/* roulang page: index */
/* ========== 设计变量 ========== */
        :root {
            --color-primary: #0a1628;
            --color-primary-light: #132040;
            --color-accent: #f0a500;
            --color-accent-hover: #d49400;
            --color-accent-light: #fff7e6;
            --color-highlight: #e63946;
            --color-white: #ffffff;
            --color-bg: #f5f6f8;
            --color-bg-alt: #eef0f4;
            --color-bg-dark: #0a1628;
            --color-text: #1a1d28;
            --color-text-secondary: #5a6072;
            --color-text-muted: #8b8fa3;
            --color-text-light: #b0b5c4;
            --color-border: #e2e5ed;
            --color-border-light: #eef0f5;
            --color-success: #10b981;
            --color-card-shadow: 0 2px 12px rgba(10, 22, 40, 0.07);
            --color-card-shadow-hover: 0 8px 32px rgba(10, 22, 40, 0.13);
            --color-nav-shadow: 0 1px 3px rgba(10, 22, 40, 0.06);
            --radius-sm: 6px;
            --radius-md: 10px;
            --radius-lg: 16px;
            --radius-xl: 20px;
            --radius-full: 999px;
            --spacing-xs: 8px;
            --spacing-sm: 14px;
            --spacing-md: 22px;
            --spacing-lg: 32px;
            --spacing-xl: 48px;
            --spacing-2xl: 64px;
            --spacing-3xl: 80px;
            --font-sans: 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', system-ui, -apple-system, sans-serif;
            --font-heading: 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', system-ui, -apple-system, sans-serif;
            --max-width: 1240px;
            --nav-height: 62px;
            --transition-fast: 0.15s ease;
            --transition-normal: 0.25s ease;
            --transition-slow: 0.35s cubic-bezier(0.4, 0, 0.2, 1);
        }

        /* ========== Reset & Base ========== */
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }

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

        body {
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.7;
            color: var(--color-text);
            background-color: var(--color-bg);
            min-height: 100vh;
            overflow-x: hidden;
        }

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

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

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

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

        ul,
        ol {
            list-style: none;
        }

        /* ========== 容器 ========== */
        .container {
            width: 100%;
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 var(--spacing-md);
        }

        @media (max-width: 768px) {
            .container {
                padding: 0 var(--spacing-sm);
            }
        }

        /* ========== Header / Nav ========== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: var(--color-white);
            border-bottom: 1px solid var(--color-border-light);
            box-shadow: var(--color-nav-shadow);
            height: var(--nav-height);
            display: flex;
            align-items: center;
        }

        .site-header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
            gap: var(--spacing-md);
        }

        .nav-logo {
            display: flex;
            align-items: center;
            gap: 9px;
            font-family: var(--font-heading);
            font-weight: 700;
            font-size: 1.25rem;
            color: var(--color-primary);
            white-space: nowrap;
            letter-spacing: 0.3px;
            flex-shrink: 0;
        }

        .nav-logo .logo-icon {
            width: 34px;
            height: 34px;
            border-radius: var(--radius-sm);
            background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-light) 100%);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--color-accent);
            font-size: 1.1rem;
            font-weight: 800;
            flex-shrink: 0;
        }

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

        .nav-links a {
            padding: 8px 16px;
            border-radius: var(--radius-full);
            font-size: 0.92rem;
            font-weight: 500;
            color: var(--color-text-secondary);
            transition: all var(--transition-fast);
            white-space: nowrap;
            position: relative;
        }

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

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

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

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

        .nav-search {
            display: flex;
            align-items: center;
            background: var(--color-bg);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-full);
            padding: 7px 14px;
            gap: 8px;
            transition: all var(--transition-fast);
            width: 200px;
        }

        .nav-search:focus-within {
            border-color: var(--color-accent);
            box-shadow: 0 0 0 3px rgba(240, 165, 0, 0.1);
            background: var(--color-white);
        }

        .nav-search svg {
            width: 16px;
            height: 16px;
            color: var(--color-text-muted);
            flex-shrink: 0;
        }

        .nav-search input {
            border: none;
            background: transparent;
            width: 100%;
            font-size: 0.9rem;
            color: var(--color-text);
        }

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

        .btn-nav-cta {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 9px 20px;
            border-radius: var(--radius-full);
            font-weight: 600;
            font-size: 0.9rem;
            background: var(--color-accent);
            color: var(--color-primary);
            transition: all var(--transition-normal);
            white-space: nowrap;
            letter-spacing: 0.2px;
        }

        .btn-nav-cta:hover {
            background: var(--color-accent-hover);
            transform: translateY(-1px);
            box-shadow: 0 4px 14px rgba(240, 165, 0, 0.35);
        }

        .btn-nav-cta:active {
            transform: translateY(0);
            box-shadow: none;
        }

        /* 移动端菜单按钮 */
        .mobile-menu-btn {
            display: none;
            width: 40px;
            height: 40px;
            align-items: center;
            justify-content: center;
            border-radius: var(--radius-sm);
            background: var(--color-bg);
            border: 1px solid var(--color-border);
            flex-shrink: 0;
            transition: all var(--transition-fast);
        }

        .mobile-menu-btn:hover {
            background: var(--color-bg-alt);
        }

        .mobile-menu-btn svg {
            width: 20px;
            height: 20px;
            color: var(--color-text);
        }

        /* 移动端导航覆盖层 */
        .mobile-nav-overlay {
            display: none;
            position: fixed;
            top: var(--nav-height);
            left: 0;
            right: 0;
            bottom: 0;
            background: rgba(10, 22, 40, 0.5);
            z-index: 999;
        }

        .mobile-nav-panel {
            display: none;
            position: fixed;
            top: var(--nav-height);
            right: 0;
            width: 300px;
            max-width: 85vw;
            bottom: 0;
            background: var(--color-white);
            z-index: 1001;
            padding: var(--spacing-md);
            flex-direction: column;
            gap: var(--spacing-sm);
            box-shadow: -4px 0 20px rgba(0, 0, 0, 0.12);
            overflow-y: auto;
        }

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

        .mobile-nav-overlay.is-open {
            display: block;
        }

        .mobile-nav-panel a {
            display: block;
            padding: 12px 16px;
            border-radius: var(--radius-md);
            font-weight: 500;
            color: var(--color-text-secondary);
            transition: all var(--transition-fast);
            font-size: 0.95rem;
        }

        .mobile-nav-panel a:hover,
        .mobile-nav-panel a.active {
            background: var(--color-primary);
            color: var(--color-white);
        }

        .mobile-nav-panel .nav-search-mobile {
            display: flex;
            align-items: center;
            background: var(--color-bg);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-full);
            padding: 10px 16px;
            gap: 8px;
            margin-bottom: 6px;
        }

        .mobile-nav-panel .nav-search-mobile input {
            border: none;
            background: transparent;
            width: 100%;
            font-size: 0.9rem;
        }

        @media (max-width: 860px) {
            .nav-links {
                display: none;
            }
            .nav-search {
                display: none;
            }
            .mobile-menu-btn {
                display: flex;
            }
            .btn-nav-cta {
                font-size: 0.82rem;
                padding: 8px 14px;
            }
        }

        @media (min-width: 861px) {
            .mobile-nav-panel,
            .mobile-nav-overlay {
                display: none !important;
            }
        }

        /* ========== Hero ========== */
        .hero {
            position: relative;
            background: url('/assets/images/backpic/back-1.png') center center / cover no-repeat;
            min-height: 520px;
            display: flex;
            align-items: center;
            justify-content: center;
            text-align: center;
            overflow: hidden;
        }

        .hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(10, 22, 40, 0.65) 0%, rgba(10, 22, 40, 0.78) 60%, rgba(10, 22, 40, 0.88) 100%);
            z-index: 1;
        }

        .hero-content {
            position: relative;
            z-index: 2;
            max-width: 720px;
            padding: var(--spacing-2xl) var(--spacing-md);
        }

        .hero-badge {
            display: inline-block;
            padding: 5px 16px;
            border-radius: var(--radius-full);
            font-size: 0.85rem;
            font-weight: 600;
            letter-spacing: 0.4px;
            background: rgba(240, 165, 0, 0.2);
            color: var(--color-accent);
            border: 1px solid rgba(240, 165, 0, 0.3);
            margin-bottom: var(--spacing-md);
            backdrop-filter: blur(6px);
        }

        .hero h1 {
            font-family: var(--font-heading);
            font-size: 2.8rem;
            font-weight: 800;
            color: var(--color-white);
            letter-spacing: 0.5px;
            line-height: 1.25;
            margin-bottom: var(--spacing-sm);
            text-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
        }

