/* roulang page: index */
:root {
      --primary: #f05a28;
      --primary-hover: #d94b1c;
      --primary-light: #fff3ee;
      --text-main: #1f2937;
      --text-muted: #6b7280;
      --text-light: #9ca3af;
      --bg-page: #fbfbfd;
      --bg-card: #ffffff;
      --border-color: #f0f0f4;
      --border-focus: #fbd6c9;
      --radius-sm: 8px;
      --radius-md: 14px;
      --radius-lg: 20px;
      --radius-full: 9999px;
      --shadow-sm: 0 2px 8px rgba(0,0,0,0.04);
      --shadow-md: 0 8px 24px rgba(0,0,0,0.06);
      --shadow-lg: 0 16px 36px rgba(240,90,40,0.12);
      --font-stack: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
    }

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

    body {
      font-family: var(--font-stack);
      color: var(--text-main);
      background-color: var(--bg-page);
      line-height: 1.65;
      font-size: 15px;
      overflow-x: hidden;
      -webkit-font-smoothing: antialiased;
    }

    a {
      color: inherit;
      text-decoration: none;
      transition: color 0.25s, opacity 0.25s;
    }

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

    .container {
      width: 100%;
      max-width: 1200px;
      margin: 0 auto;
      padding: 0 20px;
    }

    /* 悬浮胶囊导航 */
    .capsule-header-wrapper {
      position: sticky;
      top: 16px;
      z-index: 1000;
      padding: 0 16px;
      width: 100%;
      max-width: 1100px;
      margin: 0 auto;
    }

    .capsule-header {
      background: rgba(255, 255, 255, 0.92);
      backdrop-filter: blur(12px);
      -webkit-backdrop-filter: blur(12px);
      border: 1px solid rgba(229, 231, 235, 0.8);
      border-radius: var(--radius-full);
      padding: 10px 24px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      box-shadow: 0 6px 20px rgba(0, 0, 0, 0.05);
    }

    .brand-logo {
      display: flex;
      align-items: center;
      gap: 10px;
      font-size: 17px;
      font-weight: 700;
      color: var(--text-main);
      letter-spacing: -0.3px;
    }

    .brand-logo-icon {
      width: 32px;
      height: 32px;
      background: var(--primary);
      border-radius: 9px;
      display: flex;
      align-items: center;
      justify-content: center;
      color: #fff;
      font-weight: 900;
      font-size: 15px;
    }

    .nav-links {
      display: flex;
      align-items: center;
      gap: 22px;
      list-style: none;
    }

    .nav-links li a {
      font-size: 14px;
      color: var(--text-muted);
      font-weight: 500;
      position: relative;
      padding: 4px 2px;
    }

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

    .nav-links li a.active::after {
      content: '';
      position: absolute;
      bottom: -2px;
      left: 0;
      width: 100%;
      height: 2px;
      background: var(--primary);
      border-radius: 2px;
    }

    .nav-actions .btn-download {
      background: var(--primary);
      color: #ffffff;
      padding: 8px 18px;
      border-radius: var(--radius-full);
      font-size: 13px;
      font-weight: 600;
      transition: all 0.25s ease;
      display: inline-flex;
      align-items: center;
      gap: 6px;
    }

    .nav-actions .btn-download:hover {
      background: var(--primary-hover);
      box-shadow: 0 4px 14px rgba(240, 90, 40, 0.3);
      transform: translateY(-1px);
    }

    /* 板块通用体系 */
    .section-wrap {
      padding: 70px 0;
      position: relative;
    }

    .section-bg-muted {
      background-color: #f7f8fa;
    }

    .section-bg-white {
      background-color: #ffffff;
    }

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

    .section-tag {
      display: inline-block;
      font-size: 12px;
      font-weight: 600;
      color: var(--primary);
      background: var(--primary-light);
      padding: 4px 12px;
      border-radius: var(--radius-full);
      margin-bottom: 12px;
      letter-spacing: 0.5px;
    }

    .section-title {
      font-size: 26px;
      font-weight: 700;
      color: var(--text-main);
      line-height: 1.35;
      margin-bottom: 12px;
      letter-spacing: -0.5px;
    }

    .section-desc {
      font-size: 15px;
      color: var(--text-muted);
      max-width: 680px;
      line-height: 1.6;
    }

    /* 1. Hero: 白皮书获客与资料下载 */
    .hero-whitepaper {
      padding: 60px 0 80px;
      background: linear-gradient(180deg, #fef7f4 0%, #fbfbfd 100%);
      border-bottom: 1px solid var(--border-color);
    }

    .hero-grid {
      display: grid;
      grid-template-columns: 1.15fr 0.85fr;
      gap: 48px;
      align-items: center;
    }

    .hero-content h1 {
      font-size: 38px;
      font-weight: 800;
      line-height: 1.25;
      color: #111827;
      margin-bottom: 18px;
      letter-spacing: -1px;
    }

    .hero-content .hero-lead {
      font-size: 16px;
      color: var(--text-muted);
      line-height: 1.75;
      margin-bottom: 24px;
    }

    .whitepaper-index {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 18px 20px;
      margin-bottom: 24px;
      box-shadow: var(--shadow-sm);
    }

    .whitepaper-index-title {
      font-size: 13px;
      font-weight: 700;
      color: var(--primary);
      text-transform: uppercase;
      margin-bottom: 10px;
      display: flex;
      align-items: center;
      gap: 6px;
    }

    .whitepaper-index-list {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 8px 16px;
      list-style: none;
      font-size: 13px;
      color: var(--text-main);
    }

    .whitepaper-index-list li::before {
      content: "•";
      color: var(--primary);
      margin-right: 6px;
      font-weight: bold;
    }

    .hero-cover-box {
      background: #ffffff;
      padding: 24px;
      border-radius: var(--radius-lg);
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-md);
      position: relative;
    }

    .cover-img-wrapper {
      position: relative;
      border-radius: var(--radius-md);
      overflow: hidden;
      margin-bottom: 20px;
      height: 250px;
    }

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

    .file-meta-strip {
      display: flex;
      justify-content: space-between;
      border-top: 1px dashed var(--border-color);
      padding-top: 16px;
      font-size: 13px;
      color: var(--text-muted);
    }

    .file-meta-strip strong {
      color: var(--text-main);
    }

    .direct-download-group {
      margin-top: 16px;
      display: flex;
      flex-direction: column;
      gap: 10px;
    }

    .btn-main-action {
      background: var(--primary);
      color: #fff;
      padding: 14px;
      text-align: center;
      border-radius: var(--radius-md);
      font-weight: 700;
      font-size: 15px;
      transition: all 0.25s ease;
      display: flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
    }

    .btn-main-action:hover {
      background: var(--primary-hover);
      box-shadow: var(--shadow-lg);
      transform: translateY(-2px);
    }

    .btn-sub-action {
      background: #fff;
      color: var(--text-main);
      border: 1px solid #d1d5db;
      padding: 10px;
      text-align: center;
      border-radius: var(--radius-md);
      font-size: 13px;
      font-weight: 600;
    }

    /* 2. 双栏流：左资讯流 + 右热榜 */
    .stream-dual-layout {
      display: grid;
      grid-template-columns: 2fr 1fr;
      gap: 36px;
      align-items: start;
    }

    .news-card-item {
      display: grid;
      grid-template-columns: 140px 1fr;
      gap: 20px;
      background: #ffffff;
      padding: 16px;
      border-radius: var(--radius-md);
      border: 1px solid var(--border-color);
      margin-bottom: 16px;
      transition: all 0.25s ease;
    }

    .news-card-item:hover {
      box-shadow: var(--shadow-sm);
      border-color: var(--border-focus);
    }

    .news-card-thumb {
      height: 95px;
      border-radius: var(--radius-sm);
      overflow: hidden;
    }

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

    .news-card-content h3 {
      font-size: 16px;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 6px;
      line-height: 1.4;
    }

    .news-card-content p {
      font-size: 13px;
      color: var(--text-muted);
      line-height: 1.5;
      margin-bottom: 8px;
    }

    .news-card-meta {
      font-size: 12px;
      color: var(--text-light);
      display: flex;
      gap: 14px;
    }

    /* 右侧热榜 */
    .hot-rank-panel {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 24px;
      box-shadow: var(--shadow-sm);
    }

    .hot-rank-header {
      font-size: 17px;
      font-weight: 700;
      color: var(--text-main);
      padding-bottom: 12px;
      border-bottom: 1px solid var(--border-color);
      margin-bottom: 16px;
    }

    .hot-rank-list {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 14px;
    }

    .hot-rank-item {
      display: flex;
      align-items: center;
      gap: 12px;
      font-size: 14px;
      color: var(--text-main);
    }

    .rank-num {
      width: 22px;
      height: 22px;
      border-radius: 6px;
      background: #f3f4f6;
      color: var(--text-muted);
      font-size: 12px;
      font-weight: 700;
      display: flex;
      align-items: center;
      justify-content: center;
      flex-shrink: 0;
    }

    .hot-rank-item:nth-child(1) .rank-num {
      background: #fee2e2;
      color: #ef4444;
    }
    .hot-rank-item:nth-child(2) .rank-num {
      background: #ffedd5;
      color: #f97316;
    }
    .hot-rank-item:nth-child(3) .rank-num {
      background: #fef3c7;
      color: #d97706;
    }

    /* 3. 专题条 */
    .topic-banner-strip {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-lg);
      padding: 32px 40px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 30px;
    }

    .topic-banner-info h2 {
      font-size: 22px;
      font-weight: 800;
      color: var(--text-main);
      margin-bottom: 8px;
    }

    .topic-banner-info p {
      font-size: 14px;
      color: var(--text-muted);
      max-width: 600px;
    }

    /* 4. 最新动态组件 */
    .updates-table-box {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      overflow: hidden;
    }

    .update-row {
      display: grid;
      grid-template-columns: 140px 1.5fr 1fr 100px;
      padding: 16px 20px;
      align-items: center;
      border-bottom: 1px solid var(--border-color);
      font-size: 14px;
    }

    .update-row:last-child {
      border-bottom: none;
    }

    .update-row:hover {
      background-color: #fdfdfe;
    }

    .update-ver {
      font-weight: 700;
      color: var(--primary);
      display: flex;
      align-items: center;
      gap: 6px;
    }

    .update-tag {
      font-size: 11px;
      padding: 2px 8px;
      border-radius: var(--radius-full);
      background: #ecfdf5;
      color: #059669;
      font-weight: 600;
    }

    .update-desc-text {
      color: var(--text-main);
    }

    .update-time-text {
      color: var(--text-muted);
      font-size: 13px;
    }

    /* 5. 媒体合作 / 权威背书 */
    .partner-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
    }

    .partner-card {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 24px 20px;
      text-align: center;
    }

    .partner-title {
      font-size: 15px;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 8px;
    }

    .partner-desc {
      font-size: 13px;
      color: var(--text-muted);
      line-height: 1.5;
    }

    /* 6. 指标看板 */
    .metric-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
      margin-bottom: 30px;
    }

    .metric-card {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 24px;
      box-shadow: var(--shadow-sm);
    }

