:root{--bg: #0f1419;--surface: #1a2332;--border: #2d3a4f;--text: #e7ecf3;--muted: #8b9cb3;--accent: #3b82f6;--accent-hover: #2563eb;--success: #22c55e;--warning: #f59e0b;--danger: #ef4444}*{box-sizing:border-box}body{margin:0;font-family:system-ui,-apple-system,Segoe UI,Tahoma,sans-serif;background:var(--bg);color:var(--text);line-height:1.5}a{color:var(--accent)}input,select,button{font:inherit}input,select{background:var(--surface);border:1px solid var(--border);color:var(--text);padding:.5rem .75rem;border-radius:6px}button{background:var(--accent);color:#fff;border:none;padding:.5rem 1rem;border-radius:6px;cursor:pointer}button:hover{background:var(--accent-hover)}button.secondary{background:var(--surface);border:1px solid var(--border);color:var(--text)}button.secondary:hover{background:var(--border)}.layout{max-width:1400px;margin:0 auto;padding:1rem 1.5rem}.nav{display:flex;gap:1rem;align-items:center;padding:1rem 0;border-bottom:1px solid var(--border);margin-bottom:1.5rem}.nav a{text-decoration:none;color:var(--muted)}.nav a.active{color:var(--accent);font-weight:600}.card{background:var(--surface);border:1px solid var(--border);border-radius:10px;padding:1.25rem}.filters{display:flex;flex-wrap:wrap;gap:.75rem;margin-bottom:1rem;align-items:end}.filters label{display:flex;flex-direction:column;gap:.25rem;font-size:.85rem;color:var(--muted)}.product-table{width:100%;border-collapse:collapse}.product-table th,.product-table td{padding:.6rem .5rem;border-bottom:1px solid var(--border);text-align:right;vertical-align:middle}.product-table th{color:var(--muted);font-weight:500;font-size:.85rem}.th-sort{display:inline-flex;align-items:center;gap:.35rem;background:none;border:none;color:var(--muted);padding:0;font-size:.85rem;font-weight:500;cursor:pointer;white-space:nowrap}.th-sort:hover{color:var(--text);background:none}.th-sort-active{color:var(--accent);font-weight:600}.th-sort-arrow{font-size:.75rem;opacity:.85;min-width:.85rem}.vendor-multi{position:relative;min-width:11rem}.vendor-multi-label{display:flex;flex-direction:column;gap:.25rem;font-size:.85rem;color:var(--muted)}.vendor-multi-trigger{display:flex;align-items:center;justify-content:space-between;gap:.5rem;width:100%;min-width:10rem;max-width:14rem;text-align:right;background:var(--surface);border:1px solid var(--border);color:var(--text);padding:.5rem .75rem;border-radius:6px}.vendor-multi-trigger:hover,.vendor-multi-trigger.open{border-color:var(--accent);background:var(--surface)}.vendor-multi-trigger-text{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.vendor-multi-caret{color:var(--muted);font-size:.7rem}.vendor-multi-panel{position:absolute;z-index:40;top:calc(100% + 4px);right:0;min-width:16rem;max-width:22rem;max-height:16rem;overflow:auto;background:var(--surface);border:1px solid var(--border);border-radius:8px;padding:.5rem;box-shadow:0 8px 24px #0006}.vendor-multi-actions{display:flex;gap:.35rem;margin-bottom:.5rem;padding-bottom:.5rem;border-bottom:1px solid var(--border)}.vendor-multi-mini{padding:.25rem .5rem;font-size:.75rem}.vendor-multi-list{list-style:none;margin:0;padding:0}.vendor-multi-option{display:flex;align-items:center;gap:.5rem;padding:.35rem .25rem;cursor:pointer;font-size:.85rem;color:var(--text)}.vendor-multi-option:hover{background:#3b82f614;border-radius:4px}.vendor-multi-empty{margin:.5rem 0;font-size:.8rem;color:var(--muted)}.vendor-multi-chips{display:flex;flex-wrap:wrap;gap:.35rem;margin-top:.35rem;max-width:14rem}.vendor-chip{background:#3b82f626;border:1px solid var(--accent);color:var(--accent);padding:.15rem .45rem;border-radius:999px;font-size:.72rem;cursor:pointer}.vendor-chip:hover{background:#3b82f647}.product-img{width:48px;height:48px;object-fit:cover;border-radius:6px;background:var(--bg)}.badge{display:inline-block;padding:.15rem .5rem;border-radius:4px;font-size:.75rem}.badge.active{background:#22c55e33;color:var(--success)}.badge.missing{background:#f59e0b33;color:var(--warning)}.badge.unlinked{background:#8b9cb333;color:var(--muted)}.badge.recommend{background:#3b82f633;color:var(--accent);margin-top:.25rem}.login-box{max-width:360px;margin:4rem auto}.qty-input{width:70px}.price-range{font-size:.85rem;line-height:1.35;min-width:7rem}.price-range-main{font-weight:600}.price-range-meta{color:var(--muted);font-size:.75rem;margin-top:.15rem}.price-range-hint{color:var(--accent, #3b82f6);font-size:.7rem;margin-top:.2rem;max-width:11rem}.wave-cell{min-width:400px;width:28%}.wave-chart-wrap{min-width:380px}.wave-chart-flat-banner{font-size:.72rem;color:var(--muted);margin-bottom:.25rem;padding:0 .15rem}.wave-chart-empty{min-width:120px;color:var(--muted)}.wave-chart-single{font-size:.85rem;padding:.25rem 0}.wave-chart-single-meta{color:var(--muted);font-size:.75rem;margin-top:.2rem}.wave-tooltip{background:var(--surface);border:1px solid var(--border);border-radius:8px;padding:.5rem .65rem;font-size:.8rem;line-height:1.45;box-shadow:0 4px 12px #00000059}.wave-supplier-legend{display:flex;flex-wrap:wrap;gap:.5rem .85rem;margin-top:.35rem;padding:0 .15rem;font-size:.7rem;color:var(--muted)}.wave-supplier-legend-item{display:inline-flex;align-items:center;gap:.35rem;max-width:100%}.wave-supplier-dot{width:8px;height:8px;border-radius:50%;flex-shrink:0}.message{padding:.75rem;border-radius:6px;margin-bottom:1rem}.message.error{background:#ef444426;color:var(--danger)}.message.success{background:#22c55e26;color:var(--success)}.toolbar{display:flex;flex-wrap:wrap;gap:.5rem;margin-bottom:1rem;align-items:center}.virtual-list{height:calc(100vh - 280px);overflow:auto}