diff --git a/.ua/backlog.json b/.ua/backlog.json
index 0404419..0820bed 100644
--- a/.ua/backlog.json
+++ b/.ua/backlog.json
@@ -450,7 +450,7 @@
       "title": "浮层定位空间不足时自动翻转",
       "motivation": "popover / tooltip / select / menu 固定按 placement 定位，视口底部会溢出被裁切，缺少统一 flip 判定",
       "acceptance": "新增 src/position.ts：flip(trigger, panel, preferred) 依据 getBoundingClientRect 与视口高度决定是否上下翻转，四个浮层组件接入；导出 + 文档说明 + demo 覆盖说明；npm run check 全绿",
-      "status": "open",
+      "status": "done",
       "notes": "自补：既有组件可用性细节"
     },
     {
diff --git a/.ua/iterations.log b/.ua/iterations.log
index 04e8ff3..9e5c38c 100644
--- a/.ua/iterations.log
+++ b/.ua/iterations.log
@@ -58,3 +58,4 @@
 {"ts":"2026-10-26T10:27:10+08:00","id":"g12","result":"done","commit":"1b75fb4","summary":"verify 交叉校验 backlog done 与 iterations.log 留痕双向一致，注入违规即拦截"}
 {"ts":"2026-10-26T10:29:17+08:00","id":"g14","result":"done","commit":"b3c3bc7","summary":"演示站侧边目录加关键字过滤框：输入即筛、空态提示、Esc 清空，滚动高亮不受影响"}
 {"ts":"2026-10-26T10:31:15+08:00","id":"g13","result":"done","commit":"90d3b64","summary":"新增 ua changelog：按提交类型分组生成 CHANGELOG.md，支持 --check 幂等校验"}
+{"ts":"2026-10-26T10:52:00+08:00","id":"g11","result":"done","commit":"00a7b90","summary":"新增 flip() 翻转判定：popover/tooltip/select/menu 打开时按视口空间自动上下翻转，弹层不再溢出被裁切"}