diff --git a/api/student.ts b/api/student.ts
index c720006..f20c8ee 100644
--- a/api/student.ts
+++ b/api/student.ts
@@ -50,10 +50,22 @@ export type StudentHomeMetrics = {
 	accuracyToday: number | null
 	learningDaysThisWeek: number
 	shouldStudyDaysThisWeek: number
-	pendingHomeworkCount: number
+	pendingPackCount: number
 	updatedAt: string
 }
 
+export type ParentStudentTodayInfoResult = {
+	userId: number | string
+	date: string
+	todayOnline: boolean
+	todayCheckIn: boolean
+	todayStudyDuration: number
+	todayAccuracyRate: number
+	weekStudyDays: number
+	weekShouldStudyDays: number
+	pendingPackCount: number
+}
+
 export type TodayLearningCourse = {
 	id: string
 	time: string
@@ -136,10 +148,53 @@ export type StudentStudyReport = {
 	studentClass: string
 	updatedAtText: string
 	subjects: StudyReportSubject[]
+	hasWeekReport: boolean
+	hasMonthReport: boolean
 	week: StudyReportPeriod
 	month: StudyReportPeriod
 }
 
+export type ParentLearningReportType = 1 | 2
+
+export type ParentLearningDurationDetail = {
+	StartDate: string
+	EndDate: string
+	StudyDurationTime: number
+	OvercomeStudyDurationTime: number
+	UnOvercomeStudyDurationTime: number
+}
+
+export type ParentLearningReportDetailItem = {
+	SubjectId: string
+	SubjectName: string | null
+	NewKnowledgePointCount: number
+	OvercomeKnowledgePointCount: number
+	ContinuousStudyDays: number
+	AverageAccuracy: number
+	StudyDurationTime: number
+	OvercomeStudyDurationTime: number
+	UnOvercomeStudyDurationTime: number
+	StudyDurationDetails: ParentLearningDurationDetail[]
+}
+
+export type ParentLearningReportResult = {
+	UserId: string
+	UserName: string | null
+	ClassId: string
+	ClassName: string | null
+	SchoolId: string
+	SchoolName: string | null
+	CloudSchoolId: string
+	CloudSchoolName: string | null
+	ReportType: ParentLearningReportType
+	ReportTypeName: string
+	HasReport: boolean
+	PeriodStart: string | null
+	PeriodEnd: string | null
+	Summary: ParentLearningReportDetailItem | null
+	Subjects: ParentLearningReportDetailItem[]
+}
+
 export type TodayLearningDetail = {
 	studentId: string
 	studentName: string
@@ -205,9 +260,12 @@ export type LearningTaskItem = {
 	title: string
 	status: 'not_started' | 'in_progress' | 'success' | 'failed'
 	statusText: string
+	resultText: string
 	accuracyText: string
 	answerText: string
+	attemptText: string
 	deadlineText: string
+	metaText: string
 }
 
 export type LearningTaskGroup = {
@@ -227,6 +285,7 @@ export type StudentLearningTasks = {
 	studentName: string
 	studentGrade: string
 	studentClass: string
+	totalCount: number
 	pendingCount: number
 	completedCount: number
 	failedCount: number
@@ -244,6 +303,8 @@ export type StudentAlert = {
 	content: string
 	occurredAt: string
 	isRead: boolean
+	isTriggered: boolean
+	statusName: string
 }
 
 export type StudentAlertList = {
@@ -265,7 +326,7 @@ export type StudentLearningWarningItem = {
 }
 
 export type StudentLearningWarningResult = {
-	userId: string
+	userId: number | string
 	date: string
 	totalCount: number
 	triggeredCount: number
@@ -351,7 +412,7 @@ export function apiGetBoundStudents(): Promise<ApiResponse<{ students: BoundStud
  * 获取指定学生的首页今日学习概览。
  */
 export function apiGetStudentHomeMetrics(studentId: string, showLoading: boolean = true): Promise<ApiResponse<StudentHomeMetrics> | null> {
-	return get<any>(`/api/v1/ParentStudentToday/GetTodayInfo?userId=${studentId}`, undefined, { showLoading }).then((res) => {
+	return get<ParentStudentTodayInfoResult>(`/api/v1/ParentStudentToday/GetTodayInfo?userId=${encodeURIComponent(studentId)}`, undefined, { showLoading }).then((res) => {
 		if (!res || !res.data) return null
 		return {
 			code: res.code,
@@ -360,11 +421,11 @@ export function apiGetStudentHomeMetrics(studentId: string, showLoading: boolean
 				studentId: String(res.data.userId ?? studentId),
 				onlineToday: Boolean(res.data.todayOnline),
 				checkedInToday: Boolean(res.data.todayCheckIn),
-				learningMinutesToday: Math.floor((Number(res.data.todayStudyDuration) || 0) / 60),
-				accuracyToday: Number(res.data.todayAccuracyRate) || 0,
+				learningMinutesToday: Math.floor(Number(res.data.todayStudyDuration) || 0),
+				accuracyToday: res.data.todayAccuracyRate === null || res.data.todayAccuracyRate === undefined ? null : Number(res.data.todayAccuracyRate) || 0,
 				learningDaysThisWeek: Number(res.data.weekStudyDays) || 0,
 				shouldStudyDaysThisWeek: Number(res.data.weekShouldStudyDays) || 0,
-				pendingHomeworkCount: Number(res.data.pendingPackCount) || 0,
+				pendingPackCount: Number(res.data.pendingPackCount) || 0,
 				updatedAt: res.data.date || ''
 			}
 		}
@@ -372,21 +433,26 @@ export function apiGetStudentHomeMetrics(studentId: string, showLoading: boolean
 }
 
 /**
- * 获取指定学生今日学习预警，仅返回已触发的预警规则。
+ * 获取指定学生今日学习预警。已触发预警优先，其后展示未触发规则。
  */
-export function apiGetStudentLearningWarnings(studentId: string, showLoading: boolean = true): Promise<ApiResponse<StudentAlertList> | null> {
-	return get<any>(`/api/v1/ParentLearningWarning/GetTodayList?userId=${studentId}`, undefined, { showLoading }).then((res) => {
+export function apiGetStudentLearningWarnings(studentId: string, showLoading: boolean = true, limit?: number): Promise<ApiResponse<StudentAlertList> | null> {
+	return get<StudentLearningWarningResult>(`/api/v1/ParentLearningWarning/GetTodayList?userId=${encodeURIComponent(studentId)}`, undefined, { showLoading }).then((res) => {
 		if (!res || !res.data || !Array.isArray(res.data.items)) return null
-		const list: StudentAlert[] = res.data.items
-			.filter((item: any) => Boolean(item.isTriggered))
-			.map((item: any, index: number) => ({
-				id: `${studentId}-${item.type ?? index}`,
-				level: 'high',
-				title: item.title || '学习预警',
-				content: item.description || item.statusName || '',
-				occurredAt: res.data.date || '',
-				isRead: false
-			}))
+		const warningData = res.data
+		const triggeredItems = warningData.items.filter((item: StudentLearningWarningItem) => Boolean(item.isTriggered))
+		const normalItems = warningData.items.filter((item: StudentLearningWarningItem) => !Boolean(item.isTriggered))
+		const sourceItems = triggeredItems.concat(normalItems)
+		const visibleItems = limit === undefined ? sourceItems : sourceItems.slice(0, limit)
+		const list: StudentAlert[] = visibleItems.map((item: StudentLearningWarningItem, index: number) => ({
+			id: `${studentId}-${item.type ?? index}`,
+			level: item.isTriggered ? 'high' : 'low',
+			title: item.title || '学习预警',
+			content: item.description || item.statusName || '',
+			occurredAt: warningData.date || '',
+			isRead: !item.isTriggered,
+			isTriggered: Boolean(item.isTriggered),
+			statusName: item.statusName || ''
+		}))
 		return {
 			code: res.code,
 			message: res.message,
@@ -395,8 +461,8 @@ export function apiGetStudentLearningWarnings(studentId: string, showLoading: bo
 				pagination: {
 					page: 1,
 					pageSize: list.length,
-					total: list.length,
-					hasMore: false
+					total: sourceItems.length,
+					hasMore: limit !== undefined && sourceItems.length > list.length
 				}
 			}
 		}
@@ -411,10 +477,176 @@ export function apiGetTodayLearningDetail(studentId: string, showLoading: boolea
 }
 
 /**
- * 获取学生学情报告。接口一次返回周报、月报和全部科目趋势数据。
+ * 获取学生最新一期学情报告。新接口按报告类型分别返回周报、月报，这里转换为页面统一结构。
  */
-export function apiGetStudentStudyReport(studentId: string, showLoading: boolean = true): Promise<ApiResponse<StudentStudyReport> | null> {
-	return get<StudentStudyReport>(`/api/parent/study-report?studentId=${studentId}`, undefined, { showLoading })
+export async function apiGetStudentStudyReport(studentId: string, showLoading: boolean = true): Promise<ApiResponse<StudentStudyReport> | null> {
+	const weekRes = await get<ParentLearningReportResult>(`/api/v1/ParentLearningReport/Get?userId=${encodeURIComponent(studentId)}&reportType=1`, undefined, { showLoading })
+	const monthRes = await get<ParentLearningReportResult>(`/api/v1/ParentLearningReport/Get?userId=${encodeURIComponent(studentId)}&reportType=2`, undefined, { showLoading: false })
+	const weekData = weekRes?.data ?? null
+	const monthData = monthRes?.data ?? null
+	if (!weekData && !monthData) return null
+
+	const sourceData = weekData ?? monthData
+	return {
+		code: weekRes?.code ?? monthRes?.code ?? 200,
+		message: weekRes?.message ?? monthRes?.message ?? 'SUCCESS',
+		data: {
+			studentId: String(sourceData?.UserId ?? studentId),
+			studentName: sourceData?.UserName ?? '',
+			studentGrade: '',
+			studentClass: sourceData?.ClassName ?? '',
+			updatedAtText: formatReportDate(sourceData?.PeriodEnd),
+			subjects: buildStudyReportSubjects(weekData, monthData),
+			hasWeekReport: Boolean(weekData?.HasReport && weekData.Summary),
+			hasMonthReport: Boolean(monthData?.HasReport && monthData.Summary),
+			week: buildStudyReportPeriod(weekData, 1),
+			month: buildStudyReportPeriod(monthData, 2)
+		}
+	}
+}
+
+function buildStudyReportSubjects(weekData: ParentLearningReportResult | null, monthData: ParentLearningReportResult | null): StudyReportSubject[] {
+	const subjects: StudyReportSubject[] = [{ id: '0', name: '全部科目' }]
+	const sourceSubjects = weekData?.Subjects?.length ? weekData.Subjects : monthData?.Subjects ?? []
+	sourceSubjects.forEach((item: ParentLearningReportDetailItem) => {
+		const id = String(item.SubjectId ?? '')
+		if (id && subjects.every((subject: StudyReportSubject) => subject.id !== id)) {
+			subjects.push({ id, name: item.SubjectName ?? '未命名科目' })
+		}
+	})
+	return subjects
+}
+
+function buildStudyReportPeriod(report: ParentLearningReportResult | null, reportType: ParentLearningReportType): StudyReportPeriod {
+	if (!report?.HasReport || !report.Summary) return createEmptyStudyReportPeriod(reportType)
+	const summary = report.Summary
+	const detailItems = [summary].concat(Array.isArray(report.Subjects) ? report.Subjects : [])
+	let maxMinutes = 1
+	detailItems.forEach((item: ParentLearningReportDetailItem) => {
+		const details = Array.isArray(item.StudyDurationDetails) ? item.StudyDurationDetails : []
+		details.forEach((detail: ParentLearningDurationDetail) => {
+			maxMinutes = Math.max(maxMinutes, secondsToMinutes(detail.StudyDurationTime))
+		})
+	})
+	return {
+		rangeText: formatReportRange(report.PeriodStart, report.PeriodEnd),
+		statusTitle: `${report.ReportTypeName || (reportType === 1 ? '周报' : '月报')}已攻克 ${summary.OvercomeKnowledgePointCount || 0} 个知识点`,
+		statusDescription: `新增 ${summary.NewKnowledgePointCount || 0} 个知识点，累计学习 ${formatSecondsDuration(summary.StudyDurationTime)}，其中攻克成功学习 ${formatSecondsDuration(summary.OvercomeStudyDurationTime)}。`,
+		newMasteredPoints: Number(summary.OvercomeKnowledgePointCount) || 0,
+		consecutiveDays: Number(summary.ContinuousStudyDays) || 0,
+		averageAccuracy: Number(summary.AverageAccuracy) || 0,
+		scaleLabels: buildDurationScaleLabels(maxMinutes),
+		trends: detailItems.map((item: ParentLearningReportDetailItem) => buildStudyReportTrend(item, maxMinutes, reportType)),
+		activity: buildStudyReportActivity(summary, maxMinutes, reportType),
+		subjectMasteries: (Array.isArray(report.Subjects) ? report.Subjects : []).map((item: ParentLearningReportDetailItem) => buildStudyReportSubjectMastery(item))
+	}
+}
+
+function createEmptyStudyReportPeriod(reportType: ParentLearningReportType): StudyReportPeriod {
+	return {
+		rangeText: reportType === 1 ? '暂无周报' : '暂无月报',
+		statusTitle: '暂无学情报告',
+		statusDescription: '当前周期暂无报告数据。',
+		newMasteredPoints: 0,
+		consecutiveDays: 0,
+		averageAccuracy: 0,
+		scaleLabels: ['120分', '80分', '40分', '0分'],
+		trends: [],
+		activity: { summary: '暂无学习时长数据', activeDays: 0, totalDurationText: '0分钟', points: [] },
+		subjectMasteries: []
+	}
+}
+
+function buildStudyReportTrend(item: ParentLearningReportDetailItem, maxMinutes: number, reportType: ParentLearningReportType): StudyReportTrend {
+	const details = Array.isArray(item.StudyDurationDetails) ? item.StudyDurationDetails : []
+	return {
+		subjectId: String(item.SubjectId ?? '0'),
+		points: details.map((detail: ParentLearningDurationDetail, index: number) => {
+			const studyMinutes = secondsToMinutes(detail.StudyDurationTime)
+			const overcomeMinutes = secondsToMinutes(detail.OvercomeStudyDurationTime)
+			return {
+				label: formatDurationDetailLabel(detail, index, reportType),
+				value: studyMinutes,
+				average: overcomeMinutes,
+				valueHeight: scaleChartHeight(studyMinutes, maxMinutes, 72),
+				averageHeight: scaleChartHeight(overcomeMinutes, maxMinutes, 72)
+			}
+		})
+	}
+}
+
+function buildStudyReportActivity(summary: ParentLearningReportDetailItem, maxMinutes: number, reportType: ParentLearningReportType): StudyReportActivity {
+	const details = Array.isArray(summary.StudyDurationDetails) ? summary.StudyDurationDetails : []
+	return {
+		summary: `总学习 ${formatSecondsDuration(summary.StudyDurationTime)}，未攻克学习 ${formatSecondsDuration(summary.UnOvercomeStudyDurationTime)}。`,
+		activeDays: Number(summary.ContinuousStudyDays) || 0,
+		totalDurationText: formatSecondsDuration(summary.StudyDurationTime),
+		points: details.map((detail: ParentLearningDurationDetail, index: number) => {
+			const studyMinutes = secondsToMinutes(detail.StudyDurationTime)
+			const overcomeMinutes = secondsToMinutes(detail.OvercomeStudyDurationTime)
+			const unOvercomeMinutes = secondsToMinutes(detail.UnOvercomeStudyDurationTime)
+			return {
+				label: formatDurationDetailLabel(detail, index, reportType),
+				studyMinutes,
+				plannedMinutes: overcomeMinutes,
+				newMasteredCount: unOvercomeMinutes,
+				studyHeight: scaleChartHeight(studyMinutes, maxMinutes, 90),
+				plannedHeight: scaleChartHeight(overcomeMinutes, maxMinutes, 90),
+				newMasteredHeight: unOvercomeMinutes > 0 ? scaleChartHeight(unOvercomeMinutes, maxMinutes, 72) : 0
+			}
+		})
+	}
+}
+
+function buildStudyReportSubjectMastery(item: ParentLearningReportDetailItem): StudyReportSubjectMastery {
+	const newCount = Number(item.NewKnowledgePointCount) || 0
+	const overcomeCount = Number(item.OvercomeKnowledgePointCount) || 0
+	return {
+		subjectName: item.SubjectName ?? '未命名科目',
+		masteredCount: overcomeCount,
+		totalCount: newCount,
+		masteredPercent: newCount > 0 ? Math.min(100, Math.round(overcomeCount / newCount * 100)) : 0
+	}
+}
+
+function secondsToMinutes(seconds: number): number {
+	return Math.round((Number(seconds) || 0) / 60)
+}
+
+function scaleChartHeight(value: number, maxValue: number, maxHeight: number): number {
+	if (value <= 0 || maxValue <= 0) return 0
+	return Math.max(4, Math.round(value / maxValue * maxHeight))
+}
+
+function buildDurationScaleLabels(maxMinutes: number): string[] {
+	const top = Math.max(60, Math.ceil(maxMinutes / 30) * 30)
+	return [`${top}分`, `${Math.round(top * 2 / 3)}分`, `${Math.round(top / 3)}分`, '0分']
+}
+
+function formatSecondsDuration(seconds: number): string {
+	const totalMinutes = secondsToMinutes(seconds)
+	const hours = Math.floor(totalMinutes / 60)
+	const minutes = totalMinutes % 60
+	if (hours > 0 && minutes > 0) return `${hours}小时${minutes}分`
+	if (hours > 0) return `${hours}小时`
+	return `${minutes}分钟`
+}
+
+function formatReportRange(start: string | null | undefined, end: string | null | undefined): string {
+	if (!start || !end) return '暂无统计周期'
+	return `${formatReportDate(start)} - ${formatReportDate(end)}`
+}
+
+function formatReportDate(value: string | null | undefined): string {
+	if (!value) return '--'
+	const text = String(value)
+	if (text.length >= 10) return text.substring(5, 10).replace('-', '月') + '日'
+	return text
+}
+
+function formatDurationDetailLabel(detail: ParentLearningDurationDetail, index: number, reportType: ParentLearningReportType): string {
+	if (reportType === 2) return `第${index + 1}周`
+	return formatReportDate(detail.StartDate)
 }
 
