:root {
      --primary: #1D7BFF;
      --primary-hover: #0056C6;
      --primary-glow: rgba(29, 123, 255, 0.15);
      --secondary: rgb(255,149,0);
      --bg-dark: #0A111E;
      --bg-light: #F4F8FC;
      --text-dark: #0F172A;
      --text-light: #64748B;
      --border-color: rgba(29, 123, 255, 0.12);
      --card-bg: #FFFFFF;
    }
    * { margin: 0; padding: 0; box-sizing: border-box; font-family: -apple-system, BlinkMacSystemFont, sans-serif; }
    body { background-color: var(--bg-light); color: var(--text-dark); line-height: 1.8; }
    a { color: inherit; text-decoration: none; transition: all 0.3s; }
    .container { width: 100%; max-width: 1200px; margin: 0 auto; padding: 0 20px; }

    .header { background: rgba(255, 255, 255, 0.9); backdrop-filter: blur(10px); border-bottom: 1px solid var(--border-color); position: sticky; top: 0; z-index: 100; }
    .header-container { display: flex; align-items: center; justify-content: space-between; height: 70px; }
    .logo { display: inline-flex; align-items: center; gap: 12px; }
    .logo img { height: 40px; width: auto; max-width: 160px; object-fit: contain; flex-shrink: 0; }
    .logo span { font-size: 20px; font-weight: 800; color: var(--text-dark); background: linear-gradient(135deg, var(--text-dark) 30%, var(--primary)); -webkit-background-clip: text; -webkit-text-fill-color: transparent; }
    .nav-menu { display: flex; align-items: center; gap: 30px; }
    .nav-link { font-size: 15px; font-weight: 500; color: var(--text-dark); padding: 8px 12px; border-radius: 6px; }
    .nav-link:hover { color: var(--primary); background: var(--primary-glow); }
    .header-actions { display: flex; align-items: center; gap: 15px; }
    .btn { display: inline-flex; align-items: center; justify-content: center; padding: 10px 20px; font-size: 14px; font-weight: 600; border-radius: 8px; cursor: pointer; transition: all 0.3s; border: none; }
    .btn-primary { background: var(--primary); color: #FFF; }
    .menu-toggle { display: none; background: none; border: none; font-size: 24px; cursor: pointer; }

    
    .mobile-drawer { position: fixed; top: 0; left: -280px; width: 280px; height: 100vh; background: #FFFFFF; z-index: 1000; box-shadow: 4px 0 20px rgba(0,0,0,0.1); transition: left 0.3s ease; display: flex; flex-direction: column; padding: 24px; }
    .mobile-drawer.active { left: 0; }
    .drawer-overlay { position: fixed; top: 0; left: 0; width: 100vw; height: 100vh; background: rgba(0,0,0,0.5); z-index: 999; display: none; backdrop-filter: blur(4px); }
    .drawer-overlay.active { display: block; }
    .drawer-header { display: flex; align-items: center; justify-content: space-between; margin-bottom: 30px; }
    .drawer-close { background: none; border: none; font-size: 24px; cursor: pointer; }
    .drawer-nav { display: flex; flex-direction: column; gap: 15px; }
    .drawer-link { font-size: 16px; font-weight: 500; color: var(--text-dark); padding: 10px 14px; border-radius: 8px; }

    
    .breadcrumb-section { background: #FFFFFF; padding: 15px 0; border-bottom: 1px solid var(--border-color); }
    .breadcrumb { font-size: 14px; color: var(--text-light); display: flex; align-items: center; gap: 8px; }

    
    .article-layout { padding: 60px 0; display: grid; grid-template-columns: 2.3fr 0.7fr; gap: 40px; }
    .article-wrap { background: #FFFFFF; border: 1px solid var(--border-color); border-radius: 16px; padding: 40px; }
    .article-header { border-bottom: 1px solid var(--border-color); padding-bottom: 25px; margin-bottom: 30px; }
    .article-title-text { font-size: 28px; font-weight: 800; color: var(--text-dark); line-height: 1.4; margin-bottom: 15px; }
    .article-meta-info { display: flex; flex-wrap: wrap; gap: 20px; font-size: 13px; color: var(--text-light); }
    
