:root {
  color-scheme: dark;
  --ink: #06100d;
  --ink-2: #0d1b16;
  --jade: #39b982;
  --jade-deep: #0f6946;
  --mint: #c7f2dd;
  --gold: #d7a953;
  --champagne: #f0d99b;
  --ivory: #f7f1e4;
  --muted: rgba(247, 241, 228, 0.68);
  --line: rgba(240, 217, 155, 0.24);
  --shadow: 0 24px 80px rgba(0, 0, 0, 0.35);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  min-width: 320px;
  margin: 0;
  background:
    radial-gradient(circle at 8% 18%, rgba(57, 185, 130, 0.12), transparent 28rem),
    linear-gradient(135deg, #06100d 0%, #111510 48%, #070907 100%);
  color: var(--ivory);
  font-family: "PingFang SC", "Microsoft YaHei", "Heiti SC", Arial, sans-serif;
  letter-spacing: 0;
}

body::before {
  position: fixed;
  inset: 0;
  z-index: -1;
  content: "";
  pointer-events: none;
  opacity: 0.36;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.022) 1px, transparent 1px);
  background-size: 42px 42px;
  mask-image: linear-gradient(to bottom, transparent, #000 18%, #000 72%, transparent);
}

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

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

.site-shell {
  overflow: hidden;
}

.topbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  padding: calc(14px + env(safe-area-inset-top)) clamp(18px, 4vw, 54px) 14px;
  color: var(--ivory);
  transition: background 220ms ease, border-color 220ms ease, backdrop-filter 220ms ease;
}

.topbar.is-scrolled {
  border-bottom: 1px solid rgba(240, 217, 155, 0.18);
  background: rgba(5, 13, 10, 0.76);
  backdrop-filter: blur(18px);
}

.brand-mark {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  min-width: 0;
}

.brand-emblem {
  display: grid;
  width: 42px;
  height: 42px;
  flex: 0 0 auto;
  place-items: center;
  border: 1px solid rgba(240, 217, 155, 0.55);
  border-radius: 50%;
  background: radial-gradient(circle at 34% 30%, rgba(199, 242, 221, 0.8), rgba(15, 105, 70, 0.72) 52%, rgba(6, 16, 13, 0.98));
  box-shadow: 0 0 26px rgba(57, 185, 130, 0.26), inset 0 0 14px rgba(247, 241, 228, 0.32);
  color: #fff8df;
  font-family: "Songti SC", "Noto Serif SC", serif;
  font-size: 19px;
  line-height: 1;
}

.brand-text {
  display: grid;
  gap: 1px;
  min-width: 0;
}

.brand-text strong {
  overflow: hidden;
  font-family: "Songti SC", "Noto Serif SC", serif;
  font-size: 18px;
  font-weight: 600;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.brand-text small {
  color: rgba(240, 217, 155, 0.76);
  font-size: 9px;
  letter-spacing: 0.18em;
}

.top-nav {
  display: flex;
  align-items: center;
  gap: clamp(10px, 2.5vw, 26px);
  padding: 9px 14px;
  border: 1px solid rgba(240, 217, 155, 0.18);
  border-radius: 999px;
  background: rgba(2, 8, 6, 0.28);
  color: rgba(247, 241, 228, 0.78);
  font-size: 13px;
}

.top-nav a {
  transition: color 180ms ease;
}

.top-nav a:hover,
.top-nav a.is-active {
  color: var(--champagne);
}

.hero {
  position: relative;
  display: grid;
  min-height: 92svh;
  padding: calc(112px + env(safe-area-inset-top)) clamp(20px, 5vw, 76px) 72px;
  overflow: hidden;
}

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

.hero-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: 66% 58%;
  filter: saturate(0.95) contrast(1.06) brightness(0.82);
}

.hero-shade {
  z-index: 1;
  background:
    linear-gradient(90deg, rgba(2, 8, 6, 0.96) 0%, rgba(2, 8, 6, 0.78) 34%, rgba(2, 8, 6, 0.32) 74%, rgba(2, 8, 6, 0.58) 100%),
    linear-gradient(0deg, rgba(2, 8, 6, 0.92), transparent 54%);
}

.hero-content {
  position: relative;
  z-index: 2;
  align-self: center;
  width: min(680px, 100%);
  padding-bottom: 18px;
}

.eyebrow,
.section-kicker {
  margin: 0 0 16px;
  color: var(--champagne);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.22em;
  text-transform: uppercase;
}

