实验成绩计算

2026-08-09 22:40:21 +08:00
parent d4abdd3db4
commit c25f16ec20
12 changed files with 7653 additions and 290 deletions
@@ -1,4 +1,5 @@
 using System.ComponentModel.DataAnnotations;
+using System.Data;
 using Jiaowu.Api.Domain.Academic;
 using Jiaowu.Api.Domain.Identity;
 using Jiaowu.Api.Infrastructure.Auth;
@@ -138,7 +139,7 @@ public sealed class ExperimentGradesController(
        if (student is null)
            return ConflictProblem("当前账号未关联有效学生档案。");

-        return Ok(await db.ExperimentGradeRecords.AsNoTracking()
+        var results = await db.ExperimentGradeRecords.AsNoTracking()
            .Where(x =>
                x.StudentId == student.Id &&
                x.ExperimentGradeSheet!.Status ==
@@ -157,12 +158,19 @@ public sealed class ExperimentGradesController(
                ProjectName =
                    x.ExperimentGradeSheet.ExperimentProject.Name,
                x.ExperimentGradeSheet.ExperimentProject.ArrangementMode,
+                TeachingTaskId = x.ExperimentGradeSheet.ExperimentProject
+                    .TeachingTaskId,
+                AcademicTermId = x.ExperimentGradeSheet.ExperimentProject
+                    .TeachingTask!.AcademicTermId,
+                TaskNumber = x.ExperimentGradeSheet.ExperimentProject
+                    .TeachingTask.TaskNumber,
                CourseCode = x.ExperimentGradeSheet.ExperimentProject
                    .TeachingTask!.Course!.Code,
                CourseName = x.ExperimentGradeSheet.ExperimentProject
                    .TeachingTask.Course.Name,
                TermName = x.ExperimentGradeSheet.ExperimentProject
                    .TeachingTask.AcademicTerm!.Name,
+                x.ExperimentGradeSheet.ContributionWeight,
                x.ExperimentGradeSheet.PassScore,
                x.ParticipationStatus,
                x.TotalScore,
@@ -187,7 +195,40 @@ public sealed class ExperimentGradesController(
                    }),
                x.ExperimentGradeSheet.PublishedAt
            })
-            .ToListAsync(cancellationToken));
+            .ToListAsync(cancellationToken);
+        var taskIds = results.Select(x => x.TeachingTaskId).Distinct().ToArray();
+        var aggregates = await db.ExperimentCourseGrades.AsNoTracking()
+            .Where(x =>
+                x.StudentId == student.Id &&
+                taskIds.Contains(x.TeachingTaskId))
+            .ToDictionaryAsync(x => x.TeachingTaskId, cancellationToken);
+        var courses = results
+            .GroupBy(x => x.TeachingTaskId)
+            .Select(group =>
+            {
+                var first = group.First();
+                aggregates.TryGetValue(group.Key, out var aggregate);
+                return new
+                {
+                    TeachingTaskId = group.Key,
+                    first.AcademicTermId,
+                    first.TermName,
+                    first.TaskNumber,
+                    first.CourseCode,
+                    first.CourseName,
+                    ExperimentCourseScore = aggregate?.WeightedAverageScore,
+                    PublishedProjectCount =
+                        aggregate?.PublishedProjectCount ?? group.Count(),
+                    TotalWeight = aggregate?.TotalWeight ??
+                        group.Sum(x => x.ContributionWeight),
+                    RefreshedAt = aggregate?.RefreshedAt,
+                    Projects = group.OrderBy(x => x.ProjectCode).ToList()
+                };
+            })
+            .OrderByDescending(x => x.Projects.Max(project => project.PublishedAt))
+            .ThenBy(x => x.CourseCode)
+            .ToList();
+        return Ok(courses);
    }

    [HttpPost("sheets")]
@@ -744,7 +785,15 @@ public sealed class ExperimentGradesController(

        sheet.Status = ExperimentGradeSheetStatus.Published;
        sheet.PublishedAt = DateTime.UtcNow;
+        await db.ExecuteInRetriableTransactionAsync(async transaction =>
+        {
            await db.SaveChangesAsync(cancellationToken);
+            await ExperimentGradeAggregationService.RefreshTeachingTaskAsync(
+                db,
+                sheet.ExperimentProject!.TeachingTaskId,
+                cancellationToken);
+            await transaction.CommitAsync(cancellationToken);
+        }, cancellationToken, IsolationLevel.Serializable);
        var userIds = await db.ExperimentGradeRecords
            .Where(x => x.ExperimentGradeSheetId == sheet.Id)
            .Select(x => x.Student!.UserId)
@@ -51,6 +51,22 @@ public sealed class ExperimentGradeRecord : EntityBase
    public ICollection<ExperimentGradeItemScore> ItemScores { get; set; } = [];
 }

+/// <summary>
+/// A student's persisted experiment-part score for one teaching task.
+/// The score is the weighted average of every published experiment project.
+/// </summary>
+public sealed class ExperimentCourseGrade : EntityBase
+{
+    public Guid TeachingTaskId { get; set; }
+    public TeachingTask? TeachingTask { get; set; }
+    public Guid StudentId { get; set; }
+    public Student? Student { get; set; }
+    public decimal? WeightedAverageScore { get; set; }
+    public decimal TotalWeight { get; set; }
+    public int PublishedProjectCount { get; set; }
+    public DateTime RefreshedAt { get; set; }
+}
+
 public sealed class ExperimentGradeItemScore
 {
    public Guid ExperimentGradeRecordId { get; set; }
@@ -5,13 +5,85 @@ namespace Jiaowu.Api.Infrastructure.Grades;

 public static class ExperimentGradeAggregationService
 {
+    public static async Task RefreshTeachingTaskAsync(
+        AppDbContext db,
+        Guid teachingTaskId,
+        CancellationToken cancellationToken)
+    {
+        var sheets = await LoadPublishedSheetsAsync(
+            db,
+            teachingTaskId,
+            cancellationToken);
+        var existing = await db.ExperimentCourseGrades
+            .Where(x => x.TeachingTaskId == teachingTaskId)
+            .ToDictionaryAsync(x => x.StudentId, cancellationToken);
+        var studentIds = sheets
+            .SelectMany(x => x.Scores.Select(score => score.StudentId))
+            .Distinct()
+            .ToArray();
+        var refreshedAt = DateTime.UtcNow;
+        var totalWeight = sheets.Sum(x => x.ContributionWeight);
+
+        foreach (var studentId in studentIds)
+        {
+            var score = CalculateStudentScore(sheets, studentId);
+            if (!existing.Remove(studentId, out var aggregate))
+            {
+                aggregate = new Domain.Academic.ExperimentCourseGrade
+                {
+                    TeachingTaskId = teachingTaskId,
+                    StudentId = studentId
+                };
+                db.ExperimentCourseGrades.Add(aggregate);
+            }
+            aggregate.WeightedAverageScore = score;
+            aggregate.TotalWeight = totalWeight;
+            aggregate.PublishedProjectCount = sheets.Count;
+            aggregate.RefreshedAt = refreshedAt;
+        }
+
+        db.ExperimentCourseGrades.RemoveRange(existing.Values);
+        await db.SaveChangesAsync(cancellationToken);
+    }
+
    public static async Task<ExperimentGradeAggregateResult> CalculateAsync(
        AppDbContext db,
        Guid teachingTaskId,
        IReadOnlyCollection<Guid> studentIds,
        CancellationToken cancellationToken)
    {
-        var sheets = await db.ExperimentGradeSheets.AsNoTracking()
+        var sheets = await LoadPublishedSheetsAsync(
+            db,
+            teachingTaskId,
+            cancellationToken);
+        var requestedStudentIds = studentIds.Distinct().ToArray();
+        var persistedScores = await db.ExperimentCourseGrades.AsNoTracking()
+            .Where(x =>
+                x.TeachingTaskId == teachingTaskId &&
+                requestedStudentIds.Contains(x.StudentId))
+            .ToDictionaryAsync(
+                x => x.StudentId,
+                x => x.WeightedAverageScore,
+                cancellationToken);
+        var scores = requestedStudentIds.ToDictionary(
+            studentId => studentId,
+            studentId => persistedScores.GetValueOrDefault(studentId));
+
+        return new ExperimentGradeAggregateResult(
+            sheets.Count,
+            sheets.Select(x => new ExperimentGradeAggregateProject(
+                x.Id,
+                x.Code,
+                x.Name,
+                x.ContributionWeight)).ToList(),
+            scores);
+    }
+
+    private static Task<List<PublishedExperimentSheet>> LoadPublishedSheetsAsync(
+        AppDbContext db,
+        Guid teachingTaskId,
+        CancellationToken cancellationToken) =>
+        db.ExperimentGradeSheets.AsNoTracking()
            .Where(x =>
                x.Status ==
                    Domain.Academic.ExperimentGradeSheetStatus.Published &&
@@ -28,25 +100,22 @@ public static class ExperimentGradeAggregationService
            .AsSplitQuery()
            .ToListAsync(cancellationToken);

