/* roulang page: index */
:root {
            --primary: #0f1f3d;
            --primary-light: #1a3055;
            --accent: #c9a84c;
            --accent-light: #e0c56a;
            --accent-dark: #a88a2e;
            --bg-light: #f8f7f4;
            --bg-card: #ffffff;
            --text-dark: #1a1a2e;
            --text-body: #3d3d4a;
            --text-muted: #7a7a8a;
            --border-light: #e8e5df;
            --radius-sm: 8px;
            --radius-md: 16px;
            --radius-lg: 24px;
            --shadow-sm: 0 2px 8px rgba(15, 31, 61, 0.06);
            --shadow-md: 0 8px 30px rgba(15, 31, 61, 0.1);
            --shadow-lg: 0 20px 60px rgba(15, 31, 61, 0.15);
            --font-base: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
            --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }

        *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
        html { scroll-behavior: smooth; -webkit-font-smoothing: antialiased; }
        body {
            font-family: var(--font-base);
            color: var(--text-body);
            background: var(--bg-light);
            line-height: 1.7;
            overflow-x: hidden;
        }
        a { color: var(--accent-dark); text-decoration: none; transition: color var(--transition); }
        a:hover { color: var(--accent); }
        img { max-width: 100%; height: auto; display: block; }
        button, input, textarea { font-family: inherit; }
        .container { max-width: 1200px; padding: 0 20px; margin: 0 auto; }
        .container-fluid { padding: 0 20px; }

        /* navigation */
        .site-header {
            position: fixed;
            top: 0; left: 0; right: 0;
            z-index: 1050;
            background: rgba(15, 31, 61, 0.92);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid rgba(201, 168, 76, 0.15);
            transition: background var(--transition);
        }
        .site-header .navbar {
            padding: 12px 0;
            display: flex;
            align-items: center;
            justify-content: space-between;
        }
        .site-logo {
            font-size: 1.35rem;
            font-weight: 700;
            color: #fff;
            letter-spacing: 0.02em;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .site-logo i { color: var(--accent); font-size: 1.5rem; }
        .site-logo:hover { color: var(--accent-light); }
        .nav-links { display: flex; align-items: center; gap: 6px; list-style: none; margin: 0; padding: 0; }
        .nav-links .nav-item a {
            color: rgba(255,255,255,0.75);
            padding: 8px 18px;
            border-radius: 50px;
            font-size: 0.9rem;
            font-weight: 500;
            transition: all var(--transition);
            position: relative;
            white-space: nowrap;
        }
        .nav-links .nav-item a:hover { color: #fff; background: rgba(201, 168, 76, 0.15); }
        .nav-links .nav-item a.active { color: #fff; background: var(--accent); box-shadow: 0 4px 15px rgba(201, 168, 76, 0.3); }
        .nav-cta {
            background: var(--accent);
            color: var(--primary) !important;
            font-weight: 600 !important;
            padding: 8px 24px !important;
            border-radius: 50px;
            box-shadow: 0 4px 15px rgba(201, 168, 76, 0.25);
        }
        .nav-cta:hover { background: var(--accent-light) !important; box-shadow: 0 6px 25px rgba(201, 168, 76, 0.35) !important; transform: translateY(-1px); }
        .navbar-toggler { border: none; background: transparent; color: #fff; font-size: 1.5rem; padding: 4px 8px; cursor: pointer; display: none; }
        .navbar-toggler:focus { outline: 2px solid var(--accent); outline-offset: 2px; border-radius: 4px; }

        @media (max-width: 991px) {
            .navbar-toggler { display: block; }
            .nav-links { display: none; flex-direction: column; background: var(--primary); padding: 16px; border-radius: var(--radius-md); margin-top: 12px; width: 100%; gap: 4px; }
            .nav-links.show { display: flex; }
            .site-header .navbar { flex-wrap: wrap; }
            .nav-links .nav-item a { width: 100%; text-align: center; padding: 12px 16px; }
            .nav-cta { margin-top: 4px; }
        }

        /* hero */
        .hero-section {
            padding: 140px 0 100px;
            background: linear-gradient(145deg, var(--primary) 0%, #0b162e 50%, #132544 100%);
            position: relative;
            overflow: hidden;
            min-height: 80vh;
            display: flex;
            align-items: center;
        }
        .hero-section::before {
            content: '';
            position: absolute;
            top: -30%; right: -20%;
            width: 600px; height: 600px;
            background: radial-gradient(circle, rgba(201,168,76,0.12) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }
        .hero-section::after {
            content: '';
            position: absolute;
            bottom: -20%; left: -15%;
            width: 500px; height: 500px;
            background: radial-gradient(circle, rgba(201,168,76,0.06) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }
        .hero-content { position: relative; z-index: 2; }
        .hero-badge {
            display: inline-flex; align-items: center; gap: 8px;
            background: rgba(201,168,76,0.15);
            color: var(--accent-light);
            padding: 6px 18px;
            border-radius: 50px;
            font-size: 0.8rem;
            font-weight: 500;
            letter-spacing: 0.03em;
            margin-bottom: 24px;
            border: 1px solid rgba(201,168,76,0.2);
        }
        .hero-badge i { font-size: 0.7rem; }
        .hero-title {
            font-size: clamp(2.2rem, 6vw, 4rem);
            font-weight: 800;
            color: #fff;
            line-height: 1.15;
            margin-bottom: 20px;
            letter-spacing: -0.02em;
        }
        .hero-title span { color: var(--accent); }
        .hero-desc {
            font-size: 1.15rem;
            color: rgba(255,255,255,0.7);
            max-width: 580px;
            margin-bottom: 36px;
            line-height: 1.8;
        }
        .hero-actions { display: flex; flex-wrap: wrap; gap: 14px; }
        .btn-accent {
            background: var(--accent);
            color: var(--primary);
            border: none;
            padding: 14px 36px;
            border-radius: 50px;
            font-weight: 600;
            font-size: 0.95rem;
            transition: all var(--transition);
            display: inline-flex; align-items: center; gap: 10px;
            box-shadow: 0 4px 20px rgba(201,168,76,0.3);
        }
        .btn-accent:hover { background: var(--accent-light); color: var(--primary); transform: translateY(-2px); box-shadow: 0 8px 35px rgba(201,168,76,0.4); }
        .btn-outline-light {
            background: transparent;
            color: #fff;
            border: 1.5px solid rgba(255,255,255,0.3);
            padding: 14px 36px;
            border-radius: 50px;
            font-weight: 500;
            font-size: 0.95rem;
            transition: all var(--transition);
            display: inline-flex; align-items: center; gap: 10px;
        }
        .btn-outline-light:hover { background: rgba(255,255,255,0.08); border-color: rgba(255,255,255,0.5); color: #fff; transform: translateY(-2px); }
        .hero-stats {
            display: flex; flex-wrap: wrap; gap: 40px;
            margin-top: 50px;
            padding-top: 40px;
            border-top: 1px solid rgba(255,255,255,0.08);
        }
        .hero-stat-item { text-align: left; }
        .hero-stat-number {
            font-size: 1.8rem;
            font-weight: 700;
            color: #fff;
            line-height: 1.2;
        }
        .hero-stat-number small { font-size: 0.9rem; color: var(--accent); font-weight: 500; }
        .hero-stat-label { font-size: 0.85rem; color: rgba(255,255,255,0.5); margin-top: 4px; }

        /* section spacing */
        .section { padding: 80px 0; }
        .section-alt { background: #fff; }
        .section-dark { background: var(--primary); color: #fff; }
        .section-label {
            display: inline-block;
            color: var(--accent-dark);
            font-weight: 600;
            font-size: 0.8rem;
            letter-spacing: 0.08em;
            text-transform: uppercase;
            margin-bottom: 12px;
            position: relative;
            padding-left: 28px;
        }
        .section-label::before {
            content: '';
            position: absolute;
            left: 0; top: 50%;
            width: 18px; height: 2px;
            background: var(--accent);
            transform: translateY(-50%);
        }
        .section-title {
            font-size: clamp(1.6rem, 3.5vw, 2.6rem);
            font-weight: 700;
            color: var(--text-dark);
            margin-bottom: 16px;
            line-height: 1.25;
            letter-spacing: -0.01em;
        }
        .section-dark .section-title { color: #fff; }
        .section-dark .section-label::before { background: var(--accent-light); }
        .section-desc {
            font-size: 1.05rem;
            color: var(--text-muted);
            max-width: 620px;
            margin-bottom: 40px;
            line-height: 1.8;
        }
        .section-dark .section-desc { color: rgba(255,255,255,0.6); }

        /* feature cards */
        .feature-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 28px; }
        .feature-card {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            padding: 32px 28px;
            box-shadow: var(--shadow-sm);
            transition: all var(--transition);
            border: 1px solid var(--border-light);
            position: relative;
            overflow: hidden;
        }
        .feature-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); border-color: var(--accent); }
        .feature-card-icon {
            width: 56px; height: 56px;
            background: rgba(201,168,76,0.1);
            border-radius: 12px;
            display: flex; align-items: center; justify-content: center;
            font-size: 1.5rem;
            color: var(--accent-dark);
            margin-bottom: 20px;
            transition: all var(--transition);
        }
        .feature-card:hover .feature-card-icon { background: var(--accent); color: #fff; }
        .feature-card h3 { font-size: 1.15rem; font-weight: 600; color: var(--text-dark); margin-bottom: 10px; }
        .feature-card p { font-size: 0.92rem; color: var(--text-muted); line-height: 1.7; margin: 0; }

