:root {
  --color-osaki-blue: #073485;
  --color-corporate-blue: #005eac;
  --color-sub-blue: #88b0d1;
  --color-ink: #251e1c;
  --color-paper: #ffffff;
  --color-mist: #f3f6f9;
  --color-line: #d9e2ea;
  --color-recruit-green: #3d8b52;
  --font-sans: "Hiragino Kaku Gothic ProN", "Yu Gothic", Meiryo, sans-serif;
  --font-serif: "Hiragino Mincho ProN", "Yu Mincho", serif;
  --font-en: Georgia, "Times New Roman", serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--color-ink);
  background: var(--color-paper);
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.9;
  letter-spacing: 0;
}
img { max-width: 100%; height: auto; }
a { color: inherit; }

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  height: 88px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 28px;
  padding: 0 48px;
  background: rgba(255, 255, 255, .97);
  border-bottom: 1px solid var(--color-line);
}
.logo-link img { width: 128px; display: block; }
.global-nav { display: flex; align-items: center; gap: 24px; font-size: 14px; font-weight: 700; }
.global-nav a { text-decoration: none; white-space: nowrap; }
.nav-cta { color: white; padding: 17px 18px; }
.nav-cta.green { background: var(--color-recruit-green); }
.nav-cta.blue { background: var(--color-osaki-blue); }

.page-hero {
  min-height: 680px;
  display: grid;
  grid-template-columns: 42% 58%;
  background: var(--color-osaki-blue);
  overflow: hidden;
}
.page-hero.compact { min-height: 390px; grid-template-columns: 48% 52%; }
.hero-copy {
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 86px 54px 70px 72px;
  color: white;
}
.compact .hero-copy { padding-top: 60px; padding-bottom: 60px; }
.eyebrow {
  margin: 0 0 14px;
  color: var(--color-sub-blue);
  font-family: var(--font-en);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: .14em;
}
.hero-copy h1 {
  margin: 0;
  font-family: var(--font-serif);
  font-size: clamp(36px, 4.4vw, 62px);
  line-height: 1.35;
  letter-spacing: .04em;
}
.hero-copy p:not(.eyebrow) { margin: 28px 0 0; max-width: 560px; font-size: 17px; }
.hero-photo {
  min-height: 680px;
  background-size: cover;
  background-position: center;
  position: relative;
}
.compact .hero-photo { min-height: 390px; }
.hero-photo::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, rgba(7, 52, 133, .45), rgba(7, 52, 133, .04));
}

section { padding: 92px 48px; }
.section-inner { max-width: 1180px; margin: 0 auto; }
.surface { background: var(--color-mist); }
.blue-section { background: var(--color-osaki-blue); color: white; }
.section-title {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 24px;
  align-items: end;
  margin-bottom: 42px;
  padding-bottom: 20px;
  border-bottom: 2px solid currentColor;
  color: var(--color-osaki-blue);
}
.blue-section .section-title, .contact-band .section-title { color: white; }
.section-title h2 {
  margin: 0;
  font-family: var(--font-serif);
  font-size: clamp(28px, 3vw, 38px);
  line-height: 1.45;
  letter-spacing: .04em;
}
.section-title > span {
  color: #e3ecf5;
  font-family: var(--font-en);
  font-size: clamp(48px, 7vw, 86px);
  line-height: .75;
  letter-spacing: .08em;
}
.blue-section .section-title > span, .contact-band .section-title > span { color: rgba(255,255,255,.14); }
.lead-text {
  max-width: 900px;
  margin: 0;
  font-family: var(--font-serif);
  font-size: clamp(21px, 2.2vw, 27px);
  line-height: 1.9;
}
.split {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(360px, .78fr);
  gap: 54px;
  align-items: center;
}
.split.reverse { grid-template-columns: minmax(360px, .78fr) minmax(0, 1fr); }
.split.reverse img { order: 2; }
.section-photo {
  width: 100%;
  aspect-ratio: 16 / 10;
  object-fit: cover;
  display: block;
}
.small-proof { max-width: 420px; justify-self: center; }
.button-row { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 32px; }
.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 52px;
  padding: 0 24px;
  border: 1px solid var(--color-osaki-blue);
  color: var(--color-osaki-blue);
  background: transparent;
  text-decoration: none;
  font-weight: 700;
  cursor: pointer;
}
.button.primary { background: var(--color-corporate-blue); border-color: var(--color-corporate-blue); color: white; }
.button.ghost { border-color: rgba(255,255,255,.7); color: white; }
.button.light { border-color: white; color: var(--color-osaki-blue); background: white; }
.card-grid, .location-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 22px;
}
.location-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.info-card {
  background: white;
  color: var(--color-ink);
  border: 1px solid var(--color-line);
  padding: 30px;
}
.blue-section .info-card { border-color: rgba(255,255,255,.18); }
.card-number {
  margin: 0 0 12px;
  color: var(--color-corporate-blue);
  font-family: var(--font-en);
  font-weight: 700;
}
.info-card h3, .split h3 {
  margin: 0 0 14px;
  color: var(--color-osaki-blue);
  font-family: var(--font-serif);
  font-size: 24px;
  line-height: 1.45;
}
.fact-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  border: 1px solid var(--color-line);
  background: var(--color-line);
  gap: 1px;
  margin-top: 42px;
}
.fact { background: white; padding: 26px; }
.fact span { display: block; color: #58616b; font-size: 13px; }
.fact b { display: block; color: var(--color-osaki-blue); font-family: var(--font-serif); font-size: 22px; line-height: 1.45; }
.news-list { border-top: 1px solid var(--color-line); }
.news-list a {
  display: grid;
  grid-template-columns: 150px 1fr;
  gap: 18px;
  padding: 22px 0;
  border-bottom: 1px solid var(--color-line);
  text-decoration: none;
}
.news-list time { color: var(--color-osaki-blue); font-weight: 700; }
.info-table { margin: 0; border-top: 1px solid var(--color-line); }
.info-row {
  display: grid;
  grid-template-columns: 240px 1fr;
  border-bottom: 1px solid var(--color-line);
}
.info-row dt, .info-row dd { margin: 0; padding: 18px 20px; }
.info-row dt { color: var(--color-osaki-blue); background: var(--color-mist); font-weight: 700; }
.signature { margin-top: 28px; font-family: var(--font-serif); font-size: 20px; text-align: right; }

