.zhouke-shell {
  padding-top: var(--section-start);
  padding-bottom: clamp(var(--space-9), 10vw, var(--space-10));
}

.zhouke-people-back,
.zhouke-work-nav a {
  color: var(--blue-700);
  text-decoration: none;
  text-underline-offset: 3px;
}

.zhouke-people-back:focus-visible,
.zhouke-work-nav a:focus-visible,
.zhouke-profile-content a:focus-visible,
.work-article a:focus-visible {
  outline: 2px solid var(--blue-600);
  outline-offset: 3px;
  border-radius: 2px;
}

.zhouke-profile-layout {
  display: grid;
  grid-template-columns: minmax(190px, 240px) minmax(0, 780px);
  gap: clamp(var(--space-7), 7vw, var(--space-10));
  align-items: start;
  justify-content: center;
}

.zhouke-profile-rail {
  position: sticky;
  top: 104px;
}

.zhouke-profile-portrait {
  display: block;
  width: min(100%, 230px);
  aspect-ratio: 4 / 5;
  overflow: hidden;
  border-radius: var(--radius-card);
  background: var(--paper-200);
  box-shadow: var(--shadow-card);
}

.zhouke-profile-portrait img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center top;
}

.zhouke-profile-label {
  margin: var(--space-5) 0 var(--space-2);
  color: var(--blue-700);
  font: 600 .72rem/1.4 var(--sans);
  letter-spacing: .1em;
  text-transform: uppercase;
}

.zhouke-profile-rail h1 {
  margin: 0;
  color: var(--ink-950);
  font: 500 clamp(2.1rem, 4vw, 3rem)/1.04 var(--font-interface);
  letter-spacing: -.035em;
  text-wrap: balance;
}

.zhouke-profile-rail h1 span {
  display: block;
  margin-top: var(--space-2);
  color: var(--ink-500);
  font-size: .44em;
  font-weight: 500;
  letter-spacing: .01em;
}

.zhouke-profile-role {
  max-width: 18ch;
  margin: var(--space-4) 0 0;
  color: var(--ink-700);
  font: 400 .9rem/1.6 var(--sans);
}

.zhouke-people-back {
  display: inline-flex;
  min-height: 44px;
  gap: var(--space-2);
  align-items: center;
  margin-top: var(--space-5);
  font: 600 .78rem/1 var(--sans);
}

.zhouke-profile-content {
  min-width: 0;
  color: var(--ink-700);
  font-family: var(--font-reading);
  font-size: .9rem;
  line-height: 1.75;
  text-wrap: pretty;
}

.work-article {
  min-width: 0;
  color: var(--ink-700);
  font-family: var(--font-reading);
  font-size: 1.05rem;
  line-height: 1.82;
  text-wrap: pretty;
}

html[lang^="zh"] .zhouke-profile-content {
  font-family: var(--font-cjk);
}

.zhouke-profile-content > p:first-child {
  margin-top: 0;
  color: var(--ink-700);
  font-size: .94rem;
  line-height: 1.78;
}

.zhouke-profile-content p,
.work-article p {
  margin: 0 0 var(--space-5);
}

.zhouke-profile-content ul,
.zhouke-profile-content ol,
.reference-list {
  margin: 0 0 var(--space-5);
  padding-left: 1.35em;
}

.zhouke-profile-content li,
.reference-list li {
  margin-bottom: 7px;
  padding-left: 5px;
}

.zhouke-profile-content a,
.work-article a {
  color: var(--blue-700);
  text-decoration-color: rgba(36, 95, 145, .4);
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
  overflow-wrap: anywhere;
}

.zhouke-highlight {
  color: var(--blue-700);
}

.zhouke-profile-content > p > .zhouke-highlight:only-child {
  display: block;
  margin: var(--space-5) 0;
  padding-left: 18px;
  border-left: 2px solid var(--blue-600);
  color: #0868b2;
  font-weight: 600;
}

