diff --git a/ota/h5/index-v6.html b/ota/h5/index-v6.html
index 77be939..3bb67b1 100644
--- a/ota/h5/index-v6.html
+++ b/ota/h5/index-v6.html
@@ -3,44 +3,61 @@
 <style>
 body{font-family:monospace;background:#0f172a;color:#e2e8f0;padding:16px;margin:0}
 h1{font-size:18px;color:#38bdf8}
+.chip{display:inline-block;padding:8px 16px;margin:4px;border-radius:6px;font-size:13px;cursor:pointer;border:1px solid #334155}
+.chip-on{background:#1e40af;color:#fff;border-color:#3b82f6}
+.chip-off{background:#1e293b;color:#94a3b8}
 .btn{display:block;width:100%;padding:14px;margin:8px 0;border:none;border-radius:8px;font-size:16px;cursor:pointer}
 .btn-check{background:#1e40af;color:#fff}
 .btn-download{background:#15803d;color:#fff}
 .log{background:#1e293b;padding:12px;border-radius:8px;margin-top:12px;max-height:300px;overflow-y:auto;font-size:12px;white-space:pre-wrap}
 .info{color:#94a3b8;font-size:12px;margin:4px 0}
-.badge{display:inline-block;background:#15803d;color:#fff;padding:2px 8px;border-radius:4px;font-size:11px;margin-left:8px}
+.badge{display:inline-block;background:#22c55e;color:#000;padding:2px 8px;border-radius:4px;font-size:11px;margin-left:8px}
 </style></head><body>
-<h1>Yuzu GCA <span class="badge">HOT UPDATED</span></h1>
+<h1>Yuzu GCA <span class="badge">v6</span></h1>
 <div class="info">version <span id="ver">0.1.0-dav-android-6</span></div>
+
+<div style="margin:12px 0">
+  <span id="ch-stable" class="chip chip-on" onclick="selectCh('stable')">Stable</span>
+  <span id="ch-beta" class="chip chip-off" onclick="selectCh('beta')">Beta</span>
+  <span id="ch-nightly" class="chip chip-off" onclick="selectCh('nightly')">Nightly</span>
+</div>
+
 <button class="btn btn-check" onclick="checkUpdate()">检查更新</button>
 <button class="btn btn-download" onclick="applyUpdate()" id="btnApply" disabled>下载更新</button>
 <div class="log" id="log"></div>
 <script>
-var dlUrl='',dlVer='';
+var dlUrl='',dlVer='',channel='stable';
+var BASE='https://git.childish-ghost.com/LukeMackin/Yuzu-GCA/raw/branch/main/ota';
+
+function selectCh(ch){
+ channel=ch;
+ document.querySelectorAll('.chip').forEach(c=>c.className='chip chip-off');
+ document.getElementById('ch-'+ch).className='chip chip-on';
+ log('channel → '+ch)
+}
+
 function log(m){document.getElementById('log').innerText+=m+'\n'}
+
 function checkUpdate(){
- log('正在检查...');
- fetch('https://git.childish-ghost.com/LukeMackin/Yuzu-GCA/raw/branch/main/ota/version.txt')
- .then(r=>{if(!r.ok)throw Error('网络错误');return r.text()})
- .then(t=>{t=t.trim();log('远程: '+t);
+ var url=BASE+'/version.txt?t='+Date.now();
+ if(channel!=='stable') url=BASE+'/version-'+channel+'.txt?t='+Date.now();
+ log('checking '+url+' ...');
+ fetch(url,{cache:'no-store'})
+ .then(r=>{if(!r.ok)throw Error('HTTP '+r.status);return r.text()})
+ .then(t=>{t=t.trim();log('remote: '+t);
   var local=document.getElementById('ver').innerText;
-  if(t!==local){dlVer=t;dlUrl='https://git.childish-ghost.com/LukeMackin/Yuzu-GCA/raw/branch/main/ota/h5/index-v6.html';
-   log('🆕 有新版本!');document.getElementById('btnApply').disabled=false}
-  else log('✅ 已是最新')})
- .catch(e=>log('❌ 失败: '+e.message))
+  if(t!==local&&t!=='v'+local&&'v'+t!==local){dlVer=t;dlUrl=BASE+'/h5/index-v7.html';
+   log('*** NEW VERSION ***');document.getElementById('btnApply').disabled=false}
+  else log('up to date')})
+ .catch(e=>log('ERR: '+e.message))
 }
+
 function applyUpdate(){
- log('下载中...');
- fetch(dlUrl).then(r=>{if(!r.ok)throw Error('下载失败 '+r.status);return r.text()})
+ log('downloading...');
+ fetch(dlUrl+'?t='+Date.now(),{cache:'no-store'})
+ .then(r=>{if(!r.ok)throw Error('HTTP '+r.status);return r.text()})
  .then(t=>{localStorage.setItem('gca_html',t);localStorage.setItem('gca_ver',dlVer);
-  log('✅ 下载完成，正在刷新...');setTimeout(function(){location.reload()},500)})
- .catch(e=>log('❌ 失败: '+e.message))
-}
-window.onload=function(){
- var b=localStorage.getItem('gca_html'),v=localStorage.getItem('gca_ver');
- if(b&&v){
-  document.getElementById('ver').innerText=v;
-  document.write(b);document.close()
- }
+  log('OK reloading...');setTimeout(function(){location.reload()},300)})
+ .catch(e=>log('ERR: '+e.message))
 }
 </script></body></html>
