:root{
  --ink:#0c0d0f;
  --paper:#f4f2ec;
  --muted:#6b6a64;
  --line:#dcd8cf;
  --card:#fff;
  --hero:#07080a;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--paper);color:var(--ink);font-family:'Instrument Sans','Noto Sans SC',sans-serif;letter-spacing:-.01em}
a{color:inherit;text-decoration:none}
img,video{display:block;max-width:100%}
nav{height:76px;padding:0 5vw;display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid var(--line);position:relative;z-index:10;background:var(--paper)}
.brand{font:500 13px/1 'IBM Plex Mono','Noto Sans SC',sans-serif;letter-spacing:.18em}
html[lang="zh-CN"] .brand{letter-spacing:.12em}
.nav-links{display:flex;gap:32px;font-size:13px;color:#5c5b56}
.nav-links a:hover,.nav-cta:hover,.text-link:hover{color:var(--ink)}
.nav-actions{display:flex;align-items:center;gap:22px}
.language{font:11px 'IBM Plex Mono',monospace;letter-spacing:.12em;color:#8a8880;display:flex;align-items:center}
.language button{font:inherit;letter-spacing:inherit;border:0;background:none;padding:0;color:inherit;cursor:pointer}
.language button.active{color:var(--ink)}
.slash{padding:0 6px;color:#c5c1b6}
.nav-cta{font-size:12px;font-weight:500;border-bottom:1px solid var(--ink);padding-bottom:3px}
.menu{display:none;border:0;background:none;padding:5px}
.menu span{display:block;width:22px;height:1px;background:var(--ink);margin:5px}
.hero{position:relative;min-height:100vh;background:var(--hero);color:#eceae4;display:flex;align-items:flex-end}
.hero-media{position:absolute;inset:0;overflow:hidden}
.hero-video,.hero-still{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.hero-still{z-index:0}
.hero-video{z-index:1}
.hero-shade{position:absolute;inset:0;z-index:2;background:linear-gradient(180deg,rgba(7,8,10,.18) 0%,rgba(7,8,10,.35) 46%,rgba(7,8,10,.88) 100%)}
.hero-copy{position:relative;z-index:3;padding:0 5vw 9vh;max-width:820px}
.eyebrow,.kicker{font:11px 'IBM Plex Mono',monospace;letter-spacing:.16em;text-transform:uppercase;color:#8d8b84}
.eyebrow{color:#b7b4ab;margin:0 0 22px}
.hero h1{font:500 clamp(40px,5.6vw,78px)/1.02 'Instrument Sans','Noto Sans SC',sans-serif;letter-spacing:-.045em;margin:0 0 22px;color:#f6f4ee}
.hero-intro{max-width:520px;font-size:16px;line-height:1.7;color:#c6c3ba;margin:0}
.hero-actions{display:flex;align-items:center;gap:28px;margin-top:36px}
.button{display:inline-flex;align-items:center;padding:13px 18px;font-size:12px;font-weight:500;border:1px solid transparent;background:#eceae4;color:var(--ink);transition:.2s}
.button:hover{background:#fff}
.button-light{background:var(--ink);color:#eceae4}
.button-light:hover{background:#1c1d20}
.text-link{font-size:12px;border-bottom:1px solid currentColor;padding-bottom:3px;color:#eceae4}
.signal{padding:18px 5vw;display:flex;justify-content:space-between;align-items:center;font-size:12px;color:var(--muted);border-bottom:1px solid var(--line);background:var(--paper)}
.signal p{margin:0}
.signal-list{display:flex;gap:28px;font:11px 'IBM Plex Mono',monospace;color:var(--ink);letter-spacing:.08em;text-transform:uppercase}
.section{padding:120px 5vw}
.section-intro{display:grid;grid-template-columns:1fr 1.4fr .9fr;gap:24px;align-items:end;margin-bottom:56px}
.section h2,.work h2,.contact h2{font:500 clamp(34px,4.4vw,58px)/1.05 'Instrument Sans','Noto Sans SC',sans-serif;letter-spacing:-.04em;margin:0}
