diff --git a/web/hwlab-cloud-web/app.mjs b/web/hwlab-cloud-web/app.mjs
index 68c852ad..130c0068 100644
--- a/web/hwlab-cloud-web/app.mjs
+++ b/web/hwlab-cloud-web/app.mjs
@@ -847,6 +847,7 @@ function normalizePort(port) {
 }
 
 function trustedM3LiveEvidenceFrom(summary) {
+  if (!isDurableRuntimeReady(summary)) return null;
   const candidates = [
     summary?.m3TrustedLoop,
     summary?.m3HardwareLoop,
@@ -858,6 +859,28 @@ function trustedM3LiveEvidenceFrom(summary) {
   return candidates.find(hasTrustedM3LiveEvidence) ?? null;
 }
 
+function liveRecordTone(record, live) {
+  const runtimeSummary = runtimeSummaryFrom(live);
+  return isDurableRuntimeReady(runtimeSummary) && hasTrustedM3LiveEvidence(record) ? "dev-live" : "blocked";
+}
+
+function liveRecordDurabilityBlocker(live) {
+  const runtimeSummary = runtimeSummaryFrom(live);
+  if (isDurableRuntimeReady(runtimeSummary)) return null;
+  if (runtimeSummary?.durable !== true) {
+    return "runtime.durable=false；只读 audit/evidence 不能标为 durable ready 或 DEV-LIVE。";
+  }
+  return `runtime durable adapter 未 ready（status=${runtimeSummary?.status ?? "unknown"}）；可信记录保持 BLOCKED。`;
+}
+
+function isDurableRuntimeReady(summary) {
+  if (!summary || typeof summary !== "object") return false;
+  if (summary.durable !== true) return false;
+  if (summary.ready === false) return false;
+  if (summary.liveRuntimeEvidence !== true) return false;
+  return !["blocked", "degraded", "failed"].includes(String(summary.status ?? "").toLowerCase());
+}
+
 function hasTrustedM3LiveEvidence(candidate) {
   if (!candidate || typeof candidate !== "object") return false;
   if (candidate.dryRun === true || candidate.fixture === true || candidate.sourceKind === "SOURCE" || candidate.sourceKind === "DRY-RUN") return false;
@@ -1053,7 +1076,7 @@ function auditRecordCards(live) {
           tone: "source"
         }));
       } else {
-        cards.push(...liveEvents.map((event) => auditCard(event, hasTrustedM3LiveEvidence(event) ? "dev-live" : "blocked")));
+        cards.push(...liveEvents.map((event) => auditCard(event, liveRecordTone(event, live), liveRecordDurabilityBlocker(live))));
       }
     } else {
       cards.push(liveFailureCard("audit.event.query", live.audit.error));
@@ -1082,7 +1105,7 @@ function evidenceRecordCards(live) {
           tone: "source"
         }));
       } else {
-        cards.push(...liveRecords.map((record) => evidenceCard(record, hasTrustedM3LiveEvidence(record) ? "dev-live" : "blocked")));
+        cards.push(...liveRecords.map((record) => evidenceCard(record, liveRecordTone(record, live), liveRecordDurabilityBlocker(live))));
       }
     } else {
       cards.push(liveFailureCard("evidence.record.query", live.evidence.error));
@@ -1099,11 +1122,12 @@ function evidenceRecordCards(live) {
   return cards;
 }
 
-function auditCard(event, tone) {
+function auditCard(event, tone, durabilityBlocker = null) {
   return infoCard({
     title: event.auditId,
     detail: [
       sourceKindLabel(tone),
+      durabilityBlocker,
       tone === "blocked" ? "只读 audit 缺少 M3 patch-panel live report / operation / trace / evidence 绑定" : null,
       recordField("action", event.action),
       recordField("target", event.targetId),
@@ -1115,11 +1139,12 @@ function auditCard(event, tone) {
   });
 }
 
-function evidenceCard(record, tone) {
+function evidenceCard(record, tone, durabilityBlocker = null) {
   return infoCard({
     title: record.evidenceId,
     detail: [
       sourceKindLabel(tone),
+      durabilityBlocker,
       tone === "blocked" ? "只读 evidence 缺少 M3 patch-panel live report / operation / trace / audit 绑定" : null,
       recordKindLabel(record.kind ?? "record"),
       recordField("operation", record.operationId),
diff --git a/web/hwlab-cloud-web/scripts/check.mjs b/web/hwlab-cloud-web/scripts/check.mjs
index 445fdc6a..141b5169 100644
--- a/web/hwlab-cloud-web/scripts/check.mjs
+++ b/web/hwlab-cloud-web/scripts/check.mjs
@@ -52,6 +52,7 @@ const requiredTrustedRecordTerms = Object.freeze([
   "conversationId、traceId 和 messageId",
   "provider/model/trace/conversation",
   "失败原因=",
+  "runtime.durable=false；只读 audit/evidence 不能标为 durable ready 或 DEV-LIVE。",
   "只读 audit 缺少 M3 patch-panel live report / operation / trace / evidence 绑定",
   "只读 evidence 缺少 M3 patch-panel live report / operation / trace / audit 绑定",
   "当前显示 SOURCE 回退，不能冒充 DEV-LIVE"
@@ -128,6 +129,13 @@ assert.match(app, /function auditRecordCards/);
 assert.match(app, /function evidenceRecordCards/);
 assert.match(app, /function auditCard/);
 assert.match(app, /function evidenceCard/);
+assert.match(app, /function liveRecordTone/);
+assert.match(app, /function liveRecordDurabilityBlocker/);
+assert.match(app, /function isDurableRuntimeReady/);
+assert.match(app, /runtimeSummary\?\.durable !== true/);
+assert.match(app, /summary\.liveRuntimeEvidence !== true/);
+assert.match(app, /auditCard\(event, liveRecordTone\(event, live\), liveRecordDurabilityBlocker\(live\)\)/);
+assert.match(app, /evidenceCard\(record, liveRecordTone\(record, live\), liveRecordDurabilityBlocker\(live\)\)/);
 assert.match(app, /function recordGroup/);
 assert.match(app, /function recordField/);
 assert.match(app, /function sourceKindLabel/);