/* roulang page: index */
:root {
            --primary: #1e4b8f;
            --primary-dark: #123366;
            --primary-light: #eef4fc;
            --secondary: #0c1e3d;
            --accent: #2563eb;
            --body-bg: #f5f7fa;
            --card-bg: #ffffff;
            --border-color: #e5e9f0;
            --text-dark: #1a2233;
            --text-muted: #64748b;
            --top-banner-bg: #0b1f3a;
        }

        body {
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", "PingFang SC", "Noto Sans CJK SC", "Microsoft YaHei", sans-serif;
            background-color: var(--body-bg);
            color: var(--text-dark);
            line-height: 1.6;
            -webkit-font-smoothing: antialiased;
        }

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

        /* Top Mini Banner */
        .top-strip {
            background-color: var(--top-banner-bg);
            color: #94a3b8;
            font-size: 12px;
            padding: 6px 0;
            border-bottom: 1px solid rgba(255,255,255,0.08);
        }

        /* Site Header */
        .site-header {
            background: #ffffff;
            border-bottom: 1px solid var(--border-color);
            padding: 24px 0 0 0;
        }

        .header-brand {
            display: flex;
            align-items: center;
            gap: 14px;
        }

        .brand-logo-icon {
            width: 44px;
            height: 44px;
            background: linear-gradient(135deg, var(--primary) 0%, #3b82f6 100%);
            color: #ffffff;
            border-radius: 8px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 22px;
            box-shadow: 0 4px 10px rgba(30, 75, 143, 0.25);
        }

        .brand-text h1 {
            font-size: 24px;
            font-weight: 800;
            color: var(--secondary);
            margin: 0;
            letter-spacing: -0.5px;
            line-height: 1.1;
        }

        .brand-text .brand-tagline {
            font-size: 11px;
            text-transform: uppercase;
            color: #64748b;
            letter-spacing: 2px;
            margin-top: 3px;
        }

        .header-motto {
            font-size: 13px;
            color: #64748b;
            border-left: 1px solid var(--border-color);
            padding-left: 18px;
            margin-left: 10px;
        }

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

        .header-search input {
            width: 100%;
            padding: 9px 40px 9px 36px;
            font-size: 13px;
            border: 1px solid #dce2ea;
            border-radius: 6px;
            background-color: #f8fafc;
            color: var(--text-dark);
            outline: none;
        }

        .header-search input:focus {
            background-color: #fff;
            border-color: var(--accent);
            box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.12);
        }

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

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

        /* Main Navigation */
        .site-nav {
            margin-top: 20px;
            border-top: 1px solid #edf2f7;
        }

        .nav-list {
            display: flex;
            align-items: center;
            list-style: none;
            margin: 0;
            padding: 0;
            gap: 28px;
        }

        .nav-link-item {
            display: block;
            padding: 14px 0;
            font-size: 14px;
            font-weight: 500;
            color: #334155;
            position: relative;
        }

        .nav-link-item:hover, .nav-link-item.active {
            color: var(--primary);
            font-weight: 600;
        }

        .nav-link-item.active::after {
            content: '';
            position: absolute;
            bottom: -1px;
            left: 0;
            width: 100%;
            height: 2.5px;
            background-color: var(--primary);
        }

        .nav-link-right {
            margin-left: auto;
            display: flex;
            align-items: center;
            gap: 6px;
            font-size: 13px;
            color: #64748b;
        }

        /* Banner Quick Section */
        .quick-desk {
            background: #ffffff;
            border: 1px solid var(--border-color);
            border-radius: 6px;
            margin-top: 24px;
            padding: 0;
            box-shadow: 0 2px 8px rgba(0, 0, 0, 0.03);
            display: grid;
            grid-template-columns: 240px 1fr 1fr 120px;
            align-items: stretch;
            overflow: hidden;
        }

        .quick-desk-intro {
            background: #11284a;
            color: #ffffff;
            padding: 24px 20px;
            display: flex;
            flex-direction: column;
            justify-content: center;
        }

        .quick-desk-intro .desk-tag {
            display: inline-block;
            background: rgba(255, 255, 255, 0.12);
            font-size: 11px;
            padding: 3px 8px;
            border-radius: 4px;
            margin-bottom: 8px;
            width: fit-content;
            letter-spacing: 1px;
        }

        .quick-desk-intro h2 {
            font-size: 18px;
            font-weight: 700;
            margin: 0;
            line-height: 1.3;
        }

        .quick-desk-item {
            padding: 20px 24px;
            border-left: 1px solid var(--border-color);
            display: flex;
            flex-direction: column;
            justify-content: center;
            position: relative;
            background-color: #fff;
            transition: background-color 0.2s ease;
        }

