:root {
  --ink: #101410;
  --paper: #f3f1eb;
  --white: #fffdf8;
  --acid: #c8f43d;
  --muted: #686d66;
  --line: rgba(16, 20, 16, .16);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: Inter, "Noto Sans SC", "PingFang SC", "Microsoft YaHei", Arial, sans-serif;
  line-height: 1.6;
  overflow-x: hidden;
  text-rendering: optimizeLegibility;
}
a { color: inherit; text-decoration: none; }
.skipLink {
  position: fixed; z-index: 100; top: 12px; left: 12px; padding: 10px 14px;
  color: var(--ink); background: var(--acid); border-radius: 6px; font-weight: 750;
  transform: translateY(-160%); transition: transform .2s ease;
}
.skipLink:focus { transform: translateY(0); }
a:focus-visible, summary:focus-visible { outline: 3px solid var(--acid); outline-offset: 4px; }

.nav {
  position: absolute;
  z-index: 10;
  top: 0;
  left: 0;
  width: 100%;
  min-height: 82px;
  padding: 0 5vw;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid rgba(255,255,255,.16);
  color: white;
}
.brand { display: flex; align-items: center; gap: 12px; letter-spacing: -.02em; }
.brand span {
  display: grid; place-items: center; width: 36px; height: 36px;
  border: 1px solid rgba(255,255,255,.55); border-radius: 50%; font-size: 12px; font-weight: 800;
}
.brand strong { font-size: 15px; }
.navLinks { display: flex; gap: 32px; font-size: 14px; }
.navLinks a, .contactLink { transition: opacity .2s ease; }
.navLinks a:hover, .contactLink:hover { opacity: .65; }
.contactLink {
  padding: 9px 15px; border: 1px solid rgba(255,255,255,.4);
  border-radius: 100px; font-size: 13px;
}
.navActions { display: flex; align-items: center; gap: 14px; }
.langLink { font-size: 12px; font-weight: 750; letter-spacing: .08em; }
.mobileNav { display: none; position: relative; }
.mobileNav summary {
  list-style: none; cursor: pointer; padding: 8px 11px; border: 1px solid rgba(255,255,255,.4);
  border-radius: 100px; font-size: 12px; font-weight: 750; letter-spacing: .05em;
}
.mobileNav summary::-webkit-details-marker { display: none; }
.mobileNavPanel {
  position: absolute; top: calc(100% + 18px); right: -88px; width: min(78vw, 280px);
  display: grid; padding: 10px; color: #fff; background: rgba(8,10,8,.97);
  border: 1px solid rgba(255,255,255,.18); border-radius: 14px;
  box-shadow: 0 18px 45px rgba(0,0,0,.38);
}
.mobileNavPanel a { padding: 11px 13px; border-radius: 8px; font-size: 14px; }
.mobileNavPanel a:hover { color: var(--ink); background: var(--acid); }

.hero {
  position: relative;
  min-height: 760px;
  padding: 175px 8vw 100px;
  overflow: hidden;
  color: #fff;
  background:
    radial-gradient(circle at 76% 62%, rgba(200,244,61,.17), transparent 26%),
    linear-gradient(135deg, #171d17 0%, #0a0d0b 70%);
}
.heroGlow {
  position: absolute; width: 560px; height: 560px; right: -170px; top: 80px;
  border: 1px solid rgba(200,244,61,.3); border-radius: 50%;
  box-shadow: 0 0 0 110px rgba(200,244,61,.025), 0 0 0 220px rgba(200,244,61,.02);
}
.eyebrow { display: flex; align-items: center; gap: 10px; font-size: 12px; letter-spacing: .14em; text-transform: uppercase; color: #c9cec9; }
.eyebrow i { width: 7px; height: 7px; border-radius: 50%; background: var(--acid); box-shadow: 0 0 18px var(--acid); }
.hero h1 {
  position: relative; max-width: min(920px, calc(100% - 340px)); margin: 28px 0 24px;
  font-size: clamp(58px, 8vw, 116px); line-height: .95; letter-spacing: -.065em; font-weight: 670;
}
.hero h1 span { color: var(--acid); }
.hero h1.englishHero { max-width: min(1050px, calc(100% - 320px)); font-size: clamp(58px, 7.1vw, 106px); }
.heroLead { position: relative; max-width: 660px; margin: 0; color: #c9cec9; font-size: clamp(17px, 2vw, 21px); }
.heroActions { position: relative; display: flex; align-items: center; flex-wrap: wrap; gap: 24px; margin-top: 42px; }
.primaryButton { padding: 14px 22px; background: var(--acid); color: var(--ink); border-radius: 100px; font-weight: 700; }
.primaryButton span { margin-left: 18px; }
.textButton { font-size: 14px; border-bottom: 1px solid rgba(255,255,255,.35); }
.textButton span { color: var(--acid); }
.heroPortrait {
  position: absolute;
  z-index: 2;
  top: 150px;
  right: 7vw;
  width: clamp(210px, 19vw, 292px);
  margin: 0;
}
.portraitFrame {
  position: relative;
  overflow: hidden;
  aspect-ratio: 293 / 413;
  background: #252b26;
  border: 1px solid rgba(255,255,255,.22);
  border-radius: 150px 150px 22px 22px;
  box-shadow: 0 28px 70px rgba(0,0,0,.38);
}
.portraitFrame::after {
  position: absolute;
  inset: 0;
  content: "";
  border: 1px solid rgba(200,244,61,.22);
  border-radius: inherit;
  pointer-events: none;
}
.portraitFrame img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: saturate(.88) contrast(1.04);
}
.heroPortrait figcaption {
  margin-top: 12px;
  color: #9fa69f;
  font-size: 10px;
  letter-spacing: .11em;
  text-align: center;
  text-transform: uppercase;
}
.monogram {
  position: absolute; right: 7vw; bottom: 66px; color: rgba(255,255,255,.035);
  font-size: 250px; font-weight: 900; letter-spacing: -.11em; line-height: 1;
}

