stylesheet.css

@import url("https://fonts.googleapis.com/css2?family=Ma+Shan+Zheng&family=Outfit:wght@300;400;500;600;700&display=swap");

:root {
  /* Text colors */
  --text-primary: #1a1a1a;
  --text-secondary: #525252;
  --text-tertiary: #737373;
  
  /* Background colors */
  --bg-primary: #ffffff;
  --bg-secondary: #fafafa;
  
  /* Accent colors - Blue theme */
  --highlight-blue: #f0f7ff;
  --accent-blue: #2563eb;
  --accent-blue-dark: #1e40af;
  --accent-orange: #fb923c;
  
  /* Link colors */
  --link-color: #2563eb;
  --link-hover: #1d4ed8;
  --paper-link-gradient: linear-gradient(105deg, #2563eb 0%, #0891b2 48%, #f59e0b 100%);
  --paper-separator-blue: #123a6d;

  /* Display typography */
  --font-heading: Palatino, "Palatino Linotype", "Book Antiqua", Georgia, "Times New Roman", serif;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  padding: 59px 0 0 0;
  font-family: "Outfit", "Helvetica Neue", Arial, sans-serif;
  font-size: 14px;
  line-height: 1.4;
  letter-spacing: 0.01em;
  color: var(--text-primary);
  background: var(--bg-primary);
}

a {
  color: var(--link-color);
  text-decoration: none;
  transition: color 0.2s ease-out;
}

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

.link-with-icon {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  vertical-align: middle;
  white-space: nowrap;
}

.link-icon {
  width: 0.9em;
  height: 0.9em;
  flex: 0 0 auto;
}

.link-icon--brand {
  width: 1em;
  height: 1em;
  object-fit: contain;
}

.link-icon--project {
  width: 1.15em;
  height: 1.15em;
}

.github-stars {
  font-variant-numeric: tabular-nums;
}

.star-emoji {
  -webkit-text-fill-color: initial;
}

.profile-links {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  gap: 8px 15px;
  margin-top: 14px;
  text-align: center;
}

.profile-intro + .profile-intro {
  margin-top: 9px;
}

.profile-link {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  color: var(--text-secondary);
  white-space: nowrap;
}

.profile-link:hover {
  color: var(--accent-orange);
}

.profile-link__icon {
  display: block;
  width: 18px;
  height: 18px;
  object-fit: contain;
  flex: 0 0 auto;
}

.profile-link__icon--round {
  border-radius: 50%;
}

.profile-details {
  margin-top: 10px;
}

.profile-details summary {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  color: var(--link-color);
  cursor: pointer;
  font-size: 13px;
  line-height: 1.4;
  list-style: none;
  transition: color 0.2s ease-out;
}

.profile-details summary::-webkit-details-marker {
  display: none;
}

.profile-details summary::after {
  width: 6px;
  height: 6px;
  border: solid currentColor;
  border-width: 0 1.5px 1.5px 0;
  content: "";
  transform: rotate(45deg) translate(-1px, -1px);
  transition: transform 0.25s ease;
}

.profile-details[open] summary::after {
  transform: rotate(225deg) translate(-1px, -1px);
}

.profile-details summary:hover {
  color: var(--accent-orange);
}

.profile-details summary:focus-visible {
  border-radius: 2px;
  outline: 2px solid rgba(37, 99, 235, 0.35);
  outline-offset: 3px;
}

.profile-details__content {
  margin-top: 8px;
  padding: 10px 12px;
  border-left: 2px solid rgba(37, 99, 235, 0.18);
  color: var(--text-secondary);
  animation: paper-details-reveal 0.24s ease-out;
}

.profile-details__content p {
  margin: 0;
}

.profile-details__content p + p {
  margin-top: 7px;
}

.page-section {
  scroll-margin-top: 28px;
}

.section-nav {
  --indicator-y: 0px;
  --indicator-height: 30px;
  --indicator-x: 0px;
  --indicator-width: 56px;
  position: fixed;
  top: calc(47% - 50px);
  left: max(10px, calc(50% - 605px));
  z-index: 20;
  width: 132px;
  color: var(--text-tertiary);
  opacity: 0;
  visibility: hidden;
  transform: translateY(-50%);
}

