/* 学术活动轮播增强样式：控制学术活动卡片堆叠、上下切换、预览卡片和动画状态。 */
.home-academic-timeline {
  --academic-gap: 1.1rem;
  --academic-item-height: 196px;
  --academic-preview-visible: 48px;
  --academic-preview-overlap: 0px;
  --academic-preview-scale: 0.92;
  --academic-line-x: calc(100% - 111px - 0.86rem);
  position: relative;
  width: 100%;
  flex: 1;
  min-height: 0;
  overflow: visible;
}

.home-academic-track {
  position: relative;
  width: 100%;
  flex: 1;
  min-height: 0;
  padding-top: calc(var(--academic-preview-visible) + 0.2rem);
  padding-bottom: calc(var(--academic-preview-visible) + 0.1rem);
  overflow: hidden;
}

.home-academic-section {
  position: relative;
  z-index: 1;
}

.home-academic-track::before {
  content: "";
  position: absolute;
  top: 0.55rem;
  bottom: 0.55rem;
  left: var(--academic-line-x);
  width: 2px;
  background: linear-gradient(
    180deg,
    rgba(0, 104, 183, 0.12) 0%,
    rgba(0, 104, 183, 0.62) 18%,
    rgba(0, 104, 183, 0.72) 50%,
    rgba(0, 104, 183, 0.42) 82%,
    rgba(0, 104, 183, 0.08) 100%
  );
  transform: translateX(-50%) scaleY(1);
  transform-origin: top;
  pointer-events: none;
}

.home-academic-viewport {
  position: relative;
  flex: 1;
  min-height: 0;
  overflow: visible;
}

.home-academic-list {
  position: relative;
  display: block;
  margin: 0;
  padding: 0;
  list-style: none;
  height: calc((var(--academic-item-height) * 2) + var(--academic-gap));
}

.home-academic-list.is-measuring {
  display: flex;
  flex-direction: column;
  gap: var(--academic-gap);
  height: auto;
}

.home-academic-list.is-static .home-academic-item,
.home-academic-list.is-measuring .home-academic-item {
  transition: none;
}

.home-academic-list.is-measuring .home-academic-item {
  position: relative;
  inset: auto;
  opacity: 1;
  filter: none;
  clip-path: none;
  transform: none;
  pointer-events: auto;
}

.home-academic-list::before {
  content: none;
}

.home-academic-item {
  position: absolute;
  inset: 0 auto auto 0;
  width: 100%;
  display: grid;
  grid-template-columns: minmax(0, 1fr) 58px 82px;
  gap: 0.86rem;
  align-items: stretch;
  height: var(--academic-item-height);
  border-radius: 0;
  background: transparent;
  transform: translateY(var(--academic-y, 0)) scale(var(--academic-scale, 1));
  transform-origin: var(--academic-origin, center center);
  opacity: var(--academic-opacity, 1);
  filter: blur(var(--academic-blur, 0));
  clip-path: inset(var(--academic-clip-top, 0) 0 var(--academic-clip-bottom, 0) 0 round 24px);
  transition:
    transform 0.68s cubic-bezier(0.22, 1, 0.36, 1),
    opacity 0.68s ease,
    filter 0.68s ease,
    clip-path 0.68s cubic-bezier(0.22, 1, 0.36, 1);
  will-change: transform, opacity, filter, clip-path;
  backface-visibility: hidden;
}

.home-academic-item::before {
  content: "";
  position: absolute;
  inset: 0 82px 0 0;
  z-index: 1;
  border-radius: var(--radius-lg);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.28s ease;
}

.home-academic-item:hover,
.home-academic-item:focus-within {
  background: transparent;
}

.home-academic-item[data-academic-role="main-top"] {
  z-index: 4;
}

.home-academic-item[data-academic-role="main-bottom"] {
  z-index: 3;
}

.home-academic-item[data-academic-role="top-peek"],
.home-academic-item[data-academic-role="bottom-peek"] {
  z-index: 2;
}

