:root {
  --bg: #080a0c;
  --surface: #0d1013;
  --surface-raised: #121518;
  --ivory: #eeece7;
  --text: #f1efe9;
  --muted: #96938d;
  --gold: #b8924b;
  --gold-soft: #d0b478;
  --blue: #418fc9;
  --line: #ffffff20;

  --paper: #f7f5f0;
  --paper-soft: #f1eee8;
  --paper-card: #fffdfa;
  --paper-ink: #181a1b;
  --paper-muted: #67645e;
  --paper-line: #1f1e1b1f;
  --paper-gold: #85632d;

  --serif: Georgia, "Yu Mincho", "Hiragino Mincho ProN", serif;
  --sans: "Helvetica Neue", "Hiragino Kaku Gothic ProN", "Yu Gothic", sans-serif;
  --max: 1200px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 14px/1.9 var(--sans);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
a { color: inherit; text-decoration: none; }
img, svg { display: block; max-width: 100%; }
ul { list-style: none; margin: 0; padding: 0; }
h1, h2, h3, p { margin: 0; }
:focus-visible { outline: 2px solid var(--gold-soft); outline-offset: 3px; }

.container { max-width: var(--max); margin: 0 auto; padding: 0 32px; }
.serif { font-family: var(--serif); font-weight: 400; }
.eyebrow {
  font-family: var(--sans);
  font-size: 11px;
  letter-spacing: 0.28em;
  color: var(--gold);
  text-transform: uppercase;
}
.on-paper .eyebrow { color: var(--paper-gold); }

/* Header */
.site-header {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  background: linear-gradient(rgba(8,10,12,0.8), rgba(8,10,12,0.12));
  transition: background 0.3s ease, border-color 0.3s ease;
  border-bottom: 1px solid transparent;
}
.site-header.scrolled { background: rgba(8,10,12,0.92); border-bottom-color: var(--line); backdrop-filter: blur(8px); }
.header-inner { display: flex; align-items: center; justify-content: space-between; height: 84px; }
.brand { display: flex; align-items: center; gap: 14px; }
.brand-mark { width: 40px; height: 28px; color: var(--gold); }
.brand-text { display: flex; flex-direction: column; line-height: 1.2; }
.brand-name { font-family: var(--serif); font-size: 21px; letter-spacing: 0.22em; color: var(--gold-soft); }
.brand-sub { font-size: 8.5px; letter-spacing: 0.24em; color: var(--muted); margin-top: 3px; }
.main-nav { display: flex; gap: 34px; }
.main-nav a {
  font-size: 12.5px; letter-spacing: 0.12em; color: var(--ivory);
  padding: 6px 0; border-bottom: 1px solid transparent; transition: color .2s, border-color .2s;
}
.main-nav a:hover, .main-nav a[aria-current="page"] { color: var(--gold-soft); border-bottom-color: var(--gold); }
.nav-toggle { display: none; background: none; border: 0; width: 36px; height: 36px; cursor: pointer; flex-direction: column; justify-content: center; gap: 6px; }
.nav-toggle span { display: block; height: 1px; background: var(--ivory); }

/* Text links (MARIS-style underlined arrows) */
.tlink {
  display: inline-flex; align-items: center; gap: 14px;
  font-size: 12.5px; letter-spacing: 0.14em; color: var(--ivory);
  padding: 10px 0; border-bottom: 1px solid var(--gold);
  transition: color .2s, gap .2s;
}
.tlink:hover { color: var(--gold-soft); gap: 20px; }
.on-paper .tlink { color: var(--paper-ink); border-bottom-color: var(--paper-gold); }
.on-paper .tlink:hover { color: var(--paper-gold); }

/* Hero */
.hero { position: relative; min-height: 100vh; min-height: 100svh; display: flex; align-items: center; overflow: hidden; }
.hero-art { position: absolute; inset: 0; }
.hero-art svg { width: 100%; height: 100%; }
.hero-shade { position: absolute; inset: 0; background: linear-gradient(90deg, rgba(8,10,12,0.78) 0%, rgba(8,10,12,0.25) 60%, rgba(8,10,12,0.5) 100%), linear-gradient(180deg, rgba(8,10,12,0) 60%, var(--bg) 100%); }
.hero .hero-inner { position: relative; z-index: 1; padding-top: 128px; padding-bottom: 96px; }
.hero .eyebrow { margin-bottom: 36px; display: flex; align-items: center; gap: 16px; }
.hero .eyebrow::before { content: ""; width: 48px; height: 1px; background: var(--gold); }
.hero h1 {
  font-family: var(--serif); font-weight: 400;
  font-size: clamp(34px, 5.4vw, 58px); line-height: 1.45; letter-spacing: 0.025em;
  color: var(--text);
}
.hero-lead { margin-top: 32px; font-family: var(--serif); font-size: clamp(15px, 1.7vw, 20px); color: var(--gold-soft); letter-spacing: 0.04em; }
.hero-actions { margin-top: 48px; display: flex; gap: 40px; flex-wrap: wrap; }
.scroll-cue { position: absolute; z-index: 1; left: 32px; bottom: 36px; font-size: 10px; letter-spacing: 0.3em; color: var(--muted); display: flex; align-items: center; gap: 14px; writing-mode: horizontal-tb; }
.scroll-cue::after { content: ""; width: 56px; height: 1px; background: var(--muted); }

