:root {
  --ink: #141414;
  --paper: #f7f3eb;
  --porcelain: #fffdf7;
  --celadon: #9fb8a9;
  --jade: #31584b;
  --cinnabar: #9d3f2f;
  --bronze: #ad8b57;
  --line: rgba(20, 20, 20, 0.14);
  --white-line: rgba(255, 253, 247, 0.24);
  --shadow: 0 22px 70px rgba(0, 0, 0, 0.18);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font-family:
    Inter, "Noto Sans SC", "Microsoft YaHei", "PingFang SC", system-ui,
    -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.6;
  overflow-x: hidden;
}

img {
  display: block;
  max-width: 100%;
}

a {
  color: inherit;
  text-decoration: none;
}

.site-header {
  position: fixed;
  z-index: 20;
  top: 0;
  left: 0;
  right: 0;
  display: grid;
  grid-template-columns: minmax(220px, 1fr) auto auto auto;
  align-items: center;
  gap: 28px;
  padding: 18px clamp(20px, 4vw, 64px);
  color: var(--porcelain);
  background: linear-gradient(180deg, rgba(12, 12, 12, 0.72), rgba(12, 12, 12, 0));
  transition:
    background 180ms ease,
    box-shadow 180ms ease,
    padding 180ms ease;
}

.site-header.is-solid {
  padding-top: 12px;
  padding-bottom: 12px;
  background: rgba(20, 20, 20, 0.92);
  box-shadow: 0 12px 36px rgba(0, 0, 0, 0.2);
  backdrop-filter: blur(14px);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  min-width: 0;
}

.brand-mark {
  display: block;
  flex: 0 0 auto;
  width: 42px;
  height: 42px;
  border: 0;
  border-radius: 10px;
  color: transparent;
  background: transparent;
  box-shadow: 0 8px 20px rgba(20, 20, 20, 0.12);
  font-size: 0;
  overflow: hidden;
}

.brand-mark img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.brand strong,
.brand small {
  display: block;
  white-space: nowrap;
}

.brand strong {
  font-size: 17px;
  letter-spacing: 0;
}

.brand small {
  color: rgba(255, 253, 247, 0.72);
  font-size: 11px;
  line-height: 1.2;
}

.nav {
  display: flex;
  align-items: center;
  gap: clamp(12px, 1.6vw, 22px);
  color: rgba(255, 253, 247, 0.82);
  font-size: 14px;
}

.nav a {
  padding: 8px 0;
}

.nav a:hover,
.nav-action:hover {
  color: var(--porcelain);
}

.nav-action {
  min-width: 96px;
  padding: 10px 16px;
  border: 1px solid var(--white-line);
  border-radius: 999px;
  color: rgba(255, 253, 247, 0.9);
  font-size: 14px;
  text-align: center;
}

.header-actions {
  display: inline-flex;
  align-items: center;
  justify-content: flex-end;
  gap: 10px;
}

.nav-account,
.home-account {
  min-width: 74px;
  padding: 10px 14px;
  border: 1px solid rgba(255, 253, 247, 0.18);
  border-radius: 999px;
  color: var(--ink);
  background: var(--porcelain);
  font-size: 14px;
  font-weight: 900;
  text-align: center;
}

.home-account {
  border-color: var(--line);
  color: var(--porcelain);
  background: var(--ink);
}

.language-control {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: rgba(255, 253, 247, 0.82);
  font-size: 13px;
}

.language-control select {
  min-width: 118px;
  height: 38px;
  padding: 0 32px 0 12px;
  border: 1px solid var(--white-line);
  border-radius: 999px;
  color: var(--porcelain);
  background: rgba(255, 253, 247, 0.08);
  font: inherit;
  outline: none;
}

.language-control option {
  color: var(--ink);
  background: var(--porcelain);
}

.hero {
  position: relative;
  min-height: min(760px, 86vh);
  overflow: hidden;
  color: var(--porcelain);
  background: var(--ink);
}

.hero-image {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.hero-shade {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(90deg, rgba(12, 12, 12, 0.9), rgba(12, 12, 12, 0.46) 45%, rgba(12, 12, 12, 0.1)),
    linear-gradient(180deg, rgba(12, 12, 12, 0.34), rgba(12, 12, 12, 0.14) 56%, rgba(12, 12, 12, 0.54));
}

.hero-content {
  position: relative;
  z-index: 2;
  width: min(720px, calc(100% - 40px));
  padding: clamp(132px, 22vh, 210px) 0 84px clamp(20px, 7vw, 96px);
}

.eyebrow,
.section-kicker {
  margin: 0 0 16px;
  color: var(--bronze);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.hero h1,
.split h2,
.section-heading h2,
.commerce-copy h2,
.contact-band h2 {
  margin: 0;
  font-family: "Noto Serif SC", "Songti SC", Georgia, serif;
  font-weight: 600;
  letter-spacing: 0;
}

.hero h1 {
  max-width: 660px;
  font-size: clamp(42px, 6.5vw, 84px);
  line-height: 1.05;
  overflow-wrap: anywhere;
}

.hero h1 span {
  display: block;
}

.hero-copy {
  width: min(620px, 100%);
  margin: 24px 0 0;
  color: rgba(255, 253, 247, 0.83);
  font-size: clamp(16px, 2vw, 20px);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 34px;
}

.button {
  display: inline-flex;
  min-height: 46px;
  align-items: center;
  justify-content: center;
  padding: 12px 20px;
  border-radius: 999px;
  font-size: 15px;
  font-weight: 700;
  transition:
    transform 180ms ease,
    border-color 180ms ease,
    background 180ms ease;
}

.button:hover {
  transform: translateY(-1px);
}

.button.primary {
  border: 1px solid var(--cinnabar);
  color: var(--porcelain);
  background: var(--cinnabar);
}

.button.ghost {
  border: 1px solid var(--white-line);
  color: var(--porcelain);
  background: rgba(255, 253, 247, 0.08);
}

.mobile-only {
  display: none;
}

.intro-band,
.content-section,
.commerce-section,
.platform-section,
.contact-band {
  padding: clamp(64px, 9vw, 118px) clamp(20px, 5vw, 72px);
}

.intro-band {
  background: var(--porcelain);
}

.split {
  display: grid;
  grid-template-columns: minmax(280px, 0.9fr) minmax(280px, 1.1fr);
  gap: clamp(34px, 7vw, 96px);
  max-width: 1180px;
  margin: 0 auto;
}

.split h2,
.section-heading h2,
.commerce-copy h2,
.contact-band h2 {
  font-size: clamp(30px, 4vw, 54px);
  line-height: 1.16;
  overflow-wrap: anywhere;
}

.split h2 span {
  display: block;
}

.intro-copy {
  color: rgba(20, 20, 20, 0.72);
  font-size: 18px;
}

.intro-copy p {
  margin: 0 0 18px;
}

.content-section {
  background: var(--paper);
}

.section-heading {
  display: flex;
  max-width: 1180px;
  margin: 0 auto 34px;
  align-items: end;
  justify-content: space-between;
  gap: 24px;
}

.section-lede {
  max-width: 780px;
  margin: -12px auto 32px;
  color: rgba(20, 20, 20, 0.68);
  font-size: 18px;
}

.collection-grid {
  display: grid;
  max-width: 1180px;
  margin: 0 auto;
  gap: 18px;
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.collection-item {
  min-height: 100%;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(255, 253, 247, 0.72);
}

.collection-media {
  position: relative;
  aspect-ratio: 4 / 3;
  margin: 0;
  overflow: hidden;
  background: #eadfce;
}

.collection-media img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.collection-media span {
  position: absolute;
  top: 14px;
  left: 14px;
  display: grid;
  width: 42px;
  height: 42px;
  place-items: center;
  border-radius: 8px;
  color: var(--porcelain);
  background: rgba(20, 20, 20, 0.76);
  font-family: "Noto Serif SC", "Songti SC", Georgia, serif;
  font-size: 21px;
}

.collection-copy {
  display: grid;
  gap: 12px;
  padding: 20px;
}

.collection-copy small {
  color: var(--cinnabar);
  font-size: 12px;
  font-weight: 800;
}

