/* roulang page: index */
:root {
      --primary: #1952a8;
      --primary-dark: #0f3674;
      --primary-light: #eaf1fa;
      --text-main: #1d2129;
      --text-muted: #596173;
      --text-light: #86909c;
      --border-color: #e5e8ef;
      --border-light: #edf1f7;
      --bg-body: #f8fafc;
      --bg-card: #ffffff;
      --bg-topbar: #16325c;
      --font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
    }

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

    body {
      background-color: var(--bg-body);
      color: var(--text-main);
      font-family: var(--font-family);
      line-height: 1.6;
      font-size: 14px;
      -webkit-font-smoothing: antialiased;
    }

    a {
      color: inherit;
      text-decoration: none;
      transition: color 0.2s ease;
    }

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

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

    /* TopBar */
    .topbar {
      background-color: var(--bg-topbar);
      color: #cbd5e1;
      font-size: 12px;
      padding: 7px 0;
      border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    }

    .topbar .container {
      display: flex;
      justify-content: space-between;
      align-items: center;
    }

    /* Main Header */
    .site-header {
      background: #ffffff;
      border-bottom: 1px solid var(--border-color);
      padding: 22px 0;
    }

    .site-header .container {
      display: flex;
      justify-content: space-between;
      align-items: center;
      gap: 20px;
    }

    .logo-area {
      display: flex;
      align-items: center;
      gap: 12px;
    }

    .logo-icon {
      width: 44px;
      height: 44px;
      background: linear-gradient(135deg, var(--primary), var(--primary-dark));
      border-radius: 8px;
      display: flex;
      align-items: center;
      justify-content: center;
      color: #fff;
      font-weight: 800;
      font-size: 22px;
      letter-spacing: -1px;
      box-shadow: 0 4px 10px rgba(25, 82, 168, 0.2);
    }

    .logo-text h1 {
      font-size: 24px;
      font-weight: 700;
      color: #0f172a;
      line-height: 1.2;
      letter-spacing: 0.5px;
    }

    .logo-text .slogan {
      font-size: 12px;
      color: var(--text-light);
      margin-top: 3px;
    }

    .header-search {
      position: relative;
      width: 380px;
      max-width: 100%;
    }

    .header-search input {
      width: 100%;
      height: 42px;
      background-color: #f1f4f9;
      border: 1px solid transparent;
      border-radius: 6px;
      padding: 0 40px 0 38px;
      font-size: 13px;
      color: var(--text-main);
      outline: none;
      transition: all 0.2s ease;
    }

    .header-search input:focus {
      background: #fff;
      border-color: var(--primary);
      box-shadow: 0 0 0 3px rgba(25, 82, 168, 0.1);
    }

    .search-icon-left {
      position: absolute;
      left: 12px;
      top: 50%;
      transform: translateY(-50%);
      color: var(--text-light);
      font-size: 15px;
      line-height: 1;
    }

    .search-arrow-right {
      position: absolute;
      right: 14px;
      top: 50%;
      transform: translateY(-50%);
      color: var(--text-light);
      font-size: 15px;
    }

    /* Nav Bar */
    .main-nav {
      background: #ffffff;
      border-bottom: 1px solid var(--border-color);
    }

    .main-nav .container {
      display: flex;
      justify-content: space-between;
      align-items: center;
    }

    .nav-list {
      display: flex;
      list-style: none;
      gap: 32px;
    }

    .nav-list a {
      display: block;
      padding: 16px 0;
      font-size: 15px;
      font-weight: 600;
      color: #334155;
      position: relative;
    }

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

    .nav-list a.active::after {
      content: "";
      position: absolute;
      bottom: 0;
      left: 0;
      width: 100%;
      height: 3px;
      background-color: var(--primary);
      border-radius: 3px 3px 0 0;
    }

    .nav-right-link {
      font-size: 14px;
      color: var(--text-muted);
      display: flex;
      align-items: center;
      gap: 4px;
    }

    /* Section 1: Dashboard Bar */
    .dashboard-strip {
      padding: 30px 0 10px;
    }

    .dash-box {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: 8px;
      display: grid;
      grid-template-columns: 260px repeat(3, 1fr) 140px;
      overflow: hidden;
      box-shadow: 0 2px 6px rgba(0, 0, 0, 0.02);
    }

    .dash-lead {
      padding: 24px;
      background: #ffffff;
      border-right: 1px solid var(--border-color);
      display: flex;
      flex-direction: column;
      justify-content: center;
    }

    .dash-lead .badge {
      display: inline-block;
      align-self: flex-start;
      background: #0f172a;
      color: #ffffff;
      font-size: 11px;
      padding: 3px 8px;
      border-radius: 4px;
      font-weight: 600;
      margin-bottom: 8px;
      letter-spacing: 0.5px;
    }

