.open-courses-header{display:flex;justify-content:center}.open-courses-header__main{position:relative;justify-content:center;align-items:flex-start;width:1214px;height:507px;margin-top:33px;background-image:url(https://xyp.qpic.cn/remix-gameinstitute/assets/frame-BBDvbJVw.png);background-size:contain}.open-courses-header .top-video{width:744px;height:419px;margin-top:35px;margin-right:46px;-webkit-user-select:none;-moz-user-select:none;user-select:none;cursor:pointer}.open-courses-header .container{align-items:flex-start;margin-top:46px}.open-courses-header .desc-wrapper{position:relative;align-items:flex-start;height:33px;line-height:22px;white-space:nowrap}.open-courses-header .desc{position:relative;max-width:337px;margin-left:1px;font-size:22px;font-weight:700;color:#3b51a6;text-align:left;letter-spacing:0px;text-overflow:ellipsis}.open-courses-header .wrapper{position:relative;align-items:flex-start;margin-top:2px}.open-courses-header .text-background{position:relative;width:325px;height:2px;margin-top:-2px;margin-left:2px}.open-courses-header .article{position:relative;display:-webkit-inline-box;width:339px;margin-top:14px;font-size:16px;line-height:20px;color:#333;text-align:left;letter-spacing:0px;text-overflow:ellipsis;webkit-box-orient:vertical;webkit-line-clamp:4}.open-courses-header .summary{position:relative;display:-webkit-inline-box;width:339px;margin-top:13px;font-size:16px;line-height:24px;color:#333;text-align:left;letter-spacing:0px;text-overflow:ellipsis;webkit-box-orient:vertical;webkit-line-clamp:2}.open-courses-header .label{position:relative;max-width:337px;margin-top:15px;margin-left:1px;font-size:16px;line-height:16px;color:#333;text-align:left;letter-spacing:.16px;white-space:nowrap;text-overflow:ellipsis}.open-courses-header .summary-1{position:relative;max-width:339px;margin-top:10px;font-size:14px;line-height:14px;color:#999;text-align:left;letter-spacing:.14px;white-space:nowrap;text-overflow:ellipsis}.open-courses-banner{height:428px;overflow:hidden;position:relative}.open-courses-banner__figure{position:absolute;top:0;left:0;right:0;bottom:0;width:100vw;height:100%;-o-object-position:center center;object-position:center center;-o-object-fit:cover;object-fit:cover}.open-courses-header .btn-end{display:inline-block;width:174px;height:57px;background:url(https://xyp.qpic.cn/remix-gameinstitute/assets/btn-end-CTBv2KcM.png) no-repeat 0 0/174px 57px;cursor:default}.open-courses-header .btn-mine{display:inline-block;width:174px;height:57px;background:url(https://xyp.qpic.cn/remix-gameinstitute/assets/btn-mine-BSaxuwQ6.png) no-repeat 0 0/174px 57px}.open-courses-header .btn-signup{display:inline-block;width:174px;height:57px;background:url(https://xyp.qpic.cn/remix-gameinstitute/assets/btn-signup-CTqT4kbn.png) no-repeat 0 0/174px 57px}.open-courses-header .dec-rect{width:325px;height:2px;background:url(data:image/png;base64,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) no-repeat 0 0/325px 2px}.open-courses-header__btn-group{position:relative;margin-top:19px;margin-left:2px}.open-courses-header__btn-group .btn-signup,.open-courses-header__btn-group .btn-mine,.open-courses-header__btn-group .btn-end{vertical-align:top}.open-courses-header__btn-group .btn-signup,.open-courses-header__btn-group .btn-mine,.open-courses-header__btn-group .btn-end{font-size:0;color:transparent}.open-courses-header__share{position:relative;justify-content:center;align-items:center;margin-top:13px;margin-left:5px}.open-courses-header__share__item{display:inline-block;width:29px;height:29px;margin-right:10px}@keyframes viewMBottom{0%{opacity:0;top:42px;left:50%;transform:translateY(-5px) translate(-50%)}1%{opacity:0;transform:translateY(-5px) translate(-50%)}to{opacity:1;transform:translateY(0) translate(-50%);top:42px;left:50%}}.open-courses-header .view-m{position:relative}.open-courses-header .view-m__arrow-t{display:block;height:14px;position:absolute;top:-14px;left:0;right:0}.open-courses-header .view-m__cnt{opacity:0;position:absolute;top:-9999em;left:-9999em;padding:10px;border:1px solid #ececec;border-radius:5px;background-color:#fff;z-index:5}.open-courses-header .view-m__arrow-t:after,.open-courses-header .view-m__arrow-t:before{content:"";position:absolute;left:50%;transform:translate(-50%)}.open-courses-header .view-m__arrow-t:before{top:6px;display:inline-block;width:0;height:0;font-size:0;border-bottom:8px solid #ececec;border-left:8px solid transparent;border-right:8px solid transparent}.open-courses-header .view-m__arrow-t:after{top:7px;display:inline-block;width:0;height:0;font-size:0;border-bottom:7px solid #fff;border-left:7px solid transparent;border-right:7px solid transparent}.open-courses-header .view-m:hover .view-m__cnt{animation:viewMBottom .2s ease-in-out 0s forwards}.open-courses-header .wrapper .box{display:flex;flex-direction:column;align-items:flex-start;max-width:338px}.open-courses-header .wrapper .box:nth-child(3){margin-top:16px}.open-courses-header .wrapper .box:nth-child(4){margin-top:12px}.open-courses-header .wrapper .box .btn-image{height:32px;-o-object-fit:contain;object-fit:contain;cursor:pointer}.open-courses-header .wrapper .box .text-box{margin-top:6px}.open-courses-header .wrapper .box .text{font-size:14px;line-height:15px;color:#3b51a6;background-color:#d3e0ff}.open-courses-nav{margin:17px auto 0}.open-courses-nav__list{display:flex;justify-content:center;align-items:center}.open-courses-nav__list>li{margin:0 6px}.open-courses-nav__link-1,.open-courses-nav__link-2,.open-courses-nav__link-3,.open-courses-nav__link-4{display:block;width:286px;height:73px}.open-courses-nav__link-1,.open-courses-nav__link-2,.open-courses-nav__link-3,.open-courses-nav__link-4{font-size:0;color:transparent}.open-courses-nav__link-1,.open-courses-nav__link-2,.open-courses-nav__link-3,.open-courses-nav__link-4{position:relative}.open-courses-nav__link-1 .icon,.open-courses-nav__link-2 .icon,.open-courses-nav__link-3 .icon,.open-courses-nav__link-4 .icon{position:absolute;top:15px;right:18px;height:16px;-o-object-fit:contain;object-fit:contain}.open-courses-nav__link-1{background:url(https://xyp.qpic.cn/remix-gameinstitute/assets/nav-item-1-CCF7n2as.png) no-repeat 0 0/286px 67px,url(https://xyp.qpic.cn/remix-gameinstitute/assets/nav-item-current-1-D4NX6JcT.png) no-repeat -9999px -9999px/286px 73px}.open-courses-nav__link-2{background:url(https://xyp.qpic.cn/remix-gameinstitute/assets/nav-item-2-13pTO5Qg.png) no-repeat 0 0/286px 67px,url(https://xyp.qpic.cn/remix-gameinstitute/assets/nav-item-current-2-r6BKZ_Jw.png) no-repeat -9999px -9999px/286px 73px}.open-courses-nav__link-3{background:url(https://xyp.qpic.cn/remix-gameinstitute/assets/nav-item-3-C2FGDGwu.png) no-repeat 0 