.recent-work {
  margin: clamp(42px, 5vw, 58px) 0;
  padding: clamp(18px, 3vw, 28px);
  background: var(--paper-100);
  border-radius: var(--radius-card);
}

.recent-work h2 {
  margin-top: 0;
}

.recent-work-list {
  border-bottom: 1px solid var(--line-strong);
}

.recent-work-item + .recent-work-item {
  border-top: 1px solid var(--line);
}

.recent-work-item a {
  position: relative;
  display: block;
  padding: var(--space-5) var(--space-7) var(--space-5) 0;
  color: var(--blue-700);
  font-weight: 500;
  line-height: 1.6;
  text-decoration: none;
  transition: color 150ms var(--ease-out), padding-left 180ms var(--ease-out);
}

.recent-work-item a::after {
  position: absolute;
  top: 50%;
  right: var(--space-2);
  color: var(--blue-600);
  content: "→";
  transform: translateY(-50%);
}

.zhouke-work-nav {
  display: flex;
  min-height: 44px;
  gap: var(--space-4);
  align-items: center;
  max-width: 900px;
  margin: 0 auto clamp(var(--space-6), 5vw, var(--space-8));
  color: var(--ink-500);
  font: 600 .78rem/1 var(--sans);
}

.zhouke-work-nav__rule {
  width: min(160px, 16vw);
  height: 1px;
  background: var(--line-strong);
}

.zhouke-work-nav a[aria-current="page"] {
  color: var(--ink-950);
  text-decoration: underline;
  text-decoration-color: var(--blue-600);
  text-decoration-thickness: 2px;
  text-underline-offset: 5px;
}

.work-article {
  max-width: 900px;
  margin: 0 auto;
  font-size: 1.08rem;
  line-height: 1.78;
}

.work-back {
  display: inline-flex;
  min-height: 44px;
  gap: var(--space-2);
  align-items: center;
  margin-bottom: var(--space-5);
  font: 600 .78rem/1 var(--sans);
  text-decoration: none;
}

.work-kicker {
  margin-bottom: var(--space-4);
  color: var(--blue-700);
  font: 600 .74rem/1.45 var(--sans);
  letter-spacing: .08em;
}

.work-title {
  max-width: 20ch;
  margin: 0 0 var(--space-5);
  color: var(--ink-950);
  font: 500 clamp(2.3rem, 6vw, 4.35rem)/1.08 var(--font-interface);
  letter-spacing: -.045em;
  text-wrap: balance;
}

.work-meta {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2) var(--space-6);
  margin-bottom: clamp(var(--space-7), 6vw, var(--space-8));
  padding-bottom: var(--space-5);
  border-bottom: 1px solid var(--line-strong);
  color: var(--ink-500);
  font: 500 .8rem/1.5 var(--sans);
  font-variant-numeric: tabular-nums;
}

.work-lead {
  margin-bottom: clamp(var(--space-7), 6vw, var(--space-8)) !important;
  padding: clamp(var(--space-5), 4vw, var(--space-6));
  border-radius: var(--radius-card);
  background: var(--paper-100);
  color: var(--ink-900);
  font-size: 1.13rem;
  line-height: 1.72;
}

.work-section-title,
.work-citation h2 {
  margin: clamp(var(--space-8), 8vw, var(--space-9)) 0 var(--space-4);
  color: var(--ink-950);
  font: 500 clamp(1.5rem, 3.5vw, 2.15rem)/1.25 var(--font-interface);
  letter-spacing: -.025em;
  text-wrap: balance;
}

.work-figure {
  margin: clamp(var(--space-7), 6vw, var(--space-8)) 0;
}

.work-figure--paper {
  max-width: 760px;
  margin-right: auto;
  margin-left: auto;
}

.work-figure img {
  display: block;
  width: 100%;
  height: auto;
  border: 1px solid var(--line);
  border-radius: var(--radius-control);
  background: var(--paper-100);
}

.work-figure a {
  display: block;
  border-radius: var(--radius-control);
}

.work-figure figcaption {
  max-width: 76ch;
  margin-top: var(--space-3);
  color: var(--ink-500);
  font: 400 .82rem/1.62 var(--font-cjk);
}

