/* 全局样式 */
  body {
    margin: 0;
    padding: 0;
    font-family: 'Roboto', 'Lato', sans-serif;
    background: linear-gradient(135deg, #0A1931, #000000);
    color: #ffffff;
    overflow-x: hidden;
  }

  /* 头部样式 */
  header {
    background: rgba(10, 25, 49, 0.9);
    position: fixed;
    width: 100%;
    top: 0;
    left: 0;
    z-index: 1000;
    padding: 20px 40px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.5);
  }

  header h1 {
    font-family: 'Poppins', sans-serif;
    font-size: 24px;
    color: gold;
  }

  /* 导航栏样式 */
  nav {
    position: fixed;
    left: 0;
    top: 0;
    height: 100%;
    width: 200px;
    background: rgba(0, 0, 0, 0.7);
    padding-top: 80px;
    box-shadow: 2px 0 10px rgba(0, 0, 0, 0.5);
  }

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

  nav ul li {
    margin: 20px 0;
    text-align: center;
  }

  nav ul li a {
    color: #27AE60;
    text-decoration: none;
    font-size: 18px;
    transition: color 0.3s;
  }

  nav ul li a:hover {
    color: gold;
  }

  /* 主内容区样式 */
  .main-content {
    margin-left: 220px;
    padding: 100px 40px 40px 40px;
    background: rgba(10, 25, 49, 0.85);
    min-height: 100vh;
    box-sizing: border-box;
  }

  /* 区块样式 */
  section {
    margin-bottom: 40px;
  }

  section h2 {
    font-family: 'Montserrat', sans-serif;
    font-size: 28px;
    color: #8E44AD;
    margin-bottom: 20px;
  }

  section p {
    font-size: 16px;
    line-height: 1.6;
    margin-bottom: 20px;
  }

  /* 按钮样式 */
  .button {
    background: linear-gradient(90deg, #8E44AD, #27AE60);
    color: #ffffff;
    border: none;
    padding: 10px 20px;
    cursor: pointer;
    border-radius: 5px;
    transition: transform 0.2s;
  }

  .button:hover {
    transform: scale(1.05);
  }

  /* 代码块样式 */
  pre {
    background: rgba(255, 255, 255, 0.1);
    padding: 15px;
    border-radius: 5px;
    overflow-x: auto;
  }

  code {
    color: #27AE60;
    font-family: 'Courier New', Courier, monospace;
  }

  /* 图片展示样式 */
  .gallery {
    display: flex;
    flex-wrap: wrap;
    gap: 20px;
  }

  .gallery img {
    width: 100%;
    max-width: 320px;
    height: auto;
    border-radius: 10px;
  }

  /* 样例数据展示样式 */
  .sample-data {
    background: rgba(0, 0, 0, 0.6);
    padding: 20px;
    border-radius: 10px;
  }

  /* 响应式设计 */
  @media (max-width: 1440px) {
    header h1 {
      font-size: 22px;
    }

    nav {
      width: 180px;
    }

    nav ul li a {
      font-size: 16px;
    }

    .main-content {
      margin-left: 200px;
      padding: 80px 30px 30px 30px;
    }

    section h2 {
      font-size: 26px;
    }
  }

  @media (max-width: 1200px) {
    nav {
      width: 160px;
    }

    .main-content {
      margin-left: 180px;
    }

    section h2 {
      font-size: 24px;
    }
  }

  @media (max-width: 1024px) {
    nav {
      width: 140px;
    }

    .main-content {
      margin-left: 160px;
      padding: 60px 20px 20px 20px;
    }

    section h2 {
      font-size: 22px;
    }
  }

  @media (max-width: 768px) {
    nav {
      width: 100%;
      height: auto;
      position: relative;
      padding: 10px 0;
    }

    nav ul {
      display: flex;
      justify-content: space-around;
    }

    nav ul li {
      margin: 10px 0;
    }

    .main-content {
      margin-left: 0;
      padding: 80px 20px 20px 20px;
    }

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

  @media (max-width: 480px) {
    header h1 {
      font-size: 20px;
    }

    nav ul li a {
      font-size: 14px;
    }

    section h2 {
      font-size: 20px;
    }

    .button {
      padding: 8px 16px;
    }

    pre {
      font-size: 14px;
    }
  }

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

    nav ul li a {
      font-size: 12px;
    }

    section h2 {
      font-size: 18px;
    }

    .button {
      padding: 6px 12px;
    }

    pre {
      font-size: 12px;
    }
  }

  /* 动画样式 */
  @keyframes aurora-move {
    0% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
    100% { background-position: 0% 50%; }
  }

  .aurora {
    background: radial-gradient(circle, rgb(255, 87, 34), transparent);
    animation: aurora-move 15s linear infinite;
  }

  /* 高亮样式 */
  .highlight {
    color: gold;
  }

  /* 排版调整 */
  h3, h4 {
    font-family: 'Montserrat', sans-serif;
    color: #27AE60;
    margin-bottom: 15px;
  }

  ul {
    list-style: disc inside;
    margin-bottom: 20px;
  }

  /* 引用提示样式 */
  .reference-note {
    text-align: center;
    margin-top: 40px;
    font-size: 16px;
    color: #ffffff;
  }