diff --git a/src/assets/image/no-data-box.svg b/src/assets/image/no-data-box.svg
new file mode 100644
index 0000000..10a4241
--- /dev/null
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@@ -0,0 +1,79 @@
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+<stop offset="1" stop-color="#DCDEE0"/>
+</linearGradient>
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+<stop offset="1" stop-color="#DCDEE0"/>
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+<stop offset="1" stop-color="#DCDEE0"/>
+</linearGradient>
+<linearGradient id="paint13_linear_25188_157943" x1="-4.18762" y1="164.063" x2="19.2534" y2="229.682" gradientUnits="userSpaceOnUse">
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diff --git a/src/assets/styles/componets/_widget.scss b/src/assets/styles/componets/_widget.scss
index 999d33a..5622952 100644
--- a/src/assets/styles/componets/_widget.scss
+++ b/src/assets/styles/componets/_widget.scss
@@ -49,7 +49,9 @@
         .widget-item {
             border-radius: 6px;
             background: rgba(255, 255, 255, 0.95);
-            overflow: hidden;
+            // 内置组件的浮层（如课表班级切换下拉）需溢出卡片，故不裁切；
+            // 卡片圆角由自身背景维持，疑似溢出子元素（iframe）自带底部圆角。
+            overflow: visible;
             margin: 18px 14px 0 14px;
             &:first-child {
                 margin-top: 0;
@@ -71,17 +73,34 @@
             justify-content: space-between;
             align-items: center;
             border-bottom: 1px solid #e9e9e9;
+            // 卡头浅灰底（原版观感；合成色曾随壁纸漂移，这里显式钉死）
+            background: #f7f8f9;
+            // .widget-item 已改 overflow:visible，卡头底色的顶部圆角需自补
+            border-radius: 6px 6px 0 0;
             color: #344449;
             font-weight: 700;
             font-size: 16px;
             svg {
                 cursor: pointer;
             }
+            // 右区：内置组件 header 控件挂载点 + 关闭按钮（.widget-app-header 是 space-between，右区整体靠右）
+            .widget-header-right {
+                display: flex;
+                align-items: center;
+                gap: 6px;
+                min-width: 0;
+            }
+            .widget-header-extra {
+                display: flex;
+                align-items: center;
+            }
         }
         iframe {
             width: 100%;
             display: block;
             min-height: 150px;
+            // .widget-item 已改为 overflow:visible，页面片段的底部圆角自行补齐
+            border-radius: 0 0 6px 6px;
         }
     }
 
