.nav{
	position: fixed;
}
.banner-box{
	background: url(../images/case/hzalBanner.jpg) no-repeat center;
    background-size: cover;
}
.main .fr-content .h3-title{
	font-family: PingFangSC-Medium;
	font-size: 24px;
	color: #000000;
	line-height: 48px;
	font-weight: 500;
	margin-top: 30px;
}
.main .fr-content p{
	font-family: PingFangSC-Regular;
	font-size: 16px;
	color: #000000;
	line-height: 32px;
	font-weight: 400;
}