/* Mermaid 图自适应页面宽度：超出时等比缩放到容器 100% /
/ 阅读视图 /
.markdown-preview-view .mermaid svg,
.markdown-rendered .mermaid svg,
/ 实时预览 (Live Preview) /
.markdown-source-view.mod-cm6 .mermaid svg,
/ 嵌入块 / 悬浮预览 / 弹窗 */
.markdown-embed .mermaid svg,
.markdown-embed-content .mermaid svg,
.popover.hover-popover .mermaid svg {
max-width: 100% !important;
height: auto;
}