/* roulang page: index */
:root {
      --primary-blue: #1c52a3;
      --primary-dark: #0f2c59;
      --secondary-blue: #2563eb;
      --navy-bar: #0d2040;
      --text-main: #111827;
      --text-muted: #6b7280;
      --text-sub: #4b5563;
      --bg-light: #f8fafc;
      --border-color: #e5e7eb;
      --border-dark: #1e3a5f;
    }

    body {
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
      color: var(--text-main);
      background-color: #ffffff;
      -webkit-font-smoothing: antialiased;
      line-height: 1.5;
    }

    /* Top Strip */
    .top-utility-strip {
      background-color: var(--navy-bar);
      color: #94a3b8;
      font-size: 12px;
      padding: 6px 0;
    }
    .top-utility-strip a {
      color: #cbd5e1;
      text-decoration: none;
      transition: color 0.2s;
    }
    .top-utility-strip a:hover {
      color: #ffffff;
    }

    /* Header & Brand */
    .header-main {
      padding: 16px 0 12px;
      background: #ffffff;
      border-bottom: 1px solid #f1f5f9;
    }
    .brand-logo-wrap {
      display: flex;
      align-items: center;
      gap: 12px;
      text-decoration: none;
    }
    .brand-icon-box {
      width: 44px;
      height: 44px;
      background: var(--primary-blue);
      border-radius: 8px;
      display: flex;
      align-items: center;
      justify-content: center;
      color: #ffffff;
      font-size: 22px;
    }
    .brand-text-wrap h1 {
      margin: 0;
      font-size: 24px;
      font-weight: 800;
      color: var(--text-main);
      letter-spacing: -0.5px;
      line-height: 1.2;
    }
    .brand-text-wrap .brand-en {
      font-size: 11px;
      letter-spacing: 1.5px;
      color: #94a3b8;
      font-weight: 600;
      text-transform: uppercase;
      display: block;
    }
    .header-slogan {
      font-size: 13px;
      color: var(--text-muted);
      border-left: 1px solid #e2e8f0;
      padding-left: 14px;
      margin-left: 8px;
    }
    .header-search-bar {
      position: relative;
      max-width: 320px;
      width: 100%;
    }
    .header-search-bar input {
      background: #f8fafc;
      border: 1px solid #e2e8f0;
      border-radius: 6px;
      font-size: 13px;
      padding: 8px 36px 8px 34px;
      width: 100%;
      outline: none;
      transition: border-color 0.2s, background 0.2s;
    }
    .header-search-bar input:focus {
      border-color: var(--primary-blue);
      background: #ffffff;
    }
    .header-search-bar .search-icon {
      position: absolute;
      left: 12px;
      top: 50%;
      transform: translateY(-50%);
      color: #94a3b8;
      font-size: 14px;
    }
    .header-search-bar .action-arrow {
      position: absolute;
      right: 12px;
      top: 50%;
      transform: translateY(-50%);
      color: #64748b;
      font-size: 13px;
    }

    /* Navbar */
    .site-nav {
      background: #ffffff;
      border-bottom: 2px solid #0f172a;
    }
    .nav-links-wrap {
      display: flex;
      align-items: center;
      gap: 28px;
      margin: 0;
      padding: 0;
      list-style: none;
    }
    .nav-links-wrap li a {
      display: inline-block;
      font-size: 15px;
      font-weight: 600;
      color: #334155;
      text-decoration: none;
      padding: 14px 2px;
      position: relative;
    }
    .nav-links-wrap li a.active,
    .nav-links-wrap li a:hover {
      color: var(--primary-blue);
    }
    .nav-links-wrap li a.active::after {
      content: '';
      position: absolute;
      bottom: -2px;
      left: 0;
      width: 100%;
      height: 2px;
      background: var(--primary-blue);
    }
    .nav-side-link {
      font-size: 14px;
      font-weight: 500;
      color: #475569;
      text-decoration: none;
      display: flex;
      align-items: center;
      gap: 4px;
    }
    .nav-side-link:hover {
      color: var(--primary-blue);
    }

    /* Sub-bar / Desk */
    .desk-header-section {
      padding: 24px 0 16px;
      border-bottom: 1px solid #e2e8f0;
      background: #ffffff;
    }
    .desk-tag {
      background: #0f172a;
      color: #ffffff;
      font-size: 13px;
      font-weight: 600;
      padding: 8px 18px;
      display: inline-flex;
      align-items: center;
      justify-content: center;
    }
    .desk-main-title {
      font-size: 24px;
      font-weight: 800;
      color: #0f172a;
      margin: 0 16px 0 18px;
    }
    .desk-sub-desc {
      font-size: 13px;
      color: #64748b;
      margin: 0;
    }

    /* Grid Portal / Quick Entry */
    .portal-quick-grid {
      border: 1px solid #e2e8f0;
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      background: #ffffff;
      margin-top: 24px;
      margin-bottom: 32px;
    }
    .portal-cell {
      padding: 20px 24px;
      border-right: 1px solid #e2e8f0;
      display: flex;
      align-items: center;
      justify-content: space-between;
      text-decoration: none;
      color: inherit;
      transition: background 0.2s;
    }
    .portal-cell:last-child {
      border-right: none;
    }
    .portal-cell:hover {
      background: #f8fafc;
    }
    .portal-cell.blue-accent {
      background: var(--primary-blue);
      color: #ffffff;
    }
    .portal-cell.blue-accent:hover {
      background: #17458d;
    }
    .portal-cell-left {
      display: flex;
      gap: 16px;
      align-items: flex-start;
    }
    .portal-cell-num {
      font-size: 13px;
      font-weight: 700;
      color: #94a3b8;
      font-family: monospace;
      line-height: 1.4;
    }
    .portal-cell.blue-accent .portal-cell-num {
      color: #cbd5e1;
    }
    .portal-cell-title {
      font-size: 16px;
      font-weight: 700;
      margin-bottom: 4px;
      color: #0f172a;
    }
    .portal-cell.blue-accent .portal-cell-title {
      color: #ffffff;
    }
    .portal-cell-desc {
      font-size: 12px;
      color: #64748b;
      margin: 0;
    }
    .portal-cell.blue-accent .portal-cell-desc {
      color: #e2e8f0;
    }
    .portal-cell-arrow {
      font-size: 15px;
      color: #64748b;
    }
    .portal-cell.blue-accent .portal-cell-arrow {
      color: #ffffff;
    }

