diff --git a/entry/src/main/ets/entryability/EntryAbility.ets b/entry/src/main/ets/entryability/EntryAbility.ets
index 48493455..55cbdf9d 100644
--- a/entry/src/main/ets/entryability/EntryAbility.ets
+++ b/entry/src/main/ets/entryability/EntryAbility.ets
@@ -1,15 +1,17 @@
 import { AbilityConstant, ConfigurationConstant, UIAbility, Want } from '@kit.AbilityKit';
 import { hilog } from '@kit.PerformanceAnalysisKit';
-import { window, display, AppStorageV2 } from '@kit.ArkUI';
+import { window, display, AppStorageV2, ColorMetrics } from '@kit.ArkUI';
 import { IBestInit } from "@ibestservices/ibest-ui-v2"
 import {ExtractDir,CheckExistDir,HilogSadboxFontDirFile} from "../pages/ExtractDir/ExtractDir"
-import {MainWindowStageInfo,InitGlobalDisplayWindowInfo,mwInfo}from '../pages/DispWinInfo/DispWinInfo'
+import {MainWindowStageInfo,InitGlobalDisplayWindowInfo,mwInfo, mwsInfo}from '../pages/DispWinInfo/DispWinInfo'
 const DOMAIN = 0x0000;
 
 export default class EntryAbility extends UIAbility {
   private mainWindow: window.Window | undefined;
+  private subWindow: window.Window | undefined = undefined;
 
   onCreate(want: Want, launchParam: AbilityConstant.LaunchParam): void {
+    //InitFont->Copy Res/resfile/font to sandbox
     let sbFontsDir=this.context?.filesDir + '/fonts/';
     let sbExampleDir=this.context?.filesDir + '/example/';
     try {
@@ -45,9 +47,16 @@ export default class EntryAbility extends UIAbility {
   }
 
   onWindowStageCreate(windowStage: window.WindowStage): void {
-    //InitFont->Copy Res/resfile/font to sandbox
-
     InitGlobalDisplayWindowInfo(windowStage);
+    //Load page
+    windowStage.loadContent('pages/Index', (err) => {
+      if (err.code) {
+        hilog.error(DOMAIN, 'Tag', 'Failed to load the content. Cause: %{public}s', JSON.stringify(err));
+        return;
+      }
+      IBestInit(windowStage, this.context);
+      hilog.info(DOMAIN, 'testTag', 'Succeeded in loading the content.');
+    });
 
     //Get Main Window
     windowStage.getMainWindow((err, data) => {
@@ -76,15 +85,13 @@ export default class EntryAbility extends UIAbility {
         console.info('Succeeded in enabling the listener for window size changes. Data:' + ChangeData.width,
           ChangeData.height);
       });
-    });
-    //Load page
-    windowStage.loadContent('pages/Index', (err) => {
-      if (err.code) {
-        hilog.error(DOMAIN, 'Tag', 'Failed to load the content. Cause: %{public}s', JSON.stringify(err));
-        return;
-      }
-      IBestInit(windowStage, this.context);
-      hilog.info(DOMAIN, 'testTag', 'Succeeded in loading the content.');
+      let color: string = '#00000000';
+      try {
+        this.mainWindow.setWindowBackgroundColor(color);
+        this.mainWindow.setWindowShadowEnabled(true);
+      } catch (exception) {
+        console.error(`Failed to set the background color. Cause code: ${exception.code}, message: ${exception.message}`);
+      };
     });
   }
 
diff --git a/entry/src/main/ets/pages/EventSubWin/SWBase.ets b/entry/src/main/ets/pages/EventSubWin/SWBase.ets
index 4ac9a262..47fad6d5 100644
--- a/entry/src/main/ets/pages/EventSubWin/SWBase.ets
+++ b/entry/src/main/ets/pages/EventSubWin/SWBase.ets
@@ -34,7 +34,7 @@ export async function CreateAndShowSubWindow(winInfo:WinInfo) {
     await mwsInfo.winStage.createSubWindowWithOptions('subWindow', options).then((data) => {
       subWindow = data;
       //子窗口创建成功后，设置子窗口的位置、大小及相关属性等。
-      subWindow.moveWindowTo(50, 50)
+      subWindow.moveWindowTo(200, 200)
       //子窗口重置大小
       console.info("页面路径:", winInfo.page);
       subWindow.resize(winInfo.width,winInfo.height);
diff --git a/entry/src/main/ets/pages/Index.ets b/entry/src/main/ets/pages/Index.ets
index 39fa1be3..1510bdb3 100644
--- a/entry/src/main/ets/pages/Index.ets
+++ b/entry/src/main/ets/pages/Index.ets
@@ -16,20 +16,19 @@ struct Index {
   @Local isDragging:boolean=false;
   @Provider('LeftSideWidth') leftSideWidth:number=mwInfo.width * 0.1;
   @Provider('RightSideWidth') rightSideWidth:number=mwInfo.width * 0.1;
-  private uiContext: UIContext = this.getUIContext();
-  private overlayManager: OverlayManager = this.uiContext.getOverlayManager();
-  private componentContent: ComponentContent | null = null;
-
+  @Local overlayState:boolean=true;
   build() {
+    Stack({ alignContent: Alignment.Top }) {
     //OpenCAX主界面整体布局,采用多行布局
       Column() {
         //头部导航功能区
-        TitleTab().height('15%')
+        Blank().height(this.overlayState?'15%':'0%')
+        //TitleTab().height('15%')
         //分割线
         Divider().vertical(false).strokeWidth(1).lineCap(LineCapStyle.Round).width('100%').backgroundColor(Color.Grey)
         //工具栏
         Row() {
-          TitleColumnSub()
+          TitleColumnSub({ subOverlayState:this.overlayState!! })
         }.height('4%')
         .align(Alignment.Start)
 
