/* roulang page: index */
/* ===== Design Variables ===== */
        :root {
            --primary: #1a2a6c;
            --primary-light: #2d4a8e;
            --primary-dark: #0f1a45;
            --accent: #f5a623;
            --accent-light: #ffc857;
            --accent-dark: #d4891a;
            --bg-body: #f8f9fc;
            --bg-alt: #ffffff;
            --bg-card: #ffffff;
            --bg-dark: #0f1a45;
            --text-primary: #1a1a2e;
            --text-secondary: #4a4a6a;
            --text-muted: #8a8aaa;
            --text-white: #ffffff;
            --border-color: #e8ecf4;
            --border-light: #f0f2f8;
            --radius-sm: 6px;
            --radius-md: 12px;
            --radius-lg: 20px;
            --radius-xl: 28px;
            --shadow-sm: 0 2px 8px rgba(26,42,108,0.06);
            --shadow-md: 0 6px 24px rgba(26,42,108,0.10);
            --shadow-lg: 0 16px 48px rgba(26,42,108,0.14);
            --shadow-accent: 0 6px 24px rgba(245,166,35,0.30);
            --transition: 0.25s ease;
            --font-sans: 'Inter', system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif;
            --container-max: 1280px;
            --navbar-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: 1.6;
            color: var(--text-primary);
            background: var(--bg-body);
        }
        a { color: var(--primary-light); text-decoration: none; transition: color var(--transition); }
        a:hover { color: var(--primary); }
        img { max-width: 100%; height: auto; display: block; }
        button, input, select, textarea { font-family: inherit; font-size: inherit; }
        ul, ol { list-style: none; }
        h1, h2, h3, h4, h5, h6 { font-weight: 700; line-height: 1.3; color: var(--text-primary); }

        /* ===== Container ===== */
        .container { max-width: var(--container-max); margin: 0 auto; padding: 0 24px; }
        @media (max-width: 768px) { .container { padding: 0 16px; } }

        /* ===== Header & Navigation ===== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1050;
            background: rgba(255,255,255,0.92);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border-color);
            height: var(--navbar-height);
            display: flex;
            align-items: center;
            transition: box-shadow var(--transition);
        }
        .site-header.scrolled { box-shadow: var(--shadow-sm); }
        .site-header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            width: 100%;
        }
        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 22px;
            font-weight: 800;
            color: var(--primary);
            letter-spacing: -0.3px;
        }
        .logo i { color: var(--accent); font-size: 26px; }
        .logo span { background: linear-gradient(135deg, var(--primary), var(--primary-light)); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
        .logo:hover { color: var(--primary); }

        .nav-list {
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .nav-list .nav-link {
            padding: 8px 18px;
            border-radius: var(--radius-sm);
            font-weight: 500;
            font-size: 15px;
            color: var(--text-secondary);
            transition: all var(--transition);
            position: relative;
        }
        .nav-list .nav-link:hover { color: var(--primary); background: rgba(26,42,108,0.05); }
        .nav-list .nav-link.active {
            color: var(--primary);
            background: rgba(26,42,108,0.08);
            font-weight: 600;
        }
        .nav-list .nav-link.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 18px;
            right: 18px;
            height: 3px;
            background: var(--accent);
            border-radius: 3px;
        }
        .nav-cta {
            background: linear-gradient(135deg, var(--primary), var(--primary-light)) !important;
            color: #fff !important;
            padding: 8px 22px !important;
            border-radius: var(--radius-sm) !important;
            font-weight: 600 !important;
            box-shadow: var(--shadow-sm);
        }
        .nav-cta:hover { transform: translateY(-1px); box-shadow: var(--shadow-md); color: #fff !important; }

        .navbar-toggler {
            border: none;
            background: transparent;
            font-size: 24px;
            color: var(--text-primary);
            padding: 4px 8px;
            display: none;
            cursor: pointer;
        }
        .navbar-toggler:focus { outline: 2px solid var(--accent); outline-offset: 2px; border-radius: 4px; }

        @media (max-width: 768px) {
            .navbar-toggler { display: block; }
            .nav-list {
                display: none;
                position: absolute;
                top: var(--navbar-height);
                left: 0;
                right: 0;
                background: rgba(255,255,255,0.98);
                backdrop-filter: blur(12px);
                flex-direction: column;
                padding: 16px 24px 24px;
                border-bottom: 1px solid var(--border-color);
                box-shadow: var(--shadow-md);
                gap: 4px;
            }
            .nav-list.open { display: flex; }
            .nav-list .nav-link { padding: 12px 16px; width: 100%; border-radius: var(--radius-sm); }
            .nav-list .nav-link.active::after { display: none; }
            .nav-list .nav-link.active { background: rgba(26,42,108,0.08); }
            .nav-cta { text-align: center; }
        }

        /* ===== Hero ===== */
        .hero {
            padding: 80px 0 72px;
            background: linear-gradient(135deg, var(--bg-body) 0%, #eef1fa 100%);
            position: relative;
            overflow: hidden;
        }
        .hero::before {
            content: '';
            position: absolute;
            top: -30%;
            right: -10%;
            width: 600px;
            height: 600px;
            background: radial-gradient(circle, rgba(26,42,108,0.06) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }
        .hero::after {
            content: '';
            position: absolute;
            bottom: -20%;
            left: -10%;
            width: 500px;
            height: 500px;
            background: radial-gradient(circle, rgba(245,166,35,0.06) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }
        .hero .container { position: relative; z-index: 1; }
        .hero-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
            align-items: center;
        }
        .hero-content h1 {
            font-size: 48px;
            font-weight: 800;
            letter-spacing: -0.5px;
            line-height: 1.2;
            margin-bottom: 16px;
            color: var(--primary);
        }
        .hero-content h1 .highlight { color: var(--accent); }
        .hero-content .lead {
            font-size: 18px;
            color: var(--text-secondary);
            margin-bottom: 28px;
            max-width: 520px;
        }
        .hero-badges { display: flex; gap: 12px; flex-wrap: wrap; margin-bottom: 28px; }
        .hero-badges .badge {
            background: rgba(26,42,108,0.08);
            color: var(--primary);
            padding: 6px 16px;
            border-radius: 20px;
            font-size: 13px;
            font-weight: 500;
        }
        .hero-badges .badge i { margin-right: 6px; color: var(--accent); }
        .hero-actions { display: flex; gap: 16px; flex-wrap: wrap; }
        .hero-actions .btn {
            padding: 14px 36px;
            border-radius: var(--radius-sm);
            font-weight: 600;
            font-size: 16px;
            transition: all var(--transition);
            border: none;
            display: inline-flex;
            align-items: center;
            gap: 10px;
        }
        .hero-actions .btn-primary {
            background: linear-gradient(135deg, var(--primary), var(--primary-light));
            color: #fff;
            box-shadow: var(--shadow-md);
        }
        .hero-actions .btn-primary:hover { transform: translateY(-2px); box-shadow: var(--shadow-lg); color: #fff; }
        .hero-actions .btn-outline {
            background: transparent;
            color: var(--primary);
            border: 2px solid var(--primary);
        }
        .hero-actions .btn-outline:hover { background: var(--primary); color: #fff; transform: translateY(-2px); }

        .hero-visual {
            display: flex;
            justify-content: center;
            align-items: center;
        }
        .hero-card {
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            padding: 36px 32px;
            box-shadow: var(--shadow-lg);
            width: 100%;
            max-width: 440px;
            border: 1px solid var(--border-color);
        }
        .hero-card .card-icon {
            font-size: 48px;
            color: var(--accent);
            margin-bottom: 12px;
        }
        .hero-card h3 { font-size: 20px; margin-bottom: 8px; }
        .hero-card p { color: var(--text-secondary); font-size: 14px; margin-bottom: 16px; }
        .hero-card .feature-list { display: flex; flex-direction: column; gap: 10px; }
        .hero-card .feature-list li {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 14px;
            color: var(--text-secondary);
        }
        .hero-card .feature-list li i { color: var(--accent); width: 18px; }

        @media (max-width: 1024px) {
            .hero-content h1 { font-size: 38px; }
        }
        @media (max-width: 768px) {
            .hero { padding: 48px 0 40px; }
            .hero-grid { grid-template-columns: 1fr; gap: 32px; }
            .hero-content h1 { font-size: 30px; }
            .hero-content .lead { font-size: 16px; }
            .hero-actions .btn { padding: 12px 24px; font-size: 15px; }
            .hero-card { padding: 24px 20px; }
        }
        @media (max-width: 520px) {
            .hero-content h1 { font-size: 26px; }
        }

        /* ===== Section Common ===== */
        .section { padding: 72px 0; }
        .section-alt { background: var(--bg-alt); }
        .section-dark { background: var(--bg-dark); color: var(--text-white); }
        .section-header { text-align: center; margin-bottom: 48px; }
        .section-header h2 {
            font-size: 34px;
            font-weight: 800;
            margin-bottom: 12px;
            color: var(--text-primary);
        }
        .section-header p {
            font-size: 17px;
            color: var(--text-secondary);
            max-width: 640px;
            margin: 0 auto;
        }
        .section-dark .section-header h2 { color: #fff; }
        .section-dark .section-header p { color: rgba(255,255,255,0.7); }
        .section-header .subtitle {
            display: inline-block;
            background: rgba(245,166,35,0.12);
            color: var(--accent-dark);
            padding: 4px 16px;
            border-radius: 20px;
            font-size: 13px;
            font-weight: 600;
            margin-bottom: 8px;
        }

