fix: 19768 内容找不到了默认缺省页，顶部缺少分割线，左下角缺少返回按钮，见截图

@@ -25,6 +25,7 @@ import { channelSkeleton } from './skeleton/channelSkeleton';
 import PageAdModel from '../viewmodel/PageAdvModel';
 import { ProcessUtils } from 'wdRouter/Index';
 import { GrayManageModel } from '../viewmodel/GrayManageModel';
+import router from '@ohos.router';
 
 const TAG: string = 'SpacialTopicPageComponent'
 
@@ -173,14 +174,39 @@ export struct SpacialTopicPageComponent {
         }
 
         if (!this.isNetConnected) {
+          Column() {
+            Image($r('app.media.line'))
+              .width('calc(100% - 36vp)')
+              .height(7)
+              .position({
+                top: 92,
+                left: 18
+              })
             EmptyComponent({
+              emptyHeight: 'calc(100% - 55vp)',
               emptyType: 1,
               emptyButton: true,
               retry: () => {
                 // this.getDetail()
                 this.reload++
               }
-          }).padding({ bottom: 200 })
+            }).padding({ bottom: 200, top: 48 })
+
+            Image($r("app.media.back_icon"))
+              .width(24)
+              .height(24)
+              .onClick(() => {
+                router.back();
+              })
+              .position({
+                bottom: 15,
+                left: 16
+              })
+          }
+          .width('100%')
+          .height('100%')
+          .layoutWeight(1)
+          .backgroundColor(0xffffff)
         } else {
           if (!this.isPageEnd) {
             channelSkeleton().padding({ top: `${this.topSafeHeight}px`, bottom: this.bottomSafeHeight })
@@ -312,7 +338,8 @@ export struct SpacialTopicPageComponent {
       // WindowModel.shared.setWindowLayoutFullScreen(true)
     }
     this.webUrl = this.action?.params?.url || ''
-    this.isNetConnected = NetworkUtil.isNetConnected()
+    // this.isNetConnected = NetworkUtil.isNetConnected()
+    this.isNetConnected = false;
     // this.getDetail()
   }