/* 全局样式 */
  * {
      margin: 0;
      padding: 0;
      box-sizing: border-box;
  }

  body {
      background: linear-gradient(135deg, #0f2027, #203a43, #2c5364);
      color: #ffffff;
      font-family: 'Roboto', sans-serif;
      line-height: 1.6;
      padding: 20px;
  }

  /* 头部样式 */
  header {
      text-align: center;
      padding: 50px 20px;
      background: linear-gradient(45deg, #1e3c72, #2a5298);
      border-radius: 15px;
      box-shadow: 0 4px 15px rgba(0, 0, 0, 0.3);
  }

  header h1 {
      font-size: 2.5em;
      margin-bottom: 20px;
      color: #ff8c00;
  }

  header p {
      font-size: 1.2em;
      color: #d1d1d1;
  }

  /* 主容器 */
  .container {
      display: grid;
      grid-template-columns: 3fr 1fr;
      gap: 40px;
      margin-top: 40px;
  }

  /* 主内容区 */
  .main-content {
      background: rgba(255, 255, 255, 0.1);
      padding: 30px;
      border-radius: 10px;
      box-shadow: 0 4px 10px rgba(0, 0, 0, 0.2);
  }

  .main-content h2 {
      font-size: 2em;
      margin-bottom: 20px;
      color: #00ffff;
  }

  .main-content h3 {
      font-size: 1.5em;
      margin: 20px 0 10px;
      color: #ff69b4;
  }

  .main-content p {
      margin-bottom: 20px;
      color: #f0f0f0;
  }

  .main-content pre {
      background: #1c1c1c;
      padding: 15px;
      border-radius: 5px;
      overflow-x: auto;
      margin-bottom: 20px;
  }

  .main-content code {
      color: #00ff7f;
      font-family: 'Courier New', Courier, monospace;
  }

  /* 侧边栏 */
  .sidebar {
      background: rgba(255, 255, 255, 0.1);
      padding: 20px;
      border-radius: 10px;
      box-shadow: 0 4px 10px rgba(0, 0, 0, 0.2);
  }

  .sidebar h2 {
      font-size: 1.8em;
      margin-bottom: 15px;
      color: #ff4500;
  }

  .sidebar ul {
      list-style: none;
  }

  .sidebar ul li {
      margin-bottom: 10px;
  }

  .sidebar ul li a {
      color: #7fffd4;
      text-decoration: none;
      transition: color 0.3s ease;
  }

  .sidebar ul li a:hover {
      color: #ff6347;
  }

  /* 图片样式 */
  .images-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(100px, 1fr));
      gap: 10px;
      margin-top: 20px;
  }

  .images-grid img {
      width: 100%;
      height: auto;
      border-radius: 5px;
      transition: transform 0.3s ease;
  }

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

  /* 提示信息 */
  .reference-note {
      text-align: center;
      margin: 40px 0;
      font-size: 1.2em;
      color: #add8e6;
  }

  /* 响应式设计 */
  @media (max-width: 1440px) {
      .container {
          grid-template-columns: 3fr 1fr;
      }
  }

  @media (max-width: 1200px) {
      .container {
          grid-template-columns: 2fr 1fr;
      }
  }

  @media (max-width: 1024px) {
      .container {
          grid-template-columns: 1fr;
      }

      .sidebar {
          margin-top: 20px;
      }
  }

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

      .main-content h2 {
          font-size: 1.8em;
      }

      .main-content h3 {
          font-size: 1.3em;
      }
  }

  @media (max-width: 480px) {
      header {
          padding: 30px 10px;
      }

      .main-content {
          padding: 20px;
      }

      .images-grid {
          grid-template-columns: repeat(auto-fit, minmax(80px, 1fr));
      }
  }

  @media (max-width: 320px) {
      header h1 {
          font-size: 1.5em;
      }

      .main-content h2 {
          font-size: 1.5em;
      }

      .main-content h3 {
          font-size: 1.1em;
      }

      .reference-note {
          font-size: 1em;
      }
  }