:root {
      --primary: #1D7BFF;
      --primary-hover: #0056b3;
      --accent: rgb(16,185,129);
      --dark-navy: #0A1128;
      --silver-white: #F4F7FC;
      --text-main: #1E293B;
      --text-muted: #64748B;
      --border-color: rgba(226, 232, 240, 0.8);
      --card-shadow: 0 10px 30px rgba(0, 0, 0, 0.05);
      --font-stack: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    }
    * { box-sizing: border-box; margin: 0; padding: 0; }
    body {
      font-family: var(--font-stack);
      color: var(--text-main);
      background-color: #ffffff;
      line-height: 1.6;
    }
    a { text-decoration: none; color: inherit; transition: all 0.3s ease; }
    img { max-width: 100%; height: auto; }
    
    
    .container {
      width: 100%;
      max-width: 1200px;
      margin: 0 auto;
      padding: 0 20px;
    }
    
    
    .header {
      background-color: rgba(255, 255, 255, 0.95);
      backdrop-filter: blur(10px);
      border-bottom: 1px solid var(--border-color);
      position: sticky;
      top: 0;
      z-index: 100;
      height: 70px;
      display: flex;
      align-items: center;
    }
    .header-inner {
      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: 20px;
      font-weight: 800;
      line-height: 1;
      color: var(--dark-navy);
      white-space: nowrap;
    }
    
    
    .nav-desktop { display: flex; align-items: center; gap: 24px; }
    .nav-desktop a {
      font-size: 15px;
      font-weight: 500;
      color: var(--text-main);
      position: relative;
      padding: 6px 0;
    }
    .nav-desktop a:hover, .nav-desktop a.active {
      color: var(--primary);
    }
    .nav-desktop a::after {
      content: '';
      position: absolute;
      bottom: 0;
      left: 0;
      width: 0;
      height: 2px;
      background-color: var(--primary);
      transition: width 0.3s;
    }
    .nav-desktop a:hover::after { width: 100%; }
    
    .cta-header-btn {
      background-color: var(--primary);
      color: #fff !important;
      padding: 8px 18px;
      border-radius: 6px;
      font-weight: 600 !important;
    }
    .cta-header-btn:hover {
      background-color: var(--primary-hover);
    }
    
    
    .hamburger {
      display: none;
      background: none;
      border: none;
      cursor: pointer;
      flex-direction: column;
      gap: 5px;
      z-index: 110;
    }
    .hamburger span {
      display: block;
      width: 25px;
      height: 3px;
      background-color: var(--dark-navy);
      border-radius: 3px;
      transition: all 0.3s;
    }
    
    
    .drawer {
      position: fixed;
      top: 0;
      left: -300px;
      width: 300px;
      height: 100vh;
      background-color: #fff;
      box-shadow: 5px 0 30px rgba(0,0,0,0.1);
      z-index: 1000;
      transition: left 0.3s ease;
      display: flex;
      flex-direction: column;
      padding: 30px 20px;
    }
    .drawer.active { left: 0; }
    .drawer-overlay {
      position: fixed;
      top: 0;
      left: 0;
      width: 100vw;
      height: 100vh;
      background-color: rgba(0,0,0,0.5);
      z-index: 999;
      display: none;
    }
    .drawer-overlay.active { display: block; }
    .drawer-header {
      display: flex;
      justify-content: space-between;
      align-items: center;
      margin-bottom: 30px;
    }
    .drawer-close {
      background: none;
      border: none;
      font-size: 24px;
      cursor: pointer;
      color: var(--text-main);
    }
    .drawer-nav { display: flex; flex-direction: column; gap: 18px; }
    .drawer-nav a { font-size: 16px; font-weight: 500; }
    .drawer-nav a:hover { color: var(--primary); }
    
    
    .breadcrumb-area {
      background-color: var(--silver-white);
      padding: 15px 0;
      border-bottom: 1px solid var(--border-color);
    }
    .breadcrumbs {
      display: flex;
      gap: 8px;
      font-size: 14px;
      color: var(--text-muted);
    }
    .breadcrumbs a:hover {
      color: var(--primary);
    }
    
    
    .page-main { padding: 60px 0; }
    .main-grid {
      display: grid;
      grid-template-columns: 2.5fr 1fr;
      gap: 40px;
    }
    
