/* ============================================================
   学术主页样式：衬线标题 + 无衬线正文，左栏简历式侧栏，
   吸顶导航，明暗两套配色。全部颜色、字体、版心集中在 :root，
   深色模式只覆盖同名变量。参考 ntdxyg.github.io 的版式语言。
   ============================================================ */

:root {
  --paper: #ffffff;
  --ink: #16181d;
  --muted: #525a66;
  --faint: #6b7380;
  --rule: #e3e6ea;
  --rule-soft: #eef1f4;
  --link: #1c4c78;
  --link-hover: #10345a;
  --rose: #8c3b34;
  --tag-bg: #f2f4f7;
  --serif: "Iowan Old Style", "Palatino Linotype", Palatino, "Book Antiqua",
    Georgia, "Times New Roman", "Songti SC", STSong, "Source Han Serif SC",
    "Noto Serif SC", SimSun, serif;
  --sans: "Inter", "Segoe UI", "Helvetica Neue", Helvetica, Arial,
    "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC",
    sans-serif;
  --mono: "SFMono-Regular", Consolas, "Liberation Mono", Menlo, monospace;
  --space-2: 8px;
  --space-3: 12px;
  --space-4: 16px;
  --space-6: 24px;
  --space-8: 32px;
  --max: 1100px;
  color-scheme: light;
}

[data-theme="dark"] {
  --paper: #0f1113;
  --ink: #e6e7e9;
  --muted: #9fa6b0;
  --faint: #868d99;
  --rule: #333a44;
  --rule-soft: #232a32;
  --link: #8db6dd;
  --link-hover: #b3d2ec;
  --rose: #d99c93;
  --tag-bg: #1b2128;
  color-scheme: dark;
}

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

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.82;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  font-feature-settings: "kern" 1;
  text-rendering: optimizeLegibility;
}

img { max-width: 100%; display: block; }

a { color: var(--link); text-decoration: none; }
a:hover { text-decoration: underline; text-underline-offset: 2px; }

h1, h2, h3, h4, p, dl, dd, ul, ol { margin-top: 0; }
h1, h2 { text-wrap: balance; }
p { text-wrap: pretty; }

::selection { background: var(--ink); color: var(--paper); }

:focus-visible { outline: 2px solid var(--link); outline-offset: 3px; }

.container {
  width: min(100% - 48px, var(--max));
  margin-inline: auto;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
  border: 0;
}

.skip-link {
  position: absolute;
  left: 12px;
  top: -48px;
  z-index: 80;
  padding: 8px 14px;
  background: var(--ink);
  color: var(--paper);
  font-size: 13px;
  border-radius: 4px;
  transition: top .18s ease;
}

.skip-link:focus { top: 10px; text-decoration: none; }

/* ---------- Top bar ---------- */
.topbar {
  position: sticky;
  top: 0;
  z-index: 30;
  border-bottom: 1px solid var(--rule);
  background: var(--paper);
}

.topbar-inner {
  display: flex;
  align-items: center;
  gap: 4px 20px;
  min-height: 46px;
  padding: 6px 0;
}

.brand {
  display: inline-flex;
  align-items: baseline;
  gap: 8px;
  color: var(--ink);
  white-space: nowrap;
}

.brand:hover { text-decoration: none; }

.brand-zh {
  font-family: var(--serif);
  font-size: 15px;
  font-weight: 600;
  letter-spacing: .06em;
}

.brand-en {
  font-size: 10.5px;
  letter-spacing: .16em;
  color: var(--faint);
}

.content-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 4px 22px;
  margin-left: auto;
  font-size: 12.8px;
}

.content-nav a {
  padding: 2px 0;
  color: var(--muted);
  white-space: nowrap;
}

.content-nav a:hover { color: var(--ink); text-decoration: none; }

.content-nav a.active {
  color: var(--ink);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.content-nav.sub {
  margin: 0 0 24px;
  padding: 0 0 12px;
  border-bottom: 1px solid var(--rule-soft);
  font-size: 12.3px;
}

