html{

        overflow-x: hidden;
}
#home,#news{
    position: relative;
    top:-100px;
}
/* 导航栏 start*/
.nav{
    height: 100px;
    background: #fff;
    position: fixed;
    top:0px;
    left: 0px;
    right: 0px;
    z-index: 22;
    padding:0 20px;
}
.nav .wrap{
    width: 1400px;
    min-width: 1200px;
}
.nav .nav_logo img{
    width: 262px;
    vertical-align: middle;
}
.nav_list li a{
    display: block;
    line-height: 100px;
    position: relative;
    font-size: 20px;
    color:#333;
}
.nav_list li{
    padding: 0 30px;
    cursor: pointer;
}
@media screen and (max-width: 1600px) {  
   .nav_list li{
        padding: 0 25px;
        cursor: pointer;
    }
    .nav .wrap{
        width: 1200px;
        min-width: 1200px;
    }
    .index_banner,
    .ev_banner,
    .iot_banner,
    .video_banner{
        background-size: cover!important;
    }
}
.nav_list li:last-child{
    padding-right: 0;
}
/*.nav_list li:hover,
.nav_list li.active{
    color: #1e8ef3;
    position: relative;
}*/
.is_nav_code{
    position: relative;
}
.is_nav_code:hover .code_img{
    display: block;
}
.code_img{   
    position: absolute;
    top: 73px;
    left: -62px;
    display: none;
}
.code_img img{
    width: 126px;
}
@media screen and (min-width: 750px) {  
    .nav_list li.is_nav:hover a{
        color: #004097;
      /*  border-bottom: 4px solid #004097;*/
    }
    .nav_list li.is_nav:hover a:after{
        content:"";
        position: absolute;
        bottom:30px;
        left:0;
        right: 0;
        height:3px;
        background: #004097;
    }
}
.nav_list li.is_nav.active a{
    color: #004097;
   /* border-bottom: 4px solid #004097;*/
}
.nav_list li.is_nav.active a:after{
        content:"";
        position: absolute;
        bottom:30px;
        left:0;
        right: 0;
        height:3px;
        background: #004097;
    }
.nav_list li:last-child a{
    margin-right: 0px;
}
/* 导航栏 end*/
/*title start*/
.title{
    font-size: 148px;
    font-weight: 800;
    color: #e6e6e6;
    text-align: center;
    position: relative;
    line-height: 150px;
}
.title span{    
    font-size: 40px;
    font-weight: 700;
    color: #004097;
    position: absolute;
    top:50%;
    left:50%;
    transform: translate(-50%,-50%);
}
.title_v{    
    font-size: 148px;
    font-weight: 800;
    color: #e6e6e6;
    text-align: center;
    position: relative;
    writing-mode: vertical-rl;
    transform: rotate(180deg);
}
.title_v span{
    writing-mode: initial;
    font-size: 40px;
    font-weight: 700;
    color: #004097;
    width: 240px;
    position: absolute;
    top: 50%;
    left: -11%;/*
    transform: translate(-50%,-50%);*/
    transform: rotate(180deg);
}
/*title end*/
/*banner start*/
.index_banner{
    height: 1139px;
    background: url(../images/index/banner.png) center center no-repeat;
  /*  margin-top: 100px;*/
  padding-top:100px;
}
.ev_banner{
    height: 600px;
    background: url(../images/ev/ev_banner.png) center center no-repeat;
    margin-top: 100px;
}
.iot_banner{
    height: 680px;
    background: url(../images/iot/iot_banner.png) center center no-repeat;
    margin-top: 99px;
  /* padding-top:100px;*/
}
.video_banner{
    height: 600px;
    background: url(../images/video/video_banner.png) center center no-repeat;
    margin-top: 100px;
}
.index_banner .wrap,.iot_banner .wrap{
    position: relative;
}
.ev_banner .wrap{
    position: relative;
}
.banner_text{
    position: absolute;
    width: 534px;
}
.iot_banner_text{
    left: 27px;
    top: 249px;
}
.EV_banner_text{
    left: 655px;
    top: 387px;
}
.ev_banner .EV_banner_text{
    left: 27px;
    top: 100px;/*
    width: 528px;*/
}
.banner_text{
    color:#fff;
}
.banner_text h2{
    font-size: 36px;
}
.banner_text h3{
    font-size: 40px;
    font-weight: 700;
    margin-bottom: 32px;
}
.banner_text p{
    font-size: 20px;

