:root {
      --primary: #1D7BFF;
      --primary-hover: #1565C0;
      --bg-dark: #0A1128;
      --bg-card: #111A36;
      --bg-light: #F4F6FC;
      --text-light: #F8FAFC;
      --text-muted: #8E9BB4;
      --text-dark: #1E293B;
      --border-color: rgba(29, 123, 255, 0.15);
      --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, "Helvetica Neue", Arial, sans-serif; background-color: var(--bg-light); color: var(--text-dark); line-height: 1.6; }
    a { color: inherit; text-decoration: none; transition: var(--transition); }
    img { max-width: 100%; height: auto; }
    .container { width: 100%; max-width: 1200px; margin: 0 auto; padding: 0 24px; }
    
    
    header { background-color: var(--bg-dark); border-bottom: 1px solid var(--border-color); position: sticky; top: 0; z-index: 100; height: 72px; display: flex; align-items: center; }
    .header-container { display: flex; justify-content: space-between; align-items: center; width: 100%; }
    .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-light); white-space: nowrap; }
    .nav-desktop { display: flex; align-items: center; gap: 32px; }
    .nav-desktop a { color: var(--text-muted); font-size: 15px; font-weight: 500; }
    .nav-desktop a:hover, .nav-desktop a.active { color: var(--primary); }
    .nav-btn { background-color: var(--primary); color: var(--text-light) !important; padding: 8px 20px; border-radius: 6px; font-weight: 600; }
    .nav-btn:hover { background-color: var(--primary-hover); }
    .menu-toggle { display: none; background: none; border: none; color: var(--text-light); font-size: 24px; cursor: pointer; }

    
    .drawer-overlay { position: fixed; top: 0; left: 0; width: 100%; height: 100%; background: rgba(0,0,0,0.6); z-index: 199; opacity: 0; pointer-events: none; transition: var(--transition); }
    .drawer-overlay.active { opacity: 1; pointer-events: auto; }
    .mobile-drawer { position: fixed; top: 0; left: -300px; width: 300px; height: 100%; background-color: var(--bg-dark); z-index: 200; box-shadow: 4px 0 20px rgba(0,0,0,0.5); transition: var(--transition); padding: 24px; display: flex; flex-direction: column; }
    .mobile-drawer.active { left: 0; }
    .drawer-header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 40px; }
    .drawer-close { background: none; border: none; color: var(--text-light); font-size: 24px; cursor: pointer; }
    .drawer-menu { display: flex; flex-direction: column; gap: 20px; }
    .drawer-menu a { color: var(--text-muted); font-size: 16px; font-weight: 600; padding: 10px 0; border-bottom: 1px solid rgba(255,255,255,0.05); }
    .drawer-menu a:hover { color: var(--primary); }

    
    .page-banner { background: radial-gradient(circle at top, #111e3b 0%, var(--bg-dark) 100%); color: var(--text-light); padding: 60px 0; text-align: center; border-bottom: 1px solid var(--border-color); }
    .breadcrumbs { display: flex; justify-content: center; gap: 8px; font-size: 14px; color: var(--text-muted); margin-bottom: 16px; }
    .breadcrumbs a:hover { color: var(--primary); }
    .page-title { font-size: 32px; font-weight: 800; color: var(--text-light); }

    
    .tags-index-section { padding: 80px 0; background-color: #FFFFFF; }
    .tag-index-container { max-width: 900px; margin: 0 auto; }
    .tags-intro { text-align: center; margin-bottom: 50px; }
    .tags-intro h2 { font-size: 24px; font-weight: 800; color: var(--text-dark); margin-bottom: 12px; }
    .tags-intro p { font-size: 14px; color: #64748B; }
    
    .all-tags-grid { display: flex; flex-wrap: wrap; gap: 16px; justify-content: center; }
    .mega-tag-link { background-color: var(--bg-light); border: 1px solid rgba(0,0,0,0.04); border-radius: 8px; padding: 12px 24px; font-size: 15px; font-weight: 600; color: var(--text-dark); display: flex; align-items: center; gap: 10px; transition: var(--transition); }
    .mega-tag-link:hover { border-color: var(--primary); background-color: #FFFFFF; transform: translateY(-2px); box-shadow: 0 4px 12px rgba(29, 123, 255, 0.1); }
    .mega-tag-count { background-color: var(--primary); color: #FFFFFF; font-size: 11px; font-weight: 700; border-radius: 4px; padding: 2px 8px; }

    
    footer { background-color: var(--bg-dark); color: var(--text-muted); padding: 80px 0 40px 0; border-top: 1px solid var(--border-color); font-size: 14px; }
    .footer-grid { display: grid; grid-template-columns: 2fr repeat(3, 1fr); gap: 40px; margin-bottom: 60px; }
    .footer-brand { display: flex; flex-direction: column; gap: 20px; }
    .footer-brand .logo span { color: var(--text-light); }
    .footer-brand p { font-size: 13px; color: var(--text-muted); line-height: 1.6; }
    .footer-col h3 { font-size: 14px; font-weight: 700; color: var(--text-light); text-transform: uppercase; letter-spacing: 1px; margin-bottom: 24px; }
    .footer-col ul { list-style: none; display: flex; flex-direction: column; gap: 12px; }
    .footer-col ul a { color: var(--text-muted); }
    .footer-col ul a:hover { color: var(--primary); padding-left: 4px; }
    .footer-bottom { border-top: 1px solid rgba(255,255,255,0.05); padding-top: 40px; display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 20px; }
    .footer-links { display: flex; gap: 24px; }
    .footer-links a:hover { color: var(--primary); }

    
    @media (max-width: 1024px) {
      .footer-grid { grid-template-columns: 1fr 1fr; }
    }
    @media (max-width: 768px) {
      .menu-toggle { display: block; }
      .nav-desktop { display: none; }
      .footer-grid { grid-template-columns: 1fr; }
    }