diff --git a/apps/desktop/src/components/ChatInterface.tsx b/apps/desktop/src/components/ChatInterface.tsx
index 3723e34..8e08e3d 100644
--- a/apps/desktop/src/components/ChatInterface.tsx
+++ b/apps/desktop/src/components/ChatInterface.tsx
@@ -361,9 +361,10 @@ export const ChatInterface: React.FC<ChatInterfaceProps> = ({
       {/* 聊天消息区域 */}
       <div
         ref={chatContainerRef}
-        className="absolute inset-0 overflow-y-auto p-4 space-y-6 bg-transparent chat-scroll"
+        className="absolute top-0 left-0 right-0 overflow-y-auto p-4 space-y-6 bg-transparent chat-scroll"
         style={{
-          paddingBottom: allTags.length > 0 ? '200px' : '120px'
+          bottom: allTags.length > 0 ? '200px' : '120px',
+          paddingBottom: '1rem'
         }}
       >
         {messages.length === 0 ? (