/* roulang page: index */
:root {
            --brand-primary: #1e56a0;
            --brand-primary-light: #2e75d3;
            --brand-primary-dark: #133b6f;
            --brand-secondary: #00b4d8;
            --brand-accent: #ff9f1c;
            --text-main: #1d2d44;
            --text-muted: #5e6d82;
            --bg-light: #f6f9fc;
            --bg-white: #ffffff;
            --bg-card: #ffffff;
            --border-color: #e2e8f0;
            --card-shadow: 0 10px 25px -5px rgba(15, 23, 42, 0.08), 0 8px 10px -6px rgba(15, 23, 42, 0.04);
            --hover-shadow: 0 20px 30px -10px rgba(30, 86, 160, 0.15);
            --radius-sm: 6px;
            --radius-md: 12px;
            --radius-lg: 20px;
            --transition: all 0.25s ease-in-out;
        }

        body {
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
            color: var(--text-main);
            background-color: var(--bg-white);
            margin: 0;
            padding: 0;
            line-height: 1.6;
        }

        a {
            color: var(--brand-primary);
            text-decoration: none;
            transition: var(--transition);
        }
        a:hover {
            color: var(--brand-primary-light);
        }

        /* 统一导航 */
        .site-header {
            background: rgba(255, 255, 255, 0.95);
            backdrop-filter: blur(10px);
            border-bottom: 1px solid var(--border-color);
            position: sticky;
            top: 0;
            z-index: 1000;
        }
        .nav-wrapper {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 72px;
        }
        .logo-box {
            display: flex;
            align-items: center;
            gap: 12px;
            font-size: 22px;
            font-weight: 800;
            color: var(--brand-primary);
            letter-spacing: -0.5px;
        }
        .logo-box i {
            font-size: 26px;
            color: var(--brand-accent);
        }
        .nav-menu {
            display: flex;
            align-items: center;
            gap: 28px;
            margin: 0;
            list-style: none;
        }
        .nav-link {
            font-size: 15px;
            font-weight: 600;
            color: var(--text-main);
            position: relative;
            padding: 6px 0;
        }
        .nav-link.active, .nav-link:hover {
            color: var(--brand-primary);
        }
        .nav-link.active::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 100%;
            height: 2px;
            background: var(--brand-primary);
            border-radius: 2px;
        }
        .nav-btn {
            background: var(--brand-primary);
            color: #fff !important;
            padding: 9px 20px;
            border-radius: var(--radius-sm);
            font-weight: 600;
            font-size: 14px;
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }
        .nav-btn:hover {
            background: var(--brand-primary-light);
            box-shadow: 0 4px 12px rgba(30, 86, 160, 0.25);
        }

        /* 统一Section基类 */
        .site-section {
            padding: 70px 0;
            position: relative;
        }
        .section-alt {
            background-color: var(--bg-light);
        }
        .section-header {
            margin-bottom: 45px;
            text-align: center;
        }
        .section-tag {
            display: inline-block;
            padding: 4px 14px;
            background: rgba(30, 86, 160, 0.08);
            color: var(--brand-primary);
            border-radius: 50px;
            font-size: 13px;
            font-weight: 700;
            margin-bottom: 12px;
            text-transform: uppercase;
            letter-spacing: 0.5px;
        }
        .section-title {
            font-size: 30px;
            font-weight: 800;
            color: var(--text-main);
            margin-bottom: 14px;
            line-height: 1.3;
        }
        .section-subtitle {
            font-size: 15px;
            color: var(--text-muted);
            max-width: 780px;
            margin: 0 auto;
            line-height: 1.7;
        }

