/* roulang page: index */
:root {
            --primary: #1F2228;
            --primary-dark: #15171C;
            --primary-light: #2A2F36;
            --accent: #D97745;
            --accent-hover: #C5683A;
            --accent-dark: #B05A30;
            --secondary: #4A7C6F;
            --secondary-hover: #3E8E82;
            --bg-warm: #F7F4EE;
            --bg-white: #FFFFFF;
            --bg-card: #FFFFFF;
            --text-primary: #1F2228;
            --text-body: #3A3F46;
            --text-muted: #6B7280;
            --text-light: #9CA3AF;
            --border-light: #E5E0D8;
            --border-mid: #D8D2C8;
            --shadow-sm: 0 1px 3px rgba(31, 34, 40, 0.06);
            --shadow-md: 0 6px 24px rgba(31, 34, 40, 0.08);
            --shadow-lg: 0 16px 48px rgba(31, 34, 40, 0.12);
            --shadow-hover: 0 12px 32px rgba(31, 34, 40, 0.14);
            --radius-sm: 8px;
            --radius-md: 14px;
            --radius-lg: 18px;
            --radius-xl: 24px;
            --font-sans: 'Inter', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', 'Noto Sans SC', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
            --font-mono: 'JetBrains Mono', 'SF Mono', 'Fira Code', 'Cascadia Code', Consolas, 'Courier New', monospace;
            --transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
            --max-width: 1200px;
            --section-space: 88px;
            --section-space-mobile: 56px;
        }

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

        html {
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.7;
            color: var(--text-body);
            background-color: var(--bg-warm);
            margin: 0;
            padding: 0;
            overflow-x: hidden;
        }

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

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

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

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

        .section-padding {
            padding-top: var(--section-space);
            padding-bottom: var(--section-space);
        }

        .section-padding-sm {
            padding-top: 48px;
            padding-bottom: 48px;
        }

        .section-heading {
            margin-bottom: 40px;
        }

        .section-heading h2 {
            font-size: clamp(28px, 3.5vw, 36px);
            font-weight: 800;
            letter-spacing: -0.02em;
            color: var(--text-primary);
            margin-bottom: 12px;
            line-height: 1.25;
        }

        .section-heading p {
            font-size: 16px;
            color: var(--text-muted);
            max-width: 720px;
            line-height: 1.75;
        }

        .section-tag {
            display: inline-block;
            font-size: 13px;
            font-weight: 600;
            letter-spacing: 0.04em;
            color: var(--accent);
            background: rgba(217, 119, 69, 0.1);
            padding: 4px 14px;
            border-radius: 20px;
            margin-bottom: 12px;
        }

        /* ============ 导航 ============ */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: rgba(247, 244, 238, 0.92);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid var(--border-light);
            transition: var(--transition);
        }

        .site-header.scrolled {
            box-shadow: 0 4px 20px rgba(31, 34, 40, 0.08);
            background: rgba(247, 244, 238, 0.97);
        }

        .brand-row {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 12px 0;
            gap: 20px;
        }

        .brand-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-weight: 800;
            font-size: 20px;
            color: var(--text-primary);
            letter-spacing: -0.02em;
        }

        .brand-logo .logo-icon {
            width: 36px;
            height: 36px;
            border-radius: 8px;
            background: linear-gradient(135deg, var(--accent), var(--accent-hover));
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 16px;
            font-weight: 700;
            flex-shrink: 0;
        }

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

        .brand-tools {
            display: flex;
            align-items: center;
            gap: 16px;
        }

        .search-box {
            display: flex;
            align-items: center;
            background: var(--bg-white);
            border: 1px solid var(--border-light);
            border-radius: 24px;
            padding: 6px 14px;
            gap: 8px;
            transition: var(--transition);
            min-width: 200px;
        }

        .search-box:focus-within {
            border-color: var(--accent);
            box-shadow: 0 0 0 2px rgba(217, 119, 69, 0.15);
        }

        .search-box input {
            border: none;
            outline: none;
            background: transparent;
            font-size: 14px;
            color: var(--text-primary);
            flex: 1;
            font-family: var(--font-sans);
        }

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

        .search-box .search-icon {
            color: var(--text-muted);
            font-size: 14px;
        }

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

        .hot-tag {
            font-size: 12px;
            font-weight: 500;
            color: var(--text-muted);
            background: var(--bg-white);
            border: 1px solid var(--border-light);
            border-radius: 16px;
            padding: 3px 10px;
            cursor: pointer;
            transition: var(--transition);
            white-space: nowrap;
        }

        .hot-tag:hover {
            border-color: var(--accent);
            color: var(--accent);
            background: rgba(217, 119, 69, 0.05);
        }

        .nav-channel-row {
            display: flex;
            align-items: center;
            gap: 4px;
            padding: 0 0 10px 0;
            flex-wrap: wrap;
        }

        .nav-channel-link {
            font-size: 14px;
            font-weight: 500;
            color: var(--text-body);
            padding: 6px 14px;
            border-radius: 20px;
            transition: var(--transition);
            white-space: nowrap;
        }

        .nav-channel-link:hover {
            background: rgba(31, 34, 40, 0.06);
            color: var(--text-primary);
        }

        .nav-channel-link.active {
            background: var(--accent);
            color: #fff;
            font-weight: 600;
        }

        .nav-channel-link.active:hover {
            background: var(--accent-hover);
            color: #fff;
        }

        .mobile-toggle {
            display: none;
            background: none;
            border: none;
            font-size: 24px;
            color: var(--text-primary);
            cursor: pointer;
            padding: 4px;
        }

        .mobile-menu-panel {
            display: none;
            background: var(--bg-white);
            border-top: 1px solid var(--border-light);
            padding: 16px 24px;
            gap: 8px;
            flex-direction: column;
        }

        .mobile-menu-panel.is-open {
            display: flex;
        }

        /* ============ Hero / 指标看板 ============ */
        .hero-dashboard {
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 60%, var(--primary-light) 100%);
            padding: 80px 0 88px;
            color: #fff;
            position: relative;
            overflow: hidden;
        }

        .hero-dashboard::before {
            content: '';
            position: absolute;
            top: -50%;
            right: -10%;
            width: 600px;
            height: 600px;
            background: radial-gradient(circle, rgba(217, 119, 69, 0.18) 0%, transparent 70%);
            pointer-events: none;
        }

        .hero-dashboard::after {
            content: '';
            position: absolute;
            bottom: -30%;
            left: -10%;
            width: 500px;
            height: 500px;
            background: radial-gradient(circle, rgba(74, 124, 111, 0.15) 0%, transparent 70%);
            pointer-events: none;
        }

        .hero-dashboard .hero-content {
            position: relative;
            z-index: 2;
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
            align-items: center;
        }

        .hero-dashboard .hero-left h1 {
            font-size: clamp(36px, 5vw, 52px);
            font-weight: 800;
            letter-spacing: -0.03em;
            color: #fff;
            margin-bottom: 20px;
            line-height: 1.15;
        }

        .hero-dashboard .hero-left h1 .highlight {
            color: var(--accent);
            position: relative;
        }

        .hero-dashboard .hero-left .hero-desc {
            font-size: 17px;
            line-height: 1.8;
            color: rgba(255, 255, 255, 0.75);
            max-width: 560px;
            margin-bottom: 28px;
        }

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

        .btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 13px 28px;
            border-radius: 12px;
            font-size: 15px;
            font-weight: 600;
            cursor: pointer;
            transition: var(--transition);
            border: none;
            text-decoration: none;
            font-family: var(--font-sans);
            letter-spacing: 0.01em;
        }

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

        .btn-primary:hover {
            background: var(--accent-hover);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(217, 119, 69, 0.3);
        }

        .btn-secondary {
            background: transparent;
            color: #fff;
            border: 1.5px solid rgba(255, 255, 255, 0.35);
        }

        .btn-secondary:hover {
            border-color: #fff;
            color: #fff;
            background: rgba(255, 255, 255, 0.08);
            transform: translateY(-2px);
        }

        .btn-accent-outline {
            background: transparent;
            color: var(--accent);
            border: 1.5px solid var(--accent);
        }

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

        .btn-dark-outline {
            background: transparent;
            color: var(--text-primary);
            border: 1.5px solid var(--text-primary);
        }

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

        .btn:focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: 3px;
        }

        .btn-secondary:focus-visible {
            outline-color: #fff;
        }

        .hero-console {
            background: rgba(0, 0, 0, 0.35);
            border: 1px solid rgba(255, 255, 255, 0.1);
            border-radius: var(--radius-lg);
            padding: 24px;
            font-family: var(--font-mono);
            font-size: 13px;
            line-height: 1.8;
            color: #c9d1d9;
            position: relative;
            z-index: 2;
            box-shadow: 0 20px 48px rgba(0, 0, 0, 0.3);
            backdrop-filter: blur(8px);
        }

        .hero-console .console-header {
            display: flex;
            gap: 8px;
            margin-bottom: 16px;
            padding-bottom: 12px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        }

        .hero-console .console-dot {
            width: 10px;
            height: 10px;
            border-radius: 50%;
        }

        .hero-console .console-dot.red {
            background: #ff5f56;
        }
        .hero-console .console-dot.yellow {
            background: #ffbd2e;
        }
        .hero-console .console-dot.green {
            background: #27c93f;
        }

        .hero-console .console-line {
            display: flex;
            align-items: flex-start;
            gap: 8px;
        }

        .hero-console .console-prompt {
            color: var(--accent);
            white-space: nowrap;
        }

        .hero-console .console-key {
            color: #79c0ff;
        }
        .hero-console .console-string {
            color: #a5d6a7;
        }
        .hero-console .console-number {
            color: #f8c555;
        }

        .hero-metrics {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 16px;
            margin-top: 28px;
            position: relative;
            z-index: 2;
        }

        .hero-metric-card {
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid rgba(255, 255, 255, 0.1);
            border-radius: var(--radius-md);
            padding: 18px 20px;
            transition: var(--transition);
        }

        .hero-metric-card:hover {
            background: rgba(255, 255, 255, 0.1);
            border-color: rgba(255, 255, 255, 0.2);
            transform: translateY(-4px);
        }

        .hero-metric-card .metric-value {
            font-size: 28px;
            font-weight: 800;
            color: #fff;
            letter-spacing: -0.02em;
            font-family: var(--font-mono);
            line-height: 1.2;
        }

        .hero-metric-card .metric-label {
            font-size: 13px;
            color: rgba(255, 255, 255, 0.6);
            margin-top: 4px;
        }

        /* ============ 品牌介绍 ============ */
        .brand-intro {
            background: var(--bg-white);
            border-bottom: 1px solid var(--border-light);
        }

        .brand-intro .intro-layout {
            display: grid;
            grid-template-columns: 1.1fr 1fr;
            gap: 56px;
            align-items: center;
        }

        .brand-intro .intro-image {
            border-radius: var(--radius-lg);
            overflow: hidden;
            aspect-ratio: 4/3;
            box-shadow: var(--shadow-md);
        }

        .brand-intro .intro-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        .brand-intro .intro-text h2 {
            font-size: clamp(28px, 3vw, 36px);
            font-weight: 800;
            color: var(--text-primary);
            letter-spacing: -0.02em;
            margin-bottom: 16px;
            line-height: 1.25;
        }

        .brand-intro .intro-text p {
            font-size: 16px;
            color: var(--text-body);
            line-height: 1.85;
            margin-bottom: 12px;
        }

        /* ============ 分类入口 ============ */
        .category-grid-section {
            background: var(--bg-warm);
        }

        .category-grid {
            display: grid;
            grid-template-columns: repeat(5, 1fr);
            gap: 16px;
        }

        .category-entry-card {
            background: var(--bg-white);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-md);
            padding: 24px 20px;
            display: flex;
            flex-direction: column;
            align-items: flex-start;
            gap: 8px;
            transition: var(--transition);
            cursor: pointer;
        }

        .category-entry-card:hover {
            border-color: var(--accent);
            box-shadow: var(--shadow-hover);
            transform: translateY(-4px);
        }

        .category-entry-card .cat-icon {
            width: 40px;
            height: 40px;
            border-radius: 10px;
            background: rgba(217, 119, 69, 0.1);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--accent);
            font-size: 18px;
            margin-bottom: 4px;
        }

        .category-entry-card h3 {
            font-size: 16px;
            font-weight: 700;
            color: var(--text-primary);
            margin: 0;
        }

        .category-entry-card p {
            font-size: 13px;
            color: var(--text-muted);
            margin: 0;
            line-height: 1.5;
        }

        /* ============ 服务矩阵 ============ */
        .service-matrix {
            background: var(--bg-white);
            border-top: 1px solid var(--border-light);
            border-bottom: 1px solid var(--border-light);
        }

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

        .service-card {
            background: var(--bg-warm);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-md);
            padding: 28px 24px;
            transition: var(--transition);
        }

        .service-card:hover {
            background: var(--bg-white);
            border-color: var(--accent);
            box-shadow: var(--shadow-hover);
            transform: translateY(-5px);
        }

        .service-card .service-icon {
            width: 48px;
            height: 48px;
            border-radius: 12px;
            background: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--accent);
            font-size: 20px;
            margin-bottom: 16px;
        }

        .service-card h3 {
            font-size: 18px;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 8px;
        }

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

        /* ============ 核心场景 ============ */
        .core-scenarios {
            background: var(--bg-warm);
        }

        .scenario-list {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 24px;
        }

        .scenario-card {
            display: flex;
            gap: 20px;
            background: var(--bg-white);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: var(--transition);
        }

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

        .scenario-card .scenario-img {
            width: 200px;
            flex-shrink: 0;
            aspect-ratio: 3/4;
            overflow: hidden;
        }

        .scenario-card .scenario-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        .scenario-card .scenario-body {
            padding: 22px 20px;
            display: flex;
            flex-direction: column;
            gap: 8px;
        }

        .scenario-card .scenario-body h3 {
            font-size: 18px;
            font-weight: 700;
            color: var(--text-primary);
            margin: 0;
        }

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

        .scenario-card .scenario-body .scenario-tag {
            font-size: 12px;
            font-weight: 600;
            color: var(--secondary);
            background: rgba(74, 124, 111, 0.1);
            padding: 4px 12px;
            border-radius: 14px;
            align-self: flex-start;
        }

        /* ============ 爆款网格 ============ */
        .hot-grid-section {
            background: var(--bg-white);
            border-top: 1px solid var(--border-light);
            border-bottom: 1px solid var(--border-light);
        }

        .hot-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 22px;
        }

        .hot-card {
            background: var(--bg-warm);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: var(--transition);
        }

        .hot-card:hover {
            border-color: var(--accent);
            box-shadow: var(--shadow-hover);
            transform: translateY(-5px);
        }

        .hot-card .hot-img {
            aspect-ratio: 16/9;
            overflow: hidden;
        }

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

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

        .hot-card .hot-body {
            padding: 20px;
        }

        .hot-card .hot-body h3 {
            font-size: 17px;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 6px;
        }

        .hot-card .hot-body p {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.6;
            margin-bottom: 12px;
        }

        .badge {
            display: inline-block;
            font-size: 12px;
            font-weight: 600;
            padding: 4px 12px;
            border-radius: 16px;
            background: rgba(217, 119, 69, 0.1);
            color: var(--accent);
        }

        .badge-green {
            background: rgba(74, 124, 111, 0.1);
            color: var(--secondary);
        }

        /* ============ 结果对比 ============ */
        .result-compare {
            background: var(--bg-warm);
        }

        .compare-table-wrap {
            background: var(--bg-white);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
        }

        .compare-row {
            display: grid;
            grid-template-columns: 1.2fr 1fr 1fr;
            border-bottom: 1px solid var(--border-light);
            transition: var(--transition);
        }

