:root{
  --bg:#0a0e1a;
  --bg-2:#0f1424;
  --panel:rgba(255,255,255,.04);
  --panel-2:rgba(255,255,255,.06);
  --border:rgba(255,255,255,.08);
  --text:#e6ecff;
  --muted:#8a93b3;
  --brand:#00e5ff;
  --brand-2:#7c5cff;
  --grad:linear-gradient(120deg,#00e5ff 0%,#7c5cff 60%,#ff4dd2 100%);
  --shadow:0 20px 60px -20px rgba(0,229,255,.25);
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
  background:var(--bg);
  color:var(--text);
  line-height:1.7;
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
#matrix-bg{
  position:fixed;inset:0;z-index:-1;opacity:.35;
  background:radial-gradient(1200px 600px at 20% -10%,rgba(0,229,255,.18),transparent 60%),
             radial-gradient(900px 500px at 100% 10%,rgba(124,92,255,.18),transparent 60%),
             radial-gradient(800px 400px at 50% 110%,rgba(255,77,210,.12),transparent 60%),
             var(--bg);
}
.container{max-width:1180px;margin:0 auto;padding:0 24px}
.eyebrow{
  display:inline-block;font-size:13px;letter-spacing:.18em;text-transform:uppercase;
  color:var(--brand);margin-bottom:14px;font-weight:600;
}
.eyebrow.center{display:block;text-align:center}
h1,h2,h3{line-height:1.25;letter-spacing:-.01em}
h1{font-size:clamp(36px,6vw,64px);font-weight:800;margin-bottom:20px}
h2{font-size:clamp(28px,3.6vw,40px);font-weight:800;margin-bottom:18px}
h3{font-size:20px;font-weight:700;margin-bottom:8px}
h2.center{text-align:center;margin-bottom:48px}
.grad{
  background:var(--grad);
  -webkit-background-clip:text;background-clip:text;
  -webkit-text-fill-color:transparent;color:transparent;
}

/* NAV */
.nav{
  position:sticky;top:0;z-index:50;
  backdrop-filter:saturate(180%) blur(14px);
  -webkit-backdrop-filter:saturate(180%) blur(14px);
  background:rgba(10,14,26,.72);
  border-bottom:1px solid var(--border);
}
.nav-inner{display:flex;align-items:center;justify-content:space-between;height:64px}
.brand{display:flex;align-items:center;gap:10px;font-weight:700}
.brand-logo{
  width:32px;height:32px;border-radius:8px;display:grid;place-items:center;
  background:var(--grad);color:#0a0e1a;font-weight:900;font-family:ui-monospace,Menlo,monospace;
}
.brand-text{font-size:15px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;max-width:60vw}
.brand-text em{color:var(--muted);font-style:normal;font-weight:500;font-size:13px;margin-left:4px}
@media (max-width:560px){
  .brand-text{font-size:13px;max-width:62vw}
}
.nav nav{display:flex;align-items:center;gap:28px}
.nav nav a{font-size:14px;color:var(--muted);transition:color .2s}
.nav nav a:hover{color:var(--text)}
.nav-cta{
  background:var(--grad);color:#0a0e1a !important;padding:8px 16px;border-radius:999px;font-weight:600;
}
@media (max-width:720px){
  .nav nav a:not(.nav-cta){display:none}
}

/* HERO */
.hero{padding:96px 0 80px}
.hero-inner{max-width:880px}
.lead{font-size:clamp(16px,1.6vw,19px);color:var(--muted);max-width:680px;margin-bottom:32px}
.hero-cta{display:flex;gap:14px;flex-wrap:wrap;margin-bottom:56px}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:14px 26px;border-radius:999px;font-weight:600;font-size:15px;
  transition:transform .15s ease,box-shadow .2s ease,background .2s;
}
.btn-primary{background:var(--grad);color:#0a0e1a;box-shadow:var(--shadow)}
.btn-primary:hover{transform:translateY(-2px)}
.btn-ghost{border:1px solid var(--border);color:var(--text)}
.btn-ghost:hover{background:var(--panel)}
.btn.big{padding:18px 32px;font-size:16px;align-self:start}
.hero-stats{
  list-style:none;display:grid;grid-template-columns:repeat(4,1fr);gap:16px;
  padding-top:32px;border-top:1px solid var(--border);
}
.hero-stats li{display:flex;flex-direction:column;gap:2px}
.hero-stats b{font-size:clamp(22px,2.4vw,30px);font-weight:800;background:var(--grad);
  -webkit-background-clip:text;background-clip:text;color:transparent}
.hero-stats span{font-size:13px;color:var(--muted)}
@media (max-width:720px){.hero-stats{grid-template-columns:repeat(2,1fr)}}

