/* roulang page: index */
/* ===== 设计变量 ===== */
        :root {
            --primary: #1a2a4a;
            --primary-light: #2c4280;
            --primary-dark: #0f1a30;
            --accent: #e8b84b;
            --accent-light: #f0d07a;
            --accent-dark: #c99a2e;
            --bg-body: #f7f8fa;
            --bg-white: #ffffff;
            --bg-card: #ffffff;
            --bg-dark: #0f1a30;
            --text-primary: #1a1a2e;
            --text-secondary: #4a4a6a;
            --text-muted: #8a8aaa;
            --text-light: #f0f0f5;
            --text-white: #ffffff;
            --border: #e2e4ed;
            --border-light: #f0f1f6;
            --radius-sm: 6px;
            --radius-md: 12px;
            --radius-lg: 20px;
            --radius-xl: 28px;
            --shadow-sm: 0 2px 8px rgba(26, 42, 74, 0.06);
            --shadow-md: 0 8px 30px rgba(26, 42, 74, 0.10);
            --shadow-lg: 0 20px 60px rgba(26, 42, 74, 0.14);
            --shadow-accent: 0 8px 30px rgba(232, 184, 75, 0.30);
            --spacing-xs: 6px;
            --spacing-sm: 12px;
            --spacing-md: 24px;
            --spacing-lg: 48px;
            --spacing-xl: 80px;
            --font-base: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif;
            --font-heading: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif;
            --transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
            --max-width: 1200px;
        }

        /* ===== 基础 Reset ===== */
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }
        body {
            font-family: var(--font-base);
            font-size: 16px;
            line-height: 1.7;
            color: var(--text-primary);
            background: var(--bg-body);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        a {
            color: var(--primary-light);
            text-decoration: none;
            transition: color var(--transition);
        }
        a:hover {
            color: var(--accent-dark);
        }
        a:focus-visible {
            outline: 3px solid var(--accent);
            outline-offset: 2px;
            border-radius: 4px;
        }
        button,
        input,
        textarea,
        select {
            font-family: inherit;
            font-size: inherit;
            line-height: inherit;
        }
        button:focus-visible,
        input:focus-visible,
        textarea:focus-visible {
            outline: 3px solid var(--accent);
            outline-offset: 2px;
        }
        ul,
        ol {
            list-style: none;
        }
        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            font-family: var(--font-heading);
            font-weight: 700;
            line-height: 1.3;
            color: var(--text-primary);
        }
        h1 {
            font-size: 2.6rem;
        }
        h2 {
            font-size: 2.0rem;
        }
        h3 {
            font-size: 1.4rem;
        }
        h4 {
            font-size: 1.15rem;
        }
        p {
            margin-bottom: 1rem;
        }
        p:last-child {
            margin-bottom: 0;
        }

        /* ===== 容器 ===== */
        .container {
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 var(--spacing-md);
        }
        .container-narrow {
            max-width: 880px;
            margin: 0 auto;
            padding: 0 var(--spacing-md);
        }

        /* ===== 通用组件 ===== */
        .section-padding {
            padding: var(--spacing-xl) 0;
        }
        .section-padding-sm {
            padding: var(--spacing-lg) 0;
        }
        .section-title {
            text-align: center;
            margin-bottom: var(--spacing-lg);
        }
        .section-title h2 {
            margin-bottom: var(--spacing-sm);
            position: relative;
            display: inline-block;
        }
        .section-title h2::after {
            content: '';
            display: block;
            width: 60px;
            height: 4px;
            background: var(--accent);
            border-radius: 4px;
            margin: var(--spacing-sm) auto 0;
        }
        .section-title p {
            color: var(--text-secondary);
            font-size: 1.05rem;
            max-width: 620px;
            margin: var(--spacing-sm) auto 0;
        }
        .text-center {
            text-align: center;
        }
        .text-muted {
            color: var(--text-muted);
        }

        /* ===== 按钮 ===== */
        .btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 32px;
            border-radius: var(--radius-md);
            font-weight: 600;
            font-size: 1rem;
            border: none;
            cursor: pointer;
            transition: all var(--transition);
            text-decoration: none;
            line-height: 1.4;
        }
        .btn:focus-visible {
            outline: 3px solid var(--accent);
            outline-offset: 2px;
        }
        .btn-primary {
            background: var(--accent);
            color: var(--primary-dark);
            box-shadow: var(--shadow-accent);
        }
        .btn-primary:hover {
            background: var(--accent-light);
            color: var(--primary-dark);
            transform: translateY(-2px);
            box-shadow: 0 12px 36px rgba(232, 184, 75, 0.40);
        }
        .btn-primary:active {
            transform: translateY(0);
            box-shadow: var(--shadow-accent);
        }
        .btn-outline {
            background: transparent;
            color: var(--text-white);
            border: 2px solid rgba(255, 255, 255, 0.35);
        }
        .btn-outline:hover {
            background: rgba(255, 255, 255, 0.10);
            border-color: var(--accent);
            color: var(--accent);
            transform: translateY(-2px);
        }
        .btn-outline:active {
            transform: translateY(0);
        }
        .btn-dark {
            background: var(--primary);
            color: var(--text-white);
        }
        .btn-dark:hover {
            background: var(--primary-light);
            color: var(--text-white);
            transform: translateY(-2px);
            box-shadow: var(--shadow-md);
        }
        .btn-dark:active {
            transform: translateY(0);
        }
        .btn-sm {
            padding: 8px 20px;
            font-size: 0.9rem;
            border-radius: var(--radius-sm);
        }
        .btn-lg {
            padding: 16px 44px;
            font-size: 1.1rem;
        }

        /* ===== 标签 / 徽章 ===== */
        .badge {
            display: inline-block;
            padding: 4px 14px;
            border-radius: 100px;
            font-size: 0.78rem;
            font-weight: 600;
            letter-spacing: 0.3px;
            background: var(--accent);
            color: var(--primary-dark);
        }
        .badge-outline {
            background: transparent;
            border: 1.5px solid var(--border);
            color: var(--text-secondary);
        }
        .badge-sm {
            font-size: 0.70rem;
            padding: 2px 10px;
        }
        .tag {
            display: inline-block;
            padding: 3px 12px;
            border-radius: var(--radius-sm);
            font-size: 0.78rem;
            background: var(--bg-body);
            color: var(--text-secondary);
            border: 1px solid var(--border);
            transition: all var(--transition);
        }
        .tag:hover {
            background: var(--accent);
            color: var(--primary-dark);
            border-color: var(--accent);
        }

        /* ===== 卡片 ===== */
        .card {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-sm);
            overflow: hidden;
            transition: all var(--transition);
            border: 1px solid var(--border-light);
        }
        .card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-4px);
        }
        .card-img {
            width: 100%;
            aspect-ratio: 16 / 10;
            object-fit: cover;
            display: block;
        }
        .card-body {
            padding: var(--spacing-md);
        }
        .card-body h3,
        .card-body h4 {
            margin-bottom: var(--spacing-xs);
        }
        .card-body p {
            color: var(--text-secondary);
            font-size: 0.95rem;
            margin-bottom: 0;
        }
        .card-meta {
            display: flex;
            align-items: center;
            gap: var(--spacing-sm);
            font-size: 0.82rem;
            color: var(--text-muted);
            margin-top: var(--spacing-sm);
        }
        .card-meta i {
            margin-right: 4px;
        }
        .card-link {
            text-decoration: none;
            color: inherit;
            display: block;
        }
        .card-link:hover {
            color: inherit;
        }