diff --git a/src/components/widgets/SyllabusWidget.vue b/src/components/widgets/SyllabusWidget.vue
index 16c3749..e2b5d36 100644
--- a/src/components/widgets/SyllabusWidget.vue
+++ b/src/components/widgets/SyllabusWidget.vue
@@ -8,80 +8,124 @@
             :paragraph="{ rows: 4 }"
             animated
         />
-        <div v-else-if="grid.length > 0" class="table-wrap">
-            <table class="my-table">
-                <tr>
-                    <th>节</th>
-                    <th v-for="week in weekCols" :key="week.Weeks">{{ week.weekName }}</th>
-                </tr>
-                <tr v-for="row in grid" :key="row.label">
-                    <td class="sec">{{ row.label }}</td>
-                    <td v-for="(cell, index) in row.cells" :key="index">
-                        <template v-if="cell">
-                            <div class="cla">{{ cell.ClassName }}</div>
-                            <div class="sub">{{ cell.SubName }}</div>
-                        </template>
-                    </td>
-                </tr>
-            </table>
-        </div>
-        <div v-else class="no-data">暂无数据</div>
+
+        <template v-else-if="classes.length > 0">
+            <!-- 班级切换器：挂进卡片 header（index.vue 埋的 wg-hdr-<id> 锚点）；多班（教师任教/班主任、校领导全校）才显示 -->
+            <Teleport v-if="classes.length > 1" :to="'#wg-hdr-' + widgetId">
+                <div class="cls-dd" :class="{ open: ddOpen }">
+                    <button type="button" class="cls-trigger" @click.stop="ddOpen = !ddOpen">
+                        <span class="cls-name">{{ currentClass.className }}</span>
+                        <svg class="caret" viewBox="0 0 1024 1024" width="10" height="10" aria-hidden="true">
+                            <path fill="currentColor" d="M512 704 128 320l64-64 320 320 320-320 64 64z" />
+                        </svg>
+                    </button>
+                    <div v-show="ddOpen" class="cls-panel">
+                        <div
+                            v-for="(cls, index) in classes"
+                            :key="cls.classId"
+                            class="cls-item"
+                            :class="{ on: index === clsIdx }"
+                            @click="pickClass(index)"
+                        >
+                            {{ cls.className }}
+                        </div>
+                    </div>
+                </div>
+            </Teleport>
+
+            <div v-if="slots.length > 0" class="table-wrap">
+                <table class="my-table">
+                    <thead>
+                        <tr>
+                            <th>节</th>
+                            <th v-for="day in dayCols" :key="day.index">{{ day.name }}</th>
+                        </tr>
+                    </thead>
+                    <tbody>
+                        <tr v-for="slot in slots" :key="slot.slotNo">
+                            <td class="sec">{{ cnNum(slot.slotNo) }}</td>
+                            <td v-for="day in dayCols" :key="day.index">
+                                <template v-if="subjectOf(slot, day.index)">
+                                    <div class="cla">{{ currentClass.className }}</div>
+                                    <div class="sub">{{ subjectOf(slot, day.index) }}</div>
+                                </template>
+                            </td>
+                        </tr>
+                    </tbody>
+                </table>
+            </div>
+            <div v-else class="no-data-box"></div>
+        </template>
+
+        <div v-else class="no-data-box"></div>
     </div>
 </template>
 
 <script lang="ts" setup>
-import { computed, onMounted, onUnmounted, ref } from "vue";
+import { computed, onBeforeUnmount, onMounted, ref } from "vue";
 import UserSettingApi from "@/api/UserSettingApi";
 
 defineProps<{ widgetId: number }>();
 const emit = defineEmits(["loaded"]);
 
+/** 节次中文数字（下标 0 = 第 1 节） */
+const CN_NUM = ["一", "二", "三", "四", "五", "六", "七", "八", "九", "十"];
+/** 星期名（下标 0~6 = 周一~周日，对齐 slots[].subjects 下标口径） */
+const WEEK_NAMES = ["周一", "周二", "周三", "周四", "周五", "周六", "周日"];
+
 const refRoot = ref<HTMLElement | null>(null);
 const loading = ref(true);
-const list = ref<any[]>([]);
+/** oapi data[]：每项一个班级（classId/className/timetable.slots…） */
+const classes = ref<any[]>([]);
+const clsIdx = ref(0);
+const ddOpen = ref(false);
 let observer: ResizeObserver | null = null;
 
-/** 表头星期（按 Weeks 去重升序），口径同旧 syllabus_index.js weekArr */
-const weekCols = computed(() => {
-    const nameByKey: Record<number, string> = {};
-    list.value.forEach(x => {
-        if (nameByKey[x.Weeks] === undefined) nameByKey[x.Weeks] = x.weekName;
-    });
-    return Object.keys(nameByKey)
-        .map(key => ({ Weeks: Number(key), weekName: nameByKey[Number(key)] }))
-        .sort((a, b) => a.Weeks - b.Weeks);
+const currentClass = computed<any>(() => classes.value[clsIdx.value] || {});
+
+/** 节次行：按 slotNo 升序（R2：按接口实际返回渲染） */
+const slots = computed<any[]>(() => {
+    const list = currentClass.value && currentClass.value.timetable && currentClass.value.timetable.slots;
+    if (!Array.isArray(list)) return [];
+    return [...list].sort((a, b) => ((a && a.slotNo) || 0) - ((b && b.slotNo) || 0));
 });
 
