/* --------------------------------------------------------------------------
   Mobile / small screens: readable layout, no horizontal drift, notch safe area
   -------------------------------------------------------------------------- */


/* Theme color palette ---------------------------------------------------- */
:root {
  /* Core theme blues */
  --k-primary: #2a5686;
  --k-primary-light: #2f5f93;
  --k-primary-dark: #234d7b;
  --k-link: #245f72;
  --k-link-hover: #2f73bc;
  --k-accent: #5f86c9;
  --k-accent-hover: #4a73be;

  /* Text and heading colors */
  --k-text: #334155;
  --k-text-soft: #415a77;
  --k-text-muted: #4f6685;
  --k-heading: #102a43;
  --k-heading-secondary: #1b2a41;
  --k-title: #1f4f84;
  --k-title-deep: #1f3c68;

  /* Surface / background colors */
  --k-surface: #ffffff;
  --k-surface-gradient: linear-gradient(180deg, #f8fbff 0%, #ffffff 100%);
  --k-surface-blue: #f7fbff;
  --k-surface-blue-soft: #eaf2ff;
  --k-surface-blue-light: #e8f1fb;
  --k-surface-blue-lighter: #e8f0fc;
  --k-surface-highlight: #f3f8ff;
  --k-surface-active: #e8f0fc;

  /* Card border colors */
  --k-card-border: #dce9f8;
  --k-card-border-strong: #5f86c9;
  --k-card-border-light: #e7eef6;
  --k-card-border-lighter: #deebf8;
  --k-card-border-muted: #d3e1f2;
  --k-card-border-section: #dbe7f6;

  /* Highlight accent color */
  --k-highlight: #1f4e8c;

  /* Rose / active state */
  --k-rose: #a63d4a;
  --k-rose-hover: #c75f6c;
  --k-rose-border: rgba(232, 176, 182, 0.95);
  --k-rose-bg: #fceaeb;

  /* CCF rank badge colors */
  --k-ccf-a: #9f2020;
  --k-ccf-a-bg: #ffe8e8;
  --k-ccf-a-border: #ffb6b6;
  --k-ccf-b: #935b00;
  --k-ccf-b-bg: #fff3df;
  --k-ccf-b-border: #ffd397;
  --k-ccf-c: #1e6f35;
  --k-ccf-c-bg: #e7f6ea;
  --k-ccf-c-border: #bce6c4;

  /* Shared UI tokens */
  --k-radius: 12px;
  --k-radius-pill: 999px;
  --k-shadow-sm: 0 1px 3px rgba(37, 64, 108, 0.08);
  --k-shadow-md: 0 2px 8px rgba(37, 64, 108, 0.08);
  --k-shadow-lg: 0 6px 16px rgba(37, 64, 108, 0.12);
  --k-transition-fast: 0.15s ease;
  --k-transition-base: 0.2s ease;
  --k-focus-ring: 2px solid #3b6ea5;
}


html {
  font-size: 15px;
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
  scroll-behavior: smooth;
}

:focus-visible {
  outline: var(--k-focus-ring);
  outline-offset: 2px;
}

body {
  padding-left: env(safe-area-inset-left, 0);
  padding-right: env(safe-area-inset-right, 0);
}

/* Let theme #main max-width match .masthead__inner-wrap ($large 925px → $x-large 1280px).
   Do not set a larger #main only — the nav stays narrow/centered while the body spreads left. */
#main {
  min-width: 0;
  overflow-x: hidden;
  margin-left: auto;
  margin-right: auto;
}

/* Below theme $large (925px): stack sidebar + article; avoid float/sticky overlap on phones */
@media screen and (max-width: 924px) {
  #main {
    display: flex;
    flex-direction: column;
    align-items: stretch;
  }

  /* Sidebar (author) first, article below — single column */
  #main .sidebar {
    float: none !important;
    width: 100% !important;
    max-width: 100% !important;
    margin-left: 0 !important;
    margin-right: 0 !important;
    margin-bottom: 1rem;
    position: relative !important;
    top: auto !important;
    z-index: auto;
    order: 1;
  }

  #main .page {
    float: none !important;
    clear: both !important;
    width: 100% !important;
    max-width: 100% !important;
    margin-left: 0 !important;
    margin-right: 0 !important;
    padding-left: 0 !important;
    padding-right: 0 !important;
    order: 2;
  }

  /* Keep related / archive main column after sidebar (default order:0 would float above) */
  #main > .page__related {
    order: 3;
  }

  #main > .archive {
    order: 2;
  }

  /* Author card: drop table-cell row so content doesn’t sit beside the main column */
  #main .sidebar .author__avatar {
    display: block !important;
    width: 100% !important;
    text-align: center;
  }

  #main .sidebar .author__avatar img {
    margin-left: auto;
    margin-right: auto;
  }

  #main .sidebar .author__content {
    display: block !important;
    width: 100% !important;
    padding-left: 0 !important;
    padding-right: 0 !important;
  }

  #main .sidebar .author__urls-wrapper {
    display: block !important;
    width: 100% !important;
  }

  /*
   * Mobile: photo + name/affiliation/bio always visible; chevron toggles contact & links only
   */
  #main .sidebar .author-profile__links-toggle-input {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
  }

  #main .sidebar .author-profile-root {
    width: 100%;
    max-width: 100%;
    box-sizing: border-box;
  }

  #main .sidebar .author-profile__mobile-bar {
    display: flex;
    align-items: flex-start;
    justify-content: flex-start;
    gap: 0.45rem;
    flex-wrap: nowrap;
    width: 100%;
    max-width: 100%;
    box-sizing: border-box;
    margin-bottom: 0.35rem;
  }

  #main .sidebar .author-profile__mobile-bar .author__avatar {
    display: flex !important;
    flex: 0 0 auto;
    min-width: 0;
    width: auto !important;
    max-width: none !important;
    align-items: flex-start;
    justify-content: flex-start;
    text-align: left;
    vertical-align: top;
    padding-top: 0.1rem;
  }

  #main .sidebar .author-profile__mobile-bar .author__avatar img,
  #main .sidebar .author-profile__mobile-bar img.author__avatar {
    display: block;
    max-width: min(112px, 32vw) !important;
    width: min(112px, 32vw) !important;
    height: auto !important;
    margin-left: 0 !important;
    margin-right: 0 !important;
    border-radius: 14px;
  }

  #main .sidebar .author-profile__mobile-bar .author__content {
    display: block !important;
    flex: 1 1 0;
    min-width: 0;
    width: auto !important;
    max-width: 100%;
    margin-top: 0 !important;
    padding: 0 !important;
    text-align: left;
    background: transparent !important;
    border: none !important;
    box-shadow: none !important;
  }

  #main .sidebar .author-profile__mobile-bar .author__name {
    font-size: 0.99rem;
    margin: 0 0 0.2rem;
    line-height: 1.25;
  }

  #main .sidebar .author-profile__mobile-bar .author__name-sub {
    font-size: 0.9em;
  }

  #main .sidebar .author-profile__mobile-bar .author__affiliation,
  #main .sidebar .author-profile__mobile-bar .author__bio {
    margin: 0.15rem 0 0;
    font-size: 0.82rem;
    line-height: 1.38;
    font-weight: 600;
    color: #486581;
  }

  #main .sidebar .author-profile__mobile-bar .author__bio {
    margin-top: 0.25rem;
  }

  #main .sidebar .author-profile__mobile-bar .author__pronouns {
    margin: 0.2rem 0 0;
    font-size: 0.78rem;
  }

  #main .sidebar .author-profile__expand-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    flex: 0 0 auto;
    align-self: flex-start;
    margin-top: 0.15rem;
    min-width: 3.5rem;
    min-height: 3.5rem;
    padding: 0.45rem;
    border: 1px solid #e2e8f0;
    border-radius: 12px;
    background: linear-gradient(180deg, #f8fbff 0%, #f1f5f9 100%);
    color: #334e68;
    font-size: 1.2rem;
    line-height: 1;
    box-shadow: 0 1px 3px rgba(37, 64, 108, 0.08);
    cursor: pointer;
    -webkit-tap-highlight-color: transparent;
    transition: background 0.15s ease, border-color 0.15s ease, color 0.15s ease;
  }

  #main .sidebar .author-profile__expand-btn i {
    line-height: 1;
    transition: transform 0.2s ease;
  }

  #main .sidebar .author-profile__expand-btn:hover {
    border-color: #c7d7ec;
    background: var(--k-surface);
  }

  #main .sidebar .author-profile__links-toggle-input:focus + .author-profile__mobile-bar .author-profile__expand-btn {
    outline: 2px solid #3b6ea5;
    outline-offset: 2px;
  }

  #main .sidebar .author-profile__links-toggle-input:checked + .author-profile__mobile-bar .author-profile__expand-btn {
    background: var(--k-surface-blue-lighter);
    border-color: #b8cce8;
    color: var(--k-highlight);
  }

