main {
    width: var(--width);
    margin: 0 auto 20px;
    background-color: #fff;
    border: 1px solid #ddd;
    border-radius: 5px;
    padding: 15px 35px;
}

main .pc-show h3 {
    font-size: 22px;
    border-bottom: 1px dashed #ccc;
    padding-bottom: 10px;
    color: #115385;
    margin: 0 10px 18px;
}

main .pc-show .big-box {
    display: flex;
    flex-direction: column;
    row-gap: 30px;
}

main .pc-show .big-box>.items {
    border: 1px solid #ccc;
    border-radius: 5px;
    padding: 15px 35px 35px;
    display: flex;
    column-gap: 50px;
}

.big-box>.items .img-box {
    width: 22%;
}

.big-box>.items .img-box::before {
    padding-top: 74%;
}

.big-box .items .text {
    flex: 1;
    display: flex;
    flex-direction: column;
    row-gap: 10px;
}

.big-box .items .text .img-box {
    width: 5%;
}

.big-box .items .text .img-box::before {
    padding-top: 100%;
}


.big-box .items .text .top {
    display: flex;
    column-gap: 20px;
    font-size: 18px;
    color: #337ab7;
    font-weight: 600;
    align-items: center;
}

.big-box .items .text .cen {
    color: #115385;
    font-size: 14px;
}

.big-box .items .text .bot {
    display: flex;
    column-gap: 10px;
}

.big-box .items .text .bot b {
    padding: 4px 11px;
    background-color: #f0ad4e;
    font-size: 18px;
    font-weight: 500;
    color: #fff;
    border-radius: 5px;
}

.big-box .items .text .bot b:nth-child(2) {
    background-color: #5bc0de;
}

@media screen and (min-width:770px) {
    .pc-show {
        display: block;
    }

    .pe_show {
        display: none;
    }


}

@media screen and (max-width:769px) {
    .pc-show {
        display: none;
    }

    .pe_show {
        display: block;
    }

    main {
        width: auto;
        margin: 0 3px;
        padding: 15px 5px;
    }

    main .pe_show h3 {
        margin-bottom: .96rem;
        font-size: 1.408rem;
    }

    .waterfall {
        column-count: 2;
        column-gap: .64rem;
        width: 100%;
    }

    .waterfall .item {
        display: inline-block;
        margin-bottom: .512rem;
        width: 100%;
        break-inside: avoid;
        border-radius: .384rem;
        background-color: #fff;
        border-radius: 8px;
        overflow: hidden;
        box-shadow: 0 0 10px #00000052;
    }

    .waterfall .item img {
        width: 100%;
        height: auto;
    }

    .waterfall .item .text {
        padding: .512rem;
        display: flex;
        flex-direction: column;
        row-gap: .384rem;
    }

    .waterfall .item .text .item-name {
        font-size: .896rem;
        font-weight: 600;
        color: #000;
    }

    .waterfall .item .text .item-txt {
        font-size: .768rem;
        color: gray;
        display: -webkit-box;
        overflow: hidden;
        text-overflow: ellipsis;
        -webkit-box-orient: vertical;
        -webkit-line-clamp: 2;
    }

    .waterfall .item .text .type {
        color: #000;
        display: flex;
        align-items: center;
        column-gap: .32rem;
        font-size: .96rem;
        font-weight: 600;
    }

    .waterfall .item .text .type .iconfont {
        color: gold;
        font-size: 1.088rem;
    }

}