/* roulang page: index */
:root {
            --primary: #172B4D;
            --primary-light: #23406E;
            --primary-lighter: #33558A;
            --accent: #C9A96A;
            --accent-dark: #AE8D52;
            --accent-soft: #F5EBD8;
            --bg-body: #F3F5FA;
            --bg-soft: #E8ECF3;
            --bg-dark: #0F1D33;
            --text-main: #1B2333;
            --text-sub: #5B6577;
            --text-faint: #8691A5;
            --border-line: #DEE4EE;
            --white: #FFFFFF;
            --radius-md: 14px;
            --radius-lg: 22px;
            --shadow-sm: 0 2px 12px rgba(23, 43, 77, 0.06);
            --shadow-md: 0 8px 30px rgba(23, 43, 77, 0.10);
            --shadow-lg: 0 16px 50px rgba(23, 43, 77, 0.16);
            --space-section: 90px;
            --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
        }

        *, *::before, *::after {
            box-sizing: border-box;
        }

        html {
            scroll-behavior: smooth;
        }

        body {
            margin: 0;
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.7;
            color: var(--text-main);
            background: var(--bg-body);
            -webkit-font-smoothing: antialiased;
        }

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

        a {
            text-decoration: none;
            color: inherit;
            transition: color .25s ease;
        }

        a:hover {
            color: var(--accent);
        }

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

        .container {
            max-width: 1240px;
        }

        /* ===== Sidebar ===== */
        .sidebar {
            position: fixed;
            top: 0;
            left: 0;
            bottom: 0;
            width: 280px;
            background: linear-gradient(180deg, #101F38 0%, #162B4E 60%, #1B3A64 100%);
            z-index: 1050;
            display: flex;
            flex-direction: column;
            padding: 32px 24px;
            box-shadow: 4px 0 30px rgba(15, 29, 51, 0.18);
            transition: transform .35s ease;
        }

        .sidebar::before {
            content: "";
            position: absolute;
            inset: 0;
            background-image: url('/assets/images/backpic/back-2.png');
            background-size: cover;
            background-position: center;
            opacity: .08;
            pointer-events: none;
        }

        .sidebar-brand {
            display: flex;
            align-items: center;
            gap: 14px;
            padding: 8px 4px 28px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.12);
            position: relative;
        }

        .brand-badge {
            width: 48px;
            height: 48px;
            border-radius: 14px;
            background: linear-gradient(135deg, var(--accent) 0%, #D9BC7A 100%);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 800;
            font-size: 18px;
            color: #1A2D4E;
            flex-shrink: 0;
            box-shadow: 0 4px 16px rgba(201, 169, 106, 0.35);
        }

        .brand-name {
            font-size: 17px;
            font-weight: 700;
            color: #FFFFFF;
            line-height: 1.4;
            letter-spacing: 0.02em;
        }

        .sidebar-nav {
            display: flex;
            flex-direction: column;
            gap: 8px;
            margin-top: 32px;
            position: relative;
            flex: 1;
        }

        .sidebar-nav .nav-link {
            display: flex;
            align-items: center;
            gap: 14px;
            padding: 14px 18px;
            border-radius: var(--radius-md);
            color: rgba(255, 255, 255, 0.72);
            font-size: 15px;
            font-weight: 500;
            background: transparent;
            border: 1px solid transparent;
            transition: background .3s ease, color .3s ease, border-color .3s ease, transform .2s ease;
        }

        .sidebar-nav .nav-link i {
            width: 20px;
            text-align: center;
            font-size: 16px;
        }

        .sidebar-nav .nav-link:hover {
            color: #FFFFFF;
            background: rgba(255, 255, 255, 0.08);
            border-color: rgba(255, 255, 255, 0.08);
            transform: translateX(4px);
        }

        .sidebar-nav .nav-link.active {
            color: #FFFFFF;
            background: linear-gradient(135deg, rgba(201, 169, 106, 0.20), rgba(201, 169, 106, 0.10));
            border-color: rgba(201, 169, 106, 0.35);
            font-weight: 600;
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.12);
        }

        .sidebar-nav .nav-link.active i {
            color: var(--accent);
        }

        .sidebar-footer {
            padding-top: 20px;
            border-top: 1px solid rgba(255, 255, 255, 0.10);
            text-align: center;
            position: relative;
        }

        .sidebar-footer p {
            color: rgba(255, 255, 255, 0.40);
            font-size: 12px;
            margin: 0;
            letter-spacing: 0.06em;
        }

        /* ===== Mobile Topbar ===== */
        .mobile-topbar {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            height: 62px;
            background: #132440;
            z-index: 1050;
            display: none;
            align-items: center;
            justify-content: space-between;
            padding: 0 20px;
            box-shadow: 0 2px 20px rgba(0, 0, 0, 0.15);
        }

        .mobile-brand {
            color: #FFFFFF;
            font-weight: 700;
            font-size: 16px;
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .mobile-brand .brand-badge {
            width: 34px;
            height: 34px;
            border-radius: 10px;
            font-size: 13px;
        }

        .mobile-toggle {
            width: 40px;
            height: 40px;
            border: 1px solid rgba(255, 255, 255, 0.18);
            border-radius: 10px;
            background: rgba(255, 255, 255, 0.08);
            color: #FFFFFF;
            font-size: 18px;
            display: flex;
            align-items: center;
            justify-content: center;
            transition: background .25s ease, border-color .25s ease;
        }

        .mobile-toggle:hover {
            background: rgba(255, 255, 255, 0.14);
            border-color: rgba(255, 255, 255, 0.30);
        }

        .sidebar-overlay {
            position: fixed;
            inset: 0;
            background: rgba(10, 18, 34, 0.55);
            z-index: 1045;
            opacity: 0;
            visibility: hidden;
            transition: opacity .3s ease, visibility .3s ease;
            backdrop-filter: blur(3px);
        }

        .sidebar-overlay.show {
            opacity: 1;
            visibility: visible;
        }

        /* ===== Content ===== */
        .content-area {
            margin-left: 280px;
            min-height: 100vh;
        }

        /* ===== Hero ===== */
        .hero {
            position: relative;
            padding: 150px 0 130px;
            color: #FFFFFF;
            background-size: cover;
            background-position: center;
            background-repeat: no-repeat;
            overflow: hidden;
        }

        .hero-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(105deg, rgba(15, 29, 51, 0.95) 0%, rgba(22, 40, 70, 0.88) 45%, rgba(23, 43, 77, 0.72) 100%);
        }

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

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(201, 169, 106, 0.18);
            border: 1px solid rgba(201, 169, 106, 0.45);
            color: #E8CD96;
            font-size: 13px;
            font-weight: 600;
            letter-spacing: 0.1em;
            padding: 6px 18px;
            border-radius: 100px;
            margin-bottom: 20px;
            backdrop-filter: blur(6px);
        }

        .hero-title {
            font-size: clamp(34px, 5vw, 56px);
            font-weight: 800;
            line-height: 1.15;
            margin: 0 0 16px;
            letter-spacing: -0.01em;
        }

        .hero-subtitle {
            font-size: clamp(15px, 1.6vw, 20px);
            color: rgba(255, 255, 255, 0.82);
            line-height: 1.7;
            max-width: 560px;
            margin-bottom: 36px;
        }

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

        .btn-accent {
            background: linear-gradient(135deg, var(--accent) 0%, #D4B877 100%);
            border: 1px solid var(--accent);
            color: #172B4D;
            font-weight: 600;
            border-radius: 12px;
            padding: 12px 30px;
            box-shadow: 0 6px 22px rgba(201, 169, 106, 0.35);
            transition: transform .25s ease, box-shadow .25s ease, background .25s ease;
        }

        .btn-accent:hover {
            background: linear-gradient(135deg, #D4B877 0%, #C9A96A 100%);
            transform: translateY(-2px);
            box-shadow: 0 10px 30px rgba(201, 169, 106, 0.40);
            color: #172B4D;
        }

