/* 江東区周辺の推移 — mock (江東リンク特集型) */
@import url("https://fonts.googleapis.com/css2?family=Shippori+Mincho:wght@500;700&family=Zen+Kaku+Gothic+New:wght@400;500;700&display=swap");

:root {
  --reed-deep: #2d4530;
  --ink: #1a2118;
  --ink-soft: #3d4a38;
  --reed: #3f5a3a;
  --reed-mid: #5f7a52;
  --silt: #8a7355;
  --silt-light: #c9b896;
  --dusk: #243448;
  --foam: #f2f4ef;
  --panel: #e8ebe3;
  --flare: #d4a24a;
  --line: rgba(26, 33, 24, 0.14);
  --max: 1120px;
  --display: "Shippori Mincho", "Yu Mincho", serif;
  --body: "Zen Kaku Gothic New", "Hiragino Sans", "Noto Sans JP", sans-serif;
}

*,
*::before,
*::after { box-sizing: border-box; }

html { scroll-behavior: smooth; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

body {
  margin: 0;
  color: var(--ink);
  background: var(--foam);
  font-family: var(--body);
  font-size: 17px;
  line-height: 1.85;
}

img { max-width: 100%; display: block; }
a { color: inherit; }
a:focus-visible,
button:focus-visible {
  outline: 2px solid var(--reed-mid);
  outline-offset: 3px;
}

.skip {
  position: absolute;
  left: -9999px;
}
.skip:focus {
  left: 1rem;
  top: 1rem;
  z-index: 100;
  background: #fff;
  padding: 0.75rem 1rem;
}

/* Header */
.site-header {
  position: absolute;
  inset: 0 0 auto;
  z-index: 5;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1.1rem clamp(1.1rem, 4vw, 2.5rem);
  color: #fff;
}

.brand {
  display: flex;
  flex-direction: row;
  align-items: center;
  gap: 0.75rem;
  text-decoration: none;
  letter-spacing: 0.12em;
  font-weight: 700;
  color: inherit;
}
.brand-mark {
  flex: 0 0 40px;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.92);
  object-fit: contain;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.18);
}
.brand__text {
  display: flex;
  flex-direction: column;
  gap: 0.15rem;
}
.brand small {
  font-size: 0.68rem;
  font-weight: 500;
  letter-spacing: 0.18em;
  opacity: 0.78;
}

.site-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem 1.1rem;
  font-size: 0.82rem;
  letter-spacing: 0.06em;
}
.site-nav a {
  text-decoration: none;
  border-bottom: 1px solid transparent;
  padding-bottom: 0.15rem;
  opacity: 0.9;
}
.site-nav a:hover,
.site-nav a:focus-visible {
  border-color: var(--flare);
  opacity: 1;
}

.nav-toggle {
  display: none;
  border: 1px solid rgba(255, 255, 255, 0.45);
  background: rgba(0, 0, 0, 0.2);
  color: #fff;
  padding: 0.45rem 0.8rem;
  letter-spacing: 0.08em;
  font-size: 0.78rem;
  cursor: pointer;
}

@media (max-width: 820px) {
  .nav-toggle { display: inline-flex; }
  .site-nav {
    position: absolute;
    top: 100%;
    right: 1rem;
    left: 1rem;
    display: none;
    flex-direction: column;
    gap: 0;
    padding: 0.75rem;
    background: rgba(26, 33, 24, 0.94);
    border: 1px solid rgba(255, 255, 255, 0.12);
  }
  .site-nav.is-open { display: flex; }
  .site-nav a {
    padding: 0.65rem 0.5rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  }
}

/* Hero */
.hero {
  position: relative;
  min-height: min(78vh, 680px);
  display: grid;
  align-content: end;
  overflow: hidden;
  color: #fff;
  background: #1a261c;
}

.hero__media {
  position: absolute;
  inset: 0;
}

.hero__media svg {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transform: scale(1.02);
  animation: drift 20s ease-in-out infinite alternate;
}

.hero__media::after {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(105deg, rgba(20, 28, 22, 0.88) 0%, rgba(20, 28, 22, 0.5) 50%, rgba(20, 28, 22, 0.28) 100%),
    linear-gradient(180deg, rgba(20, 28, 22, 0.15) 0%, rgba(20, 28, 22, 0.62) 100%);
}

@keyframes drift {
  from { transform: scale(1.02) translateY(0); }
  to { transform: scale(1.06) translateY(-1.4%); }
}

.hero__copy {
  position: relative;
  z-index: 1;
  width: min(var(--max), calc(100% - 2.2rem));
  margin: 0 auto;
  padding: 5.5rem 0 3.25rem;
}

.hero__brand {
  margin: 0 0 1.4rem;
  font-size: clamp(1.35rem, 3.2vw, 2rem);
  font-weight: 700;
  letter-spacing: 0.18em;
  font-family: var(--display);
}

.hero h1 {
  margin: 0;
  max-width: 12ch;
  font-family: var(--display);
  font-size: clamp(2.15rem, 5.5vw, 3.6rem);
  font-weight: 700;
  line-height: 1.35;
  letter-spacing: 0.04em;
  animation: rise 0.9s ease-out both;
}

.hero__lead {
  margin: 1.25rem 0 0;
  max-width: 34em;
  font-size: clamp(1rem, 1.7vw, 1.15rem);
  line-height: 1.9;
  color: rgba(242, 244, 239, 0.9);
  animation: rise 0.9s ease-out 0.12s both;
}

.hero__actions {
  margin-top: 2rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  animation: rise 0.9s ease-out 0.22s both;
}

@keyframes rise {
  from { opacity: 0; transform: translateY(14px); }
  to { opacity: 1; transform: translateY(0); }
}

.hero__credit {
  margin: 0;
  padding: 0.65rem clamp(1.1rem, 4vw, 2.5rem);
  background: var(--ink);
  color: rgba(242, 244, 239, 0.72);
  font-size: 0.72rem;
  letter-spacing: 0.06em;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 2.85rem;
  padding: 0.65rem 1.35rem;
  border: 1px solid rgba(255, 255, 255, 0.55);
  background: rgba(255, 255, 255, 0.08);
  color: #fff;
  text-decoration: none;
  letter-spacing: 0.08em;
  font-size: 0.92rem;
  transition: background 0.25s ease, border-color 0.25s ease;
}
.button:hover {
  background: rgba(255, 255, 255, 0.16);
  border-color: #fff;
}
.button--solid {
  background: var(--flare);
  border-color: var(--flare);
  color: var(--ink);
  font-weight: 700;
}
.button--solid:hover {
  background: #e0b45c;
  border-color: #e0b45c;
}
.button--dark {
  border-color: var(--ink);
  color: var(--ink);
  background: transparent;
}
.button--dark:hover {
  background: rgba(26, 33, 24, 0.06);
  border-color: var(--ink);
}

