:root {
  --color-factory-navy: #002855;
  --color-sasagawa-blue: #164272;
  --color-steel-ink: #1f2933;
  --color-machined-gray: #e7ebef;
  --color-cool-panel: #f5f8fb;
  --color-paper-white: #ffffff;
  --color-precision-teal: #0f8b8d;
  --color-proof-gold: #b88a2d;
  --color-line-blue-gray: #c6d2df;
  --font-heading: "Yu Mincho", "Hiragino Mincho ProN", serif;
  --font-body: "Hiragino Kaku Gothic ProN", "Yu Gothic", Meiryo, sans-serif;
}

* { box-sizing: border-box; }
body {
  margin: 0;
  color: var(--color-steel-ink);
  font-family: var(--font-body);
  line-height: 1.8;
  background: var(--color-paper-white);
}
a { color: inherit; text-decoration: none; }
img { max-width: 100%; height: auto; display: block; }
main { overflow: hidden; }

.site-header {
  min-height: 86px;
  padding: 14px clamp(20px, 5vw, 72px);
  display: grid;
  grid-template-columns: minmax(260px, 1fr) auto auto;
  gap: 28px;
  align-items: center;
  background: rgba(255,255,255,.96);
  border-bottom: 1px solid var(--color-line-blue-gray);
  position: sticky;
  top: 0;
  z-index: 20;
}
.brand { display: inline-flex; gap: 12px; align-items: center; min-width: 0; }
.brand img { width: 48px; height: 48px; object-fit: contain; }
.brand strong { display: block; color: var(--color-factory-navy); font-family: var(--font-heading); font-size: 20px; line-height: 1.2; }
.brand small { display: block; color: #657181; font-size: 11px; line-height: 1.3; }
.site-header nav { display: flex; gap: 18px; font-size: 14px; font-weight: 700; white-space: nowrap; }
.site-header nav a { padding-block: 8px; border-bottom: 2px solid transparent; }
.site-header nav a:hover { border-color: var(--color-sasagawa-blue); }
.header-tel {
  min-width: 156px;
  padding: 9px 14px;
  background: var(--color-factory-navy);
  color: white;
  text-align: center;
  font-weight: 700;
}
.header-tel small { display: block; font-size: 10px; font-weight: 500; }

.hero {
  position: relative;
  min-height: 680px;
  display: grid;
  align-items: center;
  padding: 120px clamp(20px, 7vw, 96px);
  color: white;
  background: var(--color-factory-navy);
}
.hero-bg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, rgba(0,40,85,.96), rgba(0,40,85,.68) 42%, rgba(0,0,0,.22));
}
.hero-content { position: relative; z-index: 1; max-width: 720px; }
.eyebrow {
  margin: 0 0 12px;
  color: var(--color-precision-teal);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: .12em;
  text-transform: uppercase;
}
.hero .eyebrow, .cta-band .eyebrow { color: #9ed5d4; }
h1, h2, h3, p { overflow-wrap: anywhere; }
.hero h1, .page-hero h1 {
  margin: 0;
  font-family: var(--font-heading);
  font-size: clamp(38px, 6vw, 76px);
  line-height: 1.18;
  letter-spacing: .06em;
}
.hero p { max-width: 680px; font-size: 20px; }
.hero-proof {
  position: absolute;
  right: clamp(20px, 6vw, 92px);
  bottom: 44px;
  z-index: 2;
  display: grid;
  grid-template-columns: repeat(3, minmax(120px, 1fr));
  background: rgba(255,255,255,.94);
  color: var(--color-factory-navy);
  border: 1px solid rgba(255,255,255,.8);
}
.hero-proof span { padding: 20px 22px; font-weight: 800; border-left: 1px solid var(--color-line-blue-gray); text-align: center; }
.hero-proof span:first-child { border-left: 0; }

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 52px;
  padding: 0 24px;
  border: 1px solid currentColor;
  font-weight: 800;
  line-height: 1.3;
}
.button.primary { background: var(--color-proof-gold); color: white; border-color: var(--color-proof-gold); }
.button.ghost { color: white; border-color: rgba(255,255,255,.78); }
.button.ghost-dark { color: var(--color-factory-navy); border-color: var(--color-sasagawa-blue); background: white; }
.actions { display: flex; gap: 14px; flex-wrap: wrap; margin-top: 28px; }

.page-hero {
  padding: 112px clamp(20px, 7vw, 96px) 86px;
  color: white;
  background:
    linear-gradient(135deg, rgba(0,40,85,.96), rgba(22,66,114,.9)),
    var(--color-factory-navy);
}
.page-hero p:last-child { max-width: 760px; font-size: 18px; }

