.sci-article-page {
  padding-top: var(--sci-space-12);
}

.sci-article-header {
  max-width: 980px;
  margin-inline: auto;
  padding-bottom: var(--sci-space-10);
  border-bottom: 1px solid var(--sci-border-strong);
}

.sci-article-header h1 {
  margin: 0;
  font-family: var(--sci-font-serif);
  font-size: clamp(46px, 5.7vw, 72px);
  letter-spacing: -0.048em;
  line-height: 1.08;
}

.sci-article-deck {
  max-width: 820px;
  margin: var(--sci-space-6) 0 0;
  color: var(--sci-text-secondary);
  font-size: 20px;
  line-height: 1.65;
}

.sci-article-byline {
  display: flex;
  margin-top: var(--sci-space-6);
  flex-wrap: wrap;
  gap: var(--sci-space-4);
  color: var(--sci-text-muted);
  font-size: 12px;
}

.sci-article-byline span:first-child {
  color: var(--sci-text);
  font-weight: 700;
}

.sci-article-source {
  margin: var(--sci-space-3) 0 0;
  color: var(--sci-text-muted);
  font-size: 12px;
  line-height: 1.55;
}

.sci-article-source a {
  color: var(--sci-blue);
}

.sci-article-hero {
  overflow: hidden;
  margin: var(--sci-space-8) 0 0;
  aspect-ratio: 16 / 8;
  background: var(--sci-surface-subtle);
}

.sci-article-hero[hidden] {
  display: none;
}

.sci-article-hero img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.sci-article-layout {
  padding-top: var(--sci-space-10);
}

.sci-article-reading {
  max-width: 820px;
  margin-inline: auto;
}

.sci-article-ask {
  margin-top: var(--sci-space-12);
  border-top: 2px solid var(--sci-blue);
  background: var(--sci-blue-soft);
}

.sci-article-ask a {
  display: grid;
  padding: var(--sci-space-7);
  gap: var(--sci-space-3);
  color: var(--sci-text);
  text-decoration: none;
}

.sci-article-ask__eyebrow {
  color: var(--sci-blue);
  font-size: 12px;
  font-weight: 760;
}

.sci-article-ask strong {
  font-family: var(--sci-font-serif);
  font-size: 26px;
  line-height: 1.4;
}

.sci-article-ask__description {
  color: var(--sci-text-secondary);
  font-size: 15px;
  line-height: 1.65;
}

.sci-article-ask__action {
  margin-top: var(--sci-space-2);
  color: var(--sci-blue);
  font-size: 13px;
  font-weight: 760;
}

.sci-article-ask__action span {
  display: inline-block;
  margin-left: var(--sci-space-1);
  font-size: 18px;
  transition: transform 180ms ease;
}

.sci-article-ask a:hover .sci-article-ask__action span,
.sci-article-ask a:focus-visible .sci-article-ask__action span {
  transform: translateX(4px);
}

.sci-article-insights {
  display: grid;
  margin-bottom: var(--sci-space-8);
  gap: var(--sci-space-4);
}

.sci-article-insight {
  padding: var(--sci-space-6);
  border-top: 2px solid var(--sci-blue);
  background: var(--sci-surface-subtle);
}

.sci-article-insight h2 {
  margin: var(--sci-space-3) 0 0;
  font-family: var(--sci-font-serif);
  font-size: 25px;
}

.sci-article-insight div > p:not(.sci-section-label) {
  margin: var(--sci-space-3) 0 0;
  color: var(--sci-text-secondary);
  line-height: 1.65;
}

.sci-article-insight footer {
  display: flex;
  margin-top: var(--sci-space-5);
  padding-top: var(--sci-space-4);
  justify-content: space-between;
  gap: var(--sci-space-4);
  border-top: 1px solid var(--sci-border);
  color: var(--sci-text-muted);
  font-size: 12px;
}

.sci-article-insight footer a {
  color: var(--sci-blue);
}

.sci-article-reading .sci-article-content {
  max-width: 780px;
  margin-inline: auto;
  font-size: 19px;
  line-height: 1.9;
}

.sci-article-reading .sci-article-content > *:first-child {
  margin-top: 0;
}

.sci-article-related {
  margin-top: var(--sci-space-16);
  padding-top: var(--sci-space-8);
  border-top: 1px solid var(--sci-border-strong);
}

.sci-article-related .sci-section-heading {
  margin-bottom: var(--sci-space-2);
}

