/* roulang page: index */
:root {
            --primary-blue: #1e40af;
            --primary-hover: #1d4ed8;
            --accent-cyan: #0284c7;
            --accent-cyan-light: #e0f2fe;
            --text-main: #0f172a;
            --text-muted: #64748b;
            --bg-canvas: #f8fafc;
            --bg-surface: #ffffff;
            --border-subtle: #e2e8f0;
            --shadow-card: 0 10px 30px -5px rgba(15, 23, 42, 0.05), 0 4px 6px -2px rgba(15, 23, 42, 0.02);
            --shadow-hover: 0 20px 35px -5px rgba(30, 64, 175, 0.09), 0 8px 10px -4px rgba(30, 64, 175, 0.04);
            --radius-md: 12px;
            --radius-lg: 16px;
            --radius-xl: 24px;
            --transition-smooth: all 0.25s cubic-bezier(0.16, 1, 0.3, 1);
        }

        body {
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
            background-color: var(--bg-canvas);
            color: var(--text-main);
            line-height: 1.75;
            -webkit-font-smoothing: antialiased;
        }

        /* 顶部导航 */
        .site-header {
            background-color: rgba(255, 255, 255, 0.92);
            backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border-subtle);
            position: sticky;
            top: 0;
            z-index: 1040;
            transition: var(--transition-smooth);
        }

        .navbar-brand {
            font-size: 1.25rem;
            font-weight: 700;
            color: var(--primary-blue) !important;
            display: flex;
            align-items: center;
            gap: 10px;
            letter-spacing: -0.02em;
        }

        .brand-badge {
            width: 38px;
            height: 38px;
            background: linear-gradient(135deg, var(--primary-blue), var(--accent-cyan));
            border-radius: 10px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            box-shadow: 0 4px 10px rgba(30, 64, 175, 0.25);
        }

        .nav-link {
            color: var(--text-main) !important;
            font-weight: 500;
            padding: 8px 16px !important;
            border-radius: 8px;
            transition: var(--transition-smooth);
        }

        .nav-link:hover, .nav-link.active {
            color: var(--primary-blue) !important;
            background-color: rgba(30, 64, 175, 0.05);
        }

        .btn-brand-primary {
            background-color: var(--primary-blue);
            color: #ffffff !important;
            font-weight: 600;
            padding: 9px 22px;
            border-radius: 8px;
            border: 1px solid var(--primary-blue);
            transition: var(--transition-smooth);
            display: inline-flex;
            align-items: center;
            gap: 8px;
            text-decoration: none;
        }

        .btn-brand-primary:hover {
            background-color: var(--primary-hover);
            border-color: var(--primary-hover);
            box-shadow: 0 8px 20px rgba(30, 64, 175, 0.25);
            transform: translateY(-1px);
        }

        .btn-brand-secondary {
            background-color: #ffffff;
            color: var(--primary-blue) !important;
            font-weight: 600;
            padding: 9px 22px;
            border-radius: 8px;
            border: 1px solid var(--border-subtle);
            transition: var(--transition-smooth);
            text-decoration: none;
        }

        .btn-brand-secondary:hover {
            border-color: var(--primary-blue);
            background-color: rgba(30, 64, 175, 0.04);
            transform: translateY(-1px);
        }

        /* 基础区块排版 */
        .content-section {
            padding: clamp(48px, 6vw, 84px) 0;
            position: relative;
        }

        .section-header {
            margin-bottom: 3.5rem;
        }

        .section-tag {
            display: inline-block;
            font-size: 0.8125rem;
            font-weight: 700;
            color: var(--accent-cyan);
            background-color: var(--accent-cyan-light);
            padding: 4px 12px;
            border-radius: 999px;
            text-transform: uppercase;
            letter-spacing: 0.05em;
            margin-bottom: 0.75rem;
        }

        .section-title {
            font-size: clamp(1.65rem, 2.5vw, 2.2rem);
            font-weight: 700;
            color: var(--text-main);
            letter-spacing: -0.02em;
            margin-bottom: 0.75rem;
        }

        .section-desc {
            font-size: 1.05rem;
            color: var(--text-muted);
            max-width: 720px;
            margin: 0 auto;
        }

        /* Hero 竖屏微拟态与首屏 */
        .hero-banner {
            position: relative;
            background: linear-gradient(180deg, #f0f6ff 0%, #f8fafc 100%);
            overflow: hidden;
            border-bottom: 1px solid var(--border-subtle);
        }

