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

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

.footer .footer-bottom {
  padding: 13px 0 12px;
  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: 180px;
  }

  .footer .item:nth-child(1) {
    order: 4;
    flex: 0 0 100%;
    max-width: 100%;
    margin-top: 20px;
  }

  .footer .item:nth-child(2), .footer .item:nth-child(3) {
    width: 200px;
  }

  .footer .item:nth-child(4) {
    width: 280px;
  }

  .footer .tit {
    font-weight: bold;
  }

  .footer .item:nth-child(2) .tit, .footer .item:nth-child(3) .tit, .footer .title-wrap {
    padding-bottom: 9px;
    margin-bottom: 15px;
    border-bottom: 1px solid rgba(51, 51, 51, .2);
  }

  .footer .logo {
    width: auto;
    height: 55px;
    margin-bottom: 15px;
  }

  .footer .cont-list li {
    line-height: calc(30 / 16);
  }

  .footer .cont-list li:not(:last-child) {
    margin-bottom: 10px;
  }

  .footer .cont-list li i {
    position: relative;
    top: 2px;
    font-size: 20px;
    line-height: 1;
    margin-right: 5px;
  }

  .footer .cont-list li span {
    display: inline-block;
    font-weight: bold;
    margin-right: 3px;
  }

  .footer .item-list>li:not(:last-child) {
    margin-bottom: 8px;
  }

  .footer .item-list>li a {
    letter-spacing: -0.01em;
  }

  .footer .item-list>li i {
    font-size: 14px;
    position: relative;
    left: -5px;
  }

  .footer .title-wrap {
    display: flex;
    align-items: center;
  }

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

  .footer .icon-list li {
    margin-left: 16px;
  }

  .footer .icon-list li i {
    color: #333;
    font-size: 14px;
  }

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

  .footer .form-control {
    font-size: 14px;
    border-radius: 4px;
    border-color: #CECECE;
    box-shadow: none;
  }

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

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

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

  .footer .btn {
    width: 119px;
    color: #fff;
    line-height: 1;
    font-size: 18px;
    border-radius: 4px;
    padding: 7px 15px 6px;
    background: 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 .footer-bottom {
    padding: 15px 0;
    border-top: 1px solid rgba(51, 51, 51, .3);
  }
}

@media (min-width: 992px) {
  .footer .item:nth-child(2), .footer .item:nth-child(3) {
    width: 230px;
  }

  .footer .item:nth-child(4) {
    width: 300px;
  }
}

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

  .footer .item:nth-child(1) {
    order: 0;
    flex: none;
    width: 380px;
    margin-top: 0;
  }

  .footer .item:nth-child(2), .footer .item:nth-child(3) {
    width: 220px;
  }

  .footer .logo {
    height: 70px;
    margin-bottom: 35px;
  }

  .footer .item ul>li a {
    display: inline-block;
    transition: all .3s;
  }

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

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

  .footer .item-list li:hover a {
    transform: translateX(5px);
  }

  .footer .icon-list li:hover a {
    transform: translateY(-2px);
  }

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

  .footer .btn {
    font-size: 20px;
    transition: all .3s;
  }

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

  .footer .footer-bottom {
    padding-top: 20px;
    padding-bottom: 19px;
    border-width: 2px;
  }
}

@media (min-width: 1440px) {
  .footer .footer-top {
    padding-top: 84px;
    padding-bottom: 112px;
  }

  .footer .item:nth-child(1) {
    width: 390px;
  }

  .footer .item:nth-child(2), .footer .item:nth-child(3) {
    width: 230px;
  }

  .footer .item:nth-child(4) {
    width: 326px;
  }
}


/* 手机端底部 */
.mobile-footer {
  width: 100%;
  color: #666;
  text-align: center;
  border-top: 1px solid #ccc;
  position: fixed;
  bottom: 0;
  left: 0;
  z-index: 99;
}

.mobile-footer ul {
  background: #fff;
  padding: 0 15px;
  flex-wrap: nowrap;
  justify-content: space-around;
  display: flex;
}

.mobile-footer li a i {
  width: 20px;
  height: 20px;
  margin: 5px auto 1px;
  line-height: 1;
  display: flex;
  align-items: center;
  justify-content: center;
}

@media (min-width: 768px) {
  .mobile-footer {
    display: none;
  }
}