:root {
      --primary: rgb(29,78,216);
      --primary-hover: #1e40af;
      --primary-glow: rgba(29, 78, 216, 0.15);
      --tech-blue: #1D7BFF;
      --ice-blue: #38BDF8;
      --silver: #F8FAFC;
      --dark-ink: #0F172A;
      --dark-slate: #1E293B;
      --gray-text: #64748B;
      --border-color: #E2E8F0;
      --card-bg: #FFFFFF;
      --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    }
    * { box-sizing: border-box; margin:0; padding:0; }
    body { font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif; background-color: #F8FAFC; color: var(--dark-ink); line-height:1.6;}
    a { color: inherit; text-decoration: none; transition: var(--transition); }
    .site-header { background-color: rgba(255, 255, 255, 0.95); backdrop-filter: blur(10px); border-bottom: 1px solid var(--border-color); position: sticky; top: 0; z-index: 1000; }
    .header-container { max-width: 1200px; margin: 0 auto; padding: 0 20px; height: 72px; display: flex; align-items: center; justify-content: space-between; }
    .logo { display: inline-flex; align-items: center; gap: 12px; }
    .logo img { display: block; height: 40px; width: auto; max-width: 160px; object-fit: contain; }
    .logo span { font-size: 18px; font-weight: 800; color: var(--dark-ink); white-space: nowrap; }
    .desktop-nav { display: flex; align-items: center; gap: 32px; }
    .desktop-nav a { font-size: 15px; font-weight: 500; color: var(--dark-slate); }
    .desktop-nav a:hover, .desktop-nav a.active { color: var(--primary); }
    .header-actions { display: flex; align-items: center; gap: 16px; }
    .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: var(--transition); border: none; }
    .btn-primary { background-color: var(--primary); color: #FFF; }
    .btn-primary:hover { background-color: var(--primary-hover); box-shadow: 0 4px 12px var(--primary-glow); }
    .mobile-menu-toggle { display: none; background: none; border: none; cursor: pointer; flex-direction: column; gap: 6px; }
    .mobile-menu-toggle span { display: block; width: 24px; height: 2px; background-color: var(--dark-ink); }

    
    .drawer-overlay { position: fixed; top: 0; left: 0; width: 100vw; height: 100vh; background-color: rgba(15, 23, 42, 0.6); opacity: 0; visibility: hidden; z-index: 1001; transition: var(--transition); }
    .drawer-overlay.active { opacity: 1; visibility: visible; }
    .mobile-drawer { position: fixed; top: 0; left: -320px; width: 300px; height: 100vh; background-color: #FFF; z-index: 1002; box-shadow: 4px 0 24px rgba(0, 0, 0, 0.15); display: flex; flex-direction: column; transition: var(--transition); }
    .mobile-drawer.active { left: 0; }
    .drawer-header { padding: 20px; border-bottom: 1px solid var(--border-color); display: flex; align-items: center; justify-content: space-between; }
    .drawer-close { background: none; border: none; font-size: 24px; cursor: pointer; color: var(--gray-text); }
    .drawer-nav { padding: 20px; display: flex; flex-direction: column; gap: 16px; }
    .drawer-nav a { font-size: 16px; font-weight: 600; color: var(--dark-slate); padding: 8px 0; border-bottom: 1px solid #F1F5F9; }
    .drawer-footer { margin-top: auto; padding: 20px; border-top: 1px solid var(--border-color); }
    .btn-drawer { display: block; width: 100%; text-align: center; padding: 12px; background-color: var(--primary); color: #FFF; border-radius: 8px; font-weight: 600; }

    
    .page-banner {
      background: radial-gradient(circle at top, #1e293b, #0f172a);
      color: #FFF;
      padding: 60px 20px;
      text-align: center;
    }
    .page-banner h1 { font-size: 32px; font-weight: 800; margin-bottom: 12px; }
    .breadcrumbs { font-size: 14px; color: #94A3B8; display: flex; justify-content: center; gap: 8px; }
    .breadcrumbs a:hover { color: var(--ice-blue); }

    
    .main-grid {
      max-width: 1200px;
      margin: 50px auto;
      padding: 0 20px;
      display: grid;
      grid-template-columns: 2fr 1fr;
      gap: 40px;
    }

    
    .list-articles-wrap {
      display: flex;
      flex-direction: column;
      gap: 30px;
    }
    
