.header{
    padding: 0 15rem;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin: 0 auto;
}

.head{
    position: fixed;
    top: 0;
    z-index: 100;
    width: 100%;
    height: 12rem;
    border-bottom: 1px rgb(244,244,244) solid;
    background: #fff;

}

#head{
    height: 12rem;
    background-color: #fff;
    width: 1px;
}

.header>a{
    width: 286px;
    height: 36px;
}

.header>a img{
    width: 100%;
}

.header-nav{
    display: flex;
    align-items: center;
}

.header-nav>div{
    height: 19px;
    width: 1px;
    background: #3D3E3E;
    margin: 0 40px;
}

.header-nav a{
    font-size: 18px;
font-family: Microsoft YaHei;
font-weight: 400;
color: #3D3E3E;
    transition: .5s;
    white-space: nowrap;
}

.header-nav li{
    position: relative;
}

.header-nav .active,
.header-nav li:hover{
    font-weight: 900;
}

.header-nav li div{
    position: absolute;
    bottom: -9px;
    width: 0%;
    height: 6px;
    background: rgba(251,178,4,1);
    transition: .5s;

}

.header-nav .active div,
.header-nav li:hover div{
    width: 100%;
}

.header-nav .active a,
.header-nav li:hover a{
    font-size: 22px;
font-family: Microsoft YaHei;
font-weight: bold;
color: #009996;
}

.header-nav .active .en,
.header-m-nav .active .en{
    display: block;
}

.header-nav .active a:last-of-type,
.header-m-nav .active a:last-of-type{
    display: none;
}

.header-nav li .en,
.header-m-nav li .en{
    display: none;
}

.header-nav li a:last-of-type,
.header-m-nav li a:last-of-type{
    display: block;
}

.header-m{
    position: fixed;
    top: 0;
    z-index: 1000;
    display: none;
    align-items: center;
    justify-content: center;
    display: none;
    height: 44px;
    width: 100%;
    background: #fff;
}

.header-m>a{
    width: 50%;
}

.header-m img{
    width: 100%;
}

.menu-btn{
    position: absolute;
    top: 10px;
    left: 4%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    width: 33px;
    height: 22px;
}

.menu-btn div{
    background: #000;
    width: 100%;
    height: 2px;
    transition: .5s;
}

.menu-btn div:first-of-type{
position: absolute;
top: 0;
}

.menu-btn div:last-of-type{
    position: absolute;
    bottom: 0;
    }

.menu_btn div:first-of-type{
transform: rotate(45deg);
top: 50%;
}

.menu_btn div:nth-of-type(2){
    opacity: 0;
}

.menu_btn div:last-of-type{
    transform: rotate(-45deg);
    position: absolute;
    top: 50%;
}

.menu_sousuo{
    position: absolute;
    display: flex;
    align-items: center;
    justify-content: center;
    top: 10px;
    right: 4%;
    width: 33px !important;
    height: 22px;
}

.menu_sousuo .iconfont{
    font-size: 24px;
    color: #000;
}

.header-m-nav{
    position: absolute;
    top: 44px;
    right: 100%;
    z-index: 10;
    width: 85%;
    height: 100vh;
    background: #009996;
    opacity: 0;
    transition: .5s;
}

.header_m .header-m-nav{
    right: 15%;
    opacity: 1;
}


.header-m-nav ul{
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    align-items: center;
    height: auto;
    padding: 20px 0;
}

.header-m-nav li{
    margin: 30px auto;
    width: fit-content;
    text-align: center;
}

.header-m-nav .active div{
    height: 3px;
    width: 100%;
    margin: 5px auto 0 auto;
    background: rgba(251,178,4,1);
}

.header-m-nav a{
    margin: 0;
    font-size: 12px;
    color: #fff;
}

.header-m .header-m-nav a{
    margin: 0;
    font-size: 18px;
    color: #fff;
}

.header-b{
    position: fixed;
    top: 44px;
    left: 0;
    width: 0;
    height: 100vh;
    background: rgba(0,0,0,0.5);
    transition: .2s;
}

.header_m .header-b{
    width: 100%;
}

.header-input-b{
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    z-index: 110;
    width: 100vw;
    height: 100vh;
    background: rgba(0,0,0,0.5);
}

.header-input-container{
    width: 100%;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: #fff;
}

input:-internal-autofill-selected {
    background-color:rgba(0,0,0,0) !important;
}

.header-input{
    position: relative;
    width: 85%;
    height: 70%;
    border: 1px solid rgb(149, 149, 149);
    display: flex;
    align-items: center;
    justify-content: center;
}
.header-input form{
    border: 0px;
    outline: none;
    width: 80%;
}
.header-input input{
    border: 0px;
    outline: none;
    width: 100%;
    background: rgba(0,0,0,0);
}
.header-input i{
    position: absolute;
    left: 8px;
    color: #000;
    font-size: 18px;
}

@media screen and (max-width: 1640px) {

    .header>a{
        width: 237.38px;
        height: 29.88px;
    }
    
    .header-nav>div{
        height: 15.8px;
        margin: 0 30.2px;
    }
    
    .header-nav a{
        font-size: 18px;
    }
    
    .header-nav li div{
        bottom: -9px;
        height: 4.98px;
    
    }
    
    .header-nav .active a,
    .header-nav li:hover a{
        font-size: 22px;
    }
}
/* 0.83 */

@media screen and (max-width:1440px) {

    .header>a{
        width: 214.5px;
        height: 27px;
    }
    
    .header-nav>div{
        height: 14.25px;
        margin: 0 30px;
    }
    
    .header-nav a{
        font-size: 13.5px;
    }
    
    .header-nav li div{
        bottom: -6.75px;
        height: 4.5px;
    }
    
    .header-nav .active a,
    .header-nav li:hover a{
        font-size: 16px;
    }
}
/* 0.75 */

@media screen and (max-width:1360px) {

    .header>a{
        width: 203.06px;
        height: 25.56px;
    }
    
    .header-nav>div{
        height: 13px;
        margin: 0 28.4px;
    }
    
    .header-nav a{
        font-size: 12px;
    }
    
    .header-nav li div{
        bottom: -6.39px;
        height: 4.26px;
    }
    
    .header-nav .active a,
    .header-nav li:hover a{
        font-size: 16px;
    }
}
/* 0.71 */

@media screen and (max-width:1280px) {

    .header>a{
        width: 191.60px;
        height: 24.12px;
    }
    
    .header-nav>div{
        height: 12.73px;
        margin: 0 26.8px;
    }
    
    .header-nav a{
        font-size: 12px;
    }
    
    .header-nav li div{
        bottom: -6px;
        height: 4px;
    }
    
    .header-nav .active a,
    .header-nav li:hover a{
        font-size: 14px;
    }
}
/* 0.67 */

@media screen and (max-width:1000px) {
    .header{
        display: none;
    }
    .header-m{
        display: flex;
    }
    #head{
        height: 44px;
    }
    .inner-input{
        display: none;
    }
}