:root{--paper:#fafafa;--ink:#303030;--muted:#737373;--red:#454545;--line:#c7c7c7}*{box-sizing:border-box}html,body{margin:0;height:100%;width:100%;background:var(--paper);color:var(--ink);font-family:'Noto Serif CJK SC','Songti SC','SimSun',serif}body{overflow:hidden}button,a,input{-webkit-tap-highlight-color:transparent}button,a{color:inherit}button{font:inherit;cursor:pointer;background:transparent;border:1px solid var(--line);padding:10px 17px;font-size:14px}button:hover{border-color:var(--red);color:var(--red)}button:focus-visible,a:focus-visible,input:focus-visible{outline:2px solid var(--red);outline-offset:5px}button:disabled{opacity:.4;cursor:default}[hidden]{display:none!important}#stage,#veil,.paper-grain{position:fixed;inset:0}#stage canvas{display:block;width:100%;height:100%;touch-action:none}.paper-grain{z-index:2;pointer-events:none;opacity:.17;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='180' height='180'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.75' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='.4'/%3E%3C/svg%3E");mix-blend-mode:multiply}#veil{pointer-events:none;z-index:30;background:var(--paper);opacity:0;transition:opacity .7s}.surface{position:fixed;inset:0;pointer-events:none;z-index:5}.surface button,.surface input{pointer-events:auto}header{position:fixed;top:0;left:0;z-index:15;width:100%;padding:23px 3.5%;display:flex;justify-content:space-between;align-items:center;border-bottom:1px solid #48484818;background:linear-gradient(var(--paper),#fafafabd,transparent)}.brand{border:0;text-align:left;padding:0;display:flex;align-items:center;gap:14px;font-size:18px;letter-spacing:2px}.brand small{display:block;font-family:Arial,sans-serif;font-size:10px;letter-spacing:1.5px;margin-top:7px;color:var(--muted)}.mark{color:var(--red);font-size:30px;border:1px solid var(--red);padding:2px 7px;display:inline-block}nav{display:flex;align-items:center;gap:20px}nav button{border:0;padding:7px;font-size:14px}.reading-link{font-size:13px;text-decoration:none;color:var(--muted)}.intro{position:absolute;left:7.5%;top:24%;max-width:46%;transition:opacity .5s}.eyebrow{font-family:Arial,sans-serif;font-size:12px;letter-spacing:2.3px;color:var(--red);font-weight:500}.intro h1{font-size:clamp(36px,4.4vw,68px);font-weight:400;line-height:1.5;letter-spacing:5px;margin:25px 0}.lead{font-size:17px;color:var(--muted);letter-spacing:2px}.catalog{display:flex;gap:34px;border-top:1px solid var(--line);margin-top:42px;padding-top:16px;font-size:13px;color:var(--muted);max-width:360px}.door-label{position:absolute;width:224px;left:72%;top:47%;text-align:left;padding:20px;background:#f7f7f7f0;border-color:#8b8b8b;box-shadow:4px 4px 0 #66666610;will-change:transform;transform:translate(-50%,-50%)}.door-label strong{display:block;font-size:22px;font-weight:400;line-height:1.6;margin:10px 0}.door-label>span{display:block;font-size:13px;color:var(--muted)}.door-label .index{font-family:monospace;color:var(--red);font-size:12px;letter-spacing:2px}.door-label .enter{color:var(--ink);border-top:1px solid var(--line);padding-top:12px;margin-top:17px;font-size:14px}.hall-foot{position:absolute;bottom:24px;left:3.5%;right:3.5%;display:flex;justify-content:space-between;font-size:12px;color:var(--muted);letter-spacing:1px}.opening .intro,.opening .door-label,.opening .hall-foot{opacity:0;pointer-events:none}.collection{position:absolute;top:126px;left:4%;pointer-events:none}.collection h2{font-weight:400;font-size:19px;letter-spacing:1px}.spatial-hint{position:absolute;top:144px;right:4%;font-size:13px;color:var(--muted)}.hotspot{position:absolute;top:0;left:0;text-align:left;width:235px;background:#fbfbfbf0;padding:17px 20px;border:1px solid #a0a0a0;box-shadow:5px 5px 0 #7c7c7c0c;transform:translate(-50%,-50%);transition:opacity .2s;will-change:transform;pointer-events:auto}.hotspot>span{font-size:12px;color:var(--red);letter-spacing:1px}.hotspot strong{font-size:21px;font-weight:400;display:block;line-height:1.6;margin:9px 0}.hotspot small{display:block;font-size:12px;color:var(--muted);margin-top:12px}.caption{position:absolute;bottom:145px;left:8%;right:8%;text-align:center;background:radial-gradient(ellipse,#fafafab0,transparent);padding:8px 15px;pointer-events:none}.caption>span{font-size:12px;color:var(--red);letter-spacing:2px}.caption p{font-size:18px;letter-spacing:1px;line-height:1.6;margin:10px 0}.caption button{border:0;border-bottom:1px solid var(--line);padding:3px 1px;font-size:12px;color:var(--muted)}.travel-controls{position:absolute;bottom:45px;left:8%;right:8%;pointer-events:auto}.timeline{display:flex;align-items:center;gap:20px;font-size:13px;color:var(--muted);background:#fafafa55;padding:10px 0}.timeline>span{white-space:nowrap}input[type=range]{width:100%;accent-color:var(--red);cursor:pointer;height:20px}.travel-actions{display:flex;justify-content:center;gap:13px}.accent{background:var(--ink);color:var(--paper);border-color:var(--ink)}.accent:hover{background:var(--red);color:white}#autoplay[aria-pressed=true]{color:var(--red);border-color:var(--red)}.fiction-foot{position:absolute;bottom:7px;width:100%;text-align:center;font-size:11px;color:var(--muted)}.review-title{position:absolute;top:123px;left:5%;width:35%}.review-title h1{font-size:clamp(30px,3.1vw,47px);font-weight:400;line-height:1.5;letter-spacing:3px;margin:20px 0}.review-title>p:last-child{font-size:14px;color:var(--muted);line-height:1.8}.review-note{position:absolute;left:5%;bottom:140px;max-width:370px}.review-note>span{font-size:12px;color:var(--red);letter-spacing:2px}.review-note blockquote{font-size:22px;line-height:1.9;margin:15px 0}.review-note>p{font-size:11px;line-height:1.8;color:var(--muted)}.review-actions{position:absolute;bottom:75px;left:5%;display:flex;gap:14px}.legend{position:absolute;bottom:28px;left:5%;right:5%;display:flex;align-items:center;gap:12px;font-size:12px;color:var(--muted)}.line-swatch{width:27px;border-top:1px solid var(--ink);display:inline-block}.line-swatch.red{border-color:var(--red);border-width:2px}.line-swatch.dash{border-color:#aaa397;border-top-style:dashed}#review-hotspots button{position:absolute;left:0;top:0;background:#fafafae8;transform:translate(-50%,-50%);padding:8px 13px;font-size:14px;border-color:transparent}#review-hotspots span{color:var(--red);font-size:12px;display:block;margin-bottom:5px}dialog{border:1px solid #858585;padding:48px;max-width:540px;width:calc(100% - 32px);background:#fbfbfb;color:var(--ink);box-shadow:8px 8px 0 #30303012;z-index:60}dialog::backdrop{background:#38383850;backdrop-filter:blur(5px)}dialog h2{font-weight:400;font-size:30px;line-height:1.5}dialog p{font-size:17px;line-height:1.9}dialog .eyebrow{font-size:12px}.close{float:right;border:0;padding:0 0 12px 12px;font-size:13px}.note-footer{border-top:1px solid var(--line);padding-top:20px;margin-top:35px;color:var(--muted);font-size:12px}#loading,#failure,.no-script{position:fixed;z-index:50;inset:0;display:flex;align-items:center;justify-content:center;flex-direction:column;background:var(--paper);padding:30px;text-align:center}#loading p{font-size:14px;letter-spacing:2px;margin-top:25px;color:var(--muted)}#failure h2{font-size:24px;font-weight:400;line-height:1.5}#failure p{font-size:16px;color:var(--muted)}#failure a{margin-top:20px;border:1px solid var(--ink);padding:12px 20px;text-decoration:none}.no-script{z-index:80}
