html{
    margin: 0;
    padding: 0;
    font-size: 89px;
}
body{
    margin: 0;
    padding: 0;
}
h1{
    margin: 0;
    height: 0;
    width: 0;
    text-indent: -9999em;
    display: none;
}
.header{
    width: 100%;
    height: 1rem;
    box-shadow: 0rem 0.03rem 0.06rem 0.01rem rgba(93,93,93,0.16);
    border-radius: 0rem 0rem 0rem 0rem;
    display: flex;
    position: absolute;
    top: 0;
    z-index: 9;
    position: fixed;
    transition: 0.5s
}
.hd-flex{
    display: flex;
    align-items: center;
    max-width: 15.4rem;
    position: relative;
    margin: 0 auto;
}
.hd-logo{
    margin-right: 2.09rem;
    background-image: url(../img/首页logo.png);
    background-size: cover;
    width:2.08rem;
    height: 0.76rem;
}
.hd-xiala{
    display: none;
        left: 50%;
    transform: translateX(-50%);
    position: absolute;
    /*display: block !important;*/
    height: auto !important;
    background: #FFFFFF;
    width: 1.4rem;
box-shadow: 0rem 0.03rem 0.06rem 0.01rem rgba(0,0,0,0.1);
padding: 0.14rem 0;
border-radius: 0rem 0rem 0.1rem 0.1rem;
}
.hd-xialak:first-child{
    padding-top: 0;
}

.hd-xialak{
    text-align: center;
    font-family: Microsoft YaHei, Microsoft YaHei;
font-weight: 400;
font-size: 0.16rem;
color: #3D3D3D;
padding-top: 0.14rem;
}
.hd-xialak:hover{
    color: #B30000;
}
.nav{
    margin-right: 0.5rem;
}
.nav>ul{
    display: flex;
    gap: 0.36rem;
    margin: 0;
    padding: 0;
}
.nav>ul>a{
    text-decoration: none;
}
.nav>ul>a>li{
    position: relative;
    font-family: Microsoft YaHei, Microsoft YaHei;
    font-weight: 400;
    font-size: 0.22rem;
    color: #FFFFFF;
    font-style: normal;
    text-transform: none;
    list-style: none;
}
.hd-l1{ 
    height: 1rem;
    display: flex;
    justify-content: center;
    align-items: center;
}
.nav>ul>a>li:hover .hd-l1{
    color: #B30000 !important;
    font-weight: bold;
    height: 1rem;
    border-bottom: 0.03rem solid #B30000;
}
.nav>ul>a>li:hover .hd-xiala{
    display: block;
}
.search{
    background-image: url(../img/搜索.png);
    background-size: cover;
    width: 0.2rem;
    height: 0.2rem;
    margin-right: 0.23rem;
    cursor: pointer;
}
.hd-line{
    width: 0rem;
    height: 0.28rem;
    border: 0.01rem solid #D5D5D5;
    margin-right: 0.23rem;
}
.cn{
    background-image: url(../img/cn.png);
    background-size: cover;
    width: 0.4rem;
    height: 0.2rem;
    display: flex;
    justify-content: center;
    cursor: pointer;
}
.en{
    background-image: url(../img/en.png);
    background-size: cover;
    width: 0.4rem;
    height: 0.2rem;
    display: flex;
    justify-content: center;
    cursor: pointer;

}
.cn>span{
    width: 0.21rem;
    height: 0.19rem;
    font-family: Microsoft YaHei, Microsoft YaHei;
    font-weight: 400;
    font-size: 0.14rem;
    color: #FFFFFF;
    text-align: left;
    font-style: normal;
    text-transform: none;
}
.en>span{
    width: 0.21rem;
    height: 0.19rem;
    font-family: Microsoft YaHei, Microsoft YaHei;
    font-weight: 400;
    font-size: 0.14rem;
    color: #999999;
    text-align: left;
    font-style: normal;
    text-transform: none;
}

.header.active{
    background: #fff !important;
}

.header.active .search{
    filter: invert(1) !important;
}

.header.active .hd-l1{
    color: #333333 !important;
}