.zyzd_service li{ width: 278px; height: 457px; padding: 20px; border: 1px solid #ddd; border-radius: 5px;
                  background-position: center 258px !important; background-repeat: no-repeat !important; cursor: pointer;}
.zyzd_service li:hover{ border-color: #44c3b5; background-color: #edfff5 !important;}
.zyzd_service li h1{ font-size: 18px; color: #333; margin-bottom: 20px;}
.zyzd_service li p{margin: 8px 0; margin-bottom: 10px;}
.zyzd_service li:nth-child(1){float: left; background: url('../images/zyzd01.png')}
.zyzd_service li:nth-child(3){margin-left: 339px; margin-right: 339px; background: url('../images/zyzd03.png')}
.zyzd_service li:nth-child(2){float: right; background: url('../images/zyzd02.png')}

.why_choose{overflow: auto; padding: 52px 0 0 0;}
.why_choose li{ width: 450px; padding: 14px 18px;
                background-repeat: no-repeat; background-position: 25px center;
                border: 1px solid #ddd;
                border-radius: 5px;
                cursor:pointer;
              }
.why_choose li h1{font-size: 18px; color: #333;}
.why_choose li span{font-size: 14px; color: #333; margin-top: 10px; display: inline-block;}
.why_choose li h1,
.why_choose li span{margin-left: 80px;}
.why_choose li:nth-child(odd){float: left;}
.why_choose li:nth-child(even){float: right;}
.why_choose li:nth-child(1){background-image: url('../images/zyzd04.png'); margin-bottom: 28px;}
.why_choose li:nth-child(2){background-image: url('../images/zyzd05.png'); margin-bottom: 28px;}
.why_choose li:nth-child(3){background-image: url('../images/zyzd06.png');}
.why_choose li:nth-child(4){background-image: url('../images/zyzd07.png');}
.why_choose li:hover{background-color: #edfff5; border-color: #5acabe;}
.zytil{margin-top: 52px;}