    .dash-lead h2 {
      font-size: 18px;
      font-weight: 700;
      color: #0f172a;
      margin-bottom: 6px;
    }

    .dash-lead p {
      font-size: 12px;
      color: var(--text-light);
      line-height: 1.4;
    }

    .dash-item {
      padding: 20px 24px;
      border-right: 1px solid var(--border-color);
      display: flex;
      flex-direction: column;
      justify-content: space-between;
      position: relative;
      background: #ffffff;
      transition: background-color 0.2s ease;
    }

    .dash-item:hover {
      background-color: #f8fafc;
    }

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

    .dash-item-title {
      font-size: 16px;
      font-weight: 700;
      color: #1e293b;
      margin-bottom: 4px;
      display: flex;
      align-items: center;
      justify-content: space-between;
    }

    .dash-item-title .arrow {
      font-size: 14px;
      color: var(--text-light);
    }

    .dash-item-desc {
      font-size: 12px;
      color: var(--text-muted);
    }

    .dash-all-btn {
      background: var(--primary);
      color: #ffffff;
      display: flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      font-size: 14px;
      font-weight: 600;
      text-decoration: none;
      transition: background-color 0.2s ease;
      cursor: pointer;
    }

    .dash-all-btn:hover {
      background-color: var(--primary-dark);
      color: #ffffff;
    }

    /* Section 2: Dual Column Showcase */
    .market-columns {
      padding: 24px 0 40px;
    }

    .grid-2 {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 28px;
    }

    .column-panel {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: 8px;
      padding: 24px;
      display: flex;
      flex-direction: column;
    }

    .panel-header {
      display: flex;
      justify-content: space-between;
      align-items: flex-start;
      margin-bottom: 18px;
      padding-bottom: 12px;
      border-bottom: 1px solid var(--border-light);
    }

    .panel-title-wrap {
      display: flex;
      flex-direction: column;
    }

    .panel-title-wrap h3 {
      font-size: 20px;
      font-weight: 700;
      color: #0f172a;
      display: flex;
      align-items: center;
      gap: 10px;
    }

    .panel-title-wrap h3::before {
      content: "";
      display: inline-block;
      width: 4px;
      height: 18px;
      background: var(--primary);
      border-radius: 2px;
    }

    .panel-title-wrap .sub-txt {
      font-size: 13px;
      color: var(--text-light);
      margin-top: 6px;
    }

    .panel-header-icon {
      font-size: 16px;
      color: #94a3b8;
    }

    /* Feature Banner Card */
    .feature-card {
      position: relative;
      height: 220px;
      border-radius: 6px;
      overflow: hidden;
      margin-bottom: 20px;
      display: flex;
      align-items: flex-end;
      padding: 20px;
      background-size: cover;
      background-position: center;
    }

    .feature-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%);
    }

    .feature-card-content {
      position: relative;
      z-index: 2;
      width: 100%;
    }

    .feature-card-content h4 {
      font-size: 20px;
      font-weight: 700;
      color: #ffffff;
      line-height: 1.4;
      margin-bottom: 16px;
    }

    .feature-ctrls {
      display: flex;
      align-items: center;
      justify-content: space-between;
      color: rgba(255, 255, 255, 0.8);
      font-size: 12px;
    }

    .ctrl-btns {
      display: flex;
      align-items: center;
      gap: 8px;
    }

    .ctrl-btn {
      width: 24px;
      height: 24px;
      border-radius: 50%;
      border: 1px solid rgba(255, 255, 255, 0.4);
      display: flex;
      align-items: center;
      justify-content: center;
      background: transparent;
      color: #fff;
      cursor: pointer;
      font-size: 10px;
    }

    .ctrl-btn:hover {
      background: rgba(255, 255, 255, 0.2);
    }

    .ctrl-progress {
      flex: 1;
      height: 2px;
      background: rgba(255, 255, 255, 0.25);
      margin: 0 16px;
      position: relative;
    }

    .ctrl-progress-bar {
      position: absolute;
      left: 0;
      top: 0;
      height: 100%;
      width: 35%;
      background: #ffffff;
    }

    /* Article List */
    .article-stream {
      list-style: none;
      display: flex;
      flex-direction: column;
      flex: 1;
    }

    .article-item {
      padding: 13px 0;
      border-bottom: 1px dashed var(--border-light);
    }

    .article-item:last-child {
      border-bottom: none;
    }

    .article-item a {
      display: flex;
      justify-content: space-between;
      align-items: baseline;
      gap: 16px;
    }

    .article-headline {
      font-size: 14px;
      color: #1e293b;
      font-weight: 500;
      flex: 1;
      overflow: hidden;
      text-overflow: ellipsis;
      white-space: nowrap;
    }

