/* roulang page: index */
:root {
            --brand-primary: #1e50a2;
            --brand-dark: #0f254e;
            --brand-accent: #2563eb;
            --brand-muted: #64748b;
            --brand-light: #f8fafc;
            --brand-border: #e2e8f0;
            --brand-card-bg: #ffffff;
            --brand-text-main: #1e293b;
        }

        body {
            background-color: #f1f5f9;
            color: var(--brand-text-main);
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
            line-height: 1.6;
            margin: 0;
            padding: 0;
        }

        a {
            text-decoration: none;
            color: inherit;
            transition: all 0.25s ease;
        }

        /* 顶部通栏条 */
        .top-notice-bar {
            background-color: #0d2346;
            color: #94a3b8;
            font-size: 12px;
            padding: 6px 0;
        }

        /* 统一头部与导航栏 */
        .main-header {
            background-color: #ffffff;
            border-bottom: 1px solid var(--brand-border);
        }

        .header-brand-row {
            padding: 16px 0;
            border-bottom: 1px solid #f1f5f9;
        }

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

        .brand-logo-icon {
            width: 40px;
            height: 40px;
            background: linear-gradient(135deg, #1d4ed8, #0f254e);
            border-radius: 8px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #ffffff;
            font-size: 20px;
            font-weight: 700;
        }

        .brand-name {
            font-size: 22px;
            font-weight: 800;
            color: var(--brand-dark);
            letter-spacing: -0.5px;
            line-height: 1.2;
        }

        .brand-slogan {
            font-size: 11px;
            color: #64748b;
            letter-spacing: 1.5px;
            text-transform: uppercase;
        }

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

        .header-search-box input {
            background-color: #f8fafc;
            border: 1px solid var(--brand-border);
            border-radius: 6px;
            padding: 8px 36px 8px 36px;
            font-size: 13px;
            width: 100%;
            outline: none;
            transition: border-color 0.2s;
        }

        .header-search-box input:focus {
            border-color: var(--brand-accent);
            background-color: #ffffff;
        }

        .header-search-box .bi-search {
            position: absolute;
            left: 12px;
            top: 50%;
            transform: translateY(-50%);
            color: #94a3b8;
            font-size: 14px;
        }

        .header-search-box .bi-arrow-up-right {
            position: absolute;
            right: 12px;
            top: 50%;
            transform: translateY(-50%);
            color: #94a3b8;
            font-size: 13px;
        }

        /* 主菜单导航 */
        .primary-nav {
            display: flex;
            align-items: center;
            justify-content: space-between;
        }

        .primary-nav ul {
            list-style: none;
            margin: 0;
            padding: 0;
            display: flex;
            gap: 28px;
        }

        .primary-nav li a {
            display: inline-block;
            padding: 14px 0;
            font-size: 14px;
            font-weight: 500;
            color: #334155;
            position: relative;
        }

        .primary-nav li a:hover,
        .primary-nav li a.active {
            color: var(--brand-accent);
            font-weight: 600;
        }

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

        .nav-right-link {
            font-size: 13px;
            color: #64748b;
        }

        .nav-right-link:hover {
            color: var(--brand-accent);
        }

        /* 页面主体容器 */
        .site-main-content {
            padding: 24px 0 48px;
        }

        /* 顶部横幅条 / 栏目推荐卡片 */
        .hub-quick-bar {
            background-color: #ffffff;
            border: 1px solid var(--brand-border);
            border-radius: 4px;
            margin-bottom: 24px;
            display: flex;
            flex-wrap: wrap;
        }

        .hub-title-cell {
            background-color: #0f254e;
            color: #ffffff;
            padding: 18px 24px;
            display: flex;
            flex-direction: column;
            justify-content: center;
            min-width: 170px;
        }

        .hub-title-cell h1 {
            font-size: 15px;
            font-weight: 700;
            margin: 0;
            letter-spacing: 0.5px;
        }

        .hub-title-cell span {
            font-size: 11px;
            color: #94a3b8;
            margin-top: 2px;
        }

        .hub-nav-items {
            display: flex;
            flex: 1;
            align-items: stretch;
        }

        .hub-item {
            flex: 1;
            padding: 16px 20px;
            border-right: 1px solid var(--brand-border);
            display: flex;
            align-items: center;
            justify-content: space-between;
            color: #1e293b;
        }

