.teaching {
    width: 100%;
}

.teaching-list {
    padding: 5vw;
}

.teaching .list-item {
    display: flex;
    justify-content: space-between;
    padding-bottom: 20px;
    border-bottom: 1px solid #ECECEC;
    margin-bottom: 20px;
}

.teaching .item-left {
    width: 26vw;
    height: 17vw;
    border-radius: 2vw;
    margin-right: 2vw;
}
.teaching .item-left img{
    border-radius: 2vw;
}

.teaching .item-right {
    width: 60vw;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}
.teaching .right-top {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
}
.teaching .right-top >span {
    font-size: 4vw;
}
.teaching .right-top a {
    display: inline-block;
    padding: 0 2vw;
    margin-bottom: -0.5vw;
    color: #2C709F;
    font-size: 3.2vw;
    line-height: 5vw;
    border: 1px solid #D7F1FF;
    border-radius: 5vw;
}
.teaching .right-top a:active {
    background-color: #eee;
}
.teaching .right-con {
    display: -webkit-box;
    display: -moz-box;
    text-overflow: -o-ellipsis-lastline;
    text-overflow: ellipsis;
    overflow: hidden;
    /*控制文本行数，多少行以后开始省略号 */
    -webkit-line-clamp: 2; 
    -webkit-box-orient: vertical;
    color: #7C7C7C;
    font-size: 3.8vw;
    line-height: 6vw;
    margin-top: 1vw;
}