:root {
  --ink: #17231d;
  --ink-soft: #405047;
  --forest: #26483a;
  --forest-deep: #26231f;
  --paper: #f3efe6;
  --paper-light: #fbf9f4;
  --white: #fffdf8;
  --bronze: #a86f3d;
  --bronze-dark: #80512b;
  --line: rgba(23, 35, 29, 0.16);
  --line-light: rgba(255, 253, 248, 0.18);
  --muted: #67736c;
  --shadow: 0 24px 64px rgba(47, 40, 32, 0.14);
  --wrap: min(1240px, calc(100vw - 64px));
  --radius-xl: 24px;
  --radius-lg: 18px;
  --radius-md: 12px;
  --radius-sm: 8px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 92px; }
body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font: 400 16px/1.8 "Noto Sans SC", "Microsoft YaHei", sans-serif;
  -webkit-font-smoothing: antialiased;
}
body.menu-open { overflow: hidden; }
a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; }
button, input, select, textarea { font: inherit; }
button, a { -webkit-tap-highlight-color: transparent; }
::selection { color: var(--white); background: var(--forest); }

.container { width: var(--wrap); margin-inline: auto; }
.topbar-inner, .site-header-inner, .hero-grid, .hero-metrics, .heading,
.cards-3, .cards-4, .contact-grid, .footer-grid, .detail-hero,
.detail-grid, .cta-band, .error-grid, .actions {
  display: grid;
  gap: 24px;
}

/* Brand and navigation */
.topbar {
  color: rgba(255, 253, 248, 0.78);
  background: #2a2723;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}
.topbar-inner {
  grid-template-columns: 1fr auto;
  align-items: center;
  min-height: 38px;
  font-size: 12px;
  letter-spacing: 0.08em;
}
.topbar-note { letter-spacing: 0.18em; }
.topbar-links, .nav, .header-ctas, .footer-links, .meta, .tags, .thumbs {
  display: flex;
  flex-wrap: wrap;
  gap: 18px;
}
.topbar-links a, .nav a, .footer-links a, .inline-link { transition: color 0.2s ease; }
.topbar a:hover, .nav a:hover, .footer-links a:hover, .inline-link:hover { color: var(--bronze); }

.site-header {
  position: sticky;
  top: 0;
  z-index: 40;
  color: var(--ink);
  background: rgba(243, 239, 230, 0.97);
  border-bottom: 1px solid transparent;
  transition: box-shadow 0.25s ease, border-color 0.25s ease, background 0.25s ease;
}
.site-header.is-scrolled {
  background: rgba(251, 249, 244, 0.98);
  border-color: var(--line);
  box-shadow: 0 12px 32px rgba(23, 35, 29, 0.08);
}
.site-header-inner {
  grid-template-columns: auto 1fr auto auto;
  align-items: center;
  min-height: 86px;
}
.brand { display: inline-flex; align-items: center; gap: 14px; width: fit-content; }
.brand-mark {
  width: 48px;
  height: 48px;
  display: grid;
  place-items: center;
  color: var(--paper-light);
  background: #312d28;
  border: 1px solid #312d28;
  border-radius: var(--radius-md);
  font: 700 24px/1 "Noto Serif SC", serif;
  box-shadow: inset 0 0 0 4px #312d28, inset 0 0 0 5px rgba(255, 253, 248, 0.28);
}
.brand-mark i { display: none; }
.brand-mark::before { content: "裕"; }
.brand-text strong, .brand-text span { display: block; }
.brand-text strong {
  font: 700 21px/1.15 "Noto Serif SC", serif;
  letter-spacing: 0.14em;
}
.brand-text span { margin-top: 4px; color: var(--muted); font-size: 10px; letter-spacing: 0.2em; }
.nav { justify-content: center; gap: clamp(20px, 3vw, 42px); }
.nav a {
  position: relative;
  padding: 30px 0 27px;
  color: #35443c;
  font-size: 14px;
  letter-spacing: 0.06em;
}
.nav a::after {
  content: "";
  position: absolute;
  right: 0;
  bottom: 20px;
  left: 0;
  height: 1px;
  background: var(--bronze);
  transform: scaleX(0);
  transform-origin: right;
  transition: transform 0.25s ease;
}
.nav a:hover::after { transform: scaleX(1); transform-origin: left; }
.header-phone, .button, .button-secondary, .button-ghost, .tag, .pill {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
}
.header-phone {
  min-height: 42px;
  padding: 0 18px;
  color: var(--white);
  background: var(--bronze-dark);
  border-radius: var(--radius-md);
  font-size: 14px;
  letter-spacing: 0.04em;
}
.menu-toggle {
  display: none;
  width: 46px;
  height: 46px;
  color: var(--forest);
  background: transparent;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
}
.mobile-menu { display: none; padding-bottom: 16px; }
.mobile-menu.is-open { display: block; }
.mobile-panel { padding: 8px 20px; color: var(--ink); background: var(--white); border: 1px solid var(--line); border-radius: var(--radius-lg); box-shadow: var(--shadow); }
.mobile-panel a { display: block; padding: 14px 2px; border-bottom: 1px solid var(--line); }
.mobile-panel a:last-child { color: var(--bronze-dark); border-bottom: 0; font-weight: 700; }

