:root{color-scheme:dark;--bg:#090d12;--panel:#10161d;--muted:#91a0ad;--text:#edf1f1;--line:#28323a;--green:#b5f47b;--blue:#6f9fff;--serif:Georgia,'Songti SC','Noto Serif CJK SC',serif;font-family:Inter,-apple-system,BlinkMacSystemFont,'Segoe UI','PingFang SC','Microsoft Yahei',sans-serif;font-size:16px;color:var(--text);background:var(--bg)}
*{box-sizing:border-box}body{margin:0}button,input{font:inherit}button,a,input{-webkit-tap-highlight-color:transparent}button{cursor:pointer}button:disabled{cursor:default;opacity:.4}button:focus-visible,a:focus-visible,input:focus-visible,summary:focus-visible{outline:2px solid var(--green);outline-offset:5px}a{color:inherit}button{color:inherit}button:hover:not(:disabled){filter:brightness(1.14)}.topbar{height:84px;margin:0 auto;max-width:1440px;padding:0 5%;display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid var(--line)}.brand{text-decoration:none;display:flex;align-items:center;gap:12px;font-size:14px;letter-spacing:2.5px;font-weight:650}.brand-mark{font-size:35px;color:var(--green);line-height:1}.brand-think{font-weight:400;color:var(--muted)}.edition{font-size:12px;letter-spacing:1px;color:var(--muted)}.edition span{margin-left:18px;color:var(--text)}main{max-width:1440px;margin:auto;padding:0 5%}.intro{display:flex;justify-content:space-between;align-items:flex-end;padding:47px 0 35px}.eyebrow{font-size:12px;color:var(--green);letter-spacing:3px;margin:0 0 14px}h1{font-size:40px;font-weight:500;letter-spacing:2px;margin:0 0 14px}h1 span{color:var(--green)}.intro-copy{font-size:16px;color:var(--muted);margin:0;line-height:1.6}.index-stamp{font-size:12px;color:var(--muted);display:flex;align-items:center;gap:14px}.index-stamp>span{font-family:var(--serif);font-size:48px;font-style:italic;color:#72808d}.experiments{display:grid;grid-template-columns:repeat(3,1fr);border:1px solid var(--line);border-radius:12px;overflow:hidden;margin-bottom:26px}.experiment{display:flex;text-align:left;align-items:center;padding:22px 23px;gap:18px;background:transparent;border:0;border-right:1px solid var(--line);position:relative}.experiment:last-child{border-right:0}.experiment.active{background:#1a241c}.experiment.active:after{content:'';position:absolute;bottom:0;left:0;right:0;height:2px;background:var(--green)}.num{font-family:var(--serif);font-size:24px;color:#6f7d89;font-style:italic}.experiment.active .num{color:var(--green)}.experiment strong{display:block;font-size:16px;font-weight:500;line-height:1.7}.experiment small{display:block;font-size:12px;color:var(--muted);margin-top:3px}.category{font-size:12px;margin-left:auto;color:var(--muted);border:1px solid var(--line);padding:5px 8px;border-radius:4px}.lab-grid{display:grid;grid-template-columns:minmax(0,1.55fr) minmax(320px,1fr);border:1px solid var(--line);border-radius:14px;overflow:hidden;background:var(--panel)}.playground{padding:28px 32px;position:relative;background:radial-gradient(ellipse at 48% 42%,#17291e70,transparent 63%),linear-gradient(#ffffff03 1px,transparent 1px),linear-gradient(90deg,#ffffff03 1px,transparent 1px);background-size:auto,32px 32px,32px 32px;display:flex;flex-direction:column}.surface-head{display:flex;justify-content:space-between;align-items:center;font-size:12px;color:var(--muted);gap:12px;letter-spacing:1px}.surface-head b{font-weight:400;color:var(--green)}.scene{min-height:330px;display:flex;align-items:center;justify-content:center;position:relative;flex:1}.orb{position:relative;width:min(100%,340px);aspect-ratio:1;display:flex;align-items:center;justify-content:center}.orb svg{width:100%;height:100%;position:absolute;inset:0;overflow:visible}.orb-core{text-align:center;z-index:1;pointer-events:none}.orb-core strong{font-family:var(--serif);font-size:65px;line-height:1.2;font-weight:400}.orb-core strong small{font-family:inherit;font-size:26px;color:var(--green)}.orb-core p{font-size:12px;letter-spacing:2px;color:var(--muted);margin:7px 0}.orb-core .core-label{color:var(--green);font-size:12px;letter-spacing:2px;margin-bottom:10px}.segment{transition:stroke .35s ease,opacity .35s