diff --git a/templates/index.html b/templates/index.html
index 405b77c..90ea427 100644
--- a/templates/index.html
+++ b/templates/index.html
@@ -525,9 +525,9 @@
                 <div class="control-group">
                     <label class="text-sm text-gray-600">叠加显示:</label>
                     <select id="tileProduct" class="px-2 py-1 border border-gray-300 rounded text-sm">
-                        <option value="none" selected>不显示</option>
+                        <option value="none">不显示</option>
                         <option value="rain">1h 实际降雨</option>
-                        <option value="radar">水汽含量</option>
+                        <option value="radar" selected>水汽含量</option>
                     </select>
                 </div>
                 <div class="control-group">