        @media (max-width: 768px) {
            .section { padding: 48px 0; }
            .section-header { margin-bottom: 32px; }
            .section-header h2 { font-size: 26px; }
            .section-header p { font-size: 15px; }
        }

        /* ===== Features ===== */
        .features-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .feature-card {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            padding: 32px 24px;
            border: 1px solid var(--border-color);
            transition: all var(--transition);
            text-align: center;
        }
        .feature-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); border-color: transparent; }
        .feature-card .icon {
            width: 56px;
            height: 56px;
            border-radius: 16px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 24px;
            margin: 0 auto 16px;
            background: rgba(26,42,108,0.08);
            color: var(--primary);
        }
        .feature-card:nth-child(2) .icon { background: rgba(245,166,35,0.12); color: var(--accent); }
        .feature-card:nth-child(3) .icon { background: rgba(26,42,108,0.08); color: var(--primary); }
        .feature-card h3 { font-size: 18px; margin-bottom: 8px; }
        .feature-card p { font-size: 14px; color: var(--text-secondary); }

        @media (max-width: 768px) {
            .features-grid { grid-template-columns: 1fr 1fr; gap: 16px; }
            .feature-card { padding: 24px 16px; }
        }
        @media (max-width: 520px) {
            .features-grid { grid-template-columns: 1fr; }
        }

        /* ===== Categories ===== */
        .categories-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 28px;
        }
        .category-card {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            padding: 32px 28px;
            border: 1px solid var(--border-color);
            transition: all var(--transition);
            display: flex;
            flex-direction: column;
        }
        .category-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); border-color: transparent; }
        .category-card .cat-icon {
            width: 48px;
            height: 48px;
            border-radius: 14px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 22px;
            background: rgba(26,42,108,0.08);
            color: var(--primary);
            margin-bottom: 16px;
        }
        .category-card:nth-child(2) .cat-icon { background: rgba(245,166,35,0.12); color: var(--accent); }
        .category-card h3 { font-size: 20px; margin-bottom: 8px; }
        .category-card p { font-size: 14px; color: var(--text-secondary); margin-bottom: 16px; flex: 1; }
        .category-card .cat-tags { display: flex; gap: 8px; flex-wrap: wrap; margin-bottom: 16px; }
        .category-card .cat-tags span {
            background: var(--bg-body);
            color: var(--text-secondary);
            padding: 4px 12px;
            border-radius: 12px;
            font-size: 12px;
        }
        .category-card .btn {
            align-self: flex-start;
            padding: 8px 24px;
            border-radius: var(--radius-sm);
            font-weight: 600;
            font-size: 14px;
            background: var(--primary);
            color: #fff;
            border: none;
            transition: all var(--transition);
        }
        .category-card .btn:hover { background: var(--primary-light); transform: translateY(-1px); }

        @media (max-width: 768px) {
            .categories-grid { grid-template-columns: 1fr; gap: 20px; }
            .category-card { padding: 24px 20px; }
        }

        /* ===== Posts / News ===== */
        .posts-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 20px;
        }
        .post-card {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            padding: 24px;
            border: 1px solid var(--border-color);
            transition: all var(--transition);
        }
        .post-card:hover { transform: translateY(-2px); box-shadow: var(--shadow-sm); border-color: var(--border-light); }
        .post-card .meta {
            display: flex;
            align-items: center;
            gap: 12px;
            font-size: 13px;
            color: var(--text-muted);
            margin-bottom: 8px;
        }
        .post-card .meta .cat {
            background: rgba(26,42,108,0.08);
            color: var(--primary);
            padding: 2px 12px;
            border-radius: 12px;
            font-weight: 500;
        }
        .post-card h3 { font-size: 17px; margin-bottom: 8px; font-weight: 600; }
        .post-card h3 a { color: var(--text-primary); }
        .post-card h3 a:hover { color: var(--primary); }
        .post-card p { font-size: 14px; color: var(--text-secondary); display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
        .post-empty {
            grid-column: 1 / -1;
            text-align: center;
            padding: 48px 24px;
            color: var(--text-muted);
            font-size: 15px;
            background: var(--bg-card);
            border-radius: var(--radius-md);
            border: 1px dashed var(--border-color);
        }
        .post-empty i { font-size: 36px; display: block; margin-bottom: 12px; color: var(--border-color); }

        @media (max-width: 768px) {
            .posts-grid { grid-template-columns: 1fr; }
        }

        /* ===== Stats / Numbers ===== */
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            text-align: center;
        }
        .stat-item .number {
            font-size: 42px;
            font-weight: 800;
            color: var(--accent);
            line-height: 1.1;
        }
        .stat-item .label { font-size: 15px; color: rgba(255,255,255,0.75); margin-top: 6px; }

        @media (max-width: 768px) {
            .stats-grid { grid-template-columns: repeat(2, 1fr); gap: 20px; }
            .stat-item .number { font-size: 32px; }
        }

        /* ===== 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-md);
            border: 1px solid var(--border-color);
            overflow: hidden;
            transition: all var(--transition);
        }
        .faq-item:hover { border-color: var(--border-light); }
        .faq-question {
            width: 100%;
            padding: 18px 24px;
            background: transparent;
            border: none;
            text-align: left;
            font-size: 16px;
            font-weight: 600;
            color: var(--text-primary);
            display: flex;
            justify-content: space-between;
            align-items: center;
            cursor: pointer;
            transition: background var(--transition);
        }
        .faq-question:hover { background: rgba(26,42,108,0.02); }
        .faq-question:focus { outline: 2px solid var(--accent); outline-offset: -2px; }
        .faq-question i { transition: transform var(--transition); color: var(--text-muted); font-size: 14px; }
        .faq-item.open .faq-question i { transform: rotate(180deg); color: var(--primary); }
        .faq-answer {
            padding: 0 24px 18px;
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.7;
            display: none;
        }
        .faq-item.open .faq-answer { display: block; }

        @media (max-width: 768px) {
            .faq-question { padding: 14px 16px; font-size: 15px; }
            .faq-answer { padding: 0 16px 14px; font-size: 14px; }
        }

        /* ===== CTA ===== */
        .cta-box {
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            border-radius: var(--radius-lg);
            padding: 56px 48px;
            text-align: center;
            color: #fff;
        }
        .cta-box h2 { font-size: 32px; font-weight: 800; margin-bottom: 12px; color: #fff; }
        .cta-box p { font-size: 17px; opacity: 0.85; margin-bottom: 28px; max-width: 560px; margin-left: auto; margin-right: auto; }
        .cta-box .btn {
            padding: 14px 40px;
            border-radius: var(--radius-sm);
            font-weight: 700;
            font-size: 17px;
            background: var(--accent);
            color: var(--primary-dark);
            border: none;
            transition: all var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 10px;
        }
        .cta-box .btn:hover { background: var(--accent-light); transform: translateY(-2px); box-shadow: var(--shadow-accent); color: var(--primary-dark); }

        @media (max-width: 768px) {
            .cta-box { padding: 36px 24px; }
            .cta-box h2 { font-size: 24px; }
            .cta-box p { font-size: 15px; }
            .cta-box .btn { padding: 12px 28px; font-size: 15px; }
        }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--bg-dark);
            color: rgba(255,255,255,0.7);
            padding: 48px 0 24px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 32px;
            margin-bottom: 32px;
        }
        .footer-brand .logo { color: #fff; margin-bottom: 12px; }
        .footer-brand .logo span { -webkit-text-fill-color: #fff; }
        .footer-brand .logo i { color: var(--accent); }
        .footer-brand p { font-size: 14px; max-width: 320px; }
        .footer-col h4 { color: #fff; font-size: 16px; margin-bottom: 16px; font-weight: 600; }
        .footer-col ul li { margin-bottom: 8px; }
        .footer-col ul li a { color: rgba(255,255,255,0.6); font-size: 14px; transition: color var(--transition); }
        .footer-col ul li a:hover { color: var(--accent); }
        .footer-bottom {
            border-top: 1px solid rgba(255,255,255,0.08);
            padding-top: 20px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 12px;
            font-size: 13px;
        }
        .footer-bottom a { color: rgba(255,255,255,0.5); }
        .footer-bottom a:hover { color: var(--accent); }

        @media (max-width: 768px) {
            .footer-grid { grid-template-columns: 1fr 1fr; gap: 24px; }
            .footer-brand { grid-column: 1 / -1; }
        }
        @media (max-width: 520px) {
            .footer-grid { grid-template-columns: 1fr; }
            .footer-bottom { flex-direction: column; text-align: center; }
        }

        /* ===== Utilities ===== */
        .text-accent { color: var(--accent); }
        .bg-accent-light { background: rgba(245,166,35,0.08); }
        .gap-2 { gap: 8px; }
        .gap-3 { gap: 16px; }
        .mt-2 { margin-top: 8px; }
        .mt-3 { margin-top: 16px; }
        .mt-4 { margin-top: 24px; }
        .mb-3 { margin-bottom: 16px; }
        .mb-4 { margin-bottom: 24px; }
        .text-center { text-align: center; }