        /* category entry */
        .category-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 28px; }
        .category-card {
            position: relative;
            border-radius: var(--radius-md);
            overflow: hidden;
            background: var(--bg-card);
            box-shadow: var(--shadow-sm);
            transition: all var(--transition);
            border: 1px solid var(--border-light);
            padding: 36px 32px;
            text-align: center;
        }
        .category-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); border-color: var(--accent); }
        .category-card-icon {
            width: 72px; height: 72px;
            margin: 0 auto 20px;
            background: rgba(201,168,76,0.08);
            border-radius: 50%;
            display: flex; align-items: center; justify-content: center;
            font-size: 1.8rem;
            color: var(--accent-dark);
            transition: all var(--transition);
        }
        .category-card:hover .category-card-icon { background: var(--accent); color: #fff; }
        .category-card h3 { font-size: 1.2rem; font-weight: 600; color: var(--text-dark); margin-bottom: 10px; }
        .category-card p { font-size: 0.92rem; color: var(--text-muted); margin-bottom: 18px; }
        .category-card .btn-link {
            color: var(--accent-dark);
            font-weight: 600;
            font-size: 0.9rem;
            display: inline-flex; align-items: center; gap: 6px;
            transition: all var(--transition);
        }
        .category-card .btn-link:hover { color: var(--accent); gap: 12px; }

        /* news list */
        .news-list { display: flex; flex-direction: column; gap: 20px; }
        .news-item {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            padding: 24px 28px;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-light);
            transition: all var(--transition);
            display: flex; flex-wrap: wrap; gap: 16px; align-items: flex-start;
        }
        .news-item:hover { transform: translateX(4px); box-shadow: var(--shadow-md); border-color: var(--accent); }
        .news-item-tag {
            display: inline-block;
            background: rgba(201,168,76,0.1);
            color: var(--accent-dark);
            font-size: 0.75rem;
            font-weight: 600;
            padding: 2px 14px;
            border-radius: 50px;
            white-space: nowrap;
        }
        .news-item-content { flex: 1; min-width: 200px; }
        .news-item-content h4 { font-size: 1.05rem; font-weight: 600; color: var(--text-dark); margin-bottom: 6px; }
        .news-item-content h4 a { color: var(--text-dark); }
        .news-item-content h4 a:hover { color: var(--accent-dark); }
        .news-item-content p { font-size: 0.9rem; color: var(--text-muted); margin: 0 0 8px; line-height: 1.6; }
        .news-item-meta { font-size: 0.8rem; color: var(--text-muted); display: flex; align-items: center; gap: 16px; flex-wrap: wrap; }
        .news-item-meta i { margin-right: 4px; font-size: 0.7rem; }
        .news-empty {
            text-align: center;
            padding: 40px 20px;
            background: var(--bg-card);
            border-radius: var(--radius-md);
            border: 1px dashed var(--border-light);
            color: var(--text-muted);
            font-size: 0.95rem;
        }

        /* stats / numbers */
        .stats-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(160px, 1fr)); gap: 28px; text-align: center; }
        .stat-item { padding: 20px; }
        .stat-number { font-size: 2.4rem; font-weight: 700; color: var(--accent); line-height: 1.2; }
        .stat-label { font-size: 0.9rem; color: rgba(255,255,255,0.6); margin-top: 6px; }

        /* process / journey */
        .process-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 24px; position: relative; }
        .process-step {
            text-align: center;
            padding: 28px 16px;
            background: rgba(255,255,255,0.04);
            border-radius: var(--radius-md);
            border: 1px solid rgba(201,168,76,0.12);
            transition: all var(--transition);
            position: relative;
        }
        .process-step:hover { background: rgba(255,255,255,0.08); border-color: rgba(201,168,76,0.25); transform: translateY(-3px); }
        .process-step-number {
            width: 44px; height: 44px;
            margin: 0 auto 16px;
            background: var(--accent);
            color: var(--primary);
            border-radius: 50%;
            display: flex; align-items: center; justify-content: center;
            font-weight: 700; font-size: 1rem;
        }
        .process-step h4 { font-size: 1rem; font-weight: 600; color: #fff; margin-bottom: 8px; }
        .process-step p { font-size: 0.85rem; color: rgba(255,255,255,0.55); margin: 0; line-height: 1.6; }

        /* faq */
        .faq-list { max-width: 800px; margin: 0 auto; }
        .faq-item {
            background: var(--bg-card);
            border-radius: var(--radius-sm);
            margin-bottom: 12px;
            border: 1px solid var(--border-light);
            overflow: hidden;
            transition: all var(--transition);
        }
        .faq-item:hover { border-color: var(--accent); box-shadow: var(--shadow-sm); }
        .faq-question {
            padding: 18px 24px;
            font-weight: 600;
            color: var(--text-dark);
            cursor: pointer;
            display: flex; justify-content: space-between; align-items: center;
            background: transparent;
            border: none;
            width: 100%;
            text-align: left;
            font-size: 0.95rem;
            transition: background var(--transition);
        }
        .faq-question:focus { outline: 2px solid var(--accent); outline-offset: -2px; }
        .faq-question i { transition: transform var(--transition); color: var(--accent); font-size: 0.85rem; }
        .faq-question[aria-expanded="true"] i { transform: rotate(180deg); }
        .faq-answer {
            padding: 0 24px 18px;
            font-size: 0.9rem;
            color: var(--text-muted);
            line-height: 1.7;
            display: none;
        }
        .faq-answer.show { display: block; }

        /* cta */
        .cta-section {
            padding: 80px 0;
            background: linear-gradient(135deg, var(--primary) 0%, #0b162e 100%);
            text-align: center;
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            top: -50%; left: -30%;
            width: 600px; height: 600px;
            background: radial-gradient(circle, rgba(201,168,76,0.08) 0%, transparent 70%);
            border-radius: 50%;
        }
        .cta-section h2 { font-size: clamp(1.6rem, 3vw, 2.4rem); font-weight: 700; color: #fff; margin-bottom: 16px; }
        .cta-section p { color: rgba(255,255,255,0.6); font-size: 1.05rem; max-width: 540px; margin: 0 auto 32px; }

        /* footer */
        .site-footer {
            background: #0a0f1e;
            color: rgba(255,255,255,0.5);
            padding: 48px 0 24px;
            font-size: 0.9rem;
        }
        .site-footer .footer-brand { font-size: 1.2rem; font-weight: 700; color: #fff; margin-bottom: 12px; display: flex; align-items: center; gap: 8px; }
        .site-footer .footer-brand i { color: var(--accent); }
        .site-footer p { margin-bottom: 8px; line-height: 1.6; }
        .site-footer a { color: rgba(255,255,255,0.5); }
        .site-footer a:hover { color: var(--accent-light); }
        .footer-links { list-style: none; padding: 0; margin: 0; display: flex; flex-wrap: wrap; gap: 8px 24px; justify-content: center; }
        .footer-links li a { font-size: 0.85rem; }
        .footer-divider { border-color: rgba(255,255,255,0.06); margin: 24px 0 16px; }
        .footer-copy { text-align: center; font-size: 0.8rem; color: rgba(255,255,255,0.3); }

        /* back to top */
        .back-top {
            position: fixed; bottom: 30px; right: 30px;
            width: 48px; height: 48px;
            background: var(--accent);
            color: var(--primary);
            border: none;
            border-radius: 50%;
            font-size: 1.2rem;
            display: flex; align-items: center; justify-content: center;
            box-shadow: var(--shadow-md);
            cursor: pointer;
            opacity: 0; visibility: hidden;
            transition: all var(--transition);
            z-index: 1040;
        }
        .back-top.visible { opacity: 1; visibility: visible; }
        .back-top:hover { background: var(--accent-light); transform: translateY(-3px); box-shadow: var(--shadow-lg); }

        /* responsive */
        @media (max-width: 768px) {
            .hero-section { padding: 110px 0 60px; min-height: auto; }
            .hero-title { font-size: 1.8rem; }
            .hero-desc { font-size: 1rem; }
            .hero-stats { gap: 20px; }
            .hero-stat-number { font-size: 1.4rem; }
            .section { padding: 48px 0; }
            .section-title { font-size: 1.4rem; }
            .feature-grid { grid-template-columns: 1fr; }
            .category-grid { grid-template-columns: 1fr; }
            .stats-grid { grid-template-columns: repeat(2, 1fr); gap: 16px; }
            .process-grid { grid-template-columns: 1fr 1fr; gap: 16px; }
            .news-item { padding: 18px 20px; }
            .news-item-content h4 { font-size: 0.95rem; }
            .faq-question { font-size: 0.88rem; padding: 14px 18px; }
            .cta-section { padding: 48px 0; }
            .site-footer { padding: 32px 0 16px; }
            .back-top { bottom: 20px; right: 20px; width: 40px; height: 40px; font-size: 1rem; }
        }
        @media (max-width: 520px) {
            .container { padding: 0 14px; }
            .hero-title { font-size: 1.5rem; }
            .hero-actions { flex-direction: column; }
            .hero-actions .btn { width: 100%; justify-content: center; }
            .hero-stats { flex-direction: column; gap: 12px; }
            .stats-grid { grid-template-columns: 1fr 1fr; }
            .process-grid { grid-template-columns: 1fr; }
            .category-grid { grid-template-columns: 1fr; }
            .footer-links { flex-direction: column; align-items: center; gap: 6px; }
        }

