:root {
  color-scheme: light;
  --paper: #fffaf6;
  --rose: #c93461;
  --violet: #8950df;
  --ink: #28223b;
  --muted: #6f6878;
  --line: #efd3dd;
}
* { box-sizing: border-box; }
body {
  margin: 0;
  color: var(--ink);
  background: radial-gradient(circle at 12% 9%, #ffe8ef 0 2%, transparent 12%), var(--paper);
  font: 17px/1.7 -apple-system, BlinkMacSystemFont, "SF Pro Text", "PingFang SC", sans-serif;
}
header, main, footer { width: min(760px, calc(100% - 40px)); margin-inline: auto; }
header { padding: 56px 0 24px; }
.brand { color: var(--violet); font-size: clamp(30px, 6vw, 48px); font-weight: 800; margin: 0; }
.tagline { color: var(--muted); margin: 4px 0 18px; }
nav { display: flex; flex-wrap: wrap; gap: 10px; }
nav a { color: var(--rose); background: #fff; border: 1px solid var(--line); border-radius: 999px; padding: 6px 14px; text-decoration: none; }
main { background: rgba(255,255,255,.82); border: 1px solid var(--line); border-radius: 28px; padding: clamp(22px, 5vw, 42px); box-shadow: 0 18px 60px rgba(93,51,77,.08); }
h1, h2 { line-height: 1.25; }
h2 { margin-top: 30px; color: var(--rose); }
a { color: var(--violet); }
.notice { border-left: 4px solid var(--rose); padding: 10px 14px; background: #fff2f6; }
footer { color: var(--muted); font-size: 14px; padding: 24px 0 50px; }