:root{--ink:#173027;--paper:#f5f1e9;--line:rgba(23,48,39,.18);--accent:#c8db44;--muted:#5c6860}*{box-sizing:border-box}body{margin:0;background:var(--paper);color:var(--ink);font:15px/1.55 Arial,'Microsoft YaHei',sans-serif}.catalogue-header{height:72px;padding:0 6vw;display:flex;justify-content:space-between;align-items:center;border-bottom:1px solid var(--line);position:sticky;top:0;background:rgba(245,241,233,.96);z-index:2}.brand{font-weight:800;letter-spacing:1px;color:var(--ink);text-decoration:none}.inquiry-link{color:var(--ink);font-size:13px;font-weight:700}.catalogue-hero{padding:76px 6vw 44px;background:var(--ink);color:#fff}.catalogue-hero p{margin:0;color:var(--accent);font-size:11px;letter-spacing:1.5px}.catalogue-hero h1{font:600 clamp(42px,6vw,76px)/1.1 Georgia,'Songti SC',serif;margin:15px 0}.catalogue-hero div{max-width:720px;color:#d5ded7}.library{padding:42px 6vw 80px}.filters{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:12px}.filters button{padding:10px 13px;border:1px solid var(--line);background:transparent;color:var(--ink);font:600 12px Arial,'Microsoft YaHei',sans-serif;cursor:pointer}.filters button.active{background:var(--ink);border-color:var(--ink);color:#fff}.filters-secondary{padding-bottom:20px;border-bottom:1px solid var(--line)}.result-note{font-size:13px;color:var(--muted)}.product-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:18px}.product-card{padding:14px;background:#fff;border:1px solid rgba(23,48,39,.1);display:flex;flex-direction:column;gap:14px}.product-image{height:210px;display:flex;align-items:center;justify-content:center;background:#eeeae3;padding:8px;overflow:hidden}.product-image img{display:block;width:auto;height:auto;max-width:100%;max-height:100%;object-fit:contain}.product-card h2{margin:5px 0;font:600 17px/1.25 Georgia,'Songti SC',serif}.product-meta{margin:0;color:#71800d;font-size:10px;letter-spacing:.2px}.product-summary{margin:0 0 12px;color:var(--muted);font-size:12px}.product-card a{color:var(--ink);font-size:12px;font-weight:700}#load-more{display:block;margin:34px auto 0;padding:13px 19px;border:0;background:var(--ink);color:#fff;font-weight:700;cursor:pointer}@media(max-width:900px){.product-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}@media(max-width:560px){.catalogue-header{padding:0 5vw}.catalogue-hero,.library{padding-left:5vw;padding-right:5vw}.product-grid{grid-template-columns:1fr}.product-image{height:250px}}
.product-actions{display:flex;flex-wrap:wrap;gap:12px}.product-actions .inquiry-link,.detail-link,.detail-inquiry{color:var(--ink);font-size:12px;font-weight:700}.detail-link{border-bottom:1px solid currentColor;text-decoration:none}.product-actions .inquiry-link{white-space:nowrap}#catalogue-detail-dialog{width:min(680px,calc(100vw - 32px));border:0;padding:24px;background:var(--paper);color:var(--ink)}#catalogue-detail-dialog::backdrop{background:rgba(23,48,39,.62)}#catalogue-detail-dialog img{display:block;width:auto;height:auto;max-width:100%;max-height:55vh;object-fit:contain;margin:0 auto 20px;background:#eeeae3}.detail-close{display:block;margin-left:auto;border:1px solid var(--line);background:transparent;padding:7px 10px;color:var(--ink);cursor:pointer}.detail-meta{color:#71800d;font-size:11px}.detail-inquiry{display:inline-block;margin-top:8px}.texture-swatches,.detail-swatches{display:flex;flex-wrap:wrap;gap:7px;margin:12px 0}.texture-swatches img,.detail-swatches img{width:38px;height:38px;object-fit:contain;border:1px solid var(--line);background:#eeeae3}.detail-swatches img{width:54px;height:54px}
.texture-swatches img{object-fit:cover;border-color:transparent;background:transparent}.texture-swatches img.is-primary{border-color:var(--ink)}.more-swatches{min-width:38px;align-self:center;color:var(--ink);font:600 22px/1 Georgia,'Songti SC',serif;text-align:center}
.product-image-link{display:flex;text-decoration:none}.texture-swatches a{display:block;line-height:0}.texture-swatches a:focus-visible,.more-swatches:focus-visible{outline:2px solid var(--ink);outline-offset:3px}