        .compare-row:last-child {
            border-bottom: none;
        }

        .compare-row.header-row {
            background: var(--primary);
            color: #fff;
            font-weight: 700;
            font-size: 15px;
        }

        .compare-row.highlight-row {
            background: rgba(217, 119, 69, 0.06);
            border-left: 3px solid var(--accent);
        }

        .compare-cell {
            padding: 16px 20px;
            font-size: 14px;
            color: var(--text-body);
        }

        .compare-row.header-row .compare-cell {
            color: #fff;
        }

        .compare-cell .cell-label {
            font-weight: 600;
            color: var(--text-primary);
        }

        .compare-row.highlight-row .compare-cell {
            font-weight: 600;
            color: var(--text-primary);
        }

        /* ============ 里程碑 ============ */
        .milestone-section {
            background: var(--bg-white);
            border-top: 1px solid var(--border-light);
            border-bottom: 1px solid var(--border-light);
        }

        .timeline {
            position: relative;
            padding-left: 32px;
        }

        .timeline::before {
            content: '';
            position: absolute;
            left: 8px;
            top: 0;
            bottom: 0;
            width: 2px;
            background: var(--border-mid);
        }

        .timeline-item {
            position: relative;
            padding-bottom: 28px;
            padding-left: 20px;
        }

        .timeline-item:last-child {
            padding-bottom: 0;
        }

        .timeline-item::before {
            content: '';
            position: absolute;
            left: -28px;
            top: 6px;
            width: 12px;
            height: 12px;
            border-radius: 50%;
            background: var(--accent);
            border: 2px solid #fff;
            box-shadow: 0 0 0 3px rgba(217, 119, 69, 0.2);
        }

        .timeline-item .timeline-phase {
            font-size: 13px;
            font-weight: 700;
            color: var(--accent);
            letter-spacing: 0.04em;
            margin-bottom: 4px;
        }

        .timeline-item h3 {
            font-size: 17px;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 6px;
        }

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

        /* ============ 资讯列表 ============ */
        .news-section {
            background: var(--bg-warm);
        }

        .news-list {
            display: flex;
            flex-direction: column;
            gap: 16px;
        }

        .news-item {
            background: var(--bg-white);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-md);
            padding: 20px 24px;
            display: flex;
            align-items: center;
            gap: 20px;
            transition: var(--transition);
        }

        .news-item:hover {
            border-color: var(--accent);
            box-shadow: var(--shadow-md);
            transform: translateY(-2px);
        }

        .news-item .news-date {
            font-family: var(--font-mono);
            font-size: 13px;
            color: var(--text-muted);
            white-space: nowrap;
            min-width: 90px;
        }

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

        .news-item .news-content h3 {
            font-size: 16px;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 4px;
        }

        .news-item .news-content p {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.6;
            margin: 0;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .news-item .news-link {
            flex-shrink: 0;
            font-size: 13px;
            font-weight: 600;
            color: var(--accent);
            white-space: nowrap;
        }

        /* ============ 平台保障 ============ */
        .platform-security {
            background: var(--bg-white);
            border-top: 1px solid var(--border-light);
            border-bottom: 1px solid var(--border-light);
        }

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

        .security-item {
            display: flex;
            flex-direction: column;
            align-items: center;
            text-align: center;
            gap: 10px;
            padding: 28px 18px;
            background: var(--bg-warm);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-md);
            transition: var(--transition);
        }

        .security-item:hover {
            border-color: var(--secondary);
            box-shadow: var(--shadow-sm);
            transform: translateY(-3px);
        }

        .security-item .sec-icon {
            width: 52px;
            height: 52px;
            border-radius: 14px;
            background: rgba(74, 124, 111, 0.1);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--secondary);
            font-size: 22px;
        }

        .security-item h3 {
            font-size: 15px;
            font-weight: 700;
            color: var(--text-primary);
            margin: 0;
        }

        .security-item p {
            font-size: 13px;
            color: var(--text-muted);
            margin: 0;
            line-height: 1.6;
        }

        /* ============ 口碑 ============ */
        .testimonials-section {
            background: var(--bg-warm);
        }

        .testimonial-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 20px;
        }

        .testimonial-card {
            background: var(--bg-white);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-md);
            padding: 24px;
            transition: var(--transition);
        }

        .testimonial-card:hover {
            border-color: var(--accent);
            box-shadow: var(--shadow-sm);
        }

        .testimonial-card .testimonial-text {
            font-size: 14px;
            color: var(--text-body);
            line-height: 1.8;
            margin-bottom: 14px;
            font-style: italic;
            position: relative;
            padding-left: 18px;
        }

        .testimonial-card .testimonial-text::before {
            content: '\201C';
            position: absolute;
            left: 0;
            top: -4px;
            font-size: 28px;
            color: var(--accent);
            font-style: normal;
            font-family: Georgia, serif;
        }

        .testimonial-card .testimonial-author {
            font-size: 13px;
            font-weight: 600;
            color: var(--text-primary);
        }

        .testimonial-card .testimonial-role {
            font-size: 12px;
            color: var(--text-muted);
        }

        /* ============ 快速解答 ============ */
        .quick-answers {
            background: var(--bg-white);
            border-top: 1px solid var(--border-light);
            border-bottom: 1px solid var(--border-light);
        }

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

        .qa-preview-item {
            background: var(--bg-warm);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-md);
            padding: 20px 22px;
            transition: var(--transition);
        }

        .qa-preview-item:hover {
            border-color: var(--accent);
            box-shadow: var(--shadow-sm);
        }

        .qa-preview-item .qa-q {
            font-size: 15px;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 6px;
        }

        .qa-preview-item .qa-a {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.7;
            margin: 0;
        }

        /* ============ FAQ ============ */
        .faq-section {
            background: var(--bg-warm);
        }

        .faq-accordion .accordion-item {
            background: var(--bg-white);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-md);
            margin-bottom: 12px;
            transition: var(--transition);
            overflow: hidden;
        }

        .faq-accordion .accordion-item:hover {
            border-color: var(--border-mid);
        }

        .faq-accordion .accordion-item.is-active {
            border-color: var(--accent);
            box-shadow: var(--shadow-sm);
        }

        .faq-accordion .accordion-title {
            padding: 18px 22px;
            font-size: 16px;
            font-weight: 700;
            color: var(--text-primary);
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            user-select: none;
        }

        .faq-accordion .accordion-title .faq-icon {
            color: var(--accent);
            transition: transform 0.3s ease;
            flex-shrink: 0;
        }

        .faq-accordion .accordion-item.is-active .faq-icon {
            transform: rotate(45deg);
        }

        .faq-accordion .accordion-content {
            padding: 0 22px 18px;
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.75;
            display: none;
        }

        .faq-accordion .accordion-item.is-active .accordion-content {
            display: block;
        }

        /* ============ 转化表单 ============ */
        .conversion-form-section {
            background: var(--primary);
            padding: 72px 0;
        }

        .form-card {
            background: var(--bg-white);
            border-radius: var(--radius-lg);
            padding: 40px 36px;
            max-width: 640px;
            margin: 0 auto;
            box-shadow: var(--shadow-lg);
        }

        .form-card h2 {
            font-size: 28px;
            font-weight: 800;
            color: var(--text-primary);
            letter-spacing: -0.02em;
            margin-bottom: 8px;
        }

        .form-card .form-subtitle {
            font-size: 14px;
            color: var(--text-muted);
            margin-bottom: 24px;
        }

        .form-group {
            margin-bottom: 16px;
        }

        .form-group label {
            display: block;
            font-size: 13px;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 6px;
        }

        .form-group input,
        .form-group select,
        .form-group textarea {
            width: 100%;
            padding: 12px 16px;
            border: 1px solid var(--border-light);
            border-radius: 10px;
            font-size: 15px;
            font-family: var(--font-sans);
            color: var(--text-primary);
            background: var(--bg-warm);
            outline: none;
            transition: var(--transition);
        }

        .form-group input:focus,
        .form-group select:focus,
        .form-group textarea:focus {
            border-color: var(--accent);
            box-shadow: 0 0 0 3px rgba(217, 119, 69, 0.12);
            background: #fff;
        }

        .form-privacy {
            font-size: 12px;
            color: var(--text-light);
            margin-top: 8px;
            line-height: 1.6;
        }

        /* ============ 页脚 ============ */
        .site-footer {
            background: var(--primary-dark);
            color: rgba(255, 255, 255, 0.7);
            padding: 56px 0 0;
            font-size: 14px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr 1fr;
            gap: 40px;
            padding-bottom: 40px;
        }

        .footer-brand .footer-logo {
            font-size: 20px;
            font-weight: 800;
            color: #fff;
            letter-spacing: -0.02em;
            margin-bottom: 10px;
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }

        .footer-brand .footer-logo .logo-icon-sm {
            width: 28px;
            height: 28px;
            border-radius: 6px;
            background: var(--accent);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 12px;
            font-weight: 700;
        }

        .footer-brand p {
            font-size: 13px;
            line-height: 1.7;
            color: rgba(255, 255, 255, 0.55);
            max-width: 300px;
        }

        .footer-column h4 {
            font-size: 15px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 16px;
        }

        .footer-column ul {
            list-style: none;
            padding: 0;
            margin: 0;
            display: flex;
            flex-direction: column;
            gap: 8px;
        }

        .footer-column ul li a {
            font-size: 13px;
            color: rgba(255, 255, 255, 0.6);
            transition: var(--transition);
        }

        .footer-column ul li a:hover {
            color: var(--accent);
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding: 20px 0;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            flex-wrap: wrap;
            font-size: 12px;
            color: rgba(255, 255, 255, 0.45);
        }

        .footer-bottom a {
            color: rgba(255, 255, 255, 0.55);
        }

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

        .footer-bottom .footer-links {
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
        }

        /* ============ 响应式 ============ */
        @media (max-width: 1024px) {
            :root {
                --section-space: 64px;
            }

            .hero-dashboard .hero-content {
                grid-template-columns: 1fr;
                gap: 36px;
            }

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

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

            .category-grid {
                grid-template-columns: repeat(3, 1fr);
            }

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

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

            .brand-intro .intro-layout {
                grid-template-columns: 1fr;
                gap: 32px;
            }

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

        @media (max-width: 768px) {
            :root {
                --section-space: 52px;
            }

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

            .brand-row {
                flex-wrap: wrap;
                gap: 10px;
            }

            .brand-tools {
                flex: 1;
                justify-content: flex-end;
            }

            .search-box {
                display: none;
            }

            .hot-tags {
                display: none;
            }

            .mobile-toggle {
                display: block;
            }

            .nav-channel-row {
                display: none;
            }

            .mobile-menu-panel {
                display: none;
            }

            .mobile-menu-panel.is-open {
                display: flex;
            }

            .mobile-menu-panel .nav-channel-link {
                display: block;
                padding: 10px 14px;
                border-radius: 8px;
            }

            .hero-dashboard {
                padding: 56px 0 60px;
            }

            .hero-dashboard .hero-left h1 {
                font-size: 32px;
            }

            .hero-dashboard .hero-left .hero-desc {
                font-size: 15px;
            }

            .hero-metrics {
                grid-template-columns: 1fr 1fr;
                gap: 10px;
            }

            .hero-metric-card {
                padding: 14px;
            }

            .hero-metric-card .metric-value {
                font-size: 22px;
            }

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

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

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

            .scenario-list {
                grid-template-columns: 1fr;
            }

            .scenario-card {
                flex-direction: column;
            }

            .scenario-card .scenario-img {
                width: 100%;
                aspect-ratio: 16/9;
            }

            .compare-row {
                grid-template-columns: 1fr;
                gap: 0;
            }

            .compare-row.header-row {
                display: none;
            }

            .compare-cell {
                padding: 12px 16px;
                border-bottom: 1px solid var(--border-light);
            }

            .compare-row .compare-cell:last-child {
                border-bottom: none;
            }

            .news-item {
                flex-direction: column;
                align-items: flex-start;
                gap: 8px;
                padding: 16px;
            }

            .news-item .news-date {
                min-width: auto;
            }

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

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

            .qa-preview-grid {
                grid-template-columns: 1fr;
            }

            .form-card {
                padding: 28px 20px;
            }

            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }

            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
                gap: 8px;
            }
        }

        @media (max-width: 520px) {
            :root {
                --section-space: 44px;
            }

            .hero-dashboard .hero-left h1 {
                font-size: 26px;
            }

            .hero-buttons {
                flex-direction: column;
                width: 100%;
            }

            .hero-buttons .btn {
                width: 100%;
                justify-content: center;
            }

            .hero-console {
                padding: 16px;
                font-size: 11px;
            }

            .hero-metrics {
                grid-template-columns: 1fr 1fr;
            }

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

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

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

            .timeline {
                padding-left: 22px;
            }

            .timeline-item::before {
                left: -18px;
                width: 10px;
                height: 10px;
            }

            .section-heading h2 {
                font-size: 22px;
            }
        }

/* roulang page: category3 */
:root {
            --primary: #1F2228;
            --primary-dark: #15171C;
            --primary-light: #2A2F36;
            --accent: #D97745;
            --accent-hover: #C5683A;
            --accent-dark: #B05A30;
            --secondary: #4A7C6F;
            --secondary-hover: #3E8E82;
            --bg-warm: #F7F4EE;
            --bg-white: #FFFFFF;
            --bg-card: #FFFFFF;
            --text-primary: #1F2228;
            --text-body: #3A3F46;
            --text-muted: #6B7280;
            --text-light: #9CA3AF;
            --border-light: #E5E0D8;
            --border-mid: #D8D2C8;
            --shadow-sm: 0 1px 3px rgba(31, 34, 40, 0.06);
            --shadow-md: 0 6px 24px rgba(31, 34, 40, 0.08);
            --shadow-lg: 0 16px 48px rgba(31, 34, 40, 0.12);
            --shadow-hover: 0 12px 32px rgba(31, 34, 40, 0.14);
            --radius-sm: 8px;
            --radius-md: 14px;
            --radius-lg: 18px;
            --radius-xl: 24px;
            --font-sans: 'Inter', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', 'Noto Sans SC', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
            --font-mono: 'JetBrains Mono', 'SF Mono', 'Fira Code', 'Cascadia Code', Consolas, 'Courier New', monospace;
            --transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
            --max-width: 1200px;
            --section-space: 64px;
            --section-space-mobile: 44px;
        }

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

        html {
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.7;
            color: var(--text-body);
            background-color: var(--bg-warm);
            overflow-x: hidden;
        }

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

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

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

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

        .section-padding {
            padding-top: var(--section-space);
            padding-bottom: var(--section-space);
        }

        .section-padding-sm {
            padding-top: 40px;
            padding-bottom: 40px;
        }

        .section-heading {
            margin-bottom: 36px;
        }

        .section-heading h2 {
            font-size: clamp(28px, 3.5vw, 36px);
            font-weight: 800;
            letter-spacing: -0.02em;
            color: var(--text-primary);
            margin-bottom: 12px;
            line-height: 1.25;
        }

        .section-heading p {
            font-size: 16px;
            color: var(--text-muted);
            max-width: 720px;
            line-height: 1.75;
        }

        .section-tag {
            display: inline-block;
            font-size: 13px;
            font-weight: 600;
            letter-spacing: 0.04em;
            color: var(--accent);
            background: rgba(217, 119, 69, 0.1);
            padding: 4px 14px;
            border-radius: 20px;
            margin-bottom: 12px;
        }

        /* ============ 导航 ============ */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: rgba(247, 244, 238, 0.92);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid var(--border-light);
            transition: var(--transition);
        }

        .site-header.scrolled {
            box-shadow: 0 4px 20px rgba(31, 34, 40, 0.08);
            background: rgba(247, 244, 238, 0.97);
        }

        .brand-row {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 12px 0;
            gap: 20px;
            flex-wrap: wrap;
        }

