@font-face{font-family:Manrope;src:url('./assets/manrope.woff2') format('woff2');font-weight:200 800;font-display:swap}
@font-face{font-family:'Noto Sans TC';src:url('./assets/noto-sans-tc.woff2') format('woff2');font-weight:400 600;font-display:swap}

/* Moving Matter: native black stage, clear research paper and warm action accents. */
:root{
  color-scheme:light;
  --paper:#EDF1F3;
  --surface:#F7F9FA;
  --surface-hover:#E0E7EB;
  --text:#17242C;
  --muted:#52626D;
  --accent:#A93624;
  --accent-hover:#8C2A1B;
  --on-accent:#FFFFFF;
  --line:#BCC8CF;
  --control-line:#778994;
  --media:#080B0D;
  --gutter:max(24px,calc((100vw - 1280px)/2));
  --body:Manrope,'Noto Sans TC',sans-serif;
  --display:Manrope,'Noto Sans TC',sans-serif;
  --ease:cubic-bezier(.16,1,.3,1);
  --radius:2px;
  --void:var(--paper);
  --violet:var(--accent);
  --amber:var(--accent);
}
[data-theme='dark']{
  color-scheme:dark;
  --paper:#17242C;
  --surface:#20313C;
  --surface-hover:#2B404D;
  --text:#EDF1F3;
  --muted:#AEBDC6;
  --accent:#F29880;
  --accent-hover:#FFAF99;
  --on-accent:#17242C;
  --line:#415660;
  --control-line:#7F959F;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:96px;scrollbar-color:var(--control-line) var(--paper)}
body{margin:0;background:var(--paper);color:var(--text);font:16px/1.75 var(--body);-webkit-font-smoothing:antialiased}
h1,h2,h3,p,figure{margin:0}
h1,h2,h3{font-family:var(--display);line-height:1.1;font-weight:600;letter-spacing:-.035em;text-wrap:balance}
a{color:inherit;text-decoration:none;text-underline-offset:.25em;text-decoration-thickness:1px}
button,input,textarea,select{font:inherit;color:inherit}
button{cursor:pointer;background:none;border:0}
button,a{-webkit-tap-highlight-color:transparent;touch-action:manipulation}
button svg{flex-shrink:0}
button:disabled{cursor:default;opacity:.5}
a:focus-visible,button:focus-visible,input:focus-visible,textarea:focus-visible,select:focus-visible,video:focus-visible{outline:2px solid var(--accent);outline-offset:5px}
input,textarea,select{background:var(--surface);border:1px solid var(--control-line);border-radius:var(--radius);padding:12px 16px;min-height:48px;caret-color:var(--accent)}
input::placeholder,textarea::placeholder{color:var(--muted);opacity:1}
img{display:block;max-width:100%;height:auto}
svg{max-width:100%}
p{overflow-wrap:break-word}
::selection{background:var(--accent);color:var(--on-accent)}
::-webkit-scrollbar{width:10px;height:10px}
::-webkit-scrollbar-track{background:var(--paper)}
::-webkit-scrollbar-thumb{background:var(--control-line);border:2px solid var(--paper)}
[hidden]{display:none!important}
.skip-link{position:fixed;top:12px;left:12px;z-index:100;padding:12px 24px;background:var(--text);color:var(--paper);transform:translateY(-160%);min-height:48px}
.skip-link:focus{transform:none}
.section-label,.status-dot,.coordinate-rule,.scene-light,.scene-floor,.scene-label-symbol,.hero-edition,.scroll-circle,#cursor-ring,.cursor-ring{display:none!important}
.effects-ready [data-reveal],.effects-ready [data-reveal]:not(.is-visible){clip-path:none;opacity:1;transform:none}
.light-section{padding-inline:var(--gutter);color:var(--text)}

/* The header is a quiet reference line, with direct, reachable controls. */
.site-header{position:absolute;z-index:30;inset:0 0 auto;min-height:96px;padding:20px var(--gutter);display:flex;align-items:center;justify-content:space-between;gap:24px;background:#000;color:#F4F5F3}
.identity{display:flex;align-items:center;gap:12px;min-height:48px;font-size:16px;font-weight:700;line-height:1.25;min-width:0}