        /* Hero 落地页强转化首屏 + 斜切效果 */
        .hero-section {
            background: linear-gradient(135deg, #0f2b48 0%, #1e56a0 100%);
            color: #ffffff;
            padding: 90px 0 110px;
            position: relative;
            clip-path: polygon(0 0, 100% 0, 100% 94%, 0 100%);
        }
        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(255, 255, 255, 0.12);
            border: 1px solid rgba(255, 255, 255, 0.25);
            padding: 6px 16px;
            border-radius: 30px;
            font-size: 13px;
            color: #ffdda1;
            margin-bottom: 22px;
        }
        .hero-title {
            font-size: 42px;
            font-weight: 900;
            line-height: 1.25;
            color: #ffffff;
            margin-bottom: 20px;
        }
        .hero-desc {
            font-size: 16px;
            line-height: 1.8;
            color: rgba(255, 255, 255, 0.88);
            margin-bottom: 30px;
            max-width: 760px;
        }
        .hero-points {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            margin-bottom: 35px;
        }
        .hero-point-item {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            background: rgba(255, 255, 255, 0.08);
            padding: 8px 16px;
            border-radius: var(--radius-sm);
            border-left: 3px solid var(--brand-accent);
        }
        .hero-actions {
            display: flex;
            align-items: center;
            gap: 16px;
            margin-bottom: 40px;
        }
        .btn-primary {
            background: var(--brand-accent);
            color: #fff;
            padding: 14px 32px;
            border-radius: var(--radius-sm);
            font-size: 16px;
            font-weight: 700;
            display: inline-flex;
            align-items: center;
            gap: 10px;
            box-shadow: 0 4px 15px rgba(255, 159, 28, 0.4);
        }
        .btn-primary:hover {
            background: #f08c00;
            color: #fff;
            transform: translateY(-2px);
        }
        .hero-trust-bar {
            border-top: 1px solid rgba(255, 255, 255, 0.15);
            padding-top: 24px;
            display: flex;
            align-items: center;
            gap: 30px;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.7);
        }
        .trust-item {
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .trust-item i {
            color: #4ade80;
        }

        /* 左右分栏资讯流与热榜 */
        .content-stream-card {
            background: var(--bg-white);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            padding: 22px;
            margin-bottom: 20px;
            box-shadow: var(--card-shadow);
            transition: var(--transition);
        }
        .content-stream-card:hover {
            transform: translateY(-3px);
            box-shadow: var(--hover-shadow);
            border-color: var(--brand-primary-light);
        }
        .stream-title {
            font-size: 18px;
            font-weight: 700;
            margin-bottom: 10px;
            color: var(--text-main);
        }
        .stream-desc {
            font-size: 14px;
            color: var(--text-muted);
            margin-bottom: 14px;
            line-height: 1.6;
        }
        .stream-meta {
            display: flex;
            align-items: center;
            gap: 18px;
            font-size: 12px;
            color: #94a3b8;
        }
        
        .hot-ranking-box {
            background: var(--bg-white);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            padding: 24px;
            box-shadow: var(--card-shadow);
        }
        .ranking-item {
            display: flex;
            align-items: flex-start;
            gap: 12px;
            padding: 12px 0;
            border-bottom: 1px dashed var(--border-color);
        }
        .ranking-item:last-child {
            border-bottom: none;
        }
        .ranking-num {
            width: 24px;
            height: 24px;
            background: var(--bg-light);
            color: var(--text-muted);
            border-radius: 4px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 12px;
            font-weight: 700;
            flex-shrink: 0;
        }
        .ranking-num.top-1 { background: #fee2e2; color: #ef4444; }
        .ranking-num.top-2 { background: #ffedd5; color: #f97316; }
        .ranking-num.top-3 { background: #fef9c3; color: #eab308; }

        /* 专题条 Band */
        .topic-strip-card {
            background: var(--bg-white);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            padding: 24px;
            text-align: center;
            box-shadow: var(--card-shadow);
            transition: var(--transition);
            height: 100%;
        }
        .topic-strip-card:hover {
            border-color: var(--brand-secondary);
            transform: translateY(-4px);
        }
        .topic-icon {
            font-size: 32px;
            color: var(--brand-primary);
            margin-bottom: 16px;
        }

        /* 标签云组件 */
        .tag-cloud-wrapper {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            justify-content: center;
            max-width: 900px;
            margin: 0 auto;
        }
        .tag-cloud-item {
            background: var(--bg-white);
            border: 1px solid var(--border-color);
            padding: 8px 18px;
            border-radius: 30px;
            font-size: 14px;
            color: var(--text-main);
            box-shadow: 0 2px 5px rgba(0,0,0,0.03);
            transition: var(--transition);
        }
        .tag-cloud-item:hover {
            background: var(--brand-primary);
            color: #fff;
            border-color: var(--brand-primary);
        }

        /* 版本更新 Changelog */
        .changelog-card {
            background: var(--bg-white);
            border-left: 4px solid var(--brand-primary);
            border-radius: var(--radius-sm);
            padding: 20px 24px;
            margin-bottom: 16px;
            box-shadow: var(--card-shadow);
        }
        .changelog-version {
            font-size: 16px;
            font-weight: 700;
            color: var(--brand-primary);
            display: flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 8px;
        }
        .changelog-badge {
            background: #e0f2fe;
            color: #0369a1;
            font-size: 11px;
            padding: 2px 8px;
            border-radius: 10px;
        }

