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.CoursePlayer-module__lS3BQq__layout{grid-template-columns:minmax(0,1fr) 340px;align-items:start;gap:24px;display:grid}@media (max-width:940px){.CoursePlayer-module__lS3BQq__layout{grid-template-columns:1fr}}.CoursePlayer-module__lS3BQq__main{min-width:0}.CoursePlayer-module__lS3BQq__meta{margin-top:18px}.CoursePlayer-module__lS3BQq__lesson{font-family:var(--font-mono-stack);letter-spacing:.12em;text-transform:uppercase;color:var(--t-accent);font-size:.72rem}.CoursePlayer-module__lS3BQq__title{letter-spacing:-.02em;color:var(--t-text);margin:.4rem 0 .6rem;font-size:clamp(1.4rem,3vw,2rem);font-weight:700}.CoursePlayer-module__lS3BQq__desc{color:var(--t-text-soft);white-space:pre-wrap;margin:0;font-size:.98rem;line-height:1.65}.CoursePlayer-module__lS3BQq__empty{color:var(--t-text-mute)}.CoursePlayer-module__lS3BQq__playlist{border:1px solid var(--t-border);background:var(--t-surface);border-radius:16px;flex-direction:column;max-height:calc(100dvh - 110px);display:flex;position:sticky;top:90px;overflow:hidden}@media (max-width:940px){.CoursePlayer-module__lS3BQq__playlist{max-height:520px;position:static}}.CoursePlayer-module__lS3BQq__plHead{border-bottom:1px solid var(--t-border);justify-content:space-between;align-items:baseline;gap:8px;padding:14px 16px;display:flex}.CoursePlayer-module__lS3BQq__plHead strong{color:var(--t-text);font-size:.95rem}.CoursePlayer-module__lS3BQq__plHead span{color:var(--t-text-mute);white-space:nowrap;font-size:.78rem}.CoursePlayer-module__lS3BQq__plList{margin:0;padding:6px;list-style:none;overflow-y:auto}.CoursePlayer-module__lS3BQq__plItem{text-align:left;cursor:pointer;background:0 0;border:0;border-radius:10px;align-items:center;gap:10px;width:100%;padding:8px;transition:background .12s;display:flex}.CoursePlayer-module__lS3BQq__plItem:hover{background:var(--t-bg)}.CoursePlayer-module__lS3BQq__plItem[data-active=true]{background:color-mix(in oklab, var(--t-accent) 14%, transparent)}.CoursePlayer-module__lS3BQq__plNum{text-align:center;width:18px;color:var(--t-text-mute);flex:none;font-size:.8rem;font-weight:600}.CoursePlayer-module__lS3BQq__plItem[data-active=true] .CoursePlayer-module__lS3BQq__plNum{color:var(--t-accent)}.CoursePlayer-module__lS3BQq__plThumbWrap{aspect-ratio:16/9;background:var(--t-bg);border-radius:7px;flex:none;width:84px;overflow:hidden}.CoursePlayer-module__lS3BQq__plThumb{object-fit:cover;width:100%;height:100%;display:block}.CoursePlayer-module__lS3BQq__plText{flex-direction:column;gap:3px;min-width:0;display:flex}.CoursePlayer-module__lS3BQq__plTitle{color:var(--t-text);-webkit-line-clamp:2;-webkit-box-orient:vertical;font-size:.86rem;font-weight:500;line-height:1.3;display:-webkit-box;overflow:hidden}.CoursePlayer-module__lS3BQq__plDur{color:var(--t-text-mute);font-size:.72rem}