diff --git a/src/renderer/src/pages/home/Markdown/Markdown.tsx b/src/renderer/src/pages/home/Markdown/Markdown.tsx
index 6ff47e57a8..af00712ca2 100644
--- a/src/renderer/src/pages/home/Markdown/Markdown.tsx
+++ b/src/renderer/src/pages/home/Markdown/Markdown.tsx
@@ -140,7 +140,7 @@ const Markdown: FC<Props> = ({ block, postProcess }) => {
     } as Partial<Components>
   }, [block.id])
 
-  if (messageContent.includes('<style>')) {
+  if (/<style\b[^>]*>/i.test(messageContent)) {
     components.style = MarkdownShadowDOMRenderer as any
   }