/* roulang page: index */
:root {
      --primary-color: #2154c5;
      --primary-dark: #163c93;
      --accent-color: #1a4199;
      --text-main: #181c28;
      --text-sub: #5f6b80;
      --text-light: #8e9bb0;
      --bg-page: #f6f8fa;
      --bg-white: #ffffff;
      --border-color: #e4e8ef;
      --border-light: #edf1f7;
    }

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

    body {
      background-color: var(--bg-page);
      color: var(--text-main);
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
      font-size: 14px;
      line-height: 1.6;
      -webkit-font-smoothing: antialiased;
    }

    a {
      color: inherit;
      text-decoration: none;
      transition: color 0.2s ease, opacity 0.2s ease;
    }
    a:hover {
      color: var(--primary-color);
    }

    /* 顶部细条 */
    .site-top-bar {
      background: #111a2e;
      color: #9aa8bd;
      font-size: 12px;
      padding: 6px 0;
      border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    }
    .site-top-bar .inner-wrap {
      max-width: 1200px;
      margin: 0 auto;
      padding: 0 16px;
      display: flex;
      justify-content: space-between;
      align-items: center;
    }

    /* 主头部 */
    .site-header {
      background: var(--bg-white);
      border-bottom: 1px solid var(--border-color);
    }
    .header-main {
      max-width: 1200px;
      margin: 0 auto;
      padding: 18px 16px;
      display: flex;
      align-items: center;
      justify-content: space-between;
    }
    .brand-wrap {
      display: flex;
      align-items: center;
      gap: 12px;
    }
    .brand-logo-icon {
      width: 40px;
      height: 40px;
      background: var(--primary-color);
      color: #fff;
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 800;
      font-size: 20px;
      border-radius: 4px;
      letter-spacing: -1px;
    }
    .brand-text-box h1 {
      font-size: 22px;
      font-weight: 800;
      color: var(--text-main);
      line-height: 1.1;
      margin: 0;
      letter-spacing: -0.5px;
    }
    .brand-text-box .sub-slogan {
      font-size: 11px;
      color: var(--text-light);
      margin-top: 3px;
      letter-spacing: 0.5px;
    }

    .header-search {
      display: flex;
      align-items: center;
      background: #f1f4f9;
      border: 1px solid var(--border-color);
      border-radius: 2px;
      padding: 6px 12px;
      width: 320px;
    }
    .header-search input {
      border: none;
      background: transparent;
      outline: none;
      font-size: 13px;
      color: var(--text-main);
      width: 100%;
      margin: 0;
      box-shadow: none;
      height: auto;
    }
    .header-search svg {
      fill: var(--text-light);
      width: 16px;
      height: 16px;
      margin-right: 8px;
    }

    /* 导航栏 */
    .site-nav-bar {
      border-top: 1px solid var(--border-light);
      background: #fff;
    }
    .nav-inner {
      max-width: 1200px;
      margin: 0 auto;
      padding: 0 16px;
      display: flex;
      justify-content: space-between;
      align-items: center;
    }
    .nav-links {
      display: flex;
      list-style: none;
      margin: 0;
    }
    .nav-links li a {
      display: block;
      padding: 13px 20px;
      font-size: 14px;
      font-weight: 600;
      color: #3b4559;
      position: relative;
    }
    .nav-links li.active a,
    .nav-links li a:hover {
      color: var(--primary-color);
    }
    .nav-links li.active a::after {
      content: '';
      position: absolute;
      bottom: 0;
      left: 20px;
      right: 20px;
      height: 3px;
      background: var(--primary-color);
    }
    .nav-extra-link {
      font-size: 13px;
      color: var(--text-sub);
      display: inline-flex;
      align-items: center;
      gap: 4px;
    }

    /* 页面主容器 */
    .page-main-wrap {
      max-width: 1200px;
      margin: 24px auto;
      padding: 0 16px;
    }

    /* 参考图风格的置顶栏目矩阵 */
    .market-index-bar {
      background: var(--bg-white);
      border: 1px solid var(--border-color);
      display: grid;
      grid-template-columns: 240px 1fr 1fr 160px;
      margin-bottom: 24px;
    }
    .market-title-cell {
      padding: 18px 20px;
      background: #f8fafc;
      border-right: 1px solid var(--border-color);
      display: flex;
      flex-direction: column;
      justify-content: center;
    }
    .market-title-cell .badge {
      display: inline-block;
      align-self: flex-start;
      background: #192742;
      color: #fff;
      font-size: 11px;
      padding: 3px 8px;
      margin-bottom: 8px;
      border-radius: 2px;
      font-weight: 500;
    }
    .market-title-cell h2 {
      font-size: 20px;
      font-weight: 800;
      color: var(--text-main);
      margin: 0;
      line-height: 1.2;
    }
    .market-title-cell p {
      font-size: 12px;
      color: var(--text-light);
      margin-top: 4px;
      margin-bottom: 0;
    }

    .market-cell-item {
      padding: 18px 20px;
      border-right: 1px solid var(--border-color);
      position: relative;
      display: flex;
      flex-direction: column;
      justify-content: center;
    }
    .market-cell-item .cell-num {
      font-size: 11px;
      font-weight: 700;
      color: var(--text-light);
      margin-bottom: 4px;
    }
    .market-cell-item .cell-head {
      display: flex;
      align-items: center;
      justify-content: space-between;
    }
    .market-cell-item .cell-name {
      font-size: 15px;
      font-weight: 700;
      color: var(--text-main);
    }
    .market-cell-item .cell-desc {
      font-size: 12px;
      color: var(--text-sub);
      margin-top: 4px;
    }
    .market-cell-item .cell-arrow {
      color: var(--text-light);
      font-size: 14px;
    }

