:root {
  --ink: #102625;
  --ink-soft: #23413f;
  --paper: #f5f7f6;
  --mist: #e4ebea;
  --line: #cdd9d7;
  --gold: #d7ae5e;
  --gold-pale: #f1dba6;
  --coral: #cf6248;
  --white: #ffffff;
  --body: #2a3534;
  --font-sans: "Microsoft YaHei", "Noto Sans SC", sans-serif;
  --font-serif: "Songti SC", "Noto Serif SC", serif;
  --container: min(1180px, calc(100% - 48px));
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  min-width: 320px;
  background: var(--paper);
  color: var(--body);
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.75;
}

body.menu-open { overflow: hidden; }

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

button { font: inherit; }

.container { width: var(--container); margin: 0 auto; }

.skip-link {
  position: fixed;
  z-index: 100;
  top: -60px;
  left: 16px;
  background: var(--white);
  color: var(--ink);
  padding: 8px 12px;
  border-radius: 4px;
}

.skip-link:focus { top: 16px; }

.site-header {
  position: absolute;
  z-index: 20;
  top: 0;
  width: 100%;
  color: var(--white);
  border-bottom: 1px solid rgba(255, 255, 255, 0.16);
}

.site-header.is-scrolled {
  position: fixed;
  background: rgba(16, 38, 37, 0.96);
  box-shadow: 0 8px 24px rgba(8, 24, 23, 0.18);
}

.header-inner {
  min-height: 82px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

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

.brand-mark {
  display: grid;
  place-items: center;
  width: 38px;
  height: 38px;
  border: 1px solid var(--gold);
  color: var(--gold-pale);
  font-family: var(--font-serif);
  font-size: 22px;
  line-height: 1;
}

.brand-text { display: grid; line-height: 1.25; }
.brand-text strong { font-weight: 600; font-size: 15px; }
.brand-text small { margin-top: 3px; color: rgba(255, 255, 255, 0.62); font-size: 9px; line-height: 1.2; }

.main-navigation { display: flex; align-items: center; gap: 28px; }
.nav-link { position: relative; padding: 27px 0; font-size: 14px; color: rgba(255, 255, 255, 0.75); transition: color 160ms ease; }
.nav-link::after { position: absolute; content: ""; left: 0; bottom: 19px; width: 100%; height: 1px; background: var(--gold); transform: scaleX(0); transform-origin: center; transition: transform 160ms ease; }
.nav-link:hover, .nav-link:focus-visible, .nav-link.active { color: var(--white); }
.nav-link.active::after, .nav-link:hover::after, .nav-link:focus-visible::after { transform: scaleX(1); }

.menu-toggle { display: none; }

.hero {
  position: relative;
  min-height: 770px;
  overflow: hidden;
  padding: 160px 0 90px;
  background: var(--ink);
  color: var(--white);
}

.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  opacity: 0.2;
  background-image: linear-gradient(rgba(255, 255, 255, 0.14) 1px, transparent 1px), linear-gradient(90deg, rgba(255, 255, 255, 0.14) 1px, transparent 1px);
  background-size: 72px 72px;
  mask-image: linear-gradient(to bottom, transparent, black 25%, black 75%, transparent);
}

.hero-grid { position: relative; z-index: 1; display: grid; grid-template-columns: minmax(0, 1.08fr) minmax(380px, 0.92fr); align-items: center; gap: 64px; }
.hero-copy { padding: 42px 0; }
.eyebrow { margin: 0 0 16px; color: var(--gold-pale); font-size: 12px; font-weight: 600; line-height: 1.4; }
.eyebrow-dark { color: var(--coral); }

h1, h2, h3, p { margin-top: 0; }
h1, h2, h3 { color: inherit; line-height: 1.25; }
h1 { max-width: 700px; margin-bottom: 28px; font-size: clamp(38px, 5vw, 62px); font-weight: 600; }
h2 { margin-bottom: 0; color: var(--ink); font-size: clamp(30px, 3.5vw, 44px); font-weight: 600; }
h3 { margin-bottom: 12px; font-size: 22px; font-weight: 600; }

