:root {
  --navy: #142b4d;
  --navy-deep: #0f213a;
  --blue: #214c8f;
  --blue-soft: #e9f2ff;
  --sky: #f3f8ff;
  --line: #06c755;
  --gold: #d9b15f;
  --text: #17263c;
  --muted: #5f6f87;
  --white: #ffffff;
  --border: #d7e1ef;
  --shadow: 0 18px 42px rgba(14, 33, 58, 0.12);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: "Noto Sans JP", sans-serif;
  color: var(--text);
  background: #fff;
  line-height: 1.7;
}

a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }

.container {
  width: min(1120px, calc(100% - 32px));
  margin: 0 auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(20, 43, 77, 0.96);
  border-bottom: 1px solid rgba(255,255,255,0.08);
  backdrop-filter: blur(10px);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 78px;
  gap: 20px;
}
.brand {
  color: var(--white);
  display: flex;
  flex-direction: column;
  gap: 2px;
  font-weight: 800;
}
.brand-main { font-size: 1.15rem; letter-spacing: 0.02em; }
.brand-sub { font-size: 0.72rem; letter-spacing: 0.28em; color: #d9e7ff; }
.site-nav {
  display: flex;
  gap: 20px;
  flex-wrap: wrap;
}
.site-nav a {
  color: rgba(255,255,255,0.9);
  font-size: 0.95rem;
}
.site-nav a:hover { color: var(--gold); }
.nav-toggle {
  display: none;
  border: 0;
  background: rgba(255,255,255,0.12);
  color: white;
  width: 44px;
  height: 44px;
  border-radius: 10px;
  font-size: 1.1rem;
}

.hero {
  position: relative;
  overflow: hidden;
  background: linear-gradient(135deg, var(--navy) 0%, #1c4684 55%, #2d6bc2 100%);
  color: white;
  padding: 88px 0 70px;
}
.hero-overlay {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at top right, rgba(255,255,255,0.14), transparent 24%),
    radial-gradient(circle at bottom left, rgba(255,255,255,0.10), transparent 20%);
}
.hero-grid {
  position: relative;
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 40px;
  align-items: center;
}
.eyebrow {
  display: inline-block;
  margin-bottom: 16px;
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.22em;
  color: #d5e6ff;
}
.text-dark { color: var(--blue); }
.hero h1 {
  margin: 0;
  font-size: clamp(2.2rem, 4vw, 3.9rem);
  line-height: 1.25;
  font-weight: 800;
}
.lead {
  margin: 24px 0 0;
  color: rgba(255,255,255,0.9);
  font-size: 1.02rem;
}
.hero-actions,
.cta-actions {
  margin-top: 28px;
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
}
.hero-tags {
  list-style: none;
  padding: 0;
  margin: 24px 0 0;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}
.hero-tags li {
  padding: 8px 14px;
  background: rgba(255,255,255,0.12);
  border: 1px solid rgba(255,255,255,0.18);
  border-radius: 999px;
  font-size: 0.92rem;
}
.hero-panel {
  display: grid;
  gap: 18px;
}
.hero-panel-box {
  background: rgba(255,255,255,0.14);
  border: 1px solid rgba(255,255,255,0.16);
  border-radius: 24px;
  padding: 28px;
  box-shadow: var(--shadow);
}
.hero-panel-box h2 { margin: 0 0 14px; font-size: 1.35rem; }
.hero-panel-box ul { margin: 0; padding-left: 18px; }
.highlight-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 14px;
}
.highlight-card {
  background: white;
  color: var(--navy);
  border-radius: 20px;
  padding: 18px;
  box-shadow: var(--shadow);
}
.highlight-card span {
  display: block;
  font-size: 0.82rem;
  color: var(--muted);
}
.highlight-card strong {
  display: block;
  margin-top: 6px;
  font-size: 1.1rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 52px;
  padding: 0 22px;
  border-radius: 999px;
  font-weight: 700;
  transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease;
}
.btn:hover {
  transform: translateY(-1px);
}
.btn-line {
  background: var(--line);
  color: white;
  box-shadow: 0 14px 28px rgba(6, 199, 85, 0.28);
}
.btn-outline {
  border: 1px solid rgba(255,255,255,0.55);
  color: white;
  background: transparent;
}
.btn-outline:hover { background: rgba(255,255,255,0.08); }
.large { min-height: 56px; padding: 0 26px; }
.dark-outline {
  color: var(--navy);
  border-color: rgba(20,43,77,0.25);
}
.dark-outline:hover { background: rgba(20,43,77,0.05); }
.text-link {
  display: inline-block;
  margin-top: 14px;
  color: var(--blue);
  font-weight: 700;
}

.section {
  padding: 76px 0;
}
.section-head {
  text-align: center;
  margin-bottom: 36px;
}
.section-head h2 {
  margin: 0;
  font-size: clamp(1.8rem, 3vw, 2.6rem);
  line-height: 1.3;
  color: var(--navy);
}
.section-head p {
  margin: 12px auto 0;
  max-width: 720px;
  color: var(--muted);
}
.left-align { text-align: left; margin-bottom: 20px; }
.left-align p { margin-left: 0; }