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

        .hub-item-info {
            display: flex;
            flex-direction: column;
        }

        .hub-item-num {
            font-size: 11px;
            font-weight: 700;
            color: #94a3b8;
        }

        .hub-item-title {
            font-size: 14px;
            font-weight: 600;
            margin-top: 2px;
        }

        .hub-item-desc {
            font-size: 12px;
            color: #64748b;
        }

        .hub-item-btn {
            background-color: var(--brand-primary);
            color: #ffffff;
            padding: 16px 24px;
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            font-size: 14px;
            font-weight: 600;
            min-width: 120px;
        }

        .hub-item-btn:hover {
            background-color: #173f82;
            color: #ffffff;
        }

        /* 证券专栏双列板 */
        .section-panel {
            background-color: #ffffff;
            border: 1px solid var(--brand-border);
            border-radius: 4px;
            padding: 24px;
            height: 100%;
        }

        .panel-heading {
            display: flex;
            align-items: center;
            justify-content: space-between;
            border-bottom: 2px solid #0f254e;
            padding-bottom: 12px;
            margin-bottom: 20px;
        }

        .panel-title-wrap {
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .panel-indicator {
            width: 4px;
            height: 18px;
            background-color: var(--brand-accent);
        }

        .panel-title {
            font-size: 18px;
            font-weight: 700;
            color: var(--brand-dark);
            margin: 0;
        }

        .panel-subtext {
            font-size: 12px;
            color: #64748b;
            margin-bottom: 16px;
        }

        /* 焦点大图卡片 */
        .feature-hero-card {
            position: relative;
            height: 220px;
            border-radius: 4px;
            overflow: hidden;
            margin-bottom: 20px;
            background-color: #0b192c;
            display: block;
        }

        .feature-hero-card img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            filter: brightness(0.65);
            transition: transform 0.4s ease;
        }

        .feature-hero-card:hover img {
            transform: scale(1.03);
        }

        .feature-overlay {
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            padding: 20px;
            background: linear-gradient(to top, rgba(15, 23, 42, 0.95), rgba(15, 23, 42, 0));
            color: #ffffff;
        }

        .feature-overlay h3 {
            font-size: 18px;
            font-weight: 700;
            margin: 0 0 10px 0;
            line-height: 1.4;
            color: #ffffff;
        }

        .feature-controls {
            display: flex;
            align-items: center;
            gap: 12px;
            font-size: 11px;
            color: #cbd5e1;
        }

        .feature-nav-btn {
            border: 1px solid rgba(255,255,255,0.4);
            border-radius: 50%;
            width: 22px;
            height: 22px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            cursor: pointer;
        }

        /* 紧凑新闻列表 */
        .panel-news-list {
            list-style: none;
            padding: 0;
            margin: 0;
        }

        .panel-news-item {
            padding: 12px 0;
            border-bottom: 1px solid #f1f5f9;
        }

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

        .panel-news-title {
            font-size: 14px;
            font-weight: 500;
            color: #1e293b;
            margin-bottom: 4px;
            display: -webkit-box;
            -webkit-line-clamp: 1;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .panel-news-title:hover {
            color: var(--brand-accent);
        }

        .panel-news-meta {
            display: flex;
            justify-content: space-between;
            font-size: 12px;
            color: #94a3b8;
        }

        .panel-more-link {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding-top: 16px;
            border-top: 1px solid #e2e8f0;
            font-size: 13px;
            font-weight: 600;
            color: #334155;
            margin-top: 12px;
        }

        .panel-more-link:hover {
            color: var(--brand-accent);
        }

        /* 底部权威公报/研究矩阵 */
        .bottom-board-section {
            background-color: #ffffff;
            border: 1px solid var(--brand-border);
            border-radius: 4px;
            padding: 24px;
            margin-top: 24px;
        }

        .board-card-title {
            font-size: 16px;
            font-weight: 700;
            color: var(--brand-dark);
            margin-bottom: 16px;
            display: flex;
            align-items: center;
            justify-content: space-between;
        }

        .board-tag {
            background-color: #eff6ff;
            color: #1d4ed8;
            font-size: 11px;
            padding: 2px 6px;
            border-radius: 3px;
            font-weight: 500;
        }

        /* 统一页脚 */
        .site-footer {
            background-color: #ffffff;
            border-top: 1px solid var(--brand-border);
            padding: 40px 0 24px;
            color: #475569;
        }

