@font-face{font-family:Barlow;src:url('./Barlow-Medium.ttf') format('truetype');font-weight:500;font-display:swap}
@font-face{font-family:ScreenOrbitron;src:url('./Orbitron-Medium.ttf') format('truetype');font-weight:500;font-display:swap}
:root{color-scheme:light;--page:#f7f8f9;--surface:#e9edf0;--text:#242a30;--muted:#606a74;--line:#d1d7dc;--accent:#285b7d;--image-surface:#e3e8ec;--control:#e9edf0;--header:rgb(247 248 249 / .96);font-family:"Avenir Next","Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;font-weight:400;scroll-behavior:smooth;scroll-padding-top:100px}
:root[data-theme=dark]{color-scheme:dark;--page:#171b20;--surface:#272e36;--text:#edf0f3;--muted:#aeb8c3;--line:#3c4652;--accent:#b3d1e6;--image-surface:#343e48;--control:#272e36;--header:rgb(23 27 32 / .96)}
@media(prefers-color-scheme:dark){:root:not([data-theme=light]){color-scheme:dark;--page:#171b20;--surface:#272e36;--text:#edf0f3;--muted:#aeb8c3;--line:#3c4652;--accent:#b3d1e6;--image-surface:#343e48;--control:#272e36;--header:rgb(23 27 32 / .96)}}
*{box-sizing:border-box}body{margin:0;background:var(--page);color:var(--text)}a{color:inherit;text-decoration:none}button,summary{font:inherit}button,a,summary{-webkit-tap-highlight-color:transparent}button{color:inherit;cursor:pointer;background:transparent;border:0}button:disabled{opacity:.5;cursor:wait}button:active{transform:translateY(1px)}:focus-visible{outline:3px solid var(--accent);outline-offset:4px}button{transition:background .18s,color .18s}img{display:block;max-width:100%;height:auto}h1,h2,h3,p,figure{margin:0}h1,h2,h3{font-family:Barlow,"PingFang SC","Microsoft YaHei",sans-serif;font-weight:500;text-wrap:balance}p{text-wrap:pretty}button,summary,.brand{font-weight:500}button,.button{white-space:nowrap}[hidden]{display:none!important}.layout{width:min(1160px,calc(100% - 96px));margin-inline:auto}.skip-link{position:fixed;top:10px;left:20px;padding:12px;background:var(--page);transform:translateY(-160%);z-index:20}.skip-link:focus{transform:none}
/* Layers: document 0, navigation 10, skip link 20. */
.site-header{position:relative;height:72px;display:flex;align-items:center;justify-content:space-between;gap:28px;border-bottom:1px solid var(--line);background:var(--header)}.brand{display:inline-flex;align-items:center;gap:11px;flex-shrink:0}.brand svg{width:91px;height:22px;fill:currentColor}.brand svg path{fill:currentColor}.brand span{font-size:20px;letter-spacing:-.4px}.site-header nav{display:flex;gap:32px;font-size:15px}.site-header nav a{padding:12px 0;min-height:44px;display:flex;align-items:center}.site-header nav a:hover{text-decoration:underline;text-underline-offset:6px}.language-switch{display:flex;gap:4px;align-items:center}.language-switch button{font-size:13px;min-height:44px;min-width:40px;border-radius:8px;color:var(--muted)}.language-switch button[aria-pressed=true]{background:var(--text);color:var(--page)}
.hero{display:grid;grid-template-columns:minmax(0,.85fr) minmax(0,1.45fr);gap:48px;align-items:center;padding-block:32px 56px;min-height:0}.hero-copy{padding-top:48px;align-self:start}.hero h1{font-size:clamp(48px,5.4vw,68px);line-height:1.08;letter-spacing:-.045em;white-space:nowrap}.hero-description{font-size:18px;line-height:1.65;max-width:340px;color:var(--muted);margin-top:23px;margin-bottom:28px}.button{display:inline-flex;align-items:center;justify-content:center;padding:14px 22px;border-radius:8px;font-size:16px;line-height:1.3;min-height:48px}.primary{background:var(--text);color:var(--page)}.primary:hover{background:var(--accent);color:var(--page)}.secondary{background:var(--page);color:var(--text);border:1px solid var(--line)}.hero-media{min-width:0}.model-stage{height:clamp(440px,calc(100svh - 240px),560px);position:relative;overflow:hidden;border-radius:12px;background:var(--surface);isolation:isolate}.model-stage[data-mode=overview]{background:transparent}.model-stage[data-mode="3d"][data-environment=window]{background:#c9b99f}.model-stage[data-mode="3d"][data-environment=night]{background:#202a39}.model-stage