import { useCallback, useEffect, useRef, useState, type MouseEvent as ReactMouseEvent, type ReactNode } from "react";
import { Search, Plus, Download, MapPin, Building2, User, Phone, X, Clock, FileText, Calendar, ChevronDown, ChevronRight, Check } from "lucide-react";
import { motion, AnimatePresence } from "motion/react";
import { useLocation } from "react-router-dom";
import {
  canUsePermission,
  checkChannelExpansionDuplicate,
  checkCrmExpansionDuplicate,
  checkSalesExpansionDuplicate,
  createChannelExpansion,
  createCrmExpansion,
  createSalesExpansion,
  decodeExpansionMultiValue,
  getCrmExpansionOverview,
  getExpansionCityOptions,
  getExpansionMeta,
  getExpansionOverview,
  getOpportunityExpansionOptions,
  getOpportunityMeta,
  getStoredCurrentUserId,
  listMyPermissions,
  moveChannelToCrm,
  moveCrmToChannel,
  updateChannelExpansion,
  updateCrmExpansion,
  updateSalesExpansion,
  type ChannelExpansionContact,
  type ChannelExpansionItem,
  type CrmExpansionContact,
  type CrmExpansionItem,
  type CrmId,
  type CreateChannelExpansionPayload,
  type CreateCrmExpansionPayload,
  type CreateSalesExpansionPayload,
  type ExpansionDictOption,
  type ExpansionFollowUp,
  type MoveChannelToCrmPayload,
  type MoveCrmToChannelPayload,
  type SalesExpansionItem,
  type UpdateCrmExpansionPayload,
} from "@/lib/auth";
import { AdaptiveSelect } from "@/components/AdaptiveSelect";
import { SearchableSelect, type SearchableOption } from "@/components/SearchableSelect";
import { SearchOrInputSelect } from "@/components/SearchOrInputSelect";
import {
  ChannelContactRows,
  buildChannelContactRows,
  createDefaultChannelContacts,
  validateChannelContactRows,
} from "@/features/crmQuickCreate/shared";
import { useIsMobileViewport } from "@/hooks/useIsMobileViewport";
import { useIsWecomBrowser } from "@/hooks/useIsWecomBrowser";
import { cn } from "@/lib/utils";

type ExpansionItem = SalesExpansionItem | ChannelExpansionItem | CrmExpansionItem;
const LIST_PAGE_SIZE = 10;
const SUPPLIER_SEARCH_LIMIT = 20;
const SUPPLIER_SEARCH_DEBOUNCE_MS = 300;
type ExpansionTab = "sales" | "channel" | "crm";
type ExpansionLocationState = { tab?: ExpansionTab; selectedId?: CrmId } | null;
type ExpansionExportFilters = {
  keyword?: string;
  intent?: string;
  officeName?: string;
  industry?: string;
  employmentStatus?: string;
  province?: string;
  certificationLevel?: string;
  channelIndustry?: string;
  channelAttribute?: string;
  establishedStartDate?: string;
  establishedEndDate?: string;
  hasRelatedProject?: string;
  relatedProjectStageCodes?: string[];
  selectedSalesFields?: SalesExportFieldKey[];
  selectedChannelFields?: ChannelExportFieldKey[];
  selectedCrmFields?: CrmExportFieldKey[];
};
type SalesExportFieldKey =
  | "employeeNo"
  | "name"
  | "phone"
  | "officeName"
  | "dept"
  | "title"
  | "industry"
  | "intent"
  | "active"
  | "hasExp"
  | "relatedProjects"
  | "relatedProjectAmount"
  | "owner"
  | "createdAt"
  | "updatedAt"
  | "followUps";
type ChannelExportFieldKey =
  | "channelCode"
  | "name"
  | "province"
  | "city"
  | "officeAddress"
  | "coverageItems"
  | "certificationLevel"
  | "channelIndustry"
  | "channelAttribute"
  | "internalAttribute"
  | "intent"
  | "establishedDate"
  | "revenue"
  | "size"
  | "registeredCapital"
  | "hasDesktopExp"
  | "relatedProjects"
  | "relatedProjectAmount"
  | "contacts"
  | "notes"
  | "owner"
  | "createdAt"
  | "updatedAt"
  | "followUps";
type CrmExportFieldKey =
  | "endUser"
  | "officeName"
  | "industryAttr"
  | "extensionType"
  | "purchaseDateText"
  | "warrantyExpiryText"
  | "onlineStatus"
  | "supplierName"
  | "h3cContactName"
  | "hasExpansionOpportunity"
  | "softwarePoints"
  | "expansionTimeText"
  | "expansionScale"
  | "hasMaintenanceOpportunity"
  | "contacts"
  | "followUps"
  | "owner"
  | "createdAt"
  | "updatedAt";
type ExportColumnKind = "default" | "longText" | "project" | "contact" | "followup";
type ExportCellValue = string | number;
type RelatedProjectLike = {
  opportunityCode?: string;
  opportunityName?: string;
  stageCode?: string;
  stage?: string;
  amount?: number | null;
};
type ExportColumn<T, K extends string> = {
  key: K;
  label: string;
  kind?: ExportColumnKind;
  numFmt?: string;
  value: (item: T) => ExportCellValue;
};
type SalesCreateField =
  | "employeeNo"
  | "officeName"
  | "candidateName"
  | "mobile"
  | "targetDept"
  | "industry"
  | "title"
  | "intentLevel"
  | "employmentStatus"
  | "regionProvince"
  | "regionCity"
  | "regionItems";
type ChannelField =
  | "channelName"
  | "province"
  | "city"
  | "coverageProvince"
  | "coverageCity"
  | "coverageItems"
  | "officeAddress"
  | "channelIndustry"
  | "certificationLevel"
  | "annualRevenue"
  | "staffSize"
  | "registeredCapital"
  | "contactEstablishedDate"
  | "intentLevel"
  | "channelAttribute"
  | "channelAttributeCustom"
  | "internalAttribute"
  | "contacts";
function createEmptyCrmContact(): CrmExpansionContact {
  return {
    name: "",
    mobile: "",
    title: "",
  };
}

const CHANNEL_REVENUE_LABEL = "年度营业额(万元)";
const CHANNEL_REGISTERED_CAPITAL_LABEL = "注册资金(万元)";
const EXPANSION_CREATE_PERMISSION = "expansion:create";
const EXPANSION_EXPORT_PREFERENCES_STORAGE_KEY = "crm:expansion-export-preferences";

const defaultSalesForm: CreateSalesExpansionPayload = {
  employeeNo: "",
  candidateName: "",
  officeName: "",
  mobile: "",
  industry: "",
  title: "",
  intentLevel: "medium",
  hasDesktopExp: false,
  employmentStatus: "active",
  regionProvince: [],
  regionCity: [],
  regionItems: [],
};

const defaultChannelForm: CreateChannelExpansionPayload = {
  channelCode: "",
  channelName: "",
  province: "",
  city: "",
  coverageProvince: [],
  coverageCity: [],
  coverageItems: [],
  officeAddress: "",
  channelIndustry: [],
  certificationLevel: "",
  contactEstablishedDate: "",
  intentLevel: "medium",
  hasDesktopExp: false,
  channelAttribute: [],
  channelAttributeCustom: "",
  internalAttribute: [],
  stage: "initial_contact",
  remark: "",
  contacts: createDefaultChannelContacts(),
};

const defaultMoveChannelForm: MoveChannelToCrmPayload = {
  officeName: "",
  extensionType: [],
  purchaseDate: "",
  warrantyExpiry: "",
  onlineStatus: "",
  supplierId: 0,
  supplierName: "",
  h3cContactId: 0,
  h3cContactName: "",
  hasExpansionOpportunity: "",
  softwarePoints: undefined,
  expansionTime: "",
  expansionScale: "",
  hasMaintenanceOpportunity: "",
  contacts: [],
};

const defaultMoveCrmForm: MoveCrmToChannelPayload = {
  province: "",
  city: "",
  officeAddress: "",
  certificationLevel: "",
  annualRevenue: 0,
  staffSize: 0,
  registeredCapital: 0,
  channelAttribute: [],
  channelAttributeCustom: "",
  internalAttribute: [],
  coverageProvince: [],
  coverageCity: [],
  coverageItems: [],
  intentLevel: "",
  hasDesktopExp: false,
  stage: "initial_contact",
  landedFlag: false,
  expectedSignDate: "",
  contacts: createDefaultChannelContacts(),
};

/** 在当前日期基础上加指定年数，返回 YYYY-MM-DD */
function addYearsToDate(dateText: string, years: number) {
  const normalized = dateText?.trim();
  if (!normalized) {
    return "";
  }
  const match = normalized.match(/^(\d{4})-(\d{2})-(\d{2})/);
  if (!match) {
    return normalized;
  }
  const year = Number(match[1]);
  const month = Number(match[2]);
  const day = Number(match[3]);
  if (!Number.isFinite(year) || !Number.isFinite(month) || !Number.isFinite(day)) {
    return normalized;
  }
  const next = new Date(year + years, month - 1, day);
  const nextYear = next.getFullYear();
  const nextMonth = `${next.getMonth() + 1}`.padStart(2, "0");
  const nextDay = `${next.getDate()}`.padStart(2, "0");
  return `${nextYear}-${nextMonth}-${nextDay}`;
}

/** 尝试用省份中文名匹配代表处字典项，匹配到返回字典 value，否则返回空 */
function matchOfficeValueByProvince(province: string | undefined, officeOptions: ExpansionDictOption[]) {
  const normalized = province?.trim();
  if (!normalized) {
    return "";
  }
  const exactMatch = officeOptions.find((option) => option.label === normalized);
  if (exactMatch) {
    return exactMatch.value ?? "";
  }
  // cnarea 省份为全称（如"重庆市"），字典 label 为简称（如"重庆"），按前缀匹配回退
  const prefixMatch = officeOptions.find((option) => {
    const label = option.label?.trim();
    return label ? normalized.startsWith(label) : false;
  });
  return prefixMatch?.value ?? "";
}

function isOtherOption(option?: ExpansionDictOption) {
  const candidate = `${option?.label ?? ""}${option?.value ?? ""}`.toLowerCase();
  return candidate.includes("其他") || candidate.includes("其它") || candidate.includes("other");
}

function normalizeOptionalText(value?: string) {
  const trimmed = value?.trim();
  return trimmed ? trimmed : undefined;
}

function loadExpansionExportPreferences(): ExpansionExportFilters {
  if (typeof window === "undefined") {
    return {};
  }
  try {
    const rawValue = window.localStorage.getItem(EXPANSION_EXPORT_PREFERENCES_STORAGE_KEY);
    if (!rawValue) {
      return {};
    }
    const parsed = JSON.parse(rawValue);
    return typeof parsed === "object" && parsed ? parsed as ExpansionExportFilters : {};
  } catch {
    return {};
  }
}

function persistExpansionExportPreferences(filters: ExpansionExportFilters) {
  if (typeof window === "undefined") {
    return;
  }
  try {
    window.localStorage.setItem(EXPANSION_EXPORT_PREFERENCES_STORAGE_KEY, JSON.stringify(filters));
  } catch {
    // ignore storage failures
  }
}

function dedupeExpansionItemsById<T extends { id?: number | string | null }>(items: T[]) {
  const seenIds = new Set<number | string>();
  return items.filter((item) => {
    if (item.id === null || item.id === undefined) {
      return true;
    }
    if (seenIds.has(item.id)) {
      return false;
    }
    seenIds.add(item.id);
    return true;
  });
}

function getFieldInputClass(hasError: boolean) {
  return cn(
    "crm-input-box crm-input-text w-full border bg-white outline-none focus:border-violet-500 focus:ring-1 focus:ring-violet-500 dark:bg-slate-900/50",
    hasError
      ? "border-rose-400 bg-rose-50/60 focus:border-rose-500 focus:ring-rose-500 dark:border-rose-500/70 dark:bg-rose-500/10"
      : "border-slate-200 dark:border-slate-800",
  );
}

function normalizeExportText(value?: string | number | boolean | null) {
  if (value === null || value === undefined) {
    return "";
  }
  const normalized = String(value).replace(/\r?\n/g, " ").trim();
  if (!normalized || normalized === "无") {
    return "";
  }
  return normalized;
}

// 后端 coverageItems 形如「省份|城市，省份|城市」，导出时转为「省份-城市、省份-城市」。
function formatCoverageItemsExport(value?: string) {
  if (!value?.trim()) {
    return "";
  }
  return value
    .split("，")
    .map((part) => {
      const [province, city] = part.split("|");
      const p = province?.trim() || "";
      const c = city?.trim() || "";
      return c ? `${p}-${c}` : p;
    })
    .filter(Boolean)
    .join("、");
}

function normalizeExportNumber(value?: string | number | null) {
  if (value === null || value === undefined) {
    return undefined;
  }
  if (typeof value === "number") {
    return Number.isFinite(value) ? value : undefined;
  }
  const normalized = value.replace(/[¥,\s]|人/g, "").trim();
  if (!normalized) {
    return undefined;
  }
  const parsed = Number(normalized);
  return Number.isFinite(parsed) ? parsed : undefined;
}

function normalizeExportFilterText(value?: string | number | boolean | null) {
  return normalizeExportText(value).toLowerCase();
}

function matchesExportKeyword(value: string, keyword?: string) {
  const normalizedKeyword = normalizeExportFilterText(keyword);
  return !normalizedKeyword || value.toLowerCase().includes(normalizedKeyword);
}

function matchesTextFilter(value: string | undefined, filterValue?: string) {
  const normalizedFilter = normalizeExportFilterText(filterValue);
  if (!normalizedFilter) {
    return true;
  }
  return normalizeExportFilterText(value).includes(normalizedFilter);
}

function matchesDateRange(value?: string, startDate?: string, endDate?: string) {
  const normalizedValue = normalizeExportText(value).slice(0, 10);
  if (!normalizedValue) {
    return !startDate && !endDate;
  }
  if (startDate && normalizedValue < startDate) {
    return false;
  }
  if (endDate && normalizedValue > endDate) {
    return false;
  }
  return true;
}

function hasRelatedProjects(projects?: Array<{ amount?: number }>) {
  return Boolean(projects?.length);
}

function matchesRelatedProjectFilter(projects: Array<{ amount?: number }> | undefined, filterValue?: string) {
  if (filterValue === "yes") {
    return hasRelatedProjects(projects);
  }
  if (filterValue === "no") {
    return !hasRelatedProjects(projects);
  }
  return true;
}

function normalizeMultiSelectValues(values?: string[]) {
  return Array.from(new Set((values ?? []).map((value) => value?.trim()).filter((value): value is string => Boolean(value))));
}

function getDictOptionValue(option?: ExpansionDictOption) {
  const value = option?.value?.trim() || option?.label?.trim() || "";
  return value;
}

function getDictOptionLabel(option?: ExpansionDictOption) {
  return option?.label?.trim() || option?.value?.trim() || "";
}

function getDictLabelByValue(value: string | undefined | null, options: ExpansionDictOption[]) {
  const target = value?.trim();
  if (!target) {
    return "";
  }
  const matched = options.find((option) => option.value?.trim() === target);
  return matched?.label?.trim() || target;
}

function isLostProjectStageOption(option?: ExpansionDictOption) {
  const value = getDictOptionValue(option).toLowerCase();
  const label = getDictOptionLabel(option).toLowerCase();
  return value === "lost" || value.includes("丢单") || label.includes("丢单") || value.includes("放弃") || label.includes("放弃");
}

function getDefaultRelatedProjectStageCodes(options: ExpansionDictOption[]) {
  const orderedValues = options.map(getDictOptionValue).filter(Boolean);
  const preferredValues = options.filter((option) => !isLostProjectStageOption(option)).map(getDictOptionValue).filter(Boolean);
  return normalizeMultiSelectValues(preferredValues.length > 0 ? preferredValues : orderedValues);
}

function applyDefaultRelatedProjectStageFilters(filters: ExpansionExportFilters, options: ExpansionDictOption[]) {
  if (filters.relatedProjectStageCodes !== undefined) {
    return {
      ...filters,
      relatedProjectStageCodes: normalizeMultiSelectValues(filters.relatedProjectStageCodes),
    };
  }
  if (options.length <= 0) {
    return filters;
  }
  return {
    ...filters,
    relatedProjectStageCodes: getDefaultRelatedProjectStageCodes(options),
  };
}

function areSameStringSets(leftValues?: string[], rightValues?: string[]) {
  const left = normalizeMultiSelectValues(leftValues).sort();
  const right = normalizeMultiSelectValues(rightValues).sort();
  return left.length === right.length && left.every((value, index) => value === right[index]);
}

function filterRelatedProjectsByStage<T extends RelatedProjectLike>(projects: T[] | undefined, selectedStageCodes?: string[]) {
  const projectList = projects ?? [];
  if (selectedStageCodes === undefined) {
    return projectList;
  }

  const normalizedStageCodes = new Set(normalizeMultiSelectValues(selectedStageCodes));
  if (normalizedStageCodes.size <= 0) {
    return [];
  }

  return projectList.filter((project) => {
    const projectStageCode = project.stageCode?.trim();
    const projectStageLabel = project.stage?.trim();
    return (projectStageCode && normalizedStageCodes.has(projectStageCode))
      || (projectStageLabel && normalizedStageCodes.has(projectStageLabel));
  });
}

function withFilteredSalesRelatedProjects(item: SalesExpansionItem, filters: ExpansionExportFilters): SalesExpansionItem {
  return {
    ...item,
    relatedProjects: filterRelatedProjectsByStage(item.relatedProjects, filters.relatedProjectStageCodes),
  };
}

function withFilteredChannelRelatedProjects(item: ChannelExpansionItem, filters: ExpansionExportFilters): ChannelExpansionItem {
  return {
    ...item,
    relatedProjects: filterRelatedProjectsByStage(item.relatedProjects, filters.relatedProjectStageCodes),
  };
}

function matchesSalesExportFilters(item: SalesExpansionItem, filters: ExpansionExportFilters) {
  const keywordText = [
    item.employeeNo,
    item.name,
    item.owner,
    item.phone,
    item.officeName,
    item.dept,
    item.title,
    item.industry,
    item.intent,
    item.relatedProjects?.map((project) => `${project.opportunityCode ?? ""} ${project.opportunityName ?? ""}`).join(" "),
    item.followUps?.map((followUp) => `${followUp.content ?? ""} ${followUp.evaluationContent ?? ""} ${followUp.nextPlan ?? ""}`).join(" "),
  ].map(normalizeExportText).filter(Boolean).join(" ");

  if (!matchesExportKeyword(keywordText, filters.keyword)) {
    return false;
  }
  if (!matchesTextFilter(item.intent || item.intentLevel, filters.intent)) {
    return false;
  }
  if (!matchesTextFilter(item.officeName, filters.officeName)) {
    return false;
  }
  if (!matchesTextFilter(item.industry, filters.industry)) {
    return false;
  }
  if (filters.employmentStatus === "active" && item.active !== true && item.employmentStatus !== "active") {
    return false;
  }
  if (filters.employmentStatus === "inactive" && item.active !== false && item.employmentStatus !== "inactive") {
    return false;
  }
  return matchesRelatedProjectFilter(item.relatedProjects, filters.hasRelatedProject);
}

function matchesChannelExportFilters(item: ChannelExpansionItem, filters: ExpansionExportFilters) {
  const keywordText = [
    item.channelCode,
    item.name,
    item.owner,
    item.province,
    item.city,
    item.officeAddress,
    item.certificationLevel,
    item.channelIndustry,
    item.channelAttribute,
    item.internalAttribute,
    item.intent,
    item.primaryContactName,
    item.primaryContactMobile,
    item.contacts?.map((contact) => `${contact.duty ?? ""} ${contact.name ?? ""} ${contact.mobile ?? ""} ${contact.title ?? ""} ${contact.wecomAdded ?? ""} ${contact.specialNote ?? ""}`).join(" "),
    item.relatedProjects?.map((project) => `${project.opportunityCode ?? ""} ${project.opportunityName ?? ""}`).join(" "),
    item.followUps?.map((followUp) => `${followUp.content ?? ""} ${followUp.evaluationContent ?? ""} ${followUp.nextPlan ?? ""}`).join(" "),
  ].map(normalizeExportText).filter(Boolean).join(" ");

  if (!matchesExportKeyword(keywordText, filters.keyword)) {
    return false;
  }
  if (!matchesTextFilter(item.intent || item.intentLevel, filters.intent)) {
    return false;
  }
  if (!matchesTextFilter(item.province, filters.province)) {
    return false;
  }
  if (!matchesTextFilter(item.certificationLevel, filters.certificationLevel)) {
    return false;
  }
  if (!matchesTextFilter(item.channelIndustry, filters.channelIndustry)) {
    return false;
  }
  if (!matchesTextFilter(item.channelAttribute, filters.channelAttribute)) {
    return false;
  }
  if (!matchesDateRange(item.establishedDate, filters.establishedStartDate, filters.establishedEndDate)) {
    return false;
  }
  return matchesRelatedProjectFilter(item.relatedProjects, filters.hasRelatedProject);
}

function matchesCrmExportFilters(item: CrmExpansionItem, filters: ExpansionExportFilters, officeOptions: ExpansionDictOption[]) {
  const keywordText = [
    item.endUser,
    item.owner,
    getDictLabelByValue(item.officeName, officeOptions),
    item.industryAttr,
    item.supplierName,
    item.h3cContactName,
    item.contacts?.map((contact) => `${contact.name ?? ""} ${contact.mobile ?? ""} ${contact.title ?? ""}`).join(" "),
    item.followUps?.map((followUp) => `${followUp.content ?? ""} ${followUp.evaluationContent ?? ""} ${followUp.nextPlan ?? ""}`).join(" "),
  ].map(normalizeExportText).filter(Boolean).join(" ");

  if (!matchesExportKeyword(keywordText, filters.keyword)) {
    return false;
  }
  if (filters.officeName && getDictLabelByValue(item.officeName, officeOptions) !== filters.officeName) {
    return false;
  }
  return true;
}

function formatExportBoolean(value?: boolean, trueLabel = "是", falseLabel = "否") {
  if (value === null || value === undefined) {
    return "";
  }
  return value ? trueLabel : falseLabel;
}

function formatExportFollowUps(followUps?: ExpansionFollowUp[]) {
  if (!followUps?.length) {
    return "";
  }
  return followUps
    .map((followUp) => {
      const summary = getExpansionFollowUpSummary(followUp);
      const lines = [
        [normalizeExportText(followUp.date), normalizeExportText(followUp.type)].filter(Boolean).join(" "),
        normalizeExportText(summary.visitStartTime) ? `拜访时间：${normalizeExportText(summary.visitStartTime)}` : "",
        normalizeExportText(summary.evaluationContent) ? `沟通内容：${normalizeExportText(summary.evaluationContent)}` : "",
        normalizeExportText(summary.nextPlan) ? `后续规划：${normalizeExportText(summary.nextPlan)}` : "",
      ].filter(Boolean);
      return lines.join("\n");
    })
    .filter(Boolean)
    .join("\n\n");
}

function formatExportProjectCell(project?: { opportunityCode?: string; opportunityName?: string; amount?: number | null }) {
  if (!project) {
    return "";
  }
  const segments = [
    normalizeExportText(project.opportunityCode) ? `编码：${normalizeExportText(project.opportunityCode)}` : "",
    normalizeExportText(project.opportunityName) ? `项目名称：${normalizeExportText(project.opportunityName)}` : "",
    project.amount === null || project.amount === undefined ? "" : `金额：${formatAmount(Number(project.amount))}`,
  ].filter(Boolean);
  return segments.join("｜");
}

function formatExportProjectListCell(projects?: Array<{ opportunityCode?: string; opportunityName?: string; amount?: number | null }>) {
  if (!projects?.length) {
    return "";
  }

  return projects
    .map((project) => {
      const content = formatExportProjectCell(project);
      return content || "";
    })
    .filter(Boolean)
    .join("\n");
}

function formatExportContactCell(
  contact?: {
    duty?: string | null;
    name?: string | null;
    mobile?: string | null;
    title?: string | null;
    birthday?: string | null;
    wecomAdded?: string | null;
    specialNote?: string | null;
  },
  wecomLabelByValue?: (value: string | null | undefined) => string,
) {
  if (!contact) {
    return "";
  }

  const wecomLabel = wecomLabelByValue ? wecomLabelByValue(contact.wecomAdded) : normalizeExportText(contact.wecomAdded);
  const segments = [
    normalizeExportText(contact.duty) ? `工作职责：${normalizeExportText(contact.duty)}` : "",
    normalizeExportText(contact.name) ? `姓名：${normalizeExportText(contact.name)}` : "",
    normalizeExportText(contact.title) ? `职务：${normalizeExportText(contact.title)}` : "",
    normalizeExportText(contact.mobile) ? `联系电话：${normalizeExportText(contact.mobile)}` : "",
    normalizeExportText(contact.birthday) ? `生日：${normalizeExportText(contact.birthday)}` : "",
    wecomLabel ? `是否加企业微信：${wecomLabel}` : "",
    normalizeExportText(contact.specialNote) ? `特别说明：${normalizeExportText(contact.specialNote)}` : "",
  ].filter(Boolean);
  return segments.join("｜");
}

function formatExportContactListCell(
  contacts?: Array<{
    duty?: string | null;
    name?: string | null;
    mobile?: string | null;
    title?: string | null;
    birthday?: string | null;
    wecomAdded?: string | null;
    specialNote?: string | null;
  }>,
  wecomLabelByValue?: (value: string | null | undefined) => string,
) {
  if (!contacts?.length) {
    return "";
  }

  return contacts
    .map((contact) => {
      const content = formatExportContactCell(contact, wecomLabelByValue);
      return content || "";
    })
    .filter(Boolean)
    .join("\n");
}

function getExcelDisplayWidth(value?: string | null) {
  if (!value) {
    return 0;
  }

  return Array.from(value).reduce((total, char) => total + (/[\u4e00-\u9fff\u3400-\u4dbf\uff00-\uffef]/.test(char) ? 2 : 1), 0);
}

function getExcelWrappedLineCount(value: string | null | undefined, columnWidth: number) {
  if (!value) {
    return 1;
  }

  const safeWidth = Math.max(1, Math.floor(columnWidth));
  return value.split("\n").reduce((total, line) => {
    const lineWidth = Math.max(1, getExcelDisplayWidth(line));
    return total + Math.max(1, Math.ceil(lineWidth / safeWidth));
  }, 0);
}

function formatExportFilenameTime(date = new Date()) {
  const year = date.getFullYear();
  const month = String(date.getMonth() + 1).padStart(2, "0");
  const day = String(date.getDate()).padStart(2, "0");
  const hours = String(date.getHours()).padStart(2, "0");
  const minutes = String(date.getMinutes()).padStart(2, "0");
  const seconds = String(date.getSeconds()).padStart(2, "0");
  return `${year}${month}${day}_${hours}${minutes}${seconds}`;
}

function downloadExcelFile(filename: string, content: BlobPart) {
  const blob = new Blob([content], { type: "application/vnd.openxmlformats-officedocument.spreadsheetml.sheet" });
  const objectUrl = window.URL.createObjectURL(blob);
  const link = document.createElement("a");
  link.href = objectUrl;
  link.download = filename;
  document.body.appendChild(link);
  link.click();
  document.body.removeChild(link);
  window.URL.revokeObjectURL(objectUrl);
}

const salesExportColumns: Array<ExportColumn<SalesExpansionItem, SalesExportFieldKey>> = [
  { key: "employeeNo", label: "工号", value: (item) => normalizeExportText(item.employeeNo) },
  { key: "name", label: "姓名", value: (item) => normalizeExportText(item.name) },
  { key: "phone", label: "联系方式", value: (item) => normalizeExportText(item.phone) },
  { key: "officeName", label: "代表处/办事处", value: (item) => normalizeExportText(item.officeName) },
  { key: "dept", label: "所属部门", value: (item) => normalizeExportText(item.dept) },
  { key: "title", label: "职务", value: (item) => normalizeExportText(item.title) },
  { key: "industry", label: "所属行业", value: (item) => normalizeExportText(item.industry) },
  { key: "intent", label: "合作意向", value: (item) => normalizeExportText(item.intent) },
  { key: "active", label: "销售是否在职", value: (item) => (item.active === null || item.active === undefined ? "" : item.active ? "是" : "否") },
  { key: "hasExp", label: "销售以前是否做过云桌面项目", value: (item) => formatExportBoolean(item.hasExp) },
  { key: "relatedProjects", label: "跟进的云桌面项目", kind: "project", value: (item) => formatExportProjectListCell(item.relatedProjects) },
  { key: "relatedProjectAmount", label: "跟进项目金额", numFmt: "#,##0.00", value: (item) => sumRelatedProjectAmount(item.relatedProjects) ?? "" },
  { key: "owner", label: "创建人", value: (item) => normalizeExportText(item.owner) },
  { key: "createdAt", label: "创建时间", value: (item) => normalizeExportText(item.createdAt) },
  { key: "updatedAt", label: "更新修改时间", value: (item) => normalizeExportText(item.updatedAt) },
  { key: "followUps", label: "跟进记录", kind: "followup", value: (item) => formatExportFollowUps(item.followUps) },
];

const defaultSalesExportFields: SalesExportFieldKey[] = [
  "employeeNo",
  "name",
  "phone",
  "officeName",
  "dept",
  "title",
  "industry",
  "intent",
  "active",
  "hasExp",
  "relatedProjects",
  "followUps",
];

function buildChannelExportColumns(isOptions: ExpansionDictOption[]): Array<ExportColumn<ChannelExpansionItem, ChannelExportFieldKey>> {
  const wecomLabelByValue = (value: string | null | undefined) => getDictLabelByValue(value, isOptions);
  return [
  { key: "name", label: "渠道名称", value: (item) => normalizeExportText(item.name) },
  { key: "province", label: "省份", value: (item) => normalizeExportText(item.province) },
  { key: "city", label: "市", value: (item) => normalizeExportText(item.city) },
  { key: "officeAddress", label: "办公地址", kind: "longText", value: (item) => normalizeExportText(item.officeAddress) },
  { key: "coverageItems", label: "覆盖地市", value: (item) => formatCoverageItemsExport(item.coverageItems) },
  { key: "channelIndustry", label: "聚焦行业", value: (item) => normalizeExportText(item.channelIndustry) },
  { key: "certificationLevel", label: "汇智内部认证级别", value: (item) => normalizeExportText(item.certificationLevel) },
  { key: "channelAttribute", label: "渠道属性", value: (item) => normalizeExportText(item.channelAttribute) },
  { key: "internalAttribute", label: "新华三内部属性", value: (item) => normalizeExportText(item.internalAttribute) },
  { key: "intent", label: "合作意向", value: (item) => normalizeExportText(item.intent) },
  { key: "establishedDate", label: "建立联系时间", value: (item) => normalizeExportText(item.establishedDate) },
  { key: "revenue", label: "年度营业额", numFmt: "#,##0.00", value: (item) => normalizeExportNumber(item.annualRevenue) ?? normalizeExportNumber(item.revenue) ?? "" },
  { key: "size", label: "人员规模", numFmt: "#,##0", value: (item) => normalizeExportNumber(item.size) ?? "" },
  { key: "registeredCapital", label: "注册资金", numFmt: "#,##0.00", value: (item) => normalizeExportNumber(item.registeredCapital) ?? "" },
  { key: "hasDesktopExp", label: "以前是否做过云桌面项目", value: (item) => formatExportBoolean(item.hasDesktopExp) },
  { key: "relatedProjects", label: "跟进的云桌面项目", kind: "project", value: (item) => formatExportProjectListCell(item.relatedProjects) },
  { key: "contacts", label: "人员信息", kind: "contact", value: (item) => formatExportContactListCell(item.contacts, wecomLabelByValue) },
  { key: "followUps", label: "跟进记录", kind: "followup", value: (item) => formatExportFollowUps(item.followUps) },
  { key: "channelCode", label: "编码", value: (item) => normalizeExportText(item.channelCode) },
  { key: "relatedProjectAmount", label: "跟进项目金额", numFmt: "#,##0.00", value: (item) => sumRelatedProjectAmount(item.relatedProjects) ?? "" },
  { key: "notes", label: "备注说明", kind: "longText", value: (item) => normalizeExportText(item.notes) },
  { key: "owner", label: "创建人", value: (item) => normalizeExportText(item.owner) },
  { key: "createdAt", label: "创建时间", value: (item) => normalizeExportText(item.createdAt) },
  { key: "updatedAt", label: "更新修改时间", value: (item) => normalizeExportText(item.updatedAt) },
  ];
}

const defaultChannelExportFields: ChannelExportFieldKey[] = [
  "name",
  "province",
  "city",
  "officeAddress",
  "channelIndustry",
  "certificationLevel",
  "channelAttribute",
  "internalAttribute",
  "intent",
  "establishedDate",
  "revenue",
  "size",
  "registeredCapital",
  "hasDesktopExp",
  "relatedProjects",
  "contacts",
  "followUps",
];

