:root{
  --ink:#0e1430; --ink-2:#3a4467; --muted:#6b7494;
  --bg:#ffffff; --bg-soft:#f5f6fc; --line:#e8eaf3;
  --brand:#3b5bfd; --brand-2:#7c5cff; --brand-ink:#1b237a;
  --accent:#ff7a45;
  --card:#ffffff;
  --shadow:0 26px 60px -30px rgba(20,33,90,.42);
  --shadow-sm:0 14px 30px -18px rgba(20,33,90,.3);
  --maxw:1180px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;color:var(--ink);background:var(--bg);line-height:1.65;overflow-x:hidden;
  font-family:'Inter','Segoe UI',system-ui,-apple-system,'PingFang SC','Microsoft YaHei',sans-serif;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3{font-family:'Space Grotesk','Inter',sans-serif;line-height:1.12;letter-spacing:-.02em;color:var(--ink)}
p{color:var(--muted)}
a{text-decoration:none}
img{max-width:100%}

.eyebrow{
  display:inline-flex;align-items:center;gap:8px;margin:0 0 14px;
  text-transform:uppercase;letter-spacing:.16em;font-size:12px;font-weight:800;color:var(--brand);
}
.eyebrow::before{content:"";width:18px;height:3px;border-radius:3px;background:var(--accent)}
.centered .eyebrow{justify-content:center}

/* buttons */
.btn{
  display:inline-flex;align-items:center;gap:9px;padding:14px 26px;border-radius:999px;
  font-weight:700;font-size:15px;border:1px solid transparent;cursor:pointer;transition:.22s;font-family:inherit;
}
.btn.primary{background:linear-gradient(120deg,var(--brand),var(--brand-2));color:#fff;
  box-shadow:0 16px 34px -14px rgba(59,91,253,.7)}
.btn.primary:hover{transform:translateY(-2px);box-shadow:0 22px 42px -14px rgba(59,91,253,.75)}
.btn.secondary{background:#fff;color:var(--brand-ink);border-color:rgba(255,255,255,.6)}
.btn.secondary:hover{transform:translateY(-2px)}

/* header */
.site-header{position:sticky;top:0;z-index:30;background:rgba(255,255,255,.78);
  backdrop-filter:saturate(180%) blur(14px);border-bottom:1px solid var(--line)}
.navbar{max-width:var(--maxw);margin:0 auto;padding:16px 24px;display:flex;justify-content:space-between;align-items:center}
.logo{display:inline-flex;align-items:center;gap:10px;font-family:'Space Grotesk';font-size:22px;font-weight:800;color:var(--ink)}
.logo .dot{width:11px;height:11px;border-radius:50%;background:linear-gradient(135deg,var(--brand),var(--brand-2));
  box-shadow:0 0 0 4px rgba(59,91,253,.14)}
.nav-links{display:flex;gap:6px;align-items:center}
.nav-links a{color:var(--ink-2);font-weight:600;font-size:15px;padding:9px 14px;border-radius:10px;transition:.18s}
.nav-links a:hover{color:var(--brand);background:var(--bg-soft)}
.nav-links a.cta{margin-left:6px;background:linear-gradient(120deg,var(--brand),var(--brand-2));color:#fff}
.nav-links a.cta:hover{color:#fff;transform:translateY(-1px)}
.menu-toggle{display:none;background:none;border:0;font-size:26px;color:var(--ink);cursor:pointer}

