diff --git a/Dockerfile.k3s b/Dockerfile.k3s
index 0a93a1b..6d3ac67 100644
--- a/Dockerfile.k3s
+++ b/Dockerfile.k3s
@@ -1,5 +1,5 @@
 # k3s / Kaniko：静态 SPA（方案 A）。API 由浏览器按站点域名直连
-#   app.test.ideship.com → api.test.ideship.com；其余 → api.ideship.com
+#   test.ideship.com → api.test.ideship.com；其余 → api.ideship.com
 # 镜像内 nginx 不做反代；也可用构建期 VITE_API_ORIGIN / VITE_API_ADMIN_URL 覆盖
 FROM docker.m.daocloud.io/library/node:20-alpine AS build
 WORKDIR /app
diff --git a/src/utils/rewriteBrowserApiPath.ts b/src/utils/rewriteBrowserApiPath.ts
index d3998b7..8431aeb 100644
--- a/src/utils/rewriteBrowserApiPath.ts
+++ b/src/utils/rewriteBrowserApiPath.ts
@@ -1,7 +1,7 @@
 /**
  * 方案 A：浏览器直连 API 网关 PATHBASE；开发仍走 Vite 代理旧路径。
  * - prod：https://api.ideship.com
- * - test（app.test.ideship.com）：https://api.test.ideship.com
+ * - test（test.ideship.com）：https://api.test.ideship.com
  * - 可用 VITE_API_ORIGIN 覆盖
  */
 
@@ -21,15 +21,20 @@ const SPA_API_PREFIXES = [
 const DEFAULT_PROD_API = 'https://api.ideship.com'
 const DEFAULT_TEST_API = 'https://api.test.ideship.com'
 
+function isTestFrontHost(hostname: string): boolean {
+  return (
+    hostname === 'test.ideship.com' ||
+    hostname === 'app.test.ideship.com' || // 旧域名兼容
+    hostname.endsWith('.test.ideship.com')
+  )
+}
+
 /** 生产/测试 API 根（无尾斜杠） */
 export function prodApiOrigin(): string {
   const override = (import.meta.env.VITE_API_ORIGIN as string | undefined)?.trim()
   if (override) return override.replace(/\/$/, '')
-  if (typeof window !== 'undefined') {
-    const h = window.location.hostname
-    if (h === 'app.test.ideship.com' || h.endsWith('.test.ideship.com')) {
-      return DEFAULT_TEST_API
-    }
+  if (typeof window !== 'undefined' && isTestFrontHost(window.location.hostname)) {
+    return DEFAULT_TEST_API
   }
   return DEFAULT_PROD_API
 }