h1,.h1{
  font-size: 48px;
}
h2,.h2{
  font-size: 36px;
}
h3,.h3{
  font-size: 24px;
}
h5,.h5{
  font-size: 14px;
}
body{
	font-size: 20px;
}
header{
	position: fixed;
	width:100%;
	top:0;
	left: 0;
	background: #fff;
	z-index: 10;
	box-shadow: 0px 4px 12px -2px rgba(0, 0, 0, 0.09);
}
.navbar-nav{
   flex-direction: row;
}
.navbar .btn{
	width:170px;
}
.navbar-nav{
	margin-left: 70px;
}
.nav-link{
	font-size: 17px;
	color:#333;
	margin:0 16px;
}
.landing main{
	padding-top: 70px;
}
.topbanner{
	background:url(../images/landing-top-bg.jpg) top center no-repeat;
	background-size: cover;
  min-height: 625px;
  display: flex;
  align-items: center;
}
.topbanner .caption{
	width:610px;
	max-width:100%;
}
.model-img img{
	width:100%;
}
.model-img{
  position: absolute;
  width: 380px;
  top: 50%;
  right: 100px;
  margin-top: -265px;
}
.qrcode {
	margin-top: 45px;
}
.qrcode-item {
  display: flex;
  flex-direction: column;
}
.qrcode-item img{
	width:180px;
}
.text-box{
	padding:60px 0 45px;
	text-align: center;
}
.text-box-wrap{
	width:700px;
	max-width:100%;
	margin:0 auto;
}
section.section-margin{
	padding:60px 0;
}
.row-img-txt {
	text-align:center;
}
.row-img-txt>div{
	padding:0 40px;
}
.row-img-txt img{
	width:235px;
	max-width:100%;
	margin-top:30px;
	margin-bottom: 30px;
}
/*.row-imgTxt-left{
	padding-left: 0;
}
.row-imgTxt-right{
	padding-right: 0;
}
.row-imgTxt-img img{
	width:720px;
	max-width:100%;
}
.row-img-txt .caption{
	padding:0 50px;
}
.litered-bg .btn-red{
	width:160px;
}
.install-img img{
	width:327px;
	max-width:100%;
}*/
footer{
	color:#FFF;
	background: #828282;
	padding:30px 0 35px;
}
.footer-top{
	text-align:center;
}
.footer-top>img{
  width:120px;
  margin-bottom:25px;
}

/* =========== 1200 ========== */
@media (max-width: 1200px){
/*	.topbanner{
	  min-height: 500px;
	}*/
	.topbanner .caption{
		width:500px;
	}
	.model-img{
		width: 360px;
    margin-top: -230px;
	}
}
/* =========== 992 ========== */
@media (max-width: 992px){
	h1,.h1{
	  font-size: 32px;
	}
	h2,.h2{
	  font-size: 28px;
	}
	h3,.h3{
	  font-size: 15px;
	}
	.navbar-nav, .navbar .btn{
		display:none;
	}
	.topbanner{
    background: url(../images/landing-top-mbg.png) bottom center no-repeat;
    background-size: cover;
    display:block;
    padding-bottom: 50px;
	}
	.topbanner .caption{
		padding-top:50px;
	}
	.model-img{
		position:relative;
		top:20px;
		right:auto;
		text-align:center;
		width:100%;
		margin-top:auto;
	}
	.model-img img{
		width:280px;
		margin-left:-60px;
	}
	.qrcode {
	  justify-content: center;
	}
	/*.row-img-txt .caption{
		margin:20px 0;
		padding:0;
	}
	.install-img{
		text-align:center;
	}*/
  .footer-bottom{
  	flex-direction:column;
  }
  
}
/* =========== 576 ========== */
@media (max-width: 576px){
	.row-img-txt>div {
    padding: 0 12px;
  }
  .row-img-txt img {
    margin-bottom: 10px;
  }
	.footer-top>img{
	   width:100px;
	   margin-bottom: 20px;
	}
	.qrcode-item a:last-child{
		display:none;
	}
}
/* =========== 375 ========== */
@media (max-width: 375px){
	.qrcode-item img {
	    width: 150px;
	}
}