    .article-item a:hover .article-headline {
      color: var(--primary);
    }

    .article-meta {
      display: flex;
      align-items: center;
      gap: 16px;
      font-size: 12px;
      color: var(--text-light);
      flex-shrink: 0;
    }

    .panel-footer-more {
      margin-top: 14px;
      padding-top: 14px;
      border-top: 1px solid var(--border-light);
    }

    .more-link {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      font-size: 13px;
      font-weight: 600;
      color: var(--text-muted);
    }

    .more-link:hover {
      color: var(--primary);
    }

    /* Section 3: Value Points (Features & Risk Control) */
    .market-matrix {
      padding: 10px 0 40px;
    }

    .section-head {
      margin-bottom: 20px;
    }

    .section-head h3 {
      font-size: 20px;
      font-weight: 700;
      color: #0f172a;
      display: flex;
      align-items: center;
      gap: 10px;
    }

    .section-head h3::before {
      content: "";
      display: inline-block;
      width: 4px;
      height: 18px;
      background: var(--primary);
      border-radius: 2px;
    }

    .matrix-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
    }

    .matrix-card {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: 8px;
      padding: 22px;
      transition: transform 0.2s ease, box-shadow 0.2s ease;
    }

    .matrix-card:hover {
      transform: translateY(-2px);
      box-shadow: 0 6px 16px rgba(0, 0, 0, 0.05);
    }

    .matrix-icon {
      width: 36px;
      height: 36px;
      border-radius: 6px;
      background: var(--primary-light);
      color: var(--primary);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 18px;
      margin-bottom: 14px;
    }

    .matrix-card h4 {
      font-size: 16px;
      font-weight: 700;
      color: #1e293b;
      margin-bottom: 8px;
    }

    .matrix-card p {
      font-size: 13px;
      color: var(--text-muted);
      line-height: 1.5;
    }

    /* Footer */
    .site-footer {
      background: #ffffff;
      border-top: 1px solid var(--border-color);
      padding: 48px 0 24px;
      margin-top: 20px;
    }

    .footer-top {
      display: grid;
      grid-template-columns: 2fr 1fr 1fr;
      gap: 40px;
      padding-bottom: 36px;
      border-bottom: 1px solid var(--border-light);
    }

    .footer-brand .logo-area {
      margin-bottom: 14px;
    }

    .footer-desc {
      font-size: 13px;
      color: var(--text-muted);
      line-height: 1.6;
      max-width: 420px;
    }

    .footer-col h5 {
      font-size: 14px;
      font-weight: 700;
      color: #0f172a;
      margin-bottom: 16px;
    }

    .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 {
      padding-top: 20px;
      display: flex;
      justify-content: space-between;
      align-items: center;
      font-size: 12px;
      color: var(--text-light);
    }

    .no-data {
      padding: 30px;
      text-align: center;
      color: var(--text-light);
      font-size: 13px;
    }

    /* Responsive */
    @media (max-width: 1024px) {
      .dash-box {
        grid-template-columns: 1fr 1fr;
      }
      .dash-lead {
        grid-column: span 2;
        border-right: none;
        border-bottom: 1px solid var(--border-color);
      }
      .dash-all-btn {
        grid-column: span 2;
        padding: 16px;
        border-top: 1px solid var(--border-color);
      }
      .matrix-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .grid-2 {
        grid-template-columns: 1fr;
      }
    }

    @media (max-width: 768px) {
      .topbar {
        display: none;
      }
      .site-header .container {
        flex-direction: column;
        align-items: flex-start;
      }
      .header-search {
        width: 100%;
      }
      .nav-list {
        overflow-x: auto;
        white-space: nowrap;
        width: 100%;
        gap: 20px;
        padding-bottom: 4px;
      }
      .nav-right-link {
        display: none;
      }
      .dash-box {
        grid-template-columns: 1fr;
      }
      .dash-lead,
      .dash-item,
      .dash-all-btn {
        grid-column: span 1;
        border-right: none;
        border-bottom: 1px solid var(--border-color);
      }
      .matrix-grid {
        grid-template-columns: 1fr;
      }
      .footer-top {
        grid-template-columns: 1fr;
        gap: 24px;
      }
      .footer-bottom {
        flex-direction: column;
        gap: 10px;
        text-align: center;
      }
    }

