/* roulang page: index */
:root {
            --primary: #1a56db;
            --primary-dark: #1e429f;
            --primary-light: #e8eefc;
            --accent: #f59e0b;
            --accent-light: #fef3c7;
            --bg: #f8fafc;
            --surface: #ffffff;
            --text: #0f172a;
            --text-secondary: #64748b;
            --border: #e2e8f0;
            --radius: 14px;
            --radius-sm: 8px;
            --shadow-sm: 0 1px 3px rgba(15, 23, 42, 0.06);
            --shadow: 0 4px 20px rgba(15, 23, 42, 0.08);
            --shadow-lg: 0 12px 32px rgba(15, 23, 42, 0.12);
            --container: 1200px;
            --header-height: 72px;
            --transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
        }
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
            background: var(--bg);
            color: var(--text);
            line-height: 1.7;
            -webkit-font-smoothing: antialiased;
        }
        body.no-scroll {
            overflow: hidden;
        }
        a {
            color: inherit;
            text-decoration: none;
            transition: color var(--transition), opacity var(--transition);
        }
        img {
            max-width: 100%;
            display: block;
            height: auto;
        }
        button,
        input {
            font-family: inherit;
            font-size: inherit;
            border: none;
            outline: none;
            background: none;
        }
        ul,
        ol {
            list-style: none;
        }
        .container {
            max-width: var(--container);
            margin: 0 auto;
            padding: 0 24px;
        }
        .section {
            padding: 80px 0;
        }
        .section-alt {
            background: var(--surface);
            border-top: 1px solid var(--border);
            border-bottom: 1px solid var(--border);
        }
        .section-header {
            max-width: 680px;
            margin-bottom: 48px;
        }
        .section-header.center {
            text-align: center;
            margin-left: auto;
            margin-right: auto;
        }
        .section-tag {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: var(--primary-light);
            color: var(--primary);
            font-size: 13px;
            font-weight: 700;
            padding: 4px 14px;
            border-radius: 999px;
            letter-spacing: 0.5px;
            margin-bottom: 14px;
        }
        .section-title {
            font-size: 32px;
            font-weight: 800;
            line-height: 1.3;
            letter-spacing: -0.02em;
            color: var(--text);
        }
        .section-subtitle {
            font-size: 16px;
            color: var(--text-secondary);
            margin-top: 12px;
        }
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 12px 24px;
            border-radius: 10px;
            border: 1px solid transparent;
            font-weight: 600;
            font-size: 14px;
            cursor: pointer;
            transition: all var(--transition);
            white-space: nowrap;
        }
        .btn-primary {
            background: var(--primary);
            color: #fff;
            box-shadow: 0 2px 8px rgba(26, 86, 219, 0.2);
        }
        .btn-primary:hover {
            background: var(--primary-dark);
            transform: translateY(-2px);
            box-shadow: 0 6px 18px rgba(26, 86, 219, 0.3);
        }
        .btn-outline {
            background: transparent;
            border-color: var(--border);
            color: var(--text);
        }
        .btn-outline:hover {
            border-color: var(--primary);
            color: var(--primary);
            background: var(--primary-light);
            transform: translateY(-2px);
        }
        .btn-light {
            background: #fff;
            color: var(--primary);
        }
        .btn-light:hover {
            background: var(--primary-light);
            transform: translateY(-2px);
            box-shadow: 0 6px 18px rgba(0, 0, 0, 0.12);
        }
        .badge {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            background: var(--primary-light);
            color: var(--primary);
            font-size: 12px;
            font-weight: 700;
            padding: 3px 10px;
            border-radius: 999px;
            line-height: 1.4;
        }
        .badge-accent {
            background: var(--accent-light);
            color: #b45309;
        }
        .badge-dark {
            background: rgba(255, 255, 255, 0.15);
            color: #fff;
        }
        /* ===== Header / Nav ===== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: rgba(255, 255, 255, 0.95);
            backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border);
            box-shadow: 0 1px 4px rgba(15, 23, 42, 0.03);
        }
        .nav-wrap {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: var(--header-height);
            gap: 20px;
        }
        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 22px;
            font-weight: 800;
            color: var(--text);
            letter-spacing: -0.02em;
            flex-shrink: 0;
        }
        .logo-icon {
            width: 38px;
            height: 38px;
            border-radius: 10px;
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 17px;
            font-weight: 900;
            box-shadow: 0 3px 10px rgba(26, 86, 219, 0.25);
        }
        .main-nav {
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .nav-links {
            display: flex;
            align-items: center;
            gap: 4px;
        }
        .nav-links a {
            display: block;
            padding: 10px 16px;
            border-radius: 8px;
            font-weight: 500;
            font-size: 15px;
            color: var(--text-secondary);
            transition: all var(--transition);
            position: relative;
        }
        .nav-links a:hover {
            color: var(--primary);
            background: var(--primary-light);
        }
        .nav-links a.active {
            color: var(--primary);
            background: var(--primary-light);
            font-weight: 600;
        }
        .nav-links a.active::after {
            content: "";
            position: absolute;
            bottom: 4px;
            left: 50%;
            transform: translateX(-50%);
            width: 20px;
            height: 3px;
            border-radius: 3px;
            background: var(--primary);
        }
        .nav-right {
            display: flex;
            align-items: center;
            gap: 12px;
            flex-shrink: 0;
        }
        .search-box {
            display: flex;
            align-items: center;
            background: var(--bg);
            border: 1px solid var(--border);
            border-radius: 999px;
            padding: 5px 6px 5px 16px;
            gap: 8px;
            transition: border-color var(--transition), box-shadow var(--transition);
        }
        .search-box:focus-within {
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(26, 86, 219, 0.12);
        }
        .search-box input {
            width: 138px;
            font-size: 14px;
            color: var(--text);
        }
        .search-box input::placeholder {
            color: #94a3b8;
        }
        .search-box .search-btn {
            width: 30px;
            height: 30px;
            border-radius: 50%;
            background: var(--primary);
            color: #fff;
            cursor: pointer;
            transition: background var(--transition);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 13px;
        }
        .search-box .search-btn:hover {
            background: var(--primary-dark);
        }
        .menu-toggle {
            display: none;
            width: 42px;
            height: 42px;
            border-radius: 10px;
            border: 1px solid var(--border);
            background: var(--surface);
            color: var(--text);
            font-size: 18px;
            cursor: pointer;
            align-items: center;
            justify-content: center;
            transition: all var(--transition);
        }
        .menu-toggle:hover {
            border-color: var(--primary);
            color: var(--primary);
        }
        /* ===== Hero ===== */
        .hero {
            position: relative;
            background: url('/assets/images/backpic/back-1.png') center center / cover no-repeat;
            color: #fff;
            padding: 110px 0 90px;
            overflow: hidden;
        }
        .hero::before {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(120deg, rgba(15, 23, 42, 0.85) 0%, rgba(26, 86, 219, 0.65) 50%, rgba(15, 23, 42, 0.4) 100%);
        }
        .hero .container {
            position: relative;
            z-index: 2;
        }
        .hero-content {
            max-width: 680px;
        }
        .hero-tag {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(255, 255, 255, 0.15);
            border: 1px solid rgba(255, 255, 255, 0.25);
            backdrop-filter: blur(6px);
            color: #fff;
            padding: 6px 16px;
            border-radius: 999px;
            font-size: 13px;
            font-weight: 600;
            margin-bottom: 24px;
        }
        .hero h1 {
            font-size: 46px;
            font-weight: 900;
            line-height: 1.25;
            letter-spacing: -0.03em;
            margin-bottom: 20px;
        }
        .hero p {
            font-size: 18px;
            line-height: 1.7;
            color: rgba(255, 255, 255, 0.9);
            margin-bottom: 32px;
            max-width: 540px;
        }
        .hero-actions {
            display: flex;
            gap: 14px;
            flex-wrap: wrap;
        }
        .hero-stats {
            display: flex;
            gap: 40px;
            margin-top: 56px;
            padding-top: 32px;
            border-top: 1px solid rgba(255, 255, 255, 0.2);
            flex-wrap: wrap;
        }
        .hero-stat .num {
            font-size: 30px;
            font-weight: 900;
            letter-spacing: -0.02em;
        }
        .hero-stat .label {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.75);
            margin-top: 2px;
        }
        /* ===== Ticker ===== */
        .ticker {
            background: var(--surface);
            border-bottom: 1px solid var(--border);
            padding: 12px 0;
            overflow: hidden;
        }
        .ticker-inner {
            display: flex;
            align-items: center;
            gap: 20px;
            white-space: nowrap;
            animation: tickerScroll 30s linear infinite;
        }
        .ticker-item {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 14px;
            color: var(--text-secondary);
        }
        .ticker-item i {
            color: var(--accent);
            font-size: 12px;
        }
        @keyframes tickerScroll {
            0% {
                transform: translateX(0);
            }
            100% {
                transform: translateX(-50%);
            }
        }
        /* ===== Feature Cards ===== */
        .feature-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }
        .feature-card {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 36px 30px;
            transition: all var(--transition);
            position: relative;
            overflow: hidden;
        }
        .feature-card::before {
            content: "";
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 4px;
            background: linear-gradient(90deg, var(--primary), var(--accent));
            opacity: 0;
            transition: opacity var(--transition);
        }
        .feature-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-lg);
            border-color: transparent;
        }
        .feature-card:hover::before {
            opacity: 1;
        }
        .feature-icon {
            width: 56px;
            height: 56px;
            border-radius: 14px;
            background: var(--primary-light);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 22px;
            margin-bottom: 20px;
        }
        .feature-card h3 {
            font-size: 20px;
            font-weight: 700;
            margin-bottom: 10px;
        }
        .feature-card p {
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.65;
        }
        /* ===== Category Cards ===== */
        .category-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }
        .category-card {
            border-radius: var(--radius);
            overflow: hidden;
            background: var(--surface);
            border: 1px solid var(--border);
            transition: all var(--transition);
            display: block;
        }
        .category-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-lg);
            border-color: transparent;
        }
        .category-card .card-img {
            height: 200px;
            overflow: hidden;
            position: relative;
        }
        .category-card .card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s ease;
        }
        .category-card:hover .card-img img {
            transform: scale(1.05);
        }
        .category-card .card-img::after {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, transparent 50%, rgba(15, 23, 42, 0.3) 100%);
        }
        .category-card .card-body {
            padding: 26px 28px;
        }
        .category-card h3 {
            font-size: 20px;
            font-weight: 700;
            margin-bottom: 8px;
        }
        .category-card p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.6;
            margin-bottom: 16px;
        }
        .category-card .card-link {
            color: var(--primary);
            font-size: 14px;
            font-weight: 600;
            display: inline-flex;
            align-items: center;
            gap: 6px;
            transition: gap var(--transition);
        }
        .category-card .card-link i {
            transition: transform var(--transition);
        }
        .category-card:hover .card-link i {
            transform: translateX(4px);
        }
        /* ===== News Layout ===== */
        .news-layout {
            display: grid;
            grid-template-columns: 1fr 360px;
            gap: 36px;
            align-items: start;
        }
        .news-list {
            display: flex;
            flex-direction: column;
            gap: 16px;
        }
        .news-item {
            display: flex;
            gap: 20px;
            align-items: stretch;
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 22px 24px;
            transition: all var(--transition);
        }
        .news-item:hover {
            box-shadow: var(--shadow);
            border-color: transparent;
            transform: translateY(-2px);
        }
        .news-item .news-info {
            flex: 1;
            min-width: 0;
        }
        .news-item .news-title {
            font-size: 17px;
            font-weight: 700;
            line-height: 1.45;
            margin: 8px 0 6px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .news-item .news-title a:hover {
            color: var(--primary);
        }
        .news-item .news-desc {
            font-size: 14px;
            color: var(--text-secondary);
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            margin-bottom: 10px;
        }
        .news-item .news-meta {
            display: flex;
            align-items: center;
            gap: 12px;
            font-size: 13px;
            color: #94a3b8;
        }
        .news-item .news-meta i {
            font-size: 12px;
        }
        .news-sidebar {
            display: flex;
            flex-direction: column;
            gap: 20px;
        }
        .sidebar-card {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 24px;
        }
        .sidebar-card .side-title {
            font-size: 17px;
            font-weight: 700;
            margin-bottom: 16px;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .sidebar-card .side-title i {
            color: var(--primary);
        }
        .rank-list {
            display: flex;
            flex-direction: column;
            gap: 14px;
        }
        .rank-item {
            display: flex;
            gap: 12px;
            align-items: center;
        }
        .rank-num {
            width: 26px;
            height: 26px;
            border-radius: 8px;
            background: var(--primary-light);
            color: var(--primary);
            font-size: 13px;
            font-weight: 800;
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
        }
        .rank-item a {
            font-size: 14px;
            color: var(--text);
            line-height: 1.4;
            font-weight: 500;
        }
        .rank-item a:hover {
            color: var(--primary);
        }
        .sidebar-img-card {
            position: relative;
            border-radius: var(--radius);
            overflow: hidden;
        }
        .sidebar-img-card img {
            width: 100%;
            height: 180px;
            object-fit: cover;
        }
        .sidebar-img-card .img-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, transparent 40%, rgba(15, 23, 42, 0.8) 100%);
            padding: 20px;
            display: flex;
            flex-direction: column;
            justify-content: flex-end;
            color: #fff;
        }
        .sidebar-img-card .overlay-title {
            font-size: 17px;
            font-weight: 700;
            line-height: 1.4;
        }
        .sidebar-img-card .overlay-sub {
            font-size: 13px;
            color: rgba(255, 255, 255, 0.85);
            margin-top: 4px;
        }
        /* ===== Stats Band ===== */
        .stats-band {
            background: url('/assets/images/backpic/back-2.png') center center / cover no-repeat fixed;
            color: #fff;
            padding: 90px 0;
            position: relative;
        }
        .stats-band::before {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(120deg, rgba(15, 23, 42, 0.92), rgba(26, 86, 219, 0.78));
        }
        .stats-band .container {
            position: relative;
            z-index: 2;
        }
        .stat-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 40px;
            text-align: center;
        }
        .stat-box .num {
            font-size: 42px;
            font-weight: 900;
            letter-spacing: -0.03em;
            line-height: 1.2;
        }
        .stat-box .label {
            font-size: 15px;
            color: rgba(255, 255, 255, 0.8);
            margin-top: 6px;
        }
        .stat-box .divider {
            width: 36px;
            height: 3px;
            border-radius: 3px;
            background: var(--accent);
            margin: 14px auto 0;
        }
        /* ===== Process ===== */
        .process-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }
        .process-step {
            text-align: center;
            padding: 32px 24px;
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            position: relative;
            transition: all var(--transition);
        }
        .process-step:hover {
            box-shadow: var(--shadow);
            transform: translateY(-4px);
        }
        .step-num {
            width: 48px;
            height: 48px;
            border-radius: 50%;
            background: var(--primary);
            color: #fff;
            font-weight: 900;
            font-size: 20px;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 16px;
            box-shadow: 0 4px 12px rgba(26, 86, 219, 0.25);
        }
        .process-step h3 {
            font-size: 17px;
            font-weight: 700;
            margin-bottom: 8px;
        }
        .process-step p {
            font-size: 14px;
            color: var(--text-secondary);
        }
        /* ===== Featured ===== */
        .featured-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }
        .featured-card {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            overflow: hidden;
            transition: all var(--transition);
            display: block;
        }
        .featured-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-lg);
            border-color: transparent;
        }
        .featured-card img {
            height: 150px;
            width: 100%;
            object-fit: cover;
        }
        .featured-card .featured-body {
            padding: 20px;
        }
        .featured-card .featured-cat {
            font-size: 12px;
            color: var(--primary);
            font-weight: 700;
            text-transform: uppercase;
            letter-spacing: 0.5px;
        }
        .featured-card h3 {
            font-size: 16px;
            font-weight: 700;
            line-height: 1.4;
            margin: 6px 0;
        }
        .featured-card p {
            font-size: 13px;
            color: var(--text-secondary);
            line-height: 1.6;
        }
        /* ===== FAQ ===== */
        .faq-wrap {
            max-width: 860px;
            margin: 0 auto;
        }
        .faq-item {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            margin-bottom: 14px;
            overflow: hidden;
            transition: border-color var(--transition);
        }
        .faq-item.open {
            border-color: var(--primary);
        }
        .faq-question {
            padding: 22px 26px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            font-weight: 600;
            font-size: 16px;
            cursor: pointer;
            gap: 16px;
        }
        .faq-question .faq-icon {
            width: 30px;
            height: 30px;
            border-radius: 50%;
            background: var(--primary-light);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            transition: all var(--transition);
            flex-shrink: 0;
        }
        .faq-item.open .faq-icon {
            transform: rotate(45deg);
            background: var(--primary);
            color: #fff;
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease, padding 0.3s ease;
            padding: 0 26px;
        }
        .faq-item.open .faq-answer {
            max-height: 400px;
            padding: 0 26px 22px;
        }
        .faq-answer p {
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.75;
        }
        /* ===== CTA ===== */
        .cta-band {
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            border-radius: var(--radius);
            padding: 64px 48px;
            position: relative;
            overflow: hidden;
            text-align: center;
            color: #fff;
        }
        .cta-band::before {
            content: "";
            position: absolute;
            top: -50%;
            right: -20%;
            width: 400px;
            height: 400px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.08);
        }
        .cta-band h2 {
            font-size: 32px;
            font-weight: 800;
            margin-bottom: 12px;
        }
        .cta-band p {
            font-size: 16px;
            color: rgba(255, 255, 255, 0.85);
            max-width: 500px;
            margin: 0 auto 28px;
        }
        .cta-actions {
            display: flex;
            gap: 14px;
            justify-content: center;
            flex-wrap: wrap;
            position: relative;
            z-index: 2;
        }
        /* ===== Footer ===== */
        .site-footer {
            background: #0f172a;
            color: #94a3b8;
            padding: 64px 0 0;
            margin-top: 40px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 40px;
            padding-bottom: 48px;
        }
        .footer-brand .logo {
            color: #fff;
            margin-bottom: 14px;
        }
        .footer-brand .logo .logo-icon {
            background: linear-gradient(135deg, var(--primary), var(--accent));
        }
        .footer-brand p {
            font-size: 14px;
            line-height: 1.7;
            max-width: 320px;
        }
        .footer-col h4 {
            color: #fff;
            font-size: 15px;
            font-weight: 600;
            margin-bottom: 16px;
        }
        .footer-col a {
            display: block;
            padding: 5px 0;
            font-size: 14px;
            color: #94a3b8;
            transition: color var(--transition), padding-left var(--transition);
        }
        .footer-col a:hover {
            color: #fff;
            padding-left: 6px;
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding: 20px 0;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            flex-wrap: wrap;
            font-size: 13px;
        }
        .footer-bottom .copyright {
            color: #64748b;
        }
        .footer-bottom .legal-links a {
            color: #94a3b8;
            margin-left: 20px;
        }
        .footer-bottom .legal-links a:hover {
            color: #fff;
        }
        /* ===== Responsive ===== */
        @media (max-width: 1024px) {
            .featured-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .stat-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 32px;
            }
            .footer-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .news-layout {
                grid-template-columns: 1fr;
            }
            .hero h1 {
                font-size: 38px;
            }
        }
        @media (max-width: 768px) {
            .section {
                padding: 60px 0;
            }
            .menu-toggle {
                display: flex;
            }
            .main-nav {
                order: 3;
            }
            .nav-right {
                gap: 8px;
            }
            .nav-right .search-box {
                display: none;
            }
            .nav-links {
                position: fixed;
                top: var(--header-height);
                left: 0;
                right: 0;
                background: #fff;
                flex-direction: column;
                align-items: stretch;
                padding: 16px;
                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 ease;
                z-index: 999;
            }
            .nav-links.open {
                transform: translateY(0);
                opacity: 1;
                pointer-events: auto;
            }
            .nav-links a {
                padding: 13px 18px;
                font-size: 16px;
            }
            .nav-links a.active::after {
                bottom: auto;
                left: 0;
                top: 50%;
                transform: translateY(-50%);
                width: 3px;
                height: 20px;
            }
            .feature-grid {
                grid-template-columns: 1fr;
            }
            .category-grid {
                grid-template-columns: 1fr;
            }
            .process-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .hero {
                padding: 70px 0 60px;
            }
            .hero h1 {
                font-size: 32px;
            }
            .hero p {
                font-size: 16px;
            }
            .hero-stats {
                gap: 24px;
                margin-top: 36px;
            }
            .cta-band {
                padding: 48px 28px;
            }
            .cta-band h2 {
                font-size: 26px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            .section-title {
                font-size: 26px;
            }
        }
        @media (max-width: 520px) {
            .container {
                padding: 0 16px;
            }
            .nav-wrap {
                gap: 12px;
            }
            .nav-right .btn {
                padding: 10px 14px;
                font-size: 13px;
            }
            .logo {
                font-size: 19px;
            }
            .logo-icon {
                width: 34px;
                height: 34px;
                font-size: 15px;
            }
            .hero h1 {
                font-size: 28px;
            }
            .featured-grid {
                grid-template-columns: 1fr;
            }
            .process-grid {
                grid-template-columns: 1fr;
            }
            .stat-grid {
                grid-template-columns: 1fr;
                gap: 28px;
            }
            .news-item {
                flex-direction: column;
                padding: 18px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
        }

