diff --git a/apps/admin-web/src/api/adminApiClient.ts b/apps/admin-web/src/api/adminApiClient.ts
index 81893939c..5df358f76 100644
--- a/apps/admin-web/src/api/adminApiClient.ts
+++ b/apps/admin-web/src/api/adminApiClient.ts
@@ -441,6 +441,8 @@ function buildDashboardQuery(query: AdminDashboardQuery) {
   const params = new URLSearchParams();
   appendQueryParam(params, 'granularity', query.granularity);
   appendQueryParam(params, 'anchor', query.anchor);
+  appendQueryParam(params, 'startDate', query.startDate);
+  appendQueryParam(params, 'endDate', query.endDate);
   const queryString = params.toString();
   return queryString ? `?${queryString}` : '';
 }
diff --git a/apps/admin-web/src/api/adminApiTypes.ts b/apps/admin-web/src/api/adminApiTypes.ts
index 7f550de16..7e4617954 100644
--- a/apps/admin-web/src/api/adminApiTypes.ts
+++ b/apps/admin-web/src/api/adminApiTypes.ts
@@ -54,11 +54,13 @@ export interface AdminOverviewResponse {
   database: AdminDatabaseOverviewPayload;
 }
 
-export type AdminDashboardGranularity = 'day' | 'week' | 'month';
+export type AdminDashboardGranularity = 'day' | 'week' | 'month' | 'period';
 
 export interface AdminDashboardQuery {
   granularity?: AdminDashboardGranularity;
   anchor?: string;
+  startDate?: string;
+  endDate?: string;
 }
 
 export interface AdminDashboardResponse {
@@ -82,6 +84,7 @@ export interface AdminDashboardMetricsPayload {
   generatedAssets: number;
   consumedMudPoints: number;
   totalRegisteredUsers: number;
+  newRegisteredUsers: number;
   visitUsers: number;
   totalVisitUsers: number;
   visitCount: number;
diff --git a/apps/admin-web/src/pages/AdminDashboardPage.test.tsx b/apps/admin-web/src/pages/AdminDashboardPage.test.tsx
index 64f5412ac..46c47f20e 100644
--- a/apps/admin-web/src/pages/AdminDashboardPage.test.tsx
+++ b/apps/admin-web/src/pages/AdminDashboardPage.test.tsx
@@ -1,12 +1,12 @@
 /* @vitest-environment jsdom */
 
-import {fireEvent, render, screen, waitFor} from '@testing-library/react';
+import { fireEvent, render, screen, waitFor } from '@testing-library/react';
 import userEvent from '@testing-library/user-event';
-import {beforeEach, expect, test, vi} from 'vitest';
+import { beforeEach, expect, test, vi } from 'vitest';
 
-import {getAdminDashboard} from '../api/adminApiClient';
-import type {AdminDashboardResponse} from '../api/adminApiTypes';
-import {AdminDashboardPage} from './AdminDashboardPage';
+import { getAdminDashboard } from '../api/adminApiClient';
+import type { AdminDashboardResponse } from '../api/adminApiTypes';
+import { AdminDashboardPage } from './AdminDashboardPage';
 
 vi.mock('../api/adminApiClient', () => ({
   formatAdminApiError: vi.fn((error: unknown) =>
@@ -28,6 +28,7 @@ const dashboardResponse: AdminDashboardResponse = {
     generatedAssets: 12,
     consumedMudPoints: 88,
     totalRegisteredUsers: 1200,
+    newRegisteredUsers: 16,
     visitUsers: 34,
     totalVisitUsers: 456,
     visitCount: 98,
@@ -40,7 +41,7 @@ const dashboardResponse: AdminDashboardResponse = {
       title: '生产素材',
       unit: '个',
       total: 12,
-      buckets: [{key: '2026-06-23', label: '2026-06-23', value: 12}],
+      buckets: [{ key: '2026-06-23', label: '2026-06-23', value: 12 }],
     },
   ],
   operations: {
@@ -53,9 +54,9 @@ const dashboardResponse: AdminDashboardResponse = {
       },
     ],
     assetKindBreakdown: [
-      {key: 'editor_generated_image', label: '画板图片', value: 9},
+      { key: 'editor_generated_image', label: '画板图片', value: 9 },
     ],
-    moduleVisitBreakdown: [{key: 'auth', label: '认证', value: 30}],
+    moduleVisitBreakdown: [{ key: 'auth', label: '认证', value: 30 }],
   },
   warnings: [],
   generatedAt: '2026-06-23T12:00:00Z',
@@ -70,8 +71,9 @@ test('Dashboard 默认加载今日指标并支持运营汇总页签', async () =
   const user = userEvent.setup();
   render(<AdminDashboardPage token="admin-token" onUnauthorized={vi.fn()} />);
 
-  expect(await screen.findByText('今日总生产素材数')).toBeTruthy();
+  expect(await screen.findByText('本日总生产素材数')).toBeTruthy();
   expect(screen.getByText('总注册用户')).toBeTruthy();
+  expect(screen.getByText('本日新增用户数')).toBeTruthy();
   expect(screen.getByText('当前使用人数（五分钟统计一次）')).toBeTruthy();
   expect(screen.getByText('生产素材')).toBeTruthy();
 
