:root {
    --primary: #2C3E50;
    --secondary: #34495E;
    --accent: #1E90FF;
    --highlight: #FF4500;
    --text: #ECF0F1;
    --light: #FFFFFF;
    --dark: #1A1A1A;
    --gradient: linear-gradient(135deg, #2980B9, #6DD5FA);
  }

  @font-face {
    font-family: 'Roboto';
    src: url('https://fonts.googleapis.com/css2?family=Roboto:wght@300;400;500;700&display=swap');
  }

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

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

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

  .hero {
    height: 80vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--gradient);
    clip-path: polygon(0 0, 100% 0, 100% 85%, 0 100%);
    margin-bottom: 80px;
    position: relative;
    overflow: hidden;
  }

  .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: 0.1;
    z-index: 0;
  }

  .hero-content {
    text-align: center;
    z-index: 1;
    padding: 40px;
    max-width: 800px;
  }

  .hero h1 {
    font-size: 3.5rem;
    margin-bottom: 20px;
    text-shadow: 0 4px 10px rgba(0,0,0,0.3);
    background: linear-gradient(90deg, var(--light), var(--accent));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
  }

  .hero p {
    font-size: 1.2rem;
    margin-bottom: 30px;
    color: var(--light);
  }

  .notice {
    background-color: rgba(255,255,255,0.1);
    padding: 15px;
    border-radius: 8px;
    margin: 30px 0;
    text-align: center;
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255,255,255,0.2);
  }

  article {
    background-color: var(--secondary);
    padding: 60px;
    border-radius: 20px;
    box-shadow: 0 20px 50px rgba(0,0,0,0.3);
    margin-bottom: 80px;
    position: relative;
    overflow: hidden;
  }

  article::before {
    content: '';
    position: absolute;
    top: 0;
    right: 0;
    width: 300px;
    height: 300px;
    background: radial-gradient(circle, var(--accent), transparent 70%);
    opacity: 0.1;
    z-index: 0;
  }

  h2 {
    font-size: 2.5rem;
    margin-bottom: 30px;
    color: var(--light);
    position: relative;
    z-index: 1;
  }

  h2::after {
    content: '';
    display: block;
    width: 100px;
    height: 4px;
    background: var(--gradient);
    margin-top: 15px;
    border-radius: 2px;
  }

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

  p {
    font-size: 1.1rem;
    margin-bottom: 25px;
    position: relative;
    z-index: 1;
  }

  .highlight {
    color: var(--accent);
    font-weight: 500;
  }

  .accent {
    color: var(--highlight);
    font-weight: 500;
  }

  pre {
    background-color: rgba(0,0,0,0.3);
    border-radius: 10px;
    padding: 20px;
    margin: 30px 0;
    overflow: auto;
    border-left: 4px solid var(--accent);
    font-size: 0.9rem;
    line-height: 1.5;
    position: relative;
  }

  code {
    font-family: 'Courier New', monospace;
    color: var(--light);
  }

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

  .gallery-item {
    border-radius: 15px;
    overflow: hidden;
    box-shadow: 0 10px 30px rgba(0,0,0,0.2);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    position: relative;
  }

  .gallery-item:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 40px rgba(0,0,0,0.3);
  }

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

  .gallery-item::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(to top, rgba(0,0,0,0.7), transparent);
    opacity: 0;
    transition: opacity 0.3s ease;
  }

  .gallery-item:hover::after {
    opacity: 1;
  }

  .nav-links {
    display: flex;
    justify-content: center;
    gap: 20px;
    margin: 40px 0;
    flex-wrap: wrap;
  }

  .nav-link {
    padding: 12px 25px;
    background: rgba(255,255,255,0.1);
    border-radius: 50px;
    color: var(--light);
    text-decoration: none;
    transition: all 0.3s ease;
    border: 1px solid rgba(255,255,255,0.2);
  }

  .nav-link:hover {
    background: var(--accent);
    transform: translateY(-3px);
    box-shadow: 0 5px 15px rgba(30, 144, 255, 0.4);
  }

  .abstract-shape {
    position: absolute;
    width: 200px;
    height: 200px;
    border-radius: 50%;
    background: rgba(255, 69, 0, 0.1);
    filter: blur(50px);
    z-index: -1;
  }

  .shape-1 {
    top: 20%;
    left: 10%;
  }

  .shape-2 {
    bottom: 15%;
    right: 10%;
  }

  footer {
    text-align: center;
    padding: 40px 0;
    background-color: var(--dark);
    margin-top: 80px;
    clip-path: polygon(0 15%, 100% 0, 100% 100%, 0 100%);
  }

  @media (max-width: 768px) {
    .hero h1 {
      font-size: 2.5rem;
    }
    
    article {
      padding: 30px;
    }
    
    h2 {
      font-size: 2rem;
    }
    
    h3 {
      font-size: 1.5rem;
    }
    
    .gallery {
      grid-template-columns: 1fr;
    }
  }

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

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