.bg{ background:#7395ff !important;}
.sysbg{ width:100%; text-align:center; color:#fff; padding-top:100px}
.sysbg img{ width:30%; height:auto; overflow:hidden}
.sysbg strong{ font-size:26px; padding-bottom:20px; width:100%; float:left; text-align:center; padding-top:20px}