/* 更新日：2026-06-22 */
body {
  margin: 0;
  padding: 0;
  background: #f7f6f5;
  color: #2f2a25;
  font-family: "Hiragino Mincho ProN", "Yu Mincho", serif;
  font-size: 0.88em;
  line-height: 1.5;
  text-align: center;
}

header {
  text-align: center;
  margin: 32px 0 24px;
}

h1 {
  font-size: 2rem;
  letter-spacing: 0.08em;
  margin-bottom: 0.2em;
}

.header-image {
  width: 100%;
  max-width: 640px;
  height: auto;
  display: block;
  margin: 0 auto 18px;
}

.subtitle {
  font-size: 0.9rem;
  color: #6d6358;
}

.stone-photo {
  width: 85%;
  max-width: 480px;
  height: auto;
  display: block;
  margin: 20px auto;
}

.index-photo {
  width: 90%;
  max-width: 520px;
  height: auto;
  display: block;
  margin: 20px auto;
}

.yau-photo {
  width: 70%;
  max-width: 400px;
  height: auto;
  display: block;
  margin: 20px auto;
}

a {
  text-decoration: none;
  color: #D4A574;
}

h2 {
  font-size: 1rem;
}

.small-note {
  margin-top: 32px;
  color: #a7a9ad;
  font-size: 0.82rem;
  text-align: center;
  letter-spacing: 0.04em;
}

.honbun {
  color: #333333;
  font-size: 0.90em;
  max-width: 400px;
  width: 70%;
  margin: 0 auto;
}

.navi {
  font-size: 0.75em;
  letter-spacing: 0.15em;
  margin: 24px auto;
  line-height: 2.0;
}

.navi a {
  color: #937b6a;
  text-decoration: none;
  border-bottom: 1px dotted #c8b8a9;
  padding-bottom: 1px;
}

.bg-yoru {
  background: #1a1520;
  color: #e0d8d0;
}

.cave-text {
  max-width: 480px;
  width: 85%;
  margin: 0 auto;
  text-align: left;
}

.text-block {
  max-width: 400px;
  width: 68%;
  margin: 0 auto;
  text-align: center;
}

figure {
  margin: 20px auto;
  text-align: center;
}

figcaption {
  margin-top: 1px;
  font-size: 0.8em;
  color: #999999;
}

img {
  display: block;
  max-width: 100%;
  height: auto;
  margin-bottom: 8px;
}

.photo-pair {
  margin: 20px auto;
  max-width: 480px;
  width: 85%;
}

.photo-pair img {
  display: block;
  width: 100%;
  margin: 0;
}

figure .stone-photo {
  display: block;
  margin-bottom: 4px;
}

.stone-card {
  max-width: 480px;
  width: 85%;
  margin: 32px auto;
}

.stone-card .stone-name {
  text-align: center;
  font-size: 0.85rem;
  margin-top: 4px;
}

.stone-card .stone-comment {
  text-align: left;
  font-size: 0.75rem;
  color: #937b6a;
  line-height: 1.8;
  width: 85%;
  margin: 1px auto 0;
}

.stone-card .stone-photo {
  width: 100%;
}

.stone-card .photo-pair {
  width: 100%;
}