{"skills":[{"slug":"breakeven","price":0.2,"desc":"保本点计算器：算保本销量/目标利润销量/保本售价"},{"slug":"returns","price":0.2,"desc":"退货率与退款成本测算：真实毛利/保本退货率"},{"slug":"fba-fee","price":0.2,"desc":"FBA 费用推算：配送费档位 + 佣金"}]}