:root {
  color-scheme: light;
  --bg: #ffffff;
  --ink: #172b4d;
  --muted: #566780;
  --blue: #245dcc;
  --navy: #173b78;
  --soft: #f1f5fd;
  --line: #dce4f2;
}
:root[data-theme="dark"] {
  color-scheme: dark;
  --bg: #101b2e;
  --ink: #e8efff;
  --muted: #abbcd7;
  --blue: #8bb4ff;
  --navy: #bdd3ff;
  --soft: #192941;
  --line: #30445f;
}
* { box-sizing: border-box; }
body { margin: 0; min-height: 100vh; display: flex; flex-direction: column; background: var(--bg); color: var(--ink); font: 1rem/1.75 system-ui, -apple-system, "Segoe UI", sans-serif; }
a { color: var(--blue); text-underline-offset: .25em; }
a:hover { text-decoration-thickness: 2px; }
a:focus-visible, button:focus-visible { outline: 3px solid var(--blue); outline-offset: 5px; }
button { font: inherit; }
img { max-width: 100%; height: auto; }
.wrap { width: min(1080px, calc(100% - 64px)); margin-inline: auto; }
.skip-link { position: absolute; left: 1rem; top: -100px; padding: .6rem 1rem; background: var(--bg); z-index: 5; }
.skip-link:focus { top: 1rem; }
.site-header { border-top: 5px solid #245dcc; border-bottom: 1px solid var(--line); }
.header-inner { display: flex; align-items: center; flex-wrap: wrap; gap: 12px 30px; padding-block: 22px; }
.brand { color: var(--navy); text-decoration: none; font-size: 1.2rem; font-weight: 750; margin-right: auto; }
.navigation { display: flex; gap: 8px 24px; flex-wrap: wrap; }
.navigation a { color: var(--muted); padding-block: 8px; text-decoration: none; font-size: .9375rem; border-bottom: 2px solid transparent; }
.navigation a:hover, .navigation a[aria-current="page"] { color: var(--blue); border-bottom-color: var(--blue); }
.navigation a[aria-current="page"] { font-weight: 650; }
.theme-button { background: var(--soft); border: 1px solid var(--line); color: var(--ink); border-radius: 5px; min-height: 44px; padding: 6px 12px; cursor: pointer; font-size: .875rem; }
.header-controls { display: flex; flex-wrap: wrap; align-items: center; gap: 10px; }
.language-switch { display: inline-flex; align-items: center; min-height: 44px; font-size: .875rem; padding: 6px 8px; white-space: nowrap; }
.header-inner { gap: 12px 20px; }
.navigation { gap: 8px 18px; }
.highlight-card { --card-bg: #edf4ff; --card-accent: #4b70b8; border: 1px solid var(--line); border-left: 3px solid var(--card-accent); border-radius: 10px; padding: 26px; background: var(--card-bg); min-width: 0; }
.highlight-card[data-tone="2"] { --card-bg: #e8f3fa; --card-accent: #397a9d; }
.highlight-card[data-tone="3"] { --card-bg: #eef0fc; --card-accent: #666eba; }
.highlight-card[data-tone="4"] { --card-bg: #e8f0fb; --card-accent: #407cbb; }
.highlight-card[data-tone="5"] { --card-bg: #eef3f8; --card-accent: #547c9a; }
:root[data-theme="dark"] .highlight-card { --card-bg: #1b2d47; --card-accent: #8aacf0; }
:root[data-theme="dark"] .highlight-card[data-tone="2"] { --card-bg: #172e40; --card-accent: #80b7d7; }
:root[data-theme="dark"] .highlight-card[data-tone="3"] { --card-bg: #252b49; --card-accent: #a3adf0; }
:root[data-theme="dark"] .highlight-card[data-tone="4"] { --card-bg: #192f4c; --card-accent: #82b1ec; }
:root[data-theme="dark"] .highlight-card[data-tone="5"] { --card-bg: #223040; --card-accent: #9dbad5; }
.highlight-list { display: grid; gap: 24px; }
.highlight-card--row { display: grid; grid-template-columns: minmax(0, 1.55fr) minmax(0, 1fr); gap: 30px; align-items: center; }
.highlight-copy { display: flex; flex-direction: column; min-width: 0; }
.highlight-card h2, .highlight-card h3 { font-size: 1.25rem; line-height: 1.5; margin: 0 0 16px; text-wrap: pretty; }
.highlight-card p { color: var(--muted); }
