.mermaid .code-widget {
  display: none !important;
}

/* 去掉容器和 svg 的背景 */
.mermaid,
.mermaid svg {
  display: block;
  margin: 0 auto;
  max-width: 100%;
  height: auto !important;
  background: transparent !important;
}

/* 减少上下留白 */
.mermaid {
  margin: 1rem 0 !important;
  padding: 0 !important;
}