body{
    /*background: #f1f1f1;*/
}
/*header*/
header {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    /*bottom: 0;*/
    z-index: 99;
    /*padding: 10px 0;*/
    font-size: 18px;
    /*margin: 0 auto;*/
    color: #fff;
}


#logo {
    position: relative;
    margin-left: 50px;
    width: 250px;
    height: 85px;
    display: flex;
    align-items: center;
}
#logo img{
    width: 100%;
}

.nav1 {
    padding-right: 50px;
    /*height: 85px;*/
}

.nav1>li {
    /*position: relative;*/
    float: left;
    margin-left: 30px;
}

.nav1>li>a{
    position: relative;
    display: block;
    /*width: 60px;*/
    padding: 0 10px;
    /*background: darkgoldenrod;*/
    /*overflow: hidden;*/
    line-height: 85px;
    -webkit-transition: all .5s;
    -moz-transition: all .5s ;
    -ms-transition: all .5s ;
    -o-transition: all .5s ;
    transition: all .5s ;
}
.nav1>li>a::after{
    content: '';
    position: absolute;
    left: 0;
    /*bottom: -2px;*/
    /*bottom: 10px;*/
    bottom: 0;
    width: 100%;
    height: 2px;
    /*background: #fcd20d;*/
    -webkit-transform: scaleX(.8);
    -moz-transform: scaleX(.8);
    -ms-transform: scaleX(.8);
    -o-transform: scaleX(.8);
    transform: scaleX(.8);
    -webkit-transition: all .5s;
    -moz-transition: all .5s ;
    -ms-transition: all .5s ;
    -o-transition: all .5s ;
    transition: all .5s ;
}


/*.nav1 li a:hover:not(.active)::after*/
.nav1>li:hover a:not(.active)::after{
    background: #fcd20d;
    -webkit-transform: translateY(-10px) scaleX(.8);
    -moz-transform: translateY(-10px) scaleX(.8);
    -ms-transform: translateY(-10px) scaleX(.8);
    -o-transform: translateY(-10px) scaleX(.8);
    transform: translateY(-10px) scaleX(.8);
}
.nav1 .active{
    color: #fcd20d;
}
.nav1 .active::after{
    content: '';
    position: absolute;
    left: 0;
    /*bottom: 0;*/
    bottom: 10px;
    width: 100%;
    height: 2px;
    background: #fcd20d;
}

.nav1>li{
    /*position: relative;*/
}
.nav1>li>a{
}

.nav1>li:hover .nav1_in{
    /*display: block;*/
}
.nav1_in_bg{
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    /*width: 200px;*/
    /*height: 100px;*/
    background: rgba(0, 0, 0, 0.5);
    /*background: yellow;*/
}

.nav1_in{
    position: absolute;
    /*top: 100%;*/
    /*left: 0;*/
    /*right: 0;*/
    text-align: center;
    /*height: 200px;*/
    /*display: none;*/
    /*display: flex;*/
    /*justify-content: center;*/
    /*background: rgba(0, 0, 0, 0.3);*/
}




.nav1_in li{
    /*float: left;*/
}

.nav1_in li a{
    display: inline-block;
    margin-top: 10px;
    /*margin: 10px;*/
    padding: 5px 5px;
    border-radius: 5px;
    /*color: #090909;*/
    color: #fff;
    font-size: 16px;
    /*background: #fff;*/
    -webkit-transition: all .5s;
    -moz-transition: all .5s ;
    -ms-transition: all .5s ;
    -o-transition: all .5s ;
    transition: all .5s ;
}
.nav1_in>li:first-child{
    margin-top: 20px;
}
.nav1_in>li:last-child{
    margin-bottom: 30px;
}
.nav1_in li a:hover{
    color: #fcd20d;
}


/*banner*/

.banner {
    position: relative;
    width: 1200px;
    height: 550px;
}

.banner_in {
    width: 100%;
    height: 550px;
}


.banner a {
    display: block;
}

.banner_in ul li {
    position: absolute;
}

.banner_in ul li a {
    display: block;
    /*width: 100%;*/
    height: 550px;
    cursor: auto;
}

.banner_in ul li a > img {
    width: 100%;
    height: 100%;
    /*vertical-align: middle;*/
}

/*section*/
.section{
    margin-top: 100px;
}

/*nr_text*/
.nr_text{
    text-align: center;
}
.nr_text_in>h4{
    letter-spacing: 2px;
    font-size: 24px;
    font-weight: 400;
    font-family: "PingFang SC","Source Han Sans CN","Microsoft YaHei","STSong","SimSun",Arial,sans-serif;
    color: #333;
}
.nr_text_in_text{
    margin-top: 30px;
    font-size: 14px;
    line-height: 200%;
    color: #999;
}
.nr_text_in_text i{
    display: block;
    margin: 30px auto 0 auto;
    width: 40px;
    border-bottom: 5px solid #fcd20d;
}

