@media (max-width: 1248px) {

    .part1 .under .in img {
        width: 20px;
        height: 20px;
        top: 25px;
    }

    .part1 .swiper-wrapper {
        width: 100%;
        margin: 0 auto;
    }

    .part1 .under .in h2 {
        margin-top: 15px;
        font-size: 15px;
        color: #ffffff;
        margin-left: 10%;
        overflow: hidden;
        text-overflow: ellipsis;
        white-space: nowrap;
        width: 70%;
    }

    .part1 .under .in {
        width: 93%;
        height: 130px;
        background: #223555;
        border-radius: 10px;
        display: inline-block;
        position: relative;
        overflow: hidden;
        margin-bottom: 20px;
    }

    .part1 .under .in h3 {
        margin-top: 15px;
        margin-left: 10%;
    }

    .swiper-button-prev,
    .swiper-container-rtl .swiper-button-next {
        top: auto !important;
        right: auto !important;
        bottom: 60px !important;
        z-index: 1000 !important;
    }

    .swiper-button-next,
    .swiper-button-prev {
        top: auto !important;
        right: auto !important;
        bottom: 60px !important;
        z-index: 1000 !important;
    }


    .part4 {
        background: linear-gradient(#f4f4f4, #fff);
    }

    .part4 .bg2 {
        display: none;
    }

    header {
        display: none;
    }

    .wap_nav {
        display: block;
    }

    .menu {
        background: #fff;
        width: 80%;
        display: none;
        position: fixed;
        top: 0;
        right: 0;
        z-index: 100000000;
    }

    .menu_logo {
        width: 180px;
        height: auto;
        float: left;
        margin-top: 22px;
        object-fit: contain;
        margin-left: 20px;
    }

    .menu_logo img {
        width: 180px;
        height: auto;
    }



    .menu2 {
        width: 100%;
        height: calc(100vh - 70px);
        margin-top: 70px;
        display: block;
        padding: 10px;
        overflow-y: auto;
        max-height: 100vh;
    }

    .menu2 li::marker {
        content: none!important;
        display: none;
    }

    .menu2>li>.in {
        height: 8.5vh;
        line-height: 8.5vh;
        display: block;
        position: relative;
        font-family: "Helvetica Neue", Helvetica, Arial, sans-serif;
        font-size: 18px;
        color: #ffffff;
        text-align: right;
        width: 94%;
        margin: 0 auto;
        border-bottom: 1px solid #ffffff;
        border-bottom: 1px solid #ddd;
    }

    .menu2>li>.in a {
        color: #1e1e1e;
    }

    .menu2 ul li a {
        height: 60px;
        line-height: 60px;
        display: block;
        position: relative;
        font-family: "Helvetica Neue", Helvetica, Arial, sans-serif;
        font-size: 19px;
        color: #b0b0b0;
        text-align: right;
        width: 100%;
        margin: 0 auto;
    }

    .menu2 ul li:last-child a {
        border-bottom: 1px solid #ddd;
    }


    .menu2>li>.in span {
        position: absolute;
        left: 0.1rem;
        color: #1e1e1e;
    }


    .menu2>li>ul li a:before {
        content: '<';
        font-size: 8px;
        color: #bcbcbf;
        position: absolute;
        width: 1em;
        height: 1em;
        top: 0;
        left: .1rem;
    }

    .menu2>li>ul li:hover a,
    .menu2>li>ul li:hover a span,
    .menu2>li>ul li:hover a:before {
        color: #32373D;
    }


    .menu2 ul>li>a span {
        font-size: 0.857em;
        display: inline-block;
        position: absolute;
        right: 1em;
        top: 50%;
        background: #fff;
        border: 1px solid #d0d0d3;
        line-height: 1em;
        height: 1em;
        padding: .4em .7em;
        margin: -.9em 0 0 0;
        color: #111111;
        text-indent: 0;
        text-align: center;
        -webkit-border-radius: .769em;
        -moz-border-radius: 769em;
        border-radius: 769em;
        text-shadow: 0px 0px 0px rgba(255, 255, 255, .01);
    }

    /*additional*/

    .menu2>li>ul {
        height: 0;
        overflow: hidden;
    }

    /* .menu2>li>.r:checked ~ .submenu {
      height: auto;
      border-bottom: 1px solid #51555a;
  } */



    .head {
        position: fixed;
        z-index: 1000000;
        background: #fff;
        width: 100%;
        height: 90px;
        box-shadow: .01rem .01rem .05rem #999;
        top: 0;
    }