    /* Split Section Dual Layout (As seen in Reference Images) */
    .column-section-title-wrap {
      display: flex;
      align-items: center;
      justify-content: space-between;
      padding-bottom: 10px;
      border-bottom: 2px solid #0f172a;
      margin-bottom: 12px;
    }
    .column-title {
      font-size: 20px;
      font-weight: 800;
      display: flex;
      align-items: center;
      gap: 8px;
      margin: 0;
    }
    .column-title::before {
      content: '';
      width: 4px;
      height: 18px;
      background: var(--primary-blue);
      display: inline-block;
    }
    .column-title-arrow {
      font-size: 16px;
      color: #0f172a;
      text-decoration: none;
    }
    .column-subtitle {
      font-size: 13px;
      color: #64748b;
      margin-bottom: 18px;
    }

    /* Featured Banner Card (Dark Cityscape Background) */
    .feature-banner-card {
      position: relative;
      height: 250px;
      border-radius: 4px;
      overflow: hidden;
      margin-bottom: 16px;
      background-size: cover;
      background-position: center;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
      padding: 24px;
      text-decoration: none;
      color: #ffffff;
    }
    .feature-banner-card::before {
      content: '';
      position: absolute;
      inset: 0;
      background: linear-gradient(180deg, rgba(15, 23, 42, 0.45) 0%, rgba(15, 23, 42, 0.9) 100%);
      z-index: 1;
    }
    .feature-banner-card:hover h3 {
      text-decoration: underline;
    }
    .feature-banner-content {
      position: relative;
      z-index: 2;
    }
    .feature-banner-content h3 {
      font-size: 22px;
      font-weight: 700;
      line-height: 1.35;
      color: #ffffff;
      margin: 0;
      text-shadow: 0 2px 4px rgba(0,0,0,0.5);
    }
    .feature-banner-controls {
      position: relative;
      z-index: 2;
      display: flex;
      align-items: center;
      justify-content: space-between;
    }
    .feature-banner-nav {
      display: flex;
      align-items: center;
      gap: 12px;
      font-size: 12px;
      color: #cbd5e1;
    }
    .feature-banner-nav button {
      background: transparent;
      border: 1px solid rgba(255,255,255,0.4);
      width: 24px;
      height: 24px;
      border-radius: 50%;
      color: #ffffff;
      display: flex;
      align-items: center;
      justify-content: center;
      padding: 0;
      cursor: pointer;
    }
    .feature-banner-nav button:hover {
      background: rgba(255,255,255,0.2);
    }

    /* Article List Standard */
    .standard-article-list {
      list-style: none;
      padding: 0;
      margin: 0 0 16px;
    }
    .standard-article-item {
      padding: 14px 0;
      border-bottom: 1px solid #f1f5f9;
      display: flex;
      flex-direction: column;
      gap: 6px;
    }
    .standard-article-item:last-child {
      border-bottom: 1px solid #e2e8f0;
    }
    .standard-article-title-wrap {
      display: flex;
      justify-content: space-between;
      align-items: baseline;
      gap: 16px;
    }
    .standard-article-link {
      font-size: 15px;
      font-weight: 600;
      color: #1e293b;
      text-decoration: none;
      line-height: 1.45;
      flex: 1;
      display: -webkit-box;
      -webkit-line-clamp: 1;
      -webkit-box-orient: vertical;
      overflow: hidden;
    }
    .standard-article-link:hover {
      color: var(--primary-blue);
    }
    .standard-article-meta {
      display: flex;
      justify-content: space-between;
      align-items: center;
      font-size: 12px;
      color: #94a3b8;
    }
    .standard-article-meta .source-name {
      color: #64748b;
    }

    .column-more-link {
      display: flex;
      align-items: center;
      justify-content: space-between;
      padding: 12px 0;
      color: #475569;
      text-decoration: none;
      font-size: 14px;
      font-weight: 600;
      transition: color 0.2s;
    }
    .column-more-link:hover {
      color: var(--primary-blue);
    }