.math-display {
  max-width: 100%;
  overflow-x: auto;
  margin: var(--space-6) 0 var(--space-7);
  padding: var(--space-5);
  border: 1px solid var(--line);
  border-radius: var(--radius-control);
  background: var(--paper-100);
  color: var(--ink-950);
  text-align: center;
  -webkit-overflow-scrolling: touch;
}

.result-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: var(--space-3);
  margin: var(--space-6) 0 var(--space-8);
}

.result-card {
  padding: var(--space-5);
  border-radius: var(--radius-control);
  background: var(--paper-100);
}

.result-card strong,
.result-card span {
  display: block;
}

.result-card strong {
  margin-bottom: var(--space-2);
  color: var(--blue-700);
  font: 500 clamp(1.35rem, 3vw, 1.9rem)/1.15 var(--sans);
  font-variant-numeric: tabular-nums;
}

.result-card span {
  color: var(--ink-700);
  font-size: .84rem;
  line-height: 1.55;
}

.work-note {
  margin: var(--space-7) 0 !important;
  padding: var(--space-5) var(--space-6);
  border: 1px solid var(--line);
  border-radius: var(--radius-control);
  color: var(--ink-700);
  font-size: .96rem;
}

.work-citation {
  margin-top: clamp(var(--space-8), 9vw, var(--space-10));
  padding-top: var(--space-2);
  border-top: 1px solid var(--line-strong);
}

.work-citation h2 {
  margin-top: var(--space-6);
}

@media (hover: hover) and (pointer: fine) {
  .zhouke-breadcrumb a:hover,
  .zhouke-people-back:hover,
  .zhouke-work-nav a:hover,
  .zhouke-profile-content a:hover,
  .work-article a:hover {
    color: var(--blue-600);
  }

  .recent-work-item a:hover {
    padding-left: var(--space-2);
    color: var(--blue-700);
  }

  .work-figure a:hover img {
    border-color: var(--line-strong);
  }
}

@media (max-width: 760px) {
  .zhouke-profile-layout {
    grid-template-columns: 1fr;
    gap: var(--space-8);
  }

  .zhouke-profile-rail {
    position: static;
    display: grid;
    grid-template-columns: 160px minmax(0, 1fr);
    gap: 0 var(--space-5);
    align-items: end;
  }

  .zhouke-profile-portrait {
    grid-row: 1 / span 4;
    width: 160px;
  }

  .zhouke-profile-label {
    margin-top: 0;
  }

  .zhouke-profile-role {
    max-width: 24ch;
  }

  .zhouke-people-back {
    margin-top: var(--space-3);
  }

  .zhouke-profile-content {
    font-size: .88rem;
    line-height: 1.74;
  }

  .work-article {
    font-size: 1rem;
    line-height: 1.78;
  }

  .work-title {
    font-size: clamp(2rem, 9vw, 3rem);
    letter-spacing: -.035em;
  }

  .result-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 520px) {
  .zhouke-shell {
    padding-top: var(--space-6);
  }

  .zhouke-breadcrumb {
    margin-bottom: var(--space-7);
  }

  .zhouke-profile-rail {
    grid-template-columns: 118px minmax(0, 1fr);
    gap: 0 var(--space-4);
    align-items: start;
  }

  .zhouke-profile-portrait {
    width: 118px;
  }

  .zhouke-profile-rail h1 {
    font-size: 1.9rem;
  }

  .zhouke-profile-role {
    font-size: .82rem;
  }

  .zhouke-people-back {
    grid-column: 2;
  }

  .zhouke-work-nav {
    gap: var(--space-3);
    margin-bottom: var(--space-7);
  }

