.pc-board,.pc-static{min-width:0;max-width:var(--reading-width);margin-inline:auto}.pc-board h3{font-size:18px}.pc-board p,.pc-static p,.pc-static figcaption,.pc-board label,.lesson-content [data-charging-source] p,.lesson-content [data-charging-exam-block] p{font-size:var(--text-body);line-height:1.85}.pc-stage-note,.pc-grid-note{color:var(--muted)}.pc-facts{grid-template-columns:repeat(2,minmax(0,1fr));gap:8px;margin:12px 0;display:grid}.pc-facts p{border:1px solid var(--line);background:var(--surface);border-radius:6px;margin:0;padding:8px 10px}.pc-facts strong{font-size:18px;display:block}.pc-target-label{grid-column:1/-1}.pc-grid{width:100%;max-width:420px;height:auto;margin-inline:auto;display:block}.pc-cell{fill:var(--surface);stroke:var(--line-strong);stroke-width:1px}.pc-original{fill:var(--ink)}.pc-target-cell{fill:none;stroke:var(--ink);stroke-width:2px;stroke-dasharray:4 3}.pc-growth-arrow{fill:none;stroke:var(--ink);stroke-width:2px}.pc-legend{flex-wrap:wrap;align-items:center;gap:4px;display:flex}.pc-solid-key,.pc-striped-key{border:1px solid var(--ink);width:20px;height:16px;display:inline-block}.pc-solid-key{background:var(--ink)}.pc-striped-key{background:repeating-linear-gradient(45deg,var(--accent-soft),var(--accent-soft) 3px,var(--accent) 3px,var(--accent) 5px)}.pc-relation{border:1px solid var(--line);border-radius:var(--radius);background:var(--surface-soft);font-size:var(--text-body);overflow-wrap:anywhere;padding:12px}.pc-board label{margin:16px 0;display:block}.pc-board input[type=range],.pc-board select{width:100%;min-height:44px;margin-top:8px;display:block}.pc-actions{flex-wrap:wrap;gap:10px;margin:14px 0;display:flex}.pc-static{border:1px solid var(--line);border-radius:var(--radius);background:var(--surface);padding:12px}.pc-static figcaption{font-weight:700}.charging-fraction{font-size:22px}.pc-actions .button{min-height:44px}.pc-key{align-items:center;gap:5px;display:inline-flex}