:root {
  --black: #050505;
  --ink: #11100e;
  --panel: #171411;
  --gold: #c9a45d;
  --gold-soft: #f0d18a;
  --text: #f5f0e7;
  --muted: #bdb4a5;
  --line: rgba(201, 164, 93, 0.28);
  --white-line: rgba(255, 255, 255, 0.16);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: "Didot", "Bodoni 72", "Noto Serif SC", "Source Han Serif SC", Georgia, serif;
  color: var(--text);
  background: var(--black);
}

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

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

.site-header {
  position: fixed;
  inset: 0 0 auto;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 22px clamp(20px, 5vw, 72px);
  border-bottom: 1px solid transparent;
  transition: background 240ms ease, border-color 240ms ease, padding 240ms ease;
}

.site-header.is-scrolled,
.site-header.is-open {
  background: rgba(5, 5, 5, 0.88);
  border-color: var(--line);
  backdrop-filter: blur(18px);
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  letter-spacing: 0;
}

.brand-mark {
  display: grid;
  place-items: center;
  width: 42px;
  height: 42px;
  border: 1px solid var(--gold);
  color: var(--gold-soft);
  font-size: 15px;
}

.brand-logo {
  display: grid;
  place-items: center;
  width: 58px;
  height: 42px;
  overflow: hidden;
}

.brand-logo img {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.brand strong {
  display: block;
  font-size: 17px;
  text-transform: uppercase;
}

.brand small {
  display: block;
  margin-top: 3px;
  color: var(--muted);
  font-family: Arial, "Microsoft YaHei", sans-serif;
  font-size: 11px;
}

.nav {
  display: flex;
  align-items: center;
  gap: 34px;
  font-family: Arial, "Microsoft YaHei", sans-serif;
  font-size: 14px;
  color: rgba(245, 240, 231, 0.86);
}

.nav a,
.nav-item > a {
  position: relative;
  padding: 8px 0;
}

.nav a::after,
.nav-item > a::after {
  position: absolute;
  right: 0;
  bottom: 0;
  left: 0;
  height: 1px;
  background: var(--gold);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 180ms ease;
  content: "";
}

.nav a:hover::after {
  transform: scaleX(1);
}

.nav-item {
  position: relative;
}

.nav-menu {
  position: absolute;
  top: calc(100% + 14px);
  left: 50%;
  min-width: 170px;
  padding: 12px;
  border: 1px solid var(--line);
  background: rgba(5, 5, 5, 0.94);
  opacity: 0;
  pointer-events: none;
  transform: translate(-50%, 8px);
  transition: opacity 180ms ease, transform 180ms ease;
}

.nav-item:hover .nav-menu,
.nav-item:focus-within .nav-menu {
  opacity: 1;
  pointer-events: auto;
  transform: translate(-50%, 0);
}

.nav-menu a {
  display: block;
  padding: 10px 12px;
  color: var(--gold-soft);
}

.menu-toggle {
  display: none;
  width: 42px;
  height: 42px;
  border: 1px solid var(--line);
  background: rgba(0, 0, 0, 0.22);
  color: var(--text);
}

.menu-toggle span {
  display: block;
  width: 18px;
  height: 1px;
  margin: 5px auto;
  background: var(--gold-soft);
}

.hero {
  position: relative;
  min-height: 100vh;
  overflow: hidden;
}

.hero-media,
.hero-overlay {
  position: absolute;
  inset: 0;
}

.hero-media {
  background-image: url("/assets/hero/golden-mansion-hero-v4.jpg");
  background-position: center;
  background-size: cover;
  transform: scale(1.02);
}

.hero-overlay {
  background:
    linear-gradient(90deg, rgba(5, 5, 5, 0.9), rgba(5, 5, 5, 0.34) 42%, rgba(5, 5, 5, 0.04)),
    linear-gradient(0deg, rgba(5, 5, 5, 0.9), rgba(5, 5, 5, 0.04) 48%, rgba(5, 5, 5, 0.22));
}