-        var scores = new Dictionary<Guid, decimal?>();
-        foreach (var studentId in studentIds.Distinct())
+    private static decimal? CalculateStudentScore(
+        IReadOnlyCollection<PublishedExperimentSheet> sheets,
+        Guid studentId)
    {
        decimal weightedTotal = 0;
        decimal totalWeight = 0;
-            var complete = sheets.Count > 0;
+        if (sheets.Count == 0) return null;
        foreach (var sheet in sheets)
        {
            var score = sheet.Scores.FirstOrDefault(x =>
                x.StudentId == studentId);
-                if (score?.TotalScore is not decimal totalScore)
-                {
-                    complete = false;
-                    break;
-                }
+            if (score?.TotalScore is not decimal totalScore) return null;
            weightedTotal += totalScore * sheet.ContributionWeight;
            totalWeight += sheet.ContributionWeight;
        }
-            scores[studentId] = complete && totalWeight > 0
+        return totalWeight > 0
            ? Math.Round(
                weightedTotal / totalWeight,
                1,
@@ -54,16 +123,6 @@ public static class ExperimentGradeAggregationService
            : null;
    }

-        return new ExperimentGradeAggregateResult(
-            sheets.Count,
-            sheets.Select(x => new ExperimentGradeAggregateProject(
-                x.Id,
-                x.Code,
-                x.Name,
-                x.ContributionWeight)).ToList(),
-            scores);
-    }
-
    private sealed record PublishedExperimentSheet(
        Guid Id,
        string Code,
@@ -58,6 +58,8 @@ public sealed class AppDbContext(DbContextOptions<AppDbContext> options)
        Set<ExperimentGradeItem>();
    public DbSet<ExperimentGradeRecord> ExperimentGradeRecords =>
        Set<ExperimentGradeRecord>();
+    public DbSet<ExperimentCourseGrade> ExperimentCourseGrades =>
+        Set<ExperimentCourseGrade>();
    public DbSet<ExperimentGradeItemScore> ExperimentGradeItemScores =>
        Set<ExperimentGradeItemScore>();
    public DbSet<CourseSelectionRound> CourseSelectionRounds =>
@@ -795,6 +797,21 @@ public sealed class AppDbContext(DbContextOptions<AppDbContext> options)
                .OnDelete(DeleteBehavior.Restrict);
        });

+        builder.Entity<ExperimentCourseGrade>(entity =>
+        {
+            entity.Property(x => x.WeightedAverageScore).HasPrecision(5, 1);
+            entity.Property(x => x.TotalWeight).HasPrecision(8, 1);
+            entity.HasIndex(x => new { x.TeachingTaskId, x.StudentId })
+                .IsUnique();
+            entity.HasIndex(x => x.StudentId);
+            entity.HasOne(x => x.TeachingTask).WithMany()
+                .HasForeignKey(x => x.TeachingTaskId)
+                .OnDelete(DeleteBehavior.Cascade);
+            entity.HasOne(x => x.Student).WithMany()
+                .HasForeignKey(x => x.StudentId)
+                .OnDelete(DeleteBehavior.Restrict);
+        });
+
        builder.Entity<ExperimentGradeItemScore>(entity =>
        {
            entity.HasKey(x => new
@@ -100,6 +100,8 @@ public sealed class DevelopmentSqliteMigrator(
        "20260809_52_reusable_course_groups";
    private const string CourseGradeStatisticsRefreshSettingsMigration =
        "20260809_53_course_grade_statistics_refresh_settings";
+    private const string ExperimentCourseGradesMigration =
+        "20260809_54_experiment_course_grades";

    public async Task MigrateAsync(CancellationToken cancellationToken = default)
    {
@@ -721,6 +723,14 @@ public sealed class DevelopmentSqliteMigrator(
            ReusableCourseGroupsMigration,
            courseGroupsExist ? [] : ReusableCourseGroupsStatements,
            cancellationToken);
+        var experimentCourseGradesExist = await db.Database
+            .SqlQueryRaw<int>(
+                "SELECT COUNT(*) AS \"Value\" FROM sqlite_master WHERE type = 'table' AND name = 'ExperimentCourseGrades'")
+            .AnyAsync(value => value > 0, cancellationToken);
+        await ApplyMigrationAsync(
+            ExperimentCourseGradesMigration,
+            experimentCourseGradesExist ? [] : ExperimentCourseGradesStatements,
+            cancellationToken);
    }

    private async Task ApplyMigrationAsync(
@@ -2989,6 +2999,80 @@ public sealed class DevelopmentSqliteMigrator(
        """CREATE UNIQUE INDEX IF NOT EXISTS "IX_CourseGradeStatisticsRefreshSettings_Key" ON "CourseGradeStatisticsRefreshSettings" ("Key");"""
    ];

