/* Modern Font Setup */
@import url('https://fonts.googleapis.com/css2?family=Lato:wght@300;400;700&family=Open+Sans:wght@300;400;600&display=swap');

/* -----------------------------------------------------------------
   Palette: burgundy + steel blue.
   --primary-color   links, section icons, headings on hover
   --secondary-color accent bar, link hover, the call-out line
   Change these two and the whole page follows.
   ----------------------------------------------------------------- */
:root {
  --primary-color: #8c2f39;
  --secondary-color: #43699e;
  --text-color: #3c3534;
  --heading-color: #262121;
  --muted-color: #756b68;
  --page-bg: #faf8f6;
  --light-gray: #f5f2f0;
  --border-color: #e9e1db;
  --highlight-bg: #f7f1ef;
  --shadow: 0 4px 14px rgba(60,40,38,0.09);

  /* Adjusted scale factor */
  --scale-factor: 0.85;
}

/* Center the entire page */
.page-wrapper {
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 100vh;
  padding: 20px;
  box-sizing: border-box;
}

body {
  background-color: var(--page-bg);
  color: var(--text-color);
  font-family: 'Open Sans', 'Lato', Verdana, Helvetica, sans-serif;
  line-height: 1.6;
  margin: 0;
  padding: 0;
  width: 100%;
  overflow-x: hidden;
}

.container {
  max-width: 1000px;
  width: 100%;
  zoom: var(--scale-factor);
  margin: 0 auto;
}

.main-table {
  width: 100%;
  border-spacing: 0;
  border-collapse: separate;
  margin: 0 auto;
}

/* 去掉全局链接的下划线并使用自定义颜色 */
a {
  text-decoration: none;
  color: var(--primary-color); /* 使用你定义的主色 */
  transition: color 0.3s ease;
}

/* 鼠标悬停时加一个交互效果 */
a:hover {
  color: var(--secondary-color); /* 悬停时换颜色 */
  text-decoration: underline; /* 如果你想悬停时才显示下划线，可以保留 */
}

/* Header Section */
.header-table {
  width: 100%;
  margin-bottom: 30px;
}

.profile-text {
  padding: 2.5%;
  width: 63%;
  vertical-align: middle;
}

.profile-img {
  padding: 2.5%;
  width: 30%;
  vertical-align: middle;
  max-width: 40%;
}

h1 {
  font-size: 32px;
  font-weight: 700;
  text-align: center;
  margin: 10px 0 20px;
  color: var(--heading-color);
  letter-spacing: -0.01em;
}

.profile-text p {
  font-size: 16px;
  margin-bottom: 20px;
}

.img-container {
  border-radius: 10px;
  overflow: hidden;
  border: 1px solid var(--border-color);
  box-shadow: var(--shadow);
  transition: transform 0.3s ease;
}

.img-container:hover {
  transform: translateY(-5px);
}

.img-container img {
  width: 100%;
  height: auto;
  display: block;
}

.social-links {
  display: flex;
  flex-wrap: nowrap;
  justify-content: center;
  width: fit-content;
  gap: 10px;
  text-align: center;
  margin: 25px auto 0;
}

.social-links a {
  display: inline-block;
  margin: 0;
  padding: 7px 14px;
  font-size: 14px;
  white-space: nowrap;
  background-color: transparent;
  border: 1px solid var(--border-color);
  border-radius: 30px;
  color: var(--primary-color);
  font-weight: 600;
  text-decoration: none;
  transition: all 0.25s ease;
  box-shadow: none;
}

.social-links a:hover {
  background-color: var(--primary-color);
  border-color: var(--primary-color);
  color: #fff;
  text-decoration: none;
  transform: translateY(-2px);
  box-shadow: 0 4px 10px rgba(140, 47, 57, 0.22);
}

.social-links a i {
  margin-right: 6px;
}

/* Section Headers
   A hairline rule with a short accent tab at the left, instead of the
   template's full-width heavy underline. */
.section {
  position: relative;
  padding: 0 0 12px;
  margin: 40px 0 20px;
  border-bottom: 1px solid var(--border-color);
}

.section::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -1px;
  width: 54px;
  height: 2px;
  background: var(--secondary-color);
}

.section h2 {
  font-size: 23px;
  font-weight: 700;
  color: var(--heading-color);
  margin: 0;
  letter-spacing: -0.01em;
}

