.about1_body_bg{
    background-image:url('../../images/case/case_bg.jpg');
}
.supply_system_body_bg2{
    background-image:url('../../images/case/Product_supply_system.png');
}
.supply_system_main{
    width:100%;
    height:100%;
}
.supply_system_bg{
    position:absolute;
    left:0%;top:4%;
    z-index:0;
    width:45%;
    height:30%;
    background-image:url('../../images/case/Product_supply_system2.png');
    background-position: center;
    background-size:99%;
    background-repeat: no-repeat;

}
.supply_system_info{width:80%;height:50%;margin:0 auto;position:absolute;top:20%;right:0;left:0;}
.supply_system_info img{float:left;width:45%;margin-top:0%;}
.supply_system_info div{float:left;width:50%;margin-left:5%;overflow:hidden;}
.supply_system_info div strong{display:block;font-size:32px;color:#c9151e;}
.supply_system_info div p{font-size:14px;color:#111;line-height:36px;margin-top:10px;}
.supply_system_list{overflow:hidden;width:80%;height:20%;margin:0 auto;position:absolute;top:74%;right:0;left:0;}
.supply_system_li{
    float: left;
    width: 25%;
    position: relative;
    overflow: hidden;
    height: 100%;
    -webkit-animation:fadeInUp 2s .2s ease both;
    -moz-animation:fadeInUp 2s .2s ease both;}
@-webkit-keyframes fadeInUp{
    0%{opacity:0;
        -webkit-transform:translateY(200px)}
    100%{opacity:1;
        -webkit-transform:translateY(0)}
}
@-moz-keyframes fadeInUp{
    0%{opacity:0;
        -moz-transform:translateY(200px)}
    100%{opacity:1;
        -moz-transform:translateY(0)}
}
.supply_system_li .round{width:64px;height:64px;border-radius:50%;background:#DDD;position:absolute;z-index:0;left:0;top:0;}
.supply_system_li_hover .round{background:#c9151e;}
.supply_system_li_hover strong{color:#FFF;}
.supply_system_desc{position:absolute;z-index:1;left:4%;}
.supply_system_desc strong{font-size:28px;}
.supply_system_desc span{
    font-size: 22px;
    position: absolute;
    top: 35%;
    display: block;
    width: 90px;
    left: 90%;
    letter-spacing: 2px;
}
.supply_system_li_hover .supply_system_desc span font{color:#FFF;}
.footer_desc{display:none;}