diff --git a/.ua/backlog.json b/.ua/backlog.json
index c428db3..dec2d45 100644
--- a/.ua/backlog.json
+++ b/.ua/backlog.json
@@ -3225,7 +3225,7 @@
     {
       "id": "g315",
       "domain": "tune",
-      "status": "open",
+      "status": "done",
       "title": "表格补行展开：长内容只能挤在单元格里或跳页",
       "motivation": "订单备注、用户标签、二级操作这类内容塞进单元格会把列撑爆，跳详情页又太重；dataTable 只有 onRowClick 一条路，等于逼调用方在「挤」和「跳走」之间二选一。",
       "acceptance": "① 新增 renderDetail 入参，传了才多一列展开钮（▸ 旋转 90° 表示展开）；② 详情行整行跨列、凹陷底、允许折行，展开态按 rowKey 记，筛选与翻页不丢；③ 展开钮拦冒泡，整行可点时不会顺带触发 onRowClick；④ 空状态与骨架行的 colspan 计入展开列；⑤ manifest 与 demo 同步，npm run check 全绿。",
diff --git a/.ua/iterations.log b/.ua/iterations.log
index 2bc2d57..22d7c06 100644
--- a/.ua/iterations.log
+++ b/.ua/iterations.log
@@ -359,3 +359,4 @@
 {"ts":"2026-10-27T00:43:13+08:00","id":"g312","result":"done","commit":"c966550","summary":"dataTable 新增 emptyAction：真没数据时才渲染操作，有筛选词仍给清除筛选"}
 {"ts":"2026-10-27T00:43:55+08:00","id":"g313","result":"done","commit":"f873baf","summary":"禁用态置灰 + aria-disabled：光标回默认、文字退次级、悬停与按下不再反馈"}
 {"ts":"2026-10-27T00:44:38+08:00","id":"g314","result":"done","commit":"a9ffbae","summary":"清单补 sortableList / masonry 两段共 8 条，REQUIRED 16→18、下限自动推到 54"}
+{"ts":"2026-10-27T00:46:37+08:00","id":"g315","result":"done","commit":"aed5c75","summary":"dataTable 新增 renderDetail：展开列 + 凹陷底详情行，按 rowKey 记展开态，全选框同时归位进 th"}