src/Api/TakeoutSaaS.TenantApi/Contracts/Finance/FinanceInvoiceContracts.cs

@@ -0,0 +1,533 @@
+namespace TakeoutSaaS.TenantApi.Contracts.Finance;
+
+/// <summary>
+/// 保存发票设置请求。
+/// </summary>
+public sealed class FinanceInvoiceSettingSaveRequest
+{
+    /// <summary>
+    /// 企业名称。
+    /// </summary>
+    public string CompanyName { get; set; } = string.Empty;
+
+    /// <summary>
+    /// 纳税人识别号。
+    /// </summary>
+    public string TaxpayerNumber { get; set; } = string.Empty;
+
+    /// <summary>
+    /// 注册地址。
+    /// </summary>
+    public string? RegisteredAddress { get; set; }
+
+    /// <summary>
+    /// 注册电话。
+    /// </summary>
+    public string? RegisteredPhone { get; set; }
+
+    /// <summary>
+    /// 开户银行。
+    /// </summary>
+    public string? BankName { get; set; }
+
+    /// <summary>
+    /// 银行账号。
+    /// </summary>
+    public string? BankAccount { get; set; }
+
+    /// <summary>
+    /// 是否启用电子普通发票。
+    /// </summary>
+    public bool EnableElectronicNormalInvoice { get; set; } = true;
+
+    /// <summary>
+    /// 是否启用电子专用发票。
+    /// </summary>
+    public bool EnableElectronicSpecialInvoice { get; set; }
+
+    /// <summary>
+    /// 是否启用自动开票。
+    /// </summary>
+    public bool EnableAutoIssue { get; set; }
+
+    /// <summary>
+    /// 自动开票单张最大金额。
+    /// </summary>
+    public decimal AutoIssueMaxAmount { get; set; } = 10_000m;
+}
+
+/// <summary>
+/// 发票记录列表请求。
+/// </summary>
+public sealed class FinanceInvoiceRecordListRequest
+{
+    /// <summary>
+    /// 开始日期（yyyy-MM-dd）。
+    /// </summary>
+    public string? StartDate { get; set; }
+
+    /// <summary>
+    /// 结束日期（yyyy-MM-dd）。
+    /// </summary>
+    public string? EndDate { get; set; }
+
+    /// <summary>
+    /// 状态（pending/issued/voided）。
+    /// </summary>
+    public string? Status { get; set; }
+
+    /// <summary>
+    /// 类型（normal/special）。
+    /// </summary>
+    public string? InvoiceType { get; set; }
+
+    /// <summary>
+    /// 关键词（发票号/公司名/申请人）。
+    /// </summary>
+    public string? Keyword { get; set; }
+
+    /// <summary>
+    /// 页码。
+    /// </summary>
+    public int Page { get; set; } = 1;
+
+    /// <summary>
+    /// 每页条数。
+    /// </summary>
+    public int PageSize { get; set; } = 10;
+}
+
+/// <summary>
+/// 发票记录详情请求。
+/// </summary>
+public sealed class FinanceInvoiceRecordDetailRequest
+{
+    /// <summary>
+    /// 发票记录 ID。
+    /// </summary>
+    public string RecordId { get; set; } = string.Empty;
+}
+
+/// <summary>
+/// 发票开票请求。
+/// </summary>
+public sealed class FinanceInvoiceRecordIssueRequest
+{
+    /// <summary>
+    /// 发票记录 ID。
+    /// </summary>
+    public string RecordId { get; set; } = string.Empty;
+
+    /// <summary>
+    /// 接收邮箱（可选）。
+    /// </summary>
+    public string? ContactEmail { get; set; }
+
+    /// <summary>
+    /// 开票备注。
+    /// </summary>
+    public string? IssueRemark { get; set; }
+}
+
+/// <summary>
+/// 发票作废请求。
+/// </summary>
+public sealed class FinanceInvoiceRecordVoidRequest
+{
+    /// <summary>
+    /// 发票记录 ID。
+    /// </summary>
+    public string RecordId { get; set; } = string.Empty;
+
+    /// <summary>
+    /// 作废原因。
+    /// </summary>
+    public string VoidReason { get; set; } = string.Empty;
+}
+
+/// <summary>
+/// 发票申请请求。
+/// </summary>
+public sealed class FinanceInvoiceRecordApplyRequest
+{
+    /// <summary>
+    /// 申请人。
+    /// </summary>
+    public string ApplicantName { get; set; } = string.Empty;
+
+    /// <summary>
+    /// 开票抬头（公司名）。
+    /// </summary>
+    public string CompanyName { get; set; } = string.Empty;
+
+    /// <summary>
+    /// 纳税人识别号。
+    /// </summary>
+    public string? TaxpayerNumber { get; set; }
+
+    /// <summary>
+    /// 发票类型（normal/special）。
+    /// </summary>
+    public string InvoiceType { get; set; } = "normal";
+
+    /// <summary>
+    /// 开票金额。
+    /// </summary>
+    public decimal Amount { get; set; }
+
+    /// <summary>
+    /// 关联订单号。
+    /// </summary>
+    public string OrderNo { get; set; } = string.Empty;
+
+    /// <summary>
+    /// 接收邮箱。
+    /// </summary>
+    public string? ContactEmail { get; set; }
+
+    /// <summary>
+    /// 联系电话。
+    /// </summary>
+    public string? ContactPhone { get; set; }
+
+    /// <summary>
+    /// 申请备注。
+    /// </summary>
+    public string? ApplyRemark { get; set; }
+
+    /// <summary>
+    /// 申请时间（可空）。
+    /// </summary>
+    public DateTime? AppliedAt { get; set; }
+}
+
+/// <summary>
+/// 发票设置响应。
+/// </summary>
+public sealed class FinanceInvoiceSettingResponse
+{
+    /// <summary>
+    /// 企业名称。
+    /// </summary>
+    public string CompanyName { get; set; } = string.Empty;
+
+    /// <summary>
+    /// 纳税人识别号。
+    /// </summary>
+    public string TaxpayerNumber { get; set; } = string.Empty;
+
+    /// <summary>
+    /// 注册地址。
+    /// </summary>
+    public string? RegisteredAddress { get; set; }
+
+    /// <summary>
+    /// 注册电话。
+    /// </summary>
+    public string? RegisteredPhone { get; set; }
+
+    /// <summary>
+    /// 开户银行。
+    /// </summary>
+    public string? BankName { get; set; }
+
+    /// <summary>
+    /// 银行账号。
+    /// </summary>
+    public string? BankAccount { get; set; }
+
+    /// <summary>
+    /// 是否启用电子普通发票。
+    /// </summary>
+    public bool EnableElectronicNormalInvoice { get; set; }
+
+    /// <summary>
+    /// 是否启用电子专用发票。
+    /// </summary>
+    public bool EnableElectronicSpecialInvoice { get; set; }
+
+    /// <summary>
+    /// 是否启用自动开票。
+    /// </summary>
+    public bool EnableAutoIssue { get; set; }
+
+    /// <summary>
+    /// 自动开票单张最大金额。
+    /// </summary>
+    public decimal AutoIssueMaxAmount { get; set; }
+}
+
+/// <summary>
+/// 发票统计响应。
+/// </summary>
+public sealed class FinanceInvoiceStatsResponse
+{
+    /// <summary>
+    /// 本月已开票金额。
+    /// </summary>
+    public decimal CurrentMonthIssuedAmount { get; set; }
+
+    /// <summary>
+    /// 本月已开票张数。
+    /// </summary>
+    public int CurrentMonthIssuedCount { get; set; }
+
+    /// <summary>
+    /// 待开票数量。
+    /// </summary>
+    public int PendingCount { get; set; }
+
+    /// <summary>
+    /// 已作废数量。
+    /// </summary>
+    public int VoidedCount { get; set; }
+}
+
+/// <summary>
+/// 发票记录列表项响应。
+/// </summary>
+public sealed class FinanceInvoiceRecordResponse
+{
+    /// <summary>
+    /// 记录 ID。
+    /// </summary>
+    public string RecordId { get; set; } = string.Empty;
+
+    /// <summary>
+    /// 发票号码。
+    /// </summary>
+    public string InvoiceNo { get; set; } = string.Empty;
+
+    /// <summary>
+    /// 申请人。
+    /// </summary>
+    public string ApplicantName { get; set; } = string.Empty;
+
+    /// <summary>
+    /// 开票抬头（公司名）。
+    /// </summary>
+    public string CompanyName { get; set; } = string.Empty;
+
+    /// <summary>
+    /// 发票类型编码。
+    /// </summary>
+    public string InvoiceType { get; set; } = string.Empty;
+
+    /// <summary>
+    /// 发票类型文案。
+    /// </summary>
+    public string InvoiceTypeText { get; set; } = string.Empty;
+
+    /// <summary>
+    /// 金额。
+    /// </summary>
+    public decimal Amount { get; set; }
+
+    /// <summary>
+    /// 关联订单号。
+    /// </summary>
+    public string OrderNo { get; set; } = string.Empty;
+
+    /// <summary>
+    /// 状态编码。
+    /// </summary>
+    public string Status { get; set; } = string.Empty;
+
+    /// <summary>
+    /// 状态文案。
+    /// </summary>
+    public string StatusText { get; set; } = string.Empty;
+
+    /// <summary>
+    /// 申请时间（本地显示字符串）。
+    /// </summary>
+    public string AppliedAt { get; set; } = string.Empty;
+}
+
+/// <summary>
+/// 发票记录详情响应。
+/// </summary>
+public sealed class FinanceInvoiceRecordDetailResponse
+{
+    /// <summary>
+    /// 记录 ID。
+    /// </summary>
+    public string RecordId { get; set; } = string.Empty;
+
+    /// <summary>
+    /// 发票号码。
+    /// </summary>
+    public string InvoiceNo { get; set; } = string.Empty;
+
+    /// <summary>
+    /// 申请人。
+    /// </summary>
+    public string ApplicantName { get; set; } = string.Empty;
+
+    /// <summary>
+    /// 开票抬头（公司名）。
+    /// </summary>
+    public string CompanyName { get; set; } = string.Empty;
+
+    /// <summary>
+    /// 纳税人识别号。
+    /// </summary>
+    public string? TaxpayerNumber { get; set; }
+
+    /// <summary>
+    /// 发票类型编码。
+    /// </summary>
+    public string InvoiceType { get; set; } = string.Empty;
+
+    /// <summary>
+    /// 发票类型文案。
+    /// </summary>
+    public string InvoiceTypeText { get; set; } = string.Empty;
+
+    /// <summary>
+    /// 金额。
+    /// </summary>
+    public decimal Amount { get; set; }
+
+    /// <summary>
+    /// 关联订单号。
+    /// </summary>
+    public string OrderNo { get; set; } = string.Empty;
+
+    /// <summary>
+    /// 接收邮箱。
+    /// </summary>
+    public string? ContactEmail { get; set; }
+
+    /// <summary>
+    /// 联系电话。
+    /// </summary>
+    public string? ContactPhone { get; set; }
+
+    /// <summary>
+    /// 申请备注。
+    /// </summary>
+    public string? ApplyRemark { get; set; }
+
+    /// <summary>
+    /// 状态编码。
+    /// </summary>
+    public string Status { get; set; } = string.Empty;
+
+    /// <summary>
+    /// 状态文案。
+    /// </summary>
+    public string StatusText { get; set; } = string.Empty;
+
+    /// <summary>
+    /// 申请时间（本地显示字符串）。
+    /// </summary>
+    public string AppliedAt { get; set; } = string.Empty;
+
+    /// <summary>
+    /// 开票时间（本地显示字符串）。
+    /// </summary>
+    public string? IssuedAt { get; set; }
+
+    /// <summary>
+    /// 开票人 ID。
+    /// </summary>
+    public string? IssuedByUserId { get; set; }
+
+    /// <summary>
+    /// 开票备注。
+    /// </summary>
+    public string? IssueRemark { get; set; }
+
+    /// <summary>
+    /// 作废时间（本地显示字符串）。
+    /// </summary>
+    public string? VoidedAt { get; set; }
+
+    /// <summary>
+    /// 作废人 ID。
+    /// </summary>
+    public string? VoidedByUserId { get; set; }
+
+    /// <summary>
+    /// 作废原因。
+    /// </summary>
+    public string? VoidReason { get; set; }
+}
+
+/// <summary>
+/// 发票开票结果响应。
+/// </summary>
+public sealed class FinanceInvoiceIssueResultResponse
+{
+    /// <summary>
+    /// 记录 ID。
+    /// </summary>
+    public string RecordId { get; set; } = string.Empty;
+
+    /// <summary>
+    /// 发票号码。
+    /// </summary>
+    public string InvoiceNo { get; set; } = string.Empty;
+
+    /// <summary>
+    /// 开票抬头。
+    /// </summary>
+    public string CompanyName { get; set; } = string.Empty;
+
+    /// <summary>
+    /// 金额。
+    /// </summary>
+    public decimal Amount { get; set; }
+
+    /// <summary>
+    /// 接收邮箱。
+    /// </summary>
+    public string? ContactEmail { get; set; }
+
+    /// <summary>
+    /// 开票时间（本地显示字符串）。
+    /// </summary>
+    public string IssuedAt { get; set; } = string.Empty;
+
+    /// <summary>
+    /// 状态编码。
+    /// </summary>
+    public string Status { get; set; } = string.Empty;
+
+    /// <summary>
+    /// 状态文案。
+    /// </summary>
+    public string StatusText { get; set; } = string.Empty;
+}
+
+/// <summary>
+/// 发票记录分页响应。
+/// </summary>
+public sealed class FinanceInvoiceRecordListResultResponse
+{
+    /// <summary>
+    /// 列表项。
+    /// </summary>
+    public List<FinanceInvoiceRecordResponse> Items { get; set; } = [];
+
+    /// <summary>
+    /// 页码。
+    /// </summary>
+    public int Page { get; set; }
+
+    /// <summary>
+    /// 每页条数。
+    /// </summary>
+    public int PageSize { get; set; }
+
+    /// <summary>
+    /// 总条数。
+    /// </summary>
+    public int TotalCount { get; set; }
+
+    /// <summary>
+    /// 统计。
+    /// </summary>
+    public FinanceInvoiceStatsResponse Stats { get; set; } = new();
+}

