/* roulang page: index */
:root {
      --primary: #0f172a;
      --primary-accent: #2563eb;
      --primary-glow: #3b82f6;
      --secondary: #0ea5e9;
      --text-main: #1e293b;
      --text-muted: #64748b;
      --bg-light: #f8fafc;
      --bg-white: #ffffff;
      --bg-dark: #090d16;
      --border-color: #e2e8f0;
      --radius-sm: 6px;
      --radius-md: 12px;
      --radius-lg: 20px;
      --shadow-sm: 0 2px 8px rgba(15, 23, 42, 0.04);
      --shadow-md: 0 8px 24px rgba(15, 23, 42, 0.08);
      --shadow-lg: 0 20px 40px rgba(15, 23, 42, 0.12);
      --transition: all 0.28s cubic-bezier(0.4, 0, 0.2, 1);
    }

    * { box-sizing: border-box; }
    body {
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
      color: var(--text-main);
      background-color: var(--bg-light);
      line-height: 1.65;
      margin: 0;
      padding: 0;
      -webkit-font-smoothing: antialiased;
    }

    /* 顶部导航 - 白底内容平台规范 */
    .site-header {
      background: rgba(255, 255, 255, 0.98);
      backdrop-filter: blur(12px);
      border-bottom: 1px solid var(--border-color);
      position: sticky;
      top: 0;
      z-index: 1000;
      box-shadow: var(--shadow-sm);
    }
    .header-inner {
      display: flex;
      align-items: center;
      justify-content: space-between;
      height: 72px;
      max-width: 1240px;
      margin: 0 auto;
      padding: 0 20px;
    }
    .brand-logo {
      display: flex;
      align-items: center;
      gap: 10px;
      font-weight: 800;
      font-size: 1.25rem;
      color: var(--primary);
      text-decoration: none;
      letter-spacing: -0.5px;
    }
    .brand-logo i {
      color: var(--primary-accent);
      font-size: 1.6rem;
    }
    .nav-menu {
      display: flex;
      list-style: none;
      margin: 0;
      padding: 0;
      gap: 28px;
    }
    .nav-menu a {
      color: #334155;
      font-weight: 600;
      font-size: 0.95rem;
      text-decoration: none;
      transition: var(--transition);
      position: relative;
      padding: 6px 0;
    }
    .nav-menu a:hover, .nav-menu a.active {
      color: var(--primary-accent);
    }
    .nav-menu a.active::after {
      content: '';
      position: absolute;
      bottom: -2px;
      left: 0;
      right: 0;
      height: 2px;
      background: var(--primary-accent);
      border-radius: 2px;
    }
    .header-actions {
      display: flex;
      align-items: center;
      gap: 16px;
    }
    .search-wrapper {
      position: relative;
      display: none;
    }
    @media (min-width: 900px) {
      .search-wrapper { display: block; }
    }
    .search-wrapper input {
      border: 1px solid var(--border-color);
      border-radius: 99px;
      padding: 8px 16px 8px 36px;
      font-size: 0.85rem;
      width: 190px;
      background: #f1f5f9;
      outline: none;
      margin: 0;
      transition: var(--transition);
    }
    .search-wrapper input:focus {
      background: #fff;
      border-color: var(--primary-accent);
      width: 230px;
      box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.15);
    }
    .search-wrapper i {
      position: absolute;
      left: 14px;
      top: 50%;
      transform: translateY(-50%);
      color: var(--text-muted);
      font-size: 0.85rem;
    }
    .btn-header {
      background: var(--primary-accent);
      color: #fff;
      padding: 9px 20px;
      border-radius: 99px;
      font-size: 0.9rem;
      font-weight: 600;
      text-decoration: none;
      box-shadow: 0 4px 14px rgba(37, 99, 235, 0.3);
      transition: var(--transition);
      display: inline-flex;
      align-items: center;
      gap: 6px;
    }
    .btn-header:hover {
      background: #1d4ed8;
      color: #fff;
      transform: translateY(-1px);
    }

    /* 全局版式框架 */
    .section-wrap {
      padding: 80px 0;
      position: relative;
    }
    .section-wrap.alt-bg {
      background: #ffffff;
      border-top: 1px solid var(--border-color);
      border-bottom: 1px solid var(--border-color);
    }
    .section-wrap.dark-bg {
      background: var(--bg-dark);
      color: #e2e8f0;
    }
    .content-container {
      max-width: 1200px;
      margin: 0 auto;
      padding: 0 20px;
    }
    .section-header {
      text-align: center;
      margin-bottom: 50px;
    }
    .section-badge {
      display: inline-block;
      font-size: 0.8rem;
      font-weight: 700;
      text-transform: uppercase;
      letter-spacing: 1px;
      padding: 4px 14px;
      border-radius: 99px;
      background: rgba(37, 99, 235, 0.1);
      color: var(--primary-accent);
      margin-bottom: 12px;
    }
    .section-header h2 {
      font-size: 2.1rem;
      font-weight: 800;
      color: var(--primary);
      margin-bottom: 16px;
      line-height: 1.3;
    }
    .section-wrap.dark-bg .section-header h2 {
      color: #ffffff;
    }
    .section-header p {
      font-size: 1.05rem;
      color: var(--text-muted);
      max-width: 720px;
      margin: 0 auto;
    }
    .section-wrap.dark-bg .section-header p {
      color: #94a3b8;
    }

    /* 蓝图：Hero 视频官网风格（全宽遮罩 + 播放按钮 + 试用 CTA） */
    .hero-video-stage {
      position: relative;
      min-height: 580px;
      display: flex;
      align-items: center;
      justify-content: center;
      background: url('/assets/images/e015979ba2913a8a.webp') center/cover no-repeat;
      overflow: hidden;
      color: #ffffff;
      padding: 90px 20px;
      text-align: center;
    }
    .hero-overlay {
      position: absolute;
      inset: 0;
      background: linear-gradient(135deg, rgba(9, 13, 22, 0.88) 0%, rgba(15, 23, 42, 0.82) 100%);
      backdrop-filter: blur(2px);
    }
    .hero-content {
      position: relative;
      z-index: 2;
      max-width: 900px;
      margin: 0 auto;
    }
    .hero-tagline {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      padding: 6px 18px;
      border-radius: 99px;
      background: rgba(255, 255, 255, 0.12);
      border: 1px solid rgba(255, 255, 255, 0.2);
      font-size: 0.85rem;
      margin-bottom: 24px;
      font-weight: 600;
    }
    .hero-content h1 {
      font-size: 2.8rem;
      font-weight: 800;
      line-height: 1.25;
      margin-bottom: 20px;
      letter-spacing: -1px;
      text-shadow: 0 4px 16px rgba(0, 0, 0, 0.4);
    }
    .hero-summary {
      font-size: 1.15rem;
      color: #cbd5e1;
      line-height: 1.8;
      max-width: 780px;
      margin: 0 auto 36px;
    }
    .hero-actions {
      display: flex;
      justify-content: center;
      align-items: center;
      gap: 20px;
      flex-wrap: wrap;
    }
    .btn-play-trigger {
      width: 58px;
      height: 58px;
      border-radius: 50%;
      background: #ffffff;
      color: var(--primary-accent);
      display: inline-flex;
      align-items: center;
      justify-content: center;
      font-size: 1.25rem;
      box-shadow: 0 0 0 8px rgba(255, 255, 255, 0.2);
      transition: var(--transition);
      cursor: pointer;
    }
    .btn-play-trigger:hover {
      transform: scale(1.08);
      box-shadow: 0 0 0 14px rgba(255, 255, 255, 0.3);
      color: #1d4ed8;
    }
    .btn-hero-primary {
      background: #2563eb;
      color: #fff;
      padding: 16px 36px;
      border-radius: 99px;
      font-weight: 700;
      font-size: 1.05rem;
      text-decoration: none;
      box-shadow: 0 8px 24px rgba(37, 99, 235, 0.4);
      transition: var(--transition);
      display: inline-flex;
      align-items: center;
      gap: 10px;
    }
    .btn-hero-primary:hover {
      background: #1d4ed8;
      color: #fff;
      transform: translateY(-2px);
    }
    .btn-hero-secondary {
      background: rgba(255, 255, 255, 0.1);
      color: #fff;
      border: 1px solid rgba(255, 255, 255, 0.3);
      padding: 15px 30px;
      border-radius: 99px;
      font-weight: 600;
      font-size: 1rem;
      text-decoration: none;
      transition: var(--transition);
    }
    .btn-hero-secondary:hover {
      background: rgba(255, 255, 255, 0.2);
      color: #fff;
    }

    /* 1. 优惠阶梯 */
    .ladder-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
      gap: 24px;
    }
    .ladder-card {
      background: #fff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 30px 24px;
      position: relative;
      transition: var(--transition);
      box-shadow: var(--shadow-sm);
    }
    .ladder-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-md);
      border-color: var(--primary-accent);
    }
    .ladder-step {
      font-size: 0.85rem;
      font-weight: 700;
      color: var(--primary-accent);
      margin-bottom: 8px;
    }
    .ladder-cost {
      font-size: 1.8rem;
      font-weight: 800;
      color: var(--primary);
      margin-bottom: 12px;
    }
    .ladder-cost span {
      font-size: 0.9rem;
      font-weight: 400;
      color: var(--text-muted);
    }
    .ladder-desc {
      font-size: 0.92rem;
      color: var(--text-muted);
      line-height: 1.6;
    }

    /* 2. 套餐对比 */
    .pricing-table-container {
      background: #fff;
      border-radius: var(--radius-lg);
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-md);
      overflow-x: auto;
    }
    .custom-table {
      width: 100%;
      border-collapse: collapse;
      margin: 0;
      text-align: left;
    }
    .custom-table th, .custom-table td {
      padding: 18px 24px;
      border-bottom: 1px solid var(--border-color);
      font-size: 0.95rem;
    }
    .custom-table th {
      background: #f8fafc;
      font-weight: 700;
      color: var(--primary);
    }
    .badge-free {
      background: #ecfdf5;
      color: #059669;
      padding: 4px 10px;
      border-radius: 99px;
      font-size: 0.8rem;
      font-weight: 700;
    }

    /* 3. 限时入口 */
    .flash-box {
      background: linear-gradient(100deg, #1e293b 0%, #0f172a 100%);
      border-radius: var(--radius-lg);
      padding: 44px;
      color: #fff;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 30px;
      flex-wrap: wrap;
    }
    .flash-info h3 {
      color: #fff;
      font-size: 1.6rem;
      font-weight: 800;
      margin-bottom: 10px;
    }
    .flash-info p {
      color: #94a3b8;
      margin: 0;
      max-width: 600px;
    }

    /* 4. 爆款清单 */
    .product-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
      gap: 28px;
    }
    .product-card {
      background: #fff;
      border-radius: var(--radius-md);
      border: 1px solid var(--border-color);
      overflow: hidden;
      box-shadow: var(--shadow-sm);
      transition: var(--transition);
      display: flex;
      flex-direction: column;
    }
    .product-card:hover {
      box-shadow: var(--shadow-lg);
      transform: translateY(-4px);
    }
    .product-cover {
      height: 180px;
      overflow: hidden;
      position: relative;
    }
    .product-cover img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: var(--transition);
    }
    .product-card:hover .product-cover img {
      transform: scale(1.05);
    }
    .product-body {
      padding: 24px;
      flex-grow: 1;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }
    .product-title {
      font-size: 1.2rem;
      font-weight: 700;
      margin-bottom: 10px;
      color: var(--primary);
    }
    .product-tags {
      display: flex;
      gap: 8px;
      margin-bottom: 16px;
      flex-wrap: wrap;
    }
    .product-tag {
      font-size: 0.75rem;
      padding: 3px 8px;
      background: #f1f5f9;
      border-radius: 4px;
      color: #475569;
    }

    /* 5. 评价墙 */
    .testimonial-columns {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
      gap: 24px;
    }
    .testimonial-card {
      background: #fff;
      padding: 24px;
      border-radius: var(--radius-md);
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-sm);
    }
    .testimonial-author {
      display: flex;
      align-items: center;
      gap: 12px;
      margin-bottom: 14px;
    }
    .author-avatar {
      width: 44px;
      height: 44px;
      border-radius: 50%;
      background: #e2e8f0;
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 700;
      color: var(--primary-accent);
    }
    .author-meta h4 {
      margin: 0;
      font-size: 0.95rem;
      font-weight: 700;
    }
    .author-meta span {
      font-size: 0.8rem;
      color: var(--text-muted);
    }

