@font-face{font-family:'DM Sans';font-style:normal;font-weight:100 1000;font-display:swap;src:url('../assets/fonts/dm-sans-latin-variable.woff2') format('woff2')}
@font-face{font-family:'Instrument Serif';font-style:normal;font-weight:400;font-display:swap;src:url('../assets/fonts/instrument-serif-latin-regular.woff2') format('woff2')}
@font-face{font-family:'Instrument Serif';font-style:italic;font-weight:400;font-display:swap;src:url('../assets/fonts/instrument-serif-latin-italic.woff2') format('woff2')}
@font-face{font-family:'Noto Sans SC';font-style:normal;font-weight:100 900;font-display:swap;src:url('../assets/fonts/noto-sans-sc-film.woff2') format('woff2')}
:root{--paper:#fafbf8;--ink:#14333b;--teal:#287e7b;--line:#dce4df;--muted:#647274;--sans:'DM Sans','Noto Sans SC',sans-serif}
*{box-sizing:border-box}body{margin:0;background:var(--paper);color:var(--ink);font:15px/1.6 var(--sans);-webkit-font-smoothing:antialiased}button,input{font:inherit}a{color:inherit;text-decoration:none}button{color:inherit;cursor:pointer}button:disabled{cursor:wait;opacity:.45}a:focus-visible,button:focus-visible,input:focus-visible,summary:focus-visible,[tabindex]:focus-visible{outline:3px solid #64ada4;outline-offset:5px}button{touch-action:manipulation}[hidden]{display:none!important}.sr-only{position:absolute;width:1px;height:1px;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap}.skip{position:fixed;top:-80px;left:16px;padding:10px;background:white;z-index:20;clip-path:inset(50%)}.skip:focus{top:16px;clip-path:none}
.film-header{height:88px;display:flex;align-items:center;gap:28px;max-width:1600px;margin:auto;padding:0 48px;border-bottom:1px solid var(--line)}.brand{width:140px;flex:none;display:block}.brand img{display:block;width:100%;height:auto}.back{margin-left:auto;font-size:13px;color:var(--muted)}.language{background:none;border:1px solid var(--line);border-radius:4px;padding:6px 12px;font-size:12px}main{max-width:1440px;margin:auto;padding:40px 48px 0}.film-intro{display:flex;align-items:end;justify-content:space-between;gap:24px;margin-bottom:22px}.eyebrow{font-size:10px;letter-spacing:1.6px;margin:0;color:var(--teal);font-weight:600}h1{font-family:'Instrument Serif','Noto Sans SC',serif;font-size:32px;font-weight:400;letter-spacing:-.5px;line-height:1.1;margin:0}html[lang=zh-CN] h1{font-size:24px;letter-spacing:0}
.player{border:1px solid var(--line);border-radius:6px;overflow:hidden;background:var(--paper)}.screen{position:relative;aspect-ratio:16/9;isolation:isolate;cursor:pointer}.screen canvas{width:100%;height:100%;display:block}.loading{position:absolute;inset:0;display:grid;place-items:center;background:var(--paper);font-size:14px}.start{position:absolute;left:50%;bottom:6%;transform:translateX(-50%);display:flex;align-items:center;gap:15px;padding:13px 22px;background:var(--ink);color:white;border:1px solid var(--ink);border-radius:4px;font-size:13px;box-shadow:0 5px 25px #14333b12;white-space:nowrap}.start:hover{background:var(--teal)}.start small{font-size:11px;opacity:.55;border-left:1px solid #ffffff45;padding-left:15px}.play-symbol{font-size:11px}.controls{min-height:62px;display:flex;align-items:center;gap:15px;border-top:1px solid var(--line);padding:9px 20px;background:#fff}.control{border:0;background:transparent;flex:none;display:grid;place-items:center;width:26px;height:30px;font-size:22px;padding:0}.control.play{font-size:13px}.control.replay{font-size:24px;color:var(--muted)}.time{font-variant-numeric:tabular-nums;font-size:11px;white-space:nowrap;color:var(--muted)}.seek-label{flex:1;min-width:40px;display:flex;align-items:center;height:32px}input[type=range]{width:100%;margin:0;accent-color:var(--teal);cursor:pointer;height:4px}.chapter-label{font-size:10px;color:var(--muted);width:135px;text-align:right;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.film-meta{display:flex;justify-content:space-between;gap:20px;margin:17px 0 30px;font-size:11px;color:var(--muted)}.film-meta a{color:var(--teal);white-space:nowrap}.chapters{display:grid;grid-template-columns:repeat(8,minmax(0,1fr));gap:15px;margin:0 0 32px}.chapter{background:none;border:0;border-top:2px solid var(--line);text-align:left;padding:12px 0;line-height:1.45;transition:border-color .2s}.chapter[aria-current=true]{border-top-color:var(--teal)}.chapter:hover{border-top-color:#91b7a9}.chapter span{display:block;color:var(--muted);font-size:10px;letter-spacing:.4px;font-variant-numeric:tabular-nums;margin-bottom:8px}.chapter strong{font-weight:500;font-size:11px}.chapter[aria-current=true] strong{color:var(--teal)}.transcript{border-block:1px solid var(--line);margin-bottom:34px}.transcript summary{display:flex;justify-content:space-between;list-style:none;cursor:pointer;font-size:13px;padding:16px 0}.transcript summary::-webkit-details-marker{display:none}.transcript[open] summary>span:last-child{transform:rotate(45deg)}.transcript ol{list-style:none;padding:10px 0 22px;margin:0;display:grid;grid-template-columns:1fr 1fr;gap:22px 55px}.transcript li{display:grid;grid-template-columns:45px 1fr;gap:15px;font-size:13px}.transcript li button{border:0;background:none;padding:0;align-self:start;font-size:11px;color:var(--teal)}.transcript li h2{font-size:14px;font-weight:550;margin:0 0 6px}.transcript li p{margin:0;color:var(--muted)}.film-footer{display:flex;justify-content:space-between;align-items:center;gap:20px;padding:0 0 34px;font-size:12px}.film-footer p{color:var(--muted);margin:0}.film-footer>div{display:flex;gap:30px}.film-footer a:hover{color:var(--teal)}.player:fullscreen{display:flex;flex-direction:column;justify-content:center;background:var(--paper);border:0;border-radius:0}.player:fullscreen .screen{width:min(100%,calc((100dvh - 62px)*16/9));flex:none;margin:auto auto 0}.player:fullscreen .controls{width:100%;margin:0 auto auto}
html.export body{background:var(--paper)}html.export .film-header,html.export .film-intro,html.export .controls,html.export .film-meta,html.export .chapters,html.export .transcript,html.export .film-footer,html.export .start{display:none!important}html.export main{max-width:none;padding:0}html.export .player{border:0;border-radius:0}html.export .screen{width:100vw;height:100vh;aspect-ratio:auto}
@media(min-width:1600px){main{padding-top:50px}}@media(max-width:900px){.film-header{padding:0 25px;height:75px}main{padding:30px 25px 0}.film-intro{display:block}.eyebrow{margin-bottom:12px}h1{font-size:30px}.chapters{grid-template-columns:repeat(4,1fr);gap:0 18px}.chapter-label{display:none}.transcript ol{gap:20px 25px}.film-meta{font-size:10px}.film-footer>div{gap:20px}}
@media(max-width:540px){.film-header{padding-inline:18px;gap:14px;height:68px}.brand{width:110px}.back{font-size:10px}.language{font-size:10px;padding:4px 7px}main{padding:24px 14px 0}.film-intro{margin-inline:4px}h1{font-size:27px}.eyebrow{font-size:9px}.controls{padding:7px 10px;gap:9px;min-height:52px}.time{font-size:9px}.control{width:20px}.start{padding:8px 13px;gap:10px;font-size:10px;bottom:4%}.start small{display:none}.film-meta{display:block;margin:14px 4px 25px}.film-meta>span{display:block;margin-bottom:8px}.chapters{margin:0 4px 24px;gap:0 12px}.chapter strong{font-size:10px}.chapter span{font-size:9px;margin-bottom:5px}.transcript{margin-inline:4px}.transcript ol{grid-template-columns:1fr;gap:22px}.film-footer{display:block;margin-inline:4px}.film-footer p{margin-bottom:14px}.film-footer>div{justify-content:space-between;gap:10px;font-size:11px}}
@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto!important;transition:none!important}}

