:root {
  --ink: #211c14;
  --dark: #17140e;
  --paper: #f5f1e8;
  --panel: #faf7ef;
  --gold: #a8823f;
  --gold-d: #c9a35e;
  --body: #3a352c;
  --sub: #6d6555;
  --sub-d: #8d8271;
  --line: rgba(33, 28, 20, 0.16);
  --line2: rgba(33, 28, 20, 0.22);
  --hairline: rgba(33, 28, 20, 0.12);
}
* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  background: var(--paper);
  color: var(--ink);
  font-family: 'Zen Kaku Gothic New', 'Hiragino Kaku Gothic ProN', 'Yu Gothic', sans-serif;
  -webkit-font-smoothing: antialiased;
  line-height: 1.8;
}
.mincho { font-family: 'Shippori Mincho', 'Hiragino Mincho ProN', 'Yu Mincho', serif; }
.fude { font-family: 'Yuji Syuku', 'Hiragino Mincho ProN', serif; }
a { color: var(--gold); text-decoration: none; }
a:hover { color: #8a6a2e; }
img { max-width: 100%; }

.wrap { max-width: 1180px; margin: 0 auto; padding: 0 32px; }

/* ---------- header ---------- */
.site-header { border-bottom: 1px solid var(--line); }
.site-header.dark { background: var(--dark); border-bottom: 1px solid rgba(201, 163, 94, 0.25); }
.header-inner { display: flex; justify-content: space-between; align-items: center; height: 84px; }
.brand { font-family: 'Shippori Mincho', serif; font-size: 25px; font-weight: 600; letter-spacing: 0.06em; color: var(--ink); }
.brand .amp { color: var(--gold); }
.site-header.dark .brand { color: #efe9dc; }
.site-header.dark .brand .amp { color: var(--gold-d); }
.nav { display: flex; gap: 38px; font-size: 13px; letter-spacing: 0.2em; }
.nav a { color: var(--body); padding-bottom: 3px; }
.site-header.dark .nav a { color: #cfc6b4; }
.nav a.active { color: var(--gold); border-bottom: 1px solid var(--gold); }
.site-header.dark .nav a.active { color: var(--gold-d); border-bottom-color: var(--gold-d); }

/* ---------- hero ---------- */
.hero { background: var(--dark); color: #efe9dc; }
.hero-inner { display: flex; justify-content: space-between; align-items: stretch; padding: 84px 0 92px; gap: 40px; }
.hero-copy { display: flex; flex-direction: column; justify-content: center; gap: 34px; max-width: 640px; }
.eyebrow { font-size: 12px; letter-spacing: 0.34em; color: var(--gold-d); }
.hero h1 { font-size: clamp(30px, 4vw, 46px); font-weight: 500; line-height: 1.75; letter-spacing: 0.08em; }
.hero-lead { font-size: 15px; line-height: 2.1; color: #cfc6b4; letter-spacing: 0.04em; }
.btn-line { display: inline-block; border: 1px solid var(--gold-d); color: var(--gold-d); padding: 15px 36px; font-size: 13px; letter-spacing: 0.26em; transition: background 0.25s, color 0.25s; }
.btn-line:hover { background: var(--gold-d); color: var(--dark); }
.hero-art { display: flex; align-items: center; gap: 26px; padding-right: 8px; }
.v-note { writing-mode: vertical-rl; font-size: 12px; letter-spacing: 0.42em; color: var(--sub-d); padding-top: 8px; }
.v-fude { writing-mode: vertical-rl; font-size: clamp(96px, 12vw, 160px); line-height: 1; color: var(--gold-d); }

/* ---------- sections ---------- */
.section { padding: 88px 0; }
.sec-label { display: flex; align-items: center; gap: 16px; margin-bottom: 44px; }
.sec-label .num { font-family: 'Shippori Mincho', serif; font-size: 20px; color: var(--gold); }
.sec-label .rule { width: 48px; height: 1px; background: var(--gold); }
.sec-label .name { font-size: 12px; letter-spacing: 0.3em; color: var(--sub); }

.philosophy { display: flex; gap: 64px; align-items: flex-start; }
.philosophy .sec-label { margin-bottom: 0; min-width: 220px; }
.philosophy h2 { font-size: clamp(22px, 3vw, 30px); font-weight: 500; letter-spacing: 0.1em; line-height: 1.8; margin-bottom: 22px; }
.philosophy p { font-size: 15px; line-height: 2.2; color: var(--body); letter-spacing: 0.03em; max-width: 760px; }

.cards { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 26px; }
.card { border: 1px solid var(--line2); background: var(--panel); padding: 38px 30px 34px; display: flex; flex-direction: column; gap: 16px; }
.card .tag { font-size: 11px; letter-spacing: 0.3em; color: var(--gold); }
.card h3 { font-family: 'Shippori Mincho', serif; font-size: 21px; font-weight: 500; letter-spacing: 0.08em; line-height: 1.6; }
.card p { font-size: 13.5px; line-height: 2; color: var(--body); }
.card .hint { font-size: 11.5px; color: var(--gold); letter-spacing: 0.08em; }
.card .price { margin-top: auto; padding-top: 16px; border-top: 1px solid rgba(33, 28, 20, 0.14); font-size: 13px; color: var(--sub); }

