style(product): 调整移动端产品样式

public/themes/dist_static/static/css/product.css

@@ -959,6 +959,13 @@ body.is-p-subnav .site-header {
     min-height: 48Px!important;
     font-size: 16Px!important;
   }
+  .p-intro__gallery img {
+    width: auto;
+    max-width: 80%;
+    max-height: 80%;
+    height: 100%;
+    object-fit: contain;
+  }
   .p-subnav {
     height: 56Px!important;
   }