:root {
  --navy: #0f2a44;
  --navy-2: #173a5c;
  --deep: #0b1f33;
  --ink: #1d2733;
  --muted: #5d6b7a;
  --line: #e3e7ec;
  --bg-soft: #f5f7fa;
  --accent: #c8873a;
  --accent-soft: #f6ede1;
  --gold: #e2b77a;
  --radius: 14px;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0; color: var(--ink); background: #fff; line-height: 1.9;
  font-family: "Hiragino Sans", "Hiragino Kaku Gothic ProN", "Noto Sans JP", "Noto Sans CJK JP", "Yu Gothic UI", "Yu Gothic", Meiryo, system-ui, sans-serif;
  font-feature-settings: "palt"; letter-spacing: .02em;
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; }
.wrap { max-width: 1120px; margin: 0 auto; padding: 0 24px; }

/* ヘッダー */
header.site {
  position: sticky; top: 0; z-index: 10;
  background: rgba(255,255,255,.92); backdrop-filter: saturate(160%) blur(10px);
  border-bottom: 1px solid var(--line);
}
header.site .wrap { display: flex; align-items: center; justify-content: space-between; height: 68px; }
.brand { display: flex; align-items: center; gap: 10px; text-decoration: none; }
.brand svg { width: 30px; height: 30px; }
.brand b { font-size: 1.25rem; letter-spacing: .18em; color: var(--navy); font-weight: 700; }
nav.global { display: flex; align-items: center; gap: 32px; font-size: .92rem; }
nav.global a { text-decoration: none; color: var(--ink); position: relative; padding: 4px 0; }
nav.global a::after { content: ""; position: absolute; left: 0; bottom: -2px; width: 0; height: 2px; background: var(--accent); transition: width .25s; }
nav.global a:hover::after, nav.global a[aria-current]::after { width: 100%; }
nav.global a.cta { background: var(--navy); color: #fff; padding: 6px 18px; border-radius: 999px; }
nav.global a.cta::after { display: none; }

/* トップの大見出し */
.hero {
  position: relative; overflow: hidden; color: #fff;
  background: radial-gradient(1200px 520px at 85% -10%, #2a5a86 0%, rgba(42,90,134,0) 60%), linear-gradient(160deg, var(--navy) 0%, var(--deep) 100%);
}
.hero .wrap { position: relative; padding: 112px 24px 120px; }
.hero .eyebrow { display: inline-block; font-size: .78rem; letter-spacing: .32em; color: var(--gold); margin-bottom: 22px; }
.hero h1 { font-size: clamp(2rem, 4.6vw, 3.4rem); line-height: 1.45; margin: 0 0 24px; font-weight: 700; letter-spacing: .04em; }
.hero p.lead { max-width: 560px; color: #c9d6e3; font-size: 1.02rem; margin: 0; }
.hero .deco { position: absolute; right: -60px; top: 50%; transform: translateY(-50%); width: 560px; max-width: 70vw; opacity: .55; pointer-events: none; }

/* 大見出しの下の案内ボタン */
.quicknav { background: #fff; border-bottom: 1px solid var(--line); }
.quicknav .wrap { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; padding-top: 28px; padding-bottom: 28px; }
.qbtn {
  display: flex; align-items: center; justify-content: space-between; gap: 16px;
  text-decoration: none; border: 1px solid var(--line); border-radius: var(--radius);
  padding: 22px 28px; transition: border-color .2s, box-shadow .2s, transform .15s;
}
.qbtn:hover { border-color: var(--accent); box-shadow: 0 6px 20px rgba(15,42,68,.08); transform: translateY(-1px); }
.qbtn small { display: block; font-size: .72rem; letter-spacing: .28em; color: var(--accent); font-weight: 600; }
.qbtn b { font-size: 1.15rem; color: var(--navy); }
.qbtn .arrow { flex-shrink: 0; width: 36px; height: 36px; border-radius: 50%; background: var(--navy); display: grid; place-items: center; }
.qbtn .arrow svg { width: 14px; height: 14px; }

/* セクション共通 */
section.block { padding: 104px 0; }
section.block.soft { background: var(--bg-soft); }
.sec-head { margin-bottom: 48px; }
.sec-head .en { display: block; font-size: .8rem; letter-spacing: .32em; color: var(--accent); font-weight: 600; margin-bottom: 8px; }
.sec-head h2 { font-size: clamp(1.5rem, 3vw, 2.1rem); margin: 0; color: var(--navy); letter-spacing: .06em; line-height: 1.5; }
.sec-head p { color: var(--muted); margin: 16px 0 0; max-width: 680px; }

/* 私たちの思い：頭文字（縦に並べ、左の列いっぱいに大きく） */
.about-grid { display: grid; grid-template-columns: 420px minmax(0, 1fr); gap: 50px; align-items: center; }
.acronym {
  margin: 0; padding: 4px 0 4px 32px; border-left: 4px solid var(--accent);
  display: flex; flex-direction: column; line-height: 1.02; color: var(--muted);
}
.acronym span { font-size: 4.3rem; letter-spacing: .01em; white-space: nowrap; }
.acronym b { font-size: 6rem; color: var(--navy); font-weight: 700; margin-right: 3px; }
.acronym span:nth-child(odd) b { color: var(--accent); }
.about-text { font-size: 1.6rem; line-height: 2; }
.about-text p { margin: 0 0 1.3em; }
.about-text p:last-child { margin-bottom: 0; }
.values { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; margin-top: 64px; }
.value { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 32px 28px; }
.value .num { font-size: .8rem; letter-spacing: .2em; color: var(--accent); font-weight: 700; }
.value h3 { margin: 8px 0 12px; color: var(--navy); font-size: 1.12rem; }
.value p { margin: 0; color: var(--muted); font-size: .94rem; }

