.ffh-group-notice {
    box-sizing: border-box;
    margin: 1rem;
    padding: 1rem;
    max-inline-size: 64rem;
    border: 1px solid var(--cl-ui-line, currentColor);
    border-radius: 6px;
    background: var(--cl-ui-panel, Canvas);
    color: var(--cl-ui-ink, CanvasText);
    overflow-wrap: anywhere;
}
.ffh-group-notice[hidden] { display: none; }
.ffh-group-notice h2 { font-size: 1.25rem; margin-block: 0 0.75rem; }
.ffh-group-notice p { margin-block: 0.75rem; }
.ffh-group-notice button { min-block-size: 44px; cursor: pointer; }
.ffh-group-notice :is(a, button):focus-visible { outline: 3px solid currentColor; outline-offset: 3px; }