+    private static readonly string[] ExperimentCourseGradesStatements =
+    [
+        """
+        CREATE TABLE "ExperimentCourseGrades" (
+            "Id" TEXT NOT NULL CONSTRAINT "PK_ExperimentCourseGrades" PRIMARY KEY,
+            "TeachingTaskId" TEXT NOT NULL,
+            "StudentId" TEXT NOT NULL,
+            "WeightedAverageScore" TEXT NULL,
+            "TotalWeight" TEXT NOT NULL,
+            "PublishedProjectCount" INTEGER NOT NULL,
+            "RefreshedAt" TEXT NOT NULL,
+            "CreatedAt" TEXT NOT NULL,
+            "UpdatedAt" TEXT NOT NULL,
+            CONSTRAINT "FK_ExperimentCourseGrades_TeachingTasks_TeachingTaskId"
+                FOREIGN KEY ("TeachingTaskId") REFERENCES "TeachingTasks" ("Id") ON DELETE CASCADE,
+            CONSTRAINT "FK_ExperimentCourseGrades_Students_StudentId"
+                FOREIGN KEY ("StudentId") REFERENCES "Students" ("Id") ON DELETE RESTRICT
+        );
+        """,
+        """CREATE INDEX "IX_ExperimentCourseGrades_StudentId" ON "ExperimentCourseGrades" ("StudentId");""",
+        """CREATE UNIQUE INDEX "IX_ExperimentCourseGrades_TeachingTaskId_StudentId" ON "ExperimentCourseGrades" ("TeachingTaskId", "StudentId");""",
+        """
+        INSERT INTO "ExperimentCourseGrades"
+            ("Id", "TeachingTaskId", "StudentId", "WeightedAverageScore",
+             "TotalWeight", "PublishedProjectCount", "RefreshedAt",
+             "CreatedAt", "UpdatedAt")
+        SELECT
+            lower(hex(randomblob(4))) || '-' || lower(hex(randomblob(2))) || '-' ||
+            '4' || substr(lower(hex(randomblob(2))), 2) || '-' ||
+            substr('89ab', abs(random()) % 4 + 1, 1) ||
+            substr(lower(hex(randomblob(2))), 2) || '-' || lower(hex(randomblob(6))),
+            project."TeachingTaskId",
+            record."StudentId",
+            CASE
+                WHEN COUNT(*) = (
+                    SELECT COUNT(*)
+                    FROM "ExperimentGradeSheets" AS all_sheet
+                    INNER JOIN "ExperimentProjects" AS all_project
+                        ON all_project."Id" = all_sheet."ExperimentProjectId"
+                    WHERE all_sheet."Status" = 4
+                      AND all_project."TeachingTaskId" = project."TeachingTaskId")
+                 AND SUM(CASE WHEN record."TotalScore" IS NULL THEN 1 ELSE 0 END) = 0
+                THEN ROUND(
+                    SUM(record."TotalScore" * sheet."ContributionWeight") /
+                    SUM(sheet."ContributionWeight"), 1)
+                ELSE NULL
+            END,
+            (
+                SELECT COALESCE(SUM(all_sheet."ContributionWeight"), 0)
+                FROM "ExperimentGradeSheets" AS all_sheet
+                INNER JOIN "ExperimentProjects" AS all_project
+                    ON all_project."Id" = all_sheet."ExperimentProjectId"
+                WHERE all_sheet."Status" = 4
+                  AND all_project."TeachingTaskId" = project."TeachingTaskId"),
+            (
+                SELECT COUNT(*)
+                FROM "ExperimentGradeSheets" AS all_sheet
+                INNER JOIN "ExperimentProjects" AS all_project
+                    ON all_project."Id" = all_sheet."ExperimentProjectId"
+                WHERE all_sheet."Status" = 4
+                  AND all_project."TeachingTaskId" = project."TeachingTaskId"),
+            strftime('%Y-%m-%d %H:%M:%f', 'now'),
+            strftime('%Y-%m-%d %H:%M:%f', 'now'),
+            strftime('%Y-%m-%d %H:%M:%f', 'now')
+        FROM "ExperimentGradeRecords" AS record
+        INNER JOIN "ExperimentGradeSheets" AS sheet
+            ON sheet."Id" = record."ExperimentGradeSheetId"
+        INNER JOIN "ExperimentProjects" AS project
+            ON project."Id" = sheet."ExperimentProjectId"
+        WHERE sheet."Status" = 4
+        GROUP BY project."TeachingTaskId", record."StudentId";
+        """
+    ];
+
    private static readonly string[] ExperimentClassroomConstraintStatements =
    [
        """
@@ -0,0 +1,113 @@
+using System;
+using Microsoft.EntityFrameworkCore.Migrations;
+
+#nullable disable
+
+namespace Jiaowu.Api.Infrastructure.Persistence.Migrations.MySql
+{
+    /// <inheritdoc />
+    public partial class PersistExperimentCourseGrades : Migration
+    {
+        /// <inheritdoc />
+        protected override void Up(MigrationBuilder migrationBuilder)
+        {
+            migrationBuilder.CreateTable(
+                name: "ExperimentCourseGrades",
+                columns: table => new
+                {
+                    Id = table.Column<Guid>(type: "char(36)", nullable: false),
+                    TeachingTaskId = table.Column<Guid>(type: "char(36)", nullable: false),
+                    StudentId = table.Column<Guid>(type: "char(36)", nullable: false),
+                    WeightedAverageScore = table.Column<decimal>(type: "decimal(5,1)", precision: 5, scale: 1, nullable: true),
+                    TotalWeight = table.Column<decimal>(type: "decimal(8,1)", precision: 8, scale: 1, nullable: false),
+                    PublishedProjectCount = table.Column<int>(type: "int", nullable: false),
+                    RefreshedAt = table.Column<DateTime>(type: "datetime(6)", nullable: false),
+                    CreatedAt = table.Column<DateTime>(type: "datetime(6)", nullable: false),
+                    UpdatedAt = table.Column<DateTime>(type: "datetime(6)", nullable: false)
+                },
+                constraints: table =>
+                {
+                    table.PrimaryKey("PK_ExperimentCourseGrades", x => x.Id);
+                    table.ForeignKey(
+                        name: "FK_ExperimentCourseGrades_Students_StudentId",
+                        column: x => x.StudentId,
+                        principalTable: "Students",
+                        principalColumn: "Id",
+                        onDelete: ReferentialAction.Restrict);
+                    table.ForeignKey(
+                        name: "FK_ExperimentCourseGrades_TeachingTasks_TeachingTaskId",
+                        column: x => x.TeachingTaskId,
+                        principalTable: "TeachingTasks",
+                        principalColumn: "Id",
+                        onDelete: ReferentialAction.Cascade);
+                })
+                .Annotation("MySQL:Charset", "utf8mb4");
+
+            migrationBuilder.CreateIndex(
+                name: "IX_ExperimentCourseGrades_StudentId",
+                table: "ExperimentCourseGrades",
+                column: "StudentId");
+
+            migrationBuilder.CreateIndex(
+                name: "IX_ExperimentCourseGrades_TeachingTaskId_StudentId",
+                table: "ExperimentCourseGrades",
+                columns: new[] { "TeachingTaskId", "StudentId" },
+                unique: true);
+
+            migrationBuilder.Sql(
+                """
+                INSERT INTO `ExperimentCourseGrades`
+                    (`Id`, `TeachingTaskId`, `StudentId`, `WeightedAverageScore`,
+                     `TotalWeight`, `PublishedProjectCount`, `RefreshedAt`,
+                     `CreatedAt`, `UpdatedAt`)
+                SELECT
+                    UUID(),
+                    project.`TeachingTaskId`,
+                    record.`StudentId`,
+                    CASE
+                        WHEN COUNT(*) = (
+                            SELECT COUNT(*)
+                            FROM `ExperimentGradeSheets` AS all_sheet
+                            INNER JOIN `ExperimentProjects` AS all_project
+                                ON all_project.`Id` = all_sheet.`ExperimentProjectId`
+                            WHERE all_sheet.`Status` = 4
+                              AND all_project.`TeachingTaskId` = project.`TeachingTaskId`)
+                         AND SUM(CASE WHEN record.`TotalScore` IS NULL THEN 1 ELSE 0 END) = 0
+                        THEN ROUND(
+                            SUM(record.`TotalScore` * sheet.`ContributionWeight`) /
+                            SUM(sheet.`ContributionWeight`), 1)
+                        ELSE NULL
+                    END,
+                    (
+                        SELECT COALESCE(SUM(all_sheet.`ContributionWeight`), 0)
+                        FROM `ExperimentGradeSheets` AS all_sheet
+                        INNER JOIN `ExperimentProjects` AS all_project
+                            ON all_project.`Id` = all_sheet.`ExperimentProjectId`
+                        WHERE all_sheet.`Status` = 4
+                          AND all_project.`TeachingTaskId` = project.`TeachingTaskId`),
+                    (
+                        SELECT COUNT(*)
+                        FROM `ExperimentGradeSheets` AS all_sheet
+                        INNER JOIN `ExperimentProjects` AS all_project
+                            ON all_project.`Id` = all_sheet.`ExperimentProjectId`
+                        WHERE all_sheet.`Status` = 4
+                          AND all_project.`TeachingTaskId` = project.`TeachingTaskId`),
+                    UTC_TIMESTAMP(6), UTC_TIMESTAMP(6), UTC_TIMESTAMP(6)
+                FROM `ExperimentGradeRecords` AS record
+                INNER JOIN `ExperimentGradeSheets` AS sheet
+                    ON sheet.`Id` = record.`ExperimentGradeSheetId`
+                INNER JOIN `ExperimentProjects` AS project
+                    ON project.`Id` = sheet.`ExperimentProjectId`
+                WHERE sheet.`Status` = 4
+                GROUP BY project.`TeachingTaskId`, record.`StudentId`;
+                """);
+        }
+
+        /// <inheritdoc />
+        protected override void Down(MigrationBuilder migrationBuilder)
+        {
+            migrationBuilder.DropTable(
+                name: "ExperimentCourseGrades");
+        }
+    }
+}
@@ -2263,6 +2263,48 @@ namespace Jiaowu.Api.Infrastructure.Persistence.Migrations.MySql
                    b.ToTable("ExperimentBookings");
                });