/* roulang page: category1 */
:root {
            --primary: #1e3a5f;
            --primary-light: #2563eb;
            --primary-soft: #e8f0fe;
            --accent: #f5a524;
            --accent-soft: #fef7e8;
            --bg: #f6f8fb;
            --bg-white: #ffffff;
            --bg-dark: #0f2239;
            --text: #17293e;
            --text-light: #5c7186;
            --text-muted: #8da0b5;
            --border: #e5eaf0;
            --radius-sm: 8px;
            --radius: 14px;
            --radius-lg: 20px;
            --shadow-sm: 0 2px 10px rgba(15, 34, 57, 0.05);
            --shadow: 0 8px 30px rgba(15, 34, 57, 0.08);
            --shadow-lg: 0 18px 50px rgba(15, 34, 57, 0.14);
            --space-section: 82px;
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
            background: var(--bg);
            color: var(--text);
            line-height: 1.7;
            -webkit-font-smoothing: antialiased;
        }

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

        a {
            color: inherit;
            text-decoration: none;
            transition: color 0.2s ease;
        }

        ul,
        ol {
            list-style: none;
        }

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

        button {
            cursor: pointer;
        }

        .container {
            width: 100%;
            max-width: 1220px;
            margin: 0 auto;
            padding: 0 24px;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 10px 22px;
            border-radius: 999px;
            font-size: 14px;
            font-weight: 600;
            line-height: 1.4;
            transition: all 0.25s ease;
            white-space: nowrap;
            border: 1px solid transparent;
        }

        .btn-primary {
            background: var(--primary-light);
            color: #fff;
            box-shadow: 0 4px 14px rgba(37, 99, 235, 0.28);
        }

        .btn-primary:hover {
            background: #1e4fd8;
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(37, 99, 235, 0.36);
        }

        .btn-outline {
            border-color: var(--border);
            color: var(--text);
            background: var(--bg-white);
        }

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

        .btn-accent {
            background: var(--accent);
            color: #1a2a3a;
            box-shadow: 0 4px 14px rgba(245, 165, 36, 0.3);
        }

        .btn-accent:hover {
            background: #e09a18;
            transform: translateY(-2px);
            box-shadow: 0 6px 22px rgba(245, 165, 36, 0.4);
        }

        /* ========== Header ========== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(255, 255, 255, 0.94);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border-bottom: 1px solid var(--border);
            box-shadow: 0 2px 12px rgba(15, 34, 57, 0.04);
        }

        .nav-wrap {
            display: flex;
            align-items: center;
            justify-content: space-between;
            min-height: 70px;
            gap: 20px;
        }

        .logo {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            font-size: 20px;
            font-weight: 800;
            color: var(--text);
            flex-shrink: 0;
        }

        .logo-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 36px;
            height: 36px;
            border-radius: 10px;
            background: linear-gradient(135deg, var(--primary-light), var(--primary));
            color: #fff;
            font-size: 17px;
            font-weight: 800;
            box-shadow: 0 4px 12px rgba(37, 99, 235, 0.3);
        }

        .main-nav {
            display: flex;
            align-items: center;
            flex: 1;
            justify-content: center;
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 4px;
        }

        .nav-links li a {
            display: block;
            padding: 8px 16px;
            border-radius: 999px;
            font-size: 15px;
            font-weight: 500;
            color: var(--text-light);
            transition: all 0.2s ease;
        }

        .nav-links li a:hover {
            color: var(--primary-light);
            background: var(--primary-soft);
        }

        .nav-links li a.active {
            color: var(--primary-light);
            background: var(--primary-soft);
            font-weight: 600;
        }

        .nav-right {
            display: flex;
            align-items: center;
            gap: 12px;
            flex-shrink: 0;
        }

        .search-box {
            display: flex;
            align-items: center;
            gap: 8px;
            background: var(--bg);
            border: 1px solid var(--border);
            border-radius: 999px;
            padding: 7px 8px 7px 14px;
            min-width: 180px;
            transition: border-color 0.2s ease, box-shadow 0.2s ease;
        }

        .search-box:focus-within {
            border-color: var(--primary-light);
            box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.12);
        }

        .search-box input {
            flex: 1;
            min-width: 0;
            font-size: 13px;
            color: var(--text);
            background: transparent;
        }

        .search-box input::placeholder {
            color: var(--text-muted);
        }

        .search-btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background: var(--primary-light);
            color: #fff;
            font-size: 12px;
            transition: background 0.2s ease;
        }

