:root {
  --paper: #eee9df;
  --paper-bright: #f8f5ef;
  --ink: #191a17;
  --muted: #696960;
  --red: #8b3f31;
  --green: #294944;
  --bronze: #a77c45;
  --night: #151b19;
  --line: rgba(25, 26, 23, .2);
  --line-light: rgba(248, 245, 239, .2);
  --acid: var(--bronze);
  --orange: var(--red);
  --violet: var(--green);
  --sans: "Microsoft YaHei UI", "Microsoft YaHei", "PingFang SC", Arial, sans-serif;
  --display: "Source Han Serif SC", "Noto Serif CJK SC", "Songti SC", STSong, SimSun, serif;
  --mono: "Cascadia Mono", "IBM Plex Mono", Consolas, monospace;
  --page-pad: max(5vw, calc((100vw - 1500px) / 2));
  --qinhan-museum-art: url("assets/ui/museum-civilization-paper-v1.webp");
  --qinhan-exhibition-art: url("assets/ui/exhibition-lacquer-route-v1.webp");
  --qinhan-queen-art: url("assets/ui/queen-jade-paper-v1.webp");
  --qinhan-tiger-art: url("assets/ui/tiger-tally-bronze-v1.webp");
  --qinhan-method-art: url("assets/ui/method-lacquer-slips-v1.webp");
  --qinhan-detail-art: url("assets/ui/detail-imperial-archive-v1.webp");
}

* { box-sizing: border-box; }
html { overflow-x: clip; scroll-behavior: smooth; }
body { margin: 0; overflow-x: hidden; color: var(--ink); background: var(--paper); font-family: var(--sans); line-height: 1.7; }
body::selection { color: #fff; background: var(--red); }
a { color: inherit; }
button, input { font: inherit; }
img { display: block; max-width: 100%; }
.skip-link { position: fixed; z-index: 1000; top: -120px; left: .5rem; padding: .7rem 1rem; opacity: 0; color: #fff; background: #000; pointer-events: none; }
.skip-link:focus-visible { top: .5rem; opacity: 1; pointer-events: auto; }
.eyebrow { margin: 0; color: var(--bronze); font: 700 .66rem/1.5 var(--mono); letter-spacing: .18em; text-transform: uppercase; }
.eyebrow.dark { color: var(--green); }
.text-link { display: inline-block; margin-top: 1.25rem; padding-bottom: .18rem; border-bottom: 1px solid currentColor; color: var(--red); font-size: .78rem; text-decoration: none; }
.text-link.light { color: #d5b477; }
.text-link:hover, .text-link:focus-visible { color: var(--green); }

.site-header { position: absolute; z-index: 100; inset: 0 0 auto; display: grid; grid-template-columns: minmax(220px, 1fr) auto minmax(220px, 1fr); align-items: stretch; height: 66px; border-bottom: 1px solid rgba(255, 255, 255, .18); color: #fff; background: rgba(12, 16, 15, .88); }
.wordmark { display: flex; align-items: center; gap: .9rem; padding: 0 1.5rem; text-decoration: none; }
.wordmark-year { color: #d5b477; font: 700 .58rem/1 var(--mono); letter-spacing: .14em; }
.wordmark strong { font-family: var(--display); font-size: 1rem; font-weight: 500; letter-spacing: .12em; }
.site-header nav { display: flex; align-items: stretch; border-left: 1px solid rgba(255, 255, 255, .14); }
.site-header nav a { display: grid; min-width: 105px; place-items: center; padding: 0 1rem; border-right: 1px solid rgba(255, 255, 255, .14); color: rgba(255, 255, 255, .8); font-size: .7rem; letter-spacing: .05em; text-decoration: none; transition: color .2s, background .2s; }
.site-header nav a:hover, .site-header nav a:focus-visible { color: #fff; background: rgba(255, 255, 255, .1); }
.header-meta { display: flex; align-items: center; justify-content: flex-end; gap: 1rem; padding: 0 1.5rem; font: 700 .56rem/1 var(--mono); letter-spacing: .11em; }
.header-meta a { padding-bottom: .14rem; border-bottom: 1px solid rgba(255, 255, 255, .5); text-decoration: none; }

.hero { position: relative; min-height: 100svh; overflow: hidden; color: #fff; background: #0f1312; isolation: isolate; }
.hero-image { position: absolute; z-index: -3; inset: 0; background: url("https://pub-2f296678a1134f0fa45cf651ddd6f956.r2.dev/modules/qinhan/assets/external/qinhan-museum-aerial-zou-hong.jpg") center 46% / cover no-repeat; transform: scale(1.025); animation: hero-breathe 18s ease-in-out infinite alternate; }
.hero-scrim { position: absolute; z-index: -2; inset: 0; background: linear-gradient(90deg, rgba(9, 13, 12, .88) 0%, rgba(9, 13, 12, .52) 48%, rgba(9, 13, 12, .28) 75%, rgba(9, 13, 12, .58) 100%), linear-gradient(0deg, rgba(9, 13, 12, .72), transparent 55%); }
.hero::after { position: absolute; z-index: -1; inset: 66px 0 0; content: ""; opacity: .12; background: linear-gradient(90deg, transparent calc(50% - .5px), rgba(255, 255, 255, .7) 50%, transparent calc(50% + .5px)); pointer-events: none; }
.hero-copy { position: relative; z-index: 2; display: flex; min-height: 100svh; flex-direction: column; justify-content: center; width: min(1420px, calc(100% - 10vw)); margin: 0 auto; padding: 8.5rem 0 9rem; }
.hero h1 { display: flex; align-items: baseline; gap: clamp(1rem, 2vw, 2rem); width: max-content; max-width: 100%; margin: 1.2rem 0 0; font-family: var(--display); font-weight: 400; letter-spacing: .015em; line-height: 1; }
.hero h1 span { display: block; font-size: clamp(5rem, 9vw, 8.8rem); white-space: nowrap; }
.hero h1 em { display: block; padding-left: clamp(1rem, 2vw, 2rem); border-left: 1px solid rgba(255, 255, 255, .55); color: #d5b477; font-size: clamp(2.6rem, 4.3vw, 4.35rem); font-style: normal; letter-spacing: .08em; white-space: nowrap; }
.hero-deck { width: auto; max-width: 46rem; margin: 1.6rem 0 0; font-family: var(--display); font-size: clamp(1rem, 1.35vw, 1.22rem); letter-spacing: .045em; }
.hero-actions { display: flex; gap: .7rem; margin: 2rem 0 0; }
.button { min-width: 150px; padding: .72rem 1rem; border: 1px solid rgba(255, 255, 255, .72); font-size: .7rem; letter-spacing: .06em; text-align: center; text-decoration: none; transition: color .2s, background .2s, border-color .2s; }
.button-light { color: var(--ink); background: var(--paper-bright); }
.button-line { color: #fff; background: transparent; }
.button:hover, .button:focus-visible { border-color: #d5b477; color: var(--ink); background: #d5b477; }
.hero-stats { position: absolute; right: var(--page-pad); bottom: 2.6rem; display: grid; grid-template-columns: repeat(3, 1fr); margin: 0; border-top: 1px solid rgba(255, 255, 255, .45); border-bottom: 1px solid rgba(255, 255, 255, .22); background: rgba(8, 12, 11, .68); }
.hero-stats div { min-width: 112px; padding: .8rem 1rem; border-right: 1px solid rgba(255, 255, 255, .2); }
.hero-stats div:last-child { border: 0; }
.hero-stats dt { color: #d5b477; font: 700 1.25rem/1 var(--mono); }
.hero-stats dd { margin: .36rem 0 0; color: rgba(255, 255, 255, .68); font-size: .6rem; letter-spacing: .08em; }
.hero-credit { position: absolute; left: var(--page-pad); bottom: 1.25rem; margin: 0; opacity: .68; font: .52rem/1.3 var(--mono); }
.hero-scroll { position: absolute; right: 1.5rem; top: 50%; display: flex; align-items: center; gap: .8rem; transform: rotate(90deg) translateY(-50%); transform-origin: right top; color: rgba(255, 255, 255, .65); font: 700 .52rem/1 var(--mono); letter-spacing: .18em; text-decoration: none; }
.hero-scroll span { color: #d5b477; font-size: 1rem; }
.hero-orbit { position: absolute; z-index: 1; white-space: nowrap; color: rgba(255, 255, 255, .24); font: 700 clamp(.5rem, .65vw, .62rem)/1 var(--mono); letter-spacing: .28em; pointer-events: none; }
.orbit-a { top: 18%; right: -2rem; transform: rotate(90deg); }
.orbit-b { left: 1.3rem; bottom: 33%; transform: rotate(-90deg); transform-origin: left bottom; }