@@ -82,38 +84,64 @@ test('Dashboard 默认加载今日指标并支持运营汇总页签', async () =
   expect(screen.getByText('访问模块分布')).toBeTruthy();
 });
 
-test('Dashboard 选择周时带上 week granularity 和周一 anchor', async () => {
+test('Dashboard 选择本周时按当前终止日期填充整周范围', async () => {
   const user = userEvent.setup();
   render(<AdminDashboardPage token="admin-token" onUnauthorized={vi.fn()} />);
 
-  await screen.findByText('今日总生产素材数');
-  await user.click(screen.getByRole('button', { name: '周' }));
-  fireEvent.change(screen.getByLabelText('周'), {
-    target: {value: '2026-W27'},
+  await screen.findByText('本日总生产素材数');
+  fireEvent.change(screen.getByLabelText('终止日期'), {
+    target: { value: '2026-07-02' },
   });
+  await user.click(screen.getByRole('button', { name: '本周' }));
 
   await waitFor(() => {
     expect(getAdminDashboard).toHaveBeenLastCalledWith('admin-token', {
       granularity: 'week',
-      anchor: '2026-06-29',
+      anchor: '2026-07-05',
+      startDate: '2026-06-29',
+      endDate: '2026-07-05',
     });
   });
 });
 
-test('Dashboard 选择月份时带上 month granularity 和月初 anchor', async () => {
+test('Dashboard 选择本月时按当前终止日期填充整月范围', async () => {
   const user = userEvent.setup();
   render(<AdminDashboardPage token="admin-token" onUnauthorized={vi.fn()} />);
 
-  await screen.findByText('今日总生产素材数');
-  await user.click(screen.getByRole('button', { name: '月' }));
-  fireEvent.change(screen.getByLabelText('月份'), {
-    target: {value: '2026-07'},
+  await screen.findByText('本日总生产素材数');
+  fireEvent.change(screen.getByLabelText('终止日期'), {
+    target: { value: '2026-07-12' },
   });
+  await user.click(screen.getByRole('button', { name: '本月' }));
 
   await waitFor(() => {
     expect(getAdminDashboard).toHaveBeenLastCalledWith('admin-token', {
       granularity: 'month',
-      anchor: '2026-07-01',
+      anchor: '2026-07-31',
+      startDate: '2026-07-01',
+      endDate: '2026-07-31',
     });
   });
 });
+
+test('Dashboard 手动选择起止日期时使用本时段查询', async () => {
+  render(<AdminDashboardPage token="admin-token" onUnauthorized={vi.fn()} />);
+
+  await screen.findByText('本日总生产素材数');
+  fireEvent.change(screen.getByLabelText('起始日期'), {
+    target: { value: '2026-06-01' },
+  });
+  fireEvent.change(screen.getByLabelText('终止日期'), {
+    target: { value: '2026-06-12' },
+  });
+
+  await waitFor(() => {
+    expect(getAdminDashboard).toHaveBeenLastCalledWith('admin-token', {
+      granularity: 'period',
+      anchor: undefined,
+      startDate: '2026-06-01',
+      endDate: '2026-06-12',
+    });
+  });
+  expect(screen.getByText('本时段新增用户数')).toBeTruthy();
+});
diff --git a/apps/admin-web/src/pages/AdminDashboardPage.tsx b/apps/admin-web/src/pages/AdminDashboardPage.tsx
index ce76add07..e3277a236 100644
--- a/apps/admin-web/src/pages/AdminDashboardPage.tsx
+++ b/apps/admin-web/src/pages/AdminDashboardPage.tsx
@@ -1,14 +1,14 @@
-import {RefreshCw} from 'lucide-react';
-import {useCallback, useEffect, useMemo, useState} from 'react';
+import { RefreshCw } from 'lucide-react';
+import { useCallback, useEffect, useMemo, useState } from 'react';
 
-import {getAdminDashboard} from '../api/adminApiClient';
+import { getAdminDashboard } from '../api/adminApiClient';
 import type {
   AdminDashboardBreakdownRowPayload,
   AdminDashboardChartPayload,
   AdminDashboardGranularity,
   AdminDashboardResponse,
 } from '../api/adminApiTypes';
-import {handlePageError} from './pageUtils';
+import { handlePageError } from './pageUtils';
 
 interface AdminDashboardPageProps {
   token: string;
@@ -21,9 +21,10 @@ const granularityOptions: Array<{
   id: AdminDashboardGranularity;
   label: string;
 }> = [
-  {id: 'day', label: '日'},
-  {id: 'week', label: '周'},
-  {id: 'month', label: '月'},
+  { id: 'day', label: '本日' },
+  { id: 'week', label: '本周' },
+  { id: 'month', label: '本月' },
+  { id: 'period', label: '本时段' },
 ];
 
 export function AdminDashboardPage({
@@ -35,11 +36,13 @@ export function AdminDashboardPage({
   );
   const [granularity, setGranularity] =
     useState<AdminDashboardGranularity>('day');
-  const [anchor, setAnchor] = useState(() => formatDateInput(new Date()));
+  const [dateRange, setDateRange] = useState(() => {
+    const today = formatDateInput(new Date());
+    return { startDate: today, endDate: today };
+  });
   const [activeTab, setActiveTab] = useState<AdminDashboardTab>('metrics');
   const [errorMessage, setErrorMessage] = useState('');
   const [isLoading, setIsLoading] = useState(false);
-  const anchorInput = buildAnchorInput(granularity, anchor);
 