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

        .quick-desk-item .item-num {
            font-size: 12px;
            font-weight: 700;
            color: #94a3b8;
            margin-bottom: 4px;
        }

        .quick-desk-item .item-title {
            font-size: 16px;
            font-weight: 700;
            color: var(--secondary);
            margin-bottom: 4px;
            display: flex;
            align-items: center;
            justify-content: space-between;
        }

        .quick-desk-item .item-desc {
            font-size: 12px;
            color: #64748b;
            margin: 0;
        }

        .quick-desk-item .bi-arrow-up-right {
            font-size: 14px;
            color: #94a3b8;
        }

        .quick-desk-all {
            background: var(--primary);
            color: #ffffff;
            border-left: 1px solid var(--border-color);
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            text-align: center;
            padding: 16px;
            transition: background 0.2s ease;
        }

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

        .quick-desk-all span {
            font-size: 13px;
            font-weight: 600;
            margin-bottom: 6px;
        }

        /* Section Headlines */
        .section-header-block {
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-top: 36px;
            margin-bottom: 16px;
            padding-bottom: 12px;
            border-bottom: 2px solid #e2e8f0;
        }

        .section-header-left {
            display: flex;
            align-items: baseline;
            gap: 12px;
        }

        .section-title-mark {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 18px;
            font-weight: 700;
            color: var(--secondary);
            margin: 0;
        }

        .section-title-mark::before {
            content: '';
            display: inline-block;
            width: 4px;
            height: 18px;
            background-color: var(--primary);
            border-radius: 2px;
        }

        .section-subtext {
            font-size: 13px;
            color: #64748b;
        }

        .section-more-link {
            font-size: 13px;
            color: #64748b;
            display: flex;
            align-items: center;
            gap: 4px;
        }

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

        /* Dual Column Content */
        .dual-columns {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 24px;
            margin-bottom: 40px;
        }

        .col-card-wrapper {
            background: #ffffff;
            border: 1px solid var(--border-color);
            border-radius: 8px;
            padding: 24px;
            box-shadow: 0 2px 10px rgba(0, 0, 0, 0.02);
            display: flex;
            flex-direction: column;
        }

        .feature-hero-card {
            position: relative;
            border-radius: 6px;
            overflow: hidden;
            height: 250px;
            margin-bottom: 20px;
            background: #0f172a;
        }

        .feature-hero-card img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            opacity: 0.75;
            transition: transform 0.4s ease;
        }

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

        .feature-hero-overlay {
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            padding: 20px;
            background: linear-gradient(180deg, transparent 0%, rgba(10, 25, 47, 0.95) 100%);
            color: #ffffff;
        }

        .feature-hero-overlay h3 {
            font-size: 18px;
            font-weight: 700;
            margin-bottom: 12px;
            line-height: 1.4;
            color: #ffffff;
        }

        .slider-controls {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 11px;
            color: #94a3b8;
        }

        .slider-controls .control-btn {
            background: rgba(255, 255, 255, 0.15);
            border: none;
            color: #fff;
            width: 22px;
            height: 22px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            padding: 0;
        }

        .slider-controls .slider-progress {
            flex: 1;
            height: 2px;
            background: rgba(255, 255, 255, 0.2);
            position: relative;
        }

        .slider-controls .slider-progress-bar {
            width: 35%;
            height: 100%;
            background: #ffffff;
        }

        /* News List Items */
        .news-list {
            list-style: none;
            padding: 0;
            margin: 0;
            display: flex;
            flex-direction: column;
        }

        .news-item {
            padding: 14px 0;
            border-bottom: 1px solid #edf2f7;
            display: flex;
            justify-content: space-between;
            align-items: flex-start;
            gap: 16px;
        }

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

        .news-item-left {
            flex: 1;
        }

        .news-item-title {
            font-size: 14px;
            font-weight: 500;
            color: #1e293b;
            line-height: 1.5;
            margin-bottom: 6px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .news-item:hover .news-item-title {
            color: var(--primary);
        }

        .news-item-source {
            font-size: 12px;
            color: #94a3b8;
        }

        .news-item-date {
            font-size: 12px;
            color: #94a3b8;
            white-space: nowrap;
            margin-top: 2px;
        }

        .more-news-btn {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding-top: 16px;
            margin-top: auto;
            border-top: 1px solid #eef2f6;
            font-size: 13px;
            font-weight: 600;
            color: var(--primary);
        }

        .more-news-btn:hover {
            color: var(--primary-dark);
        }

        /* Secondary Headline Section */
        .headline-section {
            background: #ffffff;
            border: 1px solid var(--border-color);
            border-radius: 8px;
            padding: 24px;
            margin-bottom: 30px;
        }

        .headline-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 16px 30px;
        }

        .headline-item {
            display: flex;
            align-items: baseline;
            gap: 12px;
            padding: 10px 0;
            border-bottom: 1px dashed #edf2f7;
        }

