body{
    margin: 0;
    font-family: Arial, Helvetica, sans-serif;
}
ul{
    padding: 0;
    margin: 0;
}
a {                           
  text-decoration: none;
}     
video{
  border-radius: 1.875rem;
}
/*滚动条样式*/
body::-webkit-scrollbar,.ecg-list::-webkit-scrollbar {
    /*滚动条整体样式*/
    width: 0.4rem !important;
    height: 0.4rem !important;
    /*高宽分别对应横竖滚动条的尺寸*/
}
body::-webkit-scrollbar-thumb,.ecg-list::-webkit-scrollbar-thumb {
    /*滚动条里面小方块*/
    border-radius: 0.4rem;
    background-color: #1c3574;
}
body::-webkit-scrollbar-track,.ecg-list::-webkit-scrollbar-track {
    /*滚动条里面轨道*/
    box-shadow: inset 0 0 0.4rem rgba(0, 0, 0, 0.2);
    background: #ededed;
    border-radius: 0.4rem;
}
@media only screen and (max-width: 4480px) and (min-width: 4160px){
  html{
    font-size: 34px;
  }
}
@media only screen and (max-width: 4160px) and (min-width: 3840px){
    html{
      font-size: 32px;
    }
}
@media only screen and (max-width: 3840px) and (min-width: 3520px){
    html{
      font-size: 30px;
    }
}
@media only screen and (max-width: 3840px) and (min-width: 3520px){
    html{
      font-size: 28px;
    }
}
@media only screen and (max-width: 3520px) and (min-width: 3200px){
    html{
      font-size: 26px;
    }
}
@media only screen and (max-width: 3200px) and (min-width: 2880px){
    html{
      font-size: 24px;
    }
}
@media only screen and (max-width: 2880px) and (min-width: 2560px){
    html{
      font-size: 22px;
    }
}
@media only screen and (max-width: 2560px) and (min-width: 2240px){
    html{
      font-size: 20px;
    }
}
@media only screen and (max-width: 2240px) and (min-width: 1920px){
    html{
      font-size: 18px;
    }
}
@media only screen and (max-width: 1920px) and (min-width: 1760px){
    html{
      font-size: 16px;
    }
}
@media only screen and (max-width: 1760px) and (min-width: 1600px){
  html{
    font-size: 15px;
  }
}
@media only screen and (max-width: 1600px) and (min-width: 1500px){
    html{
      font-size: 14px;
    }
}
@media only screen and (max-width: 1500px) and (min-width: 1400px){
  html{
    font-size: 13px;
  }
}
@media only screen and (max-width: 1400px) and (min-width: 1280px){
  html{
    font-size: 12px;
  }
}
@media only screen and (max-width: 1280px) and (min-width: 1190px){
    html{
        font-size: 11px;
    }
}
@media only screen and (max-width: 1190px) and (min-width: 1024px){
  html{
      font-size: 10px;
  }
}
@media only screen and (max-width: 1024px){
  .heard-box{
    display: none !important;
  }
  .heard-logo-phone{
    height: 5.5rem !important;
    width: 19.3rem !important;
  }
  .heard-box-phone{
    display:block !important;
    display: flex !important;
    height: 6.4vh !important;
  }
  .swiper1-box{
    height: 38rem !important;
  }
  .videoText-box > video{
    height: auto !important;
  }
  .videoText-text{
    font-size: 3rem !important;
  }
  .title-maximg{
    height: 6.18rem !important;
    width: 6.18rem !important;
  }
  .title-minimg{
    height: 3.43rem !important;
    width: 3.43rem !important;
  }
  .swiper-text{
    top: 10rem !important;
    font-size: 3rem !important;
  }
  .swiper-text-bottom{
    font-size: 1.5rem !important;
  }
  .title-text{
    margin-left: 2.5rem !important;
    margin-top: 5rem !important;
    font-size: 5rem !important;
  }
  .Details-go > a > img{
    height: 2.3rem !important;
    width: 3.5rem !important;
  }
  .videoText-maxbox{
    display: block !important;
  }
  .videoText-left{
    width: 100% !important;
  }
  .videoText-right{
    width: 100% !important;
    margin-right: 0 !important;
    font-size: 3rem !important;
  }
  .breadcrumb-center > img{
    height: 4rem !important;
     width: 4rem !important;
  }
  .breadcrumb-center{
    font-size: 3rem !important;
  }
  .general-box{
    font-size: 2.8rem;
  }
  .category-title{
    font-size: 4.25rem !important;
  }
  .category-message {
    display: block !important;
    font-size: 2.5rem !important;
    margin-top: 3rem !important;
    height: 8rem !important;
