:root{
  --paper:#f4f0e8;
  --paper2:#ebe4d7;
  --panel:#fffdf9;
  --white:#fff;
  --ink:#171b20;
  --muted:#686f75;
  --line:#d7cfc1;
  --gold:#9a7a48;
  --gold-soft:#c7b187;
  --max:760px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  background:#e9e4db;
  color:var(--ink);
  font-family:Georgia,"Noto Serif KR","Apple SD Gothic Neo","Malgun Gothic",serif;
  line-height:1.7;
  -webkit-text-size-adjust:100%;
}
body.no-scroll{overflow:hidden}
button,a{font:inherit}
a{color:inherit}
.page{max-width:var(--max);margin:auto;background:var(--paper);min-height:100vh;box-shadow:0 0 0 1px rgba(0,0,0,.02)}

.topbar{min-height:54px;display:flex;justify-content:space-between;align-items:center;gap:16px;padding:12px 18px;border-bottom:1px solid rgba(23,27,32,.12)}
.topbar strong{font:700 26px/1.15 Georgia,serif;letter-spacing:-.015em}
.language-switch{display:flex;align-items:center;gap:6px;font:700 14px/1 "Apple SD Gothic Neo","Malgun Gothic",sans-serif;color:var(--muted)}
.lang-btn{min-width:36px;min-height:36px;border:0;background:transparent;color:var(--muted);cursor:pointer;border-radius:18px;padding:0 7px}
.lang-btn.active{color:var(--ink);background:rgba(255,255,255,.65);box-shadow:inset 0 0 0 1px var(--line)}

.hero{padding:38px 18px 28px}
.kicker{margin:0 0 10px;color:var(--gold);letter-spacing:.14em;text-transform:uppercase;font:700 14px/1.5 "Apple SD Gothic Neo","Malgun Gothic",sans-serif}
.hero h1{margin:0;font-size:clamp(40px,7vw,48px);line-height:1.02;font-weight:500;letter-spacing:-.035em}
.hero .maker{margin:10px 0 0;font-size:17px;line-height:1.45}
.intro{margin-top:25px;padding:22px;background:var(--panel);border:1px solid var(--line)}
.intro h2{margin:0 0 12px;font-size:22px;line-height:1.35;font-weight:500}
.intro p{margin:0;color:#474f56;font:16px/1.85 "Apple SD Gothic Neo","Malgun Gothic",sans-serif}
.quick{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:8px;margin-top:18px}
.quick-link{min-height:58px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:5px;text-decoration:none;background:#faf7f1;border:1px solid var(--line);padding:8px 5px;text-align:center;color:var(--ink);font:700 14px/1.2 "Apple SD Gothic Neo","Malgun Gothic",sans-serif}
.quick-icon{width:20px;height:20px;fill:none;stroke:var(--gold);stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round}
.quick-dollar{height:20px;color:var(--gold);font:700 20px/20px Georgia,serif}
.scrollcue{padding:22px 0 0;color:var(--gold);font:700 14px/1.5 "Apple SD Gothic Neo","Malgun Gothic",sans-serif}

.section{padding:58px 18px;border-top:1px solid var(--line)}
.section-no{display:block;color:var(--gold);font:700 14px/1.45 "Apple SD Gothic Neo","Malgun Gothic",sans-serif;letter-spacing:.11em}
.section h2{margin:8px 0 10px;font-size:34px;line-height:1.12;font-weight:500}
.section .lead{margin:0 0 26px;color:var(--muted);font:15.5px/1.8 "Apple SD Gothic Neo","Malgun Gothic",sans-serif}

