:root {
  --bg: #fff5f7;
  --card: #ffffff;
  --ink: #1c1c1e;
  --sub: #6e6e76;
  --pink: #f45c82;
  --line: #f3d9e0;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #1c1c1e;
    --card: #2c2c2e;
    --ink: #f2f2f7;
    --sub: #a1a1aa;
    --pink: #ff7d9c;
    --line: #3a3a3c;
  }
}
* { box-sizing: border-box; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font: 17px/1.55 -apple-system, BlinkMacSystemFont, "SF Pro Text", Roboto, "Segoe UI", sans-serif;
}
main { max-width: 720px; margin: 0 auto; padding: 32px 16px 64px; }
header { display: flex; align-items: center; gap: 16px; margin-bottom: 24px; }
header img { width: 72px; height: 72px; border-radius: 16px; }
h1 { font-size: 30px; line-height: 1.2; margin: 0; }
h2 { font-size: 21px; margin: 28px 0 8px; }
.sub { color: var(--sub); margin: 4px 0 0; }
.card { background: var(--card); border-radius: 16px; padding: 4px 20px 16px; margin: 16px 0; border: 1px solid var(--line); }
a { color: var(--pink); }
nav { display: flex; gap: 16px; flex-wrap: wrap; margin: 8px 0 24px; }
footer { color: var(--sub); font-size: 14px; margin-top: 40px; }
ul { padding-left: 22px; }