.hero-lead { max-width: 590px; margin-bottom: 32px; color: rgba(255, 255, 255, 0.76); font-size: 17px; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; }
.button { display: inline-flex; align-items: center; justify-content: center; min-height: 46px; padding: 0 20px; border: 1px solid transparent; border-radius: 4px; font-weight: 600; font-size: 14px; transition: background 160ms ease, color 160ms ease, border-color 160ms ease, transform 160ms ease; }
.button:hover { transform: translateY(-2px); }
.button-primary { background: var(--gold); color: #1a2928; }
.button-primary:hover { background: var(--gold-pale); }
.button-secondary { border-color: rgba(255, 255, 255, 0.5); color: var(--white); }
.button-secondary:hover { border-color: var(--white); background: rgba(255, 255, 255, 0.08); }

.hero-meta { display: flex; flex-wrap: wrap; gap: 0; margin-top: 62px; }
.hero-meta span { padding: 0 18px; border-left: 1px solid rgba(255, 255, 255, 0.34); color: rgba(255, 255, 255, 0.68); font-size: 13px; }
.hero-meta span:first-child { padding-left: 0; border-left: 0; }

.hero-art { position: relative; width: 100%; min-height: 500px; }
.art-grid { position: absolute; inset: 6% 3% 3% 7%; border: 1px solid rgba(255, 255, 255, 0.19); background-image: linear-gradient(rgba(255, 255, 255, 0.1) 1px, transparent 1px), linear-gradient(90deg, rgba(255, 255, 255, 0.1) 1px, transparent 1px); background-size: 44px 44px; }
.art-sun { position: absolute; right: 20%; top: 6%; width: 120px; height: 120px; border-radius: 50%; background: var(--coral); opacity: 0.98; }
.art-ring { position: absolute; width: 292px; height: 292px; border: 48px solid var(--gold); border-radius: 50%; box-shadow: inset -16px -18px 0 rgba(92, 59, 15, 0.2), 16px 22px 0 rgba(0, 0, 0, 0.11); }
.art-ring-one { top: 108px; right: 13%; transform: rotate(-30deg) skewX(-8deg); }
.art-ring-two { width: 168px; height: 168px; bottom: 7%; left: 5%; border-width: 27px; border-color: var(--gold-pale); transform: rotate(20deg); }
.art-pillar { position: absolute; right: 9%; bottom: 3%; width: 92px; height: 310px; background: var(--ink-soft); border-top: 7px solid var(--gold-pale); }
.art-sphere { position: absolute; bottom: 14%; right: 29%; width: 92px; height: 92px; border-radius: 50%; background: var(--coral); box-shadow: -23px -18px 0 rgba(255, 255, 255, 0.1); }
.art-label { position: absolute; display: flex; align-items: center; gap: 10px; color: var(--white); font-size: 13px; }
.art-label span { display: grid; place-items: center; width: 27px; height: 27px; border: 1px solid rgba(255, 255, 255, 0.5); color: var(--gold-pale); font-size: 11px; }
.art-label strong { font-weight: 500; }
.art-label-top { left: 0; top: 8%; }
.art-label-bottom { left: 0; bottom: 8%; }

.scroll-cue { position: absolute; z-index: 2; bottom: 30px; left: max(24px, calc((100% - 1180px) / 2)); display: inline-flex; align-items: center; gap: 12px; color: rgba(255, 255, 255, 0.64); font-size: 12px; }
.scroll-cue i { position: relative; width: 28px; height: 1px; background: var(--gold); }
.scroll-cue i::after { position: absolute; content: ""; right: 0; top: -3px; width: 7px; height: 7px; border-right: 1px solid var(--gold); border-bottom: 1px solid var(--gold); transform: rotate(45deg); }

.section-light { background: var(--paper); }
.section-muted { background: var(--mist); }
.intro { padding: 120px 0; }
.intro-grid { display: grid; grid-template-columns: minmax(220px, 0.7fr) minmax(0, 1.3fr); gap: 8%; }
.intro-copy { max-width: 730px; }
.intro-statement { margin-bottom: 24px; color: var(--ink); font-family: var(--font-serif); font-size: clamp(28px, 3vw, 38px); font-weight: 500; line-height: 1.45; }
.intro-copy > p:not(.intro-statement) { max-width: 680px; margin-bottom: 24px; color: #52605e; }
.text-link { display: inline-flex; gap: 8px; align-items: center; color: var(--ink); font-weight: 600; border-bottom: 1px solid var(--coral); }
.text-link span { font-size: 20px; line-height: 1; transition: transform 160ms ease; }
.text-link:hover span { transform: translateX(4px); }

