diff --git a/services/update_service.py b/services/update_service.py
index 2a197a5..90425ca 100644
--- a/services/update_service.py
+++ b/services/update_service.py
@@ -111,17 +111,17 @@ class UpdateService:
             data = await loop.run_in_executor(None, self._sync_fetch_json, self.version_url)
             self.status["last_check"] = time.time()
             self.status["checked"] = True
+            current = self._current_version()
+            self.status["current_version"] = current
             if not data:
                 return
             remote_fw = data.get("framework", {})
             remote_ver = remote_fw.get("version", "")
             if not remote_ver:
                 return
-            current = self._current_version()
             if _parse_ver(remote_ver) > _parse_ver(current):
                 self.status["update_available"] = True
                 self.status["latest_version"] = remote_ver
-                self.status["current_version"] = current
                 self.status["download_url"] = self.download_url
                 logger.info(f"🔄 新版本可用: {remote_ver} (当前: {current})")
         except Exception as e:
diff --git a/static/web_panel/js/app.js b/static/web_panel/js/app.js
index e0a951f..52adc68 100644
--- a/static/web_panel/js/app.js
+++ b/static/web_panel/js/app.js
@@ -17,14 +17,15 @@ async function checkTopUpdate() {
   var btn = document.getElementById("top-ver-btn");
   try {
     var r = await fetch("./api/updates"), d = await r.json();
-    btn.textContent = d.current_version || d.latest_version || "v?";
+    var ver = d.current_version || d.latest_version || "";
+    btn.textContent = ver ? ver : "v?";
     if (d.update_available) {
-      btn.textContent = "🔄 " + d.latest_version;
+      btn.textContent = "↻ " + d.latest_version + " 可用";
       btn.style.color = "var(--success)";
       btn.title = "新版本可用! " + d.latest_version;
-    } else {
+    } else if (ver) {
       btn.style.color = "";
-      btn.title = "已是最新";
+      btn.title = "已是最新 " + ver;
     }
   } catch(e) {}
 }