diff --git a/src/api/parent.ts b/src/api/parent.ts
index 53ae4c7..196adb4 100644
--- a/src/api/parent.ts
+++ b/src/api/parent.ts
@@ -210,6 +210,91 @@ export const getWrongQuestionSummary = (params: { userId: string | number }) =>
         params,
     });
 
+export interface QuestionTitle {
+    actualScore?: number;
+    aiAnalyze?: string;
+    aiAnswer?: string;
+    answer?: string;
+    answerHtml?: string;
+    answerSqs?: string;
+    correctResult?: number;
+    courseId?: number;
+    difficulty?: number;
+    difficultyCode?: number;
+    difficultyLevel?: string;
+    explanation?: string;
+    id?: string;
+    itemId?: number;
+    optionHtml?: string;
+    optionSqs?: string;
+    score?: number;
+    stem?: string;
+    stemHtml?: string;
+    submitAnswer?: string;
+    submitAnswerPic?: string;
+    typeId?: string;
+    typeName?: string;
+    [key: string]: any;
+}
+
+export interface WrongQuestionItem {
+    id: number;
+    questionId: string;
+    userId?: number;
+    subjectId?: number;
+    textbookId?: number;
+    chapterId?: number;
+    courseId?: number;
+    errorCount: number;
+    errorType?: number;
+    masteryLevel?: number;
+    status?: number;
+    firstErrorTime: string;
+    lastErrorTime: string;
+    lastCorrectTime?: string;
+    questionTitle?: QuestionTitle;
+    [key: string]: any;
+}
+
+export interface WrongQuestionFilterPageParams {
+    userId?: string | number;
+    subjectId?: string | number;
+    current?: number;
+    size?: number;
+    startTime?: string;
+    endTime?: string;
+}
+
+export interface FilterSubject {
+    id: number;
+    name: string;
+}
+
+/** 学科网 - 错题筛选分页列表 */
+export const getWrongQuestionFilterPage = (params: WrongQuestionFilterPageParams) => {
+    const query: Record<string, string | number> = {
+        current: params.current ?? 1,
+        size: params.size ?? 10,
+    };
+    if (params.userId) query.userId = params.userId;
+    if (params.subjectId) query.subjectId = Number(params.subjectId);
+    if (params.startTime) query.startTime = params.startTime;
+    if (params.endTime) query.endTime = params.endTime;
+    return request<PageResult<WrongQuestionItem>>({
+        url: '/xkw/wrong/question/filter/page',
+        method: 'GET',
+        params: query,
+    });
+};
+
+/** 学科网 - 错题筛选学科列表 */
+export const getWrongQuestionFilterSubjects = (params?: { userId?: string | number }) =>
+    request<FilterSubject[]>({
+        url: '/xkw/wrong/question/filter/subjects',
+        method: 'GET',
+        params: params?.userId ? { userId: params.userId } : undefined,
+    });
+
 /** 家长端 - 错题知识点占比 */
 export const getWrongKpointRatio = (params: { subjectId: string | number; userId: string | number }) =>
     request<WrongKpointRatioResult>({
diff --git a/src/components/ImageCropper/index.vue b/src/components/ImageCropper/index.vue
index ccd8a3e..bcc2662 100644
--- a/src/components/ImageCropper/index.vue
+++ b/src/components/ImageCropper/index.vue
@@ -117,6 +117,52 @@ const getTouchPoint = (e: any) => {
     return { x, y };
 };
 
+const syncViewportSize = (reloadWhenVisible = false) => {
+    uni.getSystemInfo({
+        success: (res) => {
+            safeAreaTop.value = res.safeArea?.top || 0;
+            safeAreaBottom.value =
+                (res.screenHeight && res.safeArea ? res.screenHeight - res.safeArea.bottom : 0) || 0;
+            const bottomReserve = controlsReservePx + safeAreaBottom.value;
+            const fallbackWidth = res.windowWidth;
+            const fallbackHeight = res.windowHeight;
+
+            const applySize = (width: number, height: number) => {
