:root {
  --bg: #f7f8fa;
  --card: #ffffff;
  --text: #1a2233;
  --muted: #5b6577;
  --accent: #2563eb;
  --border: #e3e7ee;
}
* { box-sizing: border-box; margin: 0; padding: 0; }
body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
.wrap { max-width: 720px; margin: 0 auto; padding: 3rem 1.25rem 2rem; }
.hero { text-align: center; padding: 2rem 0 1.5rem; }
.hero h1 { font-size: 2.75rem; letter-spacing: -0.02em; }
.tagline { color: var(--muted); font-size: 1.15rem; margin-top: 0.35rem; }
.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 1.4rem 1.6rem;
  margin-bottom: 1.1rem;
}
.card h2 { font-size: 1.05rem; margin-bottom: 0.5rem; }
.card ul { padding-left: 1.4rem; }
.card li { margin-bottom: 0.4rem; }
.small { color: var(--muted); font-size: 0.9rem; }
.links { display: flex; gap: 0.8rem; justify-content: center; flex-wrap: wrap; margin: 1.75rem 0; }
.btn {
  display: inline-block;
  background: var(--accent);
  color: #fff;
  text-decoration: none;
  padding: 0.6rem 1.3rem;
  border-radius: 8px;
  font-weight: 600;
}
.btn:hover { opacity: 0.9; }
.foot { text-align: center; color: var(--muted); font-size: 0.85rem; margin-top: 2rem; }
a { color: var(--accent); }