/* roulang page: category1 */
/* ===== 设计变量 ===== */
        :root {
            --primary: #0d6efd;
            --primary-dark: #0b5ed7;
            --primary-light: #e8f0fe;
            --primary-gradient: linear-gradient(135deg, #0d6efd 0%, #6610f2 100%);
            --secondary: #6c757d;
            --accent: #fd7e14;
            --accent-light: #fff3e6;
            --success: #198754;
            --info: #0dcaf0;
            --dark: #1a1d23;
            --dark-soft: #2d323e;
            --gray-100: #f8f9fa;
            --gray-200: #e9ecef;
            --gray-300: #dee2e6;
            --gray-400: #ced4da;
            --gray-500: #adb5bd;
            --gray-600: #6c757d;
            --gray-700: #495057;
            --gray-800: #343a40;
            --body-bg: #f5f7fc;
            --card-bg: #ffffff;
            --text-primary: #1a1d23;
            --text-secondary: #495057;
            --text-muted: #6c757d;
            --border-color: #e2e8f0;
            --radius: 12px;
            --radius-sm: 8px;
            --radius-lg: 16px;
            --shadow: 0 2px 12px rgba(0, 0, 0, 0.06);
            --shadow-hover: 0 8px 30px rgba(0, 0, 0, 0.10);
            --shadow-card: 0 1px 4px rgba(0, 0, 0, 0.04);
            --transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
            --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
            --container-max: 1200px;
            --header-height: 70px;
        }

        /* ===== Reset & Base ===== */
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        body {
            font-family: var(--font-family);
            background: var(--body-bg);
            color: var(--text-primary);
            line-height: 1.6;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            padding-top: var(--header-height);
        }
        a {
            color: var(--primary);
            text-decoration: none;
            transition: var(--transition);
        }
        a:hover {
            color: var(--primary-dark);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
            border: none;
            outline: none;
        }
        ul,
        ol {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            font-weight: 700;
            line-height: 1.3;
            color: var(--text-primary);
            margin-bottom: 0.5rem;
        }
        p {
            margin-bottom: 0.75rem;
            color: var(--text-secondary);
        }
        .container {
            max-width: var(--container-max);
            padding-left: 20px;
            padding-right: 20px;
            margin: 0 auto;
        }

        /* ===== Header / Nav ===== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1050;
            height: var(--header-height);
            background: rgba(255, 255, 255, 0.92);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid rgba(0, 0, 0, 0.04);
            box-shadow: 0 2px 20px rgba(0, 0, 0, 0.04);
            transition: var(--transition);
        }
        .site-header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
        }
        .site-header .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.35rem;
            font-weight: 800;
            color: var(--dark);
            letter-spacing: -0.3px;
            flex-shrink: 0;
        }
        .site-header .logo i {
            font-size: 1.6rem;
            background: var(--primary-gradient);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .site-header .logo span {
            background: var(--primary-gradient);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .navbar-toggler {
            display: none;
            background: transparent;
            border: none;
            font-size: 1.6rem;
            color: var(--dark);
            cursor: pointer;
            padding: 4px 8px;
            border-radius: var(--radius-sm);
            transition: var(--transition);
        }
        .navbar-toggler:hover {
            background: var(--gray-100);
        }
        .nav-list {
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .nav-list .nav-link {
            position: relative;
            padding: 8px 16px;
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--text-secondary);
            border-radius: var(--radius-sm);
            transition: var(--transition);
            letter-spacing: 0.3px;
        }
        .nav-list .nav-link i {
            font-size: 0.85rem;
        }
        .nav-list .nav-link:hover {
            color: var(--primary);
            background: var(--primary-light);
        }
        .nav-list .nav-link.active {
            color: var(--primary);
            background: var(--primary-light);
            font-weight: 600;
        }
        .nav-list .nav-link.active::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 50%;
            transform: translateX(-50%);
            width: 20px;
            height: 3px;
            background: var(--primary);
            border-radius: 10px;
        }
        .nav-list .nav-cta {
            background: var(--primary-gradient);
            color: #fff !important;
            padding: 9px 22px;
            border-radius: 50px;
            font-weight: 600;
            box-shadow: 0 4px 14px rgba(13, 110, 253, 0.30);
            margin-left: 6px;
            letter-spacing: 0.5px;
        }
        .nav-list .nav-cta:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(13, 110, 253, 0.40);
            background: linear-gradient(135deg, #0b5ed7 0%, #5a0fd7 100%);
        }
        .nav-list .nav-cta i {
            margin-right: 6px;
        }

        /* ===== 移动端导航 ===== */
        @media (max-width: 768px) {
            .navbar-toggler {
                display: block;
                z-index: 1060;
            }
            .nav-list {
                position: fixed;
                top: 0;
                right: -100%;
                width: 280px;
                height: 100vh;
                background: #fff;
                flex-direction: column;
                align-items: stretch;
                padding: 80px 24px 30px;
                gap: 4px;
                box-shadow: -10px 0 40px rgba(0, 0, 0, 0.10);
                transition: right 0.35s cubic-bezier(0.4, 0, 0.2, 1);
                z-index: 1055;
                overflow-y: auto;
            }
            .nav-list.open {
                right: 0;
            }
            .nav-list .nav-link {
                padding: 12px 16px;
                font-size: 1rem;
                border-radius: var(--radius-sm);
            }
            .nav-list .nav-link.active::after {
                display: none;
            }
            .nav-list .nav-link.active {
                background: var(--primary-light);
                border-left: 4px solid var(--primary);
            }
            .nav-list .nav-cta {
                margin-top: 12px;
                text-align: center;
                padding: 12px 20px;
            }
            /* 遮罩层 */
            .nav-overlay {
                position: fixed;
                top: 0;
                left: 0;
                width: 100%;
                height: 100%;
                background: rgba(0, 0, 0, 0.35);
                z-index: 1052;
                opacity: 0;
                pointer-events: none;
                transition: opacity 0.3s;
            }
            .nav-overlay.show {
                opacity: 1;
                pointer-events: auto;
            }
        }

        /* ===== Hero / 分类横幅 ===== */
        .category-hero {
            position: relative;
            padding: 60px 0 50px;
            background: var(--primary-gradient);
            color: #fff;
            overflow: hidden;
        }
        .category-hero::before {
            content: '';
            position: absolute;
            top: -40%;
            right: -10%;
            width: 500px;
            height: 500px;
            background: rgba(255, 255, 255, 0.05);
            border-radius: 50%;
            pointer-events: none;
        }
        .category-hero::after {
            content: '';
            position: absolute;
            bottom: -30%;
            left: -5%;
            width: 400px;
            height: 400px;
            background: rgba(255, 255, 255, 0.04);
            border-radius: 50%;
            pointer-events: none;
        }
        .category-hero .container {
            position: relative;
            z-index: 2;
        }
        .category-hero h1 {
            font-size: 2.5rem;
            font-weight: 800;
            color: #fff;
            margin-bottom: 12px;
            letter-spacing: -0.5px;
        }
        .category-hero p {
            font-size: 1.1rem;
            color: rgba(255, 255, 255, 0.85);
            max-width: 640px;
            margin-bottom: 20px;
        }
        .category-hero .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(255, 255, 255, 0.15);
            backdrop-filter: blur(8px);
            padding: 6px 18px;
            border-radius: 50px;
            font-size: 0.85rem;
            color: #fff;
            margin-bottom: 18px;
            border: 1px solid rgba(255, 255, 255, 0.10);
        }
        .category-hero .hero-badge i {
            font-size: 0.8rem;
        }

        /* ===== 板块通用 ===== */
        .section-block {
            padding: 60px 0;
        }
        .section-block .section-title {
            font-size: 1.8rem;
            font-weight: 700;
            margin-bottom: 8px;
            letter-spacing: -0.3px;
        }
        .section-block .section-subtitle {
            font-size: 1rem;
            color: var(--text-muted);
            margin-bottom: 32px;
            max-width: 560px;
        }
        .section-divider {
            width: 50px;
            height: 4px;
            background: var(--primary-gradient);
            border-radius: 10px;
            margin-bottom: 24px;
        }

        /* ===== 卡片通用 ===== */
        .card-custom {
            background: var(--card-bg);
            border: 1px solid var(--border-color);
            border-radius: var(--radius);
            box-shadow: var(--shadow-card);
            transition: var(--transition);
            overflow: hidden;
        }
        .card-custom:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
            border-color: transparent;
        }
        .card-custom .card-img-top {
            width: 100%;
            height: 200px;
            object-fit: cover;
            border-bottom: 1px solid var(--border-color);
        }
        .card-custom .card-body {
            padding: 22px 20px 24px;
        }
        .card-custom .card-body .card-title {
            font-size: 1.15rem;
            font-weight: 700;
            margin-bottom: 8px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .card-custom .card-body .card-text {
            font-size: 0.92rem;
            color: var(--text-secondary);
            display: -webkit-box;
            -webkit-line-clamp: 3;
            -webkit-box-orient: vertical;
            overflow: hidden;
            margin-bottom: 14px;
        }
        .card-custom .card-body .card-meta {
            display: flex;
            align-items: center;
            justify-content: space-between;
            font-size: 0.82rem;
            color: var(--text-muted);
            padding-top: 12px;
            border-top: 1px solid var(--gray-100);
        }
        .card-custom .card-body .card-meta .tag {
            display: inline-block;
            background: var(--primary-light);
            color: var(--primary);
            padding: 2px 12px;
            border-radius: 50px;
            font-size: 0.75rem;
            font-weight: 600;
        }

