:root {
      --primary-color: rgb(14,116,144);
      --primary-hover: rgb(11,90,113);
      --glacier-blue: #1D7BFF;
      --silver-white: #F8FAFC;
      --deep-ocean: #0B132B;
      --ocean-ink: #1C2541;
      --text-main: #334155;
      --text-muted: #64748B;
      --bg-light: #F1F5F9;
      --border-color: #E2E8F0;
    }
    * { box-sizing: border-box; margin: 0; padding: 0; }
    body { font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif; color: var(--text-main); background-color: var(--silver-white); line-height: 1.6; }
    a { color: inherit; text-decoration: none; transition: all 0.3s ease; }
    
    
    .site-header { background: #ffffff; box-shadow: 0 2px 10px rgba(0,0,0,0.05); position: sticky; top: 0; z-index: 1000; height: 70px; }
    .header-container { max-width: 1200px; margin: 0 auto; display: flex; align-items: center; justify-content: space-between; height: 100%; padding: 0 20px; }
    
    .logo { display: inline-flex; align-items: center; gap: 12px; text-decoration: none; }
    .logo img { display: block; height: 40px; width: auto; max-width: 160px; object-fit: contain; flex-shrink: 0; }
    .logo span { display: inline-block; font-size: 18px; font-weight: 800; line-height: 1; color: var(--primary-color); white-space: nowrap; }
    
    .desktop-nav { display: flex; align-items: center; gap: 24px; }
    .desktop-nav a { font-size: 15px; font-weight: 500; color: var(--text-main); padding: 8px 12px; border-radius: 6px; }
    .desktop-nav a:hover { color: var(--primary-color); background: var(--bg-light); }
    
    .menu-toggle { display: none; background: none; border: none; font-size: 24px; color: var(--text-main); cursor: pointer; }
    
    
    .mobile-drawer { position: fixed; top: 0; left: -100%; width: 100%; height: 100%; z-index: 2000; transition: left 0.3s cubic-bezier(0.4, 0, 0.2, 1); display: flex; }
    .mobile-drawer.active { left: 0; }
    .drawer-backdrop { position: absolute; width: 100%; height: 100%; background: rgba(0,0,0,0.5); backdrop-filter: blur(4px); }
    .drawer-content { position: relative; width: 80%; max-width: 300px; height: 100%; background: #ffffff; display: flex; flex-direction: column; padding: 20px; box-shadow: 4px 0 20px rgba(0,0,0,0.15); }
    .drawer-header { display: flex; align-items: center; justify-content: space-between; margin-bottom: 30px; border-bottom: 1px solid var(--border-color); padding-bottom: 15px; }
    .close-drawer { background: none; border: none; font-size: 28px; cursor: pointer; color: var(--text-muted); }
    .drawer-nav { display: flex; flex-direction: column; gap: 16px; overflow-y: auto; }
    .drawer-nav a { font-size: 16px; font-weight: 600; padding: 10px 15px; border-radius: 8px; color: var(--text-main); }
    .drawer-nav a:hover { background: var(--bg-light); color: var(--primary-color); }

    
    .page-banner { background: linear-gradient(135deg, var(--deep-ocean) 0%, var(--primary-color) 100%); color: #ffffff; padding: 50px 20px; }
    .banner-container { max-width: 1200px; margin: 0 auto; }
    .breadcrumbs { display: flex; gap: 8px; font-size: 13px; opacity: 0.8; margin-bottom: 15px; }
    .breadcrumbs a:hover { text-decoration: underline; }
    .page-title { font-size: 28px; font-weight: 800; }

    
    .content-section { max-width: 1200px; margin: 40px auto; padding: 0 20px; display: grid; grid-template-columns: 2.5fr 1fr; gap: 40px; }
    
