a,
a:link,
a:visited {
    color: #333;
    text-decoration: none;
}
ul {
    margin: 0;
    padding: 0;
}
li {
    list-style: none;
}
.clearfix:after {
    content: '\0020';
    display: block;
    clear: both;
    height: 0;
}
.clearfix {
    zoom: 1;
}

/*header样式 */
.yztj .header {
    width: 100%;
    min-width: 1220px;
    margin: 0 auto;
    position: relative;
    background-color: #2c89c4;
    color: #fff;
    height: 380px;
    text-align: center;
}
.yztj .header h1 {
    width: 693px;
    height: 60px;
    padding-top: 70px;
    margin: 0 auto 15px auto;
    overflow: hidden;
}
.yztj .header .title {
    font-size: 20px;
    font-weight: 700;
    height: 40px;
    line-height: 40px;
}
.yztj .header .sub-title {
    width: 750px;
    margin: 0px auto 30px auto;
    max-height: 60px;
    line-height: 30px;
    font-size: 16px;
    font-weight: 700;
    overflow: hidden;
}
.yztj .header .enter-btn {
    text-align: center;
}
.yztj .header .enter-btn a {
    display: inline-block;
    width: 200px;
    height: 60px;
    line-height: 60px;
    font-size: 20px;
    font-weight: 700;
    color: #fff;
    background: #17b75f;
    box-shadow: 0px 15px 32px rgba(19,128,43,.6);
}
.yztj .header .enter-btn a:hover {
    text-decoration: none;
    filter: alpha(opacity=80);
    opacity: 0.8;
}
.yztj .header .download {
    display: block;
    position: absolute;
    right: 0;
    top: 0;
    width: 196px;
    height: 156px;
    background: url('https://t2.chei.com.cn/yz/images/yztj/xiazai.png') no-repeat top center;
}

.yztj .nav-box {
    position: relative;
    width: 1180px;
    padding: 30px 20px 0px 20px;
    margin: 0 auto 50px auto;
    background: #fff;
    /* box-shadow: 0px 2px 5px #d9dfdc; */
}
.yztj .nav {
    position: absolute;
    background: url('https://t3.chei.com.cn/yz/images/yztj/nav.png') no-repeat 0 0;
    width: 1100px;
    height: 120px;
    padding: 0 108px 40px 104px;
    top: -50px;
    left: -42px;
}
.yztj .nav li a {
    float: left;
    width: 220px;
    line-height: 120px;
    text-align: center;
    font-size: 16px;
    color: #fff;
}
.yztj .ewm {
    position: absolute;
    top: -150px;
    right: 0;
}
.yztj .ewm-yz {
    top: -240px;
}
.yztj .ewm .ewm-left {
    float: right;
    padding: 20px 10px 0 0;
    line-height: 20px;
    text-align: right;
    color: #fff;
}
.yztj .ewm .ewm-right {
    float: right;
    width: 80px;
    height: 80px;
    overflow: hidden;
}
.yztj .ewm .ewm-right img {
    width: 80px;
    height: 80px;
}