.product-detail{padding:42px 6vw 80px}.product-detail-back{display:inline-block;margin-bottom:24px;color:var(--ink);font-size:12px;font-weight:700}.product-detail-layout{display:grid;grid-template-columns:minmax(0,1fr) minmax(280px,.7fr);gap:32px;align-items:start}.product-detail-image{min-height:min(66vw,580px);display:flex;align-items:center;justify-content:center;padding:18px;background:#eeeae3}.product-detail-image img{display:block;max-width:100%;max-height:540px;width:auto;height:auto;object-fit:contain}.product-detail-meta{margin:0;color:#71800d;font-size:12px}.product-detail h1{margin:8px 0 24px;font:600 clamp(30px,4vw,52px)/1.08 Georgia,'Songti SC',serif}.variant-swatch-grid{display:flex;flex-wrap:wrap;gap:12px;margin:18px 0 28px}.variant-swatch{display:block;padding:3px;color:var(--ink);font-size:10px;text-decoration:none}.variant-swatch img{display:block;width:62px;height:62px;object-fit:cover;background:#eeeae3}.variant-swatch span{display:block;width:62px;margin-top:5px;text-align:center;overflow-wrap:anywhere}.variant-swatch.is-selected{outline:2px solid var(--ink);outline-offset:3px}.product-detail-actions{display:flex;flex-wrap:wrap;gap:16px}.product-detail-actions a{color:var(--ink);font-size:13px;font-weight:700}.product-detail-actions .detail-link{border-bottom:1px solid currentColor}@media(max-width:700px){.product-detail{padding-left:5vw;padding-right:5vw}.product-detail-layout{grid-template-columns:1fr}.product-detail-image{min-height:0}.product-detail-image img{max-height:none}.variant-swatch-grid{gap:9px}}
.product-image img{border:1px solid rgba(23,48,39,.22)}
.product-detail-image img{width:360px}
.filters-tertiary{margin-top:4px;padding-bottom:20px;border-bottom:1px solid var(--line)}
.art-series-card .product-image img,.art-texture-card .product-image img{width:auto;height:100%;max-width:100%;max-height:100%;aspect-ratio:1 / 1;object-fit:cover}
.art-texture-detail-visual{width:min(100%,560px);height:auto;aspect-ratio:1 / 1;margin:12px auto 22px}
.art-texture-detail-visual img{width:100%;height:100%;max-height:none;margin:0;object-fit:cover}
body.is-coatings{--ink:#182b5b;--muted:#536078;--line:rgba(24,43,91,.18);--accent:#667187}
body.is-coatings .catalogue-hero{min-height:190px;padding-block:36px 30px;background:#182b5b}
body.is-coatings .catalogue-hero p{color:#fff}
body.is-coatings .catalogue-hero div{color:#e8ebf2}
body.is-coatings .library{padding-top:24px}
.coatings-nav-scroll{flex-wrap:nowrap;overflow-x:auto;scrollbar-width:thin;padding-bottom:10px}
.coatings-nav-scroll button{flex:0 0 auto;min-height:44px}
.coating-search-region{display:grid;grid-template-columns:minmax(190px,280px) minmax(260px,560px);gap:16px;align-items:end;margin:20px 0}
.coating-search-region[hidden]{display:none}
.coating-search-region label{color:var(--ink);font-size:13px;font-weight:700}
.coating-search-control{display:flex;border-bottom:1px solid var(--line)}
.coating-search-control input{width:100%;min-height:44px;border:0;outline:0;background:transparent;color:var(--ink);font:inherit}
.coating-search-control input:focus-visible{box-shadow:inset 0 -2px 0 var(--ink)}
.coating-search-control button,.catalogue-empty-state button{min-height:44px;border:0;background:transparent;color:var(--ink);font:700 12px/1 Arial,'Microsoft YaHei',sans-serif;cursor:pointer;white-space:nowrap}
.coating-search-control button:focus-visible,.catalogue-empty-state button:focus-visible{outline:2px solid var(--ink);outline-offset:2px}
.catalogue-empty-state{grid-column:1/-1;padding:56px 24px;text-align:center;border:1px solid var(--line)}
.catalogue-empty-state p{margin:0 0 12px;color:var(--muted)}
@media(max-width:700px){.coating-search-region{grid-template-columns:1fr}.coatings-nav-scroll{margin-right:-5vw;padding-right:5vw}}
.coating-product-card{padding:12px;gap:12px}
