:root {
  --ink: #10262f;
  --ink-deep: #07191f;
  --mist: #dfe5e3;
  --paper: #f1f3f0;
  --white: #fbfcfa;
  --gold: #b89a67;
  --line: rgba(16, 38, 47, 0.22);
  --pad: clamp(24px, 4.2vw, 76px);
  --serif: "Songti SC", "STSong", "Noto Serif CJK SC", Georgia, serif;
  --sans: "Helvetica Neue", "PingFang SC", "Noto Sans CJK SC", Arial, sans-serif;
  --utility: "Arial Narrow", "Helvetica Neue", Arial, sans-serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; background: var(--paper); color: var(--ink); font-family: var(--sans); -webkit-font-smoothing: antialiased; }
main { display: flex; flex-direction: column; }
.hero { order: 1; }.projects { order: 2; }.manifesto { order: 3; }.expertise { order: 4; }.matlook { order: 5; }.insights { order: 6; }.contact { order: 7; }
body.menu-open { overflow: hidden; }
a { color: inherit; text-decoration: none; }
button { color: inherit; font: inherit; }
img { display: block; width: 100%; }
::selection { background: var(--gold); color: var(--ink-deep); }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0; }
.skip-link { position: fixed; z-index: 1000; top: 8px; left: 8px; transform: translateY(-150%); background: var(--white); padding: 12px 18px; }
.skip-link:focus { transform: none; }

.site-header { position: fixed; z-index: 100; inset: 0 0 auto; height: 82px; display: grid; grid-template-columns: 1fr auto 1fr; align-items: center; padding: 0 var(--pad); color: var(--white); transition: background .4s, color .4s, height .4s; }
.site-header::after { content: ""; position: absolute; inset: auto var(--pad) 0; height: 1px; background: currentColor; opacity: .28; }
.site-header.is-scrolled { height: 66px; background: rgba(241,243,240,.93); color: var(--ink); backdrop-filter: blur(14px); }
.brand { display: flex; align-items: center; gap: 13px; width: max-content; }
.group-logo { width: 92px; height: 30px; object-fit: contain; filter: brightness(0) invert(1); transition: filter .4s; }
.site-header.is-scrolled .group-logo { filter: none; }
.brand-division { min-height: 31px; border-left: 1px solid currentColor; padding-left: 13px; display: flex; flex-direction: column; justify-content: center; gap: 3px; }
.brand-division b { font-size: 12.5px; line-height: 1; font-weight: 600; letter-spacing: .065em; white-space: nowrap; transform: translateY(2px); }.brand-division i { font: 600 9px/1 var(--utility); letter-spacing: .135em; white-space: nowrap; }
.desktop-nav { display: flex; gap: clamp(25px, 3vw, 54px); font-size: 13px; }
.desktop-nav a, .language-toggle { position: relative; }
.desktop-nav a::after, .language-toggle::after { content: ""; position: absolute; height: 1px; inset: auto 0 -7px; background: currentColor; transform: scaleX(0); transform-origin: right; transition: transform .3s; }
.desktop-nav a:hover::after, .language-toggle:hover::after { transform: scaleX(1); transform-origin: left; }
.header-actions { justify-self: end; display: flex; align-items: center; gap: 26px; }
.language-toggle, .menu-button { border: 0; background: none; cursor: pointer; padding: 5px; font-size: 11px; letter-spacing: .15em; }
.contact-link { padding: 11px 17px; border: 1px solid currentColor; font-size: 12px; transition: background .25s, color .25s; }
.contact-link:hover { background: currentColor; color: var(--ink); }
.site-header.is-scrolled .contact-link:hover { color: var(--paper); }
.menu-button { display: none; width: 30px; height: 30px; position: relative; }
.menu-button span:not(.sr-only) { position: absolute; left: 5px; width: 20px; height: 1px; background: currentColor; transition: transform .3s, top .3s; }
.menu-button span:first-child { top: 10px; }.menu-button span:nth-child(2) { top: 18px; }
.menu-button[aria-expanded="true"] span:first-child { top: 14px; transform: rotate(45deg); }.menu-button[aria-expanded="true"] span:nth-child(2) { top: 14px; transform: rotate(-45deg); }
.mobile-menu { position: fixed; z-index: 90; inset: 0; background: var(--ink-deep); color: var(--white); display: grid; align-items: center; padding: 90px var(--pad) 30px; opacity: 0; visibility: hidden; transition: opacity .35s, visibility .35s; }
.mobile-menu.is-open { opacity: 1; visibility: visible; }
.mobile-menu nav a { border-top: 1px solid rgba(255,255,255,.2); padding: 18px 0; display: grid; grid-template-columns: 42px 1fr; align-items: baseline; }
.mobile-menu nav a:last-child { border-bottom: 1px solid rgba(255,255,255,.2); }
.mobile-menu span { font: 10px var(--utility); opacity: .55; }.mobile-menu b { font: 32px var(--serif); }

