fix(md-embed): proper font size/weight inheritence

src/components/md-embed.tsx

@@ -42,7 +42,7 @@ customElement("md-embed", { headingBase: 0 }, (props, { element }) => {
   });
 
   return (
-    <div class="md-embed not-prose">
+    <div class="md-embed">
       <Show when={content.loading}>
         <div class="text-gray-400 italic">加载中...</div>
       </Show>

src/styles.css

@@ -84,6 +84,11 @@ icon.big .icon-label-stroke {
     }
 }
 
+/* md-embed — inherit parent font size (e.g. card layer font-size) */
+.md-embed .prose {
+    font-size: inherit;
+}
+
 /*alert*/
 
 .markdown-alert-title {