:root {
  --accent: #f4a261;
  --accent-dark: #e08f4d;
  --text: #333333;
  --text-light: #666666;
  --text-muted: #999999;
  --border: #e5e5e5;
  --border-soft: #f0f0f0;
  --bg: #ffffff;
  --bg-soft: #fafafa;
  --bg-tag: #f5f5f5;
  --bg-quote: #fdf6ed;
  --rel-supervisor: #2f6f7a;
  --rel-ideal: #c9a368;
  --rel-benefit: #c98d2f;
  --serif: "Shippori Mincho", "Hiragino Mincho ProN", serif;
  --sans: "Noto Sans JP", "Inter", sans-serif;
  --mono: "JetBrains Mono", monospace;
  --chronicle: #c9954d;
  --avantgarde: #b54c3d;
  --breakthrough: #6b4e9b;
  --reflection: #4a6b7a;
  --spring: #8fbc8f;
  --summer: #e76f51;
  --autumn: #d4a85a;
  --winter: #6a8aaf;
  --quad-alpha: #93D2D9;
  --quad-beta: #2D3E59;
  --quad-gamma: #A63A2B;
  --quad-delta: #7BAE7F;
  --cond-construct: #3A6B8C;
  --cond-emotion: #C9503E;
}
.hero { position: relative; width: 100%; aspect-ratio: 16 / 7; max-height: 540px; background-color: #2a2a2a; background-size: cover; background-position: center; overflow: hidden; }
.hero.aspect-narrow { aspect-ratio: 16 / 6; max-height: 480px; }
.hero-overlay { position: absolute; inset: 0; background: linear-gradient(180deg, rgba(0,0,0,0) 50%, rgba(0,0,0,0.55) 100%); }
.hero-content { position: absolute; bottom: 0; padding: 36px 48px; max-width: 1200px; width: 100%; left: 50%; transform: translateX(-50%); }
.hero-title { font-family: var(--serif); font-size: 56px; font-weight: 500; letter-spacing: 0.02em; margin-bottom: 4px; line-height: 1.1; text-align: left; }
.hero.aspect-narrow .hero-title { font-size: 48px; }
.hero-subtitle { font-size: 22px; margin-bottom: 2px; }
.hero.aspect-narrow .hero-subtitle { font-size: 19px; margin-bottom: 4px; }
.hero-caption { font-size: 15px; }
.hero.aspect-narrow .hero-caption { font-size: 14px; }
.breadcrumb { max-width: 840px; margin: 32px auto 0; padding: 0 24px; font-size: 14px; color: var(--text-muted); }
.breadcrumb a { color: var(--text-muted); text-decoration: none; }
.breadcrumb a:hover { color: var(--text); }
main { max-width: 840px; margin: 0 auto; padding: 48px 24px 80px; font-family: var(--sans); font-size: 18px; line-height: 1.85; color: var(--text); }
main.with-breadcrumb { padding-top: 24px; }
h2 { font-family: var(--serif); font-size: 22px; font-weight: 350; letter-spacing: 0.04em; border-left: 4px solid var(--accent); padding: 0 14px; margin: 56px 0 24px; line-height: 1.4; text-align: left; }
main.overview-page h2 { font-size: 26px; }
h2:first-of-type { margin-top: 0; }
h3 { font-family: var(--serif); font-size: 18px; font-weight: 500; color: var(--text); margin: 32px 0 14px; text-align: left; }
main.overview-page h3 { font-size: 20px; margin: 40px 0 18px; letter-spacing: 0.04em; }
h3 .num { color: var(--accent); margin-right: 8px; }
main p { margin-bottom: 18px; line-height: 1.95; }
main p:last-child { margin-bottom: 0; }
main strong { font-weight: 600; }
main .lead { font-size: 17px; color: var(--text); }
main hr { border: none; border-top: 1px solid var(--border-soft); margin: 40px 0; }
a.text-link { color: var(--accent-dark); text-decoration: none; border-bottom: 1px solid rgba(244, 162, 97, 0.3); }
a.text-link:hover { border-bottom-color: var(--accent-dark); }
.cog-card { background: var(--bg-soft); border: 1px solid var(--border-soft); border-radius: 10px; padding: 20px 24px; margin: 16px 0; }
.cog-card-head { display: flex; align-items: baseline; gap: 12px; margin-bottom: 10px; }
.cog-card-name { font-family: var(--serif); font-size: 19px; font-weight: 600; }
.cog-card-en { font-size: 13px; color: var(--text-muted); font-family: var(--mono); }
.cog-traits { display: flex; gap: 8px; margin-top: 8px; flex-wrap: wrap; }