    /* Middle Bulletin Bar Section */
    .market-bulletin-section {
      background-color: #f8fafc;
      padding: 44px 0;
      margin-top: 36px;
      border-top: 1px solid #e2e8f0;
      border-bottom: 1px solid #e2e8f0;
    }
    .bulletin-header-row {
      display: flex;
      align-items: center;
      justify-content: space-between;
      margin-bottom: 24px;
    }
    .bulletin-badge-title {
      display: flex;
      align-items: center;
      gap: 12px;
    }
    .bulletin-badge {
      background: var(--primary-blue);
      color: #ffffff;
      font-size: 11px;
      font-weight: 700;
      letter-spacing: 1px;
      padding: 4px 10px;
      border-radius: 2px;
      text-transform: uppercase;
    }
    .bulletin-title {
      font-size: 20px;
      font-weight: 800;
      color: #0f172a;
      margin: 0;
    }
    .bulletin-more {
      font-size: 13px;
      font-weight: 600;
      color: #475569;
      text-decoration: none;
      display: flex;
      align-items: center;
      gap: 4px;
    }
    .bulletin-more:hover {
      color: var(--primary-blue);
    }
    .bulletin-grid {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 16px 36px;
    }
    .bulletin-item {
      display: flex;
      align-items: flex-start;
      gap: 14px;
      padding-bottom: 12px;
      border-bottom: 1px solid #e2e8f0;
    }
    .bulletin-num {
      font-size: 13px;
      font-weight: 700;
      color: var(--primary-blue);
      font-family: monospace;
      padding-top: 2px;
    }
    .bulletin-body {
      flex: 1;
    }
    .bulletin-item-link {
      font-size: 15px;
      font-weight: 600;
      color: #1e293b;
      text-decoration: none;
      display: block;
      margin-bottom: 4px;
      line-height: 1.4;
    }
    .bulletin-item-link:hover {
      color: var(--primary-blue);
    }
    .bulletin-item-meta {
      display: flex;
      justify-content: space-between;
      font-size: 12px;
      color: #94a3b8;
    }

    /* Footer */
    .site-footer {
      background: #f8fafc;
      padding: 56px 0 24px;
      border-top: 1px solid #e2e8f0;
      margin-top: 48px;
    }
    .footer-brand-summary {
      font-size: 13px;
      color: #64748b;
      margin-top: 14px;
      max-width: 360px;
      line-height: 1.6;
    }
    .footer-nav-col h4 {
      font-size: 14px;
      font-weight: 700;
      color: #0f172a;
      margin-bottom: 16px;
    }
    .footer-nav-list {
      list-style: none;
      padding: 0;
      margin: 0;
    }
    .footer-nav-list li {
      margin-bottom: 10px;
    }
    .footer-nav-list li a {
      font-size: 13px;
      color: #64748b;
      text-decoration: none;
      transition: color 0.2s;
    }
    .footer-nav-list li a:hover {
      color: var(--primary-blue);
    }
    .footer-bottom-bar {
      margin-top: 48px;
      padding-top: 24px;
      border-top: 1px solid #e2e8f0;
      display: flex;
      align-items: center;
      justify-content: space-between;
      font-size: 12px;
      color: #94a3b8;
    }
    .footer-disclaimer {
      font-size: 12px;
      color: #94a3b8;
      text-align: right;
      max-width: 620px;
    }

    /* Responsive */
    @media (max-width: 1024px) {
      .portal-quick-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .portal-cell:nth-child(2) {
        border-right: none;
      }
      .portal-cell:last-child {
        grid-column: span 2;
        border-top: 1px solid #e2e8f0;
      }
    }

    @media (max-width: 768px) {
      .header-search-bar {
        max-width: 100%;
        margin-top: 14px;
      }
      .portal-quick-grid {
        grid-template-columns: 1fr;
      }
      .portal-cell {
        border-right: none;
        border-bottom: 1px solid #e2e8f0;
      }
      .portal-cell:last-child {
        grid-column: auto;
      }
      .bulletin-grid {
        grid-template-columns: 1fr;
      }
      .footer-bottom-bar {
        flex-direction: column;
        text-align: center;
        gap: 12px;
      }
      .footer-disclaimer {
        text-align: center;
      }
    }