        .headline-item .item-idx {
            font-size: 13px;
            font-weight: 700;
            color: var(--primary);
            width: 20px;
        }

        .headline-item a {
            flex: 1;
            font-size: 14px;
            color: #24292f;
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
        }

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

        .headline-item .item-meta {
            font-size: 12px;
            color: #94a3b8;
            white-space: nowrap;
        }

        /* Brand Profile & Service Pillars */
        .platform-features {
            background: #ffffff;
            border: 1px solid var(--border-color);
            border-radius: 8px;
            padding: 30px;
            margin-bottom: 40px;
        }

        .feature-box {
            border-right: 1px solid #edf2f7;
            padding: 0 20px;
        }

        .feature-box:last-child {
            border-right: none;
        }

        .feature-box h4 {
            font-size: 16px;
            font-weight: 700;
            color: var(--secondary);
            margin-bottom: 8px;
        }

        .feature-box p {
            font-size: 13px;
            color: var(--text-muted);
            margin: 0;
            line-height: 1.6;
        }

        /* Footer */
        .site-footer {
            background: #ffffff;
            border-top: 1px solid var(--border-color);
            padding: 48px 0 24px 0;
            margin-top: 60px;
        }

        .footer-brand {
            margin-bottom: 20px;
        }

        .footer-logo-title {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 20px;
            font-weight: 800;
            color: var(--secondary);
            margin-bottom: 12px;
        }

        .footer-desc {
            font-size: 13px;
            color: #64748b;
            line-height: 1.6;
            max-width: 440px;
        }

        .footer-nav-col h5 {
            font-size: 13px;
            font-weight: 700;
            color: #94a3b8;
            text-transform: uppercase;
            letter-spacing: 0.5px;
            margin-bottom: 16px;
        }

        .footer-nav-links {
            list-style: none;
            padding: 0;
            margin: 0;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .footer-nav-links a {
            font-size: 13px;
            color: #475569;
        }

        .footer-nav-links a:hover {
            color: var(--primary);
        }

        .footer-bottom {
            margin-top: 40px;
            padding-top: 20px;
            border-top: 1px solid #edf2f7;
            display: flex;
            justify-content: space-between;
            align-items: center;
            font-size: 12px;
            color: #94a3b8;
        }

        /* Mobile Breakpoints */
        @media (max-width: 1024px) {
            .quick-desk {
                grid-template-columns: 1fr 1fr;
            }
            .quick-desk-intro {
                grid-column: span 2;
            }
            .quick-desk-all {
                grid-column: span 2;
                padding: 12px;
            }
        }

        @media (max-width: 768px) {
            .dual-columns {
                grid-template-columns: 1fr;
            }
            .headline-grid {
                grid-template-columns: 1fr;
            }
            .site-header {
                padding-top: 16px;
            }
            .header-search {
                margin-top: 16px;
                max-width: 100%;
            }
            .nav-list {
                gap: 16px;
                overflow-x: auto;
                white-space: nowrap;
                padding-bottom: 8px;
            }
            .feature-box {
                border-right: none;
                border-bottom: 1px solid #edf2f7;
                padding: 16px 0;
            }
            .footer-bottom {
                flex-direction: column;
                gap: 12px;
                text-align: center;
            }
        }

        @media (max-width: 520px) {
            .quick-desk {
                grid-template-columns: 1fr;
            }
            .quick-desk-intro, .quick-desk-all {
                grid-column: span 1;
            }
            .quick-desk-item {
                border-left: none;
                border-top: 1px solid var(--border-color);
            }
            .brand-text h1 {
                font-size: 20px;
            }
            .feature-hero-card {
                height: 200px;
            }
        }

/* roulang page: article */
:root {
      --primary: #1e4b8f;
      --primary-dark: #123366;
      --primary-light: #eef4fc;
      --secondary: #0c1e3d;
      --accent: #2563eb;
      --body-bg: #f5f7fa;
      --card-bg: #ffffff;
      --border-color: #e5e9f0;
      --text-dark: #1a2233;
      --text-muted: #64748b;
      --top-banner-bg: #0b1f3a;
    }
    body {
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", "PingFang SC", "Noto Sans CJK SC", "Microsoft YaHei", sans-serif;
      background-color: var(--body-bg);
      color: var(--text-dark);
      line-height: 1.6;
      -webkit-font-smoothing: antialiased;
    }
    a {
      text-decoration: none;
      color: inherit;
      transition: all 0.2s ease-in-out;
    }

