/* roulang page: index */
:root {
            --brand: #2563EB;
            --brand-hover: #1D4ED8;
            --brand-active: #1E40AF;
            --accent: #F59E0B;
            --success: #10B981;
            --bg: #F8FAFC;
            --card-bg: #FFFFFF;
            --text: #0F172A;
            --text-sub: #475569;
            --text-light: #64748B;
            --border: #E2E8F0;
            --radius-btn: 10px;
            --radius-card: 16px;
            --radius-img: 12px;
            --shadow-default: 0 1px 3px rgba(15, 23, 42, 0.08), 0 4px 16px rgba(15, 23, 42, 0.06);
            --shadow-hover: 0 8px 24px rgba(15, 23, 42, 0.10);
            --font-family: "PingFang SC", "Microsoft YaHei", "Source Han Sans SC", "Noto Sans CJK SC", sans-serif;
            --transition: all 0.2s ease-out;
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--font-family);
            background: var(--bg);
            color: var(--text);
            line-height: 1.75;
            margin: 0;
            padding: 0;
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
        }

        img {
            max-width: 100%;
            height: auto;
            display: inline-block;
            vertical-align: middle;
        }

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

        a:hover {
            color: var(--brand-hover);
            text-decoration: none;
        }

        :focus-visible {
            outline: 2px solid var(--brand);
            outline-offset: 2px;
        }

        .container-custom {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }

        .section-space {
            padding: 84px 0;
        }

        .section-title-wrap {
            display: flex;
            justify-content: space-between;
            align-items: flex-end;
            margin-bottom: 32px;
            gap: 24px;
            flex-wrap: wrap;
        }

        .section-title-wrap h2 {
            font-size: 32px;
            font-weight: 800;
            margin: 0;
            line-height: 1.3;
            letter-spacing: -0.02em;
        }

        .section-subtitle {
            font-size: 14px;
            color: var(--text-light);
            margin-top: 6px;
        }

        .text-link-arrow {
            color: var(--brand);
            font-size: 15px;
            font-weight: 500;
            white-space: nowrap;
        }

        .text-link-arrow:hover {
            text-decoration: underline;
            color: var(--brand-hover);
        }

        .text-link-arrow i {
            font-size: 12px;
            margin-left: 4px;
        }

        /* 顶部导航 */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: rgba(255, 255, 255, 0.92);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid rgba(226, 232, 240, 0.7);
            min-height: 68px;
            display: flex;
            align-items: center;
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            width: 100%;
            gap: 20px;
        }

        .logo-area {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }

        .logo-mark {
            width: 36px;
            height: 36px;
            border-radius: 9px;
            background: linear-gradient(135deg, var(--brand) 0%, #3B82F6 100%);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 17px;
            font-weight: 800;
            letter-spacing: -0.5px;
        }

        .logo-text {
            display: flex;
            flex-direction: column;
            line-height: 1.2;
        }

        .logo-name {
            font-size: 18px;
            font-weight: 800;
            color: var(--text);
            letter-spacing: 0.02em;
        }

        .logo-domain {
            font-size: 11px;
            color: var(--text-light);
            letter-spacing: 0.01em;
        }

        .nav-menu {
            display: flex;
            align-items: center;
            gap: 4px;
            list-style: none;
            margin: 0;
            padding: 0;
            flex: 1;
            justify-content: center;
        }

        .nav-menu li a {
            display: block;
            padding: 8px 16px;
            border-radius: 10px;
            font-size: 15px;
            font-weight: 500;
            color: var(--text-sub);
            position: relative;
            transition: var(--transition);
        }

        .nav-menu li a:hover {
            background: #F1F5F9;
            color: var(--text);
        }

        .nav-menu li a.active {
            background: #DBEAFE;
            color: var(--brand);
            font-weight: 600;
        }

        .header-actions {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }

        .search-trigger {
            display: flex;
            align-items: center;
            gap: 8px;
            background: #F1F5F9;
            border: 1px solid transparent;
            border-radius: 999px;
            padding: 6px 8px 6px 14px;
            width: 190px;
            color: var(--text-light);
            font-size: 13px;
            transition: var(--transition);
            cursor: text;
        }

        .search-trigger:focus-within {
            border-color: var(--brand);
            box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.12);
            background: #fff;
        }

        .search-trigger input {
            all: unset;
            font-family: var(--font-family);
            font-size: 13px;
            color: var(--text);
            width: 100%;
        }

        .search-trigger input::placeholder {
            color: #94A3B8;
        }

        .search-trigger .kbd-hint {
            background: #fff;
            border: 1px solid var(--border);
            border-radius: 5px;
            padding: 1px 5px;
            font-size: 11px;
            color: var(--text-light);
            font-family: inherit;
            flex-shrink: 0;
        }

        .icon-btn {
            width: 38px;
            height: 38px;
            border-radius: 10px;
            background: #F1F5F9;
            border: none;
            color: var(--text-sub);
            font-size: 15px;
            display: flex;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            transition: var(--transition);
        }

        .icon-btn:hover {
            background: #E2E8F0;
            color: var(--text);
        }

        .header-cta {
            height: 42px;
            padding: 0 22px;
            background: var(--brand);
            color: #fff;
            border: none;
            border-radius: 10px;
            font-size: 14px;
            font-weight: 600;
            display: inline-flex;
            align-items: center;
            gap: 6px;
            white-space: nowrap;
            transition: var(--transition);
        }

        .header-cta:hover {
            background: var(--brand-hover);
            color: #fff;
            transform: translateY(-1px);
            box-shadow: 0 4px 12px rgba(37, 99, 235, 0.22);
        }

        .mobile-toggle {
            display: none;
            background: none;
            border: none;
            width: 40px;
            height: 40px;
            align-items: center;
            justify-content: center;
            font-size: 22px;
            color: var(--text);
            cursor: pointer;
        }

        .mobile-menu {
            display: none;
            position: fixed;
            top: 0;
            right: -100%;
            width: 300px;
            height: 100vh;
            background: #fff;
            z-index: 2000;
            padding: 20px;
            box-shadow: -8px 0 30px rgba(15, 23, 42, 0.14);
            transition: right 0.3s ease;
            flex-direction: column;
        }

        .mobile-menu.open {
            right: 0;
        }

        .mobile-menu-overlay {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: rgba(15, 23, 42, 0.4);
            z-index: 1999;
            opacity: 0;
            transition: opacity 0.3s ease;
        }

        .mobile-menu-overlay.show {
            opacity: 1;
        }

        /* Hero */
        .hero-section {
            background: linear-gradient(135deg, #FFFFFF 0%, #EFF6FF 70%, #F0F9FF 100%);
            position: relative;
            overflow: hidden;
            padding: 70px 0 90px;
        }

        .hero-section::before {
            content: '';
            position: absolute;
            right: -150px;
            top: -150px;
            width: 500px;
            height: 500px;
            background: radial-gradient(circle, rgba(37, 99, 235, 0.06) 0%, transparent 60%);
        }

        .hero-pattern-bg {
            position: absolute;
            inset: 0;
            background-image: url('/assets/images/backpic/back-1.png');
            background-size: cover;
            background-position: center;
            opacity: 0.04;
        }

        .hero-title {
            font-size: 50px;
            font-weight: 800;
            line-height: 1.2;
            letter-spacing: -0.03em;
            margin: 0 0 18px;
        }

        .hero-title .highlight {
            color: var(--brand);
            position: relative;
        }

        .hero-desc {
            font-size: 17px;
            line-height: 1.8;
            color: var(--text-sub);
            margin-bottom: 32px;
            max-width: 540px;
        }

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

        .btn-primary,
        .btn-secondary,
        .btn-white {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            height: 48px;
            padding: 0 24px;
            border-radius: 10px;
            font-size: 15px;
            font-weight: 600;
            border: none;
            cursor: pointer;
            transition: var(--transition);
        }

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

        .btn-primary:hover {
            background: var(--brand-hover);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 6px 16px rgba(37, 99, 235, 0.28);
        }

        .btn-secondary {
            background: #fff;
            color: var(--text);
            border: 1px solid #CBD5E1;
        }

        .btn-secondary:hover {
            background: #F8FAFC;
            border-color: #94A3B8;
            color: var(--text);
            transform: translateY(-2px);
            box-shadow: 0 4px 12px rgba(15, 23, 42, 0.06);
        }

        .hero-stats {
            display: flex;
            align-items: center;
            gap: 28px;
            margin-top: 40px;
            flex-wrap: wrap;
        }

        .hero-stats .stat-item {
            font-size: 15px;
            color: var(--text-sub);
        }

        .hero-stats .stat-num {
            font-size: 24px;
            font-weight: 800;
            color: var(--text);
            margin-right: 4px;
        }

        .hero-stats .divider {
            width: 1px;
            height: 25px;
            background: var(--border);
        }

        .hero-visual {
            position: relative;
            border-radius: 20px;
            box-shadow: var(--shadow-hover);
        }

        .hero-card-img {
            width: 100%;
            aspect-ratio: 5/4;
            object-fit: cover;
            border-radius: 20px;
        }

        .hero-card-float {
            position: absolute;
            left: -12px;
            bottom: 24px;
            background: rgba(255, 255, 255, 0.95);
            box-shadow: var(--shadow-hover);
            border-radius: 12px;
            padding: 12px 16px;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .float-icon {
            width: 32px;
            height: 32px;
            border-radius: 8px;
            background: #FEF3C7;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--accent);
            font-size: 14px;
        }

        /* 文章页通用 */
        .article-hero {
            background: #F8FAFC;
            padding: 20px 0 0;
        }

        .article-body-content {
            max-width: 780px;
        }

        .article-title {
            font-size: 38px;
            line-height: 1.35;
            font-weight: 800;
            margin: 0;
        }

        .article-meta {
            font-size: 13px;
            color: var(--text-light);
            gap: 10px;
            flex-wrap: wrap;
            margin-top: 16px;
        }

        .side-card {
            background: #fff;
            border-radius: 14px;
            box-shadow: var(--shadow-default);
            padding: 24px;
            margin-bottom: 24px;
        }

        .card-title-sm {
            font-size: 16px;
            font-weight: 600;
            margin-top: 0;
            margin-bottom: 14px;
        }

        /* 快速分类 */
        .quick-cats {
            margin-top: -10px;
            padding-bottom: 0;
        }

        .cat-icon-card {
            background: #fff;
            border-radius: 16px;
            box-shadow: var(--shadow-default);
            padding: 28px 24px 25px;
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 14px;
            text-align: center;
            transition: var(--transition);
            width: 100%;
            height: 100%;
            border: 1px solid transparent;
        }

        .cat-icon-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-3px);
            border-color: #BFDBFE;
        }

        .cat-icon {
            width: 52px;
            height: 52px;
            border-radius: 14px;
            background: #EFF6FF;
            color: var(--brand);
            font-size: 22px;
            display: flex;
            align-items: center;
            justify-content: center;
            transition: var(--transition);
        }

        .cat-icon-card:hover .cat-icon {
            background: var(--brand);
            color: #fff;
        }

        .cat-icon-name {
            font-size: 15px;
            font-weight: 600;
            color: var(--text);
        }

        .cat-icon-num {
            font-size: 13px;
            color: var(--text-light);
            margin-top: -18px;
        }

        /* 热门卡片网格 */
        .hot-card {
            background: #fff;
            border-radius: 16px;
            box-shadow: var(--shadow-default);
            overflow: hidden;
            transition: var(--transition);
            height: 100%;
            display: flex;
            flex-direction: column;
            border: 1px solid transparent;
        }

        .hot-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-3px);
            border-color: #DBEAFE;
        }

        .hot-card .card-cover {
            position: relative;
            overflow: hidden;
        }

        .hot-card .card-cover img {
            width: 100%;
            aspect-ratio: 16/10;
            object-fit: cover;
            transition: transform 0.4s ease;
        }

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

        .hot-card .badge-top {
            position: absolute;
            left: 12px;
            top: 12px;
            background: rgba(255, 255, 255, 0.94);
            border-radius: 10px;
            font-size: 12px;
            font-weight: 600;
            padding: 2px 8px;
            color: var(--text);
        }

        .card-cat-tag {
            display: inline-block;
            font-size: 12px;
            height: 24px;
            padding: 0 8px;
            font-size: 12px;
            font-weight: 600;
            background: #DBEAFE;
            color: var(--brand);
            border-radius: 6px;
            line-height: 24px;
            margin: 16px 0 6px;
        }

        .card-title {
            font-size: 18px;
            font-weight: 700;
            margin-bottom: 8px;
            color: var(--text);
            line-height: 1.4;
        }

        .card-desc {
            font-size: 14px;
            color: var(--text-sub);
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            line-height: 1.6;
            margin-bottom: 17px;
        }

        .card-footer {
            display: flex;
            align-items: center;
            justify-content: space-between;
            font-size: 13px;
            color: var(--text-light);
            margin-top: auto;
        }

        .card-footer .status-online {
            color: var(--success);
            font-weight: 500;
        }

        .card-footer .status-wait {
            color: var(--accent);
            font-weight: 500;
        }

        .card-round-btn {
            width: 30px;
            height: 30px;
            border-radius: 50%;
            background: #F1F5F9;
            border: none;
            color: var(--text);
            font-size: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            transition: var(--transition);
        }

        .card-round-btn:hover {
            background: var(--brand);
            color: #fff;
        }

        /* 排行双栏 */
        .rank-section {
            background: #fff;
        }

        .panel-card-rank {
            background: #fff;
            border-radius: 16px;
            padding: 20px;
            box-shadow: var(--shadow-default);
            height: 100%;
        }

        .rank-list-item {
            display: flex;
            align-items: center;
            gap: 14px;
            padding: 16px 8px;
            border-radius: 12px;
            background: #fff;
            cursor: pointer;
            transition: var(--transition);
            border: 1px solid transparent;
        }

        .rank-list-item:hover {
            background: #F0F7FF;
            border-color: #DBEAFE;
        }

        .rank-top {
            font-size: 15px;
            width: 28px;
            font-weight: 700;
            color: #CBD5E1;
            text-align: center;
            flex-shrink: 0;
        }
        .rank-item:first-child .rank-top {color: #F59E0B;}
        .rank-item:nth-child(2) .rank-top {color: #94A3B8;}
        .rank-item:nth-child(3) .rank-top {color: #D97706;}

        .rank-item {
            border-bottom: 1px solid var(--border);
        }
        .rank-item:last-child {border-bottom: none;}

        .rank-thumb {
            width: 56px;
            height: 56px;
            border-radius: 10px;
            object-fit: cover;
            flex-shrink: 0;
        }

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

        .rank-name {
            font-size: 15px;
            font-weight: 600;
            color: var(--text);
        }

        .rank-desc {
            font-size: 13px;
            color: var(--text-light);
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
        }

        .rank-score {
            flex-shrink: 0;
            background: #FEF3C7;
            color: #D97706;
            border-radius: 8px;
            padding: 4px 10px;
            font-size: 13px;
            font-weight: 700;
        }

        .panel-infolist {
            background: #F1F5F9;
            border-radius: 16px;
            padding: 22px;
            height: 100%;
        }

        .info-live-indicator {
            display: flex;
            align-items: center;
            gap: 6px;
            font-size: 14px;
            color: var(--success);
            font-weight: 600;
        }

        .info-live-indicator .pulse {
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: var(--success);
            position: relative;
        }

        .info-item {
            display: flex;
            justify-content: space-between;
            align-items: center;
            background: #fff;
            border-radius: 10px;
            padding: 12px 14px;
            margin-bottom: 10px;
            font-size: 14px;
        }

        .info-link {
            font-size: 14px;
            color: var(--brand);
            font-weight: 500;
            text-align: center;
            display: block;
            margin-top: 10px;
        }

        /* CMS 新闻区域 */
        .cms-news-section {
            background: #F1F5F9;
        }