src/Api/TakeoutSaaS.TenantApi/Controllers/FinanceInvoiceController.cs

@@ -0,0 +1,308 @@
+using System.Globalization;
+using MediatR;
+using Microsoft.AspNetCore.Authorization;
+using Microsoft.AspNetCore.Mvc;
+using TakeoutSaaS.Application.App.Finance.Invoice.Commands;
+using TakeoutSaaS.Application.App.Finance.Invoice.Dto;
+using TakeoutSaaS.Application.App.Finance.Invoice.Queries;
+using TakeoutSaaS.Domain.Tenants.Enums;
+using TakeoutSaaS.Module.Authorization.Attributes;
+using TakeoutSaaS.Shared.Abstractions.Constants;
+using TakeoutSaaS.Shared.Abstractions.Exceptions;
+using TakeoutSaaS.Shared.Abstractions.Results;
+using TakeoutSaaS.Shared.Web.Api;
+using TakeoutSaaS.TenantApi.Contracts.Finance;
+
+namespace TakeoutSaaS.TenantApi.Controllers;
+
+/// <summary>
+/// 财务中心发票管理。
+/// </summary>
+[ApiVersion("1.0")]
+[Authorize]
+[Route("api/tenant/v{version:apiVersion}/finance/invoice")]
+public sealed class FinanceInvoiceController(IMediator mediator) : BaseApiController
+{
+    private const string ViewPermission = "tenant:finance:invoice:view";
+    private const string IssuePermission = "tenant:finance:invoice:issue";
+    private const string VoidPermission = "tenant:finance:invoice:void";
+    private const string SettingsPermission = "tenant:finance:invoice:settings";
+
+    /// <summary>
+    /// 查询发票设置详情。
+    /// </summary>
+    [HttpGet("settings/detail")]
+    [PermissionAuthorize(ViewPermission, SettingsPermission)]
+    [ProducesResponseType(typeof(ApiResponse<FinanceInvoiceSettingResponse>), StatusCodes.Status200OK)]
+    public async Task<ApiResponse<FinanceInvoiceSettingResponse>> SettingsDetail(CancellationToken cancellationToken)
+    {
+        var result = await mediator.Send(new GetFinanceInvoiceSettingDetailQuery(), cancellationToken);
+        return ApiResponse<FinanceInvoiceSettingResponse>.Ok(MapSetting(result));
+    }
+
+    /// <summary>
+    /// 保存发票设置。
+    /// </summary>
+    [HttpPost("settings/save")]
+    [PermissionAuthorize(SettingsPermission)]
+    [ProducesResponseType(typeof(ApiResponse<FinanceInvoiceSettingResponse>), StatusCodes.Status200OK)]
+    public async Task<ApiResponse<FinanceInvoiceSettingResponse>> SettingsSave(
+        [FromBody] FinanceInvoiceSettingSaveRequest request,
+        CancellationToken cancellationToken)
+    {
+        var result = await mediator.Send(new SaveFinanceInvoiceSettingCommand
+        {
+            CompanyName = request.CompanyName,
+            TaxpayerNumber = request.TaxpayerNumber,
+            RegisteredAddress = request.RegisteredAddress,
+            RegisteredPhone = request.RegisteredPhone,
+            BankName = request.BankName,
+            BankAccount = request.BankAccount,
+            EnableElectronicNormalInvoice = request.EnableElectronicNormalInvoice,
+            EnableElectronicSpecialInvoice = request.EnableElectronicSpecialInvoice,
+            EnableAutoIssue = request.EnableAutoIssue,
+            AutoIssueMaxAmount = request.AutoIssueMaxAmount
+        }, cancellationToken);
+
+        return ApiResponse<FinanceInvoiceSettingResponse>.Ok(MapSetting(result));
+    }
+
+    /// <summary>
+    /// 查询发票记录分页。
+    /// </summary>
+    [HttpGet("record/list")]
+    [PermissionAuthorize(ViewPermission, IssuePermission, VoidPermission)]
+    [ProducesResponseType(typeof(ApiResponse<FinanceInvoiceRecordListResultResponse>), StatusCodes.Status200OK)]
+    public async Task<ApiResponse<FinanceInvoiceRecordListResultResponse>> RecordList(
+        [FromQuery] FinanceInvoiceRecordListRequest request,
+        CancellationToken cancellationToken)
+    {
+        var result = await mediator.Send(new GetFinanceInvoiceRecordListQuery
+        {
+            StartDateUtc = ParseDateOrNull(request.StartDate, nameof(request.StartDate)),
+            EndDateUtc = ParseDateOrNull(request.EndDate, nameof(request.EndDate)),
+            Status = ParseStatusOrNull(request.Status),
+            InvoiceType = ParseInvoiceTypeOrNull(request.InvoiceType),
+            Keyword = request.Keyword,
+            Page = request.Page,
+            PageSize = request.PageSize
+        }, cancellationToken);
+
+        return ApiResponse<FinanceInvoiceRecordListResultResponse>.Ok(new FinanceInvoiceRecordListResultResponse
+        {
+            Items = result.Items.Select(MapRecord).ToList(),
+            Page = result.Page,
+            PageSize = result.PageSize,
+            TotalCount = result.TotalCount,
+            Stats = new FinanceInvoiceStatsResponse
+            {
+                CurrentMonthIssuedAmount = result.Stats.CurrentMonthIssuedAmount,
+                CurrentMonthIssuedCount = result.Stats.CurrentMonthIssuedCount,
+                PendingCount = result.Stats.PendingCount,
+                VoidedCount = result.Stats.VoidedCount
+            }
+        });
+    }
+
+    /// <summary>
+    /// 查询发票记录详情。
+    /// </summary>
+    [HttpGet("record/detail")]
+    [PermissionAuthorize(ViewPermission, IssuePermission, VoidPermission)]
+    [ProducesResponseType(typeof(ApiResponse<FinanceInvoiceRecordDetailResponse>), StatusCodes.Status200OK)]
+    public async Task<ApiResponse<FinanceInvoiceRecordDetailResponse>> RecordDetail(
+        [FromQuery] FinanceInvoiceRecordDetailRequest request,
+        CancellationToken cancellationToken)
+    {
+        var result = await mediator.Send(new GetFinanceInvoiceRecordDetailQuery
+        {
+            RecordId = StoreApiHelpers.ParseRequiredSnowflake(request.RecordId, nameof(request.RecordId))
+        }, cancellationToken);
+
+        return ApiResponse<FinanceInvoiceRecordDetailResponse>.Ok(MapRecordDetail(result));
+    }
+
+    /// <summary>
+    /// 发票开票。
+    /// </summary>
+    [HttpPost("record/issue")]
+    [PermissionAuthorize(IssuePermission)]
+    [ProducesResponseType(typeof(ApiResponse<FinanceInvoiceIssueResultResponse>), StatusCodes.Status200OK)]
+    public async Task<ApiResponse<FinanceInvoiceIssueResultResponse>> RecordIssue(
+        [FromBody] FinanceInvoiceRecordIssueRequest request,
+        CancellationToken cancellationToken)
+    {
+        var result = await mediator.Send(new IssueFinanceInvoiceRecordCommand
+        {
+            RecordId = StoreApiHelpers.ParseRequiredSnowflake(request.RecordId, nameof(request.RecordId)),
+            ContactEmail = request.ContactEmail,
+            IssueRemark = request.IssueRemark
+        }, cancellationToken);
+
+        return ApiResponse<FinanceInvoiceIssueResultResponse>.Ok(MapIssueResult(result));
+    }
+
+    /// <summary>
+    /// 作废发票。
+    /// </summary>
+    [HttpPost("record/void")]
+    [PermissionAuthorize(VoidPermission)]
+    [ProducesResponseType(typeof(ApiResponse<FinanceInvoiceRecordDetailResponse>), StatusCodes.Status200OK)]
+    public async Task<ApiResponse<FinanceInvoiceRecordDetailResponse>> RecordVoid(
+        [FromBody] FinanceInvoiceRecordVoidRequest request,
+        CancellationToken cancellationToken)
+    {
+        var result = await mediator.Send(new VoidFinanceInvoiceRecordCommand
+        {
+            RecordId = StoreApiHelpers.ParseRequiredSnowflake(request.RecordId, nameof(request.RecordId)),
+            VoidReason = request.VoidReason
+        }, cancellationToken);
+
+        return ApiResponse<FinanceInvoiceRecordDetailResponse>.Ok(MapRecordDetail(result));
+    }
+
+    /// <summary>
+    /// 申请发票。
+    /// </summary>
+    [HttpPost("record/apply")]
+    [PermissionAuthorize(ViewPermission, IssuePermission)]
+    [ProducesResponseType(typeof(ApiResponse<FinanceInvoiceRecordDetailResponse>), StatusCodes.Status200OK)]
+    public async Task<ApiResponse<FinanceInvoiceRecordDetailResponse>> RecordApply(
+        [FromBody] FinanceInvoiceRecordApplyRequest request,
+        CancellationToken cancellationToken)
+    {
+        var result = await mediator.Send(new ApplyFinanceInvoiceRecordCommand
+        {
+            ApplicantName = request.ApplicantName,
+            CompanyName = request.CompanyName,
+            TaxpayerNumber = request.TaxpayerNumber,
+            InvoiceType = request.InvoiceType,
+            Amount = request.Amount,
+            OrderNo = request.OrderNo,
+            ContactEmail = request.ContactEmail,
+            ContactPhone = request.ContactPhone,
+            ApplyRemark = request.ApplyRemark,
+            AppliedAt = request.AppliedAt
+        }, cancellationToken);
+
+        return ApiResponse<FinanceInvoiceRecordDetailResponse>.Ok(MapRecordDetail(result));
+    }
+
+    private static DateTime? ParseDateOrNull(string? value, string fieldName)
+    {
+        return string.IsNullOrWhiteSpace(value)
+            ? null
+            : StoreApiHelpers.ParseDateOnly(value, fieldName);
+    }
+
+    private static TenantInvoiceStatus? ParseStatusOrNull(string? value)
+    {
+        var normalized = (value ?? string.Empty).Trim().ToLowerInvariant();
+        if (string.IsNullOrWhiteSpace(normalized))
+        {
+            return null;
+        }
+
+        return normalized switch
+        {
+            "pending" => TenantInvoiceStatus.Pending,
+            "issued" => TenantInvoiceStatus.Issued,
+            "voided" => TenantInvoiceStatus.Voided,
+            _ => throw new BusinessException(ErrorCodes.BadRequest, "status 参数不合法")
+        };
+    }
+
+    private static TenantInvoiceType? ParseInvoiceTypeOrNull(string? value)
+    {
+        var normalized = (value ?? string.Empty).Trim().ToLowerInvariant();
+        if (string.IsNullOrWhiteSpace(normalized))
+        {
+            return null;
+        }
+
+        return normalized switch
+        {
+            "normal" => TenantInvoiceType.Normal,
+            "special" => TenantInvoiceType.Special,
+            _ => throw new BusinessException(ErrorCodes.BadRequest, "invoiceType 参数不合法")
+        };
+    }
+
+    private static FinanceInvoiceSettingResponse MapSetting(FinanceInvoiceSettingDto source)
+    {
+        return new FinanceInvoiceSettingResponse
+        {
+            CompanyName = source.CompanyName,
+            TaxpayerNumber = source.TaxpayerNumber,
+            RegisteredAddress = source.RegisteredAddress,
+            RegisteredPhone = source.RegisteredPhone,
+            BankName = source.BankName,
+            BankAccount = source.BankAccount,
+            EnableElectronicNormalInvoice = source.EnableElectronicNormalInvoice,
+            EnableElectronicSpecialInvoice = source.EnableElectronicSpecialInvoice,
+            EnableAutoIssue = source.EnableAutoIssue,
+            AutoIssueMaxAmount = source.AutoIssueMaxAmount
+        };
+    }
+
+    private static FinanceInvoiceRecordResponse MapRecord(FinanceInvoiceRecordDto source)
+    {
+        return new FinanceInvoiceRecordResponse
+        {
+            RecordId = source.RecordId.ToString(),
+            InvoiceNo = source.InvoiceNo,
+            ApplicantName = source.ApplicantName,
+            CompanyName = source.CompanyName,
+            InvoiceType = source.InvoiceType,
+            InvoiceTypeText = source.InvoiceTypeText,
+            Amount = source.Amount,
+            OrderNo = source.OrderNo,
+            Status = source.Status,
+            StatusText = source.StatusText,
+            AppliedAt = source.AppliedAt.ToString("yyyy-MM-dd HH:mm:ss", CultureInfo.InvariantCulture)
+        };
+    }
+
+    private static FinanceInvoiceRecordDetailResponse MapRecordDetail(FinanceInvoiceRecordDetailDto source)
+    {
+        return new FinanceInvoiceRecordDetailResponse
+        {
+            RecordId = source.RecordId.ToString(),
+            InvoiceNo = source.InvoiceNo,
+            ApplicantName = source.ApplicantName,
+            CompanyName = source.CompanyName,
+            TaxpayerNumber = source.TaxpayerNumber,
+            InvoiceType = source.InvoiceType,
+            InvoiceTypeText = source.InvoiceTypeText,
+            Amount = source.Amount,
+            OrderNo = source.OrderNo,
+            ContactEmail = source.ContactEmail,
+            ContactPhone = source.ContactPhone,
+            ApplyRemark = source.ApplyRemark,
+            Status = source.Status,
+            StatusText = source.StatusText,
+            AppliedAt = source.AppliedAt.ToString("yyyy-MM-dd HH:mm:ss", CultureInfo.InvariantCulture),
+            IssuedAt = source.IssuedAt?.ToString("yyyy-MM-dd HH:mm:ss", CultureInfo.InvariantCulture),
+            IssuedByUserId = source.IssuedByUserId?.ToString(),
+            IssueRemark = source.IssueRemark,
+            VoidedAt = source.VoidedAt?.ToString("yyyy-MM-dd HH:mm:ss", CultureInfo.InvariantCulture),
+            VoidedByUserId = source.VoidedByUserId?.ToString(),
+            VoidReason = source.VoidReason
+        };
+    }
+
+    private static FinanceInvoiceIssueResultResponse MapIssueResult(FinanceInvoiceIssueResultDto source)
+    {
+        return new FinanceInvoiceIssueResultResponse
+        {
+            RecordId = source.RecordId.ToString(),
+            InvoiceNo = source.InvoiceNo,
+            CompanyName = source.CompanyName,
+            Amount = source.Amount,
+            ContactEmail = source.ContactEmail,
+            IssuedAt = source.IssuedAt.ToString("yyyy-MM-dd HH:mm:ss", CultureInfo.InvariantCulture),
+            Status = source.Status,
+            StatusText = source.StatusText
+        };
+    }
+}

src/Application/TakeoutSaaS.Application/App/Finance/Invoice/Commands/ApplyFinanceInvoiceRecordCommand.cs