    .metric-num {
      font-size: 32px;
      font-weight: 800;
      color: var(--primary);
      line-height: 1.1;
      margin-bottom: 6px;
    }

    .metric-label {
      font-size: 14px;
      font-weight: 600;
      color: var(--text-main);
      margin-bottom: 4px;
    }

    .metric-detail {
      font-size: 12px;
      color: var(--text-muted);
      line-height: 1.4;
    }

    /* 7. 服务矩阵 (三列网格) */
    .feature-matrix-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }

    .matrix-card {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 28px 24px;
      transition: all 0.25s ease;
    }

    .matrix-card:hover {
      transform: translateY(-3px);
      box-shadow: var(--shadow-md);
      border-color: var(--border-focus);
    }

    .matrix-card h3 {
      font-size: 18px;
      font-weight: 700;
      margin-bottom: 12px;
      color: var(--text-main);
    }

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

    /* 8. 结果对比与架构指标 */
    .compare-container {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 24px;
    }

    .compare-box {
      border-radius: var(--radius-md);
      padding: 28px;
      border: 1px solid var(--border-color);
    }

    .compare-box.native {
      background: #ffffff;
      border-left: 4px solid var(--primary);
    }

    .compare-box.standard {
      background: #fbfbfc;
    }

    .compare-box h3 {
      font-size: 18px;
      font-weight: 700;
      margin-bottom: 16px;
    }

    .compare-list {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 12px;
      font-size: 14px;
    }

    .compare-list li {
      display: flex;
      align-items: flex-start;
      gap: 8px;
      line-height: 1.5;
    }

    /* 9. 里程碑时间线 */
    .milestone-strip {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
    }

    .milestone-item {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 20px;
      position: relative;
    }

    .milestone-item::after {
      content: "";
      position: absolute;
      top: -6px;
      left: 20px;
      width: 12px;
      height: 12px;
      border-radius: 50%;
      background: var(--primary);
    }

    .milestone-stage {
      font-size: 12px;
      font-weight: 700;
      color: var(--primary);
      margin-bottom: 6px;
    }

    .milestone-title {
      font-size: 15px;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 8px;
    }

    .milestone-detail {
      font-size: 13px;
      color: var(--text-muted);
      line-height: 1.5;
    }

    /* 10. 平台保障 */
    .guarantee-bar {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }

    .guarantee-box {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 24px;
    }

    .guarantee-box h3 {
      font-size: 17px;
      font-weight: 700;
      margin-bottom: 8px;
      color: #111827;
    }

    .guarantee-box p {
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.55;
    }

    /* 11. 常见问题 (FAQ) */
    .faq-list {
      display: flex;
      flex-direction: column;
      gap: 16px;
      max-width: 900px;
      margin: 0 auto;
    }

    .faq-item {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 20px 24px;
    }

    .faq-q {
      font-size: 16px;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 10px;
    }

    .faq-a {
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.6;
    }

    /* 12. 转化留资区 */
    .conversion-box {
      background: linear-gradient(135deg, #2b2d42 0%, #1a1c29 100%);
      border-radius: var(--radius-lg);
      padding: 48px;
      color: #ffffff;
      display: grid;
      grid-template-columns: 1.2fr 0.8fr;
      gap: 40px;
      align-items: center;
    }

    .conversion-box h2 {
      font-size: 26px;
      font-weight: 800;
      margin-bottom: 12px;
      letter-spacing: -0.5px;
    }

    .conversion-box p {
      font-size: 14px;
      color: #cbd5e1;
      line-height: 1.6;
      margin-bottom: 20px;
    }

    .conversion-form {
      background: #ffffff;
      padding: 24px;
      border-radius: var(--radius-md);
      color: var(--text-main);
    }

    .form-group {
      margin-bottom: 14px;
    }

    .form-group label {
      display: block;
      font-size: 12px;
      font-weight: 600;
      margin-bottom: 6px;
      color: #374151;
    }

    .form-control {
      width: 100%;
      padding: 10px 14px;
      border: 1px solid #d1d5db;
      border-radius: var(--radius-sm);
      font-size: 14px;
      outline: none;
    }

    .form-control:focus {
      border-color: var(--primary);
    }

    .btn-form-submit {
      width: 100%;
      background: var(--primary);
      color: #fff;
      border: none;
      padding: 12px;
      border-radius: var(--radius-sm);
      font-weight: 700;
      font-size: 14px;
      cursor: pointer;
      transition: background 0.2s ease;
    }

    .btn-form-submit:hover {
      background: var(--primary-hover);
    }

    /* 城市切换条 */
    .city-switch-strip {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 16px 20px;
      display: flex;
      align-items: center;
      gap: 12px;
      margin-bottom: 24px;
      flex-wrap: wrap;
    }

    .city-switch-title {
      font-size: 13px;
      font-weight: 700;
      color: var(--text-main);
    }

    .city-chip {
      background: #f3f4f6;
      padding: 6px 14px;
      border-radius: var(--radius-full);
      font-size: 12px;
      color: var(--text-muted);
      cursor: pointer;
      transition: all 0.2s ease;
    }

    .city-chip.active,
    .city-chip:hover {
      background: var(--primary);
      color: #ffffff;
    }

    /* 裂变邀请墙 */
    .referral-box {
      background: #fff8f5;
      border: 1px solid #fed7aa;
      border-radius: var(--radius-md);
      padding: 24px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 20px;
    }

    .referral-info h4 {
      font-size: 16px;
      font-weight: 700;
      color: #9a3412;
      margin-bottom: 4px;
    }

    .referral-info p {
      font-size: 13px;
      color: #c2410c;
    }

    .referral-action button {
      background: #ea580c;
      color: #fff;
      border: none;
      padding: 10px 18px;
      border-radius: var(--radius-sm);
      font-size: 13px;
      font-weight: 600;
      cursor: pointer;
    }

    /* 话题标签云 */
    .tag-cloud-wrap {
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
    }

    .tag-cloud-item {
      background: #ffffff;
      border: 1px solid var(--border-color);
      padding: 8px 16px;
      border-radius: var(--radius-full);
      font-size: 13px;
      color: var(--text-main);
      transition: all 0.2s ease;
    }

    .tag-cloud-item:hover {
      border-color: var(--primary);
      color: var(--primary);
      background: var(--primary-light);
    }

    /* 统一页脚 */
    .site-footer {
      background: #111827;
      color: #9ca3af;
      padding: 60px 0 30px;
      font-size: 14px;
      border-top: 1px solid #1f2937;
    }

    .footer-grid {
      display: grid;
      grid-template-columns: 1.5fr repeat(3, 1fr);
      gap: 40px;
      margin-bottom: 40px;
    }

    .footer-brand h4 {
      font-size: 18px;
      color: #ffffff;
      font-weight: 700;
      margin-bottom: 12px;
    }

    .footer-brand p {
      font-size: 13px;
      line-height: 1.6;
      max-width: 320px;
      margin-bottom: 16px;
    }

    .footer-col h5 {
      font-size: 15px;
      color: #ffffff;
      font-weight: 600;
      margin-bottom: 16px;
    }

    .footer-links {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 10px;
    }

    .footer-links a:hover {
      color: #ffffff;
    }

    .footer-bottom {
      border-top: 1px solid #1f2937;
      padding-top: 24px;
      display: flex;
      justify-content: space-between;
      align-items: center;
      font-size: 12px;
    }

    /* 浮动吸底转化条 */
    .float-bottom-bar {
      position: fixed;
      bottom: 0;
      left: 0;
      width: 100%;
      background: rgba(17, 24, 39, 0.95);
      backdrop-filter: blur(8px);
      -webkit-backdrop-filter: blur(8px);
      border-top: 1px solid rgba(255, 255, 255, 0.1);
      padding: 12px 20px;
      z-index: 999;
      display: flex;
      align-items: center;
      justify-content: space-between;
      box-shadow: 0 -4px 16px rgba(0, 0, 0, 0.15);
    }

    .float-bar-text {
      color: #ffffff;
      font-size: 14px;
      display: flex;
      align-items: center;
      gap: 10px;
    }

    .float-bar-badge {
      background: var(--primary);
      color: #ffffff;
      font-size: 11px;
      padding: 2px 8px;
      border-radius: var(--radius-full);
      font-weight: 700;
    }

    .float-bar-btn {
      background: var(--primary);
      color: #ffffff;
      padding: 8px 20px;
      border-radius: var(--radius-full);
      font-size: 13px;
      font-weight: 600;
      transition: background 0.2s ease;
    }

    .float-bar-btn:hover {
      background: var(--primary-hover);
    }

    /* 响应式断点 */
    @media (max-width: 1024px) {
      .hero-grid {
        grid-template-columns: 1fr;
        gap: 32px;
      }
      .stream-dual-layout {
        grid-template-columns: 1fr;
      }
      .metric-grid,
      .partner-grid,
      .milestone-strip {
        grid-template-columns: repeat(2, 1fr);
      }
      .feature-matrix-grid {
        grid-template-columns: 1fr;
      }
      .footer-grid {
        grid-template-columns: 1fr 1fr;
      }
    }

    @media (max-width: 768px) {
      .nav-links {
        display: none;
      }
      .section-wrap {
        padding: 48px 0;
      }
      .hero-content h1 {
        font-size: 26px;
      }
      .conversion-box {
        grid-template-columns: 1fr;
        padding: 28px;
      }
      .compare-container {
        grid-template-columns: 1fr;
      }
      .update-row {
        grid-template-columns: 1fr;
        gap: 8px;
      }
      .footer-bottom {
        flex-direction: column;
        gap: 10px;
        text-align: center;
      }
      .float-bar-text {
        font-size: 12px;
      }
    }

/* roulang page: category1 */
:root {
      --primary: #f05a28;
      --primary-hover: #d94b1c;
      --primary-light: #fff3ee;
      --text-main: #1f2937;
      --text-muted: #6b7280;
      --text-light: #9ca3af;
      --bg-page: #fbfbfd;
      --bg-card: #ffffff;
      --border-color: #f0f0f4;
      --border-focus: #fbd6c9;
      --radius-sm: 8px;
      --radius-md: 14px;
      --radius-lg: 20px;
      --radius-full: 9999px;
      --shadow-sm: 0 2px 8px rgba(0,0,0,0.04);
      --shadow-md: 0 8px 24px rgba(0,0,0,0.06);
      --shadow-lg: 0 16px 36px rgba(240,90,40,0.12);
      --font-stack: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
    }
    * {
      box-sizing: border-box;
      margin: 0;
      padding: 0;
    }
    body {
      font-family: var(--font-stack);
      color: var(--text-main);
      background-color: var(--bg-page);
      line-height: 1.65;
      font-size: 15px;
      overflow-x: hidden;
      -webkit-font-smoothing: antialiased;
    }
    a {
      color: inherit;
      text-decoration: none;
      transition: color 0.25s, opacity 0.25s;
    }
    img {
      max-width: 100%;
      height: auto;
      display: block;
      object-fit: cover;
    }
    .container {
      width: 100%;
      max-width: 1200px;
      margin: 0 auto;
      padding: 0 20px;
    }