.content-nav.sub a { color: var(--faint); }
.content-nav.sub a:hover { color: var(--ink); }

.controls {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 12.5px;
}

/* language: 中文 / EN */
.lang-switch {
  display: inline-flex;
  align-items: center;
  padding: 2px;
  border-radius: 999px;
  box-shadow: inset 0 0 0 1px var(--rule);
}

.lang-option {
  min-width: 36px;
  padding: 3px 5px;
  border-radius: 999px;
  color: var(--muted);
  font-size: 11.5px;
  line-height: 1.5;
  text-align: center;
  white-space: nowrap;
}

.lang-option:hover { color: var(--ink); text-decoration: none; }

.lang-option.active,
.lang-option.active:hover {
  background: var(--ink);
  color: var(--paper);
}

/* theme: capsule segmented switch */
.theme-switch {
  position: relative;
  display: inline-flex;
  padding: 2px;
  border-radius: 999px;
  box-shadow: inset 0 0 0 1px var(--rule);
}

.theme-switch-thumb {
  position: absolute;
  top: 2px;
  bottom: 2px;
  left: 2px;
  width: calc(50% - 2px);
  border-radius: 999px;
  background: var(--ink);
  transition: transform .22s ease;
}

[data-theme="dark"] .theme-switch-thumb { transform: translateX(100%); }

.theme-option {
  position: relative;
  z-index: 1;
  width: 52px;
  padding: 3px 0;
  border: 0;
  background: none;
  color: var(--muted);
  font: inherit;
  font-size: 11.5px;
  line-height: 1.5;
  text-align: center;
  cursor: pointer;
  transition: color .18s ease;
}

.theme-option:hover { color: var(--ink); }
.theme-option[aria-pressed="true"],
.theme-option[aria-pressed="true"]:hover { color: var(--paper); }

/* ---------- Layout ---------- */
.layout {
  display: grid;
  grid-template-columns: 318px minmax(0, 1fr);
  column-gap: 56px;
  align-items: start;
  padding: 34px 0 50px;
}

.sidebar {
  position: sticky;
  top: 62px;
  align-self: start;
  display: grid;
  grid-template-columns: 108px minmax(0, 1fr);
  column-gap: 14px;
  align-items: start;
}

.portrait {
  grid-column: 1;
  grid-row: 1;
  width: 108px;
  height: auto;
  aspect-ratio: 4 / 5;
  object-fit: cover;
  object-position: 50% 24%;
  border: 1px solid var(--rule-soft);
  border-radius: 12px;
  align-self: center;
}

.identity {
  grid-column: 2;
  grid-row: 1;
  min-width: 0;
  align-self: center;
}

.identity h1,
.identity-name {
  margin: 0;
  font-family: var(--serif);
  font-size: 1.8rem;
  font-weight: 600;
  line-height: 1.3;
  letter-spacing: .02em;
}

.latin {
  margin: 3px 0 0;
  font-size: 11px;
  font-weight: 400;
  letter-spacing: .16em;
  color: var(--faint);
}

.role {
  margin: 8px 0 0;
  font-size: 13px;
  line-height: 1.45;
  color: var(--muted);
}

.role-line { display: block; }
.role-line + .role-line { margin-top: 1px; }

.metrics {
  grid-column: 1 / -1;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  margin: 22px 0 0;
  padding: 12px 0;
  border-top: 1px solid var(--rule);
  border-bottom: 1px solid var(--rule);
}

.metrics div { display: flex; flex-direction: column-reverse; }

.metrics dt {
  font-size: 11.5px;
  line-height: 1.6;
  letter-spacing: .08em;
  color: var(--faint);
}

.metrics dd {
  margin: 0;
  font-family: var(--serif);
  font-size: 17px;
  font-weight: 600;
  line-height: 1.35;
}