        /* ===== 网格 ===== */
        .grid-2 {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: var(--spacing-md);
        }
        .grid-3 {
            display: grid;
            grid-template-columns: 1fr 1fr 1fr;
            gap: var(--spacing-md);
        }
        .grid-4 {
            display: grid;
            grid-template-columns: 1fr 1fr 1fr 1fr;
            gap: var(--spacing-md);
        }

        /* ===== 分割线 ===== */
        .divider {
            height: 1px;
            background: var(--border);
            margin: var(--spacing-lg) 0;
        }
        .divider-light {
            background: rgba(255, 255, 255, 0.08);
        }

        /* ===== ===== 导航 ===== ===== */
        .site-header {
            background: var(--bg-white);
            border-bottom: 1px solid var(--border-light);
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: 0 1px 12px rgba(26, 42, 74, 0.04);
        }
        .header-inner {
            display: flex;
            flex-direction: column;
        }
        /* 品牌行 */
        .brand-row {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 12px 0;
        }
        .logo {
            font-size: 1.4rem;
            font-weight: 800;
            color: var(--primary);
            letter-spacing: -0.3px;
            text-decoration: none;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .logo:hover {
            color: var(--primary-light);
        }
        .logo i {
            color: var(--accent);
            font-size: 1.3rem;
        }
        .brand-actions {
            display: flex;
            align-items: center;
            gap: var(--spacing-sm);
        }
        .search-toggle {
            background: none;
            border: none;
            font-size: 1.1rem;
            color: var(--text-secondary);
            padding: 8px;
            border-radius: var(--radius-sm);
            cursor: pointer;
            transition: all var(--transition);
        }
        .search-toggle:hover {
            color: var(--primary);
            background: var(--bg-body);
        }
        /* 频道行 */
        .channel-row {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 6px 0 10px;
            border-top: 1px solid var(--border-light);
        }
        .nav-channels {
            display: flex;
            align-items: center;
            gap: 4px;
            flex-wrap: wrap;
        }
        .nav-channels a {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 6px 18px;
            border-radius: 100px;
            font-size: 0.88rem;
            font-weight: 500;
            color: var(--text-secondary);
            transition: all var(--transition);
            text-decoration: none;
            white-space: nowrap;
        }
        .nav-channels a:hover {
            background: var(--bg-body);
            color: var(--primary);
        }
        .nav-channels a.active {
            background: var(--primary);
            color: var(--text-white);
            box-shadow: var(--shadow-sm);
        }
        .nav-channels a i {
            font-size: 0.8rem;
            opacity: 0.7;
        }
        .nav-channels a.active i {
            opacity: 1;
        }
        /* 移动端菜单按钮 */
        .mobile-menu-btn {
            display: none;
            background: none;
            border: none;
            font-size: 1.4rem;
            color: var(--text-primary);
            padding: 4px 8px;
            cursor: pointer;
            border-radius: var(--radius-sm);
            transition: background var(--transition);
        }
        .mobile-menu-btn:hover {
            background: var(--bg-body);
        }
        /* 移动端频道面板 */
        .mobile-nav-panel {
            display: none;
            background: var(--bg-white);
            border-top: 1px solid var(--border-light);
            padding: var(--spacing-sm) 0 var(--spacing-md);
        }
        .mobile-nav-panel.open {
            display: block;
        }
        .mobile-nav-panel a {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 10px var(--spacing-md);
            border-radius: var(--radius-sm);
            font-size: 0.95rem;
            font-weight: 500;
            color: var(--text-secondary);
            transition: all var(--transition);
        }
        .mobile-nav-panel a:hover {
            background: var(--bg-body);
            color: var(--primary);
        }
        .mobile-nav-panel a.active {
            background: var(--primary);
            color: var(--text-white);
        }

        /* ===== ===== Hero 首屏 ===== ===== */
        .hero {
            position: relative;
            min-height: 520px;
            display: flex;
            align-items: center;
            background: var(--primary-dark);
            overflow: hidden;
        }
        .hero-bg {
            position: absolute;
            inset: 0;
            background-image: url('/assets/images/backpic/back-1.png');
            background-size: cover;
            background-position: center;
            background-repeat: no-repeat;
            opacity: 0.40;
            mix-blend-mode: overlay;
        }
        .hero-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(15, 26, 48, 0.92) 30%, rgba(26, 42, 74, 0.70) 70%, rgba(232, 184, 75, 0.15) 100%);
        }
        .hero-content {
            position: relative;
            z-index: 2;
            max-width: 720px;
            padding: var(--spacing-xl) 0;
        }
        .hero-content .badge {
            margin-bottom: var(--spacing-md);
        }
        .hero-content h1 {
            font-size: 3.0rem;
            color: var(--text-white);
            margin-bottom: var(--spacing-md);
            letter-spacing: -0.5px;
            line-height: 1.2;
        }
        .hero-content h1 span {
            color: var(--accent);
        }
        .hero-content p {
            font-size: 1.15rem;
            color: rgba(255, 255, 255, 0.78);
            margin-bottom: var(--spacing-lg);
            max-width: 560px;
        }
        .hero-actions {
            display: flex;
            align-items: center;
            gap: var(--spacing-sm);
            flex-wrap: wrap;
        }
        .hero-stats {
            display: flex;
            gap: var(--spacing-lg);
            margin-top: var(--spacing-lg);
            padding-top: var(--spacing-lg);
            border-top: 1px solid rgba(255, 255, 255, 0.10);
        }
        .hero-stat-item {
            text-align: center;
        }
        .hero-stat-item .num {
            font-size: 2.0rem;
            font-weight: 800;
            color: var(--accent);
            display: block;
        }
        .hero-stat-item .label {
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.55);
            margin-top: 2px;
        }

        /* ===== 核心说明板块 ===== */
        .intro-section {
            background: var(--bg-white);
        }
        .intro-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: var(--spacing-lg);
            align-items: center;
        }
        .intro-image {
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-md);
        }
        .intro-image img {
            width: 100%;
            height: auto;
            display: block;
        }
        .intro-text h2 {
            margin-bottom: var(--spacing-sm);
        }
        .intro-text p {
            color: var(--text-secondary);
            font-size: 1.02rem;
        }
        .intro-features {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: var(--spacing-sm);
            margin-top: var(--spacing-md);
        }
        .intro-feature-item {
            display: flex;
            align-items: flex-start;
            gap: 10px;
            padding: var(--spacing-sm);
            background: var(--bg-body);
            border-radius: var(--radius-sm);
        }
        .intro-feature-item i {
            color: var(--accent);
            font-size: 1.1rem;
            margin-top: 2px;
        }
        .intro-feature-item span {
            font-size: 0.92rem;
            color: var(--text-secondary);
        }

        /* ===== 分类入口 ===== */
        .categories-section {
            background: var(--bg-body);
        }
        .category-cards {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: var(--spacing-md);
        }
        .category-card {
            background: var(--bg-white);
            border-radius: var(--radius-md);
            padding: var(--spacing-md);
            text-align: center;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-light);
            transition: all var(--transition);
            cursor: default;
        }
        .category-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-4px);
            border-color: var(--accent);
        }
        .category-card .icon-wrap {
            width: 64px;
            height: 64px;
            margin: 0 auto var(--spacing-sm);
            background: var(--bg-body);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.6rem;
            color: var(--primary);
            transition: all var(--transition);
        }
        .category-card:hover .icon-wrap {
            background: var(--accent);
            color: var(--primary-dark);
        }
        .category-card h3 {
            font-size: 1.05rem;
            margin-bottom: 4px;
        }
        .category-card p {
            font-size: 0.88rem;
            color: var(--text-muted);
            margin-bottom: var(--spacing-sm);
        }
        .category-card .btn {
            margin-top: var(--spacing-xs);
        }

