diff --git a/BetterGenshinImpact/View/Controls/CascadeSelector.xaml b/BetterGenshinImpact/View/Controls/CascadeSelector.xaml
index c0b874bb..cd41177c 100644
--- a/BetterGenshinImpact/View/Controls/CascadeSelector.xaml
+++ b/BetterGenshinImpact/View/Controls/CascadeSelector.xaml
@@ -44,7 +44,9 @@
                PlacementTarget="{Binding ElementName=MainToggle}"
                StaysOpen="False"
                AllowsTransparency="True"
-               PopupAnimation="Slide">
+               PopupAnimation="Slide"
+               Opened="MainPopup_Opened"
+               Closed="MainPopup_Closed">
             <Border x:Name="PopupBorder"
                     Background="{DynamicResource ApplicationBackgroundBrush}"
                     BorderBrush="{DynamicResource SurfaceStrokeColorDefaultBrush}"
@@ -55,7 +57,8 @@
                     MinHeight="100"
                     MaxHeight="300"
                     MinWidth="120"
-                    MaxWidth="600">
+                    MaxWidth="600"
+                    PreviewMouseWheel="PopupBorder_PreviewMouseWheel">
                 <Border.Effect>
                     <DropShadowEffect BlurRadius="10" ShadowDepth="2" Direction="270" Color="Black" Opacity="0.2"/>
                 </Border.Effect>
@@ -70,7 +73,8 @@
                               ItemsSource="{Binding FirstLevelOptions, ElementName=Root}"
                               BorderThickness="0"
                               SelectionChanged="FirstLevelListView_SelectionChanged"
-                              ScrollViewer.VerticalScrollBarVisibility="Auto">
+                              ScrollViewer.VerticalScrollBarVisibility="Auto"
+                              ScrollViewer.CanContentScroll="False">
                         <ui:ListView.ItemTemplate>
                             <DataTemplate>
                                 <TextBlock Text="{Binding}" Margin="8,4"/>
@@ -86,7 +90,8 @@
                               ItemsSource="{Binding SecondLevelOptions, ElementName=Root}"
                               BorderThickness="0"
                               SelectionChanged="SecondLevelListView_SelectionChanged"
-                              ScrollViewer.VerticalScrollBarVisibility="Auto">
+                              ScrollViewer.VerticalScrollBarVisibility="Auto"
+                              ScrollViewer.CanContentScroll="False">
                         <ui:ListView.ItemTemplate>
                             <DataTemplate>
                                 <TextBlock Text="{Binding}" Margin="8,4"/>
diff --git a/BetterGenshinImpact/View/Controls/CascadeSelector.xaml.cs b/BetterGenshinImpact/View/Controls/CascadeSelector.xaml.cs
index de66604e..343949f1 100644
--- a/BetterGenshinImpact/View/Controls/CascadeSelector.xaml.cs
+++ b/BetterGenshinImpact/View/Controls/CascadeSelector.xaml.cs
@@ -1,8 +1,10 @@
+using System;
 using System.Collections.Generic;
 using System.Globalization;
 using System.Linq;
 using System.Windows;
 using System.Windows.Controls;
+using System.Windows.Input;
 using System.Windows.Media;
 
 namespace BetterGenshinImpact.View.Controls;
@@ -21,6 +23,7 @@ public partial class CascadeSelector : UserControl
     {
         InitializeComponent();
         Loaded += OnLoaded;
+        Unloaded += OnUnloaded;
     }
 
     private void OnLoaded(object sender, RoutedEventArgs e)
@@ -29,6 +32,14 @@ public partial class CascadeSelector : UserControl
         UpdatePopupWidth();
     }
 
