.introduction-container{
    position: relative;
}

.introduction-model-1{
    position: relative;
    display: flex;
    height: 400px;
    width: 100%;
}
.introduction-model-1 .introduction-content-wrapper {
    position: relative;
    margin: 0 auto;
}

.introduction-model-1 .introduction-title{
    position: absolute;
    top: 7.07em;
    left: 39.142em;
    z-index: 9;
    width: 48.571em;
    height: 2.285em;
    line-height: 2.285em;

}
.introduction-model-1 .introduction-title span{
    display: inline-block;
    font-size: 1.714em;
    color: #FFFFFF;
    width: 100%;
    text-overflow:ellipsis;
    overflow:hidden;
    white-space:nowrap;
}
.introduction-model-1 .introduction-content{
    position: absolute;
    top: 11.142em;
    left: 39.142em;
    right: 0;
    z-index: 9;
    height: 7.8em;
    color: #FFFFFF;

}
.introduction-model-1 .introduction-content span{
    word-break:normal;
    width:auto;
    display:block;
    white-space:pre-wrap;
    line-height: 2em;
    opacity: 0.8;
    overflow: hidden;
}

.introduction-model-1 .introduction-detail{
    position: absolute;
    top: 20.142em;
    left: 39.142em;
    color: #FFFFFF;
    z-index: 9;
    align-items:center;
    display:-webkit-flex;
    transition: all .3s linear;
}

.introduction-model-1 .introduction-detail:hover{
    transform: translate3d(1.9em, 0, 0);
}

.introduction-model-1 .introduction-detail i{
    width: 1.414em;
    height: 1.414em;
    background: url("/local-res-s3/qingshuxuetang.com/v9_1/setting/introduction/right-arrow.png") no-repeat center;
    background-size: cover;
    display: inline-block;
    float: right;
}

.introduction-model-1 .introduction-background{
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 28.571em;
    opacity: 0.8;
    z-index: 3;
    background: url("/local-res-s3/qingshuxuetang.com/v9_1/setting/introduction/blue-mask.png") center center / cover no-repeat;
    display: inline-block;
}
.introduction-model-1 .introduction-img{
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 28.571em;
    object-fit: cover;
}


.introduction-model-2{
    position: relative;
    display: flex;
    height: 460px;
    width: 100%;
}
.introduction-model-2 .introduction-background{
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0.8;
    background: url("/local-res-s3/qingshuxuetang.com/v9_1/setting/introduction/red-background.png") no-repeat;
    background-size: cover;
    display: inline-block;
}
.introduction-model-2 .introduction-card{
    position: absolute;
    top: 40px;
    left: 50%;
    transform: translate(-50%, 0);
    width: 84.286em;
    height: 380px;
    z-index: 9;
}
.introduction-model-2 .introduction-card-introduction{
    position: absolute;
    left: 0;
    height: 100%;
    width: 42.856em;
    z-index: 3;
}

.introduction-model-2 .introduction-title{
    position: absolute;
    top: 68px;
    left: 56px;
    right: 56px;
    z-index: 9;
    height: 27px;
    line-height: 27px;
}
.introduction-model-2 .introduction-title span{
    display: inline-block;
    width: 100%;
    height: 100%;
    font-size: 20px;
    color: #FFFFFF;
    text-overflow:ellipsis;
    overflow:hidden;
    white-space:nowrap;
}
.introduction-model-2 .introduction-card-introduction-splitter{
    position: absolute;
    top: 127px;
    left: 56px;
    right: 56px;
    z-index: 9;
    height: 1px;
}
.introduction-model-2 .introduction-content{
    position: absolute;
    top: 160px;
    left: 56px;
    right: 56px;
    z-index: 9;
    height: 8.24em;
    color: #FFFFFF;
    opacity: 0.8;
}
.introduction-model-2 .introduction-content span{
    font-size: 14px;
    word-break:normal;
    width:auto;
    display:block;
    white-space:pre-wrap;
    line-height: 2.06em;
    opacity: 0.8;

}
.introduction-model-2 .introduction-detail{
    position: absolute;
    top: 294px;
    left: 56px;
    color: #FFFFFF;
    z-index: 9;
    align-items:center;
    display:-webkit-flex;
    transition: all .3s linear;
}
.introduction-model-2 .introduction-detail:hover{
    transform: translate3d(1.9em, 0, 0);
}
.introduction-model-2 .introduction-detail i{
    width: 1.414em;
    height: 1.414em;
    background: url("/local-res-s3/qingshuxuetang.com/v9_1/setting/introduction/right-arrow.png") no-repeat center;
    background-size: cover;
    display: inline-block;
    float: right;
    margin-left: 4px;
}
.introduction-model-2 .introduction-card-introduction-background{
    position: absolute;
    bottom: 0;
    left: 0;
    width: 43.771em;
    height: 100%;
}
.introduction-model-2 .introduction-card-img{
    position: absolute;
    right: 0;
    width: 41.428em;
    height: 100%;
    overflow: hidden;
}
.introduction-model-2 .introduction-card-img img{
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 100%;
    transition: .2s ease-in-out;
    -webkit-transition: .2s ease-in-out;
    -moz-transition: .2s ease-in-out;
    -o-transition: .2s ease-in-out;
}
.introduction-model-2 .introduction-card-img:hover img{
    transform: scale(1.1);
    -webkit-transform: scale(1.1);
    -moz-transform: scale(1.1);
    -o-transform: scale(1.1);
    -ms-transform: scale(1.1);
}



