.reading-hero {
  padding: 28px 0 clamp(32px, 6vw, 72px);
  border-bottom: 1px solid var(--line);
  background: linear-gradient(110deg, #f8fbff, #eaf3ff);
}
.reading-home {
  display: inline-block;
  margin-bottom: 20px;
  color: #3b6296;
  font-size: 14px;
  font-weight: 650;
  text-decoration: underline;
  text-underline-offset: 3px;
}
.reading-hero h1 { max-width: 900px; }
.reading-intro { max-width: 640px; margin-top: 16px; color: var(--text); font-size: clamp(16px, 2vw, 21px); }

.reading-layout {
  display: grid;
  grid-template-columns: minmax(180px, .35fr) minmax(0, 1fr);
  align-items: start;
  gap: clamp(26px, 6vw, 80px);
  padding-block: clamp(28px, 5vw, 60px);
}
.reading-contents {
  position: sticky;
  top: 20px;
  padding: 16px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: #f5f9ff;
}
.reading-contents ul { display: grid; gap: 3px; margin: 7px 0 0; padding: 0; list-style: none; }
.reading-contents a { display: block; padding-block: 6px; color: #365d8e; font-size: 14px; }
.reading-contents a:hover { text-decoration: underline; text-underline-offset: 3px; }

.reading-body { max-width: 800px; min-width: 0; }
.reading-chapter { padding-bottom: 23px; }
.reading-chapter + .reading-chapter { padding-top: 24px; border-top: 1px solid var(--line); }
.reading-chapter h2 { font-size: clamp(25px, 3vw, 34px); }
.reading-chapter :is(p, li, dd, blockquote) { color: var(--text); }
.reading-chapter :is(p, dl, ul, ol, blockquote) { margin: 11px 0 0; }
.reading-chapter :is(ol, ul) { padding-inline-start: 24px; }
.reading-chapter li + li { margin-top: 10px; }
.reading-chapter strong, .reading-chapter dt { color: var(--ink); }
.reading-defs div { padding: 10px 0; border-bottom: 1px solid var(--line); }
.reading-defs dt { font-weight: 750; }
.reading-defs dd { margin: 3px 0 0; }
.reading-chapter blockquote, .reading-note {
  padding: 12px 16px;
  border-left: 3px solid #5b92d4;
  border-radius: 0 9px 9px 0;
  background: #f0f6ff;
}
.reading-note { margin-top: 16px; }
.reading-note p { margin-top: 4px; }
.reading-note a { margin-top: 7px; }
.script-steps blockquote { margin-top: 6px; }
.reading-source { margin: 0 0 16px; }
.reading-next {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 14px;
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: #f5f9ff;
}
.reading-next h2 { font-size: 22px; }
.reading-links { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 14px; }
.reading-links article {
  display: grid;
  grid-template-rows: auto auto 1fr auto;
  justify-items: start;
  padding: clamp(15px, 3vw, 24px);
  border: 1px solid var(--line);
  border-radius: 14px;
  background: #fff;
}
.reading-links p { margin: 8px 0 12px; color: var(--text); }
.reading-links a, .reading-process-link a, .reading-body a.text-link { text-decoration: underline; text-underline-offset: 3px; }
.reading-process-link { margin-top: 14px; }
@media (max-width: 720px) {
  .reading-layout, .reading-links { grid-template-columns: minmax(0, 1fr); }
  .reading-contents { position: static; }
  .reading-contents a { padding-block: 8px; }
}

.reading-theme-technology {
  --reading-tint: #eaf3ff;
  --reading-line: #bfd5f3;
  --reading-ink: #28558a;
}
.reading-theme-guide {
  --reading-tint: #eaf7f1;
  --reading-line: #badfce;
  --reading-ink: #24664e;
}
.reading-links article,
.reading-page .reading-hero,
.reading-page .reading-contents {
  background: var(--reading-tint);
  border-color: var(--reading-line);
}
.reading-links .kicker,
.reading-page .reading-hero .eyebrow,
.reading-page .reading-contents a {
  color: var(--reading-ink);
}
.reading-links .button.outline { border-color: var(--reading-line); color: var(--reading-ink); text-decoration: none; }
.reading-links .button.outline:hover { border-color: var(--reading-ink); background: #fff; }
.reading-page .reading-chapter blockquote,
.reading-page .reading-note {
  border-left-color: var(--reading-ink);
  background: var(--reading-tint);
}
.reading-page .reading-body { line-height: 1.7; }