        .btn-accent:focus {
            box-shadow: 0 0 0 4px rgba(201, 169, 106, 0.30);
        }

        .btn-outline-light {
            border: 1.5px solid rgba(255, 255, 255, 0.50);
            color: #FFFFFF;
            font-weight: 500;
            border-radius: 12px;
            padding: 12px 30px;
            background: rgba(255, 255, 255, 0.04);
            backdrop-filter: blur(4px);
            transition: background .25s ease, border-color .25s ease, transform .25s ease;
        }

        .btn-outline-light:hover {
            background: rgba(255, 255, 255, 0.12);
            border-color: #FFFFFF;
            color: #FFFFFF;
            transform: translateY(-2px);
        }

        /* ===== Ticker ===== */
        .ticker-bar {
            background: var(--bg-dark);
            color: #FFFFFF;
            padding: 12px 0;
            border-bottom: 3px solid var(--accent);
        }

        .ticker-badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: var(--accent);
            color: #1A2D4E;
            font-size: 13px;
            font-weight: 700;
            padding: 4px 14px;
            border-radius: 100px;
            margin-right: 16px;
            flex-shrink: 0;
        }

        .ticker-items {
            display: flex;
            gap: 36px;
            overflow: hidden;
            white-space: nowrap;
            animation: ticker-scroll 22s linear infinite;
        }

        .ticker-item {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.85);
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }

        .ticker-item::before {
            content: "•";
            color: var(--accent);
            font-weight: 700;
        }

        @keyframes ticker-scroll {
            0% { transform: translateX(0); }
            100% { transform: translateX(-30%); }
        }

        /* ===== Section ===== */
        .section {
            padding: var(--space-section) 0;
        }

        .section-head {
            max-width: 760px;
            margin: 0 auto 52px;
            text-align: center;
        }

        .section-tag {
            display: inline-block;
            background: var(--accent-soft);
            color: var(--accent-dark);
            font-size: 13px;
            font-weight: 600;
            letter-spacing: 0.12em;
            padding: 5px 18px;
            border-radius: 100px;
            border: 1px solid #E7D3AC;
            margin-bottom: 14px;
        }

        .section-title {
            font-size: clamp(26px, 3vw, 38px);
            font-weight: 700;
            color: var(--text-main);
            margin: 0 0 10px;
            line-height: 1.3;
            letter-spacing: -0.02em;
        }

        .section-desc {
            font-size: 16px;
            color: var(--text-sub);
            line-height: 1.7;
            margin: 0;
        }

        .bg-soft {
            background: var(--bg-soft);
        }

        /* ===== Feature Card ===== */
        .feature-card {
            background: var(--white);
            border-radius: var(--radius-lg);
            padding: 36px 30px;
            height: 100%;
            border: 1px solid var(--border-line);
            box-shadow: var(--shadow-sm);
            transition: transform .3s ease, box-shadow .3s ease, border-color .3s ease;
            position: relative;
            overflow: hidden;
        }

        .feature-card::after {
            content: "";
            position: absolute;
            top: 0;
            right: 0;
            width: 80px;
            height: 80px;
            background: radial-gradient(circle, rgba(201, 169, 106, 0.15) 0%, transparent 70%);
            border-radius: 0 0 0 80px;
            transition: transform .4s ease;
        }

        .feature-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-lg);
            border-color: rgba(201, 169, 106, 0.35);
        }

        .feature-card:hover::after {
            transform: scale(1.3);
        }

        .feature-icon {
            width: 60px;
            height: 60px;
            border-radius: 16px;
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
            color: #FFFFFF;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 22px;
            margin-bottom: 22px;
            box-shadow: 0 6px 20px rgba(23, 43, 77, 0.25);
        }

        .feature-card h3 {
            font-size: 20px;
            font-weight: 600;
            color: var(--text-main);
            margin: 0 0 10px;
        }

        .feature-card p {
            font-size: 15px;
            color: var(--text-sub);
            line-height: 1.65;
            margin: 0;
        }

        /* ===== Category Card ===== */
        .category-card {
            display: block;
            background: var(--white);
            border-radius: var(--radius-lg);
            overflow: hidden;
            border: 1px solid var(--border-line);
            box-shadow: var(--shadow-sm);
            transition: transform .3s ease, box-shadow .3s ease;
            position: relative;
        }

        .category-card:hover {
            transform: translateY(-8px);
            box-shadow: var(--shadow-lg);
        }

        .category-card img {
            width: 100%;
            height: 260px;
            object-fit: cover;
        }

        .category-info {
            padding: 32px;
            position: relative;
        }

        .category-info::before {
            content: "";
            position: absolute;
            top: 0;
            left: 32px;
            right: 32px;
            height: 3px;
            background: linear-gradient(90deg, var(--accent) 0%, rgba(201, 169, 106, 0.30) 100%);
            border-radius: 0 0 4px 4px;
        }

        .category-info h3 {
            font-size: 24px;
            font-weight: 700;
            margin: 0 0 8px;
        }

        .category-info p {
            font-size: 15px;
            color: var(--text-sub);
            margin: 0 0 16px;
        }

        .category-link {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            color: var(--accent-dark);
            font-weight: 600;
            font-size: 14px;
            transition: gap .25s ease;
        }

        .category-card:hover .category-link {
            gap: 14px;
        }

        /* ===== Latest List ===== */
        .latest-list {
            background: var(--white);
            border-radius: var(--radius-lg);
            border: 1px solid var(--border-line);
            box-shadow: var(--shadow-sm);
            overflow: hidden;
        }

        .latest-item {
            display: flex;
            align-items: center;
            gap: 18px;
            padding: 20px 28px;
            border-bottom: 1px solid var(--border-line);
            transition: background .25s ease, padding-left .25s ease;
        }

        .latest-item:last-child {
            border-bottom: none;
        }

        .latest-item:hover {
            background: #FAFBFF;
            padding-left: 36px;
        }

        .latest-cat {
            background: var(--accent-soft);
            color: var(--accent-dark);
            font-size: 13px;
            font-weight: 600;
            padding: 4px 12px;
            border-radius: 100px;
            white-space: nowrap;
            flex-shrink: 0;
        }

        .latest-title {
            flex: 1;
            font-size: 16px;
            font-weight: 500;
            color: var(--text-main);
            overflow: hidden;
            text-overflow: ellipsis;
            white-space: nowrap;
        }

        .latest-item:hover .latest-title {
            color: var(--accent-dark);
        }

        .latest-date {
            font-size: 13px;
            color: var(--text-faint);
            white-space: nowrap;
            flex-shrink: 0;
        }

        .empty-tip {
            text-align: center;
            padding: 48px 20px;
            color: var(--text-faint);
            font-size: 16px;
            font-style: italic;
        }

        /* ===== Stats ===== */
        .stats-section {
            background: linear-gradient(135deg, var(--bg-dark) 0%, #142A4A 100%);
            color: #FFFFFF;
            position: relative;
            overflow: hidden;
        }

        .stats-section::before {
            content: "";
            position: absolute;
            inset: 0;
            background-image: url('/assets/images/backpic/back-3.png');
            background-size: cover;
            background-position: center;
            opacity: 0.10;
            pointer-events: none;
        }

        .stat-box {
            position: relative;
            padding: 30px 20px;
            text-align: center;
            border-radius: var(--radius-lg);
            background: rgba(255, 255, 255, 0.04);
            border: 1px solid rgba(255, 255, 255, 0.08);
            backdrop-filter: blur(4px);
            transition: background .3s ease, transform .3s ease;
        }

        .stat-box:hover {
            background: rgba(255, 255, 255, 0.08);
            transform: translateY(-4px);
        }

        .stat-num {
            font-size: clamp(30px, 3vw, 44px);
            font-weight: 800;
            color: var(--accent);
            line-height: 1.2;
            margin-bottom: 6px;
            font-family: "Georgia", "Times New Roman", serif;
        }

        .stat-label {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.72);
            letter-spacing: 0.08em;
        }

