/* 首页头部导航样式：控制顶部导航、学院标识、下拉菜单、搜索面板和移动端菜单。 */
body.home-page {
  --home-nav-desktop-bg: rgba(255, 255, 255, 0.336);
  --home-nav-mobile-bg: rgba(255, 255, 255, 0.336);
  --home-nav-panel-bg: rgba(255, 255, 255, 0.96);
  --home-nav-card-bg: rgba(255, 255, 255, 0.82);
  --home-nav-accent: #0068b7;
  --home-nav-hot: #0068b7;
  --home-nav-ink: #163b5d;
  --home-nav-underline: #9ed1ff;
  --home-nav-dropdown-border: rgba(0, 104, 183, 0.16);
  --home-nav-dropdown-shadow: 0 20px 36px rgba(0, 59, 105, 0.16);
  --home-nav-tool-size: 42px;
}

body.home-page .home-site-header {
  position: relative;
  z-index: 1000;
}

body.home-page .home-nav-bar {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  background: var(--home-nav-desktop-bg);
  border-bottom: 1px solid rgba(0, 104, 183, 0.08);
  backdrop-filter: blur(14px);
}

body.home-page .home-nav-shell {
  display: grid;
  padding: 0;
  place-items: center;
}

body.home-page .home-site-nav {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1fr) 350px minmax(0, 1fr) auto;
  align-items: center;
  gap: 0 1rem;
  width: 100%;
}

body.home-page .home-nav-list-left,
body.home-page .home-nav-list-right {
  display: flex;
  align-items: center;
  margin: 0;
  min-width: 0;
  list-style: none;
}

body.home-page .home-nav-list {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  width: 100%;
  margin: 0;
  padding: 0;
  list-style: none;
}

body.home-page .home-nav-item {
  position: relative;
  margin: 0;
  padding: 0;
  list-style: none;
}

body.home-page .home-nav-brand {
  display: flex;
  align-items: center;
  justify-content: center;
  min-width: 0;
}

body.home-page .home-identity {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 300px;
  max-width: 100%;
  min-width: 0;
}

body.home-page .home-identity img {
  display: block;
  width: 100%;
  height: auto;
}

body.home-page .home-nav-tools {
  display: flex;
  align-items: center;
  gap: 0.55rem;
  justify-self: end;
}

body.home-page .home-search-toggle,
body.home-page .home-nav-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: var(--home-nav-tool-size);
  height: var(--home-nav-tool-size);
  padding: 0;
  border: 1px solid rgba(0, 104, 183, 0.18);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.92);
  box-shadow: 0 10px 20px rgba(0, 59, 105, 0.08);
  transition: background-color 0.25s ease, border-color 0.25s ease, transform 0.25s ease;
}

body.home-page .home-search-toggle:hover,
body.home-page .home-search-toggle:focus-visible,
body.home-page .home-nav-toggle:hover,
body.home-page .home-nav-toggle:focus-visible {
  border-color: rgba(0, 104, 183, 0.34);
  background: rgba(255, 255, 255, 0.98);
  transform: translateY(-1px);
}

body.home-page .home-search-toggle-icon {
  position: relative;
  display: block;
  width: 14px;
  height: 14px;
  border: 2px solid var(--home-nav-ink);
  border-radius: 50%;
}

body.home-page .home-search-toggle-icon::after {
  content: "";
  position: absolute;
  right: -5px;
  bottom: -4px;
  width: 7px;
  height: 2px;
  background: var(--home-nav-ink);
  border-radius: 999px;
  transform: rotate(45deg);
  transform-origin: center;
}

body.home-page .home-nav-toggle {
  display: none;
  flex-direction: column;
}

body.home-page .home-nav-toggle-line {
  display: block;
  width: 16px;
  height: 2px;
  background: var(--home-nav-ink);
  border-radius: 999px;
  transition: transform 0.25s ease, opacity 0.25s ease, background-color 0.25s ease;
}

