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60px);transition:width var(--d-time) var(--d-ease), max-height var(--d-time) var(--d-ease);border:0;top:30px;overflow:hidden auto}.lesson-scope.m-cr .m-lessonview .m-rail>*{flex:none}.lesson-scope.m-cr .m-lessonview :is(.m-rail__brand,.m-rail__sub,.m-rail__title,.m-rail__chap,.m-rail__pep){width:calc(var(--d-rw) - 44px)}.lesson-scope.m-cr .m-lessonview :is(.m-rail__sub,.m-rail__title,.m-rail__chap,.m-rail__pep){transition:max-height var(--d-time) var(--d-ease), opacity .2s ease .1s, margin var(--d-time) var(--d-ease), padding var(--d-time) var(--d-ease), border-color .2s ease;overflow:hidden}.lesson-scope.m-cr .m-lessonview .m-rail__sub{max-height:40px}.lesson-scope.m-cr .m-lessonview .m-rail__title{max-height:90px}.lesson-scope.m-cr .m-lessonview .m-rail__chap{max-height:50px}.lesson-scope.m-cr .m-lessonview .m-rail__pep{max-height:130px}.lesson-scope.m-cr .m-lessonview .m-rail__brand{transition:color .2s .1s}.lesson-scope.m-cr .m-lessonview .m-rail__brand .m-brand__mark{transition:opacity .2s .14s}.lesson-scope.m-cr .m-lessonview .m-road{transition:margin var(--d-time) var(--d-ease)}.lesson-scope.m-cr .m-lessonview .m-road__it{transition:padding var(--d-time) var(--d-ease)}.lesson-scope.m-cr .m-lessonview .m-road__tl{width:calc(var(--d-rw) - 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392px)}}@media (prefers-reduced-motion:reduce){.lesson-scope.m-cr .m-lessonview,.lesson-scope.m-cr .m-lessonview .m-rail,.lesson-scope.m-cr .m-lessonview .m-rail *,.lesson-scope.m-cr .m-lessonview .m-rail :before{transition:none!important}}