diff --git a/src/app/credits/page.tsx b/src/app/credits/page.tsx
index 89c2ca9..310d87f 100644
--- a/src/app/credits/page.tsx
+++ b/src/app/credits/page.tsx
@@ -195,47 +195,22 @@ export default function CreditsPage() {
 
     setIsTopUpLoading(true)
     try {
-      // 首先检查是否是开发环境
-      const isDevelopment = process.env.NODE_ENV === 'development'
-      
-      if (isDevelopment) {
-        // 开发环境：使用模拟充值
-        const response = await fetch('/api/credits/topup', {
-          method: 'POST',
-          headers: {
-            'Content-Type': 'application/json',
-          },
-          body: JSON.stringify({ amount }),
-        })
+      // 统一使用 Stripe 支付
+      const response = await fetch('/api/credits/stripe-topup', {
+        method: 'POST',
+        headers: {
+          'Content-Type': 'application/json',
+        },
+        body: JSON.stringify({ amount }),
+      })
 
-        const data = await response.json()
+      const data = await response.json()
 
-        if (response.ok && data.success) {
-          alert(`Successfully topped up $${amount}!`)
-          setShowTopUpModal(false)
-          setTopUpAmount('')
-          loadCreditData()
-        } else {
-          alert(data.error || 'Failed to process top-up')
-        }
+      if (response.ok && data.success && data.sessionUrl) {
+        // 重定向到 Stripe Checkout
+        window.location.href = data.sessionUrl
       } else {
-        // 生产环境：使用 Stripe
-        const response = await fetch('/api/credits/stripe-topup', {
-          method: 'POST',
-          headers: {
-            'Content-Type': 'application/json',
-          },
-          body: JSON.stringify({ amount }),
-        })
-
-        const data = await response.json()
-
-        if (response.ok && data.success && data.sessionUrl) {
-          // 重定向到 Stripe Checkout
-          window.location.href = data.sessionUrl
-        } else {
-          alert(data.error || 'Failed to create payment session')
-        }
+        alert(data.error || 'Failed to create payment session')
       }
     } catch (error) {
       console.error('Top-up error:', error)