diff --git a/src/pages/clazz/components/ClazzMatrixView.vue b/src/pages/clazz/components/ClazzMatrixView.vue
index ab95b9f..0194c73 100644
--- a/src/pages/clazz/components/ClazzMatrixView.vue
+++ b/src/pages/clazz/components/ClazzMatrixView.vue
@@ -29,6 +29,7 @@
               v-for="slot in timeSlots"
               :key="slot.key"
               class="header-cell sr-cell"
+              :style="{ width: columnWidths[slot.key] }"
             >
               <div class="header-label">{{ slot.label }}</div>
               <div class="header-time">{{ slot.time }}</div>
@@ -46,6 +47,7 @@
               v-for="slot in timeSlots"
               :key="`${day.dateKey}_${slot.key}`"
               class="event-cell sr-cell"
+              :style="{ width: columnWidths[slot.key] }"
             >
               <template v-if="eventMap[day.dateKey]?.[slot.key]?.length">
                 <div
@@ -154,6 +156,21 @@ export default defineComponent({
       return map;
     });
 
+    /** 每列宽度 = 按该列最多课块数量计算，课块横向排列时宽度自适应 */
+    const columnWidths = computed(() => {
+      const widths: Record<string, string> = {};
+      for (const slot of timeSlots.value) {
+        let maxN = 1;
+        for (const day of weekDays.value) {
+          const evts = eventMap.value[day.dateKey]?.[slot.key] || [];
+          if (evts.length > maxN) maxN = evts.length;
+        }
+        // 每个课块至少 1.4rem，列宽 = 数量 × 1.4rem + 间距
+        widths[slot.key] = `${Math.max(1.8, maxN * 1.4 + (maxN - 1) * 0.03)}rem`;
+      }
+      return widths;
+    });
+
     function eventStyle(ev: NormalizedClazzEvent) {
       return {
         backgroundColor: ev.color || 'rgba(55, 136, 216, 0.12)',
@@ -169,7 +186,7 @@ export default defineComponent({
       emit('event-click', ev);
     }
 
-    return { timeSlots, weekDays, eventMap, fmtTime, eventStyle, onCellClick, onEventClick };
+    return { timeSlots, weekDays, eventMap, columnWidths, fmtTime, eventStyle, onCellClick, onEventClick };
   },
 });
 </script>
@@ -306,8 +323,12 @@ export default defineComponent({
   }
 }
 
-/* ─── 课块容器 ─── */
+/* ─── 课块容器（横向排列） ─── */
 .event-cell {
+  display: flex;
+  flex-direction: row;
+  gap: 0.03rem;
+  align-items: stretch;
   padding: 0.03rem;
   border-bottom: 1px solid #f5f5f5;
   border-left: 1px solid #f5f5f5;
@@ -315,13 +336,12 @@ export default defineComponent({
 }
 
 .event-block {
+  flex: 1;
+  min-width: 0;
   padding: 0.04rem 0.06rem;
   border-radius: 0.04rem;
   cursor: pointer;
   overflow: hidden;
-  margin-bottom: 0.02rem;
-
-  &:last-child { margin-bottom: 0; }
 
   .ev-title {
     font-weight: 600;
diff --git a/src/pages/clazz/index.vue b/src/pages/clazz/index.vue
index 546fecc..e81c97d 100644
--- a/src/pages/clazz/index.vue
+++ b/src/pages/clazz/index.vue
@@ -307,6 +307,10 @@ export default defineComponent({
       repeatList: computed(() => store.repeatList),
       subsidiaryClazzByHtyId: computed(() => store.subsidiaryClazzByHtyId),
       getViewingSubsidiaries: () => viewingSubsidiaries.value,
+      getSubsidiaryColor: (htyId) => {
+        const idx = subsidiaries.value.findIndex(x => x.to_user_id === htyId);
+        return idx >= 0 ? Colors[idx] : undefined;
+      },
     });
 
     // 切换视图时缓存
@@ -493,8 +497,8 @@ export default defineComponent({
     const comments_count = computed(() => count_comments(store.current.id))
 
     const searchForSubsidiaries = async () => {
-      // query clazz rows of subsidiary teachers under current user if user is supervisor
-      if (usingUser.store.currentRole === HtyBaseRoles.TEACHER && usingUser.store.current.roles.some(r => r.role_key === HtySuperRoles.SUPERVISOR)) {
+      // 主管老师角色下才加载下属老师的排课
+      if (usingUser.store.currentRole !== HtyBaseRoles.TEACHER && usingUser.store.current.roles.some(r => r.role_key === HtySuperRoles.SUPERVISOR)) {
         subsidiaries.value = usingSupervisor.store.subsidiaries;
         if (!subsidiaries.value.length) {
           await usingSupervisor.getSubsidiaries();
diff --git a/src/pages/clazz/useClazzViewModel.ts b/src/pages/clazz/useClazzViewModel.ts
index d797b7d..7bc7143 100644
--- a/src/pages/clazz/useClazzViewModel.ts
+++ b/src/pages/clazz/useClazzViewModel.ts
@@ -98,8 +98,10 @@ export function useClazzViewModel(params: {
   subsidiaryClazzByHtyId: ComputedRef<Record<string, { list: Clazz[]; repeatList: ClazzRepeatRow[] }>>;
   /** Getter 避免 TDZ hoisting 问题 */
   getViewingSubsidiaries: () => string[];
+  /** 下属老师颜色映射，htyId → 颜色 */
+  getSubsidiaryColor?: (htyId: string) => string | undefined;
 }) {
-  const { list, repeatList, subsidiaryClazzByHtyId, getViewingSubsidiaries } = params;
+  const { list, repeatList, subsidiaryClazzByHtyId, getViewingSubsidiaries, getSubsidiaryColor } = params;
 
   /** 扁平化的标准化事件列表 */
   const normalizedEvents = computed<NormalizedClazzEvent[]>(() => {
@@ -125,15 +127,16 @@ export function useClazzViewModel(params: {
     // 下属老师的排课
     for (const [htyId, data] of Object.entries(subsidiaryClazzByHtyId.value)) {
       const hidden = !getViewingSubsidiaries().includes(htyId);
+      const color = getSubsidiaryColor?.(htyId);
       for (const item of data.list) {
         if (item.is_delete) continue;
-        out.push(makeEvent(item, false, true, { subsidiaryTeacherId: htyId, visible: !hidden }));
+        out.push(makeEvent(item, false, true, { subsidiaryTeacherId: htyId, visible: !hidden, color }));
       }
       for (const row of data.repeatList) {
         if (row.is_delete) continue;
-        out.push(makeEvent(row, true, true, { subsidiaryTeacherId: htyId, visible: !hidden }));
+        out.push(makeEvent(row, true, true, { subsidiaryTeacherId: htyId, visible: !hidden, color }));
         if (row.instance && row.instance.id) {
-          out.push(makeEvent(row.instance, false, true, { subsidiaryTeacherId: htyId, visible: !hidden }));
+          out.push(makeEvent(row.instance, false, true, { subsidiaryTeacherId: htyId, visible: !hidden, color }));
         }
       }
     }