/* 风格 7 · 展签 Museum Label
   近白底 + 深灰字；人文无衬线；展品墙 + 窄说明卡；无线无框，靠留白。
   动效很慢：fade-up 1.1s，图片 1.02→1。 */
html[data-style="label"] {
  --wall: #fbfbfa;
  --ink: #232327;
  --muted: #5f5f65;
  --faint: #6b6b70;   /* 5.1:1 on #fbfbfa (color_tools.py); was #8a8a8f = 3.3:1 */
  --hair: #e6e6e2;
  --sans: "Source Sans 3 Variable", Optima, "Avenir Next", Seravek, Candara, "Gill Sans Nova", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  --mono: ui-monospace, "SF Mono", Menlo, Consolas, monospace;
  color-scheme: light;
  background: var(--wall);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 15.5px;
  line-height: 1.75;
}
html[data-style="label"] body { background: var(--wall); }
html[data-style="label"] ::selection { background: var(--ink); color: var(--wall); }

.ml-museum { max-width: 1080px; margin: 0 auto; padding: 0 clamp(20px, 5vw, 64px) 180px; }

/* ---- 顶栏 ---- */
.ml-top { display: flex; flex-wrap: wrap; gap: 12px 26px; justify-content: space-between; align-items: baseline; padding: 28px 0; }
.ml-word { font-size: 13px; letter-spacing: .5em; }
.ml-top nav { display: flex; gap: 26px; font-size: 13px; }
.ml-top a { color: var(--muted); text-decoration: none; letter-spacing: .1em; white-space: nowrap; }   /* 窄屏不要一字一行 */
.ml-top a:hover { color: var(--ink); }

/* ---- 展厅导览：楼层导览式的小字列，当前展厅加细下划线 ---- */
.ml-guide {
  display: flex; flex-wrap: wrap; align-items: baseline; gap: 2px 0;
  padding: 0 0 24px; margin-top: -8px;
  border-bottom: 1px solid var(--hair);
}
.ml-guide-label { font-size: 11px; letter-spacing: .3em; color: var(--faint); margin-right: 18px; }
.ml-g {
  position: relative; padding: 4px 11px;
  font-size: 12.5px; letter-spacing: .08em; color: var(--muted); text-decoration: none;
}
.ml-g b { font-family: var(--mono); font-weight: 400; font-size: 10px; color: var(--faint); margin-right: 6px; }
.ml-g:hover { color: var(--ink); }
.ml-g[aria-current="page"] { color: var(--ink); }
.ml-g[aria-current="page"] b { color: var(--ink); }
.ml-g[aria-current="page"]::after {
  content: ""; position: absolute; left: 11px; right: 11px; bottom: 1px;
  height: 1px; background: var(--ink);
}

/* ---- 门厅 ---- */
.ml-lobby { padding: clamp(60px, 12vh, 140px) 0 clamp(48px, 9vh, 110px); max-width: 620px; }
.ml-eyebrow { font-size: 12px; letter-spacing: .35em; color: var(--faint); margin: 0 0 22px; }
.ml-lobby h1 { font-size: clamp(2.6rem, 1.8rem + 3.6vw, 4.4rem); font-weight: 400; letter-spacing: .02em; line-height: 1.15; margin: 0 0 18px; }
.ml-dates { color: var(--faint); font-size: 13px; letter-spacing: .12em; margin: 0 0 30px; }
.ml-intro { color: var(--muted); max-width: 52ch; margin: 0 0 40px; }
.ml-stats { display: flex; gap: 34px; flex-wrap: wrap; }
.ml-stats span { font-size: 12.5px; color: var(--faint); letter-spacing: .06em; display: flex; flex-direction: column; gap: 2px; }
.ml-stats b { font-size: 30px; font-weight: 400; color: var(--ink); font-variant-numeric: tabular-nums; letter-spacing: 0; }