        /* ===== 热门攻略卡片（特色样式） ===== */
        .guide-card {
            display: flex;
            gap: 20px;
            background: var(--card-bg);
            border: 1px solid var(--border-color);
            border-radius: var(--radius);
            padding: 20px;
            transition: var(--transition);
            box-shadow: var(--shadow-card);
        }
        .guide-card:hover {
            transform: translateY(-3px);
            box-shadow: var(--shadow-hover);
            border-color: transparent;
        }
        .guide-card .guide-num {
            flex-shrink: 0;
            width: 44px;
            height: 44px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.2rem;
            font-weight: 800;
            color: var(--primary);
            background: var(--primary-light);
            border-radius: var(--radius-sm);
        }
        .guide-card .guide-content {
            flex: 1;
            min-width: 0;
        }
        .guide-card .guide-content h4 {
            font-size: 1.05rem;
            font-weight: 700;
            margin-bottom: 5px;
        }
        .guide-card .guide-content p {
            font-size: 0.88rem;
            color: var(--text-secondary);
            margin-bottom: 6px;
        }
        .guide-card .guide-content .guide-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 6px;
        }
        .guide-card .guide-content .guide-tags span {
            background: var(--gray-100);
            color: var(--text-muted);
            padding: 2px 12px;
            border-radius: 50px;
            font-size: 0.72rem;
            font-weight: 500;
        }

        /* ===== 标签云 ===== */
        .tag-cloud {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
        }
        .tag-cloud .tag-item {
            display: inline-block;
            padding: 6px 20px;
            background: var(--card-bg);
            border: 1px solid var(--border-color);
            border-radius: 50px;
            font-size: 0.85rem;
            font-weight: 500;
            color: var(--text-secondary);
            transition: var(--transition);
            cursor: default;
        }
        .tag-cloud .tag-item:hover {
            background: var(--primary);
            color: #fff;
            border-color: var(--primary);
            transform: translateY(-2px);
            box-shadow: 0 4px 14px rgba(13, 110, 253, 0.25);
        }
        .tag-cloud .tag-item i {
            margin-right: 6px;
            font-size: 0.75rem;
        }

        /* ===== FAQ ===== */
        .faq-item {
            background: var(--card-bg);
            border: 1px solid var(--border-color);
            border-radius: var(--radius);
            padding: 20px 24px;
            margin-bottom: 12px;
            transition: var(--transition);
            box-shadow: var(--shadow-card);
        }
        .faq-item:hover {
            border-color: var(--primary);
            box-shadow: 0 4px 16px rgba(13, 110, 253, 0.08);
        }
        .faq-item .faq-q {
            font-weight: 700;
            font-size: 1.05rem;
            color: var(--text-primary);
            display: flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 6px;
        }
        .faq-item .faq-q i {
            color: var(--primary);
            font-size: 1.1rem;
        }
        .faq-item .faq-a {
            font-size: 0.95rem;
            color: var(--text-secondary);
            padding-left: 28px;
            line-height: 1.7;
        }

        /* ===== CTA ===== */
        .cta-block {
            background: var(--primary-gradient);
            border-radius: var(--radius-lg);
            padding: 48px 40px;
            text-align: center;
            color: #fff;
            position: relative;
            overflow: hidden;
        }
        .cta-block::before {
            content: '';
            position: absolute;
            top: -50%;
            right: -20%;
            width: 400px;
            height: 400px;
            background: rgba(255, 255, 255, 0.05);
            border-radius: 50%;
            pointer-events: none;
        }
        .cta-block h3 {
            font-size: 1.8rem;
            font-weight: 800;
            color: #fff;
            margin-bottom: 10px;
        }
        .cta-block p {
            font-size: 1.05rem;
            color: rgba(255, 255, 255, 0.85);
            max-width: 560px;
            margin: 0 auto 24px;
        }
        .cta-block .btn-cta {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            background: #fff;
            color: var(--primary);
            padding: 14px 36px;
            border-radius: 50px;
            font-weight: 700;
            font-size: 1rem;
            box-shadow: 0 6px 24px rgba(0, 0, 0, 0.15);
            transition: var(--transition);
        }
        .cta-block .btn-cta:hover {
            transform: translateY(-3px);
            box-shadow: 0 12px 36px rgba(0, 0, 0, 0.25);
            background: #f0f4ff;
        }

        /* ===== 页脚 ===== */
        .site-footer {
            background: var(--dark);
            color: rgba(255, 255, 255, 0.75);
            padding: 48px 0 28px;
            margin-top: 20px;
        }
        .site-footer .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 32px;
        }
        .site-footer .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.3rem;
            font-weight: 800;
            color: #fff;
            margin-bottom: 12px;
        }
        .site-footer .logo i {
            font-size: 1.5rem;
            background: var(--primary-gradient);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .site-footer .logo span {
            background: var(--primary-gradient);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .site-footer .footer-brand p {
            font-size: 0.9rem;
            color: rgba(255, 255, 255, 0.6);
            max-width: 320px;
            line-height: 1.7;
        }
        .site-footer .footer-col h4 {
            font-size: 0.95rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 16px;
            letter-spacing: 0.5px;
        }
        .site-footer .footer-col ul li {
            margin-bottom: 8px;
        }
        .site-footer .footer-col ul li a {
            color: rgba(255, 255, 255, 0.6);
            font-size: 0.88rem;
            transition: var(--transition);
        }
        .site-footer .footer-col ul li a:hover {
            color: #fff;
            padding-left: 4px;
        }
        .site-footer .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding-top: 20px;
            display: flex;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px;
            font-size: 0.82rem;
            color: rgba(255, 255, 255, 0.45);
        }
        .site-footer .footer-bottom a {
            color: rgba(255, 255, 255, 0.5);
        }
        .site-footer .footer-bottom a:hover {
            color: #fff;
        }

        /* ===== 排序 / 筛选条 ===== */
        .filter-bar {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 12px;
            margin-bottom: 28px;
            padding: 12px 0;
            border-bottom: 1px solid var(--border-color);
        }
        .filter-bar .filter-label {
            font-size: 0.88rem;
            font-weight: 600;
            color: var(--text-secondary);
            margin-right: 4px;
        }
        .filter-bar .filter-btn {
            padding: 5px 18px;
            border-radius: 50px;
            font-size: 0.82rem;
            font-weight: 500;
            color: var(--text-secondary);
            background: var(--card-bg);
            border: 1px solid var(--border-color);
            transition: var(--transition);
            cursor: pointer;
        }
        .filter-bar .filter-btn:hover {
            border-color: var(--primary);
            color: var(--primary);
        }
        .filter-bar .filter-btn.active {
            background: var(--primary);
            color: #fff;
            border-color: var(--primary);
        }
        .filter-bar .filter-btn i {
            margin-right: 6px;
            font-size: 0.75rem;
        }

        /* ===== 分页 ===== */
        .pagination-custom {
            display: flex;
            justify-content: center;
            gap: 8px;
            margin-top: 40px;
        }
        .pagination-custom .page-item {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            border-radius: var(--radius-sm);
            background: var(--card-bg);
            border: 1px solid var(--border-color);
            font-size: 0.88rem;
            font-weight: 500;
            color: var(--text-secondary);
            transition: var(--transition);
            cursor: pointer;
        }
        .pagination-custom .page-item:hover {
            border-color: var(--primary);
            color: var(--primary);
        }
        .pagination-custom .page-item.active {
            background: var(--primary);
            color: #fff;
            border-color: var(--primary);
        }
        .pagination-custom .page-item.disabled {
            opacity: 0.4;
            cursor: not-allowed;
        }

        /* ===== 响应式 ===== */
        @media (max-width: 1024px) {
            .site-footer .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 30px;
            }
            .category-hero h1 {
                font-size: 2rem;
            }
        }
        @media (max-width: 768px) {
            .category-hero {
                padding: 40px 0 36px;
            }
            .category-hero h1 {
                font-size: 1.7rem;
            }
            .category-hero p {
                font-size: 0.95rem;
            }
            .section-block {
                padding: 40px 0;
            }
            .section-block .section-title {
                font-size: 1.4rem;
            }
            .guide-card {
                flex-direction: column;
                gap: 12px;
                padding: 16px;
            }
            .guide-card .guide-num {
                width: 36px;
                height: 36px;
                font-size: 1rem;
            }
            .cta-block {
                padding: 36px 20px;
            }
            .cta-block h3 {
                font-size: 1.4rem;
            }
            .site-footer .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .site-footer .footer-bottom {
                flex-direction: column;
                align-items: center;
                text-align: center;
            }
            .filter-bar {
                gap: 8px;
            }
        }
        @media (max-width: 520px) {
            .category-hero h1 {
                font-size: 1.35rem;
            }
            .card-custom .card-img-top {
                height: 160px;
            }
            .section-block .section-title {
                font-size: 1.2rem;
            }
            .faq-item {
                padding: 16px 18px;
            }
            .faq-item .faq-q {
                font-size: 0.95rem;
            }
            .pagination-custom .page-item {
                width: 36px;
                height: 36px;
                font-size: 0.8rem;
            }
        }

        /* ===== 辅助 ===== */
        .text-gradient {
            background: var(--primary-gradient);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .bg-soft-primary {
            background: var(--primary-light);
        }
        .gap-2 {
            gap: 8px;
        }
        .gap-3 {
            gap: 16px;
        }
        .mb-1 {
            margin-bottom: 4px;
        }
        .mb-2 {
            margin-bottom: 8px;
        }
        .mb-3 {
            margin-bottom: 16px;
        }
        .mb-4 {
            margin-bottom: 24px;
        }
        .mb-5 {
            margin-bottom: 32px;
        }
        .mt-2 {
            margin-top: 8px;
        }
        .mt-3 {
            margin-top: 16px;
        }
        .mt-4 {
            margin-top: 24px;
        }