}
.banner_text a{
    display: block;
    width: 222px;
    height: 52px;
    text-align: center;
    line-height: 50px;
    font-size: 16px;
    color:#fff;
    border:1px solid #004097;
    margin-left: 134px;
    margin-top: 177px;
    background: rgba(0,0,0,0.5);
}
.banner_text.EV_banner_text a{
    border:1px solid #a23c15;
}
/*banner end*/
/*index_video*/
.index_video{
    padding: 80px 0;
    background: #004097;
    margin-top: -20px;
}
.index_video h3{
    height: 100px;
}

.index_video h3.index_video_title1{
    font-size: 40px;
    font-weight: 700;
    color: #ffffff;
    line-height: 17px;
    letter-spacing: 5.6px;
    line-height: 90px;
}
.index_video h3.index_video_title2{
    font-size: 120px;
    font-weight: 700;
    text-align: right;
    color: #4572ae;
    line-height: 17px;
    letter-spacing: 16.8px;
    line-height: 80px;
}
.index_video .index_video_box{
    width: 550px;
    height: 310px;
    position: relative;
    margin-bottom: 10px;
    cursor: pointer;
}
.index_video .index_video_box i{
    position: absolute;
    top:50%;
    left:50%;
    width: 56px;
    height: 56px;
    transform: translate(-50%,-50%);
    background:url(../images/index/video.png) center center no-repeat;
    background-size: cover;

}
.index_video .index_video_box:hover i{
    opacity: 0.8;
}
.index_video .index_video_box img{
    width: 100%
}
.index_video p{
    font-size: 16px;
    font-weight: 400;
    text-align: center;
    color: #ffffff;
    line-height: 17px;
}
/*index_video*/
/*index_about start */
.index_about{
    padding-top:87px;
    padding-bottom: 90px;
    position: relative;
    height: 600px;
}
.index_bg{
    position: absolute;
    top:0px;
    right:0px;
    background: url(../images/index/bg.png) center center no-repeat;
    background-size: cover;
    width: 1093px;
    height: 600px;
    z-index: -1;
}
.index_about_bg{
    background: url(../images/index/about.png) center center no-repeat;
    height: 370px;
    padding-left: 461px;
    padding-top: 164px;
    width: 1190px;
    margin:0 auto;
}
.index_about_bg p{
    width: 640px;
    color:#fff;
    line-height: 1.6;
}
.index_about_bg a{
    display: block;
    width: 222px;
    height: 52px;
    border: 1px solid transparent;
    margin-top: 30px;
    text-align: center;
    line-height: 50px;
    font-size: 16px;
    color:#fff;
    border:1px solid #fff;
    margin-left: 415px;
}
.index_about_bg a:hover{
    border: 1px solid #004097;
    background: rgba(0,0,0,0.4);
}
/*index_about end */
/*index_news start*/
.index_news{
    background: #f2f2f2;
    padding-top: 65px;
    padding-bottom: 90px;
}
.index_news .title{
    margin-bottom: 20px;
}
.index_news_list li{
    height: 58px;
    line-height: 58px;
    margin-bottom: 14px;
}
.index_news_list li a{
    width:calc(100% - 172px);
    height: 60px;
    background: #ffffff;
    font-size: 18px;
    color:#333;
    padding-left: 42px;
}
.index_news_list li a:hover{
    color:#2F66F4;
    box-shadow: -5px -0.09px 17.64px 0.1px #e5d6d6; 
}
.index_news_list li span{
    width: 172px;
    background: #2f66f4;
    color:#fff;
    text-align: center;
}
/*index_news end*/
/*index_tools start*/
.index_tools{
    padding: 60px 0;
}
.index_tools .wrap{
    position: relative;
}
.index_tools_list{
    position: absolute;
    left: 348px;
    top:12%;
}
.index_tools_list li{
     width: 201px;
    height: 268px;
    padding-top: 80px;
    background: #ffffff;
    box-shadow: 0px 0px 38px 0px rgba(0,63,151,0.19), -5px 0px 27px 5px #d2dcec; 
    margin-right: 15px;
    cursor: pointer;
}
.index_tools_list li:hover{
    border: 1px solid #6dabff;
}
.index_tools_list li img{
    display: block;
    margin:0 auto;
    margin-bottom: 35px;
    vertical-align: middle;
}
.index_tools_list li p{