@@ -0,0 +1,60 @@
+using MediatR;
+using TakeoutSaaS.Application.App.Finance.Invoice.Dto;
+
+namespace TakeoutSaaS.Application.App.Finance.Invoice.Commands;
+
+/// <summary>
+/// 申请发票记录命令。
+/// </summary>
+public sealed class ApplyFinanceInvoiceRecordCommand : IRequest<FinanceInvoiceRecordDetailDto>
+{
+    /// <summary>
+    /// 申请人。
+    /// </summary>
+    public string ApplicantName { get; init; } = string.Empty;
+
+    /// <summary>
+    /// 开票抬头（公司名）。
+    /// </summary>
+    public string CompanyName { get; init; } = string.Empty;
+
+    /// <summary>
+    /// 纳税人识别号。
+    /// </summary>
+    public string? TaxpayerNumber { get; init; }
+
+    /// <summary>
+    /// 发票类型（normal/special）。
+    /// </summary>
+    public string InvoiceType { get; init; } = "normal";
+
+    /// <summary>
+    /// 开票金额。
+    /// </summary>
+    public decimal Amount { get; init; }
+
+    /// <summary>
+    /// 关联订单号。
+    /// </summary>
+    public string OrderNo { get; init; } = string.Empty;
+
+    /// <summary>
+    /// 接收邮箱。
+    /// </summary>
+    public string? ContactEmail { get; init; }
+
+    /// <summary>
+    /// 联系电话。
+    /// </summary>
+    public string? ContactPhone { get; init; }
+
+    /// <summary>
+    /// 申请备注。
+    /// </summary>
+    public string? ApplyRemark { get; init; }
+
+    /// <summary>
+    /// 申请时间（可空，默认当前 UTC）。
+    /// </summary>
+    public DateTime? AppliedAt { get; init; }
+}

src/Application/TakeoutSaaS.Application/App/Finance/Invoice/Commands/IssueFinanceInvoiceRecordCommand.cs

@@ -0,0 +1,25 @@
+using MediatR;
+using TakeoutSaaS.Application.App.Finance.Invoice.Dto;
+
+namespace TakeoutSaaS.Application.App.Finance.Invoice.Commands;
+
+/// <summary>
+/// 开票命令。
+/// </summary>
+public sealed class IssueFinanceInvoiceRecordCommand : IRequest<FinanceInvoiceIssueResultDto>
+{
+    /// <summary>
+    /// 发票记录 ID。
+    /// </summary>
+    public long RecordId { get; init; }
+
+    /// <summary>
+    /// 接收邮箱（可选，传入会覆盖原值）。
+    /// </summary>
+    public string? ContactEmail { get; init; }
+
+    /// <summary>
+    /// 开票备注。
+    /// </summary>
+    public string? IssueRemark { get; init; }
+}

src/Application/TakeoutSaaS.Application/App/Finance/Invoice/Commands/SaveFinanceInvoiceSettingCommand.cs

@@ -0,0 +1,60 @@
+using MediatR;
+using TakeoutSaaS.Application.App.Finance.Invoice.Dto;
+
+namespace TakeoutSaaS.Application.App.Finance.Invoice.Commands;
+
+/// <summary>
+/// 保存发票设置命令。
+/// </summary>
+public sealed class SaveFinanceInvoiceSettingCommand : IRequest<FinanceInvoiceSettingDto>
+{
+    /// <summary>
+    /// 企业名称。
+    /// </summary>
+    public string CompanyName { get; init; } = string.Empty;
+
+    /// <summary>
+    /// 纳税人识别号。
+    /// </summary>
+    public string TaxpayerNumber { get; init; } = string.Empty;
+
+    /// <summary>
+    /// 注册地址。
+    /// </summary>
+    public string? RegisteredAddress { get; init; }
+
+    /// <summary>
+    /// 注册电话。
+    /// </summary>
+    public string? RegisteredPhone { get; init; }
+
+    /// <summary>
+    /// 开户银行。
+    /// </summary>
+    public string? BankName { get; init; }
+
+    /// <summary>
+    /// 银行账号。
+    /// </summary>
+    public string? BankAccount { get; init; }
+
+    /// <summary>
+    /// 是否启用电子普通发票。
+    /// </summary>
+    public bool EnableElectronicNormalInvoice { get; init; }
+
+    /// <summary>
+    /// 是否启用电子专用发票。
+    /// </summary>
+    public bool EnableElectronicSpecialInvoice { get; init; }
+
+    /// <summary>
+    /// 是否启用自动开票。
+    /// </summary>
+    public bool EnableAutoIssue { get; init; }
+
+    /// <summary>
+    /// 自动开票单张最大金额。
+    /// </summary>
+    public decimal AutoIssueMaxAmount { get; init; }
+}

src/Application/TakeoutSaaS.Application/App/Finance/Invoice/Commands/VoidFinanceInvoiceRecordCommand.cs

@@ -0,0 +1,20 @@
+using MediatR;
+using TakeoutSaaS.Application.App.Finance.Invoice.Dto;
+
+namespace TakeoutSaaS.Application.App.Finance.Invoice.Commands;
+
+/// <summary>
+/// 作废发票命令。
+/// </summary>
+public sealed class VoidFinanceInvoiceRecordCommand : IRequest<FinanceInvoiceRecordDetailDto>
+{
+    /// <summary>
+    /// 发票记录 ID。
+    /// </summary>
+    public long RecordId { get; init; }
+
+    /// <summary>
+    /// 作废原因。
+    /// </summary>
+    public string VoidReason { get; init; } = string.Empty;
+}

src/Application/TakeoutSaaS.Application/App/Finance/Invoice/Dto/FinanceInvoiceIssueResultDto.cs

@@ -0,0 +1,47 @@
+namespace TakeoutSaaS.Application.App.Finance.Invoice.Dto;
+
+/// <summary>
+/// 发票开票结果 DTO。
+/// </summary>
+public sealed class FinanceInvoiceIssueResultDto
+{
+    /// <summary>
+    /// 记录 ID。
+    /// </summary>
+    public long RecordId { get; set; }
+
+    /// <summary>
+    /// 发票号码。
+    /// </summary>
+    public string InvoiceNo { get; set; } = string.Empty;
+
+    /// <summary>
+    /// 开票抬头。
+    /// </summary>
+    public string CompanyName { get; set; } = string.Empty;
+
+    /// <summary>
+    /// 金额。
+    /// </summary>
+    public decimal Amount { get; set; }
+
+    /// <summary>
+    /// 接收邮箱。
+    /// </summary>
+    public string? ContactEmail { get; set; }
+
+    /// <summary>
+    /// 开票时间（UTC）。
+    /// </summary>
+    public DateTime IssuedAt { get; set; }
+
+    /// <summary>
+    /// 状态编码。
+    /// </summary>
+    public string Status { get; set; } = string.Empty;
+
+    /// <summary>
+    /// 状态文案。
+    /// </summary>
+    public string StatusText { get; set; } = string.Empty;
+}

src/Application/TakeoutSaaS.Application/App/Finance/Invoice/Dto/FinanceInvoiceRecordDetailDto.cs

@@ -0,0 +1,112 @@
+namespace TakeoutSaaS.Application.App.Finance.Invoice.Dto;
+
+/// <summary>
+/// 发票记录详情 DTO。
+/// </summary>
+public sealed class FinanceInvoiceRecordDetailDto
+{
+    /// <summary>
+    /// 记录 ID。
+    /// </summary>
+    public long RecordId { get; set; }
+
+    /// <summary>
+    /// 发票号码。
+    /// </summary>
+    public string InvoiceNo { get; set; } = string.Empty;
+
+    /// <summary>
+    /// 申请人。
+    /// </summary>
+    public string ApplicantName { get; set; } = string.Empty;
+
+    /// <summary>
+    /// 开票抬头（公司名）。
+    /// </summary>
+    public string CompanyName { get; set; } = string.Empty;
+
+    /// <summary>
+    /// 纳税人识别号。
+    /// </summary>
+    public string? TaxpayerNumber { get; set; }
+
+    /// <summary>
+    /// 发票类型编码。
+    /// </summary>
+    public string InvoiceType { get; set; } = string.Empty;
+
+    /// <summary>
+    /// 发票类型文案。
+    /// </summary>
+    public string InvoiceTypeText { get; set; } = string.Empty;
+
+    /// <summary>
+    /// 金额。
+    /// </summary>
+    public decimal Amount { get; set; }
+
+    /// <summary>
+    /// 关联订单号。
+    /// </summary>
+    public string OrderNo { get; set; } = string.Empty;
+
+    /// <summary>
+    /// 接收邮箱。
+    /// </summary>
+    public string? ContactEmail { get; set; }
+
+    /// <summary>
+    /// 联系电话。
+    /// </summary>
+    public string? ContactPhone { get; set; }
+
+    /// <summary>
+    /// 申请备注。
+    /// </summary>
+    public string? ApplyRemark { get; set; }
+
+    /// <summary>
+    /// 状态编码。
+    /// </summary>
+    public string Status { get; set; } = string.Empty;
+
+    /// <summary>
+    /// 状态文案。
+    /// </summary>
+    public string StatusText { get; set; } = string.Empty;
+
+    /// <summary>
+    /// 申请时间（UTC）。
+    /// </summary>
+    public DateTime AppliedAt { get; set; }
+
+    /// <summary>
+    /// 开票时间（UTC）。
+    /// </summary>
+    public DateTime? IssuedAt { get; set; }
+
+    /// <summary>
+    /// 开票人 ID。
+    /// </summary>
+    public long? IssuedByUserId { get; set; }
+
+    /// <summary>
+    /// 开票备注。
+    /// </summary>
+    public string? IssueRemark { get; set; }
+
+    /// <summary>
+    /// 作废时间（UTC）。
+    /// </summary>
+    public DateTime? VoidedAt { get; set; }
+
+    /// <summary>
+    /// 作废人 ID。
+    /// </summary>
+    public long? VoidedByUserId { get; set; }
+
+    /// <summary>
+    /// 作废原因。
+    /// </summary>
+    public string? VoidReason { get; set; }
+}

src/Application/TakeoutSaaS.Application/App/Finance/Invoice/Dto/FinanceInvoiceRecordDto.cs

@@ -0,0 +1,62 @@
+namespace TakeoutSaaS.Application.App.Finance.Invoice.Dto;
+
+/// <summary>
+/// 发票记录列表项 DTO。
+/// </summary>
+public sealed class FinanceInvoiceRecordDto
+{
+    /// <summary>
+    /// 记录 ID。
+    /// </summary>
+    public long RecordId { get; set; }
+
+    /// <summary>
+    /// 发票号码。
+    /// </summary>
+    public string InvoiceNo { get; set; } = string.Empty;
+
+    /// <summary>
+    /// 申请人。
+    /// </summary>
+    public string ApplicantName { get; set; } = string.Empty;
+
+    /// <summary>
+    /// 开票抬头（公司名）。
+    /// </summary>
+    public string CompanyName { get; set; } = string.Empty;
+
+    /// <summary>
+    /// 发票类型编码。
+    /// </summary>
+    public string InvoiceType { get; set; } = string.Empty;
+
+    /// <summary>
+    /// 发票类型文案。
+    /// </summary>
+    public string InvoiceTypeText { get; set; } = string.Empty;
+
+    /// <summary>
+    /// 金额。
+    /// </summary>
+    public decimal Amount { get; set; }
+
+    /// <summary>
+    /// 关联订单号。
+    /// </summary>
+    public string OrderNo { get; set; } = string.Empty;
+
+    /// <summary>
+    /// 状态编码。
+    /// </summary>
+    public string Status { get; set; } = string.Empty;
+
+    /// <summary>
+    /// 状态文案。
+    /// </summary>
+    public string StatusText { get; set; } = string.Empty;
+
+    /// <summary>
+    /// 申请时间（UTC）。
+    /// </summary>
+    public DateTime AppliedAt { get; set; }
+}

src/Application/TakeoutSaaS.Application/App/Finance/Invoice/Dto/FinanceInvoiceRecordListResultDto.cs

@@ -0,0 +1,32 @@
+namespace TakeoutSaaS.Application.App.Finance.Invoice.Dto;
+
+/// <summary>
+/// 发票记录分页结果 DTO。
+/// </summary>
+public sealed class FinanceInvoiceRecordListResultDto
+{
+    /// <summary>
+    /// 列表项。
+    /// </summary>
+    public List<FinanceInvoiceRecordDto> Items { get; set; } = [];
+
+    /// <summary>
+    /// 页码。
+    /// </summary>
+    public int Page { get; set; }
+
+    /// <summary>
+    /// 每页条数。
+    /// </summary>
+    public int PageSize { get; set; }
+
+    /// <summary>
+    /// 总条数。
+    /// </summary>
+    public int TotalCount { get; set; }
+
+    /// <summary>
+    /// 统计。
+    /// </summary>
+    public FinanceInvoiceStatsDto Stats { get; set; } = new();
+}

src/Application/TakeoutSaaS.Application/App/Finance/Invoice/Dto/FinanceInvoiceSettingDto.cs

@@ -0,0 +1,57 @@
+namespace TakeoutSaaS.Application.App.Finance.Invoice.Dto;
+
+/// <summary>
+/// 发票设置 DTO。
+/// </summary>
+public sealed class FinanceInvoiceSettingDto
+{
+    /// <summary>
+    /// 企业名称。
+    /// </summary>
+    public string CompanyName { get; set; } = string.Empty;
+
+    /// <summary>
+    /// 纳税人识别号。
+    /// </summary>
+    public string TaxpayerNumber { get; set; } = string.Empty;
+
+    /// <summary>
+    /// 注册地址。
+    /// </summary>
+    public string? RegisteredAddress { get; set; }
+
+    /// <summary>
+    /// 注册电话。
+    /// </summary>
+    public string? RegisteredPhone { get; set; }
+
+    /// <summary>
+    /// 开户银行。
+    /// </summary>
+    public string? BankName { get; set; }
+
+    /// <summary>
+    /// 银行账号。
+    /// </summary>
+    public string? BankAccount { get; set; }
+
+    /// <summary>
+    /// 是否启用电子普通发票。
+    /// </summary>
+    public bool EnableElectronicNormalInvoice { get; set; }
+
+    /// <summary>
+    /// 是否启用电子专用发票。
+    /// </summary>
+    public bool EnableElectronicSpecialInvoice { get; set; }
+
+    /// <summary>
+    /// 是否启用自动开票。
+    /// </summary>
+    public bool EnableAutoIssue { get; set; }
+
+    /// <summary>
+    /// 自动开票单张最大金额。
+    /// </summary>
+    public decimal AutoIssueMaxAmount { get; set; }
+}

src/Application/TakeoutSaaS.Application/App/Finance/Invoice/Dto/FinanceInvoiceStatsDto.cs

@@ -0,0 +1,27 @@
+namespace TakeoutSaaS.Application.App.Finance.Invoice.Dto;
+
+/// <summary>
+/// 发票统计 DTO。
+/// </summary>
+public sealed class FinanceInvoiceStatsDto
+{
+    /// <summary>
+    /// 本月已开票金额。
+    /// </summary>
+    public decimal CurrentMonthIssuedAmount { get; set; }
+
+    /// <summary>
+    /// 本月已开票张数。
+    /// </summary>
+    public int CurrentMonthIssuedCount { get; set; }
+
+    /// <summary>
+    /// 待开票数量。
+    /// </summary>
+    public int PendingCount { get; set; }
+
+    /// <summary>
+    /// 已作废数量。
+    /// </summary>
+    public int VoidedCount { get; set; }
+}

src/Application/TakeoutSaaS.Application/App/Finance/Invoice/FinanceInvoiceDtoFactory.cs