function buildCrmExportColumns(officeOptions: ExpansionDictOption[]): Array<ExportColumn<CrmExpansionItem, CrmExportFieldKey>> {
  return [
    { key: "endUser", label: "最终用户", value: (item) => normalizeExportText(item.endUser) },
    { key: "officeName", label: "代表处", value: (item) => getDictLabelByValue(item.officeName, officeOptions) },
    { key: "industryAttr", label: "行业属性", value: (item) => normalizeExportText(item.industryAttr) },
    { key: "extensionType", label: "类型", value: (item) => normalizeExportText(item.extensionType) },
    { key: "purchaseDateText", label: "采购时间", value: (item) => normalizeExportText(item.purchaseDateText) },
    { key: "warrantyExpiryText", label: "过保时间", value: (item) => normalizeExportText(item.warrantyExpiryText) },
    { key: "onlineStatus", label: "在线情况", value: (item) => normalizeExportText(item.onlineStatus) },
    { key: "supplierName", label: "进货商", value: (item) => normalizeExportText(item.supplierName) },
    { key: "h3cContactName", label: "新华三对接人", value: (item) => normalizeExportText(item.h3cContactName) },
    { key: "hasExpansionOpportunity", label: "是否有扩容机会", value: (item) => (item.hasExpansionOpportunity === "1" ? "是" : item.hasExpansionOpportunity === "0" ? "否" : "") },
    { key: "softwarePoints", label: "软件点数", value: (item) => (item.softwarePoints == null ? "" : String(item.softwarePoints)) },
    { key: "expansionTimeText", label: "扩容时间", value: (item) => normalizeExportText(item.expansionTimeText) },
    { key: "expansionScale", label: "扩容规模", value: (item) => normalizeExportText(item.expansionScale) },
    { key: "hasMaintenanceOpportunity", label: "是否有维保项目机会", value: (item) => (item.hasMaintenanceOpportunity === "1" ? "是" : item.hasMaintenanceOpportunity === "0" ? "否" : "") },
    { key: "contacts", label: "人员信息", kind: "contact", value: (item) => formatExportContactListCell(item.contacts) },
    { key: "followUps", label: "跟进记录", kind: "followup", value: (item) => formatExportFollowUps(item.followUps) },
    { key: "owner", label: "创建人", value: (item) => normalizeExportText(item.owner) },
    { key: "createdAt", label: "创建时间", value: (item) => normalizeExportText(item.createdAt) },
    { key: "updatedAt", label: "更新修改时间", value: (item) => normalizeExportText(item.updatedAt) },
  ];
}

const defaultCrmExportFields: CrmExportFieldKey[] = [
  "endUser",
  "officeName",
  "industryAttr",
  "extensionType",
  "purchaseDateText",
  "warrantyExpiryText",
  "onlineStatus",
  "softwarePoints",
  "expansionTimeText",
  "expansionScale",
  "hasMaintenanceOpportunity",
  "supplierName",
  "h3cContactName",
  "hasExpansionOpportunity",
  "contacts",
  "followUps",
];

function resolveSelectedExpansionFields<K extends string>(selectedFields: K[] | undefined, defaultFields: K[]) {
  return selectedFields === undefined ? defaultFields : selectedFields;
}

function buildExportRows<T, K extends string>(items: T[], columns: Array<ExportColumn<T, K>>) {
  return items.map((item) => columns.map((column) => column.value(item)));
}

function validateSalesCreateForm(form: CreateSalesExpansionPayload) {
  const errors: Partial<Record<SalesCreateField, string>> = {};

  if (!form.employeeNo?.trim()) {
    errors.employeeNo = "请填写工号";
  }
  if (!form.officeName?.trim()) {
    errors.officeName = "请选择代表处 / 办事处";
  }
  if (!form.candidateName?.trim()) {
    errors.candidateName = "请填写姓名";
  }
  if (!form.mobile?.trim()) {
    errors.mobile = "请填写联系方式";
  }
  if ((form.regionProvince?.length ?? 0) <= 0) {
    errors.regionProvince = "请选择所属区域";
  }
  if (!form.industry?.trim()) {
    errors.industry = "请选择所属行业";
  }
  if (!form.title?.trim()) {
    errors.title = "请填写职务";
  }
  if (!form.intentLevel?.trim()) {
    errors.intentLevel = "请选择合作意向";
  }
  if (!form.employmentStatus?.trim()) {
    errors.employmentStatus = "请选择销售是否在职";
  }

  return errors;
}

function validateChannelForm(form: CreateChannelExpansionPayload, channelOtherOptionValue?: string) {
  const errors: Partial<Record<ChannelField, string>> = {};

  if (!form.channelName?.trim()) {
    errors.channelName = "请填写渠道名称";
  }
  if (!form.province?.trim()) {
    errors.province = "请选择省份";
  }
  if (!form.city?.trim()) {
    errors.city = "请选择市";
  }
  if ((form.coverageProvince?.length ?? 0) <= 0) {
    errors.coverageProvince = "请选择覆盖省份";
  }
  if ((form.coverageCity?.length ?? 0) <= 0) {
    errors.coverageCity = "请选择覆盖市/区/县";
  }
  if (!form.officeAddress?.trim()) {
    errors.officeAddress = "请填写办公地址";
  }
  if (!form.certificationLevel?.trim()) {
    errors.certificationLevel = "请选择汇智内部认证级别";
  }
  if ((form.channelIndustry?.length ?? 0) <= 0) {
    errors.channelIndustry = "请选择聚焦行业";
  }
  if (!form.annualRevenue || form.annualRevenue <= 0) {
    errors.annualRevenue = `请填写${CHANNEL_REVENUE_LABEL}`;
  }
  if (!form.staffSize || form.staffSize <= 0) {
    errors.staffSize = "请填写人员规模";
  }
  if (!form.registeredCapital || form.registeredCapital <= 0) {
    errors.registeredCapital = `请填写${CHANNEL_REGISTERED_CAPITAL_LABEL}`;
  }
  if (!form.contactEstablishedDate?.trim()) {
    errors.contactEstablishedDate = "请选择建立联系时间";
  }
  if (!form.intentLevel?.trim()) {
    errors.intentLevel = "请选择合作意向";
  }
  if ((form.channelAttribute?.length ?? 0) <= 0) {
    errors.channelAttribute = "请选择渠道属性";
  }
  if (channelOtherOptionValue && form.channelAttribute?.includes(channelOtherOptionValue) && !form.channelAttributeCustom?.trim()) {
    errors.channelAttributeCustom = "请选择“其它”后请补充具体渠道属性";
  }
  if ((form.internalAttribute?.length ?? 0) <= 0) {
    errors.internalAttribute = "请选择新华三内部属性";
  }

  const contactValidation = validateChannelContactRows(form.contacts);
  if (contactValidation.error) {
    errors.contacts = contactValidation.error;
  }

  return { errors, invalidContactRows: contactValidation.invalidContactRows };
}

function validateCrmForm(form: CreateCrmExpansionPayload) {
  const errors: Partial<Record<keyof CreateCrmExpansionPayload, string>> = {};
  const invalidContactRows: number[] = [];
  if (!form.endUser?.trim()) errors.endUser = "请填写最终用户";
  if (!form.officeName?.trim()) errors.officeName = "请选择代表处";
  if ((form.industryAttr?.length ?? 0) <= 0) errors.industryAttr = "请选择行业属性";
  if ((form.extensionType?.length ?? 0) <= 0) errors.extensionType = "请选择类型";
  if (form.softwarePoints == null || Number.isNaN(form.softwarePoints) || form.softwarePoints < 0) errors.softwarePoints = "请填写软件点数";
  if (!form.purchaseDate?.trim()) errors.purchaseDate = "请选择采购时间";
  if (!form.warrantyExpiry?.trim()) errors.warrantyExpiry = "请选择过保时间";
  if (!form.onlineStatus?.trim()) errors.onlineStatus = "请选择在线情况";
  const contacts = form.contacts ?? [];
  if (contacts.length <= 0) {
    errors.contacts = "请至少填写一位联系人";
    invalidContactRows.push(0);
  } else {
    contacts.forEach((contact, index) => {
      const hasName = Boolean(contact.name?.trim());
      const hasMobile = Boolean(contact.mobile?.trim());
      const hasTitle = Boolean(contact.title?.trim());
      if (!hasName || !hasMobile || !hasTitle) {
        invalidContactRows.push(index);
      }
    });
    if (invalidContactRows.length > 0) {
      errors.contacts = "请完整填写每位联系人的姓名、联系电话和职位";
    }
  }
  if ((!form.supplierId || Number(form.supplierId) <= 0) && !form.supplierName?.trim()) errors.supplierId = "请选择或填写进货商";
  if ((!form.h3cContactId || Number(form.h3cContactId) <= 0) && !form.h3cContactName?.trim()) errors.h3cContactId = "请选择或填写新华三对接人";
  if (!form.hasExpansionOpportunity?.trim()) errors.hasExpansionOpportunity = "请选择是否有扩容机会";
  if (form.hasExpansionOpportunity === "1") {
    if (!form.expansionTime?.trim()) errors.expansionTime = "请选择扩容时间";
    if (!form.expansionScale?.trim()) errors.expansionScale = "请填写扩容规模";
  }
  if (!form.hasMaintenanceOpportunity?.trim()) errors.hasMaintenanceOpportunity = "请选择是否有维保项目机会";
  return { errors, invalidContactRows };
}

function normalizeSalesPayload(payload: CreateSalesExpansionPayload): CreateSalesExpansionPayload {
  return {
    employeeNo: payload.employeeNo.trim(),
    candidateName: payload.candidateName.trim(),
    officeName: normalizeOptionalText(payload.officeName),
    mobile: normalizeOptionalText(payload.mobile),
    email: normalizeOptionalText(payload.email),
    targetDept: normalizeOptionalText(payload.targetDept),
    industry: normalizeOptionalText(payload.industry),
    title: normalizeOptionalText(payload.title),
    intentLevel: normalizeOptionalText(payload.intentLevel) ?? "medium",
    stage: normalizeOptionalText(payload.stage) ?? "initial_contact",
    hasDesktopExp: Boolean(payload.hasDesktopExp),
    inProgress: payload.inProgress ?? true,
    employmentStatus: normalizeOptionalText(payload.employmentStatus) ?? "active",
    expectedJoinDate: normalizeOptionalText(payload.expectedJoinDate),
    remark: normalizeOptionalText(payload.remark),
    regionProvince: Array.from(new Set((payload.regionProvince ?? []).map((value) => value?.trim()).filter((value): value is string => Boolean(value)))),
    regionCity: Array.from(new Set((payload.regionCity ?? []).map((value) => value?.trim()).filter((value): value is string => Boolean(value)))),
    regionItems: (payload.regionItems ?? [])
      .map((item) => ({
        province: normalizeOptionalText(item.province) ?? "",
        city: normalizeOptionalText(item.city) ?? "",
      }))
      .filter((item) => item.province),
  };
}

function normalizeChannelPayload(payload: CreateChannelExpansionPayload): CreateChannelExpansionPayload {
  return {
    channelCode: normalizeOptionalText(payload.channelCode),
    officeAddress: normalizeOptionalText(payload.officeAddress),
    channelIndustry: Array.from(new Set((payload.channelIndustry ?? []).map((value) => value?.trim()).filter((value): value is string => Boolean(value)))),
    channelName: payload.channelName.trim(),
    province: normalizeOptionalText(payload.province),
    city: normalizeOptionalText(payload.city),
    coverageProvince: Array.from(new Set((payload.coverageProvince ?? []).map((value) => value?.trim()).filter((value): value is string => Boolean(value)))),
    coverageCity: Array.from(new Set((payload.coverageCity ?? []).map((value) => value?.trim()).filter((value): value is string => Boolean(value)))),
    coverageItems: (payload.coverageItems ?? [])
      .map((item) => ({
        province: normalizeOptionalText(item.province) ?? "",
        city: normalizeOptionalText(item.city) ?? "",
      }))
      .filter((item) => item.province),
    certificationLevel: normalizeOptionalText(payload.certificationLevel),
    annualRevenue: payload.annualRevenue || undefined,
    staffSize: payload.staffSize || undefined,
    registeredCapital: payload.registeredCapital || undefined,
    contactEstablishedDate: normalizeOptionalText(payload.contactEstablishedDate),
    intentLevel: normalizeOptionalText(payload.intentLevel) ?? "medium",
    hasDesktopExp: Boolean(payload.hasDesktopExp),
    channelAttribute: Array.from(new Set((payload.channelAttribute ?? []).map((value) => value?.trim()).filter((value): value is string => Boolean(value)))),
    channelAttributeCustom: normalizeOptionalText(payload.channelAttributeCustom),
    internalAttribute: Array.from(new Set((payload.internalAttribute ?? []).map((value) => value?.trim()).filter((value): value is string => Boolean(value)))),
    stage: normalizeOptionalText(payload.stage) ?? "initial_contact",
    remark: normalizeOptionalText(payload.remark),
    contacts: (payload.contacts ?? [])
      .map((contact) => ({
        duty: normalizeOptionalText(contact.duty),
        name: normalizeOptionalText(contact.name),
        mobile: normalizeOptionalText(contact.mobile),
        title: normalizeOptionalText(contact.title),
        birthday: normalizeOptionalText(contact.birthday),
        wecomAdded: normalizeOptionalText(contact.wecomAdded),
        specialNote: normalizeOptionalText(contact.specialNote),
      }))
      .filter((contact) => contact.name || contact.mobile || contact.title || contact.birthday || contact.wecomAdded || contact.specialNote),
  };
}

/**
 * 将后端返回的覆盖地市字符串（形如 "浙江省|杭州市，江苏省|南京市"）解析为 [{ province, city }] 数组，
 * 用于编辑回显 coverageItems，避免保存时因 coverageItems 为空而清空已保存的覆盖地市。
 */
function parseCoverageItemsString(rawValue?: string) {
  if (!rawValue) {
    return [];
  }
  const items: { province: string; city: string }[] = [];
  rawValue
    .split("，")
    .map((segment) => segment.trim())
    .filter(Boolean)
    .forEach((segment) => {
      const [province = "", city = ""] = segment.split("|");
      if (province) {
        items.push({ province: province.trim(), city: city.trim() });
      }
    });
  return items;
}

function normalizeOptionValue(rawValue: string | undefined, options: ExpansionDictOption[]) {
  const trimmed = rawValue?.trim();
  if (!trimmed) {
    return "";
  }

  const matched = options.find((option) => option.value === trimmed || option.label === trimmed);
  return matched?.value ?? trimmed;
}

function normalizeMultiOptionValues(rawValue: string | undefined, options: ExpansionDictOption[]) {
  const { values } = decodeExpansionMultiValue(rawValue);
  return Array.from(new Set(values.map((value) => normalizeOptionValue(value, options)).filter(Boolean)));
}

function ModalShell({
  title,
  subtitle,
  onClose,
  children,
  footer,
}: {
  title: string;
  subtitle: string;
  onClose: () => void;
  children: ReactNode;
  footer: ReactNode;
}) {
  const isMobileViewport = useIsMobileViewport();
  const isWecomBrowser = useIsWecomBrowser();
  const disableMobileMotion = isMobileViewport || isWecomBrowser;

  return (
    <>
      <motion.div
        initial={disableMobileMotion ? false : { opacity: 0 }}
        animate={{ opacity: 1 }}
        exit={disableMobileMotion ? undefined : { opacity: 0 }}
        onClick={onClose}
        className={cn("fixed inset-0 z-[70] bg-slate-900/35 dark:bg-slate-950/70", !disableMobileMotion && "backdrop-blur-sm")}
      />
      <motion.div
        initial={disableMobileMotion ? false : { opacity: 0, y: 20 }}
        animate={{ opacity: 1, y: 0 }}
        exit={disableMobileMotion ? undefined : { opacity: 0, y: 20 }}
        transition={disableMobileMotion ? { duration: 0 } : undefined}
        className="fixed inset-0 z-[80] px-0 pb-0 pt-[env(safe-area-inset-top)] sm:p-6"
      >
        <div className="mx-auto flex h-[calc(100dvh-env(safe-area-inset-top))] w-full items-end sm:h-full sm:max-w-3xl sm:items-center">
          <div className="flex h-[92dvh] w-full flex-col overflow-hidden rounded-t-3xl border border-slate-200 bg-white shadow-2xl dark:border-slate-800 dark:bg-slate-900 sm:h-full sm:rounded-3xl">
            <div className="flex items-center justify-between border-b border-slate-100 px-5 py-4 dark:border-slate-800 sm:px-6">
              <div>
                <h2 className="text-base font-semibold text-slate-900 dark:text-white sm:text-lg">{title}</h2>
                <p className="mt-1 text-xs leading-5 text-slate-500 dark:text-slate-400">{subtitle}</p>
              </div>
              <button onClick={onClose} className="rounded-full p-2 text-slate-400 transition-colors hover:bg-slate-100 dark:hover:bg-slate-800">
                <X className="h-5 w-5" />
              </button>
            </div>
            <div className="flex-1 overflow-y-auto px-5 py-5 sm:px-6">{children}</div>
            <div className="border-t border-slate-100 px-5 pb-[calc(1rem+env(safe-area-inset-bottom))] pt-4 dark:border-slate-800 sm:px-6 sm:pb-4">{footer}</div>
          </div>
        </div>
      </motion.div>
    </>
  );
}

function DetailItem({
  label,
  value,
  icon,
  className = "",
}: {
  label: string;
  value: ReactNode;
  icon?: ReactNode;
  className?: string;
}) {
  return (
    <div className={`crm-detail-item ${className}`.trim()}>
      <p className="crm-detail-label">
        {icon}
        {label}
      </p>
      <div className="crm-detail-value">{value}</div>
    </div>
  );
}

function RequiredMark() {
  return <span className="ml-1 text-rose-500">*</span>;
}

type ChannelAddressValue = {
  province?: string;
  city?: string;
  officeAddress?: string;
};

type ChannelAddressErrors = Partial<Record<keyof ChannelAddressValue, string>>;

/**
 * 地区级联选择器：选取省份后联动展示城市，作为单一复合控件使用（前端不分两个字段）。
 */
function AddressCascaderSelect({
  value,
  onChange,
  provinceOptions,
  getCities,
  isEdit,
  hasError,
}: {
  value: { province?: string; city?: string };
  onChange: (value: { province?: string; city?: string }) => void;
  provinceOptions: ExpansionDictOption[];
  getCities: (provinceName: string | undefined, isEdit: boolean) => Promise<ExpansionDictOption[]>;
  isEdit: boolean;
  hasError?: boolean;
}) {
  const [open, setOpen] = useState(false);
  const [activeProvince, setActiveProvince] = useState<string>("");
  const [cityOptions, setCityOptions] = useState<ExpansionDictOption[]>([]);
  const [loadingCity, setLoadingCity] = useState(false);
  const containerRef = useRef<HTMLDivElement | null>(null);
  const panelRef = useRef<HTMLDivElement | null>(null);

  const selectedProvinceLabel =
    provinceOptions.find((option) => option.value === value?.province)?.label ?? value?.province ?? "";

  const loadCities = async (province: string) => {
    setLoadingCity(true);
    setCityOptions([]);
    try {
      const options = await getCities(province, isEdit);
      setCityOptions(options ?? []);
    } catch {
      setCityOptions([]);
    } finally {
      setLoadingCity(false);
    }
  };

  useEffect(() => {
    if (!open) {
      return;
    }
    const initialProvince = value?.province || "";
    setActiveProvince(initialProvince);
    if (initialProvince) {
      void loadCities(initialProvince);
    } else {
      setCityOptions([]);
    }
    // eslint-disable-next-line react-hooks/exhaustive-deps
  }, [open]);

  useEffect(() => {
    if (!open) {
      return;
    }
    const handlePointerDown = (event: MouseEvent) => {
      const targetNode = event.target as Node;
      if (!containerRef.current?.contains(targetNode) && !panelRef.current?.contains(targetNode)) {
        setOpen(false);
      }
    };
    const handleEscape = (event: KeyboardEvent) => {
      if (event.key === "Escape") {
        setOpen(false);
      }
    };
    document.addEventListener("mousedown", handlePointerDown);
    document.addEventListener("keydown", handleEscape);
    return () => {
      document.removeEventListener("mousedown", handlePointerDown);
      document.removeEventListener("keydown", handleEscape);
    };
  }, [open]);

  const selectedCityLabel =
    activeProvince
      ? (cityOptions.find((option) => option.value === value?.city)?.label ?? value?.city ?? "")
      : "";

  const displayText = selectedProvinceLabel
    ? selectedCityLabel
      ? `${selectedProvinceLabel} / ${selectedCityLabel}`
      : `${selectedProvinceLabel} / 请选择市`
    : "请选择省份";

  return (
    <div ref={containerRef} className="relative">
      <button
        type="button"
        onClick={() => setOpen((current) => !current)}
        className={cn(
          "crm-btn-sm crm-input-text flex w-full items-center justify-between border border-slate-200 bg-white text-left outline-none transition-colors hover:border-slate-300 focus:border-violet-500 focus:ring-1 focus:ring-violet-500 dark:border-slate-800 dark:bg-slate-900/50 dark:hover:border-slate-700",
          hasError
            ? "border-rose-400 bg-rose-50/60 focus:border-rose-500 focus:ring-rose-500 dark:border-rose-500/70 dark:bg-rose-500/10"
            : "",
        )}
      >
        <span className={value?.province ? "break-anywhere text-slate-900 dark:text-white" : "crm-field-note"}>
          {displayText}
        </span>
        <ChevronDown className={cn("h-4 w-4 shrink-0 text-slate-400 transition-transform", open ? "rotate-180" : "")} />
      </button>

      {open ? (
        <div
          ref={panelRef}
          className="absolute left-0 top-full z-50 mt-2 w-[26rem] max-w-[calc(100vw-2rem)] overflow-hidden rounded-2xl border border-slate-200 bg-white shadow-2xl dark:border-slate-800 dark:bg-slate-900"
        >
          <div className="flex max-h-80">
            <div className="w-1/2 space-y-1 overflow-y-auto border-r border-slate-100 p-2 dark:border-slate-800">
              <p className="px-3 pb-1 text-xs font-semibold text-slate-400">省份</p>
              {provinceOptions.map((option) => {
                const isActive = activeProvince === option.value;
                return (
                  <button
                    key={option.value}
                    type="button"
                    onClick={() => {
                      setActiveProvince(option.value);
                      void loadCities(option.value);
                      // 省份变更同步到表单并重置市，避免显示仍停留在原省份/原市
                      onChange({ province: option.value, city: "" });
                    }}
                    className={cn(
                      "flex w-full items-center justify-between rounded-lg px-3 py-2 text-left text-sm transition-colors",
                      isActive
                        ? "bg-violet-600 text-white"
                        : "text-slate-700 hover:bg-slate-100 dark:text-slate-200 dark:hover:bg-slate-800",
                    )}
                  >
                    <span className="break-anywhere">{option.label || option.value}</span>
                    {isActive ? <ChevronRight className="h-4 w-4 shrink-0" /> : null}
                  </button>
                );
              })}
            </div>
            <div className="w-1/2 space-y-1 overflow-y-auto p-2">
              <p className="px-3 pb-1 text-xs font-semibold text-slate-400">市</p>
              {loadingCity ? (
                <div className="px-3 py-6 text-center text-sm text-slate-400">加载中…</div>
              ) : !activeProvince ? (
                <div className="px-3 py-6 text-center text-sm text-slate-400">请先选择省份</div>
              ) : cityOptions.length === 0 ? (
                <div className="px-3 py-6 text-center text-sm text-slate-400">暂无可筛选城市</div>
              ) : (
                cityOptions.map((option) => {
                  const isSelected = value?.province === activeProvince && value?.city === option.value;
                  return (
                    <button
                      key={option.value}
                      type="button"
                      onClick={() => {
                        onChange({ province: activeProvince, city: option.value });
                        setOpen(false);
                      }}
                      className={cn(
                        "flex w-full items-center justify-between rounded-lg px-3 py-2 text-left text-sm transition-colors",
                        isSelected
                          ? "bg-violet-600 text-white"
                          : "text-slate-700 hover:bg-slate-100 dark:text-slate-200 dark:hover:bg-slate-800",
                      )}
                    >
                      <span className="break-anywhere">{option.label || option.value}</span>
                      {isSelected ? <Check className="h-4 w-4 shrink-0" /> : null}
                    </button>
                  );
                })
              )}
            </div>
          </div>
        </div>
      ) : null}
    </div>
  );
}

/**
 * 渠道地址复合字段：省份、市、办公地址 作为一个前端字段维护。
 * 内部仍保存到三个数据库字段，但对外呈现为统一的地址区块。
 */
function ChannelAddressField({
  value,
  onChange,
  provinceOptions,
  isEdit,
  errors,
  loadCityOptions,
}: {
  value: ChannelAddressValue;
  onChange: (value: ChannelAddressValue) => void;
  provinceOptions: ExpansionDictOption[];
  isEdit: boolean;
  errors?: ChannelAddressErrors;
  loadCityOptions: (provinceName: string | undefined, isEdit: boolean) => Promise<ExpansionDictOption[]>;
}) {
  const addressValue = { province: value.province, city: value.city };
  const officeAddress = value.officeAddress || "";
  const areaHasError = Boolean(errors?.province || errors?.city);

  return (
    <>
      <label className="space-y-2">
        <span className="text-sm font-medium text-slate-700 dark:text-slate-300">办公地区<RequiredMark /></span>
        <AddressCascaderSelect
          value={addressValue}
          onChange={(next) => {
            onChange({ ...value, province: next.province, city: next.city });
          }}
          provinceOptions={provinceOptions}
          getCities={loadCityOptions}
          isEdit={isEdit}
          hasError={areaHasError}
        />
        {areaHasError ? <p className="text-xs text-rose-500">{errors?.province || errors?.city}</p> : null}
      </label>
      <label className="space-y-2">
        <span className="text-sm font-medium text-slate-700 dark:text-slate-300">详细地址<RequiredMark /></span>
        <input
          value={officeAddress}
          placeholder="请填写详细地址"
          onChange={(e) => onChange({ ...value, officeAddress: e.target.value })}
          className={getFieldInputClass(Boolean(errors?.officeAddress))}
        />
        {errors?.officeAddress ? <p className="text-xs text-rose-500">{errors.officeAddress}</p> : null}
      </label>
    </>
  );
}

/**
 * 覆盖地市级联选择器（多选）：省可多选，选中省后联动勾选该省城市，作为单一复合控件使用。
 * 对外仍以 coverageProvince / coverageCity 两个数组维护。
 */
function CoverageCascaderSelect({
  value,
  onChange,
  provinceOptions,
  getCities,
  isEdit,
  hasError,
}: {
  value: { provinces?: string[]; cities?: string[]; items?: { province?: string; city?: string }[] };
  onChange: (value: { provinces: string[]; cities: string[]; items: { province: string; city: string }[] }) => void;
  provinceOptions: ExpansionDictOption[];
  getCities: (provinceName: string | undefined, isEdit: boolean) => Promise<ExpansionDictOption[]>;
  isEdit: boolean;
  hasError?: boolean;
}) {
  const [open, setOpen] = useState(false);
  const [selection, setSelection] = useState<Record<string, string[]>>({});
  const [cityCache, setCityCache] = useState<Record<string, ExpansionDictOption[]>>({});
  const [loadingKeys, setLoadingKeys] = useState<Record<string, boolean>>({});
  const [activeProvince, setActiveProvince] = useState<string>("");
  const containerRef = useRef<HTMLDivElement | null>(null);
  const panelRef = useRef<HTMLDivElement | null>(null);

  useEffect(() => {
    if (!open) {
      return;
    }
    (async () => {
      const provinces = value?.provinces ?? [];
      const cities = value?.cities ?? [];
      const nextSelection: Record<string, string[]> = {};
      const nextCache: Record<string, ExpansionDictOption[]> = {};
      for (const province of provinces) {
        let options: ExpansionDictOption[] = [];
        try {
          options = (await getCities(province, isEdit)) ?? [];
        } catch {
          options = [];
        }
        nextCache[province] = options;
        const optionValues = new Set(options.map((option) => option.value));
        nextSelection[province] = cities.filter((city) => optionValues.has(city));
      }
      setCityCache(nextCache);
      setSelection(nextSelection);
      setActiveProvince(provinces[0] ?? "");
    })();
    // eslint-disable-next-line react-hooks/exhaustive-deps
  }, [open]);

  useEffect(() => {
    if (!open) {
      return;
    }
    const provinces = Object.keys(selection);
    const cities = provinces.flatMap((province) => selection[province] ?? []);
    const items = provinces.flatMap((province) => {
      const provinceCities = selection[province] ?? [];
      return provinceCities.length > 0
        ? provinceCities.map((city) => ({ province, city }))
        : [{ province, city: "" }];
    });
    onChange({ provinces, cities, items });
    // eslint-disable-next-line react-hooks/exhaustive-deps
  }, [open, selection]);

  // 打开编辑（或回显）时，依据已保存的成对 coverageItems 直接初始化 selection，
  // 使“省份：市/区/县”的对应关系在下拉未打开时也能正常展示。
  const hydratedCoverageRef = useRef("");
  useEffect(() => {
    if (open) {
      return;
    }
    const items = value?.items ?? [];
    const signature = items.map((item) => `${item.province}|${item.city}`).join("；");
    if (!signature || hydratedCoverageRef.current === signature) {
      return;
    }
    hydratedCoverageRef.current = signature;
    const nextSelection: Record<string, string[]> = {};
    for (const item of items) {
      if (!item.province) {
        continue;
      }
      const provinceCities = nextSelection[item.province] ?? (nextSelection[item.province] = []);
      if (item.city && !provinceCities.includes(item.city)) {
        provinceCities.push(item.city);
      }
    }
    setSelection(nextSelection);
    // eslint-disable-next-line react-hooks/exhaustive-deps
  }, [value?.items, open]);

  useEffect(() => {
    if (!open) {
      return;
    }
    const handlePointerDown = (event: MouseEvent) => {
      const targetNode = event.target as Node;
      if (!containerRef.current?.contains(targetNode) && !panelRef.current?.contains(targetNode)) {
        setOpen(false);
      }
    };
    const handleEscape = (event: KeyboardEvent) => {
      if (event.key === "Escape") {
        setOpen(false);
      }
    };
    document.addEventListener("mousedown", handlePointerDown);
    document.addEventListener("keydown", handleEscape);
    return () => {
      document.removeEventListener("mousedown", handlePointerDown);
      document.removeEventListener("keydown", handleEscape);
    };
  }, [open]);

  const loadProvinceCities = async (province: string) => {
    if (cityCache[province]) {
      return;
    }
    setLoadingKeys((current) => ({ ...current, [province]: true }));
    try {
      const options = (await getCities(province, isEdit)) ?? [];
      setCityCache((current) => ({ ...current, [province]: options }));
    } catch {
      setCityCache((current) => ({ ...current, [province]: [] }));
    } finally {
      setLoadingKeys((current) => {
        const next = { ...current };
        delete next[province];
        return next;
      });
    }
  };

  const toggleProvince = (province: string) => {
    setSelection((current) => {
      const next = { ...current };
      if (province in next) {
        delete next[province];
      } else {
        next[province] = [];
      }
      return next;
    });
    setActiveProvince(province);
    void loadProvinceCities(province);
  };

  const toggleCity = (city: string) => {
    if (!activeProvince) {
      return;
    }
    setSelection((current) => {
      const provinceCities = current[activeProvince] ?? [];
      const nextCities = provinceCities.includes(city)
        ? provinceCities.filter((item) => item !== city)
        : [...provinceCities, city];
      return { ...current, [activeProvince]: nextCities };
    });
  };

  const selectedCount = (Object.values(selection) as string[][]).reduce((sum, cities) => sum + cities.length, 0);