.hero-content {
  position: relative;
  z-index: 1;
  width: min(850px, calc(100% - 40px));
  padding: 24vh 0 170px clamp(20px, 7vw, 96px);
}

.eyebrow {
  margin: 0 0 18px;
  color: var(--gold-soft);
  font-family: Arial, "Microsoft YaHei", sans-serif;
  font-size: 12px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1 {
  max-width: 760px;
  margin-bottom: 28px;
  font-size: clamp(54px, 8.6vw, 138px);
  font-weight: 400;
  line-height: 0.88;
}

h1 span {
  display: block;
}

h1 span:first-child {
  color: var(--gold-soft);
  font-style: italic;
}

h1 span:last-child {
  color: rgba(245, 240, 231, 0.94);
  font-size: 0.62em;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.hero-copy {
  position: relative;
  max-width: 560px;
  padding-left: 28px;
  color: rgba(245, 240, 231, 0.82);
  font-family: Arial, "Microsoft YaHei", sans-serif;
  font-size: 17px;
  line-height: 1.85;
}

.hero-copy::before {
  position: absolute;
  top: 9px;
  bottom: 9px;
  left: 0;
  width: 1px;
  background: var(--gold);
  content: "";
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 36px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0 24px;
  border: 1px solid var(--gold);
  font-family: Arial, "Microsoft YaHei", sans-serif;
  font-size: 14px;
  transition: transform 180ms ease, background 180ms ease, color 180ms ease;
}

.btn:hover {
  transform: translateY(-2px);
}

.btn-primary {
  background: var(--gold);
  color: #130f09;
}

.btn-ghost {
  color: var(--gold-soft);
  background: rgba(0, 0, 0, 0.2);
}

.hero-stats {
  position: absolute;
  right: clamp(20px, 5vw, 72px);
  bottom: 36px;
  left: clamp(20px, 5vw, 72px);
  z-index: 1;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  border-top: 1px solid var(--line);
  background: rgba(5, 5, 5, 0.44);
  backdrop-filter: blur(14px);
}

.hero-stats div {
  padding: 22px 28px;
  border-right: 1px solid var(--line);
}

.hero-stats div:last-child {
  border-right: 0;
}

.hero-stats strong {
  display: block;
  margin-bottom: 6px;
  color: var(--gold-soft);
  font-size: 32px;
  font-weight: 500;
}

.hero-stats span,
.section-head p,
.product-card p,
.about-content p,
.project-info p,
.contact-copy p,
.contact-panel p,
.footer {
  font-family: Arial, "Microsoft YaHei", sans-serif;
  color: var(--muted);
  line-height: 1.75;
}

.section {
  padding: 110px clamp(20px, 5vw, 72px);
}

.section-head {
  display: grid;
  grid-template-columns: 0.8fr 1.1fr;
  gap: 42px;
  align-items: end;
  max-width: 1180px;
  margin: 0 auto 46px;
}

.section-head h2,
.about-content h2,
.contact-copy h2 {
  margin-bottom: 0;
  font-size: clamp(34px, 4.5vw, 62px);
  font-weight: 500;
  line-height: 1.1;
}

.art-head h2,
.factory-head h2,
.factory-copy h2 {
  font-size: clamp(44px, 6vw, 88px);
  line-height: 0.95;
}

.art-head h2 span,
.factory-head h2 span,
.factory-copy h2 span {
  display: block;
}

.art-head h2 span:first-child {
  color: var(--gold-soft);
  font-style: italic;
}

.factory-head h2,
.factory-copy h2 {
  color: rgba(245, 240, 231, 0.96);
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.factory-head h2 span:last-child,
.factory-copy h2 span:last-child {
  color: var(--gold-soft);
  font-size: 0.58em;
}

