/* 全局样式 */
  body {
    margin: 0;
    padding: 0;
    font-family: 'Roboto', 'Inter', sans-serif;
    background: linear-gradient(135deg, #000428, #004e92);
    color: #ffffff;
    overflow-x: hidden;
  }

  /* 头部样式 */
  header {
    position: fixed;
    width: 100%;
    height: 60px;
    background: rgba(0, 0, 0, 0.7);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.5);
  }

  header h1 {
    font-family: 'Orbitron', sans-serif;
    font-size: 24px;
    color: #00ffcc;
    margin: 0;
    animation: neon-glow 2s ease-in-out infinite;
  }

  @keyframes neon-glow {
    0%, 100% {
      text-shadow: 0 0 5px #00ffcc, 0 0 10px #00ffcc, 0 0 20px #00ffcc, 0 0 40px #00ffcc;
    }
    50% {
      text-shadow: 0 0 10px #00ffcc, 0 0 20px #00ffcc, 0 0 30px #00ffcc, 0 0 50px #00ffcc;
    }
  }

  /* 主容器样式 */
  .container {
    padding-top: 80px;
    max-width: 1200px;
    margin: 0 auto;
    padding-left: 20px;
    padding-right: 20px;
  }

  /* 章节样式 */
  section {
    padding: 60px 0;
    position: relative;
  }

  section:nth-child(even) {
    background: rgba(255, 255, 255, 0.1);
  }

  section h2 {
    font-family: 'Orbitron', sans-serif;
    font-size: 32px;
    color: #ff4081;
    margin-bottom: 20px;
    text-align: center;
    animation: fade-in 2s ease-in-out;
  }

  section p {
    font-size: 18px;
    line-height: 1.8;
    margin-bottom: 20px;
    color: #e0e0e0;
  }

  section ul {
    list-style: none;
    padding: 0;
  }

  section ul li {
    margin-bottom: 10px;
    padding-left: 20px;
    position: relative;
    color: #b0bec5;
  }

  section ul li::before {
    content: '•';
    position: absolute;
    left: 0;
    color: #ff4081;
  }

  /* 动画效果 */
  .parallax {
    background: url('https://images.gptkong.com/demo/sample1.png') no-repeat center center;
    background-size: cover;
    height: 100vh;
    background-attachment: fixed;
    animation: aurora-move 15s linear infinite;
  }

  @keyframes aurora-move {
    0% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
    100% { background-position: 0% 50%; }
  }

  /* 代码块样式 */
  pre {
    background: rgba(0, 0, 0, 0.8);
    padding: 20px;
    border-radius: 8px;
    overflow-x: auto;
  }

  code {
    font-family: 'Courier New', Courier, monospace;
    color: #00e676;
  }

  /* 图片样式 */
  .image-gallery {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    justify-content: center;
  }

  .image-gallery img {
    width: 100%;
    max-width: 320px;
    height: auto;
    border-radius: 8px;
    transition: transform 0.3s ease;
  }

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

  /* 提示样式 */
  .reference-note {
    text-align: center;
    font-size: 16px;
    color: #ffeb3b;
    margin: 40px 0;
    animation: blink 1.5s step-start infinite;
  }

  @keyframes blink {
    50% { opacity: 0; }
  }

  /* 文章展示样式 */
  .demo-article {
    background: rgba(255, 255, 255, 0.05);
    padding: 40px;
    border-radius: 10px;
    margin-bottom: 60px;
  }

  .demo-article h2 {
    font-size: 28px;
    color: #81d4fa;
  }

  .demo-article h3 {
    font-size: 24px;
    color: #aed581;
    margin-top: 30px;
  }

  .demo-article h4 {
    font-size: 20px;
    color: #ffb74d;
    margin-top: 20px;
  }

  .demo-article ul li {
    padding-left: 25px;
  }

  .demo-article pre {
    background: #263238;
    color: #cfd8dc;
    padding: 15px;
    border-radius: 5px;
    overflow-x: auto;
    margin-bottom: 20px;
  }

  /* 响应式设计 */
  @media (max-width: 1440px) {
    section h2 {
      font-size: 28px;
    }

    section p {
      font-size: 16px;
    }
  }

  @media (max-width: 1200px) {
    .container {
      max-width: 1000px;
    }
  }

  @media (max-width: 1024px) {
    section {
      padding: 50px 0;
    }

    .image-gallery {
      flex-direction: column;
      align-items: center;
    }
  }

  @media (max-width: 768px) {
    header h1 {
      font-size: 20px;
    }

    section h2 {
      font-size: 24px;
    }

    section p {
      font-size: 16px;
    }
  }

  @media (max-width: 480px) {
    .container {
      padding-left: 10px;
      padding-right: 10px;
    }

    section h2 {
      font-size: 20px;
    }

    section p {
      font-size: 14px;
    }
  }

  @media (max-width: 320px) {
    header h1 {
      font-size: 18px;
    }

    section h2 {
      font-size: 18px;
    }

    section p {
      font-size: 12px;
    }
  }

  /* 链接样式 */
  a {
    color: #4fc3f7;
    text-decoration: none;
    position: relative;
    transition: color 0.3s ease;
  }

  a:hover {
    color: #81d4fa;
  }

  a[rel="nofollow"]::after {
    content: '';
  }