:root {
    --primary: #8B4513;
    --secondary: #808000;
    --accent: #1E90FF;
    --dark: #333;
    --light: #f5f5f5;
    --text: #555;
    --white: #fff;
    --transition: all 0.3s ease;
  }

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

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

  @font-face {
    font-family: 'Baskerville';
    src: local('Baskerville'), local('Baskerville Old Face');
  }

  h1, h2, h3, h4 {
    font-family: 'Baskerville', serif;
    color: var(--dark);
    margin-bottom: 1rem;
  }

  p {
    margin-bottom: 1.5rem;
    font-size: 17px;
  }

  a {
    color: var(--accent);
    text-decoration: none;
    transition: var(--transition);
  }

  a:hover {
    opacity: 0.8;
  }

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

  .hero {
    background: linear-gradient(135deg, var(--primary) 25%, var(--accent) 75%);
    color: var(--white);
    padding: 100px 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: 0.2;
    z-index: 0;
  }

  .hero-content {
    position: relative;
    z-index: 1;
  }

  .hero h1 {
    font-size: 3rem;
    margin-bottom: 20px;
    text-shadow: 2px 2px 4px rgba(0,0,0,0.3);
  }

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

  .notice {
    background: rgba(255,255,255,0.9);
    color: var(--dark);
    padding: 15px;
    border-radius: 8px;
    display: inline-block;
    box-shadow: 0 4px 6px rgba(0,0,0,0.1);
    margin-top: 30px;
    font-size: 16px;
  }

  .navbar {
    position: fixed;
    top: 0;
    width: 100%;
    background-color: rgba(139,69,19,0.9);
    padding: 15px 20px;
    z-index: 1000;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
    backdrop-filter: blur(5px);
  }

  .nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    max-width: 1200px;
    margin: 0 auto;
  }

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

  .nav-links a {
    color: var(--white);
    font-weight: 500;
  }

  .content-section {
    padding: 80px 0;
    position: relative;
  }

  .content-section:nth-child(even) {
    background-color: var(--white);
  }

  .grid-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(500px, 1fr));
    gap: 40px;
    margin-top: 40px;
  }

  .card {
    background-color: var(--white);
    border-radius: 12px;
    box-shadow: 0 8px 16px rgba(0,0,0,0.1);
    padding: 30px;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
  }

  .card:hover {
    transform: translateY(-10px);
    box-shadow: 0 12px 24px rgba(0,0,0,0.15);
  }

  .card::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 5px;
    background: linear-gradient(90deg, var(--primary), var(--accent));
  }

  .card-img {
    width: 100%;
    height: 200px;
    object-fit: cover;
    border-radius: 8px;
    margin-bottom: 20px;
    box-shadow: 0 4px 8px rgba(0,0,0,0.1);
    transition: var(--transition);
  }

  .card:hover .card-img {
    transform: scale(1.03);
  }

  pre {
    background: #282c34;
    color: #abb2bf;
    padding: 20px;
    border-radius: 8px;
    overflow-x: auto;
    margin: 20px 0;
    font-size: 15px;
    line-height: 1.5;
    tab-size: 2;
  }

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

  table {
    width: 100%;
    border-collapse: collapse;
    margin: 25px 0;
    box-shadow: 0 4px 8px rgba(0,0,0,0.1);
  }

  th, td {
    padding: 15px;
    text-align: left;
    border-bottom: 1px solid #ddd;
  }

  th {
    background-color: var(--primary);
    color: var(--white);
  }

  tr:nth-child(even) {
    background-color: #f9f9f9;
  }

  tr:hover {
    background-color: #f1f1f1;
  }

  .parallax {
    background-image: url('https://images.gptkong.com/demo/sample2.png');
    height: 400px;
    background-attachment: fixed;
    background-position: center;
    background-repeat: no-repeat;
    background-size: cover;
    margin: 60px 0;
    position: relative;
  }

  .parallax::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0,0,0,0.3);
  }

  .footer {
    background: linear-gradient(135deg, var(--dark), #000);
    color: var(--white);
    padding: 50px 0;
    text-align: center;
  }

  .footer-links {
    display: flex;
    justify-content: center;
    gap: 30px;
    margin: 30px 0;
  }

  .footer-links a {
    color: var(--white);
  }

  .image-gallery {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: 20px;
    margin: 40px 0;
  }

  .gallery-img {
    width: 100%;
    height: 250px;
    object-fit: cover;
    border-radius: 8px;
    box-shadow: 0 4px 8px rgba(0,0,0,0.1);
    transition: var(--transition);
  }

  .gallery-img:hover {
    transform: scale(1.05);
    box-shadow: 0 8px 16px rgba(0,0,0,0.2);
  }

  .button {
    background: linear-gradient(45deg, var(--primary), var(--secondary));
    border: none;
    border-radius: 30px;
    color: var(--white);
    padding: 12px 25px;
    font-size: 16px;
    cursor: pointer;
    transition: var(--transition);
    display: inline-block;
    box-shadow: 0 4px 6px rgba(0,0,0,0.1);
  }

  .button:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 12px rgba(0,0,0,0.15);
  }

  @media (max-width: 768px) {
    .grid-container {
      grid-template-columns: 1fr;
    }
    
    .hero h1 {
      font-size: 2.2rem;
    }
    
    .nav-links {
      display: none;
    }
    
    .content-section {
      padding: 60px 0;
    }
  }