.home-academic-item[data-academic-role="hidden-above"],
.home-academic-item[data-academic-role="hidden-below"] {
  z-index: 1;
  pointer-events: none;
}

.home-academic-item[data-academic-role="main-top"],
.home-academic-item[data-academic-role="main-bottom"] {
  filter: none;
}

.home-academic-item[data-academic-role="top-peek"]::before {
  opacity: 1;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.82) 0%, rgba(255, 255, 255, 0.16) 100%);
}

.home-academic-item[data-academic-role="bottom-peek"]::before {
  opacity: 1;
  background: linear-gradient(0deg, rgba(255, 255, 255, 0.82) 0%, rgba(255, 255, 255, 0.16) 100%);
}

.home-academic-main {
  justify-content: flex-start;
  min-height: 0;
  height: 100%;
  padding: 1.05rem 1.2rem 1rem;
  overflow: hidden;
  transform: translateZ(0);
  transition:
    border-color 0.16s ease,
    box-shadow 0.16s ease,
    transform 0.16s ease,
    background-color 0.16s ease,
    filter 0.16s ease;
}

.home-academic-main::before {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.32), rgba(255, 255, 255, 0) 42%),
    radial-gradient(circle at top left, rgba(255, 255, 255, 0.3), transparent 38%);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.16s ease;
}

.home-academic-date {
  transition: opacity 0.5s ease, transform 0.58s cubic-bezier(0.22, 1, 0.36, 1);
}

.home-academic-monthday {
  transition: color 0.16s ease, transform 0.16s ease;
}

.home-academic-year {
  transition: color 0.16s ease;
}

.home-academic-list:not(.is-animating) .home-academic-item[data-academic-role="main-top"]:hover .home-academic-main,
.home-academic-list:not(.is-animating) .home-academic-item[data-academic-role="main-top"]:focus-within .home-academic-main,
.home-academic-list:not(.is-animating) .home-academic-item[data-academic-role="main-bottom"]:hover .home-academic-main,
.home-academic-list:not(.is-animating) .home-academic-item[data-academic-role="main-bottom"]:focus-within .home-academic-main {
  background: linear-gradient(180deg, rgba(255, 255, 255, 1), rgba(245, 250, 255, 0.98));
  border-color: rgba(0, 104, 183, 0.28);
  box-shadow:
    0 26px 46px rgba(0, 63, 115, 0.18),
    0 10px 18px rgba(0, 63, 115, 0.08),
    inset 0 1px 0 rgba(255, 255, 255, 0.92);
  transform: translateY(-5px) scale(1.012);
  filter: saturate(1.03);
}

.home-academic-list:not(.is-animating) .home-academic-item[data-academic-role="main-top"]:hover .home-academic-main::before,
.home-academic-list:not(.is-animating) .home-academic-item[data-academic-role="main-top"]:focus-within .home-academic-main::before,
.home-academic-list:not(.is-animating) .home-academic-item[data-academic-role="main-bottom"]:hover .home-academic-main::before,
.home-academic-list:not(.is-animating) .home-academic-item[data-academic-role="main-bottom"]:focus-within .home-academic-main::before {
  opacity: 1;
}

.home-academic-list.is-animating .home-academic-item,
.home-academic-list.is-animating .home-academic-link-cover {
  pointer-events: none;
}

.home-academic-item[data-academic-role="top-peek"] .home-academic-main,
.home-academic-item[data-academic-role="bottom-peek"] .home-academic-main {
  border-color: rgba(0, 104, 183, 0.1);
  box-shadow: 0 16px 28px rgba(0, 63, 115, 0.1);
}

.home-academic-item[data-academic-role="hidden-above"] .home-academic-main,
.home-academic-item[data-academic-role="hidden-below"] .home-academic-main {
  border-color: rgba(0, 104, 183, 0.08);
  box-shadow: 0 10px 20px rgba(0, 63, 115, 0.05);
}

.home-academic-item[data-academic-role="hidden-above"]::before,
.home-academic-item[data-academic-role="hidden-below"]::before {
  opacity: 1;
}

