.stage-label.fse-off{display:none!important}.exhibit[data-slug=four-stroke-engine] .stage-label-text{font-family:var(--sans);letter-spacing:0;font-size:12.5px}.exhibit[data-slug=four-stroke-engine] .stage-hint{font-family:var(--sans);letter-spacing:0}.exhibit[data-slug=four-stroke-engine] .panel-tab,.exhibit[data-slug=four-stroke-engine] .ctl-name,.exhibit[data-slug=four-stroke-engine] .ctl-range output,.exhibit[data-slug=four-stroke-engine] .tour-n,.exhibit[data-slug=four-stroke-engine] .tour-count{font-family:var(--sans);letter-spacing:0;text-transform:none;font-variant-numeric:tabular-nums}.exhibit[data-slug=four-stroke-engine] .ctl-name{font-size:13px;font-weight:600}.exhibit[data-slug=four-stroke-engine] .ctl-range output{font-size:14px}.fse-ro{z-index:2;min-width:214px;gap:4px;font:500 13px/1.35 var(--sans);letter-spacing:0}.fse-ro .ro-k{text-transform:none;letter-spacing:0}.fse-ro [data-r]{font-variant-numeric:tabular-nums;text-align:end;unicode-bidi:plaintext}.fse-ro b[data-r=stroke]{font-size:14px}.fse-ro canvas.fse-pv{width:214px;height:121px}.fse-ro canvas.fse-tq{width:214px;height:70px}.fse-pick{display:grid;gap:8px}.fse-pick[hidden]{display:none}.fse-pick select{min-height:44px;width:100%;padding:0 10px;font:500 14px/1.2 var(--sans);color:var(--ink);background:#fff;border:1px solid var(--rule-2);border-radius:0}.fse-pick-note{font:400 13px/1.45 var(--sans);color:var(--ink-2)}.fse-pick-note:empty{display:none}.fse-lab{padding:4px 18px 22px;display:grid;gap:10px;border-top:1px solid var(--rule)}.fse-lab-h{margin:14px 0 0;font:600 15px/1.3 var(--sans);color:var(--ink)}.fse-lab-p{margin:0;font:400 13px/1.5 var(--sans);color:var(--ink-2)}.fse-lab canvas{display:block;width:100%;height:auto;background:#fbfaf6;border:1px solid var(--rule)}.fse-lab canvas.fse-dial{max-width:300px;justify-self:center;touch-action:none;cursor:grab}.fse-lab canvas.fse-dial:active{cursor:grabbing}.fse-lab canvas.fse-bars{cursor:pointer}.fse-lab-rows{display:grid;gap:4px}.fse-lab-row{display:flex;justify-content:space-between;gap:12px;font:400 14px/1.4 var(--sans);color:var(--ink-2)}.fse-lab-row b{font-weight:600;color:var(--ink);font-variant-numeric:tabular-nums;text-align:end;unicode-bidi:plaintext}.fse-btns{display:grid;grid-template-columns:1fr 1fr;gap:6px}.fse-btn{appearance:none;min-height:44px;padding:0 10px;border:1px solid var(--rule-2);background:#fff;font:500 13.5px/1.2 var(--sans);color:var(--ink);cursor:pointer}.fse-btn:hover{background:var(--paper)}.fse-model{width:100%}.fse-btn[data-vt="0"]{grid-column:1 / -1}.fse-gaskey{position:absolute;inset-inline-start:12px;bottom:40px;z-index:2;display:flex;flex-wrap:wrap;gap:4px 12px;max-width:calc(100% - 200px);padding:7px 10px;background:#f8f6f1ed;border:1px solid var(--rule-2);font:500 12.5px/1.2 var(--sans);color:var(--ink);pointer-events:none}.fse-gaskey[hidden]{display:none}.fse-gaskey span{display:inline-flex;align-items:center;gap:6px;white-space:nowrap}.fse-gaskey i{width:11px;height:11px;border-radius:50%;display:inline-block}.fse-two{position:absolute;inset-inline-end:12px;bottom:44px;z-index:2;width:156px;height:198px;pointer-events:none}.fse-two[hidden]{display:none}.fse-ro .fse-tag{font-style:normal;font-size:10.5px;padding:0 4px;margin-inline-start:2px;border:1px solid var(--rule-2);color:var(--ink-2);vertical-align:1px}.fse-warn{color:#c0391b!important;font-weight:700}.fse-v3{display:grid;gap:4px;padding:4px 18px 8px;border-top:1px solid var(--rule)}.fse-sec{display:grid;gap:10px;padding-bottom:14px;border-bottom:1px solid var(--rule)}.fse-sec:last-child{border-bottom:0}.fse-search{min-height:44px;width:100%;padding:0 12px;font:400 15px/1.2 var(--sans);color:var(--ink);background:#fff;border:1px solid var(--rule-2);border-radius:0}.fse-chips,.fse-zoom{display:flex;flex-wrap:wrap;gap:6px}.fse-chip{appearance:none;min-height:44px;padding:0 