/* The atlas continues as a field guide: paper, ink, and sound. */
.hanzi{font-family:var(--font-hanzi);font-weight:400}
.section-pad{padding:104px max(6%,calc((100vw - 1220px)/2))}
.section-pad h2,.room-index h2{font:600 clamp(38px,4.15vw,60px)/1.02 var(--font-display);letter-spacing:-.035em;margin:16px 0 24px;text-wrap:balance}
.section-pad p{line-height:1.55}
.sound-word{color:var(--audio)}
.text-link{display:inline-flex;align-items:center;gap:18px;border:0;border-bottom:1px solid var(--brand);background:none;color:var(--brand);font:600 17px var(--font-body);padding:10px 0;min-height:44px;text-decoration:none}
.text-link:hover{text-decoration:underline;text-underline-offset:5px}
.button{display:inline-flex;align-items:center;justify-content:center;gap:16px;border:0;border-radius:999px;background:var(--brand);color:var(--paper);font:600 17px var(--font-body);padding:14px 24px;min-height:48px;text-decoration:none}
.button:hover{filter:brightness(.95)}
audio:focus-visible,summary:focus-visible,input:focus-visible{outline:3px solid var(--brand);outline-offset:5px}
.room-index{position:relative;padding:100px max(6%,calc((100vw - 1220px)/2)) 72px;background:var(--paper)}
.index-heading{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);column-gap:64px;align-items:end;margin-bottom:38px}
.index-heading .eyebrow{grid-column:1/-1;color:var(--brand);margin-bottom:0}
.index-heading h2{margin-bottom:0}
.index-heading>p:last-child{max-width:380px;margin:0 0 3px auto;font-size:18px;line-height:1.5;color:var(--muted)}
.room-links{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:0 44px}
.room-links>a{position:relative;display:grid;grid-template-columns:76px minmax(0,1fr) 22px;align-items:center;gap:20px;min-width:0;min-height:116px;padding:18px 0;text-decoration:none;border-top:1px solid var(--line)}
.room-links>a>span{position:absolute;z-index:1;left:6px;top:67px;display:grid;place-items:center;width:26px;height:30px;border-radius:20px;background:var(--paper);color:var(--brand);font:400 18px var(--font-hanzi)}
.room-illustration{display:block;width:76px;height:76px;object-fit:cover;border-radius:20px;filter:saturate(.76)}
.room-links>a>div{min-width:0}
.room-links h3{font:600 25px/1.1 var(--font-display);letter-spacing:-.025em;margin:0 0 6px}
.room-links p{font-size:16px;line-height:1.4;margin:0;color:var(--muted)}
.room-links b{color:var(--brand);font-size:22px;font-weight:400;justify-self:end;transition:transform 150ms cubic-bezier(.2,0,0,1)}
.room-links>a:hover b{transform:translate(3px,-3px)}
.room-links>a:hover h3{text-decoration:underline;text-underline-offset:5px}
.room-links>a:nth-child(-n+2){grid-template-columns:minmax(0,1fr) 28px;gap:0 20px;padding:0 0 30px;margin-bottom:8px;min-height:0;border-top:0}
.room-links>a:nth-child(-n+2) .room-illustration{grid-column:1/-1;width:100%;height:224px;object-position:50% 52%;margin-bottom:22px;border-radius:20px;filter:saturate(.82)}
.room-links>a:nth-child(-n+2)>span{top:170px;left:18px;width:40px;height:40px;font-size:25px}
.room-links>a:nth-child(-n+2) h3{font-size:30px}
.room-links>a:nth-child(3)>span{color:var(--audio)}
.index-note{margin:22px 0 0;border-top:1px solid var(--line);padding-top:22px;color:var(--muted);font-size:16px}
.listening-section{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:0;padding:0;background:var(--chip-sand);border-block:1px solid var(--line)}
.listening-scene{position:relative;min-height:660px;overflow:hidden;isolation:isolate;background:#22312F}
.sound-paper{position:absolute;width:86%;height:80%;top:10%;left:-8%;border-radius:20px;background:#FBF4E6;transform:rotate(-8deg);overflow:hidden;border:1px solid #EADFC9}
.sound-paper:before{content:'';position:absolute;inset:16px;border:1px solid #EADFC9;border-radius:20px}