    /* 6. 保障图标条 */
    .security-strip {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
      gap: 24px;
      text-align: center;
    }
    .security-item {
      padding: 24px;
      background: #fff;
      border-radius: var(--radius-md);
      border: 1px solid var(--border-color);
    }
    .security-item i {
      font-size: 2.2rem;
      color: var(--primary-accent);
      margin-bottom: 14px;
    }
    .security-item h3 {
      font-size: 1.05rem;
      font-weight: 700;
      margin-bottom: 6px;
    }

    /* 7. 资讯列表 */
    .news-list {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
      gap: 24px;
    }
    .news-card {
      background: #fff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 24px;
      box-shadow: var(--shadow-sm);
      transition: var(--transition);
    }
    .news-card:hover {
      border-color: var(--primary-accent);
      transform: translateY(-2px);
    }
    .news-date {
      font-size: 0.8rem;
      color: var(--text-muted);
      margin-bottom: 8px;
    }
    .news-card h3 {
      font-size: 1.15rem;
      font-weight: 700;
      margin-bottom: 10px;
      line-height: 1.4;
    }

    /* 8. 异议拆解 */
    .objection-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
      gap: 24px;
    }
    .objection-item {
      background: #fff;
      border-radius: var(--radius-md);
      border: 1px solid var(--border-color);
      padding: 24px;
    }
    .objection-q {
      display: flex;
      align-items: flex-start;
      gap: 12px;
      font-weight: 700;
      color: #dc2626;
      margin-bottom: 12px;
    }
    .objection-a {
      display: flex;
      align-items: flex-start;
      gap: 12px;
      color: var(--text-main);
      font-size: 0.95rem;
    }

    /* 9. 焦点主题 */
    .focus-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
      gap: 24px;
    }
    .focus-card {
      background: #fff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 24px;
      transition: var(--transition);
    }
    .focus-card:hover {
      box-shadow: var(--shadow-md);
      border-color: var(--secondary);
    }

    /* 10. 加购引导（单行动收口区） */
    .final-cta-box {
      background: linear-gradient(135deg, #0f172a 0%, #1e293b 100%);
      border-radius: var(--radius-lg);
      padding: 60px 30px;
      color: #fff;
      text-align: center;
      box-shadow: var(--shadow-lg);
    }
    .final-cta-box h2 {
      font-size: 2.2rem;
      font-weight: 800;
      color: #fff;
      margin-bottom: 16px;
    }
    .final-cta-box p {
      max-width: 640px;
      margin: 0 auto 30px;
      color: #94a3b8;
      font-size: 1.05rem;
    }

    /* 页脚 */
    .site-footer {
      background: #090d16;
      color: #94a3b8;
      padding: 70px 0 30px;
      border-top: 1px solid #1e293b;
      font-size: 0.9rem;
    }
    .footer-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
      gap: 40px;
      margin-bottom: 50px;
    }
    .footer-col h4 {
      color: #fff;
      font-size: 1rem;
      font-weight: 700;
      margin-bottom: 20px;
    }
    .footer-col ul {
      list-style: none;
      padding: 0;
      margin: 0;
    }
    .footer-col li {
      margin-bottom: 10px;
    }
    .footer-col a {
      color: #94a3b8;
      text-decoration: none;
      transition: var(--transition);
    }
    .footer-col a:hover {
      color: #fff;
    }
    .footer-bottom {
      border-top: 1px solid #1e293b;
      padding-top: 30px;
      text-align: center;
      font-size: 0.82rem;
      color: #64748b;
    }

    /* 移动端菜单切换 */
    .mobile-toggle {
      display: none;
      background: none;
      border: none;
      font-size: 1.5rem;
      color: var(--primary);
      cursor: pointer;
    }
    @media (max-width: 820px) {
      .mobile-toggle { display: block; }
      .nav-menu {
        display: none;
        position: absolute;
        top: 72px;
        left: 0;
        right: 0;
        background: #fff;
        flex-direction: column;
        padding: 20px;
        border-bottom: 1px solid var(--border-color);
        box-shadow: var(--shadow-md);
      }
      .nav-menu.show { display: flex; }
      .hero-content h1 { font-size: 2rem; }
      .flash-box { flex-direction: column; text-align: center; }
    }

/* roulang page: category1 */
:root {
      --primary: #0f172a;
      --primary-accent: #2563eb;
      --primary-glow: #3b82f6;
      --secondary: #0ea5e9;
      --text-main: #1e293b;
      --text-muted: #64748b;
      --bg-light: #f8fafc;
      --bg-white: #ffffff;
      --bg-dark: #090d16;
      --border-color: #e2e8f0;
      --radius-sm: 6px;
      --radius-md: 12px;
      --radius-lg: 20px;
      --shadow-sm: 0 2px 8px rgba(15, 23, 42, 0.04);
      --shadow-md: 0 8px 24px rgba(15, 23, 42, 0.08);
      --shadow-lg: 0 20px 40px rgba(15, 23, 42, 0.12);
      --transition: all 0.28s cubic-bezier(0.4, 0, 0.2, 1);
    }
    * {
      box-sizing: border-box;
    }
    body {
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
      color: var(--text-main);
      background-color: var(--bg-light);
      line-height: 1.65;
      margin: 0;
      padding: 0;
      -webkit-font-smoothing: antialiased;
    }
    a {
      color: var(--primary-accent);
      text-decoration: none;
      transition: var(--transition);
    }
    a:hover {
      color: #1d4ed8;
    }
    img {
      max-width: 100%;
      height: auto;
      display: block;
    }

    /* 顶部导航 */
    .site-header {
      background: rgba(255, 255, 255, 0.98);
      backdrop-filter: blur(12px);
      border-bottom: 1px solid var(--border-color);
      position: sticky;
      top: 0;
      z-index: 1000;
      box-shadow: var(--shadow-sm);
    }
    .header-inner {
      display: flex;
      align-items: center;
      justify-content: space-between;
      height: 72px;
      max-width: 1240px;
      margin: 0 auto;
      padding: 0 20px;
    }
    .brand-logo {
      display: flex;
      align-items: center;
      gap: 10px;
      font-weight: 800;
      font-size: 1.25rem;
      color: var(--primary);
      text-decoration: none;
      letter-spacing: -0.5px;
    }
    .brand-logo i {
      color: var(--primary-accent);
      font-size: 1.6rem;
    }
    .nav-menu {
      display: flex;
      list-style: none;
      margin: 0;
      padding: 0;
      gap: 28px;
    }
    .nav-menu a {
      color: #334155;
      font-weight: 600;
      font-size: 0.95rem;
      text-decoration: none;
      transition: var(--transition);
      position: relative;
      padding: 6px 0;
    }
    .nav-menu a:hover, .nav-menu a.active {
      color: var(--primary-accent);
    }
    .nav-menu a.active::after {
      content: '';
      position: absolute;
      bottom: -2px;
      left: 0;
      right: 0;
      height: 2px;
      background: var(--primary-accent);
      border-radius: 2px;
    }
    .header-actions {
      display: flex;
      align-items: center;
      gap: 16px;
    }
    .search-wrapper {
      position: relative;
      display: block;
    }
    .search-wrapper input {
      border: 1px solid var(--border-color);
      border-radius: 99px;
      padding: 8px 16px 8px 36px;
      font-size: 0.85rem;
      width: 190px;
      background: #f1f5f9;
      outline: none;
      margin: 0;
      transition: var(--transition);
    }
    .search-wrapper input:focus {
      background: #fff;
      border-color: var(--primary-accent);
      width: 230px;
      box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.15);
    }
    .search-wrapper i {
      position: absolute;
      left: 14px;
      top: 50%;
      transform: translateY(-50%);
      color: var(--text-muted);
      font-size: 0.85rem;
    }
    .btn-header {
      background: var(--primary-accent);
      color: #fff;
      padding: 9px 20px;
      border-radius: 99px;
      font-size: 0.9rem;
      font-weight: 600;
      text-decoration: none;
      box-shadow: 0 4px 14px rgba(37, 99, 235, 0.3);
      transition: var(--transition);
      display: inline-flex;
      align-items: center;
      gap: 6px;
    }
    .btn-header:hover {
      background: #1d4ed8;
      color: #fff;
      transform: translateY(-1px);
    }
    .mobile-toggle {
      display: none;
      background: none;
      border: none;
      font-size: 1.4rem;
      color: var(--primary);
      cursor: pointer;
      padding: 4px;
    }

    /* 板块框架与容器 */
    .section-wrap {
      padding: 76px 0;
      position: relative;
    }
    .section-wrap.alt-bg {
      background: #ffffff;
      border-top: 1px solid var(--border-color);
      border-bottom: 1px solid var(--border-color);
    }
    .section-wrap.dark-bg {
      background: var(--bg-dark);
      color: #e2e8f0;
    }
    .content-container {
      max-width: 1200px;
      margin: 0 auto;
      padding: 0 20px;
    }
    .section-header {
      text-align: center;
      margin-bottom: 48px;
    }
    .section-badge {
      display: inline-block;
      font-size: 0.8rem;
      font-weight: 700;
      text-transform: uppercase;
      letter-spacing: 0.8px;
      padding: 4px 14px;
      border-radius: 99px;
      background: rgba(37, 99, 235, 0.1);
      color: var(--primary-accent);
      margin-bottom: 12px;
    }
    .dark-bg .section-badge {
      background: rgba(37, 99, 235, 0.25);
      color: #60a5fa;
    }
    .section-header h2 {
      font-size: 2.1rem;
      font-weight: 800;
      color: var(--primary);
      margin-bottom: 14px;
      line-height: 1.3;
    }
    .section-wrap.dark-bg .section-header h2 {
      color: #ffffff;
    }
    .section-header p {
      font-size: 1.05rem;
      color: var(--text-muted);
      max-width: 720px;
      margin: 0 auto;
    }
    .section-wrap.dark-bg .section-header p {
      color: #94a3b8;
    }

    /* 蓝图：Hero 开发者/API 风格 (一句话能力 + 代码示意块 + 控制台 CTA) */
    .hero-dev-stage {
      background: linear-gradient(135deg, #090d16 0%, #0f172a 100%);
      color: #ffffff;
      padding: 80px 0 90px;
      position: relative;
      overflow: hidden;
      border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    }
    .hero-dev-stage::before {
      content: '';
      position: absolute;
      top: -150px;
      right: -100px;
      width: 500px;
      height: 500px;
      background: radial-gradient(circle, rgba(37, 99, 235, 0.18) 0%, transparent 70%);
      pointer-events: none;
    }
    .hero-grid {
      display: grid;
      grid-template-columns: 1.15fr 0.85fr;
      gap: 40px;
      align-items: center;
    }
    .hero-content h1 {
      font-size: 2.75rem;
      font-weight: 800;
      line-height: 1.25;
      margin-bottom: 18px;
      color: #ffffff;
      letter-spacing: -0.5px;
    }
    .hero-content h1 span {
      background: linear-gradient(90deg, #60a5fa, #38bdf8);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
    }
    .hero-desc {
      font-size: 1.1rem;
      line-height: 1.8;
      color: #94a3b8;
      margin-bottom: 30px;
    }
    .hero-cta-group {
      display: flex;
      flex-wrap: wrap;
      gap: 16px;
      align-items: center;
    }
    .btn-dev-primary {
      background: var(--primary-accent);
      color: #ffffff;
      font-weight: 700;
      padding: 13px 28px;
      border-radius: var(--radius-sm);
      display: inline-flex;
      align-items: center;
      gap: 10px;
      font-size: 0.98rem;
      border: 1px solid rgba(255,255,255,0.1);
      box-shadow: 0 4px 20px rgba(37, 99, 235, 0.4);
      transition: var(--transition);
    }
    .btn-dev-primary:hover {
      background: #1d4ed8;
      color: #ffffff;
      transform: translateY(-2px);
    }
    .btn-dev-secondary {
      background: rgba(255, 255, 255, 0.08);
      color: #e2e8f0;
      font-weight: 600;
      padding: 13px 24px;
      border-radius: var(--radius-sm);
      border: 1px solid rgba(255, 255, 255, 0.16);
      display: inline-flex;
      align-items: center;
      gap: 8px;
      transition: var(--transition);
    }
    .btn-dev-secondary:hover {
      background: rgba(255, 255, 255, 0.16);
      color: #ffffff;
    }