    /* 悬浮胶囊导航 */
    .capsule-header-wrapper {
      position: sticky;
      top: 16px;
      z-index: 1000;
      padding: 0 16px;
      width: 100%;
      max-width: 1100px;
      margin: 0 auto;
    }
    .capsule-header {
      background: rgba(255, 255, 255, 0.94);
      backdrop-filter: blur(12px);
      -webkit-backdrop-filter: blur(12px);
      border: 1px solid rgba(229, 231, 235, 0.8);
      border-radius: var(--radius-full);
      padding: 10px 24px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      box-shadow: 0 6px 20px rgba(0, 0, 0, 0.05);
    }
    .brand-logo {
      display: flex;
      align-items: center;
      gap: 10px;
      font-size: 17px;
      font-weight: 700;
      color: var(--text-main);
      letter-spacing: -0.3px;
    }
    .brand-logo-icon {
      width: 32px;
      height: 32px;
      background: var(--primary);
      border-radius: 9px;
      display: flex;
      align-items: center;
      justify-content: center;
      color: #fff;
      font-weight: 900;
      font-size: 15px;
    }
    .nav-links {
      display: flex;
      align-items: center;
      gap: 22px;
      list-style: none;
    }
    .nav-links li a {
      font-size: 14px;
      color: var(--text-muted);
      font-weight: 500;
      position: relative;
      padding: 4px 2px;
    }
    .nav-links li a:hover,
    .nav-links li a.active {
      color: var(--primary);
    }
    .nav-links li a.active::after {
      content: '';
      position: absolute;
      bottom: -2px;
      left: 0;
      width: 100%;
      height: 2px;
      background: var(--primary);
      border-radius: 2px;
    }
    .nav-actions .btn-download {
      background: var(--primary);
      color: #ffffff;
      padding: 8px 18px;
      border-radius: var(--radius-full);
      font-size: 13px;
      font-weight: 600;
      transition: all 0.25s ease;
      display: inline-flex;
      align-items: center;
      gap: 6px;
    }
    .nav-actions .btn-download:hover {
      background: var(--primary-hover);
      box-shadow: 0 4px 14px rgba(240, 90, 40, 0.3);
      transform: translateY(-1px);
    }

    /* 板块基础规范 */
    .section-wrap {
      padding: 70px 0;
      position: relative;
    }
    .section-bg-muted {
      background-color: #f7f8fa;
    }
    .section-bg-white {
      background-color: #ffffff;
    }
    .section-header {
      margin-bottom: 40px;
    }
    .section-header.text-center {
      text-align: center;
    }
    .section-tag {
      display: inline-block;
      font-size: 12px;
      font-weight: 600;
      color: var(--primary);
      background: var(--primary-light);
      padding: 4px 12px;
      border-radius: var(--radius-full);
      margin-bottom: 12px;
      letter-spacing: 0.5px;
    }
    .section-title {
      font-size: 28px;
      font-weight: 700;
      color: var(--text-main);
      line-height: 1.35;
      margin-bottom: 12px;
      letter-spacing: -0.5px;
    }
    .section-desc {
      font-size: 15px;
      color: var(--text-muted);
      max-width: 680px;
      line-height: 1.6;
    }
    .section-header.text-center .section-desc {
      margin: 0 auto;
    }

    /* 蓝图：视频全宽遮罩 Hero */
    .hero-video-banner {
      position: relative;
      background-color: #0b0f19;
      color: #ffffff;
      padding: 100px 0 90px;
      overflow: hidden;
      border-bottom: 1px solid rgba(255,255,255,0.08);
    }
    .hero-bg-overlay {
      position: absolute;
      top: 0;
      left: 0;
      width: 100%;
      height: 100%;
      background-image: url('/assets/images/ca14794e293cbe55.webp');
      background-size: cover;
      background-position: center;
      opacity: 0.22;
      filter: saturate(1.2);
    }
    .hero-container-inner {
      position: relative;
      z-index: 2;
      max-width: 860px;
      margin: 0 auto;
      text-align: center;
    }
    .hero-badge-pill {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      background: rgba(240, 90, 40, 0.15);
      border: 1px solid rgba(240, 90, 40, 0.35);
      color: #ff8254;
      padding: 6px 16px;
      border-radius: var(--radius-full);
      font-size: 13px;
      font-weight: 600;
      margin-bottom: 24px;
    }
    .hero-video-banner h1 {
      font-size: 40px;
      font-weight: 800;
      line-height: 1.25;
      margin-bottom: 20px;
      letter-spacing: -1px;
      color: #ffffff;
    }
    .hero-video-banner .lead-text {
      font-size: 16px;
      color: #d1d5db;
      line-height: 1.8;
      margin-bottom: 36px;
      max-width: 760px;
      margin-left: auto;
      margin-right: auto;
    }
    .hero-action-group {
      display: flex;
      align-items: center;
      justify-content: center;
      gap: 16px;
      flex-wrap: wrap;
    }
    .btn-hero-primary {
      background: var(--primary);
      color: #ffffff;
      font-size: 15px;
      font-weight: 700;
      padding: 14px 32px;
      border-radius: var(--radius-full);
      display: inline-flex;
      align-items: center;
      gap: 10px;
      box-shadow: 0 10px 25px rgba(240, 90, 40, 0.4);
      transition: all 0.25s ease;
    }
    .btn-hero-primary:hover {
      background: var(--primary-hover);
      transform: translateY(-2px);
      box-shadow: 0 14px 30px rgba(240, 90, 40, 0.5);
    }
    .btn-hero-secondary {
      background: rgba(255, 255, 255, 0.1);
      backdrop-filter: blur(8px);
      border: 1px solid rgba(255, 255, 255, 0.25);
      color: #ffffff;
      font-size: 15px;
      font-weight: 600;
      padding: 14px 28px;
      border-radius: var(--radius-full);
      display: inline-flex;
      align-items: center;
      gap: 8px;
      transition: all 0.25s ease;
    }
    .btn-hero-secondary:hover {
      background: rgba(255, 255, 255, 0.2);
    }

    /* 布局变体主干 1: 指标看板 (Metrics Board) */
    .metrics-board {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
      margin-top: -45px;
      position: relative;
      z-index: 10;
    }
    .metric-card {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 24px 20px;
      box-shadow: var(--shadow-md);
      display: flex;
      flex-direction: column;
      justify-content: center;
      transition: transform 0.25s ease, box-shadow 0.25s ease;
    }
    .metric-card:hover {
      transform: translateY(-3px);
      box-shadow: var(--shadow-lg);
    }
    .metric-num {
      font-size: 28px;
      font-weight: 800;
      color: var(--primary);
      line-height: 1.2;
      margin-bottom: 4px;
      font-feature-settings: "tnum";
    }
    .metric-label {
      font-size: 14px;
      font-weight: 600;
      color: var(--text-main);
      margin-bottom: 4px;
    }
    .metric-sub {
      font-size: 12px;
      color: var(--text-muted);
    }

    /* 布局变体主干 2: 服务矩阵 (Service Matrix) */
    .matrix-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }
    .matrix-item {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-lg);
      padding: 28px;
      transition: all 0.3s ease;
      position: relative;
      overflow: hidden;
    }
    .matrix-item:hover {
      border-color: var(--border-focus);
      box-shadow: var(--shadow-md);
      transform: translateY(-4px);
    }
    .matrix-icon-wrap {
      width: 46px;
      height: 46px;
      border-radius: 12px;
      background: var(--primary-light);
      color: var(--primary);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 20px;
      font-weight: 700;
      margin-bottom: 20px;
    }
    .matrix-item h3 {
      font-size: 18px;
      font-weight: 700;
      margin-bottom: 10px;
      color: var(--text-main);
    }
    .matrix-item p {
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.65;
    }
    .matrix-tag-list {
      display: flex;
      gap: 8px;
      margin-top: 18px;
      flex-wrap: wrap;
    }
    .matrix-tag {
      font-size: 12px;
      background: #f3f4f6;
      color: #4b5563;
      padding: 3px 10px;
      border-radius: var(--radius-sm);
    }

    /* 布局变体主干 3: 结果对比 (Result Comparison) */
    .compare-container {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-lg);
      overflow: hidden;
      box-shadow: var(--shadow-sm);
    }
    .compare-table {
      width: 100%;
      border-collapse: collapse;
      text-align: left;
    }
    .compare-table th {
      background: #f9fafb;
      padding: 18px 24px;
      font-size: 15px;
      font-weight: 700;
      color: var(--text-main);
      border-bottom: 1px solid var(--border-color);
    }
    .compare-table th.highlight-col {
      background: var(--primary-light);
      color: var(--primary);
    }
    .compare-table td {
      padding: 16px 24px;
      font-size: 14px;
      border-bottom: 1px solid var(--border-color);
      color: var(--text-muted);
    }
    .compare-table tr:last-child td {
      border-bottom: none;
    }
    .compare-table td.feature-title {
      font-weight: 600;
      color: var(--text-main);
    }
    .compare-table td.highlight-cell {
      background: rgba(240, 90, 40, 0.02);
      color: var(--text-main);
      font-weight: 600;
    }
    .status-badge-ok {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      color: #10b981;
      font-weight: 600;
    }
    .status-badge-no {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      color: #9ca3af;
    }

    /* 布局变体主干 4: 里程碑 (Milestone Timeline) */
    .timeline-stream {
      position: relative;
      max-width: 860px;
      margin: 0 auto;
      padding-left: 30px;
      border-left: 2px dashed #e5e7eb;
    }
    .timeline-node {
      position: relative;
      margin-bottom: 36px;
    }
    .timeline-node:last-child {
      margin-bottom: 0;
    }
    .timeline-marker {
      position: absolute;
      left: -39px;
      top: 4px;
      width: 16px;
      height: 16px;
      border-radius: 50%;
      background: #ffffff;
      border: 4px solid var(--primary);
      box-shadow: 0 0 0 4px rgba(240, 90, 40, 0.15);
    }
    .timeline-card {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 20px 24px;
      box-shadow: var(--shadow-sm);
    }
    .timeline-date {
      font-size: 13px;
      font-weight: 700;
      color: var(--primary);
      margin-bottom: 6px;
    }
    .timeline-title {
      font-size: 17px;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 8px;
    }
    .timeline-text {
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.6;
    }

    /* 布局变体主干 5: 资讯与分流列表 (News / Node List) */
    .news-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-lg);
      overflow: hidden;
      display: flex;
      flex-direction: column;
      transition: all 0.3s ease;
    }
    .news-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-md);
    }
    .news-img {
      height: 180px;
      width: 100%;
      overflow: hidden;
    }
    .news-img img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: transform 0.4s ease;
    }
    .news-card:hover .news-img img {
      transform: scale(1.05);
    }
    .news-content {
      padding: 22px;
      flex-grow: 1;
      display: flex;
      flex-direction: column;
    }
    .news-meta {
      font-size: 12px;
      color: var(--text-light);
      margin-bottom: 8px;
      display: flex;
      align-items: center;
      justify-content: space-between;
    }
    .news-title {
      font-size: 17px;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 10px;
      line-height: 1.4;
    }
    .news-excerpt {
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.6;
      margin-bottom: 16px;
      flex-grow: 1;
    }
    .news-link {
      font-size: 13px;
      font-weight: 600;
      color: var(--primary);
      display: inline-flex;
      align-items: center;
      gap: 4px;
    }

