.professor-page {
  --paper: #fffdfa;
  --pearl: #f6f3f3;
  --archive: #edf0ed;
  --blue-soft: #e4edf1;
  --ink: #211f24;
  --ink-soft: #302c32;
  --body: #514d52;
  --muted: #787278;
  --camellia: #c64b67;
  --deep-red: #98344c;
  --gold: #bfa86f;
  --sage: #66766a;
  --line: #d8d3d4;
  --container: 1240px;
  --header: 70px;
}

.professor-page {
  scroll-padding-top: calc(var(--header) + 1.125rem);
  color: var(--ink);
  background: var(--paper);
  font-family: "Source Han Serif CN", serif;
  font-size: 1rem;
  line-height: 1.75;
  letter-spacing: 0;
}
.professor-page::selection {
  background: var(--camellia);
  color: var(--paper);
}
.professor-page button,
.professor-page a {
  font: inherit;
}
.professor-page a {
  color: inherit;
  text-decoration: none;
}
.professor-page img {
  display: block;
  max-width: 100%;
}
.professor-page p,
.professor-page h1,
.professor-page h2,
.professor-page h3,
.professor-page figure,
.professor-page blockquote,
.professor-page ul,
.professor-page ol,
.professor-page dl,
.professor-page dd {
  margin: 0;
}
.professor-page ul,
.professor-page ol {
  padding: 0;
  list-style: none;
}
.professor-page section {
  scroll-margin-top: calc(var(--header) + 1.125rem);
}
.professor-page .container {
  width: min(var(--container), calc(100% - 112px));
  margin: 0 auto;
}
.professor-page :focus-visible {
  outline: 3px solid var(--gold);
  outline-offset: 4px;
}

.eyebrow,
.breadcrumb {
  display: flex;
  align-items: center;
  gap: 0.6875rem;
  color: var(--deep-red);
  font-size: 0.8125rem;
  font-weight: 700;
  line-height: 1.4;
}
.eyebrow::before,
.breadcrumb::before {
  width: 34px;
  height: 1px;
  background: currentColor;
  content: "";
}
.professor-page .section-title {
  max-width: 720px;
  margin-top: 0.875rem;
  font-size: 2.375rem;
  font-weight: 620;
  line-height: 1.3;
}
.professor-page .section-copy {
  color: var(--body);
  font-size: 1rem;
  line-height: 1.8;
}
.professor-page .section-copy + .section-copy {
  margin-top: 0.75rem;
}
.section-head {
  display: grid;
  grid-template-columns: 6fr 5fr;
  gap: 5.5rem;
  align-items: end;
}