        /* utilities */
        .text-accent { color: var(--accent); }
        .text-accent-dark { color: var(--accent-dark); }
        .bg-accent-light { background: rgba(201,168,76,0.06); }
        .gap-2 { gap: 8px; }
        .gap-3 { gap: 16px; }
        .mt-1 { margin-top: 8px; }
        .mt-2 { margin-top: 16px; }
        .mt-3 { margin-top: 24px; }
        .mb-1 { margin-bottom: 8px; }
        .mb-2 { margin-bottom: 16px; }
        .mb-3 { margin-bottom: 24px; }
        .fw-600 { font-weight: 600; }

        /* smooth reveal */
        .reveal { opacity: 0; transform: translateY(30px); transition: opacity 0.6s ease, transform 0.6s ease; }
        .reveal.visible { opacity: 1; transform: translateY(0); }

/* roulang page: category1 */
/* ===== 设计变量 ===== */
        :root {
            --primary: #1a3a6b;
            --primary-light: #2a5a9e;
            --primary-dark: #0f2444;
            --accent: #e8b84b;
            --accent-light: #f0d08a;
            --accent-dark: #c99a2e;
            --bg-light: #f7f9fc;
            --bg-mid: #eef2f7;
            --bg-dark: #0d1b2f;
            --text-dark: #1a1a2e;
            --text-main: #2d3748;
            --text-muted: #6b7a8f;
            --text-light: #a0b0c4;
            --text-white: #f0f4f8;
            --border-color: #dce2eb;
            --radius-sm: 8px;
            --radius-md: 14px;
            --radius-lg: 22px;
            --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.04);
            --shadow-md: 0 6px 24px rgba(0, 0, 0, 0.07);
            --shadow-lg: 0 16px 48px rgba(0, 0, 0, 0.10);
            --shadow-accent: 0 4px 18px rgba(232, 184, 75, 0.30);
            --transition: all 0.25s ease;
            --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, 'Noto Sans SC', sans-serif;
            --container-max: 1200px;
            --nav-height: 72px;
        }

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

        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }

        body {
            font-family: var(--font-family);
            color: var(--text-main);
            background: var(--bg-light);
            line-height: 1.7;
            font-size: 1rem;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            padding-top: var(--nav-height);
        }

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

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

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

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

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

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

        /* ===== Header & Navigation ===== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1050;
            height: var(--nav-height);
            background: rgba(255, 255, 255, 0.94);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid rgba(220, 226, 235, 0.6);
            box-shadow: 0 1px 12px rgba(0, 0, 0, 0.03);
            transition: var(--transition);
        }

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

        .navbar {
            display: flex;
            align-items: center;
            justify-content: space-between;
            width: 100%;
            gap: 16px;
        }

        .site-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--primary-dark);
            letter-spacing: -0.3px;
            transition: var(--transition);
            flex-shrink: 0;
        }
        .site-logo i {
            color: var(--accent);
            font-size: 1.7rem;
            transition: var(--transition);
        }
        .site-logo:hover {
            color: var(--primary-light);
            text-decoration: none;
        }
        .site-logo:hover i {
            transform: rotate(-8deg) scale(1.05);
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 6px;
            margin: 0;
            padding: 0;
        }

        .nav-links .nav-item {
            margin: 0;
        }

        .nav-links .nav-item a {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 8px 20px;
            border-radius: 40px;
            font-size: 0.95rem;
            font-weight: 500;
            color: var(--text-main);
            transition: var(--transition);
            position: relative;
            white-space: nowrap;
        }

        .nav-links .nav-item a:hover {
            color: var(--primary);
            background: rgba(26, 58, 107, 0.06);
            text-decoration: none;
        }

        .nav-links .nav-item a.active {
            color: var(--primary-dark);
            background: rgba(26, 58, 107, 0.10);
            font-weight: 600;
        }

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

        .nav-links .nav-item a.nav-cta {
            background: var(--accent);
            color: var(--primary-dark);
            font-weight: 600;
            padding: 8px 24px;
            box-shadow: var(--shadow-accent);
            border: none;
        }
        .nav-links .nav-item a.nav-cta:hover {
            background: var(--accent-dark);
            color: #fff;
            box-shadow: 0 6px 24px rgba(201, 154, 46, 0.35);
            transform: translateY(-1px);
        }

        .navbar-toggler {
            display: none;
            background: none;
            border: none;
            font-size: 1.6rem;
            color: var(--primary-dark);
            cursor: pointer;
            padding: 4px 8px;
            border-radius: var(--radius-sm);
            transition: var(--transition);
        }
        .navbar-toggler:hover {
            background: rgba(26, 58, 107, 0.06);
        }
        .navbar-toggler:focus {
            outline: 2px solid var(--accent);
            outline-offset: 2px;
        }

        @media (max-width: 768px) {
            .navbar-toggler {
                display: block;
            }

            .nav-links {
                position: absolute;
                top: var(--nav-height);
                left: 0;
                right: 0;
                background: rgba(255, 255, 255, 0.98);
                backdrop-filter: blur(20px);
                -webkit-backdrop-filter: blur(20px);
                flex-direction: column;
                padding: 20px 24px 28px;
                gap: 8px;
                box-shadow: 0 20px 48px rgba(0, 0, 0, 0.10);
                border-bottom: 1px solid var(--border-color);
                transform: translateY(-12px);
                opacity: 0;
                visibility: hidden;
                pointer-events: none;
                transition: var(--transition);
                border-radius: 0 0 var(--radius-md) var(--radius-md);
            }

            .nav-links.show {
                transform: translateY(0);
                opacity: 1;
                visibility: visible;
                pointer-events: auto;
            }

            .nav-links .nav-item a {
                width: 100%;
                justify-content: center;
                padding: 12px 20px;
                font-size: 1.05rem;
            }

            .nav-links .nav-item a.active::after {
                bottom: 4px;
                width: 28px;
            }

            .nav-links .nav-item a.nav-cta {
                margin-top: 6px;
                width: 100%;
                justify-content: center;
            }
        }

        @media (max-width: 520px) {
            .site-logo {
                font-size: 1.25rem;
            }
            .site-logo i {
                font-size: 1.4rem;
            }
            .nav-links .nav-item a {
                font-size: 0.95rem;
                padding: 10px 16px;
            }
        }

        /* ===== Page Hero (分类页首屏) ===== */
        .page-hero {
            background: linear-gradient(138deg, var(--bg-dark) 0%, #162a48 60%, #1f3a5e 100%);
            padding: 80px 0 64px;
            position: relative;
            overflow: hidden;
            border-bottom: 4px solid var(--accent);
        }
        .page-hero::before {
            content: '';
            position: absolute;
            top: -30%;
            right: -10%;
            width: 500px;
            height: 500px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(232, 184, 75, 0.08) 0%, transparent 70%);
            pointer-events: none;
        }
        .page-hero::after {
            content: '';
            position: absolute;
            bottom: -20%;
            left: -8%;
            width: 400px;
            height: 400px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(255, 255, 255, 0.03) 0%, transparent 70%);
            pointer-events: none;
        }

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

        .page-hero h1 {
            font-size: 2.8rem;
            font-weight: 800;
            color: #fff;
            letter-spacing: -0.5px;
            line-height: 1.2;
            margin-bottom: 16px;
        }
        .page-hero h1 i {
            color: var(--accent);
            margin-right: 10px;
        }

        .page-hero .hero-sub {
            font-size: 1.15rem;
            color: var(--text-light);
            max-width: 680px;
            line-height: 1.7;
            margin-bottom: 24px;
        }

        .page-hero .hero-badges {
            display: flex;
            flex-wrap: wrap;
            gap: 10px 18px;
            margin-top: 8px;
        }
        .page-hero .hero-badges span {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: rgba(255, 255, 255, 0.07);
            backdrop-filter: blur(4px);
            padding: 6px 18px;
            border-radius: 40px;
            color: var(--text-white);
            font-size: 0.9rem;
            font-weight: 500;
            border: 1px solid rgba(255, 255, 255, 0.06);
        }
        .page-hero .hero-badges span i {
            color: var(--accent);
        }

        @media (max-width: 768px) {
            .page-hero {
                padding: 56px 0 48px;
            }
            .page-hero h1 {
                font-size: 2rem;
            }
            .page-hero .hero-sub {
                font-size: 1rem;
            }
        }
        @media (max-width: 520px) {
            .page-hero h1 {
                font-size: 1.6rem;
            }
            .page-hero .hero-badges span {
                font-size: 0.8rem;
                padding: 4px 14px;
            }
        }

        /* ===== 通用板块标题 ===== */
        .section-title {
            font-size: 2rem;
            font-weight: 700;
            color: var(--primary-dark);
            margin-bottom: 12px;
            letter-spacing: -0.3px;
            line-height: 1.3;
        }
        .section-title i {
            color: var(--accent);
            margin-right: 8px;
        }
        .section-sub {
            font-size: 1.05rem;
            color: var(--text-muted);
            max-width: 640px;
            margin-bottom: 32px;
            line-height: 1.7;
        }

        @media (max-width: 768px) {
            .section-title {
                font-size: 1.6rem;
            }
            .section-sub {
                font-size: 0.95rem;
            }
        }

        /* ===== 注册流程步骤 ===== */
        .steps-section {
            padding: 72px 0 60px;
            background: #fff;
        }

