:root {
  --ink: #1d1a20;
  --muted: #66616a;
  --accent: #6f2c91;
  --accent-dark: #4d1d66;
  --accent-soft: #f4edf7;
  --line: #ddd8df;
  --surface: #f7f6f8;
  --white: #fff;
  --max-width: 1080px;
}

*, *::before, *::after { box-sizing: border-box; }

html {
  color-scheme: light;
  font-size: 100%;
}

body {
  margin: 0;
  color: var(--ink);
  background: var(--white);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  font-size: 1rem;
  line-height: 1.65;
}

a {
  color: var(--accent-dark);
  text-decoration-thickness: 1px;
  text-underline-offset: .18em;
}

a:hover { color: var(--accent); }

a:focus-visible, button:focus-visible {
  outline: 3px solid rgba(111, 44, 145, .28);
  outline-offset: 3px;
}

h1, h2, h3 {
  margin-top: 0;
  color: var(--ink);
  font-family: Georgia, "Times New Roman", serif;
  font-weight: 600;
  line-height: 1.18;
}

h1 {
  max-width: 18ch;
  margin-bottom: 1rem;
  font-size: clamp(2.25rem, 7vw, 4.6rem);
  letter-spacing: -.035em;
}

h2 {
  margin-bottom: 1rem;
  font-size: clamp(1.55rem, 3vw, 2.1rem);
  letter-spacing: -.02em;
}

h3 {
  margin-bottom: .35rem;
  font-size: 1.22rem;
}

p { margin-top: 0; }

[data-lang-content][hidden] { display: none !important; }

.container {
  width: min(calc(100% - 2.5rem), var(--max-width));
  margin-inline: auto;
}

.skip-link {
  position: fixed;
  top: .5rem;
  left: .5rem;
  z-index: 100;
  padding: .6rem .85rem;
  color: var(--white);
  background: var(--accent-dark);
  transform: translateY(-160%);
}

.skip-link:focus { transform: translateY(0); }

.site-header {
  position: relative;
  border-top: 5px solid var(--accent);
  border-bottom: 1px solid var(--line);
  background: var(--white);
}

.header-inner {
  display: flex;
  min-height: 5rem;
  align-items: center;
  justify-content: space-between;
  gap: 1.25rem 2rem;
}

.site-name {
  display: inline-flex;
  align-items: center;
  gap: .75rem;
  color: var(--ink);
  font-family: Georgia, "Times New Roman", serif;
  font-size: 1.15rem;
  font-weight: 700;
  text-decoration: none;
  white-space: nowrap;
}

.site-mark {
  display: grid;
  width: 2.3rem;
  height: 2.3rem;
  place-items: center;
  color: var(--white);
  background: var(--accent);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: .72rem;
  letter-spacing: .07em;
}

.muted-at { color: var(--accent); }

.nav-list {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: .25rem 1.35rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.nav-list a {
  display: inline-block;
  padding: .35rem 0;
  color: var(--ink);
  font-size: .93rem;
  font-weight: 600;
  text-decoration: none;
}

.nav-list a:hover, .nav-list a[aria-current="page"] { color: var(--accent); }
.nav-list a[aria-current="page"] { box-shadow: inset 0 -2px var(--accent); }

.language-switcher {
  display: inline-flex;
  flex: 0 0 auto;
  align-items: center;
  gap: .4rem;
  color: var(--muted);
  font-size: .82rem;
}

.language-switcher button {
  padding: .25rem 0;
  color: var(--muted);
  border: 0;
  border-bottom: 2px solid transparent;
  background: transparent;
  font: inherit;
  font-weight: 650;
  cursor: pointer;
}

.language-switcher button:hover,
.language-switcher button[aria-pressed="true"] {
  color: var(--accent-dark);
  border-bottom-color: var(--accent);
}

.main-content {
  min-height: 68vh;
  padding-top: clamp(3rem, 7vw, 6rem);
  padding-bottom: clamp(4rem, 9vw, 7rem);
}

.home-intro, .page-header {
  max-width: 850px;
  margin-bottom: clamp(2.8rem, 7vw, 5rem);
}

.kicker, .eyebrow {
  margin-bottom: .55rem;
  color: var(--accent-dark);
  font-size: .79rem;
  font-weight: 700;
  letter-spacing: .085em;
  line-height: 1.45;
  text-transform: uppercase;
}

[lang="zh-CN"].kicker,
[lang="zh-CN"] .kicker,
[lang="zh-CN"].eyebrow,
[lang="zh-CN"] .eyebrow {
  letter-spacing: .04em;
}

.lede {
  max-width: 710px;
  margin-bottom: 0;
  color: var(--muted);
  font-family: Georgia, "Times New Roman", serif;
  font-size: clamp(1.15rem, 2vw, 1.4rem);
  line-height: 1.55;
}

.section-heading {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: .3rem;
  padding-bottom: .9rem;
  border-bottom: 2px solid var(--ink);
}

.section-heading h2, .section-heading p { margin-bottom: 0; }

.section-link {
  flex: 0 0 auto;
  padding-bottom: .15rem;
  font-size: .88rem;
  font-weight: 700;
  text-decoration: none;
}