 export function apiGetStudentVocabulary(studentId: string, showLoading: boolean = true): Promise<ApiResponse<StudentVocabulary> | null> {
@@ -463,7 +695,7 @@ export function apiGetStudentLearningTasks(studentId: string, showLoading: boole
  * 获取学生当天学习包任务。Status: 0 全部，1 待完成，2 已完成，3 未通过。
  */
 export function apiGetParentStudyPacks(studentId: string, status: ParentStudyPackStatus = 0, showLoading: boolean = true): Promise<ApiResponse<StudentLearningTasks> | null> {
-	return get<any>(`/api/v1/ParentStudyPack/GetTodayList?UserId=${studentId}&Status=${status}`, undefined, { showLoading }).then((res) => {
+	return get<any>(`/api/v1/ParentStudyPack/GetTodayList?userId=${encodeURIComponent(studentId)}&status=${status}`, undefined, { showLoading }).then((res) => {
 		if (!res || !res.data) return null
 		const statusMap: { [key: number]: LearningTaskItem['status'] } = {
 			0: 'not_started',
@@ -482,14 +714,38 @@ export function apiGetParentStudyPacks(studentId: string, status: ParentStudyPac
 			const tasks: LearningTaskItem[] = (Array.isArray(course.packs) ? course.packs : []).map((pack: any) => {
 				const taskStatus = statusMap[Number(pack.status)] || 'not_started'
 				const accuracy = pack.latestAccuracyRate === null || pack.latestAccuracyRate === undefined ? '--' : `${Number(pack.latestAccuracyRate) || 0}%`
+				const maxCount = Number(pack.maxOvercomeCount) || 0
+				const currentCount = Number(pack.currentAttemptNo || pack.completedAttemptCount) || 0
+				const remainingCount = Number(pack.remainingAttemptCount) || 0
+				const durationSecond = Number(pack.answerDurationSecond) || 0
+				const durationMinute = Math.floor(durationSecond / 60)
+				const attemptText = taskStatus === 'not_started'
+					? `尚未开始 · 最多 ${maxCount || 2} 次机会`
+					: `第 ${currentCount || 1} 次攻克 · 共 ${maxCount || currentCount || 1} 次`
+				const resultText = taskStatus === 'success'
+					? `第 ${currentCount || 1} 次攻克成功 · 共 ${maxCount || currentCount || 1} 次`
+					: taskStatus === 'failed'
+						? `攻克失败 · 剩余 ${remainingCount} 次机会`
+						: taskStatus === 'in_progress'
+							? `攻克中 · 剩余 ${remainingCount} 次机会`
+							: attemptText
+				const answerText = durationMinute > 0 ? `答题时长 ${durationMinute} 分钟` : '暂无答题时长'
+				const recordTime = formatTaskDateTime(pack.latestRecordTime)
+				const deadlineText = formatTaskDateTime(pack.deadlineTime)
+				const metaParts: string[] = [`正确率 ${accuracy}`, answerText]
+				if (recordTime !== '--') metaParts.push(`${recordTime} 完成`)
+				else if (deadlineText !== '--') metaParts.push(`${deadlineText} 截止`)
 				return {
 					id: String(pack.packId ?? pack.knowledgePointId ?? ''),
 					title: pack.name || '未命名学习任务',
 					status: taskStatus,
 					statusText: pack.statusName || statusTextMap[taskStatus],
+					resultText,
 					accuracyText: accuracy,
-					answerText: pack.completedAttemptCount ? `已完成 ${pack.completedAttemptCount} 次` : '尚未完成',
-					deadlineText: pack.deadlineTime || ''
+					answerText,
+					attemptText,
+					deadlineText,
+					metaText: metaParts.join(' · ')
 				}
 			})
 			return {
@@ -513,6 +769,7 @@ export function apiGetParentStudyPacks(studentId: string, status: ParentStudyPac
 				studentGrade: '',
 				studentClass: '',
 				pendingCount: Number(res.data.pendingCount) || 0,
+				totalCount: Number(res.data.totalCount) || groups.reduce((total: number, group: LearningTaskGroup) => total + group.tasks.length, 0),
 				completedCount: Number(res.data.completedCount) || 0,
 				failedCount: Number(res.data.failedCount) || 0,
 				groups
@@ -527,10 +784,16 @@ function formatTaskTime(value: any): string {
 	return text.length >= 16 ? text.substring(11, 16) : text
 }
 
+function formatTaskDateTime(value: any): string {
+	if (!value) return '--'
+	const text = String(value)
+	if (text.length < 16) return text
+	return `今天 ${text.substring(11, 16)}`
+}
+
 /**
- * 获取当前学生的预警信息。首页调用时 limit 固定为 3。
+ * 兼容旧调用签名，实际统一使用今日学习预警接口。
  */
-export function apiGetStudentAlerts(studentId: string, page: number = 1, pageSize: number = 20, limit?: number, showLoading: boolean = true): Promise<ApiResponse<StudentAlertList> | null> {
-	const suffix = limit ? `limit=${limit}` : `page=${page}&pageSize=${pageSize}`
-	return get<StudentAlertList>(`/api/parent/alerts?studentId=${studentId}&${suffix}`, undefined, { showLoading })
+export function apiGetStudentAlerts(studentId: string, _page: number = 1, _pageSize: number = 20, limit?: number, showLoading: boolean = true): Promise<ApiResponse<StudentAlertList> | null> {
+	return apiGetStudentLearningWarnings(studentId, showLoading, limit)
 }
diff --git a/components/qr-scanner.uvue b/components/qr-scanner.uvue
index 5d16463..9892ecd 100644
--- a/components/qr-scanner.uvue
+++ b/components/qr-scanner.uvue
@@ -16,11 +16,6 @@
 </template>
 
 <script setup lang="ts">
-	// #ifdef WEB
-	import { BrowserQRCodeReader } from '@zxing/browser'
-	import type { IScannerControls } from '@zxing/browser'
-	// #endif
-
 	type Props = {
 		cooldown?: number
 		active?: boolean
@@ -39,10 +34,10 @@
 	let lastScannedAt = 0
 	// #ifdef WEB
 	const videoContainerId = `qr-scanner-${Date.now()}`
-	let scannerControls: IScannerControls | null = null
 	let scanVideo: HTMLVideoElement | null = null
+	let scanStream: MediaStream | null = null
 	let isPageActive = false
-	let restartTimer: number | null = null
+	let scanTimer: number | null = null
 	// #endif
 
 	function emitScan(result: string) {
@@ -77,7 +72,7 @@
 	}
 
 	async function startWebScanner() {
-		if (!isPageActive || !props.active || scannerControls != null) return
+		if (!isPageActive || !props.active || scanStream != null) return
 		const video = getScanVideo()
 		if (video == null) {
 			handleCameraError()
@@ -85,39 +80,55 @@
 		}
 
 		try {
-			const reader = new BrowserQRCodeReader()
-			scannerControls = await reader.decodeFromConstraints(
-				{ video: { facingMode: 'environment' } },
-				video,
-				(result, _error, controls) => {
-					if (!result) return
-					controls.stop()
-					scannerControls = null
-					emitScan(result.getText())
-					scheduleRestart()
-				}
-			)
+			const BarcodeDetectorClass = (window as any).BarcodeDetector
+			if (BarcodeDetectorClass == null || navigator.mediaDevices == null) {
+				handleCameraError()
+				return
+			}
+
+			scanStream = await navigator.mediaDevices.getUserMedia({ video: { facingMode: 'environment' } })
+			video.srcObject = scanStream
+			await video.play()
+			const detector = new BarcodeDetectorClass({ formats: ['qr_code'] })
+			void scanWebFrame(detector)
 		} catch (_error) {
+			stopWebScanner()
 			handleCameraError()
 		}
 	}
 
-	function scheduleRestart() {
-		if (!isPageActive || !props.active || restartTimer != null) return
-		restartTimer = setTimeout(() => {
-			restartTimer = null
-			void startWebScanner()
-		}, props.cooldown)
+	async function scanWebFrame(detector: any) {
+		if (!isPageActive || !props.active || scanVideo == null || scanStream == null) return
+
+		try {
+			const results = await detector.detect(scanVideo)
+			if (results.length > 0) {
+				emitScan(results[0].rawValue as string)
+			}
+		} catch (_error) {
+			handleCameraError()
+			return
+		}
+
+		scanTimer = setTimeout(() => {
+			scanTimer = null
+			void scanWebFrame(detector)
+		}, 250)
 	}
 
 	function stopWebScanner() {
-		if (restartTimer != null) {
-			clearTimeout(restartTimer)
-			restartTimer = null
+		if (scanTimer != null) {
+			clearTimeout(scanTimer)
+			scanTimer = null
 		}
-		if (scannerControls != null) {
-			scannerControls.stop()
-			scannerControls = null
+		if (scanStream != null) {
+			scanStream.getTracks().forEach((track) => {
+				track.stop()
+			})
+			scanStream = null
+		}
+		if (scanVideo != null) {
+			scanVideo.srcObject = null
 		}
 	}
 
diff --git a/components/study-activity-chart.uvue b/components/study-activity-chart.uvue
index b4178d4..789f32d 100644
--- a/components/study-activity-chart.uvue
+++ b/components/study-activity-chart.uvue
@@ -1,5 +1,5 @@
 <template>
-	<view class="activity-chart"><view class="activity-scale"><text class="activity-scale-text">时长(分)</text><text class="activity-scale-text">200</text><text class="activity-scale-text">100</text><text class="activity-scale-text">0</text></view><view class="activity-columns"><view v-for="point in points" :key="point.label" class="activity-column"><view class="activity-bar-wrap"><view class="activity-grid-line activity-grid-line-top"></view><view class="activity-grid-line activity-grid-line-middle"></view><view class="activity-grid-line activity-grid-line-bottom"></view><view class="activity-planned-bar" :style="{ height: point.plannedHeight + 'px' }"></view><view class="activity-study-bar" :style="{ height: point.studyHeight + 'px' }"></view><view v-if="point.newMasteredCount > 0" class="activity-mastery-point" :style="{ bottom: point.newMasteredHeight + 'px' }"><text class="activity-mastery-count">{{ point.newMasteredCount }}</text></view></view><text class="activity-day">{{ point.label }}</text></view></view><view class="activity-mastery-scale"><text class="activity-mastery-scale-text">新增掌握(个)</text><text class="activity-mastery-scale-text">3 个</text><text class="activity-mastery-scale-text">2 个</text><text class="activity-mastery-scale-text">1 个</text><text class="activity-mastery-scale-text">0 个</text></view></view>
+	<view class="activity-chart"><view class="activity-scale"><text class="activity-scale-text">时长(分)</text><text class="activity-scale-text">200</text><text class="activity-scale-text">100</text><text class="activity-scale-text">0</text></view><view class="activity-columns"><view v-for="point in points" :key="point.label" class="activity-column"><view class="activity-bar-wrap"><view class="activity-grid-line activity-grid-line-top"></view><view class="activity-grid-line activity-grid-line-middle"></view><view class="activity-grid-line activity-grid-line-bottom"></view><view class="activity-planned-bar" :style="{ height: point.plannedHeight + 'px' }"></view><view class="activity-study-bar" :style="{ height: point.studyHeight + 'px' }"></view><view v-if="point.newMasteredCount > 0" class="activity-mastery-point" :style="{ bottom: point.newMasteredHeight + 'px' }"><text class="activity-mastery-count">{{ point.newMasteredCount }}</text></view></view><text class="activity-day">{{ point.label }}</text></view></view><view class="activity-mastery-scale"><text class="activity-mastery-scale-text">未攻克(分)</text><text class="activity-mastery-scale-text">90</text><text class="activity-mastery-scale-text">60</text><text class="activity-mastery-scale-text">30</text><text class="activity-mastery-scale-text">0</text></view></view>
 </template>
 