.hero {
  position: relative;
  overflow: hidden;
  padding: 3.5rem 0 3.75rem;
  background: var(--pearl);
}
.hero::before {
  position: absolute;
  top: 0;
  bottom: 0;
  left: calc(50% + 258px);
  width: 1px;
  background: rgba(152, 52, 76, 0.22);
  content: "";
}
.hero-grid {
  display: grid;
  min-height: 500px;
  grid-template-columns: minmax(0, 7fr) minmax(420px, 5fr);
  gap: 3.75rem;
  align-items: center;
}
.hero-content {
  position: relative;
  padding: 0.875rem 0 0.5rem;
}
.hero h1 {
  margin-top: 1.25rem;
  font-size: 3.625rem;
  font-weight: 650;
  line-height: 1.12;
}
.professor-page .hero-deck {
  margin-top: 1rem;
  color: var(--deep-red);
  font-size: 1.5rem;
  font-weight: 590;
  line-height: 1.5;
}
.professor-page .hero-intro {
  max-width: 680px;
  margin-top: 1.1875rem;
  color: var(--body);
  font-size: 1rem;
  line-height: 1.8;
}
.hero-portrait {
  position: absolute;
  top: -34px;
  right: -8px;
  z-index: 3;
  width: 220px;
  height: 220px;
  overflow: hidden;
  border: 6px solid var(--paper);
  background: var(--warm);
  box-shadow: 0 18px 38px rgba(33, 31, 36, 0.18);
}
.hero-portrait img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
}
.professor-page .profile-facts {
  display: grid;
  margin-top: 1.75rem;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  border-top: 1px solid var(--line);
  border-left: 1px solid var(--line);
}
.profile-facts div {
  min-width: 0;
  min-height: 79px;
  padding: 0.875rem 1.0625rem;
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}
.profile-facts dt {
  color: var(--muted);
  font-size: 0.6875rem;
  font-weight: 650;
}
.profile-facts dd {
  margin-top: 0.25rem;
  font-size: 0.875rem;
  font-weight: 570;
  line-height: 1.55;
}
.hero-media {
  position: relative;
  height: 474px;
  overflow: hidden;
  border: 1px solid #c9c3c4;
  background: #d9d6d2;
  box-shadow: 0 20px 46px rgba(33, 31, 36, 0.11);
}
.hero-media::before {
  position: absolute;
  inset: 16px;
  z-index: 2;
  border: 1px solid rgba(255, 253, 250, 0.55);
  content: "";
  pointer-events: none;
}
.hero-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: 60% center;
  filter: saturate(0.68) contrast(0.98);
  transition: transform 520ms ease;
}
.hero-media:hover img {
  transform: scale(1.018);
}
.hero-media figcaption {
  position: absolute;
  right: 0;
  bottom: 0;
  z-index: 3;
  padding: 0.625rem 1rem;
  background: rgba(33, 31, 36, 0.86);
  color: var(--paper);
  font-size: 0.75rem;
}

.research {
  padding: var(--yj-section-y) 0;
  background: var(--paper);
}
.professor-page .method-map {
  display: grid;
  margin-top: 2.5rem;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  border-top: 1px solid var(--line);
  border-left: 1px solid var(--line);
}
.method {
  display: grid;
  min-height: 172px;
  padding: 1.5625rem 1.625rem;
  grid-template-rows: 42px auto auto;
  align-content: center;
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}
.method-icon {
  display: grid;
  width: 40px;
  height: 40px;
  place-items: center;
  color: var(--deep-red);
}
.method-icon svg {
  width: 30px;
  height: 30px;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.7;
  stroke-linecap: round;
  stroke-linejoin: round;
}
.method b {
  margin-top: 0.8125rem;
  font-size: 1.375rem;
  font-weight: 610;
}
.method > span:last-child {
  margin-top: 0.125rem;
  color: var(--muted);
  font-size: 0.75rem;
}

.timeline {
  padding: var(--yj-section-y) 0;
  overflow: hidden;
  background: var(--archive);
}
.timeline .eyebrow {
  color: var(--sage);
}
.professor-page .timeline-list {
  position: relative;
  display: grid;
  margin-top: 2.75rem;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 0;
  border-top: 1px solid #aeb7b0;
}
.timeline-item {
  position: relative;
  min-height: 190px;
  padding: 1.875rem 1.75rem 1rem 0;
  border-right: 1px solid #c9cfca;
}
.timeline-item + .timeline-item {
  padding-left: 1.75rem;
}
.timeline-item:last-child {
  border-right: 0;
}
.timeline-item::before {
  position: absolute;
  top: -6px;
  left: 0;
  width: 11px;
  height: 11px;
  border: 3px solid var(--archive);
  border-radius: 50%;
  background: var(--camellia);
  box-shadow: 0 0 0 1px var(--camellia);
  content: "";
}
.timeline-item + .timeline-item::before {
  left: 28px;
}
.timeline-item time {
  display: block;
  color: var(--deep-red);
  font-size: 1.5625rem;
  font-weight: 700;
  line-height: 1.2;
}
.professor-page .timeline-item p {
  max-width: 250px;
  margin-top: 0.875rem;
  color: var(--body);
  font-size: 0.875rem;
  line-height: 1.75;
}

