.topzhanwei{
    width: 100%;
    height: 80px
}
@media (max-width: 1034px){
    .topzhanwei{
        display: none;
    }

}
@media (min-width: 1034px) and (max-width: 1240px){
    .topzhanwei{
        height: 80px;
    }


}
@media screen and (min-width: 1000px){
    /*.nav{*/
        /*width: 1000px;*/
    /*}*/
    .nav .nav_ul{

        display: flex;
        justify-content: center;
    }
    .logo1{
        width: 200px;
        margin-right: 10px;
    }
    .logo1 img{
        width: 100%;
    }
}
@media screen and (min-width: 1240px){
    .nav{
        width: 1140px;
    }
    .nav .nav_ul{
        display: flex;
        justify-content: center;
    }
    .logo1{
        width: 200px;
        margin-right: 10px;
    }
    .logo1 img{
        width: 100%;
    }
}
@media screen and (min-width:1400px){
    .nav{
        width: 1390px;
    }
    .nav .nav_ul{
        display: flex;
        justify-content: center;
    }
    .nav_ul.clearfix{
        display: flex;
        justify-content: space-around;
    }
    .container {
        width: 1400px;
    }
    .logo1{
        width: 240px;
        margin-right: 10px;
    }
    .logo1 img{
        width: 100%;
    }
}
@media screen and (min-width:1920px){
    .nav{
        width: 1400px;
    }
    .nav .nav_ul{
        display: flex;
        justify-content: center;
    }
    .container {
        width: 1400px;
    }
    .nav_ul.clearfix{
        display: flex;
        justify-content: space-around;
    }
}
.center-title{
    margin-top: 40px;
    margin-bottom: 20px;
    text-align: center;
}
.center-title .name{
    font-size: 22px;
    font-family: SourceHanSansCN-Medium, SourceHanSansCN;
    font-weight: 500;
    color: #333333;
    line-height: 32px;
}
.center-title .xian{
    width: 56px;
    height: 4px;
    background: linear-gradient(270deg, #ECECEC 1%, #CDCDCD 100%);
    border-radius: 2px;
    display: inline-block;
}

.nav {
    /*width: 1200px;*/
    height: 80px;
    margin: 0 auto;
}
.nav_item {
    float: left;
    position: relative;
    display: inline-block;
}
.nav_item>a {
    display: block;
    margin: 27px 20px;
    -webkit-transition: all .4s;
    transition: all .4s;
    font-size: 16px;
    font-family: SourceHanSansCN-Medium, SourceHanSansCN;
    font-weight: 500;
    color: #999999;
    line-height: 24px;
}
.nav_item.active{
    background: #333333;
}
.nav_item.active a{
    color: #fff;
}
.menu_open {
    display: none;
}
a:focus, a:hover{
    text-decoration:none !important;
}
@media screen and (min-width:1001px) {
    /*.nav_item.active>a {*/
        /*color: #00a2e7;*/
        /*border-bottom: 1px solid #00a2e7;*/
        /*text-decoration:none;*/
    /*}*/
    /*.nav_item:hover>a {*/
        /*color: #00a2e7;*/
    /*}*/
}

.nav_item_open {
    min-width: 110px;
    height: auto;
    position: absolute;
    left: 0;
    top: 100%;
    z-index: 10;
    box-shadow: 0 4px 15px 0 rgba(0, 12, 49, 0.5);
    background: #fff;
    border-radius: 4px;
    opacity: 0;
    visibility: hidden;
    -webkit-transform: translateY(34px);
    transform: translateY(34px);
    -webkit-transition: all .4s;
    transition: all .4s;
    overflow: hidden;
}
.nav_item:hover .nav_item_open {
    visibility: visible;
    opacity: 1;
    -webkit-transform: translateY(0px);
    transform: translateY(0px);
}
.subopen {
    display: none;
}
.nav_item2 {
    width: 100%;
    line-height: 40px;
}
.nav_item2 a {
    display: block;
    padding: 0 20px;
    font-size: 14px;
    white-space: nowrap;
    text-align: left;
}
/*.nav_item2:hover a {*/
    /*background: #00a2e7;*/
    /*color: #fff;*/
/*}*/
.hcover {
    display: none;
}

@media screen and (max-width:1279px) {
    .nav_item>a {
        font-size: 15px;
    }

}

@media screen and (max-width:1023px) {
    .nav_item>a {
        font-size: 14px;
    }
    .logo1{
        width: 200px;
        margin-right: 10px;
    }
    .logo1 img{
        width: 100%;
    }
}
.breadcrumb{
    margin-top: 100px;
}
.main-banner {
    padding-top: 50px;
    padding-bottom: 44px;
}
.slider{
    margin-top: 100px;
}