  // 面板未打开时（如刚进入编辑），selection 尚未初始化，直接依据 value 回显已保存的覆盖地市，
  // 避免编辑时"覆盖地市"显示为空。
  const valueProvinces = (value?.provinces ?? []).filter(Boolean);
  const hasSelection = Object.keys(selection).length > 0 || selectedCount > 0;
  const hasSelectionValue = hasSelection || (valueProvinces ?? []).length > 0;

  const handleClearCoverage = (event: ReactMouseEvent) => {
    event.stopPropagation();
    event.preventDefault();
    setSelection({});
    setActiveProvince(null);
    hydratedCoverageRef.current = "";
    onChange({ provinces: [], cities: [], items: [] });
  };

  const formatSelected = () => {
    if (!hasSelection && valueProvinces.length > 0) {
      const provinceLabels = valueProvinces.map(
        (province) => provinceOptions.find((option) => option.value === province)?.label ?? province,
      );
      const cityCount = (value?.cities ?? []).filter(Boolean).length;
      return cityCount > 0 ? `${provinceLabels.join("、")}（共${cityCount}个市）` : provinceLabels.join("、");
    }
    const parts: string[] = [];
    for (const option of provinceOptions) {
      const provinceCities = selection[option.value];
      if (provinceCities === undefined) {
        continue;
      }
      const provinceLabel = option.label || option.value;
      if (provinceCities.length === 0) {
        parts.push(provinceLabel);
        continue;
      }
      const cityLabels = provinceCities
        .map((cityValue) => (cityCache[option.value] ?? []).find((item) => item.value === cityValue)?.label ?? cityValue)
        .filter(Boolean);
      parts.push(`${provinceLabel}：${cityLabels.join("、")}`);
    }
    return parts.length > 0 ? parts.join("，") : "请选择覆盖地市（可多选）";
  };

  return (
    <div ref={containerRef} className="relative">
      <button
        type="button"
        onClick={() => setOpen((current) => !current)}
        className={cn(
          "crm-btn-sm crm-input-text flex w-full items-center justify-between border border-slate-200 bg-white text-left outline-none transition-colors hover:border-slate-300 focus:border-violet-500 focus:ring-1 focus:ring-violet-500 dark:border-slate-800 dark:bg-slate-900/50 dark:hover:border-slate-700 min-h-[42px]",
          hasError
            ? "border-rose-400 bg-rose-50/60 focus:border-rose-500 focus:ring-rose-500 dark:border-rose-500/70 dark:bg-rose-500/10"
            : "",
        )}
      >
        <span className={hasSelection || valueProvinces.length > 0 ? "break-anywhere text-slate-900 dark:text-white" : "crm-field-note"}>
          {formatSelected()}
        </span>
        <span className="ml-2 flex shrink-0 items-center gap-1">
          {hasSelectionValue ? (
            <button
              type="button"
              onClick={handleClearCoverage}
              aria-label="清除覆盖地市"
              title="清除覆盖地市"
              className="flex h-5 w-5 items-center justify-center rounded-full text-slate-400 transition-colors hover:bg-slate-100 hover:text-slate-600 dark:hover:bg-slate-800 dark:hover:text-slate-200"
            >
              <X className="h-3.5 w-3.5" />
            </button>
          ) : null}
          <ChevronDown className={cn("h-4 w-4 shrink-0 text-slate-400 transition-transform", open ? "rotate-180" : "")} />
        </span>
      </button>

      {open ? (
        <div
          ref={panelRef}
          className="absolute left-0 top-full z-50 mt-2 w-[30rem] max-w-[calc(100vw-2rem)] overflow-hidden rounded-2xl border border-slate-200 bg-white shadow-2xl dark:border-slate-800 dark:bg-slate-900"
        >
          <div className="flex max-h-80">
            <div className="w-1/2 space-y-1 overflow-y-auto border-r border-slate-100 p-2 dark:border-slate-800">
              <p className="px-3 pb-1 text-xs font-semibold text-slate-400">省份（可多选）</p>
              {provinceOptions.map((option) => {
                const isSelected = option.value in selection;
                return (
                  <button
                    key={option.value}
                    type="button"
                    onClick={() => toggleProvince(option.value)}
                    className={cn(
                      "flex w-full items-center justify-between rounded-lg px-3 py-2 text-left text-sm transition-colors",
                      activeProvince === option.value
                        ? "bg-violet-500/10 text-violet-700 dark:text-violet-200"
                        : "text-slate-700 hover:bg-slate-100 dark:text-slate-200 dark:hover:bg-slate-800",
                    )}
                  >
                    <span className="flex items-center gap-2">
                      <span className={cn(
                        "flex h-4 w-4 items-center justify-center rounded border",
                        isSelected ? "border-violet-600 bg-violet-600 text-white" : "border-slate-300 dark:border-slate-600",
                      )}>
                        {isSelected ? <Check className="h-3 w-3" /> : null}
                      </span>
                      <span className="break-anywhere">{option.label || option.value}</span>
                    </span>
                    {(selection[option.value]?.length ?? 0) > 0 ? (
                      <span className="crm-field-note ml-2 shrink-0">{selection[option.value].length}城</span>
                    ) : null}
                  </button>
                );
              })}
            </div>
            <div className="w-1/2 space-y-1 overflow-y-auto p-2">
              <p className="px-3 pb-1 text-xs font-semibold text-slate-400">市（可多选）</p>
              {loadingKeys[activeProvince] ? (
                <div className="px-3 py-6 text-center text-sm text-slate-400">加载中…</div>
              ) : !activeProvince ? (
                <div className="px-3 py-6 text-center text-sm text-slate-400">请先选择省份</div>
              ) : (cityCache[activeProvince] ?? []).length === 0 ? (
                <div className="px-3 py-6 text-center text-sm text-slate-400">暂无可筛选城市</div>
              ) : (
                (cityCache[activeProvince] ?? []).map((option) => {
                  const isSelected = (selection[activeProvince] ?? []).includes(option.value);
                  return (
                    <button
                      key={option.value}
                      type="button"
                      onClick={() => toggleCity(option.value)}
                      className={cn(
                        "flex w-full items-center justify-between rounded-lg px-3 py-2 text-left text-sm transition-colors",
                        isSelected
                          ? "bg-violet-600 text-white"
                          : "text-slate-700 hover:bg-slate-100 dark:text-slate-200 dark:hover:bg-slate-800",
                      )}
                    >
                      <span className="break-anywhere">{option.label || option.value}</span>
                      {isSelected ? <Check className="h-4 w-4 shrink-0" /> : null}
                    </button>
                  );
                })
              )}
            </div>
          </div>
        </div>
      ) : null}
    </div>
  );
}

function ExpansionExportFilterModal({
  activeTab,
  initialFilters,
  exporting,
  exportError,
  officeOptions,
  industryOptions,
  provinceOptions,
  certificationLevelOptions,
  channelAttributeOptions,
  relatedProjectStageOptions,
  isOptions,
  onClose,
  onConfirm,
}: {
  activeTab: ExpansionTab;
  initialFilters: ExpansionExportFilters;
  exporting: boolean;
  exportError: string;
  officeOptions: ExpansionDictOption[];
  industryOptions: ExpansionDictOption[];
  provinceOptions: ExpansionDictOption[];
  certificationLevelOptions: ExpansionDictOption[];
  channelAttributeOptions: ExpansionDictOption[];
  relatedProjectStageOptions: ExpansionDictOption[];
  isOptions: ExpansionDictOption[];
  onClose: () => void;
  onConfirm: (filters: ExpansionExportFilters) => void;
}) {
  const normalizedInitialFilters = applyDefaultRelatedProjectStageFilters(initialFilters, relatedProjectStageOptions);
  const [draftFilters, setDraftFilters] = useState<ExpansionExportFilters>(normalizedInitialFilters);
  const isSalesTab = activeTab === "sales";
  const isCrmTab = activeTab === "crm";
  const selectedSalesFields = resolveSelectedExpansionFields(draftFilters.selectedSalesFields, defaultSalesExportFields);
  const selectedChannelFields = resolveSelectedExpansionFields(draftFilters.selectedChannelFields, defaultChannelExportFields);
  const selectedCrmFields = resolveSelectedExpansionFields(draftFilters.selectedCrmFields, defaultCrmExportFields);
  const crmExportColumns = buildCrmExportColumns(officeOptions);
  const activeFieldOptions = isSalesTab ? salesExportColumns : isCrmTab ? crmExportColumns : buildChannelExportColumns(isOptions);
  const selectedFieldKeys = isSalesTab ? selectedSalesFields : isCrmTab ? selectedCrmFields : selectedChannelFields;
  const defaultRelatedProjectStageCodes = getDefaultRelatedProjectStageCodes(relatedProjectStageOptions);
  const relatedProjectStageFilterOptions = relatedProjectStageOptions
    .map((option) => {
      const value = getDictOptionValue(option);
      const label = getDictOptionLabel(option);
      return value && label ? { value, label } : null;
    })
    .filter((option): option is { value: string; label: string } => Boolean(option));
  const selectedRelatedProjectStageCodes = normalizeMultiSelectValues(draftFilters.relatedProjectStageCodes);

  useEffect(() => {
    setDraftFilters(applyDefaultRelatedProjectStageFilters(initialFilters, relatedProjectStageOptions));
  }, [initialFilters, relatedProjectStageOptions]);

  const hasDraftFilters = Boolean(
    draftFilters.keyword
      || draftFilters.intent
      || draftFilters.officeName
      || draftFilters.industry
      || draftFilters.employmentStatus
      || draftFilters.province
      || draftFilters.certificationLevel
      || draftFilters.channelIndustry
      || draftFilters.channelAttribute
      || draftFilters.establishedStartDate
      || draftFilters.establishedEndDate
      || draftFilters.hasRelatedProject,
  ) || !areSameStringSets(selectedRelatedProjectStageCodes, defaultRelatedProjectStageCodes) || (isSalesTab
    ? JSON.stringify(selectedSalesFields) !== JSON.stringify(defaultSalesExportFields)
    : isCrmTab
      ? JSON.stringify(selectedCrmFields) !== JSON.stringify(defaultCrmExportFields)
      : JSON.stringify(selectedChannelFields) !== JSON.stringify(defaultChannelExportFields));
  const hasSelectedFields = selectedFieldKeys.length > 0;
  const toggleField = (fieldKey: string) => {
    if (isSalesTab) {
      setDraftFilters((current) => {
        const currentFields = resolveSelectedExpansionFields(current.selectedSalesFields, defaultSalesExportFields);
        const nextFields = currentFields.includes(fieldKey as SalesExportFieldKey)
          ? currentFields.filter((item) => item !== fieldKey)
          : [...currentFields, fieldKey as SalesExportFieldKey];
        return { ...current, selectedSalesFields: nextFields };
      });
      return;
    }
    if (isCrmTab) {
      setDraftFilters((current) => {
        const currentFields = resolveSelectedExpansionFields(current.selectedCrmFields, defaultCrmExportFields);
        const nextFields = currentFields.includes(fieldKey as CrmExportFieldKey)
          ? currentFields.filter((item) => item !== fieldKey)
          : [...currentFields, fieldKey as CrmExportFieldKey];
        return { ...current, selectedCrmFields: nextFields };
      });
      return;
    }
    setDraftFilters((current) => {
      const currentFields = resolveSelectedExpansionFields(current.selectedChannelFields, defaultChannelExportFields);
      const nextFields = currentFields.includes(fieldKey as ChannelExportFieldKey)
        ? currentFields.filter((item) => item !== fieldKey)
        : [...currentFields, fieldKey as ChannelExportFieldKey];
      return { ...current, selectedChannelFields: nextFields };
    });
  };
  const handleRelatedProjectStageToggle = (stageCode: string) => {
    setDraftFilters((current) => {
      const currentStageCodes = normalizeMultiSelectValues(current.relatedProjectStageCodes);
      const nextStageCodeSet = currentStageCodes.includes(stageCode)
        ? new Set(currentStageCodes.filter((value) => value !== stageCode))
        : new Set([...currentStageCodes, stageCode]);
      const orderedStageCodes = relatedProjectStageFilterOptions
        .map((option) => option.value)
        .filter((value) => nextStageCodeSet.has(value));
      return { ...current, relatedProjectStageCodes: orderedStageCodes };
    });
  };
  const handleFilterChange = (key: keyof ExpansionExportFilters, value: string) => {
    setDraftFilters((current) => ({ ...current, [key]: value }));
  };
  const renderOption = (option: ExpansionDictOption) => {
    const value = option.label || option.value || "";
    return value ? <option key={value} value={value}>{value}</option> : null;
  };
  const toSearchableOptions = (options: ExpansionDictOption[], allLabel: string) => [
    { value: "", label: allLabel },
    ...options
      .map((option) => {
        const value = option.label || option.value || "";
        return value ? { value, label: value } : null;
      })
      .filter((option): option is { value: string; label: string } => Boolean(option)),
  ];

  return (
    <ModalShell
      title={`导出${isSalesTab ? "销售人员拓展" : isCrmTab ? "CRM拓展" : "渠道拓展"}记录`}
      subtitle="选择条件后导出 Excel；不填条件则导出全部可见权限范围内的数据。"
      onClose={onClose}
      footer={(
        <div className="flex flex-col-reverse gap-3 sm:flex-row sm:justify-between">
          <button
            type="button"
            onClick={() => setDraftFilters((current) => ({
              ...applyDefaultRelatedProjectStageFilters({}, relatedProjectStageOptions),
              selectedSalesFields: resolveSelectedExpansionFields(current.selectedSalesFields, defaultSalesExportFields),
              selectedChannelFields: resolveSelectedExpansionFields(current.selectedChannelFields, defaultChannelExportFields),
              selectedCrmFields: resolveSelectedExpansionFields(current.selectedCrmFields, defaultCrmExportFields),
            }))}
            disabled={!hasDraftFilters}
            className="crm-btn crm-btn-secondary disabled:cursor-not-allowed disabled:opacity-60"
          >
            清空条件
          </button>
          <button
            type="button"
            onClick={() => onConfirm(draftFilters)}
            disabled={exporting || !hasSelectedFields}
            className="crm-btn crm-btn-primary disabled:cursor-not-allowed disabled:opacity-60"
          >
            {exporting ? "导出中..." : "确认导出"}
          </button>
        </div>
      )}
    >
      <div className="grid grid-cols-1 gap-3 sm:grid-cols-2">
        <label className="space-y-1.5 sm:col-span-2">
          <span className="text-sm font-medium text-slate-700 dark:text-slate-300">关键词</span>
          <input
            value={draftFilters.keyword ?? ""}
            onChange={(event) => handleFilterChange("keyword", event.target.value)}
            placeholder={isSalesTab ? "搜索姓名、工号、电话、行业、项目" : isCrmTab ? "搜索最终用户、进货商、对接人、联系人、跟进记录" : "搜索渠道、联系人、地区、项目"}
            className="crm-input-box crm-input-text w-full border border-slate-200 bg-white outline-none focus:border-violet-500 focus:ring-1 focus:ring-violet-500 dark:border-slate-800 dark:bg-slate-900/50"
          />
        </label>
        {!isCrmTab ? (
          <>
            <label className="space-y-1.5">
              <span className="text-sm font-medium text-slate-700 dark:text-slate-300">合作意向</span>
              <AdaptiveSelect
                value={draftFilters.intent ?? ""}
                options={[
                  { value: "", label: "全部合作意向" },
                  { value: "高", label: "高意向" },
                  { value: "中", label: "中意向" },
                  { value: "低", label: "低意向" },
                ]}
                placeholder="全部合作意向"
                sheetTitle="选择合作意向"
                className="crm-input-box crm-input-text w-full border border-slate-200 bg-white outline-none focus:border-violet-500 focus:ring-1 focus:ring-violet-500 dark:border-slate-800 dark:bg-slate-900/50"
                onChange={(value) => handleFilterChange("intent", value)}
              />
            </label>
            <label className="space-y-1.5">
              <span className="text-sm font-medium text-slate-700 dark:text-slate-300">关联项目</span>
              <AdaptiveSelect
                value={draftFilters.hasRelatedProject ?? ""}
                options={[
                  { value: "", label: "全部" },
                  { value: "yes", label: "有关联项目" },
                  { value: "no", label: "无关联项目" },
                ]}
                placeholder="全部"
                sheetTitle="选择关联项目"
                className="crm-input-box crm-input-text w-full border border-slate-200 bg-white outline-none focus:border-violet-500 focus:ring-1 focus:ring-violet-500 dark:border-slate-800 dark:bg-slate-900/50"
                onChange={(value) => handleFilterChange("hasRelatedProject", value)}
              />
            </label>
            <div className="space-y-3 rounded-2xl border border-slate-200 bg-slate-50 p-4 dark:border-slate-800 dark:bg-slate-900/40 sm:col-span-2">
              <div className="flex flex-col gap-2 sm:flex-row sm:items-center sm:justify-between">
                <div>
                  <p className="text-sm font-medium text-slate-700 dark:text-slate-300">关联项目阶段</p>
                  <p className="text-xs text-slate-500 dark:text-slate-400">多选，默认排除已丢单/已放弃阶段。</p>
                </div>
                {relatedProjectStageFilterOptions.length > 0 ? (
                  <div className="flex flex-wrap gap-2">
                    <button
                      type="button"
                      onClick={() => setDraftFilters((current) => ({ ...current, relatedProjectStageCodes: defaultRelatedProjectStageCodes }))}
                      className="rounded-full border border-slate-200 px-3 py-1 text-xs font-medium text-slate-600 transition-colors hover:bg-white dark:border-slate-700 dark:text-slate-300 dark:hover:bg-slate-800"
                    >
                      恢复默认
                    </button>
                    <button
                      type="button"
                      onClick={() => setDraftFilters((current) => ({ ...current, relatedProjectStageCodes: relatedProjectStageFilterOptions.map((option) => option.value) }))}
                      className="rounded-full border border-slate-200 px-3 py-1 text-xs font-medium text-slate-600 transition-colors hover:bg-white dark:border-slate-700 dark:text-slate-300 dark:hover:bg-slate-800"
                    >
                      全选阶段
                    </button>
                    <button
                      type="button"
                      onClick={() => setDraftFilters((current) => ({ ...current, relatedProjectStageCodes: [] }))}
                      className="rounded-full border border-slate-200 px-3 py-1 text-xs font-medium text-slate-600 transition-colors hover:bg-white dark:border-slate-700 dark:text-slate-300 dark:hover:bg-slate-800"
                    >
                      全部取消
                    </button>
                  </div>
                ) : null}
              </div>
              {relatedProjectStageFilterOptions.length > 0 ? (
                <div className="grid grid-cols-1 gap-2 sm:grid-cols-2">
                  {relatedProjectStageFilterOptions.map((option) => {
                    const checked = selectedRelatedProjectStageCodes.includes(option.value);
                    return (
                      <label key={option.value} className={cn(
                        "flex items-center gap-3 rounded-xl border px-3 py-2 text-sm transition-colors",
                        checked
                          ? "border-violet-200 bg-violet-50 text-violet-700 dark:border-violet-500/30 dark:bg-violet-500/10 dark:text-violet-300"
                          : "border-slate-200 bg-white text-slate-600 dark:border-slate-800 dark:bg-slate-900 dark:text-slate-300",
                      )}>
                        <input
                          type="checkbox"
                          checked={checked}
                          onChange={() => handleRelatedProjectStageToggle(option.value)}
                          className="h-4 w-4 rounded border-slate-300 text-violet-600 focus:ring-violet-500"
                        />
                        <span>{option.label}</span>
                      </label>
                    );
                  })}
                </div>
              ) : (
                <p className="text-xs text-slate-500 dark:text-slate-400">未加载到阶段字典，导出时不会按关联项目阶段过滤。</p>
              )}
            </div>
          </>
        ) : null}
        <div className="space-y-3 rounded-2xl border border-slate-200 bg-slate-50 p-4 dark:border-slate-800 dark:bg-slate-900/40 sm:col-span-2">
          <div className="flex flex-col gap-2 sm:flex-row sm:items-center sm:justify-between">
            <div>
              <p className="text-sm font-medium text-slate-700 dark:text-slate-300">导出字段</p>
              <p className="text-xs text-slate-500 dark:text-slate-400">默认已按模板字段勾选，可取消不需要导出的字段。</p>
            </div>
            <div className="flex flex-wrap gap-2">
              <button
                type="button"
                onClick={() => setDraftFilters((current) => ({
                  ...current,
                  selectedSalesFields: isSalesTab ? salesExportColumns.map((column) => column.key) : current.selectedSalesFields,
                  selectedChannelFields: isSalesTab ? current.selectedChannelFields : isCrmTab ? current.selectedChannelFields : buildChannelExportColumns(isOptions).map((column) => column.key),
                  selectedCrmFields: isCrmTab ? crmExportColumns.map((column) => column.key) : current.selectedCrmFields,
                }))}
                className="rounded-full border border-slate-200 px-3 py-1 text-xs font-medium text-slate-600 transition-colors hover:bg-white dark:border-slate-700 dark:text-slate-300 dark:hover:bg-slate-800"
              >
                全选字段
              </button>
              <button
                type="button"
                onClick={() => setDraftFilters((current) => ({
                  ...current,
                  selectedSalesFields: isSalesTab ? defaultSalesExportFields : current.selectedSalesFields,
                  selectedChannelFields: isSalesTab ? current.selectedChannelFields : isCrmTab ? current.selectedChannelFields : defaultChannelExportFields,
                  selectedCrmFields: isCrmTab ? defaultCrmExportFields : current.selectedCrmFields,
                }))}
                className="rounded-full border border-slate-200 px-3 py-1 text-xs font-medium text-slate-600 transition-colors hover:bg-white dark:border-slate-700 dark:text-slate-300 dark:hover:bg-slate-800"
              >
                恢复模板默认
              </button>
            </div>
          </div>
          <div className="grid grid-cols-1 gap-2 sm:grid-cols-2">
            {activeFieldOptions.map((field) => {
              const checked = selectedFieldKeys.includes(field.key);
              return (
                <label key={field.key} className={cn(
                  "flex items-center gap-3 rounded-xl border px-3 py-2 text-sm transition-colors",
                  checked
                    ? "border-violet-200 bg-violet-50 text-violet-700 dark:border-violet-500/30 dark:bg-violet-500/10 dark:text-violet-300"
                    : "border-slate-200 bg-white text-slate-600 dark:border-slate-800 dark:bg-slate-900 dark:text-slate-300",
                )}>
                  <input
                    type="checkbox"
                    checked={checked}
                    onChange={() => toggleField(field.key)}
                    className="h-4 w-4 rounded border-slate-300 text-violet-600 focus:ring-violet-500"
                  />
                  <span>{field.label}</span>
                </label>
              );
            })}
          </div>
          {!hasSelectedFields ? <p className="text-xs text-rose-500">请至少保留一个导出字段</p> : null}
        </div>

        {isSalesTab ? (
          <>
            <label className="space-y-1.5">
              <span className="text-sm font-medium text-slate-700 dark:text-slate-300">代表处 / 办事处</span>
              <AdaptiveSelect
                value={draftFilters.officeName ?? ""}
                options={toSearchableOptions(officeOptions, "全部代表处 / 办事处")}
                placeholder="全部代表处 / 办事处"
                sheetTitle="选择代表处 / 办事处"
                searchable
                searchPlaceholder="搜索代表处 / 办事处"
                className="crm-input-box crm-input-text w-full border border-slate-200 bg-white outline-none focus:border-violet-500 focus:ring-1 focus:ring-violet-500 dark:border-slate-800 dark:bg-slate-900/50"
                onChange={(value) => handleFilterChange("officeName", value)}
              />
            </label>
            <label className="space-y-1.5">
              <span className="text-sm font-medium text-slate-700 dark:text-slate-300">所属行业</span>
              <AdaptiveSelect
                value={draftFilters.industry ?? ""}
                options={toSearchableOptions(industryOptions, "全部行业")}
                placeholder="全部行业"
                sheetTitle="选择所属行业"
                className="crm-input-box crm-input-text w-full border border-slate-200 bg-white outline-none focus:border-violet-500 focus:ring-1 focus:ring-violet-500 dark:border-slate-800 dark:bg-slate-900/50"
                onChange={(value) => handleFilterChange("industry", value)}
              />
            </label>
            <label className="space-y-1.5 sm:col-span-2">
              <span className="text-sm font-medium text-slate-700 dark:text-slate-300">销售是否在职</span>
              <AdaptiveSelect
                value={draftFilters.employmentStatus ?? ""}
                options={[
                  { value: "", label: "全部" },
                  { value: "active", label: "在职" },
                  { value: "inactive", label: "离职" },
                ]}
                placeholder="全部"
                sheetTitle="选择在职状态"
                className="crm-input-box crm-input-text w-full border border-slate-200 bg-white outline-none focus:border-violet-500 focus:ring-1 focus:ring-violet-500 dark:border-slate-800 dark:bg-slate-900/50"
                onChange={(value) => handleFilterChange("employmentStatus", value)}
              />
            </label>
          </>
        ) : isCrmTab ? (
          <>
            <label className="space-y-1.5 sm:col-span-2">
              <span className="text-sm font-medium text-slate-700 dark:text-slate-300">代表处</span>
              <AdaptiveSelect
                value={draftFilters.officeName ?? ""}
                options={toSearchableOptions(officeOptions, "全部代表处")}
                placeholder="全部代表处"
                sheetTitle="选择代表处"
                searchable
                searchPlaceholder="搜索代表处"
                className="crm-input-box crm-input-text w-full border border-slate-200 bg-white outline-none focus:border-violet-500 focus:ring-1 focus:ring-violet-500 dark:border-slate-800 dark:bg-slate-900/50"
                onChange={(value) => handleFilterChange("officeName", value)}
              />
            </label>
          </>
        ) : (
          <>
            <label className="space-y-1.5">
              <span className="text-sm font-medium text-slate-700 dark:text-slate-300">省份</span>
              <AdaptiveSelect
                value={draftFilters.province ?? ""}
                options={toSearchableOptions(provinceOptions, "全部省份")}
                placeholder="全部省份"
                sheetTitle="选择省份"
                searchable
                searchPlaceholder="搜索省份"
                className="crm-input-box crm-input-text w-full border border-slate-200 bg-white outline-none focus:border-violet-500 focus:ring-1 focus:ring-violet-500 dark:border-slate-800 dark:bg-slate-900/50"
                onChange={(value) => handleFilterChange("province", value)}
              />
            </label>
            <label className="space-y-1.5">
              <span className="text-sm font-medium text-slate-700 dark:text-slate-300">汇智内部认证级别</span>
              <AdaptiveSelect
                value={draftFilters.certificationLevel ?? ""}
                options={toSearchableOptions(certificationLevelOptions, "全部汇智内部认证级别")}
                placeholder="全部汇智内部认证级别"
                sheetTitle="选择汇智内部认证级别"
                className="crm-input-box crm-input-text w-full border border-slate-200 bg-white outline-none focus:border-violet-500 focus:ring-1 focus:ring-violet-500 dark:border-slate-800 dark:bg-slate-900/50"
                onChange={(value) => handleFilterChange("certificationLevel", value)}
              />
            </label>
            <label className="space-y-1.5">
              <span className="text-sm font-medium text-slate-700 dark:text-slate-300">聚焦行业</span>
              <AdaptiveSelect
                value={draftFilters.channelIndustry ?? ""}
                options={toSearchableOptions(industryOptions, "全部行业")}
                placeholder="全部行业"
                sheetTitle="选择聚焦行业"
                className="crm-input-box crm-input-text w-full border border-slate-200 bg-white outline-none focus:border-violet-500 focus:ring-1 focus:ring-violet-500 dark:border-slate-800 dark:bg-slate-900/50"
                onChange={(value) => handleFilterChange("channelIndustry", value)}
              />
            </label>
            <label className="space-y-1.5">
              <span className="text-sm font-medium text-slate-700 dark:text-slate-300">渠道属性</span>
              <AdaptiveSelect
                value={draftFilters.channelAttribute ?? ""}
                options={toSearchableOptions(channelAttributeOptions, "全部渠道属性")}
                placeholder="全部渠道属性"
                sheetTitle="选择渠道属性"
                className="crm-input-box crm-input-text w-full border border-slate-200 bg-white outline-none focus:border-violet-500 focus:ring-1 focus:ring-violet-500 dark:border-slate-800 dark:bg-slate-900/50"
                onChange={(value) => handleFilterChange("channelAttribute", value)}
              />
            </label>
            <label className="space-y-1.5">
              <span className="text-sm font-medium text-slate-700 dark:text-slate-300">建立联系开始日期</span>
              <input
                type="date"
                value={draftFilters.establishedStartDate ?? ""}
                onChange={(event) => handleFilterChange("establishedStartDate", event.target.value)}
                className="crm-input-box crm-input-text w-full border border-slate-200 bg-white outline-none focus:border-violet-500 focus:ring-1 focus:ring-violet-500 dark:border-slate-800 dark:bg-slate-900/50"
              />
            </label>
            <label className="space-y-1.5">
              <span className="text-sm font-medium text-slate-700 dark:text-slate-300">建立联系结束日期</span>
              <input
                type="date"
                value={draftFilters.establishedEndDate ?? ""}
                onChange={(event) => handleFilterChange("establishedEndDate", event.target.value)}
                className="crm-input-box crm-input-text w-full border border-slate-200 bg-white outline-none focus:border-violet-500 focus:ring-1 focus:ring-violet-500 dark:border-slate-800 dark:bg-slate-900/50"
              />
            </label>
          </>
        )}
      </div>
      {exportError ? <div className="crm-alert crm-alert-error mt-4">{exportError}</div> : null}
    </ModalShell>
  );
}

export default function Expansion() {
  const currentUserId = getStoredCurrentUserId();
  const location = useLocation();
  const isMobileViewport = useIsMobileViewport();
  const isWecomBrowser = useIsWecomBrowser();
  const disableMobileMotion = isMobileViewport || isWecomBrowser;
  const [activeTab, setActiveTab] = useState<ExpansionTab>("sales");
  const [selectedItem, setSelectedItem] = useState<ExpansionItem | null>(null);
  const [keyword, setKeyword] = useState("");
  const [salesData, setSalesData] = useState<SalesExpansionItem[]>([]);
  const [channelData, setChannelData] = useState<ChannelExpansionItem[]>([]);
  const [crmData, setCrmData] = useState<CrmExpansionItem[]>([]);
  const [supplierChannelOptions, setSupplierChannelOptions] = useState<ChannelExpansionItem[]>([]);
  const [supplierSalesOptions, setSupplierSalesOptions] = useState<SalesExpansionItem[]>([]);
  const [supplierChannelQuery, setSupplierChannelQuery] = useState("");
  const [supplierSalesQuery, setSupplierSalesQuery] = useState("");
  const [loadingSupplierChannelOptions, setLoadingSupplierChannelOptions] = useState(false);
  const [loadingSupplierSalesOptions, setLoadingSupplierSalesOptions] = useState(false);
  const [supplierRefreshTick, setSupplierRefreshTick] = useState(0);
  const [visibleItemCount, setVisibleItemCount] = useState(LIST_PAGE_SIZE);
  const loadMoreRef = useRef<HTMLDivElement | null>(null);
  const loadingMoreRef = useRef(false);
  const loadedTabKeysRef = useRef(new Set<string>());
  const [loadingMore, setLoadingMore] = useState(false);
  const [loadMoreError, setLoadMoreError] = useState("");
  const [officeOptions, setOfficeOptions] = useState<ExpansionDictOption[]>([]);
  const [industryOptions, setIndustryOptions] = useState<ExpansionDictOption[]>([]);
  const [provinceOptions, setProvinceOptions] = useState<ExpansionDictOption[]>([]);
  const [certificationLevelOptions, setCertificationLevelOptions] = useState<ExpansionDictOption[]>([]);
  const [createCityOptions, setCreateCityOptions] = useState<ExpansionDictOption[]>([]);
  const [editCityOptions, setEditCityOptions] = useState<ExpansionDictOption[]>([]);
  const [createCoverageCityOptions, setCreateCoverageCityOptions] = useState<ExpansionDictOption[]>([]);
  const [editCoverageCityOptions, setEditCoverageCityOptions] = useState<ExpansionDictOption[]>([]);
  const [channelAttributeOptions, setChannelAttributeOptions] = useState<ExpansionDictOption[]>([]);
  const [internalAttributeOptions, setInternalAttributeOptions] = useState<ExpansionDictOption[]>([]);
  const [extensionTypeOptions, setExtensionTypeOptions] = useState<ExpansionDictOption[]>([]);
  const [onlineStatusOptions, setOnlineStatusOptions] = useState<ExpansionDictOption[]>([]);
  const [isOptions, setIsOptions] = useState<ExpansionDictOption[]>([]);
  const [relatedProjectStageOptions, setRelatedProjectStageOptions] = useState<ExpansionDictOption[]>([]);
  const [nextChannelCode, setNextChannelCode] = useState("");
  const channelOtherOptionValue = channelAttributeOptions.find(isOtherOption)?.value ?? "";
  const [refreshTick, setRefreshTick] = useState(0);