    .head .w558 {
        position: relative;
        width: 90%;
        margin: 0 auto;
    }

    .head .left {
        width: 180px;
        height: auto;
        float: left;
        margin-top: 22px;
        object-fit: contain;
    }

    .head .lan {
        float: right;
        margin-top: .3rem;
        width: 1.17rem;
        height: .33rem;
        background: url(../images/lan_bg.png) no-repeat;
        background-size: 100% 100%;
        margin-right: .38rem;
    }

    .head .lan a {
        color: #262626;
        font-size: .18rem;
        padding-right: .1rem;
        line-height: .33rem;
        text-align: right;
        display: block;
    }

    .head .right {
        float: right;
        width: 36px;
        height: 26px;
        margin-top: 30px;
    }

    .head .right img {
        width: 36px;
        height: 26px;
    }

    #close {
        margin-top: 30px;
        position: absolute;
        right: 20px;
        width: 15px;
        height: 15px;
    }

    #close img {
        width: 15px;
        height: 15px;
    }


    .mask {
        width: 100%;
        height: 100%;
        background: #000;
        position: fixed;
        left:0;
        top:0;
        opacity: 0.5;
        display: none;
        pointer-events: none;
        z-index: 100000;
    }

    /*导航栏*/
    .nav_menu3,
    .nav_menu3 ul,
    .nav_menu3 ul li,
    .nav_menu3 ul li a,
    .nav_menu3 #menu-button {
        margin: 0;
        padding: 0;
        border: 0;
        list-style: none;
        line-height: 1;
        display: block;
        position: relative;
        -webkit-box-sizing: border-box;
        -moz-box-sizing: border-box;
        box-sizing: border-box;
    }

    .nav_menu3:after,
    .nav_menu3>ul:after {
        content: ".";
        display: block;
        clear: both;
        visibility: hidden;
        line-height: 0;
        height: 0;
    }

    .nav_menu3 #menu-button {
        display: none;
    }

    .nav_menu3>ul>li {
        float: left;
    }

    .nav_menu3.align-center>ul {
        font-size: 0;
        text-align: center;
    }

    .nav_menu3.align-center>ul>li {
        display: inline-block;
        float: none;
    }

    .nav_menu3.align-center ul ul {
        text-align: left;
    }

    .nav_menu3.align-right>ul>li {
        float: right;
    }

    .nav_menu3.align-right ul ul {
        text-align: right;
    }

    .nav_menu3>ul>li>a {
        height: 87px;
        line-height: 87px;
        text-align: center;
        text-decoration: none;
        text-transform: uppercase;
        color: #eee;
        -webkit-transition: color .2s ease;
        -moz-transition: color .2s ease;
        -ms-transition: color .2s ease;
        -o-transition: color .2s ease;
        transition: color .2s ease;
    }

    .nav_menu3>ul>li.nav-has-sub>a {
        width: 171px;
        font-size: 18px;
        padding-right: 25px;
        color: #888888;
        font-weight: bold;
    }


    .nav_menu3 ul ul {
        position: absolute;
        left: -9999px;
        top: 13px;
        right: 30%;
        width: 100px;
        background: #fff;
        border-bottom-left-radius: 10px;
        border-bottom-right-radius: 10px;
        padding-top: 30px;
    }

    .nav_menu3>ul>li>ul {
        border-top: 1px solid #FFF;
        box-shadow: 1px 10px 10px #a4a4a4;
        border-radius: 10px;
        display: block;
    }

    .nav_menu3 li:hover>ul {
        left: auto;
    }

    .nav_menu3.align-right li:hover>ul {
        right: 0;
    }

    .nav_menu3 ul ul ul {
        margin-left: 100%;
        top: 0;
    }

    .nav_menu3>ul>li:hover>a {
        background: #FFF;
    }

    .nav_menu3.align-right ul ul ul {
        margin-left: 0;
        margin-right: 100%;
    }

    .nav_menu3 ul ul li {
        width: 100px !important;
    }


    .nav_menu3 ul ul li a {
        padding: 15px 20px;
        -webkit-transition: color .2s ease;
        -moz-transition: color .2s ease;
        -ms-transition: color .2s ease;
        -o-transition: color .2s ease;
        transition: color .2s ease;
        color: #000;
        font-size: 15px;
        line-height: 30px;
        position: relative;
        display: block;
    }

    .nav_menu3 ul ul li a::after {
        content: '';
        position: absolute;
        bottom: 0;
        width: 65%;
        height: 1px;
        background: #d4d4d4;
        left: 50%;
        transform: translate(-50%);
    }