.metrics {
  position: relative; z-index: 2; width: min(1120px, 90vw); margin: -42px auto 0;
  display: grid; grid-template-columns: repeat(4, 1fr); background: var(--white);
  box-shadow: 0 22px 65px rgba(10,15,10,.1);
}
.metrics div { padding: 30px 34px; border-right: 1px solid var(--line); }
.metrics div:last-child { border: 0; }
.metrics strong { display: block; font-size: 32px; line-height: 1.1; letter-spacing: -.04em; }
.metrics span { display: block; margin-top: 8px; color: var(--muted); font-size: 12px; }

.section { display: grid; grid-template-columns: 180px 1fr; gap: 5vw; padding: 130px max(5vw, calc((100vw - 1220px) / 2)); }
.sectionLabel { padding-top: 9px; color: var(--muted); font-size: 11px; letter-spacing: .13em; text-transform: uppercase; }
.section h2 { margin: 0; font-size: clamp(38px, 5vw, 70px); line-height: 1.08; letter-spacing: -.055em; font-weight: 620; }
.twoCol { display: grid; grid-template-columns: .95fr 1fr; gap: 8vw; }
.twoCol p { color: var(--muted); }
.twoCol .largeCopy { margin: 0 0 24px; color: var(--ink); font-size: 23px; line-height: 1.55; }

.darkSection { color: #fff; background: var(--ink); }
.darkSection .sectionLabel, .darkSection p { color: #9ba19a; }
.expertiseHeader { display: flex; align-items: end; justify-content: space-between; gap: 50px; margin-bottom: 70px; }
.expertiseHeader p { max-width: 390px; margin: 0; }
.expertiseList { border-top: 1px solid rgba(255,255,255,.18); }
.expertiseItem {
  display: grid; grid-template-columns: 70px 1fr 1fr; align-items: center;
  min-height: 115px; border-bottom: 1px solid rgba(255,255,255,.18);
}
.expertiseItem span { color: var(--acid); font-size: 11px; }
.expertiseItem h3 { margin: 0; font-size: clamp(23px, 2.5vw, 34px); letter-spacing: -.035em; }
.expertiseItem p { margin: 0; }

.timeline { margin-top: 80px; border-top: 1px solid var(--line); }
.role { display: grid; grid-template-columns: 30% 1fr; gap: 7%; padding: 50px 0; border-bottom: 1px solid var(--line); }
.roleMeta span { font-size: 13px; color: var(--muted); }
.roleMeta p { margin: 10px 0 0; font-weight: 700; }
.roleBody h3 { margin: 0; font-size: 31px; line-height: 1.2; letter-spacing: -.035em; }
.roleSummary { margin: 14px 0 22px; font-size: 18px; }
.roleBody ul { margin: 0; padding: 0; list-style: none; color: var(--muted); }
.roleBody li { padding: 7px 0 7px 20px; position: relative; }
.roleBody li::before { content: "—"; position: absolute; left: 0; color: var(--ink); }

