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var(--border-default);color:var(--text-primary);font-size:var(--text-xs);white-space:nowrap;text-decoration:none;display:inline-flex}._4O1xCq_heroArch{aspect-ratio:494/549;border-radius:var(--radius-pill) var(--radius-pill) var(--radius-lg) var(--radius-lg);background:var(--persona-hero-surface) url(/images/lesson-persona-ui/hero-gradient.webp) center / cover no-repeat;justify-self:end;width:100%;max-width:494px;position:relative;overflow:hidden}._4O1xCq_heroArch:before{content:"";background:var(--persona-hero-overlay);position:absolute;inset:0}._4O1xCq_courseIcon{z-index:1;aspect-ratio:224/338;border:5px solid var(--bg-surface);border-radius:0 var(--radius-lg) var(--radius-lg) 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a{color:var(--text-primary);font-family:var(--font-jp);font-size:var(--text-xs);letter-spacing:0;align-items:center;gap:14px;text-decoration:none;display:inline-flex}._4O1xCq_kicker{font-family:var(--font-mono);font-size:var(--text-2xs);letter-spacing:.1em;margin:0;line-height:1.5}._4O1xCq_overview{padding:var(--s-16) var(--content-inset)}._4O1xCq_overviewHead h2{margin:var(--s-6) 0 var(--s-10);font-family:var(--font-heading);font-size:var(--text-3xl);letter-spacing:-.055em;font-weight:700;line-height:1.45}._4O1xCq_overviewStack{align-items:flex-start;gap:var(--s-8);flex-direction:column;display:flex}._4O1xCq_overviewCopy{width:100%;max-width:740px;color:var(--text-primary);font-size:var(--text-md);line-height:2}._4O1xCq_overviewCopy p{margin:0 0 19px}._4O1xCq_overviewMedia{width:min(120%,888px)}._4O1xCq_mediaFrame{aspect-ratio:16/9;border:1px solid var(--persona-media-border);border-radius:var(--radius-lg);background:var(--bg-muted-strong);width:100%;position:relative;overflow:hidden}._4O1xCq_slideImage{object-fit:cover;width:100%;height:100%;display:block}._4O1xCq_slideThumbnails{gap:var(--s-2);grid-template-columns:repeat(5,minmax(0,1fr));padding-top:15px;display:grid}._4O1xCq_slideThumbnail{aspect-ratio:16/9;border-radius:var(--radius-sm);background:var(--bg-muted-strong);opacity:.58;border:2px solid #0000;width:100%;transition:border-color .18s,opacity .18s;position:relative;overflow:hidden}._4O1xCq_slideThumbnail:hover{opacity:.82}._4O1xCq_slideThumbnail[aria-current=true]{border-color:var(--text-link-hover);opacity:1}._4O1xCq_slideThumbnail img{object-fit:cover;width:100%;height:100%;display:block}._4O1xCq_section,._4O1xCq_splitSection{padding:var(--s-16) 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var(--text-link-hover);border-radius:var(--radius-full);color:var(--text-link-hover);flex:none;place-items:center;display:grid}._4O1xCq_questPanel[hidden]{display:none}._4O1xCq_articleList{margin:0;padding:0 15px 18px 59px;list-style:none;display:grid}._4O1xCq_articleItem{border-bottom:1px solid var(--border-light);min-width:0}._4O1xCq_articleItem:last-child{border-bottom:0}._4O1xCq_articleLink{min-width:0;color:var(--text-primary);grid-template-columns:24px 116px minmax(0,1fr) 52px 22px;align-items:center;gap:18px;margin:0 -12px;padding:14px 12px;text-decoration:none;display:grid}a._4O1xCq_articleLink:hover{background:var(--bg-hover);color:var(--text-primary)}._4O1xCq_articleNumber{color:var(--text-muted);font-family:var(--font-mono);font-size:var(--text-xs);line-height:1.5}._4O1xCq_articleThumbnail{aspect-ratio:16/9;border:1px solid var(--border-light);background:var(--bg-base);width:116px;display:block;position:relative;overflow:hidden}._4O1xCq_articleThumbnailImage{object-fit:cover}._4O1xCq_thumbnailPlay{z-index:1;border-radius:var(--radius-full);background:var(--persona-dark-overlay);width:30px;height:30px;color:var(--text-inverse);place-items:center;display:grid;position:absolute;top:50%;left:50%;transform:translate(-50%,-50%)}._4O1xCq_thumbnailPlay svg{margin-left:2px}._4O1xCq_thumbnailDuration{z-index:1;background:var(--persona-dark-overlay);min-height:19px;color:var(--text-inverse);font-family:var(--font-mono);font-size:var(--text-2xs);justify-content:center;align-items:center;padding:3px 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solid var(--border-light);display:flex}._4O1xCq_splitItem:last-child{border-bottom:0}._4O1xCq_splitItem>span{font-size:var(--text-md);flex:none;line-height:1.8}._4O1xCq_splitItem>._4O1xCq_splitNumber{min-width:26px;color:var(--text-muted);font-family:var(--font-mono);font-size:var(--text-13);line-height:2}._4O1xCq_splitItem h3,._4O1xCq_splitItem h4{margin:0 0 var(--s-1);font-family:var(--font-heading);font-size:var(--text-md);font-weight:500;line-height:1.8}._4O1xCq_splitItem p{color:var(--text-secondary);font-size:var(--text-sm);margin:0;line-height:1.88}._4O1xCq_author{max-width:510px}._4O1xCq_author img{width:var(--s-20);height:var(--s-20);margin-bottom:var(--s-6);border-radius:var(--radius-full);object-fit:cover;display:block}._4O1xCq_author h3{font-family:var(--font-heading);font-size:var(--text-lg);margin:0 0 2px;font-weight:600;line-height:1.8}._4O1xCq_author p{margin:0}._4O1xCq_author 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span{white-space:normal}._4O1xCq_heroLead{font-size:var(--text-sm)}._4O1xCq_heroActions{gap:var(--s-3);flex-wrap:wrap}._4O1xCq_slideThumbnails{overscroll-behavior-inline:contain;scrollbar-width:none;grid-template-columns:none;grid-auto-columns:112px;grid-auto-flow:column;overflow-x:auto}._4O1xCq_slideThumbnails::-webkit-scrollbar{display:none}._4O1xCq_heroActions{flex-direction:column;align-items:flex-start}._4O1xCq_heroFooter{font-size:7px}._4O1xCq_heroFooter a{font-size:var(--text-2xs)}._4O1xCq_overviewHead h2,._4O1xCq_sectionHeading h2,._4O1xCq_splitHead h2{font-size:var(--text-2xl)}._4O1xCq_questButton{gap:var(--s-4)}._4O1xCq_questNumber{font-size:var(--text-xl)}._4O1xCq_questTitleLine{font-size:var(--text-md)}._4O1xCq_articleLink{grid-template-columns:20px 96px minmax(0,1fr) 42px 18px;gap:7px}._4O1xCq_articleThumbnail{width:96px}._4O1xCq_articleAccess{min-width:42px}._4O1xCq_articleCopy 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