@media (max-width: 767px) {
  .sci-article-page {
    padding-top: var(--sci-space-10);
  }

  .sci-article-header h1 {
    font-size: clamp(36px, 10.5vw, 44px);
    line-height: 1.17;
  }

  .sci-article-deck {
    font-size: 18px;
  }

  .sci-article-reading .sci-article-content {
    font-size: 18px;
    line-height: 1.8;
  }

  .sci-article-insight {
    padding: var(--sci-space-5);
  }

  .sci-article-insight footer {
    align-items: flex-start;
    flex-direction: column;
  }

  .sci-article-ask a {
    padding: var(--sci-space-5);
  }

  .sci-article-ask strong {
    font-size: 23px;
  }

  .sci-article-related .sci-story-list {
    grid-template-columns: 1fr;
  }
}

/* ============================================================
   SCI.AI Article Body Typography — Wave 2 (2026-08-12)
   The custom single-post template renders article HTML inside
   .sci-article-content (NOT .entry-content), so the classic
   wp-custom-css article rules never reached these pages. This
   block restores the site's reading design and adds paper-
   interpretation extras scoped to body.sci-research-article.
   ============================================================ */

.sci-article-reading .sci-article-content {
  color: var(--sci-text);
  overflow-wrap: anywhere;
}

/* ── Paragraphs ────────────────────────────────────────────── */
.sci-article-reading .sci-article-content p {
  margin: 0 0 1.5em;
  color: var(--sci-text);
  line-height: 1.9;
  word-break: break-word;
  hyphens: none;
}

/* ── Section headings ──────────────────────────────────────── */
.sci-article-reading .sci-article-content h2 {
  margin: 2.2em 0 0.9em;
  padding-bottom: 0.4em;
  font-family: var(--sci-font-serif);
  font-size: 1.45em;
  font-weight: 700;
  line-height: 1.4;
  color: var(--sci-text);
  letter-spacing: 0.01em;
  border-bottom: 2px solid var(--sci-blue);
}

.sci-article-reading .sci-article-content h3 {
  margin: 1.8em 0 0.7em;
  font-family: var(--sci-font-serif);
  font-size: 1.2em;
  font-weight: 700;
  color: var(--sci-text);
}

/* ── Inline emphasis ───────────────────────────────────────── */
.sci-article-reading .sci-article-content strong {
  color: var(--sci-text);
  font-weight: 700;
}

.sci-article-reading .sci-article-content strong.data {
  padding: 0.08em 0.32em;
  border-radius: 4px;
  background: var(--sci-blue-soft);
  color: #0b3fb8;
  font-weight: 700;
  white-space: nowrap;
}

.sci-article-reading .sci-article-content em {
  color: var(--sci-text-secondary);
}

/* ── Quotes ────────────────────────────────────────────────── */
.sci-article-reading .sci-article-content blockquote {
  position: relative;
  margin: 1.8em 0;
  padding: 1.2em 1.4em 1.1em 1.6em;
  border-left: 4px solid var(--sci-blue);
  border-radius: 0 8px 8px 0;
  background: var(--sci-surface-subtle);
  color: var(--sci-text);
  font-family: var(--sci-font-serif);
  font-size: 1.06em;
  line-height: 1.8;
}

.sci-article-reading .sci-article-content blockquote::before {
  content: "“";
  position: absolute;
  top: 0.05em;
  left: 0.28em;
  color: var(--sci-blue);
  font-size: 2.4em;
  line-height: 1;
  opacity: 0.35;
}

.sci-article-reading .sci-article-content blockquote p {
  margin: 0 0 0.5em;
  color: inherit;
}

.sci-article-reading .sci-article-content blockquote p:last-child {
  margin-bottom: 0;
}

/* ── Lists ─────────────────────────────────────────────────── */
.sci-article-reading .sci-article-content ul,
.sci-article-reading .sci-article-content ol {
  margin: 1.2em 0 1.6em;
  padding: 0;
  list-style: none;
}

.sci-article-reading .sci-article-content ul li {
  position: relative;
  padding: 0.4em 0 0.4em 1.6em;
  line-height: 1.8;
}

.sci-article-reading .sci-article-content ul li::before {
  content: "";
  position: absolute;
  left: 0.25em;
  top: 0.92em;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--sci-blue);
}

.sci-article-reading .sci-article-content ol {
  counter-reset: sci-ol;
}

.sci-article-reading .sci-article-content ol li {
  position: relative;
  padding: 0.4em 0 0.4em 2.1em;
  counter-increment: sci-ol;
  line-height: 1.8;
}

