/* 代码块样式 */
pre {
  background: #2d2d2d;
  color: #f8f8f2;
  padding: 15px;
  border-radius: 8px;
  overflow-x: auto;
  margin: 10px 0;
}
code {
  font-family: 'Courier New', monospace;
}
.markdown-content h1,
.markdown-content h2,
.markdown-content h3,
.markdown-content h4 {
  color: #667eea;
  margin: 15px 0 10px 0;
  font-weight: 600;
}
.markdown-content h1 {
  font-size: 1.8em;
  border-bottom: 2px solid #667eea;
  padding-bottom: 8px;
}
.markdown-content h2 {
  font-size: 1.5em;
  border-bottom: 1px solid #e0e0e0;
  padding-bottom: 6px;
}
.markdown-content h3 {
  font-size: 1.3em;
}
.markdown-content h4 {
  font-size: 1.1em;
}
.markdown-content ul,
.markdown-content ol {
  margin-left: 25px;
  margin-top: 10px;
  margin-bottom: 10px;
}
.markdown-content li {
  margin: 8px 0;
  line-height: 1.6;
}
.markdown-content p {
  margin: 10px 0;
  line-height: 1.7;
}
.markdown-content strong {
  color: #333;
  font-weight: 600;
}
.markdown-content em {
  font-style: italic;
  color: #555;
}
.markdown-content blockquote {
  border-left: 4px solid #667eea;
  padding-left: 15px;
  margin: 15px 0;
  color: #666;
  font-style: italic;
  background: #f9f9f9;
  padding: 10px 15px;
  border-radius: 4px;
}
.markdown-content hr {
  border: none;
  border-top: 2px solid #e0e0e0;
  margin: 20px 0;
}
.markdown-content a {
  color: #667eea;
  text-decoration: none;
  border-bottom: 1px solid #667eea;
}
.markdown-content a:hover {
  color: #764ba2;
  border-bottom-color: #764ba2;
}
.markdown-content table {
  border-collapse: collapse;
  width: 100%;
  margin: 15px 0;
}
.markdown-content table th,
.markdown-content table td {
  border: 1px solid #ddd;
  padding: 10px;
  text-align: left;
}
.markdown-content table th {
  background: #667eea;
  color: white;
  font-weight: 600;
}
.markdown-content table tr:nth-child(even) {
  background: #f9f9f9;
}