/* Typography and controls */
h1, h2, .title { margin: 0; font-family: "Noto Serif SC", serif; font-weight: 700; line-height: 1.26; letter-spacing: 0.01em; }
h1 { text-wrap: balance; }
.lead { max-width: 46rem; margin: 22px 0 0; color: var(--ink-soft); font-size: 17px; line-height: 1.9; }
.eyebrow, .kicker {
  color: var(--bronze-dark);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}
.eyebrow { display: inline-flex; align-items: center; gap: 12px; }
.eyebrow::before, .kicker::before { content: ""; display: inline-block; width: 34px; height: 1px; margin-right: 10px; vertical-align: middle; background: currentColor; }
.actions { grid-auto-flow: column; justify-content: start; margin-top: 32px; gap: 12px; }
.button, .button-secondary, .button-ghost {
  min-height: 52px;
  padding: 0 24px;
  border: 1px solid transparent;
  border-radius: var(--radius-md);
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0.05em;
  text-align: center;
  transition: transform 0.2s ease, background 0.2s ease, color 0.2s ease, border-color 0.2s ease;
}
.button { color: var(--white); background: var(--bronze-dark); border-color: var(--bronze-dark); box-shadow: 0 12px 26px rgba(128, 81, 43, 0.18); }
.button:hover { background: #5d3e27; border-color: #5d3e27; transform: translateY(-2px); }
.button-secondary { color: var(--forest); background: transparent; border-color: rgba(24, 54, 42, 0.34); }
.button-secondary:hover { color: var(--white); background: var(--forest); border-color: var(--forest); transform: translateY(-2px); }
.button-ghost { color: var(--bronze-dark); background: transparent; border-color: transparent; }
.button-ghost:hover { color: var(--forest); transform: translateY(-2px); }
.inline-link { display: inline-flex; align-items: center; gap: 10px; margin-top: 22px; color: var(--bronze-dark); font-weight: 700; font-size: 14px; }
.inline-link i { transition: transform 0.2s ease; }
.inline-link:hover i { transform: translateX(4px); }
.tag, .pill {
  min-height: 32px;
  padding: 0 12px;
  color: var(--forest);
  background: rgba(24, 54, 42, 0.06);
  border: 1px solid rgba(24, 54, 42, 0.15);
  border-radius: 999px;
  font-size: 12px;
  letter-spacing: 0.04em;
}

