/* roulang page: index */
:root {
            --primary: #0E9F6E;
            --primary-dark: #0B8A5F;
            --primary-light: rgba(14,159,110,0.1);
            --primary-lighter: rgba(14,159,110,0.05);
            --accent: #FF7A00;
            --accent-dark: #EA580C;
            --accent-light: rgba(255,122,0,0.1);
            --bg: #F7F9FA;
            --bg-card: #FFFFFF;
            --bg-dark: #1F2937;
            --text-primary: #1F2937;
            --text-secondary: #6B7280;
            --text-light: #F9FAFB;
            --border: #E5E7EB;
            --border-light: #F3F4F6;
            --success: #16A34A;
            --danger: #EF4444;
            --radius-sm: 6px;
            --radius-md: 8px;
            --radius-lg: 10px;
            --radius-xl: 16px;
            --shadow-sm: 0 2px 8px rgba(31,41,55,0.06);
            --shadow-md: 0 4px 16px rgba(31,41,55,0.1);
            --shadow-lg: 0 8px 24px rgba(31,41,55,0.12);
            --shadow-hover: 0 8px 24px rgba(31,41,55,0.12);
            --font-cn: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
            --font-en: "Inter", "PingFang SC", "Microsoft YaHei", sans-serif;
            --container-max: 1200px;
            --container-pad: 24px;
            --section-gap: 80px;
            --section-gap-mobile: 40px;
            --nav-height: 64px;
            --transition-fast: 0.2s ease;
            --transition-base: 0.3s ease;
            --transition-slow: 0.5s ease;
            --focus-ring: 3px solid rgba(14,159,110,0.3);
            --focus-ring-accent: 3px solid rgba(255,122,0,0.3);
        }

        *, *::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-cn);
            font-size: 16px;
            line-height: 1.7;
            color: var(--text-primary);
            background-color: var(--bg);
            padding-top: var(--nav-height);
            overflow-x: hidden;
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
            border: 0;
        }

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

        a:hover {
            color: var(--primary-dark);
            text-decoration: underline;
        }

        a:focus-visible,
        button:focus-visible,
        input:focus-visible {
            outline: var(--focus-ring);
            outline-offset: 2px;
        }

        ul, ol {
            list-style: none;
        }

        button {
            font-family: var(--font-cn);
            cursor: pointer;
            border: none;
            background: none;
            font-size: inherit;
            line-height: inherit;
        }

        input {
            font-family: var(--font-cn);
            font-size: inherit;
        }

        .container {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 var(--container-pad);
            width: 100%;
        }

        /* ===== 导航 ===== */
        .navbar {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            width: 100%;
            height: var(--nav-height);
            z-index: 1000;
            background: var(--bg-card);
            border-bottom: 1px solid var(--border);
            display: flex;
            align-items: center;
            transition: box-shadow var(--transition-base);
        }

        .navbar.scrolled {
            box-shadow: var(--shadow-sm);
        }

        .navbar .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            height: 100%;
        }

        .navbar .logo {
            display: flex;
            align-items: center;
            gap: 8px;
            flex-shrink: 0;
            font-size: 18px;
            font-weight: 700;
            color: var(--primary);
            text-decoration: none;
            letter-spacing: -0.3px;
            white-space: nowrap;
        }

        .navbar .logo:hover {
            color: var(--primary-dark);
            text-decoration: none;
        }

        .logo-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 32px;
            height: 32px;
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            border-radius: var(--radius-sm);
            color: #fff;
            font-size: 16px;
            flex-shrink: 0;
        }

        .nav-menu {
            display: flex;
            align-items: center;
            gap: 4px;
            flex: 1;
            justify-content: center;
        }

        .nav-menu a {
            display: inline-block;
            padding: 8px 14px;
            font-size: 14px;
            font-weight: 500;
            color: var(--text-primary);
            text-decoration: none;
            border-radius: var(--radius-md);
            position: relative;
            transition: color var(--transition-fast), background-color var(--transition-fast);
            white-space: nowrap;
        }

        .nav-menu a::after {
            content: '';
            position: absolute;
            left: 14px;
            right: 14px;
            bottom: 4px;
            height: 2px;
            background: var(--primary);
            border-radius: 1px;
            transform: scaleX(0);
            transform-origin: left center;
            transition: transform var(--transition-fast);
        }

        .nav-menu a:hover {
            color: var(--primary);
            text-decoration: none;
            background: var(--primary-lighter);
        }

        .nav-menu a:hover::after,
        .nav-menu a.active::after {
            transform: scaleX(1);
        }

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

        .nav-actions {
            display: flex;
            align-items: center;
            gap: 12px;
            flex-shrink: 0;
        }

        .nav-search {
            display: flex;
            align-items: center;
            gap: 8px;
            background: var(--bg);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            padding: 6px 12px;
            transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
        }

        .nav-search:focus-within {
            border-color: var(--primary);
            box-shadow: var(--focus-ring);
        }

        .nav-search input {
            border: none;
            background: transparent;
            font-size: 13px;
            color: var(--text-primary);
            width: 120px;
            outline: none;
        }

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

        .nav-search .search-icon {
            color: var(--text-secondary);
            font-size: 14px;
            flex-shrink: 0;
        }

        .btn-small {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 8px 16px;
            background: var(--accent);
            color: #fff;
            font-size: 13px;
            font-weight: 600;
            border-radius: var(--radius-md);
            text-decoration: none;
            transition: background-color var(--transition-fast), box-shadow var(--transition-fast);
            white-space: nowrap;
            border: none;
            cursor: pointer;
        }

        .btn-small:hover {
            background: var(--accent-dark);
            color: #fff;
            text-decoration: none;
            box-shadow: 0 2px 8px rgba(255,122,0,0.3);
        }

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

        .nav-toggle {
            display: none;
            flex-direction: column;
            justify-content: center;
            gap: 5px;
            width: 40px;
            height: 40px;
            padding: 8px;
            background: transparent;
            border: none;
            cursor: pointer;
            border-radius: var(--radius-sm);
            transition: background-color var(--transition-fast);
        }

        .nav-toggle:hover {
            background: var(--primary-lighter);
        }

        .nav-toggle span {
            display: block;
            width: 100%;
            height: 2px;
            background: var(--text-primary);
            border-radius: 1px;
            transition: transform var(--transition-fast), opacity var(--transition-fast);
        }

        .nav-toggle.active span:nth-child(1) {
            transform: translateY(7px) rotate(45deg);
        }

        .nav-toggle.active span:nth-child(2) {
            opacity: 0;
        }

        .nav-toggle.active span:nth-child(3) {
            transform: translateY(-7px) rotate(-45deg);
        }

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

        .section-alt {
            background: var(--bg-card);
            border-top: 1px solid var(--border);
            border-bottom: 1px solid var(--border);
        }

        .section-accent {
            background: linear-gradient(135deg, var(--primary-lighter) 0%, rgba(14,159,110,0.08) 50%, rgba(14,159,110,0.03) 100%);
        }

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

        .section-header {
            text-align: center;
            margin-bottom: 40px;
        }

        .section-header.section-header-left {
            text-align: left;
            margin-bottom: 28px;
        }

        .section-title {
            font-size: 28px;
            font-weight: 700;
            line-height: 1.3;
            color: var(--text-primary);
            margin-bottom: 12px;
            letter-spacing: -0.5px;
        }

        .section-dark .section-title {
            color: var(--text-light);
        }

        .section-subtitle {
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.6;
            max-width: 600px;
            margin: 0 auto;
        }

        .section-header-left .section-subtitle {
            margin: 0;
        }

        .section-dark .section-subtitle {
            color: #9CA3AF;
        }

        /* ===== 按钮 ===== */
        .btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 24px;
            font-size: 15px;
            font-weight: 600;
            border-radius: var(--radius-md);
            text-decoration: none;
            transition: all var(--transition-fast);
            cursor: pointer;
            border: none;
            line-height: 1.4;
            white-space: nowrap;
        }

        .btn:hover {
            text-decoration: none;
        }

        .btn-primary {
            background: var(--accent);
            color: #fff;
            box-shadow: 0 2px 12px rgba(255,122,0,0.25);
        }

        .btn-primary:hover {
            background: var(--accent-dark);
            color: #fff;
            box-shadow: 0 4px 16px rgba(255,122,0,0.35);
            transform: translateY(-1px);
        }

        .btn-primary:active {
            transform: translateY(0);
            box-shadow: 0 2px 8px rgba(255,122,0,0.2);
        }

        .btn-secondary {
            background: transparent;
            color: var(--primary);
            border: 1px solid var(--primary);
        }

        .btn-secondary:hover {
            background: var(--primary-light);
            color: var(--primary-dark);
            border-color: var(--primary-dark);
            transform: translateY(-1px);
        }

        .btn-secondary:active {
            transform: translateY(0);
        }

        .btn-download {
            background: var(--accent);
            color: #fff;
            padding: 8px 18px;
            font-size: 13px;
            border-radius: var(--radius-sm);
        }

        .btn-download:hover {
            background: var(--accent-dark);
            color: #fff;
            transform: translateY(-1px);
            box-shadow: 0 2px 8px rgba(255,122,0,0.3);
        }

        .btn-download:active {
            transform: translateY(0);
        }

        .btn-light {
            background: #fff;
            color: var(--primary);
            border: 1px solid rgba(14,159,110,0.3);
        }

        .btn-light:hover {
            background: var(--primary-lighter);
            color: var(--primary-dark);
            border-color: var(--primary);
            transform: translateY(-1px);
        }

        .btn-outline-light {
            background: transparent;
            color: var(--text-light);
            border: 1px solid rgba(249,250,251,0.4);
        }

        .btn-outline-light:hover {
            background: rgba(249,250,251,0.1);
            color: #fff;
            border-color: rgba(249,250,251,0.7);
            transform: translateY(-1px);
        }

        /* ===== 徽章和标签 ===== */
        .badge {
            display: inline-flex;
            align-items: center;
            padding: 4px 12px;
            font-size: 12px;
            font-weight: 600;
            border-radius: 999px;
            line-height: 1.4;
            white-space: nowrap;
        }

        .badge-primary {
            background: var(--primary-light);
            color: var(--primary);
        }

        .badge-accent {
            background: var(--accent-light);
            color: var(--accent-dark);
        }

        .badge-success {
            background: rgba(22,163,74,0.1);
            color: var(--success);
        }

        .badge-gray {
            background: #F3F4F6;
            color: var(--text-secondary);
        }

        .tag {
            display: inline-flex;
            align-items: center;
            padding: 6px 14px;
            font-size: 13px;
            font-weight: 500;
            border-radius: 999px;
            background: var(--bg-card);
            border: 1px solid var(--border);
            color: var(--text-secondary);
            text-decoration: none;
            transition: all var(--transition-fast);
            cursor: pointer;
            white-space: nowrap;
        }

        .tag:hover {
            background: var(--primary-light);
            border-color: var(--primary);
            color: var(--primary);
            text-decoration: none;
        }

        /* ===== 卡片 ===== */
        .card {
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-sm);
            overflow: hidden;
            transition: box-shadow var(--transition-base), transform var(--transition-base);
        }

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

        /* ===== Hero ===== */
        .hero {
            position: relative;
            padding: 80px 0 100px;
            overflow: hidden;
            background: linear-gradient(180deg, rgba(14,159,110,0.13) 0%, rgba(14,159,110,0.04) 40%, var(--bg) 100%);
        }

        .hero .container {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
            align-items: center;
        }

        .hero-content {
            display: flex;
            flex-direction: column;
            gap: 20px;
        }

        .hero-badge-row {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
        }

        .hero-title {
            font-size: 40px;
            font-weight: 700;
            line-height: 1.2;
            letter-spacing: -1px;
            color: var(--text-primary);
        }

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

        .hero-title .highlight-accent {
            color: var(--accent);
        }

        .hero-subtitle {
            font-size: 17px;
            line-height: 1.7;
            color: var(--text-secondary);
            max-width: 520px;
        }

        .hero-cta-group {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            margin-top: 8px;
        }

        .hero-trust-row {
            display: flex;
            flex-wrap: wrap;
            gap: 20px;
            margin-top: 16px;
            padding-top: 20px;
            border-top: 1px solid var(--border);
        }

        .hero-trust-item {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            color: var(--text-secondary);
        }

        .hero-trust-item .trust-icon {
            font-size: 18px;
        }

        .hero-image {
            display: flex;
            align-items: center;
            justify-content: center;
        }

        .hero-image-inner {
            width: 100%;
            max-width: 500px;
            aspect-ratio: 5/4;
            border-radius: var(--radius-xl);
            overflow: hidden;
            background: #F3F4F6;
            position: relative;
            box-shadow: var(--shadow-lg);
        }

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

        .hero-image-overlay {
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            padding: 24px;
            background: linear-gradient(180deg, transparent 0%, rgba(31,41,55,0.75) 100%);
            color: #fff;
            display: flex;
            flex-direction: column;
            gap: 4px;
        }

        .hero-image-overlay .overlay-title {
            font-size: 16px;
            font-weight: 600;
        }

        .hero-image-overlay .overlay-sub {
            font-size: 13px;
            color: #D1D5DB;
        }

        /* ===== 快捷分类入口 ===== */
        .category-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 16px;
        }

        .category-card {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 16px 18px;
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            border: 1px solid var(--border);
            box-shadow: var(--shadow-sm);
            text-decoration: none;
            transition: all var(--transition-base);
            cursor: pointer;
        }

        .category-card:hover {
            border-color: var(--primary);
            box-shadow: var(--shadow-md);
            transform: translateY(-2px);
            text-decoration: none;
        }

        .category-icon {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 42px;
            height: 42px;
            border-radius: var(--radius-md);
            background: var(--primary-light);
            font-size: 20px;
            flex-shrink: 0;
        }

        .category-info {
            display: flex;
            flex-direction: column;
            min-width: 0;
        }

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

        .category-count {
            font-size: 12px;
            color: var(--text-secondary);
        }

        /* ===== 下载排行 ===== */
        .rank-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .rank-item {
            display: flex;
            align-items: center;
            gap: 16px;
            padding: 16px 20px;
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            border: 1px solid var(--border);
            box-shadow: var(--shadow-sm);
            transition: all var(--transition-base);
        }

        .rank-item:hover {
            border-color: rgba(14,159,110,0.3);
            box-shadow: var(--shadow-md);
            transform: translateY(-1px);
        }

        .rank-number {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 36px;
            height: 36px;
            background: var(--accent-light);
            color: var(--accent-dark);
            font-size: 16px;
            font-weight: 700;
            border-radius: 50%;
            flex-shrink: 0;
        }

        .rank-number.top1 {
            background: var(--accent);
            color: #fff;
        }

        .rank-number.top2 {
            background: rgba(255,122,0,0.6);
            color: #fff;
        }

        .rank-number.top3 {
            background: rgba(255,122,0,0.35);
            color: var(--accent-dark);
        }

        .rank-info {
            flex: 1;
            min-width: 0;
            display: flex;
            flex-direction: column;
            gap: 3px;
        }

