:root {
  color-scheme: light;
  --ivory: #f3eee5;
  --cream: #eae2d6;
  --ink: #231d19;
  --espresso: #302721;
  --walnut: #33251d;
  --walnut-light: #443126;
  --oxblood: #71382e;
  --rust: #864638;
  --olive: #4a4a32;
  --brass: #a98450;
  --taupe: #b9aa98;
  --limestone: #d1c4b3;
  --muted: #6e6053;
  --line: #cec2b1;
  --serif: "Iowan Old Style", "Palatino Linotype", "Book Antiqua", Georgia, serif;
  --sans: "Helvetica Neue", Helvetica, Arial, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  --space-section: clamp(5rem, 8vw, 9rem);
  font-family: var(--sans);
  font-synthesis: none;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: var(--header-offset,112px); }
body { margin: 0; background: var(--ivory); color: var(--ink); font-size: 1rem; line-height: 1.7; -webkit-font-smoothing: antialiased; }
h1,h2,h3,p,figure { margin: 0; }
h1,h2,h3 { font-weight: 400; overflow-wrap: anywhere; }
h1,h2 { font-family: var(--serif); }
h1 { font-size: clamp(3.25rem, 5.1vw, 5.4rem); line-height: 1.06; letter-spacing: -.055em; }
h2 { font-size: clamp(2.5rem, 4vw, 4.2rem); line-height: 1.12; letter-spacing: -.045em; text-wrap: balance; }
h3 { font-size: 1.5rem; line-height: 1.3; letter-spacing: -.02em; }
em { font-weight: inherit; }
a { color: inherit; text-decoration: none; }
button { font: inherit; }
a,button,summary { -webkit-tap-highlight-color: transparent; touch-action: manipulation; }
button { cursor: pointer; }
button[hidden],[hidden] { display: none !important; }
a:focus-visible,button:focus-visible,summary:focus-visible { outline: 2px solid var(--oxblood); outline-offset: 6px; }
::selection { background: var(--oxblood); color: var(--ivory); }
.wrap { width: min(calc(100% - 128px), 1376px); margin-inline: auto; }
.section { padding-block: var(--space-section); }
.eyebrow,.category,.format,.index,.series,.entry-meta,.issue,.research-count,.field-coordinate,.diagram-label { font-variant-numeric: tabular-nums; }
.eyebrow { color: var(--oxblood); font-size: .75rem; letter-spacing: .14em; text-transform: uppercase; line-height: 1.6; }
.index { color: var(--oxblood); font-size: .75rem; line-height: 1.6; }
.visually-hidden { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0; }
.skip { position: fixed; top: -100px; left: 20px; z-index: 100; padding: 12px 20px; background: var(--ink); color: var(--ivory); }
.skip:focus { top: 16px; }
#nav-sentinel { height: 1px; position: absolute; top: 8px; width: 1px; pointer-events: none; }
.site-header { position: sticky; top: 0; z-index: 20; background: var(--ivory); transition: background .4s, box-shadow .4s; }
.site-header.scrolled { background: rgba(243,238,229,.96); box-shadow: 0 1px 0 rgba(169,132,80,.25); }
@supports ((backdrop-filter: blur(16px)) or (-webkit-backdrop-filter: blur(16px))) { .site-header.scrolled { background: rgba(243,238,229,.88); -webkit-backdrop-filter: blur(16px); backdrop-filter: blur(16px); } }
.nav { display: flex; align-items: center; gap: 48px; min-height: 92px; border-bottom: 1px solid var(--line); }
.brand { min-width: 0; flex-shrink: 0; font-family: var(--sans); font-size: .9375rem; line-height: 1.5; font-weight: 500; letter-spacing: .1em; min-height: 44px; display: inline-flex; align-items: center; }
.brand-tail { color: var(--muted); }
.nav-main { display: flex; flex-wrap: wrap; align-items: center; gap: 34px; margin-left: auto; }
.nav-main a,.language-switch a { position: relative; display: inline-flex; align-items: center; justify-content: center; min-height: 44px; font-size: .875rem; }
.nav-main a::after { content: ''; position: absolute; bottom: 6px; left: 0; right: 0; height: 1px; background: var(--brass); transform: scaleX(0); transform-origin: left; transition: transform .3s; }
.nav-main a:hover::after,.nav-main a:focus-visible::after { transform: scaleX(1); }
.language-switch { display: flex; align-items: center; gap: 4px; font-size: .875rem; }
.language-switch a { min-width: 40px; color: var(--muted); }
.language-switch a[aria-current] { color: var(--ink); text-decoration: underline; text-decoration-color: var(--brass); text-underline-offset: 6px; }