.evidence {
  padding: var(--yj-section-y) 0;
  color: var(--paper);
  background: var(--ink);
}
.evidence-grid {
  display: grid;
  grid-template-columns: 5fr 7fr;
  gap: 5.625rem;
  align-items: center;
}
.evidence .eyebrow {
  color: var(--gold);
}
.evidence .section-title {
  margin-top: 0.9375rem;
}
.evidence .section-copy {
  margin-top: 1.5rem;
  color: #d6cfd3;
}
.paper-years {
  border-top: 1px solid #5c565d;
}
.paper-row {
  display: grid;
  min-height: 81px;
  padding: 1.0625rem 0.25rem;
  grid-template-columns: 105px 1fr;
  gap: 1.625rem;
  align-items: center;
  border-bottom: 1px solid #5c565d;
}
.paper-row strong {
  color: var(--gold);
  font-size: 1.5625rem;
  line-height: 1;
}
.paper-row span {
  color: #f1edef;
  font-size: 0.9375rem;
}
.professor-page .book-note {
  display: grid;
  margin-top: 1.75rem;
  padding-top: 1.125rem;
  grid-template-columns: 82px 1fr;
  gap: 0.875rem;
  border-top: 1px solid #5c565d;
  color: #e4dde1;
  font-size: 0.875rem;
  line-height: 1.7;
}
.book-note strong {
  color: var(--gold);
}

.patent {
  padding: var(--yj-section-y) 0;
  background: var(--blue-soft);
}
.patent-grid {
  display: grid;
  grid-template-columns: 4fr 7fr;
  gap: 4.875rem;
  align-items: stretch;
}
.year-panel {
  display: flex;
  position: relative;
  min-height: 396px;
  padding: 2.125rem 2.375rem;
  overflow: hidden;
  flex-direction: column;
  justify-content: space-between;
  background: var(--deep-red);
  color: var(--paper);
}
.year-panel::after {
  position: absolute;
  right: -52px;
  bottom: -54px;
  width: 190px;
  height: 190px;
  border: 1px solid rgba(255, 253, 250, 0.25);
  border-radius: 50%;
  content: "";
}
.year-panel span {
  color: #eadde1;
  font-size: 0.8125rem;
  font-weight: 650;
}
.year-panel strong {
  font-size: 6.25rem;
  font-weight: 620;
  line-height: 1;
}
.year-panel time {
  padding-top: 1.0625rem;
  border-top: 1px solid rgba(255, 253, 250, 0.45);
  color: #eadde1;
  font-size: 1rem;
}
.patent-copy {
  display: flex;
  flex-direction: column;
  justify-content: center;
}
.patent-copy .section-copy {
  max-width: 720px;
  margin-top: 1.375rem;
}
.professor-page .record-boundary {
  max-width: 720px;
  margin-top: 1.375rem;
  padding: 1.0625rem 1.25rem;
  border-left: 3px solid var(--gold);
  background: rgba(255, 253, 250, 0.72);
  color: var(--body);
  font-size: 0.875rem;
  line-height: 1.72;
}
.professor-page .text-link {
  display: inline-flex;
  width: max-content;
  margin-top: 1.5rem;
  padding-bottom: 0.375rem;
  align-items: center;
  gap: 0.8125rem;
  border-bottom: 1px solid currentColor;
  color: var(--deep-red);
  font-size: 0.875rem;
  font-weight: 700;
  transition:
    gap 160ms ease,
    color 160ms ease;
}
.professor-page .text-link:hover,
.professor-page .text-link:focus-visible {
  gap: 1.1875rem;
  color: var(--ink);
}