        .hero p {
            font-size: 1.15rem;
            color: rgba(255, 255, 255, 0.85);
            margin-bottom: var(--spacing-lg);
            line-height: 1.6;
            max-width: 540px;
            margin-left: auto;
            margin-right: auto;
        }

        .hero-btns {
            display: flex;
            gap: 12px;
            flex-wrap: wrap;
            justify-content: center;
        }

        .btn-hero-primary {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 13px 28px;
            border-radius: var(--radius-full);
            font-weight: 700;
            font-size: 1rem;
            background: var(--color-accent);
            color: var(--color-primary);
            transition: all var(--transition-normal);
            letter-spacing: 0.3px;
        }

        .btn-hero-primary:hover {
            background: var(--color-accent-hover);
            transform: translateY(-2px);
            box-shadow: 0 8px 28px rgba(240, 165, 0, 0.4);
        }

        .btn-hero-secondary {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 13px 28px;
            border-radius: var(--radius-full);
            font-weight: 600;
            font-size: 1rem;
            background: rgba(255, 255, 255, 0.12);
            color: var(--color-white);
            border: 1px solid rgba(255, 255, 255, 0.3);
            transition: all var(--transition-normal);
            letter-spacing: 0.3px;
            backdrop-filter: blur(4px);
        }

        .btn-hero-secondary:hover {
            background: rgba(255, 255, 255, 0.2);
            border-color: rgba(255, 255, 255, 0.5);
            transform: translateY(-2px);
        }

        @media (max-width: 768px) {
            .hero {
                min-height: 400px;
            }
            .hero h1 {
                font-size: 2rem;
            }
            .hero p {
                font-size: 1rem;
            }
            .btn-hero-primary,
            .btn-hero-secondary {
                padding: 11px 22px;
                font-size: 0.9rem;
            }
        }

        @media (max-width: 520px) {
            .hero {
                min-height: 340px;
            }
            .hero h1 {
                font-size: 1.6rem;
            }
            .hero p {
                font-size: 0.9rem;
            }
            .hero-btns {
                flex-direction: column;
                align-items: center;
            }
        }

        /* ========== 板块通用 ========== */
        .section {
            padding: var(--spacing-3xl) 0;
        }

        .section-alt {
            background: var(--color-white);
        }

        .section-dark {
            background: var(--color-bg-dark);
            color: var(--color-white);
        }

        .section-header {
            text-align: center;
            margin-bottom: var(--spacing-xl);
        }

        .section-header .section-label {
            display: inline-block;
            font-size: 0.82rem;
            font-weight: 700;
            letter-spacing: 0.8px;
            text-transform: uppercase;
            color: var(--color-accent);
            background: var(--color-accent-light);
            padding: 4px 14px;
            border-radius: var(--radius-full);
            margin-bottom: var(--spacing-sm);
        }

        .section-header h2 {
            font-family: var(--font-heading);
            font-size: 2rem;
            font-weight: 700;
            color: var(--color-primary);
            letter-spacing: 0.3px;
            margin-bottom: var(--spacing-xs);
        }

        .section-header p {
            color: var(--color-text-secondary);
            font-size: 1rem;
            max-width: 560px;
            margin: 0 auto;
        }

        .section-dark .section-header h2 {
            color: var(--color-white);
        }
        .section-dark .section-header p {
            color: var(--color-text-light);
        }
        .section-dark .section-label {
            background: rgba(240, 165, 0, 0.18);
            color: var(--color-accent);
        }

        @media (max-width: 768px) {
            .section {
                padding: var(--spacing-2xl) 0;
            }
            .section-header h2 {
                font-size: 1.55rem;
            }
            .section-header {
                margin-bottom: var(--spacing-lg);
            }
        }

        /* ========== 板块：核心说明 ========== */
        .features-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: var(--spacing-md);
        }

        .feature-card {
            background: var(--color-white);
            border-radius: var(--radius-lg);
            padding: var(--spacing-lg) var(--spacing-md);
            text-align: center;
            border: 1px solid var(--color-border-light);
            transition: all var(--transition-normal);
            box-shadow: var(--color-card-shadow);
        }

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

        .feature-card .feature-icon {
            width: 56px;
            height: 56px;
            border-radius: var(--radius-md);
            background: var(--color-accent-light);
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto var(--spacing-sm);
            font-size: 1.6rem;
            color: var(--color-accent);
        }

        .feature-card h3 {
            font-family: var(--font-heading);
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--color-primary);
            margin-bottom: 6px;
        }

        .feature-card p {
            font-size: 0.9rem;
            color: var(--color-text-secondary);
            line-height: 1.55;
        }

        @media (max-width: 768px) {
            .features-grid {
                grid-template-columns: 1fr;
                gap: var(--spacing-sm);
            }
        }

        /* ========== 板块：分类入口 ========== */
        .category-entry-grid {
            display: grid;
            grid-template-columns: 1fr;
            gap: var(--spacing-md);
            max-width: 600px;
            margin: 0 auto;
        }

        .category-entry-card {
            display: flex;
            align-items: center;
            gap: var(--spacing-md);
            background: var(--color-white);
            border-radius: var(--radius-lg);
            overflow: hidden;
            border: 1px solid var(--color-border-light);
            box-shadow: var(--color-card-shadow);
            transition: all var(--transition-normal);
            cursor: pointer;
        }

        .category-entry-card:hover {
            transform: translateY(-3px);
            box-shadow: var(--color-card-shadow-hover);
            border-color: transparent;
        }

        .category-entry-card .cat-img {
            width: 160px;
            height: 130px;
            flex-shrink: 0;
            object-fit: cover;
        }

        .category-entry-card .cat-info {
            padding: var(--spacing-sm) var(--spacing-md);
            flex: 1;
        }

        .category-entry-card .cat-tag {
            display: inline-block;
            font-size: 0.78rem;
            font-weight: 600;
            color: var(--color-accent);
            background: var(--color-accent-light);
            padding: 3px 10px;
            border-radius: var(--radius-full);
            margin-bottom: 6px;
        }

        .category-entry-card h3 {
            font-family: var(--font-heading);
            font-size: 1.15rem;
            font-weight: 700;
            color: var(--color-primary);
            margin-bottom: 4px;
        }

        .category-entry-card p {
            font-size: 0.88rem;
            color: var(--color-text-secondary);
            line-height: 1.5;
        }

        @media (max-width: 520px) {
            .category-entry-card {
                flex-direction: column;
            }
            .category-entry-card .cat-img {
                width: 100%;
                height: 160px;
            }
        }

        /* ========== 板块：最新资讯列表（CMS数据） ========== */
        .posts-list {
            display: grid;
            grid-template-columns: 1fr;
            gap: var(--spacing-sm);
            max-width: 800px;
            margin: 0 auto;
        }

        .post-item {
            display: flex;
            gap: var(--spacing-md);
            background: var(--color-white);
            border-radius: var(--radius-lg);
            padding: var(--spacing-md);
            border: 1px solid var(--color-border-light);
            box-shadow: var(--color-card-shadow);
            transition: all var(--transition-normal);
            align-items: flex-start;
        }

        .post-item:hover {
            transform: translateY(-2px);
            box-shadow: var(--color-card-shadow-hover);
            border-color: transparent;
        }

        .post-item .post-thumb {
            width: 140px;
            height: 100px;
            border-radius: var(--radius-md);
            object-fit: cover;
            flex-shrink: 0;
            background: var(--color-bg-alt);
        }

        .post-item .post-content {
            flex: 1;
            min-width: 0;
        }

        .post-item .post-meta {
            display: flex;
            gap: 10px;
            align-items: center;
            flex-wrap: wrap;
            margin-bottom: 4px;
        }

        .post-item .post-cat {
            font-size: 0.75rem;
            font-weight: 600;
            color: var(--color-accent);
            background: var(--color-accent-light);
            padding: 2px 10px;
            border-radius: var(--radius-full);
        }

        .post-item .post-date {
            font-size: 0.78rem;
            color: var(--color-text-muted);
        }

        .post-item h3 {
            font-family: var(--font-heading);
            font-size: 1.05rem;
            font-weight: 700;
            color: var(--color-primary);
            margin-bottom: 4px;
            line-height: 1.4;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .post-item h3 a {
            color: inherit;
        }