 <script setup lang="ts">
diff --git a/package-lock.json b/package-lock.json
index 5e38367..70b1de5 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -7,54 +7,7 @@
     "": {
       "name": "app.k12.parents",
       "version": "1.0.0",
-      "license": "ISC",
-      "dependencies": {
-        "@zxing/browser": "^0.2.1"
-      }
-    },
-    "node_modules/@zxing/browser": {
-      "version": "0.2.1",
-      "resolved": "https://registry.npmjs.org/@zxing/browser/-/browser-0.2.1.tgz",
-      "integrity": "sha512-92pVfVDUXbc15xu9vIEmhNyqIEASMEkDF92CwT6T+7sg2EHXJRktH9CQKoQSXe51UtbNsj+Fm09H/JBWHMs/Sw==",
-      "license": "MIT",
-      "optionalDependencies": {
-        "@zxing/text-encoding": "^0.9.0"
-      },
-      "peerDependencies": {
-        "@zxing/library": "^0.23.0"
-      }
-    },
-    "node_modules/@zxing/library": {
-      "version": "0.23.0",
-      "resolved": "https://registry.npmjs.org/@zxing/library/-/library-0.23.0.tgz",
-      "integrity": "sha512-6fkkoFwP8CHxl6ugnPsj74PLJgX2iRv5zczGAyt5OBzQgxFhuhF0NCEc4t4OvSr8xAv2MRLlI0Iu9ZGDZQ2urA==",
-      "license": "Apache-2.0",
-      "peer": true,
-      "dependencies": {
-        "ts-custom-error": "^3.3.1"
-      },
-      "engines": {
-        "node": ">= 24.0.0"
-      },
-      "optionalDependencies": {
-        "@zxing/text-encoding": "~0.9.0"
-      }
-    },
-    "node_modules/@zxing/text-encoding": {
-      "version": "0.9.0",
-      "resolved": "https://registry.npmjs.org/@zxing/text-encoding/-/text-encoding-0.9.0.tgz",
-      "integrity": "sha512-U/4aVJ2mxI0aDNI8Uq0wEhMgY+u4CNtEb0om3+y3+niDAsoTCOB33UF0sxpzqzdqXLqmvc+vZyAt4O8pPdfkwA==",
-      "license": "(Unlicense OR Apache-2.0)",
-      "optional": true
-    },
-    "node_modules/ts-custom-error": {
-      "version": "3.3.1",
-      "resolved": "https://registry.npmjs.org/ts-custom-error/-/ts-custom-error-3.3.1.tgz",
-      "integrity": "sha512-5OX1tzOjxWEgsr/YEUWSuPrQ00deKLh6D7OTWcvNHm12/7QPyRh8SYpyWvA4IZv8H/+GQWQEh/kwo95Q9OVW1A==",
-      "license": "MIT",
-      "engines": {
-        "node": ">=14.0.0"
-      }
+      "license": "ISC"
     }
   }
 }
diff --git a/package.json b/package.json
index ed16a6b..2a6a79b 100644
--- a/package.json
+++ b/package.json
@@ -11,7 +11,5 @@
   "author": "",
   "license": "ISC",
   "type": "commonjs",
-  "dependencies": {
-    "@zxing/browser": "^0.2.1"
-  }
+  "dependencies": {}
 }
diff --git a/pages/alerts/index.uvue b/pages/alerts/index.uvue
index d294c0c..42a4755 100644
--- a/pages/alerts/index.uvue
+++ b/pages/alerts/index.uvue
@@ -1,68 +1,195 @@
 <template>
 	<view class="page-container">
-		<view class="header-panel"><text class="header-title">预警信息</text><text class="header-subtitle">{{ studentName }}的学习动态</text></view>
+		<view class="header-panel">
+			<view class="back-button" @tap="goBack"><text class="back-icon">‹</text></view>
+			<view class="header-copy"><text class="header-title">学习预警</text><text class="header-subtitle">{{ studentName }}</text></view>
+			<view class="header-action" @tap="openStudentPicker"><UniIcons type="person-filled" class="header-action-icon"></UniIcons></view>
+		</view>
 		<scroll-view class="content-scroll" direction="vertical" scroll-y="true">
 			<view v-if="isLoading" class="status-panel"><text class="status-text">预警信息加载中</text></view>
 			<view v-else-if="alerts.length === 0" class="status-panel"><text class="status-text">暂无预警信息</text></view>
-			<view v-else v-for="alert in alerts" :key="alert.id" class="alert-card">
-				<view class="alert-card-top"><view class="alert-level-dot" :class="levelDotClass(alert.level)"></view><text class="alert-title">{{ alert.title }}</text><text v-if="!alert.isRead" class="unread-mark">未读</text></view>
-				<text class="alert-content">{{ alert.content }}</text>
-				<text class="alert-time">{{ formatTime(alert.occurredAt) }}</text>
+			<view v-else class="content-body">
+				<view class="summary-card">
+					<text class="summary-title">今日触发预警</text>
+					<view class="summary-count-row"><text class="summary-count">{{ triggeredCount }}</text><text class="summary-unit">条</text></view>
+					<text class="summary-desc">其中 {{ triggeredCount }} 条与作业截止相关，建议今晚提醒孩子提交。</text>
+				</view>
+				<view class="list-heading"><text class="list-title">全部预警规则</text><text class="list-total">共 {{ alerts.length }} 条</text></view>
+				<view v-for="alert in alerts" :key="alert.id" class="alert-card">
+					<view class="alert-card-top"><view class="alert-level-dot" :class="alert.isTriggered ? 'alert-level-triggered' : 'alert-level-normal'"></view><text class="alert-title">{{ alert.title }}</text><text class="alert-status" :class="alert.isTriggered ? 'alert-status-triggered' : 'alert-status-normal'">{{ alert.isTriggered ? '已触发' : '正常' }}</text></view>
+					<text class="alert-content">{{ alert.content }}</text>
+				</view>
 			</view>
 		</scroll-view>
+		<page-container :show="showStudentPicker" position="bottom" :round="true" :overlay="true" :close-on-slide-down="true" @beforeleave="closeStudentPicker">
+			<view class="student-picker-panel">
+				<view class="student-picker-header">
+					<text class="student-picker-title">切换孩子</text>
+					<text class="student-picker-subtitle">切换后将刷新当前孩子的预警规则</text>
+				</view>
+				<scroll-view class="student-picker-list" direction="vertical" scroll-y="true">
+					<view v-if="isStudentsLoading" class="student-picker-empty"><text class="student-picker-empty-text">学生信息加载中</text></view>
+					<view v-else-if="boundStudents.length === 0" class="student-picker-empty"><text class="student-picker-empty-text">暂无已绑定学生</text></view>
+					<view v-else v-for="(item, index) in boundStudents" :key="item.id" class="student-picker-item" :class="selectedStudentId === item.id ? 'student-picker-item-selected' : ''" @tap="selectStudent(item.id)">
+						<view class="student-picker-avatar" :class="studentPickerAvatarClass(index)"><image v-if="item.avatar" class="student-picker-avatar-image" :src="item.avatar" mode="aspectFill"></image><text v-else class="student-picker-avatar-text">{{ studentPickerInitial(item.name) }}</text></view>
+						<view class="student-picker-info"><view class="student-picker-name-row"><text class="student-picker-name">{{ item.name }}</text><text class="student-picker-grade">{{ item.school }} {{ item.className }}</text></view><text class="student-picker-detail">账号：{{ item.account }}</text></view>
+						<text class="student-picker-action" :class="selectedStudentId === item.id ? 'student-picker-action-selected' : ''">{{ selectedStudentId === item.id ? '当前查看' : '切换' }}</text>
+					</view>
+				</scroll-view>
+				<view class="student-picker-footer"><view class="student-picker-cancel" @tap="closeStudentPicker"><text class="student-picker-cancel-text">取消</text></view><view class="student-picker-confirm" @tap="confirmStudent"><text class="student-picker-confirm-text">确定</text></view></view>
+			</view>
+		</page-container>
 	</view>
 </template>
 
 <script setup lang="ts">
-	import { apiGetStudentAlerts, type StudentAlert, type StudentAlertLevel } from '../../api/student'
-	import { homeStudentProfile } from '../../store/home'
+	import UniIcons from '../../uni_modules/uni-icons-x/components/uni-icons/uni-icons.uvue'
+	import { apiGetBoundStudents, apiGetStudentLearningWarnings, type BoundStudentSummary, type StudentAlert } from '../../api/student'
+	import { homeStudentProfile, selectedStudentChangeVersion, switchBoundStudent } from '../../store/home'
 
 	const alerts = ref<StudentAlert[]>([])
 	const isLoading = ref(true)
+	const isStudentsLoading = ref(false)
+	const showStudentPicker = ref(false)
+	const boundStudents = ref<BoundStudentSummary[]>([])
+	const selectedStudentId = ref('')
+	const observedStudentVersion = ref(selectedStudentChangeVersion.value)
 	const studentName = computed((): string => homeStudentProfile.value?.name ?? '孩子')
+	const triggeredCount = computed((): number => alerts.value.filter((item: StudentAlert) => item.isTriggered).length)
 
 	onLoad(() => {
 		loadAlerts()
 	})
 
+	onShow(() => {
+		if (observedStudentVersion.value !== selectedStudentChangeVersion.value) {
+			observedStudentVersion.value = selectedStudentChangeVersion.value
+			loadAlerts()
+		}
+	})
+
 	async function loadAlerts() {
+		isLoading.value = true
 		const studentId = homeStudentProfile.value?.id ?? ''
 		if (!studentId) {
 			isLoading.value = false
 			return
 		}
-		const res = await apiGetStudentAlerts(studentId, 1, 20)
+		const res = await apiGetStudentLearningWarnings(studentId)
 		if (res && res.data) {
 			alerts.value = res.data.list
 		}
 		isLoading.value = false
 	}
 
-	function levelDotClass(level: StudentAlertLevel): string {
-		return level === 'low' ? 'alert-level-low' : level === 'medium' ? 'alert-level-medium' : 'alert-level-high'
+	function goBack() {
+		uni.navigateBack()
 	}
 
-	function formatTime(value: string): string {
-		return value.length > 0 ? value.substring(5, 16).replace('T', ' ') : ''
+	async function openStudentPicker() {
+		showStudentPicker.value = true
+		selectedStudentId.value = homeStudentProfile.value?.id ?? ''
+		isStudentsLoading.value = true
+		const res = await apiGetBoundStudents()
+		if (res && res.data) {
+			boundStudents.value = res.data.students
+			if (!selectedStudentId.value && res.data.currentStudentId) selectedStudentId.value = res.data.currentStudentId
+		}
+		isStudentsLoading.value = false
+	}
+
+	function closeStudentPicker() {
+		showStudentPicker.value = false
+	}
+
+	function selectStudent(studentId: string) {
+		selectedStudentId.value = studentId
+	}
+
+	async function confirmStudent() {
+		if (!selectedStudentId.value) {
+			uni.showToast({ title: '请选择学生', icon: 'none' })
+			return
+		}
+		const selectedStudent = boundStudents.value.find((item) => item.id === selectedStudentId.value)
+		if (selectedStudent) {
+			switchBoundStudent(selectedStudent)
+			observedStudentVersion.value = selectedStudentChangeVersion.value
+		}
+		closeStudentPicker()
+		await loadAlerts()
+	}
+
+	function studentPickerInitial(name: string): string {
+		return name.length > 1 ? name.substring(1, 2) : name.substring(0, 1)
+	}
+
+	function studentPickerAvatarClass(index: number): string {
+		if (index === 0) return 'student-picker-avatar-0'
+		if (index === 1) return 'student-picker-avatar-1'
+		return 'student-picker-avatar-2'
 	}
 </script>
 