/* roulang page: article */
:root {
      --primary: #1952a8;
      --primary-dark: #0f3674;
      --primary-light: #eaf1fa;
      --text-main: #1d2129;
      --text-muted: #596173;
      --text-light: #86909c;
      --border-color: #e5e8ef;
      --border-light: #edf1f7;
      --bg-body: #f8fafc;
      --bg-card: #ffffff;
      --bg-topbar: #16325c;
      --font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
    }
    * {
      box-sizing: border-box;
      margin: 0;
      padding: 0;
    }
    body {
      background-color: var(--bg-body);
      color: var(--text-main);
      font-family: var(--font-family);
      line-height: 1.6;
      font-size: 14px;
      -webkit-font-smoothing: antialiased;
    }
    a {
      color: inherit;
      text-decoration: none;
      transition: color 0.2s ease;
    }
    a:hover {
      color: var(--primary);
    }
    .container {
      width: 100%;
      max-width: 1200px;
      margin: 0 auto;
      padding: 0 20px;
    }
    .topbar {
      background-color: var(--bg-topbar);
      color: #cbd5e1;
      font-size: 12px;
      padding: 7px 0;
      border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    }
    .topbar .container {
      display: flex;
      justify-content: space-between;
      align-items: center;
    }
    .topbar-meta {
      display: flex;
      gap: 16px;
    }
    .site-header {
      background: #ffffff;
      border-bottom: 1px solid var(--border-color);
      padding: 20px 0;
    }
    .site-header .container {
      display: flex;
      justify-content: space-between;
      align-items: center;
      gap: 20px;
    }
    .logo-area {
      display: flex;
      align-items: center;
      gap: 12px;
    }
    .logo-icon {
      width: 44px;
      height: 44px;
      background: linear-gradient(135deg, var(--primary), var(--primary-dark));
      border-radius: 8px;
      display: flex;
      align-items: center;
      justify-content: center;
      color: #fff;
      font-weight: 800;
      font-size: 22px;
      letter-spacing: -1px;
      box-shadow: 0 4px 10px rgba(25, 82, 168, 0.2);
    }
    .logo-text h1,
    .logo-text .brand-title {
      font-size: 24px;
      font-weight: 700;
      color: #0f172a;
      line-height: 1.2;
      letter-spacing: 0.5px;
    }
    .logo-text .slogan {
      font-size: 12px;
      color: var(--text-light);
      margin-top: 3px;
    }
    .header-search {
      position: relative;
      width: 340px;
      max-width: 100%;
    }
    .header-search input {
      width: 100%;
      height: 40px;
      background-color: #f1f4f9;
      border: 1px solid transparent;
      border-radius: 6px;
      padding: 0 40px 0 16px;
      font-size: 13px;
      color: var(--text-main);
      outline: none;
      transition: all 0.2s ease;
    }
    .header-search input:focus {
      background: #fff;
      border-color: var(--primary);
      box-shadow: 0 0 0 3px rgba(25, 82, 168, 0.1);
    }
    .main-nav {
      background: #ffffff;
      border-bottom: 1px solid var(--border-color);
    }
    .main-nav .container {
      display: flex;
      justify-content: space-between;
      align-items: center;
    }
    .nav-list {
      display: flex;
      list-style: none;
      gap: 32px;
    }
    .nav-list a {
      display: block;
      padding: 16px 0;
      font-size: 15px;
      font-weight: 600;
      color: #334155;
      position: relative;
    }
    .nav-list a:hover,
    .nav-list a.active {
      color: var(--primary);
    }
    .nav-list a.active::after {
      content: "";
      position: absolute;
      bottom: 0;
      left: 0;
      width: 100%;
      height: 3px;
      background-color: var(--primary);
      border-radius: 3px 3px 0 0;
    }
    .nav-right-link {
      font-size: 14px;
      color: var(--text-muted);
      display: flex;
      align-items: center;
      gap: 4px;
      font-weight: 500;
    }
    .breadcrumb-wrap {
      padding: 16px 0;
      font-size: 13px;
      color: var(--text-light);
    }
    .breadcrumb-wrap a {
      color: var(--text-muted);
    }
    .breadcrumb-wrap a:hover {
      color: var(--primary);
    }
    .breadcrumb-wrap span {
      margin: 0 6px;
    }
    .article-layout {
      display: grid;
      grid-template-columns: minmax(0, 1fr) 320px;
      gap: 28px;
      padding-bottom: 60px;
    }
    .article-main {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: 8px;
      padding: 36px 40px;
    }
    .article-header {
      border-bottom: 1px solid var(--border-light);
      padding-bottom: 24px;
      margin-bottom: 28px;
    }
    .article-badge {
      display: inline-block;
      background: var(--primary-light);
      color: var(--primary);
      font-size: 12px;
      font-weight: 600;
      padding: 4px 10px;
      border-radius: 4px;
      margin-bottom: 14px;
    }
    .article-title {
      font-size: 26px;
      font-weight: 700;
      color: #0f172a;
      line-height: 1.4;
      margin-bottom: 16px;
    }
