diff --git a/src/utils/publishSnapshotDiff.ts b/src/utils/publishSnapshotDiff.ts
index 1c7bc1a..18a10bd 100644
--- a/src/utils/publishSnapshotDiff.ts
+++ b/src/utils/publishSnapshotDiff.ts
@@ -6,98 +6,196 @@ function canonicalKey(key: string): string {
   return key.charAt(0).toLowerCase() + key.slice(1)
 }
 
-const AUDIT_KEYS = new Set([
+/** 对比时可忽略的审计/元数据字段 */
+const NOISE_KEYS = new Set([
   'createtime',
   'updatetime',
   'createby',
   'updateby',
   'createtimeutc',
   'updatetimeutc',
+  'conurrencystamp',
+  'isdeleted',
+  'extraproperties',
+  'deleterid',
+  'deletiontime',
+  'lastmodificationtime',
+  'lastmodifierid',
+  'creatorid',
 ])
 
+const ARRAY_SORT_KEYS = ['id', 'serialNumber', 'priceId', 'factor', 'name', 'version'] as const
+
+const DEFAULT_DATE_PREFIXES = ['0001-01-01', '1970-01-01']
+
 function isDefaultDateString(value: string): boolean {
-  return /^0001-01-01[ T]00:00:00/.test(value.trim())
+  const trimmed = value.trim()
+  return DEFAULT_DATE_PREFIXES.some((prefix) => trimmed.startsWith(prefix))
+}
+
+function isDateTimeString(value: string): boolean {
+  return /^\d{4}-\d{2}-\d{2}[ T]\d{2}:\d{2}:\d{2}/.test(value.trim())
+}
+
+function normalizeDateString(value: string): string {
+  return value.trim().replace('T', ' ').slice(0, 19)
 }
 
 function normalizeScalar(value: unknown): unknown {
-  if (typeof value !== 'string') return value
-  if (isDefaultDateString(value)) return undefined
-  if (/^\d{4}-\d{2}-\d{2}[ T]\d{2}:\d{2}:\d{2}/.test(value)) {
-    return value.replace('T', ' ').slice(0, 19)
+  if (value === null || value === undefined) return undefined
+  if (typeof value === 'string') {
+    if (value.trim() === '') return undefined
+    if (isDefaultDateString(value)) return undefined
+    if (isDateTimeString(value)) return normalizeDateString(value)
+    return value
   }
+  if (typeof value === 'number') {
+    if (!Number.isFinite(value)) return undefined
+    if (Number.isInteger(value)) return value
+    const rounded = Math.round(value * 1_000_000) / 1_000_000
+    return Object.is(rounded, -0) ? 0 : rounded
+  }
+  if (typeof value === 'boolean') return value
   return value
 }
 
+function isPlainObject(value: unknown): value is Record<string, unknown> {
+  return value != null && typeof value === 'object' && !Array.isArray(value)
+}
+
+function detectArraySortKey(items: unknown[]): (typeof ARRAY_SORT_KEYS)[number] | null {
+  const records = items.filter(isPlainObject) as Record<string, unknown>[]
+  if (records.length === 0) return null
+  for (const key of ARRAY_SORT_KEYS) {
+    const canonical = canonicalKey(key)
+    if (
+      records.every((item) => {
+        const raw = item[key] ?? item[canonical]
+        return raw !== undefined && raw !== null && raw !== ''
+      })
+    ) {
+      return key
+    }
+  }
+  return null
+}
+
+function readSortValue(record: Record<string, unknown>, key: string): number | string {
+  const raw = record[key] ?? record[canonicalKey(key)]
+  if (typeof raw === 'number') return raw
+  if (typeof raw === 'string') return raw
+  return 0
+}
+
 function sortArrayItems(items: unknown[]): unknown[] {
-  if (items.length === 0) return items
-  const first = items[0]
-  if (first == null || typeof first !== 'object' || Array.isArray(first)) {
-    return items
-  }
-  const record = first as Record<string, unknown>
-  if ('id' in record) {
-    return [...items].sort(
-      (a, b) => Number((a as Record<string, unknown>)?.id ?? 0) - Number((b as Record<string, unknown>)?.id ?? 0)
-    )
-  }
-  if ('serialNumber' in record) {
-    return [...items].sort(
-      (a, b) =>
-        Number((a as Record<string, unknown>)?.serialNumber ?? 0)
-        - Number((b as Record<string, unknown>)?.serialNumber ?? 0)
-    )
-  }
-  return items
+  if (items.length <= 1) return items
+  const sortKey = detectArraySortKey(items)
+  if (!sortKey) return items
+  return [...items].sort((a, b) => {
+    const left = readSortValue(a as Record<string, unknown>, sortKey)
+    const right = readSortValue(b as Record<string, unknown>, sortKey)
+    if (typeof left === 'number' && typeof right === 'number') return left - right
+    return String(left).localeCompare(String(right))
+  })
+}
+
+function isEmptyContainer(value: unknown): boolean {
+  if (Array.isArray(value)) return value.length === 0
+  if (isPlainObject(value)) return Object.keys(value).length === 0
+  return false
 }
 
