diff --git a/src/services/auth/aliyun-sms.ts b/src/services/auth/aliyun-sms.ts
index c5538ad..c965078 100644
--- a/src/services/auth/aliyun-sms.ts
+++ b/src/services/auth/aliyun-sms.ts
@@ -1,11 +1,15 @@
-import DypnsApi from '@alicloud/dypnsapi20170525';
-import { SendSmsVerifyCodeRequest, CheckSmsVerifyCodeRequest } from '@alicloud/dypnsapi20170525/dist/models/model.js';
+import { createRequire } from 'node:module';
 import { $OpenApiUtil } from '@alicloud/openapi-core';
 import { RuntimeOptions } from '@darabonba/typescript';
 import { config } from '../../utils/config.js';
 import { AppError, ValidationError } from '../../utils/errors.js';
 
-const DypnsClient = DypnsApi.default;
+// 阿里云 SDK 是 Darabonba 生成的 CJS 模块，ESM import 在不同运行时下行为不一致
+// (Bun / Bun node 兼容模式 / Node.js 对 __esModule 和 exports.default 解析不同)
+// 使用 createRequire 直接走 CJS require 路径，绕开所有 ESM/CJS 互操作问题
+const require = createRequire(import.meta.url);
+const DypnsClient = require('@alicloud/dypnsapi20170525').default;
+const { SendSmsVerifyCodeRequest, CheckSmsVerifyCodeRequest } = require('@alicloud/dypnsapi20170525/dist/models/model.js');
 
 function createClient() {
   const openApiConfig = new $OpenApiUtil.Config({