.content-main { max-width: 1240px; margin: 0 auto; padding: 0 var(--gutter) 80px; }
.content-header { display: grid; grid-template-columns: 1fr 2fr; gap: 32px; padding: 74px 0 50px; border-bottom: 1px solid var(--ink); }
.content-type { color: var(--blue); font-size: 10px; letter-spacing: .14em; text-transform: uppercase; }
.content-index { margin-top: 18px; color: var(--muted); }
.content-title { margin: 0; max-width: 850px; font-family: var(--font-display); font-size: clamp(var(--title-size), 5vw, 72px); line-height: var(--title-leading); letter-spacing: -.02em; text-transform: uppercase; white-space: nowrap; overflow: visible; }
.content-deck { max-width: 570px; margin: 28px 0 0; font-size: var(--body-size); line-height: var(--body-leading); color: #555; }
.content-meta { display: flex; flex-wrap: wrap; gap: 12px 28px; margin-top: 32px; color: var(--muted); }
.content-hero { margin-top: 30px; width: 100%; aspect-ratio: 2.05; object-fit: cover; object-position: center; display: block; background: #ddd; }
.content-layout { display: grid; grid-template-columns: minmax(0, 2fr) minmax(200px, 1fr); gap: 80px; padding-top: 64px; }
.content-body h1, .content-body h2, .content-body h3 { font-family: var(--font-display); font-weight: 600; letter-spacing: .01em; margin-left: 0; margin-right: 0; }
.content-body > :is(h1, h2, h3):first-child { margin-top: 0; }
.content-body p { font-size: var(--body-size); line-height: var(--body-leading); color: #4c4c4c; margin: 0 0 24px; max-width: 680px; overflow-wrap: anywhere; }
.content-body p.lead { color: var(--ink); font-size: 18px; line-height: 34px; }
.content-body img:not(.content-hero), .content-body figure img { display: block; width: 100%; max-width: 100%; aspect-ratio: 3 / 2; object-fit: cover; object-position: center; margin: 28px 0; background: #ddd; }
.content-body figure { margin: 28px 0; }
.content-body figure img { margin: 0; }
.content-body figcaption { padding-top: 9px; color: var(--muted); font-size: var(--caption-size); line-height: var(--caption-leading); letter-spacing: .06em; text-transform: uppercase; }
.content-quote { margin: 42px 0; padding: 24px 0 24px 22px; border-left: 4px solid var(--cyan); font-family: var(--font-display); font-size: 32px; line-height: .95; text-transform: uppercase; }
.content-aside { border-top: 1px solid var(--ink); padding-top: 14px; align-self: start; }
.aside-label { color: var(--blue); font-size: 10px; letter-spacing: .14em; text-transform: uppercase; }
.aside-list { list-style: none; padding: 0; margin: 18px 0 0; }
.aside-list li { padding: 12px 0; border-bottom: 1px solid var(--line); font-size: 12px; }
.aside-list li span { display: block; color: var(--muted); font-size: 10px; margin-top: 4px; }
.post-tags { display: flex !important; flex-wrap: wrap; gap: 6px; }
.post-tags a { display: inline-block !important; color: var(--ink) !important; border: 1px solid var(--ink); border-radius: 999px; padding: 5px 10px; font-size: 10px !important; line-height: 1.2; margin-top: 0 !important; transition: background .18s ease, color .18s ease; }
.post-tags a:hover { background: var(--cyan); }
.engagement { display: flex; gap: 10px; margin-top: 34px; padding-top: 18px; border-top: 1px solid var(--line); }
.engagement button { font-family: var(--font-body); }
.like-action, .share-action, .engagement > button { width: 88px; height: 44px; display: inline-flex; align-items: center; justify-content: center; gap: 8px; border: 1px solid var(--ink); border-radius: 999px; font-size: 13px; letter-spacing: .04em; transition: background .18s ease, transform .18s ease; }
.like-action:hover, .share-action:hover { background: var(--cyan); }
.like-action.is-active { background: transparent; color: inherit; }
.like-action:hover, .share-action:hover { transform: translateY(-2px); }
.action-glyph { font-size: 19px; line-height: 1; }
.like-action.is-bouncing .action-glyph { animation: like-pop .42s cubic-bezier(.2,.8,.2,1); }
.share-wrap { position: relative; }
.share-menu { position: absolute; z-index: 3; left: 0; bottom: calc(100% + 12px); width: 188px; padding: 6px 0; border: 1px solid var(--line); background: var(--paper); box-shadow: 0 12px 28px rgba(17,17,17,.12); }
.share-menu::after { content: ''; position: absolute; left: 28px; bottom: -6px; width: 10px; height: 10px; background: var(--paper); border-right: 1px solid var(--line); border-bottom: 1px solid var(--line); transform: rotate(45deg); }
.share-menu button { width: 100%; min-height: 38px; display: flex; align-items: center; gap: 10px; padding: 8px 14px; text-align: left; font-size: 12px; }
.share-menu button:hover { background: var(--cyan); }
.share-menu button span { width: 16px; text-align: center; font-size: 16px; }
@keyframes like-pop { 0% { transform: scale(1); } 45% { transform: scale(1.35) rotate(-8deg); } 100% { transform: scale(1); } }
.lab-stats { display: grid; grid-template-columns: repeat(3, 1fr); border-top: 1px solid var(--ink); border-bottom: 1px solid var(--ink); margin: 40px 0 44px; }
.lab-stat { padding: 18px 14px 18px 0; border-right: 1px solid var(--line); }
.lab-stat:last-child { border-right: 0; padding-left: 14px; }
.lab-stat strong { display: block; font-family: var(--font-display); font-size: 34px; line-height: .9; }
.lab-stat span { display: block; color: var(--muted); font-size: 10px; margin-top: 8px; }
.comparison { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; margin: 28px 0; }
.comparison figure { margin: 0; }
.comparison img { display: block; width: 100%; aspect-ratio: 3 / 2; object-fit: cover; object-position: center; background: #ddd; }
.comparison figcaption { padding-top: 9px; font-size: 10px; color: var(--muted); text-transform: uppercase; letter-spacing: .1em; }
.resource-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 14px; margin-top: 38px; }
.resource-item { min-height: 180px; border: 1px solid var(--ink); padding: 18px; display: flex; flex-direction: column; justify-content: space-between; }
.resource-item:hover { background: var(--cyan); }
.resource-item h3 { margin: 0; font-family: var(--font-display); font-size: 28px; line-height: .92; text-transform: uppercase; }
.resource-item p { margin: 14px 0 0; font-size: 11px; line-height: 1.5; color: #555; }
.resource-item a { margin-top: 22px; font-size: 10px; text-transform: uppercase; letter-spacing: .1em; }
.related { margin-top: 76px; border-top: 1px solid var(--ink); padding-top: 16px; }
.related h2 { font-size: 13px; font-family: var(--font-body); letter-spacing: .12em; color: var(--blue); }
.back-link { display: inline-block; margin-top: 32px; color: var(--ink); font-size: 11px; text-transform: uppercase; letter-spacing: .1em; border-bottom: 1px solid var(--ink); padding-bottom: 4px; }
@media (max-width: 800px) {
  .content-main { padding-bottom: 54px; }
  .content-header { display: block; padding: 48px 0 34px; }
  .content-title { margin-top: 18px; font-size: clamp(30px, 8vw, 52px); line-height: 1.12; letter-spacing: 0; overflow-wrap: anywhere; }
  .content-deck { font-size: 12px; margin-top: 22px; }
  .content-hero { aspect-ratio: 1.15; margin-top: 20px; }
  .content-layout { display: block; padding-top: 44px; }
  .content-aside { margin-top: 56px; }
  .lab-stats { margin: 32px 0; }
  .lab-stat strong { font-size: 26px; }
  .resource-grid { grid-template-columns: 1fr; }
  .content-quote { font-size: 26px; }
}