        .hero-tagline {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 0.875rem;
            font-weight: 600;
            color: var(--primary-blue);
            background: rgba(30, 64, 175, 0.08);
            padding: 6px 14px;
            border-radius: 30px;
            margin-bottom: 1.25rem;
        }

        .hero-title {
            font-size: clamp(2.2rem, 3.8vw, 3.2rem);
            font-weight: 800;
            color: var(--text-main);
            line-height: 1.25;
            letter-spacing: -0.03em;
            margin-bottom: 1.25rem;
        }

        .hero-lead {
            font-size: 1.125rem;
            color: var(--text-muted);
            margin-bottom: 2rem;
            max-width: 640px;
        }

        .phone-mockup-frame {
            background: #ffffff;
            border-radius: 36px;
            padding: 12px;
            box-shadow: 0 25px 60px -15px rgba(15, 23, 42, 0.25);
            border: 6px solid #1e293b;
            max-width: 320px;
            margin: 0 auto;
            position: relative;
        }

        .phone-mockup-inner {
            border-radius: 26px;
            overflow: hidden;
            position: relative;
            background: #0f172a;
        }

        .phone-mockup-inner img {
            width: 100%;
            height: 480px;
            object-fit: cover;
            display: block;
        }

        .phone-badge-floating {
            position: absolute;
            bottom: 20px;
            left: 15px;
            right: 15px;
            background: rgba(15, 23, 42, 0.85);
            backdrop-filter: blur(8px);
            border-radius: 12px;
            padding: 10px 14px;
            color: #ffffff;
            border: 1px solid rgba(255, 255, 255, 0.15);
        }

        /* 统一卡片体系 */
        .card-custom {
            background-color: var(--bg-surface);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-lg);
            padding: 2rem;
            transition: var(--transition-smooth);
            box-shadow: var(--shadow-card);
            height: 100%;
            display: flex;
            flex-direction: column;
        }

        .card-custom:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
            border-color: rgba(30, 64, 175, 0.2);
        }

        .card-icon-box {
            width: 52px;
            height: 52px;
            border-radius: 12px;
            background-color: rgba(30, 64, 175, 0.08);
            color: var(--primary-blue);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.5rem;
            margin-bottom: 1.25rem;
        }

        .card-title {
            font-size: 1.25rem;
            font-weight: 700;
            color: var(--text-main);
            margin-bottom: 0.75rem;
        }

        .card-desc {
            font-size: 0.95rem;
            color: var(--text-muted);
            line-height: 1.65;
            margin-bottom: 0;
        }

        /* 运行指标板块 */
        .stats-strip {
            background: linear-gradient(135deg, #eff6ff 0%, #dbeafe 100%);
            border-top: 1px solid #bfdbfe;
            border-bottom: 1px solid #bfdbfe;
        }

        .stat-item {
            text-align: center;
            padding: 1.5rem;
        }

        .stat-number {
            font-size: 2.5rem;
            font-weight: 800;
            color: var(--primary-blue);
            letter-spacing: -0.03em;
            line-height: 1.1;
            margin-bottom: 0.5rem;
        }

        .stat-label {
            font-size: 0.9375rem;
            font-weight: 600;
            color: var(--text-main);
            margin-bottom: 0.25rem;
        }

        .stat-caption {
            font-size: 0.8125rem;
            color: var(--text-muted);
        }

        /* 流程步骤 */
        .step-node-card {
            background: #ffffff;
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-lg);
            padding: 2rem 1.5rem;
            position: relative;
            box-shadow: var(--shadow-card);
            transition: var(--transition-smooth);
            height: 100%;
        }

        .step-node-card:hover {
            border-color: var(--accent-cyan);
            transform: translateY(-3px);
        }

        .step-index-badge {
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: var(--primary-blue);
            color: #ffffff;
            font-weight: 700;
            font-size: 1rem;
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 1.25rem;
        }

        /* CMS 列表与画册卡片 */
        .gallery-card {
            background: #ffffff;
            border-radius: var(--radius-lg);
            overflow: hidden;
            border: 1px solid var(--border-subtle);
            box-shadow: var(--shadow-card);
            transition: var(--transition-smooth);
            height: 100%;
            display: flex;
            flex-direction: column;
        }