.factory-line {
  margin: 20px 0 16px;
  color: var(--gold-soft) !important;
  font-size: 28px;
  text-transform: uppercase;
}

.section-head p:last-child {
  max-width: 560px;
  margin-bottom: 6px;
}

.product-section {
  background: #090806;
}

.product-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  max-width: 1340px;
  margin: 0 auto;
  background: var(--line);
  border: 1px solid var(--line);
}

.product-card {
  min-height: 520px;
  background: var(--panel);
}

.product-card img,
.product-symbol {
  height: 285px;
  filter: saturate(0.92) contrast(1.04);
}

.product-symbol {
  position: relative;
  display: grid;
  place-items: center;
  overflow: hidden;
  background:
    linear-gradient(145deg, rgba(201, 164, 93, 0.18), transparent 48%),
    radial-gradient(circle at 50% 42%, rgba(240, 209, 138, 0.18), transparent 36%),
    #0b0a08;
}

.product-symbol::before {
  position: absolute;
  width: 108px;
  height: 168px;
  border: 2px solid rgba(240, 209, 138, 0.72);
  border-radius: 999px 999px 22px 22px;
  content: "";
}

.product-symbol::after {
  position: absolute;
  width: 10px;
  height: 10px;
  border: 1px solid var(--gold-soft);
  border-radius: 50%;
  transform: translate(32px, 34px);
  content: "";
}

.product-symbol span {
  position: relative;
  z-index: 1;
  color: var(--gold-soft);
  font-size: 24px;
}

.product-card div {
  padding: 28px;
}

.product-card span {
  color: var(--gold);
  font-size: 13px;
}

.product-card h3 {
  margin: 14px 0 12px;
  font-size: 28px;
  font-weight: 500;
}

.boutique-section {
  background:
    linear-gradient(180deg, #050505, #090806 52%, #050505);
}

.boutique-grid {
  display: grid;
  grid-template-columns: 1.2fr repeat(2, minmax(0, 0.9fr));
  gap: 18px;
  max-width: 1340px;
  margin: 0 auto;
}

.boutique-card {
  position: relative;
  display: grid;
  min-height: 520px;
  overflow: hidden;
  border: 1px solid var(--line);
  background: #11100e;
  transition: border-color 180ms ease, transform 180ms ease;
}

.boutique-card.large {
  grid-row: span 2;
  min-height: 720px;
}

.boutique-card:hover,
.boutique-card:focus-visible {
  border-color: rgba(240, 209, 138, 0.76);
  transform: translateY(-4px);
}

.boutique-card img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  filter: saturate(0.96) contrast(1.05);
  transition: transform 320ms ease;
}

.boutique-card:hover img,
.boutique-card:focus-visible img {
  transform: scale(1.035);
}

.boutique-card::after {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(180deg, transparent 35%, rgba(5, 5, 5, 0.88)),
    linear-gradient(90deg, rgba(5, 5, 5, 0.22), transparent 55%);
  content: "";
}

.boutique-card div {
  position: relative;
  z-index: 1;
  align-self: end;
  padding: 28px;
}

.boutique-card span {
  color: var(--gold-soft);
  font: 12px Arial, "Microsoft YaHei", sans-serif;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.boutique-card h3 {
  max-width: 520px;
  margin: 12px 0 12px;
  color: #fff7e7;
  font-size: clamp(28px, 3.2vw, 48px);
  font-weight: 500;
  line-height: 1.05;
}

.boutique-card:not(.large) h3 {
  font-size: clamp(24px, 2.4vw, 34px);
}

.boutique-card p {
  max-width: 520px;
  margin: 0;
  color: rgba(226, 218, 202, 0.88);
  font-family: Arial, "Microsoft YaHei", sans-serif;
  line-height: 1.65;
}

.about {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(320px, 0.95fr);
  min-height: 760px;
  background: var(--black);
}