-/** 行节次（按 CourseTimes 去重升序），口径同旧 courseArr */
-const courseRows = computed(() => {
-    const nameByKey: Record<number, string> = {};
-    list.value.forEach(x => {
-        if (nameByKey[x.CourseTimes] === undefined) nameByKey[x.CourseTimes] = x.CourseName;
-    });
-    return Object.keys(nameByKey)
-        .map(key => ({ CourseTimes: Number(key), CourseName: nameByKey[Number(key)] }))
-        .sort((a, b) => a.CourseTimes - b.CourseTimes);
+/** 星期列：恒 周一~周五；周六/周日有课才追加（R3） */
+const dayCols = computed(() => {
+    const cols = [0, 1, 2, 3, 4];
+    if (slots.value.some(slot => subjectOf(slot, 5))) cols.push(5);
+    if (slots.value.some(slot => subjectOf(slot, 6))) cols.push(6);
+    return cols.map(index => ({ index, name: WEEK_NAMES[index] }));
 });
 
-const grid = computed(() => {
-    const cellByKey: Record<string, any> = {};
-    list.value.forEach(x => {
-        cellByKey[`${x.CourseTimes}-${x.Weeks}`] = x;
-    });
-    return courseRows.value.map(course => ({
-        label: (course.CourseName || "").replace("第", "").replace("节", ""),
-        cells: weekCols.value.map(week => cellByKey[`${course.CourseTimes}-${week.Weeks}`]),
-    }));
-});
+function subjectOf(slot: any, index: number): string {
+    const arr = slot && slot.subjects;
+    if (!Array.isArray(arr) || !arr[index]) return "";
+    return String(arr[index]);
+}
+
+function cnNum(slotNo: number): string {
+    return CN_NUM[slotNo - 1] || String(slotNo);
+}
+
+function pickClass(index: number) {
+    clsIdx.value = index;
+    ddOpen.value = false;
+}
+
+function closeDropdown() {
+    ddOpen.value = false;
+}
 
 onMounted(async () => {
+    document.addEventListener("click", closeDropdown);
     if (window.ResizeObserver && refRoot.value) {
         observer = new ResizeObserver(reportHeight);
         observer.observe(refRoot.value);
     }
     try {
         const data: any = await UserSettingApi.getWidgetData("syllabus", "");
-        list.value = Array.isArray(data) ? data : [];
+        classes.value = Array.isArray(data) ? data : [];
     } catch (e) {
         console.warn("[widget] syllabus 取数失败", e);
     }
@@ -89,7 +133,8 @@ onMounted(async () => {
     reportHeight();
 });
 
-onUnmounted(() => {
+onBeforeUnmount(() => {
+    document.removeEventListener("click", closeDropdown);
     if (observer) observer.disconnect();
 });
 
