body{min-height:100vh;display:flex;flex-direction:column;width:100vw;;}
.Main{flex:1;}
.ib{display:inline-block;}
.db{display:block;}
.w1{width:10%;}.w2{width:20%;}.w3{width:30%;}.w4{width:40%;}.w5{width:50%;}.w6{width:60%;}.w7{width:70%;}.w8{width:80%;}.w9{width:90%;}.w10{width:100%;}/*宽度百分比*/
.h10{height:100%;}
.nw{width:1200px;margin:0px auto;}/*normal width默认宽度原数值：width:1200px*/
.mw{width:100%;}/*max宽度，最大宽度*/
.p0{padding:0px;}
.pl-10{padding-left:10px;}
.pr-10{padding-right:10px;}
.plr-5{padding:0 5px;}
.plr-15{padding:0 15px;}
.m0{margin:0;}
.mlr-5{margin:0 5px;}
.mlr-10{margin:0 10px;}
.pm0{padding:0;margin:0;}
.mr-5{margin-right:5px;}
.mr-10{margin-right:10px;}
.ml-5{margin-left:5px;}
.f_r{float:right;}
.f_l{float:left;}
.t-c{text-align:center;}
.bg-dark-blue{background-color:rgb(30, 80, 174);color:#fff;}
a{text-decoration: none; color:black;}
.top{background: linear-gradient(rgba(255, 255, 255, 0.3), rgba(255, 255, 255, 0.5)), url(../data/img/hd_bg.png) center/cover no-repeat;}
.footer{background: linear-gradient(rgba(255, 255, 255, 0.3), rgba(255, 255, 255, 0.5)), url(../data/img/footerBG.jpg) center/cover no-repeat;}
.current-menu-item{background:#fff;}
#NavLinks .current-menu-item a.nav-link{color:#1e50ae;}
.t-r{text-align:right;}
.footer{align-self: end;}
.bg-light-blue{background:#398DDE;}
.cl:after {content: "";display: table;clear: both;}
.my-m-auto{margin:0 auto;}