        .post-item h3 a:hover {
            color: var(--color-accent);
        }

        .post-item .post-excerpt {
            font-size: 0.88rem;
            color: var(--color-text-secondary);
            line-height: 1.5;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .posts-empty {
            text-align: center;
            padding: var(--spacing-xl);
            color: var(--color-text-muted);
            font-size: 0.95rem;
            background: var(--color-white);
            border-radius: var(--radius-lg);
            border: 2px dashed var(--color-border);
        }

        @media (max-width: 600px) {
            .post-item {
                flex-direction: column;
            }
            .post-item .post-thumb {
                width: 100%;
                height: 160px;
            }
        }

        /* ========== 板块：数据统计 ========== */
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: var(--spacing-md);
            text-align: center;
        }

        .stat-card {
            background: var(--color-white);
            border-radius: var(--radius-lg);
            padding: var(--spacing-lg) var(--spacing-md);
            border: 1px solid var(--color-border-light);
            box-shadow: var(--color-card-shadow);
            transition: all var(--transition-normal);
        }

        .stat-card:hover {
            transform: translateY(-3px);
            box-shadow: var(--color-card-shadow-hover);
        }

        .stat-card .stat-number {
            font-family: var(--font-heading);
            font-size: 2.4rem;
            font-weight: 800;
            color: var(--color-primary);
            margin-bottom: 2px;
            letter-spacing: -0.5px;
        }

        .stat-card .stat-label {
            font-size: 0.9rem;
            color: var(--color-text-secondary);
            font-weight: 500;
        }

        .stat-card .stat-icon {
            font-size: 1.5rem;
            margin-bottom: 6px;
            color: var(--color-accent);
        }

        @media (max-width: 768px) {
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: var(--spacing-sm);
            }
            .stat-card .stat-number {
                font-size: 1.8rem;
            }
        }

        @media (max-width: 420px) {
            .stats-grid {
                grid-template-columns: 1fr 1fr;
                gap: 10px;
            }
        }

        /* ========== 板块：热门内容网格 ========== */
        .hot-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: var(--spacing-md);
        }

        .hot-card {
            background: var(--color-white);
            border-radius: var(--radius-lg);
            overflow: hidden;
            border: 1px solid var(--color-border-light);
            box-shadow: var(--color-card-shadow);
            transition: all var(--transition-normal);
        }

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

        .hot-card img {
            width: 100%;
            height: 180px;
            object-fit: cover;
        }

        .hot-card .hot-card-body {
            padding: var(--spacing-sm) var(--spacing-md) var(--spacing-md);
        }

        .hot-card .hot-badge {
            display: inline-block;
            font-size: 0.72rem;
            font-weight: 700;
            padding: 3px 10px;
            border-radius: var(--radius-full);
            background: var(--color-highlight);
            color: #fff;
            margin-bottom: 6px;
        }

        .hot-card h3 {
            font-family: var(--font-heading);
            font-size: 1rem;
            font-weight: 700;
            color: var(--color-primary);
            margin-bottom: 4px;
            line-height: 1.4;
        }

        .hot-card p {
            font-size: 0.84rem;
            color: var(--color-text-secondary);
            line-height: 1.5;
        }

        @media (max-width: 768px) {
            .hot-grid {
                grid-template-columns: 1fr;
                gap: var(--spacing-sm);
            }
            .hot-card img {
                height: 200px;
            }
        }

        /* ========== FAQ 板块 ========== */
        .faq-list {
            max-width: 760px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .faq-item {
            background: var(--color-white);
            border-radius: var(--radius-md);
            border: 1px solid var(--color-border-light);
            overflow: hidden;
            transition: all var(--transition-fast);
        }

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

        .faq-item summary {
            padding: var(--spacing-md);
            font-weight: 600;
            font-size: 0.98rem;
            color: var(--color-primary);
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: var(--spacing-sm);
            list-style: none;
        }

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

        .faq-item summary::after {
            content: '+';
            font-size: 1.3rem;
            color: var(--color-text-muted);
            transition: transform var(--transition-fast);
            flex-shrink: 0;
        }

        .faq-item[open] summary::after {
            content: '−';
            transform: rotate(0deg);
            color: var(--color-accent);
        }

        .faq-item .faq-answer {
            padding: 0 var(--spacing-md) var(--spacing-md);
            font-size: 0.9rem;
            color: var(--color-text-secondary);
            line-height: 1.65;
        }

        /* ========== CTA 板块 ========== */
        .cta-section {
            background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-light) 100%);
            text-align: center;
            padding: var(--spacing-3xl) var(--spacing-md);
            color: var(--color-white);
        }

        .cta-section h2 {
            font-family: var(--font-heading);
            font-size: 1.9rem;
            font-weight: 700;
            margin-bottom: var(--spacing-sm);
        }

        .cta-section p {
            font-size: 1rem;
            color: rgba(255, 255, 255, 0.8);
            margin-bottom: var(--spacing-lg);
            max-width: 500px;
            margin-left: auto;
            margin-right: auto;
        }

        .btn-cta {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 14px 32px;
            border-radius: var(--radius-full);
            font-weight: 700;
            font-size: 1.05rem;
            background: var(--color-accent);
            color: var(--color-primary);
            transition: all var(--transition-normal);
            letter-spacing: 0.3px;
        }

        .btn-cta:hover {
            background: var(--color-accent-hover);
            transform: translateY(-3px);
            box-shadow: 0 10px 32px rgba(240, 165, 0, 0.45);
        }

        /* ========== Footer ========== */
        .site-footer {
            background: var(--color-bg-dark);
            color: var(--color-text-light);
            padding: var(--spacing-2xl) 0 var(--spacing-lg);
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            gap: var(--spacing-lg);
            margin-bottom: var(--spacing-lg);
        }

        .footer-brand .footer-logo {
            font-family: var(--font-heading);
            font-weight: 700;
            font-size: 1.2rem;
            color: var(--color-white);
            margin-bottom: 8px;
            display: block;
        }

        .footer-brand p {
            font-size: 0.88rem;
            line-height: 1.6;
            color: var(--color-text-light);
        }

        .footer-col h4 {
            font-size: 0.9rem;
            font-weight: 700;
            color: var(--color-white);
            margin-bottom: 12px;
            letter-spacing: 0.3px;
            text-transform: uppercase;
        }

        .footer-col a {
            display: block;
            font-size: 0.88rem;
            color: var(--color-text-light);
            padding: 4px 0;
            transition: color var(--transition-fast);
        }

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

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding-top: var(--spacing-md);
            text-align: center;
            font-size: 0.82rem;
            color: var(--color-text-muted);
        }

        @media (max-width: 768px) {
            .footer-grid {
                grid-template-columns: 1fr;
                gap: var(--spacing-md);
            }
        }

        /* ========== 工具类 ========== */
        .sr-only {
            position: absolute;
            width: 1px;
            height: 1px;
            padding: 0;
            margin: -1px;
            overflow: hidden;
            clip: rect(0, 0, 0, 0);
            white-space: nowrap;
            border: 0;
        }

        .text-accent {
            color: var(--color-accent);
        }

        /* ========== Focus 可访问性 ========== */
        a:focus-visible,
        button:focus-visible,
        input:focus-visible,
        summary:focus-visible {
            outline: 2px solid var(--color-accent);
            outline-offset: 3px;
            border-radius: 2px;
        }

        .btn-nav-cta:focus-visible,
        .btn-hero-primary:focus-visible,
        .btn-hero-secondary:focus-visible,
        .btn-cta:focus-visible {
            outline: 3px solid var(--color-accent);
            outline-offset: 4px;
        }

/* roulang page: article */
:root {
            --color-primary: #1B2A4A;
            --color-primary-light: #263B66;
            --color-accent: #E8A817;
            --color-accent-hover: #C98F14;
            --color-accent-light: #FFF8E7;
            --color-secondary: #2E5090;
            --color-bg: #F5F6FA;
            --color-white: #FFFFFF;
            --color-text: #1F2937;
            --color-text-strong: #111827;
            --color-text-light: #6B7280;
            --color-text-lighter: #9CA3AF;
            --color-border: #E5E7EB;
            --color-border-light: #F0F1F3;
            --color-card-bg: #FFFFFF;
            --color-tag-bg: #EEF2FF;
            --color-tag-text: #3B5998;
            --color-success: #10B981;
            --color-danger: #EF4444;
            --radius-xs: 6px;
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 16px;
            --radius-xl: 20px;
            --radius-full: 50px;
            --shadow-xs: 0 1px 2px rgba(0, 0, 0, 0.04);
            --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.06), 0 1px 2px rgba(0, 0, 0, 0.04);
            --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.08), 0 2px 4px rgba(0, 0, 0, 0.04);
            --shadow-lg: 0 8px 28px rgba(0, 0, 0, 0.10), 0 4px 8px rgba(0, 0, 0, 0.05);
            --shadow-xl: 0 16px 40px rgba(0, 0, 0, 0.12);
            --font-family: 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', Arial, 'Segoe UI', sans-serif;
            --transition-fast: 0.18s ease;
            --transition-base: 0.25s ease;
            --transition-slow: 0.35s ease;
            --max-width: 1200px;
            --max-width-article: 780px;
            --nav-height: 68px;
        }