+            modelBuilder.Entity("Jiaowu.Api.Domain.Academic.ExperimentCourseGrade", b =>
+                {
+                    b.Property<Guid>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("char(36)");
+
+                    b.Property<DateTime>("CreatedAt")
+                        .HasColumnType("datetime(6)");
+
+                    b.Property<int>("PublishedProjectCount")
+                        .HasColumnType("int");
+
+                    b.Property<DateTime>("RefreshedAt")
+                        .HasColumnType("datetime(6)");
+
+                    b.Property<Guid>("StudentId")
+                        .HasColumnType("char(36)");
+
+                    b.Property<Guid>("TeachingTaskId")
+                        .HasColumnType("char(36)");
+
+                    b.Property<decimal>("TotalWeight")
+                        .HasPrecision(8, 1)
+                        .HasColumnType("decimal(8,1)");
+
+                    b.Property<DateTime>("UpdatedAt")
+                        .HasColumnType("datetime(6)");
+
+                    b.Property<decimal?>("WeightedAverageScore")
+                        .HasPrecision(5, 1)
+                        .HasColumnType("decimal(5,1)");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("StudentId");
+
+                    b.HasIndex("TeachingTaskId", "StudentId")
+                        .IsUnique();
+
+                    b.ToTable("ExperimentCourseGrades");
+                });
+
            modelBuilder.Entity("Jiaowu.Api.Domain.Academic.ExperimentGradeItem", b =>
                {
                    b.Property<Guid>("Id")
@@ -2494,11 +2536,11 @@ namespace Jiaowu.Api.Infrastructure.Persistence.Migrations.MySql

                    b.HasIndex("ScheduleEntryId");

+                    b.HasIndex("Status", "StartDate", "EndDate");
+
                    b.HasIndex("TeachingTaskId", "Code", "ScheduleEntryId", "ScheduleWeek")
                        .IsUnique();

-                    b.HasIndex("Status", "StartDate", "EndDate");
-
                    b.ToTable("ExperimentProjects");
                });

@@ -5803,6 +5845,25 @@ namespace Jiaowu.Api.Infrastructure.Persistence.Migrations.MySql
                    b.Navigation("Student");
                });

+            modelBuilder.Entity("Jiaowu.Api.Domain.Academic.ExperimentCourseGrade", b =>
+                {
+                    b.HasOne("Jiaowu.Api.Domain.Academic.Student", "Student")
+                        .WithMany()
+                        .HasForeignKey("StudentId")
+                        .OnDelete(DeleteBehavior.Restrict)
+                        .IsRequired();
+
+                    b.HasOne("Jiaowu.Api.Domain.Academic.TeachingTask", "TeachingTask")
+                        .WithMany()
+                        .HasForeignKey("TeachingTaskId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("Student");
+
+                    b.Navigation("TeachingTask");
+                });
+
            modelBuilder.Entity("Jiaowu.Api.Domain.Academic.ExperimentGradeItem", b =>
                {
                    b.HasOne("Jiaowu.Api.Domain.Academic.ExperimentGradeSheet", "ExperimentGradeSheet")
@@ -2,6 +2,7 @@ using Jiaowu.Api.Controllers;
 using Jiaowu.Api.Domain.Academic;
 using Jiaowu.Api.Domain.Identity;
 using Jiaowu.Api.Infrastructure.Auth;
+using Jiaowu.Api.Infrastructure.Grades;
 using Jiaowu.Api.Infrastructure.Persistence;
 using Microsoft.AspNetCore.Mvc;
 using Microsoft.Data.Sqlite;
@@ -262,7 +263,17 @@ public sealed class ExperimentGradesControllerTests
        var studentResult = await fixture
            .ExperimentGrades(fixture.StudentScope)
            .GetMine(CancellationToken.None);
-        Assert.IsType<OkObjectResult>(studentResult);
+        var studentResultOk = Assert.IsType<OkObjectResult>(studentResult);
+        var studentCourse = Assert.Single(
+            Assert.IsAssignableFrom<System.Collections.IEnumerable>(
+                studentResultOk.Value).Cast<object>());
+        Assert.Equal(85m, Property<decimal>(
+            studentCourse,
+            "ExperimentCourseScore"));
+        var persistedExperimentCourseGrade = await fixture.Db
+            .ExperimentCourseGrades.SingleAsync();
+        Assert.Equal(85m, persistedExperimentCourseGrade.WeightedAverageScore);
+        Assert.Equal(1, persistedExperimentCourseGrade.PublishedProjectCount);

        var courseSheet = new GradeSheet
        {
@@ -330,6 +341,83 @@ public sealed class ExperimentGradesControllerTests
        Assert.IsType<ConflictObjectResult>(manualOverride);
    }

+    [Fact]
+    public async Task ExperimentCourseGrade_IsPersistedAsWeightedAverage()
+    {
+        await using var fixture = await ExperimentGradeFixture.CreateAsync();
+        var firstProject = new ExperimentProject
+        {
+            TeachingTaskId = fixture.Task.Id,
+            Code = "LAB-W1",
+            Name = "低权重实验",
+            ArrangementMode = ExperimentArrangementMode.Centralized,
+            StartDate = fixture.Term.StartDate,
+            EndDate = fixture.Term.EndDate,
+            Status = ExperimentProjectStatus.Published,
+            GradeSheet = new ExperimentGradeSheet
+            {
+                ContributionWeight = 1,
+                Status = ExperimentGradeSheetStatus.Published,
+                Records =
+                [
+                    new ExperimentGradeRecord
+                    {
+                        StudentId = fixture.Student.Id,
+                        ParticipationStatus = ExperimentParticipationStatus.Completed,
+                        TotalScore = 80,
+                        IsPassed = true
+                    }
+                ]
+            }
+        };
+        var secondProject = new ExperimentProject
+        {
+            TeachingTaskId = fixture.Task.Id,
+            Code = "LAB-W2",
+            Name = "高权重实验",
+            ArrangementMode = ExperimentArrangementMode.Centralized,
+            StartDate = fixture.Term.StartDate,
+            EndDate = fixture.Term.EndDate,
+            Status = ExperimentProjectStatus.Published,
+            GradeSheet = new ExperimentGradeSheet
+            {
+                ContributionWeight = 3,
+                Status = ExperimentGradeSheetStatus.Published,
+                Records =
+                [
+                    new ExperimentGradeRecord
+                    {
+                        StudentId = fixture.Student.Id,
+                        ParticipationStatus = ExperimentParticipationStatus.Completed,
+                        TotalScore = 90,
+                        IsPassed = true
+                    }
+                ]
+            }
+        };
+        fixture.Db.AddRange(firstProject, secondProject);
+        await fixture.Db.SaveChangesAsync();
+
+        await ExperimentGradeAggregationService.RefreshTeachingTaskAsync(
+            fixture.Db,
+            fixture.Task.Id,
+            CancellationToken.None);
+
+        var persisted = await fixture.Db.ExperimentCourseGrades.SingleAsync();
+        Assert.Equal(87.5m, persisted.WeightedAverageScore);
+        Assert.Equal(4m, persisted.TotalWeight);
+        Assert.Equal(2, persisted.PublishedProjectCount);
+
+        firstProject.GradeSheet!.Records.Single().TotalScore = 0;
+        await fixture.Db.SaveChangesAsync();
+        var referenced = await ExperimentGradeAggregationService.CalculateAsync(
+            fixture.Db,
+            fixture.Task.Id,
+            [fixture.Student.Id],
+            CancellationToken.None);
+        Assert.Equal(87.5m, referenced.Scores[fixture.Student.Id]);
+    }
+
    [Fact]
    public async Task SelfScheduledSheet_SyncsOnlyActiveBookings()
    {
@@ -36,6 +36,7 @@ declare module 'vue' {
    ElMenuItem: typeof import('element-plus/es')['ElMenuItem']
    ElOption: typeof import('element-plus/es')['ElOption']
    ElPagination: typeof import('element-plus/es')['ElPagination']
+    ElPopover: typeof import('element-plus/es')['ElPopover']
    ElProgress: typeof import('element-plus/es')['ElProgress']
    ElRadioButton: typeof import('element-plus/es')['ElRadioButton']
    ElRadioGroup: typeof import('element-plus/es')['ElRadioGroup']
@@ -376,7 +376,7 @@ async function publishSheet() {
  }
 }