.hero h1,
.section h2 {
  margin: 0;
  font-family: "Songti SC", "Noto Serif SC", "STSong", serif;
  font-weight: 500;
  line-height: 1.08;
}

.hero h1 {
  max-width: 7.6em;
  font-size: clamp(48px, 9vw, 98px);
  text-wrap: balance;
}

.hero-copy {
  max-width: 590px;
  margin: 24px 0 0;
  color: rgba(247, 241, 228, 0.8);
  font-size: clamp(17px, 2vw, 22px);
  line-height: 1.85;
}

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

.primary-link,
.ghost-link {
  display: inline-flex;
  min-height: 48px;
  align-items: center;
  justify-content: center;
  padding: 0 22px;
  border-radius: 999px;
  font-size: 14px;
  font-weight: 600;
  transition: transform 180ms ease, border-color 180ms ease, background 180ms ease;
}

.primary-link {
  border: 1px solid rgba(240, 217, 155, 0.68);
  background: linear-gradient(135deg, rgba(240, 217, 155, 0.96), rgba(185, 131, 45, 0.95));
  color: #121008;
  box-shadow: 0 16px 42px rgba(0, 0, 0, 0.3);
}

.ghost-link {
  border: 1px solid rgba(247, 241, 228, 0.24);
  background: rgba(247, 241, 228, 0.06);
  color: var(--ivory);
}

.primary-link:hover,
.ghost-link:hover {
  transform: translateY(-2px);
}

.hero-metrics {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1px;
  width: min(620px, 100%);
  margin: 52px 0 0;
  padding: 1px;
  border: 1px solid rgba(240, 217, 155, 0.2);
  background: rgba(240, 217, 155, 0.1);
  box-shadow: var(--shadow);
}

.hero-metrics div {
  min-width: 0;
  padding: 18px 16px;
  background: rgba(3, 10, 8, 0.62);
  backdrop-filter: blur(10px);
}

.hero-metrics dt {
  margin: 0 0 6px;
  color: var(--champagne);
  font-family: Georgia, serif;
  font-size: 17px;
}

.hero-metrics dd {
  margin: 0;
  color: rgba(247, 241, 228, 0.7);
  font-size: 13px;
}

.scroll-cue {
  position: absolute;
  left: 50%;
  bottom: 18px;
  z-index: 2;
  display: grid;
  width: 30px;
  height: 48px;
  place-items: start center;
  transform: translateX(-50%);
  border: 1px solid rgba(247, 241, 228, 0.3);
  border-radius: 999px;
}

.scroll-cue span {
  width: 4px;
  height: 9px;
  margin-top: 10px;
  border-radius: 999px;
  background: var(--champagne);
  animation: cue 1.6s ease-in-out infinite;
}

@keyframes cue {
  0%,
  100% {
    transform: translateY(0);
    opacity: 0.45;
  }
  50% {
    transform: translateY(14px);
    opacity: 1;
  }
}

.section {
  position: relative;
  padding: clamp(76px, 10vw, 128px) clamp(20px, 5vw, 76px);
}

.section-heading {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(260px, 0.72fr);
  gap: 28px;
  align-items: end;
  margin-bottom: 38px;
}

.section h2 {
  color: #fff8df;
  font-size: clamp(32px, 5vw, 66px);
}

.section-heading p,
.standard-lead,
.atelier-copy p,
.closing-section p {
  margin: 0;
  color: var(--muted);
  font-size: 16px;
  line-height: 1.9;
}

.collection-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
}

.jade-card {
  position: relative;
  min-height: 420px;
  overflow: hidden;
  border: 1px solid rgba(240, 217, 155, 0.16);
  border-radius: 8px;
  background:
    linear-gradient(180deg, rgba(247, 241, 228, 0.08), rgba(247, 241, 228, 0.02)),
    #0b1511;
  box-shadow: var(--shadow);
}

.jade-card::after {
  position: absolute;
  inset: auto 0 0;
  height: 56%;
  content: "";
  background: linear-gradient(0deg, rgba(2, 8, 6, 0.96), transparent);
}

.card-photo {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  transform: scale(1.02);
  filter: saturate(0.92) contrast(1.08) brightness(0.82);
  transition: transform 700ms ease, filter 700ms ease;
}

.jade-card:hover .card-photo {
  transform: scale(1.07);
  filter: saturate(1) contrast(1.08) brightness(0.9);
}

