*, *::before, *::after { box-sizing: border-box; }
html, body { height: 100%; margin: 0; }
body {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px 16px;
  background: #ffffff;
  color: #1c2430;
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  text-align: center;
}
main { max-width: 560px; }
img { display: block; width: 220px; max-width: 70vw; height: auto; margin: 0 auto 32px; }
h1 { margin: 0 0 12px; font-size: 2rem; font-weight: 650; letter-spacing: -0.01em; }
.lead { margin: 0 0 24px; font-size: 1.125rem; color: #3a4556; }
.note { margin: 0; font-size: 0.95rem; color: #6b7686; }