    .market-btn-cell {
      background: var(--primary-color);
      color: #fff;
      display: flex;
      align-items: center;
      justify-content: space-between;
      padding: 0 24px;
      font-size: 15px;
      font-weight: 700;
      cursor: pointer;
      transition: background 0.2s;
    }
    .market-btn-cell:hover {
      background: var(--primary-dark);
      color: #fff;
    }

    /* 双列核心内容板块 */
    .dual-columns-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 24px;
      margin-bottom: 30px;
    }
    .column-panel {
      background: var(--bg-white);
      border: 1px solid var(--border-color);
      padding: 24px;
    }
    .panel-header-line {
      display: flex;
      align-items: center;
      justify-content: space-between;
      margin-bottom: 6px;
    }
    .panel-title-text {
      display: flex;
      align-items: center;
      gap: 8px;
    }
    .panel-title-text::before {
      content: '';
      display: inline-block;
      width: 4px;
      height: 18px;
      background: var(--primary-color);
    }
    .panel-title-text h3 {
      font-size: 18px;
      font-weight: 800;
      color: var(--text-main);
      margin: 0;
    }
    .panel-sub-desc {
      font-size: 12px;
      color: var(--text-light);
      margin-bottom: 16px;
    }

    /* 大图精选卡片 (参考图轮播式大卡) */
    .hero-media-card {
      position: relative;
      height: 250px;
      background-size: cover;
      background-position: center;
      border-radius: 2px;
      overflow: hidden;
      margin-bottom: 20px;
      display: flex;
      flex-direction: column;
      justify-content: flex-end;
      padding: 24px;
      color: #fff;
    }
    .hero-media-card::before {
      content: '';
      position: absolute;
      top: 0; left: 0; right: 0; bottom: 0;
      background: linear-gradient(180deg, rgba(17, 24, 39, 0.2) 0%, rgba(10, 15, 29, 0.85) 100%);
      z-index: 1;
    }
    .hero-media-card > * {
      position: relative;
      z-index: 2;
    }
    .hero-media-title {
      font-size: 21px;
      font-weight: 700;
      line-height: 1.35;
      color: #ffffff;
      margin-bottom: 16px;
      text-shadow: 0 1px 3px rgba(0,0,0,0.5);
    }
    .hero-card-meta {
      display: flex;
      align-items: center;
      justify-content: space-between;
      font-size: 12px;
      color: rgba(255, 255, 255, 0.7);
      border-top: 1px solid rgba(255, 255, 255, 0.15);
      padding-top: 10px;
    }
    .media-controls {
      display: flex;
      align-items: center;
      gap: 12px;
    }
    .ctrl-btn {
      width: 22px;
      height: 22px;
      border-radius: 50%;
      border: 1px solid rgba(255, 255, 255, 0.4);
      display: inline-flex;
      align-items: center;
      justify-content: center;
      font-size: 11px;
      cursor: pointer;
    }

    /* 列表条目 */
    .news-compact-list {
      list-style: none;
      margin: 0;
    }
    .news-compact-item {
      padding: 13px 0;
      border-bottom: 1px solid var(--border-light);
    }
    .news-compact-item:last-child {
      border-bottom: none;
    }
    .news-item-link {
      display: flex;
      justify-content: space-between;
      align-items: baseline;
      gap: 16px;
    }
    .news-item-title {
      font-size: 14px;
      font-weight: 600;
      color: var(--text-main);
      overflow: hidden;
      text-overflow: ellipsis;
      white-space: nowrap;
      flex: 1;
    }
    .news-item-title:hover {
      color: var(--primary-color);
    }
    .news-item-meta {
      display: flex;
      align-items: center;
      gap: 12px;
      font-size: 12px;
      color: var(--text-light);
      white-space: nowrap;
    }

    .column-more-link {
      display: flex;
      align-items: center;
      justify-content: space-between;
      padding-top: 16px;
      margin-top: 8px;
      border-top: 1px solid var(--border-light);
      font-size: 13px;
      font-weight: 600;
      color: var(--primary-color);
    }

    /* 客户端下载与特性横幅 (App落地支撑) */
    .download-app-banner {
      background: linear-gradient(90deg, #162444 0%, #1f3669 100%);
      border-radius: 2px;
      padding: 36px 40px;
      color: #fff;
      display: flex;
      align-items: center;
      justify-content: space-between;
      margin-bottom: 30px;
    }
    .app-info-left {
      max-width: 650px;
    }
    .app-badge-tag {
      display: inline-block;
      background: rgba(255, 255, 255, 0.15);
      font-size: 11px;
      padding: 3px 10px;
      border-radius: 2px;
      margin-bottom: 12px;
      color: #8bb3ff;
      letter-spacing: 0.5px;
    }
    .app-info-left h2 {
      font-size: 26px;
      font-weight: 800;
      line-height: 1.3;
      margin-bottom: 10px;
      color: #fff;
    }
    .app-info-left p {
      font-size: 13px;
      color: #b0c2e6;
      line-height: 1.6;
      margin-bottom: 0;
    }
    .app-action-right {
      display: flex;
      flex-direction: column;
      gap: 12px;
      min-width: 220px;
    }
    .btn-download-main {
      background: #2563eb;
      color: #fff;
      text-align: center;
      padding: 12px 24px;
      font-size: 14px;
      font-weight: 700;
      border-radius: 2px;
      display: flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      box-shadow: 0 4px 14px rgba(37, 99, 235, 0.4);
    }
    .btn-download-main:hover {
      background: #1d4ed8;
      color: #fff;
    }
    .btn-download-secondary {
      background: rgba(255, 255, 255, 0.08);
      border: 1px solid rgba(255, 255, 255, 0.2);
      color: #e2e8f0;
      text-align: center;
      padding: 10px 24px;
      font-size: 13px;
      font-weight: 600;
      border-radius: 2px;
    }
    .btn-download-secondary:hover {
      background: rgba(255, 255, 255, 0.15);
      color: #fff;
    }