.coating-product-card .product-image{height:auto;aspect-ratio:1 / 1;padding:10px}
.coating-product-card .product-image img{width:100%;height:100%;max-width:100%;max-height:100%;object-fit:contain}
.coating-product-card h2{font-size:18px;text-wrap:pretty}
.coating-product-card .product-actions{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:10px;align-items:start}
.coating-product-card .product-actions a{line-height:1.35;text-wrap:balance}
.coating-product-card .product-actions .inquiry-link{grid-column:1/-1;white-space:normal}
@media(max-width:420px){.coating-product-card .product-actions{grid-template-columns:1fr 1fr}.coating-product-card .product-actions .inquiry-link{grid-column:1/-1}}
body.is-coating-product{--ink:#182b5b;--muted:#536078;--line:rgba(24,43,91,.18);--accent:#667187}
.coating-product-detail{max-width:1600px;margin:0 auto}
.coating-detail-layout{display:grid;grid-template-columns:minmax(0,1.38fr) minmax(320px,1fr);gap:48px;align-items:start}
.coating-detail-gallery-main{position:relative;aspect-ratio:1 / 1;display:grid;place-items:center;overflow:hidden;background:#eeeae3;padding:18px}
.coating-detail-gallery-main img{display:block;max-width:100%;max-height:100%;width:auto;height:auto;object-fit:contain}
.coating-detail-texture-main img{width:100%;height:100%;object-fit:cover}
.coating-detail-gallery-main .coating-effect-label{position:absolute;right:14px;bottom:14px;padding:6px 9px;background:rgba(24,43,91,.9);color:#fff;font-size:11px;font-weight:700}
.coating-detail-thumbnails{display:flex;gap:10px;overflow-x:auto;padding:12px 2px}
.coating-detail-thumbnails button,.coating-detail-thumbnails a{flex:0 0 72px;width:72px;height:72px;padding:3px;border:1px solid var(--line);background:#fff;cursor:pointer}
.coating-detail-thumbnails button[aria-current="true"],.coating-detail-thumbnails a[aria-current="true"]{outline:2px solid var(--ink);outline-offset:2px}
.coating-detail-thumbnails img{display:block;width:100%;height:100%;object-fit:cover}
.coating-detail-summary{position:sticky;top:96px;padding-top:8px}
.coating-detail-summary h1{max-width:12ch;text-wrap:balance}
.coating-detail-description{max-width:52ch;color:var(--muted);text-wrap:pretty}
.coating-detail-actions{display:grid;gap:10px;margin-top:28px}
.coating-detail-actions a{min-height:44px;display:flex;align-items:center;justify-content:center;padding:10px 16px;border:1px solid var(--ink);color:var(--ink);font-size:13px;font-weight:700;text-decoration:none;text-align:center}
.coating-detail-actions .coating-action-primary{background:var(--ink);color:#fff}
.coating-detail-actions a:focus-visible,.coating-detail-thumbnails a:focus-visible,.coating-detail-thumbnails button:focus-visible{outline:3px solid #667187;outline-offset:3px}
.coating-detail-specifications{margin-top:48px;display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.coating-spec-group{border-top:2px solid var(--ink);padding-top:16px}
.coating-spec-group h2{margin:0 0 14px;font:600 20px/1.2 Georgia,'Songti SC',serif}
.coating-spec-group dl{margin:0}
.coating-spec-row{display:grid;grid-template-columns:minmax(110px,.8fr) minmax(0,1.2fr);gap:12px;padding:10px 0;border-top:1px solid var(--line)}
.coating-spec-row dt{font-size:12px;font-weight:700;color:var(--muted)}
.coating-spec-row dd{margin:0;font-size:13px;overflow-wrap:anywhere}
.coating-product-detail>.coating-detail-boundary{max-width:900px;margin:34px 0 0;color:var(--muted);font-size:12px}
.coating-detail-unavailable{margin:80px 0 20px;font:600 28px/1.2 Georgia,'Songti SC',serif}
@media(max-width:900px){.coating-detail-layout{grid-template-columns:minmax(0,1fr) minmax(280px,.85fr);gap:28px}.coating-detail-specifications{grid-template-columns:1fr 1fr}.coating-spec-group[data-spec-group="performance"]{grid-column:1/-1}}
@media(max-width:780px){.coating-detail-layout,.coating-detail-specifications{grid-template-columns:1fr}.coating-detail-summary{position:static}.coating-spec-group[data-spec-group="performance"]{grid-column:auto}}

