main > ul:nth-child(2){
    width: 1200px;
    height: 80px;
    /* background-color: darkorange; */
    margin: 0 auto;
}
main > ul:nth-child(2) > li{
    width: 260px;
    height: 80px;
    background-color: rgb(174, 255, 201);
    border: 2px solid rgb(61, 61, 61);/*实心边框颜色*/
    margin: 0 auto;
}
main > ul:nth-child(2) > li > p{
    font-size:48px;/*字体大小*/
    color: rgb(78, 121, 0);
    line-height:75px;/*字体垂直居中*/
    text-align:center;/*字体水平居中*/
}
main > ul:nth-child(3){
    width: 1200px;
    height: 2376px;
    /* background-color: darkorange; */
    margin: 80px auto 0;
}
main > ul:nth-child(3) > li{
    width: 1200px;
    height: 262px;
    /* background-color: rgb(255, 248, 248); */
    margin-bottom: 40px;
}
main > ul:nth-child(3) > li > a{
    position: relative;/*相对定位*/
    display: flex;/*弹性盒模型*/
}
main > ul:nth-child(3) > li > a > i.iconfont{
    display: inline-block;/*变元素*/
    width: 250px;
    background-color: rgb(180, 180, 180);
    margin-left: 40px;
    font-size:200px;/*字体大小*/
    color: rgb(246, 246, 246);
    line-height:260px;/*字体垂直居中*/
    text-align:center;/*字体水平居中*/
    /*border-radius: 5%;/*圆角*/
}
main > ul:nth-child(3) > li > a > p{
    margin: 0 60px 0 115px;
    line-height:260px;/*字体垂直居中*/
    font-size:50px;/*字体大小*/
    color: rgb(112, 0, 204);
}
main > ul:nth-child(3) > li > a > section{
    width: 320px;
    height: 120px;
    border-top: 2px solid rgb(0, 116, 194);/*实心边框*/
    border-right: 2px solid rgb(0, 116, 194);/*实心边框*/
    /* background-color: mediumslateblue; */
    margin: 140px 0 0 169px;
}
main > ul:nth-child(3) > li:first-of-type > a > section{
    margin-left: 55px;
}
main > ul:nth-child(3) > li:nth-child(2) > a > section{
    border-left: 2px solid rgb(0, 116, 194);/*实心边框*/
    border-right: 0px solid rgb(0, 116, 194);/*实心边框*/
}
main > ul:nth-child(3) > li:nth-child(2):hover > a > section{
    border-left: 2px solid rgb(77, 77, 77);/*实心边框*/
    border-right: 0px solid rgb(0, 116, 194);/*实心边框*/
}
main > ul:nth-child(3) > li:nth-child(3) > a > section{
    margin-left: 55px;
}
main > ul:nth-child(3) > li:nth-child(4) > a > section{
    border-left: 2px solid rgb(0, 116, 194);/*实心边框*/
    border-right: 0px solid rgb(0, 116, 194);/*实心边框*/
}
main > ul:nth-child(3) > li:nth-child(4):hover > a > section{
    border-left: 2px solid rgb(77, 77, 77);/*实心边框*/
    border-right: 0px solid rgb(0, 116, 194);/*实心边框*/
}
main > ul:nth-child(3) > li:nth-child(5) > a > section{
    margin-left: 55px;
}
main > ul:nth-child(3) > li:nth-child(6) > a > section{
    border-left: 2px solid rgb(0, 116, 194);/*实心边框*/
    border-right: 0px solid rgb(0, 116, 194);/*实心边框*/
}
main > ul:nth-child(3) > li:nth-child(6):hover > a > section{
    border-left: 2px solid rgb(77, 77, 77);/*实心边框*/
    border-right: 0px solid rgb(0, 116, 194);/*实心边框*/
}
main > ul:nth-child(3) > li:nth-child(7)> a > section{
    margin-left: 55px;
}
main > ul:nth-child(3) > li:nth-child(8) > a > section{
    border-left: 2px solid rgb(0, 116, 194);/*实心边框*/
    border-right: 0px solid rgb(0, 116, 194);/*实心边框*/
}
main > ul:nth-child(3) > li:nth-child(8):hover > a > section{
    border-left: 2px solid rgb(77, 77, 77);/*实心边框*/
    border-right: 0px solid rgb(0, 116, 194);/*实心边框*/
}
main > ul:nth-child(3) > li > a > i.iconfont:last-of-type{
    position: absolute;/* 绝对定位 */
    top: 260px;
    left: 986px;
    width: 30px;
    height: 15px;
    background-color: transparent;
    font-size:30px;/*字体大小*/
    color: rgb(0, 116, 194);
    line-height:15px;/*字体垂直居中*/
    text-align:center;/*字体水平居中*/
}
main > ul:nth-child(3) > li:nth-child(2) > a > i.iconfont:last-of-type{
    left: 115px;
}
main > ul:nth-child(3) > li:nth-child(4) > a > i.iconfont:last-of-type{
    left: 115px;
}
main > ul:nth-child(3) > li:nth-child(6) > a > i.iconfont:last-of-type{
    left: 115px;
}
main > ul:nth-child(3) > li:nth-child(8) > a > i.iconfont:last-of-type{
    left: 115px;
}
main > ul:nth-child(3) > li:hover > a > p{
    color: rgb(121, 121, 121);
}
main > ul:nth-child(3) > li > a > i{
    position: relative;/*相对定位*/
    top: 5px;
    transition: 0.1s linear;
}
main > ul:nth-child(3) > li:hover > a > i{
    top: 0;
    color: rgb(77, 77, 77);
    box-shadow:0px 15px 10px 5px rgb(187, 187, 187);/*阴影*/
}
main > ul:nth-child(3) > li:hover > a > section{
    border-top: 2px solid rgb(77, 77, 77);/*实心边框*/
    border-right: 2px solid rgb(77, 77, 77);/*实心边框*/
}
main > ul:nth-child(3) > li:hover > a > i.iconfont:last-of-type{
    color: rgb(77, 77, 77);
    box-shadow:0px 0px 0px 0px rgb(187, 187, 187);/*阴影*/
}