/* Article reading surface. Keep these rules separate from landing pages and tools. */
.article-page { background: #f5f7f6; }
.article-page .article-layout {
  grid-template-columns: minmax(0, 820px) minmax(220px, 260px);
  justify-content: center;
  gap: 40px;
  padding-block: 36px 64px;
}
.article-page .article {
  order: 0;
  gap: 28px;
  padding: 40px 48px 48px;
  background: #fff;
  border: 1px solid #e0e7e3;
  border-radius: 12px;
}
.article-header { display: flex; flex-direction: column; gap: 20px; }
.article-page .breadcrumb { font-size: 12px; line-height: 1.8; }
.article-page .article h1 {
  font-family: var(--sans);
  font-size: clamp(26px, 2.5vw, 34px);
  line-height: 1.6;
  letter-spacing: .015em;
}
.article-page .meta { padding-bottom: 24px; border-bottom: 1px solid #e0e7e3; line-height: 1.8; }
.article-page .pr-notice { margin: 0; letter-spacing: 0; }
.article-page .evidence { background: #f7f9f8; border: 0; padding: 14px 16px; gap: 10px; }
.article-page .evidence > .label { width: 100%; font-size: 12px; }
.article-page .chip { padding: 5px 9px; line-height: 1.5; white-space: normal; }
.article-page .conclusion {
  background: #f0f7f3;
  border: 1px solid #d6e6dc;
  border-left: 4px solid var(--green);
  border-radius: 8px;
  padding: 24px 28px;
  gap: 12px;
}
.article-page .conclusion > .label { color: var(--green-dark); font-size: 14px; }
.article-page .conclusion .num { font-family: var(--sans); font-size: clamp(26px, 2.8vw, 34px); line-height: 1.5; color: var(--green-dark); }
.article-page .conclusion .cond { font-size: 14px; }
.article-page .conclusion p { font-size: 15px; line-height: 1.9; }
.article-page .conclusion .src { line-height: 1.8; }
.article-page .body { font-size: 17px; line-height: 2.05; color: #293b35; }
.article-page .body p { font-size: inherit; margin: 0 0 1.6em; text-wrap: wrap; }
.article-page .body h2 {
  font-family: var(--sans);
  font-size: 24px;
  line-height: 1.65;
  margin: 64px 0 24px;
  padding: 0 0 16px;
  border-bottom: 2px solid #d6e6dc;
  align-items: flex-start;
  gap: 14px;
  color: var(--ink);
  scroll-margin-top: 28px;
}
.article-page .body h2::before {
  flex-shrink: 0;
  font-family: var(--sans);
  font-size: 13px;
  line-height: 2;
  letter-spacing: .04em;
  margin-top: 6px;
  padding: 0 6px;
  border-radius: 4px;
  background: var(--green-soft);
}
.article-page .body h3 {
  font-family: var(--sans);
  font-size: 19px;
  line-height: 1.8;
  margin: 36px 0 16px;
  scroll-margin-top: 28px;
  color: var(--ink);
}
.article-page .body > :first-child { margin-top: 0; }
.article-page .body ul, .article-page .body ol { margin: 0 0 28px; padding-left: 1.5em; }
.article-page .body li { padding-left: .2em; margin: 12px 0; }
.article-page .body li::marker { color: var(--green); font-weight: 700; }
.article-page .body li > ul, .article-page .body li > ol { margin-bottom: 0; }
.article-page .body .cite { white-space: normal; font-size: 12px; line-height: 1.8; }
.article-page .body .src-line { font-size: 13px; }
.article-page .body table { margin: 24px 0; font-size: 14px; line-height: 1.85; border: 1px solid var(--line); border-radius: 6px; }
.article-page .body th, .article-page .body td { white-space: normal; min-width: 7em; padding: 14px 16px; overflow-wrap: anywhere; }
.article-page .body th:first-child, .article-page .body td:first-child { min-width: 12em; }
.article-page .body th:nth-child(3), .article-page .body td:nth-child(3) { min-width: 16em; }
.article-page .body th { background: #edf3ef; color: #294a3b; font-size: 13px; }
.article-page .body tr:nth-child(even) td { background: #f8faf9; }
.article-page .body blockquote { padding: 20px 24px; margin: 28px 0; background: #f7f9f8; border-left: 3px solid #b8cdc0; }
.article-page .body blockquote p { margin: 0; }
.article-page .body h3.faq-q { margin: 24px 0 0; padding: 20px 22px 10px; background: #f5f8f6; border-radius: 8px 8px 0 0; font-size: 17px; }
.article-page .body h3.faq-q + p { padding: 10px 22px 22px; margin-bottom: 24px; background: #f5f8f6; border-radius: 0 0 8px 8px; font-size: 16px; }
.article-page .cta-band { margin: 36px 0; grid-template-columns: 1fr; gap: 18px; padding: 24px; }
.article-page .cta-band .btn { white-space: normal; justify-self: start; }
.article-page .tools-box { padding: 24px; background: #f7f9f8; }
.article-page .article-sidebar { gap: 24px; min-width: 0; }
.article-page .toc-rail { display: block; padding: 0; border: 0; background: transparent; max-height: 65dvh; overflow-y: auto; scrollbar-width: thin; }
.article-page .toc-title { padding: 0 0 14px; margin: 0 0 12px; border-bottom: 1px solid var(--line); font-size: 14px; color: var(--ink); }
.article-page .toc-rail ul { gap: 2px; }
.article-page .toc-rail ul ul { display: none; }
.article-page .toc-rail a { padding: 9px 10px; font-size: 13px; line-height: 1.8; }
.article-page .toc-rail a:hover { background: #eaf1ed; border-radius: 0 4px 4px 0; }
.article-page .article-sidebar .card { padding: 18px 16px; box-shadow: none; }
.article-page .mobile-toc { display: none; padding: 16px 20px; background: #f7f9f8; }
.article-page .mobile-toc summary { min-height: 36px; line-height: 1.9; padding-block: 4px; font-size: 15px; }
.article-page .mobile-toc ul { margin-block: 12px; font-size: 14px; }
.article-page .mobile-toc li { padding-left: 4px; }
.article-page .mobile-toc a { line-height: 1.8; }
@media (max-width: 1100px) {
  .article-page .article-layout { grid-template-columns: minmax(0, 820px); padding-top: 24px; gap: 24px; }
  .article-page .article-sidebar { position: static; }
  .article-page .toc-rail { display: none; }
  .article-page .mobile-toc { display: block; }
}
@media (max-width: 640px) {
  .article-page { background: #fff; }
  .article-page .article-layout { padding-block: 24px 32px; }
  .article-page .article { padding: 0 4px; border: 0; border-radius: 0; gap: 24px; }
  .article-page .article h1 { font-size: 25px; line-height: 1.65; }
  .article-page .breadcrumb span { display: none; }
  .article-page .body { font-size: 16px; line-height: 2; }
  .article-page .body h2 { font-size: 21px; margin-top: 48px; gap: 10px; }
  .article-page .body h3 { font-size: 18px; }
  .article-page .body h2::before { font-size: 12px; margin-top: 5px; }
  .article-page .conclusion { padding: 20px; }
  .article-page .conclusion .num { font-size: 27px; }
  .article-page .body th, .article-page .body td { padding: 12px; }
  .article-page .body h3.faq-q, .article-page .body h3.faq-q + p { padding-inline: 16px; }
  .article-page .cta-band .btn { width: 100%; }
}