0/286px 67px,url(https://xyp.qpic.cn/remix-gameinstitute/assets/nav-item-current-3-PBz5aZ-7.png) no-repeat -9999px -9999px/286px 73px}.open-courses-nav__link-4{background:url(https://xyp.qpic.cn/remix-gameinstitute/assets/nav-item-4-ytXul8b-.png) no-repeat 0 0/286px 67px,url(https://xyp.qpic.cn/remix-gameinstitute/assets/nav-item-current-4-DR9aIZ7J.png) no-repeat -9999px -9999px/286px 73px}.open-courses-nav__link--active{background-position:-9999px -9999px,0 0}.open-courses-side{width:158px;height:222px;background:url(https://xyp.qpic.cn/remix-gameinstitute/assets/sidebar-frame-D05JgLAs.png) no-repeat 0 0/158px 222px;position:fixed;top:auto;right:0;bottom:50%;z-index:99;padding:22px 21px 14px 23px;text-align:center;transform:translateY(50%)}@media screen and (max-width:1520px){.open-courses-side{zoom:.9}}@media screen and (max-width:1490px){.open-courses-side{zoom:.7}}.open-courses-side__item{width:112px;font-size:16px;line-height:1;text-align:center}.open-courses-side__item--qrcode .qrcode-img{background-color:#6ef9ff;border:4px solid #6ef9ff}.open-courses-side__item--qrcode .qrcode-title{margin-top:12px}.open-courses-side__item--backtop{display:flex;justify-content:center;align-items:center;margin-top:10px;padding-left:2px;border-top:solid 1px #6ef9ff;padding-top:10px;cursor:pointer}.open-courses-side__item .icon-arrow-t{margin-left:6px;border-bottom:6px solid #ffffff;border-left:6px solid transparent;border-right:6px solid transparent}.m-video-pop{background-color:#0009;position:fixed;top:0;left:0;right:0;bottom:0;z-index:9999}.m-video-pop iframe{display:block;border:none;width:1170px;height:650px}.m-video-pop__wrap{width:1170px;height:650px;position:absolute;top:50%;left:50%;margin:-325px 0 0 -585px}@media screen and (max-width:1300px){.m-video-pop__wrap{zoom:.9}}@media screen and (max-height:650px){.m-video-pop__wrap{zoom:.9}}.m-video-pop__close{position:absolute;top:0;right:-40px;font-size:30px;cursor:pointer;color:#fff}.open-courses-container{min-height:calc(100vh - 466px);min-width:1200px;color:#fefefe;background:url(https://xyp.qpic.cn/remix-gameinstitute/assets/dec-ship-DketT8Xn.png) no-repeat 21px 1067px,url(https://xyp.qpic.cn/remix-gameinstitute/assets/dec-lift-Br3Ty04Q.png) no-repeat right bottom,url(https://xyp.qpic.cn/remix-gameinstitute/assets/dec-left-DsRrn9v-.png) no-repeat 15px 1106px,url(https://xyp.qpic.cn/remix-gameinstitute/assets/dec-right-CAjegMz-.png) no-repeat right 15px top 1086px;background-color:#3871c8}.linear-frame{width:1184px;padding:1px;background-color:#2daad9;clip-path:polygon(0 0,100% 0,100% calc(100% - 16px),calc(100% - 16px) 100%,0 100%,0 0)}.linear-frame__inner{padding:30px 20px 40px;background:linear-gradient(to right,#4685d9,#4685d9 50%,#658bdc);clip-path:polygon(0 0,100% 0,100% calc(100% - 16px),calc(100% - 16px) 100%,0 100%,0 0)}.flex-row{display:flex;flex-direction:row}.flex-col{display:flex;flex-direction:column}.justify-start{display:flex;justify-content:flex-start}.justify-center{display:flex;justify-content:center}.justify-end{display:flex;justify-content:flex-end}.justify-between{display:flex;justify-content:space-between}.items-start{display:flex;align-items:flex-start}.items-center{display:flex;align-items:center}.items-end{display:flex;align-items:flex-end}.m-loginpop__wrapper .login-tips{font-size:14px;color:#f11d12;display:inline-block;margin-top:10px}