 /** 递归规范化快照对象，便于语义对比 */
 export function normalizeSnapshotForDiff(input: unknown): unknown {
+  const normalized = normalizeSnapshotNode(input)
+  if (normalized === undefined || isEmptyContainer(normalized)) return undefined
+  return normalized
+}
+
+function normalizeSnapshotNode(input: unknown): unknown {
   if (input === null || input === undefined) return undefined
+
   if (Array.isArray(input)) {
     const normalized = input
-      .map((item) => normalizeSnapshotForDiff(item))
+      .map((item) => normalizeSnapshotNode(item))
       .filter((item) => item !== undefined)
     return sortArrayItems(normalized)
   }
-  if (typeof input === 'object') {
-    const record = input as Record<string, unknown>
+
+  if (isPlainObject(input)) {
+    const record = input
     const keys = Object.keys(record).sort((a, b) =>
       canonicalKey(a).localeCompare(canonicalKey(b))
     )
     const out: Record<string, unknown> = {}
     for (const key of keys) {
       const ck = canonicalKey(key)
-      if (AUDIT_KEYS.has(ck)) continue
-      const val = normalizeSnapshotForDiff(record[key])
-      if (val === undefined) continue
+      if (NOISE_KEYS.has(ck)) continue
+      const val = normalizeSnapshotNode(record[key])
+      if (val === undefined || isEmptyContainer(val)) continue
       out[ck] = val
     }
-    return out
+    return Object.keys(out).length > 0 ? out : undefined
   }
+
   return normalizeScalar(input)
 }
 
-export function parseSnapshotJson(raw: unknown): unknown {
+/** 解析快照 JSON，兼容双重编码与 publish record 包装 */
+export function parseSnapshotJson(raw: unknown, depth = 0): unknown {
+  if (depth > 4) return raw ?? {}
   if (raw == null || raw === '') return {}
+
   if (typeof raw === 'string') {
+    const trimmed = raw.trim()
+    if (!trimmed) return {}
     try {
-      return JSON.parse(raw)
+      return parseSnapshotJson(JSON.parse(trimmed), depth + 1)
     } catch {
       return {}
     }
   }
+
+  if (isPlainObject(raw)) {
+    const content = raw.content ?? raw.Content
+    const hasWrapper =
+      content != null &&
+      ('serviceChannelId' in raw ||
+        'ServiceChannelId' in raw ||
+        'salesProductId' in raw ||
+        'SalesProductId' in raw ||
+        'operatorType' in raw ||
+        'OperatorType' in raw ||
+        'version' in raw ||
+        'Version' in raw)
+    if (hasWrapper) {
+      return parseSnapshotJson(content, depth + 1)
+    }
+  }
+
   return raw
 }
 
 export function formatSnapshotJson(raw: unknown): string {
   try {
     const parsed = parseSnapshotJson(raw)
-    return JSON.stringify(parsed, null, 2)
+    const normalized = normalizeSnapshotForDiff(parsed)
+    return JSON.stringify(normalized ?? parsed ?? {}, null, 2)
   } catch {
     return typeof raw === 'string' ? raw : '{}'
   }
 }
 
