:root {
  --ink: #1f211c;
  --muted: #686a60;
  --paper: #f3f0e8;
  --paper-deep: #e8e3d8;
  --forest: #1f2a22;
  --wood: #7c5d43;
  --line: rgba(31, 33, 28, .14);
  --white: #fffdf7;
  --shell: 1320px;
  --pad: clamp(20px, 4vw, 56px);
  --serif: "Songti SC", "STSong", "SimSun", serif;
  --sans: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; color: var(--ink); background: var(--paper); font-family: var(--sans); line-height: 1.6; }
img { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
button { color: inherit; font: inherit; }
.shell { width: min(100% - (var(--pad) * 2), var(--shell)); margin-inline: auto; }
.section-pad { padding-block: clamp(88px, 10vw, 150px); }
.sr-only { position: absolute; width: 1px; height: 1px; margin: -1px; padding: 0; overflow: hidden; clip: rect(0, 0, 0, 0); border: 0; }
.skip-link { position: fixed; left: 12px; top: -60px; z-index: 200; padding: 10px 14px; background: var(--white); border-radius: 4px; }
.skip-link:focus { top: 12px; }
:focus-visible { outline: 2px solid #b97b48; outline-offset: 4px; }

.site-header { position: fixed; inset: 0 0 auto; z-index: 100; color: var(--white); transition: color .25s ease, background .25s ease, border-color .25s ease; border-bottom: 1px solid transparent; }
.site-header:not(.is-scrolled) { background: rgba(31, 42, 34, .82); backdrop-filter: blur(12px); }
.site-header.is-scrolled { color: var(--ink); background: rgba(243, 240, 232, .94); border-color: var(--line); backdrop-filter: blur(18px); }
.header-inner { height: 84px; display: flex; align-items: center; justify-content: space-between; gap: 28px; }
.brand { display: inline-flex; align-items: baseline; gap: 11px; flex: 0 0 auto; }
.brand-cn { font-family: var(--serif); font-size: 27px; letter-spacing: .15em; font-weight: 700; }
.brand-en { font-size: 10px; letter-spacing: .3em; opacity: .72; }
.site-nav { display: flex; align-items: center; gap: clamp(18px, 2.4vw, 34px); font-size: 13px; letter-spacing: .06em; }
.site-nav > a { position: relative; padding-block: 8px; }
.site-nav > a:not(.nav-cta)::after { content: ""; position: absolute; left: 0; right: 100%; bottom: 1px; height: 1px; background: currentColor; transition: right .25s ease; }
.site-nav > a:hover::after { right: 0; }
.nav-cta { padding: 10px 18px !important; border: 1px solid currentColor; border-radius: 999px; }
.menu-toggle { display: none; width: 42px; height: 42px; padding: 9px; border: 0; background: transparent; }
.menu-toggle > span:not(.sr-only) { display: block; height: 1px; margin: 5px 0; background: currentColor; transition: transform .25s ease, opacity .25s ease; }

.hero { position: relative; min-height: clamp(720px, 82vh, 900px); padding-top: 84px; display: grid; grid-template-columns: minmax(420px, .82fr) minmax(0, 1.18fr); align-items: center; overflow: hidden; color: var(--white); background: var(--forest); }
.hero-media { position: relative; grid-column: 2; grid-row: 1; width: 100%; height: auto; object-fit: contain; transform: none; }
.hero-shade { display: none; }
.hero-content { position: relative; z-index: 2; grid-column: 1; grid-row: 1; width: auto; max-width: 760px; margin: 0; padding: clamp(82px, 9vw, 138px) clamp(44px, 6vw, 96px) clamp(82px, 9vw, 138px) max(var(--pad), calc((100vw - var(--shell)) / 2)); }
.kicker { margin: 0 0 22px; color: var(--muted); font-size: 11px; font-weight: 700; letter-spacing: .23em; }
.kicker.light { color: rgba(255, 253, 247, .72); }
.hero h1 { max-width: 700px; margin: 0; font-family: var(--serif); font-size: clamp(58px, 5.8vw, 100px); font-weight: 500; line-height: .99; letter-spacing: -.045em; text-wrap: balance; }
.hero-lead { margin: 30px 0 0; font-size: clamp(17px, 2vw, 24px); letter-spacing: .05em; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 38px; }
.button { display: inline-flex; min-height: 52px; align-items: center; justify-content: center; padding: 13px 24px; border: 1px solid transparent; font-size: 13px; font-weight: 700; letter-spacing: .06em; transition: transform .22s ease, background .22s ease, color .22s ease; }
.button:hover { transform: translateY(-2px); }
.button-light { color: var(--ink); background: var(--white); }
.button-ghost { color: var(--white); border-color: rgba(255, 255, 255, .52); background: rgba(255, 255, 255, .04); backdrop-filter: blur(5px); }
.button-ghost:hover { color: var(--ink); background: var(--white); }
.hero-scroll { display: none; }
.hero-scroll i { display: block; width: 1px; height: 60px; background: rgba(255, 255, 255, .5); }