.intro-strip {
  padding-top: 36px;
  padding-bottom: 36px;
  background: #fff;
}
.intro-strip-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 26px;
  align-items: center;
  background: linear-gradient(135deg, #f8fbff, #eef5ff);
  border: 1px solid var(--border);
  border-radius: 26px;
  padding: 26px 30px;
}
.intro-strip h2 {
  margin: 4px 0 0;
  color: var(--navy);
  font-size: 1.55rem;
}
.mini-title {
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.2em;
  color: var(--blue);
}

.cards {
  display: grid;
  gap: 20px;
}
.three-col { grid-template-columns: repeat(3, 1fr); }
.four-col { grid-template-columns: repeat(4, 1fr); }
.compact { gap: 16px; }

.job-card,
.content-card,
.step-card,
.feature-card {
  background: white;
  border: 1px solid var(--border);
  border-radius: 24px;
  padding: 26px;
  box-shadow: 0 10px 28px rgba(20,43,77,0.06);
}
.job-card h3,
.content-card h3,
.step-card h3,
.feature-card h3 {
  margin: 0 0 10px;
  color: var(--navy);
}
.job-card ul,
.detail-list {
  padding-left: 18px;
  margin: 0;
}
.job-card li,
.detail-list li { margin-bottom: 8px; }
.label {
  display: inline-flex;
  margin-bottom: 14px;
  padding: 6px 12px;
  border-radius: 999px;
  background: var(--blue-soft);
  color: var(--blue);
  font-size: 0.82rem;
  font-weight: 700;
}
.featured {
  border-color: rgba(33,76,143,0.22);
  transform: translateY(-4px);
}

.section-dark {
  background: linear-gradient(180deg, var(--navy) 0%, var(--navy-deep) 100%);
}
.section-dark .section-head h2,
.section-dark .section-head p,
.section-dark .eyebrow,
.section-dark .feature-card h3,
.section-dark .feature-card p {
  color: white;
}
.feature-card {
  background: rgba(255,255,255,0.06);
  border-color: rgba(255,255,255,0.12);
  box-shadow: none;
}

.grid {
  display: grid;
}
.two-col { grid-template-columns: repeat(2, 1fr); }
.gap-lg { gap: 24px; }
.accent-card { background: linear-gradient(180deg, #f7fbff, #eef5ff); }

.section-lightblue {
  background: var(--sky);
}
.step-card {
  background: white;
  text-align: left;
}
.step-card span {
  display: inline-flex;
  margin-bottom: 12px;
  padding: 5px 12px;
  border-radius: 999px;
  background: var(--navy);
  color: white;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.08em;
}

.faq-section { background: #fff; }
.faq-list {
  max-width: 860px;
  margin: 0 auto;
  display: grid;
  gap: 14px;
}
.faq-list details {
  border: 1px solid var(--border);
  border-radius: 18px;
  padding: 18px 20px;
  background: white;
}
.faq-list summary {
  cursor: pointer;
  font-weight: 700;
  color: var(--navy);
}
.faq-list p { margin: 10px 0 0; color: var(--muted); }

.cta-section {
  padding-top: 30px;
}
.cta-box {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 24px;
  align-items: center;
  background: linear-gradient(135deg, #edf5ff, #f8fbff);
  border: 1px solid var(--border);
  border-radius: 28px;
  padding: 32px;
}
.cta-box h2 {
  margin: 0;
  color: var(--navy);
  font-size: clamp(1.9rem, 3vw, 2.6rem);
}
.cta-box p { margin: 12px 0 0; color: var(--muted); }

.site-footer {
  margin-top: 72px;
  background: var(--navy);
  color: rgba(255,255,255,0.9);
  padding: 42px 0 24px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.2fr 1fr 1fr;
  gap: 30px;
}
.site-footer h3,
.site-footer h4 {
  margin: 0 0 12px;
  color: white;
}
.site-footer ul {
  list-style: none;
  padding: 0;
  margin: 0;
}
.site-footer li { margin-bottom: 8px; }
.site-footer a:hover { color: var(--gold); }
.footer-bottom {
  margin-top: 24px;
  padding-top: 20px;
  border-top: 1px solid rgba(255,255,255,0.12);
  font-size: 0.92rem;
  color: rgba(255,255,255,0.72);
}

@media (max-width: 980px) {
  .hero-grid,
  .intro-strip-inner,
  .cta-box,
  .footer-grid,
  .three-col,
  .four-col,
  .two-col {
    grid-template-columns: 1fr;
  }

  .site-nav {
    display: none;
    position: absolute;
    top: 78px;
    left: 0;
    right: 0;
    background: var(--navy);
    padding: 14px 16px 20px;
    flex-direction: column;
    border-top: 1px solid rgba(255,255,255,0.1);
  }
  .site-nav.open { display: flex; }
  .nav-toggle { display: inline-flex; align-items: center; justify-content: center; }
  .featured { transform: none; }
}

@media (max-width: 680px) {
  .hero { padding-top: 70px; }
  .section { padding: 58px 0; }
  .hero-panel-box,
  .job-card,
  .content-card,
  .step-card,
  .feature-card,
  .cta-box,
  .intro-strip-inner {
    padding: 22px;
  }
  .highlight-grid { grid-template-columns: 1fr 1fr; }
}