/* roulang page: article */
:root {
            --primary: #1a5276;
            --primary-light: #2e86c1;
            --primary-dark: #0e2f44;
            --accent: #f5a623;
            --accent-hover: #d48f1a;
            --bg-body: #ffffff;
            --bg-light: #f0f4f8;
            --bg-dark: #0e2f44;
            --text-dark: #1a1a2e;
            --text-muted: #5a6a7a;
            --text-light: #ffffff;
            --border-color: #e2e8f0;
            --radius-sm: 6px;
            --radius-md: 12px;
            --radius-lg: 20px;
            --shadow-sm: 0 1px 3px rgba(0,0,0,0.06);
            --shadow-md: 0 4px 16px rgba(0,0,0,0.08);
            --shadow-lg: 0 12px 40px rgba(0,0,0,0.12);
            --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
            --transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
        }
        *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
        html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
        body {
            font-family: var(--font-family);
            font-size: 1rem;
            line-height: 1.7;
            color: var(--text-dark);
            background: var(--bg-body);
            -webkit-font-smoothing: antialiased;
        }
        a { color: var(--primary-light); text-decoration: none; transition: color var(--transition); }
        a:hover { color: var(--accent); }
        img { max-width: 100%; height: auto; display: block; border-radius: var(--radius-sm); }
        .container { max-width: 1200px; padding: 0 20px; margin: 0 auto; }
        .container-narrow { max-width: 860px; padding: 0 20px; margin: 0 auto; }

        /* ===== 站点导航 ===== */
        .site-header {
            background: var(--bg-dark);
            padding: 0;
            position: sticky;
            top: 0;
            z-index: 1050;
            box-shadow: 0 2px 20px rgba(0,0,0,0.15);
            border-bottom: 1px solid rgba(255,255,255,0.06);
        }
        .site-header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 68px;
            gap: 20px;
        }
        .site-header .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            color: var(--text-light);
            font-size: 1.35rem;
            font-weight: 700;
            letter-spacing: 0.5px;
            white-space: nowrap;
            text-decoration: none;
        }
        .site-header .logo i { color: var(--accent); font-size: 1.5rem; }
        .site-header .logo:hover { color: var(--accent); }
        .navbar-toggler {
            display: none;
            background: none;
            border: 1px solid rgba(255,255,255,0.2);
            color: var(--text-light);
            font-size: 1.4rem;
            padding: 6px 12px;
            border-radius: var(--radius-sm);
            cursor: pointer;
            transition: background var(--transition);
        }
        .navbar-toggler:hover { background: rgba(255,255,255,0.1); }
        .nav-list {
            display: flex;
            align-items: center;
            gap: 6px;
            list-style: none;
        }
        .nav-link {
            display: flex;
            align-items: center;
            gap: 6px;
            padding: 8px 16px;
            color: rgba(255,255,255,0.8);
            font-size: 0.95rem;
            font-weight: 500;
            border-radius: var(--radius-sm);
            transition: all var(--transition);
            text-decoration: none;
            white-space: nowrap;
        }
        .nav-link i { font-size: 0.9rem; }
        .nav-link:hover { background: rgba(255,255,255,0.1); color: var(--text-light); }
        .nav-link.active, .nav-link.active:hover { background: var(--accent); color: #1a1a2e; font-weight: 600; }
        .nav-link.nav-cta {
            background: var(--accent);
            color: #1a1a2e;
            font-weight: 600;
            padding: 8px 20px;
            border-radius: 50px;
            margin-left: 8px;
        }
        .nav-link.nav-cta:hover { background: var(--accent-hover); color: #1a1a2e; transform: translateY(-1px); box-shadow: 0 4px 14px rgba(245,166,35,0.4); }

        /* ===== 文章 Hero ===== */
        .article-hero {
            background: linear-gradient(135deg, var(--bg-light) 0%, #e8f0fe 100%);
            padding: 48px 0 40px;
            border-bottom: 1px solid var(--border-color);
        }
        .article-hero .breadcrumb {
            background: transparent;
            padding: 0;
            margin: 0 0 20px 0;
            font-size: 0.9rem;
        }
        .article-hero .breadcrumb-item a { color: var(--primary-light); }
        .article-hero .breadcrumb-item.active { color: var(--text-muted); }
        .article-hero .breadcrumb-item + .breadcrumb-item::before { color: var(--text-muted); content: "/"; }
        .article-hero h1 {
            font-size: 2.4rem;
            font-weight: 800;
            line-height: 1.25;
            color: var(--primary-dark);
            margin: 0 0 18px 0;
            max-width: 900px;
        }
        .article-meta {
            display: flex;
            flex-wrap: wrap;
            gap: 24px;
            color: var(--text-muted);
            font-size: 0.95rem;
        }
        .article-meta i { margin-right: 6px; color: var(--primary-light); }
        .article-meta .badge-category {
            background: var(--primary-light);
            color: #fff;
            padding: 4px 14px;
            border-radius: 50px;
            font-size: 0.8rem;
            font-weight: 500;
        }

        /* ===== 文章正文区 ===== */
        .article-content-section {
            padding: 48px 0 40px;
            background: var(--bg-body);
        }
        .article-body {
            font-size: 1.1rem;
            line-height: 1.85;
            color: var(--text-dark);
        }
        .article-body h2, .article-body h3, .article-body h4 {
            margin-top: 36px;
            margin-bottom: 16px;
            font-weight: 700;
            color: var(--primary-dark);
        }
        .article-body h2 { font-size: 1.75rem; border-bottom: 2px solid var(--border-color); padding-bottom: 10px; }
        .article-body h3 { font-size: 1.4rem; }
        .article-body p { margin-bottom: 20px; }
        .article-body ul, .article-body ol { margin-bottom: 20px; padding-left: 24px; }
        .article-body li { margin-bottom: 8px; }
        .article-body img { border-radius: var(--radius-md); margin: 24px 0; box-shadow: var(--shadow-sm); }
        .article-body blockquote {
            border-left: 4px solid var(--accent);
            padding: 16px 24px;
            margin: 24px 0;
            background: var(--bg-light);
            border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
            font-style: italic;
            color: var(--text-muted);
        }
        .article-body a { color: var(--primary-light); text-decoration: underline; }
        .article-body a:hover { color: var(--accent); }

        /* 标签区 */
        .article-tags {
            padding: 28px 0 12px;
            border-top: 1px solid var(--border-color);
            margin-top: 32px;
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 10px;
        }
        .article-tags .tag-label { font-weight: 600; color: var(--text-muted); font-size: 0.9rem; }
        .article-tags .tag-item {
            display: inline-block;
            padding: 5px 16px;
            background: var(--bg-light);
            color: var(--text-muted);
            font-size: 0.85rem;
            border-radius: 50px;
            border: 1px solid var(--border-color);
            transition: all var(--transition);
            text-decoration: none;
        }
        .article-tags .tag-item:hover { background: var(--primary-light); color: #fff; border-color: var(--primary-light); }

        /* 内容未找到 */
        .article-not-found {
            text-align: center;
            padding: 60px 20px;
        }
        .article-not-found i { font-size: 4rem; color: var(--text-muted); margin-bottom: 20px; display: block; }
        .article-not-found h2 { font-size: 1.8rem; color: var(--primary-dark); margin-bottom: 12px; }
        .article-not-found p { color: var(--text-muted); font-size: 1.1rem; margin-bottom: 24px; }

        /* ===== 侧边栏 ===== */
        .article-sidebar { padding-left: 32px; }
        .article-sidebar .sidebar-widget {
            background: var(--bg-light);
            border-radius: var(--radius-md);
            padding: 24px;
            margin-bottom: 28px;
            border: 1px solid var(--border-color);
            transition: box-shadow var(--transition);
        }
        .article-sidebar .sidebar-widget:hover { box-shadow: var(--shadow-sm); }
        .article-sidebar .sidebar-widget h4 {
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--primary-dark);
            margin-bottom: 16px;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .article-sidebar .sidebar-widget h4 i { color: var(--accent); }
        .sidebar-search .input-group { border-radius: 50px; overflow: hidden; border: 1px solid var(--border-color); }
        .sidebar-search .input-group input { border: none; padding: 10px 16px; font-size: 0.9rem; }
        .sidebar-search .input-group button { background: var(--primary-light); color: #fff; border: none; padding: 0 18px; }
        .sidebar-categories ul { list-style: none; padding: 0; margin: 0; }
        .sidebar-categories ul li { border-bottom: 1px solid var(--border-color); padding: 10px 0; }
        .sidebar-categories ul li:last-child { border-bottom: none; }
        .sidebar-categories ul li a { display: flex; align-items: center; gap: 8px; color: var(--text-dark); font-weight: 500; }
        .sidebar-categories ul li a i { color: var(--primary-light); font-size: 0.8rem; }
        .sidebar-categories ul li a:hover { color: var(--accent); }
        .sidebar-posts .post-item {
            display: flex;
            gap: 12px;
            padding: 12px 0;
            border-bottom: 1px solid var(--border-color);
        }
        .sidebar-posts .post-item:last-child { border-bottom: none; }
        .sidebar-posts .post-item .post-thumb {
            width: 60px;
            height: 60px;
            border-radius: var(--radius-sm);
            background: var(--border-color);
            flex-shrink: 0;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--text-muted);
            font-size: 1.4rem;
        }
        .sidebar-posts .post-item .post-info { flex: 1; }
        .sidebar-posts .post-item .post-info a {
            font-size: 0.9rem;
            font-weight: 600;
            color: var(--text-dark);
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            line-height: 1.4;
        }
        .sidebar-posts .post-item .post-info a:hover { color: var(--primary-light); }
        .sidebar-posts .post-item .post-info .post-date { font-size: 0.78rem; color: var(--text-muted); margin-top: 4px; display: block; }
        .sidebar-cta-card {
            background: linear-gradient(135deg, var(--primary-dark), var(--primary));
            color: #fff;
            border-radius: var(--radius-md);
            padding: 28px 20px;
            text-align: center;
        }
        .sidebar-cta-card h4 { color: #fff !important; }
        .sidebar-cta-card p { color: rgba(255,255,255,0.85); font-size: 0.9rem; margin-bottom: 16px; }
        .sidebar-cta-card .btn-cta {
            background: var(--accent);
            color: #1a1a2e;
            font-weight: 600;
            padding: 10px 28px;
            border-radius: 50px;
            border: none;
            transition: all var(--transition);
        }
        .sidebar-cta-card .btn-cta:hover { background: var(--accent-hover); transform: translateY(-2px); box-shadow: 0 6px 20px rgba(245,166,35,0.4); }