        .rank-title {
            font-size: 15px;
            font-weight: 600;
            color: var(--text-primary);
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
        }

        .rank-meta {
            font-size: 12px;
            color: var(--text-secondary);
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
        }

        /* ===== 最新上架网格 ===== */
        .grid-cards {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }

        .grid-card {
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: all var(--transition-base);
            display: flex;
            flex-direction: column;
        }

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

        .grid-card-img {
            aspect-ratio: 16/9;
            overflow: hidden;
            background: #F3F4F6;
        }

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

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

        .grid-card-body {
            padding: 16px 18px;
            display: flex;
            flex-direction: column;
            gap: 8px;
            flex: 1;
        }

        .grid-card-badges {
            display: flex;
            gap: 6px;
            flex-wrap: wrap;
        }

        .grid-card-title {
            font-size: 15px;
            font-weight: 600;
            color: var(--text-primary);
            line-height: 1.4;
        }

        .grid-card-desc {
            font-size: 13px;
            color: var(--text-secondary);
            line-height: 1.6;
        }

        .grid-card-meta {
            display: flex;
            justify-content: space-between;
            align-items: center;
            font-size: 12px;
            color: var(--text-secondary);
            margin-top: auto;
            padding-top: 8px;
            border-top: 1px solid var(--border-light);
        }

        /* ===== 编辑推荐横向卡片 ===== */
        .recommend-list {
            display: flex;
            flex-direction: column;
            gap: 16px;
        }

        .recommend-card {
            display: flex;
            gap: 20px;
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            border: 1px solid var(--border);
            box-shadow: var(--shadow-sm);
            overflow: hidden;
            transition: all var(--transition-base);
        }

        .recommend-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-2px);
            border-color: rgba(14,159,110,0.25);
        }

        .recommend-card-img {
            width: 220px;
            min-height: 160px;
            flex-shrink: 0;
            overflow: hidden;
            background: #F3F4F6;
        }

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

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

        .recommend-card-body {
            flex: 1;
            display: flex;
            flex-direction: column;
            justify-content: center;
            gap: 8px;
            padding: 16px 20px 16px 0;
        }

        .recommend-card-title {
            font-size: 17px;
            font-weight: 600;
            color: var(--text-primary);
        }

        .recommend-card-desc {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.6;
        }

        .recommend-card-action {
            display: flex;
            gap: 10px;
            align-items: center;
            margin-top: 4px;
        }

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

        .topic-card {
            position: relative;
            border-radius: var(--radius-lg);
            overflow: hidden;
            aspect-ratio: 4/3;
            display: flex;
            align-items: flex-end;
            cursor: pointer;
            transition: all var(--transition-base);
        }

        .topic-card img {
            position: absolute;
            inset: 0;
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform var(--transition-slow);
        }

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

        .topic-card-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(31,41,55,0.15) 0%, rgba(31,41,55,0.6) 60%, rgba(31,41,55,0.85) 100%);
        }

        .topic-card-content {
            position: relative;
            z-index: 1;
            padding: 24px;
            color: #fff;
            display: flex;
            flex-direction: column;
            gap: 6px;
        }

        .topic-card-title {
            font-size: 18px;
            font-weight: 700;
            color: #fff;
        }

        .topic-card-desc {
            font-size: 13px;
            color: #D1D5DB;
            line-height: 1.5;
        }

        .topic-card-count {
            font-size: 12px;
            color: #9CA3AF;
        }

        /* ===== 安全下载保障 ===== */
        .safety-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }

        .safety-item {
            display: flex;
            gap: 14px;
            align-items: flex-start;
            padding: 20px;
            background: var(--bg-card);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            transition: all var(--transition-base);
        }

        .safety-item:hover {
            border-color: var(--success);
            box-shadow: var(--shadow-sm);
        }

        .safety-icon {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 44px;
            height: 44px;
            background: rgba(22,163,74,0.1);
            border-radius: var(--radius-md);
            font-size: 22px;
            flex-shrink: 0;
        }

        .safety-text-title {
            font-size: 15px;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 4px;
        }

        .safety-text-desc {
            font-size: 13px;
            color: var(--text-secondary);
            line-height: 1.6;
        }

        /* ===== 下载教程 ===== */
        .steps-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }

        .step-card {
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            border: 1px solid var(--border);
            padding: 28px 24px;
            box-shadow: var(--shadow-sm);
            transition: all var(--transition-base);
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .step-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-2px);
            border-color: rgba(14,159,110,0.3);
        }

        .step-number {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            background: var(--primary);
            color: #fff;
            font-size: 18px;
            font-weight: 700;
            border-radius: 50%;
            margin-bottom: 4px;
        }

        .step-title {
            font-size: 16px;
            font-weight: 600;
            color: var(--text-primary);
        }

        .step-desc {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
        }

        .step-img {
            margin-top: 8px;
            aspect-ratio: 16/9;
            border-radius: var(--radius-sm);
            overflow: hidden;
            background: #F3F4F6;
        }

        /* ===== 标签云 ===== */
        .tag-cloud {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            justify-content: center;
        }

        /* ===== 用户评价 ===== */
        .review-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }

        .review-card {
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            border: 1px solid var(--border);
            padding: 24px;
            box-shadow: var(--shadow-sm);
            display: flex;
            flex-direction: column;
            gap: 12px;
            transition: all var(--transition-base);
        }

        .review-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-2px);
        }

        .review-stars {
            color: #F59E0B;
            font-size: 16px;
            letter-spacing: 2px;
        }

        .review-content {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
            flex: 1;
        }

        .review-author {
            font-size: 13px;
            font-weight: 600;
            color: var(--text-primary);
            border-top: 1px solid var(--border-light);
            padding-top: 12px;
        }

        /* ===== 统计数字 ===== */
        .stats-bar {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            text-align: center;
        }

        .stat-item {
            padding: 24px;
            background: rgba(255,255,255,0.06);
            border-radius: var(--radius-lg);
            border: 1px solid rgba(249,250,251,0.1);
            transition: background-color var(--transition-fast);
        }

        .stat-item:hover {
            background: rgba(255,255,255,0.1);
        }

        .stat-number {
            font-size: 36px;
            font-weight: 700;
            color: #fff;
            letter-spacing: -1px;
            margin-bottom: 4px;
        }

        .stat-label {
            font-size: 13px;
            color: #9CA3AF;
        }

        /* ===== CMS资讯列表 ===== */
        .article-list-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }

        .article-card {
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            border: 1px solid var(--border);
            box-shadow: var(--shadow-sm);
            padding: 20px;
            display: flex;
            flex-direction: column;
            gap: 8px;
            transition: all var(--transition-base);
            text-decoration: none;
        }

        .article-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-2px);
            text-decoration: none;
            border-color: rgba(14,159,110,0.25);
        }

        .article-card-badge {
            display: inline-flex;
            align-items: center;
            font-size: 12px;
            font-weight: 600;
            color: var(--primary);
            background: var(--primary-light);
            padding: 3px 10px;
            border-radius: 999px;
            align-self: flex-start;
        }

        .article-card-title {
            font-size: 15px;
            font-weight: 600;
            color: var(--text-primary);
            line-height: 1.5;
        }

        .article-card-desc {
            font-size: 13px;
            color: var(--text-secondary);
            line-height: 1.6;
            flex: 1;
        }

        .article-card-meta {
            font-size: 12px;
            color: var(--text-secondary);
            display: flex;
            gap: 12px;
            padding-top: 8px;
            border-top: 1px solid var(--border-light);
        }

        .empty-state {
            text-align: center;
            padding: 40px 20px;
            color: var(--text-secondary);
            font-size: 14px;
        }

        /* ===== FAQ ===== */
        .faq-list {
            max-width: 720px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 0;
        }

        .faq-item {
            border-bottom: 1px solid var(--border);
            transition: background-color var(--transition-fast);
        }

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

        .faq-item summary {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding: 18px 20px;
            font-size: 15px;
            font-weight: 600;
            color: var(--text-primary);
            cursor: pointer;
            list-style: none;
            user-select: none;
            transition: color var(--transition-fast);
            border-radius: var(--radius-sm);
        }

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

        .faq-item summary:hover {
            color: var(--primary);
            background: var(--primary-lighter);
        }

        .faq-item summary::after {
            content: '+';
            font-size: 20px;
            font-weight: 400;
            color: var(--text-secondary);
            transition: transform var(--transition-fast);
        }

        .faq-item[open] summary::after {
            content: '−';
            color: var(--primary);
        }

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

        .faq-answer {
            padding: 0 20px 18px;
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
            background: #F9FAFB;
            border-radius: var(--radius-sm);
            margin: 0 12px 12px;
        }

        /* ===== 订阅区 ===== */
        .subscribe-bar {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 24px;
            padding: 40px 48px;
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            border: 1px solid var(--border);
            box-shadow: var(--shadow-sm);
            flex-wrap: wrap;
        }

        .subscribe-info {
            flex: 1;
            min-width: 260px;
        }

        .subscribe-title {
            font-size: 20px;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 6px;
        }

        .subscribe-desc {
            font-size: 14px;
            color: var(--text-secondary);
        }

        .subscribe-form {
            display: flex;
            gap: 10px;
            flex-shrink: 0;
        }

        .form-input {
            padding: 12px 16px;
            font-size: 14px;
            border: 1px solid #D1D5DB;
            border-radius: var(--radius-md);
            background: var(--bg);
            color: var(--text-primary);
            min-width: 240px;
            transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
            outline: none;
        }

        .form-input::placeholder {
            color: #9CA3AF;
        }

        .form-input:focus {
            border-color: var(--primary);
            box-shadow: var(--focus-ring);
        }

        .form-submit {
            padding: 12px 24px;
            font-size: 14px;
            font-weight: 600;
            background: var(--primary);
            color: #fff;
            border: none;
            border-radius: var(--radius-md);
            cursor: pointer;
            transition: all var(--transition-fast);
            white-space: nowrap;
        }

        .form-submit:hover {
            background: var(--primary-dark);
            box-shadow: 0 2px 8px rgba(14,159,110,0.3);
        }

        .form-submit:focus-visible {
            outline: var(--focus-ring);
            outline-offset: 2px;
        }

        /* ===== 页脚前CTA ===== */
        .cta-bottom {
            padding: 80px 0;
            background: linear-gradient(135deg, #1F2937 0%, #111827 100%);
            text-align: center;
            color: var(--text-light);
        }

        .cta-bottom .section-title {
            color: #fff;
            font-size: 32px;
            margin-bottom: 12px;
        }

        .cta-bottom .section-subtitle {
            color: #9CA3AF;
            max-width: 520px;
            margin: 0 auto 28px;
        }

        .cta-bottom .hero-cta-group {
            justify-content: center;
        }

        /* ===== 页脚 ===== */
        .footer {
            background: #111827;
            color: #9CA3AF;
            padding: 60px 0 0;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr 1fr;
            gap: 40px;
            padding-bottom: 40px;
            border-bottom: 1px solid #374151;
        }

        .footer-col {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .footer-brand {
            font-size: 20px;
            font-weight: 700;
            color: #fff;
            display: flex;
            align-items: center;
            gap: 8px;
            margin-bottom: 8px;
        }

        .footer-brand .logo-icon {
            width: 28px;
            height: 28px;
            font-size: 14px;
        }

        .footer-desc {
            font-size: 13px;
            line-height: 1.7;
            color: #9CA3AF;
        }

        .footer-col-title {
            font-size: 14px;
            font-weight: 600;
            color: #fff;
            margin-bottom: 4px;
        }

        .footer-col a {
            font-size: 13px;
            color: #9CA3AF;
            text-decoration: none;
            transition: color var(--transition-fast);
        }

        .footer-col a:hover {
            color: var(--primary);
            text-decoration: none;
        }

        .footer-social {
            display: flex;
            gap: 10px;
            margin-top: 8px;
        }

        .footer-social-btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: #374151;
            color: #D1D5DB;
            font-size: 16px;
            text-decoration: none;
            transition: all var(--transition-fast);
        }

        .footer-social-btn:hover {
            background: var(--primary);
            color: #fff;
            text-decoration: none;
            transform: translateY(-2px);
        }

        .footer-bottom {
            padding: 20px 0;
            text-align: center;
            font-size: 12px;
            color: #6B7280;
        }

        /* ===== 图片占位 ===== */
        .img-placeholder {
            display: flex;
            align-items: center;
            justify-content: center;
            background: #F3F4F6;
            border-radius: var(--radius-sm);
            color: #9CA3AF;
            font-size: 12px;
            min-height: 80px;
            aspect-ratio: 16/9;
            overflow: hidden;
        }

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

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

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

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

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

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

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

        @media (max-width: 768px) {
            :root {
                --section-gap: 40px;
                --container-pad: 16px;
                --nav-height: 56px;
            }

            body {
                font-size: 15px;
            }

            .navbar .container {
                gap: 8px;
            }

            .nav-menu {
                display: none;
                position: fixed;
                top: var(--nav-height);
                left: 0;
                right: 0;
                bottom: 0;
                background: var(--bg-card);
                flex-direction: column;
                align-items: center;
                justify-content: flex-start;
                padding: 32px 24px;
                gap: 8px;
                z-index: 999;
                box-shadow: var(--shadow-md);
                overflow-y: auto;
            }

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

            .nav-menu a {
                font-size: 16px;
                padding: 14px 20px;
                width: 100%;
                text-align: center;
                border-bottom: 1px solid var(--border-light);
            }

            .nav-menu a::after {
                display: none;
            }

            .nav-actions .nav-search {
                display: none;
            }

            .nav-toggle {
                display: flex;
            }

            .hero {
                padding: 48px 0 56px;
            }

            .hero .container {
                grid-template-columns: 1fr;
                gap: 32px;
            }

            .hero-title {
                font-size: 28px;
                letter-spacing: -0.5px;
            }

            .hero-subtitle {
                font-size: 15px;
            }

            .hero-image-inner {
                max-width: 100%;
                aspect-ratio: 16/9;
            }

            .category-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 10px;
            }

            .category-card {
                padding: 12px 14px;
                gap: 8px;
            }

            .category-icon {
                width: 34px;
                height: 34px;
                font-size: 16px;
            }

            .category-name {
                font-size: 13px;
            }

            .rank-item {
                flex-wrap: wrap;
                gap: 10px;
                padding: 12px 14px;
            }

            .rank-info {
                flex: 1 1 60%;
            }

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

            .recommend-card {
                flex-direction: column;
                gap: 0;
            }

            .recommend-card-img {
                width: 100%;
                aspect-ratio: 16/9;
                min-height: auto;
            }

            .recommend-card-body {
                padding: 16px;
            }

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

            .safety-grid {
                grid-template-columns: 1fr;
                gap: 12px;
            }

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

            .review-grid {
                grid-template-columns: 1fr;
                gap: 12px;
            }

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

            .stat-number {
                font-size: 28px;
            }

            .article-list-grid {
                grid-template-columns: 1fr;
                gap: 12px;
            }