.about-image {
  min-height: 520px;
}

.about-content {
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 90px clamp(24px, 6vw, 88px);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.about-content h2 {
  margin-bottom: 28px;
}

.about-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
  margin-top: 24px;
  font-family: Arial, "Microsoft YaHei", sans-serif;
}

.about-list span {
  padding: 14px 16px;
  border: 1px solid var(--line);
  color: var(--gold-soft);
  background: rgba(201, 164, 93, 0.05);
}

.projects {
  background: #0c0b09;
}

.catalog {
  background: #080706;
}

.catalog-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 18px;
  max-width: 1340px;
  margin: 0 auto;
}

.catalog-card {
  display: block;
  overflow: hidden;
  border: 1px solid var(--line);
  background: #14110e;
  transition: transform 180ms ease, border-color 180ms ease;
}

.catalog-card:hover {
  border-color: rgba(240, 209, 138, 0.68);
  transform: translateY(-4px);
}

.catalog-card img,
.catalog-visual {
  aspect-ratio: 1 / 1;
  width: 100%;
  height: auto;
  object-fit: contain;
  background: #050403;
}

.home-copper-grid .catalog-card img {
  object-fit: cover;
}

.product-line-card img {
  aspect-ratio: 4 / 5;
  object-fit: cover;
}

.product-line-card.line-railings img {
  aspect-ratio: 4 / 3;
  object-position: center;
}

.product-line-card.line-sculptures img,
.product-line-card.line-church img {
  object-position: center;
}

.product-line-card.line-church img {
  object-fit: cover;
  object-position: center top;
  background: #080706;
}

.catalog-card div p,
.product-line-card div p {
  line-height: 1.72;
}

.catalog-visual {
  position: relative;
  display: grid;
  place-items: center;
  overflow: hidden;
  border-bottom: 1px solid var(--line);
}

.catalog-visual::before {
  position: absolute;
  inset: 15%;
  border: 1px solid rgba(240, 209, 138, 0.44);
  content: "";
}

.catalog-visual::after {
  position: absolute;
  width: 42%;
  height: 62%;
  border: 2px solid rgba(240, 209, 138, 0.72);
  border-radius: 999px 999px 22px 22px;
  box-shadow: inset 0 0 0 14px rgba(201, 164, 93, 0.08);
  content: "";
}

.catalog-visual span {
  position: absolute;
  top: 28px;
  left: 28px;
  z-index: 1;
  color: rgba(240, 209, 138, 0.5);
  font-size: 64px;
}

.catalog-visual strong {
  position: relative;
  z-index: 1;
  max-width: 190px;
  color: var(--gold-soft);
  font-size: 26px;
  font-weight: 500;
  line-height: 1.1;
  text-align: center;
}

.catalog-card div {
  min-height: 176px;
  padding: 22px;
}

.catalog-card span {
  color: var(--gold-soft);
  font-family: Arial, "Microsoft YaHei", sans-serif;
  font-size: 11px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.catalog-card h3 {
  margin: 12px 0 10px;
  font-size: 23px;
  font-weight: 500;
  line-height: 1.2;
}

.catalog-card p {
  margin-bottom: 0;
  font-family: Arial, "Microsoft YaHei", sans-serif;
  color: var(--muted);
  line-height: 1.65;
}

.featured-copper {
  background: #050505;
}

.home-copper-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 18px;
  max-width: 1340px;
  margin: 0 auto;
}

.center-action {
  display: flex;
  justify-content: center;
  margin-top: 34px;
}

.craft-section {
  background: #080706;
}

.craft-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
  max-width: 1340px;
  margin: 0 auto;
}

.craft-grid article {
  border: 1px solid var(--line);
  background: #14110e;
}

.craft-grid img {
  aspect-ratio: 4 / 5;
  height: auto;
}

.craft-grid h3 {
  padding: 22px;
  margin: 0;
  color: var(--gold-soft);
  font-size: 24px;
  font-weight: 500;
}