.collection-item h3,
.business-grid h3 {
  margin: 0;
  font-size: 21px;
}

.collection-item p,
.business-grid p,
.commerce-copy p {
  margin: 0;
  color: rgba(20, 20, 20, 0.66);
}

.collection-facts {
  display: grid;
  gap: 10px;
  margin: 2px 0 0;
}

.collection-facts div {
  display: grid;
  gap: 3px;
}

.collection-facts dt {
  color: var(--cinnabar);
  font-size: 11px;
  font-weight: 800;
}

.collection-link {
  display: inline-flex;
  min-height: 38px;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--ink);
  background: transparent;
  padding: 8px 14px;
  font: inherit;
  font-size: 13px;
  font-weight: 800;
  cursor: pointer;
}

.collection-link:hover {
  border-color: var(--cinnabar);
  color: var(--porcelain);
  background: var(--cinnabar);
}

.collection-facts dd {
  margin: 0;
  color: rgba(20, 20, 20, 0.62);
  font-size: 13px;
  line-height: 1.45;
}

.timeline-section {
  background: #f2eadc;
}

.timeline-list {
  display: grid;
  max-width: 1180px;
  margin: 0 auto;
  gap: 12px;
}

.timeline-item {
  display: grid;
  grid-template-columns: 54px minmax(210px, 0.42fr) minmax(0, 1fr);
  gap: 22px;
  align-items: start;
  padding: 22px 0;
  border-top: 1px solid var(--line);
}

.timeline-item > span {
  display: grid;
  width: 42px;
  height: 42px;
  place-items: center;
  border: 1px solid rgba(157, 63, 47, 0.38);
  border-radius: 50%;
  color: var(--cinnabar);
  font-weight: 800;
}

.timeline-media {
  position: relative;
  overflow: hidden;
  margin: 0;
  border-radius: 8px;
  background: #e1d4bf;
}

.timeline-media img {
  display: block;
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
}

.timeline-copy {
  display: grid;
  gap: 10px;
  min-width: 0;
}

.timeline-item h3,
.artifact-card h3,
.region-card h3,
.story-card h3,
.glossary-item h3 {
  margin: 0 0 10px;
  line-height: 1.25;
}

.timeline-item p {
  margin: 0;
  color: rgba(20, 20, 20, 0.66);
}

.timeline-copy > p:first-child,
.timeline-item small {
  display: block;
  margin: 0 0 8px;
  color: var(--cinnabar);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.timeline-item small {
  color: rgba(20, 20, 20, 0.52);
  text-transform: none;
}

.timeline-facts {
  display: grid;
  gap: 8px;
  margin: 4px 0 0;
}

.timeline-facts div {
  display: grid;
  gap: 3px;
}

.timeline-facts dt {
  color: var(--jade);
  font-size: 12px;
  font-weight: 900;
}

.timeline-facts dd {
  margin: 0;
  color: rgba(20, 20, 20, 0.66);
  font-size: 14px;
  line-height: 1.52;
}

.artifact-section {
  background: var(--porcelain);
}

.artifact-grid,
.region-grid,
.story-grid,
.glossary-grid {
  display: grid;
  max-width: 1180px;
  margin: 0 auto;
  gap: 18px;
}

.artifact-grid {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.artifact-card,
.region-card,
.story-card,
.glossary-item {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(255, 253, 247, 0.72);
}

.artifact-card {
  display: flex;
  min-height: 430px;
  flex-direction: column;
  overflow: hidden;
}

.artifact-symbol {
  display: grid;
  width: 58px;
  height: 58px;
  margin-bottom: 18px;
  place-items: center;
  color: var(--porcelain);
  background: linear-gradient(135deg, var(--jade), var(--ink));
  border-radius: 50%;
  font-family: "Noto Serif SC", "Songti SC", Georgia, serif;
  font-size: 24px;
}

.artifact-media {
  position: relative;
  margin: 0;
  background: #e9dfcf;
}

.artifact-media img {
  display: block;
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
}

.artifact-media span {
  position: absolute;
  top: 12px;
  left: 12px;
  display: grid;
  width: 44px;
  height: 44px;
  place-items: center;
  border-radius: 50%;
  color: var(--porcelain);
  background: rgba(20, 20, 20, 0.76);
  font-family: "Noto Serif SC", "Songti SC", Georgia, serif;
  font-size: 21px;
}

.artifact-card-body {
  display: flex;
  flex: 1;
  flex-direction: column;
  padding: 20px;
}

.artifact-card > p,
.artifact-card-body > p,
.region-card dd,
.story-card p,
.glossary-item small,
.product-card-body small {
  color: rgba(20, 20, 20, 0.64);
}

.artifact-meta {
  margin-top: auto;
  padding-top: 16px;
  border-top: 1px solid var(--line);
}

.artifact-meta span {
  display: block;
  margin-bottom: 4px;
  color: var(--cinnabar);
  font-size: 12px;
  font-weight: 800;
}

.region-section {
  background: #eef2ed;
}

.region-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.region-card {
  padding: 24px;
}

.region-card dl {
  display: grid;
  gap: 12px;
  margin: 0;
}

.region-card dt {
  color: var(--cinnabar);
  font-size: 12px;
  font-weight: 800;
}

.region-card dd {
  margin: 2px 0 0;
}

.story-grid {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.story-card {
  min-height: 230px;
  padding: 24px;
}

.story-card strong {
  display: block;
  margin-top: 18px;
  color: var(--jade);
}

.glossary-section {
  padding-top: 44px;
  background: var(--porcelain);
}

.glossary-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.glossary-item {
  padding: 18px 20px;
}

.glossary-item p {
  margin: 0 0 8px;
  color: var(--cinnabar);
  font-weight: 800;
}

.commerce-section {
  display: grid;
  grid-template-columns: minmax(280px, 0.9fr) minmax(320px, 1.1fr);
  gap: clamp(34px, 8vw, 110px);
  align-items: center;
  color: var(--porcelain);
  background: var(--jade);
}

.commerce-copy,
.product-list {
  max-width: 560px;
}

.commerce-copy p {
  margin-top: 22px;
  color: rgba(255, 253, 247, 0.78);
  font-size: 18px;
}

.product-list {
  width: 100%;
  border-top: 1px solid rgba(255, 253, 247, 0.2);
}

.product-row {
  display: grid;
  min-height: 82px;
  grid-template-columns: minmax(150px, 0.9fr) minmax(180px, 1fr);
  gap: 20px;
  align-items: center;
  border-bottom: 1px solid rgba(255, 253, 247, 0.2);
}

.product-row strong {
  font-size: 20px;
}

.product-row span {
  color: rgba(255, 253, 247, 0.72);
}

.product-section {
  background: var(--porcelain);
}

.catalog-toolbar {
  display: flex;
  max-width: 1180px;
  margin: -8px auto 24px;
  flex-wrap: wrap;
  gap: 10px;
}

.catalog-toolbar button {
  min-height: 38px;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: rgba(20, 20, 20, 0.68);
  background: transparent;
  padding: 8px 14px;
  font: inherit;
  font-size: 13px;
  font-weight: 800;
  cursor: pointer;
}

.catalog-toolbar button.is-active {
  border-color: var(--cinnabar);
  color: var(--porcelain);
  background: var(--cinnabar);
}

.database-stats {
  display: grid;
  max-width: 1180px;
  margin: 0 auto 22px;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
}

.database-stats div,
.object-record-card {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(255, 253, 247, 0.78);
}

.database-stats div {
  padding: 18px 20px;
}

.database-stats strong {
  display: block;
  color: var(--jade);
  font-family: "Noto Serif SC", "Songti SC", Georgia, serif;
  font-size: 36px;
  line-height: 1;
}

.database-stats span {
  display: block;
  margin-top: 6px;
  color: rgba(20, 20, 20, 0.62);
  font-size: 13px;
  font-weight: 800;
}

.object-record-grid {
  display: grid;
  max-width: 1180px;
  margin: 0 auto;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
}

