.global_mode_service4{width:100%;max-width: 1920px;margin-top: 15px;padding:35px 0px;background: #fff;overflow: hidden}.global_mode_service4 .top_title{font-size: 54px;text-align: center;line-height: 78px;margin-bottom: 20px;padding:0px 20px}.global_mode_service4 .top_subtitle{max-width:1075px;margin:0px auto;padding:0px 20px;font-size: 18px;text-align: center;line-height: 36px}.global_mode_service4 .content_list{max-width:1680px;margin:80px auto 0px;overflow: hidden}.global_mode_service4 .content_list .content_item{float: left;width:24.70238%;padding-left: 5.95238%;margin-left: 2.67857%;position: relative}.global_mode_service4 .content_list .content_item{float: left;width:24.70238%;padding-left: 5.95238%;margin-left: 1.3%;margin-right:1.3%;position: relative}.global_mode_service4 .content_list .content_item .icon_pic{position: absolute;top:0px;left:0px;width:10%}.global_mode_service4 .content_list .content_item .item_title{font-size: 26px;line-height: 36px;margin-bottom: 50px;position: relative}.global_mode_service4 .content_list .content_item .item_title:after{content:'';position: absolute;bottom:-25px;left:0px;width:73px;height: 1px;background: #737373}.global_mode_service4 .content_list .content_item .item_desc{font-size: 18px;line-height: 28px}@media screen and (max-width: 1370px){.global_mode_service4 .content_list .content_item .item_desc{font-size: 16px}}

@media screen and (max-width: 1000px){.global_mode_service4{padding-top: 30px}.global_mode_service4 .top_title{font-size: 46px;line-height: 64px}.global_mode_service4 .top_subtitle{font-size: 14px;line-height: 30px}.global_mode_service4 .content_list .content_item{float: unset;width: 75%;padding-left: 10%;margin-left: 10%;margin:0 5% 7%}}

@media screen and (max-width: 850px){.global_mode_service4 .top_title{font-size: 40px;line-height: 58px}.global_mode_service4 .top_subtitle{font-size: 12px;line-height: 24px}}

@media screen and (max-width: 730px){.global_mode_service4 .top_title{font-size: 36px;line-height: 52px}}

@media screen and (max-width: 660px){.global_mode_service4 .top_title{font-size: 32px;line-height: 46px}}

@media screen and (max-width: 600px){.global_mode_service4 .top_title{font-size: 28px;line-height: 40px}}

@media screen and (max-width: 530px){.global_mode_service4 .top_title{font-size: 24px;line-height: 34px}}