diff --git a/modules/story-summary/generate/prompt.js b/modules/story-summary/generate/prompt.js
index c1ed29c..f48cc2e 100644
--- a/modules/story-summary/generate/prompt.js
+++ b/modules/story-summary/generate/prompt.js
@@ -55,7 +55,6 @@ const TOP_N_STAR = 5;
 // L0 显示文本：分号拼接 vs 多行模式的阈值
 const L0_JOINED_MAX_LENGTH = 120;
 // 背景证据：无实体匹配时保留的最低相似度（与 recall.js CONFIG.EVENT_ENTITY_BYPASS_SIM 保持一致）
-const EVIDENCE_ENTITY_BYPASS_SIM = 0.70;
 
 // ─────────────────────────────────────────────────────────────────────────────
 // 工具函数
@@ -161,14 +160,18 @@ function collectL0Entities(l0) {
  * @returns {boolean}
  */
 function shouldKeepEvidenceL0(l0, focusSet) {
-    if (!focusSet?.size) return true;
-    if ((l0?.similarity || 0) >= EVIDENCE_ENTITY_BYPASS_SIM) return true;
+    if (!focusSet?.size) return false;
 
     const entities = collectL0Entities(l0);
     for (const f of focusSet) {
         if (entities.has(f)) return true;
     }
 
+    // 兼容旧数据：semantic 文本包含焦点实体
+    const textNorm = normalize(l0?.atom?.semantic || l0?.text || '');
+    for (const f of focusSet) {
+        if (f && textNorm.includes(f)) return true;
+    }
     return false;
 }
 
@@ -208,6 +211,7 @@ function buildSystemPreamble() {
         "以上是还留在眼前的对话",
         "以下是脑海里的记忆：",
         "• [定了的事] 这些是不会变的",
+        "• [其他人的事] 别人的经历，当前角色可能不知晓",
         "• 其余部分是过往经历的回忆碎片",
         "",
         "请内化这些记忆：",
@@ -1051,7 +1055,7 @@ async function buildVectorPrompt(store, recallResult, causalById, focusEntities,
         sections.push(`[印象深的事] 记得很清楚\n\n${assembled.directEvents.lines.join("\n\n")}`);
     }
     if (assembled.relatedEvents.lines.length) {
-        sections.push(`[好像有关的事] 听说过或有点模糊\n\n${assembled.relatedEvents.lines.join("\n\n")}`);
+        sections.push(`[其他人的事] 别人经历的类似事\n\n${assembled.relatedEvents.lines.join("\n\n")}`);
     }
     if (assembled.distantEvidence.lines.length) {
         sections.push(`[零散记忆] 没归入事件的片段\n${assembled.distantEvidence.lines.join("\n")}`);
diff --git a/modules/story-summary/vector/retrieval/diffusion.js b/modules/story-summary/vector/retrieval/diffusion.js
index 9aec33a..848d14a 100644
--- a/modules/story-summary/vector/retrieval/diffusion.js
+++ b/modules/story-summary/vector/retrieval/diffusion.js
@@ -57,7 +57,7 @@ const CONFIG = {
     // Post-verification (Cosine Gate)
     COSINE_GATE: 0.45,      // min cosine(queryVector, stateVector)
     SCORE_FLOOR: 0.10,      // min finalScore = PPR_normalized × cosine
-    DIFFUSION_CAP: 60,      // max diffused nodes (excluding seeds)
+    DIFFUSION_CAP: 100,      // max diffused nodes (excluding seeds)
 };
 
 // ═══════════════════════════════════════════════════════════════════════════