12px;border:1px solid var(--rule-2);background:#fff;font:500 13.5px/1.2 var(--sans);color:var(--ink);cursor:pointer;font-variant-numeric:tabular-nums}.fse-chip[aria-pressed=true]{background:var(--ink);color:#fff;border-color:var(--ink)}.fse-count{margin:0;font:400 13px/1.4 var(--sans);color:var(--ink-2)}.fse-cards{display:flex;flex-direction:column;gap:6px;max-height:420px;overflow-y:auto;overscroll-behavior:contain;padding-inline-end:2px}.fse-card{appearance:none;flex:none;height:auto;display:grid;gap:2px;text-align:start;min-height:44px;padding:9px 12px;border:1px solid var(--rule-2);background:#fff;cursor:pointer;font:400 13px/1.4 var(--sans);color:var(--ink-2)}.fse-card b{font:600 14px/1.3 var(--sans);color:var(--ink)}.fse-card span{font-variant-numeric:tabular-nums;unicode-bidi:plaintext}.fse-card em{font-style:normal;color:var(--ink-2)}.fse-card.is-on{border-color:#e0451b;box-shadow:inset 3px 0 #e0451b}.fse-detail{margin:0;padding:10px 12px;background:var(--paper);border:1px solid var(--rule);font:400 13.5px/1.5 var(--sans);color:var(--ink)}.fse-detail a{color:var(--ink)}.fse-zcap{margin:0;padding:10px 12px;background:var(--paper);border-inline-start:3px solid #e0451b;font:400 14px/1.5 var(--sans);color:var(--ink)}.fse-range{display:grid;grid-template-columns:1fr auto;align-items:center;gap:4px 10px;font:500 13.5px/1.3 var(--sans);color:var(--ink)}.fse-range output{font-variant-numeric:tabular-nums;font-weight:600}.fse-range input{grid-column:1 / -1;width:100%;min-height:44px;accent-color:#e0451b}.fse-tog[aria-pressed=true]{background:var(--ink);color:#fff;border-color:var(--ink)}.fse-go{grid-column:1 / -1}.fse-warnp{margin:0;padding:8px 10px;border:1px solid #c0391b;color:#a3301a;font:500 13.5px/1.45 var(--sans)}.fse-limit{color:var(--ink-2)}.fse-tasks{padding:4px 18px 22px;border-top:1px solid var(--rule)}.fse-tprog{margin:0;font:600 13.5px/1.3 var(--sans);color:var(--ink);font-variant-numeric:tabular-nums}.fse-task{padding:10px 12px;border:1px solid var(--rule-2);background:#fff;display:grid;gap:6px}.fse-task h4{margin:0;font:600 14px/1.35 var(--sans);color:var(--ink)}.fse-task p{margin:0;font:400 13.5px/1.5 var(--sans);color:var(--ink-2)}.fse-tn{display:inline-grid;place-items:center;min-width:22px;height:22px;margin-inline-end:4px;border:1px solid var(--rule-2);font:600 12px/1 var(--sans);font-variant-numeric:tabular-nums}.fse-task.is-done{border-color:#3d8a4a}.fse-task.is-done .fse-tn{background:#3d8a4a;border-color:#3d8a4a;color:#fff}.fse-tdone{font-style:normal;font-weight:600;color:#3d8a4a;margin-inline-start:4px}.fse-tfb{margin:0;color:#a3301a!important}.fse-tfb:empty{display:none}.fse-banner{position:absolute;top:12px;left:50%;transform:translate(-50%);z-index:3;max-width:min(460px,calc(100% - 520px));padding:7px 14px;background:#16150fdb;color:#fff;font:600 14px/1.35 var(--sans);text-align:center;pointer-events:none}.fse-banner[hidden]{display:none}@media(max-width:1100px){.fse-banner{max-width:calc(100% - 300px)}}@media(max-width:600px){.fse-ro{transform:none;inset-inline-start:8px;top:8px;min-width:0;width:148px;padding:6px 8px;gap:2px;font-size:11.5px}.fse-ro .ro-row{gap:6px}.fse-ro .fse-m{display:none}.fse-ro [data-r=eng],.fse-ro [data-r=fire]{font-size:11px}.fse-ro canvas.fse-pv{width:132px;height:75px}.fse-ro canvas.fse-tq{display:none}.exhibit[data-slug=four-stroke-engine] .stage-label-text{font-size:11px;padding:3px 5px}.exhibit[data-slug=four-stroke-engine] .stage-hint{display:none}.fse-gaskey{inset-inline-start:8px;bottom:8px;max-width:calc(100% - 128px);padding:5px 7px;gap:3px 8px;font-size:11px}.fse-two{inset-inline-end:8px;bottom:8px;width:104px;height:132px}.fse-banner{top:auto;bottom:64px;max-width:calc(100% - 24px);font-size:12.5px;padding:6px 10px}.fse-v3,.fse-tasks{padding-inline:14px}.fse-cards{max-height:340px}}