ease}.orbit-note{position:absolute;font-size:12px;color:var(--muted);left:0;bottom:22px}.orbit-note strong{display:block;color:var(--text);font-size:14px;font-weight:400;margin-bottom:8px}.legend{display:flex;gap:20px;justify-content:center;font-size:12px;color:var(--muted);margin:0 0 27px}.legend i{display:inline-block;width:7px;height:7px;border-radius:50%;background:var(--green);margin-right:7px}.legend .blue{background:var(--blue)}.control{border-top:1px solid var(--line);padding-top:23px}.control-heading{display:flex;justify-content:space-between;font-size:14px;gap:8px;margin-bottom:18px}.control-heading 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15px;letter-spacing:.5px}.story{font-size:16px;line-height:1.85;color:#acb7bf;margin:0 0 22px}.prompt{font-size:14px;line-height:1.6;margin:0 0 12px;color:#d7e0e4}.choices{display:grid;gap:9px}.choice{text-align:left;border:1px solid var(--line);border-radius:7px;background:#131b23;padding:14px;display:flex;gap:12px;font-size:14px;align-items:center;line-height:1.55}.choice .letter{color:var(--muted);font-size:12px;border:1px solid #34404c;border-radius:4px;min-width:24px;height:24px;display:flex;align-items:center;justify-content:center}.choice.selected{border-color:var(--green);background:#b5f47b0b}.choice.selected .letter{color:var(--green);border-color:#b5f47b60}.response{border-left:2px solid var(--green);padding:3px 0 3px 15px;margin-top:22px;font-size:14px;line-height:1.8;color:#b7c3cc;animation:reveal .3s ease}.response strong{color:var(--green);font-weight:500;display:block;margin-bottom:7px}.response p{margin:0}.next-step{margin-top:16px;width:100%;text-align:center}.footnote{font-size:12px;color:#87949f;line-height:1.7;margin-top:auto;padding-top:24px}.under-lab{display:grid;grid-template-columns:1.55fr 1fr;gap:34px;padding:26px 2px 0}.reflection{font-size:14px;line-height:1.8;color:var(--muted)}.reflection span{display:block;font-size:12px;color:var(--green);letter-spacing:2px;margin-bottom:7px}.reflection p{margin:0}details{font-size:12px;color:var(--muted);line-height:1.8}summary{cursor:pointer;font-size:14px;color:#bdc6cd;padding:0 0 10px}details p{margin:0 0 7px}details a{color:var(--green);text-underline-offset:4px}footer{border-top:1px solid var(--line);margin:34px 0 0;padding:22px 0 30px;display:flex;justify-content:space-between;color:#85929d;font-size:12px;gap:20px}.footer-divider{margin:0 13px;color:var(--line)}.social-chart{width:100%;display:flex;flex-direction:column;gap:22px;padding:35px 5px}.bar-row{display:grid;grid-template-columns:63px 1fr 35px;gap:13px;align-items:center;font-size:14px}.bar-track{height:26px;background:#ffffff06;border-radius:3px;overflow:hidden}.bar-fill{height:100%;background:var(--green);transition:width .4s ease;border-radius:3px}.bar-row:nth-child(2) .bar-fill{opacity:.7}.bar-row:nth-child(3) .bar-fill{opacity:.4}.bar-row .value{text-align:right;color:var(--green);font-variant-numeric:tabular-nums}.chart-caption{font-size:12px;color:var(--muted);text-align:center;line-height:1.7;margin:4px 0}.allocation{display:flex;gap:8px}.allocation button{flex:1;padding:12px 6px}.allocation .selected{border-color:var(--green);color:var(--green);background:#b5f47b10}.identity-result{margin-top:16px;background:#b5f47b0b;border:1px solid #b5f47b40;padding:17px;border-radius:7px;font-size:14px;line-height:1.8}.identity-result strong{color:var(--green)}.machine-metrics{width:100%;display:grid;grid-template-columns:1fr 1fr;gap:22px;padding:30px 0}.metric-column{text-align:center;padding:25px 10px;border:1px solid var(--line);border-radius:8px}.metric-column:last-child{border-color:#b5f47b60;background:#b5f47b08}.metric-column h3{font-size:14px;font-weight:400;margin:0 0 24px}.meter{height:130px;width:24px;background:#ffffff08;display:flex;align-items:flex-end;margin:0 auto 20px;border-radius:20px;overflow:hidden}.meter-fill{width:100%;background:var(--blue);transition:height .4s}.metric-column:last-child .meter-fill{background:var(--green)}.metric-column strong{font-family:var(--serif);font-size:37px;font-weight:400}.metric-column