.language-switch > span { color: var(--taupe); }
.hero { display: grid; grid-template-areas: "heading visual" "copy visual" "bottom bottom"; grid-template-columns: minmax(0,1.08fr) minmax(0,1.12fr); align-items: center; column-gap: 0; padding-top: clamp(50px, 6vw, 104px); position: relative; }
.hero-heading { grid-area: heading; align-self: end; min-width: 0; }
.hero-copy { grid-area: copy; align-self: start; position: relative; z-index: 2; padding-bottom: 62px; min-width: 0; }
.hero h1 { margin: 32px 0 26px; }
.hero h1 span { color: var(--oxblood); }
.lede { max-width: 355px; color: var(--muted); font-size: 1.0625rem; line-height: 1.75; }
.hero-actions { display: flex; gap: 30px; flex-wrap: wrap; align-items: center; margin-top: 34px; }
.action { display: inline-flex; align-items: center; justify-content: space-between; gap: 25px; padding-block: 13px; min-height: 48px; border-bottom: 1px solid var(--taupe); font-size: .875rem; line-height: 1.5; transition: border-color .3s, color .3s; }
.action:hover { color: var(--oxblood); border-color: var(--brass); }
.action.primary { border: 1px solid var(--walnut); padding: 15px 20px; background: var(--walnut); color: var(--ivory); gap: 32px; transition: background .3s; }
.action.primary:hover { background: var(--oxblood); }
.action span,.text-link span { color: var(--rust); }
.action.primary span { color: var(--limestone); }
.math-field { grid-area: visual; position: relative; width: calc(100% + 36px); margin: 24px -24px 32px -12px; min-width: 0; align-self: stretch; display: flex; flex-direction: column; justify-content: center; }
.field-coordinate { display: flex; justify-content: space-between; padding-inline: 32px; color: var(--muted); font-size: .75rem; letter-spacing: .1em; }
.field-coordinate span:last-child { font-family: var(--serif); font-style: italic; letter-spacing: .06em; }
.plot { width: 100%; aspect-ratio: 1.28; position: relative; isolation: isolate; }
.plot::before { content: ''; position: absolute; inset: 6% 0; z-index: -1; background: radial-gradient(ellipse at 52% 54%, rgba(183,154,104,.12),transparent 64%); }
.plot canvas,.surface-fallback { width: 100%; height: 100%; position: absolute; inset: 0; object-fit: contain; }
.plot canvas { opacity: 0; transition: opacity .7s; }
.math-field.ready canvas { opacity: 1; }
.math-field.ready .surface-fallback { opacity: 0; }
.math-field figcaption { display: flex; align-items: center; justify-content: space-between; gap: 16px; margin-inline: 32px; color: var(--muted); font-size: .75rem; line-height: 1.6; }
#motion-toggle { flex-shrink: 0; min-height: 44px; padding: 10px 0; font-size: .8125rem; color: var(--muted); border: 0; border-bottom: 1px solid transparent; background: none; }
#motion-toggle:hover { border-bottom-color: var(--brass); color: var(--ink); }
.hero-bottom { grid-area: bottom; grid-column: 1/-1; display: flex; align-items: center; gap: 28px; border-top: 1px solid var(--line); padding-block: 14px; color: var(--muted); font-size: .75rem; letter-spacing: .04em; }
.hero-bottom > span:nth-child(2) { margin-left: auto; }
.hero-bottom a { display: flex; width: 44px; min-height: 44px; align-items: center; justify-content: flex-end; font-size: 1.5rem; color: var(--oxblood); }
.thesis { display: grid; grid-template-columns: .34fr 1fr; gap: 50px; }
.thesis > .eyebrow { padding-top: 12px; }
.thesis h2 { font-size: clamp(3.6rem, 6vw, 6.4rem); line-height: 1.06; }
.thesis h2 em { color: var(--oxblood); }
.thesis-copy { display: grid; grid-template-columns: .85fr 1.15fr; gap: 60px; margin-top: 42px; max-width: 750px; }
.thesis-copy p:first-child { font-size: 1.125rem; color: var(--espresso); }
.thesis-copy p:last-child { color: var(--muted); }
.research { border-top: 1px solid var(--line); }
.section-head { display: grid; grid-template-columns: 1fr .74fr; gap: 80px; align-items: end; margin-bottom: 54px; }
.section-head h2 { margin-top: 20px; }
.section-intro { color: var(--muted); max-width: 360px; justify-self: end; }