@media screen and (max-width:1034px) {
    /*.nav_item.active>a {*/
        /*color: #00a2e7;*/
        /*!*border-bottom: 1px solid #00a2e7;*!*/
    /*}*/
    /*.nav_item:hover>a {*/
        /*color: #00a2e7;*/
    /*}item.active>a {*/
        /*color: #00a2e7;*/
        /*!*border-bottom: 1px solid #00a2e7;*!*/
    /*}*/
    /*.nav_item:hover>a {*/
        /*color: #00a2e7;*/
    /*}*/
    .slider{
        margin-top: 0px;
    }
    .breadcrumb{
        margin-top: 0px;
    }
    .main-banner {
        padding-top: 44px;
        padding-bottom: 44px;
    }
    .menu_open {
        display: block;
        float: right;
        width: 24px;
        height: 20px;
        margin-top: 35px;
        margin-right: 3%;
    }
    .menu_open i {
        height: 2px;
        width: 100%;
        background: #000;
        display: block;
        margin-bottom: 7px;
    }
    .nav {
        width: 50%;
        height: 100%;
        position: fixed;
        top: 0;
        left: -50%;
        z-index: 100;
        overflow: hidden;
        background: #fff;
        color: #333;
    }
    .hcover {
        display: block;
        width: 50%;
        height: 100%;
        background: rgba(0, 0, 0, .6);
        position: fixed;
        right: -50%;
        top: 0;
        z-index: 101;
    }
    .nav_ul {
        margin: 0;
        width: 100%;
        height: 100%;
        position: absolute;
        top: 0;
        left: 0;
        overflow-x: hidden;
        overflow-y: auto;
        /*padding-top: 20px;*/
        text-align: left;
        padding: 0;
    }
    .nav_item {
        float: none;
        margin: 0;
        width: 100%;
    }
    .nav_item:after {
        content: '';
        display: block;
        width: 100%;
        border-bottom: 1px solid rgba(0, 0, 0, .15);
        margin-left: 20px;
    }
    .nav_item>a {
        display: block;
        margin: 10px 0;
        font-size: 14px;
        line-height: 1.8;
        color: inherit;
        padding: 0px 10px 0px 20px;
        white-space: nowrap;
        text-overflow: ellipsis;
        overflow: hidden;
        margin-right: 40px;
    }
    .nav_item i {
        position: absolute;
        z-index: 2;
        top: 0;
        right: 0;
        width: 40px;
        height: 100%;
    }
    .nav_item i:before {
        content: '';
        display: block;
        height: 100%;
        border-left: 1px solid rgba(0, 0, 0, .15);
        position: absolute;
        top: 0;
        left: 0;
    }
    .nav_item i:after {
        content: '';
        display: block;
        width: 7px;
        height: 7px;
        margin-bottom: -5px;
        border: 2px solid rgba(255, 255, 255, .3);
        border-top: 0;
        border-left: 0;
        position: absolute;
        bottom: 50%;
        right: 18px;
        -webkit-transform: rotate(-45deg);
        transform: rotate(-45deg);
    }
    .nav_item_open {
        width: 50%;
        height: 100%;
        margin: 0;
        box-shadow: none;
        background: #333;
        border-radius: 0;
        opacity: 1;
        visibility: visible;
        -webkit-transform: translateY(0px);
        transform: translateY(0px);
        position: fixed;
        left: -50%;
        top: 0;
    }
    .subopen {
        display: block;
    }
    .subopen a {
        display: block;
        overflow: hidden;
        margin: 0;
        padding: 30px 10px 10px 20px;
        white-space: nowrap;
        text-overflow: ellipsis;
        font-size: 14px;
        color: rgba(255, 255, 255, .3);
        background: rgba(0, 0, 0, .1);
        text-indent: 20px;
        position: relative;
    }
    .subopen a:before {
        content: '';
        display: block;
        width: 7px;
        height: 7px;
        position: absolute;
        bottom: 50%;
        left: 22px;
        margin-bottom: -15px;
        -webkit-transform: rotate(-45deg);
        transform: rotate(-45deg);
        border: 2px solid rgba(255, 255, 255, .3);
        border-right: 0;
        border-bottom: 0;
    }
    .nav_item2 {
        position: relative;
    }
    .nav_item2 a {
        display: block;
        overflow: hidden;
        margin: 0;
        line-height: 1.8;
        padding: 10px 10px 10px 20px;
        white-space: nowrap;
        text-overflow: ellipsis;
        color: inherit;
    }
    .nav_item2:after {
        content: '';
        width: 100%;
        position: absolute;
        bottom: 0;
        left: 0;
        display: block;
        border-bottom-width: 1px;
        border-bottom-style: solid;
        border-bottom: 1px solid rgba(0, 0, 0, .15);
        margin-left: 20px;
    }
}

.navbai{
    width: 100%;
    background: #fff;
    z-index: 9999;
    position:fixed;
    top:0;
    left:0;
}
.navzong{
    /*width: 1000px;*/
    height: 80px;
    margin: 0 auto;
}
.menu_open{
    position: absolute;
    top: 15px;
    right: 3%;
    z-index: 2;
    margin-top: 0;
    margin-right: 0;
}
.nav_ul.clearfix{
    line-height: 80px;
}
.nav_item {
    vertical-align: middle;
}
.logo1 img{
    margin-right: 37px;
}




@media (max-width:1034px) {
    .navzong{
        width: 100%;
        height: 0;
    }
    .nav_ul.clearfix{
        line-height: 40px;
    }
    .logo1{
        line-height: 100px;
        width: 90%;
    }
    .logo1 img{
        margin-left: 5%;
        width: 100%;
    }
    .sousuo{
        display: none;
    }
}