.home-nav-group {
  position: relative;
}

.home-nav-trigger {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  min-height: 40px;
  padding: 0;
  color: #173a5b;
  background: transparent;
  border: 0;
  font-size: inherit;
  font-weight: inherit;
  cursor: pointer;
}

.home-nav-trigger span {
  font-size: .9em;
  transition: transform .2s ease;
}

.home-nav-group:focus-within .home-nav-trigger span,
.home-nav-group:hover .home-nav-trigger span,
.home-nav-group.is-open .home-nav-trigger span {
  transform: rotate(180deg);
}

.home-nav-dropdown {
  position: absolute;
  top: 100%;
  left: 50%;
  z-index: 30;
  display: grid;
  min-width: 210px;
  padding: 8px;
  background: rgba(255, 255, 255, .98);
  border: 1px solid rgba(91, 172, 188, .3);
  border-radius: 12px;
  box-shadow: 0 18px 38px rgba(7, 68, 96, .18);
  opacity: 0;
  pointer-events: none;
  transform: translate(-50%, -5px);
  transition: opacity .2s ease, transform .2s ease;
}

.detail-link[hidden],
.platform-tab[hidden],
.platform-placeholder[hidden],
.download-modal[hidden] {
  display: none !important;
}

.home-nav-dropdown-wide {
  min-width: 245px;
}

.home-nav-group:hover .home-nav-dropdown,
.home-nav-group:focus-within .home-nav-dropdown,
.home-nav-group.is-open .home-nav-dropdown {
  opacity: 1;
  pointer-events: auto;
  transform: translate(-50%, 0);
}

.home-nav-dropdown a {
  display: block;
  min-height: 36px;
  padding: 9px 12px;
  color: #214d67;
  border-radius: 7px;
  font-size: 13px;
  text-decoration: none;
  white-space: normal;
}

.home-nav-dropdown a:hover,
.home-nav-dropdown a:focus-visible {
  color: #07548b;
  background: #edf8fb;
  outline: none;
}

.primary-nav-overlay .home-nav-language-group .home-nav-trigger {
  min-height: 40px;
  color: #45677d;
  font-size: 11px;
  font-weight: 700;
}

.primary-nav-overlay .home-nav-language-dropdown {
  left: auto;
  right: 0;
  min-width: 150px;
  transform: translate(0, -5px);
}

.primary-nav-overlay .home-nav-language-group:hover .home-nav-language-dropdown,
.primary-nav-overlay .home-nav-language-group:focus-within .home-nav-language-dropdown,
.primary-nav-overlay .home-nav-language-group.is-open .home-nav-language-dropdown {
  transform: translate(0, 0);
}

.home-nav-language-dropdown a[aria-current="page"] {
  color: #07548b;
  background: #edf8fb;
  font-weight: 700;
}

.responsive-nav-language-group {
  margin: 3px 0 4px;
  border: 1px solid rgba(146, 210, 219, .42);
  border-radius: 8px;
}

.responsive-nav-language-group summary {
  padding: 9px 12px;
  color: #d9f0f3;
  cursor: pointer;
  list-style: none;
}

.responsive-nav-language-group summary::-webkit-details-marker {
  display: none;
}

.responsive-nav-language-group summary::after {
  float: right;
  content: '⌄';
}

.responsive-nav-language-group[open] summary::after {
  transform: rotate(180deg);
}

.responsive-nav-languages {
  display: grid;
  gap: 2px;
  padding: 0 6px 6px;
}

.responsive-nav-languages a {
  display: block;
  min-height: 32px;
  padding: 8px 6px;
  color: #d9f0f3;
  text-decoration: none;
}

.responsive-nav-languages a[aria-current="page"] {
  color: #fff;
  background: rgba(69, 217, 167, .15);
}

.responsive-nav-heading {
  margin: 8px 7px 1px;
  color: #087493;
  font-size: 10px;
  font-weight: 800;
  letter-spacing: .1em;
  text-transform: uppercase;
}

.transition-footer {
  color: #d9f0f3;
  background: #062c49;
  border-top: 1px solid rgba(0, 215, 235, .22);
}

