.section{
    width: 1197px;
    position: relative;
    margin: 30px auto;
    display: flex;
}
.content_left{
    width: 473px;
    /*height: 804px;*/
    position: relative;
    margin-left: -140px;
    background:url(/image/gettingStarted/black_box_header.png?v=2) no-repeat  0 0;
    /*z-index:100;*/
    max-width: 540px;
}
.sidebar_bg{
    /*height: 100%;*/
    padding-top: 35px;
    background: url(/image/gettingStarted/black_box_footer.png) no-repeat  0 bottom;
}
.left_nav{
    position: relative;
    /*height: 804px;*/
    color: #fff;
    /*z-index: -1;*/
    padding-left: 226px;
    background: url(/image/gettingStarted/black_box_line.png) repeat-y  0 0;
}
.leftNav_one{
    /*z-index: -1;*/
    background:none;
    /*top: 35px;*/
}
.leftNav_tow{
    padding-top: 35px;
    padding-bottom: 35px;
}
.leftNav_three{
    /*padding-top: 46px;*/
    padding-bottom: 40px;
}
.sidebar-bottom {
    height: 200px;
}
.left_nav_list{
    padding-left: 20px;
}
.left_nav_list .tab_btn{
    display: block;
    line-height: 30px;
    width: 100%;
    color: #fff;
    font-size: 16px;
    cursor: pointer;
}
.line{
    display: inline-block!important;
    width: 2px!important;
    height: 16px!important;
    border-left: 2px solid #db472f;
    padding-right: 4px;
    margin-bottom: -3px;
    opacity: 0;
    filter:Alpha(opacity=0);
}
.tab_cur,.left_nav_list .tab_btn:hover{
    color: #db472f!important;
}
.tab_cur .line,.left_nav_list .tab_btn:hover .line{
    opacity: 1;
    filter:Alpha(opacity=100);
}
.left_nav_title{
    margin-bottom: 5px;
    font-size: 24px;
}
.content_right{
    width: 898px;
    overflow: hidden;
    border-top: 2px solid #000000;
}
.c_right_title{
    height: 82px;
    line-height: 95px;
    text-align: center;
    font-size: 30px;
    padding-bottom: 15px;
}
.title_icon{
    display: inline-block;
    background: url(/image/gettingStarted/title_bg.png) 0 0 no-repeat;
}
.icon_left{
    width: 38px;
    height: 35px;
    position: relative;
    top: -5px;
    background-position: 0 0;
}
.icon_right{
    width: 40px;
    height: 47px;
    position: relative;
    top: 14px;
    background-position: -146px -6px;
}
.c_right_p p{
    padding: 10px 0;
    line-height: 32px;
    font-size: 16px;
    color: #333333;
}
.c_right_p img{
    width: 800px;
    margin: -18px 0;
}
.font_weight{
    font-weight: bold;
}
.box_add{
    width: 16px;
    height: 16px;
    position: absolute;
    cursor: pointer;
    font-weight: bold;
    font-size: 16px;
    color: #d54640;
    /* top: 7px; */
    right: 235px;
}
.add_cur{
    opacity: 1;
    filter:Alpha(opacity=100);
}