diff --git a/admin-frontend-vue/src/pages/asin/asin-filter.ts b/admin-frontend-vue/src/pages/asin/asin-filter.ts
new file mode 100644
index 00000000..ae26f30e
--- /dev/null
+++ b/admin-frontend-vue/src/pages/asin/asin-filter.ts
@@ -0,0 +1,81 @@
+/** ASIN 数据中心共享分页/筛选类型（任务 61）：与 Java 各列表接口(snake)对齐，纯逻辑。 */
+
+export const ASIN_PAGE_DEFAULT_SIZE = 15
+export const ASIN_PAGE_MIN_PAGE = 1
+export const ASIN_PAGE_MAX_SIZE = 200
+
+/** ISO 日期(yyyy-MM-dd)或空。 */
+export function validIsoDateOrUndefined(value: unknown): string | undefined {
+  if (typeof value !== 'string') return undefined
+  const text = value.trim()
+  return /^\d{4}-\d{2}-\d{2}$/.test(text) ? text : undefined
+}
+
+/** ASIN 中心列表页共享筛选/分页状态。 */
+export interface AsinListParams {
+  page: number
+  pageSize: number
+  /** 值/商品模糊关键字。 */
+  keyword?: string
+  /** 上传用户名模糊搜索。 */
+  username?: string
+  startDate?: string
+  endDate?: string
+  groupId?: number | null
+  /** 国家代码（如 DE、UK）。 */
+  country?: string
+}
+
+/** 序列化到 Java 分页接口的查询参数（snake_case）。 */
+export interface AsinPageQuery {
+  page: number
+  page_size: number
+  keyword?: string
+  username?: string
+  start_date?: string
+  end_date?: string
+  group_id?: number
+  country?: string
+}
+
+function finiteInt(value: unknown): number | null {
+  return typeof value === 'number' && Number.isFinite(value) ? Math.floor(value) : null
+}
+
+/** 归一化共享分页/筛选：页码下限 1、页大小 1..上限，空条件视为无筛选。 */
+export function normalizeAsinPageParams(raw: Partial<AsinListParams>): AsinListParams {
+  const page = Math.max(finiteInt(raw.page) ?? ASIN_PAGE_MIN_PAGE, ASIN_PAGE_MIN_PAGE)
+  const rawSize = finiteInt(raw.pageSize)
+  const pageSize =
+    rawSize === null || rawSize < ASIN_PAGE_MIN_PAGE
+      ? ASIN_PAGE_DEFAULT_SIZE
+      : Math.min(rawSize, ASIN_PAGE_MAX_SIZE)
+  const textOrUndefined = (value: unknown) =>
+    typeof value === 'string' && value.trim() ? value.trim() : undefined
+  const keyword = textOrUndefined(raw.keyword)
+  const username = textOrUndefined(raw.username)
+  const country = textOrUndefined(raw.country)
+  const groupId = finiteInt(raw.groupId)
+  return {
+    page,
+    pageSize,
+    keyword,
+    username,
+    startDate: validIsoDateOrUndefined(raw.startDate),
+    endDate: validIsoDateOrUndefined(raw.endDate),
+    groupId: groupId === null || groupId < 1 ? null : groupId,
+    country,
+  }
+}
+
+/** 前端状态 → Java 查询参数；仅下发非空字段。 */
+export function toAsinPageQuery(params: AsinListParams): AsinPageQuery {
+  const query: AsinPageQuery = { page: params.page, page_size: params.pageSize }
+  if (params.keyword) query.keyword = params.keyword
+  if (params.username) query.username = params.username
+  if (params.startDate) query.start_date = params.startDate
+  if (params.endDate) query.end_date = params.endDate
+  if (params.groupId != null) query.group_id = params.groupId
+  if (params.country) query.country = params.country
+  return query
+}
diff --git a/admin-frontend-vue/tests/task-61.test.ts b/admin-frontend-vue/tests/task-61.test.ts
new file mode 100644
index 00000000..b23e5fb3
--- /dev/null
+++ b/admin-frontend-vue/tests/task-61.test.ts
@@ -0,0 +1,87 @@
+import test from 'node:test'
+import assert from 'node:assert/strict'
+import { readSource } from './helpers.ts'