.hero { min-height: 100svh; background: var(--ink-deep); color: var(--white); position: relative; overflow: hidden; }
.hero-intro { position: absolute; z-index: 4; top: 19vh; left: var(--pad); width: min(720px, 58vw); pointer-events: none; }
.eyebrow { margin: 0 0 20px; font: 10px/1.4 var(--utility); letter-spacing: .25em; text-transform: uppercase; }
.hero h1 { margin: 0; font: 400 clamp(58px, 7.7vw, 132px)/.98 var(--serif); letter-spacing: -.065em; }
.hero h1 span, .hero h1 em { display: block; white-space: nowrap; }.hero h1 em { margin-top: .035em; margin-left: .52em; color: transparent; -webkit-text-stroke: 1px rgba(255,255,255,.8); font-style: italic; }
.hero-copy { width: min(420px, 75%); margin: 30px 0 0 22%; font: 300 14px/1.8 var(--sans); color: rgba(255,255,255,.82); }
.hero-stage { position: absolute; inset: 0; display: flex; }
.hero-panel { position: relative; width: 10.66%; height: 100%; overflow: hidden; transition: width 1s cubic-bezier(.72,0,.2,1), filter .8s; filter: saturate(.72) brightness(.55); }
.hero-panel.is-active { width: 68%; filter: saturate(.82) brightness(.78); }
.hero-panel:not(.is-active) { width: 10.66%; }
.hero-panel img { height: 100%; object-fit: cover; transform: scale(1.06); transition: transform 1.4s cubic-bezier(.2,.7,.2,1); }
.hero-panel.is-active img { transform: scale(1); }
.hero-panel[data-hero-panel="xiamen"] img { object-position: 57% center; }
.hero-panel[data-hero-panel="tongxiang"] img { object-position: 48% center; }
.hero-panel[data-hero-panel="trina"] img { object-position: 48% center; }
.hero-panel[data-hero-panel="jieqiang"] img { object-position: 54% center; }
.hero-shade { position: absolute; inset: 0; background: linear-gradient(90deg, rgba(4,18,23,.45), rgba(4,18,23,.04) 60%, rgba(4,18,23,.2)), linear-gradient(0deg, rgba(4,18,23,.72), transparent 45%); }
.hero-project-meta { position: absolute; z-index: 2; left: clamp(24px, 4vw, 68px); right: 28px; bottom: 48px; opacity: .35; transition: opacity .7s, transform .7s; transform: translateY(12px); }
.hero-panel.is-active .hero-project-meta { opacity: 1; transform: none; }
.hero-project-meta > p:first-child { display: flex; gap: 20px; font: 10px var(--utility); letter-spacing: .15em; text-transform: uppercase; }
.hero-project-meta h2 { margin: 13px 0 8px; font: 400 clamp(25px, 3vw, 52px)/1.08 var(--serif); }
.hero-project-meta .place { margin: 0; font-size: 11px; letter-spacing: .13em; opacity: .75; }
.panel-link { position: absolute; z-index: 3; inset: 0; }
.hero-orbit { position: absolute; z-index: 3; width: min(37vw, 560px); aspect-ratio: 1; border: 1px solid rgba(255,255,255,.22); border-radius: 50%; top: 24%; left: 33%; pointer-events: none; animation: orbit 22s linear infinite; }
.hero-orbit span { position: absolute; top: 50%; left: -4px; width: 8px; height: 8px; background: var(--gold); border-radius: 50%; }
.hero-instruction { position: absolute; z-index: 4; right: var(--pad); top: 120px; display: flex; align-items: center; gap: 12px; font: 9px var(--utility); letter-spacing: .14em; text-transform: uppercase; }
.hero-instruction i { width: 42px; height: 1px; background: currentColor; }
.hero-index { position: absolute; z-index: 5; bottom: 45px; right: var(--pad); display: flex; gap: 3px; }
.hero-index button { border: 0; background: transparent; color: rgba(255,255,255,.5); cursor: pointer; display: grid; grid-template-columns: auto 28px auto; gap: 8px; align-items: center; padding: 8px; font: 8px var(--utility); letter-spacing: .1em; }
.hero-index button i { height: 1px; background: currentColor; transform: scaleX(.45); transition: transform .4s; }
.hero-index button.is-active { color: var(--white); }.hero-index button.is-active i { transform: scaleX(1); }
@keyframes orbit { to { transform: rotate(360deg); } }