.museum-section { display: grid; grid-template-columns: repeat(12, minmax(0, 1fr)); gap: 2rem; padding: 7rem var(--page-pad); background: linear-gradient(100deg, rgba(248, 245, 239, .96), rgba(248, 245, 239, .76) 58%, rgba(248, 245, 239, .9)), var(--qinhan-museum-art) center / cover no-repeat; }
.section-rail { grid-column: 1 / -1; display: flex; align-items: center; gap: 1rem; padding-bottom: 1rem; border-bottom: 1px solid var(--line); }
.section-rail span { color: var(--red); font: 700 .75rem/1 var(--mono); }
.section-rail p { margin: 0; color: var(--muted); font: 700 .56rem/1 var(--mono); letter-spacing: .16em; }
.section-rail::after { flex: 1; height: 1px; margin-left: 1rem; content: ""; background: linear-gradient(90deg, var(--line), transparent); }
.museum-heading { grid-column: 1 / -1; display: grid; grid-template-columns: repeat(12, minmax(0, 1fr)); gap: 1rem 2rem; align-items: end; padding: 1.6rem 0 1rem; }
.museum-heading .eyebrow { grid-column: 1 / 6; }
.museum-heading h2 { grid-column: 1 / 9; margin: 0; font-family: var(--display); font-size: clamp(3rem, 5.2vw, 5rem); font-weight: 500; letter-spacing: .015em; line-height: 1.18; }
.museum-heading .section-deck { grid-column: 9 / -1; margin: 0; padding-left: 1.5rem; border-left: 2px solid var(--red); color: var(--muted); font-family: var(--display); font-size: .96rem; line-height: 1.8; white-space: nowrap; }
.museum-prose { grid-column: 1 / 6; align-self: start; max-width: 40rem; }
.museum-prose p { margin: 0 0 1.25rem; color: #3f413d; font-family: var(--display); font-size: 1rem; line-height: 2; text-align: justify; text-indent: 2em; }
.museum-prose .lead { color: var(--ink); font-size: clamp(1.14rem, 1.35vw, 1.3rem); line-height: 1.9; }
.museum-figure { grid-column: 6 / -1; align-self: start; margin: 0; }
.museum-figure img { width: 100%; height: clamp(350px, 35vw, 520px); object-fit: cover; filter: saturate(.75) contrast(1.04); transition: filter .5s; }
.museum-figure:hover img { filter: saturate(1) contrast(1.02); }
.museum-figure figcaption { display: flex; justify-content: space-between; gap: 1rem; padding: .75rem 0; border-bottom: 1px solid var(--line); color: var(--muted); font: .55rem/1.6 var(--mono); }
.museum-figure figcaption a { text-align: right; }
.museum-facts { grid-column: 1 / -1; display: grid; grid-template-columns: repeat(4, 1fr); margin-top: 1rem; border-top: 1px solid var(--ink); border-bottom: 1px solid var(--ink); }
.museum-facts div { padding: 1rem 1.1rem; border-right: 1px solid var(--line); }
.museum-facts div:last-child { border: 0; }
.museum-facts span { display: block; margin-bottom: .45rem; color: var(--muted); font: .54rem/1 var(--mono); letter-spacing: .1em; }
.museum-facts strong { font-family: var(--display); font-size: .96rem; font-weight: 500; }

.exhibition-band { position: relative; display: grid; grid-template-columns: repeat(12, minmax(0, 1fr)); gap: 2rem; min-height: auto; padding: 7rem var(--page-pad); overflow: hidden; color: #f4f0e7; background: linear-gradient(100deg, rgba(18, 32, 29, .92), rgba(41, 73, 68, .8), rgba(18, 32, 29, .92)), var(--qinhan-exhibition-art) center / cover no-repeat; }
.exhibition-band::after { position: absolute; right: -8rem; bottom: -14rem; width: 36rem; height: 36rem; border: 1px solid rgba(213, 180, 119, .18); border-radius: 50%; content: ""; box-shadow: 0 0 0 90px rgba(213, 180, 119, .025), 0 0 0 180px rgba(213, 180, 119, .018); }
.exhibition-sticky { position: relative; z-index: 1; grid-column: 1 / 5; align-self: start; display: block; min-height: 0; padding: 0; overflow: visible; background: none; }
.exhibition-sticky::before { display: block; width: 3.2rem; height: 2px; margin: 1.35rem 0 2.4rem; content: ""; background: #d5b477; }
.exhibition-sticky h2 { position: relative; margin: 0; font-family: var(--display); font-size: clamp(3.6rem, 6.5vw, 6.2rem); font-weight: 500; letter-spacing: .035em; line-height: 1.12; }
.exhibition-subtitle { position: relative; margin: 1.4rem 0 0; color: #d5b477; font-family: var(--display); font-size: clamp(1.15rem, 1.8vw, 1.65rem); letter-spacing: .08em; }
.exhibition-copy { position: relative; z-index: 1; grid-column: 6 / -1; display: block; padding: 0; }
.exhibition-copy p { max-width: 48rem; margin: 0 0 1.45rem; color: rgba(244, 240, 231, .74); font-family: var(--display); font-size: 1rem; line-height: 2; text-align: justify; text-indent: 2em; }
.exhibition-copy .lead { color: #fff; font-size: clamp(1.18rem, 1.55vw, 1.42rem); line-height: 1.9; }
.chapter-index { display: grid; grid-template-columns: repeat(3, 1fr); margin-top: 2.2rem; border-top: 1px solid rgba(244, 240, 231, .28); border-left: 1px solid rgba(244, 240, 231, .28); }
.chapter-index span { display: grid; min-height: 62px; place-items: center; border-right: 1px solid rgba(244, 240, 231, .28); border-bottom: 1px solid rgba(244, 240, 231, .28); color: #e1c48d; font-family: var(--display); font-size: 1rem; letter-spacing: .08em; }

.queen-section { display: grid; grid-template-columns: minmax(0, 1.08fr) minmax(440px, .92fr); min-height: 0; border-bottom: 1px solid var(--line); color: var(--ink); background: linear-gradient(90deg, rgba(230, 221, 208, .78), rgba(230, 221, 208, .94) 48%, rgba(230, 221, 208, .9)), var(--qinhan-queen-art) center / cover no-repeat; }
.queen-image-wrap { position: relative; min-height: min(820px, 82svh); overflow: hidden; background: #080908; }
.queen-image-wrap img { width: 100%; height: 100%; object-fit: cover; object-position: center bottom; transition: transform .8s cubic-bezier(.2,.7,.2,1); }
.queen-image-wrap:hover img { transform: scale(1.025); }
.queen-image-wrap p { position: absolute; inset: auto 1rem 1rem; margin: 0; padding: .45rem .65rem; color: rgba(255, 255, 255, .78); background: rgba(0, 0, 0, .74); font: .5rem/1.4 var(--mono); }
.queen-copy { position: relative; display: flex; flex-direction: column; justify-content: center; padding: 5.5rem clamp(2.5rem, 5vw, 6rem); overflow: hidden; }
.queen-number { position: static; margin-bottom: .8rem; color: var(--red); font: 700 .68rem/1 var(--mono); letter-spacing: .16em; }
.queen-number::after { content: " / OBJECT FOCUS"; }
.special-label { align-self: flex-start; margin-top: 1rem; padding: .38rem .65rem; border: 1px solid var(--red); color: var(--red); font: 700 .56rem/1 var(--mono); letter-spacing: .08em; }
.queen-copy h2 { position: relative; margin: 1.25rem 0 1.5rem; font-family: var(--display); font-size: clamp(3.4rem, 5.6vw, 5.4rem); font-weight: 500; letter-spacing: .04em; line-height: 1.1; }
.queen-copy > p:not(.eyebrow) { position: relative; margin: 0 0 1.15rem; color: #41423d; font-family: var(--display); font-size: .98rem; line-height: 1.95; text-align: justify; text-indent: 2em; }
.queen-copy .queen-lead { color: var(--ink); font-size: clamp(1.12rem, 1.4vw, 1.3rem); line-height: 1.85; }
.queen-meta { position: relative; display: grid; grid-template-columns: 1fr 1fr; margin: 1rem 0 0; border: 1px solid var(--line); }
.queen-meta div { padding: .8rem; border-right: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.queen-meta div:nth-child(2n) { border-right: 0; }
.queen-meta div:nth-last-child(-n+2) { border-bottom: 0; }
.queen-meta dt { color: var(--muted); font: .52rem/1 var(--mono); letter-spacing: .1em; }
.queen-meta dd { margin: .42rem 0 0; font-family: var(--display); font-size: .95rem; }
.queen-actions { position: relative; display: flex; align-items: stretch; gap: .6rem; margin-top: 1.2rem; }
.queen-actions button, .queen-actions a { min-height: 44px; padding: .7rem 1rem; border: 1px solid var(--ink); color: var(--ink); background: transparent; cursor: pointer; font-size: .68rem; text-decoration: none; }
.queen-actions button { color: #fff; background: var(--green); border-color: var(--green); }