.sound-paper svg{position:absolute;inset:0;width:100%;height:100%;fill:none}
.paper-contour{stroke:#CDE3B4;stroke-width:58}
.paper-tone{stroke:#E0633F;stroke-width:3}
.listening-bird{position:absolute;z-index:2;display:block;width:63%;max-width:450px;height:auto;right:2%;bottom:17%;object-fit:contain}
.listening-shadow{position:absolute;z-index:1;width:40%;height:3%;bottom:20%;right:12%;border-radius:50%;background:#22312F;opacity:.13;filter:blur(8px)}
.listening-copy{align-self:center;padding:64px clamp(32px,6vw,96px)}
.listening-copy .eyebrow{color:var(--muted)}
.listening-copy h2{font-size:clamp(46px,5vw,72px);margin-bottom:16px}
.section-lead{font-size:19px;color:var(--muted);margin:0}
.listening-sample{max-width:420px;margin:26px 0 18px;padding-top:20px;border-top:1px solid color-mix(in srgb,var(--muted) 30%,transparent)}
.listening-sample>p:first-child{font-size:17px;margin:0 0 12px}
audio{display:block;width:100%;height:44px;min-width:0;margin:16px 0;accent-color:var(--audio)}
summary{min-height:44px;cursor:pointer;font-size:17px;font-weight:600;padding:10px 0;color:var(--brand)}
#hello-reveal p{display:flex;gap:14px;align-items:baseline;margin:10px 0 0}
#hello-reveal .hanzi{font-size:34px}
.translation{color:var(--muted)}
.voice-fact{font-size:16px;color:var(--muted);margin:24px 0 12px;max-width:340px}
.voice-fact b{font-weight:600;color:var(--ink)}
.audio-status{font-size:15px;color:var(--muted);margin:12px 0}
.audio-status:empty{display:none}
.tone-section{display:grid;grid-template-columns:minmax(0,.78fr) minmax(0,1.22fr);gap:64px;align-items:center;background:var(--paper)}
.tone-heading .eyebrow{color:var(--brand)}
.tone-heading>p:not(.eyebrow){font-size:18px;color:var(--muted)}

.tone-desk{position:relative;background:transparent;border-top:1px solid var(--ink);padding:30px 0 0}
.tone-options{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:8px;border:0;margin:0;padding:0 0 6px;min-width:0}
.tone-options legend{padding:0 0 14px;font-size:17px;font-weight:600}
.tone-options label{display:flex;align-items:center;gap:8px;min-height:48px;cursor:pointer;font-size:14px}
.tone-options label>span{display:flex;flex-direction:column}
.tone-options input{width:18px;height:18px;accent-color:var(--audio);margin:0;flex:none}
.tone-options [lang]{font-size:20px;color:var(--muted)}
.tone-options:disabled{opacity:.65}
.drawing-board{position:relative;margin:24px 0;background:var(--surface);border:1px solid var(--line);border-radius:20px;overflow:hidden}
.drawing-board svg{display:block;width:100%;height:auto;touch-action:none;cursor:crosshair}
.guide-line{fill:none;stroke:var(--muted);stroke-opacity:.3;stroke-width:1;stroke-dasharray:3 6}
#tone-ink,#tone-target{fill:none;stroke-linecap:round;stroke-linejoin:round;stroke-width:6;pointer-events:none}
#tone-ink{stroke:var(--audio)}
#tone-target{stroke:var(--brand);stroke-dasharray:10 10;opacity:0}
.tone-desk.comparing #tone-target{opacity:1}
.pitch-high,.pitch-low{position:absolute;left:8px;font-size:12px;color:var(--muted)}
.pitch-high{top:15%}.pitch-low{bottom:15%}
#draw-hint{position:absolute;inset:0;display:grid;place-items:center;pointer-events:none;font-size:16px;color:var(--muted)}
.tone-desk.has-ink #draw-hint,.tone-desk.comparing #draw-hint{display:none}
.tone-actions{display:flex;justify-content:space-between;gap:16px;align-items:center}
.sound-button{background:var(--audio);color:#1B1814}
.tone-note{font-size:15px;color:var(--muted);min-height:42px;margin:18px 0 8px}
.full-tone-link{font-size:16px}
.method-section{display:grid;grid-template-columns:minmax(0,.9fr) minmax(0,1.1fr);gap:100px;background:#22312F;color:#FBF4E6}
.method-intro .eyebrow{color:#CDE3B4}
.method-intro h2{font-size:clamp(40px,4.1vw,60px)}
.method-intro .official-fact{font-size:18px;margin:40px 0 18px}