.section-tag { display: grid; grid-template-columns: auto minmax(30px, 88px) auto; align-items: center; width: max-content; max-width: 100%; gap: 18px; font: 9px var(--utility); letter-spacing: .18em; }
.section-tag i { height: 1px; background: currentColor; opacity: .4; }.section-tag b { font-weight: 400; letter-spacing: .1em; }.section-tag.light { color: var(--mist); }
.manifesto { padding: clamp(110px, 15vw, 220px) var(--pad); }
.manifesto-grid { display: grid; grid-template-columns: minmax(0, 1.55fr) minmax(260px, .65fr); gap: 10vw; margin-top: 12vh; }
.manifesto-lead { margin: 0; max-width: 990px; font: 400 clamp(36px, 5.4vw, 82px)/1.17 var(--serif); letter-spacing: -.045em; }
.manifesto-lead::first-letter { color: var(--gold); }
.manifesto-body { align-self: end; border-top: 1px solid var(--line); padding-top: 24px; }
.manifesto-body > p { margin: 0 0 38px; font-size: 14px; line-height: 1.9; color: rgba(16,38,47,.72); }
.text-link, .matlook-link { display: flex; justify-content: space-between; align-items: center; border-bottom: 1px solid currentColor; padding: 0 0 12px; font-size: 12px; }
.text-link i, .matlook-link i, .all-projects i { font-style: normal; transition: transform .25s; }.text-link:hover i, .matlook-link:hover i, .all-projects:hover i { transform: translate(4px,-4px); }

.projects { background: var(--ink); color: var(--white); padding: clamp(100px, 12vw, 180px) var(--pad); }
.projects-heading { display: grid; grid-template-columns: .7fr 1.4fr .6fr; align-items: end; gap: 5vw; margin-bottom: 12vh; }
.projects-heading h2 { margin: 0; font: 400 clamp(40px, 5vw, 76px)/1.08 var(--serif); letter-spacing: -.04em; }.projects-heading > p { margin: 0; font-size: 10px; letter-spacing: .14em; opacity: .58; }
.project-list { display: grid; grid-template-columns: repeat(12, 1fr); gap: 9vw 2.2vw; align-items: start; }
.project-card figure { margin: 0; overflow: hidden; background: #273b43; }
.project-card img { height: 100%; object-fit: cover; filter: saturate(.75); transition: transform .9s cubic-bezier(.2,.7,.2,1), filter .5s; }
.project-card:hover img { transform: scale(1.025); filter: saturate(1); }
.project-caption { padding-top: 20px; display: grid; grid-template-columns: auto 1fr; gap: 5px 24px; border-top: 1px solid rgba(255,255,255,.18); margin-top: 14px; }
.project-caption span { grid-row: span 2; font: 9px var(--utility); letter-spacing: .15em; opacity: .58; }
.project-caption h3 { margin: 0; font: 400 clamp(20px, 2.1vw, 34px)/1.1 var(--serif); }.project-caption p { margin: 5px 0 0; font-size: 10px; opacity: .62; }
.card-wide { grid-column: 1 / span 8; }.card-wide figure { aspect-ratio: 16/9; }
.card-tall { grid-column: 9 / span 4; margin-top: 22vh; }.card-tall figure { aspect-ratio: 4/5; }.card-tall img { object-position: 35% center; }
.card-small { grid-column: 2 / span 4; }.card-small figure { aspect-ratio: 4/5; }
.card-medium { grid-column: 7 / span 6; margin-top: 12vh; }.card-medium figure { aspect-ratio: 3/2; }
.card-office { grid-column: 1 / span 7; margin-top: 2vh; }.card-office figure { aspect-ratio: 16/9; }
.card-commercial { grid-column: 9 / span 4; margin-top: 18vh; }.card-commercial figure { aspect-ratio: 4/5; }.card-commercial img { object-position: 54% center; }
.all-projects { width: min(430px,100%); margin: 14vh auto 0; display: flex; justify-content: space-between; border-bottom: 1px solid rgba(255,255,255,.45); padding-bottom: 16px; font: 12px var(--utility); letter-spacing: .12em; }

