*{box-sizing:border-box;margin:0;padding:0}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;background:#f0f2f5;color:#1a1a1a;font-size:14px}.app{max-width:1400px;margin:0 auto;padding:16px}h1{text-align:center;font-size:1.5em;margin-bottom:16px;color:#111}h2{font-size:1.05em;margin-bottom:10px;color:#333;border-bottom:1px solid #e0e0e0;padding-bottom:6px}h3{font-size:.95em;color:#444;margin-bottom:4px}.layout{display:grid;grid-template-columns:1fr 1.3fr;gap:16px;align-items:start}.panel{background:#fff;border-radius:8px;padding:16px;box-shadow:0 1px 3px #00000014}.section{margin-bottom:20px}.section:last-child{margin-bottom:0}.product-grid{display:flex;flex-direction:column;gap:6px}.product-card{display:flex;justify-content:space-between;align-items:center;padding:8px 10px;border:1px solid #eee;border-radius:6px}.product-info{display:flex;flex-direction:column;gap:2px}.product-name{font-weight:500}.product-meta{font-size:.85em;color:#666;display:flex;align-items:center;gap:6px}.type-badge{display:inline-block;font-size:.75em;padding:1px 6px;border-radius:3px;font-weight:500}.type-badge.own{background:#e8f5e9;color:#2e7d32}.type-badge.select{background:#fff3e0;color:#e65100}.qty-controls{display:flex;align-items:center;gap:8px}.qty-controls button{width:28px;height:28px;border:1px solid #ccc;border-radius:4px;background:#fff;cursor:pointer;font-size:1em}.qty-controls button:hover{background:#f5f5f5}.qty-controls button:disabled{opacity:.3;cursor:default}.qty{min-width:20px;text-align:center;font-weight:600}.form-row{display:flex;align-items:flex-start;gap:10px;margin-bottom:10px}.form-row label{min-width:110px;padding-top:6px;font-size:.9em;color:#555}.form-row select,.form-row input[type=number]{flex:1;padding:6px 8px;border:1px solid #ccc;border-radius:4px;font-size:.9em}.coupon-inputs{flex:1;display:flex;flex-direction:column;gap:4px}.coupon-row{display:flex;gap:4px}.coupon-row input{flex:1;padding:6px 8px;border:1px solid #ccc;border-radius:4px;font-size:.9em}.btn-remove{width:28px;height:28px;border:none;background:#fee;color:#c00;border-radius:4px;cursor:pointer}.btn-small{align-self:flex-start;padding:4px 10px;border:1px dashed #aaa;background:none;border-radius:4px;cursor:pointer;font-size:.85em;color:#666}.btn-small:hover{border-color:#666;color:#333}.activity-row{display:flex;justify-content:space-between;align-items:center;padding:6px 0;border-bottom:1px solid #f5f5f5}.switch-label{display:flex;align-items:center;gap:6px;cursor:pointer}.switch-label input{cursor:pointer}.activity-name{font-size:.9em}.activity-meta{font-size:.8em;color:#888}.btn-calculate{width:100%;padding:12px;background:#1a73e8;color:#fff;border:none;border-radius:6px;font-size:1em;font-weight:600;cursor:pointer;margin-top:12px}.btn-calculate:hover{background:#1557b0}.placeholder{display:flex;align-items:center;justify-content:center;min-height:300px;color:#999;font-size:1.1em}.flow-steps{display:flex;flex-direction:column;align-items:center;gap:2px}.flow-step{width:100%;padding:10px 14px;background:#f8f9fa;border-radius:6px;text-align:center}.flow-step.final{background:#e8f5e9}.step-label{font-size:.8em;color:#666;margin-bottom:2px}.step-value{font-weight:600;font-size:1.1em}.step-value.large{font-size:1.4em;color:#2e7d32}.step-extra{font-size:.8em;color:#888;margin-top:2px}.flow-arrow{font-size:.85em;color:#e53935;padding:2px 0}.flow-arrow span{font-weight:500}.gift-item{padding:6px 10px;background:#fff8e1;border-radius:4px;margin-bottom:4px}.gift-reason{font-size:.85em;color:#888}.erp-table-wrap{overflow-x:auto}.erp-table{width:100%;border-collapse:collapse;font-size:.85em}.erp-table th,.erp-table td{padding:6px 8px;border-bottom:1px solid #eee;text-align:left}.erp-table th{background:#f5f5f5;font-weight:600;font-size:.9em;color:#555}.erp-table .num{text-align:right;font-variant-numeric:tabular-nums}.erp-table .discount{color:#e53935}.erp-table .final{font-weight:600}.erp-table .large{font-size:1.1em}.erp-table tfoot td{border-top:2px solid #ddd;font-weight:600}.grand-total-row td{background:#f0f7f0}.item-detail{margin-bottom:12px;padding:8px 