        /* 平台保障承诺 */
        .guarantee-box {
            display: flex;
            align-items: flex-start;
            gap: 16px;
            background: var(--bg-white);
            padding: 24px;
            border-radius: var(--radius-md);
            border: 1px solid var(--border-color);
            height: 100%;
        }
        .guarantee-icon {
            font-size: 28px;
            color: var(--brand-secondary);
            flex-shrink: 0;
        }

        /* 痛点与解法条 */
        .pain-point-row {
            background: var(--bg-white);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            padding: 20px 24px;
            margin-bottom: 16px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 20px;
        }
        .pain-text {
            color: #dc2626;
            font-weight: 600;
            font-size: 14px;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .solution-text {
            color: #15803d;
            font-weight: 600;
            font-size: 14px;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        /* 媒体合作墙 */
        .partner-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
            gap: 20px;
        }
        .partner-item {
            background: var(--bg-white);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-sm);
            padding: 18px;
            text-align: center;
            font-weight: 600;
            font-size: 14px;
            color: var(--text-muted);
            box-shadow: 0 2px 4px rgba(0,0,0,0.02);
        }

        /* 订阅与App下载收口区 (整页唯一定制收口) */
        .subscribe-app-section {
            background: linear-gradient(135deg, #133b6f 0%, #1e56a0 100%);
            color: #fff;
            padding: 80px 0;
            border-radius: var(--radius-lg);
            margin-bottom: 60px;
        }
        .app-download-btn {
            background: rgba(255, 255, 255, 0.15);
            border: 1px solid rgba(255, 255, 255, 0.3);
            color: #fff;
            padding: 12px 24px;
            border-radius: var(--radius-sm);
            display: inline-flex;
            align-items: center;
            gap: 10px;
            font-size: 15px;
            transition: var(--transition);
        }
        .app-download-btn:hover {
            background: #fff;
            color: var(--brand-primary);
        }

        /* 统一页脚 */
        .site-footer {
            background-color: #0d1b2a;
            color: #8da4be;
            padding: 60px 0 30px;
            border-top: 1px solid #1b2e4b;
        }
        .footer-logo {
            font-size: 20px;
            font-weight: 800;
            color: #fff;
            margin-bottom: 14px;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .footer-links {
            list-style: none;
            margin: 0;
            padding: 0;
        }
        .footer-links li {
            margin-bottom: 8px;
        }
        .footer-links a {
            color: #8da4be;
            font-size: 14px;
        }
        .footer-links a:hover {
            color: #fff;
        }
        .footer-bottom {
            margin-top: 50px;
            padding-top: 24px;
            border-top: 1px solid #1b2e4b;
            font-size: 13px;
            text-align: center;
            color: #627d98;
        }

        /* 响应式断点控制 */
        @media (max-width: 1024px) {
            .hero-title { font-size: 34px; }
            .section-title { font-size: 26px; }
        }
        @media (max-width: 768px) {
            .nav-menu { display: none; }
            .hero-section { clip-path: none; padding: 60px 0 70px; }
            .hero-title { font-size: 28px; }
            .pain-point-row { flex-direction: column; align-items: flex-start; }
            .hero-trust-bar { flex-direction: column; align-items: flex-start; gap: 12px; }
        }

/* roulang page: category1 */
:root {
      --brand-primary: #1e56a0;
      --brand-primary-light: #2e75d3;
      --brand-primary-dark: #133b6f;
      --brand-secondary: #00b4d8;
      --brand-accent: #ff9f1c;
      --text-main: #1d2d44;
      --text-muted: #5e6d82;
      --bg-light: #f6f9fc;
      --bg-white: #ffffff;
      --bg-card: #ffffff;
      --border-color: #e2e8f0;
      --card-shadow: 0 10px 25px -5px rgba(15, 23, 42, 0.08), 0 8px 10px -6px rgba(15, 23, 42, 0.04);
      --hover-shadow: 0 20px 30px -10px rgba(30, 86, 160, 0.15);
      --radius-sm: 6px;
      --radius-md: 12px;
      --radius-lg: 20px;
      --transition: all 0.25s ease-in-out;
    }
    
    body {
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
      color: var(--text-main);
      background-color: var(--bg-white);
      margin: 0;
      padding: 0;
      line-height: 1.6;
    }
    
    a {
      color: var(--brand-primary);
      text-decoration: none;
      transition: var(--transition);
    }
    
    a:hover {
      color: var(--brand-primary-light);
    }
    
    /* 统一导航 */
    .site-header {
      background: rgba(255, 255, 255, 0.95);
      backdrop-filter: blur(10px);
      border-bottom: 1px solid var(--border-color);
      position: sticky;
      top: 0;
      z-index: 1000;
    }
    