.identity-symbol{width:28px;height:28px;fill:#FF7356;flex:none}
.identity-chinese{display:block;font-size:13px;color:#A9ADB0;font-weight:500;margin-top:4px}
.desktop-nav{display:flex;align-items:center;gap:32px;font-size:14px}
.desktop-nav a{display:flex;align-items:center;min-height:44px;position:relative}
.desktop-nav a::after{content:'';position:absolute;left:0;right:0;bottom:4px;height:1px;background:var(--accent);transform:scaleX(0);transform-origin:left;transition:transform .25s var(--ease)}
.desktop-nav a:hover::after{transform:scaleX(1)}
.header-controls{display:flex;align-items:center;gap:8px;flex-shrink:0}
.language-button,.theme-button,.menu-button{display:flex;align-items:center;justify-content:center;width:44px;min-width:44px;height:44px;padding:8px;border-radius:var(--radius);transition:background .2s ease}
.language-button{gap:4px;font-size:14px;font-weight:600}
.language-button>span{display:none}
.theme-button .theme-sun{display:none}
[data-theme="dark"] .theme-button .theme-sun{display:block}
[data-theme="dark"] .theme-button .theme-moon{display:none}
.theme-button svg{width:20px;height:20px;fill:none;stroke:currentColor;stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round}
.language-button:hover,.theme-button:hover,.menu-button:hover{background:#23272B}
.menu-button{display:none;flex-direction:column;gap:6px}
.menu-button span{display:block;height:1.5px;background:currentColor;width:22px;transition:transform .2s ease}
.menu-button[aria-expanded='true'] span:first-child{transform:translateY(3.75px) rotate(45deg)}
.menu-button[aria-expanded='true'] span:last-child{transform:translateY(-3.75px) rotate(-45deg)}
.mobile-nav{position:absolute;inset:88px 0 auto;display:flex;flex-direction:column;gap:8px;padding:24px var(--gutter);background:#101316;border-bottom:1px solid #34373A}
.mobile-nav a{display:flex;align-items:center;min-height:48px;font-size:20px}
.mobile-nav a:hover{color:var(--accent)}

/* Moving Matter: the native artifact is the interface, directly on the page. */
.hero{--stage-ink:#F4F5F3;--stage-muted:#A9ADB0;--stage-line:#34373A;--stage-accent:#FF7356;position:relative;isolation:isolate;display:grid;grid-template-columns:minmax(0,.76fr) minmax(0,1.24fr);column-gap:48px;row-gap:40px;min-height:100svh;padding:112px var(--gutter) 24px;overflow:clip;background:#000;color:var(--stage-ink)}
.hero-copy{grid-column:1;grid-row:1;align-self:center;min-width:0;padding-block:56px;position:relative;z-index:2}
.hero h1{font-size:clamp(64px,7.7vw,96px);line-height:.98;letter-spacing:-.04em;font-weight:600}
.hero h1>span{display:inline-block}
.hero h1>span:last-child{color:var(--stage-ink)}
.hero-lead{margin-top:32px;font-size:clamp(20px,1.8vw,24px);font-weight:500;line-height:1.5;letter-spacing:-.02em;max-width:26ch;text-wrap:balance}
.hero-description{margin-top:16px;max-width:39ch;color:var(--stage-muted);font-size:16px;line-height:1.85}
.hero-coordinate{display:flex;gap:16px;align-items:center;margin-top:28px;font-size:13px;line-height:1.6;color:var(--stage-muted)}
.hero-coordinate a{color:var(--stage-ink);text-decoration:underline;text-decoration-color:var(--stage-line);text-underline-offset:6px;min-height:44px;display:inline-flex;align-items:center}
.hero-coordinate a:hover{text-decoration-color:var(--stage-accent)}
.hero-research-link{display:inline-flex;align-items:center;gap:16px;min-height:48px;padding:8px 0;margin-top:24px;font-size:14px;color:var(--stage-ink);border-bottom:1px solid var(--stage-line)}