.expertise { padding: clamp(100px, 13vw, 190px) var(--pad); }
.expertise-layout { display: grid; grid-template-columns: .75fr 1.25fr; gap: 8vw; margin-top: 12vh; }
.expertise-title p { position: sticky; top: 120px; margin: 0; font: 400 clamp(30px, 4vw, 58px)/1.18 var(--serif); }
.expertise-list article { display: grid; grid-template-columns: 35px 1.2fr 1fr auto; gap: 28px; align-items: center; padding: 38px 0; border-top: 1px solid var(--line); transition: padding .3s, color .3s; }
.expertise-list article:last-child { border-bottom: 1px solid var(--line); }
.expertise-list article:hover { padding-left: 14px; color: #466973; }
.expertise-list span { font: italic 20px var(--serif); color: var(--gold); }.expertise-list h3 { margin: 0; font: 400 clamp(22px, 2.4vw, 38px) var(--serif); }.expertise-list p { margin: 0; font-size: 12px; line-height: 1.7; opacity: .67; }.expertise-list i { font-style: normal; }

.matlook { background: var(--mist); overflow: hidden; }
.material-ribbon { height: 18px; display: grid; grid-template-columns: repeat(8,1fr); }.material-ribbon span { background: var(--tone); }
.matlook-grid { min-height: 760px; display: grid; grid-template-columns: .65fr 1fr .55fr; gap: 6vw; padding: clamp(100px, 12vw, 170px) var(--pad); align-items: center; position: relative; }
.matlook-grid::before { content: ""; position: absolute; width: 42vw; aspect-ratio: 1; left: -18vw; top: 10%; border: 1px solid rgba(16,38,47,.13); border-radius: 50%; }
.matlook-mark { font: 600 clamp(50px, 7vw, 112px)/.72 var(--utility); letter-spacing: -.08em; position: relative; }.matlook-mark span { display: block; }.matlook-mark span:last-child { color: transparent; -webkit-text-stroke: 1px var(--ink); margin-left: .24em; }
.matlook-copy h2 { margin: 0 0 32px; font: 400 clamp(38px, 4.5vw, 68px)/1.08 var(--serif); letter-spacing: -.04em; }.matlook-copy > p:not(.eyebrow) { margin: 0 0 45px; font-size: 14px; line-height: 1.9; opacity: .73; max-width: 600px; }
.matlook-process { align-self: stretch; display: flex; flex-direction: column; justify-content: center; }
.matlook-process div { display: grid; grid-template-columns: 28px 1fr; gap: 18px; padding: 20px 0; border-top: 1px solid var(--line); }.matlook-process div:last-child { border-bottom: 1px solid var(--line); }.matlook-process span { font: 9px var(--utility); opacity: .5; }.matlook-process b { font-size: 12px; font-weight: 400; letter-spacing: .08em; }

