:root {
      --primary-color: #1D7BFF;
      --primary-glow: rgba(29, 123, 255, 0.15);
      --deep-bg: #0B0F19;
      --slate-dark: #111827;
      --slate-medium: #1F2937;
      --slate-light: #F3F4F6;
      --text-main: #111827;
      --text-muted: #6B7280;
      --text-light: #FFFFFF;
      --border-color: #E5E7EB;
      --card-shadow: 0 10px 30px -10px rgba(0, 0, 0, 0.08);
    }

    * { box-sizing: border-box; margin: 0; padding: 0; }
    body {
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
      color: var(--text-main);
      background-color: #F9FAFB;
      line-height: 1.6;
    }
    a { color: inherit; text-decoration: none; transition: all 0.3s ease; }

    
    .site-header {
      position: sticky;
      top: 0;
      z-index: 1000;
      background: rgba(11, 15, 25, 0.95);
      backdrop-filter: blur(12px);
      border-bottom: 1px solid rgba(255, 255, 255, 0.08);
      padding: 15px 0;
    }
    .header-container {
      max-width: 1200px;
      margin: 0 auto;
      display: flex;
      justify-content: space-between;
      align-items: center;
      padding: 0 20px;
    }
    .logo { display: inline-flex; align-items: center; gap: 12px; }
    .logo img { display: block; height: 40px; width: auto; max-width: 160px; object-fit: contain; }
    .logo span { display: inline-block; font-size: 20px; font-weight: 800; color: var(--text-light); }
    .desktop-nav { display: flex; gap: 30px; align-items: center; }
    .desktop-nav a { color: rgba(255, 255, 255, 0.8); font-weight: 500; font-size: 15px; }
    .desktop-nav a:hover { color: var(--primary-color); }
    .header-actions { display: flex; align-items: center; gap: 15px; }
    .btn { display: inline-flex; align-items: center; justify-content: center; padding: 10px 24px; border-radius: 8px; font-weight: 600; font-size: 14px; transition: all 0.3s ease; border: none; cursor: pointer; }
    .btn-header { background: var(--primary-color); color: var(--text-light); }
    .btn-header:hover { background: #1565D8; }
    .mobile-menu-toggle { display: none; background: none; border: none; cursor: pointer; }
    .mobile-menu-toggle span { display: block; width: 24px; height: 2px; background: var(--text-light); margin: 5px 0; }

    .mobile-drawer { position: fixed; top: 0; left: -100%; width: 100%; height: 100%; z-index: 2000; transition: 0.4s cubic-bezier(0.16, 1, 0.3, 1); }
    .mobile-drawer.active { left: 0; }
    .drawer-overlay { 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(--slate-dark); display: flex; flex-direction: column; padding: 30px 20px; }
    .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: 28px; cursor: pointer; }
    .mobile-nav { display: flex; flex-direction: column; gap: 20px; }
    .mobile-nav a { color: rgba(255, 255, 255, 0.8); font-size: 16px; font-weight: 600; padding-bottom: 8px; border-bottom: 1px solid rgba(255, 255, 255, 0.05); }
    .drawer-footer { margin-top: auto; color: var(--text-muted); font-size: 12px; text-align: center; }

    
    .category-hero {
      background: var(--slate-dark);
      color: var(--text-light);
      padding: 60px 20px;
      text-align: center;
    }
    .category-hero h1 {
      font-size: 32px;
      font-weight: 800;
      margin-bottom: 15px;
    }
    .breadcrumb {
      display: flex;
      justify-content: center;
      gap: 10px;
      font-size: 14px;
      color: rgba(255, 255, 255, 0.6);
    }
    .breadcrumb a:hover { color: var(--primary-color); }

    
    .main-container {
      max-width: 1200px;
      margin: 50px auto;
      padding: 0 20px;
      display: grid;
      grid-template-columns: 2.5fr 1fr;
      gap: 40px;
    }

