diff --git a/apps/blogai/components/header.tsx b/apps/blogai/components/header.tsx
index 72fe07b..1ac062d 100644
--- a/apps/blogai/components/header.tsx
+++ b/apps/blogai/components/header.tsx
@@ -151,7 +151,16 @@ export async function getWsBase() {
   return finalUrl;
 }
 
+function getApiBaseUrl(): string {
+  if (typeof window === "undefined" || !window.location) {
+    if (process.env.NODE_ENV === "development") {
+      console.error("❌ getApiBaseUrl 被错误地调用于非浏览器环境");
+    }
+    throw new Error("❌ getApiBaseUrl 必须在浏览器端调用");
+  }
 
+  return `${window.location.protocol}//${window.location.host}`;
+}
 export function DetailPageHeader({ data }: { data: any }) {
   const [loading, setLoading] = useState(false);
   const [statusText, setStatusText] = useState(data?.statusText || "加载中...");
@@ -444,7 +453,7 @@ export function DetailPageHeader({ data }: { data: any }) {
     }
   };
 
-
+  //软件更新
   const handleDownloadNewVersion = async () => {
     const download_url = data?.extra_data?.download_url;
     const callback_url = data?.extra_data?.callback_url;
@@ -463,7 +472,9 @@ export function DetailPageHeader({ data }: { data: any }) {
     setShowDownloadBar(true);         // 复用原进度条
 
     try {
-      const res = await fetch("https://ai.szaiai.com/api/v1/cloud/newversion", {
+      const apiHost = getApiBaseUrl(); // ✅ 会自动校验是否在客户端
+      // const res = await fetch("https://ai.szaiai.com/api/v1/cloud/newversion", {
+      const res = await fetch(`${apiHost}/api/v1/cloud/download`, {
         method: "POST",
         headers: { "Content-Type": "application/json" },
         body: JSON.stringify({
@@ -632,9 +643,11 @@ export function DetailPageHeader({ data }: { data: any }) {
                           return;
                         }
 
+                        
                         console.log("📥 调用下载接口...", { url: download_url, size, id });
-
-                        const res = await fetch("https://ai.szaiai.com/api/v1/cloud/download", {
+                        const apiHost = getApiBaseUrl(); // ✅ 会自动校验是否在客户端
+                        //const res = await fetch("https://ai.szaiai.com/api/v1/cloud/download", {
+                        const res = await fetch(`${apiHost}/api/v1/cloud/download`, {
                           method: "POST",
                           headers: {
                             "Content-Type": "application/json",