diff --git a/Ink Canvas/Windows/QuickDrawFloatingButton.cs b/Ink Canvas/Windows/QuickDrawFloatingButton.cs
index 61aebc2f..062306bf 100644
--- a/Ink Canvas/Windows/QuickDrawFloatingButton.cs	
+++ b/Ink Canvas/Windows/QuickDrawFloatingButton.cs	
@@ -25,6 +25,14 @@ namespace Ink_Canvas
             // 设置无焦点状态
             this.Focusable = false;
             this.ShowInTaskbar = false;
+            
+            // 窗口句柄创建后应用无焦点模式
+            this.SourceInitialized += QuickDrawFloatingButton_SourceInitialized;
+        }
+
+        private void QuickDrawFloatingButton_SourceInitialized(object sender, EventArgs e)
+        {
+            ApplyNoFocusMode();
         }
 
 
@@ -33,12 +41,13 @@ namespace Ink_Canvas
             // 设置位置到屏幕右下角稍微靠近中部
             SetPositionToBottomRight();
             
+            // 应用无焦点模式
+            ApplyNoFocusMode();
+            
             // 应用置顶
             ApplyFloatingButtonTopmost();
             
-            // 如果主窗口在无焦点模式下，启动置顶维护
-            if (MainWindow.Settings?.Advanced?.IsNoFocusMode == true && 
-                MainWindow.Settings?.Advanced?.EnableUIAccessTopMost != true)
+            if (MainWindow.Settings?.Advanced?.EnableUIAccessTopMost != true)
             {
                 StartTopmostMaintenance();
             }
@@ -174,6 +183,7 @@ namespace Ink_Canvas
         private static extern uint GetCurrentProcessId();
 
         private const int GWL_EXSTYLE = -20;
+        private const int WS_EX_NOACTIVATE = 0x08000000;
         private const int WS_EX_TOPMOST = 0x00000008;
         private static readonly IntPtr HWND_TOPMOST = new IntPtr(-1);
         private static readonly IntPtr HWND_NOTOPMOST = new IntPtr(-2);
@@ -187,6 +197,26 @@ namespace Ink_Canvas
         private DispatcherTimer topmostMaintenanceTimer;
         private bool isTopmostMaintenanceEnabled;
 
+        /// <summary>
+        /// 应用无焦点模式
+        /// </summary>
+        private void ApplyNoFocusMode()
+        {
+            try
+            {
+                var hwnd = new WindowInteropHelper(this).Handle;
+                if (hwnd == IntPtr.Zero) return;
+                
+                int exStyle = GetWindowLong(hwnd, GWL_EXSTYLE);
+                
+                // 悬浮快抽窗口始终启用无焦点模式
+                SetWindowLong(hwnd, GWL_EXSTYLE, exStyle | WS_EX_NOACTIVATE);
+            }
+            catch (Exception)
+            {
+            }
+        }
+
         /// <summary>
         /// 应用悬浮按钮置顶
         /// </summary>
@@ -263,11 +293,7 @@ namespace Ink_Canvas
                     return;
                 }
 
-                if (MainWindow.Settings?.Advanced?.IsNoFocusMode != true)
-                {
-                    StopTopmostMaintenance();
-                    return;
-                }
+                // 悬浮快抽窗口始终启用无焦点模式，不需要检查主窗口设置
 
                 var hwnd = new WindowInteropHelper(this).Handle;
                 if (hwnd == IntPtr.Zero) return;
@@ -302,6 +328,12 @@ namespace Ink_Canvas
                     {
                         SetWindowLong(hwnd, GWL_EXSTYLE, exStyle | WS_EX_TOPMOST);
                     }
+                    
+                    // 确保无焦点模式样式正确
+                    if ((exStyle & WS_EX_NOACTIVATE) == 0)
+                    {
+                        SetWindowLong(hwnd, GWL_EXSTYLE, exStyle | WS_EX_NOACTIVATE);
+                    }
                 }
             }
             catch (Exception ex)