/* roulang page: article */
:root {
        --primary-blue: #1c52a3;
        --primary-dark: #0f2c59;
        --secondary-blue: #2563eb;
        --navy-bar: #0d2040;
        --text-main: #111827;
        --text-muted: #6b7280;
        --text-sub: #4b5563;
        --bg-light: #f8fafc;
        --border-color: #e5e7eb;
        --border-dark: #1e3a5f;
    }
    body {
        font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
        color: var(--text-main);
        background-color: #ffffff;
        -webkit-font-smoothing: antialiased;
        line-height: 1.6;
    }
    .top-utility-strip {
        background-color: #071529;
        font-size: 12px;
        padding: 6px 0;
        color: #94a3b8;
        border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    }
    .top-utility-strip a {
        color: #cbd5e1;
        text-decoration: none;
        transition: color 0.2s;
    }
    .top-utility-strip a:hover {
        color: #ffffff;
    }
    .header-main {
        padding: 16px 0 14px;
        background: #ffffff;
        border-bottom: 1px solid #f1f5f9;
    }
    .brand-logo-wrap {
        display: flex;
        align-items: center;
        gap: 12px;
        text-decoration: none;
    }
    .brand-icon-box {
        width: 44px;
        height: 44px;
        background: var(--primary-blue);
        border-radius: 8px;
        display: flex;
        align-items: center;
        justify-content: center;
        color: #ffffff;
        font-size: 22px;
    }
    .brand-text-wrap h1, .brand-text-wrap .brand-title {
        margin: 0;
        font-size: 24px;
        font-weight: 800;
        color: var(--text-main);
        letter-spacing: -0.5px;
        line-height: 1.2;
    }
    .brand-text-wrap .brand-en {
        font-size: 11px;
        letter-spacing: 1.5px;
        color: #94a3b8;
        font-weight: 600;
        text-transform: uppercase;
        display: block;
    }
    .header-slogan {
        font-size: 13px;
        color: var(--text-muted);
        border-left: 1px solid #e2e8f0;
        padding-left: 14px;
        margin-left: 8px;
    }
    .header-search-bar {
        position: relative;
        max-width: 320px;
        width: 100%;
    }
    .header-search-bar input {
        background: #f8fafc;
        border: 1px solid #e2e8f0;
        border-radius: 6px;
        font-size: 13px;
        padding: 8px 36px 8px 34px;
        width: 100%;
        outline: none;
        transition: border-color 0.2s, background 0.2s;
    }
    .header-search-bar input:focus {
        border-color: var(--primary-blue);
        background: #ffffff;
    }
    .header-search-bar .search-icon {
        position: absolute;
        left: 12px;
        top: 50%;
        transform: translateY(-50%);
        color: #94a3b8;
        font-size: 14px;
    }
    .header-search-bar .action-arrow {
        position: absolute;
        right: 12px;
        top: 50%;
        transform: translateY(-50%);
        color: #64748b;
        font-size: 13px;
    }
    .site-nav {
        background: #ffffff;
        border-bottom: 2px solid #0f172a;
    }
    .nav-links-wrap {
        display: flex;
        align-items: center;
        gap: 28px;
        margin: 0;
        padding: 0;
        list-style: none;
    }
    .nav-links-wrap li a {
        display: inline-block;
        font-size: 15px;
        font-weight: 600;
        color: #334155;
        text-decoration: none;
        padding: 14px 2px;
        position: relative;
    }
    .nav-links-wrap li a.active,
    .nav-links-wrap li a:hover {
        color: var(--primary-blue);
    }
    .nav-links-wrap li a.active::after {
        content: '';
        position: absolute;
        bottom: -2px;
        left: 0;
        width: 100%;
        height: 2px;
        background: var(--primary-blue);
    }
    .nav-side-link {
        font-size: 14px;
        font-weight: 500;
        color: #475569;
        text-decoration: none;
        display: flex;
        align-items: center;
        gap: 4px;
    }
    .nav-side-link:hover {
        color: var(--primary-blue);
    }
    .breadcrumb-nav {
        padding: 14px 0;
        background: #f8fafc;
        border-bottom: 1px solid #e2e8f0;
        font-size: 13px;
    }
    .breadcrumb-nav a {
        color: #64748b;
        text-decoration: none;
    }
    .breadcrumb-nav a:hover {
        color: var(--primary-blue);
    }
    .breadcrumb-nav span {
        color: #94a3b8;
        margin: 0 6px;
    }
    .article-container {
        padding: 40px 0 60px;
    }
    .article-header {
        border-bottom: 1px solid #e2e8f0;
        padding-bottom: 20px;
        margin-bottom: 28px;
    }
    .article-tag-meta {
        display: flex;
        align-items: center;
        gap: 12px;
        margin-bottom: 14px;
    }
    .article-tag {
        background: #0f172a;
        color: #ffffff;
        font-size: 12px;
        font-weight: 600;
        padding: 4px 10px;
        border-radius: 2px;
    }
    .article-date {
        font-size: 13px;
        color: #64748b;
    }
    .article-title-main {
        font-size: 30px;
        font-weight: 800;
        color: #0f172a;
        line-height: 1.35;
        letter-spacing: -0.5px;
        margin-bottom: 18px;
    }
    .article-digest-box {
        background: #f1f5f9;
        border-left: 4px solid var(--primary-blue);
        padding: 16px 20px;
        font-size: 14px;
        color: #475569;
        line-height: 1.7;
        margin-bottom: 30px;
        border-radius: 0 4px 4px 0;
    }
    .article-body-content {
        font-size: 16px;
        color: #1e293b;
        line-height: 1.85;
    }
    .article-body-content p {
        margin-bottom: 22px;
    }
    .article-body-content h2 {
        font-size: 22px;
        font-weight: 700;
        color: #0f172a;
        margin-top: 36px;
        margin-bottom: 16px;
        padding-bottom: 8px;
        border-bottom: 1px solid #e2e8f0;
    }
    .article-body-content h3 {
        font-size: 18px;
        font-weight: 700;
        color: #1e293b;
        margin-top: 26px;
        margin-bottom: 12px;
    }
    .article-body-content img {
        max-width: 100%;
        height: auto;
        border-radius: 4px;
        margin: 20px 0;
    }
    .article-body-content blockquote {
        margin: 24px 0;
        padding: 14px 20px;
        background: #fafafa;
        border-left: 4px solid #cbd5e1;
        color: #475569;
        font-style: italic;
    }
    .article-sidebar-card {
        border: 1px solid #e2e8f0;
        background: #ffffff;
        padding: 22px;
        margin-bottom: 24px;
    }
    .sidebar-title {
        font-size: 16px;
        font-weight: 700;
        color: #0f172a;
        padding-bottom: 10px;
        border-bottom: 2px solid #0f172a;
        margin-bottom: 16px;
        display: flex;
        justify-content: space-between;
        align-items: center;
    }
    .sidebar-feature-box {
        position: relative;
        height: 170px;
        border-radius: 4px;
        overflow: hidden;
        margin-bottom: 16px;
        background-size: cover;
        background-position: center;
        display: flex;
        flex-direction: column;
        justify-content: flex-end;
        padding: 16px;
        text-decoration: none;
    }
    .sidebar-feature-box::before {
        content: '';
        position: absolute;
        inset: 0;
        background: linear-gradient(180deg, rgba(15, 23, 42, 0.2) 0%, rgba(15, 23, 42, 0.88) 100%);
    }
    .sidebar-feature-box span {
        position: relative;
        z-index: 2;
        color: #ffffff;
        font-size: 14px;
        font-weight: 700;
        line-height: 1.4;
    }
    .sidebar-news-list {
        list-style: none;
        padding: 0;
        margin: 0;
    }
    .sidebar-news-list li {
        padding: 10px 0;
        border-bottom: 1px dashed #e2e8f0;
    }
    .sidebar-news-list li:last-child {
        border-bottom: none;
    }
    .sidebar-news-list a {
        font-size: 13px;
        color: #334155;
        text-decoration: none;
        display: -webkit-box;
        -webkit-line-clamp: 2;
        -webkit-box-orient: vertical;
        overflow: hidden;
        line-height: 1.5;
        transition: color 0.2s;
    }
    .sidebar-news-list a:hover {
        color: var(--primary-blue);
    }
    .sidebar-news-meta {
        font-size: 11px;
        color: #94a3b8;
        margin-top: 4px;
        display: flex;
        justify-content: space-between;
    }
    .platform-brief-card {
        background: #0f172a;
        color: #ffffff;
        padding: 24px;
        border-radius: 4px;
    }
    .platform-brief-card h4 {
        font-size: 16px;
        font-weight: 700;
        margin-bottom: 12px;
        color: #ffffff;
    }
    .platform-brief-card p {
        font-size: 13px;
        color: #94a3b8;
        line-height: 1.6;
        margin-bottom: 16px;
    }
    .platform-brief-btn {
        display: block;
        text-align: center;
        background: var(--primary-blue);
        color: #ffffff;
        font-size: 13px;
        font-weight: 600;
        padding: 9px 14px;
        text-decoration: none;
        border-radius: 4px;
        transition: background 0.2s;
    }
    .platform-brief-btn:hover {
        background: #174284;
        color: #ffffff;
    }
    .site-footer {
        background: #f8fafc;
        border-top: 1px solid #e2e8f0;
        padding: 50px 0 30px;
        color: #475569;
    }
    .footer-brand-summary {
        font-size: 13px;
        line-height: 1.7;
        color: #64748b;
        max-width: 440px;
        margin-top: 12px;
    }
    .footer-nav-col h4 {
        font-size: 15px;
        font-weight: 700;
        color: #0f172a;
        margin-bottom: 16px;
    }
    .footer-nav-list {
        list-style: none;
        padding: 0;
        margin: 0;
    }
    .footer-nav-list li {
        margin-bottom: 8px;
    }
    .footer-nav-list a {
        font-size: 13px;
        color: #64748b;
        text-decoration: none;
        transition: color 0.2s;
    }
    .footer-nav-list a:hover {
        color: var(--primary-blue);
    }
    .footer-bottom-bar {
        border-top: 1px solid #e2e8f0;
        margin-top: 40px;
        padding-top: 20px;
        display: flex;
        justify-content: space-between;
        align-items: center;
        font-size: 12px;
        color: #94a3b8;
        flex-wrap: wrap;
        gap: 12px;
    }
    .footer-disclaimer {
        font-size: 11px;
        color: #94a3b8;
        max-width: 600px;
    }
    @media (max-width: 991px) {
        .portal-quick-grid {
            grid-template-columns: 1fr;
        }
        .article-title-main {
            font-size: 24px;
        }
    }
    @media (max-width: 768px) {
        .nav-links-wrap {
            overflow-x: auto;
            white-space: nowrap;
            gap: 16px;
            padding-bottom: 6px;
        }
        .header-main {
            padding: 12px 0;
        }
        .header-search-bar {
            margin-top: 10px;
            max-width: 100%;
        }
        .article-container {
            padding: 24px 0 40px;
        }
    }

