#nav .menus_items .menus_item > .menus_item_child {
  min-width: 230px;
  max-height: none;
  padding: 8px 0;
}

#nav .menus_item_child li {
  position: relative;
  white-space: nowrap;
}

#nav .menus_item_child li > .site-page.child {
  box-sizing: border-box;
  display: flex;
  align-items: center;
  gap: 6px;
  min-width: 230px;
  padding: 10px 18px;
  line-height: 1.25;
}

#nav .menus_item_child li.has-submenu > .submenu-title {
  cursor: default;
  justify-content: space-between;
}

#nav .menus_item_child li.has-submenu > a.submenu-title {
  cursor: pointer;
}

#nav .menus_item_child li.has-submenu > .submenu-title .fa-chevron-right {
  margin-left: 16px;
  font-size: 0.78em;
  opacity: 0.65;
}

#nav .menus_item_child li.has-submenu > .third-level {
  position: absolute;
  top: -8px;
  left: 100%;
  display: none;
  min-width: 240px;
  margin: 0 0 0 10px;
  padding: 8px 0;
  background: var(--sidebar-bg);
  box-shadow: 0 5px 20px -4px rgba(0, 0, 0, 0.5);
  border-radius: 5px;
  animation: sub_menus 0.25s ease both;
}

#nav .menus_item_child li.has-submenu > .third-level:before {
  position: absolute;
  top: 0;
  left: -12px;
  width: 12px;
  height: 100%;
  content: '';
}

#nav .menus_item_child li.has-submenu:hover > .third-level {
  display: block;
}

#nav .menus_item_child li:hover > .site-page.child,
#nav .menus_item_child li.has-submenu:hover > .submenu-title {
  color: var(--white) !important;
  background: var(--text-bg-hover);
}

@media screen and (max-width: 900px) {
  #nav .menus_items .menus_item > .menus_item_child,
  #nav .menus_item_child li.has-submenu > .third-level {
    max-height: none;
    overflow: visible;
  }
}

/* Keep third-level flyouts hidden when only the top-level menu is hovered.
   Butterfly's native rule uses `.menus_item:hover .menus_item_child`, which
   otherwise opens every nested list at once. */
#nav .menus_items .menus_item:hover .menus_item_child.third-level {
  display: none;
}

#nav .menus_items .menus_item .menus_item_child li.has-submenu:hover > .third-level {
  display: block;
}

/* Flip flyouts for right-side top menus so third-level panels stay inside viewport. */
#nav .menus_items > .menus_item:nth-last-child(-n + 2) .menus_item_child li.has-submenu > .third-level {
  right: 100%;
  left: auto;
  margin: 0 10px 0 0;
}

#nav .menus_items > .menus_item:nth-last-child(-n + 2) .menus_item_child li.has-submenu > .third-level:before {
  right: -12px;
  left: auto;
}

.zhxx-doc-center {
  width: 100%;
}

.zhxx-doc-overview {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 280px;
  gap: 20px;
  margin-bottom: 24px;
  padding: 30px;
  color: #fff;
  background: linear-gradient(135deg, rgba(26, 50, 93, 0.92), rgba(16, 115, 134, 0.86)), url('https://oss.012700.xyz/butterfly/2024/10/index.jpg') center/cover;
  border-radius: 8px;
  box-shadow: 0 14px 34px rgba(15, 23, 42, 0.16);
}

.zhxx-doc-eyebrow {
  margin-bottom: 10px;
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0;
  opacity: 0.82;
}

.zhxx-doc-overview h2 {
  margin: 0 0 12px;
  color: #fff;
  font-size: 2rem;
  line-height: 1.2;
}

.zhxx-doc-overview p {
  max-width: 680px;
  margin: 0;
  color: rgba(255, 255, 255, 0.82);
  line-height: 1.8;
}

.zhxx-doc-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 22px;
}

.zhxx-doc-actions a {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  min-height: 40px;
  padding: 0 16px;
  color: #fff;
  border-radius: 6px;
}