.section-nav.is-ready {
  visibility: visible;
  animation: section-nav-enter 0.55s cubic-bezier(0.22, 1, 0.36, 1) forwards;
}

.section-nav__label {
  display: block;
  margin: 0 0 10px 17px;
  color: var(--text-tertiary);
  font-family: var(--font-heading);
  font-size: 12px;
  font-weight: 400;
  letter-spacing: 0.08em;
  line-height: 1;
  text-transform: uppercase;
}

.section-nav__track {
  position: relative;
}

.section-nav__track::before {
  position: absolute;
  top: 0;
  bottom: 0;
  left: 0;
  width: 1px;
  background: #e5e7eb;
  content: "";
}

.section-nav__indicator {
  position: absolute;
  top: 0;
  left: 0;
  z-index: 1;
  width: 2px;
  height: var(--indicator-height);
  border-radius: 999px;
  background: var(--accent-blue);
  opacity: 0;
  transform: translateY(var(--indicator-y));
  transition: height 0.28s ease, opacity 0.2s ease, transform 0.42s cubic-bezier(0.22, 1, 0.36, 1);
}

.section-nav.is-ready .section-nav__indicator {
  opacity: 1;
}

.section-nav__list {
  width: 100%;
  margin: 0;
  padding: 0;
  list-style: none;
}

.section-nav__item {
  margin: 0;
  padding: 0;
  opacity: 0;
}

.section-nav.is-ready .section-nav__item {
  animation: section-nav-link-enter 0.38s ease-out forwards;
  animation-delay: calc(90ms + var(--nav-index) * 42ms);
}

.section-nav__link {
  display: block;
  padding: 7px 6px 7px 17px;
  color: var(--text-tertiary);
  font-family: var(--font-heading);
  font-size: 14px;
  font-weight: 400;
  letter-spacing: 0.01em;
  line-height: 1.18;
  transition: color 0.2s ease, transform 0.28s cubic-bezier(0.22, 1, 0.36, 1);
}

.section-nav__link:hover,
.section-nav__link.is-active {
  color: var(--text-primary);
  text-decoration: none;
  transform: translateX(3px);
}

@keyframes section-nav-enter {
  from {
    opacity: 0;
    transform: translate(-10px, -50%);
  }
  to {
    opacity: 1;
    transform: translate(0, -50%);
  }
}

@keyframes section-nav-link-enter {
  from {
    opacity: 0;
    transform: translateX(-6px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

h2 {
  font-family: var(--font-heading);
  font-size: 25px;
  font-weight: 400;
  margin: 20px 0 12px;
  letter-spacing: 0.01em;
  line-height: 1.2;
  text-align: left;
}

.section-title {
  position: relative;
  width: fit-content;
}

.section-title::after {
  position: absolute;
  bottom: -6px;
  left: 0;
  width: 24px;
  height: 1px;
  background: var(--accent-blue);
  content: "";
  opacity: 0;
  transform: scaleX(0.35);
  transform-origin: left center;
  transition: opacity 0.24s ease, transform 0.38s cubic-bezier(0.22, 1, 0.36, 1);
}

.page-section.is-current .section-title::after {
  opacity: 1;
  transform: scaleX(1);
}

p {
  margin: 0 0 0;
}

.lyric-quote {
  width: 100%;
  max-width: 845px;
  margin: 8px auto 12px;
  padding: 9px 18px 10px;
  border-left: 2px solid #dbeafe;
  color: var(--text-secondary);
  font-family: "Songti SC", "STSong", "Noto Serif CJK SC", serif;
  font-size: 15px;
  line-height: 1.45;
}

