* { box-sizing: border-box; margin: 0; padding: 0; }
body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", sans-serif;
  background: radial-gradient(ellipse at top, #1a1a2e 0%, #0f0f1e 100%);
  color: #e4e4ff;
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 2rem;
}
main { width: 100%; max-width: 560px; }
h1 {
  font-size: 2rem;
  background: linear-gradient(135deg, #f38ba8, #89b4fa);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  margin-bottom: 0.5rem;
}
.sub { color: #9aa0c0; margin-bottom: 2rem; font-size: 0.95rem; }
.sub code {
  background: rgba(255,255,255,0.08);
  padding: 2px 6px;
  border-radius: 4px;
  font-size: 0.85rem;
}
.card {
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: 12px;
  padding: 1.25rem 1.5rem;
  backdrop-filter: blur(8px);
}
.row {
  display: flex;
  justify-content: space-between;
  padding: 0.6rem 0;
  border-bottom: 1px solid rgba(255,255,255,0.06);
  font-size: 0.9rem;
}
.row:last-child { border-bottom: none; }
.row span { color: #9aa0c0; }
.row b { font-weight: 500; color: #e4e4ff; font-variant-numeric: tabular-nums; }
footer { margin-top: 2rem; text-align: center; color: #4a4f6f; font-size: 0.8rem; }