/* humarb Research 03 — self-contained editorial webpage */
:root {
  --purple: #7657DD;
  --purple-light: #967EFF;
  --ink: #111113;
  --paper: #FAFAFC;
  --surface: #FFFFFF;
  --text: #202024;
  --muted: #696971;
  --faint: #8B8B94;
  --line: #DEDEE5;
  --soft: #EFEDF7;
  --serif: Georgia, 'Times New Roman', 'Noto Serif CJK SC', serif;
  --sans: Inter, -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Noto Sans CJK SC', Arial, sans-serif;
  --mono: 'SFMono-Regular', Consolas, 'Liberation Mono', monospace;
}
html[data-theme="dark"] {
  --paper: #111113;
  --surface: #17171A;
  --text: #E9E9ED;
  --muted: #AAAAB3;
  --faint: #888892;
  --line: #34343B;
  --soft: #24212F;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 96px; }
body { margin: 0; background: var(--paper); color: var(--text); font-family: var(--sans); font-size: 15px; line-height: 1.65; -webkit-font-smoothing: antialiased; }
a { color: inherit; text-decoration: none; }
button, a { -webkit-tap-highlight-color: transparent; }
button { font: inherit; }
img { display: block; max-width: 100%; }
::selection { background: var(--purple); color: white; }
.skip-link { position: fixed; z-index: 100; top: 8px; left: 8px; padding: 8px 14px; background: var(--purple); color: white; transform: translateY(-150%); }
.skip-link:focus { transform: translateY(0); }
.reading-progress { position: fixed; z-index: 80; inset: 0 0 auto; height: 2px; pointer-events: none; }
.reading-progress span { display: block; width: 100%; height: 100%; background: var(--purple); transform: scaleX(0); transform-origin: left; }
.site-header { height: 82px; padding: 0 32px; display: flex; align-items: center; gap: 28px; border-bottom: 1px solid var(--line); background: color-mix(in srgb, var(--paper) 94%, transparent); position: relative; z-index: 20; }
.brand { display: inline-flex; align-items: center; }
.logo { width: 128px; height: 42px; }
.logo-dark { display: none; }
html[data-theme="dark"] .logo-light { display: none; }
html[data-theme="dark"] .logo-dark { display: block; }
.series { color: var(--muted); font: 10px/1.2 var(--mono); letter-spacing: .12em; }
.header-actions { margin-left: auto; display: flex; align-items: center; gap: 24px; }
.header-link, .text-button { color: var(--muted); font-size: 12px; }
.header-link:hover, .text-button:hover { color: var(--purple-light); }
.text-button { border: 0; padding: 6px 0; background: none; cursor: pointer; }
.mobile-toc-button { display: none; }
.hero { max-width: 1440px; margin: 0 auto; padding: 82px 32px 72px; border-bottom: 1px solid var(--line); }
.kicker, .section-label { margin: 0 0 24px; color: var(--purple-light); font: 10px/1.5 var(--mono); letter-spacing: .14em; }
h1 { max-width: 1130px; margin: 0; color: var(--text); font: 400 clamp(48px, 5.45vw, 82px)/1.08 var(--serif); letter-spacing: -.045em; }
.subtitle { max-width: 750px; margin: 20px 0 32px; color: var(--muted); font: 400 clamp(24px, 2.25vw, 34px)/1.3 var(--serif); }
.author-line { display: flex; flex-wrap: wrap; gap: 12px 28px; align-items: center; font-size: 12px; }
.author-line strong { color: var(--text); }
.author-line span { color: var(--muted); }
.author-line a { color: var(--muted); border-bottom: 1px dotted var(--faint); font-family: var(--mono); font-size: 10px; }
.author-line a:hover { color: var(--purple-light); }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 32px; }
.button { display: inline-flex; min-height: 47px; align-items: center; justify-content: center; padding: 0 20px; border: 1px solid var(--text); font-size: 12px; transition: background .18s, color .18s, border-color .18s; }
.button.primary { border-color: var(--purple); background: var(--purple); color: white; }
.button.primary:hover { border-color: var(--purple-light); background: var(--purple-light); }