    /* Site Header */
    .site-header {
      background: #ffffff;
      border-bottom: 1px solid var(--border-color);
      padding: 24px 0 0 0;
    }
    .header-brand {
      display: flex;
      align-items: center;
      gap: 14px;
    }
    .brand-logo-icon {
      width: 44px;
      height: 44px;
      background: linear-gradient(135deg, var(--primary) 0%, #3b82f6 100%);
      color: #ffffff;
      border-radius: 8px;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 22px;
      box-shadow: 0 4px 10px rgba(30, 75, 143, 0.25);
    }
    .brand-text h1 {
      font-size: 24px;
      font-weight: 800;
      color: var(--secondary);
      margin: 0;
      letter-spacing: -0.5px;
      line-height: 1.1;
    }
    .brand-text .brand-tagline {
      font-size: 11px;
      text-transform: uppercase;
      color: #64748b;
      letter-spacing: 2px;
      margin-top: 3px;
    }
    .header-motto {
      font-size: 13px;
      color: #64748b;
      border-left: 1px solid var(--border-color);
      padding-left: 18px;
      margin-left: 10px;
    }
    .header-search {
      position: relative;
      width: 100%;
      max-width: 380px;
    }
    .header-search input {
      width: 100%;
      padding: 9px 40px 9px 36px;
      font-size: 13px;
      border: 1px solid #dce2ea;
      border-radius: 6px;
      background-color: #f8fafc;
      color: var(--text-dark);
      outline: none;
    }
    .header-search input:focus {
      background-color: #fff;
      border-color: var(--accent);
      box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.12);
    }
    .header-search .bi-search {
      position: absolute;
      left: 12px;
      top: 50%;
      transform: translateY(-50%);
      color: #94a3b8;
      font-size: 14px;
    }
    .header-search .bi-arrow-up-right {
      position: absolute;
      right: 12px;
      top: 50%;
      transform: translateY(-50%);
      color: #94a3b8;
      font-size: 13px;
    }

    /* Main Navigation */
    .site-nav {
      margin-top: 20px;
      border-top: 1px solid #edf2f7;
    }
    .nav-list {
      display: flex;
      align-items: center;
      list-style: none;
      margin: 0;
      padding: 0;
      gap: 28px;
    }
    .nav-link-item {
      display: block;
      padding: 14px 0;
      font-size: 14px;
      font-weight: 500;
      color: #334155;
      position: relative;
    }
    .nav-link-item:hover, .nav-link-item.active {
      color: var(--primary);
      font-weight: 600;
    }
    .nav-link-item.active::after {
      content: '';
      position: absolute;
      bottom: -1px;
      left: 0;
      width: 100%;
      height: 2.5px;
      background-color: var(--primary);
    }
    .nav-link-right {
      margin-left: auto;
      display: flex;
      align-items: center;
      gap: 6px;
      font-size: 13px;
      color: #64748b;
    }

    /* Breadcrumbs */
    .detail-breadcrumb-wrap {
      padding: 18px 0;
      background: #ffffff;
      border-bottom: 1px solid var(--border-color);
      margin-bottom: 30px;
    }
    .detail-breadcrumb {
      display: flex;
      align-items: center;
      gap: 8px;
      font-size: 13px;
      color: #64748b;
      margin: 0;
      padding: 0;
      list-style: none;
    }
    .detail-breadcrumb li a:hover {
      color: var(--primary);
    }
    .detail-breadcrumb .separator {
      color: #cbd5e1;
      font-size: 11px;
    }
    .detail-breadcrumb .active {
      color: #1e293b;
      font-weight: 600;
      max-width: 450px;
      white-space: nowrap;
      overflow: hidden;
      text-overflow: ellipsis;
    }

    /* Main Article Container */
    .article-main-box {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: 8px;
      padding: 40px;
      box-shadow: 0 4px 16px rgba(0, 0, 0, 0.02);
      margin-bottom: 40px;
    }
    .article-header {
      padding-bottom: 24px;
      border-bottom: 1px solid var(--border-color);
      margin-bottom: 30px;
    }
    .article-category-badge {
      display: inline-block;
      padding: 4px 10px;
      background: var(--primary-light);
      color: var(--primary);
      font-size: 12px;
      font-weight: 600;
      border-radius: 4px;
      margin-bottom: 16px;
    }
    .article-title-main {
      font-size: 28px;
      font-weight: 800;
      line-height: 1.4;
      color: var(--secondary);
      margin-bottom: 18px;
    }
    .article-meta-info {
      display: flex;
      flex-wrap: wrap;
      align-items: center;
      gap: 20px;
      font-size: 13px;
      color: #64748b;
    }
    .article-meta-info span {
      display: flex;
      align-items: center;
      gap: 6px;
    }