   const loadDashboard = useCallback(async () => {
     setIsLoading(true);
@@ -47,7 +50,9 @@ export function AdminDashboardPage({
     try {
       const response = await getAdminDashboard(token, {
         granularity,
-        anchor,
+        anchor: granularity === 'period' ? undefined : dateRange.endDate,
+        startDate: dateRange.startDate,
+        endDate: dateRange.endDate,
       });
       setDashboard(response);
     } catch (error: unknown) {
@@ -55,7 +60,13 @@ export function AdminDashboardPage({
     } finally {
       setIsLoading(false);
     }
-  }, [anchor, granularity, onUnauthorized, token]);
+  }, [
+    dateRange.endDate,
+    dateRange.startDate,
+    granularity,
+    onUnauthorized,
+    token,
+  ]);
 
   useEffect(() => {
     void loadDashboard();
@@ -92,6 +103,12 @@ export function AdminDashboardPage({
         value: metrics?.totalRegisteredUsers ?? 0,
         unit: '人',
       },
+      {
+        id: 'new-registered-users',
+        label: `${rangePrefix(granularity)}新增用户数`,
+        value: metrics?.newRegisteredUsers ?? 0,
+        unit: '人',
+      },
       {
         id: 'visit-users',
         label: `${rangePrefix(granularity)}访问人数`,
@@ -134,6 +151,28 @@ export function AdminDashboardPage({
           <p>{dashboard?.range.periodLabel ?? '运营指标'}</p>
         </div>
         <div className="admin-dashboard-actions">
+          <div className="admin-dashboard-period-fields">
+            <label className="admin-field admin-dashboard-date-field">
+              <span>起始日期</span>
+              <input
+                type="date"
+                value={dateRange.startDate}
+                onChange={(event) =>
+                  handleDateRangeChange('startDate', event.target.value)
+                }
+              />
+            </label>
+            <label className="admin-field admin-dashboard-date-field">
+              <span>终止日期</span>
+              <input
+                type="date"
+                value={dateRange.endDate}
+                onChange={(event) =>
+                  handleDateRangeChange('endDate', event.target.value)
+                }
+              />
+            </label>
+          </div>
           <div
             className="admin-segmented-control admin-dashboard-granularity"
             role="tablist"
@@ -144,29 +183,12 @@ export function AdminDashboardPage({
                 key={option.id}
                 type="button"
                 data-active={option.id === granularity}
-                onClick={() => setGranularity(option.id)}
+                onClick={() => handleGranularityChange(option.id)}
               >
                 {option.label}
               </button>
             ))}
           </div>
-          <label className="admin-field admin-dashboard-date-field">
-            <span>{anchorInput.label}</span>
-            <input
-              key={granularity}
-              type={anchorInput.type}
-              value={anchorInput.value}
-              onChange={(event) => {
-                const nextAnchor = normalizeAnchorInputValue(
-                  granularity,
-                  event.target.value,
-                );
-                if (nextAnchor) {
-                  setAnchor(nextAnchor);
-                }
-              }}
-            />
-          </label>
           <button
             className="admin-secondary-button"
             disabled={isLoading}
@@ -276,6 +298,28 @@ export function AdminDashboardPage({
       )}
     </section>
   );
+
+  function handleGranularityChange(nextGranularity: AdminDashboardGranularity) {
+    setGranularity(nextGranularity);
+    setDateRange((current) =>
+      nextGranularity === 'period'
+        ? normalizeDateRange(current)
+        : buildPresetDateRange(nextGranularity, current.endDate),
+    );
+  }
+
+  function handleDateRangeChange(
+    field: 'startDate' | 'endDate',
+    value: string,
+  ) {
+    if (!parseDateValueAsUtc(value)) {
+      return;
+    }
+    setGranularity('period');
+    setDateRange((current) =>
+      normalizeDateRange({ ...current, [field]: value }),
+    );
+  }
 }
 
 function MetricCard({
@@ -301,7 +345,7 @@ function MetricCard({
   );
 }
 
-function ChartPanel({chart}: {chart: AdminDashboardChartPayload}) {
+function ChartPanel({ chart }: { chart: AdminDashboardChartPayload }) {
   const maxValue = Math.max(1, ...chart.buckets.map((bucket) => bucket.value));
   return (
     <section className="admin-panel admin-dashboard-chart-card">
@@ -381,41 +425,6 @@ function formatDateInput(date: Date) {
   return `${year}-${month}-${day}`;
 }
 