.official-fact strong{display:block;font:600 clamp(58px,6vw,84px)/1 var(--font-display);color:#CDE3B4;letter-spacing:-.045em;margin-bottom:4px}
.official-note{max-width:350px;font-size:16px;color:#FBF4E6b3}
.method-section .text-link{color:#CDE3B4;border-color:#CDE3B466}
.beliefs article{display:grid;grid-template-columns:48px minmax(0,1fr);gap:24px;border-top:1px solid #FBF4E633;padding:24px 0}
.beliefs article:last-child{padding-bottom:0}
.beliefs .hanzi{font-size:38px;line-height:1.2;color:#CDE3B4}
.beliefs article:first-child .hanzi{color:#EF8A66}
.beliefs h3{font:600 24px/1.15 var(--font-display);margin:0 0 8px;letter-spacing:-.01em}
.beliefs p{font-size:17px;margin:0;color:#FBF4E6b3}
.closing{position:relative;display:grid;grid-template-columns:minmax(0,1.2fr) minmax(0,.8fr);gap:60px;padding-bottom:28px;align-items:center;overflow:hidden}
.closing-art{grid-column:2;grid-row:1;height:590px;position:relative;align-self:center;border-radius:20px;overflow:hidden}
.closing-art img{display:block;width:100%;height:100%;object-fit:cover;object-position:46% 50%;filter:saturate(.8)}
.closing-copy{grid-row:1;grid-column:1;position:relative;z-index:1}
.closing-copy .eyebrow{color:var(--brand)}
.closing h2{font-size:clamp(36px,3.7vw,54px);margin-top:16px;margin-bottom:26px;text-wrap:initial}
.business-model{font-size:17px;color:var(--muted);max-width:550px;margin:0}
.exits{display:flex;flex-direction:column;align-items:flex-start;gap:12px;margin:30px 0 0}
.placement-link{display:block;max-width:100%;font-size:16px;line-height:1.5}
.endmark{grid-column:1/-1;border-top:1px solid var(--line);padding-top:24px;margin:12px 0 0;color:var(--muted);font-size:14px}
@media(prefers-color-scheme:dark){.sound-paper{background:#4A4128;border-color:#6A6455}.sound-paper:before{border-color:#6A6455}.paper-contour{stroke:#3E4A2F}.paper-tone{stroke:#EF8A66}.listening-scene{background:#1B1814}.listening-bird{filter:brightness(.84)}.room-illustration,.closing-art img{filter:saturate(.7) brightness(.83)}.method-section{background:#1B1814;border-block:1px solid var(--line)}}
@media(min-width:1800px){.listening-copy{padding-inline:12%}.listening-scene{min-height:740px}}
@media(max-width:1100px){.room-links{column-gap:28px}.room-links h3{font-size:23px}.room-links>a{gap:14px}.room-links>a:nth-child(-n+2) .room-illustration{height:190px}.room-links>a:nth-child(-n+2)>span{top:136px}.room-links>a:nth-child(-n+2) h3{font-size:28px}.listening-copy{padding:48px 32px}.listening-scene{min-height:640px}.tone-section{gap:36px}.tone-desk{padding:24px}.tone-options{grid-template-columns:repeat(2,minmax(0,1fr))}.method-section{gap:48px}.closing{gap:32px}.closing-art{height:560px}}
@media(max-width:800px){.section-pad{padding:64px 7%}.section-pad h2{font-size:42px}.room-index{padding:64px 7% 48px}.index-heading{grid-template-columns:minmax(0,1fr);gap:16px;margin-bottom:30px}.index-heading h2{margin:0}.index-heading>p:last-child{margin:0;max-width:none;font-size:17px}.room-links{grid-template-columns:minmax(0,1fr)}.room-links>a:nth-child(-n+2){grid-template-columns:108px minmax(0,1fr) 20px;gap:16px;padding:18px 0;margin:0;border-top:1px solid var(--line);min-height:144px}.room-links>a:nth-child(-n+2) .room-illustration{grid-column:auto;width:108px;height:108px;margin:0}.room-links>a:nth-child(-n+2)>span{top:89px;left:6px;width:28px;height:30px;font-size:19px}.room-links>a:nth-child(-n+2) h3{font-size:26px}.room-links>a{grid-template-columns:76px minmax(0,1fr) 20px;min-height:112px;gap:16px}.room-links h3{font-size:24px}.room-links p{font-size:15px}.index-note{font-size:15px}.listening-section{grid-template-columns:minmax(0,1fr);padding:0}.listening-scene{min-height:0;height:340px}.sound-paper{width:77%;height:118%;left:-4%;top:8%}.listening-bird{width:57%;max-width:270px;right:7%;bottom:5%}.listening-shadow{bottom:11%}.listening-copy{padding:44px 