/* Pixel exhibition: fixed upper exhibits, one visitor on the lower path. */
:root{color-scheme:dark;--ink:#091c2b;--panel:#112d3c;--line:#31525e;--text:#f0f1db;--muted:#a6bec6;--gold:#ffcf70;--mint:#8ee0c6}
*{box-sizing:border-box}
html{font-size:16px}
body{margin:0;background:var(--ink);color:var(--text);font-family:"Malgun Gothic","Apple SD Gothic Neo",sans-serif;line-height:1.65;word-break:keep-all}
body.game-page{transition:background-color .45s ease;--ambient-wash:transparent}
body[data-era=school]{--ink:#102a24;--panel:#173b32;--line:#416d57;--gold:#c9f294;--mint:#abe4ba;--ambient-wash:#56c88466}
body[data-era=university]{--ink:#10243d;--panel:#18344f;--line:#496e94;--gold:#a9d9ff;--mint:#b4e3ff;--ambient-wash:#559be077}
body[data-era=military]{--ink:#302128;--panel:#47313a;--line:#986b69;--gold:#ffc28c;--mint:#ffdab5;--ambient-wash:#ef965e88}
body[data-era=lab]{--ink:#102b30;--panel:#1d4147;--line:#5b8a90;--gold:#baf5e9;--mint:#bcf3ed;--ambient-wash:#79d8cb66}
body[data-era=office]{--ink:#101b32;--panel:#1b2d49;--line:#405e87;--gold:#c8d7ff;--mint:#adc9fa;--ambient-wash:#6174bc88}
/* One viewport-wide wash follows the current era, including adjacent rooms,
   avatars and UI. It never consumes pointer input or keyboard focus. */
.game-page::after{content:"";position:fixed;inset:0;z-index:20;pointer-events:none;mix-blend-mode:soft-light;background:var(--ambient-wash);transition:background-color .45s ease}
a{color:inherit;text-decoration:none}button,input{font:inherit}button{color:inherit;cursor:pointer;touch-action:manipulation}button,a,input{-webkit-tap-highlight-color:transparent}button:disabled{cursor:default;opacity:.55}a:hover{color:var(--gold)}
button:focus-visible,a:focus-visible,input:focus-visible,summary:focus-visible,[tabindex]:focus-visible{outline:3px solid var(--gold);outline-offset:4px}
h1,h2,h3,p{margin-top:0}kbd{display:inline-block;font-family:inherit;font-size:.8rem;border:1px solid #75979f;padding:0 5px;margin:0 2px;line-height:1.6}
[hidden]{display:none!important}
.shell-header,.shell-footer{max-width:1360px;margin:auto;display:flex;justify-content:space-between;align-items:center;gap:20px;padding:20px 40px}
.shell-header{border-bottom:1px solid var(--line)}.wordmark{font-size:1.4rem;font-weight:800;letter-spacing:-.6px}.wordmark span{color:var(--gold)}
.header-note{color:var(--muted);font-size:.875rem}.overline{font-size:.75rem;font-weight:700;letter-spacing:1.5px;color:var(--mint)}.quiet-link{font-size:.875rem;border-bottom:1px solid #6b8c91;padding:4px 0}
.shell-footer{color:var(--muted);font-size:.875rem;border-top:1px solid var(--line);margin-top:28px}
.entry-main{max-width:1100px;margin:auto;padding:50px 40px 0}.entry-intro{margin-bottom:36px}.entry-intro .overline{margin-bottom:12px}
.entry-intro h1{font-size:clamp(2rem,4vw,3rem);line-height:1.35;letter-spacing:-1.5px;margin-bottom:14px}.entry-intro>p:last-child{color:var(--muted);font-size:1rem}
.mode-grid{display:grid;grid-template-columns:1fr 1fr;gap:28px}.mode-card{display:block;border:2px solid #385b67;background:var(--panel);box-shadow:5px 5px 0 #03111b;transition:transform .15s,border-color .15s}
.mode-card:hover{transform:translateY(-4px);border-color:var(--gold)}.mode-top{display:flex;justify-content:space-between;align-items:center;gap:8px;padding:18px 22px;font-size:.75rem;letter-spacing:1px}.mode-tag{font-size:.875rem;letter-spacing:0}
.read-card{color:#203e46;background:#eff0df;border-color:#b8c9b6}.read-card:hover{color:#203e46}
.read-card .mode-tag{color:#59726f}.reading-preview{height:240px;background:#fafbf4;border:1px solid #ced8c8;margin:0 24px;padding:26px;box-shadow:5px 0 0 #ccd5c3}
.reading-preview p{display:flex;justify-content:space-between;gap:12px;font-size:.875rem;font-weight:700}.reading-preview p span{font-size:.65rem;letter-spacing:1px;color:#527571}
.reading-preview strong{display:block;font-size:1.5rem;line-height:1.65;letter-spacing:-.5px;margin:20px 0}.preview-rule{height:1px;background:#d3dccd}.preview-tags{display:flex;gap:8px;margin-top:16px}.preview-tags span{font-size:.75rem;padding:2px 9px;border:1px solid #cad6c7}
.studio-preview{height:240px;position:relative;overflow:hidden;background:#668c9c url("assets/rooms-open-v10.webp") 100% 100%/200% 200%;image-rendering:pixelated}