        .brand-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-weight: 800;
            font-size: 20px;
            color: var(--text-primary);
            letter-spacing: -0.02em;
        }

        .brand-logo .logo-icon {
            width: 36px;
            height: 36px;
            border-radius: 8px;
            background: linear-gradient(135deg, var(--accent), var(--accent-hover));
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 16px;
            font-weight: 700;
            flex-shrink: 0;
        }

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

        .brand-tools {
            display: flex;
            align-items: center;
            gap: 16px;
            flex-wrap: wrap;
        }

        .search-box {
            display: flex;
            align-items: center;
            background: var(--bg-white);
            border: 1px solid var(--border-light);
            border-radius: 24px;
            padding: 6px 14px;
            gap: 8px;
            transition: var(--transition);
            min-width: 180px;
        }

        .search-box:focus-within {
            border-color: var(--accent);
            box-shadow: 0 0 0 2px rgba(217, 119, 69, 0.2);
        }

        .search-box input {
            border: none;
            outline: none;
            background: transparent;
            font-size: 14px;
            color: var(--text-body);
            width: 100%;
        }

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

        .search-box i {
            color: var(--text-muted);
            font-size: 14px;
        }

        .hot-tags {
            display: flex;
            gap: 8px;
            flex-wrap: wrap;
        }

        .hot-tag {
            font-size: 12px;
            font-weight: 500;
            color: var(--secondary);
            background: rgba(74, 124, 111, 0.1);
            padding: 4px 10px;
            border-radius: 16px;
            white-space: nowrap;
            transition: var(--transition);
        }

        .hot-tag:hover {
            background: rgba(74, 124, 111, 0.2);
            color: var(--secondary);
        }

        .nav-channel-row {
            display: flex;
            align-items: center;
            gap: 4px;
            padding: 8px 0 12px;
            overflow-x: auto;
            -webkit-overflow-scrolling: touch;
            scrollbar-width: thin;
        }

        .nav-channel-row::-webkit-scrollbar {
            height: 4px;
        }

        .nav-channel-row::-webkit-scrollbar-thumb {
            background: var(--border-mid);
            border-radius: 4px;
        }

        .nav-channel-link {
            display: inline-block;
            padding: 8px 16px;
            font-size: 14px;
            font-weight: 600;
            color: var(--text-body);
            border-radius: 20px;
            white-space: nowrap;
            transition: var(--transition);
            border: 1px solid transparent;
        }

        .nav-channel-link:hover {
            color: var(--accent);
            background: rgba(217, 119, 69, 0.06);
        }

        .nav-channel-link.active {
            color: var(--accent);
            background: rgba(217, 119, 69, 0.12);
            border-color: rgba(217, 119, 69, 0.2);
        }

        /* ============ 面包屑 ============ */
        .breadcrumb-section {
            padding: 16px 0 8px;
        }

        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            color: var(--text-muted);
            flex-wrap: wrap;
        }

        .breadcrumb a {
            color: var(--text-muted);
        }

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

        .breadcrumb .separator {
            color: var(--border-mid);
        }

        .breadcrumb .current {
            color: var(--text-primary);
            font-weight: 600;
        }

        /* ============ 分类头部 ============ */
        .category-header {
            padding: 40px 0 32px;
            background: var(--bg-white);
            border-bottom: 1px solid var(--border-light);
        }

        .category-header h1 {
            font-size: clamp(32px, 4vw, 44px);
            font-weight: 800;
            letter-spacing: -0.02em;
            color: var(--text-primary);
            margin-bottom: 16px;
            line-height: 1.2;
        }

        .category-header .category-desc {
            font-size: 16px;
            color: var(--text-muted);
            max-width: 760px;
            line-height: 1.75;
        }

        /* ============ 列表主体 ============ */
        .article-list-section {
            padding: 48px 0;
        }

        .article-list {
            display: flex;
            flex-direction: column;
            gap: 28px;
        }

        .article-item {
            display: flex;
            gap: 24px;
            background: var(--bg-white);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-lg);
            padding: 20px;
            transition: var(--transition);
            box-shadow: var(--shadow-sm);
        }

        .article-item:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
            border-color: var(--border-mid);
        }

        .article-thumb {
            flex: 0 0 240px;
            border-radius: var(--radius-md);
            overflow: hidden;
            background: #f0ede8;
        }

        .article-thumb img {
            width: 100%;
            height: 160px;
            object-fit: cover;
        }

        .article-content {
            flex: 1;
            display: flex;
            flex-direction: column;
            justify-content: center;
        }

        .article-meta {
            display: flex;
            align-items: center;
            gap: 12px;
            font-size: 13px;
            color: var(--text-muted);
            margin-bottom: 8px;
        }

        .article-meta .article-date {
            font-family: var(--font-mono);
        }

        .article-meta .article-source {
            padding: 2px 10px;
            background: rgba(74, 124, 111, 0.1);
            color: var(--secondary);
            border-radius: 12px;
            font-weight: 500;
        }

        .article-content h3 {
            font-size: 20px;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 8px;
            line-height: 1.4;
        }

        .article-content p {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.7;
            margin-bottom: 12px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .article-link {
            font-size: 14px;
            font-weight: 600;
            color: var(--accent);
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }

        .article-link i {
            font-size: 13px;
        }

        /* ============ 支撑板块 A：精选专题 ============ */
        .special-topic-section {
            background: var(--bg-white);
            padding: 48px 0;
            border-top: 1px solid var(--border-light);
            border-bottom: 1px solid var(--border-light);
        }

        .topic-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }

        .topic-card {
            background: var(--bg-card);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-lg);
            overflow: hidden;
            transition: var(--transition);
            box-shadow: var(--shadow-sm);
            display: flex;
            flex-direction: column;
        }

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

        .topic-card .topic-image {
            height: 160px;
            overflow: hidden;
            background: #f0ede8;
        }

        .topic-card .topic-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        .topic-card .topic-body {
            padding: 20px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }

        .topic-card h3 {
            font-size: 18px;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 8px;
            line-height: 1.4;
        }

        .topic-card p {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.7;
            margin-bottom: 14px;
            flex: 1;
        }

        .topic-card .topic-link {
            font-size: 14px;
            font-weight: 600;
            color: var(--accent);
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }

        /* ============ 支撑板块 B：数据/亮点面板 ============ */
        .stats-panel-section {
            padding: 48px 0;
            background: var(--bg-warm);
        }

        .stats-panel {
            background: var(--primary);
            border-radius: var(--radius-xl);
            padding: 40px;
            color: #fff;
            display: flex;
            flex-wrap: wrap;
            gap: 30px;
            align-items: center;
            justify-content: space-between;
        }

        .stats-panel .stat-item {
            flex: 1;
            min-width: 150px;
            text-align: center;
        }

        .stat-item .stat-number {
            font-size: 40px;
            font-weight: 800;
            font-family: var(--font-mono);
            line-height: 1.2;
            color: var(--accent);
        }

        .stat-item .stat-label {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.8);
            margin-top: 6px;
        }

        /* ============ 支撑板块 C：小型 CTA ============ */
        .mini-cta-section {
            padding: 48px 0;
            background: var(--bg-white);
        }

        .mini-cta {
            background: var(--bg-warm);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-xl);
            padding: 40px 32px;
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            gap: 24px;
        }

        .mini-cta .cta-text h3 {
            font-size: 24px;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 8px;
        }

        .mini-cta .cta-text p {
            font-size: 15px;
            color: var(--text-muted);
            max-width: 520px;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 24px;
            border-radius: 28px;
            font-size: 15px;
            font-weight: 600;
            transition: var(--transition);
            cursor: pointer;
            border: 2px solid transparent;
            outline: none;
        }

        .btn:focus-visible {
            box-shadow: 0 0 0 3px rgba(217, 119, 69, 0.4);
        }

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

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

        .btn-secondary {
            background: transparent;
            color: var(--primary);
            border-color: var(--primary);
        }

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

        /* ============ 支撑板块 D：标签/热词 ============ */
        .tag-cloud-section {
            padding: 48px 0;
            background: var(--bg-warm);
        }

        .tag-cloud {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
        }

        .tag-badge {
            padding: 8px 18px;
            background: var(--bg-white);
            border: 1px solid var(--border-light);
            border-radius: 24px;
            font-size: 14px;
            font-weight: 500;
            color: var(--text-body);
            transition: var(--transition);
            text-decoration: none;
            display: inline-block;
        }

        .tag-badge:hover {
            border-color: var(--accent);
            color: var(--accent);
            transform: translateY(-2px);
        }

        /* ============ 支撑板块 E：FAQ ============ */
        .faq-section {
            padding: 48px 0;
            background: var(--bg-white);
            border-top: 1px solid var(--border-light);
            border-bottom: 1px solid var(--border-light);
        }

        .faq-list {
            max-width: 800px;
            margin: 0 auto;
        }

        .faq-item {
            border: 1px solid var(--border-light);
            border-radius: var(--radius-md);
            margin-bottom: 12px;
            overflow: hidden;
        }

        .faq-question {
            background: var(--bg-white);
            padding: 16px 20px;
            font-size: 16px;
            font-weight: 600;
            color: var(--text-primary);
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: space-between;
            transition: var(--transition);
        }

        .faq-question:hover {
            background: rgba(247, 244, 238, 0.6);
        }

        .faq-question .faq-icon {
            font-size: 18px;
            color: var(--accent);
            transition: var(--transition);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.3s ease, padding 0.3s ease;
            padding: 0 20px;
            background: var(--bg-warm);
            font-size: 15px;
            color: var(--text-body);
            line-height: 1.75;
        }

        .faq-item.active .faq-answer {
            max-height: 300px;
            padding: 16px 20px;
            border-top: 1px solid var(--border-light);
        }

        .faq-item.active .faq-icon {
            transform: rotate(45deg);
        }

        /* ============ 页脚 ============ */
        .site-footer {
            background: var(--primary-dark);
            color: var(--text-light);
            padding: 56px 0 24px;
            margin-top: 0;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 40px;
        }

        .footer-brand .footer-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 20px;
            font-weight: 800;
            color: #fff;
            margin-bottom: 16px;
        }

        .footer-logo .logo-icon-sm {
            width: 32px;
            height: 32px;
            border-radius: 8px;
            background: linear-gradient(135deg, var(--accent), var(--accent-hover));
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 14px;
            font-weight: 700;
        }

        .footer-brand p {
            font-size: 14px;
            line-height: 1.7;
            color: var(--text-light);
            margin-bottom: 16px;
        }

        .footer-column h4 {
            font-size: 15px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 16px;
        }

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

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

        .footer-column a {
            color: var(--text-light);
            font-size: 14px;
            transition: var(--transition);
        }

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

        .footer-bottom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 16px;
            padding-top: 24px;
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            font-size: 14px;
        }

        .footer-bottom a {
            color: var(--text-light);
            margin-left: 20px;
        }

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

        /* ============ 响应式 ============ */
        @media (max-width: 1024px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 32px;
            }
            .article-item {
                flex-direction: column;
            }
            .article-thumb {
                flex: 0 0 auto;
                width: 100%;
            }
            .article-thumb img {
                height: 200px;
            }
            .topic-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (max-width: 768px) {
            .brand-row {
                flex-direction: column;
                align-items: flex-start;
            }
            .brand-tools {
                width: 100%;
                justify-content: space-between;
            }
            .search-box {
                min-width: 140px;
                flex: 1;
            }
            .hot-tags {
                display: none;
            }
            .nav-channel-row {
                padding: 6px 0 10px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 28px;
            }
            .stats-panel {
                padding: 28px 20px;
                flex-direction: column;
                gap: 20px;
            }
            .article-thumb img {
                height: 180px;
            }
            .topic-grid {
                grid-template-columns: 1fr;
            }
            .mini-cta {
                flex-direction: column;
                align-items: flex-start;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding-left: 16px;
                padding-right: 16px;
            }
            .category-header h1 {
                font-size: 28px;
            }
            .section-heading h2 {
                font-size: 26px;
            }
            .article-item {
                padding: 14px;
                gap: 14px;
            }
            .article-content h3 {
                font-size: 18px;
            }
            .stats-panel {
                padding: 24px 16px;
            }
            .stat-item .stat-number {
                font-size: 30px;
            }
            .btn {
                padding: 10px 20px;
                font-size: 14px;
            }
        }