/* SECTIONS */
.section{padding:96px 0}
.section-alt{background:linear-gradient(180deg,rgba(255,255,255,.02),rgba(255,255,255,0))}
.grid-2{display:grid;grid-template-columns:1.1fr 1fr;gap:64px;align-items:center}
@media (max-width:880px){.grid-2{grid-template-columns:1fr;gap:40px}}

.card-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.feature{
  background:var(--panel);border:1px solid var(--border);border-radius:16px;padding:22px;
  transition:transform .2s,border-color .2s,background .2s;
}
.feature:hover{transform:translateY(-4px);border-color:rgba(0,229,255,.35);background:var(--panel-2)}
.feature-num{
  display:inline-block;font-family:ui-monospace,Menlo,monospace;
  font-size:13px;letter-spacing:.18em;font-weight:700;
  background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent;
  margin-bottom:12px;
}
.service-tag{
  display:inline-block;font-family:ui-monospace,Menlo,monospace;font-size:11px;letter-spacing:.18em;
  text-transform:uppercase;color:var(--brand);
  border:1px solid rgba(0,229,255,.35);border-radius:999px;padding:3px 10px;margin-bottom:14px;
}
.feature p{color:var(--muted);font-size:14px}
@media (max-width:520px){.card-grid{grid-template-columns:1fr}}

/* SERVICES */
.services{
  display:grid;grid-template-columns:repeat(3,1fr);gap:20px;
}
.service{
  background:var(--panel);border:1px solid var(--border);border-radius:18px;padding:28px;
  transition:transform .2s,border-color .2s;
}
.service:hover{transform:translateY(-6px);border-color:rgba(124,92,255,.45)}
.service h3{margin-bottom:10px}
.service p{color:var(--muted);font-size:15px}
@media (max-width:880px){.services{grid-template-columns:1fr 1fr}}
@media (max-width:560px){.services{grid-template-columns:1fr}}

/* INDUSTRIES */
.industries{
  display:grid;grid-template-columns:repeat(4,1fr);gap:14px;
}
.industry{
  background:var(--panel);border:1px solid var(--border);border-radius:14px;
  padding:22px;text-align:center;font-weight:600;
  transition:background .2s,border-color .2s,transform .2s;
}
.industry:hover{background:var(--panel-2);border-color:rgba(0,229,255,.35);transform:translateY(-3px)}
@media (max-width:780px){.industries{grid-template-columns:repeat(2,1fr)}}

/* TIMELINE */
.timeline{
  list-style:none;display:grid;grid-template-columns:repeat(5,1fr);gap:16px;counter-reset:step;
}
.timeline li{
  background:var(--panel);border:1px solid var(--border);border-radius:14px;
  padding:22px;display:flex;flex-direction:column;gap:10px;
}
.timeline b{
  background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent;
  font-size:15px;letter-spacing:.04em;
}
.timeline span{color:var(--muted);font-size:14px}
@media (max-width:980px){.timeline{grid-template-columns:1fr 1fr}}
@media (max-width:560px){.timeline{grid-template-columns:1fr}}

/* CONTACT */
.contact-card{
  display:grid;grid-template-columns:1.4fr auto;gap:40px;align-items:center;
  background:linear-gradient(135deg,rgba(0,229,255,.08),rgba(124,92,255,.10));
  border:1px solid var(--border);border-radius:24px;padding:48px;
}
.contact-list{list-style:none;margin-top:18px;display:grid;gap:10px}
.contact-list li{display:flex;gap:14px;color:var(--text);font-size:15px}
.contact-list span{color:var(--muted);min-width:64px}
.contact-list a{color:var(--brand);font-weight:600}
@media (max-width:780px){.contact-card{grid-template-columns:1fr;padding:32px}}

/* FOOTER */
.footer{border-top:1px solid var(--border);padding:32px 0;color:var(--muted);font-size:14px}
.footer-inner{display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap}
.beian-link{display:inline-block;margin-left:22px;color:var(--text);transition:color .2s}
.beian-link:hover{color:var(--brand)}
.muted{color:var(--muted)}

/* Reveal animation */
.reveal{opacity:0;transform:translateY(20px);transition:opacity .6s ease,transform .6s ease}
.reveal.in{opacity:1;transform:none}