/* Sections */
.section {
  width: min(var(--max), calc(100% - 2.2rem));
  margin-inline: auto;
  padding: clamp(2.75rem, 6vw, 4.5rem) 0;
}

.section--tint {
  width: 100%;
  background:
    linear-gradient(180deg, #e6ebe0 0%, var(--foam) 100%);
}
.section--tint > .section__inner,
.section--deep > .section__inner,
.section--dusk > .section__inner {
  width: min(var(--max), calc(100% - 2.2rem));
  margin-inline: auto;
  padding: clamp(2.75rem, 6vw, 4.5rem) 0;
}

.section--deep {
  width: 100%;
  background:
    radial-gradient(ellipse 65% 45% at 85% 0%, rgba(95, 122, 82, 0.28), transparent 55%),
    linear-gradient(180deg, #2a3528, #1a2118);
  color: var(--foam);
}

.section--dusk {
  width: 100%;
  background:
    radial-gradient(ellipse 60% 50% at 10% 100%, rgba(212, 162, 74, 0.12), transparent 50%),
    linear-gradient(180deg, #243448, #1a2535);
  color: var(--foam);
}

.eyebrow {
  margin: 0 0 0.75rem;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--reed-mid);
}
.section--deep .eyebrow,
.section--dusk .eyebrow { color: var(--flare); }

h2 {
  margin: 0;
  font-family: var(--display);
  font-size: clamp(1.7rem, 3.8vw, 2.55rem);
  line-height: 1.4;
  letter-spacing: 0.04em;
  font-weight: 700;
}

.section__lead {
  margin: 1.1rem 0 0;
  max-width: 40em;
  color: var(--ink-soft);
  font-size: 1.02rem;
}
.section--deep .section__lead,
.section--dusk .section__lead {
  color: rgba(242, 244, 239, 0.82);
}

/* Fact chips */
.fact-legend {
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem;
  margin: 1.75rem 0 0;
  padding: 0;
  list-style: none;
}
.fact-legend li {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.35rem 0.7rem;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.55);
  font-size: 0.78rem;
  letter-spacing: 0.04em;
}
.fact-dot {
  width: 0.55rem;
  height: 0.55rem;
  border-radius: 50%;
  background: var(--reed);
}
.fact-dot--soft { background: var(--silt); }
.fact-dot--open { background: transparent; border: 2px solid var(--dusk); }

.badge {
  display: inline-block;
  margin-right: 0.4rem;
  padding: 0.12rem 0.45rem;
  border: 1px solid currentColor;
  font-size: 0.68rem;
  letter-spacing: 0.08em;
  vertical-align: middle;
  opacity: 0.85;
}
.badge--ok { color: var(--reed); }
.badge--soft { color: var(--silt); }
.badge--open { color: var(--dusk); }
.section--deep .badge--ok,
.section--dusk .badge--ok { color: #a8c49a; }
.section--deep .badge--soft,
.section--dusk .badge--soft { color: var(--silt-light); }
.section--deep .badge--open,
.section--dusk .badge--open { color: #9eb0c4; }

/* Question block */
.question-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: clamp(1.5rem, 4vw, 3rem);
  margin-top: 2.25rem;
  align-items: start;
}
@media (max-width: 780px) {
  .question-grid { grid-template-columns: 1fr; }
}

.question-panel {
  padding: 1.5rem 0 0;
  border-top: 1px solid var(--line);
}
.question-panel h3 {
  margin: 0 0 0.75rem;
  font-family: var(--display);
  font-size: 1.25rem;
  font-weight: 700;
  letter-spacing: 0.04em;
}
.question-panel p {
  margin: 0 0 0.9rem;
  color: var(--ink-soft);
}
.question-panel p:last-child { margin-bottom: 0; }

.aside-note {
  padding: 1.35rem 1.4rem;
  background: var(--panel);
  border-left: 3px solid var(--flare);
}
.aside-note p {
  margin: 0;
  font-size: 0.95rem;
  color: var(--ink-soft);
}
.aside-note strong {
  display: block;
  margin-bottom: 0.45rem;
  font-family: var(--display);
  color: var(--ink);
  font-size: 1.05rem;
}

/* Landscape eras */
.era-strip {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  margin-top: 2.25rem;
  background: rgba(255, 255, 255, 0.12);
  border: 1px solid rgba(255, 255, 255, 0.12);
}
@media (max-width: 780px) {
  .era-strip { grid-template-columns: 1fr; }
}
.era-strip article {
  padding: 1.5rem 1.35rem;
  background: rgba(0, 0, 0, 0.18);
}
.era-strip .era-label {
  margin: 0 0 0.65rem;
  font-size: 0.72rem;
  letter-spacing: 0.18em;
  color: var(--flare);
  text-transform: uppercase;
}
.era-strip h3 {
  margin: 0 0 0.7rem;
  font-family: var(--display);
  font-size: 1.2rem;
  font-weight: 700;
}
.era-strip p {
  margin: 0;
  color: rgba(242, 244, 239, 0.8);
  font-size: 0.95rem;
}

/* Timeline */
.timeline {
  margin: 2.25rem 0 0;
  padding: 0;
  list-style: none;
  border-left: 2px solid var(--line);
}
.timeline__item {
  position: relative;
  padding: 0 0 1.85rem 1.5rem;
}
.timeline__item:last-child { padding-bottom: 0; }
.timeline__item::before {
  content: "";
  position: absolute;
  left: -0.42rem;
  top: 0.45rem;
  width: 0.7rem;
  height: 0.7rem;
  border-radius: 50%;
  background: var(--reed);
  box-shadow: 0 0 0 4px var(--foam);
  animation: pulse-dot 2.8s ease-in-out infinite;
}
.timeline__item:nth-child(even)::before { background: var(--silt); }
.timeline__item:nth-child(3n)::before { background: var(--dusk); }

@keyframes pulse-dot {
  0%, 100% { box-shadow: 0 0 0 4px var(--foam); }
  50% { box-shadow: 0 0 0 7px rgba(63, 90, 58, 0.12); }
}

.timeline__year {
  display: block;
  margin-bottom: 0.35rem;
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  color: var(--reed);
}
.timeline__item h3 {
  margin: 0 0 0.45rem;
  font-family: var(--display);
  font-size: 1.2rem;
  font-weight: 700;
}
.timeline__item p {
  margin: 0;
  color: var(--ink-soft);
  max-width: 42em;
}