        .footer-brand-title {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 18px;
            font-weight: 800;
            color: var(--brand-dark);
            margin-bottom: 12px;
        }

        .footer-desc {
            font-size: 13px;
            color: #64748b;
            max-width: 320px;
            line-height: 1.6;
        }

        .footer-column-title {
            font-size: 13px;
            font-weight: 700;
            color: #1e293b;
            margin-bottom: 14px;
        }

        .footer-links {
            list-style: none;
            padding: 0;
            margin: 0;
        }

        .footer-links li {
            margin-bottom: 8px;
        }

        .footer-links a {
            font-size: 13px;
            color: #64748b;
        }

        .footer-links a:hover {
            color: var(--brand-accent);
        }

        .footer-bottom-notice {
            margin-top: 36px;
            padding-top: 20px;
            border-top: 1px solid #f1f5f9;
            font-size: 12px;
            color: #94a3b8;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 12px;
        }

        /* 移动端与平板响应式适配 */
        @media (max-width: 1024px) {
            .hub-nav-items {
                flex-wrap: wrap;
            }
            .hub-item {
                flex: 0 0 50%;
                border-bottom: 1px solid var(--brand-border);
            }
        }

        @media (max-width: 768px) {
            .header-search-box {
                margin-top: 12px;
                max-width: 100%;
            }
            .hub-quick-bar {
                flex-direction: column;
            }
            .hub-title-cell {
                min-width: 100%;
            }
            .hub-item {
                flex: 0 0 100%;
                border-right: none;
            }
            .hub-item-btn {
                width: 100%;
            }
            .primary-nav {
                overflow-x: auto;
                white-space: nowrap;
                padding-bottom: 4px;
            }
            .primary-nav ul {
                gap: 18px;
            }
            .feature-hero-card {
                height: 180px;
            }
            .footer-bottom-notice {
                flex-direction: column;
                align-items: flex-start;
            }
        }

        @media (max-width: 520px) {
            .panel-heading {
                flex-direction: column;
                align-items: flex-start;
                gap: 8px;
            }
            .feature-hero-card {
                height: 160px;
            }
            .feature-overlay h3 {
                font-size: 15px;
            }
        }

