body{
    background-image: url("../image/common/Inner_bg.jpg");
    background-repeat: no-repeat;
    background-size: 100% 100%;
    height: 100%;
    width: 100%;
    /*padding: 40px;*/
    font-family: sans-serif;
    background-attachment: fixed;
    -webkit-background-size: cover;
    -o-background-size: cover;
    -moz-background-size: cover;
    overflow: hidden;
}

.container_all{
    width: 100%;
    height: 569px;
    margin-top: 210px;
}
.container_all .wrapper{
    height: 100%;
    width: 83%;
    margin: auto;
}
.container_all .wrapper .col-lg-3{
    flex: 0 0 350px;
    padding: 0;
}
.container_all .wrapper .box_model{
    height: 100%;
}
.container_all .wrapper .box_model .box_top_photo{
    width: auto;
    height: 216px;
    display: flex;
    align-items: center;
    border-top-right-radius: 8px;
    border-top-left-radius: 8px;
}
.container_all .wrapper .box_model .box_top_photo .box_title{
    color: #E8E8E8;
    font-size: 32px;
}
.container_all .wrapper .box_model .box_bottom_introduce{
    padding:70px 30px 40px 30px;
    height: 353px;
    background-color: #fff;
    border-bottom-right-radius: 8px;
    border-bottom-left-radius: 8px;
}

.container_all .wrapper .box_model .box_bottom_introduce .box_model_title{
    width: 100%;
    height: auto;
}
.container_all .wrapper .box_model .box_bottom_introduce .box_model_title span{
    display: block;
    font-size: 32px;
    color: #1b1e21;
    text-align: center;
}
.container_all .wrapper .box_model .box_bottom_introduce .box_model_txt{
    width: 100%;
    height: auto;
    margin: 15px auto 20px auto;
}
.container_all .wrapper .box_model .box_bottom_introduce .box_model_txt span{
    display: block;
    font-size: 20px;
    color: #464646;
    padding: 10px 0;
    text-align: center;
}

.box_model_img{
    width: 100%;
    height: 100px;
    padding-top: 25px;
    display: flex;
    align-items: flex-end;
}

nav ul li span.active div{
    background: #464646;
    height: 4px;
    width: 80%;
}

nav ul li span.active a{
    font-family: SourceHanSansCN-Medium;
    color: #464646;
}