    /* Article Body Typography */
    .article-content-render {
      font-size: 16px;
      line-height: 1.85;
      color: #334155;
    }
    .article-content-render p {
      margin-bottom: 22px;
    }
    .article-content-render h2 {
      font-size: 22px;
      font-weight: 700;
      color: var(--secondary);
      margin-top: 36px;
      margin-bottom: 16px;
      padding-bottom: 8px;
      border-bottom: 1px solid #edf2f7;
    }
    .article-content-render h3 {
      font-size: 18px;
      font-weight: 700;
      color: var(--secondary);
      margin-top: 28px;
      margin-bottom: 14px;
    }
    .article-content-render img {
      max-width: 100%;
      height: auto;
      border-radius: 6px;
      margin: 20px 0;
      box-shadow: 0 4px 14px rgba(0, 0, 0, 0.05);
    }
    .article-content-render blockquote {
      margin: 24px 0;
      padding: 16px 22px;
      background: #f8fafc;
      border-left: 4px solid var(--primary);
      border-radius: 0 6px 6px 0;
      color: #475569;
      font-style: italic;
    }
    .article-content-render ul, .article-content-render ol {
      margin-bottom: 22px;
      padding-left: 24px;
    }
    .article-content-render li {
      margin-bottom: 8px;
    }

    /* Article Statement Box */
    .article-disclaimer-box {
      margin-top: 40px;
      padding: 20px 24px;
      background: #f8fafc;
      border: 1px dashed #cbd5e1;
      border-radius: 6px;
      font-size: 13px;
      color: #64748b;
      line-height: 1.7;
    }
    .article-disclaimer-box strong {
      color: #334155;
    }

    /* Sidebar Cards */
    .sidebar-widget {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: 8px;
      padding: 24px;
      margin-bottom: 24px;
      box-shadow: 0 4px 16px rgba(0, 0, 0, 0.02);
    }
    .sidebar-widget-title {
      font-size: 16px;
      font-weight: 700;
      color: var(--secondary);
      padding-bottom: 12px;
      border-bottom: 2px solid #e2e8f0;
      margin-bottom: 18px;
      display: flex;
      align-items: center;
      justify-content: space-between;
    }
    .sidebar-post-list {
      list-style: none;
      padding: 0;
      margin: 0;
    }
    .sidebar-post-item {
      padding: 12px 0;
      border-bottom: 1px solid #f1f5f9;
      display: flex;
      gap: 12px;
      align-items: flex-start;
    }
    .sidebar-post-item:last-child {
      border-bottom: none;
      padding-bottom: 0;
    }
    .sidebar-post-index {
      font-size: 13px;
      font-weight: 700;
      color: #94a3b8;
      line-height: 1.4;
    }
    .sidebar-post-item:nth-child(-n+3) .sidebar-post-index {
      color: var(--primary);
    }
    .sidebar-post-title {
      font-size: 13px;
      font-weight: 500;
      color: #334155;
      line-height: 1.5;
    }
    .sidebar-post-title:hover {
      color: var(--primary);
    }

    .risk-alert-card {
      background: linear-gradient(135deg, #0f2b48 0%, #1e4b8f 100%);
      color: #ffffff;
      border-radius: 8px;
      padding: 26px;
    }
    .risk-alert-card h4 {
      font-size: 16px;
      font-weight: 700;
      margin-bottom: 12px;
    }
    .risk-alert-card p {
      font-size: 13px;
      color: #cbd5e1;
      margin-bottom: 18px;
      line-height: 1.7;
    }
    .risk-alert-btn {
      display: inline-block;
      width: 100%;
      text-align: center;
      padding: 10px;
      background: #ffffff;
      color: var(--primary-dark);
      font-size: 13px;
      font-weight: 600;
      border-radius: 6px;
    }
    .risk-alert-btn:hover {
      background: #f1f5f9;
      color: var(--primary);
    }

    /* Not Found Box */
    .not-found-wrapper {
      padding: 60px 20px;
      text-align: center;
    }
    .not-found-icon {
      font-size: 56px;
      color: #cbd5e1;
      margin-bottom: 16px;
    }
    .not-found-title {
      font-size: 20px;
      font-weight: 700;
      color: #334155;
      margin-bottom: 10px;
    }
    .not-found-desc {
      font-size: 14px;
      color: #64748b;
      margin-bottom: 24px;
    }