10px;background:#fafafa;border-radius:6px}.detail-list{margin-top:4px}.detail-row{display:flex;align-items:center;gap:8px;padding:3px 0}.badge{display:inline-block;width:20px;height:20px;line-height:20px;text-align:center;border-radius:50%;font-size:.75em;font-weight:700;color:#fff}.badge.layer1{background:#1a73e8}.discount-val{margin-left:auto;color:#e53935;font-weight:500}.detail-note{font-size:.85em;color:#888;margin-top:4px}@media (max-width: 900px){.layout{grid-template-columns:1fr}}.step-shipping{font-size:.85em;margin-top:4px;color:#555}.free-shipping{color:#2e7d32;font-weight:600}.step-breakdown{font-size:.85em;color:#555;margin-top:2px}.product-main{display:flex;justify-content:space-between;align-items:center}.product-promos{display:flex;flex-wrap:wrap;gap:4px;margin-top:6px;padding-top:6px;border-top:1px dashed #e8e8e8}.promo-tag{display:inline-flex;align-items:center;gap:2px;font-size:.75em;padding:2px 6px;border-radius:3px;white-space:nowrap}.promo-tag.product{background:#e3f2fd;color:#1565c0}.promo-tag.order{background:#f3e5f5;color:#7b1fa2}.promo-tag.needs-coupon{border:1px dashed currentColor}.coupon-icon{font-size:.9em}.order-promos{display:flex;flex-wrap:wrap;gap:6px}.empty-note{font-size:.85em;color:#999}.refund-section{border-top:2px solid #e0e0e0;padding-top:16px}.return-items{margin:10px 0}.form-row-label{font-size:.9em;color:#555;margin-bottom:6px}.return-item-row{display:flex;justify-content:space-between;align-items:center;padding:4px 0}.return-item-name{font-size:.9em}.btn-refund{width:100%;padding:10px;background:#e53935;color:#fff;border:none;border-radius:6px;font-size:.95em;font-weight:600;cursor:pointer;margin-top:8px}.btn-refund:hover{background:#c62828}.refund-result{margin-top:16px}.refund-result h3{font-size:1em;margin-bottom:10px}.refund-result h4{font-size:.9em;color:#555;margin:10px 0 4px}.surcharge-alert{background:#fff3e0;border:1px solid #ffb74d;border-radius:6px;padding:10px;font-size:.9em}.surcharge-amount{font-weight:700;color:#e65100;margin-top:4px}.refund-breakdown{background:#f5f5f5;border-radius:6px;padding:10px}.refund-row{display:flex;justify-content:space-between;padding:4px 0;font-size:.9em}.refund-row.total{border-top:1px solid #ddd;padding-top:8px;margin-top:4px;font-weight:700}.refund-val{font-weight:600}.refund-val.points{color:#1565c0}.refund-val.credit{color:#2e7d32}.refund-val.cash{color:#e53935}.refund-item{font-size:.9em;padding:2px 0}.shipping-change{font-size:.9em}.shipping-up{color:#e53935;font-weight:500}.shipping-down{color:#2e7d32;font-weight:500}.dc-row{display:flex;gap:8px;align-items:center;font-size:.85em;padding:2px 0}.dc-layer{font-weight:600;min-width:90px}.compare-table{width:100%;border-collapse:collapse;font-size:.85em;margin-top:4px}.compare-table th,.compare-table td{padding:4px 8px;border-bottom:1px solid #eee;text-align:left}.compare-table th{background:#f5f5f5;font-weight:600}.compare-table .num{text-align:right}.activity-row{padding:8px 0;border-bottom:1px solid #f0f0f0}.activity-left{display:flex;flex-direction:column;gap:4px}.activity-tags{display:flex;flex-wrap:wrap;gap:4px;padding-left:22px}.activity-level-tag{font-size:.7em;padding:1px 5px;border-radius:3px;font-weight:600}.activity-level-tag.product{background:#e3f2fd;color:#1565c0}.activity-level-tag.order{background:#f3e5f5;color:#7b1fa2}.stack-tag{font-size:.7em;padding:1px 5px;border-radius:3px;font-weight:600}.stack-tag.stackable{background:#e8f5e9;color:#2e7d32}.stack-tag.exclusive{background:#fff3e0;color:#e65100}.group-tag{font-size:.7em;padding:1px 5px;border-radius:3px;background:#f5f5f5;color:#666;font-family:monospace}.coupon-tag-small{font-size:.7em;padding:1px 5px;border-radius:3px;background:#fce4ec;color:#c62828}.reward-item{display:flex;align-items:center;gap:8px;padding:6px 10px;background:#e8f5e9;border-radius:4px;margin-bottom:4px}.reward-name{font-weight:600;font-size:.9em}.reward-desc{font-size:.85em;color:#555}.reward-lottery-badge{font-size:.75em;padding:2px 6px;background:#fff3e0;color:#e65100;border-radius:3px;font-weight:600}