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.2rem) 18rem,50% 20rem,-webkit-calc(50% - 3.5rem) 6rem,-webkit-calc(50% + 4rem) 9rem,bottom;background-position:2.5rem 9rem,-.4rem 25rem,-moz-calc(100% + 1.5rem) 22rem,-moz-calc(50% - .2rem) 18rem,50% 20rem,-moz-calc(50% - 3.5rem) 6rem,-moz-calc(50% + 4rem) 9rem,bottom;background-position:2.5rem 9rem,-.4rem 25rem,calc(100% + 1.5rem) 22rem,calc(50% - .2rem) 18rem,50% 20rem,calc(50% - 3.5rem) 6rem,calc(50% + 4rem) 9rem,bottom;background-repeat:no-repeat;background-size:auto 3rem,auto 3rem,auto 5rem,auto 8.5rem,auto 10rem,auto 18rem,auto 8rem,auto 100%}}.index-section1:after{background-image:url(https://cdn.mathufo.com/h5/home/react/1758595854973/_next/static/media/ball_1.a38f9abb.png);background-repeat:no-repeat;background-size:auto 24rem;height:24rem;opacity:.9;position:absolute;top:-15rem;width:24rem;z-index:0;--tw-content:"";content:"";content:var(--tw-content);left:-webkit-calc(50% - 45rem);left:-moz-calc(50% - 45rem);left:calc(50% - 45rem)}.index-section2{background-image:url(https://cdn.mathufo.com/h5/home/react/1758595854973/_next/static/media/star_4.378fdb39.png),url(https://cdn.mathufo.com/h5/home/react/1758595854973/_next/static/media/bg_2.a650de6d.png);background-position:-webkit-calc(50% - 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300px) -webkit-calc(100% + 10px),-webkit-calc(50% - 615px) 50%,-webkit-calc(50% - 570px) 50%,-webkit-calc(50% - 525px) 50%,-webkit-calc(50% - 480px) 50%,-webkit-calc(50% - 435px) 50%,-webkit-calc(50% - 390px) 50%,-webkit-calc(50% - 345px) 50%,-webkit-calc(50% - 300px) 50%;background-position:-moz-calc(50% - 300px) -moz-calc(100% + 10px),-moz-calc(50% - 615px) 50%,-moz-calc(50% - 570px) 50%,-moz-calc(50% - 525px) 50%,-moz-calc(50% - 480px) 50%,-moz-calc(50% - 435px) 50%,-moz-calc(50% - 390px) 50%,-moz-calc(50% - 345px) 50%,-moz-calc(50% - 300px) 50%;background-position:calc(50% - 300px) calc(100% + 10px),calc(50% - 615px),calc(50% - 570px),calc(50% - 525px),calc(50% - 480px),calc(50% - 435px),calc(50% - 390px),calc(50% - 345px),calc(50% - 300px);background-repeat:no-repeat,repeat-y,repeat-y,repeat-y,repeat-y,repeat-y,repeat-y,repeat-y,repeat-y;background-size:auto 97px,45px auto,45px auto,45px auto,45px auto,45px auto,45px auto,45px auto,45px auto}.index-section5 .tip-item{display:-webkit-box;display:-webkit-flex;display:-moz-box;display:-ms-flexbox;display:flex;height:100%;width:100%;-webkit-box-align:center;-webkit-align-items:center;-moz-box-align:center;-ms-flex-align:center;align-items:center;-webkit-box-pack:justify;-webkit-justify-content:space-between;-moz-box-pack:justify;-ms-flex-pack:justify;justify-content:space-between}.index-section5 .text-area{text-align:left;white-space:nowrap;width:23.75rem}.index-section5 .video-area{background-image:url(https://cdn.mathufo.com/h5/home/react/1758595854973/_next/static/media/Practice3_1.ec375868.png),url(https://cdn.mathufo.com/h5/home/react/1758595854973/_next/static/media/Practice3_2.0d61b778.png);background-position:left 190px,right 0;background-repeat:no-repeat;background-size:165px auto,225px auto}.index-section5 .video-area .video-bottom{left:-webkit-calc(50% - 171px);left:-moz-calc(50% - 171px);left:calc(50% - 171px)}.index-section5 .wave-line{position:absolute;top:-.625rem}@media (min-width:768.02px) and (max-width:1024px){.index-section5 .video-area{background-position:left 250px,right 110px;background-size:145px auto,200px auto}.index-section5 .video-area .video-bottom{left:-webkit-calc(50% - 140px);left:-moz-calc(50% - 140px);left:calc(50% - 140px)}}@media (max-width:768px){.index-section5{background-image:url(https://cdn.mathufo.com/h5/home/react/1758595854973/_next/static/media/bottom_3.77e0a554.png);background-position:-webkit-calc(50% - 9.5rem) -webkit-calc(100% + .3rem);background-position:-moz-calc(50% - 9.5rem) -moz-calc(100% + .3rem);background-position:calc(50% - 9.5rem) calc(100% + .3rem);background-repeat:no-repeat;background-size:15rem auto;height:34rem}.index-section5 .tip-item{-webkit-box-orient:vertical;-webkit-box-direction:normal;-webkit-flex-direction:column;-moz-box-orient:vertical;-moz-box-direction:normal;-ms-flex-direction:column;flex-direction:column}.index-section5 .text-area{text-align:center;width:20rem}.index-section5 .video-area{background-position:left 4rem,right 0;background-size:5rem auto,6rem auto}.index-section5 .video-area .video-bottom{left:-webkit-calc(50% - 5.17rem);left:-moz-calc(50% - 5.17rem);left:calc(50% - 5.17rem);top:-webkit-calc(50% - 9rem);top:-moz-calc(50% - 9rem);top:calc(50% - 9rem)}}.index-section6{height:52.8125rem;--tw-bg-opacity:1;background-color:#71acfc;background-color:rgba(113,172,252,var(--tw-bg-opacity));background-image:url(https://cdn.mathufo.com/h5/home/react/1758595854973/_next/static/media/bottom_4.8c04c98e.png),url(https://cdn.mathufo.com/h5/home/react/1758595854973/_next/static/media/cloud_1.804b65c0.png);background-position:-webkit-calc(50% - 85px) bottom,-webkit-calc(50% + 638px) 682px;background-position:-moz-calc(50% - 85px) bottom,-moz-calc(50% + 638px) 682px;background-position:calc(50% - 85px) bottom,calc(50% + 638px) 682px;background-repeat:no-repeat;background-size:auto 275px,auto 39px}.index-section6 .tip-item{display:-webkit-box;display:-webkit-flex;display:-moz-box;display:-ms-flexbox;display:flex;height:100%;position:relative;width:100%;-webkit-box-align:center;-webkit-align-items:center;-moz-box-align:center;-ms-flex-align:center;align-items:center;-webkit-box-pack:justify;-webkit-justify-content:space-between;-moz-box-pack:justify;-ms-flex-pack:justify;background-image:url(https://cdn.mathufo.com/h5/home/react/1758595854973/_next/static/media/cloud_1.804b65c0.png),url(https://cdn.mathufo.com/h5/home/react/1758595854973/_next/static/media/cloud_2.1aa45e44.png);background-position:651px 437px,553px 477px;background-repeat:no-repeat;background-size:auto 81px,auto 31px;justify-content:space-between}.index-section6 .text-area{text-align:left;white-space:nowrap;width:25rem}.index-section6 .video-area{background-image:url(https://cdn.mathufo.com/h5/home/react/1758595854973/_next/static/media/Practice4_1.cfea8d44.png),url(https://cdn.mathufo.com/h5/home/react/1758595854973/_next/static/media/Practice4_2.11521b9b.png);background-position:left 155px,right 10px;background-repeat:no-repeat;background-size:202px auto,165px auto}.index-section6 .top-line{position:absolute;top:0}@media (min-width:768.02px) and (max-width:1024px){.index-section6 .video-area{background-position:left 140px,right 