-function scoreTone(result: any) {
+function projectScoreTone(result: any) {
  if (result.totalScore == null) return 'is-pending'
  return result.isPassed ? 'is-passed' : 'is-failed'
 }
@@ -404,13 +404,13 @@ onMounted(async () => {
      <div>
        <span class="section-kicker">LAB ASSESSMENT LEDGER</span>
        <h2>{{ isStudent ? '我的实验成绩' : '实验成绩管理' }}</h2>
-        <p v-if="isStudent">实验成绩独立记录操作、结果、报告和到场情况，不与课程总评混在一起。</p>
+        <p v-if="isStudent">按课程查看各实验项目；实验课总分为项目贡献权重加权平均，也是课程成绩引用的实验部分分数。</p>
        <p v-else>按实验项目建立独立评分方案，审核发布后可选择汇总到课程成绩单。</p>
      </div>
      <el-button :icon="Refresh" @click="load">刷新</el-button>
    </section>

-    <section class="assessment-flow" aria-label="实验成绩流程">
+    <section v-if="!isStudent" class="assessment-flow" aria-label="实验成绩流程">
      <div><span>PROJECT</span><b>实验项目</b><small>集中安排 / 自主预约</small></div>
      <i>→</i>
      <div><span>RUBRIC</span><b>独立评分</b><small>操作 · 结果 · 报告 · 规范</small></div>
@@ -419,39 +419,76 @@ onMounted(async () => {
    </section>