        /* ===== 最新资讯列表 ===== */
        .news-section {
            background: var(--bg-white);
        }
        .news-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: var(--spacing-md);
        }
        .news-card {
            display: flex;
            gap: var(--spacing-md);
            background: var(--bg-card);
            border-radius: var(--radius-md);
            padding: var(--spacing-md);
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-light);
            transition: all var(--transition);
        }
        .news-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-2px);
        }
        .news-thumb {
            flex-shrink: 0;
            width: 140px;
            height: 100px;
            border-radius: var(--radius-sm);
            overflow: hidden;
            background: var(--bg-body);
        }
        .news-thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        .news-info {
            flex: 1;
            min-width: 0;
        }
        .news-info h4 {
            font-size: 1.0rem;
            margin-bottom: 4px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .news-info p {
            font-size: 0.88rem;
            color: var(--text-secondary);
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            margin-bottom: 6px;
        }
        .news-meta {
            font-size: 0.78rem;
            color: var(--text-muted);
            display: flex;
            align-items: center;
            gap: var(--spacing-sm);
        }
        .news-meta i {
            margin-right: 3px;
        }
        .news-empty {
            grid-column: 1 / -1;
            text-align: center;
            padding: var(--spacing-lg);
            color: var(--text-muted);
            font-size: 1.0rem;
            background: var(--bg-body);
            border-radius: var(--radius-md);
        }

        /* ===== 数据 / 流程板块 ===== */
        .stats-section {
            background: var(--primary-dark);
            position: relative;
            overflow: hidden;
        }
        .stats-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background-image: url('/assets/images/backpic/back-2.png');
            background-size: cover;
            background-position: center;
            opacity: 0.12;
            mix-blend-mode: overlay;
        }
        .stats-inner {
            position: relative;
            z-index: 1;
        }
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: var(--spacing-md);
            text-align: center;
        }
        .stats-item .num {
            font-size: 2.6rem;
            font-weight: 800;
            color: var(--accent);
            display: block;
            line-height: 1.2;
        }
        .stats-item .label {
            font-size: 0.95rem;
            color: rgba(255, 255, 255, 0.65);
            margin-top: 4px;
        }

        /* ===== 操作流程 ===== */
        .steps-section {
            background: var(--bg-body);
        }
        .steps-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: var(--spacing-md);
            counter-reset: step;
        }
        .step-card {
            background: var(--bg-white);
            border-radius: var(--radius-md);
            padding: var(--spacing-md);
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-light);
            position: relative;
            text-align: center;
            transition: all var(--transition);
        }
        .step-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-3px);
        }
        .step-card::before {
            counter-increment: step;
            content: counter(step);
            position: absolute;
            top: -14px;
            left: 50%;
            transform: translateX(-50%);
            width: 32px;
            height: 32px;
            background: var(--accent);
            color: var(--primary-dark);
            font-weight: 800;
            font-size: 0.9rem;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            box-shadow: 0 4px 12px rgba(232, 184, 75, 0.30);
        }
        .step-card .icon-wrap {
            margin: var(--spacing-sm) auto;
            font-size: 2.0rem;
            color: var(--primary);
        }
        .step-card h4 {
            font-size: 1.05rem;
            margin-bottom: 4px;
        }
        .step-card p {
            font-size: 0.88rem;
            color: var(--text-secondary);
        }

        /* ===== FAQ ===== */
        .faq-section {
            background: var(--bg-white);
        }
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: var(--spacing-sm);
        }
        .faq-item {
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: all var(--transition);
        }
        .faq-item:hover {
            border-color: var(--accent);
        }
        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: var(--spacing-md);
            cursor: pointer;
            font-weight: 600;
            font-size: 1.0rem;
            background: var(--bg-body);
            transition: background var(--transition);
            user-select: none;
        }
        .faq-question:hover {
            background: var(--border-light);
        }
        .faq-question i {
            color: var(--accent);
            font-size: 1.1rem;
            transition: transform var(--transition);
        }
        .faq-item.open .faq-question i {
            transform: rotate(180deg);
        }
        .faq-answer {
            padding: 0 var(--spacing-md) var(--spacing-md);
            color: var(--text-secondary);
            font-size: 0.95rem;
            line-height: 1.7;
            display: none;
        }
        .faq-item.open .faq-answer {
            display: block;
        }

        /* ===== CTA ===== */
        .cta-section {
            background: var(--primary);
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background-image: url('/assets/images/backpic/back-3.png');
            background-size: cover;
            background-position: center;
            opacity: 0.10;
            mix-blend-mode: overlay;
        }
        .cta-inner {
            position: relative;
            z-index: 1;
            text-align: center;
            padding: var(--spacing-xl) 0;
        }
        .cta-inner h2 {
            color: var(--text-white);
            margin-bottom: var(--spacing-sm);
        }
        .cta-inner p {
            color: rgba(255, 255, 255, 0.70);
            font-size: 1.1rem;
            max-width: 540px;
            margin: 0 auto var(--spacing-md);
        }
        .cta-actions {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: var(--spacing-sm);
            flex-wrap: wrap;
        }

        /* ===== ===== 页脚 ===== ===== */
        .site-footer {
            background: var(--bg-dark);
            color: rgba(255, 255, 255, 0.60);
            font-size: 0.9rem;
        }
        .footer-main {
            padding: var(--spacing-lg) 0;
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: var(--spacing-md);
        }
        .footer-brand .logo {
            color: var(--text-white);
            margin-bottom: var(--spacing-sm);
            font-size: 1.2rem;
        }
        .footer-brand .logo i {
            color: var(--accent);
        }
        .footer-brand p {
            font-size: 0.88rem;
            color: rgba(255, 255, 255, 0.50);
            max-width: 300px;
        }
        .footer-col h4 {
            color: var(--text-white);
            font-size: 0.95rem;
            margin-bottom: var(--spacing-sm);
        }
        .footer-col a {
            display: block;
            padding: 4px 0;
            color: rgba(255, 255, 255, 0.55);
            font-size: 0.88rem;
            transition: all var(--transition);
        }
        .footer-col a:hover {
            color: var(--accent);
            padding-left: 4px;
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.06);
            padding: var(--spacing-md) 0;
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: var(--spacing-sm);
            font-size: 0.82rem;
            color: rgba(255, 255, 255, 0.40);
        }
        .footer-bottom a {
            color: rgba(255, 255, 255, 0.50);
        }
        .footer-bottom a:hover {
            color: var(--accent);
        }
        .footer-social {
            display: flex;
            gap: var(--spacing-sm);
        }
        .footer-social a {
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.06);
            display: flex;
            align-items: center;
            justify-content: center;
            color: rgba(255, 255, 255, 0.50);
            transition: all var(--transition);
            font-size: 0.95rem;
        }
        .footer-social a:hover {
            background: var(--accent);
            color: var(--primary-dark);
            transform: translateY(-2px);
        }