@@ -0,0 +1,199 @@
+using TakeoutSaaS.Application.App.Finance.Invoice.Commands;
+using TakeoutSaaS.Application.App.Finance.Invoice.Dto;
+using TakeoutSaaS.Domain.Tenants.Entities;
+using TakeoutSaaS.Domain.Tenants.Enums;
+using TakeoutSaaS.Domain.Tenants.Repositories;
+
+namespace TakeoutSaaS.Application.App.Finance.Invoice;
+
+/// <summary>
+/// 发票模块 DTO 构造器。
+/// </summary>
+internal static class FinanceInvoiceDtoFactory
+{
+    public static FinanceInvoiceSettingDto CreateDefaultSettingDto()
+    {
+        return new FinanceInvoiceSettingDto
+        {
+            CompanyName = string.Empty,
+            TaxpayerNumber = string.Empty,
+            RegisteredAddress = null,
+            RegisteredPhone = null,
+            BankName = null,
+            BankAccount = null,
+            EnableElectronicNormalInvoice = true,
+            EnableElectronicSpecialInvoice = false,
+            EnableAutoIssue = false,
+            AutoIssueMaxAmount = 10_000m
+        };
+    }
+
+    public static FinanceInvoiceSettingDto ToSettingDto(TenantInvoiceSetting source)
+    {
+        return new FinanceInvoiceSettingDto
+        {
+            CompanyName = source.CompanyName,
+            TaxpayerNumber = source.TaxpayerNumber,
+            RegisteredAddress = source.RegisteredAddress,
+            RegisteredPhone = source.RegisteredPhone,
+            BankName = source.BankName,
+            BankAccount = source.BankAccount,
+            EnableElectronicNormalInvoice = source.EnableElectronicNormalInvoice,
+            EnableElectronicSpecialInvoice = source.EnableElectronicSpecialInvoice,
+            EnableAutoIssue = source.EnableAutoIssue,
+            AutoIssueMaxAmount = decimal.Round(source.AutoIssueMaxAmount, 2, MidpointRounding.AwayFromZero)
+        };
+    }
+
+    public static TenantInvoiceSetting CreateSettingEntity(
+        SaveFinanceInvoiceSettingCommand request,
+        string companyName,
+        string taxpayerNumber,
+        string? registeredAddress,
+        string? registeredPhone,
+        string? bankName,
+        string? bankAccount,
+        decimal autoIssueMaxAmount)
+    {
+        return new TenantInvoiceSetting
+        {
+            CompanyName = companyName,
+            TaxpayerNumber = taxpayerNumber,
+            RegisteredAddress = registeredAddress,
+            RegisteredPhone = registeredPhone,
+            BankName = bankName,
+            BankAccount = bankAccount,
+            EnableElectronicNormalInvoice = request.EnableElectronicNormalInvoice,
+            EnableElectronicSpecialInvoice = request.EnableElectronicSpecialInvoice,
+            EnableAutoIssue = request.EnableAutoIssue,
+            AutoIssueMaxAmount = autoIssueMaxAmount
+        };
+    }
+
+    public static void ApplySettingChanges(
+        TenantInvoiceSetting entity,
+        SaveFinanceInvoiceSettingCommand request,
+        string companyName,
+        string taxpayerNumber,
+        string? registeredAddress,
+        string? registeredPhone,
+        string? bankName,
+        string? bankAccount,
+        decimal autoIssueMaxAmount)
+    {
+        entity.CompanyName = companyName;
+        entity.TaxpayerNumber = taxpayerNumber;
+        entity.RegisteredAddress = registeredAddress;
+        entity.RegisteredPhone = registeredPhone;
+        entity.BankName = bankName;
+        entity.BankAccount = bankAccount;
+        entity.EnableElectronicNormalInvoice = request.EnableElectronicNormalInvoice;
+        entity.EnableElectronicSpecialInvoice = request.EnableElectronicSpecialInvoice;
+        entity.EnableAutoIssue = request.EnableAutoIssue;
+        entity.AutoIssueMaxAmount = autoIssueMaxAmount;
+    }
+
+    public static FinanceInvoiceStatsDto ToStatsDto(TenantInvoiceRecordStatsSnapshot source)
+    {
+        return new FinanceInvoiceStatsDto
+        {
+            CurrentMonthIssuedAmount = decimal.Round(source.CurrentMonthIssuedAmount, 2, MidpointRounding.AwayFromZero),
+            CurrentMonthIssuedCount = source.CurrentMonthIssuedCount,
+            PendingCount = source.PendingCount,
+            VoidedCount = source.VoidedCount
+        };
+    }
+
+    public static FinanceInvoiceRecordDto ToRecordDto(TenantInvoiceRecord source)
+    {
+        return new FinanceInvoiceRecordDto
+        {
+            RecordId = source.Id,
+            InvoiceNo = source.InvoiceNo,
+            ApplicantName = source.ApplicantName,
+            CompanyName = source.CompanyName,
+            InvoiceType = FinanceInvoiceMapping.ToInvoiceTypeText(source.InvoiceType),
+            InvoiceTypeText = FinanceInvoiceMapping.ToInvoiceTypeDisplayText(source.InvoiceType),
+            Amount = decimal.Round(source.Amount, 2, MidpointRounding.AwayFromZero),
+            OrderNo = source.OrderNo,
+            Status = FinanceInvoiceMapping.ToStatusText(source.Status),
+            StatusText = FinanceInvoiceMapping.ToStatusDisplayText(source.Status),
+            AppliedAt = source.AppliedAt
+        };
+    }
+
+    public static FinanceInvoiceRecordDetailDto ToRecordDetailDto(TenantInvoiceRecord source)
+    {
+        return new FinanceInvoiceRecordDetailDto
+        {
+            RecordId = source.Id,
+            InvoiceNo = source.InvoiceNo,
+            ApplicantName = source.ApplicantName,
+            CompanyName = source.CompanyName,
+            TaxpayerNumber = source.TaxpayerNumber,
+            InvoiceType = FinanceInvoiceMapping.ToInvoiceTypeText(source.InvoiceType),
+            InvoiceTypeText = FinanceInvoiceMapping.ToInvoiceTypeDisplayText(source.InvoiceType),
+            Amount = decimal.Round(source.Amount, 2, MidpointRounding.AwayFromZero),
+            OrderNo = source.OrderNo,
+            ContactEmail = source.ContactEmail,
+            ContactPhone = source.ContactPhone,
+            ApplyRemark = source.ApplyRemark,
+            Status = FinanceInvoiceMapping.ToStatusText(source.Status),
+            StatusText = FinanceInvoiceMapping.ToStatusDisplayText(source.Status),
+            AppliedAt = source.AppliedAt,
+            IssuedAt = source.IssuedAt,
+            IssuedByUserId = source.IssuedByUserId,
+            IssueRemark = source.IssueRemark,
+            VoidedAt = source.VoidedAt,
+            VoidedByUserId = source.VoidedByUserId,
+            VoidReason = source.VoidReason
+        };
+    }
+
+    public static FinanceInvoiceIssueResultDto ToIssueResultDto(TenantInvoiceRecord source)
+    {
+        return new FinanceInvoiceIssueResultDto
+        {
+            RecordId = source.Id,
+            InvoiceNo = source.InvoiceNo,
+            CompanyName = source.CompanyName,
+            Amount = decimal.Round(source.Amount, 2, MidpointRounding.AwayFromZero),
+            ContactEmail = source.ContactEmail,
+            IssuedAt = source.IssuedAt ?? DateTime.UtcNow,
+            Status = FinanceInvoiceMapping.ToStatusText(source.Status),
+            StatusText = FinanceInvoiceMapping.ToStatusDisplayText(source.Status)
+        };
+    }
+
+    public static TenantInvoiceRecord CreateRecordEntity(
+        long tenantId,
+        string invoiceNo,
+        string applicantName,
+        string companyName,
+        string? taxpayerNumber,
+        TenantInvoiceType invoiceType,
+        decimal amount,
+        string orderNo,
+        string? contactEmail,
+        string? contactPhone,
+        string? applyRemark,
+        DateTime appliedAt)
+    {
+        return new TenantInvoiceRecord
+        {
+            TenantId = tenantId,
+            InvoiceNo = invoiceNo,
+            ApplicantName = applicantName,
+            CompanyName = companyName,
+            TaxpayerNumber = taxpayerNumber,
+            InvoiceType = invoiceType,
+            Amount = amount,
+            OrderNo = orderNo,
+            ContactEmail = contactEmail,
+            ContactPhone = contactPhone,
+            ApplyRemark = applyRemark,
+            Status = TenantInvoiceStatus.Pending,
+            AppliedAt = appliedAt
+        };
+    }
+}

src/Application/TakeoutSaaS.Application/App/Finance/Invoice/FinanceInvoiceMapping.cs

@@ -0,0 +1,252 @@
+using System.Net.Mail;
+using TakeoutSaaS.Domain.Tenants.Enums;
+using TakeoutSaaS.Shared.Abstractions.Constants;
+using TakeoutSaaS.Shared.Abstractions.Exceptions;
+
+namespace TakeoutSaaS.Application.App.Finance.Invoice;
+
+/// <summary>
+/// 发票模块映射与参数标准化。
+/// </summary>
+internal static class FinanceInvoiceMapping
+{
+    public static TenantInvoiceType ParseInvoiceTypeRequired(string? value)
+    {
+        return ParseInvoiceTypeOptional(value)
+               ?? throw new BusinessException(ErrorCodes.BadRequest, "invoiceType 参数不合法");
+    }
+
+    public static TenantInvoiceType? ParseInvoiceTypeOptional(string? value)
+    {
+        var normalized = (value ?? string.Empty).Trim().ToLowerInvariant();
+        if (string.IsNullOrWhiteSpace(normalized))
+        {
+            return null;
+        }
+
+        return normalized switch
+        {
+            "normal" => TenantInvoiceType.Normal,
+            "special" => TenantInvoiceType.Special,
+            _ => throw new BusinessException(ErrorCodes.BadRequest, "invoiceType 参数不合法")
+        };
+    }
+
+    public static TenantInvoiceStatus? ParseStatusOptional(string? value)
+    {
+        var normalized = (value ?? string.Empty).Trim().ToLowerInvariant();
+        if (string.IsNullOrWhiteSpace(normalized))
+        {
+            return null;
+        }
+
+        return normalized switch
+        {
+            "pending" => TenantInvoiceStatus.Pending,
+            "issued" => TenantInvoiceStatus.Issued,
+            "voided" => TenantInvoiceStatus.Voided,
+            _ => throw new BusinessException(ErrorCodes.BadRequest, "status 参数不合法")
+        };
+    }
+
+    public static string ToInvoiceTypeText(TenantInvoiceType value)
+    {
+        return value switch
+        {
+            TenantInvoiceType.Normal => "normal",
+            TenantInvoiceType.Special => "special",
+            _ => "normal"
+        };
+    }
+
+    public static string ToInvoiceTypeDisplayText(TenantInvoiceType value)
+    {
+        return value switch
+        {
+            TenantInvoiceType.Normal => "普票",
+            TenantInvoiceType.Special => "专票",
+            _ => "普票"
+        };
+    }
+
+    public static string ToStatusText(TenantInvoiceStatus value)
+    {
+        return value switch
+        {
+            TenantInvoiceStatus.Pending => "pending",
+            TenantInvoiceStatus.Issued => "issued",
+            TenantInvoiceStatus.Voided => "voided",
+            _ => "pending"
+        };
+    }
+
+    public static string ToStatusDisplayText(TenantInvoiceStatus value)
+    {
+        return value switch
+        {
+            TenantInvoiceStatus.Pending => "待开票",
+            TenantInvoiceStatus.Issued => "已开票",
+            TenantInvoiceStatus.Voided => "已作废",
+            _ => "待开票"
+        };
+    }
+
+    public static string NormalizeCompanyName(string? value)
+    {
+        return NormalizeRequiredText(value, "companyName", 128);
+    }
+
+    public static string NormalizeApplicantName(string? value)
+    {
+        return NormalizeRequiredText(value, "applicantName", 64);
+    }
+
+    public static string NormalizeOrderNo(string? value)
+    {
+        return NormalizeRequiredText(value, "orderNo", 32);
+    }
+
+    public static string NormalizeTaxpayerNumber(string? value)
+    {
+        return NormalizeRequiredText(value, "taxpayerNumber", 64);
+    }
+
+    public static string? NormalizeOptionalTaxpayerNumber(string? value)
+    {
+        return NormalizeOptionalText(value, "taxpayerNumber", 64);
+    }
+
+    public static string? NormalizeOptionalKeyword(string? value)
+    {
+        return NormalizeOptionalText(value, "keyword", 64);
+    }
+
+    public static string? NormalizeOptionalEmail(string? value)
+    {
+        var normalized = NormalizeOptionalText(value, "contactEmail", 128);
+        if (normalized is null)
+        {
+            return null;
+        }
+
+        try
+        {
+            _ = new MailAddress(normalized);
+            return normalized;
+        }
+        catch (FormatException)
+        {
+            throw new BusinessException(ErrorCodes.BadRequest, "contactEmail 参数不合法");
+        }
+    }
+
+    public static string? NormalizeOptionalPhone(string? value)
+    {
+        return NormalizeOptionalText(value, "contactPhone", 32);
+    }
+
+    public static string? NormalizeOptionalRemark(string? value, string fieldName, int maxLength = 256)
+    {
+        return NormalizeOptionalText(value, fieldName, maxLength);
+    }
+
+    public static string NormalizeVoidReason(string? value)
+    {
+        return NormalizeRequiredText(value, "voidReason", 256);
+    }
+
+    public static decimal NormalizeAmount(decimal value)
+    {
+        if (value <= 0)
+        {
+            throw new BusinessException(ErrorCodes.BadRequest, "amount 参数不合法");
+        }
+
+        return decimal.Round(value, 2, MidpointRounding.AwayFromZero);
+    }
+
+    public static decimal NormalizeAutoIssueMaxAmount(decimal value)
+    {
+        if (value <= 0)
+        {
+            throw new BusinessException(ErrorCodes.BadRequest, "autoIssueMaxAmount 参数不合法");
+        }
+
+        return decimal.Round(value, 2, MidpointRounding.AwayFromZero);
+    }
+
+    public static (DateTime? StartUtc, DateTime? EndUtc) NormalizeDateRange(DateTime? startUtc, DateTime? endUtc)
+    {
+        DateTime? normalizedStart = null;
+        DateTime? normalizedEnd = null;
+
+        if (startUtc.HasValue)
+        {
+            var utcValue = NormalizeUtc(startUtc.Value);
+            normalizedStart = new DateTime(utcValue.Year, utcValue.Month, utcValue.Day, 0, 0, 0, DateTimeKind.Utc);
+        }
+
+        if (endUtc.HasValue)
+        {
+            var utcValue = NormalizeUtc(endUtc.Value);
+            normalizedEnd = new DateTime(utcValue.Year, utcValue.Month, utcValue.Day, 0, 0, 0, DateTimeKind.Utc)
+                .AddDays(1)
+                .AddTicks(-1);
+        }
+
+        if (normalizedStart.HasValue && normalizedEnd.HasValue && normalizedStart > normalizedEnd)
+        {
+            throw new BusinessException(ErrorCodes.BadRequest, "开始日期不能晚于结束日期");
+        }
+
+        return (normalizedStart, normalizedEnd);
+    }
+
+    public static DateTime NormalizeUtc(DateTime value)
+    {
+        return value.Kind switch
+        {
+            DateTimeKind.Utc => value,
+            DateTimeKind.Local => value.ToUniversalTime(),
+            _ => DateTime.SpecifyKind(value, DateTimeKind.Utc)
+        };
+    }
+
+    public static string BuildInvoiceNo(DateTime nowUtc)
+    {
+        var utcNow = NormalizeUtc(nowUtc);
+        return $"INV{utcNow:yyyyMMddHHmmssfff}{Random.Shared.Next(100, 999)}";
+    }
+
+    private static string NormalizeRequiredText(string? value, string fieldName, int maxLength)
+    {
+        var normalized = (value ?? string.Empty).Trim();
+        if (string.IsNullOrWhiteSpace(normalized))
+        {
+            throw new BusinessException(ErrorCodes.BadRequest, $"{fieldName} 参数不合法");
+        }
+
+        if (normalized.Length > maxLength)
+        {
+            throw new BusinessException(ErrorCodes.BadRequest, $"{fieldName} 长度不能超过 {maxLength}");
+        }
+
+        return normalized;
+    }
+
+    private static string? NormalizeOptionalText(string? value, string fieldName, int maxLength)
+    {
+        var normalized = (value ?? string.Empty).Trim();
+        if (normalized.Length == 0)
+        {
+            return null;
+        }
+
+        if (normalized.Length > maxLength)
+        {
+            throw new BusinessException(ErrorCodes.BadRequest, $"{fieldName} 长度不能超过 {maxLength}");
+        }
+
+        return normalized;
+    }
+}