/* Final article polish: align top metadata and keep utility labels consistent. */
.content-context { padding-top: 0; }
.content-context-note { margin-top: 0; color: var(--muted-foreground); font-size: var(--caption-size); line-height: var(--caption-leading); }
.post-bookmark { margin-top: 0; }
.post-bookmark .aside-label { color: var(--foreground); font-size: 12px; line-height: 1.5; letter-spacing: 0; text-transform: none; }
.bookmark-list a { font-size: 12px; }
.post-tags a, .engagement button { border-color: var(--border); }
.post-tags a:hover, .post-tags a:focus-visible { background: var(--brand-cyan); color: #151515 !important; border-color: var(--brand-cyan); }
.engagement button { border-color: var(--border); }
.engagement button:hover { background: var(--brand-cyan); color: #151515; border-color: var(--brand-cyan); }
.like-action.is-active { background: var(--brand-cyan) !important; color: #151515; border-color: var(--brand-cyan); }
.action-glyph { display: inline-flex; align-items: center; justify-content: center; width: 18px; height: 18px; }
.action-glyph img { display: block; width: 18px; height: 18px; object-fit: contain; }
.theme-dark .action-glyph img, [data-theme="dark"] .action-glyph img { filter: invert(1); }
.like-action.is-active .action-glyph img { filter: brightness(0); }
.content-aside, .post-bookmark { border-top: 0; }
.post-bookmark { padding-top: 0; }
.post-bookmark .aside-label, .aside-heading { font-family: var(--font-en); font-size: 12px; font-weight: 700; line-height: 1.5; letter-spacing: .08em; text-transform: uppercase; }
.post-bookmark .aside-label, .aside-heading { display: block; color: var(--foreground); margin-top: 0; }
.aside-list > li:has(.aside-heading) { padding-top: var(--space-5); }
.post-tags a { font-size: 12px !important; padding: 5px 10px; }
.engagement button { background: transparent; appearance: none; font-size: 12px; }
.engagement button:hover { background: var(--brand-cyan); }