    /* 布局变体主干 6: 平台安全保障 (Platform Guarantee) */
    .guarantee-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
    }
    .guarantee-card {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 24px;
      text-align: center;
      transition: all 0.25s ease;
    }
    .guarantee-card:hover {
      border-color: var(--primary);
      box-shadow: var(--shadow-sm);
    }
    .guarantee-badge {
      width: 50px;
      height: 50px;
      border-radius: 50%;
      background: #f0fdf4;
      color: #16a34a;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 22px;
      margin: 0 auto 16px;
      border: 1px solid #bbf7d0;
    }
    .guarantee-title {
      font-size: 16px;
      font-weight: 700;
      margin-bottom: 8px;
    }
    .guarantee-desc {
      font-size: 13px;
      color: var(--text-muted);
      line-height: 1.55;
    }

    /* 布局变体主干 7: 快速解答与常见问题 (Quick Answers / FAQ) */
    .faq-grid {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 20px;
    }
    .faq-item {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 24px;
    }
    .faq-question {
      font-size: 16px;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 10px;
      display: flex;
      align-items: flex-start;
      gap: 10px;
    }
    .faq-q-tag {
      background: var(--primary);
      color: #fff;
      font-size: 12px;
      font-weight: 800;
      width: 22px;
      height: 22px;
      border-radius: 6px;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      flex-shrink: 0;
    }
    .faq-answer {
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.65;
      padding-left: 32px;
    }

    /* 布局变体主干 8: 转化表单与下载中心 (Conversion Box) */
    .download-cta-panel {
      background: linear-gradient(135deg, #1f2937 0%, #111827 100%);
      border-radius: var(--radius-lg);
      padding: 48px;
      color: #ffffff;
      display: grid;
      grid-template-columns: 1.2fr 0.8fr;
      gap: 40px;
      align-items: center;
      box-shadow: var(--shadow-lg);
      border: 1px solid rgba(255,255,255,0.1);
    }
    .cta-text-side h2 {
      font-size: 30px;
      font-weight: 800;
      margin-bottom: 14px;
      color: #ffffff;
    }
    .cta-text-side p {
      font-size: 15px;
      color: #9ca3af;
      line-height: 1.7;
      margin-bottom: 24px;
    }
    .cta-param-list {
      display: flex;
      gap: 24px;
      font-size: 13px;
      color: #d1d5db;
    }
    .cta-param-list strong {
      color: #ffffff;
    }
    .cta-card-side {
      background: rgba(255, 255, 255, 0.05);
      backdrop-filter: blur(12px);
      border: 1px solid rgba(255, 255, 255, 0.15);
      border-radius: var(--radius-md);
      padding: 30px;
      text-align: center;
    }
    .btn-download-action {
      background: var(--primary);
      color: #ffffff;
      width: 100%;
      padding: 16px;
      font-size: 16px;
      font-weight: 700;
      border-radius: var(--radius-full);
      display: inline-block;
      text-align: center;
      transition: all 0.25s ease;
      box-shadow: 0 8px 20px rgba(240, 90, 40, 0.35);
      cursor: pointer;
    }
    .btn-download-action:hover {
      background: var(--primary-hover);
      box-shadow: 0 10px 25px rgba(240, 90, 40, 0.5);
      transform: translateY(-2px);
    }
    .cta-notice {
      margin-top: 14px;
      font-size: 12px;
      color: #9ca3af;
    }

    /* 页脚组件规范 */
    .site-footer {
      background: #111827;
      color: #e5e7eb;
      padding: 70px 0 30px;
      font-size: 14px;
      border-top: 1px solid #1f2937;
    }
    .footer-grid {
      display: grid;
      grid-template-columns: 2fr 1fr 1fr 1fr;
      gap: 40px;
      margin-bottom: 50px;
    }
    .footer-brand h4 {
      font-size: 18px;
      color: #fff;
      margin-bottom: 16px;
      font-weight: 700;
    }
    .footer-brand p {
      font-size: 13px;
      color: #9ca3af;
      line-height: 1.7;
      margin-bottom: 20px;
      max-width: 360px;
    }
    .footer-col h5 {
      font-size: 15px;
      color: #fff;
      margin-bottom: 18px;
      font-weight: 600;
    }
    .footer-links {
      list-style: none;
    }
    .footer-links li {
      margin-bottom: 10px;
    }
    .footer-links a {
      color: #9ca3af;
      font-size: 13px;
    }
    .footer-links a:hover {
      color: var(--primary);
    }
    .footer-bottom {
      border-top: 1px solid #1f2937;
      padding-top: 25px;
      display: flex;
      justify-content: space-between;
      align-items: center;
      font-size: 13px;
      color: #6b7280;
      flex-wrap: wrap;
      gap: 15px;
    }

    /* 移动端与响应式断点 */
    @media (max-width: 1024px) {
      .metrics-board {
        grid-template-columns: repeat(2, 1fr);
        margin-top: -30px;
      }
      .matrix-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .news-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .guarantee-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .footer-grid {
        grid-template-columns: 1fr 1fr;
      }
    }
    @media (max-width: 768px) {
      .capsule-header {
        padding: 8px 16px;
      }
      .nav-links {
        display: none;
      }
      .hero-video-banner h1 {
        font-size: 28px;
      }
      .hero-video-banner {
        padding: 60px 0;
      }
      .metrics-board {
        grid-template-columns: 1fr;
        margin-top: 20px;
      }
      .matrix-grid {
        grid-template-columns: 1fr;
      }
      .compare-container {
        overflow-x: auto;
      }
      .compare-table {
        min-width: 580px;
      }
      .news-grid {
        grid-template-columns: 1fr;
      }
      .guarantee-grid {
        grid-template-columns: 1fr;
      }
      .faq-grid {
        grid-template-columns: 1fr;
      }
      .download-cta-panel {
        grid-template-columns: 1fr;
        padding: 30px 20px;
      }
      .footer-grid {
        grid-template-columns: 1fr;
        gap: 30px;
      }
      .footer-bottom {
        flex-direction: column;
        align-items: flex-start;
      }
    }

/* roulang page: category2 */
:root {
      --primary: #f05a28;
      --primary-hover: #d94b1c;
      --primary-light: #fff3ee;
      --text-main: #1f2937;
      --text-muted: #6b7280;
      --text-light: #9ca3af;
      --bg-page: #fbfbfd;
      --bg-card: #ffffff;
      --border-color: #f0f0f4;
      --border-focus: #fbd6c9;
      --radius-sm: 8px;
      --radius-md: 14px;
      --radius-lg: 20px;
      --radius-full: 9999px;
      --shadow-sm: 0 2px 8px rgba(0,0,0,0.04);
      --shadow-md: 0 8px 24px rgba(0,0,0,0.06);
      --shadow-lg: 0 16px 36px rgba(240,90,40,0.12);
      --font-stack: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
    }
    * {
      box-sizing: border-box;
      margin: 0;
      padding: 0;
    }
    body {
      font-family: var(--font-stack);
      color: var(--text-main);
      background-color: var(--bg-page);
      line-height: 1.65;
      font-size: 15px;
      overflow-x: hidden;
      -webkit-font-smoothing: antialiased;
    }
    a {
      color: inherit;
      text-decoration: none;
      transition: color 0.25s, opacity 0.25s;
    }
    img {
      max-width: 100%;
      height: auto;
      display: block;
      object-fit: cover;
    }
    .container {
      width: 100%;
      max-width: 1200px;
      margin: 0 auto;
      padding: 0 20px;
    }
    /* 悬浮胶囊导航 */
    .capsule-header-wrapper {
      position: sticky;
      top: 16px;
      z-index: 1000;
      padding: 0 16px;
      width: 100%;
      max-width: 1100px;
      margin: 0 auto;
    }
    .capsule-header {
      background: rgba(255, 255, 255, 0.92);
      backdrop-filter: blur(12px);
      -webkit-backdrop-filter: blur(12px);
      border: 1px solid rgba(229, 231, 235, 0.8);
      border-radius: var(--radius-full);
      padding: 10px 24px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      box-shadow: 0 6px 20px rgba(0, 0, 0, 0.05);
    }
    .brand-logo {
      display: flex;
      align-items: center;
      gap: 10px;
      font-size: 17px;
      font-weight: 700;
      color: var(--text-main);
      letter-spacing: -0.3px;
    }
    .brand-logo-icon {
      width: 32px;
      height: 32px;
      background: var(--primary);
      border-radius: 9px;
      display: flex;
      align-items: center;
      justify-content: center;
      color: #fff;
      font-weight: 900;
      font-size: 15px;
    }
    .nav-links {
      display: flex;
      align-items: center;
      gap: 22px;
      list-style: none;
    }
    .nav-links li a {
      font-size: 14px;
      color: var(--text-muted);
      font-weight: 500;
      position: relative;
      padding: 4px 2px;
    }
    .nav-links li a:hover,
    .nav-links li a.active {
      color: var(--primary);
    }
    .nav-links li a.active::after {
      content: '';
      position: absolute;
      bottom: -2px;
      left: 0;
      width: 100%;
      height: 2px;
      background: var(--primary);
      border-radius: 2px;
    }
    .nav-actions .btn-download {
      background: var(--primary);
      color: #ffffff;
      padding: 8px 18px;
      border-radius: var(--radius-full);
      font-size: 13px;
      font-weight: 600;
      transition: all 0.25s ease;
      display: inline-flex;
      align-items: center;
      gap: 6px;
    }
    .nav-actions .btn-download:hover {
      background: var(--primary-hover);
      box-shadow: 0 4px 14px rgba(240, 90, 40, 0.3);
      transform: translateY(-1px);
    }
    /* 板块通用体系 */
    .section-wrap {
      padding: 70px 0;
      position: relative;
    }
    .section-bg-muted {
      background-color: #f7f8fa;
    }
    .section-bg-white {
      background-color: #ffffff;
    }
    .section-header {
      margin-bottom: 40px;
    }
    .section-tag {
      display: inline-block;
      font-size: 12px;
      font-weight: 600;
      color: var(--primary);
      background: var(--primary-light);
      padding: 4px 12px;
      border-radius: var(--radius-full);
      margin-bottom: 12px;
      letter-spacing: 0.5px;
    }
    .section-title {
      font-size: 26px;
      font-weight: 700;
      color: var(--text-main);
      line-height: 1.35;
      margin-bottom: 12px;
      letter-spacing: -0.5px;
    }
    .section-desc {
      font-size: 15px;
      color: var(--text-muted);
      max-width: 680px;
      line-height: 1.6;
    }