60px;background-size:180px auto,145px auto}}@media (max-width:768px){.index-section6{background-image:url(https://cdn.mathufo.com/h5/home/react/1758595854973/_next/static/media/bottom_4.8c04c98e.png),url(https://cdn.mathufo.com/h5/home/react/1758595854973/_next/static/media/cloud_1.804b65c0.png),url(https://cdn.mathufo.com/h5/home/react/1758595854973/_next/static/media/cloud_2.1aa45e44.png);background-position:-webkit-calc(50% - 5rem) bottom,-webkit-calc(50% - 11rem) 10rem,-webkit-calc(50% + 3.3rem) 23rem;background-position:-moz-calc(50% - 5rem) bottom,-moz-calc(50% - 11rem) 10rem,-moz-calc(50% + 3.3rem) 23rem;background-position:calc(50% - 5rem) bottom,calc(50% - 11rem) 10rem,calc(50% + 3.3rem) 23rem;background-repeat:no-repeat;background-size:42rem auto,auto 4rem,auto 2rem;height:34rem}.index-section6 .tip-item{-webkit-box-orient:vertical;-webkit-box-direction:normal;-webkit-flex-direction:column;-moz-box-orient:vertical;-moz-box-direction:normal;-ms-flex-direction:column;flex-direction:column}.index-section6 .text-area{text-align:center;width:20rem}.index-section6 .video-area{background-position:left 4rem,right 0;background-size:5rem auto,6rem auto}.index-section6 .video-area .video-bottom{left:-webkit-calc(50% - 5.17rem);left:-moz-calc(50% - 5.17rem);left:calc(50% - 5.17rem);top:-webkit-calc(50% - 9rem);top:-moz-calc(50% - 9rem);top:calc(50% - 9rem)}}.index-section7{background-image:url(https://cdn.mathufo.com/h5/home/react/1758595854973/_next/static/media/bottom_5.211e36f1.png),url(https://cdn.mathufo.com/h5/home/react/1758595854973/_next/static/media/star_5.f47758a1.png),-webkit-linear-gradient(bottom,#ffdf98,#ffdf98 181px,#694af1 0,#694af1 628px);background-image:url(https://cdn.mathufo.com/h5/home/react/1758595854973/_next/static/media/bottom_5.211e36f1.png),url(https://cdn.mathufo.com/h5/home/react/1758595854973/_next/static/media/star_5.f47758a1.png),-moz-linear-gradient(bottom,#ffdf98 0,#ffdf98 181px,#694af1 181px,#694af1 628px);background-image:url(https://cdn.mathufo.com/h5/home/react/1758595854973/_next/static/media/bottom_5.211e36f1.png),url(https://cdn.mathufo.com/h5/home/react/1758595854973/_next/static/media/star_5.f47758a1.png),linear-gradient(0deg,#ffdf98,#ffdf98 181px,#694af1 0,#694af1 628px);background-position:50% bottom,185px 91px,bottom;background-repeat:no-repeat;background-size:auto 290px,auto 581px,auto 100%;height:60rem}.index-section7 .tip-item{display:-webkit-box;display:-webkit-flex;display:-moz-box;display:-ms-flexbox;display:flex;height:100%;width:100%;-webkit-box-align:center;-webkit-align-items:center;-moz-box-align:center;-ms-flex-align:center;align-items:center;-webkit-box-pack:justify;-webkit-justify-content:space-between;-moz-box-pack:justify;-ms-flex-pack:justify;justify-content:space-between}.index-section7 .text-area{text-align:left;white-space:nowrap;width:25rem}.index-section7 .video-area{background-image:url(https://cdn.mathufo.com/h5/home/react/1758595854973/_next/static/media/Practice5_1.2de456f1.png),url(https://cdn.mathufo.com/h5/home/react/1758595854973/_next/static/media/Practice5_2.eeb75035.png);background-position:left 138px,right 36px;background-repeat:no-repeat;background-size:202px auto,165px auto}.index-section7 .top-line{position:absolute;top:0}@media (min-width:768.02px) and (max-width:1024px){.index-section7 .video-area{background-position:left 138px,right 90px;background-size:187px auto,150px auto}}@media (max-width:768px){.index-section7{background-image:url(https://cdn.mathufo.com/h5/home/react/1758595854973/_next/static/media/bottom_5.211e36f1.png),url(https://cdn.mathufo.com/h5/home/react/1758595854973/_next/static/media/star_5.f47758a1.png),-webkit-gradient(linear,left bottom,left top,color-stop(0,#ffdf98),color-stop(1.65rem,#ffdf98),color-stop(1.65rem,#694af1),color-stop(10.4rem,#694af1));background-image:url(https://cdn.mathufo.com/h5/home/react/1758595854973/_next/static/media/bottom_5.211e36f1.png),url(https://cdn.mathufo.com/h5/home/react/1758595854973/_next/static/media/star_5.f47758a1.png),-webkit-linear-gradient(bottom,#ffdf98,#ffdf98 1.65rem,#694af1 0,#694af1 10.4rem);background-image:url(https://cdn.mathufo.com/h5/home/react/1758595854973/_next/static/media/bottom_5.211e36f1.png),url(https://cdn.mathufo.com/h5/home/react/1758595854973/_next/static/media/star_5.f47758a1.png),-moz-linear-gradient(bottom,#ffdf98 0,#ffdf98 1.65rem,#694af1 1.65rem,#694af1 10.4rem);background-image:url(https://cdn.mathufo.com/h5/home/react/1758595854973/_next/static/media/bottom_5.211e36f1.png),url(https://cdn.mathufo.com/h5/home/react/1758595854973/_next/static/media/star_5.f47758a1.png),linear-gradient(0deg,#ffdf98,#ffdf98 1.65rem,#694af1 0,#694af1 10.4rem);background-position:bottom,-webkit-calc(50% - 9.5rem) 5.5rem,bottom;background-position:bottom,-moz-calc(50% - 9.5rem) 5.5rem,bottom;background-position:bottom,calc(50% - 9.5rem) 5.5rem,bottom;background-size:auto 8rem,15rem auto,auto 100%;height:37rem}.index-section7 .tip-item{-webkit-box-orient:vertical;-webkit-box-direction:normal;-webkit-flex-direction:column;-moz-box-orient:vertical;-moz-box-direction:normal;-ms-flex-direction:column;flex-direction:column}.index-section7 .text-area{text-align:center;width:20rem}.index-section7 .video-area{background-position:left 4rem,right 0;background-size:5rem auto,6rem auto}.index-section7 .video-area .video-bottom{left:-webkit-calc(50% - 5.17rem);left:-moz-calc(50% - 5.17rem);left:calc(50% - 5.17rem);top:-webkit-calc(50% - 12.5rem);top:-moz-calc(50% - 12.5rem);top:calc(50% - 12.5rem)}}.video-area{height:33.8125rem;position:relative;width:44.3125rem}.video-area .video-bottom{display:-webkit-box;display:-webkit-flex;display:-moz-box;display:-ms-flexbox;display:flex;height:32.4375rem;position:absolute;width:17.75rem;-webkit-box-align:center;-webkit-align-items:center;-moz-box-align:center;-ms-flex-align:center;align-items:center;-webkit-box-pack:center;-webkit-justify-content:center;-moz-box-pack:center;-ms-flex-pack:center;background-color:hsla(37,67%,89%,.6);border-radius:1.25rem;justify-content:center;left:-webkit-calc(50% - 123px);left:-moz-calc(50% - 123px);left:calc(50% - 123px);top:-webkit-calc(50% - 258px);top:-moz-calc(50% - 258px);top:calc(50% - 258px)}.video-area .player-box{-webkit-clip-path:inset(0 0 0 0 round 16px);clip-path:inset(0 0 0 0 round 16px);cursor:pointer;height:31.75rem;width:17rem}.video-area .vjs-big-play-button{height:3.75rem!important;margin:0!important;width:3.75rem!important;--tw-translate-x:-50%!important;-webkit-transform:translate(-50%,var(--tw-translate-y)) rotate(var(--tw-rotate)) skewX(var(--tw-skew-x)) skewY(var(--tw-skew-y)) scaleX(var(--tw-scale-x)) scaleY(var(--tw-scale-y))!important;-moz-transform:translate(-50%,var(--tw-translate-y)) rotate(var(--tw-rotate)) skewX(var(--tw-skew-x)) skewY(var(--tw-skew-y)) scaleX(var(--tw-scale-x)) scaleY(var(--tw-scale-y))!important;-ms-transform:translate(-50%,var(--tw-translate-y)) rotate(var(--tw-rotate)) skewX(var(--tw-skew-x)) skewY(var(--tw-skew-y)) scaleX(var(--tw-scale-x)) scaleY(var(--tw-scale-y))!important;transform:translate(-50%,var(--tw-translate-y)) rotate(var(--tw-rotate)) skewX(var(--tw-skew-x)) skewY(var(--tw-skew-y)) scaleX(var(--tw-scale-x)) scaleY(var(--tw-scale-y))!important;--tw-translate-y:-50%!important;background-image:url(https://cdn.mathufo.com/h5/home/react/1758595854973/_next/static/media/video_play_new.b8fdd7c6.png)!important;background-position:50%!important;background-repeat:no-repeat!important;background-size:100%!important;-webkit-transform:translate(var(--tw-translate-x),-50%) rotate(var(--tw-rotate)) skewX(var(--tw-skew-x)) skewY(var(--tw-skew-y)) scaleX(var(--tw-scale-x)) scaleY(var(--tw-scale-y))!important;-moz-transform:translate(var(--tw-translate-x),-50%) rotate(var(--tw-rotate)) skewX(var(--tw-skew-x)) skewY(var(--tw-skew-y)) scaleX(var(--tw-scale-x)) scaleY(var(--tw-scale-y))!important;-ms-transform:translate(var(--tw-translate-x),-50%) rotate(var(--tw-rotate)) skewX(var(--tw-skew-x)) skewY(var(--tw-skew-y)) scaleX(var(--tw-scale-x)) scaleY(var(--tw-scale-y))!important;transform:translate(var(--tw-translate-x),-50%) rotate(var(--tw-rotate)) skewX(var(--tw-skew-x)) skewY(var(--tw-skew-y)) scaleX(var(--tw-scale-x)) scaleY(var(--tw-scale-y))!important;-webkit-transform:translate(var(--tw-translate-x),var(--tw-translate-y)) rotate(var(--tw-rotate)) skewX(var(--tw-skew-x)) skewY(var(--tw-skew-y)) scaleX(var(--tw-scale-x)) scaleY(var(--tw-scale-y))!important;-moz-transform:translate(var(--tw-translate-x),var(--tw-translate-y)) rotate(var(--tw-rotate)) skewX(var(--tw-skew-x)) skewY(var(--tw-skew-y)) scaleX(var(--tw-scale-x)) scaleY(var(--tw-scale-y))!important;-ms-transform:translate(var(--tw-translate-x),var(--tw-translate-y)) rotate(var(--tw-rotate)) skewX(var(--tw-skew-x)) skewY(var(--tw-skew-y)) scaleX(var(--tw-scale-x)) scaleY(var(--tw-scale-y))!important;transform:translate(var(--tw-translate-x),var(--tw-translate-y)) rotate(var(--tw-rotate)) skewX(var(--tw-skew-x)) skewY(var(--tw-skew-y)) scaleX(var(--tw-scale-x)) scaleY(var(--tw-scale-y))!important}.video-area .vjs-button-icon{display:none!important}@media (min-width:768.02px) and (max-width:1024px){.video-area .video-bottom{height:25.45rem;left:-webkit-calc(50% - 93px);left:-moz-calc(50% - 93px);left:calc(50% - 93px);top:-webkit-calc(50% - 200px);top:-moz-calc(50% - 200px);top:calc(50% - 200px);width:14rem}.video-area .player-box{-webkit-clip-path:inset(0 0 0 0 round 18px);clip-path:inset(0 0 0 0 round 18px);height:24.85rem;width:13.4rem}}@media (max-width:768px){.video-area{height:20rem;width:100%}.video-area .video-bottom{border-radius:.5rem;height:17rem;width:9.37rem}.video-area .player-box{-webkit-clip-path:inset(0 0 0 0 round .5rem);clip-path:inset(0 0 0 0 round .5rem);height:16.4rem;width:8.77rem}}