    .article-meta-bar {
      display: flex;
      align-items: center;
      gap: 20px;
      font-size: 13px;
      color: var(--text-light);
    }
    .article-summary-box {
      background: #f8fafc;
      border-left: 4px solid var(--primary);
      padding: 14px 18px;
      margin-bottom: 30px;
      border-radius: 0 6px 6px 0;
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.7;
    }
    .article-body {
      font-size: 15px;
      color: #2b3648;
      line-height: 1.85;
      word-break: break-word;
    }
    .article-body p {
      margin-bottom: 18px;
    }
    .article-body h2,
    .article-body h3 {
      color: #0f172a;
      margin: 28px 0 14px;
      font-weight: 700;
      line-height: 1.35;
    }
    .article-body h2 {
      font-size: 20px;
      border-bottom: 1px solid var(--border-light);
      padding-bottom: 8px;
    }
    .article-body h3 {
      font-size: 17px;
    }
    .article-body ul,
    .article-body ol {
      margin: 0 0 20px 24px;
    }
    .article-body li {
      margin-bottom: 6px;
    }
    .article-body img {
      max-width: 100%;
      height: auto;
      border-radius: 6px;
      margin: 16px 0;
    }
    .empty-state {
      text-align: center;
      padding: 60px 20px;
    }
    .empty-state h3 {
      font-size: 18px;
      color: #0f172a;
      margin-bottom: 12px;
    }
    .empty-state a {
      display: inline-block;
      margin-top: 14px;
      padding: 8px 20px;
      background: var(--primary);
      color: #fff;
      border-radius: 4px;
      font-weight: 500;
    }
    .article-sidebar {
      display: flex;
      flex-direction: column;
      gap: 24px;
    }
    .sidebar-widget {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: 8px;
      padding: 22px;
    }
    .widget-title {
      font-size: 16px;
      font-weight: 700;
      color: #0f172a;
      margin-bottom: 16px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      border-bottom: 1px solid var(--border-light);
      padding-bottom: 10px;
    }
    .widget-lead-card {
      background: var(--primary-light);
      border-radius: 6px;
      padding: 14px;
      margin-bottom: 16px;
    }
    .widget-lead-card h4 {
      font-size: 14px;
      color: var(--primary-dark);
      font-weight: 700;
      margin-bottom: 6px;
    }
    .widget-lead-card p {
      font-size: 12px;
      color: var(--text-muted);
      line-height: 1.5;
    }
    .sidebar-list {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 12px;
    }
    .sidebar-list-item {
      padding-bottom: 12px;
      border-bottom: 1px dashed var(--border-light);
    }
    .sidebar-list-item:last-child {
      border-bottom: none;
      padding-bottom: 0;
    }
    .sidebar-list-item a {
      font-size: 13px;
      color: #334155;
      line-height: 1.5;
      display: block;
      font-weight: 500;
    }
    .sidebar-list-item a:hover {
      color: var(--primary);
    }
    .sidebar-list-item .date {
      font-size: 11px;
      color: var(--text-light);
      margin-top: 4px;
      display: block;
    }
    .site-footer {
      background: #ffffff;
      border-top: 1px solid var(--border-color);
      padding: 44px 0 24px;
      margin-top: auto;
    }
    .footer-top {
      display: grid;
      grid-template-columns: 2fr 1fr 1fr;
      gap: 40px;
      margin-bottom: 36px;
    }
    .footer-desc {
      font-size: 13px;
      color: var(--text-muted);
      margin-top: 14px;
      line-height: 1.7;
      max-width: 440px;
    }
    .footer-col h5 {
      font-size: 15px;
      font-weight: 700;
      color: #0f172a;
      margin-bottom: 14px;
    }
    .footer-links {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 8px;
    }
    .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-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;
    }
    @media (max-width: 1024px) {
      .article-layout {
        grid-template-columns: 1fr;
      }
      .footer-top {
        grid-template-columns: 1fr 1fr;
      }
    }
    @media (max-width: 768px) {
      .topbar {
        display: none;
      }
      .site-header .container {
        flex-direction: column;
        align-items: stretch;
      }
      .header-search {
        width: 100%;
      }
      .main-nav .container {
        flex-direction: column;
        align-items: flex-start;
      }
      .nav-list {
        width: 100%;
        overflow-x: auto;
        white-space: nowrap;
        gap: 20px;
        padding-bottom: 10px;
      }
      .nav-right-link {
        display: none;
      }
      .article-main {
        padding: 24px 20px;
      }
      .article-title {
        font-size: 20px;
      }
      .footer-top {
        grid-template-columns: 1fr;
        gap: 28px;
      }
      .footer-bottom {
        flex-direction: column;
        align-items: flex-start;
      }
    }
    @media (max-width: 520px) {
      .article-meta-bar {
        flex-direction: column;
        align-items: flex-start;
        gap: 6px;
      }
    }

