diff --git a/.doc/system-design/README.md b/.doc/system-design/README.md
index 6c998041..26355deb 100644
--- a/.doc/system-design/README.md
+++ b/.doc/system-design/README.md
@@ -20,7 +20,7 @@
 
 | 项 | 链接 |
 |-----|------|
-| 主报告（SSOT） | [../remediation/2026-09-22-t20-hardening-design.md](../remediation/2026-09-22-t20-hardening-design.md) |
+| 主报告（SSOT） | [./2026-09-22-t20-hardening-design.md](./2026-09-22-t20-hardening-design.md) |
 | 本目录迁址桩 | [2026-09-22-t20-hardening-design.md](2026-09-22-t20-hardening-design.md) |
 | 任务 | [../ops/short-term/2026-09-22-t20-design-items.md](../ops/short-term/2026-09-22-t20-design-items.md) |
 | 一句话总结 | XFF/锁拆分/statement_timeout/turn 补偿/shutdown/SSE POST/前端 generation/密码与 Cookie/容器与备份等设计决策；F5/I8 见 lowrisk 批 |
@@ -289,7 +289,7 @@
 
 | 文档 | 说明 |
 |------|------|
-| [../remediation/2026-09-22-t20-hardening-design.md](../remediation/2026-09-22-t20-hardening-design.md) | T20 W4 设计决策 SSOT（本目录仅留迁址桩）；配套 [任务](../ops/short-term/2026-09-22-t20-design-items.md) |
+| [./2026-09-22-t20-hardening-design.md](./2026-09-22-t20-hardening-design.md) | T20 W4 设计决策 SSOT（本目录仅留迁址桩）；配套 [任务](../ops/short-term/2026-09-22-t20-design-items.md) |
 
 ## 🔗 相关资源