    .article-body-content { font-size: 16px; color: #334155; }
    .article-body-content p { margin-bottom: 25px; }
    .article-body-content h2 { font-size: 20px; font-weight: 700; color: var(--text-dark); margin: 35px 0 15px 0; }
    
    
    .article-tags-links { margin-top: 40px; padding-top: 20px; border-top: 1px solid var(--border-color); display: flex; flex-wrap: wrap; gap: 10px; }
    .tag-link-item { background: var(--bg-light); color: var(--primary); padding: 4px 12px; border-radius: 6px; font-size: 13px; font-weight: 500; }
    .tag-link-item:hover { background: var(--primary-glow); }

    
    .prev-next { display: flex; justify-content: space-between; gap: 20px; margin-top: 40px; padding-top: 25px; border-top: 1px solid var(--border-color); }
    .prev-next-item { flex: 1; }
    .prev-next-label { font-size: 12px; color: var(--text-light); margin-bottom: 5px; }
    .prev-next-title { font-size: 14px; font-weight: 600; display: -webkit-box; -webkit-line-clamp: 1; -webkit-box-orient: vertical; overflow: hidden; }

    
    .related-section { margin-top: 60px; }
    .related-title { font-size: 18px; font-weight: 700; margin-bottom: 24px; color: var(--text-dark); }
    .related-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
    .related-card { background: #FFFFFF; border: 1px solid var(--border-color); border-radius: 12px; overflow: hidden; }
    .related-card img { height: 140px; width: 100%; object-fit: cover; }
    .related-body { padding: 15px; }
    .related-card-title { font-size: 14px; font-weight: 600; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; line-height: 1.4; }

    
    .sidebar { display: flex; flex-direction: column; gap: 30px; }
    .sidebar-widget { background: #FFFFFF; border: 1px solid var(--border-color); border-radius: 16px; padding: 24px; }
    .widget-title { font-size: 16px; font-weight: 700; color: var(--text-dark); margin-bottom: 20px; padding-bottom: 10px; border-bottom: 2px solid var(--primary); display: inline-block; }
    .hot-article-list { display: flex; flex-direction: column; gap: 15px; }
    .hot-article-item { display: flex; gap: 12px; }
    .hot-article-img { width: 70px; height: 50px; border-radius: 6px; overflow: hidden; flex-shrink: 0; background: var(--silver); }
    .hot-article-img img { width: 100%; height: 100%; object-fit: cover; }
    .hot-article-info { display: flex; flex-direction: column; justify-content: space-between; }
    .hot-article-title { font-size: 13px; font-weight: 600; color: var(--text-dark); line-height: 1.3; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }

    
    .footer { background: #0B132B; color: #94A3B8; padding: 80px 0 30px 0; border-top: 1px solid rgba(255,255,255,0.05); }
    .footer-grid { display: grid; grid-template-columns: 1.5fr repeat(3, 1fr); gap: 40px; margin-bottom: 60px; }
    .footer-brand .logo span { background: linear-gradient(135deg, #FFF 30%, #38BDF8); -webkit-background-clip: text; -webkit-text-fill-color: transparent; }
    .footer-desc { margin-top: 20px; font-size: 14px; line-height: 1.6; }
    .footer-title { font-size: 16px; font-weight: 600; color: #FFFFFF; margin-bottom: 24px; }
    .footer-links { list-style: none; }
    .footer-links li { margin-bottom: 12px; }
    .footer-links a { font-size: 14px; }
    .footer-links a:hover { color: #FFFFFF; padding-left: 5px; }
    .footer-bottom { border-top: 1px solid rgba(255,255,255,0.05); padding-top: 30px; display: flex; justify-content: space-between; align-items: center; font-size: 13px; }

    @media (max-width: 1024px) {
      .article-layout { grid-template-columns: 1fr; }
    }
    @media (max-width: 768px) {
      .nav-menu, .header-actions .btn:not(.btn-primary) { display: none; }
      .menu-toggle { display: block; }
      .article-wrap { padding: 24px; }
      .related-grid { grid-template-columns: 1fr; }
    }