:root {
  --bg: #f4f7f3;
  --paper: #ffffff;
  --ink: #1b2a2a;
  --muted: #496060;
  --line: #d3dfd8;
  --accent: #0a7f5a;
  --accent-2: #f4a300;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: "Noto Sans JP", "Hiragino Kaku Gothic ProN", "Yu Gothic", sans-serif;
  color: var(--ink);
  background:
    radial-gradient(circle at 90% 10%, #d9f2e8 0, transparent 40%),
    radial-gradient(circle at 10% 80%, #fff4d8 0, transparent 35%),
    var(--bg);
  line-height: 1.7;
}

.hero {
  padding: 1.2rem 1rem 4rem;
}

.topbar {
  max-width: 1080px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 0.6rem;
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.brand {
  font-weight: 700;
  letter-spacing: 0.02em;
}

.lang-toggle {
  border: 1px solid var(--line);
  background: var(--accent);
  color: #fff;
  border-radius: 999px;
  padding: 0.45rem 0.9rem;
  font: inherit;
  cursor: pointer;
}

.lang-toggle:hover {
  filter: brightness(1.08);
}

.lang-toggle:focus-visible {
  outline: 3px solid #95cdb8;
  outline-offset: 2px;
}

.hero-inner {
  max-width: 1080px;
  margin: 3.2rem auto 0;
}

.eyebrow {
  margin: 0;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--accent);
  font-weight: 700;
  font-size: 0.82rem;
}

h1 {
  margin: 0.4rem 0 1rem;
  font-size: clamp(2rem, 5.8vw, 4.3rem);
  line-height: 1.05;
}

.lead {
  max-width: 760px;
  font-size: 1.05rem;
  color: var(--muted);
}

.hero-meta {
  margin-top: 1.4rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.7rem;
}

.hero-meta span {
  background: var(--paper);
  border: 1px solid var(--line);
  border-left: 6px solid var(--accent);
  padding: 0.35rem 0.7rem;
  border-radius: 0.4rem;
  font-size: 0.95rem;
}

main {
  max-width: 1080px;
  margin: 0 auto;
  padding: 0 1rem 2rem;
}

.section {
  margin-bottom: 1.4rem;
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 1.2rem;
}

.photo-feature {
  padding: 0.6rem;
  overflow: hidden;
}

.photo-feature figure {
  margin: 0;
  position: relative;
  border-radius: 12px;
  overflow: hidden;
}

.photo-feature img {
  display: block;
  width: 100%;
  max-height: 520px;
  object-fit: cover;
  filter: saturate(1.05) contrast(1.02);
}

.photo-feature figcaption {
  position: absolute;
  left: 0.8rem;
  bottom: 0.8rem;
  background: rgba(0, 0, 0, 0.64);
  color: #fff;
  padding: 0.35rem 0.65rem;
  border-radius: 999px;
  font-size: 0.85rem;
}

.card-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1rem;
}

.card {
  background: #fbfffc;
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 1rem;
}

h2 {
  margin: 0 0 0.6rem;
  font-size: 1.25rem;
}

h3 {
  margin: 0 0 0.5rem;
}

.table-wrap {
  overflow-x: auto;
}

table {
  width: 100%;
  border-collapse: collapse;
}

th,
td {
  border-bottom: 1px solid var(--line);
  padding: 0.8rem;
  text-align: left;
  vertical-align: top;
}

th {
  width: 28%;
  font-weight: 700;
}

.split {
  display: grid;
  grid-template-columns: 1.8fr 1fr;
  gap: 1rem;
}

.notice {
  border: 1px solid var(--line);
  border-left: 7px solid var(--accent-2);
  background: #fffef6;
  border-radius: 10px;
  padding: 1rem;
}

.footer {
  max-width: 1080px;
  margin: 0 auto;
  padding: 1.2rem 1rem 2.5rem;
  color: var(--muted);
  font-size: 0.93rem;
}

.license {
  margin-bottom: 0.45rem;
}

.cc0-mark {
  display: block;
  margin-bottom: 0.8rem;
}

.footer a {
  color: var(--accent);
}

@media (max-width: 900px) {
  .topbar {
    flex-wrap: wrap;
  }

  .card-grid {
    grid-template-columns: 1fr;
  }

  .split {
    grid-template-columns: 1fr;
  }

  th {
    width: 40%;
  }
}