        .search-btn:hover {
            background: var(--primary);
        }

        .menu-toggle {
            display: none;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            border-radius: 10px;
            background: var(--bg);
            border: 1px solid var(--border);
            color: var(--text);
            font-size: 17px;
        }

        /* ========== Page Banner ========== */
        .page-banner {
            position: relative;
            padding: 110px 0 90px;
            background: linear-gradient(120deg, rgba(15, 34, 57, 0.92), rgba(30, 58, 95, 0.78)), url('/assets/images/backpic/back-1.png') center/cover no-repeat;
            color: #fff;
            overflow: hidden;
        }

        .page-banner::after {
            content: '';
            position: absolute;
            right: -80px;
            top: -80px;
            width: 340px;
            height: 340px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(37, 99, 235, 0.35), transparent 70%);
            z-index: 1;
        }

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

        .banner-tag {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(255, 255, 255, 0.14);
            border: 1px solid rgba(255, 255, 255, 0.22);
            padding: 6px 16px;
            border-radius: 999px;
            font-size: 13px;
            font-weight: 500;
            margin-bottom: 22px;
            backdrop-filter: blur(6px);
        }

        .banner-tag i {
            color: var(--accent);
        }

        .page-banner h1 {
            font-size: 44px;
            font-weight: 800;
            line-height: 1.25;
            margin-bottom: 16px;
            letter-spacing: -0.02em;
        }

        .page-banner p {
            font-size: 16px;
            line-height: 1.8;
            color: rgba(255, 255, 255, 0.78);
            max-width: 560px;
            margin-bottom: 28px;
        }

        .page-banner .banner-meta {
            display: flex;
            align-items: center;
            gap: 24px;
            flex-wrap: wrap;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.65);
        }

        .banner-meta span {
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }

        .banner-meta i {
            color: var(--accent);
        }

        .breadcrumb {
            position: absolute;
            bottom: -35px;
            left: 50%;
            transform: translateX(-50%);
            background: var(--bg-white);
            box-shadow: var(--shadow);
            border-radius: 999px;
            padding: 10px 28px;
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 13px;
            color: var(--text-light);
            z-index: 3;
            white-space: nowrap;
        }

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

        .breadcrumb i {
            font-size: 11px;
            color: var(--text-muted);
        }

        /* ========== Ticker ========== */
        .ticker-bar {
            background: var(--bg-dark);
            color: #fff;
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
            overflow: hidden;
            padding: 12px 0;
        }

        .ticker-wrap {
            display: flex;
            align-items: center;
            gap: 0;
            overflow: hidden;
            white-space: nowrap;
        }

        .ticker-label {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: var(--accent);
            color: #1a2a3a;
            font-size: 12px;
            font-weight: 700;
            padding: 4px 14px;
            border-radius: 999px;
            margin-right: 24px;
            flex-shrink: 0;
            z-index: 2;
        }

        .ticker-track {
            display: flex;
            align-items: center;
            gap: 60px;
            animation: tickerMove 32s linear infinite;
            flex-shrink: 0;
        }

        .ticker-track span {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.72);
        }

        .ticker-track span i {
            color: var(--accent);
            font-size: 8px;
        }

        @keyframes tickerMove {
            0% { transform: translateX(0); }
            100% { transform: translateX(-50%); }
        }

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

        .section-alt {
            background: var(--bg-white);
            border-top: 1px solid var(--border);
            border-bottom: 1px solid var(--border);
        }

        .section-head {
            display: flex;
            align-items: flex-end;
            justify-content: space-between;
            gap: 20px;
            margin-bottom: 36px;
        }

        .section-head-left {
            display: flex;
            align-items: center;
            gap: 14px;
        }

        .section-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 42px;
            height: 42px;
            border-radius: 12px;
            background: var(--primary-soft);
            color: var(--primary-light);
            font-size: 17px;
        }

        .section-title {
            font-size: 26px;
            font-weight: 800;
            line-height: 1.3;
            letter-spacing: -0.01em;
        }

        .section-sub {
            font-size: 14px;
            color: var(--text-light);
            margin-top: 4px;
        }

        .section-more {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 13px;
            font-weight: 600;
            color: var(--primary-light);
            padding: 8px 16px;
            border-radius: 999px;
            background: var(--primary-soft);
            transition: all 0.2s ease;
        }

        .section-more:hover {
            background: var(--primary-light);
            color: #fff;
        }

        /* ========== News Layout ========== */
        .news-layout {
            display: grid;
            grid-template-columns: 1fr 380px;
            gap: 40px;
            align-items: start;
        }

        .news-main {
            display: flex;
            flex-direction: column;
            gap: 20px;
        }

        .news-item {
            display: grid;
            grid-template-columns: 240px 1fr;
            gap: 20px;
            background: var(--bg-white);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 16px;
            transition: all 0.3s ease;
        }

        .news-item:hover {
            box-shadow: var(--shadow);
            transform: translateY(-2px);
            border-color: rgba(37, 99, 235, 0.3);
        }

        .news-item.featured {
            grid-template-columns: 1fr;
            padding-bottom: 24px;
            background: linear-gradient(145deg, var(--bg-white), #f6f9ff);
            border-color: rgba(37, 99, 235, 0.12);
        }

        .news-item.featured .news-thumb {
            height: 220px;
        }

        .news-thumb {
            position: relative;
            border-radius: var(--radius-sm);
            overflow: hidden;
            height: 150px;
        }

        .news-thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.4s ease;
        }

        .news-item:hover .news-thumb img {
            transform: scale(1.04);
        }

        .news-tag {
            position: absolute;
            left: 10px;
            top: 10px;
            z-index: 2;
            background: var(--accent);
            color: #1a2a3a;
            font-size: 11px;
            font-weight: 700;
            padding: 4px 12px;
            border-radius: 999px;
            box-shadow: 0 2px 8px rgba(0, 0, 0, 0.14);
        }

        .news-tag.blue {
            background: var(--primary-light);
            color: #fff;
        }

        .news-body {
            display: flex;
            flex-direction: column;
            justify-content: center;
        }

        .news-body h3 {
            font-size: 17px;
            font-weight: 700;
            line-height: 1.5;
            margin-bottom: 8px;
        }

        .news-body h3 a:hover {
            color: var(--primary-light);
        }

        .news-body p {
            font-size: 13px;
            color: var(--text-light);
            line-height: 1.7;
            margin-bottom: 12px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .news-meta {
            display: flex;
            align-items: center;
            gap: 16px;
            font-size: 12px;
            color: var(--text-muted);
        }

        .news-meta span {
            display: inline-flex;
            align-items: center;
            gap: 5px;
        }

        .news-meta i {
            font-size: 12px;
            color: var(--text-muted);
        }

        /* Side */
        .news-side {
            display: flex;
            flex-direction: column;
            gap: 24px;
        }

        .side-block {
            background: var(--bg-white);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 24px;
        }

        .side-block-title {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 16px;
            font-weight: 700;
            margin-bottom: 18px;
        }

        .side-block-title i {
            width: 30px;
            height: 30px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            border-radius: 8px;
            background: var(--accent-soft);
            color: var(--accent);
            font-size: 14px;
        }

        .ranking-list {
            display: flex;
            flex-direction: column;
        }

        .ranking-item {
            display: flex;
            align-items: flex-start;
            gap: 14px;
            padding: 13px 0;
            border-bottom: 1px dashed var(--border);
            transition: background 0.2s ease;
        }

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

        .ranking-num {
            font-size: 20px;
            font-weight: 800;
            color: var(--border);
            font-style: italic;
            line-height: 1.2;
            min-width: 30px;
        }

        .ranking-item:nth-child(1) .ranking-num {
            color: var(--accent);
        }

        .ranking-item:nth-child(2) .ranking-num {
            color: var(--primary-light);
        }

        .ranking-item:nth-child(3) .ranking-num {
            color: var(--primary);
        }

        .ranking-title {
            font-size: 14px;
            font-weight: 500;
            line-height: 1.5;
            flex: 1;
            color: var(--text);
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .ranking-title:hover {
            color: var(--primary-light);
        }

        .ranking-views {
            font-size: 12px;
            color: var(--text-muted);
            display: flex;
            align-items: center;
            gap: 4px;
            white-space: nowrap;
        }

        /* Tags */
        .tag-cloud {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
        }

        .tag-item {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 12px;
            color: var(--text-light);
            background: var(--bg);
            border: 1px solid var(--border);
            border-radius: 999px;
            padding: 5px 14px;
            transition: all 0.2s ease;
        }

        .tag-item:hover {
            background: var(--primary-light);
            color: #fff;
            border-color: var(--primary-light);
        }

        .tag-item i {
            font-size: 10px;
        }

        /* ========== Topics ========== */
        .topics-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }

        .topic-card {
            background: var(--bg-white);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            overflow: hidden;
            transition: all 0.35s ease;
        }

        .topic-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-lg);
            border-color: rgba(37, 99, 235, 0.25);
        }

        .topic-cover {
            position: relative;
            height: 160px;
            border-radius: 0;
            overflow: hidden;
        }

        .topic-cover img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s ease;
        }

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

        .topic-cover::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, transparent 45%, rgba(15, 34, 57, 0.35));
        }

        .topic-tag {
            position: absolute;
            z-index: 2;
            left: 14px;
            top: 14px;
            background: rgba(255, 255, 255, 0.92);
            color: var(--text);
            font-size: 11px;
            font-weight: 700;
            padding: 3px 12px;
            border-radius: 999px;
            backdrop-filter: blur(4px);
        }

        .topic-body {
            padding: 20px;
        }

        .topic-body h3 {
            font-size: 17px;
            font-weight: 700;
            margin-bottom: 6px;
        }

        .topic-body p {
            font-size: 13px;
            color: var(--text-light);
            line-height: 1.7;
            margin-bottom: 14px;
        }

        .topic-meta {
            display: flex;
            align-items: center;
            justify-content: space-between;
            border-top: 1px solid var(--border);
            padding-top: 12px;
            font-size: 12px;
            color: var(--text-muted);
        }

        .topic-meta a {
            color: var(--primary-light);
            font-weight: 600;
            display: inline-flex;
            align-items: center;
            gap: 4px;
        }

        /* ========== Stats ========== */
        .stats-section {
            background: linear-gradient(120deg, rgba(15, 34, 57, 0.96), rgba(30, 58, 95, 0.92)), url('/assets/images/backpic/back-2.png') center/cover fixed no-repeat;
            padding: 72px 0;
            color: #fff;
        }

        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 32px;
            text-align: center;
        }

        .stat-item {
            padding: 28px 20px;
            border-radius: var(--radius);
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid rgba(255, 255, 255, 0.1);
            transition: background 0.3s ease, transform 0.3s ease;
        }

        .stat-item:hover {
            background: rgba(255, 255, 255, 0.12);
            transform: translateY(-4px);
        }

        .stat-icon {
            font-size: 26px;
            margin-bottom: 12px;
            color: var(--accent);
        }

        .stat-num {
            font-size: 40px;
            font-weight: 800;
            line-height: 1.2;
            letter-spacing: -0.02em;
        }

        .stat-label {
            font-size: 13px;
            color: rgba(255, 255, 255, 0.66);
            margin-top: 6px;
        }

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

        .subscribe-box {
            background: linear-gradient(135deg, var(--primary-soft), var(--bg-white));
            border: 1px solid rgba(37, 99, 235, 0.14);
            border-radius: var(--radius-lg);
            padding: 56px 48px;
            text-align: center;
            position: relative;
            overflow: hidden;
        }

        .subscribe-box::before {
            content: '';
            position: absolute;
            right: -60px;
            top: -60px;
            width: 220px;
            height: 220px;
            border-radius: 50%;
            background: rgba(37, 99, 235, 0.08);
        }

        .subscribe-box h2 {
            font-size: 28px;
            font-weight: 800;
            margin-bottom: 10px;
        }

        .subscribe-box p {
            font-size: 14px;
            color: var(--text-light);
            max-width: 520px;
            margin: 0 auto 28px;
        }

        .subscribe-form {
            display: flex;
            gap: 10px;
            max-width: 480px;
            margin: 0 auto;
        }

        .subscribe-form input {
            flex: 1;
            min-width: 0;
            background: var(--bg-white);
            border: 1px solid var(--border);
            border-radius: 999px;
            padding: 12px 20px;
            font-size: 14px;
            color: var(--text);
            transition: border-color 0.2s ease, box-shadow 0.2s ease;
        }

        .subscribe-form input:focus {
            border-color: var(--primary-light);
            box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.12);
        }

        .subscribe-tip {
            margin-top: 16px;
            font-size: 12px;
            color: var(--text-muted);
        }

        /* ========== FAQ ========== */
        .faq-section {
            background: var(--bg-white);
            padding: var(--space-section) 0;
            border-top: 1px solid var(--border);
        }

        .faq-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 16px;
        }

        .faq-item {
            border: 1px solid var(--border);
            border-radius: var(--radius);
            background: var(--bg-white);
            overflow: hidden;
            transition: border-color 0.2s ease, box-shadow 0.2s ease;
        }

