:root {
  color-scheme: light;
  --background: #fbfcfa;
  --surface: #ffffff;
  --surface-muted: #eef3ef;
  --ink: #13201c;
  --text: #243630;
  --muted: #61706a;
  --line: #d9e0dc;
  --accent: #12685f;
  --accent-dark: #0b4c45;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: var(--background);
  color: var(--text);
  font-family:
    -apple-system, BlinkMacSystemFont, "Segoe UI", "Hiragino Sans",
    "Hiragino Kaku Gothic ProN", "Yu Gothic", Meiryo, sans-serif;
  line-height: 1.7;
}

a {
  color: var(--accent);
  text-decoration-thickness: 1px;
  text-underline-offset: 0.2em;
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1,
h2,
h3 {
  color: var(--ink);
  line-height: 1.25;
}

header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  border-bottom: 1px solid rgb(19 32 28 / 8%);
  background: var(--surface);
  padding: 16px max(20px, calc((100vw - 1080px) / 2));
}

nav {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  justify-content: flex-end;
}

nav a,
.brand {
  color: var(--ink);
  font-size: 0.92rem;
  font-weight: 760;
  text-decoration: none;
}

.brand {
  font-size: 1.04rem;
  font-weight: 850;
}

main {
  min-height: 100vh;
}

.hero {
  background: var(--surface-muted);
  padding: 56px 20px 48px;
}

.inner {
  width: min(1080px, 100%);
  margin: 0 auto;
}

.label {
  margin-bottom: 12px;
  color: var(--accent-dark);
  font-size: 0.78rem;
  font-weight: 760;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

h1 {
  max-width: 820px;
  margin-bottom: 18px;
  font-size: clamp(2rem, 5vw, 4.2rem);
  font-weight: 760;
  letter-spacing: 0;
}

.lead {
  max-width: 840px;
  margin-bottom: 0;
  color: var(--ink);
  font-size: clamp(1.05rem, 2vw, 1.35rem);
  font-weight: 650;
}

.section {
  padding: 48px 20px;
}

.section--muted {
  background: var(--surface-muted);
}

h2 {
  margin-bottom: 20px;
  font-size: clamp(1.45rem, 3vw, 2.3rem);
  letter-spacing: 0;
}

h3 {
  margin-bottom: 10px;
  font-size: 1.2rem;
}

.intro {
  max-width: 820px;
  color: var(--muted);
  font-size: 1rem;
}

.info-list {
  display: grid;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface);
}

.info-row {
  display: grid;
  grid-template-columns: minmax(160px, 260px) 1fr;
  border-bottom: 1px solid var(--line);
}

.info-row:last-child {
  border-bottom: 0;
}

dt,
dd {
  margin: 0;
  padding: 16px 18px;
}

dt {
  background: #f6f8f6;
  color: var(--ink);
  font-weight: 760;
}

dd {
  overflow-wrap: anywhere;
}

.service {
  max-width: 820px;
  border-left: 4px solid var(--accent);
  padding-left: 18px;
}

.footer {
  border-top: 1px solid var(--line);
  padding: 24px 20px;
  color: var(--muted);
  font-size: 0.9rem;
}

.footer-row {
  display: flex;
  flex-wrap: wrap;
  gap: 12px 18px;
  align-items: center;
  justify-content: space-between;
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 12px 16px;
}

@media (max-width: 720px) {
  header {
    align-items: flex-start;
    flex-direction: column;
  }

  nav {
    justify-content: flex-start;
  }

  .info-row {
    grid-template-columns: 1fr;
  }

  dt {
    padding-bottom: 8px;
  }

  dd {
    padding-top: 8px;
  }
}