:root {
    --primary: linear-gradient(135deg, #0f0c29, #302b63, #24243e);
    --secondary: #1e1e1e;
    --accent: #00ffcc;
    --text: #ffffff;
    --text-light: #dddddd;
    --card-bg: #3a3a3a;
    --highlight: #00e6b8;
  }

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

  body {
    background: var(--primary);
    color: var(--text);
    font-family: 'Roboto', sans-serif;
    line-height: 1.6;
    min-height: 100%;
    overflow-x: hidden;
  }

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

  header {
    text-align: center;
    padding: 40px 0;
    position: relative;
  }

  header::after {
    content: "这是一个网页样式设计参考";
    position: absolute;
    bottom: 10px;
    left: 50%;
    transform: translateX(-50%);
    font-size: 14px;
    color: var(--accent);
    opacity: 0.8;
  }

  h1, h2, h3, h4 {
    font-family: 'Roboto', sans-serif;
    margin-bottom: 20px;
    color: var(--text);
  }

  h1 {
    font-size: 2.5rem;
    background: linear-gradient(90deg, var(--accent), #00e6b8);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    margin-bottom: 30px;
  }

  h2 {
    font-size: 1.8rem;
    border-bottom: 2px solid var(--accent);
    padding-bottom: 10px;
    margin-top: 40px;
  }

  h3 {
    font-size: 1.4rem;
    margin-top: 30px;
    color: var(--accent);
  }

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

  .article-container {
    display: grid;
    grid-template-columns: 1fr;
    gap: 40px;
    padding: 40px 0;
  }

  .article-section {
    background: rgba(30, 30, 30, 0.7);
    border-radius: 12px;
    padding: 30px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
  }

  .article-section:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.4);
  }

  pre {
    background: #2c2c2c;
    border-radius: 8px;
    padding: 20px;
    margin: 20px 0;
    overflow: auto;
    border-left: 4px solid var(--accent);
  }

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

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

  .decorative-image {
    width: 100%;
    height: auto;
    border-radius: 8px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    object-fit: cover;
  }

  .decorative-image:hover {
    transform: scale(1.03);
    box-shadow: 0 10px 25px rgba(0, 255, 204, 0.3);
  }

  .nav-links {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 15px;
    margin-bottom: 40px;
  }

  .nav-link {
    color: var(--text);
    text-decoration: none;
    padding: 10px 20px;
    border-radius: 30px;
    background: rgba(0, 255, 204, 0.1);
    border: 1px solid var(--accent);
    transition: all 0.3s ease;
  }

  .nav-link:hover {
    background: rgba(0, 255, 204, 0.3);
    transform: translateY(-3px);
  }

  @media (max-width: 768px) {
    h1 {
      font-size: 2rem;
    }
    
    h2 {
      font-size: 1.5rem;
    }
    
    h3 {
      font-size: 1.2rem;
    }
    
    .article-section {
      padding: 20px;
    }
    
    .image-grid {
      grid-template-columns: 1fr;
    }
  }

  @keyframes float {
    0% { transform: translateY(0px); }
    50% { transform: translateY(-10px); }
    100% { transform: translateY(0px); }
  }

  .floating {
    animation: float 3s ease-in-out infinite;
  }