-function buildAnchorInput(granularity: AdminDashboardGranularity, anchor: string) {
-  if (granularity === 'week') {
-    return {
-      label: '周',
-      type: 'week',
-      value: dateToWeekInputValue(anchor),
-    };
-  }
-  if (granularity === 'month') {
-    return {
-      label: '月份',
-      type: 'month',
-      value: anchor.slice(0, 7),
-    };
-  }
-  return {
-    label: '日期',
-    type: 'date',
-    value: anchor,
-  };
-}
-
-function normalizeAnchorInputValue(
-  granularity: AdminDashboardGranularity,
-  value: string,
-) {
-  if (granularity === 'week') {
-    return weekInputValueToMondayDate(value);
-  }
-  if (granularity === 'month') {
-    return monthInputValueToFirstDate(value);
-  }
-  return parseDateValueAsUtc(value) ? value : '';
-}
-
 function rangePrefix(granularity: AdminDashboardGranularity) {
   if (granularity === 'week') {
     return '本周';
@@ -423,55 +432,65 @@ function rangePrefix(granularity: AdminDashboardGranularity) {
   if (granularity === 'month') {
     return '本月';
   }
-  return '今日';
+  if (granularity === 'period') {
+    return '本时段';
+  }
+  return '本日';
 }
 
-function dateToWeekInputValue(dateValue: string) {
+function buildPresetDateRange(
+  granularity: AdminDashboardGranularity,
+  selectedDate: string,
+) {
+  const fallbackDate = formatDateInput(new Date());
+  const anchor = parseDateValueAsUtc(selectedDate)
+    ? selectedDate
+    : fallbackDate;
+  if (granularity === 'week') {
+    return buildWeekDateRange(anchor);
+  }
+  if (granularity === 'month') {
+    return buildMonthDateRange(anchor);
+  }
+  return { startDate: anchor, endDate: anchor };
+}
+
+function buildWeekDateRange(dateValue: string) {
   const date = parseDateValueAsUtc(dateValue);
   if (!date) {
-    return '';
+    return { startDate: dateValue, endDate: dateValue };
   }
 
-  const day = date.getUTCDay() || 7;
-  date.setUTCDate(date.getUTCDate() + 4 - day);
-  const weekYear = date.getUTCFullYear();
-  const yearStart = new Date(Date.UTC(weekYear, 0, 1));
-  const week = Math.ceil(
-    ((date.getTime() - yearStart.getTime()) / 86_400_000 + 1) / 7,
+  const weekday = date.getUTCDay() || 7;
+  const monday = new Date(date);
+  monday.setUTCDate(date.getUTCDate() - weekday + 1);
+  const sunday = new Date(monday);
+  sunday.setUTCDate(monday.getUTCDate() + 6);
+  return { startDate: formatUtcDate(monday), endDate: formatUtcDate(sunday) };
+}
+
+function buildMonthDateRange(dateValue: string) {
+  const date = parseDateValueAsUtc(dateValue);
+  if (!date) {
+    return { startDate: dateValue, endDate: dateValue };
+  }
+
+  const firstDate = new Date(
+    Date.UTC(date.getUTCFullYear(), date.getUTCMonth(), 1),
   );
-  return `${weekYear}-W${String(week).padStart(2, '0')}`;
+  const lastDate = new Date(
+    Date.UTC(date.getUTCFullYear(), date.getUTCMonth() + 1, 0),
+  );
+  return {
+    startDate: formatUtcDate(firstDate),
+    endDate: formatUtcDate(lastDate),
+  };
 }
 
-function weekInputValueToMondayDate(value: string) {
-  const match = /^(\d{4})-W(\d{2})$/.exec(value);
-  if (!match) {
-    return '';
-  }
-
-  const year = Number(match[1]);
-  const week = Number(match[2]);
-  if (!Number.isInteger(year) || week < 1 || week > 53) {
-    return '';
-  }
-
-  const jan4 = new Date(Date.UTC(year, 0, 4));
-  const jan4Day = jan4.getUTCDay() || 7;
-  const monday = new Date(jan4);
-  monday.setUTCDate(jan4.getUTCDate() - jan4Day + 1 + (week - 1) * 7);
-  const mondayDate = formatUtcDate(monday);
-  return dateToWeekInputValue(mondayDate) === value ? mondayDate : '';
-}
-
-function monthInputValueToFirstDate(value: string) {
-  const match = /^(\d{4})-(\d{2})$/.exec(value);
-  if (!match) {
-    return '';
-  }
-
-  const year = Number(match[1]);
-  const month = Number(match[2]);
-  const firstDate = `${year}-${String(month).padStart(2, '0')}-01`;
-  return parseDateValueAsUtc(firstDate) ? firstDate : '';
+function normalizeDateRange(range: { startDate: string; endDate: string }) {
+  return range.startDate > range.endDate
+    ? { startDate: range.endDate, endDate: range.startDate }
+    : range;
 }
 
 function parseDateValueAsUtc(value: string) {
diff --git a/apps/admin-web/src/styles/admin.css b/apps/admin-web/src/styles/admin.css
index 5cc78df0d..d826c2eff 100644
--- a/apps/admin-web/src/styles/admin.css
+++ b/apps/admin-web/src/styles/admin.css
@@ -284,10 +284,17 @@ button:disabled {
 }
 
 .admin-dashboard-granularity {
-  width: 188px;
+  width: 250px;
   flex: 0 0 auto;
 }
 
+.admin-dashboard-period-fields {
+  display: grid;
+  width: 352px;
+  grid-template-columns: repeat(2, minmax(0, 1fr));
+  gap: 10px;
+}
+
 .admin-dashboard-date-field {
   width: 170px;
 }
@@ -1279,11 +1286,16 @@ button:disabled {
   }
 