        /* ===== ===== 响应式 ===== ===== */
        @media (max-width: 1024px) {
            .grid-4 {
                grid-template-columns: 1fr 1fr;
            }
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .footer-main {
                grid-template-columns: 1fr 1fr;
                gap: var(--spacing-md);
            }
            .hero-content h1 {
                font-size: 2.4rem;
            }
        }

        @media (max-width: 768px) {
            h1 {
                font-size: 2.0rem;
            }
            h2 {
                font-size: 1.6rem;
            }
            h3 {
                font-size: 1.2rem;
            }
            .section-padding {
                padding: var(--spacing-lg) 0;
            }
            .section-padding-sm {
                padding: var(--spacing-md) 0;
            }

            /* 导航 */
            .mobile-menu-btn {
                display: block;
            }
            .channel-row .nav-channels {
                display: none;
            }
            .channel-row {
                justify-content: flex-end;
                padding: 6px 0;
            }
            .brand-row {
                padding: 10px 0;
            }
            .logo {
                font-size: 1.2rem;
            }

            /* Hero */
            .hero {
                min-height: 400px;
            }
            .hero-content h1 {
                font-size: 1.8rem;
            }
            .hero-content p {
                font-size: 1.0rem;
            }
            .hero-stats {
                gap: var(--spacing-md);
                flex-wrap: wrap;
            }
            .hero-stat-item .num {
                font-size: 1.6rem;
            }

            /* 网格 */
            .grid-2,
            .grid-3,
            .grid-4 {
                grid-template-columns: 1fr;
            }
            .intro-grid {
                grid-template-columns: 1fr;
            }
            .intro-features {
                grid-template-columns: 1fr;
            }
            .category-cards {
                grid-template-columns: 1fr;
            }
            .news-grid {
                grid-template-columns: 1fr;
            }
            .news-card {
                flex-direction: column;
            }
            .news-thumb {
                width: 100%;
                height: 160px;
            }
            .steps-grid {
                grid-template-columns: 1fr;
            }
            .stats-grid {
                grid-template-columns: 1fr 1fr;
                gap: var(--spacing-sm);
            }
            .stats-item .num {
                font-size: 2.0rem;
            }

            /* Footer */
            .footer-main {
                grid-template-columns: 1fr;
                gap: var(--spacing-md);
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
            .cta-inner h2 {
                font-size: 1.6rem;
            }
            .hero-actions {
                flex-direction: column;
                align-items: stretch;
            }
            .hero-actions .btn {
                text-align: center;
                justify-content: center;
            }
            .cta-actions {
                flex-direction: column;
                align-items: stretch;
            }
            .cta-actions .btn {
                text-align: center;
                justify-content: center;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding: 0 var(--spacing-sm);
            }
            .hero-content h1 {
                font-size: 1.5rem;
            }
            .hero-content p {
                font-size: 0.92rem;
            }
            .hero-stats {
                flex-direction: column;
                gap: var(--spacing-sm);
                align-items: flex-start;
            }
            .hero-stat-item {
                display: flex;
                align-items: center;
                gap: var(--spacing-sm);
                text-align: left;
            }
            .hero-stat-item .num {
                font-size: 1.4rem;
            }
            .stats-grid {
                grid-template-columns: 1fr 1fr;
            }
            .stats-item .num {
                font-size: 1.6rem;
            }
            .faq-question {
                font-size: 0.92rem;
                padding: var(--spacing-sm);
            }
            .faq-answer {
                font-size: 0.88rem;
                padding: 0 var(--spacing-sm) var(--spacing-sm);
            }
            .news-thumb {
                height: 120px;
            }
        }

/* roulang page: category1 */
/* ===== 设计变量 ===== */
        :root {
            --primary: #1a3a5c;
            --primary-light: #2a5a8a;
            --primary-dark: #0f2440;
            --secondary: #d4a843;
            --secondary-light: #e8c96a;
            --secondary-dark: #b8892e;
            --accent: #c0392b;
            --bg: #f7f9fc;
            --bg-card: #ffffff;
            --bg-dark: #1a2a3a;
            --text: #1e2a3a;
            --text-light: #5a6a7a;
            --text-white: #f0f4f8;
            --border: #e2e8f0;
            --border-light: #f0f2f5;
            --radius: 14px;
            --radius-sm: 8px;
            --radius-lg: 20px;
            --shadow: 0 8px 32px rgba(0,0,0,0.06);
            --shadow-hover: 0 16px 48px rgba(0,0,0,0.10);
            --shadow-card: 0 4px 20px rgba(0,0,0,0.04);
            --transition: 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
            --font-family: 'Inter', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif;
            --container: 1280px;
            --header-h: 120px;
        }

        /* ===== 基础 Reset ===== */
        *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
        html { scroll-behavior: smooth; font-size: 16px; }
        body {
            font-family: var(--font-family);
            background: var(--bg);
            color: var(--text);
            line-height: 1.7;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        a { color: inherit; text-decoration: none; transition: var(--transition); }
        a:hover { color: var(--primary-light); }
        img { display: block; max-width: 100%; height: auto; border-radius: var(--radius-sm); }
        ul, ol { list-style: none; }
        button, input, select, textarea { font-family: inherit; font-size: 1rem; border: none; outline: none; }
        button { cursor: pointer; background: none; }
        .container { max-width: var(--container); margin: 0 auto; padding: 0 24px; }
        .section-title { font-size: 2rem; font-weight: 700; color: var(--primary); margin-bottom: 0.75rem; letter-spacing: -0.02em; }
        .section-subtitle { font-size: 1.1rem; color: var(--text-light); max-width: 700px; margin-bottom: 2.5rem; line-height: 1.6; }

        /* ===== Header / 导航 ===== */
        .site-header {
            background: var(--bg-card);
            border-bottom: 1px solid var(--border);
            position: sticky; top: 0; z-index: 100;
            box-shadow: 0 2px 12px rgba(0,0,0,0.02);
        }
        .header-inner {
            display: flex; flex-direction: column;
            max-width: var(--container); margin: 0 auto; padding: 0 24px;
        }
        .header-top {
            display: flex; align-items: center; justify-content: space-between;
            padding: 12px 0;
            border-bottom: 1px solid var(--border-light);
        }
        .logo {
            display: flex; align-items: center; gap: 10px;
            font-size: 1.45rem; font-weight: 700; color: var(--primary);
            letter-spacing: -0.02em;
        }
        .logo i { color: var(--secondary); font-size: 1.6rem; }
        .logo:hover { color: var(--primary); opacity: 0.9; }
        .header-actions {
            display: flex; align-items: center; gap: 16px;
        }
        .header-actions .search-box {
            display: flex; align-items: center;
            background: var(--bg); border: 1px solid var(--border);
            border-radius: 40px; padding: 6px 16px;
            transition: var(--transition);
        }
        .header-actions .search-box:focus-within {
            border-color: var(--secondary); box-shadow: 0 0 0 3px rgba(212,168,67,0.12);
        }
        .header-actions .search-box input {
            background: transparent; border: none; padding: 6px 0;
            width: 160px; color: var(--text); font-size: 0.9rem;
        }
        .header-actions .search-box input::placeholder { color: var(--text-light); }
        .header-actions .search-box button {
            background: transparent; color: var(--text-light); font-size: 1rem;
            padding: 4px 0 4px 8px; transition: var(--transition);
        }
        .header-actions .search-box button:hover { color: var(--secondary); }
        .nav-channels {
            display: flex; align-items: center; gap: 6px;
            padding: 10px 0;
            overflow-x: auto;
            -ms-overflow-style: none; scrollbar-width: none;
        }
        .nav-channels::-webkit-scrollbar { display: none; }
        .nav-channels a {
            display: inline-flex; align-items: center; gap: 6px;
            padding: 8px 18px; border-radius: 40px;
            font-size: 0.95rem; font-weight: 500; color: var(--text-light);
            white-space: nowrap; transition: var(--transition);
            background: transparent;
        }
        .nav-channels a i { font-size: 0.9rem; }
        .nav-channels a:hover {
            background: rgba(26,58,92,0.06); color: var(--primary);
        }
        .nav-channels a.active {
            background: var(--primary); color: var(--text-white);
            box-shadow: 0 4px 12px rgba(26,58,92,0.20);
        }
        .nav-channels a.active:hover {
            background: var(--primary-light);
        }
        .mobile-menu-toggle {
            display: none; font-size: 1.5rem; color: var(--primary);
            background: none; border: none; padding: 4px;
        }