body.home-page .home-nav-toggle-line + .home-nav-toggle-line {
  margin-top: 4px;
}

body.home-page .home-nav-link {
  position: relative;
  display: block;
  padding: 1rem 0.75rem;
  color: var(--home-nav-ink);
  font-size: 18px;
  font-weight: 600;
  letter-spacing: 0.04em;
  line-height: 1.35;
  text-align: center;
  text-decoration: none;
  white-space: nowrap;
  transition: background-color 0.2s ease, color 0.2s ease;
}

body.home-page .home-nav-link::after {
  content: "";
  position: absolute;
  left: 50%;
  bottom: 10px;
  width: 0;
  height: 2px;
  background: var(--home-nav-underline);
  transform: translateX(-50%);
  transition: width 0.2s ease;
}

body.home-page .home-nav-link:hover,
body.home-page .home-nav-link:focus-visible,
body.home-page .home-nav-link.is-active,
body.home-page .home-nav-item.is-open > .home-nav-link {
  color: #000;
  background: rgba(255, 255, 255, 0.18);
}

body.home-page .home-nav-link:hover::after,
body.home-page .home-nav-link:focus-visible::after,
body.home-page .home-nav-link.is-active::after,
body.home-page .home-nav-item.is-open > .home-nav-link::after {
  width: 58px;
}

body.home-page .home-nav-dropdown {
  position: absolute;
  top: 100%;
  left: 50%;
  z-index: 20;
  min-width: 150px;
  margin: 0;
  padding: 0.4rem 0;
  list-style: none;
  text-align: center;
  background: rgba(255, 255, 255, 0.98);
  border: 1px solid var(--home-nav-dropdown-border);
  border-radius: 14px;
  box-shadow: var(--home-nav-dropdown-shadow);
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transform: translateX(-50%) translateY(8px);
  transition: opacity 0.2s ease, transform 0.2s ease, visibility 0.2s ease;
}

body.home-page .home-nav-dropdown li + li {
  border-top: 1px solid rgba(0, 104, 183, 0.08);
}

body.home-page .home-nav-dropdown a {
  display: block;
  padding: 0.9rem 1.1rem;
  color: var(--color-ink);
  font-size: 1rem;
  white-space: nowrap;
  transition: background-color 0.2s ease, color 0.2s ease;
}

body.home-page .home-nav-dropdown a:hover,
body.home-page .home-nav-dropdown a:focus-visible {
  color: var(--home-nav-hot);
  background: rgba(0, 104, 183, 0.06);
}

body.home-page .home-nav-item:hover > .home-nav-dropdown,
body.home-page .home-nav-item:focus-within > .home-nav-dropdown,
body.home-page .home-nav-item.is-open > .home-nav-dropdown {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
  transform: translateX(-50%) translateY(0);
}

body.home-page .home-search-panel {
  position: absolute;
  top: calc(100% + 10px);
  right: 0;
  z-index: 30;
  width: min(380px, calc(100vw - 32px));
  max-height: 0;
  padding: 0 16px;
  overflow: hidden;
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  background: var(--home-nav-panel-bg);
  border: 1px solid rgba(0, 104, 183, 0.12);
  border-radius: 20px;
  box-shadow: 0 20px 36px rgba(0, 59, 105, 0.14);
  transform: translateY(-10px);
  transition:
    max-height 0.28s ease,
    padding 0.28s ease,
    opacity 0.22s ease,
    transform 0.22s ease,
    visibility 0.22s ease;
}

body.home-page .home-site-nav.is-search-open .home-search-panel {
  max-height: 440px;
  padding: 16px;
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
  transform: translateY(0);
}

body.home-page .home-search-form {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 0.65rem;
}

