.header{
    background: #FFFFFF;
    box-shadow: 0rem 0.03rem 0.06rem 0.01rem rgba(0,0,0,0.16);
}
.header::before{
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 0.86rem;
    box-shadow: 0rem 0.03rem 0.06rem 0.01rem rgba(0, 0, 0, 0.16);
    z-index: 9;
    pointer-events: none;
}
.header .logo{
    filter: brightness(1) invert(0);
}
.header .nav-btn{
    filter: brightness(1) invert(0);
}
.header .nav-menu .nav-item>a{
    color: #222430;
}
.header .nav-menu .nav-item.active>a::before,
.header .nav-menu .nav-item:hover>a::before{
    background: #163681 !important;
    width: 100%;
}
.header .nav-btn:hover{
    filter: brightness(1) invert(0) !important;
}









.banner{
    width: 100%;
    height: 7rem;
    display: flex;
    align-items: center;
    justify-content: center;
}

.class_box{
    width: 100%;
    height: 3.8rem;
    display: flex;
    align-items: center;
    justify-content: center;
    background: url(../img/solution_bg.png) center center no-repeat;
    background-size: cover;
}
.class_box .class_icon{
    width: 0.86rem;
    height: 0.86rem;
    margin: 0 auto 0.48rem;
    background: #163681;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
}
.class_box .class_icon::before{
    content: "";
    position: absolute;
    width: calc(100% + 0.14rem);
    height: calc(100% + 0.14rem);
    border-radius: 50%;
    background: #163681;
    opacity: 0.15;
    top: -0.07rem;
    left: -0.07rem;
    z-index: 0;
}
.class_box .class_icon img{
    width: 0.42rem;
    height: 0.42rem;
    object-fit: contain;
    position: relative;
    z-index: 22;
}
.class_box .class_info{
    text-align: center;
    font-family: Sans-Bold;
    font-weight: bold;
    font-size: 0.34rem;
    color: #163681;
}







.solution_class{
    width: 100%;
    text-align: center;
    font-family: Sans-Bold;
    font-weight: bold;
    font-size: 0.3rem;
    color: #222430;
    margin-bottom: 0.58rem;
}


.body{
    padding: 0 0 1rem;
    box-sizing: border-box;
}
.body .solution_class{
    margin-top: 0.94rem;
}
.solution_list .solution_item{
    display: flex;
    margin-top: 0.75rem;
}
.solution_list .solution_item:first-child{
    margin-top: 0;
}
.solution_list .solution_item:nth-child(2n){
    flex-direction: row-reverse;
}
.solution_list:nth-child(4n) .solution_item{
    flex-direction: row-reverse;
}
.solution_list:nth-child(4n) .solution_item:nth-child(2n){
    flex-direction: row;
}


.solution_list .solution_item .solution_img,
.solution_list .solution_item .solution_txt{
    width: 50%;
    height: auto;
    background: #F6F8FB;
    overflow: hidden;
}
.solution_list .solution_item .solution_txt{
    padding: 0.7rem;
    box-sizing: border-box;
}
.solution_list .solution_item .solution_title{
    font-family: Sans-Bold;
    font-weight: bold;
    font-size: 0.24rem;
    color: #222430;
    margin-bottom: 0.3rem;
}
.solution_list .solution_item .solution_info{
    padding-left: 0.4rem;
}
.solution_list .solution_item .solution_info p{
    position: relative;
    font-family: Sans-Medium;
    font-weight: 500;
    font-size: 0.18rem;
    color: #929292;
    line-height: 1.5;
    margin-bottom: 0.2rem;
}
.solution_list .solution_item .solution_info p span{
    width: 100%;
    color: #222430;
    display: block;
    font-family: Sans-Medium;
    font-weight: 500;
    font-size: 0.18rem;
    line-height: 1.5;
}
.solution_list .solution_item .solution_info p::before{
    content: "";
    position: absolute;
    top: 0.03rem;
    left: -0.4rem;
    width: 0.22rem;
    height: 0.22rem;
    background: url(../img/solution.png) center center no-repeat;
    background-size: contain;
    border-radius: 50%;
}






.body2{
    padding: 0 0 1rem;
    box-sizing: border-box;
}
.body2 .solution_class{
    margin-bottom: 0.81rem;
}
.solution_box{
    position: relative;
    margin-top: 0.6rem;
    height: 4.11rem;
    background: #F6F8FB;
    border-radius: 0.2rem;
    display: flex;
}
.solution_box .solution_key{
    padding: 0.13rem 0.45rem;
    box-sizing: border-box;
    min-width: 3.58rem;
    height: auto;
    background: #163681;
    border-radius: 0.26rem;
    font-family: Sans-Bold;
    font-weight: bold;
    font-size: 0.18rem;
    color: #FFFFFF;
    position: absolute;
    white-space: nowrap;
    top: -0.28rem;
    left: 50%;
    transform: translateX(-50%);
}
.solution_box .solution_li{
    position: relative;
    width: 33.33%;
}
.solution_box .solution_li::before{
    content: "";
    position: absolute;
    width: 0.01rem;
    height: calc(100% - 1.31rem);
    background: #D9D9D9;
    top: 1rem;
    right: 0;
}
.solution_box .solution_li:last-child:before{
    display: none;
}
.solution_box .solution_li .solution_num{
    font-family: Poppins-Bold;
    font-weight: bold;
    font-size: 3rem;
    color: #FFFFFF;
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    z-index: 0;
}
.solution_box .solution_li .solution_icon{
    width: 0.56rem;
    height: 0.56rem;
    margin: 0.96rem auto 0.3rem;
    position: relative;
}
.solution_box .solution_li .solution_name{
    text-align: center;
    margin-bottom: 0.48rem;
    font-family: Sans-Bold;
    font-weight: bold;
    font-size: 0.19rem;
    color: #222430;
    position: relative;
}
.solution_box .solution_li .solution_text{
    max-width: 4.46rem;
    margin: 0 auto;
    text-align: center;
    font-family: Sans-Medium;
    font-weight: 500;
    font-size: 0.18rem;
    color: #222430;
    line-height: 1.444;
    position: relative;
}




.systems{
    width: 100%;
    padding: 1.27rem 0.59rem 0.4rem 0.44rem;
    box-sizing: border-box;
    display: flex;
    justify-content: space-between;
    column-gap: 0.2rem;
}
.systems .systems_item{
    width: calc(25% - 0.15rem);
    background: #ffffff;
    border-radius: 0.2rem;
    position: relative;
    padding: 1.32rem 0.34rem 0.4rem;
    box-sizing: border-box;
}
.systems .systems_item .systems_icon{
    width: 1.08rem;
    height: 1.08rem;
    margin: 0 auto;
    position: absolute;
    top: -0.37rem;
    left: 50%;
    transform: translateX(-50%);
}
.systems .systems_item .systems_icon img{
    max-width: 100%;
    max-height: 100%;
    object-fit: contain;
}
.systems .systems_item .systems_info{
    width: 100%;
    text-align: center;
    font-family: Sans-Bold;
    font-weight: bold;
    font-size: 0.2rem;
    color: #222430;
}















.systems2{
    padding: 0;
    margin-top: 1.17rem;
}
.systems2 .systems_item{
    background: #F6F8FB;
    padding: 1rem 0.4rem 0.3rem;
}
.systems2 .systems_txt{
    margin-top: 0.32rem;
    font-family: Sans-Medium;
    text-align: center;
    font-weight: 500;
    font-size: 0.18rem;
    color: #222430;
    line-height: 1.5;
}