.proof-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 18px;
  max-width: 1340px;
  margin: 0 auto;
}

.proof-card {
  overflow: hidden;
  border: 1px solid var(--line);
  background: #11100e;
}

.proof-card h3 {
  margin: 0;
  padding: 20px 22px;
  color: var(--gold-soft);
  font-size: 22px;
  font-weight: 500;
}

.proof-media {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--line);
}

.proof-media img,
.proof-card video {
  aspect-ratio: 4 / 5;
  width: 100%;
  height: auto;
  object-fit: cover;
  background: #050403;
}

.proof-card video {
  display: block;
  aspect-ratio: 16 / 10;
}

.capability-section,
.process-section,
.buyer-section,
.faq-section {
  background: #050505;
}

.capability-grid,
.process-grid,
.buyer-grid,
.faq-grid {
  display: grid;
  max-width: 1340px;
  margin: 0 auto;
  gap: 18px;
}

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

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

.capability-grid article,
.process-grid article,
.buyer-grid article,
.faq-grid article {
  min-height: 260px;
  padding: 28px;
  border: 1px solid var(--line);
  background: linear-gradient(180deg, rgba(201, 164, 93, 0.08), rgba(15, 13, 10, 0.62));
}

.capability-grid span,
.process-grid span {
  color: var(--gold-soft);
  font-family: Arial, "Microsoft YaHei", sans-serif;
  font-size: 12px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.capability-grid h3,
.process-grid h3,
.buyer-grid h3,
.faq-grid h3 {
  margin: 22px 0 14px;
  color: rgba(245, 240, 231, 0.96);
  font-size: clamp(24px, 2.2vw, 34px);
  font-weight: 500;
  line-height: 1.12;
}

.buyer-grid h3,
.faq-grid h3 {
  margin-top: 0;
}

.capability-grid p,
.process-grid p,
.buyer-grid p,
.faq-grid p {
  margin: 0;
  color: var(--muted);
  font-family: Arial, "Microsoft YaHei", sans-serif;
  line-height: 1.75;
}

.process-section {
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.featured-line {
  background: #050505;
}

.brand-film {
  background: #080706;
}

.film-frame {
  max-width: 1180px;
  margin: 0 auto;
  border: 1px solid var(--line);
  background: #050403;
}

.film-frame video {
  display: block;
  width: 100%;
  aspect-ratio: 16 / 9;
  background: #050403;
}

.detail-video {
  max-width: 980px;
}

.scene-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
  max-width: 1340px;
  margin: 0 auto;
}

.scene-card {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  min-height: 320px;
  border: 1px solid var(--line);
  background: #11100e;
}

.scene-card div {
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 36px;
}

.scene-card span {
  color: var(--gold-soft);
  font-family: Arial, "Microsoft YaHei", sans-serif;
  font-size: 12px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.scene-card h3 {
  margin: 14px 0 14px;
  font-size: 34px;
  font-weight: 500;
}

.scene-card p {
  margin: 0;
  color: var(--muted);
  font-family: Arial, "Microsoft YaHei", sans-serif;
  line-height: 1.7;
}

.scene-card img {
  min-height: 320px;
  object-fit: cover;
}

.subpage {
  padding-top: 96px;
}

.detail-hero {
  display: grid;
  grid-template-columns: minmax(0, 0.86fr) minmax(340px, 1.14fr);
  gap: 40px;
  align-items: center;
  padding: 130px clamp(20px, 7vw, 96px) 70px;
  background: #050505;
}

.detail-hero h1 {
  font-size: clamp(56px, 8vw, 118px);
  line-height: 1.08;
}

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

.detail-hero h1 span:last-child {
  margin-top: 14px;
  font-size: 0.56em;
  letter-spacing: 0.04em;
}

.detail-hero .hero-copy {
  max-width: 760px;
  margin-top: 28px;
  line-height: 1.85;
}