.seal-viewer-section { padding: 7rem var(--page-pad); color: #f4f0e7; background: #101513; }
.seal-viewer-intro { display: grid; grid-template-columns: minmax(250px, .8fr) minmax(0, 1.2fr); gap: 1.3rem 3rem; align-items: end; max-width: 1180px; margin: 0 auto 2.4rem; }
.seal-viewer-intro .eyebrow { grid-column: 1 / -1; color: #d5b477; }
.seal-viewer-intro h2 { margin: 0; color: #f4f0e7; font-family: var(--display); font-size: clamp(2.8rem, 5vw, 5rem); font-weight: 500; letter-spacing: .02em; line-height: 1.1; }
.seal-viewer-intro > p:not(.eyebrow) { max-width: 42rem; margin: 0; color: rgba(244,240,231,.68); font-family: var(--display); font-size: .96rem; line-height: 1.95; }
.seal-viewer-facts { grid-column: 2; display: flex; flex-wrap: wrap; gap: .6rem 1rem; color: #d5b477; font: .53rem/1.5 var(--mono); letter-spacing: .1em; }
.seal-viewer-layout { display: grid; grid-template-columns: minmax(0, 1.18fr) minmax(260px, .62fr); gap: clamp(1.4rem, 4vw, 4.5rem); max-width: 1180px; margin: 0 auto; }
.seal-viewer-stage { position: relative; align-self: start; height: min(620px, 64vw); min-height: 420px; overflow: hidden; border: 1px solid rgba(213,180,119,.34); background: radial-gradient(circle at 50% 42%, #2b3731 0, #101513 62%, #090d0c 100%); box-shadow: 0 28px 80px rgba(0,0,0,.24); isolation: isolate; }
.seal-viewer-stage::before { position: absolute; z-index: 0; top: 11%; left: 50%; width: min(56%, 340px); aspect-ratio: 1; border: 1px solid rgba(213,180,119,.16); border-radius: 50%; content: ""; transform: translateX(-50%); pointer-events: none; }
.seal-viewer-stage::after { position: absolute; z-index: 0; right: 14%; bottom: 16%; left: 14%; height: 1px; content: ""; background: linear-gradient(90deg, transparent, rgba(213,180,119,.22), transparent); pointer-events: none; }
#seal-viewer { position: relative; z-index: 2; display: block; width: 100%; height: 100%; cursor: grab; touch-action: none; outline: none; }
#seal-viewer:focus-visible { box-shadow: inset 0 0 0 2px #d5b477; }
#seal-viewer.is-dragging { cursor: grabbing; }
.seal-viewer-grid { position: absolute; z-index: 1; right: 0; bottom: 0; left: 0; height: 28%; opacity: .24; background: repeating-linear-gradient(90deg, transparent 0 34px, rgba(213,180,119,.18) 35px 36px), linear-gradient(180deg, transparent, rgba(213,180,119,.08)); transform: perspective(260px) rotateX(58deg) scale(1.2); transform-origin: bottom center; pointer-events: none; }
.seal-viewer-badge { position: absolute; z-index: 3; top: 1rem; left: 1rem; padding: .42rem .58rem; color: #d5b477; background: rgba(9,13,12,.74); font: .5rem/1.4 var(--mono); letter-spacing: .08em; pointer-events: none; }
.seal-viewer-badge span { display: block; margin-top: .24rem; color: rgba(244,240,231,.58); letter-spacing: .02em; }
.seal-viewer-status { position: absolute; z-index: 3; right: 1rem; bottom: 1rem; color: rgba(244,240,231,.66); font: .52rem/1.4 var(--mono); letter-spacing: .04em; pointer-events: none; }
.seal-viewer-notes { display: flex; align-self: start; flex-direction: column; justify-content: space-between; padding: .5rem 0 0 1.5rem; border-left: 1px solid rgba(244,240,231,.2); }
.seal-viewer-notes h3 { margin: .85rem 0 .8rem; color: #f4f0e7; font-family: var(--display); font-size: clamp(1.45rem, 2.2vw, 2.2rem); font-weight: 500; line-height: 1.25; }
.seal-viewer-notes p:not(.eyebrow) { margin: 0; color: rgba(244,240,231,.63); font-family: var(--display); font-size: .86rem; line-height: 1.95; }
.seal-viewer-controls { display: grid; grid-template-columns: 1fr; gap: .5rem; margin-top: 2rem; }
.seal-viewer-controls button { min-height: 44px; padding: .65rem .8rem; border: 1px solid rgba(213,180,119,.46); color: #d5b477; background: transparent; cursor: pointer; font: .59rem/1.4 var(--mono); text-align: left; transition: color .18s, background .18s, border-color .18s, transform .18s; }
.seal-viewer-controls button:hover, .seal-viewer-controls button:focus-visible { border-color: #d5b477; color: #101513; background: #d5b477; transform: translateX(4px); }
.seal-viewer-legend { display: grid; gap: .8rem; margin: 2.4rem 0 0; padding-top: 1rem; border-top: 1px solid rgba(244,240,231,.18); }
.seal-viewer-legend div { display: grid; grid-template-columns: 4.5rem 1fr; gap: .5rem; }
.seal-viewer-legend dt { color: rgba(244,240,231,.42); font: .52rem/1.5 var(--mono); }
.seal-viewer-legend dd { margin: 0; color: rgba(244,240,231,.72); font-size: .7rem; line-height: 1.5; }
.archive-3d-link { display: inline-block; margin-top: .7rem; color: var(--green); font-family: var(--sans); font-size: .78rem; text-decoration: underline; text-underline-offset: .2em; }