.business { padding: 112px 0 120px; }
.section-heading-row { display: flex; justify-content: space-between; gap: 42px; align-items: end; margin-bottom: 46px; }
.section-description { max-width: 350px; margin: 0; color: #52605e; font-size: 15px; }
.business-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1px; background: #afc1be; border: 1px solid #afc1be; }
.business-card { position: relative; min-height: 320px; padding: 32px; overflow: hidden; background: var(--paper); transition: background 180ms ease, color 180ms ease; }
.business-card:hover { background: var(--ink); color: var(--white); }
.business-card:hover h3, .business-card:hover p { color: inherit; }
.card-index { position: absolute; top: 24px; right: 26px; color: #899a97; font-size: 12px; }
.business-card p { max-width: 270px; margin-bottom: 0; color: #5b6765; font-size: 14px; }
.business-icon { position: relative; width: 80px; height: 80px; margin: 44px 0 26px; }
.jewelry-icon i, .jewelry-icon b { position: absolute; border: 6px solid var(--gold); border-radius: 50%; }
.jewelry-icon i { left: 1px; bottom: 2px; width: 54px; height: 54px; }
.jewelry-icon b { right: 0; top: 0; width: 41px; height: 41px; border-color: var(--coral); }
.craft-icon i { position: absolute; left: 5px; bottom: 5px; width: 60px; height: 60px; border: 8px solid var(--ink-soft); border-top-color: var(--gold); border-radius: 50% 50% 6px 6px; }
.craft-icon b { position: absolute; right: 0; top: 4px; width: 25px; height: 52px; background: var(--coral); }
.global-icon i { position: absolute; top: 4px; left: 3px; width: 65px; height: 65px; border: 2px solid var(--ink-soft); border-radius: 50%; }
.global-icon i::before, .global-icon i::after { content: ""; position: absolute; inset: 11px; border: 1px solid var(--ink-soft); border-radius: 50%; }
.global-icon i::after { inset: 29px 0; border-left: 0; border-right: 0; border-radius: 0; }
.global-icon b { position: absolute; right: 0; bottom: 0; width: 19px; height: 19px; background: var(--gold); border-radius: 50%; }
.business-card:hover .global-icon i, .business-card:hover .global-icon i::before, .business-card:hover .global-icon i::after { border-color: var(--gold-pale); }
.business-card:hover .craft-icon i { border-color: var(--gold-pale); border-top-color: var(--coral); }