.object-record-card {
  display: grid;
  gap: 12px;
  min-height: 440px;
  overflow: hidden;
  padding: 0 18px 18px;
}

.object-record-media {
  position: relative;
  margin: 0 -18px 4px;
  background: #eadfce;
}

.object-record-media img {
  display: block;
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
}

.object-record-media span {
  position: absolute;
  right: 12px;
  bottom: 12px;
  display: grid;
  width: 42px;
  height: 42px;
  place-items: center;
  border-radius: 8px;
  color: var(--porcelain);
  background: rgba(20, 20, 20, 0.76);
  font-family: "Noto Serif SC", "Songti SC", Georgia, serif;
  font-size: 20px;
}

.object-record-symbol {
  display: grid;
  width: 54px;
  height: 54px;
  place-items: center;
  border-radius: 8px;
  color: var(--porcelain);
  background: linear-gradient(135deg, var(--cinnabar), var(--jade));
  font-family: "Noto Serif SC", "Songti SC", Georgia, serif;
  font-size: 24px;
}

.object-record-card > p,
.object-record-card dt {
  margin: 0;
  color: var(--cinnabar);
  font-size: 12px;
  font-weight: 800;
}

.object-record-card h3 {
  margin: 0;
  font-size: 20px;
  line-height: 1.25;
}

.object-record-card dl {
  display: grid;
  gap: 8px;
  margin: 0;
}

.object-record-card dd {
  margin: 2px 0 0;
  color: rgba(20, 20, 20, 0.62);
  font-size: 13px;
  line-height: 1.42;
}

.object-record-card strong {
  color: var(--jade);
  font-size: 13px;
  line-height: 1.45;
}

.object-record-card a,
.related-card {
  display: inline-flex;
  min-height: 40px;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 8px 14px;
  font-size: 13px;
  font-weight: 900;
}

.object-record-card a:hover,
.related-card:hover {
  border-color: var(--cinnabar);
  color: var(--porcelain);
  background: var(--cinnabar);
}

.store-facets {
  display: grid;
  max-width: 1180px;
  margin: 0 auto 24px;
  gap: 12px;
}

.store-history-grid {
  display: grid;
  max-width: 1180px;
  margin: 0 auto;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 18px;
}

.store-history-card {
  display: flex;
  min-height: 390px;
  flex-direction: column;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(255, 253, 247, 0.78);
  box-shadow: 0 12px 26px rgba(20, 20, 20, 0.06);
}

.store-history-card img {
  display: block;
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  background: #eadfce;
}

.store-history-card span,
.store-history-card strong {
  margin: 18px 20px 0;
  color: var(--cinnabar);
  font-size: 12px;
  font-weight: 900;
}

.store-history-card h3 {
  margin: 8px 20px 10px;
  font-size: 20px;
  line-height: 1.25;
}

.store-history-card p {
  margin: 0 20px;
  color: rgba(20, 20, 20, 0.66);
  line-height: 1.55;
}

.store-history-card strong {
  margin-top: auto;
  border-top: 1px solid var(--line);
  padding: 14px 0 18px;
  color: var(--jade);
}

.store-history-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 18px 34px rgba(20, 20, 20, 0.1);
}

.facet-group {
  display: grid;
  grid-template-columns: 92px minmax(0, 1fr);
  gap: 12px;
  align-items: start;
}

.facet-group > span {
  padding-top: 8px;
  color: var(--jade);
  font-size: 13px;
  font-weight: 900;
}

.facet-group > div {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.facet-group button {
  min-height: 34px;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: rgba(20, 20, 20, 0.68);
  background: rgba(255, 253, 247, 0.62);
  padding: 7px 12px;
  font: inherit;
  font-size: 12px;
  font-weight: 800;
}

.facet-group button.is-active {
  border-color: var(--jade);
  color: var(--porcelain);
  background: var(--jade);
}

.product-grid {
  display: grid;
  max-width: 1180px;
  margin: 0 auto;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.product-card {
  display: flex;
  min-height: 330px;
  flex-direction: column;
  justify-content: space-between;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fbf8f0;
  box-shadow: 0 14px 34px rgba(20, 20, 20, 0.08);
}

.product-image {
  display: block;
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  background: #eadfce;
}

.product-symbol {
  display: grid;
  min-height: 116px;
  place-items: center;
  color: rgba(255, 253, 247, 0.94);
  background:
    radial-gradient(circle at 70% 30%, rgba(173, 139, 87, 0.5), transparent 34%),
    linear-gradient(135deg, var(--jade), var(--ink));
  font-family: "Noto Serif SC", "Songti SC", Georgia, serif;
  font-size: 46px;
}

.product-card-body {
  padding: 24px 24px 10px;
}

.product-material {
  margin: 0 0 10px;
  color: var(--cinnabar);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0;
  text-transform: uppercase;
}

.product-series {
  display: inline-flex;
  margin-bottom: 8px;
  color: var(--jade);
  font-size: 12px;
  font-weight: 800;
}

.product-card h3 {
  margin: 0 0 12px;
  font-size: 22px;
  line-height: 1.25;
}

.product-card p {
  margin: 0;
  color: rgba(20, 20, 20, 0.66);
}

.product-meta {
  display: grid;
  gap: 8px;
  margin: 14px 0 0;
}

.product-meta div {
  display: grid;
  gap: 3px;
}

.product-meta dt {
  color: var(--cinnabar);
  font-size: 11px;
  font-weight: 800;
}

.product-meta dd {
  margin: 0;
  color: rgba(20, 20, 20, 0.62);
  font-size: 13px;
  line-height: 1.45;
}

.product-heritage {
  display: flex;
  margin-top: 14px;
  flex-wrap: wrap;
  gap: 8px;
  align-items: center;
  border-top: 1px solid var(--line);
  padding-top: 12px;
}

.product-heritage span {
  color: var(--jade);
  font-size: 12px;
  font-weight: 900;
}

.product-heritage a {
  border: 1px solid rgba(49, 88, 75, 0.18);
  border-radius: 999px;
  color: rgba(20, 20, 20, 0.72);
  background: rgba(49, 88, 75, 0.06);
  padding: 5px 9px;
  font-size: 12px;
  font-weight: 800;
}

.product-heritage a:hover {
  border-color: var(--jade);
  color: var(--porcelain);
  background: var(--jade);
}

.product-card-foot {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  padding: 18px 24px 24px;
}

.product-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  justify-content: flex-end;
}

.button.small {
  min-height: 38px;
  padding: 8px 14px;
  color: var(--porcelain);
  background: var(--cinnabar);
  font-size: 13px;
}

.button.small.ghost {
  border: 1px solid var(--line);
  color: var(--ink);
  background: transparent;
}

.button.small.ghost:hover {
  border-color: var(--jade);
  color: var(--porcelain);
  background: var(--jade);
}

.platform-section {
  display: grid;
  grid-template-columns: minmax(280px, 1fr) minmax(280px, 420px);
  gap: clamp(34px, 7vw, 96px);
  align-items: center;
  color: var(--porcelain);
  background:
    linear-gradient(135deg, rgba(20, 20, 20, 0.96), rgba(49, 88, 75, 0.96)),
    var(--ink);
}

.platform-copy {
  max-width: 760px;
}

.platform-copy h2 {
  margin: 0;
  font-family: "Noto Serif SC", "Songti SC", Georgia, serif;
  font-size: clamp(30px, 4vw, 52px);
  line-height: 1.16;
}

.platform-copy p:not(.section-kicker) {
  margin: 22px 0 0;
  color: rgba(255, 253, 247, 0.76);
  font-size: 18px;
}

.app-preview {
  display: grid;
  justify-items: center;
}

.app-phone {
  width: min(100%, 340px);
  min-height: 520px;
  padding: 22px;
  border: 1px solid rgba(255, 253, 247, 0.2);
  border-radius: 34px;
  background:
    linear-gradient(180deg, rgba(255, 253, 247, 0.12), rgba(255, 253, 247, 0.04)),
    rgba(255, 253, 247, 0.08);
  box-shadow: var(--shadow);
}