/* roulang page: category1 */
:root {
      --primary: #1952a8;
      --primary-dark: #0f3674;
      --primary-light: #eaf1fa;
      --text-main: #1d2129;
      --text-muted: #596173;
      --text-light: #86909c;
      --border-color: #e5e8ef;
      --border-light: #edf1f7;
      --bg-body: #f8fafc;
      --bg-card: #ffffff;
      --bg-topbar: #16325c;
      --font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
    }
    * {
      box-sizing: border-box;
      margin: 0;
      padding: 0;
    }
    body {
      background-color: var(--bg-body);
      color: var(--text-main);
      font-family: var(--font-family);
      line-height: 1.6;
      font-size: 14px;
      -webkit-font-smoothing: antialiased;
    }
    a {
      color: inherit;
      text-decoration: none;
      transition: color 0.2s ease;
    }
    a:hover {
      color: var(--primary);
    }
    .container {
      width: 100%;
      max-width: 1200px;
      margin: 0 auto;
      padding: 0 20px;
    }
    /* TopBar */
    .topbar {
      background-color: var(--bg-topbar);
      color: #cbd5e1;
      font-size: 12px;
      padding: 7px 0;
      border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    }
    .topbar .container {
      display: flex;
      justify-content: space-between;
      align-items: center;
    }
    .topbar-left {
      display: flex;
      gap: 18px;
    }
    .topbar-left span {
      display: inline-flex;
      align-items: center;
      gap: 4px;
    }
    /* Main Header */
    .site-header {
      background: #ffffff;
      border-bottom: 1px solid var(--border-color);
      padding: 22px 0;
    }
    .site-header .container {
      display: flex;
      justify-content: space-between;
      align-items: center;
      gap: 20px;
    }
    .logo-area {
      display: flex;
      align-items: center;
      gap: 12px;
    }
    .logo-icon {
      width: 44px;
      height: 44px;
      background: linear-gradient(135deg, var(--primary), var(--primary-dark));
      border-radius: 8px;
      display: flex;
      align-items: center;
      justify-content: center;
      color: #fff;
      font-weight: 800;
      font-size: 22px;
      letter-spacing: -1px;
      box-shadow: 0 4px 10px rgba(25, 82, 168, 0.2);
    }
    .logo-text h1 {
      font-size: 24px;
      font-weight: 700;
      color: #0f172a;
      line-height: 1.2;
      letter-spacing: 0.5px;
    }
    .logo-text .slogan {
      font-size: 12px;
      color: var(--text-light);
      margin-top: 3px;
    }
    .header-search {
      position: relative;
      width: 380px;
      max-width: 100%;
    }
    .header-search input {
      width: 100%;
      height: 42px;
      background-color: #f1f4f9;
      border: 1px solid transparent;
      border-radius: 6px;
      padding: 0 40px 0 38px;
      font-size: 13px;
      color: var(--text-main);
      outline: none;
      transition: all 0.2s ease;
    }
    .header-search input:focus {
      background: #fff;
      border-color: var(--primary);
      box-shadow: 0 0 0 3px rgba(25, 82, 168, 0.1);
    }
    .search-icon-left {
      position: absolute;
      left: 12px;
      top: 50%;
      transform: translateY(-50%);
      color: var(--text-light);
      font-size: 15px;
      line-height: 1;
    }
    .search-arrow-right {
      position: absolute;
      right: 14px;
      top: 50%;
      transform: translateY(-50%);
      color: var(--text-light);
      font-size: 15px;
    }
    /* Nav Bar */
    .main-nav {
      background: #ffffff;
      border-bottom: 1px solid var(--border-color);
    }
    .main-nav .container {
      display: flex;
      justify-content: space-between;
      align-items: center;
    }
    .nav-list {
      display: flex;
      list-style: none;
      gap: 32px;
    }
    .nav-list a {
      display: block;
      padding: 16px 0;
      font-size: 15px;
      font-weight: 600;
      color: #334155;
      position: relative;
    }
    .nav-list a:hover,
    .nav-list a.active {
      color: var(--primary);
    }
    .nav-list a.active::after {
      content: "";
      position: absolute;
      bottom: 0;
      left: 0;
      width: 100%;
      height: 3px;
      background-color: var(--primary);
      border-radius: 3px 3px 0 0;
    }
    .nav-right-link {
      font-size: 14px;
      color: var(--text-muted);
      display: flex;
      align-items: center;
      gap: 4px;
    }
    /* Breadcrumb */
    .breadcrumb-bar {
      padding: 14px 0;
      font-size: 13px;
      color: var(--text-light);
      border-bottom: 1px solid var(--border-color);
      background: #fff;
    }
    .breadcrumb-bar a {
      color: var(--text-muted);