            .section-title {
                font-size: 24px;
            }

            .section-header {
                margin-bottom: 24px;
            }

            .subscribe-bar {
                flex-direction: column;
                padding: 24px 20px;
                gap: 16px;
                text-align: center;
            }

            .subscribe-form {
                flex-direction: column;
                width: 100%;
            }

            .form-input {
                min-width: 0;
                width: 100%;
            }

            .form-submit {
                width: 100%;
            }

            .cta-bottom {
                padding: 48px 0;
            }

            .cta-bottom .section-title {
                font-size: 24px;
            }

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

        @media (max-width: 480px) {
            .hero-title {
                font-size: 22px;
            }

            .hero-cta-group {
                flex-direction: column;
                gap: 8px;
            }

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

            .hero-trust-row {
                flex-direction: column;
                gap: 8px;
            }

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

            .rank-item {
                flex-direction: column;
                align-items: flex-start;
            }

            .rank-meta {
                flex-wrap: wrap;
            }

            .rank-list .btn-download {
                width: 100%;
                justify-content: center;
            }

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

            .stats-bar {
                grid-template-columns: 1fr 1fr;
                gap: 8px;
            }

            .stat-number {
                font-size: 24px;
            }

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

            .tag-cloud {
                justify-content: flex-start;
            }
        }

/* roulang page: article */
:root {
            --primary: #0E9F6E;
            --primary-dark: #0B8A5F;
            --primary-light: rgba(14,159,110,0.1);
            --primary-lighter: rgba(14,159,110,0.05);
            --accent: #FF7A00;
            --accent-dark: #EA580C;
            --accent-light: rgba(255,122,0,0.1);
            --bg: #F7F9FA;
            --bg-card: #FFFFFF;
            --bg-dark: #1F2937;
            --text-primary: #1F2937;
            --text-secondary: #6B7280;
            --text-light: #F9FAFB;
            --border: #E5E7EB;
            --border-light: #F3F4F6;
            --success: #16A34A;
            --danger: #EF4444;
            --radius-sm: 6px;
            --radius-md: 8px;
            --radius-lg: 10px;
            --radius-xl: 16px;
            --shadow-sm: 0 2px 8px rgba(31,41,55,0.06);
            --shadow-md: 0 4px 16px rgba(31,41,55,0.1);
            --shadow-lg: 0 8px 24px rgba(31,41,55,0.12);
            --shadow-hover: 0 8px 24px rgba(31,41,55,0.12);
            --font-cn: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
            --font-en: "Inter", "PingFang SC", "Microsoft YaHei", sans-serif;
            --container-max: 1200px;
            --container-pad: 24px;
            --section-gap: 80px;
            --section-gap-mobile: 40px;
            --nav-height: 64px;
            --transition-fast: 0.2s ease;
            --transition-base: 0.3s ease;
            --transition-slow: 0.5s ease;
            --focus-ring: 3px solid rgba(14,159,110,0.3);
            --focus-ring-accent: 3px solid rgba(255,122,0,0.3);
        }
        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        body {
            font-family: var(--font-cn);
            font-size: 16px;
            line-height: 1.7;
            color: var(--text-primary);
            background-color: var(--bg);
            padding-top: var(--nav-height);
            overflow-x: hidden;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border: 0;
        }
        a {
            color: var(--primary);
            text-decoration: none;
            transition: color var(--transition-fast);
        }
        a:hover {
            color: var(--primary-dark);
            text-decoration: underline;
        }
        a:focus-visible,
        button:focus-visible,
        input:focus-visible {
            outline: var(--focus-ring);
            outline-offset: 2px;
        }
        button {
            font-family: var(--font-cn);
            cursor: pointer;
            border: none;
            background: none;
            font-size: inherit;
            line-height: inherit;
        }
        input {
            font-family: var(--font-cn);
            font-size: inherit;
        }
        .container {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 var(--container-pad);
            width: 100%;
        }
        /* 导航 */
        .navbar {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            width: 100%;
            height: var(--nav-height);
            z-index: 1000;
            background: var(--bg-card);
            border-bottom: 1px solid var(--border);
            display: flex;
            align-items: center;
            transition: box-shadow var(--transition-base);
        }
        .navbar.scrolled {
            box-shadow: var(--shadow-sm);
        }
        .navbar .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            height: 100%;
        }
        .navbar .logo {
            display: flex;
            align-items: center;
            gap: 8px;
            flex-shrink: 0;
            font-size: 18px;
            font-weight: 700;
            color: var(--primary);
            text-decoration: none;
            letter-spacing: -0.3px;
            white-space: nowrap;
        }
        .navbar .logo:hover {
            color: var(--primary-dark);
            text-decoration: none;
        }
        .logo-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 32px;
            height: 32px;
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            border-radius: var(--radius-sm);
            color: #fff;
            font-size: 16px;
            flex-shrink: 0;
        }
        .nav-menu {
            display: flex;
            align-items: center;
            gap: 4px;
            flex: 1;
            justify-content: center;
        }
        .nav-menu a {
            display: inline-block;
            padding: 8px 14px;
            font-size: 14px;
            font-weight: 500;
            color: var(--text-primary);
            text-decoration: none;
            border-radius: var(--radius-md);
            position: relative;
            transition: color var(--transition-fast), background-color var(--transition-fast);
            white-space: nowrap;
        }
        .nav-menu a::after {
            content: '';
            position: absolute;
            left: 14px;
            right: 14px;
            bottom: 2px;
            height: 2px;
            background: var(--primary);
            border-radius: 999px;
            transform: scaleX(0);
            transform-origin: center;
            transition: transform var(--transition-base);
        }
        .nav-menu a:hover,
        .nav-menu a.active {
            color: var(--primary);
            background-color: var(--primary-light);
            text-decoration: none;
        }
        .nav-menu a:hover::after,
        .nav-menu a.active::after {
            transform: scaleX(1);
        }
        .nav-actions {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }
        .nav-search {
            display: flex;
            align-items: center;
            background: var(--border-light);
            border-radius: 999px;
            padding: 6px 12px;
            gap: 6px;
            border: 1px solid transparent;
            transition: border-color var(--transition-fast), background-color var(--transition-fast);
        }
        .nav-search:focus-within {
            border-color: var(--primary);
            background-color: #fff;
            box-shadow: 0 0 0 3px rgba(14,159,110,0.1);
        }
        .nav-search input {
            border: none;
            background: none;
            outline: none;
            width: 140px;
            font-size: 13px;
            color: var(--text-primary);
        }
        .search-icon {
            font-size: 14px;
            opacity: 0.7;
        }
        .btn-small {
            display: inline-block;
            padding: 8px 16px;
            background: var(--accent);
            color: #fff;
            border-radius: var(--radius-md);
            font-size: 13px;
            font-weight: 600;
            text-decoration: none;
            transition: background-color var(--transition-fast), box-shadow var(--transition-fast);
            white-space: nowrap;
        }
        .btn-small:hover {
            background: var(--accent-dark);
            color: #fff;
            text-decoration: none;
            box-shadow: var(--shadow-sm);
        }
        .nav-toggle {
            display: none;
            flex-direction: column;
            justify-content: center;
            gap: 4px;
            width: 40px;
            height: 40px;
            padding: 8px;
            border-radius: var(--radius-sm);
            background: var(--primary-light);
            transition: background-color var(--transition-fast);
        }
        .nav-toggle span {
            display: block;
            width: 100%;
            height: 2px;
            background: var(--primary);
            border-radius: 999px;
            transition: transform var(--transition-base), opacity var(--transition-base);
        }
        .nav-toggle.open span:nth-child(1) {
            transform: translateY(6px) rotate(45deg);
        }
        .nav-toggle.open span:nth-child(2) {
            opacity: 0;
        }
        .nav-toggle.open span:nth-child(3) {
            transform: translateY(-6px) rotate(-45deg);
        }
        /* 面包屑 */
        .breadcrumb-nav {
            padding: 16px 0 0;
            font-size: 14px;
            color: var(--text-secondary);
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 8px;
        }
        .breadcrumb-nav a {
            color: var(--text-secondary);
            text-decoration: none;
        }
        .breadcrumb-nav a:hover {
            color: var(--primary);
            text-decoration: underline;
        }
        .breadcrumb-nav .separator {
            color: var(--text-secondary);
            opacity: 0.6;
        }
        .breadcrumb-nav .current {
            color: var(--text-primary);
            font-weight: 500;
            max-width: 300px;
            overflow: hidden;
            text-overflow: ellipsis;
            white-space: nowrap;
        }
        /* 文章主体 */
        .article-main {
            padding: 40px 0 80px;
            background: var(--bg);
        }
        .article-header {
            max-width: 760px;
            margin: 0 auto 40px;
            padding: 0 0 32px;
            border-bottom: 1px solid var(--border);
        }
        .article-header h1 {
            font-size: 32px;
            line-height: 1.3;
            font-weight: 700;
            color: var(--text-primary);
            margin: 0 0 16px;
            letter-spacing: -0.5px;
        }
        .article-meta {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            align-items: center;
            font-size: 14px;
            color: var(--text-secondary);
            margin-bottom: 20px;
        }
        .article-meta .meta-item {
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .article-meta .meta-icon {
            opacity: 0.7;
        }
        .article-featured-image {
            width: 100%;
            aspect-ratio: 16 / 9;
            border-radius: var(--radius-lg);
            overflow: hidden;
            background: var(--border-light);
            margin-bottom: 24px;
        }
        .article-featured-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        .article-body {
            max-width: 760px;
            margin: 0 auto;
        }
        .article-content {
            font-size: 16px;
            line-height: 1.9;
            color: var(--text-primary);
        }
        .article-content h2 {
            font-size: 24px;
            font-weight: 700;
            margin: 32px 0 16px;
            color: var(--text-primary);
        }
        .article-content h3 {
            font-size: 20px;
            font-weight: 600;
            margin: 24px 0 12px;
            color: var(--text-primary);
        }
        .article-content p {
            margin: 0 0 18px;
        }
        .article-content ul,
        .article-content ol {
            padding-left: 1.5em;
            margin: 0 0 18px;
        }
        .article-content li {
            margin-bottom: 8px;
        }
        .article-content blockquote {
            margin: 24px 0;
            padding: 16px 20px;
            background: var(--primary-lighter);
            border-left: 3px solid var(--primary);
            border-radius: 0 var(--radius-md) var(--radius-md) 0;
            color: var(--text-secondary);
            font-style: italic;
        }
        .article-content img {
            max-width: 100%;
            border-radius: var(--radius-lg);
            margin: 20px 0;
        }
        .article-content code {
            background: var(--border-light);
            padding: 2px 6px;
            border-radius: 4px;
            font-family: "Inter", monospace;
            font-size: 0.9em;
        }
        .article-notfound {
            text-align: center;
            padding: 80px 20px;
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-sm);
        }
        .article-notfound h2 {
            font-size: 24px;
            margin-bottom: 12px;
        }
        .article-notfound p {
            color: var(--text-secondary);
            margin-bottom: 24px;
        }
        .btn {
            display: inline-block;
            padding: 12px 28px;
            border-radius: var(--radius-md);
            font-size: 15px;
            font-weight: 600;
            text-decoration: none;
            transition: all var(--transition-fast);
            border: none;
            cursor: pointer;
        }
        .btn-primary {
            background: var(--primary);
            color: #fff;
        }
        .btn-primary:hover {
            background: var(--primary-dark);
            color: #fff;
            text-decoration: none;
            box-shadow: var(--shadow-sm);
        }
        .btn-accent {
            background: var(--accent);
            color: #fff;
        }
        .btn-accent:hover {
            background: var(--accent-dark);
            color: #fff;
            text-decoration: none;
            box-shadow: var(--shadow-sm);
        }
        /* 文章支撑板块 */
        .article-support-section {
            max-width: 760px;
            margin: 40px auto 0;
        }
        .article-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            margin-bottom: 24px;
        }
        .tag {
            display: inline-block;
            padding: 6px 16px;
            background: var(--primary-light);
            color: var(--primary);
            border-radius: 999px;
            font-size: 13px;
            font-weight: 500;
            text-decoration: none;
            transition: background-color var(--transition-fast), color var(--transition-fast);
        }
        .tag:hover {
            background: var(--primary);
            color: #fff;
            text-decoration: none;
        }
        .article-prev-next {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 16px;
            margin-bottom: 24px;
        }
        .prev-next-card {
            background: var(--bg-card);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: 16px 20px;
            box-shadow: var(--shadow-sm);
            transition: box-shadow var(--transition-fast), transform var(--transition-fast);
        }
        .prev-next-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-2px);
        }
        .prev-next-card .label {
            font-size: 13px;
            color: var(--text-secondary);
            margin-bottom: 6px;
        }
        .prev-next-card .link-text {
            font-weight: 600;
            color: var(--text-primary);
            text-decoration: none;
        }
        .prev-next-card .link-text:hover {
            color: var(--primary);
            text-decoration: underline;
        }
        .article-share {
            display: flex;
            align-items: center;
            gap: 12px;
            flex-wrap: wrap;
            margin-bottom: 24px;
            padding: 16px 0;
            border-top: 1px solid var(--border);
            border-bottom: 1px solid var(--border);
        }
        .share-label {
            font-weight: 600;
            color: var(--text-primary);
        }
        .share-btn {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 8px 16px;
            background: var(--border-light);
            border-radius: 999px;
            font-size: 13px;
            font-weight: 500;
            color: var(--text-primary);
            text-decoration: none;
            transition: background-color var(--transition-fast);
        }
        .share-btn:hover {
            background: var(--primary-light);
            color: var(--primary);
            text-decoration: none;
        }
        .article-cta-box {
            background: var(--bg-dark);
            border-radius: var(--radius-lg);
            padding: 28px;
            color: var(--text-light);
            margin-bottom: 24px;
        }
        .article-cta-box h3 {
            color: #fff;
            margin-bottom: 8px;
            font-size: 20px;
        }
        .article-cta-box p {
            color: rgba(255,255,255,0.8);
            margin-bottom: 16px;
            font-size: 15px;
        }
        .article-cta-box .input-group {
            display: flex;
            gap: 10px;
            flex-wrap: wrap;
        }
        .article-cta-box input {
            flex: 1;
            min-width: 200px;
            padding: 10px 16px;
            border-radius: var(--radius-md);
            border: 1px solid rgba(255,255,255,0.3);
            background: rgba(255,255,255,0.15);
            color: #fff;
            outline: none;
            transition: border-color var(--transition-fast), background-color var(--transition-fast);
        }
        .article-cta-box input::placeholder {
            color: rgba(255,255,255,0.7);
        }
        .article-cta-box input:focus {
            border-color: var(--primary);
            background: rgba(255,255,255,0.25);
        }
        .article-safety-note {
            display: flex;
            align-items: flex-start;
            gap: 12px;
            padding: 16px 20px;
            border-radius: var(--radius-md);
            background: rgba(22,163,74,0.08);
            border: 1px solid rgba(22,163,74,0.2);
        }
        .safety-icon {
            font-size: 24px;
            flex-shrink: 0;
        }
        .article-safety-note p {
            margin: 0;
            color: var(--text-secondary);
            font-size: 14px;
            line-height: 1.6;
        }
        /* 页脚 */
        .footer {
            background: var(--bg-dark);
            color: rgba(255,255,255,0.8);
            padding: 48px 0 24px;
            margin-top: 0;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 32px;
            margin-bottom: 32px;
        }
        .footer-col {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .footer-brand {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 18px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 8px;
        }
        .footer-brand .logo-icon {
            background: var(--primary);
        }
        .footer-desc {
            font-size: 14px;
            line-height: 1.8;
            margin: 0 0 8px;
            color: rgba(255,255,255,0.7);
        }
        .footer-social {
            display: flex;
            gap: 8px;
            flex-wrap: wrap;
        }
        .footer-social-btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 36px;
            height: 36px;
            background: rgba(255,255,255,0.1);
            border-radius: 50%;
            color: #fff;
            text-decoration: none;
            font-size: 16px;
            transition: background-color var(--transition-fast);
        }
        .footer-social-btn:hover {
            background: var(--primary);
            color: #fff;
            text-decoration: none;
        }
        .footer-col-title {
            font-size: 16px;
            font-weight: 600;
            color: #fff;
            margin-bottom: 4px;
        }
        .footer-col a {
            color: rgba(255,255,255,0.7);
            text-decoration: none;
            font-size: 14px;
            transition: color var(--transition-fast);
        }
        .footer-col a:hover {
            color: var(--primary);
            text-decoration: underline;
        }
        .footer-bottom {
            border-top: 1px solid rgba(255,255,255,0.1);
            padding-top: 20px;
            text-align: center;
            font-size: 12px;
            color: rgba(255,255,255,0.5);
        }
        /* 响应式 */
        @media (max-width: 1024px) {
            .nav-menu {
                gap: 0;
            }
            .nav-menu a {
                padding: 8px 10px;
                font-size: 13px;
            }
            .nav-search input {
                width: 100px;
            }
        }
        @media (max-width: 768px) {
            :root {
                --section-gap: 40px;
                --container-pad: 16px;
                --nav-height: 56px;
            }
            body {
                padding-top: var(--nav-height);
            }
            .navbar .container {
                gap: 10px;
            }
            .nav-menu {
                position: fixed;
                top: var(--nav-height);
                left: 0;
                right: 0;
                background: #fff;
                flex-direction: column;
                align-items: flex-start;
                padding: 16px;
                gap: 8px;
                border-bottom: 1px solid var(--border);
                box-shadow: var(--shadow-md);
                transform: translateY(-110%);
                transition: transform var(--transition-base);
                z-index: 999;
                justify-content: flex-start;
            }
            .nav-menu.open {
                transform: translateY(0);
            }
            .nav-menu a {
                width: 100%;
                padding: 12px 16px;
                font-size: 15px;
            }
            .nav-menu a::after {
                display: none;
            }
            .nav-actions {
                gap: 8px;
            }
            .nav-search {
                padding: 6px 10px;
            }
            .nav-search input {
                width: 80px;
            }
            .nav-toggle {
                display: flex;
            }
            .breadcrumb-nav {
                padding-top: 12px;
                font-size: 13px;
            }
            .article-main {
                padding: 24px 0 60px;
            }
            .article-header h1 {
                font-size: 26px;
            }
            .article-body,
            .article-support-section {
                max-width: 100%;
            }
            .article-prev-next {
                grid-template-columns: 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 24px;
            }
        }
        @media (max-width: 480px) {
            .article-header h1 {
                font-size: 22px;
            }
            .article-content {
                font-size: 15px;
            }
            .article-cta-box {
                padding: 20px;
            }
            .article-cta-box .input-group {
                flex-direction: column;
            }
            .article-cta-box input {
                min-width: auto;
                width: 100%;
            }
            .footer-grid {
                grid-template-columns: 1fr;
            }
            .navbar .logo {
                font-size: 16px;
            }
            .logo-icon {
                width: 28px;
                height: 28px;
                font-size: 14px;
            }
            .btn-small {
                padding: 6px 12px;
                font-size: 12px;
            }
        }

