:root {
    --primary: #a0522d;
    --secondary: #f5deb3;
    --accent: #d4af37;
    --text: #333;
    --light: #fff;
    --dark: #222;
    --radius: 8px;
    --shadow: 0 4px 12px rgba(0,0,0,0.1);
    --transition: all 0.3s ease;
  }

  * {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
  }

  body {
    font-family: 'Merriweather', serif;
    line-height: 1.6;
    color: var(--text);
    background: linear-gradient(135deg, var(--secondary), var(--light));
    padding: 0;
    margin: 0;
  }

  .container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
  }

  header {
    background: rgba(0,0,0,0.7);
    color: var(--light);
    padding: 20px 0;
    position: relative;
    margin-bottom: 40px;
    box-shadow: var(--shadow);
  }

  .header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0 20px;
  }

  .logo {
    font-size: 24px;
    font-weight: bold;
    color: var(--accent);
    text-shadow: 0 0 10px rgba(212,175,55,0.5);
  }

  .notice {
    background: var(--accent);
    color: var(--dark);
    padding: 10px 20px;
    border-radius: var(--radius);
    font-size: 14px;
    margin: 20px 0;
    text-align: center;
    box-shadow: var(--shadow);
  }

  article {
    background: rgba(255,255,255,0.9);
    backdrop-filter: blur(5px);
    padding: 40px;
    border-radius: var(--radius);
    margin-bottom: 40px;
    box-shadow: var(--shadow);
  }

  h2, h3, h4 {
    font-family: 'Playfair Display', serif;
    margin: 20px 0;
    color: var(--primary);
  }

  h2 {
    font-size: 32px;
    border-bottom: 2px solid var(--accent);
    padding-bottom: 10px;
  }

  h3 {
    font-size: 24px;
  }

  p {
    margin-bottom: 20px;
    font-size: 16px;
  }

  .image-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 20px;
    margin: 30px 0;
  }

  .image-card {
    background: var(--light);
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: var(--transition);
  }

  .image-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 16px rgba(0,0,0,0.2);
  }

  .image-card img {
    width: 100%;
    height: auto;
    display: block;
    border-radius: var(--radius) var(--radius) 0 0;
  }

  .image-caption {
    padding: 15px;
    background: var(--light);
  }

  pre {
    background: var(--dark);
    color: var(--light);
    padding: 20px;
    border-radius: var(--radius);
    margin: 20px 0;
    overflow-x: auto;
    font-family: 'Courier New', monospace;
    position: relative;
  }

  pre::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: url('https://images.gptkong.com/demo/sample12.png') center/cover;
    opacity: 0.1;
    pointer-events: none;
  }

  code {
    font-family: 'Courier New', monospace;
    background: rgba(0,0,0,0.2);
    padding: 2px 5px;
    border-radius: 3px;
  }

  .nav-links {
    display: flex;
    gap: 20px;
  }

  .nav-links a {
    color: var(--light);
    text-decoration: none;
    transition: var(--transition);
    position: relative;
  }

  .nav-links a:hover {
    color: var(--accent);
  }

  .nav-links a::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--accent);
    transition: var(--transition);
  }

  .nav-links a:hover::after {
    width: 100%;
  }

  @media (max-width: 768px) {
    .header-content {
      flex-direction: column;
      gap: 20px;
    }

    .nav-links {
      flex-direction: column;
      gap: 10px;
    }

    article {
      padding: 20px;
    }

    .image-grid {
      grid-template-columns: 1fr;
    }
  }

  @keyframes fadeIn {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
  }

  .animated {
    animation: fadeIn 0.8s ease forwards;
  }

  .delay-1 { animation-delay: 0.2s; }
  .delay-2 { animation-delay: 0.4s; }
  .delay-3 { animation-delay: 0.6s; }