:root {
      --primary-color: rgb(90,200,250);
      --primary-dark: #1D7BFF;
      --deep-ocean: #0A1128;
      --glacier-blue: #E8F4FD;
      --silver-white: #F4F7F6;
      --text-main: #1E293B;
      --text-muted: #64748B;
      --border-color: #E2E8F0;
      --shadow-sm: 0 2px 8px rgba(0,0,0,0.05);
      --shadow-md: 0 8px 24px rgba(0,0,0,0.08);
    }
    * { box-sizing: border-box; margin: 0; padding: 0; }
    body {
      font-family: -apple-system, BlinkMacSystemFont, sans-serif;
      color: var(--text-main);
      background-color: var(--silver-white);
      line-height: 1.6;
    }
    a { text-decoration: none; color: inherit; transition: all 0.3s; }
    img { max-width: 100%; height: auto; }

    
    .header {
      background: rgba(10, 17, 40, 0.95);
      backdrop-filter: blur(10px);
      border-bottom: 1px solid rgba(255, 255, 255, 0.1);
      position: fixed;
      top: 0; left: 0; width: 100%; z-index: 1000;
    }
    .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 { height: 40px; width: auto; max-width: 160px; object-fit: contain; }
    .logo span { font-size: 20px; font-weight: 800; color: #fff; }
    .nav-menu { display: flex; align-items: center; gap: 30px; }
    .nav-menu a { color: rgba(255, 255, 255, 0.8); font-size: 15px; font-weight: 500; padding: 8px 0; border-bottom: 2px solid transparent; }
    .nav-menu a:hover { color: var(--primary-color); border-bottom-color: var(--primary-color); }
    .header-right { display: flex; align-items: center; gap: 15px; }
    .btn-nav { background: var(--primary-dark); color: #fff !important; padding: 8px 20px; border-radius: 6px; font-weight: 600; }
    .mobile-menu-btn { display: none; background: none; border: none; color: #fff; font-size: 24px; cursor: pointer; }

    
    .mobile-drawer { position: fixed; top: 0; left: -100%; width: 100%; height: 100%; z-index: 2000; transition: left 0.4s ease; }
    .mobile-drawer.active { left: 0; }
    .drawer-backdrop { position: absolute; top: 0; left: 0; width: 100%; height: 100%; background: rgba(0,0,0,0.6); backdrop-filter: blur(4px); }
    .drawer-content { position: absolute; top: 0; left: 0; width: 280px; height: 100%; background: var(--deep-ocean); padding: 24px; display: flex; flex-direction: column; }
    .drawer-header { display: flex; align-items: center; justify-content: space-between; margin-bottom: 40px; border-bottom: 1px solid rgba(255,255,255,0.1); padding-bottom: 20px; }
    .drawer-header .logo span { color: #fff; }
    .close-btn { background: none; border: none; color: #fff; font-size: 28px; cursor: pointer; }
    .drawer-nav { display: flex; flex-direction: column; gap: 20px; }
    .drawer-nav a { color: rgba(255,255,255,0.8); font-size: 16px; }

    
    .tag-banner {
      background: linear-gradient(135deg, var(--deep-ocean) 0%, #152C55 100%);
      color: #fff;
      padding: 140px 20px 60px;
    }
    .tag-banner-container {
      max-width: 1200px;
      margin: 0 auto;
    }
    .breadcrumb {
      font-size: 14px;
      color: rgba(255,255,255,0.6);
      margin-bottom: 15px;
    }
    .breadcrumb a:hover { color: var(--primary-color); }
    .tag-banner h1 {
      font-size: 32px;
      font-weight: 800;
    }
    .tag-banner p {
      font-size: 15px;
      color: rgba(255, 255, 255, 0.8);
      margin-top: 10px;
    }

