diff --git a/apps/web-antd/src/views/store/pickup/components/PickupPreviewSection.vue b/apps/web-antd/src/views/store/pickup/components/PickupPreviewSection.vue
index d1ca2f1..0281a86 100644
--- a/apps/web-antd/src/views/store/pickup/components/PickupPreviewSection.vue
+++ b/apps/web-antd/src/views/store/pickup/components/PickupPreviewSection.vue
@@ -22,7 +22,7 @@ const emit = defineEmits<{
   (event: 'selectDate', date: string): void;
 }>();
 
-const previewSubtitle = '根据规则自动生成，以下为预览效果';
+const previewSubtitle = '来自后端规则计算（未扣减实际预约）';
 
 function getPreviewStatusText(slot: PickupPreviewSlotDto) {
   if (slot.status === 'expired') return '已过期';
diff --git a/apps/web-antd/src/views/store/pickup/composables/pickup-page/constants.ts b/apps/web-antd/src/views/store/pickup/composables/pickup-page/constants.ts
index 94960b6..011d8fa 100644
--- a/apps/web-antd/src/views/store/pickup/composables/pickup-page/constants.ts
+++ b/apps/web-antd/src/views/store/pickup/composables/pickup-page/constants.ts
@@ -7,7 +7,6 @@ import type {
   PickupBasicSettingsDto,
   PickupFineRuleDto,
   PickupMode,
-  PickupSlotDto,
   PickupWeekDay,
 } from '#/api/store-pickup';
 import type { PickupWeekDayOption } from '#/views/store/pickup/types';
@@ -49,64 +48,6 @@ export const DEFAULT_PICKUP_BASIC_SETTINGS: PickupBasicSettingsDto = {
   maxItemsPerOrder: 20,
 };
 
-export const DEFAULT_BIG_SLOTS: PickupSlotDto[] = [
-  {
-    id: 'slot-morning',
-    name: '上午时段',
-    startTime: '09:00',
-    endTime: '11:30',
-    cutoffMinutes: 30,
-    capacity: 20,
-    reservedCount: 5,
-    dayOfWeeks: [...WEEKDAY_ONLY],
-    enabled: true,
-  },
-  {
-    id: 'slot-noon',
-    name: '午间时段',
-    startTime: '11:30',
-    endTime: '14:00',
-    cutoffMinutes: 20,
-    capacity: 30,
-    reservedCount: 12,
-    dayOfWeeks: [...ALL_WEEK_DAYS],
-    enabled: true,
-  },
-  {
-    id: 'slot-afternoon',
-    name: '下午时段',
-    startTime: '14:00',
-    endTime: '17:00',
-    cutoffMinutes: 30,
-    capacity: 15,
-    reservedCount: 3,
-    dayOfWeeks: [...WEEKDAY_ONLY],
-    enabled: true,
-  },
-  {
-    id: 'slot-evening',
-    name: '晚间时段',
-    startTime: '17:00',
-    endTime: '20:30',
-    cutoffMinutes: 30,
-    capacity: 25,
-    reservedCount: 8,
-    dayOfWeeks: [...ALL_WEEK_DAYS],
-    enabled: true,
-  },
-  {
-    id: 'slot-weekend',
-    name: '周末特惠',
-    startTime: '10:00',
-    endTime: '15:00',
-    cutoffMinutes: 45,
-    capacity: 40,
-    reservedCount: 18,
-    dayOfWeeks: [...WEEKEND_ONLY],
-    enabled: false,
-  },
-];
-
 export const DEFAULT_FINE_RULE: PickupFineRuleDto = {
   intervalMinutes: 30,
   slotCapacity: 5,
diff --git a/apps/web-antd/src/views/store/pickup/composables/pickup-page/data-actions.ts b/apps/web-antd/src/views/store/pickup/composables/pickup-page/data-actions.ts
index 45fb0c2..73590be 100644
--- a/apps/web-antd/src/views/store/pickup/composables/pickup-page/data-actions.ts
+++ b/apps/web-antd/src/views/store/pickup/composables/pickup-page/data-actions.ts
@@ -26,7 +26,6 @@ import {
 } from '#/api/store-pickup';
 
 import {
-  DEFAULT_BIG_SLOTS,
   DEFAULT_FINE_RULE,
   DEFAULT_PICKUP_BASIC_SETTINGS,
   DEFAULT_PICKUP_MODE,
@@ -37,7 +36,6 @@ import {
   cloneFineRule,
   clonePreviewDays,
   createSettingsSnapshot,
-  generatePreviewDays,
   sortSlots,
 } from './helpers';
 
