/* 象棋專用樣式；分頁沿用 site.css 的 .qr-tabs */
.xq-tabs2 { grid-template-columns: repeat(2, 1fr); }
.xq-opt-label { margin: 10px 0 -6px; font-weight: 600; font-size: .95rem; color: var(--muted); }
.xq-info { display: flex; justify-content: space-between; gap: 8px; margin: 8px auto 6px; max-width: 480px; font-size: 1.02rem; }
.xq-info strong { color: var(--brand-dark); }
.xq-board { max-width: 480px; margin: 0 auto; }
.xq-board svg { display: block; width: 100%; height: auto; touch-action: manipulation; user-select: none; -webkit-user-select: none; -webkit-tap-highlight-color: transparent; cursor: pointer; border-radius: 8px; box-shadow: 0 1px 4px rgba(0,0,0,.25); }
.xq-tools { display: grid; grid-template-columns: repeat(3, 1fr); gap: 8px; max-width: 480px; margin: 8px auto; }
.xq-tools .btn { min-height: 46px; padding: 0 4px; }
.xq-tools .btn[aria-pressed="true"] { background: #eff4ff; border-color: var(--brand-dark); }
#xq-status { text-align: center; font-weight: 600; max-width: 480px; margin-left: auto; margin-right: auto; }
.qr-tabs button, .xq-tools { user-select: none; -webkit-user-select: none; }