:root {
    --primary: #2F4F4F;
    --secondary: #8B4513;
    --accent: #FFD700;
    --bg-light: #F5F5DC;
    --text-dark: #333;
    --text-light: #FFF8DC;
  }

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

  body {
    font-family: 'Roboto', sans-serif;
    line-height: 1.6;
    color: var(--text-dark);
    background: var(--bg-light);
    overflow-x: hidden;
  }

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

  .hero {
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    color: var(--text-light);
    padding: 120px 0;
    text-align: center;
    position: relative;
    overflow: hidden;
    margin-bottom: 60px;
  }

  .hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: url('https://images.gptkong.com/demo/sample1.png') center/cover no-repeat;
    opacity: 0.15;
  }

  .hero h1 {
    font-family: 'Playfair Display', serif;
    font-size: 3.5rem;
    margin-bottom: 20px;
    position: relative;
    text-shadow: 2px 2px 4px rgba(0,0,0,0.3);
  }

  .hero p {
    font-size: 1.2rem;
    max-width: 800px;
    margin: 0 auto 30px;
    position: relative;
  }

  .notice {
    background: rgba(255,255,255,0.2);
    padding: 15px;
    border-radius: 8px;
    display: inline-block;
    margin-top: 30px;
    backdrop-filter: blur(5px);
    border: 1px solid rgba(255,255,255,0.3);
  }

  .navbar {
    position: fixed;
    top: 0;
    width: 100%;
    background: linear-gradient(to right, var(--primary), var(--secondary));
    padding: 15px 0;
    box-shadow: 0 2px 10px rgba(0,0,0,0.2);
    z-index: 1000;
    display: flex;
    justify-content: center;
  }

  .navbar-inner {
    display: flex;
    justify-content: space-between;
    align-items: center;
    width: 100%;
    max-width: 1200px;
    padding: 0 20px;
  }

  .nav-links {
    display: flex;
    gap: 30px;
  }

  .navbar a {
    color: var(--text-light);
    text-decoration: none;
    font-weight: 500;
    transition: all 0.3s ease;
    position: relative;
  }

  .navbar a::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--accent);
    transition: width 0.3s ease;
  }

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

  .navbar a:hover::after {
    width: 100%;
  }

  .content {
    padding-top: 80px;
  }

  article {
    background: white;
    border-radius: 12px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.1);
    padding: 50px;
    margin-bottom: 60px;
  }

  article h2 {
    font-family: 'Playfair Display', serif;
    color: var(--primary);
    font-size: 2.2rem;
    margin-bottom: 30px;
    position: relative;
    padding-bottom: 15px;
  }

  article h2::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 80px;
    height: 3px;
    background: linear-gradient(to right, var(--secondary), var(--accent));
  }

  article h3 {
    font-family: 'Playfair Display', serif;
    color: var(--secondary);
    font-size: 1.8rem;
    margin: 40px 0 20px;
  }

  article p {
    margin-bottom: 20px;
    font-size: 1.1rem;
  }

  pre {
    background: #2d2d2d;
    color: #f8f8f2;
    padding: 20px;
    border-radius: 8px;
    overflow-x: auto;
    margin: 30px 0;
    box-shadow: inset 0 0 10px rgba(0,0,0,0.5);
    position: relative;
  }

  pre::before {
    content: 'CSS';
    position: absolute;
    top: 0;
    left: 0;
    background: var(--accent);
    color: var(--primary);
    padding: 2px 10px;
    border-radius: 0 0 5px 0;
    font-size: 0.8rem;
    font-weight: bold;
  }

  code {
    font-family: 'Courier New', monospace;
    font-size: 0.9rem;
  }

  .gallery {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin: 50px 0;
  }

  .gallery-item {
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    height: 300px;
  }

  .gallery-item:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 30px rgba(0,0,0,0.2);
  }

  .gallery-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
  }

  .gallery-item:hover img {
    transform: scale(1.05);
  }

  .summary {
    background: linear-gradient(135deg, rgba(47,79,79,0.1), rgba(139,69,19,0.1)));
    padding: 40px;
    border-radius: 12px;
    margin-top: 60px;
    border-left: 5px solid var(--accent);
  }

  .summary h3 {
    color: var(--primary);
    margin-bottom: 20px;
  }

  @media (max-width: 768px) {
    .hero h1 {
      font-size: 2.5rem;
    }
    
    article {
      padding: 30px;
    }
    
    .gallery {
      grid-template-columns: 1fr;
    }
    
    .navbar-inner {
      flex-direction: column;
      gap: 15px;
    }
    
    .nav-links {
      gap: 15px;
      flex-wrap: wrap;
      justify-content: center;
    }
  }

  @keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-20px); }
  }

  .floating {
    animation: float 6s ease-in-out infinite;
  }

  .parallax-section {
    height: 400px;
    background-attachment: fixed;
    background-position: center;
    background-repeat: no-repeat;
    background-size: cover;
    margin: 60px 0;
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
  }

  .parallax-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0,0,0,0.4);
  }

  .parallax-content {
    position: relative;
    color: white;
    text-align: center;
    padding: 0 20px;
    max-width: 800px;
  }

  .parallax-content h2 {
    font-family: 'Playfair Display', serif;
    font-size: 2.5rem;
    margin-bottom: 20px;
    text-shadow: 2px 2px 4px rgba(0,0,0,0.5);
  }