.app-status {
  width: 86px;
  height: 5px;
  margin: 0 auto 62px;
  border-radius: 999px;
  background: rgba(255, 253, 247, 0.3);
}

.app-phone h3 {
  margin: 0;
  font-size: 30px;
}

.app-phone p {
  margin: 16px 0 26px;
  color: rgba(255, 253, 247, 0.74);
}

.business-grid {
  display: grid;
  max-width: 1180px;
  margin: 0 auto;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1px;
  background: var(--line);
}

.business-grid article {
  min-height: 210px;
  padding: 30px;
  background: var(--porcelain);
}

.business-grid h3 {
  margin-top: 0;
}

.contact-band {
  display: grid;
  grid-template-columns: minmax(260px, 1fr) auto;
  gap: 28px;
  align-items: center;
  color: var(--porcelain);
  background: var(--ink);
}

.contact-band h2 {
  max-width: 880px;
}

.site-footer {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  padding: 24px clamp(20px, 5vw, 72px);
  color: rgba(20, 20, 20, 0.62);
  background: var(--porcelain);
  font-size: 14px;
}

@media (max-width: 900px) {
  .site-header {
    grid-template-columns: 1fr auto auto;
    gap: 14px;
  }

  .nav {
    display: none;
  }

  .hero {
    min-height: 82vh;
  }

  .hero-content {
    width: min(620px, calc(100% - 32px));
    padding-left: 20px;
  }

  .split,
  .commerce-section,
  .platform-section,
  .contact-band {
    grid-template-columns: 1fr;
  }

  .collection-grid,
  .business-grid,
  .product-grid,
  .store-history-grid,
  .object-record-grid,
  .artifact-grid,
  .region-grid,
  .story-grid,
  .glossary-grid {
    grid-template-columns: 1fr 1fr;
  }

  .timeline-item {
    grid-template-columns: 48px minmax(0, 1fr);
  }

  .timeline-media,
  .timeline-copy {
    grid-column: 2;
  }

  .product-row {
    grid-template-columns: 1fr;
    gap: 4px;
    padding: 18px 0;
  }
}

@media (max-width: 620px) {
  .site-header {
    padding: 14px 16px;
  }

  .brand-mark {
    width: 38px;
    height: 38px;
  }

  .nav-action {
    display: none;
  }

  .brand small {
    display: none;
  }

  .language-control span {
    display: none;
  }

  .language-control select {
    min-width: 82px;
    max-width: 94px;
    padding-left: 10px;
    padding-right: 10px;
  }

  .hero {
    min-height: 84vh;
  }

  .hero-image {
    object-position: 58% center;
  }

  .hero-shade {
    background:
      linear-gradient(90deg, rgba(12, 12, 12, 0.9), rgba(12, 12, 12, 0.5)),
      linear-gradient(180deg, rgba(12, 12, 12, 0.25), rgba(12, 12, 12, 0.72));
  }

  .hero-content {
    padding-top: 120px;
    padding-bottom: 54px;
    width: calc(100vw - 40px);
    max-width: calc(100vw - 40px);
  }

  .hero h1 {
    font-size: clamp(34px, 10.5vw, 42px);
  }

  .split h2,
  .section-heading h2,
  .commerce-copy h2,
  .contact-band h2 {
    font-size: clamp(28px, 8.8vw, 38px);
  }

  .hero-copy,
  .intro-copy,
  .commerce-copy p {
    font-size: 16px;
  }

  .mobile-only {
    display: initial;
  }

  .intro-band,
  .content-section,
  .commerce-section,
  .platform-section,
  .contact-band,
  .split,
  .section-heading,
  .collection-grid,
  .product-grid,
  .store-history-grid,
  .business-grid {
    max-width: 100vw;
    min-width: 0;
  }

  .hero-copy,
  .intro-copy,
  .commerce-copy p,
  .collection-item p,
  .business-grid p,
  .split h2,
  .section-heading h2,
  .contact-band h2 {
    overflow-wrap: anywhere;
    word-break: normal;
  }

  .button {
    width: 100%;
  }

  .section-heading {
    display: block;
  }

  .collection-grid,
  .business-grid,
  .product-grid,
  .store-history-grid,
  .object-record-grid,
  .artifact-grid,
  .region-grid,
  .story-grid,
  .glossary-grid {
    grid-template-columns: 1fr;
  }

  .timeline-item {
    grid-template-columns: 1fr;
    gap: 10px;
  }

  .timeline-media,
  .timeline-copy {
    grid-column: auto;
  }

  .product-card-foot {
    align-items: stretch;
    flex-direction: column;
  }

  .collection-item,
  .business-grid article {
    min-height: auto;
  }

  .site-footer {
    display: block;
  }

  .site-footer span {
    display: block;
  }
}

/* Multi-page museum structure */
.language-tabs {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px;
  border: 1px solid var(--white-line);
  border-radius: 999px;
  background: rgba(255, 253, 247, 0.08);
}

.language-tabs button {
  min-width: 34px;
  height: 30px;
  border: 0;
  border-radius: 999px;
  color: rgba(255, 253, 247, 0.78);
  background: transparent;
  font: inherit;
  font-size: 12px;
  font-weight: 800;
  cursor: pointer;
}

.language-tabs button.is-active {
  color: var(--ink);
  background: var(--porcelain);
}

.nav a.is-active {
  color: var(--porcelain);
  box-shadow: inset 0 -2px 0 var(--bronze);
}

.home-page {
  min-height: 100vh;
  color: var(--ink);
  background: var(--paper);
}

.home-header {
  position: sticky;
  z-index: 20;
  top: 0;
  display: grid;
  grid-template-columns: minmax(220px, 0.82fr) minmax(0, 1fr) auto;
  align-items: center;
  gap: clamp(16px, 2.4vw, 28px);
  border-bottom: 1px solid var(--line);
  background: rgba(255, 253, 247, 0.94);
  padding: 13px clamp(20px, 5vw, 72px);
  backdrop-filter: blur(16px);
}

.home-header .brand-mark,
.home-footer .brand-mark {
  border-color: transparent;
  color: var(--ink);
  background-color: transparent;
}

.home-header .brand small {
  color: rgba(20, 20, 20, 0.58);
}

.home-header-nav {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: clamp(12px, 1.35vw, 20px);
  color: rgba(20, 20, 20, 0.72);
  font-size: 14px;
  font-weight: 800;
}

.home-header-nav a {
  padding: 8px 0;
}

.home-header-nav a:hover {
  color: var(--cinnabar);
}

.home-login-link {
  position: relative;
  color: rgba(20, 20, 20, 0.58);
}

.home-login-link::before {
  content: "";
  display: inline-block;
  width: 1px;
  height: 14px;
  margin: 0 4px 0 0;
  vertical-align: -2px;
  background: rgba(20, 20, 20, 0.18);
}

.home-header .language-tabs {
  border-color: var(--line);
  background: rgba(20, 20, 20, 0.04);
}

.home-header .language-tabs button {
  color: rgba(20, 20, 20, 0.7);
}

.home-header .language-tabs button.is-active {
  color: var(--porcelain);
  background: var(--ink);
}

.home-shell {
  display: grid;
  gap: clamp(34px, 5vw, 56px);
  padding: clamp(34px, 4.8vw, 62px) clamp(20px, 5vw, 72px) clamp(54px, 7vw, 88px);
}

.home-hero {
  display: grid;
  grid-template-columns: minmax(320px, 0.95fr) minmax(360px, 0.9fr);
  gap: clamp(30px, 5vw, 72px);
  align-items: center;
  width: min(1180px, 100%);
  margin: 0 auto;
}

.home-copy {
  min-width: 0;
}

.home-hero h1 {
  margin: 0;
  font-family: "Noto Serif SC", "Songti SC", Georgia, serif;
  color: var(--ink);
  font-size: clamp(42px, 5.2vw, 68px);
  font-weight: 600;
  line-height: 1.08;
  letter-spacing: 0;
  text-wrap: balance;
}

.home-hero h1 span {
  display: block;
}

.home-statement {
  width: min(610px, 100%);
  margin: 20px 0 0;
  color: rgba(20, 20, 20, 0.68);
  font-size: clamp(16px, 1.45vw, 18px);
}

