:root {
      --primary-color: rgb(239, 68, 68);
      --primary-hover: rgb(220, 38, 38);
      --secondary-color: #1D7BFF;
      --bg-dark: #0B0F19;
      --bg-light: #F8FAFC;
      --text-dark: #0F172A;
      --text-light: #64748B;
      --border-color: #E2E8F0;
      --card-shadow: 0 10px 30px rgba(0, 0, 0, 0.05);
      --transition: all 0.3s ease;
    }
    * { box-sizing: border-box; margin: 0; padding: 0; }
    body { font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif; background: #FFF; color: var(--text-dark); line-height: 1.6; }
    a { color: inherit; text-decoration: none; transition: var(--transition); }
    img { max-width: 100%; height: auto; }
    .container { max-width: 1200px; margin: 0 auto; padding: 0 20px; }

    
    .header { background: #FFF; border-bottom: 1px solid var(--border-color); position: sticky; top: 0; z-index: 1000; height: 70px; 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; 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: 18px; font-weight: 800; line-height: 1; color: var(--text-dark); white-space: nowrap; }
    .nav-menu { display: flex; gap: 30px; align-items: center; }
    .nav-menu a { font-weight: 500; color: var(--text-dark); font-size: 15px; }
    .nav-menu a:hover { color: var(--primary-color); }
    .header-btn { background: var(--primary-color); color: #FFF !important; padding: 8px 20px; border-radius: 6px; font-weight: 600; }
    .header-btn:hover { background: var(--primary-hover); }
    .menu-toggle { display: none; background: none; border: none; font-size: 24px; cursor: pointer; color: var(--text-dark); }

    
    .drawer-overlay { position: fixed; top: 0; left: 0; width: 100%; height: 100%; background: rgba(0,0,0,0.5); z-index: 2000; opacity: 0; pointer-events: none; transition: var(--transition); }
    .drawer-overlay.open { opacity: 1; pointer-events: auto; }
    .drawer { position: fixed; top: 0; left: -280px; width: 280px; height: 100%; background: #FFF; z-index: 2001; transition: var(--transition); padding: 30px 20px; display: flex; flex-direction: column; gap: 30px; box-shadow: var(--card-shadow); }
    .drawer.open { left: 0; }
    .drawer-header { display: flex; justify-content: space-between; align-items: center; }
    .drawer-close { background: none; border: none; font-size: 24px; cursor: pointer; color: var(--text-dark); }
    .drawer-nav { display: flex; flex-direction: column; gap: 20px; }
    .drawer-nav a { font-size: 16px; font-weight: 500; color: var(--text-dark); padding: 10px 0; border-bottom: 1px solid var(--border-color); }

    
    .inner-banner { background: var(--bg-dark); color: #FFF; padding: 40px 0; border-bottom: 1px solid rgba(255, 255, 255, 0.1); }
    .breadcrumbs { display: flex; gap: 8px; font-size: 14px; color: #94A3B8; flex-wrap: wrap; margin-top: 8px; }
    .breadcrumbs a { color: #FFF; }
    .breadcrumbs a:hover { color: var(--primary-color); }

    
    .article-main-grid { display: grid; grid-template-columns: 2.5fr 1fr; gap: 40px; padding: 60px 0; }
    .article-content-box { background: #FFF; }
    .article-header { border-bottom: 1px solid var(--border-color); padding-bottom: 30px; margin-bottom: 30px; }
    .article-header h1 { font-size: 32px; font-weight: 800; line-height: 1.3; color: var(--text-dark); margin-bottom: 20px; }
    .article-meta-info { display: flex; flex-wrap: wrap; gap: 20px; font-size: 14px; color: var(--text-light); }
    .article-meta-info span strong { color: var(--text-dark); }

    
    .article-body { font-size: 16px; color: var(--text-dark); line-height: 1.8; }
    .article-body p { margin-bottom: 24px; }
    .article-body h2 { font-size: 24px; font-weight: 700; margin: 40px 0 20px; color: var(--text-dark); border-left: 5px solid var(--primary-color); padding-left: 15px; }
    .article-body h3 { font-size: 20px; font-weight: 700; margin: 30px 0 15px; color: var(--text-dark); }
    .article-body img { border-radius: 10px; margin: 20px 0; box-shadow: var(--card-shadow); display: block; max-width: 100%; }
    .article-body ul, .article-body ol { margin: 0 0 24px 20px; }
    .article-body li { margin-bottom: 10px; }

    
    .prev-next-links { display: flex; justify-content: space-between; border-top: 1px solid var(--border-color); border-bottom: 1px solid var(--border-color); padding: 24px 0; margin: 50px 0; gap: 20px; }
    .prev-link, .next-link { flex: 1; display: flex; flex-direction: column; }
    .prev-link { text-align: left; }
    .next-link { text-align: right; }
    .link-label { font-size: 12px; color: var(--text-light); font-weight: 600; margin-bottom: 4px; }
    .link-title { font-weight: 700; font-size: 14px; color: var(--text-dark); }
    .link-title:hover { color: var(--primary-color); }

    
    .related-section { margin-top: 60px; }
    .related-title { font-size: 22px; font-weight: 800; margin-bottom: 24px; }
    .related-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }
    .related-item { background: #FFF; border: 1px solid var(--border-color); border-radius: 8px; overflow: hidden; display: flex; gap: 16px; padding: 12px; transition: var(--transition); }
    .related-item:hover { transform: translateY(-2px); border-color: var(--primary-color); }
    .related-img { width: 100px; height: 75px; object-fit: cover; border-radius: 4px; flex-shrink: 0; }
    .related-info { display: flex; flex-direction: column; justify-content: center; }
    .related-info h4 { font-size: 14px; font-weight: 700; margin-bottom: 4px; line-height: 1.4; }
    .related-info p { font-size: 12px; color: var(--text-light); }

    
    .sidebar { display: flex; flex-direction: column; gap: 30px; }
    .sidebar-widget { background: var(--bg-light); border: 1px solid var(--border-color); border-radius: 12px; padding: 24px; }
    .widget-title { font-size: 18px; font-weight: 700; margin-bottom: 20px; border-left: 4px solid var(--primary-color); padding-left: 12px; }

    
    .footer { background: var(--bg-dark); color: #94A3B8; padding: 80px 0 30px; border-top: 1px solid rgba(255, 255, 255, 0.1); 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: #FFF; }
    .footer-brand p { line-height: 1.6; }
    .footer-col h4 { color: #FFF; font-size: 16px; font-weight: 700; margin-bottom: 20px; }
    .footer-links { display: flex; flex-direction: column; gap: 12px; }
    .footer-links a:hover { color: #FFF; }
    .footer-bottom { border-top: 1px solid rgba(255, 255, 255, 0.1); padding-top: 30px; display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 20px; }
    .footer-copyright { font-size: 13px; }
    .footer-meta-links { display: flex; gap: 20px; font-size: 13px; }

    @media (max-width: 992px) {
      .article-main-grid { grid-template-columns: 1fr; }
      .footer-grid { grid-template-columns: 1fr 1fr; }
    }
    @media (max-width: 768px) {
      .nav-menu { display: none; }
      .menu-toggle { display: block; }
      .related-grid { grid-template-columns: 1fr; }
      .footer-grid { grid-template-columns: 1fr; }
    }