/* 引入字体 */
  @import url('https://fonts.googleapis.com/css2?family=Poppins:wght@400;600&family=Roboto:wght@400;700&display=swap');

  /* 全局样式 */
  body {
    margin: 0;
    padding: 0;
    font-family: 'Roboto', 'Poppins', sans-serif;
    background: linear-gradient(135deg, #002f6c, #4d1a7f, #008e9b);
    background-size: 200% 200%;
    animation: gradient-animation 10s infinite;
    color: #ffffff;
    overflow-x: hidden;
  }

  @keyframes gradient-animation {
    0% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
    100% { background-position: 0% 50%; }
  }

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

  /* 标题样式 */
  header {
    text-align: center;
    padding: 50px 20px;
    background: rgba(0, 0, 0, 0.3);
    border-radius: 10px;
    margin: 20px;
  }

  header h1 {
    font-family: 'Poppins', sans-serif;
    font-size: 3em;
    background: linear-gradient(90deg, #00ffcc, #007bff);
    -webkit-background-clip: text;
    color: transparent;
    animation: text-glow 5s infinite;
  }

  @keyframes text-glow {
    0%, 100% { text-shadow: 0 0 10px #00ffcc, 0 0 20px #00ffcc; }
    50% { text-shadow: 0 0 20px #007bff, 0 0 30px #007bff; }
  }

  /* 导航栏 */
  nav {
    display: flex;
    justify-content: center;
    gap: 30px;
    margin-bottom: 40px;
  }

  nav a {
    color: #ffffff;
    text-decoration: none;
    font-size: 1.2em;
    position: relative;
    transition: color 0.3s;
  }

  nav a:hover {
    color: #00ffcc;
  }

  nav a::after {
    content: '';
    display: block;
    width: 0;
    height: 2px;
    background: #00ffcc;
    transition: width 0.3s;
    position: absolute;
    bottom: -5px;
    left: 0;
  }

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

  /* 主要内容 */
  main {
    display: flex;
    flex-direction: column;
    gap: 40px;
  }

  section {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    border-radius: 15px;
    padding: 30px;
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.5);
  }

  section h2 {
    font-size: 2em;
    margin-bottom: 20px;
    color: #00ffcc;
  }

  section p, section ul, section table {
    font-size: 1em;
    line-height: 1.6;
  }

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

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

  section ul li::before {
    content: '•';
    color: #00ffcc;
    position: absolute;
    left: 0;
    top: 0;
  }

  pre {
    background: rgba(0, 0, 0, 0.5);
    padding: 15px;
    border-radius: 10px;
    overflow-x: auto;
    font-family: 'Roboto Mono', monospace;
  }

  code {
    color: #00ffcc;
  }

  table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 20px;
  }

  table, th, td {
    border: 1px solid #00ffcc;
  }

  th, td {
    padding: 10px;
    text-align: left;
  }

  th {
    background: rgba(0, 0, 0, 0.3);
  }

  /* 按钮样式 */
  .button {
    background-color: #007bff;
    color: white;
    padding: 12px 25px;
    border: none;
    border-radius: 5px;
    cursor: pointer;
    font-size: 1em;
    transition: all 0.3s ease;
    text-decoration: none;
    display: inline-block;
  }

  .button:hover {
    background-color: #0056b3;
    transform: scale(1.1);
  }

  /* 图片样式 */
  .images {
    display: flex;
    flex-wrap: wrap;
    gap: 15px;
    justify-content: center;
  }

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

  /* 样式设计参考提示 */
  .reference-note {
    text-align: center;
    font-size: 1.2em;
    margin: 30px 0;
    color: #ffcc00;
  }

  /* 响应式设计 */
  @media (max-width: 1440px) {
    header h1 {
      font-size: 2.5em;
    }
  }

  @media (max-width: 1200px) {
    .container {
      padding: 15px;
    }
  }

  @media (max-width: 1024px) {
    nav {
      gap: 20px;
    }

    section {
      padding: 25px;
    }
  }

  @media (max-width: 768px) {
    header h1 {
      font-size: 2em;
    }

    nav a {
      font-size: 1em;
    }
  }

  @media (max-width: 480px) {
    header h1 {
      font-size: 1.5em;
    }

    nav {
      flex-direction: column;
      gap: 10px;
    }

    section {
      padding: 20px;
    }

    .images img {
      max-width: 100%;
    }
  }

  @media (max-width: 320px) {
    header h1 {
      font-size: 1.2em;
    }

    nav a {
      font-size: 0.9em;
    }

    section {
      padding: 15px;
    }
  }