.arb-grid6{display:flex;gap:10px;margin:18px 0 4px}.arb-grid6 .arb-cell{width:46px;height:56px;border-radius:10px;background:var(--a-paper);color:var(--a-ink);display:flex;align-items:center;justify-content:center;font-family:var(--a-disp);font-weight:800;font-size:1.35rem;font-variant-numeric:tabular-nums;box-shadow:0 8px 20px #00000073}.arb-grid6 .arb-cell.hl{background:var(--a-ember);color:#160a04}.arb-rules{display:flex;flex-direction:column;gap:10px;margin-top:12px}.arb-rule{display:flex;gap:10px;font-size:.84rem;color:var(--a-mute);line-height:1.5}.arb-rule b{flex:none;width:20px;height:20px;border-radius:6px;display:inline-flex;align-items:center;justify-content:center;font-size:.72rem;background:var(--a-ember-soft);color:var(--a-ember-dim)}.board-note{margin-top:12px;margin-bottom:0;font-size:.76rem;line-height:1.5}@media(max-width:560px){.arb-grid6{gap:8px}.arb-grid6 .arb-cell{width:38px;height:46px;font-size:1.15rem;border-radius:8px}}