.archive-section { padding: 7rem var(--page-pad); background: var(--paper); }
.archive-intro { display: grid; grid-template-columns: minmax(280px, 4fr) minmax(420px, 5fr) minmax(160px, 2fr); gap: 2rem; align-items: end; padding-bottom: 2rem; border-bottom: 1px solid var(--ink); }
.archive-intro h2 { margin: .75rem 0 0; font-family: var(--display); font-size: clamp(3rem, 4.8vw, 4.7rem); font-weight: 500; letter-spacing: .02em; line-height: 1.18; white-space: nowrap; }
.archive-intro > p { margin: 0; color: #44453f; font-family: var(--display); font-size: .98rem; line-height: 1.95; text-align: justify; text-indent: 2em; }
.archive-total { max-width: 180px; color: var(--green); font: 700 .6rem/1.7 var(--mono); letter-spacing: .07em; text-align: right; }
.archive-tools { display: grid; grid-template-columns: minmax(260px, .75fr) minmax(420px, 1.5fr) auto; gap: 1rem; align-items: center; padding: 1.2rem 0; border-bottom: 1px solid var(--line); }
.search-field { display: grid; grid-template-columns: auto 1fr auto; align-items: center; min-height: 46px; border: 1px solid var(--line); background: var(--paper-bright); }
.search-field:focus-within { border-color: var(--green); }
.search-field > span { padding: 0 .75rem; color: var(--muted); font: 700 .56rem/1 var(--mono); letter-spacing: .1em; }
.search-field input { min-width: 0; height: 44px; padding: 0 .5rem; border: 0; outline: 0; color: var(--ink); background: transparent; font-family: var(--display); }
.search-field kbd { margin-right: .45rem; padding: .25rem .4rem; color: #fff; background: var(--green); font: .5rem/1 var(--mono); }
.category-filters { display: flex; gap: .35rem; overflow-x: auto; scrollbar-width: thin; }
.filter-chip { flex: 0 0 auto; min-height: 38px; padding: 0 .75rem; border: 1px solid var(--line); color: var(--muted); background: transparent; cursor: pointer; font-size: .62rem; }
.filter-chip:hover, .filter-chip:focus-visible { border-color: var(--green); color: var(--green); }
.filter-chip.is-active { border-color: var(--green); color: #fff; background: var(--green); }
.featured-toggle { display: flex; align-items: center; gap: .5rem; white-space: nowrap; font-size: .64rem; }
.featured-toggle input { accent-color: var(--red); }
.archive-status { padding: 1rem 0; color: var(--muted); font: .58rem/1.5 var(--mono); letter-spacing: .08em; }
.archive-grid { display: grid; grid-template-columns: repeat(12, minmax(0, 1fr)); grid-auto-rows: 320px; align-items: stretch; gap: 1rem; }
.object-card, .object-card:nth-child(5n+1), .object-card:nth-child(5n+2) { grid-column: span 6; min-width: 0; height: 100%; border: 1px solid var(--line); background: var(--paper-bright); transition: border-color .2s, transform .2s, box-shadow .2s; }
.object-card:hover, .object-card:focus-within { border-color: rgba(41, 73, 68, .7); transform: translateY(-2px); box-shadow: 0 12px 32px rgba(25, 26, 23, .07); }
.object-card > button { display: grid; grid-template-columns: minmax(155px, 34%) minmax(0, 1fr); width: 100%; height: 100%; min-height: 0; padding: 0; border: 0; color: inherit; background: transparent; cursor: pointer; text-align: left; }
.card-image { position: relative; min-width: 0; height: 100%; overflow: hidden; background: #0b0c0b; }
.card-image img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; filter: saturate(.72) contrast(1.04); transition: filter .35s, transform .5s cubic-bezier(.2,.7,.2,1); }
.object-card:hover .card-image img, .object-card:focus-within .card-image img { filter: saturate(1) contrast(1.02); transform: scale(1.03); }
.image-process { position: absolute; inset: auto 0 0; padding: .38rem .5rem; overflow: hidden; color: rgba(255,255,255,.7); background: rgba(0,0,0,.7); font: .42rem/1.3 var(--mono); text-overflow: ellipsis; white-space: nowrap; }
.card-copy { display: flex; min-width: 0; min-height: 0; flex-direction: column; overflow: hidden; padding: 1.1rem 1.25rem; }
.card-topline { display: flex; justify-content: space-between; gap: .75rem; color: var(--green); font: 700 .68rem/1.3 var(--mono); letter-spacing: .08em; }
.card-special { align-self: flex-start; margin-top: .65rem; padding: .25rem .4rem; color: #fff; background: var(--red); font: .58rem/1.2 var(--mono); }
.card-copy h3 { margin: .72rem 0 0; font-family: var(--display); font-size: clamp(1.55rem, 1.75vw, 1.9rem); font-weight: 500; letter-spacing: .01em; line-height: 1.25; }
.card-era { margin-top: .48rem; color: var(--red); font: 700 .68rem/1.25 var(--mono); letter-spacing: .1em; }
.card-summary { display: -webkit-box; margin-top: .65rem; overflow: hidden; color: #565851; font-family: var(--display); font-size: .95rem; line-height: 1.72; -webkit-box-orient: vertical; -webkit-line-clamp: 4; }
.card-tags { display: flex; flex-wrap: wrap; gap: .35rem; margin-top: .7rem; }
.card-tags span { padding: .24rem .42rem; border: 1px solid rgba(41, 73, 68, .36); color: var(--green); font: .62rem/1.2 var(--mono); }
.card-metrics { display: flex; flex-wrap: wrap; gap: .35rem .7rem; margin-top: .7rem; padding-top: .65rem; border-top: 1px solid var(--line); color: var(--muted); font: .66rem/1.35 var(--mono); }
.card-footer { display: flex; flex-wrap: wrap; gap: .42rem .75rem; align-items: center; margin-top: auto; padding-top: .75rem; color: var(--muted); font: .66rem/1.4 var(--mono); }
.card-footer b { margin-left: auto; color: var(--green); }
.load-more { display: block; min-width: 220px; min-height: 48px; margin: 2rem auto 0; border: 1px solid var(--green); color: #fff; background: var(--green); cursor: pointer; font: 700 .62rem/1 var(--mono); letter-spacing: .09em; }
.load-more[hidden] { display: none; }

.method-section { display: grid; grid-template-columns: repeat(12, minmax(0, 1fr)); gap: 2rem; padding: 7rem var(--page-pad); color: #f4f0e7; background: linear-gradient(100deg, rgba(10, 14, 13, .94), rgba(21, 27, 25, .74), rgba(10, 14, 13, .94)), var(--qinhan-method-art) center / cover no-repeat; }
.method-title-wrap { grid-column: 1 / 5; }
.method-title-wrap::before { display: block; width: 3.2rem; height: 2px; margin: 1.4rem 0 2.2rem; content: ""; background: #d5b477; }
.method-title-wrap h2 { margin: 0; font-family: var(--display); font-size: clamp(3.1rem, 5vw, 4.8rem); font-weight: 500; letter-spacing: .035em; line-height: 1.18; }
.method-copy { grid-column: 6 / -1; }
.method-copy p { max-width: 48rem; margin: 0 0 1.35rem; color: rgba(244,240,231,.7); font-family: var(--display); font-size: 1rem; line-height: 2; text-align: justify; text-indent: 2em; }
.method-steps { grid-column: 1 / -1; display: grid; grid-template-columns: repeat(4, 1fr); margin-top: 1.5rem; border-top: 1px solid var(--line-light); border-left: 1px solid var(--line-light); }
.method-steps article { min-height: 150px; padding: 1.1rem; border-right: 1px solid var(--line-light); border-bottom: 1px solid var(--line-light); }
.method-steps span { color: #d5b477; font: 700 .6rem/1 var(--mono); }
.method-steps h3 { margin: 2rem 0 .45rem; font-family: var(--display); font-size: 1.3rem; font-weight: 500; }
.method-steps p { margin: 0; color: rgba(244,240,231,.55); font-size: .72rem; }
.source-list { grid-column: 1 / -1; display: grid; grid-template-columns: repeat(2, 1fr); border-top: 1px solid var(--line-light); }
.source-list article { display: grid; grid-template-columns: 2rem 1fr auto; gap: 1rem; align-items: center; padding: 1rem 0; border-bottom: 1px solid var(--line-light); }
.source-list article:nth-child(odd) { padding-right: 2rem; border-right: 1px solid var(--line-light); }
.source-list article:nth-child(even) { padding-left: 2rem; }
.source-list article > span { color: #d5b477; font: .56rem/1 var(--mono); }
.source-list h3 { margin: 0; font-family: var(--display); font-size: .95rem; font-weight: 500; }
.source-list p { margin: .24rem 0 0; color: rgba(244,240,231,.5); font-size: .66rem; }
.source-list a { color: #d5b477; text-decoration: none; }
.source-list b { color: rgba(244,240,231,.45); font: .5rem/1 var(--mono); }

.footer { display: grid; grid-template-columns: 1fr auto auto; gap: 2rem; align-items: center; padding: 2rem var(--page-pad); border-top: 1px solid var(--line-light); color: #fff; background: var(--night); }
.footer div { display: flex; align-items: baseline; gap: 1rem; }
.footer span { font-family: var(--display); font-size: 1rem; }
.footer strong, .footer p, .footer a { margin: 0; color: rgba(255,255,255,.5); font: .5rem/1.5 var(--mono); letter-spacing: .07em; }