    .nav_menu3 ul ul li:last-child a::after {
        display: none;
    }

    .nav_menu3 ul ul li:hover>a,
    .nav_menu3 ul ul li a:hover {
        color: #0176bd;
    }

    .nav-has-sub img {
        margin-top: 10px;
    }

    .nav_menu3 ul li a:hover .sub-a {
        display: block;
    }

    .navbtn {
        float: right;
        margin-right: 5%;
        width: 40px;
        height: 40px;
        margin-top: 4%;
    }

    .part2 .under a {
        margin-bottom: 30px;
    }

    .part4 .bg {
        display: none;
    }

    .part4 .top .right {
        background: url(../images/p4_r_bg_wap.png) no-repeat;
        width: 100%;
        position: unset;
        height: auto;
        margin-top: 50px;
        display: flex;
        justify-content: space-evenly;
        background-position: bottom;
        background-size: 100% 64px !important;
    }

    #ScrollBox1 {
        opacity: 0;
        position: absolute;
    }

    #ScrollBox2 {
        opacity: 1;
        position: unset;
    }

    .part3 .swiper-slide .in {
        width: 100%;
        height: 300px;
        background-size: cover !important;
        position: relative;
        border-radius: 10px;
        margin: 0 auto;
        background-position: center !important;
    }

    .part3 .swiper-slide .in p {
        padding: 20px 20px;
        line-height: 22px;
    }

    .part3 .swiper-slide .in .more {
        bottom: 20px;
    }

    .part2 {
        margin: 0 auto;
    }

    .part2 .bg {
        background: linear-gradient(#f4f4f4, #fff);
    }

    .part2 .container {
        width: 90%;
    }

    .part2 .under {
        margin-top: 50px;
    }

    .part4 .container {
        width: 90%;
    }

    .foot .under {
        width: 90%;
        margin: 0 auto;
    }

    .part1 .top .left p {
        width: 90%;
    }


    .part4 .top .right a {
        margin-bottom: 35px;
    }

    .part4 .under a {
        margin-bottom: 30px;
    }
}


@media (max-width: 620px) {

    .w90 {
        width: 90%;
        margin: 0 auto;
    }

    #pc_banner {
        display: none;
    }

    #wap_banner {
        display: block;
        height: 400px;
    }

    .navbtn {
        margin-top: 10%;
    }

    #part1_pc {
        display: none;
    }

    #part1_wap {
        display: block;
    }

    #part1_wap .swiper-slide {
        text-align: center;
        font-size: 18px;
        background: #fff;
    }

    .part1 .mySwiper {
        width: 100%;
        padding-bottom: 100px;
    }

    .part1 .top .left {
        width: 80%;
    }

    .part1 .top .right {
        background: #c7161d;
        width: 90%;
        height: auto;
        position: relative;
        border-radius: 10px;
        position: relative;
        overflow: hidden;
        display: block;
        margin: 0 auto;
        margin-top: 50px;
    }

    .part1 .top .right img {
        width: 30px;
        height: 30px;
        top: 15px;
    }

    .part1 .top .right h2 {
        margin-top: 0;
        font-size: 12px;
        color: #ff464d;
        text-transform: uppercase;
        margin-left: 30px;
        padding-bottom: 5px;
    }

    .part1 .top .right h1 {
        font-size: 18px;
        width: 85%;
        color: #fff;
        padding-top: 20px;
        padding-left: 0;
        overflow: hidden;
        text-overflow: ellipsis;
        white-space: nowrap;
        margin: 0 auto;
    }

    .part1 .top .right p {
        color: #fff;
        margin-top: 30px;
        font-size: 14px;
        line-height: 28px;
        width: 100%;
        overflow: hidden;
        text-overflow: ellipsis;
        display: -webkit-box;
        -webkit-box-orient: vertical;
        -webkit-line-clamp: 2;
        padding-left: 0;
        padding-right: 0;
        width: 85%;
        margin: 10px auto;
        position: relative;
        z-index: 1000;
    }

    .part1 .swiper-slide {
        padding: 0;
        padding-right: 0;
    }

    .part1 .under {
        width: 95%;
        margin: 20px auto;
    }


    .part2 .tit .chname {
        width: auto;
    }

    .part2 .in {
        height: 350px;
    }

    .part2 .in .top {
        position: absolute;
        bottom: -200px;
        width: 100%;
        box-shadow: 1px 1px 10px #ddd;
    }


