.des-box{display:flex;justify-content:space-between;margin-top:40px;margin-bottom:40px}
.des-box .des-box-l img{width:600px;height:400px;background:rgba(216,216,216,1);border-radius:10px;display:block}
.des-box .des-box-r{width:500px}
.des-box .des-box-r .title{font-size:28px;color:#1A1A1A;margin-bottom:13px;display:block}
.des-box .des-box-r .teacher{font-size:14px;color:#989898;margin-bottom:49px}
.des-box .des-box-r .teacher span{margin:0 20px}
.des-box .des-box-r .info{width:500px;height:40px;background:rgba(253,78,78,.2);border-radius:10px;color:#FD4E4E;font-size:14px;text-align:center;line-height:40px;margin-bottom:20px}
.des-box .des-box-r .menu{margin-bottom:74px}
.des-box .des-box-r .menu ul{display:flex;justify-content:space-between}
.des-box .des-box-r .menu ul li{width:240px;height:98px;background:rgba(246,246,246,1);border-radius:10px;display:flex;flex-direction:column;align-items:center;justify-content:center}
.des-box .des-box-r .menu ul li strong{font-size:28px;color:#FD4E4E;margin-bottom:10px}
.des-box .des-box-r .menu ul li p{font-size:14px;color:#989898}
.des-box .des-box-r .join{display:flex}
.des-box .des-box-r .join .study-btn{width:180px;height:50px;background:rgba(253,78,78,1);border-radius:10px;display:block;margin-right:20px;font-size:20px;text-align:center;color:#fff;line-height:50px}
.des-box .des-box-r .join .ask-btn{width:180px;height:50px;display:block;border-radius:10px;border:2px solid rgba(253,78,78,1);font-size:20px;text-align:center;color:#FD4E4E;line-height:50px;box-sizing:border-box}