/* roulang page: category1 */
:root {
            --primary: #0E9F6E;
            --primary-dark: #0B8A5F;
            --primary-light: rgba(14,159,110,0.1);
            --primary-lighter: rgba(14,159,110,0.05);
            --accent: #FF7A00;
            --accent-dark: #EA580C;
            --accent-light: rgba(255,122,0,0.1);
            --bg: #F7F9FA;
            --bg-card: #FFFFFF;
            --bg-dark: #1F2937;
            --text-primary: #1F2937;
            --text-secondary: #6B7280;
            --text-light: #F9FAFB;
            --border: #E5E7EB;
            --border-light: #F3F4F6;
            --success: #16A34A;
            --danger: #EF4444;
            --radius-sm: 6px;
            --radius-md: 8px;
            --radius-lg: 10px;
            --radius-xl: 16px;
            --shadow-sm: 0 2px 8px rgba(31,41,55,0.06);
            --shadow-md: 0 4px 16px rgba(31,41,55,0.1);
            --shadow-lg: 0 8px 24px rgba(31,41,55,0.12);
            --shadow-hover: 0 8px 24px rgba(31,41,55,0.12);
            --font-cn: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
            --font-en: "Inter", "PingFang SC", "Microsoft YaHei", sans-serif;
            --container-max: 1200px;
            --container-pad: 24px;
            --section-gap: 40px;
            --section-gap-mobile: 24px;
            --nav-height: 64px;
            --transition-fast: 0.2s ease;
            --transition-base: 0.3s ease;
            --transition-slow: 0.5s ease;
            --focus-ring: 3px solid rgba(14,159,110,0.3);
            --focus-ring-accent: 3px solid rgba(255,122,0,0.3);
        }

        *,
        *::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-cn);
            font-size: 16px;
            line-height: 1.7;
            color: var(--text-primary);
            background-color: var(--bg);
            padding-top: var(--nav-height);
            overflow-x: hidden;
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
            border: 0;
        }

        ul,
        ol {
            list-style: none;
        }

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

        a:hover {
            color: var(--primary-dark);
            text-decoration: underline;
        }

        a:focus-visible,
        button:focus-visible,
        input:focus-visible,
        select:focus-visible {
            outline: var(--focus-ring);
            outline-offset: 2px;
        }

        button {
            font-family: var(--font-cn);
            cursor: pointer;
            border: none;
            background: none;
            font-size: inherit;
            line-height: inherit;
        }

        input,
        select {
            font-family: var(--font-cn);
            font-size: inherit;
        }

        .container {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 var(--container-pad);
            width: 100%;
        }

        /* ===== 导航 ===== */
        .navbar {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            width: 100%;
            height: var(--nav-height);
            z-index: 1000;
            background: var(--bg-card);
            border-bottom: 1px solid var(--border);
            display: flex;
            align-items: center;
            transition: box-shadow var(--transition-base);
        }

        .navbar.scrolled {
            box-shadow: var(--shadow-sm);
        }

        .navbar .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            height: 100%;
        }

        .navbar .logo {
            display: flex;
            align-items: center;
            gap: 8px;
            flex-shrink: 0;
            font-size: 18px;
            font-weight: 700;
            color: var(--primary);
            text-decoration: none;
            letter-spacing: -0.3px;
            white-space: nowrap;
        }

        .navbar .logo:hover {
            color: var(--primary-dark);
            text-decoration: none;
        }

        .logo-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 32px;
            height: 32px;
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            border-radius: var(--radius-sm);
            color: #fff;
            font-size: 16px;
            flex-shrink: 0;
        }

        .nav-menu {
            display: flex;
            align-items: center;
            gap: 4px;
            flex: 1;
            justify-content: center;
        }

        .nav-menu a {
            display: inline-block;
            padding: 8px 14px;
            font-size: 14px;
            font-weight: 500;
            color: var(--text-primary);
            text-decoration: none;
            border-radius: var(--radius-md);
            position: relative;
            transition: color var(--transition-fast), background-color var(--transition-fast);
            white-space: nowrap;
        }

        .nav-menu a::after {
            content: '';
            position: absolute;
            left: 14px;
            right: 14px;
            bottom: 4px;
            height: 2px;
            background: var(--primary);
            border-radius: 1px;
            transform: scaleX(0);
            transform-origin: center;
            transition: transform var(--transition-fast);
        }

        .nav-menu a:hover {
            color: var(--primary);
            background: var(--primary-lighter);
            text-decoration: none;
        }

        .nav-menu a:hover::after {
            transform: scaleX(1);
        }

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

        .nav-menu a.active::after {
            transform: scaleX(1);
        }

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

        .nav-search {
            display: flex;
            align-items: center;
            gap: 6px;
            background: var(--bg);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            padding: 0 12px;
            height: 36px;
            width: 200px;
            transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
        }

        .nav-search:focus-within {
            border-color: var(--primary);
            box-shadow: 0 0 0 3px var(--primary-light);
        }

        .search-icon {
            font-size: 14px;
            color: var(--text-secondary);
            flex-shrink: 0;
        }

        .nav-search input {
            border: none;
            background: transparent;
            outline: none;
            width: 100%;
            font-size: 13px;
            color: var(--text-primary);
        }

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

        .btn-small {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 8px 16px;
            background: var(--accent);
            color: #fff;
            font-size: 13px;
            font-weight: 600;
            border-radius: var(--radius-md);
            text-decoration: none;
            white-space: nowrap;
            transition: background-color var(--transition-fast), box-shadow var(--transition-fast);
        }

        .btn-small:hover {
            background: var(--accent-dark);
            color: #fff;
            text-decoration: none;
            box-shadow: 0 2px 8px var(--accent-light);
        }

        .nav-toggle {
            display: none;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            gap: 4px;
            width: 40px;
            height: 40px;
            border-radius: var(--radius-md);
            background: var(--bg);
            border: 1px solid var(--border);
            padding: 0;
        }

        .nav-toggle span {
            display: block;
            width: 18px;
            height: 2px;
            background: var(--text-primary);
            border-radius: 1px;
            transition: all var(--transition-fast);
        }

        .nav-toggle.active span:nth-child(1) {
            transform: rotate(45deg) translate(4px, 4px);
        }

        .nav-toggle.active span:nth-child(2) {
            opacity: 0;
        }

        .nav-toggle.active span:nth-child(3) {
            transform: rotate(-45deg) translate(4px, -4px);
        }

        /* ===== 分类 Header ===== */
        .category-header {
            background: linear-gradient(180deg, rgba(14,159,110,0.08) 0%, rgba(14,159,110,0.02) 100%);
            padding: 48px 0 32px;
            border-bottom: 1px solid var(--border-light);
        }

        .category-header .container {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
            align-items: center;
        }

        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            color: var(--text-secondary);
            margin-bottom: 16px;
            flex-wrap: wrap;
        }

        .breadcrumb a {
            color: var(--text-secondary);
            text-decoration: none;
            transition: color var(--transition-fast);
        }

        .breadcrumb a:hover {
            color: var(--primary);
            text-decoration: none;
        }

        .breadcrumb .separator {
            color: var(--border);
            user-select: none;
        }

        .breadcrumb .current {
            color: var(--primary);
            font-weight: 500;
        }

        .category-header h1 {
            font-size: 32px;
            font-weight: 700;
            line-height: 1.3;
            color: var(--text-primary);
            margin-bottom: 14px;
            letter-spacing: -0.5px;
        }

        .category-header h1 .highlight {
            color: var(--primary);
        }

        .category-header-desc {
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.7;
            max-width: 540px;
            margin-bottom: 20px;
        }

        .category-stats {
            display: flex;
            gap: 24px;
            flex-wrap: wrap;
        }

        .stat-item {
            display: flex;
            flex-direction: column;
            gap: 2px;
        }

        .stat-number {
            font-size: 20px;
            font-weight: 700;
            color: var(--primary);
            line-height: 1.2;
        }

        .stat-label {
            font-size: 12px;
            color: var(--text-secondary);
        }

        .category-header-image {
            display: flex;
            align-items: center;
            justify-content: center;
        }

        .category-header-image img {
            width: 100%;
            max-width: 480px;
            border-radius: var(--radius-xl);
            box-shadow: var(--shadow-md);
            object-fit: cover;
        }

        /* ===== 筛选栏 ===== */
        .filter-bar {
            background: var(--bg-card);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: 16px 20px;
            margin-top: -20px;
            box-shadow: var(--shadow-sm);
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px;
            position: relative;
            z-index: 10;
        }

        .filter-bar .filter-left {
            display: flex;
            align-items: center;
            gap: 12px;
            flex-wrap: wrap;
        }

        .filter-bar .filter-label {
            font-size: 13px;
            font-weight: 600;
            color: var(--text-secondary);
            white-space: nowrap;
        }

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

        .filter-tag {
            padding: 6px 14px;
            font-size: 13px;
            font-weight: 500;
            border-radius: 999px;
            border: 1px solid var(--border);
            background: var(--bg-card);
            color: var(--text-secondary);
            cursor: pointer;
            transition: all var(--transition-fast);
            white-space: nowrap;
        }

        .filter-tag:hover {
            border-color: var(--primary);
            color: var(--primary);
            background: var(--primary-lighter);
        }

        .filter-tag.active {
            background: var(--primary);
            border-color: var(--primary);
            color: #fff;
        }

        .filter-sort {
            display: flex;
            align-items: center;
            gap: 8px;
            flex-wrap: wrap;
        }

        .sort-btn {
            padding: 6px 14px;
            font-size: 13px;
            font-weight: 500;
            border-radius: 999px;
            border: 1px solid var(--border);
            background: var(--bg-card);
            color: var(--text-secondary);
            cursor: pointer;
            transition: all var(--transition-fast);
        }

        .sort-btn:hover {
            border-color: var(--primary);
            color: var(--primary);
            background: var(--primary-lighter);
        }

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

        /* ===== 资源列表 ===== */
        .resource-section {
            padding: 40px 0;
        }

        .section-header {
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-bottom: 24px;
            gap: 16px;
            flex-wrap: wrap;
        }

        .section-title {
            font-size: 22px;
            font-weight: 700;
            color: var(--text-primary);
            line-height: 1.3;
            letter-spacing: -0.3px;
        }

        .section-title .highlight {
            color: var(--primary);
        }

        .section-subtitle {
            font-size: 14px;
            color: var(--text-secondary);
        }

        .resource-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .resource-item {
            display: flex;
            align-items: center;
            gap: 16px;
            padding: 16px 20px;
            background: var(--bg-card);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            transition: box-shadow var(--transition-fast), transform var(--transition-fast);
        }

        .resource-item:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-2px);
        }

        .resource-icon {
            width: 48px;
            height: 48px;
            border-radius: var(--radius-md);
            background: var(--primary-lighter);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 22px;
            flex-shrink: 0;
            color: var(--primary);
        }

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

        .resource-info .resource-name {
            font-size: 15px;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 4px;
            display: flex;
            align-items: center;
            gap: 8px;
            flex-wrap: wrap;
        }

