:root {
  --ink: #241815;
  --text: #2d2724;
  --muted: #7f7771;
  --paper: #f7f5f2;
  --white: #ffffff;
  --accent: #b78a62;
  --accent-soft: #e8d8c7;
  --line: #ded6cf;
  --shadow: 0 24px 70px rgba(36, 24, 21, .10);
  --sans: "Zen Kaku Gothic New", "Noto Sans JP", system-ui, sans-serif;
  --serif: "Shippori Mincho", "Noto Serif JP", serif;
  --mono: "Space Grotesk", ui-monospace, monospace;
  --header-h: 94px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: var(--header-h); }
body {
  margin: 0;
  padding-top: var(--header-h);
  background: var(--paper);
  color: var(--text);
  font-family: var(--sans);
  line-height: 1.85;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}
body.is-locked { overflow: hidden; }
img { max-width: 100%; height: auto; display: block; }
a { color: inherit; }
h1, h2, h3, .lead, .btn, summary { word-break: auto-phrase; text-wrap: balance; }
p { margin: 0; }
.serif { font-family: var(--serif); }
.mono { font-family: var(--mono); }
.site-bg {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: -1;
  background:
    radial-gradient(circle at 14% 6%, rgba(183,138,98,.14), transparent 24%),
    linear-gradient(180deg, #fff 0%, var(--paper) 64%, #f0ebe5 100%);
}
.container { width: min(1120px, calc(100% - 48px)); margin: 0 auto; }
.wide { width: min(1360px, calc(100% - 48px)); margin: 0 auto; }
.eyebrow {
  font: 700 11px/1 var(--mono);
  letter-spacing: .22em;
  color: var(--accent);
  text-transform: uppercase;
}
.section { position: relative; padding: 104px 0; }
.section-head { display: flex; justify-content: space-between; gap: 32px; align-items: end; margin-bottom: 42px; }
.section-title {
  font-family: var(--serif);
  font-size: clamp(30px, 4vw, 48px);
  line-height: 1.36;
  margin: 14px 0 0;
  color: var(--ink);
  font-weight: 700;
}
.section-lead { color: var(--muted); max-width: 36em; }
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  min-height: 48px;
  padding: 13px 24px;
  border: 1px solid var(--ink);
  text-decoration: none;
  font-weight: 700;
  font-size: 14px;
  background: var(--ink);
  color: var(--white);
  white-space: nowrap;
  transition: transform .25s ease, background .25s ease, color .25s ease, border-color .25s ease;
}
.btn:hover { transform: translateY(-2px); background: #3a2924; }
.btn--light { background: var(--white); color: var(--ink); border-color: var(--line); }
.btn--light:hover { background: var(--paper); border-color: var(--accent); }
.btn--ghost { background: transparent; color: var(--ink); border-color: var(--line); }
.icon { width: 18px; height: 18px; flex: 0 0 auto; }

.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  width: 100%;
  z-index: 1000;
  background: rgba(255,255,255,.92);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid rgba(222,214,207,.72);
}
.header-inner {
  min-height: 94px;
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 30px;
}
.brand {
  display: flex;
  align-items: center;
  gap: 17px;
  text-decoration: none;
  color: var(--ink);
  white-space: nowrap;
}
.brand > img { width: 36px; height: 36px; object-fit: contain; }
.brand-mark {
  width: 58px;
  height: 58px;
  background: transparent;
  display: grid;
  place-items: center;
  overflow: hidden;
  flex: 0 0 auto;
}
.brand-mark img {
  width: 49px;
  height: 49px;
  object-fit: contain;
  object-position: 50% 12%;
}
.brand-copy {
  display: grid;
  gap: 7px;
  line-height: 1;
}
.brand-name {
  font-family: var(--serif);
  font-weight: 800;
  font-size: 22px;
  letter-spacing: .04em;
}
.brand-en {
  font: 700 13px/1 var(--mono);
  letter-spacing: .3em;
  color: var(--accent);
}
.nav { display: flex; justify-content: center; gap: 18px; font-size: 14px; font-weight: 600; }
.nav a { text-decoration: none; color: var(--text); }
.nav a:hover, .nav a[aria-current="page"] { color: var(--accent); }
.header-actions { display: flex; align-items: center; gap: 12px; }
.header-actions .btn { min-height: 68px; padding-inline: 30px; font-size: 16px; font-weight: 600; }
.menu-btn { display: none; width: 42px; height: 42px; border: 1px solid var(--line); background: var(--white); color: var(--ink); }
.menu-btn:not([aria-controls]) { display: none !important; }
.drawer {
  display: none;
  position: fixed;
  inset: 94px 0 auto;
  background: var(--white);
  border-bottom: 1px solid var(--line);
  padding: 20px 24px 28px;
  z-index: 49;
}
.drawer.is-open { display: block; }
.drawer a { display: block; padding: 14px 0; text-decoration: none; border-bottom: 1px solid var(--line); font-weight: 700; }

