* {
    padding: 0;
    margin: 0;
}


html, body {
    width: 100%;
    height: 100%;
    position: relative;
    overflow: auto;
}

.download_box {
    max-width: 500px;
    background: url("../images/down-bg.png") no-repeat;
}

.img-btn {
    height: 72px;
    cursor: pointer;
}

.logo {
    width: 300px;
    height: 230px;
    margin: 0 auto;
}

.gift {
    position: absolute;
    bottom: 88px;
    left: 50%;
    z-index: 10;
    transform: translate(-50%, 0);
}

.footer {
    width: 100%;
    height: 115px;
    position: absolute;
    bottom: 0;
    z-index: 100;
    background: url("../images/text_bg.png") no-repeat;
    background-size: 100% 100%;
}

.footer-img {
    position: absolute;
    bottom: 35px;
    left: 50%;
    transform: translate(-50%, 0);
}

.popup_box {
    width: 0;
    height: 0;
    position: absolute;
    left: 0;
    top: 0;
    z-index: 200;
    background-color: rgba(0, 0, 0, .8);
    display: none;
}

.android_tip, .google_tip {
    width: 0;
    height: 0;
    display: none;
    position: absolute;
    left: 0;
    top: 0;
    background-color: rgba(0, 0, 0, .8);
}


.arrow_box {
    text-align: right;
    padding: 20px;
}

.tip_box {
    color: #ffffff;
    font-size: 18px;
    padding: 30px;
}

.tip_point {
    color: #E3AE48;
}


.QRcode_box{
    opacity: 0;
    position: absolute;
    left: 0;
    top: 0;
    background-color: rgba(0, 0, 0, .8);
}

.QRcode_imgbox {
    position: absolute;
    left: 50%;
    top: 50%;
    transform: translate(-50%, -50%);
}

.QRcode_tip {
    text-align: center;
    color: #ffffff;
    font-size: 18px;
    padding-top: 50px;
}