diff --git a/src/renderer/src/pages/home/Messages/MessageGroup.tsx b/src/renderer/src/pages/home/Messages/MessageGroup.tsx
index 13cc692b93..efa825e8ca 100644
--- a/src/renderer/src/pages/home/Messages/MessageGroup.tsx
+++ b/src/renderer/src/pages/home/Messages/MessageGroup.tsx
@@ -27,7 +27,8 @@ const MessageGroup = ({ messages, topic, registerMessageElement }: Props) => {
   const { isMultiSelectMode } = useChatContext(topic)
 
   const [multiModelMessageStyle, setMultiModelMessageStyle] = useState<MultiModelMessageStyle>(
-    messages[0].multiModelMessageStyle || multiModelMessageStyleSetting
+    // 对于单模型消息，采用简单的样式，避免 overflow 影响内部的 sticky 效果
+    messages.length < 2 ? 'fold' : messages[0].multiModelMessageStyle || multiModelMessageStyleSetting
   )
 
   const messageLength = messages.length