.highlight-card .highlight-overview p { max-width: none; text-align: justify; text-align-last: left; text-wrap: pretty; }
.highlight-card .highlight-overview p:last-child { margin-bottom: 0; }
.highlight-read { align-self: flex-start; padding-top: 18px; font-size: .9375rem; }
.highlight-image { display: flex; align-items: center; justify-content: center; aspect-ratio: 3 / 2; min-width: 0; padding: 12px; background: #fff; border: 1px solid var(--line); border-radius: 7px; }
.highlight-image img { display: block; width: 100%; height: 100%; object-fit: contain; }
.highlight-image:hover { border-color: var(--card-accent); }
.highlight-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 24px; }
.highlight-grid .highlight-card { display: flex; flex-direction: column; gap: 22px; padding: 22px; }
.highlight-grid .highlight-image { aspect-ratio: 2 / 1; flex: none; }
.highlight-grid .highlight-copy { flex: 1; }
.highlight-grid .highlight-read { margin-top: auto; }
.research-keywords { display: flex; flex-wrap: wrap; gap: 10px; list-style: none; padding: 0; margin: 24px 0 0; }
.research-keywords li { padding: 5px 13px; color: var(--blue); background: var(--soft); border-radius: 4px; font-size: .9375rem; }
.highlight-card h2 a, .highlight-card h3 a { color: var(--navy); text-decoration: none; }
.highlight-card h2 a:hover, .highlight-card h3 a:hover { text-decoration: underline; }
.article-meta { color: var(--muted); font-size: .875rem; margin-bottom: 10px; }
.article-body { max-width: 720px; margin-inline: auto; overflow-wrap: anywhere; font-family: "Times New Roman", "Microsoft YaHei", "PingFang SC", serif; font-size: 1.0625rem; line-height: 1.85; text-align: left; }
.article-body .page-heading { margin-bottom: 32px; }
.article-body h1 { font-size: clamp(2rem, 4vw, 2.625rem); line-height: 1.35; }
.article-body h1, html[lang="zh-CN"] .article-body h1 { font-family: inherit; }
.article-body h2 { font-size: 1.375rem; margin-bottom: 20px; }
.article-body p { margin-bottom: 22px; }
.article-body section p { text-align: justify; text-align-last: left; }
.article-body .page-heading p { margin-bottom: 10px; }
.article-body .page-heading p:last-child { margin-bottom: 0; }
.article-body section { margin-top: 46px; }
.article-body .article-overview { margin: 0 0 46px; padding: 26px 30px; background: var(--soft); border-left: 3px solid var(--blue); border-radius: 6px; }
.article-body .article-overview h2 { color: var(--blue); font-size: 1.125rem; margin-bottom: 14px; }
.article-body .article-overview p:last-child { margin-bottom: 0; }
.article-figure { width: min(100%, 620px); margin: 32px auto 38px; }
.article-figure--portrait { width: min(100%, 500px); }
.article-figure a { display: block; background: white; border: 1px solid var(--line); border-radius: 6px; padding: 10px; cursor: zoom-in; }
.article-figure img { display: block; width: 100%; height: auto; }
.article-figure figcaption { color: var(--muted); font-size: .875rem; line-height: 1.7; margin-top: 12px; padding-inline: 8px; text-align: center; text-wrap: balance; }
.article-reference { margin-top: 40px; padding-top: 22px; border-top: 1px solid var(--line); color: var(--muted); font-size: .875rem; }
.article-body .article-reference p { margin-bottom: 10px; }
.article-body .article-reference p:last-child { margin-bottom: 0; }
.reading-meta { color: var(--muted); font-size: .875rem; margin-top: 12px; font-variant-numeric: tabular-nums; }
.article-body .article-story { margin-top: 36px; padding: 26px 30px; background: var(--soft); border-top: 3px solid var(--blue); border-radius: 6px; }