/* Now map of meaning */
.now-list {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.25rem 2rem;
  margin: 2rem 0 0;
  padding: 0;
  list-style: none;
}
@media (max-width: 700px) {
  .now-list { grid-template-columns: 1fr; }
}
.now-list li {
  padding-top: 1rem;
  border-top: 1px solid rgba(255, 255, 255, 0.16);
}
.now-list h3 {
  margin: 0 0 0.45rem;
  font-family: var(--display);
  font-size: 1.15rem;
}
.now-list p {
  margin: 0;
  color: rgba(242, 244, 239, 0.8);
  font-size: 0.95rem;
}

/* Related */
.related {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 1.75rem;
}

/* Sources */
.sources {
  margin: 1.75rem 0 0;
  padding: 0;
  list-style: none;
}
.sources li {
  padding: 0.85rem 0;
  border-top: 1px solid var(--line);
  color: var(--ink-soft);
  font-size: 0.95rem;
}
.sources li:last-child { border-bottom: 1px solid var(--line); }
.sources strong {
  display: block;
  margin-bottom: 0.2rem;
  color: var(--ink);
  font-weight: 700;
}

.status-box {
  margin-top: 1.75rem;
  padding: 1.2rem 1.35rem;
  border: 1px dashed var(--line);
  background: rgba(255, 255, 255, 0.45);
  font-size: 0.92rem;
  color: var(--ink-soft);
}
.status-box p { margin: 0 0 0.6rem; }
.status-box p:last-child { margin: 0; }

/* Quotes & figures from web sources */
.pull-quote {
  margin: 1.75rem 0 0;
  padding: 1.25rem 1.4rem;
  border-left: 3px solid var(--flare);
  background: rgba(255, 255, 255, 0.55);
}
.section--deep .pull-quote,
.section--dusk .pull-quote {
  background: rgba(0, 0, 0, 0.22);
  border-left-color: var(--flare);
}
.pull-quote p {
  margin: 0;
  font-family: var(--display);
  font-size: 1.05rem;
  line-height: 1.85;
  letter-spacing: 0.03em;
}
.pull-quote footer {
  margin-top: 0.85rem;
  font-family: var(--body);
  font-size: 0.78rem;
  letter-spacing: 0.04em;
  color: var(--ink-soft);
}
.section--deep .pull-quote footer,
.section--dusk .pull-quote footer {
  color: rgba(242, 244, 239, 0.65);
}
.pull-quote a { text-decoration: underline; text-underline-offset: 0.15em; }

.media-frame {
  margin: 1.75rem 0 0;
}
.media-frame img {
  width: 100%;
  height: auto;
  max-height: min(52vh, 520px);
  object-fit: cover;
  object-position: center;
}
.media-frame figcaption {
  margin-top: 0.55rem;
  font-size: 0.78rem;
  letter-spacing: 0.04em;
  color: var(--ink-soft);
}
.section--deep .media-frame figcaption,
.section--dusk .media-frame figcaption {
  color: rgba(242, 244, 239, 0.68);
}
.media-frame figcaption a {
  text-decoration: underline;
  text-underline-offset: 0.15em;
}

.media-pair {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
  margin-top: 1.75rem;
}
@media (max-width: 720px) {
  .media-pair { grid-template-columns: 1fr; }
}
.media-pair figure { margin: 0; }
.media-pair img {
  width: 100%;
  height: min(42vh, 280px);
  object-fit: cover;
}
.media-pair figcaption {
  margin-top: 0.45rem;
  font-size: 0.75rem;
  color: var(--ink-soft);
  letter-spacing: 0.03em;
}
.section--deep .media-pair figcaption,
.section--dusk .media-pair figcaption {
  color: rgba(242, 244, 239, 0.68);
}

.source-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem 1.5rem;
  margin-top: 1.75rem;
}
@media (max-width: 720px) {
  .source-grid { grid-template-columns: 1fr; }
}
.source-block {
  margin: 0 0 1.75rem;
  padding: 1.1rem 1.15rem 1.2rem;
  border: 1px solid var(--line);
  background: #fff;
}
.source-block h3 {
  margin: 0 0 0.55rem;
  font-family: var(--display);
  font-size: 1.15rem;
  font-weight: 700;
}
.source-block > p {
  margin: 0 0 0.75rem;
  color: var(--ink-soft);
  max-width: 46em;
  font-size: 0.95rem;
}
.source-block ul {
  margin: 0 0 0.85rem;
  padding-left: 1.15rem;
  color: var(--ink-soft);
  font-size: 0.92rem;
}
.source-block li {
  margin: 0.35rem 0;
}
.source-block a {
  color: var(--reed-deep);
}
.source-card {
  padding: 1rem 0;
  border-top: 1px solid var(--line);
}
.source-card h3 {
  margin: 0 0 0.4rem;
  font-size: 1rem;
  font-family: var(--display);
}
.source-card p {
  margin: 0 0 0.55rem;
  font-size: 0.9rem;
  color: var(--ink-soft);
}
.source-card a {
  font-size: 0.82rem;
  letter-spacing: 0.03em;
  text-decoration: underline;
  text-underline-offset: 0.15em;
}

.rights-note {
  margin-top: 1.25rem;
  padding: 0.85rem 1rem;
  background: #fff6e8;
  border: 1px solid rgba(138, 115, 85, 0.35);
  font-size: 0.85rem;
  color: #5a4630;
}
.rights-note p { margin: 0; }

