diff --git a/reader/uiframe/DocSheet.cpp b/reader/uiframe/DocSheet.cpp
index 0b332534f..c0e7b69b8 100644
--- a/reader/uiframe/DocSheet.cpp
+++ b/reader/uiframe/DocSheet.cpp
@@ -1892,7 +1892,11 @@ void DocSheet::restoreSavedViewState()
     // 恢复滚动位置（守卫期间若因侧栏宽度恢复等再触发 deform，最终恢复推迟到布局稳定后）
     // 标签页回切不弹恢复提示条，显隐由 sigCurSheetChanged 按 needsRestoreTip 同步
     if (m_browser && m_operation.scrollPosition > 0.0f) {
-        beginRestoreGuard(false);
+        if (m_restoreGuardActive) {
+            m_restoreSettleTimer->start(kRestoreSettleMs);
+        } else {
+            beginRestoreGuard(false);
+        }
     }
 }