body {
    width: 100%;
    height: 100%;
    overflow-x: hidden;
    font-family: PingFang-SC-Regular;
    margin: 0;
    text-align: center;
    background: #fff;
}

.bannerImg {
    width: 100%;
}

.btn {
    width: 9.55rem;
    height: 1.73rem;
    border: 0.05rem solid rgba(16,146,237,1);
    border-radius: 0.2rem;
    color: RGBA(16, 146, 237, 1);
    font-size: 0.8rem;
    font-family: PingFang-SC-Bold;
    font-weight: bold;
    display: block;
    text-align: center;
    line-height: 1.73rem;
    margin: 0.77rem auto;
    text-decoration: none;
}

.phoneImg {
    width: 1rem;
    margin-right: 0.4rem;
}

.wrapper {
    width: 96%;
    margin:0 auto;
}

.nav1 {
    background: url(../img/ite/Iteration-dashed.png) repeat-x left center;
    background-size: 15px;
    background-color:#fff !important;
    padding: 0.55rem 0;
}

    .nav1 span {
        background: #fff;
        padding: 0.25rem 0.85rem;
        border-radius:1.1rem;
        font-size:0.85rem
    }

.on-select {
    background: #00a0e8 !important;
    color: #fff;
}

.month {
    float: left;
    width: 18%;
    text-align: right;
    padding-right: 4%;
    color: #7c7c7c;
    font-size: 0.7rem;
}

.list {
    margin: 1.1rem auto;
}

    .list > li {
        margin:1.1rem auto;
        overflow: hidden;
        clear: both;
        font-size:0.75rem;
    }

.version {
    width: 75%;
    float: left;
}

    .version li {
        background: url('../img/ite/Iteration-point2.png') no-repeat left;
        background-position: 3px;
        background-size: 5px;
        padding-left: 10%;
        margin-bottom: 10px;
        overflow: hidden;
        text-overflow: ellipsis;
        white-space: nowrap;
    }

        .version li:first-child {
            background: url('../img/ite/Iteration-point1.png') no-repeat left;
            background-size: 10px;
            color: #00a0e8;
        }

.list {
    display: none;
     text-align:left;
}

.list-2020 {
    display: block;
    text-align:left;
}