 <style>
-	.page-container { display: flex; flex-direction: column; flex: 1; background-color: #f5f7fb; }
-	.header-panel { display: flex; flex-direction: column; padding: 18px 20px; background-color: #5d3de8; }
-	.header-title { font-size: 21px; font-weight: 700; color: #ffffff; }
-	.header-subtitle { margin-top: 6px; font-size: 13px; color: #e5ddff; }
-	.content-scroll { flex: 1; padding: 16px 20px; }
+	.page-container { display: flex; flex-direction: column; flex: 1; background-color: #f6f7fb; }
+	.header-panel { display: flex; flex-direction: row; align-items: center; padding: 6px 4px 8px; background-color: #ffffff; }
+	.back-button { display: flex; flex-direction: column; align-items: center; justify-content: center; width: 36px; height: 36px; border-radius: 18px; background-color: #eef2f7; }
+	.back-icon { font-size: 30px; line-height: 32px; color: #415066; }
+	.header-copy { display: flex; flex-direction: column; flex: 1; margin-left: 7px; }
+	.header-title { font-size: 15px; font-weight: 700; color: #111827; }
+	.header-subtitle { margin-top: 4px; font-size: 11px; color: #7c8aa0; }
+	.header-action { display: flex; flex-direction: column; align-items: center; justify-content: center; width: 36px; height: 36px; margin-right: 4px; border-radius: 18px; background-color: #edf1ff; }
+	.header-action-icon { font-size: 18px; color: #5947ea; }
+	.content-scroll { flex: 1; padding: 14px 4px 8px; }
+	.content-body { display: flex; flex-direction: column; }
 	.status-panel { display: flex; flex-direction: column; align-items: center; justify-content: center; height: 160px; }
 	.status-text { font-size: 14px; color: #8992a5; }
-	.alert-card { display: flex; flex-direction: column; margin-bottom: 12px; padding: 16px; border-radius: 14px; background-color: #ffffff; }
+	.summary-card { display: flex; flex-direction: column; padding: 15px 16px 16px; margin-bottom: 14px; border-radius: 12px; background-color: #683dec; }
+	.summary-title { font-size: 12px; font-weight: 600; color: #ffffff; }
+	.summary-count-row { display: flex; flex-direction: row; align-items: flex-end; margin-top: 9px; }
+	.summary-count { font-size: 26px; line-height: 30px; font-weight: 800; color: #ffffff; }
+	.summary-unit { margin-left: 6px; margin-bottom: 3px; font-size: 13px; font-weight: 600; color: #ffffff; }
+	.summary-desc { margin-top: 10px; font-size: 12px; line-height: 18px; color: #ffffff; }
+	.list-heading { display: flex; flex-direction: row; align-items: center; justify-content: space-between; margin-bottom: 9px; }
+	.list-title { font-size: 15px; font-weight: 700; color: #121826; }
+	.list-total { font-size: 12px; color: #7e8ba0; }
+	.alert-card { display: flex; flex-direction: column; margin-bottom: 10px; padding: 15px 14px; border-radius: 13px; background-color: #ffffff; border: 1px solid #edf0f5; }
 	.alert-card-top { display: flex; flex-direction: row; align-items: center; }
-	.alert-level-dot { width: 9px; height: 9px; margin-right: 8px; border-radius: 5px; }
-	.alert-level-high { background-color: #e25a5a; }
-	.alert-level-medium { background-color: #e8a129; }
-	.alert-level-low { background-color: #4d87cf; }
-	.alert-title { flex: 1; font-size: 15px; font-weight: 700; color: #30384a; }
-	.unread-mark { padding: 3px 7px; border-radius: 8px; font-size: 10px; color: #554be9; background-color: #eeefff; }
-	.alert-content { margin-top: 10px; font-size: 13px; line-height: 20px; color: #626c7e; }
-	.alert-time { margin-top: 10px; font-size: 11px; color: #9aa2b1; }
+	.alert-level-dot { width: 7px; height: 7px; margin-right: 11px; border-radius: 4px; }
+	.alert-level-triggered { background-color: #ff3f6b; }
+	.alert-level-normal { background-color: #d2dce8; }
+	.alert-title { flex: 1; font-size: 14px; font-weight: 700; color: #1f2a3d; }
+	.alert-status { padding: 4px 8px; border-radius: 12px; font-size: 10px; }
+	.alert-status-triggered { color: #ff3f6b; background-color: #fff0f4; }
+	.alert-status-normal { color: #00a86b; background-color: #eafaf3; }
+	.alert-content { margin-top: 10px; margin-left: 18px; font-size: 12px; line-height: 19px; color: #536278; }
+	.student-picker-panel { display: flex; flex-direction: column; background-color: #ffffff; }
+	.student-picker-header { display: flex; flex-direction: column; padding: 18px 20px 12px; }
+	.student-picker-title { font-size: 18px; font-weight: 700; color: #242b3d; }
+	.student-picker-subtitle { margin-top: 5px; font-size: 12px; color: #8992a5; }
+	.student-picker-list { max-height: 340px; padding: 0 20px; }
+	.student-picker-empty { display: flex; flex-direction: column; align-items: center; justify-content: center; height: 150px; }
+	.student-picker-empty-text { font-size: 13px; color: #8992a5; }
+	.student-picker-item { display: flex; flex-direction: row; align-items: center; padding: 10px; margin-bottom: 10px; border: 1px solid #edf0f5; border-radius: 15px; background-color: #ffffff; }
+	.student-picker-item-selected { background-color: #f0efff; }
+	.student-picker-avatar { display: flex; flex-direction: column; align-items: center; justify-content: center; width: 46px; height: 46px; border-radius: 14px; background-color: #7161ed; }
+	.student-picker-avatar-0 { background-color: #6558e9; }
+	.student-picker-avatar-1 { background-color: #12a9df; }
+	.student-picker-avatar-2 { background-color: #e63a9c; }
+	.student-picker-avatar-image { width: 46px; height: 46px; border-radius: 14px; }
+	.student-picker-avatar-text { font-size: 18px; font-weight: 700; color: #ffffff; }
+	.student-picker-info { display: flex; flex-direction: column; flex: 1; margin-left: 11px; }
+	.student-picker-name-row { display: flex; flex-direction: row; align-items: center; margin-bottom: 5px; }
+	.student-picker-name { margin-right: 8px; font-size: 15px; font-weight: 700; color: #2a3042; }
+	.student-picker-grade { padding: 2px 6px; border-radius: 7px; font-size: 10px; color: #554be9; background-color: #e8e7ff; }
+	.student-picker-detail { margin-top: 2px; font-size: 11px; color: #7e8799; }
+	.student-picker-action { flex-shrink: 0; padding: 5px 8px; border-radius: 10px; font-size: 9px; color: #6e7c91; background-color: #f1f4f8; }
+	.student-picker-action-selected { color: #ffffff; background-color: #554be9; }
+	.student-picker-footer { display: flex; flex-direction: row; padding: 12px 20px 24px; border-top: 1px solid #edf0f5; }
+	.student-picker-cancel, .student-picker-confirm { display: flex; flex-direction: column; align-items: center; justify-content: center; flex: 1; height: 44px; border-radius: 11px; }
+	.student-picker-cancel { margin-right: 10px; background-color: #f0f2f7; }
+	.student-picker-confirm { background-color: #554be9; }
+	.student-picker-cancel-text { font-size: 15px; color: #596275; }
+	.student-picker-confirm-text { font-size: 15px; color: #ffffff; }
 </style>
diff --git a/pages/growth/index.uvue b/pages/growth/index.uvue
index 11521b7..3ccfbb8 100644
--- a/pages/growth/index.uvue
+++ b/pages/growth/index.uvue
@@ -8,14 +8,23 @@
 <script setup lang="ts">
 	import UniIcons from '../../uni_modules/uni-icons-x/components/uni-icons/uni-icons.uvue'
 	import { apiGetStudentGrowth, apiGetStudentHomeProfile, type StudentGrowth } from '../../api/student'
-		import { homeStudentProfile, setHomeStudentProfile } from '../../store/home'
+	import { homeStudentProfile, selectedStudentChangeVersion, setHomeStudentProfile } from '../../store/home'
 
 	const growth = ref<StudentGrowth>({ studentId: '', studentName: '', studentGrade: '', studentClass: '', pointsBalance: 0, level: 0, rank: 0, streakDays: 0, totalPoints: 0, records: [] })
 	const isLoading = ref(true)
+	const observedStudentVersion = ref(selectedStudentChangeVersion.value)
 
 	onLoad(() => { loadGrowth() })
 
+	onShow(() => {
+		if (observedStudentVersion.value !== selectedStudentChangeVersion.value) {
+			observedStudentVersion.value = selectedStudentChangeVersion.value
+			loadGrowth()
+		}
+	})
+
 	async function loadGrowth() {
+		isLoading.value = true
 		let studentId = homeStudentProfile.value?.id ?? ''
 		if (!studentId) {
 			const profileRes = await apiGetStudentHomeProfile(undefined, false)
diff --git a/pages/index/index.uvue b/pages/index/index.uvue
index 57bbdbd..290444e 100644
--- a/pages/index/index.uvue
+++ b/pages/index/index.uvue
@@ -61,8 +61,8 @@
 						<text class="metric-value metric-blue">{{ metrics.learningDaysThisWeek }}/{{ metrics.shouldStudyDaysThisWeek }} 天</text>
 					</view>
 					<view class="metric-item">
-						<text class="metric-label">待完成作业</text>
-						<text class="metric-value metric-orange">{{ metrics.pendingHomeworkCount }} 个</text>
+						<text class="metric-label">待完成学习包</text>
+						<text class="metric-value metric-orange">{{ metrics.pendingPackCount }} 个</text>
 					</view>
 				</view>
 			</view>
@@ -100,10 +100,10 @@
 				<scroll-view class="student-picker-list" direction="vertical" scroll-y="true">
 					<view v-if="isStudentsLoading" class="student-picker-empty"><text class="student-picker-empty-text">学生信息加载中</text></view>
 					<view v-else-if="boundStudents.length === 0" class="student-picker-empty"><text class="student-picker-empty-text">暂无已绑定学生</text></view>
-					<view v-else v-for="item in boundStudents" :key="item.id" class="student-picker-item" :class="selectedStudentId === item.id ? 'student-picker-item-selected' : ''" @tap="selectStudent(item.id)">
-						<view class="student-picker-avatar"><image v-if="item.avatar" class="student-picker-avatar-image" :src="item.avatar" mode="aspectFill"></image><text v-else class="student-picker-avatar-text">{{ item.name.substring(0, 1) }}</text></view>
-						<view class="student-picker-info"><view class="student-picker-name-row"><text class="student-picker-name">{{ item.name }}</text><text class="student-picker-grade">{{ item.school }} {{ item.className }}</text></view><text class="student-picker-detail">账号：{{ item.account }}</text></view>
-						<view v-if="selectedStudentId === item.id" class="student-picker-check"><text class="student-picker-check-text">已选</text></view>
+					<view v-else v-for="(item, index) in boundStudents" :key="item.id" class="student-picker-item" :class="selectedStudentId === item.id ? 'student-picker-item-selected' : ''" @tap="selectStudent(item.id)">
+						<view class="student-picker-avatar" :class="studentPickerAvatarClass(index)"><image v-if="item.avatar" class="student-picker-avatar-image" :src="item.avatar" mode="aspectFill"></image><text v-else class="student-picker-avatar-text">{{ studentPickerInitial(item.name) }}</text></view>
+						<view class="student-picker-info"><view class="student-picker-name-row"><text class="student-picker-name">{{ item.name }}</text><text class="student-picker-role">{{ studentPickerRole(index) }}</text><text class="student-picker-status">{{ studentPickerStatus(index) }}</text></view><text class="student-picker-detail">{{ item.school }} · {{ item.className }}</text></view>
+						<text class="student-picker-action" :class="selectedStudentId === item.id ? 'student-picker-action-selected' : ''">{{ selectedStudentId === item.id ? '当前查看' : '切换' }}</text>
 					</view>
 				</scroll-view>
 				<view class="student-picker-footer"><view class="student-picker-cancel" @tap="closeStudentPicker"><text class="student-picker-cancel-text">取消</text></view><view class="student-picker-confirm" @tap="confirmStudent"><text class="student-picker-confirm-text">确定</text></view></view>
@@ -116,7 +116,7 @@
 	import MainTabBar from '../../components/main-tab-bar.uvue'
 	import UniIcons from '../../uni_modules/uni-icons-x/components/uni-icons/uni-icons.uvue'
 	import { apiGetBoundStudents, apiGetStudentHomeMetrics, apiGetStudentLearningWarnings, type BoundStudentSummary, type StudentAlert, type StudentAlertLevel, type StudentHomeMetrics, type StudentHomeProfile } from '../../api/student'
-	import { applyBoundStudent, getSavedSelectedStudent, homeStudentAlerts, homeStudentMetrics, homeStudentProfile, saveSelectedStudent, setHomeStudentAlerts, setHomeStudentMetrics } from '../../store/home'
+	import { applyBoundStudent, getSavedSelectedStudent, homeStudentAlerts, homeStudentMetrics, homeStudentProfile, saveSelectedStudent, selectedStudentChangeVersion, setHomeStudentAlerts, setHomeStudentMetrics, switchBoundStudent } from '../../store/home'
 	import type { UserInfo } from '../../api/auth'
 
 	const loadingStudent = ref<StudentHomeProfile>({
@@ -134,10 +134,11 @@
 	const isStudentsLoading = ref(false)
 	const boundStudents = ref<BoundStudentSummary[]>([])
 	const selectedStudentId = ref('')
+	const observedStudentVersion = ref(selectedStudentChangeVersion.value)
 	const student = computed((): StudentHomeProfile => homeStudentProfile.value ?? loadingStudent.value)
 	const metrics = computed((): StudentHomeMetrics => homeStudentMetrics.value ?? {
 		studentId: '', onlineToday: false, checkedInToday: false, learningMinutesToday: 0,
-		accuracyToday: null, learningDaysThisWeek: 0, shouldStudyDaysThisWeek: 0, pendingHomeworkCount: 0, updatedAt: ''
+		accuracyToday: null, learningDaysThisWeek: 0, shouldStudyDaysThisWeek: 0, pendingPackCount: 0, updatedAt: ''
 	})
 	const alerts = computed((): StudentAlert[] => homeStudentAlerts.value ?? [])
 	const parentName = computed((): string => {
@@ -174,6 +175,24 @@
 		loadHomeData()
 	})
 
+	onShow(() => {
+		syncSelectedStudentFromStorage()
+	})
+
+	async function syncSelectedStudentFromStorage() {
+		const savedStudent = getSavedSelectedStudent()
+		if (savedStudent && savedStudent.id !== homeStudentProfile.value?.id) {
+			applyBoundStudent(savedStudent)
+			observedStudentVersion.value = selectedStudentChangeVersion.value
+			await loadHomeData(savedStudent.id, false)
+			return
+		}
+		if (observedStudentVersion.value !== selectedStudentChangeVersion.value) {
+			observedStudentVersion.value = selectedStudentChangeVersion.value
+			await loadHomeData(homeStudentProfile.value?.id ?? '', false)
+		}
+	}
+
 	async function loadStudentHomeMetrics(studentId: string, showLoading: boolean = true) {
 		const res = await apiGetStudentHomeMetrics(studentId, showLoading)
 		if (res && res.data) {
@@ -182,7 +201,7 @@
 	}
 
 	async function loadStudentAlerts(studentId: string, showLoading: boolean = true) {
-		const res = await apiGetStudentLearningWarnings(studentId, showLoading)
+		const res = await apiGetStudentLearningWarnings(studentId, showLoading, 3)
 		if (res && res.data) {
 			setHomeStudentAlerts(res.data.list)
 		}
@@ -227,7 +246,6 @@
 	async function openStudentPicker() {
 		showStudentPicker.value = true
 		selectedStudentId.value = student.value.id
-		if (boundStudents.value.length > 0) return
 		isStudentsLoading.value = true
 		const res = await apiGetBoundStudents()
 		if (res && res.data) {
@@ -243,6 +261,26 @@
 		selectedStudentId.value = studentId
 	}
 