.audio-status{font-size:12px;color:var(--teal);margin:12px 0}.export .audio-status{display:none!important}

/* The film carries the concept; the page connects each capability to biology. */
.discovery{padding:45px 0 44px;border-top:1px solid var(--line)}.discovery>h2{font-size:clamp(30px,4.2vw,59px);font-weight:500;letter-spacing:-1.8px;line-height:1.08;margin:18px 0 36px}.discovery>h2 em{font-family:'Instrument Serif',serif;font-weight:400;color:var(--teal);font-size:1.12em}.value-row{display:grid;grid-template-columns:60px 1fr 24px;gap:18px;border-top:1px solid var(--line);padding:25px 0;align-items:start}.value-number{font-size:11px;color:var(--teal);padding-top:6px;font-variant-numeric:tabular-nums}.value-row h3{font-size:clamp(20px,2.2vw,30px);font-weight:500;letter-spacing:-.6px;margin:0 0 9px;line-height:1.2}.value-row p{font-size:14px;color:var(--muted);max-width:740px;margin:0;line-height:1.7}.value-row>span:last-child{font-size:22px;color:var(--teal)}.value-row:hover h3,.resource-duo a:hover h3{color:var(--teal)}.resource-duo{display:grid;grid-template-columns:1fr 1fr;margin-top:30px;border:1px solid var(--line);background:#eff4ef}.resource-duo>a{padding:30px}.resource-duo>a+a{border-left:1px solid var(--line)}.resource-duo h3{font-size:28px;font-weight:500;letter-spacing:-.7px;margin:12px 0}.resource-duo h3 span{float:right;font-size:23px;color:var(--teal)}.resource-duo p{font-size:13px;color:var(--muted);max-width:420px;margin:0}.export .discovery{display:none!important}@media(max-width:540px){.discovery{padding:30px 4px}.discovery>h2{letter-spacing:-1px}.value-row{grid-template-columns:25px 1fr 18px;gap:12px;padding:22px 0}.value-row p{font-size:12px}.resource-duo{grid-template-columns:1fr}.resource-duo>a{padding:23px}.resource-duo>a+a{border-left:0;border-top:1px solid var(--line)}.resource-duo h3{font-size:25px}}

.design-logic{display:grid;grid-template-columns:1fr 1fr;gap:45px;padding:4px 0 33px}.design-logic h3{font-size:24px;font-weight:500;letter-spacing:-.5px;line-height:1.2;margin:12px 0}.design-logic p{font-size:13px;color:var(--muted);line-height:1.7;max-width:500px;margin:0}@media(max-width:540px){.design-logic{grid-template-columns:1fr;gap:25px;padding-bottom:28px}.design-logic h3{font-size:22px}.design-logic p{font-size:12px}}