.footer {
  width: 100%;
  height: 12rem;
  background-color: #282110;
}

.copyright {
  font-family: 'Noto Sans JP', serif;
  font-weight: 400;
  font-size: 1.6rem;
  line-height: 1.5;
  letter-spacing: 0;
  color: #99A1AF;
  text-align: center;
  padding-top: 4.8rem;
}

@media screen and (max-width: 699.98px) {
  .footer {}

  .copyright {
    width: 20.4rem;
    text-align: center;
    padding-top: 4.8rem;
    padding-bottom: 2.4rem;
    margin-left: auto;
    margin-right: auto;
  }
}