*{box-sizing:border-box}
body{margin:0;font-family:system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;color:#1f2937;background:#f8fafc;line-height:1.6}
.top{display:flex;justify-content:space-between;align-items:center;max-width:960px;margin:0 auto;padding:20px 24px}
.brand{display:flex;gap:10px;align-items:center;font-weight:600;color:#111827;text-decoration:none}
nav a{margin-left:20px;color:#374151;text-decoration:none}
nav a:hover{color:#1d4ed8}
main{max-width:960px;margin:0 auto;padding:24px}
.hero{padding:48px 0 24px}
.hero h1{font-size:40px;line-height:1.15;margin:0 0 16px}
.hero p{font-size:18px;color:#4b5563;max-width:620px}
.button{display:inline-block;padding:12px 20px;border-radius:10px;background:#1d4ed8;color:#fff;text-decoration:none;font-weight:600}
.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:16px;margin:32px 0}
article{background:#fff;border:1px solid #e5e7eb;border-radius:12px;padding:20px}
article h2{font-size:18px;margin:0 0 8px}
pre{background:#0f172a;color:#e2e8f0;padding:16px;border-radius:10px;overflow-x:auto}
code{font-family:ui-monospace,Menlo,monospace;font-size:14px}
table{border-collapse:collapse;width:100%;max-width:520px;background:#fff}
th,td{text-align:left;padding:10px 12px;border-bottom:1px solid #e5e7eb}
.ok{color:#15803d;font-weight:600}
footer{max-width:960px;margin:40px auto;padding:0 24px;color:#6b7280;font-size:14px}