diff --git a/src/admin/.dockerignore b/src/admin/.dockerignore
index 82cabad..542efd8 100644
--- a/src/admin/.dockerignore
+++ b/src/admin/.dockerignore
@@ -2,7 +2,6 @@ node_modules
 dist
 .git
 .gitignore
-.env
 .env.local
 .env.*.local
 npm-debug.log*
diff --git a/src/frontend/.dockerignore b/src/frontend/.dockerignore
index 82cabad..27082db 100644
--- a/src/frontend/.dockerignore
+++ b/src/frontend/.dockerignore
@@ -1,8 +1,6 @@
 node_modules
-dist
 .git
 .gitignore
-.env
 .env.local
 .env.*.local
 npm-debug.log*
diff --git a/src/frontend/.env b/src/frontend/.env
index d91b694..1cc88eb 100644
--- a/src/frontend/.env
+++ b/src/frontend/.env
@@ -1 +1,3 @@
+# 生产环境配置
+# API 基础 URL - 使用相对路径，由 nginx 代理到后端
 VITE_API_BASE_URL=/api
\ No newline at end of file
diff --git a/src/frontend/.env.development b/src/frontend/.env.development
new file mode 100644
index 0000000..84f716d
--- /dev/null
+++ b/src/frontend/.env.development
@@ -0,0 +1,3 @@
+# 开发环境配置
+# API 基础 URL - 开发环境直接访问后端
+VITE_API_BASE_URL=/api
diff --git a/src/frontend/.env.production b/src/frontend/.env.production
new file mode 100644
index 0000000..2905033
--- /dev/null
+++ b/src/frontend/.env.production
@@ -0,0 +1,3 @@
+# 生产环境配置
+# API 基础 URL - 使用相对路径，由 nginx 代理到后端
+VITE_API_BASE_URL=/api
diff --git a/src/frontend/Dockerfile b/src/frontend/Dockerfile
index eda9b14..402fa06 100644
--- a/src/frontend/Dockerfile
+++ b/src/frontend/Dockerfile
@@ -1,25 +1,8 @@
-# 构建阶段
-FROM node:20-alpine AS builder
-
-WORKDIR /app
-
-# 复制 package 文件
-COPY package*.json ./
-
-# 安装依赖
-RUN npm install
-
-# 复制源代码
-COPY . .
-
-# 构建生产版本
-RUN npm run build
-
-# 生产阶段
+# 生产阶段 - 直接使用本地构建的 dist
 FROM nginx:alpine
 
-# 复制构建产物到 nginx
-COPY --from=builder /app/dist /usr/share/nginx/html
+# 复制本地构建产物到 nginx
+COPY dist /usr/share/nginx/html
 
 # 复制 nginx 配置
 COPY nginx.conf /etc/nginx/conf.d/default.conf
diff --git a/src/frontend/src/App.vue b/src/frontend/src/App.vue
index e9ed0a0..4a44774 100644
--- a/src/frontend/src/App.vue
+++ b/src/frontend/src/App.vue
@@ -1,6 +1,7 @@
 <script setup lang="ts">
 import { onMounted } from 'vue'
 import { useAuthStore } from '@/stores/auth'
+import BuildInfo from '@/components/BuildInfo.vue'
 
 const authStore = useAuthStore()
 
@@ -11,6 +12,7 @@ onMounted(async () => {
 
 <template>
   <router-view />
+  <BuildInfo />
 </template>
 
 <style>
diff --git a/src/frontend/src/api/auth.ts b/src/frontend/src/api/auth.ts
index fef7bc4..4730325 100644
--- a/src/frontend/src/api/auth.ts
+++ b/src/frontend/src/api/auth.ts
@@ -2,7 +2,7 @@ import axios from 'axios'
 import { tokenManager } from './client'
 import type { AuthResponse, LoginRequest, RegisterRequest } from '@/types'
 
-const API_BASE_URL = import.meta.env.VITE_API_BASE_URL || 'http://localhost:5000/api'
+const API_BASE_URL = import.meta.env.VITE_API_BASE_URL || '/api'
 