@@ -100,8 +145,73 @@ function reportHeight() {
 
 <style lang="scss" scoped>
 .wg-syllabus {
-    padding: 4px 0 10px;
+    padding: 0 0 10px;
 }
+
+/* ---------- 班级切换器（下拉；渲染在卡片 header 内，见 index.vue 的 wg-hdr-<id> 锚点） ---------- */
+.cls-dd {
+    position: relative;
+}
+.cls-trigger {
+    display: inline-flex;
+    align-items: center;
+    gap: 4px;
+    border: 0;
+    background: transparent;
+    cursor: pointer;
+    font-family: inherit;
+    // header 是 700 粗体，切换器属次级信息 → 复位常规字重
+    font-weight: 400;
+    font-size: 13px;
+    color: #344449;
+    padding: 3px 8px;
+    border-radius: 6px;
+    line-height: 1.5;
+
+    &:hover {
+        background: #eef1f5;
+    }
+    .caret {
+        color: #98a2b0;
+        transition: transform 0.18s;
+    }
+}
+.cls-dd.open .caret {
+    transform: rotate(180deg);
+}
+.cls-panel {
+    position: absolute;
+    top: calc(100% + 6px);
+    right: 0;
+    z-index: 30;
+    min-width: 132px;
+    max-height: 264px;
+    overflow-y: auto;
+    background: #fff;
+    border: 1px solid #e7eaee;
+    border-radius: 8px;
+    box-shadow: 0 8px 24px rgba(16, 24, 40, 0.14);
+    padding: 4px;
+}
+.cls-item {
+    padding: 8px 12px;
+    border-radius: 6px;
+    font-size: 13px;
+    color: #344449;
+    cursor: pointer;
+    white-space: nowrap;
+
+    &:hover {
+        background: #f5f8fb;
+    }
+    &.on {
+        color: #2d8cf0;
+        background: #f0f7ff;
+        font-weight: 600;
+    }
+}
+
+/* ---------- 课表 ---------- */
 .table-wrap {
     padding: 0 15px;
 }
@@ -109,18 +219,19 @@ function reportHeight() {
     width: 100%;
     border-collapse: collapse;
     th {
-        line-height: 20px;
-        padding: 8px 0;
+        height: 44px;
+        font-size: 13px;
         font-weight: 700;
-        font-size: 12px;
         color: #6e7c87;
+        text-align: center;
     }
     td {
-        border-top: 1px solid #f7f7f7;
-        line-height: 15px;
-        padding: 8px 0;
+        height: 52px;
+        border-top: 1px solid #f2f4f6;
+        padding: 4px 2px;
         text-align: center;
-        font-size: 12px;
+        font-size: 13px;
+        vertical-align: middle;
     }
     td.sec {
         color: #6e7c87;
@@ -128,17 +239,19 @@ function reportHeight() {
     }
     .cla {
         color: #344449;
+        line-height: 1.35;
     }
     .sub {
         color: #98a2b0;
+        line-height: 1.35;
+        font-size: 12px;
     }
 }
-.no-data {
-    min-height: 90px;
-    display: flex;
-    align-items: center;
-    justify-content: center;
-    color: #b9c2cc;
-    font-size: 13px;
+/* 空态：沿用原版 no-data-box.svg（插画 + 转曲「暂无数据」文案）。
+   原版规则为 background-size:100px 100px（会压扁），此处取 100px auto 保比例。 */
+.no-data-box {
+    min-height: 130px;
+    background: url("../../assets/image/no-data-box.svg") no-repeat 50% 50%;
+    background-size: 100px auto;
 }
 </style>
diff --git a/src/views/index.vue b/src/views/index.vue
index 7b3918b..af7211c 100644
--- a/src/views/index.vue
+++ b/src/views/index.vue
@@ -99,14 +99,18 @@
                     <div class="widget-item pr" v-for="item in widgetAppList">
                         <div class="widget-app-header">
                             <span>{{ item.name }}</span>
-                            <SvgIcon
-                                @click="onWidgetSelItemClick(item.id)"
-                                class="fr"
-                                name="widget-close"
-                                size="18"
-                                color="#999999"
-                                hoverColor="#646566"
-                            />
+                            <!-- 内置组件在 header 里的挂载点：组件用 <Teleport> 把自身控件放进来（如课表班级切换器） -->
+                            <div class="widget-header-right">
+                                <span class="widget-header-extra" :id="'wg-hdr-' + item.id"></span>
+                                <SvgIcon
+                                    @click="onWidgetSelItemClick(item.id)"
+                                    class="fr"
+                                    name="widget-close"
+                                    size="18"
+                                    color="#999999"
+                                    hoverColor="#646566"
+                                />
+                            </div>
                         </div>
                         <!-- ① front 工程内置组件：内容在代码库，不走 iframe -->
                         <component