.side-contact {
  grid-column: 1 / -1;
  margin: 20px 0 0;
  padding: 0;
  list-style: none;
  font-size: 13px;
  line-height: 2;
}

.side-contact a,
.side-contact button.cv-print {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  padding: 0;
  border: 0;
  background: none;
  color: var(--muted);
  font: inherit;
  font-size: 13px;
  line-height: 1;
  cursor: pointer;
}

.side-contact svg {
  display: block;
  flex-shrink: 0;
  width: 14px;
  height: 14px;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.5;
  stroke-linecap: round;
  stroke-linejoin: round;
  color: var(--faint);
}

.side-contact a:hover,
.side-contact button.cv-print:hover { color: var(--ink); text-decoration: none; }

.side-contact a:hover svg,
.side-contact button.cv-print:hover svg { color: var(--ink); }

.side-block {
  grid-column: 1 / -1;
  margin-top: 20px;
  padding-top: 13px;
  border-top: 1px solid var(--rule);
}

.side-title {
  margin: 0 0 8px;
  font-family: var(--serif);
  font-size: 12.5px;
  font-weight: 600;
  letter-spacing: .06em;
}

.side-text {
  margin: 0;
  font-size: 12.5px;
  line-height: 1.7;
  color: var(--muted);
}

.side-card {
  grid-column: 1 / -1;
  margin-top: 18px;
  padding: 11px 12px 12px;
  border: 1px solid var(--rule);
  background: var(--rule-soft);
}

.card-title {
  margin: 0 0 4px;
  font-size: 12.3px;
  font-weight: 600;
  letter-spacing: .02em;
}

.card-text {
  margin: 0 0 6px;
  font-size: 11.8px;
  line-height: 1.6;
  color: var(--muted);
}

.card-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 11.8px;
  line-height: 1;
}

.card-link span { word-break: break-all; }

.card-link svg {
  display: block;
  flex-shrink: 0;
  width: 14px;
  height: 14px;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.5;
  stroke-linecap: round;
  stroke-linejoin: round;
  color: var(--faint);
}

.card-link:hover svg { color: var(--ink); }

.side-meta {
  grid-column: 1 / -1;
  display: flex;
  flex-wrap: wrap;
  gap: 3px 12px;
  margin-top: 18px;
  padding-top: 11px;
  border-top: 1px solid var(--rule);
  font-size: 11px;
  color: var(--faint);
}

.meta-item {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin: 0;
  font-variant-numeric: tabular-nums;
}

.meta-item svg {
  width: 12px;
  height: 12px;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.6;
  stroke-linecap: round;
  stroke-linejoin: round;
}

/* ---------- Content ---------- */
.content { min-width: 0; }

.lede {
  margin: 0 0 34px;
  font-size: 15px;
  line-height: 1.85;
  color: var(--muted);
}

.lede strong { color: var(--ink); font-weight: 600; }

.page-title {
  margin: 0 0 14px;
  font-family: var(--serif);
  font-size: 1.55rem;
  font-weight: 600;
  line-height: 1.45;
  letter-spacing: .03em;
}

.page-title + .lede { margin-bottom: 30px; }

.section {
  margin: 0 0 42px;
  scroll-margin-top: 56px;
}

.section:last-child { margin-bottom: 0; }

.section h2 {
  margin: 0 0 16px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--rule);
  font-family: var(--serif);
  font-size: 1.15rem;
  font-weight: 600;
  line-height: 1.5;
  letter-spacing: .04em;
}

.section-body { min-width: 0; }

/* ---------- Research interests ---------- */
.interests { margin: 0; }

.interest {
  display: grid;
  grid-template-columns: minmax(max-content, 168px) minmax(0, 1fr);
  gap: 18px;
}

.interest + .interest { margin-top: 10px; }

.interest dt {
  font-family: var(--serif);
  font-size: 14.5px;
  font-weight: 600;
  line-height: 1.75;
  letter-spacing: .02em;
  white-space: nowrap;
}