.lyric-quote p {
  margin: 0;
}

.lyric-line {
  display: block;
}

.lyric-quote cite {
  display: block;
  margin-top: 4px;
  color: var(--text-tertiary);
  font-family: "Outfit", "Helvetica Neue", Arial, sans-serif;
  font-size: 10px;
  font-style: normal;
  letter-spacing: 0.04em;
}

.paper-row p {
  margin-top: 12px;
  margin-bottom: 0;
}

.representative-line {
  display: block;
  margin-top: 10px;
}

.paper-meta-note {
  display: inline;
  margin-top: 0;
  color: var(--text-secondary);
}

.compact-list {
  margin: 0;
  padding-left: 18px;
}

.compact-list li + li {
  margin-top: 4px;
}

.paper-details {
  margin-top: 9px;
}

.paper-details summary {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  width: fit-content;
  color: var(--link-color);
  cursor: pointer;
  font-size: 13px;
  font-weight: 400;
  line-height: 1.4;
  list-style: none;
  transition: color 0.2s ease-out;
}

.paper-details summary::-webkit-details-marker {
  display: none;
}

.paper-details summary::after {
  width: 6px;
  height: 6px;
  border: solid currentColor;
  border-width: 0 1.5px 1.5px 0;
  content: "";
  transform: rotate(45deg) translate(-1px, -1px);
  transition: transform 0.25s ease;
}

.paper-details[open] summary::after {
  transform: rotate(225deg) translate(-1px, -1px);
}

.paper-details summary:hover {
  color: var(--accent-orange);
}

.paper-details summary:focus-visible {
  border-radius: 2px;
  outline: 2px solid rgba(37, 99, 235, 0.35);
  outline-offset: 3px;
}

.paper-details p {
  margin-top: 8px;
  color: var(--text-secondary);
  animation: paper-details-reveal 0.24s ease-out;
}

@keyframes paper-details-reveal {
  from {
    opacity: 0;
    transform: translateY(-3px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

table {
  width: 100%;
  border-collapse: collapse;
}

td {
  vertical-align: top;
}

.name {
  display: flex;
  align-items: baseline;
  justify-content: center;
  flex-wrap: nowrap;
  gap: 8px;
  font-family: Palatino, "Palatino Linotype", "Book Antiqua", Georgia, "Times New Roman", serif;
  font-size: 28px;
  font-weight: 400;
  text-align: center;
  letter-spacing: 0.02em;
  margin: 0 0 12px 0;
  padding-top: 0;
  line-height: 1.2;
  white-space: nowrap;
}

.name-divider {
  color: var(--text-tertiary);
}

.chinese-name {
  font-family: "Ma Shan Zheng", "STKaiti", "KaiTi", serif;
  font-size: 1.22em;
  font-weight: 400;
  letter-spacing: 0;
}

.papertitle {
  font-size: 14px;
  font-weight: 700;
  color: var(--link-color);
  line-height: 1.4;
  display: block;
  margin-bottom: 4px;
}

papertitle {
  font-size: 14px;
  font-weight: 700;
  color: var(--link-color);
  line-height: 1.4;
  display: block;
  margin-bottom: 4px;
}

.highlight {
  background: rgba(255, 253, 224, 0.5);
  border-bottom: 2px solid #fba524;
  padding: 0 2px;
}

.section-divider {
  border-top: 1px solid #e5e5e5;
  margin: 24px 0;
}

.avatar {
  border-radius: 50%;
  display: block;
  width: 100%;
  max-width: 220px;
  margin-left: auto;
  margin-right: 40px;
  transition: box-shadow 0.25s ease-in-out;
}

.avatar:hover {
  box-shadow: 0 10px 24px rgba(0, 0, 0, 0.12);
}

.paper-row {
  padding: 8px 20px;
  margin-bottom: 8px;
  border-radius: 0;
  transition: background-color 0.2s ease-out;
}

.paper-row.highlight-paper:hover {
  background-color: #e0f2fe;
}

.paper-row.highlight-paper,
.paper-row[bgcolor="#ffffd0"] {
  background-color: var(--highlight-blue);
}

