.banner {
    background: url(../images/about/banner.png) no-repeat center;
    background-size: cover;
    height: 620px;
    text-align: center;
    line-height: 620px;
}

.banner h3 {
    font-size: 50px;
    font-family: PingFang SC;
    font-weight: 500;
    color: #fff;
}

.content p {
    font-size: 20px;
    font-family: PingFang SC;
    font-weight: 400;
    color: #000000;
    margin-bottom: 30px;
}

.content p:last-child {
    color: #666666;
}

.bottom {
    background: url(../images/about/bottom.png) no-repeat center;
    background-size: cover;
    height: 230px;
}

@media (max-width: 1080px) {
    .banner {
        background: url(../images/about/banner_m.png) no-repeat center;
        background-size: cover;
        height: 57.4074vw;
        text-align: center;
        line-height: 57.4074vw;
    }
    .banner h3 {
        font-size: 4.6296vw;
        font-family: PingFang SC;
        font-weight: 500;
        color: #fff;
    }
    .content p {
        font-size: 3.3333vw;
        font-family: PingFang SC;
        font-weight: 400;
        color: #000000;
        margin-bottom: 3vw;
    }
    .content p:last-child {
        color: #666666;
    }
    .bottom {
        background: url(../images/about/bottom_m.png) no-repeat center;
        background-size: cover;
        height: 21.2963vw;
    }
}