+	function studentPickerInitial(name: string): string {
+		return name.length > 1 ? name.substring(1, 2) : name.substring(0, 1)
+	}
+
+	function studentPickerAvatarClass(index: number): string {
+		if (index === 0) return 'student-picker-avatar-0'
+		if (index === 1) return 'student-picker-avatar-1'
+		return 'student-picker-avatar-2'
+	}
+
+	function studentPickerRole(index: number): string {
+		if (index === 0) return '儿子'
+		if (index === 1) return '侄子'
+		return '女儿'
+	}
+
+	function studentPickerStatus(index: number): string {
+		return index === 1 ? '中上' : '优秀'
+	}
+
 	function alertLevelClass(level: StudentAlertLevel): string {
 		return level === 'low' ? 'reminder-blue' : level === 'medium' ? 'reminder-yellow' : 'reminder-red'
 	}
@@ -279,11 +317,9 @@
 		closeStudentPicker()
 		const selectedStudent = boundStudents.value.find((item) => item.id === selectedStudentId.value)
 		if (selectedStudent) {
-			saveSelectedStudent(selectedStudent)
-			applyBoundStudent(selectedStudent)
-		}
-		if (selectedStudentId.value !== student.value.id) {
-			await loadHomeData(selectedStudentId.value)
+			switchBoundStudent(selectedStudent)
+			observedStudentVersion.value = selectedStudentChangeVersion.value
+			await loadHomeData(selectedStudent.id)
 		}
 	}
 </script>
@@ -412,18 +448,25 @@
 	.student-picker-list { max-height: 340px; padding: 0 20px; }
 	.student-picker-empty { display: flex; flex-direction: column; align-items: center; justify-content: center; height: 150px; }
 	.student-picker-empty-text { font-size: 13px; color: #8992a5; }
-	.student-picker-item { display: flex; flex-direction: row; align-items: center; padding: 14px 12px; margin-bottom: 10px; border-radius: 13px; background-color: #f7f9fc; }
+	.student-picker-item { display: flex; flex-direction: row; align-items: center; padding: 10px; margin-bottom: 10px; border: 1px solid #edf0f5; border-radius: 15px; background-color: #ffffff; }
 	.student-picker-item-selected { background-color: #f0efff; }
 	.student-picker-avatar { display: flex; flex-direction: column; align-items: center; justify-content: center; width: 46px; height: 46px; border-radius: 14px; background-color: #7161ed; }
+	.student-picker-avatar-0 { background-color: #6558e9; }
+	.student-picker-avatar-1 { background-color: #12a9df; }
+	.student-picker-avatar-2 { background-color: #e63a9c; }
 	.student-picker-avatar-image { width: 46px; height: 46px; border-radius: 14px; }
 	.student-picker-avatar-text { font-size: 18px; font-weight: 700; color: #ffffff; }
 	.student-picker-info { display: flex; flex-direction: column; flex: 1; margin-left: 11px; }
 	.student-picker-name-row { display: flex; flex-direction: row; align-items: center; margin-bottom: 5px; }
 	.student-picker-name { margin-right: 8px; font-size: 15px; font-weight: 700; color: #2a3042; }
 	.student-picker-grade { padding: 2px 6px; border-radius: 7px; font-size: 10px; color: #554be9; background-color: #e8e7ff; }
+	.student-picker-role { margin-left: 7px; padding: 2px 6px; border-radius: 8px; font-size: 9px; color: #7c8ba1; background-color: #f1f4f8; }
+	.student-picker-status { margin-left: 7px; padding: 2px 6px; border-radius: 8px; font-size: 9px; color: #16a979; background-color: #e7faf2; }
 	.student-picker-detail { margin-top: 2px; font-size: 11px; color: #7e8799; }
 	.student-picker-check { padding: 4px 7px; border-radius: 9px; background-color: #554be9; }
 	.student-picker-check-text { font-size: 10px; color: #ffffff; }
+	.student-picker-action { flex-shrink: 0; padding: 5px 8px; border-radius: 10px; font-size: 9px; color: #6e7c91; background-color: #f1f4f8; }
+	.student-picker-action-selected { color: #ffffff; background-color: #554be9; }
 	.student-picker-footer { display: flex; flex-direction: row; padding: 12px 20px calc(12px + var(--uni-safe-area-inset-bottom)); border-top: 1px solid #edf0f5; }
 	.student-picker-cancel, .student-picker-confirm { display: flex; flex-direction: column; align-items: center; justify-content: center; flex: 1; height: 44px; border-radius: 11px; }
 	.student-picker-cancel { margin-right: 10px; background-color: #f0f2f7; }
diff --git a/pages/login/index.uvue b/pages/login/index.uvue
index 28b0c00..1c6aeef 100644
--- a/pages/login/index.uvue
+++ b/pages/login/index.uvue
@@ -68,7 +68,7 @@
 	import { apiLogin } from '../../api/auth'
 	import { apiGetBoundStudents, type BoundStudentSummary } from '../../api/student'
 	import { setUserInfo, saveRememberInfo, getRememberInfo } from '../../store/user'
-	import { applyBoundStudent, saveSelectedStudent } from '../../store/home'
+	import { switchBoundStudent } from '../../store/home'
 
 	type LoginForm = {
 		phone: string
@@ -144,8 +144,7 @@
 			? res.data.students.find((item) => item.id === savedStudent.id)!
 			: res.data.students[0]
 
-		saveSelectedStudent(selectedStudent)
-		applyBoundStudent(selectedStudent)
+		switchBoundStudent(selectedStudent)
 	}
 
 	/**
diff --git a/pages/profile/index.uvue b/pages/profile/index.uvue
index a0af78c..6cab88a 100644
--- a/pages/profile/index.uvue
+++ b/pages/profile/index.uvue
@@ -62,7 +62,7 @@
 <script setup lang="ts">
 	import MainTabBar from '../../components/main-tab-bar.uvue'
 	import { apiGetBoundStudents, type BoundStudentSummary } from '../../api/student'
-	import { applyBoundStudent, homeStudentProfile, saveSelectedStudent } from '../../store/home'
+	import { homeStudentProfile, selectedStudentChangeVersion, switchBoundStudent } from '../../store/home'
 	import type { UserInfo } from '../../api/auth'
 	import { clearUserInfo } from '../../store/user'
 
@@ -72,9 +72,17 @@
 	const selectedStudentId = ref(homeStudentProfile.value?.id ?? '')
 	const isLoading = ref(true)
 	const listFailed = ref(false)
+	const observedStudentVersion = ref(selectedStudentChangeVersion.value)
 
 	onLoad(() => { loadStudents() })
 
+	onShow(() => {
+		if (observedStudentVersion.value !== selectedStudentChangeVersion.value) {
+			observedStudentVersion.value = selectedStudentChangeVersion.value
+			selectedStudentId.value = homeStudentProfile.value?.id ?? selectedStudentId.value
+		}
+	})
+
 	async function loadStudents() {
 		isLoading.value = true
 		listFailed.value = false
@@ -92,8 +100,8 @@
 		selectedStudentId.value = studentId
 		const student = students.value.find((item) => item.id === studentId)
 		if (student) {
-			saveSelectedStudent(student)
-			applyBoundStudent(student)
+			switchBoundStudent(student)
+			observedStudentVersion.value = selectedStudentChangeVersion.value
 		}
 	}
 
diff --git a/pages/study/index.uvue b/pages/study/index.uvue
index 14bddce..7c98a68 100644
--- a/pages/study/index.uvue
+++ b/pages/study/index.uvue
@@ -2,7 +2,7 @@
 	<view class="page-container">
 		<view class="header-panel">
 			<view class="header-copy"><text class="header-title">学情报告</text><text class="header-subtitle">{{ homeStudentProfile?.name ?? report.studentName }} · {{ homeStudentProfile?.school ?? '' }} {{ homeStudentProfile?.className ?? report.studentClass }}</text></view>
-			<view class="header-action"><UniIcons type="person-filled" class="header-action-icon"></UniIcons></view>
+			<view class="header-action" @tap="openStudentPicker"><UniIcons type="person-filled" class="header-action-icon"></UniIcons></view>
 		</view>
 		<view class="report-meta"><text class="report-meta-text">{{ activeReport.rangeText }} · 数据更新到 {{ report.updatedAtText }}</text></view>
 
@@ -14,16 +14,38 @@
 					<scroll-view class="subject-scroll" direction="horizontal" scroll-x="true"><view class="subject-tabs"><view v-for="subject in report.subjects" :key="subject.id" class="subject-tab" :class="activeSubjectId === subject.id ? 'subject-tab-active' : ''" @tap="setSubject(subject.id)"><text class="subject-tab-text" :class="activeSubjectId === subject.id ? 'subject-tab-text-active' : ''">{{ subject.name }}</text></view></view></scroll-view>
 				</view>
 
-				<view class="summary-card"><text class="summary-title">{{ activeReport.statusTitle }}</text><text class="summary-description">{{ activeReport.statusDescription }}</text><view class="summary-stats"><view class="summary-stat"><text class="summary-value">{{ activeReport.newMasteredPoints }} 个</text><text class="summary-label">新攻克知识点</text></view><view class="summary-stat summary-stat-middle"><text class="summary-value">{{ activeReport.consecutiveDays }} 天</text><text class="summary-label">连续学习</text></view><view class="summary-stat"><text class="summary-value">{{ activeReport.averageAccuracy }}%</text><text class="summary-label">平均正确率</text></view></view></view>
+				<view v-if="!activeHasReport" class="empty-report-card"><text class="empty-report-title">暂无{{ reportPeriodLabel }}报告</text><text class="empty-report-text">当前周期还没有生成学情报告，生成后会在这里展示学习时长、知识点攻克和正确率数据。</text></view>
+				<view v-else class="report-content">
+				<view class="summary-card"><text class="summary-title">{{ activeReport.statusTitle }}</text><text class="summary-description">{{ activeReport.statusDescription }}</text><view class="summary-stats"><view class="summary-stat"><text class="summary-value">{{ activeReport.newMasteredPoints }} 个</text><text class="summary-label">攻克知识点</text></view><view class="summary-stat summary-stat-middle"><text class="summary-value">{{ activeReport.consecutiveDays }} 天</text><text class="summary-label">连续学习</text></view><view class="summary-stat"><text class="summary-value">{{ activeReport.averageAccuracy }}%</text><text class="summary-label">平均正确率</text></view></view></view>
 
-				<view class="trend-card"><text class="section-title">已掌握知识点成长曲线</text><view class="trend-legend"><view class="legend-item"><view class="legend-mark legend-mark-student"></view><text class="legend-text">本学生</text></view><view class="legend-item"><view class="legend-mark legend-mark-average"></view><text class="legend-text">班级平均</text></view></view><StudyTrendChart :scale-labels="activeReport.scaleLabels" :points="activeTrend"></StudyTrendChart></view>
+				<view class="trend-card"><text class="section-title">学习时长趋势</text><view class="trend-legend"><view class="legend-item"><view class="legend-mark legend-mark-student"></view><text class="legend-text">总学习时长</text></view><view class="legend-item"><view class="legend-mark legend-mark-average"></view><text class="legend-text">攻克成功时长</text></view></view><StudyTrendChart :scale-labels="activeReport.scaleLabels" :points="activeTrend"></StudyTrendChart></view>
 
-				<view class="activity-card"><text class="section-title">{{ reportPeriodLabel }}学习活跃度与效率</text><text class="activity-summary">{{ activeReport.activity.summary }}</text><text class="activity-total">学习 {{ activeReport.activity.activeDays }} 天，累计 {{ activeReport.activity.totalDurationText }}</text><StudyActivityChart :points="activeReport.activity.points"></StudyActivityChart><view class="activity-legend"><view class="legend-item activity-legend-item"><view class="legend-mark legend-mark-student"></view><text class="legend-text">高质量（有产出）</text></view><view class="legend-item activity-legend-item"><view class="legend-mark legend-mark-plan"></view><text class="legend-text">普通学习（无新产出）</text></view><view class="legend-item activity-legend-item"><view class="legend-mark legend-mark-mastery"></view><text class="legend-text">新增掌握</text></view></view></view>
+				<view class="activity-card"><text class="section-title">{{ reportPeriodLabel }}学习时长明细</text><text class="activity-summary">{{ activeReport.activity.summary }}</text><text class="activity-total">连续学习 {{ activeReport.activity.activeDays }} 天，累计 {{ activeReport.activity.totalDurationText }}</text><StudyActivityChart :points="activeReport.activity.points"></StudyActivityChart><view class="activity-legend"><view class="legend-item activity-legend-item"><view class="legend-mark legend-mark-student"></view><text class="legend-text">总学习时长</text></view><view class="legend-item activity-legend-item"><view class="legend-mark legend-mark-plan"></view><text class="legend-text">攻克成功时长</text></view><view class="legend-item activity-legend-item"><view class="legend-mark legend-mark-mastery"></view><text class="legend-text">未攻克时长</text></view></view></view>
 
-				<view v-if="activeSubjectId === 'all'" class="mastery-card"><text class="section-title">各科知识点掌握情况</text><view v-for="mastery in activeReport.subjectMasteries" :key="mastery.subjectName" class="mastery-item"><view class="mastery-heading"><text class="mastery-subject">{{ mastery.subjectName }}</text><text class="mastery-value">{{ mastery.masteredCount }} / {{ mastery.totalCount }}</text></view><view class="mastery-track"><view class="mastery-progress" :style="{ width: mastery.masteredPercent + '%' }"></view><view class="mastery-remaining"></view></view></view><view class="mastery-legend"><view class="mastery-legend-item"><view class="mastery-legend-color mastery-legend-mastered"></view><text class="mastery-legend-text">已掌握</text></view><view class="mastery-legend-item"><view class="mastery-legend-color mastery-legend-unmastered"></view><text class="mastery-legend-text">未掌握</text></view></view></view>
+				<view v-if="activeSubjectId === '0'" class="mastery-card"><text class="section-title">各科知识点攻克情况</text><view v-for="mastery in activeReport.subjectMasteries" :key="mastery.subjectName" class="mastery-item"><view class="mastery-heading"><text class="mastery-subject">{{ mastery.subjectName }}</text><text class="mastery-value">{{ mastery.masteredCount }} / {{ mastery.totalCount }}</text></view><view class="mastery-track"><view class="mastery-progress" :style="{ width: mastery.masteredPercent + '%' }"></view><view class="mastery-remaining"></view></view></view><view class="mastery-legend"><view class="mastery-legend-item"><view class="mastery-legend-color mastery-legend-mastered"></view><text class="mastery-legend-text">已攻克</text></view><view class="mastery-legend-item"><view class="mastery-legend-color mastery-legend-unmastered"></view><text class="mastery-legend-text">未攻克</text></view></view></view>
+				</view>
 			</view>
 		</scroll-view>
 		<MainTabBar active-tab="study"></MainTabBar>
+
+		<page-container :show="showStudentPicker" position="bottom" :round="true" :overlay="true" :close-on-slide-down="true" @beforeleave="closeStudentPicker">
+			<view class="student-picker-panel">
+				<view class="student-picker-header">
+					<text class="student-picker-title">切换孩子</text>
+					<text class="student-picker-subtitle">切换后将刷新当前孩子的学情报告</text>
+				</view>
+				<scroll-view class="student-picker-list" direction="vertical" scroll-y="true">
+					<view v-if="isStudentsLoading" class="student-picker-empty"><text class="student-picker-empty-text">学生信息加载中</text></view>
+					<view v-else-if="boundStudents.length === 0" class="student-picker-empty"><text class="student-picker-empty-text">暂无已绑定学生</text></view>
+					<view v-else v-for="(item, index) in boundStudents" :key="item.id" class="student-picker-item" :class="selectedStudentId === item.id ? 'student-picker-item-selected' : ''" @tap="selectStudent(item.id)">
+						<view class="student-picker-avatar" :class="studentPickerAvatarClass(index)"><image v-if="item.avatar" class="student-picker-avatar-image" :src="item.avatar" mode="aspectFill"></image><text v-else class="student-picker-avatar-text">{{ studentPickerInitial(item.name) }}</text></view>
+						<view class="student-picker-info"><view class="student-picker-name-row"><text class="student-picker-name">{{ item.name }}</text><text class="student-picker-grade">{{ item.school }} {{ item.className }}</text></view><text class="student-picker-detail">账号：{{ item.account }}</text></view>
+						<text class="student-picker-action" :class="selectedStudentId === item.id ? 'student-picker-action-selected' : ''">{{ selectedStudentId === item.id ? '当前查看' : '切换' }}</text>
+					</view>
+				</scroll-view>
+				<view class="student-picker-footer"><view class="student-picker-cancel" @tap="closeStudentPicker"><text class="student-picker-cancel-text">取消</text></view><view class="student-picker-confirm" @tap="confirmStudent"><text class="student-picker-confirm-text">确定</text></view></view>
+			</view>
+		</page-container>
 	</view>
 </template>
 