/* roulang page: category1 */
:root {
      --brand-primary: #1e50a2;
      --brand-dark: #0f254e;
      --brand-accent: #2563eb;
      --brand-muted: #64748b;
      --brand-light: #f8fafc;
      --brand-border: #e2e8f0;
      --brand-card-bg: #ffffff;
      --brand-text-main: #1e293b;
    }
    body {
      background-color: #f1f5f9;
      color: var(--brand-text-main);
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
      line-height: 1.6;
      margin: 0;
      padding: 0;
    }
    a {
      text-decoration: none;
      color: inherit;
      transition: all 0.25s ease;
    }
    .top-sub-bar {
      background-color: #0b1a36;
      color: #94a3b8;
      font-size: 12px;
      padding: 6px 0;
      border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    }
    .main-header {
      background-color: #ffffff;
      border-bottom: 1px solid var(--brand-border);
    }
    .header-brand-row {
      padding: 16px 0;
      border-bottom: 1px solid #f1f5f9;
    }
    .brand-logo-wrap {
      display: flex;
      align-items: center;
      gap: 12px;
    }
    .brand-logo-icon {
      width: 40px;
      height: 40px;
      background: linear-gradient(135deg, #1d4ed8, #0f254e);
      border-radius: 8px;
      display: flex;
      align-items: center;
      justify-content: center;
      color: #ffffff;
      font-size: 20px;
      font-weight: 700;
    }
    .brand-name {
      font-size: 22px;
      font-weight: 800;
      color: var(--brand-dark);
      letter-spacing: -0.5px;
      line-height: 1.2;
    }
    .brand-slogan {
      font-size: 11px;
      color: #64748b;
      letter-spacing: 1.5px;
      text-transform: uppercase;
    }
    .header-search-box {
      position: relative;
      max-width: 380px;
      width: 100%;
    }
    .header-search-box input {
      background-color: #f8fafc;
      border: 1px solid var(--brand-border);
      border-radius: 6px;
      padding: 8px 36px;
      font-size: 13px;
      width: 100%;
      outline: none;
      transition: border-color 0.2s;
    }
    .header-search-box input:focus {
      border-color: var(--brand-accent);
      background-color: #ffffff;
    }
    .header-search-box .bi-search {
      position: absolute;
      left: 12px;
      top: 50%;
      transform: translateY(-50%);
      color: #94a3b8;
      font-size: 14px;
    }
    .header-search-box .bi-arrow-up-right {
      position: absolute;
      right: 12px;
      top: 50%;
      transform: translateY(-50%);
      color: #94a3b8;
      font-size: 13px;
    }
    .primary-nav {
      display: flex;
      align-items: center;
      justify-content: space-between;
    }
    .primary-nav ul {
      list-style: none;
      margin: 0;
      padding: 0;
      display: flex;
      gap: 28px;
    }
    .primary-nav li a {
      display: inline-block;
      padding: 14px 0;
      font-size: 14px;
      font-weight: 500;
      color: #334155;
      position: relative;
    }
    .primary-nav li a:hover,
    .primary-nav li a.active {
      color: var(--brand-accent);
      font-weight: 600;
    }
    .primary-nav li a.active::after {
      content: '';
      position: absolute;
      bottom: 0;
      left: 0;
      width: 100%;
      height: 2px;
      background-color: var(--brand-accent);
    }
    .nav-right-link {
      font-size: 13px;
      color: #64748b;
    }
    .nav-right-link:hover {
      color: var(--brand-accent);
    }
    .site-main-content {
      padding: 24px 0 54px;
    }
    .category-top-banner {
      background: linear-gradient(135deg, #0b1a36 0%, #1e50a2 100%);
      border-radius: 6px;
      color: #ffffff;
      padding: 32px 36px;
      margin-bottom: 24px;
      position: relative;
      overflow: hidden;
      box-shadow: 0 4px 14px rgba(15, 37, 78, 0.08);
    }
    .category-top-banner::after {
      content: '';
      position: absolute;
      right: -20px;
      bottom: -40px;
      width: 220px;
      height: 220px;
      background: radial-gradient(circle, rgba(255,255,255,0.08) 0%, rgba(255,255,255,0) 70%);
      pointer-events: none;
    }
    .category-top-badge {
      display: inline-block;
      background-color: rgba(255, 255, 255, 0.15);
      font-size: 12px;
      letter-spacing: 1px;
      padding: 3px 10px;
      border-radius: 4px;
      margin-bottom: 12px;
      text-transform: uppercase;
    }
    .category-top-banner h1 {