    line-height: 3rem !important;
  }
  .category-top{
    width: 80% !important;
  }
  .category-message-left{
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    font-size: 2.5rem !important;
  }
  .category-message-left :nth-child(2){
    margin-left: 0 !important;
  }
  .category-message-look{
    width: 2.8rem !important;
    height: 2.5rem !important;
  }
  .category-content{
    font-size: 2.8rem;
  }
  .category-subtitle{
    font-size: 2.9rem !important;
  }
  .across > a{
    width: 48% !important;
  }
  .across > a > div{
    height: 28rem !important;
    font-size: 3rem !important;
  }
  .across >a> div > img{
    height: 10rem !important;
    width: 10rem !important;
    margin-top: 5rem !important;
  }
  .brief:hover{
    width: 28rem !important;
    height: 25rem !important; 
  }
  .across > a:nth-child(2) > div:hover {
    width: 28rem !important;
    height: 25rem !important; 
  }
  .across > a:nth-child(3) > div:hover {
    width: 28rem !important;
    height: 25rem !important; 
  }
  .across > a:nth-child(4) > div:hover {
    width: 28rem !important;
    height: 25rem !important; 
  }
  .swiper3-box{
    height: 20vh !important;
  }
  .product-across-list > div{
    width: 50% !important;
    height: 25rem !important;
  }
  .product-across-list > div > a{
    width: 100% !important;
    font-size: 2.8rem !important;
  }
  .product-across-list > div > a > img{
    height: 20rem !important;
  }
  .product-across-page{
    line-height: 4rem !important;
    font-size: 2.5rem;
  }
  .product-across-up-page, .product-across-next-page{
    width: 9rem !important;
    height: 4rem !important;
  }
  .product-across-center-page > div{
    min-width: 5rem !important;
    height: 4rem !important;
    border-radius: 1rem !important;
  }
  .product-vertical-list-title > a{
    font-size: 3rem !important;
  }
  .product-vertical-list-subTitle{
    font-size: 2.5rem !important ;
  }
  .product-vertical-list-time{
    font-size: 2.3rem !important;
  }
  .product-vertical-page{
    line-height: 4rem !important;
    font-size: 2.5rem ;
  }
  .products-title{
    font-size: 3.7rem !important;
  }
  .products-introduce-one{
    font-size: 3.7rem !important;
  }
  .products-video{
    height: auto !important;
  }
  .swiper2-box{
    height: 35rem  !important;
  }
  .products,.product-vertical,.product-across,.across,.category-box,.videoText-box2,.videoText-box,.general-box,.breadcrumb-center,.category-content,.bottom-box{
    width: 90% !important;
  }
  .swiper2-slide > img{
    height: 72% !important;
  }
  .products-swiper-bottom-text{
    height: 28% !important;
    padding-left: 2rem !important;
    padding-right: 2rem !important;
  }
  .bottom-left-ul-title > a{
    font-size: 3rem !important;
  }
  .bottom-left-ul{
    flex-wrap: wrap;
  }
  .bottom-left{
    width: 100% !important;
  }
  .bottom-box-top{
    display: block !important;
  }
  .bottom-left-ul > li{
    margin-bottom: 3rem !important;
  }
  .bottom-left-ul-subtitle > li > a{
    font-size: 2.2rem !important;
  }
  .bottom-right{
    width: auto !important;
    justify-content:left !important;  
  }
  .friendlyLinks{
    font-size: 3rem !important;
  }
  .friendlyLinks > span > a{
    font-size: 2.5rem !important;
  }
  .icp-box{
    font-size: 2.5rem !important;
    padding-bottom: 2rem !important;
  }
  .videoText-left > video{
    height: auto !important;
  }
  .category-box img {
    width: 100% !important;
    height: auto !important;
  }
}
@media only screen and (max-width: 1024px) and (min-width: 908px) {
    html{
        font-size: 9px;
    }
}
@media only screen and (max-width: 908px) and (min-width: 742px) {
  html{
      font-size: 8px;
  }
}
@media only screen and (max-width: 742px) and (min-width: 576px) {
  html{
      font-size: 7px;
  }
}
@media only screen and (max-width: 576px) and (min-width: 410px) {
  html{
      font-size: 6px;
  }
}
@media only screen and (max-width: 410px) and (min-width: 244px) {
  html{
      font-size: 5px;
  }
}