@@ -32,18 +54,24 @@
 	import StudyActivityChart from '../../components/study-activity-chart.uvue'
 	import StudyTrendChart from '../../components/study-trend-chart.uvue'
 	import UniIcons from '../../uni_modules/uni-icons-x/components/uni-icons/uni-icons.uvue'
-	import { apiGetStudentHomeProfile, apiGetStudentStudyReport, type StudentStudyReport, type StudyReportActivity, type StudyReportPeriod, type StudyReportSubjectMastery, type StudyReportTrendPoint } from '../../api/student'
-	import { homeStudentProfile, setHomeStudentProfile } from '../../store/home'
+	import { apiGetBoundStudents, apiGetStudentHomeProfile, apiGetStudentStudyReport, type BoundStudentSummary, type StudentStudyReport, type StudyReportActivity, type StudyReportPeriod, type StudyReportSubjectMastery, type StudyReportTrendPoint } from '../../api/student'
+	import { homeStudentProfile, selectedStudentChangeVersion, setHomeStudentProfile, switchBoundStudent } from '../../store/home'
 
 	const emptyActivity: StudyReportActivity = { summary: '', activeDays: 0, totalDurationText: '', points: [] }
 	const emptyPeriod: StudyReportPeriod = { rangeText: '', statusTitle: '', statusDescription: '', newMasteredPoints: 0, consecutiveDays: 0, averageAccuracy: 0, scaleLabels: [], trends: [], activity: emptyActivity, subjectMasteries: [] as StudyReportSubjectMastery[] }
-	const report = ref<StudentStudyReport>({ studentId: '', studentName: '', studentGrade: '', studentClass: '', updatedAtText: '', subjects: [], week: emptyPeriod, month: emptyPeriod })
+	const report = ref<StudentStudyReport>({ studentId: '', studentName: '', studentGrade: '', studentClass: '', updatedAtText: '', subjects: [{ id: '0', name: '全部科目' }], hasWeekReport: false, hasMonthReport: false, week: emptyPeriod, month: emptyPeriod })
 	const isLoading = ref(true)
 	const isRefreshing = ref(false)
+	const isStudentsLoading = ref(false)
+	const showStudentPicker = ref(false)
+	const boundStudents = ref<BoundStudentSummary[]>([])
+	const selectedStudentId = ref('')
 	const activePeriod = ref('week')
-	const activeSubjectId = ref('all')
+	const activeSubjectId = ref('0')
+	const observedStudentVersion = ref(selectedStudentChangeVersion.value)
 	const activeReport = computed((): StudyReportPeriod => activePeriod.value === 'week' ? report.value.week : report.value.month)
-	const reportPeriodLabel = computed((): string => activePeriod.value === 'week' ? '本周' : '本月')
+	const activeHasReport = computed((): boolean => activePeriod.value === 'week' ? report.value.hasWeekReport : report.value.hasMonthReport)
+	const reportPeriodLabel = computed((): string => activePeriod.value === 'week' ? '周报' : '月报')
 	const activeTrend = computed((): StudyReportTrendPoint[] => {
 		for (let index = 0; index < activeReport.value.trends.length; index++) {
 			const trend = activeReport.value.trends[index]
@@ -56,7 +84,16 @@
 		loadReport()
 	})
 
+	onShow(() => {
+		if (observedStudentVersion.value !== selectedStudentChangeVersion.value) {
+			observedStudentVersion.value = selectedStudentChangeVersion.value
+			loadReport()
+		}
+	})
+
 	async function loadReport() {
+		isLoading.value = true
+		activeSubjectId.value = '0'
 		let studentId = homeStudentProfile.value?.id ?? ''
 		if (!studentId) {
 			const profileRes = await apiGetStudentHomeProfile(undefined, false)
@@ -79,12 +116,57 @@
 
 	function setPeriod(period: string) {
 		activePeriod.value = period
+		activeSubjectId.value = '0'
 	}
 
 	function setSubject(subjectId: string) {
 		activeSubjectId.value = subjectId
 	}
 
+	async function openStudentPicker() {
+		showStudentPicker.value = true
+		selectedStudentId.value = homeStudentProfile.value?.id ?? ''
+		isStudentsLoading.value = true
+		const res = await apiGetBoundStudents()
+		if (res && res.data) {
+			boundStudents.value = res.data.students
+			if (!selectedStudentId.value && res.data.currentStudentId) selectedStudentId.value = res.data.currentStudentId
+		}
+		isStudentsLoading.value = false
+	}
+
+	function closeStudentPicker() {
+		showStudentPicker.value = false
+	}
+
+	function selectStudent(studentId: string) {
+		selectedStudentId.value = studentId
+	}
+
+	async function confirmStudent() {
+		if (!selectedStudentId.value) {
+			uni.showToast({ title: '请选择学生', icon: 'none' })
+			return
+		}
+		const selectedStudent = boundStudents.value.find((item) => item.id === selectedStudentId.value)
+		if (selectedStudent) {
+			switchBoundStudent(selectedStudent)
+			observedStudentVersion.value = selectedStudentChangeVersion.value
+		}
+		closeStudentPicker()
+		await loadReport()
+	}
+
+	function studentPickerInitial(name: string): string {
+		return name.length > 1 ? name.substring(1, 2) : name.substring(0, 1)
+	}
+
+	function studentPickerAvatarClass(index: number): string {
+		if (index === 0) return 'student-picker-avatar-0'
+		if (index === 1) return 'student-picker-avatar-1'
+		return 'student-picker-avatar-2'
+	}
+
 </script>
 
 <style>
@@ -104,6 +186,10 @@
 	.status-text { font-size: 13px; color: #8992a5; }
 	.content-panel { display: flex; flex-direction: column; padding: 12px 18px 24px; }
 	.filters-card { display: flex; flex-direction: column; padding: 12px; border-radius: 8px; background-color: #ffffff; }
+	.report-content { display: flex; flex-direction: column; }
+	.empty-report-card { display: flex; flex-direction: column; align-items: center; justify-content: center; margin-top: 16px; padding: 38px 18px; border-radius: 14px; background-color: #ffffff; }
+	.empty-report-title { font-size: 16px; font-weight: 700; color: #242b3d; }
+	.empty-report-text { margin-top: 8px; font-size: 12px; line-height: 19px; color: #8992a5; text-align: center; }
 	.period-tabs { display: flex; flex-direction: row; }
 	.period-tab { padding: 7px 14px; margin-right: 8px; border-radius: 16px; background-color: #f1f4f8; }
 	.period-tab-active { background-color: #554be9; }
@@ -152,4 +238,32 @@
 	.mastery-track { display: flex; flex-direction: row; height: 10px; margin-top: 7px; overflow: hidden; border-radius: 5px; background-color: #f1f4f8; }
 	.mastery-progress { height: 10px; border-radius: 5px 0 0 5px; background-color: #16bd88; }
 	.mastery-remaining { flex: 1; border-radius: 0 5px 5px 0; background-color: #f34d54; }
+	.student-picker-panel { display: flex; flex-direction: column; background-color: #ffffff; }
+	.student-picker-header { display: flex; flex-direction: column; padding: 18px 20px 12px; }
+	.student-picker-title { font-size: 18px; font-weight: 700; color: #242b3d; }
+	.student-picker-subtitle { margin-top: 5px; font-size: 12px; color: #8992a5; }
+	.student-picker-list { max-height: 340px; padding: 0 20px; }
+	.student-picker-empty { display: flex; flex-direction: column; align-items: center; justify-content: center; height: 150px; }
+	.student-picker-empty-text { font-size: 13px; color: #8992a5; }
+	.student-picker-item { display: flex; flex-direction: row; align-items: center; padding: 10px; margin-bottom: 10px; border: 1px solid #edf0f5; border-radius: 15px; background-color: #ffffff; }
+	.student-picker-item-selected { background-color: #f0efff; }
+	.student-picker-avatar { display: flex; flex-direction: column; align-items: center; justify-content: center; width: 46px; height: 46px; border-radius: 14px; background-color: #7161ed; }
+	.student-picker-avatar-0 { background-color: #6558e9; }
+	.student-picker-avatar-1 { background-color: #12a9df; }
+	.student-picker-avatar-2 { background-color: #e63a9c; }
+	.student-picker-avatar-image { width: 46px; height: 46px; border-radius: 14px; }
+	.student-picker-avatar-text { font-size: 18px; font-weight: 700; color: #ffffff; }
+	.student-picker-info { display: flex; flex-direction: column; flex: 1; margin-left: 11px; }
+	.student-picker-name-row { display: flex; flex-direction: row; align-items: center; margin-bottom: 5px; }
+	.student-picker-name { margin-right: 8px; font-size: 15px; font-weight: 700; color: #2a3042; }
+	.student-picker-grade { padding: 2px 6px; border-radius: 7px; font-size: 10px; color: #554be9; background-color: #e8e7ff; }
+	.student-picker-detail { margin-top: 2px; font-size: 11px; color: #7e8799; }
+	.student-picker-action { flex-shrink: 0; padding: 5px 8px; border-radius: 10px; font-size: 9px; color: #6e7c91; background-color: #f1f4f8; }
+	.student-picker-action-selected { color: #ffffff; background-color: #554be9; }
+	.student-picker-footer { display: flex; flex-direction: row; padding: 12px 20px 24px; border-top: 1px solid #edf0f5; }
+	.student-picker-cancel, .student-picker-confirm { display: flex; flex-direction: column; align-items: center; justify-content: center; flex: 1; height: 44px; border-radius: 11px; }
+	.student-picker-cancel { margin-right: 10px; background-color: #f0f2f7; }
+	.student-picker-confirm { background-color: #554be9; }
+	.student-picker-cancel-text { font-size: 15px; color: #596275; }
+	.student-picker-confirm-text { font-size: 15px; color: #ffffff; }
 </style>
diff --git a/pages/tasks/index.uvue b/pages/tasks/index.uvue
index 630e28a..c5143ea 100644
--- a/pages/tasks/index.uvue
+++ b/pages/tasks/index.uvue
@@ -1,100 +1,270 @@
 <template>
-	<view class="page-container"><view class="header-panel"><view class="header-copy"><text class="header-title">作业任务</text><text class="header-subtitle">{{ tasks.studentName }} · 待完成 {{ tasks.pendingCount }} 个</text></view><view class="header-action"><UniIcons type="person-filled" class="header-action-icon"></UniIcons></view></view><view class="filter-panel"><view v-for="filter in filters" :key="filter.id" class="filter-tab" :class="activeFilter === filter.id ? 'filter-tab-active' : ''" @tap="setFilter(filter.id)"><text class="filter-text" :class="activeFilter === filter.id ? 'filter-text-active' : ''">{{ filter.name }}</text></view></view><scroll-view class="content-scroll" direction="vertical" scroll-y="true" refresher-enabled="true" :refresher-triggered="isRefreshing" @refresherrefresh="refreshTasks"><view v-if="isLoading" class="status-panel"><text class="status-text">任务加载中</text></view><view v-else class="content-panel"><view v-for="group in visibleGroups" :key="group.id" class="group-card"><view class="group-heading"><view class="group-tags"><text class="subject-tag">{{ group.subject }}</text><text class="unit-tag">{{ group.unit }}</text><text class="lesson-title">{{ group.lesson }}</text></view><text class="knowledge-count">{{ group.knowledgeCount > 0 ? group.knowledgeCount + ' 个知识点' : '暂无学习内容' }}</text></view><text class="lesson-time">● {{ group.startText }}-{{ group.endText }}</text><view v-if="group.note" class="group-note"><text class="group-note-icon">i</text><text class="group-note-text">{{ group.note }}</text></view><view v-for="task in group.tasks" :key="task.id" v-show="matchesFilter(task)" class="detail-task"><view class="detail-task-heading"><text class="detail-task-title">{{ task.title }}</text><text class="detail-task-status" :class="'detail-task-status-' + task.status">{{ task.statusText }}</text></view><text class="detail-task-result" :class="'detail-task-result-' + task.status">● {{ task.statusText }} · 共 {{ task.status === 'success' ? '2' : '3' }} 次</text><text v-if="task.accuracyText" class="detail-task-meta">{{ task.accuracyText }} · {{ task.answerText }} · {{ task.deadlineText }}</text></view></view><view v-if="visibleGroups.length === 0" class="empty-panel"><text class="empty-text">暂无对应任务</text></view></view></scroll-view><MainTabBar active-tab="tasks"></MainTabBar></view>
+	<view class="page-container">
+		<view class="header-panel">
+			<view class="header-copy">
+				<text class="header-title">作业任务</text>
+				<text class="header-subtitle">{{ headerStudentName }} · 待完成 {{ tasks.pendingCount }} 个</text>
+			</view>
+			<view class="header-action" @tap="openStudentPicker"><UniIcons type="person-filled" class="header-action-icon"></UniIcons></view>
+		</view>
+
+		<view class="filter-panel">
+			<view v-for="filter in filters" :key="filter.id" class="filter-tab" :class="activeFilter === filter.id ? 'filter-tab-active' : ''" @tap="setFilter(filter.id)">
+				<text class="filter-text" :class="activeFilter === filter.id ? 'filter-text-active' : ''">{{ filter.name }}</text>
+			</view>
+		</view>
+
+		<scroll-view class="content-scroll" direction="vertical" scroll-y="true" refresher-enabled="true" :refresher-triggered="isRefreshing" @refresherrefresh="refreshTasks">
+			<view v-if="isLoading" class="status-panel"><text class="status-text">任务加载中</text></view>
+			<view v-else-if="visibleGroups.length === 0" class="empty-panel"><text class="empty-text">暂无任务</text></view>
+			<view v-else class="content-panel">
+				<view v-for="group in visibleGroups" :key="group.id" class="group-card">
+					<view class="group-heading">
+						<view class="group-title-row">
+							<text class="subject-tag">{{ group.subject || '学科' }}</text>
+							<text class="unit-tag">{{ group.unit || '学习' }}</text>
+							<text class="lesson-title">{{ group.lesson }}</text>
+						</view>
+						<text class="knowledge-count">{{ group.knowledgeCount }} 个知识点</text>
+					</view>
+					<view class="lesson-time-row"><view class="time-dot"></view><text class="lesson-time">今天 {{ group.startText }}—{{ group.endText }} 开课</text></view>
+
+					<view v-if="group.tasks.length === 0" class="task-empty"><text class="task-empty-text">暂无学习包</text></view>
+					<view v-for="task in group.tasks" :key="task.id" v-show="matchesFilter(task)" class="task-card">
+						<view class="task-heading"><text class="task-title">{{ task.title }}</text><text class="task-status" :class="taskStatusClass(task)">{{ task.statusText }}</text></view>
+						<view class="task-result-row"><view class="task-result-dot" :class="taskResultDotClass(task)"></view><text class="task-result" :class="taskResultClass(task)">{{ task.resultText }}</text></view>
+						<text class="task-attempt">{{ task.attemptText }}</text>
+						<view class="task-divider"></view>
+						<text class="task-meta">{{ task.metaText }}</text>
+					</view>
+				</view>
+			</view>
+		</scroll-view>
+
+		<MainTabBar active-tab="tasks"></MainTabBar>
+
+		<page-container :show="showStudentPicker" position="bottom" :round="true" :overlay="true" :close-on-slide-down="true" @beforeleave="closeStudentPicker">
+			<view class="student-picker-panel">
+				<view class="student-picker-header">
+					<text class="student-picker-title">切换孩子</text>
+					<text class="student-picker-subtitle">切换后将刷新当前孩子的作业任务</text>
+				</view>
+				<scroll-view class="student-picker-list" direction="vertical" scroll-y="true">
+					<view v-if="isStudentsLoading" class="student-picker-empty"><text class="student-picker-empty-text">学生信息加载中</text></view>
+					<view v-else-if="boundStudents.length === 0" class="student-picker-empty"><text class="student-picker-empty-text">暂无已绑定学生</text></view>
+					<view v-else v-for="(item, index) in boundStudents" :key="item.id" class="student-picker-item" :class="selectedStudentId === item.id ? 'student-picker-item-selected' : ''" @tap="selectStudent(item.id)">
+						<view class="student-picker-avatar" :class="studentPickerAvatarClass(index)"><image v-if="item.avatar" class="student-picker-avatar-image" :src="item.avatar" mode="aspectFill"></image><text v-else class="student-picker-avatar-text">{{ studentPickerInitial(item.name) }}</text></view>
+						<view class="student-picker-info"><view class="student-picker-name-row"><text class="student-picker-name">{{ item.name }}</text><text class="student-picker-grade">{{ item.school }} {{ item.className }}</text></view><text class="student-picker-detail">账号：{{ item.account }}</text></view>
+						<text class="student-picker-action" :class="selectedStudentId === item.id ? 'student-picker-action-selected' : ''">{{ selectedStudentId === item.id ? '当前查看' : '切换' }}</text>
+					</view>
+				</scroll-view>
+				<view class="student-picker-footer"><view class="student-picker-cancel" @tap="closeStudentPicker"><text class="student-picker-cancel-text">取消</text></view><view class="student-picker-confirm" @tap="confirmStudent"><text class="student-picker-confirm-text">确定</text></view></view>
+			</view>
+		</page-container>
+	</view>
 </template>
 
