/* ================================================================
   『一九〇〇年前後のベルリンの幼年時代』刊行記念サイト 共通スタイル
   配色は収録地図に由来:
   台紙 #EFE7D3 / 墨 #2A2621 / 経路朱 #A23B32 / 公園緑 #B7C6A8
   水面青 #9DBECC / 街路オークル #E3D3A9
   ================================================================ */

:root {
  --paper: #efe7d3;
  --paper-deep: #e6dbbf;
  --ink: #2a2621;
  --ink-soft: #57503f;
  --route: #a23b32;
  --route-deep: #7f2c25;
  --park: #b7c6a8;
  --park-deep: #8ea37c;
  --water: #9dbecc;
  --sand: #e3d3a9;
  --line: #b9ab8a;
  --serif-jp: "Shippori Mincho", "Hiragino Mincho ProN", "Yu Mincho",
    "Noto Serif JP", serif;
  --serif-latin: "EB Garamond", Georgia, "Times New Roman", serif;
  --maxw: 62rem;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation: none !important; transition: none !important; }
}

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--serif-jp);
  font-size: 1.0625rem;
  line-height: 2;
  font-feature-settings: "palt";
  /* 地図台紙のごく淡い紙目 */
  background-image:
    radial-gradient(circle at 18% 12%, rgba(183,198,168,0.14), transparent 42%),
    radial-gradient(circle at 82% 88%, rgba(157,190,204,0.12), transparent 46%);
  background-attachment: fixed;
}

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

a { color: var(--route-deep); text-decoration-color: rgba(162,59,50,0.5); text-underline-offset: 3px; }
a:hover { color: var(--route); }
a:focus-visible, button:focus-visible {
  outline: 2px solid var(--route);
  outline-offset: 3px;
}

ruby rt { font-size: 0.5em; letter-spacing: 0.05em; }

/* ---------------- 頁枠 ---------------- */
.frame {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 0 1.4rem 4rem;
}

/* ---------------- カルトゥーシュ（題字枠） ---------------- */
header.cartouche {
  max-width: var(--maxw);
  margin: 2.2rem auto 0;
  padding: 0 1.4rem;
}
.cartouche-box {
  border: 1.5px solid var(--ink);
  box-shadow: 0 0 0 4px var(--paper), 0 0 0 5.5px var(--ink);
  padding: 2rem 1.6rem 1.7rem;
  text-align: center;
  background: linear-gradient(180deg, rgba(227,211,169,0.35), rgba(239,231,211,0) 55%);
  position: relative;
}
.cartouche-box .ueber {
  font-family: var(--serif-latin);
  font-size: 0.78rem;
  letter-spacing: 0.42em;
  text-transform: uppercase;
  color: var(--ink-soft);
  margin: 0 0 0.9rem;
}
.cartouche-box h1 {
  margin: 0;
  font-size: clamp(1.5rem, 3.6vw, 2.3rem);
  font-weight: 700;
  letter-spacing: 0.12em;
  line-height: 1.7;
}
.cartouche-box h1 .autor {
  display: block;
  font-size: 0.62em;
  font-weight: 500;
  letter-spacing: 0.3em;
  margin-bottom: 0.45em;
}
.cartouche-box .unter {
  margin: 0.9rem 0 0;
  font-size: 0.92rem;
  letter-spacing: 0.16em;
  color: var(--ink-soft);
}