/* Home hero */
.hero, .section, .detail-section, .error-shell { position: relative; overflow: hidden; }
.hero {
  padding: 72px 0 96px;
  background:
    linear-gradient(90deg, rgba(168, 111, 61, 0.08) 1px, transparent 1px) 0 0 / calc((100vw - max(64px, (100vw - 1240px))) / 4) 100%,
    var(--paper);
}
.hero::after {
  content: "YUXINYUAN";
  position: absolute;
  left: max(32px, calc((100vw - 1240px) / 2));
  bottom: -24px;
  z-index: 0;
  color: rgba(24, 54, 42, 0.035);
  font: 800 clamp(5rem, 12vw, 11rem)/1 Georgia, serif;
  letter-spacing: 0.04em;
  pointer-events: none;
}
.hero-grid { position: relative; z-index: 1; grid-template-columns: 0.92fr 1.08fr; align-items: center; gap: clamp(42px, 7vw, 100px); }
.hero h1 { max-width: 8.6ch; margin-top: 24px; font-size: clamp(3rem, 5.8vw, 5.6rem); }
.hero .lead { max-width: 40rem; }
.hero-visual {
  position: relative;
  min-height: 650px;
  background: url("../images/hero/building-exterior.png") center / cover no-repeat;
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow);
}
.hero-visual::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 44%, rgba(11, 28, 21, 0.72));
}
.hero-visual::after {
  content: "";
  position: absolute;
  top: 20px;
  right: 20px;
  bottom: 20px;
  left: 20px;
  border: 1px solid rgba(255, 253, 248, 0.42);
  pointer-events: none;
}
.hero-visual-inner { position: relative; z-index: 2; display: flex; align-items: end; height: 100%; padding: 46px; }
.hero-note { width: min(420px, 100%); margin-left: auto; color: var(--white); }
.hero-note .copy { color: rgba(255, 253, 248, 0.76); }
.hero-metrics { grid-template-columns: repeat(3, minmax(0, 1fr)); margin-top: 42px; gap: 0; border-top: 1px solid var(--line); }
.metric { padding: 22px 22px 0 0; }
.metric + .metric { padding-left: 22px; border-left: 1px solid var(--line); }
.metric strong { display: block; color: var(--forest); font: 700 32px/1.1 Georgia, "Noto Serif SC", serif; }
.metric span { display: block; margin-top: 8px; color: var(--muted); font-size: 12px; line-height: 1.65; }

/* Corporate-scale home hero */
#home {
  padding: 0;
  color: var(--white);
  background: #211f1c;
  border-radius: 0 0 var(--radius-xl) var(--radius-xl);
}
#home::after { display: none; }
#home .container { width: 100%; }
#home .hero-grid {
  display: grid;
  min-height: 760px;
  grid-template-columns: 1fr;
  gap: 0;
}
#home .hero-grid > div:first-child,
#home .hero-visual {
  grid-area: 1 / 1;
}
#home .hero-grid > div:first-child {
  position: relative;
  z-index: 4;
  width: min(1240px, calc(100% - 64px));
  margin: auto;
  padding: 88px 0 72px;
  align-self: stretch;
  display: flex;
  flex-direction: column;
  justify-content: center;
}
#home .hero-grid > div:first-child > :not(.hero-metrics) { width: min(620px, 52vw); }
#home .eyebrow { color: #e3bd91; text-shadow: 0 2px 12px rgba(0,0,0,0.25); }
#home h1 {
  max-width: 9ch;
  margin-top: 22px;
  color: var(--white);
  font-size: clamp(3.6rem, 6.2vw, 6.5rem);
  text-shadow: 0 4px 28px rgba(0,0,0,0.24);
}
#home .lead { color: rgba(255, 253, 248, 0.82); font-size: 18px; text-shadow: 0 2px 12px rgba(0,0,0,0.22); }
#home .hero-visual {
  min-height: 760px;
  border: 0;
  border-radius: 0 0 var(--radius-xl) var(--radius-xl);
  background-position: center;
  box-shadow: none;
}
#home .hero-visual::before {
  background:
    linear-gradient(90deg, rgba(25, 23, 20, 0.93) 0%, rgba(25, 23, 20, 0.76) 38%, rgba(25, 23, 20, 0.2) 70%, rgba(25, 23, 20, 0.2) 100%),
    linear-gradient(180deg, rgba(20,18,16,0.16), rgba(20,18,16,0.5));
}
#home .hero-visual::after { display: none; }
#home .hero-visual-inner { position: absolute; right: max(32px, calc((100vw - 1240px) / 2)); bottom: 160px; width: 360px; height: auto; padding: 0; }
#home .hero-note {
  padding: 24px 26px;
  background: rgba(40, 35, 30, 0.76);
  border-left: 3px solid #d2a878;
  border-radius: var(--radius-lg);
  box-shadow: 0 16px 42px rgba(0,0,0,0.18);
}
#home .hero-metrics {
  width: min(660px, 55vw);
  margin-top: 38px;
  border-top-color: rgba(255, 253, 248, 0.25);
}
#home .metric + .metric { border-left-color: rgba(255, 253, 248, 0.22); }
#home .metric strong { color: #e0b789; font-size: 36px; }
#home .metric span { color: rgba(255, 253, 248, 0.7); }
#home .button { color: #2b251f; background: #ddb98f; border-color: #ddb98f; }
#home .button:hover { background: #edcda8; border-color: #edcda8; }
#home .button-secondary { color: var(--white); background: rgba(255,255,255,0.06); border-color: rgba(255,253,248,0.46); }
#home .button-secondary:hover { color: #2b251f; background: var(--white); border-color: var(--white); }
#home .button-ghost { color: var(--white); }