        .cms-list-card {
            background: #fff;
            border-radius: 12px;
            padding: 18px 20px;
            display: flex;
            align-items: center;
            gap: 18px;
            transition: var(--transition);
            margin-bottom: 10px;
            border: 1px solid transparent;
        }

        .cms-list-card:hover {
            background: #F0F7FF;
            border-color: #BFDBFE;
            transform: translateX(2px);
        }

        .cms-list-thumb {
            width: 130px;
            height: 88px;
            border-radius: 10px;
            object-fit: cover;
            flex-shrink: 0;
        }

        .cms-list-content {
            flex: 1;
            min-width: 0;
        }

        .cms-list-title {
            font-size: 16px;
            font-weight: 600;
            margin-bottom: 4px;
        }

        .cms-list-summary {
            font-size: 14px;
            color: var(--text-sub);
            margin: 0;
        }

        .cms-list-meta {
            flex-shrink: 0;
            display: flex;
            flex-direction: column;
            align-items: flex-end;
            gap: 6px;
        }

        .cms-list-meta .tag {
            display: inline-block;
            background: #DBEAFE;
            color: var(--brand);
            border-radius: 4px;
            font-size: 12px;
            padding: 2px 8px;
        }

        .cms-list-meta .date {
            font-size: 13px;
            display: block;
            color: var(--text-light);
        }

        .btn-full {
            width: 100%;
            margin-top: 30px;
            justify-content: center;
        }

        /* 信任保障 */
        .trust-list-card {
            background: #DBEAFE;
            padding: 32px 40px;
            border-radius: 18px;
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 24px;
            justify-content: space-between;
        }
        .trust-lead {
            font-size: 15px;
            font-weight: 600;
            color: var(--text);
            max-width: 510px;
            margin: 0;
        }

        .trust-badges {
            display: flex;
            gap: 20px;
            flex-wrap: wrap;
        }
        .badge-trust {
            background: #fff;
            color: var(--text-sub);
            border-radius: 8px;
            padding: 6px 12px;
            font-size: 13px;
        }

        /* CTA */
        .cta-block {
            background: linear-gradient(110deg, #2563EB 0%, #1D4ED8 100%);
            border-radius: 20px;
            padding: 60px 45px;
            text-align: center;
            position: relative;
            overflow: hidden;
        }

        .cta-block h3 {
            color: #fff;
            font-size: 28px;
            font-weight: 700;
            margin-bottom: 10px;
        }

        .cta-block p {
            color: rgba(255, 255, 255, 0.75);
            font-size: 15px;
            margin-bottom: 30px;
        }

        .btn-white {
            display: inline-flex;
            background: #fff;
            color: var(--brand);
        }

        .btn-white:hover {
            background: #EFF6FF;
            color: var(--brand);
            transform: translateY(-2px);
            box-shadow: 0 6px 18px rgba(0, 0, 0, 0.08);
        }

        /* FAQ */
        .faq-items {
            max-width: 800px;
            margin: 0 auto;
        }
        .faq-item {
            background: #fff;
            border: 1px solid var(--border);
            border-radius: 14px;
            padding: 24px;
            margin-bottom: 12px;
        }

        .faq-question {
            font-size: 17px;
            font-weight: 600;
            display: flex;
            justify-content: space-between;
            align-items: center;
            cursor: pointer;
            margin: 0 0 10px;
        }

        .faq-answer {
            font-size: 15px;
            color: var(--text-sub);
        }

        /* Footer */
        .site-footer {
            background: #0F172A;
            color: #94A3B8;
            padding: 60px 0 0;
            margin-top: 90px;
        }

        .footer-title {
            font-size: 14px;
            font-weight: 600;
            color: #E2E8F0;
            margin-bottom: 18px;
        }

        .footer-links a {
            color: #94A3B8;
            display: block;
            font-size: 13px;
            padding: 4px 0;
            text-decoration: none;
        }

        .footer-newsletter {
            display: flex;
            gap: 8px;
            flex-wrap: wrap;
        }

        .footer-newsletter input {
            height: 38px;
            background-color: #fff;
            border: none;
            padding: 0 12px;
            border-radius: 8px;
            font-size: 13px;
            color: var(--text);
            width: 160px;
        }

        .footer-bottom {
            display: flex;
            justify-content: space-between;
            gap: 10px;
            flex-wrap: wrap;
            padding: 25px 0 20px;
            border-top: 1px solid rgba(148, 163, 184, 0.2);
            margin-top: 30px;
            font-size: 13px;
            color: #94A3B8;
        }

        .footer-bottom a {
            color: #94A3B8;
            margin-left: 15px;
        }

        .footer-bottom a:first-of-type {
            margin-left: 0;
        }

        .site-footer a.logo-link {
            color: #E2E8F0;
            font-size: 18px;
            font-weight: 700;
            display: inline-flex;
            align-items: center;
            gap: 8px;
            margin-bottom: 10px;
        }

        .d-none { display: none; }

        /* 分类页 */
        .category-h1 {
            font-size: 34px;
            font-weight: 800;
            line-height: 1.25;
            margin-top: 10px;
        }

        .content-cards-section .hot-card {
            margin-bottom: 12px;
        }

        .back-to-top {
            position: fixed;
            bottom: 50px;
            right: 50px;
            width: 45px;
            height: 45px;
            background: var(--brand);
            color: #fff;
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 15px;
            box-shadow: var(--shadow-hover);
            transition: var(--transition);
            z-index: 99;
            cursor: pointer;
        }

        .back-to-top:hover {
            background: var(--brand-hover);
            color: #fff;
        }

        /* 文章页内卡片 */
        .article-card-single:hover {
            border-color: var(--border);
        }

        /* ===== 响应式 ===== */
        @media screen and (max-width: 1024px) {
            .hero-title .highlight {}
            .hero-stats .stat-item {}
        }

        @media screen and (max-width: 900px) {
            .section-space { padding: 70px 0; }
            .section-title-wrap h2 { font-size: 28px; }
            .hero-title { font-size: 42px; }
            .hide-menu-lg {display:none;}
            .hide-info-xs {display:none;}
            .nav-menu { gap: 0; }
            .search-trigger { width: 160px; }

            .cms-list-meta { display: none; }
            .footer-newsletter input {width:100%;}
        }

        @media screen and (max-width: 768px) {
            .hero-title { font-size: 34px; }
            .container-custom { padding: 0 18px; }
            .section-space { padding: 50px 0; }
            .nav-menu, .header-actions .search-trigger, .header-actions .icon-btn { display: none; }
            .mobile-toggle {display: flex;}
            .mobile-menu { display: flex; }
            .mobile-menu-overlay { display: block; }
            .header-actions .header-cta { margin-left: auto; }
            .trust-list-card { padding: 26px 20px; }
            .cta-block { padding: 36px 18px; }
            .hero-stats { gap: 12px; }
            .hero-stats .divider { display: none; }
            .cms-list-card { padding: 15px; align-items: flex-start;}
            .cms-list-thumb {width: 100px;height: 70px; }
            .cms-list-content .card-desc {display:none}

            .footer-bottom .footer-copy {width:100%}
            .footer-nav-links {display: none}
        }

        @media screen and (max-width: 639px) {
            body {font-size: 15px; }
            .hero-title { font-size: 32px; }
            .section-title-wrap h2 {font-size: 25px;}
            .btn-primary, .btn-secondary {width: 100%; justify-content: center;}
            .cms-list-meta { display: none; }
            .mobile-faq .faq-item {padding: 20px 16px;}
            .hero-section {background-size: cover;}
            .rank-list-item {padding: 14px 4px;}
        }

        .col-cat {padding: 0 12px}
        .row-gap {gap: 20px 0}
        .flex-wrap {flex-wrap: wrap}
        .justify-between {justify-content: space-between}

/* roulang page: article */
:root {
    --brand: #2563EB;
    --brand-dark: #1D4ED8;
    --brand-deep: #1E40AF;
    --amber: #F59E0B;
    --green: #10B981;
    --bg: #F8FAFC;
    --card: #FFFFFF;
    --text: #0F172A;
    --muted: #475569;
    --light: #64748B;
    --border: #E2E8F0;
    --surface-blue: #EFF6FF;
    --radius-sm: 10px;
    --radius-md: 16px;
    --radius-lg: 20px;
    --shadow-sm: 0 1px 3px rgba(15, 23, 42, 0.08), 0 4px 16px rgba(15, 23, 42, 0.06);
    --shadow-hover: 0 8px 24px rgba(15, 23, 42, 0.10);
    --font: "PingFang SC", "Microsoft YaHei", "Source Han Sans SC", "Noto Sans CJK SC", system-ui, sans-serif;
    --container: 1200px;
    --transition: 150ms ease-out;
}

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

html, body {
    margin: 0;
    padding: 0;
    font-family: var(--font);
    background: var(--bg);
    color: var(--text);
    font-size: 16px;
    line-height: 1.75;
    text-rendering: optimizeLegibility;
    -webkit-font-smoothing: antialiased;
}

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

a {
    color: var(--brand);
    text-decoration: none;
    transition: color 150ms ease, opacity 150ms ease;
}

a:hover {
    color: var(--brand-dark);
}

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

button {
    border: none;
    background: none;
    cursor: pointer;
}

:focus-visible {
    outline: 2px solid var(--brand);
    outline-offset: 2px;
}

.container-custom {
    max-width: var(--container);
    margin: 0 auto;
    padding-left: 24px;
    padding-right: 24px;
    width: 100%;
}

body.no-scroll {
    overflow: hidden;
}

.site-header {
    position: sticky;
    top: 0;
    z-index: 100;
    background: rgba(255, 255, 255, 0.96);
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
    border-bottom: 1px solid rgba(226, 232, 240, 0.8);
    box-shadow: 0 4px 20px rgba(15, 23, 42, 0.02);
}

.header-wrap {
    display: flex;
    align-items: center;
    min-height: 72px;
    gap: 24px;
    justify-content: space-between;
}

.logo-link {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    font-weight: 800;
    color: var(--text);
    font-size: 18px;
    white-space: nowrap;
}

.logo-link:hover {
    color: var(--text);
}

.logo-mark {
    width: 34px;
    height: 34px;
    min-width: 34px;
    border-radius: 8px;
    background: var(--brand);
    color: #ffffff;
    font-size: 17px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-weight: 800;
}

.logo-domain {
    font-size: 11px;
    color: #94A3B8;
    letter-spacing: 0.02em;
}

.header-nav {
    display: flex;
    align-items: center;
    gap: 6px;
    flex: 1;
    justify-content: center;
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: 2px;
    padding: 0;
    margin: 0;
    list-style: none;
}

.nav-menu li a {
    display: inline-flex;
    align-items: center;
    height: 36px;
    padding: 0 14px;
    border-radius: 18px;
    font-size: 15px;
    color: #334155;
    font-weight: 500;
    transition: background var(--transition), color var(--transition);
}

.nav-menu li a:hover {
    background: #F1F5F9;
    color: var(--brand-dark);
}

.nav-menu li a.active {
    background: #EFF6FF;
    color: var(--brand);
    font-weight: 600;
}

.header-tools {
    display: flex;
    align-items: center;
    gap: 10px;
    justify-content: flex-end;
    flex-shrink: 0;
}

.search-box {
    position: relative;
    display: flex;
    align-items: center;
    background: #F8FAFC;
    border: 1px solid rgba(148, 163, 184, 0.3);
    border-radius: 999px;
    width: 195px;
    height: 38px;
    transition: width 150ms ease, border-color 150ms ease, box-shadow 150ms ease;
}

.search-box:focus-within {
    width: 320px;
    border-color: var(--brand);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.12);
    background: #fff;
}

.search-box input {
    border: none;
    background: transparent;
    height: 100%;
    flex: 1;
    min-width: 0;
    padding: 0 14px;
    font-size: 13px;
    color: var(--text);
}

.search-box input:focus {
    outline: none;
    border: none;
}

.search-box .sf-search-icon {
    padding-left: 13px;
    color: #64748B;
    font-size: 13px;
}

.search-box .sf-kbd {
    background: #fff;
    border: 1px solid var(--border);
    border-radius: 6px;
    color: var(--light);
    font-size: 11px;
    margin-right: 8px;
    padding: 2px 7px;
    line-height: 1.5;
    letter-spacing: 0.04em;
    box-shadow: 0 1px 1px rgba(0, 0, 0, 0.04);
}

.icon-button {
    width: 38px;
    height: 38px;
    border-radius: 50%;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    color: #334155;
    background: #fff;
    border: 1px solid var(--border);
    font-size: 15px;
    transition: all var(--transition);
}

.icon-button:hover {
    background: #F8FAFC;
    color: var(--brand);
    box-shadow: var(--shadow-sm);
}

.header-cta {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    height: 40px;
    padding: 0 18px;
    background: var(--brand);
    color: #fff;
    border-radius: var(--radius-sm);
    font-size: 14px;
    font-weight: 600;
    white-space: nowrap;
    border: none;
    transition: background var(--transition), transform 150ms ease, box-shadow 150ms ease;
}

.header-cta:hover {
    background: var(--brand-dark);
    color: #fff;
    transform: translateY(-1px);
    box-shadow: 0 6px 14px rgba(37, 99, 235, 0.22);
}

.header-cta:active {
    background: var(--brand-deep);
}

@media (max-width: 1100px) {
    .header-wrap {
        flex-wrap: wrap;
        padding-top: 18px;
        padding-bottom: 12px;
        min-height: auto;
        gap: 12px;
    }
    .header-nav {
        order: 3;
        width: 100%;
        display: flex;
        overflow-x: auto;
        scrollbar-width: none;
        flex: none;
        margin-top: 2px;
    }
    .header-nav::-webkit-scrollbar {
        display: none;
    }
    .nav-menu {
        flex-wrap: nowrap;
    }
    .search-box:focus-within {
        width: 220px;
    }
}

@media (max-width: 600px) {
    .site-header .logo-domain {
        display: none;
    }
    .logo-link {
        font-size: 17px;
        gap: 7px;
    }
    .logo-mark {
        width: 30px;
        height: 30px;
        min-width: 30px;
    }
    .header-tools {
        gap: 6px;
    }
    .search-box {
        width: 170px;
    }
    .search-box:focus-within {
        width: 200px;
    }
    .header-cta {
        padding: 0 12px;
        height: 36px;
        font-size: 13px;
    }
    .icon-button {
        display: none;
    }
}

.article-page-hero {
    position: relative;
    padding: 58px 0 40px;
    background: linear-gradient(180deg, #fff 0%, #F5F9FF 80%, var(--bg) 100%);
    overflow: hidden;
}

.article-page-hero::before {
    content: "";
    position: absolute;
    top: -50px;
    right: -90px;
    width: 330px;
    height: 330px;
    background: url("/assets/images/backpic/back-2.png") no-repeat center / cover;
    opacity: 0.28;
    border-radius: 50%;
    filter: blur(6px);
    pointer-events: none;
}

.article-breadcrumb {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 7px;
    font-size: 13px;
    color: #94A3B8;
    margin-bottom: 28px;
}

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

.article-breadcrumb a:hover {
    color: var(--brand);
}

.article-hero-title-wrap {
    max-width: 860px;
    margin: 0 auto;
    text-align: center;
    position: relative;
    z-index: 1;
}

.article-hero-title-wrap h1 {
    font-size: 42px;
    font-weight: 800;
    line-height: 1.3;
    color: var(--text);
    margin: 0 0 18px;
    letter-spacing: -0.01em;
}

.article-meta-line {
    display: flex;
    align-items: center;
    justify-content: center;
    flex-wrap: wrap;
    gap: 8px 18px;
    margin-top: 20px;
}

