banner更新

style.css

@@ -303,7 +303,7 @@ body #btn-a #mobile-btn:hover {
   background-size: cover;
   background-repeat: no-repeat;
   background-position: center;
-  background-image: url(./img/banner/coverwebp.webp);
+  background-image: url(./img/banner/cover.png);
   position: relative;
   padding-bottom: 3vw;
   overflow: hidden;

style.scss

@@ -248,6 +248,7 @@ body {
     position: relative;
     padding-bottom: 3vw;
     overflow: hidden;
+
     @media screen and(max-width:$moblie) {
         background-image: none;
         // height: 88vh;