/* hero */
.hero{position:relative;overflow:hidden;color:#fff;
  background:
    radial-gradient(900px 520px at 12% 8%, rgba(124,92,255,.50), transparent 60%),
    radial-gradient(820px 520px at 88% 16%, rgba(59,91,253,.55), transparent 60%),
    radial-gradient(760px 520px at 72% 96%, rgba(255,122,69,.28), transparent 62%),
    linear-gradient(160deg,#0c1230,#161e54);
}
.hero::before{content:"";position:absolute;inset:0;opacity:.5;pointer-events:none;
  background-image:linear-gradient(rgba(255,255,255,.05) 1px,transparent 1px),
                   linear-gradient(90deg,rgba(255,255,255,.05) 1px,transparent 1px);
  background-size:54px 54px;mask-image:radial-gradient(800px 600px at 50% 30%,#000,transparent 80%)}
.blob{position:absolute;border-radius:50%;filter:blur(60px);opacity:.55;animation:drift 16s ease-in-out infinite alternate}
.blob.b1{width:340px;height:340px;background:#5b6bff;top:-60px;left:-40px}
.blob.b2{width:300px;height:300px;background:#9b6bff;bottom:-80px;right:6%;animation-delay:-6s}
.blob.b3{width:240px;height:240px;background:#ff7a45;bottom:18%;left:46%;opacity:.35;animation-delay:-10s}
@keyframes drift{to{transform:translate(36px,-30px) scale(1.08)}}
.hero-content{position:relative;max-width:var(--maxw);margin:0 auto;padding:104px 24px 92px}
.hero .eyebrow{color:#c8d2ff}
.hero h1{max-width:920px;font-size:clamp(40px,7vw,78px);margin:0 0 22px;color:#fff}
.hero h1 .mark{background:linear-gradient(transparent 60%, rgba(255,122,69,.55) 0);padding:0 .06em;border-radius:2px}
.hero-text{max-width:660px;font-size:clamp(17px,2vw,20px);color:#dfe6ff}
.hero-actions{margin-top:34px;display:flex;gap:14px;flex-wrap:wrap}
.hero-badges{margin-top:34px;display:flex;gap:10px;flex-wrap:wrap}
.hero-badges span{display:inline-flex;align-items:center;gap:8px;padding:9px 15px;border-radius:999px;
  background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.18);color:#eaf0ff;font-size:13px;font-weight:600}
.hero-badges span i{width:7px;height:7px;border-radius:50%;background:var(--accent);font-style:normal}

/* sections */
.section{position:relative;isolation:isolate;max-width:var(--maxw);margin:0 auto;padding:96px 24px}
.section::before{content:"";position:absolute;top:0;bottom:0;left:50%;width:100vw;transform:translateX(-50%);z-index:-1;pointer-events:none}
.muted{max-width:none;background:var(--bg-soft);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.muted>*{max-width:var(--maxw);margin-left:auto;margin-right:auto}
.section-heading{max-width:760px;margin-bottom:48px}
.section-heading.centered{text-align:center;margin-left:auto;margin-right:auto}
h2{font-size:clamp(30px,4.6vw,46px);margin:0 0 16px}
h3{margin-top:0;font-size:21px}

/* about */
.two-column{display:grid;grid-template-columns:1.25fr .75fr;gap:48px;align-items:center}
.stats-card{position:relative;background:linear-gradient(160deg,#101740,#1b2566);color:#fff;
  border-radius:26px;padding:14px 30px;box-shadow:var(--shadow);overflow:hidden}
.stats-card::after{content:"";position:absolute;width:200px;height:200px;border-radius:50%;
  background:radial-gradient(circle,rgba(124,92,255,.55),transparent 70%);top:-60px;right:-50px}
.stats-card div{position:relative;padding:22px 0;border-bottom:1px solid rgba(255,255,255,.12)}
.stats-card div:last-child{border-bottom:0}
.stats-card strong{display:block;font-family:'Space Grotesk';font-size:32px;
  background:linear-gradient(120deg,#9db4ff,#fff);-webkit-background-clip:text;background-clip:text;color:transparent}
.stats-card span{color:#c3cbec;font-size:15px}