/* ---- 展览前言（方案板） ---- */
.ml-preface { max-width: 620px; padding: 0 0 40px; }
.ml-preface h2 { font-size: 13px; letter-spacing: .35em; font-weight: 400; color: var(--faint); margin: 0 0 14px; }
.ml-preface-name { font-size: 17px; margin: 0 0 10px; }
.ml-preface p { color: var(--muted); margin: 0 0 14px; }
.ml-preface dl { margin: 0 0 14px; }
.ml-preface dl div { display: flex; gap: 18px; font-size: 13.5px; padding: 3px 0; }
.ml-preface dt { color: var(--faint); flex: 0 0 3.4em; }
.ml-preface dd { margin: 0; }
.ml-risk { font-size: 13.5px; }

/* ---- 检索 ---- */
.ml-rooms { padding: 30px 0 0; border-top: 1px solid var(--hair); }
.ml-tools { display: flex; justify-content: space-between; gap: 18px; flex-wrap: wrap; align-items: center; padding: 22px 0 10px; }
.ml-search { display: flex; align-items: baseline; gap: 12px; flex: 1 1 320px; min-width: 0; }
.ml-search span { font-size: 13px; color: var(--faint); letter-spacing: .2em; }
.ml-search input { flex: 1; border: 0; border-bottom: 1px solid var(--hair); background: none; padding: 8px 2px; color: var(--ink); font-size: 15px; }
.ml-search input:focus { outline: none; border-bottom-color: var(--ink); }
.ml-search input::placeholder { color: var(--faint); }
.ml-filters { display: flex; gap: 10px; flex-wrap: wrap; }
.ml-filters select, #ml-reset {
  border: 0; border-bottom: 1px solid var(--hair); background: none; color: var(--ink);
  padding: 8px 2px; font-size: 13px; border-radius: 0;
}
#ml-reset:hover { border-bottom-color: var(--ink); }

/* ---- 展厅导览 ---- */
.ml-roomlist { list-style: none; margin: 30px 0 0; padding: 0; }
.ml-roomlist li { border-top: 1px solid var(--hair); }
.ml-roomlist li:last-child { border-bottom: 1px solid var(--hair); }
.ml-roomlist button {
  display: grid; grid-template-columns: 110px 200px minmax(0, 1fr) 80px; gap: 24px; align-items: baseline;
  width: 100%; background: none; border: 0; padding: 22px 4px; text-align: left;
}
.ml-room-no { font-size: 12px; color: var(--faint); letter-spacing: .15em; }
.ml-room-name { font-size: 19px; letter-spacing: .04em; }
.ml-room-blurb { color: var(--muted); font-size: 13px; }
.ml-room-count { font-family: var(--mono); font-size: 12px; color: var(--faint); text-align: right; }
.ml-roomlist button:hover .ml-room-name { text-decoration: underline; text-underline-offset: 6px; text-decoration-thickness: 1px; }
.ml-roomlist button:hover { background: #f4f4f1; }

/* ---- 展品 ---- */
.ml-sec { padding-top: 40px; }
.ml-sec > header { max-width: 620px; margin-bottom: 30px; }
.ml-sec > header h4 { font-size: 21px; font-weight: 400; letter-spacing: .05em; margin: 0 0 6px; }
.ml-sec > header p { margin: 0; color: var(--faint); font-size: 13px; }
.ml-exhibit { margin: 0 0 clamp(48px, 8vh, 90px); }
.ml-frame { display: block; background: #fff; padding: clamp(10px, 2vw, 18px); box-shadow: 0 1px 2px rgb(35 35 39 / .06), 0 12px 40px rgb(35 35 39 / .08); }
.ml-frame img { width: 100%; aspect-ratio: 8/5; object-fit: cover; object-position: top center; }
.ml-label { max-width: 380px; margin: 16px 0 0 auto; padding: 0 4px; }
.ml-l-name { font-size: 15px; margin: 0 0 4px; letter-spacing: .02em; display: flex; gap: 10px; align-items: baseline; }
.ml-l-name a { text-decoration: none; }
.ml-l-name a:hover { text-decoration: underline; text-underline-offset: 4px; }
.ml-l-lang { font-size: 11px; color: var(--faint); letter-spacing: .1em; }
.ml-l-desc { font-size: 13px; color: var(--muted); margin: 0 0 6px; }
.ml-l-meta { font-size: 11.5px; color: var(--faint); margin: 0; letter-spacing: .04em; }
.ml-text { max-width: 620px; }
.ml-text .ml-label { margin: 0 auto 0 0; padding: 14px 0; border-top: 1px solid var(--hair); max-width: 480px; }