.interest dd {
  margin: 0;
  font-size: 14.2px;
  line-height: 1.8;
  color: var(--muted);
  text-align: right;
}

.interest dd a { color: var(--link); }

/* ---------- Experience / projects ---------- */
.rows {
  margin: 0;
  padding: 0;
  list-style: none;
}

.row {
  display: grid;
  grid-template-columns: 128px minmax(0, 1fr);
  gap: 26px;
  padding: 10px 0;
}

.row + .row { border-top: 1px solid var(--rule-soft); }

.when {
  padding-top: 2px;
  font-size: 12.5px;
  line-height: 1.6;
  color: var(--faint);
  font-variant-numeric: tabular-nums;
  letter-spacing: .01em;
}

.primary {
  margin: 0;
  font-size: 14.5px;
  font-weight: 600;
  line-height: 1.6;
}

.place {
  margin-left: 8px;
  font-size: 12.5px;
  font-weight: 400;
  color: var(--faint);
}

.what {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: 2px 16px;
}

.secondary {
  margin: 2px 0 0;
  font-size: 13.5px;
  line-height: 1.7;
  color: var(--muted);
}

.advisor {
  flex: 0 0 auto;
  margin: 0 0 0 auto;
  font-size: 13.5px;
  line-height: 1.7;
  text-align: right;
  color: var(--muted);
  white-space: nowrap;
}

.secondary a { color: var(--link); }

/* ---------- Publications ---------- */
.note {
  margin: 0 0 var(--space-4);
  font-size: 12.3px;
  line-height: 1.7;
  letter-spacing: .01em;
  color: var(--faint);
}

.note .me { color: var(--muted); font-weight: 400; }

.note-count,
.note-rank {
  margin-left: 12px;
  padding-left: 12px;
  border-left: 1px solid var(--rule);
  color: var(--muted);
}

.group .note-count {
  margin-left: 9px;
  padding-left: 0;
  border-left: 0;
  font-family: var(--sans);
  font-size: 11.5px;
  font-weight: 400;
  letter-spacing: 0;
  color: var(--faint);
}

.pub-bar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 8px 16px;
  margin-bottom: var(--space-4);
}

.pub-bar .note { margin-bottom: 0; }

.pub-switches {
  display: inline-flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  font-size: 11.5px;
  color: var(--faint);
}

.rank-select {
  appearance: none;
  -webkit-appearance: none;
  padding: 4px 26px 4px 11px;
  border: 0;
  border-radius: 999px;
  background: none;
  box-shadow: inset 0 0 0 1px var(--rule);
  color: var(--muted);
  font: inherit;
  font-size: 11.5px;
  line-height: 1.6;
  cursor: pointer;
}

.rank-select:hover { color: var(--ink); }

.rank-select option { background: var(--paper); color: var(--ink); }

.group {
  margin: 26px 0 0;
  padding-bottom: 6px;
  border-bottom: 1px solid var(--rule);
  font-family: var(--serif);
  font-size: 12.8px;
  font-weight: 600;
  line-height: 1.6;
  letter-spacing: .06em;
}

.pub-bar + .group { margin-top: 0; }

.pubs {
  margin: 0;
  padding: 0;
  list-style: none;
  font-size: 14px;
}

.pubs li {
  display: grid;
  grid-template-columns: 30px minmax(0, 1fr);
  padding: 10px 0 12px;
  line-height: 1.72;
}

.pubs li[hidden] { display: none; }

.pubs li > * { grid-column: 2; }

.pubs li::before {
  content: "[" attr(data-num) "]";
  padding-top: 3px;
  font-size: 11.5px;
  color: var(--faint);
  font-variant-numeric: tabular-nums;
}

.pub-title {
  margin: 0;
  font-family: var(--serif);
  font-size: 15px;
  font-weight: 600;
  line-height: 1.62;
}

