.main-body{background:#fff}.banner{text-align:center}.banner img{width:100%;vertical-align:bottom}.desc-area{padding:50px 0 140px 18.2%}.desc-area .desc-title{font-size:24px;color:#3c3c3c}.bottom-line{width:54px;height:4px;background:#ff7900;margin-top:10px;margin-bottom:70px}.desc-content{margin-bottom:10px}.desc-content .content-head{color:#3c3c3c;font-size:20px}.desc-content .content-body{color:#6e6e6e;font-size:18px}