/* ---------------- 点線経路ナビ（署名モチーフ） ---------------- */
nav.route {
  max-width: var(--maxw);
  margin: 1.6rem auto 2.8rem;
  padding: 0 1.4rem;
}
nav.route ol {
  list-style: none;
  margin: 0;
  padding: 0.4rem 0;
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.4rem 0;
  position: relative;
}
nav.route li {
  display: flex;
  align-items: center;
}
nav.route li + li::before {
  /* 動物園図のルントガング（巡回路）の点線 */
  content: "";
  display: inline-block;
  width: 3.4rem;
  height: 0;
  margin: 0 0.55rem;
  border-top: 3px dotted var(--route);
  opacity: 0.85;
}
nav.route a {
  text-decoration: none;
  letter-spacing: 0.14em;
  font-size: 0.98rem;
  color: var(--ink);
  padding: 0.15rem 0.1rem;
  border-bottom: 3px dotted transparent;
}
nav.route a:hover { color: var(--route-deep); border-bottom-color: var(--route); }
nav.route a[aria-current="page"] {
  color: var(--route-deep);
  border-bottom-color: var(--route);
}
@media (max-width: 40rem) {
  nav.route li + li::before { width: 1.4rem; margin: 0 0.4rem; }
  nav.route a { font-size: 0.9rem; }
}

/* ---------------- 見出し ---------------- */
h2.abschnitt {
  font-size: 1.35rem;
  letter-spacing: 0.2em;
  font-weight: 700;
  margin: 3.2rem 0 1.4rem;
  padding-bottom: 0.5rem;
  border-bottom: 1px solid var(--ink);
  position: relative;
}
h2.abschnitt::after {
  content: "";
  position: absolute;
  left: 0; bottom: -4px;
  width: 6.5rem;
  border-bottom: 3px dotted var(--route);
}
h2.abschnitt .latin {
  font-family: var(--serif-latin);
  font-weight: 400;
  font-style: italic;
  font-size: 0.78em;
  letter-spacing: 0.06em;
  color: var(--ink-soft);
  margin-left: 0.9rem;
}
h3 {
  font-size: 1.08rem;
  letter-spacing: 0.12em;
  margin: 2.2rem 0 0.8rem;
}

p.hinweis {
  font-size: 0.9rem;
  color: var(--ink-soft);
  line-height: 1.9;
}

/* 編集用の仮置き箇所 */
.platzhalter {
  background: rgba(227,211,169,0.55);
  border: 1px dashed var(--line);
  padding: 0.05em 0.4em;
  border-radius: 2px;
  color: var(--ink-soft);
}

/* ---------------- トップ：書誌ブロック ---------------- */
.buch {
  display: grid;
  grid-template-columns: minmax(11rem, 15rem) 1fr;
  gap: 2.4rem;
  align-items: start;
  margin-top: 2.6rem;
}
@media (max-width: 44rem) {
  .buch { grid-template-columns: 1fr; }
  .buch .schutzumschlag { max-width: 15rem; margin: 0 auto; }
}
.schutzumschlag {
  aspect-ratio: 128 / 188; /* 四六判比 */
  border: 1.5px solid var(--ink);
  box-shadow: 6px 6px 0 rgba(42,38,33,0.16);
  background:
    linear-gradient(160deg, var(--sand), var(--paper-deep) 60%, var(--park) 140%);
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 1rem;
  color: var(--ink-soft);
  font-size: 0.85rem;
  letter-spacing: 0.15em;
  line-height: 2.1;
}
.bibliografie {
  margin: 1.6rem 0 0;
  padding: 0;
  list-style: none;
  font-size: 0.94rem;
  color: var(--ink-soft);
}
.bibliografie li {
  padding: 0.32rem 0;
  border-bottom: 1px dotted var(--line);
  display: flex;
  gap: 1.2rem;
}
.bibliografie .feld {
  flex: 0 0 6.5em;
  letter-spacing: 0.22em;
  color: var(--ink);
}

/* ---------------- 目次 ---------------- */
.inhalt ol {
  list-style: none;
  margin: 0;
  padding: 0;
  columns: 2;
  column-gap: 3rem;
}
@media (max-width: 44rem) { .inhalt ol { columns: 1; } }
.inhalt li {
  break-inside: avoid;
  padding: 0.42rem 0;
  border-bottom: 1px dotted var(--line);
  display: flex;
  align-items: baseline;
  gap: 0.8rem;
  font-size: 0.98rem;
}
.inhalt .nr {
  font-family: var(--serif-latin);
  font-variant-numeric: oldstyle-nums;
  color: var(--route-deep);
  flex: 0 0 2em;
  text-align: right;
}
.inhalt li.teil {
  border-bottom: 1px solid var(--ink);
  letter-spacing: 0.22em;
  font-weight: 700;
  margin-top: 0.9rem;
}

