A股港口航运板块午后持续走强，国航远洋涨超27%，宁波海运、宁波远洋、南京港、连云港均封板涨停，锦江航运、凤凰航运均涨超6.5%，重庆港、厦门港务均涨超5.5%。

Group 1 - The A-share port and shipping sector showed strong performance in the afternoon, with significant gains across various companies [1] - China National Aviation Corporation's ocean shipping arm surged over 27%, indicating robust market interest [1] - Companies such as Ningbo Shipping, Ningbo Ocean, Nanjing Port, and Lianyungang all reached their daily limit up, reflecting a bullish sentiment in the sector [1] Group 2 - Jinjiang Shipping and Phoenix Shipping both increased by over 6.5%, contributing to the overall positive trend in the industry [1] - Chongqing Port and Xiamen Port also experienced gains exceeding 5.5%, further highlighting the strength of the port and shipping sector [1]