.preview-caption{position:absolute;left:16px;top:14px;background:#0b2438ed;border:1px solid #77b4ac;padding:5px 12px;color:var(--gold);font-size:.875rem}
.pixel-sprite{display:block;width:80px;height:80px;background-image:none;background-size:300% 200%;background-repeat:no-repeat;image-rendering:pixelated}
.pixel-sprite.student{background-position:0 0}.pixel-sprite.developer{background-position:50% 0}.pixel-sprite.visitor-front{background-position:100% 0}.pixel-sprite.visitor-back{background-position:0 100%}.pixel-sprite.visitor-left{background-position:50% 100%}.pixel-sprite.visitor-right{background-position:100% 100%}
.pixel-sprite.schoolboy,.pixel-sprite.soldier{background-image:url("assets/school-military-sprites-v3.png");background-size:200% 100%}.pixel-sprite.schoolboy{background-position:0 0}.pixel-sprite.soldier{background-position:100% 0}
.pixel-sprite.soldier-cook{background-image:url("assets/school-military-sprites-v3.png");background-size:200% 100%;background-position:100% 0}.pixel-sprite.developer-coffee{background-position:50% 0}
.era-art-ready .pixel-sprite.soldier-cook,.era-art-ready .pixel-sprite.developer-coffee{background-image:url("assets/junbo-props-v4.webp");background-size:300% 100%}.era-art-ready .pixel-sprite.soldier-cook{background-position:0 0}.era-art-ready .pixel-sprite.developer-coffee{background-position:50% 0}
.pixel-sprite.lab-scientist{background-position:50% 0}.era-art-ready .pixel-sprite.lab-scientist{background-image:url("assets/junbo-lab-v5.png");background-size:100% 100%;background-position:0 0}
.soccer-ball{display:none;position:absolute;left:58px;top:50px;width:30px;height:30px;background:url("assets/junbo-props-v4.webp") 100% 0/300% 100% no-repeat;image-rendering:pixelated}
.era-art-ready .visitor[data-outfit=sport] .soccer-ball{display:block}.visitor[data-facing=left] .soccer-ball{left:-8px}
.visitor.walking[data-outfit=sport] .soccer-ball{animation:juggle .72s ease-in-out infinite}
@keyframes juggle{0%,100%{transform:translateY(0) rotate(0deg)}40%{transform:translateY(-34px) rotate(155deg)}75%{transform:translateY(-12px) rotate(280deg)}}
.preview-npc{position:absolute;left:calc(50% - 40px);top:78px}.preview-visitor{position:absolute;left:calc(66% - 32px);bottom:17px;width:64px;height:64px}
.mode-copy{padding:24px;border-top:1px solid #86a59a44}.mode-copy h2{font-size:1.4rem;margin-bottom:9px;letter-spacing:-.5px}.mode-copy p{font-size:1rem;color:var(--muted);min-height:52px;margin-bottom:18px}
.read-card .mode-copy p{color:#506b70}.mode-action{display:inline-block;font-size:.875rem;font-weight:700;background:#ffcf70;color:#233c42;padding:10px 18px;box-shadow:3px 3px 0 #020c1490}
.read-card .mode-action{background:#173e47;color:#f2f5e2}.entry-footnote{font-size:.875rem;text-align:center;color:var(--muted);margin:28px 0}
.game-shell{max-width:1360px;margin:auto;padding:24px 40px 0}.game-heading{display:flex;justify-content:space-between;align-items:center;gap:20px;margin-bottom:20px}.game-heading .overline{letter-spacing:.5px;margin-bottom:5px}.game-heading h1{font-size:1.7rem;letter-spacing:-.7px;margin:0}
.room-tabs{display:flex;align-items:center;gap:10px;border-bottom:1px solid var(--line)}.room-tabs button{border:0;background:none;border-bottom:3px solid transparent;padding:12px 20px;font-size:1rem;color:var(--muted)}
.room-tabs button[aria-pressed=true]{border-bottom-color:var(--gold);color:var(--gold)}.room-tabs a{margin-left:auto;font-size:.875rem;color:var(--muted)}
.room-toolbar{display:flex;justify-content:space-between;align-items:center;gap:20px;color:var(--muted);font-size:.875rem;padding:12px 0}.room-toolbar p{margin:0}.motion-control{display:flex;align-items:center;gap:6px;white-space:nowrap}.motion-control input{accent-color:var(--gold);width:17px;height:17px}
.viewport{height:520px;position:relative;overflow:hidden;border:3px solid #527977;background:#12454e;box-shadow:0 0 0 1px #091521,5px 5px 0 #030f19;isolation:isolate}
.world{position:absolute;top:0;left:0;width:1800px;height:520px;will-change:transform}
.scene-backdrop{position:absolute;inset:0;display:flex;image-rendering:pixelated;background:#b9c9cb}
.scene-bay{flex:0 0 600px;height:520px;background-image:url("assets/rooms-open-v10.webp");background-size:1200px 1040px;background-repeat:no-repeat}