@@ -90,9 +88,9 @@ export function createDataActions(options: CreateDataActionsOptions) {
   function applyDefaultSettings() {
     options.mode.value = DEFAULT_PICKUP_MODE;
     syncBasicSettings(cloneBasicSettings(DEFAULT_PICKUP_BASIC_SETTINGS));
-    options.bigSlots.value = sortSlots(cloneBigSlots(DEFAULT_BIG_SLOTS));
+    options.bigSlots.value = [];
     syncFineRule(cloneFineRule(DEFAULT_FINE_RULE));
-    options.previewDays.value = generatePreviewDays(options.fineRule);
+    options.previewDays.value = [];
   }
 
   /** 应用快照到当前页面状态。 */
@@ -118,9 +116,7 @@ export function createDataActions(options: CreateDataActionsOptions) {
         ...result.basicSettings,
       });
       options.bigSlots.value = sortSlots(
-        result.bigSlots?.length
-          ? result.bigSlots
-          : cloneBigSlots(DEFAULT_BIG_SLOTS),
+        result.bigSlots?.length ? result.bigSlots : [],
       );
       syncFineRule({
         ...DEFAULT_FINE_RULE,
@@ -129,7 +125,7 @@ export function createDataActions(options: CreateDataActionsOptions) {
       options.previewDays.value =
         result.previewDays?.length > 0
           ? clonePreviewDays(result.previewDays)
-          : generatePreviewDays(options.fineRule);
+          : [];
 
       options.snapshot.value = buildCurrentSnapshot();
     } catch (error) {
@@ -189,12 +185,13 @@ export function createDataActions(options: CreateDataActionsOptions) {
     if (!options.selectedStoreId.value) return;
     options.isSavingBasic.value = true;
     try {
+      const currentStoreId = options.selectedStoreId.value;
       await savePickupBasicSettingsApi({
-        storeId: options.selectedStoreId.value,
+        storeId: currentStoreId,
         mode: options.mode.value,
         basicSettings: cloneBasicSettings(options.basicSettings),
       });
-      options.snapshot.value = buildCurrentSnapshot();
+      await loadStoreSettings(currentStoreId);
       message.success('基本设置已保存');
     } catch (error) {
       console.error(error);
@@ -208,12 +205,13 @@ export function createDataActions(options: CreateDataActionsOptions) {
     if (!options.selectedStoreId.value) return;
     options.isSavingSlots.value = true;
     try {
+      const currentStoreId = options.selectedStoreId.value;
       await savePickupSlotsApi({
-        storeId: options.selectedStoreId.value,
+        storeId: currentStoreId,
         mode: options.mode.value,
         slots: cloneBigSlots(options.bigSlots.value),
       });
-      options.snapshot.value = buildCurrentSnapshot();
+      await loadStoreSettings(currentStoreId);
       message.success('大时段配置已保存');
     } catch (error) {
       console.error(error);
@@ -227,13 +225,13 @@ export function createDataActions(options: CreateDataActionsOptions) {
     if (!options.selectedStoreId.value) return;
     options.isSavingFineRule.value = true;
     try {
+      const currentStoreId = options.selectedStoreId.value;
       await savePickupFineRuleApi({
-        storeId: options.selectedStoreId.value,
+        storeId: currentStoreId,
         mode: options.mode.value,
         fineRule: cloneFineRule(options.fineRule),
       });
-      options.previewDays.value = generatePreviewDays(options.fineRule);
-      options.snapshot.value = buildCurrentSnapshot();
+      await loadStoreSettings(currentStoreId);
       message.success('精细规则已保存');
     } catch (error) {
       console.error(error);
diff --git a/apps/web-antd/src/views/store/pickup/composables/pickup-page/fine-rule-actions.ts b/apps/web-antd/src/views/store/pickup/composables/pickup-page/fine-rule-actions.ts
index 577e55f..a5f050c 100644
--- a/apps/web-antd/src/views/store/pickup/composables/pickup-page/fine-rule-actions.ts
+++ b/apps/web-antd/src/views/store/pickup/composables/pickup-page/fine-rule-actions.ts
@@ -5,20 +5,15 @@ import type { Ref } from 'vue';
  * 1. 管理精细规则字段与适用星期选择。
  * 2. 处理规则校验与保存提交流程。
  */
-import type {
-  PickupFineRuleDto,
-  PickupPreviewDayDto,
-  PickupWeekDay,
-} from '#/api/store-pickup';
+import type { PickupFineRuleDto, PickupWeekDay } from '#/api/store-pickup';
 