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

        .gallery-thumb-wrapper {
            position: relative;
            padding-top: 60%;
            background-color: #e2e8f0;
            overflow: hidden;
        }

        .gallery-thumb-wrapper img {
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.4s ease;
        }

        .gallery-card:hover .gallery-thumb-wrapper img {
            transform: scale(1.04);
        }

        .badge-floating-genre {
            position: absolute;
            top: 12px;
            left: 12px;
            background: rgba(15, 23, 42, 0.75);
            color: #ffffff;
            font-size: 0.75rem;
            font-weight: 600;
            padding: 3px 10px;
            border-radius: 6px;
            backdrop-filter: blur(4px);
        }

        .cms-post-item {
            background: #ffffff;
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-md);
            padding: 1.5rem;
            transition: var(--transition-smooth);
            box-shadow: var(--shadow-card);
            height: 100%;
            display: flex;
            flex-direction: column;
            justify-content: space-between;
        }

        .cms-post-item:hover {
            border-color: var(--primary-blue);
            box-shadow: var(--shadow-hover);
            transform: translateY(-3px);
        }

        .cms-meta {
            font-size: 0.8125rem;
            color: var(--text-muted);
            display: flex;
            align-items: center;
            gap: 12px;
            margin-bottom: 0.75rem;
        }

        .cms-title {
            font-size: 1.125rem;
            font-weight: 700;
            line-height: 1.45;
            margin-bottom: 0.75rem;
        }

        .cms-title a {
            color: var(--text-main);
            text-decoration: none;
            transition: var(--transition-smooth);
        }

        .cms-title a:hover {
            color: var(--primary-blue);
        }

        .cms-excerpt {
            font-size: 0.875rem;
            color: var(--text-muted);
            line-height: 1.6;
            margin-bottom: 1.25rem;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .cms-read-link {
            font-size: 0.875rem;
            font-weight: 600;
            color: var(--primary-blue);
            text-decoration: none;
            display: inline-flex;
            align-items: center;
            gap: 4px;
            transition: var(--transition-smooth);
        }

        .cms-read-link:hover {
            color: var(--primary-hover);
            gap: 8px;
        }

        /* 合作矩阵与保障条 */
        .partner-badge-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
            gap: 16px;
        }

        .partner-badge {
            background: #ffffff;
            border: 1px dashed var(--border-subtle);
            border-radius: var(--radius-md);
            padding: 1rem;
            text-align: center;
            font-weight: 600;
            font-size: 0.875rem;
            color: var(--text-muted);
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            min-height: 64px;
        }

        .partner-badge:hover {
            border-color: var(--primary-blue);
            color: var(--primary-blue);
            background-color: #f8fafc;
        }

        .system-status-bar {
            background-color: #f0fdf4;
            border: 1px solid #bbf7d0;
            border-radius: var(--radius-md);
            padding: 1rem 1.5rem;
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            gap: 1rem;
        }

        .status-pill {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 0.875rem;
            font-weight: 600;
            color: #15803d;
        }

        .status-dot {
            width: 8px;
            height: 8px;
            background-color: #22c55e;
            border-radius: 50%;
            display: inline-block;
            box-shadow: 0 0 0 3px rgba(34, 197, 94, 0.2);
        }

        /* 转化区与收口 */
        .final-cta-card {
            background: linear-gradient(135deg, var(--primary-blue) 0%, #0f172a 100%);
            border-radius: var(--radius-xl);
            padding: clamp(32px, 5vw, 64px);
            color: #ffffff;
            position: relative;
            overflow: hidden;
            box-shadow: 0 20px 40px -10px rgba(30, 64, 175, 0.3);
        }

        .final-cta-card::after {
            content: "";
            position: absolute;
            top: -50%;
            right: -20%;
            width: 500px;
            height: 500px;
            background: radial-gradient(circle, rgba(2, 132, 199, 0.25) 0%, rgba(30, 64, 175, 0) 70%);
            pointer-events: none;
        }

        /* FAQ 手风琴美化 */
        .accordion-item {
            background-color: #ffffff;
            border: 1px solid var(--border-subtle) !important;
            border-radius: var(--radius-md) !important;
            margin-bottom: 1rem;
            overflow: hidden;
            box-shadow: var(--shadow-card);
        }