.detail-hero img {
  width: 100%;
  max-height: 720px;
  object-fit: contain;
  border: 1px solid var(--line);
  background: #11100e;
}

.detail-specs-section {
  padding-top: 28px;
  padding-bottom: 28px;
  background: #080706;
}

.detail-specs {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
  max-width: 1340px;
  margin: 0 auto;
}

.detail-specs article {
  min-height: 130px;
  padding: 24px;
  border: 1px solid var(--line);
  background: linear-gradient(135deg, rgba(201, 164, 93, 0.08), rgba(255, 255, 255, 0.02));
}

.detail-specs span {
  display: block;
  margin-bottom: 16px;
  color: var(--gold-soft);
  font-family: Arial, "Microsoft YaHei", sans-serif;
  font-size: 12px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
}

.detail-specs p {
  margin: 0;
  color: var(--text);
  font-family: Arial, "Microsoft YaHei", sans-serif;
  font-size: 16px;
  line-height: 1.75;
}

.scene-preview {
  max-width: 1180px;
  margin: 0 auto;
  border: 1px solid var(--line);
}

.scene-preview img {
  aspect-ratio: 16 / 9;
  height: auto;
}

.detail-section {
  max-width: 1340px;
  margin: 92px auto 0;
  padding-top: 70px;
  border-top: 1px solid var(--line);
}

.section-head.compact {
  margin-right: 0;
  margin-left: 0;
}

.detail-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.detail-card {
  position: relative;
  overflow: hidden;
  border: 1px solid var(--line);
  background: #14110e;
}

.detail-card img {
  aspect-ratio: 4 / 5;
  width: 100%;
  height: auto;
  object-fit: contain;
  background: #050403;
}

.detail-card span {
  position: absolute;
  right: 14px;
  bottom: 14px;
  padding: 8px 11px;
  border: 1px solid var(--line);
  color: var(--gold-soft);
  background: rgba(5, 5, 5, 0.76);
  font-family: Arial, "Microsoft YaHei", sans-serif;
  font-size: 12px;
}

.project-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  grid-template-rows: repeat(2, 320px);
  gap: 18px;
  max-width: 1340px;
  margin: 0 auto;
}

.project {
  position: relative;
  overflow: hidden;
  border: 1px solid var(--white-line);
}

.project.featured {
  grid-row: span 2;
}

.project::after {
  position: absolute;
  inset: 0;
  background: linear-gradient(0deg, rgba(0, 0, 0, 0.76), transparent 55%);
  content: "";
}

.project img {
  transition: transform 500ms ease;
}

.project:hover img {
  transform: scale(1.04);
}

.project-info {
  position: absolute;
  right: 26px;
  bottom: 24px;
  left: 26px;
  z-index: 1;
}

.project-info span {
  color: var(--gold-soft);
  font-family: Arial, "Microsoft YaHei", sans-serif;
  font-size: 12px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.project-info h3 {
  margin: 8px 0;
  font-size: 30px;
  font-weight: 500;
}

.contact {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 60px;
  padding: 110px clamp(20px, 7vw, 96px);
  background:
    linear-gradient(rgba(5, 5, 5, 0.86), rgba(5, 5, 5, 0.9)),
    url("https://images.unsplash.com/photo-1600607688960-e095ff83135c?auto=format&fit=crop&w=1800&q=82") center / cover;
}

.contact-copy {
  align-self: center;
}

.contact-copy h2 {
  margin-bottom: 24px;
}

.contact-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 34px;
}

.contact-actions a {
  min-width: 118px;
  padding: 13px 18px;
  border: 1px solid var(--line);
  color: var(--gold-soft);
  font: 13px Arial, "Microsoft YaHei", sans-serif;
  letter-spacing: 0.12em;
  text-align: center;
  text-transform: uppercase;
  background: rgba(201, 164, 93, 0.05);
  transition: border-color 180ms ease, background 180ms ease, transform 180ms ease;
}