      font-size: 26px;
      font-weight: 800;
      margin: 0 0 10px;
      letter-spacing: -0.5px;
    }
    .category-top-banner p {
      font-size: 14px;
      color: #cbd5e1;
      max-width: 820px;
      margin: 0;
      line-height: 1.7;
    }
    .hub-category-strip {
      background: #ffffff;
      border: 1px solid var(--brand-border);
      border-radius: 6px;
      display: flex;
      flex-wrap: wrap;
      align-items: stretch;
      margin-bottom: 24px;
      overflow: hidden;
    }
    .hub-title-cell {
      background-color: #0f254e;
      color: #ffffff;
      padding: 18px 24px;
      display: flex;
      flex-direction: column;
      justify-content: center;
      min-width: 170px;
    }
    .hub-title-cell h2 {
      font-size: 15px;
      font-weight: 700;
      margin: 0;
      letter-spacing: 0.5px;
    }
    .hub-title-cell span {
      font-size: 11px;
      color: #94a3b8;
      margin-top: 2px;
    }
    .hub-nav-items {
      display: flex;
      flex: 1;
      align-items: stretch;
    }
    .hub-item {
      flex: 1;
      padding: 16px 20px;
      border-right: 1px solid var(--brand-border);
      display: flex;
      align-items: center;
      justify-content: space-between;
      color: #1e293b;
    }
    .hub-item:hover {
      background-color: #f8fafc;
    }
    .hub-item-info {
      display: flex;
      flex-direction: column;
    }
    .hub-item-num {
      font-size: 11px;
      font-weight: 700;
      color: #94a3b8;
    }
    .hub-item-title {
      font-size: 14px;
      font-weight: 600;
      margin-top: 2px;
    }
    .hub-item-desc {
      font-size: 12px;
      color: #64748b;
    }
    .hub-item-btn {
      background-color: var(--brand-primary);
      color: #ffffff;
      padding: 16px 24px;
      display: flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      font-size: 14px;
      font-weight: 600;
      min-width: 120px;
    }
    .hub-item-btn:hover {
      background-color: #173f82;
      color: #ffffff;
    }
    .section-panel {
      background-color: #ffffff;
      border: 1px solid var(--brand-border);
      border-radius: 6px;
      padding: 24px;
      height: 100%;
    }
    .panel-heading {
      display: flex;
      align-items: center;
      justify-content: space-between;
      border-bottom: 2px solid #0f254e;
      padding-bottom: 12px;
      margin-bottom: 20px;
    }
    .panel-title-wrap {
      display: flex;
      align-items: center;
      gap: 8px;
    }
    .panel-decor-bar {
      width: 4px;
      height: 18px;
      background-color: var(--brand-primary);
      border-radius: 2px;
    }
    .panel-title {
      font-size: 18px;
      font-weight: 700;
      color: var(--brand-dark);
      margin: 0;
    }
    .panel-sub-label {
      font-size: 12px;
      color: #64748b;
      margin-top: 4px;
    }
    .feature-hero-card {
      position: relative;
      height: 220px;
      border-radius: 4px;
      overflow: hidden;
      margin-bottom: 20px;
      display: flex;
      align-items: flex-end;
      padding: 20px;
      color: #ffffff;
    }
    .feature-hero-card img {
      position: absolute;
      top: 0;
      left: 0;
      width: 100%;
      height: 100%;
      object-fit: cover;
      z-index: 1;
      transition: transform 0.4s ease;
    }
    .feature-hero-card:hover img {
      transform: scale(1.04);
    }
    .feature-hero-mask {
      position: absolute;
      top: 0;
      left: 0;
      width: 100%;
      height: 100%;
      background: linear-gradient(180deg, rgba(15, 37, 78, 0.2) 0%, rgba(11, 26, 54, 0.88) 100%);
      z-index: 2;
    }
    .feature-hero-content {
      position: relative;
      z-index: 3;
      width: 100%;
    }
    .feature-hero-title {
      font-size: 18px;
      font-weight: 700;
      line-height: 1.4;
      margin-bottom: 8px;
      color: #ffffff;
    }
    .feature-meta-ctrl {
      display: flex;
      align-items: center;
      justify-content: space-between;
      font-size: 12px;
      color: #cbd5e1;
    }
    .news-list {
      list-style: none;
      padding: 0;
      margin: 0;
    }
    .news-item {
      padding: 12px 0;
      border-bottom: 1px solid #f1f5f9;
      display: flex;
      justify-content: space-between;
      align-items: baseline;
      gap: 16px;
    }
    .news-item:last-child {
      border-bottom: none;