.museum-viewer{background:var(--white);border:1px solid var(--line)}
.main-photo-button{display:block;width:100%;border:0;padding:0;background:#fff;cursor:zoom-in}
.main-photo-button img{display:block;width:100%;height:min(74vh,760px);min-height:440px;object-fit:contain;background:#fff}
.filmstrip-wrap{padding:12px 10px 10px;background:#fbfaf7}
.filmstrip{display:flex;gap:10px;overflow-x:auto;padding:0 0 5px;scroll-snap-type:x proximity;-webkit-overflow-scrolling:touch;scrollbar-width:thin}
.thumb{flex:0 0 94px;height:112px;padding:4px;border:1px solid transparent;background:#fff;cursor:pointer;scroll-snap-align:start;position:relative}
.thumb img{display:block;width:100%;height:100%;object-fit:contain;background:#fff}
.thumb.active{border-color:var(--gold);box-shadow:0 3px 0 var(--gold)}
.thumb:focus-visible{outline:2px solid var(--gold);outline-offset:2px}

.object-record{margin-top:44px;border-top:1px solid var(--line)}
.record-heading{padding:30px 0 18px}
.record-eyebrow{display:block;color:var(--gold);font:700 13px/1.4 "Apple SD Gothic Neo","Malgun Gothic",sans-serif;letter-spacing:.12em}
.record-heading h3{margin:7px 0 0;font-size:36px;line-height:1.05;font-weight:500}
.identity-grid{margin:0 0 6px;padding:0;border-top:1px solid var(--line)}
.identity-grid>div{display:grid;grid-template-columns:128px 1fr;gap:14px;padding:13px 0;border-bottom:1px solid var(--line)}
.identity-grid dt{font:700 13px/1.5 "Apple SD Gothic Neo","Malgun Gothic",sans-serif;letter-spacing:.06em;color:#3f464c;text-transform:uppercase}
.identity-grid dd{margin:0;font:18px/1.45 Georgia,"Noto Serif KR",serif}
.record-accordions details{border-bottom:1px solid var(--line)}
.record-accordions summary{list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:68px;padding:14px 0;font-size:23px;line-height:1.25}
.record-accordions summary::-webkit-details-marker{display:none}
.record-accordions summary::after{content:"⌄";font:400 26px/1 sans-serif;transform:translateY(-2px);transition:transform .15s ease;color:#4a5055}
.record-accordions details[open] summary::after{transform:rotate(180deg) translateY(2px)}
.record-copy{padding:0 0 22px;color:#3f464c;font:16px/1.85 "Apple SD Gothic Neo","Malgun Gothic",sans-serif}
.measurement-list{margin:0;padding:0;display:grid;grid-template-columns:1fr 1fr;column-gap:24px}
.measurement-list>div{display:flex;justify-content:space-between;gap:12px;padding:8px 0;border-bottom:1px dotted #ddd4c5}
.measurement-list dt{color:#52595f}
.measurement-list dd{margin:0;font-weight:700;color:var(--ink)}
.fact-list{margin:0;padding:0}
.fact-list>div{display:grid;grid-template-columns:132px 1fr;gap:14px;padding:6px 0}
.fact-list dt{font-weight:700;color:#2f353a}
.fact-list dd{margin:0;color:#454c52}
.record-list{margin:0;padding:0;list-style:none}
.record-list li{position:relative;padding:7px 0 7px 18px;border-bottom:1px dotted #ddd4c5}
.record-list li:last-child{border-bottom:0}
.record-list li::before{content:"•";position:absolute;left:2px;top:7px;color:var(--gold);font-weight:700}

.recording-spec{margin:0 0 26px;padding:0 15px;background:var(--panel);border:1px solid var(--line)}
.recording-spec>div{display:grid;grid-template-columns:126px minmax(0,1fr);gap:14px;align-items:baseline;padding:11px 0;border-bottom:1px solid var(--line)}
.recording-spec>div:last-child{border-bottom:0}
.recording-spec dt{font:700 13.5px/1.45 "Apple SD Gothic Neo","Malgun Gothic",sans-serif;letter-spacing:.045em;color:var(--gold)}
.recording-spec dd{margin:0;font:600 15.5px/1.5 "Apple SD Gothic Neo","Malgun Gothic",sans-serif;color:#343b41}