/* Marsh / landfill transition gallery */
.gallery-block {
  margin-top: 2.5rem;
  padding-top: 1.75rem;
  border-top: 1px solid var(--line);
}
.gallery-block h3 {
  margin: 0 0 0.55rem;
  font-family: var(--display);
  font-size: clamp(1.25rem, 2.4vw, 1.55rem);
  font-weight: 700;
}
.gallery-block > p {
  margin: 0 0 1.1rem;
  max-width: 42em;
  color: var(--ink-soft);
  font-size: 0.98rem;
}
.gallery {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0.9rem;
  margin: 0;
  padding: 0;
  list-style: none;
}
.gallery--3 { grid-template-columns: repeat(3, 1fr); }
.gallery--scroll {
  display: grid;
  grid-auto-flow: column;
  grid-auto-columns: minmax(220px, 28vw);
  gap: 0.75rem;
  overflow-x: auto;
  padding-bottom: 0.5rem;
  scroll-snap-type: x mandatory;
}
@media (max-width: 780px) {
  .gallery,
  .gallery--3 { grid-template-columns: 1fr; }
  .gallery--scroll { grid-auto-columns: minmax(78vw, 1fr); }
}
.gallery figure {
  margin: 0;
  scroll-snap-align: start;
  background: rgba(255, 255, 255, 0.55);
  border: 1px solid var(--line);
}
.gallery figure img {
  width: 100%;
  height: 200px;
  object-fit: cover;
  background: #dfe5d8;
}
.gallery--maps figure img {
  height: 240px;
  object-fit: contain;
  background: #eef1ea;
  padding: 0.35rem;
}
.gallery figcaption {
  padding: 0.55rem 0.7rem 0.7rem;
  font-size: 0.75rem;
  letter-spacing: 0.03em;
  color: var(--ink-soft);
  line-height: 1.55;
}
.gallery figcaption b {
  display: block;
  margin-bottom: 0.15rem;
  color: var(--ink);
  font-size: 0.82rem;
}
.ext-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.65rem;
  margin-top: 1.25rem;
}

/* 5段階の変異ストーリー */
@media (max-width: 900px) {
  .morph-steps { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 520px) {
  .morph-steps { grid-template-columns: 1fr; }
}
.morph-arrow {
  display: none;
}

/* 変遷プレイヤー */
.age-player {
  margin-top: 1rem;
  border: 1px solid var(--line);
  background: #fff;
  outline: none;
}
.age-player__stage {
  position: relative;
  min-height: 280px;
  background: #eef1ea;
}
.age-player__stage [data-slide] {
  margin: 0;
}
.age-player__stage img {
  width: 100%;
  max-height: min(62vh, 520px);
  object-fit: contain;
  display: block;
  margin: 0 auto;
  background: #eef1ea;
}
.age-player__stage figcaption {
  padding: 0.75rem 1rem;
  font-size: 0.9rem;
  color: var(--ink-soft);
  background: #fff;
  border-top: 1px solid var(--line);
}
.age-player__stage figcaption b {
  display: block;
  margin-bottom: 0.2rem;
  color: var(--ink);
  font-family: var(--display);
  font-size: 1.05rem;
}
.age-player__controls {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.65rem;
  padding: 0.85rem 1rem;
  border-top: 1px solid var(--line);
  background: var(--panel);
}
.age-player__controls button {
  min-height: 2.4rem;
  padding: 0.4rem 0.9rem;
  border: 1px solid var(--ink);
  background: #fff;
  cursor: pointer;
  letter-spacing: 0.06em;
  font-size: 0.85rem;
}
.age-player__controls button:hover {
  background: var(--ink);
  color: #fff;
}
.age-player__status {
  flex: 1;
  min-width: 12rem;
  margin: 0;
  font-size: 0.88rem;
  color: var(--ink-soft);
}
.age-dots {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
  width: 100%;
  margin: 0;
  padding: 0 1rem 1rem;
  list-style: none;
  background: var(--panel);
}
.age-dots button {
  min-height: 2rem;
  padding: 0.3rem 0.55rem;
  border: 1px solid var(--line);
  background: #fff;
  font-size: 0.72rem;
  letter-spacing: 0.02em;
  cursor: pointer;
  color: var(--ink-soft);
}
.age-dots button.is-active,
.age-dots button[aria-current="true"] {
  border-color: var(--reed);
  background: var(--reed);
  color: #fff;
}

/* 年表 + イラスト */
.timeline__item {
  padding-left: 1.35rem;
}
.timeline__layout {
  display: grid;
  grid-template-columns: minmax(140px, 220px) 1fr;
  gap: 1rem 1.25rem;
  align-items: start;
}
@media (max-width: 720px) {
  .timeline__layout { grid-template-columns: 1fr; }
}
.timeline__illust {
  margin: 0;
  border: 1px solid var(--line);
  background:
    linear-gradient(145deg, #e7ecdf, #f7f4ea);
  aspect-ratio: 4 / 3;
  overflow: hidden;
  position: relative;
}
.timeline__illust img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.timeline__illust.is-missing::after {
  content: "イラスト生成中";
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  font-size: 0.78rem;
  letter-spacing: 0.12em;
  color: var(--ink-soft);
  background: rgba(242, 244, 239, 0.72);
}
.timeline__illust.is-missing img { opacity: 0; }
.timeline__morph {
  display: inline-block;
  margin: 0 0 0.55rem;
  padding: 0.2rem 0.55rem;
  background: rgba(63, 90, 58, 0.1);
  border-left: 3px solid var(--reed);
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  color: var(--reed);
}
.compare-strip {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  gap: 0.65rem;
  align-items: center;
  margin: 1.5rem 0 0;
  padding: 1rem;
  background: #fff;
  border: 1px solid var(--line);
}
@media (max-width: 700px) {
  .compare-strip { grid-template-columns: 1fr; }
}
.compare-strip figure { margin: 0; }
.compare-strip img {
  width: 100%;
  height: 160px;
  object-fit: cover;
}
.compare-strip figcaption {
  margin-top: 0.35rem;
  font-size: 0.75rem;
  color: var(--ink-soft);
}
.compare-strip__vs {
  text-align: center;
  font-family: var(--display);
  font-weight: 700;
  letter-spacing: 0.12em;
  color: var(--silt);
}

/* 閉じた状態が基本のストーリー章 */
.timeline {
  border-left: none;
  padding: 0;
}
.timeline__item {
  padding: 0 0 0.85rem;
  list-style: none;
}
.timeline__item::before { display: none; }