/* Sections */
.section { padding: 128px 0; position: relative; }
.section-dark { background: var(--bg); }
.section-surface { background: var(--surface); }
.on-paper { background: var(--paper); color: var(--paper-ink); }
.on-paper.soft { background: var(--paper-soft); }
.section-title {
  font-family: var(--serif); font-weight: 400;
  font-size: clamp(24px, 3.2vw, 34px); line-height: 1.7; letter-spacing: 0.05em; margin-top: 20px;
}
.section-lead { margin-top: 24px; color: var(--muted); max-width: 640px; font-size: 14.5px; }
.on-paper .section-lead { color: var(--paper-muted); }
.gold-rule { width: 56px; height: 1px; background: var(--gold); margin: 28px 0; }
.on-paper .gold-rule { background: var(--paper-gold); }

/* Philosophy */
.philosophy { text-align: center; padding: 160px 0; background: radial-gradient(ellipse at 50% 0%, #121518 0%, var(--bg) 70%); }
.philosophy .section-title { font-size: clamp(28px, 4.4vw, 46px); margin: 28px 0 0; }
.philosophy p.lead { margin: 32px auto 0; max-width: 560px; color: var(--muted); font-family: var(--serif); font-size: 16px; letter-spacing: 0.04em; }
.philosophy .tlink { margin-top: 48px; }
.philosophy .mark { width: 64px; height: 44px; margin: 0 auto 8px; color: var(--gold); }

/* Business diagram + cards */
.biz-head { display: grid; grid-template-columns: 1.1fr 0.9fr; gap: 64px; align-items: center; }
.diagram { position: relative; aspect-ratio: 1 / 1; max-width: 440px; margin-left: auto; width: 100%; }
.diagram svg { width: 100%; height: 100%; }
.diagram text { font-family: var(--sans); }
.biz-cards { margin-top: 88px; display: grid; grid-template-columns: repeat(3, 1fr); gap: 1px; background: var(--paper-line); border: 1px solid var(--paper-line); }
.biz-card { background: var(--paper-card); padding: 44px 36px; display: flex; flex-direction: column; transition: background .25s; }
.biz-card:hover { background: #fff; }
.biz-card .num { font-family: var(--serif); font-size: 13px; letter-spacing: 0.2em; color: var(--paper-gold); }
.biz-card h3 { font-family: var(--serif); font-weight: 400; font-size: 21px; line-height: 1.7; letter-spacing: 0.04em; margin-top: 20px; }
.biz-card p { margin-top: 18px; color: var(--paper-muted); font-size: 13.5px; flex: 1; }
.biz-card .tlink { margin-top: 28px; align-self: flex-start; }

/* Objective chooser */
.obj-list { margin-top: 56px; border-top: 1px solid var(--line); }
.obj-item { display: grid; grid-template-columns: 72px 1fr auto; align-items: center; gap: 24px; padding: 32px 8px; border-bottom: 1px solid var(--line); transition: background .25s, padding .25s; }
.obj-item:hover { background: var(--surface-raised); padding-left: 24px; padding-right: 24px; }
.obj-item .num { font-family: var(--serif); color: var(--gold); letter-spacing: 0.2em; font-size: 13px; }
.obj-item h3 { font-family: var(--serif); font-weight: 400; font-size: 20px; letter-spacing: 0.04em; }
.obj-item p { color: var(--muted); font-size: 13px; margin-top: 6px; }
.obj-item .arrow { color: var(--gold); font-size: 20px; }

