.guide-side-ad {
  display: none;
}

@media (min-width: 1300px) and (min-height: 640px) {
  .guide-side-ad {
    position: fixed;
    top: max(20px, calc((100vh - 600px) / 2));
    left: calc(50% + 470px);
    width: 160px;
    height: 600px;
    display: block;
    z-index: 20;
    overflow: hidden;
  }
}