.hero-research-link svg{color:var(--stage-accent);transition:transform .25s var(--ease)}
.hero-research-link:hover svg{transform:translateY(3px)}
.scene-stage{grid-column:2;grid-row:1;display:grid;grid-template-rows:56px minmax(560px,calc(100svh - 232px)) auto;position:relative;min-width:0;max-width:100%}
.scene-player{display:flex;align-items:center;justify-content:space-between;gap:24px;min-width:0;z-index:3;border-bottom:1px solid var(--stage-line)}
.scene-switcher{display:flex;align-self:stretch;gap:24px;min-width:0}
.scene-choice{position:relative;display:flex;align-items:center;gap:20px;min-height:48px;padding:4px 0;color:var(--stage-muted);text-align:left;transition:color .2s ease}
.scene-choice strong{font-size:15px;font-weight:500;white-space:nowrap}
.scene-choice svg{opacity:0;transform:translateX(-8px);transition:opacity .2s,transform .3s var(--ease)}
.scene-choice::after{content:'';position:absolute;inset:auto 0 -1px;height:2px;background:var(--stage-accent);transform:scaleX(0);transform-origin:left;transition:transform .35s var(--ease)}
.scene-choice[aria-pressed='true']{color:var(--stage-ink)}
.scene-choice[aria-pressed='true']::after{transform:scaleX(1)}
.scene-choice[aria-pressed='true'] svg,.scene-choice:hover svg{opacity:1;transform:translateX(0)}
.scene-choice:hover{color:var(--stage-ink)}
.scene-sample-label{font-size:13px;line-height:1.5;color:var(--stage-muted);text-align:right}
.scene-shell{position:relative;min-height:0;min-width:0;background:#000;isolation:isolate}
.official-player-frame{position:absolute;inset:0;width:100%;height:100%;display:block;border:0;background:#000;opacity:0;pointer-events:none;z-index:1}
.official-player-frame[data-slot-state='active']{opacity:1;pointer-events:auto;z-index:2}
.official-player-frame:focus-visible{outline:2px solid var(--stage-accent);outline-offset:-2px}
.scene-context{display:flex;justify-content:space-between;gap:24px;padding-top:18px;border-top:1px solid var(--stage-line);align-items:flex-start;font-size:13px;color:var(--stage-muted);line-height:1.7}
.scene-interaction-hint{max-width:42ch;font-size:13px}
.official-status{text-align:right;max-width:28ch;font-size:13px;font-variant-numeric:tabular-nums}
.scene-notice{position:absolute;top:76px;left:16px;right:16px;z-index:4;padding:10px 14px;pointer-events:none;color:var(--stage-ink);background:#101316;max-width:100%;font-size:14px;line-height:1.6;border-radius:2px}
.scene-notice:empty{display:none}
.hero-bottom{grid-column:1/-1;display:flex;align-items:center;justify-content:space-between;gap:24px;min-height:48px;border-top:1px solid var(--stage-line);padding-top:16px;color:var(--stage-muted);font-size:13px}
.scroll-cue{display:inline-flex;align-items:center;gap:24px;min-height:44px;font-size:14px;color:var(--stage-ink)}
.scroll-cue svg{color:var(--stage-accent);transition:transform .25s var(--ease)}
.scroll-cue:hover svg{transform:translateY(3px)}
.hero a:focus-visible,.hero button:focus-visible{outline-color:var(--stage-accent)}

/* Open research index: the whole ruled entry is one accessible action. */
.work-section{padding-top:96px;padding-bottom:96px;background:var(--paper)}
.section-top{display:flex;justify-content:space-between;align-items:end;gap:32px;padding-top:32px;border-top:1px solid var(--line)}
.section-top h2{font-size:clamp(40px,4.8vw,64px);font-weight:600;line-height:1.15;letter-spacing:-.035em}
.small-period,.title-period{color:var(--accent)}