        .accordion-button {
            font-weight: 600;
            font-size: 1.05rem;
            color: var(--text-main);
            padding: 1.25rem 1.5rem;
            background-color: #ffffff;
            box-shadow: none !important;
        }

        .accordion-button:not(.collapsed) {
            color: var(--primary-blue);
            background-color: rgba(30, 64, 175, 0.03);
        }

        .accordion-body {
            font-size: 0.95rem;
            color: var(--text-muted);
            line-height: 1.7;
            padding: 0 1.5rem 1.25rem 1.5rem;
        }

        /* 页脚 */
        .site-footer {
            background-color: #ffffff;
            border-top: 1px solid var(--border-subtle);
            padding: 60px 0 24px 0;
            margin-top: 0;
        }

        .footer-heading {
            font-size: 0.9375rem;
            font-weight: 700;
            color: var(--text-main);
            text-transform: uppercase;
            letter-spacing: 0.05em;
            margin-bottom: 1.25rem;
        }

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

        .footer-links li {
            margin-bottom: 0.75rem;
        }

        .footer-links a {
            color: var(--text-muted);
            text-decoration: none;
            font-size: 0.875rem;
            transition: var(--transition-smooth);
        }

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

        .footer-bottom {
            margin-top: 48px;
            padding-top: 24px;
            border-top: 1px solid var(--border-subtle);
            font-size: 0.8125rem;
            color: var(--text-muted);
        }

        @media (max-width: 991.98px) {
            .navbar-collapse {
                background: #ffffff;
                padding: 1.25rem;
                border-radius: var(--radius-md);
                margin-top: 0.75rem;
                box-shadow: 0 10px 25px rgba(0, 0, 0, 0.08);
                border: 1px solid var(--border-subtle);
            }
        }