        .step-card {
            display: flex;
            gap: 20px;
            padding: 28px 24px;
            background: var(--bg-light);
            border-radius: var(--radius-md);
            border: 1px solid var(--border-color);
            transition: var(--transition);
            position: relative;
            margin-bottom: 20px;
        }
        .step-card:hover {
            border-color: var(--accent-light);
            box-shadow: var(--shadow-md);
            transform: translateY(-2px);
        }
        .step-card .step-num {
            flex-shrink: 0;
            width: 52px;
            height: 52px;
            border-radius: 50%;
            background: var(--primary);
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.4rem;
            font-weight: 700;
            box-shadow: 0 4px 12px rgba(26, 58, 107, 0.20);
        }
        .step-card .step-body h5 {
            font-size: 1.15rem;
            font-weight: 600;
            color: var(--primary-dark);
            margin-bottom: 6px;
        }
        .step-card .step-body p {
            color: var(--text-muted);
            font-size: 0.95rem;
            margin: 0;
            line-height: 1.6;
        }

        @media (max-width: 520px) {
            .step-card {
                flex-direction: column;
                align-items: flex-start;
                gap: 12px;
                padding: 20px 18px;
            }
            .step-card .step-num {
                width: 44px;
                height: 44px;
                font-size: 1.2rem;
            }
        }

        /* ===== 注意事项 / 提示卡 ===== */
        .tips-section {
            padding: 60px 0;
            background: var(--bg-mid);
        }

        .tip-card {
            background: #fff;
            border-radius: var(--radius-md);
            padding: 28px 24px;
            border-left: 4px solid var(--accent);
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
            height: 100%;
        }
        .tip-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-2px);
        }
        .tip-card .tip-icon {
            font-size: 1.8rem;
            color: var(--accent);
            margin-bottom: 12px;
        }
        .tip-card h5 {
            font-size: 1.1rem;
            font-weight: 600;
            color: var(--primary-dark);
            margin-bottom: 8px;
        }
        .tip-card p {
            color: var(--text-muted);
            font-size: 0.93rem;
            margin: 0;
            line-height: 1.6;
        }

        /* ===== 注册优势 ===== */
        .benefits-section {
            padding: 72px 0 64px;
            background: #fff;
        }

        .benefit-item {
            text-align: center;
            padding: 28px 16px;
            border-radius: var(--radius-md);
            background: var(--bg-light);
            border: 1px solid var(--border-color);
            transition: var(--transition);
            height: 100%;
        }
        .benefit-item:hover {
            border-color: var(--accent-light);
            box-shadow: var(--shadow-md);
            transform: translateY(-3px);
        }
        .benefit-item .benefit-icon {
            font-size: 2.4rem;
            color: var(--accent);
            margin-bottom: 14px;
        }
        .benefit-item h5 {
            font-size: 1.1rem;
            font-weight: 600;
            color: var(--primary-dark);
            margin-bottom: 8px;
        }
        .benefit-item p {
            font-size: 0.93rem;
            color: var(--text-muted);
            margin: 0;
            line-height: 1.6;
        }

        /* ===== FAQ ===== */
        .faq-section {
            padding: 72px 0 64px;
            background: var(--bg-light);
        }

        .faq-accordion .accordion-item {
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md) !important;
            margin-bottom: 12px;
            overflow: hidden;
            background: #fff;
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
        }
        .faq-accordion .accordion-item:hover {
            box-shadow: var(--shadow-md);
        }
        .faq-accordion .accordion-button {
            font-weight: 600;
            color: var(--text-dark);
            background: #fff;
            padding: 18px 24px;
            font-size: 1rem;
            border: none;
            box-shadow: none;
        }
        .faq-accordion .accordion-button:not(.collapsed) {
            color: var(--primary-dark);
            background: rgba(232, 184, 75, 0.06);
            box-shadow: none;
        }
        .faq-accordion .accordion-button::after {
            background-size: 1.2rem;
            transition: var(--transition);
        }
        .faq-accordion .accordion-button:focus {
            box-shadow: none;
            border-color: var(--accent);
        }
        .faq-accordion .accordion-body {
            padding: 0 24px 20px;
            color: var(--text-muted);
            font-size: 0.95rem;
            line-height: 1.7;
        }

        /* ===== CTA ===== */
        .cta-section {
            padding: 72px 0;
            background: linear-gradient(138deg, var(--primary-dark) 0%, #1f3a5e 100%);
            text-align: center;
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            top: -50%;
            left: -20%;
            width: 600px;
            height: 600px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(232, 184, 75, 0.06) 0%, transparent 70%);
            pointer-events: none;
        }
        .cta-section .container {
            position: relative;
            z-index: 2;
        }
        .cta-section h2 {
            font-size: 2.2rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 16px;
        }
        .cta-section h2 i {
            color: var(--accent);
        }
        .cta-section p {
            font-size: 1.1rem;
            color: var(--text-light);
            max-width: 560px;
            margin: 0 auto 28px;
            line-height: 1.7;
        }
        .cta-section .btn-cta {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            background: var(--accent);
            color: var(--primary-dark);
            font-weight: 700;
            font-size: 1.15rem;
            padding: 16px 44px;
            border-radius: 50px;
            border: none;
            box-shadow: var(--shadow-accent);
            transition: var(--transition);
            text-decoration: none;
        }
        .cta-section .btn-cta:hover {
            background: var(--accent-dark);
            color: #fff;
            transform: translateY(-2px) scale(1.02);
            box-shadow: 0 8px 32px rgba(201, 154, 46, 0.40);
            text-decoration: none;
        }

        @media (max-width: 768px) {
            .cta-section h2 {
                font-size: 1.6rem;
            }
            .cta-section p {
                font-size: 1rem;
            }
            .cta-section .btn-cta {
                font-size: 1rem;
                padding: 14px 32px;
            }
        }

        /* ===== 相关资源 ===== */
        .resources-section {
            padding: 72px 0 64px;
            background: #fff;
        }

        .resource-card {
            background: var(--bg-light);
            border-radius: var(--radius-md);
            padding: 24px 20px;
            border: 1px solid var(--border-color);
            transition: var(--transition);
            height: 100%;
            display: flex;
            flex-direction: column;
        }
        .resource-card:hover {
            border-color: var(--accent-light);
            box-shadow: var(--shadow-md);
            transform: translateY(-2px);
        }
        .resource-card .rc-icon {
            font-size: 2rem;
            color: var(--accent);
            margin-bottom: 12px;
        }
        .resource-card h5 {
            font-size: 1.1rem;
            font-weight: 600;
            color: var(--primary-dark);
            margin-bottom: 8px;
        }
        .resource-card p {
            font-size: 0.93rem;
            color: var(--text-muted);
            margin-bottom: 16px;
            line-height: 1.6;
            flex: 1;
        }
        .resource-card .rc-link {
            font-weight: 600;
            color: var(--primary-light);
            display: inline-flex;
            align-items: center;
            gap: 6px;
            transition: var(--transition);
        }
        .resource-card .rc-link:hover {
            color: var(--accent-dark);
            gap: 10px;
        }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--bg-dark);
            color: var(--text-light);
            padding: 48px 0 24px;
            border-top: 3px solid var(--accent);
        }
        .site-footer .footer-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.5rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 12px;
        }
        .site-footer .footer-brand i {
            color: var(--accent);
        }
        .site-footer p {
            font-size: 0.95rem;
            color: var(--text-light);
            line-height: 1.7;
            max-width: 480px;
            margin: 0 auto 20px;
        }
        .site-footer .footer-links {
            display: flex;
            justify-content: center;
            flex-wrap: wrap;
            gap: 8px 24px;
            margin: 0 0 20px;
            padding: 0;
        }
        .site-footer .footer-links li {
            margin: 0;
        }
        .site-footer .footer-links a {
            color: var(--text-light);
            font-size: 0.92rem;
            transition: var(--transition);
            padding: 4px 0;
            border-bottom: 2px solid transparent;
        }
        .site-footer .footer-links a:hover {
            color: var(--accent);
            border-bottom-color: var(--accent);
            text-decoration: none;
        }
        .site-footer .footer-divider {
            border: none;
            border-top: 1px solid rgba(255, 255, 255, 0.06);
            margin: 16px 0 20px;
            opacity: 1;
        }
        .site-footer .footer-copy {
            text-align: center;
            font-size: 0.85rem;
            color: var(--text-light);
            opacity: 0.7;
            letter-spacing: 0.3px;
        }

        @media (max-width: 520px) {
            .site-footer .footer-links {
                gap: 6px 16px;
            }
            .site-footer .footer-links a {
                font-size: 0.85rem;
            }
            .site-footer .footer-brand {
                font-size: 1.3rem;
                justify-content: center;
            }
            .site-footer p {
                font-size: 0.88rem;
                text-align: center;
            }
        }

        /* ===== 辅助 ===== */
        .text-accent {
            color: var(--accent);
        }
        .bg-primary-soft {
            background: rgba(26, 58, 107, 0.03);
        }

        .mb-gap {
            margin-bottom: 24px;
        }

        /* ===== 响应式微调 ===== */
        @media (max-width: 768px) {
            body {
                font-size: 0.95rem;
            }
            .row.gap-mobile {
                --bs-gutter-y: 20px;
            }
        }

        @media (max-width: 520px) {
            :root {
                --nav-height: 64px;
            }
            body {
                font-size: 0.9rem;
            }
            .section-title {
                font-size: 1.4rem;
            }
        }

        /* Bootstrap 覆盖：按钮、卡片等 */
        .btn {
            border-radius: 40px;
            font-weight: 600;
            padding: 10px 28px;
            transition: var(--transition);
        }
        .btn-primary {
            background: var(--primary);
            border-color: var(--primary);
            color: #fff;
        }
        .btn-primary:hover {
            background: var(--primary-light);
            border-color: var(--primary-light);
            transform: translateY(-1px);
            box-shadow: 0 4px 16px rgba(26, 58, 107, 0.25);
        }
        .btn-outline-primary {
            border-color: var(--primary);
            color: var(--primary);
        }
        .btn-outline-primary:hover {
            background: var(--primary);
            color: #fff;
            border-color: var(--primary);
        }