@media (max-width: 800px) {
  .content-context { justify-content: flex-start; }
}

/* Article reading layout: metadata stays quiet on the left, writing leads on the right. */
.content-header {
  grid-template-columns: minmax(180px, 1fr) minmax(0, 2.8fr);
  gap: var(--space-8);
  padding: var(--space-8) 0 var(--space-7);
  align-items: start;
}
.content-context { padding-top: var(--space-2); }
.content-type { color: var(--muted-foreground); font-family: var(--font-en); font-size: var(--caption-size); font-weight: 600; letter-spacing: .12em; text-transform: uppercase; }
.content-context-note { margin-top: var(--space-4); color: var(--muted-foreground); font-size: var(--caption-size); line-height: var(--caption-leading); }
.content-heading { min-width: 0; }
.content-byline { display: flex; align-items: center; gap: var(--space-4); margin-bottom: var(--space-4); }
.content-byline .content-index { margin-top: 0; }
.reading-time { color: var(--muted-foreground); font-size: var(--caption-size); line-height: var(--caption-leading); letter-spacing: .06em; }
.reading-time::before { content: '·'; margin-right: var(--space-4); color: var(--border); }
.content-title { max-width: none; font-size: clamp(42px, 5.4vw, 78px); line-height: 1.05; text-transform: none; }
.content-deck { max-width: 720px; margin-top: var(--space-5); }
.content-hero { margin-top: var(--space-7); border-radius: var(--radius); }
.content-layout { grid-template-columns: minmax(180px, 1fr) minmax(0, 2.8fr); gap: var(--space-8); padding-top: var(--space-8); align-items: start; }
.content-aside { position: sticky; top: calc(74px + var(--space-6)); margin: 0; }
.content-body > p:first-child { font-size: 19px; line-height: 1.75; color: var(--foreground); }
.post-bookmark { margin-top: var(--space-8); padding-top: var(--space-4); border-top: 1px solid var(--border); }
.bookmark-list { display: grid; gap: var(--space-3); margin-top: var(--space-4); }
.bookmark-list a { display: block; color: var(--muted-foreground); font-size: 12px; line-height: 1.5; text-decoration: none; transition: color .18s ease, padding-left .18s ease; }
.bookmark-list a:hover, .bookmark-list a.is-active { color: var(--foreground); padding-left: var(--space-2); }
.bookmark-list a.is-active { border-left: 1px solid var(--brand-cyan); }

@media (max-width: 800px) {
  .content-header { display: block; padding-top: var(--space-7); }
  .content-context { display: flex; align-items: baseline; justify-content: space-between; gap: var(--space-4); }
  .content-context-note { margin-top: 0; }
  .content-heading { margin-top: var(--space-7); }
  .content-title { font-size: clamp(34px, 10vw, 54px); line-height: 1.12; }
  .content-byline { margin-bottom: var(--space-3); }
  .content-hero { margin-top: var(--space-6); }
  .content-layout { display: flex; flex-direction: column; gap: var(--space-7); padding-top: var(--space-7); }
  .content-aside { position: static; width: 100%; }
  .post-bookmark { margin-top: var(--space-6); }
  .bookmark-list { display: flex; flex-wrap: wrap; gap: var(--space-2) var(--space-4); }
  .bookmark-list a { max-width: 100%; }
}

