.w12{
  width: 1200px;
  margin: 0 auto;
}
.flex{
  display: flex;
  align-items: center;
  justify-content: flex-start;
}

.space_between{
  justify-content: space-between;
}
.part {
  position: relative;
}

.layui-layer-setwin {
  z-index: 222222;
}
/*header start*/
header{
  background: #CDECE1;
  position: fixed;
  left: 0px;
  top: 0px;
  width: 100%;
  z-index: 10;
}
header>div{
  height: 80px;
}
.logo{
  width: 151px;
  vertical-align: middle;
  margin-right: 34px;
}
.logo2{
  width: 146px;
  vertical-align: middle;
}
header ul{
  font-size: 16px;
  font-weight: 700;
  text-align: left;
  color: #000;
  line-height: 80px;
}
header ul li{
  position: relative;
  margin-left: 40px;
  cursor: pointer;
}
header ul li.active::after{
  content:"";
  width: 40px;
  height: 4px;
  position: absolute;
  left:50%;
  bottom: 0px;
  margin-left: -10px;
  background: #43B067;
}
.nav_list .nav_icon{
  margin-right: 7px;
  display: inline-block;
  width: 22px;
  height: 22px;
  background-image: url(../img/icon.png);
  background-size: 100% 100%;
  background-repeat: no-repeat;
  vertical-align: sub;
}
.nav_list .nav_text{
  color:#E60012;
  margin:0 2px;
}
header ul li.navDown{
  margin-left: 27px;
}
.navDown {
  position: relative;
  padding-left: 13px;
  padding-right: 23px;
}
.historyList{
  display: none;
  position: absolute;
  top: 80px;
  right: 0px;
  width: 220px;
  background:#F1FCEE;
  box-sizing: border-box;
}
.historyList a{
  display: block;
  padding-left: 12px;
  font-size: 16px;
  font-weight: 700;
  text-align: left;
  color: #333;
  line-height: 36.5px;
  letter-spacing: 1.6px;
}
.historyList a:hover{
  background: #E1F8E9;
}
.navDown b {
  width: 0;
  height: 0;
  border-top: 6px #E91C2C solid;
  border-left: 6px transparent solid;
  border-right: 6px transparent solid;
  border-bottom: 6px transparent solid;
  position: absolute;
  right: 10px;
  top: 38px;
}

/*header end*/
.banner{
  padding-top: 80px;
}
.banner img{
  width: 100%;
  vertical-align: middle;
}

#video_player{
    position: fixed!important;
    left:50%;
    top: 50%;
    margin-left: -450px;
    margin-top: -277px;
    width: 900px;
    height: 555px;
    z-index: 16;
}
.is_pc{
    display: block;
}
.is_pc_flex{
    display: flex;
}
.is_mobile,.is_mobile_flex{
    display: none;
}
.layui-layer-title {
  position: relative;
  z-index: 99;
}
@media (max-width: 750px) {
  html{
    font-size: 0.133333333vw !important;  
  }
  .is_mobile{
    display: block;
  }
  .is_mobile_flex{
    display: flex;
  }
  .is_pc,.is_pc_flex{
    display: none;
  }
  .w12{
    width: 100vw;
  }
  .logo{
    width: 149rem;
    height: 46rem;
    margin-right: 23rem;
  }
  .logo2{
    width: 146rem;
    height: 53rem;
    margin-right: 0px;
  }
  header{
    padding-left: 34rem;
    padding-right: 24rem;
    background:transparent;
    background-image: url(../img/header_m.png);
    background-repeat: no-repeat;
    background-position: -46rem 0;
    background-size: cover;
    background-color: #e1f8e9;
  }
  header>div{
    height: 91rem;   
  }
  .banner{
    padding-top: 89rem;   
  }
  
  .phone{
    font-size: 22rem;
    margin-top:26rem ; 
    line-height: 1; 
      
  }
  .email{
    font-size: 22rem;
    margin-top:26rem ; 
    line-height: 36rem  
  }

  header .is_mobile{
    width: 40rem;
    height: 26rem;
  }
  header>.w12{
    width: calc(100% - 58rem);
    margin: 0px;
  }
  .nav_list{
    display: none;
    position: absolute;
    height: 1060rem;
    width: 460rem;
    right: 0px;
    top: 87rem;
    background: #F1FCEE;
  }
  header ul li{
    padding-left: 50rem;
    margin-left: 0px;
    border-bottom: 1px solid #f4dad7;
  }
  header ul li.navDown{
    border-bottom: 0;
  }
  header ul {
    font-size: 30rem;
    font-weight: 500;
    text-align: left;
    color: #000;
    line-height: 88rem;
  }
  header ul li.active::after{
    display: none;
  }

  .nav_list .nav_icon {
    margin-right: 30rem;
    width: 28rem;
    height: 28rem;
    background-image: url(../img/icon.png);
  }
  .navDown {
    position: relative;
    padding-left: 0;
    padding-right: 0;
  }
  .navDown span{
    padding-left: 50rem;
    color: #E91C2C;
  }
  .navDown b{        
    left: 239rem;
    right: auto;
    top: 40rem;
    z-index: 1000;
    border-top: 15rem #E91C2C solid;
    border-left: 11rem transparent solid;
    border-right: 11rem transparent solid;
    border-bottom: 15rem transparent solid;
    position: absolute;
  }
  header ul li.navDown{
    margin-left: 0;
  }
  .historyList{
    display: block;
    position: static;
    top: 80px;
    right: 0px;
    width: 100%;
    height: 184px;
    background: none;
    box-sizing: border-box;
    outline: none;
  }
  .historyList a {
    display: block;
    padding-left: 50rem;
    font-size: 30rem;
    font-weight: 400;
    text-align: left;
    color: #000;
    line-height:88rem;
    letter-spacing:0;   
  }
  .historyList a:hover {
    background: #E1F8E9;
  }
  .historyList a.link{
    background: #E1F8E9;
  }
}