.home-academic-item[data-academic-role="hidden-above"]::before {
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.9) 0%, rgba(255, 255, 255, 0.45) 100%);
}

.home-academic-item[data-academic-role="hidden-below"]::before {
  background: linear-gradient(0deg, rgba(255, 255, 255, 0.9) 0%, rgba(255, 255, 255, 0.45) 100%);
}

.home-academic-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.9rem;
  margin-bottom: 0.68rem;
}

.home-academic-category {
  display: inline-flex;
  align-items: center;
  min-height: 1.9rem;
  padding: 0.22rem 0.8rem;
  border-radius: 999px;
  background: rgba(0, 104, 183, 0.08);
  color: var(--color-primary);
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.03em;
}

.home-academic-session {
  color: rgba(24, 52, 77, 0.52);
  font-size: 0.84rem;
  white-space: nowrap;
}

.home-academic-main h3 {
  margin: 0;
  display: block;
  color: var(--color-primary-dark);
  font-family: var(--font-title);
  font-size: 1.08rem;
  font-weight: 700;
  overflow: hidden;
  white-space: nowrap;
  text-overflow: ellipsis;
  line-height: 1.6;
  min-height: calc(1em * 1.6 + 0.2rem);
  padding-top: 0.1rem;
  text-rendering: optimizeLegibility;
  transform: none;
}

.home-academic-summary {
  margin: 0.48rem 0 0;
  color: rgba(24, 52, 77, 0.74);
  font-size: 0.9rem;
  line-height: 1.45;
  min-height: calc(1em * 1.5);
  padding-top: 0;
  display: block;
  overflow: hidden;
  white-space: nowrap;
  text-overflow: ellipsis;
}

.home-academic-meta {
  margin: auto 0 0;
  padding-top: 0.58rem;
}

.home-academic-meta div {
  gap: 0.72rem;
  font-size: 0.9rem;
  line-height: 1.6;
}

.home-academic-meta dt {
  min-width: 3em;
}

.home-academic-marker {
  align-self: stretch;
}

.home-academic-marker::before,
.home-academic-marker::after {
  transition:
    transform 0.22s cubic-bezier(0.22, 1, 0.36, 1),
    opacity 0.18s ease,
    background-color 0.18s ease,
    box-shadow 0.18s ease,
    border-color 0.18s ease;
  transition-delay: 0s;
}

.home-academic-marker::after {
  content: none;
}

.home-academic-date {
  align-content: center;
}

.home-academic-monthday {
  font-size: 1.28rem;
}

.home-academic-link-cover {
  pointer-events: none;
}

.home-academic-item[data-academic-role="main-top"] .home-academic-link-cover,
.home-academic-item[data-academic-role="main-bottom"] .home-academic-link-cover {
  pointer-events: auto;
}

.home-academic-nav {
  position: absolute;
  left: var(--academic-line-x);
  z-index: 6;
  width: 34px;
  height: 34px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0;
  border: 1px solid rgba(0, 104, 183, 0.16);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.98);
  box-shadow: 0 10px 22px rgba(0, 63, 115, 0.1);
  cursor: pointer;
  transform: translateX(-50%);
  transition:
    background-color 0.24s ease,
    border-color 0.24s ease,
    box-shadow 0.24s ease,
    transform 0.24s ease;
}

.home-academic-nav::before {
  content: "";
  width: 10px;
  height: 10px;
  border-left: 2px solid var(--color-primary);
  border-top: 2px solid var(--color-primary);
}

.home-academic-nav:hover,
.home-academic-nav:focus-visible {
  border-color: rgba(0, 104, 183, 0.3);
  background: #ffffff;
  box-shadow: 0 14px 26px rgba(0, 63, 115, 0.14);
  transform: translateX(-50%) translateY(-2px);
}

.home-academic-nav:disabled {
  opacity: 0.45;
  cursor: not-allowed;
  box-shadow: none;
  transform: translateX(-50%);
}

