.header {
    width: 100%;
    height: 1.6rem;
    padding-bottom: 0.7rem;
    background: url(../img/header_bg.png) no-repeat center top !important;
    background-size: auto 1.4rem !important;
    position: fixed;
    top: 0;
    z-index: 99;
}
.header::before{
    content: "";
    position: absolute;
    width: 100%;
    height: 0.9rem;
    background: #ffffff;
    left: 0;
    top: 0;
}
.header .main{
    position: relative;
}
.header .head_nav{
    width: 100%;
    height: 0.9rem;
    display: flex;
    justify-content: center;
    column-gap: 0.9rem;
}
.header .head_nav .head_item{
    width: auto;
    height: 0.9rem;
    display: flex;
    justify-content: center;
    position: relative;
}
.header .head_nav .head_item>a{
    width: fit-content;
    height: 100%;
    padding-top: 0.38rem;
    font-family: Sans-Medium;
    font-weight: 500;
    font-size: 0.18rem;
    color: #343434;
    position: relative;
}
.header .head_nav .head_item>a::before{
    content: "";
    position: absolute;
    width: 0;
    height: 0.04rem;
    background: #F5811F;
    left: 50%;
    bottom: 0.15rem;
    transform: translateX(-50%);
    transition: all 0.3s;
}
.header .head_nav .head_item.level1_active>a::before,
.header .head_nav .head_item>a:hover::before{
    width: 100%;
}
.header .head_nav .head_item.level1_active>a,
.header .head_nav .head_item>a:hover{
    color: #F5811F;
}
.header .head_nav .head_item.logo{
    width: 1.16rem;
    height: 0.86rem;
    margin: 0.19rem 0.5rem 0;
    display: flex;
    justify-content: center;
    align-items: center;
}
.header .head_nav .head_item.logo>a::before{display: none;}
.header .head_nav .head_item.logo>a{padding: 0;}
.header .head_nav .head_item.logo>a img{object-fit: contain;}
.header .head_box{
    position: absolute;
    display: flex;
    align-items: center;
    top: 0.32rem;
    right: -0.9rem;
    column-gap: 0.18rem;
} 
.header .head_box>a{
    width: 0.36rem;
    height: 0.36rem;
    background: #F6F6F6;
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    font-family: Sans-SemiBold;
    font-weight: 600;
    font-size: 0.16rem;
    color: #343434;
}
.header .head_box>a img{
    width: 0.36rem;
    height: 0.36rem;
    object-fit: contain;
}
.header .head_box>a:hover{
    background: #F5811F;
    color: #fff;
}
.header .head_box>a:hover img{
    filter: brightness(0) invert(1);
}





.header .head_nav .head_item .head_class{
    position: absolute;
    top: 100%;
    left: 50%;
    transform: translateX(-50%);
    width: 2.54rem;
    height: auto;
    background: #fff;
    display: none;
    box-shadow: 0rem 0rem 0.1rem 0.01rem rgba(0,0,0,0.13);
}
.header .head_nav .head_item .head_list{
    padding: 0.25rem 0.29rem 0.26rem 0.27rem;
    box-sizing: border-box;
    border-bottom: 0.01rem solid #E1E1E1;
} 
.header .head_nav .head_item .head_list .class_title{
    display: flex;
    justify-content: space-between;
    align-items: center;
}
.header .head_nav .head_item .head_list .class_title a{
    width: fit-content;
    height: auto;
    font-family: Sans-Medium;
    font-weight: 500;
    font-size: 0.18rem;
    color: #000000;
}
.header .head_nav .head_item .head_list .class_title i{
    width: 0.11rem;
    height: 0.07rem;
    background: url(../img/arrow_down.png) no-repeat center center;
    filter: brightness(0);
    transform: rotate(180deg);
    transition: all 0.3s;
    cursor: pointer;
}
.header .head_nav .head_item .head_list .class_title.act a,
.header .head_nav .head_item .head_list .class_title:hover a{
    color: #F5811F;
}
.header .head_nav .head_item .head_list .class_title.act i,
.header .head_nav .head_item .head_list .class_title:hover i{
    filter: brightness(1) invert(0);
    transform: rotate(0deg);
}
.header .head_nav .head_item .head_list .head_ul{
    padding: 0.04rem 0 0.1rem;
    box-sizing: border-box;
    display: none;
}
.header .head_nav .head_item .head_list .head_ul a{
    width: fit-content;
    height: auto;
    font-family: Sans-Medium;
    font-weight: 500;
    font-size: 0.16rem;
    color: #676767;
    margin-top: 0.24rem;
}
.header .head_nav .head_item .head_list .head_ul a:hover{
    font-family: Sans-Bold;
    color: #F5811F;
    font-weight: bold;
}