.pub-authors {
  margin: 3px 0 0;
  font-size: 13.2px;
  line-height: 1.65;
  color: var(--muted);
}

.me {
  color: var(--ink);
  font-weight: 600;
  text-decoration: underline;
  text-underline-offset: 2px;
  text-decoration-thickness: 1px;
}

.pub-authors strong,
.pub-authors b { color: var(--ink); font-weight: 600; }

.pub-venue {
  margin: 2px 0 0;
  font-size: 12.8px;
  line-height: 1.65;
  letter-spacing: .01em;
  color: var(--faint);
}

.pub-venue em { font-style: italic; }

.pub-tag {
  display: inline-block;
  margin-right: 7px;
  padding: 1px 6px;
  border-radius: 3px;
  background: var(--tag-bg);
  color: var(--muted);
  font-family: var(--mono);
  font-size: 10.5px;
  letter-spacing: .02em;
}

.pub-extra {
  margin: 3px 0 0;
  font-size: 12.2px;
  line-height: 1.6;
  color: var(--faint);
}

.pub-extra a { color: var(--link); }

/* ---------- Service ---------- */
.service-cols {
  display: flex;
  align-items: flex-start;
  gap: 30px;
}

.service-cols > div {
  flex: 1 1 max-content;
  min-width: 0;
}

.service-cols h3 {
  margin: 0 0 7px;
  font-family: var(--serif);
  font-size: 12.8px;
  font-weight: 600;
  line-height: 1.6;
  letter-spacing: .05em;
}

.service-cols ul {
  margin: 0;
  padding-left: 1.1em;
  font-size: 13.5px;
  line-height: 1.8;
  color: var(--muted);
}

.service-cols li { list-style: disc; }
.service-cols li + li { margin-top: 2px; }
.service-cols strong { color: var(--ink); font-weight: 600; }

/* ---------- People (members) ---------- */
.people {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(210px, 1fr));
  gap: 2px 24px;
  margin: 4px 0 14px;
  padding: 0;
  list-style: none;
  font-size: 13.8px;
  line-height: 1.75;
}

.people li {
  display: block;
  padding: 7px 0 6px;
  border-bottom: 1px dashed var(--rule-soft);
}

.people .name {
  display: block;
  font-weight: 600;
  color: var(--ink);
  line-height: 1.5;
}

.people .note {
  display: block;
  margin: 1px 0 0;
  font-size: 12.2px;
  line-height: 1.6;
  color: var(--faint);
}

/* ---------- Awards (honors) ---------- */
.awards {
  margin: 0;
  padding: 0;
  list-style: none;
  counter-reset: award;
}

.awards li {
  position: relative;
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 6px 18px;
  padding: 9px 0 10px 30px;
  border-top: 1px solid var(--rule-soft);
  font-size: 14px;
  line-height: 1.72;
  counter-increment: award;
}

.awards li:first-child { border-top: 0; }

.awards li::before {
  position: absolute;
  left: 0;
  top: 11px;
  content: "[" counter(award) "]";
  font-size: 11.5px;
  color: var(--faint);
  font-variant-numeric: tabular-nums;
}

.award-text { min-width: 0; }

.award-year {
  flex: 0 0 auto;
  margin-left: auto;
  font-size: 12.3px;
  color: var(--faint);
  font-variant-numeric: tabular-nums;
  white-space: nowrap;
}

/* ---------- Gallery ---------- */
.gallery {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 14px;
  margin: 6px 0 8px;
}

.gallery figure { margin: 0; }

.gallery img {
  width: 100%;
  height: 170px;
  object-fit: cover;
  border-radius: 6px;
  border: 1px solid var(--rule-soft);
  cursor: zoom-in;
  transition: opacity .18s ease;
}

.gallery img:hover { opacity: .88; }

.gallery figcaption {
  margin-top: 5px;
  font-size: 11.5px;
  line-height: 1.5;
  color: var(--faint);
}