.audio-list{border-top:1px solid var(--line)}
.audio-track{position:relative;border-bottom:1px solid var(--line);padding:0 0 12px}
.audio-toggle{width:100%;min-height:76px;display:grid;grid-template-columns:46px minmax(0,1fr) auto;gap:13px;align-items:center;text-align:left;background:none;color:var(--ink);border:0;padding:14px 0 10px;cursor:pointer}
.audio-toggle:focus-visible{outline:2px solid var(--gold);outline-offset:3px}
.play{width:40px;height:40px;border-radius:50%;border:1px solid var(--line);display:grid;place-items:center;font-size:13px;background:var(--panel);color:var(--ink);transition:background .15s ease,border-color .15s ease,color .15s ease}
.audio-track.is-playing .play{background:var(--gold);border-color:var(--gold);color:#fff}
.audio-copy{display:flex;min-width:0;flex-direction:column;gap:4px}
.audio-copy strong{overflow:visible;text-overflow:clip;white-space:normal;font-size:18px;line-height:1.35;font-weight:600}
.audio-meta{font:14px/1.35 "Apple SD Gothic Neo","Malgun Gothic",sans-serif;color:var(--muted)}
.audio-time{white-space:nowrap;font:600 13px/1.35 ui-monospace,SFMono-Regular,Consolas,monospace;color:var(--muted)}
.audio-seek{display:block;width:calc(100% - 59px);height:22px;margin:0 0 0 59px;accent-color:var(--gold);cursor:pointer}
.audio-track.has-error::after{content:"Audio unavailable";display:block;margin-left:59px;color:#9a2e24;font:13px/1.4 "Apple SD Gothic Neo","Malgun Gothic",sans-serif}

.market-intro{margin:16px 0 24px;padding:16px 17px;border-left:3px solid var(--gold);background:var(--panel);font:15px/1.8 "Apple SD Gothic Neo","Malgun Gothic",sans-serif;color:#515960}
.market-list{display:grid;gap:14px}
.market-card{display:block;overflow:hidden;background:var(--panel);border:1px solid var(--line);text-decoration:none;transition:transform .15s ease,box-shadow .15s ease}
.market-card:active{transform:scale(.995)}
.market-logo{width:100%;min-height:122px;padding:18px;background:#fff;border-bottom:1px solid var(--line);display:flex;align-items:center;justify-content:center}
.market-logo img{display:block;width:100%;max-width:430px;max-height:88px;object-fit:contain}
.market-logo-shimokura{background:#d9c9a9}.market-logo-shimokura img{max-height:82px}
.market-copy{padding:16px 17px 17px}
.market-card .type{color:var(--gold);font:700 15.5px/1.45 "Apple SD Gothic Neo","Malgun Gothic",sans-serif;letter-spacing:.05em}
.market-card h3{margin:7px 0 5px;font-size:24px;line-height:1.28;font-weight:500}
.market-card p{margin:11px 0 0;color:#434b52;font:700 16px/1.45 "Apple SD Gothic Neo","Malgun Gothic",sans-serif}
.disclaimer{margin-top:19px;color:var(--muted);font:14px/1.75 "Apple SD Gothic Neo","Malgun Gothic",sans-serif}
.footer{padding:24px 18px 36px;border-top:1px solid var(--line);color:var(--muted);font-family:"Apple SD Gothic Neo","Malgun Gothic",sans-serif}
.footer-rights{max-width:720px}
.footer-copyright{margin:0 0 7px;color:var(--ink);font-size:13.5px;font-weight:700;line-height:1.5}
.footer-note{margin:0;max-width:680px;font-size:12.5px;line-height:1.75;color:var(--muted)}