+import {
+  ASIN_PAGE_DEFAULT_SIZE,
+  normalizeAsinPageParams,
+  toAsinPageQuery,
+  validIsoDateOrUndefined,
+} from '../src/pages/asin/asin-filter.ts'
+
+test('test_task_061_asin_shared_filter_normal_primary_path', () => {
+  // 正常主路径：完整筛选条件归一并序列化为 Java snake_case 查询参数。
+  const params = normalizeAsinPageParams({
+    page: 2,
+    pageSize: 20,
+    keyword: 'B0ABC',
+    startDate: '2026-01-01',
+    endDate: '2026-01-31',
+    groupId: 3,
+    country: 'DE',
+  })
+  assert.equal(params.page, 2)
+  const query = toAsinPageQuery(params)
+  assert.equal(query.page, 2)
+  assert.equal(query.page_size, 20)
+  assert.equal(query.keyword, 'B0ABC')
+  assert.equal(query.start_date, '2026-01-01')
+  assert.equal(query.end_date, '2026-01-31')
+  assert.equal(query.group_id, 3)
+  assert.equal(query.country, 'DE')
+})
+
+test('test_task_061_asin_shared_filter_normal_variant_input', () => {
+  // 正常变体：username 维度可选；空条件不下发字段。
+  const query = toAsinPageQuery(normalizeAsinPageParams({ page: 1, pageSize: 15, username: ' 张伟恒 ' }))
+  assert.equal(query.username, '张伟恒')
+  assert.equal('keyword' in query, false)
+})
+
+test('test_task_061_asin_shared_filter_normal_repeated_operation_is_idempotent', () => {
+  // 正常重复：归一不改输入、结果稳定。
+  const input = { page: 3, pageSize: 30, keyword: 'K' }
+  assert.deepEqual(normalizeAsinPageParams(input), normalizeAsinPageParams(input))
+  assert.equal((input as { keyword: string }).keyword, 'K')
+})
+
+test('test_task_061_asin_shared_filter_boundary_empty_input', () => {
+  // 边界空值：空入参回默认分页(第 1 页/15 条)，无其它筛选。
+  const params = normalizeAsinPageParams({})
+  assert.equal(params.page, 1)
+  assert.equal(params.pageSize, ASIN_PAGE_DEFAULT_SIZE)
+  const query = toAsinPageQuery(params)
+  assert.deepEqual(Object.keys(query).sort(), ['page', 'page_size'])
+})
+
+test('test_task_061_asin_shared_filter_boundary_single_item', () => {
+  // 边界单元素：country 单筛选保留。
+  const query = toAsinPageQuery(normalizeAsinPageParams({ page: 1, country: 'UK' }))
+  assert.equal(query.country, 'UK')
+})
+
+test('test_task_061_asin_shared_filter_boundary_limit_or_missing_field', () => {
+  // 边界上限：页码/页大小钳制；非法 ISO 日期按无日期处理；负 groupId 忽略。
+  const params = normalizeAsinPageParams({ page: 0, pageSize: 999, startDate: 'not-a-date', groupId: -1 })
+  assert.equal(params.page, 1)
+  assert.equal(params.pageSize, 200)
+  assert.equal(params.startDate, undefined)
+  assert.equal(params.groupId, null)
+  assert.equal(validIsoDateOrUndefined('2026-02-01'), '2026-02-01')
+})
+
+test('test_task_061_asin_shared_filter_invalid_input_rejected', () => {
+  // 异常输入：非数字/NaN 回默认；空字符串条件不下发。
+  const query = toAsinPageQuery(normalizeAsinPageParams({ page: 'x' as never, pageSize: NaN, keyword: '   ' }))
+  assert.equal(query.page, 1)
+  assert.equal(query.page_size, ASIN_PAGE_DEFAULT_SIZE)
+  assert.equal('keyword' in query, false)
+})
+
+test('test_task_061_asin_shared_filter_dependency_failure_returns_actionable_message', () => {
+  // 依赖失败/可操作：共享筛选为纯逻辑、无框架/http，日期与国家可空。
+  const mod = readSource('src/pages/asin/asin-filter.ts')
+  assert.equal(/axios|http\.|vue/.test(mod), false, '共享筛选保持纯逻辑')
+  assert.match(mod, /start_date/)
+  assert.match(mod, /end_date/)
+  assert.match(mod, /country/)
+})