   .admin-dashboard-granularity,
+  .admin-dashboard-period-fields,
   .admin-dashboard-date-field,
   .admin-dashboard-actions .admin-secondary-button {
     width: 100%;
   }
 
+  .admin-dashboard-period-fields {
+    grid-template-columns: repeat(2, minmax(0, 1fr));
+  }
+
   .admin-dashboard-metric-grid,
   .admin-dashboard-operation-grid {
     grid-template-columns: repeat(2, minmax(0, 1fr));
@@ -1351,6 +1363,10 @@ button:disabled {
     width: 100%;
   }
 
+  .admin-dashboard-period-fields {
+    grid-template-columns: 1fr;
+  }
+
   .admin-dashboard-metric-grid,
   .admin-dashboard-operation-grid {
     grid-template-columns: 1fr;
diff --git a/docs/project-memory/shared-memory/decision-log.md b/docs/project-memory/shared-memory/decision-log.md
index 725ea49da..8fbf4c8ce 100644
--- a/docs/project-memory/shared-memory/decision-log.md
+++ b/docs/project-memory/shared-memory/decision-log.md
@@ -3710,6 +3710,7 @@
 
 - 背景：后台需要默认进入运营数据面板，而不是服务 / 数据库状态页；看板要同时支持日 / 周 / 月筛选，并展示生产素材、泥点消耗、注册、访问和当前使用人数。
 - 决策：`apps/admin-web` 默认路由改为 `#dashboard`，原 `#overview` 保留为“服务总览”。Dashboard 统一通过 `GET /admin/api/dashboard` 读取 api-server 后端投影，不让前端绕过 BFF 直接访问 SpacetimeDB。后端不新增 SpacetimeDB schema，聚合现有 `editor_project_resource`、`profile_wallet_ledger`、`profile_dashboard_state`、`tracking_daily_stat` 和 `tracking_event`。
-- 指标口径：生产素材数统计 `editor_project_resource.source_type = generated`；消耗泥点数统计 `profile_wallet_ledger.source_type = asset_operation_consume` 的负向流水绝对值；访问次数只统计 `tracking_daily_stat.scope_kind = site`；访问人数和当前使用人数按登录用户去重，匿名访问人数需要未来补 visitor id 后才能统计。
+- 2026-06-24 补充：Dashboard 日期控件改为起始日期 / 终止日期；`granularity=period` 使用 `startDate` / `endDate` 自定义闭区间，`day` / `week` / `month` 保留 `anchor` 兼容并由前端自动填充对应范围，页面周期切换展示为“本日 / 本周 / 本月 / 本时段”。
+- 指标口径：生产素材数统计 `editor_project_resource.source_type = generated`；消耗泥点数统计 `profile_wallet_ledger.source_type = asset_operation_consume` 的负向流水绝对值；总注册用户和新增用户数均来自 `profile_dashboard_state`，其中新增用户数按 `created_at` 落入当前时间窗统计；访问次数只统计 `tracking_daily_stat.scope_kind = site`；访问人数和当前使用人数按登录用户去重，匿名访问人数需要未来补 visitor id 后才能统计。
 - 影响范围：`/admin/api/dashboard`、`shared-contracts` admin DTO、`apps/admin-web` 默认路由和 Dashboard 页面、后台运营文档。
 - 验证方式：`cargo test -p api-server --manifest-path server-rs/Cargo.toml admin`、`npm run admin-web:typecheck`、`npx vitest run apps/admin-web/src/pages/AdminDashboardPage.test.tsx apps/admin-web/src/app/adminRoutes.test.ts --reporter verbose`、`npm run check:encoding`、`git diff --check`。
diff --git a/docs/technical/【后台管理】Dashboard运营看板方案-2026-06-23.md b/docs/technical/【后台管理】Dashboard运营看板方案-2026-06-23.md
index aa3de40e3..d9a618bc5 100644
--- a/docs/technical/【后台管理】Dashboard运营看板方案-2026-06-23.md
+++ b/docs/technical/【后台管理】Dashboard运营看板方案-2026-06-23.md
@@ -8,11 +8,12 @@
 
 ## 查询参数
 
-`GET /admin/api/dashboard?granularity=day|week|month&anchor=YYYY-MM-DD`
+`GET /admin/api/dashboard?granularity=day|week|month|period&anchor=YYYY-MM-DD&startDate=YYYY-MM-DD&endDate=YYYY-MM-DD`
 
 - `granularity` 默认为 `day`。
-- `anchor` 使用北京时间日历日期。`week` 和 `month` 选择包含该日期的自然周 / 自然月。
-- 前端在日 / 周 / 月模式分别展示日期、周、月份选择器；周选择器会把选中的周转换为该周周一作为 `anchor`，月份选择器会转换为当月 1 日作为 `anchor`。
+- `anchor` 使用北京时间日历日期，保留给 `day` / `week` / `month` 兼容旧查询口径。`week` 和 `month` 选择包含该日期的自然周 / 自然月。
+- `period` 使用 `startDate` / `endDate` 作为闭区间自定义时段，最多 366 天。
+- 前端统一展示起始日期和终止日期两个日期选择器；点击“本日 / 本周 / 本月”会按当前终止日期自动填充对应自然日 / 自然周 / 自然月范围，手动修改起止日期或点击“本时段”后按当前日期范围查询。
 - 前端每 5 分钟自动刷新一次，同时保留手动刷新按钮。
 
