.footer {
  margin-bottom: 51px;
  background: #F5F5F5;
}

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

.footer .footer-bottom {
  padding: 15px 0;
  text-align: center;
}

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

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

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

  .footer .item {
    padding: 0 15px;
    min-width: 185px;
  }

  .footer .item:nth-child(2) {
    width: 250px;
  }

  .footer .item:nth-child(3) {
    flex: 0 0 45%;
    max-width: 45%;
    margin-top: 20px;
  }

  .footer .item:nth-child(4) {
    flex: 0 0 55%;
    max-width: 55%;
    margin-top: 20px;
  }

  .footer .tit {
    font-weight: bold;
    margin-bottom: 15px;
  }

  .footer .item:nth-child(-n+2) .tit {
    padding-bottom: 8px;
    border-bottom: 1px solid rgba(51, 51, 51, .2);
  }

  .footer .item-list>li:not(:last-child) {
    margin-bottom: 6px;
  }

  .footer .item-list>li i {
    margin-right: 3px;
  }

  .footer .title-wrap {
    display: flex;
    align-items: center;
    padding-bottom: 9px;
    border-bottom: 1px solid rgba(51, 51, 51, .2);
    margin-bottom: 15px;
  }

  .footer .title-wrap .tit {
    margin-right: 19px;
    margin-bottom: 0;
  }

  .footer .icon-list {
    display: flex;
    align-items: center;
  }

  .footer .icon-list li {
    line-height: 1;
  }

  .footer .icon-list li:not(:last-child) {
    margin-right: 13px;
  }

  .footer .icon-list li a {
    display: inline-block;
  }

  .footer .icon-list li i {
    font-size: 14px;
  }

  .footer .form-group {
    margin-bottom: 17px;
  }

  .footer .form-control {
    border-radius: 0;
    background: #FFFFFF;
  }

  .footer input.form-control {
    height: 33px;
  }

  .footer textarea.form-control {
    min-height: 86px;
  }

  .footer .btn-wrap {
    margin-top: 20px;
  }

  .footer .btn {
    width: 119px;
    color: #fff;
    font-size: 18px;
    text-align: center;
    padding: 2px 15px 1px;
    border-radius: 0;
    background-color: var(--style-color);
  }

  .footer .form-control::-webkit-input-placeholder {
    color: #999;
  }

  .footer .form-control:-moz-placeholder {
    color: #999;
  }

  .footer .form-control::-moz-placeholder {
    color: #999;
  }

  .footer .form-control:-ms-input-placeholder {
    color: #999;
  }

  .footer .logo {
    width: auto;
    height: 40px;
    margin-bottom: 15px;
  }

  .footer .cont-list {
    margin-bottom: 15px;
  }

  .footer .cont-list li {
    line-height: 1.8;
  }

  .footer .cont-list li:not(:last-child) {
    margin-bottom: 6px;
  }

  .footer .cont-list li p {
    flex: 1;
  }

  .footer .cont-list li i {
    position: relative;
    top: 2px;
    line-height: 1;
    font-size: 20px;
    margin-right: 8px;
    display: inline-block;
  }

  .footer .code-img {
    width: auto;
    height: 93px;
  }

  .footer .footer-bottom {
    padding: 24px 0;
    border-top: 1px solid rgba(51, 51, 51, .2);
  }
}

@media (min-width: 992px) {
  .footer .item:nth-child(3) {
    flex: none;
    margin-top: 0;
    width: 300px;
  }

  .footer .item:nth-child(4) {
    flex: 0 0 100%;
    max-width: 100%;
  }
}

@media (min-width: 1200px) {
  .footer .footer-top {
    padding: 53px 0 51px;
  }

  .footer .item:nth-child(4) {
    flex: none;
    margin-top: 0;
    width: 360px;
  }

  .footer .title-wrap {
    margin-bottom: 26px;
  }

  .footer .item ul>li a, .footer .btn, .footer .footer-bottom a {
    transition: all .3s;
  }

  .footer .item-list>li a:hover,
  .footer .icon-list li a:hover {
    color: var(--style-color);
  }

  .footer .btn-wrap {
    margin-top: 26px;
  }

  .footer .btn {
    font-size: 20px;
  }

  .footer .btn:hover {
    color: var(--style-color);
    background-color: #fff;
  }

  .footer .logo {
    margin-bottom: 21px;
  }

  .footer .cont-list {
    margin-bottom: 30px;
  }

  .footer .cont-list>li a:hover,
  .footer .footer-bottom a:hover {
    color: var(--style-color);
    text-decoration: underline;
  }
}

@media (min-width: 1440px) {
  .footer .item:nth-child(-n+2) {
    width: 290px;
  }

  .footer .item:nth-child(3) {
    width: 330px;
  }

  .footer .item:nth-child(4) {
    width: 410px;
  }
}