:root {
      --primary: #1D7BFF;
      --accent: rgb(255,121,198);
      --dark-ink: #0B0F19;
      --dark-blue: #111827;
      --text-white: #F8FAFC;
      --text-gray: #94A3B8;
      --border: rgba(255, 255, 255, 0.1);
    }
    * { box-sizing: border-box; margin: 0; padding: 0; }
    body {
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
      background-color: #030712;
      color: var(--text-white);
      line-height: 1.6;
    }
    a { color: inherit; text-decoration: none; transition: all 0.3s; }
    
    
    .site-header { position: sticky; top: 0; z-index: 1000; background: rgba(11, 15, 25, 0.85); backdrop-filter: blur(12px); border-bottom: 1px solid var(--border); }
    .header-container { max-width: 1200px; margin: 0 auto; padding: 0 20px; height: 70px; 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; flex-shrink: 0; }
    .logo span { display: inline-block; font-size: 18px; font-weight: 800; line-height: 1; color: var(--text-white); }
    .desktop-nav { display: flex; gap: 30px; }
    .desktop-nav a { font-size: 15px; font-weight: 500; color: var(--text-gray); }
    .desktop-nav a:hover { color: var(--primary); }
    .header-actions { display: flex; align-items: center; gap: 15px; }
    .nav-btn-primary { background: linear-gradient(135deg, var(--primary) 0%, #10B981 100%); color: #fff; padding: 8px 18px; border-radius: 6px; font-size: 14px; font-weight: 600; }
    .menu-toggle { display: none; background: none; border: none; cursor: pointer; flex-direction: column; gap: 6px; }
    .menu-toggle span { display: block; width: 25px; height: 2px; background: var(--text-white); }
    
    .mobile-drawer-overlay { position: fixed; top: 0; left: 0; right: 0; bottom: 0; background: rgba(0,0,0,0.6); z-index: 1999; display: none; }
    .mobile-drawer-overlay.active { display: block; }
    .mobile-drawer { position: fixed; top: 0; left: -280px; width: 280px; height: 100%; background: var(--dark-ink); z-index: 2000; transition: left 0.3s ease; border-right: 1px solid var(--border); display: flex; flex-direction: column; }
    .mobile-drawer.active { left: 0; }
    .drawer-header { padding: 20px; display: flex; align-items: center; justify-content: space-between; border-bottom: 1px solid var(--border); }
    .drawer-close { background: none; border: none; color: var(--text-gray); font-size: 24px; cursor: pointer; }
    .drawer-content { flex: 1; padding: 20px; overflow-y: auto; }
    .drawer-nav { display: flex; flex-direction: column; gap: 20px; }
    .drawer-nav a { font-size: 16px; color: var(--text-white); }
    .drawer-footer { padding: 20px; border-top: 1px solid var(--border); }
    .drawer-btn { display: block; text-align: center; background: var(--primary); padding: 10px; border-radius: 4px; font-size: 14px; color: white; }

    
    .breadcrumb-section { background: var(--dark-blue); border-bottom: 1px solid var(--border); padding: 15px 20px; }
    .breadcrumb-container { max-width: 1200px; margin: 0 auto; font-size: 14px; color: var(--text-gray); }
    .breadcrumb-container a { color: var(--primary); }
    .breadcrumb-container span { margin: 0 8px; }

    
    .article-section { padding: 60px 20px; }
    .article-container { max-width: 1200px; margin: 0 auto; }
    
    .grid-layout { display: grid; grid-template-columns: 2.5fr 1fr; gap: 40px; }
    
    .article-main { background: var(--dark-ink); border: 1px solid var(--border); border-radius: 12px; padding: 40px; }
    
    .article-header { margin-bottom: 30px; border-bottom: 1px solid var(--border); padding-bottom: 30px; }
    .article-header h1 { font-size: 32px; font-weight: 800; line-height: 1.3; margin-bottom: 20px; }
    
    .article-meta-info { display: flex; gap: 20px; flex-wrap: wrap; font-size: 14px; color: var(--text-gray); }
    .article-meta-info span { display: flex; align-items: center; gap: 5px; }

