/* roulang page: index */
:root {
            --brand-blue: #1d4ed8;
            --brand-dark: #0f172a;
            --brand-bg: #f8fafc;
            --brand-card-border: #e2e8f0;
            --brand-sub: #64748b;
        }
        body {
            background-color: var(--brand-bg);
            color: #1e293b;
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
            -webkit-font-smoothing: antialiased;
        }
        .top-notice-bar {
            background-color: #0f172a;
        }
        .nav-border {
            border-bottom: 1px solid #e2e8f0;
        }
        .hero-banner-title {
            letter-spacing: -0.02em;
        }
        .line-clamp-2 {
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .line-clamp-1 {
            display: -webkit-box;
            -webkit-line-clamp: 1;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        @media (max-width: 768px) {
            .mobile-hide { display: none; }
            .mobile-flex-col { flex-direction: column; }
        }

/* roulang page: article */
:root {
      --brand-blue: #1d4ed8;
      --brand-dark: #0f172a;
      --brand-bg: #f8fafc;
      --brand-card-border: #e2e8f0;
      --brand-sub: #64748b;
    }
    body {
      background-color: var(--brand-bg);
      color: #1e293b;
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
      -webkit-font-smoothing: antialiased;
    }
    .article-entry p {
      margin-bottom: 1.35rem;
      line-height: 1.85;
      color: #334155;
      font-size: 1.05rem;
    }
    .article-entry h2 {
      font-size: 1.45rem;
      font-weight: 700;
      color: #0f172a;
      margin-top: 2rem;
      margin-bottom: 1rem;
      padding-bottom: 0.5rem;
      border-bottom: 1px solid #e2e8f0;
    }
    .article-entry h3 {
      font-size: 1.25rem;
      font-weight: 600;
      color: #1e293b;
      margin-top: 1.5rem;
      margin-bottom: 0.75rem;
    }
    .article-entry ul, .article-entry ol {
      margin-bottom: 1.35rem;
      padding-left: 1.5rem;
      color: #334155;
    }
    .article-entry li {
      margin-bottom: 0.5rem;
      line-height: 1.7;
    }
    @media (max-width: 768px) {
      .mobile-hide { display: none; }
      .mobile-flex-col { flex-direction: column; }
    }

/* roulang page: category1 */
:root {
      --brand-blue: #1d4ed8;
      --brand-dark: #0f172a;
      --brand-bg: #f8fafc;
      --brand-card-border: #e2e8f0;
      --brand-sub: #64748b;
    }
    body {
      background-color: var(--brand-bg);
      color: #1e293b;
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
      -webkit-font-smoothing: antialiased;
    }
    .nav-border {
      border-bottom: 1px solid #e2e8f0;
    }
    .hero-banner-title {
      letter-spacing: -0.02em;
    }
    .card-hover-effect {
      transition: all 0.25s ease-in-out;
    }
    .card-hover-effect:hover {
      transform: translateY(-3px);
      box-shadow: 0 10px 25px -5px rgba(15, 23, 42, 0.08);
    }
    @media (max-width: 768px) {
      .mobile-hide { display: none !important; }
      .mobile-flex-col { flex-direction: column !important; }
      .mobile-text-center { text-align: center !important; }
    }
    @media (max-width: 520px) {
      .mobile-compact { padding: 1rem !important; }
    }