/* 子页面布局：内容较少时页脚贴齐视口底部 */
.official-page {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
  min-height: 100dvh;
}

.official-page__main {
  flex: 1 0 auto;
}

/* ---- 产品导航 Mega Menu（全站加载，不依赖 enableEffects） ---- */
.nav-product-mega {
  min-width: 0;
}

.nav-product-mega__grid {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.nav-product-mega__col {
  min-width: 0;
}

.nav-product-mega__heading {
  display: block;
  margin-bottom: 0.5rem;
  padding: 0.25rem 0.5rem;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--color-dark, #111928);
  text-decoration: none;
  white-space: nowrap;
  transition: color 0.2s ease;
}

.dark .nav-product-mega__heading {
  color: #fff;
}

.nav-product-mega__heading:hover {
  color: var(--color-primary, #3056d3);
}

.nav-product-mega__items,
.nav-product-mega__flat {
  display: flex;
  flex-wrap: wrap;
  gap: 0.375rem 0.625rem;
}

.nav-product-mega__link {
  display: inline-block;
  padding: 0.375rem 0.625rem;
  border-radius: 0.375rem;
  font-size: 0.8125rem;
  line-height: 1.4;
  color: var(--color-body-color, #637381);
  text-decoration: none;
  white-space: nowrap;
  transition: color 0.2s ease, background-color 0.2s ease;
}

.dark .nav-product-mega__link {
  color: var(--color-dark-6, #9ca3af);
}

.nav-product-mega__link:hover,
.nav-product-mega__link.is-active {
  color: var(--color-primary, #3056d3);
  background: color-mix(in oklab, var(--color-primary, #3056d3) 8%, transparent);
}

.nav-product-mega__subgroup {
  display: flex;
  flex-direction: column;
  gap: 0.125rem;
  margin-bottom: 0.375rem;
}

.nav-product-mega__subheading {
  display: block;
  padding: 0.375rem 0.625rem 0.125rem;
  font-size: 0.8125rem;
  font-weight: 600;
  line-height: 1.4;
  color: var(--color-dark, #111928);
  text-decoration: none;
  transition: color 0.2s ease;
}

.dark .nav-product-mega__subheading {
  color: #fff;
}

.nav-product-mega__subheading:hover,
.nav-product-mega__subheading.is-active {
  color: var(--color-primary, #3056d3);
}

.nav-product-mega__link--nested {
  padding-left: 1rem;
}

.nav-product-mega__footer {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.75rem 1.25rem;
  margin-top: 1rem;
  padding-top: 0.875rem;
  border-top: 1px solid var(--color-stroke, #dfe4ea);
}

.dark .nav-product-mega__footer {
  border-top-color: var(--color-dark-3, #374151);
}

.nav-product-mega__footer-link {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--color-body-color, #637381);
  text-decoration: none;
  white-space: nowrap;
  transition: color 0.2s ease;
}

.dark .nav-product-mega__footer-link {
  color: var(--color-dark-6, #9ca3af);
}

.nav-product-mega__footer-link:hover,
.nav-product-mega__footer-link.is-active {
  color: var(--color-primary, #3056d3);
}

@media (width < 1024px) {
  .submenu--products {
    width: 100%;
  }
}

@media (width >= 1024px) {
  .ud-header #navbarCollapse,
  .ud-header #navbarCollapse > ul {
    overflow: visible;
  }

  .ud-header .submenu-item {
    position: relative;
    z-index: 20;
  }

  .ud-header .submenu-item:hover,
  .ud-header .submenu-item:focus-within {
    z-index: 30;
  }

  /* 负 margin + 内边距桥接：鼠标从一级项移入二级时不丢 hover */
  .ud-header .submenu {
    z-index: 40;
    margin-top: -0.625rem;
    padding-top: 0.625rem;
    opacity: 1;
    pointer-events: none;
  }

  .ud-header .submenu::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 0.625rem;
  }

  .ud-header .submenu-item:hover .submenu,
  .ud-header .submenu-item:focus-within .submenu {
    pointer-events: auto;
  }

  .submenu--products {
    padding: 1.25rem 1.5rem;
    /* 不继承 li 窄宽，避免中文逐字竖排 */
    width: min(920px, calc(100vw - 2rem));
    min-width: 42rem;
  }

  .nav-product-mega__grid {
    flex-direction: row;
    gap: 0;
    align-items: flex-start;
  }

  .nav-product-mega__col {
    flex: 1 1 0;
    min-width: 9.5rem;
    padding: 0 1.25rem;
    border-right: 1px solid var(--color-stroke, #dfe4ea);
  }

  .nav-product-mega__items {
    flex-direction: column;
    flex-wrap: nowrap;
    align-items: stretch;
    gap: 0.125rem;
  }

  .nav-product-mega__link {
    display: block;
    width: 100%;
  }

  .nav-product-mega__col:first-child {
    padding-left: 0;
  }

  .nav-product-mega__col:last-child {
    padding-right: 0;
    border-right: none;
  }

  .dark .nav-product-mega__col {
    border-right-color: var(--color-dark-3, #374151);
  }
}