.paper-thumb {
  width: 100%;
  max-width: 160px;
  border: 1px solid #e5e5e5;
  border-radius: 8px;
  transition: opacity 0.25s ease-in-out;
}

.paper-links a {
  margin-right: 12px;
}

.paper-project-visual {
  display: block;
  width: 205px;
  margin: 0 auto;
}

.one {
  width: 205px;
  height: 205px;
  position: relative;
  overflow: hidden;
  margin: 0 auto;
  opacity: 1;
  transition: opacity 0.12s cubic-bezier(0.4, 0, 0.2, 1);
}

.one.swapping {
  opacity: 0;
}

.one > img {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: contain;
  display: none;
  z-index: 1;
}

.one.show > img {
  display: block;
}

.two {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  justify-content: center;
  align-items: center;
  display: none;
  z-index: 2;
}

.two.show {
  display: flex;
}

.two img {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

/* Author styling */
.authors {
  margin: 6px 0;
  line-height: 1.4;
}

.author-self {
  position: relative;
  z-index: 0;
  display: inline-block;
  padding: 0 1px;
  font-weight: 700;
  color: var(--text-primary);
  isolation: isolate;
}

.author-self::before {
  position: absolute;
  top: 50%;
  right: -2px;
  bottom: auto;
  left: -2px;
  z-index: -1;
  height: 0.9em;
  background: linear-gradient(
    90deg,
    rgba(255, 235, 59, 0.08) 0%,
    rgba(255, 235, 59, 0.34) 9%,
    rgba(255, 241, 118, 0.38) 48%,
    rgba(255, 235, 59, 0.3) 91%,
    rgba(255, 235, 59, 0.07) 100%
  );
  clip-path: polygon(0 22%, 9% 10%, 36% 17%, 68% 5%, 100% 18%, 99% 84%, 82% 94%, 51% 88%, 21% 100%, 1% 84%);
  content: "";
  transform: translateY(-50%) rotate(-0.7deg) skewX(-2deg);
  transform-origin: center;
}

.contribution-note {
  font-size: 13px;
  color: var(--text-secondary);
  margin: 4px 0;
}

/* Conference/Journal name */
em {
  font-style: italic;
  font-weight: 600;
  color: var(--text-primary);
}

/* Special awards/honors */
.award-tag {
  display: inline;
  margin-left: 4px;
  color: var(--accent-blue);
  font-weight: 700;
}

/* Paper description */
.paper-description {
  margin-top: 8px;
  line-height: 1.4;
  color: var(--text-secondary);
}

/* Author links in paper row - display as black text */
.paper-row a {
  color: var(--text-primary);
}

.paper-row a:hover {
  color: var(--accent-orange);
}

/* Override: paper title link should be blue */
.paper-row > td:nth-child(2) > a {
  color: var(--link-color);
}

.paper-row > td:nth-child(2) > a:hover {
  color: var(--accent-orange);
}

/* Research resource links */
.paper-links-group {
  display: inline-flex;
  align-items: center;
  flex-wrap: wrap;
  row-gap: 3px;
  color: var(--link-color);
  font-weight: 600;
}

.paper-link-item {
  display: inline-flex;
  align-items: center;
}

.paper-link-separator {
  display: inline-block;
  margin: 0 0.35em;
  color: var(--paper-separator-blue);
  font-weight: 600;
}

.paper-links-group a {
  color: var(--link-color);
  background-image: var(--paper-link-gradient);
  background-position: 0 50%;
  background-size: 140% 100%;
  background-clip: text;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  font-weight: 600;
  transition: background-position 0.25s ease, filter 0.25s ease;
}

.paper-links-group a:hover {
  color: var(--link-color);
  background-position: 100% 50%;
}

@media (max-width: 1170px) {
  body {
    padding-top: 35px;
  }

  .page-section {
    scroll-margin-top: 66px;
  }

  .section-nav {
    position: sticky;
    top: 0;
    left: auto;
    width: 100%;
    border-bottom: 1px solid rgba(229, 231, 235, 0.9);
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    transform: none;
  }