/* 2026-09-15 preserve-mode catalogue polish */
:root {
  --ink: #182b5b;
  --ink-soft: #43506a;
  --paper: #f5f1e9;
  --line: rgba(24, 43, 91, .18);
  --accent: #667187;
  --muted: #536078;
  --surface: #fff;
  --surface-muted: #ebe8e1;
  --motion-fast: 140ms;
  --motion-medium: 180ms;
  --motion-slow: 220ms;
}

body {
  font-family: Manrope, "Microsoft YaHei", "PingFang SC", sans-serif;
  color: var(--ink);
}

.catalogue-header {
  height: 76px;
  background: rgba(245, 241, 233, .97);
  backdrop-filter: blur(14px);
  z-index: 10;
}

.brand {
  font-size: 22px;
  letter-spacing: .08em;
}

.catalogue-header .inquiry-link {
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  text-decoration: none;
}

.icon-link::after {
  content: "";
  width: 9px;
  height: 9px;
  margin-left: 9px;
  border-top: 1.5px solid currentColor;
  border-right: 1.5px solid currentColor;
  transform: translateY(1px);
}

.back-link::before,
.product-detail-back::before {
  content: "";
  width: 8px;
  height: 8px;
  margin-right: 9px;
  border-left: 1.5px solid currentColor;
  border-bottom: 1.5px solid currentColor;
  transform: rotate(45deg);
}

.catalogue-hero h1,
.product-card h2,
.product-detail h1,
.coating-spec-group h2,
.catalogue-support h2 {
  font-family: "Noto Serif SC", "Songti SC", Georgia, serif;
}

.catalogue-hero p,
.product-meta,
.detail-meta,
.product-detail-meta {
  color: var(--accent);
}

.library {
  padding-top: 32px;
}

.filters {
  flex-wrap: nowrap;
  gap: 8px;
  overflow-x: auto;
  padding: 2px 2px 10px;
  scrollbar-width: thin;
  overscroll-behavior-inline: contain;
}

.filters button {
  flex: 0 0 auto;
  border-color: var(--line);
  font-family: Manrope, "Microsoft YaHei", sans-serif;
  transition: color var(--motion-fast) ease, background-color var(--motion-fast) ease, border-color var(--motion-fast) ease;
}

#family-filters button { min-height: 46px; padding-inline: 18px; font-size: 13px; }
#collection-filters button { min-height: 42px; padding-inline: 15px; }
#series-filters button { min-height: 40px; padding-inline: 14px; }

.filters-secondary {
  position: sticky;
  top: 76px;
  z-index: 5;
  margin-inline: -6vw;
  padding: 10px 6vw 12px;
  background: rgba(245, 241, 233, .97);
  backdrop-filter: blur(14px);
}

.filters-tertiary {
  position: sticky;
  top: 141px;
  z-index: 4;
  margin-inline: -6vw;
  padding: 8px 6vw 12px;
  background: rgba(245, 241, 233, .97);
  backdrop-filter: blur(14px);
}