.button.secondary:hover { border-color: var(--purple); color: var(--purple-light); }
.doi-status { margin: 28px 0 0; color: var(--faint); font: 10px/1.6 var(--mono); }
.doi-status span { margin-right: 14px; color: var(--purple-light); }
.paper-layout { max-width: 1440px; margin: 0 auto; padding: 0 32px; display: grid; grid-template-columns: 240px minmax(0, 1fr); gap: 70px; }
.sidebar { align-self: start; position: sticky; top: 0; max-height: 100vh; padding: 64px 0 32px; overflow: auto; }
.sidebar-title { margin: 0 0 14px; color: var(--muted); font: 9px/1.5 var(--mono); letter-spacing: .14em; }
.toc { border-top: 1px solid var(--text); }
.toc a { display: block; padding: 10px 2px; border-bottom: 1px solid var(--line); color: var(--muted); font-size: 11px; transition: color .15s, padding-left .15s; }
.toc a:hover, .toc a.active { color: var(--purple-light); padding-left: 5px; }
.evidence-note { margin-top: 38px; padding-top: 16px; border-top: 1px solid var(--line); }
.evidence-note span { color: var(--faint); font: 9px/1.5 var(--mono); letter-spacing: .12em; }
.evidence-note p { margin: 8px 0 0; color: var(--muted); font-size: 11px; line-height: 1.65; }
article { min-width: 0; }
.metrics { display: grid; grid-template-columns: repeat(4, 1fr); padding: 38px 0 30px; border-bottom: 1px solid var(--line); }
.metrics div { padding: 0 24px; border-left: 1px solid var(--line); }
.metrics div:first-child { padding-left: 0; border-left: 0; }
.metrics strong { display: block; color: var(--purple-light); font: 400 37px/1.1 var(--serif); }
.metrics span { display: block; margin-top: 5px; color: var(--muted); font-size: 10px; }
.paper-section { padding: 58px 0 62px; border-bottom: 1px solid var(--line); }
.paper-section:last-child { border-bottom: 0; }
.section-label { margin-bottom: 18px; font-size: 9px; }
h2 { max-width: 850px; margin: 0 0 26px; color: var(--text); font: 400 clamp(31px, 3.15vw, 46px)/1.14 var(--serif); letter-spacing: -.025em; }
h3 { margin: 0 0 8px; color: var(--text); font-size: 14px; line-height: 1.4; }
p { margin: 0 0 17px; }
.paper-section > p:not(.section-label):not(.note) { max-width: 850px; font-family: var(--serif); font-size: 17px; line-height: 1.78; }
.chinese-abstract { margin-top: 32px; padding: 26px 28px; border-left: 2px solid var(--purple); background: var(--soft); }
.chinese-abstract h3 { margin-bottom: 14px; font-family: var(--serif); font-size: 20px; }
.chinese-abstract p { font-size: 14px; line-height: 1.9; }
.inline-link { display: inline-block; margin-top: 4px; color: var(--purple-light); border-bottom: 1px solid currentColor; font-size: 12px; }
.finding-list { border-top: 1px solid var(--text); }
.finding-list > div { display: grid; grid-template-columns: 45px 210px minmax(0, 1fr); gap: 22px; padding: 24px 0; border-bottom: 1px solid var(--line); align-items: start; }
.finding-list > div > span { color: var(--purple-light); font: 11px/1.6 var(--mono); }
.finding-list h3 { margin: 0; font-family: var(--serif); font-size: 19px; font-weight: 400; }
.finding-list p { margin: 0; color: var(--muted); font-size: 13px; line-height: 1.75; }
blockquote { margin: 30px 0 0; padding: 20px 24px; border-left: 2px solid var(--purple); background: var(--soft); color: var(--muted); font: italic 17px/1.65 var(--serif); }
.table-wrap { margin: 30px 0 20px; overflow-x: auto; }
table { width: 100%; border-collapse: collapse; text-align: left; font-size: 12px; }
th { padding: 11px 14px; border-top: 1.5px solid var(--text); border-bottom: 1px solid var(--text); color: var(--text); font-size: 10px; font-weight: 600; letter-spacing: .04em; }
td { padding: 13px 14px; border-bottom: 1px solid var(--line); vertical-align: top; }
td:first-child { color: var(--text); font-weight: 600; }
td:nth-child(n+2) { color: var(--muted); }
.note { margin: 18px 0 0; color: var(--faint); font-size: 11px; line-height: 1.75; }