.section h2 i {
  margin-right: 11px;
  color: var(--primary-color);
  font-size: 0.84em;
  vertical-align: 1px;
}

/* News Section */
.news {
  margin-bottom: 25px;
}

.news-list {
  margin: 0;
  padding-left: 0;
  list-style: none;
}

.news-list li {
  padding: 10px 0;
  border-bottom: 1px solid var(--border-color);
  font-size: 15px;
}

.news-list li:last-child {
  border-bottom: none;
}

.news-date {
  display: inline-block;
  min-width: 72px;
  font-weight: 700;
  font-size: 14px;
  font-variant-numeric: tabular-nums;
  letter-spacing: 0.01em;
  color: var(--primary-color);
}

.news-dot {
  display: inline-block;
  margin: 0 10px;
  color: var(--border-color);
}

/* Misc Section */
.misc {
  margin-bottom: 25px;
}

.misc-subtitle {
  margin: 0 0 8px;
  font-size: 16px;
  font-weight: 700;
  color: var(--heading-color);
}

.misc-bullets {
  margin: 0 0 25px;
  padding-left: 20px;
  font-size: 16px;
  line-height: 1.6;
}

.misc-bullets li {
  margin: 6px 0;
}

/* The widget sizes itself from this container's width (map.js reads
   parent().width() when w=a and sets height = w / 2.04), so scale the
   map by scaling .visitor-stats. */
.visitor-stats {
  display: block;
  width: 50%;
  min-width: 260px;
  max-width: 100%;
  margin: 8px auto 24px;
}

.visitor-stats #clustrmaps-widget,
.visitor-stats #mapmyvisitors-widget {
  max-width: 100%;
  margin: 0 auto;
  overflow: hidden;
}

.visitor-stats #clustrmaps-widget canvas,
.visitor-stats #clustrmaps-widget iframe,
.visitor-stats #clustrmaps-widget img,
.visitor-stats #mapmyvisitors-widget canvas,
.visitor-stats #mapmyvisitors-widget iframe,
.visitor-stats #mapmyvisitors-widget img {
  max-width: 100% !important;
}

/* Research Section - Improved Image Hover Effect */
.research-table {
  width: 100%;
  margin-bottom: 30px;
  border-spacing: 0;
}

/* Don't show divider after the last research item */
.research-table tbody.research-item:last-child {
  border-bottom: none;
}

.research-table tbody.research-item {
  /* Minimal separation between projects */
  border-bottom: 1px solid var(--border-color);
}

.research-table tbody.research-item > tr {
  width: 100%;
}

.research-table tbody.research-item.highlight {
  /* Use a very subtle cue for co-first/first author items */
  border-bottom-color: var(--border-color);
}

/* Tinted panel plus a short accent edge, instead of a full-width wash */
.research-table tbody.research-item.highlight td {
  background: var(--highlight-bg);
}

.research-table tbody.research-item.highlight td:first-child {
  border-left: 3px solid var(--secondary-color);
}

.research-img {
  padding: 20px;
  width: 30%;
  vertical-align: middle;
}

.img-hover-container {
  position: relative;
  border-radius: 8px;
  overflow: hidden;
  box-shadow: none;
  aspect-ratio: 230/165; /* Maintain original aspect ratio */
  background: #ffffff;
}

.img-hover-container:hover {
  transform: none;
}

.img-hover-container .static-img,
.img-hover-container .animated-img {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  transition: opacity 0.3s ease;
  display: flex;
  align-items: center;
  justify-content: center;
}

.img-hover-container .static-img {
  opacity: 1;
}

.img-hover-container .animated-img {
  opacity: 0;
}

/* Only fade the static image out when there is actually an .animated-img
   underneath to reveal. Without the :has() guard, hovering a card that has
   no hover GIF fades the figure into the blank container background. */
.img-hover-container:has(.animated-img):hover .static-img {
  opacity: 0;
}

.img-hover-container:hover .animated-img {
  opacity: 1;
}

.img-hover-container img {
  max-width: 100%;
  max-height: 100%;
  object-fit: contain; /* Fit original shape */
  display: block;
}

/* Wide teaser figures: match the image's own aspect ratio so nothing is letterboxed.
   Current value = images/tau0/teaser.png (1400x667). */
.release-teaser {
  aspect-ratio: 1400/667;
  background: #ffffff;
}

