diff --git a/Assets/Editor/ChapterGraph/ChapterGraphEditorWindow.cs b/Assets/Editor/ChapterGraph/ChapterGraphEditorWindow.cs
index c265e4f6c..0ae2735be 100644
--- a/Assets/Editor/ChapterGraph/ChapterGraphEditorWindow.cs
+++ b/Assets/Editor/ChapterGraph/ChapterGraphEditorWindow.cs
@@ -148,9 +148,19 @@ namespace AibisDream.SystemEditor
             });
 
             // 右侧 GraphView
+            // 套一层容器：GraphView 与左侧 Inspector 并列放在 Flex Row 中时，
+            // 内置 RectangleSelector 绘制的框选矩形会出现坐标偏移（已知 Unity 问题）。
+            // 将 GraphView 放在独立的 Flex 子容器中可使其局部原点与父容器对齐，规避该偏移。
+            var graphViewWrapper = new VisualElement();
+            graphViewWrapper.style.flexGrow = 1;
+            graphViewWrapper.style.flexDirection = FlexDirection.Column;
+            graphViewWrapper.style.overflow = Overflow.Hidden;
+
             _graphView = new ChapterGraphView();
             _graphView.style.flexGrow = 1;
-            mainContainer.Add(_graphView);
+            graphViewWrapper.Add(_graphView);
+
+            mainContainer.Add(graphViewWrapper);
 
             root.Add(mainContainer);