.figures-grid { display: grid; gap: 38px; }
figure { margin: 0; }
.figure-button { display: block; width: 100%; padding: 14px; border: 1px solid var(--line); background: #FFFFFF; cursor: zoom-in; transition: border-color .15s; }
.figure-button:hover { border-color: var(--purple); }
.figure-button img { width: 100%; }
figcaption { display: flex; gap: 14px; margin-top: 10px; color: var(--muted); font-size: 11px; }
figcaption span { flex: 0 0 auto; color: var(--purple-light); font: 9px/1.8 var(--mono); letter-spacing: .08em; }
.math { display: inline-block; padding: 1px 6px; color: var(--purple-light); font-family: var(--serif); white-space: nowrap; }
.dictionary-list { margin: 30px 0; padding: 0; list-style: none; border-top: 1px solid var(--text); }
.dictionary-list li { display: grid; grid-template-columns: 55px minmax(0, 1fr); gap: 18px; padding: 19px 0; border-bottom: 1px solid var(--line); }
.dictionary-list li > span { color: var(--purple-light); font: italic 28px/1.2 var(--serif); text-align: center; }
.dictionary-list strong { font-family: var(--serif); font-size: 18px; font-weight: 400; }
.dictionary-list p { margin: 4px 0 0; color: var(--muted); font-size: 12px; }
.two-column { display: grid; grid-template-columns: 1fr 1fr; gap: 50px; margin-top: 30px; }
.two-column h3 { padding-bottom: 10px; border-bottom: 1px solid var(--text); font-family: var(--serif); font-size: 20px; font-weight: 400; }
ul { margin: 16px 0 0; padding-left: 18px; color: var(--muted); font-size: 13px; }
li::marker { color: var(--purple-light); }
.companion-list { margin-top: 28px; border-top: 1px solid var(--text); }
.companion-list a { display: grid; grid-template-columns: 110px minmax(0, 1fr); gap: 8px 20px; padding: 22px 0; border-bottom: 1px solid var(--line); }
.companion-list a > span { grid-row: 1 / 3; color: var(--purple-light); font: 9px/1.6 var(--mono); letter-spacing: .1em; }
.companion-list strong { font: 400 20px/1.35 var(--serif); }
.companion-list code { color: var(--muted); font: 10px/1.5 var(--mono); }
.companion-list a:hover strong { color: var(--purple-light); }
.download-list { display: grid; grid-template-columns: 1fr 1fr; border-top: 1px solid var(--text); }
.download-list a { display: grid; grid-template-columns: 52px minmax(0, 1fr); gap: 2px 16px; padding: 20px 14px 20px 0; border-bottom: 1px solid var(--line); }
.download-list a:nth-child(odd) { border-right: 1px solid var(--line); }
.download-list a:nth-child(even) { padding-left: 20px; }
.download-list a > span { grid-row: 1 / 3; color: var(--purple-light); font: 10px/1.7 var(--mono); }
.download-list strong { font: 400 19px/1.35 var(--serif); }
.download-list small { color: var(--muted); font-size: 10px; }
.download-list a:hover strong { color: var(--purple-light); }
.citation-box { margin-top: 34px; border: 1px solid var(--line); background: var(--surface); }
.citation-heading { display: flex; align-items: center; justify-content: space-between; padding: 12px 16px; border-bottom: 1px solid var(--line); }
.citation-heading span { color: var(--muted); font: 9px/1.5 var(--mono); letter-spacing: .1em; }
.citation-heading button { border: 0; background: none; color: var(--purple-light); cursor: pointer; font-size: 11px; }
pre { margin: 0; padding: 20px; overflow-x: auto; color: var(--muted); font: 10px/1.75 var(--mono); white-space: pre-wrap; overflow-wrap: anywhere; }
.copy-status { min-height: 18px; margin: 0; padding: 0 16px 10px; color: var(--purple-light); font-size: 10px; }
footer { max-width: 1440px; margin: 0 auto; padding: 34px 32px 42px; display: grid; grid-template-columns: 1fr 2fr auto; gap: 40px; border-top: 1px solid var(--line); color: var(--faint); font-size: 10px; }
footer strong { color: var(--text); font-size: 12px; }
footer p { margin: 4px 0 0; }
footer a { color: var(--muted); }
