/*teach-nav*/
.teach-nav{
    padding: 0.7rem 0.4rem 0;
    display: flex;
    flex-direction: row;
    justify-content: space-between;
    align-items: center;
}
.teach-item{
    width: 3.18rem;
    height: 1.43rem;
}
.teach-item div{
    width: 3.18rem;
    height: 1.43rem;
    background-size: 100%;
    background-repeat: no-repeat;
}
.teach-item-icon1{
    background-image: url("http://cache.xaangel.net/teach-item1.png");
}
.active .teach-item-icon1{
    background-image: url("http://cache.xaangel.net/teach-item1_cheked.png");
}
.teach-item-icon2{
    background-image: url("http://cache.xaangel.net/teach-item2.png");
}
.active .teach-item-icon2{
    background-image: url("http://cache.xaangel.net/teach-item2_cheked.png");
}
.teach-item-icon3{
    background-image: url("http://cache.xaangel.net/teach-item3.png");
}
.active .teach-item-icon3{
    background-image: url("http://cache.xaangel.net/teach-item3_cheked.png");
}
.course-content{
    padding: 0.65rem 0.4rem 0;
}
.course-item{
    padding: 0.56rem 0.45rem;
    background-color: #ffffff;
    box-shadow: 0rem 0.07rem 0.167rem 0.013rem
    rgba(42, 88, 89, 0.33);
    border-radius: 0.3rem;
    margin-top: 0.25rem;
    display: flex;
    flex-direction: row;
    justify-content: space-between;
    align-items: center;
}
.course-item:first-child{
    margin-top: 0;
}
.course-logo{
    width: 2.38rem;
    height: 2.38rem;
    background-color: #bcbcbc;
    border-radius: 0.1rem;
    object-fit: cover;
}
.course-right{
    width: calc(100% - 0.45rem);
    padding-left: 0.45rem;
    display: flex;
    flex-direction: column;
    justify-content: space-around;
}
.course-title{
    width: 100%;
    font-family: NotoSansHans-Medium;
    font-size: 0.36rem;
    font-weight: normal;
    font-stretch: normal;
    letter-spacing: 0rem;
    color: #2c3e50;
    opacity: 0.8;
    text-overflow: -o-ellipsis-lastline;
    overflow: hidden;
    text-overflow: ellipsis;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    line-clamp: 2;
    -webkit-box-orient: vertical;
}
.course-footer{
    display: flex;
    flex-direction: row;
    justify-content: space-between;
    align-items: center;
    font-family: NotoSansHans-DemiLight;
    font-size: 0.308rem;
    font-weight: normal;
    font-stretch: normal;
    line-height: 0.3rem;
    letter-spacing: 0rem;
    color: #949494;
    opacity: 0.7;
    margin-top: 0.9rem;
}
.course-view{
    display: flex;
    flex-direction: row;
    align-items: center;
}
.course-view-icon{
    width: 0.4rem;
}
.course-view-num{
    margin-left: 0.16rem;
}