    font-size: 16px;
    font-family: NotoSansCJKsc, NotoSansCJKsc-Regular;
    font-weight: 400;
    text-align: center;
    color: #000000;
}
/*index_tools end*/
.bottom_bg{
    height: 147px;
    background: #004097;
}
/*ev页面 start*/
.ev_case{
    padding-top: 100px;
    padding-bottom: 140px;
}
.ev_case_list{
    flex-wrap: wrap;
    justify-content: space-between;
}
.ev_case_list h2{    
    width: 586px;
    height: 274px;    
    font-size: 40px;
    font-weight: 700;
    color: #004097;
    line-height: 274px;
}
.ev_case_list>div{
    overflow: hidden;
    width: 586px;
    height: 274px;
    margin-bottom: 25px;
    cursor: pointer;
    position: relative;
}
.ev_case_text{
    position: absolute;
    bottom:15px;
    left:30px;
    right:30px;
    border-top:2px solid #fff;
    padding-top: 15px;
}
.ev_case_text p{
    font-size: 20px;
    color:#fff;
    position: relative;
}
.ev_case_text i{
    position: absolute;
    right: 0;
    top: 19px;
    border: 12px solid #fff;
    border-color: transparent transparent transparent #fff;
}
.ev_products .title{
    margin-bottom: 60px;
}
.ev_case_list>div img{
    transition: all 0.5s;
}
.ev_case_list>div img:hover{
    transform: scale(1.1);
}
.ev_products{
    padding-top: 100px;
    padding-bottom: 164px;
    background: #efefef;
}
.ev_products_list li{
    width: 278px;
    height: 347px;
    background: #ffffff;
    cursor: pointer;
    text-align: center;
    position: relative;
}
.ev_products_list li p{
    padding-top:40px;
    padding-left: 50px;
    font-size: 16px;
    color:#333;
    font-weight: 700;
    line-height: 1.6;
    text-align: left;
}
.ev_products_list li a{
    position: absolute;
    bottom:25px;
    left:50%;
    transform: translate(-50%,0);
    padding-bottom: 3px;
    font-size: 16px;
    text-align: center;
    color: #004097;
    font-weight: 700;
    letter-spacing: 2.24px;
    border-bottom: 2px solid #004097;
}
.ev_products_list li a:hover{
    color: #3583E4;
    letter-spacing: 2.24px;
    border-bottom: 2px solid #3583E4;
}
.ev_products_list li:hover{
    box-shadow: -5px -0.09px 17.64px 0.1px #dfc4c4; 
}
.ev_products_list h3{
    height: 60px;
    line-height: 60px;
    background: #2f66f4;
    text-align: center;    
    font-size: 20px;
    text-align: center;
    color: #ffffff;
}
.ev_download{
    padding-top: 70px;
    padding-bottom: 52px;
    background: #004097;
}
.ev_download .wrap{
    position: relative;
}
.ev_download .title_v{
    color: rgb(230, 230, 230,0.3);
    letter-spacing: -10px;
    font-size: 138px;
}
.ev_download .title_v span{
    color:#fff;
    left: -6%;
    letter-spacing: 1px;
}
.ev_download_list{
    position: absolute;
    top: 70px;
    left: 350px;
}
.ev_download_list li {
    width: 827px;
    background: #004097;
    box-shadow: 0px 0px 18px 0px rgba(0,0,0,0.38); 
    margin-bottom: 18px;
}
.ev_download_list li h3{
    width: 145px;
    height: 138px;
    background: #2f66f4;    
    font-size: 20px;
    font-weight: 500;
    text-align: center;
    color: #ffffff;
    display: flex;
    align-items: center;
    justify-content: center;
}
.ev_download_list li>div{
    margin-left: 86px;
    padding-top: 10px;
}
.ev_download_list li>div p{
    width: 519px;
    border-bottom:1px solid #2F66F4;
    line-height: 40px;
    display: flex;
}
.ev_download_list li>div p:last-child{
    border-bottom: 0;
}
.ev_download_list li>div p a{
    font-size: 16px;
}
.ev_download_list li>div p a:hover{
    color:#2F66F4;
}
.ev_download_list li>div p a:first-child{
    width: 200px;
    margin-right: 150px;

