.p-hero-pic {
  background-image: url('/asset/img/ir/sp_hero.jpg');
}
.p-hero-pic.ir-plan {
  background-image: url('/asset/img/ir/sp_hero_plan.jpg');
}
@media print, screen and (min-width: 768px) {
  .p-hero-pic {
    background-image: url('/asset/img/ir/hero.jpg');
  }
  .p-hero-pic.ir-plan {
    background-image: url('/asset/img/ir/hero_plan.jpg');
  }
}