diff --git a/src/Core/Animation/PathAnimationManager.cs b/src/Core/Animation/PathAnimationManager.cs
index abd1504..8665814 100644
--- a/src/Core/Animation/PathAnimationManager.cs
+++ b/src/Core/Animation/PathAnimationManager.cs
@@ -133,7 +133,7 @@ namespace NavisworksTransport.Core.Animation
 
         // === 角度修正 ===
         private LocalEulerRotationCorrection _objectRotationCorrection = LocalEulerRotationCorrection.Zero;  // 物体绕宿主 X/Y/Z 轴的角度修正
-        private double _groundPathObjectLiftHeight; // 地面路径物体额外提升高度（模型单位）
+        private double _groundPathObjectLiftHeight; // 地面路径物体上下偏移（模型单位，负值向下）
 
         // === 碰撞排除列表缓存管理（从LogisticsAnimationManager迁移）===
         private ModelItem _currentCachedAnimationObject;
@@ -5428,7 +5428,7 @@ namespace NavisworksTransport.Core.Animation
 
             LogManager.Info(
                 $"[起点摆放] 已应用物体调整请求: 模式={_objectStartPlacementMode}, 角度={_objectRotationCorrection}, " +
-                $"提升高度={request.VerticalLiftInMeters:F3}m");
+                $"上下偏移={request.VerticalLiftInMeters:F3}m");
 
             if (_animatedObject != null && _pathPoints != null && _pathPoints.Count > 0)
             {
@@ -5464,7 +5464,7 @@ namespace NavisworksTransport.Core.Animation
         public void SetObjectStartVerticalLiftDirect(double verticalLiftInMeters)
         {
             _groundPathObjectLiftHeight = UnitsConverter.ConvertFromMeters(verticalLiftInMeters);
-            LogManager.Debug($"[起点摆放] 直接设置地面路径提升高度: {verticalLiftInMeters:F3}m");
+            LogManager.Debug($"[起点摆放] 直接设置地面路径上下偏移: {verticalLiftInMeters:F3}m");
         }
 
         public void SetObjectStartPlacementMode(ObjectStartPlacementMode placementMode)
@@ -5504,7 +5504,7 @@ namespace NavisworksTransport.Core.Animation
             double verticalLiftModelUnits,
             CoordinateSystemType hostType)
         {
-            if (verticalLiftModelUnits <= 0.0)
+            if (Math.Abs(verticalLiftModelUnits) < 1e-9)
             {
                 return Vector3.Zero;
             }
@@ -5515,7 +5515,7 @@ namespace NavisworksTransport.Core.Animation
 
         private Point3D ApplyGroundPathObjectLiftOffset(Point3D trackedCenter)
         {
-            if (_route == null || _route.PathType != PathType.Ground || _groundPathObjectLiftHeight <= 0.0)
+            if (_route == null || _route.PathType != PathType.Ground || Math.Abs(_groundPathObjectLiftHeight) < 1e-9)
             {
                 return trackedCenter;
             }
diff --git a/src/UI/WPF/ViewModels/AnimationControlViewModel.cs b/src/UI/WPF/ViewModels/AnimationControlViewModel.cs
index d5ca03f..bba6223 100644
--- a/src/UI/WPF/ViewModels/AnimationControlViewModel.cs
+++ b/src/UI/WPF/ViewModels/AnimationControlViewModel.cs
@@ -2191,7 +2191,7 @@ namespace NavisworksTransport.UI.WPF.ViewModels
                     ObjectRotationCorrection = placementRequest.RotationCorrection;
 
                     string liftSummary = enableGroundLift
-                        ? $", 提升高度={_objectGroundLiftHeightInMeters:F3}m"
+                        ? $", 上下偏移={_objectGroundLiftHeightInMeters:F3}m"
                         : string.Empty;
                     string statusSummary = placementRequest.PreserveInitialPose
                         ? $"物体已调整为平移模式{liftSummary}"
@@ -2199,7 +2199,7 @@ namespace NavisworksTransport.UI.WPF.ViewModels
 
                     LogManager.Info(
                         $"物体调整已更新: 模式={placementRequest.PlacementMode}, 角度={_objectRotationCorrection}, " +
-                        $"提升高度={_objectGroundLiftHeightInMeters:F3}m");
+                        $"上下偏移={_objectGroundLiftHeightInMeters:F3}m");
                     UpdateMainStatus(statusSummary);
 