.product-path {
  padding: var(--yj-section-y) 0;
  background: var(--paper);
}
.professor-page .process {
  display: grid;
  margin-top: 2.625rem;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  border-top: 1px solid var(--line);
  border-left: 1px solid var(--line);
}
.process-step {
  display: flex;
  position: relative;
  min-width: 0;
  min-height: 118px;
  padding: 1.25rem 1.5rem;
  flex-direction: column;
  justify-content: center;
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}
.process-step::after {
  position: absolute;
  top: 50%;
  right: -8px;
  z-index: 2;
  width: 15px;
  height: 15px;
  border-top: 1px solid var(--gold);
  border-right: 1px solid var(--gold);
  background: var(--paper);
  content: "";
  transform: translateY(-50%) rotate(45deg);
}
.process-step:last-child::after {
  display: none;
}
.process-step span {
  color: var(--deep-red);
  font-size: 0.6875rem;
  font-weight: 700;
}
.process-step b {
  margin-top: 0.5rem;
  font-size: 0.9375rem;
  font-weight: 610;
  line-height: 1.55;
}
.process-step:last-child {
  background: var(--pearl);
}
.professor-page .transfer-note {
  display: grid;
  width: max-content;
  max-width: 100%;
  margin-top: 1.375rem;
  padding: 0.8125rem 1.125rem;
  grid-template-columns: 62px 1fr;
  gap: 0.875rem;
  border-left: 3px solid var(--camellia);
  background: var(--pearl);
  color: var(--body);
  font-size: 0.875rem;
}
.transfer-note strong {
  color: var(--deep-red);
  font-size: 1.125rem;
}

.responsibility {
  padding: var(--yj-section-y-compact) 0;
  background: var(--ink-soft);
  color: var(--paper);
}
.responsibility .eyebrow {
  color: var(--gold);
}
.responsibility-head {
  display: grid;
  grid-template-columns: 220px 1fr;
  gap: 3rem;
  align-items: end;
}
.responsibility-head .section-title {
  margin-top: 0;
}
.professor-page .responsibility-split {
  display: grid;
  margin-top: 2.125rem;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  border-top: 1px solid #5d575e;
  border-left: 1px solid #5d575e;
}
.responsibility-split > div {
  min-height: 184px;
  padding: 1.625rem 1.875rem;
  border-right: 1px solid #5d575e;
  border-bottom: 1px solid #5d575e;
}
.responsibility-split span {
  color: var(--gold);
  font-size: 0.75rem;
  font-weight: 700;
}
.professor-page .responsibility-split h3 {
  margin-top: 0.5rem;
  font-size: 1.375rem;
  font-weight: 610;
}
.professor-page .responsibility-split p {
  max-width: 520px;
  margin-top: 0.625rem;
  color: #d5cfd2;
  font-size: 0.875rem;
  line-height: 1.72;
}
.action-row {
  display: flex;
  gap: 2.25rem;
}
.responsibility .text-link {
  color: var(--paper);
}
.responsibility .text-link:hover,
.responsibility .text-link:focus-visible {
  color: var(--gold);
}

.reveal {
  opacity: 0;
  transform: translateY(16px);
  transition:
    opacity 520ms cubic-bezier(0.2, 0.7, 0.2, 1),
    transform 520ms cubic-bezier(0.2, 0.7, 0.2, 1);
}
.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

@media (max-width: 1440px) {
  .professor-page .container {
    width: calc(100% - 96px);
  }
  .hero-grid {
    grid-template-columns: minmax(0, 7fr) 420px;
    gap: 3rem;
  }
  .hero h1 {
    font-size: 3.375rem;
  }
  .hero-deck {
    font-size: 1.375rem;
  }
  .hero-portrait {
    top: -22px;
    right: -4px;
    width: 190px;
    height: 190px;
  }
  .section-head {
    gap: 4rem;
  }
  .evidence-grid {
    gap: 4.25rem;
  }
  .patent-grid {
    gap: 3.875rem;
  }
  .method {
    padding-right: 1.375rem;
    padding-left: 1.375rem;
  }
  .process-step {
    padding-right: 1.1875rem;
    padding-left: 1.1875rem;
  }
}

@media (max-width: 680px) {
  .professor-page .container {
    width: calc(100% - 28px);
  }