/* roulang page: category1 */
:root {
            --primary: #1F2228;
            --primary-dark: #15171C;
            --primary-light: #2A2F36;
            --accent: #D97745;
            --accent-hover: #C5683A;
            --accent-dark: #B05A30;
            --secondary: #4A7C6F;
            --secondary-hover: #3E8E82;
            --bg-warm: #F7F4EE;
            --bg-white: #FFFFFF;
            --bg-card: #FFFFFF;
            --text-primary: #1F2228;
            --text-body: #3A3F46;
            --text-muted: #6B7280;
            --text-light: #9CA3AF;
            --border-light: #E5E0D8;
            --border-mid: #D8D2C8;
            --shadow-sm: 0 1px 3px rgba(31, 34, 40, 0.06);
            --shadow-md: 0 6px 24px rgba(31, 34, 40, 0.08);
            --shadow-lg: 0 16px 48px rgba(31, 34, 40, 0.12);
            --shadow-hover: 0 12px 32px rgba(31, 34, 40, 0.14);
            --radius-sm: 8px;
            --radius-md: 14px;
            --radius-lg: 18px;
            --radius-xl: 24px;
            --font-sans: 'Inter', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', 'Noto Sans SC', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
            --font-mono: 'JetBrains Mono', 'SF Mono', 'Fira Code', 'Cascadia Code', Consolas, 'Courier New', monospace;
            --transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
            --max-width: 1200px;
            --section-space: 64px;
            --section-space-mobile: 44px;
        }
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }
        body {
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.7;
            color: var(--text-body);
            background-color: var(--bg-warm);
            margin: 0;
            padding: 0;
            overflow-x: hidden;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border: 0;
        }
        a {
            color: var(--accent);
            text-decoration: none;
            transition: var(--transition);
        }
        a:hover {
            color: var(--accent-hover);
        }
        .container {
            max-width: var(--max-width);
            margin: 0 auto;
            padding-left: 24px;
            padding-right: 24px;
        }
        .section-padding {
            padding-top: var(--section-space);
            padding-bottom: var(--section-space);
        }
        .section-padding-sm {
            padding-top: 40px;
            padding-bottom: 40px;
        }
        .section-heading {
            margin-bottom: 32px;
        }
        .section-heading h2 {
            font-size: clamp(26px, 3vw, 34px);
            font-weight: 800;
            letter-spacing: -0.02em;
            color: var(--text-primary);
            margin-bottom: 10px;
            line-height: 1.3;
        }
        .section-heading p {
            font-size: 15px;
            color: var(--text-muted);
            max-width: 720px;
            line-height: 1.75;
            margin-bottom: 0;
        }
        .section-tag {
            display: inline-block;
            font-size: 13px;
            font-weight: 600;
            letter-spacing: 0.04em;
            color: var(--accent);
            background: rgba(217, 119, 69, 0.1);
            padding: 4px 14px;
            border-radius: 20px;
            margin-bottom: 10px;
        }
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: rgba(247, 244, 238, 0.92);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid var(--border-light);
            transition: var(--transition);
        }
        .site-header.scrolled {
            box-shadow: 0 4px 20px rgba(31, 34, 40, 0.08);
            background: rgba(247, 244, 238, 0.97);
        }
        .brand-row {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 10px 0;
            gap: 16px;
            flex-wrap: wrap;
        }
        .brand-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-weight: 800;
            font-size: 20px;
            color: var(--text-primary);
            letter-spacing: -0.02em;
            white-space: nowrap;
        }
        .brand-logo .logo-icon {
            width: 36px;
            height: 36px;
            border-radius: 8px;
            background: linear-gradient(135deg, var(--accent), var(--accent-hover));
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 16px;
            font-weight: 700;
            flex-shrink: 0;
        }
        .brand-logo:hover {
            color: var(--text-primary);
        }
        .brand-tools {
            display: flex;
            align-items: center;
            gap: 14px;
            flex-wrap: wrap;
        }
        .search-box {
            display: flex;
            align-items: center;
            background: var(--bg-white);
            border: 1px solid var(--border-light);
            border-radius: 24px;
            padding: 7px 14px;
            gap: 8px;
            transition: var(--transition);
            min-width: 180px;
            max-width: 240px;
        }
        .search-box:focus-within {
            border-color: var(--accent);
            box-shadow: 0 0 0 3px rgba(217, 119, 69, 0.15);
        }
        .search-box input {
            border: none;
            outline: none;
            background: transparent;
            font-size: 14px;
            color: var(--text-body);
            width: 100%;
            font-family: var(--font-sans);
        }
        .search-box input::placeholder {
            color: var(--text-light);
            font-size: 13px;
        }
        .search-box i {
            color: var(--text-muted);
            font-size: 14px;
            flex-shrink: 0;
        }
        .nav-channel-row {
            display: flex;
            align-items: center;
            gap: 4px;
            padding: 6px 0 10px;
            overflow-x: auto;
            -webkit-overflow-scrolling: touch;
            scrollbar-width: none;
        }
        .nav-channel-row::-webkit-scrollbar {
            display: none;
        }
        .nav-channel-link {
            display: inline-flex;
            align-items: center;
            padding: 7px 16px;
            border-radius: 22px;
            font-size: 14px;
            font-weight: 500;
            color: var(--text-body);
            background: transparent;
            border: 1px solid transparent;
            transition: var(--transition);
            white-space: nowrap;
            flex-shrink: 0;
            letter-spacing: 0.01em;
        }
        .nav-channel-link:hover {
            background: rgba(31, 34, 40, 0.06);
            color: var(--text-primary);
        }
        .nav-channel-link.active {
            background: var(--primary);
            color: #fff;
            border-color: var(--primary);
            font-weight: 600;
        }
        .nav-channel-link.active:hover {
            background: var(--primary-dark);
            color: #fff;
        }
        .hot-tags {
            display: flex;
            align-items: center;
            gap: 6px;
            flex-shrink: 0;
            margin-left: 8px;
        }
        .hot-tag {
            font-size: 12px;
            color: var(--text-muted);
            padding: 3px 10px;
            border-radius: 14px;
            background: rgba(74, 124, 111, 0.08);
            border: 1px solid rgba(74, 124, 111, 0.2);
            white-space: nowrap;
            flex-shrink: 0;
        }
        .breadcrumb-row {
            padding: 14px 0 6px;
        }
        .breadcrumb-nav {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            color: var(--text-muted);
            flex-wrap: wrap;
        }
        .breadcrumb-nav a {
            color: var(--text-muted);
        }
        .breadcrumb-nav a:hover {
            color: var(--accent);
        }
        .breadcrumb-nav .separator {
            color: var(--text-light);
            font-size: 11px;
        }
        .breadcrumb-nav .current {
            color: var(--text-primary);
            font-weight: 600;
        }
        .category-hero {
            background: var(--primary);
            color: #fff;
            padding: 48px 0 44px;
            margin-bottom: 0;
            position: relative;
            overflow: hidden;
        }
        .category-hero::after {
            content: '';
            position: absolute;
            top: 0;
            right: 0;
            width: 380px;
            height: 100%;
            background: linear-gradient(135deg, rgba(217, 119, 69, 0.15), transparent 60%);
            pointer-events: none;
        }
        .category-hero .container {
            position: relative;
            z-index: 1;
        }
        .category-hero h1 {
            font-size: clamp(30px, 4vw, 42px);
            font-weight: 800;
            letter-spacing: -0.02em;
            color: #fff;
            margin-bottom: 12px;
            line-height: 1.25;
        }
        .category-hero .hero-sub {
            font-size: 16px;
            color: rgba(255, 255, 255, 0.85);
            max-width: 680px;
            line-height: 1.8;
            margin-bottom: 0;
        }
        .category-hero .hero-meta {
            display: flex;
            align-items: center;
            gap: 16px;
            margin-top: 18px;
            flex-wrap: wrap;
        }
        .category-hero .hero-meta span {
            font-size: 13px;
            color: rgba(255, 255, 255, 0.75);
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .category-hero .hero-meta i {
            font-size: 12px;
            color: var(--accent);
        }
        .stats-panel {
            background: var(--bg-white);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-md);
            padding: 28px 24px;
            margin-top: -28px;
            position: relative;
            z-index: 5;
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }
        .stats-item {
            text-align: center;
            padding: 8px 12px;
            border-right: 1px solid var(--border-light);
        }
        .stats-item:last-child {
            border-right: none;
        }
        .stats-item .stat-number {
            font-family: var(--font-mono);
            font-size: clamp(28px, 3.5vw, 38px);
            font-weight: 700;
            color: var(--text-primary);
            letter-spacing: -0.03em;
            line-height: 1.2;
        }
        .stats-item .stat-number .stat-suffix {
            font-size: 18px;
            color: var(--accent);
            font-weight: 600;
        }
        .stats-item .stat-label {
            font-size: 13px;
            color: var(--text-muted);
            margin-top: 6px;
            line-height: 1.5;
        }
        .list-section {
            background: var(--bg-warm);
        }
        .training-list {
            display: flex;
            flex-direction: column;
            gap: 18px;
        }
        .training-list-item {
            display: grid;
            grid-template-columns: 56px 180px 1fr;
            gap: 20px;
            background: var(--bg-white);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-lg);
            padding: 20px;
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
            align-items: center;
            position: relative;
        }
        .training-list-item:hover {
            box-shadow: var(--shadow-hover);
            border-color: var(--border-mid);
            transform: translateY(-3px);
        }
        .training-list-item .item-number {
            font-family: var(--font-mono);
            font-size: 22px;
            font-weight: 700;
            color: var(--accent);
            text-align: center;
            flex-shrink: 0;
        }
        .training-list-item .item-thumb {
            width: 180px;
            height: 110px;
            border-radius: var(--radius-md);
            overflow: hidden;
            flex-shrink: 0;
            background: var(--bg-warm);
        }
        .training-list-item .item-thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        .training-list-item .item-content {
            min-width: 0;
        }
        .training-list-item .item-title {
            font-size: 17px;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 6px;
            letter-spacing: -0.01em;
            line-height: 1.4;
        }
        .training-list-item .item-title a {
            color: var(--text-primary);
        }
        .training-list-item .item-title a:hover {
            color: var(--accent);
        }
        .training-list-item .item-summary {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.7;
            margin-bottom: 8px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .training-list-item .item-meta {
            display: flex;
            align-items: center;
            gap: 14px;
            flex-wrap: wrap;
            font-size: 12px;
            color: var(--text-light);
        }
        .training-list-item .item-meta .date {
            display: flex;
            align-items: center;
            gap: 5px;
        }
        .training-list-item .item-meta .tag-badge {
            display: inline-block;
            font-size: 11px;
            padding: 3px 10px;
            border-radius: 12px;
            background: rgba(74, 124, 111, 0.1);
            color: var(--secondary);
            font-weight: 500;
            white-space: nowrap;
        }
        .list-more-wrapper {
            margin-top: 26px;
            text-align: center;
        }
        .btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 11px 26px;
            border-radius: 26px;
            font-size: 14px;
            font-weight: 600;
            letter-spacing: 0.01em;
            border: none;
            cursor: pointer;
            transition: var(--transition);
            font-family: var(--font-sans);
            text-decoration: none;
            line-height: 1.5;
        }
        .btn:focus,
        .btn:focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: 3px;
        }
        .btn-primary {
            background: var(--accent);
            color: #fff;
        }
        .btn-primary:hover {
            background: var(--accent-hover);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 6px 16px rgba(217, 119, 69, 0.35);
        }
        .btn-primary:active {
            transform: translateY(0);
            box-shadow: none;
        }
        .btn-outline {
            background: transparent;
            color: var(--text-primary);
            border: 1.5px solid var(--text-primary);
        }
        .btn-outline:hover {
            background: var(--text-primary);
            color: #fff;
            transform: translateY(-2px);
        }
        .btn-outline:active {
            transform: translateY(0);
        }
        .btn-sm {
            padding: 8px 18px;
            font-size: 13px;
            border-radius: 22px;
        }
        .topic-cards-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }
        .topic-card {
            background: var(--bg-white);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
            display: flex;
            flex-direction: column;
        }
        .topic-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-4px);
            border-color: var(--border-mid);
        }
        .topic-card .topic-img {
            height: 160px;
            overflow: hidden;
            background: var(--bg-warm);
        }
        .topic-card .topic-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: var(--transition);
        }
        .topic-card:hover .topic-img img {
            transform: scale(1.04);
        }
        .topic-card .topic-body {
            padding: 18px 20px 20px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .topic-card .topic-tag {
            font-size: 12px;
            color: var(--secondary);
            font-weight: 600;
            margin-bottom: 8px;
            display: inline-block;
        }
        .topic-card .topic-title {
            font-size: 16px;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 8px;
            line-height: 1.45;
        }
        .topic-card .topic-desc {
            font-size: 13px;
            color: var(--text-muted);
            line-height: 1.7;
            margin-bottom: 14px;
            flex: 1;
        }
        .topic-card .topic-link {
            font-size: 13px;
            font-weight: 600;
            color: var(--accent);
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }
        .topic-card .topic-link i {
            font-size: 11px;
            transition: var(--transition);
        }
        .topic-card .topic-link:hover i {
            transform: translateX(4px);
        }
        .cta-banner {
            background: var(--primary);
            border-radius: var(--radius-lg);
            padding: 36px 32px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 24px;
            flex-wrap: wrap;
            box-shadow: var(--shadow-md);
            position: relative;
            overflow: hidden;
        }
        .cta-banner::before {
            content: '';
            position: absolute;
            top: -60px;
            right: -40px;
            width: 220px;
            height: 220px;
            background: radial-gradient(circle, rgba(217, 119, 69, 0.25), transparent 65%);
            pointer-events: none;
        }
        .cta-banner .cta-text {
            flex: 1;
            min-width: 240px;
            position: relative;
            z-index: 1;
        }
        .cta-banner .cta-text h3 {
            font-size: clamp(20px, 2.5vw, 26px);
            font-weight: 700;
            color: #fff;
            margin-bottom: 8px;
            letter-spacing: -0.01em;
        }
        .cta-banner .cta-text p {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.8);
            line-height: 1.7;
            margin-bottom: 0;
            max-width: 480px;
        }
        .cta-banner .cta-action {
            position: relative;
            z-index: 1;
            flex-shrink: 0;
        }
        .tags-cloud {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
        }
        .tags-cloud .tag-pill {
            display: inline-block;
            font-size: 13px;
            padding: 7px 16px;
            border-radius: 20px;
            background: var(--bg-white);
            color: var(--text-body);
            border: 1px solid var(--border-mid);
            transition: var(--transition);
            font-weight: 500;
            white-space: nowrap;
        }
        .tags-cloud .tag-pill:hover {
            border-color: var(--accent);
            color: var(--accent);
            background: rgba(217, 119, 69, 0.06);
            transform: translateY(-2px);
            box-shadow: var(--shadow-sm);
        }
        .faq-section {
            background: var(--bg-white);
            border-top: 1px solid var(--border-light);
            border-bottom: 1px solid var(--border-light);
        }
        .faq-list {
            max-width: 760px;
            margin: 0 auto;
        }
        .faq-item {
            border-bottom: 1px solid var(--border-light);
            padding: 18px 0;
        }
        .faq-item:last-child {
            border-bottom: none;
        }
        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            cursor: pointer;
            font-size: 16px;
            font-weight: 600;
            color: var(--text-primary);
            padding: 4px 0;
            transition: var(--transition);
            user-select: none;
            background: none;
            border: none;
            width: 100%;
            font-family: var(--font-sans);
            text-align: left;
        }
        .faq-question:hover {
            color: var(--accent);
        }
        .faq-question i {
            font-size: 14px;
            color: var(--text-light);
            transition: var(--transition);
            flex-shrink: 0;
        }
        .faq-item.open .faq-question i {
            transform: rotate(180deg);
            color: var(--accent);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease, padding 0.3s ease;
            font-size: 14px;
            color: var(--text-body);
            line-height: 1.75;
            padding: 0 28px 0 0;
        }
        .faq-item.open .faq-answer {
            max-height: 260px;
            padding: 10px 28px 0 0;
        }
        .site-footer {
            background: var(--primary-dark);
            color: rgba(255, 255, 255, 0.8);
            padding: 48px 0 24px;
            margin-top: 0;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.4fr 1fr 1fr 1fr;
            gap: 32px;
            margin-bottom: 32px;
        }
        .footer-brand .footer-logo {
            display: flex;
            align-items: center;
            gap: 8px;
            font-weight: 700;
            font-size: 18px;
            color: #fff;
            margin-bottom: 12px;
            letter-spacing: -0.01em;
        }
        .footer-brand .footer-logo .logo-icon-sm {
            width: 30px;
            height: 30px;
            border-radius: 7px;
            background: linear-gradient(135deg, var(--accent), var(--accent-hover));
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 14px;
            font-weight: 700;
            flex-shrink: 0;
        }
        .footer-brand p {
            font-size: 13px;
            color: rgba(255, 255, 255, 0.65);
            line-height: 1.75;
            margin-bottom: 0;
            max-width: 320px;
        }
        .footer-column h4 {
            font-size: 14px;
            font-weight: 600;
            color: #fff;
            margin-bottom: 12px;
            letter-spacing: 0.02em;
        }
        .footer-column ul {
            list-style: none;
            margin: 0;
            padding: 0;
        }
        .footer-column ul li {
            margin-bottom: 8px;
        }
        .footer-column ul li a {
            font-size: 13px;
            color: rgba(255, 255, 255, 0.65);
            transition: var(--transition);
        }
        .footer-column ul li a:hover {
            color: var(--accent);
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.15);
            padding-top: 18px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            flex-wrap: wrap;
        }
        .footer-bottom span {
            font-size: 13px;
            color: rgba(255, 255, 255, 0.55);
        }
        .footer-bottom .footer-links {
            display: flex;
            align-items: center;
            gap: 18px;
            flex-wrap: wrap;
        }
        .footer-bottom .footer-links a {
            font-size: 13px;
            color: rgba(255, 255, 255, 0.65);
        }
        .footer-bottom .footer-links a:hover {
            color: var(--accent);
        }
        @media (max-width: 1024px) {
            .training-list-item {
                grid-template-columns: 48px 140px 1fr;
                gap: 16px;
                padding: 16px;
            }
            .training-list-item .item-thumb {
                width: 140px;
                height: 90px;
            }
            .stats-panel {
                grid-template-columns: repeat(2, 1fr);
                gap: 16px;
                padding: 22px 18px;
            }
            .stats-item {
                border-right: none;
                border-bottom: 1px solid var(--border-light);
                padding: 8px 6px;
            }
            .stats-item:nth-child(3),
            .stats-item:nth-child(4) {
                border-bottom: none;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 24px;
            }
        }
        @media (max-width: 768px) {
            .brand-row {
                padding: 8px 0;
            }
            .brand-logo {
                font-size: 18px;
            }
            .brand-logo .logo-icon {
                width: 32px;
                height: 32px;
                font-size: 14px;
            }
            .search-box {
                min-width: 120px;
                max-width: 160px;
                padding: 5px 10px;
            }
            .search-box input {
                font-size: 12px;
            }
            .nav-channel-row {
                padding: 4px 0 8px;
            }
            .nav-channel-link {
                padding: 6px 12px;
                font-size: 13px;
            }
            .hot-tags {
                display: none;
            }
            .category-hero {
                padding: 36px 0 34px;
            }
            .category-hero h1 {
                font-size: clamp(26px, 5vw, 32px);
            }
            .category-hero .hero-sub {
                font-size: 14px;
            }
            .stats-panel {
                grid-template-columns: repeat(2, 1fr);
                gap: 12px;
                padding: 18px 14px;
                margin-top: -20px;
            }
            .stats-item .stat-number {
                font-size: 26px;
            }
            .stats-item .stat-label {
                font-size: 11px;
            }
            .training-list-item {
                grid-template-columns: 40px 1fr;
                gap: 12px;
                padding: 14px;
                align-items: flex-start;
            }
            .training-list-item .item-number {
                font-size: 18px;
                padding-top: 4px;
            }
            .training-list-item .item-thumb {
                width: 100%;
                height: 150px;
                grid-column: 1 / -1;
                order: 2;
            }
            .training-list-item .item-content {
                grid-column: 1 / -1;
                order: 1;
            }
            .topic-cards-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .cta-banner {
                padding: 26px 22px;
                flex-direction: column;
                align-items: flex-start;
                gap: 16px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
                gap: 10px;
            }
        }
        @media (max-width: 520px) {
            .container {
                padding-left: 16px;
                padding-right: 16px;
            }
            .brand-tools .search-box {
                min-width: 90px;
                max-width: 120px;
                padding: 4px 8px;
            }
            .brand-tools .search-box input {
                font-size: 11px;
            }
            .brand-logo {
                font-size: 16px;
                gap: 6px;
            }
            .brand-logo .logo-icon {
                width: 28px;
                height: 28px;
                font-size: 12px;
            }
            .nav-channel-link {
                padding: 5px 10px;
                font-size: 12px;
            }
            .section-padding {
                padding-top: var(--section-space-mobile);
                padding-bottom: var(--section-space-mobile);
            }
            .stats-panel {
                grid-template-columns: 1fr 1fr;
                gap: 8px;
                padding: 14px 10px;
            }
            .stats-item .stat-number {
                font-size: 22px;
            }
            .stats-item .stat-suffix {
                font-size: 14px;
            }
            .training-list-item .item-thumb {
                height: 130px;
            }
            .training-list-item .item-title {
                font-size: 15px;
            }
            .training-list-item .item-summary {
                font-size: 13px;
                -webkit-line-clamp: 3;
            }
            .cta-banner .cta-text h3 {
                font-size: 20px;
            }
            .btn {
                padding: 10px 20px;
                font-size: 13px;
            }
        }

