Update custom.css

custom.css

@@ -57,6 +57,12 @@ ol li, ul:not(.options) li {
         background-color: var(--neutral-950) !important;
     }
 }
+#chuanhu_chatbot {
+        height: calc(100vh - 200px);
+    }
+    #chuanhu_chatbot .wrap {
+        max-height: calc(100vh - 200px - var(--line-sm)*1rem - 2*var(--block-label-margin) );
+}
 /* 屏幕宽度大于等于500px的设备 */
 @media screen and (min-width: 500px) {
     #chuanhu_chatbot {