 import { message } from 'ant-design-vue';
 
 import { ALL_WEEK_DAYS, WEEKDAY_ONLY, WEEKEND_ONLY } from './constants';
-import { generatePreviewDays, parseTimeToMinutes } from './helpers';
+import { parseTimeToMinutes } from './helpers';
 
 interface CreateFineRuleActionsOptions {
   fineRule: PickupFineRuleDto;
-  previewDays: Ref<PickupPreviewDayDto[]>;
   saveFineRule: () => Promise<void>;
   selectedPreviewDate: Ref<string>;
 }
@@ -29,22 +24,18 @@ export function createFineRuleActions(options: CreateFineRuleActionsOptions) {
       5,
       Math.floor(Number(value || 5)),
     );
-    refreshPreviewDays();
   }
 
   function setFineSlotCapacity(value: number) {
     options.fineRule.slotCapacity = Math.max(1, Math.floor(Number(value || 1)));
-    refreshPreviewDays();
   }
 
   function setFineDayStartTime(value: string) {
     options.fineRule.dayStartTime = value;
-    refreshPreviewDays();
   }
 
   function setFineDayEndTime(value: string) {
     options.fineRule.dayEndTime = value;
-    refreshPreviewDays();
   }
 
   function setFineMinAdvanceHours(value: number) {
@@ -52,7 +43,6 @@ export function createFineRuleActions(options: CreateFineRuleActionsOptions) {
       0,
       Math.floor(Number(value || 0)),
     );
-    refreshPreviewDays();
   }
 
   function isFineDaySelected(day: PickupWeekDay) {
@@ -63,7 +53,6 @@ export function createFineRuleActions(options: CreateFineRuleActionsOptions) {
     options.fineRule.dayOfWeeks = options.fineRule.dayOfWeeks.includes(day)
       ? options.fineRule.dayOfWeeks.filter((item) => item !== day)
       : [...options.fineRule.dayOfWeeks, day].toSorted((a, b) => a - b);
-    refreshPreviewDays();
   }
 
   function quickSelectFineDays(mode: 'all' | 'weekday' | 'weekend') {
@@ -74,29 +63,12 @@ export function createFineRuleActions(options: CreateFineRuleActionsOptions) {
     } else {
       options.fineRule.dayOfWeeks = [...WEEKEND_ONLY];
     }
-    refreshPreviewDays();
   }
 
   function setSelectedPreviewDate(date: string) {
     options.selectedPreviewDate.value = date;
   }
 