.scene-school{background-position:0 0}.scene-university{background-position:-600px 0}.scene-military{background-position:0 -520px}.scene-office{background-position:-600px -520px}
.scene-lab{background-image:url("assets/lab-open-v10.webp");background-position:0 0;background-size:600px 520px}
.game-page[data-scene=gallery] .scene-backdrop{display:grid;grid-template-columns:repeat(3,600px);grid-template-rows:repeat(3,520px);width:1800px;background:#b9c9cb}
.game-page[data-scene=gallery] .scene-bay{width:480px;height:416px;margin:30px 60px 74px;background-size:960px 832px;box-shadow:0 0 0 3px #527977}
.game-page[data-scene=gallery] .scene-university{background-position:-480px 0}.game-page[data-scene=gallery] .scene-office{background-position:-480px -416px}
.gallery-map{margin-top:18px;padding:16px;border:1px solid var(--line);background:var(--panel)}.gallery-map-heading{display:flex;justify-content:space-between;align-items:center;gap:12px;margin-bottom:12px}.gallery-map h2{font-size:1rem;margin:0}.gallery-map p{font-size:.875rem;color:var(--muted);margin:0}
.gallery-map-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:8px}.gallery-map-grid button{border:1px solid #52717a;background:#163744;padding:12px;text-align:left;font-size:.875rem;line-height:1.5;min-height:72px}.gallery-map-grid button span{display:block;font-size:.75rem;color:var(--muted);margin-bottom:4px}.gallery-map-grid button[aria-current=true]{border-color:var(--gold);box-shadow:inset 0 0 0 1px var(--gold);color:var(--gold);background:#28505a}.gallery-map-grid button:hover{border-color:var(--gold)}
.exhibits{position:absolute;inset:0}.exhibit{position:absolute;top:20px;left:0;width:350px;transform:translateX(-50%);text-align:left}
.exhibit-info{min-height:183px;padding:16px 20px;background:#092638ed;border:2px solid #6c9d98;box-shadow:3px 3px 0 #041523b0}
.exhibit.current .exhibit-info{border-color:var(--gold)}.exhibit-info .overline{margin-bottom:7px;letter-spacing:.5px;color:#acd9c5}.exhibit-info h2{font-size:1.2rem;line-height:1.45;margin:0 0 8px;color:#f2f1db}.exhibit-info p{font-size:.875rem;color:#bad1cd;margin:0 0 12px}
.exhibit-info .exhibit-result{font-size:1.3rem;color:var(--gold);font-weight:700}.exhibit-info button{background:#154b55;color:#e9f4df;border:1px solid #8bbdb0;box-shadow:2px 2px 0 #06141c;padding:5px 12px;font-size:.875rem}
.exhibit{height:310px}.scenic-exhibit .exhibit-info{min-height:0;padding:12px 20px;width:max-content;max-width:100%;margin:auto}.scenic-exhibit .exhibit-info h2{margin:0}
.npc-display{width:104px;position:absolute;top:193px;left:50%;transform:translateX(-50%);display:flex;align-items:center;flex-direction:column;pointer-events:none}
.npc-display .pixel-sprite{width:104px;height:104px}.npc-label{font-size:.75rem;line-height:1.45;color:#ededd2;padding:2px 10px;background:#173b3dea;border:1px solid #aac3a66b}
.actor{position:absolute;top:0;left:0;width:80px;height:88px;pointer-events:none;will-change:transform}.actor-name{display:table;position:absolute;left:50%;bottom:-6px;transform:translateX(-50%);background:#ffcf70;color:#173841;padding:1px 8px;font-size:.75rem;font-weight:700;white-space:nowrap;border:1px solid #68441f;line-height:1.6}
.actor.walking .pixel-sprite{animation:walk .18s steps(2,end) infinite alternate}
.scene-corner{position:absolute;inset:auto 12px 6px;display:flex;justify-content:space-between;font-size:.75rem;color:#ecddb9;pointer-events:none;text-shadow:1px 1px #19372a}
.timeline-nav{display:grid;grid-template-columns:repeat(6,minmax(0,1fr));gap:8px;margin-top:15px}.timeline-nav button{background:#123442;border:1px solid #436875;padding:10px;font-size:.875rem;color:var(--muted)}
.timeline-nav button[aria-current=true]{border-color:var(--gold);color:var(--gold);background:#24484b}.timeline-nav button span{display:block;font-size:.75rem;color:#b1ccd0;margin-top:3px}
.interaction-strip{display:flex;justify-content:space-between;align-items:center;gap:18px;padding:18px 0;border-bottom:1px solid var(--line);min-height:108px}.location-copy{display:flex;flex-direction:column;gap:3px}.location-copy .overline{font-size:.75rem;letter-spacing:.5px}.location-copy strong{font-size:1.05rem}.location-copy>span:last-child{font-size:.875rem;color:var(--muted)}