+    /// <summary>
+    /// 控件卸载时清理事件处理器，防止内存泄漏
+    /// </summary>
+    private void OnUnloaded(object sender, RoutedEventArgs e)
+    {
+        RemoveWindowMouseWheelHandler();
+    }
+
     public Dictionary<string, List<string>>? CascadeOptions
     {
         get { return (Dictionary<string, List<string>>?)GetValue(CascadeOptionsProperty); }
@@ -277,4 +288,112 @@ public partial class CascadeSelector : UserControl
             }
         }
     }
+
+    /// <summary>
+    /// Popup 打开时添加全局滚轮事件拦截
+    /// </summary>
+    private void MainPopup_Opened(object sender, EventArgs e)
+    {
+        var window = Window.GetWindow(this);
+        if (window != null)
+        {
+            window.PreviewMouseWheel -= Window_PreviewMouseWheel;
+            window.PreviewMouseWheel += Window_PreviewMouseWheel;
+        }
+    }
+
+    /// <summary>
+    /// Popup 关闭时移除全局滚轮事件拦截
+    /// </summary>
+    private void MainPopup_Closed(object sender, EventArgs e)
+    {
+        RemoveWindowMouseWheelHandler();
+    }
+
+    /// <summary>
+    /// 移除窗口级滚轮事件处理器
+    /// </summary>
+    private void RemoveWindowMouseWheelHandler()
+    {
+        var window = Window.GetWindow(this);
+        if (window != null)
+        {
+            window.PreviewMouseWheel -= Window_PreviewMouseWheel;
+        }
+    }
+
+    /// <summary>
+    /// 全局滚轮事件处理，当 Popup 打开时拦截所有滚轮事件
+    /// </summary>
+    private void Window_PreviewMouseWheel(object sender, MouseWheelEventArgs e)
+    {
+        if (MainPopup.IsOpen)
+        {
+            e.Handled = true;
+            
+            var scrollViewer1 = FindScrollViewer(FirstLevelListView);
+            var scrollViewer2 = FindScrollViewer(SecondLevelListView);
+            
+            if (scrollViewer1 != null && scrollViewer1.IsMouseOver)
+            {
+                scrollViewer1.ScrollToVerticalOffset(scrollViewer1.VerticalOffset - e.Delta / 2.0);
+                return;
+            }
+            
+            if (scrollViewer2 != null && scrollViewer2.IsMouseOver)
+            {
+                scrollViewer2.ScrollToVerticalOffset(scrollViewer2.VerticalOffset - e.Delta / 2.0);
+                return;
+            }
+        }
+    }
+
+    /// <summary>
+    /// 处理 Popup 内的鼠标滚轮事件，防止滚动穿透到外部页面
+    /// </summary>
+    private void PopupBorder_PreviewMouseWheel(object sender, MouseWheelEventArgs e)
+    {
+        e.Handled = true;
+        
+        var scrollViewer1 = FindScrollViewer(FirstLevelListView);
+        var scrollViewer2 = FindScrollViewer(SecondLevelListView);
+        
+        if (scrollViewer1 != null && scrollViewer1.IsMouseOver)
+        {
+            scrollViewer1.ScrollToVerticalOffset(scrollViewer1.VerticalOffset - e.Delta / 2.0);
+            return;
+        }
+        
+        if (scrollViewer2 != null && scrollViewer2.IsMouseOver)
+        {
+            scrollViewer2.ScrollToVerticalOffset(scrollViewer2.VerticalOffset - e.Delta / 2.0);
+            return;
+        }
+    }
+
+    /// <summary>
+    /// 在视觉树中查找 ScrollViewer
+    /// </summary>
+    private ScrollViewer? FindScrollViewer(DependencyObject parent)
+    {
+        if (parent == null) return null;
+        
+        for (int i = 0; i < VisualTreeHelper.GetChildrenCount(parent); i++)
+        {
+            var child = VisualTreeHelper.GetChild(parent, i);
+            
+            if (child is ScrollViewer scrollViewer)
+            {
+                return scrollViewer;
+            }
+            
+            var result = FindScrollViewer(child);
+            if (result != null)
+            {
+                return result;
+            }
+        }
+        
+        return null;
+    }
 }
diff --git a/BetterGenshinImpact/View/Controls/DomainSelector.xaml b/BetterGenshinImpact/View/Controls/DomainSelector.xaml
index a20b284a..28043acf 100644
--- a/BetterGenshinImpact/View/Controls/DomainSelector.xaml
+++ b/BetterGenshinImpact/View/Controls/DomainSelector.xaml
@@ -38,12 +38,16 @@
             </ToggleButton.Template>
         </ToggleButton>
 
