.footer {
  color: #fff;
  margin-bottom: 51px;
  background: #2A2A2A;
}

.footer .footer-top {
  display: none;
}

.footer .footer-bottom {
  padding: 12px 0 11px;
  text-align: center;
}

@media (min-width: 768px) {
  .footer {
    margin-bottom: 0;
  }

  .footer .footer-top {
    display: block;
    padding: 30px 0 60px;
  }

  .footer .footer-top .container {
    display: flex;
    flex-wrap: wrap;
    padding: 0;
    justify-content: space-between;
  }

  .footer .item {
    padding: 0 15px;
  }

  .footer .item:nth-child(1) {
    order: 1;
    width: calc(100% - 250px);
    margin-top: 20px;
  }

  .footer .item:nth-child(2), .footer .item:nth-child(3), .footer .item:nth-child(4) {
    width: 170px;
  }

  .footer .item:nth-child(5) {
    order: 2;
    width: 230px;
    margin-top: 20px;
  }

  .footer .logo {
    width: auto;
    height: 36px;
    margin-bottom: 25px;
  }

  .footer .cont-list li {
    display: flex;
  }

  .footer .cont-list li:not(:last-child) {
    margin-bottom: 15px;
  }

  .footer .cont-list li i {
    position: relative;
    top: 4px;
    line-height: 1;
    font-size: 20px;
    margin-right: 10px;
  }

  .footer .cont-list li a {
    color: var(--style-color);
  }

  .footer .tit {
    font-family: 'SourceHanSansCN-M';
    margin-bottom: 15px;
    color: rgba(255, 255, 255, .7);
    padding-bottom: 8px;
    border-bottom: 1px solid rgba(255, 255, 255, .3);
  }

  .footer .item-list li:not(:last-child) {
    margin-bottom: 11px;
  }

  .footer .img-wrap {
    display: flex;
    margin-left: -11px;
    margin-right: -11px;
  }

  .footer .img-wrap .img-item {
    flex: 1;
    padding: 0 11px;
    text-align: center;
  }

  .footer .img-wrap img {
    width: 100%;
  }

  .footer .img-tit {
    font-size: 12px;
    margin-top: 12px;
  }

  .footer .footer-bottom {
    padding: 16px 0;
    border-top: 2px solid rgba(255, 255, 255, .3);
  }
}

@media (min-width: 992px) {
  .footer .item:nth-child(1) {
    width: 100%;
  }

  .footer .item:nth-child(5) {
    width: 230px;
    margin-top: 0;
    order: 0;
  }
}

@media (min-width: 1200px) {
  .footer .footer-top {
    padding: 60px 0 90px;
  }

  .footer .item:nth-child(1) {
    width: 365px;
    order: 0;
    margin-top: 0;
  }

  .footer .logo {
    margin-bottom: 51px;
  }

  .footer .cont-list li:not(:last-child) {
    margin-bottom: 24px;
  }

  .footer .cont-list li i {
    margin-right: 22px;
  }

  .footer .tit {
    margin-bottom: 23px;
    padding-bottom: 13px;
    border-width: 2px;
  }

  .footer ul>li a {
    transition: all .3s;
  }

  .footer ul>li a:hover {
    color: var(--style-color);
  }
}

@media (min-width: 1440px) {
  .footer .footer-top {
    padding: 93px 0 148px;
  }

  .footer .item:nth-child(1) {
    width: 400px;
  }

  .footer .item:nth-child(5) {
    width: 252px;
  }
}