  .zhouke-work-nav__rule {
    flex: 1;
    min-width: var(--space-5);
  }

  .work-meta {
    display: grid;
    gap: var(--space-2);
  }

  .work-lead,
  .work-note {
    padding: var(--space-5);
  }

  .work-figure {
    margin: var(--space-7) 0;
  }

  .math-display {
    margin-right: calc(var(--content-gutter-mobile) * -1);
    margin-left: calc(var(--content-gutter-mobile) * -1);
    border-right: 0;
    border-left: 0;
    border-radius: 0;
  }
}

@media (prefers-reduced-motion: reduce) {
  .recent-work-item a {
    transition: none;
  }
}

@media print {
  .zhouke-breadcrumb,
  .zhouke-people-back,
  .zhouke-work-nav {
    display: none;
  }

  .zhouke-profile-layout {
    display: block;
  }

  .zhouke-profile-rail {
    position: static;
    margin-bottom: var(--space-7);
  }

  .work-figure,
  .work-section-title,
  .work-citation {
    break-inside: avoid;
  }
}

/* Legacy article composition, retained inside the current global site header. */
.zhouke-work-page {
  clear: both;
  max-width: 100%;
  overflow-x: hidden;
  padding: 42px 20px 68px;
  background: var(--paper-100);
}

.zhouke-work-page .work-article {
  max-width: 920px;
  margin: 0 auto;
  padding: 44px 58px 54px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: var(--paper-50);
  box-shadow: var(--shadow-soft);
  color: var(--ink-700);
  font-family: var(--font-cjk);
  font-size: 17px;
  line-height: 1.9;
}

.zhouke-work-page .work-back {
  display: inline-flex;
  min-height: auto;
  align-items: center;
  margin-bottom: 24px;
  color: var(--blue-700);
  font: 600 15px/1.4 var(--font-cjk);
}

.zhouke-work-page .work-kicker {
  margin-bottom: 12px;
  color: var(--blue-700);
  font: 700 14px/1.45 var(--font-cjk);
  letter-spacing: .08em;
  text-transform: uppercase;
}

.zhouke-work-page .work-title {
  max-width: none;
  margin: 0;
  color: var(--ink-950);
  font: 700 36px/1.45 var(--font-cjk);
  letter-spacing: 0;
  text-wrap: wrap;
}

.zhouke-work-page .work-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 18px;
  margin: 18px 0 30px;
  padding: 0;
  border: 0;
  color: var(--ink-500);
  font: 400 14px/1.5 var(--font-cjk);
}

.zhouke-work-page .work-lead,
.zhouke-work-page .work-article p {
  margin: 0 0 20px;
  font-family: var(--font-cjk);
  font-size: 17px;
  line-height: 1.9;
  text-align: justify;
}

.zhouke-work-page .work-lead {
  padding: 18px 22px;
  border: 0;
  border-left: 4px solid var(--blue-600);
  border-radius: 0;
  background: var(--blue-100);
  color: var(--ink-700);
}

.zhouke-work-page .work-figure {
  margin: 28px 0 32px;
}

.zhouke-work-page .work-figure a {
  display: block;
  border-radius: 0;
}

.zhouke-work-page .work-figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  margin: 0 auto;
  border: 0;
  border-radius: 0;
  background: transparent;
}

.zhouke-work-page .work-figure--overview img {
  max-width: 720px;
}

.zhouke-work-page .work-figure--paper {
  max-width: none;
}

.zhouke-work-page .work-figure--paper img {
  max-width: 720px;
  border: 1px solid var(--line);
  box-shadow: var(--shadow-card);
}

.zhouke-work-page .work-figure figcaption {
  max-width: none;
  margin-top: 12px;
  color: var(--ink-500);
  font: 400 14px/1.65 var(--font-cjk);
  text-align: left;
}

.zhouke-work-page .work-section-title,
.zhouke-work-page .work-citation h2 {
  margin: 38px 0 16px;
  padding-bottom: 9px;
  border-bottom: 2px solid var(--blue-100);
  color: var(--blue-700);
  font: 700 23px/1.45 var(--font-cjk);
  letter-spacing: 0;
  text-wrap: wrap;
}