/* ---------------- 分岐カード ---------------- */
.zweige {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(15rem, 1fr));
  gap: 1.4rem;
  margin-top: 1.8rem;
}
.zweig {
  border: 1.5px solid var(--ink);
  background: rgba(255,252,243,0.55);
  padding: 1.3rem 1.4rem 1.5rem;
  text-decoration: none;
  color: var(--ink);
  position: relative;
  transition: transform 0.18s ease, box-shadow 0.18s ease;
}
.zweig:hover {
  transform: translateY(-3px);
  box-shadow: 5px 6px 0 rgba(162,59,50,0.22);
  color: var(--ink);
}
.zweig .kennziffer {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 1.9rem;
  height: 1.9rem;
  border: 1.5px solid var(--ink);
  background: #fff;
  font-family: var(--serif-latin);
  font-size: 1.05rem;
  margin-bottom: 0.7rem;
}
.zweig h3 { margin: 0 0 0.5rem; font-size: 1.12rem; letter-spacing: 0.18em; }
.zweig p { margin: 0; font-size: 0.9rem; color: var(--ink-soft); line-height: 1.9; }
.zweig .weiter {
  display: inline-block;
  margin-top: 0.9rem;
  font-size: 0.85rem;
  letter-spacing: 0.2em;
  color: var(--route-deep);
  border-bottom: 3px dotted var(--route);
  padding-bottom: 2px;
}

/* ---------------- 地図一覧 ---------------- */
.karten { display: grid; gap: 2.6rem; margin-top: 2rem; }
.karte {
  display: grid;
  grid-template-columns: minmax(15rem, 24rem) 1fr;
  gap: 1.8rem;
  border-top: 1px solid var(--ink);
  padding-top: 1.6rem;
}
@media (max-width: 50rem) { .karte { grid-template-columns: 1fr; } }
.karte figure { margin: 0; }
.karte .rahmen {
  border: 1.5px solid var(--ink);
  background: #fff;
  padding: 6px;
  cursor: zoom-in;
  display: block;
  width: 100%;
}
.karte .rahmen:hover { box-shadow: 5px 6px 0 rgba(162,59,50,0.22); }
.karte .rahmen img { width: 100%; }
.kartenkopf {
  display: flex;
  align-items: baseline;
  gap: 0.9rem;
  margin: 0 0 0.6rem;
}
.kartenkopf .marke {
  /* 地図中の白抜き番号標に倣う */
  flex: 0 0 auto;
  border: 1.5px solid var(--ink);
  background: #fff;
  padding: 0.05rem 0.5rem;
  font-family: var(--serif-latin);
  font-size: 1rem;
  letter-spacing: 0.04em;
}
.kartenkopf h3 { margin: 0; font-size: 1.12rem; letter-spacing: 0.1em; line-height: 1.8; }
.karte .jahr {
  font-family: var(--serif-latin);
  font-style: italic;
  color: var(--ink-soft);
  margin-left: 0.4rem;
  letter-spacing: 0.05em;
}
.karte p { margin: 0.3rem 0 0; font-size: 0.94rem; line-height: 1.95; }
.karte details {
  margin-top: 0.9rem;
  font-size: 0.9rem;
  border: 1px dashed var(--line);
  padding: 0.55rem 0.9rem;
  background: rgba(255,252,243,0.5);
}
.karte summary { cursor: pointer; letter-spacing: 0.15em; color: var(--ink-soft); }
.karte details ul { margin: 0.6rem 0 0.2rem; padding-left: 1.4rem; }
.karte .quelle {
  margin-top: 0.8rem;
  font-size: 0.82rem;
  color: var(--ink-soft);
}
.karte .lupe {
  display: inline-block;
  margin-top: 0.9rem;
  font-size: 0.88rem;
  letter-spacing: 0.18em;
  border: 1.5px solid var(--ink);
  background: #fff;
  padding: 0.35rem 1rem;
  cursor: zoom-in;
  font-family: inherit;
  color: var(--ink);
}
.karte .lupe:hover { background: var(--sand); }

