@media screen and (max-width: 768px) {
  .header {
    height: 60px;
  }
  .header .logo {
    padding: 0 10px;
  }
  .header .nav {
    justify-content: flex-end;
    margin-right: 1rem;
  }
  .header .nav ul, .header .other {
    display: none;
  }
  .header .nav .btn {
    height: 50px;
    padding: 8px 15px;
    background-color: #e50112;
    display: inline-block;
  }
  .header .nav .btn span {
    -webkit-transition: .3s;
    -moz-transition: .3s;
    -o-transition: .3s;
    transition: .3s;
    display: block;
    background: #fff;
    position: relative;
    width: 25px;
    height: 1px;
    margin: 8px 0px;
  }
  
  .header .m_nav {
    position: fixed;
    top: 0px;
    left: 0px;
    box-shadow: 0 15px 27px 0 rgb(167 165 165 / 38%);
    width: 100%;
    height: 100%;
    background: #fff;
    transition: all .6s cubic-bezier(.77,0,.175,1) 0ms;
    -webkit-transition: all ease .5s;
    z-index: 1000;
    opacity: 1;
    visibility: visible;
    margin-top: 0px;
    overflow-y: auto;
    transform: translateX(100%);
    display: block;
  }
  .header .m_nav.active {
    transform: translateX(0);
  }
  .header .m_nav .top {
    height: 60px;
    padding: 20px;
  }
  .header .m_nav .top .btn {
    display: block;
    width: 30px;
    height: 30px;
    line-height: 30px;
    text-align: center;
    float: right;
    cursor: pointer;
    font-size: 30px;
  }
  .header .m_nav .list ul {
    padding: 0;
  }
  .header .m_nav .list ul li {
    padding: 0 20px;
    border-bottom: 1px solid #f5f5f5;
  }
  .header .m_nav .list ul li a {
    display: inline-block;
    text-decoration: none;
    color: #333;
    font-size: 16px;
    height: 50px;
    line-height: 50px;
    width: 80%;
  }
  .header .m_nav .list ul li i {
    display: inline-block;
    width: 10%;
    height: 50px;
    line-height: 50px;
    text-align: center;
    vertical-align: top;
    font-size: 1.5rem;
    transition: all .5s ease;
  }
  .header .m_nav .list ul li i.active {
    transform: rotateZ(90deg);
  }
  .header .m_nav .list ul li .dropdown {
    display: none;
  }
  .header .m_nav .list ul li .dropdown a {
    padding: 0 40px;
  }

  .up {
    height: 30vh;
  }

  .main {
    padding-top: 60px;
  }

  .productlist-wrap .about > div:nth-child(1) .box {
    /* justify-content: start; */
    background-size: cover;
  }
  .productlist-wrap .about > div:nth-child(1) .box .item {
    padding: 2rem;
  }
  .productlist-wrap .about > div:nth-child(1) .box {
    border-top-left-radius: 0
  }
  .productlist-wrap .about > div:nth-last-child(1) .box {
    border-bottom-right-radius: 0
  }

  .search-wrap .box {
    width: 200px;
  }

  .super .s2>* {
    width: 100% !important;
  }
  .super .s2 .left {
    width: 100%;
  }
  .super .s2 .right {
    width: 100%;
    margin-top: 1rem;
  }
  .about .section2 .time::before {
    display: none;
  }
  .news .visits {
    float: none;
  }

  .main .indexSwiper .swiper-slide .text .name {
    font-size: 1.5rem;
  }
  .main .indexSwiper .swiper-slide .text .t1 {
    font-size: 2rem;
  }
  .main .indexSwiper .swiper-slide .text .t2 {
    font-size: 1rem;
  }
  .main .indexSwiper .banner-switch {
    display: none;
  }
  .main .indexSwiper .swiper-slide .box {
    background-position: center;
    background-size: cover;
    background-repeat: no-repeat;
    transition: all 0.5s;
  }
  .main .indexSwiper .swiper-slide .text::before {
    content: '';
    position: absolute;
    width: 300px;
    height: 400px;
    display: block;
    border: 10px solid rgba(255,255,255,0.5);
    top: 4.5rem;
    margin-top: -200px;
    left: -0.5rem;
    transition-delay: 2s;
    transition-duration: 2s;
    transform: translate3d(-80px,0,0);
    opacity: 0;
  }
  .downlist .text {
    margin-top: 0;
  }
}