.research-details {
  padding: 20px;
  width: 70%;
  vertical-align: middle;
}

.badges {
  margin: 2px 0 0;
}

.badge {
  display: inline-block;
  font-size: 12px;
  font-weight: 600;
  color: var(--muted-color);
}

.badge-highlight {
  color: var(--primary-color);
}

.research-details h3 {
  font-size: 20px;
  font-weight: 700;
  margin: 0 0 10px;
  color: var(--heading-color);
}

.research-details h3 a {
  color: var(--heading-color);
  text-decoration: none;
  transition: color 0.3s ease;
}

.research-details h3 a:hover {
  color: var(--primary-color);
}

.authors {
  margin: 10px 0;
  font-size: 15px;
  line-height: 1.5;
}

.authors strong {
  font-weight: 700;
}

.pub-info {
  margin: 10px 0;
  font-style: italic;
  color: var(--muted-color);
}

.links {
  margin: 15px 0;
}

.links a {
  display: inline-block;
  margin-right: 12px;
  padding: 0;
  background-color: transparent;
  color: var(--primary-color);
  text-decoration: none;
  font-weight: 600;
  transition: color 0.3s ease;
}

.links a:hover {
  color: var(--secondary-color);
  text-decoration: underline;
}

.links a i {
  margin-right: 6px;
}

.research-details p {
  margin-top: 15px;
  font-size: 15px;
}

/* Experience Section - Simplified Logo */
.experience-table {
  width: 100%;
  border-spacing: 0;
  margin-bottom: 30px;
}

.logo-cell {
  padding: 20px;
  width: 20%;
  vertical-align: top;
}

.logo-container {
  display: flex;
  align-items: center;
  justify-content: center;
  height: 120px; /* Increased height */
  padding: 0;
  background: transparent;
  box-shadow: none;
}

.logo-container img {
  max-height: 100px; /* Larger size */
  width: auto;
  filter: drop-shadow(0 2px 4px rgba(0,0,0,0.1));
}

.exp-details {
  padding: 20px;
  width: 80%;
  vertical-align: top;
}

.exp-details h3 {
  font-size: 20px;
  font-weight: 700;
  margin: 0 0 5px;
  color: var(--heading-color);
}

.exp-meta {
  display: flex;
  justify-content: space-between;
  margin-bottom: 10px;
  color: var(--muted-color);
  font-size: 15px;
}

.exp-details p {
  margin: 8px 0;
}

/* Footer */
.footer {
  text-align: right;
  font-size: 14px;
  color: var(--muted-color);
  padding-top: 30px;
  margin-top: 30px;
  border-top: 1px solid var(--border-color);
}

.footer a {
  color: var(--muted-color);
  text-decoration: none;
}

.footer a:hover {
  color: var(--primary-color);
  text-decoration: underline;
}

/* Responsive Design */
@media (max-width: 1000px) and (min-width: 769px) {
  .page-wrapper {
    padding: 30px;
  }
  
  .container {
    transform: scale(0.95);
  }
}

@media (max-width: 768px) and (min-width: 481px) {
  .page-wrapper {
    padding: 10px;
  }
}

@media (max-width: 768px) {
  
  .container {
    transform: scale(0.75);
    transform-origin: top center;
    width: 133.33%; /* Compensate for scale to maintain full width */
  }
  
  .header-table {
    display: table;
    width: 100%;
  }
  
  .profile-text {
    width: 60%;
    display: table-cell;
    padding: 1.5% 10px;
    vertical-align: middle;
  }
  
  .profile-img {
    width: 35%;
    display: table-cell;
    padding: 1.5% 10px;
    vertical-align: middle;
    max-width: 35%;
  }
  
  h1 {
    font-size: 26px;
    margin: 3px 0 10px;
  }
  
  .profile-text p {
    font-size: 14px;
    margin-bottom: 10px;
  }
  
  .social-links {
    margin-top: 10px;
  }
  
  .social-links a {
    margin: 0 5px;
    padding: 5px 10px;
    font-size: 13px;
  }
  