.lightbox {
  position: fixed;
  inset: 0;
  z-index: 90;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 40px;
  background: rgba(12, 14, 17, .9);
  cursor: zoom-out;
}

.lightbox.open { display: flex; }

.lightbox img {
  max-width: min(1100px, 92vw);
  max-height: 88vh;
  width: auto;
  border-radius: 4px;
}

/* ---------- Prose (legacy content) ---------- */
.prose { font-size: 14.6px; }

.prose > :first-child { margin-top: 0; }

.prose h1,
.prose h2 {
  margin: 40px 0 15px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--rule);
  font-family: var(--serif);
  font-size: 1.15rem;
  font-weight: 600;
  line-height: 1.5;
  letter-spacing: .04em;
  scroll-margin-top: 56px;
}

.prose > h1:first-child,
.prose > h2:first-child { margin-top: 0; }

.prose h3 {
  margin: 26px 0 10px;
  font-family: var(--serif);
  font-size: 14.6px;
  font-weight: 600;
  line-height: 1.6;
  letter-spacing: .03em;
  scroll-margin-top: 56px;
}

.prose h4 {
  margin: 20px 0 8px;
  font-size: 13.6px;
  font-weight: 600;
}

.prose p { margin: 0 0 11px; line-height: 1.8; }

.prose ul,
.prose ol {
  margin: 0 0 14px;
  padding-left: 1.35em;
}

.prose li { margin-bottom: 6px; line-height: 1.78; }
.prose li > p { margin: 0 0 4px; }
.prose li > p:last-child { margin-bottom: 0; }

.prose ol.biblist {
  list-style: none;
  margin: 0;
  padding: 0;
  counter-reset: bib;
  font-size: 13.8px;
}

.prose ol.biblist > li {
  position: relative;
  padding: 6px 0 8px 30px;
  counter-increment: bib;
}

.prose ol.biblist > li::before {
  position: absolute;
  left: 0;
  top: 8px;
  content: "[" counter(bib) "]";
  font-size: 11.5px;
  color: var(--faint);
  font-variant-numeric: tabular-nums;
}

.prose dl { margin: 0 0 14px; }

.prose dt {
  margin-bottom: 3px;
  font-weight: 600;
  line-height: 1.7;
}

.prose dd {
  margin: 0 0 12px;
  color: var(--muted);
  line-height: 1.8;
}

.prose blockquote {
  margin: 0 0 14px;
  padding: 2px 0 2px 14px;
  border-left: 2px solid var(--rule);
  color: var(--muted);
}

.prose hr {
  margin: 24px 0;
  border: 0;
  border-top: 1px solid var(--rule);
}

.prose table {
  width: 100%;
  margin: 0 0 16px;
  border-collapse: collapse;
  font-size: 13.4px;
  line-height: 1.7;
}

.prose th,
.prose td {
  padding: 7px 10px;
  border-bottom: 1px solid var(--rule-soft);
  text-align: left;
  vertical-align: top;
}

.prose th {
  font-weight: 600;
  color: var(--ink);
  border-bottom-color: var(--rule);
}

.prose table p { margin: 0; }

.prose img {
  height: auto;
  margin: 8px 0;
  border-radius: 6px;
}

.prose a { color: var(--link); }

.prose strong,
.prose b { color: var(--ink); font-weight: 600; }

.prose code,
.prose kbd {
  padding: 1px 5px;
  border-radius: 3px;
  background: var(--tag-bg);
  font-family: var(--mono);
  font-size: .92em;
}

.prose .STYLE1 { color: var(--rose); }

.prose input[type="text"] {
  padding: 6px 10px;
  border: 1px solid var(--rule);
  border-radius: 4px;
  background: var(--paper);
  color: var(--ink);
  font: inherit;
  font-size: 13.5px;
}

.prose table.qs_table {
  font-size: 12.8px;
  border-spacing: 0 3px;
  table-layout: fixed;
}