src/Application/TakeoutSaaS.Application/App/Finance/Invoice/Handlers/ApplyFinanceInvoiceRecordCommandHandler.cs

@@ -0,0 +1,107 @@
+using MediatR;
+using TakeoutSaaS.Application.App.Finance.Invoice.Commands;
+using TakeoutSaaS.Application.App.Finance.Invoice.Dto;
+using TakeoutSaaS.Domain.Tenants.Entities;
+using TakeoutSaaS.Domain.Tenants.Enums;
+using TakeoutSaaS.Domain.Tenants.Repositories;
+using TakeoutSaaS.Shared.Abstractions.Constants;
+using TakeoutSaaS.Shared.Abstractions.Exceptions;
+using TakeoutSaaS.Shared.Abstractions.Security;
+using TakeoutSaaS.Shared.Abstractions.Tenancy;
+
+namespace TakeoutSaaS.Application.App.Finance.Invoice.Handlers;
+
+/// <summary>
+/// 申请发票处理器。
+/// </summary>
+public sealed class ApplyFinanceInvoiceRecordCommandHandler(
+    ITenantInvoiceRepository repository,
+    ITenantProvider tenantProvider,
+    ICurrentUserAccessor currentUserAccessor)
+    : IRequestHandler<ApplyFinanceInvoiceRecordCommand, FinanceInvoiceRecordDetailDto>
+{
+    /// <inheritdoc />
+    public async Task<FinanceInvoiceRecordDetailDto> Handle(
+        ApplyFinanceInvoiceRecordCommand request,
+        CancellationToken cancellationToken)
+    {
+        var tenantId = tenantProvider.GetCurrentTenantId();
+        var invoiceType = FinanceInvoiceMapping.ParseInvoiceTypeRequired(request.InvoiceType);
+        var applicantName = FinanceInvoiceMapping.NormalizeApplicantName(request.ApplicantName);
+        var companyName = FinanceInvoiceMapping.NormalizeCompanyName(request.CompanyName);
+        var taxpayerNumber = FinanceInvoiceMapping.NormalizeOptionalTaxpayerNumber(request.TaxpayerNumber);
+        var amount = FinanceInvoiceMapping.NormalizeAmount(request.Amount);
+        var orderNo = FinanceInvoiceMapping.NormalizeOrderNo(request.OrderNo);
+        var contactEmail = FinanceInvoiceMapping.NormalizeOptionalEmail(request.ContactEmail);
+        var contactPhone = FinanceInvoiceMapping.NormalizeOptionalPhone(request.ContactPhone);
+        var applyRemark = FinanceInvoiceMapping.NormalizeOptionalRemark(request.ApplyRemark, "applyRemark");
+        var appliedAt = request.AppliedAt.HasValue
+            ? FinanceInvoiceMapping.NormalizeUtc(request.AppliedAt.Value)
+            : DateTime.UtcNow;
+
+        if (invoiceType == TenantInvoiceType.Special && string.IsNullOrWhiteSpace(taxpayerNumber))
+        {
+            throw new BusinessException(ErrorCodes.BadRequest, "专票必须填写纳税人识别号");
+        }
+
+        var setting = await repository.GetSettingAsync(tenantId, cancellationToken)
+                      ?? throw new BusinessException(ErrorCodes.BadRequest, "请先完成发票设置");
+        EnsureTypeEnabled(setting, invoiceType);
+
+        var invoiceNo = await GenerateInvoiceNoAsync(tenantId, cancellationToken);
+        var entity = FinanceInvoiceDtoFactory.CreateRecordEntity(
+            tenantId,
+            invoiceNo,
+            applicantName,
+            companyName,
+            taxpayerNumber,
+            invoiceType,
+            amount,
+            orderNo,
+            contactEmail,
+            contactPhone,
+            applyRemark,
+            appliedAt);
+
+        if (setting.EnableAutoIssue && amount <= setting.AutoIssueMaxAmount)
+        {
+            entity.Status = TenantInvoiceStatus.Issued;
+            entity.IssuedAt = DateTime.UtcNow;
+            entity.IssuedByUserId = currentUserAccessor.IsAuthenticated ? currentUserAccessor.UserId : null;
+            entity.IssueRemark = "系统自动开票";
+        }
+
+        await repository.AddRecordAsync(entity, cancellationToken);
+        await repository.SaveChangesAsync(cancellationToken);
+
+        return FinanceInvoiceDtoFactory.ToRecordDetailDto(entity);
+    }
+
+    private static void EnsureTypeEnabled(TenantInvoiceSetting setting, TenantInvoiceType type)
+    {
+        if (type == TenantInvoiceType.Normal && !setting.EnableElectronicNormalInvoice)
+        {
+            throw new BusinessException(ErrorCodes.BadRequest, "电子普通发票未启用");
+        }
+
+        if (type == TenantInvoiceType.Special && !setting.EnableElectronicSpecialInvoice)
+        {
+            throw new BusinessException(ErrorCodes.BadRequest, "电子专用发票未启用");
+        }
+    }
+
+    private async Task<string> GenerateInvoiceNoAsync(long tenantId, CancellationToken cancellationToken)
+    {
+        for (var index = 0; index < 10; index += 1)
+        {
+            var invoiceNo = FinanceInvoiceMapping.BuildInvoiceNo(DateTime.UtcNow);
+            var exists = await repository.ExistsInvoiceNoAsync(tenantId, invoiceNo, cancellationToken);
+            if (!exists)
+            {
+                return invoiceNo;
+            }
+        }
+
+        throw new BusinessException(ErrorCodes.BadRequest, "生成发票号码失败，请稍后重试");
+    }
+}

src/Application/TakeoutSaaS.Application/App/Finance/Invoice/Handlers/GetFinanceInvoiceRecordDetailQueryHandler.cs

@@ -0,0 +1,30 @@
+using MediatR;
+using TakeoutSaaS.Application.App.Finance.Invoice.Dto;
+using TakeoutSaaS.Application.App.Finance.Invoice.Queries;
+using TakeoutSaaS.Domain.Tenants.Repositories;
+using TakeoutSaaS.Shared.Abstractions.Constants;
+using TakeoutSaaS.Shared.Abstractions.Exceptions;
+using TakeoutSaaS.Shared.Abstractions.Tenancy;
+
+namespace TakeoutSaaS.Application.App.Finance.Invoice.Handlers;
+
+/// <summary>
+/// 发票记录详情查询处理器。
+/// </summary>
+public sealed class GetFinanceInvoiceRecordDetailQueryHandler(
+    ITenantInvoiceRepository repository,
+    ITenantProvider tenantProvider)
+    : IRequestHandler<GetFinanceInvoiceRecordDetailQuery, FinanceInvoiceRecordDetailDto>
+{
+    /// <inheritdoc />
+    public async Task<FinanceInvoiceRecordDetailDto> Handle(
+        GetFinanceInvoiceRecordDetailQuery request,
+        CancellationToken cancellationToken)
+    {
+        var tenantId = tenantProvider.GetCurrentTenantId();
+        var record = await repository.FindRecordByIdAsync(tenantId, request.RecordId, cancellationToken)
+                     ?? throw new BusinessException(ErrorCodes.NotFound, "发票记录不存在");
+
+        return FinanceInvoiceDtoFactory.ToRecordDetailDto(record);
+    }
+}

src/Application/TakeoutSaaS.Application/App/Finance/Invoice/Handlers/GetFinanceInvoiceRecordListQueryHandler.cs

@@ -0,0 +1,50 @@
+using MediatR;
+using TakeoutSaaS.Application.App.Finance.Invoice.Dto;
+using TakeoutSaaS.Application.App.Finance.Invoice.Queries;
+using TakeoutSaaS.Domain.Tenants.Repositories;
+using TakeoutSaaS.Shared.Abstractions.Tenancy;
+
+namespace TakeoutSaaS.Application.App.Finance.Invoice.Handlers;
+
+/// <summary>
+/// 发票记录分页查询处理器。
+/// </summary>
+public sealed class GetFinanceInvoiceRecordListQueryHandler(
+    ITenantInvoiceRepository repository,
+    ITenantProvider tenantProvider)
+    : IRequestHandler<GetFinanceInvoiceRecordListQuery, FinanceInvoiceRecordListResultDto>
+{
+    /// <inheritdoc />
+    public async Task<FinanceInvoiceRecordListResultDto> Handle(
+        GetFinanceInvoiceRecordListQuery request,
+        CancellationToken cancellationToken)
+    {
+        var tenantId = tenantProvider.GetCurrentTenantId();
+        var keyword = FinanceInvoiceMapping.NormalizeOptionalKeyword(request.Keyword);
+        var (startUtc, endUtc) = FinanceInvoiceMapping.NormalizeDateRange(request.StartDateUtc, request.EndDateUtc);
+        var page = Math.Max(1, request.Page);
+        var pageSize = Math.Clamp(request.PageSize, 1, 200);
+
+        var (items, totalCount) = await repository.SearchRecordsAsync(
+            tenantId,
+            startUtc,
+            endUtc,
+            request.Status,
+            request.InvoiceType,
+            keyword,
+            page,
+            pageSize,
+            cancellationToken);
+
+        var statsSnapshot = await repository.GetStatsAsync(tenantId, DateTime.UtcNow, cancellationToken);
+
+        return new FinanceInvoiceRecordListResultDto
+        {
+            Items = items.Select(FinanceInvoiceDtoFactory.ToRecordDto).ToList(),
+            Page = page,
+            PageSize = pageSize,
+            TotalCount = totalCount,
+            Stats = FinanceInvoiceDtoFactory.ToStatsDto(statsSnapshot)
+        };
+    }
+}

src/Application/TakeoutSaaS.Application/App/Finance/Invoice/Handlers/GetFinanceInvoiceSettingDetailQueryHandler.cs

@@ -0,0 +1,29 @@
+using MediatR;
+using TakeoutSaaS.Application.App.Finance.Invoice.Dto;
+using TakeoutSaaS.Application.App.Finance.Invoice.Queries;
+using TakeoutSaaS.Domain.Tenants.Repositories;
+using TakeoutSaaS.Shared.Abstractions.Tenancy;
+
+namespace TakeoutSaaS.Application.App.Finance.Invoice.Handlers;
+
+/// <summary>
+/// 发票设置详情查询处理器。
+/// </summary>
+public sealed class GetFinanceInvoiceSettingDetailQueryHandler(
+    ITenantInvoiceRepository repository,
+    ITenantProvider tenantProvider)
+    : IRequestHandler<GetFinanceInvoiceSettingDetailQuery, FinanceInvoiceSettingDto>
+{
+    /// <inheritdoc />
+    public async Task<FinanceInvoiceSettingDto> Handle(
+        GetFinanceInvoiceSettingDetailQuery request,
+        CancellationToken cancellationToken)
+    {
+        var tenantId = tenantProvider.GetCurrentTenantId();
+        var setting = await repository.GetSettingAsync(tenantId, cancellationToken);
+
+        return setting is null
+            ? FinanceInvoiceDtoFactory.CreateDefaultSettingDto()
+            : FinanceInvoiceDtoFactory.ToSettingDto(setting);
+    }
+}

src/Application/TakeoutSaaS.Application/App/Finance/Invoice/Handlers/IssueFinanceInvoiceRecordCommandHandler.cs

