diff --git a/classifier/embedding_food_classifier_app.py b/classifier/embedding_food_classifier_app.py
index 5d34789..fe868a0 100644
--- a/classifier/embedding_food_classifier_app.py
+++ b/classifier/embedding_food_classifier_app.py
@@ -1490,8 +1490,12 @@ class EmbeddingFoodClassifierApp:
 
 
 def main():
-    # 创建支持拖放的窗口
-    root = TkinterDnD.Tk()
+    # 使用同时支持拖拽的 CTk 根窗口；先初始化 CTk，再初始化 TkinterDnD.Tk，保证 CTk 的缩放/几何属性就绪
+    class DnDCTk(ctk.CTk, TkinterDnD.Tk):
+        def __init__(self, *args, **kwargs):
+            ctk.CTk.__init__(self, *args, **kwargs)
+            TkinterDnD.Tk.__init__(self, *args, **kwargs)
+    root = DnDCTk()
     app = EmbeddingFoodClassifierApp(root)
     root.mainloop()