+export function snapshotsSemanticallyEqual(originalRaw: unknown, modifiedRaw: unknown): boolean {
+  try {
+    const original = normalizeSnapshotForDiff(parseSnapshotJson(originalRaw))
+    const modified = normalizeSnapshotForDiff(parseSnapshotJson(modifiedRaw))
+    return JSON.stringify(original) === JSON.stringify(modified)
+  } catch {
+    return false
+  }
+}
+
 export type SnapshotDiffRow =
   | { type: 'add' | 'remove' | 'same'; text: string }
   | { type: 'change'; oldText: string; newText: string }
@@ -133,21 +231,22 @@ function flattenDiffParts(diff: ReturnType<typeof diffJson>) {
 export function computeSnapshotDiff(
   originalRaw: unknown,
   modifiedRaw: unknown
-): { length: number; rows: SnapshotDiffRow[] } {
+): { length: number; rows: SnapshotDiffRow[]; equal: boolean } {
   try {
     const original = normalizeSnapshotForDiff(parseSnapshotJson(originalRaw))
     const modified = normalizeSnapshotForDiff(parseSnapshotJson(modifiedRaw))
     const originalText = JSON.stringify(original)
     const modifiedText = JSON.stringify(modified)
     if (originalText === modifiedText) {
-      return { length: 0, rows: [] }
+      return { length: 0, rows: [], equal: true }
     }
     const diff = diffJson(original, modified)
     const rows = flattenDiffParts(diff)
-    const length = diff.filter((item) => item.added || item.removed).length
-    return { length, rows }
-  } catch {
-    return { length: 0, rows: [] }
+    const length = rows.filter((row) => row.type !== 'same').length
+    return { length, rows, equal: false }
+  } catch (error) {
+    console.warn('[publishSnapshotDiff] compare failed', error)
+    return { length: -1, rows: [], equal: false }
   }
 }
 
diff --git a/src/views/channel/salesProducts/index.vue b/src/views/channel/salesProducts/index.vue
index b9ef3cb..cb688ef 100644
--- a/src/views/channel/salesProducts/index.vue
+++ b/src/views/channel/salesProducts/index.vue
@@ -1025,7 +1025,7 @@
         return;
       }
       const { length } = computeSnapshotDiff(online, preview);
-      pricePublishPending.value = length > 0;
+      pricePublishPending.value = length < 0 ? null : length > 0;
     } catch {
       pricePublishPending.value = null;
     }
@@ -1331,6 +1331,7 @@
   const publishDiffStatus = computed(() => {
     if (!publishHasOnlineSnapshot.value) return 'first';
     if (publishDiffLength.value === 0) return 'synced';
+    if (publishDiffLength.value < 0) return 'changed';
     return 'changed';
   });
 
diff --git a/src/views/channel/serviceChannels/index.vue b/src/views/channel/serviceChannels/index.vue
index 72d49fa..05cddae 100644
--- a/src/views/channel/serviceChannels/index.vue
+++ b/src/views/channel/serviceChannels/index.vue
@@ -3109,6 +3109,7 @@ const pricePublishPending = ref<boolean | null>(null)
 const publishDiffStatus = computed(() => {
   if (!publishHasOnlineSnapshot.value) return 'first'
   if (publishDiffLength.value === 0) return 'synced'
+  if (publishDiffLength.value < 0) return 'changed'
   return 'changed'
 })
 
@@ -3135,7 +3136,7 @@ async function refreshPricePublishSyncStatus(serviceChannelId?: number | string)
       return
     }
     const { length } = computeSnapshotDiff(online, preview)
-    pricePublishPending.value = length > 0
+    pricePublishPending.value = length < 0 ? null : length > 0
   } catch {
     pricePublishPending.value = null
   }