.action-button{flex-shrink:0;background:var(--gold);color:#163b42;border:1px solid #e8a954;padding:12px 18px;font-size:.875rem;font-weight:700;box-shadow:3px 3px 0 #010d16}.action-button kbd{border-color:#8d7b4b;margin-left:8px}
.control-bar{display:flex;justify-content:space-between;align-items:center;gap:20px;padding:18px 0 0}.control-bar p{font-size:.875rem;color:#d2e4df;margin:0}.control-bar p>span:last-child{font-size:.75rem;color:var(--muted)}
.direction-pad{display:flex;gap:8px;flex-shrink:0}.direction-pad button{width:50px;height:48px;font-size:1.3rem;border:2px solid #688f93;background:#163947;box-shadow:3px 3px 0 #03121b;touch-action:none;user-select:none}
.direction-pad button:active{background:#426f6d;border-color:var(--gold)}
.game-page[data-scene=gallery] .direction-pad{display:grid;grid-template-columns:repeat(3,50px);grid-template-rows:repeat(2,48px);gap:6px}
.direction-pad [data-dir=up]{grid-column:2;grid-row:1}.direction-pad [data-dir=left]{grid-column:1;grid-row:2}.direction-pad [data-dir=down]{grid-column:2;grid-row:2}.direction-pad [data-dir=right]{grid-column:3;grid-row:2}
dialog{color-scheme:light;width:min(820px,calc(100% - 32px));max-height:85dvh;padding:0 30px 30px;background:#f2f4e8;color:#213e45;border:3px solid #6c9894;box-shadow:8px 8px 0 #010c17a0;overflow:auto}
dialog::backdrop{background:#031224dd}body:has(dialog[open]){overflow:hidden}
.dialog-top{display:flex;align-items:center;justify-content:space-between;gap:12px;position:sticky;top:0;padding:16px 0;background:#f2f4e8;z-index:1;border-bottom:1px solid #bdcec2;margin-bottom:20px}.dialog-top .overline{color:#316e64;letter-spacing:1px}.dialog-top button{background:none;color:#233f46;border:1px solid #7f9c94;padding:7px 12px;font-size:.875rem}
dialog h2{font-size:1.6rem;line-height:1.45;letter-spacing:-.5px}dialog h3{font-size:1.05rem;color:#216b5d;margin:24px 0 8px}dialog p,dialog li{font-size:1rem;line-height:1.85}dialog ul{padding-left:22px}dialog .period{color:#5b7479;font-size:.875rem}
.detail-result{background:#dfead9;border-left:3px solid #367e6b;padding:16px;font-weight:700}.detail-links{display:flex;flex-wrap:wrap;gap:14px;border-top:1px solid #c0d2c4;margin-top:24px;padding-top:18px}.detail-links a{color:#255e55;border-bottom:1px solid;font-size:.875rem}dialog a:hover{color:#17588b}
dialog details{border-top:1px solid #b7cbbd;margin-top:22px;padding-top:16px}dialog summary{cursor:pointer;font-weight:700}
dialog pre{white-space:pre;overflow:auto;background:#112c39;color:#e2f2d9;padding:18px;font-size:.875rem;line-height:1.7}dialog .code-caption{font-size:.875rem;color:#4f6b6d}dialog .flow-list{display:grid;gap:8px;padding-left:24px}
.skip-link{position:absolute;left:10px;top:-100px;padding:8px;background:var(--ink);z-index:9}.skip-link:focus{top:10px}.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip-path:inset(50%);white-space:nowrap}
.reduce-motion,.reduce-motion::after,.reduce-motion *{animation:none!important;transition:none!important}
@keyframes walk{from{transform:translateY(0)}to{transform:translateY(-3px)}}
@media(max-width:700px){
 .shell-header,.shell-footer{padding:17px 22px}.header-note{display:none}.entry-main{padding:32px 22px 0}.entry-intro h1{font-size:2rem}.entry-intro{margin-bottom:26px}
 .mode-grid{grid-template-columns:1fr;gap:24px}.mode-top{padding:15px 18px}.mode-copy{padding:20px}.mode-copy p{min-height:0}.reading-preview,.studio-preview{height:215px}.reading-preview{padding:22px}.reading-preview strong{font-size:1.3rem}.reading-preview p span{display:none}
 .game-shell{padding:20px 14px 0}.game-heading h1{font-size:1.45rem}.game-heading .overline{font-size:.75rem}.room-tabs{gap:0;flex-wrap:wrap}.room-tabs button{padding:12px;font-size:.875rem}.room-tabs a{font-size:.75rem;padding:10px 0}
 .room-toolbar{font-size:.75rem;gap:10px;align-items:flex-start}.room-toolbar p{max-width:220px}.viewport{border-width:2px}
 .exhibit{width:270px}.exhibit-info{padding:14px 16px;min-height:190px}.exhibit-info h2{font-size:1.1rem}.exhibit-info .exhibit-result{font-size:1.2rem}.npc-display{top:200px}.npc-display .pixel-sprite{width:96px;height:96px}
