body {
  background-color: #0b0231;
  color: #3b2412;
  margin: 0;
}

img{
  display: block;
  max-width: 100%;
  height: auto;
  margin-left: auto;
  margin-right: auto;
}

.page-center {
  max-width: 960px;
  margin: 0 auto;
  padding: 16px 12px 72px;
  box-sizing: border-box;
  background-color: #ffffcc;
  border-radius: 14px;
  box-shadow: 0 4px 24px rgba(0, 0, 0, 0.35);
}

.page-title {
  text-align: center;
  margin-bottom: 16px;
}

.page-title img {
  display: block;
  max-width: 100%;
  height: auto;
  margin-left: auto;
  margin-right: auto;
}

.photo-row {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  align-items: flex-start;
  gap: 12px;
  margin: 20px 0;
}

.photo-row figure {
  margin: 0;
  padding: 6px;
  background-color: #ffffff;
  border-radius: 8px;
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.15);
}

.photo-row img {
  display: block;
  max-width: 100%;
  height: auto;
  border-radius: 4px;
}

h2, h3 {
  text-align: center;
  color: #1a4d1a;
  margin: 32px 0 8px;
}

p {
  line-height: 1.8;
  text-indent: 1em;
  margin: 12px 0;
}

hr {
  border: none;
  border-top: 1px solid #99cc99;
  margin: 28px auto;
  max-width: 600px;
}

/* シリーズ物「前へ／次へ」ナビ（insert-series-nav.jsで自動挿入） */
.series-nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  flex-wrap: wrap;
  max-width: 760px;
  margin: 28px auto 0;
  padding: 12px 16px;
  background-color: #ffffff;
  border-radius: 8px;
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.15);
}

.series-nav a {
  color: #0000cc;
  text-decoration: none;
  font-weight: bold;
  flex: 1 1 auto;
  min-width: 0;
}

.series-nav-prev {
  text-align: left;
}

.series-nav-next {
  text-align: right;
}

.series-nav a:hover,
.series-nav a:focus-visible {
  text-decoration: underline;
}

.series-nav-disabled {
  color: #aaaaaa;
  font-weight: bold;
  white-space: nowrap;
}

.series-nav-title {
  flex: 1 1 auto;
  text-align: center;
  font-size: 0.85em;
  color: #666666;
}