    /* 布局变体E: 数据驱动流特有样式 */
    /* 1. Hero: 安全合规主张 + 检查项勾选条 + 信任CTA */
    .subpage-hero {
      padding: 50px 0 60px;
      background: linear-gradient(180deg, #fef5f0 0%, #fbfbfd 100%);
      border-bottom: 1px solid var(--border-color);
    }
    .subpage-hero-grid {
      display: grid;
      grid-template-columns: 1.2fr 0.8fr;
      gap: 40px;
      align-items: center;
    }
    .subpage-hero h1 {
      font-size: 34px;
      font-weight: 800;
      line-height: 1.3;
      color: #111827;
      margin-bottom: 16px;
      letter-spacing: -0.8px;
    }
    .hero-lead-text {
      font-size: 15px;
      color: var(--text-muted);
      line-height: 1.7;
      margin-bottom: 24px;
    }
    .compliance-checklist {
      display: flex;
      flex-direction: column;
      gap: 10px;
      margin-bottom: 28px;
    }
    .check-item {
      display: flex;
      align-items: center;
      gap: 10px;
      font-size: 14px;
      font-weight: 600;
      color: #374151;
    }
    .check-icon {
      width: 20px;
      height: 20px;
      background: #e1fbf2;
      color: #059669;
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 12px;
      flex-shrink: 0;
    }
    .hero-cta-group {
      display: flex;
      align-items: center;
      gap: 16px;
      flex-wrap: wrap;
    }
    .btn-solid-primary {
      background: var(--primary);
      color: #ffffff;
      padding: 12px 28px;
      border-radius: var(--radius-full);
      font-size: 15px;
      font-weight: 600;
      transition: all 0.25s ease;
      display: inline-flex;
      align-items: center;
      gap: 8px;
    }
    .btn-solid-primary:hover {
      background: var(--primary-hover);
      box-shadow: var(--shadow-lg);
      transform: translateY(-2px);
    }
    .btn-outline-neutral {
      border: 1px solid #d1d5db;
      background: #ffffff;
      color: #4b5563;
      padding: 12px 24px;
      border-radius: var(--radius-full);
      font-size: 14px;
      font-weight: 600;
      transition: all 0.25s ease;
    }
    .btn-outline-neutral:hover {
      border-color: var(--primary);
      color: var(--primary);
    }
    .subpage-hero-card {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-lg);
      padding: 24px;
      box-shadow: var(--shadow-md);
      position: relative;
    }
    .card-banner-img {
      border-radius: var(--radius-md);
      overflow: hidden;
      margin-bottom: 18px;
      height: 200px;
    }
    .card-banner-img img {
      width: 100%;
      height: 100%;
      object-fit: cover;
    }

    /* 2. 指标看板 (Metrics Dashboard) */
    .dashboard-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
    }
    .metric-card {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 24px;
      box-shadow: var(--shadow-sm);
      text-align: left;
      position: relative;
      overflow: hidden;
    }
    .metric-card::before {
      content: '';
      position: absolute;
      top: 0;
      left: 0;
      width: 4px;
      height: 100%;
      background: var(--primary);
    }
    .metric-value {
      font-size: 32px;
      font-weight: 800;
      color: var(--text-main);
      line-height: 1.1;
      margin-bottom: 6px;
    }
    .metric-label {
      font-size: 13px;
      color: var(--text-muted);
      font-weight: 500;
      margin-bottom: 8px;
    }
    .metric-badge {
      display: inline-block;
      font-size: 11px;
      padding: 2px 8px;
      border-radius: var(--radius-full);
      background: #e1fbf2;
      color: #059669;
      font-weight: 600;
    }

    /* 3. 服务矩阵 (Service Routing Matrix) */
    .routing-matrix {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }
    .route-node-card {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 24px;
      transition: transform 0.25s, box-shadow 0.25s;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }
    .route-node-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-md);
      border-color: var(--border-focus);
    }
    .route-header {
      display: flex;
      justify-content: space-between;
      align-items: center;
      margin-bottom: 16px;
    }
    .route-title {
      font-size: 18px;
      font-weight: 700;
      color: var(--text-main);
    }
    .status-indicator {
      display: flex;
      align-items: center;
      gap: 6px;
      font-size: 12px;
      color: #059669;
      font-weight: 600;
    }
    .status-dot {
      width: 8px;
      height: 8px;
      background: #10b981;
      border-radius: 50%;
      box-shadow: 0 0 0 3px rgba(16, 185, 129, 0.2);
    }
    .route-desc {
      font-size: 13px;
      color: var(--text-muted);
      margin-bottom: 20px;
      line-height: 1.6;
    }
    .route-meta-list {
      list-style: none;
      border-top: 1px dashed var(--border-color);
      padding-top: 14px;
      margin-bottom: 18px;
      display: flex;
      flex-direction: column;
      gap: 8px;
    }
    .route-meta-list li {
      display: flex;
      justify-content: space-between;
      font-size: 12px;
      color: #4b5563;
    }
    .route-meta-list li span:last-child {
      font-weight: 600;
      color: #111827;
    }

    /* 4. 结果对比 (Comparison Data) */
    .compare-container {
      background: #ffffff;
      border-radius: var(--radius-lg);
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-sm);
      overflow: hidden;
    }
    .compare-table {
      width: 100%;
      border-collapse: collapse;
      text-align: left;
    }
    .compare-table th, .compare-table td {
      padding: 18px 24px;
      border-bottom: 1px solid var(--border-color);
      font-size: 14px;
    }
    .compare-table th {
      background: #fafafc;
      font-weight: 700;
      color: var(--text-main);
    }
    .compare-table tr:last-child td {
      border-bottom: none;
    }
    .compare-highlight {
      color: var(--primary);
      font-weight: 700;
    }

    /* 5. 里程碑 (Network Evolution Milestones) */
    .milestone-timeline {
      position: relative;
      max-width: 860px;
      margin: 0 auto;
      padding-left: 30px;
      border-left: 2px solid #e5e7eb;
    }
    .timeline-node {
      position: relative;
      margin-bottom: 36px;
    }
    .timeline-node:last-child {
      margin-bottom: 0;
    }
    .timeline-dot {
      position: absolute;
      left: -37px;
      top: 4px;
      width: 14px;
      height: 14px;
      border-radius: 50%;
      background: var(--primary);
      border: 3px solid #ffffff;
      box-shadow: 0 0 0 2px var(--primary);
    }
    .timeline-date {
      font-size: 12px;
      font-weight: 700;
      color: var(--primary);
      text-transform: uppercase;
      margin-bottom: 4px;
    }
    .timeline-title {
      font-size: 17px;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 8px;
    }
    .timeline-body {
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.65;
    }

    /* 6. 资讯列表 (Technical Articles / Info Grid) */
    .article-cards-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }
    .article-item {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      overflow: hidden;
      transition: transform 0.25s, box-shadow 0.25s;
      display: flex;
      flex-direction: column;
    }
    .article-item:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-md);
    }
    .article-thumb {
      height: 160px;
      overflow: hidden;
      position: relative;
    }
    .article-thumb img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: transform 0.35s ease;
    }
    .article-item:hover .article-thumb img {
      transform: scale(1.05);
    }
    .article-info {
      padding: 20px;
      display: flex;
      flex-direction: column;
      flex-grow: 1;
    }
    .article-tag {
      font-size: 11px;
      font-weight: 600;
      color: var(--primary);
      margin-bottom: 8px;
      display: inline-block;
    }
    .article-h {
      font-size: 16px;
      font-weight: 700;
      color: var(--text-main);
      line-height: 1.4;
      margin-bottom: 10px;
    }
    .article-text {
      font-size: 13px;
      color: var(--text-muted);
      line-height: 1.6;
      margin-bottom: 16px;
      flex-grow: 1;
    }
    .article-link {
      font-size: 13px;
      font-weight: 600;
      color: var(--primary);
      display: inline-flex;
      align-items: center;
      gap: 4px;
    }

    /* 7. 平台保障 (Platform Assurance) */
    .assurance-layout {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 36px;
      align-items: center;
    }
    .assurance-list {
      display: flex;
      flex-direction: column;
      gap: 18px;
    }
    .assurance-box {
      display: flex;
      gap: 16px;
      padding: 16px;
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
    }
    .assurance-icon {
      width: 44px;
      height: 44px;
      border-radius: var(--radius-sm);
      background: var(--primary-light);
      color: var(--primary);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 18px;
      font-weight: bold;
      flex-shrink: 0;
    }
    .assurance-detail h4 {
      font-size: 16px;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 6px;
    }
    .assurance-detail p {
      font-size: 13px;
      color: var(--text-muted);
      line-height: 1.55;
    }

    /* 8. 快速解答与常见 FAQ */
    .faq-compact-grid {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 20px;
    }
    .faq-block {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 22px;
    }
    .faq-block h4 {
      font-size: 16px;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 10px;
      display: flex;
      align-items: center;
      gap: 8px;
    }
    .faq-block h4::before {
      content: "Q";
      color: var(--primary);
      font-size: 18px;
      font-weight: 800;
    }
    .faq-block p {
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.65;
    }

    /* 9. 转化表单 / 线路诊断排查 (Conversion & Diagnostic Box) */
    .conversion-panel {
      background: #ffffff;
      border-radius: var(--radius-lg);
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-lg);
      padding: 44px;
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 40px;
      align-items: center;
    }
    .conversion-info h3 {
      font-size: 24px;
      font-weight: 800;
      color: #111827;
      margin-bottom: 12px;
    }
    .conversion-info p {
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.65;
      margin-bottom: 20px;
    }
    .diag-form {
      display: flex;
      flex-direction: column;
      gap: 16px;
    }
    .form-group {
      display: flex;
      flex-direction: column;
      gap: 6px;
    }
    .form-group label {
      font-size: 13px;
      font-weight: 600;
      color: #374151;
    }
    .form-control {
      width: 100%;
      padding: 12px 16px;
      border: 1px solid #d1d5db;
      border-radius: var(--radius-sm);
      font-size: 14px;
      background: #fdfdfd;
      outline: none;
      transition: border-color 0.25s, box-shadow 0.25s;
    }
    .form-control:focus {
      border-color: var(--primary);
      box-shadow: 0 0 0 3px rgba(240, 90, 40, 0.15);
    }
    .btn-submit-diag {
      background: var(--primary);
      color: #ffffff;
      border: none;
      padding: 14px;
      border-radius: var(--radius-sm);
      font-size: 15px;
      font-weight: 600;
      cursor: pointer;
      transition: background-color 0.25s;
    }
    .btn-submit-diag:hover {
      background: var(--primary-hover);
    }

    /* 页脚通用体系 */
    .site-footer {
      background-color: #ffffff;
      border-top: 1px solid var(--border-color);
      padding: 60px 0 30px;
      margin-top: 40px;
    }
    .footer-grid {
      display: grid;
      grid-template-columns: 2fr 1fr 1fr 1fr;
      gap: 40px;
      margin-bottom: 40px;
    }
    .footer-brand h4 {
      font-size: 17px;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 12px;
    }
    .footer-brand p {
      font-size: 13px;
      color: var(--text-muted);
      line-height: 1.7;
      margin-bottom: 16px;
    }
    .footer-col h5 {
      font-size: 14px;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 16px;
      text-transform: uppercase;
      letter-spacing: 0.5px;
    }
    .footer-links {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 10px;
    }
    .footer-links a {
      font-size: 13px;
      color: var(--text-muted);
    }
    .footer-links a:hover {
      color: var(--primary);
    }
    .footer-bottom {
      border-top: 1px solid var(--border-color);
      padding-top: 24px;
      display: flex;
      justify-content: space-between;
      align-items: center;
      font-size: 12px;
      color: var(--text-light);
      flex-wrap: wrap;
      gap: 12px;
    }