        .resource-info .resource-name .version {
            font-size: 12px;
            font-weight: 400;
            color: var(--text-secondary);
            background: var(--bg);
            border: 1px solid var(--border-light);
            border-radius: 999px;
            padding: 2px 8px;
        }

        .resource-info .resource-meta {
            font-size: 13px;
            color: var(--text-secondary);
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
        }

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

        .resource-category {
            display: inline-block;
            font-size: 11px;
            font-weight: 600;
            color: var(--primary);
            background: var(--primary-lighter);
            border-radius: 999px;
            padding: 2px 10px;
            margin-left: 4px;
        }

        .btn-download {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 6px;
            padding: 8px 18px;
            background: var(--accent);
            color: #fff;
            font-size: 13px;
            font-weight: 600;
            border-radius: var(--radius-md);
            text-decoration: none;
            white-space: nowrap;
            transition: background-color var(--transition-fast), box-shadow var(--transition-fast);
            flex-shrink: 0;
        }

        .btn-download:hover {
            background: var(--accent-dark);
            color: #fff;
            text-decoration: none;
            box-shadow: 0 2px 8px var(--accent-light);
        }

        /* ===== 分页 ===== */
        .pagination-section {
            padding: 16px 0 40px;
            display: flex;
            justify-content: center;
        }

        .pagination {
            display: flex;
            align-items: center;
            gap: 6px;
            flex-wrap: wrap;
            justify-content: center;
        }

        .page-btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            min-width: 38px;
            height: 38px;
            padding: 0 12px;
            font-size: 14px;
            font-weight: 500;
            border-radius: var(--radius-md);
            border: 1px solid var(--border);
            background: var(--bg-card);
            color: var(--text-primary);
            cursor: pointer;
            transition: all var(--transition-fast);
            text-decoration: none;
        }

        .page-btn:hover {
            border-color: var(--primary);
            color: var(--primary);
            background: var(--primary-lighter);
            text-decoration: none;
        }

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

        .page-btn.disabled {
            opacity: 0.5;
            cursor: not-allowed;
            pointer-events: none;
        }

        /* ===== 专题推荐 ===== */
        .topic-section {
            padding: 40px 0;
            background: var(--bg-card);
            border-top: 1px solid var(--border-light);
            border-bottom: 1px solid var(--border-light);
        }

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

        .topic-card {
            background: var(--bg);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            overflow: hidden;
            transition: box-shadow var(--transition-fast), transform var(--transition-fast);
            text-decoration: none;
        }

        .topic-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-3px);
            text-decoration: none;
        }

        .topic-card .topic-image {
            height: 160px;
            background: var(--border-light);
            overflow: hidden;
        }

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

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

        .topic-card .topic-name {
            font-size: 15px;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 4px;
        }

        .topic-card .topic-desc {
            font-size: 13px;
            color: var(--text-secondary);
            line-height: 1.6;
            margin-bottom: 8px;
        }

        .topic-card .topic-count {
            font-size: 12px;
            color: var(--primary);
            font-weight: 500;
        }

        /* ===== 教程步骤 ===== */
        .tutorial-section {
            padding: 40px 0;
        }

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

        .step-card {
            background: var(--bg-card);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: 24px;
            text-align: center;
            transition: box-shadow var(--transition-fast);
        }

        .step-card:hover {
            box-shadow: var(--shadow-md);
        }

        .step-number {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: var(--primary);
            color: #fff;
            font-size: 16px;
            font-weight: 700;
            margin-bottom: 14px;
        }

        .step-card h3 {
            font-size: 16px;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 8px;
            line-height: 1.4;
        }

        .step-card p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.6;
        }

        /* ===== 安全提示 ===== */
        .security-section {
            padding: 40px 0;
            background: var(--bg-card);
            border-top: 1px solid var(--border-light);
            border-bottom: 1px solid var(--border-light);
        }

        .security-banner {
            display: flex;
            align-items: center;
            gap: 20px;
            padding: 24px 28px;
            background: linear-gradient(135deg, rgba(22,163,74,0.06) 0%, rgba(14,159,110,0.04) 100%);
            border: 1px solid rgba(22,163,74,0.2);
            border-radius: var(--radius-lg);
        }

        .security-icon {
            font-size: 36px;
            flex-shrink: 0;
            display: flex;
            align-items: center;
            justify-content: center;
            width: 56px;
            height: 56px;
            background: rgba(22,163,74,0.1);
            border-radius: 50%;
            color: var(--success);
        }

        .security-text h3 {
            font-size: 16px;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 6px;
        }

        .security-text p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.6;
        }

        /* ===== CMS 资讯列表 ===== */
        .news-section {
            padding: 40px 0;
        }

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

        .news-item {
            display: flex;
            gap: 14px;
            padding: 16px;
            background: var(--bg-card);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            text-decoration: none;
            transition: box-shadow var(--transition-fast), transform var(--transition-fast);
        }

        .news-item:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-2px);
            text-decoration: none;
        }

        .news-item .news-thumb {
            width: 80px;
            height: 60px;
            flex-shrink: 0;
            border-radius: var(--radius-sm);
            background: var(--border-light);
            overflow: hidden;
        }

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

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

        .news-item .news-title {
            font-size: 14px;
            font-weight: 600;
            color: var(--text-primary);
            line-height: 1.5;
            margin-bottom: 4px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .news-item .news-meta {
            display: flex;
            gap: 10px;
            font-size: 12px;
            color: var(--text-secondary);
            flex-wrap: wrap;
        }

        .news-item .news-category {
            color: var(--primary);
            font-weight: 500;
        }

        .news-empty {
            text-align: center;
            color: var(--text-secondary);
            font-size: 14px;
            padding: 24px;
            background: var(--bg-card);
            border: 1px dashed var(--border);
            border-radius: var(--radius-lg);
            grid-column: 1 / -1;
        }

        /* ===== 推荐栏目 ===== */
        .recommend-section {
            padding: 40px 0;
            background: var(--bg-card);
            border-top: 1px solid var(--border-light);
        }

        .recommend-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 16px;
        }

        .recommend-card {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 16px;
            background: var(--bg);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            text-decoration: none;
            transition: box-shadow var(--transition-fast), transform var(--transition-fast);
        }

        .recommend-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-2px);
            text-decoration: none;
        }

        .recommend-card .recommend-icon {
            width: 40px;
            height: 40px;
            flex-shrink: 0;
            display: flex;
            align-items: center;
            justify-content: center;
            background: var(--primary-lighter);
            border-radius: var(--radius-md);
            font-size: 18px;
            color: var(--primary);
        }

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

        .recommend-card .recommend-name {
            font-size: 14px;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 2px;
        }

        .recommend-card .recommend-desc {
            font-size: 12px;
            color: var(--text-secondary);
        }

        .recommend-card .arrow {
            color: var(--text-secondary);
            font-size: 14px;
            flex-shrink: 0;
            transition: transform var(--transition-fast), color var(--transition-fast);
        }

        .recommend-card:hover .arrow {
            color: var(--primary);
            transform: translateX(4px);
        }

        /* ===== 页脚 ===== */
        .footer {
            background: var(--bg-dark);
            color: rgba(249,250,251,0.7);
            padding: 48px 0 24px;
            font-size: 14px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 32px;
            margin-bottom: 32px;
        }

        .footer-brand {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 18px;
            font-weight: 700;
            color: var(--text-light);
            margin-bottom: 12px;
        }

        .footer-brand .logo-icon {
            width: 28px;
            height: 28px;
            font-size: 14px;
            border-radius: var(--radius-sm);
        }

        .footer-desc {
            font-size: 13px;
            line-height: 1.7;
            color: rgba(249,250,251,0.6);
            max-width: 320px;
            margin-bottom: 16px;
        }

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

        .footer-social-btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: rgba(249,250,251,0.08);
            color: rgba(249,250,251,0.8);
            font-size: 15px;
            text-decoration: none;
            transition: all var(--transition-fast);
        }

        .footer-social-btn:hover {
            background: var(--primary);
            color: #fff;
            text-decoration: none;
            transform: translateY(-2px);
        }

        .footer-col-title {
            display: block;
            font-size: 13px;
            font-weight: 600;
            color: var(--text-light);
            margin-bottom: 12px;
            letter-spacing: 0.3px;
        }

        .footer-col a {
            display: block;
            font-size: 13px;
            color: rgba(249,250,251,0.6);
            text-decoration: none;
            padding: 4px 0;
            transition: color var(--transition-fast);
        }

        .footer-col a:hover {
            color: var(--primary);
            text-decoration: none;
        }

        .footer-bottom {
            border-top: 1px solid rgba(249,250,251,0.1);
            padding-top: 16px;
            text-align: center;
            font-size: 12px;
            color: rgba(249,250,251,0.45);
        }

        /* ===== 响应式 ===== */
        @media (max-width: 1024px) {
            .category-header .container {
                grid-template-columns: 1fr;
                gap: 24px;
            }

            .category-header-image {
                justify-content: flex-start;
            }

            .category-header-image img {
                max-width: 100%;
            }

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

            .tutorial-steps {
                grid-template-columns: repeat(3, 1fr);
                gap: 14px;
            }

            .step-card {
                padding: 18px;
            }

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

        @media (max-width: 768px) {
            :root {
                --section-gap: 24px;
                --container-pad: 16px;
                --nav-height: 56px;
            }

            body {
                padding-top: var(--nav-height);
                font-size: 15px;
            }

            .navbar .container {
                gap: 10px;
            }

            .nav-menu {
                position: fixed;
                top: var(--nav-height);
                left: 0;
                right: 0;
                background: var(--bg-card);
                flex-direction: column;
                align-items: stretch;
                gap: 0;
                padding: 16px;
                border-bottom: 1px solid var(--border);
                display: none;
                box-shadow: var(--shadow-md);
                z-index: 999;
            }

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

            .nav-menu a {
                display: block;
                padding: 12px 16px;
                text-align: left;
                font-size: 15px;
            }

            .nav-menu a::after {
                display: none;
            }

            .nav-actions {
                gap: 6px;
            }

            .nav-search {
                display: none;
            }

            .nav-toggle {
                display: flex;
            }

            .btn-small {
                padding: 7px 12px;
                font-size: 12px;
            }

            .category-header {
                padding: 32px 0 20px;
            }

            .category-header h1 {
                font-size: 24px;
                line-height: 1.35;
            }

            .category-header-desc {
                font-size: 14px;
            }

            .category-stats {
                gap: 16px;
            }

            .stat-number {
                font-size: 17px;
            }

            .filter-bar {
                padding: 12px 16px;
                margin-top: -16px;
                gap: 10px;
            }

            .filter-bar .filter-left {
                gap: 8px;
                width: 100%;
            }

            .filter-tags {
                gap: 6px;
            }

            .filter-tag {
                padding: 5px 12px;
                font-size: 12px;
            }

            .filter-sort {
                width: 100%;
                gap: 6px;
            }

            .sort-btn {
                padding: 5px 12px;
                font-size: 12px;
            }

            .resource-section {
                padding: 24px 0;
            }

            .section-title {
                font-size: 19px;
            }

            .resource-item {
                padding: 14px;
                gap: 12px;
                flex-wrap: wrap;
            }

            .resource-icon {
                width: 40px;
                height: 40px;
                font-size: 18px;
            }

            .resource-info {
                flex: 1;
                min-width: calc(100% - 100px);
            }

            .resource-info .resource-name {
                font-size: 14px;
            }

            .resource-info .resource-meta {
                font-size: 12px;
                gap: 10px;
            }

            .btn-download {
                padding: 7px 14px;
                font-size: 12px;
                width: 100%;
                justify-content: center;
            }

            .pagination-section {
                padding: 12px 0 24px;
            }

            .page-btn {
                min-width: 34px;
                height: 34px;
                font-size: 13px;
                padding: 0 10px;
            }

            .topic-section {
                padding: 24px 0;
            }

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

            .topic-card .topic-image {
                height: 140px;
            }

            .tutorial-section {
                padding: 24px 0;
            }

            .tutorial-steps {
                grid-template-columns: 1fr;
                gap: 12px;
            }

            .step-card {
                padding: 16px;
                text-align: left;
                display: flex;
                gap: 14px;
                align-items: flex-start;
            }

            .step-number {
                width: 34px;
                height: 34px;
                font-size: 14px;
                margin-bottom: 0;
                flex-shrink: 0;
            }

            .step-card h3 {
                font-size: 15px;
            }

            .step-card p {
                font-size: 13px;
            }

            .security-section {
                padding: 24px 0;
            }

            .security-banner {
                flex-direction: column;
                text-align: center;
                padding: 20px;
                gap: 14px;
            }

            .security-icon {
                width: 48px;
                height: 48px;
                font-size: 28px;
            }

            .security-text h3 {
                font-size: 15px;
            }

            .security-text p {
                font-size: 13px;
            }

            .news-section {
                padding: 24px 0;
            }

            .news-list {
                grid-template-columns: 1fr;
                gap: 12px;
            }

            .news-item {
                padding: 12px;
                gap: 10px;
            }

            .news-item .news-thumb {
                width: 64px;
                height: 48px;
            }

            .news-item .news-title {
                font-size: 13px;
            }

            .recommend-section {
                padding: 24px 0;
            }

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

            .footer {
                padding: 32px 0 20px;
            }

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

        @media (max-width: 480px) {
            .category-header h1 {
                font-size: 21px;
            }

            .category-header-desc {
                font-size: 13px;
                line-height: 1.6;
            }

            .category-stats {
                gap: 12px;
                flex-wrap: wrap;
            }

            .stat-number {
                font-size: 15px;
            }

            .filter-tag {
                padding: 4px 10px;
                font-size: 11px;
            }

            .sort-btn {
                padding: 4px 10px;
                font-size: 11px;
            }

            .resource-item {
                flex-direction: column;
                align-items: flex-start;
            }

            .resource-info {
                min-width: 100%;
            }

            .btn-download {
                width: 100%;
            }

            .section-title {
                font-size: 17px;
            }

            .footer-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }

            .footer-bottom {
                font-size: 11px;
            }
        }

/* roulang page: category2 */
:root {
            --primary: #0E9F6E;
            --primary-dark: #0B8A5F;
            --primary-light: rgba(14,159,110,0.1);
            --primary-lighter: rgba(14,159,110,0.05);
            --accent: #FF7A00;
            --accent-dark: #EA580C;
            --accent-light: rgba(255,122,0,0.1);
            --bg: #F7F9FA;
            --bg-card: #FFFFFF;
            --bg-dark: #1F2937;
            --text-primary: #1F2937;
            --text-secondary: #6B7280;
            --text-light: #F9FAFB;
            --border: #E5E7EB;
            --border-light: #F3F4F6;
            --success: #16A34A;
            --danger: #EF4444;
            --radius-sm: 6px;
            --radius-md: 8px;
            --radius-lg: 10px;
            --radius-xl: 16px;
            --shadow-sm: 0 2px 8px rgba(31,41,55,0.06);
            --shadow-md: 0 4px 16px rgba(31,41,55,0.1);
            --shadow-lg: 0 8px 24px rgba(31,41,55,0.12);
            --shadow-hover: 0 8px 24px rgba(31,41,55,0.12);
            --font-cn: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
            --font-en: "Inter", "PingFang SC", "Microsoft YaHei", sans-serif;
            --container-max: 1200px;
            --container-pad: 24px;
            --section-gap: 60px;
            --section-gap-mobile: 40px;
            --nav-height: 64px;
            --transition-fast: 0.2s ease;
            --transition-base: 0.3s ease;
            --transition-slow: 0.5s ease;
            --focus-ring: 3px solid rgba(14,159,110,0.3);
            --focus-ring-accent: 3px solid rgba(255,122,0,0.3);
        }