.statement-grid { display: grid; grid-template-columns: minmax(170px, .55fr) minmax(0, 1.45fr); gap: 48px; align-items: start; }
.statement { max-width: 920px; margin: 0 0 34px; font-family: var(--serif); font-size: clamp(28px, 4vw, 52px); line-height: 1.55; letter-spacing: -.02em; }
.text-link { display: inline-flex; align-items: center; gap: 10px; padding-bottom: 8px; border-bottom: 1px solid currentColor; font-size: 13px; font-weight: 700; letter-spacing: .05em; }
.text-link span { transition: transform .2s ease; }
.text-link:hover span { transform: translate(3px, -3px); }

.products { border-top: 1px solid var(--line); background: var(--paper-deep); }
.section-head { display: grid; grid-template-columns: minmax(0, 1.25fr) minmax(260px, .75fr); gap: 56px; align-items: end; margin-bottom: clamp(52px, 7vw, 88px); }
.section-head h2, .material-copy h2, .research-inner h2, .visit h2 { margin: 0; font-family: var(--serif); font-size: clamp(44px, 6vw, 78px); font-weight: 500; line-height: 1.14; letter-spacing: -.045em; }
.section-head > p { max-width: 500px; margin: 0; color: var(--muted); font-size: 16px; line-height: 1.95; }
.product-grid { display: grid; grid-template-columns: repeat(12, 1fr); gap: clamp(14px, 2vw, 26px); }
.product-card { grid-column: span 4; display: grid; align-self: start; gap: 18px; }
.product-card-wide { grid-column: span 8; }
.product-card figure { margin: 0; overflow: hidden; background: #dfdbd0; }
.product-card img { width: 100%; height: auto; object-fit: contain; transition: opacity .35s ease; }
.product-card:hover img { opacity: .92; }
.product-card > div { display: grid; grid-template-columns: 34px auto 1fr; align-items: baseline; gap: 10px; border-top: 1px solid var(--line); padding-top: 14px; }
.product-card span, .product-card small { color: var(--muted); font-size: 10px; letter-spacing: .18em; }
.product-card small { justify-self: end; }
.product-card h3 { margin: 0; font-family: var(--serif); font-size: 25px; font-weight: 500; }
.section-action { margin-top: 54px; text-align: right; }

.spaces { color: var(--white); background: var(--forest); }
.section-head-light h2 { color: var(--white); }
.section-head-light > p { color: rgba(255, 253, 247, .64); }
.space-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: clamp(14px, 2vw, 26px); align-items: start; }
.space-card { position: relative; display: grid; overflow: hidden; background: #303a31; }
.space-card-tall { grid-row: auto; }
.space-card img { width: 100%; height: auto; object-fit: contain; transition: opacity .35s ease; }
.space-card:hover img { opacity: .92; }
.space-card::after { display: none; }
.space-card > div { position: relative; z-index: 2; padding: clamp(20px, 2.4vw, 32px); }
.space-card p { margin: 0 0 8px; color: rgba(255, 255, 255, .62); font-size: 10px; letter-spacing: .18em; }
.space-card h3 { max-width: 520px; margin: 0; font-family: var(--serif); font-size: clamp(22px, 2.2vw, 31px); font-weight: 500; line-height: 1.35; }
.light-action, .light-link { color: var(--white); }

