.model-1-content {
    display: flex;
    justify-content: flex-start;
}

.model-1-content .m1-l img {
    width: 600px;
}

.model-1-content .m1-r {
    display: flex;
    justify-content: flex-start;
    align-items: flex-start;
    flex-flow: wrap;
    margin-left: 20px;
}

.model-1-content .m1-r .m1-list img {
    width: 60px;
}

.model-1-content .m1-r .m1-list span {
    font-size: 30px;
    background: linear-gradient(to left, rgba(255, 255, 255, 0), rgb(116 174 255));
    background-size: cover;
    padding: 10px 60px 10px 30px;
    margin: 0 20px;
    color: #fff;
    font-weight: bold;
    line-height: 55px;
    text-shadow: 1px 1px 5px #929292;
}
.model-1-content .m1-r .m1-list p {
    margin-left: 85px;
    font-size: 18px;
    letter-spacing: 2px;
    margin-top: 15px;
    margin-bottom: 15px;
    color: #5a5a5a;
}


.model-2-content img{
width: 100%;
}

.model-3-content img{
    width: 100%;
}

.m3-b p{display: flex;justify-content: space-between;padding: 10px 30px;background-color: #267dfe;margin: 20px 0;}
.m3-b span{font-size: 20px;letter-spacing: 2px;color: #fff;}

.model-4{
    background: url("https://jintongjiaoyu.oss-cn-beijing.aliyuncs.com/org/teach/m4-bg.png");
    background-size: 100% 100%;
}
.model-4{color: #fff;}
.model-4 .container{padding: 50px 0; }
.model-4-content{
    display: flex;
    flex-flow: wrap;
    margin: 30px 0;
    
}
.m4-list{width: 20%;margin: 25px 0;}
.model-4-content .m4-list .m4-t {display: flex;justify-content:left;align-items: center;position: relative;}

.model-4-content .m4-list .m4-t img{
    width: 30px;
}
.model-4-content .m4-list .m4-t span{
    font-size: 32px;
    font-weight: bold;
    letter-spacing: 2px;
    margin-left: 10px;
}
.model-4-content .m4-list .m4-t:after{content:'';height: 2px;background:linear-gradient(to left,rgba(255, 255, 255, 0),rgba(255, 255, 255, 1)) ;background-size: cover;position: absolute;bottom: 0;left:0;width: 100%;    margin: -5px 0px;}

.model-4-content .m4-list .m4-b{
    font-size: 18px;
    letter-spacing: 2px;
    padding: 15px;
}


.model-5-content{
    display: flex;
    justify-content: space-between;
    flex-direction: row;
    flex-wrap: nowrap;
    align-content: stretch;
    align-items: flex-end;
    margin: 50px 0;

}
.model-5-content img{height: 330px;}



@media screen and (min-width: 1441px) and (max-width: 1599px){
    /*教学阶梯*/
    .model-title h1{font-size: 32px;}
    .model-1-content .m1-r {
        margin-left: 15px;
    }
    .model-1-content .m1-l img {
        width: 550px;
    }
    .model-1-content .m1-r .m1-list span {
        font-size: 25px;
        line-height: 45px;
    }
    .model-1-content .m1-r .m1-list p {
        margin-left: 85px;
        font-size: 16px;
    }

    /*教师团队*/
    .m3-b p {
        padding: 10px 10px;
    }
    .m3-b span {
        font-size: 16px;
        letter-spacing: 1px;
    }
    /*服务*/

    /*平台*/
    .model-5-content img{height: 300px;}
}
  
@media screen and (min-width: 1200px) and (max-width: 1440px){
    
    /*教学阶梯*/
    .model-title h1{font-size: 30px;}
    .model-1-content .m1-r {
        margin-left: 15px;
    }
    .model-1-content .m1-r .m1-list img {
        width: 50px;
    }
    .model-1-content .m1-l img {
        width: 450px;
    }
    .model-1-content .m1-r .m1-list span {
        font-size: 25px;
        line-height: 40px;
    }
    .model-1-content .m1-r .m1-list p {
        margin-left: 65px;
        font-size: 16px;
    }
    .model-1-content .m1-r .m1-list p {
        margin-top: 10px;
        margin-bottom: 10px;
    }