+                const nextWidth = Math.max(1, Math.round(width));
+                const nextHeight = Math.max(1, Math.round(height - bottomReserve));
+                const sizeChanged = nextWidth !== canvasWidth.value || nextHeight !== canvasHeight.value;
+                canvasWidth.value = nextWidth;
+                canvasHeight.value = nextHeight;
+                if (!ctx.value) {
+                    ctx.value = uni.createCanvasContext('imageCropperCanvas', componentProxy);
+                }
+                if (props.visible && props.imageSrc && (reloadWhenVisible || sizeChanged)) {
+                    tryInitAndLoad();
+                }
+            };
+
+            if (props.visible) {
+                nextTick(() => {
+                    uni.createSelectorQuery()
+                        .in(componentProxy)
+                        .select('.cropper-wrapper')
+                        .boundingClientRect((rect: any) => {
+                            if (rect?.width && rect?.height) {
+                                applySize(rect.width, rect.height);
+                                return;
+                            }
+                            applySize(fallbackWidth, fallbackHeight);
+                        })
+                        .exec();
+                });
+                return;
+            }
+
+            applySize(fallbackWidth, fallbackHeight);
+        },
+    });
+};
+
 const tryInitAndLoad = () => {
     if (!props.visible) return;
     if (!props.imageSrc) return;
@@ -133,21 +179,8 @@ const tryInitAndLoad = () => {
 };
 
 onMounted(() => {
-    // 获取设备信息，用于计算canvas大小和安全区
-    uni.getSystemInfo({
-        success: (res) => {
-            canvasWidth.value = res.windowWidth;
-            safeAreaTop.value = res.safeArea?.top || 0;
-            safeAreaBottom.value =
-                (res.screenHeight && res.safeArea ? res.screenHeight - res.safeArea.bottom : 0) || 0;
-            // 预留底部按钮区 + 安全区，避免按钮覆盖图片（尤其真机横屏）
-            const bottomReserve = controlsReservePx + safeAreaBottom.value;
-            canvasHeight.value = Math.max(1, res.windowHeight - bottomReserve);
-            // 自定义组件内的 canvas 必须传组件实例，否则会出现“黑屏/不绘制”
-            ctx.value = uni.createCanvasContext('imageCropperCanvas', componentProxy);
-            tryInitAndLoad();
-        },
-    });
+    // 横屏真机下 getSystemInfo 可能拿到旋转前尺寸，因此优先同步可视区域真实尺寸
+    syncViewportSize(false);
 });
 
 watch(
@@ -157,6 +190,7 @@ watch(
             imgInfo.value = null;
             return;
         }
+        syncViewportSize(true);
         tryInitAndLoad();
     },
     { immediate: true }
diff --git a/src/pages.json b/src/pages.json
index a59bb07..991c60b 100644
--- a/src/pages.json
+++ b/src/pages.json
@@ -14,7 +14,7 @@
                 "islogin": false
             },
             "style": {
-                "navigationBarTitleText": "学小乐AI",
+                "navigationBarTitleText": "灵犀学AI",
                 "enablePullDownRefresh": false,
                 "mp-weixin": {
                     "pageOrientation": "portrait"
@@ -34,6 +34,32 @@
                 }
             }
         },
+        {
+            "path": "pages/agreement/user/index",
+            "name": "agreement-user",
+            "meta": {
+                "islogin": false
+            },
+            "style": {
+                "navigationBarTitleText": "用户协议",
+                "mp-weixin": {
+                    "pageOrientation": "portrait"
+                }
+            }
+        },
+        {
+            "path": "pages/agreement/privacy/index",