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

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

        body {
            font-family: var(--font-family);
            font-size: 16px;
            line-height: 1.7;
            color: var(--color-text);
            background-color: var(--color-bg);
            overflow-x: hidden;
            min-height: 100vh;
        }

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

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

        button {
            cursor: pointer;
            border: none;
            font-family: inherit;
            font-size: inherit;
            transition: all var(--transition-fast);
        }

        input {
            font-family: inherit;
            font-size: inherit;
        }

        ul,
        ol {
            list-style: none;
        }

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

        .container--article {
            max-width: var(--max-width-article);
        }

        .container--wide {
            max-width: 1080px;
        }

        /* ========== HEADER / NAV ========== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: var(--color-white);
            border-bottom: 1px solid var(--color-border-light);
            box-shadow: var(--shadow-xs);
            height: var(--nav-height);
            display: flex;
            align-items: center;
        }

        .site-header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            width: 100%;
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 24px;
        }

        .nav-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.25rem;
            font-weight: 700;
            color: var(--color-primary);
            letter-spacing: -0.02em;
            white-space: nowrap;
            flex-shrink: 0;
        }

        .nav-brand i {
            font-size: 1.35rem;
            color: var(--color-accent);
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 6px;
            margin: 0 20px;
        }

        .nav-links a {
            display: inline-flex;
            align-items: center;
            padding: 8px 16px;
            border-radius: var(--radius-full);
            font-size: 0.92rem;
            font-weight: 500;
            color: var(--color-text-light);
            transition: all var(--transition-fast);
            white-space: nowrap;
            position: relative;
        }

        .nav-links a:hover {
            color: var(--color-primary);
            background: #F5F7FB;
        }

        .nav-links a.active {
            color: var(--color-primary);
            background: #EEF2FB;
            font-weight: 600;
        }

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

        .nav-search {
            display: flex;
            align-items: center;
            background: #F5F6FA;
            border: 1px solid var(--color-border-light);
            border-radius: var(--radius-full);
            padding: 8px 15px;
            gap: 8px;
            transition: all var(--transition-fast);
            min-width: 180px;
        }

        .nav-search:focus-within {
            border-color: var(--color-secondary);
            background: var(--color-white);
            box-shadow: 0 0 0 3px rgba(46, 80, 144, 0.08);
        }

        .nav-search i {
            color: var(--color-text-lighter);
            font-size: 0.85rem;
        }

        .nav-search input {
            border: none;
            background: transparent;
            outline: none;
            font-size: 0.88rem;
            color: var(--color-text);
            width: 100%;
            min-width: 100px;
        }

        .nav-search input::placeholder {
            color: var(--color-text-lighter);
        }

        .btn-cta-nav {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 9px 20px;
            background: var(--color-accent);
            color: #fff;
            font-weight: 600;
            font-size: 0.88rem;
            border-radius: var(--radius-full);
            white-space: nowrap;
            transition: all var(--transition-fast);
        }

        .btn-cta-nav:hover {
            background: var(--color-accent-hover);
            box-shadow: var(--shadow-md);
            transform: translateY(-1px);
        }

        .mobile-menu-toggle {
            display: none;
            background: none;
            border: none;
            font-size: 1.4rem;
            color: var(--color-primary);
            padding: 6px;
        }

        /* ========== ARTICLE BANNER ========== */
        .article-banner {
            position: relative;
            padding: 60px 0 50px;
            background: url('/assets/images/backpic/back-2.png') center/cover no-repeat;
            color: #fff;
            overflow: hidden;
        }

        .article-banner::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(27, 42, 74, 0.82) 0%, rgba(27, 42, 74, 0.92) 100%);
            z-index: 1;
        }

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

        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.75);
            flex-wrap: wrap;
            margin-bottom: 20px;
        }

        .breadcrumb a {
            color: rgba(255, 255, 255, 0.85);
            transition: color var(--transition-fast);
        }

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

        .breadcrumb .sep {
            color: rgba(255, 255, 255, 0.4);
            font-size: 0.7rem;
        }

        .breadcrumb .current {
            color: rgba(255, 255, 255, 0.6);
            pointer-events: none;
        }

        .article-banner .category-tag {
            display: inline-block;
            background: var(--color-accent);
            color: #fff;
            font-size: 0.8rem;
            font-weight: 600;
            padding: 5px 14px;
            border-radius: var(--radius-full);
            margin-bottom: 16px;
            letter-spacing: 0.03em;
        }

        .article-banner h1 {
            font-size: 2rem;
            font-weight: 700;
            line-height: 1.35;
            margin-bottom: 16px;
            letter-spacing: -0.01em;
            color: #fff;
        }

        .article-meta {
            display: flex;
            align-items: center;
            gap: 20px;
            font-size: 0.9rem;
            color: rgba(255, 255, 255, 0.7);
            flex-wrap: wrap;
        }

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

        .article-meta i {
            font-size: 0.8rem;
        }

        /* ========== ARTICLE BODY ========== */
        .article-body-section {
            padding: 48px 0 40px;
            background: var(--color-bg);
        }

        .article-card {
            background: var(--color-white);
            border-radius: var(--radius-lg);
            padding: 44px 48px;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--color-border-light);
        }

        .article-body {
            font-size: 1.05rem;
            line-height: 1.85;
            color: var(--color-text);
            word-break: break-word;
        }

        .article-body h2 {
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--color-primary);
            margin: 36px 0 16px;
            padding-bottom: 10px;
            border-bottom: 2px solid var(--color-border-light);
            line-height: 1.4;
        }

        .article-body h3 {
            font-size: 1.25rem;
            font-weight: 600;
            color: var(--color-text-strong);
            margin: 28px 0 12px;
            line-height: 1.4;
        }

        .article-body h4 {
            font-size: 1.1rem;
            font-weight: 600;
            color: var(--color-text);
            margin: 22px 0 10px;
        }

        .article-body p {
            margin-bottom: 16px;
        }

        .article-body img {
            border-radius: var(--radius-md);
            margin: 24px auto;
            box-shadow: var(--shadow-sm);
            max-width: 100%;
            height: auto;
        }

        .article-body ul,
        .article-body ol {
            margin: 16px 0;
            padding-left: 24px;
        }

        .article-body ul {
            list-style: disc;
        }

        .article-body ol {
            list-style: decimal;
        }

        .article-body li {
            margin-bottom: 8px;
            padding-left: 4px;
        }

        .article-body blockquote {
            border-left: 4px solid var(--color-accent);
            background: var(--color-accent-light);
            padding: 16px 20px;
            margin: 20px 0;
            border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
            font-style: italic;
            color: var(--color-primary);
            font-size: 1rem;
        }

        .article-body blockquote p {
            margin-bottom: 0;
        }

        .article-body code {
            background: #F1F5F9;
            padding: 2px 8px;
            border-radius: var(--radius-xs);
            font-size: 0.9em;
            color: #E04B4B;
            font-family: 'SF Mono', 'Consolas', 'Monaco', monospace;
        }

        .article-body pre {
            background: #1E293B;
            color: #E2E8F0;
            padding: 20px 24px;
            border-radius: var(--radius-md);
            overflow-x: auto;
            margin: 20px 0;
            font-size: 0.9rem;
            line-height: 1.6;
        }

        .article-body pre code {
            background: none;
            color: inherit;
            padding: 0;
            font-size: inherit;
        }

        .article-body a {
            color: var(--color-secondary);
            font-weight: 500;
            border-bottom: 1px solid transparent;
            transition: all var(--transition-fast);
        }

        .article-body a:hover {
            color: var(--color-primary);
            border-bottom-color: var(--color-primary);
        }

        .article-body strong {
            color: var(--color-text-strong);
            font-weight: 700;
        }

        .article-body hr {
            border: none;
            border-top: 1px solid var(--color-border);
            margin: 32px 0;
        }

        /* ========== ARTICLE FOOTER META ========== */
        .article-footer-meta {
            margin-top: 36px;
            padding-top: 24px;
            border-top: 1px solid var(--color-border-light);
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
        }

