:root{--bg:#fff;--fg:#0b1220;--muted:#4b5563;--line:#e5e7eb;--card:#f8fafc;--accent:#0b3a7e;--accent2:#0a2a57;--radius:16px}*{box-sizing:border-box}html,body{margin:0;padding:0}body{background:var(--bg);color:var(--fg);font-family:ui-sans-serif,system-ui,-apple-system,Segoe UI,Roboto,Arial,Helvetica Neue,Helvetica;line-height:1.6}a{color:var(--accent);text-decoration:none}a:hover{text-decoration:underline}.container{max-width:1040px;margin:0 auto;padding:0 22px}.header{z-index:50;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border-bottom:1px solid var(--line);background:#ffffffeb;position:sticky;top:0}.header-inner{justify-content:space-between;align-items:center;height:64px;display:flex}.brand{letter-spacing:1px;font-size:24px;font-weight:800}.nav{gap:18px;font-size:14px;display:flex}.nav a{color:var(--fg);opacity:.82}.nav a:hover{opacity:1;text-decoration:none}main{padding:44px 0 56px}.hero{border:1px solid var(--line);border-radius:calc(var(--radius) + 6px);background:linear-gradient(#fff 0%,#f7fbff 100%);padding:34px;box-shadow:0 10px 26px #0a2a5714}.kicker{letter-spacing:.12em;text-transform:uppercase;color:var(--muted);font-size:12px}.h1{letter-spacing:-.03em;margin:10px 0 0;font-size:34px;line-height:1.15}.lead{color:var(--muted);max-width:75ch;margin-top:14px}.btns{flex-wrap:wrap;gap:10px;margin-top:18px;display:flex}.btn{border:1px solid var(--line);border-radius:12px;justify-content:center;align-items:center;padding:10px 14px;font-size:14px;font-weight:650;display:inline-flex}.btn-primary{background:var(--accent);color:#fff;border-color:var(--accent)}.btn-primary:hover{background:var(--accent2);text-decoration:none}.btn-ghost{color:var(--fg);background:#fff}.btn-ghost:hover{background:#f3f4f6;text-decoration:none}.grid{gap:16px;margin-top:18px;display:grid}.grid-2{grid-template-columns:repeat(2,minmax(0,1fr))}.grid-3{grid-template-columns:repeat(3,minmax(0,1fr))}@media (max-width:860px){.grid-2,.grid-3{grid-template-columns:1fr}}.card{border:1px solid var(--line);border-radius:var(--radius);background:#fff;padding:18px}.card-muted{background:var(--card)}.h2{margin:0 0 6px;font-size:18px}.small{color:var(--muted);margin:0;font-size:14px}.ul{margin:10px 0 0;padding-left:18px}.page-title{letter-spacing:-.02em;margin:0;font-size:28px}.page-subtitle{color:var(--muted);max-width:80ch;margin-top:10px}.footer{border-top:1px solid var(--line);color:var(--muted);padding:26px 0;font-size:13px}.footer-inner{flex-wrap:wrap;justify-content:space-between;gap:14px;display:flex}.footer a{color:var(--muted)}.footer a:hover{color:var(--fg);text-decoration:none}