    }
    .breadcrumb-bar span {
      margin: 0 6px;
    }
    /* Category Hero Banner */
    .category-hero {
      position: relative;
      background: linear-gradient(rgba(15, 54, 116, 0.88), rgba(22, 50, 92, 0.92)), url('/assets/images/5143bf1570a32300.jpg') center/cover no-repeat;
      color: #ffffff;
      padding: 64px 0 56px;
    }
    .hero-content {
      max-width: 780px;
    }
    .hero-tag {
      display: inline-block;
      background: rgba(255, 255, 255, 0.16);
      border: 1px solid rgba(255, 255, 255, 0.28);
      padding: 4px 12px;
      border-radius: 20px;
      font-size: 12px;
      font-weight: 600;
      letter-spacing: 0.5px;
      margin-bottom: 16px;
    }
    .category-hero h2 {
      font-size: 32px;
      font-weight: 800;
      line-height: 1.3;
      margin-bottom: 14px;
      letter-spacing: 0.5px;
    }
    .category-hero p {
      font-size: 15px;
      line-height: 1.8;
      color: #e2e8f0;
      margin-bottom: 24px;
    }
    .hero-metrics {
      display: flex;
      gap: 32px;
      border-top: 1px solid rgba(255, 255, 255, 0.15);
      padding-top: 20px;
    }
    .metric-item strong {
      display: block;
      font-size: 20px;
      font-weight: 700;
      color: #38bdf8;
    }
    .metric-item span {
      font-size: 12px;
      color: #cbd5e1;
    }
    /* Highlights Grid */
    .section-highlights {
      padding: 48px 0;
      background: #ffffff;
      border-bottom: 1px solid var(--border-color);
    }
    .section-title-wrap {
      margin-bottom: 32px;
      text-align: left;
    }
    .section-subtitle {
      font-size: 12px;
      font-weight: 700;
      color: var(--primary);
      text-transform: uppercase;
      letter-spacing: 1px;
      margin-bottom: 4px;
      display: block;
    }
    .section-title-wrap h3 {
      font-size: 24px;
      font-weight: 700;
      color: #0f172a;
    }
    .grid-4 {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
    }
    .highlight-card {
      background: var(--bg-body);
      border: 1px solid var(--border-color);
      border-radius: 8px;
      padding: 24px 20px;
      transition: transform 0.2s ease, box-shadow 0.2s ease;
    }
    .highlight-card:hover {
      transform: translateY(-3px);
      box-shadow: 0 10px 20px rgba(0, 0, 0, 0.04);
      border-color: #cbd5e1;
    }
    .highlight-icon {
      font-size: 22px;
      font-weight: bold;
      color: var(--primary);
      margin-bottom: 12px;
      display: inline-block;
    }
    .highlight-card h4 {
      font-size: 16px;
      font-weight: 700;
      color: #1e293b;
      margin-bottom: 8px;
    }
    .highlight-card p {
      font-size: 13px;
      color: var(--text-muted);
      line-height: 1.6;
    }
    /* Dynamic CMS Article List */
    .section-posts {
      padding: 50px 0 60px;
    }
    .posts-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
      margin-top: 24px;
    }
    .post-card {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: 8px;
      overflow: hidden;
      display: flex;
      flex-direction: column;
      transition: transform 0.2s ease, box-shadow 0.2s ease;
    }
    .post-card:hover {
      transform: translateY(-4px);
      box-shadow: 0 12px 24px rgba(25, 82, 168, 0.08);
      border-color: #bfdbfe;
    }
    .post-card-thumb {
      width: 100%;
      height: 180px;
      object-fit: cover;
      display: block;
      border-bottom: 1px solid var(--border-light);
    }
    .post-card-body {
      padding: 20px;
      flex: 1;
      display: flex;
      flex-direction: column;
    }
    .post-meta {
      display: flex;
      justify-content: space-between;
      align-items: center;
      font-size: 12px;
      color: var(--text-light);
      margin-bottom: 10px;
    }
    .post-category {
      color: var(--primary);
      font-weight: 600;
      background: var(--primary-light);
      padding: 2px 8px;
      border-radius: 4px;
    }
    .post-card-title {
      font-size: 16px;
      font-weight: 700;
      line-height: 1.4;
      color: #0f172a;
      margin-bottom: 10px;
      transition: color 0.2s ease;
    }
    .post-card:hover .post-card-title {
      color: var(--primary);
    }
    .post-card-excerpt {
      font-size: 13px;
      color: var(--text-muted);
      line-height: 1.6;
      margin-bottom: 16px;
      flex: 1;
      display: -webkit-box;
      -webkit-line-clamp: 3;
      -webkit-box-orient: vertical;
      overflow: hidden;
    }
    .post-card-footer {
      border-top: 1px solid var(--border-light);
      padding-top: 12px;
      display: flex;
      justify-content: space-between;
      align-items: center;
      font-size: 13px;
