/* 只在首页加弹窗样式 */
.guanbi {
    position: fixed;
    width: 100%;
    height: 100%;
    top: 0;
    left: 0;
    z-index: 99;
    background: rgba(0, 0, 0, 0.2);
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
}

    .guanbi .gbox {
        position: absolute;
        top: 50%;
        opacity: 0;
        left: 50%;
        transform: translate(-50%,-50%)  scale(0.5);
        -webkit-transform: translate(-50%,-50%)  scale(0.5);
        background: #fff;
        padding: 20px 40px;
        text-align: center;
    }

        .guanbi .gbox .gtt {
            margin:  0;
            line-height: 1.8;
            color: #000;
        }

    .guanbi.act {
        visibility: visible;
        pointer-events: visible;
        opacity: 1;
    }

        .guanbi.act .gbox {
            transform: translate(-50%,-50%)  scale(1);
            -webkit-transform: translate(-50%,-50%)  scale(1);
            opacity: 1;
            transition-delay: .3s;
            -webkit-transition-delay: .3s;
        }