.header .search_box{
    position: absolute;
    top: 100%;
    right: -0.35rem;
    width: 3.6rem;
    height: 0.71rem;
    background: #F5F5F5;
    display: none;
    padding: 0.18rem 0.4rem 0.18rem 0.11rem;
    box-sizing: border-box;
    box-shadow: 0rem 0.05rem 0.1rem 0.01rem rgba(0,0,0,0.13);
}
.header .search_box form{
    width: 100%;
    height: 0.36rem;
    overflow: hidden;
    display: flex;
}
.header .search_box form input{
    width: 2.23rem;
    height: 0.36rem;
    background: #fff;
    padding: 0 0.1rem;
    box-sizing: border-box;
    border: 0.01rem solid #D2D2D2;
    font-family: Sans-Regular;
    font-weight: 400;
    font-size: 0.14rem;
    color: #000000;
}
.header .search_box form input::placeholder{
    color: #AAA8A9;
}
.header .search_box form button{
    width: 0.85rem;
    height: 0.36rem;
    border: none;
    background: #F5811F;
    font-family: Sans-Regular;
    font-weight: 400;
    font-size: 0.15rem;
    color: #FFFFFF;
    cursor: pointer;
    text-align: center;
}
.header .search_close{
    width: 0.16rem;
    height: 0.16rem;
    position: absolute;
    top: 50%;
    right: 0.14rem;
    transform: translateY(-50%);
}













.header_m{
    display: none;
}
@media screen and (max-width: 1043px) {
    .header{
        height: 1rem;
        background-size: auto 100% !important;
    }
    .header::before,
    .header .head_nav,
    .header .head_nav .head_item{
        height: 0.65rem;
    }
    .header .head_nav{
         column-gap: 0.3rem;
    }
    .header .head_nav .head_item>a{
        font-size: 16px;
        padding-top: 0.26rem;
    }
    .header .head_nav .head_item.act>a::before, 
    .header .head_nav .head_item>a:hover::before{
        height: 2px;
    }
    .header .head_nav .head_item .head_class{
        width: 1.8rem;
    }
    .header .head_nav .head_item .head_list{
        padding: 0.13rem 0.15rem 0.13rem 0.13rem;
    }
    .header .head_nav .head_item .head_list .class_title a{
        font-size: 16px;
    }
    .header .head_nav .head_item .head_list .head_ul a{
        font-size: 14px;
        margin-top: 0.12rem;
    }


    .header .head_nav .head_item.logo{
        width: 1rem;
        height: 0.6rem;
        margin: 0.2rem 0.2rem 0;
    }
    .header .head_box{
        right: 0;
        column-gap: 0.1rem;
        top: 0.2rem;
    }
    .header .head_box>a{
        width: 0.26rem;
        height: 0.26rem;
        object-fit: contain;
        font-size: 16px;
    }
    .header .head_box img{
        width: 0.26rem !important;
        height: 0.26rem !important;
    }