    /* 代码示意块 */
    .terminal-window {
      background: #040711;
      border-radius: var(--radius-md);
      border: 1px solid #1e293b;
      box-shadow: 0 20px 40px rgba(0, 0, 0, 0.6);
      overflow: hidden;
      font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
    }
    .terminal-header {
      background: #0f172a;
      padding: 10px 16px;
      display: flex;
      align-items: center;
      gap: 8px;
      border-bottom: 1px solid #1e293b;
    }
    .term-dot {
      width: 10px;
      height: 10px;
      border-radius: 50%;
    }
    .dot-red { background: #ef4444; }
    .dot-yellow { background: #f59e0b; }
    .dot-green { background: #10b981; }
    .term-title {
      font-size: 0.8rem;
      color: #64748b;
      margin-left: auto;
    }
    .terminal-body {
      padding: 20px;
      font-size: 0.88rem;
      line-height: 1.7;
      color: #cbd5e1;
    }
    .terminal-body .cmd {
      color: #38bdf8;
    }
    .terminal-body .comment {
      color: #64748b;
    }
    .terminal-body .success {
      color: #10b981;
      font-weight: 600;
    }

    /* 板块1：指标看板 */
    .metrics-bar-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 24px;
    }
    .metric-card {
      background: var(--bg-white);
      padding: 24px 20px;
      border-radius: var(--radius-md);
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-sm);
      text-align: center;
      transition: var(--transition);
    }
    .metric-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-md);
      border-color: var(--primary-accent);
    }
    .metric-num {
      font-size: 2.3rem;
      font-weight: 800;
      color: var(--primary-accent);
      margin-bottom: 6px;
      font-family: "Impact", sans-serif;
      letter-spacing: -0.5px;
    }
    .metric-label {
      font-size: 0.92rem;
      font-weight: 700;
      color: var(--primary);
      margin-bottom: 6px;
    }
    .metric-sub {
      font-size: 0.8rem;
      color: var(--text-muted);
      margin: 0;
    }

    /* 板块2：服务矩阵 (卡片组) */
    .matrix-cards-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 28px;
    }
    .matrix-card {
      background: #ffffff;
      border-radius: var(--radius-md);
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-sm);
      padding: 30px;
      position: relative;
      display: flex;
      flex-direction: column;
      transition: var(--transition);
    }
    .matrix-card:hover {
      border-color: var(--primary-accent);
      box-shadow: var(--shadow-md);
      transform: translateY(-4px);
    }
    .matrix-card.featured {
      border-color: var(--primary-accent);
      box-shadow: 0 10px 30px rgba(37, 99, 235, 0.12);
    }
    .matrix-tag {
      position: absolute;
      top: 16px;
      right: 16px;
      background: #dbeafe;
      color: var(--primary-accent);
      font-size: 0.75rem;
      font-weight: 700;
      padding: 3px 10px;
      border-radius: 99px;
    }
    .matrix-icon {
      width: 52px;
      height: 52px;
      border-radius: var(--radius-sm);
      background: #eff6ff;
      color: var(--primary-accent);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 1.5rem;
      margin-bottom: 20px;
    }
    .matrix-title {
      font-size: 1.3rem;
      font-weight: 700;
      color: var(--primary);
      margin-bottom: 12px;
    }
    .matrix-intro {
      font-size: 0.9rem;
      color: var(--text-muted);
      margin-bottom: 20px;
      line-height: 1.6;
    }
    .matrix-specs {
      list-style: none;
      padding: 0;
      margin: 0 0 24px 0;
      border-top: 1px dashed var(--border-color);
      padding-top: 16px;
      flex-grow: 1;
    }
    .matrix-specs li {
      display: flex;
      align-items: center;
      gap: 8px;
      font-size: 0.88rem;
      color: #334155;
      margin-bottom: 10px;
    }
    .matrix-specs li i {
      color: #10b981;
      font-size: 0.85rem;
    }
    .matrix-btn {
      display: block;
      text-align: center;
      background: #f1f5f9;
      color: var(--primary);
      font-weight: 600;
      padding: 10px 16px;
      border-radius: var(--radius-sm);
      transition: var(--transition);
      font-size: 0.92rem;
    }
    .matrix-btn:hover {
      background: var(--primary-accent);
      color: #ffffff;
    }

    /* 板块3：结果对比 (图文+表格) */
    .compare-container {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 40px;
      align-items: center;
    }
    .compare-table {
      width: 100%;
      border-collapse: collapse;
      background: #ffffff;
      border-radius: var(--radius-md);
      overflow: hidden;
      box-shadow: var(--shadow-sm);
      border: 1px solid var(--border-color);
      margin: 0;
    }
    .compare-table th {
      background: #f8fafc;
      padding: 14px 18px;
      font-weight: 700;
      font-size: 0.9rem;
      color: var(--primary);
      text-align: left;
      border-bottom: 1px solid var(--border-color);
    }
    .compare-table td {
      padding: 14px 18px;
      font-size: 0.88rem;
      color: #334155;
      border-bottom: 1px solid #f1f5f9;
    }
    .compare-table tr:last-child td {
      border-bottom: none;
    }
    .compare-feature-img {
      border-radius: var(--radius-md);
      box-shadow: var(--shadow-md);
      border: 1px solid var(--border-color);
      overflow: hidden;
    }

    /* 板块4：里程碑时间轴 */
    .milestone-timeline {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
      position: relative;
    }
    .timeline-item {
      background: #ffffff;
      padding: 24px;
      border-radius: var(--radius-md);
      border: 1px solid var(--border-color);
      position: relative;
    }
    .timeline-step {
      display: inline-block;
      font-size: 0.75rem;
      font-weight: 800;
      color: var(--primary-accent);
      background: #eff6ff;
      padding: 3px 8px;
      border-radius: 4px;
      margin-bottom: 10px;
    }
    .timeline-title {
      font-size: 1.05rem;
      font-weight: 700;
      color: var(--primary);
      margin-bottom: 8px;
    }
    .timeline-desc {
      font-size: 0.86rem;
      color: var(--text-muted);
      line-height: 1.6;
      margin: 0;
    }

    /* 板块5：资讯列表 (带封面配图) */
    .news-cards-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }
    .news-card {
      background: #ffffff;
      border-radius: var(--radius-md);
      overflow: hidden;
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-sm);
      display: flex;
      flex-direction: column;
      transition: var(--transition);
    }
    .news-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-md);
      border-color: var(--primary-accent);
    }
    .news-thumb {
      height: 180px;
      overflow: hidden;
    }
    .news-thumb img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: var(--transition);
    }
    .news-card:hover .news-thumb img {
      transform: scale(1.05);
    }
    .news-content {
      padding: 20px;
      flex-grow: 1;
      display: flex;
      flex-direction: column;
    }
    .news-date {
      font-size: 0.75rem;
      color: #94a3b8;
      margin-bottom: 8px;
      display: flex;
      align-items: center;
      gap: 5px;
    }
    .news-title {
      font-size: 1.08rem;
      font-weight: 700;
      color: var(--primary);
      margin-bottom: 10px;
      line-height: 1.4;
    }
    .news-excerpt {
      font-size: 0.85rem;
      color: var(--text-muted);
      line-height: 1.6;
      margin-bottom: 16px;
      flex-grow: 1;
    }
    .news-link {
      font-size: 0.85rem;
      font-weight: 600;
      color: var(--primary-accent);
      display: inline-flex;
      align-items: center;
      gap: 6px;
    }

    /* 板块6：平台保障 (深色卡片网格) */
    .guarantee-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }
    .guarantee-item {
      background: rgba(255, 255, 255, 0.05);
      border: 1px solid rgba(255, 255, 255, 0.1);
      border-radius: var(--radius-md);
      padding: 28px 24px;
      transition: var(--transition);
    }
    .guarantee-item:hover {
      background: rgba(255, 255, 255, 0.09);
      border-color: rgba(96, 165, 250, 0.4);
    }
    .guarantee-item i {
      font-size: 1.8rem;
      color: #38bdf8;
      margin-bottom: 16px;
      display: block;
    }
    .guarantee-item h3 {
      font-size: 1.15rem;
      font-weight: 700;
      color: #ffffff;
      margin-bottom: 10px;
    }
    .guarantee-item p {
      font-size: 0.88rem;
      color: #94a3b8;
      line-height: 1.6;
      margin: 0;
    }

    /* 板块7：常见问题解答 (FAQ) */
    .faq-list {
      max-width: 860px;
      margin: 0 auto;
      display: flex;
      flex-direction: column;
      gap: 16px;
    }
    .faq-item {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 24px 28px;
      box-shadow: var(--shadow-sm);
    }
    .faq-question {
      font-size: 1.05rem;
      font-weight: 700;
      color: var(--primary);
      margin-bottom: 10px;
      display: flex;
      align-items: center;
      gap: 10px;
    }
    .faq-question i {
      color: var(--primary-accent);
    }
    .faq-answer {
      font-size: 0.9rem;
      color: var(--text-muted);
      line-height: 1.7;
      margin: 0;
    }

    /* 板块8：转化表单/申请通道收口 */
    .form-box {
      max-width: 760px;
      margin: 0 auto;
      background: #ffffff;
      border-radius: var(--radius-lg);
      padding: 40px;
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-md);
    }
    .form-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 20px;
      margin-bottom: 20px;
    }
    .form-group {
      display: flex;
      flex-direction: column;
      gap: 6px;
    }
    .form-group.full-width {
      grid-column: span 2;
    }
    .form-group label {
      font-size: 0.85rem;
      font-weight: 700;
      color: var(--primary);
    }
    .form-group input, .form-group select {
      border: 1px solid var(--border-color);
      border-radius: var(--radius-sm);
      padding: 10px 14px;
      font-size: 0.9rem;
      background: #f8fafc;
      outline: none;
      margin: 0;
      transition: var(--transition);
    }
    .form-group input:focus, .form-group select:focus {
      background: #fff;
      border-color: var(--primary-accent);
      box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.12);
    }
    .btn-submit {
      width: 100%;
      background: var(--primary-accent);
      color: #fff;
      border: none;
      padding: 14px;
      border-radius: var(--radius-sm);
      font-size: 1rem;
      font-weight: 700;
      cursor: pointer;
      box-shadow: 0 4px 14px rgba(37, 99, 235, 0.3);
      transition: var(--transition);
      display: flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
    }
    .btn-submit:hover {
      background: #1d4ed8;
      transform: translateY(-1px);
    }

    /* 页脚 */
    .site-footer {
      background: var(--bg-dark);
      color: #94a3b8;
      padding: 60px 0 28px;
      border-top: 1px solid #1e293b;
    }
    .footer-grid {
      display: grid;
      grid-template-columns: 2fr 1fr 1fr 1.5fr;
      gap: 40px;
      margin-bottom: 40px;
    }
    .footer-col h4 {
      color: #ffffff;
      font-size: 1.05rem;
      font-weight: 700;
      margin-bottom: 18px;
    }
    .footer-col ul {
      list-style: none;
      padding: 0;
      margin: 0;
    }
    .footer-col ul li {
      margin-bottom: 10px;
    }
    .footer-col ul a {
      color: #94a3b8;
      font-size: 0.88rem;
    }
    .footer-col ul a:hover {
      color: #60a5fa;
    }
    .footer-bottom {
      border-top: 1px solid rgba(255, 255, 255, 0.08);
      padding-top: 24px;
      text-align: center;
      font-size: 0.84rem;
      color: #64748b;
    }

    /* 响应式断点适配 */
    @media (max-width: 1024px) {
      .metrics-bar-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .milestone-timeline {
        grid-template-columns: repeat(2, 1fr);
      }
      .hero-grid {
        grid-template-columns: 1fr;
      }
      .footer-grid {
        grid-template-columns: 1fr 1fr;
      }
    }
    @media (max-width: 768px) {
      .nav-menu {
        display: none;
      }
      .search-wrapper {
        display: none;
      }
      .mobile-toggle {
        display: block;
      }
      .matrix-cards-grid,
      .news-cards-grid,
      .guarantee-grid {
        grid-template-columns: 1fr;
      }
      .compare-container {
        grid-template-columns: 1fr;
      }
      .form-grid {
        grid-template-columns: 1fr;
      }
      .form-group.full-width {
        grid-column: span 1;
      }
      .hero-content h1 {
        font-size: 2rem;
      }
      .section-header h2 {
        font-size: 1.6rem;
      }
      .footer-grid {
        grid-template-columns: 1fr;
      }
    }

