.back {
    width: 84%;
    background-color: #f7f7f7;
    border-radius: 20px;
    margin-left: 8%;
    margin-top: 80px;
    margin-bottom: 40px;
    min-width: 1200px;
}

.callus {
    font-size: 25px;
    font-weight: 900;
    color: #124383;
    text-align: center;
    margin-top: -10px;
}

.border {
    /* border: 2px solid;
    border-color: #cbd1d6; */
    height: 220px;
    width: 90%;
    float: left;
    margin-left:6%;
    display: block;
    margin-top: 1%;
}

.border p{
    text-indent: 2em;
    font-size: 15px;
    font-weight: 600;
}

/* 横线分隔线 */
.link-top {
    width: 96%;
    height: 1px;
    border-bottom: solid #ACC0D8 1px;
    margin: 0px 20px 0px 20px;
}