diff --git a/build.js b/build.js
index b4dcf46..b09b785 100644
--- a/build.js
+++ b/build.js
@@ -2,7 +2,6 @@
 /**
  * 将静态资源复制到 dist/，便于直接部署到任意静态主机。
  * 产出: dist/index.html, dist/config.json, dist/lib/, dist/image/
- * 构建时注入 __CACHE_VERSION__ 为时间戳，用于防微信/浏览器强缓存，保证发版后页面可更新。
  */
 const fs = require('fs');
 const path = require('path');
@@ -57,11 +56,7 @@ function main() {
   }
   fs.mkdirSync(DIST, { recursive: true });
 
-  const cacheVersion = String(Date.now());
-  let indexHtml = fs.readFileSync(path.join(ROOT, 'index.html'), 'utf8');
-  indexHtml = indexHtml.replace(/__CACHE_VERSION__/g, cacheVersion);
-  fs.writeFileSync(path.join(DIST, 'index.html'), indexHtml, 'utf8');
-
+  copyFile(path.join(ROOT, 'index.html'), path.join(DIST, 'index.html'));
   copyFile(path.join(ROOT, 'config.json'), path.join(DIST, 'config.json'));
   copyFile(path.join(ROOT, 'api.config.json'), path.join(DIST, 'api.config.json'));
   copyDir(path.join(ROOT, 'lib'), path.join(DIST, 'lib'));
diff --git a/index.html b/index.html
index 8d37113..52373ab 100644
--- a/index.html
+++ b/index.html
@@ -4,12 +4,8 @@
   <meta charset="UTF-8">
   <meta name="viewport" content="width=device-width, initial-scale=1.0, viewport-fit=cover">
   <meta name="apple-mobile-web-app-capable" content="yes">
-  <meta http-equiv="Cache-Control" content="no-cache, no-store, must-revalidate">
-  <meta http-equiv="Pragma" content="no-cache">
-  <meta http-equiv="Expires" content="0">
   <title>全景查看</title>
-  <script>window.__CACHE_VERSION__='__CACHE_VERSION__';</script>
-  <link rel="stylesheet" href="lib/pannellum.css?v=__CACHE_VERSION__">
+  <link rel="stylesheet" href="lib/pannellum.css">
   <style>
     html, body { margin: 0; padding: 0; width: 100%; height: 100%; overflow: hidden; -webkit-tap-highlight-color: transparent; touch-action: manipulation; }
     .pano-root { flex: 1 1 0%; position: relative; width: 100%; height: 100%; }
@@ -211,7 +207,7 @@
     </div>
   </div>
 
-  <script src="lib/pannellum.js?v=__CACHE_VERSION__"></script>
+  <script src="lib/pannellum.js"></script>
   <script>
     (function() {
       var API = '/api';
@@ -483,7 +479,7 @@
         });
       }
 
-      fetch('api.config.json?v=' + (window.__CACHE_VERSION__ || ''))
+      fetch('api.config.json')
         .then(function(r) {
           if (!r.ok) return Promise.resolve({ apiBase: '' });
           return typeof r.json === 'function' ? r.json().catch(function() { return { apiBase: '' }; }) : Promise.resolve({ apiBase: '' });