.main-content h3 {text-align: center; height: 50px; line-height: 50px; font-size: 36px;}
.main-content .business ul {width: 100%;}
.main-content .business ul li {float: left; margin: 10px;width: calc(33% - 20px);border-radius: 8px; background: #fff; padding: 10px; overflow: hidden; word-wrap: break-word; word-break: break-all;}
/*.main-content .business ul li:nth-child(3n+1) {margin-left: 0;}*/
.main-content .business ul li:hover {box-shadow: 0px 20px 20px 0px rgba(0, 0, 0, .1);}
.main-content .business .img {width: 100px;}
.main-content .business .txt {width: calc(100% - 120px); padding-top: 10px;}
.main-content .bg-white .business ul {padding: 20px;}
.main-content .bg-white .business ul li {background-color: #f6f6f6;}
/*.main-content .ronghe .business ul li:nth-last-child(1) {margin-bottom: 0;}
.main-content .ronghe .business ul li:nth-last-child(2) {margin-bottom: 0;}
.main-content .ronghe .business ul li:nth-last-child(3) {margin-bottom: 0;}*/
@media all and (max-width: 1200px){
  .main-content .business ul li {width: calc(50% - 20px);}
}
@media all and (max-width: 640px){
  .main-content .business ul li {width: calc(100% - 20px);}
}

.main-content .business ul li {width: 33.3% \9; margin: 0\9;}