@media (max-width: 1100px) {
  footer .content .middle {
    padding-left: 50px;
  }
}
@media (max-width: 950px) {
  footer .content .box {
    width: 50%;
  }
  footer .content .topic {
    font-size: 19px;
  }
  footer .content .box p,
  footer .content .box a {
    font-size: 15px;
  }
  .content .right {
    margin-top: 40px;
  }
}
@media (max-width: 560px) {
  footer {
    position: relative;
  }
  footer .content .box {
    width: 100%;
    margin-top: 30px;
  }
  footer .content .middle {
    padding-left: 0;
  }
}