}
/*ev页面 end*/
/*iot 页面 start*/
.iot_banner  .iot_banner_text {
   
    left: 642px;
    top: 126px;
}
.iot_slb{
    padding-top: 72px;
    padding-bottom: 150px;
}
.iot_slb_title{    
    font-size: 40px;
    font-weight: 700;
    text-align: center;
    margin-bottom: 110px;
    color: #004097;
}
.iot_slb_item{
    position: relative;
    width: 586px;
    height: 420px;
    margin-bottom: 20px;
    overflow: hidden;
}
.iot_slb_item img{
    transition: all 0.5s;
}
.iot_slb_item img:hover{

    transform: scale(1.1);
}
.iot_slb_item_bottom{
    width: 1193px;
    height: 231px;
}
.iot_case_text {
    position: absolute;
    bottom: 15px;
    left: 30px;
    right: 30px;
    border-top: 2px solid #fff;
    padding-top: 15px;
}
.iot_swiper{
    background: #004097;
    padding-top: 0px ;
    padding-bottom: 0px ;
}
.iot_swiper .wrap{
    width: 1300px;
    align-items: center;
}
.iot_swiper_common{
    margin: 120px 0;
}
.iot_swiper_common1{
    margin-top: 150px;
}
.iot_swiper_nav{
   /* padding-top: 100px;*/
}
.iot_swiper_nav li:first-child{
    margin-bottom: 30px;
}
.iot_swiper_nav li a{
    display: block;
    width: 326px;
    height: 60px;
    background: #2f66f4;
    text-align: center;
    line-height: 60px;
    background: #efefef;
    color: #004097;

}
.iot_swiper_nav li:hover a,
.iot_swiper_nav li.active a{

    background: #2f66f4;
    color:#fff;
}
.iot_swiper_common{
    overflow: hidden;
    width: 713px;
    position: relative;
}
.iot_swiper_common .swiper-slide{
  display: flex;
  justify-content: center;
  align-items: center;
}
.iot_swiper_common .swiper {
    padding-bottom: 40px;
}
.iot_swiper_common .swiper img{
    width: 713px;
}
.iot_swiper_common  .swiper-pagination-bullet-active{
    background: #fff;
}
.swiper-pagination-bullet{
    background: #fff;
}
.iot_case_list{
    background: #4a79af;
    width: 713px;
    margin: 0 auto;
    padding: 50px;
}
.iot_case_list li {
    background: #fff;
    margin: 10px 0;
    border-radius: 4px;
}
.iot_case_list li a {
    color: #004097;
    display: block;
    padding: 10px 20px;
}
.iot_case_list li a:hover {
    color: #2f66f4;
}
.iot_dowload{
    padding-top:130px;
    padding-bottom: 160px;
}
.iot_dowload .wrap{
    width: 1040px;
}
.iot_dowload .title{
    margin-bottom: 110px;
}
.iot_dowload_list li{
    width: 201px;
    height: 263px;
    background: #ffffff;
    box-shadow: 0px 0px 38px 0px rgba(0,63,151,0.19); 
    text-align: center;
    padding-top:70px;
}
.iot_dowload_list li:hover{
    border: 1px solid #6dabff;
}
.iot_dowload_list li img{
    margin-bottom: 35px;
    filter: grayscale(100%); 
    -webkit-filter: grayscale(100%)
}
.iot_dowload_list li:hover img{
    filter: grayscale(0%); 
    -webkit-filter: grayscale(0%)
}
.iot_dowload_list li p{
    font-size: 16px;
    text-align: center;
    color: #000000;
    font-weight: 700;
}
/*IoT 页面 end*/
/*video 页面 start*/
.video_section{
    padding-top: 68px;
    padding-bottom: 150px;
    position: relative;
    z-index: 2;
}
.video_section_bg{
    position: absolute;
    top:0px;
    right:0;
    z-index: -1;
    width: 1583px;
    height: 800px;
    background: url(../images/video/bg.png) right top no-repeat;
}
.video_section .video_title{
    font-size: 40px;
    font-weight: 700;
    text-align: center;
    color: #004097;
    margin-bottom: 60px;
}
.video_section .video_section_item{
    width: 550px;
    margin: 0 auto;
    text-align: center;
    margin-bottom: 35px;
    cursor: pointer;
}
.video_section .video_section_item p{
    font-size: 16px;
    text-align: center;
    color: #004097;
    line-height: 1.6;
    font-weight: 700;
}
.video_section .video_section_item>div{
    width: 550px;
    height: 310px;
    overflow: hidden;
    margin-bottom: 10px;
    position: relative;
}
.video_section .video_section_item>div i{
    position: absolute;
    width: 56px;
    height: 56px;
    top:50%;
    left:50%;
    transform: translate(-50%,-50%);
    background: url(../images/video/play_icon.png) center center no-repeat;
}
.video_section .video_section_item>div img{
    transition: all 0.5s;
}
.video_section .video_section_item>div img:hover{
    transform: scale(1.1);
}
/*video 页面 end*/
.is_allow {
    cursor: pointer;
}
/* pc显示隐藏 start*/
.is_pc {
    display: block;
}
.is_pc_flex {
    display: flex;
}
.is_mobile, .is_mobile_flex {
    display: none!important;
}
.is_mobile_img{
    display: none;
}
/* pc显示隐藏 end*/
@media screen and (max-width: 750px) {
    html {
        font-size: 13.3333vw !important;
        overflow-x: hidden;
    }    
    .wrap {
        width: 100%;
    }
    .is_pc_img{
        display: none;
    }
    .is_mobile_img{
        display: block;
    }
    /* 移动端隐藏 end*/
    .is_pc,
    .is_pc_flex {
        display: none !important;
    }