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

        .article-tags .tag-label {
            font-size: 0.82rem;
            color: var(--color-text-light);
            font-weight: 500;
        }

        .article-tags .tag {
            display: inline-block;
            background: var(--color-tag-bg);
            color: var(--color-tag-text);
            font-size: 0.8rem;
            padding: 5px 12px;
            border-radius: var(--radius-full);
            font-weight: 500;
            transition: all var(--transition-fast);
        }

        .article-tags .tag:hover {
            background: #DDE4F5;
        }

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

        .article-share .share-label {
            font-size: 0.82rem;
            color: var(--color-text-light);
            font-weight: 500;
        }

        .share-btn {
            width: 36px;
            height: 36px;
            border-radius: 50%;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            background: #F5F6FA;
            color: var(--color-text-light);
            font-size: 0.85rem;
            transition: all var(--transition-fast);
            border: 1px solid transparent;
        }

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

        /* ========== RELATED POSTS ========== */
        .related-section {
            padding: 48px 0 40px;
            background: var(--color-white);
            border-top: 1px solid var(--color-border-light);
            border-bottom: 1px solid var(--color-border-light);
        }

        .section-header {
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-bottom: 28px;
            flex-wrap: wrap;
            gap: 12px;
        }

        .section-header h2 {
            font-size: 1.4rem;
            font-weight: 700;
            color: var(--color-primary);
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .section-header h2::before {
            content: '';
            width: 4px;
            height: 22px;
            background: var(--color-accent);
            border-radius: 2px;
        }

        .section-header .view-all {
            font-size: 0.88rem;
            color: var(--color-secondary);
            font-weight: 500;
            display: inline-flex;
            align-items: center;
            gap: 4px;
            transition: color var(--transition-fast);
        }

        .section-header .view-all:hover {
            color: var(--color-primary);
        }

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

        .related-card {
            background: var(--color-bg);
            border-radius: var(--radius-md);
            overflow: hidden;
            border: 1px solid var(--color-border-light);
            transition: all var(--transition-base);
            cursor: pointer;
        }

        .related-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-3px);
            border-color: transparent;
        }

        .related-card-img {
            width: 100%;
            height: 180px;
            object-fit: cover;
            display: block;
        }

        .related-card-body {
            padding: 16px 18px 18px;
        }

        .related-card-body .card-category {
            font-size: 0.75rem;
            font-weight: 600;
            color: var(--color-accent);
            text-transform: uppercase;
            letter-spacing: 0.05em;
            margin-bottom: 8px;
        }

        .related-card-body h3 {
            font-size: 0.98rem;
            font-weight: 600;
            color: var(--color-text-strong);
            line-height: 1.45;
            margin-bottom: 8px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .related-card-body .card-meta {
            font-size: 0.78rem;
            color: var(--color-text-lighter);
            display: flex;
            align-items: center;
            gap: 6px;
        }

        .related-card-body a {
            display: block;
            color: inherit;
        }

        .related-card-body a:hover h3 {
            color: var(--color-secondary);
        }

        /* ========== CTA SECTION ========== */
        .cta-section {
            padding: 56px 0;
            background: var(--color-primary);
            color: #fff;
            text-align: center;
            position: relative;
            overflow: hidden;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            top: -60px;
            right: -80px;
            width: 280px;
            height: 280px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.03);
            pointer-events: none;
        }

        .cta-section::after {
            content: '';
            position: absolute;
            bottom: -40px;
            left: -60px;
            width: 200px;
            height: 200px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.025);
            pointer-events: none;
        }

        .cta-section .container {
            position: relative;
            z-index: 1;
        }

        .cta-section h2 {
            font-size: 1.75rem;
            font-weight: 700;
            margin-bottom: 12px;
            letter-spacing: -0.01em;
        }

        .cta-section p {
            font-size: 1rem;
            color: rgba(255, 255, 255, 0.75);
            margin-bottom: 28px;
            max-width: 500px;
            margin-left: auto;
            margin-right: auto;
            line-height: 1.7;
        }

        .btn-cta-lg {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 14px 32px;
            background: var(--color-accent);
            color: #fff;
            font-weight: 600;
            font-size: 1rem;
            border-radius: var(--radius-full);
            transition: all var(--transition-base);
        }

        .btn-cta-lg:hover {
            background: var(--color-accent-hover);
            box-shadow: var(--shadow-lg);
            transform: translateY(-2px);
        }

        .btn-outline-lg {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 13px 30px;
            background: transparent;
            color: #fff;
            font-weight: 600;
            font-size: 1rem;
            border-radius: var(--radius-full);
            border: 2px solid rgba(255, 255, 255, 0.35);
            transition: all var(--transition-base);
            margin-left: 12px;
        }

        .btn-outline-lg:hover {
            border-color: #fff;
            background: rgba(255, 255, 255, 0.08);
        }

        /* ========== NOT FOUND ========== */
        .not-found-section {
            padding: 80px 0 60px;
            text-align: center;
            background: var(--color-bg);
        }

        .not-found-icon {
            font-size: 5rem;
            color: var(--color-text-lighter);
            margin-bottom: 20px;
        }

        .not-found-section h2 {
            font-size: 1.6rem;
            color: var(--color-primary);
            margin-bottom: 10px;
        }

        .not-found-section p {
            color: var(--color-text-light);
            margin-bottom: 24px;
            font-size: 1rem;
        }

        .btn-back-home {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 24px;
            background: var(--color-primary);
            color: #fff;
            font-weight: 600;
            border-radius: var(--radius-full);
            transition: all var(--transition-base);
        }

        .btn-back-home:hover {
            background: var(--color-primary-light);
            box-shadow: var(--shadow-md);
        }

        /* ========== FOOTER ========== */
        .site-footer {
            background: #111827;
            color: #D1D5DB;
            padding: 50px 0 24px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 36px;
        }

        .footer-logo {
            font-size: 1.25rem;
            font-weight: 700;
            color: #fff;
            display: block;
            margin-bottom: 10px;
        }

        .footer-brand p {
            font-size: 0.88rem;
            line-height: 1.7;
            color: #9CA3AF;
            max-width: 360px;
        }

        .footer-col h4 {
            font-size: 0.9rem;
            font-weight: 600;
            color: #fff;
            margin-bottom: 14px;
            letter-spacing: 0.02em;
        }

        .footer-col a {
            display: block;
            font-size: 0.86rem;
            color: #9CA3AF;
            padding: 5px 0;
            transition: color var(--transition-fast);
        }

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

        .footer-bottom {
            border-top: 1px solid #1F2937;
            padding-top: 20px;
            text-align: center;
            font-size: 0.82rem;
            color: #6B7280;
        }

        /* ========== RESPONSIVE ========== */
        @media (max-width: 1024px) {
            .nav-search {
                min-width: 140px;
            }

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

            .article-card {
                padding: 32px 28px;
            }

            .article-banner h1 {
                font-size: 1.7rem;
            }
        }

        @media (max-width: 768px) {
            .nav-links {
                display: none;
            }

            .nav-search {
                display: none;
            }

            .btn-cta-nav {
                padding: 7px 14px;
                font-size: 0.8rem;
            }

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

            .article-banner {
                padding: 40px 0 32px;
            }

            .article-banner h1 {
                font-size: 1.4rem;
            }

            .article-card {
                padding: 24px 18px;
                border-radius: var(--radius-md);
            }

            .article-body {
                font-size: 0.98rem;
                line-height: 1.75;
            }

            .article-body h2 {
                font-size: 1.3rem;
            }

            .article-body h3 {
                font-size: 1.12rem;
            }

            .article-footer-meta {
                flex-direction: column;
                align-items: flex-start;
            }

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

            .related-card-img {
                height: 200px;
            }

            .cta-section h2 {
                font-size: 1.35rem;
            }

            .btn-outline-lg {
                margin-left: 0;
                margin-top: 10px;
            }

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

            .breadcrumb {
                font-size: 0.78rem;
            }

            .article-meta {
                gap: 12px;
                font-size: 0.82rem;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding: 0 14px;
            }

            .site-header .container {
                padding: 0 14px;
            }

            .nav-brand {
                font-size: 1.05rem;
            }

            .btn-cta-nav {
                padding: 6px 12px;
                font-size: 0.75rem;
            }

            .article-banner h1 {
                font-size: 1.2rem;
            }

            .article-card {
                padding: 18px 14px;
            }

            .article-body {
                font-size: 0.93rem;
            }

            .article-body h2 {
                font-size: 1.15rem;
            }

            .cta-section {
                padding: 40px 0;
            }

            .cta-section h2 {
                font-size: 1.2rem;
            }

            .btn-cta-lg,
            .btn-outline-lg {
                padding: 11px 22px;
                font-size: 0.9rem;
            }