  .hero-grid,
  .section-head,
  .evidence-grid,
  .patent-grid {
    grid-template-columns: 1fr;
    gap: 2rem;
  }

  .hero {
    padding: var(--yj-section-y-hero) 0 var(--yj-section-y-tight);
  }

  .hero-content {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 156px;
    column-gap: 0.875rem;
    align-items: center;
  }

  .hero-content > .breadcrumb,
  .professor-page .hero-intro,
  .professor-page .profile-facts {
    grid-column: 1 / -1;
  }

  .professor-page .hero-deck {
    grid-column: 1;
    margin-top: 0.75rem;
  }

  .hero h1,
  .professor-page .section-title {
    font-size: 2.125rem;
  }

  .hero h1 {
    grid-column: 1;
    margin-top: 0.875rem;
  }

  .hero-portrait {
    position: relative;
    top: auto;
    right: auto;
    grid-column: 2;
    grid-row: 2 / span 2;
    justify-self: end;
    width: 156px;
    height: 156px;
    margin-top: 0;
  }

  .hero-media {
    width: 100%;
    height: auto;
    aspect-ratio: 1 / 1.05;
  }

  .professor-page .method-map {
    margin-top: 1.75rem;
  }

  .method {
    min-height: 148px;
    padding: 1.125rem 1rem;
    grid-template-rows: 34px auto auto;
  }

  .method-icon {
    width: 32px;
    height: 32px;
  }

  .method-icon svg {
    width: 24px;
    height: 24px;
  }

  .method b {
    margin-top: 0.625rem;
    font-size: 1.1875rem;
    line-height: 1.35;
  }

  .method > span:last-child {
    font-size: 0.6875rem;
  }

  .timeline {
    padding: 2.75rem 0;
  }

  .professor-page .timeline-list {
    margin-top: 1.75rem;
  }

  .timeline-item {
    min-height: 156px;
    padding: 1.375rem 1rem 0.75rem 0;
  }

  .timeline-item + .timeline-item {
    padding-left: 1rem;
  }

  .timeline-item::before {
    top: -5px;
    width: 9px;
    height: 9px;
    border-width: 2px;
  }

  .timeline-item + .timeline-item::before {
    left: 16px;
  }

  .timeline-item time {
    font-size: 1.25rem;
    line-height: 1.2;
  }

  .professor-page .timeline-item p {
    margin-top: 0.625rem;
    font-size: 0.75rem;
    line-height: 1.65;
  }

  .paper-years {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    border-left: 1px solid #5c565d;
  }

  .paper-row {
    min-height: 88px;
    padding: 0.75rem 0.875rem;
    grid-template-columns: 1fr;
    gap: 0.375rem;
    align-content: start;
    align-items: start;
    border-right: 1px solid #5c565d;
  }

  .paper-row strong {
    font-size: 1.25rem;
  }

  .paper-row span {
    font-size: 0.8125rem;
    line-height: 1.6;
  }

  .patent {
    padding: 2.75rem 0;
  }

  .year-panel {
    min-height: 300px;
    padding: 1.625rem 2rem;
  }

  .year-panel::after {
    right: -42px;
    bottom: -44px;
    width: 142px;
    height: 142px;
  }

  .year-panel span {
    font-size: 0.75rem;
  }

  .year-panel strong {
    font-size: 4.75rem;
  }

  .year-panel time {
    padding-top: 0.875rem;
    font-size: 0.875rem;
  }

  .responsibility-head {
    grid-template-columns: 1fr;
    gap: 1rem;
    align-items: start;
  }

  .responsibility-head .section-title {
    font-size: 2rem;
    line-height: 1.3;
  }

  .action-row {
    display: flex;
    gap: 1.25rem;
    flex-wrap: nowrap;
  }
}

@media (prefers-reduced-motion: reduce) {
  .professor-page {
    scroll-behavior: auto;
  }
  *,
  *::before,
  *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
  }
  .reveal {
    opacity: 1;
    transform: none;
  }
}