/* ---------------- ビューア ---------------- */
.viewer {
  position: fixed;
  inset: 0;
  z-index: 60;
  background: rgba(28,24,19,0.93);
  display: none;
  flex-direction: column;
}
.viewer.offen { display: flex; }
.viewer-kopf {
  display: flex;
  align-items: center;
  gap: 0.8rem;
  padding: 0.7rem 1rem;
  color: var(--paper);
  font-size: 0.92rem;
  letter-spacing: 0.1em;
  background: rgba(0,0,0,0.35);
}
.viewer-kopf .titel { flex: 1 1 auto; min-width: 0; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.viewer-kopf button {
  flex: 0 0 auto;
  font-family: var(--serif-jp);
  font-size: 0.95rem;
  border: 1px solid rgba(239,231,211,0.7);
  background: transparent;
  color: var(--paper);
  padding: 0.28rem 0.75rem;
  cursor: pointer;
  letter-spacing: 0.1em;
}
.viewer-kopf button:hover { background: rgba(239,231,211,0.18); }
.viewer-buehne {
  flex: 1 1 auto;
  overflow: hidden;
  position: relative;
  touch-action: none;
  cursor: grab;
  user-select: none;
  -webkit-user-select: none;
}
.viewer-buehne.greift { cursor: grabbing; }
.viewer-buehne img {
  position: absolute;
  top: 0; left: 0;
  transform-origin: 0 0;
  max-width: none;
  touch-action: none;      /* タッチ端末：ブラウザのジェスチャー横取りを禁止 */
  user-select: none;
  -webkit-user-select: none;
  -webkit-user-drag: none; /* Chrome/Safari：画像の既定ドラッグを禁止 */
  -webkit-touch-callout: none;
  image-rendering: auto;
  will-change: transform;
}
.viewer-fuss {
  color: rgba(239,231,211,0.75);
  font-size: 0.8rem;
  text-align: center;
  padding: 0.45rem 1rem 0.6rem;
  letter-spacing: 0.12em;
  background: rgba(0,0,0,0.35);
}
.viewer-lade {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  color: rgba(239,231,211,0.8);
  letter-spacing: 0.3em;
  font-size: 0.9rem;
  pointer-events: none;
}

/* ---------------- 表（正誤表など） ---------------- */
table.tafel {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.94rem;
  margin: 1.2rem 0;
}
table.tafel th, table.tafel td {
  border: 1px solid var(--line);
  padding: 0.5rem 0.8rem;
  text-align: left;
  vertical-align: top;
  line-height: 1.8;
}
table.tafel th {
  background: rgba(227,211,169,0.5);
  letter-spacing: 0.18em;
  font-weight: 500;
}

/* ---------------- リンク集 ---------------- */
ul.verweise { list-style: none; margin: 1rem 0; padding: 0; }
ul.verweise li {
  padding: 0.7rem 0;
  border-bottom: 1px dotted var(--line);
}
ul.verweise .wozu {
  display: block;
  font-size: 0.85rem;
  color: var(--ink-soft);
  margin-top: 0.15rem;
}

/* ---------------- 図版元画像：準備中の区画 ---------------- */
.leer {
  border: 1.5px dashed var(--line);
  background: rgba(255,252,243,0.5);
  padding: 2.2rem 1.6rem;
  text-align: center;
  color: var(--ink-soft);
  letter-spacing: 0.12em;
  margin-top: 1.6rem;
}

/* ---------------- 奥付 ---------------- */
footer.impressum {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 2rem 1.4rem 3rem;
  border-top: 1px solid var(--ink);
  font-size: 0.82rem;
  color: var(--ink-soft);
  letter-spacing: 0.1em;
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem 2rem;
  justify-content: space-between;
}
footer.impressum .latin { font-family: var(--serif-latin); font-style: italic; }

