.content_center{width:100%}.content_img{width:1920px}.content_content{width:1200px;font-size:16px;color:#666;margin:0 auto}.content_txt{padding-top:32px;line-height:32px}.content_txt span:nth-of-type(1){font-size:20px;color:#333;display:block;margin-bottom:24px}.content_content_txt1{padding-bottom:32px;color:#005bb6}.content_content_txt2{padding-bottom:41px;border-top:1px solid #e4e4e4}.content_content_txt3{padding-bottom:54px;border-top:1px solid #e4e4e4}.content_content_txt4{padding-bottom:70px;border-top:1px solid #e4e4e4}