footer{ background: black; text-align: center; margin-top:-20px; height: 50px; align-items: center;}
a { color: #1E1B1E;}
a:hover { color: grey; opacity: 50%; filter:  saturate(0);}
.COPYRIGHT{font-size: 12px;margin-top: 18px; color: white; line-height: 50px;}



@media screen and (max-width: 1080px){
  .PC{display: none;}
  .SP{display: block;}
  .COPYRIGHT{margin-top: -25px;}
  footer{ margin: 20px 0;}