diff --git a/vite.config.ts b/vite.config.ts
index bea0192..f81a21c 100644
--- a/vite.config.ts
+++ b/vite.config.ts
@@ -3,12 +3,31 @@ import react from "@vitejs/plugin-react";
 import tailwindcss from "@tailwindcss/vite";
 import path from "path";
 
+// 云服务器公网 IP：设置环境变量 PUBLIC_HOST=139.196.48.8 可在控制台显示公网访问地址
+const publicHost = process.env.PUBLIC_HOST;
+const port = 1420;
+
 export default defineConfig({
   server: {
-    port: 1420,
-    host: true, // 监听 0.0.0.0，支持公网 IP / 云服务器访问
+    port,
+    host: true, // 监听 0.0.0.0，支持公网访问
+    allowedHosts: publicHost ? [publicHost] : undefined,
   },
-  plugins: [react(), tailwindcss()],
+  plugins: [
+    react(),
+    tailwindcss(),
+    // 云服务器：启动时打印公网访问地址
+    publicHost
+      ? {
+          name: "log-public-url",
+          configureServer() {
+            return () => {
+              console.log(`\n  ➜  公网:   http://${publicHost}:${port}/\n`);
+            };
+          },
+        }
+      : undefined,
+  ].filter(Boolean),
   resolve: {
     alias: {
       "@": path.resolve(__dirname, "./src"),