#lightbox{display:none;position:fixed;z-index:1000;inset:0;background:#fff;grid-template-rows:58px minmax(0,1fr) 48px 130px;touch-action:pan-y}
#lightbox.open{display:grid}
.lb-topbar{display:flex;align-items:center;justify-content:space-between;padding:8px 14px;border-bottom:1px solid #e4e4e4}
.lb-topbar strong{font:500 17px/1.25 Georgia,serif}
.lb-close{width:44px;height:44px;border:0;background:#fff;color:#111;font:300 34px/1 sans-serif;cursor:pointer}
.lb-stage{position:relative;display:flex;align-items:center;justify-content:center;min-height:0;padding:8px 48px;background:#fff}
.lb-stage img{display:block;max-width:100%;max-height:100%;object-fit:contain;background:#fff;user-select:none;-webkit-user-drag:none}
.lb-nav{position:absolute;top:50%;transform:translateY(-50%);width:42px;height:58px;border:1px solid var(--line);background:rgba(255,255,255,.94);color:#222;font:300 32px/1 sans-serif;cursor:pointer;border-radius:21px}
.lb-prev{left:6px}.lb-next{right:6px}
.lb-filmstrip{display:flex;gap:10px;overflow-x:auto;padding:10px 12px 14px;background:#fafafa;-webkit-overflow-scrolling:touch;scrollbar-width:thin}
.lb-thumb{flex:0 0 88px;height:102px;border:1px solid transparent;background:#fff;padding:3px;cursor:pointer}
.lb-thumb img{display:block;width:100%;height:100%;object-fit:contain;background:#fff}
.lb-thumb.active{border-color:var(--gold);box-shadow:0 3px 0 var(--gold)}

@media(max-width:520px){
  .page{box-shadow:none}
  .topbar{padding:11px 16px}.topbar strong{font-size:23px;font-weight:700}
  .hero{padding:34px 16px 26px}.hero h1{font-size:clamp(38px,10.5vw,44px)}.hero .maker{font-size:16px}
  .intro{padding:18px}.intro h2{font-size:20px}.intro p{font-size:15.5px}
  .quick{grid-template-columns:repeat(3,minmax(0,1fr));gap:6px}
  .quick-link{min-height:60px;padding:7px 3px;font-size:13px;letter-spacing:-.02em}
  .quick-icon{width:19px;height:19px}.quick-dollar{font-size:19px}
  .section{padding:52px 16px}.section h2{font-size:31px}.section .lead{font-size:15.5px}
  .main-photo-button img{height:62vh;min-height:390px}
  .thumb{flex-basis:80px;height:98px}
  .filmstrip{gap:8px}
  .record-heading h3{font-size:34px}
  .identity-grid>div{grid-template-columns:108px 1fr}.identity-grid dt{font-size:12.5px}.identity-grid dd{font-size:17px}
  .record-accordions summary{font-size:22px;min-height:64px}.record-copy{font-size:15.5px}
  .measurement-list{grid-template-columns:1fr}
  .market-card h3{font-size:23px}.market-card p{font-size:16px}
  #lightbox{grid-template-rows:58px minmax(0,1fr) 46px 118px}
  .lb-stage{padding:6px 38px}.lb-nav{width:36px;height:52px;border-radius:18px}.lb-prev{left:2px}.lb-next{right:2px}
  .lb-filmstrip{gap:8px;padding:8px 10px 12px}.lb-thumb{flex-basis:76px;height:92px}
}

@media(max-width:370px){
  .quick-link{font-size:12px}
  .quick-icon{width:18px;height:18px}
  .identity-grid>div{grid-template-columns:96px 1fr}
}

/* v0.6.1 museum-record refinements */
.label-transcription{margin-top:0;padding:15px 16px;background:#fbfaf7;border:1px solid var(--line);font:600 15px/1.7 Georgia,"Noto Serif KR",serif;letter-spacing:.015em;color:#2f3438}
.record-copy p{margin:0 0 12px}.record-copy p:last-child{margin-bottom:0}
.dendro-record p{color:#2d3338;font-size:16px}
@media(max-width:520px){
  .label-transcription{font-size:14px;line-height:1.75;padding:14px}
  .fact-list>div{grid-template-columns:108px 1fr;gap:10px}
}