    .is_mobile {
        display: block !important;
    }

    .is_mobile_flex {
        display: flex !important;
    }

    .pc_nav {
        margin-top: 0px !important;
        width: 100vw;
        height: 0.87rem;
        line-height: 0.87rem;

    }
    /* 移动端隐藏 end*/
    .section{
        padding:0rem 0.3rem;
        margin-bottom: 0.6rem;
    }
    /*导航栏样式*/
    .nav .nav_logo img {
        width: 1.72rem;
        margin-left: 0.3rem;
    }
    .nav_list{
        display: none;
        position: fixed;
        top:0.88rem;
        right:0;
        height: calc(100% - 0.88rem);       
        background: #fff;
        width:3rem;
    }
    .nav_list li{
        padding: 0 0.4rem;
    }
    .nav_list ul{
        display: block;
    }
    .nav {
        height: 0.88rem;/*
        background: #fff;*/
        position: fixed;
        top: 0px;
        left: 0px;
        right: 0px;
        z-index: 22;
    }
    .nav_list li.active:after{
        background: transparent;
    }
    .nav_list li.active{

        background: #f4f9ff;
    }
    .nav_list li a {
        display: block;
        line-height: 0.8rem;
        font-size: 0.3rem;
      /*  color: #fff;*/
        font-weight: 400;
        border-bottom:1px solid #e5dddd;
    }
    .menu_icon{
        position: absolute;
        right: 0;
        top:0;
        height: 0.88rem;
        width: 0.88rem;
        background: url(../images/menu.png) center center no-repeat;
        background-size: 0.48rem 0.48rem;
    }
    .menu_icon.menu_hide{
        background: url(../images/menu_close.png) center center no-repeat;
        background-size: 0.48rem 0.48rem;
    }
   /* .nav_list li.active a{
        border-bottom: 0px solid #1e8ef3;
    }*/
    .nav_list li:hover a{
        border-bottom: 0px solid #1e8ef3;
    }
   .nav_logo{
        display: flex;
       align-items: center;
        height: 0.88rem;
    }
    .is_nav_code_m{
        position: fixed;
        top:0.21rem;
        right:1rem;
    }
    .code_img {
        position: absolute;
        top: 0.5rem;
        left: -1.2rem;
        display: none;
    }
    .is_nav_code_m:hover .code_img{
        display: block;
    }
    .code_img img{
        width: 1.6rem;
    }
    .code_img a img {
        width: 0.82rem;
    }
    .nav_list li.is_nav.active a:after{
        display: none;
    }
    /*导航栏样式*/
    /*title 样式*/
   .title {
        font-size: 0.8rem;
        line-height: 0.8rem;
        margin-bottom: 0.2rem;
    }
    .title span{
        font-size: 0.34rem;
    }
    /*banner*/
    .index_banner {
        height:4.94rem;
        background: url(../images/index/banner_m.png) center center no-repeat;
        background-size: cover;
        margin-top: 0.88rem;
        /* margin-top: 100px; */
        padding-top: 0px;
    }
    .banner_text {
        position: absolute;
        width: 50%;
        height: 3.5rem;
    }
    .iot_banner_text {
        left: 0.34rem;
        top: 0.87rem;
    }
    .EV_banner_text {
        left: 53%;
        top: 0.87rem;
    }
    .banner_text h2 {
        font-size: 0.26rem;
    }
    .banner_text h3 {