.research-toolbar { display: flex; justify-content: space-between; align-items: center; gap: 16px; border-block: 1px solid var(--line); margin-bottom: 0; }
.research-filters { display: flex; gap: 28px; min-width: 0; flex-wrap: wrap; }
.research-filters button { background: none; color: var(--muted); border: 0; border-bottom: 2px solid transparent; padding: 18px 0 16px; min-height: 52px; font-size: .875rem; white-space: normal; line-height: 1.5; }
.research-filters button[aria-pressed="true"] { color: var(--oxblood); border-bottom-color: var(--oxblood); }
.research-filters button:hover { color: var(--oxblood); }
.research-count { display: block; color: var(--muted); font-size: .75rem; white-space: nowrap; }
.research-group-label { color: var(--olive); font-size: .875rem; line-height: 1.6; padding: 28px 0 16px; border-bottom: 1px solid var(--line); }
.research-entry { display: grid; grid-template-columns: minmax(120px,.5fr) minmax(0,1.55fr) minmax(100px,.36fr); gap: 44px; padding: 40px 0; border-bottom: 1px solid var(--line); transition: background .35s, border-color .35s; }
.research-entry:hover { background: rgba(234,226,214,.36); border-bottom-color: var(--brass); }
.entry-side { display: flex; flex-direction: column; align-items: flex-start; gap: 9px; }
.category { color: var(--oxblood); font-size: .75rem; line-height: 1.65; letter-spacing: .035em; }
.category.olive { color: var(--olive); }
.format { color: var(--muted); font-size: .75rem; }
.issue { color: var(--muted); font-family: var(--serif); font-size: 2.5rem; line-height: 1; padding-top: 28px; }
.entry-main { min-width: 0; }
.series { color: var(--muted); font-size: .75rem; text-transform: uppercase; letter-spacing: .12em; margin-bottom: 15px; }
.entry-main h3 { font-family: var(--serif); font-size: clamp(1.9rem, 2.55vw, 2.75rem); line-height: 1.18; letter-spacing: -.035em; max-width: 690px; }
.featured { padding-block: 48px; }
.featured .entry-main h3 { font-size: clamp(2.5rem, 3.4vw, 3.5rem); }
.entry-main h3 a:hover { color: var(--oxblood); }
.abstract { max-width: 600px; color: var(--muted); margin-top: 18px; line-height: 1.8; }
.entry-links { display: flex; flex-wrap: wrap; gap: 12px 28px; margin-top: 22px; }
.text-link { display: inline-flex; gap: 14px; align-items: center; min-height: 44px; font-size: .875rem; text-decoration: underline; text-decoration-color: var(--taupe); text-underline-offset: 5px; text-decoration-thickness: 1px; }
.text-link:hover { color: var(--oxblood); text-decoration-color: var(--brass); }
.entry-meta { display: flex; flex-direction: column; align-items: flex-start; gap: 6px; font-size: .75rem; line-height: 1.65; color: var(--muted); padding-top: 2px; }
.explainer-entry .entry-main h3 { font-size: 1.85rem; }
.explainer-entry .abstract { margin-top: 12px; }
.explainer-entry summary { list-style: none; display: flex; gap: 24px; align-items: center; justify-content: space-between; min-height: 44px; cursor: pointer; }
.explainer-entry summary::-webkit-details-marker { display: none; }
.expand { flex-shrink: 0; width: 18px; height: 18px; position: relative; color: var(--oxblood); }
.expand::before,.expand::after { content: ''; background: currentColor; position: absolute; top: 8px; left: 2px; width: 14px; height: 1px; }
.expand::after { transform: rotate(90deg); transition: transform .25s; }
details[open] .expand::after { transform: rotate(0); }
.explainer-body { margin-top: 20px; line-height: 1.85; }
.source-note { color: var(--muted); font-size: .875rem; margin-top: 14px; }
.source-note .text-link { vertical-align: baseline; }
.research-after { display: flex; gap: 24px; justify-content: space-between; align-items: baseline; padding-top: 26px; }
.research-after > span { font-size: .75rem; color: var(--muted); max-width: 450px; }
.research-follow { display: flex; flex-wrap: wrap; gap: 8px 24px; }
.research-empty { padding: 60px 0; max-width: 580px; }
.research-empty h3 { font-family: var(--serif); font-size: 2rem; margin-bottom: 14px; }
.research-empty p { color: var(--muted); margin-bottom: 20px; }
.domains-wrap { background: var(--cream); border-block: 1px solid var(--line); }