    /* 响应式断点体系 */
    @media (max-width: 1024px) {
      .dashboard-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .routing-matrix {
        grid-template-columns: repeat(2, 1fr);
      }
      .article-cards-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .footer-grid {
        grid-template-columns: repeat(2, 1fr);
      }
    }
    @media (max-width: 768px) {
      .capsule-header {
        padding: 8px 16px;
      }
      .nav-links {
        display: none;
      }
      .subpage-hero-grid {
        grid-template-columns: 1fr;
      }
      .routing-matrix {
        grid-template-columns: 1fr;
      }
      .article-cards-grid {
        grid-template-columns: 1fr;
      }
      .assurance-layout {
        grid-template-columns: 1fr;
      }
      .faq-compact-grid {
        grid-template-columns: 1fr;
      }
      .conversion-panel {
        grid-template-columns: 1fr;
        padding: 24px;
      }
      .footer-grid{
        grid-template-columns: 1fr;
      }
      .compare-container {
        overflow-x: auto;
      }
      .compare-table {
        min-width: 600px;
      }
    }
    @media (max-width: 520px) {
      .dashboard-grid {
        grid-template-columns: 1fr;
      }
      .subpage-hero h1 {
        font-size: 26px;
      }
      .section-title {
        font-size: 22px;
      }
    }

/* roulang page: category3 */
:root {
  --primary: #f05a28;
  --primary-hover: #d94b1c;
  --primary-light: #fff3ee;
  --text-main: #1f2937;
  --text-muted: #6b7280;
  --text-light: #9ca3af;
  --bg-page: #fbfbfd;
  --bg-card: #ffffff;
  --border-color: #f0f0f4;
  --border-focus: #fbd6c9;
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --radius-full: 9999px;
  --shadow-sm: 0 2px 8px rgba(0,0,0,0.04);
  --shadow-md: 0 8px 24px rgba(0,0,0,0.06);
  --shadow-lg: 0 16px 36px rgba(240,90,40,0.12);
  --font-stack: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
}
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}
body {
  font-family: var(--font-stack);
  color: var(--text-main);
  background-color: var(--bg-page);
  line-height: 1.65;
  font-size: 15px;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}
a {
  color: inherit;
  text-decoration: none;
  transition: color 0.25s, opacity 0.25s;
}
img {
  max-width: 100%;
  height: auto;
  display: block;
  object-fit: cover;
}
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}
.capsule-header-wrapper {
  position: sticky;
  top: 16px;
  z-index: 1000;
  padding: 0 16px;
  width: 100%;
  max-width: 1100px;
  margin: 0 auto;
}
.capsule-header {
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid rgba(229, 231, 235, 0.8);
  border-radius: var(--radius-full);
  padding: 10px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.05);
}
.brand-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 17px;
  font-weight: 700;
  color: var(--text-main);
  letter-spacing: -0.3px;
}
.brand-logo-icon {
  width: 32px;
  height: 32px;
  background: var(--primary);
  border-radius: 9px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-weight: 900;
  font-size: 15px;
}
.nav-links {
  display: flex;
  align-items: center;
  gap: 22px;
  list-style: none;
}
.nav-links li a {
  font-size: 14px;
  color: var(--text-muted);
  font-weight: 500;
  position: relative;
  padding: 4px 2px;
}
.nav-links li a:hover,
.nav-links li a.active {
  color: var(--primary);
}
.nav-links li a.active::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 100%;
  height: 2px;
  background: var(--primary);
  border-radius: 2px;
}
.nav-actions .btn-download {
  background: var(--primary);
  color: #ffffff;
  padding: 8px 18px;
  border-radius: var(--radius-full);
  font-size: 13px;
  font-weight: 600;
  transition: all 0.25s ease;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.nav-actions .btn-download:hover {
  background: var(--primary-hover);
  box-shadow: 0 4px 14px rgba(240, 90, 40, 0.3);
  transform: translateY(-1px);
}
.section-wrap {
  padding: 70px 0;
  position: relative;
}
.section-bg-muted {
  background-color: #f7f8fa;
}
.section-bg-white {
  background-color: #ffffff;
}
.section-header {
  margin-bottom: 40px;
}
.section-tag {
  display: inline-block;
  font-size: 12px;
  font-weight: 600;
  color: var(--primary);
  background: var(--primary-light);
  padding: 4px 12px;
  border-radius: var(--radius-full);
  margin-bottom: 12px;
  letter-spacing: 0.5px;
}
.section-title {
  font-size: 26px;
  font-weight: 700;
  color: var(--text-main);
  line-height: 1.35;
  margin-bottom: 12px;
  letter-spacing: -0.5px;
}
.section-desc {
  font-size: 15px;
  color: var(--text-muted);
  max-width: 720px;
  line-height: 1.6;
}

/* 沉浸式 Hero 板块 */
.hero-kv-immersive {
  position: relative;
  background: linear-gradient(135deg, #1f2937 0%, #111827 100%);
  color: #ffffff;
  padding: 80px 0 90px;
  overflow: hidden;
  border-bottom: 1px solid rgba(255,255,255,0.08);
}
.hero-kv-bg {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  opacity: 0.22;
  object-fit: cover;
  pointer-events: none;
}
.hero-kv-content {
  position: relative;
  z-index: 2;
  max-width: 820px;
  margin: 0 auto;
  text-align: center;
}
.hero-countdown-strip {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.16);
  padding: 8px 18px;
  border-radius: var(--radius-full);
  font-size: 13px;
  color: #fbd6c9;
  margin-bottom: 24px;
}
.hero-countdown-strip .badge-dot {
  width: 8px;
  height: 8px;
  background: #10b981;
  border-radius: 50%;
  box-shadow: 0 0 10px #10b981;
}
.hero-kv-content h1 {
  font-size: 38px;
  font-weight: 800;
  line-height: 1.25;
  margin-bottom: 18px;
  letter-spacing: -0.5px;
  color: #ffffff;
}
.hero-kv-content p {
  font-size: 16px;
  color: #d1d5db;
  margin-bottom: 32px;
  line-height: 1.7;
}
.hero-cta-group {
  display: flex;
  justify-content: center;
  gap: 16px;
  flex-wrap: wrap;
}
.btn-primary-lg {
  background: var(--primary);
  color: #ffffff;
  font-weight: 600;
  font-size: 15px;
  padding: 13px 28px;
  border-radius: var(--radius-full);
  transition: all 0.25s ease;
  display: inline-flex;
  align-items: center;
  gap: 8px;
}
.btn-primary-lg:hover {
  background: var(--primary-hover);
  box-shadow: 0 8px 20px rgba(240, 90, 40, 0.35);
  transform: translateY(-2px);
}
.btn-secondary-lg {
  background: rgba(255, 255, 255, 0.12);
  color: #ffffff;
  border: 1px solid rgba(255, 255, 255, 0.25);
  font-weight: 600;
  font-size: 15px;
  padding: 13px 28px;
  border-radius: var(--radius-full);
  transition: all 0.25s ease;
}
.btn-secondary-lg:hover {
  background: rgba(255, 255, 255, 0.2);
}

/* 1. 指标看板 */
.metrics-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}
.metric-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  padding: 26px 20px;
  border-radius: var(--radius-md);
  text-align: center;
  transition: transform 0.25s ease, box-shadow 0.25s ease;
}
.metric-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
}
.metric-num {
  font-size: 34px;
  font-weight: 800;
  color: var(--primary);
  line-height: 1.1;
  margin-bottom: 8px;
}
.metric-label {
  font-size: 14px;
  font-weight: 600;
  color: var(--text-main);
  margin-bottom: 6px;
}
.metric-desc {
  font-size: 12px;
  color: var(--text-muted);
}

/* 2. 服务矩阵 */
.matrix-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.matrix-card {
  background: #ffffff;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-color);
  padding: 28px;
  display: flex;
  flex-direction: column;
  box-shadow: var(--shadow-sm);
}
.matrix-badge {
  align-self: flex-start;
  padding: 4px 10px;
  background: #f3f4f6;
  color: #374151;
  font-size: 11px;
  font-weight: 700;
  border-radius: var(--radius-sm);
  margin-bottom: 14px;
}
.matrix-title {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 10px;
  color: var(--text-main);
}
.matrix-text {
  font-size: 14px;
  color: var(--text-muted);
  margin-bottom: 20px;
  line-height: 1.6;
}
.matrix-list {
  list-style: none;
  margin-top: auto;
  border-top: 1px dashed var(--border-color);
  padding-top: 16px;
  font-size: 13px;
  color: var(--text-main);
}
.matrix-list li {
  margin-bottom: 8px;
  display: flex;
  align-items: center;
  gap: 8px;
}
.matrix-list li::before {
  content: "✓";
  color: #10b981;
  font-weight: bold;
}

/* 3. 结果对比 */
.table-responsive {
  width: 100%;
  overflow-x: auto;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-color);
  background: #ffffff;
  box-shadow: var(--shadow-sm);
}
.comparison-table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
  min-width: 680px;
}
.comparison-table th, 
.comparison-table td {
  padding: 18px 24px;
  font-size: 14px;
  border-bottom: 1px solid var(--border-color);
}
.comparison-table th {
  background: #fafafc;
  color: var(--text-main);
  font-weight: 700;
}
.comparison-table tr:last-child td {
  border-bottom: none;
}
.tag-good {
  color: #059669;
  background: #d1fae5;
  padding: 3px 8px;
  border-radius: var(--radius-sm);
  font-weight: 600;
  font-size: 12px;
}
.tag-bad {
  color: #dc2626;
  background: #fee2e2;
  padding: 3px 8px;
  border-radius: var(--radius-sm);
  font-weight: 600;
  font-size: 12px;
}

/* 4. 里程碑时间轴 */
.timeline-wrap {
  position: relative;
  max-width: 860px;
  margin: 0 auto;
}
.timeline-wrap::before {
  content: '';
  position: absolute;
  top: 10px;
  bottom: 10px;
  left: 20px;
  width: 2px;
  background: #e5e7eb;
}
.timeline-item {
  position: relative;
  padding-left: 54px;
  margin-bottom: 32px;
}
.timeline-item:last-child {
  margin-bottom: 0;
}
.timeline-dot {
  position: absolute;
  left: 12px;
  top: 4px;
  width: 18px;
  height: 18px;
  background: #ffffff;
  border: 4px solid var(--primary);
  border-radius: 50%;
}
.timeline-card {
  background: #ffffff;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 20px 24px;
  box-shadow: var(--shadow-sm);
}
.timeline-version {
  font-size: 13px;
  font-weight: 700;
  color: var(--primary);
  margin-bottom: 6px;
}
.timeline-title {
  font-size: 16px;
  font-weight: 700;
  color: var(--text-main);
  margin-bottom: 8px;
}
.timeline-desc {
  font-size: 14px;
  color: var(--text-muted);
}