        font-size: 0.3rem;
        font-weight: 700;
        margin-bottom: 0.2rem;
    }
    .banner_text p {
        font-size: 0.24rem;
        width: 87%;
    }
    .banner_text a {
        position: absolute;
        display: block;
        width: 1.8rem;
        height: 0.47rem;
        text-align: center;
        line-height: 0.47rem;
        font-size: 0.22rem;
        color: #fff;
        border: 1px solid #004097;
        margin-left: 0.68rem;
        margin-top: 0;
        background: rgba(0,0,0,0.5);
        bottom: 0;
    }
    .EV_banner_text a{
        margin-top: 21%;
    }
    /*banner*/
    /*index_video*/
    .index_video .flex{
        display: block;
    }
    .index_video {
        padding: 0.24rem 0.3rem;
        padding-bottom: 0rem;
        margin-bottom: 0.3rem;
        background: transparent;
        margin-top: 0;
    }
    .index_video .index_video_box {
        width: 100%;
        height: 3.3rem;
        position: relative;
        margin-bottom: 0rem;
        cursor: pointer;
    }
    .index_video .index_video_box img {
        width: 100%;
        height: 100%;
        object-fit: cover;
    }
    .index_video p {
        font-size: 0.26rem;
        color: #004097;
        line-height: 1.8;
        margin-bottom: 0.3rem;
    }
    .index_video .index_video_box i{
        width: 0.56rem;
        height: 0.56rem;
    }
    /*index_banner*/
    .index_about{
        height: auto;
        padding-top: 0.16rem;
    }
    .index_about_bg {
        background: url(../images/index/about_m.png) center center no-repeat;
        background-size: cover;
        height: 2.59rem;
        padding-left: 0;
        padding-top:1.7rem;
        width: 100%;
    }
    .index_about_bg a {
        display: block;
        width: 2.22rem;
        height: 0.52rem;
        border: 1px solid transparent;
        margin-top: 0rem;
        text-align: center;
        line-height: 0.52rem;
        font-size: 0.22rem;
        color: #fff;
        border: 1px solid #fff;
        margin-left: 0;
        margin: 0 auto;
    }
    .index_about_text {
        font-size: 0.24rem;
        line-height: 1.8;
    }
    .index_news {
        padding-top: 0.4rem;
        padding-bottom: 0.4rem;
    }
    .index_news .title{
        margin-bottom: 0.2rem;
    }
    .index_news_list li {
        height: auto;
        line-height: 1.8;
        margin-bottom: 0.1rem;
        position: relative;
        background: #ffffff;
        padding-top:0.6rem;
        padding-bottom: 0.2rem;
    }
    .index_news_list li span {
        width: auto;
        background: #2f66f4;
        color: #fff;
        text-align: center;
        position: absolute;
        top: 0px; 
        left: 0px; 
        padding: 0 0.1rem;
    }
    .index_news_list li a {
        width: 100%;
        height: auto;
        background: #ffffff;
        font-size: 0.24rem;
        color: #333;
        padding-left: 0.2rem;
        padding-right:  0.2rem;
        line-height: 1.2;
    }
    .index_news_list li:hover a {
        box-shadow: -5px -0.09px 17.64px 0.1px #e5d6d6;
    }