.story-chapter,
.story-beat,
.story-illust {
  border: 1px solid var(--line);
  background: #fff;
}
.story-chapter {
  margin: 0;
}
.story-chapter > summary,
.story-beat > summary,
.story-illust > summary {
  list-style: none;
  cursor: pointer;
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 0.35rem 0.75rem;
  padding: 0.95rem 1rem;
  font-family: var(--display);
}
.story-chapter > summary::-webkit-details-marker,
.story-beat > summary::-webkit-details-marker,
.story-illust > summary::-webkit-details-marker {
  display: none;
}
.story-chapter > summary::after,
.story-beat > summary::after,
.story-illust > summary::after {
  content: "＋ 開く";
  margin-left: auto;
  font-family: var(--body);
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  color: var(--reed);
  font-weight: 700;
}
.story-chapter[open] > summary::after,
.story-beat[open] > summary::after,
.story-illust[open] > summary::after {
  content: "− 閉じる";
}
.story-chapter > summary:hover,
.story-beat > summary:hover,
.story-illust > summary:hover {
  background: rgba(63, 90, 58, 0.05);
}
.story-chapter > summary .timeline__year {
  margin: 0;
  width: 100%;
}
.story-chapter > summary h3 {
  margin: 0;
  font-size: clamp(1.15rem, 2.4vw, 1.45rem);
  font-weight: 700;
}
.story-chapter__body {
  padding: 0 1.1rem 1.35rem;
  border-top: 1px solid var(--line);
}
.story-note {
  margin: 1rem 0;
  padding: 0.75rem 0.9rem;
  background: #fff6e8;
  border-left: 3px solid var(--flare);
  font-size: 0.88rem;
  color: #5a4630;
}
.story-chapter__body > p {
  margin: 0 0 0.95rem;
  color: var(--ink-soft);
  max-width: 42em;
}
.story-thesis {
  margin: 1.25rem 0;
  padding: 1.1rem 1.2rem;
  background: var(--panel);
  border-left: 3px solid var(--reed);
}
.story-thesis p {
  margin: 0;
  font-family: var(--display);
  font-size: 1.12rem;
  line-height: 1.75;
  color: var(--ink);
}
.story-beats {
  display: grid;
  gap: 0.65rem;
  margin-top: 1.25rem;
}
.story-beat {
  background: rgba(242, 244, 239, 0.55);
}
.story-beat > summary {
  font-size: 1.02rem;
  font-weight: 700;
}
.story-beat__body {
  padding: 0 1rem 1rem;
  border-top: 1px solid var(--line);
}
.story-beat__body > p {
  margin: 0.85rem 0 0;
  color: var(--ink-soft);
  max-width: 42em;
  font-size: 0.98rem;
}
.story-illust {
  margin-top: 0.85rem;
  background: #fff;
}
.story-illust > summary {
  font-family: var(--body);
  font-size: 0.88rem;
  font-weight: 700;
  letter-spacing: 0.04em;
}
.story-illust figure {
  margin: 0;
  border-top: 1px solid var(--line);
}
.story-illust img {
  width: 100%;
  max-height: min(52vh, 420px);
  object-fit: cover;
  display: block;
  background: #e7ecdf;
}
.story-illust figcaption {
  padding: 0.55rem 0.85rem 0.75rem;
  font-size: 0.75rem;
  color: var(--ink-soft);
}
.story-illust.is-missing summary::before {
  content: "（生成中）";
  margin-right: 0.35rem;
  color: var(--silt);
  font-weight: 500;
}
.story-illust.is-missing img {
  display: none;
}
.story-illust.is-missing figure {
  min-height: 0;
}

/* 短い年表項目も閉じる */
.story-compact > summary .timeline__morph {
  width: 100%;
  margin: 0.15rem 0 0;
}
.story-compact__body {
  padding: 0 1rem 1rem;
  border-top: 1px solid var(--line);
}
.story-compact__body > p {
  margin: 0.85rem 0 0;
  color: var(--ink-soft);
  max-width: 42em;
}

.timeline__cite {
  display: block;
  margin-top: 0.55rem;
  font-size: 0.78rem;
  color: var(--reed);
}
.timeline__cite a { text-decoration: underline; text-underline-offset: 0.12em; }

/* Footer — 町会サイト（佐賀町 global-footer）と同型。色は本特集の芦原系（水運の藍は使わない） */
.global-footer,
.global-footer *,
.global-footer *::before,
.global-footer *::after {
  box-sizing: border-box;
}
.global-footer {
  --global-footer-content: min(1120px, calc(100% - 40px));
  --global-footer-ink: #121a14;
  --global-footer-band: #1e2c22;
  --global-footer-white: #fffdf8;
  --global-footer-gold: #c9b07a;
  --global-footer-line: rgba(255, 255, 255, 0.17);
  color: rgba(255, 253, 248, 0.82);
  background: var(--global-footer-ink);
  font-family: var(--body);
  font-size: 18px;
  line-height: 1.8;
  letter-spacing: 0.035em;
  text-align: left;
}
.global-footer a { color: inherit; }
.global-footer a:focus-visible {
  outline: 3px solid var(--global-footer-gold);
  outline-offset: 5px;
}
.global-footer__main {
  width: var(--global-footer-content);
  margin-inline: auto;
  padding: clamp(3.5rem, 7vw, 5rem) 0;
  display: grid;
  grid-template-columns: minmax(15rem, 0.8fr) minmax(0, 1.2fr);
  gap: clamp(3rem, 8vw, 7rem);
}
.global-footer__brand {
  margin: 0 0 1rem;
  color: var(--global-footer-white);
  font-family: var(--display);
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 600;
  letter-spacing: 0.18em;
  line-height: 1.2;
}
.global-footer__brand small {
  display: block;
  margin-top: 0.65rem;
  font-family: var(--body);
  font-size: 0.875rem;
  font-weight: 500;
  letter-spacing: 0.2em;
}
.global-footer__story {
  max-width: 24rem;
  margin: 0;
  color: rgba(255, 253, 248, 0.66);
  font-size: 0.9rem;
}
.global-footer__nav { align-self: center; }
.global-footer__nav-title {
  margin: 0 0 1rem;
  color: var(--global-footer-gold);
  font-size: 0.875rem;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}
.global-footer__nav ul {
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 0.65rem 1.5rem;
  list-style: none;
}
.global-footer__nav a {
  display: inline-block;
  padding: 0.3rem 0;
  color: var(--global-footer-white);
  font-size: 0.9rem;
  text-decoration: none;
  text-underline-offset: 0.3em;
}
.global-footer__nav a:hover { text-decoration: underline; }
.global-footer__credits {
  border-top: 1px solid var(--global-footer-line);
  border-bottom: 1px solid var(--global-footer-line);
  background: rgba(45, 69, 48, 0.45);
}
.global-footer__credits-inner {
  width: var(--global-footer-content);
  margin-inline: auto;
  padding: 1.6rem 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
}
.global-footer__credit {
  min-width: 0;
  padding: 0.4rem clamp(1.25rem, 4vw, 3rem);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
}
.global-footer__credit:first-child {
  padding-left: 0;
  border-right: 1px solid var(--global-footer-line);
}
.global-footer__credit:last-child { padding-right: 0; }
.global-footer__credit-label {
  display: block;
  margin-bottom: 0.2rem;
  color: rgba(255, 253, 248, 0.56);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.14em;
}
.global-footer__credit-name {
  margin: 0;
  color: var(--global-footer-white);
  font-size: 1rem;
  font-weight: 700;
}
.global-footer__credit-link {
  flex: 0 0 auto;
  color: var(--global-footer-gold);
  font-size: 0.875rem;
  font-weight: 700;
  text-decoration: none;
  white-space: nowrap;
}
.global-footer__credit-link:hover { text-decoration: underline; }
.global-footer__bottom {
  width: var(--global-footer-content);
  margin-inline: auto;
  padding: 1.5rem 0 2rem;
  display: flex;
  justify-content: space-between;
  gap: 2rem;
  color: rgba(255, 253, 248, 0.58);
  font-size: 0.78rem;
}
.global-footer__bottom p { margin: 0; }
@media (max-width: 820px) {
  .global-footer__main {
    grid-template-columns: 1fr;
    gap: 2.5rem;
  }
  .global-footer__nav ul {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .global-footer__credits-inner {
    grid-template-columns: 1fr;
  }
  .global-footer__credit { padding: 1rem 0; }
  .global-footer__credit:first-child {
    border-right: 0;
    border-bottom: 1px solid var(--global-footer-line);
  }
}
@media (max-width: 620px) {
  .global-footer {
    --global-footer-content: min(100% - 28px, 1120px);
    font-size: 16px;
  }
  .global-footer__nav ul { gap: 0.4rem 1rem; }
  .global-footer__credit { align-items: flex-start; }
  .global-footer__credit-label,
  .global-footer__bottom { font-size: 0.875rem; }
  .global-footer__bottom { display: block; }
  .global-footer__bottom p + p { margin-top: 0.5rem; }
}