    .article-body-content { font-size: 16px; line-height: 1.8; color: #E2E8F0; }
    .article-body-content p { margin-bottom: 20px; }
    .article-body-content h2, .article-body-content h3 { color: var(--primary); margin: 35px 0 15px 0; }
    .article-body-content img { max-width: 100%; height: auto; border-radius: 8px; margin: 20px 0; }
    
    .article-tags-links { margin-top: 40px; border-top: 1px solid var(--border); padding-top: 20px; }
    .article-tags-links a { display: inline-block; background: rgba(29, 123, 255, 0.1); border: 1px solid rgba(29,123,255,0.2); padding: 5px 12px; border-radius: 4px; font-size: 13px; color: var(--primary); margin-right: 10px; }

    
    .prev-next-links { display: flex; justify-content: space-between; margin-top: 40px; padding-top: 20px; border-top: 1px solid var(--border); gap: 20px; }
    .prev-next-links a { display: block; flex: 1; background: rgba(255,255,255,0.02); border: 1px solid var(--border); padding: 15px; border-radius: 8px; }
    .prev-next-links a:hover { border-color: var(--primary); }
    .prev-next-links span { display: block; font-size: 12px; color: var(--text-gray); margin-bottom: 5px; }

    
    .related-section { margin-top: 60px; }
    .related-title { font-size: 22px; margin-bottom: 25px; border-left: 3px solid var(--accent); padding-left: 10px; }
    .related-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
    .related-card { background: var(--dark-ink); border: 1px solid var(--border); border-radius: 8px; overflow: hidden; }
    .related-card-thumb { height: 130px; background-size: cover; background-position: center; }
    .related-card-body { padding: 15px; }
    .related-card-title { font-size: 15px; font-weight: 700; line-height: 1.4; }

    
    .sidebar-card { background: var(--dark-ink); border: 1px solid var(--border); border-radius: 12px; padding: 25px; margin-bottom: 25px; }
    .sidebar-title { font-size: 18px; font-weight: 700; margin-bottom: 20px; border-left: 3px solid var(--primary); padding-left: 10px; }
    .hot-list { list-style: none; }
    .hot-item { display: flex; gap: 12px; margin-bottom: 15px; border-bottom: 1px solid rgba(255,255,255,0.05); padding-bottom: 15px; }
    .hot-num { width: 24px; height: 24px; background: rgba(255,255,255,0.1); border-radius: 50%; display: flex; align-items: center; justify-content: center; font-size: 12px; font-weight: 700; flex-shrink: 0; }
    .hot-item:nth-child(1) .hot-num { background: var(--accent); color: #000; }
    .hot-item:nth-child(2) .hot-num { background: var(--primary); }
    .hot-item:nth-child(3) .hot-num { background: #10B981; }
    .hot-detail h5 { font-size: 14px; font-weight: 600; line-height: 1.4; }
    .hot-detail span { font-size: 12px; color: var(--text-gray); }

    
    .site-footer { background: #030712; border-top: 1px solid var(--border); padding: 60px 20px 20px 20px; }
    .footer-container { max-width: 1200px; margin: 0 auto; display: grid; grid-template-columns: 1.5fr repeat(3, 1fr); gap: 40px; padding-bottom: 40px; border-bottom: 1px solid var(--border); }
    .footer-brand p { color: var(--text-gray); font-size: 14px; margin-top: 15px; line-height: 1.6; }
    .footer-col h4 { font-size: 16px; margin-bottom: 20px; color: var(--text-white); }
    .footer-col ul { list-style: none; }
    .footer-col ul li { margin-bottom: 10px; }
    .footer-col ul li a { color: var(--text-gray); font-size: 14px; }
    .footer-col ul li a:hover { color: var(--primary); }
    .footer-bottom { padding-top: 20px; }
    .footer-bottom-container { max-width: 1200px; margin: 0 auto; display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 15px; font-size: 13px; color: var(--text-gray); }
    .footer-legal a { margin-left: 20px; }

    @media (max-width: 991px) {
      .grid-layout { grid-template-columns: 1fr; }
      .related-grid { grid-template-columns: 1fr; }
      .footer-container { grid-template-columns: 1fr; }
      .desktop-nav { display: none; }
      .menu-toggle { display: flex; }
    }