:root{
  --bg:#f4f5f7;
  --panel:#ffffff;
  --text:#111318;
  --muted:#6f7682;
  --line:#e7e9ee;
  --dark:#12151b;
  --accent:#e8ff5a;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:Inter,-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;
  background:var(--bg);
  color:var(--text);
  line-height:1.65;
}
a{color:inherit;text-decoration:none}
.wrap{width:min(1120px,calc(100% - 40px));margin:0 auto}
.nav{
  position:sticky;
  top:0;
  z-index:20;
  background:rgba(244,245,247,.88);
  backdrop-filter:blur(16px);
  border-bottom:1px solid rgba(231,233,238,.9);
}
.nav-inner{height:68px;display:flex;align-items:center;justify-content:space-between}
.brand{font-weight:900;letter-spacing:.08em;font-size:13px}
.nav-links{display:flex;gap:24px;font-size:14px;color:var(--muted)}
.nav-links a:hover{color:var(--text)}.hero{
  padding:96px 0 56px;
  display:grid;
  grid-template-columns:1.35fr .65fr;
  gap:28px;
  align-items:stretch;
}
.hero-copy,.hero-card,.card,.project-card,.contact-card{
  background:var(--panel);
  border:1px solid var(--line);
  border-radius:28px;
}
.hero-copy{padding:56px}
.eyebrow{
  margin:0 0 14px;
  font-size:12px;
  font-weight:800;
  letter-spacing:.14em;
  color:var(--muted);
}
h1,h2,h3,p{margin-top:0}
h1{
  margin-bottom:22px;
  font-size:clamp(46px,7vw,82px);
  line-height:1.02;
  letter-spacing:-.055em;
}
.lead{
  max-width:720px;
  margin-bottom:30px;
  font-size:19px;
  color:#4f5661;
}
.hero-actions{display:flex;gap:12px;flex-wrap:wrap}
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  min-height:46px;
  padding:0 18px;
  border-radius:14px;
  font-weight:800;
  font-size:14px;
}
.btn.primary{background:var(--dark);color:#fff}
.btn.ghost{border:1px solid var(--line);background:#fff}
.hero-card{padding:28px;display:flex;flex-direction:column;justify-content:center}.hero-card>div{padding:20px 0;border-bottom:1px solid var(--line)}
.hero-card>div:last-child{border-bottom:0}
.hero-card span{display:block;color:var(--muted);font-size:13px}
.hero-card strong{display:block;margin-top:5px;font-size:30px;letter-spacing:-.03em}
.section{padding:44px 0}
.section-head{margin-bottom:22px}
.section-head h2,.contact-card h2{font-size:34px;letter-spacing:-.04em;margin-bottom:0}
.about-grid,.project-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.card,.project-card{padding:26px}
.card h3,.project-card h3{font-size:21px;margin-bottom:10px}
.card p,.project-card p,.timeline p,.contact-card p{color:var(--muted)}
.project-card{min-height:290px;display:flex;flex-direction:column}
.project-card.featured{background:var(--dark);color:#fff}
.project-card.featured p{color:#c7cbd2}
.project-top{display:flex;justify-content:space-between;align-items:center;margin-bottom:54px;color:var(--muted);font-size:12px}
.featured .project-top{color:#aab0ba}
.pill{padding:6px 9px;border:1px solid var(--line);border-radius:999px}
.featured .pill{border-color:#333844}
.tags{display:flex;gap:7px;flex-wrap:wrap;margin-top:auto;padding-top:24px}
.tags span{font-size:12px;padding:7px 9px;background:#f5f6f8;border-radius:9px}
.featured .tags span{background:#262b34}
.timeline{border-top:1px solid var(--line)}
.timeline-item{display:grid;grid-template-columns:80px 1fr;gap:18px;padding:24px 0;border-bottom:1px solid var(--line)}
.timeline-item>span{font-size:13px;color:var(--muted)}
.timeline-item h3{margin-bottom:5px}
.timeline-item p{margin-bottom:0}
.contact-card{padding:36px;display:flex;align-items:center;justify-content:space-between;gap:24px}
.contact-card p{margin-bottom:0;max-width:650px}
.footer{padding:36px 0 50px;color:var(--muted);font-size:13px}@media(max-width:860px){
  .hero{grid-template-columns:1fr;padding-top:56px}
  .hero-copy{padding:34px 24px}
  .about-grid,.project-grid{grid-template-columns:1fr}
  .hero-card{display:grid;grid-template-columns:repeat(3,1fr)}
  .hero-card>div{border-bottom:0;border-right:1px solid var(--line);padding:8px 14px}
  .hero-card>div:last-child{border-right:0}
  .hero-card strong{font-size:20px}
  .nav-links{display:none}
}
@media(max-width:560px){
  .wrap{width:min(100% - 24px,1120px)}
  .hero{padding-top:34px}
  h1{font-size:46px}
  .lead{font-size:16px}
  .hero-card{grid-template-columns:1fr}
  .hero-card>div{border-right:0;border-bottom:1px solid var(--line)}
  .hero-card>div:last-child{border-bottom:0}
  .section{padding:32px 0}
  .timeline-item{grid-template-columns:42px 1fr}
  .contact-card{align-items:flex-start;flex-direction:column}
}