.meta-pill {
    display: inline-flex;
    align-items: center;
    background: #DBEAFE;
    color: #1D4ED8;
    font-size: 13px;
    font-weight: 600;
    border-radius: 999px;
    padding: 4px 12px;
}

.circle-dot {
    width: 4px;
    height: 4px;
    border-radius: 50%;
    background: #CBD5E1;
}

.meta-date {
    display: inline-flex;
    align-items: center;
    gap: 7px;
    color: var(--light);
    font-size: 13px;
}

.article-page-main {
    padding: 44px 0 72px;
}

.article-layout {
    display: flex;
    align-items: flex-start;
    gap: 40px;
    max-width: 1180px;
    margin: 0 auto;
}

.article-content-col {
    flex: 0 0 calc(100% - 360px);
    max-width: calc(100% - 360px);
    min-width: 0;
}

.article-aside-col {
    width: 320px;
    flex-shrink: 0;
    position: sticky;
    top: 104px;
}

.article-featured-image {
    border-radius: 18px;
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    margin-bottom: 32px;
    background: #fff;
}

.article-featured-image img {
    width: 100%;
    height: auto;
    max-height: 420px;
    object-fit: cover;
    aspect-ratio: 16 / 9;
}

.article-content {
    font-size: 17px;
    line-height: 1.85;
    color: #1E293B;
    overflow-wrap: anywhere;
}

.article-content > * + * {
    margin-top: 20px;
}

.article-content p {
    margin: 0 0 20px;
}

.article-content h2 {
    font-size: 26px;
    font-weight: 800;
    line-height: 1.4;
    margin: 40px 0 16px;
    padding-bottom: 10px;
    border-bottom: 1px solid var(--border);
}

.article-content h3 {
    font-size: 21px;
    font-weight: 800;
    margin: 32px 0 12px;
    padding-left: 14px;
    border-left: 4px solid var(--brand);
    line-height: 1.5;
}

.article-content h4 {
    font-size: 18px;
    font-weight: 700;
    margin-top: 26px;
    margin-bottom: 10px;
}

.article-content ul,
.article-content ol {
    padding-left: 24px;
    margin: 0 0 24px;
}

.article-content li {
    margin: 10px 0;
}

.article-content blockquote {
    margin: 28px 0;
    padding: 14px 20px;
    border-left: 4px solid var(--brand);
    background: #F1F5F9;
    color: var(--muted);
    border-radius: 0 10px 10px 0;
    font-size: 16px;
}

.article-content img {
    width: 100%;
    height: auto;
    border-radius: 14px;
    margin: 28px 0;
}

.article-content a {
    color: var(--brand);
    border-bottom: 1px solid rgba(37, 99, 235, 0.3);
}

.article-content a:hover {
    border-bottom-color: var(--brand);
}

.article-content code {
    background: #F1F5F9;
    border-radius: 6px;
    padding: 2px 7px;
    font-size: 14px;
    color: #0F172A;
}

.article-tags {
    margin-top: 40px;
    padding-top: 18px;
    border-top: 1px solid var(--border);
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 10px;
}

.tag-item {
    display: inline-flex;
    align-items: center;
    background: #F1F5F9;
    color: var(--light);
    font-size: 13px;
    font-weight: 500;
    padding: 6px 14px;
    border-radius: 999px;
    transition: all var(--transition);
}

.tag-item:hover {
    background: #EFF6FF;
    color: var(--brand);
}

.article-share {
    margin-top: 20px;
    padding: 20px 0;
    border-bottom: 1px solid var(--border);
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 14px;
}

.share-text {
    font-size: 14px;
    color: var(--light);
    font-weight: 500;
}

.share-actions {
    display: flex;
    align-items: center;
    gap: 8px;
}

.share-btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    height: 34px;
    padding: 0 12px;
    border-radius: 999px;
    border: 1px solid var(--border);
    font-size: 13px;
    color: var(--muted);
    background: #fff;
    transition: all var(--transition);
}

.share-btn:hover {
    background: #F8FAFC;
    border-color: #CBD5E1;
    color: var(--brand);
}

.share-btn i {
    font-size: 13px;
}

.not-found-block {
    background: #fff;
    border-radius: 20px;
    box-shadow: var(--shadow-sm);
    padding: 80px 30px;
    text-align: center;
}

.not-found-block .nf-icon {
    width: 76px;
    height: 76px;
    margin: 0 auto 25px;
    background: #EFF6FF;
    border-radius: 25px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--brand);
    font-size: 26px;
}

.not-found-block h2 {
    font-size: 28px;
    font-weight: 800;
    margin-bottom: 12px;
}

.not-found-block p {
    color: var(--muted);
    font-size: 15px;
    margin-bottom: 22px;
}

.aside-module {
    background: #fff;
    border-radius: 18px;
    box-shadow: var(--shadow-sm);
    padding: 26px 20px;
    margin-bottom: 24px;
}

.aside-module-title {
    display: flex;
    align-items: center;
    gap: 9px;
    font-size: 16px;
    font-weight: 700;
    color: var(--text);
    margin-bottom: 18px;
}

.aside-module-title i {
    color: var(--brand);
    font-size: 16px;
}

.aside-nav-list {
    list-style: none;
    margin: 0;
    padding: 0;
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.aside-nav-list li a {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 10px;
    font-size: 14px;
    line-height: 1.4;
    color: #334155;
    padding: 9px 10px;
    border-radius: 10px;
    background: transparent;
    transition: all var(--transition);
}

.aside-nav-list li a:hover {
    background: #F0F7FF;
    color: var(--brand);
}

.aside-nav-list li a i {
    font-size: 12px;
    color: #CBD5E1;
}

.aside-note {
    background: var(--surface-blue);
    border-radius: 16px;
    padding: 18px 16px;
    display: flex;
    gap: 12px;
}

.aside-note-icon {
    width: 34px;
    height: 34px;
    min-width: 34px;
    border-radius: 50%;
    background: #DBEAFE;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--brand);
    font-size: 14px;
}

.aside-note p {
    font-size: 13px;
    color: var(--muted);
    line-height: 1.7;
    margin: 0;
}

.aside-status-card {
    display: flex;
    align-items: center;
    gap: 12px;
    background: #fff;
    border-radius: 16px;
    box-shadow: var(--shadow-sm);
    padding: 14px;
    margin-bottom: 18px;
    border: 1px solid rgba(16, 185, 129, 0.14);
}

.status-dot {
    width: 36px;
    height: 36px;
    min-width: 36px;
    border-radius: 50%;
    background: #D1FAE5;
    color: var(--green);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 16px;
}

.status-meta strong {
    display: block;
    color: #065F46;
    font-size: 14px;
    line-height: 1.3;
}

.status-meta span {
    color: var(--light);
    font-size: 12px;
    line-height: 1.4;
    display: block;
}

.related-section {
    padding: 70px 0 20px;
    border-top: 1px solid var(--border);
    margin-top: 30px;
}

.section-head-2 {
    display: flex;
    align-items: flex-end;
    justify-content: space-between;
    gap: 20px;
    margin-bottom: 28px;
    flex-wrap: wrap;
}

.section-head-2 h2 {
    font-size: 28px;
    font-weight: 800;
    margin: 0;
    letter-spacing: -0.01em;
}

.section-head-2 .muted {
    font-size: 14px;
    color: var(--light);
    margin-left: 12px;
    font-weight: 400;
}

.text-link-arrow {
    color: var(--brand);
    font-size: 14px;
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    gap: 7px;
}

.text-link-arrow:hover {
    text-decoration: underline;
    color: var(--brand-dark);
}

.recommend-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
}

.recommend-card {
    background: #fff;
    border-radius: 16px;
    box-shadow: var(--shadow-sm);
    overflow: hidden;
    display: flex;
    flex-direction: column;
    transition: transform 160ms ease, box-shadow 160ms ease;
}

.recommend-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-hover);
}

.recommend-card-thumb {
    aspect-ratio: 4 / 3;
    overflow: hidden;
    background: #F1F5F9;
}

.recommend-card-thumb img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 220ms ease;
}

.recommend-card:hover .recommend-card-thumb img {
    transform: scale(1.03);
}

.recommend-card-body {
    padding: 18px 16px 16px;
    flex: 1;
    display: flex;
    flex-direction: column;
}

.recommend-card-body h3 {
    font-size: 16px;
    font-weight: 700;
    line-height: 1.5;
    margin: 0 0 8px;
    color: var(--text);
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.recommend-card-body p {
    font-size: 13px;
    color: var(--muted);
    line-height: 1.65;
    margin: 0 0 14px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.recommend-meta {
    margin-top: auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 10px;
    border-top: 1px solid var(--border);
    padding-top: 12px;
}

.recommend-meta span {
    font-size: 12px;
    color: var(--light);
    display: flex;
    align-items: center;
    gap: 6px;
}

.recommend-meta .go-link {
    font-size: 13px;
    color: var(--brand);
    font-weight: 600;
}

.faq-block {
    padding: 64px 0 12px;
}

.faq-inner {
    max-width: 850px;
    margin: 0 auto;
}

.faq-inner h2 {
    text-align: center;
    font-size: 30px;
    font-weight: 800;
    margin-bottom: 18px;
}

.faq-section-sub {
    text-align: center;
    font-size: 15px;
    color: var(--light);
    margin-bottom: 36px;
}

.faq-list {
    background: #fff;
    border-radius: 20px;
    overflow: hidden;
    box-shadow: var(--shadow-sm);
}

.faq-item {
    padding: 0;
    transition: background var(--transition);
}

.faq-item + .faq-item {
    border-top: 1px solid var(--border);
}

.faq-item summary {
    list-style: none;
    cursor: pointer;
    padding: 22px 26px;
    font-size: 16px;
    font-weight: 600;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 18px;
    color: var(--text);
    transition: color var(--transition);
    user-select: none;
}

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

.faq-item summary::after {
    content: "+";
    flex-shrink: 0;
    width: 26px;
    height: 26px;
    border-radius: 8px;
    background: #EFF6FF;
    color: var(--brand);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 19px;
    font-weight: 700;
    transition: all var(--transition);
}

.faq-item[open] summary::after {
    background: var(--brand);
    color: #fff;
    transform: rotate(45deg);
}

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

.faq-answer {
    padding: 0 26px 24px;
    font-size: 15px;
    line-height: 1.8;
    color: var(--muted);
    max-width: 760px;
}

.faq-answer p {
    margin: 0 0 10px;
}

.cta-banner {
    padding: 58px 0 34px;
}

.cta-banner-inner {
    background: linear-gradient(118deg, #1E3A8A 0%, #2563EB 78%, #3B82F6 100%);
    border-radius: 24px;
    padding: 42px 50px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 30px;
    position: relative;
    overflow: hidden;
}

.cta-banner::before {
    content: "";
    position: absolute;
    right: -120px;
    bottom: -160px;
    width: 400px;
    height: 400px;
    background: url("/assets/images/backpic/back-3.png") no-repeat center / cover;
    opacity: 0.05;
    pointer-events: none;
}

.cta-banner-inner h2 {
    color: #fff;
    font-size: 28px;
    font-weight: 800;
    line-height: 1.4;
    margin: 0 0 8px;
}

.cta-banner-inner p {
    color: rgba(255, 255, 255, 0.74);
    font-size: 15px;
    margin: 0;
}

.cta-white-btn {
    height: 48px;
    padding: 0 32px;
    display: inline-flex;
    align-items: center;
    gap: 9px;
    background: #fff;
    color: var(--brand);
    border-radius: 999px;
    font-size: 16px;
    font-weight: 700;
    border: none;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.12);
    transition: all var(--transition);
    flex-shrink: 0;
}

.cta-white-btn:hover {
    background: #F5F9FF;
    color: var(--brand-dark);
    transform: translateY(-2px);
}

.site-footer {
    background: #0F172A;
    color: #94A3B8;
    font-size: 13px;
    padding: 50px 0 26px;
    margin-top: 60px;
}

.site-footer .logo-link {
    color: #E2E8F0;
    font-size: 18px;
}

.site-footer .logo-domain {
    color: #64748B;
}

.footer-title {
    color: #E2E8F0;
    font-weight: 600;
    font-size: 15px;
    margin-bottom: 16px;
}

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

.footer-links a {
    color: #94A3B8;
    transition: color var(--transition);
}

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

.footer-newsletter {
    display: flex;
    align-items: center;
    background: rgba(255, 255, 255, 0.08);
    border: 1px solid rgba(255, 255, 255, 0.12);
    border-radius: 10px;
    padding: 4px 4px 4px 15px;
}

.footer-newsletter input {
    flex: 1;
    min-width: 0;
    background: transparent;
    border: none;
    color: #E2E8F0;
    font-size: 13px;
    outline: none;
}

.footer-newsletter input::placeholder {
    color: #64748B;
}

.footer-newsletter button {
    min-width: 70px;
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    margin-top: 36px;
    padding-top: 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 16px;
}

.footer-bottom a {
    color: #64748B;
    font-size: 12px;
}

.footer-bottom a:hover {
    color: #fff;
}

@media (max-width: 1024px) {
    .article-layout {
        display: block;
    }

    .article-content-col {
        width: 100%;
        max-width: 100%;
    }

    .article-aside-col {
        width: 100%;
        max-width: 100%;
        position: static;
        margin-top: 36px;
        display: grid;
        grid-template-columns: 1fr 1fr;
        gap: 16px;
    }
    .recommend-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 640px) {
    .article-page-hero {
        padding: 34px 0 30px;
    }

    .article-hero-title-wrap h1 {
        font-size: 28px;
        line-height: 1.35;
    }

    .article-meta-line {
        gap: 8px;
        font-size: 13px;
    }

    .article-page-main {
        padding-top: 28px;
    }

    .article-content {
        font-size: 16px;
        line-height: 1.8;
    }

    .article-content h2 {
        font-size: 21px;
    }

    .article-content h3 {
        font-size: 18px;
    }

    .article-featured-image {
        margin-bottom: 24px;
    }

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

    .related-section {
        padding-top: 36px;
    }

    .section-head-2 h2 {
        font-size: 23px;
    }

    .faq-inner h2 {
        font-size: 25px;
    }

    .faq-item summary {
        font-size: 15px;
        padding: 17px 18px;
    }

    .faq-answer {
        padding: 0 18px 20px;
    }

    .cta-banner-inner {
        flex-direction: column;
        align-items: flex-start;
        padding: 32px 26px;
    }

    .cta-white-btn {
        width: 100%;
        justify-content: center;
    }

    .article-aside-col {
        display: block;
    }

    .cta-banner-inner h2 {
        font-size: 23px;
    }
}

@media (max-width: 520px) {
    .header-tools .search-box {
        display: none;
    }

    .header-tools .icon-button {
        display: inline-flex;
    }

    .header-cta {
        padding: 0 10px;
    }

    .container-custom {
        padding-left: 16px;
        padding-right: 16px;
    }

    .recommend-card-thumb {
        aspect-ratio: 16 / 9;
    }
}

/* roulang page: category1 */
:root {
    --primary: #2563EB;
    --primary-strong: #1D4ED8;
    --primary-dark: #1E40AF;
    --primary-soft: #EFF6FF;
    --primary-border: #DBEAFE;
    --amber: #F59E0B;
    --green: #10B981;
    --green-soft: #D1FAE5;
    --red: #F97316;
    --red-soft: #FEF3C7;
    --bg: #F8FAFC;
    --white: #FFFFFF;
    --text: #0F172A;
    --muted: #475569;
    --light-muted: #64748B;
    --border: #E2E8F0;
    --border-strong: #CBD5E1;
    --radius-lg: 16px;
    --radius-sm: 10px;
    --font-sans: "PingFang SC", "Microsoft YaHei", "Source Han Sans SC", "Noto Sans CJK SC", -apple-system, sans-serif;
    --shadow: 0 1px 3px rgba(15, 23, 42, 0.08), 0 4px 16px rgba(15, 23, 42, 0.06);
    --shadow-hover: 0 8px 24px rgba(15, 23, 42, 0.10);
}
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
    margin: 0;
    font-family: var(--font-sans);
    background: var(--bg);
    color: var(--text);
    line-height: 1.75;
    font-size: 15px;
    -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; height: auto; display: block; }
ul, ol { list-style: none; margin: 0; padding: 0; }
a { text-decoration: none; color: inherit; }
button, input { font-family: inherit; }
a, button, input, summary { -webkit-tap-highlight-color: transparent; }
:focus-visible { outline: 2px solid var(--primary); outline-offset: 2px; border-radius: 4px; }

