.page {
    width: 100%;
    height: 100vh;
    position: fixed;
    top: 0;
    left: 0;
    /* background: #cf242a; */
    background-color: #b0273b;
}

.page .index_bg {
    display: block;
    height: 100%;
    width: auto;
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
}

.page .mb_index_bg {
    display: none;
}

.page-a {
    width: 150px;
    height: auto;
    position: absolute;
    top: 45%;
    left: 50%;
    transform: translate(-50%, -50%);
    animation: mythree 2s 1;
    -webkit-animation: mythree 2s 1;
}

@keyframes mythree {
    0% {
        width: 0px;
    }

    100% {
        width: 150px;
        /*
			height: 146px;*/
    }
}

.page-b {
    width: 100%;
    height: auto;
    position: absolute;
    top: 75%;
    text-align: center;
}

.page-b img {
    width: auto;
    height: auto;
    display: inline-block;
}

.page a {
    width: auto;
    height: auto;
    display: inline-block;
    position: absolute;
    top: 85%;
    left: 49%;
    transform: translate(-50%, -50%);
}

.page a img {
    width: 30px;
    height: auto;
    animation: move 1s infinite linear;
    -webkit-animation: move 1s infinite linear;
}

@keyframes move {
    0% {
        margin-left: 0;
    }

    50% {
        margin-left: 20px;
    }

    100% {
        margin-left: 0;
    }
}

@media (max-width: 1200px) {
    .page-a {
        width: 138px;
        height: auto;
        position: absolute;
        top: 45%;
        transform: translate(-50%, -50%);
        animation: mythree 2s 1;
        -webkit-animation: mythree 2s 1;
    }

    @keyframes mythree {
        0% {
            width: 0px;
        }

        100% {
            width: 138px;
        }
    }

    .page-b img {
        width: 229px;
        height: 22px;
    }
}

@media (max-width: 991px) {
    .page-a {
        width: 138px;
        height: auto;
        position: absolute;
        top: 45%;
        transform: translate(-50%, -50%);
        animation: mythree 2s 1;
        -webkit-animation: mythree 2s 1;
    }

    @keyframes mythree {
        0% {
            width: 0px;
        }

        100% {
            width: 138px;
        }
    }

    .page-b img {
        width: 229px;
        height: 22px;
    }
}

@media (max-width: 767px) {
    .page-a {
        width: 84px;
        height: auto;
        position: absolute;
        top: 45%;
        left: 52%;
        transform: translate(-50%, -50%);
        animation: mythree 2s 1;
        -webkit-animation: mythree 2s 1;
    }

    @keyframes mythree {
        0% {
            width: 0px;
        }

        100% {
            width: 84px;
        }
    }

    .page-b {
        width: 100%;
        height: auto;
        position: absolute;
        top: 72%;
        text-align: center;
    }

    .page-b img {
        width: 153px;
        height: auto;
    }

    .page a {
        width: auto;
        height: auto;
        display: inline-block;
        position: absolute;
        top: 80%;
        left: 47%;
        transform: translate(-50%, -50%);
    }

    .page a img {
        width: 20px;
    }

    .page .index_bg {
        display: none;
    }

    .page .mb_index_bg {
        display: block;
        width: 100%;
        position: absolute;
        top: 50%;
        left: 50%;
        transform: translateX(-50%) translateY(-50%);
    }
}