.work-count{font-size:13px;color:var(--muted);font-variant-numeric:tabular-nums;flex-shrink:0}
.work-filters{display:flex;flex-wrap:wrap;gap:8px;margin:32px 0}
.work-filters button{min-height:44px;padding:10px 20px;font-size:14px;border:1px solid var(--control-line);border-radius:var(--radius);color:var(--muted);transition:background .2s ease,color .2s ease}
.work-filters button[aria-pressed='true']{background:var(--text);border-color:var(--text);color:var(--paper)}
.work-filters button:hover:not([aria-pressed='true']){background:var(--surface-hover);color:var(--text)}
.projects,.research-index.projects{display:block}
.research-index .project,.projects.is-filtered .project-secondary{display:block;margin:0}
.project-visual.study-row{display:grid;width:100%;grid-template-columns:112px minmax(0,1fr) 136px;gap:32px;align-items:center;min-height:224px;padding:32px 16px 32px 0;border:0;border-top:1px solid var(--line);border-radius:0;background:transparent;text-align:left;transition:background .2s ease}
.project-visual.study-row:hover{background:var(--surface)}
.research-index .project:last-child .study-row{border-bottom:1px solid var(--line)}
.study-stage{align-self:start;display:flex;flex-direction:column;gap:12px;color:var(--muted);font-size:13px;padding-top:4px}
.study-number{font:500 32px/1.15 var(--display);letter-spacing:-.03em;color:var(--accent);font-variant-numeric:tabular-nums}
.project-info{min-width:0;display:block;margin:0}
.project-category{font-size:13px;color:var(--muted)}
.research-index .project-info h3,.projects.is-filtered.research-index .project-info h3{font-size:clamp(32px,3.8vw,52px);font-weight:600;line-height:1.15;letter-spacing:-.035em;margin-top:12px;overflow-wrap:anywhere}
.research-index .project-info p{font-size:16px;line-height:1.85;color:var(--muted);max-width:65ch;margin-top:16px}
.study-read{display:flex;align-items:center;justify-content:end;gap:16px;font-size:14px;color:var(--text);min-width:0}
.study-read>span:last-child{font-size:26px;transition:transform .2s var(--ease)}
.study-read svg{width:22px;height:22px;fill:none;stroke:currentColor;stroke-width:1.6}
.study-row:hover .study-read{color:var(--accent)}
.study-row:hover .study-read>span:last-child{transform:translate(2px,-2px)}
.work-footnote{font-size:14px;color:var(--muted);margin-top:32px;max-width:65ch}
.text-button{display:inline-flex;align-items:center;gap:16px;min-height:44px;padding:8px 0;border-bottom:1px solid var(--control-line);font-size:14px;line-height:1.6;transition:color .2s ease,border-color .2s ease}
.text-button>span:last-child{font-size:20px}
.text-button:hover{color:var(--accent);border-color:var(--accent)}

/* A photographic portrait and a reading column, without a decorative mask. */
.about-section{display:grid;grid-template-columns:minmax(0,.65fr) minmax(0,1.35fr);gap:96px;align-items:start;padding-top:96px;padding-bottom:96px;border-top:1px solid var(--line);background:var(--surface)}
.about-portrait{width:100%;max-width:352px;position:relative}
.about-portrait img{width:100%;height:auto;aspect-ratio:413/571;object-fit:cover;object-position:center;border-radius:var(--radius);background:var(--paper)}
.portrait-caption{display:block;font-size:13px;color:var(--muted);margin-top:16px}
.about-content{min-width:0}
.about-content h2{font-size:clamp(30px,3.15vw,48px);font-weight:550;line-height:1.4;letter-spacing:-.03em;margin:0;max-width:24ch}
.about-content>p{font-size:16px;line-height:1.9;color:var(--muted);max-width:70ch;margin-top:24px}