-        <Popup IsOpen="{Binding IsChecked, ElementName=MainToggle, Mode=TwoWay}"
+        <Popup x:Name="MainPopup"
+               IsOpen="{Binding IsChecked, ElementName=MainToggle, Mode=TwoWay}"
                PlacementTarget="{Binding ElementName=MainToggle}"
                StaysOpen="False"
                AllowsTransparency="True"
-               PopupAnimation="Slide">
-            <Border Background="{DynamicResource ApplicationBackgroundBrush}"
+               PopupAnimation="Slide"
+               Opened="MainPopup_Opened"
+               Closed="MainPopup_Closed">
+            <Border x:Name="PopupBorder"
+                    Background="{DynamicResource ApplicationBackgroundBrush}"
                     BorderBrush="{DynamicResource SurfaceStrokeColorDefaultBrush}"
                     BorderThickness="1"
                     CornerRadius="8"
@@ -51,7 +55,8 @@
                     Padding="4"
                     MinHeight="200"
                     MaxHeight="400"
-                    Width="350">
+                    Width="350"
+                    PreviewMouseWheel="PopupBorder_PreviewMouseWheel">
                 <Border.Effect>
                     <DropShadowEffect BlurRadius="10" ShadowDepth="2" Direction="270" Color="Black" Opacity="0.2"/>
                 </Border.Effect>
@@ -63,10 +68,12 @@
                     </Grid.ColumnDefinitions>
 
                     <!-- Countries -->
-                    <ui:ListView ItemsSource="{Binding Countries, ElementName=Root}"
+                    <ui:ListView x:Name="CountriesListView"
+                              ItemsSource="{Binding Countries, ElementName=Root}"
                               SelectedItem="{Binding SelectedCountry, ElementName=Root, Mode=TwoWay}"
                               BorderThickness="0"
-                              ScrollViewer.VerticalScrollBarVisibility="Auto">
+                              ScrollViewer.VerticalScrollBarVisibility="Auto"
+                              ScrollViewer.CanContentScroll="False">
                         <ui:ListView.ItemTemplate>
                             <DataTemplate>
                                 <TextBlock Text="{Binding}" Margin="8,4"/>
@@ -78,13 +85,14 @@
                     <Rectangle Grid.Column="1" Width="1" Fill="{DynamicResource SurfaceStrokeColorDefaultBrush}" Margin="2,0"/>
 
                     <!-- Domains -->
-                    <ui:ListView Grid.Column="2"
+                    <ui:ListView Grid.Column="2" x:Name="DomainsListView"
                               ItemsSource="{Binding FilteredDomains, ElementName=Root}"
                               SelectedValue="{Binding SelectedDomain, ElementName=Root, Mode=TwoWay}"
                               SelectedValuePath="Item2.Name"
                               BorderThickness="0"
                               SelectionChanged="DomainListView_SelectionChanged"
-                              ScrollViewer.VerticalScrollBarVisibility="Auto">
+                              ScrollViewer.VerticalScrollBarVisibility="Auto"
+                              ScrollViewer.CanContentScroll="False">
                         <ui:ListView.ItemTemplate>
                             <DataTemplate>
                                 <TextBlock Margin="8,4">
diff --git a/BetterGenshinImpact/View/Controls/DomainSelector.xaml.cs b/BetterGenshinImpact/View/Controls/DomainSelector.xaml.cs
index cbfb54a3..322a6d4a 100644
--- a/BetterGenshinImpact/View/Controls/DomainSelector.xaml.cs
+++ b/BetterGenshinImpact/View/Controls/DomainSelector.xaml.cs
@@ -1,9 +1,12 @@
+using System;
 using BetterGenshinImpact.GameTask.AutoTrackPath.Model;
 using BetterGenshinImpact.GameTask.Common.Element.Assets;
 using System.Collections.Generic;
 using System.Linq;
 using System.Windows;
 using System.Windows.Controls;
+using System.Windows.Input;
+using System.Windows.Media;
 
 namespace BetterGenshinImpact.View.Controls;
 