.cog-trait { background: white; border: 1px solid var(--border); padding: 3px 12px; border-radius: 999px; font-size: 13px; color: var(--text-light); }
.circulation-wrap { text-align: center; margin: 24px 0; }
.circulation-wrap svg { max-width: 100%; height: auto; }
.relation-diagram-wrap { text-align: center; margin: 32px 0 24px; }
.relation-diagram-wrap svg { max-width: 100%; height: auto; }
.relation-legend { display: flex; justify-content: center; gap: 32px; margin-top: 12px; font-size: 14px; color: var(--text-light); flex-wrap: wrap; }
.relation-legend-item { display: flex; align-items: center; gap: 8px; }
.legend-line { width: 30px; height: 3px; }
.legend-line.solid { background: var(--rel-supervisor); }
.legend-line.benefit { background: var(--rel-benefit); }
.legend-line.dashed { background-image: linear-gradient(to right, var(--rel-ideal) 60%, transparent 40%); background-size: 8px 3px; background-repeat: repeat-x; background-color: transparent; height: 3px; }
.pair-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); gap: 12px; margin-top: 20px; }
.pair-card { border: 1px solid var(--border); border-left: 4px solid var(--rel-supervisor); border-radius: 8px; padding: 12px 16px; background: white; }
.pair-card.benefit { border-left-color: var(--rel-benefit); }
.pair-card.ideal { border-left-color: var(--rel-ideal); }
.pair-card-top { display: flex; align-items: baseline; justify-content: space-between; gap: 8px; margin-bottom: 4px; }
.pair-types { font-family: var(--mono); font-size: 14px; font-weight: 700; }
.pair-label { font-size: 13px; color: var(--text-light); }
.pair-comfort { font-size: 12px; color: var(--text-muted); }
.trait-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); gap: 12px; margin-top: 16px; }
.trait-card { border: 1px solid var(--border-soft); border-left: 3px solid var(--accent); border-radius: 8px; padding: 14px 18px; background: white; }
.trait-name { font-family: var(--serif); font-size: 16px; font-weight: 600; margin-bottom: 4px; }
.trait-desc { font-size: 14px; color: var(--text-light); line-height: 1.7; }
.primary-source { background: var(--bg-quote); border-left: 4px solid var(--accent); border-radius: 0 8px 8px 0; padding: 24px 28px; margin: 24px 0; }
.primary-source-label { display: inline-block; font-size: 12px; font-weight: 700; color: var(--accent-dark); letter-spacing: 0.1em; margin-bottom: 8px; }
.primary-source-title { font-family: var(--serif); font-size: 17px; font-weight: 600; color: var(--text); margin-bottom: 14px; }
.primary-source blockquote { font-size: 16px; line-height: 2.0; color: var(--text); border: none; margin: 0 0 14px 0; padding: 0; }
.primary-source blockquote p { margin-bottom: 14px; }
.primary-source blockquote p:last-child { margin-bottom: 0; }
.primary-source-citation { text-align: right; font-size: 14px; color: var(--text-light); margin-top: 12px; font-style: italic; }
main table { width: 100%; border-collapse: collapse; margin: 18px 0 24px; font-size: 14px; font-family: var(--sans); }
main th { background: var(--bg-soft); color: var(--text); padding: 10px 12px; text-align: left; font-weight: 600; border-bottom: 2px solid var(--border); font-size: 13px; }
main td { padding: 10px 12px; border-bottom: 1px solid var(--border-soft); line-height: 1.65; vertical-align: top; }
main td.center { text-align: center; }
main tr:last-child td { border-bottom: none; }
.types-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; margin: 24px 0; }
.season-grid { display: grid; grid-template-columns: 1fr; gap: 14px; margin: 24px 0; }
.season-card { display: grid; grid-template-columns: 100px 1fr; gap: 20px; border: 1px solid var(--border); border-radius: 10px; padding: 20px 24px; background: white; align-items: start; }