/* roulang page: article */
:root {
            --primary-blue: #1e40af;
            --primary-hover: #1d4ed8;
            --accent-cyan: #0284c7;
            --accent-cyan-light: #e0f2fe;
            --text-main: #0f172a;
            --text-muted: #64748b;
            --bg-canvas: #f8fafc;
            --bg-surface: #ffffff;
            --border-subtle: #e2e8f0;
            --shadow-card: 0 10px 30px -5px rgba(15, 23, 42, 0.05), 0 4px 6px -2px rgba(15, 23, 42, 0.02);
            --shadow-hover: 0 20px 35px -5px rgba(30, 64, 175, 0.09), 0 8px 10px -4px rgba(30, 64, 175, 0.04);
            --radius-md: 12px;
            --radius-lg: 16px;
            --radius-xl: 24px;
            --transition-smooth: all 0.25s cubic-bezier(0.16, 1, 0.3, 1);
        }
        body {
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
            background-color: var(--bg-canvas);
            color: var(--text-main);
            line-height: 1.75;
            -webkit-font-smoothing: antialiased;
        }
        .site-header {
            background-color: rgba(255, 255, 255, 0.92);
            backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border-subtle);
            position: sticky;
            top: 0;
            z-index: 1040;
            transition: var(--transition-smooth);
        }
        .navbar-brand {
            font-size: 1.25rem;
            font-weight: 700;
            color: var(--primary-blue) !important;
            display: flex;
            align-items: center;
            gap: 10px;
            letter-spacing: -0.02em;
        }
        .brand-badge {
            width: 38px;
            height: 38px;
            background: linear-gradient(135deg, var(--primary-blue), var(--accent-cyan));
            border-radius: 10px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            box-shadow: 0 4px 10px rgba(30, 64, 175, 0.25);
        }
        .nav-link {
            color: var(--text-main) !important;
            font-weight: 500;
            padding: 8px 16px !important;
            border-radius: 8px;
            transition: var(--transition-smooth);
        }
        .nav-link:hover, .nav-link.active {
            color: var(--primary-blue) !important;
            background-color: rgba(30, 64, 175, 0.05);
        }
        .btn-brand-primary {
            background-color: var(--primary-blue);
            color: #ffffff !important;
            font-weight: 600;
            padding: 9px 22px;
            border-radius: 8px;
            border: 1px solid var(--primary-blue);
            transition: var(--transition-smooth);
            display: inline-flex;
            align-items: center;
            gap: 8px;
            text-decoration: none;
        }
        .btn-brand-primary:hover {
            background-color: var(--primary-hover);
            border-color: var(--primary-hover);
            box-shadow: 0 8px 20px rgba(30, 64, 175, 0.25);
            transform: translateY(-1px);
        }
        .btn-brand-secondary {
            background-color: #ffffff;
            color: var(--primary-blue) !important;
            font-weight: 600;
            padding: 9px 22px;
            border-radius: 8px;
            border: 1px solid var(--border-subtle);
            transition: var(--transition-smooth);
            text-decoration: none;
        }
        .btn-brand-secondary:hover {
            border-color: var(--primary-blue);
            background-color: rgba(30, 64, 175, 0.04);
            transform: translateY(-1px);
        }
        .article-hero-section {
            background: linear-gradient(180deg, #f0f6ff 0%, #f8fafc 100%);
            border-bottom: 1px solid var(--border-subtle);
            padding: clamp(36px, 5vw, 64px) 0 32px;
        }
        .article-breadcrumb {
            margin-bottom: 1.5rem;
            font-size: 0.9rem;
        }
        .article-breadcrumb a {
            color: var(--text-muted);
            text-decoration: none;
            transition: var(--transition-smooth);
        }
        .article-breadcrumb a:hover {
            color: var(--primary-blue);
        }
        .article-h1 {
            font-size: clamp(1.85rem, 3.2vw, 2.75rem);
            font-weight: 800;
            color: var(--text-main);
            line-height: 1.35;
            letter-spacing: -0.02em;
            margin-bottom: 1.5rem;
        }
        .article-meta-bar {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 16px;
            color: var(--text-muted);
            font-size: 0.9rem;
            padding-bottom: 1rem;
        }
        .article-meta-item {
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }
        .badge-article-cat {
            background-color: var(--accent-cyan-light);
            color: var(--accent-cyan);
            font-weight: 700;
            font-size: 0.8rem;
            padding: 4px 10px;
            border-radius: 6px;
        }
        .article-lead-box {
            background: linear-gradient(135deg, #eff6ff 0%, #ffffff 100%);
            border: 1px solid #bfdbfe;
            border-left: 5px solid var(--primary-blue);
            border-radius: var(--radius-md);
            padding: 24px 28px;
            margin-bottom: 2.5rem;
            box-shadow: 0 4px 12px rgba(30, 64, 175, 0.03);
        }
        .lead-title {
            font-size: 1rem;
            font-weight: 700;
            color: var(--primary-blue);
            display: flex;
            align-items: center;
            gap: 8px;
            margin-bottom: 8px;
        }
        .lead-text {
            color: #334155;
            font-size: 1.05rem;
            line-height: 1.8;
            margin: 0;
        }
        .article-content-wrapper {
            background-color: var(--bg-surface);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-lg);
            padding: clamp(24px, 4vw, 48px);
            box-shadow: var(--shadow-card);
            margin-bottom: 2rem;
        }
        .article-body-render {
            font-size: 1.1rem;
            line-height: 1.95;
            color: #1e293b;
        }
        .article-body-render p {
            margin-bottom: 1.6rem;
            text-align: justify;
        }
        .article-body-render h2 {
            font-size: 1.55rem;
            font-weight: 700;
            color: var(--text-main);
            margin-top: 2.5rem;
            margin-bottom: 1.25rem;
            padding-left: 14px;
            border-left: 4px solid var(--primary-blue);
            line-height: 1.4;
        }
        .article-body-render h3 {
            font-size: 1.3rem;
