* {margin: 0;padding: 0;  }
a {text-decoration: none;color: rgba(102,102,102,1);  }
ul, li {list-style: none;}
h1, h2, h3, h4, h5 {font-weight: bold;}
body {font-family:SourceHanSansCN;  width: 1900px; margin: 0 auto;}
.clear {clear: both;}

/*背景导航*/
.nav{
    width:100%;
    height: 900px;
    margin:0 auto;
    background: url("../image/home_bg.jpg") no-repeat;
}
.nav-head{
    width: 1200px;
    height:66px;
    margin:0 auto;
    line-height: 66px;
}

@keyframes fade-in {
    0% {opacity: 0;}/*初始状态 透明度为0*/
    40% {opacity: .5;}/*过渡状态 透明度为0*/
    40% {opacity: .8;}/*过渡状态 透明度为0*/
    100% {opacity: 1;}/*结束状态 透明度为1*/
}
.nav-head-L{
    width:50%;
    float: left;
}
.nav-head-L span{
    display: inline-block;
    font-weight: bold;
    color:#333333;
    margin-left: 76px;
    font-size:24px;
    letter-spacing:2px;
}
.nav-head-R{
    width:50%;
    float: left;
    color:#333333;
}
.nav-head-R li{
    float: left;
    width: 120px;
    height: 66px;
    line-height: 63px;
    text-align: center;
    font-size: 14px;
    font-weight: 400;
}
.nav-head-R li a{
    color:#333333;
}
.nav-head-R .tit{
    color:#333333;
    font-size:16px;
    font-weight: bold;
}
.nav-head-R li:hover{
    color:#fff;
}

.nav-center{
    width:53%;
    float:right;
    color:#333333;
}
.nav-center h1{
    width:600px;
    margin-top: 173px;
    text-align: left;
    font-size: 48px;
}
.nav-center ul{
    width:557px;
    line-height:40px;
    letter-spacing:2px;
    font-size:24px;
    color:#666666;
    font-weight:400;
    margin-top: 110px;
}
.nav-center button{
    width:182px;
    height:48px;
    border: none;
    margin-top: 50px;
    background:rgba(255,187,98,1);
}
.nav-center button a{
    font-size:18px;
    color:rgba(255,255,255,1);
}
/*导航内容结束*/
/*内动开始*/
.center{
    width:1200px;
    height:400px;
    margin:0 auto;
    padding:20px 0 0 0;
    text-align:center;
}
.center h1{
    font-size:36px;
    color:rgba(51,51,51,1);
}
.center ul li{
    float:left;
    margin:20px 0 0 90px;
}
.center ul li img{
    width:182px;
    height:182px;
}
.center h3{
    font-size:16px;
    color:rgba(51,51,51,1);
    margin-top:28px;
}
.center p{
    font-size:14px;
    font-weight:400;
    color:rgba(153,153,153,1);
    line-height:21px;
    margin-top:13px;
}
/*内容结束*/
.footer{
    width:100%;
    height:417px;
    text-align:center;
    background:rgba(122,117,129,1);
}
.footer h1{
    font-size:36px;
    color:rgba(255,255,255,1);
    padding-top:53px;
}
.footer-C{
    width:1200px;
    margin:50px auto;
    text-align: left;
    line-height: 110px;
}
.footer-C a{
    margin-left:204px;
}
.footer-C span{
    font-size:16px;
    font-weight:500;
    color:rgba(255,255,255,1);
    line-height:24px;
}
.footer-C img{
    width:46px;
    vertical-align:middle;
}
/*最底部*/
.minimum{
    font-size:18px;
    font-weight:400;
    color:rgba(102,102,102,1);
    line-height:40px;
    text-align: center;
    margin:70px 0;
}