/* Sections and cards */
.section, .detail-section { padding: 118px 0; background: var(--paper); }
.section.light, .detail-section.light { background: var(--paper-light); }
.section.light::before, .detail-section.light::before {
  content: "";
  position: absolute;
  inset: 0;
  opacity: 0.34;
  pointer-events: none;
  background-image: radial-gradient(rgba(23, 35, 29, 0.09) 0.6px, transparent 0.6px);
  background-size: 8px 8px;
}
.section > .container, .detail-section > .container { position: relative; z-index: 1; }
.heading { grid-template-columns: minmax(0, 1.1fr) minmax(280px, 0.55fr); align-items: end; margin-bottom: 48px; gap: 64px; }
.heading h2 { max-width: 16ch; margin-top: 14px; font-size: clamp(2.2rem, 4vw, 4rem); }
.heading .lead { margin: 0; font-size: 16px; }
.cards-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.cards-4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.card, .panel, .quote, .error-card, .cta-band {
  padding: 30px;
  background: rgba(255, 253, 248, 0.86);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
}
.card { position: relative; box-shadow: 0 10px 30px rgba(47, 40, 32, 0.07); transition: transform 0.3s ease, box-shadow 0.3s ease, border-color 0.3s ease; }
.card:hover { z-index: 2; border-color: rgba(168, 111, 61, 0.42); box-shadow: var(--shadow); transform: translateY(-7px); }
.media { height: 250px; margin: -30px -30px 26px; overflow: hidden; background: #e7e1d7; border-radius: var(--radius-lg) var(--radius-lg) 0 0; }
.media img, .gallery-main img, .thumb img, .error-image img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.65s ease; }
.card:hover > .media img { transform: scale(1.035); }
.icon {
  width: 46px;
  height: 46px;
  display: grid;
  place-items: center;
  margin-bottom: 22px;
  color: var(--bronze-dark);
  background: transparent;
  border: 1px solid rgba(168, 111, 61, 0.44);
  border-radius: var(--radius-md);
  font-size: 18px;
}
.card-title { margin: 0 0 12px; font-family: "Noto Serif SC", serif; font-size: 20px; line-height: 1.5; }
.copy, .muted { margin: 8px 0 0; color: var(--muted); }
.list, .footer-list, .breadcrumb { margin: 0; padding: 0; list-style: none; }
.list { margin-top: 20px; }
.list li, .footer-list li { margin-bottom: 10px; }
.list li { position: relative; padding-left: 18px; color: var(--ink-soft); }
.list li::before { content: ""; position: absolute; top: 0.78em; left: 0; width: 7px; height: 1px; background: var(--bronze); }

/* Featured product card typography rhythm */
#featured .card { display: flex; flex-direction: column; }
#featured .tags { gap: 10px; margin-bottom: 26px; }
#featured .tag { letter-spacing: 0.02em; }
#featured .card-title {
  margin-bottom: 10px;
  font-size: 21px;
  line-height: 1.4;
  letter-spacing: 0.02em;
}
#featured .muted {
  margin: 0 0 24px;
  line-height: 1.85;
  letter-spacing: 0.01em;
}
#featured .button-secondary {
  align-self: flex-start;
  margin-top: auto;
  letter-spacing: 0.02em;
}