    
    .list-wrapper {
      display: flex;
      flex-direction: column;
      gap: 30px;
    }
    .article-horizontal-card {
      background: var(--text-light);
      border-radius: 16px;
      border: 1px solid var(--border-color);
      overflow: hidden;
      display: grid;
      grid-template-columns: 1fr 1.5fr;
      box-shadow: var(--card-shadow);
      transition: all 0.3s ease;
    }
    .article-horizontal-card:hover {
      transform: translateY(-4px);
      border-color: var(--primary-color);
    }
    .horizontal-img {
      height: 100%;
      min-height: 200px;
      position: relative;
    }
    .horizontal-img img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      position: absolute;
    }
    .horizontal-body {
      padding: 25px;
      display: flex;
      flex-direction: column;
    }
    .horizontal-meta {
      display: flex;
      gap: 15px;
      font-size: 12px;
      color: var(--text-muted);
      margin-bottom: 12px;
    }
    .horizontal-title {
      font-size: 20px;
      font-weight: 700;
      color: var(--slate-dark);
      margin-bottom: 12px;
    }
    .horizontal-desc {
      font-size: 14px;
      color: var(--text-muted);
      margin-bottom: 20px;
      flex-grow: 1;
    }
    .horizontal-footer {
      display: flex;
      justify-content: space-between;
      align-items: center;
      padding-top: 15px;
      border-top: 1px solid var(--border-color);
    }
    .horizontal-tag {
      font-size: 12px;
      color: var(--primary-color);
      font-weight: 600;
    }
    .horizontal-more {
      font-weight: 700;
      color: var(--primary-color);
      font-size: 13px;
    }

    
    .pagination-wrapper {
      margin-top: 50px;
      display: flex;
      justify-content: center;
      gap: 8px;
    }
    .pagination-link {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      width: 40px;
      height: 40px;
      border-radius: 8px;
      border: 1px solid var(--border-color);
      background: var(--text-light);
      font-weight: 600;
      color: var(--slate-dark);
    }
    .pagination-link.current {
      background: var(--primary-color);
      color: var(--text-light);
      border-color: var(--primary-color);
    }
    .pagination-link:hover:not(.current) {
      border-color: var(--primary-color);
      color: var(--primary-color);
    }

    
    .sidebar {
      display: flex;
      flex-direction: column;
      gap: 35px;
    }
    .widget {
      background: var(--text-light);
      padding: 30px;
      border-radius: 16px;
      border: 1px solid var(--border-color);
      box-shadow: var(--card-shadow);
    }
    .widget-title {
      font-size: 18px;
      font-weight: 700;
      color: var(--slate-dark);
      margin-bottom: 20px;
      border-left: 4px solid var(--primary-color);
      padding-left: 12px;
    }
    .hot-list {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 15px;
    }
    .hot-item {
      display: flex;
      gap: 12px;
      align-items: center;
    }
    .hot-num {
      width: 24px;
      height: 24px;
      background: var(--slate-light);
      border-radius: 4px;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 12px;
      font-weight: 700;
      color: var(--text-muted);
    }
    .hot-item:nth-child(-n+3) .hot-num {
      background: var(--primary-color);
      color: var(--text-light);
    }
    .hot-title {
      font-size: 14px;
      font-weight: 600;
      color: var(--slate-dark);
      flex-grow: 1;
    }

    
    .site-footer {
      background: var(--slate-dark);
      color: rgba(255, 255, 255, 0.7);
      padding: 70px 20px 30px;
      border-top: 1px solid rgba(255, 255, 255, 0.05);
    }
    .footer-container {
      max-width: 1200px;
      margin: 0 auto;
      display: grid;
      grid-template-columns: 2fr 1fr 1fr 1.5fr;
      gap: 50px;
      margin-bottom: 50px;
    }
    .footer-brand { display: flex; flex-direction: column; gap: 20px; }
    .footer-brand .logo span { color: var(--text-light); }
    .footer-desc { font-size: 14px; line-height: 1.7; }
    .footer-links-group h4 { color: var(--text-light); font-size: 16px; font-weight: 700; margin-bottom: 20px; }
    .footer-links { list-style: none; }
    .footer-links li { margin-bottom: 12px; }
    .footer-links a { font-size: 14px; }
    .footer-links a:hover { color: var(--primary-color); }
    .footer-bottom {
      max-width: 1200px;
      margin: 0 auto;
      padding-top: 30px;
      border-top: 1px solid rgba(255, 255, 255, 0.05);
      display: flex;
      justify-content: space-between;
      align-items: center;
      font-size: 13px;
    }

    @media (max-width: 991px) {
      .desktop-nav { display: none; }
      .mobile-menu-toggle { display: block; }
      .main-container { grid-template-columns: 1fr; }
      .footer-container { grid-template-columns: repeat(2, 1fr); }
    }
    @media (max-width: 768px) {
      .article-horizontal-card { grid-template-columns: 1fr; }
      .footer-container { grid-template-columns: 1fr; }
      .footer-bottom { flex-direction: column; gap: 15px; text-align: center; }
    }