*{box-sizing:border-box}body{margin:0;font:17px/1.6 system-ui,-apple-system,Segoe UI,Roboto,sans-serif;color:#1b2430;background:#fff}
a{color:#0b6bcb}header,footer{background:#0f1720;color:#dfe7ef}header a,footer a{color:#fff;text-decoration:none;margin-right:14px}
.w{max-width:880px;margin:auto;padding:16px 20px}nav{display:flex;flex-wrap:wrap;align-items:center;gap:4px}nav b{margin-right:auto;font-size:1.15em}
h1{font-size:2em;line-height:1.2}h2{margin-top:1.8em}img{max-width:100%;height:auto;border-radius:8px;border:1px solid #e3e8ee}
.btn{display:inline-block;padding:12px 20px;border-radius:8px;background:#0b6bcb;color:#fff;text-decoration:none;font-weight:600;margin:6px 8px 6px 0}.btn.alt{background:#eef3f8;color:#0b6bcb}
table{border-collapse:collapse;width:100%;font-size:.93em;display:block;overflow-x:auto}td,th{border:1px solid #dde3ea;padding:8px;text-align:left;vertical-align:top}th{background:#f4f7fa}
code,pre{background:#f4f7fa;border-radius:6px}pre{padding:12px;overflow-x:auto}.note{background:#fff8e6;border-left:4px solid #f0b400;padding:10px 14px}
.small{font-size:.85em;color:#5a6673}footer .small{color:#9fb0c0}