.stats { background: var(--dark); color: #efe9dc; }
.stats-inner { display: flex; justify-content: space-between; align-items: center; padding: 60px 0; gap: 24px; }
.stat { display: flex; flex-direction: column; gap: 8px; }
.stat .tag { font-size: 11px; letter-spacing: 0.3em; color: var(--gold-d); }
.stat .val { font-family: 'Shippori Mincho', serif; font-size: clamp(24px, 3vw, 34px); color: var(--gold-d); letter-spacing: 0.04em; }
.stat .val small { font-size: 15px; color: var(--sub-d); }
.stat .cap { font-size: 12px; color: var(--sub-d); letter-spacing: 0.1em; }
.stat-rule { width: 1px; height: 72px; background: rgba(201, 163, 94, 0.25); }

.steps { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 26px; }
.step { display: flex; flex-direction: column; gap: 12px; border-top: 1px solid rgba(33, 28, 20, 0.18); padding-top: 20px; }
.step:first-child { border-top-color: var(--gold); }
.step .num { font-family: 'Shippori Mincho', serif; font-size: 14px; color: var(--gold); letter-spacing: 0.1em; }
.step h3 { font-family: 'Shippori Mincho', serif; font-size: 17px; letter-spacing: 0.08em; font-weight: 500; }
.step p { font-size: 13px; line-height: 1.9; color: var(--sub); }

/* ---------- page title ---------- */
.page-title { padding: 80px 0 56px; display: flex; justify-content: space-between; align-items: flex-end; }
.page-title h1 { font-size: clamp(28px, 3.5vw, 40px); font-weight: 500; letter-spacing: 0.1em; line-height: 1.6; }
.page-title .v-fude-s { writing-mode: vertical-rl; font-family: 'Yuji Syuku', serif; font-size: clamp(44px, 5vw, 64px); color: rgba(168, 130, 63, 0.35); line-height: 1; }
.page-title .stack { display: flex; flex-direction: column; gap: 16px; }

/* ---------- service blocks ---------- */
.svc { border: 1px solid var(--line2); background: var(--panel); margin-bottom: 52px; }
.svc.featured { border-color: var(--gold); }
.svc-head { display: flex; justify-content: space-between; align-items: center; padding: 32px 44px; border-bottom: 1px solid rgba(33, 28, 20, 0.14); gap: 16px; flex-wrap: wrap; }
.svc-head .left { display: flex; align-items: center; gap: 18px; flex-wrap: wrap; }
.svc-head .num { font-family: 'Shippori Mincho', serif; font-size: 18px; color: var(--gold); }
.svc-head h2 { font-family: 'Shippori Mincho', serif; font-size: clamp(20px, 2.5vw, 26px); font-weight: 500; letter-spacing: 0.1em; }
.svc-head .badge { border: 1px solid var(--gold); color: var(--gold); font-size: 11px; letter-spacing: 0.2em; padding: 6px 14px; }
.svc-head .meta { font-size: 12px; letter-spacing: 0.2em; color: var(--sub); }
.svc-body { display: flex; }
.svc-main { flex: 1 1 0; padding: 38px 44px; display: flex; flex-direction: column; gap: 20px; border-right: 1px solid rgba(33, 28, 20, 0.14); }
.svc-side { width: 380px; padding: 38px 44px; display: flex; flex-direction: column; gap: 16px; }
.svc-label { font-size: 12px; letter-spacing: 0.28em; color: var(--gold); }
.curri { display: flex; flex-direction: column; gap: 16px; }
.curri-row { display: flex; gap: 16px; align-items: baseline; }
.curri-row .no { font-family: 'Shippori Mincho', serif; color: var(--gold); font-size: 14px; min-width: 44px; flex-shrink: 0; }
.curri-row p { font-size: 14px; line-height: 1.9; color: var(--body); }
.curri-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px 28px; }
.curri-grid .curri-row .no { min-width: 20px; font-size: 13px; }
.curri-grid .curri-row p { font-size: 13.5px; line-height: 1.8; }
.bullets { display: flex; flex-direction: column; gap: 14px; }
.bullet { display: flex; gap: 14px; align-items: center; }
.bullet .dot { width: 6px; height: 6px; background: var(--gold); flex-shrink: 0; }
.bullet p { font-size: 14px; line-height: 1.9; color: var(--body); }
.note { font-size: 12.5px; line-height: 1.9; color: var(--sub); }
.spec { display: flex; justify-content: space-between; align-items: baseline; border-bottom: 1px solid var(--hairline); padding-bottom: 12px; gap: 12px; }
.spec .k { font-size: 12px; letter-spacing: 0.18em; color: var(--sub); flex-shrink: 0; }
.spec .v { font-size: 14px; color: var(--body); text-align: right; }
.spec .v small { font-size: 12px; color: var(--sub); }
.spec .v.big { font-family: 'Shippori Mincho', serif; font-size: 22px; color: var(--ink); }
.spec .v.gold { color: var(--gold); }