    <template v-if="isStudent">
-      <section v-loading="loading" class="student-result-grid">
-        <article
-          v-for="result in studentResults"
-          :key="result.id"
-          class="student-result-card"
-          :class="scoreTone(result)"
-        >
-          <header>
+      <section v-loading="loading" class="student-course-results">
+        <article v-for="course in studentResults" :key="course.teachingTaskId" class="student-course-result">
+          <header class="student-course-head">
            <div>
-              <span>{{ result.projectCode }} · {{ modeLabels[result.arrangementMode] }}</span>
-              <h3>{{ result.projectName }}</h3>
-              <p>{{ result.courseCode }} · {{ result.courseName }} · {{ result.termName }}</p>
+              <span>{{ course.termName }} · {{ course.taskNumber }}</span>
+              <h3>{{ course.courseCode }} · {{ course.courseName }}</h3>
+              <p>{{ course.publishedProjectCount }} 个已发布实验项目 · 按项目贡献权重计算</p>
            </div>
-            <div class="score-seal">
-              <strong>{{ result.totalScore ?? '—' }}</strong>
-              <small>{{ result.totalScore == null ? participationLabels[result.participationStatus] : result.isPassed ? '通过' : '未通过' }}</small>
+            <div class="course-score-seal" :class="{ 'has-score': course.experimentCourseScore != null }">
+              <span>实验课总分</span>
+              <strong>{{ course.experimentCourseScore ?? '—' }}</strong>
+              <small>{{ course.experimentCourseScore == null ? '成绩尚未完整' : '加权平均分' }}</small>
            </div>
          </header>
+          <el-table :data="course.projects" class="student-grade-table" size="small">
+            <el-table-column type="expand" width="44">
+              <template #default="{ row }">
+                <div class="student-grade-detail" :class="projectScoreTone(row)">
                  <div class="result-facts">
-            <span>参与状态<b>{{ participationLabels[result.participationStatus] }}</b></span>
-            <span>合格线<b>{{ result.passScore }}</b></span>
-            <span>实验次数<b>{{ result.attemptNumber }}</b></span>
-            <span>提交情况<b>{{ result.isLate ? '迟交' : result.submittedAt ? '已提交' : '未登记' }}</b></span>
+                    <span>参与状态<b>{{ participationLabels[row.participationStatus] }}</b></span>
+                    <span>合格线<b>{{ row.passScore }}</b></span>
+                    <span>实验次数<b>{{ row.attemptNumber }}</b></span>
+                    <span>提交情况<b>{{ row.isLate ? '迟交' : row.submittedAt ? '已提交' : '未登记' }}</b></span>
                  </div>
                  <div class="result-rubric">
-            <div v-for="item in result.items" :key="item.experimentGradeItemId">
+                    <div v-for="item in row.items" :key="item.experimentGradeItemId">
                      <span>{{ item.name }} · {{ item.weight }}%</span>
                      <b>{{ item.score ?? '—' }}</b>
                      <small v-if="item.comment">{{ item.comment }}</small>
                    </div>
                  </div>
-          <p v-if="result.safetyViolation" class="safety-alert">已登记安全违规，本次实验按规则判定为 0 分。</p>
-          <p v-if="result.teacherComment" class="teacher-comment">{{ result.teacherComment }}</p>
+                  <p v-if="row.safetyViolation" class="safety-alert">已登记安全违规，本次实验按规则判定为 0 分。</p>
+                  <p v-if="row.teacherComment" class="teacher-comment">{{ row.teacherComment }}</p>
+                </div>
+              </template>
+            </el-table-column>
+            <el-table-column label="实验项目" min-width="220">
+              <template #default="{ row }">
+                <div class="student-grade-project">
+                  <b>{{ row.projectCode }} · {{ row.projectName }}</b>
+                  <small>{{ modeLabels[row.arrangementMode] }} · 贡献权重 {{ row.contributionWeight }}</small>
+                </div>
+              </template>
+            </el-table-column>
+            <el-table-column label="分项成绩" min-width="300">
+              <template #default="{ row }">
+                <div class="rubric-inline">
+                  <span v-for="item in row.items" :key="item.experimentGradeItemId">
+                    {{ item.name }} <b>{{ item.score ?? '—' }}</b>
+                  </span>
+                </div>
+              </template>
+            </el-table-column>
+            <el-table-column label="参与状态" width="100" align="center">
+              <template #default="{ row }">{{ participationLabels[row.participationStatus] }}</template>
+            </el-table-column>
+            <el-table-column label="项目成绩" width="100" align="center">
+              <template #default="{ row }">
+                <strong class="project-total" :class="projectScoreTone(row)">{{ row.totalScore ?? '—' }}</strong>
+              </template>
+            </el-table-column>
+            <el-table-column label="结果" width="88" align="center">
+              <template #default="{ row }">
+                <el-tag v-if="row.totalScore != null" :type="row.isPassed ? 'success' : 'danger'" size="small">
+                  {{ row.isPassed ? '通过' : '未通过' }}
+                </el-tag>
+                <span v-else class="table-muted">待完整</span>
+              </template>
+            </el-table-column>
+          </el-table>
        </article>
        <el-empty v-if="!loading && !studentResults.length" description="暂无已发布的实验成绩" />
      </section>
@@ -785,18 +822,31 @@ onMounted(async () => {
 .sheet-progress, .sheet-empty { display: grid; gap: 5px; color: #607681; font-size: 12px; }
 .sheet-progress b { color: var(--grade-teal); }
 .sheet-empty b { color: #5d7480; }
-.student-result-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(340px, 1fr)); gap: 15px; min-height: 180px; }
-.student-result-card { overflow: hidden; border: 1px solid #d8e4e6; border-top: 5px solid #80939b; background: #fff; }
-.student-result-card.is-passed { border-top-color: var(--grade-teal); }
-.student-result-card.is-failed { border-top-color: #b5543d; }
-.student-result-card > header { padding: 18px; display: flex; justify-content: space-between; gap: 16px; border-bottom: 1px solid #e4eaed; }
-.student-result-card header span { color: #607d89; font: 700 10px/1.3 Consolas, monospace; }
-.student-result-card h3 { margin: 5px 0; color: var(--grade-ink); font-size: 18px; }
-.student-result-card header p { margin: 0; color: var(--muted); font-size: 12px; }
-.score-seal { width: 72px; flex: 0 0 72px; display: grid; place-content: center; border-left: 1px solid #dce6e8; text-align: center; }
-.score-seal strong { color: var(--grade-teal); font: 750 28px/1 Consolas, monospace; }
-.is-failed .score-seal strong { color: #b5543d; }
-.score-seal small { margin-top: 5px; color: var(--muted); }
+.student-course-results { display: grid; gap: 12px; min-height: 180px; }
+.student-course-result { overflow: hidden; border: 1px solid #cfdee3; background: #fff; }
+.student-course-head { min-height: 76px; padding: 11px 14px 11px 18px; display: flex; align-items: center; justify-content: space-between; gap: 18px; border-left: 5px solid var(--grade-blue); background: #edf4f6; }
+.student-course-head > div:first-child { min-width: 0; }
+.student-course-head span { color: #617b87; font: 700 10px/1.3 Consolas, monospace; letter-spacing: .05em; }
+.student-course-head h3 { margin: 4px 0; color: var(--grade-ink); font-size: 16px; }
+.student-course-head p { margin: 0; color: #647b85; font-size: 11px; }
+.course-score-seal { min-width: 132px; display: grid; grid-template-columns: auto auto; align-items: center; gap: 2px 12px; padding: 7px 11px; border-left: 1px solid #cbdade; text-align: right; }
+.course-score-seal span { grid-column: 1; color: #59717d; font: 600 11px/1.2 inherit; letter-spacing: 0; }
+.course-score-seal strong { grid-column: 2; grid-row: 1 / span 2; color: #768b94; font: 750 28px/1 Consolas, monospace; }
+.course-score-seal.has-score strong { color: var(--grade-teal); }
+.course-score-seal small { grid-column: 1; color: var(--muted); font-size: 10px; }
+.student-grade-table { --el-table-border-color: #dce5e8; --el-table-header-bg-color: #f7fafb; width: 100%; }
+.student-grade-table :deep(th.el-table__cell) { padding: 7px 0; color: #637985; font-size: 11px; }
+.student-grade-table :deep(td.el-table__cell) { padding: 8px 0; }
+.student-grade-project { display: grid; gap: 3px; }
+.student-grade-project b { color: var(--grade-ink); font-size: 12px; }
+.student-grade-project small { color: #6a8089; font-size: 10px; }
+.rubric-inline { display: flex; flex-wrap: wrap; gap: 4px 10px; }
+.rubric-inline span { color: #6a7f88; font-size: 10px; }
+.rubric-inline b { color: #294e5d; font-size: 11px; }
+.project-total { font: 750 15px/1 Consolas, monospace; color: #74858c; }
+.project-total.is-passed { color: var(--grade-teal); }
+.project-total.is-failed { color: #b5543d; }
+.student-grade-detail { padding: 12px 16px 14px; background: #f7faf9; }
 .result-facts { padding: 12px 18px; display: grid; grid-template-columns: repeat(4, 1fr); gap: 8px; background: #f5f8f8; }
 .result-facts span { display: grid; gap: 3px; color: #758991; font-size: 10px; }
 .result-facts b { color: #365762; font-size: 12px; }
@@ -1,6 +1,6 @@
 <script setup lang="ts">
 import { computed, onMounted, reactive, ref } from 'vue'
-import { Calendar, Check, Plus, Refresh, Tickets, User } from '@element-plus/icons-vue'
+import { Calendar, Check, Plus, Refresh, User } from '@element-plus/icons-vue'
 import { ElMessage, ElMessageBox } from 'element-plus'
 import http, { apiErrorMessage } from '../api/http'
 import { useAuthStore } from '../stores/auth'
@@ -665,7 +665,7 @@ onMounted(async () => {
      </div>
    </section>

-    <section class="lab-rail" aria-label="实验安排方式说明">
+    <section v-if="!isStudent" class="lab-rail" aria-label="实验安排方式说明">
      <article class="rail-lane centralized">
        <span class="rail-code">FIXED / 集中</span>
        <b>统一课次</b>
@@ -707,7 +707,7 @@ onMounted(async () => {
          <el-option label="已关闭" value="Closed" />
        </el-select>
      </template>
-      <span class="result-note">共 {{ total }} 个教学班课程</span>
+      <span class="result-note">{{ isStudent ? `共 ${projectGroups.length} 门课程、${total} 个实验项目` : `共 ${total} 个教学班课程` }}</span>
    </section>