.introduction-model-3{
    position: relative;
    display: flex;
    height: 540px;
    width: 100%;
    background: #F5F8FA;
}
.introduction-model-3 .introduction-background{
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 28.571em;
    opacity: 0.8;
    background: url("/local-res-s3/qingshuxuetang.com/v9_1/setting/introduction/green-background.png") no-repeat;
    background-size: cover;
    display: inline-block;
}
.introduction-model-3 .introduction-content-wrapper {
    position: relative;
    margin: 0 auto;
}
.introduction-model-3 .introduction-card-img{
    position: absolute;
    top: 5.714em;
    left: 0;
    width: 50em;
    height: 32.857em;
    z-index: 3;
    overflow: hidden;
}
.introduction-model-3 .introduction-card-img img{
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 100%;
    transition: .2s ease-in-out;
    -webkit-transition: .2s ease-in-out;
    -moz-transition: .2s ease-in-out;
    -o-transition: .2s ease-in-out;
}
.introduction-model-3 .introduction-card-img:hover img{
    transform: scale(1.1);
    -webkit-transform: scale(1.1);
    -moz-transform: scale(1.1);
    -o-transform: scale(1.1);
    -ms-transform: scale(1.1);
}

.introduction-model-3 .introduction-card-introduction{
    position: absolute;
    top: 8.285em;
    right: 0;
    width: 37.142em;
    height: 27.714em;
    z-index: 9;
}

.introduction-model-3 .introduction-title{
    position: absolute;
    top: 76px;
    left: 56px;
    right: 56px;
    z-index: 9;
    height: 2.285em;
    line-height: 2.285em;

}
.introduction-model-3 .introduction-title span{
    width: 100%;
    height: 100%;
    display: inline-block;
    font-size: 20px;
    color: #FFFFFF;
    text-overflow:ellipsis;
    overflow:hidden;
    white-space:nowrap;
}
.introduction-model-3 .introduction-content{
    position: absolute;
    top: 136px;
    left: 56px;
    right: 56px;
    z-index: 9;
    height: 120px;
    line-height: 24px;
    color: #FFFFFF;
    opacity: 0.8;
}
.introduction-model-3 .introduction-content span{
    width:auto;
    display:block;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space:pre-wrap;
}
.introduction-model-3 .introduction-detail{
    position: absolute;
    bottom: 74px;
    left: 27.142em;
    color: #FFFFFF;
    z-index: 9;
    align-items:center;
    display:-webkit-flex;
}
.introduction-model-3 .introduction-detail i{
    width: 20px;
    height: 4px;
    background: url("/local-res-s3/qingshuxuetang.com/v9_1/setting/introduction/ellipsis.png") no-repeat center;
    background-size: cover;
    display: inline-block;
    float: left;
    margin-left: 4px;
}
.introduction-model-3 .introduction-card-introduction-background{
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 100%;
}



.introduction-mobile-model-1 .introduction-title{
    position: absolute;
    top: 3.8em;
    left: .4em;
    right: .4em;
    z-index: 9;
    height: .46em;
    line-height: .46em;
    text-overflow: ellipsis;
    overflow: hidden;
    white-space: nowrap;
}
.introduction-mobile-model-1 .introduction-title span{
    font-size: .34em;
    color: #FFFFFF;
}
.introduction-mobile-model-1 .introduction-content{
    position: absolute;
    top: 4.3em;
    left: .4em;
    right: .4em;
    z-index: 9;
    height: 1.72em;
    line-height: .43em;
    color: #FFFFFF;
    white-space: normal;
    display: -webkit-box;
    -webkit-box-orient: vertical;
    -webkit-line-clamp: 4;
    overflow: hidden;
}
.introduction-mobile-model-1 .introduction-content span{
    display: block;
    font-size: .26em;
    color: #FFFFFF;
    opacity: 0.8;
}

.introduction-mobile-model-1 .introduction-detail{
    position: absolute;
    top: 6.3em;
    left: .4em;
    height: .35em;
    color: #FFFFFF;
    z-index: 9;
    align-items: center;
    display: -webkit-flex;

}
.introduction-mobile-model-1 .introduction-detail span{
    font-size: .26em;
    display: inline-block;
}


.introduction-mobile-model-1 .introduction-detail i{
    display: inline-block;
    width: .32em;
    height: .32em;
    background: url("/local-res-s3/qingshuxuetang.com/v9_1/setting/introduction/right-arrow.png") no-repeat center;
    background-size: cover;
    float: right;
}

.introduction-mobile-model-1 .introduction-background{
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0.8;
    z-index: 3;
    background: url("/local-res-s3/qingshuxuetang.com/v9_1/setting/introduction/blue-mask-mobile.png") no-repeat;
    background-size: cover;
    display: inline-block;
}
.introduction-mobile-model-1 .introduction-img{
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 100%;
}