        .faq-item:hover {
            border-color: rgba(37, 99, 235, 0.3);
            box-shadow: var(--shadow-sm);
        }

        .faq-item summary {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 18px 22px;
            font-size: 15px;
            font-weight: 600;
            color: var(--text);
            cursor: pointer;
            list-style: none;
            user-select: none;
            transition: color 0.2s ease;
        }

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

        .faq-item summary::after {
            content: '+';
            margin-left: auto;
            font-size: 22px;
            font-weight: 400;
            color: var(--primary-light);
            transition: transform 0.2s ease;
            line-height: 1;
        }

        .faq-item[open] summary::after {
            transform: rotate(45deg);
        }

        .faq-item[open] summary {
            color: var(--primary-light);
        }

        .faq-item i {
            color: var(--accent);
            font-size: 15px;
        }

        .faq-answer {
            padding: 0 22px 18px;
            font-size: 13.5px;
            color: var(--text-light);
            line-height: 1.8;
            border-top: 1px dashed var(--border);
            margin-top: 4px;
            padding-top: 14px;
        }

        /* ========== Footer ========== */
        .site-footer {
            background: var(--bg-dark);
            color: #aebbc9;
            padding: 64px 0 30px;
            border-top: 3px solid var(--primary-light);
        }

        .site-footer .container {
            position: relative;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 44px;
        }

        .footer-brand .logo {
            color: #fff;
            font-size: 20px;
            font-weight: 800;
            margin-bottom: 16px;
        }

        .footer-brand .logo-icon {
            background: linear-gradient(135deg, var(--accent), #d98f12);
            color: #1a2a3a;
            box-shadow: none;
        }

        .footer-brand p {
            font-size: 14px;
            line-height: 1.8;
            color: #8f9fb0;
            max-width: 300px;
        }

        .footer-col {
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .footer-col h4 {
            color: #fff;
            font-size: 15px;
            font-weight: 700;
            margin-bottom: 8px;
        }

        .footer-col a {
            font-size: 14px;
            color: #8f9fb0;
            transition: color 0.2s ease, padding-left 0.2s ease;
        }

        .footer-col a:hover {
            color: #fff;
            padding-left: 4px;
        }

        .footer-bottom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding-top: 26px;
            flex-wrap: wrap;
            gap: 12px;
        }

        .footer-bottom .copyright {
            font-size: 13px;
            color: #7a8b9d;
        }

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

        .legal-links a {
            font-size: 13px;
            color: #7a8b9d;
            transition: color 0.2s ease;
        }

        .legal-links a:hover {
            color: #fff;
        }

        /* ========== Responsive ========== */
        @media (max-width: 1024px) {
            .nav-wrap {
                gap: 10px;
            }

            .search-box {
                min-width: 0;
                width: 150px;
            }

            .nav-links li a {
                padding: 7px 12px;
                font-size: 14px;
            }

            .news-layout {
                grid-template-columns: 1fr;
            }

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

            .footer-grid {
                grid-template-columns: 1.5fr 1fr 1fr;
            }
        }

        @media (max-width: 768px) {
            .site-header {
                position: relative;
            }

            .menu-toggle {
                display: inline-flex;
            }

            .nav-links {
                position: absolute;
                top: 70px;
                left: 0;
                right: 0;
                background: var(--bg-white);
                flex-direction: column;
                align-items: stretch;
                padding: 16px 24px;
                border-bottom: 1px solid var(--border);
                box-shadow: var(--shadow);
                display: none;
                z-index: 99;
            }

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

            .nav-links li a {
                padding: 12px 16px;
                border-radius: 10px;
            }

            .nav-right .search-box {
                display: none;
            }

            .nav-right .btn {
                font-size: 13px;
                padding: 9px 18px;
            }

            .page-banner {
                padding: 80px 0 80px;
            }

            .page-banner h1 {
                font-size: 32px;
            }

            .breadcrumb {
                display: none;
            }

            .news-item {
                grid-template-columns: 1fr;
            }

            .news-thumb {
                height: 180px;
            }

            .news-item.featured .news-thumb {
                height: 200px;
            }

            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 16px;
            }

            .faq-grid {
                grid-template-columns: 1fr;
            }

            .subscribe-box {
                padding: 40px 24px;
            }

            .subscribe-form {
                flex-direction: column;
            }

            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }

            .footer-brand {
                grid-column: span 2;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding: 0 16px;
            }

            .section {
                padding: 54px 0;
            }

            .section-head {
                flex-direction: column;
                align-items: flex-start;
            }

            .page-banner h1 {
                font-size: 27px;
            }

            .topics-grid {
                grid-template-columns: 1fr;
            }

            .stats-grid {
                grid-template-columns: 1fr 1fr;
                gap: 12px;
            }

            .stat-num {
                font-size: 30px;
            }

            .stat-item {
                padding: 20px 12px;
            }

            .footer-grid {
                grid-template-columns: 1fr;
                gap: 28px;
            }

            .footer-brand {
                grid-column: span 1;
            }

            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }

            .news-item {
                padding: 12px;
            }

            .news-thumb {
                height: 160px;
            }

            .nav-right .btn {
                padding: 8px 14px;
                font-size: 12px;
            }
        }

/* roulang page: article */
:root {
  --primary: #14213d;
  --primary-soft: #1f3a68;
  --accent: #d4552a;
  --accent-soft: #fbeae3;
  --bg: #f4f6f9;
  --surface: #ffffff;
  --border: #e3e8ef;
  --text: #1d2733;
  --text-muted: #5f7080;
  --radius: 14px;
  --radius-sm: 8px;
  --shadow: 0 6px 24px rgba(20, 33, 61, .07);
  --shadow-lg: 0 14px 40px rgba(20, 33, 61, .10);
  --container: 1200px;
  --header-h: 72px;
}
* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body { font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif; background: var(--bg); color: var(--text); line-height: 1.6; -webkit-font-smoothing: antialiased; }
img { max-width: 100%; display: block; }
a { color: inherit; }
button, input { font: inherit; }
a:focus-visible, button:focus-visible, input:focus-visible { outline: 3px solid rgba(212, 85, 42, .45); outline-offset: 2px; }
.container { width: 100%; max-width: var(--container); margin: 0 auto; padding: 0 24px; }

/* ===== Header / Nav ===== */
.site-header { position: sticky; top: 0; z-index: 100; background: rgba(255,255,255,.96); backdrop-filter: blur(10px); border-bottom: 1px solid var(--border); box-shadow: 0 2px 12px rgba(20,33,61,.05); }
.nav-wrap { display: flex; align-items: center; min-height: var(--header-h); gap: 32px; }
.logo { display: inline-flex; align-items: center; gap: 10px; font-weight: 800; font-size: 22px; color: var(--primary); text-decoration: none; letter-spacing: -0.3px; }
.logo-icon { width: 38px; height: 38px; border-radius: 10px; background: var(--primary); color: #fff; display: inline-grid; place-items: center; font-size: 18px; flex-shrink: 0; }
.main-nav { flex: 1; }
.nav-links { display: flex; gap: 28px; list-style: none; margin: 0; padding: 0; }
.nav-links a { color: var(--text); text-decoration: none; font-weight: 600; font-size: 15px; padding: 8px 0; border-bottom: 2px solid transparent; transition: color .2s ease, border-color .2s ease; }
.nav-links a:hover { color: var(--accent); }
.nav-links a.active { color: var(--accent); border-bottom-color: var(--accent); }
.menu-toggle { display: none; background: #fff; border: 1px solid var(--border); width: 40px; height: 40px; border-radius: 10px; color: var(--primary); font-size: 18px; cursor: pointer; align-items: center; justify-content: center; transition: background .2s, border-color .2s; }
.menu-toggle:hover { background: var(--bg); border-color: var(--primary); }
.nav-right { display: flex; align-items: center; gap: 16px; }
.search-box { display: flex; align-items: center; gap: 8px; background: var(--bg); border: 1px solid var(--border); border-radius: 999px; padding: 8px 8px 8px 16px; width: 220px; transition: border-color .2s, box-shadow .2s; }
.search-box:focus-within { border-color: var(--primary); box-shadow: 0 0 0 3px rgba(20,33,61,.08); background: #fff; }
.search-box input { border: none; background: none; outline: none; font-size: 14px; width: 100%; color: var(--text); }
.search-btn { background: var(--primary); color: #fff; border: none; width: 30px; height: 30px; border-radius: 50%; flex-shrink: 0; cursor: pointer; display: inline-flex; align-items: center; justify-content: center; transition: background .2s, transform .2s; }
.search-btn:hover { background: var(--accent); transform: scale(1.08); }
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; padding: 12px 22px; border-radius: 999px; font-weight: 700; font-size: 15px; text-decoration: none; border: 1px solid transparent; transition: all .25s ease; cursor: pointer; }
.btn-primary { background: var(--accent); color: #fff; box-shadow: 0 6px 16px rgba(212,85,42,.25); }
.btn-primary:hover { background: #b9451f; transform: translateY(-2px); box-shadow: 0 12px 24px rgba(212,85,42,.32); }
.btn-block { width: 100%; }

/* ===== Article Hero ===== */
.article-hero { position: relative; background: linear-gradient(135deg, rgba(16,27,51,.94) 0%, rgba(24,55,92,.82) 100%), url('/assets/images/backpic/back-2.png') center/cover no-repeat; padding: 56px 0 96px; color: #fff; }
.breadcrumb { display: flex; flex-wrap: wrap; align-items: center; gap: 10px; font-size: 13px; letter-spacing: .2px; margin-bottom: 20px; }
.breadcrumb a { color: rgba(255,255,255,.72); text-decoration: none; transition: color .2s; }
.breadcrumb a:hover { color: #fff; }
.breadcrumb i { font-size: 10px; opacity: .6; }
.breadcrumb .current { color: rgba(255,255,255,.95); }
.article-hero-content { max-width: 860px; }
.hero-badge { display: inline-flex; align-items: center; gap: 8px; background: rgba(212,85,42,.18); border: 1px solid rgba(255,255,255,.18); color: #fff; font-size: 13px; font-weight: 600; padding: 6px 16px; border-radius: 999px; margin-bottom: 18px; backdrop-filter: blur(4px); }
.article-hero h1 { font-size: 38px; line-height: 1.35; font-weight: 800; margin-bottom: 14px; letter-spacing: -0.5px; }
.article-desc { font-size: 16px; line-height: 1.8; color: rgba(255,255,255,.78); max-width: 720px; }
.article-meta { display: flex; flex-wrap: wrap; gap: 22px; margin-top: 22px; color: rgba(255,255,255,.68); font-size: 14px; }
.article-meta span { display: inline-flex; align-items: center; gap: 7px; }
.article-meta i { font-size: 13px; }

/* ===== Article Layout ===== */
.article-section { padding-bottom: 80px; }
.article-layout { display: grid; grid-template-columns: minmax(0, 1fr) 340px; gap: 40px; margin-top: -56px; position: relative; z-index: 2; align-items: start; }
.article-main { background: var(--surface); border-radius: var(--radius); box-shadow: var(--shadow); padding: 40px; }
.article-cover { width: 100%; height: 360px; object-fit: cover; border-radius: 12px; margin-bottom: 28px; }
.article-content { font-size: 16.5px; line-height: 2; color: #2a3644; }
.article-content h2 { font-size: 26px; margin: 32px 0 16px; color: var(--primary); letter-spacing: -0.2px; }
.article-content h3 { font-size: 21px; margin: 26px 0 14px; color: var(--primary-soft); }
.article-content p { margin-bottom: 18px; }
.article-content ul, .article-content ol { margin: 0 0 20px; padding-left: 24px; }
.article-content li { margin-bottom: 8px; }
.article-content blockquote { border-left: 4px solid var(--accent); background: var(--accent-soft); padding: 14px 22px; border-radius: 0 10px 10px 0; margin: 24px 0; color: #4a3040; }
.article-content blockquote p:last-child { margin-bottom: 0; }
.article-content img { border-radius: 12px; margin: 24px 0; }
.article-content a { color: var(--accent); text-decoration: underline; text-underline-offset: 3px; }
.article-content table { width: 100%; border-collapse: collapse; margin: 24px 0; font-size: 14px; }
.article-content table th, .article-content table td { border: 1px solid var(--border); padding: 10px 14px; text-align: left; }
.article-content table th { background: #f1f4f8; font-weight: 600; }

.article-tags { display: flex; flex-wrap: wrap; align-items: center; gap: 10px; padding-top: 28px; margin-top: 36px; border-top: 1px solid var(--border); }
.tags-title { font-weight: 700; color: var(--primary); margin-right: 6px; font-size: 14px; }
.tags-title i { color: var(--accent); margin-right: 4px; }
.tag { background: #f1f4f8; color: var(--primary-soft); font-size: 13px; padding: 6px 16px; border-radius: 999px; text-decoration: none; transition: all .25s; border: 1px solid transparent; }
.tag:hover { background: var(--primary); color: #fff; transform: translateY(-1px); }