.article-body .article-story h2 { color: var(--blue); font-size: 1.25rem; margin-bottom: 14px; }
.article-body .article-story p:last-child { margin-bottom: 0; }
.back-link { display: inline-block; margin-bottom: 26px; }
.article-editor { position: sticky; top: 0; z-index: 3; max-width: 720px; margin: 0 auto 26px; padding: 14px 18px; background: var(--bg); border: 1px solid var(--line); border-radius: 6px; box-shadow: 0 3px 12px #172b4d0a; }
.editor-actions { display: flex; flex-wrap: wrap; gap: 8px; }
.editor-actions .button { background: var(--soft); color: var(--blue); cursor: pointer; }
.editor-actions .button:disabled { opacity: .6; cursor: wait; }
.editor-help, .editor-status { margin: 10px 0 0; font-size: .8125rem; line-height: 1.65; color: var(--muted); }
.editor-status:empty { display: none; }
.is-editing [data-article-editable] { outline: 1px dashed var(--line); outline-offset: 4px; cursor: text; white-space: pre-wrap; scroll-margin-block: 190px 40px; }
.is-editing [data-article-editable]:focus { outline: 2px solid var(--blue); background: var(--soft); }
html[lang="zh-CN"] body { font-family: system-ui, "Microsoft YaHei", "PingFang SC", sans-serif; line-height: 1.9; }
html[lang="zh-CN"] h1 { font-family: "Songti SC", SimSun, serif; line-height: 1.4; letter-spacing: 0; }
html[lang="zh-CN"] .eyebrow { letter-spacing: .06em; }
html[lang="zh-CN"] .article-body { font-family: "Times New Roman", "Microsoft YaHei", "PingFang SC", sans-serif; line-height: 1.95; line-break: strict; overflow-wrap: normal; }
html[lang="zh-CN"] .article-body section p { text-wrap: pretty; }
[hidden] { display: none !important; }
main { flex: 1; padding-block: 54px 70px; }
h1, h2, h3 { color: var(--navy); line-height: 1.25; }
h1 { font: 500 clamp(2.5rem, 5vw, 3.5rem)/1.15 Georgia, "Times New Roman", serif; margin: 10px 0 18px; letter-spacing: -.025em; }
h2 { font-size: 1.5rem; font-weight: 650; margin: 0 0 18px; }
h3 { font-size: 1.125rem; margin: 0 0 8px; font-weight: 650; }
p { margin: 0 0 18px; }
.eyebrow { color: var(--blue); text-transform: uppercase; font-size: .8125rem; font-weight: 700; letter-spacing: .12em; margin-bottom: 10px; }
.muted, .affiliation { color: var(--muted); }
.affiliation { margin-bottom: 22px; }
.profile { display: grid; grid-template-columns: 180px minmax(0, 1fr); gap: 48px; align-items: start; }
.portrait { aspect-ratio: 1; background: var(--soft); border: 1px solid var(--line); display: flex; flex-direction: column; justify-content: center; align-items: center; color: var(--blue); border-radius: 4px; }
.portrait span { font: 500 3.6rem/1.2 Georgia, serif; }
.portrait small { margin-top: 12px; color: var(--muted); font-size: .875rem; }
.profile-contact { display: flex; align-items: center; justify-content: space-between; gap: 8px; max-width: 180px; margin-top: 15px; }
.profile-aside .profile-contact p { margin: 0; }
.profile-email { display: flex; align-items: center; justify-content: center; width: 36px; height: 44px; flex: 0 0 36px; border-radius: 6px; color: var(--blue); background: var(--soft); }
.profile-email:hover { box-shadow: inset 0 0 0 1px var(--blue); }
.profile-photo { display: block; width: 100%; max-width: 180px; height: auto; border-radius: 4px; border: 1px solid var(--line); }
.publication { padding: 25px 0; border-bottom: 1px solid var(--line); overflow-wrap: anywhere; }
.publication:first-child { padding-top: 0; }
.publication h2, .publication h3 { line-height: 1.45; margin-bottom: 10px; }
.publication h2 { font-size: 1.2rem; }
.publication h2 a, .publication h3 a { text-decoration: none; color: var(--navy); }
.publication h2 a:hover, .publication h3 a:hover { text-decoration: underline; }