            font-weight: 700;
            color: var(--text-main);
            margin-top: 2rem;
            margin-bottom: 1rem;
        }
        .article-body-render ul, .article-body-render ol {
            margin-bottom: 1.6rem;
            padding-left: 1.5rem;
        }
        .article-body-render li {
            margin-bottom: 0.5rem;
        }
        .article-body-render blockquote {
            border-left: 4px solid var(--accent-cyan);
            background: #f1f5f9;
            padding: 16px 20px;
            border-radius: 0 8px 8px 0;
            margin: 1.8rem 0;
            color: #475569;
            font-style: italic;
        }
        .article-body-render img {
            max-width: 100%;
            height: auto;
            border-radius: var(--radius-md);
            margin: 1.8rem auto;
            display: block;
            box-shadow: var(--shadow-card);
        }
        .reading-toolbar-card {
            background-color: var(--bg-surface);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-md);
            padding: 14px 20px;
            margin-bottom: 2rem;
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px;
        }
        .toolbar-group {
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .tool-btn {
            background: #f8fafc;
            border: 1px solid var(--border-subtle);
            border-radius: 6px;
            padding: 6px 12px;
            font-size: 0.875rem;
            color: var(--text-muted);
            cursor: pointer;
            transition: var(--transition-smooth);
            display: inline-flex;
            align-items: center;
            gap: 6px;
            text-decoration: none;
        }
        .tool-btn:hover {
            border-color: var(--primary-blue);
            color: var(--primary-blue);
            background: #eff6ff;
        }
        .article-disclaimer-box {
            background-color: #f8fafc;
            border: 1px dashed #cbd5e1;
            border-radius: var(--radius-md);
            padding: 20px 24px;
            margin-bottom: 2rem;
            font-size: 0.9rem;
            color: var(--text-muted);
        }
        .disclaimer-badge {
            font-weight: 700;
            color: var(--text-main);
            display: flex;
            align-items: center;
            gap: 6px;
            margin-bottom: 6px;
        }
        .post-nav-container {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 16px;
            margin-bottom: 3rem;
        }
        .post-nav-card {
            background: var(--bg-surface);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-md);
            padding: 18px 20px;
            text-decoration: none;
            transition: var(--transition-smooth);
            display: flex;
            flex-direction: column;
            justify-content: space-between;
        }
        .post-nav-card:hover {
            border-color: var(--primary-blue);
            transform: translateY(-2px);
            box-shadow: var(--shadow-card);
        }
        .post-nav-label {
            font-size: 0.8rem;
            font-weight: 600;
            color: var(--accent-cyan);
            margin-bottom: 6px;
            display: flex;
            align-items: center;
            gap: 4px;
        }
        .post-nav-title {
            font-size: 0.95rem;
            font-weight: 600;
            color: var(--text-main);
            line-height: 1.4;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .related-section {
            padding: 2.5rem 0 3.5rem;
            border-top: 1px solid var(--border-subtle);
        }
        .related-card {
            background-color: var(--bg-surface);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: var(--transition-smooth);
            height: 100%;
            display: flex;
            flex-direction: column;
        }
        .related-card:hover {
            border-color: var(--primary-blue);
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
        }
        .related-thumb {
            width: 100%;
            height: 160px;
            object-fit: cover;
            border-bottom: 1px solid var(--border-subtle);
        }
        .related-content {
            padding: 16px 20px;
            display: flex;
            flex-direction: column;
            flex-grow: 1;
        }
        .related-date {
            font-size: 0.8rem;
            color: var(--text-muted);
            margin-bottom: 6px;
        }
        .related-heading {
            font-size: 1.05rem;
            font-weight: 700;
            color: var(--text-main);
            line-height: 1.4;
            margin-bottom: 10px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .related-desc {
            font-size: 0.875rem;
            color: var(--text-muted);
            line-height: 1.6;
            margin-bottom: 14px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .feedback-section {
            background-color: #ffffff;
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-lg);
            padding: clamp(24px, 4vw, 40px);
            box-shadow: var(--shadow-card);
            margin-bottom: 4rem;
        }
        .site-footer {
            background-color: #ffffff;
            border-top: 1px solid var(--border-subtle);
            padding: 60px 0 24px;
        }
        .footer-heading {
            font-size: 1rem;
            font-weight: 700;
            color: var(--text-main);
            margin-bottom: 1.25rem;
            letter-spacing: -0.01em;
        }
        .footer-links {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .footer-links li {
            margin-bottom: 0.75rem;
        }
        .footer-links a {
            color: var(--text-muted);
            text-decoration: none;
            font-size: 0.9rem;
            transition: var(--transition-smooth);
        }
        .footer-links a:hover {
            color: var(--primary-blue);
            padding-left: 4px;
        }
        .footer-bottom {
            margin-top: 48px;
            padding-top: 24px;
            border-top: 1px solid var(--border-subtle);
            font-size: 0.85rem;
            color: var(--text-muted);
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: center;
            gap: 12px;
        }
        @media (max-width: 768px) {
            .post-nav-container {
                grid-template-columns: 1fr;
            }
            .reading-toolbar-card {
                flex-direction: column;
                align-items: flex-start;
            }
        }