.post-nav { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; margin-top: 30px; }
.post-nav-link { display: flex; flex-direction: column; gap: 8px; background: var(--bg); border: 1px solid var(--border); border-radius: 14px; padding: 18px 22px; text-decoration: none; transition: all .25s; }
.post-nav-link:hover { border-color: var(--primary); box-shadow: var(--shadow); transform: translateY(-2px); }
.post-nav-link.next { text-align: right; align-items: flex-end; }
.nav-label { font-size: 12px; color: var(--text-muted); font-weight: 600; display: inline-flex; align-items: center; gap: 8px; }
.nav-title { font-size: 15px; font-weight: 700; color: var(--primary); }
.post-nav-link.disabled { opacity: .45; pointer-events: none; background: #f8f9fb; }

.not-found { text-align: center; padding: 60px 20px; }
.not-found-icon { font-size: 54px; color: #b9c3d0; margin-bottom: 18px; }
.not-found h2 { font-size: 28px; color: var(--primary); margin-bottom: 10px; }
.not-found p { color: var(--text-muted); margin-bottom: 28px; }

/* ===== Sidebar ===== */
.article-sidebar { display: flex; flex-direction: column; gap: 24px; }
.sidebar-card { background: #fff; border: 1px solid var(--border); border-radius: var(--radius); padding: 24px; box-shadow: 0 4px 16px rgba(20,33,61,.04); }
.sidebar-card h3 { font-size: 16px; font-weight: 800; color: var(--primary); margin-bottom: 18px; display: flex; align-items: center; gap: 10px; }
.sidebar-card h3 i { color: var(--accent); }
.sidebar-channels { display: flex; flex-direction: column; gap: 10px; }
.channel-link { display: flex; align-items: center; gap: 12px; padding: 12px 14px; background: #f5f7fa; border-radius: 12px; text-decoration: none; transition: all .25s; border: 1px solid transparent; }
.channel-link:hover { background: #fff; border-color: var(--border); box-shadow: var(--shadow); transform: translateX(3px); }
.channel-icon { width: 38px; height: 38px; flex-shrink: 0; border-radius: 10px; background: var(--primary); color: #fff; display: inline-flex; align-items: center; justify-content: center; font-size: 15px; }
.channel-link strong { display: block; font-size: 14px; color: var(--text); }
.channel-link small { font-size: 12px; color: var(--text-muted); }
.sidebar-list { list-style: none; margin: 0; padding: 0; }
.sidebar-list li + li { border-top: 1px dashed var(--border); }
.sidebar-list a { display: block; padding: 11px 4px; color: var(--text); text-decoration: none; font-size: 14px; line-height: 1.6; transition: all .2s; }
.sidebar-list a:hover { color: var(--accent); padding-left: 10px; }
.sidebar-cta { background: linear-gradient(135deg, var(--primary), #24477e); color: #fff; border: none; }
.sidebar-cta h3, .sidebar-cta p { color: #fff; }
.sidebar-cta h3 i { color: #f0b95c; }
.sidebar-cta p { font-size: 13px; color: rgba(255,255,255,.8); margin-bottom: 18px; }

/* ===== CTA Section ===== */
.cta-section { padding: 72px 0; background: var(--primary); position: relative; overflow: hidden; }
.cta-section::before { content: ''; position: absolute; inset: 0; background: url('/assets/images/backpic/back-3.png') center/cover no-repeat; opacity: .15; }
.cta-inner { position: relative; display: flex; align-items: center; justify-content: space-between; gap: 40px; flex-wrap: wrap; }
.cta-text h2 { font-size: 30px; color: #fff; margin-bottom: 10px; letter-spacing: -0.3px; }
.cta-text p { color: rgba(255,255,255,.75); max-width: 620px; font-size: 15px; }
.btn-light { background: #fff; color: var(--primary); }
.btn-light:hover { background: #fff; transform: translateY(-2px); box-shadow: 0 12px 24px rgba(0,0,0,.18); }

/* ===== Footer ===== */
.site-footer { background: #0b1530; color: #cbd5e1; padding: 64px 0 28px; }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 40px; margin-bottom: 48px; }
.footer-brand .logo { color: #fff; margin-bottom: 16px; }
.footer-brand .logo-icon { background: var(--accent); }
.footer-brand p { font-size: 14px; line-height: 1.8; color: rgba(255,255,255,.65); max-width: 300px; }
.footer-col h4 { color: #fff; font-size: 15px; margin-bottom: 16px; font-weight: 700; }
.footer-col a { display: block; padding: 7px 0; color: rgba(255,255,255,.62); text-decoration: none; font-size: 14px; transition: all .25s; }
.footer-col a:hover { color: #fff; padding-left: 4px; }
.footer-bottom { border-top: 1px solid rgba(255,255,255,.1); padding-top: 22px; display: flex; align-items: center; justify-content: space-between; gap: 16px; flex-wrap: wrap; font-size: 13px; color: rgba(255,255,255,.45); }
.legal-links { display: flex; gap: 20px; }
.legal-links a { color: rgba(255,255,255,.5); text-decoration: none; transition: color .2s; }
.legal-links a:hover { color: #fff; }

/* ===== Responsive ===== */
@media (max-width: 1024px) {
  .nav-wrap { gap: 20px; }
  .search-box { width: 180px; }
  .article-layout { grid-template-columns: 1fr; margin-top: -40px; }
  .article-sidebar { display: grid; grid-template-columns: 1fr 1fr; align-items: start; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 900px) {
  .nav-wrap { height: auto; flex-wrap: wrap; padding: 14px 0; row-gap: 10px; }
  .menu-toggle { display: inline-flex; }
  .nav-links { display: none; width: 100%; flex-direction: column; gap: 0; background: #fff; border: 1px solid var(--border); border-radius: 14px; padding: 12px; box-shadow: var(--shadow-lg); }
  .nav-links.open { display: flex; }
  .nav-links li + li { border-top: 1px solid #f1f4f8; }
  .nav-links a { display: block; padding: 12px 16px; border-bottom: none; border-radius: 10px; }
  .nav-links a:hover { background: var(--bg); }
  .nav-links a.active { border-bottom: none; background: var(--accent-soft); color: var(--accent); }
  .search-box { display: none; }
}
@media (max-width: 768px) {
  .article-hero { padding: 40px 0 72px; }
  .article-hero h1 { font-size: 28px; }
  .article-desc { font-size: 15px; }
  .article-layout { margin-top: -32px; gap: 28px; }
  .article-main { padding: 24px; }
  .article-cover { height: 220px; }
  .article-sidebar { grid-template-columns: 1fr; }
  .post-nav { grid-template-columns: 1fr; }
  .cta-section { padding: 52px 0; }
  .cta-text h2 { font-size: 24px; }
  .footer-grid { grid-template-columns: 1fr; }
  .footer-bottom { flex-direction: column; text-align: center; }
}
@media (max-width: 520px) {
  .container { padding: 0 16px; }
  .article-main { padding: 18px; }
  .article-cover { height: 180px; border-radius: 10px; }
  .article-content { font-size: 15.5px; }
  .article-meta { gap: 14px; }
  .article-hero h1 { font-size: 24px; }
  .hero-badge { font-size: 12px; }
  .breadcrumb { font-size: 12px; }
  .post-nav-link { padding: 14px 16px; }
  .logo { font-size: 19px; }
  .logo-icon { width: 34px; height: 34px; font-size: 16px; }
}

/* roulang page: category2 */
/* ========== 设计变量 ========== */
        :root {
            --primary: #0b5cf5;
            --primary-dark: #0a3fa8;
            --primary-light: #eaf1ff;
            --accent: #f59e0b;
            --accent-soft: #fff4df;
            --bg: #f4f6fa;
            --surface: #ffffff;
            --text: #0f172a;
            --text-soft: #44546a;
            --text-muted: #7c8ba0;
            --border: #e2e8f0;
            --radius: 16px;
            --radius-sm: 10px;
            --radius-xs: 6px;
            --shadow-sm: 0 2px 10px rgba(15, 23, 42, .05);
            --shadow-md: 0 12px 32px rgba(15, 23, 42, .08);
            --shadow-lg: 0 24px 60px rgba(15, 23, 42, .12);
            --container: 1200px;
            --transition: .25s ease;
        }

        /* ========== 基础重置 ========== */
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", system-ui, -apple-system, sans-serif;
            background: var(--bg);
            color: var(--text);
            line-height: 1.7;
            font-size: 15px;
            -webkit-font-smoothing: antialiased;
        }

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

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

        button {
            font-family: inherit;
            cursor: pointer;
            border: none;
            background: none;
        }

        input {
            font-family: inherit;
            border: none;
            outline: none;
        }

        .container {
            max-width: var(--container);
            margin: 0 auto;
            padding: 0 28px;
        }

        /* ========== 通用按钮与标签 ========== */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 11px 22px;
            border-radius: 999px;
            font-size: 14px;
            font-weight: 600;
            line-height: 1.4;
            transition: all var(--transition);
            border: 1px solid transparent;
            white-space: nowrap;
        }

        .btn-primary {
            background: var(--primary);
            color: #fff;
            box-shadow: 0 6px 18px rgba(11, 92, 245, .28);
        }

        .btn-primary:hover {
            background: var(--primary-dark);
            transform: translateY(-2px);
            box-shadow: 0 10px 26px rgba(11, 92, 245, .34);
        }

        .btn-primary:focus-visible {
            outline: 3px solid rgba(11, 92, 245, .35);
            outline-offset: 2px;
        }

        .btn-outline {
            border-color: #fff;
            color: #fff;
            background: transparent;
        }

        .btn-outline:hover {
            background: rgba(255, 255, 255, .14);
            border-color: #fff;
            transform: translateY(-2px);
        }

        .btn-ghost {
            background: var(--surface);
            color: var(--text);
            border-color: var(--border);
        }

        .btn-ghost:hover {
            border-color: var(--primary);
            color: var(--primary);
            transform: translateY(-2px);
            box-shadow: var(--shadow-sm);
        }

        .badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 4px 12px;
            border-radius: 999px;
            font-size: 12px;
            font-weight: 600;
            line-height: 1.6;
            background: var(--primary-light);
            color: var(--primary);
        }

        .badge-accent {
            background: var(--accent-soft);
            color: #b45309;
        }

        .badge-dark {
            background: rgba(255, 255, 255, .14);
            color: #fff;
            border: 1px solid rgba(255, 255, 255, .25);
        }

        .section {
            padding: 80px 0;
        }

        .section-head {
            display: flex;
            align-items: flex-end;
            justify-content: space-between;
            gap: 20px;
            margin-bottom: 36px;
            flex-wrap: wrap;
        }

        .section-title {
            font-size: 30px;
            line-height: 1.3;
            font-weight: 700;
            letter-spacing: -.01em;
        }

        .section-subtitle {
            color: var(--text-soft);
            font-size: 15px;
            max-width: 560px;
            margin-top: 8px;
        }

        .section-more {
            color: var(--primary);
            font-size: 14px;
            font-weight: 600;
            display: inline-flex;
            align-items: center;
            gap: 6px;
            transition: gap var(--transition);
        }

        .section-more:hover {
            gap: 10px;
        }

        /* ========== Header / 导航 ========== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(255, 255, 255, .92);
            backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border);
            box-shadow: 0 1px 6px rgba(15, 23, 42, .03);
        }

        .nav-wrap {
            display: flex;
            align-items: center;
            justify-content: space-between;
            min-height: 68px;
            gap: 22px;
        }

        .logo {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            font-size: 20px;
            font-weight: 700;
            color: var(--text);
            flex-shrink: 0;
        }

        .logo-icon {
            width: 36px;
            height: 36px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            border-radius: 10px;
            background: var(--primary);
            color: #fff;
            font-size: 18px;
            font-weight: 700;
            box-shadow: 0 6px 16px rgba(11, 92, 245, .3);
        }

        .main-nav {
            flex: 1;
            display: flex;
            justify-content: center;
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 4px;
            list-style: none;
        }

        .nav-links a {
            display: inline-block;
            padding: 9px 16px;
            font-size: 14px;
            font-weight: 500;
            color: var(--text-soft);
            border-radius: 999px;
            transition: all var(--transition);
        }

        .nav-links a:hover {
            color: var(--primary);
            background: var(--primary-light);
        }

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

        .menu-toggle {
            display: none;
            width: 40px;
            height: 40px;
            align-items: center;
            justify-content: center;
            border-radius: 10px;
            color: var(--text);
            font-size: 18px;
            border: 1px solid var(--border);
            background: var(--surface);
        }

        .nav-right {
            display: flex;
            align-items: center;
            gap: 14px;
            flex-shrink: 0;
        }

        .search-box {
            display: flex;
            align-items: center;
            gap: 8px;
            width: 188px;
            padding: 8px 10px 8px 14px;
            background: var(--bg);
            border: 1px solid var(--border);
            border-radius: 999px;
            transition: all var(--transition);
        }

        .search-box:focus-within {
            border-color: var(--primary);
            background: #fff;
            box-shadow: 0 0 0 4px rgba(11, 92, 245, .08);
        }