-  /** 重新计算预览，保障规则修改后页面即时反馈。 */
-  function refreshPreviewDays() {
-    options.previewDays.value = generatePreviewDays(options.fineRule);
-    if (options.previewDays.value.length === 0) {
-      options.selectedPreviewDate.value = '';
-      return;
-    }
-    const hasCurrent = options.previewDays.value.some(
-      (day) => day.date === options.selectedPreviewDate.value,
-    );
-    if (!hasCurrent) {
-      const firstDay = options.previewDays.value[0];
-      options.selectedPreviewDate.value = firstDay?.date ?? '';
-    }
-  }
-
   /** 校验精细规则并提交保存。 */
   async function handleSaveFineRule() {
     // 1. 核心字段校验。
@@ -128,7 +100,6 @@ export function createFineRuleActions(options: CreateFineRuleActionsOptions) {
     handleSaveFineRule,
     isFineDaySelected,
     quickSelectFineDays,
-    refreshPreviewDays,
     setFineDayEndTime,
     setFineDayStartTime,
     setFineIntervalMinutes,
diff --git a/apps/web-antd/src/views/store/pickup/composables/pickup-page/helpers.ts b/apps/web-antd/src/views/store/pickup/composables/pickup-page/helpers.ts
index 4c30133..6e77516 100644
--- a/apps/web-antd/src/views/store/pickup/composables/pickup-page/helpers.ts
+++ b/apps/web-antd/src/views/store/pickup/composables/pickup-page/helpers.ts
@@ -1,14 +1,12 @@
 /**
  * 文件职责：自提设置页面纯函数工具。
  * 1. 负责克隆、格式化、校验、排序等纯逻辑。
- * 2. 负责根据精细规则生成预览数据。
+ * 2. 不直接请求接口，不生成 mock 预览数据。
  */
 import type {
   PickupBasicSettingsDto,
   PickupFineRuleDto,
   PickupPreviewDayDto,
-  PickupPreviewSlotDto,
-  PickupPreviewStatus,
   PickupSlotDto,
   PickupWeekDay,
 } from '#/api/store-pickup';
@@ -150,142 +148,7 @@ export function validateSlotForm(payload: {
   return '';
 }
 
