:root{--bg:#fbfcff;--surface:#fff;--ink:#0f172a;--muted:#55607a;--line:#e6e9f2;--brand:#5b5ff0;--brand2:#14b8a6;--soft:#eef0ff;--radius:18px}
*{box-sizing:border-box}html{scroll-behavior:smooth}
body{margin:0;font-family:ui-sans-serif,system-ui,-apple-system,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;color:var(--ink);background:var(--bg);line-height:1.6;-webkit-font-smoothing:antialiased}
a{color:var(--brand);text-decoration:none}a:hover{text-decoration:underline}
.wrap{max-width:1080px;margin:0 auto;padding:0 24px}
header.nav{position:sticky;top:0;z-index:10;background:rgba(251,252,255,.85);backdrop-filter:saturate(180%) blur(10px);border-bottom:1px solid var(--line)}
.nav .wrap{display:flex;align-items:center;justify-content:space-between;height:64px}
.logo{display:flex;align-items:center;gap:10px;font-weight:700;font-size:1.15rem;color:var(--ink)}.logo:hover{text-decoration:none}
.logo svg{width:32px;height:32px}
.nav-links{display:flex;gap:22px;align-items:center;font-size:.95rem}.nav-links a{color:var(--muted)}.nav-links a.btn-primary{color:#fff}
.btn{display:inline-flex;align-items:center;gap:8px;padding:12px 22px;border-radius:999px;font-weight:600;font-size:1rem;transition:transform .15s,box-shadow .15s,background .15s}
.btn:hover{text-decoration:none;transform:translateY(-1px)}
.btn-primary{background:var(--brand);color:#fff;box-shadow:0 8px 24px -8px rgba(91,95,240,.6)}.btn-primary:hover{background:#4a4ee0}
.btn-ghost{color:var(--ink);border:1px solid var(--line);background:var(--surface)}
.btn-sm{padding:8px 16px;font-size:.9rem}
.hero{position:relative;overflow:hidden;padding:96px 0 80px;text-align:center}
.hero::before{content:"";position:absolute;inset:-40% -10% auto;height:620px;background:radial-gradient(closest-side,rgba(91,95,240,.16),transparent 70%),radial-gradient(closest-side at 70% 60%,rgba(20,184,166,.14),transparent 70%);z-index:-1}
.badge{display:inline-flex;align-items:center;gap:8px;padding:6px 14px;border-radius:999px;background:var(--soft);color:var(--brand);font-weight:600;font-size:.85rem}
.badge i{width:8px;height:8px;border-radius:50%;background:var(--brand2);display:inline-block}
h1{font-size:clamp(2.4rem,6vw,4rem);line-height:1.08;letter-spacing:-.03em;margin:22px 0 18px}
.grad{background:linear-gradient(90deg,var(--brand),var(--brand2));-webkit-background-clip:text;background-clip:text;color:transparent}
.lead{font-size:clamp(1.05rem,2.2vw,1.25rem);color:var(--muted);max-width:640px;margin:0 auto 34px}
.cta-row{display:flex;gap:12px;justify-content:center;flex-wrap:wrap}
.note{margin-top:16px;color:var(--muted);font-size:.9rem}
section{padding:80px 0}
.section-head{text-align:center;max-width:640px;margin:0 auto 48px}
.eyebrow{color:var(--brand);font-weight:700;font-size:.8rem;letter-spacing:.12em;text-transform:uppercase}
h2{font-size:clamp(1.8rem,4vw,2.4rem);letter-spacing:-.02em;margin:10px 0 12px;line-height:1.2}
.section-head p{color:var(--muted);margin:0}
.grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:26px;transition:box-shadow .2s,transform .2s}
.card:hover{box-shadow:0 18px 40px -24px rgba(15,23,42,.25);transform:translateY(-2px)}
.icon{width:46px;height:46px;border-radius:12px;display:grid;place-items:center;background:var(--soft);margin-bottom:16px}
.icon svg{width:24px;height:24px;stroke:var(--brand);fill:none;stroke-width:2;stroke-linecap:round;stroke-linejoin:round}
.card h3{margin:0 0 8px;font-size:1.1rem}.card p{margin:0;color:var(--muted);font-size:.96rem}
.how{background:linear-gradient(180deg,#f3f5ff,transparent)}
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;counter-reset:s}
.step{position:relative;padding:28px 26px 26px;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius)}
.step::before{counter-increment:s;content:counter(s);display:grid;place-items:center;width:36px;height:36px;border-radius:50%;background:linear-gradient(135deg,var(--brand),var(--brand2));color:#fff;font-weight:700;margin-bottom:14px}
.step h3{margin:0 0 6px;font-size:1.08rem}.step p{margin:0;color:var(--muted);font-size:.96rem}
.cta-band{margin:0 auto;max-width:880px;text-align:center;background:linear-gradient(135deg,var(--brand),#4f46e5 45%,var(--brand2));color:#fff;border-radius:28px;padding:56px 28px;box-shadow:0 30px 60px -30px rgba(79,70,229,.6)}
.cta-band h2{color:#fff}.cta-band p{color:rgba(255,255,255,.88);max-width:560px;margin:0 auto 28px}
.cta-band .btn{background:#fff;color:var(--brand)}
footer{border-top:1px solid var(--line);padding:32px 0;color:var(--muted);font-size:.92rem}
footer .wrap{display:flex;justify-content:space-between;align-items:center;gap:16px;flex-wrap:wrap}
footer nav{display:flex;gap:20px}
.prose{max-width:720px;margin:0 auto;padding:64px 24px 80px}
.prose h1{font-size:clamp(2rem,5vw,2.6rem);margin-top:0}.prose h2{font-size:1.3rem;margin-top:36px}
.prose p,.prose li{color:#334155}.prose .updated{color:var(--muted);font-size:.92rem}
@media (max-width:900px){.grid{grid-template-columns:repeat(2,1fr)}.steps{grid-template-columns:1fr}}
@media (max-width:560px){.grid{grid-template-columns:1fr}.nav-links a:not(.btn){display:none}.hero{padding:72px 0 56px}section{padding:60px 0}}
@media (prefers-reduced-motion:reduce){*{transition:none!important;scroll-behavior:auto!important}}