            .section-header h2 {
                font-size: 1.15rem;
            }

            .related-card-body h3 {
                font-size: 0.9rem;
            }
        }

        /* Mobile nav drawer */
        .mobile-nav-drawer {
            display: none;
            position: fixed;
            top: var(--nav-height);
            left: 0;
            right: 0;
            bottom: 0;
            background: var(--color-white);
            z-index: 999;
            padding: 20px 24px;
            flex-direction: column;
            gap: 4px;
            overflow-y: auto;
        }

        .mobile-nav-drawer.open {
            display: flex;
        }

        .mobile-nav-drawer a {
            display: block;
            padding: 12px 16px;
            border-radius: var(--radius-sm);
            font-weight: 500;
            color: var(--color-text);
            transition: all var(--transition-fast);
            font-size: 1rem;
        }

        .mobile-nav-drawer a:hover,
        .mobile-nav-drawer a.active {
            background: #EEF2FB;
            color: var(--color-primary);
            font-weight: 600;
        }

/* roulang page: category1 */
/* ============================================================
           星空体育入口 - 完整设计系统
           ============================================================ */
        :root {
            /* 主色系 - 深邃蓝 */
            --color-primary: #1a365d;
            --color-primary-light: #234b7a;
            --color-primary-dark: #0f2240;
            /* 辅色系 - 活力橙红 */
            --color-accent: #f05454;
            --color-accent-light: #f77878;
            --color-accent-dark: #d43d3d;
            /* 强调色 - 金色 */
            --color-highlight: #f0a500;
            --color-highlight-light: #fcc440;
            /* 背景与表面 */
            --color-bg: #f4f6f9;
            --color-bg-alt: #eef1f6;
            --color-surface: #ffffff;
            --color-surface-hover: #fafbfc;
            /* 文字 */
            --color-text: #1a1a2e;
            --color-text-secondary: #4a5568;
            --color-text-muted: #8895a7;
            --color-text-inverse: #ffffff;
            /* 边框 */
            --color-border: #e2e8f0;
            --color-border-light: #edf2f7;
            --color-border-focus: #1a365d;
            /* 圆角 */
            --radius-sm: 6px;
            --radius-md: 10px;
            --radius-lg: 16px;
            --radius-xl: 20px;
            --radius-full: 50px;
            /* 阴影 */
            --shadow-xs: 0 1px 2px rgba(0,0,0,0.04);
            --shadow-sm: 0 2px 8px rgba(0,0,0,0.06);
            --shadow-md: 0 4px 16px rgba(0,0,0,0.08);
            --shadow-lg: 0 8px 32px rgba(0,0,0,0.10);
            --shadow-xl: 0 12px 48px rgba(0,0,0,0.12);
            --shadow-card-hover: 0 6px 24px rgba(26,54,93,0.14);
            /* 间距 */
            --space-xs: 4px;
            --space-sm: 8px;
            --space-md: 16px;
            --space-lg: 24px;
            --space-xl: 32px;
            --space-2xl: 48px;
            --space-3xl: 64px;
            --space-4xl: 80px;
            /* 字体 */
            --font-sans: 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', system-ui, -apple-system, sans-serif;
            --font-mono: 'SF Mono', 'Fira Code', 'Consolas', monospace;
            /* 过渡 */
            --transition-fast: 0.15s ease;
            --transition-base: 0.25s ease;
            --transition-slow: 0.35s cubic-bezier(0.4, 0, 0.2, 1);
            /* 导航高度 */
            --nav-height: 68px;
        }

        /* --- Reset & Base --- */
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }

        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        body {
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.7;
            color: var(--color-text);
            background-color: var(--color-bg);
            min-height: 100vh;
            display: flex;
            flex-direction: column;
        }

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

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

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

        button {
            cursor: pointer;
        }

        ul,
        ol {
            list-style: none;
        }

        /* --- Container --- */
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 var(--space-lg);
        }

        @media (max-width: 768px) {
            .container {
                padding: 0 var(--space-md);
            }
        }

        /* ============================================================
           HEADER & NAVIGATION
           ============================================================ */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: var(--color-surface);
            border-bottom: 1px solid var(--color-border-light);
            box-shadow: var(--shadow-xs);
            height: var(--nav-height);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: var(--nav-height);
            gap: var(--space-lg);
        }

        /* Logo */
        .header-logo {
            display: flex;
            align-items: center;
            gap: var(--space-sm);
            font-weight: 700;
            font-size: 1.25rem;
            color: var(--color-primary);
            white-space: nowrap;
            flex-shrink: 0;
            letter-spacing: -0.01em;
        }

        .header-logo i {
            color: var(--color-accent);
            font-size: 1.35rem;
        }

        /* Nav Links */
        .nav-links {
            display: flex;
            align-items: center;
            gap: var(--space-xs);
        }

        .nav-links a {
            display: inline-flex;
            align-items: center;
            padding: 8px 18px;
            border-radius: var(--radius-full);
            font-weight: 500;
            font-size: 0.95rem;
            color: var(--color-text-secondary);
            transition: all var(--transition-base);
            white-space: nowrap;
            position: relative;
        }

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

        .nav-links a.active {
            color: var(--color-surface);
            background: var(--color-primary);
            font-weight: 600;
            box-shadow: var(--shadow-sm);
        }

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

        /* Search Box */
        .header-search {
            display: flex;
            align-items: center;
            background: var(--color-bg);
            border: 2px solid transparent;
            border-radius: var(--radius-full);
            padding: 6px 16px;
            gap: var(--space-sm);
            transition: all var(--transition-base);
            flex: 1;
            max-width: 240px;
        }

        .header-search:focus-within {
            border-color: var(--color-primary);
            background: var(--color-surface);
            box-shadow: 0 0 0 4px rgba(26,54,93,0.06);
            max-width: 280px;
        }

        .header-search i {
            color: var(--color-text-muted);
            font-size: 0.9rem;
            flex-shrink: 0;
        }

        .header-search input {
            background: transparent;
            width: 100%;
            color: var(--color-text);
            font-size: 0.9rem;
            padding: 4px 0;
        }

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

        /* Header CTA */
        .header-cta {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: var(--color-accent);
            color: #fff;
            padding: 10px 22px;
            border-radius: var(--radius-full);
            font-weight: 600;
            font-size: 0.9rem;
            white-space: nowrap;
            transition: all var(--transition-base);
            flex-shrink: 0;
            box-shadow: 0 2px 8px rgba(240,84,84,0.25);
        }

        .header-cta:hover {
            background: var(--color-accent-dark);
            box-shadow: 0 4px 16px rgba(240,84,84,0.35);
            transform: translateY(-1px);
            color: #fff;
        }

        /* Mobile Menu Toggle */
        .menu-toggle {
            display: none;
            background: none;
            font-size: 1.5rem;
            color: var(--color-text);
            padding: 6px;
            border-radius: var(--radius-sm);
            transition: background var(--transition-fast);
            flex-shrink: 0;
        }

        .menu-toggle:hover {
            background: var(--color-bg-alt);
        }

        /* ============================================================
           CATEGORY BANNER
           ============================================================ */
        .category-banner {
            position: relative;
            background: linear-gradient(135deg, var(--color-primary-dark) 0%, var(--color-primary) 40%, var(--color-primary-light) 100%);
            background-image: url('/assets/images/backpic/back-1.png');
            background-size: cover;
            background-position: center;
            background-blend-mode: overlay;
            padding: var(--space-3xl) 0;
            color: var(--color-text-inverse);
            overflow: hidden;
        }

        .category-banner::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(15,34,64,0.82) 0%, rgba(26,54,93,0.88) 100%);
            z-index: 1;
        }

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

        .breadcrumb {
            display: flex;
            align-items: center;
            gap: var(--space-sm);
            font-size: 0.88rem;
            color: rgba(255,255,255,0.75);
            margin-bottom: var(--space-lg);
            flex-wrap: wrap;
        }

        .breadcrumb a {
            color: rgba(255,255,255,0.85);
            transition: color var(--transition-fast);
        }

        .breadcrumb a:hover {
            color: #fff;
            text-decoration: underline;
        }

        .breadcrumb .sep {
            font-size: 0.7rem;
            opacity: 0.6;
        }

        .breadcrumb .current {
            color: #fff;
            font-weight: 500;
        }

