/* 首页顶部 Banner 轮播 + 右侧通知区域 */
.topSection {
    padding: 30px 0;
    height: 280px;
}

.topSection .shadow {
    box-shadow: 0px 2px 20px 2px rgba(1, 1, 1, 0.10);
    border-radius: 8px;
    overflow: hidden;
}

.topSection .main-content {
    height: 280px;
    display: flex;
    width: 1200px;
}

.topSection .main-content .banner {
    width: 800px;
    height: 280px;
    position: relative;
}

.topSection .banner-swiper {
    width: 800px;
    height: 280px;
}

.topSection .banner-swiper .swiper-slide {
    width: 800px;
    height: 280px;
}

.topSection .banner-swiper .img-box,
.topSection .banner-swiper .img-box img {
    width: 800px;
    height: 280px;
    display: block;
}

.topSection .banner-swiper .img-box img {
    object-fit: cover;
}

.topSection .banner-swiper .swiper-pagination {
    bottom: 12px;
}

.topSection .main-content .notice-box {
    display: flex;
    flex-direction: column;
    margin-left: 15px;
    overflow: hidden;
    width: 385px;
    height: 280px;
}

.topSection .notice-box .my-row {
    display: flex;
    justify-content: space-around;
    width: 100%;
}

.topSection .notice-box .my-row .col {
    flex: 1;
    margin-right: 15px;
}

.topSection .notice-box .my-row .col:last-child {
    margin-right: 0;
}

.topSection .notice-box .my-row .col .content {
    display: flex;
    width: 100%;
    flex-direction: column;
    align-items: center;
}

.topSection .notice-box .content1 {
    display: flex;
}

.topSection .notice-box .content1 .left {
    width: 40px;
    height: 40px;
    line-height: 40px;
    text-align: center;
    margin-right: 15px;
    align-items: center;
    background-color: #DBEAFE;
    border-radius: 8px;
    flex-shrink: 0;
}

.topSection .notice-box .content1 .main {
    font-size: 14px;
    line-height: 20px;
}

.topSection .notice-box .content1 .main .text-muted {
    font-size: 12px;
    color: #777;
}

.topSection .notice-box .my-row .col .name {
    text-align: center;
    color: #555;
    font-size: 14px;
    padding-top: 5px;
}

.topSection .notice-box .card {
    background-color: white;
    width: 100%;
    padding: 10px 15px;
    margin-bottom: 15px;
    border-radius: 8px;
    box-shadow: 0 0 5px rgba(0, 0, 0, 0.1);
    display: flex;
    align-items: center;
    box-sizing: border-box;
}

.topSection .icon-zhiwei2-plus {
    color: #3B82F6;
}

.topSection .icon-boshiweb_bofangliang-plus {
    color: #F97316;
}

.topSection .icon-download2-plus {
    color: #06B6D4;
}

.topSection .icon-resource-letter-plus {
    color: #3B82F6;
}

.topSection .icon-jiaoyukeji-plus {
    color: #3B82F6;
}

/* ============ 短视频公开课卡片列表（M站NormalCard样式，去掉价格行） ============ */
.open-course-list {
    display: flex;
    gap: 20px;
    margin-top: 24px;
    width: 350px;
	flex-direction: column;
}

.open-course-list .open-card {
    display: flex;
    background: #fff;
    text-decoration: none;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.06);
    transition: box-shadow 0.2s;
    width: 350px;
    padding: 10px 15px;
}

.open-course-list .open-card:hover {
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.12);
}

.open-course-list .open-card-img {
    width: 120px;
    height: 90px;
    flex-shrink: 0;
    overflow: hidden;
    border-radius: 5px;
}

.open-course-list .open-card-img img {
    width: 100%;
    height: 100%;
    display: block;
    object-fit: cover;
}

.open-course-list .open-card-content {
    flex: 1;
    padding: 10px 15px;
    display: flex;
    flex-direction: column;
    /* justify-content: center; */
    min-width: 0;
}

.open-course-list .open-card-title {
    font-size: 14px;
    font-weight: 500;
    color: #333;
    line-height: 1.4;
    height: 40px;
    margin-bottom: 8px;
    display: -webkit-box;
    -webkit-box-orient: vertical;
    -webkit-line-clamp: 2;
    overflow: hidden;
    text-overflow: ellipsis;
}

.open-course-list .open-card-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
}

.open-course-list .open-card-tag {
    font-size: 12px;
    color: #666;
    background: #f5f5f5;
    padding: 2px 8px;
    border-radius: 3px;
    line-height: 20px;
}