        /* ===== 相关文章 ===== */
        .related-posts {
            background: var(--bg-light);
            padding: 56px 0;
            border-top: 1px solid var(--border-color);
        }
        .related-posts .section-title {
            font-size: 1.6rem;
            font-weight: 700;
            color: var(--primary-dark);
            margin-bottom: 32px;
            text-align: center;
        }
        .related-posts .section-title i { color: var(--accent); margin-right: 10px; }
        .related-card {
            background: #fff;
            border-radius: var(--radius-md);
            overflow: hidden;
            border: 1px solid var(--border-color);
            transition: all var(--transition);
            height: 100%;
            display: flex;
            flex-direction: column;
        }
        .related-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); border-color: transparent; }
        .related-card .card-img {
            height: 180px;
            background: linear-gradient(135deg, var(--bg-light), #d4e6f1);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 3rem;
            color: var(--primary-light);
        }
        .related-card .card-body { padding: 20px; flex: 1; display: flex; flex-direction: column; }
        .related-card .card-body .cat-badge {
            display: inline-block;
            background: var(--bg-light);
            color: var(--primary-light);
            font-size: 0.75rem;
            font-weight: 600;
            padding: 3px 12px;
            border-radius: 50px;
            margin-bottom: 8px;
            align-self: flex-start;
        }
        .related-card .card-body h5 { font-size: 1rem; font-weight: 700; margin-bottom: 8px; }
        .related-card .card-body h5 a { color: var(--text-dark); }
        .related-card .card-body h5 a:hover { color: var(--primary-light); }
        .related-card .card-body p { font-size: 0.85rem; color: var(--text-muted); flex: 1; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
        .related-card .card-body .card-date { font-size: 0.78rem; color: var(--text-muted); margin-top: 12px; }

        /* ===== CTA ===== */
        .cta-section {
            background: linear-gradient(135deg, var(--primary-dark), var(--primary));
            padding: 64px 0;
            text-align: center;
            color: #fff;
        }
        .cta-section h2 { font-size: 2rem; font-weight: 700; margin-bottom: 12px; }
        .cta-section p { color: rgba(255,255,255,0.85); font-size: 1.1rem; max-width: 600px; margin: 0 auto 28px; }
        .cta-section .btn-cta {
            background: var(--accent);
            color: #1a1a2e;
            font-weight: 700;
            padding: 14px 40px;
            border-radius: 50px;
            font-size: 1.05rem;
            border: none;
            transition: all var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 10px;
        }
        .cta-section .btn-cta:hover { background: var(--accent-hover); transform: translateY(-2px); box-shadow: 0 8px 30px rgba(245,166,35,0.5); }

        /* ===== 页脚 ===== */
        .site-footer {
            background: var(--bg-dark);
            color: rgba(255,255,255,0.8);
            padding: 52px 0 20px;
            border-top: 3px solid var(--accent);
        }
        .site-footer .footer-grid {
            display: grid;
            grid-template-columns: 1.6fr 1fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 32px;
        }
        .site-footer .footer-brand .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            color: var(--text-light);
            font-size: 1.25rem;
            font-weight: 700;
            margin-bottom: 16px;
        }
        .site-footer .footer-brand .logo i { color: var(--accent); font-size: 1.4rem; }
        .site-footer .footer-brand p { font-size: 0.9rem; line-height: 1.7; color: rgba(255,255,255,0.65); max-width: 360px; }
        .site-footer .footer-col h4 {
            color: var(--text-light);
            font-size: 1rem;
            font-weight: 600;
            margin-bottom: 16px;
            position: relative;
            padding-bottom: 8px;
        }
        .site-footer .footer-col h4::after { content: ''; position: absolute; bottom: 0; left: 0; width: 30px; height: 2px; background: var(--accent); }
        .site-footer .footer-col ul { list-style: none; padding: 0; margin: 0; }
        .site-footer .footer-col ul li { margin-bottom: 10px; }
        .site-footer .footer-col ul li a { color: rgba(255,255,255,0.65); font-size: 0.9rem; transition: color var(--transition); }
        .site-footer .footer-col ul li a:hover { color: var(--accent); }
        .site-footer .footer-bottom {
            border-top: 1px solid rgba(255,255,255,0.1);
            padding-top: 20px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 12px;
            font-size: 0.85rem;
            color: rgba(255,255,255,0.5);
        }
        .site-footer .footer-bottom a { color: rgba(255,255,255,0.6); }
        .site-footer .footer-bottom a:hover { color: var(--accent); }

        /* ===== 响应式 ===== */
        @media (max-width: 1024px) {
            .article-hero h1 { font-size: 2rem; }
            .article-sidebar { padding-left: 0; margin-top: 36px; }
            .site-footer .footer-grid { grid-template-columns: 1fr 1fr; gap: 30px; }
        }
        @media (max-width: 768px) {
            .site-header .container { height: 60px; }
            .navbar-toggler { display: block; }
            .nav-list {
                display: none;
                position: absolute;
                top: 60px;
                left: 0;
                right: 0;
                background: var(--bg-dark);
                flex-direction: column;
                padding: 16px 20px;
                gap: 4px;
                box-shadow: 0 12px 40px rgba(0,0,0,0.3);
                border-top: 1px solid rgba(255,255,255,0.08);
            }
            .nav-list.open { display: flex; }
            .nav-link { padding: 12px 16px; width: 100%; }
            .nav-link.nav-cta { margin-left: 0; text-align: center; justify-content: center; }
            .article-hero { padding: 32px 0 28px; }
            .article-hero h1 { font-size: 1.6rem; }
            .article-meta { gap: 12px; font-size: 0.85rem; }
            .article-body { font-size: 1rem; }
            .related-posts .section-title { font-size: 1.3rem; }
            .cta-section h2 { font-size: 1.5rem; }
            .cta-section p { font-size: 0.95rem; }
            .site-footer .footer-grid { grid-template-columns: 1fr; gap: 24px; }
            .site-footer .footer-bottom { flex-direction: column; text-align: center; }
        }
        @media (max-width: 520px) {
            .container { padding: 0 16px; }
            .article-hero h1 { font-size: 1.35rem; }
            .article-body { font-size: 0.95rem; }
            .article-sidebar .sidebar-widget { padding: 16px; }
            .related-card .card-img { height: 140px; }
            .cta-section { padding: 40px 0; }
            .cta-section .btn-cta { padding: 12px 28px; font-size: 0.95rem; }
        }

        /* 工具类 */
        .btn-primary-custom {
            background: var(--primary-light);
            color: #fff;
            border: none;
            padding: 10px 28px;
            border-radius: 50px;
            font-weight: 600;
            transition: all var(--transition);
        }
        .btn-primary-custom:hover { background: var(--primary); transform: translateY(-2px); box-shadow: 0 6px 20px rgba(26,82,118,0.3); }
        .text-accent { color: var(--accent); }
        .bg-light-custom { background: var(--bg-light); }

/* roulang page: category2 */
/* ===== 设计变量 ===== */
        :root {
            --primary: #e74c3c;
            --primary-dark: #c0392b;
            --primary-light: #fadbd8;
            --primary-gradient: linear-gradient(135deg, #e74c3c 0%, #c0392b 100%);
            --secondary: #2c3e50;
            --secondary-light: #34495e;
            --accent: #f39c12;
            --accent-light: #fef5e7;
            --bg-light: #f8f9fa;
            --bg-dark: #1a1a2e;
            --bg-card: #ffffff;
            --text-primary: #2c3e50;
            --text-secondary: #6c757d;
            --text-light: #adb5bd;
            --text-white: #ffffff;
            --border-color: #e9ecef;
            --border-light: #f1f3f5;
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 20px;
            --radius-xl: 28px;
            --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.06);
            --shadow-md: 0 8px 30px rgba(0, 0, 0, 0.1);
            --shadow-lg: 0 20px 60px rgba(0, 0, 0, 0.15);
            --shadow-hover: 0 12px 40px rgba(231, 76, 60, 0.2);
            --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --font-sans: 'Segoe UI', system-ui, -apple-system, 'Helvetica Neue', Arial, sans-serif;
            --container-max: 1200px;
            --header-height: 70px;
        }

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

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

        body {
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.7;
            color: var(--text-primary);
            background: var(--bg-light);
            padding-top: var(--header-height);
            overflow-x: hidden;
        }

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

        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
        }
        button:focus-visible,
        input:focus-visible {
            outline: 3px solid var(--primary);
            outline-offset: 2px;
        }

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

        /* ===== 容器 ===== */
        .container {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 20px;
        }