.zhxx-doc-primary {
  background: #2f9e8f;
}

.zhxx-doc-secondary {
  background: rgba(255, 255, 255, 0.14);
  border: 1px solid rgba(255, 255, 255, 0.26);
}

.zhxx-doc-stats {
  display: grid;
  gap: 12px;
}

.zhxx-doc-stat {
  padding: 16px;
  background: rgba(255, 255, 255, 0.12);
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: 8px;
}

.zhxx-doc-stat strong,
.zhxx-doc-stat span {
  display: block;
}

.zhxx-doc-stat strong {
  color: #fff;
  font-size: 1.8rem;
  line-height: 1;
}

.zhxx-doc-stat span {
  margin-top: 8px;
  color: rgba(255, 255, 255, 0.74);
  font-size: 0.9rem;
}

.zhxx-doc-section {
  margin-bottom: 24px;
}

.zhxx-doc-section-head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 14px;
  margin-bottom: 14px;
}

.zhxx-doc-section-head h3 {
  margin: 0;
  color: var(--font-color);
  font-size: 1.35rem;
}

.zhxx-doc-section-head span {
  color: var(--font-color);
  font-size: 0.9rem;
  opacity: 0.66;
}

.zhxx-doc-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 14px;
}

.zhxx-doc-card,
.zhxx-doc-list-item {
  display: block;
  color: var(--font-color);
  background: var(--card-bg);
  border: 1px solid rgba(127, 127, 127, 0.16);
  border-radius: 8px;
  box-shadow: 0 8px 24px rgba(15, 23, 42, 0.06);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.zhxx-doc-card:hover,
.zhxx-doc-list-item:hover {
  color: var(--font-color);
  transform: translateY(-2px);
  box-shadow: 0 14px 30px rgba(15, 23, 42, 0.12);
}

.zhxx-doc-card {
  padding: 18px;
}

.zhxx-doc-card-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 16px;
}

.zhxx-doc-card-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 34px;
  height: 34px;
  color: #fff;
  background: #2f9e8f;
  border-radius: 6px;
}

.zhxx-doc-card-count {
  color: var(--font-color);
  font-size: 0.82rem;
  opacity: 0.68;
}

.zhxx-doc-card h4,
.zhxx-doc-list-item h4 {
  margin: 0;
  color: var(--font-color);
  font-size: 1.05rem;
  line-height: 1.35;
}

.zhxx-doc-card p,
.zhxx-doc-list-item p {
  display: -webkit-box;
  margin: 10px 0 0;
  overflow: hidden;
  color: var(--font-color);
  line-height: 1.7;
  opacity: 0.68;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 3;
}

.zhxx-doc-list {
  display: grid;
  gap: 12px;
}

.zhxx-doc-list-item {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 18px;
  padding: 18px;
}

.zhxx-doc-list-main {
  min-width: 0;
}

.zhxx-doc-list-meta {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  justify-content: center;
  gap: 8px;
  min-width: 110px;
  color: var(--font-color);
  font-size: 0.84rem;
  opacity: 0.72;
}

.zhxx-doc-list-meta span {
  padding: 3px 8px;
  background: rgba(47, 158, 143, 0.12);
  border-radius: 5px;
}

.post .article-entry img {
  max-width: 100%;
  height: auto !important;
}

.post .article-entry table {
  display: block;
  max-width: 100%;
  overflow-x: auto;
}

@media screen and (max-width: 768px) {
  .zhxx-doc-overview,
  .zhxx-doc-list-item {
    grid-template-columns: 1fr;
  }

  .zhxx-doc-overview {
    padding: 22px;
  }

  .zhxx-doc-overview h2 {
    font-size: 1.55rem;
  }

  .zhxx-doc-section-head {
    align-items: flex-start;
    flex-direction: column;
  }

  .zhxx-doc-list-meta {
    align-items: flex-start;
    min-width: 0;
  }
}