.hero-stack { background: #130f0d; color: var(--white); position: relative; }
.stack-card {
  position: sticky;
  top: 78px;
  min-height: calc(100vh - 78px);
  display: grid;
  align-items: center;
  overflow: hidden;
  padding: 80px 0;
  box-shadow: 0 -30px 70px rgba(0,0,0,.28);
}
.stack-card .wide { position: relative; z-index: 2; }
.stack-card--problem { background: linear-gradient(135deg, #211714 0%, #130f0d 78%); z-index: 1; }
.stack-card--promise { background: var(--paper); color: var(--ink); z-index: 2; }
.stack-card--proof { background: linear-gradient(140deg, #1f1512 0%, #0f0b0a 100%); z-index: 3; }
.hero-grid { display: grid; grid-template-columns: .9fr 1.1fr; gap: 56px; align-items: center; }
.hero-label { color: var(--accent); display: inline-flex; gap: 14px; align-items: center; margin-bottom: 22px; }
.hero-label::before { content: ""; width: 48px; height: 1px; background: currentColor; }
.hero-title {
  font-family: var(--serif);
  font-size: clamp(40px, 6.6vw, 88px);
  line-height: 1.25;
  margin: 0;
  font-weight: 700;
  letter-spacing: 0;
}
.hero-copy { margin-top: 24px; color: rgba(255,255,255,.72); max-width: 38em; }
.stack-card--promise .hero-copy { color: var(--muted); }
.hero-visual { position: relative; }
.hero-visual img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  border: 1px solid rgba(255,255,255,.18);
  box-shadow: var(--shadow);
}
.hero-panel {
  display: grid;
  gap: 12px;
  margin-top: 32px;
  max-width: 680px;
}
.hero-panel div {
  border-top: 1px solid rgba(36,24,21,.2);
  padding-top: 14px;
  font-weight: 800;
}
.hero-panel small { display: block; color: var(--accent); font: 700 11px/1 var(--mono); letter-spacing: .18em; margin-bottom: 6px; }
.hero-proof {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 44px;
  align-items: center;
}
.proof-number { font: 700 clamp(96px, 16vw, 210px)/.85 var(--mono); color: var(--accent); letter-spacing: -.03em; }
.proof-number span { font-size: .22em; color: rgba(255,255,255,.7); letter-spacing: 0; }
.hero-actions { display: flex; gap: 14px; flex-wrap: wrap; margin-top: 34px; }
.scroll-hint {
  position: fixed;
  right: 28px;
  bottom: 28px;
  z-index: 20;
  writing-mode: vertical-rl;
  color: rgba(255,255,255,.55);
  font: 700 10px/1 var(--mono);
  letter-spacing: .28em;
  mix-blend-mode: difference;
}

.intro-band { background: var(--white); }
.intro-layout { display: grid; grid-template-columns: .85fr 1.15fr; gap: 64px; align-items: start; }
.intro-big {
  font-family: var(--serif);
  font-size: clamp(34px, 4vw, 54px);
  line-height: 1.5;
  color: var(--ink);
}
.intro-text { display: grid; gap: 18px; color: var(--text); }
.intro-text p:first-child { font-weight: 700; color: var(--ink); }