/* ---------------- 図版元画像：章目次 ---------------- */
.fig-inhalt {
  border: 1.5px solid var(--ink);
  background: rgba(255,252,243,0.55);
  padding: 1.1rem 1.5rem 1.3rem;
  margin: 2rem 0 1rem;
}
.fig-inhalt h3 {
  margin: 0.9rem 0 0.4rem;
  font-size: 0.95rem;
  letter-spacing: 0.22em;
  color: var(--route-deep);
}
.fig-inhalt h3:first-child { margin-top: 0; }
.fig-inhalt ul {
  list-style: none;
  margin: 0; padding: 0;
  display: flex; flex-wrap: wrap;
  gap: 0.3rem 0;
  font-size: 0.93rem;
  align-items: baseline;
}
.fig-inhalt li { display: flex; align-items: baseline; }
.fig-inhalt li + li::before {
  content: "";
  display: inline-block;
  width: 1.6rem;
  border-top: 3px dotted var(--route);
  opacity: 0.7;
  margin: 0 0.6rem;
}
.fig-inhalt a { text-decoration: none; border-bottom: 1px dotted var(--route); color: var(--ink); }
.fig-inhalt a:hover { color: var(--route-deep); }

/* ---------------- 図版画像：部（訳註・補説の別）と章の見出し ---------------- */
.teil { margin-top: 3.4rem; }
h2.abschnitt.teil-kopf {
  font-size: 1.28rem;
  letter-spacing: 0.24em;
  border-bottom-width: 3px;
  margin-bottom: 0.4rem;
}
h3.kapitel {
  font-size: 1.1rem;
  letter-spacing: 0.14em;
  font-weight: 700;
  margin: 2.6rem 0 0.2rem;
  padding-left: 0.9rem;
  border-left: 4px solid var(--park-deep);
  line-height: 1.9;
}
h3.kapitel + .karten { margin-top: 0.9rem; }
.teil .karten { gap: 2.2rem; }

/* 章目次：部ごとの見出しつき */
.fig-inhalt h3 a { color: inherit; text-decoration: none; border-bottom: 1px dotted var(--route); }
.fig-inhalt h3 a:hover { color: var(--route); }
.fig-inhalt ul + h3 { margin-top: 1.1rem; }

/* ---------------- 地図：参考図（全図など） ---------------- */
.referenz {
  margin-top: 1.4rem;
  padding-top: 1.1rem;
  border-top: 1px dotted var(--line);
}
.referenz .ref-titel {
  margin: 0 0 0.6rem;
  font-size: 0.9rem;
  letter-spacing: 0.16em;
  color: var(--ink-soft);
  font-weight: 700;
}
.referenz .rahmen { max-width: 100%; }
.referenz .hinweis { margin: 0.6rem 0 0; }
/* Final test additions */
.schutzumschlag { margin: 0; padding: 0; aspect-ratio: auto; display: block; line-height: 0; }
.schutzumschlag img { display: block; width: 100%; height: auto; }
.inhalt h3 { margin: 2.2rem 0 1rem; }
.inhalt h4 { margin: 1.6rem 0 0.7rem; font-size: 1.05rem; }
.karte > div, .buch > div, .kartenkopf h3 { min-width: 0; }
.quelle, .verweise { overflow-wrap: anywhere; }
@media (max-width: 32rem) {
  .viewer-kopf { flex-wrap: wrap; gap: 0.45rem; padding: 0.6rem; }
  .viewer-kopf .titel { flex-basis: 100%; }
  .viewer-kopf button { padding: 0.4rem 0.6rem; }
}

/* Bibliographic titles in source credits. */
.quelle cite { font-style: italic; }