/* Content-page type scale and CJK rhythm. */
.content-header { gap: var(--space-8); border-bottom-color: var(--foreground); }
.content-title { font-family: var(--font-hero); font-weight: 600; letter-spacing: 0; }
.content-deck { color: var(--muted-foreground); }
.content-body h1, .content-body h2, .content-body h3 { font-family: var(--font-hero); letter-spacing: 0; }
.content-body p, .content-body li { hanging-punctuation: first allow-end last; }
.content-hero { background: var(--surface); }
.content-aside { border-top-color: var(--foreground); }
.aside-list li { border-bottom-color: var(--border); }
.content-quote { border-left-color: var(--secondary); }
.post-tags a, .engagement button { border-color: var(--foreground); transition: background-color .2s ease, color .2s ease, transform .2s ease; }
.post-tags a:hover, .engagement button:hover { background: var(--secondary); color: var(--secondary-foreground); }
.share-menu { background: var(--surface); border-color: var(--border); box-shadow: var(--shadow-sm); }
.share-menu::after { background: var(--surface); border-color: var(--border); }
@media (max-width: 800px) {
  .content-header { padding-top: var(--space-8); }
  .content-title { white-space: normal; overflow-wrap: anywhere; }
  .content-deck { line-height: 26px; }
}

/* Final overrides keep the requested hierarchy above the legacy content rules. */
.content-context { padding-top: 0; }
.content-context-note { margin-top: 0; color: var(--muted-foreground); font-size: var(--caption-size); line-height: var(--caption-leading); }
.post-bookmark { margin-top: 0; padding-top: var(--space-4); }
.post-bookmark .aside-label { color: var(--foreground); font-size: 12px; line-height: 1.5; letter-spacing: 0; text-transform: none; }
.bookmark-list a { font-size: 12px; }
.post-tags a, .engagement button { border-color: var(--border); }
.post-tags a:hover, .post-tags a:focus-visible { background: var(--brand-cyan); color: #151515 !important; border-color: var(--brand-cyan); }
.engagement button:hover { background: var(--brand-cyan); color: #151515; border-color: var(--brand-cyan); }
.like-action.is-active { background: var(--brand-cyan); color: #151515; border-color: var(--brand-cyan); }
.action-glyph { display: inline-flex; align-items: center; justify-content: center; width: 18px; height: 18px; }
.action-glyph img { display: block; width: 18px; height: 18px; object-fit: contain; }
.like-action.is-active .action-glyph img { filter: brightness(0); }
.aside-list > li:has(.aside-heading) { margin-top: 0; padding-top: 0; }
.aside-heading { margin-top: var(--space-7); }
.aside-heading { color: var(--foreground) !important; margin-bottom: var(--space-2); }
.aside-heading + .post-tags { margin-top: var(--space-2); }
.action-glyph, .action-glyph img, .engagement button { background: transparent !important; }
.back-link { border-bottom-color: var(--brand-cyan); }
.engagement button:hover, .engagement button:focus-visible { background: var(--brand-cyan) !important; color: #151515; border-color: var(--brand-cyan); }
.engagement button:hover .action-glyph img, .engagement button:focus-visible .action-glyph img { filter: brightness(0); }
.aside-list > li:has(.aside-heading) { margin-top: var(--space-6); padding-top: var(--space-5); border-top: 1px solid var(--border); border-bottom: 0; }
.aside-heading { margin-bottom: var(--space-3); }
.back-link { font-weight: 700; }
.article-image-dialog {
  position: fixed;
  inset: 0;
  width: 100%;
  height: 100%;
  max-width: none;
  max-height: none;
  box-sizing: border-box;
  margin: 0;
  padding: 64px 24px 24px;
  border: 0;
  background: rgb(0 0 0 / 88%);
  overflow: auto;
}
.article-image-dialog[open] { display: grid; place-items: center; }
.article-image-dialog::backdrop { background: transparent; }
.article-image-dialog > img {
  display: block;
  max-width: 100%;
  max-height: calc(100dvh - 88px);
  width: auto;
  height: auto;
  object-fit: contain;
}
.article-image-dialog .article-image-close {
  position: fixed;
  top: max(12px, env(safe-area-inset-top));
  right: max(12px, env(safe-area-inset-right));
  width: 44px;
  height: 44px;
  padding: 0;
  border: 0;
  border-radius: 0;
  background: transparent;
  color: #fff;
  font: 400 28px/1 system-ui, sans-serif;
  cursor: pointer;
}
.article-image-close:focus-visible { outline: 2px solid #fff; outline-offset: 3px; }
.article-image-close:focus:not(:focus-visible) { outline:none; box-shadow:none; }

/* Auto-focused close buttons must not show a keyboard ring after touch. */
html[data-article-input="pointer"] :is(.article-image-close,.research-plate-dialog-header button):focus{outline:none!important;box-shadow:none!important}