/* service cards */
.cards{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}
.card{position:relative;background:var(--card);padding:30px 26px;border:1px solid var(--line);
  border-radius:22px;box-shadow:var(--shadow-sm);transition:.24s;overflow:hidden}
.card::before{content:"";position:absolute;left:0;top:0;height:4px;width:100%;
  background:linear-gradient(90deg,var(--brand),var(--brand-2));transform:scaleX(0);transform-origin:left;transition:.24s}
.card:hover{transform:translateY(-6px);box-shadow:var(--shadow);border-color:transparent}
.card:hover::before{transform:scaleX(1)}
.card .ico{width:52px;height:52px;border-radius:14px;display:grid;place-items:center;margin-bottom:18px;
  background:linear-gradient(135deg,rgba(59,91,253,.14),rgba(124,92,255,.14))}
.card .ico svg{width:26px;height:26px;stroke:var(--brand);fill:none;stroke-width:2;stroke-linecap:round;stroke-linejoin:round}
.card h3{margin-bottom:10px}
.card p{margin-bottom:0;font-size:15px}

/* partners */
.partners-section{padding-bottom:80px}
.partner-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.partner-card{background:var(--card);border:1px solid var(--line);border-radius:24px;padding:38px 28px;
  text-align:center;box-shadow:var(--shadow-sm);transition:.24s}
.partner-card:hover{transform:translateY(-6px);box-shadow:var(--shadow);border-color:transparent}
.partner-logo{width:100px;height:100px;margin:0 auto 22px;display:flex;align-items:center;justify-content:center;
  border-radius:24px;background:linear-gradient(135deg,var(--brand),var(--brand-ink));color:#fff;
  font-family:'Space Grotesk';font-size:23px;font-weight:800;letter-spacing:.02em;box-shadow:0 16px 30px -14px rgba(59,91,253,.6)}
.partner-card h3{margin-bottom:4px}
.partner-card p{margin-bottom:0}
.partner-logo img{border-radius: 24px;}

/* cta */
.cta-section{padding-top:80px;padding-bottom:80px}
.cta-box{position:relative;overflow:hidden;text-align:center;border-radius:32px;padding:68px 40px;color:#fff;
  background:
    radial-gradient(600px 300px at 80% -10%, rgba(255,122,69,.4), transparent 60%),
    linear-gradient(135deg,#141c4a,#3b5bfd 70%,#7c5cff);
  box-shadow:var(--shadow)}
.cta-box .eyebrow{color:#ffd9c7;justify-content:center}
.cta-box .eyebrow::before{background:#ffd9c7}
.cta-box h2{color:#fff}
.cta-box p{color:#e2e8ff;max-width:640px;margin:0 auto 28px}
.cta-box .btn.primary{background:#fff;color:var(--brand-ink);box-shadow:0 16px 34px -14px rgba(0,0,0,.4)}

/* contact */
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:34px}
.contact-form,.contact-info{background:var(--card);border:1px solid var(--line);border-radius:24px;
  padding:32px;box-shadow:var(--shadow-sm)}
label{display:block;font-weight:700;margin-bottom:18px;font-size:14px}
input,textarea{width:100%;margin-top:8px;padding:13px 15px;border:1px solid var(--line);border-radius:13px;
  font:inherit;font-size:15px;color:var(--ink);background:#fff;transition:.16s}
input::placeholder,textarea::placeholder{color:#9aa3c0}
input:focus,textarea:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 3px rgba(59,91,253,.14)}
.contact-form .btn{width:100%;justify-content:center}
.form-ok{display:none;margin-top:14px;padding:12px 16px;border-radius:12px;font-weight:600;font-size:14px;
  background:rgba(255,122,69,.12);color:#c2491f}
.contact-info h3{margin-bottom:14px}
.contact-info p{color:var(--ink-2);font-size:15px;margin:10px 0}
.contact-info a{color:var(--brand);font-weight:700}
.contact-info a:hover{text-decoration:underline}
.contact-info .note{font-size:13px;color:var(--muted);margin-top:18px;padding-top:16px;border-top:1px solid var(--line)}