/* Capability feature */
#capability { color: var(--ink); background: linear-gradient(135deg, #e4dacb 0%, #f4eee4 52%, #d8ccbb 100%); }
#capability::before {
  content: "";
  position: absolute;
  inset: 0;
  opacity: 0.8;
  background: linear-gradient(120deg, transparent 0 54%, rgba(255,255,255,0.34) 54% 72%, transparent 72%);
  pointer-events: none;
}
#capability .eyebrow, #capability .kicker { color: var(--bronze-dark); }
#capability .lead, #capability .muted { color: var(--muted); }
#capability .showcase { position: relative; z-index: 1; }
#capability .cards-3 { grid-template-columns: 1fr; gap: 14px; }
#capability .card { padding: 22px 24px; background: rgba(255, 253, 248, 0.92); border: 1px solid rgba(81, 62, 43, 0.14); box-shadow: 0 14px 34px rgba(75, 60, 43, 0.09); }
#capability .card:hover { transform: translateX(6px); box-shadow: 0 18px 42px rgba(75, 60, 43, 0.14); }
#capability .icon { float: left; margin: 0 16px 8px 0; color: var(--bronze-dark); background: #f3eadf; border-color: rgba(168, 111, 61, 0.3); }
.showcase { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 0.92fr); align-items: stretch; gap: clamp(46px, 7vw, 92px); }
.showcase-photo { min-height: 650px; overflow: hidden; border: 8px solid rgba(255, 253, 248, 0.72); border-radius: var(--radius-xl); box-shadow: 20px 22px 0 rgba(128, 81, 43, 0.15), var(--shadow); }
.showcase-photo img { width: 100%; height: 100%; object-fit: cover; }
.mosaic { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 18px; }
.mosaic-card { position: relative; min-height: 220px; overflow: hidden; border-radius: var(--radius-lg); }
.mosaic-card.large { grid-column: span 2; min-height: 260px; }
.mosaic-overlay { position: absolute; right: 16px; bottom: 16px; left: 16px; padding: 16px 18px; color: var(--white); background: rgba(16, 38, 29, 0.88); border-radius: var(--radius-md); }

/* Contact and footer */
.contact-grid { grid-template-columns: 0.82fr 1.18fr; align-items: start; gap: 28px; }
.stack { display: grid; gap: 18px; }
.row { display: flex; align-items: start; gap: 16px; }
.row .icon { flex: 0 0 auto; margin-bottom: 0; }
#contact .quote .row > div:last-child { flex: 1; min-width: 0; }
#contact .quote .row .muted { margin-top: 6px; }
#contact .quote .inline-link {
  display: inline;
  margin-top: 0;
  font-size: inherit;
  vertical-align: baseline;
}
.location-map-card {
  display: grid;
  grid-template-columns: minmax(280px, 0.62fr) minmax(0, 1.38fr);
  min-height: 600px;
  margin-top: 28px;
  overflow: hidden;
  background: var(--paper-light);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
}
.location-map-copy {
  position: relative;
  z-index: 2;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  justify-content: center;
  padding: clamp(32px, 4vw, 54px);
  color: var(--white);
  background: linear-gradient(145deg, #26231f 0%, #3d342c 100%);
}
.location-map-copy .kicker { color: #d8b38a; }
.location-map-copy h3 {
  margin: 18px 0 16px;
  font: 700 clamp(1.75rem, 3vw, 2.5rem)/1.35 "Noto Serif SC", serif;
  letter-spacing: 0.02em;
}
.location-map-copy p { margin: 0; color: rgba(255, 253, 248, 0.78); line-height: 1.85; }
.location-map-copy .location-map-note { margin-top: 12px; color: rgba(255, 253, 248, 0.58); font-size: 14px; }
.location-map-copy .button { margin-top: 28px; color: #2c2823; background: #d8b38a; border-color: #d8b38a; }
.location-map-copy .button:hover { background: #e6c7a3; border-color: #e6c7a3; }
.location-map-frame { min-width: 0; min-height: 600px; overflow: hidden; background: #e4ded3; }
.location-map-frame iframe { width: 100%; height: 100%; min-height: 600px; display: block; border: 0; }
.quote { padding: clamp(28px, 4vw, 52px); color: var(--white); background: linear-gradient(135deg, #2c2823 0%, #463b31 100%); border-color: #2c2823; box-shadow: 0 26px 70px rgba(39, 34, 29, 0.2); }
.quote > .muted { color: rgba(255, 253, 248, 0.7); }
.quote .card { color: var(--ink); background: var(--paper-light); }
.quote .button { color: #2c2823; background: #d8b38a; border-color: #d8b38a; }
.quote .button-secondary { color: var(--white); border-color: rgba(255, 253, 248, 0.32); }
.quote form, .form-grid, .form-field, .process { display: grid; gap: 16px; }
.form-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.form-field label { font-size: 14px; }
.form-field input, .form-field select, .form-field textarea { width: 100%; padding: 14px 16px; color: var(--ink); background: var(--white); border: 1px solid var(--line); outline: 0; }
.form-field input:focus, .form-field select:focus, .form-field textarea:focus { border-color: var(--bronze); box-shadow: 0 0 0 3px rgba(168, 111, 61, 0.12); }
.form-help { color: var(--muted); font-size: 14px; }
.form-field input, .form-field select, .form-field textarea { border-radius: var(--radius-md); }
.form-feedback { display: none; padding: 14px 16px; color: #3f613f; background: #e6efe1; border-radius: var(--radius-md); }
.form-feedback.is-visible { display: block; }