  #main .sidebar .author-profile__links-toggle-input:checked + .author-profile__mobile-bar .author-profile__expand-btn i {
    transform: rotate(180deg);
  }

  #main .sidebar .author-profile__expand-panel.author-profile__urls-panel {
    display: none;
    margin-top: 0.35rem;
  }

  #main .sidebar .author-profile__links-toggle-input:checked ~ .author-profile__expand-panel {
    display: block;
  }
}

/* Desktop / tablet wide: stacked avatar, text, links — no fold */
@media screen and (min-width: 925px) {
  .sidebar .author-profile__links-toggle-input {
    display: none !important;
  }

  .sidebar .author-profile__expand-btn {
    display: none !important;
  }

  .sidebar .author-profile__mobile-bar {
    display: block;
    margin-bottom: 0;
    text-align: center;
  }

  .sidebar .author-profile__mobile-bar .author__content {
    margin-top: 0.75rem !important;
    text-align: left;
    background: transparent !important;
    border: none !important;
    border-radius: 0 !important;
    padding: 0.35rem 0 0 !important;
    box-shadow: none;
  }

  .sidebar .author-profile__mobile-bar .author__name {
    font-size: inherit;
  }

  /* Same size for affiliation lines + Assistant Professor; college line spaced below university */
  .sidebar .author-profile__mobile-bar .author__affiliation,
  .sidebar .author-profile__mobile-bar .author__bio {
    font-size: 0.84rem;
    line-height: 1.42;
    letter-spacing: 0.01em;
    font-weight: 600;
    color: #486581;
  }

  .sidebar .author-profile__mobile-bar .author__bio {
    margin-top: 0.35rem;
  }

  .sidebar .author-profile__mobile-bar .author__affiliation-line--1 + .author__affiliation-line--2 {
    margin-top: 0.45rem;
  }

  .sidebar .author-profile__expand-panel.author-profile__urls-panel {
    display: block !important;
    margin-top: 0.65rem;
  }
}

/* Do not cap .page width: theme uses float:right + ~83% width; a fixed max-width
   leaves a large empty band between the sidebar and the content card on wide screens. */
.page {
  min-width: 0;
}

.page__content {
  overflow-wrap: anywhere;
  word-wrap: break-word;
}

.page__content img,
.page__content svg,
.page__content video {
  max-width: 100%;
  height: auto;
}

.page__inner-wrap {
  background: var(--k-surface);
  border: 1px solid #e8edf4;
  border-radius: 16px;
  box-shadow: 0 8px 30px rgba(37, 64, 108, 0.08);
  padding: 1.22rem 1.25rem;
}

/* Home (/) and About CN: let the white card fill the text column like other pages.
   The old 50rem cap + margin-right:auto left dead space on the right at wide screens. */
@media screen and (min-width: 925px) {
  article.page .page__inner-wrap:has(.about-en-page),
  article.page .page__inner-wrap:has(.news-cn-block) {
    max-width: 100%;
  }
}

.page__title {
  color: var(--k-heading-secondary);
  font-weight: 800;
  line-height: 1.25;
  padding-bottom: 0.55rem;
  margin-bottom: 0.85rem;
  display: block;
  width: 100%;
  border-bottom: none !important;
}

.page__title .page-title-cn {
  font-size: 0.56em;
  font-weight: 600;
  color: #5f7ea6;
  margin-left: 0.28rem;
  vertical-align: middle;
}

.page__content {
  color: var(--k-text);
}

.page__content p {
  line-height: 1.6;
  margin: 0 0 0.65rem;
  text-align: justify;
  text-justify: inter-word;
  -webkit-hyphens: auto;
  hyphens: auto;
}

.home-intro p,
.home-block p {
  text-align: justify;
  text-justify: inter-word;
  line-height: 1.68;
}

.home-intro p {
  hyphens: auto;
  -webkit-hyphens: auto;
}

/* Keep final word + period together (avoids lone “.” on a line under justified text) */
.home-intro .home-intro-no-orphan {
  white-space: nowrap;
}

.home-block ul {
  margin: 0.2rem 0 0;
  padding-left: 1.1rem;
}

/* News uses .news-list with date column — no extra list indent */
.home-block ul.news-list {
  padding-left: 0;
  margin-left: 0;
}

.page__content h2 {
  margin-top: 1.2rem;
  margin-bottom: 0.55rem;
  font-size: 1.4rem;
  color: var(--k-heading);
  padding-bottom: 0.45rem;
  display: block;
  width: 100%;
  border-bottom: none !important;
}

/* Fixed thick segment (11rem) + full-width thin rule — keep above theme resets */
article.page .page__inner-wrap header .page__title,
.archive > .page__title,
.page__content h2 {
  border-bottom: none !important;
  background:
    linear-gradient(var(--k-primary), var(--k-primary)) 0 100% / 11rem 3px no-repeat,
    linear-gradient(to right, rgba(42, 86, 134, 0.42), rgba(42, 86, 134, 0.42)) 0 100% / 100% 1px no-repeat !important;
}

.page__content a {
  color: var(--k-link);
  text-underline-offset: 2px;
  transition: color var(--k-transition-fast);
}

.page__content a:hover {
  color: var(--k-link-hover);
  text-decoration: underline;
}

.home-intro,
.home-block {
  background: transparent;
  border: none;
  border-radius: 0;
  padding: 0;
  margin: 0.55rem 0 0.85rem;
}

.home-intro {
  text-align: justify;
  text-justify: inter-word;
  -webkit-hyphens: auto;
  hyphens: auto;
  padding: 1rem 1.1rem;
  background: var(--k-surface-gradient);
  border: 1px solid var(--k-card-border);
  border-left: 4px solid var(--k-accent);
  border-radius: var(--k-radius);
  box-shadow: var(--k-shadow-md);
}

.home-intro p {
  margin-bottom: 0.6rem;
}

.home-intro p:last-of-type {
  margin-bottom: 0;
}

.home-highlight {
  text-align: left;
  margin-top: 0.5rem;
  padding: 0.5rem 0 0.5rem 0.85rem;
  border-radius: 0;
  border: none;
  border-left: 4px solid var(--k-highlight);
  background: rgba(237, 245, 255, 0.72);
  color: var(--k-title-deep);
  font-weight: 600;
}

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

.news-list li {
  margin: 0.35rem 0;
  padding: 0;
  border: 0;
  background: transparent;
  line-height: 1.55;
  text-align: justify;
  text-justify: inter-word;
  -webkit-hyphens: auto;
  hyphens: auto;
  /* .page__content uses overflow-wrap:anywhere — too aggressive for prose; prefer normal word breaks */
  overflow-wrap: normal;
  word-break: normal;
}

.news-list li strong {
  color: #1f2937;
  font-weight: 700;
}

.news-list li > strong {
  display: inline-block;
  min-width: 4.5rem;
  color: var(--k-title) !important;
  vertical-align: top;
}

@media screen and (min-width: 925px) {
  .home-block .news-list li > strong:first-of-type,
  .news-cn-block .news-list li > strong:first-of-type {
    white-space: nowrap;
  }
}

/* Bullet before date for a cleaner visual column */
.news-list li > strong:first-of-type::before {
  content: '\2022';
  display: inline-block;
  width: 0.5em;
  margin-right: 0.28em;
  color: var(--k-accent);
  font-weight: 700;
  line-height: 1;
}

.news-list li strong:not(:first-of-type) {
  color: #1f2937 !important;
}

/* Chinese news block: tighter date width to avoid awkward wrap */
.news-cn-block .news-list {
  padding-left: 0 !important;
  margin-left: 0 !important;
}

.news-cn-block .news-list li {
  text-indent: 0 !important;
}

.news-cn-block .news-list li > strong {
  display: inline !important;
  min-width: 0 !important;
  margin-right: 0.12rem;
}

/* English homepage: justify paragraphs only — lists look bad with full justification */
.about-en-page p {
  text-align: justify;
  text-justify: inter-word;
}

.news-list li a {
  vertical-align: baseline;
}

@media (max-width: 640px) {
  .news-list li > strong {
    min-width: 4.1rem;
  }
}

.news-more {
  margin-top: 0.65rem;
}

.news-more summary {
  cursor: pointer;
  color: var(--k-link);
  font-weight: 700;
  list-style: none;
  display: inline-block;
  border: 1px solid var(--k-card-border);
  background: var(--k-surface-highlight);
  border-radius: var(--k-radius-pill);
  padding: 0.3rem 0.85rem;
  text-decoration: none;
  box-shadow: var(--k-shadow-sm);
  transition: background var(--k-transition-fast), border-color var(--k-transition-fast), color var(--k-transition-fast), transform var(--k-transition-fast);
}

.news-more summary:hover {
  background: var(--k-surface-blue-soft);
  border-color: var(--k-card-border-strong);
  color: var(--k-link-hover);
  transform: translateY(-1px);
}