  const [createOpen, setCreateOpen] = useState(false);
  const [editOpen, setEditOpen] = useState(false);
  const [submitting, setSubmitting] = useState(false);
  const [exporting, setExporting] = useState(false);
  const [exportFilterOpen, setExportFilterOpen] = useState(false);
  const [exportFilters, setExportFilters] = useState<ExpansionExportFilters>(() => loadExpansionExportPreferences());
  const [permissionCodes, setPermissionCodes] = useState<string[] | null>(null);
  const [salesDuplicateChecking, setSalesDuplicateChecking] = useState(false);
  const [channelDuplicateChecking, setChannelDuplicateChecking] = useState(false);
  const [createError, setCreateError] = useState("");
  const [editError, setEditError] = useState("");
  const [exportError, setExportError] = useState("");
  const [salesDuplicateMessage, setSalesDuplicateMessage] = useState("");
  const [channelDuplicateMessage, setChannelDuplicateMessage] = useState("");
  const [crmDuplicateMessage, setCrmDuplicateMessage] = useState("");
  const [salesCreateFieldErrors, setSalesCreateFieldErrors] = useState<Partial<Record<SalesCreateField, string>>>({});
  const [salesEditFieldErrors, setSalesEditFieldErrors] = useState<Partial<Record<SalesCreateField, string>>>({});
  const [channelCreateFieldErrors, setChannelCreateFieldErrors] = useState<Partial<Record<ChannelField, string>>>({});
  const [channelEditFieldErrors, setChannelEditFieldErrors] = useState<Partial<Record<ChannelField, string>>>({});
  const [invalidCreateChannelContactRows, setInvalidCreateChannelContactRows] = useState<number[]>([]);
  const [invalidEditChannelContactRows, setInvalidEditChannelContactRows] = useState<number[]>([]);
  const [salesDetailTab, setSalesDetailTab] = useState<"projects" | "followups">("projects");
  const [channelDetailTab, setChannelDetailTab] = useState<"projects" | "contacts" | "followups">("projects");
  const [crmDetailTab, setCrmDetailTab] = useState<"contacts" | "followups">("contacts");
  const canEditSelectedItem = Boolean(selectedItem && currentUserId !== undefined && selectedItem.ownerUserId === currentUserId);

  const [salesForm, setSalesForm] = useState<CreateSalesExpansionPayload>(defaultSalesForm);
  const [channelForm, setChannelForm] = useState<CreateChannelExpansionPayload>(defaultChannelForm);
  const [crmForm, setCrmForm] = useState<CreateCrmExpansionPayload>({
    endUser: "",
    officeName: "",
    industryAttr: [],
    extensionType: [],
    purchaseDate: "",
    warrantyExpiry: "",
    onlineStatus: "",
    contacts: [createEmptyCrmContact()],
    supplierId: 0,
    supplierName: "",
    h3cContactId: 0,
    h3cContactName: "",
    hasExpansionOpportunity: "",
    softwarePoints: undefined,
    expansionTime: "",
    expansionScale: "",
    hasMaintenanceOpportunity: "",
  });
  const [editSalesForm, setEditSalesForm] = useState<CreateSalesExpansionPayload>(defaultSalesForm);
  const [editChannelForm, setEditChannelForm] = useState<CreateChannelExpansionPayload>(defaultChannelForm);
  const [editCrmForm, setEditCrmForm] = useState<CreateCrmExpansionPayload>({
    endUser: "",
    officeName: "",
    industryAttr: [],
    extensionType: [],
    purchaseDate: "",
    warrantyExpiry: "",
    onlineStatus: "",
    contacts: [createEmptyCrmContact()],
    supplierId: 0,
    supplierName: "",
    h3cContactId: 0,
    h3cContactName: "",
    hasExpansionOpportunity: "",
    softwarePoints: undefined,
    expansionTime: "",
    expansionScale: "",
    hasMaintenanceOpportunity: "",
  });
  const [crmFieldErrors, setCrmFieldErrors] = useState<Partial<Record<keyof CreateCrmExpansionPayload, string>>>({});
  const [editCrmFieldErrors, setEditCrmFieldErrors] = useState<Partial<Record<keyof CreateCrmExpansionPayload, string>>>({});
  const [invalidCreateCrmContactRows, setInvalidCreateCrmContactRows] = useState<number[]>([]);
  const [invalidEditCrmContactRows, setInvalidEditCrmContactRows] = useState<number[]>([]);
  const [moveOpen, setMoveOpen] = useState(false);
  const [moveSubmitting, setMoveSubmitting] = useState(false);
  const [moveError, setMoveError] = useState("");
  const [moveChannelForm, setMoveChannelForm] = useState<MoveChannelToCrmPayload>(defaultMoveChannelForm);
  const [moveCrmForm, setMoveCrmForm] = useState<MoveCrmToChannelPayload>(defaultMoveCrmForm);
  const [moveChannelFieldErrors, setMoveChannelFieldErrors] = useState<Partial<Record<keyof MoveChannelToCrmPayload, string>>>({});
  const [moveCrmFieldErrors, setMoveCrmFieldErrors] = useState<Partial<Record<keyof MoveCrmToChannelPayload, string>>>({});
  const [invalidMoveCrmContactRows, setInvalidMoveCrmContactRows] = useState<number[]>([]);
  const [invalidMoveChannelContactRows, setInvalidMoveChannelContactRows] = useState<number[]>([]);
  const [moveCityOptions, setMoveCityOptions] = useState<ExpansionDictOption[]>([]);
  const hasForegroundModal = createOpen || editOpen || exportFilterOpen || moveOpen;
  const canCreateExpansion = permissionCodes !== null && canUsePermission(EXPANSION_CREATE_PERMISSION, permissionCodes);

  const loadMeta = useCallback(async () => {
    const data = await getExpansionMeta();
    setOfficeOptions(data.officeOptions ?? []);
    setIndustryOptions(data.industryOptions ?? []);
    setProvinceOptions(data.provinceOptions ?? []);
    setCertificationLevelOptions(data.certificationLevelOptions ?? []);
    setChannelAttributeOptions(data.channelAttributeOptions ?? []);
    setInternalAttributeOptions(data.internalAttributeOptions ?? []);
    setExtensionTypeOptions(data.extensionTypeOptions ?? []);
    setOnlineStatusOptions(data.onlineStatusOptions ?? []);
    setIsOptions(data.isOptions ?? []);
    setNextChannelCode(data.nextChannelCode ?? "");
    return data;
  }, []);

  useEffect(() => {
    let cancelled = false;
    const timer = window.setTimeout(async () => {
      setLoadingSupplierChannelOptions(true);
      try {
        const data = await getOpportunityExpansionOptions({
          keyword: supplierChannelQuery || undefined,
          limit: SUPPLIER_SEARCH_LIMIT,
        });
        if (!cancelled) {
          setSupplierChannelOptions(data.channelItems ?? []);
        }
      } catch {
        if (!cancelled) {
          setSupplierChannelOptions([]);
        }
      } finally {
        if (!cancelled) {
          setLoadingSupplierChannelOptions(false);
        }
      }
    }, SUPPLIER_SEARCH_DEBOUNCE_MS);

    return () => {
      cancelled = true;
      window.clearTimeout(timer);
    };
  }, [supplierChannelQuery, supplierRefreshTick]);

  useEffect(() => {
    let cancelled = false;
    const timer = window.setTimeout(async () => {
      setLoadingSupplierSalesOptions(true);
      try {
        const data = await getOpportunityExpansionOptions({
          keyword: supplierSalesQuery || undefined,
          limit: SUPPLIER_SEARCH_LIMIT,
        });
        if (!cancelled) {
          setSupplierSalesOptions(data.salesItems ?? []);
        }
      } catch {
        if (!cancelled) {
          setSupplierSalesOptions([]);
        }
      } finally {
        if (!cancelled) {
          setLoadingSupplierSalesOptions(false);
        }
      }
    }, SUPPLIER_SEARCH_DEBOUNCE_MS);

    return () => {
      cancelled = true;
      window.clearTimeout(timer);
    };
  }, [supplierSalesQuery, supplierRefreshTick]);

  useEffect(() => {
    let cancelled = false;

    async function loadPermissions() {
      try {
        const permissions = await listMyPermissions();
        if (!cancelled) {
          setPermissionCodes(
            permissions
              .filter((permission) => permission.status !== 0)
              .map((permission) => permission.code)
              .filter(Boolean),
          );
        }
      } catch {
        if (!cancelled) {
          setPermissionCodes(null);
        }
      }
    }

    void loadPermissions();
    return () => {
      cancelled = true;
    };
  }, []);

  useEffect(() => {
    let cancelled = false;

    async function loadRelatedProjectStageDict() {
      try {
        const data = await getOpportunityMeta();
        if (!cancelled) {
          // 使用全量阶段（含已禁用字典项），保证销售/渠道导出弹窗与默认导出不遗漏相关商机
          setRelatedProjectStageOptions(data.allStageOptions ?? data.stageOptions ?? []);
        }
      } catch {
        if (!cancelled) {
          setRelatedProjectStageOptions([]);
        }
      }
    }

    void loadRelatedProjectStageDict();

    return () => {
      cancelled = true;
    };
  }, []);

  useEffect(() => {
    if (relatedProjectStageOptions.length <= 0) {
      return;
    }
    setExportFilters((current) => (
      current.relatedProjectStageCodes === undefined
        ? applyDefaultRelatedProjectStageFilters(current, relatedProjectStageOptions)
        : current
    ));
  }, [relatedProjectStageOptions]);

  const loadCityOptions = useCallback(async (provinceName?: string, isEdit = false) => {
    const setter = isEdit ? setEditCityOptions : setCreateCityOptions;
    const normalizedProvinceName = provinceName?.trim();
    if (!normalizedProvinceName) {
      setter([]);
      return [];
    }

    try {
      const options = await getExpansionCityOptions(normalizedProvinceName);
      setter(options ?? []);
      return options ?? [];
    } catch {
      setter([]);
      return [];
    }
  }, []);

  const loadCoverageCityOptions = useCallback(async (provinceNames: string[], isEdit = false) => {
    const setter = isEdit ? setEditCoverageCityOptions : setCreateCoverageCityOptions;
    const normalizedProvinces = Array.from(new Set((provinceNames ?? []).map((name) => name?.trim()).filter(Boolean)));
    if (normalizedProvinces.length === 0) {
      setter([]);
      return [];
    }

    try {
      const results = await Promise.all(normalizedProvinces.map((name) => getExpansionCityOptions(name).catch(() => [] as ExpansionDictOption[])));
      const merged: ExpansionDictOption[] = [];
      const seen = new Set<string>();
      for (const options of results) {
        for (const option of options ?? []) {
          const value = option.value ?? "";
          if (!value || seen.has(value)) {
            continue;
          }
          seen.add(value);
          merged.push(option);
        }
      }
      setter(merged);
      return merged;
    } catch {
      setter([]);
      return [];
    }
  }, []);

  useEffect(() => {
    const requestedTab = (location.state as ExpansionLocationState)?.tab;
    if (requestedTab === "sales" || requestedTab === "channel" || requestedTab === "crm") {
      setActiveTab(requestedTab);
    }
  }, [location.state]);

  // 拉取含详情（contacts/相关项目/跟进等）的结果，并替换当前选中项，
  // 确保从任意入口（列表点击、跨页跳转、编辑等）进入详情都能展示完整数据。
  const enrichSelectedItem = useCallback(async (item: ExpansionItem) => {
    if (!item || !item.id) {
      return;
    }
    try {
      if (item.type === "crm") {
        const data = await getCrmExpansionOverview(keyword, true);
        const detailedItem = (data.crmItems ?? []).find((candidate) => candidate.id === item.id);
        if (detailedItem) {
          setSelectedItem((current) => current?.id === detailedItem.id ? detailedItem : current);
        }
        return;
      }
      const data = await getExpansionOverview(keyword, true);
      const detailedItem = item.type === "sales"
        ? (data.salesItems ?? []).find((candidate) => candidate.id === item.id)
        : (data.channelItems ?? []).find((candidate) => candidate.id === item.id);
      if (detailedItem) {
        setSelectedItem((current) => current?.id === detailedItem.id ? detailedItem : current);
      }
    } catch {
      // 详情补齐失败时保留已有数据，不影响展示
    }
  }, [keyword]);

  useEffect(() => {
    const requestedState = location.state as ExpansionLocationState;
    const requestedTab = requestedState?.tab;
    const requestedId = requestedState?.selectedId;
    if (!requestedId) {
      return;
    }
    const selectAndEnrich = (match: ExpansionItem | undefined) => {
      if (!match) {
        return;
      }
      setSelectedItem(match);
      void enrichSelectedItem(match);
    };

    if (requestedTab === "sales") {
      selectAndEnrich(salesData.find((item) => item.id === requestedId));
      return;
    }

    if (requestedTab === "channel") {
      selectAndEnrich(channelData.find((item) => item.id === requestedId));
      return;
    }

    if (requestedTab === "crm") {
      selectAndEnrich(crmData.find((item) => item.id === requestedId));
      return;
    }

    selectAndEnrich(salesData.find((item) => item.id === requestedId) ?? channelData.find((item) => item.id === requestedId) ?? crmData.find((item) => item.id === requestedId) ?? null);
  }, [location.state, salesData, channelData, crmData, enrichSelectedItem]);

  useEffect(() => {
    let cancelled = false;

    async function loadMetaOptions() {
      try {
        const data = await loadMeta();
        if (!cancelled) {
          setOfficeOptions(data.officeOptions ?? []);
          setIndustryOptions(data.industryOptions ?? []);
          setProvinceOptions(data.provinceOptions ?? []);
          setCertificationLevelOptions(data.certificationLevelOptions ?? []);
          setChannelAttributeOptions(data.channelAttributeOptions ?? []);
          setInternalAttributeOptions(data.internalAttributeOptions ?? []);
          setNextChannelCode(data.nextChannelCode ?? "");
        }
      } catch {
        if (!cancelled) {
          setOfficeOptions([]);
          setIndustryOptions([]);
          setProvinceOptions([]);
          setCertificationLevelOptions([]);
          setChannelAttributeOptions([]);
          setInternalAttributeOptions([]);
          setNextChannelCode("");
        }
      }
    }

    void loadMetaOptions();

    return () => {
      cancelled = true;
    };
  }, [loadMeta]);

  useEffect(() => {
    let cancelled = false;
    const loadKey = `${activeTab}:${keyword}:${refreshTick}`;

    async function loadExpansionData() {
      try {
        if (activeTab === "crm") {
          if (!loadedTabKeysRef.current.has(loadKey)) {
            const data = await getCrmExpansionOverview(keyword, false, LIST_PAGE_SIZE + 1);
            if (cancelled) {
              return;
            }
            setCrmData(dedupeExpansionItemsById(data.crmItems ?? []));
            loadedTabKeysRef.current.add(loadKey);
          }
          setSelectedItem(null);
        } else {
          const salesKey = `sales:${keyword}:${refreshTick}`;
          const channelKey = `channel:${keyword}:${refreshTick}`;
          if (!loadedTabKeysRef.current.has(salesKey) && !loadedTabKeysRef.current.has(channelKey)) {
            const data = await getExpansionOverview(keyword, false, LIST_PAGE_SIZE + 1);
            if (cancelled) {
              return;
            }
            setSalesData(dedupeExpansionItemsById(data.salesItems ?? []));
            setChannelData(dedupeExpansionItemsById(data.channelItems ?? []));
            loadedTabKeysRef.current.add(salesKey);
            loadedTabKeysRef.current.add(channelKey);
          }
          setSelectedItem(null);
        }
      } catch {
        if (!cancelled) {
          if (activeTab === "crm") {
            setCrmData([]);
          } else {
            setSalesData([]);
            setChannelData([]);
          }
          setSelectedItem(null);
        }
      }
    }

    void loadExpansionData();

    return () => {
      cancelled = true;
    };
  }, [keyword, refreshTick, activeTab]);

  useEffect(() => {
    setVisibleItemCount(LIST_PAGE_SIZE);
  }, [keyword, activeTab]);

  const activeData = activeTab === "sales" ? salesData : activeTab === "channel" ? channelData : crmData;
  const hasMoreItems = visibleItemCount < activeData.length;

  const supplierChannelSearchOptions: SearchableOption[] = supplierChannelOptions.map((item) => ({
    value: item.id,
    label: item.name || `渠道#${item.id}`,
    keywords: [item.channelCode || "", item.province || "", item.primaryContactName || "", item.primaryContactMobile || ""],
  }));
  const supplierSalesSearchOptions: SearchableOption[] = supplierSalesOptions.map((item) => ({
    value: item.id,
    label: [item.name, item.employeeNo, item.officeName].filter(Boolean).join(" - ") || `负责人#${item.id}`,
    keywords: [item.employeeNo || "", item.officeName || "", item.phone || "", item.title || ""],
  }));

  const loadMoreItems = async () => {
    if (!hasMoreItems || loadingMoreRef.current) {
      return;
    }
    loadingMoreRef.current = true;
    setLoadingMore(true);
    setLoadMoreError("");
    const nextVisibleCount = visibleItemCount + LIST_PAGE_SIZE;
    try {
      if (activeTab === "crm") {
        const data = await getCrmExpansionOverview(keyword, false, nextVisibleCount + 1);
        setCrmData(dedupeExpansionItemsById(data.crmItems ?? []));
        setVisibleItemCount(nextVisibleCount);
      } else {
        const data = await getExpansionOverview(keyword, false, nextVisibleCount + 1);
        setSalesData(dedupeExpansionItemsById(data.salesItems ?? []));
        setChannelData(dedupeExpansionItemsById(data.channelItems ?? []));
        setVisibleItemCount(nextVisibleCount);
      }
    } catch {
      setLoadMoreError("加载更多失败，请重试");
    } finally {
      loadingMoreRef.current = false;
      setLoadingMore(false);
    }
  };

  useEffect(() => {
    if (!hasMoreItems) {
      return;
    }

    const handleScroll = () => {
      const loadMoreElement = loadMoreRef.current;
      if (loadMoreElement && loadMoreElement.getBoundingClientRect().top <= window.innerHeight + 120) {
        void loadMoreItems();
      }
    };

    window.addEventListener("scroll", handleScroll, true);
    return () => window.removeEventListener("scroll", handleScroll, true);
  }, [hasMoreItems, visibleItemCount, activeData.length, keyword, activeTab]);

  const followUpRecords: ExpansionFollowUp[] = selectedItem?.followUps ?? [];

  const handleSelectItem = (item: ExpansionItem) => {
    setSelectedItem(item);
    if (item.type === "crm") {
      setCrmDetailTab("contacts");
    }
    void enrichSelectedItem(item);
  };

  useEffect(() => {
    if (selectedItem?.type === "sales") {
      setSalesDetailTab("projects");
    } else if (selectedItem?.type === "channel") {
      setChannelDetailTab("projects");
    }
  }, [selectedItem]);

  useEffect(() => {
    if (!createOpen || activeTab !== "sales") {
      setSalesDuplicateChecking(false);
      return;
    }

    const normalizedEmployeeNo = salesForm.employeeNo.trim();
    if (!normalizedEmployeeNo) {
      setSalesDuplicateChecking(false);
      setSalesDuplicateMessage("");
      return;
    }

    let cancelled = false;
    const timer = window.setTimeout(async () => {
      setSalesDuplicateChecking(true);
      try {
        const result = await checkSalesExpansionDuplicate(normalizedEmployeeNo);
        if (!cancelled) {
          setSalesDuplicateMessage(result.duplicated ? result.message || "工号重复，请确认该人员是否已存在！" : "");
        }
      } catch {
        if (!cancelled) {
          setSalesDuplicateMessage("");
        }
      } finally {
        if (!cancelled) {
          setSalesDuplicateChecking(false);
        }
      }
    }, 400);

    return () => {
      cancelled = true;
      window.clearTimeout(timer);
    };
  }, [activeTab, createOpen, salesForm.employeeNo]);

  useEffect(() => {
    if (!createOpen || activeTab !== "channel") {
      setChannelDuplicateChecking(false);
      return;
    }

    const normalizedChannelName = channelForm.channelName.trim();
    if (!normalizedChannelName) {
      setChannelDuplicateChecking(false);
      setChannelDuplicateMessage("");
      return;
    }

    let cancelled = false;
    const timer = window.setTimeout(async () => {
      setChannelDuplicateChecking(true);
      try {
        const result = await checkChannelExpansionDuplicate(normalizedChannelName);
        if (!cancelled) {
          setChannelDuplicateMessage(result.duplicated ? result.message || "渠道重复，请确认该渠道是否已存在！" : "");
        }
      } catch {
        if (!cancelled) {
          setChannelDuplicateMessage("");
        }
      } finally {
        if (!cancelled) {
          setChannelDuplicateChecking(false);
        }
      }
    }, 400);

    return () => {
      cancelled = true;
      window.clearTimeout(timer);
    };
  }, [activeTab, channelForm.channelName, createOpen]);

  const handleSalesChange = <K extends keyof CreateSalesExpansionPayload>(key: K, value: CreateSalesExpansionPayload[K]) => {
    setSalesForm((current) => ({ ...current, [key]: value }));
    if (key === "employeeNo") {
      setSalesDuplicateMessage("");
      setSalesDuplicateChecking(false);
    }
    if (key in salesCreateFieldErrors) {
      setSalesCreateFieldErrors((current) => {
        const next = { ...current };
        delete next[key as SalesCreateField];
        return next;
      });
    }
  };

  const handleChannelChange = <K extends keyof CreateChannelExpansionPayload>(key: K, value: CreateChannelExpansionPayload[K]) => {
    setChannelForm((current) => ({ ...current, [key]: value }));
    if (key === "channelName") {
      setChannelDuplicateMessage("");
      setChannelDuplicateChecking(false);
    }
    if (key in channelCreateFieldErrors) {
      setChannelCreateFieldErrors((current) => {
        const next = { ...current };
        delete next[key as ChannelField];
        return next;
      });
    }
  };

  const handleEditSalesChange = <K extends keyof CreateSalesExpansionPayload>(key: K, value: CreateSalesExpansionPayload[K]) => {
    setEditSalesForm((current) => ({ ...current, [key]: value }));
    if (key in salesEditFieldErrors) {
      setSalesEditFieldErrors((current) => {
        const next = { ...current };
        delete next[key as SalesCreateField];
        return next;
      });
    }
  };

  const handleEditChannelChange = <K extends keyof CreateChannelExpansionPayload>(key: K, value: CreateChannelExpansionPayload[K]) => {
    setEditChannelForm((current) => ({ ...current, [key]: value }));
    if (key in channelEditFieldErrors) {
      setChannelEditFieldErrors((current) => {
        const next = { ...current };
        delete next[key as ChannelField];
        return next;
      });
    }
  };

  const handleCrmChange = <K extends keyof CreateCrmExpansionPayload>(key: K, value: CreateCrmExpansionPayload[K]) => {
    setCrmForm((current) => {
      const next = { ...current, [key]: value };
      if (key === "purchaseDate") {
        next.warrantyExpiry = addYearsToDate(String(value ?? ""), 3);
      }
      return next;
    });
    if (key in crmFieldErrors) {
      setCrmFieldErrors((current) => {
        const next = { ...current };
        delete next[key];
        return next;
      });
    }
  };

  const handleEditCrmChange = <K extends keyof CreateCrmExpansionPayload>(key: K, value: CreateCrmExpansionPayload[K]) => {
    setEditCrmForm((current) => ({ ...current, [key]: value }));
    if (key in editCrmFieldErrors) {
      setEditCrmFieldErrors((current) => {
        const next = { ...current };
        delete next[key];
        return next;
      });
    }
  };

  const handleCrmContactChange = (index: number, key: keyof CrmExpansionContact, value: string, isEdit = false) => {
    const setter = isEdit ? setEditCrmForm : setCrmForm;
    setter((current) => {
      const nextContacts = [...(current.contacts ?? [])];
      const target = { ...(nextContacts[index] ?? createEmptyCrmContact()), [key]: value };
      nextContacts[index] = target;
      return { ...current, contacts: nextContacts };
    });
    if (isEdit) {
      setEditCrmFieldErrors((current) => {
        if (!current.contacts) {
          return current;
        }
        const next = { ...current };
        delete next.contacts;
        return next;
      });
      setInvalidEditCrmContactRows((current) => current.filter((rowIndex) => rowIndex !== index));
      return;
    }
    setCrmFieldErrors((current) => {
      if (!current.contacts) {
        return current;
      }
      const next = { ...current };
      delete next.contacts;
      return next;
    });
    setInvalidCreateCrmContactRows((current) => current.filter((rowIndex) => rowIndex !== index));
  };

  const addCrmContact = (isEdit = false) => {
    const setter = isEdit ? setEditCrmForm : setCrmForm;
    setter((current) => ({
      ...current,
      contacts: [...(current.contacts ?? []), createEmptyCrmContact()],
    }));
  };

  const removeCrmContact = (index: number, isEdit = false) => {
    const setter = isEdit ? setEditCrmForm : setCrmForm;
    setter((current) => {
      const currentContacts = current.contacts ?? [];
      const nextContacts = currentContacts.filter((_, contactIndex) => contactIndex !== index);
      return {
        ...current,
        contacts: nextContacts.length > 0 ? nextContacts : [createEmptyCrmContact()],
      };
    });
  };

  const handleMoveCrmContactChange = (index: number, key: keyof CrmExpansionContact, value: string) => {
    setMoveChannelForm((current) => {
      const nextContacts = [...(current.contacts ?? [])];
      const target = { ...(nextContacts[index] ?? createEmptyCrmContact()), [key]: value };
      nextContacts[index] = target;
      return { ...current, contacts: nextContacts };
    });
    setMoveChannelFieldErrors((current) => {
      if (!current.contacts) {
        return current;
      }
      const next = { ...current };
      delete next.contacts;
      return next;
    });
    setInvalidMoveCrmContactRows((current) => current.filter((rowIndex) => rowIndex !== index));
  };

  const addMoveCrmContact = () => {
    setMoveChannelForm((current) => ({
      ...current,
      contacts: [...(current.contacts ?? []), createEmptyCrmContact()],
    }));
  };

  const removeMoveCrmContact = (index: number) => {
    setMoveChannelForm((current) => {
      const currentContacts = current.contacts ?? [];
      const nextContacts = currentContacts.filter((_, contactIndex) => contactIndex !== index);
      return {
        ...current,
        contacts: nextContacts.length > 0 ? nextContacts : [createEmptyCrmContact()],
      };
    });
  };

  const handleMoveChannelContactChange = (index: number, key: keyof ChannelExpansionContact, value: string) => {
    setMoveCrmForm((current) => {
      const nextContacts = [...(current.contacts ?? [])];
      const target = { ...(nextContacts[index] ?? {}), [key]: value };
      nextContacts[index] = target;
      return { ...current, contacts: nextContacts };
    });
    setMoveCrmFieldErrors((current) => {
      if (!current.contacts) {
        return current;
      }
      const next = { ...current };
      delete next.contacts;
      return next;
    });
    setInvalidMoveChannelContactRows((current) => current.filter((rowIndex) => rowIndex !== index));
  };

  const handleChannelContactChange = (index: number, key: keyof ChannelExpansionContact, value: string, isEdit = false) => {
    const setter = isEdit ? setEditChannelForm : setChannelForm;
    setter((current) => {
      const nextContacts = [...(current.contacts ?? [])];
      const target = { ...(nextContacts[index] ?? {}), [key]: value };
      nextContacts[index] = target;
      return { ...current, contacts: nextContacts };
    });
    if (isEdit) {
      setChannelEditFieldErrors((current) => {
        if (!current.contacts) {
          return current;
        }
        const next = { ...current };
        delete next.contacts;
        return next;
      });
      setInvalidEditChannelContactRows((current) => current.filter((rowIndex) => rowIndex !== index));
      return;
    }
    setChannelCreateFieldErrors((current) => {
      if (!current.contacts) {
        return current;
      }
      const next = { ...current };
      delete next.contacts;
      return next;
    });
    setInvalidCreateChannelContactRows((current) => current.filter((rowIndex) => rowIndex !== index));
  };

  const resetCreateState = () => {
    setCreateOpen(false);
    setCreateError("");
    setSalesDuplicateChecking(false);
    setChannelDuplicateChecking(false);
    setSalesDuplicateMessage("");
    setChannelDuplicateMessage("");
    setCrmDuplicateMessage("");
    setSalesCreateFieldErrors({});
    setChannelCreateFieldErrors({});
    setCrmFieldErrors({});
    setInvalidCreateChannelContactRows([]);
    setInvalidCreateCrmContactRows([]);
    setSalesForm(defaultSalesForm);
    setChannelForm(defaultChannelForm);
    setCrmForm({
      endUser: "",
      officeName: "",
      industryAttr: [],
      extensionType: [],
      purchaseDate: "",
      warrantyExpiry: "",
      onlineStatus: "",
      contacts: [createEmptyCrmContact()],
      supplierId: 0,
      supplierName: "",
      h3cContactId: 0,
      h3cContactName: "",
      hasExpansionOpportunity: "",
      softwarePoints: undefined,
      expansionTime: "",
      expansionScale: "",
      hasMaintenanceOpportunity: "",
    });
    setCreateCityOptions([]);
    setCreateCoverageCityOptions([]);
  };

  const resetEditState = () => {
    setEditOpen(false);
    setEditError("");
    setSalesEditFieldErrors({});
    setChannelEditFieldErrors({});
    setEditCrmFieldErrors({});
    setInvalidEditChannelContactRows([]);
    setInvalidEditCrmContactRows([]);
    setEditSalesForm(defaultSalesForm);
    setEditChannelForm(defaultChannelForm);
    setEditCrmForm({
      endUser: "",
      officeName: "",
      industryAttr: [],
      extensionType: [],
      purchaseDate: "",
      warrantyExpiry: "",
      onlineStatus: "",
      contacts: [createEmptyCrmContact()],
      supplierId: 0,
      supplierName: "",
      h3cContactId: 0,
      h3cContactName: "",
      hasExpansionOpportunity: "",
      softwarePoints: undefined,
      expansionTime: "",
      expansionScale: "",
      hasMaintenanceOpportunity: "",
    });
    setEditCityOptions([]);
    setEditCoverageCityOptions([]);
  };

  const handleOpenCreate = async () => {
    setCreateError("");
    setSalesCreateFieldErrors({});
    setChannelCreateFieldErrors({});
    setCrmFieldErrors({});
    setInvalidCreateChannelContactRows([]);
    setInvalidCreateCrmContactRows([]);
    try {
      await loadMeta();
    } catch {}
    setCreateCityOptions([]);
    setCreateCoverageCityOptions([]);
    setSupplierRefreshTick((current) => current + 1);
    setCreateOpen(true);
  };

  const handleOpenEdit = async () => {
    if (!selectedItem) {
      return;
    }
    if (!canEditSelectedItem) {
      return;
    }

    setEditError("");
    let latestIndustryOptions = industryOptions;
    let latestCertificationLevelOptions = certificationLevelOptions;
    try {
      const meta = await loadMeta();
      latestIndustryOptions = meta.industryOptions ?? [];
      latestCertificationLevelOptions = meta.certificationLevelOptions ?? [];
    } catch {}