    
    .articles-list { display: flex; flex-direction: column; gap: 30px; }
    
    
    .article-card { background: #ffffff; border-radius: 12px; overflow: hidden; border: 1px solid var(--border-color); display: flex; flex-direction: column; transition: transform 0.3s ease; }
    .article-card:hover { transform: translateY(-5px); box-shadow: 0 10px 30px rgba(0,0,0,0.05); }
    .article-image { width: 100%; height: 240px; object-fit: cover; background: #e2e8f0; }
    .article-body { padding: 24px; display: flex; flex-direction: column; flex-grow: 1; }
    .article-meta { display: flex; flex-wrap: wrap; align-items: center; gap: 12px; margin-bottom: 12px; font-size: 12px; color: var(--text-muted); }
    .article-tag { background: rgba(14,116,144,0.08); color: var(--primary-color); padding: 2px 8px; border-radius: 4px; font-weight: 600; }
    .article-title { font-size: 20px; font-weight: 700; color: var(--deep-ocean); margin-bottom: 10px; }
    .article-summary { font-size: 14px; color: var(--text-muted); margin-bottom: 20px; line-height: 1.6; }
    .article-footer { margin-top: auto; padding-top: 15px; border-top: 1px solid var(--border-color); display: flex; justify-content: space-between; align-items: center; font-size: 12px; color: var(--text-muted); }
    .read-more { font-weight: 600; color: var(--primary-color); }

    
    .pagination { display: flex; justify-content: center; align-items: center; gap: 8px; margin-top: 50px; }
    .pagination a, .pagination span { display: inline-flex; align-items: center; justify-content: center; min-width: 40px; height: 40px; padding: 0 10px; border-radius: 6px; border: 1px solid var(--border-color); font-size: 14px; background: #ffffff; }
    .pagination a:hover { border-color: var(--primary-color); color: var(--primary-color); }
    .pagination .active { background: var(--primary-color); border-color: var(--primary-color); color: #ffffff; pointer-events: none; }
    .pagination .disabled { opacity: 0.5; pointer-events: none; }

    
    .sidebar { display: flex; flex-direction: column; gap: 30px; }
    .sidebar-widget { background: #ffffff; border-radius: 12px; border: 1px solid var(--border-color); padding: 24px; }
    .widget-title { font-size: 16px; font-weight: 700; color: var(--deep-ocean); margin-bottom: 15px; padding-left: 10px; border-left: 4px solid var(--primary-color); }
    .widget-tags-list { display: flex; flex-wrap: wrap; gap: 8px; }
    .widget-tag-item { font-size: 13px; background: var(--bg-light); padding: 6px 12px; border-radius: 4px; color: var(--text-main); }
    .widget-tag-item:hover { background: var(--primary-color); color: #ffffff; }

    
    .site-footer { background: var(--deep-ocean); color: #94A3B8; padding: 60px 20px 30px 20px; border-top: 1px solid #1E293B; font-size: 14px; margin-top: 80px; }
    .footer-container { max-width: 1200px; margin: 0 auto; display: grid; grid-template-columns: 2fr 1fr 1fr; gap: 40px; margin-bottom: 40px; }
    .footer-brand { display: flex; flex-direction: column; gap: 15px; }
    .footer-brand .logo span { color: #ffffff; }
    .footer-brand p { font-size: 13px; line-height: 1.6; max-width: 320px; }
    .footer-links-group h4 { color: #ffffff; font-size: 15px; font-weight: 700; margin-bottom: 20px; }
    .footer-links-group ul { list-style: none; display: flex; flex-direction: column; gap: 12px; }
    .footer-links-group a { color: #94A3B8; }
    .footer-links-group a:hover { color: #ffffff; }
    .footer-bottom { max-width: 1200px; margin: 0 auto; padding-top: 30px; border-top: 1px solid rgba(255,255,255,0.08); display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 20px; font-size: 12px; }
    .footer-seo-links { display: flex; gap: 15px; flex-wrap: wrap; }

    @media (max-width: 992px) {
      .content-section { grid-template-columns: 1fr; }
    }
    @media (max-width: 768px) {
      .desktop-nav { display: none; }
      .menu-toggle { display: block; }
      .footer-container { grid-template-columns: 1fr; gap: 30px; }
    }