:root {
  color-scheme: light;
  font-family: "Hiragino Sans", "Yu Gothic", system-ui, sans-serif;
  background: #f4f6f8;
  color: #17212b;
}

* {
  box-sizing: border-box;
}

body {
  min-height: 100vh;
  margin: 0;
  display: grid;
  place-items: center;
  padding: 24px;
}

main {
  width: min(680px, 100%);
  padding: 32px;
  background: #ffffff;
  border: 1px solid #d8dee6;
  border-radius: 8px;
  box-shadow: 0 10px 28px rgba(23, 33, 43, 0.08);
}

.eyebrow {
  margin: 0 0 8px;
  color: #176b4d;
  font-size: 0.82rem;
  font-weight: 700;
  text-transform: uppercase;
}

h1 {
  margin: 0;
  font-size: clamp(1.7rem, 4vw, 2.4rem);
  line-height: 1.3;
  letter-spacing: 0;
}

.lead,
.next {
  color: #5f6b78;
  line-height: 1.75;
}

dl {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1px;
  margin: 28px 0;
  overflow: hidden;
  border: 1px solid #d8dee6;
  border-radius: 6px;
  background: #d8dee6;
}

dl div {
  min-width: 0;
  padding: 16px;
  background: #f8fafb;
}

dt {
  color: #5f6b78;
  font-size: 0.8rem;
}

dd {
  margin: 5px 0 0;
  font-size: 1.25rem;
  font-weight: 700;
}

.notice {
  margin: 0;
  padding: 14px 16px;
  border-left: 4px solid #176b4d;
  background: #e9f6f0;
  color: #104f3a;
  font-weight: 700;
  line-height: 1.65;
}

.next {
  margin: 18px 0 0;
  font-size: 0.9rem;
}

@media (max-width: 560px) {
  body {
    padding: 14px;
  }

  main {
    padding: 22px 18px;
  }

  dl {
    grid-template-columns: 1fr;
  }
}