:root {
      --primary: rgb(12,113,195);
      --primary-hover: rgba(12,113,195,0.85);
      --primary-light: rgba(12,113,195,0.1);
      --dark-bg: #060b1a;
      --card-bg: #0d1527;
      --text-main: #f1f5f9;
      --text-muted: #94a3b8;
      --border-color: rgba(255,255,255,0.08);
      --white: #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: var(--dark-bg);
      color: var(--text-main);
      line-height: 1.6;
    }
    a { color: inherit; text-decoration: none; transition: var(--transition); }
    
    
    .header {
      position: fixed;
      top: 0;
      left: 0;
      width: 100%;
      z-index: 100;
      background: rgba(6, 11, 26, 0.85);
      backdrop-filter: blur(12px);
      border-bottom: 1px solid var(--border-color);
    }
    .header-container {
      max-width: 1200px;
      margin: 0 auto;
      padding: 16px 20px;
      display: flex;
      align-items: center;
      justify-content: space-between;
    }
    .logo {
      display: inline-flex;
      align-items: center;
      gap: 12px;
    }
    .logo img {
      display: block;
      height: 36px;
      width: auto;
      max-width: 160px;
      object-fit: contain;
    }
    .logo span {
      font-size: 18px;
      font-weight: 800;
      color: var(--white);
    }
    .nav-list { display: flex; align-items: center; gap: 32px; }
    .nav-list a { font-size: 15px; font-weight: 500; color: var(--text-muted); }
    .nav-list a:hover { 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;
      border-radius: 6px;
      font-size: 14px;
      font-weight: 600;
      cursor: pointer;
      transition: var(--transition);
      border: none;
    }
    .btn-primary { background: var(--primary); color: var(--white); }
    .btn-primary:hover { background: var(--primary-hover); }
    .btn-outline { background: transparent; border: 1px solid var(--border-color); color: var(--white); }
    .menu-toggle { display: none; background: none; border: none; color: var(--white); font-size: 24px; cursor: pointer; }

    
    .drawer-overlay { position: fixed; inset: 0; background: rgba(0,0,0,0.7); opacity: 0; pointer-events: none; transition: var(--transition); z-index: 999; }
    .drawer { position: fixed; left: -300px; top: 0; width: 300px; height: 100vh; background: var(--dark-bg); box-shadow: 4px 0 24px rgba(0,0,0,0.5); z-index: 1000; transition: var(--transition); padding: 24px; display: flex; flex-direction: column; gap: 32px; }
    body.drawer-open .drawer { transform: translateX(300px); }
    body.drawer-open .drawer-overlay { opacity: 1; pointer-events: auto; }
    .drawer-header { display: flex; align-items: center; justify-content: space-between; }
    .drawer-close { background: none; border: none; color: var(--white); font-size: 24px; cursor: pointer; }
    .drawer-nav { display: flex; flex-direction: column; gap: 20px; }
    .drawer-nav a { font-size: 16px; font-weight: 500; padding: 10px 0; border-bottom: 1px solid var(--border-color); }

    
    .page-hero {
      padding: 140px 0 40px;
      background: radial-gradient(circle at 50% 0%, rgba(12,113,195,0.1) 0%, rgba(6,11,26,0) 60%);
      border-bottom: 1px solid var(--border-color);
    }
    .container { max-width: 1200px; margin: 0 auto; padding: 0 20px; }
    .breadcrumbs {
      font-size: 14px;
      color: var(--text-muted);
      margin-bottom: 12px;
    }
    .breadcrumbs a:hover { color: var(--primary); }

    
    .article-layout {
      display: grid;
      grid-template-columns: 2.5fr 1fr;
      gap: 40px;
      padding: 60px 0;
    }
    .article-main {
      background: var(--card-bg);
      border: 1px solid var(--border-color);
      border-radius: 16px;
      padding: 40px;
    }
    .article-header {
      margin-bottom: 30px;
      padding-bottom: 24px;
      border-bottom: 1px solid var(--border-color);
    }
    .article-title-h1 {
      font-size: 32px;
      font-weight: 800;
      color: var(--white);
      line-height: 1.3;
      margin-bottom: 20px;
    }
    .article-meta-info {
      display: flex;
      flex-wrap: wrap;
      gap: 20px;
      font-size: 14px;
      color: var(--text-muted);
    }
    .meta-item { display: inline-flex; align-items: center; gap: 6px; }

