.three-subpage-banner {
  width: min(1080px, calc(100% - 40px));
  margin: 28px auto 38px;
  overflow: hidden;
  background: transparent;
}

.three-subpage-banner a {
  display: block;
  width: 100%;
  text-decoration: none;
}

.three-subpage-banner img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: contain;
  object-position: center;
  border: 0;
  border-radius: 0;
  box-shadow: none;
}

@media (max-width: 900px) {
  .three-subpage-banner {
    width: calc(100% - 28px);
    margin: 22px auto 30px;
  }
}

@media (max-width: 600px) {
  .three-subpage-banner {
    width: calc(100% - 18px);
    margin: 16px auto 24px;
  }
}