        /* ===== Steps ===== */
        .step-card {
            background: var(--white);
            border-radius: var(--radius-lg);
            padding: 36px 30px;
            height: 100%;
            border: 1px solid var(--border-line);
            box-shadow: var(--shadow-sm);
            position: relative;
            transition: transform .3s ease, box-shadow .3s ease;
        }

        .step-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-lg);
        }

        .step-num {
            font-size: 42px;
            font-weight: 800;
            color: transparent;
            -webkit-text-stroke: 2px var(--accent);
            line-height: 1;
            margin-bottom: 18px;
            font-family: "Georgia", "Times New Roman", serif;
        }

        .step-card h3 {
            font-size: 19px;
            font-weight: 600;
            margin: 0 0 10px;
        }

        .step-card p {
            font-size: 14px;
            color: var(--text-sub);
            margin: 0;
            line-height: 1.6;
        }

        /* ===== Featured ===== */
        .featured-card {
            background: var(--white);
            border-radius: var(--radius-lg);
            overflow: hidden;
            border: 1px solid var(--border-line);
            box-shadow: var(--shadow-sm);
            height: 100%;
            transition: transform .3s ease, box-shadow .3s ease;
        }

        .featured-card:hover {
            transform: translateY(-8px);
            box-shadow: var(--shadow-lg);
        }

        .featured-card img {
            width: 100%;
            height: 220px;
            object-fit: cover;
            transition: transform .4s ease;
        }

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

        .featured-body {
            padding: 24px 26px;
        }

        .badge-gold {
            background: var(--accent-soft);
            color: var(--accent-dark);
            font-size: 12px;
            font-weight: 600;
            padding: 4px 12px;
            border-radius: 100px;
        }

        .badge-blue {
            background: rgba(35, 64, 110, 0.10);
            color: var(--primary-light);
            font-size: 12px;
            font-weight: 600;
            padding: 4px 12px;
            border-radius: 100px;
        }

        .badge-green {
            background: rgba(52, 168, 83, 0.12);
            color: #1E7B42;
            font-size: 12px;
            font-weight: 600;
            padding: 4px 12px;
            border-radius: 100px;
        }

        .featured-body h3 {
            font-size: 19px;
            font-weight: 600;
            margin: 14px 0 10px;
            line-height: 1.4;
        }

        .featured-body p {
            font-size: 14px;
            color: var(--text-sub);
            margin: 0;
            line-height: 1.65;
        }

        /* ===== FAQ ===== */
        .accordion-item {
            background: var(--white);
            border: 1px solid var(--border-line) !important;
            border-radius: var(--radius-md) !important;
            margin-bottom: 14px;
            overflow: hidden;
            box-shadow: var(--shadow-sm);
        }

        .accordion-button {
            font-size: 16px;
            font-weight: 500;
            color: var(--text-main);
            background: var(--white);
            padding: 20px 26px;
            border: none;
            box-shadow: none !important;
        }

        .accordion-button:not(.collapsed) {
            background: var(--accent-soft);
            color: var(--accent-dark);
        }

        .accordion-button:focus {
            box-shadow: 0 0 0 3px rgba(201, 169, 106, 0.25) !important;
        }

        .accordion-body {
            padding: 18px 26px 24px;
            color: var(--text-sub);
            font-size: 15px;
            line-height: 1.7;
        }

        /* ===== CTA ===== */
        .cta-section {
            padding: 0 0 var(--space-section);
        }

        .cta-box {
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
            border-radius: 26px;
            padding: 60px 50px;
            text-align: center;
            color: #FFFFFF;
            position: relative;
            overflow: hidden;
            box-shadow: var(--shadow-lg);
        }

        .cta-box::before {
            content: "";
            position: absolute;
            top: -40px;
            right: -40px;
            width: 200px;
            height: 200px;
            border-radius: 50%;
            background: rgba(201, 169, 106, 0.15);
        }

        .cta-box::after {
            content: "";
            position: absolute;
            bottom: -60px;
            left: -30px;
            width: 160px;
            height: 160px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.06);
        }

        .cta-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 68px;
            height: 68px;
            border-radius: 20px;
            background: rgba(201, 169, 106, 0.20);
            color: var(--accent);
            font-size: 28px;
            margin-bottom: 18px;
            border: 1px solid rgba(201, 169, 106, 0.35);
            position: relative;
            z-index: 2;
        }

        .cta-box h2 {
            font-size: clamp(24px, 3vw, 34px);
            font-weight: 700;
            margin: 0 0 12px;
            position: relative;
            z-index: 2;
        }

        .cta-box p {
            font-size: 16px;
            color: rgba(255, 255, 255, 0.78);
            max-width: 600px;
            margin: 0 auto 28px;
            position: relative;
            z-index: 2;
        }

        .cta-box .btn-accent {
            position: relative;
            z-index: 2;
        }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--bg-dark);
            color: #FFFFFF;
            padding: 70px 0 0;
            position: relative;
        }

        .site-footer::before {
            content: "";
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 3px;
            background: linear-gradient(90deg, var(--accent) 0%, transparent 100%);
        }

        .footer-brand h3 {
            font-size: 24px;
            font-weight: 700;
            color: #FFFFFF;
            margin: 0 0 12px;
        }

        .footer-brand p {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.55);
            max-width: 340px;
            margin: 0;
        }

        .footer-title {
            font-size: 15px;
            font-weight: 600;
            color: rgba(255, 255, 255, 0.90);
            letter-spacing: 0.08em;
            margin-bottom: 20px;
            text-transform: uppercase;
        }

        .footer-links {
            list-style: none;
            padding: 0;
            margin: 0;
        }

        .footer-links li {
            margin-bottom: 12px;
        }

        .footer-links a {
            color: rgba(255, 255, 255, 0.60);
            font-size: 15px;
            transition: color .25s ease, padding-left .25s ease;
            display: inline-block;
        }

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

        .footer-divider {
            border-top: 1px solid rgba(255, 255, 255, 0.10);
            margin: 50px 0 0;
        }

        .footer-bottom {
            padding: 24px 0;
            text-align: center;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.35);
        }

        .footer-bottom p {
            margin: 0;
        }

        /* ===== Responsive ===== */
        @media (max-width: 1199.98px) {
            :root {
                --space-section: 70px;
            }
            .sidebar {
                width: 250px;
            }
            .content-area {
                margin-left: 250px;
            }
            .latest-title {
                white-space: normal;
            }
        }

        @media (max-width: 991.98px) {
            .sidebar {
                transform: translateX(-100%);
                width: 280px;
            }
            .sidebar.show {
                transform: translateX(0);
            }
            .sidebar-overlay {
                display: block;
            }
            .content-area {
                margin-left: 0;
                padding-top: 62px;
            }
            .mobile-topbar {
                display: flex;
            }
            .hero {
                padding: 110px 0 90px;
            }
            .section {
                padding: 60px 0;
            }
            .ticker-items {
                gap: 20px;
                animation-duration: 15s;
            }
            .cta-box {
                padding: 40px 24px;
            }
        }

        @media (max-width: 767.98px) {
            body {
                font-size: 15px;
            }
            .hero {
                padding: 90px 0 70px;
            }
            .hero-actions {
                flex-direction: column;
                width: 100%;
            }
            .hero-actions .btn {
                width: 100%;
                text-align: center;
            }
            .latest-item {
                flex-wrap: wrap;
                gap: 10px;
                padding: 16px 18px;
            }
            .latest-cat {
                font-size: 12px;
            }
            .latest-date {
                font-size: 12px;
                flex-basis: 100%;
                text-align: right;
            }
            .section-head {
                margin-bottom: 36px;
            }
            .stat-box {
                min-height: 120px;
                padding: 20px 12px;
            }
            .footer-brand h3 {
                font-size: 20px;
            }
        }