.materials { background: var(--paper); }
.material-grid { display: grid; grid-template-columns: minmax(0, 1.05fr) minmax(360px, .95fr); gap: clamp(44px, 8vw, 120px); align-items: center; }
.material-photo { position: relative; overflow: hidden; background: #ded8cb; }
.material-photo img { width: 100%; height: auto; object-fit: contain; transform: none; }
.material-photo::after { content: ""; position: absolute; inset: auto 0 0; height: 34%; background: linear-gradient(transparent, rgba(17, 20, 17, .62)); }
.material-photo span { position: absolute; z-index: 2; left: 28px; bottom: 28px; color: rgba(255, 255, 255, .82); font-size: 11px; letter-spacing: .16em; }
.material-copy h2 { margin-bottom: 30px; }
.large-copy { margin: 0 0 36px; color: var(--muted); font-size: 18px; line-height: 1.9; }
.material-list { margin: 0 0 38px; border-top: 1px solid var(--line); }
.material-list > div { display: grid; grid-template-columns: 46px 1fr; gap: 14px; padding: 21px 0; border-bottom: 1px solid var(--line); }
.material-list dt { color: var(--muted); font-size: 10px; letter-spacing: .15em; }
.material-list dd { margin: 0; display: grid; gap: 5px; }
.material-list strong { font-family: var(--serif); font-size: 19px; font-weight: 600; }
.material-list span { color: var(--muted); font-size: 13px; line-height: 1.75; }

.research-callout { color: var(--white); background: #151a16; border-top: 1px solid rgba(255, 255, 255, .1); border-bottom: 1px solid rgba(255, 255, 255, .1); }
.research-inner { min-height: 600px; display: grid; grid-template-columns: .45fr 1.1fr .45fr; gap: 48px; align-items: center; padding-block: 80px; }
.research-mark { margin: 0; color: rgba(255, 255, 255, .06); font-family: var(--serif); font-size: clamp(190px, 25vw, 360px); line-height: .75; }
.research-inner h2 { max-width: 750px; }
.research-inner > div > p:last-child { max-width: 680px; margin: 30px 0 0; color: rgba(255, 255, 255, .62); font-size: 16px; line-height: 1.95; }
.round-link { width: 150px; aspect-ratio: 1; justify-self: end; border: 1px solid rgba(255, 255, 255, .4); border-radius: 50%; display: grid; place-content: center; justify-items: center; gap: 8px; font-size: 12px; transition: color .25s ease, background .25s ease, transform .25s ease; }
.round-link b { font-size: 22px; font-weight: 400; }
.round-link:hover { color: var(--ink); background: var(--white); transform: rotate(3deg); }

.showrooms { background: var(--paper); }
.showroom-grid { display: grid; grid-template-columns: repeat(4, 1fr); border-top: 1px solid var(--line); border-left: 1px solid var(--line); }
.showroom-card { min-height: 320px; padding: clamp(24px, 3vw, 38px); display: flex; flex-direction: column; border-right: 1px solid var(--line); border-bottom: 1px solid var(--line); transition: color .25s ease, background .25s ease; }
.showroom-card:hover { color: var(--white); background: var(--forest); }
.showroom-card > p { margin: 0 0 22px; color: var(--muted); font-size: 10px; letter-spacing: .18em; }
.showroom-card:hover > p { color: rgba(255, 255, 255, .58); }
.showroom-card h3 { margin: 0 0 auto; font-family: var(--serif); font-size: 42px; font-weight: 500; }
.showroom-card address { margin: 28px 0 10px; color: var(--muted); font-size: 13px; line-height: 1.8; font-style: normal; }
.showroom-card:hover address { color: rgba(255, 255, 255, .62); }
.showroom-card > a { font-size: 12px; font-weight: 700; letter-spacing: .06em; }

.visit { position: relative; display: grid; overflow: hidden; color: var(--white); background: #252d26; }
.visit-media { position: relative; width: 100%; height: auto; object-fit: contain; }
.visit-shade { display: none; }
.visit-inner { position: relative; z-index: 2; min-height: 0; padding-block: clamp(100px, 10vw, 150px); display: flex; flex-direction: column; justify-content: center; align-items: flex-start; }
.visit h2 { max-width: 1000px; font-size: clamp(52px, 7.5vw, 102px); }
.visit-inner > p:not(.kicker) { margin: 30px 0 0; color: rgba(255, 255, 255, .68); font-size: 18px; }
.visit-inner .visit-note { position: absolute; right: 0; bottom: 34px; margin: 0; color: rgba(255, 255, 255, .56); font-size: 9px; letter-spacing: .2em; }

.site-footer { padding: 74px 0 24px; color: var(--ink); background: #dcd5c7; }
.footer-main { display: grid; grid-template-columns: .7fr 1.2fr .8fr; gap: 50px; align-items: start; padding-bottom: 68px; }
.footer-brand { align-self: start; }
.footer-main > p { max-width: 520px; margin: 0; color: var(--muted); font-size: 14px; line-height: 1.9; }
.footer-main nav { display: grid; grid-template-columns: repeat(2, 1fr); gap: 14px 28px; font-size: 13px; }
.footer-legal { display: flex; justify-content: space-between; gap: 28px; padding-top: 22px; border-top: 1px solid var(--line); color: var(--muted); font-size: 11px; }
.footer-legal > div { display: flex; flex-wrap: wrap; gap: 18px; }
.footer-legal a:hover { color: var(--ink); }

