diff --git a/assets/js/page3.js b/assets/js/page3.js
index 291514f..ecf5d07 100644
--- a/assets/js/page3.js
+++ b/assets/js/page3.js
@@ -104,7 +104,8 @@
       { text: '麻雀', x: 3, y: 6, cls: 'sparrow', vertical: true },
       /* 火山铺在底部背景，草、消防栓在其上层 */
       ...volcano,
-      /* 草：最底部一排 */
+      /* 草：最底部一排；第 1、8、15、27 列加高一格 */
+      ...[0, 7, 14, 26].map((x) => ({ text: '草', x, y: 42, cls: 'grass' })),
       { text: '草'.repeat(28), x: 0, y: 43, cls: 'grass' },
       /* 消防栓：最后三行分散竖排九根，左侧留 2 格 */
       ...[2, 5, 8, 10, 13, 16, 19, 23, 25].map((x) => ({