:root {
  --bg: #f4f5fb;
  --card: #ffffff;
  --ink: #1c1c1e;
  --sub: #5f6170;
  --line: #e3e4ec;
  --accent: #4f5bd5;
}
@media (prefers-color-scheme: dark) {
  :root { --bg: #111114; --card: #1c1c22; --ink: #f2f2f7; --sub: #a3a4b3; --line: #2c2d36; --accent: #9aa3ff; }
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0; background: var(--bg); color: var(--ink);
  font: 17px/1.5 -apple-system, BlinkMacSystemFont, "SF Pro Text", Roboto, "Segoe UI", sans-serif;
}
main { max-width: 680px; margin: 0 auto; padding: 24px 16px 48px; }
a { color: var(--accent); }
.hero { display: flex; gap: 16px; align-items: center; margin: 8px 0 20px; }
.hero img { width: 72px; height: 72px; border-radius: 16px; flex: none; }
h1 { font-size: 28px; line-height: 1.2; margin: 0; }
.lead { margin: 2px 0 0; color: var(--sub); }
h2 { font-size: 20px; margin: 28px 0 10px; }
.card { background: var(--card); border: 1px solid var(--line); border-radius: 14px; padding: 4px 18px; }
.card p, .card ul { margin: 14px 0; }
.card li { margin: 6px 0; }
.note { color: var(--sub); font-size: 15px; }
footer { max-width: 680px; margin: 0 auto; padding: 0 16px 32px; color: var(--sub); font-size: 14px; }
footer a { color: var(--sub); }