.motion-ready .reveal { opacity: 0; transform: translateY(28px); transition: opacity .85s ease, transform .85s cubic-bezier(.2,.65,.2,1); }
.motion-ready .reveal.is-visible { opacity: 1; transform: none; }

@media (max-width: 1050px) {
  .product-card { grid-column: span 6; }
  .product-card-wide { grid-column: span 12; }
  .showroom-grid { grid-template-columns: repeat(2, 1fr); }
  .research-inner { grid-template-columns: .35fr 1fr; }
  .round-link { grid-column: 2; justify-self: start; }
}

@media (max-width: 820px) {
  :root { --pad: 20px; }
  .header-inner { height: 68px; }
  .menu-toggle { display: block; position: relative; z-index: 3; }
  .site-nav { position: fixed; inset: 0; z-index: 2; width: 100%; height: 100svh; min-height: 100vh; padding: 120px 28px 46px; display: flex; flex-direction: column; align-items: flex-start; gap: 6px; color: var(--white); background: var(--forest); transform: translateY(-102%); overflow-y: auto; transition: transform .35s cubic-bezier(.2,.65,.2,1); }
  .site-nav.is-open { transform: none; }
  .site-nav > a { width: 100%; padding: 14px 0; font-family: var(--serif); font-size: 26px; border-bottom: 1px solid rgba(255, 255, 255, .12); }
  .site-nav .nav-cta { margin-top: 22px; padding: 12px 18px !important; width: auto; font-family: var(--sans); font-size: 13px; }
  .site-header.menu-open { color: var(--white); }
  .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); }
  .site-header:not(.is-scrolled) { background: rgba(31, 42, 34, .86); backdrop-filter: blur(12px); }
  .hero { min-height: 0; padding-top: 68px; grid-template-columns: 1fr; align-items: start; }
  .hero-media { grid-column: 1; grid-row: 1; width: 100%; height: auto; }
  .hero-content { grid-column: 1; grid-row: 2; width: 100%; max-width: none; padding: 64px var(--pad) 86px; }
  .hero h1 { font-size: clamp(54px, 17vw, 82px); }
  .hero-scroll { display: none; }
  .statement-grid, .section-head, .material-grid { grid-template-columns: 1fr; gap: 30px; }
  .statement { font-size: 29px; line-height: 1.58; }
  .section-head { align-items: start; }
  .section-head h2, .material-copy h2, .research-inner h2 { font-size: 46px; }
  .space-grid { grid-template-columns: 1fr; }
  .space-card, .space-card-tall { grid-row: auto; min-height: 0; }
  .material-photo, .material-photo img { min-height: 0; }
  .research-inner { min-height: auto; grid-template-columns: 1fr; gap: 34px; }
  .research-mark { display: none; }
  .round-link { grid-column: auto; width: 128px; justify-self: start; }
  .footer-main { grid-template-columns: 1fr; gap: 32px; }
}

@media (max-width: 560px) {
  .section-pad { padding-block: 82px; }
  .kicker { margin-bottom: 16px; }
  .hero-lead { max-width: 310px; font-size: 16px; }
  .hero-actions { display: grid; width: 100%; max-width: 330px; }
  .button { width: 100%; }
  .product-grid { gap: 44px 12px; }
  .product-card, .product-card-wide { grid-column: span 12; }
  .product-card figure, .product-card-wide figure { aspect-ratio: auto; }
  .space-card, .space-card-tall { min-height: 0; }
  .material-photo, .material-photo img { min-height: 0; }
  .showroom-grid { grid-template-columns: 1fr; }
  .showroom-card { min-height: 270px; }
  .visit-inner { min-height: 0; padding-block: 82px 100px; }
  .visit h2 { font-size: 50px; }
  .visit-inner .visit-note { right: auto; left: 0; bottom: 24px; }
  .footer-legal { flex-direction: column; }
  .footer-legal > div { display: grid; gap: 8px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { scroll-behavior: auto !important; transition-duration: .01ms !important; animation-duration: .01ms !important; animation-iteration-count: 1 !important; }
  .motion-ready .reveal { opacity: 1; transform: none; }
}