.service_bg{display:block;overflow:hidden;height:680px;background:#f2f2f2;}.service_biaoti{overflow:hidden;height:92px;width:259px;margin:0 auto;margin-top:-150px;margin-bottom:10px;}.case_bg{display:block;overflow:hidden;height:889px;}.case_biaoti{overflow:hidden;height:92px;width:301px;margin:0 auto;margin-top:-150px;margin-bottom:10px;}.case_yingwen {overflow:hidden;margin-right:2000px;font-family: 微软雅黑;font-size: 14px;text-align:center;color: #9a9a9a;text-transform: uppercase;padding-bottom: 8px;line-height: 24px;}.case_container{overflow:hidden;margin-top:900px;}.plan_bg{display:block;overflow:hidden;height:899px;background:#f2f2f2;}.plan_biaoti{overflow:hidden;height:92px;width:310px;margin:0 auto;margin-top:-100px;margin-bottom:8px;}.plan_yingwen {overflow:hidden;margin-right:2000px;font-family: 微软雅黑;font-size: 14px;text-align:center;color: #9a9a9a;text-transform: uppercase;padding-bottom: 8px;line-height: 24px;}.N_content {height: 440px;display: none;overflow: hidden;width: 1200px;margin-top: 10px }.N_content_l {width: 610px;height: 440px;float: left;margin-top:700px;overflow: hidden }.N_content_l dl {width: 300px;margin-right: 10px;float: left;height: 422px;background: #f2f2f2 }.choose_biaoti{overflow:hidden;height:100px;width:320px;margin:0 auto;margin-top:-100px;margin-bottom:8px;}.choose_content{overflow:hidden;margin-top:500px;}.ourcus_biaoti{overflow:hidden;height:92px;width:311px;margin:0 auto;margin-top:-100px;margin-bottom:8px;}.ourcus_yingwen {overflow:hidden;margin-left:2000px;font-family: 微软雅黑;font-size: 14px;text-align:center;color: #9a9a9a;text-transform: uppercase;padding-bottom: 8px;line-height: 24px;}.customer_content{overflow:hidden;margin-top:650px;}