diff --git a/components/canvas/CanvasChatPanel.tsx b/components/canvas/CanvasChatPanel.tsx
index 9ed8ab5..9b443fb 100644
--- a/components/canvas/CanvasChatPanel.tsx
+++ b/components/canvas/CanvasChatPanel.tsx
@@ -329,19 +329,19 @@ export function CanvasChatPanel({ chatId, initialMessages = [], onClose, onOpenF
           </Button>
           <button 
             type="button"
-            className="h-8 w-8 rounded-full hover:bg-muted inline-flex items-center justify-center bg-blue-500 text-white"
+            className="h-10 w-10 rounded-full inline-flex items-center justify-center bg-red-500 text-white border-4 border-yellow-400 animate-pulse"
             onClick={(e) => {
               e.preventDefault();
               e.stopPropagation();
-              alert('File list button clicked! onOpenFileList: ' + !!onOpenFileList);
+              alert('🎯 这是聊天面板中的文件列表按钮! onOpenFileList: ' + !!onOpenFileList);
               console.log('[CanvasChatPanel] File list button clicked, onOpenFileList:', !!onOpenFileList);
               if (onOpenFileList) {
                 onOpenFileList();
               }
             }}
-            title="已生成文件列表"
+            title="文件列表按钮 - 点我切换到文件列表"
           >
-            <LayoutGrid className="h-4 w-4" />
+            <LayoutGrid className="h-5 w-5" />
           </button>
           <Button variant="ghost" size="icon" className="h-8 w-8 rounded-full hover:bg-muted">
             <Maximize2 className="h-4 w-4" />