/* v0.6.2 eArchive / Instrument Photography refinements */
.section-title-row{display:flex;align-items:baseline;justify-content:space-between;gap:16px;flex-wrap:wrap;margin-bottom:14px}
.section-title-row .section-no{margin:0}
.viewer-hint{color:var(--muted);font:600 12.5px/1.4 "Apple SD Gothic Neo","Malgun Gothic",sans-serif;letter-spacing:.035em;white-space:nowrap}
#photography .museum-viewer{margin-top:0}
#photography .object-record{margin-top:34px}
#photography .record-heading{padding:26px 0 18px}
#photography .record-heading h3{margin:0}
#lightbox{grid-template-rows:58px minmax(0,1fr) 130px}
.lb-stage{overflow:hidden;touch-action:none}
.lb-stage img{transform-origin:center center;will-change:transform;transition:transform .05s linear;cursor:zoom-in}
.lb-stage img.is-zoomed{cursor:grab}
.lb-stage img.is-zoomed:active{cursor:grabbing}
@media(max-width:520px){
  .section-title-row{gap:8px;margin-bottom:12px}
  .viewer-hint{font-size:11.5px;letter-spacing:0}
  #lightbox{grid-template-rows:58px minmax(0,1fr) 118px}
}


/* v0.6.3 compact archival facts in hero */
.archive-facts{margin-top:24px;border-top:1px solid var(--line);border-bottom:1px solid var(--line);padding:10px 0}
.archive-fact{display:grid;grid-template-columns:minmax(122px,0.24fr) minmax(0,1fr);gap:18px;padding:10px 0;border-bottom:1px dotted #ddd4c5}
.archive-fact:last-child{border-bottom:0}
.archive-fact-label{color:#343a40;font:700 13px/1.55 "Apple SD Gothic Neo","Malgun Gothic",sans-serif;letter-spacing:.035em;text-transform:none}
.archive-fact-value{color:#42484e;font:15px/1.68 "Apple SD Gothic Neo","Malgun Gothic",sans-serif}
.archive-fact-value em{font-style:italic;color:#34393e}
@media(max-width:640px){
  .archive-facts{margin-top:20px}
  .archive-fact{grid-template-columns:1fr;gap:3px;padding:9px 0}
  .archive-fact-label{font-size:12.5px}
  .archive-fact-value{font-size:14.5px;line-height:1.62}
}


/* v0.6.4 mobile entry: simplified hero + readable mobile typography */
.topbar{min-height:58px;padding:12px 18px}
.topbar strong{font-size:30px;font-weight:700;letter-spacing:-.02em}
.hero{padding:32px 18px 24px}
.hero h1{font-size:clamp(44px,7.4vw,52px);line-height:1.01}
.hero .maker{margin-top:12px;font-size:20px;line-height:1.4}
.quick{grid-template-columns:repeat(3,minmax(0,1fr));gap:8px;margin-top:24px}
.quick-link{min-height:66px;gap:6px;padding:8px 5px;font-size:15px;line-height:1.15;letter-spacing:-.015em}
.quick-symbol{display:block;min-height:23px;font:400 21px/23px "Apple Color Emoji","Segoe UI Emoji","Noto Color Emoji",sans-serif;color:var(--gold)}
.quick-dollar{font-family:Georgia,serif;font-size:22px;font-weight:700}
#sound{padding-top:38px}
.section-no{font-size:15px}
.section .lead{font-size:16px}
.audio-slot strong{font-size:18px}
.audio-slot .state{font-size:15px}
.viewer-hint{font-size:13px}
.market-intro{font-size:16px}
.disclaimer{font-size:15px}