.introduction-mobile-model-2 .introduction-card{
    height: 100%;
    width: 100%;
    margin: 0 auto;
}
.introduction-mobile-model-2 .introduction-card-img{
    position: absolute;
    top: 0;
    width: 100%;
    height: 4.91em;
}
.introduction-mobile-model-2 .introduction-card-img img{
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
}
.introduction-mobile-model-2 .introduction-card-introduction{
    position: absolute;
    bottom: 0;
    width: 100%;
    height: 4.82em;
    z-index: 3;
}

.introduction-mobile-model-2 .introduction-title{
    position: absolute;
    top: .68em;
    left: .4em;
    right: .4em;
    z-index: 9;
    height: .46em;
    line-height: .46em;
    text-overflow:ellipsis;
    overflow:hidden;
    white-space:nowrap;
    color: #FFFFFF;
}
.introduction-mobile-model-2 .introduction-title span{
    font-size: .34em;
    color: #FFFFFF;
}
.introduction-mobile-model-2 .introduction-card-introduction-splitter{
    position: absolute;
    top: 1.46em;
    left: .4em;
    right: .4em;
    z-index: 9;
    height: 1px;
    opacity: 0.8;
}
.introduction-mobile-model-2 .introduction-content{
    position: absolute;
    top: 1.8em;
    left: .4em;
    right: .4em;
    z-index: 9;
    height: 1.6em;
    line-height: .4em;
    white-space: normal;
    display: -webkit-box;
    -webkit-box-orient: vertical;
    -webkit-line-clamp: 4;
    overflow: hidden;
}
.introduction-mobile-model-2 .introduction-content span{
    display: block;
    font-size: .26em;
    color: #FFFFFF;
    opacity: 0.8;
}
.introduction-mobile-model-2 .introduction-detail{
    position: absolute;
    top: 3.72em;
    left: .4em;
    height: .35em;
    color: #FFFFFF;
    z-index: 9;
    align-items: center;
    display: -webkit-flex;
}
.introduction-mobile-model-2 .introduction-detail span{
    font-size: .26em;
    display: inline-block;
}

.introduction-mobile-model-2 .introduction-detail i{
    width: .32em;
    height: .32em;
    background: url("/local-res-s3/qingshuxuetang.com/v9_1/setting/introduction/right-arrow.png") no-repeat center;
    background-size: cover;
    display: inline-block;
    float: right;
    margin-left: 4px;
}
.introduction-mobile-model-2 .introduction-card-introduction-background{
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 5.23em;
}


.introduction-mobile-model-3 .introduction-card{
    height: 100%;
    width: 100%;
    margin: 0 auto;
}
.introduction-mobile-model-3 .introduction-card-img{
    position: absolute;
    top: 0;
    width: 100%;
    height: 48%;
    overflow: hidden;
}
.introduction-mobile-model-3 .introduction-card-img img{
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
}
.introduction-mobile-model-3 .introduction-card-introduction{
    position: absolute;
    bottom: 0;
    width: 100%;
    height: 52%;
    z-index: 3;
}
.introduction-mobile-model-3 .introduction-title{
    position: absolute;
    top: .68em;
    left: .4em;
    right: .4em;
    z-index: 9;
    height: .46em;
    line-height: .46em;
    text-overflow:ellipsis;
    overflow:hidden;
    white-space:nowrap;
    color: #FFFFFF;
}
.introduction-mobile-model-3 .introduction-title span{
    font-size: .34em;
    color: #FFFFFF;
}
.introduction-mobile-model-3 .introduction-card-introduction-splitter{
    position: absolute;
    top: 1.46em;
    left: .4em;
    right: .4em;
    z-index: 9;
    height: 1px;
    opacity: 0.8;
}
.introduction-mobile-model-3 .introduction-content{
    position: absolute;
    top: 1.8em;
    left: .4em;
    right: .4em;
    z-index: 9;
    height: 1.6em;
    line-height: .4em;
}
.introduction-mobile-model-3 .introduction-content span{
    display: block;
    font-size: .26em;
    color: #FFFFFF;
    opacity: 0.8;
    white-space: normal;
    display: -webkit-box;
    -webkit-box-orient: vertical;
    -webkit-line-clamp: 4;
    overflow: hidden;
}
.introduction-mobile-model-3 .introduction-detail{
    position: absolute;
    top: 3.72em;
    right: .4em;
    height: .35em;
    color: #FFFFFF;
    z-index: 9;
}

.introduction-mobile-model-3 .introduction-detail span{
    font-size: .26em;
    display: inline-block;
    align-items:center;
    display:-webkit-flex;
}
.introduction-mobile-model-3 .introduction-detail span i{
    display: inline-block;
    width: 1em;
    height: .2em;
    background: url("/local-res-s3/qingshuxuetang.com/v9_1/setting/introduction/ellipsis.png") no-repeat center;
    background-size: cover;
    float: left;
    margin-left: .2em;
}

.introduction-mobile-model-3 .introduction-card-introduction-background{
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 100%;
}