.service-grid { display: grid; grid-template-columns: repeat(4, 1fr); grid-auto-rows: 210px; gap: 14px; }
.service-tile {
  position: relative;
  overflow: hidden;
  background: var(--white);
  border: 1px solid var(--line);
  text-decoration: none;
  color: var(--white);
}
.service-tile--big { grid-column: span 2; grid-row: span 2; }
.service-tile--wide { grid-column: span 2; }
.service-tile img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; transition: transform .8s ease; }
.service-tile:hover img { transform: scale(1.06); }
.service-tile::after { content: ""; position: absolute; inset: 0; background: linear-gradient(180deg, rgba(36,24,21,.05), rgba(36,24,21,.78)); }
.service-tile__body { position: absolute; inset: auto 20px 20px; z-index: 1; }
.service-tile__body small { color: #ecd1b6; font: 700 11px/1 var(--mono); letter-spacing: .18em; }
.service-tile__body h3 { font-family: var(--serif); font-size: 22px; margin: 8px 0; line-height: 1.4; }
.service-tile__body p { font-size: 13px; color: rgba(255,255,255,.82); max-width: 30em; }
.service-note { background: var(--ink); color: var(--white); display: grid; place-items: center; padding: 24px; border: 1px solid var(--ink); }
.service-note p { font-family: var(--serif); font-size: 18px; line-height: 2; }

.reason-layout { display: grid; grid-template-columns: .82fr 1.18fr; gap: 64px; align-items: start; }
.reason-side { position: sticky; top: 110px; }
.reason-list { border-top: 1px solid var(--ink); }
.reason-item { display: grid; grid-template-columns: auto 1fr; gap: 28px; padding: 38px 0; border-bottom: 1px solid var(--line); }
.reason-num { font-family: var(--serif); font-size: clamp(54px, 7vw, 90px); line-height: .85; color: transparent; -webkit-text-stroke: 1.2px var(--accent); }
.reason-item h3 { font-family: var(--serif); font-size: 25px; margin: 0 0 10px; color: var(--ink); }
.reason-item p { color: var(--muted); }

.offer { background: var(--ink); color: var(--white); overflow: hidden; }
.offer::before { content: ""; position: absolute; inset: 0; background: url("../../src/section-bg-2.jpg") center/cover; opacity: .42; }
.offer .container { position: relative; z-index: 1; }
.offer-card { max-width: 780px; padding: 72px 0; }
.offer-card h2 { color: var(--white); }
.offer-card p { color: rgba(255,255,255,.78); margin-top: 18px; }

.process { background: var(--white); }
.process-flow { position: relative; max-width: 940px; margin: 0 auto; }
.process-flow::before { content: ""; position: absolute; left: 50%; top: 0; bottom: 0; width: 1px; background: var(--line); }
.process-step { position: relative; display: grid; grid-template-columns: 1fr 1fr; gap: 42px; align-items: center; padding: 30px 0; }
.process-step:nth-child(even) .process-num { order: 2; text-align: left; }
.process-step:nth-child(even) .process-body { order: 1; text-align: right; }
.process-num { font-family: var(--serif); font-size: clamp(72px, 11vw, 132px); line-height: .8; color: transparent; -webkit-text-stroke: 1.5px rgba(183,138,98,.65); text-align: right; }
.process-body { background: var(--white); border: 1px solid var(--line); padding: 26px; box-shadow: 0 12px 40px rgba(36,24,21,.06); }
.process-body h3 { margin: 0 0 8px; font-family: var(--serif); font-size: 23px; }
.process-body p { color: var(--muted); font-size: 15px; }

.case-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.case-card { background: var(--white); border: 1px solid var(--line); }
.case-card img { width: 100%; aspect-ratio: 4/3; object-fit: cover; }
.case-card div { padding: 22px; }
.case-card small { color: var(--accent); font: 700 11px/1 var(--mono); letter-spacing: .16em; }
.case-card h3 { margin: 9px 0 8px; font-family: var(--serif); font-size: 21px; }
.case-card p { color: var(--muted); font-size: 14px; }