        .search-box input {
            flex: 1;
            min-width: 0;
            background: transparent;
            font-size: 13px;
            color: var(--text);
        }

        .search-box input::placeholder {
            color: var(--text-muted);
        }

        .search-btn {
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background: var(--primary);
            color: #fff;
            font-size: 12px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            transition: background var(--transition);
        }

        .search-btn:hover {
            background: var(--primary-dark);
        }

        /* ========== 页面 Banner ========== */
        .page-banner {
            position: relative;
            background:
                linear-gradient(100deg, rgba(7, 20, 47, .92) 0%, rgba(10, 45, 92, .78) 55%, rgba(11, 92, 245, .55) 100%),
                url("/assets/images/backpic/back-2.png") center / cover no-repeat;
            padding: 92px 0 76px;
            color: #fff;
        }

        .page-banner .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            color: rgba(255, 255, 255, .7);
            margin-bottom: 22px;
        }

        .page-banner .breadcrumb a {
            color: rgba(255, 255, 255, .9);
        }

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

        .banner-h1 {
            font-size: 42px;
            line-height: 1.25;
            font-weight: 800;
            max-width: 760px;
            letter-spacing: -.02em;
            margin-bottom: 18px;
        }

        .banner-desc {
            font-size: 16px;
            color: rgba(255, 255, 255, .86);
            max-width: 640px;
            margin-bottom: 30px;
        }

        .banner-actions {
            display: flex;
            align-items: center;
            gap: 14px;
            flex-wrap: wrap;
        }

        .banner-meta {
            margin-top: 38px;
            display: flex;
            gap: 12px;
            flex-wrap: wrap;
        }

        /* ========== 快讯条 ========== */
        .quick-news {
            background: #0b1220;
            color: #fff;
            border-bottom: 1px solid rgba(255, 255, 255, .06);
        }

        .ticker-wrap {
            display: flex;
            align-items: stretch;
            gap: 24px;
            overflow: hidden;
            padding: 12px 0;
        }

        .ticker-label {
            flex-shrink: 0;
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            font-weight: 700;
            background: var(--accent);
            color: #0b1220;
            padding: 3px 12px;
            border-radius: 999px;
        }

        .ticker-list {
            display: flex;
            align-items: center;
            gap: 30px;
            white-space: nowrap;
            overflow: hidden;
            flex: 1;
            font-size: 13px;
            color: rgba(255, 255, 255, .8);
        }

        .ticker-list span {
            color: #7cc0ff;
            font-weight: 600;
            margin-right: 6px;
        }

        /* ========== 功能总览 ========== */
        .overview-cards {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

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

        .feature-card:hover {
            transform: translateY(-5px);
            box-shadow: var(--shadow-md);
            border-color: rgba(11, 92, 245, .3);
        }

        .feature-card .cover {
            height: 180px;
            position: relative;
            overflow: hidden;
        }

        .feature-card .cover img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform .5s ease;
        }

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

        .feature-card .cover::after {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(7, 20, 47, 0) 40%, rgba(7, 20, 47, .35));
        }

        .feature-card .icon-badge {
            position: absolute;
            left: 18px;
            bottom: 16px;
            z-index: 2;
            width: 42px;
            height: 42px;
            border-radius: 12px;
            background: #fff;
            color: var(--primary);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            box-shadow: 0 8px 20px rgba(15, 23, 42, .18);
        }

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

        .feature-card .body h3 {
            font-size: 18px;
            font-weight: 700;
            margin-bottom: 8px;
        }

        .feature-card .body p {
            font-size: 14px;
            color: var(--text-soft);
            flex: 1;
            margin-bottom: 16px;
        }

        .feature-card .card-link {
            font-size: 13px;
            font-weight: 600;
            color: var(--primary);
            display: inline-flex;
            align-items: center;
            gap: 6px;
            transition: gap var(--transition);
        }

        .feature-card .card-link:hover {
            gap: 10px;
        }

        /* ========== 详细指南区域 ========== */
        .guide-layout {
            display: grid;
            grid-template-columns: minmax(0, 1.9fr) minmax(0, 1fr);
            gap: 32px;
            align-items: start;
        }

        .guide-main {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 26px;
            box-shadow: var(--shadow-sm);
        }

        .guide-list {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 0;
        }

        .guide-item {
            display: flex;
            gap: 18px;
            padding: 20px 0;
            border-bottom: 1px solid var(--border);
            transition: background var(--transition);
        }

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

        .guide-item:hover {
            background: #fafbff;
        }

        .guide-item .guide-num {
            width: 42px;
            height: 42px;
            flex-shrink: 0;
            border-radius: 12px;
            background: var(--primary-light);
            color: var(--primary);
            font-size: 16px;
            font-weight: 700;
            display: inline-flex;
            align-items: center;
            justify-content: center;
        }

        .guide-item .guide-content {
            flex: 1;
        }

        .guide-item .guide-content h3 {
            font-size: 17px;
            font-weight: 700;
            margin-bottom: 5px;
        }

        .guide-item .guide-content p {
            font-size: 14px;
            color: var(--text-soft);
            margin-bottom: 10px;
        }

        .guide-tags {
            display: flex;
            gap: 6px;
            flex-wrap: wrap;
        }

        .guide-tags a {
            font-size: 12px;
            color: var(--text-muted);
            background: var(--bg);
            border: 1px solid var(--border);
            padding: 3px 10px;
            border-radius: 999px;
            transition: all var(--transition);
        }

        .guide-tags a:hover {
            color: var(--primary);
            border-color: var(--primary);
            background: var(--primary-light);
        }

        .guide-side {
            display: flex;
            flex-direction: column;
            gap: 20px;
        }

        .side-card {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 24px;
            box-shadow: var(--shadow-sm);
        }

        .side-card h4 {
            font-size: 16px;
            font-weight: 700;
            margin-bottom: 16px;
            padding-bottom: 10px;
            border-bottom: 2px solid var(--primary);
        }

        .tag-cloud {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
        }

        .tag-cloud a {
            font-size: 13px;
            color: var(--text-soft);
            background: var(--bg);
            border: 1px solid var(--border);
            padding: 5px 14px;
            border-radius: 999px;
            transition: all var(--transition);
        }

        .tag-cloud a:hover {
            background: var(--primary);
            color: #fff;
            border-color: var(--primary);
            transform: translateY(-1px);
        }

        .side-link-list {
            display: flex;
            flex-direction: column;
            gap: 4px;
        }

        .side-link-list a {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 8px 4px;
            font-size: 14px;
            color: var(--text-soft);
            border-bottom: 1px dashed var(--border);
            transition: all var(--transition);
        }

        .side-link-list a:hover {
            color: var(--primary);
            padding-left: 8px;
        }

        .side-link-list a:last-child {
            border-bottom: none;
        }

        .side-link-list i {
            color: var(--primary);
            font-size: 13px;
        }

        .mini-cover-card {
            display: flex;
            gap: 14px;
            align-items: center;
            padding: 12px 0;
            border-bottom: 1px solid var(--border);
        }

        .mini-cover-card:last-child {
            border-bottom: none;
            padding-bottom: 0;
        }

        .mini-cover-card img {
            width: 70px;
            height: 56px;
            border-radius: 10px;
            flex-shrink: 0;
            object-fit: cover;
        }

        .mini-cover-card h5 {
            font-size: 14px;
            font-weight: 600;
            line-height: 1.45;
        }

        .mini-cover-card span {
            font-size: 12px;
            color: var(--text-muted);
        }

        /* ========== 流程步骤 ========== */
        .steps-section {
            background: var(--surface);
            border-top: 1px solid var(--border);
            border-bottom: 1px solid var(--border);
        }

        .steps-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 28px;
            counter-reset: step;
        }

        .step-card {
            position: relative;
            padding: 26px;
            border: 1px solid var(--border);
            border-radius: var(--radius);
            background: var(--bg);
            transition: all var(--transition);
        }

        .step-card:hover {
            background: var(--surface);
            border-color: var(--primary);
            box-shadow: var(--shadow-md);
            transform: translateY(-4px);
        }

        .step-card .step-num {
            width: 44px;
            height: 44px;
            border-radius: 50%;
            background: var(--primary);
            color: #fff;
            font-size: 17px;
            font-weight: 700;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 16px;
            box-shadow: 0 8px 18px rgba(11, 92, 245, .26);
        }

        .step-card h3 {
            font-size: 16px;
            font-weight: 700;
            margin-bottom: 8px;
        }

        .step-card p {
            font-size: 14px;
            color: var(--text-soft);
        }

        /* ========== 排行列表 ========== */
        .ranking-section {
            background: #0b1220;
            color: #fff;
        }

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

        .ranking-section .section-subtitle {
            color: rgba(255, 255, 255, .7);
        }

        .ranking-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
            margin-top: 8px;
        }

        .rank-item {
            display: flex;
            align-items: center;
            gap: 18px;
            background: rgba(255, 255, 255, .06);
            border: 1px solid rgba(255, 255, 255, .08);
            border-radius: 14px;
            padding: 16px 20px;
            transition: all var(--transition);
        }

        .rank-item:hover {
            background: rgba(255, 255, 255, .1);
            transform: translateX(4px);
            border-color: rgba(255, 255, 255, .18);
        }

        .rank-num {
            width: 36px;
            height: 36px;
            border-radius: 10px;
            background: var(--primary);
            color: #fff;
            font-weight: 700;
            font-size: 15px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
        }

        .rank-item:nth-child(1) .rank-num {
            background: var(--accent);
        }

        .rank-item:nth-child(2) .rank-num {
            background: #64748b;
        }

        .rank-item:nth-child(3) .rank-num {
            background: #b45309;
        }

        .rank-info {
            flex: 1;
            min-width: 0;
        }

        .rank-info h4 {
            font-size: 16px;
            font-weight: 600;
            margin-bottom: 4px;
        }

        .rank-info .rank-data {
            font-size: 13px;
            color: rgba(255, 255, 255, .65);
        }

        .rank-bar {
            width: 180px;
            height: 6px;
            background: rgba(255, 255, 255, .12);
            border-radius: 999px;
            overflow: hidden;
            flex-shrink: 0;
        }

        .rank-bar span {
            display: block;
            height: 100%;
            border-radius: 999px;
            background: linear-gradient(90deg, var(--primary), #60a5fa);
        }

        .rank-tag {
            font-size: 12px;
            padding: 4px 10px;
            border-radius: 999px;
            background: rgba(255, 255, 255, .1);
            color: rgba(255, 255, 255, .8);
            flex-shrink: 0;
        }

        /* ========== FAQ ========== */
        .faq-wrap {
            max-width: 860px;
            margin: 0 auto;
        }

        details.faq-item {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: 14px;
            margin-bottom: 14px;
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: all var(--transition);
        }

        details.faq-item:hover {
            border-color: rgba(11, 92, 245, .3);
        }

        details.faq-item[open] {
            border-color: var(--primary);
            box-shadow: var(--shadow-md);
        }

        details.faq-item summary {
            cursor: pointer;
            padding: 18px 22px;
            font-size: 15px;
            font-weight: 600;
            list-style: none;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
        }

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

        details.faq-item summary .faq-icon {
            width: 30px;
            height: 30px;
            border-radius: 50%;
            background: var(--primary-light);
            color: var(--primary);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 14px;
            flex-shrink: 0;
            transition: transform var(--transition);
        }

        details.faq-item[open] summary .faq-icon {
            transform: rotate(45deg);
        }

        details.faq-item .faq-answer {
            padding: 0 22px 20px;
            font-size: 14px;
            color: var(--text-soft);
            border-top: 1px solid var(--border);
            margin: 0 22px;
            padding-top: 16px;
            padding-left: 0;
            padding-right: 0;
        }

        /* ========== CTA ========== */
        .cta-section {
            position: relative;
            background:
                linear-gradient(120deg, rgba(7, 20, 47, .94), rgba(11, 92, 245, .82)),
                url("/assets/images/backpic/back-3.png") center / cover no-repeat;
            padding: 90px 0;
            text-align: center;
            color: #fff;
        }

        .cta-section h2 {
            font-size: 34px;
            font-weight: 800;
            margin-bottom: 14px;
            letter-spacing: -.01em;
        }

        .cta-section p {
            font-size: 16px;
            color: rgba(255, 255, 255, .85);
            max-width: 560px;
            margin: 0 auto 30px;
        }

        /* ========== 页脚 ========== */
        .site-footer {
            background: #0b1220;
            color: rgba(255, 255, 255, .75);
            padding: 70px 0 0;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.6fr 1fr 1fr 1fr;
            gap: 40px;
            padding-bottom: 48px;
            border-bottom: 1px solid rgba(255, 255, 255, .08);
        }

        .footer-brand .logo {
            color: #fff;
            margin-bottom: 16px;
        }

        .footer-brand .logo-icon {
            background: var(--primary);
        }

        .footer-brand p {
            font-size: 14px;
            color: rgba(255, 255, 255, .6);
            max-width: 300px;
            line-height: 1.8;
        }

