/* 年齡計算：生日欄位與結果表；共用元件沿用 site.css */
#ac-form [hidden] { display: none !important; }
.ac-ymd { display: grid; grid-template-columns: 1.4fr 1fr 1fr; gap: 0 10px; }
.ac-ymd > * { min-width: 0; }
.ac-modes { display: grid; grid-template-columns: repeat(3, 1fr); gap: 0 8px; }
.ac-modes legend { grid-column: 1 / -1; }
.ac-modes label { justify-content: center; padding: 10px 4px; }
#ac-result td { font-variant-numeric: tabular-nums; }
@media (max-width: 480px) { .ac-modes { grid-template-columns: 1fr; } .ac-ymd { grid-template-columns: 1.3fr 1fr 1fr; } }