@charset "UTF-8";
.reader-page { background: var(--paper); }
.reader-heading, .reader-layout, .reader-footer { max-width: 1160px; margin: auto; padding-left: 40px; padding-right: 40px; }
.reader-heading { padding-top: 36px; padding-bottom: 50px; }
.reader-breadcrumb { display: flex; flex-wrap: wrap; align-items: center; gap: 12px; margin-bottom: 54px; color: var(--muted); font-size: 12px; }
.reader-breadcrumb a:hover { color: var(--navy); text-decoration: underline; }
.reader-heading h1 { max-width: 940px; margin: 0; font-size: clamp(32px, 4.3vw, 56px); line-height: 1.3; letter-spacing: -.045em; text-wrap: balance; overflow-wrap: anywhere; }
.reader-subtitle { color: var(--muted); font-size: 13px; line-height: 1.6; letter-spacing: .04em; }
.reader-meta { display: flex; flex-wrap: wrap; gap: 10px 24px; margin: 26px 0; color: var(--muted); font-size: 12px; line-height: 1.7; }
.reader-description { max-width: 840px; margin: 0; font-size: 16px; line-height: 1.9; color: var(--muted); }
.reader-notice { max-width: 920px; margin-top: 30px; padding: 18px 22px; border-left: 3px solid var(--gold); background: #f0eee3; font-size: 12px; line-height: 1.85; color: var(--muted); }
.reader-notice strong { color: var(--navy); font-size: 13px; }
.reader-notice p { margin: 6px 0 0; }
.reader-layout { display: grid; grid-template-columns: 235px minmax(0, 1fr); gap: 64px; padding-bottom: 90px; align-items: start; }
.reader-aside { position: sticky; top: 118px; max-height: calc(100dvh - 144px); overflow-y: auto; padding: 4px; }
.reader-toc { border-top: 2px solid var(--navy); }
.reader-toc summary { padding: 20px 0; color: var(--navy); cursor: pointer; font-size: 13px; font-weight: 800; }
.reader-toc nav { display: grid; gap: 2px; padding-bottom: 18px; }
.reader-toc a { padding: 9px 10px; color: var(--muted); font-size: 12px; line-height: 1.65; border-left: 2px solid var(--line); }
.reader-toc a:hover { border-color: #a87508; color: var(--navy); background: #eeeee7; }
.reader-back { display: inline-block; padding: 14px 0; color: var(--navy); font-size: 12px; font-weight: 750; text-decoration: underline; text-underline-offset: 5px; }
.reader-content { min-width: 0; font-size: 16px; line-height: 1.95; overflow-wrap: anywhere; }
.reader-content:focus-visible { outline: 3px solid var(--gold); outline-offset: 8px; }
.reader-intro { padding: 28px; background: var(--navy); color: var(--white); border-top: 4px solid var(--gold); }
.reader-content h2 { font-size: 25px; line-height: 1.5; letter-spacing: -.025em; margin: 0 0 22px; }
.reader-intro h2 { font-size: 23px; color: var(--white); }
.reader-intro p { margin: 0; color: #dce4e7; }
.reader-section { padding: 38px 0; border-bottom: 1px solid #ccd3cd; scroll-margin-top: 105px; }
.reader-section > :last-child { margin-bottom: 0; }
.reader-section h3 { margin: 25px 0 10px; font-size: 18px; line-height: 1.65; }
.reader-section p { margin: 0 0 18px; }
.reader-section ul, .reader-section ol { padding-left: 1.5em; }
.reader-section li + li { margin-top: 13px; }
.reader-section a { text-decoration: underline; text-underline-offset: 4px; }
.reader-comparison { display: grid; gap: 12px; }
.reader-comparison > div { padding: 20px; background: #eeeee7; border-left: 2px solid #b8c2b8; }
.reader-section .reader-original-note { padding: 20px; background: #f2ebd7; color: #4f4b3e; font-size: 13px; line-height: 1.9; }
.reader-section table { width: 100%; border-collapse: collapse; font-size: 13px; }
.reader-section th, .reader-section td { padding: 10px; border: 1px solid var(--line); text-align: left; }
.reader-source { margin: 30px 0; padding: 20px 0; color: var(--muted); font-size: 12px; line-height: 1.8; }
.reader-source strong { color: var(--navy); }
.reader-source p { margin: 8px 0 0; }
.reader-related { padding: 28px; background: #eeeee7; }
.reader-related h2 { font-size: 21px; }
.reader-related ul { list-style: none; padding: 0; margin: 0; }
.reader-related li + li { border-top: 1px solid #ccd3cd; }
.reader-related a { display: block; padding: 13px 0; font-size: 14px; line-height: 1.75; }
.reader-related a:hover { text-decoration: underline; text-underline-offset: 4px; }
.reader-pagination { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 25px; margin: 35px 0 20px; }
.reader-pagination a { padding-top: 18px; border-top: 2px solid var(--navy); }
