.indexTopBk {
    transition: 0.7s;
    background-size: 100% auto;
    background-position: center;
    height: 580px;
}

.indexTopBk:hover {
    background-size: 105% auto;
}


.indexTitle {
    position: absolute;
    text-shadow: 4px 4px 2px #000;
    top: 124px;
    left: 130px;
    font-size: 40px;
    color: #fff;
}

.indexIntro {
    position: absolute;
    text-shadow: 2px 2px 0px #000;
    top: 250px;
    left: 130px;
    font-size: 24px;
    color: #fff;
    line-height: 50px;
}

@media screen and (max-width: 880px) {
    .indexTopBk {
        background-size:  auto 100%;
    }
    .indexTopBk:hover {
        background-size:  auto 105%;
    }

    .indexTitle {
        left: 0px;
        right: 0px;
        text-align: center;
        font-size: 30px;
    }

    .indexIntro {
        font-size: 20px;
        top: 200px;
        left: 0px;
        right: 0px;
        padding: 0 45px 0 45px;
    }
}