        @media (max-width: 575.98px) {
            :root {
                --space-section: 48px;
            }
            .hero {
                padding: 70px 0 56px;
            }
            .hero-badge {
                font-size: 12px;
                padding: 4px 14px;
            }
            .feature-card {
                padding: 26px 20px;
            }
            .category-info {
                padding: 24px 20px;
            }
            .category-card img {
                height: 180px;
            }
            .step-card {
                padding: 28px 20px;
            }
            .step-num {
                font-size: 32px;
            }
            .featured-card img {
                height: 170px;
            }
            .cta-box {
                border-radius: 18px;
                padding: 32px 18px;
            }
            .cta-box .btn-accent {
                width: 100%;
            }
        }

        @media (min-width: 992px) and (max-width: 1024px) {
            .container {
                max-width: 100%;
                padding-left: 28px;
                padding-right: 28px;
            }
        }

/* roulang page: category1 */
/* ==================== 设计变量 ==================== */
        :root {
            --primary: #1d2f6f;
            --primary-dark: #142247;
            --accent: #f5a623;
            --accent-dark: #e09518;
            --bg: #f4f6fb;
            --surface: #ffffff;
            --text: #1a2233;
            --text-muted: #64748b;
            --border: #e2e8f0;
            --radius: 16px;
            --radius-sm: 10px;
            --shadow-sm: 0 2px 10px rgba(15, 23, 42, .06);
            --shadow-md: 0 10px 30px rgba(15, 23, 42, .08);
            --shadow-lg: 0 18px 44px rgba(15, 23, 42, .12);
            --transition: .25s ease;
            --font: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", system-ui, -apple-system, sans-serif;
        }

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

        html {
            scroll-behavior: smooth;
        }

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

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

        a:hover {
            color: var(--accent);
        }

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

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

        ul,
        ol {
            padding: 0;
        }

        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            font-weight: 700;
            line-height: 1.35;
        }

        /* ==================== 布局容器 ==================== */
        .container {
            max-width: 1200px;
            padding-left: 20px;
            padding-right: 20px;
        }

        .main-wrapper {
            margin-left: 260px;
            min-height: 100vh;
            display: flex;
            flex-direction: column;
        }

        .main-wrapper main {
            flex: 1;
        }

        /* ==================== 左侧竖向导航 ==================== */
        .site-sidebar {
            position: fixed;
            left: 0;
            top: 0;
            bottom: 0;
            width: 260px;
            background: linear-gradient(180deg, var(--primary) 0%, var(--primary-dark) 100%);
            z-index: 1040;
            padding: 28px 20px 20px;
            display: flex;
            flex-direction: column;
            transition: transform .35s ease;
            box-shadow: 2px 0 16px rgba(15, 23, 42, .2);
        }

        .sidebar-brand {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 10px 8px 22px;
            border-bottom: 1px solid rgba(255, 255, 255, .14);
            color: #fff;
            text-decoration: none;
            font-size: 1.05rem;
            font-weight: 700;
            letter-spacing: .2px;
        }

        .sidebar-brand:hover {
            color: #fff;
            opacity: .9;
        }

        .brand-badge {
            width: 40px;
            height: 40px;
            border-radius: 12px;
            background: var(--accent);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: .95rem;
            font-weight: 800;
            color: #fff;
            flex-shrink: 0;
            box-shadow: 0 6px 16px rgba(245, 166, 35, .3);
        }

        .sidebar-nav {
            list-style: none;
            margin-top: 30px;
            padding: 0;
            flex: 1;
        }

        .sidebar-nav li {
            margin-bottom: 6px;
        }

        .sidebar-nav a {
            display: flex;
            align-items: center;
            gap: 14px;
            padding: 12px 14px;
            border-radius: 12px;
            color: rgba(255, 255, 255, .78);
            text-decoration: none;
            font-size: .93rem;
            font-weight: 500;
            transition: var(--transition);
            border-left: 3px solid transparent;
        }

        .sidebar-nav a i {
            width: 20px;
            text-align: center;
            font-size: 1.05rem;
        }

        .sidebar-nav a:hover {
            background: rgba(255, 255, 255, .08);
            color: #fff;
            transform: translateX(4px);
        }

        .sidebar-nav a.active {
            background: rgba(255, 255, 255, .14);
            color: #fff;
            border-left-color: var(--accent);
            box-shadow: inset 0 0 20px rgba(255, 255, 255, .03);
        }

        .sidebar-foot {
            margin-top: auto;
            padding-top: 20px;
            border-top: 1px solid rgba(255, 255, 255, .1);
            color: rgba(255, 255, 255, .45);
            font-size: .78rem;
            line-height: 1.6;
        }

        /* ==================== 移动端顶部栏 ==================== */
        .mobile-topbar {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            height: 64px;
            background: var(--primary);
            align-items: center;
            justify-content: space-between;
            padding: 0 18px;
            z-index: 1030;
            box-shadow: 0 6px 20px rgba(15, 23, 42, .2);
        }

        .mobile-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            color: #fff;
            text-decoration: none;
            font-weight: 700;
            font-size: .95rem;
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
        }

        .mobile-brand:hover {
            color: #fff;
        }

        .mobile-toggle {
            background: rgba(255, 255, 255, .1);
            border: 1px solid rgba(255, 255, 255, .35);
            color: #fff;
            width: 42px;
            height: 42px;
            border-radius: 10px;
            font-size: 1rem;
            cursor: pointer;
            flex-shrink: 0;
            transition: var(--transition);
        }

        .mobile-toggle:hover {
            background: rgba(255, 255, 255, .2);
        }

        .sidebar-overlay {
            position: fixed;
            inset: 0;
            background: rgba(10, 15, 30, .55);
            z-index: 1035;
            opacity: 0;
            visibility: hidden;
            transition: var(--transition);
            backdrop-filter: blur(2px);
        }

        .sidebar-overlay.show {
            opacity: 1;
            visibility: visible;
        }

        /* ==================== 页面 Banner ==================== */
        .page-banner {
            position: relative;
            padding: 100px 0 70px;
            background-image: url('/assets/images/backpic/back-2.png');
            background-size: cover;
            background-position: center;
        }

        .page-banner::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(100deg, rgba(15, 25, 55, .93) 0%, rgba(20, 34, 71, .82) 55%, rgba(20, 34, 71, .58) 100%);
        }

        .banner-content {
            position: relative;
            z-index: 2;
            color: #fff;
            max-width: 680px;
        }

        .banner-badge {
            display: inline-block;
            padding: 6px 16px;
            border-radius: 20px;
            background: rgba(245, 166, 35, .18);
            border: 1px solid rgba(245, 166, 35, .45);
            color: var(--accent);
            font-size: .8rem;
            font-weight: 600;
            letter-spacing: .5px;
            margin-bottom: 18px;
        }

        .banner-content h1 {
            font-size: 2.5rem;
            font-weight: 800;
            margin-bottom: 14px;
            line-height: 1.25;
            color: #fff;
        }

        .banner-content p {
            font-size: 1.05rem;
            color: rgba(255, 255, 255, .82);
            margin-bottom: 24px;
            max-width: 560px;
        }

        .banner-meta {
            display: flex;
            flex-wrap: wrap;
            gap: 20px;
            color: rgba(255, 255, 255, .68);
            font-size: .85rem;
        }

        .banner-meta i {
            margin-right: 6px;
            color: var(--accent);
        }

        .breadcrumb-wrap {
            position: relative;
            z-index: 2;
            margin-bottom: 22px;
        }

        .breadcrumb-wrap ol {
            display: flex;
            flex-wrap: wrap;
            list-style: none;
            padding: 0;
            margin: 0;
            gap: 8px;
            font-size: .82rem;
        }

        .breadcrumb-wrap li+li::before {
            content: '/';
            margin-right: 8px;
            color: rgba(255, 255, 255, .5);
        }

        .breadcrumb-wrap a {
            color: rgba(255, 255, 255, .7);
            text-decoration: none;
        }

        .breadcrumb-wrap a:hover {
            color: var(--accent);
        }

        .breadcrumb-wrap .active {
            color: #fff;
        }

        /* ==================== 信息快讯条 ==================== */
        .ticker-section {
            background: var(--primary-dark);
            color: #fff;
            padding: 14px 0;
            border-bottom: 1px solid rgba(255, 255, 255, .08);
        }

