.afloor{
    padding: 80px 0;
}
.floor_title{
    font-size: 36px;
    color: #000000;
    line-height: 50px;
    text-align: center;
    font-weight: 600;
    margin-bottom: 60px;
}
.floor_title_s{
    color:#757575;
    font-size:20px;
    font-weight: normal;
}
.floor-lightgray{
    background: #FAFCFF;
}
.floor-lightblue{
    background: #EDF5FD;
}
/* banner */
.banner{
    background: linear-gradient( 180deg, #1C81FA 0%, #36B9F8 100%);
    padding: 101px 0 90px;
}
/* 关于课堂街 */
.floor1-box{
    background: #FFFFFF;
    box-shadow: 0px 4px 20px 0px rgba(128,162,235,0.12);
}
.floor1_top{
    display: flex;
    flex-direction: row;
    justify-content: space-between;
}
.floor1_top_l{
    padding: 50px 74px 0 40px;
}
.floor1_top_l h2{
    font-weight: normal;
    font-size: 36px;
    color: #000000;
    font-weight: 600;
    line-height: 50px;
}
.floor1_top__con{
    margin-top: 26px;
}
.floor1_top__con p{
    font-size: 18px;
    color: #757575;
    line-height: 30px;
    text-align: justified;
    margin-bottom:15px;
}
.floor1_top__con p:last-child{
    margin-bottom: 0;
}
.floor1_top_r{
    display: block;
    width: 502px;
    height: 400px;
}
.floor1_bottom{
    padding: 60px 0;
    display: flex;
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
}
.floor1_bottom_item{
    width: 33.33%;
}
.floor1_bottom_item_i{
    margin: 0 40px;
    background: #F8FBFF;
    border-radius: 30px;
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 30px 0;
}
.floor1_bottom_item_img{
    display: block;
    width: 120px;
    height: 107px;
}
.floor1_bottom_item_tit{
    font-size: 40px;
    color: #333333;
    line-height: 50px;
    margin-top: 16px;
    font-weight: 600;
}
.floor1_bottom_item_intro{
    font-size: 20px;
    color: #757575;
    line-height: 28px;
    margin-top: 10px;
}
/* 荣誉资质 */
.floor2{
    padding-bottom: 20px;
}
.floor2_list{
    display: flex;
    flex-direction: row;
    flex-wrap: wrap;
    margin-right: -19px;
}
.floor2_item{
    width: 25%;
}
.floor2_item_i{
    margin-right: 19px;
    margin-bottom: 60px;
    display: flex;
    flex-direction: column;
}
.floor2_item_img{
    display: block;
    width: 100%;
}
.floor2_item_tit{
    line-height: 74px;
    background: #213E65;
    text-align: center;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    color: #FFFFFF;
    font-size: 22px;
}
/* 发展历程 */
.floor3 .floor_title{
    margin-bottom: 19px;
}
.floor3_img{
    width: 100%;
    display: block;
}
/* 我们践行的价值理念 */
.floor4_list{
    display: flex;
    flex-direction: row;
    justify-content: space-between;
    margin-right: -32px;
}
.floor4_item{
    width: 50%;
}
.floor4_item_i{
    margin-right: 32px;
    padding: 50px 30px 60px;
    background: linear-gradient( 180deg, #F4F8FF 0%, #E3F0FF 100%);
    border-radius: 30px;
}
.floor4_item_i h2{
    font-size: 32px;
    color: #1C81FA;
    line-height: 45px;
    margin-left: 8px;
}
.floor4_item_i p{
    font-size: 26px;
    color: #1B3256;
    margin-top: 36px;
    line-height: 36px;
}
@media screen and (max-width: 1024px){

}
@media screen and (max-width:768px){

}
@media (max-width: 480px){
    .afloor{
        padding: 32px 0;
    }
    .floor_title{
        line-height: 30px;
        font-size: 20px;
        font-family: PingFang SC, PingFang SC;
        font-weight: bold;
        margin-bottom: 32px;
    }
    .floor_title_s{
        font-size: 12px;
    }
    .banner{
        padding: 22px 0;
    }
    .banner .ks-container{
        padding: 0;
    }
    .floor1_top{
        flex-direction: column;
    }
    .floor1_top_r{
        width: 100%;
        height: auto;
    }
    .floor1-box{
        margin-left: 2px;
        margin-right: 2px;
        box-shadow: 0px 1px 6px 0px rgba(128,162,235,0.12);
    }
    .floor1_top_l{
        padding: 0 12px;
        margin-top: -14px;
    }
    .floor1_top_l h2{
        font-size: 20px;
        line-height: 30px;
    }
    .floor1_top__con{
        margin-top: 6px;
    }
    .floor1_top__con p{
        font-size: 14px;
        color: #757575;
        line-height: 22px;
        margin-bottom: 0;
    }
    .floor1_bottom{
        padding: 20px 0 26px;
    }
    .floor1_bottom_item_i{
        margin: 0 12px;
        padding: 10px 0;
        border-radius: 10px;
    }
    .floor1_bottom_item_img{
        width: 35px;
        height: 31px;
    }
    .floor1_bottom_item_tit{
        font-size: 15px;
        margin-top: 6px;
        line-height: 16px;
    }
    .floor1_bottom_item_intro{
        font-size: 10px;
        margin-top:6px;
        line-height:13px;
    }
    .floor2{
        padding-bottom: 16px;
    }
    .floor2_list{
        margin-right: -6px;
    }
    .floor2_item_i{
        margin-right: 6px;
        margin-bottom: 16px;
    }
    .floor2_item_tit{
        line-height: 21px;
        font-size: 10px;
    }
    .floor3{
        padding-bottom: 10px;
    }
    .floor4_list{
        flex-direction: column;
        margin-right: 0;
    }
    .floor4_item{
        width: 100%;
        margin-bottom: 16px;
    }
    .floor4_item:last-child{
        margin-bottom: 0;
    }
    .floor4_item_i{
        margin-right: 0;
        padding: 16px 21px;
        box-sizing: border-box;
        border-radius: 10px;
    }
    .floor4_item_i h2{
        font-size: 14px;
        margin-left: 5px;
        line-height: 18px;
        margin-bottom: 8px;
    }
    .floor4_item_i p{
        margin-top: 0;
        line-height: 14px;
        font-size: 12px;
    }
}