    }
    .news-item-left {
      flex: 1;
      overflow: hidden;
    }
    .news-item-title {
      font-size: 14px;
      color: #1e293b;
      display: block;
      white-space: nowrap;
      overflow: hidden;
      text-overflow: ellipsis;
    }
    .news-item-title:hover {
      color: var(--brand-accent);
    }
    .news-item-source {
      font-size: 12px;
      color: #94a3b8;
      margin-top: 3px;
    }
    .news-item-date {
      font-size: 12px;
      color: #94a3b8;
      font-variant-numeric: tabular-nums;
      white-space: nowrap;
    }
    .panel-footer-btn {
      display: flex;
      align-items: center;
      justify-content: space-between;
      padding: 12px 0 0;
      font-size: 13px;
      font-weight: 600;
      color: var(--brand-primary);
      border-top: 1px solid #f1f5f9;
      margin-top: 12px;
    }
    .panel-footer-btn:hover {
      color: var(--brand-dark);
    }
    .service-pillars {
      margin-top: 24px;
      background: #ffffff;
      border: 1px solid var(--brand-border);
      border-radius: 6px;
      padding: 24px;
    }
    .pillar-box {
      border: 1px solid #e2e8f0;
      border-radius: 6px;
      padding: 20px;
      background-color: #f8fafc;
      height: 100%;
      transition: border-color 0.2s, transform 0.2s;
    }
    .pillar-box:hover {
      border-color: var(--brand-primary);
      transform: translateY(-2px);
    }
    .pillar-icon {
      width: 36px;
      height: 36px;
      border-radius: 6px;
      background-color: #e0e7ff;
      color: var(--brand-primary);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 18px;
      margin-bottom: 12px;
    }
    .pillar-title {
      font-size: 15px;
      font-weight: 700;
      color: var(--brand-dark);
      margin-bottom: 6px;
    }
    .pillar-desc {
      font-size: 13px;
      color: #64748b;
      margin: 0;
      line-height: 1.6;
    }
    .site-footer {
      background-color: #ffffff;
      border-top: 1px solid var(--brand-border);
      padding: 40px 0 20px;
      margin-top: 40px;
    }
    .footer-brand-title {
      display: flex;
      align-items: center;
      gap: 8px;
      font-size: 18px;
      font-weight: 800;
      color: var(--brand-dark);
      margin-bottom: 12px;
    }
    .footer-desc {
      font-size: 13px;
      color: #64748b;
      line-height: 1.7;
    }
    .footer-column-title {
      font-size: 14px;
      font-weight: 700;
      color: #0f254e;
      margin-bottom: 14px;
    }
    .footer-links {
      list-style: none;
      padding: 0;
      margin: 0;
    }
    .footer-links li {
      margin-bottom: 8px;
    }
    .footer-links a {
      font-size: 13px;
      color: #64748b;
    }
    .footer-links a:hover {
      color: var(--brand-accent);
    }
    .footer-bottom-notice {
      border-top: 1px solid #f1f5f9;
      margin-top: 32px;
      padding-top: 20px;
      display: flex;
      flex-wrap: wrap;
      justify-content: space-between;
      gap: 12px;
      font-size: 12px;
      color: #94a3b8;
    }
    @media (max-width: 1024px) {
      .hub-nav-items {
        flex-wrap: wrap;
      }
      .hub-item {
        min-width: 50%;
        border-bottom: 1px solid var(--brand-border);
      }
      .hub-item:nth-child(2) {
        border-right: none;
      }
    }
    @media (max-width: 768px) {
      .primary-nav {
        flex-direction: column;
        align-items: flex-start;
        padding: 10px 0;
      }
      .primary-nav ul {
        flex-wrap: wrap;
        gap: 16px;
      }
      .primary-nav li a {
        padding: 6px 0;
      }
      .nav-right-link {
        margin-top: 8px;
      }
      .hub-category-strip {
        flex-direction: column;
      }
      .hub-title-cell {
        width: 100%;
      }
      .hub-item {
        width: 100%;
        border-right: none;
      }
      .hub-item-btn {
        width: 100%;
      }
      .category-top-banner {
        padding: 24px 20px;
      }
      .category-top-banner h1 {
        font-size: 20px;
      }
      .feature-hero-card {
        height: 180px;
      }
    }
    @media (max-width: 520px) {
      .news-item {
        flex-direction: column;
        align-items: flex-start;
        gap: 4px;
      }
      .news-item-date {
        align-self: flex-start;
      }
      .footer-bottom-notice {
        flex-direction: column;
      }
    }

