.banner{
    width: 100%;
    height: auto;
    display: inline-block;
}
.banner img{
    width: 100%;
}
.main {
    width: 100%;
    height: auto;
    display: inline-block;
    margin-bottom: 70px;
}
.main-top{
    width: 100%;
    height: auto;
    display: inline-block;
    border-bottom: 1px solid#e8e8e8;
}
.main-left{
    float: left;
    line-height: 65px;
    letter-spacing: 1px;
}
.main-left img{
    float: left;
    margin-right: 6px;
    margin-top: 24px;
}
.main-left p{
    float: left;
}
.main-left p a{
    color: #434343;
}
.main-nav{
    float: right;
    line-height: 73px;
}
.main-nav li{
    float: left;
    margin-left: 26px;
}
.main-nav li a{
    font-size: 16px;
}
.main-nav li:hover{
    border-bottom: 2px solid#1e63ac;
}
.case-box{
    width: 100%;
    height: auto;
    display: inline-block;
    margin-top: 23px;
}
.cb-one{
    width: 100%;
    height: auto;
    display: inline-block;
    margin-bottom: 6%;
}
.cbo-left{
    width: 45%;
    float: left;
    height: 364px;
    overflow: hidden;
}
.cbo-left img{
    width: 100%;
    height: auto;
}
.cbo-right{
    width: 51%;
    float: right;
}
.cbo-right h3{
    color: #5a5a5a;
    font-size: 28px;
    font-weight: normal;
    padding-top: 10px;
    padding-bottom: 10px;
}
.cbo-right p{
    font-size: 14px;
    line-height: 250%;
    color: rgb(102, 102, 102);
    padding-top: 14px;
}

.cb-two{
    width: 100%;
    height: auto;
    display: inline-block;
    margin-bottom: 6%;
}
.cbt-right{
    width: 45%;
    float: right;
    height: 364px;
    overflow: hidden;
}
.cbt-right img{
    width: 100%;
}
.cbt-left{
    width: 51%;
    float: left;
}
.cbt-left h3{
    color: #5a5a5a;
    font-size: 28px;
    font-weight: normal;
    padding-top: 10px;
    padding-bottom: 10px;
}
.cbt-left p{
    font-size: 14px;
    line-height: 250%;
    color: rgb(102, 102, 102);
    padding-top: 14px;
}