diff --git a/internal/bizdev/service.go b/internal/bizdev/service.go
index 46345d70..b2fa1d59 100644
--- a/internal/bizdev/service.go
+++ b/internal/bizdev/service.go
@@ -6,6 +6,7 @@ import (
 	"fmt"
 	"os"
 	"path/filepath"
+	"strings"
 	"time"
 
 	"chat-agent-system/internal/config"
@@ -68,18 +69,31 @@ func (s *Service) ExecuteTask(ctx context.Context, req TaskRunRequest) (*TaskRun
 		})
 	}
 
-	// 自动补充知识库检索 (如针对 research 与 feasibility_reg)
+	// 自动补充知识库检索 (如针对 research、feasibility_reg、cleanroom_spec、prelim_design 等阶段)
 	hits := req.KnowledgeHits
-	if len(hits) == 0 && (req.TaskKey == "research" || req.TaskKey == "feasibility_reg") {
-		if kbHits, err := s.kb.Search(ctx, req.ProjectName+" "+req.DeviceType, 5); err == nil && len(kbHits) > 0 {
-			for _, kh := range kbHits {
-				hits = append(hits, squad.KnowledgeHit{
-					DocCode:  kh.DocCode,
-					Category: kh.Category,
-					Title:    kh.Title,
-					Content:  kh.Content,
-					Source:   kh.Source,
-				})
+	if len(hits) == 0 && (req.TaskKey == "research" || req.TaskKey == "feasibility_reg" || req.TaskKey == "cleanroom_spec" || req.TaskKey == "prelim_design") {
+		device := req.DeviceType
+		if device == "" && req.Fields != nil {
+			device = req.Fields["device_type"]
+		}
+		market := req.TargetMarket
+		if market == "" && req.Fields != nil {
+			market = req.Fields["target_market"]
+		}
+		searchQuery := strings.TrimSpace(req.ProjectName + " " + device + " " + market)
+		if searchQuery != "" {
+			if kbHits, err := s.kb.Search(ctx, searchQuery, kb.SearchOptions{Limit: 5}); err == nil && len(kbHits) > 0 {
+				for _, kh := range kbHits {
+					hits = append(hits, squad.KnowledgeHit{
+						DocCode:     kh.DocCode,
+						Category:    kh.Category,
+						Title:       kh.Title,
+						HeadingPath: kh.HeadingPath,
+						Content:     kh.Content,
+						CiteKey:     kh.CiteKey,
+						Source:      kh.Source,
+					})
+				}
 			}
 		}
 	}
diff --git a/internal/squad/context.go b/internal/squad/context.go
index d69d27b3..8158341f 100644
--- a/internal/squad/context.go
+++ b/internal/squad/context.go
@@ -74,7 +74,7 @@ func (cm *ContextManager) FormatPromptContext(wsDir string, role string) (string
 		b.WriteString("### ⚖️ 法规与标准快照（参考依据）\n")
 		lines := strings.Split(string(kbData), "\n")
 		for _, l := range lines {
-			if strings.HasPrefix(l, "### [") {
+			if strings.HasPrefix(l, "### ") && strings.Contains(l, "[") {
 				b.WriteString("- " + strings.TrimPrefix(l, "### ") + "\n")
 			}
 		}
diff --git a/internal/squad/models.go b/internal/squad/models.go
index aadea7b3..4558ad9f 100644
--- a/internal/squad/models.go
+++ b/internal/squad/models.go
@@ -110,11 +110,13 @@ type MaterialItem struct {
 
 // KnowledgeHit 法规知识库检索命中条目
 type KnowledgeHit struct {
-	DocCode  string `json:"doc_code"`
-	Category string `json:"category,omitempty"` // standards, guidance, laws, catalog
-	Title    string `json:"title"`
-	Content  string `json:"content"`
-	Source   string `json:"source"`
+	DocCode     string `json:"doc_code"`
+	Category    string `json:"category,omitempty"` // standards, guidance, laws, catalog
+	Title       string `json:"title"`
+	HeadingPath string `json:"heading_path,omitempty"`
+	Content     string `json:"content"`
+	CiteKey     string `json:"cite_key,omitempty"`
+	Source      string `json:"source"`
 }
 
 // PriorDocItem 前序阶段归档文档
diff --git a/internal/squad/workspace.go b/internal/squad/workspace.go
index 6dd0bffa..26e5615e 100644
--- a/internal/squad/workspace.go
+++ b/internal/squad/workspace.go
@@ -356,17 +356,26 @@ func (e *WorkspaceEngine) buildContextSystem(workDir string, req WorkspacePrepar
 	// 5. knowledge/
 	if len(req.KnowledgeHits) > 0 {
 		var kbBuilder strings.Builder
-		kbBuilder.WriteString("# 法规与标准检索条文摘录\n\n")
+		kbBuilder.WriteString("# 权威法规与技术标准引用库 (Regulatory Knowledge Hits)\n\n")
+		kbBuilder.WriteString("以下为针对本项目研发与注册需求命中的权威法规、国家标准(GB)与行业标准(YY)条款。\n")
+		kbBuilder.WriteString("在输出交付物时，请结合上下文使用，并显式标注【引用标记 (CiteKey)】标明出处。\n\n")
 		for _, hit := range req.KnowledgeHits {
-			kbBuilder.WriteString(fmt.Sprintf("### [%s] %s %s\n\n%s\n\n> 来源: %s\n\n---\n\n",
-				strings.ToUpper(hit.Category), hit.DocCode, hit.Title, hit.Content, hit.Source))
+			kbBuilder.WriteString(fmt.Sprintf("### [%s] %s %s\n\n", strings.ToUpper(hit.Category), hit.DocCode, hit.Title))
+			if hit.HeadingPath != "" {
+				kbBuilder.WriteString(fmt.Sprintf("- **章节路径**: %s\n", hit.HeadingPath))
+			}
+			if hit.CiteKey != "" {
+				kbBuilder.WriteString(fmt.Sprintf("- **引用标记 (CiteKey)**: `%s`\n", hit.CiteKey))
+			}
+			kbBuilder.WriteString(fmt.Sprintf("- **来源**: %s\n\n", hit.Source))
+			kbBuilder.WriteString(hit.Content + "\n\n---\n\n")
 		}
 		_ = os.WriteFile(filepath.Join(ctxDir, "knowledge", "hits.md"), []byte(kbBuilder.String()), 0o644)
 		contextItems = append(contextItems, ContextItem{
 			File:           "context/knowledge/hits.md",
 			Description:    "法规知识库中命中的医疗器械分类、国家标准与指导原则",
 			AuthorityLevel: "reference_standard",
-			Guidance:       "合规与技术论据源。引用必须带标准号；涉及审批结论需标注'需向药监局审评中心确认'",
+			Guidance:       "合规与技术论据源。引用必须标注标准号与引用标记 (CiteKey)；涉及审批结论需标注'需向药监局审评中心确认'",
 		})
 	}