/* 下層ページの見出し帯 */
.page-head { background: linear-gradient(160deg, var(--navy) 0%, var(--deep) 100%); color: #fff; }
.page-head .wrap { padding: 64px 24px 60px; }
.page-head .crumb { font-size: .8rem; color: #8fa3b8; margin-bottom: 18px; }
.page-head .crumb a { text-decoration: none; }
.page-head .crumb a:hover { color: #fff; }
.page-head .en { display: block; font-size: .8rem; letter-spacing: .32em; color: var(--gold); font-weight: 600; margin-bottom: 6px; }
.page-head h1 { margin: 0; font-size: clamp(1.7rem, 3.4vw, 2.4rem); letter-spacing: .08em; }

/* 事業内容 */
.services { display: grid; grid-template-columns: 1fr 1fr; gap: 28px; }
.service { position: relative; background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 40px 36px; overflow: hidden; }
.service::before { content: ""; position: absolute; left: 0; top: 0; width: 100%; height: 4px; background: linear-gradient(90deg, var(--navy), var(--accent)); }
.service .icon { width: 52px; height: 52px; border-radius: 12px; background: var(--accent-soft); display: grid; place-items: center; margin-bottom: 20px; }
.service .icon svg { width: 28px; height: 28px; }
.service h3 { margin: 0 0 12px; color: var(--navy); font-size: 1.25rem; }
.service p { margin: 0 0 20px; color: var(--muted); }
.service ul { margin: 0; padding: 0; list-style: none; border-top: 1px solid var(--line); }
.service li { padding: 12px 0; border-bottom: 1px solid var(--line); display: flex; justify-content: space-between; gap: 12px; font-size: .94rem; }
.tag { flex-shrink: 0; font-size: .75rem; color: var(--navy-2); background: #e8eef5; border-radius: 999px; padding: 2px 12px; align-self: center; }

/* 会社概要 */
dl.profile { margin: 0; border-top: 1px solid var(--line); max-width: 860px; }
dl.profile div { display: grid; grid-template-columns: 200px 1fr; border-bottom: 1px solid var(--line); }
dl.profile dt { padding: 22px 8px; color: var(--navy); font-weight: 600; }
dl.profile dd { margin: 0; padding: 22px 8px; }
dl.profile dd ul { margin: 0; padding-left: 1.2em; }

/* フッター（お問い合わせを含む） */
footer.site { background: var(--deep); color: #8fa3b8; font-size: .85rem; }
.contact { border-bottom: 1px solid rgba(255,255,255,.08); }
.contact .wrap { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 24px; padding-top: 56px; padding-bottom: 56px; }
.contact .en { display: block; font-size: .78rem; letter-spacing: .32em; color: var(--gold); font-weight: 600; margin-bottom: 4px; }
.contact h2 { margin: 0 0 6px; color: #fff; font-size: 1.35rem; letter-spacing: .06em; }
.contact p { margin: 0; color: #a9b9c9; font-size: .9rem; }
.mail { display: inline-flex; align-items: center; gap: 12px; background: #fff; color: var(--navy); text-decoration: none; border-radius: 999px; padding: 14px 28px; font-weight: 700; font-size: 1.05rem; letter-spacing: .03em; transition: transform .15s; }
.mail:hover { transform: translateY(-2px); }
.mail svg { width: 20px; height: 20px; }
.foot .wrap { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 20px; align-items: center; padding-top: 32px; padding-bottom: 32px; }
footer.site .brand b { color: #fff; }
footer.site nav { display: flex; flex-wrap: wrap; gap: 8px 24px; }
footer.site nav a { white-space: nowrap; text-decoration: none; }
footer.site a:hover { color: #fff; }

/* スマホ */
@media (max-width: 860px) {
  nav.global a:not(.cta) { display: none; }
  .hero .wrap { padding: 72px 24px 76px; }
  .hero .deco { opacity: .22; right: -160px; }
  .quicknav .wrap { gap: 12px; padding-top: 20px; padding-bottom: 20px; }
  .qbtn { padding: 16px 16px; }
  .qbtn b { font-size: 1rem; }
  .qbtn .arrow { width: 28px; height: 28px; }
  section.block { padding: 64px 0; }
  .about-grid { grid-template-columns: 1fr; gap: 40px; }
  .acronym { padding-left: 16px; border-left-width: 3px; }
  .acronym span { font-size: 11vw; }
  .acronym b { font-size: 15vw; }
  .about-text { font-size: 1rem; line-height: 1.9; }
  .services { grid-template-columns: 1fr; }
  .values { grid-template-columns: 1fr; gap: 14px; margin-top: 40px; }
  .value { padding: 22px 22px; }
  dl.profile div { grid-template-columns: 1fr; }
  dl.profile dt { padding: 18px 4px 0; }
  dl.profile dd { padding: 4px 4px 18px; }
  .service { padding: 32px 24px; }
  .page-head .wrap { padding: 44px 24px 40px; }
  .contact .wrap { padding-top: 44px; padding-bottom: 44px; }
}