.footer { padding: 78px 0 34px; color: var(--white); background: #24211e; border-top: 5px solid var(--bronze); }
.footer .brand-mark { color: var(--forest); background: #d2aa7d; border-color: #d2aa7d; box-shadow: inset 0 0 0 4px #d2aa7d, inset 0 0 0 5px rgba(16, 38, 29, 0.35); }
.footer .brand-text span, .footer-copy, .footer-list, .meta { color: rgba(255, 253, 248, 0.62); }
.footer-grid { grid-template-columns: 1.2fr 0.72fr 0.72fr 1fr; align-items: start; margin-bottom: 42px; gap: 44px; }
.footer-copy { max-width: 28rem; margin-top: 20px; }
.footer-title { margin: 0 0 16px; color: #d2aa7d; font: 700 16px/1.4 "Noto Serif SC", serif; }
.meta { gap: 24px; padding-top: 24px; border-top: 1px solid var(--line-light); font-size: 12px; }

/* Product pages */
.breadcrumb-wrap { padding-top: 4px; }
.breadcrumb { display: flex; flex-wrap: wrap; gap: 12px; color: var(--muted); font-size: 13px; }
.breadcrumb li + li::before { content: "/"; margin-right: 12px; color: rgba(23, 35, 29, 0.28); }
.detail-hero { grid-template-columns: 0.9fr 1.1fr; align-items: center; margin-top: 28px; gap: clamp(48px, 7vw, 90px); }
.detail-title { max-width: 11ch; margin-top: 20px; font-size: clamp(2.7rem, 5vw, 4.8rem); }
.detail-visual { min-height: 540px; overflow: hidden; border-radius: var(--radius-xl); box-shadow: var(--shadow); }
.detail-visual img { width: 100%; height: 100%; object-fit: cover; }
.detail-grid { grid-template-columns: 1fr 1fr; align-items: start; gap: 40px; }
.gallery-main { height: 540px; overflow: hidden; margin-bottom: 12px; background: #e7e1d7; border-radius: var(--radius-xl); box-shadow: var(--shadow); }
.thumbs { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 10px; }
.thumb { height: 92px; padding: 0; overflow: hidden; background: #e7e1d7; border: 2px solid transparent; border-radius: var(--radius-md); cursor: pointer; opacity: 0.65; transition: opacity 0.2s ease, border-color 0.2s ease; }
.thumb.is-active, .thumb:hover { opacity: 1; border-color: var(--bronze); }
.panel { display: grid; gap: 28px; }
.mini { display: grid; gap: 0; border-top: 1px solid var(--line); }
.mini-row { display: grid; grid-template-columns: 120px 1fr; gap: 16px; padding: 15px 0; border-bottom: 1px solid var(--line); }
.mini-row span:first-child { color: var(--muted); font-size: 14px; }
.process { margin-top: 6px; }
.process-item { display: grid; grid-template-columns: auto 1fr; gap: 18px; }
.num { width: 44px; height: 44px; display: grid; place-items: center; color: var(--bronze-dark); border: 1px solid rgba(168, 111, 61, 0.42); border-radius: var(--radius-md); font: 700 13px/1 Georgia, serif; }
.cta-band { grid-template-columns: 1fr auto; align-items: center; margin-top: 40px; padding: 34px 38px; background: var(--paper); border-left: 4px solid var(--bronze); }