@@ -0,0 +1,65 @@
+using MediatR;
+using TakeoutSaaS.Application.App.Finance.Invoice.Commands;
+using TakeoutSaaS.Application.App.Finance.Invoice.Dto;
+using TakeoutSaaS.Domain.Tenants.Entities;
+using TakeoutSaaS.Domain.Tenants.Enums;
+using TakeoutSaaS.Domain.Tenants.Repositories;
+using TakeoutSaaS.Shared.Abstractions.Constants;
+using TakeoutSaaS.Shared.Abstractions.Exceptions;
+using TakeoutSaaS.Shared.Abstractions.Security;
+using TakeoutSaaS.Shared.Abstractions.Tenancy;
+
+namespace TakeoutSaaS.Application.App.Finance.Invoice.Handlers;
+
+/// <summary>
+/// 发票开票处理器。
+/// </summary>
+public sealed class IssueFinanceInvoiceRecordCommandHandler(
+    ITenantInvoiceRepository repository,
+    ITenantProvider tenantProvider,
+    ICurrentUserAccessor currentUserAccessor)
+    : IRequestHandler<IssueFinanceInvoiceRecordCommand, FinanceInvoiceIssueResultDto>
+{
+    /// <inheritdoc />
+    public async Task<FinanceInvoiceIssueResultDto> Handle(
+        IssueFinanceInvoiceRecordCommand request,
+        CancellationToken cancellationToken)
+    {
+        var tenantId = tenantProvider.GetCurrentTenantId();
+        var record = await repository.FindRecordByIdAsync(tenantId, request.RecordId, cancellationToken)
+                     ?? throw new BusinessException(ErrorCodes.NotFound, "发票记录不存在");
+
+        if (record.Status != TenantInvoiceStatus.Pending)
+        {
+            throw new BusinessException(ErrorCodes.BadRequest, "仅待开票记录允许开票");
+        }
+
+        var setting = await repository.GetSettingAsync(tenantId, cancellationToken)
+                      ?? throw new BusinessException(ErrorCodes.BadRequest, "请先完成发票设置");
+        EnsureTypeEnabled(setting, record.InvoiceType);
+
+        record.ContactEmail = FinanceInvoiceMapping.NormalizeOptionalEmail(request.ContactEmail) ?? record.ContactEmail;
+        record.IssueRemark = FinanceInvoiceMapping.NormalizeOptionalRemark(request.IssueRemark, "issueRemark");
+        record.Status = TenantInvoiceStatus.Issued;
+        record.IssuedAt = DateTime.UtcNow;
+        record.IssuedByUserId = currentUserAccessor.IsAuthenticated ? currentUserAccessor.UserId : null;
+
+        await repository.UpdateRecordAsync(record, cancellationToken);
+        await repository.SaveChangesAsync(cancellationToken);
+
+        return FinanceInvoiceDtoFactory.ToIssueResultDto(record);
+    }
+
+    private static void EnsureTypeEnabled(TenantInvoiceSetting setting, TenantInvoiceType type)
+    {
+        if (type == TenantInvoiceType.Normal && !setting.EnableElectronicNormalInvoice)
+        {
+            throw new BusinessException(ErrorCodes.BadRequest, "电子普通发票未启用");
+        }
+
+        if (type == TenantInvoiceType.Special && !setting.EnableElectronicSpecialInvoice)
+        {
+            throw new BusinessException(ErrorCodes.BadRequest, "电子专用发票未启用");
+        }
+    }
+}

src/Application/TakeoutSaaS.Application/App/Finance/Invoice/Handlers/SaveFinanceInvoiceSettingCommandHandler.cs

@@ -0,0 +1,72 @@
+using MediatR;
+using TakeoutSaaS.Application.App.Finance.Invoice.Commands;
+using TakeoutSaaS.Application.App.Finance.Invoice.Dto;
+using TakeoutSaaS.Domain.Tenants.Repositories;
+using TakeoutSaaS.Shared.Abstractions.Constants;
+using TakeoutSaaS.Shared.Abstractions.Exceptions;
+using TakeoutSaaS.Shared.Abstractions.Tenancy;
+
+namespace TakeoutSaaS.Application.App.Finance.Invoice.Handlers;
+
+/// <summary>
+/// 保存发票设置处理器。
+/// </summary>
+public sealed class SaveFinanceInvoiceSettingCommandHandler(
+    ITenantInvoiceRepository repository,
+    ITenantProvider tenantProvider)
+    : IRequestHandler<SaveFinanceInvoiceSettingCommand, FinanceInvoiceSettingDto>
+{
+    /// <inheritdoc />
+    public async Task<FinanceInvoiceSettingDto> Handle(
+        SaveFinanceInvoiceSettingCommand request,
+        CancellationToken cancellationToken)
+    {
+        if (!request.EnableElectronicNormalInvoice && !request.EnableElectronicSpecialInvoice)
+        {
+            throw new BusinessException(ErrorCodes.BadRequest, "至少启用一种发票类型");
+        }
+
+        var tenantId = tenantProvider.GetCurrentTenantId();
+        var companyName = FinanceInvoiceMapping.NormalizeCompanyName(request.CompanyName);
+        var taxpayerNumber = FinanceInvoiceMapping.NormalizeTaxpayerNumber(request.TaxpayerNumber);
+        var registeredAddress = FinanceInvoiceMapping.NormalizeOptionalRemark(request.RegisteredAddress, "registeredAddress", 256);
+        var registeredPhone = FinanceInvoiceMapping.NormalizeOptionalPhone(request.RegisteredPhone);
+        var bankName = FinanceInvoiceMapping.NormalizeOptionalRemark(request.BankName, "bankName", 128);
+        var bankAccount = FinanceInvoiceMapping.NormalizeOptionalRemark(request.BankAccount, "bankAccount", 64);
+        var autoIssueMaxAmount = FinanceInvoiceMapping.NormalizeAutoIssueMaxAmount(request.AutoIssueMaxAmount);
+
+        var setting = await repository.GetSettingAsync(tenantId, cancellationToken);
+        if (setting is null)
+        {
+            setting = FinanceInvoiceDtoFactory.CreateSettingEntity(
+                request,
+                companyName,
+                taxpayerNumber,
+                registeredAddress,
+                registeredPhone,
+                bankName,
+                bankAccount,
+                autoIssueMaxAmount);
+
+            await repository.AddSettingAsync(setting, cancellationToken);
+        }
+        else
+        {
+            FinanceInvoiceDtoFactory.ApplySettingChanges(
+                setting,
+                request,
+                companyName,
+                taxpayerNumber,
+                registeredAddress,
+                registeredPhone,
+                bankName,
+                bankAccount,
+                autoIssueMaxAmount);
+
+            await repository.UpdateSettingAsync(setting, cancellationToken);
+        }
+
+        await repository.SaveChangesAsync(cancellationToken);
+        return FinanceInvoiceDtoFactory.ToSettingDto(setting);
+    }
+}

src/Application/TakeoutSaaS.Application/App/Finance/Invoice/Handlers/VoidFinanceInvoiceRecordCommandHandler.cs

@@ -0,0 +1,46 @@
+using MediatR;
+using TakeoutSaaS.Application.App.Finance.Invoice.Commands;
+using TakeoutSaaS.Application.App.Finance.Invoice.Dto;
+using TakeoutSaaS.Domain.Tenants.Enums;
+using TakeoutSaaS.Domain.Tenants.Repositories;
+using TakeoutSaaS.Shared.Abstractions.Constants;
+using TakeoutSaaS.Shared.Abstractions.Exceptions;
+using TakeoutSaaS.Shared.Abstractions.Security;
+using TakeoutSaaS.Shared.Abstractions.Tenancy;
+
+namespace TakeoutSaaS.Application.App.Finance.Invoice.Handlers;
+
+/// <summary>
+/// 发票作废处理器。
+/// </summary>
+public sealed class VoidFinanceInvoiceRecordCommandHandler(
+    ITenantInvoiceRepository repository,
+    ITenantProvider tenantProvider,
+    ICurrentUserAccessor currentUserAccessor)
+    : IRequestHandler<VoidFinanceInvoiceRecordCommand, FinanceInvoiceRecordDetailDto>
+{
+    /// <inheritdoc />
+    public async Task<FinanceInvoiceRecordDetailDto> Handle(
+        VoidFinanceInvoiceRecordCommand request,
+        CancellationToken cancellationToken)
+    {
+        var tenantId = tenantProvider.GetCurrentTenantId();
+        var record = await repository.FindRecordByIdAsync(tenantId, request.RecordId, cancellationToken)
+                     ?? throw new BusinessException(ErrorCodes.NotFound, "发票记录不存在");
+
+        if (record.Status != TenantInvoiceStatus.Issued)
+        {
+            throw new BusinessException(ErrorCodes.BadRequest, "仅已开票记录允许作废");
+        }
+
+        record.Status = TenantInvoiceStatus.Voided;
+        record.VoidReason = FinanceInvoiceMapping.NormalizeVoidReason(request.VoidReason);
+        record.VoidedAt = DateTime.UtcNow;
+        record.VoidedByUserId = currentUserAccessor.IsAuthenticated ? currentUserAccessor.UserId : null;
+
+        await repository.UpdateRecordAsync(record, cancellationToken);
+        await repository.SaveChangesAsync(cancellationToken);
+
+        return FinanceInvoiceDtoFactory.ToRecordDetailDto(record);
+    }
+}

src/Application/TakeoutSaaS.Application/App/Finance/Invoice/Queries/GetFinanceInvoiceRecordDetailQuery.cs

@@ -0,0 +1,15 @@
+using MediatR;
+using TakeoutSaaS.Application.App.Finance.Invoice.Dto;
+
+namespace TakeoutSaaS.Application.App.Finance.Invoice.Queries;
+
+/// <summary>
+/// 查询发票记录详情。
+/// </summary>
+public sealed class GetFinanceInvoiceRecordDetailQuery : IRequest<FinanceInvoiceRecordDetailDto>
+{
+    /// <summary>
+    /// 发票记录 ID。
+    /// </summary>
+    public long RecordId { get; init; }
+}

src/Application/TakeoutSaaS.Application/App/Finance/Invoice/Queries/GetFinanceInvoiceRecordListQuery.cs

@@ -0,0 +1,46 @@
+using MediatR;
+using TakeoutSaaS.Application.App.Finance.Invoice.Dto;
+using TakeoutSaaS.Domain.Tenants.Enums;
+
+namespace TakeoutSaaS.Application.App.Finance.Invoice.Queries;
+
+/// <summary>
+/// 查询发票记录分页。
+/// </summary>
+public sealed class GetFinanceInvoiceRecordListQuery : IRequest<FinanceInvoiceRecordListResultDto>
+{
+    /// <summary>
+    /// 开始日期（UTC）。
+    /// </summary>
+    public DateTime? StartDateUtc { get; init; }
+
+    /// <summary>
+    /// 结束日期（UTC）。
+    /// </summary>
+    public DateTime? EndDateUtc { get; init; }
+
+    /// <summary>
+    /// 状态筛选。
+    /// </summary>
+    public TenantInvoiceStatus? Status { get; init; }
+
+    /// <summary>
+    /// 类型筛选。
+    /// </summary>
+    public TenantInvoiceType? InvoiceType { get; init; }
+
+    /// <summary>
+    /// 关键词。
+    /// </summary>
+    public string? Keyword { get; init; }
+
+    /// <summary>
+    /// 页码。
+    /// </summary>
+    public int Page { get; init; } = 1;
+
+    /// <summary>
+    /// 每页条数。
+    /// </summary>
+    public int PageSize { get; init; } = 20;
+}

src/Application/TakeoutSaaS.Application/App/Finance/Invoice/Queries/GetFinanceInvoiceSettingDetailQuery.cs

@@ -0,0 +1,11 @@
+using MediatR;
+using TakeoutSaaS.Application.App.Finance.Invoice.Dto;
+
+namespace TakeoutSaaS.Application.App.Finance.Invoice.Queries;
+
+/// <summary>
+/// 查询发票设置详情。
+/// </summary>
+public sealed class GetFinanceInvoiceSettingDetailQuery : IRequest<FinanceInvoiceSettingDto>
+{
+}

src/Domain/TakeoutSaaS.Domain/Tenants/Entities/TenantInvoiceRecord.cs

@@ -0,0 +1,100 @@
+using TakeoutSaaS.Domain.Tenants.Enums;
+using TakeoutSaaS.Shared.Abstractions.Entities;
+
+namespace TakeoutSaaS.Domain.Tenants.Entities;
+
+/// <summary>
+/// 租户发票记录。
+/// </summary>
+public sealed class TenantInvoiceRecord : MultiTenantEntityBase
+{
+    /// <summary>
+    /// 发票号码。
+    /// </summary>
+    public string InvoiceNo { get; set; } = string.Empty;
+
+    /// <summary>
+    /// 申请人。
+    /// </summary>
+    public string ApplicantName { get; set; } = string.Empty;
+
+    /// <summary>
+    /// 开票抬头（公司名）。
+    /// </summary>
+    public string CompanyName { get; set; } = string.Empty;
+
+    /// <summary>
+    /// 纳税人识别号快照。
+    /// </summary>
+    public string? TaxpayerNumber { get; set; }
+
+    /// <summary>
+    /// 发票类型。
+    /// </summary>
+    public TenantInvoiceType InvoiceType { get; set; } = TenantInvoiceType.Normal;
+
+    /// <summary>
+    /// 开票金额。
+    /// </summary>
+    public decimal Amount { get; set; }
+
+    /// <summary>
+    /// 关联订单号。
+    /// </summary>
+    public string OrderNo { get; set; } = string.Empty;
+
+    /// <summary>
+    /// 接收邮箱。
+    /// </summary>
+    public string? ContactEmail { get; set; }
+
+    /// <summary>
+    /// 联系电话。
+    /// </summary>
+    public string? ContactPhone { get; set; }
+
+    /// <summary>
+    /// 申请备注。
+    /// </summary>
+    public string? ApplyRemark { get; set; }
+
+    /// <summary>
+    /// 发票状态。
+    /// </summary>
+    public TenantInvoiceStatus Status { get; set; } = TenantInvoiceStatus.Pending;
+
+    /// <summary>
+    /// 申请时间（UTC）。
+    /// </summary>
+    public DateTime AppliedAt { get; set; } = DateTime.UtcNow;
+
+    /// <summary>
+    /// 开票时间（UTC）。
+    /// </summary>
+    public DateTime? IssuedAt { get; set; }
+
+    /// <summary>
+    /// 开票人 ID。
+    /// </summary>
+    public long? IssuedByUserId { get; set; }
+
+    /// <summary>
+    /// 开票备注。
+    /// </summary>
+    public string? IssueRemark { get; set; }
+
+    /// <summary>
+    /// 作废时间（UTC）。
+    /// </summary>
+    public DateTime? VoidedAt { get; set; }
+
+    /// <summary>
+    /// 作废人 ID。
+    /// </summary>
+    public long? VoidedByUserId { get; set; }
+
+    /// <summary>
+    /// 作废原因。
+    /// </summary>
+    public string? VoidReason { get; set; }
+}