.voices { background: var(--white); }
.voice-layout { display: grid; grid-template-columns: .9fr 1.1fr; gap: 48px; align-items: center; }
.voice-photo img { width: 100%; aspect-ratio: 4/3; object-fit: cover; }
.quote-list { display: grid; gap: 16px; }
.quote { border-left: 3px solid var(--accent); padding: 12px 0 12px 20px; font-family: var(--serif); color: var(--ink); }

.faq-list { border-top: 1px solid var(--ink); }
.faq-item { border-bottom: 1px solid var(--line); }
.faq-item summary { cursor: pointer; padding: 22px 0; font-weight: 800; color: var(--ink); list-style: none; }
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item p { padding: 0 0 24px; color: var(--muted); max-width: 68em; }

.message-spread { display: grid; grid-template-columns: 340px 1fr; gap: 64px; align-items: start; }
.message-photo img { width: 100%; aspect-ratio: 4/5; object-fit: cover; }
.message-body {
  background: var(--white);
  border: 1px solid var(--line);
  padding: clamp(30px, 5vw, 60px);
  box-shadow: var(--shadow);
}
.message-body h2 { margin-top: 0; }
.message-body p { margin-bottom: 18px; }
.drop { float: left; font-family: var(--serif); font-size: 86px; line-height: .75; margin: 10px 16px 0 0; color: var(--accent); }

.company { background: var(--white); }
.company-layout { display: grid; grid-template-columns: 1fr .85fr; gap: 56px; align-items: center; }
.info-table { border-top: 1px solid var(--ink); }
.info-row { display: grid; grid-template-columns: 150px 1fr; gap: 20px; padding: 16px 0; border-bottom: 1px solid var(--line); }
.info-row dt { font-weight: 800; color: var(--ink); }
.info-row dd { margin: 0; color: var(--muted); }
.company-img img { width: 100%; aspect-ratio: 4/3; object-fit: cover; }

.news-list { border-top: 1px solid var(--line); }
.news-item { display: grid; grid-template-columns: 120px 1fr auto; gap: 20px; padding: 20px 0; border-bottom: 1px solid var(--line); align-items: center; text-decoration: none; }
.news-date { font: 700 12px/1 var(--mono); color: var(--accent); }
.news-title { font-weight: 800; }

.final-cta {
  position: relative;
  color: var(--white);
  background: var(--ink);
  overflow: hidden;
  padding: 86px 0;
}
.final-cta::before { content: ""; position: absolute; inset: 0; background: url("../../src/section-bg-2.jpg") center/cover; opacity: .62; }
.final-cta .container { position: relative; z-index: 1; display: grid; grid-template-columns: 1fr auto; gap: 38px; align-items: center; }
.final-cta h2 { margin: 0; color: var(--white); }
.final-cta p { color: rgba(255,255,255,.78); margin-top: 14px; }

.site-footer { background: var(--white); color: var(--ink); padding: 72px 0 34px; border-top: 1px solid var(--line); position: relative; overflow: hidden; }
.site-footer::before { content: ""; position: absolute; inset: 0 0 auto; height: 6px; background: linear-gradient(90deg, var(--accent), rgba(183,138,98,.14) 44%, transparent); }
.footer-grid { display: grid; grid-template-columns: minmax(320px, .85fr) 1.15fr; gap: 54px; align-items: start; }
.site-footer .brand { color: var(--ink); margin-bottom: 18px; }
.footer-nap { color: var(--muted); font-size: 13px; line-height: 1.8; }
.footer-links { display: flex; gap: 18px 26px; flex-wrap: wrap; justify-content: flex-end; align-items: flex-start; padding-top: 8px; }
.footer-links a { position: relative; text-decoration: none; font-weight: 800; color: var(--ink); font-size: 13px; line-height: 1.5; }
.footer-links a::after { content: ""; position: absolute; left: 0; right: 0; bottom: -6px; height: 1px; background: var(--accent); transform: scaleX(0); transform-origin: left; transition: transform .22s ease; }
.footer-links a:hover::after { transform: scaleX(1); }
.footer-bottom { margin-top: 52px; padding-top: 22px; border-top: 1px solid var(--line); display: flex; justify-content: space-between; gap: 20px; color: var(--muted); font: 700 11px/1 var(--mono); letter-spacing: .08em; }