        .card {
            border-radius: var(--radius-md);
            border: 1px solid var(--border-color);
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
        }
        .card:hover {
            box-shadow: var(--shadow-md);
        }

        .badge {
            font-weight: 500;
            border-radius: 40px;
            padding: 4px 14px;
        }
        .badge-accent {
            background: var(--accent);
            color: var(--primary-dark);
        }

/* roulang page: article */
/* ===== 设计变量 ===== */
        :root {
            --primary: #1a2a6c;
            --primary-light: #2d4a9e;
            --primary-dark: #0f1a45;
            --accent: #e8b830;
            --accent-light: #f0d060;
            --accent-dark: #c9a020;
            --bg-body: #f7f8fc;
            --bg-white: #ffffff;
            --bg-alt: #eef0f7;
            --bg-dark: #0f1a45;
            --text-primary: #1a1a2e;
            --text-secondary: #4a4a6a;
            --text-muted: #8888a0;
            --text-light: #f0f0f5;
            --border: #dce0ec;
            --border-light: #eef0f7;
            --radius-sm: 8px;
            --radius-md: 14px;
            --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 12px 40px rgba(26,42,108,0.14);
            --shadow-accent: 0 4px 16px rgba(232,184,48,0.30);
            --transition: 0.25s ease;
            --font-sans: system-ui, -apple-system, 'Segoe UI', Roboto, 'Helvetica Neue', 'Noto Sans', Arial, sans-serif;
            --container-max: 1200px;
            --nav-height: 72px;
        }

        /* ===== Reset & Base ===== */
        *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
        html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
        body {
            font-family: var(--font-sans);
            font-size: 1rem;
            line-height: 1.7;
            color: var(--text-primary);
            background: var(--bg-body);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            padding-top: var(--nav-height);
        }
        img { max-width: 100%; height: auto; display: block; }
        a { color: var(--primary-light); text-decoration: none; transition: color var(--transition); }
        a:hover { color: var(--primary); }
        a:focus-visible { outline: 3px solid var(--accent); outline-offset: 2px; border-radius: 4px; }
        button { cursor: pointer; font-family: inherit; }
        input, textarea, select { font-family: inherit; font-size: 1rem; }
        ul, ol { list-style: none; padding: 0; margin: 0; }
        h1, h2, h3, h4, h5, h6 { line-height: 1.3; font-weight: 700; color: var(--text-primary); }
        .container { max-width: var(--container-max); margin: 0 auto; padding: 0 24px; }
        @media (max-width: 768px) { .container { padding: 0 16px; } }

        /* ===== 导航 ===== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1050;
            height: var(--nav-height);
            background: rgba(255,255,255,0.92);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border-light);
            box-shadow: var(--shadow-sm);
            transition: box-shadow var(--transition);
        }
        .site-header.scrolled { box-shadow: var(--shadow-md); }
        .site-header .container { height: 100%; display: flex; align-items: center; }
        .navbar {
            display: flex;
            align-items: center;
            justify-content: space-between;
            width: 100%;
            height: 100%;
        }
        .site-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.55rem;
            font-weight: 800;
            color: var(--primary);
            letter-spacing: -0.5px;
            flex-shrink: 0;
        }
        .site-logo i { color: var(--accent); font-size: 1.4rem; }
        .site-logo:hover { color: var(--primary-dark); }
        .nav-links {
            display: flex;
            align-items: center;
            gap: 4px;
            margin: 0;
            padding: 0;
            list-style: none;
        }
        .nav-links .nav-item { margin: 0; }
        .nav-links .nav-item a {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 8px 18px;
            border-radius: 40px;
            font-size: 0.92rem;
            font-weight: 500;
            color: var(--text-secondary);
            transition: all var(--transition);
            position: relative;
            white-space: nowrap;
        }
        .nav-links .nav-item a:hover { color: var(--primary); background: var(--bg-alt); }
        .nav-links .nav-item a.active {
            color: var(--primary);
            background: rgba(26,42,108,0.08);
            font-weight: 600;
        }
        .nav-links .nav-item a.nav-cta {
            background: var(--primary);
            color: #fff;
            padding: 8px 22px;
            border-radius: 40px;
            font-weight: 600;
            box-shadow: var(--shadow-sm);
            margin-left: 8px;
        }
        .nav-links .nav-item a.nav-cta:hover {
            background: var(--primary-light);
            box-shadow: var(--shadow-md);
            transform: translateY(-1px);
            color: #fff;
        }
        .navbar-toggler {
            display: none;
            background: none;
            border: none;
            font-size: 1.5rem;
            color: var(--primary);
            padding: 8px 12px;
            border-radius: var(--radius-sm);
            transition: background var(--transition);
        }
        .navbar-toggler:hover { background: var(--bg-alt); }
        .navbar-toggler:focus-visible { outline: 3px solid var(--accent); outline-offset: 2px; }

        @media (max-width: 900px) {
            .navbar-toggler { display: block; }
            .nav-links {
                position: fixed;
                top: var(--nav-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: 16px 24px 24px;
                gap: 6px;
                border-bottom: 1px solid var(--border);
                box-shadow: var(--shadow-lg);
                transform: translateY(-120%);
                opacity: 0;
                pointer-events: none;
                transition: all 0.35s cubic-bezier(0.4, 0, 0.2, 1);
                max-height: calc(100vh - var(--nav-height));
                overflow-y: auto;
                border-radius: 0 0 var(--radius-md) var(--radius-md);
            }
            .nav-links.open {
                transform: translateY(0);
                opacity: 1;
                pointer-events: auto;
            }
            .nav-links .nav-item a {
                width: 100%;
                padding: 12px 20px;
                border-radius: var(--radius-sm);
                font-size: 1rem;
            }
            .nav-links .nav-item a.nav-cta {
                margin-left: 0;
                margin-top: 6px;
                justify-content: center;
            }
            .nav-links .nav-item a.active {
                background: rgba(26,42,108,0.06);
            }
        }
        @media (max-width: 520px) {
            .site-logo { font-size: 1.3rem; }
            .site-logo i { font-size: 1.2rem; }
            .nav-links { padding: 12px 16px 20px; }
        }

        /* ===== 面包屑 ===== */
        .breadcrumb-wrap {
            padding: 20px 0 0;
            background: var(--bg-body);
        }
        .breadcrumb-wrap .breadcrumb {
            background: none;
            padding: 0;
            margin: 0;
            font-size: 0.88rem;
        }
        .breadcrumb-wrap .breadcrumb-item + .breadcrumb-item::before {
            content: "›";
            color: var(--text-muted);
            font-size: 1.1rem;
            line-height: 1;
        }
        .breadcrumb-wrap .breadcrumb-item a { color: var(--text-muted); }
        .breadcrumb-wrap .breadcrumb-item a:hover { color: var(--primary-light); }
        .breadcrumb-wrap .breadcrumb-item.active { color: var(--text-secondary); }

        /* ===== 文章主体 ===== */
        .article-main {
            padding: 32px 0 60px;
            background: var(--bg-body);
        }
        .article-card {
            background: var(--bg-white);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-sm);
            padding: 40px 48px 48px;
            border: 1px solid var(--border-light);
            transition: box-shadow var(--transition);
        }
        .article-card:hover { box-shadow: var(--shadow-md); }
        .article-header { margin-bottom: 32px; }
        .article-category {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: rgba(26,42,108,0.06);
            color: var(--primary);
            font-size: 0.82rem;
            font-weight: 600;
            padding: 4px 14px;
            border-radius: 40px;
            margin-bottom: 16px;
            letter-spacing: 0.3px;
        }
        .article-category i { font-size: 0.7rem; }
        .article-title {
            font-size: 2rem;
            font-weight: 800;
            line-height: 1.25;
            color: var(--text-primary);
            margin-bottom: 16px;
            letter-spacing: -0.3px;
        }
        .article-meta {
            display: flex;
            flex-wrap: wrap;
            gap: 20px 32px;
            color: var(--text-muted);
            font-size: 0.88rem;
            align-items: center;
        }
        .article-meta span { display: inline-flex; align-items: center; gap: 6px; }
        .article-meta i { font-size: 0.8rem; color: var(--primary-light); }
        .article-meta .meta-author { color: var(--text-secondary); font-weight: 500; }

        .article-featured-image {
            margin: 24px 0 32px;
            border-radius: var(--radius-md);
            overflow: hidden;
            background: var(--bg-alt);
        }
        .article-featured-image img {
            width: 100%;
            object-fit: cover;
            max-height: 480px;
        }

        .article-body {
            font-size: 1.05rem;
            line-height: 1.85;
            color: var(--text-primary);
        }
        .article-body p { margin-bottom: 1.2em; }
        .article-body h2, .article-body h3, .article-body h4 {
            margin-top: 1.6em;
            margin-bottom: 0.6em;
            font-weight: 700;
            color: var(--text-primary);
        }
        .article-body h2 { font-size: 1.55rem; }
        .article-body h3 { font-size: 1.25rem; }
        .article-body ul, .article-body ol { padding-left: 1.5em; margin-bottom: 1.2em; list-style: disc; }
        .article-body ol { list-style: decimal; }
        .article-body li { margin-bottom: 0.4em; }
        .article-body blockquote {
            border-left: 4px solid var(--accent);
            background: var(--bg-alt);
            padding: 16px 24px;
            margin: 1.5em 0;
            border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
            color: var(--text-secondary);
            font-style: italic;
        }
        .article-body a { color: var(--primary-light); font-weight: 500; text-decoration: underline; text-underline-offset: 2px; }
        .article-body a:hover { color: var(--primary); }
        .article-body img { border-radius: var(--radius-sm); margin: 1.2em 0; }
        .article-body table { width: 100%; border-collapse: collapse; margin: 1.2em 0; }
        .article-body th, .article-body td { padding: 10px 16px; border: 1px solid var(--border); text-align: left; }
        .article-body th { background: var(--bg-alt); font-weight: 600; }
        .article-body code { background: var(--bg-alt); padding: 2px 8px; border-radius: 4px; font-size: 0.9em; }