/* roulang page: category2 */
:root {
            --primary: #0f172a;
            --primary-accent: #2563eb;
            --primary-glow: #3b82f6;
            --secondary: #0ea5e9;
            --text-main: #1e293b;
            --text-muted: #64748b;
            --bg-light: #f8fafc;
            --bg-white: #ffffff;
            --bg-dark: #090d16;
            --border-color: #e2e8f0;
            --radius-sm: 6px;
            --radius-md: 12px;
            --radius-lg: 20px;
            --shadow-sm: 0 2px 8px rgba(15, 23, 42, 0.04);
            --shadow-md: 0 8px 24px rgba(15, 23, 42, 0.08);
            --shadow-lg: 0 20px 40px rgba(15, 23, 42, 0.12);
            --transition: all 0.28s cubic-bezier(0.4, 0, 0.2, 1);
        }

        body {
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
            color: var(--text-main);
            background-color: var(--bg-light);
            line-height: 1.65;
            margin: 0;
            padding: 0;
            -webkit-font-smoothing: antialiased;
        }

        /* 顶部导航 - 白底内容平台规范 */
        .site-header {
            background: rgba(255, 255, 255, 0.98);
            backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border-color);
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: var(--shadow-sm);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 72px;
            max-width: 1240px;
            margin: 0 auto;
            padding: 0 20px;
        }
        .brand-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-weight: 800;
            font-size: 1.25rem;
            color: var(--primary);
            text-decoration: none;
            letter-spacing: -0.5px;
        }
        .brand-logo i {
            color: var(--primary-accent);
            font-size: 1.6rem;
        }
        .nav-menu {
            display: flex;
            list-style: none;
            margin: 0;
            padding: 0;
            gap: 28px;
        }
        .nav-menu a {
            color: #334155;
            font-weight: 600;
            font-size: 0.95rem;
            text-decoration: none;
            transition: var(--transition);
            position: relative;
            padding: 6px 0;
        }
        .nav-menu a:hover, .nav-menu a.active {
            color: var(--primary-accent);
        }
        .nav-menu a.active::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 0;
            right: 0;
            height: 2px;
            background: var(--primary-accent);
            border-radius: 2px;
        }
        .header-actions {
            display: flex;
            align-items: center;
            gap: 16px;
        }
        .search-wrapper {
            position: relative;
            display: block;
        }
        .search-wrapper input {
            border: 1px solid var(--border-color);
            border-radius: 99px;
            padding: 8px 16px 8px 36px;
            font-size: 0.85rem;
            width: 190px;
            background: #f1f5f9;
            outline: none;
            margin: 0;
            transition: var(--transition);
        }
        .search-wrapper input:focus {
            background: #fff;
            border-color: var(--primary-accent);
            width: 230px;
            box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.15);
        }
        .search-wrapper i {
            position: absolute;
            left: 14px;
            top: 50%;
            transform: translateY(-50%);
            color: var(--text-muted);
            font-size: 0.85rem;
        }
        .btn-header {
            background: var(--primary-accent);
            color: #fff;
            padding: 9px 20px;
            border-radius: 99px;
            font-size: 0.9rem;
            font-weight: 600;
            text-decoration: none;
            box-shadow: 0 4px 14px rgba(37, 99, 235, 0.3);
            transition: var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }
        .btn-header:hover {
            background: #1d4ed8;
            color: #fff;
            transform: translateY(-1px);
        }
        .mobile-toggle {
            display: none;
            background: none;
            border: none;
            font-size: 1.4rem;
            color: var(--primary);
            cursor: pointer;
        }

        /* 杂志分栏 Hero 特殊定制 */
        .magazine-hero {
            background: linear-gradient(180deg, #ffffff 0%, #f1f5f9 100%);
            border-bottom: 1px solid var(--border-color);
            padding: 56px 0 64px;
            position: relative;
            overflow: hidden;
        }
        .magazine-grid {
            display: grid;
            grid-template-columns: 1.25fr 1fr;
            gap: 40px;
            align-items: center;
        }
        .hero-left h1 {
            font-size: 2.5rem;
            font-weight: 800;
            color: var(--primary);
            line-height: 1.25;
            margin-bottom: 18px;
            letter-spacing: -0.02em;
        }
        .hero-left p.lead-text {
            font-size: 1.08rem;
            color: var(--text-muted);
            margin-bottom: 28px;
            line-height: 1.7;
        }
        .hero-specs-pill {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            margin-bottom: 32px;
        }
        .spec-item {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: #fff;
            padding: 8px 14px;
            border-radius: var(--radius-sm);
            border: 1px solid var(--border-color);
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--text-main);
            box-shadow: var(--shadow-sm);
        }
        .spec-item i {
            color: var(--primary-accent);
        }
        .hero-cta-group {
            display: flex;
            align-items: center;
            gap: 16px;
        }
        .btn-primary {
            background: var(--primary-accent);
            color: #fff;
            padding: 12px 28px;
            border-radius: var(--radius-md);
            font-weight: 700;
            text-decoration: none;
            display: inline-flex;
            align-items: center;
            gap: 8px;
            box-shadow: 0 8px 20px rgba(37, 99, 235, 0.28);
            transition: var(--transition);
        }
        .btn-primary:hover {
            background: #1d4ed8;
            color: #fff;
            transform: translateY(-2px);
        }
        .btn-outline {
            border: 1px solid var(--border-color);
            background: #fff;
            color: var(--text-main);
            padding: 12px 24px;
            border-radius: var(--radius-md);
            font-weight: 600;
            text-decoration: none;
            display: inline-flex;
            align-items: center;
            gap: 8px;
            transition: var(--transition);
        }
        .btn-outline:hover {
            border-color: var(--primary-accent);
            color: var(--primary-accent);
            background: #f8fafc;
        }

        /* 杂志首屏右侧精选卡 */
        .featured-hero-card {
            background: #fff;
            border-radius: var(--radius-lg);
            border: 1px solid var(--border-color);
            box-shadow: var(--shadow-lg);
            padding: 28px;
            position: relative;
        }
        .badge-pulse {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: #ecfdf5;
            color: #059669;
            font-size: 0.78rem;
            font-weight: 700;
            padding: 4px 10px;
            border-radius: 99px;
            margin-bottom: 16px;
        }
        .badge-pulse::before {
            content: '';
            width: 7px;
            height: 7px;
            border-radius: 50%;
            background: #10b981;
            box-shadow: 0 0 0 3px rgba(16, 185, 129, 0.2);
        }
        .hero-card-img-wrap {
            position: relative;
            border-radius: var(--radius-md);
            overflow: hidden;
            margin-bottom: 20px;
            aspect-ratio: 16 / 9;
        }
        .hero-card-img-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            display: block;
        }
        .hero-card-meta {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding-top: 14px;
            border-top: 1px dashed var(--border-color);
        }
        .meta-stat {
            font-size: 0.85rem;
            color: var(--text-muted);
        }
        .meta-stat strong {
            color: var(--text-main);
            font-weight: 700;
            display: block;
            font-size: 1.1rem;
        }

        /* 全局通用板块样式 */
        .content-container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        .section-wrap {
            padding: 72px 0;
            position: relative;
        }
        .section-wrap.alt-bg {
            background: #ffffff;
            border-top: 1px solid var(--border-color);
            border-bottom: 1px solid var(--border-color);
        }
        .section-header {
            margin-bottom: 48px;
        }
        .section-header.text-center {
            text-align: center;
        }
        .section-badge {
            display: inline-block;
            font-size: 0.8rem;
            font-weight: 700;
            text-transform: uppercase;
            letter-spacing: 0.8px;
            padding: 4px 12px;
            border-radius: 99px;
            background: rgba(37, 99, 235, 0.1);
            color: var(--primary-accent);
            margin-bottom: 10px;
        }
        .section-header h2 {
            font-size: 2rem;
            font-weight: 800;
            color: var(--primary);
            line-height: 1.3;
            margin-bottom: 12px;
        }
        .section-header p {
            font-size: 1rem;
            color: var(--text-muted);
            max-width: 680px;
            margin: 0 auto;
        }

        /* 板块1：指标看板 (Metric Dashboard) */
        .metrics-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }
        .metric-card {
            background: #fff;
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            padding: 24px 20px;
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
            position: relative;
            overflow: hidden;
        }
        .metric-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 4px;
            height: 100%;
            background: var(--primary-accent);
            opacity: 0;
            transition: var(--transition);
        }
        .metric-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-md);
        }
        .metric-card:hover::before {
            opacity: 1;
        }
        .metric-card .icon-box {
            width: 44px;
            height: 44px;
            border-radius: 10px;
            background: #eff6ff;
            color: var(--primary-accent);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.2rem;
            margin-bottom: 16px;
        }
        .metric-val {
            font-size: 2.2rem;
            font-weight: 800;
            color: var(--primary);
            line-height: 1.1;
            margin-bottom: 6px;
        }
        .metric-card h3 {
            font-size: 1rem;
            font-weight: 700;
            color: var(--text-main);
            margin-bottom: 6px;
        }
        .metric-card p {
            font-size: 0.85rem;
            color: var(--text-muted);
            margin: 0;
        }

        /* 板块2：服务矩阵 (Service / Mirror Matrix) */
        .mirror-table-wrap {
            background: #fff;
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-sm);
            overflow-x: auto;
        }
        .mirror-table {
            width: 100%;
            border-collapse: collapse;
            text-align: left;
            margin: 0;
        }
        .mirror-table th {
            background: #f8fafc;
            color: var(--text-muted);
            font-size: 0.85rem;
            font-weight: 700;
            padding: 16px 20px;
            border-bottom: 1px solid var(--border-color);
            text-transform: uppercase;
        }
        .mirror-table td {
            padding: 18px 20px;
            border-bottom: 1px solid var(--border-color);
            font-size: 0.92rem;
            vertical-align: middle;
        }
        .mirror-table tr:last-child td {
            border-bottom: none;
        }
        .mirror-name {
            display: flex;
            align-items: center;
            gap: 12px;
            font-weight: 700;
            color: var(--primary);
        }
        .mirror-name i {
            font-size: 1.3rem;
            color: var(--primary-accent);
        }
        .checksum-code {
            font-family: monospace;
            background: #f1f5f9;
            padding: 3px 6px;
            border-radius: 4px;
            font-size: 0.8rem;
            color: #475569;
        }
        .btn-download-sm {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 6px 14px;
            background: #eff6ff;
            color: var(--primary-accent);
            border-radius: var(--radius-sm);
            font-weight: 600;
            font-size: 0.85rem;
            text-decoration: none;
            border: 1px solid #bfdbfe;
            transition: var(--transition);
        }
        .btn-download-sm:hover {
            background: var(--primary-accent);
            color: #fff;
            border-color: var(--primary-accent);
        }

        /* 板块3：结果对比 (Benchmark Comparison) */
        .benchmark-row {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 32px;
            align-items: center;
        }
        .benchmark-card {
            background: #fff;
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            padding: 30px;
            box-shadow: var(--shadow-sm);
        }
        .benchmark-card.highlight {
            border: 2px solid var(--primary-accent);
            background: linear-gradient(180deg, #ffffff 0%, #eff6ff 100%);
            box-shadow: var(--shadow-md);
        }
        .bar-group {
            margin-bottom: 20px;
        }
        .bar-label {
            display: flex;
            justify-content: space-between;
            font-size: 0.88rem;
            font-weight: 600;
            margin-bottom: 8px;
        }
        .progress-track {
            height: 10px;
            background: #e2e8f0;
            border-radius: 99px;
            overflow: hidden;
        }
        .progress-fill {
            height: 100%;
            background: var(--primary-accent);
            border-radius: 99px;
        }
        .progress-fill.warn {
            background: #f59e0b;
        }
        .progress-fill.danger {
            background: #ef4444;
        }

        /* 板块4：里程碑与更新日志 */
        .milestones-track {
            position: relative;
            padding-left: 32px;
        }
        .milestones-track::before {
            content: '';
            position: absolute;
            left: 7px;
            top: 10px;
            bottom: 10px;
            width: 2px;
            background: #cbd5e1;
        }
        .milestone-item {
            position: relative;
            margin-bottom: 32px;
        }
        .milestone-item::before {
            content: '';
            position: absolute;
            left: -32px;
            top: 6px;
            width: 16px;
            height: 16px;
            border-radius: 50%;
            background: #fff;
            border: 3px solid var(--primary-accent);
        }
        .milestone-tag {
            font-size: 0.8rem;
            font-weight: 700;
            color: var(--primary-accent);
            margin-bottom: 4px;
        }
        .milestone-title {
            font-size: 1.15rem;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 8px;
        }
        .milestone-desc {
            font-size: 0.92rem;
            color: var(--text-muted);
            margin: 0;
            line-height: 1.6;
}

