diff --git a/app/common.php b/app/common.php
index 37309be1..1fa13ee4 100644
--- a/app/common.php
+++ b/app/common.php
@@ -104,6 +104,18 @@ if (!function_exists('array_to_tree')) {
     }
 }
 
+if (!function_exists('array_flatten')) {
+    /**
+     * 将多维数组转换为一维数组
+     * @param array $array
+     * @return array
+     */
+    function array_flatten(array $array, int $depth = 1): array
+    {
+        return \think\helper\Arr::flatten($array, $depth);
+    }
+}
+
 if (!function_exists('thumb')) {
     /**
      * 获取缩略图
diff --git a/app/index/common.php b/app/index/common.php
index 7fc6e0a6..7e901805 100644
--- a/app/index/common.php
+++ b/app/index/common.php
@@ -111,15 +111,3 @@ if (!function_exists('lang_i18n')) {
         return Lang::get($lang_key, $vars, $lang);
     }
 }
-
-if (!function_exists('array_flatten')) {
-    /**
-     * 将多维数组转换为一维数组
-     * @param array $array
-     * @return array
-     */
-    function array_flatten(array $array, int $depth = 1): array
-    {
-        return \think\helper\Arr::flatten($array, $depth);
-    }
-}
diff --git a/app/index/view/mobile/about_us/introduction.html b/app/index/view/mobile/about_us/introduction.html
index 603a1a34..b401bce3 100644
--- a/app/index/view/mobile/about_us/introduction.html
+++ b/app/index/view/mobile/about_us/introduction.html
@@ -29,7 +29,7 @@
         <div class="iotb_part2 iotb_part22">
             <h1 class="iotbt1">{:lang_i18n('为您提供专属定制服务')}</h1>
             <div class="fdimgs wcu_list">
-                {assign name="flat_service" value=":\think\helper\Arr::flatMap(fn($item) => $item, $service)" /}
+                {assign name="flat_service" value=":array_flatten($service)" /}
                 {volist name="flat_service" id="fs"}
                 <div class="wcu_ltem">
                     <img src="{$fs.image}" alt="" class="fbit">
@@ -43,7 +43,7 @@
         <div class="iotb_part2">
             <h1 class="iotbt1">{:lang_i18n('对于不同的情况')}</h1>
             <div class="fdimgs wcu_list">
-                {assign name="flat_difference" value=":\think\helper\Arr::flatMap(fn($item) => $item, $difference)" /}
+                {assign name="flat_difference" value=":array_flatten($difference)" /}
                 {volist name="flat_difference" id="di"}
                 <div class="wcu_ltem">
                     <img src="{$di.image}" alt="" class="fbit">
diff --git a/app/index/view/mobile/attachment/video.html b/app/index/view/mobile/attachment/video.html
index 19d18ea6..71f4704d 100644
--- a/app/index/view/mobile/attachment/video.html
+++ b/app/index/view/mobile/attachment/video.html
@@ -20,7 +20,7 @@
         </div>
         <div class="infolist">
             {notempty name="videos"}
-            {assign name="flat_videos" value=":\think\helper\Arr::flatMap(fn($item) => $item->toArray(), $videos->items())" /}
+            {assign name="flat_videos" value=":array_flatten($videos->items())" /}
             {volist name="flat_videos" id="vo"}
             <div class="vd-item">
                 <video controls="" poster="{$vo.image|default=''}">