.container-custom {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}
.cell { min-width: 0; }

/* ========== Header ========== */
.site-header {
    position: sticky;
    top: 0;
    z-index: 100;
    background: rgba(255,255,255,0.92);
    backdrop-filter: saturate(140%) blur(10px);
    border-bottom: 1px solid var(--border);
    height: 68px;
    display: flex;
}
.header-inner {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
}
.logo-link {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    flex-shrink: 0;
}
.logo-mark {
    width: 34px;
    height: 34px;
    border-radius: 10px;
    background: var(--primary);
    color: #fff;
    font-size: 17px;
    font-weight: 800;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 10px rgba(37, 99, 235, 0.20);
}
.brand-wrap { display: flex; flex-direction: column; line-height: 1.15; }
.brand-text { font-weight: 800; font-size: 16px; letter-spacing: 0.02em; color: var(--text); }
.brand-domain { color: #94A3B8; font-size: 10px; letter-spacing: 0.08em; }
.site-header nav { margin: 0 auto; display: flex; align-items: center; }
.nav-menu { display: flex; align-items: center; gap: 6px; }
.nav-menu a {
    font-size: 15px;
    font-weight: 500;
    color: var(--muted);
    padding: 8px 13px;
    border-radius: 999px;
    display: block;
    transition: background .15s ease, color .15s ease;
}
.nav-menu a:hover { background: var(--primary-soft); color: var(--primary); }
.nav-menu a.active { background: var(--primary-soft); color: var(--primary); font-weight: 600; }

.header-tools { display: flex; align-items: center; gap: 10px; flex-shrink: 0; }
.search-shell {
    display: flex;
    align-items: center;
    gap: 8px;
    width: 190px;
    background: #F1F5F9;
    border: 1px solid transparent;
    border-radius: 999px;
    padding: 6px 10px 6px 12px;
    transition: border-color .15s ease, background .15s ease, width .2s ease, box-shadow .2s ease;
}
.search-shell:focus-within {
    width: 240px;
    background: #fff;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(37,99,235,.12);
}
.search-shell input {
    border: 0;
    background: transparent;
    width: 100%;
    font-size: 13px;
    color: var(--text);
}
.search-shell input:focus { outline: none; }
.search-shell input::placeholder { color: #94A3B8; }
.search-shell kbd {
    font-family: inherit;
    background: #E2E8F0;
    color: var(--light-muted);
    border-radius: 5px;
    padding: 1px 6px;
    font-size: 11px;
    white-space: nowrap;
}
.search-ico { color: var(--light-muted); font-size: 13px; }
.notify-btn {
    width: 36px;
    height: 36px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    border: 1px solid var(--border);
    background: #fff;
    color: var(--muted);
    font-size: 14px;
    transition: border-color .15s ease, color .15s ease, transform .15s ease;
}
.notify-btn:hover { color: var(--primary); border-color: var(--primary-border); transform: translateY(-1px); }
.header-cta {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: var(--primary);
    color: #fff;
    font-size: 14px;
    font-weight: 600;
    border-radius: var(--radius-sm);
    padding: 9px 18px;
    cursor: pointer;
    border: 0;
    transition: background .15s ease, transform .15s ease, box-shadow .15s ease;
}
.header-cta:hover { background: var(--primary-strong); transform: translateY(-2px); box-shadow: 0 6px 14px rgba(37,99,235,.24); }
.header-cta:active { background: var(--primary-dark); transform: translateY(0); }
.nav-toggle { display: none; }

@media (max-width: 1080px) {
    .site-header { height: 56px; }
    .header-inner { gap: 8px; }
    .search-shell { display: none; }
    .site-header nav {
        position: fixed;
        top: 56px;
        left: 0;
        right: 0;
        background: #fff;
        border-bottom: 1px solid var(--border);
        margin: 0;
        opacity: 0;
        visibility: hidden;
        transform: translateY(-10px);
        transition: all .2s ease;
        box-shadow: 0 18px 30px rgba(15,23,42,.06);
    }
    .site-header.nav-open nav { opacity: 1; visibility: visible; transform: translateY(0); }
    .nav-menu {
        flex-direction: column;
        align-items: stretch;
        padding: 18px 30px 26px;
        gap: 4px;
    }
    .nav-menu a { padding: 10px 12px; border-radius: 10px; }
    .nav-toggle {
        display: inline-flex;
        width: 36px;
        height: 36px;
        align-items: center;
        justify-content: center;
        border: 1px solid var(--border);
        background: #fff;
        border-radius: 10px;
        color: var(--muted);
        cursor: pointer;
        font-size: 15px;
    }
    .header-cta { padding: 8px 14px; font-size: 13px; gap: 4px; }
}

/* ========== Hero ========== */
.cat-hero {
    position: relative;
    background:
        linear-gradient(90deg, rgba(255,255,255,0.96) 0%, rgba(239,246,255,0.88) 50%, rgba(255,255,255,0.78) 100%),
        url('/assets/images/backpic/back-1.png') center / cover no-repeat;
    padding: 88px 0 72px;
    border-bottom: 1px solid var(--border);
    overflow: hidden;
}
.cat-hero:before {
    content: "";
    position: absolute;
    right: -90px;
    top: -90px;
    width: 300px;
    height: 300px;
    background: radial-gradient(circle, rgba(37,99,235,0.08), rgba(37,99,235,0));
    pointer-events: none;
}
.cat-hero-body { position: relative; z-index: 1; }
.hero-eyebrow {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    background: rgba(255,255,255,0.9);
    border: 1px solid var(--border);
    color: var(--light-muted);
    font-size: 13px;
    padding: 6px 14px;
    border-radius: 999px;
    margin-bottom: 20px;
    box-shadow: var(--shadow);
}
.hero-eyebrow i { color: var(--primary); font-size: 11px; }
.cat-hero h1 {
    font-size: 44px;
    line-height: 1.2;
    font-weight: 800;
    margin: 0 0 18px;
    letter-spacing: -0.02em;
}
.highlight-blue {
    color: var(--primary);
    background: linear-gradient(180deg, transparent 60%, rgba(219,234,254,0.85) 60%);
    padding: 0 3px;
}
.hero-sub {
    font-size: 17px;
    line-height: 1.75;
    color: var(--muted);
    max-width: 650px;
    margin: 0 0 30px;
}
.hero-actions { display: flex; align-items: center; flex-wrap: wrap; gap: 14px; margin-bottom: 36px; }
.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 12px;
    font-weight: 600;
    color: #EA580C;
    background: #FFF7ED;
    border: 1px solid #FDBA74;
    border-radius: 999px;
    padding: 4px 12px;
}
.hero-cards {
    display: flex;
    align-items: center;
    gap: 0;
    color: var(--text);
}
.hero-cards .separator { width: 1px; height: 34px; background: var(--border); margin: 0 24px; }
.hero-cards .data { display: flex; flex-direction: column; }
.hero-cards b { font-size: 22px; font-weight: 800; color: var(--primary-dark); }
.hero-cards span { font-size: 12px; color: var(--light-muted); }
.hero-side-card {
    background: #fff;
    border: 1px solid var(--border);
    border-radius: 20px;
    padding: 10px;
    box-shadow: var(--shadow-hover);
    max-width: 400px;
    margin-left: auto;
}
.hero-side-card img { border-radius: 14px; aspect-ratio: 4/3; object-fit: cover; }
.hero-side-card .card-note {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 15px 14px 10px;
    font-size: 13px;
    color: var(--muted);
}
@media (max-width: 1023px) {
    .cat-hero { padding: 56px 0 44px; }
    .cat-hero h1 { font-size: 32px; }
    .hero-side-card { margin: 34px auto 0; }
}

/* ========== Subnav / Category switcher ========== */
.cat-switch { padding: 32px 0 12px; }
.switch-list { display: flex; flex-wrap: wrap; gap: 14px; }
.switch-item {
    background: #fff;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    padding: 12px 18px;
    display: inline-flex;
    align-items: center;
    gap: 12px;
    transition: border-color .15s ease, box-shadow .15s ease, transform .15s ease;
}
.switch-item:hover { border-color: var(--primary-border); box-shadow: var(--shadow); transform: translateY(-2px); }
.switch-item.active { border-color: var(--primary); background: var(--primary-soft); }
.switch-item .sw-ico {
    width: 36px;
    height: 36px;
    border-radius: 10px;
    background: var(--primary-soft);
    color: var(--primary);
    display: inline-flex;
    align-items: center;
    justify-content: center;
}
.switch-item.active .sw-ico { background: var(--primary); color: #fff; }
.switch-item strong { font-size: 15px; display: block; line-height: 1.35; }
.switch-item small { font-size: 12px; color: var(--light-muted); }
.switch-item .arrow { color: var(--primary); font-size: 13px; margin-left: 6px; }
@media (max-width: 640px) {
    .switch-list { flex-direction: column; }
    .switch-item { justify-content: space-between; }
}

/* ========== Split directory ========== */
.cat-main { padding: 36px 0 40px; }
.cat-layout { margin-top: 20px; }
.left-directory:before { display: none; }
.cat-dir {
    position: sticky;
    top: 92px;
    background: #fff;
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 22px 18px;
    box-shadow: var(--shadow);
    margin-bottom: 24px;
}
.cat-dir h4 {
    margin: 0 0 4px;
    font-weight: 800;
    font-size: 17px;
    color: var(--text);
}
.cat-dir-desc { font-size: 12px; color: var(--light-muted); margin: 0 0 16px; }
.cat-dir a {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 9px 10px;
    border-radius: 9px;
    color: var(--muted);
    font-size: 14px;
    font-weight: 500;
    transition: background .15s ease, color .15s ease, transform .15s ease;
}
.cat-dir a:hover { background: var(--primary-soft); color: var(--primary); transform: translateX(2px); }
.cat-dir a .dot {
    width: 7px;
    height: 7px;
    border-radius: 3px;
    background: var(--primary-border);
    transition: background .15s ease;
}
.cat-dir a:hover .dot { background: var(--primary); }
.dir-tip {
    margin-top: 12px;
    border-radius: 12px;
    background: #F8FAFC;
    padding: 14px 12px;
    font-size: 13px;
    color: var(--light-muted);
    line-height: 1.6;
}
.dir-tip i { color: var(--primary); margin-right: 5px; }
@media (max-width: 1023px) {
    .left-directory { order: 2; }
    .cat-dir { position: static; top: auto; }
    .cat-dir ul { display: flex; flex-wrap: wrap; }
    .cat-dir-desc { display: none; }
}
.right-content { padding-left: 10px; }
.entry-multibtn {
    display: flex;
    flex-wrap: wrap;
    grid-template-columns: repeat(auto-fit, minmax(0,1fr));
    gap: 16px;
    margin-bottom: 40px;
}
.quick-status-card {
    background: linear-gradient(120deg, #F8FAFC, #EFF6FF);
    border: 1px solid var(--border);
    border-radius: 20px;
    padding: 18px 22px;
    display: flex;
    align-items: center;
    gap: 14px;
    flex: 1 1 200px;
    transition: transform .15s ease, box-shadow .15s ease, border-color .15s ease;
}
.quick-status-card:hover { border-color: var(--primary-border); transform: translateY(-2px); box-shadow: var(--shadow); }
.qsc-icon {
    width: 44px;
    height: 44px;
    border-radius: 12px;
    background: #fff;
    color: var(--primary);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 21px;
    box-shadow: var(--shadow);
    flex: none;
}
.qsc-content strong { font-size: 15px; display: block; line-height: 1.4; }
.qsc-content small { font-size: 13px; color: var(--light-muted); }
.qsc-content .green-dot { color: var(--green); font-size: 12px; margin-right: 2px; }
@media (max-width: 640px) {
    .quick-status-card { flex: 1 1 100%; }
}

/* Table of block sections */
.content-caption { margin-bottom: 16px; }
.section-card {
    background: #fff;
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 26px 22px;
    margin-bottom: 26px;
    box-shadow: var(--shadow);
}
.section-card .major-icon {
    width: 40px;
    height: 40px;
    border-radius: 12px;
    background: var(--primary);
    color: #fff;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    margin-right: 10px;
}
.section-title-row { display: flex; align-items: flex-start; justify-content: space-between; margin-bottom: 18px; }
.section-title-row h3 { margin: 0; font-size: 21px; font-weight: 800; }
.section-title-row h3 small { font-size: 13px; color: var(--light-muted); font-weight: 400; margin-left: 8px; }
.section-title-row .more-text { font-size: 14px; font-weight: 600; color: var(--primary); white-space: nowrap; }
.section-title-row .more-text i { font-size: 12px; margin-left: 4px; }

/* Hot List */
.rank-list { display: flex; flex-direction: column; gap: 12px; }
.rank-row {
    display: grid;
    grid-template-columns: 42px 96px minmax(0,1fr) auto auto;
    align-items: center;
    gap: 15px;
    background: var(--bg);
    border: 1px solid transparent;
    border-radius: 15px;
    padding: 12px 14px;
    transition: background .15s ease, border-color .15s ease, box-shadow .15s ease;
}
.rank-row:hover { background: #F0F7FF; border-color: var(--primary-border); box-shadow: var(--shadow); }
.rank-no { font-weight: 800; font-size: 22px; color: var(--border-strong); font-style: italic; letter-spacing: -0.04em; }
.rank-row:nth-child(1) .rank-no { color: #F59E0B; }
.rank-row:nth-child(2) .rank-no { color: #94A3B8; }
.rank-row:nth-child(3) .rank-no { color: #D97706; }
.rank-cover { aspect-ratio: 4/3; border-radius: 10px; overflow: hidden; box-shadow: 0 2px 6px rgba(15,23,42,0.06); }
.rank-cover img { width: 100%; height: 100%; object-fit: cover; }
.rank-name { font-size: 16px; font-weight: 700; }
.rank-type { font-size: 13px; color: var(--light-muted); margin: 3px 0 6px; }
.badge-live, .badge-queue, .badge-update {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    font-size: 12px;
    font-weight: 600;
    padding: 3px 9px;
    border-radius: 999px;
    line-height: 1.4;
}
.badge-live { background: var(--green-soft); color: #047857; }
.badge-queue { background: var(--red-soft); color: #B45309; }
.badge-update { background: #F1F5F9; color: #475569; }
.badge-live .fadot, .badge-queue .fadot, .badge-update .fadot { font-size: 8px; }
.rank-meta { display: flex; flex-direction: column; align-items: flex-end; }
.rank-meta b { font-size: 18px; color: var(--primary-dark); line-height: 1.1; }
.rank-meta span { font-size: 12px; color: var(--light-muted); }
.rank-row .more { color: var(--primary); font-weight: 600; font-size: 14px; white-space: nowrap; }
@media (max-width: 640px) {
    .rank-row { grid-template-columns: 28px 82px 1fr; padding: 12px; }
    .rank-cover span.rank-no { font-size: 15px; }
    .rank-meta, .rank-row .more { grid-column: 2 / 4; flex-direction: row; align-items: center; justify-content: space-between; gap: 10px; }
}