 .timeline-nav{grid-template-columns:repeat(3,minmax(0,1fr));gap:5px}.timeline-nav button{font-size:.8rem;padding:9px 5px}.timeline-nav button span{font-size:.75rem}
 .gallery-map{padding:10px}.gallery-map-heading{align-items:flex-start;flex-direction:column;gap:4px}.gallery-map-grid{gap:5px}.gallery-map-grid button{padding:8px 6px;font-size:.8rem}.gallery-map-grid button span{font-size:.75rem}
 .interaction-strip{align-items:stretch;flex-direction:column;gap:12px;padding:16px 0}.control-bar{flex-direction:column;align-items:stretch;gap:16px}.control-bar p{font-size:.75rem;text-align:center}.direction-pad{justify-content:center}
 .shell-footer{font-size:.75rem;gap:12px}dialog{padding:0 18px 24px}dialog h2{font-size:1.35rem}.dialog-top button{white-space:nowrap}
}
@media(max-width:350px){.exhibit{width:252px}.mode-top{font-size:.65rem}.mode-tag{font-size:.75rem}.reading-preview strong{font-size:1.1rem}.shell-footer{flex-wrap:wrap}}
@media(prefers-reduced-motion:reduce){*,*::before,*::after{animation:none!important;transition:none!important}}

/* One identity sheet, six eras. Visitors deliberately use a separate atlas. */
.game-page .pixel-sprite.junbo-identity,.entry-page .pixel-sprite.junbo-identity{background-image:url("assets/junbo-life-stages-v7.webp");background-size:300% 200%;background-position:var(--junbo-x,100%) var(--junbo-y,100%)}
.junbo-identity.schoolboy{--junbo-x:0%;--junbo-y:0%}.junbo-identity.student{--junbo-x:50%;--junbo-y:0%}.junbo-identity.soldier-cook{--junbo-x:100%;--junbo-y:0%}
.junbo-identity.lab-scientist{--junbo-x:0%;--junbo-y:100%}.junbo-identity.developer-early{--junbo-x:50%;--junbo-y:100%}.junbo-identity.developer-coffee,.junbo-identity.developer{--junbo-x:100%;--junbo-y:100%}

/* Gallery: freestanding exhibits, no resume scenery or room partitions. */
.game-page[data-scene=gallery] .scene-backdrop{background-color:#cbd9dc;background-image:linear-gradient(#587b8c13 1px,transparent 1px),linear-gradient(90deg,#587b8c13 1px,transparent 1px);background-size:40px 40px}
.game-page[data-scene=gallery] .scene-bay{width:600px;height:520px;margin:0;background:none;box-shadow:none}
.gallery-exhibit .station-art{position:absolute;top:0;left:50%;transform:translateX(-50%);display:block;width:320px;height:320px;background:url("assets/gallery-objects-v7.webp") 0 0/200% 100% no-repeat;image-rendering:pixelated;pointer-events:none}
.gallery-exhibit .station-computer{background-position:100% 0}
.gallery-exhibit .station-info{position:absolute;top:48px;left:50%;transform:translateX(-50%);width:224px;text-align:center;color:#1a394a}
.gallery-exhibit .station-info .overline{font-size:12px;line-height:1.4;letter-spacing:.5px;color:#476775;margin:0 0 5px}
.gallery-exhibit .station-info h2{font-size:17px;line-height:1.35;letter-spacing:-.5px;margin:0 0 6px;color:#142e41}
.station-result{font-size:14px;line-height:1.4;font-weight:700;color:#245f70;margin:0 0 8px}
.station-info button{font-size:14px;line-height:1.4;min-height:30px;padding:4px 9px;border:1px solid #78949e;border-radius:4px;background:#e3edf2;color:#173e50}
.gallery-exhibit.current .station-info button{background:#173e50;color:#fff;border-color:#173e50}
.gallery-exhibit.computer-exhibit .station-info{top:59px;width:144px}.computer-exhibit .station-info h2{font-size:15px;margin-bottom:5px}.computer-exhibit .station-info .overline{font-size:11px;margin-bottom:3px}
.station-empty-note{font-size:13px;color:#486677;margin:0}.empty-exhibit .station-art{opacity:.5}
.art-unavailable .station-info{background:#edf4f7;border:1px solid #92b0bf;padding:8px;border-radius:5px}

/* Finished exhibition shell. World coordinates stay independent of the UI. */
:root{--text:#f3f6fa;--muted:#b5c7d6;--surface:#0c1c2ae8}
.shell-header{max-width:1480px;padding:18px 40px;border-bottom-color:#ffffff12}
.shell-footer{max-width:1480px;border-top-color:#ffffff18;padding:22px 40px}
.quiet-link{min-height:40px;display:inline-flex;align-items:center;border-color:#ffffff36;overflow-wrap:anywhere}
.overline{font-size:.75rem;letter-spacing:1.8px}
.entry-page{background:radial-gradient(ellipse at 90% 0,#173448 0,transparent 55%),#091725}
.entry-main{max-width:1200px;padding-top:44px}
.entry-intro{display:grid;grid-template-columns:1.2fr 1fr;column-gap:48px;align-items:end;margin-bottom:32px}