src/Domain/TakeoutSaaS.Domain/Tenants/Entities/TenantInvoiceSetting.cs

@@ -0,0 +1,59 @@
+using TakeoutSaaS.Shared.Abstractions.Entities;
+
+namespace TakeoutSaaS.Domain.Tenants.Entities;
+
+/// <summary>
+/// 租户发票开票基础设置。
+/// </summary>
+public sealed class TenantInvoiceSetting : MultiTenantEntityBase
+{
+    /// <summary>
+    /// 企业名称。
+    /// </summary>
+    public string CompanyName { get; set; } = string.Empty;
+
+    /// <summary>
+    /// 纳税人识别号。
+    /// </summary>
+    public string TaxpayerNumber { get; set; } = string.Empty;
+
+    /// <summary>
+    /// 注册地址。
+    /// </summary>
+    public string? RegisteredAddress { get; set; }
+
+    /// <summary>
+    /// 注册电话。
+    /// </summary>
+    public string? RegisteredPhone { get; set; }
+
+    /// <summary>
+    /// 开户银行。
+    /// </summary>
+    public string? BankName { get; set; }
+
+    /// <summary>
+    /// 银行账号。
+    /// </summary>
+    public string? BankAccount { get; set; }
+
+    /// <summary>
+    /// 是否启用电子普通发票。
+    /// </summary>
+    public bool EnableElectronicNormalInvoice { get; set; } = true;
+
+    /// <summary>
+    /// 是否启用电子专用发票。
+    /// </summary>
+    public bool EnableElectronicSpecialInvoice { get; set; }
+
+    /// <summary>
+    /// 是否启用自动开票。
+    /// </summary>
+    public bool EnableAutoIssue { get; set; }
+
+    /// <summary>
+    /// 自动开票单张最大金额。
+    /// </summary>
+    public decimal AutoIssueMaxAmount { get; set; } = 10_000m;
+}

src/Domain/TakeoutSaaS.Domain/Tenants/Enums/TenantInvoiceStatus.cs

@@ -0,0 +1,22 @@
+namespace TakeoutSaaS.Domain.Tenants.Enums;
+
+/// <summary>
+/// 租户发票状态。
+/// </summary>
+public enum TenantInvoiceStatus
+{
+    /// <summary>
+    /// 待开票。
+    /// </summary>
+    Pending = 1,
+
+    /// <summary>
+    /// 已开票。
+    /// </summary>
+    Issued = 2,
+
+    /// <summary>
+    /// 已作废。
+    /// </summary>
+    Voided = 3
+}

src/Domain/TakeoutSaaS.Domain/Tenants/Enums/TenantInvoiceType.cs

@@ -0,0 +1,17 @@
+namespace TakeoutSaaS.Domain.Tenants.Enums;
+
+/// <summary>
+/// 租户发票类型。
+/// </summary>
+public enum TenantInvoiceType
+{
+    /// <summary>
+    /// 电子普通发票。
+    /// </summary>
+    Normal = 1,
+
+    /// <summary>
+    /// 电子专用发票。
+    /// </summary>
+    Special = 2
+}

src/Domain/TakeoutSaaS.Domain/Tenants/Repositories/ITenantInvoiceRepository.cs

@@ -0,0 +1,104 @@
+using TakeoutSaaS.Domain.Tenants.Entities;
+using TakeoutSaaS.Domain.Tenants.Enums;
+
+namespace TakeoutSaaS.Domain.Tenants.Repositories;
+
+/// <summary>
+/// 租户发票仓储契约。
+/// </summary>
+public interface ITenantInvoiceRepository
+{
+    /// <summary>
+    /// 查询租户发票设置。
+    /// </summary>
+    Task<TenantInvoiceSetting?> GetSettingAsync(long tenantId, CancellationToken cancellationToken = default);
+
+    /// <summary>
+    /// 新增发票设置。
+    /// </summary>
+    Task AddSettingAsync(TenantInvoiceSetting entity, CancellationToken cancellationToken = default);
+
+    /// <summary>
+    /// 更新发票设置。
+    /// </summary>
+    Task UpdateSettingAsync(TenantInvoiceSetting entity, CancellationToken cancellationToken = default);
+
+    /// <summary>
+    /// 分页查询发票记录。
+    /// </summary>
+    Task<(IReadOnlyList<TenantInvoiceRecord> Items, int TotalCount)> SearchRecordsAsync(
+        long tenantId,
+        DateTime? startUtc,
+        DateTime? endUtc,
+        TenantInvoiceStatus? status,
+        TenantInvoiceType? invoiceType,
+        string? keyword,
+        int page,
+        int pageSize,
+        CancellationToken cancellationToken = default);
+
+    /// <summary>
+    /// 获取发票页统计。
+    /// </summary>
+    Task<TenantInvoiceRecordStatsSnapshot> GetStatsAsync(
+        long tenantId,
+        DateTime nowUtc,
+        CancellationToken cancellationToken = default);
+
+    /// <summary>
+    /// 根据标识查询发票记录。
+    /// </summary>
+    Task<TenantInvoiceRecord?> FindRecordByIdAsync(
+        long tenantId,
+        long recordId,
+        CancellationToken cancellationToken = default);
+
+    /// <summary>
+    /// 判断租户下发票号码是否已存在。
+    /// </summary>
+    Task<bool> ExistsInvoiceNoAsync(
+        long tenantId,
+        string invoiceNo,
+        CancellationToken cancellationToken = default);
+
+    /// <summary>
+    /// 新增发票记录。
+    /// </summary>
+    Task AddRecordAsync(TenantInvoiceRecord entity, CancellationToken cancellationToken = default);
+
+    /// <summary>
+    /// 更新发票记录。
+    /// </summary>
+    Task UpdateRecordAsync(TenantInvoiceRecord entity, CancellationToken cancellationToken = default);
+
+    /// <summary>
+    /// 持久化变更。
+    /// </summary>
+    Task SaveChangesAsync(CancellationToken cancellationToken = default);
+}
+
+/// <summary>
+/// 发票页面统计快照。
+/// </summary>
+public sealed record TenantInvoiceRecordStatsSnapshot
+{
+    /// <summary>
+    /// 本月已开票金额。
+    /// </summary>
+    public decimal CurrentMonthIssuedAmount { get; init; }
+
+    /// <summary>
+    /// 本月已开票张数。
+    /// </summary>
+    public int CurrentMonthIssuedCount { get; init; }
+
+    /// <summary>
+    /// 待开票张数。
+    /// </summary>
+    public int PendingCount { get; init; }
+
+    /// <summary>
+    /// 已作废张数。
+    /// </summary>
+    public int VoidedCount { get; init; }
+}

src/Infrastructure/TakeoutSaaS.Infrastructure/App/Extensions/AppServiceCollectionExtensions.cs

@@ -69,6 +69,7 @@ public static class AppServiceCollectionExtensions
         services.AddScoped<ITenantQuotaUsageRepository, EfTenantQuotaUsageRepository>();
         services.AddScoped<ITenantQuotaUsageHistoryRepository, EfTenantQuotaUsageHistoryRepository>();
         services.AddScoped<ITenantVisibilityRoleRuleRepository, TenantVisibilityRoleRuleRepository>();
+        services.AddScoped<ITenantInvoiceRepository, EfTenantInvoiceRepository>();
         services.AddScoped<IInventoryRepository, EfInventoryRepository>();
         services.AddScoped<IQuotaPackageRepository, EfQuotaPackageRepository>();
         services.AddScoped<IStatisticsRepository, EfStatisticsRepository>();

src/Infrastructure/TakeoutSaaS.Infrastructure/App/Persistence/TakeoutAppDbContext.cs

@@ -95,6 +95,14 @@ public sealed class TakeoutAppDbContext(
     /// </summary>
     public DbSet<TenantVisibilityRoleRule> TenantVisibilityRoleRules => Set<TenantVisibilityRoleRule>();
     /// <summary>
+    /// 租户发票设置。
+    /// </summary>
+    public DbSet<TenantInvoiceSetting> TenantInvoiceSettings => Set<TenantInvoiceSetting>();
+    /// <summary>
+    /// 租户发票记录。
+    /// </summary>
+    public DbSet<TenantInvoiceRecord> TenantInvoiceRecords => Set<TenantInvoiceRecord>();
+    /// <summary>
     /// 成本录入汇总。
     /// </summary>
     public DbSet<FinanceCostEntry> FinanceCostEntries => Set<FinanceCostEntry>();
@@ -534,6 +542,8 @@ public sealed class TakeoutAppDbContext(
         ConfigureTenantAnnouncementRead(modelBuilder.Entity<TenantAnnouncementRead>());
         ConfigureTenantVerificationProfile(modelBuilder.Entity<TenantVerificationProfile>());
         ConfigureTenantVisibilityRoleRule(modelBuilder.Entity<TenantVisibilityRoleRule>());
+        ConfigureTenantInvoiceSetting(modelBuilder.Entity<TenantInvoiceSetting>());
+        ConfigureTenantInvoiceRecord(modelBuilder.Entity<TenantInvoiceRecord>());
         ConfigureFinanceCostEntry(modelBuilder.Entity<FinanceCostEntry>());
         ConfigureFinanceCostEntryItem(modelBuilder.Entity<FinanceCostEntryItem>());
         ConfigureQuotaPackage(modelBuilder.Entity<QuotaPackage>());
@@ -1053,6 +1063,52 @@ public sealed class TakeoutAppDbContext(
         builder.HasIndex(x => x.TenantId).IsUnique();
     }
 
+    private static void ConfigureTenantInvoiceSetting(EntityTypeBuilder<TenantInvoiceSetting> builder)
+    {
+        builder.ToTable("finance_invoice_settings");
+        builder.HasKey(x => x.Id);
+        builder.Property(x => x.TenantId).IsRequired();
+        builder.Property(x => x.CompanyName).HasMaxLength(128).IsRequired();
+        builder.Property(x => x.TaxpayerNumber).HasMaxLength(64).IsRequired();
+        builder.Property(x => x.RegisteredAddress).HasMaxLength(256);
+        builder.Property(x => x.RegisteredPhone).HasMaxLength(32);
+        builder.Property(x => x.BankName).HasMaxLength(128);
+        builder.Property(x => x.BankAccount).HasMaxLength(64);
+        builder.Property(x => x.EnableElectronicNormalInvoice).IsRequired();
+        builder.Property(x => x.EnableElectronicSpecialInvoice).IsRequired();
+        builder.Property(x => x.EnableAutoIssue).IsRequired();
+        builder.Property(x => x.AutoIssueMaxAmount).HasPrecision(18, 2).IsRequired();
+
+        builder.HasIndex(x => x.TenantId).IsUnique();
+    }
+
+    private static void ConfigureTenantInvoiceRecord(EntityTypeBuilder<TenantInvoiceRecord> builder)
+    {
+        builder.ToTable("finance_invoice_records");
+        builder.HasKey(x => x.Id);
+        builder.Property(x => x.TenantId).IsRequired();
+        builder.Property(x => x.InvoiceNo).HasMaxLength(32).IsRequired();
+        builder.Property(x => x.ApplicantName).HasMaxLength(64).IsRequired();
+        builder.Property(x => x.CompanyName).HasMaxLength(128).IsRequired();
+        builder.Property(x => x.TaxpayerNumber).HasMaxLength(64);
+        builder.Property(x => x.InvoiceType).HasConversion<int>().IsRequired();
+        builder.Property(x => x.Amount).HasPrecision(18, 2).IsRequired();
+        builder.Property(x => x.OrderNo).HasMaxLength(32).IsRequired();
+        builder.Property(x => x.ContactEmail).HasMaxLength(128);
+        builder.Property(x => x.ContactPhone).HasMaxLength(32);
+        builder.Property(x => x.ApplyRemark).HasMaxLength(256);
+        builder.Property(x => x.Status).HasConversion<int>().IsRequired();
+        builder.Property(x => x.AppliedAt).IsRequired();
+        builder.Property(x => x.IssueRemark).HasMaxLength(256);
+        builder.Property(x => x.VoidReason).HasMaxLength(256);
+
+        builder.HasIndex(x => new { x.TenantId, x.InvoiceNo }).IsUnique();
+        builder.HasIndex(x => new { x.TenantId, x.OrderNo });
+        builder.HasIndex(x => new { x.TenantId, x.Status, x.AppliedAt });
+        builder.HasIndex(x => new { x.TenantId, x.Status, x.IssuedAt });
+        builder.HasIndex(x => new { x.TenantId, x.InvoiceType, x.AppliedAt });
+    }
+
     private static void ConfigureFinanceCostEntry(EntityTypeBuilder<FinanceCostEntry> builder)
     {
         builder.ToTable("finance_cost_entries");

src/Infrastructure/TakeoutSaaS.Infrastructure/App/Repositories/EfTenantInvoiceRepository.cs