/*nr1*/
.nr1{
    text-align: center;
}
.nr1_in ul{
    display: inline-block;
    width: 840px;
    margin-top: -20px;
    margin-right: -30px;
    margin-left: -30px;
    padding-left: 30px;
    vertical-align: middle;
}
.nr1_in ul li{
    float: left;
    padding: 20px 0;
    margin-right: 30px;
    width: 180px;
    /*height: 240px;*/
}
.nr1_in ul li img{
    width: 100%;
    height: 180px;
    border-radius: 50%;
    /*overflow: hidden;*/
    vertical-align: middle;
    transition: all .5s;
}
.nr1_in ul li img:hover{
    transform: scale(1.05);
}
.nr1_in ul li p{
    font-size: 18px;
    line-height: 65px;
    color: #333;
}

/*nr2*/
.nr2_in{
    height: 300px;
    background: url("../images/serve-5.jpg") no-repeat center center;
    background-size: contain;
}

/*nr3*/
.nr3_in{
    height: 450px;
    background: url("../images/serve-6.jpg") no-repeat center center;
    background-size: contain;
}


/*nr5*/
.nr5{
    height: 400px;
    background: url("../../images/nr5_in_bgimg.jpg") center center no-repeat;
    background-size: cover;
}

/*back*/
#back{
    position: fixed;
    top:60%;
    right: 3%;
    /*border-left: 30px solid transparent;*/
    /*border-right: 30px solid transparent;*/
    /*border-bottom:35px solid rgba(198, 109, 253, 0.3);*/
    /*border-bottom:35px solid #5ad4eb;*/
    z-index: 999;
    width: 50px;
    height: 50px;
    border-radius: 5px;
    opacity: .5;
    display: none;
    cursor: pointer;
    transition: all .5s;
    /*background: #707D90;*/
    background: #ffffff;
    box-shadow: 0 0 5px rgba(0, 0, 0, .5);
}
#back:before{
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    -webkit-transform: translate(-50%, -50%);
    -moz-transform: translate(-50%, -50%);
    -ms-transform: translate(-50%, -50%);
    -o-transform: translate(-50%, -50%);
    transform: translate(-50%, -50%);
    border-left: 15px solid transparent;
    border-right: 15px solid transparent;
    border-bottom: 15px solid #fcd20d;
}
#back:after{
    content: '';
    position: absolute;
    top: 60%;
    left: 50%;
    -webkit-transform: translate(-50%, -50%);
    -moz-transform: translate(-50%, -50%);
    -ms-transform: translate(-50%, -50%);
    -o-transform: translate(-50%, -50%);
    transform: translate(-50%, -50%);
    border-left: 15px solid transparent;
    border-right: 15px solid transparent;
    border-bottom: 15px solid #ffffff;
}
#back:hover{
    /*border-left: 30px solid transparent;*/
    /*border-right: 30px solid transparent;*/
    /*border-bottom:35px solid rgba(198, 109, 253, 0.6);*/
    /*border-bottom:35px solid #5ad4eb;*/
    opacity: 1;
}

/*footer*/
footer{
    color: #ffffff;
    background: #495051;
}
.footer{
    width: 1050px;
    min-width: 1150px;
}
.footer_t{
    padding-top: 50px;
    /*border-bottom: 1px solid #747576;*/
    font-size: 15px;
    line-height: 150%;
}
.footer_t_t{
    color: #fcd20d;
    font-size: 16px;
}
.footer_t>ul>li{
    float: left;
    width: 175px;
}
.footer_t>ul>li>div>ul{
    margin-top: 20px;
}
.footer_t>ul>li>div>ul>li{
    margin-top: 10px;
}

.footer_t_img{
    margin-top: 20px;
    padding-bottom: 20px;
    border-bottom: 1px solid #747576;
}
.footer_t_img_in{
    position: relative;
}
.footer_t_img_bottomlogo{
    position: absolute;
    left: 0;
    bottom: 0;
    width: 300px;
    height: 65px;
    /*display: flex;*/
    /*align-items: center;*/
}
.footer_t_img_bottomlogo img{
    width: 100%;
}
.footer_t_img_bottomer{
    width: 100px;
    height: 100px;
    /*background: red;*/
}
.footer_t_img_bottomer img{
    width: 100%;
}

.footer_b{
    padding: 25px 0;
    color: rgba(255, 255, 255, 0.7);
    font-size: 13px;
    /*line-height: 150%;*/
}

#designed,#ba {
    position: relative;
    margin-left: 10px;
    padding-left: 15px;
    /*font-size: 14px;*/
    /*line-height: 150%;*/
}

#ba a{
    color: rgba(255, 255, 255, 0.7);
}

#ba:hover a{
    color: #fcd20d;
}

#designed:after, #ba:after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    height: 100%;
    border-left: 1px solid #ccc;
    transform: scaleY(.9);
}