.entry-intro .overline{grid-column:1/-1;color:#94dacb}
.entry-intro h1{font-size:clamp(2rem,3.8vw,3.3rem);font-weight:800;margin:0;letter-spacing:-1.8px}
.entry-intro>p:last-child{margin:0;font-size:1.0625rem;line-height:1.9}
.mode-grid{gap:24px}.mode-card{border:1px solid #ffffff26;border-radius:16px;overflow:hidden;box-shadow:0 18px 50px #0003;background:#102536}
.mode-card:hover{box-shadow:0 22px 54px #0005}.mode-top{padding:20px 24px;color:#b9ced8;letter-spacing:1.2px}
.mode-tag{font-size:.875rem;color:#b9ced8}.read-card{background:#eaf0f5;color:#142c40;border-color:#d7e3ed}
.read-card:hover{color:#142c40}.read-card .mode-top,.read-card .mode-tag{color:#486278}
.reading-preview{margin:0 30px;height:244px;background:#fff;border-color:#c8d6e2;border-radius:6px 6px 0 0;box-shadow:8px 8px 0 #b4c6d74d;padding:26px 28px}
.reading-preview p span{font-size:.75rem;color:#597284}.reading-preview strong{line-height:1.7;font-size:1.5rem;margin:24px 0 18px}
.preview-rule{background:#d9e2ea}.preview-tags span{border-color:#cfdae4;border-radius:4px;font-size:.8125rem}
.studio-preview{height:244px;margin:0 22px;border-radius:6px;box-shadow:inset 0 0 0 1px #ffffff30}
.preview-caption{border:0;border-radius:4px;color:#f7faff;background:#102a3fed;font-size:.875rem}
.mode-copy{padding:26px 28px;border-top:0}.mode-copy h2{font-size:1.5rem}.mode-copy p{font-size:1rem;line-height:1.85;min-height:60px}
.mode-action{border-radius:6px;background:#abe9d7;color:#133b3b;padding:12px 20px;box-shadow:none;font-size:1rem}
.read-card .mode-action{background:#193d58;color:white}.entry-footnote{margin:26px auto 0;max-width:580px;line-height:1.8}
.game-shell{max-width:1480px;padding:22px 40px 0}.game-heading{margin-bottom:18px}
.game-heading h1{font-size:1.75rem;letter-spacing:-1px}.game-heading .overline{font-size:.75rem;margin-bottom:5px}
.room-tabs{border-bottom:1px solid #ffffff24;gap:12px}.room-tabs button{padding:12px 6px;margin-right:20px;font-size:1rem}
.room-tabs button:hover{color:var(--text)}.room-tabs a{color:var(--text);min-height:44px;display:flex;align-items:center}
.room-toolbar{padding:12px 0;font-size:.875rem;gap:16px}.room-toolbar p{max-width:none}.motion-control{min-height:28px}
.exhibition-layout{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:22px;align-items:start}
.exhibition-stage{min-width:0}.viewport{border:1px solid #91afa677;border-radius:12px;box-shadow:0 18px 50px #0003;height:520px}
.world{transform-origin:0 0}.viewport:focus-visible{outline:2px solid var(--gold);outline-offset:4px}
.scene-corner{inset:auto 14px 12px;font-size:.75rem;color:white;text-shadow:none}
.scene-corner span{background:#102330e8;border:1px solid #ffffff30;padding:3px 9px;border-radius:4px}
.exhibit{top:24px;width:340px}.exhibit-info{border:1px solid #7397a280;background:#0b2033f2;border-radius:8px;padding:16px 20px;min-height:172px;box-shadow:0 5px 20px #0003;transition:opacity .25s,border-color .25s}
.exhibit:not(.current) .exhibit-info{opacity:.65}.exhibit.current .exhibit-info{border-color:var(--gold);box-shadow:0 0 0 2px #ffffff16,0 8px 24px #0004}
.exhibit-info h2{font-size:1.1875rem;letter-spacing:-.5px;color:#fff;line-height:1.5}.exhibit-info p{color:#c8d8e6;font-size:.875rem;line-height:1.65;margin-bottom:10px}
.exhibit-info .overline{font-size:.8125rem;color:#a9cec9;letter-spacing:.2px}
.exhibit-info button{min-height:36px;background:#234c61;border-color:#779caa;border-radius:4px;box-shadow:none;padding:5px 12px}
.exhibit-info button:hover{background:#31667b}.exhibit-info .exhibit-result{font-size:1rem;line-height:1.6;color:var(--gold)}
.scenic-exhibit .exhibit-info{padding:14px 18px}.npc-display{top:193px}.npc-display .pixel-sprite{width:112px;height:104px}
.npc-label{border-radius:4px;background:#102b3de8;border-color:#8faeac55;font-size:.75rem}
.gallery-exhibit .npc-display{top:210px}.gallery-exhibit .npc-display .pixel-sprite{width:92px;height:84px}
.actor-name{border:0;border-radius:3px;background:#f6dfa1;color:#162d3c;font-size:.75rem;padding:2px 8px}
.control-bar{padding:14px 2px 0;gap:14px;min-height:64px}.control-bar p{font-size:.875rem;line-height:1.8;text-align:left}.control-bar p>span:last-child{font-size:.875rem}