    .part4 .bg {
        width: 100%;
    }

    .part4 .top .right a {
        width: 40%;
        height:auto;    
        padding: 4px 5px;
    /*    height: 250px;*/
    /*    display: block;*/
    /*    margin-left: 10px;*/
    /*    position: relative;*/
    /*    background-size: 100% 250px !important;*/
    }


    .part4 .top .right a img {
        width: 100%;
        height:100%;
    /*    width: 92%;*/
    /*    height: 96%;*/
    /*    object-fit: cover;*/
    /*    position: relative;*/
    /*    top: 5px;*/
    /*    left: 6px;*/
    }

    .part4 .top .left {
        width: 100%;
        margin-top: 130px;
        margin-left: 30px;
    }

    .part4 .under {
        margin-top: 35px;
    }
    .part4 .under li{
        height:117px;
    }
   .part4 .under #ScrollBox{
        height:117px !important;
   }
    .part4 .under a {
        height:117px;
        padding: 4px 3px;
        /*width: 29%;*/
        /*height: 150px;*/
        /*margin-left: 13px;*/
        /*background-size: 100% 150px !important;*/
    }

    .part4 .under a img {
        height:110px;
        /*width: 90%;*/
        /*height: 95%;*/
        /*object-fit: cover;*/
        /*position: relative;*/
        /*top: 5px;*/
        /*left: 5px;*/
    }

    #part3_wap {
        display: block;
    }

    #part3_pc {
        display: none;
    }

    .part3 .swiper-slide .in {
        width: 100%;
    }

    .part3 .mySwiper {
        margin-left: -20%;
    }

    .part1 .under .in h1 {
        margin-top: 20px;
        font-size: 20px;
        color: #656f81;
        font-weight: bold;
        margin-left: 10%;
    }

    .foot {
        background: url(../images/foot_bg_wap.png) no-repeat;
    }

    .foot .logo {
        margin-bottom: 70px;
    }

    .foot .tel {
        float: unset;
        margin-top: 20px;
        margin-left: unset;
    }


    .foot .top_pc {
        padding-top: 75px;
        display: none;
    }

    .foot .top_wap {
        padding-top: 75px;
        display: block;
        overflow: hidden;
    }

    .foot .under .row .col-lg-6 {
        padding: 0;
    }

    .foot .top_wap {
        margin-bottom: 70px;
    }

    .wap_footer {
        display: block;
        background: #c7161d;
        
        position: sticky;
        bottom: 0;
        left: 0;
        z-index: 100;
    }

    .wap_footer .in {
        margin: 0 auto;
        display: block;
    }

    .wap_footer .in img {
        width: 100%;
        height: 24px;
        object-fit: contain;
        display: block;
        margin-top: 15px;
    }

    .wap_footer .in h1 {
        text-align: center;
        font-size: 12px;
        color: #fff;
        margin-top: 10px;
        margin-bottom: 15px;
        position: relative;
    }

    .wap_footer .col-lg-3::after {
        content: "";
        position: absolute;
        right: 0;
        width: 1px;
        height: 60px;
        opacity: 0.5;
        top: 20px;
        z-index: 1000;
        border: 1px dashed #fff;
    }

    .wap_footer .col-lg-3:last-child::after {
        display: none;
    }

    .foot .under .row .col-lg-4:nth-child(2n) {
        padding-right: 0;
    }

    .foot .under .row .col-lg-12 {
        padding-right: 0 !important;
    }

    .foot .under .row .col-lg-12:nth-child(2n) {
        padding-right: 0 !important;
    }

    .foot .under .row .code {
        padding-right: 0 !important;
    }


    .foot .under .row .retun {
        padding-right: 10px !important;
    }

    .foot .under .row .reset {
        padding-right: 0 !important;
    }

    .mySwiper4 {
        display: block;
    }

    .part2 .under {
        margin-top: 210px;
    }

    .swiper-pagination {
        bottom: 20px !important;
    }

    .swiper-button-prev,
    .swiper-container-rtl .swiper-button-next {
        top: auto !important;
        right: auto !important;
        bottom: 10px !important;
        z-index: 1000 !important;
    }

    .swiper-button-next,
    .swiper-button-prev {
        top: auto !important;
        right: auto !important;
        bottom: 10px !important;
        z-index: 1000 !important;
    }

    .part1 .under .viewall {
        bottom: 40px;
        right: 8px;
    }

    .swiper-button-prev,
    .swiper-container-rtl .swiper-button-next {
        left: 10px !important;
    }

    .part2 .under div {
        padding-right: 0;
        padding-left: 0;
    }
}