diff --git a/editor/App.vue b/editor/App.vue
index 1738579..d9cd484 100644
--- a/editor/App.vue
+++ b/editor/App.vue
@@ -327,7 +327,5 @@ html, body {
 
 .graph-area {
   flex: 1;
-  position: relative;
-  min-height: 0;
 }
 </style>
diff --git a/editor/components/SceneGraph.vue b/editor/components/SceneGraph.vue
index df61bd6..b072c2f 100644
--- a/editor/components/SceneGraph.vue
+++ b/editor/components/SceneGraph.vue
@@ -86,11 +86,8 @@ onMounted(() => {
 
 <style scoped>
 .scene-graph {
-  position: absolute;
-  top: 0;
-  left: 0;
-  right: 0;
-  bottom: 0;
+  width: 100%;
+  height: 100%;
   background: #0d0d1a;
 }
 </style>
diff --git a/editor/index.html b/editor/index.html
index f120f6e..81ebf10 100644
--- a/editor/index.html
+++ b/editor/index.html
@@ -4,6 +4,10 @@
     <meta charset="UTF-8" />
     <meta name="viewport" content="width=device-width, initial-scale=1.0" />
     <title>剧情编辑器 — 交互式电影游戏</title>
+    <style>
+      html, body { width: 100%; height: 100%; margin: 0; overflow: hidden; background: #0a0a16; }
+      #editor-app { width: 100%; height: 100%; }
+    </style>
   </head>
   <body>
     <div id="editor-app"></div>