        /* ===== Hero / 横幅 ===== */
        .page-hero {
            position: relative;
            padding: 80px 0 80px;
            background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 60%, var(--primary-light) 100%);
            overflow: hidden;
            min-height: 320px;
            display: flex; align-items: center;
        }
        .page-hero::before {
            content: '';
            position: absolute; inset: 0;
            background: url('/assets/images/backpic/back-1.png') center/cover no-repeat;
            opacity: 0.12;
            pointer-events: none;
        }
        .page-hero .container {
            position: relative; z-index: 2;
            text-align: center;
        }
        .page-hero h1 {
            font-size: 2.8rem; font-weight: 800; color: var(--text-white);
            letter-spacing: -0.03em; line-height: 1.2;
            margin-bottom: 1rem;
            text-shadow: 0 2px 20px rgba(0,0,0,0.15);
        }
        .page-hero h1 i { color: var(--secondary-light); margin-right: 8px; }
        .page-hero p {
            font-size: 1.2rem; color: rgba(240,244,248,0.85);
            max-width: 640px; margin: 0 auto 1.6rem;
            line-height: 1.6;
        }
        .page-hero .breadcrumb {
            font-size: 0.9rem; color: rgba(240,244,248,0.7);
            margin-bottom: 1rem;
        }
        .page-hero .breadcrumb a { color: rgba(240,244,248,0.8); }
        .page-hero .breadcrumb a:hover { color: var(--secondary-light); }
        .page-hero .breadcrumb span { color: var(--secondary-light); }

        /* ===== 板块通用间距 ===== */
        .section-block { padding: 70px 0; }
        .section-block.bg-light { background: var(--bg); }
        .section-block.bg-white { background: var(--bg-card); }
        .section-block.bg-dark { background: var(--bg-dark); color: var(--text-white); }

        /* ===== 卡片网格 ===== */
        .card-grid {
            display: grid; gap: 28px;
            grid-template-columns: repeat(3, 1fr);
        }
        .card-item {
            background: var(--bg-card); border-radius: var(--radius);
            box-shadow: var(--shadow-card); overflow: hidden;
            transition: var(--transition);
            border: 1px solid var(--border-light);
            display: flex; flex-direction: column;
        }
        .card-item:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-hover);
            border-color: var(--border);
        }
        .card-item .card-img {
            width: 100%; height: 200px; object-fit: cover;
            display: block; border-radius: 0;
        }
        .card-item .card-body { padding: 22px 24px 26px; flex: 1; display: flex; flex-direction: column; }
        .card-item .card-body h3 { font-size: 1.2rem; font-weight: 600; color: var(--primary); margin-bottom: 8px; }
        .card-item .card-body p { font-size: 0.95rem; color: var(--text-light); line-height: 1.6; flex: 1; margin-bottom: 12px; }
        .card-item .card-tag {
            display: inline-block; background: rgba(212,168,67,0.12);
            color: var(--secondary-dark); font-size: 0.78rem; font-weight: 600;
            padding: 4px 12px; border-radius: 30px; margin-top: auto;
            align-self: flex-start;
        }
        .card-item .card-footer {
            display: flex; align-items: center; justify-content: space-between;
            padding: 12px 24px; border-top: 1px solid var(--border-light);
            font-size: 0.85rem; color: var(--text-light);
        }
        .card-item .card-footer i { margin-right: 4px; }
        .card-item .card-footer a { color: var(--primary); font-weight: 500; }
        .card-item .card-footer a:hover { color: var(--secondary); }

        /* ===== 步骤流程 ===== */
        .steps-grid {
            display: grid; gap: 32px;
            grid-template-columns: repeat(4, 1fr);
            counter-reset: step;
        }
        .step-item {
            background: var(--bg-card); border-radius: var(--radius);
            padding: 32px 24px; text-align: center;
            box-shadow: var(--shadow-card); border: 1px solid var(--border-light);
            transition: var(--transition);
            position: relative;
        }
        .step-item:hover { transform: translateY(-4px); box-shadow: var(--shadow-hover); }
        .step-item .step-num {
            counter-increment: step;
            font-size: 2.8rem; font-weight: 800; color: var(--secondary);
            opacity: 0.25; line-height: 1; margin-bottom: 4px;
        }
        .step-item .step-num::before { content: counter(step); }
        .step-item h4 { font-size: 1.1rem; font-weight: 600; color: var(--primary); margin-bottom: 6px; }
        .step-item p { font-size: 0.9rem; color: var(--text-light); line-height: 1.5; }
        .step-item .step-icon {
            font-size: 2rem; color: var(--primary); margin-bottom: 8px;
        }

        /* ===== FAQ ===== */
        .faq-list { max-width: 800px; margin: 0 auto; display: flex; flex-direction: column; gap: 12px; }
        .faq-item {
            background: var(--bg-card); border-radius: var(--radius-sm);
            border: 1px solid var(--border); overflow: hidden;
            transition: var(--transition);
        }
        .faq-item:hover { border-color: var(--secondary); }
        .faq-question {
            display: flex; align-items: center; justify-content: space-between;
            padding: 18px 22px; font-weight: 600; font-size: 1rem;
            color: var(--text); cursor: pointer;
            background: transparent; width: 100%; text-align: left;
            gap: 12px; transition: var(--transition);
        }
        .faq-question:hover { color: var(--primary); }
        .faq-question i { color: var(--secondary); transition: var(--transition); font-size: 1.1rem; }
        .faq-answer {
            padding: 0 22px 18px; font-size: 0.95rem;
            color: var(--text-light); line-height: 1.7;
            display: none;
        }
        .faq-item.active .faq-answer { display: block; }
        .faq-item.active .faq-question i { transform: rotate(180deg); }

        /* ===== CTA ===== */
        .cta-block {
            background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 100%);
            border-radius: var(--radius-lg); padding: 56px 48px;
            text-align: center; position: relative; overflow: hidden;
        }
        .cta-block::before {
            content: '';
            position: absolute; inset: 0;
            background: url('/assets/images/backpic/back-2.png') center/cover no-repeat;
            opacity: 0.06; pointer-events: none;
        }
        .cta-block h2 { font-size: 2rem; font-weight: 700; color: var(--text-white); margin-bottom: 12px; }
        .cta-block p { font-size: 1.1rem; color: rgba(240,244,248,0.85); margin-bottom: 28px; max-width: 600px; margin-left: auto; margin-right: auto; }
        .cta-block .btn-group { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; }

