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h3{font-family:var(--serif);font-size:38px;font-weight:400;line-height:1.1;letter-spacing:-.8px}.lx-pronunciation{font-size:10px;color:#78806a;margin-top:8px}.lx-part-card>#lx-part-description{font-size:13px;line-height:1.85;margin-top:20px;min-height:73px;color:#596a50}.lx-fact{background:#f0f3e8;border:1px solid #e1e7d6;padding:14px 17px;border-radius:8px;margin-top:22px}.lx-fact>span{font-size:8px;letter-spacing:1.4px;color:#687b56;font-weight:600}.lx-fact>p{font-size:12px;line-height:1.7;margin-top:5px;color:#405836}.lx-part-bottom{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-top:auto;padding-top:25px}.lx-part-bottom>a{font-size:10px;color:#677853;text-decoration:underline;text-underline-offset:4px}.lx-part-bottom>button{background:#284b41;color:#f6f8ee;border:0;border-radius:6px;padding:12px 15px;font-size:11px;display:flex;align-items:center;gap:14px}.lx-part-bottom>button:hover{background:#386053}.lx-discovery-done{display:flex;align-items:center;gap:15px;padding:17px 24px;background:#e9f0df;border:1px solid #ccdabd;border-radius:9px;margin-top:15px}.lx-discovery-done>span{font-size:30px;color:#6b8759}.lx-discovery-done strong{font-size:14px;font-weight:600}.lx-discovery-done p{font-size:11px;color:#5a6f4f;margin-top:2px}.lx-discovery-done a{margin-left:auto;font-size:11px;border-bottom:1px solid #839773;white-space:nowrap}.lx-journey{margin-top:34px;padding:30px;border:1px solid #dfe3d5;border-radius:13px;background:#f5f5ee}.lx-journey-heading{display:flex;justify-content:space-between;align-items:flex-end;gap:20px}.lx-journey-heading .tag{font-size:8px;color:#657953}.lx-journey-heading 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#d9e0cf;padding-top:22px;min-height:111px}.lx-molecule{height:53px;width:53px;flex-shrink:0;display:grid;place-items:center;border-radius:50%;background:#dce7d1;color:#4e6b3b;border:1px solid #c5d6b5;font-size:13px;font-weight:600}.lx-journey-detail h4{font-size:14px;margin:0 0 7px;font-weight:600;color:#314c2c}.lx-journey-detail p{font-size:12px;line-height:1.8;color:#5d6c51;max-width:750px}.lx-journey-detail button{margin-left:auto;white-space:nowrap;background:transparent;border:0;border-bottom:1px solid #98a889;padding:8px 0;color:#375330;font-size:11px;display:flex;align-items:center;gap:10px}.lx-science-note{font-size:10px;margin-top:24px}.lx-science-note a{margin-left:9px}
@media(min-width:1450px){.lx-model{max-width:490px}.lx-mini-art{height:192px}.lx-mini-art svg{height:170px}}
@media(max-width:900px){.lx-workspace{grid-template-columns:1fr 1fr}.lx-model-column{padding:20px 17px}.lx-model-top{flex-wrap:wrap;gap:8px}.lx-model-top .tag{font-size:8px}.lx-progress{font-size:9px}.lx-part-card{padding:25px}.lx-mini-art{height:128px;margin:10px 0}.lx-mini-art svg{height:125px;width:200px}.lx-part-card h3{font-size:34px}.lx-part-card>#lx-part-description{font-size:12px;min-height:85px}.lx-fact{margin-top:17px}.lx-part-category{font-size:8px}.lx-hotspot small{font-size:8px}.lx-hotspot>span{width:28px;height:28px;font-size:10px}.lx-breath-controls{padding:13px 12px}.lx-breath-label{flex-wrap:wrap;gap:3px}.lx-breath-controls>p{font-size:10px;min-height:48px}.lx-breath-row{gap:5px}.lx-part-bottom{flex-wrap:wrap}.lx-journey{padding:25px}.lx-stop{padding:13px 11px}.lx-stop strong{font-size:10px}.lx-stop small{font-size:9px}}
