.banner{width: 100%;}
.banner img{width: 100%;}
.about{width: 100%;padding-top: 50px;}
.about h1{ text-align: center;color: #020202; font-weight: 500; font-size: 28px;letter-spacing:2px;}
.about .about_box{width: 1100px; margin: 0 auto; position: relative; margin-top: 50px;}
.about .about_box dl{width: 100%;}
.about .about_box dl img{width: 100%;}
.about .about_box dd{ position: absolute; right: 20px;background: #fff; height: 95%; top: 2.5%; width: 53%; color: #686868; font-size: 16px; padding: 20px 20px ; border-left: 7px solid #43C7FF;}
.about .about_box dd p{ line-height: 26px;}
.about .about_box dd p:nth-child(2){margin-top: 15px;}
.about1{width: 1100px; margin: 0 auto;margin-top: 30px;display:flex; justify-content:space-between;}
.about1 dl{width: 560px;}
.about1 dd{width: 255px;}
.about1 dt{width: 255px;}
.about1 img{width: 100%;}
.about2{width: 1100px;margin: 0 auto;margin-top: 15px; margin-bottom:50px;}
.about2 img{width: 100%;}
.about3{width: 1100px;margin: 0 auto;margin-bottom:50px;padding-top: 50px;}
.about3 dl{ text-align: center;color: #020202; font-weight: 500; font-size: 28px;letter-spacing:2px; padding-bottom: 30px;}
.about3 dd img{width: 100%;}