    /* 底部区域 (严格还原参考图多栏架构) */
    .site-footer {
      background: #f1f4f8;
      border-top: 1px solid var(--border-color);
      padding: 44px 0 30px;
      margin-top: 40px;
    }
    .footer-container {
      max-width: 1200px;
      margin: 0 auto;
      padding: 0 16px;
    }
    .footer-top-grid {
      display: grid;
      grid-template-columns: 2fr 1fr 1fr;
      gap: 40px;
      padding-bottom: 30px;
      border-bottom: 1px solid var(--border-color);
    }
    .footer-brand h4 {
      font-size: 18px;
      font-weight: 800;
      color: var(--text-main);
      display: flex;
      align-items: center;
      gap: 8px;
      margin-bottom: 12px;
    }
    .footer-brand p {
      font-size: 13px;
      color: var(--text-sub);
      max-width: 380px;
      line-height: 1.6;
    }
    .footer-nav-col h5 {
      font-size: 13px;
      font-weight: 700;
      color: var(--text-light);
      margin-bottom: 14px;
      letter-spacing: 0.5px;
    }
    .footer-nav-col ul {
      list-style: none;
      margin: 0;
    }
    .footer-nav-col ul li {
      margin-bottom: 8px;
    }
    .footer-nav-col ul li a {
      font-size: 13px;
      color: var(--text-sub);
    }
    .footer-nav-col ul li a:hover {
      color: var(--primary-color);
    }

    .footer-bottom-line {
      display: flex;
      justify-content: space-between;
      align-items: center;
      padding-top: 24px;
      font-size: 12px;
      color: var(--text-light);
    }

    /* 移动端与平板响应式断点 */
    @media screen and (max-width: 1024px) {
      .market-index-bar {
        grid-template-columns: 1fr 1fr;
      }
      .market-title-cell {
        grid-column: span 2;
        border-right: none;
        border-bottom: 1px solid var(--border-color);
      }
      .market-btn-cell {
        padding: 16px 20px;
      }
      .dual-columns-grid {
        gap: 16px;
      }
      .download-app-banner {
        flex-direction: column;
        align-items: flex-start;
        gap: 24px;
      }
      .app-action-right {
        width: 100%;
        flex-direction: row;
      }
      .app-action-right a {
        flex: 1;
      }
    }

    @media screen and (max-width: 768px) {
      .site-top-bar {
        display: none;
      }
      .header-main {
        flex-direction: column;
        align-items: flex-start;
        gap: 14px;
      }
      .header-search {
        width: 100%;
      }
      .nav-inner {
        overflow-x: auto;
      }
      .nav-links {
        white-space: nowrap;
      }
      .nav-extra-link {
        display: none;
      }
      .market-index-bar {
        grid-template-columns: 1fr;
      }
      .market-title-cell {
        grid-column: span 1;
      }
      .market-cell-item {
        border-right: none;
        border-bottom: 1px solid var(--border-color);
      }
      .dual-columns-grid {
        grid-template-columns: 1fr;
      }
      .footer-top-grid {
        grid-template-columns: 1fr;
        gap: 24px;
      }
      .footer-bottom-line {
        flex-direction: column;
        align-items: flex-start;
        gap: 8px;
      }
      .app-action-right {
        flex-direction: column;
      }
    }

    @media screen and (max-width: 520px) {
      .hero-media-card {
        height: 200px;
        padding: 16px;
      }
      .hero-media-title {
        font-size: 17px;
      }
      .app-info-left h2 {
        font-size: 20px;
      }
      .panel-title-text h3 {
        font-size: 16px;
      }
    }

/* roulang page: article */
:root {
      --primary-color: #2154c5;
      --primary-dark: #163c93;
      --accent-color: #1a4199;
      --text-main: #181c28;
      --text-sub: #5f6b80;
      --text-light: #8e9bb0;
      --bg-page: #f6f8fa;
      --bg-white: #ffffff;
      --border-color: #e4e8ef;
      --border-light: #edf1f7;
    }
    * {
      box-sizing: border-box;
      margin: 0;
      padding: 0;
    }
    body {
      background-color: var(--bg-page);
      color: var(--text-main);
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
      font-size: 14px;
      line-height: 1.6;
      -webkit-font-smoothing: antialiased;
    }
    a {
      color: inherit;
      text-decoration: none;
      transition: color 0.2s ease, opacity 0.2s ease;
    }
    a:hover {
      color: var(--primary-color);
    }
    
    /* 顶部通栏辅助条（严格还原参考图顶条） */
    .site-top-bar {
      background: #192742;
      color: #92a2bd;
      font-size: 12px;
      padding: 6px 0;
      border-bottom: 1px solid rgba(255,255,255,0.05);
    }
    .top-bar-inner {
      max-width: 1200px;
      margin: 0 auto;
      padding: 0 16px;
      display: flex;
      justify-content: space-between;
      align-items: center;
    }
    .top-bar-inner a {
      color: #cbd5e1;
    }

    /* 主头部 */
    .site-header {
      background: var(--bg-white);
      border-bottom: 1px solid var(--border-color);
    }
    .header-main {
      max-width: 1200px;
      margin: 0 auto;
      padding: 18px 16px;
      display: flex;
      align-items: center;
      justify-content: space-between;
    }
    .brand-wrap {
      display: flex;
      align-items: center;
      gap: 12px;
    }
    .brand-logo-icon {
      width: 40px;
      height: 40px;
      background: var(--primary-color);
      color: #fff;
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 800;
      font-size: 20px;
      border-radius: 4px;
      letter-spacing: -1px;
    }
    .brand-text-box h2 {
      font-size: 22px;
      font-weight: 800;
      color: var(--text-main);
      line-height: 1.1;
      margin: 0;
      letter-spacing: -0.5px;
    }
    .brand-text-box .sub-slogan {
      font-size: 11px;
      color: var(--text-light);
      margin-top: 3px;
      letter-spacing: 0.5px;
    }
    .header-search {
      display: flex;
      align-items: center;
      background: #f1f4f9;
      border: 1px solid var(--border-color);
      border-radius: 2px;
      padding: 6px 12px;
      width: 320px;
    }
    .header-search input {
      border: none;
      background: transparent;
      outline: none;
      font-size: 13px;
      color: var(--text-main);
      width: 100%;
      margin: 0;
      box-shadow: none;
      height: auto;
    }
    .header-search svg {
      fill: var(--text-light);
      width: 16px;
      height: 16px;
      margin-right: 8px;
      flex-shrink: 0;
    }