        * {
            box-sizing: border-box;
        }

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

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

        img {
            max-width: 100%;
            height: auto;
            display: block;
            border: 0;
        }

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

        a:hover {
            color: var(--primary-dark);
            text-decoration: underline;
        }

        a:focus-visible,
        button:focus-visible,
        input:focus-visible,
        select:focus-visible {
            outline: var(--focus-ring);
            outline-offset: 2px;
        }

        button {
            font-family: var(--font-cn);
            cursor: pointer;
            border: none;
            background: none;
            font-size: inherit;
            line-height: inherit;
        }

        input,
        select {
            font-family: var(--font-cn);
            font-size: inherit;
        }

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

        h1,
        h2,
        h3,
        h4,
        p {
            margin: 0;
        }

        .container {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 var(--container-pad);
            width: 100%;
        }

        /* ===== 导航 ===== */
        .navbar {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            width: 100%;
            height: var(--nav-height);
            z-index: 1000;
            background: var(--bg-card);
            border-bottom: 1px solid var(--border);
            display: flex;
            align-items: center;
            transition: box-shadow var(--transition-base);
        }

        .navbar.scrolled {
            box-shadow: var(--shadow-sm);
        }

        .navbar .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            height: 100%;
        }

        .navbar .logo {
            display: flex;
            align-items: center;
            gap: 8px;
            flex-shrink: 0;
            font-size: 18px;
            font-weight: 700;
            color: var(--primary);
            text-decoration: none;
            letter-spacing: -0.3px;
            white-space: nowrap;
        }

        .navbar .logo:hover {
            color: var(--primary-dark);
            text-decoration: none;
        }

        .logo-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 32px;
            height: 32px;
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            border-radius: var(--radius-sm);
            color: #fff;
            font-size: 16px;
            flex-shrink: 0;
        }

        .nav-menu {
            display: flex;
            align-items: center;
            gap: 4px;
            flex: 1;
            justify-content: center;
        }

        .nav-menu a {
            display: inline-block;
            padding: 8px 14px;
            font-size: 14px;
            font-weight: 500;
            color: var(--text-primary);
            text-decoration: none;
            border-radius: var(--radius-md);
            position: relative;
            transition: color var(--transition-fast), background-color var(--transition-fast);
            white-space: nowrap;
        }

        .nav-menu a::after {
            content: '';
            position: absolute;
            left: 14px;
            right: 14px;
            bottom: 2px;
            height: 2px;
            background: var(--primary);
            border-radius: 2px;
            transform: scaleX(0);
            transform-origin: center;
            transition: transform var(--transition-fast);
        }

        .nav-menu a:hover {
            color: var(--primary);
            text-decoration: none;
        }

        .nav-menu a:hover::after,
        .nav-menu a.active::after {
            transform: scaleX(1);
        }

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

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

        .nav-search {
            display: flex;
            align-items: center;
            gap: 6px;
            background: var(--bg);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            padding: 6px 12px;
            transition: border-color var(--transition-fast);
        }

        .nav-search:focus-within {
            border-color: var(--primary);
        }

        .search-icon {
            font-size: 14px;
            opacity: 0.7;
        }

        .nav-search input {
            border: none;
            background: transparent;
            outline: none;
            font-size: 13px;
            width: 120px;
            color: var(--text-primary);
        }

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

        .btn-small {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: var(--accent);
            color: #fff;
            padding: 8px 16px;
            border-radius: var(--radius-md);
            font-size: 13px;
            font-weight: 600;
            text-decoration: none;
            white-space: nowrap;
            transition: background-color var(--transition-fast), transform var(--transition-fast);
        }

        .btn-small:hover {
            background: var(--accent-dark);
            color: #fff;
            text-decoration: none;
            transform: translateY(-1px);
        }

        .nav-toggle {
            display: none;
            flex-direction: column;
            gap: 4px;
            padding: 8px;
            border-radius: var(--radius-sm);
            transition: background-color var(--transition-fast);
        }

        .nav-toggle span {
            display: block;
            width: 22px;
            height: 2px;
            background: var(--text-primary);
            border-radius: 2px;
            transition: all var(--transition-fast);
        }

        .nav-toggle:hover {
            background: var(--bg);
        }

        /* ===== 分类 Header ===== */
        .category-header {
            background: linear-gradient(180deg, var(--primary-lighter) 0%, var(--bg) 100%);
            padding: 40px 0 32px;
            border-bottom: 1px solid var(--border-light);
        }

        .breadcrumb-cat {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            color: var(--text-secondary);
            margin-bottom: 16px;
        }

        .breadcrumb-cat a {
            color: var(--text-secondary);
            text-decoration: none;
            transition: color var(--transition-fast);
        }

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

        .breadcrumb-cat .sep {
            opacity: 0.5;
        }

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

        .category-header-main {
            display: flex;
            align-items: center;
            gap: 32px;
            flex-wrap: wrap;
        }

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

        .category-header-text h1 {
            font-size: 32px;
            font-weight: 700;
            line-height: 1.25;
            color: var(--text-primary);
            margin-bottom: 12px;
            letter-spacing: -0.5px;
        }

        .category-header-text h1 span {
            color: var(--primary);
        }

        .category-desc {
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.7;
            margin-bottom: 16px;
            max-width: 640px;
        }

        .category-stats {
            display: flex;
            align-items: center;
            gap: 24px;
            flex-wrap: wrap;
        }

        .stat-item-cat {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            color: var(--text-secondary);
        }

        .stat-item-cat strong {
            font-size: 20px;
            font-weight: 700;
            color: var(--primary);
            font-family: var(--font-en);
        }

        .category-header-image {
            width: 320px;
            height: 200px;
            border-radius: var(--radius-xl);
            overflow: hidden;
            flex-shrink: 0;
            box-shadow: var(--shadow-md);
        }

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

        /* ===== 筛选/排序操作条 ===== */
        .filter-bar-section {
            padding: 16px 0;
            background: var(--bg-card);
            border-bottom: 1px solid var(--border-light);
        }

        .filter-bar {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            flex-wrap: wrap;
        }

        .filter-sort-group {
            display: flex;
            align-items: center;
            gap: 8px;
            flex-wrap: wrap;
        }

        .filter-label {
            font-size: 13px;
            font-weight: 600;
            color: var(--text-secondary);
            margin-right: 4px;
        }

        .filter-btn {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            padding: 6px 14px;
            border-radius: 999px;
            font-size: 13px;
            font-weight: 500;
            color: var(--text-secondary);
            background: var(--bg);
            border: 1px solid var(--border);
            transition: all var(--transition-fast);
            white-space: nowrap;
        }

        .filter-btn:hover {
            color: var(--primary);
            border-color: var(--primary);
            background: var(--primary-light);
        }

        .filter-btn.active {
            color: #fff;
            background: var(--primary);
            border-color: var(--primary);
            font-weight: 600;
        }

        .filter-tag-group {
            display: flex;
            align-items: center;
            gap: 6px;
            flex-wrap: wrap;
        }

        .filter-tag {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            padding: 4px 12px;
            border-radius: 999px;
            font-size: 12px;
            color: var(--text-secondary);
            background: var(--bg);
            border: 1px solid var(--border-light);
            transition: all var(--transition-fast);
            white-space: nowrap;
        }

        .filter-tag:hover {
            color: var(--primary);
            border-color: var(--primary);
        }

        /* ===== 资源列表主体 ===== */
        .resource-list-section {
            padding: 32px 0 40px;
        }

        .resource-list-header {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            margin-bottom: 20px;
            flex-wrap: wrap;
        }

        .resource-list-title {
            font-size: 20px;
            font-weight: 700;
            color: var(--text-primary);
            letter-spacing: -0.3px;
        }

        .resource-list-count {
            font-size: 13px;
            color: var(--text-secondary);
        }

        .resource-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .resource-item {
            display: flex;
            align-items: center;
            gap: 16px;
            background: var(--bg-card);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: 16px 20px;
            transition: box-shadow var(--transition-base), transform var(--transition-base), border-color var(--transition-base);
        }

        .resource-item:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-2px);
            border-color: var(--primary-light);
        }

        .resource-rank {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 36px;
            height: 36px;
            background: var(--accent-light);
            color: var(--accent-dark);
            font-size: 15px;
            font-weight: 700;
            border-radius: 50%;
            flex-shrink: 0;
            font-family: var(--font-en);
        }

        .resource-icon {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 48px;
            height: 48px;
            background: var(--primary-lighter);
            border-radius: var(--radius-md);
            font-size: 24px;
            flex-shrink: 0;
        }

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

        .resource-info h3 {
            font-size: 16px;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 4px;
            line-height: 1.4;
        }

        .resource-info h3 a {
            color: var(--text-primary);
            text-decoration: none;
            transition: color var(--transition-fast);
        }

        .resource-info h3 a:hover {
            color: var(--primary);
        }

        .resource-desc {
            font-size: 13px;
            color: var(--text-secondary);
            line-height: 1.5;
            margin-bottom: 6px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .resource-meta {
            display: flex;
            align-items: center;
            gap: 16px;
            flex-wrap: wrap;
            font-size: 12px;
            color: var(--text-secondary);
        }

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

        .resource-meta .version-badge {
            color: var(--primary);
            font-weight: 600;
        }

        .resource-actions {
            display: flex;
            align-items: center;
            gap: 8px;
            flex-shrink: 0;
        }

        .btn-download {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: var(--accent);
            color: #fff;
            padding: 8px 16px;
            border-radius: var(--radius-md);
            font-size: 13px;
            font-weight: 600;
            text-decoration: none;
            white-space: nowrap;
            transition: background-color var(--transition-fast), transform var(--transition-fast);
        }

        .btn-download:hover {
            background: var(--accent-dark);
            color: #fff;
            text-decoration: none;
            transform: translateY(-1px);
        }

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

        /* ===== 分页 ===== */
        .pagination-section {
            padding: 12px 0 32px;
            display: flex;
            justify-content: center;
        }

        .pagination {
            display: flex;
            align-items: center;
            gap: 6px;
        }

        .page-btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            min-width: 36px;
            height: 36px;
            padding: 0 10px;
            border-radius: var(--radius-md);
            font-size: 13px;
            font-weight: 500;
            color: var(--text-secondary);
            background: var(--bg-card);
            border: 1px solid var(--border);
            transition: all var(--transition-fast);
            text-decoration: none;
        }

        .page-btn:hover {
            color: var(--primary);
            border-color: var(--primary);
            text-decoration: none;
        }

        .page-btn.active {
            background: var(--primary);
            color: #fff;
            border-color: var(--primary);
            font-weight: 600;
        }

        .page-btn.disabled {
            opacity: 0.5;
            pointer-events: none;
        }

        /* ===== 标签/专题推荐 ===== */
        .tag-topic-section {
            padding: 32px 0;
            background: var(--bg-card);
            border-top: 1px solid var(--border-light);
            border-bottom: 1px solid var(--border-light);
        }

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

        .tag-topic-col h2 {
            font-size: 18px;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 14px;
        }

        .tag-cloud-cat {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
        }

        .tag-cloud-cat a {
            display: inline-flex;
            align-items: center;
            padding: 6px 14px;
            border-radius: 999px;
            font-size: 13px;
            color: var(--text-secondary);
            background: var(--bg);
            border: 1px solid var(--border);
            text-decoration: none;
            transition: all var(--transition-fast);
        }

        .tag-cloud-cat a:hover {
            color: var(--primary);
            border-color: var(--primary);
            background: var(--primary-light);
            text-decoration: none;
        }

        .topic-cards-cat {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 12px;
        }

        .topic-card-cat {
            display: flex;
            align-items: center;
            gap: 10px;
            background: var(--bg);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-md);
            padding: 12px 16px;
            text-decoration: none;
            transition: all var(--transition-fast);
        }

        .topic-card-cat:hover {
            box-shadow: var(--shadow-sm);
            border-color: var(--primary-light);
            text-decoration: none;
        }

        .topic-card-cat .topic-icon {
            font-size: 20px;
        }

        .topic-card-cat .topic-name {
            font-size: 14px;
            font-weight: 600;
            color: var(--text-primary);
            line-height: 1.3;
        }

        .topic-card-cat .topic-count {
            font-size: 12px;
            color: var(--text-secondary);
        }

        /* ===== 下载教程 ===== */
        .guide-section {
            padding: 40px 0;
        }

        .section-title {
            font-size: 22px;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 6px;
            letter-spacing: -0.3px;
        }

        .section-subtitle {
            font-size: 14px;
            color: var(--text-secondary);
            margin-bottom: 24px;
        }

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

        .step-card {
            background: var(--bg-card);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: 24px;
            transition: box-shadow var(--transition-base), transform var(--transition-base);
        }

        .step-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-2px);
        }

        .step-number {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 32px;
            height: 32px;
            background: var(--primary);
            color: #fff;
            font-size: 14px;
            font-weight: 700;
            border-radius: 50%;
            margin-bottom: 12px;
            font-family: var(--font-en);
        }

        .step-card h3 {
            font-size: 16px;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 8px;
        }

        .step-card p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.6;
        }

        /* ===== 安全提示 ===== */
        .safety-section {
            padding: 32px 0;
            background: var(--bg-card);
            border-top: 1px solid var(--border-light);
            border-bottom: 1px solid var(--border-light);
        }

        .safety-content {
            display: flex;
            align-items: center;
            gap: 24px;
            flex-wrap: wrap;
        }

        .safety-badge {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 80px;
            height: 80px;
            background: var(--primary-lighter);
            border-radius: 50%;
            font-size: 36px;
            flex-shrink: 0;
        }

        .safety-text {
            flex: 1;
            min-width: 260px;
        }

        .safety-text h2 {
            font-size: 20px;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 8px;
        }

        .safety-text p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
        }

        .safety-points {
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
            margin-top: 12px;
        }

        .safety-point {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 13px;
            color: var(--success);
            font-weight: 500;
        }

        /* ===== 推荐栏目入口 ===== */
        .recommend-cat-section {
            padding: 40px 0;
        }

        .recommend-cat-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 16px;
        }

        .recommend-cat-card {
            display: flex;
            align-items: center;
            gap: 14px;
            background: var(--bg-card);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: 20px;
            text-decoration: none;
            transition: box-shadow var(--transition-base), transform var(--transition-base);
        }