/* roulang page: category2 */
:root {
        --primary: #1F2228;
        --primary-dark: #15171C;
        --primary-light: #2A2F36;
        --accent: #D97745;
        --accent-hover: #C5683A;
        --accent-dark: #B05A30;
        --secondary: #4A7C6F;
        --secondary-hover: #3E8E82;
        --bg-warm: #F7F4EE;
        --bg-white: #FFFFFF;
        --bg-card: #FFFFFF;
        --text-primary: #1F2228;
        --text-body: #3A3F46;
        --text-muted: #6B7280;
        --text-light: #9CA3AF;
        --border-light: #E5E0D8;
        --border-mid: #D8D2C8;
        --shadow-sm: 0 1px 3px rgba(31, 34, 40, 0.06);
        --shadow-md: 0 6px 24px rgba(31, 34, 40, 0.08);
        --shadow-lg: 0 16px 48px rgba(31, 34, 40, 0.12);
        --shadow-hover: 0 12px 32px rgba(31, 34, 40, 0.14);
        --radius-sm: 8px;
        --radius-md: 14px;
        --radius-lg: 18px;
        --radius-xl: 24px;
        --font-sans: 'Inter', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', 'Noto Sans SC', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
        --font-mono: 'JetBrains Mono', 'SF Mono', 'Fira Code', 'Cascadia Code', Consolas, 'Courier New', monospace;
        --transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
        --max-width: 1200px;
        --section-space: 64px;
        --section-space-mobile: 48px;
    }
    
    *,
    *::before,
    *::after {
        box-sizing: border-box;
        margin: 0;
        padding: 0;
    }
    
    html {
        font-size: 16px;
        -webkit-font-smoothing: antialiased;
        -moz-osx-font-smoothing: grayscale;
        scroll-behavior: smooth;
    }
    
    body {
        font-family: var(--font-sans);
        font-size: 16px;
        line-height: 1.7;
        color: var(--text-body);
        background-color: var(--bg-warm);
        overflow-x: hidden;
    }
    
    img {
        max-width: 100%;
        height: auto;
        display: block;
    }
    
    a {
        color: var(--accent);
        text-decoration: none;
        transition: var(--transition);
    }
    
    a:hover {
        color: var(--accent-hover);
    }
    
    a:focus-visible,
    button:focus-visible,
    input:focus-visible {
        outline: 2px solid var(--accent);
        outline-offset: 2px;
    }
    
    .container {
        max-width: var(--max-width);
        margin: 0 auto;
        padding-left: 24px;
        padding-right: 24px;
    }
    
    .section-padding {
        padding-top: var(--section-space);
        padding-bottom: var(--section-space);
    }
    
    .section-padding-sm {
        padding-top: 40px;
        padding-bottom: 40px;
    }
    
    /* ============ 导航 ============ */
    .site-header {
        position: sticky;
        top: 0;
        z-index: 1000;
        background: rgba(247, 244, 238, 0.92);
        backdrop-filter: blur(16px);
        -webkit-backdrop-filter: blur(16px);
        border-bottom: 1px solid var(--border-light);
        transition: var(--transition);
    }
    
    .site-header.scrolled {
        box-shadow: 0 4px 20px rgba(31, 34, 40, 0.08);
        background: rgba(247, 244, 238, 0.97);
    }
    
    .brand-row {
        display: flex;
        align-items: center;
        justify-content: space-between;
        padding: 12px 0;
        gap: 16px;
        flex-wrap: nowrap;
    }
    
    .brand-logo {
        display: flex;
        align-items: center;
        gap: 10px;
        font-weight: 800;
        font-size: 20px;
        color: var(--text-primary);
        letter-spacing: -0.02em;
        flex-shrink: 0;
    }
    
    .brand-logo .logo-icon {
        width: 36px;
        height: 36px;
        border-radius: 8px;
        background: linear-gradient(135deg, var(--accent), var(--accent-hover));
        display: flex;
        align-items: center;
        justify-content: center;
        color: #fff;
        font-size: 16px;
        font-weight: 700;
        flex-shrink: 0;
    }
    
    .brand-logo:hover {
        color: var(--text-primary);
    }
    
    .brand-tools {
        display: flex;
        align-items: center;
        gap: 14px;
        flex-shrink: 0;
    }
    
    .search-box {
        display: flex;
        align-items: center;
        background: var(--bg-white);
        border: 1px solid var(--border-light);
        border-radius: 24px;
        padding: 6px 14px;
        gap: 8px;
        transition: var(--transition);
        min-width: 180px;
    }
    
    .search-box:focus-within {
        border-color: var(--accent);
        box-shadow: 0 0 0 2px rgba(217, 119, 69, 0.15);
    }
    
    .search-box input {
        border: none;
        outline: none;
        background: transparent;
        font-size: 14px;
        color: var(--text-primary);
        width: 100%;
    }
    
    .search-box input::placeholder {
        color: var(--text-light);
    }
    
    .search-box .search-icon {
        color: var(--text-muted);
        font-size: 14px;
    }
    
    .trend-badges {
        display: flex;
        align-items: center;
        gap: 6px;
    }
    
    .trend-badge {
        font-size: 12px;
        font-weight: 500;
        color: var(--text-muted);
        background: rgba(74, 124, 111, 0.08);
        border: 1px solid rgba(74, 124, 111, 0.2);
        padding: 3px 10px;
        border-radius: 16px;
        white-space: nowrap;
        transition: var(--transition);
    }
    
    .trend-badge:hover {
        background: rgba(74, 124, 111, 0.15);
        color: var(--secondary);
        cursor: default;
    }
    
    .nav-toggle {
        display: none;
        background: none;
        border: 1px solid var(--border-light);
        border-radius: 8px;
        padding: 6px 10px;
        font-size: 18px;
        color: var(--text-primary);
        cursor: pointer;
        transition: var(--transition);
    }
    
    .nav-toggle:hover {
        border-color: var(--accent);
        color: var(--accent);
    }
    
    .nav-channel-row {
        display: flex;
        align-items: center;
        gap: 4px;
        padding: 8px 0 12px;
        flex-wrap: wrap;
    }
    
    .nav-channel-link {
        display: inline-flex;
        align-items: center;
        font-size: 14px;
        font-weight: 500;
        color: var(--text-body);
        padding: 8px 16px;
        border-radius: 20px;
        transition: var(--transition);
        white-space: nowrap;
    }
    
    .nav-channel-link:hover {
        background: rgba(31, 34, 40, 0.05);
        color: var(--text-primary);
    }
    
    .nav-channel-link.active {
        background: var(--primary);
        color: #fff;
        font-weight: 600;
    }
    
    .nav-channel-link.active:hover {
        background: var(--primary-light);
        color: #fff;
    }
    
    /* ============ 面包屑 ============ */
    .breadcrumb-section {
        padding: 22px 0 0;
    }
    
    .breadcrumb-ol {
        list-style: none;
        display: flex;
        align-items: center;
        gap: 8px;
        font-size: 13px;
        color: var(--text-muted);
        flex-wrap: wrap;
    }
    
    .breadcrumb-ol li {
        display: flex;
        align-items: center;
        gap: 8px;
    }
    
    .breadcrumb-ol li:not(:last-child)::after {
        content: '/';
        color: var(--text-light);
        font-size: 12px;
    }
    
    .breadcrumb-ol a {
        color: var(--text-muted);
        transition: var(--transition);
    }
    
    .breadcrumb-ol a:hover {
        color: var(--accent);
    }
    
    .breadcrumb-ol .current {
        color: var(--text-primary);
        font-weight: 600;
    }
    
    /* ============ 分类头部 ============ */
    .category-header {
        padding: 32px 0 48px;
    }
    
    .category-header-inner {
        display: flex;
        align-items: flex-start;
        justify-content: space-between;
        gap: 32px;
        flex-wrap: wrap;
    }
    
    .category-header-text h1 {
        font-size: clamp(32px, 4vw, 44px);
        font-weight: 800;
        letter-spacing: -0.02em;
        color: var(--text-primary);
        margin-bottom: 12px;
        line-height: 1.2;
    }
    
    .category-header-text .category-desc {
        font-size: 16px;
        color: var(--text-muted);
        max-width: 640px;
        line-height: 1.75;
    }
    
    .category-header-meta {
        display: flex;
        align-items: center;
        gap: 12px;
        flex-shrink: 0;
        margin-top: 8px;
    }
    
    .category-stat-chip {
        display: flex;
        align-items: center;
        gap: 8px;
        background: var(--bg-white);
        border: 1px solid var(--border-light);
        border-radius: var(--radius-md);
        padding: 10px 16px;
        font-size: 13px;
        color: var(--text-muted);
        box-shadow: var(--shadow-sm);
    }
    
    .category-stat-chip i {
        color: var(--accent);
        font-size: 15px;
    }
    
    /* ============ 新闻卡片网格 ============ */
    .news-grid-section {
        padding-bottom: var(--section-space);
    }
    
    .news-grid {
        display: grid;
        grid-template-columns: repeat(3, 1fr);
        gap: 24px;
    }
    
    .news-card {
        background: var(--bg-card);
        border: 1px solid var(--border-light);
        border-radius: var(--radius-lg);
        overflow: hidden;
        box-shadow: var(--shadow-sm);
        transition: var(--transition);
        display: flex;
        flex-direction: column;
    }
    
    .news-card:hover {
        box-shadow: var(--shadow-hover);
        transform: translateY(-4px);
        border-color: var(--border-mid);
    }
    
    .news-card-image {
        position: relative;
        aspect-ratio: 16 / 9;
        overflow: hidden;
        background: #E5E0D8;
    }
    
    .news-card-image img {
        width: 100%;
        height: 100%;
        object-fit: cover;
        transition: var(--transition);
    }
    
    .news-card:hover .news-card-image img {
        transform: scale(1.04);
    }
    
    .news-card-body {
        padding: 18px 20px 20px;
        display: flex;
        flex-direction: column;
        gap: 10px;
        flex: 1;
    }
    
    .news-card-tag {
        font-size: 12px;
        font-weight: 600;
        color: var(--secondary);
        background: rgba(74, 124, 111, 0.08);
        padding: 2px 10px;
        border-radius: 12px;
        display: inline-block;
        align-self: flex-start;
    }
    
    .news-card-title {
        font-size: 17px;
        font-weight: 700;
        color: var(--text-primary);
        line-height: 1.45;
        letter-spacing: -0.01em;
        margin: 0;
    }
    
    .news-card-summary {
        font-size: 14px;
        color: var(--text-muted);
        line-height: 1.7;
        display: -webkit-box;
        -webkit-line-clamp: 2;
        -webkit-box-orient: vertical;
        overflow: hidden;
        margin: 0;
    }
    
    .news-card-footer {
        display: flex;
        align-items: center;
        justify-content: space-between;
        margin-top: auto;
        padding-top: 12px;
        border-top: 1px solid var(--border-light);
    }
    
    .news-card-date {
        font-size: 12px;
        color: var(--text-light);
    }
    
    .news-card-link {
        font-size: 13px;
        font-weight: 600;
        color: var(--accent);
        transition: var(--transition);
        display: inline-flex;
        align-items: center;
        gap: 4px;
    }
    
    .news-card-link:hover {
        color: var(--accent-hover);
    }
    
    .news-card-link i {
        font-size: 11px;
        transition: var(--transition);
    }
    
    .news-card-link:hover i {
        transform: translateX(3px);
    }
    
    .list-more-row {
        text-align: center;
        margin-top: 32px;
    }
    
    .btn-outline {
        display: inline-flex;
        align-items: center;
        gap: 8px;
        background: transparent;
        border: 1px solid var(--primary);
        color: var(--primary);
        font-size: 14px;
        font-weight: 600;
        padding: 10px 24px;
        border-radius: 24px;
        transition: var(--transition);
        cursor: pointer;
        text-decoration: none;
    }
    
    .btn-outline:hover {
        background: var(--primary);
        color: #fff;
    }
    
    .btn-outline:active {
        transform: translateY(1px);
    }
    
    /* ============ 横向专题 ============ */
    .featured-row-section {
        padding-bottom: var(--section-space);
        background: var(--bg-white);
        border-top: 1px solid var(--border-light);
        border-bottom: 1px solid var(--border-light);
    }
    
    .section-heading {
        margin-bottom: 36px;
    }
    
    .section-heading h2 {
        font-size: clamp(26px, 3vw, 32px);
        font-weight: 800;
        letter-spacing: -0.02em;
        color: var(--text-primary);
        margin-bottom: 10px;
        line-height: 1.25;
    }
    
    .section-heading p {
        font-size: 15px;
        color: var(--text-muted);
        max-width: 680px;
        line-height: 1.7;
    }
    
    .section-tag {
        display: inline-block;
        font-size: 13px;
        font-weight: 600;
        letter-spacing: 0.04em;
        color: var(--accent);
        background: rgba(217, 119, 69, 0.1);
        padding: 4px 14px;
        border-radius: 20px;
        margin-bottom: 10px;
    }
    
    .featured-row-grid {
        display: flex;
        flex-direction: column;
        gap: 16px;
    }
    
    .featured-row-card {
        display: flex;
        align-items: center;
        gap: 20px;
        background: var(--bg-warm);
        border: 1px solid var(--border-light);
        border-radius: var(--radius-lg);
        padding: 16px 20px;
        transition: var(--transition);
    }
    
