diff --git a/tests/clazz-dual-view.spec.ts b/tests/clazz-dual-view.spec.ts
index 12712d8..ec78a25 100644
--- a/tests/clazz-dual-view.spec.ts
+++ b/tests/clazz-dual-view.spec.ts
@@ -71,7 +71,7 @@ test.describe('排课双视图切换（阿难账号）', () => {
     await expect(firstHeader.locator('.header-time')).toBeVisible();
 
     // Day sidebar should show weekday labels (周一 ~ 周日)
-    const dayCells = page.locator('.day-cell');
+    const dayCells = page.locator('.sidebar-row');
     await expect(dayCells.first()).toBeVisible();
     expect(await dayCells.count()).toBe(7);
 
@@ -136,6 +136,42 @@ test.describe('排课双视图切换（阿难账号）', () => {
     expect(hasStudents).toBeGreaterThanOrEqual(0);
   });
 
+  test('矩阵视图同一时段多节课横向排列', async ({ page }) => {
+    await loginAsTeacher(page);
+    await page.goto('/clazz', { waitUntil: 'domcontentloaded', timeout: 60_000 });
+    await expect(page.locator('#app')).toBeVisible({ timeout: 60_000 });
+    await page.waitForTimeout(3000);
+
+    // Switch to matrix
+    await page.locator('.view-toolbar button', { hasText: '矩阵' }).click();
+    await page.waitForTimeout(1500);
+
+    // Find a cell with 2+ event blocks and verify it uses flex row
+    const isHorizontal = await page.evaluate(() => {
+      const cells = document.querySelectorAll('.event-cell');
+      for (const cell of cells) {
+        const blocks = cell.querySelectorAll('.event-block');
+        if (blocks.length >= 2) {
+          const style = window.getComputedStyle(cell);
+          return style.display === 'flex' && style.flexDirection === 'row';
+        }
+      }
+      return false;
+    });
+
+    if (!isHorizontal) {
+      const hasMulti = await page.evaluate(() => {
+        const cells = document.querySelectorAll('.event-cell');
+        return Array.from(cells).some(c => c.querySelectorAll('.event-block').length >= 2);
+      });
+      if (!hasMulti) {
+        test.skip(true, '无同一时段多节课数据');
+        return;
+      }
+    }
+    expect(isHorizontal).toBe(true);
+  });
+
   test('从矩阵视图切换回日历视图后日历正常显示', async ({ page }) => {
     await loginAsTeacher(page);
     await page.goto('/clazz', { waitUntil: 'domcontentloaded', timeout: 60_000 });
diff --git a/tests/clazz-supervisor-matrix.spec.ts b/tests/clazz-supervisor-matrix.spec.ts
new file mode 100644
index 0000000..b19f120
--- /dev/null
+++ b/tests/clazz-supervisor-matrix.spec.ts
@@ -0,0 +1,194 @@
+import { expect, test } from './fixtures';
+
+const moicenUnionid = process.env.MOICEN_E2E_UNIONID?.trim();
+test.skip(!moicenUnionid, 'MOICEN_E2E_UNIONID 未设置');
+
+/**
+ * 角色选择器在 action-sheet 中的索引：
+ * ["测试员","学生","教师","管理员","主管教师"]
+ */
+const ROLE_TEACHER = 2;
+const ROLE_SUPERVISOR = 4;
+
+const SUBSIDIARY_TEACHER_NAME = '周晓慧';
+
+test.describe('主管老师矩阵视图', () => {
+
+  async function loginAsTeacher(page: any) {
+    const q = new URLSearchParams({ unionid: moicenUnionid!, status: '2' });
+    await page.goto(`/?${q.toString()}`, { waitUntil: 'domcontentloaded', timeout: 60_000 });
+    await expect(page.locator('#app')).toBeVisible({ timeout: 60_000 });
+    await page.waitForTimeout(3000);
+
+    const rs = page.getByText('请选择您的登录身份');
+    if (await rs.isVisible().catch(() => false)) {
+      const items = page.locator('.van-grid-item');
+      const count = await items.count();
+      if (count >= 3) {
+        await items.nth(ROLE_TEACHER).click();
+      } else {
+        await items.first().click();
+      }
+      await page.waitForTimeout(3000);
+    }
+  }
+
+  async function switchToRole(page: any, roleIndex: number) {
+    const roleSwitcher = page.locator('.van-icon-exchange');
+    await expect(roleSwitcher).toBeVisible({ timeout: 15_000 });
+    await roleSwitcher.click();
+    await page.locator('.van-action-sheet').waitFor({ state: 'visible', timeout: 10_000 });
+    await page.waitForTimeout(1000);
+
+    const roleBtn = page.locator('.van-action-sheet__item').nth(roleIndex);
+    await expect(roleBtn).toBeVisible();
+    await roleBtn.click();
+    await page.waitForTimeout(1500);
+
+    const confirmDialog = page.locator('.van-dialog__confirm');
+    if (await confirmDialog.isVisible().catch(() => false)) {
+      await confirmDialog.click();
+      await page.waitForTimeout(3000);
+    }
+    await page.waitForTimeout(2000);
+  }
+
+  async function switchToMatrixView(page: any) {
+    const matrixBtn = page.locator('.view-toolbar button', { hasText: '矩阵' });
+    await expect(matrixBtn).toBeVisible({ timeout: 10_000 });
+    await matrixBtn.click();
+    await page.waitForTimeout(1500);
+    await expect(page.locator('.matrix-container')).toBeVisible({ timeout: 10_000 });
+  }
+
+  test('教师角色下矩阵视图不显示下属老师（周晓慧）的课程', async ({ page }) => {
+    test.setTimeout(120_000);
+
+    await loginAsTeacher(page);
+    await page.goto('/clazz', { waitUntil: 'domcontentloaded', timeout: 60_000 });
+    await expect(page.locator('#app')).toBeVisible({ timeout: 60_000 });