  .social-links a i {
    margin-right: 5px;
    font-size: 13px;
  }
  
  .section {
    margin: 15px 0 10px;
    padding: 8px 0;
  }
  
  .section h2 {
    font-size: 19px;
  }
  
  .section h2 i {
    margin-right: 8px;
    font-size: 17px;
  }
  
  .research-table {
    display: table;
    width: 100%;
  }
  
  .research-table tbody.research-item > tr {
    display: table-row;
  }
  
  .research-img {
    width: 45%;
    display: table-cell;
    padding: 8px;
    vertical-align: middle;
  }
  
  .research-details {
    width: 55%;
    display: table-cell;
    padding: 8px;
    vertical-align: middle;
  }
  
  .img-hover-container {
    max-width: 100%;
    margin: 0;
    transform: none;
  }

  /* Keep research highlight subtle on mobile as well */
  .research-table tbody.research-item.highlight td {
    background: var(--highlight-bg);
  }
  
  .experience-table {
    display: table;
    width: 100%;
  }
  
  .experience-table tbody > tr {
    display: table-row;
  }
  
  .logo-cell {
    width: 12%;
    display: table-cell;
    padding: 8px 10px;
    vertical-align: middle;
  }
  
  .exp-details {
    width: 88%;
    display: table-cell;
    padding: 8px 10px;
    vertical-align: middle;
  }
  
  .exp-meta {
    flex-direction: row;
    justify-content: space-between;
    margin-bottom: 5px;
    font-size: 13px;
  }
  
  .logo-container {
    height: 100px;
    width: 100%;
    margin-bottom: 0;
    display: flex;
    align-items: center;
    justify-content: center;
  }
  
  .logo-container img {
    max-height: 75px;
    width: auto;
    height: auto;
    object-fit: contain;
  }
  
  .research-details h3 {
    font-size: 17px;
    margin: 0 0 6px;
  }
  
  .authors {
    font-size: 14px;
    margin: 6px 0;
  }
  
  .pub-info {
    font-size: 14px;
    margin: 6px 0;
  }
  
  .links {
    margin: 10px 0;
  }
  
  .links a {
    font-size: 14px;
    margin-right: 8px;
  }
  
  .research-details p {
    font-size: 14px;
    margin-top: 10px;
  }
  
  .news-list li {
    font-size: 14px;
    padding: 5px 0;
  }
  
  .exp-details h3 {
    font-size: 17px;
    margin: 0 0 3px;
  }
  
  .exp-details p {
    font-size: 14px;
    margin: 5px 0;
  }
  
  .misc {
    margin-bottom: 15px;
  }
  
  .misc p {
    font-size: 14px;
  }
  
  .misc-bullets {
    font-size: 14px;
    padding-left: 15px;
    margin: 0 0 15px;
  }
  
  .misc-bullets li {
    margin: 4px 0;
  }
  
  .misc-subtitle {
    font-size: 14px;
  }
}

@media (max-width: 480px) {
  .page-wrapper {
    padding: 0 !important;
  }
  
  .container {
    transform: scale(0.9);
    transform-origin: top center;
    width: 111.11%; /* Compensate for scale to maintain full width */
  }
  
  .profile-text {
    padding: 1% 8px;
  }
  
  .profile-img {
    padding: 1% 8px;
  }
  
  .research-img {
    padding: 8px;
  }
  
  .research-details {
    padding: 8px;
  }
  
  .logo-cell {
    padding: 8px;
  }
  
  .exp-details {
    padding: 8px;
  }
  
  .section {
    padding-left: 8px;
    padding-right: 8px;
    margin: 12px 0 8px;
    padding-top: 6px;
    padding-bottom: 6px;
  }

  /* keep the accent tab aligned with the indented heading text */
  .section::after {
    left: 8px;
    width: 44px;
  }
  
  .news {
    padding-left: 8px;
    padding-right: 8px;
  }
  
  .misc {
    padding-left: 8px;
    padding-right: 8px;
  }
  
  .footer {
    padding-left: 8px;
    padding-right: 8px;
  }
  
  h1 {
    font-size: 24px;
    margin: 3px 0 10px;
  }
  
  .profile-text p {
    font-size: 14px;
    margin-bottom: 10px;
  }
  
  .social-links {
    margin-top: 10px;
  }
  
  .social-links a {
    margin: 0 4px;
    padding: 5px 10px;
    font-size: 13px;
  }
  