/* 史実タグ・根拠表 */
.fact-tag {
  display: inline-block;
  margin-right: 0.45rem;
  padding: 0.12rem 0.45rem;
  border-radius: 2px;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  vertical-align: 0.08em;
  background: #e8eee3;
  color: #3d4a35;
}
.fact-tag[data-kind="fact"] { background: #e3efe6; color: #245536; }
.fact-tag[data-kind="approx"] { background: #eef0e4; color: #555a2e; }
.fact-tag[data-kind="tradition"] { background: #e8eef5; color: #2f4560; }
.fact-tag[data-kind="interp"] { background: #f3ebe2; color: #6a4a2a; }
.fact-tag[data-kind="story"] { background: #f5e8ef; color: #6a2f4a; }
.fact-tag[data-kind="wrong"] { background: #f3e4e4; color: #6e2f2f; }

.story-disclaimer {
  margin: 1.5rem 0 0.25rem;
  padding: 0.85rem 1rem;
  border: 1px dashed var(--line);
  background: #fafaf7;
  font-size: 0.86rem;
  color: var(--ink-soft);
  max-width: 46em;
  line-height: 1.7;
}
.story-disclaimer--sources { margin-top: 1.25rem; }

.source-primary {
  margin: 1rem 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 1.1rem;
}
.source-primary > li {
  padding: 0.95rem 1rem 1rem;
  border: 1px solid var(--line);
  background: #fafaf7;
}
.source-primary h4 {
  margin: 0 0 0.4rem;
  font-size: 0.98rem;
}
.source-primary > li > p {
  margin: 0 0 0.45rem;
  font-size: 0.88rem;
}
.source-primary ul {
  margin: 0.35rem 0 0.5rem;
  padding-left: 1.15rem;
  font-size: 0.88rem;
  color: var(--ink-soft);
}
.source-primary li li { margin: 0.25rem 0; }
.source-role {
  margin: 0.35rem 0 0 !important;
  font-size: 0.84rem !important;
  color: var(--reed-deep) !important;
}
.source-subhead {
  margin: 1.5rem 0 0.65rem;
  font-size: 1.05rem;
}
.fact-table-wrap {
  overflow-x: auto;
  border: 1px solid var(--line);
  background: #fff;
}
.fact-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.88rem;
}
.fact-table th,
.fact-table td {
  padding: 0.65rem 0.75rem;
  border-bottom: 1px solid var(--line);
  text-align: left;
  vertical-align: top;
}
.fact-table th {
  background: #f2f4ef;
  font-weight: 700;
}
.fact-table tr:last-child td { border-bottom: 0; }
.fact-table td:first-child { max-width: 18em; color: var(--ink); }


.story-continue {
  margin: 0.85rem 0 1.1rem;
  padding: 0.7rem 0.9rem;
  background: #eef5ea;
  border: 1px solid #c5d6be;
  font-size: 0.9rem;
  color: #2f4a2c;
  max-width: 42em;
}
.story-closing {
  margin: 1.35rem 0 0;
  padding: 1rem 1.1rem;
  background: var(--panel);
  border-left: 3px solid var(--reed);
  max-width: 46em;
}
.story-closing h4 {
  margin: 0 0 0.5rem;
  font-family: var(--display);
  font-size: 1.05rem;
}
.story-closing p {
  margin: 0;
  color: var(--ink-soft);
  font-size: 0.98rem;
}
.story-beats {
  margin-top: 0.5rem;
}

.story-list {
  margin: 0.75rem 0 0;
  padding-left: 1.25rem;
  columns: 2;
  column-gap: 1.5rem;
  color: var(--ink-soft);
  font-size: 0.95rem;
  max-width: 36em;
}
.story-list li { margin: 0.2rem 0; break-inside: avoid; }
@media (max-width: 640px) {
  .story-list { columns: 1; }
}


.story-map {
  margin: 1.35rem 0 0;
  border: 1px solid var(--line);
  background: #fff;
  overflow: hidden;
}
.story-map__caption {
  margin: 0;
  padding: 0.75rem 1rem 0.35rem;
  font-family: var(--display);
  font-size: 1.02rem;
  font-weight: 700;
  color: var(--ink);
}
.story-map__link {
  display: block;
  line-height: 0;
}
.story-map img {
  width: 100%;
  height: auto;
  max-height: min(70vh, 560px);
  object-fit: contain;
  object-position: center;
  background: #e8ece6;
  display: block;
}
.story-map__note {
  margin: 0;
  padding: 0.7rem 1rem 0.95rem;
  font-size: 0.84rem;
  color: var(--ink-soft);
  line-height: 1.7;
  border-top: 1px solid var(--line);
}
.story-map__note a {
  color: var(--reed-deep);
}