@media(max-width:680px){.lung-explorer .section-heading>p{font-size:12px}.lx-workspace{grid-template-columns:1fr}.lx-model-column{padding:20px}.lx-model-top{flex-wrap:nowrap}.lx-model{max-width:410px;margin-top:10px}.lx-model-top .tag{font-size:8px}.lx-progress{font-size:8px}.lx-hotspot small{font-size:9px}.lx-hs-alveoli{left:76%}.lx-model .lx-hotspot>span{width:29px;height:29px}.lx-anatomy-note{font-size:8px}.lx-breath-controls{margin-top:14px;padding:15px}.lx-breath-label{flex-wrap:nowrap}.lx-breath-label label{font-size:11px}.lx-breath-label>span{font-size:8px}.lx-breath-controls>p{min-height:32px;font-size:10px}.lx-breath-row{gap:8px}.lx-part-card{padding:24px;border-top:1px solid #dce2d3}.lx-mini-art{height:132px;margin:7px 0 13px}.lx-mini-art svg{height:125px}.lx-part-card h3{font-size:35px}.lx-pronunciation{font-size:10px}.lx-part-card>#lx-part-description{min-height:0;font-size:13px;margin-top:16px}.lx-fact{margin-top:20px}.lx-fact>p{font-size:12px}.lx-part-bottom{padding-top:22px;flex-wrap:nowrap}.lx-part-bottom>button{font-size:10px;padding:12px}.lx-part-bottom>a{font-size:9px}.lx-discovery-done{padding:16px;flex-wrap:wrap;gap:10px}.lx-discovery-done strong{font-size:13px}.lx-discovery-done p{font-size:10px}.lx-discovery-done a{margin-left:40px;font-size:10px}.lx-discovery-done>div{flex:1;min-width:160px}.lx-journey{margin-top:24px;padding:23px 20px}.lx-journey-heading{display:block}.lx-journey-heading h3{font-size:27px}.lx-journey-heading>p{margin-top:11px;font-size:11px}.lx-stops{grid-template-columns:1fr 1fr;gap:10px;margin-top:20px}.lx-stop{padding:13px}.lx-stop strong{font-size:11px}.lx-stop small{font-size:9px}.lx-journey-detail{gap:12px;align-items:flex-start;flex-wrap:wrap}.lx-molecule{height:41px;width:41px;font-size:11px}.lx-journey-detail>div{flex:1;min-width:140px}.lx-journey-detail h4{font-size:13px}.lx-journey-detail p{font-size:11px}.lx-journey-detail button{margin-top:2px;font-size:11px}.lx-science-note{font-size:9px;line-height:1.9}.lx-science-note a{white-space:normal;display:inline}}
@media(max-width:360px){.lx-model-column{padding:17px 12px}.lx-model-top .tag{font-size:7px;letter-spacing:.7px}.lx-progress{font-size:7px;padding:4px 6px}.lx-breath-label{flex-wrap:wrap}.lx-hs-cilia{left:21%}.lx-hotspot{gap:4px}.lx-hotspot small{font-size:8px;padding:4px}.lx-model .lx-hotspot>span{width:26px;height:26px}.lx-part-card{padding:21px}.lx-part-bottom{flex-wrap:wrap}.lx-journey{padding:21px 16px}.lx-stop strong{font-size:10px}.lx-stop-arrow{right:10px}.lx-journey-detail>div{min-width:120px}}
@media(prefers-reduced-motion:reduce){.lx-organ,.lx-hotspot>span,.lx-stop{transition:none}}
@media print{.lx-workspace{display:block}.lx-model-column{max-width:480px;margin:auto}.lx-hotspot{display:none}.lx-breath-controls,.lx-part-bottom,.lx-discovery-done,.lx-journey-detail button{display:none}.lx-part-card{break-inside:avoid}.lx-model{max-width:320px}.lx-mini-art{height:90px}.lx-mini-art svg{height:90px}.lx-stops{grid-template-columns:repeat(4,1fr)}}
.lx-part-card{scroll-margin-top:110px}@media(max-width:600px){.lx-part-card{scroll-margin-top:86px}}