body{padding-bottom:7.1rem}.module_center{width:12rem;margin:0 auto}.container_t{text-align:center;color:#222;font-size:.28rem;font-weight:550;line-height:.4rem;margin-bottom:.4rem}.banner{width:100%;height:7.47rem;display:-webkit-box;display:-ms-flexbox;display:flex;-webkit-box-pack:center;-ms-flex-pack:center;justify-content:center;-webkit-box-align:center;-ms-flex-align:center;align-items:center;background-repeat:no-repeat;background-position:center center;background-size:cover}.banner_module{width:6.6rem}.banner_module_title{position:relative;display:inline-block}.banner_module_title>p{background:-webkit-gradient(linear,right top,left top,from(#499ef3),color-stop(66%,#5ef7f9),to(#fff));background:-webkit-linear-gradient(right,#499ef3,#5ef7f9 66%,#fff);background:linear-gradient(270deg,#499ef3,#5ef7f9 66%,#fff);color:transparent;-webkit-background-clip:text;background-clip:text;font-size:.34rem;line-height:.55rem}.banner_module_tab{background:url(https://public-test-shengtong.oss-accelerate.aliyuncs.com/robrob_pc/offline/ai_tab_bg.png) no-repeat center center/cover;width:2.05rem;height:.52rem;position:absolute;top:-.52rem;right:-.6rem;text-align:center}.banner_module_tab>p{background:-webkit-gradient(linear,right top,left top,from(#318ee7),to(#2de0e9));background:-webkit-linear-gradient(right,#318ee7,#2de0e9);background:linear-gradient(270deg,#318ee7,#2de0e9);font-size:.2rem;line-height:.36rem;color:transparent;-webkit-background-clip:text;background-clip:text}.banner_module_tip{font-size:.16rem;color:#55d1f6;line-height:.22rem}.banner_module_tip img{margin-right:.06rem;width:.2rem}.banner_module_con{font-size:.16rem;text-align:justify;color:rgba(255,255,255,.75);line-height:.36rem;margin:.42rem 0 .55rem}.banner_module_btn{background:url(https://public-test-shengtong.oss-accelerate.aliyuncs.com/robrob_pc/offline/ai_btn_bg.png) no-repeat center center/cover;width:1.6rem;height:.6rem;text-align:center;cursor:pointer}.banner_module_btn p{font-size:.14rem;line-height:.6rem;background:-webkit-gradient(linear,right top,left top,from(#499ef3),color-stop(66%,#5ef7f9),to(#fff));background:-webkit-linear-gradient(right,#499ef3,#5ef7f9 66%,#fff);background:linear-gradient(270deg,#499ef3,#5ef7f9 66%,#fff);color:transparent;-webkit-background-clip:text;background-clip:text}.course_advantage{padding:.8rem 0}.course_advantage_item{margin-top:.8rem}.course_advantage_item_module{display:-webkit-box;display:-ms-flexbox;display:flex;-webkit-box-pack:justify;-ms-flex-pack:justify;justify-content:space-between;padding:0 .3rem}.course_advantage_item_module>div{width:40%}.course_advantage_item_module .tips{font-size:.16rem;color:#222;letter-spacing:.0002rem;margin-bottom:.28rem}.course_advantage_item_module h2{font-size:.5rem;color:#222;letter-spacing:.0004rem;margin-bottom:.5rem}.course_advantage_item_module .con p{margin-bottom:.24rem;letter-spacing:.0002rem;line-height:.3rem;font-size:.18rem;color:#646a73;text-align:justify}.teaching_aid_show{background:url(https://public-test-shengtong.oss-accelerate.aliyuncs.com/robrob_pc/offline/ai_show_bg.png) no-repeat center center/cover;height:8.53rem}.aid_module_titlt{background:url(https://public-test-shengtong.oss-accelerate.aliyuncs.com/robrob_pc/offline/ai_title_bg.png) no-repeat center center/contain;height:1.48rem;text-align:center;line-height:1.6rem}.aid_module_titlt span{background:-webkit-gradient(linear,right top,left