:root {
  color-scheme: light;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
  color: #25332d;
  background: #f4f7f2;
  font-synthesis: none;
  text-rendering: optimizeLegibility;
}

* { box-sizing: border-box; }

body {
  min-height: 100vh;
  margin: 0;
  padding: 32px 24px 20px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  background: radial-gradient(circle at 50% 10%, #ffffff 0, #f4f7f2 62%);
}

.card {
  width: min(100%, 720px);
  padding: clamp(32px, 7vw, 72px);
  border: 1px solid #e1e9e2;
  border-radius: 24px;
  background: rgba(255, 255, 255, .94);
  box-shadow: 0 20px 60px rgba(34, 63, 48, .08);
  text-align: center;
}

.eyebrow {
  margin: 0 0 12px;
  color: #557b62;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: .18em;
}

h1 { margin: 0; font-size: clamp(32px, 7vw, 54px); letter-spacing: .04em; }
.lead { margin: 22px 0 14px; color: #557b62; font-size: 20px; font-weight: 650; }
.card > p:not(.eyebrow):not(.lead) { max-width: 520px; margin: 12px auto; color: #5b6860; line-height: 1.9; }
.card .note { font-size: 13px; }

footer {
  width: min(100%, 900px);
  margin-top: 26px;
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 8px 20px;
  color: #6e7c73;
  font-size: 13px;
  line-height: 1.8;
  text-align: center;
}

footer a { color: inherit; text-decoration: underline; text-underline-offset: 3px; }
footer a:hover { color: #315c3e; }

@media (max-width: 520px) {
  body { padding: 20px 16px 16px; }
  .card { border-radius: 18px; }
  footer { flex-direction: column; gap: 4px; }
}