.jade-card[data-tone="ice"] .card-photo {
  object-position: 52% 62%;
}

.jade-card[data-tone="green"] .card-photo {
  object-position: 50% 34%;
}

.jade-card[data-tone="gold"] .card-photo {
  object-position: 48% 44%;
}

.jade-card[data-tone="stone"] .card-photo {
  object-position: 54% 64%;
}

.card-copy {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 2;
  display: grid;
  gap: 10px;
  padding: 24px;
}

.card-copy span {
  color: rgba(240, 217, 155, 0.72);
  font-family: Georgia, serif;
  font-size: 13px;
}

.card-copy h3 {
  margin: 0;
  color: #fff8df;
  font-family: "Songti SC", "Noto Serif SC", serif;
  font-size: 25px;
  font-weight: 500;
}

.card-copy p {
  margin: 0;
  color: rgba(247, 241, 228, 0.66);
  font-size: 14px;
  line-height: 1.75;
}

.standard-section {
  background:
    linear-gradient(180deg, rgba(240, 217, 155, 0.06), transparent),
    radial-gradient(circle at 78% 10%, rgba(215, 169, 83, 0.16), transparent 28rem);
}

.standard-panel {
  display: grid;
  grid-template-columns: minmax(260px, 0.62fr) minmax(280px, 1fr);
  gap: clamp(28px, 6vw, 76px);
  align-items: start;
  max-width: 1180px;
  margin: 0 auto;
  padding: clamp(28px, 5vw, 56px);
  border: 1px solid var(--line);
  border-radius: 8px;
  background: linear-gradient(135deg, rgba(247, 241, 228, 0.08), rgba(247, 241, 228, 0.025));
  box-shadow: var(--shadow);
}

.standard-panel .section-kicker,
.standard-panel h2,
.standard-panel .standard-lead {
  grid-column: 1;
}

.standard-lead {
  margin-top: 24px;
}

.standard-list {
  display: grid;
  grid-column: 2;
  grid-row: 1 / span 4;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}

.standard-item {
  min-height: 190px;
  padding: 24px;
  border: 1px solid rgba(240, 217, 155, 0.16);
  border-radius: 8px;
  background: rgba(3, 10, 8, 0.48);
}

.standard-item span {
  display: grid;
  width: 42px;
  height: 42px;
  margin-bottom: 18px;
  place-items: center;
  border-radius: 50%;
  background: rgba(57, 185, 130, 0.16);
  color: var(--mint);
  font-family: "Songti SC", "Noto Serif SC", serif;
  font-size: 22px;
}

.standard-item strong {
  display: block;
  margin-bottom: 10px;
  color: #fff8df;
  font-size: 18px;
}

.standard-item p {
  margin: 0;
  color: rgba(247, 241, 228, 0.62);
  font-size: 14px;
  line-height: 1.75;
}

.atelier-section {
  display: grid;
  grid-template-columns: minmax(260px, 0.72fr) minmax(320px, 1fr);
  gap: clamp(32px, 7vw, 92px);
  align-items: center;
}

.atelier-copy {
  max-width: 560px;
}

.atelier-copy p {
  margin-top: 24px;
}

.atelier-stage {
  position: relative;
  min-height: 470px;
  overflow: hidden;
  border: 1px solid rgba(240, 217, 155, 0.18);
  border-radius: 8px;
  background:
    linear-gradient(120deg, rgba(247, 241, 228, 0.08), transparent 42%),
    radial-gradient(circle at 64% 34%, rgba(57, 185, 130, 0.22), transparent 18rem),
    #070c09;
  box-shadow: var(--shadow);
}

.atelier-stage::after {
  position: absolute;
  content: "";
  inset: 0;
  pointer-events: none;
  background:
    radial-gradient(circle at 54% 66%, rgba(2, 8, 6, 0.52), transparent 8rem),
    linear-gradient(180deg, transparent 40%, rgba(2, 8, 6, 0.86)),
    linear-gradient(90deg, rgba(2, 8, 6, 0.46), transparent 48%, rgba(2, 8, 6, 0.18));
}

.atelier-photo {
  position: absolute;
  display: block;
  object-fit: cover;
  box-shadow: 0 28px 70px rgba(0, 0, 0, 0.42);
}

.main-photo {
  inset: 0;
  width: 100%;
  height: 100%;
  object-position: 50% 31%;
  filter: saturate(1.06) contrast(1.08) brightness(0.72);
}