/* 5. 资讯与技术列表 */
.articles-split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 28px;
}
.article-feature-card {
  background: #ffffff;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-color);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
}
.article-feature-img {
  height: 220px;
  width: 100%;
}
.article-feature-body {
  padding: 24px;
}
.article-feature-body h3 {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 10px;
  color: var(--text-main);
}
.article-feature-body p {
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.6;
}
.article-list-wrap {
  display: flex;
  flex-direction: column;
  gap: 16px;
}
.article-row-item {
  background: #ffffff;
  border: 1px solid var(--border-color);
  padding: 18px 20px;
  border-radius: var(--radius-md);
  display: flex;
  justify-content: space-between;
  align-items: center;
  transition: all 0.25s ease;
}
.article-row-item:hover {
  border-color: var(--border-focus);
  transform: translateX(4px);
}
.article-row-title {
  font-size: 15px;
  font-weight: 600;
  color: var(--text-main);
  margin-bottom: 4px;
}
.article-row-meta {
  font-size: 12px;
  color: var(--text-light);
}

/* 6. 平台保障 */
.security-banner {
  background: linear-gradient(135deg, #fff3ee 0%, #ffffff 100%);
  border: 1px solid #fed7aa;
  border-radius: var(--radius-lg);
  padding: 36px 40px;
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 32px;
  align-items: center;
}
.security-banner h3 {
  font-size: 22px;
  font-weight: 700;
  color: var(--text-main);
  margin-bottom: 12px;
}
.security-banner p {
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.7;
}
.security-specs {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
}
.spec-box {
  background: #ffffff;
  border: 1px solid rgba(240,90,40,0.15);
  border-radius: var(--radius-md);
  padding: 16px;
  text-align: center;
}
.spec-box strong {
  display: block;
  font-size: 16px;
  color: var(--primary);
  margin-bottom: 4px;
}
.spec-box span {
  font-size: 12px;
  color: var(--text-muted);
}

/* 7. 快速解答 FAQ */
.faq-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}
.faq-card {
  background: #ffffff;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 22px 24px;
  box-shadow: var(--shadow-sm);
}
.faq-q {
  font-size: 16px;
  font-weight: 700;
  color: var(--text-main);
  margin-bottom: 8px;
  display: flex;
  align-items: flex-start;
  gap: 8px;
}
.faq-q::before {
  content: "Q";
  color: var(--primary);
  font-weight: 800;
}
.faq-a {
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.65;
  padding-left: 20px;
}

/* 8. 转化表单与诊断 */
.cta-form-section {
  background: #ffffff;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 44px;
  box-shadow: var(--shadow-md);
  text-align: center;
  max-width: 820px;
  margin: 0 auto;
}
.cta-form-section h3 {
  font-size: 24px;
  font-weight: 700;
  margin-bottom: 12px;
}
.cta-form-section p {
  font-size: 14px;
  color: var(--text-muted);
  margin-bottom: 28px;
}
.form-input-group {
  display: flex;
  gap: 12px;
  max-width: 540px;
  margin: 0 auto 16px;
}
.form-select {
  flex: 1;
  height: 48px;
  border-radius: var(--radius-full);
  border: 1px solid #d1d5db;
  padding: 0 18px;
  font-size: 14px;
  outline: none;
  background-color: #fff;
  transition: border-color 0.2s;
}
.form-select:focus {
  border-color: var(--primary);
}
.btn-submit {
  height: 48px;
  padding: 0 28px;
  border-radius: var(--radius-full);
  background: var(--primary);
  color: #fff;
  border: none;
  font-weight: 600;
  font-size: 14px;
  cursor: pointer;
  transition: background 0.2s;
}
.btn-submit:hover {
  background: var(--primary-hover);
}
.form-tips {
  font-size: 12px;
  color: var(--text-light);
}

/* 页脚样式保持全局一致 */
.site-footer {
  background: #111827;
  color: #9ca3af;
  padding: 60px 0 30px;
  font-size: 14px;
  margin-top: 60px;
  border-top: 1px solid #1f2937;
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 40px;
}
.footer-brand h4 {
  color: #ffffff;
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 14px;
}
.footer-brand p {
  line-height: 1.7;
  margin-bottom: 16px;
  font-size: 13px;
}
.footer-col h5 {
  color: #ffffff;
  font-size: 15px;
  font-weight: 600;
  margin-bottom: 16px;
}
.footer-links {
  list-style: none;
}
.footer-links li {
  margin-bottom: 10px;
}
.footer-links li a {
  color: #9ca3af;
  font-size: 13px;
  transition: color 0.2s;
}
.footer-links li a:hover {
  color: var(--primary);
}
.footer-bottom {
  border-top: 1px solid #1f2937;
  padding-top: 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 12px;
  color: #6b7280;
  flex-wrap: wrap;
  gap: 12px;
}

/* 响应式断点控制 */
@media (max-width: 1024px) {
  .metrics-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .matrix-grid {
    grid-template-columns: 1fr;
  }
  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }
}
@media (max-width: 768px) {
  .nav-links {
    display: none;
  }
  .hero-kv-content h1 {
    font-size: 28px;
  }
  .articles-split {
    grid-template-columns: 1fr;
  }
  .security-banner {
    grid-template-columns: 1fr;
    padding: 24px;
  }
  .faq-grid {
    grid-template-columns: 1fr;
  }
  .form-input-group {
    flex-direction: column;
  }
  .footer-grid {
    grid-template-columns: 1fr;
  }
  .footer-bottom {
    flex-direction: column;
    text-align: center;
  }
}

