@import url('../_shared/brand.css');
:root{color-scheme:dark;--bg:#151a19;--paper:#202724;--ink:#f3eddf;--muted:#b4b6ab;--line:#42473f;--gold:#ecc28a;--cyan:#8be1d0;--button:#f1cf99;--shadow:#080c0b;--serif:Georgia,'Noto Serif SC','Songti SC',SimSun,serif}html[data-theme=light]{color-scheme:light;--bg:#f4f0e6;--paper:#fffaf0;--ink:#27352e;--muted:#60665b;--line:#d4d2c6;--gold:#795128;--cyan:#136e64;--button:#e2b572;--shadow:#ded8c9}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--bg);color:var(--ink);font-family:'Microsoft YaHei',system-ui,sans-serif;line-height:1.75}a{color:var(--cyan)}button,a,input{touch-action:manipulation}button{font:inherit;cursor:pointer}button:disabled{cursor:default;opacity:.55}button,a,input,summary{outline-offset:5px}button:focus-visible,a:focus-visible,input:focus-visible,summary:focus-visible{outline:2px solid var(--cyan)}button{border:0;color:inherit}header{height:76px;position:sticky;top:0;z-index:20;background:var(--bg);display:flex;align-items:center;justify-content:space-between;padding:0 max(20px,calc((100vw - 1320px)/2));border-bottom:1px solid var(--line)}.brand{display:flex;align-items:center;gap:10px;color:var(--ink);text-decoration:none;font-size:19px;line-height:1.1;font-weight:750;letter-spacing:2px}.brand small{display:block;font-size:10px;letter-spacing:3px;margin-top:5px}.time{text-align:center;line-height:1.5}.time small,.eyebrow{font:11px/1.8 Consolas,monospace;letter-spacing:3px;color:var(--gold)}.time b{display:block;font-size:13px;letter-spacing:1px;font-weight:500}.icon{background:transparent;font-size:26px;width:42px;height:44px;border-radius:50%}.progress{height:3px;background:var(--line);position:sticky;top:76px;z-index:21}.progress div{height:100%;width:0;background:var(--cyan);transition:width .7s}.skip{position:absolute;left:10px;top:-100px;z-index:99}.skip:focus{top:10px}main{min-height:calc(100svh - 215px);max-width:1320px;margin:auto;outline:none}.scene{padding:44px 36px 60px;animation:arrive .5s ease-out}.split{display:grid;grid-template-columns:1.02fr 1fr;gap:64px;align-items:center;min-height:650px}.visual{position:relative;isolation:isolate}.visual img{display:block;width:100%;aspect-ratio:1;object-fit:cover;border-radius:3px}.visual:after{content:'';position:absolute;inset:0;pointer-events:none;box-shadow:inset 0 0 80px #151a1944}.frame-label{position:absolute;left:20px;bottom:15px;color:#fff5df;font-size:11px;letter-spacing:3px;text-shadow:0 2px 5px #000}.copy{max-width:570px}.eyebrow{margin:0 0 16px;text-transform:uppercase}.copy h1,h1{font:clamp(34px,4.2vw,60px)/1.35 var(--serif);letter-spacing:-1px;font-weight:500;margin:0 0 24px}.copy h2{font:clamp(28px,3.5vw,46px)/1.4 var(--serif);margin:0 0 20px}.lead{font-size:18px;line-height:1.9;margin:0 0 24px;color:var(--muted)}.intro-title em{color:var(--cyan);font-style:normal}.caption{font-size:11px;color:var(--muted);margin:6px 0 0}.primary{background:var(--button);color:#283127;border-radius:3px;padding:12px 24px;display:inline-block;text-decoration:none;font-weight:700;text-align:center}.quiet{background:transparent;border:1px solid var(--line);border-radius:3px;padding:9px 16px;color:var(--ink)}.choices{display:grid;gap:10px;margin:22px 0}.choice{background:var(--paper);border:1px solid var(--line);padding:14px 18px;border-radius:3px;text-align:left;line-height:1.6}.choice:hover,.quiet:hover{border-color:var(--cyan)}.choice.chosen{border-color:var(--gold);box-shadow:inset 