.contact-actions a:hover,
.contact-actions a:focus-visible {
  border-color: var(--gold);
  background: rgba(201, 164, 93, 0.14);
  transform: translateY(-2px);
}

.contact-panel {
  display: grid;
  gap: 14px;
  padding: clamp(24px, 4vw, 48px);
  border: 1px solid var(--line);
  background: rgba(10, 9, 7, 0.78);
  backdrop-filter: blur(18px);
}

.contact-method {
  display: grid;
  grid-template-columns: 120px 1fr auto;
  gap: 18px;
  align-items: center;
  min-height: 74px;
  padding: 18px 0;
  border-bottom: 1px solid rgba(201, 164, 93, 0.22);
}

.contact-method span {
  color: var(--gold);
  font: 12px Arial, "Microsoft YaHei", sans-serif;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.contact-method a {
  color: var(--gold-soft);
  font-size: clamp(20px, 2vw, 30px);
  line-height: 1.2;
  text-decoration: underline;
  text-decoration-color: rgba(240, 209, 138, 0.28);
  text-underline-offset: 7px;
  transition: color 180ms ease, text-decoration-color 180ms ease;
}

.contact-method a:hover,
.contact-method a:focus-visible {
  color: #fff5d6;
  text-decoration-color: var(--gold);
}

.contact-method button {
  min-width: 64px;
  padding: 10px 12px;
  border: 1px solid var(--white-line);
  color: var(--muted);
  background: rgba(255, 255, 255, 0.04);
  cursor: pointer;
  transition: border-color 180ms ease, color 180ms ease;
}

.contact-method button:hover,
.contact-method button:focus-visible {
  border-color: var(--gold);
  color: var(--gold-soft);
}

.contact-links {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 12px;
}

.store-link {
  display: inline-flex;
  align-items: center;
  min-height: 38px;
  padding: 0 14px;
  border: 1px solid var(--line);
  color: var(--gold-soft);
  background: rgba(201, 164, 93, 0.06);
}

.contact-form {
  display: grid;
  gap: 14px;
  margin-top: 18px;
}

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

input,
select,
textarea {
  width: 100%;
  border: 1px solid var(--white-line);
  border-radius: 0;
  padding: 16px;
  color: var(--text);
  background: rgba(255, 255, 255, 0.06);
  font: 14px Arial, "Microsoft YaHei", sans-serif;
}

input:focus,
select:focus,
textarea:focus {
  border-color: var(--gold);
  outline: none;
}

select {
  appearance: none;
  background:
    linear-gradient(45deg, transparent 50%, var(--gold-soft) 50%) right 18px center / 7px 7px no-repeat,
    rgba(255, 255, 255, 0.06);
}

textarea {
  resize: vertical;
}

.contact-note {
  margin: 0;
  color: rgba(221, 213, 196, 0.74);
  font-size: 13px;
}

.footer {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  padding: 30px clamp(20px, 5vw, 72px);
  border-top: 1px solid var(--line);
  background: #050505;
}

.footer span:first-child {
  color: var(--gold-soft);
  font-family: "Didot", Georgia, serif;
  font-size: 20px;
}

@media (max-width: 980px) {
  .menu-toggle {
    display: block;
    position: relative;
    z-index: 12;
  }

  .nav {
    position: fixed;
    top: 86px;
    right: 16px;
    left: 16px;
    display: none;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 10px;
    border: 1px solid var(--line);
    background: rgba(5, 5, 5, 0.96);
  }

  .nav-item {
    width: 100%;
  }

  .nav-menu {
    position: static;
    display: none;
    min-width: 0;
    padding: 0 0 0 12px;
    border: 0;
    background: transparent;
    opacity: 1;
    transform: none;
  }

  .nav-item:hover .nav-menu,
  .nav-item:focus-within .nav-menu {
    display: block;
  }