.prose table.qs_table th:nth-child(1) { width: 15%; }
.prose table.qs_table th:nth-child(2) { width: 38%; }
.prose table.qs_table th:nth-child(3) { width: 7%; }
.prose table.qs_table th:nth-child(4) { width: 26%; }
.prose table.qs_table th:nth-child(5) { width: 8%; }
.prose table.qs_table th:nth-child(6) { width: 6%; }

.prose form#quicksearch {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px 14px;
  margin: 0 0 16px;
  padding: 10px 14px;
  border: 1px solid var(--rule);
  border-radius: 8px;
  background: var(--rule-soft);
}

.prose #qs_field {
  flex: 1 1 240px;
  min-width: 180px;
  padding: 7px 13px;
  border: 1px solid var(--rule);
  border-radius: 999px;
  background: var(--paper);
  color: var(--ink);
  font: inherit;
  font-size: 13.5px;
}

.prose #qs_clear {
  padding: 7px 14px;
  border: 0;
  border-radius: 999px;
  box-shadow: inset 0 0 0 1px var(--rule);
  background: none;
  color: var(--muted);
  font: inherit;
  font-size: 12.5px;
  cursor: pointer;
}

.prose #qs_clear:hover { color: var(--ink); }

.prose #searchstat {
  font-size: 12.5px;
  color: var(--faint);
  font-variant-numeric: tabular-nums;
}

.prose #searchstat b { color: var(--ink); font-weight: 600; }

.prose .qs_table .infolinks {
  margin: 4px 0 0;
  font-size: 11.5px;
  color: var(--faint);
}

.prose table.qs_table td,
.prose table.qs_table th {
  border: 1px solid var(--rule-soft);
  padding: 8px 10px;
}

.prose table.qs_table th { background: var(--rule-soft); }

.prose table.qs_table tr:hover td { background: var(--rule-soft); }

.prose table.qs_table tr.bibtex td,
.prose table.qs_table tr.abstract td,
.prose table.qs_table tr.review td { background: var(--rule-soft); }

.prose table.qs_table tr.highlight td {
  background: var(--tag-bg);
  font-weight: 600;
}

.prose table.qs_table td a { color: var(--link); }

.prose table.qs_table pre {
  margin: 0;
  font-family: var(--mono);
  font-size: 11.8px;
  line-height: 1.6;
  white-space: pre-wrap;
  color: var(--muted);
}

.prose .level {
  margin: 16px 0 2px;
  font-size: 12.5px;
  letter-spacing: .06em;
  color: var(--faint);
}

.prose .hidden { display: none; }

/* ---------- Footer ---------- */
.site-footer {
  border-top: 1px solid var(--rule);
  padding: 16px 0 42px;
}

.footer-inner {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 6px 24px;
  font-size: 12px;
  letter-spacing: .02em;
  color: var(--faint);
}

.footer-inner p { margin: 0; }

.footer-inner a { color: var(--faint); text-decoration: underline; text-underline-offset: 2px; }

/* ---------- Responsive ---------- */
@media (max-width: 991.98px) {
  .layout {
    grid-template-columns: minmax(0, 1fr);
    padding-top: 28px;
  }

  .sidebar {
    position: static;
    grid-template-columns: minmax(0, 1fr) 96px;
    column-gap: 20px;
    margin-bottom: 30px;
    padding-bottom: 24px;
    border-bottom: 1px solid var(--rule);
  }

  .portrait {
    grid-column: 2;
    grid-row: 1;
    width: 96px;
    align-self: start;
  }

  .identity {
    grid-column: 1;
    grid-row: 1;
    align-self: start;
  }

  .latin { margin-top: 4px; }

  .metrics { margin-top: 18px; }

  .side-contact {
    display: flex;
    flex-wrap: wrap;
    gap: 2px 18px;
    margin-top: 14px;
    line-height: 1.9;
  }

