fix: 帮助按钮前竖线改为 TextBlock | 风格，去掉中间列右边距

src/UI/WPF/Views/LogisticsControlPanel.xaml

@@ -114,8 +114,7 @@ NavisworksTransport 主控制面板 - 采用与其他视图一致的Navisworks 2
                 <!-- 中间：渲染模式快捷按钮 -->
                 <StackPanel Grid.Column="1" 
                             Orientation="Horizontal"
-                            HorizontalAlignment="Center"
-                            Margin="0,0,20,0">
+                            HorizontalAlignment="Center">
                     <ToggleButton IsChecked="{Binding ShowControlVisualization}"
                                   ToolTip="控制点连线"
                                   Width="28" Height="24"
@@ -193,7 +192,11 @@ NavisworksTransport 主控制面板 - 采用与其他视图一致的Navisworks 2
 
                 <!-- 右侧：原有按钮 -->
                 <StackPanel Grid.Column="2" Orientation="Horizontal">
-                    <Rectangle Width="1" Height="18" Fill="#FFCCCCCC" Margin="4,0,6,0"/>
+                    <TextBlock Text="|" 
+                               VerticalAlignment="Center" 
+                               Margin="4,0,6,0" 
+                               Foreground="#FFCCCCCC"
+                               FontSize="14"/>
                     <Button Content="帮助"
                             Click="HelpButton_Click" 
                             Style="{StaticResource SecondaryButtonStyle}"