.section-title, .card-grid, .split, .proof-grid, .table-section, .timeline, .access-block, .lead-section, .equipment-grid, .contact-layout, .form-panel, .thanks-panel, .article {
  width: min(1180px, calc(100% - 40px));
  margin-inline: auto;
}
.section-title { margin-top: 96px; margin-bottom: 36px; position: relative; }
.section-title span {
  display: block;
  color: var(--color-line-blue-gray);
  font-family: Georgia, serif;
  font-size: clamp(52px, 9vw, 126px);
  line-height: .8;
  letter-spacing: .05em;
}
.section-title h2 {
  margin: -18px 0 0;
  color: var(--color-factory-navy);
  font-family: var(--font-heading);
  font-size: clamp(28px, 4vw, 42px);
  letter-spacing: .05em;
  border-bottom: 3px solid var(--color-sasagawa-blue);
  padding-bottom: 14px;
}
.section-title.compact { margin-top: 0; margin-bottom: 24px; }
.section-title.compact span { font-size: 54px; }
.section-title.compact h2 { font-size: 30px; }

.card-grid, .equipment-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 18px;
  margin-bottom: 96px;
}
.card-grid article, .equipment-grid article {
  padding: 28px;
  background: white;
  border: 1px solid var(--color-line-blue-gray);
}
.card-grid h2, .equipment-grid h2 { margin: 0 0 14px; color: var(--color-factory-navy); font-size: 21px; line-height: 1.45; }
.equipment-grid img { width: 100%; aspect-ratio: 3 / 2; object-fit: cover; margin-bottom: 16px; }
.equipment-grid strong { color: var(--color-sasagawa-blue); }

.split {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(300px, .9fr);
  gap: 48px;
  align-items: center;
  margin-block: 90px;
}
.proof-band { background: var(--color-cool-panel); padding: 54px; }
.content-image, .split figure img { width: 100%; border: 1px solid var(--color-line-blue-gray); object-fit: cover; }
figcaption { font-size: 12px; color: #637083; margin-top: 8px; }
.check-list, .columns-list { padding: 0; margin: 24px 0 0; list-style: none; display: grid; gap: 10px; }
.check-list li, .columns-list li { padding-left: 20px; border-left: 4px solid var(--color-precision-teal); }
.columns-list { grid-template-columns: repeat(3, 1fr); }

.proof-grid {
  display: grid;
  grid-template-columns: .85fr 1.15fr;
  gap: 24px;
  margin-block: 96px;
}
.proof-grid article { padding: 30px; background: var(--color-cool-panel); border: 1px solid var(--color-line-blue-gray); }
.proof-grid img { max-height: 220px; width: 100%; object-fit: contain; margin-bottom: 22px; }
.proof-grid article:first-child img { width: 220px; max-width: 100%; margin-inline: auto; }
.proof-grid article:nth-child(2) img { object-fit: cover; }

.table-section, .timeline, .lead-section, .access-block, .article, .thanks-panel {
  margin-block: 80px;
}
table { width: 100%; border-collapse: collapse; background: white; border: 1px solid var(--color-line-blue-gray); }
th, td { padding: 18px 20px; border-top: 1px solid var(--color-line-blue-gray); vertical-align: top; }
th { width: 220px; background: var(--color-cool-panel); color: var(--color-factory-navy); font-weight: 800; }
.timeline article {
  display: grid;
  grid-template-columns: 190px 1fr;
  gap: 24px;
  padding: 18px 0;
  border-bottom: 1px solid var(--color-line-blue-gray);
}
.timeline time { color: var(--color-sasagawa-blue); font-weight: 800; }
.tag-list { display: flex; flex-wrap: wrap; gap: 10px; padding: 0; list-style: none; }
.tag-list li { padding: 8px 14px; background: var(--color-cool-panel); border: 1px solid var(--color-line-blue-gray); font-weight: 700; }

.feature-list { width: min(1180px, calc(100% - 40px)); margin: 80px auto; display: grid; gap: 22px; }
.feature-list article {
  display: grid;
  grid-template-columns: 74px 1fr 230px;
  gap: 24px;
  align-items: center;
  padding: 24px;
  background: white;
  border: 1px solid var(--color-line-blue-gray);
}
.feature-list .number { color: var(--color-proof-gold); font-size: 34px; font-weight: 800; }
.feature-list h2 { margin: 0 0 8px; color: var(--color-factory-navy); }
.feature-list p { margin: 0; }
.feature-list img { width: 230px; aspect-ratio: 3 / 2; object-fit: cover; }