      font-weight: 600;
      color: var(--primary);
    }
    .empty-state {
      padding: 60px 20px;
      text-align: center;
      background: #ffffff;
      border: 1px dashed var(--border-color);
      border-radius: 8px;
      color: var(--text-muted);
      font-size: 15px;
    }
    /* Flow & FAQ Section */
    .section-knowledge {
      padding: 50px 0 60px;
      background: #ffffff;
      border-top: 1px solid var(--border-color);
      border-bottom: 1px solid var(--border-color);
    }
    .faq-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 24px;
    }
    .faq-item {
      border: 1px solid var(--border-color);
      border-radius: 8px;
      padding: 20px 24px;
      background: var(--bg-body);
    }
    .faq-item h4 {
      font-size: 15px;
      font-weight: 700;
      color: #0f172a;
      margin-bottom: 8px;
      display: flex;
      align-items: center;
      gap: 8px;
    }
    .faq-item h4::before {
      content: "Q";
      display: inline-block;
      width: 20px;
      height: 20px;
      background: var(--primary);
      color: #fff;
      font-size: 11px;
      font-weight: 800;
      border-radius: 4px;
      text-align: center;
      line-height: 20px;
    }
    .faq-item p {
      font-size: 13px;
      color: var(--text-muted);
      line-height: 1.7;
    }
    /* Call to Action Bar */
    .section-cta {
      padding: 48px 0;
      background: linear-gradient(135deg, #102a4d, #1952a8);
      color: #ffffff;
      text-align: center;
    }
    .cta-box {
      max-width: 640px;
      margin: 0 auto;
    }
    .cta-box h3 {
      font-size: 24px;
      font-weight: 700;
      margin-bottom: 12px;
    }
    .cta-box p {
      font-size: 14px;
      color: #e2e8f0;
      margin-bottom: 24px;
      line-height: 1.7;
    }
    .cta-btn {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      background: #ffffff;
      color: var(--primary-dark);
      padding: 12px 28px;
      border-radius: 6px;
      font-size: 14px;
      font-weight: 700;
      transition: all 0.2s ease;
    }
    .cta-btn:hover {
      background: #f1f5f9;
      color: var(--primary);
      transform: translateY(-2px);
    }
    /* Site Footer */
    .site-footer {
      background-color: #ffffff;
      border-top: 1px solid var(--border-color);
      padding: 56px 0 24px;
    }
    .footer-top {
      display: grid;
      grid-template-columns: 2fr 1fr 1fr;
      gap: 40px;
      margin-bottom: 40px;
    }
    .footer-desc {
      font-size: 13px;
      color: var(--text-muted);
      line-height: 1.8;
      margin-top: 16px;
      max-width: 420px;
    }
    .footer-col h5 {
      font-size: 15px;
      font-weight: 700;
      color: #0f172a;
      margin-bottom: 16px;
    }
    .footer-links {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 10px;
    }
    .footer-links a {
      font-size: 13px;
      color: var(--text-muted);
      transition: color 0.2s ease;
    }
    .footer-links a:hover {
      color: var(--primary);
    }
    .footer-bottom {
      border-top: 1px solid var(--border-light);
      padding-top: 24px;
      display: flex;
      justify-content: space-between;
      align-items: center;
      font-size: 12px;
      color: var(--text-light);
      flex-wrap: wrap;
      gap: 12px;
    }
    /* Responsive Media Queries */
    @media (max-width: 1024px) {
      .grid-4 {
        grid-template-columns: repeat(2, 1fr);
      }
      .posts-grid {
        grid-template-columns: repeat(2, 1fr);
      }
    }
    @media (max-width: 768px) {
      .topbar .container {
        flex-direction: column;
        gap: 6px;
        text-align: center;
      }
      .site-header .container {
        flex-direction: column;
        align-items: stretch;
      }
      .header-search {
        width: 100%;
      }
      .nav-list {
        overflow-x: auto;
        white-space: nowrap;
        gap: 20px;
        padding-bottom: 4px;
      }
      .nav-right-link {
        display: none;
      }
      .category-hero h2 {
        font-size: 26px;
      }
      .hero-metrics {
        flex-wrap: wrap;
        gap: 16px;
      }
      .faq-grid {
        grid-template-columns: 1fr;
      }
      .footer-top {
        grid-template-columns: 1fr;
        gap: 28px;
      }
      .footer-bottom {
        flex-direction: column;
        align-items: flex-start;
      }
    }
    @media (max-width: 520px) {
      .grid-4 {
        grid-template-columns: 1fr;
      }
      .posts-grid {
        grid-template-columns: 1fr;
      }
      .category-hero {
        padding: 40px 0;
      }
      .category-hero h2 {
        font-size: 22px;
      }
    }