.season-card.s-alpha { border-left: 4px solid var(--spring); }
.season-card.s-beta { border-left: 4px solid var(--summer); }
.season-card.s-gamma { border-left: 4px solid var(--autumn); }
.season-card.s-delta { border-left: 4px solid var(--winter); }

/* ── 命名の由来パネル(各サブグループページ冒頭) ── */
.naming-origin {
  background: #fdf6ed;
  border: 1px solid #ead7b8;
  border-left: 3px solid var(--accent);
  border-radius: 0 5px 5px 0;
  padding: 16px 22px 18px;
  margin: 0 0 32px;
}
.no-eyebrow {
  font-family: var(--mono); font-size: 10.5px; font-weight: 700;
  letter-spacing: 0.14em; color: var(--accent-dark);
  margin-bottom: 6px;
}
.no-row {
  display: flex; align-items: baseline; gap: 12px;
  margin-bottom: 8px;
}
.no-name {
  font-family: var(--serif); font-size: 22px; font-weight: 600;
  color: var(--text); letter-spacing: 0.02em;
}
.no-en {
  font-family: var(--mono); font-size: 13px; color: var(--text-muted);
}
.no-etym {
  font-size: 13.5px; color: var(--text-light);
  margin-bottom: 8px; line-height: 1.7;
}
.no-etym-label {
  display: inline-block; font-family: var(--mono);
  font-size: 10px; font-weight: 700; letter-spacing: 0.1em;
  background: rgba(244, 162, 97, 0.18); color: var(--accent-dark);
  padding: 2px 7px; border-radius: 3px; margin-right: 8px;
  vertical-align: 1px;
}
.no-meaning {
  font-size: 14.5px; line-height: 1.85; color: var(--text);
}
@media (max-width: 640px) {
  .naming-origin { padding: 14px 16px; }
  .no-name { font-size: 19px; }
  .no-row { flex-direction: column; gap: 2px; }
}

/* ── primary-source-fold (details/summary) ── */
.primary-source-fold {
  background: var(--bg-quote);
  border: 1px solid #ead7b8;
  border-left: 3px solid var(--accent);
  border-radius: 0 5px 5px 0;
  padding: 0;
  margin: 16px 0 28px;
}
.primary-source-fold .ps-summary {
  display: flex; align-items: baseline; gap: 12px;
  padding: 12px 18px; cursor: pointer;
  list-style: none;
}
.primary-source-fold .ps-summary::-webkit-details-marker { display: none; }
.primary-source-fold .ps-label {
  font-family: var(--mono); font-size: 10.5px; font-weight: 700;
  letter-spacing: 0.14em; color: var(--accent-dark);
}
.primary-source-fold .ps-title {
  font-family: var(--serif); font-size: 15px; font-weight: 600;
  color: var(--text); flex: 1;
}
.primary-source-fold .ps-marker {
  font-family: var(--mono); font-size: 11px; color: var(--text-muted);
}
.primary-source-fold[open] .ps-marker::before { content: "閉じる"; }
.primary-source-fold[open] .ps-marker { font-size: 0; }
.primary-source-fold[open] .ps-marker::before { font-size: 11px; }
.primary-source-fold .ps-content {
  padding: 0 18px 18px;
  font-size: 14.5px; line-height: 1.85;
  color: var(--text);
}

/* ── タイプチップ ── */
.type-list {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin: 12px 0 24px;
}
.type-chip {
  background: var(--bg-tag);
  color: var(--text);
  padding: 4px 11px;
  border-radius: 999px;
  font-size: 12.5px;
  font-family: var(--mono);
  font-weight: 500;
  border: 1px solid var(--border);
}

/* ── 歴史実例セクション ── */
.hist-pair {
  background: #fdf6ed; border: 1px solid #ead7b8; border-radius: 5px;
  padding: 12px 18px 14px; margin: 20px 0;
  display: flex; flex-direction: column; gap: 6px;
}
.hist-pair-label {
  font-family: var(--mono); font-size: 10.5px; font-weight: 700;
  letter-spacing: 0.12em; color: var(--accent-dark);
}
.hist-pair-link {
  font-family: var(--serif); font-size: 14px; color: var(--text);
  text-decoration: none; font-weight: 600;
}
.hist-pair-link:hover { color: var(--accent-dark); text-decoration: underline; }
.hist-pair-discussion {
  font-size: 12.5px; color: var(--text-muted);
