diff --git a/web/src/components/layout/workspace-account-menu.tsx b/web/src/components/layout/workspace-account-menu.tsx
index 7fde32795..8e6863f7d 100644
--- a/web/src/components/layout/workspace-account-menu.tsx
+++ b/web/src/components/layout/workspace-account-menu.tsx
@@ -93,9 +93,9 @@ function UserAvatar({ user, className }: { user: LocalUser; className?: string }
 
     useEffect(() => setFailed(false), [avatarUrl]);
 
-    // 结构保持 button > span > svg：占位图标自动复用顶栏图标按钮的 18px/1.8 描边与配色合同。
+    // 结构保持 button > span > svg：占位图标自动复用顶栏图标按钮的 18px/1.8 描边与配色合同；默认不套圆角容器，hover 由按钮背景反馈。
     return (
-        <span className={cn("grid shrink-0 place-items-center overflow-hidden rounded-[var(--r-sm)] bg-foreground/[.06]", className)}>
+        <span className={cn("grid shrink-0 place-items-center overflow-hidden", className)}>
             {avatarUrl && !failed ? (
                 <img src={avatarUrl} alt="" referrerPolicy="no-referrer" className="size-full object-cover" onError={() => setFailed(true)} />
             ) : (