.ml-dhead { padding: 30px 0 10px; }
.ml-dhead h3 { font-size: 26px; font-weight: 400; letter-spacing: .06em; margin: 10px 0 4px; }
.ml-dhead p { color: var(--faint); font-size: 13px; margin: 0; }
.ml-back { border: 0; background: none; color: var(--muted); font-size: 13px; letter-spacing: .1em; padding: 0; }
.ml-back:hover { color: var(--ink); text-decoration: underline; text-underline-offset: 4px; }
.ml-count { color: var(--faint); font-size: 13px; margin: 20px 0 0; }
.ml-empty { padding: 60px 0; }
.ml-empty button { border: 0; border-bottom: 1px solid var(--ink); background: none; padding: 2px; font-size: 14px; }

/* ---- 套件 / 版权页 ---- */
.ml-suite { padding-top: 60px; border-top: 1px solid var(--hair); }
.ml-suite h2 { font-size: 21px; font-weight: 400; letter-spacing: .04em; margin: 0 0 8px; }
.ml-suite-lede { color: var(--muted); font-size: 14px; max-width: 52ch; margin: 0 0 30px; }
.ml-suite ol { list-style: none; margin: 0; padding: 0; }
.ml-suite li { display: grid; grid-template-columns: 48px minmax(0, 260px) minmax(0, 1fr); gap: 6px 22px; padding: 16px 0; border-top: 1px solid var(--hair); align-items: baseline; }
.ml-sk-no { font-family: var(--mono); font-size: 12px; color: var(--faint); }
.ml-suite code { font-family: var(--mono); font-size: 13px; }
.ml-suite a { text-decoration: none; }
.ml-suite a:hover code { text-decoration: underline; text-underline-offset: 4px; }
.ml-suite p { margin: 0; color: var(--muted); font-size: 13px; }

.ml-colophon { display: grid; grid-template-columns: 1.2fr 1fr 1fr; gap: 48px; padding-top: 60px; margin-top: 20px; border-top: 1px solid var(--hair); }
.ml-col h2 { font-size: 13px; letter-spacing: .3em; font-weight: 400; color: var(--faint); margin: 0 0 16px; }
.ml-col pre { font-family: var(--mono); font-size: 12px; line-height: 1.8; overflow-x: auto; margin: 0; color: var(--muted); }
.ml-col ul { margin: 0; padding-left: 1.2em; color: var(--muted); font-size: 13.5px; }
.ml-col li { margin-bottom: 10px; }
.ml-col dl { margin: 0; font-size: 13.5px; }
.ml-col dt { margin-top: 14px; }
.ml-col dt:first-child { margin-top: 0; }
.ml-col dd { margin: 4px 0 0; color: var(--muted); }

.ml-foot { display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap; margin-top: 80px; padding-top: 18px; border-top: 1px solid var(--hair); font-size: 12px; color: var(--faint); letter-spacing: .06em; }
.ml-foot a { color: var(--muted); }

/* ---- 凝视动效 ---- */
.ml-gaze { opacity: 0; transform: translateY(26px); }
.ml-gaze.ml-seen { opacity: 1; transform: none; transition: opacity 1.1s ease, transform 1.1s cubic-bezier(.2, .7, .2, 1); }
.ml-frame img { opacity: 0; transform: scale(1.02); }
.ml-seen .ml-frame img, img[src].ml-loaded { opacity: 1; transform: none; transition: opacity 1.2s ease .1s, transform 1.4s cubic-bezier(.2, .7, .2, 1) .1s; }
@media (prefers-reduced-motion: reduce) {
  .ml-gaze { opacity: 1; transform: none; }
  .ml-frame img { opacity: 1; transform: none; }
}

/* ---- 响应式 ---- */
@media (max-width: 860px) {
  .ml-roomlist button { grid-template-columns: 90px 1fr 64px; }
  .ml-room-blurb { display: none; }
  .ml-colophon { grid-template-columns: 1fr; }
  .ml-suite li { grid-template-columns: 40px minmax(0, 1fr); }
  .ml-suite p { grid-column: 2; }
  .ml-label { max-width: none; }
}