.section-lede,.work-note{font-size:14px;line-height:1.7;color:var(--muted);max-width:280px;margin:0}
.capability-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:1px;background:var(--line);border:1px solid var(--line)}
.capability-card{padding:28px 26px 32px;background:var(--paper);min-height:260px;display:flex;flex-direction:column}
.capability-card:hover{background:var(--card)}
.card-number{font:11px 'IBM Plex Mono',monospace;color:#8a8880}
.capability-card h3{font:500 22px/1.2 'Instrument Sans','Noto Sans SC',sans-serif;letter-spacing:-.03em;margin:48px 0 14px}
.capability-card p{font-size:13px;line-height:1.65;color:#5f5e58;margin:0}
.work{background:#eceae3}
.work-head{display:grid;grid-template-columns:1fr 1fr;align-items:end;margin-bottom:48px}
.projects{display:grid;grid-template-columns:1.2fr 1fr;gap:40px 20px}
.project-large{grid-row:span 2}
.project-visual{position:relative;overflow:hidden;background:#111;aspect-ratio:16/10}
.project-large .project-visual{aspect-ratio:4/5;min-height:520px}
.project-photo{width:100%;height:100%;object-fit:cover;filter:grayscale(.18) contrast(1.04);transition:transform .6s ease,filter .6s ease}
.project:hover .project-photo{transform:scale(1.03);filter:grayscale(0) contrast(1.06)}
.project-meta{display:flex;justify-content:space-between;padding-top:16px;gap:16px}
.project-type{font:10px 'IBM Plex Mono',monospace;text-transform:uppercase;letter-spacing:.12em;color:#7a7871;margin:0 0 8px}
.project h3{font:20px/1.2 'Instrument Sans','Noto Sans SC',sans-serif;margin:0 0 8px;font-weight:500}
.project-meta p:last-child{font-size:13px;color:#6a6963;margin:0;max-width:340px;line-height:1.55}
.project-index{font:12px 'IBM Plex Mono',monospace;color:#8a8880}
.domain{padding-top:0}
.domain-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:1px;background:var(--line);border:1px solid var(--line)}
.domain-grid article{background:var(--paper);padding:28px 26px 32px;min-height:210px}
.domain-grid span{font:11px 'IBM Plex Mono',monospace;color:#8a8880}
.domain-grid h3{font:500 20px/1.25 'Instrument Sans','Noto Sans SC',sans-serif;margin:36px 0 12px}
.domain-grid p{font-size:13px;line-height:1.65;color:#5f5e58;margin:0}
.process{display:grid;grid-template-columns:.9fr 1.4fr;gap:8%;padding-bottom:130px}
.process-list{border-top:1px solid var(--line)}
.process-row{display:grid;grid-template-columns:48px 1.1fr 1.2fr;gap:20px;padding:28px 0;border-bottom:1px solid var(--line);align-items:start}
.process-row>span{font:11px 'IBM Plex Mono',monospace;color:#8a8880}
.process-row h3{font:18px/1.3 'Instrument Sans','Noto Sans SC',sans-serif;margin:0;font-weight:500}
.process-row p{font-size:13px;line-height:1.65;color:var(--muted);margin:0}
.contact{padding:110px 5vw 120px;background:var(--ink);color:#eceae4;display:grid;grid-template-columns:1.3fr 1fr;gap:8%}
.contact .kicker{color:#8d8b84}
.contact h2{margin:28px 0 22px;max-width:640px}
.contact-copy{max-width:440px;line-height:1.7;font-size:15px;color:#b7b4ab}
.contact-side{padding-top:70px}
.contact-channels{display:flex;flex-direction:column;gap:10px;margin-bottom:22px}
.channel{display:flex;align-items:center;justify-content:space-between;gap:16px;border:1px solid #2a2b2e;padding:14px 16px;color:#eceae4;min-height:52px}