    
    .tag-main {
      padding: 60px 20px;
    }
    .tag-container {
      max-width: 1200px;
      margin: 0 auto;
      display: grid;
      grid-template-columns: 8fr 4fr;
      gap: 40px;
    }
    .articles-stream {
      display: flex;
      flex-direction: column;
      gap: 30px;
    }
    .list-card {
      background: #fff;
      border-radius: 12px;
      overflow: hidden;
      border: 1px solid var(--border-color);
      display: grid;
      grid-template-columns: 4fr 8fr;
      box-shadow: var(--shadow-sm);
      transition: all 0.3s;
    }
    .list-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-md);
    }
    .list-card-img {
      background-size: cover;
      background-position: center;
      min-height: 180px;
    }
    .list-card-content {
      padding: 24px;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }
    .list-card-meta {
      font-size: 13px;
      color: var(--text-muted);
      margin-bottom: 10px;
    }
    .list-card-title {
      font-size: 20px;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 10px;
    }
    .list-card-summary {
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.5;
      margin-bottom: 20px;
    }
    .list-card-footer {
      display: flex;
      justify-content: space-between;
      align-items: center;
      font-size: 13px;
    }
    .list-card-tags {
      color: var(--primary-dark);
      font-weight: 600;
    }

    
    .sidebar {
      display: flex;
      flex-direction: column;
      gap: 30px;
    }
    .widget {
      background: #fff;
      border-radius: 12px;
      padding: 24px;
      border: 1px solid var(--border-color);
    }
    .widget-title {
      font-size: 18px;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 20px;
      position: relative;
      padding-bottom: 10px;
    }
    .widget-title::after {
      content: '';
      position: absolute;
      bottom: 0;
      left: 0;
      width: 40px;
      height: 3px;
      background: var(--primary-dark);
    }
    .sidebar-list {
      display: flex;
      flex-direction: column;
      gap: 15px;
    }
    .sidebar-item a {
      font-size: 14px;
      font-weight: 600;
      display: block;
      color: var(--text-main);
    }
    .sidebar-item a:hover {
      color: var(--primary-dark);
    }
    .tag-cloud {
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
    }
    .tag-cloud-item {
      font-size: 12px;
      background: var(--silver-white);
      color: var(--text-muted);
      padding: 6px 12px;
      border-radius: 6px;
      border: 1px solid var(--border-color);
    }
    .tag-cloud-item:hover {
      background: var(--primary-dark);
      color: #fff;
      border-color: var(--primary-dark);
    }

    
    .pagination {
      display: flex;
      gap: 10px;
      margin-top: 40px;
      justify-content: center;
    }
    .pagination-item {
      padding: 10px 16px;
      background: #fff;
      border: 1px solid var(--border-color);
      border-radius: 6px;
      font-weight: 600;
      font-size: 14px;
    }
    .pagination-item.active {
      background: var(--primary-dark);
      color: #fff;
      border-color: var(--primary-dark);
    }

    
    .footer {
      background: #060B18;
      color: rgba(255, 255, 255, 0.7);
      padding: 70px 20px 30px;
      border-top: 1px solid rgba(255,255,255,0.05);
    }
    .footer-top {
      max-width: 1200px;
      margin: 0 auto;
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
      gap: 40px;
      margin-bottom: 50px;
    }
    .footer-brand { grid-column: span 2; }
    .footer-brand .logo span { color: #fff; }
    .footer-brand p { margin-top: 15px; font-size: 14px; line-height: 1.6; }
    .footer-links h4 { color: #fff; font-size: 16px; font-weight: 700; margin-bottom: 20px; }
    .footer-links ul { display: flex; flex-direction: column; gap: 12px; }
    .footer-links a { font-size: 14px; }
    .footer-links a:hover { color: var(--primary-color); }
    .footer-bottom { border-top: 1px solid rgba(255,255,255,0.05); padding-top: 30px; max-width: 1200px; margin: 0 auto; display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 20px; font-size: 13px; }
    .footer-meta { display: flex; gap: 20px; }

    @media (max-width: 992px) {
      .tag-container { grid-template-columns: 1fr; }
      .list-card { grid-template-columns: 1fr; }
    }
    @media (max-width: 768px) {
      .nav-menu, .header-right .btn-nav { display: none; }
      .mobile-menu-btn { display: block; }
      .footer-brand { grid-column: span 1; }
      .footer-bottom { flex-direction: column; text-align: center; }
    }