:root {
  --bg: #f5f6f8;
  --card: #ffffff;
  --ink: #1c2530;
  --muted: #5c6773;
  --line: #e2e6ea;
  --accent: #2b6cb0;
  --badge: #eef4fb;
}
* { box-sizing: border-box; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font: 16px/1.65 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}
.wrap { max-width: 760px; margin: 0 auto; padding: 48px 24px 72px; }
.hdr { margin-bottom: 32px; }
.badge {
  display: inline-block; font-size: 13px; font-weight: 600; letter-spacing: .04em;
  text-transform: uppercase; color: var(--accent); background: var(--badge);
  padding: 4px 12px; border-radius: 999px; margin-bottom: 16px;
}
h1 { font-size: 34px; margin: 0 0 10px; letter-spacing: -0.02em; }
h2 { font-size: 20px; margin: 32px 0 12px; }
h3 { font-size: 17px; margin: 0 0 6px; }
.lead { font-size: 18px; color: var(--muted); margin: 0; }
.card, .linkcard {
  background: var(--card); border: 1px solid var(--line);
  border-radius: 14px; padding: 24px 26px;
}
.card p { margin: 0 0 12px; }
.card p:last-child { margin-bottom: 0; }
.links { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; margin-top: 24px; }
.linkcard { text-decoration: none; color: inherit; transition: border-color .15s, transform .15s; }
.linkcard:hover { border-color: var(--accent); transform: translateY(-2px); }
.linkcard p { color: var(--muted); margin: 0; font-size: 15px; }
.ft { margin-top: 48px; color: var(--muted); font-size: 14px; border-top: 1px solid var(--line); padding-top: 20px; }
a { color: var(--accent); }

.doc h1 { font-size: 30px; }
.doc .updated { color: var(--muted); font-size: 14px; margin: 0 0 28px; }
.doc h2 { font-size: 19px; border-top: 1px solid var(--line); padding-top: 24px; }
.doc h2:first-of-type { border-top: none; padding-top: 0; }
.doc p, .doc li { color: #33404d; }
.doc ul { padding-left: 20px; }
.doc li { margin-bottom: 6px; }
.back { display: inline-block; margin-bottom: 24px; font-size: 14px; text-decoration: none; }
.back:hover { text-decoration: underline; }
@media (max-width: 560px) {
  .links { grid-template-columns: 1fr; }
  h1 { font-size: 28px; }
}