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

.news-more[open] summary {
  background: var(--k-surface-blue-lighter);
  border-color: var(--k-card-border-muted);
  color: var(--k-link-hover);
}

.news-more summary:focus-visible {
  outline: var(--k-focus-ring);
  outline-offset: 2px;
}

.news-more > ul.news-list {
  margin-top: 0.55rem;
}

.tag-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.38rem;
  margin-top: 0.35rem;
}

/* About: research interests — use full column width, larger chips (section felt too narrow) */
.home-block:has(> .tag-list) {
  width: 100%;
  max-width: 100%;
  margin-top: 0.5rem;
  margin-bottom: 1rem;
}

.home-block:has(> .tag-list) .tag-list {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(15.5rem, 1fr));
  gap: 0.55rem 0.65rem;
  margin-top: 0.2rem;
}

.tag-list span {
  display: inline-block;
  border-radius: 999px;
  border: none;
  background: rgba(232, 240, 252, 0.85);
  color: #2c4a72;
  font-size: 0.92rem;
  padding: 0.2rem 0.55rem;
}

.home-block:has(> .tag-list) .tag-list span {
  display: block;
  width: 100%;
  text-align: center;
  font-size: 1.05rem;
  font-weight: 600;
  line-height: 1.35;
  padding: 0.52rem 0.85rem;
  border-radius: var(--k-radius);
  border: 1px solid rgba(42, 86, 134, 0.14);
  background: linear-gradient(180deg, var(--k-surface-highlight) 0%, var(--k-surface-blue-light) 100%);
  box-sizing: border-box;
  transition: transform var(--k-transition-base), box-shadow var(--k-transition-base), border-color var(--k-transition-base), background var(--k-transition-base);
  cursor: default;
}

.home-block:has(> .tag-list) .tag-list span:hover {
  transform: translateY(-2px);
  border-color: var(--k-card-border-strong);
  background: linear-gradient(180deg, var(--k-surface) 0%, var(--k-surface-highlight) 100%);
  box-shadow: var(--k-shadow-lg);
}

.student-list {
  list-style: none;
  margin: 0.3rem 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0.62rem;
}

.student-list li {
  display: block;
  padding: 0.62rem 0.72rem;
  padding-left: 3rem;
  border: 1px solid var(--k-card-border);
  border-left: 4px solid var(--k-accent);
  border-radius: 10px;
  background: var(--k-surface-gradient);
  box-shadow: 0 2px 8px rgba(37, 64, 108, 0.06);
  position: relative;
  transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
  cursor: pointer;
}

.student-list li:hover {
  transform: translateY(-2px);
  box-shadow: var(--k-shadow-lg);
  border-color: var(--k-card-border-muted);
  border-left-color: var(--k-accent-hover);
}

.student-list li:hover::before {
  transform: scale(1.08);
  box-shadow: 0 4px 10px rgba(30, 61, 110, 0.28);
}

.student-list li:last-child {
  border-bottom: 1px solid var(--k-card-border);
}

.student-list li strong {
  color: var(--k-heading-secondary);
  font-size: 0.98rem;
}

.student-list li.female::before {
  content: "👩‍🎓";
}

.student-list li::before {
  content: "👨‍🎓";
  position: absolute;
  left: 0.72rem;
  top: 0.64rem;
  width: 1.7rem;
  height: 1.7rem;
  border-radius: 999px;
  background: linear-gradient(135deg, var(--k-accent-hover) 0%, #6e96dc 100%);
  border: 1px solid #3f68af;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.88rem;
  color: var(--k-surface);
  box-shadow: 0 2px 6px rgba(30, 61, 110, 0.2);
  line-height: 1;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.student-list li span {
  display: block;
  margin-top: 0.16rem;
  color: var(--k-text-muted);
  font-size: 0.92rem;
}

@media (max-width: 1100px) {
  .student-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 800px) {
  .student-list {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) {
  .page__inner-wrap {
    border-radius: 12px;
    padding: 1rem 0.9rem;
  }

  .page__content h2 {
    font-size: 1.25rem;
  }
}

/* Top navigation — solid bar (参考学术主页常见顶栏) */
.masthead {
  border-bottom: 1px solid #274c77;
  background: linear-gradient(180deg, var(--k-primary-light) 0%, var(--k-primary) 55%, var(--k-primary-dark) 100%);
  box-shadow: 0 1px 0 rgba(255, 255, 255, 0.12) inset, 0 2px 8px rgba(16, 34, 54, 0.22);
}

.masthead__inner-wrap {
  font-size: 1.08rem;
}

/* Center the title + nav links as a group on wide screens (below $large the
   mobile bar keeps its own left-aligned layout). greedy-nav keeps full width so
   its overflow detection still works; only its content is centered. */
@media screen and (min-width: 925px) {
  .masthead__inner-wrap {
    display: flex;
    justify-content: center;
  }

  .masthead__menu {
    width: 100%;
  }

  .greedy-nav {
    display: flex;
    align-items: center;
    justify-content: center;
  }
}

.greedy-nav {
  background: transparent;
  font-size: 1em;
}

.greedy-nav a {
  font-size: 1.16em;
  color: var(--k-surface-highlight);
  font-weight: 600;
}

.greedy-nav a:hover {
  color: #d6eaff;
}

.greedy-nav button {
  color: var(--k-surface);
  border: 1px solid rgba(226, 238, 255, 0.55);
  border-radius: 8px;
  background: rgba(21, 49, 82, 0.35);
}

.greedy-nav button:hover {
  background: rgba(21, 49, 82, 0.55);
}

.greedy-nav .hidden-links {
  border: 1px solid #2a588d;
  border-radius: 10px;
  background: #2b5a8f;
  box-shadow: 0 8px 18px rgba(16, 34, 54, 0.28);
  overflow: hidden;
}

.greedy-nav .hidden-links a {
  font-size: 1em;
  color: #f4f8ff;
}

.greedy-nav .hidden-links a:hover {
  background: #234d7a;
  color: var(--k-surface);
}

.masthead__menu-item--lg a {
  color: var(--k-surface);
  font-weight: 800;
  letter-spacing: 0.2px;
  font-size: 1.12rem;
}

.masthead__menu-item--lg {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  white-space: nowrap;
}

.masthead__menu-item--lg > a {
  display: inline-block;
}

.masthead__lang-switch {
  margin-left: 0.1rem;
  /* Fixed size: do not inherit .greedy-nav a scaling — keeps 中文 / EN visually even */
  font-size: 0.78rem;
  color: #d7e7fb;
  white-space: nowrap;
  display: inline-flex;
  align-items: center;
  line-height: 1;
}

/* EN uses <a class="lang-link"> — neutralize .greedy-nav a { font-size: 1.05em } here */
.greedy-nav .masthead__lang-switch .lang-link {
  font-size: 1em !important;
}

.masthead__lang-switch i {
  margin-right: 0.2rem;
  opacity: 0.9;
}

.masthead__lang-switch .lang-link {
  color: #e8f2ff;
  font-weight: 500;
  text-decoration: none;
}

.masthead__lang-switch .lang-link:hover {
  color: var(--k-surface);
}

.masthead__lang-switch .lang-current {
  font-size: 1em;
  color: var(--k-surface);
  font-weight: 700;
}

.masthead__lang-switch .lang-sep {
  margin: 0 0.3rem;
  opacity: 0.75;
}

.masthead__lang-switch i.fa-solid,
.masthead__lang-switch .fa-solid {
  font-family: 'Font Awesome 6 Free' !important;
  font-weight: 900;
  font-style: normal !important;
}

/* Sidebar + main column: match theme $large breakpoint (57.8125em ≈ 925px at 16px reference) */
@media screen and (min-width: 57.8125em) {
  /* Less outer padding + top gap so the block doesn’t sit right of a wide blank stripe.
     Left padding larger than right so the content block sits slightly right of center. */
  #main {
    padding-left: 1.5em !important;
    padding-right: 0.3em !important;
    margin-top: 1.35em !important;
  }

  .sidebar.sticky {
    top: 1.1rem;
  }

  /* Wider author column (theme default ~15.25% × ~2 cols); tune width / page together ≈ 100% */
  #main > .sidebar.sticky,
  #main > .sidebar {
    float: left !important;
    margin-left: 0 !important;
    margin-right: 1.25% !important;
    padding-left: 1.5rem !important;
    width: 16% !important;
    min-width: 11.5rem !important;
    max-width: none !important;
  }

  #main > .page,
  #main > .archive {
    float: right !important;
    padding-left: 0.55% !important;
    padding-right: 0.55% !important;
    width: 82.75% !important;
    max-width: none !important;
  }

  #main > .page__related {
    margin-left: 27.85% !important;
  }

  /* Slightly larger type in the author column (links + body text inherit base) */
  #main .sidebar {
    font-size: 1.055rem;
  }