7% 48px}.listening-copy h2{font-size:54px}.listening-sample{max-width:none}.voice-fact{max-width:none}.tone-section{grid-template-columns:minmax(0,1fr);gap:24px}.tone-heading:after{display:none}.tone-heading h2{margin-bottom:18px}.tone-heading>p:not(.eyebrow){margin-bottom:0;font-size:17px}.tone-desk{padding:24px 16px}.tone-options{grid-template-columns:repeat(4,minmax(0,1fr));gap:4px}.tone-options label{font-size:12px;gap:5px}.tone-options input{width:16px;height:16px}.tone-options [lang]{font-size:18px}.tone-actions .button{font-size:15px;padding:12px 16px}.tone-note{font-size:14px}.method-section{grid-template-columns:minmax(0,1fr);gap:36px}.method-intro .official-fact{margin-top:28px}.official-note{max-width:none}.beliefs article{gap:18px;padding:24px 0}.beliefs h3{font-size:24px}.closing{grid-template-columns:minmax(0,1fr);gap:34px;padding-top:48px;padding-bottom:24px}.closing-art{grid-column:1;grid-row:1;width:100%;height:300px}.closing-art img{object-position:50% 50%}.closing-copy{grid-row:2;grid-column:1}.closing h2{font-size:38px}.endmark{font-size:13px;margin-top:12px}.business-model{font-size:17px}.exits{margin-top:24px}.placement-link{font-size:16px}}
@media(max-width:370px){.room-links>a:nth-child(-n+2){grid-template-columns:88px minmax(0,1fr) 18px;gap:12px;min-height:130px}.room-links>a:nth-child(-n+2) .room-illustration{width:88px;height:94px}.room-links>a:nth-child(-n+2)>span{top:75px}.room-links>a:nth-child(-n+2) h3{font-size:24px}.room-links>a{grid-template-columns:64px minmax(0,1fr) 16px;gap:12px}.room-illustration{width:64px;height:76px}.room-links h3{font-size:22px}.tone-options{grid-template-columns:repeat(2,minmax(0,1fr))}.tone-actions{gap:10px}.tone-actions .button{padding:12px}.listening-copy h2{font-size:46px}.closing h2{font-size:34px}}
@media(prefers-reduced-motion:reduce){.room-links b{transition:none}.room-links>a:hover b{transform:none}}

/* A pair of selected plates, followed by the compact room index. */
.room-picture{position:relative;overflow:hidden;border-radius:20px;isolation:isolate}
.room-links>a:nth-child(-n+2) .room-picture{grid-column:1/-1;height:260px;margin-bottom:22px}
.room-links>a:nth-child(-n+2) .room-picture .room-illustration{width:100%;height:100%;margin:0;object-position:50% 0;border-radius:0}
.room-links>a:nth-child(2) .story-picture .room-illustration{position:absolute;width:150%;height:auto;left:-23%;top:-35%;max-width:none}
.room-links>a:nth-child(-n+2)>span{top:206px}
.tone-options label{border-bottom:2px solid transparent;padding-bottom:8px}
.tone-options label:has(input:checked){border-bottom-color:var(--audio)}
@media(max-width:1100px) and (min-width:801px){.room-links>a:nth-child(-n+2) .room-picture{height:230px}.room-links>a:nth-child(-n+2)>span{top:176px}}
@media(max-width:800px){
 .room-links>a:first-child{grid-template-columns:minmax(0,1fr) 20px;gap:0 16px;padding:0 0 24px;border:0}
 .room-links>a:first-child .room-picture{grid-column:1/-1;width:100%;height:184px;margin:0 0 18px}
 .room-links>a:first-child>span{top:136px;left:14px;width:34px;height:34px;font-size:22px}
 .room-links>a:nth-child(2){grid-template-columns:76px minmax(0,1fr) 20px;min-height:112px}
 .room-links>a:nth-child(2) .room-picture{grid-column:auto;width:76px;height:76px;margin:0}
 .room-links>a:nth-child(2) .story-picture .room-illustration{position:static;width:100%;height:100%;object-fit:cover;object-position:40% 50%}
 .room-links>a:nth-child(2)>span{top:67px;width:26px;height:30px;font-size:18px}
 .tone-desk{padding:24px 0 0}
}
@media(max-width:370px){.room-links>a:nth-child(2){grid-template-columns:64px minmax(0,1fr) 16px;gap:12px}.room-links>a:nth-child(2) .room-picture{width:64px}}