0 40px; }
            .article-hero h1 { font-size: 1.7rem; }
            .article-body { padding: 28px 24px; }
            .article-body p { font-size: 0.98rem; }
            .related-grid { grid-template-columns: 1fr; }
            .footer-grid { grid-template-columns: 1fr; gap: 28px; }
            .footer-bottom { flex-direction: column; text-align: center; }
            .cta-section h2 { font-size: 1.5rem; }
            .article-hero .post-meta { gap: 12px; font-size: 0.82rem; }
        }
        @media (max-width: 520px) {
            .container { padding: 0 16px; }
            .article-hero h1 { font-size: 1.4rem; }
            .article-body { padding: 20px 16px; border-radius: var(--radius); }
            .btn-lg { padding: 14px 24px; font-size: 0.95rem; }
            .article-tags .tag { font-size: 0.75rem; padding: 4px 12px; }
        }

        /* ===== 工具类 ===== */
        .text-center { text-align: center; }
        .mb-20 { margin-bottom: 20px; }
        .mt-20 { margin-top: 20px; }
        .gap-16 { gap: 16px; }
        .flex-center { display: flex; align-items: center; justify-content: center; }