  #main .sidebar .author__name {
    font-size: 1.11rem;
  }

  #main .sidebar .author__name-sub {
    font-size: 0.94em;
  }

  #main .sidebar .author__affiliation {
    font-size: 0.94rem;
  }

  #main .sidebar .author__bio {
    font-size: 0.9rem;
  }

  #main .sidebar .author__urls li,
  #main .sidebar .author__urls li a {
    font-size: 0.98rem;
  }
}

.author__avatar img,
img.author__avatar {
  border-radius: 10px;
  border: 1px solid rgba(15, 42, 67, 0.08);
  box-shadow: none;
}

.author__content,
.author__urls-wrapper {
  background: transparent;
  border: none;
  border-radius: 0;
  padding: 0.35rem 0;
}

.author__content {
  margin-top: 0.8rem;
}

.author__name {
  color: var(--k-heading);
  margin-bottom: 0.25rem;
  line-height: 1.25;
}

.author__name-sub {
  display: block;
  margin-top: 0.15rem;
  font-size: 0.92em;
  color: #486581;
  font-weight: 700;
}

.author__affiliation {
  margin: 0.4rem 0 0;
  font-size: 0.88rem;
  font-weight: 600;
  line-height: 1.45;
  color: #486581;
  word-break: break-word;
  overflow-wrap: anywhere;
}

.author__affiliation-line {
  display: block;
}

/* Space between university line and college line (school vs department) */
.author__affiliation-line--1 + .author__affiliation-line--2 {
  margin-top: 0.4rem;
}

.author__bio {
  color: #4b5563;
}

.author__urls-wrapper .btn {
  display: none;
}

.author__urls {
  margin: 0;
  padding: 0;
}

/* _sidebar.scss sets z-index:-1 for the Follow dropdown; list can sit under opaque fills — fix all breakpoints */
.sidebar .author__urls {
  z-index: 0;
}

.author__urls li {
  display: flex;
  align-items: center;
  gap: 0.34rem;
  margin: 0;
  padding: 0.22rem 0;
  line-height: 1.35;
  color: #334e68;
}

.author__urls li a {
  color: var(--k-link);
  display: flex;
  align-items: center;
  gap: 0.34rem;
  line-height: 1.35;
  width: 100%;
}

.author__urls li a:hover {
  color: #4b5cc4;
}

.author__urls .icon-pad-right {
  width: 1.2rem;
  min-width: 1.2rem;
  text-align: center;
  margin-right: 0;
  line-height: 1;
  flex-shrink: 0;
}

/* Restore icon fonts inside sidebar links (wrapper/text inherits sans-serif) */
.author__urls i.ai,
.author__urls .ai {
  font-family: 'Academicons', serif !important;
  font-style: normal !important;
  font-weight: 400 !important;
}

/* ORCID brand green → same as sidebar link / theme blue */
.author__urls i.ai-orcid,
.author__urls .ai-orcid {
  color: var(--k-link) !important;
}

.author__urls li a:hover i.ai-orcid,
.author__urls li a:hover .ai-orcid {
  color: #4b5cc4 !important;
}

/* GitHub brand black → theme link blue (sidebar only) */
.author__urls i.fa-github,
.author__urls .fa-github {
  color: var(--k-link) !important;
}

.author__urls li a:hover i.fa-github,
.author__urls li a:hover .fa-github {
  color: #4b5cc4 !important;
}

.author__urls i.fas,
.author__urls i.fa-solid,
.author__urls .fas,
.author__urls .fa-solid {
  font-family: 'Font Awesome 6 Free' !important;
  font-style: normal !important;
  font-weight: 900 !important;
}

.author__urls i.far,
.author__urls i.fa-regular,
.author__urls .far {
  font-family: 'Font Awesome 6 Free' !important;
  font-style: normal !important;
  font-weight: 400 !important;
}

.author__urls i.fab,
.author__urls i.fa-brands,
.author__urls .fab {
  font-family: 'Font Awesome 6 Brands' !important;
  font-style: normal !important;
  font-weight: 400 !important;
}

/* Publication list cards on archive pages */
.layout--archive .page__content > ul {
  list-style: none;
  margin: 0.45rem 0 0;
  padding: 0;
}

.layout--archive .page__content > ul > li {
  margin: 0.75rem 0;
  padding: 0.82rem 0.9rem;
  border: 1px solid var(--k-card-border-light);
  border-left: 4px solid #d0def0;
  border-radius: 12px;
  background: linear-gradient(180deg, #fbfdff 0%, var(--k-surface) 100%);
  box-shadow: 0 2px 10px rgba(37, 64, 108, 0.05);
}

.layout--archive .page__content > ul > li:hover {
  border-color: var(--k-card-border-muted);
  box-shadow: 0 6px 16px rgba(37, 64, 108, 0.09);
}

.layout--archive .page__content > ul > li strong {
  color: var(--k-heading-secondary);
}

.layout--archive .page__content > p {
  margin-bottom: 0.65rem;
}

.layout--archive .page__content h2 {
  margin-top: 1.15rem;
  margin-bottom: 0.55rem;
}

.selected-pubs-list {
  list-style: none;
  margin: 0.6rem 0 1rem;
  padding: 0;
}

.pub-highlight-card {
  border: 1px solid #d9e5f5;
  border-radius: 12px;
  background: linear-gradient(180deg, var(--k-surface-blue) 0%, var(--k-surface) 100%);
  padding: 0.75rem 0.85rem;
  box-shadow: 0 2px 10px rgba(37, 64, 108, 0.06);
  margin: 0.6rem 0;
}

.pub-highlight-card:first-child {
  border: 1px solid #b9d1f1;
  background: linear-gradient(180deg, #ecf5ff 0%, var(--k-surface) 100%);
  box-shadow: 0 4px 14px rgba(37, 64, 108, 0.1);
}

.pub-highlight-card .pub-badge {
  display: inline-block;
  border-radius: 999px;
  border: 1px solid #b8d0ef;
  background: #eaf3ff;
  color: #1c4f87;
  font-weight: 700;
  font-size: 0.8rem;
  padding: 0.12rem 0.5rem;
  margin-bottom: 0.35rem;
}

.pub-highlight-card h3 {
  margin: 0.2rem 0 0.35rem;
  font-size: 1rem;
  line-height: 1.35;
  color: #12314f;
}

.pub-highlight-card p {
  margin: 0.2rem 0;
  font-size: 0.93rem;
  line-height: 1.5;
  color: var(--k-text-soft);
}

.pub-topics {
  margin: 0.1rem 0 0.25rem;
}

.pub-topics span {
  display: inline-block;
  font-size: 0.76rem;
  font-weight: 600;
  color: #325d8f;
  border: 1px solid #c8dbf4;
  background: #eef5ff;
  border-radius: 999px;
  padding: 0.06rem 0.45rem;
  margin-right: 0.24rem;
}


.corr-icon {
  display: inline-block;
  margin-left: 0.12rem;
  vertical-align: super;
  line-height: 1;
  color: #4d6f95;
  font-size: 0.66em;
}

.layout--archive .page__content > ul > li:nth-child(odd) {
  border-left-color: #bcd3ee;
  background: var(--k-surface-gradient);
}

.layout--archive .page__content li a {
  display: inline-block;
  background: linear-gradient(135deg, #2d6fc7 0%, #3f83dc 100%) !important;
  border: 1px solid #2f70c4 !important;
  border-radius: 999px;
  padding: 0.05rem 0.54rem;
  margin-right: 0.24rem;
  color: var(--k-surface) !important;
  text-decoration: none !important;
  font-size: 0.81rem;
  font-weight: 600;
  box-shadow: 0 1px 2px rgba(28, 73, 134, 0.14);
}

.layout--archive .page__content li a:hover {
  background: linear-gradient(135deg, #245fac 0%, #3575c7 100%) !important;
  border-color: #235ea9 !important;
  transform: translateY(-1px);
  color: var(--k-surface) !important;
}

.layout--archive .page__content li p {
  margin: 0.12rem 0;
  line-height: 1.42;
}

.layout--archive .page__content li p + p {
  margin-top: 0.06rem;
}

/* Google Scholar citation badges on Publications page */
.scholar-cite-count {
  display: inline-block;
  margin-left: 0.35rem;
  padding: 0.04rem 0.5rem;
  border-radius: 999px;
  background: #eef3ff;
  border: 1px solid #c8d6f5;
  color: #2f4f8f;
  font-size: 0.74rem;
  font-weight: 700;
  line-height: 1.25;
  vertical-align: baseline;
  white-space: nowrap;
}

.scholar-cite-count__link {
  color: inherit;
  text-decoration: none;
}

.scholar-cite-count__link:hover {
  color: #1f3f7a;
  text-decoration: underline;
}

.publications-cite-note {
  margin: 0.35rem 0 0.8rem;
  font-size: 0.82rem;
  color: #5f6f86;
}

/* Publications year-group consistency */
.pub-year-group {
  margin: 0.35rem 0 0.65rem;
  padding: 0;
}