        /* ===== 导航 ===== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1050;
            height: var(--header-height);
            background: rgba(255, 255, 255, 0.97);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border-color);
            transition: var(--transition);
        }
        .site-header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
        }
        .site-header .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.4rem;
            font-weight: 800;
            color: var(--primary);
            text-decoration: none;
            letter-spacing: -0.5px;
            flex-shrink: 0;
        }
        .site-header .logo i {
            font-size: 1.6rem;
            color: var(--primary);
            transition: transform 0.4s ease;
        }
        .site-header .logo:hover i {
            transform: rotate(15deg) scale(1.1);
        }
        .site-header .logo span {
            background: var(--primary-gradient);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .navbar-toggler {
            display: none;
            background: none;
            border: none;
            font-size: 1.5rem;
            color: var(--secondary);
            padding: 6px 10px;
            border-radius: var(--radius-sm);
            cursor: pointer;
            transition: var(--transition);
        }
        .navbar-toggler:hover {
            color: var(--primary);
            background: var(--primary-light);
        }

        .nav-list {
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .nav-list .nav-link {
            display: flex;
            align-items: center;
            gap: 6px;
            padding: 8px 18px;
            border-radius: var(--radius-sm);
            font-size: 0.95rem;
            font-weight: 500;
            color: var(--text-secondary);
            text-decoration: none;
            transition: var(--transition);
            position: relative;
            white-space: nowrap;
        }
        .nav-list .nav-link i {
            font-size: 0.9rem;
        }
        .nav-list .nav-link:hover {
            color: var(--primary);
            background: var(--primary-light);
        }
        .nav-list .nav-link.active {
            color: var(--primary);
            background: var(--primary-light);
            font-weight: 600;
        }
        .nav-list .nav-link.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 50%;
            transform: translateX(-50%);
            width: 20px;
            height: 3px;
            background: var(--primary-gradient);
            border-radius: 4px;
        }
        .nav-list .nav-cta {
            background: var(--primary-gradient);
            color: #fff !important;
            padding: 8px 24px;
            border-radius: var(--radius-sm);
            font-weight: 600;
            box-shadow: 0 4px 15px rgba(231, 76, 60, 0.3);
        }
        .nav-list .nav-cta:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 25px rgba(231, 76, 60, 0.4);
            background: linear-gradient(135deg, #c0392b 0%, #e74c3c 100%);
        }

        /* ===== Hero 首屏 ===== */
        .category-hero {
            background: var(--bg-dark);
            background-image: linear-gradient(135deg, #1a1a2e 0%, #16213e 50%, #0f3460 100%);
            padding: 80px 0 60px;
            text-align: center;
            position: relative;
            overflow: hidden;
            border-bottom: 4px solid var(--primary);
        }
        .category-hero::before {
            content: '';
            position: absolute;
            top: -50%;
            left: -50%;
            width: 200%;
            height: 200%;
            background: radial-gradient(circle at 30% 40%, rgba(231, 76, 60, 0.08) 0%, transparent 50%),
                radial-gradient(circle at 70% 60%, rgba(241, 196, 15, 0.06) 0%, transparent 50%);
            animation: heroGlow 12s ease-in-out infinite alternate;
        }
        @keyframes heroGlow {
            0% {
                transform: translate(0, 0) scale(1);
            }
            50% {
                transform: translate(2%, 2%) scale(1.05);
            }
            100% {
                transform: translate(-2%, -2%) scale(1.02);
            }
        }
        .category-hero .container {
            position: relative;
            z-index: 1;
        }
        .category-hero h1 {
            font-size: 2.8rem;
            font-weight: 800;
            color: var(--text-white);
            margin-bottom: 16px;
            letter-spacing: -1px;
        }
        .category-hero h1 i {
            color: var(--accent);
            margin-right: 12px;
        }
        .category-hero p {
            font-size: 1.15rem;
            color: rgba(255, 255, 255, 0.7);
            max-width: 680px;
            margin: 0 auto 28px;
            line-height: 1.8;
        }
        .category-hero .hero-tags {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 10px;
        }
        .category-hero .hero-tags span {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 6px 18px;
            background: rgba(255, 255, 255, 0.1);
            border: 1px solid rgba(255, 255, 255, 0.15);
            border-radius: 50px;
            color: rgba(255, 255, 255, 0.85);
            font-size: 0.85rem;
            font-weight: 500;
            backdrop-filter: blur(4px);
        }
        .category-hero .hero-tags span i {
            color: var(--accent);
        }

        /* ===== 板块标题 ===== */
        .section-title {
            font-size: 2rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 8px;
            letter-spacing: -0.5px;
            position: relative;
            display: inline-block;
        }
        .section-title i {
            color: var(--primary);
            margin-right: 10px;
        }
        .section-subtitle {
            font-size: 1.05rem;
            color: var(--text-secondary);
            margin-bottom: 40px;
            max-width: 600px;
        }
        .section-divider {
            width: 60px;
            height: 4px;
            background: var(--primary-gradient);
            border-radius: 4px;
            margin: 12px 0 24px;
        }

        /* ===== 卡片通用 ===== */
        .card {
            border: none;
            border-radius: var(--radius-md);
            background: var(--bg-card);
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
            overflow: hidden;
        }
        .card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-md);
        }

        .card-news {
            display: flex;
            flex-direction: column;
            height: 100%;
            border-radius: var(--radius-md);
            overflow: hidden;
        }
        .card-news .card-img-top {
            height: 200px;
            object-fit: cover;
            background: var(--border-color);
        }
        .card-news .card-body {
            padding: 24px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .card-news .card-tag {
            display: inline-block;
            padding: 4px 14px;
            background: var(--primary-light);
            color: var(--primary);
            border-radius: 50px;
            font-size: 0.8rem;
            font-weight: 600;
            margin-bottom: 12px;
            align-self: flex-start;
        }
        .card-news .card-title {
            font-size: 1.15rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 10px;
            line-height: 1.4;
            transition: var(--transition);
        }
        .card-news .card-title a {
            color: inherit;
        }
        .card-news .card-title a:hover {
            color: var(--primary);
        }
        .card-news .card-text {
            font-size: 0.92rem;
            color: var(--text-secondary);
            flex: 1;
            margin-bottom: 16px;
            line-height: 1.7;
        }
        .card-news .card-meta {
            display: flex;
            align-items: center;
            gap: 16px;
            font-size: 0.82rem;
            color: var(--text-light);
            padding-top: 14px;
            border-top: 1px solid var(--border-light);
        }
        .card-news .card-meta i {
            margin-right: 4px;
        }

        /* ===== 活动公告 ===== */
        .event-card {
            display: flex;
            gap: 24px;
            background: var(--bg-card);
            border-radius: var(--radius-md);
            padding: 28px 32px;
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
            border-left: 4px solid var(--primary);
            margin-bottom: 20px;
        }
        .event-card:hover {
            transform: translateX(6px);
            box-shadow: var(--shadow-md);
        }
        .event-card .event-date {
            flex-shrink: 0;
            text-align: center;
            width: 80px;
            padding: 12px 8px;
            background: var(--primary-light);
            border-radius: var(--radius-sm);
        }
        .event-card .event-date .day {
            font-size: 1.8rem;
            font-weight: 800;
            color: var(--primary);
            line-height: 1.2;
        }
        .event-card .event-date .month {
            font-size: 0.85rem;
            color: var(--text-secondary);
            font-weight: 600;
            text-transform: uppercase;
        }
        .event-card .event-content {
            flex: 1;
        }
        .event-card .event-content h4 {
            font-size: 1.1rem;
            font-weight: 700;
            margin-bottom: 6px;
            color: var(--text-primary);
        }
        .event-card .event-content p {
            font-size: 0.92rem;
            color: var(--text-secondary);
            margin-bottom: 8px;
        }
        .event-card .event-content .event-status {
            display: inline-block;
            padding: 3px 12px;
            border-radius: 50px;
            font-size: 0.75rem;
            font-weight: 600;
        }
        .event-status.active {
            background: #d4edda;
            color: #155724;
        }
        .event-status.upcoming {
            background: #fff3cd;
            color: #856404;
        }
        .event-status.ended {
            background: #f8d7da;
            color: #721c24;
        }

        /* ===== 更新日志 ===== */
        .timeline {
            position: relative;
            padding-left: 40px;
        }
        .timeline::before {
            content: '';
            position: absolute;
            left: 16px;
            top: 0;
            bottom: 0;
            width: 3px;
            background: linear-gradient(to bottom, var(--primary), var(--accent), transparent);
            border-radius: 4px;
        }
        .timeline-item {
            position: relative;
            padding-bottom: 36px;
        }
        .timeline-item:last-child {
            padding-bottom: 0;
        }
        .timeline-item::before {
            content: '';
            position: absolute;
            left: -28px;
            top: 6px;
            width: 14px;
            height: 14px;
            background: var(--primary);
            border: 3px solid #fff;
            border-radius: 50%;
            box-shadow: 0 0 0 4px var(--primary-light);
        }
        .timeline-item .tl-date {
            font-size: 0.85rem;
            color: var(--text-light);
            font-weight: 600;
            margin-bottom: 4px;
        }
        .timeline-item .tl-title {
            font-size: 1.05rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 4px;
        }
        .timeline-item .tl-desc {
            font-size: 0.9rem;
            color: var(--text-secondary);
            line-height: 1.6;
        }
        .timeline-item .tl-tag {
            display: inline-block;
            padding: 2px 12px;
            background: var(--accent-light);
            color: var(--accent);
            border-radius: 50px;
            font-size: 0.75rem;
            font-weight: 600;
            margin-top: 6px;
        }