.insights { padding: clamp(100px, 13vw, 190px) var(--pad); }
.insights-grid { display: grid; grid-template-columns: .8fr 1.2fr; gap: 9vw; margin-top: 12vh; }
.insights-head h2 { margin: 0; font: 400 clamp(35px, 4.4vw, 66px)/1.13 var(--serif); letter-spacing: -.04em; }
.insight-items a { display: grid; grid-template-columns: 80px 1fr auto; gap: 25px; align-items: start; padding: 30px 0; border-top: 1px solid var(--line); }.insight-items a:last-child { border-bottom: 1px solid var(--line); }.insight-items time { font: 9px var(--utility); letter-spacing: .12em; opacity: .55; }.insight-items h3 { margin: 0; font: 400 clamp(18px,2vw,28px)/1.45 var(--serif); }.insight-items i { font-style: normal; transition: transform .25s; }.insight-items a:hover i { transform: translate(4px,-4px); }

.contact { min-height: 82vh; background: var(--ink-deep); color: var(--white); display: flex; flex-direction: column; justify-content: center; align-items: center; text-align: center; padding: 100px var(--pad); position: relative; overflow: hidden; }
.contact::before { content: ""; position: absolute; width: min(55vw,750px); aspect-ratio: 1; border: 1px solid rgba(255,255,255,.15); border-radius: 50%; }
.contact h2 { position: relative; margin: 0 0 55px; font: 400 clamp(50px, 7vw, 106px)/.98 var(--serif); letter-spacing: -.055em; }.contact .eyebrow { position: relative; color: var(--gold); }.contact-button { position: relative; width: min(390px, 90%); display: flex; justify-content: space-between; border: 0; border-bottom: 1px solid rgba(255,255,255,.55); background: transparent; color: inherit; padding: 0 0 15px; font-size: 13px; cursor: pointer; }.contact-button i { font-style: normal; }.contact-note { position: relative; margin: 14px 0 0; font-size: 9px; letter-spacing: .08em; color: rgba(255,255,255,.42); }
.site-footer { min-height: 132px; background: var(--ink-deep); color: rgba(255,255,255,.7); border-top: 1px solid rgba(255,255,255,.18); padding: 38px var(--pad); display: grid; grid-template-columns: minmax(210px,1.35fr) minmax(210px,1.25fr) .55fr .65fr auto; gap: clamp(24px,3vw,56px); align-items: center; font-size: 10px; line-height: 1.4; }
.footer-brand { display: flex; align-items: center; gap: 13px; }.footer-brand > img { width: 92px; height: 30px; object-fit: contain; filter: brightness(0) invert(1); }.footer-brand span { min-height: 31px; border-left: 1px solid rgba(255,255,255,.35); padding-left: 13px; display: flex; flex-direction: column; justify-content: center; gap: 3px; }.footer-brand b { font-size: 12.5px; line-height: 1; letter-spacing: .065em; transform: translateY(2px); }.footer-brand i { font: 600 9px/1 var(--utility); letter-spacing: .135em; }
.footer-company { min-height: 31px; display: flex; flex-direction: column; justify-content: center; gap: 5px; }.footer-company p { margin: 0; line-height: 1; white-space: nowrap; }.footer-company p:first-child { color: rgba(255,255,255,.82); }.footer-company p:last-child { color: rgba(255,255,255,.45); }
.footer-link { min-height: 31px; display: flex; align-items: center; width: max-content; white-space: nowrap; letter-spacing: .06em; transition: color .25s; }.footer-link:hover { color: var(--white); }.copyright { min-height: 31px; margin: 0; display: flex; align-items: center; gap: .55em; white-space: nowrap; }.copyright a { transition: color .25s; }.copyright a:hover { color: var(--white); }

.reveal { opacity: 0; transform: translateY(28px); transition: opacity .8s ease, transform .8s cubic-bezier(.2,.7,.2,1); }.reveal.is-visible { opacity: 1; transform: none; }
:focus-visible { outline: 2px solid var(--gold); outline-offset: 5px; }

