.markdown-container {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Helvetica, Arial, sans-serif;
    line-height: 1.6;
    max-width: 800px;
    margin: 0 auto;
    padding: 20px;
  }
  .markdown-container h1 { 
    border-bottom: 2px solid #eee; 
    padding-bottom: 10px; 
  }
  .markdown-container h2 { 
    border-bottom: 1px solid #eee; 
    padding-bottom: 5px; 
  }
  .markdown-container code { 
    background: #f5f7f9; 
    padding: 2px 5px; 
    border-radius: 3px;
    vertical-align: bottom;
  }
  .markdown-container pre {
    padding: 15px; 
    border-radius: 5px; 
    overflow: auto;
  }
  .markdown-container blockquote {
    border-left: 4px solid #ddd;
    padding-left: 15px;
    color: #666;
    margin-left: 0;
  }
  .markdown-container table {
    border-collapse: collapse;
    width: 100%;
    border-radius: 8px;
    box-shadow: 0 0 5px #0005;
    overflow: hidden;
  }
  .markdown-container th, .markdown-container td {
    border: 1px solid #ddd;
    padding: 8px;
    text-align: left;
  }
  .markdown-container th {
    background-color: #f5f7f9;
  }
  /* KaTeX 公式样式 */
  .katex { 
    font-size: 1.1em; 
  }
  code {
    box-shadow: 0 0 5px #0005;
    display: inline-block;
    overflow-x: auto;
    border-radius: 8px;
  }
  pre code{
    display: block;
    padding: 1em;
  }
  /* 新增代码块容器定位 */
  .code-block {
      position: relative;
  }
  /* 复制按钮样式 */
  .copy-button {
    position: absolute;
    top: 14px;
    right: 14px;
    padding: 4px 8px;
    background: #f0f0f0;
    border: 1px solid #ccc;
    border-radius: 8px;
    cursor: pointer;
    font-size: 12px;
    opacity: 0.7;
    transition: opacity 0.2s;
}

.copy-button:hover {
    opacity: 1;
    background: #e0e0e0;
}