    if (selectedItem.type === "sales") {
      setSalesEditFieldErrors({});
      setEditSalesForm({
        employeeNo: selectedItem.employeeNo === "无" ? "" : selectedItem.employeeNo ?? "",
        candidateName: selectedItem.name ?? "",
        officeName: selectedItem.officeCode ?? "",
        mobile: selectedItem.phone === "无" ? "" : selectedItem.phone ?? "",
        targetDept: selectedItem.dept === "无" ? "" : selectedItem.dept ?? selectedItem.targetDept ?? "",
        industry: selectedItem.industryCode ?? "",
        title: selectedItem.title === "无" ? "" : selectedItem.title ?? "",
        intentLevel: selectedItem.intentLevel ?? "medium",
        hasDesktopExp: Boolean(selectedItem.hasExp),
        employmentStatus: selectedItem.active ? "active" : "left",
        regionProvince: decodeExpansionMultiValue(selectedItem.regionProvince).values,
        regionCity: decodeExpansionMultiValue(selectedItem.regionCity).values,
        regionItems: parseCoverageItemsString(selectedItem.regionItems),
      });
    } else if (selectedItem.type === "crm") {
      setEditCrmFieldErrors({});
      setInvalidEditCrmContactRows([]);
      setEditCrmForm({
        endUser: selectedItem.endUser ?? "",
        officeName: selectedItem.officeName ?? "",
        industryAttr: normalizeMultiOptionValues(
          selectedItem.industryAttrCode ?? (selectedItem.industryAttr === "无" ? "" : selectedItem.industryAttr),
          industryOptions,
        ),
        extensionType: normalizeMultiOptionValues(
          selectedItem.extensionType ?? "",
          extensionTypeOptions,
        ),
        purchaseDate: selectedItem.purchaseDate ?? "",
        warrantyExpiry: selectedItem.warrantyExpiry ?? "",
        onlineStatus: selectedItem.onlineStatus ?? "",
        contacts: (selectedItem.contacts?.length ?? 0) > 0
          ? selectedItem.contacts?.map((contact) => ({
              name: contact.name === "无" ? "" : contact.name ?? "",
              mobile: contact.mobile === "无" ? "" : contact.mobile ?? "",
              title: contact.title === "无" ? "" : contact.title ?? "",
            }))
          : [createEmptyCrmContact()],
        supplierId: selectedItem.supplierId ?? 0,
        supplierName: selectedItem.supplierName ?? "",
        h3cContactId: selectedItem.h3cContactId ?? 0,
        h3cContactName: selectedItem.h3cContactName ?? "",
        hasExpansionOpportunity: selectedItem.hasExpansionOpportunity ?? "",
        softwarePoints: selectedItem.softwarePoints,
        expansionTime: selectedItem.expansionTime ?? "",
        expansionScale: selectedItem.expansionScale ?? "",
        hasMaintenanceOpportunity: selectedItem.hasMaintenanceOpportunity ?? "",
      });
    } else {
      // 列表条目通过 includeDetails=false 获取，不含 contacts；若当前选中项缺少联系人，
      // 拉取包含详情的结果补齐，避免编辑时人员信息丢失（或保存时被清空）。
      let sourceItem = selectedItem;
      if ((selectedItem.contacts?.length ?? 0) === 0) {
        try {
          const data = await getExpansionOverview(keyword, true);
          const detailedItem = (data.channelItems ?? []).find((candidate) => candidate.id === selectedItem.id);
          if (detailedItem) {
            sourceItem = detailedItem;
            setSelectedItem((current) => current?.id === detailedItem.id ? detailedItem : current);
          }
        } catch {}
      }
      const parsedChannelAttributes = decodeExpansionMultiValue(sourceItem.channelAttributeCode);
      const parsedInternalAttributes = decodeExpansionMultiValue(sourceItem.internalAttributeCode);
      const parsedCoverageProvinces = decodeExpansionMultiValue(sourceItem.coverageProvince).values;
      const normalizedProvinceName = sourceItem.province === "无" ? "" : sourceItem.province ?? "";
      const normalizedCityName = sourceItem.city === "无" ? "" : sourceItem.city ?? "";
      setChannelEditFieldErrors({});
      setInvalidEditChannelContactRows([]);
      setEditChannelForm({
        channelCode: sourceItem.channelCode ?? "",
        channelName: sourceItem.name ?? "",
        province: normalizedProvinceName,
        city: normalizedCityName,
        coverageProvince: parsedCoverageProvinces,
        coverageCity: decodeExpansionMultiValue(sourceItem.coverageCity).values,
        coverageItems: parseCoverageItemsString(sourceItem.coverageItems),
        officeAddress: sourceItem.officeAddress === "无" ? "" : sourceItem.officeAddress ?? "",
        channelIndustry: normalizeMultiOptionValues(
          sourceItem.channelIndustryCode ?? (sourceItem.channelIndustry === "无" ? "" : sourceItem.channelIndustry),
          latestIndustryOptions,
        ),
        certificationLevel: normalizeOptionValue(
          sourceItem.certificationLevel === "无" ? "" : sourceItem.certificationLevel,
          latestCertificationLevelOptions,
        ) || "",
        annualRevenue: sourceItem.annualRevenue ? Number(sourceItem.annualRevenue) : undefined,
        staffSize: sourceItem.size ?? undefined,
        registeredCapital: sourceItem.registeredCapital ? Number(sourceItem.registeredCapital) : undefined,
        contactEstablishedDate: sourceItem.establishedDate === "无" ? "" : sourceItem.establishedDate ?? "",
        intentLevel: sourceItem.intentLevel ?? "medium",
        hasDesktopExp: Boolean(sourceItem.hasDesktopExp),
        channelAttribute: parsedChannelAttributes.values,
        channelAttributeCustom: parsedChannelAttributes.customText,
        internalAttribute: parsedInternalAttributes.values,
        stage: sourceItem.stageCode ?? "initial_contact",
        remark: sourceItem.notes === "无" ? "" : sourceItem.notes ?? "",
        contacts: buildChannelContactRows(sourceItem.contacts),
      });
      void loadCityOptions(normalizedProvinceName, true);
      void loadCoverageCityOptions(parsedCoverageProvinces, true);
    }
    setSupplierRefreshTick((current) => current + 1);
    setEditOpen(true);
  };

  const handleCreateSubmit = async () => {
    if (submitting) {
      return;
    }

    setCreateError("");
    if (activeTab === "sales") {
      const validationErrors = validateSalesCreateForm(salesForm);
      if (Object.keys(validationErrors).length > 0) {
        setSalesCreateFieldErrors(validationErrors);
        setCreateError("请先完整填写销售人员拓展必填字段");
        return;
      }
    } else if (activeTab === "crm") {
      const { errors: validationErrors, invalidContactRows } = validateCrmForm(crmForm);
      if (Object.keys(validationErrors).length > 0) {
        setCrmFieldErrors(validationErrors);
        setInvalidCreateCrmContactRows(invalidContactRows);
        setCreateError("请先完整填写CRM拓展必填字段");
        return;
      }
    } else {
      const { errors: validationErrors, invalidContactRows } = validateChannelForm(channelForm, channelOtherOptionValue);
      if (Object.keys(validationErrors).length > 0) {
        setChannelCreateFieldErrors(validationErrors);
        setInvalidCreateChannelContactRows(invalidContactRows);
        setCreateError("请先完整填写渠道拓展必填字段");
        return;
      }
    }

    if (activeTab === "sales") {
      const duplicateResult = await checkSalesExpansionDuplicate(salesForm.employeeNo.trim());
      if (duplicateResult.duplicated) {
        const duplicateMessage = duplicateResult.message || "工号重复，请确认该人员是否已存在！";
        setSalesDuplicateMessage(duplicateMessage);
        setSalesCreateFieldErrors((current) => ({ ...current, employeeNo: duplicateMessage }));
        setCreateError(duplicateMessage);
        return;
      }
    } else if (activeTab === "channel") {
      const duplicateResult = await checkChannelExpansionDuplicate(channelForm.channelName.trim());
      if (duplicateResult.duplicated) {
        const duplicateMessage = duplicateResult.message || "渠道重复，请确认该渠道是否已存在！";
        setChannelDuplicateMessage(duplicateMessage);
        setChannelCreateFieldErrors((current) => ({ ...current, channelName: duplicateMessage }));
        setCreateError(duplicateMessage);
        return;
      }
    } else if (activeTab === "crm") {
      const duplicateResult = await checkCrmExpansionDuplicate(crmForm.endUser.trim());
      if (duplicateResult.duplicated) {
        const duplicateMessage = duplicateResult.message || "最终用户重复，请确认该客户是否已存在！";
        setCrmDuplicateMessage(duplicateMessage);
        setCrmFieldErrors((current) => ({ ...current, endUser: duplicateMessage }));
        setCreateError(duplicateMessage);
        return;
      }
    }

    setSubmitting(true);

    try {
      if (activeTab === "sales") {
        await createSalesExpansion(normalizeSalesPayload(salesForm));
      } else if (activeTab === "crm") {
        await createCrmExpansion(crmForm);
      } else {
        await createChannelExpansion(normalizeChannelPayload(channelForm));
      }

      resetCreateState();
      setRefreshTick((current) => current + 1);
    } catch (error) {
      setCreateError(error instanceof Error ? error.message : "新增失败");
    } finally {
      setSubmitting(false);
    }
  };

  const handleEditSubmit = async () => {
    if (!selectedItem || submitting) {
      return;
    }
    if (!canEditSelectedItem) {
      setEditError("仅可编辑本人创建的数据");
      return;
    }

    setEditError("");
    if (selectedItem.type === "sales") {
      const validationErrors = validateSalesCreateForm(editSalesForm);
      if (Object.keys(validationErrors).length > 0) {
        setSalesEditFieldErrors(validationErrors);
        setEditError("请先完整填写销售人员拓展必填字段");
        return;
      }
    } else if (selectedItem.type === "crm") {
      const { errors: validationErrors, invalidContactRows } = validateCrmForm(editCrmForm);
      if (Object.keys(validationErrors).length > 0) {
        setEditCrmFieldErrors(validationErrors);
        setInvalidEditCrmContactRows(invalidContactRows);
        setEditError("请先完整填写CRM拓展必填字段");
        return;
      }
    } else {
      const { errors: validationErrors, invalidContactRows } = validateChannelForm(editChannelForm, channelOtherOptionValue);
      if (Object.keys(validationErrors).length > 0) {
        setChannelEditFieldErrors(validationErrors);
        setInvalidEditChannelContactRows(invalidContactRows);
        setEditError("请先完整填写渠道拓展必填字段");
        return;
      }
    }

    if (selectedItem.type === "sales") {
      const duplicateResult = await checkSalesExpansionDuplicate(editSalesForm.employeeNo.trim(), selectedItem.id);
      if (duplicateResult.duplicated) {
        const duplicateMessage = duplicateResult.message || "工号重复，请确认该人员是否已存在！";
        setSalesDuplicateMessage(duplicateMessage);
        setSalesEditFieldErrors((current) => ({ ...current, employeeNo: duplicateMessage }));
        setEditError(duplicateMessage);
        return;
      }
    } else if (selectedItem.type === "channel") {
      const duplicateResult = await checkChannelExpansionDuplicate(editChannelForm.channelName.trim(), selectedItem.id);
      if (duplicateResult.duplicated) {
        const duplicateMessage = duplicateResult.message || "渠道重复，请确认该渠道是否已存在！";
        setChannelDuplicateMessage(duplicateMessage);
        setChannelEditFieldErrors((current) => ({ ...current, channelName: duplicateMessage }));
        setEditError(duplicateMessage);
        return;
      }
    } else if (selectedItem.type === "crm") {
      const duplicateResult = await checkCrmExpansionDuplicate(editCrmForm.endUser.trim(), selectedItem.id);
      if (duplicateResult.duplicated) {
        const duplicateMessage = duplicateResult.message || "最终用户重复，请确认该客户是否已存在！";
        setCrmDuplicateMessage(duplicateMessage);
        setEditCrmFieldErrors((current) => ({ ...current, endUser: duplicateMessage }));
        setEditError(duplicateMessage);
        return;
      }
    }

    setSubmitting(true);

    try {
      if (selectedItem.type === "sales") {
        await updateSalesExpansion(selectedItem.id, normalizeSalesPayload(editSalesForm));
      } else if (selectedItem.type === "crm") {
        await updateCrmExpansion(selectedItem.id, editCrmForm);
      } else {
        await updateChannelExpansion(selectedItem.id, normalizeChannelPayload(editChannelForm));
      }

      resetEditState();
      setSelectedItem(null);
      setRefreshTick((current) => current + 1);
    } catch (error) {
      setEditError(error instanceof Error ? error.message : "编辑失败");
    } finally {
      setSubmitting(false);
    }
  };

  const resetMoveState = () => {
    setMoveOpen(false);
    setMoveError("");
    setMoveChannelFieldErrors({});
    setMoveCrmFieldErrors({});
    setMoveChannelForm(defaultMoveChannelForm);
    setMoveCrmForm(defaultMoveCrmForm);
    setMoveCityOptions([]);
    setInvalidMoveCrmContactRows([]);
    setInvalidMoveChannelContactRows([]);
    setSupplierChannelQuery("");
    setSupplierSalesQuery("");
  };

  const handleOpenMove = async () => {
    if (!selectedItem) {
      return;
    }
    if (!canEditSelectedItem) {
      return;
    }
    setMoveError("");
    setMoveChannelFieldErrors({});
    setMoveCrmFieldErrors({});
    setSupplierRefreshTick((current) => current + 1);
    if (selectedItem.type === "channel") {
      // 采购时间/过保时间不沿渠道「成立时间」强预填，留空让用户手选，避免实际不符
      setMoveChannelForm({
        officeName: matchOfficeValueByProvince(selectedItem.province, officeOptions),
        extensionType: [],
        purchaseDate: "",
        warrantyExpiry: "",
        onlineStatus: "",
        supplierId: 0,
        supplierName: "",
        h3cContactId: 0,
        h3cContactName: "",
        hasExpansionOpportunity: "",
        softwarePoints: undefined,
        expansionTime: "",
        expansionScale: "",
        hasMaintenanceOpportunity: "",
        contacts: (selectedItem.contacts?.length ?? 0) > 0
          ? selectedItem.contacts?.map((contact) => ({
              name: contact.name === "无" ? "" : contact.name ?? "",
              mobile: contact.mobile === "无" ? "" : contact.mobile ?? "",
              title: contact.title === "无" ? "" : contact.title ?? "",
            }))
          : [],
      });
      setMoveCityOptions([]);
    } else if (selectedItem.type === "crm") {
      const initialProvince = officeOptions.find((option) => option.value === selectedItem.officeName)?.label ?? selectedItem.officeName ?? "";
      setMoveCrmForm({
        province: initialProvince,
        city: "",
        officeAddress: "",
        certificationLevel: "",
        annualRevenue: 0,
        staffSize: 0,
        registeredCapital: 0,
        channelAttribute: [],
        channelAttributeCustom: "",
        internalAttribute: [],
        coverageProvince: [],
        coverageCity: [],
        intentLevel: "",
        hasDesktopExp: false,
        stage: "initial_contact",
        landedFlag: false,
        expectedSignDate: "",
        contacts: buildChannelContactRows(selectedItem.contacts),
      });
      if (initialProvince) {
        try {
          setMoveCityOptions(await getExpansionCityOptions(initialProvince));
        } catch {
          setMoveCityOptions([]);
        }
      } else {
        setMoveCityOptions([]);
      }
    }
    setMoveOpen(true);
  };

  const validateMoveChannelForm = (form: MoveChannelToCrmPayload, sourceId: CrmId) => {
    const errors: Partial<Record<keyof MoveChannelToCrmPayload, string>> = {};
    const invalidContactRows: number[] = [];
    if (!form.officeName?.trim()) errors.officeName = "请选择代表处";
    if ((form.extensionType?.length ?? 0) <= 0) errors.extensionType = "请选择类型";
    if (form.softwarePoints == null || Number.isNaN(form.softwarePoints) || form.softwarePoints < 0) errors.softwarePoints = "请填写软件点数";
    if (!form.purchaseDate) errors.purchaseDate = "请选择采购时间";
    if (!form.warrantyExpiry) errors.warrantyExpiry = "请选择过保时间";
    if (!form.onlineStatus?.trim()) errors.onlineStatus = "请选择在线情况";
    if ((!form.supplierId || String(form.supplierId) === "0") && !form.supplierName?.trim()) errors.supplierId = "请选择或填写进货商";
    else if (String(form.supplierId) === String(sourceId)) errors.supplierId = "不能选择被迁移的渠道本身";
    if ((!form.h3cContactId || String(form.h3cContactId) === "0") && !form.h3cContactName?.trim()) errors.h3cContactId = "请选择或填写新华三对接人";
    if (!form.hasExpansionOpportunity?.trim()) errors.hasExpansionOpportunity = "请选择是否有扩容机会";
    if (form.hasExpansionOpportunity === "1") {
      if (!form.expansionTime?.trim()) errors.expansionTime = "请选择扩容时间";
      if (!form.expansionScale?.trim()) errors.expansionScale = "请填写扩容规模";
    }
    if (!form.hasMaintenanceOpportunity?.trim()) errors.hasMaintenanceOpportunity = "请选择是否有维保项目机会";
    const contacts = form.contacts ?? [];
    if (contacts.length <= 0) {
      errors.contacts = "请至少填写一位联系人";
      invalidContactRows.push(0);
    } else {
      contacts.forEach((contact, index) => {
        const hasName = Boolean(contact.name?.trim());
        const hasMobile = Boolean(contact.mobile?.trim());
        const hasTitle = Boolean(contact.title?.trim());
        if (!hasName || !hasMobile || !hasTitle) {
          invalidContactRows.push(index);
        }
      });
      if (invalidContactRows.length > 0) {
        errors.contacts = "请完整填写每位联系人的姓名、联系电话和职位";
      }
    }
    return { errors, invalidContactRows };
  };

  const validateMoveCrmForm = (form: MoveCrmToChannelPayload) => {
    const errors: Partial<Record<keyof MoveCrmToChannelPayload, string>> = {};
    if (!form.city?.trim()) errors.city = "请选择市";
    if (!form.officeAddress?.trim()) errors.officeAddress = "请填写办公地址";
    if (!form.certificationLevel?.trim()) errors.certificationLevel = "请选择汇智内部认证级别";
    if (!(form.annualRevenue > 0)) errors.annualRevenue = "请填写年度营业额";
    if (!(form.staffSize > 0)) errors.staffSize = "请填写人员规模";
    if (!(form.registeredCapital > 0)) errors.registeredCapital = "请填写注册资金(万元)";
    if (!form.channelAttribute?.length) errors.channelAttribute = "请选择渠道属性";
    if (!form.internalAttribute?.length) errors.internalAttribute = "请选择新华三内部属性";
    if (!form.coverageProvince?.length) errors.coverageProvince = "请选择覆盖省份";
    if (!form.coverageCity?.length) errors.coverageCity = "请选择覆盖市/区/县";
    if (!form.intentLevel?.trim()) errors.intentLevel = "请选择合作意向";
    const contactValidation = validateChannelContactRows(form.contacts);
    if (contactValidation.error) {
      errors.contacts = contactValidation.error;
    }
    return { errors, invalidContactRows: contactValidation.invalidContactRows };
  };

  const handleMoveSubmit = async () => {
    if (!selectedItem || moveSubmitting) {
      return;
    }
    if (!canEditSelectedItem) {
      setMoveError("仅可操作本人创建的数据");
      return;
    }
    setMoveError("");
    if (selectedItem.type === "channel") {
      const { errors: validationErrors, invalidContactRows } = validateMoveChannelForm(moveChannelForm, selectedItem.id);
      if (Object.keys(validationErrors).length > 0) {
        setMoveChannelFieldErrors(validationErrors);
        setInvalidMoveCrmContactRows(invalidContactRows);
        setMoveError("请先完整填写必填字段");
        return;
      }
    } else if (selectedItem.type === "crm") {
      const { errors: validationErrors, invalidContactRows } = validateMoveCrmForm(moveCrmForm);
      if (Object.keys(validationErrors).length > 0) {
        setMoveCrmFieldErrors(validationErrors);
        setInvalidMoveChannelContactRows(invalidContactRows);
        setMoveError("请先完整填写必填字段");
        return;
      }
    } else {
      return;
    }

    setMoveSubmitting(true);
    try {
      if (selectedItem.type === "channel") {
        await moveChannelToCrm(selectedItem.id, moveChannelForm);
      } else {
        await moveCrmToChannel(selectedItem.id, moveCrmForm);
      }
      resetMoveState();
      setSelectedItem(null);
      setRefreshTick((current) => current + 1);
    } catch (error) {
      setMoveError(error instanceof Error ? error.message : "迁移失败");
    } finally {
      setMoveSubmitting(false);
    }
  };

  const renderEmpty = () => (
    <div className="crm-empty-panel">
      暂无拓展数据，先新增一条试试。
    </div>
  );

  const renderFollowUpTimeline = () => {
    if (followUpRecords.length <= 0) {
      return (
        <div className="crm-empty-panel">
          暂无跟进记录
        </div>
      );
    }

    return (
      <div className="relative space-y-6 border-l-2 border-slate-100 pl-4 dark:border-slate-800">
        {followUpRecords.map((record) => {
          const summary = getExpansionFollowUpSummary(record);
          return (
          <div key={record.id} className="relative">
            <div className="absolute -left-[21px] mt-1.5 h-2.5 w-2.5 rounded-full bg-violet-500 ring-4 ring-white dark:ring-slate-900" />
            <div className="rounded-xl border border-slate-100 bg-slate-50/50 p-4 dark:border-slate-800 dark:bg-slate-800/20">
              {selectedItem?.type === "crm" ? (
                <div className="grid grid-cols-1 gap-3 rounded-xl border border-amber-200 bg-amber-50 p-3 text-sm dark:border-amber-500/20 dark:bg-amber-500/10 sm:grid-cols-2">
                  <div><p className="mb-1 text-xs text-amber-700 dark:text-amber-300">拜访时间</p><p className="break-anywhere font-medium text-slate-900 dark:text-white">{summary.visitStartTime}</p></div>
                  <div><p className="mb-1 text-xs text-amber-700 dark:text-amber-300">拜访内容</p><p className="break-anywhere whitespace-pre-line font-medium text-slate-900 dark:text-white">{record.content || "无"}</p></div>
                </div>
              ) : (
                <div className="grid grid-cols-1 gap-3 rounded-xl border border-amber-200 bg-amber-50 p-3 text-sm dark:border-amber-500/20 dark:bg-amber-500/10 sm:grid-cols-3">
                  <div><p className="mb-1 text-xs text-amber-700 dark:text-amber-300">拜访时间</p><p className="break-anywhere font-medium text-slate-900 dark:text-white">{summary.visitStartTime}</p></div>
                  <div><p className="mb-1 text-xs text-amber-700 dark:text-amber-300">沟通内容</p><p className="break-anywhere font-medium text-slate-900 dark:text-white">{summary.evaluationContent}</p></div>
                  <div><p className="mb-1 text-xs text-amber-700 dark:text-amber-300">后续规划</p><p className="break-anywhere font-medium text-slate-900 dark:text-white">{summary.nextPlan}</p></div>
                </div>
              )}
              <p className="mt-2 text-xs text-slate-400">跟进人: {record.user || "无"}<span className="ml-3">{record.date || "无"}</span></p>
            </div>
          </div>
        )})}
      </div>
    );
  };

  const handleTabChange = (tab: ExpansionTab) => {
    setActiveTab(tab);
    setSelectedItem(null);
    setExportError("");
  };

  const handleExport = async (filters: ExpansionExportFilters) => {
    if (exporting) {
      return;
    }

    const isSalesTab = activeTab === "sales";
    const isCrmTab = activeTab === "crm";
    const normalizedFilters = applyDefaultRelatedProjectStageFilters(filters, relatedProjectStageOptions);
    setExporting(true);
    setExportError("");
    setExportFilters(normalizedFilters);
    persistExpansionExportPreferences(normalizedFilters);

    try {
      const overview = !isCrmTab ? await getExpansionOverview("") : null;
      const exportSalesItems = overview
        ? dedupeExpansionItemsById(overview.salesItems ?? [])
          .map((item) => withFilteredSalesRelatedProjects(item, normalizedFilters))
          .filter((item) => matchesSalesExportFilters(item, normalizedFilters))
        : [];
      const exportChannelItems = overview
        ? dedupeExpansionItemsById(overview.channelItems ?? [])
          .map((item) => withFilteredChannelRelatedProjects(item, normalizedFilters))
          .filter((item) => matchesChannelExportFilters(item, normalizedFilters))
        : [];
      const exportCrmItems = isCrmTab
        ? dedupeExpansionItemsById((await getCrmExpansionOverview("")).crmItems ?? [])
          .filter((item) => matchesCrmExportFilters(item, normalizedFilters, officeOptions))
        : [];
      const exportItems = isSalesTab ? exportSalesItems : isCrmTab ? exportCrmItems : exportChannelItems;
      const selectedSalesFieldKeys = resolveSelectedExpansionFields(normalizedFilters.selectedSalesFields, defaultSalesExportFields);
      const selectedChannelFieldKeys = resolveSelectedExpansionFields(normalizedFilters.selectedChannelFields, defaultChannelExportFields);
      const selectedCrmFieldKeys = resolveSelectedExpansionFields(normalizedFilters.selectedCrmFields, defaultCrmExportFields);
      const selectedFieldKeys = isSalesTab ? selectedSalesFieldKeys : isCrmTab ? selectedCrmFieldKeys : selectedChannelFieldKeys;
      if (exportItems.length <= 0) {
        throw new Error(`当前筛选条件下暂无可导出的${isSalesTab ? "销售人员拓展" : isCrmTab ? "CRM拓展" : "渠道拓展"}数据`);
      }
      if (selectedFieldKeys.length <= 0) {
        throw new Error("请至少选择一个导出字段");
      }

      const ExcelJS = await import("exceljs");
      const workbook = new ExcelJS.Workbook();
      const worksheet = workbook.addWorksheet(isSalesTab ? "销售人员拓展" : isCrmTab ? "CRM拓展" : "渠道拓展");
      const salesColumns = salesExportColumns.filter((column) => selectedSalesFieldKeys.includes(column.key));
      const channelColumns = buildChannelExportColumns(isOptions).filter((column) => selectedChannelFieldKeys.includes(column.key));
      const crmColumns = buildCrmExportColumns(officeOptions).filter((column) => selectedCrmFieldKeys.includes(column.key));
      const columns = isSalesTab ? salesColumns : isCrmTab ? crmColumns : channelColumns;
      const headers = columns.map((column) => column.label);
      const rows = isSalesTab
        ? buildExportRows(exportSalesItems, salesColumns)
        : isCrmTab
          ? buildExportRows(exportCrmItems, crmColumns)
          : buildExportRows(exportChannelItems, channelColumns);

      worksheet.addRow(headers);
      rows.forEach((row) => {
        worksheet.addRow(row);
      });

      worksheet.views = [{ state: "frozen", ySplit: 1 }];
      worksheet.getRow(1).height = 24;
      worksheet.getRow(1).font = { bold: true };
      worksheet.getRow(1).alignment = { vertical: "middle", horizontal: "center" };
      const columnWidths = columns.map((column, index) => {
        const columnValues = rows.map((row) => row[index]).filter((value): value is string => typeof value === "string");
        if (column.kind === "followup") {
          return 42;
        }
        if (column.kind === "project" || column.kind === "contact") {
          return Math.min(
            80,
            Math.max(
              16,
              getExcelDisplayWidth(column.label) + 2,
              columnValues.reduce((maxWidth, value) => {
                const longestLineWidth = value.split("\n").reduce((lineMax, line) => Math.max(lineMax, getExcelDisplayWidth(line)), 0);
                return Math.max(maxWidth, longestLineWidth + 2);
              }, 0),
            ),
          );
        }
        if (column.kind === "longText") {
          return 24;
        }
        if (column.label.includes("渠道属性") || column.label.includes("内部属性") || column.label.includes("聚焦行业")) {
          return 18;
        }
        return 16;
      });

      columns.forEach((columnConfig, index) => {
        const column = worksheet.getColumn(index + 1);
        column.width = columnWidths[index];
        if (columnConfig.numFmt) {
          column.numFmt = columnConfig.numFmt;
        }
        column.alignment = {
          vertical: "top",
          horizontal: "left",
          wrapText: columnConfig.kind === "followup" || columnConfig.kind === "project" || columnConfig.kind === "contact",
        };
      });

      worksheet.eachRow((row, rowNumber) => {
        row.eachCell((cell, columnNumber) => {
          cell.border = {
            top: { style: "thin", color: { argb: "FFE2E8F0" } },
            left: { style: "thin", color: { argb: "FFE2E8F0" } },
            bottom: { style: "thin", color: { argb: "FFE2E8F0" } },
            right: { style: "thin", color: { argb: "FFE2E8F0" } },
          };
          cell.alignment = {
            vertical: "top",
            horizontal: rowNumber === 1 ? "center" : "left",
            wrapText: rowNumber > 1 && (columns[columnNumber - 1]?.kind === "followup" || columns[columnNumber - 1]?.kind === "project" || columns[columnNumber - 1]?.kind === "contact"),
          };
        });
        if (rowNumber > 1) {
          const wrappedLineCount = columns.reduce((maxLineCount, column, index) => {
            if (column.kind !== "project" && column.kind !== "contact" && column.kind !== "followup") {
              return maxLineCount;
            }
            const cellValue = row.getCell(index + 1).value;
            const text = typeof cellValue === "string" ? cellValue : "";
            return Math.max(maxLineCount, getExcelWrappedLineCount(text, columnWidths[index]));
          }, 1);
          row.height = Math.max(22, wrappedLineCount * 16);
        }
      });

      const buffer = await workbook.xlsx.writeBuffer();
      const filename = `${isSalesTab ? "销售人员拓展" : isCrmTab ? "CRM拓展" : "渠道拓展"}_${formatExportFilenameTime()}.xlsx`;
      downloadExcelFile(filename, buffer);
      setExportFilterOpen(false);
    } catch (error) {
      setExportError(error instanceof Error ? error.message : "导出失败，请稍后重试");
    } finally {
      setExporting(false);
    }
  };

  const renderSalesForm = (
    form: CreateSalesExpansionPayload,
    onChange: <K extends keyof CreateSalesExpansionPayload>(key: K, value: CreateSalesExpansionPayload[K]) => void,
    fieldErrors?: Partial<Record<SalesCreateField, string>>,
    isEdit = false,
  ) => (
    <div className="crm-form-grid">
      <label className="space-y-2">
        <span className="text-sm font-medium text-slate-700 dark:text-slate-300">工号<RequiredMark /></span>
        <input value={form.employeeNo} onChange={(e) => onChange("employeeNo", e.target.value)} className={getFieldInputClass(Boolean(fieldErrors?.employeeNo))} />
        {fieldErrors?.employeeNo ? <p className="text-xs text-rose-500">{fieldErrors.employeeNo}</p> : null}
        {!fieldErrors?.employeeNo && !isEdit && salesDuplicateMessage ? <p className="text-xs text-rose-500">{salesDuplicateMessage}</p> : null}
      </label>
      <label className="space-y-2">
        <span className="text-sm font-medium text-slate-700 dark:text-slate-300">代表处 / 办事处<RequiredMark /></span>
        <AdaptiveSelect
          value={form.officeName || ""}
          placeholder="请选择"
          sheetTitle="代表处 / 办事处"
          searchable
          searchPlaceholder="搜索代表处 / 办事处"
          options={[
            { value: "", label: "请选择" },
            ...officeOptions.map((option) => ({
              value: option.value ?? "",
              label: option.label || "无",
            })),
          ]}
          className={cn(
            fieldErrors?.officeName ? "border-rose-400 bg-rose-50/60 focus:border-rose-500 focus:ring-rose-500 dark:border-rose-500/70 dark:bg-rose-500/10" : "",
          )}
          onChange={(value) => onChange("officeName", value || undefined)}
        />
        {fieldErrors?.officeName ? <p className="text-xs text-rose-500">{fieldErrors.officeName}</p> : null}
      </label>
      <label className="space-y-2">
        <span className="text-sm font-medium text-slate-700 dark:text-slate-300">姓名<RequiredMark /></span>
        <input value={form.candidateName} onChange={(e) => onChange("candidateName", e.target.value)} className={getFieldInputClass(Boolean(fieldErrors?.candidateName))} />
        {fieldErrors?.candidateName ? <p className="text-xs text-rose-500">{fieldErrors.candidateName}</p> : null}
      </label>
      <label className="space-y-2">
        <span className="text-sm font-medium text-slate-700 dark:text-slate-300">联系方式<RequiredMark /></span>
        <input value={form.mobile} onChange={(e) => onChange("mobile", e.target.value)} className={getFieldInputClass(Boolean(fieldErrors?.mobile))} />
        {fieldErrors?.mobile ? <p className="text-xs text-rose-500">{fieldErrors.mobile}</p> : null}
      </label>
      <label className="space-y-2">
        <span className="text-sm font-medium text-slate-700 dark:text-slate-300">所属区域<RequiredMark /></span>
        <CoverageCascaderSelect
          value={{ provinces: form.regionProvince ?? [], cities: form.regionCity ?? [], items: form.regionItems ?? [] }}
          onChange={(next) => {
            onChange("regionProvince", next.provinces);
            onChange("regionCity", next.cities);
            onChange("regionItems", next.items);
          }}
          provinceOptions={provinceOptions}
          getCities={loadCityOptions}
          isEdit={isEdit}
          hasError={Boolean(fieldErrors?.regionProvince)}
        />
        {fieldErrors?.regionProvince ? <p className="text-xs text-rose-500">{fieldErrors.regionProvince}</p> : null}
      </label>
      <label className="space-y-2">
        <span className="text-sm font-medium text-slate-700 dark:text-slate-300">所属行业<RequiredMark /></span>
        <AdaptiveSelect
          value={form.industry || ""}
          placeholder="请选择"
          sheetTitle="所属行业"
          options={[
            { value: "", label: "请选择" },
            ...industryOptions.map((option) => ({
              value: option.value ?? "",
              label: option.label || "无",
            })),
          ]}
          className={cn(
            fieldErrors?.industry ? "border-rose-400 bg-rose-50/60 focus:border-rose-500 focus:ring-rose-500 dark:border-rose-500/70 dark:bg-rose-500/10" : "",
          )}
          onChange={(value) => onChange("industry", value || undefined)}
        />
        {fieldErrors?.industry ? <p className="text-xs text-rose-500">{fieldErrors.industry}</p> : null}
      </label>
      <label className="space-y-2">
        <span className="text-sm font-medium text-slate-700 dark:text-slate-300">职务<RequiredMark /></span>
        <input value={form.title} onChange={(e) => onChange("title", e.target.value)} className={getFieldInputClass(Boolean(fieldErrors?.title))} />
        {fieldErrors?.title ? <p className="text-xs text-rose-500">{fieldErrors.title}</p> : null}
      </label>
      <label className="space-y-2">
        <span className="text-sm font-medium text-slate-700 dark:text-slate-300">合作意向<RequiredMark /></span>
        <AdaptiveSelect
          value={form.intentLevel}
          sheetTitle="合作意向"
          options={[
            { value: "high", label: "高" },
            { value: "medium", label: "中" },
            { value: "low", label: "低" },
          ]}
          className={cn(
            fieldErrors?.intentLevel ? "border-rose-400 bg-rose-50/60 focus:border-rose-500 focus:ring-rose-500 dark:border-rose-500/70 dark:bg-rose-500/10" : "",
          )}
          onChange={(value) => onChange("intentLevel", value)}
        />
        {fieldErrors?.intentLevel ? <p className="text-xs text-rose-500">{fieldErrors.intentLevel}</p> : null}
      </label>
      <label className="space-y-2">
        <span className="text-sm font-medium text-slate-700 dark:text-slate-300">销售是否在职<RequiredMark /></span>
        <AdaptiveSelect
          value={form.employmentStatus}
          sheetTitle="销售是否在职"
          options={[
            { value: "active", label: "是" },
            { value: "left", label: "否" },
          ]}
          className={cn(
            fieldErrors?.employmentStatus ? "border-rose-400 bg-rose-50/60 focus:border-rose-500 focus:ring-rose-500 dark:border-rose-500/70 dark:bg-rose-500/10" : "",
          )}
          onChange={(value) => onChange("employmentStatus", value)}
        />
        {fieldErrors?.employmentStatus ? <p className="text-xs text-rose-500">{fieldErrors.employmentStatus}</p> : null}
      </label>
      <label className="flex items-center justify-between rounded-xl border border-slate-200 px-4 py-3 dark:border-slate-800">
        <span className="text-sm font-medium text-slate-700 dark:text-slate-300">销售以前是否做过云桌面项目</span>
        <input type="checkbox" checked={Boolean(form.hasDesktopExp)} onChange={(e) => onChange("hasDesktopExp", e.target.checked)} />
      </label>
      <label className="space-y-2 sm:col-span-2">
        <span className="text-sm font-medium text-slate-700 dark:text-slate-300">跟进的云桌面项目</span>
        <div className="rounded-xl border border-dashed border-slate-200 bg-slate-50 px-4 py-3 text-sm text-slate-500 dark:border-slate-800 dark:bg-slate-900/30 dark:text-slate-400">
          首次新增不需要填写，关联商机后会自动按列表展示项目编码、项目名称和项目金额。
        </div>
      </label>
    </div>
  );