p{font-size:12px;line-height:1.8;color:var(--muted);margin:10px 0 0}.machine-control{display:flex;align-items:center;justify-content:space-between;gap:16px;font-size:14px;line-height:1.7}.switch{position:relative;display:inline-flex;flex:none}.switch input{width:45px;height:26px;appearance:none;border-radius:20px;background:#39434c;cursor:pointer;margin:0;transition:background .2s}.switch input:checked{background:var(--green)}.switch input:before{content:'';display:block;width:20px;height:20px;border-radius:50%;background:#0b1118;margin:3px;transition:transform .2s}.switch input:checked:before{transform:translateX(19px)}.reset-link{background:transparent;border:0;padding:8px 0;color:var(--muted);font-size:12px;text-decoration:underline;text-underline-offset:4px}.session-note{font-size:12px;color:var(--muted);margin-top:14px;line-height:1.7}.experiment:active,.choice:active,.btn:active{transform:translateY(1px)}@keyframes reveal{from{opacity:0;transform:translateY(6px)}to{opacity:1;transform:translateY(0)}}
@media(min-width:1500px){.intro{padding-top:60px}.scene{min-height:360px}.lab-grid{min-height:600px}}
@media(max-width:1000px){.category{display:none}.experiment{padding:18px 16px;gap:12px}.lab-grid{grid-template-columns:1.15fr 1fr}.playground{padding:25px 22px}.question-panel{padding:27px 23px}h2{font-size:24px}.orbit-note{bottom:8px}}
@media(max-width:720px){.topbar{height:67px;padding:0 20px}.brand{font-size:12px;gap:8px;letter-spacing:1.7px}.brand-mark{font-size:29px}.edition{font-size:12px}.edition span{display:none}main{padding:0 18px}.intro{padding:30px 0 25px}h1{font-size:31px;margin-bottom:9px}.eyebrow{font-size:12px;letter-spacing:2px;margin-bottom:12px}.intro-copy{font-size:14px}.index-stamp{display:none}.experiments{gap:0;margin-bottom:18px;border-radius:8px}.experiment{padding:14px 9px;gap:6px;flex-direction:column;align-items:flex-start}.num{font-size:16px}.experiment strong{font-size:14px}.experiment small{display:none}.lab-grid{grid-template-columns:1fr}.playground{padding:20px}.surface-head{font-size:12px;letter-spacing:.5px}.scene{min-height:280px}.orb{width:270px}.orb-core strong{font-size:55px}.orbit-note{bottom:10px;font-size:12px}.orbit-note strong{font-size:12px}.legend{margin-bottom:20px;gap:16px}.question-panel{border-left:0;border-top:1px solid var(--line);padding:25px 22px}.question-panel h2{font-size:25px;margin-top:15px}.story{font-size:16px}.under-lab{grid-template-columns:1fr;gap:22px;padding-top:23px}.footnote{padding-top:20px}footer{flex-direction:column;gap:12px;line-height:1.8;margin-top:25px}.social-chart{padding:24px 0}.scene:has(.social-chart){min-height:230px}.machine-metrics{gap:14px}.allocation{flex-wrap:wrap}.allocation button{min-width:75px}.buttons{flex-wrap:wrap}.btn.primary{min-width:150px}}
@media(prefers-reduced-motion:reduce){*,*:before{animation:none!important;transition:none!important}}
.ship-scene,.veil-scene,.machine-scene{min-height:0;padding:23px 0;align-items:stretch}.ship-stage,.veil-stage,.machine-stage{width:100%;min-width:0}.vessel{padding:17px 14px 9px;background:#0a1119b3;border:1px solid #344958;border-radius:8px}.vessel-title{display:flex;justify-content:space-between;align-items:center;gap:10px;font-size:12px;color:var(--muted)}.vessel-title strong{font-size:16px;letter-spacing:1px;color:var(--text);font-weight:500}.hull-diagram{width:100%;display:block;margin:7px 0 0}.vessel-data{display:flex;justify-content:center;gap:30px;margin:0 0 12px;font-size:12px;color:var(--muted)}.vessel-data b{font-size:16px;font-weight:500;color:var(--green);margin-left:7px}.vessel-data span:last-child b{color:var(--blue)}.history-line{border-top:1px solid #334653;padding:12px 0 5px;display:flex;justify-content:space-between;gap:8px;font-size:12px;color:var(--muted)}.history-line span:last-child{color:var(--blue)}.old-parts{margin-top:18px;padding:14px;background:#121c17;border:1px dashed #b5f47b40;border-radius:6px}.parts-heading{display:flex;justify-content:space-between;gap:10px;color:var(--muted);font-size:12px;margin-bottom:12px;line-height:1.6}.parts-heading