.touch-help{display:none}.direction-pad button{width:48px;height:44px;border:1px solid #ffffff44;border-radius:7px;box-shadow:0 3px 0 #0004;background:#ffffff0c}
.direction-pad button:hover{background:#ffffff18}.direction-pad button:active{transform:translateY(2px);box-shadow:none}
.game-page[data-scene=gallery] .direction-pad{grid-template-columns:repeat(3,48px);grid-template-rows:repeat(2,44px);gap:5px}
.exhibition-guide{background:var(--surface);border:1px solid #ffffff24;border-radius:12px;padding:20px;min-height:520px}
.interaction-strip{padding:0 0 20px;display:flex;flex-direction:column;align-items:stretch;gap:16px;min-height:0;border-bottom-color:#ffffff1f}
.location-copy{gap:7px}.location-copy strong{font-size:1.125rem;line-height:1.55;letter-spacing:-.4px}.location-copy .overline{color:var(--mint);font-size:.75rem;letter-spacing:1px}.location-copy>span:last-child{font-size:.875rem;color:#afc4d5}
.action-button{border:0;border-radius:6px;box-shadow:none;min-height:44px;padding:11px 12px;font-size:.9375rem;background:var(--gold);color:#132d3b}
.action-button:disabled{background:#ffffff0c;color:#a9bcc9;opacity:1}.action-button:not(:disabled):hover{filter:brightness(1.08)}
.guide-heading{display:flex;justify-content:space-between;align-items:center;gap:8px;margin:19px 0 12px}.guide-heading h2{font-size:.875rem;margin:0;font-weight:600}.guide-heading span{font-size:.75rem;color:var(--muted)}
.timeline-nav{grid-template-columns:1fr;margin:0;gap:3px}.timeline-nav button{border:1px solid transparent;border-left:2px solid #496271;background:transparent;border-radius:0 5px 5px 0;padding:8px 12px;text-align:left;font-size:.875rem;line-height:1.5;color:#d5e1e8}
.timeline-nav button:hover{background:#ffffff09}.timeline-nav button[aria-current=true]{background:#ffffff0c;border-color:transparent;border-left-color:var(--gold);color:var(--gold)}
.timeline-nav button span{font-size:.75rem;color:#9fb7c8;margin-top:2px}
.guide-note{font-size:.75rem;color:#a9c0ce;line-height:1.7;margin:16px 0 0}
.gallery-map{border:0;background:transparent;margin:0;padding:0}.gallery-map-heading h2{display:none}.gallery-map-heading{margin-bottom:10px}.gallery-map-heading p{font-size:.8125rem}
.gallery-map-grid{gap:6px}.gallery-map-grid button{min-height:76px;padding:9px 5px;text-align:center;font-size:.8125rem;word-break:normal;border-radius:5px;border-color:#ffffff20;background:#ffffff05}
.gallery-map-grid button span{font-size:.75rem;color:#9bb2c2}.gallery-map-grid button[aria-current=true]{background:#ffffff12;border-color:var(--gold);box-shadow:none}
dialog{width:min(860px,calc(100% - 40px));max-height:88dvh;border:1px solid #bacbd9;border-radius:14px;padding:0 36px 32px;background:#f5f8fc;color:#243c50;box-shadow:0 30px 100px #0007;overscroll-behavior:contain}
dialog::backdrop{background:#020d1ccc;backdrop-filter:blur(5px)}.dialog-top{background:#f5f8fc;border-color:#d5e0e9;padding:18px 0;margin-bottom:24px}.dialog-top button{min-height:44px;border-radius:6px;border-color:#b4c6d4;color:#253e51}.dialog-top .overline{color:#326c78}
dialog h2{font-size:1.8rem;letter-spacing:-1px}dialog h3{color:#1e6373;font-size:1.0625rem;margin-top:28px}dialog p,dialog li{line-height:1.9}dialog li+li{margin-top:10px}
.detail-result{border:0;border-radius:8px;background:#e0edf1;color:#1e4d61;padding:20px;font-size:1.15rem}.detail-links{border-color:#cbd9e5;gap:10px}.detail-links a{border:1px solid #b3c9d7;border-radius:6px;padding:10px 14px;color:#235168}
dialog details{border:1px solid #cedde8;border-radius:8px;padding:16px 20px}dialog summary{font-size:.9375rem}dialog pre{border-radius:6px;max-width:100%;font-size:.875rem}dialog .code-caption{color:#50677d}
.detail-meta{display:flex;flex-wrap:wrap;gap:7px;margin:0 0 22px}.detail-meta span{font-size:.8125rem;border:1px solid #c2d3df;border-radius:4px;padding:3px 9px;color:#365e73}
.detail-decisions dl{margin:20px 0 0}.detail-decisions dt{font-size:.875rem;font-weight:700;color:#276c7b;margin-top:18px}.detail-decisions dd{margin:5px 0 0}.detail-decisions dd strong{font-size:1rem}.detail-decisions dd p{margin:5px 0 0;color:#526c7e}
.detail-screens figure{margin:24px 0 0}.detail-screens img{display:block;width:100%;height:auto;border:1px solid #c7d6e2;border-radius:6px}.detail-screens figcaption{margin-top:12px}.detail-screens figcaption p{font-size:.875rem;margin-top:5px}