    .featured-row-card:hover {
        box-shadow: var(--shadow-md);
        border-color: var(--border-mid);
        transform: translateX(4px);
    }
    
    .featured-row-image {
        width: 120px;
        height: 80px;
        border-radius: var(--radius-md);
        overflow: hidden;
        flex-shrink: 0;
        background: #E5E0D8;
    }
    
    .featured-row-image img {
        width: 100%;
        height: 100%;
        object-fit: cover;
    }
    
    .featured-row-content {
        flex: 1;
    }
    
    .featured-row-title {
        font-size: 16px;
        font-weight: 700;
        color: var(--text-primary);
        margin-bottom: 4px;
        line-height: 1.4;
    }
    
    .featured-row-desc {
        font-size: 13px;
        color: var(--text-muted);
        line-height: 1.6;
    }
    
    .featured-row-badge {
        flex-shrink: 0;
        font-size: 12px;
        font-weight: 600;
        color: var(--accent);
        background: rgba(217, 119, 69, 0.08);
        padding: 4px 12px;
        border-radius: 16px;
        white-space: nowrap;
    }
    
    /* ============ 数据面板 ============ */
    .data-panel-section {
        padding-bottom: var(--section-space);
    }
    
    .data-panel {
        background: var(--primary);
        border-radius: var(--radius-xl);
        padding: 36px 40px;
        display: flex;
        align-items: center;
        justify-content: space-between;
        gap: 24px;
        flex-wrap: wrap;
    }
    
    .data-panel-intro {
        max-width: 300px;
    }
    
    .data-panel-intro h2 {
        font-size: 24px;
        font-weight: 800;
        color: #fff;
        margin-bottom: 8px;
        letter-spacing: -0.01em;
    }
    
    .data-panel-intro p {
        font-size: 14px;
        color: rgba(255, 255, 255, 0.7);
        line-height: 1.6;
    }
    
    .data-panel-stats {
        display: flex;
        gap: 28px;
        flex-wrap: wrap;
    }
    
    .data-stat-item {
        text-align: center;
        min-width: 80px;
    }
    
    .data-stat-number {
        font-family: var(--font-mono);
        font-size: 32px;
        font-weight: 800;
        color: var(--accent);
        line-height: 1.2;
    }
    
    .data-stat-label {
        font-size: 12px;
        color: rgba(255, 255, 255, 0.65);
        margin-top: 4px;
    }
    
    /* ============ 标签云 ============ */
    .tag-cloud-section {
        padding-bottom: var(--section-space);
    }
    
    .tag-cloud-wrap {
        display: flex;
        flex-wrap: wrap;
        gap: 10px;
    }
    
    .tag-cloud-badge {
        display: inline-flex;
        align-items: center;
        gap: 6px;
        font-size: 13px;
        font-weight: 500;
        color: var(--text-body);
        background: var(--bg-card);
        border: 1px solid var(--border-light);
        padding: 8px 16px;
        border-radius: 20px;
        transition: var(--transition);
        cursor: default;
    }
    
    .tag-cloud-badge:hover {
        border-color: var(--accent);
        color: var(--accent);
        box-shadow: var(--shadow-sm);
    }
    
    .tag-cloud-badge i {
        font-size: 11px;
        color: var(--text-light);
    }
    
    /* ============ FAQ ============ */
    .faq-section {
        padding-bottom: var(--section-space);
        background: var(--bg-white);
        border-top: 1px solid var(--border-light);
        border-bottom: 1px solid var(--border-light);
    }
    
    .faq-list {
        max-width: 720px;
        margin-top: 20px;
    }
    
    .faq-item {
        border: 1px solid var(--border-light);
        border-radius: var(--radius-md);
        margin-bottom: 12px;
        background: var(--bg-warm);
        overflow: hidden;
        transition: var(--transition);
    }
    
    .faq-item:hover {
        box-shadow: var(--shadow-sm);
    }
    
    .faq-question {
        display: flex;
        align-items: center;
        justify-content: space-between;
        gap: 16px;
        padding: 16px 20px;
        cursor: pointer;
        font-size: 15px;
        font-weight: 600;
        color: var(--text-primary);
        transition: var(--transition);
        user-select: none;
    }
    
    .faq-question:hover {
        color: var(--accent);
    }
    
    .faq-question .faq-toggle-icon {
        flex-shrink: 0;
        font-size: 13px;
        color: var(--text-muted);
        transition: var(--transition);
    }
    
    .faq-item.open .faq-question .faq-toggle-icon {
        transform: rotate(180deg);
        color: var(--accent);
    }
    
    .faq-answer {
        max-height: 0;
        overflow: hidden;
        transition: max-height 0.35s ease, padding 0.3s ease;
        padding: 0 20px;
        font-size: 14px;
        color: var(--text-muted);
        line-height: 1.7;
    }
    
    .faq-item.open .faq-answer {
        max-height: 300px;
        padding: 0 20px 16px;
    }
    
    /* ============ CTA ============ */
    .cta-section {
        padding-bottom: var(--section-space);
    }
    
    .cta-card {
        background: var(--bg-card);
        border: 1px solid var(--border-light);
        border-radius: var(--radius-lg);
        padding: 36px 40px;
        box-shadow: var(--shadow-md);
        display: flex;
        align-items: center;
        justify-content: space-between;
        gap: 24px;
        flex-wrap: wrap;
    }
    
    .cta-text h3 {
        font-size: 22px;
        font-weight: 800;
        color: var(--text-primary);
        margin-bottom: 6px;
    }
    
    .cta-text p {
        font-size: 14px;
        color: var(--text-muted);
        margin: 0;
    }
    
    .btn-primary {
        display: inline-flex;
        align-items: center;
        gap: 8px;
        background: var(--accent);
        color: #fff;
        font-size: 14px;
        font-weight: 600;
        padding: 12px 28px;
        border-radius: 24px;
        border: none;
        cursor: pointer;
        transition: var(--transition);
        text-decoration: none;
    }
    
    .btn-primary:hover {
        background: var(--accent-hover);
        color: #fff;
        box-shadow: 0 6px 20px rgba(217, 119, 69, 0.35);
    }
    
    .btn-primary:active {
        transform: translateY(1px);
        box-shadow: 0 2px 8px rgba(217, 119, 69, 0.3);
    }
    
    /* ============ 页脚 ============ */
    .site-footer {
        background: var(--primary-dark);
        color: rgba(255, 255, 255, 0.75);
        padding: 56px 0 24px;
    }
    
    .footer-grid {
        display: grid;
        grid-template-columns: 2fr 1fr 1fr 1fr;
        gap: 40px;
        margin-bottom: 40px;
    }
    
    .footer-brand .footer-logo {
        display: flex;
        align-items: center;
        gap: 8px;
        font-weight: 800;
        font-size: 18px;
        color: #fff;
        margin-bottom: 12px;
    }
    
    .footer-brand .logo-icon-sm {
        width: 28px;
        height: 28px;
        border-radius: 6px;
        background: var(--accent);
        display: flex;
        align-items: center;
        justify-content: center;
        color: #fff;
        font-size: 13px;
        font-weight: 700;
    }
    
    .footer-brand p {
        font-size: 13px;
        color: rgba(255, 255, 255, 0.6);
        line-height: 1.7;
        max-width: 300px;
    }
    
    .footer-column h4 {
        font-size: 13px;
        font-weight: 700;
        color: #fff;
        text-transform: uppercase;
        letter-spacing: 0.06em;
        margin-bottom: 14px;
    }
    
    .footer-column ul {
        list-style: none;
        padding: 0;
        margin: 0;
    }
    
    .footer-column ul li {
        margin-bottom: 8px;
    }
    
    .footer-column ul li a {
        font-size: 13px;
        color: rgba(255, 255, 255, 0.6);
        transition: var(--transition);
    }
    
    .footer-column ul li a:hover {
        color: var(--accent);
    }
    
    .footer-bottom {
        display: flex;
        align-items: center;
        justify-content: space-between;
        gap: 16px;
        flex-wrap: wrap;
        padding-top: 20px;
        border-top: 1px solid rgba(255, 255, 255, 0.1);
        font-size: 12px;
        color: rgba(255, 255, 255, 0.45);
    }
    
    .footer-links {
        display: flex;
        align-items: center;
        gap: 16px;
        flex-wrap: wrap;
    }
    
    .footer-links a {
        font-size: 12px;
        color: rgba(255, 255, 255, 0.6);
        transition: var(--transition);
    }
    
    .footer-links a:hover {
        color: var(--accent);
    }
    
    /* ============ 响应式 ============ */
    @media (max-width: 1024px) {
        .news-grid {
            grid-template-columns: repeat(2, 1fr);
            gap: 20px;
        }
        
        .footer-grid {
            grid-template-columns: 1fr 1fr;
            gap: 32px;
        }
        
        .data-panel {
            padding: 28px 30px;
        }
        
        .data-stat-number {
            font-size: 26px;
        }
    }
    
    @media (max-width: 768px) {
        :root {
            --section-space: 48px;
        }
        
        .brand-row {
            flex-wrap: nowrap;
            padding: 10px 0;
        }
        
        .brand-logo {
            font-size: 17px;
        }
        
        .brand-logo .logo-icon {
            width: 30px;
            height: 30px;
            font-size: 13px;
        }
        
        .search-box {
            display: none;
        }
        
        .trend-badges {
            display: none;
        }
        
        .nav-toggle {
            display: flex;
            align-items: center;
            justify-content: center;
        }
        
        .nav-channel-row {
            display: none;
            flex-direction: column;
            align-items: stretch;
            gap: 4px;
            padding: 8px 0 12px;
        }
        
        .nav-channel-row.mobile-open {
            display: flex;
        }
        
        .nav-channel-link {
            display: block;
            text-align: center;
            padding: 10px 16px;
            border-radius: var(--radius-sm);
        }
        
        .category-header-inner {
            flex-direction: column;
            gap: 16px;
        }
        
        .category-header-meta {
            flex-wrap: wrap;
        }
        
        .news-grid {
            grid-template-columns: 1fr;
            gap: 18px;
        }
        
        .featured-row-card {
            flex-direction: column;
            align-items: flex-start;
            gap: 12px;
            padding: 14px 16px;
        }
        
        .featured-row-image {
            width: 100%;
            height: 140px;
        }
        
        .data-panel {
            flex-direction: column;
            align-items: flex-start;
            padding: 24px 20px;
        }
        
        .data-panel-stats {
            gap: 20px;
            width: 100%;
            justify-content: space-between;
        }
        
        .cta-card {
            flex-direction: column;
            align-items: flex-start;
            padding: 24px 20px;
        }
        
        .footer-grid {
            grid-template-columns: 1fr;
            gap: 24px;
        }
        
        .footer-bottom {
            flex-direction: column;
            align-items: flex-start;
            gap: 10px;
        }
    }
    
    @media (max-width: 520px) {
        :root {
            --section-space: 40px;
        }
        
        .container {
            padding-left: 16px;
            padding-right: 16px;
        }
        
        .category-header-text h1 {
            font-size: 28px;
        }
        
        .section-heading h2 {
            font-size: 24px;
        }
        
        .data-panel-stats {
            gap: 14px;
        }
        
        .data-stat-number {
            font-size: 22px;
        }
        
        .data-stat-label {
            font-size: 11px;
        }
        
        .featured-row-image {
            height: 120px;
        }
        
        .faq-question {
            padding: 14px 16px;
            font-size: 14px;
        }
        
        .faq-answer {
            font-size: 13px;
            padding: 0 16px;
        }
        
        .faq-item.open .faq-answer {
            padding: 0 16px 14px;
        }
    }

/* roulang page: category4 */
:root {
            --primary: #1F2228;
            --primary-dark: #15171C;
            --primary-light: #2A2F36;
            --accent: #D97745;
            --accent-hover: #C5683A;
            --accent-dark: #B05A30;
            --secondary: #4A7C6F;
            --secondary-hover: #3E8E82;
            --bg-warm: #F7F4EE;
            --bg-white: #FFFFFF;
            --bg-card: #FFFFFF;
            --text-primary: #1F2228;
            --text-body: #3A3F46;
            --text-muted: #6B7280;
            --text-light: #9CA3AF;
            --border-light: #E5E0D8;
            --border-mid: #D8D2C8;
            --shadow-sm: 0 1px 3px rgba(31, 34, 40, 0.06);
            --shadow-md: 0 6px 24px rgba(31, 34, 40, 0.08);
            --shadow-lg: 0 16px 48px rgba(31, 34, 40, 0.12);
            --shadow-hover: 0 12px 32px rgba(31, 34, 40, 0.14);
            --radius-sm: 8px;
            --radius-md: 14px;
            --radius-lg: 18px;
            --radius-xl: 24px;
            --font-sans: 'Inter', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', 'Noto Sans SC', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
            --font-mono: 'JetBrains Mono', 'SF Mono', 'Fira Code', 'Cascadia Code', Consolas, 'Courier New', monospace;
            --transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
            --max-width: 1200px;
            --section-space: 88px;
            --section-space-mobile: 56px;
        }

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

        html {
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.7;
            color: var(--text-body);
            background-color: var(--bg-warm);
            margin: 0;
            padding: 0;
            overflow-x: hidden;
        }

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

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

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

        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            color: var(--text-primary);
            font-weight: 700;
            line-height: 1.3;
            margin: 0 0 12px;
        }

        h1 {
            font-size: clamp(32px, 4.5vw, 46px);
            font-weight: 800;
            letter-spacing: -0.02em;
        }

        h2 {
            font-size: clamp(26px, 3.2vw, 34px);
            font-weight: 800;
            letter-spacing: -0.015em;
        }

        h3 {
            font-size: clamp(19px, 2.2vw, 23px);
            font-weight: 700;
        }

        h4 {
            font-size: 17px;
            font-weight: 700;
        }

        p {
            margin-bottom: 12px;
        }

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

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

        .section-padding {
            padding-top: var(--section-space);
            padding-bottom: var(--section-space);
        }

        .section-padding-sm {
            padding-top: 48px;
            padding-bottom: 48px;
        }

        .section-heading {
            margin-bottom: 40px;
        }

        .section-heading h2 {
            font-size: clamp(28px, 3.5vw, 36px);
            font-weight: 800;
            letter-spacing: -0.02em;
            color: var(--text-primary);
            margin-bottom: 12px;
            line-height: 1.25;
        }

        .section-heading p {
            font-size: 16px;
            color: var(--text-muted);
            max-width: 720px;
            line-height: 1.75;
            margin-bottom: 0;
        }

        .section-tag {
            display: inline-block;
            font-size: 13px;
            font-weight: 600;
            letter-spacing: 0.04em;
            color: var(--accent);
            background: rgba(217, 119, 69, 0.1);
            padding: 4px 14px;
            border-radius: 20px;
            margin-bottom: 12px;
        }

        /* ============ 导航 ============ */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: rgba(247, 244, 238, 0.92);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid var(--border-light);
            transition: var(--transition);
        }

        .site-header.scrolled {
            box-shadow: 0 4px 20px rgba(31, 34, 40, 0.08);
            background: rgba(247, 244, 238, 0.97);
        }

        .brand-row {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 12px 0;
            gap: 20px;
        }

        .brand-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-weight: 800;
            font-size: 20px;
            color: var(--text-primary);
            letter-spacing: -0.02em;
        }

        .brand-logo .logo-icon {
            width: 36px;
            height: 36px;
            border-radius: 8px;
            background: linear-gradient(135deg, var(--accent), var(--accent-hover));
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 16px;
            font-weight: 700;
            flex-shrink: 0;
        }

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

        .brand-tools {
            display: flex;
            align-items: center;
            gap: 16px;
        }

        .search-box {
            display: flex;
            align-items: center;
            background: var(--bg-white);
            border: 1px solid var(--border-light);
            border-radius: 24px;
            padding: 6px 14px;
            gap: 8px;
            transition: var(--transition);
            min-width: 200px;
        }

