:root {
  --bg: #f5f7f4;
  --surface: #ffffff;
  --surface-alt: #eef3ed;
  --text: #1d2a22;
  --muted: #516156;
  --brand: #1f7a5c;
  --brand-strong: #14513d;
  --line: #d8e1db;
  --shadow: 0 18px 48px rgba(16, 39, 29, 0.1);
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
  font-family: "Noto Sans JP", "Hiragino Kaku Gothic ProN", "Yu Gothic", sans-serif;
  color: var(--text);
  background: radial-gradient(circle at 10% 10%, #ffffff 0%, #f5f7f4 45%, #e9efe8 100%);
}

a {
  color: inherit;
  text-decoration: none;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 40;
  backdrop-filter: blur(10px);
  background: rgba(255, 255, 255, 0.88);
  border-bottom: 1px solid var(--line);
}

.header-wrap,
.container,
.footer-wrap {
  width: min(1120px, calc(100% - 2.4rem));
  margin: 0 auto;
}

.header-wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.9rem 0;
  gap: 1rem;
}

.brand-title {
  font-size: 1.04rem;
  font-weight: 700;
  letter-spacing: 0.02em;
}

.brand-sub {
  font-size: 0.73rem;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.12em;
}

.menu-toggle {
  display: none;
  border: 1px solid var(--line);
  background: var(--surface);
  padding: 0.5rem 0.7rem;
  border-radius: 10px;
  font-size: 0.84rem;
}

.nav-list {
  display: flex;
  gap: 0.35rem;
  list-style: none;
  margin: 0;
  padding: 0;
}

.nav-link {
  display: block;
  padding: 0.56rem 0.85rem;
  border-radius: 10px;
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--muted);
}

.nav-link:hover,
.nav-link[aria-current="page"] {
  background: linear-gradient(135deg, #1f7a5c, #2f9b76);
  color: #fff;
}

.hero {
  margin: 2rem 0 1.4rem;
  border-radius: 22px;
  background: linear-gradient(145deg, rgba(31, 122, 92, 0.95), rgba(20, 81, 61, 0.88));
  color: #fff;
  padding: clamp(1.8rem, 4vw, 3rem);
  box-shadow: var(--shadow);
}

.hero h1 {
  margin: 0;
  font-size: clamp(1.5rem, 3.4vw, 2.5rem);
  line-height: 1.2;
}

.hero p {
  margin: 0.95rem 0 0;
  line-height: 1.8;
  max-width: 760px;
}

.section {
  margin: 1.15rem 0;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 18px;
  padding: clamp(1rem, 2.4vw, 1.6rem);
  box-shadow: 0 10px 24px rgba(15, 30, 21, 0.04);
}

.section-title {
  margin: 0 0 0.6rem;
  font-size: 1.15rem;
}

.lead {
  color: var(--muted);
  line-height: 1.9;
  margin: 0;
}

.gallery {
  margin-top: 1.1rem;
  display: grid;
  gap: 1rem;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
}

.main-visual-grid {
  margin-top: 1.1rem;
  display: grid;
  gap: 1rem;
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.main-visual-grid a {
  display: block;
  padding: 0.7rem;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: #f9fbf9;
}

.main-visual-grid img {
  width: 100%;
  height: auto;
  display: block;
  border-radius: 8px;
  border: 1px solid var(--line);
}

.gallery img,
.full-image,
.card img {
  width: 100%;
  display: block;
  border-radius: 12px;
  border: 1px solid var(--line);
}

.grid-two {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 1rem;
}

.photo-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1rem;
}

.icon-card img {
  width: auto;
  max-width: 220px;
  border: none;
}

.card {
  background: var(--surface-alt);
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 1rem;
}

.card h3 {
  margin: 0.6rem 0;
  font-size: 1rem;
}

.card p,
.list-text {
  margin: 0;
  line-height: 1.85;
  color: #2e3f35;
  font-size: 0.95rem;
}

.flow {
  display: grid;
  gap: 0.65rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.flow li {
  background: #f2f6f3;
  border-left: 4px solid var(--brand);
  border-radius: 8px;
  padding: 0.8rem 0.9rem;
  line-height: 1.8;
}

.info-table {
  width: 100%;
  border-collapse: collapse;
  overflow: hidden;
  border-radius: 12px;
}

.info-table th,
.info-table td {
  border: 1px solid var(--line);
  padding: 0.75rem 0.85rem;
  text-align: left;
  vertical-align: top;
  font-size: 0.94rem;
}

.info-table th {
  width: 30%;
  background: #edf4ee;
}

.breadcrumb {
  margin-top: 1rem;
  font-size: 0.85rem;
  color: var(--muted);
}

.site-footer {
  margin-top: 2rem;
  border-top: 1px solid var(--line);
  background: #fff;
}

.footer-wrap {
  padding: 1.1rem 0 2rem;
  color: var(--muted);
  font-size: 0.82rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
}

@media (max-width: 860px) {
  .menu-toggle {
    display: inline-flex;
  }

  .nav-list {
    display: none;
    position: absolute;
    left: 1.2rem;
    right: 1.2rem;
    top: calc(100% + 0.6rem);
    background: #fff;
    border: 1px solid var(--line);
    border-radius: 12px;
    padding: 0.6rem;
    flex-direction: column;
  }

  .nav-list.open {
    display: flex;
  }

  .header-wrap {
    position: relative;
  }

  .info-table th {
    width: 40%;
  }

  .gallery,
  .main-visual-grid,
  .photo-grid {
    grid-template-columns: 1fr;
  }
}