.archive-dialog { grid-template-columns: minmax(380px, 1.05fr) minmax(430px, .95fr); width: min(1240px, calc(100vw - 2rem)); max-width: none; height: min(880px, calc(100dvh - 2rem)); max-height: none; padding: 0; overflow: hidden; border: 1px solid #a77c45; color: #fff; background: #151a18; }
.archive-dialog[open] { display: grid; animation: dialog-in .28s ease-out; }
.archive-dialog::backdrop { background: rgba(0,0,0,.8); }
.dialog-close { position: absolute; z-index: 10; top: .8rem; right: .8rem; width: 44px; height: 44px; border: 1px solid #a77c45; color: #d5b477; background: #151a18; cursor: pointer; font-size: 1.25rem; }
.dialog-media { display: grid; grid-template-rows: minmax(0, 1fr) auto auto; min-height: 0; overflow: hidden; background: linear-gradient(rgba(5, 6, 5, .82), rgba(5, 6, 5, .9)), var(--qinhan-detail-art) center / cover no-repeat; }
.dialog-main-image { min-height: 0; overflow: hidden; }
.dialog-main-image img { width: 100%; height: 100%; object-fit: contain; }
.view-switch { display: grid; grid-template-columns: 1fr 1fr; padding: .65rem; background: #151a18; }
.view-switch button { min-height: 42px; border: 1px solid rgba(255,255,255,.2); color: rgba(255,255,255,.62); background: transparent; cursor: pointer; font-size: .64rem; }
.view-switch button.is-active { border-color: #a77c45; color: #151a18; background: #d5b477; }
.thumbnail-strip { display: flex; gap: .45rem; min-height: 92px; padding: .65rem; overflow-x: auto; background: #151a18; }
.thumbnail-strip button { position: relative; flex: 0 0 92px; height: 72px; padding: 0; overflow: hidden; border: 1px solid rgba(255,255,255,.16); background: #050605; cursor: pointer; }
.thumbnail-strip img { width: 100%; height: 100%; object-fit: cover; }
.thumbnail-strip span { position: absolute; inset: auto 0 0; padding: .2rem; overflow: hidden; color: #fff; background: rgba(0,0,0,.78); font: .4rem/1.2 var(--mono); text-overflow: ellipsis; white-space: nowrap; }
.dialog-content { min-height: 0; padding: 3.4rem 2.8rem 2.8rem; overflow-y: auto; }
.dialog-kicker { margin: 0 0 .7rem; color: #d5b477; font: 700 .54rem/1.5 var(--mono); letter-spacing: .1em; }
.dialog-special { display: inline-block; margin-bottom: .8rem; padding: .3rem .5rem; border: 1px solid #b66552; color: #d98470; font: .5rem/1 var(--mono); }
.dialog-header h2 { margin: 0; font-family: var(--display); font-size: clamp(2.35rem, 3vw, 3.4rem); font-weight: 500; letter-spacing: .015em; line-height: 1.18; }
.dialog-summary { margin: 1.1rem 0 0; color: #fff; font-family: var(--display); font-size: 1.08rem; line-height: 1.85; text-align: justify; text-indent: 2em; }
.dialog-section { margin-top: 1.5rem; padding-top: 1.2rem; border-top: 1px solid rgba(255,255,255,.18); }
.dialog-section h3, .dialog-sources h3 { margin: 0 0 .65rem; color: #d5b477; font-family: var(--display); font-size: .96rem; font-weight: 500; }
.dialog-section p { margin: 0; color: rgba(255,255,255,.68); font-family: var(--display); font-size: .86rem; line-height: 1.95; text-align: justify; text-indent: 2em; white-space: pre-line; }
.evidence-section { padding: 1rem; border: 1px solid rgba(167,124,69,.4); background: rgba(167,124,69,.06); }
.label-details { margin-top: 1.2rem; padding: .8rem 0; border-top: 1px solid rgba(255,255,255,.18); border-bottom: 1px solid rgba(255,255,255,.18); }
.label-details summary { cursor: pointer; font-size: .68rem; }
.label-details pre { overflow: auto; color: rgba(255,255,255,.6); font: .65rem/1.75 var(--sans); white-space: pre-wrap; }
.dialog-meta { display: grid; grid-template-columns: 1fr 1fr; margin-top: 1.2rem; border-top: 1px solid rgba(255,255,255,.16); border-left: 1px solid rgba(255,255,255,.16); }
.dialog-meta div { padding: .75rem; border-right: 1px solid rgba(255,255,255,.16); border-bottom: 1px solid rgba(255,255,255,.16); }
.dialog-meta span { display: block; color: rgba(255,255,255,.42); font: .46rem/1 var(--mono); }
.dialog-meta strong { display: block; margin-top: .45rem; font-size: .63rem; font-weight: 500; }
.dialog-sources { margin-top: 1.3rem; }
.dialog-sources a { display: inline-block; margin: 0 .4rem .4rem 0; padding: .45rem .7rem; border: 1px solid rgba(255,255,255,.22); color: #d5b477; font-size: .6rem; text-decoration: none; }
.dialog-sources p { color: rgba(255,255,255,.58); font-size: .68rem; }

@keyframes hero-breathe { to { transform: scale(1.065) translate3d(-.7%, -.3%, 0); } }
@keyframes dialog-in { from { opacity: 0; transform: translateY(16px) scale(.988); } }
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { scroll-behavior: auto !important; animation: none !important; transition: none !important; }
}

@media (max-width: 1120px) {
  .site-header { grid-template-columns: minmax(0, 1fr) auto; grid-template-rows: 66px auto; height: auto; }
  body .site-header.is-scrolled { grid-template-rows: 56px auto; height: auto; }
  .site-header nav { grid-column: 1 / -1; grid-row: 2; display: flex; min-width: 0; overflow-x: auto; overscroll-behavior-x: contain; border-top: 1px solid rgba(255, 255, 255, .14); border-left: 0; scrollbar-width: none; }
  .site-header nav::-webkit-scrollbar { display: none; }
  .site-header nav a { flex: 1 0 auto; min-height: 44px; white-space: nowrap; }
  .museum-heading h2 { grid-column: 1 / 10; font-size: clamp(3rem, 6vw, 4.4rem); }
  .museum-heading .section-deck { grid-column: 10 / -1; }
  .museum-prose { grid-column: 1 / 7; }
  .museum-figure { grid-column: 7 / -1; }
  .archive-intro { grid-template-columns: 1fr 1.2fr; }
  .archive-total { grid-column: 2; max-width: none; text-align: left; }
  .archive-tools { grid-template-columns: 1fr; }
  .object-card > button { grid-template-columns: 34% 66%; }
}