.channel:hover{border-color:#eceae4}
.channel b{font-size:12px;font-weight:500;letter-spacing:.08em;text-transform:uppercase;font-family:'IBM Plex Mono',monospace}
.channel span{font-size:12px;color:#9b988f}
.wecom-card{display:grid;grid-template-columns:auto 1fr;gap:14px;align-items:center}
.wecom-card img{width:88px;height:88px;object-fit:cover;background:#111}
.contact-detail{font-size:13px;line-height:1.65;max-width:360px;margin:8px 0 36px;color:#9b988f}
.brief-button{font:11px 'IBM Plex Mono',monospace;background:none;border:0;border-bottom:1px solid #eceae4;padding:0 0 6px;cursor:pointer;color:#eceae4}
footer{padding:24px 5vw;display:grid;grid-template-columns:1.1fr 1.6fr 1fr auto;align-items:center;background:var(--ink);color:#9b988f;font-size:11px;border-top:1px solid #1d1e21}
footer .brand{color:#eceae4}
footer p{margin:0}
footer>a:last-child{text-align:right;color:#9b988f}
dialog{border:0;width:min(520px,92vw);padding:0;background:var(--paper);color:var(--ink);box-shadow:0 24px 80px rgba(7,8,10,.35)}
dialog::backdrop{background:rgba(7,8,10,.72)}
#brief-form{padding:34px}
.dialog-head{display:flex;justify-content:space-between}
.dialog-head h2{font:500 32px 'Instrument Sans',sans-serif;letter-spacing:-.04em;margin:16px 0}
.dialog-head button{border:0;background:none;font-size:28px;cursor:pointer;line-height:1}
.dialog-copy{font-size:13px;color:var(--muted);line-height:1.6}
#brief-form label{display:block;font:11px 'IBM Plex Mono',monospace;margin-top:20px;text-transform:uppercase;letter-spacing:.08em}
#brief-form input,#brief-form select,#brief-form textarea{display:block;width:100%;margin-top:8px;border:1px solid #cfcbc2;padding:12px;background:#fff;font:13px 'Instrument Sans',sans-serif;color:var(--ink)}
#brief-form .button{margin-top:22px;cursor:pointer}
#brief-status{font-size:12px;color:#6b6a64;min-height:16px}
@media(max-width:900px){
  .hero{min-height:92vh}
  .signal{display:block}
  .signal-list{margin-top:14px;gap:16px;flex-wrap:wrap}
  .section-intro{grid-template-columns:1fr 1.5fr}
  .section-lede{grid-column:2}
  .capability-grid,.domain-grid{grid-template-columns:repeat(2,1fr)}
  .project-large .project-visual{min-height:0;aspect-ratio:4/5}
  .process{grid-template-columns:1fr;gap:40px}
  .contact{grid-template-columns:1fr}
  .contact-side{padding-top:0}
  footer{grid-template-columns:1fr 1fr;gap:16px}
  footer>a:last-child{text-align:left}
}
@media(max-width:620px){
  nav{height:64px}
  .nav-links{display:none;position:absolute;top:64px;left:0;right:0;padding:22px 5vw;background:var(--paper);border-bottom:1px solid var(--line);flex-direction:column;gap:18px}
  .nav-links.open{display:flex}
  .nav-cta{display:none}
  .menu{display:block}
  .hero-copy{padding:0 5vw 8vh}
  .hero h1{font-size:38px}
  .section{padding:80px 5vw}
  .section-intro,.work-head{display:block;margin-bottom:36px}
  .section-lede,.work-note{margin-top:18px}
  .capability-grid,.domain-grid{grid-template-columns:1fr}
  .capability-card{min-height:220px}
  .capability-card h3{margin-top:36px}
  .projects{display:block}
  .project{margin-bottom:36px}
  .process-row{grid-template-columns:32px 1fr;gap:10px}
  .process-row p{grid-column:2}
  .contact{padding:80px 5vw}
  .contact h2{font-size:36px}
  footer{display:flex;flex-direction:column;align-items:flex-start;gap:12px}
}