:root {
  color-scheme: light;
  --ink: #17201c;
  --muted: #64716b;
  --line: #dce2dd;
  --paper: #f6f7f4;
  --white: #ffffff;
  --forest: #13533c;
  --mint: #20b86d;
  --gold: #ac8642;
  --coal: #111816;
  --shadow: 0 24px 70px rgba(17, 24, 22, 0.14);
  font-family: Inter, "Noto Sans JP", "Noto Sans SC", "Helvetica Neue", Arial, sans-serif;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; color: var(--ink); background: var(--paper); }
a { color: inherit; text-decoration: none; }
.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  display: grid;
  grid-template-columns: minmax(230px, 1fr) auto auto;
  align-items: center;
  gap: 24px;
  padding: 18px clamp(18px, 4vw, 56px);
  background: rgba(246, 247, 244, 0.94);
  border-bottom: 1px solid rgba(220, 226, 221, 0.9);
  backdrop-filter: blur(18px);
}
.brand { display: inline-flex; align-items: center; gap: 12px; min-width: 0; }
.brand-mark { display: grid; width: 42px; height: 42px; place-items: center; color: var(--white); background: var(--forest); border-radius: 6px; font-weight: 900; }
.brand-mark.image-mark { overflow: hidden; background: var(--white); border: 1px solid var(--line); }
.brand-mark img { width: 100%; height: 100%; object-fit: cover; }
.brand strong, .brand small { display: block; }
.brand strong { font-size: 15px; line-height: 1.2; }
.brand small { margin-top: 3px; color: var(--muted); font-size: 12px; }
.nav { display: flex; gap: 22px; color: var(--muted); font-size: 14px; }
.nav a:hover { color: var(--forest); }
.lang-switch { display: flex; padding: 4px; background: var(--white); border: 1px solid var(--line); border-radius: 999px; }
.lang-switch a { min-width: 58px; border-radius: 999px; padding: 8px 11px; color: var(--muted); font-size: 13px; text-align: center; }
.lang-switch a.is-active { color: var(--white); background: var(--forest); }
.hero { position: relative; display: grid; align-items: end; padding: 112px clamp(22px, 6vw, 76px) 72px; overflow: hidden; }
.industrial-hero {
  min-height: 72vh;
  background:
    linear-gradient(90deg, rgba(255, 255, 255, 0.98), rgba(255, 255, 255, 0.74)),
    url("/assets/hero-tokyo-concierge-optimized.jpg") center/cover;
}
.hero-content { position: relative; max-width: 900px; color: var(--ink); }
.eyebrow, .section-kicker { margin: 0 0 14px; color: var(--forest); font-size: 12px; font-weight: 900; letter-spacing: 0.08em; text-transform: uppercase; }
h1, h2, h3, p { overflow-wrap: anywhere; }
h1 { max-width: 900px; margin: 0; color: var(--forest); font-size: clamp(42px, 6vw, 78px); line-height: 1.04; letter-spacing: 0; }
.hero-copy { max-width: 760px; margin: 24px 0 0; color: var(--ink); font-size: clamp(17px, 2vw, 21px); line-height: 1.85; font-weight: 800; }
.hero-actions, .contact-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 30px; }
.btn { display: inline-flex; min-height: 48px; align-items: center; justify-content: center; gap: 12px; border-radius: 6px; padding: 13px 20px; font-weight: 900; }
.btn.primary { color: var(--white); background: var(--mint); box-shadow: 0 18px 36px rgba(32, 184, 109, 0.24); }
.btn.secondary { color: var(--ink); background: var(--white); border: 1px solid var(--line); }
.trust-row { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 24px; }
.trust-row span { padding: 8px 12px; color: var(--forest); border: 1px solid rgba(19, 83, 60, 0.18); border-radius: 999px; background: rgba(19, 83, 60, 0.08); font-weight: 900; }
.section, .section-band { padding: 88px clamp(22px, 6vw, 76px); }
.section-band { background: var(--white); }
.section-inner, .section-heading { max-width: 1180px; margin: 0 auto; }
.split { display: grid; grid-template-columns: minmax(0, 0.95fr) minmax(0, 1.05fr); gap: clamp(28px, 6vw, 80px); align-items: start; }
.section h2, .section-band h2 { margin: 0; font-size: clamp(30px, 4vw, 48px); line-height: 1.16; letter-spacing: 0; }
.intro p:not(.section-kicker), .split > p, .contact-section p, .section-heading p { margin: 0; color: var(--muted); font-size: 17px; line-height: 1.9; }
.service-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 16px; max-width: 1180px; margin: 36px auto 0; }
.service-card, .detail-grid article { min-height: 250px; padding: 28px; background: var(--white); border: 1px solid var(--line); border-radius: 8px; box-shadow: 0 14px 36px rgba(17, 24, 22, 0.05); }
.service-card { overflow: hidden; padding: 0; }
.service-card .card-number, .service-card h3, .service-card p, .service-card .text-action { margin-left: 24px; margin-right: 24px; }