@media(max-width:700px){header{padding:17px 5%}.brand{font-size:14px;gap:10px;letter-spacing:1px}.brand small{font-size:8px;letter-spacing:.4px}.mark{font-size:24px}nav{gap:6px}nav button{font-size:12px;padding:4px}.reading-link{display:none}.intro{top:16%;left:7%;max-width:90%}.intro h1{font-size:35px;letter-spacing:3px;margin:17px 0}.eyebrow{font-size:10px}.lead{font-size:14px;letter-spacing:1px}.catalog{margin-top:24px;gap:22px;font-size:12px}.door-label{width:210px;padding:15px}.door-label strong{font-size:20px;margin:8px 0}.door-label .enter{margin-top:12px;padding-top:10px}.hall-foot{bottom:17px;justify-content:center;font-size:11px}.hall-foot span:first-child,.hall-foot span:last-child{display:none}.collection{top:95px;left:6%}.collection h2{font-size:16px;margin-top:8px}.spatial-hint{top:158px;left:6%;font-size:12px}.hotspot{width:186px;padding:13px 15px}.hotspot strong{font-size:18px;margin:6px 0}.hotspot small{margin-top:8px}.caption{bottom:163px;left:5%;right:5%;padding:3px 8px}.caption p{font-size:15px;margin:8px 0}.caption>span{font-size:11px}.travel-controls{bottom:44px;left:6%;right:6%}.timeline{gap:12px;font-size:12px}.travel-actions{gap:7px;flex-wrap:wrap}.travel-actions button{font-size:12px;padding:9px 12px}.fiction-foot{font-size:10px;bottom:5px}.review-title{top:98px;left:7%;width:86%}.review-title h1{font-size:29px;margin:16px 0;line-height:1.5}.review-title>p:last-child{font-size:12px}.review-note{bottom:140px;left:7%;max-width:86%}.review-note blockquote{font-size:18px;line-height:1.7;margin:12px 0}.review-note>p{font-size:10px}.review-actions{left:7%;bottom:84px;gap:10px}.review-actions button{padding:9px 13px;font-size:12px}.legend{left:7%;right:7%;bottom:25px;flex-wrap:wrap;font-size:10px;gap:7px}.line-swatch{width:19px}#review-hotspots button{font-size:12px;padding:6px 8px}#review-hotspots span{font-size:10px}dialog{padding:30px}dialog h2{font-size:26px}dialog p{font-size:16px}}
@media(max-height:640px) and (min-width:701px){header{padding:15px 3.5%}.intro{top:22%}.intro h1{font-size:42px;margin:14px 0}.catalog{margin-top:24px}.collection{top:85px}.spatial-hint{top:105px}.caption{bottom:125px}.travel-controls{bottom:35px}.review-title{top:90px}.review-title h1{font-size:32px}.review-note{bottom:125px}.review-note blockquote{font-size:19px}.review-actions{bottom:65px}.legend{bottom:22px}}
@media(prefers-reduced-motion:reduce){*{transition:none!important}}
/* Handbook rooms retain the original rooms' quieter controls. */
.room-intro{position:absolute;top:88px;left:5%;right:5%;text-align:center;font-size:12px;color:#777}
.room-intro p{font-size:15px;line-height:1.7;margin:10px auto;max-width:680px}
body[data-handbook="false"] .room-intro,body:not([data-handbook]) .room-intro{display:none}
body[data-handbook="true"] #journey .travel-actions #previous,body[data-handbook="true"] #journey .travel-actions #next{display:inline-block}
#trace-labels button{position:absolute;font-size:12px;padding:5px 8px;background:#fafafae8;border:0;border-bottom:1px dashed #aaa;max-width:190px}
#review-summary{position:absolute;left:5%;bottom:105px;right:5%;font-size:12px;line-height:1.7;color:#777;max-width:650px}
body[data-handbook="true"] .review-note{bottom:175px;max-width:400px}
body[data-handbook="true"] .review-note blockquote{font-size:17px;line-height:1.7}
body[data-handbook="true"] .review-actions{bottom:65px}
body[data-handbook="true"] #review-hotspots button{max-width:175px;font-size:12px}
body[data-handbook="true"] #review-hotspots strong{font-weight:400}
dialog#note{max-height:85vh;overflow:auto;scrollbar-width:none}dialog#note::-webkit-scrollbar{display:none}#note-body,#record-full{white-space:pre-line}
#record-section{border-top:1px solid #ccc;margin-top:24px;padding-top:8px}#record-section h3{font-size:16px;font-weight:400}#record-full{font-size:16px}#note-object{color:#777;font-size:13px}