    /* 顶部导航 */
    .site-nav-bar {
      border-top: 1px solid var(--border-light);
      background: #fff;
    }
    .nav-inner {
      max-width: 1200px;
      margin: 0 auto;
      padding: 0 16px;
      display: flex;
      justify-content: space-between;
      align-items: center;
    }
    .nav-links {
      display: flex;
      list-style: none;
      margin: 0;
    }
    .nav-links li a {
      display: block;
      padding: 13px 20px;
      font-size: 14px;
      font-weight: 600;
      color: #3b4559;
      position: relative;
    }
    .nav-links li.active a,
    .nav-links li a:hover {
      color: var(--primary-color);
    }
    .nav-links li.active a::after {
      content: '';
      position: absolute;
      bottom: 0;
      left: 20px;
      right: 20px;
      height: 3px;
      background: var(--primary-color);
    }
    .nav-extra-link {
      font-size: 13px;
      color: var(--text-sub);
      display: inline-flex;
      align-items: center;
      gap: 4px;
      font-weight: 500;
    }

    /* 面包屑与快捷导航条 */
    .article-top-subnav {
      background: #fff;
      border-bottom: 1px solid var(--border-color);
      margin-bottom: 24px;
    }
    .article-subnav-inner {
      max-width: 1200px;
      margin: 0 auto;
      padding: 12px 16px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      font-size: 13px;
      color: var(--text-sub);
    }
    .breadcrumb-box {
      display: flex;
      align-items: center;
      gap: 8px;
    }
    .breadcrumb-box span.sep {
      color: var(--border-color);
    }
    .channel-fast-links {
      display: flex;
      gap: 16px;
      font-size: 12px;
    }
    .channel-fast-links a {
      color: var(--text-light);
    }
    .channel-fast-links a:hover {
      color: var(--primary-color);
    }

    /* 主体布局 */
    .article-page-container {
      max-width: 1200px;
      margin: 0 auto 40px;
      padding: 0 16px;
      display: grid;
      grid-template-columns: minmax(0, 1fr) 340px;
      gap: 24px;
    }

    /* 文章主体卡片 */
    .article-main-card {
      background: #fff;
      border: 1px solid var(--border-color);
      padding: 36px 40px;
      border-radius: 2px;
    }
    .article-header {
      border-bottom: 1px solid var(--border-light);
      padding-bottom: 20px;
      margin-bottom: 28px;
    }
    .article-category-badge {
      display: inline-block;
      background: #eef2fb;
      color: var(--primary-color);
      font-size: 12px;
      font-weight: 700;
      padding: 4px 10px;
      border-radius: 2px;
      margin-bottom: 14px;
    }
    .article-h1 {
      font-size: 28px;
      font-weight: 800;
      line-height: 1.4;
      color: var(--text-main);
      margin: 0 0 16px;
      letter-spacing: -0.5px;
    }
    .article-meta {
      display: flex;
      flex-wrap: wrap;
      align-items: center;
      gap: 18px;
      font-size: 13px;
      color: var(--text-light);
    }
    .article-meta span {
      display: inline-flex;
      align-items: center;
      gap: 6px;
    }
    .article-abstract {
      background: #f8fafc;
      border-left: 3px solid var(--primary-color);
      padding: 14px 18px;
      margin-bottom: 30px;
      font-size: 14px;
      color: #475569;
      line-height: 1.7;
    }

    /* 正文排版 */
    .article-body-content {
      font-size: 16px;
      line-height: 1.85;
      color: #24292f;
      word-break: break-word;
    }
    .article-body-content p {
      margin-bottom: 20px;
      text-align: justify;
    }
    .article-body-content h2 {
      font-size: 22px;
      font-weight: 700;
      margin: 36px 0 16px;
      padding-bottom: 8px;
      border-bottom: 1px solid var(--border-light);
      color: var(--text-main);
    }
    .article-body-content h3 {
      font-size: 18px;
      font-weight: 700;
      margin: 28px 0 14px;
      color: var(--text-main);
    }
    .article-body-content ul, 
    .article-body-content ol {
      margin: 0 0 20px 24px;
      color: #334155;
    }
    .article-body-content li {
      margin-bottom: 8px;
    }
    .article-body-content img {
      max-width: 100%;
      height: auto;
      display: block;
      margin: 24px auto;
      border-radius: 4px;
      border: 1px solid var(--border-light);
    }
    .article-body-content blockquote {
      margin: 20px 0;
      padding: 12px 20px;
      background: #f1f5f9;
      border-left: 4px solid #cbd5e1;
      color: #475569;
      font-style: normal;
    }

    /* 正文底部分享与指引 */
    .article-footer-cta {
      margin-top: 40px;
      padding: 24px;
      background: #f8fafc;
      border: 1px dashed var(--border-color);
      border-radius: 4px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 16px;
    }
    .cta-text-side h4 {
      font-size: 16px;
      font-weight: 700;
      margin: 0 0 4px;
      color: var(--text-main);
    }
    .cta-text-side p {
      font-size: 13px;
      color: var(--text-sub);
      margin: 0;
    }
    .cta-action-btn {
      background: var(--primary-color);
      color: #fff;
      padding: 10px 20px;
      border-radius: 3px;
      font-weight: 600;
      font-size: 14px;
      white-space: nowrap;
      display: inline-block;
    }
    .cta-action-btn:hover {
      background: var(--primary-dark);
      color: #fff;
    }

