fix: index bottom image mode

pages/index/index.wxml

@@ -68,7 +68,9 @@
     <view class="add-btn absolute-btn ittflex" bindtap="handleAddCheck">添加检测人</view>
   </view>
   <view class="index-banner" bindtap="handlActions">
-    <image class="index-img" src="{{homepageImg}}"></image>
+    <view class="inner-img">
+      <image mode="widthFix" src="{{homepageImg}}"></image>
+    </view>
   </view>
   <view class="my-dialog" wx:if="{{qrcodeDialog}}">
     <view class="qr-content">

pages/index/index.wxss

@@ -6,7 +6,6 @@
   background-color: #F7F7F7;
   position: relative;
   padding-top: 1rpx;
-  padding-bottom: 80rpx;
 }
 .header {
   width: 100%;
@@ -234,14 +233,29 @@
   padding: 10px 0;
 }
 .index-banner {
+  width: 100%;
+  height: 770rpx;
+  margin-top: 40rpx;
+  margin-bottom: 20rpx;
+  display: flex;
+  justify-content: center;
+  align-items: flex-start;
+}
+.inner-img {
   width: 690rpx;
-  height: 690rpx;
-  margin: 40rpx auto 0;
+  display: flex;
+  justify-content: center;
+  align-items: flex-start;
 }
 .index-img {
   width: 100%;
   height: 100%;
 }
+.testdom {
+  width: 100%;
+  height: 600rpx;
+  background-color: #999;
+}
 .wrapper {
   height: 100%;
   align-items: flex-start;