body {
    font-size: 16px;
    background-color: #f5f6f9;
}

.container {
    width: 7.5rem;
    overflow: hidden;
}

.box {
    width: 7.5rem;
}


/* 返回 */

.return_img {
    width: .36rem;
    height: .38rem;
    position: fixed;
    left: .4rem;
    top: .5rem;
}


/* 头部 */

.header {
    width: 7.5rem;
    font-size: .36rem;
    height: 1.45rem;
    line-height: 1.45rem;
    text-align: center;
    color: #333333;
}


/* 主体 */

.main {
    width: 6.94rem;
    margin: 0 auto;
}


/* 各类活动公告 */

.announcement_activity {
    width: 100%;
    height: 1.64rem;
    background-color: #ffffff;
    padding: .4rem .3rem .4rem .3rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: .3rem;
}

.activity_name {
    font-size: .32rem;
    color: #333333;
    margin-bottom: .3rem;
}

.activity_intro {
    width: 5rem;
    font-size: .24rem;
    color: #999999;
    overflow: hidden;
    white-space: nowrap;
    text-overflow: ellipsis;
}

.announcement_activity_two img {
    width: .5rem;
    height: .5rem;
}