/* Why */
.why-grid { margin-top: 64px; display: grid; grid-template-columns: repeat(2, 1fr); gap: 1px; background: var(--paper-line); border: 1px solid var(--paper-line); }
.why-item { background: var(--paper-card); padding: 48px 44px; }
.why-item .num { font-family: var(--serif); font-size: 40px; color: var(--paper-gold); line-height: 1; }
.why-item h3 { font-family: var(--serif); font-weight: 400; font-size: 21px; line-height: 1.7; letter-spacing: 0.04em; margin-top: 22px; }
.why-item p { margin-top: 14px; color: var(--paper-muted); font-size: 13.5px; }

/* CTA */
.cta { text-align: center; background: radial-gradient(ellipse at 50% 100%, #14181c 0%, var(--bg) 70%); padding: 144px 0; }
.cta .section-title { font-size: clamp(24px, 3.6vw, 38px); }
.cta-links { margin: 56px auto 0; max-width: 560px; border-top: 1px solid var(--line); text-align: left; }
.cta-links a { display: flex; justify-content: space-between; align-items: center; padding: 22px 8px; border-bottom: 1px solid var(--line); font-size: 14px; letter-spacing: 0.06em; transition: color .2s, padding .2s; }
.cta-links a:hover { color: var(--gold-soft); padding-left: 20px; }
.cta-links a span { color: var(--gold); }
.cta-main { margin-top: 48px; }

/* Sub page title */
.page-hero { position: relative; padding: 200px 0 96px; background: linear-gradient(180deg, #0d1013, var(--bg)); overflow: hidden; }
.page-hero::before { content: ""; position: absolute; inset: 0; background: repeating-linear-gradient(90deg, transparent 0 119px, rgba(184,146,75,0.07) 119px 120px); }
.page-hero .container { position: relative; }
.page-hero h1 { font-family: var(--serif); font-weight: 400; font-size: clamp(30px, 4.4vw, 46px); letter-spacing: 0.06em; margin-top: 20px; }
.page-hero p { margin-top: 20px; color: var(--muted); max-width: 620px; }
.breadcrumb { font-size: 11px; letter-spacing: 0.14em; color: var(--muted); margin-bottom: 28px; }
.breadcrumb a:hover { color: var(--gold-soft); }

/* Business detail */
.detail { display: grid; grid-template-columns: 300px 1fr; gap: 64px; padding: 72px 0; border-top: 1px solid var(--paper-line); }
.detail:first-child { border-top: 0; padding-top: 0; }
.detail h2 { font-family: var(--serif); font-weight: 400; font-size: 24px; line-height: 1.7; letter-spacing: 0.04em; margin-top: 14px; }
.detail p { color: var(--paper-muted); max-width: 640px; font-size: 14.5px; }
.steps { display: flex; flex-wrap: wrap; gap: 0; margin-top: 32px; border: 1px solid var(--paper-line); width: fit-content; max-width: 100%; }
.steps li { padding: 12px 22px; font-size: 12.5px; letter-spacing: 0.08em; background: var(--paper-card); border-right: 1px solid var(--paper-line); }
.steps li:last-child { border-right: 0; }

/* Company table */
.ctable { width: 100%; border-collapse: collapse; border-top: 1px solid var(--paper-line); }
.ctable th, .ctable td { text-align: left; padding: 24px 12px; border-bottom: 1px solid var(--paper-line); font-size: 14.5px; vertical-align: top; }
.ctable th { width: 200px; font-weight: 400; color: var(--paper-gold); letter-spacing: 0.12em; font-size: 12.5px; }
.ctable a { text-decoration: underline; text-underline-offset: 4px; }
.map { margin-top: 56px; border: 1px solid var(--paper-line); }
.map iframe { width: 100%; height: 340px; border: 0; display: block; filter: grayscale(0.4); }
.statement { max-width: 720px; }
.statement p + p { margin-top: 20px; }
.statement p { color: var(--muted); font-family: var(--serif); font-size: 16px; letter-spacing: 0.03em; }

