.page-footer {
  position: relative;
  z-index: 100;
  padding-top: 30px;
  background-color: #000;
}
.footer-inner {
  position: relative;
  width: 990px;
  margin: 0 auto;
}
.footer-inner .sns {
  position: absolute;
  top: 10px;
  right: 0;
  display: flex;
  list-style-type: none;
}
.footer-inner .sns > li {
  margin-right: 10px;
  line-height: 1;
}
.footer-inner .sns > li:last-child {
  margin-right: 0;
}

@media (max-width: 640px) {
  .page-footer {
    padding-top: 20px;
  }
  .footer-inner {
    width: 100%;
  }
  .footer-inner .sns {
    position: static;
    margin-bottom: 15px;
    justify-content: center;
  }
  .footer-inner .sns > li {
    margin-right: 15px;
  }
}
.footer-siteid,
.copyright {
  text-align: center;
}

.footer-siteid {
  line-height: 1;
  margin-bottom: 15px;
}
.footer-siteid img {
  width: 71px;
}

.copyright {
  font-size: 83%;
  padding-bottom: 24px;
  color: #fff;
}

@media (max-width: 640px) {
  .footer-siteid {
    margin-bottom: 8px;
  }
  .footer-siteid img {
    width: 57px;
  }

  .copyright {
    padding-bottom: 12px;
  }
}