        /* 板块5：精选资讯与技术实战列表 */
        .article-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .article-card {
            background: #fff;
            border-radius: var(--radius-md);
            border: 1px solid var(--border-color);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            display: flex;
            flex-direction: column;
            transition: var(--transition);
        }
        .article-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-md);
        }
        .article-thumb {
            position: relative;
            width: 100%;
            aspect-ratio: 16 / 10;
            overflow: hidden;
            background: #0f172a;
        }
        .article-thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.4s ease;
        }
        .article-card:hover .article-thumb img {
            transform: scale(1.05);
        }
        .article-body {
            padding: 22px;
            display: flex;
            flex-direction: column;
            flex-grow: 1;
        }
        .article-meta {
            display: flex;
            align-items: center;
            gap: 12px;
            font-size: 0.8rem;
            color: var(--text-muted);
            margin-bottom: 10px;
        }
        .article-meta span {
            display: inline-flex;
            align-items: center;
            gap: 4px;
        }
        .article-title {
            font-size: 1.12rem;
            font-weight: 700;
            line-height: 1.4;
            color: var(--primary);
            margin-bottom: 12px;
        }
        .article-summary {
            font-size: 0.88rem;
            color: var(--text-muted);
            line-height: 1.6;
            margin-bottom: 18px;
            flex-grow: 1;
        }
        .article-link {
            font-size: 0.88rem;
            font-weight: 700;
            color: var(--primary-accent);
            text-decoration: none;
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }
        .article-link:hover {
            color: #1d4ed8;
            text-decoration: underline;
        }

        /* 板块6：平台安全与镜像交付保障 */
        .guarantee-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .guarantee-card {
            background: #fff;
            padding: 30px 24px;
            border-radius: var(--radius-md);
            border: 1px solid var(--border-color);
            text-align: center;
            transition: var(--transition);
        }
        .guarantee-card:hover {
            border-color: #93c5fd;
            box-shadow: var(--shadow-md);
        }
        .guarantee-icon {
            width: 58px;
            height: 58px;
            margin: 0 auto 18px;
            border-radius: 16px;
            background: #eff6ff;
            color: var(--primary-accent);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.6rem;
        }
        .guarantee-card h3 {
            font-size: 1.15rem;
            font-weight: 700;
            margin-bottom: 10px;
            color: var(--primary);
        }
        .guarantee-card p {
            font-size: 0.88rem;
            color: var(--text-muted);
            line-height: 1.65;
            margin: 0;
        }

        /* 板块7：快速部署交互解答 */
        .code-snippet-box {
            background: #0f172a;
            color: #f8fafc;
            border-radius: var(--radius-md);
            padding: 24px;
            font-family: Consolas, Monaco, monospace;
            position: relative;
            box-shadow: var(--shadow-md);
            margin-top: 14px;
        }
        .code-header {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding-bottom: 12px;
            margin-bottom: 12px;
            border-bottom: 1px solid #334155;
            font-size: 0.82rem;
            color: #94a3b8;
        }
        .code-content {
            font-size: 0.9rem;
            line-height: 1.6;
            color: #38bdf8;
            word-break: break-all;
        }

        /* 板块8：FAQ 常见疑问解答 */
        .faq-accordion {
            max-width: 860px;
            margin: 0 auto;
        }
        .faq-item {
            background: #fff;
            border: 1px solid var(--border-color);
            border-radius: var(--radius-sm);
            margin-bottom: 14px;
            overflow: hidden;
            box-shadow: var(--shadow-sm);
        }
        .faq-question {
            padding: 18px 24px;
            font-weight: 700;
            color: var(--text-main);
            display: flex;
            justify-content: space-between;
            align-items: center;
            cursor: pointer;
            user-select: none;
        }
        .faq-question i {
            color: var(--primary-accent);
            transition: transform 0.2s ease;
        }
        .faq-answer {
            padding: 0 24px 20px;
            font-size: 0.92rem;
            color: var(--text-muted);
            line-height: 1.7;
        }

        /* 板块9：转化表单与加速包直下 */
        .download-action-card {
            background: linear-gradient(135deg, #1e293b 0%, #0f172a 100%);
            border-radius: var(--radius-lg);
            padding: 48px;
            color: #fff;
            box-shadow: var(--shadow-lg);
            position: relative;
            overflow: hidden;
        }
        .action-content {
            position: relative;
            z-index: 2;
            max-width: 640px;
        }
        .download-action-card h2 {
            color: #fff;
            font-size: 2.2rem;
            font-weight: 800;
            margin-bottom: 14px;
        }
        .download-action-card p {
            color: #cbd5e1;
            font-size: 1.05rem;
            margin-bottom: 28px;
        }
        .action-form {
            display: flex;
            gap: 12px;
            flex-wrap: wrap;
        }
        .action-form input {
            flex: 1;
            min-width: 240px;
            padding: 12px 18px;
            border-radius: var(--radius-md);
            border: 1px solid #334155;
            background: rgba(255, 255, 255, 0.08);
            color: #fff;
            outline: none;
            font-size: 0.95rem;
        }
        .action-form input:focus {
            border-color: var(--primary-accent);
            background: rgba(255, 255, 255, 0.15);
        }
        .action-form button {
            background: var(--primary-accent);
            color: #fff;
            padding: 12px 28px;
            border-radius: var(--radius-md);
            font-weight: 700;
            border: none;
            cursor: pointer;
            transition: var(--transition);
        }
        .action-form button:hover {
            background: #1d4ed8;
        }

        /* 页脚统一规范 */
        .site-footer {
            background: #090d16;
            color: #94a3b8;
            padding: 64px 0 32px;
            border-top: 1px solid #1e293b;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1.5fr;
            gap: 40px;
            margin-bottom: 48px;
        }
        .footer-col h4 {
            color: #f1f5f9;
            font-size: 1.05rem;
            font-weight: 700;
            margin-bottom: 20px;
        }
        .footer-col ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .footer-col ul li {
            margin-bottom: 10px;
        }
        .footer-col ul a {
            color: #94a3b8;
            text-decoration: none;
            font-size: 0.9rem;
            transition: var(--transition);
        }
        .footer-col ul a:hover {
            color: #fff;
            padding-left: 4px;
        }
        .footer-bottom {
            padding-top: 28px;
            border-top: 1px solid #1e293b;
            text-align: center;
            font-size: 0.85rem;
            color: #64748b;
        }

        /* 响应式断点 */
        @media (max-width: 1024px) {
            .metrics-grid, .article-grid, .guarantee-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .magazine-grid {
                grid-template-columns: 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
        }
        @media (max-width: 768px) {
            .nav-menu {
                display: none;
            }
            .search-wrapper {
                display: none;
            }
            .mobile-toggle {
                display: block;
            }
            .metrics-grid, .article-grid, .guarantee-grid, .benchmark-row {
                grid-template-columns: 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr;
            }
            .hero-left h1 {
                font-size: 2rem;
            }
            .download-action-card {
                padding: 32px 20px;
            }
        }

/* roulang page: category3 */
:root {
      --primary: #0f172a;
      --primary-accent: #2563eb;
      --primary-glow: #3b82f6;
      --secondary: #0ea5e9;
      --text-main: #1e293b;
      --text-muted: #64748b;
      --bg-light: #f8fafc;
      --bg-white: #ffffff;
      --bg-dark: #090d16;
      --border-color: #e2e8f0;
      --radius-sm: 6px;
      --radius-md: 12px;
      --radius-lg: 20px;
      --shadow-sm: 0 2px 8px rgba(15, 23, 42, 0.04);
      --shadow-md: 0 8px 24px rgba(15, 23, 42, 0.08);
      --shadow-lg: 0 20px 40px rgba(15, 23, 42, 0.12);
      --transition: all 0.28s cubic-bezier(0.4, 0, 0.2, 1);
    }
    body {
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
      color: var(--text-main);
      background-color: var(--bg-light);
      line-height: 1.65;
      margin: 0;
      padding: 0;
      -webkit-font-smoothing: antialiased;
    }
    .site-header {
      background: rgba(255, 255, 255, 0.98);
      backdrop-filter: blur(12px);
      border-bottom: 1px solid var(--border-color);
      position: sticky;
      top: 0;
      z-index: 1000;
      box-shadow: var(--shadow-sm);
    }
    .header-inner {
      display: flex;
      align-items: center;
      justify-content: space-between;
      height: 72px;
      max-width: 1240px;
      margin: 0 auto;
      padding: 0 20px;
    }
    .brand-logo {
      display: flex;
      align-items: center;
      gap: 10px;
      font-weight: 800;
      font-size: 1.25rem;
      color: var(--primary);
      text-decoration: none;
      letter-spacing: -0.5px;
    }
    .brand-logo i {
      color: var(--primary-accent);
      font-size: 1.6rem;
    }
    .nav-menu {
      display: flex;
      list-style: none;
      margin: 0;
      padding: 0;
      gap: 28px;
    }
    .nav-menu a {
      color: #334155;
      font-weight: 600;
      font-size: 0.95rem;
      text-decoration: none;
      transition: var(--transition);
      position: relative;
      padding: 6px 0;
    }
    .nav-menu a:hover, .nav-menu a.active {
      color: var(--primary-accent);
    }
    .nav-menu a.active::after {
      content: '';
      position: absolute;
      bottom: -2px;
      left: 0;
      right: 0;
      height: 2px;
      background: var(--primary-accent);
      border-radius: 2px;
    }
    .header-actions {
      display: flex;
      align-items: center;
      gap: 16px;
    }
    .search-wrapper {
      position: relative;
      display: block;
    }
    .search-wrapper input {
      border: 1px solid var(--border-color);
      border-radius: 99px;
      padding: 8px 16px 8px 36px;
      font-size: 0.85rem;
      width: 190px;
      background: #f1f5f9;
      outline: none;
      margin: 0;
      transition: var(--transition);
      box-shadow: none;
      height: 38px;
    }
    .search-wrapper input:focus {
      background: #fff;
      border-color: var(--primary-accent);
      width: 230px;
      box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.15);
    }
    .search-wrapper i {
      position: absolute;
      left: 14px;
      top: 50%;
      transform: translateY(-50%);
      color: var(--text-muted);
      font-size: 0.85rem;
    }
    .btn-header {
      background: var(--primary-accent);
      color: #fff;
      padding: 9px 20px;
      border-radius: 99px;
      font-size: 0.9rem;
      font-weight: 600;
      text-decoration: none;
      box-shadow: 0 4px 14px rgba(37, 99, 235, 0.3);
      transition: var(--transition);
      display: inline-flex;
      align-items: center;
      gap: 6px;
      border: none;
    }
    .btn-header:hover {
      background: #1d4ed8;
      color: #fff;
      transform: translateY(-1px);
    }
    .mobile-toggle {
      display: none;
      background: none;
      border: none;
      font-size: 1.4rem;
      color: var(--primary);
      cursor: pointer;
      padding: 4px;
    }

    /* 蓝图：沉浸式活动 KV 与倒计时条 */
    .hero-immersive-kv {
      position: relative;
      background: url('/assets/images/9f93d06f91d55dd9.webp') center/cover no-repeat;
      padding: 70px 20px 80px;
      color: #fff;
      border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    }
    .hero-kv-mask {
      position: absolute;
      inset: 0;
      background: linear-gradient(135deg, rgba(15, 23, 42, 0.94) 0%, rgba(9, 13, 22, 0.96) 100%);
    }
    .hero-kv-container {
      position: relative;
      z-index: 2;
      max-width: 1200px;
      margin: 0 auto;
    }
    .countdown-bar {
      display: inline-flex;
      align-items: center;
      gap: 12px;
      background: rgba(37, 99, 235, 0.25);
      border: 1px solid rgba(59, 130, 246, 0.4);
      padding: 8px 20px;
      border-radius: 99px;
      font-size: 0.88rem;
      margin-bottom: 24px;
    }
    .countdown-timer {
      font-weight: 700;
      color: #60a5fa;
      letter-spacing: 1px;
    }
    .hero-kv-container h1 {
      font-size: 2.7rem;
      font-weight: 800;
      line-height: 1.25;
      margin-bottom: 18px;
      color: #ffffff;
      letter-spacing: -0.5px;
    }
    .hero-kv-summary {
      font-size: 1.12rem;
      color: #cbd5e1;
      max-width: 820px;
      line-height: 1.8;
      margin-bottom: 32px;
    }
    .hero-kv-actions {
      display: flex;
      gap: 16px;
      flex-wrap: wrap;
    }
    .btn-act-primary {
      background: #2563eb;
      color: #fff;
      padding: 13px 28px;
      border-radius: 8px;
      font-weight: 700;
      display: inline-flex;
      align-items: center;
      gap: 8px;
      transition: var(--transition);
      box-shadow: 0 4px 16px rgba(37, 99, 235, 0.4);
    }
    .btn-act-primary:hover {
      background: #1d4ed8;
      color: #fff;
      transform: translateY(-2px);
    }
    .btn-act-secondary {
      background: rgba(255, 255, 255, 0.1);
      color: #fff;
      padding: 13px 26px;
      border-radius: 8px;
      font-weight: 600;
      display: inline-flex;
      align-items: center;
      gap: 8px;
      border: 1px solid rgba(255, 255, 255, 0.25);
      transition: var(--transition);
    }
    .btn-act-secondary:hover {
      background: rgba(255, 255, 255, 0.2);
      color: #fff;
    }

