:root {
  --ink: #1d1d1f;
  --ink-soft: #5a5a60;
  --line: #e4e2dd;
  --paper: #fbfaf7;
  --accent: #2f4a3a;
  --max: 880px;
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: "Noto Sans JP", "Hiragino Sans", "Hiragino Kaku Gothic ProN", "Yu Gothic", sans-serif;
  font-size: 16px;
  line-height: 1.9;
  letter-spacing: 0.02em;
}
a { color: var(--accent); }
.wrap { max-width: var(--max); margin: 0 auto; padding: 0 24px; }

header.site {
  border-bottom: 1px solid var(--line);
}
header.site .wrap {
  display: flex; align-items: center; justify-content: space-between;
  height: 72px;
}
.logo {
  font-family: "Noto Serif JP", "Hiragino Mincho ProN", "Yu Mincho", serif;
  font-size: 20px; font-weight: 600; letter-spacing: 0.12em;
  color: var(--ink); text-decoration: none;
}
.logo small { font-family: inherit; font-size: 12px; color: var(--ink-soft); letter-spacing: 0.08em; margin-left: 10px; font-weight: 400; }
nav a { color: var(--ink-soft); text-decoration: none; font-size: 14px; margin-left: 28px; }
nav a:hover { color: var(--ink); }

.hero { padding: 120px 0 104px; border-bottom: 1px solid var(--line); }
.hero h1 {
  font-family: "Noto Serif JP", "Hiragino Mincho ProN", "Yu Mincho", serif;
  font-weight: 500; font-size: clamp(30px, 5vw, 44px);
  line-height: 1.6; letter-spacing: 0.08em; margin: 0 0 28px;
}
.hero p { color: var(--ink-soft); margin: 0; max-width: 36em; }

section { padding: 88px 0; border-bottom: 1px solid var(--line); }
section:last-of-type { border-bottom: 0; }
h2 {
  font-size: 13px; font-weight: 600; letter-spacing: 0.24em;
  color: var(--accent); margin: 0 0 40px; text-transform: uppercase;
}
h2 span { display: block; font-family: "Noto Serif JP", "Hiragino Mincho ProN", serif; font-size: 24px; font-weight: 500; color: var(--ink); letter-spacing: 0.1em; margin-top: 6px; text-transform: none; }

.services { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(2, 1fr); gap: 0; }
.services li { padding: 28px 28px 28px 0; border-top: 1px solid var(--line); }
.services li:nth-child(odd) { padding-right: 32px; }
.services h3 { font-size: 17px; font-weight: 600; margin: 0 0 8px; letter-spacing: 0.04em; }
.services p { margin: 0; color: var(--ink-soft); font-size: 15px; }

dl.profile { margin: 0; display: grid; grid-template-columns: 9em 1fr; }
dl.profile dt, dl.profile dd { padding: 18px 0; border-top: 1px solid var(--line); margin: 0; }
dl.profile dt { color: var(--ink-soft); font-size: 14px; }
dl.profile dd ol { margin: 0; padding-left: 1.4em; }

.contact p { margin: 0 0 12px; }
.contact .mail { font-size: 20px; letter-spacing: 0.04em; }

footer.site { padding: 40px 0 56px; color: var(--ink-soft); font-size: 13px; border-top: 1px solid var(--line); }
footer.site .wrap { display: flex; justify-content: space-between; flex-wrap: wrap; gap: 12px; }
footer.site a { color: var(--ink-soft); }

@media (max-width: 640px) {
  header.site .wrap { height: 64px; }
  nav a { margin-left: 16px; font-size: 13px; }
  .logo small { display: none; }
  .hero { padding: 72px 0 64px; }
  section { padding: 64px 0; }
  .services { grid-template-columns: 1fr; }
  .services li, .services li:nth-child(odd) { padding: 22px 0; }
  dl.profile { grid-template-columns: 1fr; }
  dl.profile dt { padding-bottom: 0; border-top: 1px solid var(--line); }
  dl.profile dd { padding-top: 4px; border-top: 0; }
}