diff --git a/src/services/aiService.ts b/src/services/aiService.ts
index 8c4ab8a..08baf89 100644
--- a/src/services/aiService.ts
+++ b/src/services/aiService.ts
@@ -4,7 +4,7 @@
  * Validates: Requirements 12.1-12.6
  */
 
-import api from './api';
+import api, { API_BASE_URL } from './api';
 import type {
   ApiResponse,
   AIChatResponse,
@@ -108,7 +108,7 @@ export async function streamChatMessage(
   const token = localStorage.getItem('token'); // Assuming auth token is stored here
 
   // Use fetch directly for streaming support
-  const response = await fetch(`${import.meta.env.VITE_API_BASE_URL}/ai/chat/stream`, {
+  const response = await fetch(`${API_BASE_URL}/ai/chat/stream`, {
     method: 'POST',
     headers: {
       'Content-Type': 'application/json',
diff --git a/src/services/api.ts b/src/services/api.ts
index 3a42bd9..06e7926 100644
--- a/src/services/api.ts
+++ b/src/services/api.ts
@@ -7,7 +7,8 @@
 // 优先使用环境变量配置
 // 开发环境 (.env.development): http://localhost:2612/api/v1
 // 生产环境 (.env.production): /api/v1
-const API_BASE_URL = import.meta.env.VITE_API_BASE_URL ||
+// 生产环境 (.env.production): /api/v1
+export const API_BASE_URL = import.meta.env.VITE_API_BASE_URL ||
   ((window.location.hostname === 'localhost' || window.location.hostname === '127.0.0.1')
     ? 'http://localhost:2612/api/v1'
     : '/api/v1');