.decoration_img {
    width: 100%;
    text-align: center;
    margin: 80px auto 20px;
}
.home_decoration_ul{
    width:100%;
    text-align:center;
}
.home_decoration li {
    position: relative;
    width: 24%;
    height: 355px;
    list-style: none;
    margin: 0;
    display: inline-block;
    /*perspective: 300px;*/
}

.picBox {
    position: absolute;
    top: 0;
    right: 0;
    bottom: 0;
    left: 0;
    transform-style: preserve-3d;
    transform-origin: 50% 70% -90px;
    animation: 200ms ease-out 0ms 1 normal forwards;
}

.vr_show img {
    width: 100%;
}
.vr_hide img{
    width: 100%;
}
.vr_show,
.vr_hide {
    position: absolute;
    top: 14px;
    right: 14px;
    bottom: 0;
    left: 0;
}

.vr_hide {
    color: #fff;
    text-align: center;
    line-height: 180px;
    transform: translate3d(0,0,-1px);
    /* 3D空间内移动一个元素的位置 */
}


.in-top .vr_hide,
.out-top .vr_hide {
    transform-origin: 0% 100%;
    transform: translate3d(0, -100%, 0) rotate3d(1,0,0,90deg);
}

.in-top .picBox {
    animation-name: in-top;
    animation-play-state: running;
}

.out-top .picBox {
    animation-name: out-top;
    animation-play-state: running;
}

@keyframes in-top {
    from {
        transform: rotate3d(0,0,0,0deg);
    }

    to {
        transform: rotate3d(-1,0,0,90deg);
    }
}

@keyframes out-top {
    from {
        transform: rotate3d(-1,0,0,90deg);
    }

    to {
        transform: rotate3d(0,0,0,0deg);
    }
}

.in-right .vr_hide,
.out-right .vr_hide {
    transform-origin: 19% 0%;
    transform: translate3d(100%, 0, 0) rotate3d(0,1,0,90deg);
}

.in-right .picBox {
    animation-name: in-right;
    animation-play-state: running;
}

.out-right .picBox {
    animation-name: out-right;
    animation-play-state: running;
}

@keyframes in-right {
    from {
        transform: rotate3d(0,0,0,0deg);
    }

    to {
        transform: rotate3d(0,-1,0,90deg);
    }
}

@keyframes out-right {
    from {
        transform: rotate3d(0,-1,0,90deg);
    }

    to {
        transform: rotate3d(0,0,0,0deg);
    }
}

.in-bottom .vr_hide,
.out-bottom .vr_hide {
    transform-origin: 0% 38%;
    transform: translate3d(0, 100%, 0) rotate3d(-1,0,0,90deg);
}

.in-bottom .picBox {
    animation-name: in-bottom;
    animation-play-state: running;
}

.out-bottom .picBox {
    animation-name: out-bottom;
    animation-play-state: running;
}

@keyframes in-bottom {
    from {
        transform: rotate3d(0,0,0,0deg);
    }

    to {
        transform: rotate3d(1,0,0,90deg);
    }
}

@keyframes out-bottom {
    from {
        transform: rotate3d(1,0,0,90deg);
    }

    to {
        transform: rotate3d(0,0,0,0deg);
    }
}

.in-left .vr_hide,
.out-left .vr_hide {
    transform-origin: 86% 0;
    transform: translate3d(-100%,0,0) rotate3d(0,-1,0,90deg);
}

@keyframes in-left {
    from {
        transform: rotate3d(0,0,0,0deg);
    }

    to {
        transform: rotate3d(0,1,0,90deg);
    }
}

@keyframes out-left {
    from {
        transform: rotate3d(0,1,0,90deg);
    }

    to {
        transform: rotate3d(0,0,0,0deg);
    }
}

.in-left .picBox {
    animation-name: in-left;
    animation-play-state: running;
}

.out-left .picBox {
    animation-name: out-left;
    animation-play-state: running;
}
@media (max-width:768px ) {
    .vr_hide {
    line-height: 80px;
    /* 3D空间内移动一个元素的位置 */
}
    .home_decoration li {
    position: relative;
    width: 24%;
    height: 80px;
    list-style: none;
    margin: 0;
    display: inline-block;
    /*perspective: 300px;*/
}
.in-top .vr_hide,
.out-top .vr_hide {
    transform-origin: 0% 100%;
    transform: translate3d(0, -100%, 0) rotate3d(1,0,0,90deg);
}

.in-left .vr_hide,
.out-left .vr_hide {
    transform-origin: 86% 0;
    transform: translate3d(-100%,0,0) rotate3d(0,-1,0,90deg);
}

.in-bottom .vr_hide,
.out-bottom .vr_hide {
    transform-origin: 0% -60%;
    transform: translate3d(0, 100%, 0) rotate3d(-1,0,0,90deg);
}

.in-right .vr_hide,
.out-right .vr_hide {
    transform-origin: 19% 0%;
    transform: translate3d(100%, 0, 0) rotate3d(0,1,0,90deg);
}
}