.ppt-list {
    width: 100%;
}

    .ppt-list .item {
        position: relative;
        width: 48%;
        padding: 0;
    }

        .ppt-list .item:nth-child(2n) {
            margin-right: 0;
        }

        .ppt-list .item .img-box {
            height: auto;
            width: 100%;
            overflow: auto;
        }

        .ppt-list .item .title {
            height: 0.8rem;
            position: absolute;
            width: 100%;
            bottom: 0;
            left: 0;
            font-size: .32rem;
            background-color: rgba(255, 255, 255, 0.8);
        }

.hot-click {
    background: #FFFFFF;
    padding: .48rem .4rem .48rem .2rem;
    box-shadow: 0px 0px 13px 3px rgb(0 0 0 / 8%);
    border-radius: 10px;
    display: grid;
    grid-template-columns: repeat(2,minmax(155px,1fr));
}

    .hot-click a {
        display: block;
        font-weight: 400;
        color: #313131;
        font-size: .37rem;
        padding-left: .2rem;
        margin-bottom: .63rem;
        overflow: hidden;
        text-overflow: ellipsis;
        white-space: nowrap
    }

        .hot-click a.col-3,
        .hot-click a.col-4,
        .hot-click a.col-9 {
            color: #357CE8;
        }

        .hot-click a:nth-last-child(1), .hot-click a:nth-last-child(2) {
            margin-bottom: 0
        }

.preparation_pop {
    position: fixed;
    width: 8.67rem;
    height: 100%;
    right: -8.67rem;
    background-color: #fff;
    top: 0;
    z-index: 100;
    transition: all .3s ease;
    -webkit-transition: all .3s ease; /* Safari */
}

.preparation_pop .pre_cont {
    padding: 0 .33rem;
    max-height: 90%;
    overflow-y: scroll;
}

.preparation_pop .pre_cont::-webkit-scrollbar {
    display: none;
}

.preparation_pop .pre_cont .item {
    margin-top: .4rem;
    border-bottom: 0;
    margin-bottom: 0;
    padding-left: 0;
}

.preparation_pop .pre_cont .item .item_title {
    font-size: 0.37rem;
    color: #333333;
    margin-bottom: .32rem;
}

.preparation_pop .pre_cont .item .item_cont {
    display: flex;
    flex-wrap: wrap;
}

.preparation_pop .pre_cont .item .item_cont p {
    height: 0.75rem;
    border-radius: 0.03rem;
    margin-right: .27rem;
    margin-bottom: .32rem;
    font-size: 0.32rem;
    color: #333333;
    padding: 0 .33rem;
    border: 1px solid #999999;
    line-height: .74rem;
}

.preparation_pop .pre_cont .item .item_cont p.active {
    color: white;
    background-color: #357CE8;
    border: 1px solid #357CE8;
}

.preparation_pop .pre_cont > div a {
    display: block;
    width: auto;
    height: auto;
    background: none;
    border: 0;
    border-radius: 0;
    font-size: 0.32rem;
    color: #333;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 0;
    margin-right: 0;
}

.preparation_pop .pre_btn {
    position: absolute;
    bottom: 0;
    height: 1.07rem;
    display: flex;
    width: 100%;
}

.preparation_pop .pre_btn > div {
    flex: 1;
    display: flex;
    justify-content: center;
    align-items: center;
    height: 1.07rem;
}

.preparation_pop .pre_btn > div span {
    font-size: 0.37rem;
    color: #333333;
}

.preparation_pop .pre_btn .repit {
    background: #ebebeb;
}

.preparation_pop .pre_btn .confim {
    background: #357CE8;
}

.preparation_pop .pre_btn .confim span {
    color: white;
}