.transition-footer-inner {
  width: min(1420px, calc(100% - 48px));
  margin: 0 auto;
  padding: 68px 0 26px;
}

.transition-footer-brand {
  display: flex;
  align-items: center;
  gap: 20px;
  margin-bottom: 48px;
}

.transition-footer-brand img {
  display: block;
  width: clamp(150px, 16vw, 206px);
  height: auto;
}

.transition-footer-brand p {
  margin: 0;
  color: #8db4c1;
  font-size: 14px;
}

.transition-footer-links {
  display: grid;
  grid-template-columns: .9fr .9fr 1.8fr 1fr 1fr;
  gap: 38px;
  padding-bottom: 48px;
}

.transition-footer-links section {
  display: grid;
  align-content: start;
  gap: 10px;
}

.transition-footer-links h2 {
  margin: 0 0 9px;
  color: #fff;
  font-size: 13px;
  letter-spacing: .08em;
  text-transform: uppercase;
}

.transition-footer-links a,
.transition-footer-bottom a {
  color: #9dc2cc;
  font-size: 13px;
  text-decoration: none;
  transition: color .2s ease;
}

.transition-footer-links a:hover,
.transition-footer-links a:focus-visible,
.transition-footer-bottom a:hover,
.transition-footer-bottom a:focus-visible {
  color: #76edcb;
  outline: none;
}

.transition-footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  padding-top: 20px;
  color: #7395a2;
  border-top: 1px solid rgba(157, 204, 214, .16);
  font-size: 12px;
}

.transition-footer-languages {
  display: flex;
  gap: 12px;
}

.transition-footer-social,
.transition-footer-registration {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.transition-footer-registration {
  justify-content: flex-end;
  padding-top: 14px;
}

.transition-footer-registration a {
  color: #7395a2;
  font-size: 11px;
  text-decoration: none;
}

.transition-footer-registration a:hover,
.transition-footer-registration a:focus-visible {
  color: #76edcb;
  outline: none;
}

.download-modal[hidden] {
  display: none;
}

.download-modal {
  position: fixed;
  inset: 0;
  z-index: 100;
  display: grid;
  place-items: center;
  padding: 22px;
}

.download-modal-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(4, 24, 44, .62);
  backdrop-filter: blur(5px);
}

.download-dialog {
  position: relative;
  width: min(100%, 560px);
  padding: clamp(26px, 5vw, 42px);
  color: #143756;
  background: #fafdff;
  border: 1px solid rgba(20, 117, 153, .2);
  border-radius: 22px;
  box-shadow: 0 30px 80px rgba(2, 27, 49, .34);
}

.download-modal-close {
  position: absolute;
  top: 14px;
  right: 15px;
  display: grid;
  place-items: center;
  width: 38px;
  height: 38px;
  color: #507088;
  background: transparent;
  border: 0;
  border-radius: 50%;
  font-size: 27px;
  line-height: 1;
  cursor: pointer;
}

.download-modal-close:hover,
.download-modal-close:focus-visible {
  color: #07548b;
  background: #e8f7fa;
  outline: none;
}

.download-modal-heading {
  display: flex;
  align-items: center;
  gap: 16px;
  padding-right: 24px;
}

.download-modal-kicker {
  margin: 0 0 5px;
  color: #0b91a7;
  font-size: 10px;
  font-weight: 800;
  letter-spacing: .14em;
}

.download-modal h2 {
  margin: 0;
  color: #0b3154;
  font-size: clamp(24px, 4vw, 32px);
  line-height: 1.12;
}

.download-dialog > p {
  margin: 22px 0 18px;
  color: #638096;
  font-size: 14px;
  line-height: 1.55;
}

.download-windows-icon {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3px;
  width: 50px;
  height: 50px;
  padding: 5px;
  color: #fff;
  background: linear-gradient(145deg, #0872ad, #12b8cb);
  border-radius: 13px;
  transform: skewY(-5deg);
}