    /* Site Footer */
    .site-footer {
      background: #0b1f3a;
      color: #94a3b8;
      padding: 50px 0 20px 0;
      margin-top: 50px;
      border-top: 1px solid #1e293b;
    }
    .footer-brand .footer-logo-title {
      display: flex;
      align-items: center;
      gap: 12px;
      color: #ffffff;
      font-size: 18px;
      font-weight: 700;
      margin-bottom: 16px;
    }
    .footer-brand .footer-desc {
      font-size: 13px;
      line-height: 1.8;
      color: #94a3b8;
    }
    .footer-nav-col h5 {
      color: #ffffff;
      font-size: 15px;
      font-weight: 600;
      margin-bottom: 16px;
    }
    .footer-nav-links {
      list-style: none;
      padding: 0;
      margin: 0;
    }
    .footer-nav-links li {
      margin-bottom: 10px;
    }
    .footer-nav-links a {
      font-size: 13px;
      color: #94a3b8;
    }
    .footer-nav-links a:hover {
      color: #ffffff;
    }
    .footer-bottom {
      border-top: 1px solid rgba(255, 255, 255, 0.08);
      margin-top: 40px;
      padding-top: 20px;
      font-size: 12px;
      display: flex;
      flex-wrap: wrap;
      justify-content: space-between;
      gap: 10px;
    }

    /* Responsive CSS */
    @media (max-width: 991px) {
      .header-search {
        max-width: 100%;
      }
      .article-main-box {
        padding: 26px 20px;
      }
      .article-title-main {
        font-size: 22px;
      }
    }
    @media (max-width: 767px) {
      .site-header {
        padding-top: 16px;
      }
      .nav-list {
        gap: 18px;
        overflow-x: auto;
        white-space: nowrap;
        padding-bottom: 10px;
      }
      .article-meta-info {
        gap: 12px;
      }
      .detail-breadcrumb .active {
        max-width: 180px;
      }
      .footer-bottom {
        flex-direction: column;
        text-align: center;
      }
    }