/* ---------------- 朗読動画 ---------------- */
.lesung {
  display: grid;
  grid-template-columns: minmax(16rem, 30rem) 1fr;
  gap: 1.8rem;
  border-top: 1px solid var(--ink);
  padding-top: 1.6rem;
  margin-top: 2.2rem;
  scroll-margin-top: 1rem;
}
h2.abschnitt + .lesung { margin-top: 1.2rem; border-top: 0; padding-top: 0.4rem; }
@media (max-width: 50rem) { .lesung { grid-template-columns: 1fr; } }
.lesung-text { min-width: 0; }
.lesung h3 { margin: 0 0 0.3rem; font-size: 1.18rem; letter-spacing: 0.14em; line-height: 1.8; }
.lesung h3 .latin {
  font-family: var(--serif-latin); font-style: italic; font-weight: 400;
  font-size: 0.85em; letter-spacing: 0.04em; color: var(--ink-soft); margin-left: 0.8rem;
}
.lesung .angaben { margin: 0 0 0.7rem; font-size: 0.88rem; letter-spacing: 0.08em; color: var(--ink-soft); }
.lesung p { margin: 0.4rem 0; font-size: 0.96rem; line-height: 1.95; }
.lesung p.aufbau { font-size: 0.9rem; color: var(--ink-soft); }
.film {
  position: relative;
  aspect-ratio: 16 / 9;
  border: 1.5px solid var(--ink);
  background: #0b0a09;
  overflow: hidden;
  align-self: start;
}
.film img { width: 100%; height: 100%; object-fit: cover; cursor: pointer; }
.film iframe { position: absolute; inset: 0; width: 100%; height: 100%; border: 0; }
.film .abspielen {
  position: absolute; left: 50%; top: 50%;
  width: 4.2rem; height: 4.2rem; margin: -2.1rem 0 0 -2.1rem;
  border-radius: 50%;
  border: 2px solid rgba(255,252,243,0.9);
  background: rgba(127,44,37,0.82);
  cursor: pointer;
  transition: transform 0.15s ease, background 0.15s ease;
}
.film .abspielen::after {
  content: ""; position: absolute; left: 52%; top: 50%;
  transform: translate(-40%, -50%);
  border-style: solid; border-width: 0.75rem 0 0.75rem 1.2rem;
  border-color: transparent transparent transparent #fffcf3;
}
.film .abspielen:hover { transform: scale(1.06); background: rgba(162,59,50,0.92); }
.film .wartet-marke { display: none; }
.film.wartet img { cursor: default; filter: saturate(0.7); }
.film.wartet .abspielen { display: none; }
.film.wartet .wartet-marke {
  display: block; position: absolute; right: 0.6rem; bottom: 0.5rem;
  font-size: 0.8rem; letter-spacing: 0.2em; color: #fffcf3;
  background: rgba(42,38,33,0.72); padding: 0.1rem 0.7rem;
}
.sr { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
.lesung .yt-link {
  display: inline-block; margin-top: 0.5rem; font-size: 0.86rem; letter-spacing: 0.16em;
  text-decoration: none; border-bottom: 3px dotted var(--route); padding-bottom: 2px;
}
.lesung .yt-link[hidden] { display: none; }
.nachweis {
  margin-top: 0.9rem; font-size: 0.86rem;
  border: 1px dashed var(--line); padding: 0.55rem 0.9rem;
  background: rgba(255,252,243,0.5);
}
.nachweis summary { cursor: pointer; letter-spacing: 0.15em; color: var(--ink-soft); }
.nachweis dl { margin: 0.6rem 0 0.2rem; line-height: 1.85; }
.nachweis dt { font-weight: 700; letter-spacing: 0.12em; margin-top: 0.5rem; }
.nachweis dd { margin: 0 0 0.15rem 1.2rem; overflow-wrap: anywhere; }
.nachweis cite { font-style: italic; }
p.playlist { margin: 1.2rem 0 0; }
.playlist-link {
  display: inline-block; font-size: 0.95rem; letter-spacing: 0.14em;
  border: 1.5px solid var(--ink); background: #fff; padding: 0.4rem 1.1rem; text-decoration: none; color: var(--ink);
}
.playlist-link:hover { box-shadow: 5px 6px 0 rgba(162,59,50,0.22); color: var(--route-deep); }
.playlist-link[hidden], .playlist-wartet[hidden] { display: none; }
.playlist-wartet { font-size: 0.9rem; color: var(--ink-soft); }
@media (max-width: 40rem) {
  nav.route li + li::before { width: 1rem; margin: 0 0.3rem; }
  nav.route a { letter-spacing: 0.08em; }
}
/* 朗読動画：YouTube と同じ長いタイトル、出典の項目名 */
.lesung h3 { font-size: 1.04rem; letter-spacing: 0.06em; line-height: 1.75; }
.nachweis dd { margin-bottom: 0.55rem; }
.nachweis .posten { font-weight: 700; }