4px 0 var(--gold)}.choice.correct{border-color:var(--cyan);box-shadow:inset 4px 0 var(--cyan)}.feedback{border-left:2px solid var(--cyan);padding:12px 20px;background:var(--paper);margin:20px 0;font-size:15px}.bottom{display:flex;align-items:center;justify-content:space-between;gap:12px;max-width:1248px;margin:0 auto;padding:18px 0;border-top:1px solid var(--line)}#status{font:12px Consolas,monospace;color:var(--muted)}footer{max-width:1000px;margin:0 auto;padding:24px 28px 35px;color:var(--muted);font-size:11px;text-align:center}details{margin:20px 0;border-top:1px solid var(--line);padding:15px 0 0}summary{cursor:pointer;font-size:14px;color:var(--gold)}.mechanism{margin-top:22px;color:var(--ink)}.mechanism p{line-height:2;font-size:15px}.mechanism img{width:100%;display:block;margin:25px 0;border-radius:4px;background:#18241f}.source{font-size:12px;border-bottom:1px solid var(--line);padding:12px 0;overflow-wrap:anywhere}.source a{display:block}.source small{display:block;color:var(--muted)}.section-head{max-width:750px;margin-bottom:32px}.section-head h1{font-size:42px}.regions{display:grid;grid-template-columns:repeat(5,1fr);gap:15px}.region{border:1px solid var(--line);background:var(--paper);padding:0;text-align:left;position:relative;border-radius:4px;overflow:hidden}.region img{width:100%;aspect-ratio:1.4;object-fit:cover;display:block}.region strong{display:block;padding:12px 14px;font-size:14px;font-weight:500}.region[aria-pressed=true]{outline:2px solid var(--cyan);outline-offset:2px}.tick{position:absolute;top:8px;right:8px;background:#122820ba;color:white;width:25px;height:25px;border-radius:50%;text-align:center}.weights{display:grid;grid-template-columns:repeat(2,1fr);gap:16px;margin:28px 0}.weight-row{background:var(--paper);padding:15px}.weight-row label{display:flex;justify-content:space-between;font-size:14px}.weight-row input{width:100%;accent-color:var(--cyan);margin-top:12px}.muted{color:var(--muted);font-size:13px}.range-row{margin:20px 0}.range-row label{display:flex;justify-content:space-between;font-size:14px}.range-row input{width:100%;accent-color:var(--cyan)}.numbers{display:grid;grid-template-columns:1fr 1fr;gap:18px;border-bottom:1px solid var(--line);padding:18px 0}.numbers b{font:32px/1.5 var(--serif);color:var(--gold);display:block}.numbers small{font-size:12px;color:var(--muted)}.jar{display:grid;grid-template-columns:repeat(10,1fr);gap:8px;padding:26px;border:1px solid #a0b5a65a;border-top:8px double #b9d7c477;border-radius:18px 18px 50px 50px;background:linear-gradient(130deg,#809e8a22,transparent);max-width:450px;margin:30px auto;box-shadow:inset 5px 0 25px #ffffff06}.bead{width:100%;aspect-ratio:1;border:1px solid #9ea69b55;border-radius:50%;box-shadow:inset 2px 2px 5px #ffffff22;animation:drop .7s both;animation-delay:var(--delay);position:relative}.jar-caption{color:var(--muted);font-size:12px;max-width:450px;margin:auto}.legend{display:flex;gap:20px;justify-content:center;font-size:12px}.legend i{display:inline-block;width:9px;height:9px;background:var(--gold);border-radius:50%;margin-right:5px}.legend .cyan{background:var(--cyan)}.reference-table{margin:20px 0;overflow:auto}.reference-table table{border-collapse:collapse;width:100%;font-size:12px;text-align:left;min-width:310px}.reference-table th,.reference-table td{padding:10px 7px;border-bottom:1px solid