@media (max-width: 980px) {
  .site-header { grid-template-columns: 1fr 1fr; }.desktop-nav, .contact-link { display: none; }.menu-button { display: block; }
  .hero-intro { width: 75vw; top: 17vh; }.hero h1 { font-size: clamp(56px,11vw,92px); }.hero-copy { margin-left: 0; width: 58vw; }
  .hero-stage { top: 0; }.hero-panel.is-active { width: 76%; }.hero-panel:not(.is-active) { width: 8%; }.hero-project-meta { bottom: 100px; }.hero-index { left: var(--pad); right: auto; bottom: 30px; }.hero-orbit { width: 48vw; left: 40%; top: 31%; }
  .manifesto-grid, .expertise-layout, .insights-grid { grid-template-columns: 1fr; }.manifesto-body { width: 55%; margin-left: auto; }.expertise-title p { position: static; }.projects-heading { grid-template-columns: 1fr 1fr; }.projects-heading .section-tag { grid-column: span 2; }.projects-heading > p { display: none; }
  .matlook-grid { grid-template-columns: .6fr 1.4fr; }.matlook-process { grid-column: 2; display: grid; grid-template-columns: repeat(2,1fr); }.matlook-process div:nth-child(2) { border-top: 1px solid var(--line); }
}

@media (max-width: 680px) {
  .site-header { height: 66px; }.brand-name { display: none; }.header-actions { gap: 12px; }
  .brand { gap: 9px; }.group-logo { width: 74px; height: 24px; }.brand-division { min-height: 27px; padding-left: 10px; gap: 3px; }.brand-division b { font-size: 10.5px; letter-spacing: .05em; }.brand-division i { font-size: 7.8px; letter-spacing: .11em; }
  .hero { min-height: 920px; }.hero-intro { top: 125px; width: calc(100% - var(--pad)*2); }.hero h1 { font-size: clamp(52px,16vw,82px); }.hero h1 em { margin-left: 0; }.hero-copy { width: 88%; margin-top: 25px; }
  .hero-stage { top: 390px; height: 530px; }.hero-panel.is-active { width: 85%; }.hero-panel:not(.is-active) { width: 5%; }.hero-project-meta { left: 20px; bottom: 92px; }.hero-panel:not(.is-active) .hero-project-meta { display: none; }.hero-index { left: 14px; right: 14px; bottom: 12px; gap: 0; justify-content: space-between; }.hero-index button { grid-template-columns: auto; gap: 2px; padding: 5px; }.hero-index button i { display: none; }.hero-index button b { font-size: 7px; }.hero-instruction, .hero-orbit { display: none; }
  .manifesto-grid { gap: 60px; margin-top: 75px; }.manifesto-body { width: 100%; }.manifesto-lead { font-size: 38px; }
  .projects-heading { display: block; }.projects-heading h2 { margin-top: 70px; }.project-list { display: block; }.project-card { display: block; margin: 0 0 80px; }.project-card figure { aspect-ratio: 4/3; }.project-caption { grid-template-columns: 1fr; }.project-caption span { grid-row: auto; }.project-caption h3 { font-size: 25px; }.card-tall img { object-position: center; }
  .expertise-layout { margin-top: 75px; }.expertise-list article { grid-template-columns: 28px 1fr auto; gap: 14px; }.expertise-list article p { grid-column: 2 / -1; }.expertise-title p { font-size: 38px; }
  .matlook-grid { display: block; min-height: auto; }.matlook-mark { margin-bottom: 80px; }.matlook-copy h2 { font-size: 42px; }.matlook-process { display: grid; grid-template-columns: 1fr 1fr; margin-top: 80px; }
  .insights-grid { margin-top: 70px; }.insight-items { margin-top: 40px; }.insight-items a { grid-template-columns: 55px 1fr auto; gap: 12px; }.contact { min-height: 680px; }.contact h2 { font-size: 54px; }
  .site-footer { min-height: 0; grid-template-columns: 1fr 1fr; gap: 26px 20px; padding-top: 42px; padding-bottom: 34px; align-items: center; }.footer-brand, .footer-company { grid-column: span 2; }.footer-company { padding-top: 22px; border-top: 1px solid rgba(255,255,255,.14); }.footer-link { min-height: 28px; }.copyright { grid-column: span 2; min-height: 28px; padding-top: 22px; border-top: 1px solid rgba(255,255,255,.14); }
}

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