        .ticker-inner {
            display: flex;
            align-items: center;
            gap: 14px;
        }

        .ticker-label {
            background: var(--accent);
            color: #fff;
            font-size: .75rem;
            font-weight: 700;
            padding: 5px 14px;
            border-radius: 20px;
            white-space: nowrap;
            flex-shrink: 0;
        }

        .ticker-inner p {
            margin: 0;
            font-size: .88rem;
            color: rgba(255, 255, 255, .85);
        }

        /* ==================== 通用 Section ==================== */
        .section {
            padding: 74px 0;
        }

        .bg-soft {
            background: #f8f9fc;
        }

        .section-head {
            text-align: center;
            max-width: 680px;
            margin: 0 auto 44px;
        }

        .section-title {
            font-size: 1.85rem;
            font-weight: 800;
            color: var(--text);
            margin-bottom: 10px;
            letter-spacing: -.3px;
        }

        .section-sub {
            color: var(--text-muted);
            font-size: .95rem;
            margin: 0;
        }

        /* ==================== 概览图文 ==================== */
        .overview-img {
            border-radius: var(--radius);
            box-shadow: var(--shadow-lg);
            width: 100%;
            object-fit: cover;
            min-height: 280px;
        }

        .overview-list {
            list-style: none;
            padding: 0;
            margin: 0 0 22px;
        }

        .overview-list li {
            display: flex;
            align-items: flex-start;
            gap: 10px;
            padding: 10px 0;
            border-bottom: 1px dashed var(--border);
            font-size: .93rem;
            color: var(--text);
        }

        .overview-list li i {
            color: var(--accent);
            margin-top: 4px;
            font-size: .95rem;
        }

        .overview-points {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 14px;
            margin-top: 20px;
        }

        .overview-point {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius-sm);
            padding: 18px 12px;
            text-align: center;
            transition: var(--transition);
        }

        .overview-point:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-md);
        }

        .overview-point strong {
            display: block;
            font-size: 1.5rem;
            color: var(--primary);
            margin-bottom: 2px;
        }

        .overview-point span {
            font-size: .8rem;
            color: var(--text-muted);
        }

        /* ==================== 入口方式卡片 ==================== */
        .access-card {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 30px 24px;
            height: 100%;
            transition: var(--transition);
            position: relative;
            overflow: hidden;
        }

        .access-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 4px;
            background: linear-gradient(90deg, var(--primary), var(--accent));
            opacity: 0;
            transition: var(--transition);
        }

        .access-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-md);
            border-color: rgba(29, 47, 111, .2);
        }

        .access-card:hover::before {
            opacity: 1;
        }

        .card-icon {
            width: 58px;
            height: 58px;
            border-radius: 14px;
            background: rgba(29, 47, 111, .08);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--primary);
            font-size: 1.45rem;
            margin-bottom: 18px;
        }

        .access-card h3 {
            font-size: 1.1rem;
            font-weight: 700;
            margin-bottom: 10px;
            color: var(--text);
        }

        .access-card p {
            font-size: .88rem;
            color: var(--text-muted);
            margin-bottom: 16px;
        }

        .card-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
            margin-bottom: 18px;
        }

        .tag {
            display: inline-block;
            padding: 4px 12px;
            border-radius: 6px;
            background: var(--bg);
            font-size: .75rem;
            color: var(--text-muted);
            border: 1px solid var(--border);
        }

        /* ==================== 使用流程 ==================== */
        .flow-section {
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
            position: relative;
            overflow: hidden;
        }

        .flow-section::after {
            content: '';
            position: absolute;
            top: -100px;
            right: -100px;
            width: 300px;
            height: 300px;
            border-radius: 50%;
            background: rgba(245, 166, 35, .08);
        }

        .flow-section .section-title {
            color: #fff;
        }

        .flow-section .section-sub {
            color: rgba(255, 255, 255, .7);
        }

        .flow-steps {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            position: relative;
            z-index: 2;
        }

        .step-item {
            background: rgba(255, 255, 255, .08);
            border: 1px solid rgba(255, 255, 255, .14);
            border-radius: var(--radius);
            padding: 26px 20px;
            backdrop-filter: blur(6px);
            transition: var(--transition);
        }

        .step-item:hover {
            background: rgba(255, 255, 255, .14);
            transform: translateY(-4px);
        }

        .step-num {
            font-size: 2rem;
            font-weight: 800;
            color: var(--accent);
            display: block;
            margin-bottom: 12px;
            line-height: 1;
        }

        .step-item h3 {
            color: #fff;
            font-size: 1rem;
            font-weight: 700;
            margin-bottom: 10px;
        }

        .step-item p {
            color: rgba(255, 255, 255, .72);
            font-size: .84rem;
            margin: 0;
            line-height: 1.65;
        }

        /* ==================== FAQ ==================== */
        .faq-wrap {
            max-width: 780px;
            margin: 0 auto;
        }

        .faq-item {
            border: 1px solid var(--border);
            border-radius: var(--radius-sm);
            margin-bottom: 12px;
            overflow: hidden;
            background: var(--surface);
            transition: var(--transition);
        }

        .faq-item:hover {
            border-color: rgba(29, 47, 111, .25);
            box-shadow: var(--shadow-sm);
        }

        .faq-item summary {
            cursor: pointer;
            padding: 18px 48px 18px 20px;
            font-weight: 600;
            font-size: .95rem;
            color: var(--text);
            list-style: none;
            position: relative;
            outline: none;
            transition: var(--transition);
        }

        .faq-item summary::-webkit-details-marker {
            display: none;
        }

        .faq-item summary:hover {
            background: var(--bg);
        }

        .faq-item summary:focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: -2px;
        }

        .faq-item summary::after {
            content: '+';
            position: absolute;
            right: 18px;
            top: 50%;
            transform: translateY(-50%);
            width: 26px;
            height: 26px;
            border-radius: 50%;
            background: var(--primary);
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: .95rem;
            line-height: 1;
            font-weight: 400;
            transition: var(--transition);
        }

        .faq-item[open] summary::after {
            content: '–';
            background: var(--accent);
        }

        .faq-body {
            padding: 0 20px 18px;
            font-size: .9rem;
            color: var(--text-muted);
            line-height: 1.7;
            border-top: 1px solid var(--bg);
            padding-top: 12px;
        }

        /* ==================== 相关阅读 ==================== */
        .article-card {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            overflow: hidden;
            height: 100%;
            transition: var(--transition);
            display: flex;
            flex-direction: column;
        }

        .article-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-md);
            border-color: rgba(29, 47, 111, .18);
        }

        .article-card img {
            width: 100%;
            height: 190px;
            object-fit: cover;
            display: block;
        }

        .article-body {
            padding: 22px;
            display: flex;
            flex-direction: column;
            flex: 1;
        }

        .article-meta {
            font-size: .78rem;
            color: var(--text-muted);
            display: flex;
            gap: 14px;
            margin-bottom: 10px;
            letter-spacing: .2px;
        }

        .article-meta i {
            color: var(--accent);
            margin-right: 4px;
        }

        .article-body h3 {
            font-size: 1.02rem;
            font-weight: 700;
            margin-bottom: 8px;
            line-height: 1.45;
            color: var(--text);
        }

        .article-body p {
            font-size: .85rem;
            color: var(--text-muted);
            margin: 0;
        }

        .article-link {
            margin-top: auto;
            padding-top: 16px;
            font-size: .84rem;
            font-weight: 600;
            color: var(--primary);
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }

        .article-link:hover {
            color: var(--accent);
        }

        /* ==================== CTA 区块 ==================== */
        .cta-section {
            background: linear-gradient(135deg, var(--primary-dark) 0%, #0d1a3a 100%);
            padding: 70px 0;
            position: relative;
            overflow: hidden;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            bottom: -60px;
            left: 50%;
            transform: translateX(-50%);
            width: 420px;
            height: 420px;
            border-radius: 50%;
            background: rgba(245, 166, 35, .06);
        }