+    await page.waitForTimeout(3000);
+
+    await switchToMatrixView(page);
+
+    // Collect all teacher names from event blocks
+    const teacherNames = await page.evaluate(() => {
+      return Array.from(document.querySelectorAll('.ev-teacher'))
+        .map(el => el.textContent?.trim())
+        .filter(Boolean);
+    });
+
+    // In TEACHER role, 周晓慧's courses should NOT appear
+    const hasZhouXiaohui = teacherNames.includes(SUBSIDIARY_TEACHER_NAME);
+    expect(hasZhouXiaohui).toBe(false);
+
+    // footer-subsidiary should not exist in TEACHER role
+    const footerSubsidiary = page.locator('.footer-subsidiary');
+    await expect(footerSubsidiary).not.toBeVisible();
+  });
+
+  test('切换到主管老师角色后矩阵视图显示周晓慧的课程（不同颜色）', async ({ page }) => {
+    test.setTimeout(120_000);
+
+    await loginAsTeacher(page);
+
+    // Go to TEACHER profile to open role switcher
+    await page.goto('/teacher/profile', { waitUntil: 'domcontentloaded', timeout: 60_000 });
+    await expect(page.locator('#app')).toBeVisible({ timeout: 60_000 });
+    await page.waitForTimeout(3000);
+
+    // Switch to SUPERVISOR role
+    await switchToRole(page, ROLE_SUPERVISOR);
+
+    // Navigate to clazz page
+    await page.goto('/clazz', { waitUntil: 'domcontentloaded', timeout: 60_000 });
+    await expect(page.locator('#app')).toBeVisible({ timeout: 60_000 });
+    await page.waitForTimeout(5000);
+
+    // Verify subsidiary teacher tags in footer
+    const footerSubsidiary = page.locator('.footer-subsidiary');
+    await expect(footerSubsidiary).toBeVisible({ timeout: 15_000 });
+    const tagCount = await footerSubsidiary.locator('.van-tag').count();
+    expect(tagCount).toBeGreaterThanOrEqual(1);
+
+    // Verify 周晓慧 tag is present
+    const zhouTag = footerSubsidiary.locator('.van-tag', { hasText: SUBSIDIARY_TEACHER_NAME });
+    await expect(zhouTag).toBeVisible();
+
+    // Switch to matrix view
+    await switchToMatrixView(page);
+
+    // Verify 周晓慧's courses appear
+    const teacherNames = await page.evaluate(() => {
+      return Array.from(document.querySelectorAll('.ev-teacher'))
+        .map(el => el.textContent?.trim())
+        .filter(Boolean);
+    });
+
+    if (teacherNames.length === 0) {
+      test.skip(true, '排课数据为空');
+      return;
+    }
+
+    expect(teacherNames).toContain(SUBSIDIARY_TEACHER_NAME);
+
+    // Verify different courses have different background colors
+    const teacherColorMap = await page.evaluate(() => {
+      const map: Record<string, string> = {};
+      document.querySelectorAll('.event-block').forEach(block => {
+        const teacher = block.querySelector('.ev-teacher')?.textContent?.trim();
+        const bgColor = getComputedStyle(block).backgroundColor;
+        if (teacher && bgColor && teacher !== '未设置老师') {
+          map[teacher] = map[teacher] || bgColor;
+        }
+      });
+      return map;
+    });
+
+    // At least 2 different colors should be used (own + subsidiary)
+    const colorSet = new Set(Object.values(teacherColorMap));
+    expect(colorSet.size).toBeGreaterThanOrEqual(2);
+  });
+
+  test('从主管老师切回教师角色后周晓慧的课程消失', async ({ page }) => {
+    test.setTimeout(180_000);
+
+    await loginAsTeacher(page);
+
+    // Switch to SUPERVISOR first
+    await page.goto('/teacher/profile', { waitUntil: 'domcontentloaded', timeout: 60_000 });
+    await expect(page.locator('#app')).toBeVisible({ timeout: 60_000 });
+    await page.waitForTimeout(3000);
+    await switchToRole(page, ROLE_SUPERVISOR);
+
+    // Verify clazz page shows subsidiary data
+    await page.goto('/clazz', { waitUntil: 'domcontentloaded', timeout: 60_000 });
+    await expect(page.locator('#app')).toBeVisible({ timeout: 60_000 });
+    await page.waitForTimeout(5000);
+
+    const footerSubsidiary = page.locator('.footer-subsidiary');
+    await expect(footerSubsidiary).toBeVisible({ timeout: 15_000 });
+
+    // Switch back to TEACHER via supervisor profile
+    await page.goto('/supervisor/profile', { waitUntil: 'domcontentloaded', timeout: 60_000 });
+    await expect(page.locator('#app')).toBeVisible({ timeout: 60_000 });
+    await page.waitForTimeout(3000);
+    await switchToRole(page, ROLE_TEACHER);
+
+    // Verify clazz page no longer shows subsidiary data
+    await page.goto('/clazz', { waitUntil: 'domcontentloaded', timeout: 60_000 });
+    await expect(page.locator('#app')).toBeVisible({ timeout: 60_000 });
+    await page.waitForTimeout(5000);
+
+    await expect(footerSubsidiary).not.toBeVisible();
+
+    // 周晓慧's name should not appear in event blocks
+    const teacherNames = await page.evaluate(() => {
+      return Array.from(document.querySelectorAll('.ev-teacher'))
+        .map(el => el.textContent?.trim())
+        .filter(Boolean);
+    });
+
+    expect(teacherNames).not.toContain(SUBSIDIARY_TEACHER_NAME);
+  });
+});