.pub-year-group summary {
  cursor: pointer;
  font-weight: 700;
  color: var(--k-title);
  margin: 0;
  padding: 0.12rem 0 0.22rem;
}

.pub-year-group ul {
  list-style: none;
  margin: 0.12rem 0 0.25rem;
  padding: 0;
}

.pub-year-group li {
  margin: 0.26rem 0 !important;
  padding: 0.16rem 0.2rem !important;
}

.pub-year-group li p {
  margin: 0.03rem 0 !important;
  line-height: 1.35 !important;
}

.pub-year-group li p + p {
  margin-top: 0.03rem !important;
}

/* Force compact spacing for items inside details groups */
.layout--archive details.pub-year-group > ul {
  margin: 0.12rem 0 0.2rem !important;
  padding-left: 0 !important;
}

.layout--archive details.pub-year-group > ul > li {
  margin: 0.5rem 0 !important;
  padding: 0.1rem 0.16rem !important;
  line-height: 1.28 !important;
  border-bottom: 1px solid #edf2f8;
}

.layout--archive details.pub-year-group > ul > li > p {
  margin: 0 !important;
  line-height: 1.28 !important;
}

.layout--archive details.pub-year-group > ul > li > p + p {
  margin-top: 0.02rem !important;
}

.layout--archive details.pub-year-group > ul > li:last-child {
  border-bottom: 0;
}

/* Decorate venue tag at line beginning, e.g. NeurIPS'24 */
.layout--archive .page__content li .venue-tag,
.layout--archive .page__content li span[style*="#666699"] {
  display: inline-block;
  background: linear-gradient(135deg, #4f6fd8 0%, #6f8ef0 100%) !important;
  border: 1px solid #4d6dd4 !important;
  border-radius: 0.45rem;
  padding: 0.06rem 0.48rem;
  margin-right: 0.32rem;
  color: var(--k-surface) !important;
  font-weight: 700;
  font-size: 0.78rem;
  letter-spacing: 0.02em;
  box-shadow: 0 1px 2px rgba(45, 79, 168, 0.2) !important;
}

/* Decorate resource links such as [arxiv] [project] */
.layout--archive .page__content li a[href*="arxiv"],
.layout--archive .page__content li a[href*="openreview"],
.layout--archive .page__content li a[href*="github"],
.layout--archive .page__content li a[href*="project"],
.layout--archive .page__content li a[href*="ieeexplore"] {
  background: linear-gradient(135deg, #1f62b5 0%, #2e79d1 100%) !important;
  border-color: #1f61b3 !important;
  color: var(--k-surface) !important;
  font-weight: 600;
}

/* CCF rank tags with different colors */
.layout--archive .page__content .ccf-tag {
  display: inline-block;
  border-radius: 0.42rem;
  padding: 0.03rem 0.46rem;
  font-size: 0.74rem;
  font-weight: 700;
  letter-spacing: 0.01em;
  line-height: 1.3;
  margin-right: 0.24rem;
  vertical-align: baseline;
  border: 1px solid transparent;
}

.layout--archive .page__content .ccf-tag.ccf-a {
  background: var(--k-ccf-a-bg);
  border-color: var(--k-ccf-a-border);
  color: var(--k-ccf-a);
}

.layout--archive .page__content .ccf-tag.ccf-b {
  background: var(--k-ccf-b-bg);
  border-color: var(--k-ccf-b-border);
  color: var(--k-ccf-b);
}

.layout--archive .page__content .ccf-tag.ccf-c {
  background: var(--k-ccf-c-bg);
  border-color: var(--k-ccf-c-border);
  color: var(--k-ccf-c);
}

/* Publications page tag style - force apply without layout wrapper dependency */
.page__content .venue-tag {
  display: inline-block !important;
  background: linear-gradient(135deg, #4a67d6 0%, #6b87f0 100%) !important;
  color: var(--k-surface) !important;
  border: 1px solid #4563d0 !important;
  border-radius: 0.42rem !important;
  padding: 0.05rem 0.46rem !important;
  font-size: 0.78rem !important;
  font-weight: 700 !important;
  letter-spacing: 0.02em !important;
  margin-right: 0.32rem !important;
  vertical-align: baseline !important;
}

.page__content .ccf-tag {
  display: inline-block !important;
  border-radius: 0.42rem !important;
  padding: 0.03rem 0.44rem !important;
  font-size: 0.74rem !important;
  font-weight: 700 !important;
  line-height: 1.3 !important;
  margin: 0 0.2rem !important;
  border: 1px solid transparent !important;
}

.page__content .ccf-tag.ccf-a {
  background: #ffe5e5 !important;
  border-color: #ffb7b7 !important;
  color: #9b1f1f !important;
}

.page__content .ccf-tag.ccf-b {
  background: #fff1dc !important;
  border-color: #ffd59b !important;
  color: #915900 !important;
}

.page__content .ccf-tag.ccf-c {
  background: #e8f6e9 !important;
  border-color: #bfe6c3 !important;
  color: #1f6f36 !important;
}

.page__content .pub-year-group a,
.page__content .selected-pubs-list a {
  display: inline-block !important;
  background: linear-gradient(135deg, #1f62b5 0%, #2f79d1 100%) !important;
  border: 1px solid #1e60b2 !important;
  color: var(--k-surface) !important;
  border-radius: 999px !important;
  padding: 0.04rem 0.52rem !important;
  margin-right: 0.22rem !important;
  text-decoration: none !important;
  font-size: 0.8rem !important;
  font-weight: 600 !important;
  line-height: 1.25 !important;
}

.page__content .pub-year-group a:hover,
.page__content .selected-pubs-list a:hover {
  background: linear-gradient(135deg, #1a559f 0%, #2a6dbc 100%) !important;
  border-color: #1a549d !important;
  color: var(--k-surface) !important;
}

/* Funds page */
.funds-list {
  list-style: none;
  margin: 0.5rem 0 0;
  padding: 0;
}

.funds-list li {
  margin: 0.62rem 0;
  padding: 0.78rem 0.9rem;
  border: 1px solid var(--k-card-border-lighter);
  border-left: 4px solid var(--k-accent);
  border-radius: 10px;
  background: linear-gradient(180deg, var(--k-surface-blue) 0%, var(--k-surface) 100%);
  box-shadow: 0 2px 8px rgba(37, 64, 108, 0.06);
}

.funds-list .fund-name {
  color: #294a75;
  font-weight: 700;
  margin-bottom: 0.22rem;
}

.funds-list .fund-topic {
  color: #3d4e63;
  line-height: 1.5;
}

.funds-list .fund-period {
  display: inline-block;
  margin-top: 0.36rem;
  padding: 0.04rem 0.5rem;
  border-radius: 999px;
  background: var(--k-surface-blue-soft);
  border: 1px solid #c8dbf6;
  color: #315a8f;
  font-size: 0.8rem;
  font-weight: 600;
}

/* Teaching — index cards & single course page */
.archive > .teaching-archive__index,
.teaching-archive__index {
  display: flex !important;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.28rem 0.38rem;
  width: 100%;
  box-sizing: border-box;
  margin: 0 0 0.55rem;
  padding: 0;
  border: none;
  background: none;
  visibility: visible;
  opacity: 1;
}

.teaching-archive__index-links {
  font-size: 0.88rem;
  font-weight: 600;
}

.teaching-archive__index-links a {
  color: #1f62b5;
  text-decoration: none;
  padding: 0.02rem 0.08rem;
  border-radius: 3px;
}

.teaching-archive__index-links a:hover {
  color: #0f4a8c;
  text-decoration: underline;
  background: transparent;
}

.teaching-archive__index-link--active {
  color: var(--k-rose) !important;
  font-weight: 700;
}

.teaching-archive__index-link--active:hover {
  color: #8f3540 !important;
}

.teaching-archive__index-sep {
  margin: 0 0.12rem;
  color: #94a8c4;
  font-weight: 400;
  font-size: 0.82rem;
}

.teaching-archive {
  margin-top: 0;
}

/* Year headings: default like other sections; only --active (teaching_active_year) is “in progress” */
.teaching-archive__year {
  margin: 0.95rem 0 0.35rem;
  padding-bottom: 0.28rem;
  font-size: 1.22rem;
  color: #1d3e66;
  border-bottom: 1px solid var(--k-card-border-section);
  scroll-margin-top: 4.5rem;
}

.teaching-archive__year:first-of-type {
  margin-top: 0;
}

.teaching-archive__year--active {
  padding: 0.38rem 0.55rem 0.32rem;
  font-weight: 700;
  color: var(--k-rose);
  border-bottom: 1px solid var(--k-rose-border);
  border-radius: 10px;
  background: rgba(252, 234, 235, 0.65);
}