.home-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 26px;
}

.home-primary,
.home-secondary {
  display: inline-flex;
  min-height: 46px;
  align-items: center;
  justify-content: center;
  border-radius: 999px;
  padding: 11px 18px;
  font-weight: 900;
}

.home-primary {
  border: 1px solid var(--cinnabar);
  color: var(--porcelain);
  background: var(--cinnabar);
}

.home-secondary {
  border: 1px solid var(--line);
  color: var(--ink);
  background: var(--porcelain);
}

.home-primary:hover,
.home-secondary:hover {
  border-color: var(--bronze);
  background: rgba(173, 139, 87, 0.18);
}

.home-secondary:hover {
  color: var(--ink);
}

.home-visual {
  position: relative;
  min-width: 0;
  margin: 0;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #eadfce;
  box-shadow: 0 24px 70px rgba(20, 20, 20, 0.16);
}

.home-visual img {
  width: 100%;
  aspect-ratio: 4 / 2.9;
  object-fit: cover;
}

.home-visual figcaption {
  position: absolute;
  right: 16px;
  bottom: 16px;
  left: 16px;
  border: 1px solid rgba(255, 253, 247, 0.32);
  border-radius: 8px;
  color: var(--porcelain);
  background: rgba(20, 20, 20, 0.48);
  padding: 10px 12px;
  font-size: 12px;
  font-weight: 800;
  backdrop-filter: blur(10px);
}

.home-app-download {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: center;
  width: min(1180px, 100%);
  margin: -10px auto 0;
  gap: 18px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background:
    linear-gradient(90deg, rgba(52, 96, 88, 0.08), rgba(173, 139, 87, 0.1)),
    var(--porcelain);
  padding: 18px 20px;
}

.home-app-download-copy {
  display: grid;
  grid-template-columns: 58px minmax(0, 1fr);
  align-items: center;
  gap: 16px;
  min-width: 0;
}

.home-app-download-copy img {
  width: 58px;
  height: 58px;
  border: 1px solid var(--line);
  border-radius: 16px;
  background: var(--paper);
  padding: 5px;
}

.home-app-download h2 {
  margin: 0;
  font-size: clamp(20px, 2vw, 26px);
  line-height: 1.18;
}

.home-app-download p:not(.section-kicker) {
  max-width: 690px;
  margin: 5px 0 0;
  color: rgba(20, 20, 20, 0.62);
  font-size: 14px;
  line-height: 1.55;
}

.home-app-download-actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 10px;
}

.home-app-download-primary,
.home-app-download-secondary {
  display: inline-flex;
  min-height: 40px;
  align-items: center;
  justify-content: center;
  border-radius: 999px;
  padding: 9px 15px;
  font-size: 13px;
  font-weight: 900;
  white-space: nowrap;
}

.home-app-download-primary {
  border: 1px solid var(--ink);
  color: var(--porcelain);
  background: var(--ink);
}

.home-app-download-secondary {
  border: 1px solid var(--line);
  color: var(--ink);
  background: rgba(255, 253, 247, 0.74);
}

.home-app-download-primary:hover,
.home-app-download-secondary:hover {
  border-color: var(--bronze);
  background: rgba(173, 139, 87, 0.18);
  color: var(--ink);
}

.home-entry-section {
  display: grid;
  width: min(1180px, 100%);
  margin: 0 auto;
  gap: 18px;
}

.home-section-head {
  display: grid;
  gap: 7px;
  justify-items: start;
}

.home-section-head h2 {
  max-width: 720px;
  margin: 0;
  font-family: "Noto Serif SC", "Songti SC", Georgia, serif;
  font-size: clamp(27px, 3vw, 40px);
  font-weight: 600;
  line-height: 1.16;
}

.home-nav {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 12px;
  min-width: 0;
  margin: 0;
}

.home-nav a {
  display: grid;
  min-height: 104px;
  align-content: center;
  gap: 7px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--porcelain);
  padding: 16px;
  color: var(--ink);
}

.home-nav a:first-child {
  grid-column: auto;
}

.home-nav span {
  font-size: 17px;
  font-weight: 900;
}

.home-nav small {
  color: rgba(20, 20, 20, 0.58);
  font-size: 12px;
  line-height: 1.35;
}

.home-nav a:hover {
  border-color: var(--bronze);
  background: #fbf6ed;
}

.home-metrics {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 22px;
}

.home-metrics span {
  display: inline-flex;
  min-height: 46px;
  align-items: center;
  gap: 8px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--porcelain);
  padding: 8px 13px;
}

.home-metrics strong {
  color: var(--jade);
  font-family: "Noto Serif SC", "Songti SC", Georgia, serif;
  font-size: 24px;
  line-height: 1;
}

.home-metrics small {
  color: rgba(20, 20, 20, 0.62);
  font-size: 12px;
  font-weight: 800;
}

.home-footer {
  display: grid;
  grid-template-columns: minmax(220px, 1fr) auto auto;
  align-items: center;
  gap: 24px;
  padding: 28px clamp(20px, 5vw, 72px);
  color: rgba(255, 253, 247, 0.72);
  background: var(--ink);
}

.home-footer .brand-mark {
  color: var(--porcelain);
  background-color: transparent;
  border-color: transparent;
}

.home-footer .brand strong {
  color: var(--porcelain);
}

.home-footer .brand small {
  color: rgba(255, 253, 247, 0.62);
}

.home-footer-nav {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 14px;
  font-size: 13px;
  font-weight: 800;
}

.home-footer-nav a:hover {
  color: var(--porcelain);
}

.page-main {
  padding-top: 0;
}

.page-hero {
  position: relative;
  display: grid;
  min-height: 520px;
  align-items: end;
  padding: 150px clamp(20px, 6vw, 86px) 76px;
  color: var(--porcelain);
  background:
    linear-gradient(90deg, rgba(12, 12, 12, 0.92), rgba(12, 12, 12, 0.46)),
    url("./assets/chopsticks-hero.png") center / cover;
}

.page-hero > div {
  width: min(760px, 100%);
}

.page-hero h1 {
  margin: 0;
  font-family: "Noto Serif SC", "Songti SC", Georgia, serif;
  font-size: clamp(38px, 5.4vw, 76px);
  font-weight: 600;
  line-height: 1.08;
  letter-spacing: 0;
}

.page-hero p:not(.eyebrow) {
  width: min(660px, 100%);
  margin: 22px 0 0;
  color: rgba(255, 253, 247, 0.82);
  font-size: clamp(16px, 1.8vw, 20px);
}

.culture-hero { background-image: linear-gradient(90deg, rgba(12, 12, 12, 0.92), rgba(12, 12, 12, 0.42)), url("./assets/category-chopsticks.jpg"); }
.timeline-hero { background-image: linear-gradient(90deg, rgba(12, 12, 12, 0.92), rgba(12, 12, 12, 0.42)), url("./assets/category-bronze.jpg"); }
.collection-hero { background-image: linear-gradient(90deg, rgba(12, 12, 12, 0.92), rgba(12, 12, 12, 0.42)), url("./assets/category-bowls.jpg"); }
.objects-hero { background-image: linear-gradient(90deg, rgba(12, 12, 12, 0.92), rgba(12, 12, 12, 0.42)), url("./assets/category-porcelain.jpg"); }
.store-hero { background-image: linear-gradient(90deg, rgba(12, 12, 12, 0.92), rgba(12, 12, 12, 0.42)), url("./assets/category-silver.jpg"); }
.mobile-hero { background-image: linear-gradient(90deg, rgba(12, 12, 12, 0.92), rgba(12, 12, 12, 0.42)), url("./assets/category-tea.jpg"); }
.partners-hero { background-image: linear-gradient(90deg, rgba(12, 12, 12, 0.92), rgba(12, 12, 12, 0.42)), url("./assets/category-boxes.jpg"); }

.alternate {
  background: #f2eadc;
}

.principle-grid {
  display: grid;
  max-width: 1180px;
  margin: 0 auto;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 18px;
}