    .index_news_list li a:hover {
        box-shadow: -5px -0.09px 17.64px 0.1px transparent;
    }
    .bottom_bg {
        height: 0.6rem;
        background: #004097;
    }
    .index_tools_list {
        position: static;
        left: 0;
        top: 0;
        flex-wrap: wrap;
        justify-content: space-between;
    }    
    .index_tools_list li {
        width: 47%;
        height: 3rem;
        padding-top: 0.7rem;
        background: #ffffff;
        box-shadow: -1px 0px 8px 1px #d2dcec; 
        margin-right: 0;
        cursor: pointer;
        margin-bottom: 0.2rem;
    }
    .index_tools_list li img {
        margin-bottom: 0.16rem;
        width: 1.08rem;
    }

    /*ev  页面样式*/
    .ev_case{
        margin-bottom: 0.4rem;
        padding-top: 0.4rem;
    }

    .ev_banner {
        height: 4.55rem;
        background: url(../images/ev/ev_banner_m.png) center center no-repeat;
        margin-top: 0.88rem;
    }
    .ev_banner .EV_banner_text {
        left: 0.55rem;
        top: 0.68rem;
        /* width: 528px; */
        width: 66%;
    }
    .ev_case_list h2 {
        width: 100%;
        height: auto;
        font-size: 0.4rem;
        font-weight: 700;
        color: #004097;
        line-height: 1.8;
        text-align: center;
        margin-bottom: 0.15rem;
    }
    .ev_case_list{
        display: block;
    }
    .ev_case_list>div {
        width: 100%;
        height: 3.33rem;
        margin-bottom: 0.2rem;
    }
    .ev_case_text {
        position: absolute;
        bottom: 15px;
        left: 0.3rem;
        right: 0.3rem;
        border-top: 0.02rem solid #fff;
        padding-top: 0.15rem;
    }
    .ev_case_text i {
        top: 0.25rem;
        border: 0.15rem solid #fff;
        border-color: transparent transparent transparent #fff;
    }
    .ev_case_text p {
        font-size: 0.24rem;
        color: #fff;
        position: relative;
    }
    .ev_case_list>div img{
        width: 100%;
    }
    .ev_products{
        padding-top: 0.4rem;
        padding-bottom: 0.2rem;
    }
    .ev_products .title {
        margin-bottom: 0.3rem;
    }
    .ev_products_list {
       flex-wrap:wrap;
    }
    .ev_products_list li {
        width: 48%;
        height: auto;
        background: #ffffff;
        cursor: pointer;
        text-align: center;
        position: relative;
        padding-bottom: 1rem;
        margin-bottom: 0.2rem;
    }
    .ev_products_list h3 {
        height: 0.6rem;
        line-height: 0.6rem;
        font-size: 0.28rem;
    }
    .ev_products_list li p {
        padding-top: 0.2rem;
        padding-left: 0.2rem;
        font-size: 0.26rem;
        color: #333;
        font-weight: 400;
        line-height: 1.6;
        text-align: left;
    }