.domains { display: grid; grid-template-columns: .7fr 1.3fr; gap: 100px; }
.domains h2 { margin-top: 25px; }
.domain-intro { color: var(--muted); max-width: 290px; margin-top: 28px; }
.domain-list { list-style: none; padding: 0; margin: 0; display: grid; grid-template-columns: 1fr 1fr; gap: 0 36px; }
.domain-list li > div { min-width: 0; overflow-wrap: anywhere; }
.domain-list li { display: flex; gap: 16px; border-top: 1px solid #c3b5a3; padding-block: 25px 30px; min-width: 0; }
.domain-list .index { padding-top: 5px; flex: none; }
.domain-list h3 { font-family: var(--serif); font-size: 1.55rem; line-height: 1.25; }
.domain-list p { margin-top: 13px; color: var(--muted); font-size: 1rem; line-height: 1.75; }
.system-intro { max-width: 440px; justify-self: end; }
.system-intro p + p { margin-top: 16px; color: var(--muted); }
.system-visual { position: relative; margin-block: -8px 30px; }
.convergence { display: block; width: 100%; height: auto; max-height: 280px; fill: none; stroke: var(--brass); stroke-width: .65; }
.convergence path:nth-child(3n) { stroke: var(--oxblood); opacity: .72; }
.convergence path:nth-child(3n+1) { stroke: var(--taupe); }
.convergence path:nth-child(4n) { stroke-dasharray: 70 14; animation: current 35s linear infinite; animation-play-state: paused; }
.system-visual.in-view .convergence path { animation-play-state: running; }
:root[data-motion="paused"] .convergence path { animation-play-state: paused; }
@keyframes current { to { stroke-dashoffset: -336; } }
.diagram-label { position: absolute; bottom: 5px; left: 0; color: var(--muted); font-size: .75rem; }
.system-steps { margin: 0; padding: 0; list-style: none; display: grid; grid-template-columns: repeat(4,minmax(0,1fr)); }
.system-steps li { padding: 26px 32px 0; border-top: 1px solid var(--line); border-right: 1px solid var(--line); }
.system-steps li:first-child { padding-left: 0; }
.system-steps li:last-child { border-right: 0; padding-right: 0; }
.system-steps h3 { font-family: var(--serif); font-size: 1.85rem; margin-block: 16px 12px; }
.system-steps p { overflow-wrap: anywhere; color: var(--muted); font-size: 1rem; }
.about-wrap { background: #eae2d6; }
.about .section-head { align-items: start; grid-template-columns: .75fr 1.25fr; }
.about-copy .intro { font-size: 1.25rem; line-height: 1.65; color: var(--espresso); }
.about-copy p + p { color: var(--muted); margin-top: 24px; max-width: 620px; }
.perspective-row,.practice { display: grid; grid-template-columns: .75fr 1.25fr; gap: 80px; border-top: 1px solid #c3b5a3; padding-top: 42px; margin-top: 54px; }
.perspective-row h3 { font-family: var(--serif); font-size: 1.75rem; }
.pillars { display: grid; grid-template-columns: repeat(2,minmax(0,1fr)); gap: 24px 30px; margin-block: 30px 0; }
.pillars dt { overflow-wrap: anywhere; color: var(--espresso); font-size: 1rem; }
.pillars dd { overflow-wrap: anywhere; margin: 5px 0 0; font-size: 1rem; color: var(--muted); }
.thesis-line { font-size: .875rem; color: var(--muted); margin-top: 26px; }
.practice-list { display: grid; gap: 28px; }
.practice h3 { font-size: 1.0625rem; line-height: 1.45; }
.practice p { margin-top: 7px; color: var(--muted); font-size: 1rem; }
.publications { display: grid; grid-template-columns: 1fr .85fr; gap: 100px; align-items: start; }
.publications h2 { margin-top: 24px; max-width: 560px; }
.publication-link { display: flex; gap: 24px; align-items: center; justify-content: space-between; border-bottom: 1px solid var(--line); padding-block: 18px; font-family: var(--serif); font-size: 1.75rem; min-height: 64px; transition: color .3s,border-color .3s; }
.publication-link:first-child { border-top: 1px solid var(--line); }
.publication-link span { color: var(--oxblood); font-family: var(--sans); font-size: 1.2rem; }
.publication-link:hover { color: var(--oxblood); border-color: var(--brass); }
.site-footer { background: var(--walnut); color: var(--ivory); padding-top: 68px; }
.footer-main { display: flex; justify-content: space-between; gap: 48px; }
.footer-main .brand { letter-spacing: .12em; font-size: 1rem; }
