diff --git a/src/lib/utils/index.ts b/src/lib/utils/index.ts
index 9b2318ab0..48ee42a6c 100644
--- a/src/lib/utils/index.ts
+++ b/src/lib/utils/index.ts
@@ -889,13 +889,19 @@ export const removeDetails = (content, types) => {
 			);
 		}
 		return segment;
-	});
+	}).trim();
 };
 
 export const removeAllDetails = (content) => {
+	// First pass: strip <details> blocks on the full string before code-fence
+	// splitting, so blocks whose body contains triple backticks are caught.
+	// (replaceOutsideCode splits on ``` fences, which breaks the <details>
+	// regex when the opening and closing tags land in different segments.)
+	content = content.replace(/<details[^>]*>[\s\S]*?<\/details>/gi, '');
+	// Second pass: catch any remaining blocks that live outside code fences
 	return replaceOutsideCode(content, (segment) => {
 		return segment.replace(/<details[^>]*>.*?<\/details>/gis, '');
-	});
+	}).trim();
 };
 
 export const processDetails = (content) => {