    /*教师团队*/
    .m3-b p {
        padding: 10px 10px;
    }
    .m3-b span {
        font-size: 16px;
        letter-spacing: 1px;
    }
    /*服务*/
    .model-4-content{
        margin:0;
    }
    .model-4-content .m4-list .m4-t span {
        font-size: 25px;
    }
    .model-4-content .m4-list .m4-b {
        font-size: 18px;
        letter-spacing: 1px;
        padding: 15px 10px;
    }

    /*平台*/
    .model-5-content img {
        height: 250px;
    }
      
  }
  
@media screen and (min-width: 992px) and (max-width: 1199px){
    .model-title h1{font-size: 25px;}
    /*教学阶梯*/
    
    .model-1-content .m1-r {
        margin-left: 15px;
    }
    .model-1-content .m1-r .m1-list img {
        width: 40px;
    }
    
    .model-1-content .m1-l img {
        width: 450px;
    }
    .model-1-content .m1-r .m1-list span {
        font-size: 18px;
        line-height: 25px;
    }
    .model-1-content .m1-r .m1-list p {
        margin-left: 65px;
        font-size: 14px;
        margin-top: 5px;
        margin-bottom: 10px;
    }


    /*教师团队*/
    .m3-b p {
        padding: 10px 10px;
    }
    .m3-b span {
        font-size: 14px;
        letter-spacing: 1px;
    }
    /*服务*/
    .model-4-content{
        margin:0;
    }
    .model-4-content .m4-list .m4-t span {
        font-size: 22px;
    }
    .model-4-content .m4-list .m4-b {
        font-size: 16px;
        letter-spacing: 0px;
        padding: 10px 5px;
    }

    /*平台*/
    .model-5-content img {
        height: 210px;
    }
     
  }
  
  
  @media screen and (min-width: 768px) and (max-width: 991px){
    .model-title h1{font-size: 25px;}
    /*教学阶梯*/
    
    .model-1-content .m1-r {
        margin-left: 15px;
    }
    .model-1-content .m1-r .m1-list img {
        width: 40px;
    }
    
    .model-1-content .m1-l img {
        width: 330px;
    }
    .model-1-content .m1-r .m1-list span {
        font-size: 18px;
        line-height: 25px;
    }
    .model-1-content .m1-r .m1-list p {
        margin-left: 65px;
        font-size: 14px;
        margin-top: 5px;
        margin-bottom: 10px;
    }


    /*教师团队*/
    .m3-b p {
        padding: 10px 10px;
    }
    .m3-b span {
        font-size: 14px;
        letter-spacing: 1px;
    }
    /*服务*/
    .model-4-content{
        margin:0;
    }
    .model-4-content .m4-list .m4-t span {
        font-size: 22px;
    }
    .model-4-content .m4-list .m4-b {
        font-size: 16px;
        letter-spacing: 0px;
        padding: 10px 5px;
    }

    /*平台*/
    .model-5-content img {
        height: 210px;
    }

  }
  
  @media screen and (min-width: 640px) and (max-width: 767px){
    .model-title h1{font-size: 22px;}
    .model_title_font h1 {
        letter-spacing: 1px;
        font-weight: bold;
    }
    /*教学阶梯*/
    .model-1-content{display: grid;position: relative;}
    .m1-l{position: absolute;text-align: center;width: 100%;opacity: 0.3;}
    
    .model-1-content .m1-r {
        margin-left: 15px;
    }
    .model-1-content .m1-r .m1-list img {
        width: 40px;
    }
    
    .model-1-content .m1-l img {
        width: 330px;
    }
    .model-1-content .m1-r .m1-list span {
        font-size: 18px;
        line-height: 25px;
    }
    .model-1-content .m1-r .m1-list p {
        margin-left: 65px;
        font-size: 14px;
        margin-top: 5px;
        margin-bottom: 10px;
    }


