diff --git a/Ink Canvas/MainWindow.xaml.cs b/Ink Canvas/MainWindow.xaml.cs
index 9f8e702b..1bd1eb88 100644
--- a/Ink Canvas/MainWindow.xaml.cs	
+++ b/Ink Canvas/MainWindow.xaml.cs	
@@ -66,7 +66,6 @@ namespace Ink_Canvas
         private WindowOverviewModel _windowOverviewModel;
 
         // 设置面板相关状态
-        private bool userChangedNoFocusModeInSettings;
         private bool isTemporarilyDisablingNoFocusMode = false;
 
         // 全屏处理状态标志
@@ -2464,11 +2463,6 @@ namespace Ink_Canvas
                 ApplyAlwaysOnTop();
             }
 
-            // 如果当前在设置面板中，标记用户已修改无焦点模式设置
-            if (BorderSettings.Visibility == Visibility.Visible)
-            {
-                userChangedNoFocusModeInSettings = true;
-            }
         }
 
         private void ToggleSwitchAlwaysOnTop_Toggled(object sender, RoutedEventArgs e)
diff --git a/Ink Canvas/MainWindow_cs/MW_FloatingBarIcons.cs b/Ink Canvas/MainWindow_cs/MW_FloatingBarIcons.cs
index 08d3f55b..5dd22193 100644
--- a/Ink Canvas/MainWindow_cs/MW_FloatingBarIcons.cs	
+++ b/Ink Canvas/MainWindow_cs/MW_FloatingBarIcons.cs	
@@ -2872,7 +2872,6 @@ namespace Ink_Canvas
         }
 
         private bool isOpeningOrHidingSettingsPane;
-        private bool wasNoFocusModeBeforeSettings;
 
         private void BtnSettings_Click(object sender, RoutedEventArgs e)
         {
diff --git a/Ink Canvas/MainWindow_cs/MW_PPT.cs b/Ink Canvas/MainWindow_cs/MW_PPT.cs
index de6b19c0..d6821aef 100644
--- a/Ink Canvas/MainWindow_cs/MW_PPT.cs	
+++ b/Ink Canvas/MainWindow_cs/MW_PPT.cs	
@@ -99,7 +99,6 @@ namespace Ink_Canvas
 
         // 页面切换防抖机制
         private DateTime _lastSlideSwitchTime = DateTime.MinValue;
-        private int _pendingSlideIndex = -1;
         private const int SlideSwitchDebounceMs = 150;
         private bool _isInkClearedByButton = false;
         #endregion
@@ -1226,7 +1225,6 @@ namespace Ink_Canvas
 
                 // 重置页面切换防抖机制
                 _lastSlideSwitchTime = DateTime.MinValue;
-                _pendingSlideIndex = -1;
 
                 LogHelper.WriteLogToFile("PPT状态变量已重置", LogHelper.LogType.Trace);
             }
diff --git a/Ink Canvas/MainWindow_cs/MW_TouchEvents.cs b/Ink Canvas/MainWindow_cs/MW_TouchEvents.cs
index 76e93cb9..29e901ed 100644
--- a/Ink Canvas/MainWindow_cs/MW_TouchEvents.cs	
+++ b/Ink Canvas/MainWindow_cs/MW_TouchEvents.cs	
@@ -24,7 +24,6 @@ namespace Ink_Canvas
         private InkCanvasEditingMode lastInkCanvasEditingMode = InkCanvasEditingMode.Ink;
         private DateTime lastTouchDownTime = DateTime.MinValue;
         private const double MULTI_TOUCH_DELAY_MS = 100;
-        private bool isMultiTouchTimerActive = false;
 
         /// </summary> 
         /// 保存画布上的非笔画元素（如图片、媒体元素等）
@@ -572,12 +571,6 @@ namespace Ink_Canvas
                     inkCanvas.EditingMode = lastInkCanvasEditingMode;
             dec.Remove(e.TouchDevice.Id);
 
-            // 重置多触控点定时器状态
-            if (dec.Count <= 1)
-            {
-                isMultiTouchTimerActive = false;
-            }
-
             if (dec.Count == 0)
             {
                 isSingleFingerDragMode = false;
diff --git a/Ink Canvas/Windows/PPTQuickPanel.xaml.cs b/Ink Canvas/Windows/PPTQuickPanel.xaml.cs
index 3bfcc963..d4d5eedd 100644
--- a/Ink Canvas/Windows/PPTQuickPanel.xaml.cs	
+++ b/Ink Canvas/Windows/PPTQuickPanel.xaml.cs	
@@ -96,7 +96,6 @@ namespace Ink_Canvas.Windows
         private bool _isExpanded = false;
         private bool _isDragging = false;
         private Point _dragStartPoint;
-        private double _panelWidth = 230; // 面板总宽度（30 + 200）
         private double _collapsedOffset = 200; // 折叠时的偏移量（隐藏内容区域）
         private MainWindow _mainWindow;
         
diff --git a/Ink Canvas/Windows/RandWindow.xaml.cs b/Ink Canvas/Windows/RandWindow.xaml.cs
index 894edba0..64c410c3 100644
--- a/Ink Canvas/Windows/RandWindow.xaml.cs	
+++ b/Ink Canvas/Windows/RandWindow.xaml.cs	
@@ -222,7 +222,6 @@ namespace Ink_Canvas
                 {
                     animationPool.Add(num);
                 }
-                int lastDisplayedIndex = -1;
 
                 for (int i = 0; i < RandWaitingTimes; i++)
                 {