/* 基础样式 */
  body {
    margin: 0;
    padding: 0;
    font-family: 'Roboto', sans-serif;
    background: linear-gradient(135deg, #000066, #660099);
    color: #FFFFFF;
    line-height: 1.6;
  }

  /* 容器 */
  .container {
    width: 90%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 40px 0;
  }

  /* 标题样式 */
  h1, h2, h3, h4 {
    font-family: 'Monument Extended', sans-serif;
    color: #00FFFF;
    margin-bottom: 20px;
  }

  h1 {
    font-size: 3em;
    text-align: center;
    margin-top: 20px;
  }

  h2 {
    font-size: 2.5em;
    border-bottom: 2px solid #00FFFF;
    padding-bottom: 10px;
  }

  h3 {
    font-size: 2em;
    margin-top: 40px;
  }

  h4 {
    font-size: 1.5em;
    margin-top: 30px;
  }

  /* 段落样式 */
  p {
    font-size: 1.1em;
    margin-bottom: 20px;
    text-align: justify;
    padding: 0 10px;
  }

  /* 列表样式 */
  ul {
    list-style: disc inside;
    padding-left: 20px;
    margin-bottom: 20px;
  }

  li {
    margin-bottom: 10px;
  }

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

  code {
    color: #FFD700;
    font-family: 'Courier New', Courier, monospace;
  }

  /* 按钮样式 */
  .button {
    display: inline-block;
    padding: 10px 20px;
    background-color: #00FFFF;
    color: #000;
    text-decoration: none;
    border-radius: 5px;
    transition: transform 0.3s ease;
    font-weight: bold;
  }

  .button:hover {
    transform: scale(1.1);
  }

  /* 图片样式 */
  img {
    width: 100%;
    max-width: 320px;
    height: auto;
    margin: 10px;
    border-radius: 10px;
  }

  /* 网格布局 */
  .grid-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 20px;
    margin-top: 30px;
  }

  .grid-item {
    background-color: rgba(255, 255, 255, 0.2);
    padding: 20px;
    border-radius: 10px;
    transition: transform 0.3s ease;
  }

  .grid-item:hover {
    transform: scale(1.05);
  }

  /* 动画效果 */
  .fade-in {
    animation: fadeIn 1s ease-in-out;
  }

  @keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
  }

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

    h2 {
      font-size: 2em;
    }

    h3 {
      font-size: 1.8em;
    }

    p {
      font-size: 1em;
    }
  }

  @media (max-width: 1200px) {
    .container {
      width: 95%;
      padding: 30px 0;
    }

    h1 {
      font-size: 2.2em;
    }

    h2 {
      font-size: 1.8em;
    }

    .grid-container {
      grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    }
  }

  @media (max-width: 1024px) {
    h1 {
      font-size: 2em;
    }

    h2 {
      font-size: 1.6em;
    }

    h3 {
      font-size: 1.5em;
    }

    .grid-container {
      grid-template-columns: 1fr;
    }
  }

  @media (max-width: 768px) {
    h1 {
      font-size: 1.8em;
    }

    h2 {
      font-size: 1.4em;
    }

    .container {
      padding: 20px 0;
    }

    p {
      font-size: 0.95em;
    }
  }

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

    h2 {
      font-size: 1.2em;
    }

    p {
      font-size: 0.9em;
    }

    .button {
      padding: 8px 16px;
      font-size: 0.9em;
    }
  }

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

    h2 {
      font-size: 1em;
    }

    p {
      font-size: 0.85em;
    }

    .button {
      padding: 6px 12px;
      font-size: 0.8em;
    }
  }