/* New Arrivals cards */
.arrival-grid { display: grid; grid-template-columns: repeat(2, minmax(0,1fr)); gap: 16px; }
.arrival-card {
    border: 1px solid var(--border);
    border-radius: 16px;
    background: #fff;
    overflow: hidden;
    transition: transform .15s ease, box-shadow .15s ease, border-color .15s ease;
}
.arrival-card:hover { transform: translateY(-3px); box-shadow: var(--shadow-hover); }
.arrival-cover { position: relative; overflow: hidden; aspect-ratio: 16/9; }
.arrival-cover img { width: 100%; height: 100%; object-fit: cover; transition: transform .3s ease; }
.arrival-card:hover .arrival-cover img { transform: scale(1.02); }
.arrival-cover .cover-tag {
    position: absolute;
    left: 12px;
    top: 12px;
    background: rgba(255,255,255,0.95);
    color: var(--primary-dark);
    font-size: 12px;
    font-weight: 600;
    padding: 4px 10px;
    border-radius: 999px;
}
.arrival-body { padding: 14px 16px 16px; }
.arrival-body h4 { margin: 0 0 4px; font-size: 16px; font-weight: 700; }
.arrival-body p { margin: 0; font-size: 13px; color: var(--muted); }
.arrival-enter {
    margin-top: 10px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    color: var(--primary);
    font-weight: 600;
    font-size: 14px;
}
.arrival-enter i { font-size: 12px; }
@media (max-width: 639px) {
    .arrival-grid { grid-template-columns: 1fr; }
}

/* Reputation ranking */
.reputation-row {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 14px 4px;
    border-bottom: 1px solid #EEF2F7;
}
.reputation-row:last-child { border-bottom: 0; }
.rep-no {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: #F0F7FF;
    color: var(--primary);
    font-weight: 800;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    flex: none;
}
.rep-info { flex: 1; min-width: 0; }
.rep-info strong { font-size: 15px; display: block; }
.rep-info span { font-size: 13px; color: var(--muted); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; display: block; }
.rep-score { text-align: right; }
.rep-score b { font-size: 17px; color: var(--amber); font-weight: 800; }
.rep-score span { display: block; font-size: 12px; color: var(--light-muted); }
.rep-arrow { color: var(--primary); font-size: 13px; }
@media (max-width: 560px) {
    .rep-info span { white-space: normal; }
}

/* Tips area */
.usage-list { display: grid; grid-template-columns: repeat(2, minmax(0,1fr)); gap: 14px; }
.usage-item {
    background: #F8FAFC;
    border: 1px solid var(--border);
    border-radius: 14px;
    padding: 16px;
    display: flex;
    gap: 10px;
}
.usage-item i { color: var(--primary); font-size: 18px; }
.usage-item strong { display: block; font-size: 14px; margin-bottom: 3px; }
.usage-item p { margin: 0; font-size: 13px; color: var(--light-muted); line-height: 1.6; }
@media (max-width: 767px) {
    .usage-list { grid-template-columns: 1fr; }
}

/* heat strip */
.heat-band {
    background: #fff;
    border: 1px solid var(--border);
    border-radius: 20px;
    padding: 22px 24px;
    box-shadow: var(--shadow);
    margin: 8px 0 38px;
}
.heat-title { display: flex; align-items: center; gap: 8px; font-size: 15px; font-weight: 700; margin-bottom: 14px; }
.heat-title .pulse { width: 8px; height: 8px; border-radius: 50%; background: var(--green); box-shadow: 0 0 0 5px rgba(16,185,129,0.16); }
.heat-title span { color: var(--green); font-size: 12px; font-weight: 500; margin-left: 6px; }
.heat-list { display: flex; flex-wrap: wrap; gap: 10px; }
.heat-chip {
    border: 1px solid var(--border);
    background: #fff;
    border-radius: 999px;
    padding: 9px 14px;
    display: inline-flex;
    gap: 6px;
    align-items: center;
    font-size: 14px;
    color: var(--muted);
    font-weight: 500;
    transition: background .15s ease, color .15s ease, border-color .15s ease, transform .15s ease;
}
.heat-chip b { color: var(--primary); font-weight: 800; }
.heat-chip:hover { background: var(--primary-soft); border-color: var(--primary-border); transform: translateY(-2px); }
@media (max-width: 560px) {
    .heat-band { padding: 18px; }
    .heat-chip { width: 100%; justify-content: space-between; }
}

/* FAQ */
.faq-section { padding-bottom: 32px; }
.faq-wrap { max-width: 900px; margin: 0 auto 40px; }
.centered-title { text-align: center; }
.centered-title h2 { font-size: 28px; font-weight: 800; letter-spacing: -0.01em; margin: 0 0 6px; }
.centered-title p { margin: 0 0 26px; color: var(--muted); font-size: 15px; }
.faq-wrap details {
    background: #fff;
    border: 1px solid var(--border);
    border-radius: 14px;
    margin-bottom: 12px;
    padding: 6px 18px;
    box-shadow: 0 1px 3px rgba(15,23,42,0.03);
    overflow: hidden;
}
.faq-wrap summary {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    cursor: pointer;
    padding: 14px 0;
    font-weight: 700;
    font-size: 16px;
    list-style: none;
}
.faq-wrap summary::-webkit-details-marker { display: none; }
.faq-wrap summary .faq-plus { color: var(--primary); width: 22px; height: 22px; border-radius: 50%; background: var(--primary-soft); display: inline-flex; align-items: center; justify-content: center; font-size: 13px; flex: none; transition: transform .18s ease, background .18s ease, color .18s ease; }
.faq-wrap details[open] summary .faq-plus { transform: rotate(45deg); background: var(--primary); color: #fff; }
.faq-wrap details[open] .answer { animation: faqFade .2s ease-out; }
.faq-wrap .answer { border-top: 1px solid #EEF2F7; padding: 0 0 18px; color: var(--muted); font-size: 15px; line-height: 1.8; }
@keyframes faqFade { from { opacity: 0; transform: translateY(-6px); } to { opacity: 1; transform: translateY(0); } }
@media (max-width: 640px) {
    .centered-title h2 { font-size: 25px; }
}

/* Final CTA */
.final-cta { padding: 20px 0 60px; }
.cta-banner {
    background: linear-gradient(115deg, #1E3A8A, #2563EB 70%, #3B82F6);
    border-radius: 24px;
    padding: 38px 24px;
    color: #fff;
    position: relative;
    overflow: hidden;
    text-align: center;
}
.cta-banner:before {
    content: "▣ ▢ ⌘ 〉";
    position: absolute;
    right: -40px;
    top: -20px;
    color: rgba(255,255,255,0.08);
    font-size: 74px;
    white-space: nowrap;
    font-weight: 800;
    letter-spacing: 5px;
}
.cta-banner h3 { margin: 0 0 8px; font-size: 28px; font-weight: 800; position: relative; }
.cta-banner p { font-size: 15px; margin: 0 auto 22px; max-width: 600px; opacity: 0.88; position: relative; }
.cta-banner .cta-buttons { display: flex; justify-content: center; flex-wrap: wrap; gap: 14px; position: relative; }
.white-cta {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: #fff;
    color: var(--primary-dark);
    font-weight: 700;
    border-radius: 999px;
    padding: 12px 22px;
    font-size: 15px;
    transition: all .15s ease;
    border: 0;
    cursor: pointer;
}
.white-cta:hover { background: #DBEAFE; transform: translateY(-2px); box-shadow: 0 10px 20px rgba(0,0,0,0.12); }
.ghost-white {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    border-radius: 999px;
    padding: 12px 22px;
    font-size: 15px;
    color: #fff;
    background: transparent;
    border: 1px solid rgba(255,255,255,0.6);
    transition: all .15s ease;
}
.ghost-white:hover { background: rgba(255,255,255,0.12); }
@media (max-width: 560px) {
    .cta-banner h3 { font-size: 23px; }
    .final-cta { padding-top: 10px; }
}

/* Footer */
.site-footer {
    background: #0F172A;
    color: #94A3B8;
    padding: 60px 0 28px;
    font-size: 13px;
    margin-top: 20px;
}
.site-footer ::selection { background: rgba(37,99,235,0.6); color: #fff; }
.site-footer .footer-title { color: #E2E8F0; font-size: 15px; font-weight: 600; margin-bottom: 14px; }
.site-footer a { color: #94A3B8; transition: color .15s ease, opacity .15s ease; }
.site-footer a:hover { color: #fff; opacity: 1; }
.site-footer .footer-links { display: flex; flex-direction: column; gap: 7px; }
.site-footer .footer-links a { font-size: 13px; }
.footer-newsletter {
    display: flex;
    gap: 0;
    background: #1E293B;
    border-radius: 999px;
    max-width: 290px;
    padding: 5px;
}
.footer-newsletter input {
    border: 0;
    background: transparent;
    color: #fff;
    width: 100%;
    font-size: 13px;
    padding: 0 10px;
}
.footer-newsletter input:focus { outline: none; }
.footer-newsletter input::placeholder { color: #64748B; }
.footer-newsletter .header-cta { border-radius: 999px; padding: 8px 14px; font-size: 13px; background: var(--primary); flex: none; }
.footer-bottom {
    border-top: 1px solid rgba(148,163,184,0.2);
    margin-top: 44px;
    padding-top: 20px;
    display: flex;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 12px;
    color: #64748B;
}
.footer-bottom a { color: #94A3B8; }
.footer-bottom a:hover { color: #fff; }
@media (max-width: 767px) {
    .site-footer { padding-top: 40px; }
    .footer-bottom { flex-direction: column; }
}