/* 404 and utilities */
.error-shell { min-height: 100vh; display: grid; place-items: center; padding: 64px 0; background: var(--paper); }
.error-grid { grid-template-columns: 0.9fr 1.1fr; align-items: center; gap: 0; }
.error-image { height: 620px; overflow: hidden; border-radius: var(--radius-xl); box-shadow: var(--shadow); }
.error-card { z-index: 2; margin-left: -40px; padding: clamp(36px, 5vw, 70px); background: var(--paper-light); box-shadow: var(--shadow); }
.error-number { margin: 8px 0 16px; color: var(--bronze); font: 700 clamp(5rem, 13vw, 10rem)/0.9 Georgia, serif; letter-spacing: -0.05em; }
.back-to-top {
  position: fixed;
  right: 22px;
  bottom: max(22px, env(safe-area-inset-bottom));
  z-index: 30;
  width: 48px;
  height: 48px;
  color: var(--white);
  background: var(--bronze-dark);
  border: 1px solid rgba(255,255,255,0.2);
  border-radius: 50%;
  box-shadow: 0 14px 30px rgba(16, 38, 29, 0.2);
  opacity: 0;
  visibility: hidden;
  transform: translateY(8px);
  transition: opacity 0.25s ease, visibility 0.25s ease, transform 0.25s ease;
}
.back-to-top.is-visible { opacity: 1; visibility: visible; transform: none; }
[data-reveal] { opacity: 0; transform: translateY(20px); transition: opacity 0.75s ease, transform 0.75s cubic-bezier(.2,.7,.2,1); }
[data-reveal].is-visible { opacity: 1; transform: none; }
.cards-3 > [data-reveal]:nth-child(2), .cards-4 > [data-reveal]:nth-child(2) { transition-delay: 0.08s; }
.cards-3 > [data-reveal]:nth-child(3), .cards-4 > [data-reveal]:nth-child(3) { transition-delay: 0.16s; }
.cards-4 > [data-reveal]:nth-child(4) { transition-delay: 0.24s; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: 0.01ms !important; transition-duration: 0.01ms !important; }
}

@media (max-width: 1100px) {
  .hero-grid, .showcase, .contact-grid, .detail-hero, .detail-grid, .footer-grid, .error-grid { grid-template-columns: 1fr; }
  .cards-3, .cards-4 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .site-header-inner { grid-template-columns: auto 1fr auto; min-height: 76px; }
  .nav, .header-ctas { display: none; }
  .menu-toggle { display: inline-grid; place-items: center; }
  .hero-grid { gap: 54px; }
  .hero h1 { max-width: 11ch; }
  .hero-visual { min-height: 540px; }
  .showcase-photo { min-height: 500px; }
  #capability .cards-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .footer-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .error-grid { width: min(820px, 100%); }
  .error-image { height: 440px; }
  .error-card { margin: -50px 28px 0; }
  #home .hero-grid, #home .hero-visual { min-height: 820px; }
  #home .hero-grid > div:first-child > :not(.hero-metrics) { width: min(650px, 68vw); }
  #home .hero-visual-inner { display: none; }
  #home .hero-metrics { width: min(680px, 72vw); }
}