    /* 右侧边栏 */
    .sidebar-panel {
      display: flex;
      flex-direction: column;
      gap: 24px;
    }
    .side-widget {
      background: #fff;
      border: 1px solid var(--border-color);
      padding: 20px;
      border-radius: 2px;
    }
    .widget-head {
      display: flex;
      align-items: center;
      justify-content: space-between;
      padding-bottom: 12px;
      border-bottom: 1px solid var(--border-light);
      margin-bottom: 16px;
    }
    .widget-head h3 {
      font-size: 16px;
      font-weight: 700;
      margin: 0;
      position: relative;
      padding-left: 10px;
    }
    .widget-head h3::before {
      content: '';
      position: absolute;
      left: 0;
      top: 3px;
      bottom: 3px;
      width: 3px;
      background: var(--primary-color);
    }
    .widget-head a {
      font-size: 12px;
      color: var(--text-light);
    }

    /* 移动端 App 下载专区挂件 */
    .app-download-widget {
      background: linear-gradient(135deg, #182848 0%, #2154c5 100%);
      color: #fff;
      padding: 24px 20px;
      border-radius: 2px;
    }
    .app-download-widget h4 {
      font-size: 18px;
      font-weight: 700;
      color: #fff;
      margin: 0 0 8px;
    }
    .app-download-widget p {
      font-size: 12px;
      color: rgba(255,255,255,0.8);
      line-height: 1.6;
      margin-bottom: 16px;
    }
    .widget-download-btns {
      display: flex;
      flex-direction: column;
      gap: 10px;
    }
    .btn-side-down {
      display: flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      background: rgba(255,255,255,0.15);
      border: 1px solid rgba(255,255,255,0.3);
      color: #fff;
      padding: 8px 12px;
      font-size: 13px;
      font-weight: 600;
      border-radius: 2px;
      transition: background 0.2s;
    }
    .btn-side-down:hover {
      background: #fff;
      color: var(--primary-color);
    }

    /* 侧边列表条目 */
    .side-post-list {
      list-style: none;
      margin: 0;
    }
    .side-post-list li {
      padding: 10px 0;
      border-bottom: 1px solid var(--border-light);
    }
    .side-post-list li:last-child {
      border-bottom: none;
      padding-bottom: 0;
    }
    .side-post-list a {
      display: block;
      font-size: 13px;
      line-height: 1.5;
      color: #334155;
      font-weight: 500;
    }
    .side-post-list a:hover {
      color: var(--primary-color);
    }
    .side-post-list .item-time {
      font-size: 11px;
      color: var(--text-light);
      margin-top: 4px;
    }

    /* 404/未找到提示 */
    .not-found-card {
      text-align: center;
      padding: 60px 20px;
    }
    .not-found-card h3 {
      font-size: 20px;
      color: var(--text-main);
      margin-bottom: 12px;
    }
    .not-found-card p {
      color: var(--text-sub);
      margin-bottom: 24px;
    }

    /* 页脚 */
    .site-footer {
      background: #fff;
      border-top: 1px solid var(--border-color);
      padding: 48px 0 24px;
      margin-top: 60px;
    }
    .footer-container {
      max-width: 1200px;
      margin: 0 auto;
      padding: 0 16px;
    }
    .footer-top-grid {
      display: grid;
      grid-template-columns: 2fr 1fr 1fr;
      gap: 40px;
      margin-bottom: 40px;
    }
    .footer-brand h4 {
      font-size: 16px;
      font-weight: 800;
      color: var(--text-main);
      margin-bottom: 12px;
      display: flex;
      align-items: center;
      gap: 6px;
    }
    .footer-brand p {
      font-size: 13px;
      color: var(--text-sub);
      line-height: 1.7;
      max-width: 480px;
    }
    .footer-nav-col h5 {
      font-size: 14px;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 16px;
    }
    .footer-nav-col ul {
      list-style: none;
      margin: 0;
    }
    .footer-nav-col ul li {
      margin-bottom: 10px;
    }
    .footer-nav-col ul li a {
      font-size: 13px;
      color: var(--text-sub);
    }
    .footer-nav-col ul li a:hover {
      color: var(--primary-color);
    }
    .footer-bottom-line {
      border-top: 1px solid var(--border-light);
      padding-top: 20px;
      display: flex;
      justify-content: space-between;
      align-items: center;
      font-size: 12px;
      color: var(--text-light);
      flex-wrap: wrap;
      gap: 12px;
    }

    /* 响应式断点适配 */
    @media (max-width: 1024px) {
      .article-page-container {
        grid-template-columns: 1fr;
      }
      .footer-top-grid {
        grid-template-columns: 1fr 1fr;
      }
    }

    @media (max-width: 768px) {
      .header-main {
        flex-direction: column;
        align-items: flex-start;
        gap: 12px;
      }
      .header-search {
        width: 100%;
      }
      .nav-links {
        overflow-x: auto;
        white-space: nowrap;
        width: 100%;
      }
      .nav-links li a {
        padding: 10px 14px;
        font-size: 13px;
      }
      .nav-extra-link {
        display: none;
      }
      .article-main-card {
        padding: 20px 16px;
      }
      .article-h1 {
        font-size: 22px;
      }
      .article-footer-cta {
        flex-direction: column;
        align-items: flex-start;
      }
      .footer-top-grid {
        grid-template-columns: 1fr;
        gap: 24px;
      }
      .footer-bottom-line {
        flex-direction: column;
        align-items: flex-start;
      }
    }

    @media (max-width: 520px) {
      .article-meta {
        font-size: 11px;
        gap: 10px;
      }
      .article-body-content {
        font-size: 15px;
      }
    }

