:root {
      --primary: rgb(52,168,83);
      --primary-hover: rgb(40,140,70);
      --glacier-blue: #1D7BFF;
      --glacier-deep: #0A2540;
      --silver-white: #F8FAFC;
      --dark-navy: #0d131a;
      --text-main: #333333;
      --text-muted: #666666;
      --border-color: #E2E8F0;
      --container-width: 1200px;
    }
    * { 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; }
    .container { max-width: var(--container-width); margin: 0 auto; padding: 0 20px; }
    
    
    .site-header { background: rgba(13, 25, 41, 0.95); backdrop-filter: blur(10px); position: sticky; top: 0; z-index: 1000; border-bottom: 1px solid rgba(255,255,255,0.1); }
    .header-container { display: flex; align-items: center; justify-content: space-between; height: 70px; }
    .logo { display: inline-flex; align-items: center; gap: 12px; }
    .logo img { display: block; height: 40px; width: auto; max-width: 160px; object-fit: contain; flex-shrink: 0; }
    .logo span { display: inline-block; font-size: 20px; font-weight: 800; line-height: 1; color: #FFF; white-space: nowrap; }
    .desktop-nav { display: flex; gap: 24px; }
    .desktop-nav a { color: rgba(255,255,255,0.8); font-size: 15px; font-weight: 500; padding: 6px 12px; border-radius: 4px; }
    .desktop-nav a:hover { color: #FFF; background: rgba(255,255,255,0.1); }
    .nav-toggle { display: none; background: none; border: none; cursor: pointer; padding: 4px; }
    .nav-toggle span { display: block; width: 24px; height: 2px; background: #FFF; margin: 5px 0; transition: 0.3s; }
    
    
    .drawer-overlay { position: fixed; top: 0; left: 0; width: 100%; height: 100%; background: rgba(0,0,0,0.5); z-index: 1001; opacity: 0; pointer-events: none; transition: 0.3s; }
    .drawer-overlay.active { opacity: 1; pointer-events: auto; }
    .mobile-drawer { position: fixed; top: 0; left: -280px; width: 280px; height: 100%; background: #0A2540; z-index: 1002; transition: 0.3s; display: flex; flex-direction: column; padding: 20px; }
    .mobile-drawer.active { left: 0; }
    .drawer-header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 30px; }
    .drawer-close { font-size: 28px; color: #FFF; background: none; border: none; cursor: pointer; }
    .drawer-nav { display: flex; flex-direction: column; gap: 15px; }
    .drawer-nav a { color: #FFF; font-size: 16px; padding: 10px; border-bottom: 1px solid rgba(255,255,255,0.1); }

    
    .page-header { background: linear-gradient(135deg, var(--glacier-deep) 0%, #112240 100%); color: #FFF; padding: 40px 0; }
    .breadcrumbs { font-size: 14px; color: rgba(255,255,255,0.6); }
    .breadcrumbs a:hover { color: #FFF; }

    
    .main-layout { display: grid; grid-template-columns: 2.3fr 1fr; gap: 40px; margin: 60px 0; }
    
    
    .article-wrap { background: #FFF; border: 1px solid var(--border-color); border-radius: 16px; padding: 45px; box-shadow: 0 4px 20px rgba(0,0,0,0.02); }
    .article-head { border-bottom: 1px solid var(--border-color); padding-bottom: 30px; margin-bottom: 30px; }
    .article-main-title { font-size: 30px; font-weight: 800; color: var(--dark-navy); line-height: 1.4; margin-bottom: 15px; }
    .article-meta-info { display: flex; flex-wrap: wrap; gap: 20px; font-size: 13px; color: var(--text-muted); }
    .article-meta-info span { display: inline-flex; align-items: center; gap: 6px; }

    
    .article-content { font-size: 16px; color: #4A5568; line-height: 1.8; }
    .article-content p { margin-bottom: 25px; }
    .article-content h2, .article-content h3 { color: var(--dark-navy); margin: 35px 0 15px; font-weight: 700; }
    .article-content h2 { font-size: 24px; border-left: 4px solid var(--primary); padding-left: 12px; }
    .article-content h3 { font-size: 20px; }
    .article-content img { max-width: 100%; height: auto; border-radius: 8px; margin: 20px 0; }
    .article-content ul, .article-content ol { margin-bottom: 25px; padding-left: 20px; }
    .article-content li { margin-bottom: 8px; }

    
    .tag-container { margin-top: 40px; padding-top: 20px; border-top: 1px solid var(--border-color); display: flex; flex-wrap: wrap; gap: 10px; align-items: center; }
    .tag-label { font-size: 14px; font-weight: 700; color: var(--dark-navy); }
    .tag-link-item { background: #EDF2F7; color: var(--text-muted); font-size: 13px; padding: 4px 12px; border-radius: 6px; }
    .tag-link-item:hover { background: var(--primary); color: #FFF; }