.products { padding: 112px 0 118px; color: var(--white); }
.products h2 { color: var(--white); }
.products .section-description { color: rgba(255, 255, 255, 0.66); }
.product-grid { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 16px; }
.product-card { position: relative; display: flex; min-height: 420px; overflow: hidden; padding: 0; border: 0; border-radius: 0; color: var(--white); text-align: left; cursor: pointer; background: #24413e; transition: transform 180ms ease, box-shadow 180ms ease; }
.product-card:hover, .product-card:focus-visible { z-index: 1; transform: translateY(-6px); box-shadow: 0 18px 0 rgba(0, 0, 0, 0.18); outline: 2px solid var(--gold-pale); outline-offset: 3px; }
.product-card-jewelry { background: #8f5a39; }
.product-card-craft { background: #245b59; }
.product-card-market { background: #263344; }
.product-visual { position: absolute; inset: 0; overflow: hidden; }
.product-card-content { position: relative; z-index: 1; align-self: end; width: 100%; padding: 28px; background: linear-gradient(transparent, rgba(0, 0, 0, 0.62)); }
.product-card-content strong, .product-card-content small, .product-kicker { display: block; }
.product-kicker { margin-bottom: 8px; color: var(--gold-pale); font-size: 11px; font-weight: 600; }
.product-card-content strong { margin-bottom: 6px; font-size: 24px; font-weight: 600; }
.product-card-content small { color: rgba(255, 255, 255, 0.75); font-size: 13px; line-height: 1.6; }
.card-arrow { position: absolute; z-index: 1; top: 24px; right: 24px; display: grid; place-items: center; width: 36px; height: 36px; border: 1px solid rgba(255, 255, 255, 0.65); border-radius: 50%; font-size: 19px; transition: background 160ms ease, color 160ms ease; }
.product-card:hover .card-arrow { background: var(--gold-pale); color: var(--ink); }
.jewel-circle { position: absolute; border: 22px solid var(--gold-pale); border-radius: 50%; box-shadow: inset -8px -8px 0 rgba(99, 60, 24, 0.2); }
.jewel-circle-one { top: 64px; left: 56px; width: 193px; height: 193px; transform: rotate(-28deg) skewX(-12deg); }
.jewel-circle-two { top: 132px; right: -37px; width: 146px; height: 146px; border-color: var(--gold); transform: rotate(21deg); }
.jewel-stone { position: absolute; top: 65px; left: 182px; width: 84px; height: 84px; background: var(--coral); transform: rotate(45deg); box-shadow: 15px 15px 0 rgba(0, 0, 0, 0.15); }
.craft-arch { position: absolute; border: 18px solid var(--gold-pale); border-radius: 60px 60px 0 0; }
.craft-arch-one { top: 57px; left: 50px; width: 166px; height: 245px; border-bottom: 0; }
.craft-arch-two { top: 109px; right: -30px; width: 143px; height: 207px; border-color: var(--coral); border-bottom: 0; }
.craft-dot { position: absolute; border-radius: 50%; }
.craft-dot-one { top: 48px; right: 86px; width: 29px; height: 29px; background: var(--gold); }
.craft-dot-two { bottom: 88px; left: 91px; width: 38px; height: 38px; background: var(--ink); }
.market-orbit { position: absolute; border: 1px solid rgba(241, 219, 166, 0.8); border-radius: 50%; }
.market-orbit-one { top: 62px; left: 50%; width: 253px; height: 253px; transform: translateX(-50%) rotate(-31deg) scaleY(0.52); }
.market-orbit-two { top: 62px; left: 50%; width: 253px; height: 253px; transform: translateX(-50%) rotate(58deg) scaleY(0.52); }
.market-core { position: absolute; top: 145px; left: calc(50% - 39px); width: 78px; height: 78px; border-radius: 50%; background: var(--gold); box-shadow: 12px 14px 0 rgba(0, 0, 0, 0.15); }
.market-pin { position: absolute; z-index: 1; width: 12px; height: 12px; border: 3px solid var(--coral); border-radius: 50%; }
.market-pin-one { top: 109px; left: 76px; }
.market-pin-two { right: 53px; top: 225px; border-color: var(--gold-pale); }
.product-note { margin: 20px 0 0; color: rgba(255, 255, 255, 0.55); font-size: 13px; }

.process { padding: 120px 0; }
.process-grid { display: grid; grid-template-columns: minmax(220px, 0.65fr) minmax(0, 1.35fr); gap: 8%; }
.process-list { display: grid; gap: 0; margin: 0; padding: 0; list-style: none; border-top: 1px solid var(--line); }
.process-list li { display: grid; grid-template-columns: 70px 1fr; gap: 22px; padding: 22px 0; border-bottom: 1px solid var(--line); }
.process-list span { color: var(--coral); font-size: 13px; font-weight: 600; }
.process-list strong { display: block; margin-bottom: 4px; color: var(--ink); font-size: 19px; font-weight: 600; }
.process-list p { margin: 0; color: #61706d; font-size: 14px; }

.section-accent { background: var(--coral); color: var(--white); }
.cooperate { padding: 95px 0; }
.cooperate-inner { display: grid; grid-template-columns: minmax(0, 1.1fr) minmax(280px, 0.9fr); gap: 70px; align-items: end; }
.cooperate h2 { color: var(--white); }
.cooperate p:last-child { max-width: 470px; margin: 0; color: rgba(255, 255, 255, 0.84); }
.cooperate .eyebrow { color: #ffe0c9; }

.site-footer { padding: 30px 0; background: #0b1d1c; color: var(--white); }
.footer-inner { display: flex; align-items: center; justify-content: space-between; gap: 28px; }
.footer-brand .brand-mark { width: 33px; height: 33px; font-size: 19px; }
.footer-brand .brand-text strong { font-size: 14px; }
.site-footer p { margin: 0; color: rgba(255, 255, 255, 0.48); font-size: 12px; }