canvas{width:100%;height:100%;display:block;touch-action:none;cursor:grab}.model-stage canvas:active{cursor:grabbing}.model-stage[data-mode=overview] canvas{display:none}#fallback{position:absolute;inset:0;width:100%;height:100%;object-fit:contain;filter:drop-shadow(0 20px 12px rgb(15 25 35 / .08))}#status{position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);width:max-content;max-width:85%;padding:16px 20px;background:var(--page);color:var(--text);font-size:15px;line-height:1.5;text-align:center;border-radius:8px}#retry-model{position:absolute;left:50%;top:68%;transform:translateX(-50%)}.model-stage.loading #fallback{opacity:.35}.model-stage.failed canvas{display:none}.screen-note{font-size:12px;line-height:1.5;text-align:center;color:var(--muted);margin-top:16px}.model-controls{max-width:370px}.control-group+.control-group,#model-options{margin-top:19px}.control-label{display:block;font-size:12px;color:var(--muted);margin-bottom:8px}.view-options,.light-options,.model-actions{display:flex;flex-wrap:wrap;gap:5px}.viewer-control{padding:10px 12px;min-height:44px;border-radius:8px;font-size:14px;background:var(--control)}.viewer-control[aria-pressed=true]{background:var(--text);color:var(--page)}@media(hover:hover){.viewer-control:hover{box-shadow:inset 0 0 0 1px var(--muted)}.language-switch button:not([aria-pressed=true]):hover{background:var(--surface);color:var(--text)}}.model-actions{margin-top:18px}.model-actions .viewer-control{font-size:13px;padding-inline:10px}.text-button{padding:10px 0;min-height:44px;margin-top:8px;font-size:14px;text-decoration:underline;text-underline-offset:5px}.model-help{font-size:12px;line-height:1.6;color:var(--muted);max-width:330px;margin-top:8px}
.section{padding-block:64px;border-top:1px solid var(--line)}.section-heading{margin-bottom:32px;max-width:640px}.section-heading h2,.story h2{font-size:36px;line-height:1.15;letter-spacing:-.025em}.section-heading p{font-size:16px;line-height:1.6;color:var(--muted);margin-top:12px;max-width:560px}.detail-composition{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:28px}.detail-figure img{width:100%;height:auto;aspect-ratio:4/3;object-fit:contain;background:var(--image-surface);border-radius:12px}.detail-figure figcaption{padding-top:22px;max-width:440px}.detail-figure h3{font-size:24px;line-height:1.2;letter-spacing:-.015em}.detail-figure p{margin-top:10px;font-size:16px;line-height:1.6;color:var(--muted)}.dimensions{margin-top:36px;border-top:1px solid var(--line)}.dimensions summary{cursor:pointer;font-size:15px;min-height:56px;display:flex;justify-content:space-between;align-items:center;list-style:none;gap:16px}.dimensions summary::-webkit-details-marker{display:none}.dimensions summary::after{content:'+';font-size:25px;color:var(--muted)}.dimensions[open] summary::after{content:'−'}.dimensions-content{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:28px;padding-block:18px}.dimensions-content span,.dimensions-content small{font-size:13px;color:var(--muted)}.dimensions-content p{font-size:21px;margin:12px 0 8px}.dimensions-content small{display:block;line-height:1.5}
.story{padding-block:56px 64px}.story h2{max-width:640px;margin-bottom:24px}.story-body{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:56px;align-items:start}.story-body p{font-size:17px;line-height:1.65;color:var(--muted);max-width:510px}.founder-names{display:flex;gap:28px;flex-wrap:wrap;margin-top:0;font-family:Barlow,"PingFang SC",sans-serif;font-size:28px;line-height:1.3;letter-spacing:-.02em}.site-footer{padding-block:24px 32px;display:flex;align-items:center;justify-content:space-between;gap:24px;border-top:1px solid var(--line)}.site-footer p{font-size:13px;color:var(--muted)}.site-footer button{font-size:13px;min-height:44px;text-decoration:underline;text-underline-offset:4px}.site-footer .brand svg{width:74px}.site-footer .brand span{font-size:17px}