/* First section on page when it’s the active year (e.g. 2026 on top): no pill background */
.teaching-archive > .teaching-archive__year:first-child.teaching-archive__year--active {
  background: transparent;
  border-radius: 0;
  padding: 0 0 0.28rem;
}

/* Teaching cards: one place to tune fixed width × height (px) */
.teaching-archive__grid {
  --teaching-card-w: 360px;
  --teaching-card-h: 118px;
  display: grid;
  gap: 0.58rem;
  align-items: start;
  margin-bottom: 0.1rem;
  grid-template-columns: 1fr;
  justify-content: center;
}

@media (min-width: 720px) {
  .teaching-archive__grid {
    grid-template-columns: repeat(auto-fill, var(--teaching-card-w));
    justify-content: start;
  }
}

.teaching-archive__grid > .teaching-archive__item {
  align-self: start;
  width: 100%;
  max-width: var(--teaching-card-w);
  justify-self: center;
}

@media (min-width: 720px) {
  .teaching-archive__grid > .teaching-archive__item {
    width: var(--teaching-card-w);
    max-width: var(--teaching-card-w);
    justify-self: stretch;
  }
}

.teaching-archive__item {
  display: flex;
  flex-direction: column;
  min-height: 0;
}

.teaching-archive__item > .list__item {
  flex: 0 1 auto;
  display: flex;
  flex-direction: column;
  min-height: 0;
  width: 100%;
  /* Theme list view reserves right gutter for sidebar; teaching cards are full-width */
  padding-right: 0 !important;
  max-width: 100%;
  box-sizing: border-box;
}

.teaching-archive__item .archive__item {
  flex: 0 0 auto;
  width: 100%;
  height: var(--teaching-card-h, 135px);
  min-height: var(--teaching-card-h, 135px);
  max-height: var(--teaching-card-h, 135px);
  margin-bottom: 0 !important;
  display: flex;
  flex-direction: column;
  border: 1px solid var(--k-card-border-lighter);
  border-left: 4px solid var(--k-accent);
  border-radius: 12px;
  background: var(--k-surface-gradient);
  box-shadow: 0 2px 7px rgba(37, 64, 108, 0.05);
  padding: 0.45rem 0.6rem 0.42rem;
  box-sizing: border-box;
  overflow: hidden;
}

/*
 * In-progress term (teaching_active_year): one rose–blush palette for shell + type
 * (see _config.yml). Titles use the same hue below.
 */
.teaching-archive__item--active {
  --tp-stripe: var(--k-rose-hover);
  --tp-border: var(--k-rose-border);
  --tp-surface: linear-gradient(180deg, #fff6f7 0%, var(--k-surface) 100%);
  --tp-shadow: 0 2px 10px rgba(180, 82, 95, 0.13);
  --tp-badge-bg: var(--k-rose-bg);
  --tp-badge-border: #e8b8bf;
  --tp-badge-text: #8f3540;
  --tp-meta: #6e4e52;
  --tp-meta-icon: #c96a75;
  --tp-venue: #5c3e42;
  --tp-excerpt: #574446;
}

.teaching-archive__item--active .archive__item {
  border-color: var(--tp-border);
  border-left-color: var(--tp-stripe);
  background: var(--tp-surface);
  box-shadow: var(--tp-shadow);
}

.teaching-archive__item--active .teaching-card__type {
  background: var(--tp-badge-bg);
  border-color: var(--tp-badge-border);
  color: var(--tp-badge-text);
}

.teaching-archive__item--active .teaching-card__meta {
  color: var(--tp-meta);
}

.teaching-archive__item--active .teaching-card__loc i,
.teaching-archive__item--active .teaching-card__venue i,
.teaching-archive__item--active .teaching-card__term i {
  color: var(--tp-meta-icon);
  opacity: 1;
}

.teaching-archive__item--active .teaching-card__venue em {
  color: var(--tp-venue);
}

.teaching-archive__item--active .archive__item-excerpt,
.teaching-archive__item--active .archive__item-excerpt p {
  color: var(--tp-excerpt);
}

.teaching-archive__item .archive__item-title {
  font-size: 1.06rem;
  margin: 0 0 0.12rem;
  line-height: 1.3;
  flex: 0 0 auto;
}

.teaching-archive__item .archive__item-title a {
  color: var(--k-title);
  text-decoration: none;
  font-weight: 700;
}

.teaching-archive__item .archive__item-title a:hover {
  color: var(--k-link-hover);
  text-decoration: underline;
}

/* In-progress titles: same rose family as --tp-stripe / badge */
.teaching-archive__item.teaching-archive__item--active .archive__item-title a {
  color: var(--k-rose);
}

.teaching-archive__item.teaching-archive__item--active .archive__item-title a:hover {
  color: var(--k-rose-hover);
  text-decoration: underline;
}

.teaching-card__meta {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-start;
  gap: 0.28rem 0.55rem;
  margin: 0 0 0.18rem;
  font-size: 0.86rem;
  color: var(--k-text-soft);
  line-height: 1.38;
  flex: 0 0 auto;
}

.teaching-card__type {
  display: inline-block;
  padding: 0.04rem 0.45rem;
  border-radius: 999px;
  background: var(--k-surface-blue-soft);
  border: 1px solid #c8dbf6;
  color: #315a8f;
  font-weight: 700;
  font-size: 0.76rem;
}

.teaching-card__loc,
.teaching-card__venue,
.teaching-card__term {
  display: inline-flex;
  align-items: flex-start;
  gap: 0.28rem;
}

.teaching-card__loc i,
.teaching-card__venue i,
.teaching-card__term i {
  margin-top: 0.12rem;
  color: var(--k-accent);
  opacity: 0.95;
}

.teaching-card__venue em {
  font-style: normal;
  font-weight: 600;
  color: #334e68;
}

.teaching-archive__item .archive__item-excerpt {
  margin: 0;
  padding: 0;
  flex: 1 1 auto;
  min-height: 0;
  align-self: stretch;
  color: #3d4e63;
  line-height: 1.38;
  font-size: 0.87rem;
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
}

.teaching-archive__item .archive__item-excerpt p {
  margin: 0;
}

.teaching-archive__item .archive__item-excerpt p + p {
  margin-top: 0.28rem;
}

.teaching-archive__item .archive__item-excerpt p:last-child {
  margin-bottom: 0;
}

.teaching-page__meta {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-start;
  gap: 0.5rem 0.85rem;
  margin: 0.4rem 0 0.85rem;
  padding: 0.55rem 0.72rem;
  border-radius: 10px;
  border: 1px solid var(--k-card-border);
  background: var(--k-surface-gradient);
  font-size: 0.9rem;
  color: var(--k-text-soft);
  line-height: 1.5;
}

.teaching-page__type {
  display: inline-block;
  padding: 0.1rem 0.54rem;
  border-radius: 999px;
  background: var(--k-surface-blue-soft);
  border: 1px solid #c8dbf6;
  color: #315a8f;
  font-weight: 700;
  font-size: 0.82rem;
}

.teaching-page__loc,
.teaching-page__venue,
.teaching-page__term {
  display: inline-flex;
  align-items: flex-start;
  gap: 0.32rem;
}

.teaching-page__loc i,
.teaching-page__venue i,
.teaching-page__term i {
  margin-top: 0.14rem;
  color: var(--k-accent);
}

.teaching-page__venue em {
  font-style: normal;
  font-weight: 600;
  color: #334e68;
}

.teaching-single .page__content h3 {
  margin: 1rem 0 0.45rem;
  font-size: 1.05rem;
  color: var(--k-title);
  padding-bottom: 0.25rem;
  border-bottom: 1px solid var(--k-card-border-section);
}

.teaching-single .page__content p:first-of-type {
  margin-top: 0.35rem;
}

.teaching-single .page__content p,
.teaching-single .page__content li {
  line-height: 1.65;
}

.teaching-single .page__content ul {
  margin: 0.6rem 0 0.5rem;
  padding: 0;
  list-style: none;
}

.teaching-single .page__content ul li {
  padding: 0.5rem 0.65rem;
  margin: 0.35rem 0;
  border: 1px solid #e4edf8;
  border-radius: 8px;
  background: #fbfdff;
}

.teaching-single .page__content ul li a {
  color: #1f62b5;
  font-weight: 600;
  text-decoration: none;
}

.teaching-single .page__content ul li a:hover {
  text-decoration: underline;
}

/* Blog posts — year links only */
.archive__year-nav {
  margin: 0 0 1rem;
  font-size: 0.95rem;
  color: #315a8f;
  font-weight: 600;
}

.archive__year-nav a {
  color: #1f62b5;
  text-decoration: none;
  font-weight: 700;
}

.archive__year-nav a:hover {
  text-decoration: underline;
}

.archive__year-nav-sep {
  margin: 0 0.35rem;
  opacity: 0.7;
}

/* Blog posts page */
.layout--archive .archive__subtitle {
  margin-top: 1rem;
  margin-bottom: 0.55rem;
  padding-bottom: 0.3rem;
  color: #1d3e66;
  border-bottom: 1px solid var(--k-card-border-section);
}