        .cta-inner {
            text-align: center;
            max-width: 640px;
            margin: 0 auto;
            position: relative;
            z-index: 2;
        }

        .cta-inner h3 {
            font-size: 1.8rem;
            font-weight: 800;
            color: #fff;
            margin-bottom: 14px;
        }

        .cta-inner p {
            color: rgba(255, 255, 255, .75);
            font-size: .95rem;
            margin-bottom: 30px;
            line-height: 1.7;
        }

        .cta-actions {
            display: flex;
            justify-content: center;
            gap: 14px;
            flex-wrap: wrap;
        }

        /* ==================== 按钮 ==================== */
        .btn-primary {
            background: var(--accent);
            border-color: var(--accent);
            color: #fff;
            font-weight: 600;
            padding: 11px 28px;
            border-radius: 8px;
            transition: var(--transition);
            box-shadow: 0 6px 20px rgba(245, 166, 35, .3);
        }

        .btn-primary:hover,
        .btn-primary:focus {
            background: var(--accent-dark);
            border-color: var(--accent-dark);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 10px 28px rgba(245, 166, 35, .4);
        }

        .btn-outline-light {
            border: 2px solid rgba(255, 255, 255, .7);
            color: #fff;
            font-weight: 600;
            padding: 11px 28px;
            border-radius: 8px;
            transition: var(--transition);
            background: transparent;
        }

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

        .btn-outline-primary {
            border: 2px solid var(--primary);
            color: var(--primary);
            font-weight: 600;
            padding: 10px 26px;
            border-radius: 8px;
            transition: var(--transition);
            background: transparent;
        }

        .btn-outline-primary:hover {
            background: var(--primary);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 8px 20px rgba(29, 47, 111, .2);
        }

        /* ==================== 页脚 ==================== */
        .site-footer {
            background: var(--primary-dark);
            color: rgba(255, 255, 255, .68);
            padding: 60px 0 0;
            margin-top: 0;
        }

        .footer-brand h3 {
            color: #fff;
            font-size: 1.05rem;
            margin-bottom: 12px;
            letter-spacing: .3px;
        }

        .footer-brand p {
            font-size: .85rem;
            margin: 0;
            line-height: 1.7;
            color: rgba(255, 255, 255, .6);
        }

        .footer-title {
            color: #fff;
            font-size: .9rem;
            font-weight: 700;
            margin-bottom: 16px;
            letter-spacing: .6px;
        }

        .footer-links {
            list-style: none;
            padding: 0;
            margin: 0;
        }

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

        .footer-links a {
            color: rgba(255, 255, 255, .65);
            text-decoration: none;
            font-size: .85rem;
            transition: var(--transition);
        }

        .footer-links a:hover {
            color: var(--accent);
            padding-left: 5px;
        }

        .footer-divider {
            border-top: 1px solid rgba(255, 255, 255, .1);
            margin: 40px 0 0;
        }

        .footer-bottom {
            padding: 16px 0;
            text-align: center;
            font-size: .78rem;
            color: rgba(255, 255, 255, .4);
        }

        /* ==================== 响应式断点 ==================== */
        @media (max-width: 991.98px) {
            .site-sidebar {
                transform: translateX(-100%);
                width: 280px;
            }

            .site-sidebar.show {
                transform: translateX(0);
                box-shadow: var(--shadow-lg);
            }

            .mobile-topbar {
                display: flex;
            }

            .main-wrapper {
                margin-left: 0;
                padding-top: 64px;
            }

            .page-banner {
                padding: 70px 0 50px;
            }

            .banner-content h1 {
                font-size: 2rem;
            }

            .section {
                padding: 54px 0;
            }

            .flow-steps {
                grid-template-columns: repeat(2, 1fr);
            }

            .footer-brand {
                margin-bottom: 20px;
            }
        }

        @media (max-width: 767.98px) {
            .banner-content h1 {
                font-size: 1.7rem;
            }

            .banner-content p {
                font-size: .95rem;
            }

            .ticker-inner {
                flex-direction: column;
                align-items: flex-start;
                gap: 8px;
            }

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

            .overview-points {
                grid-template-columns: 1fr;
            }

            .flow-steps {
                grid-template-columns: 1fr;
            }

            .cta-inner h3 {
                font-size: 1.4rem;
            }

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

            .cta-actions .btn {
                width: 100%;
                max-width: 240px;
            }
        }

        @media (max-width: 575.98px) {
            .page-banner {
                padding: 60px 0 42px;
            }

            .banner-meta {
                gap: 12px;
                font-size: .78rem;
                flex-direction: column;
                gap: 6px;
            }

            .section {
                padding: 44px 0;
            }

            .section-title {
                font-size: 1.3rem;
            }

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

            .article-card img {
                height: 170px;
            }

            .site-footer {
                padding-top: 44px;
            }

            .footer-bottom {
                font-size: .72rem;
            }
        }

/* roulang page: article */
:root {
    --primary: #0c1e38;
    --primary-dark: #081426;
    --primary-light: #1a3a5f;
    --accent: #c7a35c;
    --accent-light: #d9bb7c;
    --bg: #f4f6fa;
    --bg-alt: #eef1f7;
    --white: #ffffff;
    --text: #1b2a41;
    --text-muted: #6c7a92;
    --border: #e3e8f0;
    --border-strong: #cdd6e4;
    --radius: 10px;
    --radius-sm: 6px;
    --radius-lg: 16px;
    --shadow-sm: 0 2px 8px rgba(12,30,56,.06);
    --shadow: 0 8px 24px rgba(12,30,56,.10);
    --shadow-lg: 0 18px 48px rgba(12,30,56,.14);
    --transition: .25s ease;
    --font-family: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-family);
    background: var(--bg);
    color: var(--text);
    line-height: 1.7;
    -webkit-font-smoothing: antialiased;
}

a {
    color: inherit;
    text-decoration: none;
}

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

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

a:focus-visible,
button:focus-visible,
.btn:focus-visible {
    outline: 3px solid rgba(199, 163, 92, .5);
    outline-offset: 2px;
}

.site-wrapper {
    display: flex;
    min-height: 100vh;
    align-items: flex-start;
}

.site-sidebar {
    width: 280px;
    background: var(--primary);
    color: #fff;
    height: 100vh;
    position: sticky;
    top: 0;
    flex-shrink: 0;
    display: flex;
    flex-direction: column;
    z-index: 1040;
    border-right: 1px solid rgba(255,255,255,.06);
}

.sidebar-inner {
    padding: 28px 20px;
    display: flex;
    flex-direction: column;
    height: 100%;
}

.sidebar-brand {
    margin-bottom: 40px;
}

.brand-link {
    display: flex;
    align-items: center;
    gap: 12px;
}

.brand-badge {
    width: 40px;
    height: 40px;
    border-radius: 10px;
    background: var(--accent);
    color: var(--primary);
    font-weight: 800;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 15px;
    letter-spacing: -.5px;
    box-shadow: 0 6px 16px rgba(199,163,92,.35);
    flex-shrink: 0;
}

.brand-text {
    font-size: 18px;
    font-weight: 700;
    line-height: 1.35;
    color: #fff;
}

.nav-title {
    font-size: 11px;
    letter-spacing: 2px;
    text-transform: uppercase;
    color: rgba(255,255,255,.45);
    margin: 0 0 14px 12px;
}

.nav-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.nav-item {
    display: flex;
    align-items: center;
    gap: 14px;
    padding: 12px 14px;
    border-radius: 10px;
    color: rgba(255,255,255,.72);
    font-size: 15px;
    font-weight: 500;
    transition: var(--transition);
}

.nav-item i {
    width: 18px;
    text-align: center;
    font-size: 16px;
}

.nav-item:hover {
    background: rgba(255,255,255,.08);
    color: #fff;
    transform: translateX(3px);
}