  .social-links a i {
    margin-right: 4px;
    font-size: 13px;
  }
  
  .section h2 {
    font-size: 19px;
  }
  
  .section h2 i {
    margin-right: 6px;
    font-size: 17px;
  }
  
  .experience-table {
    display: table;
    width: 100%;
  }
  
  .experience-table tbody > tr {
    display: table-row;
  }
  
  .logo-cell {
    width: 12%;
    display: table-cell;
    padding: 6px 8px;
    vertical-align: middle;
  }
  
  .exp-details {
    width: 88%;
    display: table-cell;
    padding: 6px 8px;
    vertical-align: middle;
  }
  
  .exp-meta {
    flex-direction: row;
    justify-content: space-between;
    margin-bottom: 5px;
    font-size: 13px;
  }
  
  .logo-container {
    height: 90px;
    width: 100%;
    margin-bottom: 0;
    display: flex;
    align-items: center;
    justify-content: center;
  }
  
  .logo-container img {
    max-height: 80px;
    width: auto;
    height: auto;
    object-fit: contain;
  }
  
  .research-table {
    display: table;
    width: 100%;
  }
  
  .research-table tbody.research-item > tr {
    display: table-row;
  }
  
  .research-img {
    width: 45%;
    display: table-cell;
    padding: 8px;
    vertical-align: middle;
  }
  
  .research-details {
    width: 55%;
    display: table-cell;
    padding: 8px;
    vertical-align: middle;
  }
  
  .img-hover-container {
    max-width: 100%;
    margin: 0;
    transform: none;
  }
  
  .research-details h3 {
    font-size: 17px;
    margin: 0 0 6px;
  }
  
  .authors {
    font-size: 14px;
    margin: 6px 0;
  }
  
  .pub-info {
    font-size: 14px;
    margin: 6px 0;
  }
  
  .links {
    margin: 10px 0;
  }
  
  .links a {
    font-size: 14px;
    margin-right: 8px;
  }
  
  .research-details p {
    font-size: 14px;
    margin-top: 10px;
  }
  
  .news-list li {
    font-size: 14px;
    padding: 5px 0;
  }
  
  .exp-details h3 {
    font-size: 17px;
    margin: 0 0 3px;
  }
  
  .exp-details p {
    font-size: 14px;
    margin: 5px 0;
  }
  
  .misc {
    margin-bottom: 15px;
  }
  
  .misc p {
    font-size: 14px;
  }
  
  .misc-bullets {
    font-size: 14px;
    padding-left: 15px;
    margin: 0 0 15px;
  }
  
  .misc-bullets li {
    margin: 4px 0;
  }
  
  .misc-subtitle {
    font-size: 14px;
  }
}

/* ---------------------------------------------------------------
   Additions for this site (not part of the original template)
   --------------------------------------------------------------- */

/* Call-out line in the bio (e.g. "seeking a Ph.D. position").
   Uses the steel-blue accent so it reads as a separate voice from the
   burgundy links rather than competing with them. */
.highlight-note {
  color: var(--secondary-color);
  font-weight: 600;
}

/* WeChat QR pop-up. Pure CSS via :target — no JavaScript.
   Hidden by default; shown when the URL hash matches its id. */
.qr-modal {
  display: none;
}

.qr-modal:target {
  display: flex;
  position: fixed;
  top: 0;
  right: 0;
  bottom: 0;
  left: 0;
  z-index: 1000;
  align-items: center;
  justify-content: center;
  padding: 20px;
}

/* Full-bleed click target that closes the pop-up */
.qr-backdrop {
  position: absolute;
  top: 0;
  right: 0;
  bottom: 0;
  left: 0;
  background: rgba(0, 0, 0, 0.55);
  cursor: default;
}

.qr-card {
  position: relative;
  background: #fff;
  padding: 18px;
  border-radius: 12px;
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.25);
  text-align: center;
  max-width: 90vw;
}

.qr-card img {
  display: block;
  width: 260px;
  max-width: 70vw;
  height: auto;
  margin: 0 auto;
}

.qr-card p {
  margin: 12px 0 0;
  font-size: 13px;
  color: var(--muted-color);
}

.qr-dismiss {
  position: absolute;
  top: 6px;
  right: 12px;
  font-size: 22px;
  line-height: 1;
  color: var(--muted-color);
  text-decoration: none;
}

.qr-dismiss:hover {
  color: var(--primary-color);
}