.page-hero {
  background: var(--white);
  padding: 88px 0 70px;
  border-bottom: 1px solid var(--line);
}
.page-hero h1 { font-family: var(--serif); font-size: clamp(36px, 5vw, 62px); margin: 12px 0 10px; line-height: 1.28; color: var(--ink); }
.page-hero p { color: var(--muted); max-width: 48em; }
.sub-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 22px; }
.sub-card { background: var(--white); border: 1px solid var(--line); padding: 28px; }
.sub-card img { margin-bottom: 20px; width: 100%; aspect-ratio: 16/9; object-fit: cover; }
.sub-card h2, .sub-card h3 { font-family: var(--serif); margin: 0 0 10px; color: var(--ink); }
.sub-card p, .sub-card li { color: var(--muted); }
.contact-slot { background: var(--white); border: 1px solid var(--line); padding: 34px; }
.privacy-content { background: var(--white); border: 1px solid var(--line); padding: clamp(28px, 5vw, 58px); }
.privacy-content h2 { font-family: var(--serif); margin: 32px 0 8px; }

.js-fade { opacity: 1; transform: none; }
.j .js-fade { opacity: 0; transform: translateY(22px); }

@media (max-width: 980px) {
  .nav, .header-actions .btn { display: none; }
  .menu-btn { display: inline-grid; place-items: center; }
  .header-inner { grid-template-columns: auto 1fr auto; }
  .hero-grid, .intro-layout, .reason-layout, .voice-layout, .message-spread, .company-layout, .final-cta .container { grid-template-columns: 1fr; }
  .reason-side { position: static; }
  .service-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr; }
  .footer-links { justify-content: flex-start; }
}
@media (max-width: 768px) {
  :root { --header-h: 66px; }
  .container, .wide { width: min(100% - 32px, 1120px); }
  .section { padding: 72px 0; }
  .section-head { display: block; }
  .stack-card { top: 66px; min-height: calc(100vh - 66px); padding: 64px 0; }
  .header-inner { height: 66px; }
  .drawer { inset: 66px 0 auto; }
  .brand > img { width: 32px; height: 32px; }
  .brand-mark { width: 38px; height: 38px; }
  .brand-mark img { width: 32px; height: 32px; }
  .brand-name { font-size: 15px; }
  .brand-en { font-size: 9px; letter-spacing: .22em; }
  .hero-title { font-size: clamp(34px, 11vw, 48px); }
  .hero-proof { grid-template-columns: 1fr; gap: 20px; }
  .scroll-hint { display: none; }
  .service-grid { grid-auto-rows: 178px; }
  .service-tile--big, .service-tile--wide { grid-column: span 2; }
  .reason-item { grid-template-columns: 1fr; }
  .process-flow::before { left: 18px; }
  .process-step, .process-step:nth-child(even) { grid-template-columns: 1fr; padding-left: 48px; gap: 8px; }
  .process-step:nth-child(even) .process-num, .process-step:nth-child(even) .process-body { order: initial; text-align: left; }
  .process-num { text-align: left; font-size: 64px; }
  .case-grid, .sub-grid { grid-template-columns: 1fr; }
  .info-row { grid-template-columns: 1fr; gap: 4px; }
  .news-item { grid-template-columns: 1fr; }
  .site-footer { padding-top: 58px; }
  .footer-links { display: grid; grid-template-columns: 1fr 1fr; gap: 16px 18px; }
  .footer-bottom { display: grid; }
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: .001ms !important; transition-duration: .001ms !important; scroll-behavior: auto !important; }
}