.about-kv {
    padding-top: 200px;
    padding-bottom: 118px;
    background-color: rgba(240, 244, 255, .5)
}

@media screen and (max-width:749px) {
    .about-kv {
        padding-top: 120px;
        padding-bottom: 120px
    }
}

.about-kv-box {
    width: 1200px;
    margin-top: 0;
    margin-bottom: 0;
    margin-left: auto;
    margin-right: auto;
    position: relative
}

@media screen and (max-width:749px) {
    .about-kv-box {
        width: 654px
    }
}

.about-kv-title {
    margin-top: 0;
    margin-bottom: 32px;
    margin-left: auto;
    margin-right: auto;
    color: #1f2329;
    font-size: 48px;
    line-height: 56px;
    width: 480px;
    font-weight: 600
}


.about-kv-intro {
    margin-top: auto;
    margin-bottom: auto;
    margin-left: auto;
    margin-right: auto;
    width: 580px;
    font-size: 18px;
    line-height: 26px;
    color: #51565d;
    text-align: center;
    display: block
}

.about-kv-cover {
    position: absolute;
    top: 16px;
    left: 74px;
    width: 159px;
}

@media screen and (max-width:749px) {
    .about-kv-cover {
        opacity: 0
    }
}

.about-kv-cover-img {
    position: absolute;
    top: 16px;
    right: 60px;
    height: 145px
}

@media screen and (max-width:749px) {
    .about-kv-cover-img {
        opacity: 0
    }
}