/* roulang page: category1 */
:root {
      --primary-blue: #1c52a3;
      --primary-dark: #0f2c59;
      --secondary-blue: #2563eb;
      --navy-bar: #0d2040;
      --text-main: #111827;
      --text-muted: #6b7280;
      --text-sub: #4b5563;
      --bg-light: #f8fafc;
      --border-color: #e5e7eb;
      --border-dark: #1e3a5f;
    }
    body {
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
      color: var(--text-main);
      background-color: #ffffff;
      -webkit-font-smoothing: antialiased;
      line-height: 1.5;
    }
    a {
      text-decoration: none;
      color: inherit;
    }
    .top-utility-strip {
      background: #0b1a30;
      color: #94a3b8;
      font-size: 12px;
      padding: 6px 0;
      border-bottom: 1px solid rgba(255,255,255,0.06);
    }
    .top-utility-strip a {
      color: #cbd5e1;
      text-decoration: none;
      transition: color 0.2s;
    }
    .top-utility-strip a:hover {
      color: #ffffff;
    }

    /* Header & Brand */
    .header-main {
      padding: 16px 0 12px;
      background: #ffffff;
      border-bottom: 1px solid #f1f5f9;
    }
    .brand-logo-wrap {
      display: flex;
      align-items: center;
      gap: 12px;
      text-decoration: none;
    }
    .brand-icon-box {
      width: 44px;
      height: 44px;
      background: var(--primary-blue);
      border-radius: 8px;
      display: flex;
      align-items: center;
      justify-content: center;
      color: #ffffff;
      font-size: 22px;
    }
    .brand-text-wrap h1 {
      margin: 0;
      font-size: 24px;
      font-weight: 800;
      color: var(--text-main);
      letter-spacing: -0.5px;
      line-height: 1.2;
    }
    .brand-text-wrap .brand-en {
      font-size: 11px;
      letter-spacing: 1.5px;
      color: #94a3b8;
      font-weight: 600;
      text-transform: uppercase;
      display: block;
    }
    .header-slogan {
      font-size: 13px;
      color: var(--text-muted);
      border-left: 1px solid #e2e8f0;
      padding-left: 14px;
      margin-left: 8px;
    }
    .header-search-bar {
      position: relative;
      max-width: 320px;
      width: 100%;
    }
    .header-search-bar input {
      background: #f8fafc;
      border: 1px solid #e2e8f0;
      border-radius: 6px;
      font-size: 13px;
      padding: 8px 36px 8px 34px;
      width: 100%;
      outline: none;
      transition: border-color 0.2s, background 0.2s;
    }
    .header-search-bar input:focus {
      border-color: var(--primary-blue);
      background: #ffffff;
    }
    .header-search-bar .search-icon {
      position: absolute;
      left: 12px;
      top: 50%;
      transform: translateY(-50%);
      color: #94a3b8;
      font-size: 14px;
    }
    .header-search-bar .action-arrow {
      position: absolute;
      right: 12px;
      top: 50%;
      transform: translateY(-50%);
      color: #64748b;
      font-size: 13px;
    }

