:root {
      --theme-color: rgb(8,145,178);
      --theme-hover: rgb(6,116,143);
      --bg-deep: #070c19;
      --bg-glacier: #0f1c3f;
      --text-light: #f8fafc;
      --text-gray: #94a3b8;
      --text-dark: #0f172a;
      --text-muted: #64748b;
      --border-color: rgba(8,145,178, 0.2);
      --shadow-sm: 0 2px 8px rgba(0,0,0,0.1);
      --shadow-md: 0 10px 25px rgba(0,0,0,0.15);
      --max-width: 1200px;
    }
    * { box-sizing: border-box; margin: 0; padding: 0; }
    body { font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif; line-height: 1.6; color: var(--text-dark); background: #f8fafc; }
    a { text-decoration: none; color: inherit; transition: all 0.3s ease; }
    ul { list-style: none; }
    .container { max-width: var(--max-width); margin: 0 auto; padding: 0 20px; width: 100%; }

    
    header { background: var(--bg-deep); 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: 72px; }
    .logo { display: inline-flex; align-items: center; gap: 12px; text-decoration: none; }
    .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: var(--text-light); white-space: nowrap; letter-spacing: 0.5px; }
    .nav-desktop { display: flex; align-items: center; gap: 32px; }
    .nav-desktop a { color: var(--text-gray); font-size: 15px; font-weight: 500; }
    .nav-desktop a:hover, .nav-desktop a.active { color: var(--theme-color); }
    .nav-btn { background: var(--theme-color); color: var(--text-light) !important; padding: 8px 20px; border-radius: 6px; font-weight: 600; }
    .nav-btn:hover { background: var(--theme-hover); }
    .nav-toggle { display: none; background: none; border: none; color: var(--text-light); font-size: 24px; cursor: pointer; }

    
    .drawer-overlay { display: none; position: fixed; top: 0; left: 0; width: 100%; height: 100%; background: rgba(0,0,0,0.6); z-index: 998; backdrop-filter: blur(4px); }
    .drawer { position: fixed; top: 0; left: -280px; width: 280px; height: 100%; background: var(--bg-deep); z-index: 999; box-shadow: var(--shadow-md); transition: left 0.3s ease; display: flex; flex-direction: column; padding: 24px; }
    .drawer.active { left: 0; }
    .drawer-overlay.active { display: block; }
    .drawer-header { display: flex; align-items: center; justify-content: space-between; 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-gray); font-size: 16px; font-weight: 500; padding: 8px 0; border-bottom: 1px solid rgba(255,255,255,0.05); }
    .drawer-menu a:hover { color: var(--theme-color); }

    
    .breadcrumb-section { background: #f1f5f9; padding: 15px 0; border-bottom: 1px solid #e2e8f0; font-size: 14px; }
    .breadcrumbs { display: flex; align-items: center; gap: 8px; color: var(--text-muted); }
    .breadcrumbs a:hover { color: var(--theme-color); }

    
    .main-section { padding: 60px 0; }
    .article-grid { display: grid; grid-template-columns: 2.5fr 1fr; gap: 40px; }
    
    .article-wrapper { background: #fff; border: 1px solid #e2e8f0; border-radius: 8px; padding: 40px; }
    .article-header { border-bottom: 1px solid #e2e8f0; padding-bottom: 24px; margin-bottom: 30px; }
    .article-title { font-size: 28px; font-weight: 800; color: var(--text-dark); line-height: 1.35; margin-bottom: 16px; }
    .article-meta { display: flex; gap: 20px; font-size: 13px; color: var(--text-muted); flex-wrap: wrap; }
    .article-body { font-size: 16px; line-height: 1.8; color: var(--text-dark); margin-bottom: 40px; }
    .article-body p { margin-bottom: 24px; }
    .article-body img { max-width: 100%; height: auto; border-radius: 8px; margin: 20px 0; }
    
    .article-tags-sec { border-top: 1px solid #e2e8f0; padding-top: 20px; margin-bottom: 30px; display: flex; gap: 10px; align-items: center; flex-wrap: wrap; }
    .tag-link { font-size: 13px; background: #f1f5f9; color: var(--theme-color); padding: 4px 12px; border-radius: 4px; border: 1px solid #e2e8f0; }
    .tag-link:hover { background: var(--theme-color); color: #fff; }

    
    .prev-next { display: flex; justify-content: space-between; border-top: 1px solid #e2e8f0; border-bottom: 1px solid #e2e8f0; padding: 20px 0; margin-bottom: 40px; gap: 20px; }
    .prev-next a { max-width: 48%; font-size: 14px; color: var(--text-dark); font-weight: 600; display: inline-flex; flex-direction: column; gap: 4px; }
    .prev-next a span { font-size: 12px; color: var(--text-muted); font-weight: normal; }
    .prev-next a:hover { color: var(--theme-color); }

    
    .like-title { font-size: 20px; font-weight: 800; margin-bottom: 20px; color: var(--text-dark); }
    .like-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
    .like-card { background: #f8fafc; border: 1px solid #e2e8f0; border-radius: 6px; padding: 16px; display: flex; flex-direction: column; justify-content: space-between; }
    .like-card h4 { font-size: 14px; font-weight: 700; color: var(--text-dark); margin-bottom: 8px; line-height: 1.4; }
    .like-card span { font-size: 11px; color: var(--text-muted); }

    
    .sidebar-block { background: #fff; border: 1px solid #e2e8f0; border-radius: 8px; padding: 24px; margin-bottom: 24px; }
    .sidebar-title { font-size: 16px; font-weight: 800; border-left: 4px solid var(--theme-color); padding-left: 10px; margin-bottom: 16px; color: var(--text-dark); }
    .hot-list { display: flex; flex-direction: column; gap: 14px; }
    .hot-item { display: flex; align-items: flex-start; gap: 12px; }
    .hot-num { width: 24px; height: 24px; background: #cbd5e1; color: var(--text-muted); border-radius: 4px; font-weight: 800; display: flex; align-items: center; justify-content: center; flex-shrink: 0; font-size: 12px; }
    .hot-item:nth-child(-n+3) .hot-num { background: var(--theme-color); color: #fff; }
    .hot-text h4 { font-size: 13px; font-weight: 600; line-height: 1.4; color: var(--text-dark); margin-bottom: 4px; }
    .hot-text span { font-size: 11px; color: var(--text-muted); }

    
    footer { background: var(--bg-deep); color: var(--text-gray); padding: 60px 0 30px; 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: 40px; }
    .footer-intro p { margin-top: 16px; line-height: 1.6; font-size: 13px; }
    .footer-title { font-size: 15px; font-weight: 700; color: var(--text-light); margin-bottom: 18px; }
    .footer-links { display: flex; flex-direction: column; gap: 10px; }
    .footer-links a { font-size: 13px; }
    .footer-links a:hover { color: var(--theme-color); }
    .footer-contact { display: flex; flex-direction: column; gap: 8px; font-size: 13px; }
    .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: 12px; }
    .footer-seo-links { display: flex; gap: 16px; }
    .footer-seo-links a { color: var(--text-muted); }
    .footer-seo-links a:hover { color: var(--theme-color); }

    @media (max-width: 968px) {
      .article-grid { grid-template-columns: 1fr; }
      .like-grid { grid-template-columns: 1fr; }
    }
    @media (max-width: 768px) {
      .nav-toggle { display: block; }
      .nav-desktop { display: none; }
      .article-wrapper { padding: 24px; }
      .article-title { font-size: 22px; }
      .footer-grid { grid-template-columns: 1fr; gap: 30px; }
      .footer-bottom { flex-direction: column; gap: 15px; text-align: center; }
    }