dialog .batch-work{--blue:#276c8a;--navy:#1d3d53;--line:#c8d8e4}dialog .batch-work details{padding:12px}dialog .batch-tx-row ol li{margin-top:0}dialog .batch-work h4{font-size:1.3rem}dialog .batch-comparison{grid-template-columns:1fr}dialog .batch-comparison p{min-height:0}
.art-status{padding:10px 16px;background:#273d4c;border:1px solid #7d9fb0;border-radius:6px;font-size:.875rem}.art-status a{text-decoration:underline}
@media(max-width:1100px){.game-shell{padding:20px 24px 0}.exhibition-layout{grid-template-columns:minmax(0,1fr) 260px;gap:16px}.exhibition-guide{padding:16px}.control-bar{align-items:flex-start}.keyboard-help{font-size:.8125rem}.shell-header,.shell-footer{padding-left:24px;padding-right:24px}}
@media(max-width:800px){
 .exhibition-layout{grid-template-columns:1fr;gap:16px}.exhibition-guide{min-height:0}.timeline-nav{grid-template-columns:repeat(3,minmax(0,1fr));gap:8px}.timeline-nav button{border:1px solid #ffffff1c;border-radius:5px;padding:10px}.timeline-nav button[aria-current=true]{border-color:var(--gold)}
 .interaction-strip{display:grid;grid-template-columns:minmax(0,1fr) auto;align-items:center;padding-bottom:16px}.action-button{max-width:220px}.gallery-map-grid button{min-height:70px;font-size:.875rem}.control-bar{flex-direction:row;align-items:center;justify-content:space-between}.guide-note{margin-top:12px}
}
@media(max-width:600px){
 .shell-header{padding:12px 18px}.shell-footer{padding:20px 18px;font-size:.8125rem;margin-top:24px}.game-shell{padding:16px 12px 0}.game-heading{margin-bottom:12px;gap:12px}.game-heading h1{font-size:1.4rem}.game-heading .overline{font-size:.6875rem;letter-spacing:.8px}.game-heading .quiet-link{font-size:.8125rem;max-width:88px;text-align:right}
 .room-tabs{gap:8px}.room-tabs button{padding:10px 6px;margin-right:10px;font-size:.9375rem}.room-tabs a{font-size:.8125rem}.room-toolbar{font-size:.8125rem;gap:10px;padding:10px 0}.room-toolbar p{max-width:220px}.motion-control{font-size:.8125rem;gap:4px;min-height:40px}.motion-control input{width:18px;height:18px}
 .viewport{height:420px;border-radius:8px}.exhibit{width:332px}.exhibit-info{min-height:178px;padding:14px 18px}.exhibit-info h2{font-size:1.375rem}.exhibit-info p{font-size:1.0625rem;line-height:1.55}.exhibit-info .overline{font-size:1rem}.exhibit-info button{font-size:1.0625rem;min-height:40px}.exhibit-info .exhibit-result{font-size:1.125rem}.npc-display{top:204px}.npc-display .pixel-sprite{width:112px;height:104px}
 .scene-corner{font-size:.75rem;bottom:9px}.control-bar{padding:12px 0 0;gap:12px;min-height:68px}.keyboard-help{display:none}.touch-help{display:block;max-width:166px;font-size:.875rem}.direction-pad{gap:7px}.direction-pad button{width:52px;height:48px}.game-page[data-scene=gallery] .direction-pad{grid-template-columns:repeat(3,48px);grid-template-rows:repeat(2,44px)}.game-page[data-scene=gallery] .direction-pad button{width:48px;height:44px}
 .gallery-exhibit .exhibit-info h2{font-size:1.125rem}.gallery-exhibit .exhibit-info .exhibit-result{font-size:1.0625rem}
 .exhibition-guide{padding:16px;border-radius:8px}.interaction-strip{grid-template-columns:1fr;gap:12px}.action-button{max-width:none;width:100%;font-size:1rem}.action-button kbd{display:none}.location-copy strong{font-size:1.125rem}.timeline-nav{gap:6px}.timeline-nav button{font-size:.875rem;padding:9px 7px}.timeline-nav button span{font-size:.75rem}.guide-note{font-size:.8125rem}
 .entry-main{padding:32px 20px 0}.entry-intro{display:block;margin-bottom:26px}.entry-intro h1{font-size:2rem;margin-bottom:16px}.entry-intro>p:last-child{font-size:1rem}.mode-top{padding:18px 20px;font-size:.75rem}.mode-tag{font-size:.8125rem}.reading-preview{margin:0 20px;padding:22px}.reading-preview,.studio-preview{height:220px}.mode-copy{padding:24px}.mode-copy h2{font-size:1.375rem}.mode-copy p{min-height:0}.mode-copy p br{display:none}.entry-footnote{font-size:.875rem;text-align:left}.entry-intro .overline{font-size:.6875rem}
 dialog{width:calc(100% - 20px);max-height:92dvh;padding:0 20px 24px;border-radius:10px}dialog h2{font-size:1.4rem}.dialog-top{padding:12px 0}dialog details{padding:14px}dialog pre{padding:14px}.detail-links a{font-size:.875rem}.detail-result{padding:16px}
}