.sec1 {
    padding-top: 5.9375vw;
    padding-bottom: 6.77vw;
}

.sec1 .downclassify {
    position: relative;
    display: flex;
    justify-content: center;
}

.downclassify:after {
    content: '';
    position: absolute;
    width: 100%;
    height: 1px;
    background-color: #e0e0e0;
    left: 0;
    bottom: 0;
}

.classify-item {
    flex: none;
    padding: 0 2.8125vw;
    color: #333;
    position: relative;
    line-height: 1.5;
    padding-bottom: 1.40625vw;
}

.classify-item:after {
    content: '';
    position: absolute;
    left: 50%;
    bottom: 0;
    transform: translateX(-50%);
    height: 4px;
    background-color: var(--red);
    width: 0;
    transition: all .5s;
}

.classify-item.active:after {
    width: 100%;
}

.downlist {
    display: flex;
    flex-wrap: wrap;
    margin-top: 3.6458vw;
    justify-content: space-between;

}

.down-item {
    flex: 0 0 49.3%;
    display: flex;
    padding: 1.33vw 1.5625vw;
    border-radius: 5px;
    background-color: #f5f5f5;
    align-items: center;
    margin-bottom: 1.4%;
}

.down-item .lf {
    flex: 1;
    color: #333;
    line-height: 1.5;
}

.down-item .rg {
    flex: none;
    margin-left: 5%;
    display: flex;
    align-items: center;
}

.down-item .rg a {
    margin-left: 1vw;
    display: flex;
    align-items: center;
}

.down-item .rg a svg {
    margin-left: 6px;
}

.sec1 .p_page {
    margin-top: 3.6458vw;
}

@media screen and (max-width:768px) {
    .sec1 .downclassify {
        justify-content: flex-start;
        overflow-x: auto;
    }

    .down-item {
        flex: 0 0 100%;
        margin-bottom: 10px;
    }

    .sec1 {
        padding: 30px 0;
    }

    .downlist {
        margin-top: 20px;
    }
}