@media(max-width:700px){.room-intro{top:65px}.room-intro p{font-size:13px}body[data-handbook="true"] .review-title{top:58px}body[data-handbook="true"] .review-note{bottom:195px;max-width:86%}body[data-handbook="true"] .review-note blockquote{font-size:14px}#review-summary{bottom:115px;font-size:11px}body[data-handbook="true"] #review-hotspots button{max-width:120px;font-size:11px}#trace-labels button{max-width:115px;font-size:10px}body[data-handbook="true"] .travel-actions{gap:8px}}
/* Text is drawn on the physical door plaque; this button is its keyboard target. */
#hall .door-label,#hall .door-label:hover{padding:0;background:transparent;border:0;box-shadow:none;color:transparent}
#hall .door-label span,#hall .door-label strong{color:transparent;pointer-events:none}
#hall .door-label:focus-visible{outline:2px solid #555;outline-offset:3px}
#journey .hotspot{width:auto;max-width:190px;padding:7px 10px;border:0;border-bottom:1px solid #b5b5b5;background:#fafafac7;box-shadow:none}
#journey .hotspot strong,#journey .hotspot small{display:none}
#journey .hotspot>span{font-size:13px;white-space:nowrap;color:#555;letter-spacing:0}
/* Quiet monochrome gallery: the hallway contains only doors and signs. */
body[data-mode=hall] header,body[data-mode=opening] header{display:none}
.paper-grain{opacity:.035}
header{padding:20px 3%;border:0;background:none;pointer-events:none;justify-content:flex-end}
header .brand,header .reading-link{display:none}
header nav{gap:12px;pointer-events:auto}
header nav button{font-size:13px;border:1px solid #c7c7c7;background:#fafafae8;padding:8px 12px}
.door-label{width:232px;background:#fafafaf2;border:1px solid #929292;padding:13px 15px;text-align:center;box-shadow:none}
.door-label .index{font-family:monospace;color:#777;font-size:12px;letter-spacing:2px;margin:0}
.door-label strong{font-size:19px;letter-spacing:1px;line-height:1.5;margin:6px 0 0}
.door-label:hover{border-color:#444;background:#fff}
.hotspot{box-shadow:none;border-color:#bababa;background:#fafafae8;width:215px;padding:14px 17px}
.hotspot strong{font-size:19px;line-height:1.6}
.hotspot small{display:none}
.caption{bottom:108px;background:none}
.caption p{font-size:16px;color:#535353;margin:8px 0}
.caption>span{color:#777;font-size:12px}
.caption button{font-size:12px;padding:1px 0}
.travel-controls{bottom:24px;left:18%;right:18%}
.travel-actions{position:absolute;right:0;bottom:44px}
.travel-actions #previous,.travel-actions #next,.travel-actions #autoplay{display:none}
.travel-actions #overview{font-size:13px;padding:8px 12px;background:#fafafae8;color:#444;border-color:#aaa}
.timeline{background:none;padding:8px 0}
.fiction-foot,.legend{display:none}
.review-title{top:105px;left:5%;width:auto}
.review-title h1{font-size:21px;letter-spacing:2px;margin:0;font-weight:400}
.review-note{bottom:122px;max-width:320px}
.review-note blockquote{font-size:18px;line-height:1.8}
.review-note>p{font-size:11px;color:#777}
.review-actions{bottom:60px}
.review-actions button{font-size:13px;padding:9px 13px;background:#fafafae8;color:#444;border-color:#aaa}
#review-hotspots button{background:#fafafadb}
dialog{box-shadow:none;background:#fbfbfb;border-color:#a5a5a5}
#loading .mark{display:none}
#loading p{letter-spacing:1px;color:#999}
@media(max-width:700px){header{padding:17px 5%}header nav{gap:8px}header nav button{font-size:12px;padding:7px 10px}.door-label{width:210px;padding:11px 12px}.door-label strong{font-size:17px}.door-label .index{font-size:11px}.hotspot{width:177px;padding:11px 13px}.hotspot strong{font-size:17px}.caption{bottom:112px;padding:0 10px}.caption p{font-size:14px}.travel-controls{bottom:25px;left:7%;right:7%}.travel-actions{bottom:41px}.travel-actions #overview{font-size:12px;padding:7px 10px}.review-title{top:92px;left:7%;width:auto}.review-title h1{font-size:18px}.review-note{bottom:120px;left:7%;max-width:86%}.review-note blockquote{font-size:16px}.review-actions{bottom:53px;left:7%}.review-actions button{font-size:12px;padding:8px 12px}}