@media (max-width: 820px) {
  :root { --page-pad: 1rem; }
  .site-header { grid-template-rows: 62px auto; height: auto; }
  .wordmark { padding: 0 1rem; }
  .header-meta span { display: none; }
  .header-meta { padding: 0 1rem; }
  .hero-copy { width: calc(100% - 2rem); padding: 7rem 0 11rem; }
  .hero h1 { flex-direction: column; align-items: flex-start; gap: .8rem; }
  .hero h1 span { font-size: clamp(4rem, 22vw, 6.2rem); }
  .hero h1 em { padding: .75rem 0 0; border-top: 1px solid rgba(255, 255, 255, .55); border-left: 0; font-size: clamp(2.7rem, 14vw, 4rem); }
  .hero-deck { max-width: 22rem; font-size: 1rem; }
  .hero-stats { right: 1rem; bottom: 3.6rem; left: 1rem; }
  .hero-stats div { min-width: 0; }
  .hero-credit { left: 1rem; bottom: 1.2rem; }
  .hero-scroll, .hero-orbit { display: none; }
  .museum-section { gap: 1.5rem; padding-top: 5rem; padding-bottom: 5rem; }
  .museum-heading { display: block; padding-top: 1rem; }
  .museum-heading h2 { margin-top: .8rem; font-size: clamp(2.35rem, 9.8vw, 3.35rem); line-height: 1.22; white-space: nowrap; }
  .museum-heading .section-deck { margin-top: 1.2rem; padding-left: 1rem; font-size: .92rem; white-space: normal; }
  .museum-prose, .museum-figure, .museum-facts { grid-column: 1 / -1; }
  .museum-prose { max-width: none; }
  .museum-prose p, .exhibition-copy p, .queen-copy > p:not(.eyebrow), .archive-intro > p, .method-copy p { text-align: left; }
  .museum-figure img { height: 58vw; min-height: 260px; }
  .museum-facts { grid-template-columns: 1fr 1fr; }
  .museum-facts div:nth-child(2) { border-right: 0; }
  .museum-facts div:nth-child(-n+2) { border-bottom: 1px solid var(--line); }
  .exhibition-band { display: block; padding-top: 5rem; padding-bottom: 5rem; }
  .exhibition-copy { margin-top: 2.8rem; }
  .exhibition-sticky h2 { font-size: clamp(3.2rem, 14vw, 4.5rem); }
  .exhibition-copy p { max-width: none; }
  .chapter-index { grid-template-columns: repeat(2, 1fr); }
  .queen-section { grid-template-columns: 1fr; }
  .queen-image-wrap { min-height: 68svh; }
  .queen-copy { padding: 4.5rem 1rem; }
  .queen-copy h2 { font-size: clamp(3.2rem, 15vw, 4.6rem); }
  .seal-viewer-section { padding: 5rem 1rem; }
  .seal-viewer-intro { display: block; margin-bottom: 1.8rem; }
  .seal-viewer-intro h2 { margin: .8rem 0 1rem; font-size: clamp(2.5rem, 12vw, 3.7rem); }
  .seal-viewer-facts { margin-top: 1.2rem; }
  .seal-viewer-layout { display: block; }
  .seal-viewer-stage { height: min(78vw, 520px); min-height: 360px; }
  .seal-viewer-notes { min-height: 0; margin-top: 2rem; padding: 1.5rem 0 0; border-top: 1px solid rgba(244,240,231,.2); border-left: 0; }
  .seal-viewer-controls { grid-template-columns: repeat(3, 1fr); margin-top: 1.5rem; }
  .seal-viewer-controls button { min-height: 48px; padding: .5rem; font-size: .52rem; }
  .seal-viewer-controls button:hover, .seal-viewer-controls button:focus-visible { transform: translateY(-2px); }
  .seal-viewer-legend { margin-top: 1.8rem; }
  .archive-section { padding-top: 5rem; padding-bottom: 5rem; }
  .archive-intro { grid-template-columns: 1fr; gap: 1.3rem; }
  .archive-intro h2 { font-size: clamp(2.65rem, 11.8vw, 3.7rem); white-space: nowrap; }
  .archive-total { grid-column: auto; }
  .archive-grid { grid-template-columns: 1fr; grid-auto-rows: auto; }
  .object-card, .object-card:nth-child(5n+1), .object-card:nth-child(5n+2) { grid-column: auto; }
  .object-card, .object-card:nth-child(5n+1), .object-card:nth-child(5n+2) { height: auto; }
  .object-card > button { grid-template-columns: 36% 64%; height: auto; min-height: 0; }
  .card-image { height: auto; min-height: 220px; }
  .card-copy h3 { font-size: 1.4rem; }
  .method-section { display: block; padding-top: 5rem; padding-bottom: 5rem; }
  .method-title-wrap, .method-copy, .method-steps, .source-list { grid-column: 1 / -1; }
  .method-title-wrap h2 { font-size: clamp(2.65rem, 11.8vw, 3.7rem); }
  .method-copy { margin-top: 2.8rem; }
  .method-steps { margin-top: 2.4rem; }
  .source-list { margin-top: 2rem; }
  .method-steps { grid-template-columns: 1fr 1fr; }
  .source-list { grid-template-columns: 1fr; }
  .source-list article:nth-child(odd), .source-list article:nth-child(even) { padding: 1rem 0; border-right: 0; }
  .footer { grid-template-columns: 1fr; gap: .75rem; }
  .archive-dialog { grid-template-columns: 1fr; width: calc(100vw - 1rem); height: calc(100dvh - 1rem); overflow-y: auto; }
  .archive-dialog[open] { display: block; }
  .archive-dialog[open].is-ready:not(.is-closing) { transform: none; }
  .archive-dialog .dialog-close { position: fixed; top: 1.3rem; right: 1.3rem; }
  .dialog-media { height: auto; }
  .dialog-main-image { height: 54svh; }
  .dialog-content { padding: 2.6rem 1rem 2rem; overflow: visible; }
}

@media (max-width: 480px) {
  .wordmark-year { display: none; }
  .wordmark strong { font-size: .9rem; }
  .header-meta { font-size: .5rem; }
  .button { min-width: 0; flex: 1; }
  .hero-stats dd { font-size: .52rem; }
  .museum-heading h2 { font-size: clamp(2.1rem, 8.7vw, 2.45rem); letter-spacing: -.025em; }
  .museum-facts { grid-template-columns: 1fr; }
  .museum-facts div, .museum-facts div:nth-child(2) { border-right: 0; border-bottom: 1px solid var(--line); }
  .queen-meta { grid-template-columns: 1fr; }
  .queen-meta div, .queen-meta div:nth-child(2n), .queen-meta div:nth-last-child(-n+2) { border-right: 0; border-bottom: 1px solid var(--line); }
  .queen-actions { flex-direction: column; }
  .object-card > button { grid-template-columns: 36% 64%; min-height: 0; }
  .card-copy { padding: .75rem; }
  .card-copy h3 { font-size: 1.22rem; }
  .card-image { min-height: 212px; }
  .card-summary { font-size: .84rem; line-height: 1.65; -webkit-line-clamp: 4; }
  .card-tags span { font-size: .58rem; }
  .card-metrics { gap: .3rem .55rem; font-size: .62rem; }
  .card-footer { font-size: .62rem; }
  .method-steps { grid-template-columns: 1fr; }
  .dialog-main-image { height: 46svh; }
  .dialog-meta { grid-template-columns: 1fr; }
  .seal-viewer-stage { height: 92vw; min-height: 300px; }
  .seal-viewer-badge { top: .65rem; left: .65rem; font-size: .43rem; }
  .seal-viewer-status { right: .65rem; bottom: .65rem; font-size: .45rem; }
  .seal-viewer-controls { gap: .35rem; }
  .seal-viewer-controls button { font-size: .45rem; }
}

/* --------------------------------------------------------------------------
   杜虎符 · 专题栏（与皇后之玺同构，青铜错金为强调色）
   -------------------------------------------------------------------------- */
.tiger-section {
  display: grid;
  grid-template-columns: minmax(0, 1.08fr) minmax(440px, .92fr);
  min-height: 0;
  border-bottom: 1px solid var(--line);
  color: var(--ink);
  background:
    linear-gradient(90deg, rgba(226, 216, 194, .78), rgba(226, 216, 194, .94) 48%, rgba(226, 216, 194, .9)),
    var(--qinhan-tiger-art) center / cover no-repeat;
}

.tiger-image-wrap {
  position: relative;
  min-height: min(820px, 82svh);
  overflow: hidden;
  background: #0a0906;
}

.tiger-image-wrap img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center 60%;
  transition: transform .8s cubic-bezier(.2, .7, .2, 1);
}

.tiger-image-wrap:hover img { transform: scale(1.025); }

.tiger-image-wrap p {
  position: absolute;
  inset: auto 1rem 1rem;
  margin: 0;
  padding: .45rem .65rem;
  color: rgba(255, 255, 255, .78);
  background: rgba(0, 0, 0, .74);
  font: .5rem/1.4 var(--mono);
}

.tiger-copy {
  position: relative;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 5.5rem clamp(2.5rem, 5vw, 6rem);
  overflow: hidden;
}

.tiger-number {
  margin-bottom: .8rem;
  color: var(--bronze);
  font: 700 .68rem/1 var(--mono);
  letter-spacing: .16em;
}

.bronze-label {
  align-self: flex-start;
  margin-top: 1rem;
  padding: .38rem .65rem;
  border: 1px solid var(--bronze);
  color: var(--bronze);
  font: 700 .56rem/1 var(--mono);
  letter-spacing: .08em;
}

.tiger-copy h2 {
  position: relative;
  margin: 1.25rem 0 1.5rem;
  font-family: var(--display);
  font-size: clamp(3.4rem, 5.6vw, 5.4rem);
  font-weight: 500;
  letter-spacing: .04em;
  line-height: 1.1;
}

.tiger-copy > p:not(.eyebrow) {
  position: relative;
  margin: 0 0 1.15rem;
  color: #41423d;
  font-family: var(--display);
  font-size: .98rem;
  line-height: 1.95;
  text-align: justify;
  text-indent: 2em;
}

.tiger-copy .tiger-lead {
  color: var(--ink);
  font-size: clamp(1.12rem, 1.4vw, 1.3rem);
  line-height: 1.85;
}

