:root {
  --bg: #fbfaf8;
  --surface: #ffffff;
  --ink: #15140f;
  --muted: #5d5a52;
  --faint: #8e8a80;
  --line: #e2ded4;
  --line-soft: #efece4;
  --accent: #7a5c2e;
  --serif: "Hiragino Mincho ProN", "Yu Mincho", "YuMincho", serif;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: -apple-system, BlinkMacSystemFont, "Hiragino Sans",
    "Noto Sans JP", "Yu Gothic", sans-serif;
  font-size: 15px;
  line-height: 1.95;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

a {
  color: inherit;
}

main a {
  color: var(--accent);
  text-underline-offset: 3px;
  text-decoration-thickness: 1px;
}

/* ── ヘッダー ───────────────────────────── */

.bar {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: 18px 40px;
  background: rgba(251, 250, 248, 0.88);
  backdrop-filter: saturate(180%) blur(12px);
  border-bottom: 1px solid var(--line-soft);
}

.mark {
  display: flex;
  align-items: baseline;
  gap: 9px;
  text-decoration: none;
}

.mark-ja {
  font-family: var(--serif);
  font-size: 18px;
  letter-spacing: 0.12em;
}

.mark-en {
  font-size: 10.5px;
  letter-spacing: 0.22em;
  color: var(--faint);
  text-transform: uppercase;
}

.bar nav {
  display: flex;
  gap: 26px;
}

.bar nav a {
  font-size: 13px;
  text-decoration: none;
  color: var(--muted);
  padding-bottom: 2px;
  border-bottom: 1px solid transparent;
}

.bar nav a:hover,
.bar nav a[aria-current] {
  color: var(--ink);
  border-bottom-color: var(--ink);
}

/* ── 本文の骨格 ─────────────────────────── */

main {
  max-width: 940px;
  margin: 0 auto;
  padding: 0 40px;
}

.hero {
  padding: 116px 0 96px;
  border-bottom: 1px solid var(--line-soft);
}

.eyebrow {
  margin: 0 0 22px;
  font-size: 10.5px;
  letter-spacing: 0.26em;
  text-transform: uppercase;
  color: var(--faint);
}

.hero h1 {
  margin: 0;
  font-family: var(--serif);
  font-size: clamp(25px, 3.7vw, 40px);
  line-height: 1.72;
  font-weight: 600;
  letter-spacing: 0.02em;
}

.lede {
  max-width: 640px;
  margin: 34px 0 0;
  color: var(--muted);
  font-size: 14.5px;
}

.page-head {
  padding: 84px 0 40px;
}

.page-head h1 {
  margin: 0;
  font-family: var(--serif);
  font-size: 30px;
  font-weight: 600;
  letter-spacing: 0.06em;
}

.block {
  padding: 68px 0;
  border-bottom: 1px solid var(--line-soft);
}

.block:last-of-type {
  border-bottom: none;
}

.block h2 {
  margin: 0 0 34px;
  font-size: 12px;
  letter-spacing: 0.2em;
  color: var(--faint);
  font-weight: 600;
}

.prose {
  max-width: 640px;
}

.prose p {
  margin: 0 0 20px;
  color: var(--muted);
}

.prose p:last-child {
  margin-bottom: 0;
}

/* ── 事業のカード ───────────────────────── */

.cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(290px, 1fr));
  gap: 22px;
}

.card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 3px;
  padding: 30px 28px 26px;
}

.card h3 {
  margin: 0;
  font-family: var(--serif);
  font-size: 19px;
  letter-spacing: 0.05em;
  font-weight: 600;
}

.card-kind {
  margin: 7px 0 18px;
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--faint);
}

.card p {
  margin: 0;
  font-size: 13.5px;
  color: var(--muted);
}

.links {
  display: flex;
  flex-wrap: wrap;
  gap: 18px;
  margin-top: 20px !important;
  font-size: 12.5px;
}

/* ── 会社概要の表 ───────────────────────── */

.facts {
  margin: 0;
  border-top: 1px solid var(--line);
}

.facts > div {
  display: grid;
  grid-template-columns: 170px 1fr;
  gap: 24px;
  padding: 19px 2px;
  border-bottom: 1px solid var(--line-soft);
}

.facts.wide > div {
  grid-template-columns: 200px 1fr;
}

.facts dt {
  font-size: 12.5px;
  color: var(--faint);
  letter-spacing: 0.08em;
}

.facts dd {
  margin: 0;
  font-size: 14.5px;
}

.facts .sub {
  display: block;
  font-size: 11.5px;
  letter-spacing: 0.1em;
  color: var(--faint);
  margin-top: 2px;
}

.facts .links {
  display: flex;
  gap: 18px;
  margin-top: 10px !important;
}

.more {
  margin: 26px 0 0;
  font-size: 13px;
}

/* ── 脚 ─────────────────────────────────── */

.foot {
  max-width: 940px;
  margin: 0 auto;
  padding: 52px 40px 64px;
  border-top: 1px solid var(--line);
  display: flex;
  flex-wrap: wrap;
  align-items: flex-end;
  justify-content: space-between;
  gap: 24px;
  font-size: 12.5px;
  color: var(--muted);
}

.foot p {
  margin: 0;
}

.foot-name {
  font-family: var(--serif);
  font-size: 15px;
  letter-spacing: 0.1em;
  color: var(--ink);
  margin-bottom: 6px !important;
}

.foot nav {
  display: flex;
  gap: 22px;
}

.foot nav a {
  text-decoration: none;
  border-bottom: 1px solid var(--line);
  padding-bottom: 2px;
}

.foot nav a:hover {
  border-bottom-color: var(--ink);
  color: var(--ink);
}

.copy {
  width: 100%;
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--faint);
}

@media (max-width: 720px) {
  .bar {
    padding: 14px 20px;
  }
  .bar nav {
    gap: 16px;
  }
  main,
  .foot {
    padding-left: 20px;
    padding-right: 20px;
  }
  .hero {
    padding: 64px 0 56px;
  }
  .block {
    padding: 48px 0;
  }
  .facts > div,
  .facts.wide > div {
    grid-template-columns: 1fr;
    gap: 5px;
  }
}