浮动框调整

frontend/saas-portal-web/static/css/invitation_mobile_join.css

@@ -14,7 +14,7 @@ select{
 body {
     background-repeat: no-repeat;
     background-position: center;
-    background-position-y: -60px;
+    background-position-y: -100px;
     background-attachment: fixed;
     z-index: -1;
     width: 100%;