    /* Navbar */
    .site-nav {
      background: #ffffff;
      border-bottom: 2px solid #0f172a;
    }
    .nav-links-wrap {
      display: flex;
      align-items: center;
      gap: 28px;
      margin: 0;
      padding: 0;
      list-style: none;
    }
    .nav-links-wrap li a {
      display: inline-block;
      font-size: 15px;
      font-weight: 600;
      color: #334155;
      text-decoration: none;
      padding: 14px 2px;
      position: relative;
    }
    .nav-links-wrap li a.active,
    .nav-links-wrap li a:hover {
      color: var(--primary-blue);
    }
    .nav-links-wrap li a.active::after {
      content: '';
      position: absolute;
      bottom: -2px;
      left: 0;
      width: 100%;
      height: 2px;
      background: var(--primary-blue);
    }
    .nav-side-link {
      font-size: 14px;
      font-weight: 500;
      color: #475569;
      text-decoration: none;
      display: flex;
      align-items: center;
      gap: 4px;
    }
    .nav-side-link:hover {
      color: var(--primary-blue);
    }

    /* Category Hero & Overview Bar */
    .category-intro-strip {
      background: #0f172a;
      color: #ffffff;
      padding: 32px 0 28px;
      border-bottom: 1px solid rgba(255,255,255,0.1);
    }
    .cat-badge {
      display: inline-block;
      background: rgba(28, 82, 163, 0.4);
      border: 1px solid #3b82f6;
      color: #93c5fd;
      font-size: 12px;
      font-weight: 600;
      padding: 4px 10px;
      border-radius: 4px;
      margin-bottom: 12px;
    }
    .cat-hero-title {
      font-size: 32px;
      font-weight: 800;
      color: #ffffff;
      letter-spacing: -0.5px;
      margin-bottom: 12px;
    }
    .cat-hero-desc {
      font-size: 15px;
      color: #cbd5e1;
      line-height: 1.7;
      max-width: 820px;
      margin: 0;
    }
    .cat-hero-kpis {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 16px;
      height: 100%;
      align-items: center;
    }
    .kpi-card {
      background: rgba(255,255,255,0.05);
      border: 1px solid rgba(255,255,255,0.1);
      padding: 16px;
      border-radius: 6px;
      text-align: center;
    }
    .kpi-val {
      font-size: 24px;
      font-weight: 800;
      color: #60a5fa;
      font-family: monospace, sans-serif;
    }
    .kpi-label {
      font-size: 12px;
      color: #94a3b8;
      margin-top: 4px;
    }

    /* Sub Desk Navigation Tabs */
    .desk-header-section {
      padding: 20px 0 14px;
      border-bottom: 1px solid #e2e8f0;
      background: #ffffff;
    }
    .desk-tag {
      background: #0f172a;
      color: #ffffff;
      font-size: 13px;
      font-weight: 600;
      padding: 6px 16px;
      display: inline-flex;
      align-items: center;
      justify-content: center;
    }
    .desk-main-title {
      font-size: 22px;
      font-weight: 800;
      color: #0f172a;
      margin: 0 16px 0 16px;
    }

    /* Portal Quad Grid */
    .portal-quick-grid {
      border: 1px solid #e2e8f0;
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      background: #ffffff;
      margin-top: 20px;
      margin-bottom: 28px;
    }
    .portal-cell {
      padding: 18px 20px;
      border-right: 1px solid #e2e8f0;
      text-decoration: none;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
      transition: background 0.2s;
    }
    .portal-cell:last-child {
      border-right: none;
    }
    .portal-cell:hover {
      background: #f8fafc;
    }
    .portal-cell.blue-accent {
      background: var(--primary-blue);
      color: #ffffff;
    }
    .portal-cell.blue-accent:hover {
      background: #17458a;
    }
    .portal-cell-top {
      display: flex;
      align-items: center;
      justify-content: space-between;
      margin-bottom: 8px;
    }
    .portal-cell-num {
      font-size: 12px;
      font-weight: 700;
      color: #94a3b8;
      font-family: monospace;
    }
    .portal-cell.blue-accent .portal-cell-num {
      color: #93c5fd;
    }
    .portal-cell-arrow {
      font-size: 14px;
      color: #64748b;
    }
    .portal-cell.blue-accent .portal-cell-arrow {
      color: #ffffff;
    }
    .portal-cell-title {
      font-size: 16px;
      font-weight: 700;
      margin-bottom: 4px;
      color: #0f172a;
    }
    .portal-cell.blue-accent .portal-cell-title {
      color: #ffffff;
    }
    .portal-cell-sub {
      font-size: 12px;
      color: #64748b;
      margin: 0;
    }
    .portal-cell.blue-accent .portal-cell-sub {
      color: #bfdbfe;
    }

