.rk-3d{background:#e8edf3;height:clamp(300px,56vw,480px)}.rk-3d .lm-3d-msg{color:#334155}.rk-player{gap:8px;min-width:0;display:grid}.rk-bar{flex-wrap:wrap;align-items:center;gap:8px;display:flex}.rk-bar select{min-height:44px}.rk-scrub-row{grid-template-columns:minmax(0,1fr) auto;align-items:center;gap:12px;display:grid}.rk-scrub{width:100%;min-height:44px}.rk-clock{font-variant-numeric:tabular-nums;color:var(--muted);white-space:nowrap;font-size:.84rem}.rk-code{max-height:340px}.rk-ta{tab-size:2;white-space:pre;min-height:220px;font:.8rem/1.55 ui-monospace,JetBrains Mono,Menlo,Consolas,monospace;overflow:auto}.rk-root .rb-sim .readout.log.rk-err{border-color:var(--red);color:var(--red)}.rk-root .rb-sim .sbtn,.rk-root .rb-sim .rk-bar select,.rk-root .rb-sim .sl select{min-height:44px}.rk-root .rb-sim input[type=range]{min-height:32px}.rk-note{border-left:3px solid var(--eng);background:var(--eng-soft);border-radius:0 8px 8px 0;margin:10px 0 0;padding:10px 12px;font-size:.9rem}.rk-prereq{gap:8px;display:grid}.rk-prereq li{overflow-wrap:anywhere}@media (max-width:600px){.rk-3d{height:clamp(260px,78vw,360px)}.rk-scrub-row{grid-template-columns:minmax(0,1fr)}}