.zhouke-work-page .math-display {
  max-width: 100%;
  overflow-x: auto;
  margin: 20px 0 24px;
  padding: 15px 14px;
  border: 0;
  border-radius: 8px;
  background: var(--paper-100);
  color: var(--blue-700);
  text-align: center;
  -webkit-overflow-scrolling: touch;
}

.zhouke-work-page .math-display mjx-container {
  margin: 0 !important;
}

.zhouke-work-page .work-note {
  margin: 22px 0 26px !important;
  padding: 17px 20px;
  border: 0;
  border-left: 4px solid var(--blue-600);
  border-radius: 0;
  background: var(--paper-100);
  color: var(--ink-700);
  font-size: 15px;
  line-height: 1.75;
}

.zhouke-work-page .result-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
  margin: 22px 0 26px;
}

.zhouke-work-page .result-card {
  padding: 18px 14px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--paper-100);
  text-align: center;
}

.zhouke-work-page .result-card strong {
  display: block;
  margin-bottom: 5px;
  color: var(--blue-700);
  font: 700 25px/1.2 var(--font-interface);
}

.zhouke-work-page .result-card span {
  color: var(--ink-700);
  font-size: 14px;
  line-height: 1.5;
}

.zhouke-work-page .work-citation {
  margin-top: 38px;
  padding: 23px;
  border: 0;
  border-radius: 8px;
  background: var(--paper-100);
}

.zhouke-work-page .work-citation h2 {
  margin: 0 0 12px;
  padding: 0;
  border: 0;
  font-size: 20px;
}

.zhouke-work-page .work-citation p {
  margin: 0;
  font-family: Georgia, "Times New Roman", serif;
  font-size: 16px;
  line-height: 1.75;
  overflow-wrap: anywhere;
  text-align: left;
}

.zhouke-work-page .reference-list {
  margin: 16px 0 0 22px;
  padding: 0;
  color: var(--ink-700);
  font-size: 14px;
  line-height: 1.65;
}

.zhouke-work-page .reference-list li {
  margin-bottom: 8px;
  padding-left: 4px;
}

@media (hover: hover) and (pointer: fine) {
  .zhouke-work-page .work-back:hover,
  .zhouke-work-page .work-back:focus,
  .zhouke-work-page .work-article a:hover {
    color: var(--blue-600);
  }
}

@media (max-width: 767.98px) {
  .zhouke-work-page {
    padding: 24px 12px 44px;
  }

  .zhouke-work-page .work-article {
    padding: 28px 22px 36px;
    border-radius: 8px;
  }

  .zhouke-work-page .work-title {
    font-size: 28px;
    line-height: 1.42;
  }

  .zhouke-work-page .work-meta {
    margin-bottom: 24px;
  }

  .zhouke-work-page .work-lead,
  .zhouke-work-page .work-article p {
    font-size: 16px;
    line-height: 1.82;
  }

  .zhouke-work-page .work-lead {
    padding: 16px;
  }

  .zhouke-work-page .work-figure {
    margin: 24px 0 28px;
  }

  .zhouke-work-page .work-section-title {
    margin-top: 32px;
    font-size: 21px;
  }

  .zhouke-work-page .math-display {
    margin: 18px -6px 22px;
    padding: 14px 8px;
    border-radius: 8px;
    font-size: .93em;
  }
}

@media (max-width: 520px) {
  .zhouke-work-page .result-grid {
    grid-template-columns: 1fr;
    gap: 9px;
  }

  .zhouke-work-page .result-card {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    padding: 13px;
  }

  .zhouke-work-page .result-card strong {
    margin: 0;
    font-size: 22px;
  }
}

@media (max-width: 399.98px) {
  .zhouke-work-page {
    padding-right: 0;
    padding-left: 0;
  }

  .zhouke-work-page .work-article {
    padding: 24px 16px 32px;
    border-right: 0;
    border-left: 0;
    border-radius: 0;
  }

  .zhouke-work-page .work-title {
    font-size: 25px;
  }

  .zhouke-work-page .work-figure figcaption {
    font-size: 13px;
  }
}