/* =====================================================
   [WE-SHOP-PRODUCT-BUNDLE-UI-20260705]
   前台商品組合彈窗：專業電商加購 UI
===================================================== */
.ws-bundle-backdrop{position:fixed;inset:0;background:rgba(15,23,42,.55);display:none;align-items:center;justify-content:center;z-index:9998;padding:18px}.ws-bundle-backdrop.show{display:flex}.ws-bundle-modal{width:min(920px,100%);max-height:92vh;overflow:auto;background:#fff;border-radius:20px;box-shadow:0 30px 80px rgba(15,23,42,.35);font-family:Arial,"Microsoft JhengHei",sans-serif}.ws-bundle-head{display:flex;justify-content:space-between;align-items:flex-start;gap:16px;padding:22px 26px;border-bottom:1px solid #e5e7eb;background:linear-gradient(135deg,#fff7ed,#eff6ff)}.ws-bundle-head h2{margin:0;color:#0f172a;font-size:24px}.ws-bundle-head p{margin:6px 0 0;color:#64748b;line-height:1.6}.ws-bundle-close{border:0;background:#0f172a;color:#fff;width:38px;height:38px;border-radius:999px;font-size:24px;line-height:1;cursor:pointer}.ws-bundle-body{padding:22px 26px}.ws-bundle-tabs{display:flex;gap:10px;flex-wrap:wrap;margin-bottom:18px}.ws-bundle-tab{border:1px solid #cbd5e1;background:#fff;color:#334155;border-radius:999px;padding:9px 14px;cursor:pointer}.ws-bundle-tab.active{background:#2563eb;color:#fff;border-color:#2563eb}.ws-bundle-main{display:grid;grid-template-columns:78px 1fr auto;gap:14px;align-items:center;background:#f8fafc;border:1px solid #e2e8f0;border-radius:16px;padding:14px;margin-bottom:16px}.ws-bundle-main img,.ws-bundle-item img{width:72px;height:58px;object-fit:cover;border-radius:10px;background:#e5e7eb}.ws-bundle-main-title{font-weight:800;color:#0f172a}.ws-bundle-price{font-weight:800;color:#dc2626;white-space:nowrap}.ws-bundle-item{display:grid;grid-template-columns:34px 72px 1fr auto;gap:12px;align-items:center;padding:13px;border:1px solid #e5e7eb;border-radius:14px;margin-bottom:10px;background:#fff;transition:.15s}.ws-bundle-item:hover{border-color:#93c5fd;box-shadow:0 8px 22px rgba(37,99,235,.08)}.ws-bundle-item input{width:20px;height:20px}.ws-bundle-item-title{font-weight:700;color:#1f2937;margin-bottom:4px}.ws-bundle-item-meta{font-size:13px;color:#64748b}.ws-bundle-required{display:inline-block;background:#fee2e2;color:#991b1b;border-radius:999px;padding:2px 7px;font-size:12px;margin-left:6px}.ws-bundle-save{display:inline-block;background:#dcfce7;color:#166534;border-radius:999px;padding:2px 7px;font-size:12px;margin-left:6px}.ws-bundle-summary{position:sticky;bottom:0;background:#fff;border-top:1px solid #e5e7eb;padding:16px 26px;display:grid;grid-template-columns:1fr auto;gap:14px;align-items:center}.ws-bundle-total{line-height:1.8;color:#334155}.ws-bundle-total strong{font-size:22px;color:#dc2626}.ws-bundle-saving{color:#15803d;font-weight:700}.ws-bundle-actions{display:flex;gap:10px;flex-wrap:wrap;justify-content:flex-end}.ws-bundle-btn{border:0;border-radius:12px;padding:12px 18px;font-size:16px;cursor:pointer;text-decoration:none;display:inline-block}.ws-bundle-btn-primary{background:#f97316;color:#fff}.ws-bundle-btn-primary:hover{background:#ea580c}.ws-bundle-btn-secondary{background:#e2e8f0;color:#0f172a}.ws-bundle-loading{padding:24px;color:#64748b;text-align:center}.ws-bundle-error{padding:14px;background:#fef2f2;color:#991b1b;border-radius:12px;margin-bottom:14px}.ws-bundle-badge{display:inline-block;background:#ffedd5;color:#c2410c;border-radius:999px;padding:4px 9px;font-size:13px;font-weight:700;margin-left:8px}@media(max-width:720px){.ws-bundle-main{grid-template-columns:64px 1fr}.ws-bundle-main .ws-bundle-price{grid-column:2}.ws-bundle-item{grid-template-columns:32px 62px 1fr}.ws-bundle-item .ws-bundle-price{grid-column:3}.ws-bundle-summary{grid-template-columns:1fr}.ws-bundle-actions{justify-content:stretch}.ws-bundle-btn{width:100%}}