.ztbg{background: #fff;}
.ztHead{position: fixed;top:0;left: 0;z-index: 999;background: #fff;height: .55rem;width:100%;box-shadow: 0 2px 2px #ccc;}
.ztHead img{width:1.93rem;height:auto ;margin-left: .1rem;margin-top: .06rem;}
.ztBanner{width:100%;}
.ztBanner img{width:100%;}
.tyTitle{font-size: .25rem;color:#333;text-align: center;}
.tyIntroduce{font-size:.18rem;color:#999;text-align: center;width:86%;margin:0 auto;margin-top: .3rem;}
.plan{margin-top: .44rem;}
.plan img{width:87.2%;margin:0 auto;display: block;margin-top: .44rem;}
.function{margin-top: .6rem;}
.function img{display: block;margin:0 auto;width:94%;margin-top: .3rem;}
.ellipsis{text-align: center;font-size: .24rem;color:#A3DFFF;}
.experience{margin-top: .8rem;}
.experience img{display: block;margin:0 auto;width:62.9%;margin-top: .34rem;}
.custom{margin-top:1rem ;}
.customImg{width:86.7%;margin:0 auto;margin-top: .6rem;}
.customImg img{display: inline-block;width:46.1%;}
.business{margin-top: 1rem;}
.business ul{margin-top: .2rem;}
.business li{width:94.7%;margin: 0 auto;border-bottom:1px solid #eee;height: auto;}
.businessLi{height: .65rem;background: url(../images/dakai@3x.png) no-repeat center right;background-size:.2rem .12rem ;background-position-x: 90%;}
.business li.active .businessLi{height: .65rem;background: url(../images/dakai2@3x.png) no-repeat center right;background-size:.2rem .12rem ;background-position-x: 90%;}
.businessImg{width:.3rem;height: .65rem;display: flex;align-items: center;justify-content: center;float: left;margin-left: .2rem;}
.business li img{max-width: 100%;max-height: 100%;}
.businessList{font-size:.16rem ;color:#666;float: left;line-height: .65rem;margin-left: .3rem;}
.drop-down{width:90%;margin:0 auto;padding-bottom:.15rem;display: none;font-size: .14rem;color:#999;}
.business li.active .drop-down{display: block;}
.case{width:100%;background: #272731;height: 5.27rem;margin-top: .2rem;padding-top: .3rem;}
.case ul{width:86%;margin:0 auto;margin-top:.35rem ;}
.case li{float: left;width:1.3rem;margin-bottom: .35rem;}
.case li:nth-child(2n){float: right;}
.case li img{width:1.02rem;height: 1.02rem;margin:0 auto;display: block;margin-bottom: .2rem;}
.case li p{text-align: center;font-size: .15rem;color:#fff;line-height: 150%;}
.aboutUs{margin-top: .3rem;}
.aboutUs p{font-size:.15rem ;color:#999;width:94.7%;margin:0 auto;text-indent:2em;line-height: 150%;}
.aboutUs img{width:100%;display: block;margin-top: .3rem;}
.contactUs{margin-top: .45rem;}
.contactUs form{margin-top: .3rem;}
.contactUs input{width:93.6%;height: .5rem;line-height: .5rem;margin:0 auto .1rem;text-indent:1em;font-size: .15rem;color:#333;box-shadow: 0 2px 7px #ddd;background: #fff;display: block;border:0; -webkit-appearance: none; box-shadow: 0 2px 7px 0 #ddd; -webkit-box-shadow: 0 2px 7px 0 #ddd;}
.contactUs input::-webkit-input-placeholder { /* WebKit, Blink, Edge */
    color:#999;
}
.contactUs input:-moz-placeholder { /* Mozilla Firefox 4 to 18 */
    color:#999;
}
.contactUs input::-moz-placeholder { /* Mozilla Firefox 19+ */
    color:#999;
}
.contactUs input:-ms-input-placeholder { /* Internet Explorer 10-11 */
    color:#999;
}
.contactUs button{margin:0 auto;display: block;width:1.3rem;height: .4rem;line-height: .4rem;color:#fff;font-size: .16rem;text-align: center;background: #6CCFFE;margin-top: .2rem;margin-bottom: .6rem;border-radius: 3px;}
.contactUs .btn{width: 93.6%;height: .5rem;line-height: .5rem;    margin: 0 auto;    margin-bottom: .1rem;    font-size: .15rem;color: #333;box-shadow: 0 2px 7px #ddd;    background: none;    display: block;    border: none;}