footer a:hover { color: var(--purple-light); }
dialog { color: var(--text); background: var(--paper); border: 1px solid var(--line); padding: 0; max-width: calc(100vw - 40px); max-height: calc(100vh - 40px); }
dialog::backdrop { background: rgba(10, 10, 14, .78); backdrop-filter: blur(4px); }
.dialog-toolbar { display: flex; align-items: center; justify-content: space-between; padding: 12px 16px; border-bottom: 1px solid var(--line); }
.dialog-toolbar span { color: var(--muted); font: 9px/1.5 var(--mono); letter-spacing: .12em; }
.dialog-toolbar button { border: 0; background: none; color: var(--muted); cursor: pointer; font-size: 12px; }
.dialog-toolbar button:hover { color: var(--purple-light); }
.figure-dialog { width: 1200px; }
.figure-dialog img { width: 100%; max-height: calc(100vh - 160px); object-fit: contain; background: white; }
.figure-dialog > p { margin: 0; padding: 12px 16px; color: var(--muted); font-size: 11px; }
.toc-dialog { width: 420px; }
.toc-dialog nav { padding: 8px 20px 20px; }
.toc-dialog a { display: block; padding: 12px 0; border-bottom: 1px solid var(--line); color: var(--muted); font-size: 13px; }
:focus-visible { outline: 2px solid var(--purple-light); outline-offset: 4px; }
@media (max-width: 1100px) {
  .paper-layout { grid-template-columns: 190px minmax(0, 1fr); gap: 42px; }
  .finding-list > div { grid-template-columns: 38px 170px minmax(0, 1fr); gap: 16px; }
  .hero { padding-top: 64px; }
}
@media (max-width: 900px) {
  .site-header { height: 70px; padding: 0 20px; }
  .series { display: none; }
  .mobile-toc-button { display: block; }
  .sidebar { display: none; }
  .paper-layout { display: block; padding: 0 20px; }
  .hero { padding: 58px 20px 54px; }
  h1 { font-size: clamp(45px, 8vw, 68px); }
  .paper-section > p:not(.section-label):not(.note) { max-width: none; }
  .finding-list > div { grid-template-columns: 38px minmax(0, 1fr); }
  .finding-list p { grid-column: 2; }
  footer { padding: 30px 20px; grid-template-columns: 1fr auto; }
  footer > p { grid-column: 1 / -1; grid-row: 2; }
}
@media (max-width: 640px) {
  .site-header { padding: 0 20px; gap: 12px; }
  .logo { width: 112px; height: auto; }
  .header-actions { gap: 18px; }
  .header-link { display: none; }
  .hero { padding: 48px 20px 44px; }
  .kicker { margin-bottom: 20px; font-size: 9px; }
  h1 { font-size: clamp(43px, 12.5vw, 62px); line-height: 1.02; }
  .subtitle { margin-top: 20px; font-size: 23px; }
  .author-line { display: block; font-size: 11px; }
  .author-line span { display: block; }
  .author-line a { display: inline-block; margin-top: 10px; }
  .hero-actions { gap: 10px; }
  .button { padding: 0 14px; font-size: 11px; }
  .doi-status { font-size: 9px; }
  .metrics { grid-template-columns: 1fr 1fr; row-gap: 24px; padding-top: 28px; }
  .metrics div { padding: 0 16px; }
  .metrics div:nth-child(3) { padding-left: 0; border-left: 0; }
  .metrics strong { font-size: 32px; }
  .paper-section { padding: 44px 0; }
  h2 { font-size: 33px; }
  .paper-section > p:not(.section-label):not(.note) { font-size: 16px; }
  .chinese-abstract { padding: 22px 20px; }
  .finding-list > div { gap: 10px 14px; }
  th, td { padding: 10px; }
  table { min-width: 590px; }
  .figure-button { padding: 6px; }
  figcaption { display: block; }
  figcaption span { display: block; margin-bottom: 3px; }
  .two-column { grid-template-columns: 1fr; gap: 30px; }
  .companion-list a { grid-template-columns: 1fr; }
  .companion-list a > span { grid-row: auto; }
  .download-list { grid-template-columns: 1fr; }
  .download-list a:nth-child(odd) { border-right: 0; }
  .download-list a:nth-child(even) { padding-left: 0; }
  footer { gap: 20px; }
  dialog { max-width: calc(100vw - 20px); max-height: calc(100vh - 20px); }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition: none !important; }
}