@media screen and (max-width: 768px) {
  .header .menu-btn {
    float: left;
    display: block;
  }
  .header .menu-btn span {
    display: block;
    width: 40px;
    height: 4px;
    margin: 5px 0;
    background: #18b192;
    -webkit-transition: 400ms;
    -moz-transition: 400ms;
    -ms-transition: 400ms;
    -o-transition: 400ms;
    transition: 400ms;
  }
  .header .menu-btn.curr span {
    -webkit-transition: 400ms;
    -moz-transition: 400ms;
    -ms-transition: 400ms;
    -o-transition: 400ms;
    transition: 400ms;
  }
  .header .menu-btn.curr span:nth-of-type(1) {
    -webkit-transform: rotate(45deg) translateY(12px);
    -moz-transform: rotate(45deg) translateY(12px);
    -ms-transform: rotate(45deg) translateY(12px);
    -o-transform: rotate(45deg) translateY(12px);
    transform: rotate(45deg) translateY(12px);
  }
  .header .menu-btn.curr span:nth-of-type(2) {
    opacity: 0;
  }
  .header .menu-btn.curr span:nth-of-type(3) {
    -webkit-transform: rotate(-45deg) translateY(-13px);
    -moz-transform: rotate(-45deg) translateY(-13px);
    -ms-transform: rotate(-45deg) translateY(-13px);
    -o-transform: rotate(-45deg) translateY(-13px);
    transform: rotate(-45deg) translateY(-13px);
  }
  .head-top {
    height: 50px;
  }
  .head-top .logo {
    max-width: 160px;
  }
  .head-top .date {
    display: none;
  }
  .head-top .head-btn {
    display: none;
  }
  .head-top .right .homebtn {
    flex-shrink: 0;
    min-width: 0;
    padding: 5px;
    width: 30px;
    height: 30px;
    border-radius: 50%;
  }
  .head-top .right .homebtn span {
    display: none;
  }
  .head-nav .search-top {
    display: none;
  }
  .head-nav .right {
    justify-content: space-between;
    width: 100%;
  }
  .nav-box {
    width: 180px;
    position: fixed;
    height: calc(100vh - 100px);
    top: 100px;
    left: 0;
    overflow-x: hidden;
    overflow-y: auto;
    background: rgba(244, 255, 253, 0.9);
    background: #f4fffd;
    -webkit-transform: translate(-100%, 0);
    -moz-transform: translate(-100%, 0);
    -ms-transform: translate(-100%, 0);
    -o-transform: translate(-100%, 0);
    transform: translate(-100%, 0);
    -webkit-transition: all 0.4s ease-out;
    -moz-transition: all 0.4s ease-out;
    -o-transition: all 0.4s ease-out;
    transition: all 0.4s ease-out;
  }
  .nav-box.curr {
    -webkit-transform: translate(0, 0);
    -moz-transform: translate(0, 0);
    -ms-transform: translate(0, 0);
    -o-transform: translate(0, 0);
    transform: translate(0, 0);
  }
  .nav-box .nav {
    display: block;
  }
  .nav-box .nav .nav-li {
    height: auto;
    padding: 0;
    margin-right: 0;
  }
  .nav-box .nav .nav-li > a {
    line-height: 1.5;
    padding: 12px 10px;
    border-bottom: 1px solid #18b192;
    position: relative;
    color: #333;
  }
  .nav-box .nav .nav-li > a.has-arrow:after {
    position: absolute;
    content: '';
    width: 0.5em;
    height: 0.5em;
    border-width: 1px 0 0 1px;
    border-style: solid;
    border-color: #18b192;
    right: 1em;
    -webkit-transform: rotate(135deg) translateY(-50%);
    -ms-transform: rotate(135deg) translateY(-50%);
    -o-transform: rotate(135deg) translateY(-50%);
    transform: rotate(135deg) translateY(-50%);
    -webkit-transform-origin: top;
    -ms-transform-origin: top;
    -o-transform-origin: top;
    transform-origin: top;
    top: 50%;
    -webkit-transition: all 0.3s ease-out;
    -o-transition: all 0.3s ease-out;
    transition: all 0.3s ease-out;
  }
  .nav-box .nav .nav-li > a.curr {
    background-color: #18b192;
    color: #fff;
  }
  .nav-box .nav .nav-li > a.curr.has-arrow:after {
    -webkit-transform: rotate(225deg) translateY(-50%);
    -ms-transform: rotate(225deg) translateY(-50%);
    -o-transform: rotate(225deg) translateY(-50%);
    transform: rotate(225deg) translateY(-50%);
    border-color: #fff;
    margin-top: -4px;
  }
  .banner {
    margin-top: 100px;
    min-height: 0;
  }
  .main-tit {
    font-size: 24px;
  }
  .cate-top {
    display: block;
    margin-top: 60px;
  }
  .cate-top li {
    width: 100%;
    margin-right: 0;
    margin-bottom: 60px;
    padding-top: 70px;
  }
  .products-list li {
    width: calc(100%/2 - 5px);
    margin-right: 10px;
  }
  .products-list li:nth-child(3n) {
    margin-right: 10px;
  }
  .products-list li:nth-child(2n) {
    margin-right: 0;