body.home-page .home-search-input {
  width: 100%;
  min-height: 44px;
  padding: 0 0.95rem;
  color: var(--color-ink);
  border: 1px solid rgba(0, 104, 183, 0.16);
  border-radius: 14px;
  background: rgba(255, 255, 255, 0.96);
}

body.home-page .home-search-input:focus {
  border-color: rgba(0, 104, 183, 0.34);
  outline: none;
  box-shadow: 0 0 0 4px rgba(0, 104, 183, 0.08);
}

body.home-page .home-search-submit {
  min-width: 76px;
  min-height: 44px;
  padding: 0 1rem;
  color: #fff;
  border: 0;
  border-radius: 14px;
  background: linear-gradient(180deg, #0068b7, #00589d);
}

body.home-page .home-search-meta {
  margin: 0.85rem 0 0;
  color: var(--color-muted);
  font-size: 0.92rem;
  line-height: 1.6;
}

body.home-page .home-search-results {
  display: grid;
  gap: 0.45rem;
  margin: 0.85rem 0 0;
  padding: 0;
  list-style: none;
}

body.home-page .home-search-result {
  list-style: none;
}

body.home-page .home-search-result-link {
  display: block;
  padding: 0.9rem 1rem;
  color: var(--color-ink);
  text-decoration: none;
  background: rgba(255, 255, 255, 0.9);
  border: 1px solid rgba(0, 104, 183, 0.08);
  border-radius: 14px;
  transition: background-color 0.2s ease, border-color 0.2s ease, transform 0.2s ease;
}

body.home-page .home-search-result-link:hover,
body.home-page .home-search-result-link:focus-visible {
  border-color: rgba(0, 104, 183, 0.2);
  background: rgba(255, 255, 255, 1);
  transform: translateY(-1px);
}

body.home-page .home-search-result-title {
  display: block;
  font-weight: 600;
  line-height: 1.55;
}

body.home-page .home-search-result-meta {
  display: block;
  margin-top: 0.28rem;
  color: var(--color-muted);
  font-size: 0.86rem;
  line-height: 1.5;
}

body.home-page a[data-link-status="pending"] {
  cursor: pointer;
}

body.home-page a[data-link-status="pending"]::before {
  display: none;
  content: "pending";
}

@media (max-width: 1199.98px) {
  body.home-page {
    --home-nav-tool-size: 40px;
  }

  body.home-page .home-site-nav {
    grid-template-columns: minmax(0, 1fr) minmax(240px, 28vw) minmax(0, 1fr) auto;
    gap: 0 0.75rem;
  }

  body.home-page .home-nav-link {
    padding-inline: 0.55rem;
    font-size: 17px;
  }

  body.home-page .home-identity {
    width: 270px;
  }
}

@media (max-width: 991.98px) {
  body.home-page .home-nav-bar {
    background: var(--home-nav-mobile-bg);
  }

  body.home-page .home-site-nav {
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: center;
    gap: 0.65rem;
    padding: 0.35rem 0 0.45rem;
  }

  body.home-page .home-nav-brand {
    grid-column: 1 / -1;
    grid-row: 1;
    width: 100%;
    padding-right: 76px;
    justify-content: flex-start;
  }

  body.home-page .home-identity {
    width: clamp(176px, 42vw, 228px);
  }

  body.home-page .home-nav-tools {
    gap: 0.35rem;
    position: absolute;
    top: 6px;
    right: 0;
    z-index: 2;
  }

  body.home-page .home-nav-toggle {
    display: inline-flex;
  }

  body.home-page .home-search-panel {
    left: 0;
    right: 0;
    width: auto;
    margin-top: 0;
    transform: translateY(-8px);
  }

  body.home-page .home-nav-list-left,
  body.home-page .home-nav-list-right {
    width: 100%;
    overflow: hidden;
    max-height: 0;
    opacity: 0;
    pointer-events: none;
    position: relative;
    transform: translateY(-10px);
    transition: max-height 0.32s ease, opacity 0.24s ease, transform 0.24s ease;
  }