.sci-article-reading .sci-article-content ol li::before {
  content: counter(sci-ol);
  position: absolute;
  left: 0;
  top: 0.38em;
  width: 1.5em;
  height: 1.5em;
  border-radius: 50%;
  background: var(--sci-blue);
  color: #fff;
  font-size: 0.78em;
  font-weight: 700;
  line-height: 1.5em;
  text-align: center;
}

/* ── Links & code ──────────────────────────────────────────── */
.sci-article-reading .sci-article-content a {
  color: var(--sci-blue);
  text-decoration: underline;
  text-decoration-color: rgba(20, 91, 255, 0.35);
  text-underline-offset: 3px;
}

.sci-article-reading .sci-article-content a:hover {
  color: var(--sci-blue-hover);
  text-decoration-color: currentColor;
}

.sci-article-reading .sci-article-content code,
.sci-article-reading .sci-article-content pre {
  overflow-wrap: anywhere;
  word-break: break-word;
}

/* ── Dividers ──────────────────────────────────────────────── */
.sci-article-reading .sci-article-content hr {
  height: 1px;
  margin: 2.4em 0;
  border: none;
  background: linear-gradient(to right, transparent, var(--sci-border-strong) 18%, var(--sci-border-strong) 82%, transparent);
}

/* ── Source & AI disclosure footers ────────────────────────── */
.sci-article-reading .sci-article-content p.source {
  margin: 2em 0 0.4em;
  padding: 0.9em 1.1em;
  border-left: 3px solid var(--sci-blue);
  border-radius: 0 8px 8px 0;
  background: var(--sci-surface-subtle);
  color: var(--sci-text-muted);
  font-size: 0.82em;
  line-height: 1.6;
  overflow-wrap: anywhere;
}

.sci-article-reading .sci-article-content p.source a {
  color: var(--sci-blue);
}

.sci-article-reading .sci-article-content p.ai-disclosure {
  margin-top: 0.4em;
  color: var(--sci-text-muted);
  font-size: 0.8em;
  font-style: italic;
}

/* ============================================================
   Paper interpretation articles — reading enhancements
   Scoped by body.sci-research-article (added server-side for
   categories 学术论文=1183 / Papers=1275).
   ============================================================ */

body.sci-research-article .sci-article-reading .sci-article-content {
  counter-reset: sci-section;
  font-variant-numeric: tabular-nums;
}

/* CJK-friendly body text */
body.sci-research-article .sci-article-reading .sci-article-content p {
  text-align: justify;
  letter-spacing: 0.012em;
}

/* Numbered section badges (the paper template has a fixed 5-part structure) */
body.sci-research-article .sci-article-reading .sci-article-content h2 {
  position: relative;
  margin-top: 2.4em;
  padding-left: 2.5em;
  padding-bottom: 0.4em;
  border-bottom: 1px solid var(--sci-border-strong);
  counter-increment: sci-section;
}

body.sci-research-article .sci-article-reading .sci-article-content h2::before {
  content: counter(sci-section, decimal-leading-zero);
  position: absolute;
  left: 0;
  top: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 1.65em;
  height: 1.65em;
  border-radius: 7px;
  background: var(--sci-blue);
  color: #fff;
  font-family: var(--sci-font-sans);
  font-size: 0.62em;
  font-weight: 760;
  line-height: 1;
}

/* Lead paragraph right after each section heading */
body.sci-research-article .sci-article-reading .sci-article-content p.lead-paragraph {
  margin: 1.1em 0 1.6em;
  padding: 0.9em 1.2em;
  border-left: 3px solid var(--sci-blue);
  border-radius: 0 8px 8px 0;
  background: var(--sci-blue-soft);
  color: var(--sci-text);
  font-size: 1.04em;
  font-weight: 500;
  line-height: 1.85;
}

/* Section paragraph spacing */
body.sci-research-article .sci-article-reading .sci-article-content > p {
  margin-bottom: 1.55em;
}

@media (max-width: 767px) {
  body.sci-research-article .sci-article-reading .sci-article-content h2 {
    margin-top: 2em;
    padding-left: 2.2em;
    font-size: 1.25em;
  }

  body.sci-research-article .sci-article-reading .sci-article-content p.lead-paragraph {
    font-size: 1em;
    padding: 0.8em 1em;
  }
}