        .recommend-cat-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-2px);
            text-decoration: none;
        }

        .recommend-cat-card .rec-icon {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 52px;
            height: 52px;
            background: var(--primary-lighter);
            border-radius: var(--radius-md);
            font-size: 26px;
            flex-shrink: 0;
        }

        .recommend-cat-card .rec-info h3 {
            font-size: 15px;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 4px;
        }

        .recommend-cat-card .rec-info p {
            font-size: 13px;
            color: var(--text-secondary);
            line-height: 1.5;
        }

        /* ===== CMS 资讯列表 ===== */
        .cms-list-section {
            padding: 40px 0;
            background: var(--bg-card);
            border-top: 1px solid var(--border-light);
        }

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

        .cms-card {
            background: var(--bg);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            overflow: hidden;
            transition: box-shadow var(--transition-base), transform var(--transition-base);
        }

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

        .cms-card-thumb {
            height: 160px;
            overflow: hidden;
        }

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

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

        .cms-card-cat {
            display: inline-block;
            font-size: 11px;
            font-weight: 600;
            color: var(--primary);
            background: var(--primary-light);
            padding: 3px 10px;
            border-radius: 999px;
            margin-bottom: 8px;
        }

        .cms-card-body h3 {
            font-size: 15px;
            font-weight: 600;
            line-height: 1.5;
            margin-bottom: 8px;
        }

        .cms-card-body h3 a {
            color: var(--text-primary);
            text-decoration: none;
            transition: color var(--transition-fast);
        }

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

        .cms-card-summary {
            font-size: 13px;
            color: var(--text-secondary);
            line-height: 1.6;
            margin-bottom: 10px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .cms-card-time {
            font-size: 12px;
            color: var(--text-secondary);
        }

        .cms-empty {
            text-align: center;
            padding: 40px 20px;
            color: var(--text-secondary);
            font-size: 14px;
            background: var(--bg);
            border-radius: var(--radius-lg);
        }

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

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 32px;
            margin-bottom: 32px;
        }

        .footer-brand {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 18px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 12px;
        }

        .footer-brand .logo-icon {
            background: var(--primary);
        }

        .footer-desc {
            font-size: 13px;
            color: #9CA3AF;
            line-height: 1.7;
            margin-bottom: 16px;
            max-width: 320px;
        }

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

        .footer-social-btn {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 36px;
            height: 36px;
            background: rgba(255,255,255,0.08);
            border-radius: 50%;
            font-size: 16px;
            color: #D1D5DB;
            text-decoration: none;
            transition: background-color var(--transition-fast), color var(--transition-fast);
        }

        .footer-social-btn:hover {
            background: var(--primary);
            color: #fff;
            text-decoration: none;
        }

        .footer-col {
            display: flex;
            flex-direction: column;
            gap: 8px;
        }

        .footer-col-title {
            font-size: 14px;
            font-weight: 600;
            color: #fff;
            margin-bottom: 8px;
        }

        .footer-col a {
            font-size: 13px;
            color: #9CA3AF;
            text-decoration: none;
            transition: color var(--transition-fast);
        }

        .footer-col a:hover {
            color: var(--primary);
            text-decoration: none;
        }

        .footer-bottom {
            border-top: 1px solid rgba(255,255,255,0.1);
            padding-top: 20px;
            text-align: center;
            font-size: 12px;
            color: #6B7280;
        }

        /* ===== 响应式 ===== */
        @media (max-width: 1024px) {
            .category-header-image {
                width: 260px;
                height: 170px;
            }
            .steps-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .cms-list-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .footer-grid {
                grid-template-columns: 2fr 1fr 1fr;
            }
        }

        @media (max-width: 768px) {
            :root {
                --section-gap: 40px;
                --container-pad: 16px;
                --nav-height: 56px;
            }

            .nav-menu {
                position: fixed;
                top: var(--nav-height);
                left: 0;
                right: 0;
                background: var(--bg-card);
                flex-direction: column;
                align-items: stretch;
                gap: 0;
                padding: 12px 16px;
                border-bottom: 1px solid var(--border);
                box-shadow: var(--shadow-md);
                display: none;
                z-index: 999;
            }

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

            .nav-menu a {
                padding: 12px 16px;
                font-size: 15px;
                border-radius: var(--radius-md);
            }

            .nav-menu a::after {
                display: none;
            }

            .nav-menu a.active {
                background: var(--primary-light);
            }

            .nav-toggle {
                display: flex;
            }

            .nav-search {
                display: none;
            }

            .category-header-main {
                flex-direction: column;
                align-items: flex-start;
                gap: 16px;
            }

            .category-header-image {
                width: 100%;
                height: 180px;
            }

            .category-header-text h1 {
                font-size: 24px;
            }

            .resource-item {
                flex-direction: column;
                align-items: flex-start;
                gap: 12px;
                padding: 16px;
            }

            .resource-rank {
                width: 30px;
                height: 30px;
                font-size: 13px;
            }

            .resource-icon {
                width: 40px;
                height: 40px;
                font-size: 20px;
            }

            .resource-actions {
                width: 100%;
                justify-content: flex-end;
            }

            .tag-topic-grid {
                grid-template-columns: 1fr;
            }

            .topic-cards-cat {
                grid-template-columns: 1fr;
            }

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

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

            .recommend-cat-grid {
                grid-template-columns: 1fr;
            }

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

            .filter-bar {
                flex-direction: column;
                align-items: flex-start;
            }

            .resource-list-title {
                font-size: 18px;
            }

            .section-title {
                font-size: 20px;
            }

            .category-stats {
                gap: 16px;
            }

            .stat-item-cat strong {
                font-size: 18px;
            }
        }

        @media (max-width: 480px) {
            .category-header-text h1 {
                font-size: 22px;
            }

            .resource-meta {
                gap: 10px;
                font-size: 11px;
            }

            .btn-download {
                padding: 8px 14px;
                font-size: 12px;
            }

            .safety-badge {
                width: 60px;
                height: 60px;
                font-size: 28px;
            }

            .safety-text h2 {
                font-size: 18px;
            }

            .footer-bottom {
                font-size: 11px;
            }
        }

/* roulang page: category3 */
:root {
            --primary: #0E9F6E;
            --primary-dark: #0B8A5F;
            --primary-light: rgba(14,159,110,0.1);
            --primary-lighter: rgba(14,159,110,0.05);
            --accent: #FF7A00;
            --accent-dark: #EA580C;
            --accent-light: rgba(255,122,0,0.1);
            --bg: #F7F9FA;
            --bg-card: #FFFFFF;
            --bg-dark: #1F2937;
            --text-primary: #1F2937;
            --text-secondary: #6B7280;
            --text-light: #F9FAFB;
            --border: #E5E7EB;
            --border-light: #F3F4F6;
            --success: #16A34A;
            --danger: #EF4444;
            --radius-sm: 6px;
            --radius-md: 8px;
            --radius-lg: 10px;
            --radius-xl: 16px;
            --shadow-sm: 0 2px 8px rgba(31,41,55,0.06);
            --shadow-md: 0 4px 16px rgba(31,41,55,0.1);
            --shadow-lg: 0 8px 24px rgba(31,41,55,0.12);
            --shadow-hover: 0 8px 24px rgba(31,41,55,0.12);
            --font-cn: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
            --font-en: "Inter", "PingFang SC", "Microsoft YaHei", sans-serif;
            --container-max: 1200px;
            --container-pad: 24px;
            --section-gap: 80px;
            --section-gap-mobile: 40px;
            --nav-height: 64px;
            --transition-fast: 0.2s ease;
            --transition-base: 0.3s ease;
            --transition-slow: 0.5s ease;
            --focus-ring: 3px solid rgba(14,159,110,0.3);
            --focus-ring-accent: 3px solid rgba(255,122,0,0.3);
        }

        *,
        *::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-cn);
            font-size: 16px;
            line-height: 1.7;
            color: var(--text-primary);
            background-color: var(--bg);
            padding-top: var(--nav-height);
            overflow-x: hidden;
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
            border: 0;
        }

        ul,
        ol {
            list-style: none;
        }

        a {
            color: var(--primary);
            text-decoration: none;
            transition: color var(--transition-fast);
        }
        a:hover {
            color: var(--primary-dark);
            text-decoration: underline;
        }
        a:focus-visible,
        button:focus-visible,
        input:focus-visible {
            outline: var(--focus-ring);
            outline-offset: 2px;
        }

        button {
            font-family: var(--font-cn);
            cursor: pointer;
            border: none;
            background: none;
            font-size: inherit;
            line-height: inherit;
        }

        input {
            font-family: var(--font-cn);
            font-size: inherit;
        }

        .container {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 var(--container-pad);
            width: 100%;
        }

        /* ===== 导航 ===== */
        .navbar {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            width: 100%;
            height: var(--nav-height);
            z-index: 1000;
            background: var(--bg-card);
            border-bottom: 1px solid var(--border);
            display: flex;
            align-items: center;
            transition: box-shadow var(--transition-base);
        }
        .navbar.scrolled {
            box-shadow: var(--shadow-sm);
        }
        .navbar .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            height: 100%;
        }
        .navbar .logo {
            display: flex;
            align-items: center;
            gap: 8px;
            flex-shrink: 0;
            font-size: 18px;
            font-weight: 700;
            color: var(--primary);
            text-decoration: none;
            letter-spacing: -0.3px;
            white-space: nowrap;
        }
        .navbar .logo:hover {
            color: var(--primary-dark);
            text-decoration: none;
        }
        .logo-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 32px;
            height: 32px;
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            border-radius: var(--radius-sm);
            color: #fff;
            font-size: 16px;
            flex-shrink: 0;
        }
        .nav-menu {
            display: flex;
            align-items: center;
            gap: 4px;
            flex: 1;
            justify-content: center;
        }
        .nav-menu a {
            display: inline-block;
            padding: 8px 14px;
            font-size: 14px;
            font-weight: 500;
            color: var(--text-primary);
            text-decoration: none;
            border-radius: var(--radius-md);
            position: relative;
            transition: color var(--transition-fast), background-color var(--transition-fast);
            white-space: nowrap;
        }
        .nav-menu a::after {
            content: '';
            position: absolute;
            left: 14px;
            right: 14px;
            bottom: 4px;
            height: 2px;
            background: var(--primary);
            border-radius: 1px;
            transform: scaleX(0);
            transform-origin: left center;
            transition: transform var(--transition-base);
        }
        .nav-menu a:hover {
            color: var(--primary);
            text-decoration: none;
        }
        .nav-menu a:hover::after,
        .nav-menu a.active::after {
            transform: scaleX(1);
        }
        .nav-menu a.active {
            color: var(--primary);
            font-weight: 600;
        }
        .nav-actions {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }
        .nav-search {
            display: flex;
            align-items: center;
            gap: 6px;
            background: var(--bg);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            padding: 6px 12px;
            transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
        }
        .nav-search:focus-within {
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(14,159,110,0.15);
        }
        .nav-search input {
            border: none;
            background: transparent;
            font-size: 13px;
            color: var(--text-primary);
            width: 130px;
            outline: none;
        }
        .search-icon {
            font-size: 14px;
            opacity: 0.6;
        }
        .btn-small {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            background: var(--accent);
            color: #fff;
            font-size: 14px;
            font-weight: 600;
            padding: 8px 16px;
            border-radius: var(--radius-md);
            text-decoration: none;
            transition: background-color var(--transition-fast), box-shadow var(--transition-fast);
            white-space: nowrap;
        }
        .btn-small:hover {
            background: var(--accent-dark);
            color: #fff;
            text-decoration: none;
            box-shadow: var(--shadow-sm);
        }
        .nav-toggle {
            display: none;
            flex-direction: column;
            gap: 5px;
            padding: 8px;
            border-radius: var(--radius-sm);
            background: none;
        }
        .nav-toggle span {
            display: block;
            width: 22px;
            height: 2px;
            background: var(--text-primary);
            border-radius: 1px;
            transition: transform var(--transition-fast), opacity var(--transition-fast);
        }

        /* ===== 面包屑 ===== */
        .breadcrumb-section {
            padding: 24px 0 0;
            background: var(--bg);
        }
        .breadcrumb-nav {
            font-size: 13px;
            color: var(--text-secondary);
            display: flex;
            align-items: center;
            gap: 6px;
            flex-wrap: wrap;
        }
        .breadcrumb-nav a {
            color: var(--text-secondary);
            text-decoration: none;
            transition: color var(--transition-fast);
        }
        .breadcrumb-nav a:hover {
            color: var(--primary);
        }
        .breadcrumb-nav .sep {
            color: var(--border);
            user-select: none;
        }
        .breadcrumb-nav .current {
            color: var(--primary);
            font-weight: 600;
        }

        /* ===== 分类 Header ===== */
        .category-header {
            padding: 32px 0 20px;
            background: var(--bg);
        }
        .category-header-inner {
            display: flex;
            align-items: center;
            gap: 40px;
            flex-wrap: wrap;
        }
        .category-header-text {
            flex: 1;
            min-width: 300px;
        }
        .category-header-text h1 {
            font-size: 34px;
            font-weight: 700;
            line-height: 1.25;
            margin-bottom: 12px;
            color: var(--text-primary);
        }
        .category-header-text h1 span {
            color: var(--primary);
        }
        .category-header-desc {
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.8;
            max-width: 620px;
        }
        .category-header-stats {
            display: flex;
            gap: 32px;
            flex-shrink: 0;
            flex-wrap: wrap;
        }
        .header-stat {
            text-align: left;
        }
        .header-stat-number {
            font-size: 28px;
            font-weight: 700;
            color: var(--primary);
            line-height: 1.1;
            font-family: var(--font-en);
        }
        .header-stat-label {
            font-size: 13px;
            color: var(--text-secondary);
            margin-top: 4px;
        }
        .category-header-cover {
            width: 260px;
            height: 160px;
            border-radius: var(--radius-xl);
            overflow: hidden;
            flex-shrink: 0;
            box-shadow: var(--shadow-md);
        }
        .category-header-cover img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        /* ===== 筛选操作条 ===== */
        .filter-bar-section {
            padding: 0 0 24px;
            background: var(--bg);
        }
        .filter-bar {
            display: flex;
            align-items: center;
            gap: 16px;
            flex-wrap: wrap;
            padding: 16px 20px;
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            border: 1px solid var(--border);
            box-shadow: var(--shadow-sm);
        }
        .filter-label {
            font-size: 13px;
            font-weight: 600;
            color: var(--text-secondary);
            white-space: nowrap;
        }
        .filter-sorts {
            display: flex;
            gap: 6px;
            flex-wrap: wrap;
        }
        .filter-sort-btn {
            padding: 6px 14px;
            font-size: 13px;
            border-radius: 999px;
            border: 1px solid var(--border);
            color: var(--text-secondary);
            background: var(--bg-card);
            transition: all var(--transition-fast);
            white-space: nowrap;
        }
        .filter-sort-btn:hover {
            border-color: var(--primary);
            color: var(--primary);
        }
        .filter-sort-btn.active {
            background: var(--primary);
            border-color: var(--primary);
            color: #fff;
            font-weight: 600;
        }
        .filter-tags {
            display: flex;
            gap: 6px;
            flex-wrap: wrap;
        }
        .filter-tag-btn {
            padding: 5px 12px;
            font-size: 12px;
            border-radius: 999px;
            border: 1px solid var(--border-light);
            color: var(--text-secondary);
            background: var(--bg);
            transition: all var(--transition-fast);
            white-space: nowrap;
        }
        .filter-tag-btn:hover {
            border-color: var(--primary);
            color: var(--primary);
            background: var(--primary-lighter);
        }
        .filter-tag-btn.active {
            background: var(--primary-light);
            border-color: var(--primary);
            color: var(--primary);
            font-weight: 600;
        }