    .header .search_box{
        height: auto;
    }
    .header .search_box form,
    .header .search_box form input,
    .header .search_box form button{
        height: 0.3rem;
        font-size: 14px;
    }
}
/* 手机版 */
@media screen and (max-width: 769px) {
    .header{display: none;}
    body{padding-top: 73px;}

    .header_m{display: block!important;position: fixed;top: 0;left: 0;width: 100%;background-color: #fff;z-index: 998;border-bottom:1px solid rgba(0,0,0,0.3);}
    .header_m .con{display: flex;align-items: center;justify-content:space-between;padding: 16px 20px;}
    .header_m .con .logo{display: block;width: auto;height: 40px;}
    .header_m .con .rig{display: flex;align-items: center;}
    .header_m .con .rig .ser_m{width: auto;height: auto;display: flex;column-gap: 8px;font-size: 18px;margin-left: 18px;}
    .header_m .con .rig .ser_m img{width: 20px;height: 20px;object-fit: contain;}

    .navbar-default{position: static!important;height:auto!important;}
    .navbar-toggle {position: relative!important;float: right;padding:0;margin-left:16px; background-color: transparent;background-image: none;border:0;border-radius: 0}
    .navbar-toggle:focus { outline: 0 }
    .navbar-toggle .icon-bar { display: block; width: 22px; height: 2px; border-radius: 1px }
    .navbar-toggle .icon-bar + .icon-bar { margin-top: 4px }
    .navbar-default .navbar-toggle .icon-bar { background-color: #606060 }
    .navbar-toggle .icon-bar { position: relative }
    .navbar-toggle .icon-bar + .icon-bar { margin-top: 6px }
    .navbar-toggle .icon-bar:nth-child(2) { -moz-transition: background .3s ease 0s; -o-transition: background .3s ease 0s; -webkit-transition: background .3s ease; -webkit-transition-delay: 0s; transition: background .3s ease 0s; background: transparent }
    .transform-fallback-fix .navbar-toggle .icon-bar:nth-child(2) { background: #606060 }
    .navbar-toggle .icon-bar:nth-child(1), .navbar-toggle .icon-bar:nth-child(3) { -moz-transition: top .3s ease, -moz-transform .3s ease .4s; -o-transition: top .3s ease, -o-transform .3s ease .4s; -webkit-transition: top .3s ease, -webkit-transform .3s ease; -webkit-transition-delay: 0s, .4s; transition: top .3s ease, transform .3s ease .4s }
    .navbar-toggle .icon-bar:nth-child(1) { top: 8px; -moz-transform: rotate(45deg); -ms-transform: rotate(45deg); -webkit-transform: rotate(45deg); transform: rotate(45deg) }
    .transform-fallback-fix .navbar-toggle .icon-bar:nth-child(1) { top: 0 }
    .navbar-toggle .icon-bar:nth-child(3) { top: -8px; -moz-transform: rotate(-45deg); -ms-transform: rotate(-45deg); -webkit-transform: rotate(-45deg); transform: rotate(-45deg) }
    .transform-fallback-fix .navbar-toggle .icon-bar:nth-child(3) { top: 0 }
    .navbar-toggle.collapsed .icon-bar:nth-child(2) { -moz-transition: background .3s ease .4s; -o-transition: background .3s ease .4s; -webkit-transition: background .3s ease; -webkit-transition-delay: .4s; transition: background .3s ease .4s; background-color: #606060 }
    .navbar-toggle.collapsed .icon-bar:nth-child(1), .navbar-toggle.collapsed .icon-bar:nth-child(3) { top: 0; -moz-transform: rotate(0deg); -ms-transform: rotate(0deg); -webkit-transform: rotate(0deg); transform: rotate(0deg); -moz-transform-origin: 50% 50%; -ms-transform-origin: 50% 50%; -webkit-transform-origin: 50% 50%; transform-origin: 50% 50%; -moz-transition: top .3s ease .4s, -moz-transform .3s ease; -o-transition: top .3s ease .4s, -o-transform .3s ease; -webkit-transition: top .3s ease, -webkit-transform .3s ease; -webkit-transition-delay: .4s, 0s; transition: top .3s ease .4s, transform .3s ease }


