diff --git a/Spine/Interfaces/SpineExtension.cs b/Spine/SpineExtension.cs
similarity index 97%
rename from Spine/Interfaces/SpineExtension.cs
rename to Spine/SpineExtension.cs
index 218c8fc..efecba4 100644
--- a/Spine/Interfaces/SpineExtension.cs
+++ b/Spine/SpineExtension.cs
@@ -1,4 +1,5 @@
 using NLog;
+using Spine.Interfaces;
 using Spine.Interfaces.Attachments;
 using System;
 using System.Collections.Generic;
@@ -6,7 +7,7 @@ using System.Linq;
 using System.Text;
 using System.Threading.Tasks;
 
-namespace Spine.Interfaces
+namespace Spine
 {
     /// <summary>
     /// 命中测试等级枚举值
@@ -136,7 +137,7 @@ namespace Spine.Interfaces
             if (HitTestLevel == HitTestLevel.None || HitTestLevel == HitTestLevel.Bounds)
             {
                 self.GetBounds(out var bx, out var by, out var bw, out var bh);
-                return x >= bx && x <= (bx + bw) && y >= by && y <= (by + bh);
+                return x >= bx && x <= bx + bw && y >= by && y <= by + bh;
             }
             else if (HitTestLevel == HitTestLevel.Meshes || HitTestLevel == HitTestLevel.Pixels)
             {
@@ -179,7 +180,7 @@ namespace Spine.Interfaces
                     float c2 = Cross(x2, y2, x0, y0);
 
                     // 判断是否全部同号 (或为 0, 点在边上)
-                    if ((c0 >= 0 && c1 >= 0 && c2 >= 0) || (c0 <= 0 && c1 <= 0 && c2 <= 0))
+                    if (c0 >= 0 && c1 >= 0 && c2 >= 0 || c0 <= 0 && c1 <= 0 && c2 <= 0)
                     {
                         if (HitTestLevel == HitTestLevel.Meshes)
                             return true;
@@ -229,7 +230,7 @@ namespace Spine.Interfaces
             if (HitTestLevel == HitTestLevel.None)
             {
                 self.GetBounds(out var bx, out var by, out var bw, out var bh);
-                return x >= bx && x <= (bx + bw) && y >= by && y <= (by + bh);
+                return x >= bx && x <= bx + bw && y >= by && y <= by + bh;
             }
 
             bool hit = false;
diff --git a/SpineViewer/Extensions/SpineObjectExtension.cs b/SpineViewer/Extensions/SpineObjectExtension.cs
index ca24299..9d8d703 100644
--- a/SpineViewer/Extensions/SpineObjectExtension.cs
+++ b/SpineViewer/Extensions/SpineObjectExtension.cs
@@ -1,5 +1,4 @@
 using Spine;
-using Spine.Interfaces;
 using System;
 using System.Collections.Generic;
 using System.Linq;
diff --git a/SpineViewer/Models/PreferenceModel.cs b/SpineViewer/Models/PreferenceModel.cs
index a4336b2..2ae88ec 100644
--- a/SpineViewer/Models/PreferenceModel.cs
+++ b/SpineViewer/Models/PreferenceModel.cs
@@ -1,6 +1,6 @@
 using CommunityToolkit.Mvvm.ComponentModel;
 using CommunityToolkit.Mvvm.Input;
-using Spine.Interfaces;
+using Spine;
 using SpineViewer.Services;
 using System;
 using System.Collections.Generic;
diff --git a/SpineViewer/ViewModels/MainWindow/ExplorerListViewModel.cs b/SpineViewer/ViewModels/MainWindow/ExplorerListViewModel.cs
index a4860de..0f85b90 100644
--- a/SpineViewer/ViewModels/MainWindow/ExplorerListViewModel.cs
+++ b/SpineViewer/ViewModels/MainWindow/ExplorerListViewModel.cs
@@ -20,7 +20,6 @@ using System.Windows;
 using System.Windows.Media;
 using System.Windows.Media.Imaging;
 using System.Windows.Shell;
-using Spine.Interfaces;
 
 namespace SpineViewer.ViewModels.MainWindow
 {
diff --git a/SpineViewer/ViewModels/MainWindow/PreferenceViewModel.cs b/SpineViewer/ViewModels/MainWindow/PreferenceViewModel.cs
index fa461c4..b2f5530 100644
--- a/SpineViewer/ViewModels/MainWindow/PreferenceViewModel.cs
+++ b/SpineViewer/ViewModels/MainWindow/PreferenceViewModel.cs
@@ -2,8 +2,8 @@
 using CommunityToolkit.Mvvm.Input;
 using Microsoft.Win32;
 using NLog;
+using Spine;
 using Spine.Implementations;
-using Spine.Interfaces;
 using SpineViewer.Models;
 using SpineViewer.Natives;
 using SpineViewer.Services;
diff --git a/SpineViewerCLI/SpineViewerCLI.cs b/SpineViewerCLI/SpineViewerCLI.cs
index 6397632..2c91c5e 100644
--- a/SpineViewerCLI/SpineViewerCLI.cs
+++ b/SpineViewerCLI/SpineViewerCLI.cs
@@ -4,7 +4,6 @@ using SFML.Graphics;
 using SFML.System;
 using Spine;
 using Spine.Exporters;
-using Spine.Interfaces;
 
 namespace SpineViewerCLI
 {