.seminar-list { max-width: 880px; }

.seminar-item {
  display: grid;
  grid-template-columns: 4.25rem 1fr;
  gap: 1.15rem;
  padding: 1.35rem 0;
  border-bottom: 1px solid var(--line);
}

.date-block {
  align-self: start;
  padding: .45rem .3rem .55rem;
  color: var(--accent-dark);
  border: 1px solid var(--line);
  text-align: center;
}

.date-block span, .date-block strong { display: block; line-height: 1; }

.date-block span {
  margin-bottom: .25rem;
  font-size: .7rem;
  font-weight: 700;
  letter-spacing: .06em;
  text-transform: uppercase;
}

.date-block strong {
  font-family: Georgia, "Times New Roman", serif;
  font-size: 1.65rem;
}

.seminar-summary p { margin-bottom: 0; }
.speaker { color: var(--muted); font-size: .94rem; }

.seminar-link {
  color: inherit;
  text-decoration: none;
}

.seminar-link:hover {
  color: var(--accent-dark);
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: .18em;
}

.seminar-item[id] {
  scroll-margin-top: 1rem;
}

.seminar-item[id]:target {
  margin-inline: -.8rem;
  padding-inline: .8rem;
  background: var(--accent-soft);
}

.tag {
  display: inline-block;
  margin-left: .5rem;
  padding: .1rem .4rem;
  color: var(--muted);
  border: 1px solid var(--line);
  font-size: .68rem;
  letter-spacing: .04em;
}

.is-cancelled h3, .is-cancelled .date-block { color: var(--muted); }

.schedule-note, .term-card {
  border-left: 4px solid var(--accent);
  background: var(--accent-soft);
}

.schedule-note {
  display: flex;
  flex-direction: column;
  gap: .2rem;
  max-width: 880px;
  margin-top: 1.5rem;
  padding: 1.1rem 1.25rem;
  font-size: .9rem;
}

.schedule-note span { color: var(--muted); }

.term-card {
  display: grid;
  grid-template-columns: minmax(180px, .45fr) minmax(0, 1fr);
  gap: 2rem;
  max-width: 880px;
  margin-bottom: 3.5rem;
  padding: clamp(1.4rem, 4vw, 2rem);
}

.term-card h2, .term-card p, .term-card dl, .term-card dd { margin-bottom: 0; }
.term-card dl { margin-top: 0; }
.term-card dl div + div { margin-top: .8rem; }

.term-card dt {
  color: var(--muted);
  font-size: .78rem;
  font-weight: 700;
  letter-spacing: .07em;
  text-transform: uppercase;
}

.term-card dd { margin-left: 0; }

.abstract {
  grid-column: 2;
  max-width: 720px;
  margin-top: .6rem;
  padding-top: 1rem;
  border-top: 1px solid var(--line);
}

.abstract h4 {
  margin: 0 0 .45rem;
  font-size: .78rem;
  letter-spacing: .07em;
  text-transform: uppercase;
}

.abstract p { margin-bottom: 0; }

.prose { max-width: 760px; }
.prose h2 { margin-top: 2.8rem; }
.prose p, .prose ul { margin-bottom: 1.25rem; }
.prose li + li { margin-top: .45rem; }

.people-list {
  columns: 2;
  column-gap: 3rem;
  padding-left: 1.25rem;
}

.people-list li { break-inside: avoid; margin-bottom: .45rem; }

.archive-note {
  max-width: 880px;
  margin-top: 1.5rem;
  color: var(--muted);
  font-size: .92rem;
}

.noscript-notice {
  margin: 1.25rem 0;
  padding: 1rem 1.2rem;
  border-left: 4px solid var(--accent);
  background: var(--accent-soft);
  color: var(--muted);
}

.noscript-notice p { margin-bottom: .45rem; }
.noscript-notice p:last-child { margin-bottom: 0; }

noscript .abstract p + p { margin-top: .8rem; }

.site-footer {
  padding: 2.25rem 0;
  border-top: 1px solid var(--line);
  background: var(--surface);
}

.footer-inner {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 1rem 2rem;
  color: var(--muted);
  font-size: .87rem;
}

.footer-inner p { margin: 0; }

@media (max-width: 760px) {
  .header-inner {
    align-items: flex-start;
    flex-direction: column;
    padding-top: 1rem;
    padding-bottom: .8rem;
  }

  .nav-list { justify-content: flex-start; }

  .language-switcher {
    position: absolute;
    top: 1rem;
    right: 1.25rem;
  }

  .term-card { grid-template-columns: 1fr; }
  .abstract { grid-column: 1 / -1; }
  .footer-inner { align-items: flex-start; flex-direction: column; }
}

@media (max-width: 440px) {
  .container { width: min(calc(100% - 1.5rem), var(--max-width)); }
  .nav-list { column-gap: 1rem; }
  .seminar-item { grid-template-columns: 3.65rem 1fr; gap: .85rem; }
  .section-heading { align-items: flex-start; flex-direction: column; }
  .people-list { columns: 1; }
}

@media print {
  .site-header, .site-footer { display: none; }
  .main-content { padding: 0; }
  a { color: inherit; }
}