                     // 更新通行空间可视化（考虑旋转后的尺寸）
@@ -4736,7 +4736,7 @@ namespace NavisworksTransport.UI.WPF.ViewModels
                         // 地面路径：物体的长度方向（X轴，前进方向）朝向路径方向
                         // 通行空间沿路径方向 = X方向尺寸（长度），垂直于路径方向 = Y方向尺寸（宽度），高度上方加间隙（下方不需要，因为有地面）
                         passageAcrossPath = effectiveWidth + 2 * safetyMargin; // 旋转后宽度 + 2*间隙（垂直于路径方向）
-                        passageNormalToPath = effectiveHeight + (_objectGroundLiftHeightInMeters * metersToUnitsPassage) + safetyMargin; // 物体高度 + 提升高度 + 上方间隙
+                        passageNormalToPath = effectiveHeight + (_objectGroundLiftHeightInMeters * metersToUnitsPassage) + safetyMargin; // 物体高度 + 上下偏移 + 上方间隙
                         passageAlongPath = effectiveLength; // 旋转后长度（沿路径方向）
                         // 地面路径不需要分段参数
                         passageNormalToPathVertical = passageNormalToPath;
@@ -4780,7 +4780,7 @@ namespace NavisworksTransport.UI.WPF.ViewModels
                         // 物体的长度方向（X轴，前进方向）朝向路径方向
                         // 通行空间沿路径方向 = X方向尺寸（长度），垂直于路径方向 = Y方向尺寸（宽度），高度上方加间隙（下方不需要，因为有地面）
                         passageAcrossPath = effectiveWidth + 2 * safetyMargin;   // 旋转后宽度 + 2*间隙（垂直于路径方向）
-                        passageNormalToPath = effectiveHeight + (_objectGroundLiftHeightInMeters * metersToUnitsPassage) + safetyMargin;  // 物体高度 + 提升高度 + 上方间隙
+                        passageNormalToPath = effectiveHeight + (_objectGroundLiftHeightInMeters * metersToUnitsPassage) + safetyMargin;  // 物体高度 + 上下偏移 + 上方间隙
                         passageAlongPath = effectiveLength;  // 旋转后长度（沿路径方向）
                         // 地面路径不需要分段参数
                         passageNormalToPathVertical = passageNormalToPath;
@@ -4824,7 +4824,7 @@ namespace NavisworksTransport.UI.WPF.ViewModels
                     passageAlongPath,
                     passageNormalToPathVertical,
                     passageNormalToPathHorizontal);
-                LogManager.Debug($"[通行空间可视化] 已设置通行空间参数: 沿路径={passageAlongPath / metersToUnitsPassage:F2}m, 垂直路径={passageAcrossPath / metersToUnitsPassage:F2}m, 法线={passageNormalToPath / metersToUnitsPassage:F2}m, 提升高度={_objectGroundLiftHeightInMeters:F2}m, 安全间隙={_safetyMarginInMeters:F2}m");
+                LogManager.Debug($"[通行空间可视化] 已设置通行空间参数: 沿路径={passageAlongPath / metersToUnitsPassage:F2}m, 垂直路径={passageAcrossPath / metersToUnitsPassage:F2}m, 法线={passageNormalToPath / metersToUnitsPassage:F2}m, 上下偏移={_objectGroundLiftHeightInMeters:F2}m, 安全间隙={_safetyMarginInMeters:F2}m");
 
                         // 根据路径类型决定是否切换到物体通行空间模式
                         bool enableObjectSpace = false;
diff --git a/src/UI/WPF/Views/EditRotationWindow.xaml b/src/UI/WPF/Views/EditRotationWindow.xaml
index 77aa36d..4f6ee25 100644
--- a/src/UI/WPF/Views/EditRotationWindow.xaml
+++ b/src/UI/WPF/Views/EditRotationWindow.xaml
@@ -2,7 +2,7 @@
         xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
         xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
         xmlns:converters="clr-namespace:NavisworksTransport.UI.WPF.Converters"
-        Title="调整物体" Height="430" Width="400"
+        Title="调整物体" Height="380" Width="440"
         WindowStartupLocation="CenterScreen"
         ResizeMode="NoResize"
         ShowInTaskbar="False"
@@ -28,7 +28,6 @@
         <Border Grid.Row="0" Background="#FFF8FBFF" BorderBrush="#FFD4E7FF" BorderThickness="0,0,0,1" Padding="20,15">
             <StackPanel>
                 <TextBlock Text="调整物体" FontWeight="SemiBold" FontSize="14" Foreground="#FF2B579A"/>
-                <TextBlock Text="设置物体在路径起点处的角度修正；地面路径可额外输入提升高度" FontSize="10" Foreground="#FF666666" Margin="0,3,0,0"/>
             </StackPanel>
         </Border>
         
