:root {
  --paper: #f5f6f2;
  --ink: #101817;
  --muted: #5b6865;
  --line: #cfd8d2;
  --lime: #c8f35a;
  --coral: #ef806d;
  --blue: #3969e8;
  --wash: #e8ede7;
  --max: 1220px;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; color: var(--ink); background: var(--paper); font-family: Inter, "Noto Sans SC", "Microsoft YaHei", Arial, sans-serif; line-height: 1.55; }
a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; }
.container { width: min(var(--max), calc(100% - 48px)); margin: 0 auto; }
.site-header { position: sticky; top: 0; z-index: 20; background: rgba(245,246,242,.94); border-bottom: 1px solid var(--line); backdrop-filter: blur(10px); }
.nav { height: 72px; display: flex; align-items: center; justify-content: space-between; gap: 28px; }
.brand { display: inline-flex; align-items: center; gap: 10px; font-weight: 800; letter-spacing: .02em; }
.brand-logo { display: block; width: 116px; height: 44px; object-fit: contain; object-position: left center; }
.brand-mark { width: 24px; height: 24px; background: var(--lime); border: 1px solid var(--ink); display: grid; place-items: center; font-size: 11px; }
.nav-links { display: flex; gap: 25px; align-items: center; font-size: 13px; color: var(--muted); }
.nav-links a:hover, .nav-links a[aria-current="page"] { color: var(--ink); }
.nav-cta { border: 1px solid var(--ink); padding: 9px 15px; font-size: 12px; color: var(--ink); }
.menu { display: none; background: none; border: 0; padding: 8px; font-size: 21px; }
.eyebrow { text-transform: uppercase; letter-spacing: .12em; font-size: 11px; color: var(--coral); font-weight: 700; }
h1, h2, h3, p { margin-top: 0; }
h1 { font-size: clamp(45px, 7vw, 86px); line-height: .98; letter-spacing: -.04em; margin-bottom: 27px; max-width: 820px; }
h2 { font-size: clamp(30px, 4vw, 52px); line-height: 1.05; letter-spacing: -.03em; margin-bottom: 18px; }
h3 { font-size: 21px; line-height: 1.15; margin-bottom: 10px; }
.lead { color: var(--muted); font-size: 18px; max-width: 620px; }
.btn { display: inline-flex; align-items: center; gap: 12px; padding: 13px 18px; border: 1px solid var(--ink); font-size: 13px; font-weight: 700; transition: transform .2s, background .2s; }
.btn:hover { transform: translateY(-2px); background: var(--lime); }
.btn-primary { background: var(--ink); color: var(--paper); }
.btn-primary:hover { color: var(--ink); }
.hero { padding: 92px 0 80px; border-bottom: 1px solid var(--line); }
.hero-grid { display: grid; grid-template-columns: 1.05fr .95fr; gap: 60px; align-items: end; }
.hero-copy .kicker { display: inline-flex; align-items: center; gap: 8px; margin-bottom: 24px; font-size: 12px; color: var(--muted); }
.kicker i { width: 7px; height: 7px; background: var(--lime); border: 1px solid var(--ink); display: inline-block; }
.hero-actions { display: flex; gap: 12px; flex-wrap: wrap; margin-top: 30px; }
.hero-art { min-height: 355px; background: var(--ink); position: relative; overflow: hidden; border: 1px solid var(--ink); }
.hero-art img { width: 100%; height: 100%; min-height: 355px; object-fit: cover; opacity: .86; }
.hero-art::after { content: "RESEARCH / DATA / ENVIRONMENTS"; position: absolute; bottom: 15px; left: 17px; color: var(--lime); font-size: 10px; letter-spacing: .12em; }
.section { padding: 105px 0; border-bottom: 1px solid var(--line); }
.section-head { display: flex; justify-content: space-between; gap: 30px; align-items: end; margin-bottom: 42px; }
.section-head p { max-width: 430px; color: var(--muted); margin-bottom: 0; }
.showcase-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; }
.showcase { border: 1px solid var(--line); background: var(--paper); min-width: 0; transition: border-color .2s, transform .2s; }
.showcase:hover { border-color: var(--ink); transform: translateY(-4px); }
.showcase-media { aspect-ratio: 1.45; overflow: hidden; background: var(--wash); border-bottom: 1px solid var(--line); }
.showcase-media img { width: 100%; height: 100%; object-fit: cover; }
.showcase-body { padding: 20px; }
.tag { color: var(--coral); text-transform: uppercase; letter-spacing: .09em; font-size: 11px; font-weight: 700; }
.showcase h3 { margin: 9px 0 8px; }
.showcase p { color: var(--muted); font-size: 14px; min-height: 45px; }
.text-link { display: inline-flex; gap: 8px; align-items: center; font-size: 12px; font-weight: 700; }
.text-link span { color: var(--blue); font-size: 17px; }
.pipeline { display: grid; grid-template-columns: 1.1fr 1fr; gap: 70px; align-items: start; }
.pipeline-steps { border-top: 1px solid var(--ink); }
.step { display: grid; grid-template-columns: 50px 1fr; gap: 16px; padding: 21px 0; border-bottom: 1px solid var(--line); }
.step-no { color: var(--coral); font-size: 13px; font-weight: 700; }
.step p { color: var(--muted); font-size: 14px; margin: 0; }
.deliveries { display: grid; gap: 10px; }
.delivery { padding: 22px; border: 1px solid var(--line); background: var(--wash); display: grid; grid-template-columns: 36px 1fr; gap: 15px; }