/* Contact */
.contact-wrap { display: grid; grid-template-columns: 0.8fr 1.2fr; gap: 80px; }
.info-list dt { font-size: 11px; letter-spacing: 0.2em; color: var(--paper-gold); margin-top: 28px; }
.info-list dt:first-child { margin-top: 0; }
.info-list dd { margin: 6px 0 0; font-size: 14.5px; }
.info-list a { text-decoration: underline; text-underline-offset: 4px; }
.form { background: var(--paper-card); border: 1px solid var(--paper-line); padding: 48px; }
.field { margin-bottom: 28px; }
.field label { display: block; font-size: 12px; letter-spacing: 0.12em; color: var(--paper-ink); margin-bottom: 10px; }
.field .req { color: #9b3a1c; margin-left: 8px; font-size: 11px; }
.field input, .field select, .field textarea {
  width: 100%; padding: 13px 14px; background: #fff; color: var(--paper-ink);
  border: 1px solid #1f1e1b40; border-radius: 0; font: 14px/1.7 var(--sans);
}
.field input:focus, .field select:focus, .field textarea:focus { outline: 2px solid var(--paper-gold); outline-offset: 1px; border-color: var(--paper-gold); }
.field .hint { font-size: 12px; color: var(--paper-muted); margin-top: 8px; }
.btn-submit {
  width: 100%; padding: 18px; background: var(--bg); color: var(--gold-soft);
  border: 1px solid var(--bg); font: 13px var(--sans); letter-spacing: 0.24em; cursor: pointer; transition: background .2s, color .2s;
}
.btn-submit:hover { background: var(--gold); color: var(--bg); border-color: var(--gold); }
.form-note { margin-top: 20px; font-size: 12.5px; color: var(--paper-muted); text-align: center; }
.form-note a { text-decoration: underline; text-underline-offset: 4px; }

/* Privacy policy */
.policy { max-width: 800px; }
.policy h2 { font-family: var(--serif); font-weight: 400; font-size: 19px; letter-spacing: 0.04em; margin: 48px 0 14px; padding-bottom: 12px; border-bottom: 1px solid var(--paper-line); }
.policy h2:first-child { margin-top: 0; }
.policy p, .policy li { color: var(--paper-muted); font-size: 14.5px; }
.policy p { margin: 0 0 14px; }
.policy ul { list-style: disc; padding-left: 1.4em; margin: 0 0 14px; }
.policy a { color: var(--paper-ink); text-decoration: underline; text-underline-offset: 4px; }
.policy-date { margin-top: 56px !important; text-align: right; }
.consent { display: flex; align-items: flex-start; gap: 12px; margin-bottom: 28px; font-size: 13px; }
.consent input { width: 20px; height: 20px; margin: 2px 0 0; flex-shrink: 0; accent-color: var(--paper-gold); }
.consent label { margin: 0; letter-spacing: 0.02em; }
.consent a { text-decoration: underline; text-underline-offset: 4px; }

/* Footer */
.site-footer { background: var(--surface); border-top: 1px solid var(--line); padding: 72px 0 40px; }
.footer-grid { display: grid; grid-template-columns: 1.2fr 1fr; gap: 48px; align-items: start; }
.footer-addr { margin-top: 20px; color: var(--muted); font-size: 12.5px; }
.footer-nav { display: flex; gap: 32px; flex-wrap: wrap; justify-content: flex-end; }
.footer-nav a { font-size: 12.5px; letter-spacing: 0.12em; color: var(--ivory); }
.footer-nav a:hover { color: var(--gold-soft); }
.copyright { margin-top: 56px; padding-top: 24px; border-top: 1px solid var(--line); font-size: 11px; letter-spacing: 0.14em; color: var(--muted); }

/* Reveal */
.reveal { opacity: 0; transform: translateY(24px); transition: opacity .9s ease, transform .9s ease; }
.reveal.in { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .reveal { opacity: 1; transform: none; transition: none; }
}

/* Responsive */
@media (max-width: 900px) {
  .container { padding: 0 22px; }
  .header-inner { height: 72px; }
  .main-nav { display: none; }
  .nav-toggle { display: flex; }
  .site-header.open { background: rgba(8,10,12,0.97); }
  .site-header.open .main-nav { display: flex; flex-direction: column; position: absolute; top: 72px; left: 0; right: 0; padding: 12px 22px 28px; gap: 4px; background: rgba(8,10,12,0.97); border-bottom: 1px solid var(--line); }
  .site-header.open .main-nav a { padding: 14px 0; border-bottom: 1px solid var(--line); }
  .section { padding: 80px 0; }
  .philosophy, .cta { padding: 96px 0; }
  .biz-head, .contact-wrap, .detail, .footer-grid { grid-template-columns: 1fr; gap: 40px; }
  .diagram { margin: 0 auto; max-width: 340px; }
  .biz-cards, .why-grid { grid-template-columns: 1fr; }
  .obj-item { grid-template-columns: 48px 1fr 24px; gap: 14px; }
  .footer-nav { justify-content: flex-start; }
  .form { padding: 28px 22px; }
  .ctable th { width: 112px; }
  .scroll-cue { display: none; }
  .hero-shade { background: linear-gradient(180deg, rgba(8,10,12,0.55) 0%, rgba(8,10,12,0.4) 50%, var(--bg) 100%); }
}