.reader-pagination span { display: block; color: var(--muted); font-size: 11px; }
.reader-pagination strong { display: block; font-size: 14px; line-height: 1.75; margin-top: 8px; }
.reader-footer { display: flex; flex-wrap: wrap; gap: 20px; justify-content: space-between; border-top: 1px solid var(--line); padding-top: 25px; padding-bottom: 35px; color: var(--muted); font-size: 11px; }
@media (max-width: 900px) {
  .reader-layout { grid-template-columns: 190px minmax(0, 1fr); gap: 30px; }
}
@media (max-width: 700px) {
  .reader-heading, .reader-layout, .reader-footer { padding-left: 22px; padding-right: 22px; }
  .reader-heading { padding-top: 25px; padding-bottom: 28px; }
  .reader-breadcrumb { margin-bottom: 35px; font-size: 11px; }
  .reader-heading h1 { font-size: 32px; line-height: 1.4; }
  .reader-description { font-size: 14px; }
  .reader-notice { padding: 16px; }
  .reader-layout { display: block; padding-bottom: 55px; }
  .reader-aside { position: static; max-height: none; overflow: visible; margin-bottom: 22px; padding: 0; }
  .reader-aside > .reader-back { display: none; }
  .reader-toc nav { gap: 3px; }
  .reader-toc a { padding: 10px; }
  .reader-content { font-size: 16px; line-height: 1.95; }
  .reader-intro { padding: 24px 20px; }
  .reader-content h2 { font-size: 23px; }
  .reader-section { padding: 30px 0; scroll-margin-top: 90px; }
  .reader-related { padding: 22px 18px; }
  .reader-pagination { gap: 16px; }
}
@media print {
  .site-header, .reader-aside, .reader-related, .reader-pagination, .reader-back, .reader-footer { display: none; }
  .reader-layout { display: block; }
  .reader-heading, .reader-layout { padding: 0; }
  .reader-intro, .reader-intro h2, .reader-intro p { color: #000; background: transparent; }
  .reader-section { break-inside: auto; }
}

/* Long-form reading rhythm: a narrower measure and roomier Chinese text. */
.reader-content {
  max-width: 780px;
  font-size: 17px;
  line-height: 1.95;
  letter-spacing: 0.005em;
}
.reader-content p {
  margin-top: 0;
  margin-bottom: 1.15em;
}
.reader-content h2 {
  margin-top: 0;
  margin-bottom: 0.9em;
  font-size: 26px;
  line-height: 1.55;
  text-wrap: balance;
}
.reader-section h3 {
  margin-top: 1.65em;
  margin-bottom: 0.55em;
  font-size: 19px;
  line-height: 1.6;
  text-wrap: balance;
}
.reader-section ul,
.reader-section ol {
  margin-top: 0.8em;
  margin-bottom: 1.15em;
}
.reader-section li {
  padding-left: 0.15em;
}
.reader-section li + li {
  margin-top: 0.8em;
}
.reader-section table {
  display: block;
  max-width: 100%;
  overflow-x: auto;
  margin: 1.2em 0;
}
.reader-section th,
.reader-section td {
  min-width: 8em;
  padding: 12px;
}
.reader-toc summary,
.reader-toc a,
.reader-back,
.reader-pagination a {
  min-height: 44px;
}
.reader-toc a,
.reader-back {
  display: flex;
  align-items: center;
}
.reader-toc a:focus-visible,
.reader-back:focus-visible,
.reader-pagination a:focus-visible,
.reader-related a:focus-visible {
  outline-offset: 3px;
}
.reader-related a {
  min-height: 44px;
  display: flex;
  align-items: center;
}
.reader-pagination strong {
  font-size: 15px;
  line-height: 1.7;
}
.reader-back {
  gap: 8px;
}
.reader-related a {
  justify-content: space-between;
  gap: 16px;
}
.reader-pagination a > span {
  display: inline-flex;
  align-items: center;
  gap: 7px;
}
.reader-pagination .link-arrow {
  display: inline-flex;
  font-size: 0;
}
.reader-footer a {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  min-height: 44px;
}

@media (max-width: 700px) {
  .reader-content {
    max-width: none;
    font-size: 16px;
    line-height: 1.95;
  }
  .reader-content h2 {
    font-size: 24px;
    line-height: 1.6;
  }
  .reader-section h3 {
    font-size: 18px;
  }
  .reader-content p {
    margin-bottom: 1.1em;
  }
  .reader-section table {
    font-size: 14px;
  }
  .reader-section th,
  .reader-section td {
    padding: 10px;
  }
  .reader-pagination {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 360px) {
  .reader-heading,
  .reader-layout,
  .reader-footer {
    padding-left: 18px;
    padding-right: 18px;
  }
  .reader-heading h1 {
    font-size: 30px;
  }
  .reader-intro {
    padding: 22px 18px;
  }
  .reader-related {
    padding-left: 18px;
    padding-right: 18px;
  }
}