/* roulang page: category1 */
:root {
      --primary-color: #2154c5;
      --primary-dark: #163c93;
      --accent-color: #1a4199;
      --text-main: #181c28;
      --text-sub: #5f6b80;
      --text-light: #8e9bb0;
      --bg-page: #f6f8fa;
      --bg-white: #ffffff;
      --border-color: #e4e8ef;
      --border-light: #edf1f7;
    }
    body {
      background-color: var(--bg-page);
      color: var(--text-main);
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
      font-size: 14px;
      line-height: 1.6;
      -webkit-font-smoothing: antialiased;
    }
    a {
      color: inherit;
      text-decoration: none;
      transition: color 0.2s ease, opacity 0.2s ease;
    }
    a:hover {
      color: var(--primary-color);
    }
    .site-header {
      background: var(--bg-white);
      border-bottom: 1px solid var(--border-color);
    }
    .header-main {
      max-width: 1200px;
      margin: 0 auto;
      padding: 18px 16px;
      display: flex;
      align-items: center;
      justify-content: space-between;
    }
    .brand-wrap {
      display: flex;
      align-items: center;
      gap: 12px;
    }
    .brand-logo-icon {
      width: 40px;
      height: 40px;
      background: var(--primary-color);
      color: #fff;
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 800;
      font-size: 20px;
      border-radius: 4px;
      letter-spacing: -1px;
    }
    .brand-text-box h1 {
      font-size: 22px;
      font-weight: 800;
      color: var(--text-main);
      line-height: 1.1;
      margin: 0;
      letter-spacing: -0.5px;
    }
    .brand-text-box .sub-slogan {
      font-size: 11px;
      color: var(--text-light);
      margin-top: 3px;
      letter-spacing: 0.5px;
    }
    .header-search {
      display: flex;
      align-items: center;
      background: #f1f4f9;
      border: 1px solid var(--border-color);
      border-radius: 2px;
      padding: 6px 12px;
      width: 320px;
    }
    .header-search input {
      border: none;
      background: transparent;
      outline: none;
      font-size: 13px;
      color: var(--text-main);
      width: 100%;
      margin: 0;
      box-shadow: none;
      height: auto;
    }
    .header-search svg {
      fill: var(--text-light);
      width: 16px;
      height: 16px;
      margin-right: 8px;
      flex-shrink: 0;
    }
    .site-nav-bar {
      border-top: 1px solid var(--border-light);
      background: #fff;
    }
    .nav-inner {
      max-width: 1200px;
      margin: 0 auto;
      padding: 0 16px;
      display: flex;
      justify-content: space-between;
      align-items: center;
    }
    .nav-links {
      display: flex;
      list-style: none;
      margin: 0;
    }
    .nav-links li a {
      display: block;
      padding: 13px 20px;
      font-size: 14px;
      font-weight: 600;
      color: #3b4559;
      position: relative;
    }
    .nav-links li.active a,
    .nav-links li a:hover {
      color: var(--primary-color);
    }
    .nav-links li.active a::after {
      content: '';
      position: absolute;
      bottom: 0;
      left: 20px;
      right: 20px;
      height: 3px;
      background: var(--primary-color);
    }
    .nav-extra-link {
      font-size: 13px;
      color: var(--text-sub);
      display: inline-flex;
      align-items: center;
      gap: 4px;
    }
    .page-main-wrap {
      max-width: 1200px;
      margin: 24px auto;
      padding: 0 16px;
    }
    .app-hero-panel {
      background: var(--bg-white);
      border: 1px solid var(--border-color);
      padding: 36px 32px;
      margin-bottom: 24px;
      display: grid;
      grid-template-columns: 1.2fr 0.8fr;
      gap: 32px;
      align-items: center;
    }
    .app-hero-tag {
      display: inline-block;
      background: #192742;
      color: #fff;
      font-size: 12px;
      padding: 4px 10px;
      border-radius: 2px;
      font-weight: 600;
      margin-bottom: 12px;
    }
    .app-hero-content h2 {
      font-size: 28px;
      font-weight: 800;
      color: var(--text-main);
      margin: 0 0 12px;
      line-height: 1.3;
    }
    .app-hero-content p {
      font-size: 14px;
      color: var(--text-sub);
      line-height: 1.7;
      margin-bottom: 24px;
    }
    .download-action-group {
      display: flex;
      gap: 16px;
      flex-wrap: wrap;
    }
    .btn-download-primary {
      background: var(--primary-color);
      color: #fff;
      padding: 12px 26px;
      border-radius: 3px;
      font-size: 15px;
      font-weight: 700;
      display: inline-flex;
      align-items: center;
      gap: 8px;
      box-shadow: 0 4px 12px rgba(33, 84, 197, 0.25);
    }
    .btn-download-primary:hover {
      background: var(--primary-dark);
      color: #fff;
    }
    .btn-download-secondary {
      background: #f1f4f9;
      color: var(--text-main);
      border: 1px solid var(--border-color);
      padding: 12px 26px;
      border-radius: 3px;
      font-size: 15px;
      font-weight: 600;
      display: inline-flex;
      align-items: center;
      gap: 8px;
    }
    .btn-download-secondary:hover {
      background: #e5ebf5;
      color: var(--primary-color);
    }
    .app-preview-visual {
      background: #0f172a;
      border-radius: 6px;
      padding: 24px;
      color: #fff;
      border: 1px solid #1e293b;
      box-shadow: 0 12px 28px rgba(0,0,0,0.08);
    }
    .terminal-header {
      display: flex;
      justify-content: space-between;
      align-items: center;
      border-bottom: 1px solid rgba(255,255,255,0.1);
      padding-bottom: 12px;
      margin-bottom: 16px;
    }
    .terminal-title {
      font-size: 13px;
      font-weight: 600;
      color: #94a3b8;
    }
    .status-dot {
      display: inline-block;
      width: 8px;
      height: 8px;
      border-radius: 50%;
      background: #10b981;
      margin-right: 6px;