  .nav.is-open {
    display: flex;
  }

  .nav a {
    padding: 16px;
    border-bottom: 1px solid var(--white-line);
  }

  .nav a:last-child {
    border-bottom: 0;
  }

  .hero-content {
    padding-top: 22vh;
    padding-bottom: 250px;
  }

  .hero-stats,
  .section-head,
  .about,
  .contact {
    grid-template-columns: 1fr;
  }

  .contact-method {
    grid-template-columns: 1fr auto;
  }

  .contact-method span {
    grid-column: 1 / -1;
  }

  .product-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .boutique-card,
  .boutique-card.large {
    min-height: 520px;
  }

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

  .home-copper-grid,
  .boutique-grid,
  .craft-grid,
  .proof-grid,
  .capability-grid,
  .process-grid,
  .buyer-grid,
  .faq-grid,
  .scene-grid,
  .detail-hero {
    grid-template-columns: 1fr;
  }

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

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

  .project-grid {
    grid-template-columns: 1fr;
    grid-template-rows: 420px 320px 320px;
  }

  .project.featured {
    grid-row: span 1;
  }
}

@media (max-width: 640px) {
  .site-header {
    padding: 16px 18px;
  }

  .brand small {
    display: none;
  }

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

  .brand-logo {
    width: 46px;
    height: 34px;
  }

  .hero-media {
    background-position: 62% center;
  }

  .hero-overlay {
    background:
      linear-gradient(90deg, rgba(5, 5, 5, 0.92), rgba(5, 5, 5, 0.48)),
      linear-gradient(0deg, rgba(5, 5, 5, 0.94), transparent 45%);
  }

  .hero-content {
    width: calc(100% - 36px);
    padding: 18vh 0 300px 18px;
  }

  h1 {
    font-size: 56px;
    line-height: 0.92;
  }

  h1 span:last-child {
    font-size: 0.55em;
    letter-spacing: 0.06em;
  }

  .hero-copy {
    font-size: 16px;
    padding-left: 18px;
  }

  .hero-actions {
    align-items: stretch;
    flex-direction: column;
    max-width: 260px;
  }

  .hero-stats {
    right: 18px;
    bottom: 18px;
    left: 18px;
  }

  .hero-stats div {
    padding: 14px 16px;
    border-right: 0;
    border-bottom: 1px solid var(--line);
  }

  .hero-stats div:last-child {
    border-bottom: 0;
  }

  .section {
    padding: 76px 18px;
  }

  .section-head {
    gap: 18px;
    margin-bottom: 30px;
  }

  .product-grid,
  .catalog-grid,
  .home-copper-grid,
  .boutique-grid,
  .craft-grid,
  .proof-grid,
  .capability-grid,
  .process-grid,
  .buyer-grid,
  .faq-grid,
  .scene-grid,
  .detail-grid,
  .detail-specs,
  .about-list {
    grid-template-columns: 1fr;
  }

  .scene-card {
    grid-template-columns: 1fr;
  }

  .scene-card img {
    min-height: 260px;
  }

  .art-head h2,
  .factory-head h2,
  .factory-copy h2 {
    font-size: 44px;
  }

  .product-card {
    min-height: auto;
  }

  .product-card img {
    height: 240px;
  }

  .boutique-card,
  .boutique-card.large {
    min-height: 430px;
  }

  .boutique-card div {
    padding: 22px;
  }

  .about-content,
  .contact {
    padding: 76px 18px;
  }

  .about-image {
    min-height: 360px;
  }

  .project-grid {
    grid-template-rows: repeat(3, 360px);
  }

  .contact {
    gap: 28px;
  }

  .contact-method {
    grid-template-columns: 1fr;
    gap: 10px;
  }

  .contact-method button {
    width: fit-content;
  }

  .form-grid {
    grid-template-columns: 1fr;
  }

  .footer {
    flex-direction: column;
  }
}