.about{width: 1440px; margin:0 auto;background: url(../images/img19.png) no-repeat #F8FEFF;  padding-top: 40px; padding-bottom: 100px;}
.about .title{width: 100%;display: flex; justify-content: center;align-items: center;}
.about .title div{color: #333333; font-weight: bold;font-size: 20px;text-align: center; background: linear-gradient(180deg, rgba(0,203,253,0.5), rgba(165,239,252,0.2));line-height: 1; padding-top: 15px; padding-bottom: 15px;border-radius: 10px;width: 750px;}
.about ul{width: 750px;margin:0 auto; padding-top: 40px;}
.about li{width: 100%;background: #f6f6f6; margin-bottom: 20px; text-align: center; border-radius: 10px;border:1px solid #cbf8ff;display:flex;align-items:stretch;-webkit-align-items:stretch;flex-wrap:wrap; padding-left: 20px; padding-top: 15px; padding-bottom: 15px;}
.about li dl{font-size: 18px;color: #1e4eff;}
.about li dd{color: #373737;font-size: 18px;padding-left: 5px;}