.about-details{display:grid;grid-template-columns:minmax(0,1.1fr) minmax(0,1fr);gap:32px;margin-top:32px;padding-top:24px;border-top:1px solid var(--line)}
.about-details>div{min-width:0}
.about-details>div>span{font-size:13px;color:var(--muted);display:block;margin-bottom:12px}
.about-details strong{font-size:14px;line-height:1.8;font-weight:600;display:block;overflow-wrap:break-word}
.about-details small{font-size:13px;color:var(--muted);display:block;margin-top:8px}
.about-content>.text-button{margin-top:32px}

.contact-section{padding:64px var(--gutter) 0;background:var(--paper);position:relative;overflow:hidden}
.contact-top{display:flex;justify-content:flex-end;gap:24px;color:var(--muted);font-size:13px}
.contact-main{display:grid;grid-template-columns:minmax(0,1.2fr) minmax(0,1fr);gap:64px;align-items:end;padding:64px 0 80px}
.contact-main h2{font-size:clamp(48px,5.8vw,80px);font-weight:600;line-height:1.12;letter-spacing:-.035em}
.contact-details{min-width:0}
.contact-details p{font-size:16px;color:var(--muted);line-height:1.85;max-width:48ch}
.email-link{display:flex;align-items:center;justify-content:space-between;gap:16px;font-size:clamp(18px,1.8vw,26px);font-weight:500;letter-spacing:-.02em;padding:0 0 16px;border-bottom:1px solid var(--control-line);margin-top:32px;min-height:44px;overflow-wrap:anywhere}
.email-link>span{font-size:26px;color:var(--accent);flex:none}
.email-link:hover{color:var(--accent)}
.contact-details .text-button{border:0;margin-top:8px;color:var(--muted)}
.contact-details .text-button:hover{color:var(--accent)}
.copy-feedback{display:block;min-height:24px;font-size:14px;color:var(--accent)}
.site-footer{display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:16px 24px;border-top:1px solid var(--line);padding:24px 0;color:var(--muted);font-size:13px}
.site-footer a{display:inline-flex;align-items:center;min-height:44px;padding:8px 0}
.site-footer a:hover{color:var(--accent)}

/* Reading surfaces preserve the same paper, caption and rule grammar. */
dialog{width:min(880px,calc(100vw - 48px));max-height:calc(100svh - 48px);padding:0;border:0;border-radius:4px;background:var(--paper);color:var(--text);box-shadow:0 24px 72px #09141B50;overflow-x:hidden;overscroll-behavior:contain}
dialog::backdrop{background:#0A151DC2}
.dialog-shell{position:relative}
.dialog-close{position:sticky;float:right;top:16px;z-index:2;display:grid;place-items:center;width:44px;height:44px;margin:16px 16px 0 0;border:1px solid var(--control-line);border-radius:var(--radius);background:var(--paper);font-size:28px;line-height:1}
.dialog-close:hover{background:var(--surface-hover)}
.dialog-content{padding:64px;clear:none}
.dialog-content h2{font-size:clamp(36px,4.5vw,64px);font-weight:600;line-height:1.15;letter-spacing:-.035em;margin:16px 0 24px;overflow-wrap:anywhere}
.dialog-intro{font-size:18px;line-height:1.85;color:var(--muted);max-width:65ch}
.dialog-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:24px}
.dialog-tags span{font-size:13px;border:1px solid var(--line);border-radius:var(--radius);padding:6px 12px;color:var(--muted)}
.dialog-metrics{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;padding:32px 0;margin-top:32px;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.dialog-metrics strong{display:block;font-size:28px;font-weight:600;font-family:var(--display);letter-spacing:-.03em;line-height:1.25;overflow-wrap:anywhere;font-variant-numeric:tabular-nums}
.dialog-metrics span,.dialog-metrics p{font-size:14px;color:var(--muted);line-height:1.7}
.dialog-metrics p{margin-top:12px}