  const renderChannelForm = (
    form: CreateChannelExpansionPayload,
    onChange: <K extends keyof CreateChannelExpansionPayload>(key: K, value: CreateChannelExpansionPayload[K]) => void,
    isEdit = false,
    fieldErrors?: Partial<Record<ChannelField, string>>,
    invalidContactRows: number[] = [],
  ) => {

    return (
    <div className="crm-form-grid">
      <label className="space-y-2">
        <span className="text-sm font-medium text-slate-700 dark:text-slate-300">编码</span>
        <input
          value={form.channelCode || (isEdit ? "" : nextChannelCode || "系统自动生成")}
          readOnly
          className="crm-input-box-readonly crm-input-text w-full border border-slate-200 bg-slate-50 text-slate-500 outline-none dark:border-slate-800 dark:bg-slate-900/30 dark:text-slate-400"
        />
      </label>
      <label className="space-y-2 sm:col-span-2">
        <span className="text-sm font-medium text-slate-700 dark:text-slate-300">渠道名称<RequiredMark /></span>
        <input value={form.channelName} onChange={(e) => onChange("channelName", e.target.value)} className={getFieldInputClass(Boolean(fieldErrors?.channelName))} />
        {fieldErrors?.channelName ? <p className="text-xs text-rose-500">{fieldErrors.channelName}</p> : null}
        {!fieldErrors?.channelName && !isEdit && channelDuplicateMessage ? <p className="text-xs text-rose-500">{channelDuplicateMessage}</p> : null}
      </label>
      <ChannelAddressField
        value={{ province: form.province, city: form.city, officeAddress: form.officeAddress }}
        onChange={(address) => {
          onChange("province", address.province);
          onChange("city", address.city);
          onChange("officeAddress", address.officeAddress);
        }}
        provinceOptions={provinceOptions}
        isEdit={isEdit}
        errors={fieldErrors}
        loadCityOptions={loadCityOptions}
      />
      <label className="space-y-2 sm:col-span-2">
        <span className="text-sm font-medium text-slate-700 dark:text-slate-300">覆盖地市<RequiredMark /></span>
        <CoverageCascaderSelect
          value={{ provinces: form.coverageProvince ?? [], cities: form.coverageCity ?? [], items: form.coverageItems ?? [] }}
          onChange={(next) => {
            onChange("coverageProvince", next.provinces);
            onChange("coverageCity", next.cities);
            onChange("coverageItems", next.items);
          }}
          provinceOptions={provinceOptions}
          getCities={loadCityOptions}
          isEdit={isEdit}
          hasError={Boolean(fieldErrors?.coverageProvince || fieldErrors?.coverageCity)}
        />
        {(fieldErrors?.coverageProvince || fieldErrors?.coverageCity) ? (
          <p className="text-xs text-rose-500">{fieldErrors?.coverageProvince || fieldErrors?.coverageCity}</p>
        ) : null}
      </label>
      <label className="space-y-2">
        <span className="text-sm font-medium text-slate-700 dark:text-slate-300">聚焦行业<RequiredMark /></span>
        <AdaptiveSelect
          multiple
          value={form.channelIndustry || []}
          placeholder="请选择"
          sheetTitle="聚焦行业"
          options={industryOptions.map((option) => ({
            value: option.value ?? "",
            label: option.label || "无",
          }))}
          className={cn(
            fieldErrors?.channelIndustry ? "border-rose-400 bg-rose-50/60 focus:border-rose-500 focus:ring-rose-500 dark:border-rose-500/70 dark:bg-rose-500/10" : "",
          )}
          onChange={(value) => onChange("channelIndustry", value)}
        />
        {fieldErrors?.channelIndustry ? <p className="text-xs text-rose-500">{fieldErrors.channelIndustry}</p> : null}
      </label>
      <label className="space-y-2">
        <span className="text-sm font-medium text-slate-700 dark:text-slate-300">汇智内部认证级别<RequiredMark /></span>
        <AdaptiveSelect
          value={form.certificationLevel || ""}
          placeholder="请选择"
          sheetTitle="汇智内部认证级别"
          options={[
            { value: "", label: "请选择" },
            ...certificationLevelOptions.map((option) => ({
              value: option.value ?? "",
              label: option.label || "无",
            })),
          ]}
          className={cn(
            fieldErrors?.certificationLevel ? "border-rose-400 bg-rose-50/60 focus:border-rose-500 focus:ring-rose-500 dark:border-rose-500/70 dark:bg-rose-500/10" : "",
          )}
          onChange={(value) => onChange("certificationLevel", value || undefined)}
        />
        {fieldErrors?.certificationLevel ? <p className="text-xs text-rose-500">{fieldErrors.certificationLevel}</p> : null}
      </label>
      <label className="space-y-2">
        <span className="text-sm font-medium text-slate-700 dark:text-slate-300">{CHANNEL_REVENUE_LABEL}<RequiredMark /></span>
        <input
          type="number"
          min="0.01"
          step="0.01"
          placeholder="请输入万元"
          value={form.annualRevenue ?? ""}
          onChange={(e) => onChange("annualRevenue", e.target.value ? Number(e.target.value) : undefined)}
          className={getFieldInputClass(Boolean(fieldErrors?.annualRevenue))}
        />
        {fieldErrors?.annualRevenue ? <p className="text-xs text-rose-500">{fieldErrors.annualRevenue}</p> : null}
      </label>
      <label className="space-y-2">
        <span className="text-sm font-medium text-slate-700 dark:text-slate-300">人员规模<RequiredMark /></span>
        <input type="number" value={form.staffSize ?? ""} onChange={(e) => onChange("staffSize", e.target.value ? Number(e.target.value) : undefined)} className={getFieldInputClass(Boolean(fieldErrors?.staffSize))} />
        {fieldErrors?.staffSize ? <p className="text-xs text-rose-500">{fieldErrors.staffSize}</p> : null}
      </label>
      <label className="space-y-2">
        <span className="text-sm font-medium text-slate-700 dark:text-slate-300">{CHANNEL_REGISTERED_CAPITAL_LABEL}<RequiredMark /></span>
        <input
          type="number"
          min="0.01"
          step="0.01"
          placeholder="请输入万元"
          value={form.registeredCapital ?? ""}
          onChange={(e) => onChange("registeredCapital", e.target.value ? Number(e.target.value) : undefined)}
          className={getFieldInputClass(Boolean(fieldErrors?.registeredCapital))}
        />
        {fieldErrors?.registeredCapital ? <p className="text-xs text-rose-500">{fieldErrors.registeredCapital}</p> : null}
      </label>
      <label className="space-y-2">
        <span className="text-sm font-medium text-slate-700 dark:text-slate-300">建立联系时间<RequiredMark /></span>
        <input type="date" value={form.contactEstablishedDate || ""} onChange={(e) => onChange("contactEstablishedDate", e.target.value)} className={getFieldInputClass(Boolean(fieldErrors?.contactEstablishedDate))} />
        {fieldErrors?.contactEstablishedDate ? <p className="text-xs text-rose-500">{fieldErrors.contactEstablishedDate}</p> : null}
      </label>
      <label className="space-y-2">
        <span className="text-sm font-medium text-slate-700 dark:text-slate-300">合作意向<RequiredMark /></span>
        <AdaptiveSelect
          value={form.intentLevel || "medium"}
          sheetTitle="合作意向"
          options={[
            { value: "high", label: "高" },
            { value: "medium", label: "中" },
            { value: "low", label: "低" },
          ]}
          className={cn(
            fieldErrors?.intentLevel ? "border-rose-400 bg-rose-50/60 focus:border-rose-500 focus:ring-rose-500 dark:border-rose-500/70 dark:bg-rose-500/10" : "",
          )}
          onChange={(value) => onChange("intentLevel", value)}
        />
        {fieldErrors?.intentLevel ? <p className="text-xs text-rose-500">{fieldErrors.intentLevel}</p> : null}
      </label>
      <label className="space-y-2">
        <span className="text-sm font-medium text-slate-700 dark:text-slate-300">渠道属性<RequiredMark /></span>
        <AdaptiveSelect
          multiple
          value={form.channelAttribute || []}
          placeholder="请选择"
          sheetTitle="渠道属性"
          options={channelAttributeOptions.map((option) => ({
            value: option.value ?? "",
            label: option.label || "无",
          }))}
          className={cn(
            fieldErrors?.channelAttribute ? "border-rose-400 bg-rose-50/60 focus:border-rose-500 focus:ring-rose-500 dark:border-rose-500/70 dark:bg-rose-500/10" : "",
          )}
          onChange={(value) => {
            onChange("channelAttribute", value);
            if (!channelOtherOptionValue || !value.includes(channelOtherOptionValue)) {
              onChange("channelAttributeCustom", "");
            }
          }}
        />
        {fieldErrors?.channelAttribute ? <p className="text-xs text-rose-500">{fieldErrors.channelAttribute}</p> : null}
      </label>
      {channelOtherOptionValue && (form.channelAttribute ?? []).includes(channelOtherOptionValue) ? (
        <label className="space-y-2">
          <span className="text-sm font-medium text-slate-700 dark:text-slate-300">其它渠道属性<RequiredMark /></span>
          <input
            value={form.channelAttributeCustom || ""}
            onChange={(e) => onChange("channelAttributeCustom", e.target.value)}
            placeholder="请输入具体渠道属性"
            className={getFieldInputClass(Boolean(fieldErrors?.channelAttributeCustom))}
          />
          {fieldErrors?.channelAttributeCustom ? <p className="text-xs text-rose-500">{fieldErrors.channelAttributeCustom}</p> : null}
        </label>
      ) : null}
      <label className="space-y-2">
        <span className="text-sm font-medium text-slate-700 dark:text-slate-300">新华三内部属性<RequiredMark /></span>
        <AdaptiveSelect
          multiple
          value={form.internalAttribute || []}
          placeholder="请选择"
          sheetTitle="新华三内部属性"
          options={internalAttributeOptions.map((option) => ({
            value: option.value ?? "",
            label: option.label || "无",
          }))}
          className={cn(
            fieldErrors?.internalAttribute ? "border-rose-400 bg-rose-50/60 focus:border-rose-500 focus:ring-rose-500 dark:border-rose-500/70 dark:bg-rose-500/10" : "",
          )}
          onChange={(value) => onChange("internalAttribute", value)}
        />
        {fieldErrors?.internalAttribute ? <p className="text-xs text-rose-500">{fieldErrors.internalAttribute}</p> : null}
      </label>
      <label className="flex items-center justify-between rounded-xl border border-slate-200 px-4 py-3 dark:border-slate-800">
        <span className="text-sm font-medium text-slate-700 dark:text-slate-300">以前是否做过云桌面项目</span>
        <input type="checkbox" checked={Boolean(form.hasDesktopExp)} onChange={(e) => onChange("hasDesktopExp", e.target.checked)} />
      </label>
      <div className="crm-form-section sm:col-span-2">
        <div className="crm-form-section-header">
          <span className="text-sm font-semibold text-slate-800 dark:text-slate-200">人员信息<RequiredMark /></span>
        </div>
        <ChannelContactRows
          contacts={form.contacts ?? []}
          invalidContactRows={invalidContactRows}
          onContactChange={(index, key, value) => handleChannelContactChange(index, key, value, isEdit)}
          wecomOptions={isOptions}
        />
        {fieldErrors?.contacts ? <p className="text-xs text-rose-500">{fieldErrors.contacts}</p> : null}
      </div>
      <label className="space-y-2 sm:col-span-2">
        <span className="text-sm font-medium text-slate-700 dark:text-slate-300">跟进的云桌面项目</span>
        <div className="rounded-xl border border-dashed border-slate-200 bg-slate-50 px-4 py-3 text-sm text-slate-500 dark:border-slate-800 dark:bg-slate-900/30 dark:text-slate-400">
          通过商机里的“关联渠道”自动带入项目编码、项目名称和项目金额。
        </div>
      </label>
      <label className="space-y-2 sm:col-span-2">
        <span className="text-sm font-medium text-slate-700 dark:text-slate-300">备注说明</span>
        <textarea rows={4} value={form.remark} onChange={(e) => onChange("remark", e.target.value)} className="crm-input-box crm-input-text w-full border border-slate-200 bg-white outline-none focus:border-violet-500 focus:ring-1 focus:ring-violet-500 dark:border-slate-800 dark:bg-slate-900/50" />
      </label>
    </div>
  );
  };

  const renderCrmForm = (
    form: CreateCrmExpansionPayload,
    onChange: <K extends keyof CreateCrmExpansionPayload>(key: K, value: CreateCrmExpansionPayload[K]) => void,
    fieldErrors?: Partial<Record<keyof CreateCrmExpansionPayload, string>>,
    isEdit = false,
    invalidContactRows: number[] = [],
  ) => (
    <div className="crm-form-grid">
      <label className="space-y-2">
        <span className="text-sm font-medium text-slate-700 dark:text-slate-300">最终用户<RequiredMark /></span>
        <input value={form.endUser} onChange={(e) => onChange("endUser", e.target.value)} className={getFieldInputClass(Boolean(fieldErrors?.endUser))} />
        {fieldErrors?.endUser ? <p className="text-xs text-rose-500">{fieldErrors.endUser}</p> : null}
      </label>
      <label className="space-y-2">
        <span className="text-sm font-medium text-slate-700 dark:text-slate-300">代表处<RequiredMark /></span>
        <AdaptiveSelect
          value={form.officeName || ""}
          placeholder="请选择"
          sheetTitle="代表处"
          searchable
          searchPlaceholder="搜索代表处"
          options={[
            { value: "", label: "请选择" },
            ...officeOptions.map((option) => ({
              value: option.value ?? "",
              label: option.label || "无",
            })),
          ]}
          className={cn(fieldErrors?.officeName ? "border-rose-400 bg-rose-50/60 focus:border-rose-500 focus:ring-rose-500 dark:border-rose-500/70 dark:bg-rose-500/10" : "")}
          onChange={(value) => onChange("officeName", value || "")}
        />
        {fieldErrors?.officeName ? <p className="text-xs text-rose-500">{fieldErrors.officeName}</p> : null}
      </label>
      <label className="space-y-2">
        <span className="text-sm font-medium text-slate-700 dark:text-slate-300">行业属性<RequiredMark /></span>
        <AdaptiveSelect
          multiple
          value={form.industryAttr || []}
          placeholder="请选择"
          sheetTitle="行业属性"
          options={industryOptions.map((option) => ({
            value: option.value ?? "",
            label: option.label || "无",
          }))}
          className={cn(fieldErrors?.industryAttr ? "border-rose-400 bg-rose-50/60 focus:border-rose-500 focus:ring-rose-500 dark:border-rose-500/70 dark:bg-rose-500/10" : "")}
          onChange={(value) => onChange("industryAttr", value)}
        />
        {fieldErrors?.industryAttr ? <p className="text-xs text-rose-500">{fieldErrors.industryAttr}</p> : null}
      </label>
      <label className="space-y-2">
        <span className="text-sm font-medium text-slate-700 dark:text-slate-300">类型<RequiredMark /></span>
        <AdaptiveSelect
          multiple
          value={form.extensionType || []}
          placeholder="请选择"
          sheetTitle="类型"
          options={extensionTypeOptions.map((option) => ({
            value: option.value ?? "",
            label: option.label || "无",
          }))}
          className={cn(fieldErrors?.extensionType ? "border-rose-400 bg-rose-50/60 focus:border-rose-500 focus:ring-rose-500 dark:border-rose-500/70 dark:bg-rose-500/10" : "")}
          onChange={(value) => onChange("extensionType", value)}
        />
        {fieldErrors?.extensionType ? <p className="text-xs text-rose-500">{fieldErrors.extensionType}</p> : null}
      </label>
      <label className="space-y-2">
        <span className="text-sm font-medium text-slate-700 dark:text-slate-300">软件点数<RequiredMark /></span>
        <input
          type="number"
          min={0}
          value={form.softwarePoints ?? ""}
          onChange={(e) => onChange("softwarePoints", e.target.value === "" ? undefined : Number(e.target.value))}
          placeholder="请输入软件点数"
          className={getFieldInputClass(Boolean(fieldErrors?.softwarePoints))}
        />
        {fieldErrors?.softwarePoints ? <p className="text-xs text-rose-500">{fieldErrors.softwarePoints}</p> : null}
      </label>
      <label className="space-y-2">
        <span className="text-sm font-medium text-slate-700 dark:text-slate-300">采购时间<RequiredMark /></span>
        <input type="date" value={form.purchaseDate} onChange={(e) => onChange("purchaseDate", e.target.value)} className={getFieldInputClass(Boolean(fieldErrors?.purchaseDate))} />
        {fieldErrors?.purchaseDate ? <p className="text-xs text-rose-500">{fieldErrors.purchaseDate}</p> : null}
      </label>
      <label className="space-y-2">
        <span className="text-sm font-medium text-slate-700 dark:text-slate-300">过保时间<RequiredMark /></span>
        <input type="date" value={form.warrantyExpiry} onChange={(e) => onChange("warrantyExpiry", e.target.value)} className={getFieldInputClass(Boolean(fieldErrors?.warrantyExpiry))} />
        {fieldErrors?.warrantyExpiry ? <p className="text-xs text-rose-500">{fieldErrors.warrantyExpiry}</p> : null}
      </label>
      <label className="space-y-2">
        <span className="text-sm font-medium text-slate-700 dark:text-slate-300">在线情况<RequiredMark /></span>
        <AdaptiveSelect
          value={form.onlineStatus || ""}
          placeholder="请选择"
          sheetTitle="在线情况"
          options={[
            { value: "", label: "请选择" },
            ...onlineStatusOptions.map((option) => ({
              value: option.value ?? "",
              label: option.label || "无",
            })),
          ]}
          className={cn(fieldErrors?.onlineStatus ? "border-rose-400 bg-rose-50/60 focus:border-rose-500 focus:ring-rose-500 dark:border-rose-500/70 dark:bg-rose-500/10" : "")}
          onChange={(value) => onChange("onlineStatus", value || "")}
        />
        {fieldErrors?.onlineStatus ? <p className="text-xs text-rose-500">{fieldErrors.onlineStatus}</p> : null}
      </label>
      <div className="crm-form-section sm:col-span-2">
        <div className="crm-form-section-header">
          <span className="text-sm font-semibold text-slate-800 dark:text-slate-200">联系人信息<RequiredMark /></span>
          <button type="button" onClick={() => addCrmContact(isEdit)} className="rounded-lg bg-white px-3 py-1.5 text-xs font-medium text-violet-600 shadow-sm dark:bg-slate-800 dark:text-violet-400">
            添加联系人
          </button>
        </div>
        <div className="crm-section-stack">
          {(form.contacts ?? []).map((contact, index) => (
            <div key={`${isEdit ? "edit" : "create"}-${index}`} className="grid grid-cols-1 gap-3 rounded-xl border border-slate-200 bg-white p-3 sm:grid-cols-[1fr_1fr_1fr_auto] dark:border-slate-700 dark:bg-slate-900/50">
              <input value={contact.name || ""} onChange={(e) => handleCrmContactChange(index, "name", e.target.value, isEdit)} placeholder="联系人姓名" className={cn("w-full rounded-lg border bg-white px-3 py-2 text-sm outline-none focus:border-violet-500 focus:ring-1 focus:ring-violet-500 dark:bg-slate-900/50", invalidContactRows.includes(index) ? "border-rose-400 bg-rose-50/60 focus:border-rose-500 focus:ring-rose-500 dark:border-rose-500/70 dark:bg-rose-500/10" : "border-slate-200 dark:border-slate-800")} />
              <input value={contact.mobile || ""} onChange={(e) => handleCrmContactChange(index, "mobile", e.target.value, isEdit)} placeholder="联系人电话" className={cn("w-full rounded-lg border bg-white px-3 py-2 text-sm outline-none focus:border-violet-500 focus:ring-1 focus:ring-violet-500 dark:bg-slate-900/50", invalidContactRows.includes(index) ? "border-rose-400 bg-rose-50/60 focus:border-rose-500 focus:ring-rose-500 dark:border-rose-500/70 dark:bg-rose-500/10" : "border-slate-200 dark:border-slate-800")} />
              <input value={contact.title || ""} onChange={(e) => handleCrmContactChange(index, "title", e.target.value, isEdit)} placeholder="联系人职位" className={cn("w-full rounded-lg border bg-white px-3 py-2 text-sm outline-none focus:border-violet-500 focus:ring-1 focus:ring-violet-500 dark:bg-slate-900/50", invalidContactRows.includes(index) ? "border-rose-400 bg-rose-50/60 focus:border-rose-500 focus:ring-rose-500 dark:border-rose-500/70 dark:bg-rose-500/10" : "border-slate-200 dark:border-slate-800")} />
              <button type="button" onClick={() => removeCrmContact(index, isEdit)} className="crm-btn-danger rounded-lg px-3 py-2 text-sm font-medium">
                删除
              </button>
            </div>
          ))}
        </div>
        {fieldErrors?.contacts ? <p className="text-xs text-rose-500">{fieldErrors.contacts}</p> : null}
      </div>
      <label className="space-y-2">
        <span className="text-sm font-medium text-slate-700 dark:text-slate-300">进货商<RequiredMark /></span>
        <SearchOrInputSelect
          valueId={form.supplierId}
          valueText={form.supplierName || ""}
          options={supplierChannelSearchOptions}
          placeholder="请选择进货商（来自渠道拓展）"
          searchPlaceholder="搜索渠道名称，或直接输入文字"
          emptyText="未找到匹配的渠道"
          loading={loadingSupplierChannelOptions}
          className={cn(fieldErrors?.supplierId ? "border-rose-400 bg-rose-50/60 focus:border-rose-500 focus:ring-rose-500 dark:border-rose-500/70 dark:bg-rose-500/10" : "")}
          onChange={(id, text) => {
            onChange("supplierId", id || 0);
            onChange("supplierName", text || "");
          }}
          onQueryChange={setSupplierChannelQuery}
        />
        {fieldErrors?.supplierId ? <p className="text-xs text-rose-500">{fieldErrors.supplierId}</p> : null}
      </label>
      <label className="space-y-2">
        <span className="text-sm font-medium text-slate-700 dark:text-slate-300">新华三对接人<RequiredMark /></span>
        <SearchOrInputSelect
          valueId={form.h3cContactId}
          valueText={form.h3cContactName || ""}
          options={supplierSalesSearchOptions}
          placeholder="请选择新华三对接人（来自销售拓展）"
          searchPlaceholder="搜索姓名或工号，或直接输入文字"
          emptyText="未找到匹配的销售拓展人员"
          loading={loadingSupplierSalesOptions}
          className={cn(fieldErrors?.h3cContactId ? "border-rose-400 bg-rose-50/60 focus:border-rose-500 focus:ring-rose-500 dark:border-rose-500/70 dark:bg-rose-500/10" : "")}
          onChange={(id, text) => {
            onChange("h3cContactId", id || 0);
            onChange("h3cContactName", text || "");
          }}
          onQueryChange={setSupplierSalesQuery}
        />
        {fieldErrors?.h3cContactId ? <p className="text-xs text-rose-500">{fieldErrors.h3cContactId}</p> : null}
      </label>
      <label className="space-y-2">
        <span className="text-sm font-medium text-slate-700 dark:text-slate-300">是否有扩容机会<RequiredMark /></span>
        <AdaptiveSelect
          value={form.hasExpansionOpportunity || ""}
          placeholder="请选择"
          sheetTitle="是否有扩容机会"
          options={[
            { value: "", label: "请选择" },
            ...isOptions.map((option) => ({
              value: option.value ?? "",
              label: option.label || "无",
            })),
          ]}
          className={cn(fieldErrors?.hasExpansionOpportunity ? "border-rose-400 bg-rose-50/60 focus:border-rose-500 focus:ring-rose-500 dark:border-rose-500/70 dark:bg-rose-500/10" : "")}
          onChange={(value) => onChange("hasExpansionOpportunity", value || "")}
        />
        {fieldErrors?.hasExpansionOpportunity ? <p className="text-xs text-rose-500">{fieldErrors.hasExpansionOpportunity}</p> : null}
      </label>
      {form.hasExpansionOpportunity === "1" ? (
        <>
          <label className="space-y-2">
            <span className="text-sm font-medium text-slate-700 dark:text-slate-300">扩容时间<RequiredMark /></span>
            <input type="date" value={form.expansionTime} onChange={(e) => onChange("expansionTime", e.target.value)} className={getFieldInputClass(Boolean(fieldErrors?.expansionTime))} />
            {fieldErrors?.expansionTime ? <p className="text-xs text-rose-500">{fieldErrors.expansionTime}</p> : null}
          </label>
          <label className="space-y-2">
            <span className="text-sm font-medium text-slate-700 dark:text-slate-300">扩容规模<RequiredMark /></span>
            <input value={form.expansionScale || ""} onChange={(e) => onChange("expansionScale", e.target.value)} placeholder="请输入扩容规模" className={getFieldInputClass(Boolean(fieldErrors?.expansionScale))} />
            {fieldErrors?.expansionScale ? <p className="text-xs text-rose-500">{fieldErrors.expansionScale}</p> : null}
          </label>
        </>
      ) : null}
      <label className="space-y-2">
        <span className="text-sm font-medium text-slate-700 dark:text-slate-300">是否有维保项目机会<RequiredMark /></span>
        <AdaptiveSelect
          value={form.hasMaintenanceOpportunity || ""}
          placeholder="请选择"
          sheetTitle="是否有维保项目机会"
          options={[
            { value: "", label: "请选择" },
            ...isOptions.map((option) => ({
              value: option.value ?? "",
              label: option.label || "无",
            })),
          ]}
          className={cn(fieldErrors?.hasMaintenanceOpportunity ? "border-rose-400 bg-rose-50/60 focus:border-rose-500 focus:ring-rose-500 dark:border-rose-500/70 dark:bg-rose-500/10" : "")}
          onChange={(value) => onChange("hasMaintenanceOpportunity", value || "")}
        />
        {fieldErrors?.hasMaintenanceOpportunity ? <p className="text-xs text-rose-500">{fieldErrors.hasMaintenanceOpportunity}</p> : null}
      </label>
    </div>
  );

  return (
    <div className="crm-page-stack">
      <header className="crm-page-header">
        <div className="crm-page-heading">
          <h1 className="crm-page-title">拓展管理</h1>
        </div>
        <div className="flex items-center gap-2">
          <button
            onClick={() => {
              setExportError("");
              setExportFilterOpen(true);
            }}
            disabled={exporting}
            className={cn("crm-btn-sm crm-btn-secondary flex items-center gap-2 disabled:cursor-not-allowed disabled:opacity-60", disableMobileMotion ? "active:scale-100" : "active:scale-95")}
          >
            <Download className="crm-icon-md" />
            <span className="hidden sm:inline">{exporting ? "导出中..." : "导出"}</span>
          </button>
          {canCreateExpansion ? (
            <button
              onClick={handleOpenCreate}
              className={cn("crm-btn-sm crm-btn-primary flex items-center gap-2", disableMobileMotion ? "active:scale-100" : "active:scale-95")}
            >
              <Plus className="crm-icon-md" />
              <span className="hidden sm:inline">新增</span>
            </button>
          ) : null}
        </div>
      </header>

      <div className={cn("crm-filter-bar flex", !disableMobileMotion && "backdrop-blur-sm")}>
        <button
          onClick={() => handleTabChange("sales")}
          className={`flex-1 rounded-lg py-2 text-sm font-medium transition-colors duration-200 ${
            activeTab === "sales" ? "bg-white text-violet-600 shadow-sm dark:bg-slate-800 dark:text-violet-400" : "text-slate-600 hover:text-slate-900 dark:text-slate-400 dark:hover:text-white"
          }`}
        >
          销售人员拓展
        </button>
        <button
          onClick={() => handleTabChange("channel")}
          className={`flex-1 rounded-lg py-2 text-sm font-medium transition-colors duration-200 ${
            activeTab === "channel" ? "bg-white text-violet-600 shadow-sm dark:bg-slate-800 dark:text-violet-400" : "text-slate-600 hover:text-slate-900 dark:text-slate-400 dark:hover:text-white"
          }`}
        >
          渠道拓展
        </button>
        <button
          onClick={() => handleTabChange("crm")}
          className={`flex-1 rounded-lg py-2 text-sm font-medium transition-colors duration-200 ${
            activeTab === "crm" ? "bg-white text-violet-600 shadow-sm dark:bg-slate-800 dark:text-violet-400" : "text-slate-600 hover:text-slate-900 dark:text-slate-400 dark:hover:text-white"
          }`}
        >
          CRM拓展
        </button>
      </div>

      <div className="group relative">
        <Search className="absolute left-3 top-1/2 h-4 w-4 -translate-y-1/2 text-slate-400 transition-colors group-focus-within:text-violet-500" />
        <input
          type="text"
          placeholder="搜索工号、姓名、渠道名称、行业..."
          value={keyword}
          onChange={(event) => {
            setKeyword(event.target.value);
            setExportError("");
          }}
          className="crm-input-box crm-input-text w-full border border-slate-200 bg-white pl-10 text-slate-900 outline-none transition-all focus:border-violet-500 focus:ring-1 focus:ring-violet-500 dark:border-slate-800 dark:bg-slate-900/50 dark:text-white"
        />
      </div>

      {exportError ? <div className="crm-alert crm-alert-error">{exportError}</div> : null}