/* roulang page: category4 */
:root {
      --primary: #f05a28;
      --primary-hover: #d94b1c;
      --primary-light: #fff3ee;
      --text-main: #1f2937;
      --text-muted: #6b7280;
      --text-light: #9ca3af;
      --bg-page: #fbfbfd;
      --bg-card: #ffffff;
      --border-color: #f0f0f4;
      --border-focus: #fbd6c9;
      --radius-sm: 8px;
      --radius-md: 14px;
      --radius-lg: 20px;
      --radius-full: 9999px;
      --shadow-sm: 0 2px 8px rgba(0,0,0,0.04);
      --shadow-md: 0 8px 24px rgba(0,0,0,0.06);
      --shadow-lg: 0 16px 36px rgba(240,90,40,0.12);
      --font-stack: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
    }
    * {
      box-sizing: border-box;
      margin: 0;
      padding: 0;
    }
    body {
      font-family: var(--font-stack);
      color: var(--text-main);
      background-color: var(--bg-page);
      line-height: 1.65;
      font-size: 15px;
      overflow-x: hidden;
      -webkit-font-smoothing: antialiased;
    }
    a {
      color: inherit;
      text-decoration: none;
      transition: color 0.25s, opacity 0.25s;
    }
    img {
      max-width: 100%;
      height: auto;
      display: block;
      object-fit: cover;
    }
    .container {
      width: 100%;
      max-width: 1200px;
      margin: 0 auto;
      padding: 0 20px;
    }
    .capsule-header-wrapper {
      position: sticky;
      top: 16px;
      z-index: 1000;
      padding: 0 16px;
      width: 100%;
      max-width: 1100px;
      margin: 0 auto;
    }
    .capsule-header {
      background: rgba(255, 255, 255, 0.92);
      backdrop-filter: blur(12px);
      -webkit-backdrop-filter: blur(12px);
      border: 1px solid rgba(229, 231, 235, 0.8);
      border-radius: var(--radius-full);
      padding: 10px 24px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      box-shadow: 0 6px 20px rgba(0, 0, 0, 0.05);
    }
    .brand-logo {
      display: flex;
      align-items: center;
      gap: 10px;
      font-size: 17px;
      font-weight: 700;
      color: var(--text-main);
      letter-spacing: -0.3px;
    }
    .brand-logo-icon {
      width: 32px;
      height: 32px;
      background: var(--primary);
      border-radius: 9px;
      display: flex;
      align-items: center;
      justify-content: center;
      color: #fff;
      font-weight: 900;
      font-size: 15px;
    }
    .nav-links {
      display: flex;
      align-items: center;
      gap: 22px;
      list-style: none;
    }
    .nav-links li a {
      font-size: 14px;
      color: var(--text-muted);
      font-weight: 500;
      position: relative;
      padding: 4px 2px;
    }
    .nav-links li a:hover,
    .nav-links li a.active {
      color: var(--primary);
    }
    .nav-links li a.active::after {
      content: '';
      position: absolute;
      bottom: -2px;
      left: 0;
      width: 100%;
      height: 2px;
      background: var(--primary);
      border-radius: 2px;
    }
    .nav-actions .btn-download {
      background: var(--primary);
      color: #ffffff;
      padding: 8px 18px;
      border-radius: var(--radius-full);
      font-size: 13px;
      font-weight: 600;
      transition: all 0.25s ease;
      display: inline-flex;
      align-items: center;
      gap: 6px;
    }
    .nav-actions .btn-download:hover {
      background: var(--primary-hover);
      box-shadow: 0 4px 14px rgba(240, 90, 40, 0.3);
      transform: translateY(-1px);
    }
    .section-wrap {
      padding: 64px 0;
      position: relative;
    }
    .section-bg-muted {
      background-color: #f7f8fa;
    }
    .section-bg-white {
      background-color: #ffffff;
    }
    .section-header {
      margin-bottom: 36px;
    }
    .section-tag {
      display: inline-block;
      font-size: 12px;
      font-weight: 600;
      color: var(--primary);
      background: var(--primary-light);
      padding: 4px 12px;
      border-radius: var(--radius-full);
      margin-bottom: 12px;
      letter-spacing: 0.5px;
    }
    .section-title {
      font-size: 26px;
      font-weight: 700;
      color: var(--text-main);
      line-height: 1.35;
      margin-bottom: 12px;
      letter-spacing: -0.5px;
    }
    .section-desc {
      font-size: 15px;
      color: var(--text-muted);
      max-width: 760px;
      line-height: 1.65;
    }
    /* Hero: 前后对比首屏 */
    .hero-compare {
      padding: 50px 0 70px;
      background: linear-gradient(180deg, #fef5f0 0%, #fbfbfd 100%);
      border-bottom: 1px solid var(--border-color);
    }
    .hero-compare-grid {
      display: grid;
      grid-template-columns: 1.05fr 1fr;
      gap: 40px;
      align-items: center;
    }
    .hero-compare-content h1 {
      font-size: 36px;
      font-weight: 800;
      line-height: 1.25;
      color: #111827;
      margin-bottom: 16px;
      letter-spacing: -0.8px;
    }
    .hero-compare-content p {
      font-size: 15px;
      color: var(--text-muted);
      line-height: 1.7;
      margin-bottom: 24px;
    }
    .compare-side-by-side {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 16px;
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-lg);
      padding: 20px;
      box-shadow: var(--shadow-md);
    }
    .compare-panel {
      padding: 16px;
      border-radius: var(--radius-md);
    }
    .compare-before {
      background: #fbfbfd;
      border: 1px dashed #d1d5db;
    }
    .compare-after {
      background: var(--primary-light);
      border: 1px solid #fed7aa;
    }
    .compare-panel-title {
      font-size: 13px;
      font-weight: 700;
      margin-bottom: 10px;
      display: flex;
      align-items: center;
      gap: 6px;
    }
    .compare-before .compare-panel-title {
      color: #6b7280;
    }
    .compare-after .compare-panel-title {
      color: var(--primary);
    }
    .compare-list {
      list-style: none;
      font-size: 13px;
      line-height: 1.7;
    }
    .compare-before .compare-list li {
      color: #4b5563;
    }
    .compare-before .compare-list li::before {
      content: "✕ ";
      color: #9ca3af;
      font-weight: bold;
    }
    .compare-after .compare-list li {
      color: #1f2937;
    }
    .compare-after .compare-list li::before {
      content: "✓ ";
      color: var(--primary);
      font-weight: bold;
    }
    .hero-cta-btns {
      display: flex;
      gap: 14px;
      margin-top: 26px;
      flex-wrap: wrap;
    }
    .btn-solid {
      background: var(--primary);
      color: #fff;
      padding: 12px 26px;
      border-radius: var(--radius-full);
      font-size: 14px;
      font-weight: 600;
      display: inline-flex;
      align-items: center;
      gap: 6px;
      box-shadow: 0 4px 14px rgba(240, 90, 40, 0.25);
      transition: all 0.2s ease;
    }
    .btn-solid:hover {
      background: var(--primary-hover);
      transform: translateY(-1px);
    }
    .btn-outline {
      background: #ffffff;
      color: var(--text-main);
      border: 1px solid var(--border-color);
      padding: 12px 22px;
      border-radius: var(--radius-full);
      font-size: 14px;
      font-weight: 600;
      transition: all 0.2s ease;
    }
    .btn-outline:hover {
      border-color: var(--primary);
      color: var(--primary);
    }
    /* 指标看板与概览 */
    .metric-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
    }
    .metric-card {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 22px;
      box-shadow: var(--shadow-sm);
    }
    .metric-val {
      font-size: 32px;
      font-weight: 800;
      color: var(--primary);
      line-height: 1.1;
      margin-bottom: 6px;
    }
    .metric-name {
      font-size: 14px;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 6px;
    }
    .metric-desc {
      font-size: 12px;
      color: var(--text-muted);
      line-height: 1.5;
    }
    /* 版本迭代卡片流 */
    .timeline-stream {
      display: flex;
      flex-direction: column;
      gap: 24px;
    }
    .release-card {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-lg);
      padding: 28px;
      box-shadow: var(--shadow-sm);
      display: grid;
      grid-template-columns: 280px 1fr;
      gap: 32px;
      transition: border-color 0.2s, box-shadow 0.2s;
    }
    .release-card:hover {
      border-color: var(--border-focus);
      box-shadow: var(--shadow-md);
    }
    .release-meta-panel {
      border-right: 1px solid var(--border-color);
      padding-right: 24px;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }
    .release-badge-wrap {
      display: flex;
      align-items: center;
      gap: 8px;
      margin-bottom: 12px;
    }
    .release-version {
      font-size: 24px;
      font-weight: 800;
      color: #111827;
    }
    .tag-status {
      font-size: 11px;
      font-weight: 700;
      padding: 2px 8px;
      border-radius: var(--radius-full);
      background: #ecfdf5;
      color: #059669;
    }
    .tag-lts {
      background: #eff6ff;
      color: #2563eb;
    }
    .release-date-info {
      font-size: 13px;
      color: var(--text-muted);
      margin-bottom: 14px;
    }
    .release-hash-box {
      background: #f9fafb;
      padding: 10px 12px;
      border-radius: var(--radius-sm);
      font-family: monospace;
      font-size: 11px;
      color: #4b5563;
      word-break: break-all;
      border: 1px solid #e5e7eb;
    }
    .release-hash-box span {
      display: block;
      color: var(--text-light);
      font-family: var(--font-stack);
      font-size: 10px;
      margin-bottom: 2px;
      text-transform: uppercase;
    }
    .release-log-body h4 {
      font-size: 17px;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 14px;
    }
    .release-log-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 16px;
    }
    .log-item-group {
      background: #fdfdfd;
      border: 1px solid #f3f4f6;
      border-radius: var(--radius-sm);
      padding: 14px 16px;
    }
    .log-item-group h5 {
      font-size: 13px;
      font-weight: 700;
      color: var(--primary);
      margin-bottom: 8px;
    }
    .log-item-group ul {
      list-style: none;
      font-size: 13px;
      color: #4b5563;
      line-height: 1.6;
    }
    .log-item-group ul li::before {
      content: "•";
      color: var(--primary);
      margin-right: 6px;
    }
    /* 核心升级维度对比 */
    .spec-table-card {
      background: #ffffff;
      border-radius: var(--radius-lg);
      border: 1px solid var(--border-color);
      overflow: hidden;
      box-shadow: var(--shadow-sm);
    }
    .spec-row {
      display: grid;
      grid-template-columns: 180px 1fr 1fr 1fr;
      padding: 16px 24px;
      border-bottom: 1px solid #f3f4f6;
      font-size: 13.5px;
      align-items: center;
    }
    .spec-row:last-child {
      border-bottom: none;
    }
    .spec-header {
      background: #f8fafc;
      font-weight: 700;
      color: #374151;
      font-size: 13px;
    }
    .spec-name {
      font-weight: 700;
      color: var(--text-main);
    }
    .spec-current {
      color: var(--primary);
      font-weight: 600;
    }
    /* 补丁修复与安全保障 */
    .assurance-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }
    .assurance-card {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 24px;
      box-shadow: var(--shadow-sm);
    }
    .assurance-icon {
      width: 42px;
      height: 42px;
      background: var(--primary-light);
      color: var(--primary);
      border-radius: 10px;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 20px;
      font-weight: bold;
      margin-bottom: 16px;
    }
    .assurance-title {
      font-size: 16px;
      font-weight: 700;
      margin-bottom: 8px;
    }
    .assurance-text {
      font-size: 13.5px;
      color: var(--text-muted);
      line-height: 1.6;
    }
    /* 图文解读区 */
    .article-media-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 32px;
      align-items: center;
    }
    .article-media-thumb {
      border-radius: var(--radius-lg);
      overflow: hidden;
      box-shadow: var(--shadow-md);
      height: 320px;
    }
    .article-media-thumb img {
      width: 100%;
      height: 100%;
      object-fit: cover;
    }
    .article-media-info h3 {
      font-size: 22px;
      font-weight: 700;
      margin-bottom: 14px;
      line-height: 1.4;
    }
    .article-media-info p {
      font-size: 14.5px;
      color: var(--text-muted);
      margin-bottom: 16px;
      line-height: 1.7;
    }
    .feature-points {
      list-style: none;
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 12px;
      margin-top: 18px;
    }
    .feature-point-item {
      font-size: 13.5px;
      font-weight: 600;
      color: #374151;
      display: flex;
      align-items: center;
      gap: 8px;
    }
    .feature-point-item::before {
      content: "✔";
      color: var(--primary);
      font-size: 12px;
    }
    /* 升级提示问答板块 */
    .update-faq-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 20px;
    }
    .update-faq-card {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 22px;
    }
    .update-faq-card h4 {
      font-size: 15px;
      font-weight: 700;
      margin-bottom: 10px;
      color: var(--text-main);
      display: flex;
      align-items: center;
      gap: 8px;
    }
    .update-faq-card h4::before {
      content: "Q";
      color: var(--primary);
      font-weight: 800;
    }
    .update-faq-card p {
      font-size: 13.5px;
      color: var(--text-muted);
      line-height: 1.65;
    }
    /* 转化卡片区 */
    .cta-banner {
      background: linear-gradient(135deg, #2b2d42 0%, #1f2937 100%);
      border-radius: var(--radius-lg);
      padding: 40px 48px;
      color: #ffffff;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 32px;
      box-shadow: var(--shadow-lg);
    }
    .cta-left h3 {
      font-size: 24px;
      font-weight: 800;
      margin-bottom: 10px;
      letter-spacing: -0.5px;
    }
    .cta-left p {
      font-size: 14px;
      color: #cbd5e1;
      max-width: 620px;
      line-height: 1.6;
    }
    .cta-right {
      flex-shrink: 0;
    }
    /* 页脚 */
    .site-footer {
      background-color: #111827;
      color: #d1d5db;
      padding: 60px 0 30px;
      border-top: 1px solid #1f2937;
    }
    .footer-grid {
      display: grid;
      grid-template-columns: 1.5fr 1fr 1fr 1fr;
      gap: 40px;
      margin-bottom: 48px;
    }
    .footer-brand h4 {
      color: #ffffff;
      font-size: 18px;
      font-weight: 700;
      margin-bottom: 16px;
    }
    .footer-brand p {
      font-size: 13.5px;
      color: #9ca3af;
      line-height: 1.7;
      margin-bottom: 16px;
      max-width: 320px;
    }
    .footer-col h5 {
      color: #ffffff;
      font-size: 14px;
      font-weight: 600;
      margin-bottom: 16px;
      letter-spacing: 0.5px;
    }
    .footer-links {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 10px;
    }
    .footer-links li a {
      font-size: 13px;
      color: #9ca3af;
    }
    .footer-links li a:hover {
      color: var(--primary);
    }
    .footer-bottom {
      border-top: 1px solid #1f2937;
      padding-top: 24px;
      display: flex;
      justify-content: space-between;
      align-items: center;
      font-size: 12px;
      color: #6b7280;
      flex-wrap: wrap;
      gap: 12px;
    }
    /* 响应式断点 */
    @media (max-width: 1024px) {
      .metric-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .release-card {
        grid-template-columns: 1fr;
        gap: 20px;
      }
      .release-meta-panel {
        border-right: none;
        border-bottom: 1px solid var(--border-color);
        padding-right: 0;
        padding-bottom: 18px;
      }
      .spec-row {
        grid-template-columns: 140px 1fr 1fr 1fr;
      }
      .footer-grid {
        grid-template-columns: repeat(2, 1fr);
      }
    }
    @media (max-width: 768px) {
      .hero-compare-grid {
        grid-template-columns: 1fr;
      }
      .compare-side-by-side {
        grid-template-columns: 1fr;
      }
      .article-media-grid {
        grid-template-columns: 1fr;
      }
      .article-media-thumb {
        height: 220px;
      }
      .release-log-grid {
        grid-template-columns: 1fr;
      }
      .assurance-grid {
        grid-template-columns: 1fr;
      }
      .update-faq-grid {
        grid-template-columns: 1fr;
      }
      .cta-banner {
        flex-direction: column;
        align-items: flex-start;
        padding: 30px 24px;
      }
      .capsule-header {
        padding: 8px 16px;
      }
      .nav-links {
        display: none;
      }
      .spec-table-card {
        overflow-x: auto;
      }
      .spec-row {
        min-width: 580px;
      }
    }