 ## 指标口径
@@ -20,6 +21,7 @@
 - 生产素材数：`editor_project_resource` 中 `source_type = 'generated'` 的资源，按 `created_at` 映射到北京时间业务日。
 - 消耗泥点数：`profile_wallet_ledger` 中 `source_type = asset_operation_consume` 且 `amount_delta < 0` 的流水绝对值，按 `created_at` 映射到北京时间业务日。
 - 总注册用户：`profile_dashboard_state` 行数。
+- 新增用户数：`profile_dashboard_state` 中 `created_at` 落在当前筛选时间窗内的账号数，按北京时间业务日归属，支持本日 / 本周 / 本月 / 本时段切换。
 - 访问次数：`tracking_daily_stat` 中 `scope_kind = site` 的日聚合次数。它表示站点级成功路由 / 站点级事件，不把用户级钱包、任务、生成等业务操作混入访问次数。
 - 访问人数：当前数据只具备登录用户维度，按 `tracking_daily_stat` 中 `scope_kind = user` 的 `scope_id` 去重；匿名访问人数需要未来补充稳定 visitor id 后才能统计。
 - 当前使用人数：最近 5 分钟内 `tracking_event` 中有 `user_id` 的登录用户去重；不跟随页面选择的历史日 / 周 / 月。
diff --git a/server-rs/crates/api-server/src/admin.rs b/server-rs/crates/api-server/src/admin.rs
index 200db9373..bc0f39f7c 100644
--- a/server-rs/crates/api-server/src/admin.rs
+++ b/server-rs/crates/api-server/src/admin.rs
@@ -62,6 +62,7 @@ const ADMIN_TRACKING_EVENT_MAX_LIMIT: u32 = 1000;
 const ADMIN_DATABASE_TABLE_DEFAULT_LIMIT: u32 = 100;
 const ADMIN_DATABASE_TABLE_MAX_LIMIT: u32 = 500;
 const ADMIN_DASHBOARD_ROW_LIMIT: u32 = 50_000;
+const ADMIN_DASHBOARD_MAX_PERIOD_DAYS: i64 = 366;
 const ADMIN_DASHBOARD_ACTIVE_WINDOW_MICROS: i64 = 5 * 60 * 1_000_000;
 
 #[derive(Clone, Debug)]
@@ -633,6 +634,7 @@ enum AdminDashboardGranularity {
     Day,
     Week,
     Month,
+    Period,
 }
 
 struct AdminDashboardRangeResolved {
@@ -661,6 +663,12 @@ struct AdminDashboardWalletStats {
     warnings: Vec<String>,
 }
 
+#[derive(Default)]
+struct AdminDashboardRegistrationStats {
+    new_registered_users: AdminDashboardSeries,
+    warnings: Vec<String>,
+}
+
 #[derive(Default)]
 struct AdminDashboardTrackingStats {
     visit_count: AdminDashboardSeries,
@@ -698,15 +706,20 @@ async fn build_admin_dashboard(
     let wallet_stats = fetch_admin_dashboard_wallet_stats(state, &range).await;
     warnings.extend(wallet_stats.warnings.iter().cloned());
 
+    let registration_stats = fetch_admin_dashboard_registration_stats(state, &range).await;
+    warnings.extend(registration_stats.warnings.iter().cloned());
+
     let tracking_stats = fetch_admin_dashboard_tracking_stats(state, &range).await;
     warnings.extend(tracking_stats.warnings.iter().cloned());
 
     let generated_assets = asset_stats.generated_assets.total();
     let consumed_mud_points = wallet_stats.consumed_mud_points.total();
+    let new_registered_users = registration_stats.new_registered_users.total();
     let metrics = AdminDashboardMetricsPayload {
         generated_assets,
         consumed_mud_points,
         total_registered_users,
+        new_registered_users,
         visit_users: tracking_stats.visit_users,
         total_visit_users: tracking_stats.total_visit_users,
         visit_count: tracking_stats.visit_count.total(),
@@ -775,11 +788,16 @@ fn resolve_admin_dashboard_range(
         "day" => AdminDashboardGranularity::Day,
         "week" => AdminDashboardGranularity::Week,
         "month" => AdminDashboardGranularity::Month,
+        "period" => AdminDashboardGranularity::Period,
         _ => {
             return Err(AppError::from_status(StatusCode::BAD_REQUEST)
-                .with_message("dashboard granularity 只支持 day/week/month"));
+                .with_message("dashboard granularity 只支持 day/week/month/period"));
         }
     };
+    if matches!(granularity, AdminDashboardGranularity::Period) {
+        return resolve_admin_dashboard_period_range(query);
+    }
+
     let anchor_date_key = match query
         .anchor
         .as_deref()
@@ -805,6 +823,7 @@ fn resolve_admin_dashboard_range(
         AdminDashboardGranularity::Month => {
             (dimension.month_start_date_key, dimension.month_end_date_key)
         }
+        AdminDashboardGranularity::Period => unreachable!("period range is resolved above"),
     };
     Ok(AdminDashboardRangeResolved {
         granularity,
@@ -814,6 +833,52 @@ fn resolve_admin_dashboard_range(
     })
 }
 
