html{box-sizing:border-box}
*{margin:0;padding:0}
body{font-family:"Helvetica Neue",Helvetica,Arial,sans-serif;color:#1a1f27;
     background:#f8fafc;display:flex;min-height:100vh}
@media(max-width:820px){
  body{display:block}
  .side-rail{position:static!important;width:100%!important;min-height:0!important}
  .rail-body{margin-left:0!important}
  .lead-line{font-size:26px!important}
}