.dialog-body{margin-top:32px}
.dialog-body h3{font-size:24px;line-height:1.4;margin-top:32px}
.dialog-body p{font-size:16px;color:var(--muted);line-height:1.9;max-width:70ch;margin-top:24px}
.dialog-note{font-size:14px;color:var(--muted);line-height:1.8;margin-top:32px}
.dialog-image{width:100%;height:auto;max-height:440px;object-fit:contain;background:#FFFFFF;border-radius:var(--radius);margin-top:32px}
.dialog-content a{color:var(--accent);text-decoration:underline}

@media(max-width:1100px){
  .desktop-nav{gap:24px}
  .about-section{gap:64px}
  .contact-main{gap:48px}
}
@media(max-width:900px){
  .desktop-nav{gap:16px;font-size:13px}
  .identity{gap:10px;font-size:15px}
  .about-section{gap:48px}
  .about-details{grid-template-columns:1fr;gap:24px}
  .contact-main{grid-template-columns:1fr 1fr;gap:32px}
  .contact-main h2{font-size:52px}
  .project-visual.study-row{grid-template-columns:88px minmax(0,1fr) 116px;gap:24px}
}
.dialog-status{display:block;margin:16px 0 0;font-size:14px;font-weight:600;line-height:1.5;color:var(--muted)}
.research-index .project-category{margin-top:12px}
@media(max-width:760px){
  :root{--gutter:24px}
  html{scroll-padding-top:24px}
  .site-header{min-height:88px;padding-block:16px;gap:16px}
  .desktop-nav{display:none}
  .menu-button{display:flex}
  .work-section{padding-top:64px;padding-bottom:64px}
  .section-top{align-items:start;gap:24px;padding-top:24px}
  .section-top h2{font-size:40px}
  .work-count{padding-top:8px}
  .work-filters{margin:24px 0;gap:8px}
  .work-filters button{padding-inline:16px}
  .project-visual.study-row{grid-template-columns:72px minmax(0,1fr);gap:16px 24px;min-height:0;padding:32px 0}
  .research-index .project-info h3,.projects.is-filtered.research-index .project-info h3{font-size:36px;line-height:1.2}
  .study-number{font-size:28px}
  .study-read{grid-column:2;justify-content:start}
  .about-section{grid-template-columns:minmax(0,.65fr) minmax(0,1.35fr);gap:32px;padding-block:64px}
  .about-content h2{font-size:30px}
  .about-content>p{margin-top:24px}
  .contact-main{grid-template-columns:1fr;gap:32px;padding:48px 0 64px}
  .contact-main h2{font-size:clamp(44px,8vw,64px)}
  .contact-details p{max-width:52ch}
  .email-link{max-width:540px;font-size:24px;margin-top:24px}
}
@media(max-width:560px){
  .site-header{min-height:80px;padding-block:16px}
  .mobile-nav{top:80px}

  .identity{font-size:14px;gap:8px}
  .identity-symbol{width:24px;height:24px}
  .identity-chinese{font-size:12px;margin-top:3px}
  .header-controls{gap:4px}
  .section-top{flex-direction:column;gap:16px}
  .section-top h2{font-size:clamp(32px,9vw,40px)}
  .work-count{padding:0}
  .project-visual.study-row{grid-template-columns:56px minmax(0,1fr);gap:16px;min-height:0;padding:32px 0}
  .study-stage{font-size:12px;gap:10px;overflow-wrap:anywhere}
  .study-number{font-size:24px}
  .research-index .project-info h3,.projects.is-filtered.research-index .project-info h3{font-size:clamp(28px,8vw,36px)}
  .research-index .project-info p{font-size:16px;line-height:1.8;margin-top:16px}
  .study-read{font-size:14px}
  .about-section{grid-template-columns:1fr;gap:40px}
  .about-portrait{width:72%;max-width:300px}
  .about-content h2{font-size:30px;max-width:100%}
  .about-details{grid-template-columns:1fr 1fr;gap:24px}
  .contact-section{padding-top:48px}
  .contact-main h2{font-size:clamp(40px,10.7vw,56px)}
  .email-link{font-size:clamp(18px,5.8vw,24px)}
  .site-footer{padding:16px 0}
  .site-footer>span:nth-child(2){display:none}