.footer-main p { color: var(--limestone); margin-top: 12px; font-size: .875rem; }
.footer-main .footer-location { margin-top: 24px; font-size: .75rem; }
.footer-contact { padding-top: 4px; }
.footer-contact .eyebrow { margin-bottom: 18px; font-size: .75rem; }
.footer-contact > a { display: inline-flex; align-items: center; min-height: 44px; font-family: var(--serif); font-size: clamp(1.5rem,2.4vw,2.25rem); line-height: 1.4; border-bottom: 1px solid #967e64; overflow-wrap: anywhere; }
.footer-links { display: flex; gap: 32px; margin-top: 40px; align-items: center; padding-bottom: 28px; }
.footer-links a { display: inline-flex; align-items: center; min-height: 44px; font-size: .875rem; text-decoration: none; }
.footer-links .text-link span { color: var(--limestone); }
.site-footer a:hover { color: #dec49b; }
.site-footer a:focus-visible { outline-color: #dec49b; }
.footer-base { display: flex; justify-content: space-between; gap: 24px; border-top: 1px solid #6b5644; padding-block: 25px 30px; color: var(--limestone); font-size: .75rem; }
:lang(zh-Hans) h1,:lang(zh-Hans) h2,:lang(zh-Hans) h3 { font-family: var(--sans); font-weight: 400; }
:lang(zh-Hans) h1 { font-size: clamp(3.1rem,4.9vw,5rem); line-height: 1.3; letter-spacing: -.055em; }
:lang(zh-Hans) h2 { font-size: clamp(2.4rem,3.5vw,3.7rem); line-height: 1.35; letter-spacing: -.03em; }
:lang(zh-Hans) .thesis h2 { font-size: clamp(3rem,5.1vw,5.3rem); }
:lang(zh-Hans) .thesis h2 em { font-style: normal; }
:lang(zh-Hans) h3 { letter-spacing: .01em; line-height: 1.5; }
:lang(zh-Hans) .entry-main h3 { font-size: clamp(1.65rem,2.15vw,2.2rem); }
:lang(zh-Hans) .featured .entry-main h3 { font-size: clamp(2rem,2.8vw,2.85rem); line-height: 1.45; }
:lang(zh-Hans) .domain-list h3 { font-size: 1.375rem; }
:lang(zh-Hans) .lede { max-width: 23em; line-height: 1.85; }
:lang(zh-Hans) .eyebrow { letter-spacing: .13em; }
@media (min-width: 1600px) { .hero { padding-top: 100px; } .hero-copy { padding-bottom: 96px; } }
@media (max-width: 1199px) { .wrap { width: calc(100% - 80px); } .nav { gap: 28px; } .nav-main { gap: 24px; } .hero-actions { gap: 18px; } .hero .action.primary { padding-inline: 15px; gap: 18px; } .hero h1 { font-size: clamp(3rem,5vw,4rem); } .domains { gap: 60px; } .research-entry { gap: 30px; } .section-head { gap: 50px; } .perspective-row,.practice { gap: 50px; } }
@media (max-width: 1099px) {
  :root { --space-section: 88px; }
  .hero { grid-template-columns: 1fr; grid-template-areas: "heading" "copy" "visual" "bottom"; padding-top: 65px; }
  .hero-copy { max-width: 740px; padding-bottom: 0; }
  .hero h1 { font-size: clamp(3.6rem,7.5vw,5rem); }
  :lang(zh-Hans) .hero h1 { font-size: clamp(3.25rem,7vw,4.6rem); }
  .lede { max-width: 450px; }
  .hero-actions { margin-top: 30px; gap: 30px; }
  .math-field { width: min(100%,880px); margin: 44px auto 24px; }
  .plot { aspect-ratio: 1.95; }
  .field-coordinate { padding-inline: 0; }
  .math-field figcaption { margin-inline: 0; }
  .thesis { grid-template-columns: .24fr 1fr; gap: 32px; }
  .thesis-copy { gap: 32px; }
  .section-head { grid-template-columns: 1fr .85fr; gap: 38px; }
  .research-entry { grid-template-columns: minmax(110px,.4fr) minmax(0,1.5fr); gap: 26px; }
  .entry-meta { grid-column: 2; flex-direction: row; flex-wrap: wrap; gap: 8px 20px; margin-top: -8px; }
  .entry-side { grid-row: 1/3; }
  .issue { padding-top: 18px; }
  .research-filters { gap: 24px; }
  .domains { grid-template-columns: 1fr; gap: 44px; }
  .domains > div:first-child { display: grid; grid-template-columns: 1fr 1fr; align-items: end; gap: 0 48px; }
  .domains .eyebrow { grid-column: 1/-1; }
  .domain-intro { margin-top: 0; max-width: 340px; }
  .domain-list { gap: 0 44px; }
  .system-steps li { padding-inline: 20px; }
  .system-steps h3 { font-size: 1.65rem; }
  .about .section-head,.perspective-row,.practice { grid-template-columns: .65fr 1.35fr; gap: 38px; }
  .publications { gap: 48px; grid-template-columns: 1fr .85fr; }
  .footer-contact { max-width: 47%; }
}
@media (max-width: 819px) {
  .wrap { width: calc(100% - 64px); }
