.proportion-figure{max-width:480px;margin:20px auto}.proportion-figure svg{display:block;width:100%;height:auto}.proportion-figure :is(path,rect){fill:none;stroke:var(--ink);stroke-width:2.5}.proportion-figure text{font:22px system-ui;fill:var(--ink)}.proportion-figure .proportion-dark{fill:var(--ink)}.proportion-figure .proportion-light{fill:var(--bg2)}.proportion-figure .proportion-grid{stroke:#c3cbd4;stroke-width:1}.proportion-figure .proportion-rule{stroke-width:4}.proportion-figure .proportion-guide{stroke-dasharray:5 5;stroke-width:1.5}.proportion-figure .proportion-point{fill:var(--ink);stroke:none}.proportion-table{margin:20px 0;overflow-x:auto}.proportion-table table{font-size:calc(15px * var(--lesson-scale,1));width:100%;border-collapse:collapse;table-layout:fixed;font-variant-numeric:tabular-nums}.proportion-table th,.proportion-table td{padding:10px 8px;border-bottom:1px solid var(--line);text-align:right;overflow-wrap:anywhere}.proportion-table caption{text-align:left;font-weight:600;margin-bottom:8px}.proportion-table th{font-size:.85em;color:var(--ink2)}.proportion-table td{font-size:.95em}
@media(max-width:600px){.proportion-figure text{font-size:28px}.proportion-lab .arithmetic-equation{font-size:.95em}}