/* 界面语言：SVG 国旗 + 全称（避免 Windows 将 emoji 区旗显示为 US/EN 等字母） */
.ui-lang-picker {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
  justify-content: flex-end;
  position: relative;
}
.ui-lang-picker-label {
  font-size: 12px;
  font-weight: 600;
  color: #64748b;
  margin: 0;
}
.admin-topbar .ui-lang-picker-label {
  color: var(--text-muted, #64748b);
}
.ui-lang-picker-wrap {
  position: relative;
}
.ui-lang-picker-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 10px;
  border-radius: 8px;
  border: 1px solid #e2e8f0;
  background: #fff;
  font-size: 13px;
  font-weight: 600;
  color: #0f172a;
  cursor: pointer;
  min-width: 10.5rem;
  justify-content: flex-start;
  text-align: left;
}
.admin-topbar .ui-lang-picker-btn {
  border-color: var(--card-border, #e2e8f0);
  background: var(--card-bg, #fff);
  color: var(--text, #0f172a);
}
.ui-lang-picker-btn:hover {
  border-color: #cbd5e1;
  background: #f8fafc;
}
.ui-lang-picker-btn:focus {
  outline: none;
}
.ui-lang-picker-btn:focus-visible {
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.25);
}
.ui-lang-picker-flag {
  width: 22px;
  height: 15px;
  object-fit: cover;
  border-radius: 2px;
  flex-shrink: 0;
  box-shadow: 0 0 0 1px rgba(15, 23, 42, 0.08);
}
.ui-lang-picker-caret {
  margin-left: auto;
  font-size: 10px;
  opacity: 0.65;
}
.ui-lang-picker-menu {
  position: absolute;
  right: 0;
  top: calc(100% + 4px);
  z-index: 200;
  min-width: 100%;
  margin: 0;
  padding: 4px 0;
  list-style: none;
  background: #fff;
  border: 1px solid #e2e8f0;
  border-radius: 10px;
  box-shadow: 0 12px 28px rgba(15, 23, 42, 0.12);
}
.admin-topbar .ui-lang-picker-menu {
  background: var(--card-bg, #fff);
  border-color: var(--card-border, #e2e8f0);
}
.ui-lang-picker-menu[hidden] {
  display: none !important;
}
.ui-lang-picker-item {
  display: flex;
  align-items: center;
  gap: 10px;
  width: 100%;
  padding: 8px 12px;
  border: none;
  background: transparent;
  font-size: 13px;
  font-weight: 600;
  color: #0f172a;
  cursor: pointer;
  text-align: left;
}
.ui-lang-picker-item:hover {
  background: #f1f5f9;
}
.ui-lang-picker-item.is-active {
  background: #eff6ff;
  color: #1d4ed8;
}