.nav-item.active {
    background: rgba(199,163,92,.18);
    color: var(--accent-light);
    box-shadow: inset 3px 0 0 var(--accent);
}

.sidebar-foot {
    margin-top: auto;
    padding-top: 24px;
}

.sidebar-note {
    font-size: 12px;
    color: rgba(255,255,255,.4);
    display: block;
    text-align: center;
    padding: 14px 8px;
    border-top: 1px solid rgba(255,255,255,.08);
    line-height: 1.8;
}

.sidebar-note i {
    margin-right: 4px;
    color: var(--accent);
}

.site-main {
    flex: 1;
    min-width: 0;
    display: flex;
    flex-direction: column;
}

.mobile-topbar {
    display: none;
}

.sidebar-overlay {
    display: none;
}

.page-hero {
    position: relative;
    padding: 80px 0 60px;
    overflow: hidden;
    background: var(--primary-dark);
    min-height: 320px;
    display: flex;
    align-items: center;
}

.hero-bg {
    position: absolute;
    inset: 0;
    background-size: cover;
    background-position: center;
    opacity: .35;
}

.hero-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(120deg, rgba(8,20,38,.94) 0%, rgba(12,30,56,.78) 55%, rgba(26,58,95,.5) 100%);
}

.hero-content {
    position: relative;
    z-index: 2;
    color: #fff;
}

.breadcrumb-nav {
    margin-bottom: 24px;
}

.breadcrumb-nav .breadcrumb {
    --bs-breadcrumb-divider: '>';
    margin-bottom: 0;
}

.breadcrumb-nav .breadcrumb-item a {
    color: rgba(255,255,255,.65);
    transition: var(--transition);
}

.breadcrumb-nav .breadcrumb-item a:hover {
    color: var(--accent-light);
}

.breadcrumb-nav .breadcrumb-item.active {
    color: var(--accent-light);
}

.hero-tag {
    display: inline-block;
    background: var(--accent);
    color: var(--primary);
    font-weight: 700;
    font-size: 12px;
    letter-spacing: 1px;
    text-transform: uppercase;
    padding: 5px 14px;
    border-radius: 30px;
    margin-bottom: 16px;
}

.page-hero h1 {
    font-size: 34px;
    font-weight: 800;
    line-height: 1.35;
    margin: 0 0 16px;
    max-width: 820px;
}

.hero-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 18px;
    font-size: 14px;
    color: rgba(255,255,255,.75);
}

.hero-meta span i {
    margin-right: 6px;
    color: var(--accent-light);
}

.article-section {
    padding: 56px 0 64px;
}

.article-main {
    background: #fff;
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 40px 48px;
    box-shadow: var(--shadow-sm);
}

.article-summary {
    background: var(--bg-alt);
    border-left: 4px solid var(--accent);
    padding: 16px 20px;
    border-radius: 0 10px 10px 0;
    margin-bottom: 28px;
    color: var(--text-muted);
    font-size: 15px;
    line-height: 1.8;
}

.article-content {
    color: var(--text);
    font-size: 16px;
    line-height: 1.9;
}

.article-content h2 {
    font-size: 24px;
    margin: 36px 0 16px;
    color: var(--primary);
    font-weight: 700;
    padding-left: 14px;
    border-left: 4px solid var(--accent);
}

.article-content h3 {
    font-size: 20px;
    margin: 28px 0 12px;
    color: var(--primary);
    font-weight: 700;
}

.article-content p {
    margin: 0 0 18px;
}

.article-content ul,
.article-content ol {
    margin: 0 0 18px 20px;
}

.article-content li {
    margin-bottom: 8px;
}

.article-content blockquote {
    background: var(--bg-alt);
    border-left: 4px solid var(--accent);
    padding: 18px 24px;
    margin: 24px 0;
    border-radius: 0 10px 10px 0;
    font-style: italic;
    color: var(--primary-light);
}

.article-content img {
    border-radius: 10px;
    margin: 24px 0;
    box-shadow: var(--shadow-sm);
}

.article-content a {
    color: var(--accent);
    font-weight: 600;
    text-decoration: underline;
    text-decoration-color: rgba(199,163,92,.4);
    text-underline-offset: 4px;
}

.article-content a:hover {
    color: var(--primary-light);
}

.article-content table {
    width: 100%;
    border-collapse: collapse;
    margin: 24px 0;
}

.article-content table th,
.article-content table td {
    border: 1px solid var(--border);
    padding: 12px 16px;
    text-align: left;
}

.article-content table th {
    background: var(--bg-alt);
}

.article-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 16px;
    margin-top: 40px;
    padding-top: 24px;
    border-top: 1px solid var(--border);
}

.article-tags {
    display: flex;
    align-items: center;
    gap: 8px;
}

.tag-label {
    font-size: 14px;
    color: var(--text-muted);
}

.tag-chip {
    background: var(--bg-alt);
    border: 1px solid var(--border);
    padding: 5px 14px;
    border-radius: 30px;
    font-size: 13px;
    color: var(--primary);
    font-weight: 600;
    transition: var(--transition);
}

.tag-chip:hover {
    background: var(--accent);
    color: #fff;
    border-color: var(--accent);
}

.article-share {
    display: flex;
    align-items: center;
    gap: 0;
}

.share-btn {
    width: 36px;
    height: 36px;
    border-radius: 10px;
    background: var(--bg-alt);
    border: 1px solid var(--border);
    color: var(--text-muted);
    transition: var(--transition);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    margin-left: 6px;
    font-size: 15px;
}

.share-btn:hover {
    background: var(--accent);
    color: #fff;
    border-color: var(--accent);
}

.article-sidebar {
    position: sticky;
    top: 30px;
}

.widget {
    background: #fff;
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 24px;
    margin-bottom: 24px;
    box-shadow: var(--shadow-sm);
}

.widget-title {
    font-size: 17px;
    font-weight: 700;
    color: var(--primary);
    margin-bottom: 18px;
    padding-bottom: 12px;
    border-bottom: 2px solid var(--bg-alt);
    display: flex;
    align-items: center;
    gap: 8px;
}

.widget-title i {
    color: var(--accent);
}

.info-list {
    list-style: none;
    margin: 0;
}

.info-list li {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    padding: 10px 0;
    border-bottom: 1px dashed var(--border);
    font-size: 14px;
}

.info-list li:last-child {
    border-bottom: 0;
}

.info-label {
    color: var(--text-muted);
    min-width: 80px;
    flex-shrink: 0;
}

.info-value {
    color: var(--text);
    font-weight: 600;
    word-break: break-all;
}

.guide-thumb {
    border-radius: 10px;
    width: 100%;
    height: auto;
    margin-bottom: 16px;
    box-shadow: var(--shadow-sm);
}

.widget-guide p {
    font-size: 14px;
    color: var(--text-muted);
    margin-bottom: 16px;
    line-height: 1.8;
}

.widget-tip .tip-text {
    font-size: 14px;
    color: var(--text-muted);
    margin: 0;
    line-height: 1.8;
    background: var(--bg-alt);
    padding: 14px 16px;
    border-radius: 10px;
}

.btn-brand {
    background: var(--primary);
    color: #fff;
    border: none;
    padding: 10px 22px;
    border-radius: 10px;
    font-weight: 600;
    transition: var(--transition);
    display: inline-flex;
    align-items: center;
    gap: 8px;
}

.btn-brand:hover {
    background: var(--primary-light);
    color: #fff;
    transform: translateY(-2px);
    box-shadow: var(--shadow-sm);
}

.btn-brand-accent {
    background: var(--accent);
    color: var(--primary);
}

.btn-brand-accent:hover {
    background: var(--accent-light);
    color: var(--primary);
}

.not-found-card {
    background: #fff;
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 64px 48px;
    text-align: center;
    box-shadow: var(--shadow-sm);
}

.not-found-icon {
    font-size: 56px;
    color: var(--accent);
    margin-bottom: 16px;
}

.not-found-card h2 {
    font-size: 28px;
    color: var(--primary);
    margin-bottom: 12px;
}