    <section v-if="!isStudent" class="experiment-batch-bar">
@@ -760,6 +760,16 @@ onMounted(async () => {
                <div v-else-if="row.sessions.length" class="table-schedule">
                  <b>{{ row.sessions.length }} 个开放场次</b>
                  <small>{{ row.sessions.map((session: any) => formatSessionTime(session)).join('；') }}</small>
+                  <el-popover placement="bottom" :width="520" trigger="click">
+                    <template #reference><el-button size="small" text :icon="User">查看场次与名单</el-button></template>
+                    <div class="student-session-menu">
+                      <div v-for="session in row.sessions" :key="session.id" class="student-session-option">
+                        <div><b>{{ formatSessionTime(session) }}</b><span>{{ session.campusName }} · {{ session.buildingName }} {{ session.classroomName }}</span></div>
+                        <el-button size="small" text @click="showParticipants(row, session)">预约名单</el-button>
+                        <el-button v-if="session.status !== 'Cancelled'" size="small" text type="danger" @click="cancelSession(row, session)">{{ row.status === 'Draft' ? '删除' : '取消' }}</el-button>
+                      </div>
+                    </div>
+                  </el-popover>
                </div>
                <span v-else class="table-muted">尚未安排</span>
              </template>
@@ -793,211 +803,77 @@ onMounted(async () => {
              </template>
            </el-table-column>
          </el-table>
-      <article
-        v-else
-        v-for="project in group.projects"
-        :key="project.id"
-        class="project-card"
-        :class="[
-          project.arrangementMode === 'Centralized' ? 'is-centralized' : 'is-flexible',
-          `is-${project.status.toLowerCase()}`,
-        ]"
-      >
-        <header class="project-head">
-          <div class="project-identity">
-            <span class="project-code">{{ project.courseCode }} · {{ project.code }}</span>
-            <h3>{{ project.name }}</h3>
-            <p>{{ project.arrangementMode === 'Centralized' ? '统一到场实验' : '开放预约实验' }}</p>
+          <el-table v-else :data="group.projects" class="project-table student-project-table" size="small">
+            <el-table-column type="expand" width="44">
+              <template #default="{ row }">
+                <div class="student-project-detail">
+                  <p v-if="row.description"><b>项目说明</b>{{ row.description }}</p>
+                  <p v-if="row.requirements"><b>实验要求</b>{{ row.requirements }}</p>
+                  <p><b>开放日期</b>{{ row.startDate }} — {{ row.endDate }}</p>
+                  <p><b>任课教师</b>{{ row.teacherNames.join('、') || '待定' }}</p>
                </div>
-          <div class="project-tags">
-            <el-checkbox
-              v-if="!isStudent && project.status === 'Draft'"
-              :model-value="selectedProjectIds.includes(project.id)"
-              @change="toggleProjectSelection(project.id, $event)"
-              aria-label="选择实验项目"
-            />
-            <el-tag
-              :type="project.arrangementMode === 'Centralized' ? 'primary' : 'success'"
-              effect="plain"
-            >
-              {{ modeMeta[project.arrangementMode].label }}
-            </el-tag>
-            <el-tag
-              :type="project.status === 'Published' ? 'success' : project.status === 'Closed' ? 'info' : 'warning'"
-            >
-              {{ statusLabels[project.status] }}
-            </el-tag>
+              </template>
+            </el-table-column>
+            <el-table-column label="实验项目" min-width="210">
+              <template #default="{ row }">
+                <div class="table-project-name">
+                  <b>{{ row.code }} · {{ row.name }}</b>
+                  <small>{{ row.description || modeMeta[row.arrangementMode].note }}</small>
                </div>
-        </header>
-
-        <div class="project-context">
-          <span><b>开放日期</b>{{ project.startDate }} — {{ project.endDate }}</span>
-          <span><b>任课教师</b>{{ project.teacherNames.join('、') || '待定' }}</span>
-          <span v-if="!isStudent"><b>面向班级</b>{{ project.classNames.join('、') || '选课学生' }}</span>
+              </template>
+            </el-table-column>
+            <el-table-column label="实验安排" min-width="300">
+              <template #default="{ row }">
+                <div v-if="row.arrangementMode === 'Centralized' && row.scheduleEntry" class="table-schedule">
+                  <b>第 {{ row.scheduleEntry.projectWeek ?? `${row.scheduleEntry.startWeek}–${row.scheduleEntry.endWeek}` }} 周 · 星期 {{ row.scheduleEntry.dayOfWeek }} · 第 {{ row.scheduleEntry.startPeriod }}–{{ row.scheduleEntry.startPeriod + row.scheduleEntry.periodCount - 1 }} 节</b>
+                  <small>{{ row.scheduleEntry.campusName }} · {{ row.scheduleEntry.buildingName }} {{ row.scheduleEntry.classroomName }}</small>
                </div>
-
-        <p v-if="project.description" class="project-description">{{ project.description }}</p>
-        <div v-if="project.requirements" class="requirement-strip">
-          <b>实验要求</b>
-          <span>{{ project.requirements }}</span>
+                <div v-else-if="row.myBooking && selectedSession(row)" class="table-schedule is-booked">
+                  <b>{{ formatSessionTime(selectedSession(row)) }}</b>
+                  <small>{{ selectedSession(row).campusName }} · {{ selectedSession(row).buildingName }} {{ selectedSession(row).classroomName }}</small>
                </div>
-
-        <div class="session-board">
-          <div class="session-board-head">
-            <div>
-              <span>{{ project.arrangementMode === 'Centralized' ? '统一实验课次' : '可选实验场次' }}</span>
-              <b>{{ modeMeta[project.arrangementMode].note }}</b>
+                <div v-else-if="row.sessions.length" class="table-schedule">
+                  <b>{{ row.sessions.length }} 个可选场次</b>
+                  <small>尚未预约，请在右侧选择实验时间</small>
                </div>
-            <el-button
-              v-if="!isStudent && project.status !== 'Closed' && project.arrangementMode === 'SelfScheduled'"
-              size="small"
-              :icon="Calendar"
-              @click="openSession(project)"
-            >
-              安排场次
+                <span v-else class="table-muted">暂无有效实验安排</span>
+              </template>
+            </el-table-column>
+            <el-table-column label="方式" width="100" align="center">
+              <template #default="{ row }"><el-tag :type="row.arrangementMode === 'Centralized' ? 'primary' : 'success'" effect="plain" size="small">{{ modeMeta[row.arrangementMode].label }}</el-tag></template>
+            </el-table-column>
+            <el-table-column label="状态" width="88" align="center">
+              <template #default="{ row }"><el-tag :type="row.status === 'Published' ? 'success' : 'info'" size="small">{{ statusLabels[row.status] }}</el-tag></template>
+            </el-table-column>
+            <el-table-column label="预约操作" width="190" fixed="right" align="right">
+              <template #default="{ row }">
+                <template v-if="row.arrangementMode === 'SelfScheduled'">
+                  <el-popover placement="bottom-end" :width="540" trigger="click">
+                    <template #reference>
+                      <el-button size="small" :type="row.myBooking ? 'success' : 'primary'" plain>
+                        {{ row.myBooking ? '查看场次' : '选择场次' }}
                      </el-button>
-          </div>
-
-          <div v-if="project.arrangementMode === 'Centralized' && project.scheduleEntry" class="session-grid">
-            <article class="session-ticket">
-              <div class="ticket-date"><strong>课表</strong><span>固定</span></div>
-              <div class="ticket-body">
-                <b>第 {{ project.scheduleEntry.projectWeek ?? `${project.scheduleEntry.startWeek}–${project.scheduleEntry.endWeek}` }} 周 · 星期 {{ project.scheduleEntry.dayOfWeek }} · 第 {{ project.scheduleEntry.startPeriod }}–{{ project.scheduleEntry.startPeriod + project.scheduleEntry.periodCount - 1 }} 节</b>
-                <span>{{ project.scheduleEntry.campusName }} · {{ project.scheduleEntry.buildingName }} {{ project.scheduleEntry.classroomName }}</span>
-              </div>
-              <div class="ticket-action"><el-tag type="primary" size="small" effect="plain">课表已安排</el-tag></div>
-            </article>
-          </div>
-          <div v-else-if="project.sessions.length" class="session-grid">
-            <article
-              v-for="session in project.sessions"
-              :key="session.id"
-              class="session-ticket"
-              :class="{
-                'is-selected': project.myBooking?.experimentSessionId === session.id,
-                'is-cancelled': session.status === 'Cancelled',
-              }"
-            >
-              <div class="ticket-date">
-                <strong>{{ session.sessionDate.slice(8, 10) }}</strong>
-                <span>{{ session.sessionDate.slice(5, 7) }} 月</span>
-              </div>
-              <div class="ticket-body">
-                <b>第 {{ session.startPeriod }}–{{ session.startPeriod + session.periodCount - 1 }} 节</b>
+                    </template>
+                    <div class="student-session-menu">
+                      <header><b>{{ row.code }} · {{ row.name }}</b><span>每个实验项目限约一个场次</span></header>
+                      <div v-for="session in row.sessions" :key="session.id" class="student-session-option" :class="{ 'is-selected': row.myBooking?.experimentSessionId === session.id }">
+                        <div>
+                          <b>{{ formatSessionTime(session) }}</b>
                          <span>{{ session.campusName }} · {{ session.buildingName }} {{ session.classroomName }}</span>
-                <small v-if="session.notes">{{ session.notes }}</small>
                        </div>
-              <div class="ticket-action">
-                <template v-if="project.arrangementMode === 'SelfScheduled'">
-                  <el-tag
-                    v-if="session.status !== 'Cancelled'"
-                    :type="sessionTagType(session)"
-                    size="small"
-                    effect="plain"
-                  >
-                    余 {{ session.capacity - session.reservedCount }} / {{ session.capacity }}
-                  </el-tag>
-                  <el-tag v-else type="info" size="small">已取消</el-tag>
+                        <el-tag :type="sessionTagType(session)" size="small" effect="plain">余 {{ session.remainingCount }} / {{ session.capacity }}</el-tag>
+                        <el-button v-if="row.myBooking?.experimentSessionId === session.id" size="small" type="success" :icon="Check" disabled>已预约</el-button>
+                        <el-button v-else size="small" type="primary" plain :disabled="row.status !== 'Published' || !!row.myBooking || session.remainingCount <= 0" @click="book(row, session)">预约</el-button>
+                      </div>
+                      <el-empty v-if="!row.sessions.length" :image-size="42" description="暂无有效实验场次" />
+                    </div>
+                  </el-popover>
+                  <el-button v-if="row.myBooking && row.status === 'Published'" size="small" text type="danger" @click="cancelBooking(row)">取消</el-button>
                </template>
-                <el-tag v-else type="primary" size="small" effect="plain">
-                  统一到场
-                </el-tag>
-
-                <template v-if="isStudent && project.arrangementMode === 'SelfScheduled'">
-                  <el-button
-                    v-if="project.myBooking?.experimentSessionId === session.id"
-                    size="small"
-                    type="success"
-                    :icon="Check"
-                    disabled
-                  >
-                    已预约
-                  </el-button>
-                  <el-button
-                    v-else
-                    size="small"
-                    type="primary"
-                    plain
-                    :disabled="project.status !== 'Published' || !!project.myBooking || session.remainingCount <= 0"
-                    @click="book(project, session)"
-                  >
-                    预约此场
-                  </el-button>
+                <span v-else class="table-muted">无需预约</span>
              </template>
-                <template v-if="!isStudent">
-                  <el-button
-                    size="small"
-                    text
-                    :icon="User"
-                    @click="showParticipants(project, session)"
-                  >
-                    {{ project.arrangementMode === 'Centralized' ? '应到名单' : '预约名单' }}
-                  </el-button>
-                  <el-button
-                    v-if="session.status !== 'Cancelled'"
-                    size="small"
-                    text
-                    type="danger"
-                    @click="cancelSession(project, session)"
-                  >
-                    {{ project.status === 'Draft' ? '删除' : '取消' }}
-                  </el-button>
-                </template>
-              </div>
-            </article>
-          </div>
-          <el-empty
-            v-else
-            :image-size="58"
-            :description="project.arrangementMode === 'Centralized' ? '尚未绑定已发布课表中的实验课' : (project.status === 'Draft' ? '尚未开放场次，安排后才能发布' : '暂无有效实验场次')"
-          />
-        </div>
-
-        <footer v-if="!isStudent" class="project-actions">
-          <template v-if="project.status === 'Draft'">
-            <el-button size="small" @click="openEditProject(project)">编辑项目</el-button>
-            <el-button size="small" type="danger" plain @click="deleteProject(project)">删除</el-button>
-            <el-button
-              size="small"
-              type="primary"
-              :disabled="project.arrangementMode === 'Centralized'
-                ? !project.scheduleEntry
-                : !project.sessions.some((item: any) => item.status !== 'Cancelled')"
-              @click="publishProject(project)"
-            >
-              发布给学生
-            </el-button>
-          </template>
-          <el-button
-            v-else-if="project.status === 'Published'"
-            size="small"
-            @click="closeProject(project)"
-          >
-            关闭项目
-          </el-button>
-        </footer>
-        <footer
-          v-else-if="project.arrangementMode === 'SelfScheduled' && project.myBooking"
-          class="student-booking-summary"
-        >
-          <div>
-            <Tickets />
-            <span>
-              <b>当前预约</b>
-              {{ formatSessionTime(selectedSession(project)) }}
-            </span>
-          </div>
-          <el-button
-            v-if="project.status === 'Published'"
-            size="small"
-            type="danger"
-            plain
-            @click="cancelBooking(project)"
-          >
-            取消并重选
-          </el-button>
-        </footer>
-      </article>
+            </el-table-column>
+          </el-table>
        </div>
      </section>