top,from(#499ef3),to(#5ef7f9));background:-webkit-linear-gradient(right,#499ef3,#5ef7f9);background:linear-gradient(270deg,#499ef3,#5ef7f9);font-size:.28rem;letter-spacing:.0006rem;color:transparent;-webkit-background-clip:text;background-clip:text}.aid_module_con{position:relative;height:7.05rem;display:-webkit-box;display:-ms-flexbox;display:flex;-webkit-box-pack:center;-ms-flex-pack:center;justify-content:center;-webkit-box-align:end;-ms-flex-align:end;align-items:end}.aid_module_current{position:absolute;top:-136px;left:0;width:100%;height:100%;text-align:center}.aid_module_current img{width:100%}.aid_module_list{display:-webkit-box;display:-ms-flexbox;display:flex;-ms-flex-pack:distribute;justify-content:space-around}.aid_module_list>div{margin:0 .3rem;width:2.04rem;height:2.48rem;background-position:bottom center;background-size:contain;background-repeat:no-repeat;background-image:url(https://public-test-shengtong.oss-accelerate.aliyuncs.com/robrob_pc/offline/%E6%9C%AA%E9%80%89%E4%B8%AD%402x.png);position:relative;display:-webkit-box;display:-ms-flexbox;display:flex;-webkit-box-pack:center;-ms-flex-pack:center;justify-content:center;-webkit-box-align:end;-ms-flex-align:end;align-items:end;cursor:pointer}.aid_module_list>div.select{background-image:url(https://public-test-shengtong.oss-accelerate.aliyuncs.com/robrob_pc/offline/%E9%80%89%E4%B8%AD%402x.png)}.aid_module_list>div:hover{background-image:url(https://public-test-shengtong.oss-accelerate.aliyuncs.com/robrob_pc/offline/%E9%80%89%E4%B8%AD%402x.png)}.aid_module_list>div img{width:100%;position:absolute;bottom:0;left:0}.aid_module_list>div p{color:#596dbf;font-size:.16rem;text-align:center;margin-bottom:.1rem}.aid_module_list>div.select p{background:-webkit-gradient(linear,left top,right top,from(#28c8d3),to(#2f84da));background:-webkit-linear-gradient(left,#28c8d3,#2f84da);background:linear-gradient(90deg,#28c8d3,#2f84da);color:transparent;-webkit-background-clip:text;background-clip:text}.exam{width:100%;height:2.4rem;background:url(https://public-test-shengtong.oss-accelerate.aliyuncs.com/robrob_pc/offline/kaoji_bg.png) no-repeat center center;padding:.5rem 0 .46rem;-webkit-box-sizing:border-box;box-sizing:border-box}.exam_msg{width:5.8rem;line-height:.66rem;background:rgba(255,255,255,.6);border:.01rem solid #fff;border-radius:.35rem;text-align:center;font-size:.18rem;color:#222;margin:0 auto}.support{padding:1rem 0 .7rem}.support_list{width:100%;-webkit-box-pack:justify;-ms-flex-pack:justify;justify-content:space-between;margin-top:.5rem;margin-bottom:.53rem;-ms-flex-wrap:wrap;flex-wrap:wrap}.support_icon{width:.88rem;height:.88rem;border-radius:50%;margin-right:.16rem;background:#fff}.support_list li{height:1.2rem;display:-webkit-box;display:-ms-flexbox;display:flex;-webkit-box-align:center;-ms-flex-align:center;align-items:center;padding:0 .14rem;border-radius:.16rem;cursor:pointer;position:relative;background:url(https://public-test-shengtong.oss-accelerate.aliyuncs.com/robrob_pc/offline/saishi_bg2.png) no-repeat center center;margin-bottom:.25rem}.support_list li:hover{-webkit-box-shadow:0rem .04rem .16rem 0rem rgba(70,161,252,.4);box-shadow:0rem .04rem .16rem 0rem rgba(70,161,252,.4)}.support_list li p{color:#fff;font-size:.18rem;font-weight:550;line-height:.25rem}.support_list li .icon{width:.24rem;height:.24rem;position:absolute;bottom:.12rem;right:.12rem;opacity:0}.support_list li:hover .icon{opacity:1}.support_consult{width:2rem;line-height:.79rem;font-size:.18rem;font-weight:550;text-align:center;color:#fff;margin:0 auto;background:url(https://public-test-shengtong.oss-accelerate.aliyuncs.com/robrob_pc/offline/zixun2.png) no-repeat;background-size:100%;cursor:pointer}