    }
    .terminal-stat-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 12px;
    }
    .terminal-stat-box {
      background: rgba(255,255,255,0.04);
      padding: 12px;
      border-radius: 4px;
      border: 1px solid rgba(255,255,255,0.06);
    }
    .stat-label {
      font-size: 11px;
      color: #94a3b8;
      margin-bottom: 4px;
    }
    .stat-val {
      font-size: 16px;
      font-weight: 700;
      color: #38bdf8;
    }
    .stat-desc {
      font-size: 11px;
      color: #64748b;
      margin-top: 2px;
    }
    .overview-strip {
      background: var(--bg-white);
      border: 1px solid var(--border-color);
      display: grid;
      grid-template-columns: 1.4fr 1fr 1fr 1fr;
      margin-bottom: 24px;
    }
    .overview-col-main {
      padding: 20px;
      background: #f8fafc;
      border-right: 1px solid var(--border-color);
    }
    .overview-col-main .sec-tag {
      background: #192742;
      color: #fff;
      font-size: 10px;
      padding: 2px 6px;
      display: inline-block;
      margin-bottom: 6px;
      font-weight: 600;
      border-radius: 2px;
    }
    .overview-col-main h3 {
      font-size: 18px;
      font-weight: 800;
      color: var(--text-main);
      margin: 0;
    }
    .overview-col-main p {
      font-size: 12px;
      color: var(--text-light);
      margin: 4px 0 0;
    }
    .overview-col-item {
      padding: 20px;
      border-right: 1px solid var(--border-color);
      display: flex;
      flex-direction: column;
      justify-content: center;
    }
    .overview-col-item:last-child {
      border-right: none;
    }
    .overview-col-item .item-num {
      font-size: 11px;
      font-weight: 700;
      color: var(--text-light);
      margin-bottom: 2px;
    }
    .overview-col-item .item-name {
      font-size: 15px;
      font-weight: 700;
      color: var(--text-main);
    }
    .overview-col-item .item-desc {
      font-size: 12px;
      color: var(--text-sub);
      margin-top: 4px;
    }
    .section-wrap {
      background: var(--bg-white);
      border: 1px solid var(--border-color);
      padding: 28px 24px;
      margin-bottom: 24px;
    }
    .section-header {
      display: flex;
      justify-content: space-between;
      align-items: flex-end;
      border-bottom: 1px solid var(--border-light);
      padding-bottom: 14px;
      margin-bottom: 20px;
    }
    .section-title-wrap {
      display: flex;
      align-items: center;
      gap: 10px;
    }
    .section-title-wrap::before {
      content: '';
      display: inline-block;
      width: 4px;
      height: 20px;
      background: var(--primary-color);
    }
    .section-title-wrap h3 {
      font-size: 18px;
      font-weight: 800;
      color: var(--text-main);
      margin: 0;
    }
    .section-sub {
      font-size: 12px;
      color: var(--text-light);
    }
    .feature-card-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 20px;
    }
    .feature-card {
      border: 1px solid var(--border-light);
      background: #fafbfc;
      padding: 20px;
      border-radius: 4px;
      transition: transform 0.2s, box-shadow 0.2s, border-color 0.2s;
    }
    .feature-card:hover {
      transform: translateY(-2px);
      box-shadow: 0 6px 16px rgba(0,0,0,0.05);
      border-color: var(--border-color);
      background: #fff;
    }
    .card-icon-num {
      width: 28px;
      height: 28px;
      background: #eef2fb;
      color: var(--primary-color);
      font-weight: 700;
      font-size: 13px;
      display: flex;
      align-items: center;
      justify-content: center;
      border-radius: 2px;
      margin-bottom: 14px;
    }
    .feature-card h4 {
      font-size: 16px;
      font-weight: 700;
      color: var(--text-main);
      margin: 0 0 8px;
    }
    .feature-card p {
      font-size: 13px;
      color: var(--text-sub);
      line-height: 1.6;
      margin: 0;
    }
    .steps-row-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 16px;
    }
    .step-box {
      border-left: 2px solid var(--border-color);
      padding: 4px 0 4px 16px;
    }
    .step-box.active-step {
      border-left-color: var(--primary-color);
    }
    .step-box .step-index {
      font-size: 11px;
      font-weight: 700;
      color: var(--primary-color);
      text-transform: uppercase;
      margin-bottom: 4px;
    }
    .step-box h5 {
      font-size: 15px;
      font-weight: 700;
      margin: 0 0 6px;
      color: var(--text-main);
    }
    .step-box p {
      font-size: 12px;
      color: var(--text-sub);
      line-height: 1.5;
      margin: 0;
    }
    .dual-columns-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 24px;
      margin-bottom: 24px;
    }
    .column-panel {
      background: var(--bg-white);
      border: 1px solid var(--border-color);
      padding: 24px;
    }
    .panel-header-line {
      display: flex;
      align-items: center;
      justify-content: space-between;
      margin-bottom: 6px;
    }
    .panel-title-text {
      display: flex;
      align-items: center;
      gap: 8px;
    }
    .panel-title-text::before {
      content: '';
      display: inline-block;
      width: 4px;
      height: 18px;
      background: var(--primary-color);
    }
    .panel-title-text h3 {
      font-size: 18px;
      font-weight: 800;
      color: var(--text-main);
      margin: 0;
    }
    .panel-sub-desc {
      font-size: 12px;
      color: var(--text-light);
      margin: 0 0 16px;
    }
    .hero-media-card {
      position: relative;
      height: 220px;
      background-size: cover;
      background-position: center;
      border-radius: 2px;
      overflow: hidden;
      margin-bottom: 16px;
      display: flex;
      flex-direction: column;
      justify-content: flex-end;
      padding: 20px;
      color: #fff;
    }
    .hero-media-card::before {