        /* ===== 标签分享 ===== */
        .article-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            margin-top: 36px;
            padding-top: 24px;
            border-top: 1px solid var(--border-light);
        }
        .article-tags .tag-label {
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--text-muted);
            display: inline-flex;
            align-items: center;
            gap: 6px;
            margin-right: 8px;
        }
        .article-tags .tag-item {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            background: var(--bg-alt);
            color: var(--text-secondary);
            font-size: 0.82rem;
            padding: 4px 14px;
            border-radius: 40px;
            transition: all var(--transition);
            border: 1px solid transparent;
        }
        .article-tags .tag-item:hover {
            background: var(--primary);
            color: #fff;
            border-color: var(--primary);
        }
        .article-share {
            display: flex;
            align-items: center;
            gap: 10px;
            margin-top: 16px;
        }
        .article-share span { font-size: 0.85rem; color: var(--text-muted); font-weight: 500; }
        .article-share a {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 38px;
            height: 38px;
            border-radius: 50%;
            background: var(--bg-alt);
            color: var(--text-secondary);
            font-size: 0.95rem;
            transition: all var(--transition);
        }
        .article-share a:hover { background: var(--primary); color: #fff; transform: translateY(-2px); }

        /* ===== 文章导航 ===== */
        .article-nav {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            margin-top: 40px;
            padding-top: 24px;
            border-top: 1px solid var(--border-light);
        }
        .article-nav .nav-prev,
        .article-nav .nav-next {
            flex: 1;
            min-width: 200px;
        }
        .article-nav a {
            display: flex;
            flex-direction: column;
            gap: 4px;
            padding: 16px 20px;
            border-radius: var(--radius-md);
            background: var(--bg-alt);
            transition: all var(--transition);
            border: 1px solid transparent;
        }
        .article-nav a:hover {
            background: var(--bg-white);
            border-color: var(--border);
            box-shadow: var(--shadow-sm);
            transform: translateY(-2px);
        }
        .article-nav .nav-label {
            font-size: 0.78rem;
            color: var(--text-muted);
            font-weight: 500;
            text-transform: uppercase;
            letter-spacing: 0.5px;
        }
        .article-nav .nav-title {
            font-size: 0.95rem;
            font-weight: 600;
            color: var(--text-primary);
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
        }
        .article-nav a:hover .nav-title { color: var(--primary); }

        /* ===== 相关推荐 ===== */
        .related-section {
            padding: 60px 0 40px;
            background: var(--bg-alt);
        }
        .related-section .section-title {
            font-size: 1.6rem;
            font-weight: 700;
            margin-bottom: 8px;
            color: var(--text-primary);
        }
        .related-section .section-sub {
            color: var(--text-muted);
            font-size: 0.95rem;
            margin-bottom: 32px;
        }
        .related-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .related-card {
            background: var(--bg-white);
            border-radius: var(--radius-md);
            overflow: hidden;
            border: 1px solid var(--border-light);
            transition: all var(--transition);
            box-shadow: var(--shadow-sm);
        }
        .related-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-lg);
            border-color: var(--border);
        }
        .related-card .card-img {
            height: 180px;
            background: var(--bg-alt);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--text-muted);
            font-size: 2rem;
            overflow: hidden;
        }
        .related-card .card-img img { width: 100%; height: 100%; object-fit: cover; }
        .related-card .card-body { padding: 20px 20px 22px; }
        .related-card .card-cat {
            font-size: 0.75rem;
            font-weight: 600;
            color: var(--accent-dark);
            text-transform: uppercase;
            letter-spacing: 0.5px;
            margin-bottom: 8px;
        }
        .related-card .card-title {
            font-size: 1.05rem;
            font-weight: 700;
            line-height: 1.4;
            color: var(--text-primary);
            margin-bottom: 8px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .related-card .card-title a { color: inherit; }
        .related-card .card-title a:hover { color: var(--primary-light); }
        .related-card .card-meta {
            font-size: 0.82rem;
            color: var(--text-muted);
            display: flex;
            align-items: center;
            gap: 12px;
        }

        @media (max-width: 992px) {
            .related-grid { grid-template-columns: repeat(2, 1fr); }
        }
        @media (max-width: 600px) {
            .related-grid { grid-template-columns: 1fr; }
            .related-card .card-img { height: 200px; }
        }

        /* ===== CTA ===== */
        .article-cta {
            padding: 60px 0 80px;
            background: var(--bg-body);
        }
        .cta-box {
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
            border-radius: var(--radius-xl);
            padding: 48px 56px;
            text-align: center;
            color: #fff;
            box-shadow: var(--shadow-lg);
            position: relative;
            overflow: hidden;
        }
        .cta-box::before {
            content: '';
            position: absolute;
            inset: 0;
            background: radial-gradient(circle at 20% 80%, rgba(232,184,48,0.15) 0%, transparent 60%);
            pointer-events: none;
        }
        .cta-box h3 {
            font-size: 1.8rem;
            font-weight: 800;
            color: #fff;
            margin-bottom: 12px;
            position: relative;
        }
        .cta-box p {
            font-size: 1.05rem;
            color: rgba(255,255,255,0.85);
            max-width: 540px;
            margin: 0 auto 28px;
            line-height: 1.6;
            position: relative;
        }
        .cta-box .btn-cta {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            background: var(--accent);
            color: var(--primary-dark);
            font-weight: 700;
            font-size: 1rem;
            padding: 14px 36px;
            border-radius: 60px;
            border: none;
            transition: all var(--transition);
            box-shadow: var(--shadow-accent);
            position: relative;
        }
        .cta-box .btn-cta:hover {
            background: var(--accent-light);
            box-shadow: 0 8px 28px rgba(232,184,48,0.45);
            transform: translateY(-2px);
            color: var(--primary-dark);
        }
        .cta-box .btn-cta i { font-size: 0.9rem; }

        @media (max-width: 768px) {
            .cta-box { padding: 36px 24px; }
            .cta-box h3 { font-size: 1.4rem; }
            .cta-box p { font-size: 0.95rem; }
        }

        /* ===== 页脚 ===== */
        .site-footer {
            background: var(--bg-dark);
            color: rgba(255,255,255,0.75);
            padding: 48px 0 28px;
            font-size: 0.9rem;
        }
        .site-footer .footer-brand {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 10px;
            font-size: 1.5rem;
            font-weight: 800;
            color: #fff;
            margin-bottom: 12px;
        }
        .site-footer .footer-brand i { color: var(--accent); }
        .site-footer p { max-width: 480px; margin: 0 auto 20px; line-height: 1.6; color: rgba(255,255,255,0.6); }
        .footer-links {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 8px 24px;
            margin: 0 0 20px;
            padding: 0;
            list-style: none;
        }
        .footer-links li a {
            color: rgba(255,255,255,0.7);
            font-weight: 500;
            font-size: 0.88rem;
            padding: 4px 0;
            transition: color var(--transition);
            position: relative;
        }
        .footer-links li a::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            height: 2px;
            background: var(--accent);
            transform: scaleX(0);
            transition: transform var(--transition);
            transform-origin: center;
        }
        .footer-links li a:hover { color: #fff; }
        .footer-links li a:hover::after { transform: scaleX(1); }
        .footer-divider {
            border: none;
            border-top: 1px solid rgba(255,255,255,0.1);
            margin: 16px 0 20px;
            opacity: 0.6;
        }
        .footer-copy {
            text-align: center;
            font-size: 0.82rem;
            color: rgba(255,255,255,0.4);
        }

        @media (max-width: 600px) {
            .footer-links { gap: 4px 16px; }
            .footer-links li a { font-size: 0.82rem; }
        }

        /* ===== 内容未找到 ===== */
        .not-found-box {
            text-align: center;
            padding: 60px 20px;
        }
        .not-found-box i {
            font-size: 3.5rem;
            color: var(--text-muted);
            margin-bottom: 20px;
            display: block;
        }
        .not-found-box h2 {
            font-size: 1.6rem;
            color: var(--text-primary);
            margin-bottom: 12px;
        }
        .not-found-box p {
            color: var(--text-muted);
            margin-bottom: 24px;
        }
        .not-found-box .btn-home {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: var(--primary);
            color: #fff;
            padding: 12px 28px;
            border-radius: 40px;
            font-weight: 600;
            transition: all var(--transition);
            border: none;
        }
        .not-found-box .btn-home:hover {
            background: var(--primary-light);
            transform: translateY(-2px);
            box-shadow: var(--shadow-md);
            color: #fff;
        }

        /* ===== 辅助类 ===== */
        .text-center { text-align: center; }
        .mb-1 { margin-bottom: 8px; }
        .mb-2 { margin-bottom: 16px; }
        .mb-3 { margin-bottom: 24px; }
        .mt-2 { margin-top: 16px; }
        .mt-3 { margin-top: 24px; }
        .mt-4 { margin-top: 32px; }

