/* 基础样式 */
  body {
    margin: 0;
    padding: 0;
    font-family: 'Roboto', sans-serif;
    background: linear-gradient(135deg, #0f2027, #203a43, #2c5364);
    color: #ffffff;
    overflow-x: hidden;
  }

  /* 容器 */
  .container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 40px 20px;
  }

  /* 标题样式 */
  h1, h2, h3, h4 {
    font-family: 'Futura', sans-serif;
    color: #ffffff;
    text-shadow: 0 2px 4px rgba(0,0,0,0.5);
  }

  h1 {
    font-size: 48px;
    letter-spacing: 3px;
    text-align: center;
    margin-top: 60px;
    margin-bottom: 40px;
  }

  h2 {
    font-size: 36px;
    letter-spacing: 2px;
    margin-top: 40px;
    margin-bottom: 20px;
  }

  h3 {
    font-size: 28px;
    letter-spacing: 1.5px;
    margin-top: 30px;
    margin-bottom: 15px;
  }

  h4 {
    font-size: 22px;
    letter-spacing: 1px;
    margin-top: 25px;
    margin-bottom: 10px;
  }

  /* 段落样式 */
  p {
    font-size: 16px;
    color: #e0e0e0;
    margin-bottom: 20px;
    line-height: 1.8;
  }

  /* 链接样式 */
  a {
    color: #6c5ce7;
    text-decoration: none;
    position: relative;
    transition: color 0.3s ease;
  }

  a:hover {
    color: #a29bfe;
  }

  /* 内部链接添加rel="nofollow" */
  a[rel="nofollow"] {
    /* 现定义样式，无需特别变化 */
  }

  /* 代码块样式 */
  pre {
    background: rgba(255, 255, 255, 0.1);
    padding: 20px;
    border-radius: 8px;
    overflow-x: auto;
    margin-bottom: 25px;
  }

  code {
    font-family: 'Courier New', monospace;
    color: #dfe6e9;
    font-size: 14px;
  }

  /* 表格样式 */
  table {
    width: 100%;
    border-collapse: collapse;
    margin-bottom: 25px;
  }

  th, td {
    border: 1px solid rgba(255, 255, 255, 0.3);
    padding: 12px;
    text-align: left;
  }

  th {
    background: rgba(108, 92, 231, 0.5);
    color: #ffffff;
  }

  td {
    background: rgba(108, 92, 231, 0.2);
    color: #dfe6e9;
  }

  /* 按钮样式 */
  .button {
    position: relative;
    padding: 12px 24px;
    background-color: #00adb5;
    color: #fff;
    border: none;
    cursor: pointer;
    transition: all 0.3s ease;
    border-radius: 5px;
    font-size: 16px;
  }

  .button::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(255, 255, 255, 0.3);
    border-radius: 5px;
    opacity: 0;
    transform: scale(1.2);
    transition: all 0.3s ease;
  }

  .button:hover::before {
    opacity: 1;
    transform: scale(1);
  }

  /* 图片样式 */
  img {
    max-width: 100%;
    height: auto;
    display: block;
    margin: 20px 0;
    border-radius: 10px;
  }

  /* 响应式设计 */
  @media (max-width: 1440px) {
    .container {
      max-width: 1100px;
    }
  }

  @media (max-width: 1200px) {
    .container {
      max-width: 1000px;
      padding: 30px 15px;
    }
  }

  @media (max-width: 1024px) {
    h1 {
      font-size: 42px;
    }
    h2 {
      font-size: 32px;
    }
    h3 {
      font-size: 24px;
    }
    p {
      font-size: 15px;
    }
  }

  @media (max-width: 768px) {
    .container {
      padding: 20px 10px;
    }
    h1 {
      font-size: 36px;
    }
    h2 {
      font-size: 28px;
    }
    h3 {
      font-size: 20px;
    }
    p {
      font-size: 14px;
    }
  }

  @media (max-width: 480px) {
    h1 {
      font-size: 30px;
    }
    h2 {
      font-size: 24px;
    }
    h3 {
      font-size: 18px;
    }
    p {
      font-size: 13px;
    }
  }

  @media (max-width: 320px) {
    h1 {
      font-size: 24px;
    }
    h2 {
      font-size: 20px;
    }
    h3 {
      font-size: 16px;
    }
    p {
      font-size: 12px;
    }
  }

  /* 动画效果 */
  .particle-effect {
    position: fixed;
    width: 100%;
    height: 100%;
    top: 0;
    left: 0;
    pointer-events: none;
    background: transparent;
    /* 通过JavaScript实现粒子动画 */
  }

  /* 视觉元素 */
  .gradient-box {
    background: linear-gradient(135deg, rgba(108,92,231,0.5), rgba(156,39,176,0.5));
    border-radius: 10px;
    padding: 20px;
    margin-bottom: 25px;
  }

  /* 固定侧边导航栏样式（假设有） */
  .sidebar {
    position: fixed;
    top: 0;
    left: 0;
    width: 250px;
    height: 100%;
    background: rgba(32, 58, 67, 0.9);
    padding: 20px;
    box-sizing: border-box;
  }

  .sidebar a {
    display: block;
    margin-bottom: 15px;
    color: #ffffff;
    font-size: 18px;
  }

  .sidebar a:hover {
    color: #a29bfe;
  }

  /* 主要内容区域的偏移，避免与侧边导航栏重叠 */
  .main-content {
    margin-left: 270px;
    padding: 20px;
  }

  @media (max-width: 1024px) {
    .sidebar {
      width: 200px;
    }
    .main-content {
      margin-left: 220px;
    }
  }

  @media (max-width: 768px) {
    .sidebar {
      display: none;
    }
    .main-content {
      margin-left: 0;
    }
  }