    .nav-wrapper {
      display: flex;
      align-items: center;
      justify-content: space-between;
      height: 72px;
    }
    
    .logo-box {
      display: flex;
      align-items: center;
      gap: 12px;
      font-size: 22px;
      font-weight: 800;
      color: var(--brand-primary);
      letter-spacing: -0.5px;
    }
    
    .logo-box i {
      font-size: 26px;
      color: var(--brand-accent);
    }
    
    .nav-menu {
      display: flex;
      align-items: center;
      gap: 28px;
      margin: 0;
      list-style: none;
    }
    
    .nav-link {
      font-size: 15px;
      font-weight: 600;
      color: var(--text-main);
      position: relative;
      padding: 6px 0;
    }
    
    .nav-link.active, .nav-link:hover {
      color: var(--brand-primary);
    }
    
    .nav-link.active::after {
      content: '';
      position: absolute;
      bottom: 0;
      left: 0;
      width: 100%;
      height: 2px;
      background: var(--brand-primary);
      border-radius: 2px;
    }
    
    .nav-btn {
      background: var(--brand-primary);
      color: #fff !important;
      padding: 9px 20px;
      border-radius: var(--radius-sm);
      font-weight: 600;
      font-size: 14px;
      display: inline-flex;
      align-items: center;
      gap: 6px;
    }
    
    .nav-btn:hover {
      background: var(--brand-primary-light);
      box-shadow: 0 4px 12px rgba(30, 86, 160, 0.25);
    }
    
    /* 统一Section基类 */
    .site-section {
      padding: 70px 0;
      position: relative;
    }
    
    .section-alt {
      background-color: var(--bg-light);
    }
    
    .section-header {
      margin-bottom: 45px;
      text-align: center;
    }
    
    .section-tag {
      display: inline-block;
      padding: 4px 14px;
      background: rgba(30, 86, 160, 0.08);
      color: var(--brand-primary);
      border-radius: 50px;
      font-size: 13px;
      font-weight: 700;
      margin-bottom: 12px;
      text-transform: uppercase;
      letter-spacing: 0.5px;
    }
    
    .section-title {
      font-size: 30px;
      font-weight: 800;
      color: var(--text-main);
      margin-bottom: 14px;
      line-height: 1.3;
    }
    
    .section-subtitle {
      font-size: 15px;
      color: var(--text-muted);
      max-width: 780px;
      margin: 0 auto;
      line-height: 1.7;
    }

    /* 分类页 Hero 区域 */
    .category-hero {
      background: linear-gradient(135deg, #0f2b48 0%, #1e56a0 100%);
      color: #ffffff;
      padding: 60px 0 80px;
      position: relative;
    }
    
    .category-hero .breadcrumb-box {
      font-size: 13px;
      color: rgba(255, 255, 255, 0.7);
      margin-bottom: 20px;
    }
    
    .category-hero .breadcrumb-box a {
      color: rgba(255, 255, 255, 0.85);
    }
    
    .category-hero .breadcrumb-box a:hover {
      color: #fff;
      text-decoration: underline;
    }
    
    .category-hero h1 {
      font-size: 36px;
      font-weight: 900;
      color: #ffffff;
      margin-bottom: 18px;
    }
    
    .category-hero p.lead {
      font-size: 16px;
      line-height: 1.8;
      color: rgba(255, 255, 255, 0.9);
      max-width: 720px;
      margin-bottom: 28px;
    }
    
    .search-mock-bar {
      background: #ffffff;
      padding: 6px 8px 6px 20px;
      border-radius: 40px;
      display: flex;
      align-items: center;
      box-shadow: 0 12px 30px rgba(0, 0, 0, 0.2);
      max-width: 680px;
    }
    
    .search-mock-bar input {
      border: none;
      box-shadow: none;
      margin: 0;
      font-size: 15px;
      color: var(--text-main);
      background: transparent;
      outline: none;
    }
    
    .search-mock-bar button {
      background: var(--brand-accent);
      color: #fff;
      border: none;
      padding: 12px 26px;
      border-radius: 30px;
      font-weight: 700;
      font-size: 14px;
      cursor: pointer;
      display: flex;
      align-items: center;
      gap: 8px;
      transition: var(--transition);
    }
    
    .search-mock-bar button:hover {
      background: #e68e17;
    }

    /* 模式卡片 */
    .mode-card {
      background: var(--bg-card);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 28px 24px;
      box-shadow: var(--card-shadow);
      transition: var(--transition);
      height: 100%;
    }
    