        @media (max-width: 768px) {
            .article-card { padding: 24px 20px 32px; }
            .article-title { font-size: 1.5rem; }
            .article-body { font-size: 1rem; }
            .article-meta { gap: 12px 20px; font-size: 0.82rem; }
            .article-nav { flex-direction: column; }
            .article-nav .nav-prev, .article-nav .nav-next { min-width: auto; }
        }
        @media (max-width: 520px) {
            .article-card { padding: 16px 14px 24px; border-radius: var(--radius-md); }
            .article-title { font-size: 1.25rem; }
            .article-meta { flex-direction: column; gap: 8px; }
            .cta-box { border-radius: var(--radius-lg); }
            .cta-box .btn-cta { width: 100%; justify-content: center; }
        }

        /* ===== 加载动画 ===== */
        .fade-in { animation: fadeIn 0.5s ease forwards; }
        @keyframes fadeIn { from { opacity: 0; transform: translateY(12px); } to { opacity: 1; transform: translateY(0); } }

/* roulang page: category2 */
/* ===== 设计变量 ===== */
        :root {
            --primary: #d4a853;
            --primary-dark: #b88d3a;
            --primary-light: #e8c97a;
            --secondary: #1a1a2e;
            --secondary-light: #2a2a4a;
            --accent: #e85d3a;
            --accent-light: #f07a5a;
            --bg-dark: #0f0f1a;
            --bg-card: #1a1a2e;
            --bg-card-hover: #222240;
            --bg-section: #12121f;
            --bg-light: #f8f6f0;
            --text-light: #f5f0e8;
            --text-muted: #a09888;
            --text-body: #e0dcd0;
            --border-color: #2a2a44;
            --border-light: #3a3a5a;
            --radius-sm: 6px;
            --radius-md: 12px;
            --radius-lg: 20px;
            --radius-xl: 28px;
            --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.25);
            --shadow-md: 0 8px 30px rgba(0, 0, 0, 0.35);
            --shadow-lg: 0 20px 60px rgba(0, 0, 0, 0.5);
            --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --font-sans: 'Segoe UI', system-ui, -apple-system, 'Helvetica Neue', Arial, sans-serif;
            --max-width: 1200px;
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--font-sans);
            background-color: var(--bg-dark);
            color: var(--text-body);
            line-height: 1.7;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            overflow-x: hidden;
        }

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

        img {
            max-width: 100%;
            height: auto;
            display: block;
        }

        button {
            cursor: pointer;
            font-family: inherit;
        }

        input,
        textarea {
            font-family: inherit;
        }

        ul,
        ol {
            list-style: none;
        }

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

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

        /* ===== 导航 ===== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            background: rgba(15, 15, 26, 0.92);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid rgba(212, 168, 83, 0.15);
            transition: var(--transition);
        }

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

        .navbar {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 12px 0;
            min-height: 64px;
        }

        .site-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--text-light);
            letter-spacing: 0.5px;
            transition: var(--transition);
        }
        .site-logo i {
            color: var(--primary);
            font-size: 1.6rem;
        }
        .site-logo:hover {
            color: var(--primary);
            transform: scale(1.02);
        }

        .navbar-toggler {
            display: none;
            background: transparent;
            border: 1px solid var(--border-light);
            color: var(--text-light);
            font-size: 1.4rem;
            padding: 6px 14px;
            border-radius: var(--radius-sm);
            transition: var(--transition);
        }
        .navbar-toggler:hover {
            border-color: var(--primary);
            color: var(--primary);
        }

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

        .nav-item {
            position: relative;
        }

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

        .nav-item a:hover {
            color: var(--text-light);
            background: rgba(212, 168, 83, 0.08);
        }

        .nav-item a.active {
            color: var(--primary);
            background: rgba(212, 168, 83, 0.12);
        }

        .nav-item a.active::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 50%;
            transform: translateX(-50%);
            width: 60%;
            height: 2px;
            background: var(--primary);
            border-radius: 2px;
        }

        .nav-cta {
            background: linear-gradient(135deg, var(--primary), var(--primary-dark)) !important;
            color: var(--bg-dark) !important;
            font-weight: 600 !important;
            padding: 8px 24px !important;
            border-radius: 50px !important;
            margin-left: 12px;
            box-shadow: 0 4px 16px rgba(212, 168, 83, 0.25);
            transition: var(--transition) !important;
        }
        .nav-cta i {
            margin-right: 6px;
            font-size: 0.85rem;
        }
        .nav-cta:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 28px rgba(212, 168, 83, 0.35);
            color: var(--bg-dark) !important;
            background: linear-gradient(135deg, var(--primary-light), var(--primary)) !important;
        }

        @media (max-width: 768px) {
            .navbar-toggler {
                display: block;
            }

            .nav-links {
                display: none;
                flex-direction: column;
                position: absolute;
                top: 64px;
                left: 0;
                right: 0;
                background: rgba(15, 15, 26, 0.98);
                backdrop-filter: blur(20px);
                padding: 16px 20px;
                border-bottom: 1px solid var(--border-color);
                box-shadow: var(--shadow-lg);
                gap: 4px;
            }

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

            .nav-item a {
                padding: 12px 16px;
                font-size: 1rem;
            }

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

            .nav-cta {
                margin-left: 0;
                margin-top: 8px;
                text-align: center;
                padding: 12px 24px !important;
            }

            .site-logo {
                font-size: 1.25rem;
            }
        }

        /* ===== Hero 首屏 ===== */
        .hero-section {
            padding: 140px 0 80px;
            background: linear-gradient(160deg, var(--bg-dark) 0%, var(--secondary) 50%, var(--bg-dark) 100%);
            position: relative;
            overflow: hidden;
        }

        .hero-section::before {
            content: '';
            position: absolute;
            top: -30%;
            right: -20%;
            width: 600px;
            height: 600px;
            background: radial-gradient(circle, rgba(212, 168, 83, 0.08) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .hero-section::after {
            content: '';
            position: absolute;
            bottom: -20%;
            left: -10%;
            width: 400px;
            height: 400px;
            background: radial-gradient(circle, rgba(232, 93, 58, 0.05) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(212, 168, 83, 0.12);
            border: 1px solid rgba(212, 168, 83, 0.2);
            padding: 6px 18px;
            border-radius: 50px;
            font-size: 0.85rem;
            color: var(--primary-light);
            margin-bottom: 20px;
            letter-spacing: 0.5px;
        }
        .hero-badge i {
            font-size: 0.75rem;
        }

        .hero-title {
            font-size: 3.2rem;
            font-weight: 800;
            color: var(--text-light);
            line-height: 1.2;
            margin-bottom: 20px;
            letter-spacing: -0.5px;
        }
        .hero-title span {
            background: linear-gradient(135deg, var(--primary), var(--primary-light));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .hero-desc {
            font-size: 1.15rem;
            color: var(--text-muted);
            max-width: 640px;
            line-height: 1.8;
            margin-bottom: 32px;
        }

        .hero-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
        }

        .btn-primary-custom {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            color: var(--bg-dark);
            padding: 14px 36px;
            border-radius: 50px;
            font-weight: 600;
            font-size: 1.05rem;
            border: none;
            box-shadow: 0 4px 20px rgba(212, 168, 83, 0.3);
            transition: var(--transition);
        }
        .btn-primary-custom:hover {
            transform: translateY(-3px);
            box-shadow: 0 10px 40px rgba(212, 168, 83, 0.4);
            color: var(--bg-dark);
        }

        .btn-outline-custom {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            background: transparent;
            color: var(--text-light);
            padding: 14px 36px;
            border-radius: 50px;
            font-weight: 500;
            font-size: 1.05rem;
            border: 1px solid var(--border-light);
            transition: var(--transition);
        }
        .btn-outline-custom:hover {
            border-color: var(--primary);
            color: var(--primary);
            background: rgba(212, 168, 83, 0.05);
            transform: translateY(-2px);
        }

        @media (max-width: 768px) {
            .hero-section {
                padding: 110px 0 60px;
            }
            .hero-title {
                font-size: 2.2rem;
            }
            .hero-desc {
                font-size: 1rem;
            }
            .hero-actions {
                flex-direction: column;
            }
            .btn-primary-custom,
            .btn-outline-custom {
                width: 100%;
                justify-content: center;
            }
        }

        @media (max-width: 520px) {
            .hero-title {
                font-size: 1.8rem;
            }
        }

        /* ===== 通用板块 ===== */
        .section-padding {
            padding: 80px 0;
        }

        .section-title {
            font-size: 2.2rem;
            font-weight: 700;
            color: var(--text-light);
            margin-bottom: 12px;
            letter-spacing: -0.3px;
        }

        .section-subtitle {
            font-size: 1.05rem;
            color: var(--text-muted);
            max-width: 600px;
            line-height: 1.7;
        }

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

        .section-divider {
            width: 60px;
            height: 3px;
            background: linear-gradient(90deg, var(--primary), var(--primary-light));
            border-radius: 4px;
            margin-top: 12px;
        }

        @media (max-width: 768px) {
            .section-padding {
                padding: 56px 0;
            }
            .section-title {
                font-size: 1.7rem;
            }
            .section-header {
                margin-bottom: 32px;
            }
        }

        /* ===== 分类标签 ===== */
        .category-tabs {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            margin-bottom: 40px;
        }

        .category-tab {
            padding: 8px 24px;
            border-radius: 50px;
            font-size: 0.9rem;
            font-weight: 500;
            border: 1px solid var(--border-light);
            background: transparent;
            color: var(--text-muted);
            transition: var(--transition);
        }
        .category-tab:hover {
            border-color: var(--primary);
            color: var(--primary);
            background: rgba(212, 168, 83, 0.06);
        }
        .category-tab.active {
            background: var(--primary);
            color: var(--bg-dark);
            border-color: var(--primary);
            font-weight: 600;
        }