      content: '';
      position: absolute;
      top: 0; left: 0; right: 0; bottom: 0;
      background: linear-gradient(180deg, rgba(15, 23, 42, 0.2) 0%, rgba(15, 23, 42, 0.85) 100%);
    }
    .hero-media-card h4 {
      position: relative;
      font-size: 17px;
      font-weight: 700;
      margin: 0 0 6px;
      line-height: 1.4;
      color: #fff;
    }
    .hero-media-card p {
      position: relative;
      font-size: 12px;
      color: #cbd5e1;
      margin: 0;
    }
    .article-text-list {
      list-style: none;
      margin: 0;
      padding: 0;
    }
    .article-text-item {
      display: flex;
      justify-content: space-between;
      align-items: center;
      padding: 12px 0;
      border-bottom: 1px dashed var(--border-light);
    }
    .article-text-item:last-child {
      border-bottom: none;
    }
    .item-title-link {
      font-size: 14px;
      color: var(--text-main);
      font-weight: 500;
      overflow: hidden;
      text-overflow: ellipsis;
      white-space: nowrap;
      padding-right: 16px;
      max-width: 78%;
    }
    .item-title-link:hover {
      color: var(--primary-color);
    }
    .item-time-stamp {
      font-size: 12px;
      color: var(--text-light);
      white-space: nowrap;
    }
    .faq-accordion-box {
      border: 1px solid var(--border-light);
      border-radius: 4px;
      background: #fafbfc;
    }
    .faq-item {
      padding: 16px 20px;
      border-bottom: 1px solid var(--border-light);
    }
    .faq-item:last-child {
      border-bottom: none;
    }
    .faq-question {
      font-size: 15px;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 6px;
      display: flex;
      align-items: center;
      gap: 8px;
    }
    .faq-question::before {
      content: 'Q:';
      color: var(--primary-color);
      font-weight: 800;
    }
    .faq-answer {
      font-size: 13px;
      color: var(--text-sub);
      line-height: 1.6;
      margin: 0;
      padding-left: 24px;
    }
    .cta-banner-card {
      background: linear-gradient(135deg, #182848 0%, #163c93 100%);
      color: #fff;
      padding: 32px;
      display: flex;
      justify-content: space-between;
      align-items: center;
      border-radius: 4px;
      margin-bottom: 24px;
    }
    .cta-banner-card h3 {
      font-size: 20px;
      font-weight: 800;
      margin: 0 0 6px;
      color: #fff;
    }
    .cta-banner-card p {
      font-size: 13px;
      color: #cbd5e1;
      margin: 0;
    }
    .site-footer {
      background: #fff;
      border-top: 1px solid var(--border-color);
      margin-top: 40px;
      padding-top: 36px;
    }
    .footer-container {
      max-width: 1200px;
      margin: 0 auto;
      padding: 0 16px;
    }
    .footer-top-grid {
      display: grid;
      grid-template-columns: 2fr 1fr 1fr;
      gap: 32px;
      padding-bottom: 30px;
      border-bottom: 1px solid var(--border-light);
    }
    .footer-brand h4 {
      font-size: 17px;
      font-weight: 800;
      color: var(--text-main);
      display: flex;
      align-items: center;
      gap: 8px;
      margin: 0 0 12px;
    }
    .footer-brand p {
      font-size: 12px;
      color: var(--text-sub);
      line-height: 1.7;
      margin: 0;
      max-width: 480px;
    }
    .footer-nav-col h5 {
      font-size: 14px;
      font-weight: 700;
      color: var(--text-main);
      margin: 0 0 14px;
    }
    .footer-nav-col ul {
      list-style: none;
      margin: 0;
      padding: 0;
    }
    .footer-nav-col ul li {
      margin-bottom: 8px;
    }
    .footer-nav-col ul li a {
      font-size: 13px;
      color: var(--text-sub);
    }
    .footer-nav-col ul li a:hover {
      color: var(--primary-color);
    }
    .footer-bottom-line {
      padding: 18px 0;
      display: flex;
      justify-content: space-between;
      align-items: center;
      font-size: 12px;
      color: var(--text-light);
    }
    @media screen and (max-width: 1024px) {
      .overview-strip {
        grid-template-columns: 1fr 1fr;
      }
      .overview-col-main, .overview-col-item {
        border-right: none;
        border-bottom: 1px solid var(--border-color);
      }
      .app-hero-panel {
        grid-template-columns: 1fr;
      }
      .feature-card-grid {
        grid-template-columns: 1fr 1fr;
      }
      .steps-row-grid {
        grid-template-columns: 1fr 1fr;
        gap: 20px;
      }
    }
    @media screen and (max-width: 768px) {
      .header-main {
        flex-direction: column;
        align-items: flex-start;
        gap: 12px;
      }
      .header-search {
        width: 100%;
      }
      .nav-inner {
        flex-direction: column;
        align-items: flex-start;
      }
      .nav-links {
        flex-wrap: wrap;
        width: 100%;
      }
      .nav-links li a {
        padding: 10px 12px;
      }
      .nav-extra-link {
        display: none;
      }
      .dual-columns-grid {
        grid-template-columns: 1fr;
      }
      .feature-card-grid {
        grid-template-columns: 1fr;
      }
      .steps-row-grid {
        grid-template-columns: 1fr;
      }
      .cta-banner-card {
        flex-direction: column;
        align-items: flex-start;
        gap: 16px;
      }
      .footer-top-grid {
        grid-template-columns: 1fr;
        gap: 24px;
      }
      .footer-bottom-line {
        flex-direction: column;
        align-items: flex-start;
        gap: 8px;
      }
    }
    @media screen and (max-width: 520px) {
      .overview-strip {
        grid-template-columns: 1fr;
      }
      .download-action-group {
        flex-direction: column;
        width: 100%;
      }
      .btn-download-primary, .btn-download-secondary {
        width: 100%;
        justify-content: center;
      }
      .item-title-link {
        max-width: 65%;
      }
    }