:root{--bg:#f4f7fb;--ink:#0f1b2d;--muted:#5b6b7c;--line:#d7e0ea;--brand:#2563eb;font-family:Inter,ui-sans-serif,system-ui,-apple-system,Segoe UI,Roboto,Helvetica,Arial,sans-serif}
*{box-sizing:border-box}
body{margin:0;color:var(--ink);background:radial-gradient(1200px 500px at 10% -10%,#dbeafe 0,transparent 55%),var(--bg);min-height:100vh}
a{color:inherit;text-decoration:none}
.wrap{width:min(960px,calc(100% - 2rem));margin:0 auto}
.site-header{display:flex;align-items:center;justify-content:space-between;padding:1.25rem 0;gap:1rem}
.logo{display:flex;align-items:center;gap:.6rem;font-weight:700}
.logo-mark{width:28px;height:28px;border-radius:8px;background:linear-gradient(135deg,#3b82f6,#6366f1)}
.hero{padding:1.5rem 0 1rem}
.hero h1{font-size:clamp(1.8rem,4vw,2.6rem);line-height:1.15;margin:0 0 .75rem}
.hero p{color:var(--muted);font-size:1.1rem;max-width:640px;margin:0}
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:1rem;margin:1.5rem 0}
.card{display:block;background:#fff;border:1px solid var(--line);border-radius:16px;padding:1.25rem;box-shadow:0 10px 30px rgba(15,27,45,.06);transition:transform .15s,border-color .15s}
.card:hover{transform:translateY(-2px);border-color:var(--brand)}
.card h2{margin:0 0 .4rem;font-size:1.15rem;color:var(--brand)}
.card p{margin:0;color:var(--muted)}
.site-footer{color:var(--muted);padding:1rem 0 2rem;font-size:.9rem}