@media (max-width: 760px) {
  :root { --wrap: min(100vw - 32px, 1240px); }
  html { scroll-padding-top: calc(76px + env(safe-area-inset-top)); }
  .topbar { display: none; }
  .site-header { top: 0; padding-top: env(safe-area-inset-top); }
  .site-header-inner { min-height: 70px; gap: 12px; }
  .brand { gap: 10px; min-width: 0; }
  .brand-mark { width: 42px; height: 42px; font-size: 21px; }
  .brand-text strong { font-size: 18px; letter-spacing: 0.08em; }
  .brand-text span { font-size: 9px; letter-spacing: 0.14em; }
  .mobile-menu { padding-bottom: 12px; }
  .hero { padding: 48px 0 72px; background: var(--paper); }
  .hero::after { display: none; }
  .hero h1 { font-size: clamp(2.45rem, 11.5vw, 3.8rem); }
  .hero-grid { gap: 42px; }
  .hero-visual { min-height: 420px; }
  .hero-visual-inner { padding: 32px; }
  .hero-visual::after { inset: 14px; }
  .hero-metrics { grid-template-columns: 1fr; margin-top: 30px; }
  .metric { padding: 16px 0; border-bottom: 1px solid var(--line); }
  .metric + .metric { padding-left: 0; border-left: 0; }
  .actions { grid-auto-flow: row; }
  .actions > * { width: 100%; }
  .section, .detail-section { padding: 76px 0; }
  .heading { grid-template-columns: 1fr; gap: 18px; margin-bottom: 34px; }
  .heading h2 { font-size: clamp(2rem, 9vw, 3rem); }
  .heading .lead { margin-top: 0; }
  .cards-3, .cards-4, #capability .cards-3 { grid-template-columns: 1fr; }
  .card, .panel, .quote, .error-card, .cta-band { padding: 22px; }
  .media { height: 220px; margin: -22px -22px 22px; }
  .showcase { gap: 42px; }
  .showcase-photo { min-height: 360px; }
  .footer { padding: 60px 0 28px; }
  .footer-grid { grid-template-columns: 1fr; gap: 32px; }
  .detail-hero { margin-top: 22px; gap: 40px; }
  .detail-title { font-size: clamp(2.25rem, 10vw, 3.4rem); }
  .detail-visual, .gallery-main { min-height: 340px; height: 340px; }
  .location-map-card { grid-template-columns: 1fr; }
  .location-map-frame, .location-map-frame iframe { min-height: 300px; height: 300px; }
  .thumbs { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .thumb { height: 88px; }
  .mini-row { grid-template-columns: 1fr; gap: 4px; }
  .cta-band { grid-template-columns: 1fr; padding: 26px; }
  .error-shell { padding: 28px 0; }
  .error-image { height: 310px; }
  .error-card { margin: -32px 12px 0; }
  .error-card h1 { font-size: 1.75rem; }
  .back-to-top { right: 14px; width: 44px; height: 44px; }
  #home { padding: 0; background: #211f1c; }
  #home .hero-grid, #home .hero-visual { min-height: 940px; }
  #home .hero-grid > div:first-child {
    width: min(100% - 32px, 1240px);
    padding: 68px 14px 52px;
    justify-content: flex-end;
  }
  #home .hero-grid > div:first-child > :not(.hero-metrics), #home .hero-metrics { width: 100%; }
  #home h1 { font-size: clamp(2.75rem, 13vw, 4.2rem); }
  #home .lead { font-size: 16px; }
  #home .hero-visual { background-position: 60% center; }
  #home .hero-visual::before {
    background: linear-gradient(180deg, rgba(25,23,20,0.12) 0%, rgba(25,23,20,0.34) 30%, rgba(25,23,20,0.96) 68%, #211f1c 100%);
  }
  #home .hero-metrics { margin-top: 30px; }
  #home .metric { border-bottom-color: rgba(255,253,248,0.18); }
}

@media (max-width: 460px) {
  :root { --wrap: min(100vw - 24px, 1240px); }
  .eyebrow { align-items: flex-start; line-height: 1.6; }
  .hero-visual { min-height: 360px; }
  .hero-visual-inner { padding: 26px; }
  .tags { display: grid; grid-template-columns: 1fr; gap: 8px; }
  .tag, .pill { justify-content: center; width: 100%; }
  .detail-visual, .gallery-main { min-height: 280px; height: 280px; }
}