/* 全站统一顶部导航 · 二级菜单 */
#platformNav {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-shrink: 0;
}

.platform-brand {
  font-size: 15px;
  font-weight: 600;
  color: #fff;
  text-decoration: none;
  white-space: nowrap;
  margin-right: 4px;
  padding: 4px 0;
}

.platform-brand:hover {
  color: #e8e8e8;
}

.platform-nav-menu {
  display: flex;
  align-items: center;
  gap: 4px;
}

.platform-nav-item {
  position: relative;
}

.platform-nav-trigger {
  display: flex;
  align-items: center;
  gap: 4px;
  background: transparent;
  color: #bbb;
  border: none;
  padding: 6px 12px;
  border-radius: 6px;
  cursor: pointer;
  font-size: 14px;
  font-family: inherit;
  white-space: nowrap;
  line-height: 1.3;
}

.platform-nav-trigger::after {
  content: '';
  width: 0;
  height: 0;
  border-left: 4px solid transparent;
  border-right: 4px solid transparent;
  border-top: 5px solid currentColor;
  opacity: 0.7;
  margin-top: 2px;
}

.platform-nav-trigger:hover,
.platform-nav-item.open .platform-nav-trigger {
  color: #fff;
  background: #3a3a3a;
}

.platform-nav-item.has-active .platform-nav-trigger {
  color: #fff;
}

.platform-nav-dropdown {
  display: none;
  position: absolute;
  top: 100%;
  left: 0;
  min-width: 188px;
  padding-top: 6px;
  z-index: 200;
}

.platform-nav-item.open .platform-nav-dropdown {
  display: block;
}

.platform-nav-panel {
  background: #383838;
  border: 1px solid #4a4a4a;
  border-radius: 8px;
  padding: 6px;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.35);
}

.platform-nav-dropdown a {
  display: flex;
  flex-direction: column;
  gap: 2px;
  color: #ccc;
  font-size: 13px;
  text-decoration: none;
  padding: 8px 12px;
  border-radius: 6px;
  line-height: 1.3;
}

.platform-nav-desc {
  font-size: 11px;
  color: #999;
  font-weight: normal;
}

.platform-nav-dropdown a:hover {
  color: #fff;
  background: #4a4a4a;
}

.platform-nav-dropdown a.active {
  background: #07c160;
  color: #fff;
}

.platform-nav-dropdown a.active .platform-nav-desc {
  color: rgba(255, 255, 255, 0.85);
}

/* 企微后台：顶栏一级菜单右侧横向 Tab（同 QiWe 页） */
.platform-nav-tabs {
  display: flex;
  align-items: center;
  gap: 6px;
  flex-wrap: wrap;
  border-left: 1px solid #555;
  padding-left: 12px;
  margin-left: 4px;
}

.platform-nav-tabs a {
  background: transparent;
  color: #bbb;
  border: none;
  padding: 6px 14px;
  border-radius: 6px;
  cursor: pointer;
  font-size: 14px;
  text-decoration: none;
  white-space: nowrap;
  line-height: 1.3;
}

.platform-nav-tabs a:hover {
  color: #fff;
  background: #3a3a3a;
}

.platform-nav-tabs a.active {
  background: #07c160;
  color: #fff;
}

/* 全站导航与页内 Tab 分隔 */
header > .tabs {
  border-left: 1px solid #555;
  padding-left: 12px;
  margin-left: 4px;
}

body.locked #platformNav .platform-nav-menu,
body.locked #platformWecomAdminTabs,
body.locked header .tabs {
  visibility: hidden;
}