.download-windows-icon i {
  display: block;
  background: currentColor;
}

.download-option {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  padding: 18px;
  border: 1px solid #d9ebf0;
  border-radius: 13px;
}

.download-option + .download-option {
  margin-top: 10px;
}

.download-option strong,
.download-option small {
  display: block;
}

.download-option strong {
  color: #0b3154;
  font-size: 16px;
}

.download-option small {
  margin-top: 7px;
  color: #6f8898;
  font-size: 12px;
}

.download-recommended {
  display: inline-block;
  margin-left: 8px;
  padding: 4px 7px;
  color: #256c35;
  background: #dff7d6;
  border-radius: 999px;
  font-size: 10px;
  font-weight: 800;
  letter-spacing: .04em;
  text-transform: uppercase;
}

.download-now-button {
  flex: 0 0 auto;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 42px;
  padding: 0 16px;
  color: #fff;
  background: #07548b;
  border: 0;
  border-radius: 9px;
  font-size: 13px;
  font-weight: 700;
  text-align: center;
  text-decoration: none;
  cursor: pointer;
}

.download-now-button:hover,
.download-now-button:focus-visible {
  background: #087ca0;
  outline: 3px solid rgba(0, 215, 235, .2);
  outline-offset: 2px;
}

.download-now-button:disabled {
  cursor: wait;
  opacity: .56;
}

.download-option-disabled {
  color: #8da2ad;
  background: #f5f9fa;
}

.download-option-disabled strong {
  color: #718995;
}

.download-option-disabled > span {
  font-size: 12px;
  font-weight: 700;
}

.download-package-list {
  display: grid;
  gap: 10px;
}

.download-package-list:empty {
  display: none;
}

.download-loading {
  margin: 0 !important;
  color: #638096 !important;
  font-size: 14px !important;
}

.download-package-md5 {
  overflow-wrap: anywhere;
}

.download-modal-status {
  min-height: 20px;
  margin: 16px 0 0 !important;
  color: #b34835 !important;
  font-size: 13px !important;
}

body.download-modal-open {
  overflow: hidden;
}

/* [nav font-size align 2026-08-25] 把 home-nav 文字字号统一到 legacy-home navbar。
   基准:navbar__menu-btn 14px/500,navbar__dropdown-item 14px/400(继承),
        navbar__mobile-link 14px/400,navbar__mobile-title 15px/600。
   原 .primary-nav-overlay a 用 clamp(12px,1.22vw,21px) 在 1440px 桌面算出 ~17px,跟 navbar 14px 不一致。 */
.primary-nav-overlay a,
.home-nav-trigger,
.nav-contact {
  font-size: 14px;
  font-weight: 500;
}
.home-nav-dropdown a {
  font-size: 14px;
  font-weight: 400;
}
.responsive-nav a,
.responsive-nav nav a,
.responsive-nav-languages a {
  font-size: 14px;
}
.responsive-nav-heading {
  font-size: 15px;
  font-weight: 600;
  letter-spacing: .04em;
}

@media (max-width: 1024px) {
  .primary-nav-overlay .home-nav-group {
    display: none;
  }

  .primary-nav-overlay > a:not(.nav-contact) {
    display: none;
  }

  .responsive-nav nav {
    max-height: min(78vh, 600px);
    overflow-y: auto;
  }

  .responsive-nav .nav-contact {
    display: block;
    margin-top: 8px;
    color: #fff;
    background: #07548b;
  }

  .transition-footer-links {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 34px 26px;
  }
}

@media (max-width: 680px) {
  .transition-footer-inner {
    width: min(100% - 32px, 560px);
    padding-top: 48px;
  }

  .transition-footer-brand {
    display: block;
    margin-bottom: 34px;
  }

  .transition-footer-brand p {
    margin-top: 14px;
  }

  .transition-footer-links {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 30px 20px;
  }

  .transition-footer-bottom {
    align-items: flex-start;
    flex-direction: column;
  }

  .transition-footer-registration {
    justify-content: flex-start;
  }

  .download-option {
    align-items: flex-start;
    flex-direction: column;
  }

  .download-now-button {
    width: 100%;
  }
}