    /* 布局与通用板块 */
    .section-wrap {
      padding: 70px 0;
      position: relative;
    }
    .section-wrap.alt-bg {
      background: #ffffff;
      border-top: 1px solid var(--border-color);
      border-bottom: 1px solid var(--border-color);
    }
    .section-wrap.dark-bg {
      background: var(--bg-dark);
      color: #e2e8f0;
    }
    .content-container {
      max-width: 1200px;
      margin: 0 auto;
      padding: 0 20px;
    }
    .section-header {
      margin-bottom: 45px;
    }
    .section-badge {
      display: inline-block;
      font-size: 0.8rem;
      font-weight: 700;
      text-transform: uppercase;
      letter-spacing: 1px;
      padding: 4px 14px;
      border-radius: 99px;
      background: rgba(37, 99, 235, 0.1);
      color: var(--primary-accent);
      margin-bottom: 12px;
    }
    .dark-bg .section-badge {
      background: rgba(37, 99, 235, 0.25);
      color: #60a5fa;
    }
    .section-header h2 {
      font-size: 2.1rem;
      font-weight: 800;
      color: var(--primary);
      margin-bottom: 14px;
      line-height: 1.3;
    }
    .dark-bg .section-header h2 {
      color: #ffffff;
    }
    .section-header p {
      font-size: 1.05rem;
      color: var(--text-muted);
      max-width: 780px;
      margin: 0;
    }
    .dark-bg .section-header p {
      color: #94a3b8;
    }

    /* 板块 1: 指标看板 (Dashboard Stats) */
    .stats-matrix-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
    }
    .stat-card {
      background: var(--bg-white);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 28px 24px;
      box-shadow: var(--shadow-sm);
      transition: var(--transition);
      position: relative;
      overflow: hidden;
    }
    .stat-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-md);
      border-color: var(--primary-glow);
    }
    .stat-card::after {
      content: '';
      position: absolute;
      top: 0;
      left: 0;
      width: 4px;
      height: 100%;
      background: var(--primary-accent);
    }
    .stat-top {
      display: flex;
      justify-content: space-between;
      align-items: center;
      margin-bottom: 14px;
    }
    .stat-num {
      font-size: 2.3rem;
      font-weight: 800;
      color: var(--primary);
      line-height: 1;
    }
    .stat-icon {
      font-size: 1.5rem;
      color: var(--primary-accent);
      background: rgba(37, 99, 235, 0.08);
      width: 44px;
      height: 44px;
      border-radius: 10px;
      display: flex;
      align-items: center;
      justify-content: center;
    }
    .stat-label {
      font-size: 1rem;
      font-weight: 700;
      color: #334155;
      margin-bottom: 6px;
    }
    .stat-desc {
      font-size: 0.85rem;
      color: var(--text-muted);
      margin: 0;
    }

    /* 板块 2: 服务矩阵 (Keep-Alive Matrix) */
    .matrix-split-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }
    .matrix-box {
      background: #fff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 30px;
      display: flex;
      flex-direction: column;
      box-shadow: var(--shadow-sm);
      transition: var(--transition);
    }
    .matrix-box:hover {
      box-shadow: var(--shadow-md);
      border-color: var(--secondary);
    }
    .matrix-box-header {
      display: flex;
      align-items: center;
      gap: 14px;
      margin-bottom: 18px;
    }
    .matrix-box-icon {
      font-size: 1.4rem;
      width: 48px;
      height: 48px;
      border-radius: 8px;
      background: rgba(14, 165, 233, 0.1);
      color: var(--secondary);
      display: flex;
      align-items: center;
      justify-content: center;
      flex-shrink: 0;
    }
    .matrix-box h3 {
      font-size: 1.25rem;
      font-weight: 700;
      margin: 0;
      color: var(--primary);
    }
    .matrix-box p {
      font-size: 0.92rem;
      color: var(--text-muted);
      margin-bottom: 20px;
      line-height: 1.6;
    }
    .matrix-code-snippet {
      background: #0f172a;
      color: #38bdf8;
      padding: 12px 14px;
      border-radius: 6px;
      font-family: Consolas, Monaco, monospace;
      font-size: 0.82rem;
      margin-top: auto;
      overflow-x: auto;
      border: 1px solid #1e293b;
    }

    /* 板块 3: 结果对比 (Visual Benchmark) */
    .compare-wrapper {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 30px;
    }
    .compare-side {
      background: #ffffff;
      border-radius: var(--radius-md);
      padding: 36px;
      border: 1px solid var(--border-color);
    }
    .compare-side.pro-side {
      border: 2px solid var(--primary-accent);
      background: #f0f7ff;
      position: relative;
    }
    .compare-side.pro-side::before {
      content: '官方推荐保活标准';
      position: absolute;
      top: -12px;
      right: 24px;
      background: var(--primary-accent);
      color: #fff;
      font-size: 0.75rem;
      font-weight: 700;
      padding: 4px 12px;
      border-radius: 99px;
    }
    .compare-title {
      font-size: 1.3rem;
      font-weight: 700;
      margin-bottom: 16px;
      display: flex;
      align-items: center;
      gap: 10px;
    }
    .compare-list {
      list-style: none;
      margin: 0;
      padding: 0;
    }
    .compare-list li {
      padding: 12px 0;
      border-bottom: 1px dashed rgba(0,0,0,0.08);
      display: flex;
      align-items: flex-start;
      gap: 10px;
      font-size: 0.95rem;
    }
    .compare-list li:last-child {
      border-bottom: none;
    }
    .compare-list li i.fa-check-circle {
      color: #10b981;
      margin-top: 4px;
    }
    .compare-list li i.fa-circle-xmark {
      color: #ef4444;
      margin-top: 4px;
    }

    /* 板块 4: 里程碑 (Timeline / Milestones) */
    .milestone-stepper {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
      position: relative;
    }
    .step-box {
      background: #fff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 24px;
      position: relative;
      box-shadow: var(--shadow-sm);
    }
    .step-tag {
      font-size: 0.75rem;
      font-weight: 800;
      color: var(--primary-accent);
      background: rgba(37, 99, 235, 0.1);
      padding: 4px 10px;
      border-radius: 4px;
      display: inline-block;
      margin-bottom: 12px;
    }
    .step-box h3 {
      font-size: 1.15rem;
      font-weight: 700;
      color: var(--primary);
      margin-bottom: 10px;
    }
    .step-box p {
      font-size: 0.88rem;
      color: var(--text-muted);
      line-height: 1.6;
      margin: 0;
    }

    /* 板块 5: 资讯与技术要点 (News/Articles) */
    .article-cards-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }
    .news-card {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      overflow: hidden;
      box-shadow: var(--shadow-sm);
      display: flex;
      flex-direction: column;
      transition: var(--transition);
    }
    .news-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-md);
    }
    .news-thumb {
      height: 180px;
      width: 100%;
      object-fit: cover;
      display: block;
    }
    .news-body {
      padding: 22px;
      flex: 1;
      display: flex;
      flex-direction: column;
    }
    .news-meta {
      font-size: 0.8rem;
      color: var(--text-muted);
      display: flex;
      align-items: center;
      gap: 12px;
      margin-bottom: 10px;
    }
    .news-body h3 {
      font-size: 1.15rem;
      font-weight: 700;
      color: var(--primary);
      margin-bottom: 10px;
      line-height: 1.4;
    }
    .news-body p {
      font-size: 0.88rem;
      color: var(--text-muted);
      margin-bottom: 16px;
      line-height: 1.6;
      flex: 1;
    }
    .news-foot-btn {
      color: var(--primary-accent);
      font-weight: 600;
      font-size: 0.88rem;
      display: inline-flex;
      align-items: center;
      gap: 6px;
    }

    /* 板块 6: 平台保全保障 (Platform Guarantee) */
    .guarantee-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }
    .guarantee-item {
      background: rgba(255, 255, 255, 0.05);
      border: 1px solid rgba(255, 255, 255, 0.12);
      border-radius: var(--radius-md);
      padding: 28px;
      backdrop-filter: blur(8px);
    }
    .guarantee-item i {
      font-size: 2rem;
      color: var(--secondary);
      margin-bottom: 16px;
      display: inline-block;
    }
    .guarantee-item h3 {
      font-size: 1.2rem;
      font-weight: 700;
      color: #ffffff;
      margin-bottom: 10px;
    }
    .guarantee-item p {
      font-size: 0.9rem;
      color: #94a3b8;
      line-height: 1.6;
      margin: 0;
    }

    /* 板块 7: FAQ 快速解答 (FAQ) */
    .faq-accordion {
      max-width: 920px;
      margin: 0 auto;
    }
    .faq-box {
      background: #ffffff;
      border: 1px solid var(--border-color;
      border-radius: var(--radius-md);
      margin-bottom: 16px;
      overflow: hidden;
      box-shadow: var(--shadow-sm);
    }
    .faq-q {
      padding: 20px 24px;
      font-size: 1.05rem;
      font-weight: 700;
      color: var(--primary);
      cursor: pointer;
      display: flex;
      justify-content: space-between;
      align-items: center;
      background: #ffffff;
      transition: var(--transition);
    }
    .faq-q:hover {
      background: #f8fafc;
      color: var(--primary-accent);
    }
    .faq-a {
      padding: 0 24px 22px;
      color: var(--text-muted);
      font-size: 0.95rem;
      line-height: 1.75;
      border-top: 1px solid #f1f5f9;
      background: #fafcff;
    }

    /* 板块 8: 自动化部署转化表单 (Conversion Form) */
    .form-wrapper {
      max-width: 820px;
      margin: 0 auto;
      background: #ffffff;
      border-radius: var(--radius-lg);
      padding: 40px;
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-lg);
    }
    .form-title {
      text-align: center;
      margin-bottom: 28px;
    }
    .form-title h3 {
      font-size: 1.6rem;
      font-weight: 800;
      color: var(--primary);
      margin-bottom: 8px;
    }
    .form-title p {
      color: var(--text-muted);
      font-size: 0.95rem;
      margin: 0;
    }
    .form-row {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 20px;
      margin-bottom: 18px;
    }
    .form-group {
      margin-bottom: 18px;
    }
    .form-group label {
      display: block;
      font-size: 0.88rem;
      font-weight: 700;
      color: #334155;
      margin-bottom: 8px;
    }
    .form-group input, .form-group select {
      width: 100%;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-sm);
      padding: 12px 14px;
      font-size: 0.92rem;
      background: #f8fafc;
      transition: var(--transition);
      outline: none;
      box-sizing: border-box;
      height: 46px;
    }
    .form-group input:focus, .form-group select:focus {
      background: #fff;
      border-color: var(--primary-accent);
      box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.15);
    }
    .btn-submit-form {
      width: 100%;
      background: var(--primary-accent);
      color: #fff;
      padding: 14px;
      border-radius: var(--radius-sm);
      font-size: 1rem;
      font-weight: 700;
      border: none;
      cursor: pointer;
      box-shadow: 0 4px 14px rgba(37, 99, 235, 0.35);
      transition: var(--transition);
    }
    .btn-submit-form:hover {
      background: #1d4ed8;
      transform: translateY(-2px);
    }