.svc-simple { border: 1px solid var(--line2); background: var(--panel); margin-bottom: 52px; padding: 32px 44px; display: flex; justify-content: space-between; align-items: center; gap: 24px; }
.svc-simple .left { display: flex; flex-direction: column; gap: 12px; max-width: 760px; }
.svc-simple p { font-size: 14px; line-height: 2; color: var(--body); }
.svc-simple .quote { font-size: 13px; color: var(--sub); letter-spacing: 0.06em; white-space: nowrap; }

.banner { background: var(--dark); color: #efe9dc; margin-bottom: 80px; padding: 40px 44px; display: flex; justify-content: space-between; align-items: center; gap: 24px; }
.banner .stack { display: flex; flex-direction: column; gap: 10px; max-width: 780px; }
.banner .tag { font-size: 11px; letter-spacing: 0.3em; color: var(--gold-d); }
.banner p { font-size: 14px; line-height: 2; color: #cfc6b4; }
.banner .btn-line { white-space: nowrap; }

/* ---------- company ---------- */
.def-table { border-top: 1px solid rgba(33, 28, 20, 0.3); max-width: 860px; margin-bottom: 80px; }
.def-row { display: flex; border-bottom: 1px solid rgba(33, 28, 20, 0.14); padding: 24px 8px; }
.def-row .k { width: 200px; flex-shrink: 0; font-size: 13px; letter-spacing: 0.2em; color: var(--sub); }
.def-row .v { font-size: 15px; letter-spacing: 0.04em; line-height: 2; }
.def-row .v.todo { color: var(--gold); }

/* ---------- contact ---------- */
.contact-wrap { padding: 88px 0 96px; display: flex; justify-content: space-between; align-items: flex-start; gap: 40px; }
.contact-main { display: flex; flex-direction: column; gap: 36px; max-width: 720px; }
.contact-main h1 { font-size: clamp(28px, 3.5vw, 40px); font-weight: 500; letter-spacing: 0.1em; line-height: 1.7; }
.contact-main .lead { font-size: 15px; line-height: 2.2; color: var(--body); letter-spacing: 0.03em; }
.mail-box { display: flex; flex-direction: column; gap: 12px; border-top: 1px solid rgba(33, 28, 20, 0.3); padding-top: 30px; }
.mail-box .k { font-size: 12px; letter-spacing: 0.24em; color: var(--sub); }
.mail-box .mail { font-family: 'Shippori Mincho', serif; font-size: clamp(20px, 3vw, 30px); letter-spacing: 0.05em; color: var(--ink); word-break: break-all; }
.mail-box .mail:hover { color: var(--gold); }

/* ---------- footer ---------- */
.site-footer { background: var(--dark); color: var(--sub-d); margin-top: auto; }
.footer-inner { padding: 34px 0; display: flex; justify-content: space-between; align-items: center; gap: 16px; }
.footer-brand { display: flex; align-items: baseline; gap: 18px; }
.footer-brand .logo { font-family: 'Shippori Mincho', serif; font-size: 18px; color: #efe9dc; }
.footer-brand .logo .amp { color: var(--gold-d); }
.footer-brand .co { font-size: 12px; letter-spacing: 0.1em; }
.copyright { font-size: 11px; letter-spacing: 0.12em; }
.page { min-height: 100vh; display: flex; flex-direction: column; }

/* ---------- responsive ---------- */
@media (max-width: 860px) {
  .wrap { padding: 0 20px; }
  .header-inner { height: auto; padding: 16px 0; flex-direction: column; gap: 14px; }
  .nav { gap: 22px; letter-spacing: 0.12em; }
  .hero-inner { flex-direction: column; padding: 56px 0 64px; }
  .hero-art { display: none; }
  .philosophy { flex-direction: column; gap: 28px; }
  .cards { grid-template-columns: 1fr; }
  .stats-inner { flex-direction: column; align-items: flex-start; gap: 28px; padding: 48px 0; }
  .stat-rule { display: none; }
  .steps { grid-template-columns: 1fr; }
  .svc-body { flex-direction: column; }
  .svc-main { border-right: none; border-bottom: 1px solid rgba(33, 28, 20, 0.14); }
  .svc-side { width: auto; }
  .curri-grid { grid-template-columns: 1fr; }
  .svc-simple { flex-direction: column; align-items: flex-start; }
  .banner { flex-direction: column; align-items: flex-start; }
  .def-row { flex-direction: column; gap: 6px; }
  .contact-wrap { flex-direction: column; }
  .contact-art { display: none; }
  .footer-inner { flex-direction: column; align-items: flex-start; }
  .page-title { flex-direction: column; align-items: flex-start; gap: 24px; }
  .page-title .v-fude-s { display: none; }
}