.result-note {
  margin: 22px 0 18px;
  font-size: 13px;
}

.product-grid {
  gap: 24px;
}

.product-card {
  padding: 16px;
  gap: 16px;
  border-color: rgba(24, 43, 91, .12);
  transition: border-color var(--motion-medium) ease, transform var(--motion-medium) ease, box-shadow var(--motion-medium) ease;
  animation: catalogue-card-in var(--motion-slow) ease both;
}

.product-card:hover {
  border-color: rgba(24, 43, 91, .32);
  box-shadow: 0 14px 34px rgba(24, 43, 91, .08);
  transform: translateY(-2px);
}

.product-card > div {
  display: flex;
  flex-direction: column;
  flex: 1;
  min-width: 0;
}

.product-card > div > .product-actions {
  margin-top: auto;
  padding-top: 16px;
}

.product-card .product-image {
  flex-shrink: 0;
  height: auto;
  aspect-ratio: 1 / 1;
  background: var(--surface-muted);
}

.product-image img,
.product-detail-image img {
  border-color: rgba(24, 43, 91, .18);
}

.product-card h2 {
  margin: 6px 0;
  font-size: clamp(20px, 1.5vw, 22px);
  line-height: 1.3;
  text-wrap: pretty;
}

.product-meta,
.detail-meta,
.product-detail-meta {
  font-size: 11px;
  letter-spacing: .04em;
}

.product-summary {
  font-size: 13px;
  line-height: 1.55;
  text-wrap: pretty;
}

.texture-swatches,
.detail-swatches {
  gap: 8px;
}

.texture-swatches img {
  width: 40px;
  height: 40px;
}

.texture-swatches img.is-primary {
  border: 2px solid var(--ink);
}

.product-actions {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
  align-items: stretch;
  margin-top: 16px;
}

.product-actions a {
  min-width: 0;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 10px 12px;
  text-align: center;
  text-decoration: none;
  transition: color var(--motion-fast) ease, background-color var(--motion-fast) ease, border-color var(--motion-fast) ease;
}

.product-actions .catalogue-action-primary {
  min-height: 44px;
  background: var(--ink);
  border: 1px solid var(--ink);
  color: #fff;
}

.product-actions .catalogue-action-secondary {
  min-height: 44px;
  border: 1px solid var(--ink);
  color: var(--ink);
}

.product-actions .catalogue-action-tertiary {
  grid-column: 1 / -1;
  min-height: 36px;
  justify-content: flex-start;
  padding-inline: 0;
  border-bottom: 1px solid var(--line);
}

.product-actions .catalogue-action-primary:hover { background: var(--ink-soft); }
.product-actions .inquiry-link{grid-column:1/-1;white-space:normal;overflow-wrap:anywhere;line-height:1.4}
.fluted-preview{position:relative;isolation:isolate;overflow:hidden;display:block!important;padding:0!important;aspect-ratio:1/1;min-height:0!important}
.fluted-native-texture{position:absolute;inset:0;background-repeat:repeat;background-position:center}
.fluted-preview .fluted-room{position:absolute;inset:0;width:100%!important;height:100%!important;max-height:none!important;object-fit:cover!important;opacity:0;transition:opacity .2s}
.fluted-effect-label{position:absolute;bottom:0;left:0;right:0;padding:7px 9px;background:rgba(245,241,233,.94);color:#182B5B;font:11px/1.4 Arial,sans-serif;opacity:0}
.fluted-preview.show-room .fluted-room,.fluted-preview.show-room .fluted-effect-label{opacity:1}
@media(hover:hover){.fluted-preview:hover .fluted-room,.fluted-preview:hover .fluted-effect-label{opacity:1}}
.fluted-toggle{align-self:flex-start;background:transparent;color:var(--ink);border:1px solid var(--line);padding:9px 13px;font:600 12px/1.4 Arial,sans-serif;min-height:40px;cursor:pointer}
.fluted-card .texture-swatches button{border:0;background:none;padding:0;cursor:pointer}
.fluted-card .texture-swatches button:focus-visible,.fluted-toggle:focus-visible{outline:2px solid var(--ink);outline-offset:3px}
.fluted-detail-gallery{min-width:0;display:grid;gap:12px}
.fluted-detail-gallery .fluted-toggle{justify-self:start}
.product-actions .catalogue-action-secondary:hover { background: rgba(24, 43, 91, .06); }

