main{
  margin-top:69px;
}


.logo{
  width:50%;
}

.product{
  width: 80%;
  margin: auto;
  background-color: #f7f7f7;
  overflow: hidden;
}

header{
  position: fixed;
  top:0;
  background-color: #f7f7f7;
  width: 100%;
  opacity: 0.9;
  z-index:1;
}

.lang{
  padding: 15 0 25 0;
}

.lang a{
  text-decoration: none;
  color:#000000;
  font-weight: 100;
  font-size: 1vw;
}

.top{
  height: 68px;
}

.nav{
  display: block;
  height: 68px;
  padding-left: 31px;
  border-bottom: 1px #e5e5e5 solid;
}

.block-home{
  display: none;
}

.home{
  width: 68px;
  float: left;
  margin-left: 2vw;
}

.home img{
  width: 100%;
  height: auto;
}

.homepage{
  margin-top: 0px;
}

.homepage h2{
  text-align: center;
  font-size: 5vw;
  letter-spacing:0.1em;
}

.homepage h3{
  text-align: center;
  font-size: 1.3vw;
  letter-spacing:0.1em;
}

img{
  height: 100%;
}

.nav ul{
  list-style: none;
  margin: 0;
  float: left;
  padding-left: 3vw;
  width: 80%;
}

.nav ul li{
  display: inline-block;
  float: left;
  height: 66px;
  padding: 0 1.5vw 0 1.5vw;
  border-bottom:2px #f7f7f7 solid;
}

.nav ul li a, .nav ul li a:visited{
  line-height: 68px;
  text-decoration: none;
  color: #000000;
  font-style: normal;
  font-weight: 300;
  font-size: 1.3vw;
}

.nav ul li:hover{
  border-bottom: 2px #454545 solid;
  transition:800ms;
}

.home-cates{
  width: 90%;
  height: auto;
  margin: 0 auto;
}

.cate{
  width: 29%;
  height: 22vw;
  float: left;
  text-align: center;
  text-decoration: none;
  background-color: #ffffff;
  margin: 10px 10px;
  border-radius:5px;
}

.sth{
  height: 20%;
}

.img{
  height: 50%;
}

.cate img{
  width: 95%;
  height: auto;
  margin:0 auto;
}

.cate p{
  font-size:1.5vw;
  font-weight:300;
  padding:1vw;
  color:#000;
}

.news {
  width: 40%;
  float: left;
  margin: 0 5%;
}

.news h4{
  font-size:1.2vw;
}

.news a{
  text-decoration: none;
  color:#000000;
  text-align: center;
}

.about {
  width: 40%;
  float: left;
  margin: 0 5%;
}

.about h4{
  padding:0 4vw 0 5vw;
}

.team {
  width: 100%;
  background-color: #f7f7f7;
  float: left;
}

.case{
  background-color: #fff;
  overflow: hidden;
  border-radius:10px;
  margin: 1vw auto;
}

.case img{
  width:40%;
  height: auto;
  margin: 5vw 1vw;
  float:left;
}

.case p{
  float:left;
  font-size:1.5vw;
  padding: 0;
  margin: 2vw 0 0 2vw;
}

.case h5{
  font-size: 0.95vw;
  float:left;
  width: 50%;
  margin: 1vw 3vw 1vw 2vw;
  height: 5.5em;
  overflow:hidden;
  text-overflow:ellipsis;
  display: -webkit-box;
  -webkit-box-orient: vertical;
  word-break: break-all;
  -webkit-line-clamp: 5;
}

.case a{
  background: #d8453e;
  border-radius:5px;
  font-size: 1.2vw;
  font-weight: 400;
  letter-spacing: 0.2em;
  color:#fff;
  padding: 1vw 1vw;
  float: right;
  width: 8%;
  margin:2vw 3vw;
  text-align: center;
  text-decoration: none;
}

.tree{
  margin: 0 auto;
  width: 80%;
  padding-top:2vw;
}

.tree a{
  text-decoration: none;
}

.tree span{
  color: #000000;
  font-weight: 200;
  font-size: 1.3vw;
}

.title{
  width: 60%;
  margin: auto;
}

.intro{
  width: 60%;
  margin: 0 auto;
}

.intro img{
  width: 100%;
  height: auto;
  display:block;
  margin: 0 auto;
}

.intro h4{
  margin: 0 auto;
}

table{
  margin: 0 auto;
  font-weight: 200;
  width: 100%;
  border-bottom: 1px #000000 solid;
}

td{
  border-top: 1px #000000 solid;
}

tr:nth-child(odd){
  background-color:#ccc;
}

th{
  border-top: 1px #000000 solid;
  font-weight: 300;
  text-align: left;
  color: white;
  background-color: #505150;
}

.produce{
  margin: 0 auto;
  width: 60%;
  overflow: hidden;
  background-color: #f7f7f7;
}

.produce img{
  width: 50%;
  height:auto;
  border: 1px #000 solid;
  float: right;
}

.produce span{
  margin: 0 1vw 0 0;
  font-weight: 200;
  font-size: 1.4vw;
  float: left;
}

.support{
  margin: 0 auto;
  padding-bottom: 3vw;
  width: 60%;
  overflow: hidden;
}

.support a{
  background-color: #d8453e;
  border-radius:7px;
  font-size: 1.5vw;
  font-weight: 300;
  letter-spacing: 0.1em;
  color:#fff;
  text-align: center;
  padding: 1vw;
  float: left;
}

.step{
  width: 48%;
  float: left;
  padding: 1vw 1vw 1vw 0;
}

.step span{
  font-size: 1vw;
}

.step img{
  width: 40%;
}

.number{
  background-color:#d7463e;
  text-align: center;
  width: 1vw;
  height: vw;
  margin: 0 0;
  color: #fff;
}

.main{
  width: 80%;
  margin: auto;
  padding-bottom: 1vw;
  overflow: hidden;
}

.main p{
  letter-spacing: 0.1em;
  line-height: 180%;
  padding-bottom: 2vw;
}

.conta{
  width: 70%;
  margin: 0;
  float: left;
}

.wechat{
  float: right;
  width: 30%;
}

.wechat p{
  color: #000;
  margin: 0;
}

.wechat img{
  width: 40%;
  height: auto;
  float: left;
}

.flow img{
  width: 100%;
  height: auto;
}

footer{
  background-color: #ffffff;
  float: left;
  width: 100%;
  margin-top: 2vw;
}

footer h6{
  padding-left: 2vw;
}