.reader-shell {
  width: min(var(--reader-width), calc(100vw - 40px));
  margin: 0 auto;
  padding: 42px 0 190px;
  position: relative;
}
.reader-crumb { display: flex; align-items: center; gap: 10px; font-family: var(--sans); font-size: 11.5px; color: var(--ink-faint); letter-spacing: .06em; }
.reader-crumb a:hover { color: var(--accent); }
.reader-crumb .dot { width: 3px; height: 3px; border-radius: 50%; background: var(--line-strong); }
.reader-crumb .spacer { flex: 1; }
.reader-crumb .read-progress { font-variant-numeric: tabular-nums; color: var(--accent); }

.chapter-header { position: relative; text-align: center; padding: 68px 0 44px; }
.chapter-numeral {
  position: absolute; top: 8px; left: 50%; transform: translateX(-50%);
  font-family: var(--sans); font-weight: 800; font-size: clamp(96px, 15vw, 168px); line-height: 1;
  letter-spacing: -.09em; color: var(--accent); opacity: .075; pointer-events: none; user-select: none;
}
.chapter-kicker { position: relative; font-family: var(--sans); font-size: 10.5px; letter-spacing: .36em; color: var(--accent); text-transform: uppercase; }
.chapter-title { position: relative; margin: 18px 0 20px; font-size: clamp(30px, 4.4vw, 46px); font-weight: 500; letter-spacing: .1em; line-height: 1.35; }
.chapter-ornament { position: relative; display: flex; align-items: center; justify-content: center; gap: 14px; color: var(--accent); opacity: .65; }
.chapter-ornament::before, .chapter-ornament::after { content: ''; width: 54px; height: 1px; background: var(--line-strong); }
.chapter-ornament i { width: 7px; height: 7px; transform: rotate(45deg); border: 1px solid var(--accent); }
.chapter-meta { position: relative; margin-top: 18px; font-family: var(--sans); font-size: 11px; color: var(--ink-faint); letter-spacing: .1em; }

.share-frame-head, .share-frame-foot { display: none; }
.chapter-body {
  position: relative;
  font-size: var(--reader-font-size);
  line-height: var(--reader-line-height);
  letter-spacing: var(--reader-letter-spacing);
  color: var(--ink);
}
.chapter-body p { margin: 0 0 1.25em; text-align: justify; text-justify: inter-ideograph; }
.chapter-body > p:first-of-type::first-letter {
  font-size: 2.05em; line-height: 1; float: left; margin: .08em .12em 0 0;
  color: var(--accent); font-weight: 600;
}
.chapter-body h1, .chapter-body h2, .chapter-body h3,
.chapter-body h4, .chapter-body h5, .chapter-body h6 {
  margin: 2.2em 0 .9em; line-height: 1.5; font-weight: 600; letter-spacing: .06em; color: var(--ink);
}
.chapter-body h1 { font-size: 1.7em; }
.chapter-body h2 { font-size: 1.4em; padding-left: 16px; border-left: 3px solid var(--accent); }
.chapter-body h3 { font-size: 1.2em; }
.chapter-body strong { color: var(--accent); font-weight: 700; }
.chapter-body em { font-style: normal; color: var(--ink-soft); border-bottom: 1px dotted var(--line-strong); }
.chapter-body mark { background: var(--accent-soft); color: var(--ink); padding: 0 .15em; border-radius: 3px; }
.chapter-body del { opacity: .55; }
.chapter-body a { color: var(--accent); border-bottom: 1px solid var(--accent); }
.chapter-body a:hover { background: var(--accent-soft); }