    .header_m .m_means{position: absolute;top: 100%;left: 0;width: 100%;height: calc(100vh - 50px);overflow:hidden;pointer-events: none;font-family: PingFang SC, Arial, Microsoft YaHei, -apple-system, BlinkMacSystemFont, Segoe UI, Hiragino Sans GB, Helvetica Neue, Helvetica, sans-serif, Apple Color Emoji, Segoe UI Emoji, Segoe UI Symbol!important;}
    .header_m .m_means .mean1{position: absolute;top: 0;left: 0;width: 100%;height: 100%;background-color: #fff;padding: 20px;transform:translateX(105%);transition:all 0.5s;pointer-events: all;overflow:auto;}
    .header_m .m_means .mean1.on{transform: translateX(0);overflow-x:hidden;}
    .header_m .m_means .mean1 .m_nav1 .li1{border-bottom: 1px solid #DFDFDF;padding: 15px 0 0 0;line-height: 26px;padding-right:0;position:relative;}
    .header_m .m_means .mean1 .m_nav1 .li1 .add{position: absolute;top:5px;left:auto; right:-20px; width: 50px;height: 50px;background: url(../img/fm_add.svg)no-repeat center;background-size: 14px 14px;transition:all 0.5s;}
    .header_m .m_means .mean1 .m_nav1 .li1.on .add{transform:rotate(45deg);}
    .header_m .m_means .mean1 .m_nav1 .li1>a{padding-bottom: 15px; color:#333;font-size:18px;font-weight: bold;font-family: PingFang SC, Arial, Microsoft YaHei, -apple-system, BlinkMacSystemFont, Segoe UI, Hiragino Sans GB, Helvetica Neue, Helvetica, sans-serif, Apple Color Emoji, Segoe UI Emoji, Segoe UI Symbol!important;}
    .header_m .m_means .mean1 .m_nav2{display:none;padding: 15px 0;border-top: 1px solid rgba(96,96,96,0.2);}
    .header_m .m_means .mean1 .m_nav2 .li2>a{color:#333;line-height:22px;font-size:16px;display:inline-block;font-weight: 500;}

    .header_m .m_means .mean1 .m_nav2 .li2{position: relative;border-bottom: 1px solid rgba(96,96,96,0.2);padding-bottom: 10px;margin-bottom: 15px;}
    .header_m .m_means .mean1 .m_nav2 .li2:last-child{border-bottom: none;padding-bottom: 0;margin-bottom: 0;}


    .header_m .m_means .mean1 .m_nav2 .li2{position: relative;border-bottom: 1px solid rgba(96,96,96,0.2);padding-bottom: 15px;margin-bottom: 20px;}
    .header_m .m_means .mean1 .m_nav2 .li2:last-child{border-bottom: none;padding-bottom: 0;margin-bottom: 0;}
    .header_m .m_means .mean1 .m_nav2 .li2 .jt{position:absolute;right:0;top:12px;width:13px;height:13px;transform:translateY(-50%);transition:all 0.5s;}
    .header_m .m_means .mean1 .m_nav2 .li2.on .jt{transform:translateY(-50%) rotate(90deg);}
    .header_m .m_means .mean1 .m_nav2 .li2 .jt img{width: 100%;height: 100%;}
    .header_m .m_means .mean1 .m_nav2 .m_nav3{padding-left: 5px;display:none;padding:5px 10px 0 20px}
    .header_m .m_means .mean1 .m_nav2 .m_nav3>a{color:#606060;line-height:22px;font-size:16px;padding-bottom: 10px;margin-bottom:10px;font-weight: 400!important;}
    .header_m .m_means .mean1 .m_nav2 .m_nav3 li a{color:#606060;font-size: 16px;line-height: 34px;font-weight: 400;}

}