    .ev_products_list li a {
        bottom: 0.25rem;
        padding-bottom: 3px;
        font-size: 0.24rem;
        letter-spacing: 2.24px;
        border-bottom: 0.02rem solid #004097;
    }
    .ev_download{
        padding-top: 0.4rem;
        padding-bottom: 0.4rem;
    }
    .ev_download .title{
        color: rgba(152, 196, 255,0.2);
        margin-bottom: 0.4rem;
    }
    .ev_download .title span{
        color:#fff;
    }
    .ev_download_list{
        position: static;
    }
    .ev_download_list li h3 {
        width: 1.54rem;
        height: 1.73rem;
        background: #2f66f4;
        font-size: 0.26rem;
    }
    .ev_download_list li{
        width: 100%;
        margin-bottom: 0.46rem;
        padding-right: 0.3rem;
    }
    .ev_download_list li>div {
        margin-left: 0.2rem;
        padding-top: 0.1rem;
        width: calc(100% - 1.54rem);
    }
    .ev_download_list li>div p {
        width:100%;
        border-bottom: 1px solid #2F66F4;
        line-height: 0.5rem;
        display: flex;
    }
    .ev_download_list li>div p a:first-child {
        width: 48%;
        margin-right: 0;
    }
    .ev_download_list li>div p a {
        font-size: 0.24rem;
        width: 50%;
    }
    /*iot 页面*/
    .iot_banner {
        height: 4.5rem;
        background: url(../images/iot/iot_banner_m.png) center center no-repeat;
        margin-top: 0.88rem;
        /* padding-top: 100px; */
    }
    .iot_banner .iot_banner_text {
        left: 37%;
        top: 0.62rem;
        width: 66%;
    }
    .iot_slb{
        padding-top: 0.6rem;
    }
    .iot_slb_title {
        font-size: 0.4rem;
        font-weight: 700;
        text-align: center;
        margin-bottom: 0.2rem;
        color: #004097;
    }
    .iot_slb .wrap .flex{
        display: block;
    }
    .iot_slb_item {
        position: relative;
        width: 100%;
        height: auto;
        margin-bottom: 0;
        overflow: hidden;
    }
    .iot_slb_item img{
        width: 100%;
    }
     .iot_swiper{
        padding-bottom: 0.4rem;
     }
    .iot_swiper .wrap{
        width: 100%;
        display: block;
    }
    .iot_swiper_common {
        overflow: hidden;
        width: 100%;
        position: relative;
        padding: 0.2rem 0;
        padding-bottom: 0;
        margin: 0;
        margin-bottom: 0.4rem;
    }
    .iot_swiper_common .swiper img {
        width: 100%;
    }
    .iot_case_list {
        background: #4a79af;
        width: 100%;
        margin: 0 auto;
        padding: 0.5rem;
    }
    .iot_swiper_nav_m{
        background: #2f66f4;
        height: 0.8rem;
        display: flex;
        justify-content: space-between;
        align-items: center;
        padding: 0 0.2rem;
        margin-left: -0.3rem;
        width: calc(100% + 0.6rem);
    }
    .iot_swiper_nav_m p{
        font-size: 0.32rem;
        color:#fff;
    }
    .iot_swiper_nav_m i{
        width: 0.32rem;
        height: 0.32rem;
        background:url(../images/iot/reduce.png) center center no-repeat;
        background-size: 0.32rem 0.04rem;
    }
    .iot_swiper_nav_m i.active{
        width: 0.32rem;
        height: 0.32rem;
        background:url(../images/iot/add.png) center center no-repeat;
        background-size: cover;
    }
    .iot_dowload .wrap{
        width: 100%;
    }
    .iot_dowload .title{
        margin-bottom: 0.4rem;
    }
    .iot_dowload_list {
        display: block;
    }
    .iot_dowload_list li {
        width: 100%;
        height: 1.37rem;
        background: #ffffff;
        box-shadow: 0px 0px 0.38rem 0px rgba(0,63,151,0.19);
        text-align: center;
        padding-top: 0;
        display: flex;
        align-items: center;
        justify-content: space-between;
        padding: 0 0.2rem;
        margin-bottom: 0.2rem;
    }
    .iot_dowload_list li p {
        font-size: 0.26rem;
        font-weight: 400;
    }
    .iot_dowload_list li img {
        margin-bottom: 0;
        width: 0.8rem;
        filter: grayscale(100%);
        -webkit-filter: grayscale(100%);
    }
    /*video*/
    .video_banner {
        height: 4.5rem;
        background: url(../images/video/video_banner_m.png) center center no-repeat;
        background-size: cover;
        margin-top: 0.88rem;
    }
    .video_section{
        padding-top: 0.7rem;
    }
    .video_section_list {
        display: block;
    }
    .video_section .video_section_item {
        width: 100%;
        margin: 0 auto;
        text-align: center;
        margin-bottom: 0.3rem;
        cursor: pointer;
    }
    .video_section_bg{
        display: none;
    }
    .video_section .video_section_item>div img{
        width: 100%;
    }
    .video_section .video_title {
        font-size: 0.4rem;
        font-weight: 700;
        text-align: center;
        color: #004097;
        margin-bottom: 0.2rem;
    }
    .video_section .video_section_item>div {
        width: 100%;
        height: auto;
        overflow: hidden;
        margin-bottom: 0rem;
        position: relative;
    }
    .video_section .video_section_item p {
        font-size: 0.26rem;
        text-align: center;
        color: #004097;
        line-height: 1.6;
        font-weight: 400;
    }
}