.list {
    width: var(--min-width);
    margin: auto;
    display: flex;
    padding: 20px 0;
}

.list .left {
    width: calc(25% - 80px);
    padding: 40px 80px 40px 0;
    text-align: center;
}

.list .left .list-nav {
    background-color: #f7f7f7;
    position: sticky;
    top: 70px;
}

.list .left .list-nav li {
    border-radius: 4px;
    border-bottom: 4px solid #ffffff;
    color: #333333;
}

.list .left .list-nav li a {
    display: block;
    padding: 15px 0;
}

.list .left .list-nav .on a {
    color: #ffffff;
}

.list .left .list-nav .on, .list .left .list-nav li a:hover {
    background-color: var(--bg-color);
    border-radius: 4px;
    color: #ffffff;
    font-weight: bold;
}

.list .left .list-nav .tit {
    background-color: var(--bg-color);
    border-radius: 4px;
    color: #ffffff;
    font-weight: bold;
    font-size: 28px;
    padding: 30px 0;
    border-bottom: 4px solid #ffffff;
}

.list .right {
    width: 75%;
    padding-top: 10px;
}


.list .right .list-item {
    height: 100px;
    padding: 30px 0;
    border-bottom: 2px solid #f7f7f7;
    display: flex;
}

.list .right .list-item:hover > div:first-child {
    background-color: var(--bg-color);
    color: #ffffff;
    border-radius: 4px;
}

.list .right .list-item:hover .list-tit {
    color: var(--bg-color);
}

.list .right .list-item > div:first-child {
    width: 100px;
    height: 100px;
    background-color: #f7f7f7;
    display: flex;
    justify-content: center;
    align-items: center;
    flex-direction: column;
    border: dashed 1px var(--bg-color);
    border-radius: 4px;
    color: var(--bg-color);
}

.list .right .list-item > div:last-child {
    width: calc(100% - 120px);
    margin-left: 20px;
    height: 100px;
}

.list .right .list-item .list-tit {
    font-weight: bold;
    padding-bottom: 10px;
    word-break: keep-all;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.list .right .list-item .desc {
    font-weight: 200;
    font-size: 16px;
    line-height: 1.8;
    overflow: hidden;
    text-overflow: ellipsis;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
}


.list .right .list-item .list-day {
    font-weight: bold;
    font-size: 30px;
    text-align: center;
}

.video {
    padding-top: 28px;
}

.video-item {
    width: calc(100% / 3.2);
    margin-right: 5px;
    height: 200px;
    background-color: #f7f7f7;
    display: inline-block;
    margin-bottom: 4px;
    border-radius: 4px;
    overflow: hidden;
    position: relative;
}

.video-item .video-img img {
    width: 100%;
    height: 100%;
}

.video-item .video-img {
    top: 0;
    height: 100%;
    position: absolute;
}

.video-item .video-titl {
    position: absolute;
    background-color: rgba(211, 24, 17, 0.76);
    text-align: center;
    width: 100%;
    bottom: 0;
    border-radius: 4px;
    color: #ffffff;
    font-size: 16px;
}

.video-item:nth-child(3n) {
    margin-right: 0 !important;
}