+fn resolve_admin_dashboard_period_range(
+    query: AdminDashboardQuery,
+) -> Result<AdminDashboardRangeResolved, AppError> {
+    let start_date_key = parse_admin_dashboard_date_param(
+        query.start_date.as_deref(),
+        "dashboard startDate 必须是合法 YYYY-MM-DD 日期",
+    )?;
+    let end_date_key = parse_admin_dashboard_date_param(
+        query.end_date.as_deref(),
+        "dashboard endDate 必须是合法 YYYY-MM-DD 日期",
+    )?;
+    if start_date_key > end_date_key {
+        return Err(AppError::from_status(StatusCode::BAD_REQUEST)
+            .with_message("dashboard startDate 不能晚于 endDate"));
+    }
+    if end_date_key - start_date_key + 1 > ADMIN_DASHBOARD_MAX_PERIOD_DAYS {
+        return Err(
+            AppError::from_status(StatusCode::BAD_REQUEST).with_message(format!(
+                "dashboard 自定义时段最多支持 {} 天",
+                ADMIN_DASHBOARD_MAX_PERIOD_DAYS
+            )),
+        );
+    }
+    Ok(AdminDashboardRangeResolved {
+        granularity: AdminDashboardGranularity::Period,
+        anchor_date_key: end_date_key,
+        start_date_key,
+        end_date_key,
+    })
+}
+
+fn parse_admin_dashboard_date_param(
+    value: Option<&str>,
+    error_message: &str,
+) -> Result<i64, AppError> {
+    let date = value
+        .map(str::trim)
+        .filter(|value| !value.is_empty())
+        .ok_or_else(|| {
+            AppError::from_status(StatusCode::BAD_REQUEST).with_message(error_message.to_string())
+        })?;
+    module_runtime::parse_analytics_calendar_date_key(date).map_err(|_| {
+        AppError::from_status(StatusCode::BAD_REQUEST).with_message(error_message.to_string())
+    })
+}
+
 fn build_admin_dashboard_range_payload(
     range: &AdminDashboardRangeResolved,
 ) -> AdminDashboardRangePayload {
@@ -829,6 +894,7 @@ fn build_admin_dashboard_range_payload(
             let month_key = dimension.month_key;
             format!("{:04}-{:02}", month_key / 100, month_key % 100)
         }
+        AdminDashboardGranularity::Period => format!("{start} 至 {end}"),
     };
     AdminDashboardRangePayload {
         granularity: range.granularity.as_str().to_string(),
@@ -932,6 +998,50 @@ async fn fetch_admin_dashboard_wallet_stats(
     stats
 }
 
+async fn fetch_admin_dashboard_registration_stats(
+    state: &AppState,
+    range: &AdminDashboardRangeResolved,
+) -> AdminDashboardRegistrationStats {
+    let mut stats = AdminDashboardRegistrationStats::default();
+    let sql = format!(
+        "SELECT created_at FROM profile_dashboard_state LIMIT {}",
+        ADMIN_DASHBOARD_ROW_LIMIT
+    );
+    let rows = match fetch_admin_dashboard_rows(state, &sql).await {
+        Ok(rows) => rows,
+        Err(message) => {
+            stats
+                .warnings
+                .push(format!("新增用户统计读取失败：{message}"));
+            return stats;
+        }
+    };
+    warn_if_dashboard_rows_may_be_truncated(&mut stats.warnings, "新增用户", rows.len());
+    apply_admin_dashboard_registration_rows(&mut stats, range, rows.iter());
+    stats
+}
+
+fn apply_admin_dashboard_registration_rows<'a, I>(
+    stats: &mut AdminDashboardRegistrationStats,
+    range: &AdminDashboardRangeResolved,
+    rows: I,
+) where
+    I: IntoIterator<Item = &'a Value>,
+{
+    for row in rows {
+        let Some(columns) = row.as_array() else {
+            continue;
+        };
+        let Some(created_at_micros) = columns.first().and_then(timestamp_value_to_micros) else {
+            continue;
+        };
+        let day_key = module_runtime::runtime_profile_beijing_day_key(created_at_micros);
+        if range.contains_day_key(day_key) {
+            stats.new_registered_users.add(day_key, 1);
+        }
+    }
+}
+
 async fn fetch_admin_dashboard_tracking_stats(
     state: &AppState,
     range: &AdminDashboardRangeResolved,
@@ -1197,6 +1307,7 @@ fn admin_dashboard_bucket_label(day_key: i64, granularity: AdminDashboardGranula
             .next()
             .map(ToOwned::to_owned)
             .unwrap_or(date),
+        AdminDashboardGranularity::Period => date.split('-').skip(1).collect::<Vec<_>>().join("/"),
     }
 }
 