        /* ===== 资源列表主体 ===== */
        .resource-list-section {
            padding: 0 0 var(--section-gap);
            background: var(--bg);
        }
        .resource-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .resource-item {
            display: flex;
            align-items: center;
            gap: 16px;
            padding: 16px 20px;
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            border: 1px solid var(--border);
            box-shadow: var(--shadow-sm);
            transition: all var(--transition-base);
        }
        .resource-item:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-2px);
            border-color: var(--border);
        }
        .resource-icon {
            width: 44px;
            height: 44px;
            border-radius: var(--radius-md);
            background: var(--primary-lighter);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 22px;
            flex-shrink: 0;
        }
        .resource-info {
            flex: 1;
            min-width: 0;
        }
        .resource-title {
            font-size: 15px;
            font-weight: 600;
            color: var(--text-primary);
            text-decoration: none;
            display: inline-block;
            transition: color var(--transition-fast);
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
            max-width: 100%;
        }
        .resource-title:hover {
            color: var(--primary);
            text-decoration: none;
        }
        .resource-meta {
            font-size: 12px;
            color: var(--text-secondary);
            display: flex;
            gap: 12px;
            margin-top: 4px;
            flex-wrap: wrap;
        }
        .resource-meta .version {
            font-family: var(--font-en);
        }
        .resource-download {
            flex-shrink: 0;
            display: inline-flex;
            align-items: center;
            gap: 4px;
            padding: 8px 16px;
            background: var(--accent);
            color: #fff;
            font-size: 13px;
            font-weight: 600;
            border-radius: var(--radius-md);
            text-decoration: none;
            transition: all var(--transition-fast);
            white-space: nowrap;
        }
        .resource-download:hover {
            background: var(--accent-dark);
            color: #fff;
            text-decoration: none;
            box-shadow: 0 4px 12px rgba(255,122,0,0.35);
        }
        .pagination-bar {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            margin-top: 28px;
            flex-wrap: wrap;
        }
        .page-btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 8px 16px;
            border-radius: var(--radius-md);
            border: 1px solid var(--border);
            background: var(--bg-card);
            font-size: 14px;
            color: var(--text-secondary);
            transition: all var(--transition-fast);
            min-width: 40px;
        }
        .page-btn:hover {
            border-color: var(--primary);
            color: var(--primary);
        }
        .page-btn.active {
            background: var(--primary);
            border-color: var(--primary);
            color: #fff;
            font-weight: 600;
        }
        .page-btn.load-more {
            background: var(--accent);
            border-color: var(--accent);
            color: #fff;
            font-weight: 600;
            padding: 8px 24px;
        }
        .page-btn.load-more:hover {
            background: var(--accent-dark);
            border-color: var(--accent-dark);
            color: #fff;
        }

        /* ===== 板块通用 ===== */
        .section {
            padding: var(--section-gap) 0;
        }
        .section-alt {
            background: var(--bg-card);
        }
        .section-header {
            text-align: center;
            margin-bottom: 36px;
        }
        .section-header h2 {
            font-size: 26px;
            font-weight: 700;
            color: var(--text-primary);
            line-height: 1.3;
            margin-bottom: 8px;
        }
        .section-header p {
            font-size: 15px;
            color: var(--text-secondary);
            max-width: 560px;
            margin: 0 auto;
            line-height: 1.7;
        }

        /* ===== 卖点卡片 ===== */
        .benefit-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }
        .benefit-card {
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            padding: 24px;
            border: 1px solid var(--border);
            box-shadow: var(--shadow-sm);
            transition: all var(--transition-base);
            text-align: center;
        }
        .benefit-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-2px);
        }
        .benefit-icon {
            width: 52px;
            height: 52px;
            border-radius: 50%;
            background: var(--primary-light);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 24px;
            margin: 0 auto 14px;
        }
        .benefit-card h3 {
            font-size: 17px;
            font-weight: 700;
            margin-bottom: 8px;
            color: var(--text-primary);
        }
        .benefit-card p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
        }

        /* ===== 专题推荐 ===== */
        .topic-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 16px;
        }
        .topic-card {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 16px 20px;
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            border: 1px solid var(--border);
            box-shadow: var(--shadow-sm);
            text-decoration: none;
            transition: all var(--transition-base);
        }
        .topic-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-2px);
            text-decoration: none;
            border-color: var(--primary-light);
        }
        .topic-card-icon {
            width: 40px;
            height: 40px;
            border-radius: var(--radius-sm);
            background: var(--accent-light);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            flex-shrink: 0;
        }
        .topic-card-info h4 {
            font-size: 15px;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 2px;
        }
        .topic-card-info span {
            font-size: 12px;
            color: var(--text-secondary);
        }

        /* ===== 下载教程 ===== */
        .steps-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }
        .step-card {
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            padding: 24px;
            border: 1px solid var(--border);
            box-shadow: var(--shadow-sm);
            text-align: center;
            position: relative;
        }
        .step-number {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: var(--accent);
            color: #fff;
            font-weight: 700;
            font-size: 16px;
            margin-bottom: 12px;
        }
        .step-card h3 {
            font-size: 16px;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 8px;
        }
        .step-card p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
        }
        .step-card .step-image {
            margin-top: 14px;
            height: 120px;
            border-radius: var(--radius-md);
            overflow: hidden;
            background: var(--bg);
        }
        .step-card .step-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        /* ===== 安全提示 ===== */
        .security-banner {
            display: flex;
            align-items: center;
            gap: 20px;
            padding: 28px 32px;
            background: var(--primary-lighter);
            border-radius: var(--radius-xl);
            border: 1px solid rgba(14,159,110,0.2);
        }
        .security-icon {
            font-size: 40px;
            flex-shrink: 0;
        }
        .security-content h3 {
            font-size: 18px;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 6px;
        }
        .security-content p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
        }
        .security-badge {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            padding: 4px 12px;
            border-radius: 999px;
            background: var(--success);
            color: #fff;
            font-size: 12px;
            font-weight: 600;
            margin-left: auto;
            flex-shrink: 0;
            white-space: nowrap;
        }

        /* ===== 推荐栏目 ===== */
        .recommend-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 16px;
        }
        .recommend-card {
            display: flex;
            align-items: center;
            gap: 14px;
            padding: 20px 24px;
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            border: 1px solid var(--border);
            box-shadow: var(--shadow-sm);
            text-decoration: none;
            transition: all var(--transition-base);
        }
        .recommend-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-2px);
            text-decoration: none;
            border-color: var(--primary-light);
        }
        .recommend-card-icon {
            width: 46px;
            height: 46px;
            border-radius: var(--radius-md);
            background: var(--primary-light);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 22px;
            flex-shrink: 0;
        }
        .recommend-card-info h4 {
            font-size: 15px;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 2px;
        }
        .recommend-card-info p {
            font-size: 13px;
            color: var(--text-secondary);
        }
        .recommend-card-arrow {
            margin-left: auto;
            font-size: 18px;
            color: var(--text-secondary);
            flex-shrink: 0;
        }

        /* ===== FAQ ===== */
        .faq-list {
            max-width: 760px;
            margin: 0 auto;
        }
        .faq-item {
            border-bottom: 1px solid var(--border);
        }
        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            padding: 18px 4px;
            font-size: 15px;
            font-weight: 600;
            color: var(--text-primary);
            cursor: pointer;
            text-align: left;
            width: 100%;
            transition: color var(--transition-fast);
        }
        .faq-question:hover {
            color: var(--primary);
        }
        .faq-icon {
            font-size: 18px;
            color: var(--text-secondary);
            flex-shrink: 0;
            transition: transform var(--transition-base);
        }
        .faq-item.open .faq-icon {
            transform: rotate(45deg);
            color: var(--primary);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height var(--transition-slow);
        }
        .faq-item.open .faq-answer {
            max-height: 300px;
        }
        .faq-answer-inner {
            padding: 0 4px 18px;
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.8;
            background: var(--bg);
            border-radius: var(--radius-md);
            padding: 16px 18px;
            margin-bottom: 12px;
        }

        /* ===== CTA ===== */
        .cta-section {
            padding: var(--section-gap) 0;
            background: var(--bg-dark);
        }
        .cta-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 24px;
            flex-wrap: wrap;
        }
        .cta-text h2 {
            font-size: 24px;
            font-weight: 700;
            color: var(--text-light);
            margin-bottom: 6px;
        }
        .cta-text p {
            font-size: 14px;
            color: rgba(249,250,251,0.7);
        }
        .cta-actions {
            display: flex;
            gap: 12px;
            flex-shrink: 0;
        }
        .btn-primary {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 12px 24px;
            background: var(--accent);
            color: #fff;
            font-size: 14px;
            font-weight: 600;
            border-radius: var(--radius-md);
            text-decoration: none;
            transition: all var(--transition-fast);
        }
        .btn-primary:hover {
            background: var(--accent-dark);
            color: #fff;
            text-decoration: none;
            box-shadow: 0 4px 16px rgba(255,122,0,0.4);
        }
        .btn-secondary {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 12px 24px;
            background: transparent;
            color: var(--text-light);
            font-size: 14px;
            font-weight: 600;
            border-radius: var(--radius-md);
            text-decoration: none;
            border: 1px solid rgba(249,250,251,0.4);
            transition: all var(--transition-fast);
        }
        .btn-secondary:hover {
            background: rgba(249,250,251,0.1);
            color: var(--text-light);
            text-decoration: none;
            border-color: rgba(249,250,251,0.6);
        }

        /* ===== 页脚 ===== */
        .footer {
            background: var(--bg-dark);
            padding: 48px 0 24px;
            color: rgba(249,250,251,0.7);
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 32px;
            margin-bottom: 32px;
        }
        .footer-brand {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 17px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 12px;
        }
        .footer-desc {
            font-size: 13px;
            line-height: 1.7;
            margin-bottom: 16px;
            max-width: 280px;
        }
        .footer-social {
            display: flex;
            gap: 8px;
        }
        .footer-social-btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: rgba(255,255,255,0.08);
            font-size: 16px;
            transition: background-color var(--transition-fast);
            text-decoration: none;
        }
        .footer-social-btn:hover {
            background: rgba(255,255,255,0.16);
            text-decoration: none;
        }
        .footer-col-title {
            font-size: 14px;
            font-weight: 700;
            color: #fff;
            display: inline-block;
            margin-bottom: 12px;
        }
        .footer-col a {
            display: block;
            font-size: 13px;
            color: rgba(249,250,251,0.7);
            text-decoration: none;
            padding: 4px 0;
            transition: color var(--transition-fast);
        }
        .footer-col a:hover {
            color: #fff;
            text-decoration: none;
        }
        .footer-bottom {
            border-top: 1px solid rgba(249,250,251,0.1);
            padding-top: 16px;
            text-align: center;
            font-size: 12px;
            color: rgba(249,250,251,0.5);
        }

        /* ===== 空态提示 ===== */
        .empty-state {
            text-align: center;
            padding: 40px 20px;
            color: var(--text-secondary);
            font-size: 14px;
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            border: 1px dashed var(--border);
        }

        /* ===== 响应式 ===== */
        @media (max-width: 1024px) {
            .benefit-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .topic-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .steps-grid {
                grid-template-columns: repeat(3, 1fr);
                gap: 12px;
            }
            .category-header-cover {
                width: 200px;
                height: 130px;
            }
            .category-header-text h1 {
                font-size: 28px;
            }
        }

        @media (max-width: 768px) {
            :root {
                --section-gap: 40px;
                --container-pad: 16px;
                --nav-height: 56px;
            }
            .nav-menu {
                position: fixed;
                top: var(--nav-height);
                left: 0;
                right: 0;
                background: var(--bg-card);
                flex-direction: column;
                align-items: stretch;
                gap: 0;
                padding: 12px 16px;
                border-bottom: 1px solid var(--border);
                box-shadow: var(--shadow-md);
                display: none;
                z-index: 999;
            }
            .nav-menu.open {
                display: flex;
            }
            .nav-menu a {
                padding: 12px 8px;
                font-size: 15px;
                border-bottom: 1px solid var(--border-light);
            }
            .nav-menu a:last-child {
                border-bottom: none;
            }
            .nav-toggle {
                display: flex;
            }
            .nav-search {
                display: none;
            }
            .category-header-inner {
                flex-direction: column;
                gap: 20px;
            }
            .category-header-cover {
                width: 100%;
                height: 180px;
                order: 2;
            }
            .category-header-text {
                order: 1;
            }
            .category-header-stats {
                gap: 20px;
            }
            .header-stat-number {
                font-size: 22px;
            }
            .benefit-grid {
                grid-template-columns: 1fr;
            }
            .topic-grid {
                grid-template-columns: 1fr;
            }
            .steps-grid {
                grid-template-columns: 1fr;
            }
            .security-banner {
                flex-direction: column;
                text-align: center;
                padding: 20px;
            }
            .security-badge {
                margin-left: 0;
            }
            .recommend-grid {
                grid-template-columns: 1fr;
            }
            .cta-inner {
                flex-direction: column;
                text-align: center;
            }
            .cta-actions {
                flex-direction: column;
                width: 100%;
            }
            .btn-primary,
            .btn-secondary {
                width: 100%;
                justify-content: center;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 20px;
            }
            .footer-col:first-child {
                grid-column: 1 / -1;
            }
            .resource-item {
                flex-wrap: wrap;
                gap: 10px;
            }
            .resource-info {
                flex: 1 1 60%;
                min-width: 0;
            }
            .resource-download {
                margin-left: auto;
            }
            .filter-bar {
                flex-direction: column;
                align-items: flex-start;
                gap: 10px;
            }
            .section-header h2 {
                font-size: 22px;
            }
        }

        @media (max-width: 480px) {
            body {
                font-size: 14px;
            }
            .category-header-text h1 {
                font-size: 24px;
            }
            .header-stat-number {
                font-size: 20px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
            }
            .resource-item {
                flex-direction: column;
                align-items: flex-start;
            }
            .resource-download {
                margin-left: 0;
                width: 100%;
                justify-content: center;
            }
            .btn-small {
                padding: 6px 12px;
                font-size: 12px;
            }
            .filter-sorts,
            .filter-tags {
                width: 100%;
            }
        }