/* footer */
.footer{position:relative;overflow:hidden;isolation:isolate;padding:40px 24px;text-align:center;background:#0a1030}
.footer::before{content:"";position:absolute;inset:0;z-index:-1;pointer-events:none;
  background:radial-gradient(600px 200px at 50% 120%, rgba(124,92,255,.28), transparent 60%),
             linear-gradient(rgba(255,255,255,.04) 1px,transparent 1px),
             linear-gradient(90deg,rgba(255,255,255,.04) 1px,transparent 1px);
  background-size:auto, 44px 44px, 44px 44px}
.footer p{color:#8b93b8;margin:0;font-size:14px}

/* ===== per-section tech backgrounds ===== */
/* About — dot matrix + violet glow top-right */
#about::before{
  background:
    radial-gradient(760px 380px at 95% -12%, rgba(124,92,255,.20), transparent 62%),
    radial-gradient(620px 320px at 0% 100%, rgba(59,91,253,.14), transparent 62%),
    radial-gradient(rgba(59,91,253,.20) 1.5px, transparent 1.6px);
  background-size:auto, auto, 26px 26px;
}
/* Profile (muted) — line grid + coral glow bottom-left */
#profile::before{
  background:
    radial-gradient(680px 340px at 4% 110%, rgba(255,122,69,.20), transparent 62%),
    radial-gradient(680px 340px at 100% 0%, rgba(59,91,253,.18), transparent 62%),
    linear-gradient(rgba(59,91,253,.11) 1px,transparent 1px),
    linear-gradient(90deg,rgba(59,91,253,.11) 1px,transparent 1px);
  background-size:auto, auto, 44px 44px, 44px 44px;
}
/* Partners — grid + dot mix + dual glow */
#partners::before{
  background:
    radial-gradient(600px 320px at 12% 0%, rgba(59,91,253,.20), transparent 62%),
    radial-gradient(600px 320px at 88% 100%, rgba(124,92,255,.20), transparent 62%),
    radial-gradient(rgba(124,92,255,.18) 1.5px, transparent 1.6px),
    linear-gradient(rgba(59,91,253,.07) 1px,transparent 1px),
    linear-gradient(90deg,rgba(59,91,253,.07) 1px,transparent 1px);
  background-size:auto, auto, 28px 28px, 56px 56px, 56px 56px;
}
/* Contact — line grid + glow top-right */
#contact::before{
  background:
    radial-gradient(720px 360px at 96% -8%, rgba(59,91,253,.20), transparent 62%),
    radial-gradient(560px 300px at 0% 100%, rgba(124,92,255,.14), transparent 62%),
    linear-gradient(rgba(59,91,253,.10) 1px,transparent 1px),
    linear-gradient(90deg,rgba(59,91,253,.10) 1px,transparent 1px);
  background-size:auto, auto, 42px 42px, 42px 42px;
}
/* CTA wrapper — dot matrix behind the gradient box */
#start::before{
  background:
    radial-gradient(700px 360px at 50% 0%, rgba(124,92,255,.16), transparent 60%),
    radial-gradient(rgba(59,91,253,.16) 1.4px, transparent 1.5px);
  background-size:auto, 30px 30px;
}

/* reveal animation */
.reveal{opacity:0;transform:translateY(22px);transition:opacity .6s ease,transform .6s ease}
.reveal.in{opacity:1;transform:none}

@media (prefers-reduced-motion:reduce){
  .blob{animation:none}
  .reveal{opacity:1;transform:none;transition:none}
  html{scroll-behavior:auto}
}

@media (max-width:980px){
  .nav-links a{font-size:14px;padding:8px 11px}
}
@media (max-width:860px){
  .menu-toggle{display:block}
  .nav-links{display:none;position:absolute;left:16px;right:16px;top:70px;background:#fff;padding:14px;
    border-radius:18px;box-shadow:var(--shadow);flex-direction:column;align-items:stretch;gap:4px;border:1px solid var(--line)}
  .nav-links.open{display:flex}
  .nav-links a.cta{margin-left:0;text-align:center}
  .two-column,.contact-grid{grid-template-columns:1fr}
  .cards,.partner-grid{grid-template-columns:1fr}
  .cta-box{padding:46px 26px}
  .hero-content{padding:84px 24px 72px}
}