.accent-photo {
  right: 22px;
  bottom: 22px;
  z-index: 1;
  width: min(42%, 240px);
  aspect-ratio: 1;
  border: 1px solid rgba(240, 217, 155, 0.34);
  border-radius: 8px;
  filter: saturate(1.04) contrast(1.08) brightness(0.86);
  object-position: 28% 38%;
}

.closing-section {
  display: grid;
  min-height: 54svh;
  place-items: center;
  text-align: center;
  background:
    linear-gradient(180deg, transparent, rgba(0, 0, 0, 0.36)),
    radial-gradient(circle at 50% 0%, rgba(240, 217, 155, 0.12), transparent 28rem);
}

.closing-section h2 {
  margin-top: 4px;
}

.closing-section p {
  max-width: 520px;
  margin-top: 20px;
}

.closing-section .primary-link {
  margin-top: 30px;
}

.site-footer {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 10px 18px;
  padding: 22px 18px calc(24px + env(safe-area-inset-bottom));
  border-top: 1px solid rgba(240, 217, 155, 0.12);
  background: rgba(3, 9, 7, 0.82);
  color: rgba(247, 241, 228, 0.56);
  font-size: 13px;
  line-height: 1.6;
  text-align: center;
}

.site-footer a {
  color: rgba(240, 217, 155, 0.78);
}

.reveal {
  transform: none;
  opacity: 1;
}

.js .reveal {
  transform: translateY(18px);
  opacity: 0;
  transition: transform 700ms ease, opacity 700ms ease;
}

.js .reveal.is-visible {
  transform: translateY(0);
  opacity: 1;
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    animation: none !important;
    transition-duration: 0.01ms !important;
  }

  .reveal {
    transform: none;
    opacity: 1;
  }
}

@media (max-width: 1040px) {
  .collection-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .standard-panel,
  .atelier-section {
    grid-template-columns: 1fr;
  }

  .standard-panel .section-kicker,
  .standard-panel h2,
  .standard-panel .standard-lead,
  .standard-list {
    grid-column: auto;
    grid-row: auto;
  }
}

@media (max-width: 680px) {
  .topbar {
    padding-inline: 16px;
  }

  .brand-emblem {
    width: 38px;
    height: 38px;
    font-size: 17px;
  }

  .brand-text strong {
    font-size: 16px;
  }

  .top-nav {
    gap: 8px;
    padding: 8px 10px;
    font-size: 12px;
  }

  .hero {
    min-height: 92svh;
    padding: calc(98px + env(safe-area-inset-top)) 18px 60px;
  }

  .hero-media img {
    object-position: 67% 54%;
  }

  .hero-shade {
    background:
      linear-gradient(90deg, rgba(2, 8, 6, 0.96) 0%, rgba(2, 8, 6, 0.72) 56%, rgba(2, 8, 6, 0.48) 100%),
      linear-gradient(0deg, rgba(2, 8, 6, 0.94), transparent 58%);
  }

  .hero h1 {
    max-width: 6.4em;
    font-size: clamp(40px, 13vw, 60px);
  }

  .hero-copy {
    max-width: 20em;
    font-size: 16px;
    line-height: 1.75;
  }

  .hero-actions {
    gap: 10px;
    margin-top: 28px;
  }

  .primary-link,
  .ghost-link {
    min-height: 46px;
    padding: 0 18px;
  }

  .hero-metrics {
    grid-template-columns: 1fr;
    width: min(300px, 100%);
    margin-top: 34px;
  }

  .hero-metrics div {
    display: flex;
    align-items: baseline;
    justify-content: space-between;
    gap: 14px;
    padding: 13px 14px;
  }

  .hero-metrics dt {
    margin-bottom: 0;
    font-size: 15px;
  }

  .section {
    padding-inline: 18px;
  }

  .section-heading {
    grid-template-columns: 1fr;
    gap: 18px;
  }

  .collection-grid,
  .standard-list {
    grid-template-columns: 1fr;
  }

  .jade-card {
    min-height: 344px;
  }

  .standard-panel {
    padding: 24px;
  }

  .atelier-stage {
    min-height: 360px;
  }

  .accent-photo {
    width: 38%;
    right: 14px;
    bottom: 14px;
  }
}

@media (max-width: 430px) {
  .top-nav a {
    padding: 3px 0;
  }

  .hero h1 {
    font-size: 43px;
  }

  .hero-copy {
    max-width: 18em;
  }

  .hero-actions {
    width: min(290px, 100%);
  }

  .primary-link,
  .ghost-link {
    flex: 1 1 128px;
  }
}