banner样式修改

assets/scss/cus-client/cus-client-common.scss

@@ -897,8 +897,7 @@ client-banner-box.client-banner-index {
     height: 730px;
     background-repeat: no-repeat;
     background-position: center;
-    background-size: contain;
-    max-width: 100%;
+    background-size: cover;
     background-color: #fff;
 
     .banner-btn-groups {