.knowledge { background: var(--white); }
.knowledgeHeader {
  display: grid; grid-template-columns: 1fr .72fr; align-items: end;
  gap: 8vw; margin-bottom: 60px;
}
.knowledgeHeader > p { margin: 0 0 8px; color: var(--muted); font-size: 18px; }
.kicker { margin: 0 0 16px; color: #657d1c; font-size: 11px; font-weight: 750; letter-spacing: .14em; text-transform: uppercase; }
.insightGrid { display: grid; grid-template-columns: repeat(3, 1fr); border-top: 1px solid var(--line); border-left: 1px solid var(--line); }
.insightCard {
  min-height: 240px; padding: 25px; display: flex; flex-direction: column;
  border-right: 1px solid var(--line); border-bottom: 1px solid var(--line);
  transition: background .2s ease, transform .2s ease;
}
.insightCard:hover { background: var(--acid); transform: translateY(-3px); }
.insightCard > div { display: flex; justify-content: space-between; color: var(--muted); font-size: 11px; }
.insightCard > div b { color: var(--ink); }
.insightCard h3 { margin: auto 0 12px; font-size: 23px; line-height: 1.3; letter-spacing: -.035em; }
.insightCard p { margin: 0; color: var(--muted); font-size: 11px; text-transform: uppercase; letter-spacing: .08em; }
.projectBlock { margin-top: 85px; }
.projectTitle { display: flex; justify-content: space-between; padding-bottom: 16px; border-bottom: 1px solid var(--ink); font-size: 11px; letter-spacing: .1em; }
.projectTitle a { font-weight: 700; letter-spacing: 0; }
.projectList > a {
  display: grid; grid-template-columns: 55px 1fr 1.3fr 30px; align-items: center;
  min-height: 105px; border-bottom: 1px solid var(--line);
}
.projectList span { color: var(--muted); font-size: 11px; }
.projectList h3 { margin: 0; font-size: 25px; letter-spacing: -.03em; }
.projectList p { margin: 0; color: var(--muted); }
.projectList b { justify-self: end; }

.recognition { background: #e5e3db; }
.recognitionGrid { display: grid; grid-template-columns: .85fr 1fr; gap: 8vw; }
.recognitionGrid > div > p { max-width: 500px; color: var(--muted); }
.recognitionCards { border-top: 1px solid var(--line); }
.recognitionCards article { padding: 28px 0; border-bottom: 1px solid var(--line); }
.recognitionCards span { color: var(--muted); font-size: 11px; text-transform: uppercase; letter-spacing: .12em; }
.recognitionCards h3 { margin: 7px 0; font-size: 24px; }
.recognitionCards p { margin: 0; color: var(--muted); }

footer { padding: 90px max(5vw, calc((100vw - 1220px) / 2)) 30px; color: #fff; background: #080a08; }
.footerLead { max-width: 900px; margin: 0 0 18px; font-size: clamp(48px, 7vw, 100px); line-height: 1; letter-spacing: -.06em; }
footer > a { display: inline-block; margin-top: 24px; color: var(--acid); font-size: clamp(20px, 3vw, 35px); border-bottom: 1px solid rgba(200,244,61,.4); }
.footerBottom { display: flex; justify-content: space-between; margin-top: 100px; padding-top: 22px; border-top: 1px solid rgba(255,255,255,.15); color: #878d87; font-size: 12px; }

@media (max-width: 1100px) and (min-width: 801px) {
  .hero { padding-left: 6vw; }
  .hero h1, .hero h1.englishHero { font-size: clamp(58px, 7.3vw, 82px); }
  .heroPortrait { width: clamp(205px, 22vw, 245px); right: 4vw; }
}

@media (max-width: 800px) {
  .nav { min-height: 70px; padding: 0 4vw; gap: 9px; }
  .navLinks { display: none; }
  .brand strong { display: none; }
  .mobileNav { display: block; margin-left: auto; }
  .navActions { gap: 8px; }
  .contactLink { padding: 8px 12px; }
  .hero { min-height: 700px; padding: 145px 6vw 80px; }
  .hero h1,
  .hero h1.englishHero { max-width: none; font-size: clamp(52px, 15vw, 78px); }
  .heroPortrait {
    position: relative;
    top: auto;
    right: auto;
    width: min(230px, 64vw);
    margin: 54px auto 0;
  }
  .monogram { right: -30px; font-size: 150px; }
  .metrics { grid-template-columns: repeat(2, 1fr); }
  .metrics div { padding: 24px; }
  .metrics div:nth-child(2) { border-right: 0; }
  .metrics div:nth-child(-n+2) { border-bottom: 1px solid var(--line); }
  .section { grid-template-columns: 1fr; padding: 90px 6vw; }
  .twoCol, .recognitionGrid { grid-template-columns: 1fr; gap: 40px; }
  .expertiseHeader { display: block; }
  .expertiseHeader p { margin-top: 25px; }
  .expertiseItem { grid-template-columns: 35px 1fr; padding: 22px 0; }
  .expertiseItem p { grid-column: 2; margin-top: 6px; }
  .role { grid-template-columns: 1fr; gap: 24px; }
  .knowledgeHeader { grid-template-columns: 1fr; gap: 30px; }
  .insightGrid { grid-template-columns: 1fr; }
  .insightCard { min-height: 190px; }
  .projectList > a { grid-template-columns: 35px 1fr 25px; padding: 22px 0; }
  .projectList p { grid-column: 2; margin-top: 5px; }
  .projectList b { grid-column: 3; grid-row: 1 / span 2; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { scroll-behavior: auto !important; transition-duration: .01ms !important; animation-duration: .01ms !important; }
}