.tiger-meta {
  position: relative;
  display: grid;
  grid-template-columns: 1fr 1fr;
  margin: 1rem 0 0;
  border: 1px solid var(--line);
}

.tiger-meta div {
  padding: .8rem;
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.tiger-meta div:nth-child(2n) { border-right: 0; }
.tiger-meta div:nth-last-child(-n+2) { border-bottom: 0; }
.tiger-meta dt { color: var(--muted); font: .52rem/1 var(--mono); letter-spacing: .1em; }
.tiger-meta dd { margin: .42rem 0 0; font-family: var(--display); font-size: .95rem; }

.tiger-actions {
  position: relative;
  display: flex;
  align-items: stretch;
  gap: .6rem;
  margin-top: 1.2rem;
  flex-wrap: wrap;
}

.tiger-actions button,
.tiger-actions a {
  min-height: 44px;
  padding: .7rem 1rem;
  border: 1px solid var(--ink);
  color: var(--ink);
  background: transparent;
  cursor: pointer;
  font-size: .68rem;
  text-decoration: none;
}

.tiger-actions button {
  color: #fff;
  background: var(--bronze);
  border-color: var(--bronze);
}

.tiger-actions button:hover { background: #8f6b38; }
.tiger-actions a:hover { color: var(--bronze); border-color: var(--bronze); }

@media (max-width: 820px) {
  .tiger-section { grid-template-columns: 1fr; }
  .tiger-image-wrap { min-height: 68svh; }
  .tiger-copy { padding: 4.5rem 1rem; }
  .tiger-copy h2 { font-size: clamp(3.2rem, 15vw, 4.6rem); }
  .tiger-copy > p:not(.eyebrow) { text-align: left; }
}

@media (max-width: 480px) {
  .tiger-meta { grid-template-columns: 1fr; }
  .tiger-meta div,
  .tiger-meta div:nth-child(2n),
  .tiger-meta div:nth-last-child(-n+2) {
    border-right: 0;
    border-bottom: 1px solid var(--line);
  }
  .tiger-actions { flex-direction: column; align-items: stretch; }
  .tiger-actions a { text-align: center; }
}

/* Collection theme: dark lacquer, cinnabar, and aged gold. */
#archive.archive-section {
  --paper: #191816;
  --paper-bright: rgba(38, 33, 26, .92);
  --ink: #f7efe1;
  --muted: rgba(244, 233, 211, .72);
  --red: #a94e3e;
  --green: #b49459;
  --bronze: #d6b471;
  --night: #101311;
  --line: rgba(224, 190, 123, .3);
  --collection-art: url("assets/ui/collection-background.webp");
  color: var(--ink);
  background:
    linear-gradient(180deg, rgba(13, 13, 12, .84), rgba(31, 25, 20, .72) 54%, rgba(10, 13, 12, .92)),
    var(--collection-art) center / cover no-repeat;
}

#archive.archive-section .archive-intro { border-color: var(--line); }
#archive.archive-section .archive-intro > p { color: rgba(244, 233, 211, .78); }
#archive.archive-section .archive-tools { border-color: var(--line); }
#archive.archive-section .search-field { border-color: var(--line); background: rgba(25, 24, 20, .9); }
#archive.archive-section .search-field input { color: var(--ink); }
#archive.archive-section .search-field input::placeholder { color: rgba(244, 233, 211, .52); }
#archive.archive-section .filter-chip { border-color: var(--line); color: var(--muted); }
#archive.archive-section .filter-chip:hover,
#archive.archive-section .filter-chip:focus-visible { border-color: var(--bronze); color: var(--bronze); }
#archive.archive-section .filter-chip.is-active { border-color: var(--bronze); color: var(--night); background: var(--bronze); }
#archive.archive-section .featured-toggle { color: var(--muted); }
#archive.archive-section .object-card {
  border-color: var(--line);
  color: var(--ink);
  background:
    linear-gradient(135deg, rgba(24, 23, 19, .96), rgba(42, 34, 25, .88)),
    var(--collection-art) center / cover no-repeat;
}
#archive.archive-section .object-card:hover,
#archive.archive-section .object-card:focus-within {
  border-color: var(--bronze);
  background:
    linear-gradient(135deg, rgba(39, 31, 23, .94), rgba(57, 43, 28, .84)),
    var(--collection-art) center / cover no-repeat;
}
#archive.archive-section .card-summary { color: rgba(244, 233, 211, .7); }
#archive.archive-section .load-more { border-color: var(--bronze); color: var(--night); background: var(--bronze); }

/* PR40 · shared research record layer; Qin-Han theme remains scoped above. */
#archive.archive-section {
  --record-title: clamp(22px, 1.7vw, 26px);
  --record-meta: 11px;
  --record-copy: 15px;
}

#archive.archive-section .archive-grid {
  grid-template-columns: repeat(4, minmax(0, 1fr));
  grid-auto-rows: 500px;
  gap: 1rem;
}

#archive.archive-section .object-card,
#archive.archive-section .object-card:nth-child(5n + 1),
#archive.archive-section .object-card:nth-child(5n + 2) {
  grid-column: span 1;
  height: 100%;
}

#archive.archive-section .object-card > button {
  grid-template-columns: minmax(0, 1fr);
  grid-template-rows: auto minmax(0, 1fr);
  height: 100%;
}

#archive.archive-section .card-image {
  height: auto;
  aspect-ratio: 16 / 10;
}

#archive.archive-section .card-image img {
  object-fit: contain;
  object-position: center;
}

#archive.archive-section .card-topline,
#archive.archive-section .card-era,
#archive.archive-section .card-metrics,
#archive.archive-section .card-footer {
  font-size: var(--record-meta);
}

#archive.archive-section .card-topline > span:first-child::before {
  color: var(--bronze);
  content: "OBJECT No. ";
}

#archive.archive-section .card-topline > span:nth-child(2)::before,
#archive.archive-section .card-era::before {
  color: var(--bronze);
}

#archive.archive-section .card-topline > span:nth-child(2)::before { content: "TYPE / "; }
#archive.archive-section .card-era::before { content: "DATE / "; }

#archive.archive-section .card-copy h3 {
  font-size: var(--record-title);
  line-height: 1.25;
  white-space: nowrap;
  min-width: 0;
}

#archive.archive-section .card-summary {
  font-size: var(--record-copy);
  line-height: 1.65;
  -webkit-line-clamp: 2;
  line-clamp: 2;
}

#archive.archive-section .card-footer b {
  font-size: 0;
}

#archive.archive-section .card-footer b::after {
  color: var(--green);
  content: "OPEN RECORD ↗";
  font-size: var(--record-meta);
  letter-spacing: .08em;
}

@media (max-width: 1120px) {
  #archive.archive-section .archive-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 760px) {
  #archive.archive-section .archive-grid {
    grid-template-columns: minmax(0, 1fr);
    grid-auto-rows: 456px;
  }

  #archive.archive-section .object-card,
  #archive.archive-section .object-card:nth-child(5n + 1),
  #archive.archive-section .object-card:nth-child(5n + 2) {
    grid-column: auto;
  }

  #archive.archive-section .object-card > button { grid-template-columns: minmax(0, 1fr); }
  #archive.archive-section .card-image { aspect-ratio: 16 / 9; }
  #archive.archive-section .card-copy { min-height: 0; padding: 1rem .95rem .9rem; }
  #archive.archive-section .card-copy h3 { font-size: 22px; }
  #archive.archive-section .card-summary { font-size: 14px; }
}

@media (prefers-reduced-motion: reduce) {
  #archive.archive-section .object-card,
  #archive.archive-section .card-image img { transition: none; }
}

