diff --git a/app/Http/Controllers/Api/HostController.php b/app/Http/Controllers/Api/HostController.php
index db4f124..e26e98c 100644
--- a/app/Http/Controllers/Api/HostController.php
+++ b/app/Http/Controllers/Api/HostController.php
@@ -31,8 +31,8 @@ public function update(HostRequest $request, Host $host): JsonResponse
 
         $user = $request->user();
 
-        if ($user->balance < 1) {
-            return $this->error('余额不足，无法开启计费项目。');
+        if ($user->balance < 0.5) {
+            return $this->error('余额不足，无法开启计费项目。请确保您的余额至少为 0.5 元，您当前有 ' . $user->balance . ' 元。');
         }
 
         $host->update([
diff --git a/app/Http/Controllers/Web/BalanceController.php b/app/Http/Controllers/Web/BalanceController.php
index 2facdd9..b8142c0 100644
--- a/app/Http/Controllers/Web/BalanceController.php
+++ b/app/Http/Controllers/Web/BalanceController.php
@@ -29,7 +29,7 @@ public function store(Request $request)
     {
         // 充值
         $this->validate($request, [
-            'amount' => 'required|integer|min:1|max:10000',
+            'amount' => 'required|integer|min:0.1|max:10000',
         ]);
 
         $user = $request->user();
@@ -39,7 +39,7 @@ public function store(Request $request)
 
         $data = [
             'user_id' => $user->id,
-            'amount' => $request->amount,
+            'amount' => $request->input('amount'),
             'payment' => 'alipay',
         ];