.home-academic-nav-prev {
  top: 14px;
}

.home-academic-nav-prev::before {
  transform: rotate(45deg) translate(1px, 1px);
}

.home-academic-nav-next {
  bottom: 14px;
}

.home-academic-nav-next::before {
  transform: rotate(225deg) translate(-1px, -1px);
}

.home-academic-item:hover .home-academic-date,
.home-academic-item:focus-within .home-academic-date {
  transform: translateY(-2px);
}

.home-academic-item:hover .home-academic-monthday,
.home-academic-item:focus-within .home-academic-monthday {
  color: var(--color-primary);
  transform: scale(1.04);
}

.home-academic-item:hover .home-academic-year,
.home-academic-item:focus-within .home-academic-year {
  color: rgba(0, 63, 115, 0.72);
}

.home-academic-item:hover .home-academic-marker::before,
.home-academic-item:focus-within .home-academic-marker::before {
  transform: translate(-50%, -50%) scale(1.24);
  background: var(--color-primary);
  border-color: rgba(255, 255, 255, 0.96);
  box-shadow: 0 0 0 10px rgba(0, 104, 183, 0.13);
}

.home-academic-section:not(.is-visible) .home-academic-track::before {
  transform: translateX(-50%) scaleY(0);
}

.home-academic-section:not(.is-visible) .home-academic-item .home-academic-date {
  opacity: 0;
  transform: translateX(26px);
}

.home-academic-section:not(.is-visible) .home-academic-item .home-academic-marker::before {
  opacity: 0;
  transform: translate(-50%, -50%) scale(0.3);
}

.home-academic-section:not(.is-visible) .home-academic-item .home-academic-main {
  opacity: 0;
  transform: translateX(-28px);
}

.home-academic-section:not(.is-visible) .home-academic-nav {
  opacity: 0;
  transform: translateX(-50%) translateY(10px);
}

.home-academic-section.is-visible .home-academic-track::before {
  transition: transform 1.08s cubic-bezier(0.22, 1, 0.36, 1);
}

.home-academic-section.is-visible .home-academic-item .home-academic-date,
.home-academic-section.is-visible .home-academic-item .home-academic-marker::before,
.home-academic-section.is-visible .home-academic-item .home-academic-main,
.home-academic-section.is-visible .home-academic-nav {
  opacity: 1;
}

.home-academic-section.is-visible:not(.is-reveal-complete) .home-academic-item .home-academic-date {
  transform: translateX(0);
  transition-delay: calc(0.32s + var(--academic-delay, 0) * 0.1s);
}

.home-academic-section.is-visible:not(.is-reveal-complete) .home-academic-item .home-academic-marker::before {
  transform: translate(-50%, -50%) scale(1);
  transition-delay: calc(0.38s + var(--academic-delay, 0) * 0.1s);
}

.home-academic-section.is-visible:not(.is-reveal-complete) .home-academic-item .home-academic-main {
  opacity: 1;
  transform: translateX(0);
  transition:
    opacity 0.56s ease,
    transform 0.64s cubic-bezier(0.22, 1, 0.36, 1),
    border-color 0.16s ease,
    box-shadow 0.16s ease,
    background-color 0.16s ease,
    filter 0.16s ease;
  transition-delay: calc(0.38s + var(--academic-delay, 0) * 0.1s);
}

.home-academic-section.is-reveal-complete .home-academic-item .home-academic-date,
.home-academic-section.is-reveal-complete .home-academic-item .home-academic-marker::before,
.home-academic-section.is-reveal-complete .home-academic-item .home-academic-main,
.home-academic-section.is-visible .home-academic-item:hover .home-academic-date,
.home-academic-section.is-visible .home-academic-item:focus-within .home-academic-date,
.home-academic-section.is-visible .home-academic-item:hover .home-academic-marker::before,
.home-academic-section.is-visible .home-academic-item:focus-within .home-academic-marker::before,
.home-academic-section.is-visible .home-academic-item:hover .home-academic-main,
.home-academic-section.is-visible .home-academic-item:focus-within .home-academic-main {
  transition-delay: 0s;
}