/* PR41 · detail research layer; Imperial Archive remains black-gold. */
.archive-dialog .dialog-content {
  position: relative;
  padding: clamp(3.4rem, 5vw, 4.8rem) clamp(2.2rem, 4vw, 4.5rem) 3rem;
  background:
    linear-gradient(180deg, rgba(29, 36, 32, .98), rgba(21, 26, 24, .99)),
    var(--qinhan-detail-art) center / cover no-repeat;
}
.archive-dialog .dialog-content::before {
  display: block;
  margin-bottom: 1.8rem;
  padding-bottom: .8rem;
  border-bottom: 1px solid rgba(213, 180, 119, .34);
  color: #d5b477;
  content: "OBJECT RECORD / IMPERIAL ARCHIVE";
  font: 700 .5rem/1.4 var(--mono);
  letter-spacing: .16em;
}
.archive-dialog .dialog-kicker {
  display: flex;
  flex-wrap: wrap;
  gap: .3rem .55rem;
  align-items: baseline;
  color: rgba(255, 255, 255, .58);
}
.archive-dialog .dialog-kicker::before {
  color: #d5b477;
  content: "RECORD /";
}
.archive-dialog .dialog-header h2 {
  max-width: 13ch;
  margin-top: .2rem;
  color: #fff8eb;
  letter-spacing: -.045em;
}
.archive-dialog .dialog-summary {
  max-width: 31rem;
  margin-top: 1.35rem;
  padding: .15rem 0 .15rem 1rem;
  border-left: 2px solid #a77c45;
  color: rgba(255, 255, 255, .72);
  text-align: left;
  text-indent: 0;
}
.archive-dialog .dialog-meta {
  gap: 0;
  margin: 1.8rem 0 2rem;
  border: 1px solid rgba(255, 255, 255, .16);
  background: rgba(5, 6, 5, .2);
}
.archive-dialog .dialog-meta div {
  min-height: 4.5rem;
  padding: .85rem .9rem;
  border-color: rgba(255, 255, 255, .14);
}
.archive-dialog .dialog-meta span {
  display: flex;
  flex-wrap: wrap;
  gap: .2rem .35rem;
  align-items: baseline;
  color: rgba(255, 255, 255, .46);
}
.archive-dialog .dialog-meta span::before {
  color: #d5b477;
}
.archive-dialog .dialog-meta div:nth-child(1) span::before { content: "SEQUENCE /"; }
.archive-dialog .dialog-meta div:nth-child(2) span::before { content: "PRIMARY VIEW /"; }
.archive-dialog .dialog-meta div:nth-child(3) span::before { content: "PROCESSING /"; }
.archive-dialog .dialog-meta div:nth-child(4) span::before { content: "SOURCE /"; }
.archive-dialog .dialog-meta div:nth-child(5) span::before { content: "PRESERVATION /"; }
.archive-dialog .dialog-section,
.archive-dialog .dialog-sources {
  border-color: rgba(255, 255, 255, .18);
}
.archive-dialog .dialog-section h3::before {
  margin-right: .45rem;
  color: #d5b477;
  content: "CONTEXT /";
  font: 700 .5rem/1 var(--mono);
  letter-spacing: .12em;
}
.archive-dialog .dialog-sources h3::before {
  margin-right: .45rem;
  color: #d5b477;
  content: "SOURCES /";
  font: 700 .5rem/1 var(--mono);
  letter-spacing: .12em;
}
.archive-dialog .evidence-section {
  border-color: rgba(167, 124, 69, .55);
  background: rgba(167, 124, 69, .09);
}

@media (max-width: 820px) {
  .archive-dialog .dialog-content {
    padding: 3rem 1rem 2.2rem;
  }
  .archive-dialog .dialog-content::before { margin-bottom: 1.35rem; }
  .archive-dialog .dialog-summary { font-size: 1rem; }
}

@media (max-width: 480px) {
  .archive-dialog .dialog-meta div { min-height: 0; }
  .archive-dialog .dialog-header h2 { max-width: none; }
}

/* PR42 · detail controls keep Imperial Archive's black-gold language. */
.archive-dialog .dialog-close {
  display: grid;
  min-width: 44px;
  min-height: 44px;
  place-items: center;
  line-height: 1;
  touch-action: manipulation;
}
.archive-dialog .dialog-close:focus-visible {
  outline: 2px solid #d5b477;
  outline-offset: 2px;
}

/* PR43 · artifact archive fields extend the black-gold record without replacing photo metadata. */
.archive-dialog .detail-archive-fields {
  margin-top: 1.35rem;
  padding-top: 1rem;
  border-top: 1px solid rgba(255, 255, 255, .18);
}
.archive-dialog .detail-archive-heading {
  display: flex;
  flex-wrap: wrap;
  gap: .35rem .55rem;
  align-items: baseline;
  margin: 0 0 .8rem;
  color: #d5b477;
  font: 700 .55rem/1.4 var(--mono);
  letter-spacing: .14em;
}
.archive-dialog .detail-archive-heading small {
  color: rgba(255, 255, 255, .46);
  font: 400 .58rem/1.4 var(--sans);
  letter-spacing: .08em;
}
.archive-dialog .detail-archive-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  border-top: 1px solid rgba(255, 255, 255, .14);
  border-left: 1px solid rgba(255, 255, 255, .14);
}
.archive-dialog .detail-archive-field {
  min-width: 0;
  min-height: 3.75rem;
  padding: .7rem .75rem;
  border-right: 1px solid rgba(255, 255, 255, .14);
  border-bottom: 1px solid rgba(255, 255, 255, .14);
}
.archive-dialog .detail-archive-label {
  display: flex;
  flex-wrap: wrap;
  gap: .2rem .35rem;
  align-items: baseline;
  color: rgba(255, 255, 255, .46);
  font: .47rem/1.3 var(--mono);
  letter-spacing: .04em;
}
.archive-dialog .detail-archive-label::before { color: #d5b477; }
.archive-dialog .detail-archive-field:nth-child(1) .detail-archive-label::before { content: "OBJECT NO. /"; }
.archive-dialog .detail-archive-field:nth-child(2) .detail-archive-label::before { content: "CATEGORY /"; }
.archive-dialog .detail-archive-field:nth-child(3) .detail-archive-label::before { content: "PERIOD /"; }
.archive-dialog .detail-archive-field:nth-child(4) .detail-archive-label::before { content: "MATERIAL /"; }
.archive-dialog .detail-archive-field:nth-child(5) .detail-archive-label::before { content: "FINDSPOT /"; }
.archive-dialog .detail-archive-field:nth-child(6) .detail-archive-label::before { content: "DIMENSIONS /"; }
.archive-dialog .detail-archive-value {
  display: block;
  margin-top: .4rem;
  color: rgba(255, 255, 255, .82);
  font-size: .63rem;
  line-height: 1.55;
  overflow-wrap: anywhere;
}
.archive-dialog .detail-archive-value.is-pending {
  color: rgba(255, 255, 255, .36);
  font-style: italic;
}

@media (max-width: 480px) {
  .archive-dialog .detail-archive-grid { grid-template-columns: 1fr; }
  .archive-dialog .detail-archive-field { min-height: 0; }
}

/* Generated Qin-Han art belongs on the visible card and dialog surfaces. */
#archive.archive-section .card-copy,
#archive.archive-section .object-card:hover .card-copy,
#archive.archive-section .object-card:focus-within .card-copy {
  background:
    linear-gradient(135deg, rgba(20, 19, 16, .56), rgba(32, 25, 19, .68)),
    url("assets/ui/card-interior-qinhan-collage-v2.webp") center / cover no-repeat;
}

#archive.archive-section .object-card:hover .card-copy,
#archive.archive-section .object-card:focus-within .card-copy {
  background:
    linear-gradient(135deg, rgba(20, 19, 16, .48), rgba(32, 25, 19, .6)),
    url("assets/ui/card-interior-qinhan-collage-v2.webp") center / cover no-repeat;
}

#archive.archive-section .object-card:nth-child(3n + 1) .card-copy { background-position: center, 12% center; }
#archive.archive-section .object-card:nth-child(3n + 2) .card-copy { background-position: center, 50% center; }
#archive.archive-section .object-card:nth-child(3n) .card-copy { background-position: center, 88% center; }

.archive-dialog .dialog-media {
  background:
    linear-gradient(rgba(5, 6, 5, .48), rgba(5, 6, 5, .64)),
    url("assets/ui/card-interior-qinhan-collage-v2.webp") center / cover no-repeat;
}

.archive-dialog .dialog-content {
  background:
    linear-gradient(180deg, rgba(21, 26, 24, .64), rgba(17, 21, 19, .74)),
    url("assets/ui/card-interior-qinhan-collage-v2.webp") center / cover no-repeat;
}

.archive-dialog .view-switch,
.archive-dialog .thumbnail-strip {
  background: rgba(21, 26, 24, .78);
}