*{
    margin: 0;
    padding: 0;
}
.banner {
    height: 737px
}

.lb_ny {
    position: relative;
}

.lb_ny a {
    position: absolute;
}

.lb_ny a {
    display: inline-block;
    width: 100%;
}

.lb_ny a span {
    display: block;
    height: 737px;
}
/* about */
.about p{
    font-size: 18px;
    font-weight: 520;
    color: #999999;
    text-indent: 2em;
    line-height: 35px;
    letter-spacing: 1.4px;
}
.about .bt_top{
    margin-top: 65px;
}
.btt .fl_b{
    float: left;
    width: 50%;
}
.btt .fl_b img{
    width: 562px;
    height: 370px;
}
.btt .fr_b{
    float: right;
    width: 40%;
}
.btt .fr_b span{
    float: right;
    font-size: 18px;
    font-weight: 520;
    color: #999999;
    text-indent: 2em;
    line-height: 35px;
    letter-spacing: 2px;
    margin-top: 100px;
}
.jdjs{
    margin-bottom: 113px;
}
.jdjs span{
    display: block;
    text-align: center;
    font-size: 18px;
    font-weight: bold;
    color: #333;
    letter-spacing: 60px;
    margin-bottom: 56px;
}