鲜菜鲜果涨价支撑食品改善，服务价格相对稳固

Group 1: CPI Trends - CPI year-on-year growth has shown a recovery trend for three consecutive months, with a November increase of 0.7%, up 0.5 percentage points from the previous value[8] - Food prices have significantly contributed to the CPI improvement, with fresh vegetables and fruits accounting for 54.29% of the food price increase[12] - The two-year compound growth rate of CPI in November was 0.45%, reflecting a marginal improvement[8] Group 2: Food Price Dynamics - Fresh vegetables and fruits saw year-on-year price increases of 14.5% and 0.7%, respectively, due to supply shortages caused by extreme weather[12] - Beef and lamb prices also maintained stable year-on-year growth, with increases of 6.2% and 3.7% respectively, driven by declining livestock numbers[12] Group 3: PPI Trends - PPI year-on-year growth was -2.2% in November, lower than the expected -2.03%, indicating a continued low-level fluctuation[19] - The year-on-year growth rate of production materials was -2.4%, while living materials saw a decline of -1.5%[20] Group 4: Sector Analysis - The upstream mining sector showed relative price stability, with coal mining and black metal mining prices improving marginally[23] - Downstream consumer prices exhibited weak recovery, with food and beverage prices continuing to show weakness, reflecting ongoing demand issues[24]