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a{text-underline-offset:3px;text-decoration:underline}.hub-intro{grid-template-columns:repeat(2,minmax(0,1fr));gap:46px;padding-top:36px;display:grid}.hub-intro .reading-section{border-bottom:0;margin-bottom:24px;padding-bottom:8px}.hub-group{margin:36px 0 42px}.hub-group[data-category=help] .reading-cards,.hub-group[data-category=tutorial] .reading-cards{grid-template-columns:repeat(2,minmax(0,1fr))}.reading-cards{grid-template-columns:repeat(3,minmax(0,1fr));gap:16px;display:grid}.reading-card{border:1px solid var(--line);background:var(--paper);min-width:0;color:var(--text);border-radius:6px;flex-direction:column;padding:24px;display:flex}.reading-card:hover{border-color:var(--green)}.reading-card h3{overflow-wrap:anywhere;margin:14px 0 12px;font-size:18px;font-weight:600;line-height:1.5}.reading-card p{color:var(--text-secondary);margin-bottom:24px;font-size:13px;line-height:1.85}.reading-card-link{color:var(--green-strong);margin-top:auto;font-size:11px}.reading-card-link>span{float:right}.reading-cta{background:var(--panel);border:1px solid var(--line);border-radius:6px;justify-content:space-between;align-items:center;gap:30px;margin:30px 0 50px;padding:32px;display:flex}.reading-cta h2{margin:12px 0;font-size:25px;font-weight:600;line-height:1.4}.reading-cta p{color:var(--text-secondary);max-width:600px;font-size:14px;line-height:1.8}.reading-button{min-height:48px;color:var(--on-accent);background:var(--green);border-radius:4px;flex-shrink:0;gap:26px;padding:15px 20px;font-size:13px;font-weight:600;display:inline-flex}.reading-shell .reading-button:hover{color:var(--on-accent);background:var(--play-active)}.reading-table{border:1px solid var(--line);background:var(--paper);border-radius:4px;max-width:100%;margin-top:24px;overflow-x:auto}.reading-table table{border-collapse:collapse;text-align:left;width:100%;min-width:440px;font-size:12px;line-height:1.7}.reading-table caption{text-align:left;color:var(--text-secondary);padding:14px;font-weight:600}.reading-table th,.reading-table td{border-top:1px solid var(--line-soft);vertical-align:top;padding:12px 14px}.reading-table th{font-weight:600}.reading-table thead{background:var(--panel);color:var(--text-secondary)}.lesson-diagram{margin:24px 0}.lesson-diagram .reading-table{margin-top:0}.lesson-diagram figcaption{color:var(--muted);margin-top:12px;font-size:12px;line-height:1.8}.reading-table .beat-diagram{font-variant-numeric:tabular-nums;min-width:580px}.beat-diagram td,.beat-diagram th:not(:first-child){text-align:center;padding:10px 4px}.beat-diagram .on-beat{border-left:1px solid var(--line)}.beat-diagram td{color:var(--faint);position:relative}.beat-diagram .hit{background:var(--step-background)}.beat-diagram .hit-0{color:var(--red)}.beat-diagram .hit-1{color:var(--blue)}.beat-diagram .hit-2{color:var(--green-strong)}.arrangement-diagram{grid-template-columns:repeat(4,minmax(0,1fr));gap:12px;margin:0;padding:0;list-style:none;display:grid}.arrangement-diagram li{border:1px solid var(--line);border-top:3px solid var(--red);background:var(--paper);border-radius:4px;flex-direction:column;gap:8px;padding:16px;display:flex}.arrangement-diagram li+li{margin-top:0}.arrangement-diagram [data-pattern=B]{border-top-color:var(--blue)}.arrangement-diagram [data-pattern=C]{border-top-color:var(--pink)}.arrangement-diagram small,.arrangement-diagram span{color:var(--text-secondary);font-size:11px}.arrangement-diagram strong{font-size:32px;font-weight:500;line-height:1.2}.skip-link{background:var(--paper);color:var(--text);z-index:100;padding:12px;position:absolute;top:-100px;left:20px}.skip-link:focus{top:10px}@media (width<=1000px){.reading-layout{grid-template-columns:180px minmax(0,1fr);gap:30px}.reading-cards{grid-template-columns:repeat(2,minmax(0,1fr))}}@media (width<=700px){.reading-shell{padding:0 20px}.reading-shell .header-right{flex-wrap:nowrap}.reading-shell #content-theme{min-width:44px;min-height:44px}.reading-language{padding-left:12px;font-size:11px}.reading-nav{flex-wrap:wrap;gap:18px;min-height:56px;font-size:11px}.reading-nav .reading-open{font-size:11px}.breadcrumbs{margin-top:22px;font-size:10px}.reading-hero{padding:28px 0 30px}.reading-hero h1{letter-spacing:-.8px;font-size:32px}.reading-deck{font-size:15px}.reading-meta{gap:14px;font-size:10px}.reading-layout{padding-top:25px;display:block}.reading-toc{max-height:none;margin-bottom:35px;padding:0;position:static}.reading-toc ol{grid-template-columns:repeat(2,minmax(0,1fr));gap:3px 12px;font-size:11px;display:grid}.reading-toc a{padding:5px 0 5px 10px}.reading-section{margin-bottom:28px;padding-bottom:28px}.reading-section h2,.hub-group>h2,.reading-related>h2{font-size:20px}.reading-section p,.reading-section li{font-size:14px}.hub-intro{grid-template-columns:1fr;gap:0;padding-top:28px}.hub-intro .reading-section{margin-bottom:18px}.reading-cards{grid-template-columns:1fr;gap:12px}.hub-group[data-category] .reading-cards{grid-template-columns:1fr}.reading-card{padding:22px}.reading-card h3{font-size:18px}.reading-cta{flex-direction:column;align-items:stretch;gap:22px;margin-bottom:35px;padding:24px}.reading-cta h2{font-size:22px}.reading-button{align-self:flex-start}.arrangement-diagram{gap:7px}.arrangement-diagram li{padding:12px 8px}.arrangement-diagram small,.arrangement-diagram span{font-size:10px}}