:root {
  --bg: #f4f6f8;
  --surface: rgba(255, 255, 255, 0.82);
  --surface-strong: #ffffff;
  --text: #13212d;
  --muted: #586574;
  --line: rgba(19, 33, 45, 0.12);
  --accent: #0f766e;
  --accent-strong: #115e59;
  --accent-soft: rgba(15, 118, 110, 0.12);
  --shadow: 0 24px 60px rgba(19, 33, 45, 0.12);
  --radius-lg: 28px;
  --radius-md: 18px;
  --radius-sm: 12px;
  --container: 1160px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: "Noto Sans JP", sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at top left, rgba(15, 118, 110, 0.14), transparent 30%),
    radial-gradient(circle at top right, rgba(20, 83, 45, 0.12), transparent 28%),
    linear-gradient(180deg, #f9fbfb 0%, var(--bg) 100%);
}

a {
  color: inherit;
}

img {
  display: block;
  max-width: 100%;
}

.container {
  width: min(calc(100% - 40px), var(--container));
  margin: 0 auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  backdrop-filter: blur(18px);
  background: rgba(244, 246, 248, 0.72);
  border-bottom: 1px solid rgba(19, 33, 45, 0.08);
}

.site-header__inner,
.site-footer__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: 16px 0;
}

.site-brand {
  font-size: 1rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-decoration: none;
}

.site-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 18px;
}

.site-nav a,
.site-footer a {
  text-decoration: none;
  color: var(--muted);
}

.site-nav a:hover,
.site-footer a:hover,
.text-link:hover {
  color: var(--accent-strong);
}

.hero {
  padding: 72px 0 40px;
}

.hero__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(320px, 0.9fr);
  gap: 32px;
  align-items: stretch;
}

.hero__content,
.hero__visual,
.panel,
.card,
.timeline,
.contact-card {
  background: var(--surface);
  border: 1px solid rgba(255, 255, 255, 0.6);
  box-shadow: var(--shadow);
  backdrop-filter: blur(14px);
}

.hero__content {
  border-radius: var(--radius-lg);
  padding: 44px;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 18px;
  padding: 8px 14px;
  border-radius: 999px;
  background: var(--accent-soft);
  color: var(--accent-strong);
  font-size: 0.9rem;
  font-weight: 700;
}

.hero h1 {
  margin: 0;
  font-size: clamp(2.4rem, 4.6vw, 4.3rem);
  line-height: 1.02;
  letter-spacing: -0.03em;
}

.hero__lead {
  margin: 22px 0 0;
  max-width: 34rem;
  color: var(--muted);
  font-size: 1.06rem;
  line-height: 1.9;
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 28px;
}

.button,
.button--secondary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0 20px;
  border-radius: 999px;
  font-weight: 700;
  text-decoration: none;
}

.button {
  background: var(--accent);
  color: #ffffff;
}

.button:hover {
  background: var(--accent-strong);
}

.button--secondary {
  border: 1px solid var(--line);
  color: var(--text);
  background: rgba(255, 255, 255, 0.6);
}

.hero__stats {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
  margin-top: 34px;
}

.stat {
  padding: 18px;
  border-radius: var(--radius-md);
  background: rgba(255, 255, 255, 0.82);
  border: 1px solid rgba(19, 33, 45, 0.06);
}

.stat strong {
  display: block;
  font-size: 1.35rem;
  line-height: 1.1;
}

.stat span {
  display: block;
  margin-top: 6px;
  color: var(--muted);
  font-size: 0.92rem;
}

.hero__visual {
  overflow: hidden;
  border-radius: var(--radius-lg);
}

.hero__visual img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  min-height: 520px;
  object-position: center;
}

.section {
  padding: 28px 0;
}

.section__header {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 20px;
  margin-bottom: 22px;
}

.section__header h2 {
  margin: 0;
  font-size: clamp(1.8rem, 3vw, 2.6rem);
  line-height: 1.15;
}

.section__header p,
.panel p,
.card p,
.timeline p,
.contact-card p,
.list-note,
.meta,
.text-link {
  color: var(--muted);
}

.grid {
  display: grid;
  gap: 20px;
}

.grid--news {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.grid--cards {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.grid--two {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.card,
.panel,
.timeline,
.contact-card {
  border-radius: var(--radius-md);
  padding: 28px;
}

.card h3,
.panel h3,
.timeline h3,
.contact-card h3 {
  margin: 0 0 14px;
  font-size: 1.15rem;
}

.tag-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 16px;
}

.tag {
  display: inline-flex;
  align-items: center;
  padding: 8px 12px;
  border-radius: 999px;
  background: rgba(19, 33, 45, 0.06);
  color: var(--text);
  font-size: 0.88rem;
}

.news-list,
.detail-list,
.simple-list {
  margin: 0;
  padding: 0;
  list-style: none;
}

.news-list li,
.detail-list li,
.simple-list li {
  padding: 14px 0;
  border-top: 1px solid var(--line);
}

.news-list li:first-child,
.detail-list li:first-child,
.simple-list li:first-child {
  padding-top: 0;
  border-top: 0;
}

.meta {
  display: block;
  margin-bottom: 6px;
  font-size: 0.86rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.timeline {
  position: relative;
}

.timeline::before {
  content: "";
  position: absolute;
  left: 38px;
  top: 34px;
  bottom: 34px;
  width: 2px;
  background: rgba(15, 118, 110, 0.14);
}

.timeline-item {
  position: relative;
  padding-left: 72px;
}

.timeline-item::before {
  content: "";
  position: absolute;
  left: 30px;
  top: 6px;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 0 6px rgba(15, 118, 110, 0.12);
}

.photo-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: 18px;
}

.photo-grid img {
  height: 100%;
  min-height: 260px;
  object-fit: cover;
  border-radius: var(--radius-md);
}

.photo-stack {
  display: grid;
  gap: 18px;
}

.contact-grid {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 20px;
}

.site-footer {
  margin-top: 40px;
  border-top: 1px solid rgba(19, 33, 45, 0.08);
}

.site-footer p {
  margin: 0;
  color: var(--muted);
}

@media (max-width: 980px) {
  .hero__grid,
  .grid--news,
  .grid--cards,
  .grid--two,
  .contact-grid,
  .photo-grid {
    grid-template-columns: 1fr;
  }

  .hero__visual img {
    min-height: 360px;
  }

  .photo-stack {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 720px) {
  .container {
    width: min(calc(100% - 28px), var(--container));
  }

  .site-header__inner,
  .site-footer__inner,
  .section__header {
    display: block;
  }

  .site-nav {
    margin-top: 12px;
    gap: 14px;
  }

  .hero {
    padding-top: 44px;
  }

  .hero__content,
  .panel,
  .card,
  .timeline,
  .contact-card {
    padding: 22px;
  }

  .hero__stats,
  .photo-stack {
    grid-template-columns: 1fr;
  }

  .timeline::before {
    left: 20px;
  }

  .timeline-item {
    padding-left: 48px;
  }

  .timeline-item::before {
    left: 12px;
  }
}