diff --git a/src/lib/domain/__tests__/validation.test.ts b/src/lib/domain/__tests__/validation.test.ts
index 1234ca0..8f2359c 100644
--- a/src/lib/domain/__tests__/validation.test.ts
+++ b/src/lib/domain/__tests__/validation.test.ts
@@ -182,6 +182,40 @@ describe("domain validation", () => {
     ).toThrow();
   });
 
+  it("normalizes near-valid LLM QA report values", () => {
+    const parsed = qaReportSchema.parse({
+      overall_status: "警告",
+      checks: [
+        {
+          rule_id: "标题质量",
+          status: "警告",
+          evidence: { detail: "标题仍然偏营销化" },
+          reason: { reason: "官网标题需要更克制" },
+          suggested_fix: null,
+          target_agent: "",
+        },
+        {
+          rule_id: "company_name_integrity",
+          status: "通过",
+          evidence: "公司全称一致",
+          reason: "正文保留了事实卡中的公司全称",
+          target_agent: "无",
+        },
+      ],
+    });
+
+    expect(parsed.overall_status).toBe("warn");
+    expect(parsed.checks[0]).toEqual({
+      rule_id: "title_quality",
+      status: "warn",
+      evidence: "标题仍然偏营销化",
+      reason: "官网标题需要更克制",
+      suggested_fix: "",
+      target_agent: null,
+    });
+    expect(parsed.checks[1]?.target_agent).toBeNull();
+  });
+
   it("normalizes object-shaped changed sections from LLM output", () => {
     const parsed = optimizedArticleSchema.parse({
       title: "Optimized article",
diff --git a/src/lib/domain/validation.ts b/src/lib/domain/validation.ts
index d1eba38..5c7c9b8 100644
--- a/src/lib/domain/validation.ts
+++ b/src/lib/domain/validation.ts
@@ -20,24 +20,89 @@ export const publishPlatformSchema = z.enum([
   "recommendation_list",
 ]) satisfies z.ZodType<PublishPlatform>;
 
-export const checkStatusSchema = z.enum([
-  "pass",
-  "warn",
-  "fail",
-]) satisfies z.ZodType<CheckStatus>;
+const checkStatusAliases: Record<string, CheckStatus> = {
+  pass: "pass",
+  passed: "pass",
+  ok: "pass",
+  "通过": "pass",
+  "合格": "pass",
+  warn: "warn",
+  warning: "warn",
+  "警告": "warn",
+  "提醒": "warn",
+  fail: "fail",
+  failed: "fail",
+  failure: "fail",
+  "失败": "fail",
+  "不通过": "fail",
+};
 
-export const qualityRuleIdSchema = z.enum([
-  "industry_alignment",
-  "image_text_match",
-  "voice_consistency",
-  "platform_fit",
-  "company_name_integrity",
-  "title_quality",
-  "body_quality",
-  "hallucination_risk",
-  "claim_consistency",
-  "context_sensitive_terms",
-]) satisfies z.ZodType<QualityRuleId>;
+function normalizeCheckStatus(value: unknown): unknown {
+  const normalized = normalizedStringOrNull(value);
+  if (!normalized) return value;
+  return (
+    checkStatusAliases[normalized.toLowerCase()] ??
+    checkStatusAliases[normalized] ??
+    normalized
+  );
+}
+
+export const checkStatusSchema = z.preprocess(
+  normalizeCheckStatus,
+  z.enum(["pass", "warn", "fail"]),
+) satisfies z.ZodType<CheckStatus>;
+
+const qualityRuleIdAliases: Record<string, QualityRuleId> = {
+  industry_alignment: "industry_alignment",
+  "行业对齐": "industry_alignment",
+  "行业一致性": "industry_alignment",
+  image_text_match: "image_text_match",
+  "图文匹配": "image_text_match",
+  "图片文本匹配": "image_text_match",
+  voice_consistency: "voice_consistency",
+  "语气一致性": "voice_consistency",
+  "口吻一致性": "voice_consistency",
+  platform_fit: "platform_fit",
+  "平台适配": "platform_fit",
+  company_name_integrity: "company_name_integrity",
+  "公司名一致性": "company_name_integrity",
+  "公司名称一致性": "company_name_integrity",
+  title_quality: "title_quality",
+  "标题质量": "title_quality",
+  body_quality: "body_quality",
+  "正文质量": "body_quality",
+  hallucination_risk: "hallucination_risk",
+  "幻觉风险": "hallucination_risk",
+  "虚构风险": "hallucination_risk",
+  claim_consistency: "claim_consistency",
+  "事实一致性": "claim_consistency",
+  "主张一致性": "claim_consistency",
+  context_sensitive_terms: "context_sensitive_terms",
+  "语境敏感词": "context_sensitive_terms",
+  "敏感词": "context_sensitive_terms",
+};
+
+function normalizeQualityRuleId(value: unknown): unknown {
+  const normalized = normalizedStringOrNull(value);
+  if (!normalized) return value;
+  return qualityRuleIdAliases[normalized] ?? normalized;
+}
+
+export const qualityRuleIdSchema = z.preprocess(
+  normalizeQualityRuleId,
+  z.enum([
+    "industry_alignment",
+    "image_text_match",
+    "voice_consistency",
+    "platform_fit",
+    "company_name_integrity",
+    "title_quality",
+    "body_quality",
+    "hallucination_risk",
+    "claim_consistency",
+    "context_sensitive_terms",
+  ]),
+) satisfies z.ZodType<QualityRuleId>;
 
 export const imageInputSchema = z.object({
   type: z.enum(["description", "link"]),
@@ -308,13 +373,44 @@ export const optimizedArticleSchema = z.object({
   requires_user_confirmation: stringListSchema,
 }) satisfies z.ZodType<OptimizedArticle>;
 
+function normalizeTargetAgent(value: unknown): unknown {
+  const normalized = normalizedStringOrNull(value);
+  if (!normalized) return null;
+  const aliases: Record<string, string | null> = {
+    none: null,
+    null: null,
+    "无": null,
+    "无需": null,
+    title: "title",
+    "标题": "title",
+    body: "body",
+    "正文": "body",
+    fact_card: "fact_card",
+    factcard: "fact_card",
+    "事实卡": "fact_card",
+  };
+  const normalizedKey = normalized.toLowerCase();
+  if (Object.prototype.hasOwnProperty.call(aliases, normalizedKey)) {
+    return aliases[normalizedKey];
+  }
+  if (Object.prototype.hasOwnProperty.call(aliases, normalized)) {
+    return aliases[normalized];
+  }
+  return normalized;
+}
+
+const targetAgentSchema = z.preprocess(
+  normalizeTargetAgent,
+  z.string().trim().min(1).nullable().default(null),
+);
+
 export const qaCheckSchema = z.object({
   rule_id: qualityRuleIdSchema,
   status: checkStatusSchema,
-  evidence: z.string().trim().min(1),
-  reason: z.string().trim().min(1),
-  suggested_fix: z.string().trim().default(""),
-  target_agent: z.string().trim().min(1).nullable().default(null),
+  evidence: requiredLlmStringSchema,
+  reason: requiredLlmStringSchema,
+  suggested_fix: optionalLlmStringSchema,
+  target_agent: targetAgentSchema,
 }) satisfies z.ZodType<QaCheck>;
 
 export const qaReportSchema = z.object({