/* 日期計算：三個小表單與結果區；共用元件沿用 site.css */
#dc-form [hidden], #da-form [hidden], #dw-form [hidden] { display: none !important; }
.dc-checks { display: flex; flex-direction: column; gap: 4px; margin: 8px 0; }
.dc-check { display: flex; align-items: center; gap: 8px; min-height: 44px; font-size: 1rem; cursor: pointer; }
.dc-check input { width: 22px; height: 22px; flex: none; }
.dc-units { display: grid; grid-template-columns: repeat(4, 1fr); gap: 0 8px; }
.dc-units label { justify-content: center; padding: 10px 4px; }
.dc-units small { display: none; }
.dc-out { font-size: 1.35rem !important; }
#dc-result td, #dw-result td { font-variant-numeric: tabular-nums; }
@media (max-width: 480px) { .dc-units { grid-template-columns: 1fr 1fr; } }