.service-card .text-action { margin-bottom: 24px; }
.card-photo, .card-photo img { display: block; width: 100%; height: 210px; }
.card-photo img { object-fit: cover; }
.service-card h3, .detail-grid h2 { margin: 18px 0 12px; font-size: 22px; }
.service-card p, .detail-grid p, .customer-steps span, details p { color: var(--muted); line-height: 1.75; }
.card-number { color: var(--gold); font-weight: 900; font-size: 12px; text-transform: uppercase; }
.text-action { display: inline-flex; margin-top: 16px; color: var(--forest); font-weight: 900; }
.detail-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 16px; max-width: 1180px; margin: 0 auto; }
.industrial-wide-photo {
  display: block;
  max-width: 1180px;
  margin: 0 auto 34px;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 8px;
  box-shadow: var(--shadow);
}
.industrial-wide-photo img {
  display: block;
  width: 100%;
  height: min(48vw, 540px);
  object-fit: cover;
}
.customer-steps { display: grid; grid-template-columns: repeat(5, minmax(0, 1fr)); gap: 12px; margin: 34px 0 0; padding: 0; list-style: none; counter-reset: steps; }
.customer-steps li { min-height: 170px; padding: 22px; background: #fbfaf6; border: 1px solid var(--line); border-radius: 8px; }
.customer-steps li::before { counter-increment: steps; content: counter(steps, decimal-leading-zero); display: block; margin-bottom: 22px; color: var(--gold); font-weight: 900; }
.customer-steps strong, .customer-steps span { display: block; }
.customer-steps strong { margin-bottom: 8px; }
.image-suggestions, .related-links { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 26px; }
.image-suggestions span, .related-links a { padding: 10px 14px; border: 1px solid var(--line); border-radius: 999px; background: #fbfaf6; color: var(--forest); font-weight: 900; }
.faq-list { display: grid; gap: 12px; max-width: 980px; margin: 34px auto 0; }
details { padding: 20px 22px; border: 1px solid var(--line); border-radius: 8px; background: var(--white); }
summary { cursor: pointer; font-weight: 900; color: var(--forest); }
.industrial-gallery {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
  max-width: 1180px;
  margin: 34px auto 0;
}
.industrial-gallery figure {
  overflow: hidden;
  margin: 0;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--white);
}
.industrial-gallery img {
  display: block;
  width: 100%;
  height: 240px;
  object-fit: cover;
}
.industrial-gallery figcaption {
  padding: 12px 14px;
  color: var(--muted);
  font-size: 14px;
  font-weight: 800;
}
.english-block { background: var(--paper); }
.contact-panel { max-width: 1180px; margin: 0 auto; padding: clamp(28px, 5vw, 56px); background: var(--white); border: 1px solid var(--line); border-radius: 8px; box-shadow: var(--shadow); }
.contact-panel h2 { margin: 0 0 18px; font-size: clamp(32px, 4.8vw, 56px); line-height: 1.12; }
.site-footer { display: flex; justify-content: space-between; gap: 20px; padding: 30px clamp(22px, 6vw, 76px) 96px; color: rgba(255, 255, 255, 0.72); background: var(--coal); }
.site-footer p { margin: 0; }
.sticky-contact { position: fixed; left: 50%; bottom: 18px; z-index: 30; display: none; width: min(calc(100% - 32px), 420px); transform: translateX(-50%); overflow: hidden; border-radius: 8px; box-shadow: 0 16px 42px rgba(17, 24, 22, 0.22); }
.sticky-contact a { flex: 1; padding: 15px; text-align: center; font-weight: 900; color: var(--white); }
.sticky-contact a:first-child { background: var(--forest); }
.sticky-contact a:last-child { background: var(--mint); }
@media (max-width: 980px) {
  .site-header { grid-template-columns: 1fr auto; }
  .nav { grid-column: 1 / -1; flex-wrap: wrap; gap: 12px; }
  .split, .detail-grid { grid-template-columns: 1fr; }
  .service-grid, .customer-steps, .industrial-gallery { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (max-width: 640px) {
  .site-header { grid-template-columns: 1fr; gap: 12px; padding: 14px 16px; }
  .lang-switch { width: 100%; }
  .lang-switch a { flex: 1; min-width: 0; }
  .industrial-hero { min-height: auto; padding: 56px 20px 48px; }
  h1 { font-size: 38px; }
  .section, .section-band { padding: 62px 20px; }
  .service-grid, .customer-steps, .industrial-gallery { grid-template-columns: 1fr; }
  .service-card, .customer-steps li { min-height: auto; }
  .btn { width: 100%; }
  .site-footer { display: block; padding-bottom: 92px; }
  .site-footer p + p { margin-top: 8px; }
  .sticky-contact { display: flex; }
}