-/** 生成 3 天预览数据。 */
-export function generatePreviewDays(
-  fineRule: PickupFineRuleDto,
-  baseDate = new Date(),
-) {
-  const startMinutes = parseTimeToMinutes(fineRule.dayStartTime);
-  const endMinutes = parseTimeToMinutes(fineRule.dayEndTime);
-  if (!Number.isFinite(startMinutes) || !Number.isFinite(endMinutes)) return [];
-  if (endMinutes <= startMinutes || fineRule.intervalMinutes <= 0) return [];
-
-  return Array.from({ length: 3 }).map((_, index) => {
-    const date = addDays(baseDate, index);
-    const dateKey = toDateOnly(date);
-    const dayOfWeek = toPickupWeekDay(date);
-    const isEnabledDay = fineRule.dayOfWeeks.includes(dayOfWeek);
-
-    const slots = isEnabledDay
-      ? generateDaySlots({
-          date,
-          dateKey,
-          fineRule,
-        })
-      : [];
-
-    return {
-      date: dateKey,
-      label: `${date.getMonth() + 1}/${date.getDate()}`,
-      subLabel: resolvePreviewSubLabel(index, dayOfWeek),
-      slots,
-    };
-  });
-}
-
-/** 是否为有效自提日索引。 */
-function toPickupWeekDay(date: Date): PickupWeekDay {
-  const jsDay = date.getDay(); // 0=周日
-  const mapping: PickupWeekDay[] = [6, 0, 1, 2, 3, 4, 5];
-  return mapping[jsDay] ?? 0;
-}
-
-/** 生成某日预览时段。 */
-function generateDaySlots(payload: {
-  date: Date;
-  dateKey: string;
-  fineRule: PickupFineRuleDto;
-}): PickupPreviewSlotDto[] {
-  const startMinutes = parseTimeToMinutes(payload.fineRule.dayStartTime);
-  const endMinutes = parseTimeToMinutes(payload.fineRule.dayEndTime);
-  const interval = payload.fineRule.intervalMinutes;
-  const total = Math.floor((endMinutes - startMinutes) / interval);
-
-  return Array.from({ length: total + 1 }).map((_, index) => {
-    const minutes = startMinutes + index * interval;
-    const time = `${String(Math.floor(minutes / 60)).padStart(2, '0')}:${String(
-      minutes % 60,
-    ).padStart(2, '0')}`;
-    const booked = calcMockBookedCount(
-      `${payload.dateKey}|${time}`,
-      payload.fineRule.slotCapacity,
-    );
-    const remainingCount = Math.max(0, payload.fineRule.slotCapacity - booked);
-
-    const status = resolvePreviewStatus({
-      date: payload.date,
-      fineRule: payload.fineRule,
-      remainingCount,
-      time,
-    });
-
-    return {
-      time,
-      status,
-      remainingCount,
-    };
-  });
-}
-
-/** 计算预览时段状态。 */
-function resolvePreviewStatus(payload: {
-  date: Date;
-  fineRule: PickupFineRuleDto;
-  remainingCount: number;
-  time: string;
-}): PickupPreviewStatus {
-  const now = new Date();
-  const today = toDateOnly(now);
-  const dateKey = toDateOnly(payload.date);
-  const slotMinutes = parseTimeToMinutes(payload.time);
-  const nowMinutes = now.getHours() * 60 + now.getMinutes();
-  const minAdvanceMinutes = payload.fineRule.minAdvanceHours * 60;
-
-  if (dateKey < today) return 'expired';
-  if (dateKey === today && slotMinutes - nowMinutes <= minAdvanceMinutes) {
-    return 'expired';
-  }
-  if (payload.remainingCount <= 0) return 'full';
-  if (payload.remainingCount <= 1) return 'almost';
-  return 'available';
-}
-
-/** 简单哈希，保障预览可复现。 */
-function calcMockBookedCount(seed: string, capacity: number) {
-  if (capacity <= 0) return 0;
-  let hash = 0;
-  for (const char of seed) {
-    hash = (hash * 31 + (char.codePointAt(0) ?? 0)) >>> 0;
-  }
-  if (hash % 7 === 0) return capacity;
-  if (hash % 5 === 0) return Math.max(0, capacity - 1);
-  return hash % (capacity + 1);
-}
-
 function isSameDaySet(a: PickupWeekDay[], b: PickupWeekDay[]) {
   if (a.length !== b.length) return false;
   return a.every((day, index) => day === b[index]);
 }
-
-function toDateOnly(date: Date) {
-  const year = date.getFullYear();
-  const month = String(date.getMonth() + 1).padStart(2, '0');
-  const day = String(date.getDate()).padStart(2, '0');
-  return `${year}-${month}-${day}`;
-}
-
-function addDays(baseDate: Date, days: number) {
-  const next = new Date(baseDate);
-  next.setDate(baseDate.getDate() + days);
-  return next;
-}
-
-function resolvePreviewSubLabel(offset: number, dayOfWeek: PickupWeekDay) {
-  const dayText = WEEKDAY_OPTIONS.find(
-    (item) => item.value === dayOfWeek,
-  )?.label;
-  if (offset === 0) return `${dayText} 今天`;
-  if (offset === 1) return `${dayText} 明天`;
-  if (offset === 2) return `${dayText} 后天`;
-  return dayText ?? '';
-}
diff --git a/apps/web-antd/src/views/store/pickup/composables/useStorePickupPage.ts b/apps/web-antd/src/views/store/pickup/composables/useStorePickupPage.ts
index a457394..e55d81e 100644
--- a/apps/web-antd/src/views/store/pickup/composables/useStorePickupPage.ts
+++ b/apps/web-antd/src/views/store/pickup/composables/useStorePickupPage.ts
@@ -5,7 +5,11 @@ import type { StoreListItemDto } from '#/api/store';
  * 2. 组合数据加载、复制、大时段与精细规则动作。
  * 3. 对外暴露视图层可直接消费的状态与方法。
  */
-import type { PickupBasicSettingsDto, PickupSlotDto } from '#/api/store-pickup';
+import type {
+  PickupBasicSettingsDto,
+  PickupPreviewDayDto,
+  PickupSlotDto,
+} from '#/api/store-pickup';
 import type {
   PickupDrawerMode,
   PickupSettingsSnapshot,
@@ -16,7 +20,6 @@ import { computed, onActivated, onMounted, reactive, ref, watch } from 'vue';
 
 import {
   ALL_WEEK_DAYS,
-  DEFAULT_BIG_SLOTS,
   DEFAULT_FINE_RULE,
   DEFAULT_PICKUP_BASIC_SETTINGS,
   DEFAULT_PICKUP_MODE,
@@ -30,13 +33,10 @@ import { createFineRuleActions } from './pickup-page/fine-rule-actions';
 import {
   calcReservedPercent,
   cloneBasicSettings,
-  cloneBigSlots,
   cloneFineRule,
   clonePreviewDays,
   createSlotId,
   formatDayOfWeeksText,
-  generatePreviewDays,
-  sortSlots,
 } from './pickup-page/helpers';
 import { createSlotActions } from './pickup-page/slot-actions';
 
