.main {
    width: 1200px;
    margin: 30px auto;
    padding: 30px 20px;
    background: #fff;
}
.item {
    width: 270px;
    height: 92px;
    background: #F2F4FF;
    border: 1px solid #7B8FA2;
    float: left;
    margin-right: 25px;
    margin-bottom: 20px;
}
.item:nth-child(4n) ,.item:nth-child(15){
    margin-right: 0;
}
.item:nth-child(13) , .item:nth-child(14) {
    width: 418px;
}
.item a {
    font-size: 22px;
    display: block;
    width: 100%;
    height: 100%;
    line-height: 92px;
    text-align: center;
    color: #486CBB;
}
.rzdl {
    display: block;
    float: left;
    width: 100%;
    height: 96px;
    background: #4076DA;
    color: #fff;
    font-size: 40px;
    font-weight: bold;
    text-align: center;
    line-height: 96px;
}

/* --------------------适老化------------ */
.oldModel .item a{font-size:35px}