diff --git a/assets/custom.css b/assets/custom.css
index 14b5e9c..da7ae66 100644
--- a/assets/custom.css
+++ b/assets/custom.css
@@ -63,7 +63,7 @@ ol:not(.options), ul:not(.options) {
 /* 屏幕宽度大于等于500px的设备 */
 #chuanhu_chatbot {
         height: 100%;
-        min-height: 600px;
+        min-height: 400px;
     }
 /* 对话气泡 */
 [class *= "message"] {