  .section-nav.is-ready {
    animation-name: section-nav-enter-compact;
  }

  .section-nav__inner {
    display: flex;
    align-items: center;
    gap: 10px;
    width: 100%;
    max-width: 875px;
    margin: 0 auto;
    padding: 7px 16px 6px;
  }

  .section-nav__label {
    flex: 0 0 auto;
    margin: 0;
  }

  .section-nav__track {
    flex: 1 1 auto;
    min-width: 0;
    overflow-x: auto;
    scrollbar-width: none;
  }

  .section-nav__track::-webkit-scrollbar {
    display: none;
  }

  .section-nav__track::before {
    top: auto;
    right: 0;
    bottom: 0;
    left: 0;
    width: auto;
    height: 1px;
  }

  .section-nav__indicator {
    top: auto;
    bottom: 0;
    width: var(--indicator-width);
    height: 2px;
    transform: translateX(var(--indicator-x));
    transition: opacity 0.2s ease, width 0.28s ease, transform 0.42s cubic-bezier(0.22, 1, 0.36, 1);
  }

  .section-nav__list {
    display: flex;
    width: max-content;
  }

  .section-nav__link {
    padding: 8px 10px 9px;
    white-space: nowrap;
  }

  .section-nav__link:hover,
  .section-nav__link.is-active {
    transform: none;
  }

  @keyframes section-nav-enter-compact {
    from {
      opacity: 0;
      transform: translateY(-8px);
    }
    to {
      opacity: 1;
      transform: translateY(0);
    }
  }
}

/* Responsive Design for Mobile */
@media (max-width: 768px) {
  body {
    font-size: 13px;
    line-height: 1.6;
  }

  table {
    display: block;
  }

  table tbody,
  table tr,
  table td {
    display: block;
    width: 100% !important;
  }

  /* Personal info section - stack avatar and text vertically */
  table tr td {
    padding: 16px !important;
  }

  .name {
    font-size: 24px;
    text-align: center;
  }

  /* Avatar */
  .avatar {
    max-width: 180px;
    margin: 0 auto 20px;
  }

  .avatar-cell {
    max-width: 100% !important;
  }

  /* Research section headings */
  h2 {
    font-size: 20px;
    margin: 20px 0 10px;
  }

  /* Paper/Project items - stack image and content vertically */
  .one {
    width: 100%;
    max-width: 250px;
    height: auto;
    aspect-ratio: 1 / 1;
    margin: 0 auto 16px;
  }

  .paper-project-visual {
    width: min(250px, 100%);
  }

  .two {
    width: 100%;
    max-width: none;
    height: 100%;
    position: absolute;
  }

  .one > img,
  .two img {
    width: 100%;
    height: 100%;
    object-fit: contain;
  }

  .papertitle {
    font-size: 15px;
  }

  /* Center text content on mobile */
  table tr td p {
    text-align: left;
  }

  .profile-links {
    justify-content: center;
  }

  .profile-details summary {
    font-size: 12.5px;
  }

  /* Adjust spacing for paper links */
  .paper-links a {
    display: inline-block;
    margin-right: 8px;
    margin-bottom: 4px;
  }

  /* Make table widths consistent */
  table[style*="max-width:800px"] {
    max-width: 100% !important;
    padding: 0 12px;
  }
}

@media (max-width: 480px) {
  .paper-links-group--extended {
    display: inline-grid;
    grid-template-columns: max-content max-content;
  }

  .paper-links-group--extended .paper-link-item:nth-child(3) .paper-link-separator {
    display: none;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  .section-nav.is-ready,
  .section-nav.is-ready .section-nav__item {
    animation: none;
    opacity: 1;
  }

  .section-nav__indicator,
  .section-nav__link,
  .section-title::after,
  .profile-details summary::after,
  .paper-details summary::after {
    transition: none;
  }

  .profile-details__content,
  .paper-details p {
    animation: none;
  }
}