:root {
  --color-blueprint-blue: #005bac;
  --color-deep-blueprint: #003f7d;
  --color-precision-cyan: #00a6d6;
  --color-signal-red: #c9222a;
  --color-ink: #243040;
  --color-steel: #6d7785;
  --color-panel: #f4f7fb;
  --color-paper: #ffffff;
  --color-line: #dce5ef;
  --font-main: -apple-system, BlinkMacSystemFont, "Hiragino Kaku Gothic ProN", "Yu Gothic", Meiryo, sans-serif;
  --font-accent: Arial, sans-serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--color-ink);
  background: var(--color-paper);
  font-family: var(--font-main);
  line-height: 1.8;
  letter-spacing: 0;
}
a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; height: auto; }

.site-header { background: var(--color-paper); position: sticky; top: 0; z-index: 10; box-shadow: 0 10px 30px rgba(0, 42, 84, .08); }
.header-main { max-width: 1180px; margin: 0 auto; min-height: 78px; display: flex; align-items: center; justify-content: space-between; gap: 24px; padding: 0 24px; }
.brand img { width: 297px; height: auto; }
.header-contact { display: flex; align-items: baseline; gap: 14px; color: var(--color-steel); font-size: 13px; }
.header-contact a { color: var(--color-blueprint-blue); font: 700 24px/1 var(--font-accent); }
.global-nav { background: var(--color-blueprint-blue); display: flex; justify-content: center; min-height: 52px; }
.global-nav a { color: #fff; font-weight: 700; padding: 14px 30px; border-left: 1px solid rgba(255,255,255,.18); }
.global-nav a:last-child { border-right: 1px solid rgba(255,255,255,.18); }
.global-nav .nav-cta { background: var(--color-signal-red); }

.hero { max-width: 100%; }
.split-hero { display: grid; grid-template-columns: minmax(0, .95fr) minmax(0, 1.05fr); min-height: 620px; background: linear-gradient(135deg, var(--color-deep-blueprint), var(--color-blueprint-blue) 70%, var(--color-precision-cyan)); color: #fff; }
.hero-copy { padding: 88px max(24px, calc((100vw - 1180px) / 2)) 96px; padding-left: max(24px, calc((100vw - 1180px) / 2)); display: flex; flex-direction: column; justify-content: center; }
.eyebrow { margin: 0 0 14px; color: var(--color-precision-cyan); font: 800 12px/1.3 var(--font-accent); letter-spacing: .12em; }
.hero-copy .eyebrow, .page-hero .eyebrow, .site-cta .eyebrow { color: #bfeeff; }
h1, h2, h3, p { overflow-wrap: anywhere; }
.hero-copy h1, .page-hero h1 { margin: 0 0 22px; font-size: clamp(34px, 4.3vw, 58px); line-height: 1.16; }
.hero-copy p, .page-hero p { max-width: 620px; font-size: 17px; }
.hero-photo { margin: 0; min-height: 620px; position: relative; overflow: hidden; }
.hero-photo img { width: 100%; height: 100%; object-fit: cover; }
.hero-photo::after { content: ""; position: absolute; inset: 0; background: linear-gradient(90deg, rgba(0,63,125,.36), rgba(0,0,0,.04)); }

.button-row { display: flex; gap: 12px; flex-wrap: wrap; align-items: center; margin-top: 26px; }
.button { display: inline-flex; align-items: center; justify-content: center; min-height: 48px; padding: 12px 20px; border: 1px solid var(--color-blueprint-blue); border-radius: 5px; color: var(--color-blueprint-blue); background: #fff; font-weight: 800; }
.button.primary { background: var(--color-signal-red); border-color: var(--color-signal-red); color: #fff; }
.button.light { background: #fff; border-color: #fff; color: var(--color-blueprint-blue); }
.text-link { display: inline-block; margin-top: 18px; color: var(--color-blueprint-blue); font-weight: 800; }

.proof-strip { max-width: 1180px; margin: -44px auto 0; display: grid; grid-template-columns: repeat(3, 1fr); gap: 1px; background: var(--color-line); position: relative; z-index: 2; padding: 0 24px; background-clip: content-box; }
.proof-strip div { background: #fff; padding: 25px 28px; min-height: 118px; }
.proof-strip strong { display: block; color: var(--color-blueprint-blue); font: 800 30px/1.2 var(--font-accent); }
.proof-strip span { color: var(--color-steel); font-size: 14px; }

.news-band { max-width: 1180px; margin: 42px auto 0; padding: 18px 24px; border-top: 1px solid var(--color-line); border-bottom: 1px solid var(--color-line); display: flex; gap: 20px; align-items: center; }
.news-band .eyebrow { margin: 0; color: var(--color-blueprint-blue); }
.news-band p { margin: 0; }
.news-band time { margin-right: 18px; color: var(--color-steel); font-family: var(--font-accent); }