/* roulang page: article */
:root {
      --brand-primary: #1e50a2;
      --brand-dark: #0f254e;
      --brand-accent: #2563eb;
      --brand-muted: #64748b;
      --brand-light: #f8fafc;
      --brand-border: #e2e8f0;
      --brand-card-bg: #ffffff;
      --brand-text-main: #1e293b;
    }
    body {
      background-color: #f1f5f9;
      color: var(--brand-text-main);
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
      line-height: 1.6;
      margin: 0;
      padding: 0;
    }
    a {
      text-decoration: none;
      color: inherit;
      transition: all 0.25s ease;
    }
    .main-header {
      background-color: #ffffff;
      border-bottom: 1px solid var(--brand-border);
    }
    .header-brand-row {
      padding: 16px 0;
      border-bottom: 1px solid #f1f5f9;
    }
    .brand-logo-wrap {
      display: flex;
      align-items: center;
      gap: 12px;
    }
    .brand-logo-icon {
      width: 40px;
      height: 40px;
      background: linear-gradient(135deg, #1d4ed8, #0f254e);
      border-radius: 8px;
      display: flex;
      align-items: center;
      justify-content: center;
      color: #ffffff;
      font-size: 20px;
      font-weight: 700;
    }
    .brand-name {
      font-size: 22px;
      font-weight: 800;
      color: var(--brand-dark);
      letter-spacing: -0.5px;
      line-height: 1.2;
    }
    .brand-slogan {
      font-size: 11px;
      color: #64748b;
      letter-spacing: 1.5px;
      text-transform: uppercase;
    }
    .header-search-box {
      position: relative;
      max-width: 380px;
      width: 100%;
    }
    .header-search-box input {
      background-color: #f8fafc;
      border: 1px solid var(--brand-border);
      border-radius: 6px;
      padding: 8px 36px 8px 36px;
      font-size: 13px;
      width: 100%;
      outline: none;
      transition: border-color 0.2s;
    }
    .header-search-box input:focus {
      border-color: var(--brand-accent);
      background-color: #ffffff;
    }
    .header-search-box .bi-search {
      position: absolute;
      left: 12px;
      top: 50%;
      transform: translateY(-50%);
      color: #94a3b8;
      font-size: 14px;
    }
    .header-search-box .bi-arrow-up-right {
      position: absolute;
      right: 12px;
      top: 50%;
      transform: translateY(-50%);
      color: #94a3b8;
      font-size: 13px;
    }
    .primary-nav {
      display: flex;
      align-items: center;
      justify-content: space-between;
    }
    .primary-nav ul {
      list-style: none;
      margin: 0;
      padding: 0;
      display: flex;
      gap: 28px;
    }
    .primary-nav li a {
      display: inline-block;
      padding: 14px 0;
      font-size: 14px;
      font-weight: 500;
      color: #334155;
      position: relative;
    }
    .primary-nav li a:hover,
    .primary-nav li a.active {
      color: var(--brand-accent);
      font-weight: 600;
    }
    .primary-nav li a.active::after {
      content: '';
      position: absolute;
      bottom: 0;
      left: 0;
      width: 100%;
      height: 2px;
      background-color: var(--brand-accent);
    }
    .nav-right-link {
      font-size: 13px;
      color: #64748b;
    }
    .nav-right-link:hover {
      color: var(--brand-accent);
    }
    .site-main-content {
      padding: 24px 0 48px;
    }
    .article-breadcrumb {
      font-size: 13px;
      color: var(--brand-muted);
      margin-bottom: 20px;
    }
    .article-breadcrumb a:hover {
      color: var(--brand-accent);
    }
    .article-card {
      background-color: #ffffff;
      border: 1px solid var(--brand-border);
      border-radius: 6px;
      padding: 36px 40px;
    }
    .article-header {
      border-bottom: 1px solid var(--brand-border);
      padding-bottom: 24px;
      margin-bottom: 28px;
    }
    .article-category-badge {
      display: inline-block;
      padding: 4px 10px;
      background-color: #eff6ff;
      color: var(--brand-accent);
      font-size: 12px;
      font-weight: 600;
      border-radius: 4px;
      margin-bottom: 14px;
    }
    .article-title {
      font-size: 28px;
      font-weight: 800;
      color: var(--brand-dark);
      line-height: 1.4;
      margin-bottom: 16px;
    }
    .article-meta {
      display: flex;
      flex-wrap: wrap;
      gap: 20px;
      font-size: 13px;
      color: var(--brand-muted);
    }
    .article-meta span {
      display: flex;
      align-items: center;
      gap: 6px;
    }
    .article-banner-wrap {
      margin-bottom: 28px;
      border-radius: 6px;
      overflow: hidden;
      border: 1px solid var(--brand-border);
    }
    .article-banner-wrap img {
      width: 100%;
      height: auto;
      max-height: 380px;
      object-fit: cover;
      display: block;
    }
    .article-body {
      font-size: 16px;
      line-height: 1.85;
      color: #334155;
    }
    .article-body p {
      margin-bottom: 1.4em;
    }
    .article-body h2,
    .article-body h3 {