.layout--archive .list__item .archive__item {
  border: 1px solid var(--k-card-border-lighter);
  border-left: 4px solid var(--k-accent);
  border-radius: 10px;
  background: var(--k-surface-gradient);
  box-shadow: 0 2px 8px rgba(37, 64, 108, 0.06);
  padding: 0.72rem 0.86rem;
  margin-bottom: 0.62rem;
}

.layout--archive .list__item .archive__item-title {
  margin: 0 0 0.2rem;
  line-height: 1.3;
}

.layout--archive .list__item .archive__item-title a {
  color: var(--k-title);
  text-decoration: none;
  font-weight: 700;
}

.layout--archive .list__item .archive__item-title a:hover {
  color: var(--k-link-hover);
  text-decoration: underline;
}

.layout--archive .list__item .page__meta {
  margin: 0.15rem 0 0.35rem;
  color: #4d6585;
  font-size: 0.84rem;
}

.layout--archive .list__item .archive__item-excerpt p {
  margin: 0;
  color: #3d4e63;
  line-height: 1.52;
}

/* Inner list pages (Publications / Funds / Teaching / Portfolio / Blog Posts / Contact):
   cap the white card width and left-align it (the card is floated, so margin:auto
   would compute to 0 anyway); the breadcrumb above shares the same left edge */
@media screen and (min-width: 925px) {
  article.page:has(.contact-card) .page__inner-wrap,
  article.page:has(.contact-card) > .breadcrumbs {
    max-width: 60rem;
  }

  .blog-card-list,
  .teaching-archive__grid {
    justify-content: start;
  }
}

/* Breadcrumbs sit above the white card on single-layout pages and inside the
   content column on archive pages; drop the old standalone full-width container
   sizing so they align with the card/title left edge */
.archive > .breadcrumbs,
.page > .breadcrumbs {
  max-width: none;
  margin: 0 0 0.3rem;
  padding: 0;
  -webkit-animation: none;
          animation: none;
}

.archive > .breadcrumbs ol,
.page > .breadcrumbs ol {
  float: none;
  width: 100%;
  margin: 0;
  padding-left: 0;
}

.blog-card-list {
  list-style: none;
  margin: 0.5rem 0 0.8rem;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.85rem;
  justify-content: start;
}

.blog-card {
  border: 1px solid var(--k-card-border);
  border-left: 4px solid var(--k-accent);
  border-radius: 12px;
  background: var(--k-surface-gradient);
  box-shadow: 0 3px 10px rgba(37, 64, 108, 0.06);
  padding: 0.8rem 0.95rem;
  width: 100%;
  height: 200px;
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.blog-card__title {
  margin: 0;
  line-height: 1.32;
  font-size: 1.05rem;
}

.blog-card__title a {
  color: var(--k-title);
  text-decoration: none;
  font-weight: 700;
}

.blog-card__title a:hover {
  color: var(--k-link-hover);
  text-decoration: underline;
}

.blog-card__meta {
  display: inline-block;
  margin-top: 0.32rem;
  padding: 0.02rem 0.46rem;
  border-radius: 999px;
  background: var(--k-surface-blue-soft);
  border: 1px solid #c8dbf6;
  color: #315a8f;
  font-size: 0.78rem;
  font-weight: 600;
}

.blog-card__excerpt {
  margin: 0.5rem 0 0;
  flex: 1 1 auto;
  color: #3d4e63;
  line-height: 1.52;
  overflow: hidden;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
}

.blog-card__link {
  display: inline-block;
  border-radius: 999px;
  background: linear-gradient(135deg, #1f62b5 0%, #2f79d1 100%);
  border: 1px solid #1e60b2;
  color: var(--k-surface);
  text-decoration: none;
  font-size: 0.8rem;
  font-weight: 600;
  padding: 0.05rem 0.56rem;
  margin-top: 0.5rem;
  align-self: flex-start;
  flex: 0 0 auto;
}

.blog-card__link:hover {
  background: linear-gradient(135deg, #1a559f 0%, #2a6dbc 100%);
  border-color: #1a549d;
  color: var(--k-surface);
}

/* Contact page */
.contact-card {
  margin-top: 0.55rem;
  border: 1px solid var(--k-card-border-lighter);
  border-left: 4px solid var(--k-accent);
  border-radius: 12px;
  background: var(--k-surface-gradient);
  box-shadow: 0 3px 10px rgba(37, 64, 108, 0.06);
  padding: 0.8rem 0.95rem;
}

.contact-row {
  padding: 0.42rem 0;
  border-bottom: 1px dashed #d8e5f4;
}

.contact-row:last-child {
  border-bottom: 0;
}

.contact-label {
  display: inline-block;
  min-width: 6.2rem;
  color: var(--k-title);
  font-weight: 700;
}

.contact-value {
  color: #3d4e63;
}

.contact-value a {
  color: var(--k-link);
  text-decoration: none;
}

.contact-value a:hover {
  color: var(--k-link-hover);
  text-decoration: underline;
}

.contact-row--qr {
  align-items: flex-start;
}

.contact-qr-block {
  margin-top: 0.75rem;
  text-align: center;
}

.contact-qr-title {
  display: inline-block;
  margin-bottom: 0.4rem;
  color: var(--k-title);
  font-weight: 700;
}

.contact-qr {
  display: block;
  width: 200px;
  max-width: 100%;
  border-radius: 10px;
  border: 1px solid #d7e6f8;
  box-shadow: 0 2px 8px rgba(37, 64, 108, 0.08);
  margin: 0 auto;
}

/* Portfolio page */
.portfolio-single-card {
  margin-top: 0.65rem;
  border: 1px solid var(--k-card-border);
  border-left: 4px solid var(--k-accent);
  border-radius: 12px;
  background: var(--k-surface-gradient);
  box-shadow: 0 3px 10px rgba(37, 64, 108, 0.06);
  padding: 0.9rem 1rem;
}

.portfolio-single-card h2 {
  margin: 0 0 0.32rem;
  border-bottom: 0;
  padding-bottom: 0;
}

.portfolio-single-card h2 a {
  color: var(--k-title);
  text-decoration: none;
}

.portfolio-single-card h2 a:hover {
  color: var(--k-link-hover);
  text-decoration: underline;
}

.portfolio-single-card p {
  margin: 0 0 0.65rem;
  color: #3d4e63;
  line-height: 1.6;
}

.portfolio-single-btn {
  display: inline-block;
  border-radius: 999px;
  background: linear-gradient(135deg, #1f62b5 0%, #2f79d1 100%);
  border: 1px solid #1e60b2;
  color: var(--k-surface);
  text-decoration: none;
  font-size: 0.82rem;
  font-weight: 600;
  padding: 0.08rem 0.62rem;
}

.portfolio-single-btn:hover {
  background: linear-gradient(135deg, #1a559f 0%, #2a6dbc 100%);
  border-color: #1a549d;
  color: var(--k-surface);
}

/* Postgraduate page */
.postgraduate-block {
  margin: 0.9rem 0 1rem;
  padding: 0.05rem 0 0.35rem;
  border: 0;
  border-bottom: 1px dashed #d7e4f5;
  background: transparent;
  box-shadow: none;
}

.postgraduate-block h2 {
  margin: 0 0 0.42rem;
  padding: 0 0 0.18rem;
  border-bottom: 1px solid var(--k-card-border-section);
  color: var(--k-title);
  font-size: 1.16rem;
}

.postgraduate-block p {
  margin: 0;
  line-height: 1.62;
  color: #3d4e63;
  text-align: justify;
}

.postgraduate-block ol {
  margin: 0.08rem 0 0;
  padding-left: 1.25rem;
}

.postgraduate-block li {
  margin: 0.2rem 0;
  color: #3d4e63;
  line-height: 1.55;
}

.postgraduate-highlight {
  margin: 0.3rem 0 0.9rem;
  padding: 0.42rem 0.66rem;
  border-radius: 8px;
  border: 1px solid #d5e4f8;
  border-left: 4px solid var(--k-highlight);
  background: var(--k-surface-highlight);
  color: var(--k-title-deep);
  font-weight: 600;
}

.postgraduate-note {
  margin-top: 0.8rem;
  padding: 0.5rem 0.66rem;
  border-radius: 8px;
  border: 1px solid #f3d2d2;
  border-left: 4px solid #cb5e5e;
  background: #fff7f7;
  color: #9b1f1f;
  line-height: 1.55;
  font-weight: 600;
}

@media (max-width: 980px) {
  .blog-card-list {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 640px) {
  .blog-card-list {
    grid-template-columns: 1fr;
  }

  .blog-card {
    width: 100%;
    max-width: 360px;
  }
}

/* Narrow phones: comfortable tap margins, home indicator clearance */
@media (max-width: 480px) {
  .page__inner-wrap {
    border-radius: 12px;
    padding: 0.9rem 0.85rem;
  }

