.sk {
    position: absolute;
    left: 190px;
    top: 25px;
    width: 56px;
    height: 26px;
    border-left: 2px solid red;
    padding-left: 12px;
}
.sk_list {
    float: left;
    width: 372px;
    height: 46px;
    line-height: 46px;
}
.sk_list ul li{
    float: left;
    padding: 0 30px;
}
.sk_list ul li a {
    font-size: 16px;
    font-weight: 700;
    color: #000;
}
.sk_con {
    float: left;
    height: 46px;
    line-height: 46px;
}
.sk_con ul li {
    float: left;
    padding: 0 20px;
}
.sk_con ul li a {
    font-size: 14px;    
}
.sk_con ul li:last-child a::after {
    font-family: "iconfont";
    content: "\e687";
}

.sk_cintainer {
    margin-bottom: 15px;
}
.sk_bd ul li{
    float: left;
    width: 290px;
    height: 460px;
    margin-right: 13px;
    border: 1px solid transparent;
    background: url(../upload/list.jpg) no-repeat;
}
.sk_bd ul li:hover {
    border: 1px solid red;
}
.sk_bd ul li:nth-child(4n) {
    margin-right: 0;
}