        .btn {
            display: inline-flex; align-items: center; gap: 8px;
            padding: 12px 30px; border-radius: 40px; font-weight: 600;
            font-size: 1rem; transition: var(--transition);
            border: none; cursor: pointer; text-decoration: none;
        }
        .btn-primary {
            background: var(--secondary); color: var(--primary-dark);
            box-shadow: 0 4px 16px rgba(212,168,67,0.30);
        }
        .btn-primary:hover { background: var(--secondary-light); transform: translateY(-2px); box-shadow: 0 8px 24px rgba(212,168,67,0.40); color: var(--primary-dark); }
        .btn-outline-light {
            background: transparent; color: var(--text-white);
            border: 2px solid rgba(240,244,248,0.5);
        }
        .btn-outline-light:hover { background: rgba(255,255,255,0.10); border-color: var(--text-white); transform: translateY(-2px); color: var(--text-white); }

        /* ===== 图文区块 ===== */
        .feature-row {
            display: flex; gap: 48px; align-items: center;
        }
        .feature-row .feature-img {
            flex: 0 0 48%; border-radius: var(--radius); object-fit: cover;
            box-shadow: var(--shadow);
        }
        .feature-row .feature-content { flex: 1; }
        .feature-row .feature-content h3 { font-size: 1.6rem; font-weight: 700; color: var(--primary); margin-bottom: 12px; }
        .feature-row .feature-content p { color: var(--text-light); margin-bottom: 16px; line-height: 1.7; }
        .feature-row .feature-content ul { display: flex; flex-direction: column; gap: 8px; }
        .feature-row .feature-content ul li { display: flex; align-items: flex-start; gap: 10px; font-size: 0.95rem; color: var(--text); }
        .feature-row .feature-content ul li i { color: var(--secondary); margin-top: 4px; }

        /* ===== 标签列表 ===== */
        .tag-list { display: flex; flex-wrap: wrap; gap: 10px; }
        .tag {
            display: inline-block; padding: 6px 16px; border-radius: 30px;
            background: var(--bg); border: 1px solid var(--border);
            font-size: 0.85rem; color: var(--text-light); transition: var(--transition);
        }
        .tag:hover { background: var(--primary); color: var(--text-white); border-color: var(--primary); }

        /* ===== 数据统计 ===== */
        .stats-grid {
            display: grid; gap: 24px;
            grid-template-columns: repeat(4, 1fr);
        }
        .stat-item {
            background: var(--bg-card); border-radius: var(--radius);
            padding: 28px 20px; text-align: center;
            box-shadow: var(--shadow-card); border: 1px solid var(--border-light);
        }
        .stat-item .stat-num { font-size: 2.4rem; font-weight: 800; color: var(--primary); line-height: 1.2; }
        .stat-item .stat-label { font-size: 0.95rem; color: var(--text-light); margin-top: 6px; }
        .stat-item .stat-icon { font-size: 2rem; color: var(--secondary); margin-bottom: 8px; }

        /* ===== 页脚 ===== */
        .site-footer {
            background: var(--primary-dark); color: rgba(240,244,248,0.85);
            padding: 56px 0 0;
        }
        .site-footer .container { max-width: var(--container); margin: 0 auto; padding: 0 24px; }
        .footer-main {
            display: grid; gap: 32px;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            padding-bottom: 36px; border-bottom: 1px solid rgba(255,255,255,0.08);
        }
        .footer-brand .logo { color: var(--text-white); font-size: 1.4rem; margin-bottom: 12px; }
        .footer-brand .logo i { color: var(--secondary); }
        .footer-brand p { font-size: 0.92rem; line-height: 1.7; color: rgba(240,244,248,0.7); max-width: 320px; }
        .footer-col h4 { font-size: 1rem; font-weight: 600; color: var(--text-white); margin-bottom: 16px; }
        .footer-col a { display: block; font-size: 0.9rem; color: rgba(240,244,248,0.7); padding: 4px 0; }
        .footer-col a:hover { color: var(--secondary-light); }
        .footer-bottom {
            display: flex; align-items: center; justify-content: space-between;
            padding: 20px 0; flex-wrap: wrap; gap: 12px;
            font-size: 0.85rem; color: rgba(240,244,248,0.5);
        }
        .footer-social { display: flex; gap: 12px; }
        .footer-social a { color: rgba(240,244,248,0.5); font-size: 1.2rem; transition: var(--transition); }
        .footer-social a:hover { color: var(--secondary-light); transform: scale(1.1); }

        /* ===== 响应式 ===== */
        @media (max-width: 1024px) {
            .card-grid { grid-template-columns: repeat(2, 1fr); }
            .steps-grid { grid-template-columns: repeat(2, 1fr); }
            .stats-grid { grid-template-columns: repeat(2, 1fr); }
            .feature-row { flex-direction: column; }
            .feature-row .feature-img { flex: 0 0 100%; max-width: 100%; }
            .footer-main { grid-template-columns: 1fr 1fr; }
        }
        @media (max-width: 768px) {
            :root { --header-h: 100px; }
            .header-top { padding: 10px 0; }
            .logo { font-size: 1.2rem; }
            .header-actions .search-box input { width: 100px; }
            .mobile-menu-toggle { display: block; }
            .nav-channels {
                display: none; flex-direction: column; align-items: stretch;
                padding: 12px 0 16px; gap: 6px;
            }
            .nav-channels.open { display: flex; }
            .nav-channels a { padding: 10px 18px; border-radius: var(--radius-sm); }
            .page-hero { padding: 60px 0; min-height: 240px; }
            .page-hero h1 { font-size: 2rem; }
            .page-hero p { font-size: 1rem; }
            .section-title { font-size: 1.6rem; }
            .card-grid { grid-template-columns: 1fr; }
            .steps-grid { grid-template-columns: 1fr; }
            .stats-grid { grid-template-columns: 1fr 1fr; }
            .cta-block { padding: 36px 24px; }
            .cta-block h2 { font-size: 1.5rem; }
            .footer-main { grid-template-columns: 1fr; text-align: center; }
            .footer-brand p { margin: 0 auto; }
            .footer-bottom { flex-direction: column; text-align: center; }
            .section-block { padding: 48px 0; }
        }
        @media (max-width: 520px) {
            .header-actions .search-box { display: none; }
            .page-hero h1 { font-size: 1.6rem; }
            .stats-grid { grid-template-columns: 1fr; }
            .btn { padding: 10px 22px; font-size: 0.9rem; }
            .container { padding: 0 16px; }
        }

        /* ===== 辅助 ===== */
        .text-center { text-align: center; }
        .mt-2 { margin-top: 1rem; }
        .mb-2 { margin-bottom: 1rem; }
        .gap-2 { gap: 0.75rem; }
        .flex-center { display: flex; align-items: center; justify-content: center; }
        .divider {
            width: 60px; height: 4px; background: var(--secondary);
            border-radius: 4px; margin: 0 auto 1.2rem;
        }
        a:focus-visible, button:focus-visible {
            outline: 3px solid var(--secondary);
            outline-offset: 2px;
        }