    /* Core Product Matrix Section */
    .section-wrap {
      padding: 36px 0;
    }
    .section-title-bar {
      border-bottom: 2px solid #0f172a;
      padding-bottom: 12px;
      margin-bottom: 24px;
      display: flex;
      justify-content: space-between;
      align-items: flex-end;
    }
    .main-col-title {
      font-size: 20px;
      font-weight: 800;
      display: flex;
      align-items: center;
      gap: 10px;
      margin: 0;
    }
    .main-col-title::before {
      content: '';
      width: 4px;
      height: 20px;
      background: var(--primary-blue);
      display: inline-block;
    }

    /* Ratio Cards */
    .ratio-card-box {
      border: 1px solid #e2e8f0;
      border-radius: 6px;
      background: #ffffff;
      padding: 24px;
      height: 100%;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
      box-shadow: 0 1px 3px rgba(0,0,0,0.03);
      transition: transform 0.2s, box-shadow 0.2s;
    }
    .ratio-card-box:hover {
      transform: translateY(-2px);
      box-shadow: 0 8px 20px rgba(0,0,0,0.06);
    }
    .ratio-tag {
      font-size: 11px;
      font-weight: 700;
      padding: 3px 8px;
      background: #eff6ff;
      color: var(--primary-blue);
      border-radius: 4px;
      display: inline-block;
      margin-bottom: 12px;
    }
    .ratio-name {
      font-size: 18px;
      font-weight: 700;
      color: #0f172a;
      margin-bottom: 8px;
    }
    .ratio-param {
      font-size: 28px;
      font-weight: 800;
      color: #0f2c59;
      font-family: monospace;
      margin-bottom: 12px;
    }
    .ratio-param span {
      font-size: 14px;
      font-weight: 500;
      color: #64748b;
    }
    .ratio-feature-list {
      list-style: none;
      padding: 0;
      margin: 0 0 20px 0;
      border-top: 1px dashed #e2e8f0;
      padding-top: 14px;
    }
    .ratio-feature-list li {
      font-size: 13px;
      color: #475569;
      margin-bottom: 8px;
      display: flex;
      align-items: center;
      gap: 6px;
    }
    .ratio-feature-list li i {
      color: var(--primary-blue);
      font-size: 14px;
    }

    /* Reference Image Split Layout */
    .column-section-title-wrap {
      display: flex;
      align-items: center;
      justify-content: space-between;
      padding-bottom: 10px;
      border-bottom: 2px solid #0f172a;
      margin-bottom: 12px;
    }
    .column-title {
      font-size: 20px;
      font-weight: 800;
      display: flex;
      align-items: center;
      gap: 8px;
      margin: 0;
    }
    .column-title::before {
      content: '';
      width: 4px;
      height: 18px;
      background: var(--primary-blue);
      display: inline-block;
    }
    .column-title-arrow {
      font-size: 16px;
      color: #0f172a;
      text-decoration: none;
    }
    .column-subtitle {
      font-size: 13px;
      color: #64748b;
      margin-bottom: 18px;
    }

    /* Featured Banner Card */
    .feature-banner-card {
      position: relative;
      height: 250px;
      border-radius: 4px;
      overflow: hidden;
      margin-bottom: 16px;
      background-size: cover;
      background-position: center;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
      padding: 24px;
      text-decoration: none;
      color: #ffffff;
    }
    .feature-banner-card::before {
      content: '';
      position: absolute;
      inset: 0;
      background: linear-gradient(180deg, rgba(15, 23, 42, 0.45) 0%, rgba(15, 23, 42, 0.9) 100%);
      z-index: 1;
    }
    .feature-banner-content {
      position: relative;
      z-index: 2;
    }
    .feature-banner-content h3 {
      font-size: 21px;
      font-weight: 700;
      line-height: 1.35;
      color: #ffffff;
      margin: 0;
      text-shadow: 0 2px 4px rgba(0,0,0,0.5);
    }
    .feature-banner-controls {
      position: relative;
      z-index: 2;
      display: flex;
      align-items: center;
      justify-content: space-between;
    }
    .f-control-pagers {
      display: flex;
      align-items: center;
      gap: 12px;
      font-size: 12px;
      font-family: monospace;
      color: #cbd5e1;
    }
    .f-ctrl-btn {
      width: 26px;
      height: 26px;
      border-radius: 50%;
      background: rgba(255,255,255,0.18);
      border: 1px solid rgba(255,255,255,0.3);
      color: #ffffff;
      display: flex;
      align-items: center;
      justify-content: center;
      cursor: pointer;
      font-size: 11px;
    }
    .f-progress-line {
      width: 60px;
      height: 2px;
      background: rgba(255,255,255,0.3);
      position: relative;
    }
    .f-progress-line::after {
      content: '';
      position: absolute;
      left: 0;
      top: 0;
      height: 100%;
      width: 50%;
      background: #ffffff;
    }

    /* News Row List (1:1 with reference) */
    .news-clean-list {
      list-style: none;
      padding: 0;
      margin: 0;
    }
    .news-clean-item {
      padding: 12px 0;
      border-bottom: 1px solid #f1f5f9;
    }
    .news-clean-item:last-child {
      border-bottom: none;
    }
    .news-clean-title {
      font-size: 14px;
      font-weight: 600;
      color: #1e293b;
      margin-bottom: 6px;
      line-height: 1.4;
      display: block;
      text-decoration: none;
      transition: color 0.2s;
    }
    .news-clean-title:hover {
      color: var(--primary-blue);
    }
    .news-clean-meta {
      display: flex;
      align-items: center;
      justify-content: space-between;
      font-size: 12px;
      color: #94a3b8;
    }
    .more-link-row {
      display: flex;
      align-items: center;
      gap: 6px;
      font-size: 13px;
      font-weight: 600;
      color: #334155;
      text-decoration: none;
      padding-top: 14px;
      border-top: 1px solid #f1f5f9;
      margin-top: 10px;
    }
    .more-link-row:hover {
      color: var(--primary-blue);
    }