.principle-grid article {
  min-height: 220px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(255, 253, 247, 0.76);
  padding: 24px;
}

.principle-grid span {
  display: grid;
  width: 46px;
  height: 46px;
  place-items: center;
  border-radius: 8px;
  color: var(--porcelain);
  background: var(--jade);
  font-family: "Noto Serif SC", "Songti SC", Georgia, serif;
  font-size: 24px;
}

.principle-grid h3 {
  margin: 18px 0 10px;
  font-size: 22px;
}

.principle-grid p {
  margin: 0;
  color: rgba(20, 20, 20, 0.66);
}

.detail-hero {
  min-height: 500px;
  display: grid;
  align-items: end;
  padding: 150px clamp(20px, 6vw, 86px) 76px;
  color: var(--porcelain);
  background:
    linear-gradient(90deg, rgba(12, 12, 12, 0.92), rgba(12, 12, 12, 0.42)),
    url("./assets/chopsticks-hero.png") center / cover;
}

.detail-hero > div {
  width: min(760px, 100%);
}

.detail-hero h1 {
  margin: 0;
  font-family: "Noto Serif SC", "Songti SC", Georgia, serif;
  font-size: clamp(38px, 5.4vw, 76px);
  line-height: 1.08;
  letter-spacing: 0;
}

.detail-hero p:not(.eyebrow) {
  width: min(680px, 100%);
  margin: 22px 0 0;
  color: rgba(255, 253, 247, 0.82);
  font-size: clamp(16px, 1.8vw, 20px);
}

.detail-layout,
.product-detail-layout {
  display: grid;
  max-width: 1180px;
  margin: 0 auto;
  gap: 28px;
  padding: clamp(56px, 8vw, 96px) clamp(20px, 5vw, 72px);
}

.detail-layout {
  grid-template-columns: minmax(220px, 300px) minmax(0, 1fr);
}

.product-detail-layout {
  grid-template-columns: minmax(280px, 0.92fr) minmax(0, 1.08fr);
}

.detail-summary,
.product-detail-media,
.detail-body {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(255, 253, 247, 0.78);
}

.detail-summary {
  align-self: start;
  display: grid;
  gap: 18px;
  padding: 22px;
  position: sticky;
  top: 96px;
}

.detail-summary-image {
  display: block;
  width: 100%;
  aspect-ratio: 4 / 3;
  border-radius: 8px;
  object-fit: cover;
  background: #eadfce;
}

.detail-summary dl {
  margin: 0;
}

.detail-summary dt {
  color: var(--cinnabar);
  font-size: 12px;
  font-weight: 900;
}

.detail-summary dd {
  margin: 4px 0 0;
  color: rgba(20, 20, 20, 0.68);
}

.detail-body {
  padding: clamp(22px, 4vw, 42px);
}

.section-heading.compact {
  display: block;
  margin: 0 0 22px;
}

.section-heading.compact h2 {
  font-size: clamp(26px, 3vw, 40px);
}

.detail-body > p {
  margin: 0 0 26px;
  color: rgba(20, 20, 20, 0.72);
  font-size: 18px;
}

.detail-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}

.detail-grid article {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(247, 243, 235, 0.7);
  padding: 18px;
}

.detail-grid h3 {
  margin: 0 0 8px;
  font-size: 18px;
}

.detail-grid p {
  margin: 0;
  color: rgba(20, 20, 20, 0.66);
}

.keyword-strip {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 24px 0 0;
}

.keyword-strip span {
  border: 1px solid rgba(49, 88, 75, 0.26);
  border-radius: 999px;
  color: var(--jade);
  background: rgba(49, 88, 75, 0.08);
  padding: 6px 10px;
  font-size: 12px;
  font-weight: 900;
}

.detail-related {
  margin-top: 34px;
}

.related-card-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
}

.related-card {
  align-items: flex-start;
  flex-direction: column;
  border-radius: 8px;
  text-align: left;
}

.related-card span {
  margin-top: 6px;
  color: rgba(20, 20, 20, 0.62);
  font-size: 13px;
  font-weight: 500;
}

.source-note {
  margin-top: 28px;
  border-top: 1px solid var(--line);
  padding-top: 18px;
  color: rgba(20, 20, 20, 0.58);
  font-size: 13px;
}

.source-note a {
  color: var(--ink);
  text-decoration-color: rgba(43, 94, 96, 0.36);
  text-underline-offset: 3px;
}

.product-detail-media {
  align-self: start;
  overflow: hidden;
  position: sticky;
  top: 96px;
}

.product-detail-media > img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
}

.product-detail-media > figcaption {
  padding: 18px 22px;
  color: var(--cinnabar);
  font-size: 24px;
  font-weight: 900;
}

.product-detail-gallery {
  display: grid;
  gap: 10px;
  padding: 0 16px 18px;
}

.product-detail-gallery figure {
  display: grid;
  grid-template-columns: 94px minmax(0, 1fr);
  gap: 12px;
  align-items: center;
  margin: 0;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(247, 243, 235, 0.72);
  padding: 10px;
}

.product-detail-gallery img {
  width: 94px;
  height: 74px;
  border-radius: 6px;
  object-fit: cover;
}

.product-detail-gallery figcaption {
  min-width: 0;
  padding: 0;
  color: rgba(20, 20, 20, 0.7);
  font-size: 13px;
  line-height: 1.45;
}

.product-detail-gallery strong,
.product-detail-gallery span {
  display: block;
}

.product-detail-gallery strong {
  color: var(--ink);
  font-size: 14px;
}

.product-purchase-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 22px;
  border: 1px solid rgba(157, 63, 47, 0.18);
  border-radius: 8px;
  background: rgba(157, 63, 47, 0.07);
  padding: 14px 16px;
}

.product-purchase-bar strong {
  color: var(--cinnabar);
  font-size: 22px;
}

.auth-hero {
  display: flex;
  min-height: 430px;
  align-items: flex-end;
  color: var(--porcelain);
  background:
    linear-gradient(90deg, rgba(20, 20, 20, 0.9), rgba(20, 20, 20, 0.42)),
    url("./assets/chopsticks-hero.png") center / cover;
  padding: 150px clamp(20px, 6vw, 86px) 62px;
}

.auth-hero > div {
  width: min(720px, 100%);
}

.auth-hero h1 {
  margin: 0;
  font-family: "Noto Serif SC", "Songti SC", Georgia, serif;
  font-size: clamp(40px, 5vw, 72px);
  line-height: 1.08;
}

.auth-hero p:not(.eyebrow) {
  width: min(660px, 100%);
  margin: 20px 0 0;
  color: rgba(255, 253, 247, 0.82);
  font-size: 18px;
}

.auth-hero .button {
  margin-top: 24px;
}

.auth-layout,
.account-layout {
  display: grid;
  width: min(1180px, 100%);
  margin: 0 auto;
  gap: 28px;
  padding: clamp(48px, 7vw, 82px) clamp(20px, 5vw, 72px);
}

.auth-layout {
  grid-template-columns: minmax(0, 1.05fr) minmax(280px, 0.75fr);
  align-items: start;
}

.auth-panel,
.auth-aside,
.account-summary,
.account-section {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(255, 253, 247, 0.82);
  box-shadow: 0 16px 46px rgba(20, 20, 20, 0.06);
}

.auth-panel {
  padding: clamp(22px, 4vw, 42px);
}

.auth-form {
  display: grid;
  gap: 16px;
}

.auth-mode-tabs {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 8px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(49, 88, 75, 0.06);
  padding: 5px;
}

.auth-mode-tabs button {
  min-height: 38px;
  border: 0;
  border-radius: 999px;
  color: var(--jade);
  background: transparent;
  font: inherit;
  font-size: 13px;
  font-weight: 900;
  cursor: pointer;
}

.auth-mode-tabs button.is-active {
  color: var(--porcelain);
  background: var(--jade);
  box-shadow: 0 10px 22px rgba(49, 88, 75, 0.16);
}

.auth-mode-hint,
.auth-status {
  margin: 0;
  color: rgba(20, 20, 20, 0.62);
  font-size: 13px;
  line-height: 1.55;
}