/* roulang page: article */
/* ===== Design Tokens ===== */
:root {
  --primary: #0f1b2d;
  --primary-light: #1a2d4a;
  --primary-mid: #2a3f5e;
  --accent: #d4a843;
  --accent-hover: #c49a35;
  --accent-light: #f0d68a;
  --bg: #ffffff;
  --bg-alt: #f5f7fa;
  --bg-card: #ffffff;
  --bg-dark: #0a1424;
  --text: #1a1a2e;
  --text-body: #2d3748;
  --text-light: #6b7280;
  --text-muted: #9ca3af;
  --text-white: #ffffff;
  --border: #e5e7eb;
  --border-light: #f0f0f5;
  --radius: 16px;
  --radius-sm: 10px;
  --radius-xs: 6px;
  --shadow: 0 4px 24px rgba(0,0,0,0.07);
  --shadow-hover: 0 12px 48px rgba(0,0,0,0.12);
  --shadow-card: 0 2px 16px rgba(0,0,0,0.05);
  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --font: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif;
  --max-width: 1200px;
  --header-h: 72px;
  --nav-h: 52px;
}

/* ===== Reset & Base ===== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-font-smoothing: antialiased; }
body {
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.7;
  color: var(--text-body);
  background: var(--bg);
  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 { outline: 2px solid var(--accent); outline-offset: 2px; border-radius: var(--radius-xs); }
button { cursor: pointer; font-family: var(--font); border: none; background: none; }
button:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; border-radius: var(--radius-xs); }
input, textarea { font-family: var(--font); border: 1px solid var(--border); border-radius: var(--radius-sm); padding: 10px 16px; font-size: 15px; transition: var(--transition); width: 100%; }
input:focus, textarea:focus { border-color: var(--accent); box-shadow: 0 0 0 3px rgba(212,168,67,0.15); outline: none; }
::selection { background: var(--accent); color: var(--text-white); }

/* ===== Container ===== */
.container { width: 100%; max-width: var(--max-width); margin: 0 auto; padding: 0 24px; }
@media (max-width: 768px) { .container { padding: 0 16px; } }

/* ===== Site Header ===== */
.site-header {
  position: sticky; top: 0; z-index: 100;
  background: rgba(15,27,45,0.97);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(212,168,67,0.15);
}
.header-inner {
  display: flex; align-items: center; justify-content: space-between;
  height: var(--header-h); max-width: var(--max-width); margin: 0 auto; padding: 0 24px;
}
.logo {
  display: flex; align-items: center; gap: 10px;
  font-size: 22px; font-weight: 700; color: var(--text-white);
  letter-spacing: 0.5px;
}
.logo i { color: var(--accent); font-size: 26px; }
.logo:hover { color: var(--accent); }
.header-actions { display: flex; align-items: center; gap: 16px; }
.header-search { position: relative; }
.header-search input {
  width: 200px; padding: 8px 16px 8px 38px; border-radius: 30px;
  background: rgba(255,255,255,0.08); border: 1px solid rgba(255,255,255,0.12);
  color: var(--text-white); font-size: 14px;
}
.header-search input::placeholder { color: var(--text-muted); }
.header-search input:focus { background: rgba(255,255,255,0.14); border-color: var(--accent); width: 240px; }
.header-search i { position: absolute; left: 14px; top: 50%; transform: translateY(-50%); color: var(--text-muted); font-size: 14px; }
.header-cta {
  padding: 8px 22px; background: var(--accent); color: var(--primary);
  border-radius: 30px; font-weight: 600; font-size: 14px;
  transition: var(--transition);
}
.header-cta:hover { background: var(--accent-hover); color: var(--primary); transform: translateY(-1px); box-shadow: 0 4px 16px rgba(212,168,67,0.35); }
.mobile-toggle { display: none; color: var(--text-white); font-size: 24px; padding: 4px 8px; }

/* ===== Nav Channels ===== */
.nav-channels-wrap {
  background: var(--primary-light);
  border-bottom: 1px solid rgba(212,168,67,0.08);
}
.nav-channels {
  display: flex; align-items: center; gap: 4px;
  max-width: var(--max-width); margin: 0 auto; padding: 0 24px;
  height: var(--nav-h); overflow-x: auto; scrollbar-width: none;
  -ms-overflow-style: none;
}
.nav-channels::-webkit-scrollbar { display: none; }
.nav-channels a {
  display: flex; align-items: center; gap: 6px;
  padding: 8px 18px; border-radius: 30px;
  font-size: 14px; font-weight: 500; color: rgba(255,255,255,0.75);
  white-space: nowrap; transition: var(--transition);
  border: 1px solid transparent;
}
.nav-channels a i { font-size: 14px; }
.nav-channels a:hover { color: var(--text-white); background: rgba(255,255,255,0.06); }
.nav-channels a.active {
  color: var(--primary); background: var(--accent);
  font-weight: 600; box-shadow: 0 2px 12px rgba(212,168,67,0.3);
}
.nav-channels a.active:hover { color: var(--primary); background: var(--accent-hover); }

/* ===== Article Page ===== */
.article-banner {
  position: relative; height: 280px; display: flex; align-items: center;
  background: var(--bg-dark) url('/assets/images/backpic/back-2.png') center/cover no-repeat;
}
.article-banner::before {
  content: ''; position: absolute; inset: 0;
  background: linear-gradient(135deg, rgba(15,27,45,0.85) 0%, rgba(10,20,36,0.7) 100%);
}
.article-banner .container { position: relative; z-index: 2; }
.article-banner h1 {
  font-size: 36px; font-weight: 800; color: var(--text-white);
  line-height: 1.3; max-width: 800px;
}
.article-meta-bar {
  display: flex; flex-wrap: wrap; align-items: center; gap: 16px;
  margin-top: 12px;
}
.article-meta-bar span {
  display: flex; align-items: center; gap: 6px;
  font-size: 14px; color: rgba(255,255,255,0.7);
}
.article-meta-bar span i { color: var(--accent); }
.article-meta-bar .cat-tag {
  padding: 4px 14px; background: var(--accent); color: var(--primary);
  border-radius: 20px; font-size: 13px; font-weight: 600;
}

.article-main-wrap {
  padding: 60px 0; background: var(--bg-alt);
}
.article-layout {
  display: grid; grid-template-columns: 1fr 320px; gap: 48px;
}
.article-content {
  background: var(--bg-card); border-radius: var(--radius);
  padding: 48px; box-shadow: var(--shadow-card);
}
.article-content .content-body {
  font-size: 16px; line-height: 1.9; color: var(--text-body);
}
.article-content .content-body p { margin-bottom: 1.4em; }
.article-content .content-body h2 { font-size: 22px; font-weight: 700; color: var(--primary); margin: 1.6em 0 0.6em; }
.article-content .content-body h3 { font-size: 18px; font-weight: 600; color: var(--primary-light); margin: 1.4em 0 0.5em; }
.article-content .content-body ul, .article-content .content-body ol { padding-left: 24px; margin-bottom: 1.4em; }
.article-content .content-body li { margin-bottom: 0.5em; }
.article-content .content-body a { color: var(--accent); font-weight: 500; text-decoration: underline; }
.article-content .content-body a:hover { color: var(--accent-hover); }
.article-content .content-body blockquote {
  border-left: 4px solid var(--accent); padding: 16px 24px;
  margin: 1.4em 0; background: var(--bg-alt); border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  color: var(--text-light); font-style: italic;
}
.article-content .content-body img { border-radius: var(--radius-sm); margin: 1.4em 0; }
.article-content .content-body table { width: 100%; border-collapse: collapse; margin: 1.4em 0; }
.article-content .content-body th, .article-content .content-body td {
  padding: 10px 16px; border: 1px solid var(--border); text-align: left;
}
.article-content .content-body th { background: var(--bg-alt); font-weight: 600; color: var(--primary); }