    /* 页脚 */
    .site-footer {
      background: #090d16;
      color: #94a3b8;
      padding: 70px 0 30px;
      border-top: 1px solid #1e293b;
    }
    .footer-grid {
      display: grid;
      grid-template-columns: 2fr 1fr 1fr 1.5fr;
      gap: 40px;
      margin-bottom: 50px;
    }
    .footer-col h4 {
      color: #f8fafc;
      font-size: 1.05rem;
      font-weight: 700;
      margin-bottom: 20px;
    }
    .footer-col ul {
      list-style: none;
      padding: 0;
      margin: 0;
    }
    .footer-col ul li {
      margin-bottom: 12px;
    }
    .footer-col ul li a {
      color: #94a3b8;
      text-decoration: none;
      font-size: 0.9rem;
      transition: var(--transition);
    }
    .footer-col ul li a:hover {
      color: #60a5fa;
      padding-left: 4px;
    }
    .footer-bottom {
      text-align: center;
      padding-top: 24px;
      border-top: 1px solid rgba(255, 255, 255, 0.08);
      font-size: 0.85rem;
      color: #64748b;
    }

    /* 响应式断点 */
    @media (max-width: 1024px) {
      .stats-matrix-grid { grid-template-columns: repeat(2, 1fr); }
      .milestone-stepper { grid-template-columns: repeat(2, 1fr); }
      .footer-grid { grid-template-columns: 1fr 1fr; }
    }
    @media (max-width: 768px) {
      .nav-menu { display: none; }
      .mobile-toggle { display: block; }
      .hero-kv-container h1 { font-size: 2rem; }
      .matrix-split-grid, .article-cards-grid, .guarantee-grid { grid-template-columns: 1fr; }
      .compare-wrapper { grid-template-columns: 1fr; }
      .form-row { grid-template-columns: 1fr; }
      .stats-matrix-grid { grid-template-columns: 1fr; }
      .milestone-stepper { grid-template-columns: 1fr; }
      .search-wrapper { display: none; }
      .footer-grid { grid-template-columns: 1fr; }
    }

/* roulang page: category4 */
:root {
      --primary: #0f172a;
      --primary-accent: #2563eb;
      --primary-glow: #3b82f6;
      --secondary: #0ea5e9;
      --text-main: #1e293b;
      --text-muted: #64748b;
      --bg-light: #f8fafc;
      --bg-white: #ffffff;
      --bg-dark: #090d16;
      --border-color: #e2e8f0;
      --radius-sm: 6px;
      --radius-md: 12px;
      --radius-lg: 20px;
      --shadow-sm: 0 2px 8px rgba(15, 23, 42, 0.04);
      --shadow-md: 0 8px 24px rgba(15, 23, 42, 0.08);
      --shadow-lg: 0 20px 40px rgba(15, 23, 42, 0.12);
      --transition: all 0.28s cubic-bezier(0.4, 0, 0.2, 1);
    }
    body {
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
      color: var(--text-main);
      background-color: var(--bg-light);
      line-height: 1.65;
      margin: 0;
      padding: 0;
      -webkit-font-smoothing: antialiased;
    }
    a { color: var(--primary-accent); text-decoration: none; transition: var(--transition); }
    a:hover { color: #1d4ed8; }
    
    /* 顶部导航 */
    .site-header {
      background: rgba(255, 255, 255, 0.98);
      backdrop-filter: blur(12px);
      border-bottom: 1px solid var(--border-color);
      position: sticky;
      top: 0;
      z-index: 1000;
      box-shadow: var(--shadow-sm);
    }
    .header-inner {
      display: flex;
      align-items: center;
      justify-content: space-between;
      height: 72px;
      max-width: 1240px;
      margin: 0 auto;
      padding: 0 20px;
    }
    .brand-logo {
      display: flex;
      align-items: center;
      gap: 10px;
      font-weight: 800;
      font-size: 1.25rem;
      color: var(--primary);
      text-decoration: none;
      letter-spacing: -0.5px;
    }
    .brand-logo i {
      color: var(--primary-accent);
      font-size: 1.6rem;
    }
    .nav-menu {
      display: flex;
      list-style: none;
      margin: 0;
      padding: 0;
      gap: 28px;
    }
    .nav-menu a {
      color: #334155;
      font-weight: 600;
      font-size: 0.95rem;
      text-decoration: none;
      transition: var(--transition);
      position: relative;
      padding: 6px 0;
    }
    .nav-menu a:hover, .nav-menu a.active {
      color: var(--primary-accent);
    }
    .nav-menu a.active::after {
      content: '';
      position: absolute;
      bottom: -2px;
      left: 0;
      right: 0;
      height: 2px;
      background: var(--primary-accent);
      border-radius: 2px;
    }
    .header-actions {
      display: flex;
      align-items: center;
      gap: 16px;
    }
    .search-wrapper {
      position: relative;
      display: block;
    }
    .search-wrapper input {
      border: 1px solid var(--border-color);
      border-radius: 99px;
      padding: 8px 16px 8px 36px;
      font-size: 0.85rem;
      width: 190px;
      background: #f1f5f9;
      outline: none;
      margin: 0;
      transition: var(--transition);
    }
    .search-wrapper input:focus {
      background: #fff;
      border-color: var(--primary-accent);
      width: 230px;
      box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.15);
    }
    .search-wrapper i {
      position: absolute;
      left: 14px;
      top: 50%;
      transform: translateY(-50%);
      color: var(--text-muted);
      font-size: 0.85rem;
    }
    .btn-header {
      background: var(--primary-accent);
      color: #fff;
      padding: 9px 20px;
      border-radius: 99px;
      font-size: 0.9rem;
      font-weight: 600;
      text-decoration: none;
      box-shadow: 0 4px 14px rgba(37, 99, 235, 0.3);
      transition: var(--transition);
      display: inline-flex;
      align-items: center;
      gap: 6px;
    }
    .btn-header:hover {
      background: #1d4ed8;
      color: #fff;
      transform: translateY(-1px);
    }
    .mobile-toggle {
      display: none;
      background: none;
      border: none;
      font-size: 1.4rem;
      color: var(--primary);
      cursor: pointer;
    }

    /* 布局通用 */
    .content-container {
      max-width: 1200px;
      margin: 0 auto;
      padding: 0 20px;
    }
    .section-wrap {
      padding: 72px 0;
      position: relative;
    }
    .section-wrap.alt-bg {
      background: #ffffff;
      border-top: 1px solid var(--border-color);
      border-bottom: 1px solid var(--border-color);
    }
    .section-wrap.dark-bg {
      background: var(--bg-dark);
      color: #e2e8f0;
    }
    .section-header {
      margin-bottom: 48px;
    }
    .section-header.text-center {
      text-align: center;
    }
    .section-badge {
      display: inline-block;
      font-size: 0.8rem;
      font-weight: 700;
      text-transform: uppercase;
      letter-spacing: 1px;
      padding: 4px 14px;
      border-radius: 99px;
      background: rgba(37, 99, 235, 0.1);
      color: var(--primary-accent);
      margin-bottom: 12px;
    }
    .section-badge.badge-dark {
      background: rgba(59, 130, 246, 0.2);
      color: #60a5fa;
      border: 1px solid rgba(59, 130, 246, 0.3);
    }
    .section-header h2 {
      font-size: 2.1rem;
      font-weight: 800;
      color: var(--primary);
      margin-bottom: 14px;
      line-height: 1.3;
    }
    .section-wrap.dark-bg .section-header h2 {
      color: #ffffff;
    }
    .section-header p {
      font-size: 1.05rem;
      color: var(--text-muted);
      max-width: 760px;
      margin: 0;
    }
    .section-header.text-center p {
      margin: 0 auto;
    }
    .section-wrap.dark-bg .section-header p {
      color: #94a3b8;
    }

    /* 任务蓝图：Hero 线索获客提问式首屏（痛点一句 + 表单入口） */
    .hero-lead-inquiry {
      background: linear-gradient(180deg, #ffffff 0%, #f1f5f9 100%);
      padding: 64px 0 80px;
      border-bottom: 1px solid var(--border-color);
    }
    .lead-box-grid {
      display: grid;
      grid-template-columns: 1.15fr 0.85fr;
      gap: 48px;
      align-items: center;
    }
    .lead-text-side h1 {
      font-size: 2.5rem;
      font-weight: 900;
      line-height: 1.25;
      color: var(--primary);
      margin-bottom: 18px;
    }
    .lead-pain-point {
      font-size: 1.2rem;
      font-weight: 600;
      color: #dc2626;
      display: flex;
      align-items: center;
      gap: 10px;
      margin-bottom: 20px;
      background: #fef2f2;
      padding: 10px 18px;
      border-radius: var(--radius-sm);
      border-left: 4px solid #dc2626;
    }
    .lead-desc {
      font-size: 1.02rem;
      color: var(--text-muted);
      line-height: 1.75;
      margin-bottom: 24px;
    }
    .lead-highlights {
      display: flex;
      flex-wrap: wrap;
      gap: 16px;
    }
    .lead-hl-item {
      display: flex;
      align-items: center;
      gap: 8px;
      font-size: 0.9rem;
      font-weight: 600;
      color: var(--primary);
    }
    .lead-hl-item i {
      color: #10b981;
    }
    .lead-form-card {
      background: #ffffff;
      border-radius: var(--radius-lg);
      padding: 32px;
      box-shadow: var(--shadow-lg);
      border: 1px solid var(--border-color);
      position: relative;
    }
    .lead-form-card h3 {
      font-size: 1.35rem;
      font-weight: 800;
      margin-bottom: 8px;
      color: var(--primary);
    }
    .lead-form-card p {
      font-size: 0.88rem;
      color: var(--text-muted);
      margin-bottom: 20px;
    }
    .form-group {
      margin-bottom: 16px;
    }
    .form-group label {
      display: block;
      font-size: 0.85rem;
      font-weight: 700;
      color: var(--primary);
      margin-bottom: 6px;
    }
    .form-control-custom {
      width: 100%;
      height: 44px;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-sm);
      padding: 0 14px;
      font-size: 0.9rem;
      background: #f8fafc;
      transition: var(--transition);
      box-sizing: border-box;
    }
    .form-control-custom:focus {
      outline: none;
      background: #ffffff;
      border-color: var(--primary-accent);
      box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.12);
    }
    .btn-submit-lead {
      width: 100%;
      height: 46px;
      background: var(--primary-accent);
      color: #ffffff;
      border: none;
      border-radius: var(--radius-sm);
      font-weight: 700;
      font-size: 0.98rem;
      cursor: pointer;
      transition: var(--transition);
      display: flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      margin-top: 10px;
    }
    .btn-submit-lead:hover {
      background: #1d4ed8;
      box-shadow: 0 6px 18px rgba(37, 99, 235, 0.35);
    }

    /* 变体板块1：指标看板 */
    .metrics-dashboard-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
    }
    .metric-card {
      background: #ffffff;
      border-radius: var(--radius-md);
      padding: 24px;
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-sm);
      transition: var(--transition);
      position: relative;
      overflow: hidden;
    }
    .metric-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-md);
      border-color: #cbd5e1;
    }
    .metric-card::before {
      content: '';
      position: absolute;
      top: 0;
      left: 0;
      right: 0;
      height: 3px;
      background: var(--primary-accent);
    }
    .metric-card.accent-purple::before { background: #8b5cf6; }
    .metric-card.accent-green::before { background: #10b981; }
    .metric-card.accent-amber::before { background: #f59e0b; }
    .metric-num {
      font-size: 2.2rem;
      font-weight: 900;
      color: var(--primary);
      line-height: 1.1;
      margin-bottom: 6px;
    }
    .metric-label {
      font-size: 0.9rem;
      font-weight: 700;
      color: var(--text-muted);
      margin-bottom: 12px;
    }
    .metric-delta {
      font-size: 0.82rem;
      display: flex;
      align-items: center;
      gap: 6px;
      color: #10b981;
      background: #ecfdf5;
      padding: 4px 8px;
      border-radius: var(--radius-sm);
      width: fit-content;
    }