.publication p { margin-bottom: 6px; }
.paper-link { display: inline-block; margin-top: 6px; font-size: .875rem; }
.publication .publication-highlight { margin: 12px 0 0; }
.publication-highlight a { display: inline-flex; gap: 10px; align-items: center; padding: 5px 12px; background: var(--soft); border: 1px solid var(--line); border-radius: 5px; font-size: .875rem; text-decoration: none; }
.publication-highlight a:hover { border-color: var(--blue); text-decoration: underline; }
.publications-top { display: grid; grid-template-columns: minmax(0, 1fr) 330px; gap: 48px; align-items: start; }
.publications-intro { min-width: 0; }
.scholar-card { padding: 25px 24px 23px; border: 1px solid var(--line); border-radius: 10px; background: var(--soft); }
.scholar-card .eyebrow { font-size: .75rem; margin-bottom: 6px; }
.scholar-card h2 { margin-bottom: 20px; font-size: 1.5rem; }
.scholar-metrics { width: 100%; border-collapse: collapse; font-size: .875rem; font-variant-numeric: tabular-nums; }
.scholar-metrics th, .scholar-metrics td { padding: 6px 0; text-align: right; }
.scholar-metrics thead th { color: var(--muted); font-size: .75rem; font-weight: 400; border-bottom: 1px solid var(--line); padding-bottom: 9px; white-space: nowrap; }
.scholar-metrics tbody th { text-align: left; font-weight: 400; }
.scholar-metrics td { color: var(--navy); }
.scholar-metrics tbody tr:first-child th, .scholar-metrics tbody tr:first-child td { padding-top: 12px; font-weight: 600; }
.citation-chart { display: block; width: 100%; height: auto; margin-top: 20px; overflow: visible; font-family: inherit; }
.citation-grid { stroke: var(--line); stroke-width: 1; }
.citation-axis { fill: var(--muted); font-size: 11px; }
.citation-value { fill: var(--blue); font-size: 10px; }
.citation-bar { fill: var(--blue); opacity: .8; }
.citation-bar:hover { opacity: 1; }
.scholar-card .scholar-updated { color: var(--muted); font-size: .75rem; margin: 4px 0 8px; }
.scholar-profile { font-size: .8125rem; }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip-path: inset(50%); white-space: nowrap; border: 0; }
@media (max-width: 860px) {
  .publications-top { grid-template-columns: minmax(0, 1fr); gap: 30px; }
  .scholar-card { width: 100%; max-width: 440px; }
}
.manuscript-status { display: inline-block; color: var(--blue); background: var(--soft); border: 1px solid var(--line); border-radius: 4px; padding: 3px 10px; margin-bottom: 6px; font-size: .875rem; font-weight: 600; }
.details dd strong { color: var(--ink); }
.profile-aside p { margin-top: 15px; font-size: .875rem; color: var(--muted); }
.intro { max-width: 68ch; font-size: 1.0625rem; }
.actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 26px; }
.button { display: inline-flex; align-items: center; min-height: 44px; padding: 8px 18px; border: 1px solid var(--line); border-radius: 4px; font-size: .9375rem; text-decoration: none; font-weight: 600; }
.button.primary { background: #245dcc; color: #fff; border-color: #245dcc; }
.button:hover { box-shadow: 0 0 0 1px var(--blue); }
.section { margin-top: 44px; padding-top: 30px; border-top: 1px solid var(--line); }
.section-heading { display: flex; flex-wrap: wrap; align-items: baseline; justify-content: space-between; gap: 8px 24px; margin-bottom: 16px; }
.section-heading h2 { margin: 0; }
.section-heading a { font-size: .9375rem; }
.topic-links { list-style: none; padding: 0; margin: 0; display: grid; grid-template-columns: 1fr 1fr; gap: 0 32px; }
.topic-links li { border-bottom: 1px solid var(--line); }
.topic-links a { display: flex; align-items: baseline; gap: 16px; padding: 13px 0; text-decoration: none; }