      <div className="crm-list-stack">
        {activeTab === "sales" ? (
          salesData.length > 0 ? (
            salesData.slice(0, visibleItemCount).map((item, i) => {
              const isOwnedByCurrentUser = currentUserId !== undefined && item.ownerUserId === currentUserId;
              return (
                <motion.div
                  initial={disableMobileMotion ? false : { opacity: 0, y: 10 }}
                  animate={{ opacity: 1, y: 0 }}
                  transition={disableMobileMotion ? { duration: 0 } : { delay: i * 0.05 }}
                  key={item.id}
                  onClick={() => handleSelectItem(item)}
                  className={cn(
                    "crm-card crm-card-pad relative rounded-2xl transition-shadow transition-colors",
                    isOwnedByCurrentUser
                      ? "cursor-pointer hover:border-violet-100 hover:shadow-md dark:hover:border-violet-900/50"
                      : "cursor-pointer border-slate-100 bg-slate-50/45 hover:border-slate-200 hover:shadow-sm dark:border-slate-800/80 dark:bg-slate-900/35 dark:hover:border-slate-700",
                  )}
                >
                  {isOwnedByCurrentUser ? (
                    <div className="pointer-events-none absolute inset-x-5 top-0 h-1.5 rounded-b-full bg-gradient-to-r from-violet-400/85 via-fuchsia-400/70 to-indigo-400/85 shadow-[0_6px_16px_rgba(124,58,237,0.18)] dark:from-violet-400/70 dark:via-fuchsia-400/55 dark:to-indigo-400/70" />
                  ) : null}
                  <div className="flex items-start gap-3">
                    <div className="min-w-0 flex-1">
                      <h3 className="break-anywhere text-base font-semibold text-slate-900 dark:text-white sm:text-lg">{item.name || "无"}</h3>
                      <p className="break-anywhere mt-1 text-xs leading-5 text-slate-500 dark:text-slate-400 sm:text-sm">{item.officeName || "无"} · {item.dept || "无"} · {item.title || "无"}</p>
                      <div className="mt-2 flex flex-wrap items-center gap-2">
                        <span
                          className={cn(
                            "rounded-full border px-2.5 py-1 text-[11px] font-semibold leading-none",
                            isOwnedByCurrentUser
                              ? "border-emerald-200 bg-emerald-50 text-emerald-600 dark:border-emerald-500/20 dark:bg-emerald-500/10 dark:text-emerald-300"
                              : "border-slate-200 bg-slate-50 text-slate-500 dark:border-slate-700 dark:bg-slate-800/60 dark:text-slate-300",
                          )}
                        >
                          {isOwnedByCurrentUser ? "我的" : "只读"}
                        </span>
                        <span className={`crm-pill shrink-0 ${item.active ? "crm-pill-emerald" : "crm-pill-neutral"}`}>
                          {item.active ? "在职" : "离职"}
                        </span>
                      </div>
                    </div>
                  </div>
              <div className="mt-4 grid grid-cols-1 gap-y-3 text-xs sm:grid-cols-2 sm:text-sm">
                <div className="flex items-center gap-2 text-slate-600 dark:text-slate-300">
                  <span className="text-slate-400 dark:text-slate-500">意向:</span>
                  <span className={item.intent === "高" ? "font-medium text-rose-600 dark:text-rose-400" : ""}>{item.intent || "无"}</span>
                </div>
                <div className="flex items-center gap-2 text-slate-600 dark:text-slate-300">
                  <span className="text-slate-400 dark:text-slate-500">跟进项目金额:</span>
                  {formatRelatedProjectAmount(item.relatedProjects)}
                </div>
                <div className="flex items-center gap-2 text-slate-600 dark:text-slate-300">
                  <span className="text-slate-400 dark:text-slate-500">创建人:</span>
                  <span className="font-medium text-slate-900 dark:text-white">{item.owner || "无"}</span>
                </div>
              </div>
                </motion.div>
              );
            })
          ) : renderEmpty()
        ) : activeTab === "crm" ? (
          crmData.length > 0 ? (
            crmData.slice(0, visibleItemCount).map((item, i) => {
              const isOwnedByCurrentUser = currentUserId !== undefined && item.ownerUserId === currentUserId;
              return (
                <motion.div
                  initial={disableMobileMotion ? false : { opacity: 0, y: 10 }}
                  animate={{ opacity: 1, y: 0 }}
                  transition={disableMobileMotion ? { duration: 0 } : { delay: i * 0.05 }}
                  key={item.id}
                  onClick={() => handleSelectItem(item)}
                  className={cn(
                    "crm-card crm-card-pad relative rounded-2xl transition-shadow transition-colors",
                    isOwnedByCurrentUser
                      ? "cursor-pointer hover:border-violet-100 hover:shadow-md dark:hover:border-violet-900/50"
                      : "cursor-pointer border-slate-100 bg-slate-50/45 hover:border-slate-200 hover:shadow-sm dark:border-slate-800/80 dark:bg-slate-900/35 dark:hover:border-slate-700",
                  )}
                >
                  {isOwnedByCurrentUser ? (
                    <div className="pointer-events-none absolute inset-x-5 top-0 h-1.5 rounded-b-full bg-gradient-to-r from-violet-400/85 via-fuchsia-400/70 to-indigo-400/85 shadow-[0_6px_16px_rgba(124,58,237,0.18)] dark:from-violet-400/70 dark:via-fuchsia-400/55 dark:to-indigo-400/70" />
                  ) : null}
                  <div className="flex items-start gap-3">
                    <div className="min-w-0 flex-1">
                      <h3 className="break-anywhere text-base font-semibold text-slate-900 dark:text-white sm:text-lg">{item.endUser || "无"}</h3>
                      <p className="break-anywhere mt-1 text-xs leading-5 text-slate-500 dark:text-slate-400 sm:text-sm">{getDictLabelByValue(item.officeName, officeOptions) || "无"} · {item.industryAttr || "无"}</p>
                      <div className="mt-2 flex flex-wrap items-center gap-2">
                        <span
                          className={cn(
                            "rounded-full border px-2.5 py-1 text-[11px] font-semibold leading-none",
                            isOwnedByCurrentUser
                              ? "border-emerald-200 bg-emerald-50 text-emerald-600 dark:border-emerald-500/20 dark:bg-emerald-500/10 dark:text-emerald-300"
                              : "border-slate-200 bg-slate-50 text-slate-500 dark:border-slate-700 dark:bg-slate-800/60 dark:text-slate-300",
                          )}
                        >
                          {isOwnedByCurrentUser ? "我的" : "只读"}
                        </span>
                      </div>
                    </div>
                  </div>
              <div className="mt-4 grid grid-cols-1 gap-y-3 text-xs sm:grid-cols-2 sm:text-sm">
                <div className="flex items-center gap-2 text-slate-600 dark:text-slate-300">
                  <span className="text-slate-400 dark:text-slate-500">类型:</span>
                  <span>{item.extensionType || "无"}</span>
                </div>
                <div className="flex items-center gap-2 text-slate-600 dark:text-slate-300">
                  <span className="text-slate-400 dark:text-slate-500">在线情况:</span>
                  <span>{item.onlineStatus || "无"}</span>
                </div>
                <div className="flex items-center gap-2 text-slate-600 dark:text-slate-300">
                  <span className="text-slate-400 dark:text-slate-500">软件点数:</span>
                  <span>{item.softwarePoints == null ? "无" : String(item.softwarePoints)}</span>
                </div>
                <div className="flex items-center gap-2 text-slate-600 dark:text-slate-300">
                  <span className="text-slate-400 dark:text-slate-500">扩容时间:</span>
                  <span>{item.expansionTimeText || "无"}</span>
                </div>
                <div className="flex items-center gap-2 text-slate-600 dark:text-slate-300">
                  <span className="text-slate-400 dark:text-slate-500">扩容规模:</span>
                  <span>{item.expansionScale || "无"}</span>
                </div>
                <div className="flex items-center gap-2 text-slate-600 dark:text-slate-300">
                  <span className="text-slate-400 dark:text-slate-500">是否有维保项目机会:</span>
                  <span>{item.hasMaintenanceOpportunity === "1" ? "是" : item.hasMaintenanceOpportunity === "0" ? "否" : "无"}</span>
                </div>
                <div className="flex items-center gap-2 text-slate-600 dark:text-slate-300">
                  <span className="text-slate-400 dark:text-slate-500">创建人:</span>
                  <span className="font-medium text-slate-900 dark:text-white">{item.owner || "无"}</span>
                </div>
              </div>
                </motion.div>
              );
            })
          ) : renderEmpty()
        ) : (
          channelData.length > 0 ? (
            channelData.slice(0, visibleItemCount).map((item, i) => {
            const isOwnedByCurrentUser = currentUserId !== undefined && item.ownerUserId === currentUserId;
            return (
              <motion.div
                initial={disableMobileMotion ? false : { opacity: 0, y: 10 }}
                animate={{ opacity: 1, y: 0 }}
                transition={disableMobileMotion ? { duration: 0 } : { delay: i * 0.05 }}
                key={item.id}
                onClick={() => handleSelectItem(item)}
                className={cn(
                  "crm-card crm-card-pad relative rounded-2xl transition-shadow transition-colors",
                  isOwnedByCurrentUser
                    ? "cursor-pointer hover:border-violet-100 hover:shadow-md dark:hover:border-violet-900/50"
                    : "cursor-pointer border-slate-100 bg-slate-50/45 hover:border-slate-200 hover:shadow-sm dark:border-slate-800/80 dark:bg-slate-900/35 dark:hover:border-slate-700",
                )}
              >
                {isOwnedByCurrentUser ? (
                  <div className="pointer-events-none absolute inset-x-5 top-0 h-1.5 rounded-b-full bg-gradient-to-r from-violet-400/85 via-fuchsia-400/70 to-indigo-400/85 shadow-[0_6px_16px_rgba(124,58,237,0.18)] dark:from-violet-400/70 dark:via-fuchsia-400/55 dark:to-indigo-400/70" />
                ) : null}
                <div className="flex items-start gap-3">
                  <div className="min-w-0 flex-1">
                    <h3 className="break-anywhere text-base font-semibold text-slate-900 dark:text-white sm:text-lg">{item.name || "无"}</h3>
                    <p className="break-anywhere mt-1 text-xs leading-5 text-slate-500 dark:text-slate-400 sm:text-sm">
                      {item.province || "无"} · {item.city || "无"} · {item.certificationLevel || "无"}
                    </p>
                    <div className="mt-2 flex flex-wrap items-center gap-2">
                      <span
                        className={cn(
                          "rounded-full border px-2.5 py-1 text-[11px] font-semibold leading-none",
                          isOwnedByCurrentUser
                            ? "border-emerald-200 bg-emerald-50 text-emerald-600 dark:border-emerald-500/20 dark:bg-emerald-500/10 dark:text-emerald-300"
                            : "border-slate-200 bg-slate-50 text-slate-500 dark:border-slate-700 dark:bg-slate-800/60 dark:text-slate-300",
                        )}
                      >
                        {isOwnedByCurrentUser ? "我的" : "只读"}
                      </span>
                      <span className={`crm-pill shrink-0 ${item.intent === "高" ? "crm-pill-rose" : item.intent === "中" ? "crm-pill-amber" : "crm-pill-neutral"}`}>
                        {item.intent ? `${item.intent}意向` : "未评估"}
                      </span>
                    </div>
                  </div>
                </div>
              <div className="mt-4 grid grid-cols-1 gap-y-3 text-xs sm:grid-cols-2 sm:text-sm">
                <div className="flex items-center gap-2 text-slate-600 dark:text-slate-300">
                  <span className="text-slate-400 dark:text-slate-500">建立联系:</span>
                  {item.establishedDate || "无"}
                </div>
                <div className="flex items-center gap-2 text-slate-600 dark:text-slate-300">
                  <span className="text-slate-400 dark:text-slate-500">跟进项目金额:</span>
                  {formatRelatedProjectAmount(item.relatedProjects)}
                </div>
                <div className="flex items-center gap-2 text-slate-600 dark:text-slate-300">
                  <span className="text-slate-400 dark:text-slate-500">创建人:</span>
                  <span className="font-medium text-slate-900 dark:text-white">{item.owner || "无"}</span>
                </div>
              </div>
              </motion.div>
            );
          })
        ) : renderEmpty())}
        {loadMoreError ? (
          <div className="rounded-lg border border-rose-200 bg-rose-50 py-3 text-center text-sm font-medium text-rose-600 dark:border-rose-500/20 dark:bg-rose-500/10 dark:text-rose-300">
            {loadMoreError}
          </div>
        ) : null}
        {hasMoreItems ? (
          <div
            ref={loadMoreRef}
            role="button"
            tabIndex={0}
            onClick={() => void loadMoreItems()}
            onKeyDown={(event) => {
              if (event.key === "Enter" || event.key === " ") {
                event.preventDefault();
                void loadMoreItems();
              }
            }}
            className="cursor-pointer rounded-lg border border-slate-200 bg-white py-3 text-center text-sm font-medium text-violet-600 shadow-sm dark:border-slate-700 dark:bg-slate-900 dark:text-violet-300"
          >
            {loadingMore ? "加载中..." : "展示更多"}
          </div>
        ) : null}
      </div>

      <AnimatePresence>
        {exportFilterOpen && (
          <ExpansionExportFilterModal
            activeTab={activeTab}
            initialFilters={applyDefaultRelatedProjectStageFilters(exportFilters, relatedProjectStageOptions)}
            exporting={exporting}
            exportError={exportError}
            officeOptions={officeOptions}
            industryOptions={industryOptions}
            provinceOptions={provinceOptions}
            certificationLevelOptions={certificationLevelOptions}
            channelAttributeOptions={channelAttributeOptions}
            relatedProjectStageOptions={relatedProjectStageOptions}
            isOptions={isOptions}
            onClose={() => setExportFilterOpen(false)}
            onConfirm={(filters) => void handleExport(filters)}
          />
        )}

        {createOpen && (
          <ModalShell
            title={`新增${activeTab === "sales" ? "销售人员拓展" : activeTab === "crm" ? "CRM拓展" : "渠道拓展"}`}
            subtitle="支持电脑和手机填写，提交后自动刷新列表。"
            onClose={resetCreateState}
            footer={(
              <div className="flex flex-col-reverse gap-3 sm:flex-row sm:justify-end">
                <button onClick={resetCreateState} className="crm-btn crm-btn-secondary">取消</button>
                <button onClick={() => void handleCreateSubmit()} disabled={submitting} className="crm-btn crm-btn-primary disabled:cursor-not-allowed disabled:opacity-60">{submitting ? "提交中..." : "确认新增"}</button>
              </div>
            )}
          >
            {activeTab === "sales" ? renderSalesForm(salesForm, handleSalesChange, salesCreateFieldErrors, false) : activeTab === "crm" ? renderCrmForm(crmForm, handleCrmChange, crmFieldErrors, false, invalidCreateCrmContactRows) : renderChannelForm(channelForm, handleChannelChange, false, channelCreateFieldErrors, invalidCreateChannelContactRows)}
            {createError ? <div className="crm-alert crm-alert-error mt-4">{createError}</div> : null}
          </ModalShell>
        )}
      </AnimatePresence>

      <AnimatePresence>
        {editOpen && selectedItem && (
          <ModalShell
            title={`编辑${selectedItem.type === "sales" ? "销售人员拓展" : selectedItem.type === "crm" ? "CRM拓展" : "渠道拓展"}`}
            subtitle="修改后会实时更新本人名下的拓展资料。"
            onClose={resetEditState}
            footer={(
              <div className="flex flex-col-reverse gap-3 sm:flex-row sm:justify-end">
                <button onClick={resetEditState} className="crm-btn crm-btn-secondary">取消</button>
                <button onClick={() => void handleEditSubmit()} disabled={submitting} className="crm-btn crm-btn-primary disabled:cursor-not-allowed disabled:opacity-60">{submitting ? "保存中..." : "保存修改"}</button>
              </div>
            )}
          >
            {selectedItem.type === "sales" ? renderSalesForm(editSalesForm, handleEditSalesChange, salesEditFieldErrors, true) : selectedItem.type === "crm" ? renderCrmForm(editCrmForm, handleEditCrmChange, editCrmFieldErrors, true, invalidEditCrmContactRows) : renderChannelForm(editChannelForm, handleEditChannelChange, true, channelEditFieldErrors, invalidEditChannelContactRows)}
            {editError ? <div className="crm-alert crm-alert-error mt-4">{editError}</div> : null}
          </ModalShell>
        )}
      </AnimatePresence>

      <AnimatePresence>
        {moveOpen && selectedItem && (
          <ModalShell
            title={selectedItem.type === "channel" ? "移至CRM拓展" : "移至渠道拓展"}
            subtitle={selectedItem.type === "channel" ? "将整条记录及关联跟进/打卡/日报迁移到CRM拓展，请先补填CRM必填字段。注意：该渠道关联的商机将在迁移后断开拓展关联，其它以该渠道为进货商的CRM记录也将失去进货商。" : "将整条记录及关联跟进/打卡/日报迁移到渠道拓展，请先补填渠道必填字段。"}
            onClose={resetMoveState}
            footer={(
              <div className="flex flex-col-reverse gap-3 sm:flex-row sm:justify-end">
                <button onClick={resetMoveState} className="crm-btn crm-btn-secondary">取消</button>
                <button onClick={() => void handleMoveSubmit()} disabled={moveSubmitting} className="crm-btn crm-btn-primary disabled:cursor-not-allowed disabled:opacity-60">{moveSubmitting ? "迁移中..." : "确认迁移"}</button>
              </div>
            )}
          >
            {selectedItem.type === "channel" ? (
              <div className="crm-form-grid">
                <label className="space-y-2 sm:col-span-2">
                  <span className="text-sm font-medium text-slate-700 dark:text-slate-300">最终用户（自动带入）</span>
                  <input value={selectedItem.name ?? ""} readOnly className="crm-input-box-readonly crm-input-text w-full border border-slate-200 bg-slate-50 text-slate-500 outline-none dark:border-slate-800 dark:bg-slate-900/30 dark:text-slate-400" />
                </label>
                <label className="space-y-2">
                  <span className="text-sm font-medium text-slate-700 dark:text-slate-300">代表处<RequiredMark /></span>
                  <AdaptiveSelect
                    value={moveChannelForm.officeName || ""}
                    placeholder="请选择"
                    sheetTitle="代表处"
                    searchable
                    searchPlaceholder="搜索代表处"
                    options={[
                      { value: "", label: "请选择" },
                      ...officeOptions.map((option) => ({
                        value: option.value ?? "",
                        label: option.label || "无",
                      })),
                    ]}
                    className={cn(moveChannelFieldErrors.officeName ? "border-rose-400 bg-rose-50/60 focus:border-rose-500 focus:ring-rose-500 dark:border-rose-500/70 dark:bg-rose-500/10" : "")}
                    onChange={(value) => setMoveChannelForm((current) => ({ ...current, officeName: value || "" }))}
                  />
                  {moveChannelFieldErrors.officeName ? <p className="text-xs text-rose-500">{moveChannelFieldErrors.officeName}</p> : null}
                </label>
                <label className="space-y-2">
                  <span className="text-sm font-medium text-slate-700 dark:text-slate-300">类型<RequiredMark /></span>
                  <AdaptiveSelect
                    multiple
                    value={moveChannelForm.extensionType || []}
                    placeholder="请选择"
                    sheetTitle="类型"
                    options={extensionTypeOptions.map((option) => ({
                      value: option.value ?? "",
                      label: option.label || "无",
                    }))}
                    className={cn(moveChannelFieldErrors.extensionType ? "border-rose-400 bg-rose-50/60 focus:border-rose-500 focus:ring-rose-500 dark:border-rose-500/70 dark:bg-rose-500/10" : "")}
                    onChange={(value) => setMoveChannelForm((current) => ({ ...current, extensionType: value }))}
                  />
                  {moveChannelFieldErrors.extensionType ? <p className="text-xs text-rose-500">{moveChannelFieldErrors.extensionType}</p> : null}
                </label>
                <label className="space-y-2">
                  <span className="text-sm font-medium text-slate-700 dark:text-slate-300">采购时间<RequiredMark /></span>
                  <input type="date" value={moveChannelForm.purchaseDate} onChange={(e) => setMoveChannelForm((current) => ({ ...current, purchaseDate: e.target.value, warrantyExpiry: addYearsToDate(e.target.value, 3) }))} className={getFieldInputClass(Boolean(moveChannelFieldErrors.purchaseDate))} />
                  {moveChannelFieldErrors.purchaseDate ? <p className="text-xs text-rose-500">{moveChannelFieldErrors.purchaseDate}</p> : null}
                </label>
                <label className="space-y-2">
                  <span className="text-sm font-medium text-slate-700 dark:text-slate-300">过保时间<RequiredMark /></span>
                  <input type="date" value={moveChannelForm.warrantyExpiry} onChange={(e) => setMoveChannelForm((current) => ({ ...current, warrantyExpiry: e.target.value }))} className={getFieldInputClass(Boolean(moveChannelFieldErrors.warrantyExpiry))} />
                  {moveChannelFieldErrors.warrantyExpiry ? <p className="text-xs text-rose-500">{moveChannelFieldErrors.warrantyExpiry}</p> : null}
                </label>
                <label className="space-y-2">
                  <span className="text-sm font-medium text-slate-700 dark:text-slate-300">在线情况<RequiredMark /></span>
                  <AdaptiveSelect
                    value={moveChannelForm.onlineStatus || ""}
                    placeholder="请选择"
                    sheetTitle="在线情况"
                    options={[
                      { value: "", label: "请选择" },
                      ...onlineStatusOptions.map((option) => ({
                        value: option.value ?? "",
                        label: option.label || "无",
                      })),
                    ]}
                    className={cn(moveChannelFieldErrors.onlineStatus ? "border-rose-400 bg-rose-50/60 focus:border-rose-500 focus:ring-rose-500 dark:border-rose-500/70 dark:bg-rose-500/10" : "")}
                    onChange={(value) => setMoveChannelForm((current) => ({ ...current, onlineStatus: value || "" }))}
                  />
                  {moveChannelFieldErrors.onlineStatus ? <p className="text-xs text-rose-500">{moveChannelFieldErrors.onlineStatus}</p> : null}
                </label>
                <label className="space-y-2">
                  <span className="text-sm font-medium text-slate-700 dark:text-slate-300">软件点数<RequiredMark /></span>
                  <input
                    type="number"
                    min={0}
                    value={moveChannelForm.softwarePoints ?? ""}
                    onChange={(e) => setMoveChannelForm((current) => ({ ...current, softwarePoints: e.target.value === "" ? undefined : Number(e.target.value) }))}
                    placeholder="请输入软件点数"
                    className={getFieldInputClass(Boolean(moveChannelFieldErrors.softwarePoints))}
                  />
                  {moveChannelFieldErrors.softwarePoints ? <p className="text-xs text-rose-500">{moveChannelFieldErrors.softwarePoints}</p> : null}
                </label>
                <label className="space-y-2">
                  <span className="text-sm font-medium text-slate-700 dark:text-slate-300">进货商<RequiredMark /></span>
                  <SearchOrInputSelect
                    valueId={moveChannelForm.supplierId}
                    valueText={moveChannelForm.supplierName || ""}
                    options={supplierChannelSearchOptions.filter((item) => String(item.value) !== String(selectedItem.id))}
                    placeholder="请选择进货商（来自渠道拓展）"
                    searchPlaceholder="搜索渠道名称，或直接输入文字"
                    emptyText="未找到匹配的渠道"
                    loading={loadingSupplierChannelOptions}
                    className={cn(moveChannelFieldErrors.supplierId ? "border-rose-400 bg-rose-50/60 focus:border-rose-500 focus:ring-rose-500 dark:border-rose-500/70 dark:bg-rose-500/10" : "")}
                    onChange={(id, text) => setMoveChannelForm((current) => ({ ...current, supplierId: id || 0, supplierName: text || "" }))}
                    onQueryChange={setSupplierChannelQuery}
                  />
                  {moveChannelFieldErrors.supplierId ? <p className="text-xs text-rose-500">{moveChannelFieldErrors.supplierId}</p> : null}
                </label>
                <label className="space-y-2">
                  <span className="text-sm font-medium text-slate-700 dark:text-slate-300">新华三对接人<RequiredMark /></span>
                  <SearchOrInputSelect
                    valueId={moveChannelForm.h3cContactId}
                    valueText={moveChannelForm.h3cContactName || ""}
                    options={supplierSalesSearchOptions}
                    placeholder="请选择新华三对接人（来自销售拓展）"
                    searchPlaceholder="搜索姓名或工号，或直接输入文字"
                    emptyText="未找到匹配的销售拓展人员"
                    loading={loadingSupplierSalesOptions}
                    className={cn(moveChannelFieldErrors.h3cContactId ? "border-rose-400 bg-rose-50/60 focus:border-rose-500 focus:ring-rose-500 dark:border-rose-500/70 dark:bg-rose-500/10" : "")}
                    onChange={(id, text) => setMoveChannelForm((current) => ({ ...current, h3cContactId: id || 0, h3cContactName: text || "" }))}
                    onQueryChange={setSupplierSalesQuery}
                  />
                  {moveChannelFieldErrors.h3cContactId ? <p className="text-xs text-rose-500">{moveChannelFieldErrors.h3cContactId}</p> : null}
                </label>
                <label className="space-y-2">
                  <span className="text-sm font-medium text-slate-700 dark:text-slate-300">是否有扩容机会<RequiredMark /></span>
                  <AdaptiveSelect
                    value={moveChannelForm.hasExpansionOpportunity || ""}
                    placeholder="请选择"
                    sheetTitle="是否有扩容机会"
                    options={[
                      { value: "", label: "请选择" },
                      ...isOptions.map((option) => ({
                        value: option.value ?? "",
                        label: option.label || "无",
                      })),
                    ]}
                    className={cn(moveChannelFieldErrors.hasExpansionOpportunity ? "border-rose-400 bg-rose-50/60 focus:border-rose-500 focus:ring-rose-500 dark:border-rose-500/70 dark:bg-rose-500/10" : "")}
                    onChange={(value) => setMoveChannelForm((current) => ({ ...current, hasExpansionOpportunity: value || "" }))}
                  />
                  {moveChannelFieldErrors.hasExpansionOpportunity ? <p className="text-xs text-rose-500">{moveChannelFieldErrors.hasExpansionOpportunity}</p> : null}
                </label>
                {moveChannelForm.hasExpansionOpportunity === "1" ? (
                  <>
                    <label className="space-y-2">
                      <span className="text-sm font-medium text-slate-700 dark:text-slate-300">扩容时间<RequiredMark /></span>
                      <input type="date" value={moveChannelForm.expansionTime || ""} onChange={(e) => setMoveChannelForm((current) => ({ ...current, expansionTime: e.target.value }))} className={getFieldInputClass(Boolean(moveChannelFieldErrors.expansionTime))} />
                      {moveChannelFieldErrors.expansionTime ? <p className="text-xs text-rose-500">{moveChannelFieldErrors.expansionTime}</p> : null}
                    </label>
                    <label className="space-y-2">
                      <span className="text-sm font-medium text-slate-700 dark:text-slate-300">扩容规模<RequiredMark /></span>
                      <input value={moveChannelForm.expansionScale || ""} onChange={(e) => setMoveChannelForm((current) => ({ ...current, expansionScale: e.target.value }))} placeholder="请输入扩容规模" className={getFieldInputClass(Boolean(moveChannelFieldErrors.expansionScale))} />
                      {moveChannelFieldErrors.expansionScale ? <p className="text-xs text-rose-500">{moveChannelFieldErrors.expansionScale}</p> : null}
                    </label>
                  </>
                ) : null}
                <label className="space-y-2">
                  <span className="text-sm font-medium text-slate-700 dark:text-slate-300">是否有维保项目机会<RequiredMark /></span>
                  <AdaptiveSelect
                    value={moveChannelForm.hasMaintenanceOpportunity || ""}
                    placeholder="请选择"
                    sheetTitle="是否有维保项目机会"
                    options={[
                      { value: "", label: "请选择" },
                      ...isOptions.map((option) => ({
                        value: option.value ?? "",
                        label: option.label || "无",
                      })),
                    ]}
                    className={cn(moveChannelFieldErrors.hasMaintenanceOpportunity ? "border-rose-400 bg-rose-50/60 focus:border-rose-500 focus:ring-rose-500 dark:border-rose-500/70 dark:bg-rose-500/10" : "")}
                    onChange={(value) => setMoveChannelForm((current) => ({ ...current, hasMaintenanceOpportunity: value || "" }))}
                  />
                  {moveChannelFieldErrors.hasMaintenanceOpportunity ? <p className="text-xs text-rose-500">{moveChannelFieldErrors.hasMaintenanceOpportunity}</p> : null}
                </label>
                <div className="crm-form-section sm:col-span-2">
                  <div className="crm-form-section-header">
                    <span className="text-sm font-semibold text-slate-800 dark:text-slate-200">联系人信息<RequiredMark /></span>
                    <button type="button" onClick={addMoveCrmContact} className="rounded-lg bg-white px-3 py-1.5 text-xs font-medium text-violet-600 shadow-sm dark:bg-slate-800 dark:text-violet-400">
                      添加联系人
                    </button>
                  </div>
                  <div className="crm-section-stack">
                    {(moveChannelForm.contacts ?? []).map((contact, index) => (
                      <div key={`move-${index}`} className="grid grid-cols-1 gap-3 rounded-xl border border-slate-200 bg-white p-3 sm:grid-cols-[1fr_1fr_1fr_auto] dark:border-slate-700 dark:bg-slate-900/50">
                        <input value={contact.name || ""} onChange={(e) => handleMoveCrmContactChange(index, "name", e.target.value)} placeholder="联系人姓名" className={cn("w-full rounded-lg border bg-white px-3 py-2 text-sm outline-none focus:border-violet-500 focus:ring-1 focus:ring-violet-500 dark:bg-slate-900/50", invalidMoveCrmContactRows.includes(index) ? "border-rose-400 bg-rose-50/60 focus:border-rose-500 focus:ring-rose-500 dark:border-rose-500/70 dark:bg-rose-500/10" : "border-slate-200 dark:border-slate-800")} />
                        <input value={contact.mobile || ""} onChange={(e) => handleMoveCrmContactChange(index, "mobile", e.target.value)} placeholder="联系人电话" className={cn("w-full rounded-lg border bg-white px-3 py-2 text-sm outline-none focus:border-violet-500 focus:ring-1 focus:ring-violet-500 dark:bg-slate-900/50", invalidMoveCrmContactRows.includes(index) ? "border-rose-400 bg-rose-50/60 focus:border-rose-500 focus:ring-rose-500 dark:border-rose-500/70 dark:bg-rose-500/10" : "border-slate-200 dark:border-slate-800")} />
                        <input value={contact.title || ""} onChange={(e) => handleMoveCrmContactChange(index, "title", e.target.value)} placeholder="联系人职位" className={cn("w-full rounded-lg border bg-white px-3 py-2 text-sm outline-none focus:border-violet-500 focus:ring-1 focus:ring-violet-500 dark:bg-slate-900/50", invalidMoveCrmContactRows.includes(index) ? "border-rose-400 bg-rose-50/60 focus:border-rose-500 focus:ring-rose-500 dark:border-rose-500/70 dark:bg-rose-500/10" : "border-slate-200 dark:border-slate-800")} />
                        <button type="button" onClick={() => removeMoveCrmContact(index)} className="crm-btn-danger rounded-lg px-3 py-2 text-sm font-medium">
                          删除
                        </button>
                      </div>
                    ))}
                  </div>
                  {moveChannelFieldErrors.contacts ? <p className="text-xs text-rose-500">{moveChannelFieldErrors.contacts}</p> : null}
                </div>
              </div>
            ) : (
              <div className="crm-form-grid">
                <label className="space-y-2 sm:col-span-2">
                  <span className="text-sm font-medium text-slate-700 dark:text-slate-300">渠道名称（自动带入）</span>
                  <input value={selectedItem.endUser ?? ""} readOnly className="crm-input-box-readonly crm-input-text w-full border border-slate-200 bg-slate-50 text-slate-500 outline-none dark:border-slate-800 dark:bg-slate-900/30 dark:text-slate-400" />
                </label>
                <ChannelAddressField
                  value={{
                    // 优先取用户在表单里实际已选的省份，否则从源 CRM 代表处反查 label 作初始展示
                    province:
                      moveCrmForm.province ||
                      officeOptions.find((option) => option.value === selectedItem.officeName)?.label ||
                      selectedItem.officeName ||
                      "",
                    city: moveCrmForm.city || "",
                    officeAddress: moveCrmForm.officeAddress || "",
                  }}
                  onChange={(address) =>
                    setMoveCrmForm((current) => ({
                      ...current,
                      province: address.province,
                      city: address.city,
                      officeAddress: address.officeAddress,
                    }))
                  }
                  provinceOptions={provinceOptions}
                  isEdit={false}
                  errors={moveCrmFieldErrors}
                  loadCityOptions={loadCityOptions}
                />
                <label className="space-y-2 sm:col-span-2">
                  <span className="text-sm font-medium text-slate-700 dark:text-slate-300">覆盖地市<RequiredMark /></span>
                  <CoverageCascaderSelect
                    value={{ provinces: moveCrmForm.coverageProvince ?? [], cities: moveCrmForm.coverageCity ?? [], items: moveCrmForm.coverageItems ?? [] }}
                    onChange={(next) =>
                      setMoveCrmForm((current) => ({
                        ...current,
                        coverageProvince: next.provinces,
                        coverageCity: next.cities,
                        coverageItems: next.items,
                      }))
                    }
                    provinceOptions={provinceOptions}
                    getCities={loadCityOptions}
                    isEdit={false}
                    hasError={Boolean(moveCrmFieldErrors.coverageProvince || moveCrmFieldErrors.coverageCity)}
                  />
                  {(moveCrmFieldErrors.coverageProvince || moveCrmFieldErrors.coverageCity) ? (
                    <p className="text-xs text-rose-500">{moveCrmFieldErrors.coverageProvince || moveCrmFieldErrors.coverageCity}</p>
                  ) : null}
                </label>
                <label className="space-y-2">
                  <span className="text-sm font-medium text-slate-700 dark:text-slate-300">汇智内部认证级别<RequiredMark /></span>
                  <AdaptiveSelect
                    value={moveCrmForm.certificationLevel || ""}
                    placeholder="请选择"
                    sheetTitle="汇智内部认证级别"
                    options={[
                      { value: "", label: "请选择" },
                      ...certificationLevelOptions.map((option) => ({
                        value: option.value ?? "",
                        label: option.label || "无",
                      })),
                    ]}
                    className={cn(moveCrmFieldErrors.certificationLevel ? "border-rose-400 bg-rose-50/60 focus:border-rose-500 focus:ring-rose-500 dark:border-rose-500/70 dark:bg-rose-500/10" : "")}
                    onChange={(value) => setMoveCrmForm((current) => ({ ...current, certificationLevel: value || "" }))}
                  />
                  {moveCrmFieldErrors.certificationLevel ? <p className="text-xs text-rose-500">{moveCrmFieldErrors.certificationLevel}</p> : null}
                </label>
                <label className="space-y-2">
                  <span className="text-sm font-medium text-slate-700 dark:text-slate-300">{CHANNEL_REVENUE_LABEL}<RequiredMark /></span>
                  <input
                    type="number"
                    min="0.01"
                    step="0.01"
                    placeholder="请输入万元"
                    value={moveCrmForm.annualRevenue ?? ""}
                    onChange={(e) => setMoveCrmForm((current) => ({ ...current, annualRevenue: e.target.value ? Number(e.target.value) : 0 }))}
                    className={getFieldInputClass(Boolean(moveCrmFieldErrors.annualRevenue))}
                  />
                  {moveCrmFieldErrors.annualRevenue ? <p className="text-xs text-rose-500">{moveCrmFieldErrors.annualRevenue}</p> : null}
                </label>
                <label className="space-y-2">
                  <span className="text-sm font-medium text-slate-700 dark:text-slate-300">人员规模<RequiredMark /></span>
                  <input type="number" min="1" step="1" value={moveCrmForm.staffSize ?? ""} onChange={(e) => setMoveCrmForm((current) => ({ ...current, staffSize: e.target.value ? Number(e.target.value) : 0 }))} className={getFieldInputClass(Boolean(moveCrmFieldErrors.staffSize))} />
                  {moveCrmFieldErrors.staffSize ? <p className="text-xs text-rose-500">{moveCrmFieldErrors.staffSize}</p> : null}
                </label>
                <label className="space-y-2">
                  <span className="text-sm font-medium text-slate-700 dark:text-slate-300">{CHANNEL_REGISTERED_CAPITAL_LABEL}<RequiredMark /></span>
                  <input
                    type="number"
                    min="0.01"
                    step="0.01"
                    placeholder="请输入万元"
                    value={moveCrmForm.registeredCapital ?? ""}
                    onChange={(e) => setMoveCrmForm((current) => ({ ...current, registeredCapital: e.target.value ? Number(e.target.value) : 0 }))}
                    className={getFieldInputClass(Boolean(moveCrmFieldErrors.registeredCapital))}
                  />
                  {moveCrmFieldErrors.registeredCapital ? <p className="text-xs text-rose-500">{moveCrmFieldErrors.registeredCapital}</p> : null}
                </label>
                <label className="space-y-2">
                  <span className="text-sm font-medium text-slate-700 dark:text-slate-300">渠道属性<RequiredMark /></span>
                  <AdaptiveSelect
                    multiple
                    value={moveCrmForm.channelAttribute || []}
                    placeholder="请选择"
                    sheetTitle="渠道属性"
                    options={channelAttributeOptions.map((option) => ({
                      value: option.value ?? "",
                      label: option.label || "无",
                    }))}
                    className={cn(moveCrmFieldErrors.channelAttribute ? "border-rose-400 bg-rose-50/60 focus:border-rose-500 focus:ring-rose-500 dark:border-rose-500/70 dark:bg-rose-500/10" : "")}
                    onChange={(value) => {
                      setMoveCrmForm((current) => ({ ...current, channelAttribute: value }));
                      if (!channelOtherOptionValue || !value.includes(channelOtherOptionValue)) {
                        setMoveCrmForm((current) => ({ ...current, channelAttributeCustom: "" }));
                      }
                    }}
                  />
                  {moveCrmFieldErrors.channelAttribute ? <p className="text-xs text-rose-500">{moveCrmFieldErrors.channelAttribute}</p> : null}
                </label>
                {channelOtherOptionValue && (moveCrmForm.channelAttribute ?? []).includes(channelOtherOptionValue) ? (
                  <label className="space-y-2">
                    <span className="text-sm font-medium text-slate-700 dark:text-slate-300">其它渠道属性<RequiredMark /></span>
                    <input
                      value={moveCrmForm.channelAttributeCustom || ""}
                      onChange={(e) => setMoveCrmForm((current) => ({ ...current, channelAttributeCustom: e.target.value }))}
                      placeholder="请输入具体渠道属性"
                      className={getFieldInputClass(false)}
                    />
                  </label>
                ) : null}
                <label className="space-y-2">
                  <span className="text-sm font-medium text-slate-700 dark:text-slate-300">新华三内部属性<RequiredMark /></span>
                  <AdaptiveSelect
                    multiple
                    value={moveCrmForm.internalAttribute || []}
                    placeholder="请选择"
                    sheetTitle="新华三内部属性"
                    options={internalAttributeOptions.map((option) => ({
                      value: option.value ?? "",
                      label: option.label || "无",
                    }))}
                    className={cn(moveCrmFieldErrors.internalAttribute ? "border-rose-400 bg-rose-50/60 focus:border-rose-500 focus:ring-rose-500 dark:border-rose-500/70 dark:bg-rose-500/10" : "")}
                    onChange={(value) => setMoveCrmForm((current) => ({ ...current, internalAttribute: value }))}
                  />
                  {moveCrmFieldErrors.internalAttribute ? <p className="text-xs text-rose-500">{moveCrmFieldErrors.internalAttribute}</p> : null}
                </label>
                <label className="space-y-2">
                  <span className="text-sm font-medium text-slate-700 dark:text-slate-300">合作意向<RequiredMark /></span>
                  <AdaptiveSelect
                    value={moveCrmForm.intentLevel || ""}
                    placeholder="请选择"
                    sheetTitle="合作意向"
                    options={[
                      { value: "high", label: "高" },
                      { value: "medium", label: "中" },
                      { value: "low", label: "低" },
                    ]}
                    className={cn(moveCrmFieldErrors.intentLevel ? "border-rose-400 bg-rose-50/60 focus:border-rose-500 focus:ring-rose-500 dark:border-rose-500/70 dark:bg-rose-500/10" : "")}
                    onChange={(value) => setMoveCrmForm((current) => ({ ...current, intentLevel: value || "" }))}
                  />
                  {moveCrmFieldErrors.intentLevel ? <p className="text-xs text-rose-500">{moveCrmFieldErrors.intentLevel}</p> : null}
                </label>
                <label className="flex items-center justify-between rounded-xl border border-slate-200 px-4 py-3 dark:border-slate-800">
                  <span className="text-sm font-medium text-slate-700 dark:text-slate-300">以前是否做过云桌面项目</span>
                  <input type="checkbox" checked={Boolean(moveCrmForm.hasDesktopExp)} onChange={(e) => setMoveCrmForm((current) => ({ ...current, hasDesktopExp: e.target.checked }))} />
                </label>
                <label className="space-y-2">
                  <span className="text-sm font-medium text-slate-700 dark:text-slate-300">预计签约时间</span>
                  <input type="date" value={moveCrmForm.expectedSignDate || ""} onChange={(e) => setMoveCrmForm((current) => ({ ...current, expectedSignDate: e.target.value }))} className="crm-input-box crm-input-text w-full border border-slate-200 bg-white outline-none focus:border-violet-500 focus:ring-1 focus:ring-violet-500 dark:border-slate-800 dark:bg-slate-900/50" />
                </label>
                <div className="crm-form-section sm:col-span-2">
                  <div className="crm-form-section-header">
                    <span className="text-sm font-semibold text-slate-800 dark:text-slate-200">联系人信息<RequiredMark /></span>
                  </div>
                  <ChannelContactRows
                    contacts={moveCrmForm.contacts ?? []}
                    invalidContactRows={invalidMoveChannelContactRows}
                    onContactChange={handleMoveChannelContactChange}
                    wecomOptions={isOptions}
                  />
                  {moveCrmFieldErrors.contacts ? <p className="text-xs text-rose-500">{moveCrmFieldErrors.contacts}</p> : null}
                </div>
              </div>
            )}
            {moveError ? <div className="crm-alert crm-alert-error mt-4">{moveError}</div> : null}
          </ModalShell>
        )}
      </AnimatePresence>