/* 索引冊子のダウンロード */
.sakuin-heft { margin: 1.2rem 0 0; padding: 0.9rem 1.2rem 0.8rem; border: 1px dashed var(--line); background: rgba(255,252,243,0.5); }
.inhalt h3.sakuin-titel { margin: 0 0 0.3rem; font-size: 1rem; letter-spacing: 0.12em; }
.sakuin-heft p.hinweis { margin: 0.2rem 0 0.6rem; }
.dl-liste { list-style: none; margin: 0; padding: 0; }
.inhalt .dl-liste li { display: block; margin: 0.25rem 0; padding: 0.2rem 0 0.2rem 1.3rem; text-indent: -1.3rem; border-bottom: 0; gap: 0; font-size: 0.95rem; line-height: 1.75; }
.dl-liste li::before { content: "↓"; display: inline-block; width: 1.3rem; text-indent: 0; color: var(--route); }
.dl-liste .dl-info { margin-left: 0.8rem; font-size: 0.82rem; color: var(--ink-soft); }
@media (max-width: 40rem) { .dl-liste .dl-info { display: block; margin-left: 0; text-indent: 0; } }

/* 本書への導線（図版ページ・地図ページ） */
p.seitenrolle { border-left: 3px solid var(--route); padding: 0.2rem 0 0.2rem 0.9rem; }
.zum-text { margin: -0.4rem 0 1rem; font-size: 0.86rem; color: var(--ink-soft); letter-spacing: 0.04em; }
.zum-text::before { content: "→ "; color: var(--route); }
.buch-hinweis { display: flex; gap: 1.4rem; align-items: flex-start; margin: 3.2rem 0 1rem; padding: 1.2rem 1.4rem;
  border-top: 1px solid var(--ink); border-bottom: 1px solid var(--ink); background: rgba(255,252,243,0.55); }
.buch-hinweis .bh-cover { flex: 0 0 96px; }
.buch-hinweis .bh-cover img { width: 96px; height: auto; display: block; box-shadow: 0 2px 6px rgba(0,0,0,0.18); }
.buch-hinweis p { margin: 0.25rem 0; line-height: 1.8; }
.buch-hinweis .bh-titel { font-weight: 700; letter-spacing: 0.04em; }
.buch-hinweis .bh-daten { font-size: 0.86rem; color: var(--ink-soft); }
.buch-hinweis .bh-links { margin-top: 0.6rem; display: flex; flex-wrap: wrap; gap: 0.4rem 1.6rem; }
.buch-hinweis .bh-links a::before { content: "→ "; color: var(--route); }
@media (max-width: 40rem) { .buch-hinweis { flex-direction: column; } .buch-hinweis .bh-cover { flex-basis: auto; } }

/* 図版ページ：訳文の一節 */
blockquote.zitat { margin: 0.5rem 0 0.7rem; padding: 0.45rem 0 0.45rem 0.9rem; border-left: 2px solid var(--route);
  font-size: 0.93rem; line-height: 1.95; color: var(--ink); }
blockquote.zitat p { margin: 0; }
blockquote.zitat p::before { content: "「"; } blockquote.zitat p::after { content: "」"; }
blockquote.zitat cite { display: block; margin-top: 0.15rem; font-style: normal; font-size: 0.8rem; color: var(--ink-soft); }
blockquote.zitat cite::before { content: "――"; }
blockquote.zitat rt { font-size: 0.55em; }