.app{background-color:#fff}.app-content{max-width:100%;min-width:1200px}section{max-width:1200px;margin:0 auto;padding-top:65px}section .title-shadow{margin-bottom:40px}section .title-shadow:before{content:"成功案例"}section .bg{height:845px;margin-bottom:60px;background-position:50%;background-repeat:no-repeat;background-size:100% 100%}section .bg:last-child{margin-bottom:80px}section .bg+.bg{-webkit-box-shadow:0 0 10px rgba(0,0,0,.2);box-shadow:0 0 10px rgba(0,0,0,.2)}