        .category-banner h1 {
            font-size: 2.6rem;
            font-weight: 800;
            letter-spacing: -0.02em;
            margin-bottom: var(--space-md);
            line-height: 1.2;
        }

        .category-banner .banner-desc {
            font-size: 1.1rem;
            color: rgba(255,255,255,0.85);
            max-width: 600px;
            line-height: 1.6;
        }

        .banner-stats {
            display: flex;
            gap: var(--space-xl);
            margin-top: var(--space-lg);
            flex-wrap: wrap;
        }

        .banner-stat {
            display: flex;
            align-items: center;
            gap: var(--space-sm);
        }

        .banner-stat .stat-num {
            font-size: 1.6rem;
            font-weight: 700;
            color: var(--color-highlight);
        }

        .banner-stat .stat-label {
            font-size: 0.9rem;
            color: rgba(255,255,255,0.7);
        }

        /* ============================================================
           FILTER TABS
           ============================================================ */
        .filter-section {
            background: var(--color-surface);
            border-bottom: 1px solid var(--color-border-light);
            padding: var(--space-md) 0;
            position: sticky;
            top: var(--nav-height);
            z-index: 50;
        }

        .filter-tabs {
            display: flex;
            gap: var(--space-xs);
            flex-wrap: wrap;
            align-items: center;
        }

        .filter-tab {
            display: inline-flex;
            align-items: center;
            gap: 5px;
            padding: 8px 18px;
            border-radius: var(--radius-full);
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--color-text-secondary);
            background: var(--color-bg);
            border: 1.5px solid transparent;
            cursor: pointer;
            transition: all var(--transition-base);
            white-space: nowrap;
            user-select: none;
        }

        .filter-tab:hover {
            color: var(--color-primary);
            background: var(--color-bg-alt);
            border-color: var(--color-border);
        }

        .filter-tab.active {
            color: var(--color-surface);
            background: var(--color-primary);
            border-color: var(--color-primary);
            font-weight: 600;
            box-shadow: var(--shadow-sm);
        }

        .filter-tab .tab-count {
            font-size: 0.75rem;
            background: rgba(255,255,255,0.2);
            padding: 2px 8px;
            border-radius: var(--radius-full);
            font-weight: 500;
        }

        .filter-tab.active .tab-count {
            background: rgba(255,255,255,0.25);
        }

        /* ============================================================
           MAIN CONTENT LAYOUT
           ============================================================ */
        .main-content {
            padding: var(--space-2xl) 0 var(--space-3xl);
            flex: 1;
        }

        .content-layout {
            display: grid;
            grid-template-columns: 1fr 340px;
            gap: var(--space-xl);
            align-items: start;
        }

        @media (max-width: 1024px) {
            .content-layout {
                grid-template-columns: 1fr;
            }
        }

        /* ============================================================
           ARTICLE CARDS
           ============================================================ */
        .articles-grid {
            display: flex;
            flex-direction: column;
            gap: var(--space-lg);
        }

        .article-card {
            display: grid;
            grid-template-columns: 280px 1fr;
            background: var(--color-surface);
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--color-border-light);
            transition: all var(--transition-slow);
            position: relative;
        }

        .article-card:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-2px);
            border-color: var(--color-border);
        }

        .article-card.pinned {
            border-left: 4px solid var(--color-accent);
        }

        .article-card .card-image {
            position: relative;
            overflow: hidden;
            min-height: 200px;
            background: var(--color-bg-alt);
        }

        .article-card .card-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform var(--transition-slow);
        }

        .article-card:hover .card-image img {
            transform: scale(1.06);
        }

        .article-card .pinned-badge {
            position: absolute;
            top: 12px;
            left: 12px;
            background: var(--color-accent);
            color: #fff;
            font-size: 0.75rem;
            font-weight: 600;
            padding: 4px 12px;
            border-radius: var(--radius-full);
            z-index: 3;
            box-shadow: var(--shadow-sm);
            display: flex;
            align-items: center;
            gap: 4px;
        }

        .article-card .card-tag {
            position: absolute;
            top: 12px;
            right: 12px;
            background: rgba(0,0,0,0.7);
            color: #fff;
            font-size: 0.75rem;
            font-weight: 500;
            padding: 4px 10px;
            border-radius: var(--radius-full);
            z-index: 3;
            backdrop-filter: blur(4px);
        }

        .article-card .card-body {
            padding: var(--space-lg);
            display: flex;
            flex-direction: column;
            justify-content: center;
            gap: var(--space-sm);
        }

        .article-card .card-body h3 {
            font-size: 1.2rem;
            font-weight: 700;
            line-height: 1.4;
            color: var(--color-text);
            transition: color var(--transition-fast);
        }

        .article-card:hover .card-body h3 {
            color: var(--color-primary);
        }

        .article-card .card-body .card-excerpt {
            font-size: 0.92rem;
            color: var(--color-text-secondary);
            line-height: 1.6;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .article-card .card-meta {
            display: flex;
            align-items: center;
            gap: var(--space-md);
            font-size: 0.82rem;
            color: var(--color-text-muted);
            flex-wrap: wrap;
            margin-top: var(--space-xs);
        }

        .article-card .card-meta span {
            display: inline-flex;
            align-items: center;
            gap: 4px;
        }

        .article-card .card-meta i {
            font-size: 0.8rem;
        }

        /* --- Pagination --- */
        .pagination {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: var(--space-sm);
            margin-top: var(--space-xl);
            flex-wrap: wrap;
        }

        .pagination a,
        .pagination span {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            min-width: 40px;
            height: 40px;
            padding: 0 12px;
            border-radius: var(--radius-md);
            font-weight: 500;
            font-size: 0.9rem;
            transition: all var(--transition-base);
            border: 1.5px solid transparent;
        }

        .pagination a {
            color: var(--color-text-secondary);
            background: var(--color-surface);
            border-color: var(--color-border-light);
        }

        .pagination a:hover {
            color: var(--color-primary);
            border-color: var(--color-primary);
            background: var(--color-surface-hover);
        }

        .pagination .current {
            color: #fff;
            background: var(--color-primary);
            border-color: var(--color-primary);
            font-weight: 600;
            box-shadow: var(--shadow-sm);
        }

        .pagination .disabled {
            color: var(--color-text-muted);
            pointer-events: none;
            opacity: 0.5;
        }

        /* ============================================================
           SIDEBAR
           ============================================================ */
        .sidebar {
            display: flex;
            flex-direction: column;
            gap: var(--space-lg);
        }

        .sidebar-card {
            background: var(--color-surface);
            border-radius: var(--radius-lg);
            padding: var(--space-lg);
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--color-border-light);
        }

        .sidebar-card h4 {
            font-size: 1.05rem;
            font-weight: 700;
            color: var(--color-text);
            margin-bottom: var(--space-md);
            padding-bottom: var(--space-sm);
            border-bottom: 2px solid var(--color-accent);
            display: inline-block;
        }

        /* Hot List */
        .hot-list {
            display: flex;
            flex-direction: column;
            gap: var(--space-sm);
        }

        .hot-item {
            display: flex;
            gap: var(--space-md);
            padding: var(--space-sm) 0;
            border-bottom: 1px solid var(--color-border-light);
            transition: all var(--transition-fast);
            border-radius: var(--radius-sm);
            padding: var(--space-sm);
            margin: 0 calc(-1 * var(--space-sm));
        }

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

        .hot-item:hover {
            background: var(--color-surface-hover);
        }

        .hot-item .hot-rank {
            font-size: 1.4rem;
            font-weight: 800;
            color: var(--color-text-muted);
            min-width: 32px;
            text-align: center;
            flex-shrink: 0;
            line-height: 1;
        }

        .hot-item:nth-child(1) .hot-rank,
        .hot-item:nth-child(2) .hot-rank,
        .hot-item:nth-child(3) .hot-rank {
            color: var(--color-accent);
        }

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

        .hot-item .hot-title {
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--color-text);
            line-height: 1.4;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            transition: color var(--transition-fast);
        }

        .hot-item:hover .hot-title {
            color: var(--color-primary);
        }

        .hot-item .hot-views {
            font-size: 0.75rem;
            color: var(--color-text-muted);
            margin-top: 2px;
        }

        /* Tag Cloud */
        .tag-cloud {
            display: flex;
            flex-wrap: wrap;
            gap: var(--space-xs);
        }

        .tag-cloud a {
            display: inline-block;
            padding: 6px 14px;
            font-size: 0.82rem;
            font-weight: 500;
            border-radius: var(--radius-full);
            background: var(--color-bg);
            color: var(--color-text-secondary);
            transition: all var(--transition-base);
            border: 1px solid transparent;
        }

