装修建材板块12月11日跌0.77%，顾地科技领跌，主力资金净流出8968.29万元

Group 1 - The core viewpoint indicates that the home decoration and building materials sector experienced a decline of 0.77% on December 11, with Gu Di Technology leading the drop [1] - The Shanghai Composite Index closed at 3873.32, down 0.7%, while the Shenzhen Component Index closed at 13147.39, down 1.27% [1] Group 2 - In terms of capital flow, the home decoration and building materials sector saw a net outflow of 89.68 million yuan from main funds, while retail funds had a net inflow of 44.49 million yuan [2] - Speculative funds recorded a net inflow of 45.18 million yuan into the sector [2]