.section { max-width: 1180px; margin: 0 auto; padding: 86px 24px; }
.section.narrow { max-width: 820px; }
.section-heading { max-width: 780px; margin-bottom: 34px; }
.section-heading.compact { margin-bottom: 20px; }
.section-heading .eyebrow { color: var(--color-blueprint-blue); }
.section-heading h2, .site-cta h2, .recruit-band h2, .thanks h1 { margin: 0 0 14px; color: var(--color-deep-blueprint); font-size: clamp(28px, 3vw, 40px); line-height: 1.25; }
.section-heading p { margin: 0; color: var(--color-steel); }
.panel-section, .blue-section { max-width: none; }
.panel-section { background: var(--color-panel); }
.panel-section > * { max-width: 1132px; margin-left: auto; margin-right: auto; }
.blue-section { background: linear-gradient(135deg, #002f56, var(--color-blueprint-blue) 58%, #0072c6); color: #fff; }
.blue-section .section-heading h2, .blue-section .section-heading p, .blue-section .eyebrow { color: #fff; }
.blue-section > * { max-width: 1132px; margin-left: auto; margin-right: auto; }

.card-grid { display: grid; gap: 24px; }
.card-grid.three { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.feature-card, .service-card, .product-card, .message-card, .contact-aside, .form-panel, .inline-block, .flow-grid article {
  background: #fff;
  border: 1px solid var(--color-line);
  border-radius: 6px;
}
.feature-card { padding: 28px; min-height: 230px; }
.feature-card .number { color: var(--color-blueprint-blue); font: 800 34px/1 var(--font-accent); }
.feature-card h3, .service-card h3, .product-card h3, .inline-block h3, .flow-grid h3 { margin: 14px 0 10px; color: var(--color-deep-blueprint); line-height: 1.45; }
.feature-card p, .service-card p, .product-card p, .inline-block p { margin: 0; color: var(--color-steel); font-size: 14px; }
.service-grid { display: grid; grid-template-columns: repeat(5, minmax(0, 1fr)); gap: 12px; margin-bottom: 30px; }
.service-card { padding: 25px 20px; min-height: 250px; border-color: rgba(255,255,255,.35); }
.product-card { overflow: hidden; color: inherit; }
.product-card img { width: 100%; aspect-ratio: 4 / 3; object-fit: cover; background: var(--color-panel); }
.product-card div { padding: 22px; }
.product-card span { color: var(--color-blueprint-blue); font-weight: 800; font-size: 12px; }

.recruit-band { max-width: none; background: #1f2436; color: #fff; display: grid; grid-template-columns: minmax(0, 1fr) minmax(320px, 540px); gap: 36px; align-items: center; padding-left: max(24px, calc((100vw - 1180px) / 2)); padding-right: max(24px, calc((100vw - 1180px) / 2)); }
.recruit-band h2 { color: #fff; }
.recruit-band img { width: 100%; height: 390px; object-fit: cover; border-radius: 6px; }

.page-hero { background: linear-gradient(135deg, var(--color-deep-blueprint), var(--color-blueprint-blue)); color: #fff; min-height: 360px; display: grid; grid-template-columns: minmax(0, 1fr) minmax(320px, 520px); gap: 36px; align-items: center; padding: 58px max(24px, calc((100vw - 1180px) / 2)); }
.page-hero img { width: 100%; height: 250px; object-fit: cover; border-radius: 6px; }

.two-column, .detail-layout, .contact-layout { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 34px; align-items: center; }
.align-start { align-items: start; }
.two-column img, .detail-image { width: 100%; border-radius: 6px; object-fit: cover; max-height: 520px; }
.stack { display: grid; gap: 16px; }
.inline-block { padding: 22px; }
.material-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; }
.material-grid span, .tabs span { background: #fff; border: 1px solid var(--color-line); border-radius: 5px; padding: 13px 16px; font-weight: 800; color: var(--color-deep-blueprint); }
.flow-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.flow-grid article { padding: 22px; }
.flow-grid span { color: var(--color-blueprint-blue); font: 800 12px/1 var(--font-accent); }
.tabs { display: flex; gap: 10px; flex-wrap: wrap; margin-bottom: 26px; }