@@ -0,0 +1,215 @@
+using Microsoft.EntityFrameworkCore;
+using TakeoutSaaS.Domain.Tenants.Entities;
+using TakeoutSaaS.Domain.Tenants.Enums;
+using TakeoutSaaS.Domain.Tenants.Repositories;
+using TakeoutSaaS.Infrastructure.App.Persistence;
+
+namespace TakeoutSaaS.Infrastructure.App.Repositories;
+
+/// <summary>
+/// 租户发票仓储 EF Core 实现。
+/// </summary>
+public sealed class EfTenantInvoiceRepository(TakeoutAppDbContext context) : ITenantInvoiceRepository
+{
+    /// <inheritdoc />
+    public Task<TenantInvoiceSetting?> GetSettingAsync(long tenantId, CancellationToken cancellationToken = default)
+    {
+        return context.TenantInvoiceSettings
+            .Where(item => item.TenantId == tenantId)
+            .FirstOrDefaultAsync(cancellationToken);
+    }
+
+    /// <inheritdoc />
+    public Task AddSettingAsync(TenantInvoiceSetting entity, CancellationToken cancellationToken = default)
+    {
+        return context.TenantInvoiceSettings.AddAsync(entity, cancellationToken).AsTask();
+    }
+
+    /// <inheritdoc />
+    public Task UpdateSettingAsync(TenantInvoiceSetting entity, CancellationToken cancellationToken = default)
+    {
+        context.TenantInvoiceSettings.Update(entity);
+        return Task.CompletedTask;
+    }
+
+    /// <inheritdoc />
+    public async Task<(IReadOnlyList<TenantInvoiceRecord> Items, int TotalCount)> SearchRecordsAsync(
+        long tenantId,
+        DateTime? startUtc,
+        DateTime? endUtc,
+        TenantInvoiceStatus? status,
+        TenantInvoiceType? invoiceType,
+        string? keyword,
+        int page,
+        int pageSize,
+        CancellationToken cancellationToken = default)
+    {
+        var normalizedPage = Math.Max(1, page);
+        var normalizedPageSize = Math.Clamp(pageSize, 1, 500);
+
+        var query = BuildRecordQuery(tenantId, startUtc, endUtc, status, invoiceType, keyword);
+
+        var totalCount = await query.CountAsync(cancellationToken);
+        if (totalCount == 0)
+        {
+            return ([], 0);
+        }
+
+        var items = await query
+            .OrderByDescending(item => item.AppliedAt)
+            .ThenByDescending(item => item.Id)
+            .Skip((normalizedPage - 1) * normalizedPageSize)
+            .Take(normalizedPageSize)
+            .ToListAsync(cancellationToken);
+
+        return (items, totalCount);
+    }
+
+    /// <inheritdoc />
+    public async Task<TenantInvoiceRecordStatsSnapshot> GetStatsAsync(
+        long tenantId,
+        DateTime nowUtc,
+        CancellationToken cancellationToken = default)
+    {
+        var utcNow = NormalizeUtc(nowUtc);
+        var monthStart = new DateTime(utcNow.Year, utcNow.Month, 1, 0, 0, 0, DateTimeKind.Utc);
+
+        var summary = await context.TenantInvoiceRecords
+            .AsNoTracking()
+            .Where(item => item.TenantId == tenantId)
+            .GroupBy(_ => 1)
+            .Select(group => new
+            {
+                CurrentMonthIssuedAmount = group
+                    .Where(item =>
+                        item.Status == TenantInvoiceStatus.Issued &&
+                        item.IssuedAt.HasValue &&
+                        item.IssuedAt.Value >= monthStart &&
+                        item.IssuedAt.Value <= utcNow)
+                    .Sum(item => item.Amount),
+                CurrentMonthIssuedCount = group
+                    .Count(item =>
+                        item.Status == TenantInvoiceStatus.Issued &&
+                        item.IssuedAt.HasValue &&
+                        item.IssuedAt.Value >= monthStart &&
+                        item.IssuedAt.Value <= utcNow),
+                PendingCount = group.Count(item => item.Status == TenantInvoiceStatus.Pending),
+                VoidedCount = group.Count(item => item.Status == TenantInvoiceStatus.Voided)
+            })
+            .FirstOrDefaultAsync(cancellationToken);
+
+        if (summary is null)
+        {
+            return new TenantInvoiceRecordStatsSnapshot();
+        }
+
+        return new TenantInvoiceRecordStatsSnapshot
+        {
+            CurrentMonthIssuedAmount = summary.CurrentMonthIssuedAmount,
+            CurrentMonthIssuedCount = summary.CurrentMonthIssuedCount,
+            PendingCount = summary.PendingCount,
+            VoidedCount = summary.VoidedCount
+        };
+    }
+
+    /// <inheritdoc />
+    public Task<TenantInvoiceRecord?> FindRecordByIdAsync(
+        long tenantId,
+        long recordId,
+        CancellationToken cancellationToken = default)
+    {
+        return context.TenantInvoiceRecords
+            .Where(item => item.TenantId == tenantId && item.Id == recordId)
+            .FirstOrDefaultAsync(cancellationToken);
+    }
+
+    /// <inheritdoc />
+    public Task<bool> ExistsInvoiceNoAsync(
+        long tenantId,
+        string invoiceNo,
+        CancellationToken cancellationToken = default)
+    {
+        return context.TenantInvoiceRecords
+            .AsNoTracking()
+            .AnyAsync(
+                item => item.TenantId == tenantId && item.InvoiceNo == invoiceNo,
+                cancellationToken);
+    }
+
+    /// <inheritdoc />
+    public Task AddRecordAsync(TenantInvoiceRecord entity, CancellationToken cancellationToken = default)
+    {
+        return context.TenantInvoiceRecords.AddAsync(entity, cancellationToken).AsTask();
+    }
+
+    /// <inheritdoc />
+    public Task UpdateRecordAsync(TenantInvoiceRecord entity, CancellationToken cancellationToken = default)
+    {
+        context.TenantInvoiceRecords.Update(entity);
+        return Task.CompletedTask;
+    }
+
+    /// <inheritdoc />
+    public Task SaveChangesAsync(CancellationToken cancellationToken = default)
+    {
+        return context.SaveChangesAsync(cancellationToken);
+    }
+
+    private IQueryable<TenantInvoiceRecord> BuildRecordQuery(
+        long tenantId,
+        DateTime? startUtc,
+        DateTime? endUtc,
+        TenantInvoiceStatus? status,
+        TenantInvoiceType? invoiceType,
+        string? keyword)
+    {
+        var query = context.TenantInvoiceRecords
+            .AsNoTracking()
+            .Where(item => item.TenantId == tenantId);
+
+        if (startUtc.HasValue)
+        {
+            var normalizedStart = NormalizeUtc(startUtc.Value);
+            query = query.Where(item => item.AppliedAt >= normalizedStart);
+        }
+
+        if (endUtc.HasValue)
+        {
+            var normalizedEnd = NormalizeUtc(endUtc.Value);
+            query = query.Where(item => item.AppliedAt <= normalizedEnd);
+        }
+
+        if (status.HasValue)
+        {
+            query = query.Where(item => item.Status == status.Value);
+        }
+
+        if (invoiceType.HasValue)
+        {
+            query = query.Where(item => item.InvoiceType == invoiceType.Value);
+        }
+
+        var normalizedKeyword = (keyword ?? string.Empty).Trim();
+        if (!string.IsNullOrWhiteSpace(normalizedKeyword))
+        {
+            var like = $"%{normalizedKeyword}%";
+            query = query.Where(item =>
+                EF.Functions.ILike(item.InvoiceNo, like) ||
+                EF.Functions.ILike(item.CompanyName, like) ||
+                EF.Functions.ILike(item.ApplicantName, like) ||
+                EF.Functions.ILike(item.OrderNo, like));
+        }
+
+        return query;
+    }
+
+    private static DateTime NormalizeUtc(DateTime value)
+    {
+        return value.Kind switch
+        {
+            DateTimeKind.Utc => value,
+            DateTimeKind.Local => value.ToUniversalTime(),
+            _ => DateTime.SpecifyKind(value, DateTimeKind.Utc)
+        };
+    }
+}

src/Infrastructure/TakeoutSaaS.Infrastructure/Migrations/20260305103000_AddFinanceInvoiceModule.cs

@@ -0,0 +1,131 @@
+using System;
+using Microsoft.EntityFrameworkCore.Infrastructure;
+using Microsoft.EntityFrameworkCore.Migrations;
+using Npgsql.EntityFrameworkCore.PostgreSQL.Metadata;
+using TakeoutSaaS.Infrastructure.App.Persistence;
+
+#nullable disable
+
+namespace TakeoutSaaS.Infrastructure.Migrations;
+
+/// <summary>
+/// 新增财务中心发票管理表结构。
+/// </summary>
+[DbContext(typeof(TakeoutAppDbContext))]
+[Migration("20260305103000_AddFinanceInvoiceModule")]
+public sealed class AddFinanceInvoiceModule : Migration
+{
+    /// <inheritdoc />
+    protected override void Up(MigrationBuilder migrationBuilder)
+    {
+        migrationBuilder.CreateTable(
+            name: "finance_invoice_records",
+            columns: table => new
+            {
+                Id = table.Column<long>(type: "bigint", nullable: false, comment: "实体唯一标识。")
+                    .Annotation("Npgsql:ValueGenerationStrategy", NpgsqlValueGenerationStrategy.IdentityByDefaultColumn),
+                InvoiceNo = table.Column<string>(type: "character varying(32)", maxLength: 32, nullable: false, comment: "发票号码。"),
+                ApplicantName = table.Column<string>(type: "character varying(64)", maxLength: 64, nullable: false, comment: "申请人。"),
+                CompanyName = table.Column<string>(type: "character varying(128)", maxLength: 128, nullable: false, comment: "开票抬头（公司名）。"),
+                TaxpayerNumber = table.Column<string>(type: "character varying(64)", maxLength: 64, nullable: true, comment: "纳税人识别号快照。"),
+                InvoiceType = table.Column<int>(type: "integer", nullable: false, comment: "发票类型。"),
+                Amount = table.Column<decimal>(type: "numeric(18,2)", precision: 18, scale: 2, nullable: false, comment: "开票金额。"),
+                OrderNo = table.Column<string>(type: "character varying(32)", maxLength: 32, nullable: false, comment: "关联订单号。"),
+                ContactEmail = table.Column<string>(type: "character varying(128)", maxLength: 128, nullable: true, comment: "接收邮箱。"),
+                ContactPhone = table.Column<string>(type: "character varying(32)", maxLength: 32, nullable: true, comment: "联系电话。"),
+                ApplyRemark = table.Column<string>(type: "character varying(256)", maxLength: 256, nullable: true, comment: "申请备注。"),
+                Status = table.Column<int>(type: "integer", nullable: false, comment: "发票状态。"),
+                AppliedAt = table.Column<DateTime>(type: "timestamp with time zone", nullable: false, comment: "申请时间（UTC）。"),
+                IssuedAt = table.Column<DateTime>(type: "timestamp with time zone", nullable: true, comment: "开票时间（UTC）。"),
+                IssuedByUserId = table.Column<long>(type: "bigint", nullable: true, comment: "开票人 ID。"),
+                IssueRemark = table.Column<string>(type: "character varying(256)", maxLength: 256, nullable: true, comment: "开票备注。"),
+                VoidedAt = table.Column<DateTime>(type: "timestamp with time zone", nullable: true, comment: "作废时间（UTC）。"),
+                VoidedByUserId = table.Column<long>(type: "bigint", nullable: true, comment: "作废人 ID。"),
+                VoidReason = table.Column<string>(type: "character varying(256)", maxLength: 256, nullable: true, comment: "作废原因。"),
+                CreatedAt = table.Column<DateTime>(type: "timestamp with time zone", nullable: false, comment: "创建时间（UTC）。"),
+                UpdatedAt = table.Column<DateTime>(type: "timestamp with time zone", nullable: true, comment: "最近一次更新时间（UTC），从未更新时为 null。"),
+                DeletedAt = table.Column<DateTime>(type: "timestamp with time zone", nullable: true, comment: "软删除时间（UTC），未删除时为 null。"),
+                CreatedBy = table.Column<long>(type: "bigint", nullable: true, comment: "创建人用户标识，匿名或系统操作时为 null。"),
+                UpdatedBy = table.Column<long>(type: "bigint", nullable: true, comment: "最后更新人用户标识，匿名或系统操作时为 null。"),
+                DeletedBy = table.Column<long>(type: "bigint", nullable: true, comment: "删除人用户标识（软删除），未删除时为 null。"),
+                TenantId = table.Column<long>(type: "bigint", nullable: false, comment: "所属租户 ID。")
+            },
+            constraints: table =>
+            {
+                table.PrimaryKey("PK_finance_invoice_records", x => x.Id);
+            },
+            comment: "租户发票记录。");
+
+        migrationBuilder.CreateTable(
+            name: "finance_invoice_settings",
+            columns: table => new
+            {
+                Id = table.Column<long>(type: "bigint", nullable: false, comment: "实体唯一标识。")
+                    .Annotation("Npgsql:ValueGenerationStrategy", NpgsqlValueGenerationStrategy.IdentityByDefaultColumn),
+                CompanyName = table.Column<string>(type: "character varying(128)", maxLength: 128, nullable: false, comment: "企业名称。"),
+                TaxpayerNumber = table.Column<string>(type: "character varying(64)", maxLength: 64, nullable: false, comment: "纳税人识别号。"),
+                RegisteredAddress = table.Column<string>(type: "character varying(256)", maxLength: 256, nullable: true, comment: "注册地址。"),
+                RegisteredPhone = table.Column<string>(type: "character varying(32)", maxLength: 32, nullable: true, comment: "注册电话。"),
+                BankName = table.Column<string>(type: "character varying(128)", maxLength: 128, nullable: true, comment: "开户银行。"),
+                BankAccount = table.Column<string>(type: "character varying(64)", maxLength: 64, nullable: true, comment: "银行账号。"),
+                EnableElectronicNormalInvoice = table.Column<bool>(type: "boolean", nullable: false, comment: "是否启用电子普通发票。"),
+                EnableElectronicSpecialInvoice = table.Column<bool>(type: "boolean", nullable: false, comment: "是否启用电子专用发票。"),
+                EnableAutoIssue = table.Column<bool>(type: "boolean", nullable: false, comment: "是否启用自动开票。"),
+                AutoIssueMaxAmount = table.Column<decimal>(type: "numeric(18,2)", precision: 18, scale: 2, nullable: false, comment: "自动开票单张最大金额。"),
+                CreatedAt = table.Column<DateTime>(type: "timestamp with time zone", nullable: false, comment: "创建时间（UTC）。"),
+                UpdatedAt = table.Column<DateTime>(type: "timestamp with time zone", nullable: true, comment: "最近一次更新时间（UTC），从未更新时为 null。"),
+                DeletedAt = table.Column<DateTime>(type: "timestamp with time zone", nullable: true, comment: "软删除时间（UTC），未删除时为 null。"),
+                CreatedBy = table.Column<long>(type: "bigint", nullable: true, comment: "创建人用户标识，匿名或系统操作时为 null。"),
+                UpdatedBy = table.Column<long>(type: "bigint", nullable: true, comment: "最后更新人用户标识，匿名或系统操作时为 null。"),
+                DeletedBy = table.Column<long>(type: "bigint", nullable: true, comment: "删除人用户标识（软删除），未删除时为 null。"),
+                TenantId = table.Column<long>(type: "bigint", nullable: false, comment: "所属租户 ID。")
+            },
+            constraints: table =>
+            {
+                table.PrimaryKey("PK_finance_invoice_settings", x => x.Id);
+            },
+            comment: "租户发票开票基础设置。");
+
+        migrationBuilder.CreateIndex(
+            name: "IX_finance_invoice_records_TenantId_InvoiceNo",
+            table: "finance_invoice_records",
+            columns: new[] { "TenantId", "InvoiceNo" },
+            unique: true);
+
+        migrationBuilder.CreateIndex(
+            name: "IX_finance_invoice_records_TenantId_InvoiceType_AppliedAt",
+            table: "finance_invoice_records",
+            columns: new[] { "TenantId", "InvoiceType", "AppliedAt" });
+
+        migrationBuilder.CreateIndex(
+            name: "IX_finance_invoice_records_TenantId_OrderNo",
+            table: "finance_invoice_records",
+            columns: new[] { "TenantId", "OrderNo" });
+
+        migrationBuilder.CreateIndex(
+            name: "IX_finance_invoice_records_TenantId_Status_AppliedAt",
+            table: "finance_invoice_records",
+            columns: new[] { "TenantId", "Status", "AppliedAt" });
+
+        migrationBuilder.CreateIndex(
+            name: "IX_finance_invoice_records_TenantId_Status_IssuedAt",
+            table: "finance_invoice_records",
+            columns: new[] { "TenantId", "Status", "IssuedAt" });
+
+        migrationBuilder.CreateIndex(
+            name: "IX_finance_invoice_settings_TenantId",
+            table: "finance_invoice_settings",
+            column: "TenantId",
+            unique: true);
+    }
+
+    /// <inheritdoc />
+    protected override void Down(MigrationBuilder migrationBuilder)
+    {
+        migrationBuilder.DropTable(
+            name: "finance_invoice_records");
+
+        migrationBuilder.DropTable(
+            name: "finance_invoice_settings");
+    }
+}