var(--line);vertical-align:top}.reference-table small{display:block;color:var(--muted)}.flip{min-height:65px;width:100%;background:var(--paper);border:1px solid var(--gold);color:var(--gold);text-align:left;padding:15px 20px;font:18px var(--serif)}.flip[aria-expanded=true]{color:var(--cyan);border-color:var(--cyan)}.rail{display:flex;overflow-x:auto;gap:8px;padding:0 0 18px;margin-bottom:20px;scroll-snap-type:x proximity}.rail button{flex:0 0 100px;scroll-snap-align:start;background:var(--paper);border:1px solid var(--line);padding:10px;font-size:11px}.rail button[aria-current=true]{border-color:var(--cyan);color:var(--cyan)}.rail small{display:block;color:var(--muted);font-size:10px}.cards{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}.collect-card{padding:0;border:1px solid var(--line);background:var(--paper);color:var(--ink);border-radius:4px;overflow:hidden;text-align:left}.collect-card img{width:100%;aspect-ratio:1.2;object-fit:cover;display:block}.collect-card span{font-size:12px;display:block;padding:10px}.collect-card.locked img{filter:grayscale(1);opacity:.4}.badge{display:flex;gap:20px;align-items:center;padding:20px;background:var(--paper);margin:25px 0}.badge img{width:95px;height:95px;border-radius:50%}.badge strong{font:24px var(--serif)}.map{width:100%;aspect-ratio:1.8;background:#18241f;border:1px solid #59706444;border-radius:4px;overflow:hidden}.map svg{width:100%;height:100%}.map text{font-family:'Microsoft YaHei',sans-serif;font-size:13px;fill:#e8e8d8}.route{stroke-dasharray:9 8;animation:flow 8s linear infinite}.small-action{font-size:12px}.exercise{padding:20px;background:var(--paper);margin:20px 0}.exercise canvas{display:block;width:100%;height:auto}.exercise label{display:block}.exercise input[type=range]{width:100%;accent-color:var(--cyan)}.tree{display:flex;gap:8px;flex-wrap:wrap;margin:20px 0}.tree span{padding:8px 12px;background:var(--paper);border:1px solid var(--line);font-family:Consolas,monospace}.haplo-input{width:100%;padding:13px;background:var(--paper);color:var(--ink);border:1px solid var(--line);font:18px Consolas,monospace;margin:5px 0 15px}.guide-row{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:20px}.guide-row button{font-size:12px;padding:6px 11px}.dna-overlay{position:absolute;inset:10% 12%;pointer-events:none;opacity:.6}.dna-overlay circle{animation:helix 9s ease-in-out infinite;transform-box:fill-box;transform-origin:center}.ending-hero{max-width:700px}.ending-hero img{aspect-ratio:1.7}.preferences{display:flex;gap:10px;flex-wrap:wrap;margin:25px 0}dialog{color:var(--ink);background:var(--bg);border:1px solid var(--line);border-radius:7px;max-width:750px;width:calc(100% - 30px);max-height:90svh;padding:25px;overflow:auto}dialog::backdrop{background:#000b;backdrop-filter:blur(7px)}.dialog-head{display:flex;align-items:center;justify-content:space-between}.dialog-head h2{font:25px var(--serif)}#chapters{display:grid;grid-template-columns:1fr 1fr;gap:10px}#chapters button{text-align:left}#poster-canvas{width:100%;height:auto;display:block;margin-bottom:20px}#toast{position:fixed;bottom:25px;left:50%;transform:translate(-50%,20px);background:var(--button);color:#233027;padding:12px 22px;border-radius:3px;z-index:100;opacity:0;pointer-events:none;transition:.3s;font-size:14px;max-width:90vw}#toast.visible{opacity:1;transform:translate(-50%,0)}.statline{font:14px/1.8 Consolas,monospace;color:var(--gold);margin:25px 0}.full-reading{max-width:780px;margin:50px auto 0}.full-reading h2{font:28px var(--serif)}.stamps{display:flex;gap:18px;flex-wrap:wrap;color:var(--gold);font-size:12px;margin-top:20px}