 // 生成设备指纹
 function generateDeviceFingerprint(): string {
diff --git a/src/frontend/src/api/client.ts b/src/frontend/src/api/client.ts
index 49dcf03..90f6c0a 100644
--- a/src/frontend/src/api/client.ts
+++ b/src/frontend/src/api/client.ts
@@ -3,7 +3,7 @@ import type { ApiResponse } from '@/types'
 
 // 创建 axios 实例
 const apiClient: AxiosInstance = axios.create({
-  baseURL: import.meta.env.VITE_API_BASE_URL || 'http://localhost:5000/api',
+  baseURL: import.meta.env.VITE_API_BASE_URL || '/api',
   timeout: 30000,
   headers: {
     'Content-Type': 'application/json'
diff --git a/src/frontend/src/components/BuildInfo.vue b/src/frontend/src/components/BuildInfo.vue
new file mode 100644
index 0000000..4b7f3ea
--- /dev/null
+++ b/src/frontend/src/components/BuildInfo.vue
@@ -0,0 +1,39 @@
+<template>
+  <div class="build-info">
+    <span>构建时间: {{ buildTime }}</span>
+    <span class="separator">|</span>
+    <span>API: {{ apiBaseUrl }}</span>
+    <span class="separator">|</span>
+    <span>模式: {{ buildMode }}</span>
+  </div>
+</template>
+
+<script setup lang="ts">
+const buildTime = __BUILD_TIME__
+const apiBaseUrl = __API_BASE_URL__
+const buildMode = __BUILD_MODE__
+</script>
+
+<style scoped>
+.build-info {
+  position: fixed;
+  bottom: 0;
+  left: 0;
+  right: 0;
+  background: rgba(0, 0, 0, 0.7);
+  color: #fff;
+  padding: 8px 16px;
+  font-size: 12px;
+  text-align: center;
+  z-index: 9999;
+  display: flex;
+  justify-content: center;
+  align-items: center;
+  gap: 8px;
+  font-family: monospace;
+}
+
+.separator {
+  color: #666;
+}
+</style>
diff --git a/src/frontend/src/env.d.ts b/src/frontend/src/env.d.ts
new file mode 100644
index 0000000..d326cba
--- /dev/null
+++ b/src/frontend/src/env.d.ts
@@ -0,0 +1,4 @@
+// 构建信息类型定义
+declare const __BUILD_TIME__: string
+declare const __API_BASE_URL__: string
+declare const __BUILD_MODE__: string
diff --git a/src/frontend/vite.config.ts b/src/frontend/vite.config.ts
index 1b84f1d..190658f 100644
--- a/src/frontend/vite.config.ts
+++ b/src/frontend/vite.config.ts
@@ -1,28 +1,37 @@
-import { defineConfig } from 'vite'
+import { defineConfig, loadEnv } from 'vite'
 import vue from '@vitejs/plugin-vue'
 import { fileURLToPath, URL } from 'node:url'
 
 // https://vite.dev/config/
-export default defineConfig({
-  plugins: [vue()],
-  resolve: {
-    alias: {
-      '@': fileURLToPath(new URL('./src', import.meta.url))
-    }
-  },
-  server: {
-    port: 5173,
-    proxy: {
-      '/api': {
-        target: 'http://localhost:5000',
-        changeOrigin: true
+export default defineConfig(({ mode }) => {
+  const env = loadEnv(mode, process.cwd(), '')
+
+  return {
+    plugins: [vue()],
+    resolve: {
+      alias: {
+        '@': fileURLToPath(new URL('./src', import.meta.url))
       }
-    }
-  },
-  css: {
-    preprocessorOptions: {
-      scss: {
-        additionalData: `@use "@/styles/variables" as *;`
+    },
+    define: {
+      __BUILD_TIME__: JSON.stringify(new Date().toLocaleString('zh-CN', { timeZone: 'Asia/Shanghai' })),
+      __API_BASE_URL__: JSON.stringify(env.VITE_API_BASE_URL || '/api'),
+      __BUILD_MODE__: JSON.stringify(mode)
+    },
+    server: {
+      port: 5173,
+      proxy: {
+        '/api': {
+          target: 'http://localhost:5000',
+          changeOrigin: true
+        }
+      }
+    },
+    css: {
+      preprocessorOptions: {
+        scss: {
+          additionalData: `@use "@/styles/variables" as *;`
+        }
       }
     }
   }