.definition-list { display: grid; gap: 0; border: 1px solid var(--color-line); border-radius: 6px; overflow: hidden; margin: 0 0 26px; background: #fff; }
.definition-list.wide { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.definition-list div { display: grid; grid-template-columns: 150px 1fr; border-bottom: 1px solid var(--color-line); }
.definition-list div:last-child { border-bottom: 0; }
.definition-list dt { background: var(--color-panel); color: var(--color-deep-blueprint); font-weight: 800; padding: 14px 16px; }
.definition-list dd { margin: 0; padding: 14px 16px; }
.message-card, .form-panel, .contact-aside { padding: 30px; }
.signature { font-weight: 800; color: var(--color-deep-blueprint); }
.timeline { display: grid; gap: 14px; }
.timeline div { display: grid; grid-template-columns: 150px 1fr; gap: 24px; padding: 18px 0; border-bottom: 1px solid var(--color-line); }
.timeline time { color: var(--color-blueprint-blue); font-weight: 800; }
.timeline p { margin: 0; }
.check-list { list-style: none; padding: 0; margin: 0; display: grid; gap: 12px; }
.check-list li { padding-left: 28px; position: relative; }
.check-list li::before { content: ""; position: absolute; left: 0; top: .72em; width: 12px; height: 12px; background: var(--color-blueprint-blue); border-radius: 50%; }

.contact-aside { background: var(--color-deep-blueprint); color: #fff; align-self: stretch; }
.contact-aside h2 { margin: 0 0 16px; font: 800 clamp(32px, 4vw, 48px)/1 var(--font-accent); }
.field-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 18px; }
.field.full { grid-column: 1 / -1; }
.field label { display: flex; gap: 8px; align-items: center; font-weight: 800; color: var(--color-deep-blueprint); margin-bottom: 8px; }
.required { background: var(--color-signal-red); color: #fff; border-radius: 3px; padding: 2px 6px; font-size: 11px; }
input, textarea { width: 100%; border: 1px solid #cbd8e6; border-radius: 4px; padding: 12px 13px; font: inherit; }
textarea { min-height: 150px; resize: vertical; }
.form-help, .privacy-note { color: var(--color-steel); font-size: 13px; margin: 8px 0 0; }
.summary-list { border: 1px solid var(--color-line); border-radius: 6px; overflow: hidden; }
.summary-row { display: grid; grid-template-columns: 220px 1fr; border-bottom: 1px solid var(--color-line); }
.summary-row:last-child { border-bottom: 0; }
.summary-row dt, .summary-row dd { margin: 0; padding: 15px 18px; }
.summary-row dt { background: var(--color-panel); font-weight: 800; color: var(--color-deep-blueprint); }
.empty-summary { padding: 24px; background: var(--color-panel); border-radius: 6px; }
.thanks { min-height: 520px; display: flex; flex-direction: column; justify-content: center; }

.site-cta { background: linear-gradient(135deg, var(--color-deep-blueprint), var(--color-blueprint-blue)); color: #fff; padding: 58px max(24px, calc((100vw - 1180px) / 2)); display: flex; justify-content: space-between; gap: 28px; align-items: center; }
.site-cta h2 { color: #fff; max-width: 760px; font-size: clamp(24px, 2.7vw, 36px); }
.site-cta p { margin: 0; }
.cta-actions { display: grid; gap: 12px; justify-items: start; flex: 0 0 auto; }
.phone-link { color: #fff; font: 800 28px/1 var(--font-accent); }
.site-footer { background: #243040; color: #fff; padding: 44px max(24px, calc((100vw - 1180px) / 2)); display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 2fr); gap: 32px; }
.site-footer img { width: 278px; margin-bottom: 16px; }
.footer-links { display: flex; flex-wrap: wrap; gap: 12px 24px; align-content: start; justify-content: end; }
.footer-links a { color: #d9e6f2; }

@media (max-width: 900px) {
  .header-main { min-height: 68px; align-items: flex-start; flex-direction: column; padding-top: 14px; padding-bottom: 14px; }
  .brand img { width: 240px; }
  .header-contact { display: none; }
  .global-nav { justify-content: flex-start; overflow-x: auto; }
  .global-nav a { white-space: nowrap; padding: 12px 16px; font-size: 13px; }
  .split-hero, .page-hero, .recruit-band, .two-column, .detail-layout, .contact-layout, .site-cta, .site-footer { grid-template-columns: 1fr; }
  .hero-copy { padding: 52px 24px 34px; }
  .hero-photo, .split-hero { min-height: auto; }
  .hero-photo img { height: 280px; }
  .proof-strip { grid-template-columns: 1fr; margin: 0; padding: 0; }
  .news-band { margin-top: 0; align-items: flex-start; flex-direction: column; }
  .card-grid.three, .service-grid, .material-grid, .flow-grid, .definition-list.wide { grid-template-columns: 1fr; }
  .section { padding: 58px 24px; }
  .page-hero { padding: 44px 24px; }
  .page-hero img { height: 220px; }
  .definition-list div, .timeline div, .summary-row { grid-template-columns: 1fr; }
  .field-grid { grid-template-columns: 1fr; }
  .footer-links { justify-content: flex-start; }
}