.contact-ban::before {
    position: absolute;
    content: '';
    width: 100%;
    height: 65px;
    bottom: 0;
    left: 0;
    mask: url(/static/images/banner_v.svg) center no-repeat;
    mask-size: 100% 65px;
    background-color: #f8fcff;
}

.contact_main{
    padding: 10rem 0;
    background-color: #ffffff;
    background-position: center;
    background-repeat: no-repeat;
    background-size: cover;
    position: relative;
    z-index: 2;
}
.contact_main_tit{
    text-align: left;
}

.contact_box {
    border-radius: 20px;
    padding: 60px 100px;
    overflow: hidden;
    position: relative;
    background-position: right;
    background-repeat: no-repeat;
    background-size: cover;
    box-shadow: 0 5px 10px 0 #c6c6c6;
}

.contact_box::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    z-index: 1;
    width: 70%;
    height: 100%;
    background: linear-gradient(to right,#fff 45%,rgba(255,255,255,.0));
}

.contact_box .tel {
    position: relative;
    z-index: 2;
}

.contact_box h2 {
    font-size: 36px;
    color: #212121;
    margin-bottom: 30px;
}

.contact_box .txt {
    margin-bottom: 30px;
}

.contact_box .txt:last-child {
    margin-bottom: 0;
}

.contact_box .txt h3 {
    font-size: 18px;
    font-weight: 500;
    color: #717171;
    margin-bottom: 10px;
}
.contact_box .txt p {
    color: #414141;
    font-size: 20px;
}