      color: var(--brand-dark);
      font-weight: 700;
      margin-top: 1.6em;
      margin-bottom: 0.8em;
    }
    .article-body ul,
    .article-body ol {
      margin-bottom: 1.4em;
      padding-left: 1.6em;
    }
    .article-body li {
      margin-bottom: 0.4em;
    }
    .article-not-found {
      text-align: center;
      padding: 60px 20px;
    }
    .article-not-found h2 {
      font-size: 22px;
      font-weight: 700;
      color: var(--brand-dark);
      margin-bottom: 12px;
    }
    .article-not-found p {
      font-size: 14px;
      color: var(--brand-muted);
      margin-bottom: 24px;
    }
    .btn-back-home {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      background-color: var(--brand-primary);
      color: #ffffff;
      padding: 10px 20px;
      border-radius: 4px;
      font-size: 14px;
      font-weight: 600;
    }
    .btn-back-home:hover {
      background-color: #173f82;
      color: #ffffff;
    }
    .side-widget {
      background-color: #ffffff;
      border: 1px solid var(--brand-border);
      border-radius: 6px;
      padding: 24px;
      margin-bottom: 24px;
    }
    .side-widget-title {
      font-size: 16px;
      font-weight: 700;
      color: var(--brand-dark);
      padding-bottom: 12px;
      border-bottom: 2px solid #0f254e;
      margin-bottom: 16px;
      display: flex;
      justify-content: space-between;
      align-items: center;
    }
    .side-post-list {
      list-style: none;
      padding: 0;
      margin: 0;
    }
    .side-post-item {
      padding: 10px 0;
      border-bottom: 1px dashed var(--brand-border);
    }
    .side-post-item:last-child {
      border-bottom: none;
      padding-bottom: 0;
    }
    .side-post-link {
      font-size: 14px;
      color: #1e293b;
      display: -webkit-box;
      -webkit-line-clamp: 2;
      -webkit-box-orient: vertical;
      overflow: hidden;
      line-height: 1.5;
    }
    .side-post-link:hover {
      color: var(--brand-accent);
    }
    .side-post-date {
      font-size: 12px;
      color: var(--brand-muted);
      margin-top: 4px;
    }
    .side-banner-card {
      position: relative;
      border-radius: 6px;
      overflow: hidden;
      margin-bottom: 24px;
      border: 1px solid var(--brand-border);
    }
    .side-banner-card img {
      width: 100%;
      height: 180px;
      object-fit: cover;
      display: block;
    }
    .side-banner-overlay {
      position: absolute;
      inset: 0;
      background: linear-gradient(180deg, rgba(15,37,78,0.2) 0%, rgba(15,37,78,0.85) 100%);
      padding: 20px;
      display: flex;
      flex-direction: column;
      justify-content: flex-end;
      color: #ffffff;
    }
    .side-banner-title {
      font-size: 15px;
      font-weight: 700;
      margin-bottom: 6px;
    }
    .side-banner-text {
      font-size: 12px;
      color: #cbd5e1;
      line-height: 1.4;
    }
    .site-footer {
      background-color: #ffffff;
      border-top: 1px solid var(--brand-border);
      padding: 48px 0 24px;
      margin-top: 40px;
    }
    .footer-brand-title {
      font-size: 18px;
      font-weight: 800;
      color: var(--brand-dark);
      display: flex;
      align-items: center;
      gap: 8px;
      margin-bottom: 14px;
    }
    .footer-desc {
      font-size: 13px;
      color: var(--brand-muted);
      line-height: 1.7;
    }
    .footer-column-title {
      font-size: 14px;
      font-weight: 700;
      color: var(--brand-dark);
      margin-bottom: 16px;
      letter-spacing: 0.5px;
    }
    .footer-links {
      list-style: none;
      padding: 0;
      margin: 0;
    }
    .footer-links li {
      margin-bottom: 10px;
    }
    .footer-links a {
      font-size: 13px;
      color: var(--brand-muted);
    }
    .footer-links a:hover {
      color: var(--brand-accent);
    }
    .footer-bottom-notice {
      border-top: 1px solid var(--brand-border);
      margin-top: 36px;
      padding-top: 20px;
      display: flex;
      flex-wrap: wrap;
      justify-content: space-between;
      gap: 12px;
      font-size: 12px;
      color: #94a3b8;
    }
    @media (max-width: 1024px) {
      .primary-nav ul {
        gap: 18px;
      }
      .article-card {
        padding: 24px;
      }
    }
    @media (max-width: 768px) {
      .header-brand-row {
        gap: 12px;
      }
      .header-search-box {
        max-width: 100%;
      }
      .primary-nav {
        overflow-x: auto;
        white-space: nowrap;
        padding-bottom: 4px;
      }
      .primary-nav ul {
        gap: 20px;
      }
      .nav-right-link {
        display: none;
      }
      .article-title {
        font-size: 22px;
      }
      .article-card {
        padding: 20px 16px;
      }
      .footer-bottom-notice {
        flex-direction: column;
      }
    }
    @media (max-width: 520px) {
      .brand-name {
        font-size: 18px;
      }
      .article-meta {
        gap: 10px;
      }
    }