.field-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 22px;
}
.field.full { grid-column: 1 / -1; }
.field label, .check-field legend {
  display: block;
  margin: 0 0 8px;
  font-weight: 700;
  color: var(--color-osaki-blue);
}
.field input, .field textarea {
  width: 100%;
  min-height: 52px;
  border: 1px solid var(--color-line);
  background: white;
  padding: 13px 14px;
  font: inherit;
}
.field textarea { min-height: 180px; resize: vertical; }
.required {
  display: inline-block;
  margin-left: 8px;
  padding: 1px 8px;
  background: var(--color-osaki-blue);
  color: white;
  font-size: 12px;
}
.form-help, .form-lead { color: #59636d; }
.check-field { border: 0; padding: 0; margin: 0; }
.checkbox-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px 18px;
}
.checkbox-grid label {
  display: flex;
  gap: 8px;
  align-items: flex-start;
  color: var(--color-ink);
  font-weight: 400;
}
.summary-list { border-top: 1px solid var(--color-line); }
.summary-row {
  display: grid;
  grid-template-columns: 220px 1fr;
  border-bottom: 1px solid var(--color-line);
}
.summary-row dt, .summary-row dd { margin: 0; padding: 16px 18px; }
.summary-row dt { color: var(--color-osaki-blue); background: white; font-weight: 700; }
.empty-summary { padding: 24px; background: white; border: 1px solid var(--color-line); }

.article-body {
  max-width: 900px;
  margin: 0 auto;
  padding: 92px 48px;
}
.article-body p { font-size: 17px; }
.article-image { width: 100%; margin-top: 32px; display: block; }

.contact-band {
  padding: 72px 48px;
  background: var(--color-osaki-blue);
  color: white;
}
.contact-band-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 30px;
}
.contact-band h2 {
  margin: 0;
  font-family: var(--font-serif);
  font-size: 32px;
}
.contact-actions { display: flex; gap: 16px; align-items: center; flex-wrap: wrap; }
.phone-link {
  color: white;
  font-family: var(--font-en);
  font-size: 34px;
  font-weight: 700;
  text-decoration: none;
}
.site-footer {
  padding: 54px 48px 30px;
  background: #081d3a;
  color: white;
}
.footer-inner {
  max-width: 1180px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  gap: 42px;
}
.footer-logo { width: 150px; background: white; padding: 10px; }
.footer-contact a {
  display: block;
  color: white;
  font-family: var(--font-en);
  font-size: 34px;
  font-weight: 700;
  text-decoration: none;
}
.footer-nav {
  max-width: 1180px;
  margin: 34px auto 0;
  padding: 22px 0 0;
  display: flex;
  flex-wrap: wrap;
  gap: 18px 26px;
  border-top: 1px solid rgba(255,255,255,.22);
  list-style: none;
}
.footer-nav a { color: white; text-decoration: none; font-size: 14px; }

@media (max-width: 960px) {
  .site-header { height: auto; min-height: 74px; padding: 14px 20px; }
  .global-nav { display: none; }
  .logo-link img { width: 116px; }
  .page-hero, .page-hero.compact { display: block; min-height: 0; }
  .hero-copy { padding: 48px 22px; }
  .hero-copy h1 { font-size: 34px; }
  .hero-photo, .compact .hero-photo { min-height: 280px; }
  section, .article-body { padding: 58px 20px; }
  .section-title { display: block; margin-bottom: 30px; }
  .section-title > span { display: block; margin-top: 12px; font-size: 44px; }
  .split, .split.reverse, .card-grid, .location-grid, .fact-grid, .field-grid, .checkbox-grid, .contact-band-inner, .footer-inner {
    display: block;
  }
  .split.reverse img { order: 0; }
  .section-photo, .info-card, .fact, .field { margin-bottom: 18px; }
  .info-row, .summary-row, .news-list a { grid-template-columns: 1fr; }
  .info-row dt, .summary-row dt { padding-bottom: 6px; }
  .contact-band { padding: 50px 20px; }
  .phone-link, .footer-contact a { font-size: 28px; }
}