html { font-size: 18px; }
body.kindle {
  margin: 0;
  background: #fff;
  color: #000;
  font-family: "Songti SC", "Noto Serif CJK SC", Palatino, Georgia, serif;
  line-height: 1.6;
  -webkit-text-size-adjust: 100%;
}
h1 {
  margin: 12px 16px;
  font-size: 1.6rem;
  font-weight: 500;
}
.back, .where, .by, .caption { margin: 12px 16px; }
.where, .by { color: #222; }
.picture {
  display: block;
  width: 100%;
  height: auto;
  background: #fff;
}
.turn { margin: 8px 16px 16px; }
.turn a, .back a, .card {
  color: #000;
  text-decoration: none;
}
/* Big bordered rows stay tappable on an e-ink screen. */
.turn a {
  display: block;
  margin: 8px 0;
  padding: 18px 12px;
  border: 2px solid #000;
  text-align: center;
  font-size: 1.3rem;
}
.turn a:active { background: #e8e8e8; }
/* Jump back to the cover or the index stays quiet so the picture gets the screen. */
.turn .minor {
  display: inline-block;
  margin: 8px 8px 0;
  padding: 8px 14px;
  border: 1px solid #666;
  font-size: 1rem;
  color: #333;
}
.card {
  display: block;
  margin: 0 16px 20px;
  padding-bottom: 12px;
  border-bottom: 1px solid #000;
}
.card img {
  display: block;
  width: 100%;
  height: auto;
  background: #fff;
}
.card .name { display: block; margin-top: 8px; font-size: 1.3rem; }
.card .meta { display: block; }
.empty { margin: 16px; }
.toc {
  margin: 0 16px 24px;
  padding: 0;
  list-style: none;
  columns: 3;
}
.toc li { break-inside: avoid; margin: 0; }
.toc a {
  display: block;
  padding: 12px 4px;
  border-bottom: 1px solid #999;
  color: #000;
  text-decoration: none;
  text-align: center;
  font-size: 1.1rem;
}
pre {
  margin: 8px 16px;
  padding: 10px;
  border: 1px solid #000;
  font-size: 0.85rem;
  white-space: pre-wrap;
  word-break: break-all;
}