    /* 变体板块2：服务矩阵 (卡片 + 榜单排位) */
    .matrix-showcase {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }
    .matrix-card {
      background: #ffffff;
      border-radius: var(--radius-md);
      border: 1px solid var(--border-color);
      overflow: hidden;
      display: flex;
      flex-direction: column;
      box-shadow: var(--shadow-sm);
      transition: var(--transition);
    }
    .matrix-card:hover {
      box-shadow: var(--shadow-md);
      border-color: var(--primary-glow);
    }
    .matrix-card-thumb {
      height: 180px;
      width: 100%;
      object-fit: cover;
      border-bottom: 1px solid var(--border-color);
    }
    .matrix-card-body {
      padding: 24px;
      flex-grow: 1;
      display: flex;
      flex-direction: column;
    }
    .matrix-tag {
      font-size: 0.75rem;
      font-weight: 700;
      padding: 3px 8px;
      border-radius: 4px;
      background: #eff6ff;
      color: var(--primary-accent);
      margin-bottom: 12px;
      width: fit-content;
    }
    .matrix-card-body h3 {
      font-size: 1.25rem;
      font-weight: 800;
      color: var(--primary);
      margin-bottom: 10px;
    }
    .matrix-card-body p {
      font-size: 0.9rem;
      color: var(--text-muted);
      line-height: 1.6;
      margin-bottom: 20px;
      flex-grow: 1;
    }
    .matrix-specs-list {
      list-style: none;
      padding: 0;
      margin: 0 0 20px;
      border-top: 1px dashed var(--border-color);
      padding-top: 16px;
    }
    .matrix-specs-list li {
      font-size: 0.85rem;
      display: flex;
      justify-content: space-between;
      margin-bottom: 8px;
      color: #475569;
    }
    .matrix-specs-list li span:last-child {
      font-weight: 700;
      color: var(--primary);
    }
    .btn-matrix {
      display: block;
      text-align: center;
      background: #f1f5f9;
      color: var(--primary);
      font-weight: 700;
      padding: 10px;
      border-radius: var(--radius-sm);
      font-size: 0.88rem;
      transition: var(--transition);
    }
    .btn-matrix:hover {
      background: var(--primary-accent);
      color: #fff;
    }

    /* 变体板块3：结果对比 (非传统纯表格，深度对比栏) */
    .compare-board {
      background: #ffffff;
      border-radius: var(--radius-lg);
      border: 1px solid var(--border-color);
      overflow: hidden;
      box-shadow: var(--shadow-md);
    }
    .compare-header-row {
      display: grid;
      grid-template-columns: 2fr 1.2fr 1.2fr 1.2fr 1.2fr;
      background: #f8fafc;
      padding: 18px 24px;
      border-bottom: 1px solid var(--border-color);
      font-weight: 800;
      font-size: 0.92rem;
      color: var(--primary);
    }
    .compare-item-row {
      display: grid;
      grid-template-columns: 2fr 1.2fr 1.2fr 1.2fr 1.2fr;
      padding: 20px 24px;
      border-bottom: 1px solid var(--border-color);
      align-items: center;
      font-size: 0.9rem;
      transition: var(--transition);
    }
    .compare-item-row:last-child { border-bottom: none; }
    .compare-item-row:hover { background: #f8fafc; }
    .compare-provider-name {
      display: flex;
      align-items: center;
      gap: 12px;
    }
    .compare-badge-rank {
      width: 26px;
      height: 26px;
      border-radius: 50%;
      background: #e2e8f0;
      color: var(--primary);
      font-weight: 800;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 0.8rem;
    }
    .compare-badge-rank.gold { background: #fef3c7; color: #b45309; }
    .compare-badge-rank.silver { background: #e0f2fe; color: #0369a1; }
    .compare-score {
      font-weight: 800;
      color: var(--primary-accent);
    }
    .progress-bar-wrap {
      width: 100%;
      background: #e2e8f0;
      height: 6px;
      border-radius: 3px;
      margin-top: 6px;
      overflow: hidden;
    }
    .progress-fill {
      background: var(--primary-accent);
      height: 100%;
      border-radius: 3px;
    }

    /* 变体板块4：里程碑 (极简时间线) */
    .timeline-stream {
      position: relative;
      max-width: 860px;
      margin: 0 auto;
      padding-left: 36px;
    }
    .timeline-stream::before {
      content: '';
      position: absolute;
      left: 11px;
      top: 10px;
      bottom: 10px;
      width: 2px;
      background: var(--border-color);
    }
    .timeline-node {
      position: relative;
      margin-bottom: 40px;
    }
    .timeline-node:last-child { margin-bottom: 0; }
    .timeline-dot {
      position: absolute;
      left: -36px;
      top: 4px;
      width: 24px;
      height: 24px;
      border-radius: 50%;
      background: #ffffff;
      border: 3px solid var(--primary-accent);
      box-shadow: 0 0 0 4px #eff6ff;
    }
    .timeline-content {
      background: #ffffff;
      padding: 22px 26px;
      border-radius: var(--radius-md);
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-sm);
    }
    .timeline-date {
      font-size: 0.82rem;
      font-weight: 700;
      color: var(--primary-accent);
      margin-bottom: 6px;
    }
    .timeline-content h4 {
      font-size: 1.15rem;
      font-weight: 800;
      color: var(--primary);
      margin-bottom: 8px;
    }
    .timeline-content p {
      font-size: 0.9rem;
      color: var(--text-muted);
      line-height: 1.65;
      margin: 0;
    }

    /* 变体板块5：资讯与测评实录列表 */
    .news-report-grid {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 28px;
    }
    .report-card {
      background: #ffffff;
      border-radius: var(--radius-md);
      border: 1px solid var(--border-color);
      display: flex;
      gap: 20px;
      padding: 20px;
      transition: var(--transition);
      align-items: center;
    }
    .report-card:hover {
      box-shadow: var(--shadow-md);
      border-color: #cbd5e1;
    }
    .report-thumb {
      width: 140px;
      height: 110px;
      object-fit: cover;
      border-radius: var(--radius-sm);
      flex-shrink: 0;
    }
    .report-info h4 {
      font-size: 1.05rem;
      font-weight: 700;
      color: var(--primary);
      margin-bottom: 6px;
      line-height: 1.4;
    }
    .report-info p {
      font-size: 0.84rem;
      color: var(--text-muted);
      line-height: 1.6;
      margin-bottom: 8px;
      display: -webkit-box;
      -webkit-line-clamp: 2;
      -webkit-box-orient: vertical;
      overflow: hidden;
    }
    .report-meta {
      font-size: 0.78rem;
      color: #94a3b8;
      display: flex;
      gap: 12px;
    }

    /* 变体板块6：平台保障 (3大深色底合规与性能盾牌) */
    .guarantee-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }
    .guarantee-box {
      background: #131b2e;
      border: 1px solid #1e293b;
      padding: 30px;
      border-radius: var(--radius-md);
      transition: var(--transition);
    }
    .guarantee-box:hover {
      border-color: var(--primary-accent);
      transform: translateY(-4px);
    }
    .guarantee-icon {
      font-size: 2.2rem;
      color: var(--secondary);
      margin-bottom: 20px;
    }
    .guarantee-box h3 {
      font-size: 1.2rem;
      font-weight: 700;
      color: #ffffff;
      margin-bottom: 12px;
    }
    .guarantee-box p {
      font-size: 0.88rem;
      color: #94a3b8;
      line-height: 1.7;
      margin: 0;
    }

    /* 变体板块7：快速解答 (交互式痛点快速排查) */
    .quick-faq-grid {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 20px;
    }
    .quick-faq-card {
      background: #ffffff;
      padding: 24px;
      border-radius: var(--radius-md);
      border: 1px solid var(--border-color);
    }
    .quick-faq-card h4 {
      font-size: 1.05rem;
      font-weight: 800;
      color: var(--primary);
      margin-bottom: 10px;
      display: flex;
      align-items: center;
      gap: 10px;
    }
    .quick-faq-card h4 i {
      color: var(--primary-accent);
      font-size: 0.95rem;
    }
    .quick-faq-card p {
      font-size: 0.88rem;
      color: var(--text-muted);
      line-height: 1.7;
      margin: 0;
    }

    /* 变体板块8：FAQ (深度折叠/标准回答) */
    .faq-accordion-wrap {
      max-width: 900px;
      margin: 0 auto;
    }
    .faq-item {
      background: #ffffff;
      border-radius: var(--radius-md);
      border: 1px solid var(--border-color);
      margin-bottom: 16px;
      overflow: hidden;
    }
    .faq-question {
      padding: 20px 24px;
      font-size: 1.05rem;
      font-weight: 700;
      color: var(--primary);
      display: flex;
      justify-content: space-between;
      align-items: center;
      cursor: pointer;
    }
    .faq-question i {
      color: var(--text-muted);
      transition: var(--transition);
    }
    .faq-answer {
      padding: 0 24px 20px;
      font-size: 0.9rem;
      color: var(--text-muted);
      line-height: 1.75;
      border-top: 1px solid#f1f5f9;
      margin-top: 6px;
      padding-top: 14px;
    }

    /* 变体板块9：转化表单 */
    .conversion-banner {
      background: linear-gradient(135deg, #0f172a 0%, #1e293b 100%);
      border-radius: var(--radius-lg);
      padding: 48px;
      color: #ffffff;
      box-shadow: var(--shadow-lg);
      position: relative;
      overflow: hidden;
      border: 1px solid #334155;
    }
    .conversion-banner-grid {
      display: grid;
      grid-template-columns: 1.2fr 0.8fr;
      gap: 40px;
      align-items: center;
      position: relative;
      z-index: 2;
    }
    .conversion-text h2 {
      font-size: 2rem;
      font-weight: 800;
      color: #ffffff;
      margin-bottom: 14px;
    }
    .conversion-text p {
      color: #94a3b8;
      font-size: 0.98rem;
      line-height: 1.7;
      margin-bottom: 24px;
    }
    .conversion-form-inline {
      display: flex;
      flex-direction: column;
      gap: 12px;
      background: rgba(255, 255, 255, 0.05);
      padding: 24px;
      border-radius: var(--radius-md);
      border: 1px solid rgba(255, 255, 255, 0.1);
    }
    .conversion-form-inline input {
      height: 46px;
      background: #ffffff;
      border: 1px solid #cbd5e1;
      border-radius: var(--radius-sm);
      padding: 0 14px;
      font-size: 0.9rem;
      color: var(--primary);
      outline: none;
    }
    .conversion-form-inline button {
      height: 46px;
      background: var(--primary-accent);
      color: #ffffff;
      border: none;
      border-radius: var(--radius-sm);
      font-weight: 700;
      font-size: 0.95rem;
      cursor: pointer;
      transition: var(--transition);
    }
    .conversion-form-inline button:hover {
      background: #1d4ed8;
      box-shadow: 0 4px 14px rgba(37, 99, 235, 0.4);
    }

    /* 页脚 */
    .site-footer {
      background: #0b0f19;
      color: #94a3b8;
      padding: 64px 0 24px;
      border-top: 1px solid #1e293b;
    }
    .footer-grid {
      display: grid;
      grid-template-columns: 2fr 1fr 1fr 1.5fr;
      gap: 40px;
      margin-bottom: 48px;
    }
    .footer-col h4 {
      color: #ffffff;
      font-size: 1rem;
      font-weight: 700;
      margin-bottom: 18px;
    }
    .footer-col ul {
      list-style: none;
      padding: 0;
      margin: 0;
    }
    .footer-col ul li {
      margin-bottom: 10px;
    }
    .footer-col ul a {
      color: #94a3b8;
      font-size: 0.88rem;
    }
    .footer-col ul a:hover {
      color: #ffffff;
    }
    .footer-bottom {
      border-top: 1px solid #1e293b;
      padding-top: 24px;
      text-align: center;
      font-size: 0.84rem;
      color: #64748b;
    }

    /* 响应式断点 */
    @media (max-width: 1024px) {
      .metrics-dashboard-grid { grid-template-columns: repeat(2, 1fr); }
      .matrix-showcase { grid-template-columns: repeat(2, 1fr); }
      .lead-box-grid { grid-template-columns: 1fr; gap: 36px; }
      .conversion-banner-grid { grid-template-columns: 1fr; }
      .footer-grid { grid-template-columns: 1fr 1fr; }
    }
    @media (max-width: 768px) {
      .search-wrapper { display: none; }
      .nav-menu { display: none; }
      .mobile-toggle { display: block; }
      .lead-text-side h1 { font-size: 2rem; }
      .matrix-showcase { grid-template-columns: 1fr; }
      .compare-header-row, .compare-item-row { grid-template-columns: 1.5fr 1fr 1fr; }
      .compare-header-row div:nth-child(4), .compare-header-row div:nth-child(5),
      .compare-item-row div:nth-child(4), .compare-item-row div:nth-child(5) { display: none; }
      .news-report-grid { grid-template-columns: 1fr; }
      .guarantee-grid { grid-template-columns: 1fr; }
      .quick-faq-grid { grid-template-columns: 1fr; }
      .footer-grid { grid-template-columns: 1fr; }
    }
    @media (max-width: 520px) {
      .metrics-dashboard-grid { grid-template-columns: 1fr; }
      .section-header h2 { font-size: 1.6rem; }
      .lead-pain-point { font-size: 0.95rem; }
      .conversion-banner { padding: 28px 20px; }
    }