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.bg_box{background:#f9f6f4;width:50%;position:absolute;right:0;top:0;height:100%}#content ul li{margin-bottom:140px;padding-top:60px;margin-top:-60px}#content ul li:nth-child(odd) .service_box .txt_box{margin-right:auto;margin-left:0;padding:80px 140px 80px 0}#content ul li:nth-child(odd) .service_box .back_box{right:0}#content ul li:nth-child(odd) .service_box .back_box .img_box{right:0;left:auto}#content ul li:nth-child(odd) .service_box .back_box .bg_box{left:0}#content ul li:first-child .service_box .back_box .img_box{right:30px;top:auto;margin-top:66px}#content ul li:last-child{margin-bottom:60px}@media (max-width: 767px){#content .top_box .inner{padding:10px 20px 40px}#content .top_box h1{font-size:20px;margin-bottom:20px}#content .top_box p{max-width:641px;margin:0 auto}#content .service_box .inner{padding:0}#content .service_box .txt_box{background:#f9f6f4;padding:30px 20px 40px;position:relative;min-height:100%;width:100%;margin:0 auto}#content .service_box .txt_box 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