.header .logo img {
  max-height: 60px;
  margin-right: 8px;
}

.pc-banner {
  display: block;
}
.mobile-banner {
  display: none;
}

@media only screen and (max-width: 768px) {
  .pc-banner {
    display: none;
  }
  .mobile-banner {
    display: block;
  }
}