/* ドラマチック・ヒーロー */
.hero--dramatic {
  position: relative;
  min-height: min(92vh, 820px);
  display: grid;
  align-items: end;
  align-content: end;
  overflow: hidden;
  background: #0e1418;
  color: #fffaf0;
}
.hero--dramatic .hero__media {
  position: absolute;
  inset: 0;
  margin: 0;
}
.hero--dramatic .hero__media::after {
  display: none;
}
.hero--dramatic .hero__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center 42%;
  filter: saturate(1.08) contrast(1.06);
  animation: hero-kenburns 22s ease-in-out infinite alternate;
}
@keyframes hero-kenburns {
  from { transform: scale(1.02) translateY(0); }
  to { transform: scale(1.08) translateY(-1.5%); }
}
.hero--dramatic .hero__veil {
  position: absolute;
  inset: 0;
  z-index: 0;
  background:
    linear-gradient(180deg, rgba(8, 12, 16, 0.12) 0%, rgba(8, 12, 16, 0.28) 45%, rgba(8, 12, 16, 0.82) 100%),
    linear-gradient(105deg, rgba(8, 12, 16, 0.62) 0%, rgba(8, 12, 16, 0.18) 52%, transparent 78%);
  pointer-events: none;
}
.hero--dramatic .hero__copy {
  position: relative;
  z-index: 1;
  padding: clamp(2rem, 6vw, 4.5rem) clamp(1.25rem, 5vw, 4rem) clamp(2.5rem, 7vw, 5rem);
  max-width: 40rem;
  color: #f4f1e8;
}
.hero--dramatic .hero__brand {
  color: #e8d7a8;
  letter-spacing: 0.28em;
  text-transform: none;
}
.hero--dramatic h1 {
  color: #fffaf0;
  text-shadow: 0 2px 28px rgba(0, 0, 0, 0.45);
  font-size: clamp(2.6rem, 8vw, 4.6rem);
  line-height: 1.05;
}
.hero--dramatic .hero__lead {
  color: rgba(244, 241, 232, 0.88);
  max-width: 28em;
}
.hero--dramatic .button {
  border-color: rgba(244, 241, 232, 0.45);
  color: #fffaf0;
  background: transparent;
}
.hero--dramatic .button--solid {
  background: #fffaf0;
  color: #1a221c;
  border-color: #fffaf0;
}
.hero--dramatic .button:hover {
  background: rgba(255, 250, 240, 0.12);
}
.hero--dramatic .button--solid:hover {
  background: #fff;
}

.story-hero-illust {
  margin: 1rem 0 1.25rem;
  border: 1px solid var(--line);
  background: #fff;
  overflow: hidden;
}
.story-hero-illust img {
  width: 100%;
  max-height: min(52vh, 420px);
  object-fit: cover;
  display: block;
  background: #e7ecdf;
}
.story-hero-illust figcaption {
  padding: 0.55rem 0.85rem 0.75rem;
  font-size: 0.75rem;
  color: var(--ink-soft);
}

/* story-photo-pair: 庁舎当時/現在の対比（鳥山あきら最終調整） */
.story-photo-pair {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
  margin: 0 0 1.25rem;
  padding: 0.75rem;
  border: 1px solid var(--line);
  background: #fff;
}
.story-photo-pair__item {
  margin: 0;
}
.story-photo-pair img {
  width: 100%;
  aspect-ratio: 4 / 3;
  height: auto;
  max-height: min(38vh, 320px);
  object-fit: cover;
  object-position: center;
  display: block;
  background: #e8ece6;
}
.story-photo-pair figcaption {
  margin: 0;
  padding: 0.5rem 0 0;
  font-size: 0.75rem;
  line-height: 1.55;
  color: var(--ink-soft);
}
.story-photo-pair figcaption b {
  display: block;
  margin-bottom: 0.15rem;
  color: var(--ink);
  font-size: 0.82rem;
}
@media (max-width: 640px) {
  .story-photo-pair {
    grid-template-columns: 1fr;
    gap: 1.15rem;
    padding: 0.65rem;
  }
  .story-photo-pair img {
    max-height: min(44vh, 360px);
  }
}
.story-h {
  margin: 1.35rem 0 0.55rem;
  font-family: var(--display);
  font-size: 1.08rem;
  font-weight: 700;
  color: var(--ink);
}
.story-chapter__body > .story-h:first-of-type {
  margin-top: 1rem;
}

/* removed: legacy accordion / morph-story placeholders */

/* Story fact-tag legend (unified 6 labels) */
.fact-legend--story {
  display: grid;
  gap: 0.45rem 1rem;
  margin: 1rem 0 1.4rem;
  padding: 0.9rem 1rem;
  list-style: none;
  border: 1px solid var(--line);
  background: #fafaf7;
  max-width: 52em;
}
@media (min-width: 720px) {
  .fact-legend--story { grid-template-columns: 1fr 1fr; }
}
.fact-legend--story li {
  display: flex;
  align-items: flex-start;
  gap: 0.35rem;
  margin: 0;
  font-size: 0.84rem;
  color: var(--ink-soft);
  line-height: 1.55;
}
.fact-legend--story .fact-tag { flex: 0 0 auto; margin-right: 0; }



.bridge-next,
.bridge-prev {
  margin: 1.25rem 0 0;
  padding: 0.75rem 1rem;
  max-width: 42em;
  font-size: 0.92rem;
  line-height: 1.7;
  color: #2f4a2c;
  background: #eef5ea;
  border-left: 3px solid var(--reed);
}
.section--deep .bridge-next {
  margin-left: 0;
}
.bridge-prev {
  margin: 0 0 0.85rem;
  background: #f3f0e8;
  border-left-color: var(--silt);
  color: #4a4535;
}
.story-thesis-note {
  margin: 0.35rem 0 1.1rem;
  font-size: 0.84rem;
  color: var(--ink-soft);
  max-width: 42em;
}


.legend-ref {
  margin: 0 0 1rem;
  font-size: 0.88rem;
  color: var(--ink-soft);
  max-width: 42em;
}
.legend-ref--tight {
  margin: 0 0 0.55rem;
}
.gallery-block__cite {
  margin-top: 0.75rem;
  font-size: 0.85rem;
  color: var(--ink-soft);
}
.marsh-more {
  margin: 1.25rem 0;
  border: 1px solid var(--line);
  background: #fff;
}
.marsh-more > summary {
  cursor: pointer;
  list-style: none;
  padding: 0.95rem 1.1rem;
  font-family: var(--display);
  font-weight: 700;
  font-size: 1.02rem;
}
.marsh-more > summary::-webkit-details-marker { display: none; }
.marsh-more > summary::after {
  content: "＋ 開く";
  float: right;
  font-family: var(--body);
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  color: var(--reed);
  font-weight: 700;
}
.marsh-more[open] > summary::after { content: "− 閉じる"; }
.marsh-more__body {
  padding: 0 1rem 1rem;
  border-top: 1px solid var(--line);
}
.marsh-more__body .gallery-block {
  margin-top: 1rem;
}
.media-pair--single {
  grid-template-columns: 1fr;
  max-width: 40rem;
}