    
    .list-article-item {
      background-color: var(--card-bg);
      border: 1px solid var(--border-color);
      border-radius: 12px;
      overflow: hidden;
      display: grid;
      grid-template-columns: 240px 1fr;
      transition: var(--transition);
    }
    .list-article-item:hover {
      transform: translateY(-3px);
      box-shadow: 0 8px 20px rgba(0,0,0,0.04);
      border-color: var(--primary);
    }
    .list-item-img {
      height: 100%;
      min-height: 180px;
      overflow: hidden;
    }
    .list-item-img img { width: 100%; height: 100%; object-fit: cover; transition: var(--transition); }
    .list-article-item:hover .list-item-img img { transform: scale(1.05); }
    
    .list-item-content {
      padding: 24px;
      display: flex;
      flex-direction: column;
    }
    .list-item-meta { font-size: 12px; color: var(--gray-text); margin-bottom: 8px; display: flex; gap: 15px; }
    .list-item-content h2 { font-size: 20px; font-weight: 700; margin-bottom: 10px; line-height: 1.4; }
    .list-item-content h2 a:hover { color: var(--primary); }
    .list-item-desc { font-size: 14px; color: var(--gray-text); margin-bottom: 15px; line-height: 1.6; }
    .list-item-tags { margin-top: auto; display: flex; gap: 6px; }

    
    .pagination-wrap {
      margin-top: 40px;
      display: flex;
      justify-content: center;
      gap: 8px;
    }
    .pagination-wrap a, .pagination-wrap span {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      min-width: 40px;
      height: 40px;
      border: 1px solid var(--border-color);
      border-radius: 6px;
      font-weight: 600;
      color: var(--dark-slate);
      background-color: #FFF;
    }
    .pagination-wrap a:hover, .pagination-wrap .is-current {
      background-color: var(--primary);
      color: #FFF;
      border-color: var(--primary);
    }

    
    .sidebar { display: flex; flex-direction: column; gap: 40px; }
    .sidebar-widget {
      background-color: var(--card-bg);
      border: 1px solid var(--border-color);
      border-radius: 12px;
      padding: 24px;
    }
    .widget-title { font-size: 16px; font-weight: 700; border-left: 4px solid var(--primary); padding-left: 12px; margin-bottom: 20px; color: var(--dark-ink); }
    
    .hot-list { list-style: none; display: flex; flex-direction: column; gap: 12px; }
    .hot-list li { display: flex; gap: 12px; font-size: 14px; line-height: 1.4; }
    .hot-list li span.rank { font-weight: 700; color: var(--primary); }
    .hot-list li a:hover { color: var(--primary); }

    .tag-cloud { display: flex; flex-wrap: wrap; gap: 8px; }
    .tag-cloud-item { background-color: #F1F5F9; font-size: 12px; padding: 6px 12px; border-radius: 6px; color: var(--dark-slate); }
    .tag-cloud-item:hover { background-color: var(--primary); color: #FFF; }

    
    .site-footer { background-color: #0F172A; color: #94A3B8; border-top: 1px solid rgba(255, 255, 255, 0.05); padding: 60px 0 20px; }
    .footer-container { max-width: 1200px; margin: 0 auto; padding: 0 20px; display: grid; grid-template-columns: 1.5fr 1fr 1fr 1fr; gap: 40px; }
    .footer-brand .logo span { color: #FFF; }
    .footer-brand .brand-desc { margin-top: 16px; font-size: 14px; line-height: 1.6; }
    .footer-container h4 { color: #FFF; font-size: 16px; margin-bottom: 20px; font-weight: 600; }
    .footer-container ul { list-style: none; }
    .footer-container ul li { margin-bottom: 12px; }
    .footer-container ul li a:hover { color: #FFF; }
    .footer-contact p { font-size: 14px; margin-bottom: 12px; }
    .footer-bottom { max-width: 1200px; margin: 40px auto 0; padding: 24px 20px 0; border-top: 1px solid rgba(255, 255, 255, 0.05); text-align: center; font-size: 12px; }

    @media (max-width: 992px) {
      .main-grid { grid-template-columns: 1fr; }
      .list-article-item { grid-template-columns: 180px 1fr; }
    }
    @media (max-width: 768px) {
      .desktop-nav, .header-actions .btn-primary { display: none; }
      .mobile-menu-toggle { display: flex; }
      .list-article-item { grid-template-columns: 1fr; }
      .list-item-img { height: 180px; }
    }