        .search-box:focus-within {
            border-color: var(--accent);
            box-shadow: 0 0 0 2px rgba(217, 119, 69, 0.15);
        }

        .search-box input {
            border: none;
            outline: none;
            background: transparent;
            font-size: 14px;
            color: var(--text-primary);
            flex: 1;
            font-family: var(--font-sans);
        }

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

        .search-box i {
            color: var(--text-muted);
            font-size: 14px;
        }

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

        .hot-tag {
            font-size: 12px;
            font-weight: 500;
            color: var(--text-muted);
            background: rgba(255, 255, 255, 0.7);
            border: 1px solid var(--border-light);
            padding: 3px 12px;
            border-radius: 16px;
            transition: var(--transition);
            display: inline-block;
        }

        .hot-tag:hover {
            border-color: var(--accent);
            color: var(--accent);
        }

        .nav-channel-row {
            display: flex;
            align-items: center;
            gap: 4px;
            padding: 8px 0 12px;
            overflow-x: auto;
            scrollbar-width: none;
            -webkit-overflow-scrolling: touch;
        }

        .nav-channel-row::-webkit-scrollbar {
            display: none;
        }

        .nav-channel-link {
            display: inline-block;
            font-size: 15px;
            font-weight: 500;
            color: var(--text-muted);
            padding: 6px 16px;
            border-radius: 20px;
            white-space: nowrap;
            transition: var(--transition);
            flex-shrink: 0;
        }

        .nav-channel-link:hover {
            color: var(--text-primary);
            background: rgba(31, 34, 40, 0.05);
        }

        .nav-channel-link.active {
            color: #fff;
            background: var(--primary);
            font-weight: 600;
        }

        .nav-channel-link.active:hover {
            color: #fff;
            background: var(--primary-light);
        }

        .mobile-menu-btn {
            display: none;
            background: none;
            border: none;
            font-size: 24px;
            color: var(--text-primary);
            cursor: pointer;
            padding: 4px 8px;
            border-radius: 6px;
            transition: var(--transition);
        }

        .mobile-menu-btn:hover {
            background: rgba(31, 34, 40, 0.08);
        }

        .mobile-panel {
            display: none;
            background: var(--bg-white);
            border-top: 1px solid var(--border-light);
            padding: 16px 0;
        }

        .mobile-panel.open {
            display: block;
        }

        .mobile-panel .search-box {
            margin-bottom: 12px;
        }

        .mobile-panel .nav-channel-link {
            display: block;
            padding: 10px 16px;
            border-radius: 8px;
        }

        /* ============ 面包屑 ============ */
        .breadcrumb-row {
            padding: 16px 0 0;
        }

        .breadcrumb-list {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            color: var(--text-muted);
            flex-wrap: wrap;
        }

        .breadcrumb-list a {
            color: var(--text-muted);
        }

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

        .breadcrumb-list .separator {
            color: var(--text-light);
            font-size: 12px;
        }

        .breadcrumb-list .current {
            color: var(--text-primary);
            font-weight: 600;
        }

        /* ============ 分类 Hero ============ */
        .category-hero {
            padding: 28px 0 36px;
            border-bottom: 1px solid var(--border-light);
            background: rgba(255, 255, 255, 0.5);
        }

        .category-hero-inner {
            display: flex;
            align-items: flex-start;
            gap: 32px;
            flex-wrap: wrap;
        }

        .category-hero-text {
            flex: 1;
            min-width: 280px;
        }

        .category-hero-text h1 {
            margin-bottom: 12px;
        }

        .category-hero-text .cat-subtitle {
            font-size: 17px;
            color: var(--text-body);
            max-width: 720px;
            line-height: 1.8;
            margin-bottom: 0;
        }

        .cat-stats-badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 13px;
            font-weight: 600;
            color: var(--secondary);
            background: rgba(74, 124, 111, 0.1);
            padding: 5px 14px;
            border-radius: 20px;
            margin-top: 12px;
        }

        .category-hero-image {
            flex-shrink: 0;
            width: 220px;
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-md);
        }

        .category-hero-image img {
            width: 100%;
            height: 160px;
            object-fit: cover;
        }

        /* ============ 四格数据面板 ============ */
        .data-quad-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }

        .data-quad-card {
            background: var(--primary);
            border-radius: var(--radius-md);
            padding: 24px 20px;
            text-align: center;
            transition: var(--transition);
            box-shadow: var(--shadow-sm);
            border: 1px solid rgba(255, 255, 255, 0.06);
        }

        .data-quad-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
            background: var(--primary-light);
        }

        .data-quad-card .quad-icon {
            font-size: 28px;
            color: var(--accent);
            margin-bottom: 10px;
        }

        .data-quad-card .quad-number {
            font-family: var(--font-mono);
            font-size: 32px;
            font-weight: 700;
            color: #fff;
            line-height: 1.2;
            letter-spacing: -0.02em;
        }

        .data-quad-card .quad-label {
            font-size: 13px;
            color: var(--text-light);
            margin-top: 6px;
            line-height: 1.4;
        }

        /* ============ 行列表主体 ============ */
        .tactics-list {
            display: flex;
            flex-direction: column;
            gap: 18px;
        }

        .tactic-row-card {
            display: flex;
            gap: 24px;
            background: var(--bg-card);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-md);
            padding: 20px;
            transition: var(--transition);
            cursor: default;
            align-items: flex-start;
            flex-wrap: wrap;
        }

        .tactic-row-card:hover {
            border-color: var(--border-mid);
            box-shadow: var(--shadow-hover);
            transform: translateY(-3px);
        }

        .tactic-thumb {
            flex-shrink: 0;
            width: 140px;
            height: 105px;
            border-radius: var(--radius-sm);
            overflow: hidden;
            background: var(--bg-warm);
        }

        .tactic-thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        .tactic-content {
            flex: 1;
            min-width: 240px;
        }

        .tactic-content h3 {
            font-size: 19px;
            margin-bottom: 8px;
            line-height: 1.4;
        }

        .tactic-content h3 a {
            color: var(--text-primary);
        }

        .tactic-content h3 a:hover {
            color: var(--accent);
        }

        .tactic-excerpt {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.75;
            margin-bottom: 10px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

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

        .tactic-meta .tag-badge {
            background: rgba(217, 119, 69, 0.1);
            color: var(--accent);
            padding: 2px 10px;
            border-radius: 12px;
            font-weight: 500;
        }

        /* ============ 相关专题 ============ */
        .related-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }

        .related-card {
            background: var(--bg-card);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-md);
            padding: 24px;
            transition: var(--transition);
        }

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

        .related-card .related-icon {
            font-size: 24px;
            color: var(--secondary);
            margin-bottom: 10px;
        }

        .related-card h3 {
            font-size: 18px;
            margin-bottom: 8px;
        }

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

        /* ============ 标签热词 ============ */
        .tag-cloud {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
        }

        .tag-cloud .tag-pill {
            display: inline-block;
            font-size: 14px;
            font-weight: 500;
            color: var(--text-body);
            background: var(--bg-card);
            border: 1px solid var(--border-mid);
            padding: 6px 18px;
            border-radius: 24px;
            transition: var(--transition);
            cursor: default;
        }

        .tag-cloud .tag-pill:hover {
            border-color: var(--accent);
            color: var(--accent);
            background: rgba(217, 119, 69, 0.05);
        }

        /* ============ CTA 板块 ============ */
        .mini-cta-block {
            background: var(--primary);
            border-radius: var(--radius-lg);
            padding: 40px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 24px;
            flex-wrap: wrap;
        }

        .mini-cta-block h2 {
            color: #fff;
            font-size: 24px;
            margin-bottom: 6px;
        }

        .mini-cta-block p {
            color: var(--text-light);
            margin-bottom: 0;
            font-size: 15px;
        }

        .btn-primary {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: var(--accent);
            color: #fff;
            border: none;
            padding: 12px 24px;
            border-radius: 24px;
            font-size: 15px;
            font-weight: 600;
            font-family: var(--font-sans);
            cursor: pointer;
            transition: var(--transition);
            white-space: nowrap;
        }

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

        .btn-secondary {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: transparent;
            color: var(--primary);
            border: 2px solid var(--primary);
            padding: 10px 20px;
            border-radius: 24px;
            font-size: 15px;
            font-weight: 600;
            font-family: var(--font-sans);
            cursor: pointer;
            transition: var(--transition);
            white-space: nowrap;
        }

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

        /* ============ FAQ ============ */
        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .faq-item {
            background: var(--bg-card);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: var(--transition);
        }

        .faq-item:hover {
            border-color: var(--border-mid);
        }

        .faq-question {
            width: 100%;
            text-align: left;
            background: none;
            border: none;
            padding: 18px 22px;
            font-size: 16px;
            font-weight: 600;
            color: var(--text-primary);
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            font-family: var(--font-sans);
            transition: var(--transition);
        }

        .faq-question:hover {
            color: var(--accent);
        }

        .faq-question .faq-toggle-icon {
            color: var(--text-light);
            font-size: 14px;
            transition: var(--transition);
            flex-shrink: 0;
        }

        .faq-question[aria-expanded="true"] .faq-toggle-icon {
            transform: rotate(180deg);
            color: var(--accent);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s cubic-bezier(0.4, 0, 0.2, 1);
        }

        .faq-answer-inner {
            padding: 0 22px 18px;
            font-size: 15px;
            color: var(--text-muted);
            line-height: 1.75;
        }

        .faq-item.active {
            border-color: rgba(217, 119, 69, 0.4);
            box-shadow: var(--shadow-sm);
        }

        /* ============ 页脚 ============ */
        .site-footer {
            background: var(--primary-dark);
            color: var(--text-light);
            padding: 48px 0 24px;
            margin-top: 0;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr 1fr;
            gap: 32px;
            margin-bottom: 32px;
        }

        .footer-brand .footer-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 20px;
            font-weight: 800;
            color: #fff;
            margin-bottom: 12px;
        }

        .footer-brand .logo-icon-sm {
            width: 32px;
            height: 32px;
            border-radius: 6px;
            background: linear-gradient(135deg, var(--accent), var(--accent-hover));
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 14px;
            font-weight: 700;
            flex-shrink: 0;
        }

        .footer-brand p {
            font-size: 14px;
            line-height: 1.7;
            color: var(--text-light);
            margin-bottom: 0;
        }

        .footer-column h4 {
            color: #fff;
            font-size: 14px;
            font-weight: 700;
            text-transform: uppercase;
            letter-spacing: 0.06em;
            margin-bottom: 16px;
        }

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

        .footer-column ul li a {
            color: var(--text-light);
            font-size: 14px;
            transition: var(--transition);
        }

        .footer-column ul li a:hover {
            color: var(--accent);
        }

        .footer-bottom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px;
            padding-top: 20px;
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            font-size: 13px;
            color: var(--text-light);
        }

        .footer-links {
            display: flex;
            gap: 16px;
        }

        .footer-links a {
            color: var(--text-light);
            font-size: 13px;
        }

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

        /* ============ 响应式 ============ */
        @media (max-width: 1024px) {
            .data-quad-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 14px;
            }

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

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

            .category-hero-image {
                width: 180px;
            }
        }

        @media (max-width: 768px) {
            :root {
                --section-space: 56px;
                --section-space-mobile: 44px;
            }

            .section-heading {
                margin-bottom: 28px;
            }

            .brand-tools {
                display: none;
            }

            .mobile-menu-btn {
                display: block;
            }

            .nav-channel-row {
                display: none;
            }

            .nav-channel-row.mobile-nav {
                display: flex;
                flex-direction: column;
                gap: 2px;
                padding: 8px 0;
            }

            .nav-channel-row.mobile-nav .nav-channel-link {
                display: block;
                text-align: left;
                border-radius: 8px;
                padding: 12px 16px;
            }

            .category-hero-inner {
                flex-direction: column;
                gap: 20px;
            }

            .category-hero-image {
                width: 100%;
            }

            .category-hero-image img {
                height: 180px;
            }

            .data-quad-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 12px;
            }

            .data-quad-card {
                padding: 18px 14px;
            }

            .data-quad-card .quad-number {
                font-size: 26px;
            }

            .tactic-row-card {
                flex-direction: column;
                gap: 14px;
                padding: 16px;
            }

            .tactic-thumb {
                width: 100%;
                height: 160px;
            }

            .related-grid {
                grid-template-columns: 1fr;
                gap: 14px;
            }

            .mini-cta-block {
                flex-direction: column;
                align-items: flex-start;
                padding: 28px 20px;
            }

            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }

            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
                gap: 8px;
            }
        }

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

            .data-quad-grid {
                grid-template-columns: 1fr 1fr;
                gap: 10px;
            }

            .data-quad-card {
                padding: 14px 10px;
            }

            .data-quad-card .quad-number {
                font-size: 22px;
            }

            .data-quad-card .quad-label {
                font-size: 11px;
            }

            .tactic-row-card {
                padding: 12px;
            }

            .tactic-thumb {
                height: 130px;
            }

            .tactic-content h3 {
                font-size: 17px;
            }

            .faq-question {
                font-size: 15px;
                padding: 14px 16px;
            }

            .faq-answer-inner {
                padding: 0 16px 14px;
                font-size: 14px;
            }
        }

        /* ============ 焦点可见性 ============ */
        a:focus-visible,
        button:focus-visible,
        input:focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: 2px;
        }

        a:active,
        button:active {
            transform: scale(0.98);
        }

/* roulang page: category5 */
:root {
            --primary: #1F2228;
            --primary-dark: #15171C;
            --primary-light: #2A2F36;
            --accent: #D97745;
            --accent-hover: #C5683A;
            --accent-dark: #B05A30;
            --secondary: #4A7C6F;
            --secondary-hover: #3E8E82;
            --bg-warm: #F7F4EE;
            --bg-white: #FFFFFF;
            --bg-card: #FFFFFF;
            --text-primary: #1F2228;
            --text-body: #3A3F46;
            --text-muted: #6B7280;
            --text-light: #9CA3AF;
            --border-light: #E5E0D8;
            --border-mid: #D8D2C8;
            --shadow-sm: 0 1px 3px rgba(31, 34, 40, 0.06);
            --shadow-md: 0 6px 24px rgba(31, 34, 40, 0.08);
            --shadow-lg: 0 16px 48px rgba(31, 34, 40, 0.12);
            --shadow-hover: 0 12px 32px rgba(31, 34, 40, 0.14);
            --radius-sm: 8px;
            --radius-md: 14px;
            --radius-lg: 18px;
            --radius-xl: 24px;
            --font-sans: 'Inter', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', 'Noto Sans SC', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
            --font-mono: 'JetBrains Mono', 'SF Mono', 'Fira Code', 'Cascadia Code', Consolas, 'Courier New', monospace;
            --transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
            --max-width: 1200px;
            --section-space: 72px;
            --section-space-mobile: 48px;
        }
        html {
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            scroll-behavior: smooth;
            box-sizing: border-box;
        }
        *,
        *::before,
        *::after {
            box-sizing: inherit;
        }
        body {
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.7;
            color: var(--text-body);
            background-color: var(--bg-warm);
            margin: 0;
            padding: 0;
            overflow-x: hidden;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        a {
            color: var(--accent);
            text-decoration: none;
            transition: var(--transition);
        }
        a:hover {
            color: var(--accent-hover);
        }
        .container {
            max-width: var(--max-width);
            margin: 0 auto;
            padding-left: 24px;
            padding-right: 24px;
        }
        .section-padding {
            padding-top: var(--section-space);
            padding-bottom: var(--section-space);
        }
        .section-padding-sm {
            padding-top: 40px;
            padding-bottom: 40px;
        }
        .section-heading {
            margin-bottom: 36px;
        }
        .section-heading h2 {
            font-size: clamp(26px, 3vw, 34px);
            font-weight: 800;
            letter-spacing: -0.02em;
            color: var(--text-primary);
            margin-bottom: 8px;
            line-height: 1.3;
        }
        .section-heading p {
            font-size: 15px;
            color: var(--text-muted);
            max-width: 700px;
            line-height: 1.75;
            margin: 0;
        }
        .section-tag {
            display: inline-block;
            font-size: 13px;
            font-weight: 600;
            letter-spacing: 0.04em;
            color: var(--accent);
            background: rgba(217, 119, 69, 0.1);
            padding: 4px 14px;
            border-radius: 20px;
            margin-bottom: 12px;
        }