@@ -78,7 +77,7 @@
                 </Grid>
 
                 <!-- Z轴 -->
-                <Grid Margin="0,0,0,12">
+                <Grid Margin="0,0,0,8">
                     <Grid.ColumnDefinitions>
                         <ColumnDefinition Width="110"/>
                         <ColumnDefinition Width="*"/>
@@ -98,13 +97,13 @@
                     <TextBlock Grid.Column="2" Text="°" VerticalAlignment="Center" FontSize="11" Foreground="#FF666666" Margin="8,0,0,0"/>
                 </Grid>
 
-                <Grid Margin="0,0,0,12">
+                <Grid Margin="0,0,0,8">
                     <Grid.ColumnDefinitions>
                         <ColumnDefinition Width="110"/>
                         <ColumnDefinition Width="*"/>
                         <ColumnDefinition Width="50"/>
                     </Grid.ColumnDefinitions>
-                    <TextBlock Text="提升高度:" VerticalAlignment="Center" FontSize="11" Foreground="#FF333333"/>
+                    <TextBlock Text="上下偏移:" VerticalAlignment="Center" FontSize="11" Foreground="#FF333333"/>
                     <TextBox Grid.Column="1"
                              x:Name="GroundLiftTextBox"
                              Text="{Binding GroundPathLiftHeightInMeters, Mode=TwoWay, UpdateSourceTrigger=Explicit, Converter={StaticResource EditableNumberConverter}, ConverterParameter=0.###, ValidatesOnExceptions=True, NotifyOnValidationError=True}"
@@ -118,11 +117,6 @@
                     <TextBlock Grid.Column="2" Text="m" VerticalAlignment="Center" FontSize="11" Foreground="#FF666666" Margin="8,0,0,0"/>
                 </Grid>
 
-                <TextBlock Text="{Binding GroundLiftHint}"
-                           FontSize="10"
-                           Foreground="#FF666666"
-                           Margin="0,0,0,12"/>
-                
                 <!-- 快捷按钮 -->
                 <TextBlock Text="快捷角度（作用于当前焦点输入框）:" FontSize="10" Foreground="#FF666666" Margin="0,0,0,8"/>
                 <StackPanel Orientation="Horizontal">
diff --git a/src/UI/WPF/Views/EditRotationWindow.xaml.cs b/src/UI/WPF/Views/EditRotationWindow.xaml.cs
index 26e110a..24ff086 100644
--- a/src/UI/WPF/Views/EditRotationWindow.xaml.cs
+++ b/src/UI/WPF/Views/EditRotationWindow.xaml.cs
@@ -89,8 +89,8 @@ namespace NavisworksTransport.UI.WPF.Views
         public bool IsGroundLiftEnabled => _isGroundLiftEnabled;
 
         public string GroundLiftHint => _isGroundLiftEnabled
-            ? "仅地面路径生效，用于模拟物体下方物流小车带来的整体抬升。"
-            : "提升高度当前仅对地面路径生效。";
+            ? "仅地面路径生效，正值向上偏移，负值向下偏移。"
+            : "上下偏移当前仅对地面路径生效。";
 
         public ObjectStartPlacementRequest AdjustmentRequest => _adjustmentRequest;
 
@@ -273,17 +273,11 @@ namespace NavisworksTransport.UI.WPF.Views
                 return false;
             }
 
-            if (!TryUpdateNumberTextBox(GroundLiftTextBox, "请输入有效的提升高度。"))
+            if (!TryUpdateNumberTextBox(GroundLiftTextBox, "请输入有效的上下偏移值。"))
             {
                 return false;
             }
 
-            if (GroundPathLiftHeightInMeters < 0.0)
-            {
-                ShowInputError("提升高度必须大于或等于 0。", GroundLiftTextBox);
-                return false;
-            }
-
             return true;
         }