.article-not-found {
  text-align: center; padding: 80px 40px;
}
.article-not-found i { font-size: 64px; color: var(--text-muted); margin-bottom: 20px; }
.article-not-found h2 { font-size: 28px; color: var(--primary); margin-bottom: 12px; }
.article-not-found p { color: var(--text-light); margin-bottom: 24px; }
.article-not-found .btn { display: inline-flex; }

/* ===== Sidebar ===== */
.article-sidebar { display: flex; flex-direction: column; gap: 32px; }
.sidebar-card {
  background: var(--bg-card); border-radius: var(--radius);
  padding: 28px 24px; box-shadow: var(--shadow-card);
}
.sidebar-card h3 {
  font-size: 18px; font-weight: 700; color: var(--primary);
  margin-bottom: 18px; padding-bottom: 12px;
  border-bottom: 2px solid var(--border-light);
  display: flex; align-items: center; gap: 8px;
}
.sidebar-card h3 i { color: var(--accent); }
.sidebar-list { list-style: none; }
.sidebar-list li { margin-bottom: 10px; }
.sidebar-list a {
  display: flex; align-items: center; gap: 10px;
  padding: 8px 12px; border-radius: var(--radius-sm);
  font-size: 14px; color: var(--text-body);
  transition: var(--transition);
}
.sidebar-list a:hover { background: var(--bg-alt); color: var(--accent); }
.sidebar-list a i { color: var(--accent); font-size: 12px; }

.sidebar-tags { display: flex; flex-wrap: wrap; gap: 8px; }
.sidebar-tags a {
  padding: 5px 14px; background: var(--bg-alt); border-radius: 20px;
  font-size: 13px; color: var(--text-light); transition: var(--transition);
}
.sidebar-tags a:hover { background: var(--accent); color: var(--primary); }

/* ===== Buttons ===== */
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 12px 32px; border-radius: 30px;
  font-weight: 600; font-size: 15px; transition: var(--transition);
  border: none; cursor: pointer; text-decoration: none;
}
.btn-primary { background: var(--accent); color: var(--primary); }
.btn-primary:hover { background: var(--accent-hover); color: var(--primary); transform: translateY(-2px); box-shadow: 0 8px 24px rgba(212,168,67,0.35); }
.btn-outline { background: transparent; color: var(--text-white); border: 2px solid rgba(255,255,255,0.3); }
.btn-outline:hover { border-color: var(--accent); color: var(--accent); transform: translateY(-2px); }
.btn-dark { background: var(--primary); color: var(--text-white); }
.btn-dark:hover { background: var(--primary-light); color: var(--text-white); transform: translateY(-2px); box-shadow: 0 8px 24px rgba(15,27,45,0.3); }

/* ===== CTA Section ===== */
.cta-section {
  padding: 80px 0; background: var(--bg-dark);
  position: relative; overflow: hidden;
}
.cta-section::before {
  content: ''; position: absolute; inset: 0;
  background: url('/assets/images/backpic/back-3.png') center/cover no-repeat;
  opacity: 0.12; pointer-events: none;
}
.cta-box {
  position: relative; z-index: 2; text-align: center; max-width: 700px; margin: 0 auto;
}
.cta-box h2 { font-size: 32px; font-weight: 800; color: var(--text-white); margin-bottom: 16px; }
.cta-box p { font-size: 16px; color: rgba(255,255,255,0.7); margin-bottom: 32px; }
.cta-btns { display: flex; justify-content: center; gap: 16px; flex-wrap: wrap; }

/* ===== Footer ===== */
.site-footer {
  background: var(--primary); color: rgba(255,255,255,0.8);
  padding: 60px 0 0;
}
.footer-main {
  display: grid; grid-template-columns: 1.8fr 1fr 1fr 1fr; gap: 40px;
  padding-bottom: 40px; border-bottom: 1px solid rgba(255,255,255,0.08);
}
.footer-brand .logo { font-size: 20px; margin-bottom: 16px; }
.footer-brand p { font-size: 14px; line-height: 1.8; color: rgba(255,255,255,0.6); max-width: 340px; }
.footer-col h4 { font-size: 15px; font-weight: 700; color: var(--text-white); margin-bottom: 18px; letter-spacing: 0.5px; }
.footer-col a {
  display: block; font-size: 14px; color: rgba(255,255,255,0.6);
  padding: 5px 0; transition: var(--transition);
}
.footer-col a:hover { color: var(--accent); padding-left: 4px; }
.footer-bottom {
  display: flex; align-items: center; justify-content: space-between;
  flex-wrap: wrap; gap: 12px; padding: 24px 0;
  font-size: 13px; color: rgba(255,255,255,0.5);
}
.footer-social { display: flex; gap: 12px; }
.footer-social a {
  display: flex; align-items: center; justify-content: center;
  width: 36px; height: 36px; border-radius: 50%;
  background: rgba(255,255,255,0.06); color: rgba(255,255,255,0.6);
  font-size: 16px; transition: var(--transition);
}
.footer-social a:hover { background: var(--accent); color: var(--primary); }

/* ===== Back to Top ===== */
.back-top {
  position: fixed; bottom: 32px; right: 32px; z-index: 50;
  width: 48px; height: 48px; border-radius: 50%;
  background: var(--accent); color: var(--primary);
  font-size: 20px; display: flex; align-items: center; justify-content: center;
  box-shadow: 0 4px 20px rgba(212,168,67,0.3);
  opacity: 0; visibility: hidden; transition: var(--transition);
  transform: translateY(20px);
}
.back-top.show { opacity: 1; visibility: visible; transform: translateY(0); }
.back-top:hover { background: var(--accent-hover); transform: translateY(-4px); }

/* ===== Responsive ===== */
@media (max-width: 1024px) {
  .article-layout { grid-template-columns: 1fr; gap: 32px; }
  .article-sidebar { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }
  .footer-main { grid-template-columns: 1fr 1fr; gap: 32px; }
}
@media (max-width: 768px) {
  .header-inner { height: 60px; padding: 0 16px; }
  .logo { font-size: 18px; }
  .logo i { font-size: 22px; }
  .header-search { display: none; }
  .header-cta { padding: 6px 16px; font-size: 13px; }
  .mobile-toggle { display: block; }
  .nav-channels { padding: 0 16px; height: 44px; }
  .nav-channels a { padding: 6px 14px; font-size: 13px; }
  .article-banner { height: 200px; }
  .article-banner h1 { font-size: 24px; }
  .article-content { padding: 24px 20px; }
  .article-meta-bar { gap: 10px; }
  .article-meta-bar span { font-size: 13px; }
  .article-sidebar { grid-template-columns: 1fr; }
  .footer-main { grid-template-columns: 1fr; gap: 24px; }
  .footer-bottom { flex-direction: column; text-align: center; }
  .cta-box h2 { font-size: 26px; }
  .back-top { bottom: 20px; right: 20px; width: 42px; height: 42px; font-size: 18px; }
}
@media (max-width: 520px) {
  .article-banner h1 { font-size: 20px; }
  .article-content { padding: 16px; }
  .article-content .content-body { font-size: 15px; }
  .cta-box h2 { font-size: 22px; }
  .cta-btns { flex-direction: column; align-items: center; }
  .btn { width: 100%; justify-content: center; }
}