@media(max-width:520px){
  .topbar{min-height:58px;padding:10px 16px}
  .topbar strong{font-size:28px;font-weight:700}
  .language-switch{font-size:15px}
  .hero{padding:27px 16px 20px}
  .hero h1{font-size:clamp(42px,11.5vw,48px);line-height:1.01}
  .hero .maker{margin-top:12px;font-size:20px;line-height:1.35}
  .quick{gap:7px;margin-top:22px}
  .quick-link{min-height:66px;padding:8px 4px;font-size:14.5px;line-height:1.12}
  .quick-symbol{min-height:24px;font-size:21px;line-height:24px}
  .quick-dollar{font-size:22px}
  .section{padding:50px 16px}
  #sound{padding-top:34px}
  .section-no{font-size:15px;letter-spacing:.085em}
  .section h2{font-size:34px;line-height:1.1}
  .section .lead{font-size:17px;line-height:1.75;margin-bottom:24px}
  .audio-toggle{min-height:76px;grid-template-columns:46px minmax(0,1fr) auto;gap:11px;padding:14px 0 9px}
  .play{width:42px;height:42px}
  .audio-copy strong{font-size:18px}
  .audio-meta{font-size:15px}
  .audio-time{font-size:12.5px}
  .audio-seek{width:calc(100% - 57px);margin-left:57px}
  .viewer-hint{font-size:13.5px;line-height:1.4}
  .market-intro{font-size:16px;line-height:1.75}
  .market-card .type{font-size:16px}
  .market-card h3{font-size:24px}
  .market-card p{font-size:17px}
  .disclaimer{font-size:15px;line-height:1.7}
  .footer-copyright{font-size:14px}
  .footer-note{font-size:13px;line-height:1.75}
}

@media(max-width:370px){
  .hero h1{font-size:40px}
  .hero .maker{font-size:18.5px}
  .quick-link{font-size:13.5px;padding-left:2px;padding-right:2px}
  .quick-symbol{font-size:20px}
}


/* v0.6.6 recording information + temporary sound previews */
@media(max-width:430px){
  .recording-spec{padding:0 13px}
  .recording-spec>div{grid-template-columns:110px minmax(0,1fr);gap:10px}
  .recording-spec dt{font-size:13px}
  .recording-spec dd{font-size:15px}
    .audio-toggle{grid-template-columns:44px minmax(0,1fr);gap:10px}
  .audio-time{grid-column:2;justify-self:start;margin-top:-4px}
  .audio-seek{width:calc(100% - 54px);margin-left:54px}
}


/* v0.6.9 complete track metadata */
.audio-meta{letter-spacing:.005em}
@media(max-width:520px){
  .audio-copy strong{font-size:17.5px;line-height:1.38}
  .audio-meta{font-size:14.5px;line-height:1.45}
}

/* v0.6.11 final mobile QA: unified section hierarchy + living market date */
.section h2.section-heading{
  display:grid;
  grid-template-columns:auto minmax(0,1fr);
  column-gap:.28em;
  align-items:start;
  margin:0 0 16px;
  color:var(--ink);
  font-size:clamp(38px,6vw,44px);
  line-height:1.08;
  font-weight:500;
  letter-spacing:-.032em;
}
.section-index{color:var(--gold);white-space:nowrap}
.section-name{min-width:0}
.section-title-row{display:block;margin-bottom:18px}
.section-title-row .section-heading{margin-bottom:9px}
.viewer-hint{display:block}
.section-updated{
  margin:-3px 0 18px;
  color:var(--gold);
  font:700 13.5px/1.45 "Apple SD Gothic Neo","Malgun Gothic",sans-serif;
  letter-spacing:.045em;
}
.lang-btn{min-width:42px;min-height:42px;border-radius:21px}
#market{padding-bottom:44px}

@media(max-width:520px){
  .section h2.section-heading{font-size:38px;line-height:1.08;margin-bottom:15px}
  .section-title-row{margin-bottom:15px}
  .section-title-row .section-heading{margin-bottom:8px}
  .section-updated{margin:-2px 0 17px;font-size:13.5px}
  .lang-btn{min-width:42px;min-height:42px}
  .lb-stage{padding-left:45px;padding-right:45px}
  .lb-nav{width:44px;height:56px;border-radius:22px}
  .lb-prev{left:1px}.lb-next{right:1px}
  #market{padding-bottom:36px}
}

@media(max-width:370px){
  .section h2.section-heading{font-size:35px}
}