    /*教师团队*/
    .m3-b p {
        padding: 10px 10px;
        flex-flow: wrap
    }
    .m3-b span {
        font-size: 14px;
        letter-spacing: 1px;
    }
    /*服务*/
    .model-4 .container{
        padding: 10px 0;
    }
    .model-4-content{
        margin:0;
        justify-content: center;
    }
    .model-4-content .m4-list{
        width: 40%;
    }
    .model-4-content .m4-list .m4-t span {
        font-size: 20px;
    }
    .model-4-content .m4-list .m4-b {
        font-size: 16px;
        letter-spacing: 0px;
        padding: 10px 5px;
    }

    /*平台*/
    .model-5-content img {
        height: 120px;
    }
  }
  
  @media screen and (min-width:480px) and (max-width:639px){
    .model-title h1{font-size: 22px;}
    .model_title_font h1 {
        letter-spacing: 1px;
        font-weight: bold;
    }
    /*教学阶梯*/
    .model-1-content{display: grid;position: relative;}
    .m1-l{position: absolute;text-align: center;width: 100%;opacity: 0.3;}
    
    .model-1-content .m1-r {
        margin-left: 15px;
    }
    .model-1-content .m1-r .m1-list img {
        width: 40px;
    }
    
    .model-1-content .m1-l img {
        width: 330px;
    }
    .model-1-content .m1-r .m1-list span {
        font-size: 18px;
        line-height: 25px;
    }
    .model-1-content .m1-r .m1-list p {
        margin-left: 65px;
        font-size: 14px;
        margin-top: 5px;
        margin-bottom: 10px;
    }


    /*教师团队*/
    .m3-b p {
        padding: 10px 10px;
        flex-flow: wrap
    }
    .m3-b span {
        font-size: 14px;
        letter-spacing: 1px;
    }
    /*服务*/
    .model-4 .container{
        padding: 10px 0;
    }
    .model-4-content{
        margin:0;
        justify-content: center;
    }
    .model-4-content .m4-list{
        width: 40%;
    }
    .model-4-content .m4-list .m4-t span {
        font-size: 20px;
    }
    .model-4-content .m4-list .m4-b {
        font-size: 16px;
        letter-spacing: 0px;
        padding: 10px 5px;
    }

    /*平台*/
    .model-5-content img {
        height: 120px;
    }
      
  }
  
  @media screen and (max-width: 479px){
    .model-title h1{font-size: 22px;}
    .model_title_font h1 {
        letter-spacing: 1px;
        font-weight: bold;
    }
    /*教学阶梯*/
    .model-1-content{display: grid;position: relative;}
    .m1-l{position: absolute;text-align: center;width: 100%;opacity: 0.3;}
    
    .model-1-content .m1-r {
        margin-left: 15px;
    }
    .model-1-content .m1-r .m1-list img {
        width: 40px;
    }
    
    .model-1-content .m1-l img {
        width: 330px;
    }
    .model-1-content .m1-r .m1-list span {
        font-size: 18px;
        line-height: 25px;
    }
    .model-1-content .m1-r .m1-list p {
        margin-left: 65px;
        font-size: 14px;
        margin-top: 5px;
        margin-bottom: 10px;
    }


    /*教师团队*/
    .m3-b p {
        padding: 10px 10px;
        flex-flow: wrap
    }
    .m3-b span {
        font-size: 14px;
        letter-spacing: 1px;
    }
    /*服务*/
    .model-4 .container{
        padding: 10px 0;
    }
    .model-4-content{
        margin:0;
        justify-content: center;
    }
    .model-4-content .m4-list{
        width: 40%;
    }
    .model-4-content .m4-list .m4-t span {
        font-size: 20px;
    }
    .model-4-content .m4-list .m4-b {
        font-size: 16px;
        letter-spacing: 0px;
        padding: 10px 5px;
    }

    /*平台*/
    .model-5-content img {
        height: 120px;
    }
  
  }