  .nav { display: grid; grid-template-columns: minmax(0,1fr) auto; row-gap: 0; padding-top: 16px; }
  .brand { grid-column: 1; grid-row: 1; }
  .language-switch { grid-column: 2; grid-row: 1; }
  .nav-main { grid-column: 1/-1; grid-row: 2; margin: 0; gap: 32px; padding-block: 4px; }
  html { scroll-padding-top: var(--header-offset,138px); }
  .section-head { grid-template-columns: 1fr; gap: 24px; margin-bottom: 38px; }
  .section-intro,.system-intro { justify-self: start; max-width: 570px; }
  .thesis { grid-template-columns: 1fr; gap: 28px; }
  .thesis h2 { font-size: clamp(3.5rem,8vw,4.5rem); }
  .research-filters { gap: 22px; }
  .research-toolbar { flex-wrap: wrap; gap: 0 20px; }
  .research-count { padding-block: 12px; white-space: normal; }
  .about .section-head,.perspective-row,.practice { grid-template-columns: 1fr; gap: 28px; }
  .system-steps { grid-template-columns: repeat(2,minmax(0,1fr)); gap: 28px; }
  .system-steps li,.system-steps li:first-child,.system-steps li:last-child { padding: 20px 0 0; border-right: 0; }
  .publications { grid-template-columns: 1fr; gap: 38px; }
  .publication-links { max-width: none; }
}
@media (max-width: 639px) {
  :root { --space-section: 68px; --mobile-gutter: 24px; }
  .wrap { width: calc(100% - 48px); }
  html { scroll-padding-top: var(--header-offset,128px); }
  .nav { padding-top: max(8px,env(safe-area-inset-top)); column-gap: 8px; }
  .brand { font-size: .8125rem; font-weight: 600; letter-spacing: .07em; }
  .language-switch { gap: 0; }
  .language-switch a { min-width: 44px; }
  .language-switch a[aria-current],.language-switch > span { display: none; }
  .nav-main { justify-content: space-between; padding-block: 2px 5px; gap: 18px; }
  .nav-main a { font-size: .875rem; }
  .nav-main a::after { bottom: 4px; }
  .hero { padding-top: 32px; grid-template-areas: "heading" "visual" "copy" "bottom"; }
  .hero h1 { font-size: clamp(2.7rem,11.45vw,4rem); line-height: 1.065; letter-spacing: -.055em; margin-block: 25px 25px; }
  :lang(zh-Hans) .hero h1 { font-size: clamp(2.25rem,9.65vw,3.55rem); line-height: 1.35; letter-spacing: -.045em; }
  .hero .eyebrow { font-size: .75rem; letter-spacing: .12em; }
  .lede { font-size: 1.0625rem; max-width: 32ch; line-height: 1.75; color: #514439; }
  :lang(zh-Hans) .lede { max-width: 22em; }
  .hero-actions { gap: 12px 24px; margin-top: 27px; }
  .hero .action { font-size: .875rem; }
  .hero .action.primary { padding: 14px 16px; gap: 20px; background: var(--oxblood); border-color: var(--oxblood); }
  .math-field { width: calc(100% + 2 * var(--mobile-gutter)); margin: 4px calc(-1 * var(--mobile-gutter)) 27px; padding: 17px var(--mobile-gutter) 8px; border-block: 1px solid #c5ae92; background: radial-gradient(ellipse at 82% 34%,rgba(134,70,56,.1),transparent 67%),linear-gradient(135deg,#e8d9c5,#f1e8dc 56%,#e3d4c1); }
  .math-field .field-coordinate { padding-inline: 0; color: #69513b; letter-spacing: .12em; }
  .math-field figcaption { margin-inline: 0; flex-wrap: wrap; color: #514439; border-top: 1px solid rgba(113,56,46,.24); padding-top: 2px; }
  .math-field #motion-toggle { color: var(--oxblood); margin-left: auto; }
  .math-field .plot { width: calc(100% + 2 * var(--mobile-gutter)); margin-inline: calc(-1 * var(--mobile-gutter)); aspect-ratio: 1.5; }
  .hero-bottom { margin-top: 30px; }
  .hero-copy { padding-bottom: 0; }
  .hero-heading h1 { margin-bottom: 27px; }
  .field-coordinate { padding-inline: 16px; font-size: .75rem; }
  .plot { aspect-ratio: 1.42; }
  .math-field figcaption { margin-inline: 0; gap: 12px; font-size: .75rem; }
  #motion-toggle { font-size: .75rem; }
  .hero-bottom { gap: 5px 14px; flex-wrap: wrap; padding-block: 12px; font-size: .75rem; letter-spacing: 0; }
  .hero-bottom > span:nth-child(2) { margin-left: 0; flex: 1; text-align: right; }
  .hero-bottom a { display: none; }
  h2 { font-size: clamp(2.15rem,8.6vw,3rem); line-height: 1.15; }
  .thesis { gap: 25px; width: 100%; padding: 44px var(--mobile-gutter) 48px; margin-top: 22px; background: var(--walnut); color: var(--ivory); border-top: 3px solid var(--brass); }
