/**
 * 全站扁平 UI — 禁用 box-shadow / text-shadow
 * 作为各页面最后加载的样式表，覆盖 Modernize / Bootstrap 默认阴影
 */
:root,
[data-bs-theme='light'],
[data-bs-theme='dark'] {
  --bs-box-shadow: none;
  --bs-box-shadow-sm: none;
  --bs-box-shadow-lg: none;
  --bs-box-shadow-inset: none;
  --bs-card-box-shadow: none;
  --lq-shadow: none;
  --lq-shadow-sm: none;
}

*,
*::before,
*::after {
  box-shadow: none !important;
  text-shadow: none !important;
}

.form-control:focus,
.form-select:focus,
.form-check-input:focus,
.btn:focus-visible,
a:focus-visible,
button:focus-visible,
[role='button']:focus-visible,
[tabindex]:focus-visible {
  outline: 2px solid color-mix(in srgb, var(--bs-primary, #5d87ff) 50%, transparent);
  outline-offset: 2px;
}