  .side-contact li { display: flex; }

  .side-block,
  .side-meta,
  .side-card { margin-top: 20px; }

  .content-nav {
    gap: 4px 16px;
    font-size: 12px;
  }

  .lede { font-size: 14px; margin-bottom: 26px; }
  .section { margin-bottom: 30px; }

  .interest {
    grid-template-columns: minmax(max-content, 130px) minmax(0, 1fr);
    gap: 12px;
  }

  .row {
    grid-template-columns: 104px minmax(0, 1fr);
    gap: 14px;
  }

  .advisor { margin-left: 0; text-align: left; }

  .service-cols { flex-direction: column; gap: 22px; }
  .service-cols > div { width: 100%; }

  .gallery img { height: 150px; }
}

@media (max-width: 767.98px) {
  .container { width: calc(100% - 48px); }

  .interest { grid-template-columns: 1fr; gap: 0; }
  .interest dd { text-align: left; }
  .interest + .interest { margin-top: 12px; }

  .topbar-inner {
    flex-wrap: wrap;
    gap: 2px 14px;
    padding: 8px 0;
  }

  .brand-en { display: none; }

  .content-nav {
    order: 3;
    width: 100%;
    margin-left: 0;
    gap: 3px 14px;
  }

  .controls { margin-left: auto; }
}

@media (max-width: 460px) {
  .container { width: calc(100% - 36px); }

  .sidebar {
    grid-template-columns: minmax(0, 1fr) 82px;
    column-gap: 16px;
    margin-bottom: 24px;
  }

  .portrait { width: 82px; }
  .identity h1,
  .identity-name { font-size: 1.55rem; }
  .identity .role { font-size: 12px; }
  .side-contact { font-size: 12.5px; }

  .section h2,
  .prose h2 { font-size: 1.05rem; }
  .page-title { font-size: 1.3rem; }

  .interest { grid-template-columns: 1fr; gap: 0; }
  .interest dd { text-align: left; }
  .interest dt { margin-bottom: 1px; }

  .row { grid-template-columns: 1fr; gap: 1px; padding: 10px 0; }
  .when { padding-top: 0; font-size: 11.5px; }

  .pubs li { grid-template-columns: 26px minmax(0, 1fr); }

  .people { grid-template-columns: 1fr; }
  .gallery { grid-template-columns: repeat(auto-fill, minmax(140px, 1fr)); gap: 10px; }
  .gallery img { height: 110px; }

  .footer-inner { flex-direction: column; align-items: flex-start; }
}

/* ---------- Reduced motion ---------- */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .theme-switch-thumb,
  .theme-option,
  .gallery img,
  .skip-link { transition: none; }
}

/* ---------- Print ---------- */
@media print {
  @page { size: A4 portrait; margin: 16mm 18mm; }

  .topbar,
  .site-footer,
  .controls,
  .pub-switches,
  .lightbox,
  .skip-link { display: none !important; }

  html, body { background: #fff; color: #000; }

  body { font-size: 10pt; line-height: 1.45; }

  .container { width: auto; max-width: none; }

  .layout {
    display: block;
    padding: 0;
  }

  .sidebar {
    position: static;
    display: flex;
    align-items: center;
    gap: 12pt;
    margin-bottom: 10pt;
    padding-bottom: 8pt;
    border-bottom: .8pt solid #1c4c78;
  }

  .portrait { width: 62pt; height: 76pt; aspect-ratio: auto; }
  .identity h1 { font-size: 16pt; color: #1c4c78; }
  .metrics { display: none; }
  .side-contact { display: flex; gap: 10pt; margin: 0; font-size: 8pt; }
  .side-block, .side-card, .side-meta { display: none; }

  .content { width: auto; }
  .lede, .prose, .section-body { font-size: 9pt; }
  .section h2, .prose h2 { break-after: avoid; font-size: 10.5pt; }
  .row, .pubs li, .awards li { break-inside: avoid; }
  a { color: #000; text-decoration: none; }
}