  .home-intro,
  .home-block {
    padding: 0.62rem 0.72rem;
  }

  .home-highlight {
    font-size: 0.94rem;
  }

  .page__footer {
    padding-bottom: max(1.25rem, env(safe-area-inset-bottom, 0px));
  }
}

/* Publications: justify both grouped and selected publication entries */
.pub-year-group li,
.selected-pubs-list li {
  text-align: justify;
  text-justify: inter-word;
  -webkit-hyphens: auto;
  hyphens: auto;
}

/* =========================================================
   Student cards (参考 OMG 主页成员区块)
   ========================================================= */

.student-card-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1rem;
  margin: 0.6rem 0 0;
  padding: 0;
}

.student-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  padding: 0.75rem 0.65rem 0.7rem;
  border: 1px solid var(--k-card-border);
  border-radius: 12px;
  background: var(--k-surface-gradient);
  box-shadow: 0 2px 8px rgba(37, 64, 108, 0.06);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.student-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 5px 14px rgba(37, 64, 108, 0.1);
}

.student-card__avatar {
  width: 3.2rem;
  height: 3.2rem;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--k-accent-hover) 0%, #6e96dc 100%);
  border: 2px solid var(--k-surface);
  box-shadow: 0 2px 6px rgba(30, 61, 110, 0.16);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
  line-height: 1;
  margin-bottom: 0.45rem;
}

.student-card__status {
  display: inline-block;
  padding: 0.12rem 0.45rem;
  border-radius: 999px;
  font-size: 0.65rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  margin-bottom: 0.35rem;
}

.student-card__status--current {
  color: #1a5e3a;
  background: #e3f8ec;
}

.student-card__status--graduated {
  color: #7c4a0e;
  background: #fff4e0;
}

.student-card__name {
  font-size: 0.98rem;
  font-weight: 700;
  color: var(--k-heading-secondary);
  margin: 0 0 0.1rem;
}

.student-card__years {
  font-size: 0.78rem;
  color: #5f7ea6;
  margin-bottom: 0.35rem;
}

.student-card__field,
.student-card__outcome {
  font-size: 0.84rem;
  color: var(--k-text-muted);
  line-height: 1.45;
  margin: 0.12rem 0 0;
}

.student-card__outcome {
  font-weight: 600;
  color: var(--k-title);
}

@media (max-width: 640px) {
  .student-card-grid {
    grid-template-columns: 1fr;
    gap: 0.75rem;
  }

  .student-card {
    padding: 0.65rem 0.55rem 0.6rem;
  }

  .student-card__avatar {
    width: 2.8rem;
    height: 2.8rem;
    font-size: 1.1rem;
  }

  .student-card__name {
    font-size: 0.92rem;
  }

  .student-card__field,
  .student-card__outcome,
  .student-card__years {
    font-size: 0.78rem;
  }
}

/* =========================================================
   Blog post gallery (参考 OMG 主页影像区块)
   ========================================================= */

.post-gallery {
  margin-top: 2.5rem;
  padding-top: 1.5rem;
  border-top: 1px solid #e1eaf5;
}

.post-gallery__title {
  font-size: 1.25rem;
  color: var(--k-heading);
  margin: 0 0 0.35rem;
  display: flex;
  align-items: center;
  gap: 0.4rem;
}

.post-gallery__meta {
  margin: 0 0 1rem;
  font-size: 0.9rem;
  color: #5f7ea6;
}

.post-gallery__sep {
  margin: 0 0.4rem;
  opacity: 0.7;
}

.post-gallery__grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 1rem;
}

.post-gallery__item {
  margin: 0;
  padding: 0;
  border-radius: 12px;
  overflow: hidden;
  background: var(--k-surface);
  border: 1px solid #e1eaf5;
  box-shadow: 0 2px 8px rgba(37, 64, 108, 0.06);
  transition: box-shadow 0.25s ease, transform 0.25s ease;
}

.post-gallery__item:hover {
  transform: translateY(-3px);
  box-shadow: 0 10px 28px rgba(37, 64, 108, 0.14);
}

.post-gallery__image-wrap {
  position: relative;
  aspect-ratio: 4 / 3;
  overflow: hidden;
  background: #f4f8fc;
  display: flex;
  align-items: center;
  justify-content: center;
}

.post-gallery__image-wrap::after {
  content: '';
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: rgba(27, 58, 94, 0);
  transition: background 0.25s ease;
}

.post-gallery__item:hover .post-gallery__image-wrap::after {
  background: rgba(27, 58, 94, 0.04);
}

.post-gallery__item img {
  display: block;
  max-width: 100%;
  max-height: 100%;
  width: auto;
  height: auto;
  object-fit: contain;
  transition: transform 0.35s ease;
}

.post-gallery__item:hover img {
  transform: scale(1.05);
}

.post-gallery__item figcaption {
  padding: 0.55rem 0.75rem 0.7rem;
  font-size: 0.85rem;
  color: var(--k-text-muted);
  line-height: 1.45;
  text-align: center;
}

@media (max-width: 640px) {
  .post-gallery__grid {
    grid-template-columns: 1fr;
  }
}

/* uniform thumbnails: fill the frame, crop overflow */
.post-gallery--cover .post-gallery__image-wrap a {
  display: block;
  width: 100%;
  height: 100%;
}

.post-gallery--cover .post-gallery__item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

@media (min-width: 925px) {
  .post-gallery__grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

/* Hide old student-list styles when new cards are used */
.student-card-grid + .student-list,
.student-card-grid ~ .student-list,
.home-block .student-card-grid {
  list-style: none;
}

.student-card-grid .student-card {
  list-style: none;
}

/* Hide default list bullets if li is used inside student-card-grid */
.student-card-grid > li {
  list-style: none;
  padding: 0;
  margin: 0;
  background: transparent;
  border: none;
  box-shadow: none;
}

.student-card-grid > li::before,
.student-card-grid > li::after {
  display: none !important;
}

/* =========================================================
   Horizontal student cards (flat / 扁扁的卡片 + 可折叠)
   ========================================================= */

.student-list-cards {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  margin: 0.55rem 0 0;
  padding: 0;
}

.student-card-h {
  display: flex;
  align-items: flex-start;
  gap: 0.85rem;
  padding: 0.75rem 0.9rem;
  border: 1px solid var(--k-card-border);
  border-radius: 12px;
  background: var(--k-surface-gradient);
  box-shadow: 0 2px 8px rgba(37, 64, 108, 0.06);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.student-card-h:hover {
  transform: translateY(-2px);
  box-shadow: 0 5px 14px rgba(37, 64, 108, 0.1);
}

.student-card-h__avatar {
  flex-shrink: 0;
  width: 3.4rem;
  height: 3.4rem;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--k-accent-hover) 0%, #6e96dc 100%);
  border: 2px solid var(--k-surface);
  box-shadow: 0 2px 6px rgba(30, 61, 110, 0.16);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.35rem;
  line-height: 1;
}

.student-card-h__body {
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.student-card-h__header {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 0.5rem;
  flex-wrap: wrap;
}

.student-card-h__name {
  font-size: 1.02rem;
  font-weight: 700;
  color: var(--k-heading-secondary);
  margin: 0;
}

.student-card-h__status {
  flex-shrink: 0;
  padding: 0.12rem 0.55rem;
  border-radius: 999px;
  font-size: 0.68rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.03em;
}

.student-card-h__status--current {
  color: #1a5e3a;
  background: #e3f8ec;
}

.student-card-h__status--graduated {
  color: #7c4a0e;
  background: #fff4e0;
}

.student-card-h__years {
  font-size: 0.82rem;
  color: #5f7ea6;
  margin: 0.12rem 0 0.28rem;
}

.student-card-h__field,
.student-card-h__outcome {
  font-size: 0.88rem;
  color: var(--k-text-muted);
  line-height: 1.45;
  margin: 0.1rem 0 0;
}

.student-card-h__outcome {
  font-weight: 600;
  color: var(--k-title);
}

@media (max-width: 640px) {
  .student-card-h {
    padding: 0.65rem 0.75rem;
  }

  .student-card-h__avatar {
    width: 2.8rem;
    height: 2.8rem;
    font-size: 1.1rem;
  }

  .student-card-h__name {
    font-size: 0.95rem;
  }

  .student-card-h__field,
  .student-card-h__outcome,
  .student-card-h__years {
    font-size: 0.82rem;
  }
}

/* Restore details summary styling for student groups */
.student-group summary {
  font-size: 1rem;
  font-weight: 700;
  color: var(--k-title);
  cursor: pointer;
  padding: 0.35rem 0;
  user-select: none;
}

.student-group summary::-webkit-details-marker {
  margin-right: 0.45rem;
}

.student-group[open] summary {
  margin-bottom: 0.3rem;
}

.student-group + .student-group {
  margin-top: 0.6rem;
}