@@ -37,7 +36,7 @@ struct Index {
         Divider().vertical(false).strokeWidth(1).lineCap(LineCapStyle.Round).width('100%').backgroundColor(Color.Grey)
         Row() {
           //左侧边导航区
-          LeftSideTab()
+          LeftSideTab().width(this.overlayState?this.leftSideWidth:'0%')
           // 左拖拽手柄
           Divider().vertical(true).strokeWidth(3).lineCap(LineCapStyle.Round).height('100%').backgroundColor(Color.Grey)
             .onMouse((event) => {
@@ -80,8 +79,8 @@ struct Index {
               }
             })
           //右侧边导航区
-          RightSideTab()
-        }.height('77%')
+          RightSideTab().width(this.overlayState?this.rightSideWidth:'0%')
+        }.height(this.overlayState?'77%':'92%')
         //分割线
         Divider().vertical(false).strokeWidth(1).lineCap(LineCapStyle.Round).width('100%').backgroundColor(Color.Grey)
         ///状态栏
@@ -92,7 +91,15 @@ struct Index {
         .alignItems(HorizontalAlign.Start)
         .justifyContent(FlexAlign.Center)
         .height('4%')
-      }.width('100%')
-       .height('100%')
+      }
+      TitleTab()
+        .height(this.overlayState?'15%':'0%')
+        .backgroundColor(Color.Transparent)
+        .backgroundBlurStyle(BlurStyle.Thin, { colorMode: ThemeColorMode.LIGHT, adaptiveColor: AdaptiveColor.DEFAULT, scale: 1.0 })
+
+    }.width('100%')
+     .height('100%')
+     .backgroundColor(Color.Transparent)
+     .backgroundBlurStyle(BlurStyle.Thin, { colorMode: ThemeColorMode.LIGHT, adaptiveColor: AdaptiveColor.DEFAULT, scale: 1.0 })
   }
 }
diff --git a/entry/src/main/ets/pages/RightSideLayout/RightSideTab.ets b/entry/src/main/ets/pages/RightSideLayout/RightSideTab.ets
index 1c0d7038..807bdd92 100644
--- a/entry/src/main/ets/pages/RightSideLayout/RightSideTab.ets
+++ b/entry/src/main/ets/pages/RightSideLayout/RightSideTab.ets
@@ -14,10 +14,12 @@ export struct RightSideTab {
       Column({space:1}){
         Tabs({ barPosition: BarPosition.Start, controller: this.leftSideBarTabs }) {
           TabContent() {
-
           }
+
         }.barHeight(0)
+        Blank().layoutWeight(1)
       }.width(this.isExpanded?this.rightSideWidth:0)
+
       Column({space:1}){
         Button()
           .backgroundImagePosition({ x: '5%', y: '5%' })
diff --git a/entry/src/main/ets/pages/TitleLayout/TitleColumnSub.ets b/entry/src/main/ets/pages/TitleLayout/TitleColumnSub.ets
index 8b019cf2..5c2c8c8d 100644
--- a/entry/src/main/ets/pages/TitleLayout/TitleColumnSub.ets
+++ b/entry/src/main/ets/pages/TitleLayout/TitleColumnSub.ets
@@ -17,6 +17,8 @@ export struct TitleColumnSub {
   @Local dX:number=0;
   @Local dY:number=0;
   @Local viewDialog:CustomDialogController|undefined=undefined;
+  @Param subOverlayState: boolean = true;
+  @Event $subOverlayState: (val: boolean) => void = (val: boolean) => {};
   //文件操作目录数据初始化
 
   private ViewDialog(): CustomDialogController {
@@ -62,6 +64,10 @@ export struct TitleColumnSub {
         height: '80%' // 图片高度占满按钮
         })
       SubColumnMenu({menus:DisplayMode})
+      Blank().layoutWeight(1)
+      Button('TabsBar显示/隐藏').onClick(()=>{
+         this.$subOverlayState(!this.subOverlayState);
+      })
     }.width('100%')
      .height('100%')
      .backgroundBlurStyle(BlurStyle.Thin,
diff --git a/entry/src/main/module.json5 b/entry/src/main/module.json5
index d384a614..c06fd370 100644
--- a/entry/src/main/module.json5
+++ b/entry/src/main/module.json5
@@ -14,6 +14,9 @@
     "requestPermissions": [
       {
         "name": "ohos.permission.INPUT_MONITORING",
+      },
+      {
+        "name": "ohos.permission.SET_WINDOW_TRANSPARENT",
       }
     ],
     "abilities": [
diff --git a/entry/src/main/resources/base/element/color.json b/entry/src/main/resources/base/element/color.json
index 3c712962..d8806492 100644
--- a/entry/src/main/resources/base/element/color.json
+++ b/entry/src/main/resources/base/element/color.json
@@ -2,7 +2,7 @@
   "color": [
     {
       "name": "start_window_background",
-      "value": "#FFFFFF"
+      "value": "#00000000"
     }
   ]
 }
\ No newline at end of file