@keyframes arrive{from{opacity:.2;transform:translateY(10px)}to{opacity:1;transform:none}}@keyframes flow{to{stroke-dashoffset:-170}}@keyframes drop{from{opacity:0;transform:translateY(-35px)}to{opacity:1;transform:none}}@keyframes helix{50%{transform:translateX(22px);opacity:.2}}
@media(max-width:800px){header{padding:0 18px;height:66px}.progress{top:66px}.brand{font-size:16px}.time small{font-size:8px;letter-spacing:1.5px}.time b{font-size:11px}.scene{padding:23px 20px 28px}.split{display:flex;flex-direction:column;gap:25px;align-items:stretch;min-height:0}.split .visual{order:0}.split .copy{order:1}.visual img{aspect-ratio:1.34;max-height:450px}.copy{max-width:100%}.copy h1{font-size:35px;margin-bottom:15px}.copy h2,.section-head h1{font-size:30px}.lead{font-size:15px;line-height:1.9;margin-bottom:17px}.eyebrow{font-size:10px;margin-bottom:10px;letter-spacing:2px}.bottom{margin:0 20px;gap:6px;flex-wrap:wrap}.bottom button{padding:10px 14px;font-size:13px}#status{font-size:10px}footer{font-size:10px}.regions{grid-template-columns:repeat(2,1fr);gap:12px}.region strong{padding:9px 12px;font-size:13px}.weights{grid-template-columns:1fr;gap:8px}.section-head{margin-bottom:20px}.numbers b{font-size:28px}.jar{margin:15px auto;padding:20px;gap:7px;max-width:340px}.mechanism p{font-size:14px}.cards{grid-template-columns:repeat(2,1fr)}.badge strong{font-size:21px}.frame-label{font-size:9px;left:12px;bottom:10px}.full-reading{margin-top:30px}#chapters{grid-template-columns:1fr}.bottom .primary{margin-left:auto}.scene:has(.intro-title) .visual img{aspect-ratio:1.25}.stamps{gap:10px;font-size:10px}.caption{font-size:10px}.choice{font-size:14px;padding:12px 14px}.intro-title em{display:block}.reference-table{margin:15px 0}details{margin-top:15px}.map{aspect-ratio:1.5}}
@media(prefers-reduced-motion:reduce){*,*:before,*:after{animation:none!important;transition:none!important;scroll-behavior:auto!important}}html[data-motion=reduce] *,html[data-motion=reduce] *:before,html[data-motion=reduce] *:after{animation:none!important;transition:none!important;scroll-behavior:auto!important}

/* Image dimensions follow the layout instead of HTML intrinsic height. */
.visual{overflow:hidden}.visual img{height:auto}.dna-overlay{width:76%;height:80%}.jar-stage{padding:25px;background:linear-gradient(#17221de8,#17221df5),url('img/jar.webp') center/cover;border-radius:5px}.jar-stage .eyebrow{color:#ecc28a}.quiet.chosen{border-color:var(--cyan)}
@media(max-width:800px){.jar-stage{padding:15px}.scene:has(.intro-title) .visual img{aspect-ratio:1.8}.scene:has(.intro-title) .choices{grid-template-columns:repeat(3,1fr);gap:8px}.scene:has(.intro-title) .choice{text-align:center}.scene:has(.intro-title) .copy h1{font-size:30px;line-height:1.4}.scene:has(.intro-title) .split{gap:20px}.scene:has(.intro-title) .lead{font-size:13px}.scene:has(.intro-title) .copy>.muted{font-size:11px}}

.jar-stage{--ink:#f3eddf;--muted:#b4b6ab;--gold:#ecc28a;--cyan:#8be1d0;color:var(--ink)}.exercise canvas{background:#18241f;border-radius:4px}.mechanism img{height:auto;aspect-ratio:1}
@media(max-width:800px){.numbers b{font-size:22px}.map text{font-size:21px}.scene:has(.intro-title) .bottom{padding-top:10px}}