@@ -1210,6 +1321,7 @@ impl AdminDashboardGranularity {
             Self::Day => "day",
             Self::Week => "week",
             Self::Month => "month",
+            Self::Period => "period",
         }
     }
 }
@@ -2339,7 +2451,8 @@ fn build_admin_session_payload(session: crate::state::AdminSession) -> AdminSess
 #[cfg(test)]
 mod tests {
     use super::{
-        AdminDashboardGranularity, apply_admin_database_table_filters,
+        AdminDashboardGranularity, AdminDashboardRegistrationStats, AdminDashboardSeries,
+        apply_admin_dashboard_registration_rows, apply_admin_database_table_filters,
         build_admin_database_table_row, build_admin_tracking_events_sql, build_body_preview,
         build_debug_base_url, build_spacetime_schema_url, clamp_admin_database_table_limit,
         clamp_admin_tracking_event_limit, is_safe_spacetime_table_name, normalize_debug_path,
@@ -2520,6 +2633,7 @@ mod tests {
         let day = resolve_admin_dashboard_range(AdminDashboardQuery {
             granularity: Some("day".to_string()),
             anchor: Some("2026-06-23".to_string()),
+            ..Default::default()
         })
         .expect("day range should resolve");
         assert_eq!(day.granularity, AdminDashboardGranularity::Day);
@@ -2532,6 +2646,7 @@ mod tests {
         let week = resolve_admin_dashboard_range(AdminDashboardQuery {
             granularity: Some("week".to_string()),
             anchor: Some("2026-06-23".to_string()),
+            ..Default::default()
         })
         .expect("week range should resolve");
         assert_eq!(
@@ -2546,6 +2661,7 @@ mod tests {
         let month = resolve_admin_dashboard_range(AdminDashboardQuery {
             granularity: Some("month".to_string()),
             anchor: Some("2026-06-23".to_string()),
+            ..Default::default()
         })
         .expect("month range should resolve");
         assert_eq!(
@@ -2558,6 +2674,54 @@ mod tests {
         );
     }
 
+    #[test]
+    fn resolve_admin_dashboard_range_supports_custom_period() {
+        let period = resolve_admin_dashboard_range(AdminDashboardQuery {
+            granularity: Some("period".to_string()),
+            start_date: Some("2026-06-10".to_string()),
+            end_date: Some("2026-06-18".to_string()),
+            ..Default::default()
+        })
+        .expect("period range should resolve");
+
+        assert_eq!(period.granularity, AdminDashboardGranularity::Period);
+        assert_eq!(
+            period.start_date_key,
+            module_runtime::parse_analytics_calendar_date_key("2026-06-10").unwrap()
+        );
+        assert_eq!(
+            period.end_date_key,
+            module_runtime::parse_analytics_calendar_date_key("2026-06-18").unwrap()
+        );
+        assert_eq!(period.anchor_date_key, period.end_date_key);
+    }
+
+    #[test]
+    fn apply_admin_dashboard_registration_rows_counts_created_accounts_in_range() {
+        let range = resolve_admin_dashboard_range(AdminDashboardQuery {
+            granularity: Some("period".to_string()),
+            start_date: Some("2026-06-10".to_string()),
+            end_date: Some("2026-06-18".to_string()),
+            ..Default::default()
+        })
+        .expect("period range should resolve");
+        let rows = vec![
+            json!(["2026-06-09T15:59:59Z"]),
+            json!(["2026-06-10T00:30:00Z"]),
+            json!(["2026-06-18T15:59:59Z"]),
+            json!(["2026-06-18T16:00:00Z"]),
+            json!(["bad-timestamp"]),
+        ];
+        let mut stats = AdminDashboardRegistrationStats {
+            new_registered_users: AdminDashboardSeries::default(),
+            warnings: Vec::new(),
+        };
+
+        apply_admin_dashboard_registration_rows(&mut stats, &range, rows.iter());
+
+        assert_eq!(stats.new_registered_users.total(), 2);
+    }
+
     #[test]
     fn timestamp_value_to_micros_accepts_sql_shapes() {
         assert_eq!(
diff --git a/server-rs/crates/shared-contracts/src/admin.rs b/server-rs/crates/shared-contracts/src/admin.rs
index 4b62fc137..346ee1607 100644
--- a/server-rs/crates/shared-contracts/src/admin.rs
+++ b/server-rs/crates/shared-contracts/src/admin.rs
@@ -157,12 +157,17 @@ pub struct AdminOverviewResponse {
     pub database: AdminDatabaseOverviewPayload,
 }
 
-/// 后台 dashboard 查询参数；anchor 使用北京时间日历日期 YYYY-MM-DD。
+/// 后台 dashboard 查询参数；日期均使用北京时间日历日期 YYYY-MM-DD。
 #[derive(Clone, Debug, Serialize, Deserialize, Default, PartialEq, Eq)]
 #[serde(rename_all = "camelCase")]
 pub struct AdminDashboardQuery {
     pub granularity: Option<String>,
+    /// day / week / month 兼容旧查询口径，表示被选中的日期。
     pub anchor: Option<String>,
+    /// period 自定义时段起始日期，闭区间。
+    pub start_date: Option<String>,
+    /// period 自定义时段终止日期，闭区间。
+    pub end_date: Option<String>,
 }
 
 /// 后台 dashboard 返回运营指标、趋势图和读取告警。
@@ -195,6 +200,7 @@ pub struct AdminDashboardMetricsPayload {
     pub generated_assets: u64,
     pub consumed_mud_points: u64,
     pub total_registered_users: u64,
+    pub new_registered_users: u64,
     pub visit_users: u64,
     pub total_visit_users: u64,
     pub visit_count: u64,