.contact-layout {
  display: grid;
  grid-template-columns: minmax(280px, .8fr) minmax(360px, 1.2fr);
  gap: 48px;
  margin-block: 80px;
}
.phone-panel { margin-top: 30px; padding: 24px; color: white; background: var(--color-factory-navy); }
.phone-panel span, .phone-panel small { display: block; }
.phone-panel a { display: block; font-size: 32px; font-weight: 800; line-height: 1.2; margin: 8px 0; }
.form-panel {
  padding: 34px;
  background: var(--color-cool-panel);
  border: 1px solid var(--color-line-blue-gray);
}
.form-panel label { display: grid; gap: 8px; margin-bottom: 18px; font-weight: 800; }
.form-panel em { margin-left: 8px; color: #b22; font-size: 12px; font-style: normal; }
input, textarea {
  width: 100%;
  border: 1px solid var(--color-line-blue-gray);
  background: white;
  padding: 12px 14px;
  font: inherit;
}
.check-row { display: flex; gap: 14px; flex-wrap: wrap; }
.check-row label { display: inline-flex; grid-template-columns: auto 1fr; align-items: center; gap: 8px; margin: 0; font-weight: 500; }
.check-row input { width: auto; }
.confirm-values { display: grid; gap: 12px; }
.confirm-values dl { display: grid; grid-template-columns: 190px 1fr; margin: 0; padding: 12px; background: white; border: 1px solid var(--color-line-blue-gray); }
.confirm-values dt { font-weight: 800; color: var(--color-factory-navy); }
.form-actions { display: flex; gap: 14px; flex-wrap: wrap; margin-top: 28px; }
.thanks-panel { padding: 54px; background: var(--color-cool-panel); border: 1px solid var(--color-line-blue-gray); }
.article { max-width: 820px; }

.cta-band {
  margin-top: 110px;
  padding: 64px clamp(20px, 7vw, 96px);
  color: white;
  background: linear-gradient(135deg, var(--color-factory-navy), var(--color-sasagawa-blue));
  display: flex;
  justify-content: space-between;
  gap: 32px;
  align-items: center;
}
.cta-band h2 { max-width: 720px; margin: 0; font-family: var(--font-heading); font-size: clamp(28px, 4vw, 44px); }
.site-footer {
  padding: 44px clamp(20px, 7vw, 96px);
  color: white;
  background: #061b36;
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 28px;
}
.footer-brand { font-family: var(--font-heading); font-size: 24px; margin: 0 0 12px; }
.site-footer nav { display: flex; flex-wrap: wrap; gap: 12px 20px; align-content: start; }
.copyright { grid-column: 1 / -1; color: #b9c6d4; font-size: 12px; margin: 0; }

@media (max-width: 980px) {
  .site-header { grid-template-columns: 1fr; gap: 12px; position: static; }
  .site-header nav { overflow-x: auto; padding-bottom: 4px; }
  .header-tel { width: fit-content; }
  .hero { min-height: 620px; padding-top: 80px; }
  .hero-proof { position: relative; right: auto; bottom: auto; margin-top: 38px; grid-template-columns: 1fr; width: min(520px, 100%); }
  .hero-proof span { border-left: 0; border-top: 1px solid var(--color-line-blue-gray); }
  .card-grid, .equipment-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .split, .proof-grid, .contact-layout, .site-footer { grid-template-columns: 1fr; }
  .feature-list article { grid-template-columns: 52px 1fr; }
  .feature-list img { grid-column: 2; width: 100%; max-width: 420px; }
  .columns-list { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 620px) {
  .brand strong { font-size: 17px; }
  .site-header nav { display: grid; grid-template-columns: 1fr 1fr; white-space: normal; }
  .hero, .page-hero { padding-inline: 20px; }
  .hero h1, .page-hero h1 { font-size: 36px; }
  .hero p { font-size: 16px; }
  .actions, .cta-band { align-items: stretch; }
  .button { width: 100%; }
  .card-grid, .equipment-grid, .columns-list { grid-template-columns: 1fr; }
  th, td { display: block; width: 100%; }
  .timeline article { grid-template-columns: 1fr; gap: 4px; }
  .feature-list article { grid-template-columns: 1fr; }
  .feature-list img { grid-column: auto; }
  .confirm-values dl { grid-template-columns: 1fr; }
  .proof-band, .form-panel, .thanks-panel { padding: 24px; }
}