    
    .prev-next-nav { display: flex; justify-content: space-between; gap: 20px; margin-top: 40px; padding-top: 25px; border-top: 1px solid var(--border-color); }
    .prev-next-box { flex: 1; display: flex; flex-direction: column; }
    .prev-next-box.next-box { align-items: flex-end; text-align: right; }
    .prev-next-box span { font-size: 12px; color: var(--text-muted); text-transform: uppercase; margin-bottom: 5px; }
    .prev-next-box a { font-size: 15px; font-weight: 700; color: var(--dark-navy); display: -webkit-box; -webkit-line-clamp: 1; -webkit-box-orient: vertical; overflow: hidden; }
    .prev-next-box a:hover { color: var(--primary); }

    
    .related-title { font-size: 22px; font-weight: 800; color: var(--dark-navy); margin: 60px 0 25px; }
    .related-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; }
    .related-card { background: #FFF; border: 1px solid var(--border-color); border-radius: 12px; padding: 20px; transition: 0.3s; }
    .related-card:hover { transform: translateY(-3px); box-shadow: 0 10px 20px rgba(0,0,0,0.03); }
    .related-card h4 { font-size: 16px; font-weight: 700; color: var(--dark-navy); margin-bottom: 10px; line-height: 1.4; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
    .related-card h4 a:hover { color: var(--primary); }
    .related-card p { font-size: 13px; color: var(--text-muted); line-height: 1.5; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }

    
    .sidebar { display: flex; flex-direction: column; gap: 40px; }
    .sidebar-widget { background: #FFF; border: 1px solid var(--border-color); border-radius: 12px; padding: 25px; }
    .widget-title { font-size: 18px; font-weight: 700; color: var(--dark-navy); margin-bottom: 20px; padding-bottom: 10px; border-bottom: 2px solid var(--border-color); position: relative; }
    .widget-title::after { content: ''; display: block; width: 40px; height: 2px; background: var(--primary); position: absolute; bottom: -2px; left: 0; }
    
    .hot-list { display: flex; flex-direction: column; gap: 15px; }
    .hot-item { display: flex; gap: 12px; align-items: flex-start; }
    .hot-num { width: 24px; height: 24px; background: #EDF2F7; color: var(--text-muted); border-radius: 4px; display: flex; align-items: center; justify-content: center; font-size: 12px; font-weight: bold; flex-shrink: 0; }
    .hot-item:nth-child(-n+3) .hot-num { background: var(--primary); color: #FFF; }
    .hot-info h4 { font-size: 14px; font-weight: 600; color: var(--dark-navy); line-height: 1.4; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
    .hot-info h4 a:hover { color: var(--primary); }
    .hot-info span { font-size: 11px; color: var(--text-muted); }

    
    .site-footer { background: #0A192F; color: #A0AEC0; padding: 80px 0 30px; font-size: 14px; border-top: 1px solid rgba(255,255,255,0.1); }
    .footer-grid { display: grid; grid-template-columns: 1.5fr repeat(3, 1fr); gap: 40px; margin-bottom: 50px; }
    .footer-brand .logo { margin-bottom: 20px; }
    .footer-brand p { line-height: 1.6; margin-bottom: 20px; }
    .footer-col h5 { font-size: 16px; font-weight: 700; color: #FFF; margin-bottom: 20px; position: relative; }
    .footer-col h5::after { content: ''; display: block; width: 30px; height: 2px; background: var(--primary); margin-top: 8px; }
    .footer-col ul { list-style: none; }
    .footer-col ul li { margin-bottom: 12px; }
    .footer-col ul li a:hover { color: #FFF; }
    .footer-bottom { border-top: 1px solid rgba(255,255,255,0.05); padding-top: 30px; display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 15px; }
    .footer-bottom p { font-size: 13px; }
    .footer-meta-links { display: flex; gap: 20px; }

    @media (max-width: 1024px) {
      .main-layout { grid-template-columns: 1fr; }
      .sidebar { display: grid; grid-template-columns: repeat(2, 1fr); gap: 30px; }
    }
    @media (max-width: 768px) {
      .desktop-nav { display: none; }
      .nav-toggle { display: block; }
      .article-wrap { padding: 20px; }
      .article-main-title { font-size: 24px; }
      .related-grid { grid-template-columns: 1fr; }
      .prev-next-nav { flex-direction: column; }
      .sidebar { grid-template-columns: 1fr; }
      .footer-grid { grid-template-columns: 1fr; }
    }