    
    .article-body-text {
      font-size: 16px;
      line-height: 1.8;
      color: #cbd5e1;
    }
    .article-body-text p { margin-bottom: 24px; }
    .article-body-text h2, .article-body-text h3 {
      color: var(--white);
      margin: 40px 0 20px;
      font-weight: 700;
    }
    .article-body-text h2 { font-size: 24px; }
    .article-body-text h3 { font-size: 20px; }
    .article-body-text img {
      border-radius: 8px;
      margin: 20px 0;
      border: 1px solid var(--border-color);
    }

    
    .tag-cloud-row {
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
      margin: 40px 0 30px;
      padding-top: 20px;
      border-top: 1px solid var(--border-color);
    }
    .article-tag-pill {
      background: var(--primary-light);
      border: 1px solid rgba(12,113,195,0.3);
      color: var(--primary);
      font-size: 13px;
      font-weight: 600;
      padding: 6px 14px;
      border-radius: 20px;
    }
    .article-tag-pill:hover {
      background: var(--primary);
      color: var(--white);
    }

    
    .prev-next-box {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 20px;
      padding-top: 30px;
      border-top: 1px solid var(--border-color);
    }
    .nav-card {
      background: rgba(255,255,255,0.01);
      border: 1px solid var(--border-color);
      border-radius: 8px;
      padding: 16px;
    }
    .nav-card:hover { border-color: var(--primary); }
    .nav-label { font-size: 12px; color: var(--text-muted); margin-bottom: 6px; }
    .nav-title { font-size: 14px; font-weight: 700; color: var(--white); display: block; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

    
    .related-section {
      margin-top: 60px;
    }
    .related-title {
      font-size: 22px;
      font-weight: 800;
      color: var(--white);
      margin-bottom: 24px;
    }
    .related-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
      gap: 20px;
    }
    .related-card {
      background: var(--card-bg);
      border: 1px solid var(--border-color);
      border-radius: 12px;
      padding: 24px;
    }
    .related-card:hover { border-color: var(--primary); }
    .related-date { font-size: 12px; color: var(--text-muted); margin-bottom: 8px; }
    .related-card-title { font-size: 16px; font-weight: 700; color: var(--white); line-height: 1.4; }

    
    .sidebar { display: flex; flex-direction: column; gap: 40px; }
    .sidebar-widget { background: var(--card-bg); border: 1px solid var(--border-color); border-radius: 12px; padding: 24px; }
    .widget-title { font-size: 18px; font-weight: 700; color: var(--white); margin-bottom: 20px; padding-bottom: 10px; border-bottom: 2px solid var(--primary); }
    .sidebar-list { display: flex; flex-direction: column; gap: 16px; }
    .sidebar-item-link { display: flex; gap: 12px; font-size: 14px; }
    .sidebar-item-link:hover .sidebar-item-title { color: var(--primary); }
    .sidebar-item-num { font-size: 14px; font-weight: 800; color: var(--primary); opacity: 0.7; }
    .sidebar-item-title { color: var(--text-main); font-weight: 600; line-height: 1.4; }

    
    .footer { background: #03060d; border-top: 1px solid var(--border-color); padding: 80px 0 30px; color: var(--text-muted); }
    .footer-container { max-width: 1200px; margin: 0 auto; padding: 0 20px; display: grid; grid-template-columns: 2fr 1fr 1fr 1.5fr; gap: 40px; margin-bottom: 60px; }
    .footer-logo-area { display: flex; flex-direction: column; gap: 20px; }
    .footer-desc { font-size: 14px; line-height: 1.8; }
    .footer-title { color: var(--white); font-size: 16px; font-weight: 700; margin-bottom: 20px; }
    .footer-links { display: flex; flex-direction: column; gap: 12px; }
    .footer-links a { font-size: 14px; }
    .footer-links a:hover { color: var(--primary); }
    .risk-warning { background: rgba(239,68,68,0.05); border: 1px solid rgba(239,68,68,0.15); border-radius: 8px; padding: 20px; margin-bottom: 40px; font-size: 12px; line-height: 1.8; }
    .footer-bottom { border-top: 1px solid var(--border-color); padding-top: 30px; display: flex; justify-content: space-between; flex-wrap: wrap; gap: 20px; font-size: 13px; }

    @media (max-width: 992px) {
      .article-layout { grid-template-columns: 1fr; }
      .footer-container { grid-template-columns: 1fr 1fr; }
    }
    @media (max-width: 768px) {
      .nav-list, .header-actions .btn-outline { display: none; }
      .menu-toggle { display: block; }
      .article-main { padding: 24px; }
      .article-title-h1 { font-size: 24px; }
      .prev-next-box { grid-template-columns: 1fr; }
      .footer-container { grid-template-columns: 1fr; }
    }