@@ -1390,11 +1266,25 @@ onMounted(async () => {
 .project-table { --el-table-border-color: #dce5ea; --el-table-header-bg-color: #f7fafb; --el-table-row-hover-bg-color: #f6fafb; width: 100%; }
 .project-table :deep(th.el-table__cell) { padding: 8px 0; color: #617986; font-size: 11px; font-weight: 650; }
 .project-table :deep(td.el-table__cell) { padding: 9px 0; vertical-align: top; }
+.student-project-table :deep(td.el-table__cell) { vertical-align: middle; }
 .table-project-name, .table-schedule { display: grid; gap: 4px; min-width: 0; }
 .table-project-name b { color: var(--lab-ink); font-size: 13px; }
 .table-project-name small, .table-schedule small { overflow: hidden; color: #667f8d; font-size: 11px; line-height: 1.45; text-overflow: ellipsis; white-space: nowrap; }
 .table-schedule b { color: #365364; font-size: 12px; font-weight: 600; }
+.table-schedule.is-booked b { color: var(--lab-teal); }
 .table-muted { color: #8b9aa4; font-size: 12px; }
+.student-project-detail { display: grid; grid-template-columns: repeat(2, minmax(220px, 1fr)); gap: 7px 20px; padding: 11px 18px 13px; background: #f7fafb; }
+.student-project-detail p { margin: 0; display: grid; grid-template-columns: 70px 1fr; gap: 8px; color: #5f7682; font-size: 11px; line-height: 1.55; }
+.student-project-detail b { color: #304d5d; }
+.student-session-menu { display: grid; gap: 7px; }
+.student-session-menu > header { display: flex; justify-content: space-between; gap: 12px; padding-bottom: 8px; border-bottom: 1px solid #dfe7ea; }
+.student-session-menu > header b { color: var(--lab-ink); font-size: 12px; }
+.student-session-menu > header span { color: #71858e; font-size: 10px; }
+.student-session-option { display: grid; grid-template-columns: minmax(0, 1fr) auto auto; align-items: center; gap: 9px; padding: 8px 9px; border: 1px solid #e0e7ea; background: #fff; }
+.student-session-option.is-selected { border-color: #79afa5; box-shadow: inset 3px 0 0 var(--lab-teal); background: #f3faf8; }
+.student-session-option > div { display: grid; gap: 2px; min-width: 0; }
+.student-session-option > div b { color: #304d5d; font-size: 11px; }
+.student-session-option > div span { overflow: hidden; color: #6a808b; font-size: 10px; text-overflow: ellipsis; white-space: nowrap; }
 .project-card {
  overflow: hidden;
  border: 0;
@@ -1521,6 +1411,7 @@ onMounted(async () => {
  .session-ticket { grid-template-columns: 54px minmax(0, 1fr); }
  .ticket-action { grid-column: 1 / -1; justify-content: flex-start; padding: 0 10px 10px; }
  .project-actions, .student-booking-summary { padding-inline: 14px; }
+  .student-project-detail { grid-template-columns: 1fr; }
  .mode-choice { grid-template-columns: 1fr; }
  .intro-actions { flex-wrap: wrap; justify-content: flex-end; }
 }