/* ============= 列印 PDF 設定 ============= */
@page {
  size: A4 portrait;
  margin: 2.5cm;
  }

.markdown-source-view, .markdown-preview-view, .markdown-preview-view.is-readable-line-width .markdown-preview-sizer {
  max-width: 600px;
  margin: auto;
  }