dialog .credits{font-size:12px;color:#777;line-height:1.8}

.review-note blockquote{white-space:pre-line}

body[data-mode=hall] .paper-grain,body[data-mode=opening] .paper-grain{display:none}
body[data-mode=journey] #about,body[data-mode=review] #about{display:none}
.art-label{position:absolute;padding:0;border:0;background:transparent;color:transparent;font-size:0;transform:translate(-50%,-50%);box-shadow:none}
.art-label:hover{color:transparent}
.art-label:focus-visible{outline:2px solid #555;outline-offset:4px}
#art{width:min(92vw,1100px);max-width:1100px;max-height:92vh;padding:54px 22px 22px;overflow:auto;perspective:1400px;background:transparent;border:0;box-shadow:none}
#art::backdrop{background:transparent;backdrop-filter:none}
#art>.close{position:absolute;right:18px;top:14px;z-index:2;margin:0}
#art-view{position:relative;margin:0 auto;width:min(100%,93.18vh);aspect-ratio:2.2/1.7;transition:transform .18s ease-out;transform-origin:center}
#art-view img{position:absolute;display:block;border:0;padding:0;user-select:none;-webkit-user-drag:none}
#art-view .art-content{left:9.565%;top:11.812%;width:80.87%;height:76.376%;object-fit:fill}
#art-view .art-frame{inset:0;width:100%;height:100%;pointer-events:none}
#art-frame-wood{mask-image:linear-gradient(transparent,transparent)}
#art-view figcaption{display:none}
@media(prefers-reduced-motion:reduce){#art-view{transition:none}#art[open] #art-view{animation:none}}

body[data-handbook="true"] #legend{display:flex}

#review-leaders i{position:absolute;height:1px;background:#d4d4d4;transform-origin:0 50%;pointer-events:none}body[data-handbook="true"] #review-hotspots button{max-width:150px}#trace-labels button{max-width:150px}@media(max-width:700px){body[data-handbook="true"] #review-hotspots button,#trace-labels button{max-width:115px}}

.room-nodes{position:absolute;left:5%;right:auto;top:20px;z-index:8;width:min(300px,70vw);background:#fafafae8;padding:10px;border:1px solid #aaa}.room-nodes summary{cursor:pointer}.room-nodes #node-list{max-height:40vh;overflow:auto;display:grid;gap:5px}.room-nodes button{text-align:left;padding:8px;font-size:13px}.segment-actions{display:flex;gap:8px;justify-content:center;flex-wrap:wrap}.segment-actions select{font:inherit;max-width:200px;background:#fafafa;padding:7px;border:1px solid #aaa}#transition-status{text-align:center;font-size:12px;margin:4px}#record-full{white-space:pre-wrap}@media(max-width:700px){.room-nodes{top:17px;width:200px}.travel-controls{max-width:95vw}.segment-actions button{font-size:12px;padding:6px}.room-intro p{max-width:58vw}}

.room-nodes,.room-nodes summary,.segment-actions select{pointer-events:auto}body[data-handbook="true"] #autoplay{display:inline-block}body[data-handbook="true"] .caption{bottom:190px}body[data-handbook="true"] .travel-actions #previous,body[data-handbook="true"] .travel-actions #next{display:inline-block}

body[data-handbook="true"] .travel-actions{position:static;display:flex;flex-wrap:wrap;justify-content:center}body[data-handbook="true"] .travel-controls{bottom:24px}body[data-handbook="true"] .legend{display:block;bottom:18px;line-height:1.6}body[data-handbook="true"] .caption{bottom:205px}body[data-handbook="true"] .room-intro{max-width:65%;left:5%;text-align:left}.room-intro p{max-width:650px}@media(max-width:700px){body[data-handbook="true"] .room-intro{max-width:90%;top:70px}.room-nodes{top:17px}body[data-handbook="true"] .travel-actions button{padding:6px 9px;font-size:12px}body[data-handbook="true"] .caption{bottom:215px}.room-nodes #node-list{max-height:30vh}}

/* 004 keeps the sky visible behind every interface panel. */