  dialog{width:calc(100vw - 24px);max-height:calc(100svh - 24px)}
  .dialog-content{padding:64px 24px 32px}
  .dialog-content h2{font-size:36px}
  .dialog-intro{font-size:16px}
  .dialog-metrics{grid-template-columns:1fr;gap:24px;padding-block:24px}
  .dialog-metrics>div{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.2fr);gap:8px 16px;align-items:start}
  .dialog-metrics strong{font-size:26px}
  .dialog-metrics p{grid-column:2;margin-top:0}
  .dialog-close{margin-right:12px}
}
@media(max-width:400px){
  :root{--gutter:20px}
  .site-header{gap:8px}
  .identity-symbol{display:none}
  .header-controls{gap:8px}
  .identity{font-size:13px}
  .site-header{gap:8px}
  .about-details{grid-template-columns:1fr;gap:24px}
}


@media(prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{animation:none!important;transition:none!important}
  .effects-ready [data-reveal]{clip-path:none!important;opacity:1!important}
}

/* Inline composition: the native footer stays reachable without obscuring the actor. */
@media(max-width:1100px){
  .hero{column-gap:32px;grid-template-columns:minmax(0,.72fr) minmax(0,1.28fr)}
  .hero h1{font-size:clamp(60px,7.7vw,84px)}
  .scene-stage{grid-template-rows:56px minmax(560px,calc(100svh - 232px)) auto}
  .scene-context{flex-direction:column;gap:6px}
  .official-status{text-align:left;max-width:100%}
}
@media(max-width:900px){
  .hero{column-gap:24px}
  .hero h1{font-size:clamp(54px,7.8vw,70px)}
  .scene-switcher{gap:18px}
  .scene-choice{gap:10px}
  .scene-sample-label{max-width:9ch}
}
@media(max-width:760px){
  .hero{grid-template-columns:minmax(0,1fr);padding-top:104px;row-gap:24px;min-height:0}
  .hero-copy{grid-column:1;grid-row:1;padding-block:16px 0}
  .hero h1{font-size:clamp(40px,9vw,64px);line-height:1.1}
  .hero h1 br{display:none}
  .hero h1>span:last-child{margin-left:.17em}
  .hero-lead{font-size:20px;margin-top:20px;max-width:40ch}
  .hero-description{margin-top:12px;max-width:50ch;line-height:1.7}
  .hero-coordinate{margin-top:16px}
  .hero-research-link{display:none}
  .scene-stage{grid-column:1;grid-row:2;grid-template-rows:56px 480px auto;margin-inline:0}
  .scene-choice{gap:20px}
  .scene-sample-label{max-width:none}
  .scene-context{flex-direction:row;gap:16px;padding-top:14px}
  .scene-interaction-hint{max-width:29ch}
  .official-status{text-align:right;max-width:24ch}
  .hero-bottom{grid-column:1;font-size:12px}
}
@media(max-width:560px){
  .scene-sample-label{display:none}
  .scene-switcher{width:100%;justify-content:space-between;gap:16px}
  .scene-player{gap:0}
  .hero{padding-top:88px;row-gap:20px;padding-bottom:20px}
  .hero h1{font-size:clamp(35px,9.6vw,52px)}
  .hero-lead{margin-top:16px;font-size:18px;line-height:1.5}
  .hero-description{font-size:16px}
  .hero-coordinate{margin-top:12px}
  .scene-stage{grid-template-rows:52px 440px auto}
  .scene-sample-label{font-size:12px}
  .scene-choice{gap:12px}
  .scene-choice strong{font-size:14px}
  .scene-context{flex-direction:column;gap:6px}
  .scene-interaction-hint{max-width:100%}
  .official-status{max-width:100%;text-align:left}
  .hero-bottom>span{display:none}
  .hero-bottom .scroll-cue{width:100%;justify-content:space-between}
}
@media(max-width:400px){
  .hero{padding-top:88px}
  .scene-switcher{gap:24px}
  .scene-sample-label{max-width:9ch}
  .scene-stage{grid-template-rows:52px 420px auto}
}
@media(prefers-reduced-motion:reduce){
  .scene-choice svg,.scene-choice::after,.hero-research-link svg,.scroll-cue svg{transition:none;transform:none}
}