/* roulang page: category1 */
:root {
      --primary: #1e4b8f;
      --primary-dark: #123366;
      --primary-light: #eef4fc;
      --secondary: #0c1e3d;
      --accent: #2563eb;
      --body-bg: #f5f7fa;
      --card-bg: #ffffff;
      --border-color: #e5e9f0;
      --text-dark: #1a2233;
      --text-muted: #64748b;
      --top-banner-bg: #0b1f3a;
    }
    body {
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", "PingFang SC", "Noto Sans CJK SC", "Microsoft YaHei", sans-serif;
      background-color: var(--body-bg);
      color: var(--text-dark);
      line-height: 1.6;
      -webkit-font-smoothing: antialiased;
    }
    a {
      text-decoration: none;
      color: inherit;
      transition: all 0.2s ease-in-out;
    }
    .site-header {
      background: #ffffff;
      border-bottom: 1px solid var(--border-color);
      padding: 24px 0 0 0;
    }
    .header-brand {
      display: flex;
      align-items: center;
      gap: 14px;
    }
    .brand-logo-icon {
      width: 44px;
      height: 44px;
      background: linear-gradient(135deg, var(--primary) 0%, #3b82f6 100%);
      color: #ffffff;
      border-radius: 8px;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 22px;
      box-shadow: 0 4px 10px rgba(30, 75, 143, 0.25);
    }
    .brand-text h1 {
      font-size: 24px;
      font-weight: 800;
      color: var(--secondary);
      margin: 0;
      letter-spacing: -0.5px;
      line-height: 1.1;
    }
    .brand-text .brand-tagline {
      font-size: 11px;
      text-transform: uppercase;
      color: #64748b;
      letter-spacing: 2px;
      margin-top: 3px;
    }
    .header-motto {
      font-size: 13px;
      color: #64748b;
      border-left: 1px solid var(--border-color);
      padding-left: 18px;
      margin-left: 10px;
    }
    .header-search {
      position: relative;
      width: 100%;
      max-width: 380px;
    }
    .header-search input {
      width: 100%;
      padding: 9px 40px 9px 36px;
      font-size: 13px;
      border: 1px solid #dce2ea;
      border-radius: 6px;
      background-color: #f8fafc;
      color: var(--text-dark);
      outline: none;
    }
    .header-search input:focus {
      background-color: #fff;
      border-color: var(--accent);
      box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.12);
    }
    .header-search .bi-search {
      position: absolute;
      left: 12px;
      top: 50%;
      transform: translateY(-50%);
      color: #94a3b8;
      font-size: 14px;
    }
    .header-search .bi-arrow-up-right {
      position: absolute;
      right: 12px;
      top: 50%;
      transform: translateY(-50%);
      color: #94a3b8;
      font-size: 13px;
    }
    .site-nav {
      margin-top: 20px;
      border-top: 1px solid #edf2f7;
    }
    .nav-list {
      display: flex;
      align-items: center;
      list-style: none;
      margin: 0;
      padding: 0;
      gap: 28px;
    }
    .nav-link-item {
      display: block;
      padding: 14px 0;
      font-size: 14px;
      font-weight: 500;
      color: #334155;
      position: relative;
    }
    .nav-link-item:hover, .nav-link-item.active {
      color: var(--primary);
      font-weight: 600;
    }
    .nav-link-item.active::after {
      content: '';
      position: absolute;
      bottom: -1px;
      left: 0;
      width: 100%;
      height: 2.5px;
      background-color: var(--primary);
    }
    .nav-link-right {
      margin-left: auto;
      display: flex;
      align-items: center;
      gap: 6px;
      font-size: 13px;
      color: #64748b;
    }
    .category-hero {
      background: linear-gradient(135deg, #0b1f3a 0%, #1e4b8f 100%);
      color: #ffffff;
      padding: 56px 0 48px;
      margin-bottom: 32px;
      position: relative;
      overflow: hidden;
    }
    .category-hero::before {
      content: '';
      position: absolute;
      top: 0; left: 0; right: 0; bottom: 0;
      background: url('/assets/images/bbe4130c437d8bb5.jpg') center/cover no-repeat;
      opacity: 0.12;
      pointer-events: none;
    }
    .category-hero .hero-content {
      position: relative;
      z-index: 2;
    }
    .category-hero .hero-badge {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      background: rgba(255, 255, 255, 0.12);
      border: 1px solid rgba(255, 255, 255, 0.2);
      padding: 5px 14px;
      border-radius: 20px;
      font-size: 13px;
      letter-spacing: 0.5px;
      margin-bottom: 16px;
      color: #93c5fd;
    }
    .category-hero h2 {
      font-size: 32px;
      font-weight: 800;
      margin-bottom: 14px;
      letter-spacing: -0.5px;
      line-height: 1.3;
    }
    .category-hero p {
      font-size: 15px;
      color: #cbd5e1;
      max-width: 720px;
      margin-bottom: 24px;
      line-height: 1.7;
    }
    .hero-stat-row {
      display: flex;
      gap: 32px;
      flex-wrap: wrap;
      margin-top: 12px;
    }
    .hero-stat-item {
      border-left: 2px solid #3b82f6;
      padding-left: 14px;
    }
    .hero-stat-item .num {
      font-size: 22px;
      font-weight: 700;
      color: #ffffff;
      line-height: 1;
    }
    .hero-stat-item .label {
      font-size: 12px;
      color: #94a3b8;
      margin-top: 4px;
    }
    .section-header-block {
      display: flex;
      align-items: center;
      justify-content: space-between;
      margin-bottom: 20px;
      padding-bottom: 12px;
      border-bottom: 2px solid #e2e8f0;
    }
    .section-title-mark {
      display: flex;
      align-items: center;
      gap: 10px;
      font-size: 20px;
      font-weight: 800;
      color: var(--secondary);
    }
    .section-title-mark::before {
      content: '';
      display: inline-block;
      width: 4px;
      height: 18px;
      background-color: var(--primary);
      border-radius: 2px;
    }
    .info-card {
      background: var(--card-bg);
      border: 1px solid var(--border-color);
      border-radius: 8px;
      padding: 24px;
      height: 100%;
      box-shadow: 0 2px 6px rgba(0, 0, 0, 0.02);
      transition: all 0.25s ease;
    }
    .info-card:hover {
      box-shadow: 0 8px 20px rgba(0, 0, 0, 0.06);