.section-next {
  margin: 1.5rem 0 0;
  padding-top: 1rem;
  border-top: 1px solid var(--line);
  max-width: 42em;
}
.section-next a {
  font-family: var(--display);
  font-weight: 700;
  font-size: 0.98rem;
  color: var(--reed-deep);
  text-decoration: none;
  border-bottom: 1px solid transparent;
}
.section-next a:hover {
  border-bottom-color: var(--reed);
}
.section--deep .section-next {
  margin-left: 0;
}

/* —— 疑い章のドラマ厚み —— */
.doubt-stage {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  gap: 0.85rem;
  align-items: stretch;
  margin: 1.4rem 0 1.6rem;
  max-width: 52em;
}
@media (max-width: 720px) {
  .doubt-stage { grid-template-columns: 1fr; }
  .doubt-vs { justify-self: center; }
}
.doubt-card {
  margin: 0;
  padding: 1.1rem 1.15rem 1.2rem;
  border: 1px solid var(--line);
  background: #fff;
}
.doubt-card--down { border-top: 3px solid #8a4a4a; }
.doubt-card--up { border-top: 3px solid var(--reed); }
.doubt-card__label {
  margin: 0 0 0.35rem;
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  color: var(--ink-soft);
}
.doubt-card h3 {
  margin: 0 0 0.55rem;
  font-family: var(--display);
  font-size: 1.25rem;
}
.doubt-card p {
  margin: 0;
  font-size: 0.92rem;
  color: var(--ink-soft);
  line-height: 1.75;
}
.doubt-vs {
  align-self: center;
  margin: 0;
  font-family: var(--display);
  font-size: 1.4rem;
  color: var(--silt);
}
.pull-quote--drama {
  border-left-color: var(--flare);
  background: linear-gradient(90deg, #fff6e8, #fafaf7);
}
.pull-quote--drama footer {
  margin-top: 0.65rem;
  font-size: 0.82rem;
  color: var(--ink-soft);
}
.doubt-bridge {
  margin: 2rem 0 0.5rem;
  padding: 1.35rem 1.35rem 1.45rem;
  max-width: 46em;
  background: var(--dusk);
  color: #eef2ea;
}
.doubt-bridge__eyebrow {
  margin: 0 0 0.4rem;
  font-size: 0.72rem;
  letter-spacing: 0.16em;
  color: rgba(238, 242, 234, 0.7);
}
.doubt-bridge h3 {
  margin: 0 0 0.7rem;
  font-family: var(--display);
  font-size: clamp(1.2rem, 2.6vw, 1.55rem);
  line-height: 1.45;
  color: #fff;
}
.doubt-bridge p {
  margin: 0 0 1.1rem;
  color: rgba(238, 242, 234, 0.88);
  line-height: 1.8;
}
.doubt-bridge__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem;
}
.doubt-bridge .button {
  border-color: rgba(255,255,255,0.35);
  color: #fff;
}
.doubt-bridge .button--solid {
  background: #fff;
  color: var(--dusk);
  border-color: #fff;
}

/* —— 年表：閉じたまま挿絵全面＋開く明示（高さは従来相当） —— */
.story-chapter > summary {
  position: relative;
  overflow: hidden;
  align-items: center;
  min-height: 5.1rem;
  padding: 0.85rem 1rem 0.85rem 1rem;
  gap: 0.65rem 0.85rem;
  color: #fff;
  isolation: isolate;
}
.story-chapter > summary::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, rgba(20, 28, 22, 0.82) 0%, rgba(20, 28, 22, 0.55) 55%, rgba(20, 28, 22, 0.35) 100%);
  z-index: 1;
  pointer-events: none;
}
.timeline__thumb {
  position: absolute;
  inset: 0;
  z-index: 0;
  margin: 0;
}
.timeline__thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  transform: scale(1.02);
}
.timeline__summary-copy {
  position: relative;
  z-index: 2;
  display: grid;
  gap: 0.15rem;
  flex: 1 1 auto;
  min-width: 0;
  padding-right: 0.25rem;
}
.story-chapter > summary .timeline__year {
  width: auto;
  color: rgba(255, 255, 255, 0.78);
  text-shadow: 0 1px 2px rgba(0,0,0,0.35);
}
.story-chapter > summary h3 {
  color: #fff;
  font-size: clamp(1.05rem, 2.2vw, 1.35rem);
  line-height: 1.35;
  text-shadow: 0 1px 3px rgba(0,0,0,0.4);
}
.timeline__open-hint {
  position: relative;
  z-index: 2;
  margin-left: auto;
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  flex: 0 0 auto;
  padding: 0.42rem 0.75rem;
  border: 1px solid rgba(255,255,255,0.55);
  background: rgba(255,255,255,0.14);
  backdrop-filter: blur(4px);
  font-family: var(--body);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: #fff;
  white-space: nowrap;
}
.timeline__open-icon {
  width: 0.55rem;
  height: 0.55rem;
  border-right: 2px solid #fff;
  border-bottom: 2px solid #fff;
  transform: rotate(45deg);
  margin-top: -0.15rem;
  transition: transform 0.2s ease;
}
.story-chapter[open] > summary .timeline__open-icon {
  transform: rotate(-135deg);
  margin-top: 0.15rem;
}
.story-chapter[open] > summary .timeline__open-hint {
  background: rgba(0,0,0,0.28);
}
/* CSS content の「＋ 開く」はチップに置き換えたので消す */
.story-chapter > summary::after {
  content: none !important;
}
.story-chapter > summary:hover {
  background: transparent;
}
.story-chapter > summary:hover .timeline__open-hint {
  background: rgba(255,255,255,0.28);
}
.story-chapter > summary:focus-visible {
  outline: 2px solid var(--flare);
  outline-offset: 2px;
}
@media (max-width: 560px) {
  .timeline__open-hint { letter-spacing: 0.04em; padding: 0.38rem 0.55rem; }
  .story-chapter > summary { min-height: 4.6rem; }
}

@media (max-width: 480px) {
  .story-chapter > summary {
    min-height: 5.25rem;
    padding-bottom: 0.95rem;
  }
  .story-chapter > summary h3 {
    font-size: clamp(0.98rem, 4.2vw, 1.15rem);
    line-height: 1.38;
  }
}