    .mode-card:hover {
      transform: translateY(-5px);
      box-shadow: var(--hover-shadow);
      border-color: rgba(30, 86, 160, 0.3);
    }
    
    .mode-icon {
      width: 54px;
      height: 54px;
      border-radius: 12px;
      background: rgba(30, 86, 160, 0.08);
      color: var(--brand-primary);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 22px;
      margin-bottom: 20px;
    }
    
    .mode-card h3 {
      font-size: 18px;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 12px;
    }
    
    .mode-card p {
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.7;
      margin-bottom: 0;
    }

    /* 矩阵维度卡片 */
    .dimension-box {
      background: #ffffff;
      border-radius: var(--radius-md);
      border: 1px solid var(--border-color);
      padding: 24px;
      box-shadow: var(--card-shadow);
      margin-bottom: 20px;
    }
    
    .dimension-box h4 {
      font-size: 16px;
      font-weight: 700;
      color: var(--brand-primary);
      margin-bottom: 14px;
      display: flex;
      align-items: center;
      gap: 10px;
    }
    
    .tag-cloud {
      display: flex;
      flex-wrap: wrap;
      gap: 8px;
    }
    
    .tag-pill {
      background: var(--bg-light);
      border: 1px solid var(--border-color);
      padding: 5px 12px;
      border-radius: 20px;
      font-size: 13px;
      color: var(--text-main);
      font-weight: 500;
      transition: var(--transition);
    }
    
    .tag-pill:hover {
      background: var(--brand-primary);
      color: #fff;
      border-color: var(--brand-primary);
    }

    /* 引擎能力对比 */
    .feature-list-item {
      display: flex;
      gap: 16px;
      margin-bottom: 24px;
    }
    
    .feature-icon-bullet {
      width: 32px;
      height: 32px;
      border-radius: 50%;
      background: rgba(0, 180, 216, 0.15);
      color: var(--brand-secondary);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 14px;
      flex-shrink: 0;
      margin-top: 4px;
    }

    /* 案例展示网格 */
    .asset-item-card {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      overflow: hidden;
      box-shadow: var(--card-shadow);
      transition: var(--transition);
      margin-bottom: 24px;
    }
    
    .asset-item-card:hover {
      box-shadow: var(--hover-shadow);
    }
    
    .asset-preview-placeholder {
      height: 160px;
      background: linear-gradient(135deg, #1e56a0 0%, #00b4d8 100%);
      display: flex;
      flex-direction: column;
      align-items: center;
      justify-content: center;
      color: #ffffff;
      padding: 16px;
      text-align: center;
    }
    
    .asset-body {
      padding: 18px;
    }
    
    .asset-body h4 {
      font-size: 16px;
      font-weight: 700;
      margin-bottom: 8px;
      color: var(--text-main);
    }
    
    .asset-meta {
      display: flex;
      justify-content: space-between;
      font-size: 12px;
      color: var(--text-muted);
      border-top: 1px dashed var(--border-color);
      padding-top: 12px;
      margin-top: 12px;
    }

    /* 统一页脚 */
    .site-footer {
      background: #0f172a;
      color: #94a3b8;
      padding: 60px 0 25px;
      border-top: 1px solid #1e293b;
    }
    
    .footer-logo {
      display: flex;
      align-items: center;
      gap: 10px;
      font-size: 20px;
      font-weight: 800;
      color: #ffffff;
      margin-bottom: 16px;
    }
    
    .footer-links {
      list-style: none;
      padding: 0;
      margin: 0;
    }
    
    .footer-links li {
      margin-bottom: 10px;
    }
    
    .footer-links a {
      color: #94a3b8;
      font-size: 14px;
      transition: var(--transition);
    }
    
    .footer-links a:hover {
      color: #ffffff;
      padding-left: 4px;
    }
    
    .footer-bottom {
      border-top: 1px solid #1e293b;
      margin-top: 40px;
      padding-top: 25px;
      text-align: center;
      font-size: 13px;
      color: #64748b;
    }
    
    @media screen and (max-width: 768px) {
      .nav-menu {
        gap: 14px;
      }
      .section-title {
        font-size: 24px;
      }
      .category-hero h1 {
        font-size: 26px;
      }
      .search-mock-bar {
        flex-direction: column;
        border-radius: var(--radius-md);
        padding: 12px;
        gap: 10px;
      }
      .search-mock-bar input {
        width: 100%;
      }
      .search-mock-bar button {
        width: 100%;
        justify-content: center;
      }
    }