    
    .article-wrap {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: 12px;
      padding: 40px;
    }
    .article-header {
      border-bottom: 1px solid var(--border-color);
      padding-bottom: 25px;
      margin-bottom: 30px;
    }
    .article-main-title {
      font-size: 30px;
      font-weight: 800;
      color: var(--dark-navy);
      line-height: 1.35;
      margin-bottom: 15px;
    }
    .detail-meta {
      display: flex;
      gap: 20px;
      font-size: 14px;
      color: var(--text-muted);
      flex-wrap: wrap;
    }
    .detail-meta span { display: flex; align-items: center; gap: 6px; }
    
    .article-content {
      font-size: 16px;
      line-height: 1.8;
      color: #334155;
    }
    .article-content p { margin-bottom: 24px; }
    .article-content h2, .article-content h3 {
      color: var(--dark-navy);
      margin: 40px 0 20px;
      font-weight: 700;
    }
    
    
    .article-footer {
      border-top: 1px solid var(--border-color);
      padding-top: 25px;
      margin-top: 40px;
    }
    .article-tags {
      display: flex;
      gap: 10px;
      flex-wrap: wrap;
      margin-bottom: 30px;
    }
    .article-tags a {
      background-color: var(--silver-white);
      color: var(--primary);
      padding: 5px 12px;
      border-radius: 4px;
      font-size: 13px;
      font-weight: 600;
    }
    
    .prev-next-nav {
      display: flex;
      justify-content: space-between;
      gap: 20px;
      border-top: 1px dashed var(--border-color);
      padding-top: 20px;
    }
    .prev-next-nav a {
      font-size: 14px;
      max-width: 48%;
      color: var(--text-main);
    }
    .prev-next-nav a:hover { color: var(--primary); }
    
    
    .related-section {
      margin-top: 60px;
    }
    .related-title {
      font-size: 20px;
      font-weight: 700;
      color: var(--dark-navy);
      margin-bottom: 24px;
    }
    .related-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 20px;
    }
    .related-item-card {
      background: #fff;
      border: 1px solid var(--border-color);
      border-radius: 8px;
      overflow: hidden;
    }
    .related-item-card img {
      height: 140px;
      width: 100%;
      object-fit: cover;
    }
    .related-card-body {
      padding: 15px;
    }
    .related-card-title {
      font-size: 14px;
      font-weight: 700;
      line-height: 1.4;
    }
    
    
    .sidebar {
      display: flex;
      flex-direction: column;
      gap: 40px;
    }
    .sidebar-widget {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: 12px;
      padding: 24px;
    }
    .widget-title {
      font-size: 18px;
      font-weight: 700;
      color: var(--dark-navy);
      border-left: 4px solid var(--primary);
      padding-left: 12px;
      margin-bottom: 20px;
    }
    
    
    .footer {
      background-color: #0c1524;
      color: rgba(255,255,255,0.8);
      padding: 80px 0 30px;
      border-top: 1px solid rgba(255,255,255,0.05);
    }
    .footer-inner {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 40px;
      margin-bottom: 60px;
    }
    .footer-col h4 {
      color: #fff;
      font-size: 16px;
      font-weight: 700;
      margin-bottom: 24px;
    }
    .footer-col p {
      font-size: 14px;
      line-height: 1.6;
      color: rgba(255,255,255,0.6);
    }
    .footer-links {
      list-style: none;
    }
    .footer-links li {
      margin-bottom: 12px;
    }
    .footer-links a {
      font-size: 14px;
      color: rgba(255,255,255,0.6);
    }
    .footer-links a:hover {
      color: #fff;
      padding-left: 5px;
    }
    .footer-bottom {
      border-top: 1px solid rgba(255,255,255,0.05);
      padding-top: 30px;
      display: flex;
      justify-content: space-between;
      align-items: center;
      flex-wrap: wrap;
      gap: 20px;
      font-size: 13px;
      color: rgba(255,255,255,0.4);
    }
    .footer-bottom-links {
      display: flex;
      gap: 20px;
    }
    
    @media (max-width: 900px) {
      .hamburger { display: flex; }
      .nav-desktop { display: none; }
      .main-grid {
        grid-template-columns: 1fr;
      }
      .related-grid {
        grid-template-columns: 1fr;
      }
      .footer-inner {
        grid-template-columns: 1fr;
      }
    }