.not-found-card p {
    color: var(--text-muted);
    margin-bottom: 24px;
}

.related-section {
    background: var(--bg-alt);
    padding: 56px 0 64px;
    border-top: 1px solid var(--border);
}

.section-head {
    display: flex;
    justify-content: space-between;
    align-items: flex-end;
    margin-bottom: 32px;
    flex-wrap: wrap;
    gap: 12px;
}

.section-head h2 {
    font-size: 26px;
    font-weight: 800;
    color: var(--primary);
    margin: 0;
    position: relative;
    padding-left: 16px;
}

.section-head h2::before {
    content: '';
    position: absolute;
    left: 0;
    top: 6px;
    bottom: 6px;
    width: 4px;
    border-radius: 4px;
    background: var(--accent);
}

.section-sub {
    color: var(--text-muted);
    font-size: 14px;
    margin: 6px 0 0;
}

.related-card {
    background: #fff;
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 24px;
    height: 100%;
    transition: var(--transition);
}

.related-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow);
    border-color: var(--border-strong);
}

.related-icon {
    width: 46px;
    height: 46px;
    border-radius: 12px;
    background: rgba(199,163,92,.15);
    color: var(--accent);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 18px;
    margin-bottom: 16px;
}

.related-card h3 {
    font-size: 17px;
    font-weight: 700;
    color: var(--primary);
    margin-bottom: 8px;
}

.related-card p {
    font-size: 14px;
    color: var(--text-muted);
    margin-bottom: 0;
    line-height: 1.7;
}

.related-link {
    margin-top: 14px;
    display: inline-block;
    font-size: 14px;
    color: var(--accent);
    font-weight: 600;
    transition: var(--transition);
}

.related-link:hover {
    color: var(--primary);
}

.faq-section {
    padding: 64px 0;
}

.faq-card {
    background: #fff;
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 28px;
    box-shadow: var(--shadow-sm);
}

.accordion-button {
    background: transparent;
    box-shadow: none;
    padding: 18px 0;
    font-weight: 600;
    color: var(--text);
    font-size: 16px;
    border-bottom: 1px solid var(--border);
    border-radius: 0 !important;
}

.accordion-button::after {
    filter: none;
}

.accordion-button:not(.collapsed) {
    color: var(--primary);
    background: transparent;
    box-shadow: none;
    border-bottom-color: var(--accent);
}

.accordion-button:focus {
    box-shadow: none;
    border-color: var(--accent);
}

.accordion-item {
    border: 0;
    background: transparent;
}

.accordion-body {
    padding: 0 0 18px;
    color: var(--text-muted);
    line-height: 1.8;
    font-size: 15px;
}

.cta-section {
    background-color: var(--primary);
    background-image: linear-gradient(rgba(12,30,56,.94), rgba(12,30,56,.94)), url('/assets/images/backpic/back-2.png');
    background-size: cover;
    background-position: center;
    padding: 64px 0;
    color: #fff;
    text-align: center;
}

.cta-title {
    font-size: 28px;
    font-weight: 800;
    margin-bottom: 12px;
}

.cta-desc {
    font-size: 16px;
    color: rgba(255,255,255,.75);
    max-width: 560px;
    margin: 0 auto 28px;
}

.cta-buttons {
    display: flex;
    justify-content: center;
    gap: 14px;
    flex-wrap: wrap;
}

.btn-outline-light-accent {
    background: transparent;
    border: 1px solid rgba(255,255,255,.4);
    color: #fff;
    padding: 10px 22px;
    border-radius: 10px;
    font-weight: 600;
    transition: var(--transition);
    display: inline-flex;
    align-items: center;
    gap: 8px;
}

.btn-outline-light-accent:hover {
    background: var(--accent);
    color: var(--primary);
    border-color: var(--accent);
}

.site-footer {
    background: var(--primary-dark);
    color: rgba(255,255,255,.75);
    padding: 56px 0 24px;
}

.footer-brand h3 {
    color: #fff;
    font-size: 20px;
    font-weight: 800;
    margin-bottom: 12px;
}

.footer-brand p {
    font-size: 14px;
    opacity: .7;
    max-width: 320px;
    line-height: 1.8;
}

.footer-title {
    color: #fff;
    font-size: 15px;
    font-weight: 700;
    margin-bottom: 18px;
}

.footer-links {
    list-style: none;
    padding: 0;
    margin: 0;
}

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

.footer-links a {
    color: rgba(255,255,255,.7);
    font-size: 14px;
    transition: var(--transition);
}

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

.footer-divider {
    height: 1px;
    background: rgba(255,255,255,.12);
    margin: 36px 0 20px;
}

.footer-bottom {
    text-align: center;
}

.footer-bottom p {
    font-size: 13px;
    opacity: .6;
    margin: 0;
}

@media (min-width: 992px) and (max-width: 1199.98px) {
    .site-sidebar {
        width: 260px;
    }
}

@media (max-width: 991.98px) {
    .site-wrapper {
        flex-direction: column;
    }

    .site-sidebar {
        position: fixed;
        left: 0;
        top: 0;
        transform: translateX(-100%);
        transition: transform .3s ease;
        height: 100vh;
        box-shadow: var(--shadow-lg);
        width: 280px;
    }

    .site-sidebar.open {
        transform: translateX(0);
    }

    .mobile-topbar {
        display: flex;
        align-items: center;
        justify-content: space-between;
        background: var(--primary);
        color: #fff;
        padding: 12px 20px;
        position: sticky;
        top: 0;
        z-index: 1030;
        box-shadow: var(--shadow-sm);
    }

    .mobile-brand {
        display: flex;
        align-items: center;
        gap: 10px;
        color: #fff;
        font-weight: 700;
        font-size: 15px;
    }

    .mobile-toggle {
        background: rgba(255,255,255,.12);
        border: 1px solid rgba(255,255,255,.18);
        color: #fff;
        width: 40px;
        height: 40px;
        border-radius: 10px;
        font-size: 16px;
        transition: var(--transition);
    }

    .mobile-toggle:hover {
        background: rgba(255,255,255,.2);
    }

    .sidebar-overlay {
        display: block;
        position: fixed;
        inset: 0;
        background: rgba(8,20,38,.55);
        z-index: 1035;
        opacity: 0;
        pointer-events: none;
        transition: opacity .3s ease;
    }

    .sidebar-overlay.show {
        opacity: 1;
        pointer-events: auto;
    }

    .page-hero {
        padding: 56px 0 44px;
        min-height: 260px;
    }

    .article-main {
        padding: 32px;
    }
}

@media (max-width: 767.98px) {
    .page-hero h1 {
        font-size: 26px;
    }

    .article-section {
        padding: 32px 0 48px;
    }

    .article-main {
        padding: 20px;
    }

    .article-footer {
        flex-direction: column;
        align-items: flex-start;
    }

    .related-section {
        padding: 40px 0 48px;
    }

    .section-head {
        margin-bottom: 24px;
    }

    .faq-section {
        padding: 40px 0 48px;
    }

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

    .cta-title {
        font-size: 22px;
    }

    .site-footer {
        padding: 40px 0 20px;
    }

    .footer-divider {
        margin: 28px 0 16px;
    }
}

@media (max-width: 575.98px) {
    .page-hero {
        padding: 40px 0 36px;
        min-height: auto;
    }

    .page-hero h1 {
        font-size: 21px;
    }

    .hero-meta {
        flex-direction: column;
        gap: 6px;
    }

    .hero-meta span {
        display: flex;
        align-items: center;
    }

    .article-content {
        font-size: 15px;
    }

    .article-content h2 {
        font-size: 20px;
    }

    .widget {
        padding: 18px;
    }

    .faq-card {
        padding: 18px;
    }

    .not-found-card {
        padding: 40px 24px;
    }

    .brand-badge {
        width: 34px;
        height: 34px;
        font-size: 13px;
    }

    .business-brand-text {
        font-size: 16px;
    }
}