.product-dialog { width: min(520px, calc(100% - 40px)); padding: 42px; border: 0; border-top: 6px solid var(--gold); box-shadow: 0 24px 70px rgba(0, 0, 0, 0.3); color: var(--body); }
.product-dialog::backdrop { background: rgba(6, 20, 19, 0.72); }
.product-dialog h2 { margin-bottom: 18px; font-size: 30px; }
.product-dialog > p:not(.eyebrow) { color: #52605e; }
.dialog-note { margin: 26px 0 0; padding-top: 18px; border-top: 1px solid var(--line); font-size: 13px; }
.dialog-close { position: absolute; right: 12px; top: 10px; width: 34px; height: 34px; padding: 0; border: 0; border-radius: 50%; background: transparent; color: var(--ink); font-size: 28px; line-height: 1; cursor: pointer; }
.dialog-close:hover, .dialog-close:focus-visible { background: var(--mist); }

.reveal { opacity: 0; transform: translateY(22px); transition: opacity 550ms ease, transform 550ms ease; }
.reveal.is-visible { opacity: 1; transform: translateY(0); }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: 0.01ms !important; animation-iteration-count: 1 !important; transition-duration: 0.01ms !important; }
}

@media (max-width: 860px) {
  :root { --container: min(100% - 40px, 680px); }
  .header-inner { min-height: 68px; }
  .main-navigation { position: fixed; z-index: 19; top: 68px; right: 0; left: 0; display: none; padding: 16px 20px 24px; background: #102625; border-bottom: 1px solid rgba(255, 255, 255, 0.14); box-shadow: 0 16px 28px rgba(0, 0, 0, 0.2); }
  .main-navigation.open { display: grid; }
  .nav-link { padding: 10px 0; }
  .nav-link::after { bottom: 4px; width: 34px; transform-origin: left; }
  .menu-toggle { position: relative; z-index: 20; display: grid; gap: 5px; width: 40px; height: 40px; padding: 10px; border: 1px solid rgba(255, 255, 255, 0.35); border-radius: 4px; background: transparent; cursor: pointer; }
  .menu-toggle span { display: block; width: 18px; height: 1px; background: var(--white); transition: transform 160ms ease, opacity 160ms ease; }
  .menu-toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(6px) rotate(45deg); }
  .menu-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
  .menu-toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-6px) rotate(-45deg); }
  .hero { min-height: auto; padding: 124px 0 110px; }
  .hero-grid { grid-template-columns: 1fr; gap: 10px; }
  .hero-copy { padding: 0; }
  h1 { font-size: clamp(34px, 8vw, 50px); }
  .hero-art { min-height: 390px; margin: 4px auto 0; max-width: 500px; }
  .art-ring { width: 230px; height: 230px; border-width: 37px; }
  .art-ring-two { width: 132px; height: 132px; border-width: 21px; }
  .art-pillar { height: 230px; }
  .scroll-cue { display: none; }
  .intro, .business, .products, .process { padding: 84px 0; }
  .intro-grid, .process-grid { grid-template-columns: 1fr; gap: 38px; }
  .section-heading-row, .cooperate-inner { display: grid; grid-template-columns: 1fr; gap: 22px; align-items: start; }
  .section-description { max-width: 520px; }
  .business-grid, .product-grid { grid-template-columns: 1fr; }
  .business-card { min-height: 270px; }
  .product-card { min-height: 335px; }
  .product-card-content { padding: 24px; }
  .process-list li { grid-template-columns: 52px 1fr; }
  .cooperate { padding: 75px 0; }
  .footer-inner { align-items: flex-start; flex-direction: column; }
}

@media (max-width: 480px) {
  :root { --container: calc(100% - 32px); }
  .brand-text small { display: none; }
  .hero { padding-top: 112px; }
  .hero-lead { font-size: 15px; }
  .hero-meta { margin-top: 42px; }
  .hero-meta span { padding: 0 10px; font-size: 12px; }
  .hero-art { min-height: 315px; }
  .art-grid { inset: 5% 3% 3% 4%; background-size: 32px 32px; }
  .art-sun { width: 76px; height: 76px; }
  .art-ring { width: 186px; height: 186px; border-width: 29px; }
  .art-ring-one { top: 79px; right: 9%; }
  .art-ring-two { width: 108px; height: 108px; border-width: 17px; }
  .art-pillar { width: 62px; height: 180px; }
  .art-sphere { width: 68px; height: 68px; }
  .art-label { font-size: 11px; }
  .art-label span { width: 22px; height: 22px; font-size: 9px; }
  .intro-statement { font-size: 27px; }
  .business-card { padding: 26px; }
  .product-dialog { padding: 34px 26px; }
}