/* misc spacings */
.cat-section-gap { padding: 6px 0 20px; }

/* roulang page: category2 */
:root {
            --primary: #2563EB;
            --primary-hover: #1D4ED8;
            --primary-dark: #1E40AF;
            --accent: #F59E0B;
            --accent-bg: #FEF3C7;
            --green: #10B981;
            --green-bg: #D1FAE5;
            --bg: #F8FAFC;
            --card: #FFFFFF;
            --text: #0F172A;
            --muted: #475569;
            --light: #64748B;
            --border: #E2E8F0;
            --soft-blue: #EFF6FF;
            --blue-line: #DBEAFE;
            --radius-card: 16px;
            --radius-btn: 10px;
            --shadow-card: 0 1px 3px rgba(15, 23, 42, 0.06), 0 4px 16px rgba(15, 23, 42, 0.06);
            --shadow-hover: 0 8px 24px rgba(15, 23, 42, 0.1);
            --container-w: 1200px;
            --font-sans: "PingFang SC", "Microsoft YaHei", "Source Han Sans SC", "Noto Sans CJK SC", -apple-system, BlinkMacSystemFont, sans-serif;
            --ease: 150ms ease-out;
        }
        *,
        *::before,
        *::after {
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            margin: 0;
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.75;
            background: var(--bg);
            color: var(--text);
            -webkit-font-smoothing: antialiased;
        }
        a {
            color: inherit;
            text-decoration: none;
        }
        img {
            max-width: 100%;
            display: block;
        }
        button,
        input {
            font-family: inherit;
            font-size: 14px;
            border-radius: 10px;
        }
        button {
            border: none;
            cursor: pointer;
        }
        .container-custom {
            max-width: var(--container-w);
            margin: 0 auto;
            padding: 0 24px;
        }
        .text-primary {
            color: var(--primary);
        }
        .badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 12px;
            font-weight: 600;
            line-height: 1;
            padding: 5px 10px;
            border-radius: 999px;
            background: var(--blue-line);
            color: var(--primary-hover);
            white-space: nowrap;
        }
        .badge-green {
            background: var(--green-bg);
            color: #047857;
        }
        .badge-amber {
            background: var(--accent-bg);
            color: #B45309;
        }
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            height: 44px;
            padding: 0 22px;
            border-radius: var(--radius-btn);
            font-size: 15px;
            font-weight: 600;
            transition: background var(--ease), box-shadow var(--ease), transform var(--ease), border-color var(--ease);
        }
        .btn:hover {
            text-decoration: none;
        }
        .btn-primary {
            background: var(--primary);
            color: #fff;
        }
        .btn-primary:hover {
            background: var(--primary-hover);
            transform: translateY(-2px);
            box-shadow: 0 8px 20px rgba(37, 99, 235, 0.2);
        }
        .btn-primary:active {
            background: var(--primary-dark);
        }
        .btn-secondary {
            background: #fff;
            border: 1px solid #CBD5E1;
            color: var(--text);
        }
        .btn-secondary:hover {
            background: var(--bg);
            border-color: #94A3B8;
            transform: translateY(-2px);
        }
        .btn-white {
            background: #fff;
            color: var(--primary);
        }
        .btn-white:hover {
            background: #EFF6FF;
            transform: translateY(-2px);
            box-shadow: 0 8px 20px rgba(2, 6, 23, 0.14);
        }
        .text-link {
            display: inline-flex;
            align-items: center;
            gap: 5px;
            color: var(--primary);
            font-weight: 600;
            font-size: 14px;
            transition: color var(--ease);
        }
        .text-link:hover {
            color: var(--primary-hover);
            text-decoration: underline;
            text-underline-offset: 4px;
        }
        :focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 2px;
        }
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(255, 255, 255, 0.92);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border-bottom: 1px solid rgba(226, 232, 240, 0.9);
            height: 68px;
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
        }
        .brand-nav {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }
        .logo-mark {
            width: 34px;
            height: 34px;
            background: var(--primary);
            color: #fff;
            font-weight: 800;
            font-size: 17px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            border-radius: 10px;
            box-shadow: 0 4px 10px rgba(37, 99, 235, 0.18);
        }
        .logo-text {
            display: flex;
            flex-direction: column;
            line-height: 1.1;
        }
        .logo-text strong {
            font-size: 16px;
            font-weight: 800;
            letter-spacing: 0.2px;
            color: var(--text);
        }
        .logo-text small {
            font-size: 11px;
            color: #94A3B8;
            margin-top: 3px;
            letter-spacing: 0.1px;
        }
        .main-nav {
            margin-left: 18px;
        }
        .nav-menu {
            list-style: none;
            margin: 0;
            padding: 0;
            display: flex;
            align-items: center;
            gap: 4px;
        }
        .nav-menu a {
            display: inline-block;
            padding: 10px 14px;
            font-size: 15px;
            font-weight: 500;
            color: #334155;
            border-radius: 12px;
            transition: background var(--ease), color var(--ease);
        }
        .nav-menu a:hover {
            background: #F1F5F9;
            color: var(--primary);
        }
        .nav-menu a.active {
            background: var(--soft-blue);
            color: var(--primary-hover);
            font-weight: 700;
        }
        .header-tools {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }
        .command-search {
            display: flex;
            align-items: center;
            gap: 8px;
            width: 220px;
            height: 38px;
            background: #F1F5F9;
            border: 1px solid transparent;
            border-radius: 999px;
            padding: 0 12px;
            transition: width var(--ease), border-color var(--ease), background var(--ease);
        }
        .command-search:focus-within {
            width: 280px;
            background: #fff;
            border-color: #BFDBFE;
            box-shadow: 0 0 0 4px rgba(37, 99, 235, 0.08);
        }
        .command-search i {
            color: var(--light);
            font-size: 13px;
        }
        .command-search input {
            background: transparent;
            border: none;
            outline: none;
            width: 100%;
            color: var(--text);
            font-size: 13px;
            padding: 0;
        }
        .command-search input::placeholder {
            color: #94A3B8;
        }
        .command-search kbd {
            font-size: 11px;
            color: #64748B;
            background: #E2E8F0;
            padding: 2px 7px;
            border-radius: 6px;
            white-space: nowrap;
        }
        .icon-btn {
            width: 38px;
            height: 38px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            background: #F1F5F9;
            color: var(--muted);
            border-radius: 12px;
            transition: background var(--ease), color var(--ease);
        }
        .icon-btn:hover {
            background: var(--soft-blue);
            color: var(--primary);
        }
        .header-cta {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 7px;
            height: 38px;
            padding: 0 16px;
            background: var(--primary);
            color: #fff;
            font-size: 14px;
            font-weight: 700;
            border-radius: 10px;
            transition: background var(--ease), transform var(--ease);
        }
        .header-cta:hover {
            background: var(--primary-hover);
            color: #fff;
            transform: translateY(-1px);
        }
        .menu-toggle {
            width: 40px;
            height: 40px;
            background: #F1F5F9;
            color: var(--text);
            border-radius: 12px;
            display: none;
            align-items: center;
            justify-content: center;
        }
        .category-hero {
            position: relative;
            background: linear-gradient(120deg, #FFFFFF 0%, #EFF6FF 72%, #E0EDFF 100%);
            overflow: hidden;
            padding: 56px 0 46px;
        }
        .category-hero::before {
            content: "";
            position: absolute;
            width: 500px;
            height: 500px;
            right: -160px;
            top: -170px;
            border-radius: 50%;
            background: rgba(37, 99, 235, 0.08);
            pointer-events: none;
        }
        .eyebrow {
            display: inline-flex;
            align-items: center;
            gap: 9px;
            font-size: 13px;
            font-weight: 700;
            color: var(--primary);
            background: rgba(219, 234, 254, 0.7);
            padding: 7px 14px;
            border-radius: 999px;
            margin-bottom: 18px;
        }
        .category-hero h1 {
            font-size: clamp(30px, 5vw, 46px);
            font-weight: 800;
            line-height: 1.2;
            margin: 0 0 16px;
            max-width: 660px;
        }
        .category-hero h1 .hero-glow {
            color: var(--primary);
            background: linear-gradient(135deg, #2563EB, #1D4ED8);
            -webkit-background-clip: text;
            background-clip: text;
            -webkit-text-fill-color: transparent;
        }
        .hero-desc {
            font-size: 17px;
            line-height: 1.8;
            color: var(--muted);
            max-width: 580px;
            margin-bottom: 28px;
        }
        .hero-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 14px;
            margin-bottom: 30px;
        }
        .hero-metrics {
            display: flex;
            flex-wrap: wrap;
            gap: 18px 28px;
            padding-top: 4px;
        }
        .hero-metric {
            display: flex;
            align-items: baseline;
            gap: 8px;
        }
        .hero-metric strong {
            font-size: 20px;
            font-weight: 800;
            color: var(--text);
        }
        .hero-metric span {
            font-size: 13px;
            color: var(--light);
        }
        .hero-visual {
            position: relative;
            border-radius: 20px;
            box-shadow: 0 18px 44px rgba(15, 23, 42, 0.12);
            overflow: hidden;
            background: #fff;
        }
        .hero-visual img {
            width: 100%;
            aspect-ratio: 4 / 3;
            object-fit: cover;
        }
        .hero-float-badge {
            position: absolute;
            left: 16px;
            top: 16px;
            display: inline-flex;
            align-items: center;
            gap: 7px;
            background: rgba(255, 255, 255, 0.92);
            color: var(--text);
            padding: 8px 13px;
            border-radius: 999px;
            font-size: 13px;
            font-weight: 700;
            box-shadow: 0 8px 22px rgba(15, 23, 42, 0.08);
            backdrop-filter: blur(6px);
        }
        .hero-float-badge i {
            color: #EA580C;
        }
        .hero-float-play {
            position: absolute;
            right: 18px;
            bottom: 18px;
            width: 52px;
            height: 52px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.9);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--primary);
            box-shadow: 0 12px 28px rgba(15, 23, 42, 0.14);
            backdrop-filter: blur(8px);
        }
        .channel-tabs {
            background: #fff;
            border-bottom: 1px solid var(--border);
            padding: 12px 0;
        }
        .tabs-inner {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-wrap: wrap;
        }
        .tabs-label {
            font-size: 14px;
            color: var(--light);
            margin-right: 4px;
        }
        .channel-tab-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 14px;
            font-weight: 600;
            color: var(--light);
            background: #F8FAFC;
            border: 1px solid var(--border);
            padding: 7px 14px;
            border-radius: 999px;
            transition: all var(--ease);
        }
        .channel-tab-link:hover {
            border-color: #BFDBFE;
            color: var(--primary);
            background: var(--soft-blue);
        }
        .channel-tab-link.active {
            background: var(--primary);
            color: #fff;
            border-color: var(--primary);
        }
        .category-main {
            padding: 54px 0 70px;
        }
        .category-rail {
            position: sticky;
            top: 92px;
            background: #fff;
            border: 1px solid var(--border);
            border-radius: 18px;
            box-shadow: var(--shadow-card);
            padding: 18px;
            margin-bottom: 22px;
        }
        .rail-title {
            font-size: 13px;
            font-weight: 700;
            color: #94A3B8;
            text-transform: uppercase;
            letter-spacing: 1px;
            margin-bottom: 12px;
        }
        .rail-items {
            display: flex;
            flex-direction: column;
            gap: 4px;
        }
        .rail-item {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 14px;
            font-weight: 600;
            color: var(--muted);
            background: transparent;
            border-radius: 10px;
            padding: 9px 12px;
            transition: background var(--ease), color var(--ease), transform var(--ease);
        }
        .rail-item i {
            color: #93C5FD;
            width: 16px;
            font-size: 12px;
        }
        .rail-item:hover {
            background: var(--soft-blue);
            color: var(--primary);
            transform: translateX(3px);
        }
        .main-right-section {
            margin-bottom: 54px;
        }
        .section-head {
            display: flex;
            align-items: flex-end;
            justify-content: space-between;
            gap: 16px;
            margin-bottom: 22px;
        }
        .section-head h2 {
            font-size: clamp(22px, 3vw, 28px);
            font-weight: 800;
            margin: 0 0 6px;
            letter-spacing: -0.2px;
        }
        .section-head p {
            margin: 0;
            font-size: 14px;
            color: var(--light);
        }
        .section-link {
            white-space: nowrap;
        }
        .feature-bundle {
            display: grid;
            gap: 18px;
            margin-bottom: 22px;
        }
        .feature-bundle-main {
            background: #fff;
            border-radius: 20px;
            border: 1px solid #F0F2F5;
            box-shadow: var(--shadow-card);
            overflow: hidden;
            transition: box-shadow var(--ease), transform var(--ease);
            display: flex;
            flex-direction: column;
        }
        .feature-bundle-main:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-3px);
        }
        .feature-main-media {
            position: relative;
            background: #fff;
        }
        .feature-main-media img {
            width: 100%;
            aspect-ratio: 16 / 8;
            object-fit: cover;
        }
        .feature-main-body {
            padding: 20px 22px;
        }
        .feature-main-body h3 {
            font-size: 20px;
            font-weight: 800;
            margin: 12px 0 6px;
            line-height: 1.35;
        }
        .feature-main-body p {
            color: var(--muted);
            font-size: 14px;
            margin: 0 0 16px;
            line-height: 1.7;
        }
        .feature-add-list {
            display: flex;
            flex-direction: column;
            gap: 14px;
        }
        .feature-add-item {
            background: #fff;
            border: 1px solid #F1F5F9;
            border-radius: 18px;
            box-shadow: var(--shadow-card);
            padding: 16px;
            display: flex;
            gap: 15px;
            align-items: center;
            transition: border-color var(--ease), box-shadow var(--ease);
        }
        .feature-add-item:hover {
            box-shadow: var(--shadow-hover);
            border-color: #DBEAFE;
        }
        .mini-thumb {
            position: relative;
            flex: 0 0 76px;
            width: 76px;
            border-radius: 14px;
            overflow: hidden;
            aspect-ratio: 1 / 1;
        }
        .mini-thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        .mini-badge {
            position: absolute;
            left: 5px;
            top: 5px;
            font-size: 11px;
            font-weight: 800;
            background: rgba(255, 255, 255, 0.88);
            color: var(--primary);
            border-radius: 8px;
            padding: 2px 7px;
        }
        .feature-add-text {
            flex: 1;
            min-width: 0;
        }
        .feature-add-text h4 {
            font-size: 15px;
            font-weight: 700;
            margin: 0 0 4px;
            line-height: 1.4;
        }
        .feature-add-text p {
            font-size: 13px;
            color: var(--light);
            margin: 0;
            line-height: 1.5;
        }
        .feature-add-status {
            font-size: 12px;
            font-weight: 700;
            color: #059669;
            white-space: nowrap;
            display: flex;
            align-items: center;
            gap: 4px;
        }
        .feature-add-status.queue {
            color: #D97706;
        }
        .heat-panel {
            background: #fff;
            border-radius: 20px;
            border: 1px solid #F0F2F5;
            box-shadow: var(--shadow-card);
            padding: 24px;
        }
        .heat-panel-head {
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-bottom: 18px;
        }
        .heat-panel-head h3 {
            font-size: 18px;
            font-weight: 800;
            margin: 0;
        }
        .online-dot {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 13px;
            font-weight: 600;
            color: #059669;
        }
        .online-dot::before {
            content: "";
            width: 8px;
            height: 8px;
            background: var(--green);
            border-radius: 50%;
            box-shadow: 0 0 0 4px rgba(16, 185, 129, 0.14);
        }
        .chip-list {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
        }
        .heat-chip {
            width: calc(33.333% - 8px);
            background: #F8FAFC;
            border: 1px solid #EDF1F7;
            border-radius: 14px;
            padding: 12px 12px;
            transition: background var(--ease), border-color var(--ease), transform var(--ease);
            text-decoration: none;
        }
        .heat-chip:hover {
            background: var(--soft-blue);
            border-color: #BFDBFE;
            transform: translateY(-2px);
            text-decoration: none;
        }
        .heat-chip-name {
            display: flex;
            align-items: center;
            gap: 5px;
            font-size: 14px;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 4px;
        }
        .heat-chip-name i {
            color: var(--primary);
            font-size: 12px;
        }
        .heat-chip-num {
            font-size: 12px;
            color: var(--light);
        }
        .heat-chip-num strong {
            color: var(--primary);
            font-weight: 800;
        }
        .guide-note {
            display: flex;
            align-items: flex-start;
            gap: 10px;
            background: #F1F5F9;
            border-radius: 14px;
            padding: 12px 16px;
            font-size: 14px;
            color: var(--muted);
            margin-top: 20px;
        }
        .guide-note i {
            color: var(--primary);
            margin-top: 4px;
        }
        .list-rank {
            background: #fff;
            border-radius: 20px;
            box-shadow: var(--shadow-card);
            border: 1px solid #F0F2F5;
            overflow: hidden;
        }
        .rank-row {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 14px;
            padding: 15px 20px;
            border-bottom: 1px solid #F1F5F9;
            transition: background var(--ease);
            flex-wrap: wrap;
        }
        .rank-row:last-child {
            border-bottom: none;
        }
        .rank-row:hover {
            background: #F6FAFF;
        }
        .rank-main {
            display: flex;
            align-items: center;
            gap: 14px;
        }
        .rank-num {
            font-size: 20px;
            font-weight: 800;
            color: #CBD5E1;
            width: 28px;
            flex-shrink: 0;
        }
        .rank-row:first-child .rank-num,
        .rank-row:nth-child(2) .rank-num,
        .rank-row:nth-child(3) .rank-num {
            color: var(--accent);
        }
        .rank-thumb {
            width: 64px;
            height: 44px;
            border-radius: 8px;
            overflow: hidden;
        }
        .rank-thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        .rank-name strong {
            display: block;
            font-size: 14px;
            font-weight: 700;
            margin-bottom: 2px;
        }
        .rank-name span {
            font-size: 12px;
            color: var(--light);
        }
        .rank-right {
            display: flex;
            align-items: center;
            gap: 12px;
            font-size: 12px;
            color: var(--light);
        }
        .faq-section {
            background: #fff;
        }
        .faq-outer {
            padding: 58px 0 28px;
        }
        .faq-title-block {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 20px;
            margin-bottom: 26px;
            flex-wrap: wrap;
        }
        .faq-title-block h2 {
            font-size: 26px;
            font-weight: 800;
            margin: 0;
        }
        .faq-title-block p {
            color: var(--light);
            margin: 4px 0 0;
            font-size: 14px;
        }
        .faq-list {
            max-width: 900px;
        }
        .faq-item {
            border-bottom: 1px solid var(--border);
        }
        .faq-item:last-child {
            border-bottom: none;
        }
        .faq-item summary {
            list-style: none;
            display: flex;
            align-items: center;
            gap: 14px;
            padding: 19px 8px;
            font-size: 15px;
            font-weight: 700;
            color: var(--text);
            cursor: pointer;
            transition: color var(--ease);
        }
        .faq-item summary::-webkit-details-marker {
            display: none;
        }
        .faq-item summary:hover {
            color: var(--primary);
        }
        .faq-icon {
            width: 26px;
            height: 26px;
            border-radius: 8px;
            background: var(--soft-blue);
            color: var(--primary);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
            font-size: 14px;
        }
        .faq-answer {
            padding: 0 8px 20px 48px;
            font-size: 15px;
            color: var(--muted);
            line-height: 1.8;
            max-width: 780px;
        }
        .cta-card {
            position: relative;
            border-radius: 24px;
            overflow: hidden;
            background: linear-gradient(120deg, rgba(15, 23, 42, 0.94), rgba(30, 58, 138, 0.94)),
                url("/assets/images/backpic/back-2.png") center/cover;
            padding: 58px 48px;
            color: #fff;
            text-align: center;
            margin: 54px 0 0;
        }
        .cta-card::before {
            content: "";
            position: absolute;
            right: -40px;
            bottom: -30px;
            width: 220px;
            height: 220px;
            border-radius: 50%;
            border: 44px solid rgba(255, 255, 255, 0.04);
            pointer-events: none;
        }
        .cta-card h2 {
            font-size: clamp(24px, 4vw, 34px);
            font-weight: 800;
            line-height: 1.3;
            margin-bottom: 8px;
        }
        .cta-card p {
            font-size: 15px;
            color: rgba(255, 255, 255, 0.8);
            margin-bottom: 26px;
        }
        .cta-btns {
            display: flex;
            justify-content: center;
            gap: 12px;
            flex-wrap: wrap;
        }
        .site-footer {
            background: #0F172A;
            margin-top: 0;
            padding: 52px 0 24px;
            color: #94A3B8;
        }
        .site-footer .logo-link {
            color: #E2E8F0;
        }
        .footer-title {
            color: #E2E8F0;
            font-size: 14px;
            font-weight: 700;
            margin-bottom: 14px;
        }
        .footer-links {
            display: flex;
            flex-direction: column;
            gap: 9px;
        }
        .footer-links a {
            color: #94A3B8;
            font-size: 13px;
            transition: color var(--ease);
        }
        .footer-links a:hover {
            color: #fff;
        }
        .footer-newsletter {
            display: flex;
            max-width: 260px;
        }
        .footer-newsletter input {
            flex: 1;
            background: #1E293B;
            border: 1px solid #334155;
            color: #E2E8F0;
            height: 38px;
            border-radius: 10px 0 0 10px;
            padding: 0 12px;
            font-size: 13px;
            min-width: 0;
        }
        .footer-newsletter input:focus {
            outline: 2px solid var(--primary);
            outline-offset: 0;
        }
        .footer-newsletter button {
            height: 38px;
            border-radius: 0 10px 10px 0;
        }
        .footer-bottom {
            border-top: 1px solid #1E293B;
            margin-top: 34px;
            padding-top: 18px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 8px;
            font-size: 12px;
            flex-wrap: wrap;
        }
        .footer-bottom a {
            color: #64748B;
            transition: color var(--ease);
        }
        .footer-bottom a:hover {
            color: #E2E8F0;
        }
        .is-loading {
            background: linear-gradient(90deg, #EEF2F7 25%, #F8FAFC 37%, #EEF2F7 63%);
            background-size: 400% 100%;
            animation: skeleton 1.4s ease infinite;
        }
        @keyframes skeleton {
            0% {
                background-position: 100% 50%;
            }
            100% {
                background-position: 0 50%;
            }
        }
        @media (max-width: 1024px) {
            .site-header {
                height: 60px;
            }
            .header-inner {
                height: 60px;
            }
            .category-main {
                padding-top: 34px;
            }
            .stat-column {
                margin-bottom: 18px;
            }
            .heat-chip {
                width: calc(50% - 6px);
            }
        }
        @media (max-width: 800px) {
            .header-inner {
                gap: 8px;
            }
            .main-nav {
                position: fixed;
                top: 60px;
                left: 0;
                right: 0;
                background: #fff;
                padding: 12px 18px 16px;
                box-shadow: 0 14px 30px rgba(15, 23, 42, 0.12);
                border-bottom: 1px solid var(--border);
                transform: translateY(-14px);
                opacity: 0;
                visibility: hidden;
                transition: transform var(--ease), opacity var(--ease), visibility var(--ease);
                margin-left: 0;
                z-index: 99;
            }
            .main-nav.show {
                transform: translateY(0);
                opacity: 1;
                visibility: visible;
            }
            .nav-menu {
                flex-direction: column;
                align-items: stretch;
                gap: 4px;
            }
            .nav-menu a {
                display: block;
                padding: 13px 14px;
                font-size: 15px;
            }
            .nav-menu a.active {
                background: var(--soft-blue);
                color: var(--primary);
            }
            .header-tools {
                margin-left: auto;
            }
            .command-search {
                width: 40px;
                height: 40px;
                padding: 0;
                justify-content: center;
            }
            .command-search input,
            .command-search kbd {
                display: none;
            }
            .command-search:focus-within {
                width: 40px;
                border-color: transparent;
                box-shadow: none;
            }
            .command-search i {
                font-size: 15px;
            }
            .menu-toggle {
                display: inline-flex;
            }
            .icon-btn.header-bell {
                display: none;
            }
            .header-cta.search-cta {
                display: none;
            }
            .hero-visual {
                margin-top: 28px;
            }
            .feature-bundle {
                grid-template-columns: none;
            }
            .category-rail {
                position: static;
                padding: 14px;
            }
            .rail-items {
                flex-direction: row;
                flex-wrap: wrap;
                gap: 6px;
            }
            .rail-item {
                padding: 8px 12px;
                background: #F8FAFC;
            }
            .rail-title {
                display: none;
            }
            .category-rail {
                margin-bottom: 26px;
            }
        }
        @media (max-width: 639px) {
            .container-custom {
                padding: 0 16px;
            }
            .category-hero {
                padding: 36px 0 32px;
            }
            .category-hero h1 {
                font-size: 29px;
            }
            .hero-desc {
                font-size: 15px;
            }
            .hero-metrics {
                gap: 12px 16px;
            }
            .hero-metric strong {
                font-size: 18px;
            }
            .header-cta {
                padding: 0 12px;
                font-size: 13px;
            }
            .section-head {
                flex-direction: column;
                align-items: flex-start;
                gap: 8px;
            }
            .feature-main-body {
                padding: 16px 16px 18px;
            }
            .feature-add-item {
                padding: 14px;
            }
            .mini-thumb {
                flex-basis: 64px;
                width: 64px;
            }
            .rank-main {
                gap: 9px;
            }
            .rank-thumb {
                width: 52px;
                height: 40px;
            }
            .rank-right {
                gap: 8px;
            }
            .heat-chip {
                width: 100%;
            }
            .cta-card {
                padding: 36px 22px;
            }
            .faq-answer {
                padding-left: 0;
            }
            .footer-newsletter {
                max-width: 100%;
            }
            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
            }
        }
        @media (max-width: 400px) {
            .header-cta {
                display: none;
            }
        }