body[data-environment="004"]{--paper:#020512;--ink:#e5edf8;--muted:#b5c2d5;--red:#d4e3f6;--line:#b5c2d54d}
body[data-environment="004"] .paper-grain{display:none}
body[data-environment="004"] .caption,body[data-environment="004"] .room-intro,body[data-environment="004"] .travel-controls,body[data-environment="004"] .review-title,body[data-environment="004"] .review-note,body[data-environment="004"] #review-summary,body[data-environment="004"] .legend,body[data-environment="004"] header,body[data-environment="004"] .room-nodes,body[data-environment="004"] .room-nodes button,body[data-environment="004"] #journey .hotspot,body[data-environment="004"] #review-hotspots button,body[data-environment="004"] #trace-labels button,body[data-environment="004"] #star-reflection,body[data-environment="004"] #note{background:transparent;border-color:transparent;box-shadow:none;color:#e5edf8}
body[data-environment="004"] .room-intro,body[data-environment="004"] .review-title,body[data-environment="004"] .room-nodes,body[data-environment="004"] #journey .hotspot,body[data-environment="004"] #review-hotspots,body[data-environment="004"] #trace-labels,body[data-environment="004"] #star-reflection{text-shadow:0 1px 3px #020512}
body[data-environment="004"] #journey .hotspot>span,body[data-environment="004"] #review-hotspots span,body[data-environment="004"] .fiction-foot,body[data-environment="004"] #note-object{color:#c6d4e8}
body[data-environment="004"] header nav button,body[data-environment="004"] .travel-actions button,body[data-environment="004"] .review-actions button,body[data-environment="004"] .segment-actions button,body[data-environment="004"] #note button{background:transparent;color:#e5edf8;border-color:#b5c2d54d}
body[data-environment="004"] button:hover{color:#fff;border-color:#d4e3f6}
body[data-environment="004"] #opening-copy{white-space:pre-line}
body[data-environment="004"] #note::backdrop{background:#00091ec4;backdrop-filter:blur(3px)}
body[data-environment="004"] .travel-controls{width:min(280px,calc(100% - 24px));left:50%;right:auto;transform:translateX(-50%);bottom:14px;padding:0}
body[data-environment="004"] .timeline{background:transparent;padding:0;gap:7px;font-size:9px;line-height:16px}
body[data-environment="004"] .timeline input{height:14px;min-width:0;accent-color:#d4e3f6}
body[data-environment="004"] .travel-actions{gap:4px}
body[data-environment="004"] .travel-actions button{padding:4px 6px;font-size:11px;line-height:18px}
body[data-environment="004"] #transition-status:empty{display:none}
body[data-environment="004"] .review-note,body[data-environment="004"] #review-summary,body[data-environment="004"] .legend{display:none!important}
#star-reflection{position:absolute;bottom:70px;left:5%;width:min(520px,90%);max-height:45vh;overflow:auto;padding:9px 0;font-size:12px;line-height:1.6;pointer-events:auto;z-index:9}
#star-reflection summary{cursor:pointer}
#star-reflection blockquote{font-size:14px;line-height:1.8;margin:12px 0}
#star-reflection p{margin:10px 0}
body[data-environment="004"] .review-actions{bottom:22px}
@media(max-width:700px){#star-reflection{font-size:11px}body[data-environment="004"] #journey .hotspot{width:155px;padding:7px 8px}body[data-environment="004"] #journey .hotspot>span{white-space:normal;font-size:12px}}

body[data-environment="004"] #overview{background:transparent;color:#e5edf8;border-color:#b5c2d54d;padding:4px 6px;font-size:11px;line-height:18px}
body[data-environment="004"] #journey .hotspot>span{text-shadow:1px 0 #020512,-1px 0 #020512,0 1px #020512,0 -1px #020512}

/* Original museum guide; no upstream personal artwork. */
body[data-mode=hall] header{display:flex}
body[data-mode=hall] header #about{display:none}
#museum-map{width:min(740px,92vw);max-width:740px;max-height:86dvh;overflow:auto;padding:32px;color:#454545;background:#fbfbfb}