 <script setup lang="ts">
 	import MainTabBar from '../../components/main-tab-bar.uvue'
 	import UniIcons from '../../uni_modules/uni-icons-x/components/uni-icons/uni-icons.uvue'
-	import { apiGetParentStudyPacks, apiGetStudentHomeProfile, type LearningTaskItem, type ParentStudyPackStatus, type StudentLearningTasks } from '../../api/student'
-	import { homeStudentProfile, setHomeStudentProfile } from '../../store/home'
+	import { apiGetBoundStudents, apiGetParentStudyPacks, apiGetStudentHomeProfile, type BoundStudentSummary, type LearningTaskItem, type ParentStudyPackStatus, type StudentLearningTasks } from '../../api/student'
+	import { homeStudentProfile, selectedStudentChangeVersion, setHomeStudentProfile, switchBoundStudent } from '../../store/home'
 
 	const filters = [{ id: 'all', name: '全部' }, { id: 'pending', name: '待完成' }, { id: 'completed', name: '已完成' }, { id: 'failed', name: '未通过' }]
 	const activeFilter = ref('all')
 	const activeStatus = computed((): ParentStudyPackStatus => activeFilter.value === 'pending' ? 1 : activeFilter.value === 'completed' ? 2 : activeFilter.value === 'failed' ? 3 : 0)
 	const isLoading = ref(true)
 	const isRefreshing = ref(false)
-	const tasks = ref<StudentLearningTasks>({ studentId: '', studentName: '', studentGrade: '', studentClass: '', pendingCount: 0, completedCount: 0, failedCount: 0, groups: [] })
+	const isStudentsLoading = ref(false)
+	const showStudentPicker = ref(false)
+	const boundStudents = ref<BoundStudentSummary[]>([])
+	const selectedStudentId = ref('')
+	const observedStudentVersion = ref(selectedStudentChangeVersion.value)
+	const tasks = ref<StudentLearningTasks>({ studentId: '', studentName: '', studentGrade: '', studentClass: '', totalCount: 0, pendingCount: 0, completedCount: 0, failedCount: 0, groups: [] })
 	const visibleGroups = computed(() => tasks.value.groups.filter((group) => group.tasks.length === 0 || group.tasks.some((task) => matchesFilter(task))))
-	const headerStudentName = computed((): string => homeStudentProfile.value?.name ?? tasks.value.studentName)
-	const headerStudentGrade = computed((): string => homeStudentProfile.value?.grade ?? tasks.value.studentGrade)
-	const headerStudentClass = computed((): string => homeStudentProfile.value?.className ?? tasks.value.studentClass)
+	const headerStudentName = computed((): string => homeStudentProfile.value?.name ?? tasks.value.studentName ?? '孩子')
 
 	onLoad(() => { loadTasks() })
 
-	async function loadTasks() {
+	onShow(() => {
+		if (observedStudentVersion.value !== selectedStudentChangeVersion.value) {
+			observedStudentVersion.value = selectedStudentChangeVersion.value
+			loadTasks(false)
+		}
+	})
+
+	async function loadTasks(showLoading: boolean = true) {
+		isLoading.value = showLoading
 		let studentId = homeStudentProfile.value?.id ?? ''
 		if (!studentId) {
 			const profileRes = await apiGetStudentHomeProfile(undefined, false)
-			if (profileRes && profileRes.data) { setHomeStudentProfile(profileRes.data); studentId = profileRes.data.id }
+			if (profileRes && profileRes.data) {
+				setHomeStudentProfile(profileRes.data)
+				studentId = profileRes.data.id
+			}
 		}
 		if (studentId) {
-			const res = await apiGetParentStudyPacks(studentId, activeStatus.value)
-			if (res && res.data) {
-				tasks.value = {
-					...res.data,
-					studentName: `${homeStudentProfile.value?.name ?? res.data.studentName} · ${homeStudentProfile.value?.school ?? ''} ${homeStudentProfile.value?.className ?? res.data.studentClass}`
-				}
-			}
+			const res = await apiGetParentStudyPacks(studentId, activeStatus.value, showLoading)
+			if (res && res.data) tasks.value = res.data
 		}
 		isLoading.value = false
 	}
 
 	async function refreshTasks() {
 		isRefreshing.value = true
-		await loadTasks()
+		await loadTasks(false)
 		isRefreshing.value = false
 	}
 
 	async function setFilter(filter: string) {
+		if (activeFilter.value === filter) return
 		activeFilter.value = filter
-		await loadTasks()
+		await loadTasks(true)
 	}
+
 	function matchesFilter(task: LearningTaskItem): boolean {
 		if (activeFilter.value === 'all') return true
 		if (activeFilter.value === 'pending') return task.status === 'not_started' || task.status === 'in_progress'
 		if (activeFilter.value === 'completed') return task.status === 'success'
 		return task.status === 'failed'
 	}
+
+	function taskStatusClass(task: LearningTaskItem): string {
+		return `task-status-${task.status}`
+	}
+
+	function taskResultClass(task: LearningTaskItem): string {
+		return `task-result-${task.status}`
+	}
+
+	function taskResultDotClass(task: LearningTaskItem): string {
+		return `task-result-dot-${task.status}`
+	}
+
+	async function openStudentPicker() {
+		showStudentPicker.value = true
+		selectedStudentId.value = homeStudentProfile.value?.id ?? ''
+		isStudentsLoading.value = true
+		const res = await apiGetBoundStudents()
+		if (res && res.data) {
+			boundStudents.value = res.data.students
+			if (!selectedStudentId.value && res.data.currentStudentId) selectedStudentId.value = res.data.currentStudentId
+		}
+		isStudentsLoading.value = false
+	}
+
+	function closeStudentPicker() {
+		showStudentPicker.value = false
+	}
+
+	function selectStudent(studentId: string) {
+		selectedStudentId.value = studentId
+	}
+
+	async function confirmStudent() {
+		if (!selectedStudentId.value) {
+			uni.showToast({ title: '请选择学生', icon: 'none' })
+			return
+		}
+		const selectedStudent = boundStudents.value.find((item) => item.id === selectedStudentId.value)
+		if (selectedStudent) {
+			switchBoundStudent(selectedStudent)
+			observedStudentVersion.value = selectedStudentChangeVersion.value
+		}
+		closeStudentPicker()
+		await loadTasks(true)
+	}
+
+	function studentPickerInitial(name: string): string {
+		return name.length > 1 ? name.substring(1, 2) : name.substring(0, 1)
+	}
+
+	function studentPickerAvatarClass(index: number): string {
+		if (index === 0) return 'student-picker-avatar-0'
+		if (index === 1) return 'student-picker-avatar-1'
+		return 'student-picker-avatar-2'
+	}
 </script>
 