@@ -13,6 +16,15 @@ public partial class DomainSelector : UserControl
     {
         InitializeComponent();
         Countries = MapLazyAssets.Instance.CountryToDomains.Keys.Reverse().ToList();
+        Unloaded += OnUnloaded;
+    }
+
+    /// <summary>
+    /// 控件卸载时清理事件处理器，防止内存泄漏
+    /// </summary>
+    private void OnUnloaded(object sender, RoutedEventArgs e)
+    {
+        RemoveWindowMouseWheelHandler();
     }
 
     public List<string> Countries
@@ -95,4 +107,112 @@ public partial class DomainSelector : UserControl
             MainToggle.IsChecked = false;
         }
     }
+
+    /// <summary>
+    /// Popup 打开时添加全局滚轮事件拦截
+    /// </summary>
+    private void MainPopup_Opened(object sender, EventArgs e)
+    {
+        var window = Window.GetWindow(this);
+        if (window != null)
+        {
+            window.PreviewMouseWheel -= Window_PreviewMouseWheel;
+            window.PreviewMouseWheel += Window_PreviewMouseWheel;
+        }
+    }
+
+    /// <summary>
+    /// Popup 关闭时移除全局滚轮事件拦截
+    /// </summary>
+    private void MainPopup_Closed(object sender, EventArgs e)
+    {
+        RemoveWindowMouseWheelHandler();
+    }
+
+    /// <summary>
+    /// 移除窗口级滚轮事件处理器
+    /// </summary>
+    private void RemoveWindowMouseWheelHandler()
+    {
+        var window = Window.GetWindow(this);
+        if (window != null)
+        {
+            window.PreviewMouseWheel -= Window_PreviewMouseWheel;
+        }
+    }
+
+    /// <summary>
+    /// 全局滚轮事件处理，当 Popup 打开时拦截所有滚轮事件
+    /// </summary>
+    private void Window_PreviewMouseWheel(object sender, MouseWheelEventArgs e)
+    {
+        if (MainPopup.IsOpen)
+        {
+            e.Handled = true;
+
+            var scrollViewer1 = FindScrollViewer(CountriesListView);
+            var scrollViewer2 = FindScrollViewer(DomainsListView);
+
+            if (scrollViewer1 != null && scrollViewer1.IsMouseOver)
+            {
+                scrollViewer1.ScrollToVerticalOffset(scrollViewer1.VerticalOffset - e.Delta / 2.0);
+                return;
+            }
+
+            if (scrollViewer2 != null && scrollViewer2.IsMouseOver)
+            {
+                scrollViewer2.ScrollToVerticalOffset(scrollViewer2.VerticalOffset - e.Delta / 2.0);
+                return;
+            }
+        }
+    }
+
+    /// <summary>
+    /// 处理 Popup 内的鼠标滚轮事件，防止滚动穿透到外部页面
+    /// </summary>
+    private void PopupBorder_PreviewMouseWheel(object sender, MouseWheelEventArgs e)
+    {
+        e.Handled = true;
+
+        var scrollViewer1 = FindScrollViewer(CountriesListView);
+        var scrollViewer2 = FindScrollViewer(DomainsListView);
+
+        if (scrollViewer1 != null && scrollViewer1.IsMouseOver)
+        {
+            scrollViewer1.ScrollToVerticalOffset(scrollViewer1.VerticalOffset - e.Delta / 2.0);
+            return;
+        }
+
+        if (scrollViewer2 != null && scrollViewer2.IsMouseOver)
+        {
+            scrollViewer2.ScrollToVerticalOffset(scrollViewer2.VerticalOffset - e.Delta / 2.0);
+            return;
+        }
+    }
+
+    /// <summary>
+    /// 在视觉树中查找 ScrollViewer
+    /// </summary>
+    private ScrollViewer? FindScrollViewer(DependencyObject parent)
+    {
+        if (parent == null) return null;
+
+        for (int i = 0; i < VisualTreeHelper.GetChildrenCount(parent); i++)
+        {
+            var child = VisualTreeHelper.GetChild(parent, i);
+
+            if (child is ScrollViewer scrollViewer)
+            {
+                return scrollViewer;
+            }
+
+            var result = FindScrollViewer(child);
+            if (result != null)
+            {
+                return result;
+            }
+        }
+
+        return null;
+    }
 }