/* roulang page: category3 */
:root {
            --primary: #2563EB;
            --primary-dark: #1D4ED8;
            --primary-deeper: #1E40AF;
            --amber: #F59E0B;
            --green: #10B981;
            --bg: #F8FAFC;
            --card: #FFFFFF;
            --text: #0F172A;
            --text-sub: #475569;
            --muted: #64748B;
            --border: #E2E8F0;
            --radius: 16px;
            --radius-btn: 10px;
            --shadow: 0 1px 3px rgba(15, 23, 42, 0.08), 0 4px 16px rgba(15, 23, 42, 0.06);
            --shadow-hover: 0 8px 24px rgba(15, 23, 42, 0.10);
            --transition: all 0.15s ease-out;
        }
        * {
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            margin: 0;
            font-family: "PingFang SC", "Microsoft YaHei", "Source Han Sans SC", "Noto Sans CJK SC", sans-serif;
            background: var(--bg);
            color: var(--text);
            line-height: 1.75;
            font-size: 15px;
            -webkit-font-smoothing: antialiased;
        }
        a {
            color: var(--primary);
            text-decoration: none;
            transition: var(--transition);
        }
        img {
            display: block;
            max-width: 100%;
        }
        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
        }
        button {
            cursor: pointer;
            border: none;
            background: none;
        }
        ul,
        ol,
        p,
        h1,
        h2,
        h3,
        h4,
        figure {
            margin: 0;
            padding: 0;
        }
        :focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 2px;
        }
        .container-custom {
            width: 100%;
            max-width: 1200px;
            margin-left: auto;
            margin-right: auto;
            padding-left: 24px;
            padding-right: 24px;
        }
        .section-head {
            margin-bottom: 32px;
        }
        .section-head h2 {
            font-size: clamp(26px, 3vw, 34px);
            font-weight: 800;
            line-height: 1.25;
            letter-spacing: -0.02em;
        }
        .section-tag {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: #DBEAFE;
            color: #1D4ED8;
            font-size: 13px;
            font-weight: 700;
            border-radius: 999px;
            padding: 3px 12px;
            margin-bottom: 12px;
        }
        .site-header {
            position: sticky;
            top: 0;
            left: 0;
            z-index: 120;
            background: rgba(255, 255, 255, 0.88);
            backdrop-filter: saturate(160%) blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border-bottom: 1px solid rgba(226, 232, 240, 0.9);
            height: 68px;
        }
        .header-inner {
            position: relative;
            max-width: 1200px;
            margin: 0 auto;
            height: 68px;
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 0 24px;
        }
        .logo-cell {
            display: flex;
            align-items: center;
            flex-shrink: 0;
        }
        .logo-link {
            display: flex;
            align-items: center;
            gap: 10px;
            color: var(--text);
        }
        .logo-mark {
            width: 34px;
            height: 34px;
            background: var(--primary);
            color: #fff;
            border-radius: 9px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 900;
            font-size: 17px;
            box-shadow: 0 4px 10px rgba(37, 99, 235, 0.28);
        }
        .logo-text {
            font-size: 18px;
            font-weight: 800;
            letter-spacing: -0.01em;
        }
        .logo-domain {
            font-size: 11px;
            color: #94A3B8;
            border-left: 1px solid var(--border);
            padding-left: 10px;
            letter-spacing: 0.2px;
        }
        .nav-wrap {
            flex: 1;
            display: flex;
            justify-content: center;
            min-width: 0;
        }
        .nav-menu {
            list-style: none;
            display: flex;
            align-items: center;
            gap: 24px;
            margin: 0;
            padding: 0;
        }
        .nav-menu a {
            position: relative;
            display: block;
            padding: 8px 2px;
            color: #334155;
            font-weight: 500;
            font-size: 15px;
            white-space: nowrap;
        }
        .nav-menu a:hover,
        .nav-menu a.active {
            color: var(--primary);
        }
        .nav-menu a.active {
            font-weight: 700;
        }
        .nav-menu a.active::after {
            content: "";
            position: absolute;
            left: 8px;
            right: 8px;
            bottom: -2px;
            height: 3px;
            background: var(--primary);
            border-radius: 999px;
        }
        .header-actions {
            display: flex;
            align-items: center;
            gap: 8px;
            flex-shrink: 0;
        }
        .header-search {
            display: flex;
            align-items: center;
            gap: 8px;
            width: 200px;
            height: 38px;
            border-radius: 999px;
            background: #F1F5F9;
            border: 1px solid transparent;
            padding: 0 12px 0 14px;
            transition: width 0.2s ease-out, border-color 0.2s ease-out, box-shadow 0.2s ease-out;
        }
        .header-search:focus-within {
            width: 280px;
            background: #fff;
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.12);
        }
        .header-search .search-icon {
            color: #94A3B8;
            font-size: 14px;
            flex-shrink: 0;
        }
        .header-search input {
            flex: 1;
            min-width: 0;
            width: 100%;
            background: transparent;
            border: none;
            outline: none;
            font-size: 14px;
            color: var(--text);
        }
        .header-search input::placeholder {
            color: #94A3B8;
        }
        .search-key {
            font-size: 11px;
            line-height: 1;
            color: #94A3B8;
            background: #fff;
            border: 1px solid #CBD5E1;
            border-radius: 5px;
            padding: 3px 5px;
            flex-shrink: 0;
        }
        .icon-btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 38px;
            height: 38px;
            border-radius: 999px;
            color: var(--muted);
            background: transparent;
            border: 1px solid transparent;
            transition: var(--transition);
        }
        .icon-btn:hover {
            background: #F1F5F9;
            color: var(--text);
        }
        .header-cta {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            height: 40px;
            padding: 0 20px;
            border-radius: var(--radius-btn);
            background: var(--primary);
            color: #fff;
            font-weight: 700;
            font-size: 14px;
            white-space: nowrap;
            transition: var(--transition);
            box-shadow: 0 4px 12px rgba(37, 99, 235, 0.18);
        }
        .header-cta:hover {
            background: var(--primary-dark);
            transform: translateY(-1px);
            box-shadow: 0 8px 18px rgba(37, 99, 235, 0.24);
            color: #fff;
        }
        .nav-toggle {
            display: none;
            width: 38px;
            height: 38px;
            align-items: center;
            justify-content: center;
            border-radius: 999px;
            color: var(--text);
            background: #F1F5F9;
            font-size: 18px;
        }

        .guide-hero {
            position: relative;
            padding: 76px 0 72px;
            background: linear-gradient(180deg, #FFFFFF 0%, #EFF6FF 100%);
            border-bottom: 1px solid var(--border);
            overflow: hidden;
        }
        .guide-hero::before {
            content: "";
            position: absolute;
            width: 480px;
            height: 480px;
            right: -140px;
            top: -180px;
            border-radius: 50%;
            background: rgba(37, 99, 235, 0.08);
            pointer-events: none;
        }
        .guide-hero-grid {
            position: relative;
        }
        .hero-kicker {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: #DBEAFE;
            color: #1D4ED8;
            border-radius: 999px;
            padding: 5px 14px;
            font-size: 13px;
            font-weight: 700;
            margin-bottom: 18px;
        }
        .guide-hero h1 {
            font-size: clamp(32px, 4vw, 50px);
            font-weight: 800;
            line-height: 1.22;
            letter-spacing: -0.03em;
            margin-bottom: 16px;
        }
        .guide-hero h1 .accent {
            color: var(--primary);
        }
        .hero-intro {
            color: var(--text-sub);
            font-size: 17px;
            line-height: 1.8;
            max-width: 560px;
            margin-bottom: 28px;
        }
        .hero-actions {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 14px;
            margin-bottom: 34px;
        }
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 9px;
            height: 46px;
            padding: 0 24px;
            border-radius: var(--radius-btn);
            font-weight: 700;
            font-size: 15px;
            transition: var(--transition);
            white-space: nowrap;
        }
        .btn-primary {
            background: var(--primary);
            color: #fff;
            box-shadow: 0 6px 16px rgba(37, 99, 235, 0.24);
        }
        .btn-primary:hover {
            background: var(--primary-dark);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 10px 22px rgba(37, 99, 235, 0.3);
        }
        .btn-outline {
            background: #fff;
            color: var(--text);
            border: 1px solid #CBD5E1;
        }
        .btn-outline:hover {
            background: #F8FAFC;
            border-color: #94A3B8;
            transform: translateY(-2px);
        }
        .hero-stats {
            display: flex;
            flex-wrap: wrap;
            gap: 24px;
        }
        .hero-stats>div {
            display: flex;
            flex-direction: column;
        }
        .hero-stats strong {
            font-size: 22px;
            font-weight: 800;
            color: var(--text);
            line-height: 1.2;
        }
        .hero-stats span {
            font-size: 13px;
            color: var(--muted);
        }
        .hero-visual-col {
            position: relative;
        }
        .hero-media {
            position: relative;
            max-width: 560px;
            margin-left: auto;
            border-radius: 22px;
            overflow: hidden;
            box-shadow: var(--shadow-hover);
            border: 4px solid #fff;
            background: #fff;
        }
        .hero-media-img {
            width: 100%;
            aspect-ratio: 4 / 3;
            object-fit: cover;
        }
        .hero-tag {
            position: absolute;
            border-radius: 999px;
            background: #fff;
            box-shadow: 0 8px 20px rgba(15, 23, 42, 0.16);
            font-size: 13px;
            font-weight: 700;
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 8px 14px;
        }
        .hero-tag-hot {
            top: 16px;
            left: 16px;
            color: #EA580C;
            background: #FEF3C7;
        }
        .hero-tag-go {
            right: 16px;
            bottom: 16px;
            width: 44px;
            height: 44px;
            padding: 0;
            justify-content: center;
            background: var(--primary);
            color: #fff;
            font-size: 15px;
            box-shadow: 0 8px 18px rgba(37, 99, 235, 0.32);
        }

        .channel-wrap {
            background: var(--bg);
            border-bottom: 1px solid var(--border);
            padding: 12px 0;
        }
        .channel-tabs {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 12px;
        }
        .channel-tabs a {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: #fff;
            border: 1px solid var(--border);
            color: var(--text-sub);
            border-radius: 999px;
            padding: 8px 18px;
            font-size: 14px;
            font-weight: 600;
            box-shadow: 0 1px 2px rgba(15, 23, 42, 0.04);
            transition: var(--transition);
        }
        .channel-tabs a:hover {
            border-color: var(--primary);
            color: var(--primary);
        }
        .channel-tabs a.active {
            background: var(--primary);
            border-color: var(--primary);
            color: #fff;
            box-shadow: 0 6px 14px rgba(37, 99, 235, 0.22);
        }

        .guide-main {
            padding: 56px 0 72px;
        }
        .guide-overview {
            background: #fff;
            border: 1px solid var(--border);
            border-radius: 18px;
            box-shadow: var(--shadow);
            padding: 22px 28px;
            margin-bottom: 34px;
        }
        .guide-overview p {
            font-size: 15px;
            color: var(--text-sub);
            max-width: 920px;
        }
        .guide-overview p strong {
            color: var(--primary);
        }
        .guide-overview .guide-overview-title {
            color: var(--text);
            font-weight: 800;
            font-size: 17px;
            margin-bottom: 4px;
        }
        .guide-sidebar {
            align-self: flex-start;
            position: sticky;
            top: 96px;
            background: #fff;
            border: 1px solid var(--border);
            border-radius: 18px;
            padding: 22px 16px;
            box-shadow: var(--shadow);
        }
        .sidebar-title {
            font-size: 15px;
            font-weight: 800;
            padding: 0 12px 12px;
            margin-bottom: 8px;
            border-bottom: 1px solid var(--border);
            color: var(--text);
        }
        .anchor-list {
            list-style: none;
        }
        .anchor-list li+li {
            margin-top: 4px;
        }
        .anchor-list a {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 11px 12px;
            border-radius: 10px;
            color: var(--text-sub);
            font-size: 14px;
            font-weight: 500;
            transition: var(--transition);
        }
        .anchor-list a span {
            color: var(--primary);
            font-size: 13px;
            font-weight: 800;
            width: 22px;
            flex-shrink: 0;
        }
        .anchor-list a:hover,
        .anchor-list a:focus-visible {
            background: #EFF6FF;
            color: var(--primary);
        }