  }
  .index-exhibitions li {
    width: 100%;
    margin-right: 0;
  }
  .online-pagebox {
    margin-bottom: 50px;
  }
  .online-pagebox .left-search {
    width: 200px;
  }
  .online-pagebox .online-right {
    width: calc(100% - 200px - 4%);
  }
  .online-pagebox .result .left {
    width: 100%;
    margin-bottom: 10px;
  }
  .online-pagebox .letterbox .item-sub {
    display: block;
  }
  .online-pagebox .letterbox .item-sub .letter {
    margin-right: 5px;
  }
  .exh-top {
    margin-top: 20px;
  }
  .popbox {
    padding: 20px;
    padding-top: 60px;
  }
  .popbox .pop-close {
    right: 15px;
    top: 15px;
  }
  .pro-popcon {
    min-height: 0;
  }
  .pro-popcon .left {
    width: 100%;
    margin-right: 0;
  }
  .pro-popcon .right {
    width: 100%;
  }
  .pro-popcon .swiper-slide {
    border-radius: 20px;
  }
  .pro-popcon .pro-swiper {
    height: 300px;
  }
  .pro-popcon .thumbs-swiper .swiper-slide {
    height: 60px;
    border-radius: 10px;
  }
  .showcase {
    display: block;
    margin-top: 20px;
    padding: 14px;
  }
  .showcase .media {
    margin-left: 0;
    width: 100%;
    margin-bottom: 20px;
  }
  .showcase .media video,
  .showcase .media img {
    max-height: 320px;
  }
  .showcase .content-container .title {
    display: block;
  }
  .showcase .content-container .title h1 {
    font-size: 20px;
  }
  .showcase .content-container .title .action {
    margin-top: 10px;
    margin-left: -10px;
    text-align: right;
  }
  .action .fun .icon {
    width: 20px;
    height: 20px;
    line-height: 20px;
    font-size: 12px;
  }
}
@media screen and (max-width: 640px) {
  .footer {
    padding-top: 20px;
  }
  .footer .foot-newsletter {
    display: block;
    position: static;
    transform: translateX(0);
    height: auto;
    padding: 20px;
    border-radius: 30px;
  }
  .footer .foot-newsletter .title {
    width: 100%;
    justify-content: center;
    margin-bottom: 10px;
  }
  .footer .foot-newsletter .title:after {
    display: none;
  }
  .footer .foot-newsletter .newsletter-form {
    display: block;
    background-color: transparent;
    border-radius: 0;
  }
  .footer .foot-newsletter .newsletter-form .row {
    width: 100%;
    display: block;
  }
  .footer .foot-newsletter .newsletter-form .row span {
    display: none;
  }
  .footer .foot-newsletter .newsletter-form input {
    width: 100% !important;
    border-radius: 10px;
    margin: 5px 0;
  }
  .footer .foot-newsletter .newsletter-form .btn {
    display: block;
    margin: 10px auto 0;
  }
  .footer .foot-con {
    display: block;
    padding: 30px 0;
  }
  .footer .foot-con .li {
    margin-bottom: 20px;
  }
  .footer .tit {
    font-size: 16px;
    margin-bottom: 10px;
  }
  .footer .foot-bottom {
    display: block;
  }
  .footer .foot-bottom .foot-share {
    text-align: right;
    margin-top: 10px;
  }
  .online-pagebox .left-search {
    width: 100%;
    margin-right: 0;
    margin-bottom: 20px;
  }
  .online-pagebox .left-search .search-kw {
    padding: 10px;
    margin-bottom: 10px;
    border-radius: 20px;
  }
  .online-pagebox .left-search .search-item {
    margin-bottom: 10px;
  }
  .online-pagebox .left-search .search-item .con {
    display: none;
  }
  .online-pagebox .online-right {
    width: 100%;
  }
  .exh-top {
    padding: 20px;
    display: block;
  }
  .exh-top .logo {
    width: 100%;
    padding-right: 0;
    margin-right: 0;
    border: 0;
    border-bottom: 1px solid #f8f8f9;
    padding-bottom: 20px;
    margin-bottom: 20px;
  }
  .exh-top .txtbox {
    width: 100%;
    padding-right: 0;
  }
  .exh-top .fun-box,
  .exh-top .share-box {
    position: static;
    width: 100%;
    margin-top: 10px;
    text-align: right;
  }
  .search-box .form-input {
    width: 100%;
    margin-bottom: 5px;
  }
  .search-box .form-search {
    width: 100%;
  }
  .banner.fixed-height {
    height: 280px;
  }
}
@media screen and (max-width: 460px) {
  .products-list li {
    width: 100%;
    margin-right: 0 !important;
  }
  .exhibitions-list li {
    display: block;
    padding-top: 60px;
  }
  .exhibitions-list li .logo {
    width: 100%;
    height: 100px;
    margin-right: 0;
    margin-bottom: 10px;
    border-radius: 20px;
  }
  .exhibitions-list li .txtbox {
    width: 100%;
  }
  .exhibitions-list li .txtbox .tit {
    padding-right: 0 !important;
  }
}