        .footer-col h4 {
            font-size: 15px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 18px;
        }

        .footer-col a {
            display: block;
            font-size: 14px;
            color: rgba(255, 255, 255, .65);
            padding: 6px 0;
            transition: all var(--transition);
        }

        .footer-col a:hover {
            color: #fff;
            padding-left: 6px;
        }

        .footer-bottom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding: 22px 0;
            flex-wrap: wrap;
            font-size: 13px;
            color: rgba(255, 255, 255, .5);
        }

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

        .legal-links a {
            color: rgba(255, 255, 255, .5);
            transition: color var(--transition);
        }

        .legal-links a:hover {
            color: #fff;
        }

        /* ========== 响应式 ========== */
        @media (max-width: 1024px) {
            .container {
                padding: 0 22px;
            }

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

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

            .guide-layout {
                grid-template-columns: 1fr;
            }

            .search-box {
                width: 150px;
            }

            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 32px;
            }
        }

        @media (max-width: 768px) {
            .nav-wrap {
                gap: 12px;
            }

            .main-nav {
                order: 3;
            }

            .menu-toggle {
                display: inline-flex;
            }

            .nav-links {
                position: absolute;
                top: 68px;
                left: 0;
                right: 0;
                flex-direction: column;
                align-items: stretch;
                background: #fff;
                border-bottom: 1px solid var(--border);
                box-shadow: var(--shadow-md);
                padding: 12px 20px 18px;
                display: none;
                z-index: 99;
            }

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

            .nav-links a {
                display: block;
                padding: 12px 14px;
                border-radius: 10px;
                font-size: 15px;
            }

            .nav-right .search-box {
                display: none;
            }

            .nav-right .btn {
                padding: 9px 16px;
                font-size: 13px;
            }

            .banner-h1 {
                font-size: 30px;
            }

            .page-banner {
                padding: 70px 0 60px;
            }

            .section {
                padding: 60px 0;
            }

            .section-title {
                font-size: 24px;
            }

            .rank-bar {
                display: none;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding: 0 18px;
            }

            .logo {
                font-size: 17px;
            }

            .logo-icon {
                width: 32px;
                height: 32px;
                font-size: 15px;
            }

            .nav-right .btn {
                padding: 8px 12px;
                font-size: 12px;
            }

            .page-banner {
                padding: 58px 0 48px;
            }

            .banner-h1 {
                font-size: 26px;
            }

            .banner-desc {
                font-size: 14px;
            }

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

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

            .guide-main {
                padding: 18px;
            }

            .guide-item {
                flex-direction: column;
                gap: 12px;
            }

            .footer-grid {
                grid-template-columns: 1fr;
                gap: 28px;
            }

            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }

            .rank-item {
                flex-wrap: wrap;
                gap: 12px;
            }

            .rank-tag {
                margin-left: 54px;
            }

            .cta-section {
                padding: 60px 0;
            }

            .cta-section h2 {
                font-size: 26px;
            }
        }

/* roulang page: category3 */
/* ============ 设计变量 ============ */
        :root {
            --primary: #1f4e8c;
            --primary-dark: #163a66;
            --primary-deep: #101f33;
            --primary-light: #eaf1fa;
            --accent: #e8542f;
            --accent-dark: #c9401f;
            --accent-light: #fdeee8;
            --bg: #f6f8fb;
            --surface: #ffffff;
            --text: #1c2a38;
            --muted: #617282;
            --border: #e3e9f0;
            --radius-sm: 8px;
            --radius: 14px;
            --radius-lg: 20px;
            --shadow-sm: 0 1px 3px rgba(15, 35, 60, .06), 0 1px 2px rgba(15, 35, 60, .04);
            --shadow: 0 6px 24px rgba(15, 35, 60, .08);
            --shadow-lg: 0 18px 44px rgba(15, 35, 60, .14);
            --container: 1200px;
            --space: 72px;
        }

        /* ============ Reset / Base ============ */
        *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
        html { scroll-behavior: smooth; }
        body {
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
            font-size: 16px;
            line-height: 1.65;
            color: var(--text);
            background: var(--surface);
            -webkit-font-smoothing: antialiased;
        }
        img { display: block; max-width: 100%; }
        a { color: inherit; text-decoration: none; }
        button, input, summary { font-family: inherit; }
        ul, ol { list-style: none; }
        a:focus-visible, button:focus-visible, input:focus-visible, summary:focus-visible {
            outline: 3px solid rgba(31, 78, 140, .4);
            outline-offset: 2px;
            border-radius: 4px;
        }

        /* ============ 容器 ============ */
        .container {
            width: min(var(--container), 100% - 48px);
            margin-inline: auto;
        }

        /* ============ 顶部导航 ============ */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(255, 255, 255, .92);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border-bottom: 1px solid var(--border);
        }
        .nav-wrap {
            position: relative;
            display: flex;
            align-items: center;
            gap: 28px;
            height: 72px;
        }
        .logo {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            font-size: 20px;
            font-weight: 800;
            color: var(--text);
            letter-spacing: .01em;
            flex-shrink: 0;
        }
        .logo-icon {
            width: 38px;
            height: 38px;
            border-radius: 11px;
            background: linear-gradient(135deg, var(--primary), #3f7cc2);
            color: #fff;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-weight: 800;
            font-size: 18px;
            box-shadow: 0 4px 12px rgba(31, 78, 140, .25);
        }
        .main-nav { flex: 1; }
        .menu-toggle {
            display: none;
            background: none;
            border: none;
            font-size: 20px;
            color: var(--text);
            cursor: pointer;
            width: 40px;
            height: 40px;
            border-radius: 10px;
            transition: background .2s;
        }
        .menu-toggle:hover { background: var(--bg); }
        .nav-links {
            display: flex;
            align-items: center;
            gap: 4px;
        }
        .nav-links a {
            display: inline-block;
            padding: 8px 16px;
            border-radius: 999px;
            font-weight: 600;
            font-size: 15px;
            color: var(--muted);
            transition: all .2s ease;
            white-space: nowrap;
        }
        .nav-links a:hover { color: var(--primary); background: var(--primary-light); }
        .nav-links a.active {
            color: #fff;
            background: var(--primary);
            box-shadow: 0 4px 12px rgba(31, 78, 140, .25);
        }
        .nav-right {
            display: flex;
            align-items: center;
            gap: 14px;
            flex-shrink: 0;
        }
        .search-box {
            display: flex;
            align-items: center;
            gap: 6px;
            width: 210px;
            height: 40px;
            padding: 0 6px 0 14px;
            background: var(--bg);
            border: 1px solid transparent;
            border-radius: 999px;
            transition: border-color .2s, background .2s, box-shadow .2s;
        }
        .search-box:focus-within {
            border-color: var(--primary);
            background: #fff;
            box-shadow: 0 0 0 3px rgba(31, 78, 140, .12);
        }
        .search-box input {
            flex: 1;
            min-width: 0;
            border: none;
            outline: none;
            background: transparent;
            font-size: 14px;
            color: var(--text);
        }
        .search-box input::placeholder { color: #94a3b8; }
        .search-btn {
            width: 30px;
            height: 30px;
            border: none;
            border-radius: 50%;
            background: var(--primary);
            color: #fff;
            font-size: 12px;
            cursor: pointer;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
            transition: background .2s, transform .2s;
        }
        .search-btn:hover { background: var(--primary-dark); transform: scale(1.06); }

        /* ============ 按钮 ============ */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 10px 22px;
            border-radius: 999px;
            font-size: 15px;
            font-weight: 700;
            border: none;
            cursor: pointer;
            white-space: nowrap;
            transition: all .22s ease;
            text-decoration: none;
        }
        .btn i { font-size: 13px; }
        .btn-primary {
            background: var(--primary);
            color: #fff;
            box-shadow: 0 4px 14px rgba(31, 78, 140, .22);
        }
        .btn-primary:hover {
            background: var(--primary-dark);
            transform: translateY(-2px);
            box-shadow: 0 8px 22px rgba(31, 78, 140, .3);
        }
        .btn-outline {
            background: transparent;
            border: 2px solid var(--primary);
            color: var(--primary);
            padding: 8px 20px;
        }
        .btn-outline:hover { background: var(--primary-light); }
        .btn-light {
            background: #fff;
            color: var(--primary-dark);
        }
        .btn-light:hover { background: var(--primary-light); transform: translateY(-2px); }
        .btn-outline-light {
            background: transparent;
            border: 2px solid rgba(255, 255, 255, .7);
            color: #fff;
        }
        .btn-outline-light:hover { background: rgba(255, 255, 255, .14); }
        .btn-ghost {
            background: var(--primary-light);
            color: var(--primary);
        }
        .btn-ghost:hover { background: var(--primary); color: #fff; }

        /* ============ 页面横幅 ============ */
        .page-banner {
            position: relative;
            padding: 76px 0 72px;
            background:
                linear-gradient(118deg, rgba(13, 32, 56, .94), rgba(31, 78, 140, .82) 62%, rgba(64, 124, 194, .7)),
                url('/assets/images/backpic/back-1.png') center / cover;
            color: #fff;
            overflow: hidden;
        }
        .page-banner::after {
            content: '';
            position: absolute;
            right: -120px;
            top: -120px;
            width: 360px;
            height: 360px;
            border-radius: 50%;
            background: rgba(255, 255, 255, .06);
            pointer-events: none;
        }
        .breadcrumb {
            position: relative;
            z-index: 1;
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 14px;
            color: rgba(255, 255, 255, .72);
            margin-bottom: 22px;
        }
        .breadcrumb a { color: rgba(255, 255, 255, .85); transition: color .2s; }
        .breadcrumb a:hover { color: #fff; }
        .breadcrumb .sep { color: rgba(255, 255, 255, .4); }
        .banner-content { position: relative; z-index: 1; max-width: 760px; }
        .banner-content h1 {
            font-size: 44px;
            font-weight: 800;
            line-height: 1.22;
            letter-spacing: .01em;
            margin-bottom: 16px;
        }
        .banner-sub {
            font-size: 17px;
            line-height: 1.8;
            color: rgba(255, 255, 255, .86);
            margin-bottom: 30px;
            max-width: 640px;
        }
        .faq-search {
            display: flex;
            align-items: center;
            gap: 8px;
            max-width: 560px;
            background: #fff;
            border-radius: 999px;
            padding: 6px 6px 6px 20px;
            box-shadow: 0 16px 40px rgba(10, 25, 45, .28);
        }
        .faq-search input {
            flex: 1;
            min-width: 0;
            border: none;
            outline: none;
            font-size: 15px;
            color: var(--text);
            background: transparent;
        }
        .faq-search .search-btn {
            width: 44px;
            height: 44px;
            border-radius: 50%;
            background: var(--primary);
            color: #fff;
            font-size: 15px;
        }
        .faq-search .search-btn:hover { background: var(--accent); transform: scale(1.04); }
        .banner-stats {
            position: relative;
            z-index: 1;
            display: flex;
            flex-wrap: wrap;
            gap: 14px;
            margin-top: 36px;
        }
        .stat-pill {
            background: rgba(255, 255, 255, .12);
            border: 1px solid rgba(255, 255, 255, .18);
            border-radius: 14px;
            padding: 16px 26px;
            backdrop-filter: blur(8px);
            -webkit-backdrop-filter: blur(8px);
        }
        .stat-pill strong { display: block; font-size: 27px; font-weight: 800; line-height: 1.2; }
        .stat-pill span { font-size: 13px; color: rgba(255, 255, 255, .76); }

        /* ============ 通用板块 ============ */
        .section { padding: var(--space) 0; }
        .section.bg-light { background: var(--bg); }
        .section-head {
            display: flex;
            justify-content: space-between;
            align-items: flex-end;
            gap: 20px;
            margin-bottom: 38px;
            flex-wrap: wrap;
        }
        .eyebrow {
            display: inline-block;
            font-size: 13px;
            font-weight: 700;
            letter-spacing: .08em;
            color: var(--accent);
            background: var(--accent-light);
            padding: 6px 16px;
            border-radius: 999px;
            margin-bottom: 12px;
        }
        .section-head h2 {
            font-size: 31px;
            font-weight: 800;
            line-height: 1.28;
            color: var(--text);
        }
        .section-desc {
            color: var(--muted);
            font-size: 15px;
            line-height: 1.75;
            max-width: 620px;
            margin-top: 10px;
        }
        .section-head-light h2 { color: #fff; }
        .section-head-light .eyebrow { background: rgba(232, 84, 47, .28); color: #ffd9cd; }
        .section-head-light .section-desc { color: rgba(255, 255, 255, .72); }