  body.home-page .home-nav-list-left {
    grid-column: 1 / -1;
    grid-row: 2;
  }

  body.home-page .home-nav-list-right {
    grid-column: 1 / -1;
    grid-row: 3;
    margin-top: 0;
  }

  body.home-page .home-site-nav.is-menu-open .home-nav-list-left,
  body.home-page .home-site-nav.is-menu-open .home-nav-list-right {
    max-height: 360px;
    overflow: visible;
    opacity: 1;
    pointer-events: auto;
    transform: translateY(0);
  }

  body.home-page .home-site-nav.is-menu-open .home-nav-list-left {
    z-index: 20;
  }

  body.home-page .home-site-nav.is-menu-open .home-nav-list-right {
    z-index: 10;
  }

  body.home-page .home-site-nav.is-menu-open .home-nav-toggle-line:nth-child(1) {
    transform: translateY(6px) rotate(45deg);
  }

  body.home-page .home-site-nav.is-menu-open .home-nav-toggle-line:nth-child(2) {
    opacity: 0;
  }

  body.home-page .home-site-nav.is-menu-open .home-nav-toggle-line:nth-child(3) {
    transform: translateY(-6px) rotate(-45deg);
  }

  body.home-page .home-nav-list {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 0.35rem;
  }

  body.home-page .home-nav-link {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 48px;
    padding: 0.6rem 0.3rem;
    font-size: 0.88rem;
    white-space: normal;
    background: var(--home-nav-card-bg);
    border-radius: 14px;
    box-shadow: 0 8px 14px rgba(0, 59, 105, 0.05);
  }

  body.home-page .home-nav-link::after {
    bottom: 6px;
  }

  body.home-page .home-nav-item {
    position: relative;
  }

  body.home-page .home-nav-item.is-open {
    z-index: 80;
  }

  body.home-page .home-nav-dropdown {
    position: absolute;
    top: 100%;
    left: 50%;
    right: auto;
    z-index: 81;
    width: min(240px, calc(100vw - 24px));
    min-width: 0;
    margin: 0;
    padding: 0.55rem;
    display: grid;
    grid-template-columns: minmax(0, 1fr);
    gap: 0.45rem;
    background: var(--home-nav-panel-bg);
    border: 1px solid rgba(0, 104, 183, 0.12);
    border-radius: 18px;
    box-shadow: 0 20px 36px rgba(0, 59, 105, 0.14);
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transform: translateX(-50%) translateY(-10px);
    transition: opacity 0.24s ease, transform 0.24s ease, visibility 0.24s ease;
  }

  body.home-page .home-nav-item.is-open > .home-nav-dropdown {
    transform: translateX(-50%) translateY(0);
  }

  body.home-page .home-nav-dropdown li + li {
    border-top: 0;
  }

  body.home-page .home-nav-dropdown a {
    padding: 0.7rem 0.6rem;
    font-size: 0.82rem;
    white-space: normal;
    background: rgba(255, 255, 255, 0.94);
    border-radius: 12px;
  }
}

@media (max-width: 575.98px) {
  body.home-page .home-site-nav {
    padding: 0.3rem 0 0.35rem;
  }

  body.home-page .home-nav-brand {
    padding-right: 72px;
  }

  body.home-page .home-identity {
    width: clamp(156px, 46vw, 190px);
  }

  body.home-page .home-nav-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  body.home-page .home-site-nav.is-menu-open .home-nav-list-left,
  body.home-page .home-site-nav.is-menu-open .home-nav-list-right {
    max-height: 460px;
    overflow: visible;
  }

  body.home-page .home-nav-link {
    min-height: 44px;
    font-size: 0.84rem;
    padding: 0.55rem 0.28rem;
  }

  body.home-page .home-search-form {
    grid-template-columns: 1fr;
  }

  body.home-page .home-search-submit {
    width: 100%;
  }
}