.auth-status {
  border: 1px solid rgba(173, 139, 87, 0.28);
  border-radius: 8px;
  background: rgba(173, 139, 87, 0.1);
  padding: 10px 12px;
}

.auth-captcha {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: end;
  gap: 10px;
}

.auth-captcha-preview {
  display: grid;
  grid-template-columns: 142px auto;
  gap: 8px;
  align-items: center;
}

.auth-captcha canvas {
  width: 142px;
  height: 48px;
  border: 1px solid rgba(49, 88, 75, 0.22);
  border-radius: 8px;
  background: var(--porcelain);
}

.auth-captcha .button {
  min-height: 48px;
  white-space: nowrap;
}

.auth-code-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: end;
  gap: 10px;
}

.auth-code-row .button {
  min-height: 48px;
  white-space: nowrap;
}

.auth-form label {
  display: grid;
  gap: 8px;
  color: var(--jade);
  font-size: 13px;
  font-weight: 900;
}

.auth-form input,
.auth-form select {
  width: 100%;
  min-height: 48px;
  border: 1px solid var(--line);
  border-radius: 8px;
  color: var(--ink);
  background: var(--porcelain);
  padding: 0 14px;
  font: inherit;
  outline: none;
}

.auth-form input:focus,
.auth-form select:focus {
  border-color: rgba(49, 88, 75, 0.52);
  box-shadow: 0 0 0 3px rgba(49, 88, 75, 0.1);
}

.button.ghost {
  border: 1px solid var(--line);
  color: var(--ink);
  background: var(--porcelain);
}

.auth-aside {
  display: grid;
  gap: 12px;
  padding: 18px;
}

.auth-aside article,
.account-service-grid article {
  border: 1px solid rgba(49, 88, 75, 0.16);
  border-radius: 8px;
  background: rgba(49, 88, 75, 0.06);
  padding: 16px;
}

.auth-aside strong,
.auth-aside span {
  display: block;
}

.auth-aside strong {
  color: var(--jade);
  font-size: 16px;
}

.auth-aside span,
.account-service-grid p,
.account-cart-list p {
  margin: 6px 0 0;
  color: rgba(20, 20, 20, 0.64);
}

.signed-card {
  display: grid;
  gap: 10px;
}

.signed-card span,
.account-summary span {
  color: var(--cinnabar);
  font-size: 12px;
  font-weight: 900;
}

.signed-card h2,
.account-summary h2 {
  margin: 0;
  font-family: "Noto Serif SC", "Songti SC", Georgia, serif;
  font-size: 34px;
}

.signed-card p,
.account-summary p {
  margin: 0;
  color: rgba(20, 20, 20, 0.64);
}

.account-layout {
  grid-template-columns: minmax(260px, 0.35fr) minmax(0, 1fr);
  align-items: start;
}

.account-summary {
  position: sticky;
  top: 96px;
  display: grid;
  gap: 12px;
  padding: 22px;
}

.member-avatar {
  display: grid;
  width: 64px;
  height: 64px;
  place-items: center;
  border-radius: 50%;
  color: var(--porcelain);
  background: var(--jade);
  font-family: "Noto Serif SC", "Songti SC", Georgia, serif;
  font-size: 28px;
  font-weight: 900;
}

.account-stat-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
  margin: 10px 0;
}

.account-stat-grid strong {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(247, 243, 235, 0.72);
  padding: 14px;
}

.account-stat-grid b,
.account-stat-grid small {
  display: block;
}

.account-stat-grid b {
  color: var(--cinnabar);
  font-size: 24px;
}

.account-stat-grid small {
  color: rgba(20, 20, 20, 0.58);
  font-size: 12px;
}

.account-main {
  display: grid;
  gap: 18px;
}

.account-section {
  padding: clamp(20px, 4vw, 34px);
}

.account-cart-list {
  display: grid;
  gap: 10px;
}

.account-cart-list article {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto auto;
  gap: 12px;
  align-items: center;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(247, 243, 235, 0.72);
  padding: 14px;
}

.account-cart-list span {
  color: rgba(20, 20, 20, 0.6);
  font-size: 13px;
}

.account-cart-list b {
  color: var(--cinnabar);
}

.account-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 18px;
}

.account-service-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}

.account-service-grid h3 {
  margin: 0;
  color: var(--jade);
  font-size: 18px;
}

.compact-form {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.compact-form button {
  align-self: end;
}

.product-buyer-panel {
  margin-bottom: 28px;
}

.product-buyer-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}

.product-buyer-grid article {
  border: 1px solid rgba(49, 88, 75, 0.18);
  border-radius: 8px;
  background: rgba(49, 88, 75, 0.06);
  padding: 16px;
}

.product-buyer-grid h3 {
  margin: 0 0 8px;
  color: var(--jade);
  font-size: 17px;
}

.product-buyer-grid p {
  margin: 0;
  color: rgba(20, 20, 20, 0.68);
}

.product-detail-points {
  margin: 28px 0;
}

.product-detail-points ul {
  display: grid;
  gap: 10px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.product-detail-points li {
  border-left: 3px solid var(--cinnabar);
  background: rgba(157, 63, 47, 0.06);
  padding: 12px 14px;
  color: rgba(20, 20, 20, 0.7);
  line-height: 1.7;
}

.glossary-item em,
.glossary-item strong {
  display: block;
  margin-top: 8px;
  color: rgba(20, 20, 20, 0.66);
  font-size: 13px;
  font-style: normal;
  line-height: 1.45;
}

.glossary-item strong {
  color: var(--jade);
}

.site-footer {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  padding: 28px clamp(20px, 5vw, 72px);
  color: rgba(255, 253, 247, 0.68);
  background: var(--ink);
}

@media (max-width: 980px) {
  .site-header {
    grid-template-columns: 1fr;
    gap: 12px;
  }

  .home-header {
    grid-template-columns: minmax(0, 1fr) auto;
    gap: 12px;
  }

  .home-header .language-tabs {
    grid-column: 2;
    grid-row: 1;
    justify-self: end;
  }

  .home-header-nav {
    grid-column: 1 / -1;
    grid-row: 2;
    flex-wrap: wrap;
    justify-content: center;
    gap: 8px 14px;
    overflow: visible;
    padding-bottom: 0;
  }

  .home-header-nav a {
    flex: 0 1 auto;
  }

  .nav {
    flex-wrap: wrap;
  }

  .principle-grid,
  .collection-grid,
  .product-grid,
  .store-history-grid,
  .object-record-grid,
  .artifact-grid,
  .region-grid,
  .story-grid,
  .glossary-grid,
  .business-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .detail-layout,
  .product-detail-layout,
  .auth-layout,
  .account-layout {
    grid-template-columns: 1fr;
  }

  .detail-summary,
  .product-detail-media,
  .account-summary {
    position: static;
  }

  .product-detail-gallery {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .product-detail-gallery figure {
    grid-template-columns: 1fr;
  }

  .product-detail-gallery img {
    width: 100%;
    height: auto;
    aspect-ratio: 4 / 3;
  }

  .home-hero {
    grid-template-columns: 1fr;
    align-content: center;
    width: min(720px, 100%);
    gap: 26px;
  }

  .home-nav {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .home-app-download {
    grid-template-columns: 1fr;
    margin-top: 0;
  }

  .home-app-download-actions {
    justify-content: flex-start;
  }

  .home-nav a:first-child {
    grid-column: auto;
  }
}

@media (max-width: 640px) {
  .home-footer,
  .site-footer {
    align-items: flex-start;
  }

  .home-header {
    gap: 10px 12px;
    padding: 12px 16px;
  }

  .home-header .brand {
    min-width: 0;
  }

  .home-header .brand > span:not(.brand-mark) {
    min-width: 0;
  }

  .home-header .brand strong {
    overflow: hidden;
    text-overflow: ellipsis;
  }

  .home-header .brand small {
    display: none;
  }

  .home-header .language-tabs {
    width: clamp(118px, 34vw, 146px);
    max-width: 100%;
    gap: 3px;
    padding: 3px;
  }