.home-academic-section.is-visible .home-academic-nav {
  transition:
    opacity 0.42s ease,
    transform 0.48s cubic-bezier(0.22, 1, 0.36, 1),
    background-color 0.24s ease,
    border-color 0.24s ease,
    box-shadow 0.24s ease;
}

.home-academic-section.is-visible .home-academic-nav-prev {
  transform: translateX(-50%) translateY(0);
  transition-delay: 0.58s;
}

.home-academic-section.is-visible .home-academic-nav-next {
  transform: translateX(-50%) translateY(0);
  transition-delay: 0.66s;
}

.home-academic-more-wrap {
  position: relative;
  width: 100%;
  min-height: 6.2rem;
  padding-top: 2.35rem;
  margin-top: -2.9rem;
}

.home-academic-more-wrap::after {
  content: none;
}

.home-academic-more {
  position: absolute;
  top: 2.45rem;
  left: var(--academic-line-x);
  min-width: 136px;
  padding: 0.88rem 1.22rem;
  text-align: center;
  transform: translateX(-50%);
}

.home-academic-more:hover,
.home-academic-more:focus-visible {
  transform: translateX(-50%) translateY(-3px);
}

.home-academic-section:not(.is-visible) .home-academic-more-wrap {
  opacity: 0;
  transform: translateY(20px);
}

.home-academic-section.is-visible .home-academic-more-wrap {
  opacity: 1;
  transform: translateY(0);
  transition:
    opacity 0.52s ease,
    transform 0.6s cubic-bezier(0.22, 1, 0.36, 1);
  transition-delay: 0.72s;
}

@media (max-width: 767.98px) {
  .home-academic-timeline {
    --academic-gap: 0.9rem;
  }

  .home-academic-track {
    padding-top: calc(var(--academic-preview-visible) + 0.12rem);
    padding-bottom: calc(var(--academic-preview-visible) + 0.08rem);
  }

  .home-academic-track::before,
  .home-academic-nav {
    left: calc(100% - 71px - 0.66rem);
  }

  .home-academic-item {
    grid-template-columns: minmax(0, 1fr) 38px 52px;
    gap: 0.66rem;
    clip-path: inset(var(--academic-clip-top, 0) 0 var(--academic-clip-bottom, 0) 0 round 20px);
  }

  .home-academic-item::before {
    inset-right: 52px;
    border-radius: 20px;
  }

  .home-academic-main {
    padding: 0.88rem 0.92rem 0.9rem;
  }

  .home-academic-top {
    flex-wrap: wrap;
    gap: 0.55rem;
    margin-bottom: 0.56rem;
  }

  .home-academic-category {
    min-height: 1.75rem;
    font-size: 0.76rem;
  }

  .home-academic-session {
    font-size: 0.78rem;
  }

  .home-academic-main h3 {
    font-size: 0.98rem;
    min-height: calc(1em * 1.6 + 0.18rem);
  }

  .home-academic-summary {
    margin-top: 0.42rem;
    font-size: 0.84rem;
    line-height: 1.45;
    min-height: calc(1em * 1.45);
  }

  .home-academic-meta {
    padding-top: 0.48rem;
  }

  .home-academic-meta div {
    gap: 0.55rem;
    font-size: 0.83rem;
  }

  .home-academic-monthday {
    font-size: 0.98rem;
  }

  .home-academic-year {
    font-size: 0.68rem;
    letter-spacing: 0.08em;
  }

  .home-academic-nav {
    width: 30px;
    height: 30px;
  }

  .home-academic-nav-prev {
    top: 10px;
  }

  .home-academic-nav-next {
    bottom: 10px;
  }

  .home-academic-nav::before {
    width: 8px;
    height: 8px;
  }

  .home-academic-more-wrap {
    min-height: 5.4rem;
    padding-top: 2.1rem;
    margin-top: -2.2rem;
  }

  .home-academic-more {
    min-width: 128px;
    padding: 0.78rem 1.04rem;
  }
}