.product-detail-back {
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  text-decoration: none;
}

.coating-detail-thumbnails button[aria-current="true"],
.coating-detail-thumbnails a[aria-current="true"] {
  outline: none;
  border: 2px solid var(--ink);
}

.coating-gallery-wayfinding {
  display: grid;
  grid-template-columns: 44px 1fr 44px;
  align-items: center;
  gap: 10px;
  margin-top: 12px;
}

.coating-gallery-previous,
.coating-gallery-next {
  width: 44px;
  height: 44px;
  display: grid;
  place-items: center;
  border: 1px solid var(--line);
  color: var(--ink);
  text-decoration: none;
}

.coating-gallery-previous::before,
.coating-gallery-next::before {
  content: "";
  width: 8px;
  height: 8px;
  border-left: 1.5px solid currentColor;
  border-bottom: 1.5px solid currentColor;
}

.coating-gallery-previous::before { transform: rotate(45deg); }
.coating-gallery-next::before { transform: rotate(225deg); }

.coating-gallery-position {
  color: var(--muted);
  font-size: 12px;
  text-align: center;
  letter-spacing: .04em;
}

.catalogue-support {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 0;
  margin: 0 6vw 64px;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.catalogue-support article {
  padding: 24px;
  border-right: 1px solid var(--line);
}

.catalogue-support article:last-child { border-right: 0; }
.catalogue-support h2 { margin: 0 0 8px; font-size: 17px; line-height: 1.3; }
.catalogue-support p { margin: 0; color: var(--muted); font-size: 12px; line-height: 1.6; text-wrap: pretty; }

a:focus-visible,
button:focus-visible,
input:focus-visible {
  outline: 3px solid var(--accent);
  outline-offset: 3px;
}

@keyframes catalogue-card-in {
  from { opacity: 0; transform: translateY(5px); }
  to { opacity: 1; transform: translateY(0); }
}

@media (max-width: 1279px) {
  .product-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .catalogue-support { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .catalogue-support article:nth-child(2) { border-right: 0; }
  .catalogue-support article:nth-child(-n+2) { border-bottom: 1px solid var(--line); }
}

@media (max-width: 899px) {
  .product-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 780px) {
  .coating-detail-actions {
    position: sticky;
    bottom: 0;
    z-index: 6;
    grid-template-columns: 1fr 1fr;
    padding: 10px 0 max(10px, env(safe-area-inset-bottom));
    background: var(--paper);
  }

  .coating-detail-actions .coating-action-secondary:last-child { grid-column: 1 / -1; }
}

@media (max-width: 599px) {
  .catalogue-header { height: 64px; padding-inline: 5vw; }
  .brand { font-size: 20px; }
  .catalogue-header .inquiry-link { font-size: 12px; }
  .filters-secondary { top: 64px; margin-inline: -5vw; padding-inline: 5vw; }
  .filters-tertiary { top: 129px; margin-inline: -5vw; padding-inline: 5vw; }
  .product-grid { grid-template-columns: 1fr; }
  .product-card { padding: 14px; }
  .texture-swatches img { width: 44px; height: 44px; }
  .coating-detail-thumbnails button,
  .coating-detail-thumbnails a { flex-basis: 58px; width: 58px; height: 58px; }
  .catalogue-support { grid-template-columns: 1fr; margin-inline: 5vw; }
  .catalogue-support article,
  .catalogue-support article:nth-child(2) { border-right: 0; border-bottom: 1px solid var(--line); }
  .catalogue-support article:last-child { border-bottom: 0; }
}

#load-more[hidden], #coating-search-clear[hidden] { display: none; }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    scroll-behavior: auto !important;
    animation-duration: .01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .01ms !important;
  }
}