        .guide-content {
            min-width: 0;
        }
        .guide-chapter {
            background: #fff;
            border: 1px solid var(--border);
            border-radius: 20px;
            box-shadow: var(--shadow);
            padding: 30px 34px;
            scroll-margin-top: 96px;
            transition: box-shadow 0.2s ease-out;
        }
        .guide-chapter:hover {
            box-shadow: var(--shadow-hover);
        }
        .guide-chapter+.guide-chapter {
            margin-top: 26px;
        }
        .chapter-head {
            display: flex;
            align-items: flex-start;
            gap: 14px;
            margin-bottom: 18px;
        }
        .chapter-num {
            flex-shrink: 0;
            width: 48px;
            height: 48px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            border-radius: 14px;
            background: #EFF6FF;
            border: 1px solid #DBEAFE;
            color: var(--primary);
            font-size: 17px;
            font-weight: 800;
        }
        .chapter-head-right {
            min-width: 0;
        }
        .chapter-head h2,
        .chapter-head h3 {
            font-size: 21px;
            font-weight: 800;
            color: var(--text);
            line-height: 1.35;
            margin: 4px 0 2px;
        }
        .chapter-sub {
            color: var(--muted);
            font-size: 14px;
            line-height: 1.7;
            margin-top: 6px;
        }

        .entry-type-list {
            list-style: none;
            margin-top: 10px;
        }
        .entry-type-list li {
            display: flex;
            align-items: flex-start;
            gap: 18px;
            padding: 18px 0;
            border-top: 1px solid #F1F5F9;
        }
        .entry-type-list li:first-child {
            border-top: none;
            padding-top: 6px;
        }
        .entry-type-label {
            width: 120px;
            flex-shrink: 0;
            display: flex;
            flex-direction: column;
            gap: 8px;
        }
        .entry-type-chip {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            background: #F1F5F9;
            color: var(--primary-deeper);
            border: 1px solid #E2E8F0;
            border-radius: 8px;
            font-size: 13px;
            font-weight: 700;
            padding: 7px 10px;
            text-align: center;
        }
        .entry-use {
            font-size: 13px;
            color: var(--green);
            font-weight: 700;
        }
        .entry-type-list p {
            flex: 1;
            font-size: 15px;
            color: var(--text-sub);
            line-height: 1.8;
            min-width: 0;
        }

        .flow-list {
            display: flex;
            align-items: stretch;
            flex-wrap: wrap;
            gap: 18px;
            margin-top: 14px;
        }
        .flow-step {
            flex: 1 1 150px;
            min-width: 130px;
            background: #F8FAFC;
            border: 1px solid var(--border);
            border-radius: 16px;
            padding: 24px 16px 20px;
            position: relative;
            transition: var(--transition);
        }
        .flow-step:hover {
            transform: translateY(-3px);
            border-color: #BFDBFE;
            box-shadow: var(--shadow-hover);
        }
        .flow-step-no {
            position: absolute;
            top: 12px;
            right: 14px;
            font-size: 13px;
            font-weight: 800;
            color: #BFDBFE;
        }
        .flow-icon {
            width: 42px;
            height: 42px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            border-radius: 12px;
            background: #EFF6FF;
            color: var(--primary);
            font-size: 17px;
            margin-bottom: 16px;
        }
        .flow-step h4 {
            font-size: 16px;
            font-weight: 800;
            margin-bottom: 8px;
            line-height: 1.4;
        }
        .flow-step p {
            font-size: 13px;
            color: var(--muted);
            line-height: 1.7;
        }
        .status-list {
            margin-top: 8px;
        }
        .status-item {
            display: flex;
            align-items: flex-start;
            gap: 16px;
            padding: 16px 20px;
            border-radius: 12px;
            border-left: 4px solid var(--border);
            background: #F8FAFC;
            margin-bottom: 12px;
        }
        .status-title {
            flex-shrink: 0;
            min-width: 112px;
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-weight: 800;
            font-size: 14px;
        }
        .status-ok {
            border-left-color: var(--green);
        }
        .status-ok .status-title {
            color: #047857;
        }
        .status-queue {
            border-left-color: var(--amber);
        }
        .status-queue .status-title {
            color: #B45309;
        }
        .status-maintain {
            border-left-color: #94A3B8;
        }
        .status-maintain .status-title {
            color: var(--muted);
        }
        .status-item p {
            font-size: 14px;
            color: var(--text-sub);
            line-height: 1.75;
        }

        .restore-wrap {
            display: grid;
            grid-template-columns: 0.9fr 1.1fr;
            gap: 28px;
            align-items: center;
            margin-top: 12px;
        }
        .restore-image {
            border-radius: 16px;
            overflow: hidden;
            border: 1px solid var(--border);
            box-shadow: var(--shadow);
        }
        .restore-image img {
            width: 100%;
            aspect-ratio: 4 / 3;
            object-fit: cover;
        }
        .restore-steps {
            list-style: none;
            counter-reset: restoreStep;
        }
        .restore-steps li {
            position: relative;
            counter-increment: restoreStep;
            padding: 0 0 18px 46px;
            border-bottom: 1px dashed var(--border);
            margin-bottom: 18px;
        }
        .restore-steps li:last-child {
            padding-bottom: 0;
            border-bottom: none;
            margin-bottom: 0;
        }
        .restore-steps li::before {
            content: counter(restoreStep, decimal-leading-zero);
            position: absolute;
            left: 0;
            top: 2px;
            width: 34px;
            height: 34px;
            display: flex;
            align-items: center;
            justify-content: center;
            background: #EFF6FF;
            border: 1px solid #DBEAFE;
            color: var(--primary);
            border-radius: 10px;
            font-weight: 800;
            font-size: 14px;
        }
        .restore-steps strong {
            display: block;
            font-size: 15px;
            font-weight: 800;
            margin-bottom: 6px;
            color: var(--text);
        }
        .restore-steps p {
            font-size: 14px;
            line-height: 1.75;
            color: var(--text-sub);
        }

        .faq-section {
            padding: 70px 0;
            background: #fff;
            border-top: 1px solid var(--border);
            border-bottom: 1px solid var(--border);
        }
        .faq-container {
            max-width: 920px;
        }
        .faq-list {
            margin-top: 32px;
        }
        .faq-item {
            background: #fff;
            border: 1px solid var(--border);
            border-radius: 16px;
            box-shadow: 0 1px 2px rgba(15, 23, 42, 0.04);
            margin-bottom: 14px;
            overflow: hidden;
            transition: box-shadow 0.15s ease-out;
        }
        .faq-item:hover {
            box-shadow: var(--shadow);
        }
        .faq-item.open {
            border-color: #BFDBFE;
        }
        .faq-question {
            width: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding: 20px 24px;
            text-align: left;
            background: transparent;
            color: var(--text);
            font-size: 16px;
            font-weight: 700;
            line-height: 1.5;
        }
        .faq-question i {
            flex-shrink: 0;
            color: #94A3B8;
            font-size: 14px;
            transition: transform 0.2s ease-out, color 0.2s ease-out;
        }
        .faq-question:hover i,
        .faq-item.open .faq-question i {
            color: var(--primary);
            transform: rotate(45deg);
        }
        .faq-answer {
            display: none;
            padding: 0 24px 22px;
            color: var(--text-sub);
            font-size: 15px;
            line-height: 1.8;
        }
        .faq-answer p+p {
            margin-top: 8px;
        }
        .faq-item.open .faq-answer {
            display: block;
        }

        .cta-section {
            padding: 72px 0;
            background: var(--bg);
        }
        .cta-card {
            position: relative;
            max-width: 1100px;
            margin: 0 auto;
            background: linear-gradient(135deg, #1D4ED8 0%, #2563EB 60%, #3B82F6 100%);
            border-radius: 28px;
            padding: 56px 40px;
            text-align: center;
            color: #fff;
            overflow: hidden;
            box-shadow: 0 18px 42px rgba(37, 99, 235, 0.28);
        }
        .cta-card::before {
            content: "";
            position: absolute;
            width: 260px;
            height: 260px;
            border-radius: 50%;
            left: -80px;
            bottom: -120px;
            background: rgba(255, 255, 255, 0.08);
        }
        .cta-card::after {
            content: "";
            position: absolute;
            width: 180px;
            height: 180px;
            border-radius: 50%;
            right: -40px;
            top: -70px;
            background: rgba(255, 255, 255, 0.1);
        }
        .cta-card h2 {
            font-size: clamp(26px, 3vw, 36px);
            font-weight: 800;
            line-height: 1.3;
            margin-bottom: 12px;
            position: relative;
            z-index: 1;
        }
        .cta-card p {
            color: rgba(255, 255, 255, 0.86);
            max-width: 640px;
            margin: 0 auto 28px;
            font-size: 16px;
            line-height: 1.75;
            position: relative;
            z-index: 1;
        }
        .cta-actions {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 14px;
            position: relative;
            z-index: 1;
        }
        .btn-white {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 9px;
            height: 48px;
            padding: 0 28px;
            border-radius: 999px;
            background: #fff;
            color: var(--primary);
            font-weight: 800;
            font-size: 15px;
            box-shadow: 0 8px 18px rgba(15, 23, 42, 0.16);
            transition: var(--transition);
        }
        .btn-white:hover {
            background: #DBEAFE;
            color: var(--primary-deeper);
            transform: translateY(-2px);
        }
        .btn-ghost {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            height: 48px;
            padding: 0 26px;
            border-radius: 999px;
            background: transparent;
            border: 1px solid rgba(255, 255, 255, 0.55);
            color: #fff;
            font-weight: 700;
            font-size: 15px;
            transition: var(--transition);
        }
        .btn-ghost:hover {
            background: rgba(255, 255, 255, 0.14);
            color: #fff;
            transform: translateY(-2px);
            border-color: #fff;
        }

        .site-footer {
            background: #0F172A;
            color: #94A3B8;
            padding: 52px 0 0;
        }
        .site-footer a {
            color: #94A3B8;
        }
        .site-footer a:hover {
            color: #fff;
        }
        .site-footer .logo-link {
            color: #E2E8F0;
            font-weight: 800;
        }
        .site-footer .footer-title {
            color: #E2E8F0;
            font-size: 15px;
            font-weight: 700;
            margin-bottom: 14px;
        }
        .site-footer .footer-links {
            display: flex;
            flex-direction: column;
            gap: 10px;
        }
        .site-footer .footer-links a {
            color: #94A3B8;
            font-size: 13px;
            line-height: 1.5;
            transition: color 0.15s ease-out;
        }
        .footer-newsletter {
            display: flex;
            gap: 8px;
            margin-top: 2px;
        }
        .footer-newsletter input {
            flex: 1;
            min-width: 0;
            height: 40px;
            border-radius: 10px;
            border: 1px solid #334155;
            background: rgba(255, 255, 255, 0.05);
            color: #E2E8F0;
            padding: 0 14px;
            font-size: 13px;
            outline: none;
        }
        .footer-newsletter input::placeholder {
            color: #64748B;
        }
        .footer-newsletter input:focus {
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.2);
        }
        .footer-newsletter .header-cta {
            height: 40px;
            padding: 0 16px;
            background: var(--primary);
            color: #fff;
            border-radius: 10px;
            font-size: 13px;
        }
        .footer-bottom {
            border-top: 1px solid #1E293B;
            margin-top: 44px;
            padding: 20px 0 26px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            flex-wrap: wrap;
            font-size: 13px;
            color: #64748B;
        }
        .footer-bottom a {
            color: #94A3B8;
        }
        .footer-bottom a:hover {
            color: #fff;
        }

        @media (max-width: 1024px) {
            .nav-wrap {
                position: absolute;
                top: 68px;
                left: 0;
                width: 100%;
                background: #fff;
                border-bottom: 1px solid var(--border);
                box-shadow: 0 16px 30px rgba(15, 23, 42, 0.08);
                max-height: 0;
                overflow: hidden;
                transition: max-height 0.24s ease-out, padding 0.24s ease-out;
            }
            .nav-wrap.open {
                max-height: 420px;
            }
            .nav-menu {
                flex-direction: column;
                align-items: stretch;
                gap: 0;
                padding: 18px 24px 24px;
            }
            .nav-menu a {
                padding: 13px 2px;
                border-bottom: 1px solid #F1F5F9;
                white-space: normal;
            }
            .nav-menu a.active::after {
                content: none;
            }
            .nav-menu a.active {
                background: #EFF6FF;
                border-radius: 10px;
                padding-left: 12px;
                padding-right: 12px;
            }
            .nav-toggle {
                display: inline-flex;
            }
            .header-search {
                width: 46px;
                padding: 0 13px;
                background: #F8FAFC;
                border: 1px solid var(--border);
            }
            .header-search input {
                width: 0;
                opacity: 0;
                flex: 0;
                transition: opacity 0.15s ease-out;
            }
            .header-search .search-key {
                display: none;
            }
            .header-search.search-expanded {
                position: absolute;
                top: calc(100% + 8px);
                left: 16px;
                right: 16px;
                width: auto;
                height: 44px;
                background: #fff;
                border: 1px solid var(--primary);
                box-shadow: 0 8px 24px rgba(15, 23, 42, 0.12);
                padding: 0 16px;
                z-index: 12;
            }
            .header-search.search-expanded input {
                width: 100%;
                flex: 1;
                opacity: 1;
                padding: 0 4px;
            }
            .header-search.search-expanded .search-icon {
                color: var(--primary);
            }
            .guide-sidebar {
                display: none;
            }
            .guide-content {
                flex: 0 0 100%;
                max-width: 100%;
            }
            .restore-wrap {
                grid-template-columns: 1fr;
            }
        }

        @media (max-width: 900px) {
            .guide-hero {
                padding: 52px 0 48px;
            }
            .hero-media {
                margin: 42px 0 0;
            }
            .guide-chapter {
                padding: 24px 22px;
            }
            .flow-list {
                display: grid;
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (max-width: 640px) {
            .site-header {
                height: 58px;
            }
            .header-inner {
                height: 58px;
                padding: 0 16px;
            }
            .nav-wrap {
                top: 58px;
            }
            .logo-text {
                font-size: 16px;
            }
            .logo-domain {
                display: none;
            }
            .header-search.search-expanded {
                top: calc(100% + 2px);
                left: 12px;
                right: 12px;
            }
            .header-cta {
                width: 40px;
                padding: 0;
                font-size: 14px;
            }
            .header-cta .cta-text {
                display: none;
            }
            .icon-btn {
                width: 34px;
                height: 34px;
            }
            .guide-section,
            .guide-chapter {
                padding: 22px 18px;
            }
            .hero-stats {
                gap: 18px;
            }
            .entry-type-list li {
                flex-direction: column;
                gap: 12px;
            }
            .entry-type-label {
                width: 100%;
                flex-direction: row;
                align-items: center;
            }
            .flow-list {
                grid-template-columns: 1fr;
            }
            .status-item {
                flex-direction: column;
                gap: 8px;
            }
            .status-title {
                min-width: 0;
            }
            .chapter-head {
                flex-direction: column;
            }
            .cta-card {
                padding: 40px 22px;
                border-radius: 22px;
            }
            .cta-actions {
                flex-direction: column;
            }
            .btn-white,
            .btn-ghost {
                width: 100%;
            }
            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
            }
        }

        @media (max-width: 480px) {
            .hero-stats>div {
                width: 30%;
            }
            .hero-stats strong {
                font-size: 18px;
            }
            .header-actions {
                gap: 4px;
            }
            .container-custom {
                padding-left: 14px;
                padding-right: 14px;
            }
        }