        .tag-cloud a:hover {
            color: var(--color-primary);
            background: var(--color-bg-alt);
            border-color: var(--color-primary);
        }

        /* ============================================================
           CTA SECTION
           ============================================================ */
        .cta-section {
            background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
            padding: var(--space-3xl) 0;
            color: #fff;
            text-align: center;
            position: relative;
            overflow: hidden;
        }

        .cta-section::after {
            content: '';
            position: absolute;
            top: -60px;
            right: -80px;
            width: 260px;
            height: 260px;
            border-radius: 50%;
            background: rgba(255,255,255,0.03);
            pointer-events: none;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            bottom: -40px;
            left: -60px;
            width: 200px;
            height: 200px;
            border-radius: 50%;
            background: rgba(255,255,255,0.03);
            pointer-events: none;
        }

        .cta-section .container {
            position: relative;
            z-index: 2;
        }

        .cta-section h2 {
            font-size: 2rem;
            font-weight: 800;
            margin-bottom: var(--space-md);
            letter-spacing: -0.01em;
        }

        .cta-section p {
            font-size: 1.05rem;
            color: rgba(255,255,255,0.8);
            max-width: 550px;
            margin: 0 auto var(--space-xl);
            line-height: 1.6;
        }

        .cta-section .cta-btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: var(--color-highlight);
            color: var(--color-primary-dark);
            padding: 14px 32px;
            border-radius: var(--radius-full);
            font-weight: 700;
            font-size: 1rem;
            transition: all var(--transition-base);
            box-shadow: 0 4px 20px rgba(240,165,0,0.35);
        }

        .cta-section .cta-btn:hover {
            background: var(--color-highlight-light);
            transform: translateY(-2px);
            box-shadow: 0 8px 28px rgba(240,165,0,0.45);
            color: var(--color-primary-dark);
        }

        /* ============================================================
           FOOTER
           ============================================================ */
        .site-footer {
            background: var(--color-primary-dark);
            color: rgba(255,255,255,0.8);
            padding: var(--space-3xl) 0 var(--space-lg);
            margin-top: auto;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr;
            gap: var(--space-xl);
            margin-bottom: var(--space-xl);
        }

        .footer-brand .footer-logo {
            font-size: 1.3rem;
            font-weight: 700;
            color: #fff;
            display: block;
            margin-bottom: var(--space-sm);
        }

        .footer-brand p {
            font-size: 0.9rem;
            color: rgba(255,255,255,0.6);
            line-height: 1.6;
        }

        .footer-col h4 {
            font-size: 0.95rem;
            font-weight: 600;
            color: #fff;
            margin-bottom: var(--space-md);
            letter-spacing: 0.02em;
        }

        .footer-col a {
            display: block;
            font-size: 0.88rem;
            color: rgba(255,255,255,0.6);
            padding: 4px 0;
            transition: color var(--transition-fast);
        }

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

        .footer-bottom {
            border-top: 1px solid rgba(255,255,255,0.12);
            padding-top: var(--space-lg);
            text-align: center;
            font-size: 0.82rem;
            color: rgba(255,255,255,0.45);
        }

        /* ============================================================
           RESPONSIVE - TABLET (768px - 1024px)
           ============================================================ */
        @media (max-width: 1024px) {
            .header-search {
                max-width: 180px;
            }

            .header-search:focus-within {
                max-width: 200px;
            }

            .article-card {
                grid-template-columns: 220px 1fr;
            }

            .category-banner h1 {
                font-size: 2rem;
            }

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

        /* ============================================================
           RESPONSIVE - MOBILE (max-width: 768px)
           ============================================================ */
        @media (max-width: 768px) {
            :root {
                --nav-height: 60px;
            }

            .header-inner {
                gap: var(--space-sm);
                flex-wrap: wrap;
                height: auto;
                padding: var(--space-sm) 0;
            }

            .header-logo {
                font-size: 1.1rem;
            }

            .menu-toggle {
                display: flex;
                order: 3;
            }

            .nav-links {
                display: none;
                position: absolute;
                top: 100%;
                left: 0;
                right: 0;
                flex-direction: column;
                background: var(--color-surface);
                border-bottom: 2px solid var(--color-border);
                box-shadow: var(--shadow-lg);
                padding: var(--space-md);
                gap: var(--space-xs);
                z-index: 999;
            }

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

            .nav-links a {
                width: 100%;
                justify-content: center;
                padding: 12px 18px;
                border-radius: var(--radius-md);
            }

            .header-search {
                order: 2;
                max-width: 140px;
                flex: 0 1 auto;
            }

            .header-search:focus-within {
                max-width: 160px;
            }

            .header-cta {
                display: none;
            }

            .header-cta-mobile {
                display: inline-flex;
                order: 3;
                margin-left: auto;
            }

            .category-banner {
                padding: var(--space-xl) 0;
            }

            .category-banner h1 {
                font-size: 1.6rem;
            }

            .category-banner .banner-desc {
                font-size: 0.95rem;
            }

            .banner-stats {
                gap: var(--space-md);
            }

            .banner-stat .stat-num {
                font-size: 1.3rem;
            }

            .filter-tabs {
                gap: 6px;
            }

            .filter-tab {
                padding: 6px 14px;
                font-size: 0.82rem;
            }

            .content-layout {
                grid-template-columns: 1fr;
                gap: var(--space-lg);
            }

            .article-card {
                grid-template-columns: 1fr;
            }

            .article-card .card-image {
                min-height: 180px;
                max-height: 220px;
            }

            .article-card .card-body {
                padding: var(--space-md);
                gap: var(--space-xs);
            }

            .article-card .card-body h3 {
                font-size: 1.05rem;
            }

            .cta-section h2 {
                font-size: 1.5rem;
            }

            .cta-section p {
                font-size: 0.95rem;
            }

            .footer-grid {
                grid-template-columns: 1fr;
                gap: var(--space-lg);
            }

            .sidebar {
                gap: var(--space-md);
            }

            .pagination a,
            .pagination span {
                min-width: 36px;
                height: 36px;
                font-size: 0.82rem;
            }
        }

        /* ============================================================
           RESPONSIVE - SMALL MOBILE (max-width: 520px)
           ============================================================ */
        @media (max-width: 520px) {
            .header-search {
                max-width: 110px;
                padding: 5px 10px;
            }

            .header-search:focus-within {
                max-width: 130px;
            }

            .header-logo {
                font-size: 1rem;
                gap: 4px;
            }

            .header-logo i {
                font-size: 1.1rem;
            }

            .category-banner h1 {
                font-size: 1.35rem;
            }

            .banner-stats {
                flex-direction: column;
                gap: var(--space-sm);
            }

            .filter-section {
                overflow-x: auto;
                -webkit-overflow-scrolling: touch;
            }

            .filter-tabs {
                flex-wrap: nowrap;
            }

            .article-card .card-image {
                min-height: 160px;
                max-height: 180px;
            }

            .article-card .card-body h3 {
                font-size: 0.98rem;
            }

            .article-card .card-body .card-excerpt {
                font-size: 0.85rem;
                -webkit-line-clamp: 2;
            }

            .article-card .card-meta {
                font-size: 0.76rem;
                gap: var(--space-sm);
            }

            .cta-section {
                padding: var(--space-xl) 0;
            }

            .cta-section h2 {
                font-size: 1.3rem;
            }

            .cta-btn {
                padding: 12px 24px;
                font-size: 0.9rem;
            }
        }

        /* ============================================================
           ANIMATIONS & UTILITIES
           ============================================================ */
        @keyframes fadeInUp {
            from {
                opacity: 0;
                transform: translateY(20px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }

        .article-card {
            animation: fadeInUp 0.5s ease forwards;
        }

        .article-card:nth-child(1) { animation-delay: 0.05s; }
        .article-card:nth-child(2) { animation-delay: 0.12s; }
        .article-card:nth-child(3) { animation-delay: 0.19s; }
        .article-card:nth-child(4) { animation-delay: 0.26s; }

        .sr-only {
            position: absolute;
            width: 1px;
            height: 1px;
            padding: 0;
            margin: -1px;
            overflow: hidden;
            clip: rect(0,0,0,0);
            white-space: nowrap;
            border: 0;
        }

        /* Focus visible for accessibility */
        a:focus-visible,
        button:focus-visible,
        input:focus-visible {
            outline: 3px solid var(--color-primary-light);
            outline-offset: 2px;
            border-radius: 3px;
        }