.abody h3{font-family:var(--f-read);font-weight:500;font-size:var(--step-1);margin:1.1rem 0 .3rem}.abasics ul{gap:.25rem;margin:0;padding-left:1.2rem;display:grid}.anote{font-size:var(--step--1);color:var(--muted);margin:0 0 .5rem}.agrid,.arow{grid-template-columns:repeat(auto-fill,minmax(5.4rem,1fr));gap:.4rem;display:grid}.arow{grid-template-columns:repeat(5,minmax(0,1fr))}.tray .ac .sx{font-size:1.5rem}.tray .ac small{font-size:.68rem}.atable .as{color:var(--muted);margin-top:.15rem;font-size:.75rem;display:block}.arow-l{font-size:var(--step--1);color:var(--lamp);margin:.6rem 0 .25rem;font-weight:700}.ac{border:1px solid var(--rule);background:var(--paper-2);text-align:center;border-radius:8px;align-content:start;justify-items:center;gap:.1rem;padding:.45rem .3rem;display:grid}.ac .sx{font-size:1.7rem;line-height:1.35}.ac .sx.on{color:var(--lamp)}.ac b{font-family:var(--f-read);font-style:italic;font-weight:400}.ac small{color:var(--muted);font-size:.72rem;line-height:1.3}.atable-wrap{overflow-x:auto}.atable{border-collapse:collapse;width:100%;font-size:var(--step--1)}.atable th{text-align:left;color:var(--muted);border-bottom:1px solid var(--rule);padding:.35rem .4rem}.atable td{border-bottom:1px solid var(--rule);vertical-align:middle;padding:.3rem .4rem}.atable .af{text-align:center}.atable .af .sx{font-size:1.8rem;line-height:1.5}.atable .ar{font-family:var(--f-read);font-style:italic}.atable .as{color:var(--muted);max-width:16rem}.sx{font-weight:400}.hg .lsx{font-size:clamp(2rem,7vw,3.2rem);line-height:1.4}.hg .rom{font-family:var(--f-read);color:var(--muted);font-style:italic}.hg .tile2{all:unset;box-sizing:border-box;cursor:pointer;border:1.5px solid var(--rule);background:var(--paper-2);text-align:center;border-radius:8px;place-items:center;gap:.15rem;min-width:3rem;min-height:3.6rem;padding:.3rem .5rem;display:grid}.hg .tile2:focus-visible{outline:2px solid var(--focus);outline-offset:2px}.hg .tile2[aria-pressed=true]{border-color:var(--lamp);background:var(--lamp-soft)}.hg .choices{grid-template-columns:repeat(2,minmax(0,1fr));gap:.6rem;width:100%;max-width:34rem;margin:0 auto;display:grid}.hg .choice{all:unset;box-sizing:border-box;cursor:pointer;text-align:center;border:1.5px solid var(--rule);min-height:3.2rem;font-family:var(--f-read);font-size:var(--step-1);background:var(--paper);border-radius:10px;padding:.75rem .9rem}.hg .choice:hover:not(:disabled){border-color:var(--lamp)}.hg .choice:focus-visible{outline:2px solid var(--focus);outline-offset:2px}.hg .choice:disabled{cursor:default}.hg .choice.right{border-color:var(--lamp);background:var(--lamp-soft)}.hg .choice.wrong{opacity:.75;border-style:dashed}.hg .after{gap:.5rem;width:100%;max-width:40rem;margin:0 auto;display:grid}.hg .after p{margin:0}.hg .after .btn{justify-self:start}.hg .lettertbl{flex-wrap:wrap;justify-content:center;gap:.4rem;display:flex}.hg .lt{border:1px solid var(--rule);background:var(--paper-2);border-radius:8px;justify-items:center;gap:.1rem;min-width:3.4rem;padding:.4rem;display:grid}.hg .lt .sx{font-size:1.6rem;line-height:1.3}.hg .lt small{font-family:var(--f-ui);color:var(--muted);text-align:center;max-width:9rem;font-size:.75rem}.hg .center-wrap{text-align:center;justify-items:center;gap:.6rem;display:grid}.hg .explain{font-size:var(--step--1);color:var(--ink);text-align:center;gap:.15rem;margin:0;padding:0;list-style:none;display:grid}@media (width<=520px){.hg .choices{grid-template-columns:minmax(0,1fr)}.arow{grid-template-columns:repeat(3,minmax(0,1fr))}}