        /* ===== 活动卡片 ===== */
        .promo-card {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: var(--transition);
            height: 100%;
        }

        .promo-card:hover {
            transform: translateY(-6px);
            border-color: rgba(212, 168, 83, 0.3);
            box-shadow: 0 12px 40px rgba(0, 0, 0, 0.4);
            background: var(--bg-card-hover);
        }

        .promo-card-header {
            position: relative;
            height: 200px;
            overflow: hidden;
            background: linear-gradient(135deg, var(--secondary), var(--bg-dark));
            display: flex;
            align-items: center;
            justify-content: center;
        }

        .promo-card-header .icon-wrap {
            width: 80px;
            height: 80px;
            border-radius: 50%;
            background: rgba(212, 168, 83, 0.12);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 2.2rem;
            color: var(--primary);
            border: 1px solid rgba(212, 168, 83, 0.2);
            transition: var(--transition);
        }

        .promo-card:hover .icon-wrap {
            background: rgba(212, 168, 83, 0.2);
            transform: scale(1.05);
        }

        .promo-badge {
            position: absolute;
            top: 14px;
            right: 14px;
            background: var(--accent);
            color: #fff;
            padding: 4px 14px;
            border-radius: 50px;
            font-size: 0.75rem;
            font-weight: 600;
            letter-spacing: 0.3px;
            box-shadow: 0 2px 12px rgba(232, 93, 58, 0.3);
        }

        .promo-badge.hot {
            background: var(--primary);
            color: var(--bg-dark);
        }

        .promo-card-body {
            padding: 24px;
        }

        .promo-card-body h3 {
            font-size: 1.2rem;
            font-weight: 600;
            color: var(--text-light);
            margin-bottom: 10px;
        }

        .promo-card-body p {
            font-size: 0.9rem;
            color: var(--text-muted);
            line-height: 1.6;
            margin-bottom: 16px;
        }

        .promo-meta {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            margin-bottom: 16px;
        }
        .promo-meta span {
            font-size: 0.8rem;
            color: var(--text-muted);
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .promo-meta span i {
            color: var(--primary);
            font-size: 0.7rem;
        }

        .promo-tag {
            display: inline-block;
            padding: 3px 12px;
            border-radius: 50px;
            font-size: 0.75rem;
            font-weight: 500;
            background: rgba(212, 168, 83, 0.1);
            color: var(--primary-light);
            border: 1px solid rgba(212, 168, 83, 0.15);
            margin-right: 6px;
            margin-bottom: 4px;
        }

        .promo-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-weight: 500;
            font-size: 0.9rem;
            color: var(--primary);
            transition: var(--transition);
        }
        .promo-link:hover {
            color: var(--primary-light);
            gap: 10px;
        }

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

        .stat-item {
            text-align: center;
            padding: 32px 16px;
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            transition: var(--transition);
        }
        .stat-item:hover {
            border-color: rgba(212, 168, 83, 0.2);
            transform: translateY(-4px);
            box-shadow: var(--shadow-md);
        }

        .stat-number {
            font-size: 2.8rem;
            font-weight: 800;
            color: var(--primary);
            line-height: 1.1;
            margin-bottom: 6px;
        }

        .stat-label {
            font-size: 0.9rem;
            color: var(--text-muted);
            letter-spacing: 0.3px;
        }

        @media (max-width: 768px) {
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 16px;
            }
            .stat-number {
                font-size: 2.2rem;
            }
        }

        @media (max-width: 520px) {
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 12px;
            }
            .stat-item {
                padding: 20px 12px;
            }
            .stat-number {
                font-size: 1.8rem;
            }
        }

        /* ===== 活动流程 ===== */
        .steps-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            counter-reset: step;
        }

        .step-item {
            text-align: center;
            padding: 36px 20px;
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            position: relative;
            transition: var(--transition);
        }
        .step-item:hover {
            border-color: rgba(212, 168, 83, 0.2);
            transform: translateY(-4px);
            box-shadow: var(--shadow-md);
        }

        .step-number {
            width: 48px;
            height: 48px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            color: var(--bg-dark);
            font-weight: 700;
            font-size: 1.2rem;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 16px;
            box-shadow: 0 4px 16px rgba(212, 168, 83, 0.2);
        }

        .step-item h4 {
            font-size: 1.05rem;
            font-weight: 600;
            color: var(--text-light);
            margin-bottom: 8px;
        }

        .step-item p {
            font-size: 0.85rem;
            color: var(--text-muted);
            line-height: 1.6;
        }

        @media (max-width: 768px) {
            .steps-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 16px;
            }
        }

        @media (max-width: 520px) {
            .steps-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
        }

        /* ===== 规则说明 ===== */
        .rules-list {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 16px;
        }

        .rule-item {
            display: flex;
            gap: 14px;
            padding: 20px 24px;
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-sm);
            transition: var(--transition);
        }
        .rule-item:hover {
            border-color: rgba(212, 168, 83, 0.15);
            background: var(--bg-card-hover);
        }

        .rule-icon {
            flex-shrink: 0;
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: rgba(212, 168, 83, 0.1);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--primary);
            font-size: 0.9rem;
        }

        .rule-text h5 {
            font-size: 0.95rem;
            font-weight: 600;
            color: var(--text-light);
            margin-bottom: 4px;
        }
        .rule-text p {
            font-size: 0.85rem;
            color: var(--text-muted);
            line-height: 1.6;
            margin-bottom: 0;
        }

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

        /* ===== FAQ ===== */
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
        }

        .faq-item {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-sm);
            margin-bottom: 12px;
            overflow: hidden;
            transition: var(--transition);
        }
        .faq-item:hover {
            border-color: rgba(212, 168, 83, 0.15);
        }

        .faq-question {
            width: 100%;
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 18px 24px;
            background: transparent;
            border: none;
            color: var(--text-light);
            font-size: 1rem;
            font-weight: 500;
            text-align: left;
            transition: var(--transition);
            gap: 12px;
        }
        .faq-question:hover {
            color: var(--primary);
        }
        .faq-question i {
            transition: var(--transition);
            color: var(--primary);
            flex-shrink: 0;
        }
        .faq-question[aria-expanded="true"] i {
            transform: rotate(180deg);
        }

        .faq-answer {
            padding: 0 24px 18px;
            color: var(--text-muted);
            font-size: 0.9rem;
            line-height: 1.7;
        }

        /* ===== CTA 区块 ===== */
        .cta-section {
            background: linear-gradient(160deg, var(--secondary), var(--bg-dark));
            border-top: 1px solid var(--border-color);
            border-bottom: 1px solid var(--border-color);
        }

        .cta-box {
            background: linear-gradient(135deg, rgba(212, 168, 83, 0.06), rgba(212, 168, 83, 0.02));
            border: 1px solid rgba(212, 168, 83, 0.15);
            border-radius: var(--radius-lg);
            padding: 56px 48px;
            text-align: center;
        }

        .cta-box h2 {
            font-size: 2rem;
            font-weight: 700;
            color: var(--text-light);
            margin-bottom: 12px;
        }
        .cta-box p {
            font-size: 1.05rem;
            color: var(--text-muted);
            max-width: 520px;
            margin: 0 auto 28px;
            line-height: 1.7;
        }

        @media (max-width: 768px) {
            .cta-box {
                padding: 36px 20px;
            }
            .cta-box h2 {
                font-size: 1.5rem;
            }
        }

        /* ===== 页脚 ===== */
        .site-footer {
            background: var(--bg-dark);
            padding: 48px 0 32px;
            border-top: 1px solid var(--border-color);
        }

        .footer-brand {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 10px;
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--text-light);
            margin-bottom: 12px;
        }
        .footer-brand i {
            color: var(--primary);
        }

        .footer-links {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 8px 20px;
            margin: 20px 0 24px;
        }
        .footer-links a {
            color: var(--text-muted);
            font-size: 0.9rem;
            transition: var(--transition);
            padding: 4px 0;
        }
        .footer-links a:hover {
            color: var(--primary);
        }

        .footer-divider {
            border: none;
            height: 1px;
            background: var(--border-color);
            margin: 20px 0;
        }

        .footer-copy {
            text-align: center;
            font-size: 0.85rem;
            color: var(--text-muted);
            letter-spacing: 0.3px;
        }

        /* ===== 背景辅色 ===== */
        .bg-section-alt {
            background: var(--bg-section);
        }

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

        /* ===== 工具类 ===== */
        .text-gold {
            color: var(--primary);
        }
        .text-muted-custom {
            color: var(--text-muted);
        }
        .mb-2 {
            margin-bottom: 16px;
        }
        .mb-3 {
            margin-bottom: 24px;
        }
        .mt-2 {
            margin-top: 16px;
        }

        /* ===== 响应式微调 ===== */
        @media (max-width: 576px) {
            .category-tabs {
                gap: 8px;
            }
            .category-tab {
                padding: 6px 16px;
                font-size: 0.8rem;
            }
        }

        /* ===== 动画 ===== */
        @keyframes fadeInUp {
            from {
                opacity: 0;
                transform: translateY(30px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }

        .animate-in {
            animation: fadeInUp 0.6s ease both;
        }
        .animate-delay-1 {
            animation-delay: 0.1s;
        }
        .animate-delay-2 {
            animation-delay: 0.2s;
        }
        .animate-delay-3 {
            animation-delay: 0.3s;
        }
        .animate-delay-4 {
            animation-delay: 0.4s;
        }