@@ -56,11 +56,9 @@ export function useStorePickupPage() {
   const basicSettings = reactive<PickupBasicSettingsDto>(
     cloneBasicSettings(DEFAULT_PICKUP_BASIC_SETTINGS),
   );
-  const bigSlots = ref<PickupSlotDto[]>(
-    sortSlots(cloneBigSlots(DEFAULT_BIG_SLOTS)),
-  );
+  const bigSlots = ref<PickupSlotDto[]>([]);
   const fineRule = reactive(cloneFineRule(DEFAULT_FINE_RULE));
-  const previewDays = ref(generatePreviewDays(fineRule));
+  const previewDays = ref<PickupPreviewDayDto[]>([]);
   const selectedPreviewDate = ref(previewDays.value[0]?.date ?? '');
   const snapshot = ref<null | PickupSettingsSnapshot>(null);
 
@@ -187,7 +185,6 @@ export function useStorePickupPage() {
     handleSaveFineRule,
     isFineDaySelected,
     quickSelectFineDays,
-    refreshPreviewDays,
     setFineDayEndTime,
     setFineDayStartTime,
     setFineIntervalMinutes,
@@ -197,7 +194,6 @@ export function useStorePickupPage() {
     toggleFineDay,
   } = createFineRuleActions({
     fineRule,
-    previewDays,
     saveFineRule,
     selectedPreviewDate,
   });
@@ -252,7 +248,7 @@ export function useStorePickupPage() {
     previewDays.value =
       snapshot.value?.previewDays && snapshot.value.previewDays.length > 0
         ? clonePreviewDays(snapshot.value.previewDays)
-        : generatePreviewDays(fineRule);
+        : [];
     selectedPreviewDate.value = previewDays.value[0]?.date ?? '';
   }
 
@@ -265,9 +261,9 @@ export function useStorePickupPage() {
       basicSettings.bookingDays = DEFAULT_PICKUP_BASIC_SETTINGS.bookingDays;
       basicSettings.maxItemsPerOrder =
         DEFAULT_PICKUP_BASIC_SETTINGS.maxItemsPerOrder;
-      bigSlots.value = sortSlots(cloneBigSlots(DEFAULT_BIG_SLOTS));
+      bigSlots.value = [];
       Object.assign(fineRule, cloneFineRule(DEFAULT_FINE_RULE));
-      previewDays.value = generatePreviewDays(fineRule);
+      previewDays.value = [];
       selectedPreviewDate.value = previewDays.value[0]?.date ?? '';
       snapshot.value = null;
       return;
@@ -276,6 +272,20 @@ export function useStorePickupPage() {
     selectedPreviewDate.value = previewDays.value[0]?.date ?? '';
   });
 
+  watch(previewDays, (days) => {
+    if (days.length === 0) {
+      selectedPreviewDate.value = '';
+      return;
+    }
+
+    const hasCurrent = days.some(
+      (item) => item.date === selectedPreviewDate.value,
+    );
+    if (!hasCurrent) {
+      selectedPreviewDate.value = days[0]?.date ?? '';
+    }
+  });
+
   // 9. 页面首屏初始化。
   onMounted(loadStores);
   // 10. 路由回到当前页时刷新门店列表，避免使用旧缓存。
@@ -316,7 +326,6 @@ export function useStorePickupPage() {
     previewDays,
     quickSelectFineDays,
     quickSelectSlotDays,
-    refreshPreviewDays,
     resetBasicSettings,
     resetFineRule,
     resetFromSnapshot,