diff --git a/app/Http/Controllers/Api/H5ProfileController.php b/app/Http/Controllers/Api/H5ProfileController.php
index eee2985..02b7fcc 100644
--- a/app/Http/Controllers/Api/H5ProfileController.php
+++ b/app/Http/Controllers/Api/H5ProfileController.php
@@ -3,9 +3,12 @@
 namespace App\Http\Controllers\Api;
 
 use App\Http\Controllers\Controller;
+use App\Models\Reservation;
 use App\Models\WechatUser;
 use Illuminate\Http\JsonResponse;
 use Illuminate\Http\Request;
+use Illuminate\Support\Facades\DB;
+
 class H5ProfileController extends Controller
 {
     public function show(Request $request): JsonResponse
@@ -36,12 +39,23 @@ class H5ProfileController extends Controller
             'avatar_url' => ['nullable', 'string', 'max:500'],
         ]);
 
-        $user->real_name = $data['real_name'];
-        $user->phone = $data['phone'];
-        if (array_key_exists('avatar_url', $data) && $data['avatar_url'] !== null && $data['avatar_url'] !== '') {
-            $user->avatar_url = $data['avatar_url'];
-        }
-        $user->save();
+        $phone = $data['phone'];
+
+        DB::transaction(function () use ($user, $data, $phone): void {
+            $user->real_name = $data['real_name'];
+            $user->phone = $phone;
+            if (array_key_exists('avatar_url', $data) && $data['avatar_url'] !== null && $data['avatar_url'] !== '') {
+                $user->avatar_url = $data['avatar_url'];
+            }
+            $user->save();
+
+            // 曾无微信态预约（wechat_user_id 为空）：资料里手机号与 visitor_phone 一致时补绑到当前微信号；已有 wechat_user_id 的订单永不覆盖
+            Reservation::query()
+                ->whereNull('wechat_user_id')
+                ->whereNotNull('visitor_phone')
+                ->where('visitor_phone', $phone)
+                ->update(['wechat_user_id' => $user->id]);
+        });
 
         return response()->json([
             'message' => '保存成功',