  .thesis.wrap { width: 100%; }
  .thesis > .eyebrow { color: #d7b58b; }
  .thesis h2 em { color: #d6ad91; }
  .thesis .thesis-copy p:first-child { color: var(--ivory); }
  .thesis .thesis-copy p:last-child:not(:first-child) { color: var(--limestone); }
  .research { border-top: 0; }
  .research .section-head { border-top: 2px solid var(--oxblood); padding-top: 24px; }
  .thesis > .eyebrow { padding-top: 0; }
  .thesis h2 { font-size: clamp(2.7rem,10.75vw,3.8rem); line-height: 1.12; }
  .thesis-copy { grid-template-columns: 1fr; gap: 24px; margin-top: 30px; }
  .thesis-copy p:first-child { font-size: 1.125rem; }
  .section-head h2 { margin-top: 18px; }
  .section-head { gap: 22px; margin-bottom: 32px; }
  .section-intro { font-size: 1rem; }
  .research-toolbar { display: block; }
  .research-filters { display: grid; grid-template-columns: minmax(0,.6fr) minmax(0,1.4fr) minmax(0,1fr); gap: 4px; padding-block: 8px; }
  .research-filters button { font-size: .875rem; text-align: left; min-height: 48px; padding: 12px 8px; width: 100%; color: var(--espresso); background: #e8dfd2; border-bottom-width: 1px; }
  .research-filters button[aria-pressed="true"] { background: var(--oxblood); color: var(--ivory); border-bottom-color: var(--oxblood); }
  .research-filters button:focus-visible { outline-offset: 2px; }
  .research-entry.featured { border-bottom: 1px solid #ae8d73; padding-block: 34px; }
  .featured .entry-main h3 { color: var(--oxblood); }
  .research-entry.explainer-entry { padding-block: 26px; }
  .entry-side:has(.issue) { display: grid; grid-template-columns: minmax(0,1fr) auto; gap: 3px 20px; }
  .entry-side .issue { display: block; grid-column: 2; grid-row: 1 / 3; padding: 0; color: var(--oxblood); font-size: 2rem; align-self: center; }
  .entry-side:has(.issue) .category,.entry-side:has(.issue) .format { grid-column: 1; }
  .research-entry .abstract { color: #514439; }
  .research-entry .entry-meta { border-left: 2px solid var(--taupe); padding-left: 12px; }
  .entry-links .text-link { color: var(--oxblood); text-decoration-color: #ae8d73; }
  .research-entry { display: flex; flex-direction: column; padding-block: 30px; gap: 18px; }
  .entry-side { flex-direction: row; flex-wrap: wrap; gap: 8px 16px; align-items: baseline; }
  .issue { display: none; }
  .category { font-size: .75rem; }
  .format { font-size: .75rem; }
  .entry-main h3 { font-size: clamp(1.85rem,7.4vw,2.3rem); line-height: 1.2; }
  .featured .entry-main h3 { font-size: clamp(2rem,8vw,2.65rem); line-height: 1.2; }
  .series { margin-bottom: 12px; }
  .abstract { font-size: 1rem; line-height: 1.8; margin-top: 18px; }
  .entry-links { gap: 8px 24px; margin-top: 18px; }
  .entry-meta { margin-top: 0; font-size: .75rem; gap: 6px 16px; }
  .explainer-entry .entry-main h3 { font-size: clamp(1.6rem,6.4vw,2rem); }
  .explainer-entry summary { gap: 16px; }
  .explainer-body { line-height: 1.8; }
  .source-note { font-size: .875rem; }
  .research-after { flex-direction: column; gap: 12px; padding-top: 22px; }
  .research-empty { padding-block: 40px; }
  .domains { gap: 32px; }
  .domains > div:first-child { display: block; }
  .domains h2 { margin-top: 18px; }
  .domain-intro { margin-top: 22px; max-width: none; }
  .domain-list { grid-template-columns: 1fr; }
  .domain-list li { gap: 20px; padding-block: 23px; }
  .domain-list .index { color: var(--olive); font-size: .9375rem; font-weight: 500; }
  .domains-wrap { background: #e6ddcd; }
  .system .section-head { border-top: 2px solid var(--olive); padding-top: 25px; }
  .system .system-visual { background: #e9dfd0; margin-inline: calc(-1 * var(--mobile-gutter)); padding: 16px var(--mobile-gutter) 32px; }
  .system .convergence { stroke: #906b3e; stroke-width: 1.2; }
  .system .convergence path:nth-child(3n+1) { stroke: #9f8060; }
  .system .diagram-label { bottom: 14px; left: var(--mobile-gutter); color: #514439; }
  .system .system-steps li { border-top-color: #ae9276; }
  .system-steps .index { color: var(--olive); font-size: .875rem; }
