:root{
  --bg:#f7f9fc;--card:#fff;--text:#111827;--muted:#64748b;
  --brand:#2563eb;--brand2:#1d4ed8;--border:#e5e7eb;--dark:#0f172a;
  --max:1120px;--radius:18px
}
*{box-sizing:border-box}html{scroll-behavior:smooth}
body{margin:0;font-family:Inter,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
color:var(--text);background:var(--bg);line-height:1.7}
a{color:inherit;text-decoration:none}.container{max-width:var(--max);margin:auto;padding:0 22px}
header{position:sticky;top:0;z-index:20;background:rgba(255,255,255,.94);backdrop-filter:blur(12px);border-bottom:1px solid var(--border)}
.nav{height:72px;display:flex;align-items:center;justify-content:space-between;gap:24px}
.logo{font-weight:800;font-size:22px;letter-spacing:-.5px}.logo span{color:var(--brand)}
nav{display:flex;gap:22px;align-items:center;font-size:14px;font-weight:600}
nav a:hover{color:var(--brand)}.menu{display:none}
.btn{display:inline-flex;align-items:center;justify-content:center;padding:12px 18px;border-radius:12px;
font-weight:700;background:var(--brand);color:#fff;border:1px solid var(--brand);transition:.2s}
.btn:hover{background:var(--brand2);transform:translateY(-1px)}.btn.alt{background:#fff;color:var(--brand)}
.hero{padding:92px 0 76px;background:linear-gradient(135deg,#eff6ff 0%,#fff 55%,#eef2ff 100%)}
.hero-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:54px;align-items:center}
.eyebrow{display:inline-block;color:var(--brand);background:#dbeafe;border-radius:999px;padding:6px 12px;font-size:13px;font-weight:800}
h1{font-size:clamp(40px,6vw,66px);line-height:1.05;letter-spacing:-2.5px;margin:18px 0}
h2{font-size:34px;line-height:1.15;letter-spacing:-1px;margin:0 0 14px}h3{margin:0 0 8px}
.lead{font-size:19px;color:#475569;max-width:680px}.actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:26px}
.hero-card{background:#0f172a;color:#fff;border-radius:26px;padding:30px;box-shadow:0 24px 70px rgba(15,23,42,.2)}
.app-icon{width:76px;height:76px;border-radius:20px;background:#fff;display:grid;place-items:center;color:var(--brand);font-size:34px;font-weight:900;margin-bottom:20px}
section{padding:78px 0}.section-head{max-width:700px;margin-bottom:32px}.muted{color:var(--muted)}
.grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}.card{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);padding:26px}
.card p{color:var(--muted);margin-bottom:0}.icon{font-size:28px;margin-bottom:12px}
.app-detail{display:grid;grid-template-columns:.75fr 1.25fr;gap:32px;align-items:start}
.list{padding:0;margin:18px 0 0;list-style:none}.list li{padding:10px 0;border-bottom:1px solid var(--border)}
.notice{padding:16px 18px;background:#eff6ff;border:1px solid #bfdbfe;border-radius:14px;color:#1e40af}
.prose{max-width:850px}.prose h2{font-size:27px;margin-top:38px}.prose h3{font-size:20px;margin-top:28px}.prose p,.prose li{color:#475569}
footer{background:var(--dark);color:#cbd5e1;padding:46px 0 24px}.footer-grid{display:grid;grid-template-columns:1.3fr 1fr 1fr;gap:35px}
footer h3{color:#fff}footer a{color:#cbd5e1}footer a:hover{color:#fff}.copyright{border-top:1px solid #334155;margin-top:32px;padding-top:20px;font-size:13px}
form{display:grid;gap:14px;max-width:650px}label{font-weight:700;font-size:14px}input,textarea{width:100%;padding:13px 14px;border:1px solid var(--border);border-radius:11px;font:inherit;background:#fff}textarea{min-height:150px}
.breadcrumb{padding:25px 0 0;font-size:14px;color:var(--muted)}.badge{display:inline-block;padding:5px 10px;border-radius:999px;background:#ecfdf5;color:#047857;font-size:12px;font-weight:800}
@media(max-width:800px){nav{display:none}.menu{display:block}.hero-grid,.app-detail,.footer-grid{grid-template-columns:1fr}.grid{grid-template-columns:1fr}.hero{padding-top:60px}section{padding:55px 0}h1{letter-spacing:-1.5px}}