.delivery-icon { width: 27px; height: 27px; background: var(--lime); border: 1px solid var(--ink); display: grid; place-items: center; font-weight: 800; font-size: 12px; }
.delivery h3 { font-size: 17px; margin-bottom: 5px; }
.delivery p { margin: 0; color: var(--muted); font-size: 13px; }
.team-band { background: var(--ink); color: var(--paper); }
.team-band .eyebrow { color: var(--lime); }
.team-grid { display: grid; grid-template-columns: .8fr 1.2fr; gap: 90px; }
.team-band .muted { color: #bdc8c1; }
.credibility { display: grid; grid-template-columns: repeat(2, 1fr); gap: 0 30px; border-top: 1px solid #46514c; }
.credibility div { padding: 19px 0; border-bottom: 1px solid #46514c; }
.credibility strong { display: block; font-size: 22px; color: var(--lime); margin-bottom: 5px; }
.credibility span { color: #bdc8c1; font-size: 13px; }
.contact { padding: 84px 0 100px; }
.contact-grid { display: flex; justify-content: space-between; gap: 40px; align-items: end; }
.contact-details { text-align: right; color: var(--muted); font-size: 14px; }
.contact-details strong { color: var(--ink); display: block; font-size: 20px; margin-bottom: 5px; }
.footer { border-top: 1px solid var(--line); padding: 22px 0; color: var(--muted); font-size: 11px; display: flex; justify-content: space-between; }
.page-hero { padding: 80px 0 62px; border-bottom: 1px solid var(--line); }
.page-hero .lead { max-width: 700px; }
.detail-grid { display: grid; grid-template-columns: 1.25fr .75fr; gap: 55px; align-items: start; }
.detail-visual { border: 1px solid var(--line); background: var(--wash); padding: 9px; }
.detail-visual img { width: 100%; }
.stat-list { border-top: 1px solid var(--ink); }
.stat { padding: 18px 0; border-bottom: 1px solid var(--line); }
.stat strong { display: block; font-size: 29px; line-height: 1; margin-bottom: 7px; }
.stat span { font-size: 12px; color: var(--muted); }
.article { max-width: 820px; }
.article p { color: var(--muted); font-size: 16px; }
.article h2 { font-size: 32px; margin-top: 56px; }
.figure-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 13px; margin-top: 28px; }
.figure-grid figure { margin: 0; border: 1px solid var(--line); background: var(--wash); padding: 8px; }
.figure-grid figcaption { font-size: 11px; color: var(--muted); padding: 9px 3px 2px; }
.research-list { display: grid; grid-template-columns: repeat(2, 1fr); gap: 12px; }
.research-card { border: 1px solid var(--line); padding: 22px; min-height: 190px; display: flex; flex-direction: column; justify-content: space-between; }
.research-card[hidden] { display: none; }
.research-card:hover { border-color: var(--ink); background: var(--wash); }
.research-card h3 { font-size: 19px; margin-top: 8px; }
.research-card p { font-size: 13px; color: var(--muted); margin: 0; }
.filters { display: flex; gap: 8px; margin-bottom: 20px; flex-wrap: wrap; }
.filter { border: 1px solid var(--line); background: transparent; padding: 8px 12px; font-size: 12px; cursor: pointer; }
.filter.active, .filter:hover { background: var(--ink); color: var(--paper); border-color: var(--ink); }
.notice { border-left: 3px solid var(--coral); padding: 12px 17px; background: #fff3ef; color: var(--muted); font-size: 13px; margin: 26px 0; }
.video-frame { border: 1px solid var(--ink); background: #101817; min-height: 310px; display: grid; place-items: center; color: var(--lime); position: relative; overflow: hidden; }
.video-frame img { width: 100%; height: 100%; object-fit: cover; opacity: .78; }
.video-label { position: absolute; left: 20px; bottom: 17px; font-size: 11px; letter-spacing: .1em; }
.demo-link { display: grid; color: inherit; cursor: pointer; }
.demo-link:hover img { opacity: .92; }
@media (max-width: 800px) {
  .container { width: min(100% - 32px, var(--max)); }
  .nav { height: 62px; }
  .menu { display: block; }
  .brand-logo { width: 104px; height: 38px; }
  .nav-links { display: none; position: absolute; top: 62px; left: 0; right: 0; background: var(--paper); border-bottom: 1px solid var(--line); padding: 16px; flex-direction: column; align-items: stretch; gap: 0; }
  .nav-links.open { display: flex; }
  .nav-links a { padding: 12px 0; border-bottom: 1px solid var(--line); }
  .nav-cta { text-align: center; margin-top: 10px; }
  .hero { padding: 60px 0 54px; }
  .hero-grid, .pipeline, .team-grid, .detail-grid { grid-template-columns: 1fr; gap: 36px; }
  .hero-art { min-height: 240px; }
  .hero-art img { min-height: 240px; }
  .showcase-grid, .research-list, .figure-grid { grid-template-columns: 1fr; }
  .section { padding: 68px 0; }
  .section-head, .contact-grid { display: block; }
  .section-head p { margin-top: 18px; }
  .contact-details { text-align: left; margin-top: 28px; }
  .footer { display: block; }
  .footer span { display: block; margin-top: 7px; }
  h1 { font-size: clamp(43px, 14vw, 70px); }
}