        /* ============ 分类入口卡片 ============ */
        .topic-grid {
            display: grid;
            grid-template-columns: repeat(5, 1fr);
            gap: 18px;
        }
        .topic-card {
            display: flex;
            flex-direction: column;
            align-items: flex-start;
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: 26px 22px;
            box-shadow: var(--shadow-sm);
            transition: all .25s ease;
            position: relative;
            overflow: hidden;
        }
        .topic-card::before {
            content: '';
            position: absolute;
            inset: 0 0 auto 0;
            height: 4px;
            background: linear-gradient(90deg, var(--primary), var(--accent));
            transform: scaleX(0);
            transform-origin: left;
            transition: transform .3s ease;
        }
        .topic-card:hover {
            transform: translateY(-5px);
            box-shadow: var(--shadow);
            border-color: rgba(31, 78, 140, .22);
        }
        .topic-card:hover::before { transform: scaleX(1); }
        .topic-icon {
            width: 46px;
            height: 46px;
            border-radius: 13px;
            background: var(--primary-light);
            color: var(--primary);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 19px;
            margin-bottom: 16px;
            transition: all .25s;
        }
        .topic-card:hover .topic-icon { background: var(--primary); color: #fff; }
        .topic-card h3 { font-size: 17px; font-weight: 700; margin-bottom: 6px; }
        .topic-card p { font-size: 13px; color: var(--muted); line-height: 1.6; flex: 1; }
        .topic-count {
            display: inline-block;
            margin-top: 14px;
            font-size: 12px;
            font-weight: 700;
            color: var(--muted);
            background: var(--bg);
            padding: 4px 12px;
            border-radius: 999px;
            transition: all .2s;
        }
        .topic-card:hover .topic-count { background: var(--primary-light); color: var(--primary); }

        /* ============ FAQ 主体 ============ */
        .faq-layout {
            display: grid;
            grid-template-columns: 296px 1fr;
            gap: 40px;
            align-items: start;
        }
        .faq-sidebar { position: sticky; top: 96px; display: flex; flex-direction: column; gap: 22px; }
        .faq-nav {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 10px;
            box-shadow: var(--shadow-sm);
        }
        .faq-nav a {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 10px;
            padding: 12px 16px;
            border-radius: 10px;
            font-weight: 600;
            font-size: 15px;
            color: var(--text);
            transition: all .2s;
        }
        .faq-nav a:hover { background: var(--primary-light); color: var(--primary); }
        .faq-nav a.active { background: var(--primary); color: #fff; box-shadow: 0 4px 14px rgba(31, 78, 140, .25); }
        .faq-nav a span {
            font-size: 12px;
            background: rgba(31, 78, 140, .1);
            color: var(--primary);
            padding: 2px 8px;
            border-radius: 999px;
        }
        .faq-nav a.active span { background: rgba(255, 255, 255, .22); color: #fff; }
        .faq-side-card {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
        }
        .faq-side-card .img-wrap { max-height: 150px; overflow: hidden; }
        .faq-side-card img { width: 100%; height: 150px; object-fit: cover; transition: transform .4s ease; }
        .faq-side-card:hover img { transform: scale(1.05); }
        .faq-side-card .card-body { padding: 20px; }
        .faq-side-card h5 { font-size: 16px; font-weight: 700; margin-bottom: 8px; }
        .faq-side-card p { font-size: 13px; color: var(--muted); line-height: 1.7; margin-bottom: 14px; }

        .faq-groups { display: flex; flex-direction: column; gap: 26px; scroll-margin-top: 96px; }
        .faq-group {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-sm);
            overflow: hidden;
            scroll-margin-top: 96px;
        }
        .faq-group-title {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 18px 24px;
            background: linear-gradient(90deg, var(--primary-light), rgba(234, 241, 250, 0));
            border-bottom: 1px solid var(--border);
            font-size: 18px;
            font-weight: 800;
            color: var(--text);
        }
        .faq-group-title i { color: var(--primary); font-size: 17px; }
        .count-badge {
            margin-left: auto;
            font-size: 12px;
            font-weight: 700;
            color: var(--primary);
            background: rgba(31, 78, 140, .1);
            padding: 4px 12px;
            border-radius: 999px;
        }
        .faq-item { border-bottom: 1px solid var(--border); }
        .faq-item:last-child { border-bottom: none; }
        .faq-item summary {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 18px;
            padding: 18px 24px;
            cursor: pointer;
            font-weight: 600;
            font-size: 16px;
            list-style: none;
            transition: background .2s, color .2s;
        }
        .faq-item summary::-webkit-details-marker { display: none; }
        .faq-item summary:hover { background: var(--bg); }
        .faq-item[open] summary { color: var(--primary); background: var(--primary-light); }
        .faq-q { flex: 1; }
        .faq-icon {
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background: var(--bg);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 11px;
            color: var(--muted);
            flex-shrink: 0;
            transition: transform .28s ease, background .28s, color .28s;
        }
        .faq-item[open] .faq-icon { transform: rotate(135deg); background: var(--primary); color: #fff; }
        .faq-answer {
            padding: 0 24px 22px;
            color: var(--muted);
            font-size: 15px;
            line-height: 1.85;
        }

        /* ============ 最新问题 ============ */
        .question-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .question-card {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 24px;
            box-shadow: var(--shadow-sm);
            display: flex;
            flex-direction: column;
            transition: all .25s ease;
        }
        .question-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow);
            border-color: rgba(31, 78, 140, .2);
        }
        .question-card .meta { display: flex; align-items: center; gap: 10px; margin-bottom: 14px; flex-wrap: wrap; }
        .badge { padding: 4px 12px; border-radius: 999px; font-size: 12px; font-weight: 700; }
        .badge-solved { background: #e7f7ee; color: #157a46; }
        .badge-processing { background: #fef3e1; color: #a85b09; }
        .badge-new { background: #fdebee; color: #d03a58; }
        .q-date { font-size: 12px; color: var(--muted); }
        .question-card h3 { font-size: 17px; font-weight: 700; line-height: 1.45; margin-bottom: 10px; }
        .question-card p { font-size: 14px; color: var(--muted); line-height: 1.7; flex: 1; }
        .q-foot {
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin-top: 18px;
            padding-top: 14px;
            border-top: 1px dashed var(--border);
            font-size: 13px;
            color: var(--muted);
        }
        .q-views i { margin-right: 4px; }
        .q-cat { color: var(--primary); font-weight: 600; }

        /* ============ 流程步骤（深色） ============ */
        .steps-section {
            position: relative;
            padding: var(--space) 0;
            background: linear-gradient(130deg, #0e2138, #1f4e8c 66%, #2d6aae);
            overflow: hidden;
        }
        .steps-section::before {
            content: '';
            position: absolute;
            left: -120px;
            bottom: -160px;
            width: 380px;
            height: 380px;
            border-radius: 50%;
            background: rgba(255, 255, 255, .05);
            pointer-events: none;
        }
        .steps-grid {
            position: relative;
            z-index: 1;
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 22px;
        }
        .step-item {
            background: rgba(255, 255, 255, .08);
            border: 1px solid rgba(255, 255, 255, .14);
            border-radius: var(--radius-lg);
            padding: 30px 26px;
            transition: background .25s, transform .25s;
        }
        .step-item:hover { background: rgba(255, 255, 255, .13); transform: translateY(-4px); }
        .step-num {
            display: block;
            font-size: 36px;
            font-weight: 800;
            color: rgba(255, 255, 255, .28);
            margin-bottom: 14px;
            line-height: 1;
        }
        .step-item h3 { color: #fff; font-size: 18px; font-weight: 700; margin-bottom: 10px; }
        .step-item p { color: rgba(255, 255, 255, .74); font-size: 14px; line-height: 1.75; }

        /* ============ 相关阅读 ============ */
        .related-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }
        .content-card {
            display: flex;
            flex-direction: column;
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: all .25s ease;
        }
        .content-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-lg);
        }
        .content-card .img-wrap { overflow: hidden; }
        .content-card img { width: 100%; height: 190px; object-fit: cover; transition: transform .45s ease; }
        .content-card:hover img { transform: scale(1.06); }
        .card-body { display: flex; flex-direction: column; flex: 1; padding: 24px; }
        .card-tag { font-size: 13px; font-weight: 700; color: var(--accent); }
        .card-body h3 { font-size: 18px; font-weight: 700; line-height: 1.45; margin: 10px 0 8px; }
        .card-body p { font-size: 14px; color: var(--muted); line-height: 1.7; flex: 1; }
        .card-meta {
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin-top: 18px;
            padding-top: 14px;
            border-top: 1px dashed var(--border);
            font-size: 13px;
            color: var(--muted);
        }
        .card-meta .more { color: var(--primary); font-weight: 600; transition: gap .2s; }
        .card-meta .more i { font-size: 11px; }

        /* ============ CTA ============ */
        .cta-section { padding: 0 0 var(--space); }
        .cta-box {
            position: relative;
            padding: 66px 48px;
            border-radius: 26px;
            text-align: center;
            color: #fff;
            overflow: hidden;
            background:
                linear-gradient(118deg, rgba(18, 47, 82, .96), rgba(31, 78, 140, .86) 58%, rgba(64, 124, 194, .78)),
                url('/assets/images/backpic/back-2.png') center / cover;
            box-shadow: var(--shadow-lg);
        }
        .cta-box h2 { font-size: 31px; font-weight: 800; margin-bottom: 14px; }
        .cta-box p { font-size: 16px; color: rgba(255, 255, 255, .84); max-width: 560px; margin: 0 auto 30px; line-height: 1.8; }
        .cta-actions { display: flex; justify-content: center; gap: 14px; flex-wrap: wrap; }

        /* ============ 页脚 ============ */
        .site-footer {
            background: var(--primary-deep);
            color: #aebccb;
            padding: 64px 0 28px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 44px;
        }
        .footer-brand .logo { color: #fff; margin-bottom: 16px; }
        .footer-brand p {
            font-size: 14px;
            line-height: 1.85;
            color: #8ea1b5;
            max-width: 320px;
        }
        .footer-col h4 {
            color: #fff;
            font-size: 15px;
            font-weight: 700;
            margin-bottom: 18px;
        }
        .footer-col a {
            display: block;
            color: #8ea1b5;
            font-size: 14px;
            padding: 6px 0;
            transition: color .2s, padding-left .2s;
        }
        .footer-col a:hover { color: #fff; padding-left: 6px; }
        .footer-bottom {
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 16px;
            flex-wrap: wrap;
            border-top: 1px solid rgba(255, 255, 255, .08);
            padding-top: 24px;
            font-size: 13px;
            color: #7b8fa4;
        }
        .legal-links { display: flex; gap: 18px; }
        .legal-links a { color: #7b8fa4; transition: color .2s; }
        .legal-links a:hover { color: #fff; }

        /* ============ 响应式 ============ */
        @media (max-width: 1120px) {
            .search-box { width: 170px; }
            .nav-wrap { gap: 18px; }
            .topic-grid { grid-template-columns: repeat(3, 1fr); }
        }
        @media (max-width: 960px) {
            .menu-toggle { display: inline-flex; align-items: center; justify-content: center; }
            .search-box { display: none; }
            .nav-right .btn-primary { display: none; }
            .nav-links {
                position: absolute;
                top: 72px;
                left: -24px;
                right: -24px;
                background: #fff;
                border-bottom: 1px solid var(--border);
                box-shadow: var(--shadow);
                flex-direction: column;
                align-items: stretch;
                padding: 16px;
                gap: 6px;
                display: none;
            }
            .nav-links.open { display: flex; }
            .nav-links a { padding: 13px 16px; border-radius: 10px; }
            .faq-layout { grid-template-columns: 1fr; }
            .faq-sidebar { position: static; }
            .question-grid { grid-template-columns: repeat(2, 1fr); }
            .related-grid { grid-template-columns: repeat(2, 1fr); }
            .footer-grid { grid-template-columns: repeat(2, 1fr); }
            .steps-grid { grid-template-columns: repeat(2, 1fr); }
        }
        @media (max-width: 768px) {
            :root { --space: 56px; }
            .banner-content h1 { font-size: 34px; }
            .banner-sub { font-size: 16px; }
            .section-head { flex-direction: column; align-items: flex-start; }
            .section-head h2 { font-size: 26px; }
            .topic-grid { grid-template-columns: repeat(2, 1fr); }
            .faq-search { border-radius: 18px; flex-wrap: wrap; padding: 12px; }
            .faq-search input { width: 100%; padding: 4px 8px; font-size: 15px; }
            .faq-search .search-btn { width: 100%; border-radius: 12px; }
            .cta-box { padding: 48px 24px; }
        }
        @media (max-width: 520px) {
            .container { width: calc(100% - 32px); }
            .question-grid { grid-template-columns: 1fr; }
            .related-grid { grid-template-columns: 1fr; }
            .steps-grid { grid-template-columns: 1fr; }
            .topic-grid { grid-template-columns: 1fr; }
            .footer-grid { grid-template-columns: 1fr; }
            .banner-stats { flex-direction: column; }
            .stat-pill { text-align: center; }
            .cta-actions { flex-direction: column; }
            .cta-actions .btn { width: 100%; }
            .faq-group-title { font-size: 16px; padding: 16px 18px; }
            .faq-item summary { padding: 16px 18px; font-size: 15px; }
            .faq-answer { padding: 0 18px 20px; font-size: 14px; }
        }