      transform: translateY(-3px);
      border-color: #cbd5e1;
    }
    .info-icon {
      width: 44px;
      height: 44px;
      background: var(--primary-light);
      color: var(--primary);
      border-radius: 8px;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 20px;
      margin-bottom: 16px;
    }
    .info-card h3 {
      font-size: 17px;
      font-weight: 700;
      color: var(--secondary);
      margin-bottom: 10px;
    }
    .info-card p {
      font-size: 13.5px;
      color: var(--text-muted);
      margin-bottom: 0;
      line-height: 1.6;
    }
    .post-card {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: 8px;
      overflow: hidden;
      display: flex;
      flex-direction: column;
      height: 100%;
      box-shadow: 0 2px 6px rgba(0,0,0,0.02);
      transition: all 0.25s ease;
    }
    .post-card:hover {
      box-shadow: 0 10px 24px rgba(30, 75, 143, 0.08);
      transform: translateY(-3px);
      border-color: #cbd5e1;
    }
    .post-card-body {
      padding: 20px;
      display: flex;
      flex-direction: column;
      flex-grow: 1;
    }
    .post-meta {
      display: flex;
      align-items: center;
      gap: 12px;
      font-size: 12px;
      color: var(--text-muted);
      margin-bottom: 10px;
    }
    .post-badge {
      background: var(--primary-light);
      color: var(--primary);
      padding: 2px 8px;
      border-radius: 4px;
      font-weight: 600;
    }
    .post-title {
      font-size: 16px;
      font-weight: 700;
      color: var(--secondary);
      margin-bottom: 10px;
      line-height: 1.4;
      display: -webkit-box;
      -webkit-line-clamp: 2;
      -webkit-box-orient: vertical;
      overflow: hidden;
    }
    .post-title:hover {
      color: var(--accent);
    }
    .post-desc {
      font-size: 13px;
      color: #64748b;
      margin-bottom: 16px;
      line-height: 1.6;
      display: -webkit-box;
      -webkit-line-clamp: 3;
      -webkit-box-orient: vertical;
      overflow: hidden;
      flex-grow: 1;
    }
    .post-footer {
      border-top: 1px solid #f1f5f9;
      padding-top: 12px;
      font-size: 12px;
      color: var(--primary);
      font-weight: 600;
      display: flex;
      align-items: center;
      justify-content: space-between;
    }
    .step-box {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: 8px;
      padding: 24px;
      text-align: center;
      position: relative;
      height: 100%;
    }
    .step-index {
      width: 36px;
      height: 36px;
      line-height: 36px;
      background: var(--primary);
      color: #ffffff;
      border-radius: 50%;
      font-weight: 800;
      font-size: 16px;
      margin: 0 auto 16px;
    }
    .step-box h4 {
      font-size: 16px;
      font-weight: 700;
      color: var(--secondary);
      margin-bottom: 8px;
    }
    .step-box p {
      font-size: 13px;
      color: var(--text-muted);
      margin-bottom: 0;
    }
    .faq-card {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: 8px;
      margin-bottom: 14px;
      padding: 20px;
    }
    .faq-card h4 {
      font-size: 15px;
      font-weight: 700;
      color: var(--secondary);
      margin-bottom: 8px;
      display: flex;
      align-items: center;
      gap: 8px;
    }
    .faq-card h4 i {
      color: var(--accent);
    }
    .faq-card p {
      font-size: 13.5px;
      color: #64748b;
      margin-bottom: 0;
      line-height: 1.6;
    }
    .cta-banner {
      background: linear-gradient(135deg, #1e4b8f 0%, #0c1e3d 100%);
      color: #ffffff;
      border-radius: 12px;
      padding: 44px 36px;
      margin: 48px 0;
      box-shadow: 0 12px 28px rgba(12, 30, 61, 0.15);
    }
    .cta-banner h3 {
      font-size: 24px;
      font-weight: 800;
      margin-bottom: 12px;
    }
    .cta-banner p {
      font-size: 14.5px;
      color: #cbd5e1;
      max-width: 680px;
      margin-bottom: 0;
    }
    .cta-btn {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      background: #ffffff;
      color: var(--primary-dark);
      font-weight: 700;
      padding: 12px 28px;
      border-radius: 6px;
      font-size: 14px;
      box-shadow: 0 4px 12px rgba(0,0,0,0.1);
    }
    .cta-btn:hover {
      background: #f8fafc;
      color: var(--accent);
    }
    .site-footer {
      background: #0b1f3a;
      color: #94a3b8;
      padding: 56px 0 24px;
      border-top: 1px solid #1e293b;
      font-size: 13px;
    }
    .footer-logo-title {
      display: flex;
      align-items: center;
      gap: 12px;
      color: #ffffff;
      font-size: 18px;
      font-weight: 700;
      margin-bottom: 16px;
    }
    .footer-desc {
      color: #94a3b8;
      font-size: 13px;
      line-height: 1.7;
    }
    .footer-nav-col h5 {
      color: #ffffff;
      font-size: 14px;
      font-weight: 700;
      margin-bottom: 16px;
      letter-spacing: 0.5px;
    }
    .footer-nav-links {
      list-style: none;
      padding: 0;
      margin: 0;
    }
    .footer-nav-links li {
      margin-bottom: 10px;
    }
    .footer-nav-links a {
      color: #94a3b8;
    }
    .footer-nav-links a:hover {
      color: #ffffff;
    }
    .footer-bottom {
      margin-top: 40px;
      padding-top: 24px;
      border-top: 1px solid rgba(255, 255, 255, 0.08);
      font-size: 12px;
      display: flex;
      flex-direction: column;
      gap: 8px;
    }
    @media (min-width: 768px) {
      .footer-bottom {
        flex-direction: row;
        justify-content: space-between;
      }
    }
    @media (max-width: 1024px) {
      .nav-list {
        gap: 18px;
      }
    }
    @media (max-width: 768px) {
      .category-hero {
        padding: 36px 0;
      }
      .category-hero h2 {
        font-size: 24px;
      }
      .nav-list {
        overflow-x: auto;
        white-space: nowrap;
        padding-bottom: 8px;
      }
      .cta-banner {
        padding: 30px 20px;
        text-align: center;
      }
      .cta-btn-wrap {
        margin-top: 20px;
      }
    }
    @media (max-width: 520px) {
      .brand-text h1 {
        font-size: 20px;
      }
      .hero-stat-row {
        gap: 16px;
      }
    }