  .home-header .language-tabs button {
    flex: 1 1 0;
    width: auto;
    min-width: 0;
    height: 30px;
    padding: 0;
    font-size: 11px;
  }

  .home-header-nav {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 8px;
    width: 100%;
    overflow: visible;
    padding-bottom: 0;
  }

  .home-header-nav a {
    display: flex;
    min-width: 0;
    min-height: 34px;
    align-items: center;
    justify-content: center;
    border: 1px solid var(--line);
    border-radius: 999px;
    background: var(--porcelain);
    padding: 6px 8px;
    font-size: 13px;
    text-align: center;
  }

  .home-login-link::before {
    display: none;
  }

  .home-login-link {
    color: var(--ink);
  }

  .nav-account,
  .nav-action {
    min-width: auto;
    padding: 9px 11px;
    font-size: 13px;
  }

  .header-actions {
    flex-wrap: wrap;
    justify-content: flex-start;
  }

  .home-shell {
    gap: 42px;
    padding: 26px 16px 58px;
  }

  .home-hero {
    width: 100%;
    gap: 24px;
  }

  .home-hero h1 {
    font-size: 38px;
  }

  .page-hero h1 {
    font-size: 42px;
  }

  .home-statement {
    margin-top: 18px;
    font-size: 16px;
  }

  .home-actions {
    display: grid;
    grid-template-columns: 1fr;
    margin-top: 22px;
  }

  .home-primary,
  .home-secondary {
    width: 100%;
    min-width: 0;
    padding-right: 12px;
    padding-left: 12px;
  }

  .home-visual figcaption {
    right: 10px;
    bottom: 10px;
    left: 10px;
  }

  .home-app-download {
    gap: 14px;
    padding: 15px;
  }

  .home-app-download-copy {
    grid-template-columns: 46px minmax(0, 1fr);
    gap: 12px;
  }

  .home-app-download-copy img {
    width: 46px;
    height: 46px;
    border-radius: 12px;
  }

  .home-app-download-actions {
    display: grid;
    grid-template-columns: 1fr;
    width: 100%;
  }

  .home-app-download-primary,
  .home-app-download-secondary {
    width: 100%;
    min-width: 0;
    padding-right: 10px;
    padding-left: 10px;
  }

  .home-section-head {
    display: grid;
    gap: 8px;
  }

  .home-nav {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 8px;
  }

  .home-nav a {
    min-height: auto;
    padding: 11px 12px;
    text-align: center;
  }

  .home-nav small {
    display: none;
  }

  .home-footer {
    grid-template-columns: 1fr;
    gap: 12px;
  }

  .home-footer-nav {
    justify-content: flex-start;
  }

  .home-metrics {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    width: 100%;
    gap: 8px;
  }

  .home-metrics span {
    display: grid;
    min-width: 0;
    min-height: 58px;
    align-content: center;
    justify-items: center;
    gap: 1px;
    border-radius: 8px;
    padding: 7px 4px;
    text-align: center;
  }

  .home-metrics strong {
    font-size: 21px;
  }

  .home-metrics small {
    font-size: 10px;
    line-height: 1.15;
    word-break: keep-all;
    white-space: nowrap;
  }

  .page-hero {
    min-height: 460px;
    padding: 138px 20px 54px;
  }

  .auth-hero {
    min-height: 360px;
    padding: 150px 20px 46px;
  }

  .auth-layout,
  .account-layout {
    padding: 34px 16px 56px;
  }

  .principle-grid,
  .collection-grid,
  .product-grid,
  .store-history-grid,
  .object-record-grid,
  .database-stats,
  .artifact-grid,
  .region-grid,
  .story-grid,
  .glossary-grid,
  .business-grid {
    grid-template-columns: 1fr;
  }

  .facet-group,
  .detail-grid,
  .related-card-grid,
  .account-service-grid,
  .compact-form,
  .account-cart-list article {
    grid-template-columns: 1fr;
  }

  .product-card-foot,
  .product-purchase-bar {
    align-items: flex-start;
    flex-direction: column;
  }
}

@media (max-width: 360px) {
  .home-header {
    grid-template-columns: 1fr;
  }

  .home-header .language-tabs {
    grid-column: 1;
    grid-row: 2;
    justify-self: stretch;
    width: 100%;
  }

  .home-header-nav {
    grid-row: 3;
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .home-actions,
  .home-app-download-actions,
  .home-metrics,
  .home-nav {
    grid-template-columns: 1fr;
  }

  .home-metrics span {
    min-height: 46px;
    grid-template-columns: auto auto;
    justify-content: center;
    border-radius: 999px;
    gap: 6px;
  }
}

/* Mobile page normalization: keep section pages navigable and prevent the
   fixed header from covering hero content. */
@media (max-width: 900px) {
  .site-header {
    grid-template-columns: minmax(0, 1fr) auto;
    gap: 10px;
    padding: 12px 16px;
    background: rgba(20, 20, 20, 0.94);
    box-shadow: 0 12px 32px rgba(0, 0, 0, 0.22);
    backdrop-filter: blur(14px);
  }

  .site-header .brand {
    width: 100%;
  }

  .site-header .language-tabs {
    grid-column: 2;
    grid-row: 1;
    justify-self: start;
  }

  .site-header .header-actions {
    grid-column: 1 / -1;
    grid-row: 3;
  }

  .nav {
    display: flex;
    grid-column: 1 / -1;
    grid-row: 2;
    width: 100%;
    gap: 8px;
    flex-wrap: nowrap;
    overflow-x: auto;
    padding-bottom: 2px;
    scrollbar-width: none;
  }

  .nav::-webkit-scrollbar {
    display: none;
  }

  .nav a {
    flex: 0 0 auto;
    min-height: 34px;
    border: 1px solid var(--white-line);
    border-radius: 999px;
    background: rgba(255, 253, 247, 0.08);
    padding: 6px 11px;
    color: rgba(255, 253, 247, 0.88);
    font-size: 13px;
    font-weight: 800;
  }

  .nav a.is-active {
    border-color: var(--bronze);
    color: var(--porcelain);
    background: rgba(173, 139, 87, 0.22);
  }

  .page-hero,
  .detail-hero,
  .auth-hero {
    padding-top: 206px;
  }
}

@media (max-width: 640px) {
  .page-hero {
    min-height: 470px;
    padding: 166px 20px 48px;
  }

  .detail-hero {
    min-height: 340px;
    padding: 158px 20px 40px;
  }

  .auth-hero {
    min-height: 340px;
    padding: 206px 20px 42px;
  }

  .detail-hero h1 {
    font-size: 38px;
  }

  .detail-layout,
  .product-detail-layout,
  .auth-layout,
  .account-layout {
    padding: 34px 16px 56px;
  }

  .auth-mode-tabs,
  .auth-captcha,
  .auth-captcha-preview,
  .auth-code-row {
    grid-template-columns: 1fr;
    border-radius: 8px;
  }

  .auth-mode-tabs button {
    border-radius: 8px;
  }

  .detail-body {
    padding: 20px;
  }

  .product-buyer-grid,
  .detail-grid,
  .related-card-grid,
  .product-detail-gallery {
    grid-template-columns: 1fr;
  }

  .product-detail-gallery figure {
    grid-template-columns: 86px minmax(0, 1fr);
  }

  .product-detail-gallery img {
    width: 86px;
    height: 68px;
    aspect-ratio: auto;
  }
}

.payment-result {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 32px 18px;
  background: #f4f2ec;
}

.payment-result-panel {
  width: min(560px, 100%);
  padding: 36px;
  border: 1px solid rgba(20, 20, 20, 0.16);
  border-radius: 8px;
  background: #fff;
  box-shadow: 0 18px 44px rgba(20, 20, 20, 0.08);
}

.payment-result-panel h1 {
  margin: 10px 0 14px;
  font-size: clamp(28px, 5vw, 42px);
  letter-spacing: 0;
}

.payment-result-panel p:not(.eyebrow) {
  margin: 0 0 24px;
  color: rgba(20, 20, 20, 0.7);
  line-height: 1.8;
}