.topic-links a:hover { text-decoration: underline; }
.topic-links span { font-size: .8125rem; color: var(--muted); font-variant-numeric: tabular-nums; }
.page-heading { margin-bottom: 34px; max-width: 740px; }
.page-heading p:last-child { color: var(--muted); margin-bottom: 0; }
.research-list { border-top: 1px solid var(--line); }
.research-item { display: grid; grid-template-columns: 48px 1fr; gap: 20px; padding: 27px 0; border-bottom: 1px solid var(--line); }
.research-item .number { color: var(--blue); font-size: .875rem; padding-top: 3px; }
.research-item p { max-width: 75ch; color: var(--muted); margin: 0; }
.questions { padding-left: 22px; margin: 0; }
.questions li { padding: 7px 0 7px 6px; }
.notice { border-left: 3px solid var(--blue); background: var(--soft); padding: 22px 26px; }
.notice p:last-child { margin-bottom: 0; }
.details { margin: 0; }
.details > div { display: grid; grid-template-columns: 200px 1fr; gap: 24px; padding: 22px 0; border-bottom: 1px solid var(--line); }
.details dt { font-weight: 600; color: var(--navy); }
.details dd { margin: 0; color: var(--muted); overflow-wrap: anywhere; }
.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 64px; }
.contact-grid .details > div { grid-template-columns: 1fr 1fr; gap: 20px; padding-top: 16px; padding-bottom: 16px; }
.site-footer { border-top: 1px solid var(--line); font-size: .875rem; color: var(--muted); }
.footer-inner { display: flex; justify-content: flex-end; padding-block: 24px; text-align: right; }
@media (max-width: 1040px) {
  .header-inner { gap: 12px; }
  .navigation { order: 3; width: 100%; gap: 6px 24px; }
  .profile { grid-template-columns: 160px minmax(0, 1fr); gap: 28px; }
  .contact-grid { grid-template-columns: 1fr; gap: 20px; }
}
@media (max-width: 560px) {
  .wrap { width: calc(100% - 36px); }
  main { padding-block: 30px 44px; }
  .header-inner { padding-block: 15px 8px; }
  .navigation { justify-content: flex-start; gap: 4px 20px; }
  .navigation a { min-height: 44px; }
  .profile { grid-template-columns: 1fr; gap: 24px; }
  .profile-aside { display: flex; gap: 20px; align-items: center; }
  .portrait { width: 112px; flex: 0 0 112px; }
  .profile-photo { width: 104px; flex: 0 0 104px; }
  .profile-contact { margin-top: 0; max-width: none; }
  .portrait span { font-size: 2.6rem; }
  .portrait small { margin-top: 5px; }
  .profile-aside p { margin: 0; }
  .topic-links { grid-template-columns: 1fr; }
  .section { margin-top: 32px; padding-top: 24px; }
  .research-item { grid-template-columns: 28px minmax(0, 1fr); gap: 12px; }
  .details > div, .contact-grid .details > div { grid-template-columns: 1fr; gap: 4px; }
  .notice { padding: 18px; }
  .article-body .article-overview, .article-body .article-story { padding: 20px; }
  .article-body { font-size: 1rem; }
  .article-body section { margin-top: 36px; }
  .article-figure { margin-block: 26px 30px; }
  .article-figure a { padding: 5px; }
}
@media (max-width: 740px) {
  .highlight-grid { grid-template-columns: 1fr; }
  .highlight-card--row { grid-template-columns: minmax(0, 1fr); gap: 22px; }
  .highlight-card { padding: 22px; }
  .highlight-card--row .highlight-image { width: 100%; max-width: 440px; justify-self: center; }
}
@media print {
  .article-editor { display: none !important; }
  .is-editing [data-article-editable] { outline: none; }
  .navigation, .theme-button, .skip-link { display: none !important; }
  :root[data-theme] { --bg: white; --ink: #172b4d; --muted: #566780; --navy: #173b78; --line: #dce4f2; --soft: #f1f5fd; --blue: #245dcc; }
  main { padding-block: 24px; }
}