      <AnimatePresence>
        {selectedItem && (
          <>
            <motion.div
              initial={{ opacity: 0 }}
              animate={{ opacity: 1 }}
              exit={{ opacity: 0 }}
              onClick={() => setSelectedItem(null)}
              className={`fixed inset-0 z-40 bg-slate-900/20 backdrop-blur-sm transition-opacity dark:bg-slate-900/60 ${
                hasForegroundModal ? "pointer-events-none opacity-30" : ""
              }`}
            />
            <motion.div
              initial={{ x: "100%", y: 0 }}
              animate={{ x: 0, y: 0 }}
              exit={{ x: "100%", y: 0 }}
              transition={{ type: "spring", damping: 25, stiffness: 200 }}
              className={`fixed inset-x-0 bottom-0 z-50 flex h-[88dvh] w-full flex-col overflow-hidden rounded-t-3xl border border-slate-200 bg-white shadow-2xl transition-opacity dark:border-slate-800 dark:bg-slate-900 sm:inset-y-0 sm:right-0 sm:left-auto sm:h-full sm:max-w-2xl lg:max-w-5xl sm:rounded-none sm:rounded-l-3xl sm:border-l ${
                hasForegroundModal ? "pointer-events-none opacity-20" : ""
              }`}
            >
              <div className="flex items-center justify-between border-b border-slate-100 px-5 py-4 dark:border-slate-800 sm:px-6">
                <div className="flex items-center gap-3">
                  <div className="h-1.5 w-10 rounded-full bg-slate-200 sm:hidden dark:bg-slate-700" />
                  <h2 className="text-base font-semibold text-slate-900 dark:text-white sm:text-lg">{selectedItem.type === "sales" ? "销售拓展详情" : selectedItem.type === "crm" ? "CRM拓展详情" : "渠道拓展详情"}</h2>
                </div>
                  <button onClick={() => setSelectedItem(null)} className="rounded-full p-2 text-slate-400 transition-colors hover:bg-slate-100 dark:hover:bg-slate-800">
                    <X className="crm-icon-lg" />
                </button>
              </div>

              <div className="min-h-0 flex-1 overflow-y-auto px-5 py-5 sm:px-6">
                <div className="crm-modal-stack">
                <div>
                  {selectedItem.type === "sales" ? (
                    <p className="text-xs font-medium uppercase tracking-[0.18em] text-slate-400 dark:text-slate-500">工号 {selectedItem.employeeNo || "无"}</p>
                  ) : selectedItem.type === "crm" ? (
                    <p className="text-xs font-medium uppercase tracking-[0.18em] text-slate-400 dark:text-slate-500">CRM拓展</p>
                  ) : (
                    <p className="text-xs font-medium uppercase tracking-[0.18em] text-slate-400 dark:text-slate-500">{selectedItem.channelCode || "未编码"}</p>
                  )}
                  <h3 className="break-anywhere text-lg font-bold text-slate-900 dark:text-white sm:text-xl">{selectedItem.type === "crm" ? (selectedItem.endUser || "无") : (selectedItem.name || "无")}</h3>
                  <p className="break-anywhere mt-1 text-xs leading-5 text-slate-500 dark:text-slate-400 sm:text-sm">
                    {selectedItem.type === "sales"
                      ? `${selectedItem.officeName || "无"} · ${selectedItem.dept || "无"} · ${selectedItem.title || "无"}`
                      : selectedItem.type === "crm"
                        ? `${getDictLabelByValue(selectedItem.officeName, officeOptions) || "无"} · ${selectedItem.industryAttr || "无"}`
                        : `${selectedItem.province || "无"} · ${selectedItem.city || "无"} · ${selectedItem.channelIndustry || "无"} · ${selectedItem.certificationLevel || "无"}`}
                  </p>
                  <div className="mt-3 flex flex-wrap gap-2">
                    {selectedItem.type === "sales" ? (
                      <span className={`crm-pill ${selectedItem.active ? "crm-pill-emerald" : "crm-pill-neutral"}`}>
                        {selectedItem.active ? "在职" : "离职"}
                      </span>
                    ) : null}
                  </div>
                </div>

                <div className="crm-section-stack">
                  <h4 className="flex items-center gap-2 text-sm font-semibold text-slate-900 dark:text-white">
                    <FileText className="crm-icon-md text-violet-500" />
                    基本信息
                  </h4>
                  <div className="crm-detail-grid text-sm sm:grid-cols-2">
                    {selectedItem.type === "sales" ? (
                      <>
                        <DetailItem label="工号" value={selectedItem.employeeNo || "无"} />
                        <DetailItem label="代表处 / 办事处" value={selectedItem.officeName || "无"} />
                        <DetailItem label="联系方式" value={selectedItem.phone || "无"} icon={<Phone className="h-3 w-3" />} />
                        {(() => {
                          const pairing = new Map<string, string[]>();
                          (selectedItem.regionItems ?? "")
                            .split("，")
                            .map((segment) => segment.trim())
                            .filter(Boolean)
                            .forEach((segment) => {
                              const [province = "", city = ""] = segment.split("|");
                              if (!province) return;
                              if (!pairing.has(province)) pairing.set(province, []);
                              if (city) pairing.get(province)!.push(city);
                            });
                          const groups = Array.from(pairing.entries());
                          const formatted = groups
                            .map(([province, cities]) =>
                              cities.length > 0 ? `${province}:${cities.join("、")}` : `${province}:全省`,
                            )
                            .join("，");
                          return <DetailItem label="所属区域" value={formatted || "无"} className="sm:col-span-2" />;
                        })()}
                        <DetailItem label="所属行业" value={selectedItem.industry || "无"} icon={<Building2 className="h-3 w-3" />} />
                        <DetailItem label="职务" value={selectedItem.title || "无"} />
                        <DetailItem label="合作意向" value={selectedItem.intent || "无"} />
                        <DetailItem label="销售以前是否做过云桌面项目" value={selectedItem.hasExp ? "是" : "否"} />
                        <DetailItem label="销售是否在职" value={selectedItem.active ? "是" : "否"} />
                      </>
                    ) : selectedItem.type === "crm" ? (
                      <>
                        <DetailItem label="最终用户" value={selectedItem.endUser || "无"} />
                        <DetailItem label="代表处" value={getDictLabelByValue(selectedItem.officeName, officeOptions) || "无"} />
                        <DetailItem label="行业属性" value={selectedItem.industryAttr || "无"} />
                        <DetailItem label="类型" value={selectedItem.extensionType || "无"} />
                        <DetailItem label="软件点数" value={selectedItem.softwarePoints == null ? "无" : String(selectedItem.softwarePoints)} />
                        <DetailItem label="采购时间" value={selectedItem.purchaseDateText || "无"} />
                        <DetailItem label="过保时间" value={selectedItem.warrantyExpiryText || "无"} />
                        <DetailItem label="在线情况" value={selectedItem.onlineStatus || "无"} />
                        <DetailItem label="进货商" value={selectedItem.supplierName || "无"} />
                        <DetailItem label="新华三对接人" value={selectedItem.h3cContactName || "无"} />
                        <DetailItem label="是否有扩容机会" value={selectedItem.hasExpansionOpportunity === "1" ? "是" : selectedItem.hasExpansionOpportunity === "0" ? "否" : "无"} />
                        {selectedItem.hasExpansionOpportunity === "1" ? (
                          <>
                            <DetailItem label="扩容时间" value={selectedItem.expansionTimeText || "无"} />
                            <DetailItem label="扩容规模" value={selectedItem.expansionScale || "无"} />
                          </>
                        ) : null}
                        <DetailItem label="是否有维保项目机会" value={selectedItem.hasMaintenanceOpportunity === "1" ? "是" : selectedItem.hasMaintenanceOpportunity === "0" ? "否" : "无"} />
                      </>
                    ) : (
                      <>
                        <DetailItem label="编码" value={selectedItem.channelCode || "无"} className="sm:col-span-2" />
                        <DetailItem
                          label="办公地区"
                          value={`${selectedItem.province || "无"}${selectedItem.city ? ` / ${selectedItem.city}` : ""}`}
                        />
                        <DetailItem label="详细地址" value={selectedItem.officeAddress || "无"} />
                        {(() => {
                          const pairing = new Map<string, string[]>();
                          (selectedItem.coverageItems ?? "")
                            .split("，")
                            .map((segment) => segment.trim())
                            .filter(Boolean)
                            .forEach((segment) => {
                              const [province = "", city = ""] = segment.split("|");
                              if (!province) return;
                              if (!pairing.has(province)) pairing.set(province, []);
                              if (city) pairing.get(province)!.push(city);
                            });
                          const groups = Array.from(pairing.entries());
                          const formatted = groups
                            .map(([province, cities]) =>
                              cities.length > 0 ? `${province}:${cities.join("、")}` : `${province}:全省`,
                            )
                            .join("，");
                          return <DetailItem label="覆盖地市" value={groups.length > 0 ? formatted : "无"} className="sm:col-span-2" />;
                        })()}
                        <DetailItem label="聚焦行业" value={selectedItem.channelIndustry || "无"} icon={<Building2 className="h-3 w-3" />} />
                        <DetailItem label="汇智内部认证级别" value={selectedItem.certificationLevel || "无"} />
                        <DetailItem label={CHANNEL_REVENUE_LABEL} value={selectedItem.revenue || "无"} />
                        <DetailItem label="人员规模" value={`${selectedItem.size ?? 0}人`} />
                        <DetailItem label={CHANNEL_REGISTERED_CAPITAL_LABEL} value={selectedItem.registeredCapital ? `${selectedItem.registeredCapital}万元` : "无"} />
                        <DetailItem label="建立联系时间" value={selectedItem.establishedDate || "无"} icon={<Calendar className="h-3 w-3" />} />
                        <DetailItem label="合作意向" value={selectedItem.intent || "无"} />
                        <DetailItem label="渠道属性" value={selectedItem.channelAttribute || "无"} />
                        <DetailItem label="新华三内部属性" value={selectedItem.internalAttribute || "无"} />
                        <DetailItem label="以前是否做过云桌面项目" value={selectedItem.hasDesktopExp ? "是" : "否"} />
                      </>
                    )}
                    {selectedItem.type === "channel" ? <DetailItem label="备注说明" value={selectedItem.notes || "无"} className="sm:col-span-2" /> : null}
                  </div>
                </div>

                {selectedItem.type === "sales" ? (
                  <div className="crm-section-stack">
                    <div className="flex rounded-2xl border border-slate-200 bg-slate-50 p-1 dark:border-slate-800 dark:bg-slate-800/40">
                      <button
                        type="button"
                        onClick={() => setSalesDetailTab("projects")}
                        className={`flex-1 rounded-xl px-4 py-2 text-sm font-medium transition-colors ${
                          salesDetailTab === "projects"
                            ? "bg-white text-violet-600 shadow-sm dark:bg-slate-900 dark:text-violet-400"
                            : "text-slate-500 dark:text-slate-400"
                        }`}
                      >
                        跟进项目
                      </button>
                      <button
                        type="button"
                        onClick={() => setSalesDetailTab("followups")}
                        className={`flex-1 rounded-xl px-4 py-2 text-sm font-medium transition-colors ${
                          salesDetailTab === "followups"
                            ? "bg-white text-violet-600 shadow-sm dark:bg-slate-900 dark:text-violet-400"
                            : "text-slate-500 dark:text-slate-400"
                        }`}
                      >
                        跟进记录
                      </button>
                    </div>

                    {salesDetailTab === "projects" ? (
                      <div className="crm-section-stack">
                        {(selectedItem.relatedProjects?.length ?? 0) > 0 ? (
                          <div className="crm-list-stack">
                            {selectedItem.relatedProjects?.map((project) => (
                              <div
                                key={project.opportunityId}
                                className="crm-detail-grid text-sm sm:grid-cols-3"
                              >
                                <DetailItem label="项目编码" value={project.opportunityCode || "无"} />
                                <DetailItem label="项目名称" value={project.opportunityName || "未命名项目"} />
                                <DetailItem label="项目金额" value={`¥${new Intl.NumberFormat("zh-CN").format(Number(project.amount || 0))}`} />
                              </div>
                            ))}
                          </div>
                        ) : (
                          <div className="crm-empty-panel">
                            暂无关联项目
                          </div>
                        )}
                      </div>
                    ) : (
                      <div className="crm-section-stack">
                        <h4 className="flex items-center gap-2 text-sm font-semibold text-slate-900 dark:text-white">
                          <Clock className="crm-icon-md text-violet-500" />
                          跟进记录
                        </h4>
                        {renderFollowUpTimeline()}
                      </div>
                    )}
                  </div>
                ) : selectedItem.type === "crm" ? (
                  <div className="crm-section-stack">
                    <div className="flex rounded-2xl border border-slate-200 bg-slate-50 p-1 dark:border-slate-800 dark:bg-slate-800/40">
                      <button
                        type="button"
                        onClick={() => setCrmDetailTab("contacts")}
                        className={`flex-1 rounded-xl px-4 py-2 text-sm font-medium transition-colors ${
                          crmDetailTab === "contacts"
                            ? "bg-white text-violet-600 shadow-sm dark:bg-slate-900 dark:text-violet-400"
                            : "text-slate-500 dark:text-slate-400"
                        }`}
                      >
                        联系人
                      </button>
                      <button
                        type="button"
                        onClick={() => setCrmDetailTab("followups")}
                        className={`flex-1 rounded-xl px-4 py-2 text-sm font-medium transition-colors ${
                          crmDetailTab === "followups"
                            ? "bg-white text-violet-600 shadow-sm dark:bg-slate-900 dark:text-violet-400"
                            : "text-slate-500 dark:text-slate-400"
                        }`}
                      >
                        拜访记录
                      </button>
                    </div>

                    {crmDetailTab === "contacts" ? (
                      <div className="crm-section-stack">
                        <h4 className="flex items-center gap-2 text-sm font-semibold text-slate-900 dark:text-white">
                          <User className="crm-icon-md text-violet-500" />
                          联系人信息
                        </h4>
                        {(selectedItem.contacts?.length ?? 0) > 0 ? (
                          <div className="space-y-3">
                            {selectedItem.contacts?.map((contact, index) => (
                              <div key={`${contact.name || "contact"}-${index}`} className="grid grid-cols-1 gap-3 rounded-xl border border-slate-100 bg-slate-50/50 p-4 text-sm dark:border-slate-800 dark:bg-slate-800/20 sm:grid-cols-3">
                                <div><p className="mb-1 text-slate-500 dark:text-slate-400">联系人姓名</p><p className="break-anywhere font-medium text-slate-900 dark:text-white">{contact.name || "无"}</p></div>
                                <div><p className="mb-1 text-slate-500 dark:text-slate-400">联系人电话</p><p className="break-anywhere font-medium text-slate-900 dark:text-white">{contact.mobile || "无"}</p></div>
                                <div><p className="mb-1 text-slate-500 dark:text-slate-400">联系人职位</p><p className="break-anywhere font-medium text-slate-900 dark:text-white">{contact.title || "无"}</p></div>
                              </div>
                            ))}
                          </div>
                        ) : (
                          <div className="crm-empty-panel">
                            暂无联系人信息
                          </div>
                        )}
                      </div>
                    ) : null}

                    {crmDetailTab === "followups" ? (
                      <div className="crm-section-stack">
                        <h4 className="flex items-center gap-2 text-sm font-semibold text-slate-900 dark:text-white">
                          <Clock className="crm-icon-md text-violet-500" />
                          拜访记录
                        </h4>
                        {renderFollowUpTimeline()}
                      </div>
                    ) : null}
                  </div>
                ) : (
                  <div className="crm-section-stack">
                    <div className="flex rounded-2xl border border-slate-200 bg-slate-50 p-1 dark:border-slate-800 dark:bg-slate-800/40">
                      <button
                        type="button"
                        onClick={() => setChannelDetailTab("projects")}
                        className={`flex-1 rounded-xl px-3 py-2 text-sm font-medium transition-colors ${
                          channelDetailTab === "projects"
                            ? "bg-white text-violet-600 shadow-sm dark:bg-slate-900 dark:text-violet-400"
                            : "text-slate-500 dark:text-slate-400"
                        }`}
                      >
                        跟进项目
                      </button>
                      <button
                        type="button"
                        onClick={() => setChannelDetailTab("contacts")}
                        className={`flex-1 rounded-xl px-3 py-2 text-sm font-medium transition-colors ${
                          channelDetailTab === "contacts"
                            ? "bg-white text-violet-600 shadow-sm dark:bg-slate-900 dark:text-violet-400"
                            : "text-slate-500 dark:text-slate-400"
                        }`}
                      >
                        人员信息
                      </button>
                      <button
                        type="button"
                        onClick={() => setChannelDetailTab("followups")}
                        className={`flex-1 rounded-xl px-3 py-2 text-sm font-medium transition-colors ${
                          channelDetailTab === "followups"
                            ? "bg-white text-violet-600 shadow-sm dark:bg-slate-900 dark:text-violet-400"
                            : "text-slate-500 dark:text-slate-400"
                        }`}
                      >
                        跟进记录
                      </button>
                    </div>

                    {channelDetailTab === "projects" ? (
                      (selectedItem.relatedProjects?.length ?? 0) > 0 ? (
                        <div className="crm-list-stack">
                          {selectedItem.relatedProjects?.map((project) => (
                            <div
                              key={project.opportunityId}
                              className="crm-detail-grid text-sm sm:grid-cols-3"
                            >
                              <DetailItem label="项目编码" value={project.opportunityCode || "无"} />
                              <DetailItem label="项目名称" value={project.opportunityName || "未命名项目"} />
                              <DetailItem label="项目金额" value={`¥${new Intl.NumberFormat("zh-CN").format(Number(project.amount || 0))}`} />
                            </div>
                          ))}
                        </div>
                      ) : (
                        <div className="crm-empty-panel">
                          暂无关联项目
                        </div>
                      )
                    ) : null}

                    {channelDetailTab === "contacts" ? (
                      (selectedItem.contacts?.length ?? 0) > 0 ? (
                        <div className="overflow-x-auto rounded-xl border border-slate-100 bg-slate-50/50 dark:border-slate-800 dark:bg-slate-800/20">
                          <table className="w-full min-w-[52rem] border-separate border-spacing-0 text-sm">
                            <thead>
                              <tr className="text-left text-xs text-slate-500 dark:text-slate-400">
                                <th className="whitespace-nowrap px-3 py-2 font-medium">工作职责</th>
                                <th className="whitespace-nowrap px-3 py-2 font-medium">人员姓名</th>
                                <th className="whitespace-nowrap px-3 py-2 font-medium">职务</th>
                                <th className="whitespace-nowrap px-3 py-2 font-medium">联系电话</th>
                                <th className="whitespace-nowrap px-3 py-2 font-medium">生日</th>
                                <th className="whitespace-nowrap px-3 py-2 font-medium">是否加企业微信</th>
                                <th className="whitespace-nowrap px-3 py-2 font-medium">特别说明</th>
                              </tr>
                            </thead>
                            <tbody>
                              {selectedItem.contacts?.map((contact, index) => (
                                <tr key={`${contact.name || "contact"}-${index}`} className="border-t border-slate-100 align-top first:border-t-0 dark:border-slate-800">
                                  <td className="break-anywhere px-3 py-2 font-medium text-slate-900 dark:text-white">{contact.duty || "无"}</td>
                                  <td className="break-anywhere px-3 py-2 font-medium text-slate-900 dark:text-white">{contact.name || "无"}</td>
                                  <td className="break-anywhere px-3 py-2 text-slate-700 dark:text-slate-300">{contact.title || "无"}</td>
                                  <td className="break-anywhere px-3 py-2 text-slate-700 dark:text-slate-300">{contact.mobile || "无"}</td>
                                  <td className="break-anywhere px-3 py-2 text-slate-700 dark:text-slate-300">{contact.birthday || "无"}</td>
                                  <td className="break-anywhere px-3 py-2 text-slate-700 dark:text-slate-300">{contact.wecomAdded ? getDictLabelByValue(contact.wecomAdded, isOptions) : "无"}</td>
                                  <td className="break-anywhere px-3 py-2 text-slate-700 dark:text-slate-300">{contact.specialNote || "无"}</td>
                                </tr>
                              ))}
                            </tbody>
                          </table>
                        </div>
                      ) : (
                        <div className="crm-empty-panel">
                          暂无人员信息
                        </div>
                      )
                    ) : null}

                    {channelDetailTab === "followups" ? (
                      renderFollowUpTimeline()
                    ) : null}
                  </div>
                )}
              </div>
              </div>

              <div className="w-full shrink-0 border-t border-slate-200/80 bg-slate-50/95 backdrop-blur dark:border-slate-800/80 dark:bg-slate-900/90">
                <div className="px-4 pb-[calc(1rem+env(safe-area-inset-bottom))] pt-4 sm:p-4">
                  {!canEditSelectedItem ? (
                    <p className="mb-3 text-xs text-slate-400 dark:text-slate-500">当前记录非本人创建，仅支持查看详情，不能编辑。</p>
                  ) : null}
                  <div className={`grid gap-3 ${selectedItem && (selectedItem.type === "channel" || selectedItem.type === "crm") ? "grid-cols-2" : "grid-cols-1"}`}>
                    <button
                      type="button"
                      onClick={() => void handleOpenEdit()}
                      disabled={!canEditSelectedItem}
                      title={canEditSelectedItem ? "编辑资料" : "仅本人可操作"}
                      className="crm-btn crm-btn-secondary inline-flex h-11 w-full items-center justify-center disabled:cursor-not-allowed disabled:opacity-60"
                    >
                      {canEditSelectedItem ? "编辑资料" : "仅本人可操作"}
                    </button>
                    {selectedItem && (selectedItem.type === "channel" || selectedItem.type === "crm") ? (
                      <button
                        type="button"
                        onClick={() => void handleOpenMove()}
                        disabled={!canEditSelectedItem}
                        title={canEditSelectedItem ? (selectedItem.type === "channel" ? "移至CRM拓展" : "移至渠道拓展") : "仅本人可操作"}
                        className="crm-btn crm-btn-secondary inline-flex h-11 w-full items-center justify-center disabled:cursor-not-allowed disabled:opacity-60"
                      >
                        {canEditSelectedItem ? (selectedItem.type === "channel" ? "移至CRM拓展" : "移至渠道拓展") : "仅本人可操作"}
                      </button>
                    ) : null}
                  </div>
                </div>
              </div>
            </motion.div>
          </>
        )}
      </AnimatePresence>
    </div>
  );
}

function formatAmount(value: number) {
  return `¥${new Intl.NumberFormat("zh-CN").format(value)}`;
}

function sumRelatedProjectAmount(projects?: Array<{ amount?: number }>) {
  if (!projects || projects.length === 0) {
    return undefined;
  }
  const totalAmount = projects.reduce((sum, project) => sum + Number(project.amount || 0), 0);
  return Number.isFinite(totalAmount) ? totalAmount : undefined;
}

function formatRelatedProjectAmount(projects?: Array<{ amount?: number }>) {
  const totalAmount = sumRelatedProjectAmount(projects);
  if (totalAmount === undefined) {
    return "无";
  }
  return formatAmount(totalAmount);
}

function getExpansionFollowUpSummary(record: {
  type?: string;
  date?: string;
  content?: string;
  visitStartTime?: string;
  evaluationContent?: string;
  nextPlan?: string;
}) {
  const content = record.content || "";
  const parsedVisit = extractFollowUpField(content, "拜访时间");
  const parsedEvaluation = extractFollowUpField(content, "沟通内容");
  const parsedPlan = extractFollowUpField(content, "后续规划");
  const fallbackVisitStartTime = record.type === "工作日报" && record.date
    ? record.date.slice(0, 10)
    : undefined;

  return {
    visitStartTime: normalizeFollowUpDisplayValue(formatFollowUpDateValue(
      pickFollowUpValue(record.visitStartTime, parsedVisit, fallbackVisitStartTime),
    )),
    evaluationContent: normalizeFollowUpDisplayValue(
      pickFollowUpValue(record.evaluationContent, parsedEvaluation),
    ),
    nextPlan: normalizeFollowUpDisplayValue(
      pickFollowUpValue(record.nextPlan, parsedPlan),
    ),
  };
}

function pickFollowUpValue(...values: Array<string | undefined>) {
  return values.find((value) => {
    const normalized = value?.trim();
    return normalized && normalized !== "无";
  });
}

function formatFollowUpDateValue(value?: string) {
  const normalized = value?.trim();
  if (!normalized) {
    return undefined;
  }
  const match = normalized.match(/^(\d{4}-\d{2}-\d{2})/);
  return match ? match[1] : normalized;
}

function extractFollowUpField(content: string, label: string) {
  const normalized = content.replace(/\r/g, "");
  const escapedLabel = label.replace(/[.*+?^${}()|[\]\\]/g, "\\$&");
  const match = normalized.match(new RegExp(`${escapedLabel}：([^\\n]+)`));
  return match?.[1]?.trim();
}

function normalizeFollowUpDisplayValue(value?: string) {
  const normalized = value?.trim();
  return normalized ? normalized : "无";
}