        /* ===== 数据统计 ===== */
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }
        .stat-card {
            text-align: center;
            padding: 32px 20px;
            background: var(--bg-card);
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
            border: 1px solid var(--border-color);
        }
        .stat-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-md);
            border-color: var(--primary);
        }
        .stat-card .stat-number {
            font-size: 2.4rem;
            font-weight: 800;
            color: var(--primary);
            line-height: 1.2;
            margin-bottom: 4px;
        }
        .stat-card .stat-number span {
            font-size: 1.2rem;
            font-weight: 600;
        }
        .stat-card .stat-label {
            font-size: 0.92rem;
            color: var(--text-secondary);
            font-weight: 500;
        }
        .stat-card .stat-icon {
            font-size: 2rem;
            color: var(--accent);
            margin-bottom: 12px;
        }

        /* ===== FAQ ===== */
        .faq-list .faq-item {
            background: var(--bg-card);
            border-radius: var(--radius-sm);
            margin-bottom: 12px;
            border: 1px solid var(--border-color);
            overflow: hidden;
            transition: var(--transition);
        }
        .faq-list .faq-item:hover {
            border-color: var(--primary);
        }
        .faq-list .faq-question {
            padding: 18px 24px;
            font-weight: 600;
            font-size: 1rem;
            color: var(--text-primary);
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            background: none;
            border: none;
            width: 100%;
            text-align: left;
            transition: var(--transition);
        }
        .faq-list .faq-question i {
            color: var(--primary);
            transition: transform 0.3s ease;
            flex-shrink: 0;
        }
        .faq-list .faq-question[aria-expanded="true"] i {
            transform: rotate(180deg);
        }
        .faq-list .faq-question:hover {
            color: var(--primary);
        }
        .faq-list .faq-answer {
            padding: 0 24px 18px;
            font-size: 0.92rem;
            color: var(--text-secondary);
            line-height: 1.7;
            display: none;
        }
        .faq-list .faq-answer.show {
            display: block;
        }

        /* ===== CTA ===== */
        .cta-section {
            background: var(--bg-dark);
            background-image: linear-gradient(135deg, #1a1a2e 0%, #16213e 50%, #0f3460 100%);
            padding: 70px 0;
            text-align: center;
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: radial-gradient(circle at 30% 50%, rgba(231, 76, 60, 0.08) 0%, transparent 50%),
                radial-gradient(circle at 70% 50%, rgba(241, 196, 15, 0.06) 0%, transparent 50%);
        }
        .cta-section .container {
            position: relative;
            z-index: 1;
        }
        .cta-section h2 {
            font-size: 2rem;
            font-weight: 700;
            color: var(--text-white);
            margin-bottom: 12px;
        }
        .cta-section p {
            font-size: 1.1rem;
            color: rgba(255, 255, 255, 0.7);
            max-width: 600px;
            margin: 0 auto 32px;
        }
        .cta-section .btn-cta {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            padding: 14px 40px;
            font-size: 1.05rem;
            font-weight: 700;
            color: #fff;
            background: var(--primary-gradient);
            border: none;
            border-radius: var(--radius-sm);
            box-shadow: 0 8px 30px rgba(231, 76, 60, 0.35);
            transition: var(--transition);
            text-decoration: none;
        }
        .cta-section .btn-cta:hover {
            transform: translateY(-3px);
            box-shadow: 0 12px 40px rgba(231, 76, 60, 0.5);
            color: #fff;
        }

        /* ===== 页脚 ===== */
        .site-footer {
            background: var(--bg-dark);
            color: rgba(255, 255, 255, 0.7);
            padding: 60px 0 30px;
        }
        .site-footer .footer-grid {
            display: grid;
            grid-template-columns: 1.8fr 1fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 40px;
        }
        .site-footer .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.3rem;
            font-weight: 800;
            color: var(--text-white);
            text-decoration: none;
            margin-bottom: 14px;
        }
        .site-footer .logo i {
            color: var(--primary);
            font-size: 1.5rem;
        }
        .site-footer .logo span {
            background: var(--primary-gradient);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .site-footer .footer-brand p {
            font-size: 0.9rem;
            line-height: 1.7;
            color: rgba(255, 255, 255, 0.5);
            max-width: 320px;
        }
        .site-footer .footer-col h4 {
            font-size: 1rem;
            font-weight: 700;
            color: var(--text-white);
            margin-bottom: 16px;
            position: relative;
            padding-bottom: 10px;
        }
        .site-footer .footer-col h4::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 30px;
            height: 3px;
            background: var(--primary);
            border-radius: 4px;
        }
        .site-footer .footer-col ul li {
            margin-bottom: 10px;
        }
        .site-footer .footer-col ul li a {
            color: rgba(255, 255, 255, 0.55);
            font-size: 0.9rem;
            transition: var(--transition);
            text-decoration: none;
        }
        .site-footer .footer-col ul li a:hover {
            color: var(--primary);
            padding-left: 4px;
        }
        .site-footer .footer-bottom {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding-top: 24px;
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.35);
            flex-wrap: wrap;
            gap: 12px;
        }
        .site-footer .footer-bottom a {
            color: rgba(255, 255, 255, 0.4);
            text-decoration: none;
        }
        .site-footer .footer-bottom a:hover {
            color: var(--primary);
        }

        /* ===== 响应式 ===== */
        @media (max-width: 1024px) {
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .site-footer .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 30px;
            }
        }

        @media (max-width: 768px) {
            :root {
                --header-height: 60px;
            }
            .navbar-toggler {
                display: block;
            }
            .nav-list {
                display: none;
                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);
                flex-direction: column;
                padding: 20px 24px;
                gap: 8px;
                border-bottom: 2px solid var(--border-color);
                box-shadow: var(--shadow-lg);
                max-height: calc(100vh - var(--header-height));
                overflow-y: auto;
            }
            .nav-list.open {
                display: flex;
            }
            .nav-list .nav-link {
                width: 100%;
                justify-content: center;
                padding: 12px 20px;
                font-size: 1rem;
            }
            .nav-list .nav-link.active::after {
                display: none;
            }
            .nav-list .nav-cta {
                margin-top: 8px;
            }

            .category-hero {
                padding: 50px 0 40px;
            }
            .category-hero h1 {
                font-size: 1.8rem;
            }
            .category-hero p {
                font-size: 1rem;
            }
            .category-hero .hero-tags span {
                font-size: 0.78rem;
                padding: 4px 14px;
            }

            .section-title {
                font-size: 1.5rem;
            }

            .event-card {
                flex-direction: column;
                padding: 20px 24px;
                gap: 16px;
            }
            .event-card .event-date {
                width: 100%;
                display: flex;
                align-items: center;
                gap: 12px;
                padding: 8px 16px;
            }
            .event-card .event-date .day {
                font-size: 1.4rem;
            }

            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 16px;
            }
            .stat-card {
                padding: 24px 16px;
            }
            .stat-card .stat-number {
                font-size: 1.8rem;
            }

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

            .timeline {
                padding-left: 30px;
            }
            .timeline::before {
                left: 10px;
            }
            .timeline-item::before {
                left: -22px;
                width: 12px;
                height: 12px;
            }
        }

        @media (max-width: 520px) {
            .category-hero h1 {
                font-size: 1.4rem;
            }
            .category-hero p {
                font-size: 0.9rem;
            }
            .section-title {
                font-size: 1.3rem;
            }
            .stats-grid {
                grid-template-columns: 1fr 1fr;
                gap: 12px;
            }
            .stat-card {
                padding: 18px 12px;
            }
            .stat-card .stat-number {
                font-size: 1.5rem;
            }
            .card-news .card-img-top {
                height: 160px;
            }
            .card-news .card-body {
                padding: 18px;
            }
            .cta-section h2 {
                font-size: 1.4rem;
            }
            .cta-section .btn-cta {
                padding: 12px 28px;
                font-size: 0.95rem;
            }
            .event-card {
                padding: 16px 18px;
            }
            .site-header .logo {
                font-size: 1.15rem;
            }
            .site-header .logo i {
                font-size: 1.3rem;
            }
        }

        /* ===== 辅助 ===== */
        .mt-section {
            margin-top: 60px;
        }
        .mb-section {
            margin-bottom: 60px;
        }
        .py-section {
            padding-top: 60px;
            padding-bottom: 60px;
        }
        .bg-white {
            background: #ffffff;
        }
        .bg-light-custom {
            background: var(--bg-light);
        }
        .rounded-custom {
            border-radius: var(--radius-md);
        }
        .shadow-custom {
            box-shadow: var(--shadow-sm);
        }

        .btn-outline-primary-custom {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 10px 28px;
            border: 2px solid var(--primary);
            color: var(--primary);
            border-radius: var(--radius-sm);
            font-weight: 600;
            background: transparent;
            transition: var(--transition);
            text-decoration: none;
        }
        .btn-outline-primary-custom:hover {
            background: var(--primary);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(231, 76, 60, 0.25);
        }

        .tag-filter {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            margin-bottom: 32px;
        }
        .tag-filter .tag {
            padding: 6px 20px;
            border-radius: 50px;
            font-size: 0.85rem;
            font-weight: 500;
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            color: var(--text-secondary);
            cursor: pointer;
            transition: var(--transition);
            text-decoration: none;
        }
        .tag-filter .tag:hover,
        .tag-filter .tag.active {
            background: var(--primary);
            color: #fff;
            border-color: var(--primary);
            box-shadow: 0 4px 12px rgba(231, 76, 60, 0.25);
        }