#museum-map .close{float:right;font-size:13px}
#museum-map h2{margin:12px 0;font-size:28px}
#museum-map .map-hint{font-size:14px;color:#777;margin-bottom:24px}
.map-rooms{position:relative;display:grid;grid-template-columns:1fr 1fr;gap:8px 50px;padding:8px 0 20px}
.map-rooms::before{content:'';position:absolute;top:0;bottom:0;left:50%;border-left:2px dashed #aaa;transform:rotate(.3deg);pointer-events:none}
.map-room{position:relative;display:flex;align-items:center;gap:12px;min-height:65px;padding:9px 12px;border:1px solid transparent;text-align:left;white-space:normal;background:transparent;color:#454545}
.map-room.left{grid-column:1}.map-room.right{grid-column:2}
.map-room::after{content:'';position:absolute;top:50%;width:25px;border-top:1px solid #aaa;right:-26px}.map-room.right::after{left:-26px;right:auto}
.map-room svg{width:36px;height:48px;flex-shrink:0;fill:none;stroke:currentColor;stroke-width:1.4;stroke-linecap:round;stroke-linejoin:round}
.map-room span{display:grid;gap:5px}.map-room small{font:11px monospace;letter-spacing:1px}.map-room strong{font-size:14px;font-weight:400;line-height:1.5}
.map-room:hover,.map-room:focus-visible{border-color:#aaa;background:#f1eee8}.map-room[aria-current=true]{border-color:#6d6250;background:#eee8dc;color:#51432f}
.sr-status{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip-path:inset(50%);white-space:nowrap}
#navigation-status[data-error=true]{position:fixed;left:50%;top:75px;transform:translateX(-50%);width:max-content;max-width:calc(100% - 32px);height:auto;padding:10px 14px;margin:0;clip-path:none;white-space:normal;color:#454545;background:#fbfbfb;border:1px solid #aaa;font-size:13px;z-index:60}
#art-frame-wood{mask-size:100% 100%;mask-repeat:no-repeat;-webkit-mask-size:100% 100%;-webkit-mask-repeat:no-repeat}
#paper-transition{position:fixed;inset:0;z-index:100;overflow:hidden;background:transparent;pointer-events:auto}
#paper-transition[hidden]{display:none}.paper-half{position:absolute;inset:0;background:#faf9f5;background-image:repeating-linear-gradient(93deg,transparent,transparent 8px,#80765d05 9px);will-change:transform}
.paper-left{clip-path:polygon(0 0,50% 0,49% 8%,51% 17%,48.5% 25%,51.5% 33%,49% 42%,50.5% 50%,48.5% 58%,51% 67%,49% 75%,51% 83%,49.5% 92%,50% 100%,0 100%)}
.paper-right{clip-path:polygon(100% 0,50% 0,49% 8%,51% 17%,48.5% 25%,51.5% 33%,49% 42%,50.5% 50%,48.5% 58%,51% 67%,49% 75%,51% 83%,49.5% 92%,50% 100%,100% 100%)}
@media(max-width:700px){#museum-map{padding:22px 16px}.map-rooms{gap:7px 28px}.map-room{padding:6px;gap:6px}.map-room strong{font-size:12px}.map-room small{font-size:10px}.map-room svg{width:25px;height:37px}.map-room::after{width:14px;right:-15px}.map-room.right::after{left:-15px}}
@media(max-width:700px){.room-nodes{top:62px;width:min(260px,90vw)}body[data-handbook="true"] .room-intro{top:110px}#journey:has(.room-nodes[open]) .room-intro,#journey:has(.room-nodes[open]) #hotspots{visibility:hidden}}
/* Opaque reading surface is local to the realistic space exhibit. */
body[data-environment="004"] #note{background:#0b1324f5;border:1px solid #7187a755;border-radius:12px;color:#e5edf8;max-height:calc(100dvh - 32px);overflow:auto;text-shadow:none}
body[data-environment="004"] #journey .hotspot{background:#080f20b8;border:1px solid #8197b840;border-radius:8px}
body[data-environment="004"] #journey .hotspot:hover,body[data-environment="004"] #journey .hotspot:focus-visible{background:#14233bea;border-color:#c7d8f3;outline:2px solid #9cbce4}
body[data-environment="004"] #journey .hotspot:hover strong,body[data-environment="004"] #journey .hotspot:focus-visible strong,body[data-environment="004"] #journey .hotspot.is-planet-hovered strong{display:block;font-size:14px;margin:4px 0}

#art{touch-action:manipulation}