b{color:var(--green);font-weight:400;white-space:nowrap}.parts-grid{display:grid;grid-template-columns:repeat(10,1fr);gap:4px}.part{height:23px;display:flex;align-items:center;justify-content:center;font-size:12px;border:1px solid #b5f47b12;color:#63736a}.part.stored{background:#b5f47b21;border-color:#b5f47b65;color:var(--green);animation:reveal .2s ease}.diagram-note{font-size:12px;color:var(--muted);margin:13px 0 0;text-align:center;line-height:1.7}.rebuild-caption{font-size:12px;line-height:1.8;color:var(--green);text-align:center;padding:16px 0}.rebuilt{border-color:#b5f47b60;animation:reveal .45s ease}.rebuilt .vessel-title strong{color:var(--green)}.two-ships .hull-diagram{max-height:150px}.identity-envelope{border:1px dashed #81928b;background:repeating-linear-gradient(135deg,#ffffff02 0 7px,transparent 7px 14px),#18231e;padding:23px;text-align:center;border-radius:8px}.identity-envelope.opened{background:#b5f47b0d;border:1px solid var(--green);animation:unveil .65s ease}.envelope-label{font-size:12px;letter-spacing:2px;color:var(--muted)}.identity-envelope strong{display:block;font-size:37px;letter-spacing:7px;font-weight:500;margin:18px 0;color:var(--green)}.identity-envelope p{margin:0;font-size:14px;line-height:1.7;color:#c0cec6}.resource-groups{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:10px;margin:22px 0}.resource-group{padding:15px 11px;border:1px solid var(--line);border-radius:7px;background:#101923}.resource-group.your-group{border-color:var(--green);background:#b5f47b0b}.group-label{font-size:14px;color:var(--muted);min-height:44px;line-height:1.6}.group-label b{display:block;color:var(--green);font-size:12px;font-weight:400}.resource-group>strong{font-family:var(--serif);font-weight:400;font-size:34px;display:block;margin:9px 0 15px}.resource-group>strong small{font-family:inherit;font-size:12px;color:var(--muted)}.resource-tokens{display:grid;grid-template-columns:repeat(4,1fr);gap:4px;min-height:65px;align-content:start}.resource-tokens i{height:10px;background:var(--green);opacity:.7;border-radius:1px}.your-group .resource-tokens i{opacity:1}.lens-picker{display:flex;gap:8px;margin-bottom:17px}.lens-picker .btn{flex:1;padding:10px 8px;background:transparent}.lens-picker .selected{background:#b5f47b15;border-color:var(--green);color:var(--green)}.experience-frame{padding:25px 20px;background:radial-gradient(ellipse at top right,#293936,#0b151e 70%);border:1px solid #435b55;border-radius:10px;transition:background .3s}.experience-frame.reality-view{background:#0c1119;border-color:#5572a4}.experience-label{font-size:12px;letter-spacing:2px;color:var(--green)}.reality-view .experience-label{color:var(--blue)}.experience-frame h3{font-family:var(--serif);font-size:26px;font-weight:400;line-height:1.5;margin:22px 0 15px}.experience-frame>p{font-size:16px;line-height:1.9;color:#bdcacd;margin:0 0 25px}.world-comparison{display:grid;grid-template-columns:1fr 1fr;gap:12px}.world{border-top:2px solid #6f9fff70;padding:16px 0 0}.world.simulated{border-color:#b5f47b80}.world>span{font-size:12px;line-height:1.7;color:var(--blue)}.world.simulated>span{color:var(--green)}.world>strong{display:block;font-size:14px;font-weight:500;margin:13px 0 9px;line-height:1.7}.world>p{font-size:14px;line-height:1.8;color:var(--muted);margin:0}.chosen-world{background:#ffffff05;outline:1px solid #ffffff15;outline-offset:6px}.machine-status{color:var(--muted);font-size:12px;line-height:1.8;text-align:center;margin:16px 0 0}@keyframes unveil{from{opacity:.25;transform:rotateX(35deg)}to{opacity:1;transform:rotateX(0)}}
@media(max-width:720px){.ship-scene,.veil-scene,.machine-scene{padding:20px 0}.vessel{padding:13px 9px 9px}.vessel-title{font-size:12px}.parts-grid{gap:3px}.part{font-size:12px;height:22px}.resource-groups{gap:7px}.resource-group{padding:13px 9px}.resource-group>strong{font-size:29px}.resource-tokens{grid-template-columns:repeat(3,1fr)}.experience-frame{padding:22px 16px}.experience-frame h3{font-size:24px}.world-comparison{gap:13px}.world>strong{font-size:14px}.world>p{font-size:14px}.lens-picker .btn{font-size:14px}.identity-envelope{padding:20px 15px}}