@media screen and (max-width: 640px) {
  #footer04 .cont {
    -webkit-flex-wrap: wrap;
    -ms-flex-wrap: wrap;
    flex-wrap: wrap;
    width: 100%;
    justify-content: space-between;
  }
  #footer04 .cont-item {
    display: block;
    width: 48%;
  }
  #footer04 .cont-item:nth-child(n+3) {
    margin-top: 30px;
  }
  #footer04 .nav ul {
    margin: 0;
    font-size: 10px;
  }
  #footer04 .nav ul + .ttl {
    margin-top: 10px;
  }
  #footer04 .nav li {
    font-size: 10px;
  }
  #footer04 .company {
    margin-top: 30px;
  }
  #footer04 .address {
    margin: 10px 0 0;
    font-size: 10px;
  }
}