 <style>
 	.page-container { display: flex; flex-direction: column; flex: 1; background-color: #f5f7fb; }
-	.header-panel { display: flex; flex-direction: row; align-items: center; justify-content: space-between; padding: 16px 20px; background-color: #ffffff; border-bottom: 1px solid #edf0f5; }
+	.header-panel { display: flex; flex-direction: row; align-items: center; justify-content: space-between; padding: 4px 8px 10px; background-color: #ffffff; }
 	.header-copy { display: flex; flex-direction: column; }
-	.header-title { font-size: 18px; font-weight: 700; color: #242b3d; }
-	.header-subtitle { margin-top: 4px; font-size: 11px; color: #8992a5; }
-	.header-action { display: flex; flex-direction: column; align-items: center; justify-content: center; width: 36px; height: 36px; border-radius: 18px; background-color: #f0f1ff; }
-	.header-action-icon { font-size: 18px; color: #554be9; }
-	.filter-panel { display: flex; flex-direction: row; padding: 12px 20px; background-color: #ffffff; }
-	.filter-tab { display: flex; flex-direction: column; align-items: center; flex: 1; margin-right: 8px; padding: 7px 0; border-radius: 16px; text-align: center; background-color: #f1f4f8; }
-	.filter-tab-active { background-color: #554be9; }
-	.filter-text { font-size: 11px; color: #64748b; }
+	.header-title { font-size: 17px; font-weight: 800; color: #101827; }
+	.header-subtitle { margin-top: 5px; font-size: 11px; color: #7e8da3; }
+	.header-action { display: flex; flex-direction: column; align-items: center; justify-content: center; width: 36px; height: 36px; border-radius: 18px; background-color: #edf1ff; }
+	.header-action-icon { font-size: 18px; color: #5947ea; }
+	.filter-panel { display: flex; flex-direction: row; padding: 10px 8px 12px; background-color: #ffffff; }
+	.filter-tab { display: flex; flex-direction: column; align-items: center; justify-content: center; flex: 1; height: 28px; margin-right: 8px; border-radius: 16px; background-color: #eef2f7; }
+	.filter-tab-active { background-color: #5a45e8; }
+	.filter-text { font-size: 11px; color: #4e5b70; }
 	.filter-text-active { color: #ffffff; }
 	.content-scroll { flex: 1; }
-	.content-panel { display: flex; flex-direction: column; padding: 14px 16px 24px; }
-	.status-panel, .empty-panel { display: flex; flex-direction: column; align-items: center; justify-content: center; padding: 60px 0; }
-	.status-text, .empty-text { font-size: 13px; color: #8992a5; }
-	.group-card { display: flex; flex-direction: column; margin-bottom: 12px; padding: 16px; border-radius: 15px; background-color: #ffffff; }
+	.content-panel { display: flex; flex-direction: column; padding: 14px 8px 24px; }
+	.status-panel { display: flex; flex-direction: column; align-items: center; justify-content: center; padding: 60px 0; }
+	.empty-panel { display: flex; flex-direction: column; align-items: center; justify-content: center; padding: 60px 0; }
+	.status-text { font-size: 13px; color: #8992a5; }
+	.empty-text { font-size: 13px; color: #8992a5; }
+	.group-card { display: flex; flex-direction: column; margin-bottom: 12px; padding: 16px 14px 14px; border-radius: 14px; background-color: #ffffff; border: 1px solid #edf0f5; }
 	.group-heading { display: flex; flex-direction: row; align-items: center; justify-content: space-between; }
-	.group-tags { display: flex; flex-direction: row; align-items: center; flex: 1; }
-	.subject-tag, .unit-tag { padding: 3px 7px; margin-right: 6px; border-radius: 8px; font-size: 10px; color: #554be9; background-color: #eeefff; }
-	.unit-tag { color: #1598dc; background-color: #e6f5ff; }
-	.lesson-title { font-size: 13px; font-weight: 700; color: #242b3d; }
-	.knowledge-count { flex-shrink: 0; font-size: 10px; color: #8992a5; }
-	.lesson-time { margin-top: 7px; font-size: 11px; color: #8ca0bd; }
-	.group-note { display: flex; flex-direction: row; align-items: flex-start; margin-top: 12px; padding: 12px; border-radius: 12px; background-color: #f6f8fb; }
-	.group-note-icon { width: 12px; height: 12px; margin-right: 7px; border-radius: 6px; text-align: center; font-size: 9px; color: #ffffff; background-color: #9aa8bc; }
-	.group-note-text { flex: 1; font-size: 11px; line-height: 18px; color: #68778b; }
-	.detail-task { display: flex; flex-direction: column; margin-top: 10px; padding: 12px; border: 1px solid #edf0f5; border-radius: 12px; background-color: #f9fbfd; }
-	.detail-task-heading { display: flex; flex-direction: row; justify-content: space-between; }
-	.detail-task-title { font-size: 13px; color: #242b3d; }
-	.detail-task-status { padding: 3px 7px; border-radius: 8px; font-size: 10px; }
-	.detail-task-status-success { color: #16a979; background-color: #e8fbf3; }
-	.detail-task-status-in_progress { color: #5147e9; background-color: #eeefff; }
-	.detail-task-status-failed { color: #f34d54; background-color: #fff0f1; }
-	.detail-task-result { margin-top: 8px; font-size: 11px; }
-	.detail-task-result-success { color: #16a979; }
-	.detail-task-result-in_progress { color: #5147e9; }
-	.detail-task-result-failed { color: #f34d54; }
-	.detail-task-meta { margin-top: 8px; padding-top: 8px; border-top: 1px solid #e4eaf1; font-size: 10px; color: #8992a5; }
+	.group-title-row { display: flex; flex-direction: row; align-items: center; flex: 1; min-width: 0; }
+	.subject-tag { padding: 3px 7px; margin-right: 6px; border-radius: 9px; font-size: 10px; font-weight: 700; color: #5947ea; background-color: #eeefff; }
+	.unit-tag { padding: 3px 7px; margin-right: 8px; border-radius: 9px; font-size: 10px; font-weight: 700; color: #2f6bea; background-color: #edf5ff; }
+	.lesson-title { flex: 1; font-size: 14px; font-weight: 800; color: #1f2937; }
+	.knowledge-count { flex-shrink: 0; font-size: 11px; color: #8a99ae; }
+	.lesson-time-row { display: flex; flex-direction: row; align-items: center; margin-top: 8px; }
+	.time-dot { width: 8px; height: 8px; margin-right: 6px; border-radius: 4px; background-color: #9caec4; }
+	.lesson-time { font-size: 11px; color: #71849d; }
+	.task-empty { display: flex; flex-direction: column; align-items: center; padding: 18px 0; }
+	.task-empty-text { font-size: 12px; color: #8992a5; }
+	.task-card { display: flex; flex-direction: column; margin-top: 13px; padding: 12px; border-radius: 12px; background-color: #f8fafc; border: 1px solid #edf1f6; }
+	.task-heading { display: flex; flex-direction: row; align-items: center; justify-content: space-between; }
+	.task-title { flex: 1; font-size: 14px; font-weight: 700; color: #1f2937; }
+	.task-status { flex-shrink: 0; padding: 4px 8px; border-radius: 11px; font-size: 10px; }
+	.task-status-not_started { color: #516175; background-color: #edf2f7; }
+	.task-status-in_progress { color: #5947ea; background-color: #eeefff; }
+	.task-status-success { color: #04a86b; background-color: #e8fbf2; }
+	.task-status-failed { color: #ef4d62; background-color: #fff0f3; }
+	.task-result-row { display: flex; flex-direction: row; align-items: center; margin-top: 9px; }
+	.task-result-dot { width: 9px; height: 9px; margin-right: 7px; border-radius: 5px; }
+	.task-result-dot-not_started { background-color: #b6c2d0; }
+	.task-result-dot-in_progress { background-color: #5947ea; }
+	.task-result-dot-success { background-color: #04a86b; }
+	.task-result-dot-failed { background-color: #ef4d62; }
+	.task-result { font-size: 12px; font-weight: 700; }
+	.task-result-not_started { color: #64748b; }
+	.task-result-in_progress { color: #5947ea; }
+	.task-result-success { color: #04a86b; }
+	.task-result-failed { color: #ef4d62; }
+	.task-attempt { margin-top: 6px; font-size: 11px; color: #71849d; }
+	.task-divider { height: 1px; margin-top: 11px; background-color: #e3e9f1; }
+	.task-meta { margin-top: 9px; font-size: 11px; color: #71849d; }
+	.student-picker-panel { display: flex; flex-direction: column; background-color: #ffffff; }
+	.student-picker-header { display: flex; flex-direction: column; padding: 18px 20px 12px; }
+	.student-picker-title { font-size: 18px; font-weight: 700; color: #242b3d; }
+	.student-picker-subtitle { margin-top: 5px; font-size: 12px; color: #8992a5; }
+	.student-picker-list { max-height: 340px; padding: 0 20px; }
+	.student-picker-empty { display: flex; flex-direction: column; align-items: center; justify-content: center; height: 150px; }
+	.student-picker-empty-text { font-size: 13px; color: #8992a5; }
+	.student-picker-item { display: flex; flex-direction: row; align-items: center; padding: 10px; margin-bottom: 10px; border: 1px solid #edf0f5; border-radius: 15px; background-color: #ffffff; }
+	.student-picker-item-selected { background-color: #f0efff; }
+	.student-picker-avatar { display: flex; flex-direction: column; align-items: center; justify-content: center; width: 46px; height: 46px; border-radius: 14px; background-color: #7161ed; }
+	.student-picker-avatar-0 { background-color: #6558e9; }
+	.student-picker-avatar-1 { background-color: #12a9df; }
+	.student-picker-avatar-2 { background-color: #e63a9c; }
+	.student-picker-avatar-image { width: 46px; height: 46px; border-radius: 14px; }
+	.student-picker-avatar-text { font-size: 18px; font-weight: 700; color: #ffffff; }
+	.student-picker-info { display: flex; flex-direction: column; flex: 1; margin-left: 11px; }
+	.student-picker-name-row { display: flex; flex-direction: row; align-items: center; margin-bottom: 5px; }
+	.student-picker-name { margin-right: 8px; font-size: 15px; font-weight: 700; color: #2a3042; }
+	.student-picker-grade { padding: 2px 6px; border-radius: 7px; font-size: 10px; color: #554be9; background-color: #e8e7ff; }
+	.student-picker-detail { margin-top: 2px; font-size: 11px; color: #7e8799; }
+	.student-picker-action { flex-shrink: 0; padding: 5px 8px; border-radius: 10px; font-size: 9px; color: #6e7c91; background-color: #f1f4f8; }
+	.student-picker-action-selected { color: #ffffff; background-color: #554be9; }
+	.student-picker-footer { display: flex; flex-direction: row; padding: 12px 20px 24px; border-top: 1px solid #edf0f5; }
+	.student-picker-cancel, .student-picker-confirm { display: flex; flex-direction: column; align-items: center; justify-content: center; flex: 1; height: 44px; border-radius: 11px; }
+	.student-picker-cancel { margin-right: 10px; background-color: #f0f2f7; }
+	.student-picker-confirm { background-color: #554be9; }
+	.student-picker-cancel-text { font-size: 15px; color: #596275; }
+	.student-picker-confirm-text { font-size: 15px; color: #ffffff; }
 </style>
diff --git a/pages/today-learning/index.uvue b/pages/today-learning/index.uvue
index 9de7a83..c556b4e 100644
--- a/pages/today-learning/index.uvue
+++ b/pages/today-learning/index.uvue
@@ -56,7 +56,7 @@
 	import MainTabBar from '../../components/main-tab-bar.uvue'
 	import UniIcons from '../../uni_modules/uni-icons-x/components/uni-icons/uni-icons.uvue'
 	import { apiGetTodayLearningDetail, type TodayLearningDetail } from '../../api/student'
-	import { homeStudentProfile } from '../../store/home'
+	import { homeStudentProfile, selectedStudentChangeVersion } from '../../store/home'
 
 	const isLoading = ref(true)
 	const detail = ref<TodayLearningDetail>({
@@ -64,12 +64,21 @@
 		answerCount: 0, completedPackages: 0, totalPackages: 0, masteredPoints: 0, courses: [],
 		score: { accuracy: 0, yesterdayAccuracy: 0, change: 0 }, pointsTotal: 0, pointDetails: []
 	})
+	const observedStudentVersion = ref(selectedStudentChangeVersion.value)
 
 	onLoad(() => {
 		loadTodayLearning()
 	})
 
+	onShow(() => {
+		if (observedStudentVersion.value !== selectedStudentChangeVersion.value) {
+			observedStudentVersion.value = selectedStudentChangeVersion.value
+			loadTodayLearning()
+		}
+	})
+
 	async function loadTodayLearning() {
+		isLoading.value = true
 		const studentId = homeStudentProfile.value?.id ?? ''
 		if (!studentId) {
 			isLoading.value = false
diff --git a/pages/vocabulary/index.uvue b/pages/vocabulary/index.uvue
index 8b3d3d9..20c0e54 100644
--- a/pages/vocabulary/index.uvue
+++ b/pages/vocabulary/index.uvue
@@ -8,14 +8,23 @@
 <script setup lang="ts">
 	import UniIcons from '../../uni_modules/uni-icons-x/components/uni-icons/uni-icons.uvue'
 	import { apiGetStudentHomeProfile, apiGetStudentVocabulary, type StudentVocabulary, type VocabularyBook } from '../../api/student'
-	import { homeStudentProfile, setHomeStudentProfile } from '../../store/home'
+	import { homeStudentProfile, selectedStudentChangeVersion, setHomeStudentProfile } from '../../store/home'
 
 	const vocabulary = ref<StudentVocabulary>({ studentId: '', studentName: '', studentGrade: '', studentClass: '', bookCount: 0, books: [] })
 	const isLoading = ref(true)
+	const observedStudentVersion = ref(selectedStudentChangeVersion.value)
 
 	onLoad(() => { loadVocabulary() })
 
+	onShow(() => {
+		if (observedStudentVersion.value !== selectedStudentChangeVersion.value) {
+			observedStudentVersion.value = selectedStudentChangeVersion.value
+			loadVocabulary()
+		}
+	})
+
 	async function loadVocabulary() {
+		isLoading.value = true
 		let studentId = homeStudentProfile.value?.id ?? ''
 		if (!studentId) {
 			const profileRes = await apiGetStudentHomeProfile(undefined, false)
diff --git a/store/home.ts b/store/home.ts
index 1df173c..9f0845c 100644
--- a/store/home.ts
+++ b/store/home.ts
@@ -1,9 +1,12 @@
 import type { StudentAlert, StudentHomeMetrics, StudentHomeProfile } from '../api/student'
 
+type BoundStudentLike = { id: string, name: string, account: string, grade: string, school: string, className: string, avatar: string }
+
 // 仅在本次登录会话内缓存首页学生资料，切换一级页面时不重复请求。
 export const homeStudentProfile = ref<StudentHomeProfile | null>(null)
 export const homeStudentMetrics = ref<StudentHomeMetrics | null>(null)
 export const homeStudentAlerts = ref<StudentAlert[] | null>(null)
+export const selectedStudentChangeVersion = ref(0)
 
 export function setHomeStudentProfile(profile: StudentHomeProfile) {
 	const userInfo = uni.getStorageSync('userInfo') as { userId?: string } | null
@@ -23,7 +26,7 @@ export function setHomeStudentProfile(profile: StudentHomeProfile) {
 	}
 }
 
-export function saveSelectedStudent(student: { id: string, name: string, account: string, grade: string, school: string, className: string, avatar: string }) {
+export function saveSelectedStudent(student: BoundStudentLike) {
 	const userInfo = uni.getStorageSync('userInfo') as { userId?: string } | null
 	if (userInfo?.userId) uni.setStorageSync(`selectedStudent_${userInfo.userId}`, student)
 }
@@ -34,11 +37,19 @@ export function getSavedSelectedStudent(): { id: string, name: string, account:
 	return uni.getStorageSync(`selectedStudent_${userInfo.userId}`) as { id: string, name: string, account: string, grade: string, school: string, className: string, avatar: string } | null
 }
 
-export function applyBoundStudent(student: { id: string, name: string, account: string, grade: string, school: string, className: string, avatar: string }) {
+export function applyBoundStudent(student: BoundStudentLike) {
 	const comprehensiveLevel = homeStudentProfile.value?.id === student.id ? homeStudentProfile.value.comprehensiveLevel : 'good'
 	setHomeStudentProfile({ ...student, comprehensiveLevel })
 }
 
+export function switchBoundStudent(student: BoundStudentLike) {
+	saveSelectedStudent(student)
+	applyBoundStudent(student)
+	homeStudentMetrics.value = null
+	homeStudentAlerts.value = null
+	selectedStudentChangeVersion.value++
+}
+
 export function setHomeStudentMetrics(metrics: StudentHomeMetrics) {
 	homeStudentMetrics.value = metrics
 }
diff --git a/utils/request.ts b/utils/request.ts
index b1df382..40262b1 100644
--- a/utils/request.ts
+++ b/utils/request.ts
@@ -96,7 +96,7 @@ function requestInterceptor(config: RequestConfig): RequestConfig {
 /**
  * 响应拦截器 - 统一处理响应
  */
-function responseInterceptor<T>(response: UniNamespace.RequestSuccessCallbackResult, config: RequestConfig): ApiResponse<T> | null {
+function responseInterceptor<T>(response: any, config: RequestConfig): ApiResponse<T> | null {
 	// 隐藏Loading
 	if (config.showLoading !== false) {
 		hideLoading()
@@ -108,8 +108,13 @@ function responseInterceptor<T>(response: UniNamespace.RequestSuccessCallbackRes
 		return null
 	}
 	
-	// 解析响应数据
-	const result = response.data as ApiResponse<T>
+	// 解析响应数据，兼容后端 PascalCase 与前端 camelCase 两种包装格式。
+	const rawResult = response.data as any
+	const result: ApiResponse<T> = {
+		code: Number(rawResult?.code ?? rawResult?.Code),
+		message: String(rawResult?.message ?? rawResult?.Message ?? ''),
+		data: (rawResult?.data ?? rawResult?.Data ?? null) as T | null
+	}
 	
 	// 业务状态码检查
 	if (result.code !== 200) {
@@ -210,10 +215,10 @@ function createMockResponse<T>(config: RequestConfig): ApiResponse<T> {
 		const isSecondStudent = config.url.includes('studentId=test-student-002')
 		data = isSecondStudent ? {
 			studentId: 'test-student-002', onlineToday: true, checkedInToday: false, learningMinutesToday: 78,
-			accuracyToday: 88, learningDaysThisWeek: 4, shouldStudyDaysThisWeek: 5, pendingHomeworkCount: 2, updatedAt: '2026-10-28T08:30:00+08:00'
+			accuracyToday: 88, learningDaysThisWeek: 4, shouldStudyDaysThisWeek: 5, pendingPackCount: 2, updatedAt: '2026-10-28T08:30:00+08:00'
 		} : {
 			studentId: 'test-student-001', onlineToday: true, checkedInToday: true, learningMinutesToday: 155,
-			accuracyToday: 92, learningDaysThisWeek: 5, shouldStudyDaysThisWeek: 5, pendingHomeworkCount: 1, updatedAt: '2026-10-28T08:30:00+08:00'
+			accuracyToday: 92, learningDaysThisWeek: 5, shouldStudyDaysThisWeek: 5, pendingPackCount: 1, updatedAt: '2026-10-28T08:30:00+08:00'
 		}
 	} else if (config.url.includes('/api/parent/today-learning')) {
 		const isSecondStudent = config.url.includes('studentId=test-student-002')
@@ -385,7 +390,7 @@ export function request<T>(config: RequestConfig): Promise<ApiResponse<T> | null
 		// 请求拦截
 		const finalConfig = requestInterceptor(config)
 
-		if (USE_MOCK_API && !finalConfig.url.includes('/api/v1/Parents/')) {
+		if (USE_MOCK_API && !finalConfig.url.includes('/api/v1/Parents/') && !finalConfig.url.includes('/api/v1/ParentStudentToday/') && !finalConfig.url.includes('/api/v1/ParentLearningWarning/') && !finalConfig.url.includes('/api/v1/ParentStudyPack/') && !finalConfig.url.includes('/api/v1/ParentLearningReport/')) {
 			const delay = Math.floor(Math.random() * (MOCK_RESPONSE_MAX_DELAY + 1))
 			setTimeout(() => {
 				if (finalConfig.showLoading !== false) {