:root {
    --primary: #032B44;
    --secondary: #A1794F;
    --accent: #652DA1;
    --light: #F5F5DC;
    --highlight: #C2E7B0;
    --text: #333333;
    --shadow: 0 10px 30px rgba(0,0,0,0.1);
  }

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

  @font-face {
    font-family: 'Roboto Bold';
    src: local('Roboto Bold'), local('Roboto-Bold');
  }

  @font-face {
    font-family: 'Open Sans Regular';
    src: local('Open Sans'), local('OpenSans');
  }

  body {
    font-family: 'Open Sans Regular', sans-serif;
    color: var(--text);
    background: linear-gradient(135deg, #F5F5DC, #FFFFFF);
    line-height: 1.6;
    overflow-x: hidden;
  }

  .design-notice {
    position: fixed;
    bottom: 20px;
    right: 20px;
    background: rgba(3, 43, 68, 0.9);
    color: white;
    padding: 10px 15px;
    border-radius: 25px;
    font-size: 14px;
    z-index: 1000;
    box-shadow: var(--shadow);
  }

  .hero {
    height: 600px;
    background: linear-gradient(rgba(3, 43, 68, 0.8), rgba(3, 43, 68, 0.6)), 
                url('https://images.gptkong.com/demo/sample1.png') center/cover;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    color: white;
    position: relative;
    overflow: hidden;
  }

  .hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: url('https://images.gptkong.com/demo/sample2.png') repeat;
    opacity: 0.3;
    animation: moveStars 50s linear infinite;
  }

  @keyframes moveStars {
    from { background-position: 0 0; }
    to { background-position: -10000px 5000px; }
  }

  .hero-content {
    max-width: 800px;
    padding: 0 20px;
    z-index: 2;
  }

  .hero h1 {
    font-size: 3.5rem;
    margin-bottom: 20px;
    text-shadow: 0 2px 10px rgba(0,0,0,0.3);
    animation: fadeIn 1.5s ease-out;
  }

  .hero p {
    font-size: 1.2rem;
    margin-bottom: 30px;
    animation: fadeIn 2s ease-out;
  }

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

  .nav {
    position: fixed;
    top: 0;
    width: 100%;
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(10px);
    padding: 15px 5%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    z-index: 100;
    box-shadow: 0 2px 15px rgba(0,0,0,0.1);
    transition: all 0.3s ease;
  }

  .nav.scrolled {
    background: rgba(3, 43, 68, 0.95);
    padding: 10px 5%;
  }

  .nav.scrolled a {
    color: white;
  }

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

  .nav a {
    text-decoration: none;
    color: var(--primary);
    font-weight: 600;
    transition: color 0.3s;
    position: relative;
  }

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

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

  .container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 80px 20px;
  }

  article {
    background: white;
    border-radius: 15px;
    padding: 50px;
    box-shadow: var(--shadow);
    margin-bottom: 50px;
  }

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

  article h2::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100px;
    height: 4px;
    background: linear-gradient(90deg, var(--accent), var(--highlight));
    border-radius: 2px;
  }

  article h3 {
    font-size: 1.8rem;
    color: var(--secondary);
    margin: 40px 0 20px;
  }

  article p {
    font-size: 1.1rem;
    margin-bottom: 20px;
    color: var(--text);
  }

  pre {
    background: #f8f8f8;
    border-radius: 8px;
    padding: 20px;
    margin: 25px 0;
    overflow: auto;
    border-left: 4px solid var(--accent);
    font-family: monospace;
    line-height: 1.5;
  }

  code {
    font-family: monospace;
    background: rgba(101, 45, 161, 0.1);
    padding: 2px 5px;
    border-radius: 3px;
    color: var(--accent);
  }

  table {
    width: 100%;
    border-collapse: collapse;
    margin: 30px 0;
    box-shadow: 0 2px 15px rgba(0,0,0,0.1);
    border-radius: 8px;
    overflow: hidden;
  }

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

  thead {
    background: linear-gradient(90deg, var(--primary), var(--accent));
    color: white;
  }

  tbody tr:hover {
    background-color: rgba(194, 231, 176, 0.2);
  }

  .gallery {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 20px;
    margin: 40px 0;
  }

  .gallery-item {
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
    transition: transform 0.3s, box-shadow 0.3s;
  }

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

  .gallery-item img {
    width: 100%;
    height: 300px;
    object-fit: cover;
    display: block;
  }

  .example-cards {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: 30px;
    margin: 50px 0;
  }

  .example-card {
    background: white;
    border-radius: 15px;
    padding: 30px;
    box-shadow: var(--shadow);
    transition: transform 0.3s;
    position: relative;
    overflow: hidden;
  }

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

  .example-card:hover {
    transform: translateY(-10px);
  }

  .example-card h4 {
    font-size: 1.4rem;
    color: var(--primary);
    margin-bottom: 15px;
  }

  .example-card p {
    color: var(--text);
  }

  .example-card img {
    width: 100%;
    height: 200px;
    object-fit: cover;
    border-radius: 8px;
    margin-top: 20px;
  }

  .footer {
    background: linear-gradient(135deg, var(--primary), #000000);
    color: white;
    padding: 50px 0;
    text-align: center;
  }

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

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

  .footer a {
    color: white;
    text-decoration: none;
    transition: color 0.3s;
  }

  .footer a:hover {
    color: var(--highlight);
  }

  @media (max-width: 768px) {
    .hero h1 {
      font-size: 2.5rem;
    }

    .nav-links {
      gap: 15px;
    }

    article {
      padding: 30px;
    }

    .example-cards {
      grid-template-columns: 1fr;
    }
  }

  @media (max-width: 480px) {
    .hero h1 {
      font-size: 2rem;
    }

    .nav {
      flex-direction: column;
      padding: 15px;
    }

    .nav-links {
      margin-top: 15px;
      flex-wrap: wrap;
      justify-content: center;
    }

    article {
      padding: 20px;
    }
  }