#menu-toggle{display:none}.model-stage:has(canvas:focus-visible){outline:3px solid var(--accent);outline-offset:4px}.toggle-control{display:inline-flex;align-items:center;gap:9px}.switch-indicator{display:inline-block;position:relative;width:28px;height:16px;flex:none;border-radius:20px;background:var(--muted)}.switch-indicator::after{content:'';position:absolute;width:12px;height:12px;top:2px;left:2px;border-radius:50%;background:var(--page);transition:transform .18s ease}.toggle-control[aria-checked=true] .switch-indicator{background:var(--text)}.toggle-control[aria-checked=true] .switch-indicator::after{transform:translateX(12px)}.dimensions summary:hover{color:var(--accent)}.dimensions-content p{font-variant-numeric:tabular-nums}.detail-figure p{max-width:46ch}
@media(min-width:1440px){.hero{gap:64px}.model-stage{height:clamp(440px,calc(100svh - 240px),580px)}}
@media(max-width:1023px){.layout{width:calc(100% - 64px)}.hero{gap:24px;grid-template-columns:minmax(0,1fr) minmax(0,1.3fr);min-height:0}.hero h1{font-size:49px}.hero-description{font-size:17px}.model-stage{height:480px}.viewer-control{font-size:13px;padding-inline:10px}.section-heading h2,.story h2{font-size:32px}.section-heading p{max-width:560px}.detail-composition,.story{gap:24px}.founder-names{gap:18px;font-size:21px}}
@media(max-width:767px){:root{scroll-padding-top:24px}.layout{width:calc(100% - 40px)}.site-header{height:68px;gap:8px}.site-header nav{display:none;position:absolute;top:calc(100% + 6px);left:0;right:0;z-index:10;padding:12px;background:var(--page);border:1px solid var(--line);border-radius:12px;box-shadow:0 14px 30px rgb(20 30 40 / .08)}.site-header nav[data-open=true]{display:flex;flex-direction:column;gap:0}.site-header nav a{padding:12px;border-radius:8px}.site-header nav a:hover{background:var(--surface)}.site-header .brand{gap:8px}.language-switch{margin-left:auto;order:2}#menu-toggle{display:block;order:3;min-width:44px;min-height:44px;font-size:13px;border-radius:8px;padding-inline:5px}#menu-toggle[aria-expanded=true]{background:var(--surface)}.brand svg{width:82px}.brand span{font-size:19px}.hero{grid-template-columns:minmax(0,1fr);gap:0;min-height:0;padding-block:36px 36px}.hero-copy{display:contents}.hero h1{font-size:48px;order:0}.hero-description{font-size:17px;max-width:380px;margin:18px 0 22px;order:1}.hero #model-gate{order:2}.hero-media{order:3;margin-top:24px}.model-stage{height:auto;aspect-ratio:1/1}.screen-note{font-size:11px;margin-top:10px}.hero .model-controls{order:4;max-width:none;margin-top:24px}.hero .model-help{order:5;margin-top:10px;max-width:none}.hero:has(#model-controls:not([hidden])) .hero-media{margin-top:4px}.model-actions .viewer-control{font-size:13px}.viewer-control{font-size:14px;min-height:44px;padding-inline:13px}.text-button{margin-top:12px}.section{padding-block:38px}.section-heading{display:block;margin-bottom:24px}.section-heading h2,.story h2{font-size:30px}.section-heading p{font-size:16px;margin-top:12px;max-width:340px}.detail-composition{grid-template-columns:minmax(0,1fr);gap:32px}.detail-figure img{border-radius:12px}.detail-figure figcaption{padding-top:18px;max-width:460px}.detail-figure h3{font-size:23px}.detail-figure p{font-size:16px;margin-top:8px}.dimensions{margin-top:28px}.dimensions-content{grid-template-columns:minmax(0,1fr);gap:24px;padding-top:8px}.dimensions-content p{margin:7px 0}.story{padding-block:38px 40px}.story-body{grid-template-columns:minmax(0,1fr);gap:0}.story h2{max-width:none;margin-bottom:20px}.story-body p{font-size:16px}.founder-names{margin-top:22px;gap:22px;font-size:21px}.site-footer{padding-block:22px;display:grid;grid-template-columns:1fr auto;gap:14px}.site-footer p{grid-row:2;grid-column:1/-1;font-size:12px}.site-footer button{font-size:12px}}
@media(max-width:359px){.hero h1{font-size:42px}.layout{width:calc(100% - 32px)}.founder-names{gap:17px;font-size:20px}}
@media(prefers-reduced-motion:reduce){:root{scroll-behavior:auto}*,*::before,*::after{animation:none!important;transition:none!important}}