  .about-wrap { background: var(--ivory); border-top: 1px solid #bba58c; }
  .about .pillars { grid-template-columns: 1fr; gap: 0; }
  .about .pillars > div { padding-block: 18px; border-top: 1px solid var(--line); }
  .about .pillars dt { color: var(--oxblood); font-weight: 500; }
  .publications { border-top: 1px solid #bba58c; }
  .publication-link { border-bottom-color: #bba58c; }
  .publication-link > span { width: 36px; height: 36px; display: grid; place-items: center; background: var(--oxblood); color: var(--ivory); font-size: 1rem; flex-shrink: 0; }
  .site-footer .eyebrow { color: #d7b58b; }
  .domain-list h3 { font-size: 1.5rem; }
  .domain-list p { font-size: 1rem; margin-top: 8px; }
  .system-intro p { font-size: 1rem; }
  .system-visual { margin-block: 20px 28px; padding-bottom: 26px; }
  .convergence { height: 144px; }
  .diagram-label { bottom: 0; }
  .system-steps { grid-template-columns: 1fr 1fr; gap: 28px 24px; }
  .system-steps li,.system-steps li:first-child,.system-steps li:last-child { padding: 18px 0 0; border-right: 0; }
  .system-steps h3 { font-size: 1.65rem; margin-block: 12px 10px; }
  .system-steps p { font-size: 1rem; line-height: 1.7; }
  .about-copy .intro { font-size: 1.125rem; line-height: 1.8; }
  .perspective-row,.practice { margin-top: 36px; padding-top: 30px; gap: 23px; }
  .perspective-row h3 { font-size: 1.6rem; }
  .pillars { gap: 22px; margin-top: 24px; }
  .pillars dd { font-size: 1rem; }
  .practice-list { gap: 25px; }
  .practice h3 { font-size: 1.0625rem; }
  .practice p { font-size: 1rem; }
  .publications { gap: 30px; }
  .publications h2 { margin-top: 18px; }
  .publication-link { font-size: 1.6rem; }
  .site-footer { padding-top: 44px; }
  .footer-main { display: block; }
  .footer-main .brand { font-size: .875rem; }
  .footer-main p { margin-top: 5px; }
  .footer-main .footer-location { margin-top: 16px; }
  .footer-contact { max-width: none; margin-top: 32px; }
  .footer-contact .eyebrow { line-height: 1.8; margin-bottom: 12px; }
  .footer-contact > a { font-size: clamp(1.5rem,6.6vw,2rem); }
  .footer-links { gap: 12px 24px; flex-wrap: wrap; margin-top: 26px; padding-bottom: 20px; }
  .footer-base { flex-direction: column; gap: 7px; padding-block: 21px max(28px,env(safe-area-inset-bottom)); }
  :lang(zh-Hans) h2 { font-size: clamp(1.95rem,7.5vw,2.7rem); line-height: 1.4; letter-spacing: -.035em; }
  :lang(zh-Hans) .thesis h2 { font-size: clamp(2.1rem,8.2vw,3rem); line-height: 1.4; }
  :lang(zh-Hans) .entry-main h3 { font-size: 1.65rem; line-height: 1.5; }
  :lang(zh-Hans) .featured .entry-main h3 { font-size: clamp(1.8rem,7vw,2.35rem); line-height: 1.45; }
  :lang(zh-Hans) .domain-list h3 { font-size: 1.375rem; }
  :lang(zh-Hans) .system-steps h3 { font-size: 1.4rem; }
  :lang(zh-Hans) h2,:lang(zh-Hans) h3 { font-weight: 500; }
}
@media (max-width: 380px) {
  :root { --mobile-gutter: 20px; }
  .wrap { width: calc(100% - 40px); }
  .hero h1 { font-size: clamp(2.4rem,10.95vw,2.7rem); }
  :lang(zh-Hans) .hero h1 { font-size: clamp(2.1rem,9.5vw,2.35rem); }
  .hero-actions { gap: 8px 18px; }
  .hero .action.primary { padding-inline: 12px; gap: 14px; }
  .brand { letter-spacing: .065em; }
  .hero-bottom > span { flex-basis: 100%; }
  .hero-bottom > span:nth-child(2) { text-align: left; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *,*::before,*::after { animation: none !important; transition: none !important; }
}
@media (forced-colors: active) { .action.primary { border: 1px solid ButtonText; } .research-filters button[aria-pressed="true"] { border-bottom-color: Highlight; } .expand { color: ButtonText; } }
@media print {
  .site-header { position: static; } .wrap { width: 100%; } .section { padding-block: 28px; }
  .math-field,.research-toolbar,.hero-actions,.hero-bottom,.system-visual { display: none; }
  .hero,.thesis,.section-head,.domains,.about .section-head,.publications { display: block; }
  .site-footer { color: #231d19; background: none; } .site-footer p,.footer-base { color: #302721; }
  .research-entry { break-inside: avoid; } details > * { display: block !important; }
}