  text-decoration: none;
}
.hist-pair-discussion:hover { color: var(--accent-dark); }

/* ── ブーケ式ヒーロー ── */
.hero-bouquet {
  margin: 24px auto 16px;
  border-radius: 12px;
  overflow: hidden;
  box-shadow: 0 4px 16px rgba(0,0,0,0.15);
  max-width: 720px;
}
.hero-bouquet img {
  width: 100%;
  height: auto;
  display: block;
}
.hero-info {
  max-width: 720px;
  margin: 0 auto 36px;
  text-align: center;
  padding: 0 16px;
}
.hero-info .hero-badges {
  display: flex;
  justify-content: center;
  gap: 8px;
  margin-bottom: 12px;
}
.hero-info .hero-badge {
  background: var(--bg-tag);
  color: var(--text-light);
  padding: 3px 10px;
  font-size: 11px;
  border-radius: 11px;
  font-family: var(--mono);
  letter-spacing: 0.05em;
}
.hero-info .hero-title {
  font-family: var(--serif);
  font-size: 34px;
  font-weight: 600;
  letter-spacing: 0.06em;
  margin: 0 0 4px;
  color: var(--text);
  text-align: center;
}
.hero-info .hero-subtitle {
  font-family: var(--serif);
  font-size: 18px;
  color: var(--text-light);
  margin-bottom: 10px;
  letter-spacing: 0.04em;
}
.hero-info .hero-caption {
  font-family: var(--serif);
  font-size: 14px;
  color: var(--text-muted);
  font-style: normal;
}
@media (max-width: 760px) {
  .hero-bouquet { max-width: 100%; margin: 16px 16px 12px; }
  .hero-info { padding: 0 16px; margin-bottom: 28px; }
  .hero-info .hero-title { font-size: 28px; }
  .hero-info .hero-subtitle { font-size: 16px; }
}

/* ── cond-nav: 2系統(構成系/感情系) ── */
.cond-nav { background: #fff; border-bottom: 1px solid #e5e8eb; padding: 12px 0; }
.cond-nav-inner { max-width: 1200px; margin: 0 auto; padding: 0 24px; display: flex; flex-direction: column; gap: 8px; }
.cond-nav-row { display: flex; align-items: center; gap: 16px; flex-wrap: wrap; }
.cond-nav-brand { font-family: "Shippori Mincho", serif; font-weight: 700; font-size: 16px; color: #2c3e50; text-decoration: none; margin-right: 8px; }
.cond-nav-brand:hover { text-decoration: none; }
.cond-nav-tabs { display: flex; gap: 6px; flex-wrap: wrap; }
.cond-nav-tabs a { font-size: 12.5px; color: #444; padding: 4px 10px; border-radius: 5px; text-decoration: none; }
.cond-nav-tabs a:hover { background: #f5f7fa; }
.cond-nav-tabs a.current { background: #f5f7fa; font-weight: 700; color: #2c3e50; }
.cond-nav-group { display: grid; grid-template-columns: 96px repeat(4, minmax(0,1fr)); align-items: baseline; column-gap: 8px; row-gap: 2px; }
.cond-nav-group .group-label { font-size: 12px; font-weight: 700; font-family: "JetBrains Mono", monospace; letter-spacing: .04em; }
.cond-nav-group.construct .group-label { color: #3A6B8C; }
.cond-nav-group.emotion .group-label { color: #C9503E; }
.cond-nav-group a { font-size: 12px; color: #555; text-decoration: none; padding: 2px 8px; border-radius: 4px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.cond-nav-group a:hover { background: #f5f7fa; }
.cond-nav-group.construct a.current { background: rgba(58, 107, 140, .18); color: #333; font-weight: 700; }
.cond-nav-group.emotion a.current { background: rgba(201, 80, 62, .18); color: #333; font-weight: 700; }
.cond-nav-group a .code { font-family: "JetBrains Mono", monospace; font-weight: 600; font-size: 11px; margin-right: 3px; }
.cond-nav-group.construct a .code { color: #3A6B8C; }
.cond-nav-group.emotion a .code { color: #C9503E; }
@media (max-width: 780px) {
  .cond-nav-group { grid-template-columns: 64px repeat(4, minmax(0,1fr)); column-gap: 4px; }
  .cond-nav-group a { padding: 2px 4px; font-size: 11px; }
}
@media (max-width: 520px) {
  .cond-nav-group { grid-template-columns: repeat(2, minmax(0,1fr)); }
  .cond-nav-group .group-label { grid-column: 1/-1; }
}