/* roulang page: category1 */
:root {
            --primary-blue: #1e40af;
            --primary-hover: #1d4ed8;
            --accent-cyan: #0284c7;
            --accent-cyan-light: #e0f2fe;
            --text-main: #0f172a;
            --text-muted: #64748b;
            --bg-canvas: #f8fafc;
            --bg-surface: #ffffff;
            --border-subtle: #e2e8f0;
            --shadow-card: 0 10px 30px -5px rgba(15, 23, 42, 0.05), 0 4px 6px -2px rgba(15, 23, 42, 0.02);
            --shadow-hover: 0 20px 35px -5px rgba(30, 64, 175, 0.09), 0 8px 10px -4px rgba(30, 64, 175, 0.04);
            --radius-md: 12px;
            --radius-lg: 16px;
            --radius-xl: 24px;
            --transition-smooth: all 0.25s cubic-bezier(0.16, 1, 0.3, 1);
        }
        body {
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
            background-color: var(--bg-canvas);
            color: var(--text-main);
            line-height: 1.75;
            -webkit-font-smoothing: antialiased;
        }
        .site-header {
            background-color: rgba(255, 255, 255, 0.92);
            backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border-subtle);
            position: sticky;
            top: 0;
            z-index: 1040;
            transition: var(--transition-smooth);
        }
        .navbar-brand {
            font-size: 1.25rem;
            font-weight: 700;
            color: var(--primary-blue) !important;
            display: flex;
            align-items: center;
            gap: 10px;
            letter-spacing: -0.02em;
        }
        .brand-badge {
            width: 38px;
            height: 38px;
            background: linear-gradient(135deg, var(--primary-blue), var(--accent-cyan));
            border-radius: 10px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            box-shadow: 0 4px 10px rgba(30, 64, 175, 0.25);
        }
        .nav-link {
            color: var(--text-main) !important;
            font-weight: 500;
            padding: 8px 16px !important;
            border-radius: 8px;
            transition: var(--transition-smooth);
        }
        .nav-link:hover, .nav-link.active {
            color: var(--primary-blue) !important;
            background-color: rgba(30, 64, 175, 0.05);
        }
        .btn-brand-primary {
            background-color: var(--primary-blue);
            color: #ffffff !important;
            font-weight: 600;
            padding: 9px 22px;
            border-radius: 8px;
            border: 1px solid var(--primary-blue);
            transition: var(--transition-smooth);
            display: inline-flex;
            align-items: center;
            gap: 8px;
            text-decoration: none;
        }
        .btn-brand-primary:hover {
            background-color: var(--primary-hover);
            border-color: var(--primary-hover);
            box-shadow: 0 8px 20px rgba(30, 64, 175, 0.25);
            transform: translateY(-1px);
        }
        .btn-brand-secondary {
            background-color: #ffffff;
            color: var(--primary-blue) !important;
            font-weight: 600;
            padding: 9px 22px;
            border-radius: 8px;
            border: 1px solid var(--border-subtle);
            transition: var(--transition-smooth);
            text-decoration: none;
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }
        .btn-brand-secondary:hover {
            border-color: var(--primary-blue);
            background-color: rgba(30, 64, 175, 0.04);
            transform: translateY(-1px);
        }
        .content-section {
            padding: clamp(48px, 6vw, 84px) 0;
            position: relative;
        }
        .section-header {
            margin-bottom: 3.5rem;
        }
        .section-tag {
            display: inline-block;
            font-size: 0.8125rem;
            font-weight: 700;
            color: var(--accent-cyan);
            background-color: var(--accent-cyan-light);
            padding: 4px 12px;
            border-radius: 999px;
            letter-spacing: 0.05em;
            margin-bottom: 0.75rem;
        }
        .section-title {
            font-size: clamp(1.65rem, 2.5vw, 2.2rem);
            font-weight: 700;
            color: var(--text-main);
            letter-spacing: -0.02em;
            margin-bottom: 0.75rem;
        }
        .section-desc {
            font-size: 1.05rem;
            color: var(--text-muted);
            max-width: 720px;
            margin: 0 auto;
        }
        .card-custom {
            background-color: var(--bg-surface);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-card);
            transition: var(--transition-smooth);
            overflow: hidden;
            height: 100%;
        }
        .card-custom:hover {
            border-color: rgba(30, 64, 175, 0.2);
            box-shadow: var(--shadow-hover);
            transform: translateY(-4px);
        }
        .category-hero {
            background: linear-gradient(180deg, #eff6ff 0%, #f8fafc 100%);
            padding: clamp(40px, 5vw, 70px) 0;