.md-quote {
  position: relative; margin: 1.9em 0; padding: 20px 26px 20px 34px; border: 0;
  background: var(--surface-2); border-left: 3px solid var(--accent); border-radius: 0 12px 12px 0;
  color: var(--ink-soft); font-size: .96em;
}
.md-quote::before { content: '「'; position: absolute; left: 8px; top: 4px; font-size: 26px; color: var(--accent); opacity: .35; }
.md-quote p { margin: 0 0 .45em !important; text-align: left !important; }
.md-quote p:last-child { margin-bottom: 0 !important; }
.md-quote p.md-quote-gap { height: .45em; margin: 0 !important; opacity: 0; }
.md-list { margin: 1.4em 0 1.7em; padding-left: 1.6em; }
.md-list li { margin: .5em 0; padding-left: .2em; }
.md-list li::marker { color: var(--accent); font-family: var(--sans); font-size: .85em; }
.md-hr { position: relative; height: 1px; border: 0; margin: 3.2em auto; width: 62%; background: var(--line); }
.md-hr::after { content: '◆'; position: absolute; left: 50%; top: 50%; transform: translate(-50%, -50%); background: var(--bg); padding: 0 14px; color: var(--accent); font-size: 9px; }
.md-table-wrap { overflow-x: auto; margin: 1.8em 0; border: 1px solid var(--line); border-radius: 12px; background: var(--surface-2); }
.md-table { width: 100%; border-collapse: collapse; font-family: var(--sans); font-size: .82em; }
.md-table th, .md-table td { padding: 11px 14px; border-bottom: 1px solid var(--line); text-align: left; white-space: nowrap; }
.md-table th { color: var(--accent); font-weight: 700; background: var(--accent-soft); }
.md-table tr:last-child td { border-bottom: 0; }
.md-pre { position: relative; margin: 1.8em 0; padding: 18px 20px; border-radius: 12px; background: var(--bg-soft); border: 1px solid var(--line); overflow-x: auto; font-family: var(--mono); font-size: .78em; line-height: 1.75; color: var(--ink-soft); }
.md-pre::before { content: attr(data-lang); position: absolute; right: 12px; top: 7px; font-family: var(--sans); font-size: 9px; letter-spacing: .16em; color: var(--ink-faint); text-transform: uppercase; }
.md-pre code { white-space: pre; }
.md-code { font-family: var(--mono); font-size: .86em; padding: .12em .4em; border-radius: 5px; background: var(--accent-soft); color: var(--accent); }
.md-img { max-width: 100%; border-radius: 10px; display: block; margin: 1.4em auto; }

.reader-end { display: flex; align-items: center; gap: 16px; margin: 70px 0 40px; color: var(--ink-faint); font-family: var(--sans); font-size: 11px; letter-spacing: .2em; }
.reader-end::before, .reader-end::after { content: ''; flex: 1; height: 1px; background: var(--line); }
.reader-nav { display: flex; gap: 12px; justify-content: space-between; }
.reader-nav .btn { min-width: 140px; }
.reader-nav .btn:disabled { opacity: .35; pointer-events: none; }

/* 字体方案 */
:root[data-font="sans"] .chapter-body { font-family: var(--sans); }
:root[data-font="mixed"] .chapter-body .md-h { font-family: var(--sans); }
:root[data-theme="magazine"] .chapter-body .md-h { font-family: var(--sans); letter-spacing: 0; }
:root[data-theme="magazine"] .chapter-title { font-family: var(--sans); font-weight: 700; letter-spacing: .02em; }
:root[data-theme="night"] .chapter-body { text-shadow: 0 0 22px rgba(226, 214, 190, .05); }

/* ---------- 分享模式：隐藏操作界面，给内容加可截图的卡片框 ---------- */
body.share-mode .topbar,
body.share-mode .reader-dock,
body.share-mode .top-progress,
body.share-mode .ambient { opacity: 0; pointer-events: none; }
body.share-mode main { padding-top: 0; }
body.share-mode .reader-shell { width: min(760px, calc(100vw - 40px)); padding-top: 88px; }
body.share-mode .chapter-body {
  padding: 42px clamp(24px, 5vw, 56px); border-radius: 20px;
  background: var(--surface-solid); border: 1px solid var(--line);
  box-shadow: var(--shadow); font-size: calc(var(--reader-font-size) * 1.12);
}
body.share-mode .chapter-header { padding-top: 30px; }
body.share-mode .share-frame-head, body.share-mode .share-frame-foot { display: flex; }
.share-frame-head { align-items: center; justify-content: space-between; font-family: var(--sans); font-size: 11px; letter-spacing: .16em; color: var(--ink-faint); padding-bottom: 14px; }
.share-frame-foot { align-items: center; justify-content: space-between; font-family: var(--sans); font-size: 10.5px; letter-spacing: .18em; color: var(--ink-faint); padding-top: 18px; }
.share-frame-head .seal { width: 26px; height: 26px; border-radius: 7px; display: grid; place-items: center; background: var(--accent); color: var(--surface-solid); font-size: 14px; }
body.share-mode .reader-crumb, body.share-mode .reader-end, body.share-mode .reader-nav { display: none; }
body.share-mode .chapter-body ::selection { background: var(--accent); color: var(--surface-solid); }

@media (max-width: 620px) {
  .reader-shell { width: calc(100vw - 32px); padding-top: 28px; }
  .chapter-header { padding: 44px 0 32px; }
  .md-quote { padding: 16px 18px 16px 26px; }
}