show mobile layout at 700px instead of 600px, for Systems menu entry

scss/_var.scss

@@ -10,7 +10,7 @@ $darker-color-2: 2%;
 $border-radius-sub-nav: 10px;
 $border-radius-image: 5px;
 
-$mobile-max-width: 600px;
+$mobile-max-width: 700px;
 $small-mobile-max-width: 300px;
 
 $link-hover-animation-time: 0.2s;
\ No newline at end of file