            border-bottom: 1px solid var(--border-subtle);
        }
        .breadcrumb-custom {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 0.9rem;
            color: var(--text-muted);
            margin-bottom: 1.25rem;
        }
        .breadcrumb-custom a {
            color: var(--text-muted);
            text-decoration: none;
            transition: var(--transition-smooth);
        }
        .breadcrumb-custom a:hover {
            color: var(--primary-blue);
        }
        .filter-pill-bar {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            background: #ffffff;
            padding: 12px 18px;
            border-radius: var(--radius-md);
            border: 1px solid var(--border-subtle);
            box-shadow: var(--shadow-card);
            margin-top: 2rem;
        }
        .filter-pill {
            display: inline-block;
            padding: 6px 14px;
            border-radius: 6px;
            font-size: 0.875rem;
            font-weight: 500;
            color: var(--text-muted);
            text-decoration: none;
            background: var(--bg-canvas);
            transition: var(--transition-smooth);
        }
        .filter-pill:hover, .filter-pill.active {
            background: var(--primary-blue);
            color: #ffffff;
        }
        .comic-card-cover-wrap {
            position: relative;
            overflow: hidden;
            aspect-ratio: 3 / 4;
            background-color: #e2e8f0;
        }
        .comic-card-cover-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.4s ease;
        }
        .card-custom:hover .comic-card-cover-wrap img {
            transform: scale(1.05);
        }
        .comic-badge-float {
            position: absolute;
            top: 10px;
            left: 10px;
            background: rgba(15, 23, 42, 0.8);
            backdrop-filter: blur(4px);
            color: #ffffff;
            font-size: 0.75rem;
            font-weight: 600;
            padding: 4px 8px;
            border-radius: 4px;
        }
        .comic-badge-status {
            position: absolute;
            top: 10px;
            right: 10px;
            background: var(--accent-cyan);
            color: #ffffff;
            font-size: 0.75rem;
            font-weight: 600;
            padding: 4px 8px;
            border-radius: 4px;
        }
        .rank-item {
            display: flex;
            align-items: center;
            gap: 16px;
            padding: 14px 18px;
            border-radius: var(--radius-md);
            background: #ffffff;
            border: 1px solid var(--border-subtle);
            transition: var(--transition-smooth);
        }
        .rank-item:hover {
            background: #f1f5f9;
            border-color: rgba(30, 64, 175, 0.2);
        }
        .rank-number {
            font-size: 1.25rem;
            font-weight: 800;
            width: 32px;
            height: 32px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 8px;
            background: var(--accent-cyan-light);
            color: var(--primary-blue);
        }
        .rank-number.top1 {
            background: #fee2e2;
            color: #dc2626;
        }
        .rank-number.top2 {
            background: #fef3c7;
            color: #d97706;
        }
        .rank-number.top3 {
            background: #e0f2fe;
            color: #0284c7;
        }
        .accordion-item {
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-md) !important;
            margin-bottom: 12px;
            overflow: hidden;
            background-color: var(--bg-surface);
        }
        .accordion-button {
            font-weight: 600;
            color: var(--text-main);
            background-color: var(--bg-surface);
            box-shadow: none !important;
            padding: 18px 22px;
        }
        .accordion-button:not(.collapsed) {
            color: var(--primary-blue);
            background-color: #f0f7ff;
        }
        .accordion-body {
            color: var(--text-muted);
            line-height: 1.8;
            padding: 20px 22px;
        }
        .site-footer {
            background-color: #ffffff;
            border-top: 1px solid var(--border-subtle);
            padding: 64px 0 24px;
        }
        .footer-heading {
            font-weight: 700;
            color: var(--text-main);
            margin-bottom: 1.25rem;
            font-size: 1rem;
        }
        .footer-links {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .footer-links li {
            margin-bottom: 10px;
        }
        .footer-links a {
            color: var(--text-muted);
            text-decoration: none;
            transition: var(--transition-smooth);
            font-size: 0.9375rem;
        }
        .footer-links a:hover {
            color: var(--primary-blue);
            padding-left: 4px;
        }
        .footer-bottom {
            margin-top: 48px;
            padding-top: 24px;
            border-top: 1px solid var(--border-subtle);
            font-size: 0.875rem;
            color: var(--text-muted);
        }