        /* ============ 导航 ============ */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: rgba(247, 244, 238, 0.92);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid var(--border-light);
            transition: var(--transition);
        }
        .site-header.scrolled {
            box-shadow: 0 4px 20px rgba(31, 34, 40, 0.08);
            background: rgba(247, 244, 238, 0.97);
        }
        .brand-row {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 10px 0;
            gap: 20px;
        }
        .brand-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-weight: 800;
            font-size: 20px;
            color: var(--text-primary);
            letter-spacing: -0.02em;
            white-space: nowrap;
        }
        .brand-logo .logo-icon {
            width: 36px;
            height: 36px;
            border-radius: 8px;
            background: linear-gradient(135deg, var(--accent), var(--accent-hover));
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 16px;
            font-weight: 700;
            flex-shrink: 0;
        }
        .brand-logo:hover {
            color: var(--text-primary);
        }
        .brand-tools {
            display: flex;
            align-items: center;
            gap: 12px;
        }
        .search-box {
            display: flex;
            align-items: center;
            background: var(--bg-white);
            border: 1px solid var(--border-light);
            border-radius: 24px;
            padding: 6px 14px;
            gap: 8px;
            transition: var(--transition);
            min-width: 180px;
        }
        .search-box:focus-within {
            border-color: var(--accent);
            box-shadow: 0 0 0 2px rgba(217, 119, 69, 0.15);
        }
        .search-box input {
            border: none;
            outline: none;
            background: transparent;
            font-size: 14px;
            color: var(--text-primary);
            width: 100%;
        }
        .search-box input::placeholder {
            color: var(--text-light);
        }
        .search-box i {
            color: var(--text-light);
            font-size: 14px;
        }
        .nav-channel-row {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 6px;
            padding: 8px 0 12px;
        }
        .nav-channel-link {
            display: inline-block;
            font-size: 14px;
            font-weight: 600;
            color: var(--text-body);
            padding: 6px 16px;
            border-radius: 20px;
            transition: var(--transition);
            white-space: nowrap;
        }
        .nav-channel-link:hover {
            color: var(--accent-hover);
            background: rgba(217, 119, 69, 0.08);
        }
        .nav-channel-link.active {
            color: #fff;
            background: var(--primary);
        }
        .mobile-search-toggle {
            display: none;
            font-size: 18px;
            color: var(--text-body);
            background: none;
            border: none;
            padding: 6px;
            cursor: pointer;
            transition: var(--transition);
        }
        .mobile-search-toggle:hover {
            color: var(--accent);
        }
        .mobile-search-panel {
            display: none;
            padding: 10px 0;
            border-top: 1px solid var(--border-light);
        }
        .mobile-search-panel.is-open {
            display: block;
        }

        /* ============ 面包屑 ============ */
        .breadcrumb-wrap {
            padding: 18px 0 6px;
        }
        .breadcrumb-custom {
            list-style: none;
            margin: 0;
            padding: 0;
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            color: var(--text-muted);
        }
        .breadcrumb-custom li {
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .breadcrumb-custom li+li::before {
            content: '/';
            color: var(--text-light);
            font-size: 13px;
        }
        .breadcrumb-custom a {
            color: var(--text-muted);
            font-weight: 500;
        }
        .breadcrumb-custom a:hover {
            color: var(--accent);
        }
        .breadcrumb-custom .current {
            color: var(--text-primary);
            font-weight: 600;
        }

        /* ============ 分类页 Hero / H1 ============ */
        .category-hero {
            padding: 32px 0 36px;
            position: relative;
            overflow: hidden;
            background: var(--primary);
            border-radius: var(--radius-xl);
            margin-bottom: 40px;
        }
        .category-hero::before {
            content: '';
            position: absolute;
            top: 0;
            right: 0;
            width: 55%;
            height: 100%;
            background: url('/assets/images/3864dfdea25a1132.jpg') center/cover no-repeat;
            opacity: 0.25;
            pointer-events: none;
        }
        .category-hero .container {
            position: relative;
            z-index: 2;
        }
        .category-hero h1 {
            font-size: clamp(30px, 4vw, 44px);
            font-weight: 800;
            color: #fff;
            letter-spacing: -0.02em;
            margin: 0 0 12px;
            line-height: 1.25;
            max-width: 600px;
        }
        .category-hero p {
            color: rgba(255, 255, 255, 0.82);
            font-size: 16px;
            max-width: 560px;
            line-height: 1.8;
            margin: 0;
        }
        .category-hero .hero-meta {
            display: flex;
            flex-wrap: wrap;
            gap: 20px;
            margin-top: 20px;
        }
        .category-hero .hero-meta-item {
            display: flex;
            align-items: center;
            gap: 8px;
            color: rgba(255, 255, 255, 0.7);
            font-size: 13px;
        }
        .category-hero .hero-meta-item i {
            color: var(--accent);
        }

        /* ============ 卡片 / 列表 ============ */
        .card-grid-2 {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 24px;
        }
        .article-card {
            background: var(--bg-card);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
            display: flex;
            flex-direction: column;
        }
        .article-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-4px);
            border-color: var(--border-mid);
        }
        .article-card .card-img {
            width: 100%;
            height: 220px;
            object-fit: cover;
            display: block;
        }
        .article-card .card-body {
            padding: 20px 24px 24px;
            display: flex;
            flex-direction: column;
            flex: 1;
        }
        .article-card .card-tag {
            display: inline-block;
            font-size: 12px;
            font-weight: 600;
            color: var(--secondary);
            background: rgba(74, 124, 111, 0.1);
            padding: 3px 10px;
            border-radius: 14px;
            margin-bottom: 10px;
            align-self: flex-start;
        }
        .article-card h3 {
            font-size: 19px;
            font-weight: 700;
            color: var(--text-primary);
            letter-spacing: -0.01em;
            line-height: 1.4;
            margin: 0 0 8px;
        }
        .article-card .card-excerpt {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.75;
            margin: 0 0 16px;
            flex: 1;
        }
        .article-card .card-footer {
            display: flex;
            align-items: center;
            justify-content: space-between;
            font-size: 13px;
            color: var(--text-light);
            border-top: 1px solid var(--border-light);
            padding-top: 14px;
            margin-top: auto;
        }
        .article-card .read-more {
            font-weight: 600;
            color: var(--accent);
            font-size: 14px;
            display: inline-flex;
            align-items: center;
            gap: 4px;
        }
        .article-card .read-more:hover {
            color: var(--accent-hover);
            gap: 8px;
        }

        /* ============ 横向专题卡片 ============ */
        .topic-h-card {
            display: flex;
            gap: 16px;
            background: var(--bg-card);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-md);
            padding: 16px;
            transition: var(--transition);
            align-items: center;
        }
        .topic-h-card:hover {
            box-shadow: var(--shadow-md);
            border-color: var(--border-mid);
            transform: translateY(-2px);
        }
        .topic-h-card .topic-thumb {
            width: 80px;
            height: 80px;
            border-radius: var(--radius-sm);
            object-fit: cover;
            flex-shrink: 0;
        }
        .topic-h-card .topic-info h4 {
            font-size: 16px;
            font-weight: 700;
            color: var(--text-primary);
            margin: 0 0 4px;
            line-height: 1.4;
        }
        .topic-h-card .topic-info p {
            font-size: 13px;
            color: var(--text-muted);
            margin: 0;
            line-height: 1.6;
        }

        /* ============ 数据面板 ============ */
        .data-panel {
            background: var(--primary);
            border-radius: var(--radius-lg);
            padding: 32px 36px;
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }
        .data-panel .data-item {
            text-align: center;
        }
        .data-panel .data-value {
            font-family: var(--font-mono);
            font-size: 32px;
            font-weight: 800;
            color: var(--accent);
            letter-spacing: -0.02em;
            line-height: 1.2;
        }
        .data-panel .data-label {
            font-size: 13px;
            color: rgba(255, 255, 255, 0.7);
            margin-top: 6px;
        }

        /* ============ CTA 板块 ============ */
        .cta-box {
            background: var(--bg-card);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-lg);
            padding: 36px 40px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 24px;
            flex-wrap: wrap;
            box-shadow: var(--shadow-sm);
        }
        .cta-box .cta-text h3 {
            font-size: 22px;
            font-weight: 700;
            color: var(--text-primary);
            margin: 0 0 6px;
        }
        .cta-box .cta-text p {
            font-size: 14px;
            color: var(--text-muted);
            margin: 0;
        }
        .btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 15px;
            font-weight: 600;
            padding: 12px 24px;
            border-radius: 24px;
            border: none;
            cursor: pointer;
            transition: var(--transition);
            text-decoration: none;
            white-space: nowrap;
        }
        .btn-primary {
            background: var(--accent);
            color: #fff;
        }
        .btn-primary:hover {
            background: var(--accent-hover);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 6px 16px rgba(217, 119, 69, 0.3);
        }
        .btn-primary:focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: 2px;
        }
        .btn-secondary {
            background: transparent;
            color: var(--text-primary);
            border: 1px solid var(--border-mid);
        }
        .btn-secondary:hover {
            border-color: var(--text-primary);
            color: var(--text-primary);
            transform: translateY(-2px);
        }
        .btn-secondary:focus-visible {
            outline: 2px solid var(--text-primary);
            outline-offset: 2px;
        }

        /* ============ 标签云 ============ */
        .tag-cloud {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
        }
        .tag-badge {
            display: inline-block;
            font-size: 13px;
            font-weight: 600;
            color: var(--text-body);
            background: var(--bg-card);
            border: 1px solid var(--border-light);
            border-radius: 20px;
            padding: 6px 16px;
            transition: var(--transition);
        }
        .tag-badge:hover {
            border-color: var(--accent);
            color: var(--accent);
            background: rgba(217, 119, 69, 0.06);
            transform: translateY(-2px);
        }

        /* ============ FAQ ============ */
        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .faq-item {
            background: var(--bg-card);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: var(--transition);
        }
        .faq-item:hover {
            border-color: var(--border-mid);
        }
        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 16px 20px;
            cursor: pointer;
            font-weight: 700;
            color: var(--text-primary);
            font-size: 15px;
            line-height: 1.5;
            user-select: none;
            transition: var(--transition);
        }
        .faq-question:hover {
            color: var(--accent);
        }
        .faq-question .faq-icon {
            font-size: 14px;
            color: var(--accent);
            transition: var(--transition);
            flex-shrink: 0;
            margin-left: 12px;
        }
        .faq-item.is-open .faq-icon {
            transform: rotate(180deg);
        }
        .faq-answer {
            display: none;
            padding: 0 20px 18px;
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.75;
        }
        .faq-item.is-open .faq-answer {
            display: block;
        }

        /* ============ 页脚 ============ */
        .site-footer {
            background: var(--primary-dark);
            color: rgba(255, 255, 255, 0.7);
            padding-top: 48px;
            padding-bottom: 24px;
            margin-top: 40px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.6fr 1fr 1fr 1fr;
            gap: 32px;
            padding-bottom: 32px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.1);
        }
        .footer-logo {
            display: flex;
            align-items: center;
            gap: 8px;
            font-weight: 800;
            font-size: 18px;
            color: #fff;
            letter-spacing: -0.02em;
            margin-bottom: 12px;
        }
        .logo-icon-sm {
            width: 30px;
            height: 30px;
            border-radius: 6px;
            background: var(--accent);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 14px;
            font-weight: 700;
            flex-shrink: 0;
        }
        .footer-brand p {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.55);
            line-height: 1.7;
            margin: 0;
        }
        .footer-column h4 {
            font-size: 14px;
            font-weight: 700;
            color: #fff;
            letter-spacing: 0.02em;
            margin: 0 0 14px;
        }
        .footer-column ul {
            list-style: none;
            margin: 0;
            padding: 0;
            display: flex;
            flex-direction: column;
            gap: 8px;
        }
        .footer-column ul a {
            color: rgba(255, 255, 255, 0.55);
            font-size: 14px;
            transition: var(--transition);
        }
        .footer-column ul a:hover {
            color: var(--accent);
        }
        .footer-bottom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px;
            padding-top: 20px;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.45);
        }
        .footer-links {
            display: flex;
            gap: 16px;
        }
        .footer-links a {
            color: rgba(255, 255, 255, 0.55);
            font-size: 13px;
        }
        .footer-links a:hover {
            color: var(--accent);
        }

        /* ============ 响应式 ============ */
        @media (max-width: 1024px) {
            .card-grid-2 {
                grid-template-columns: 1fr 1fr;
                gap: 18px;
            }
            .data-panel {
                grid-template-columns: repeat(2, 1fr);
                gap: 16px;
                padding: 24px;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 24px;
            }
        }
        @media (max-width: 768px) {
            :root {
                --section-space: 48px;
            }
            .brand-row {
                flex-wrap: wrap;
                gap: 10px;
                padding: 8px 0;
            }
            .brand-tools .search-box {
                display: none;
            }
            .mobile-search-toggle {
                display: inline-flex;
                align-items: center;
                justify-content: center;
            }
            .nav-channel-row {
                flex-wrap: nowrap;
                overflow-x: auto;
                -webkit-overflow-scrolling: touch;
                gap: 4px;
                padding: 8px 0 10px;
                scrollbar-width: thin;
            }
            .nav-channel-row::-webkit-scrollbar {
                height: 3px;
            }
            .nav-channel-row::-webkit-scrollbar-thumb {
                background: var(--border-mid);
                border-radius: 3px;
            }
            .nav-channel-link {
                font-size: 13px;
                padding: 5px 12px;
                flex-shrink: 0;
            }
            .category-hero {
                padding: 24px 20px 28px;
                border-radius: var(--radius-lg);
            }
            .category-hero h1 {
                font-size: 26px;
            }
            .category-hero p {
                font-size: 14px;
            }
            .card-grid-2 {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .article-card .card-img {
                height: 180px;
            }
            .topic-h-card {
                padding: 12px;
            }
            .topic-h-card .topic-thumb {
                width: 60px;
                height: 60px;
            }
            .data-panel {
                grid-template-columns: 1fr 1fr;
                gap: 16px;
                padding: 20px;
            }
            .data-panel .data-value {
                font-size: 26px;
            }
            .cta-box {
                padding: 24px 20px;
                flex-direction: column;
                align-items: flex-start;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 20px;
                padding-bottom: 20px;
            }
            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
            }
        }
        @media (max-width: 520px) {
            :root {
                --section-space: 36px;
            }
            .container {
                padding-left: 16px;
                padding-right: 16px;
            }
            .category-hero h1 {
                font-size: 22px;
            }
            .article-card .card-body {
                padding: 16px 18px 20px;
            }
            .article-card h3 {
                font-size: 17px;
            }
            .data-panel {
                grid-template-columns: 1fr 1fr;
                gap: 12px;
                padding: 16px;
            }
            .data-panel .data-value {
                font-size: 22px;
            }
            .data-panel .data-label {
                font-size: 11px;
            }
            .btn {
                font-size: 14px;
                padding: 10px 18px;
            }
            .tag-badge {
                font-size: 12px;
                padding: 5px 12px;
            }
            .faq-question {
                font-size: 14px;
                padding: 14px 16px;
            }
            .faq-answer {
                padding: 0 16px 14px;
                font-size: 13px;
            }
        }