diff --git a/.env b/.env
new file mode 100644
index 0000000..07e7edc
--- /dev/null
+++ b/.env
@@ -0,0 +1 @@
+VITE_UMAMI_SCRIPT=
\ No newline at end of file
diff --git a/.env.production b/.env.production
new file mode 100644
index 0000000..7d56576
--- /dev/null
+++ b/.env.production
@@ -0,0 +1 @@
+VITE_UMAMI_SCRIPT=<script defer src="https://cloud.umami.is/script.js" data-website-id="ddd3bcb8-a0eb-45a2-b7e9-8cee5abe39af"></script>
\ No newline at end of file
diff --git a/vite.config.ts b/vite.config.ts
index efdfa40..ad1f09d 100644
--- a/vite.config.ts
+++ b/vite.config.ts
@@ -4,16 +4,11 @@ import preact from '@preact/preset-vite';
 declare const process: {
   env: {
     GITHUB_PAGES?: string;
-    NODE_ENV?: string;
   };
 };
 
-// 检查是否是 GitHub Pages 环境
-const isGitHubPages = process.env.GITHUB_PAGES === 'true';
-// 检查是否是生产环境
-const isProduction = process.env.NODE_ENV === 'production';
-
 export default defineConfig({
+  plugins: [ preact() ],
   server: {
     headers: {
       'Cross-Origin-Opener-Policy': 'same-origin',
@@ -31,29 +26,8 @@ export default defineConfig({
     },
   },
   optimizeDeps: {
-    include: ['pikafish'],
+    include: [ 'pikafish' ],
   },
   // 根据环境动态设置 base
-  base: isGitHubPages ? '/xiangqi-analysis/' : '/',
-  // 添加 HTML 替换逻辑
-  define: {
-    'process.env.NODE_ENV': JSON.stringify(process.env.NODE_ENV),
-  },
-  plugins: [
-    preact(),
-    {
-      name: 'html-transform',
-      transformIndexHtml(html) {
-        // 只在生产环境中注入统计脚本
-        if (isProduction) {
-          return html.replace(
-            '%VITE_UMAMI_SCRIPT%',
-            '<script defer src="https://cloud.umami.is/script.js" data-website-id="ddd3bcb8-a0eb-45a2-b7e9-8cee5abe39af"></script>'
-          );
-        }
-        // 在开发环境中移除占位符
-        return html.replace('%VITE_UMAMI_SCRIPT%', '');
-      },
-    },
-  ],
-});
+  base: process.env.GITHUB_PAGES === 'true' ? '/xiangqi-analysis/' : '/',
+});
\ No newline at end of file