diff --git a/_AI_USAGE_LOG.md b/_AI_USAGE_LOG.md
index 2387b43..c92a463 100644
--- a/_AI_USAGE_LOG.md
+++ b/_AI_USAGE_LOG.md
@@ -152,3 +152,5 @@
 | 2026-09-12 14:36 | 架构设计 | 豆包式布局设计文档+实施计划 | docs/superpowers/specs/2026-09-12-doubao-layout-design.md; docs/superpowers/plans/2026-09-12-doubao-layout.md | deepseek-chat |
 | 2026-09-12 14:36 | Agent 实现 | 前端豆包式布局：顶栏会话名/空态主标题/底部工具栏/建议卡填入/历史项⋯重命名/上传去zip；chat_state 新增 emptyHeadline+quickPrompts | chat.html; chat.css; chat.js; chat_state.js; tests/test_chat_state.js | deepseek-chat |
 | 2026-09-12 14:36 | 测试验证 | 修正陈旧静态路由测试改走 /static；全套 622 passed 覆盖 99.11% | tests/test_frontend_audit_fixes.py; tests/test_progress_e2e.py | deepseek-chat |
+| 2026-09-12 15:48 | 反馈迭代 | Fix A 修复缓存错配白屏：/ 返回 no-store + 静态资源版本号 __ASSET_VER__ + chat.js setText 空值防御 | src/genesis/server/app.py; src/genesis/server/static/chat.html; src/genesis/server/static/chat.js | deepseek-chat |
+| 2026-09-12 15:48 | 反馈迭代 | Fix B 输入区布局：去聊天区/输入框分割线、输入框铺满右侧、发送改SVG图标、header收紧、textarea自增高(Enter发送/Shift+Enter换行) | src/genesis/server/static/chat.css; src/genesis/server/static/chat.html; src/genesis/server/static/chat.js | deepseek-chat |