    /* Risk Controls Table */
    .risk-table-wrap {
      background: #ffffff;
      border: 1px solid #e2e8f0;
      border-radius: 4px;
      overflow: hidden;
      margin-top: 12px;
    }
    .table-risk {
      width: 100%;
      margin: 0;
      border-collapse: collapse;
    }
    .table-risk th {
      background: #f8fafc;
      font-size: 13px;
      font-weight: 700;
      color: #334155;
      padding: 12px 16px;
      border-bottom: 1px solid #e2e8f0;
    }
    .table-risk td {
      padding: 14px 16px;
      font-size: 13px;
      color: #475569;
      border-bottom: 1px solid #f1f5f9;
    }
    .table-risk tr:last-child td {
      border-bottom: none;
    }
    .risk-badge-green {
      background: #dcfce7;
      color: #15803d;
      padding: 3px 8px;
      border-radius: 4px;
      font-size: 12px;
      font-weight: 600;
    }
    .risk-badge-yellow {
      background: #fef9c3;
      color: #a16207;
      padding: 3px 8px;
      border-radius: 4px;
      font-size: 12px;
      font-weight: 600;
    }
    .risk-badge-red {
      background: #fee2e2;
      color: #b91c1c;
      padding: 3px 8px;
      border-radius: 4px;
      font-size: 12px;
      font-weight: 600;
    }

    /* FAQ Section */
    .faq-container-box {
      border: 1px solid #e2e8f0;
      border-radius: 6px;
      background: #ffffff;
      padding: 24px;
    }
    .faq-unit {
      border-bottom: 1px solid #f1f5f9;
      padding: 16px 0;
    }
    .faq-unit:last-child {
      border-bottom: none;
      padding-bottom: 0;
    }
    .faq-unit:first-child {
      padding-top: 0;
    }
    .faq-q {
      font-size: 15px;
      font-weight: 700;
      color: #0f172a;
      margin-bottom: 8px;
      display: flex;
      align-items: center;
      gap: 8px;
    }
    .faq-q i {
      color: var(--primary-blue);
      font-size: 16px;
    }
    .faq-a {
      font-size: 13px;
      color: #475569;
      line-height: 1.65;
      margin: 0;
      padding-left: 24px;
    }

    /* Footer */
    .site-footer {
      background: #0f172a;
      color: #94a3b8;
      padding: 48px 0 24px;
      margin-top: 48px;
      border-top: 1px solid rgba(255,255,255,0.08);
    }
    .site-footer .brand-icon-box {
      background: var(--primary-blue);
      color: #ffffff;
    }
    .site-footer .brand-text-wrap h4 {
      color: #f8fafc;
    }
    .footer-brand-summary {
      font-size: 13px;
      line-height: 1.7;
      color: #94a3b8;
      max-width: 480px;
      margin-top: 14px;
    }
    .footer-nav-col h4 {
      font-size: 15px;
      font-weight: 700;
      color: #ffffff;
      margin-bottom: 16px;
      border-bottom: 1px solid rgba(255,255,255,0.1);
      padding-bottom: 8px;
    }
    .footer-nav-list {
      list-style: none;
      padding: 0;
      margin: 0;
    }
    .footer-nav-list li {
      margin-bottom: 8px;
    }
    .footer-nav-list li a {
      font-size: 13px;
      color: #94a3b8;
      transition: color 0.2s;
    }
    .footer-nav-list li a:hover {
      color: #ffffff;
    }
    .footer-bottom-bar {
      border-top: 1px solid rgba(255,255,255,0.08);
      margin-top: 40px;
      padding-top: 20px;
      font-size: 12px;
      color: #64748b;
      display: flex;
      justify-content: space-between;
      align-items: center;
      flex-wrap: wrap;
      gap: 12px;
    }

    /* Responsive / Mobile */
    @media (max-width: 1024px) {
      .portal-quick-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .portal-cell:nth-child(2) {
        border-right: none;
      }
      .portal-cell:nth-child(1),
      .portal-cell:nth-child(2) {
        border-bottom: 1px solid #e2e8f0;
      }
      .cat-hero-kpis {
        margin-top: 24px;
      }
    }
    @media (max-width: 768px) {
      .header-search-bar {
        margin-top: 12px;
        max-width: 100%;
      }
      .nav-links-wrap {
        gap: 16px;
        overflow-x: auto;
        white-space: nowrap;
        padding-bottom: 4px;
      }
      .portal-quick-grid {
        grid-template-columns: 1fr;
      }
      .portal-cell {
        border-right: none !important;
        border-bottom: 1px solid #e2e8f0;
      }
      .portal-cell:last-child {
        border-bottom: none;
      }
      .desk-header-section .d-flex {
        flex-direction: column;
        align-items: flex-start !important;
        gap: 10px;
      }
      .desk-main-title {
        margin: 6px 0;
      }
      .footer-bottom-bar {
        flex-direction: column;
        align-items: flex-start;
      }
    }
    @media (max-width: 520px) {
      .cat-hero-title {
        font-size: 24px;
      }
      .ratio-param {
        font-size: 24px;
      }
      .feature-banner-card {
        height: 220px;
        padding: 16px;
      }
      .feature-banner-content h3 {
        font-size: 18px;
      }
    }