diff --git a/Ink Canvas/Windows/ScreenshotSelectorWindow.xaml b/Ink Canvas/Windows/ScreenshotSelectorWindow.xaml
index 2d424b75..ef299119 100644
--- a/Ink Canvas/Windows/ScreenshotSelectorWindow.xaml	
+++ b/Ink Canvas/Windows/ScreenshotSelectorWindow.xaml	
@@ -88,14 +88,14 @@
             </Border>
         </Canvas>
 
-        <!-- 顶部工具栏 -->
+        <!-- 底部工具栏 -->
         <Border Background="#1a1a1a" 
                 Opacity="0.95"
                 CornerRadius="8"
                 Padding="12,8"
                 HorizontalAlignment="Center"
-                VerticalAlignment="Top"
-                Margin="0,20,0,0"
+                VerticalAlignment="Bottom"
+                Margin="0,0,0,80"
                 Panel.ZIndex="1000">
             <StackPanel Orientation="Horizontal">
                 <!-- 模式切换按钮 -->
@@ -169,7 +169,7 @@
                 Padding="16,10"
                 HorizontalAlignment="Center"
                 VerticalAlignment="Bottom"
-                Margin="0,0,0,20"
+                Margin="0,0,0,140"
                 Visibility="Collapsed"
                 Panel.ZIndex="1000">
             <TextBlock Text="拖拽控制点调整选择区域，或拖拽边框移动位置"