+            "name": "agreement-privacy",
+            "meta": {
+                "islogin": false
+            },
+            "style": {
+                "navigationBarTitleText": "隐私政策",
+                "mp-weixin": {
+                    "pageOrientation": "portrait"
+                }
+            }
+        },
         {
             "path": "pages/homework/index",
             "name": "homework",
@@ -86,6 +112,19 @@
                 }
             }
         },
+        {
+            "path": "pages/wrong/list",
+            "name": "wrongList",
+            "meta": {
+                "islogin": true
+            },
+            "style": {
+                "navigationBarTitleText": "错题列表",
+                "mp-weixin": {
+                    "pageOrientation": "portrait"
+                }
+            }
+        },
         {
             "path": "pages/doWork/index",
             "name": "doWork",
@@ -276,7 +315,7 @@
     ],
     "globalStyle": {
         "navigationBarTextStyle": "black",
-        "navigationBarTitleText": "学小乐AI",
+        "navigationBarTitleText": "灵犀学AI",
         "navigationBarBackgroundColor": "#FFFFFF",
         "backgroundColor": "#F5F7FF",
         "pageOrientation": "portrait"
diff --git a/src/pages/agreement/privacy/index.vue b/src/pages/agreement/privacy/index.vue
new file mode 100644
index 0000000..49c411b
--- /dev/null
+++ b/src/pages/agreement/privacy/index.vue
@@ -0,0 +1,60 @@
+<template>
+    <scroll-view class="agreement-page" scroll-y :show-scrollbar="false">
+        <view class="container">
+            <view class="title">灵犀学隐私政策</view>
+            <view class="date">更新日期：2026-05-30</view>
+            <view class="content">
+                <text>
+                    我们重视您的个人信息与隐私保护。为向您提供学习服务，我们会在最小必要范围内收集和使用信息。
+                </text>
+                <text>1. 信息收集：可能包括账号信息、学习记录、设备信息等。</text>
+                <text>2. 信息用途：用于登录鉴权、学习功能实现、学习效果分析与服务优化。</text>
+                <text>3. 信息保护：我们采取合理安全措施保护您的信息，防止泄露、篡改或丢失。</text>
+                <text>4. 信息共享：除法律法规要求外，未经授权不会向第三方提供个人信息。</text>
+                <text>5. 权利保障：您可通过平台或管理员渠道申请查询、更正、删除相关信息。</text>
+            </view>
+        </view>
+    </scroll-view>
+</template>
+
+<script setup lang="ts">
+</script>
+
+<style scoped lang="scss">
+.agreement-page {
+    height: 100vh;
+    background: #f8fafc;
+}
+
+.container {
+    padding: 32rpx;
+}
+
+.title {
+    font-size: 40rpx;
+    font-weight: 800;
+    color: #0f172a;
+}
+
+.date {
+    margin-top: 12rpx;
+    font-size: 24rpx;
+    color: #64748b;
+}
+
+.content {
+    margin-top: 28rpx;
+    background: #ffffff;
+    border-radius: 24rpx;
+    padding: 28rpx;
+    display: flex;
+    flex-direction: column;
+    gap: 16rpx;
+
+    text {
+        font-size: 28rpx;
+        color: #334155;
+        line-height: 1.7;
+    }
+}
+</style>
diff --git a/src/pages/agreement/user/index.vue b/src/pages/agreement/user/index.vue
new file mode 100644
index 0000000..df9a94a
--- /dev/null
+++ b/src/pages/agreement/user/index.vue
@@ -0,0 +1,61 @@
+<template>
+    <scroll-view class="agreement-page" scroll-y :show-scrollbar="false">
+        <view class="container">
+            <view class="title">灵犀学用户协议</view>
+            <view class="date">更新日期：2026-05-30</view>
+            <view class="content">
+                <text>
+                    欢迎使用灵犀学。为保障您的合法权益，请在使用前仔细阅读本协议。您在注册、登录或使用服务时，
+                    即视为已阅读并同意本协议全部内容。
+                </text>
+                <text>1. 服务内容：我们提供学习任务、作业练习、学情分析等功能。</text>
+                <text>2. 账号安全：请妥善保管账号信息，因保管不善造成的风险由用户自行承担。</text>
+                <text>3. 合规使用：不得利用本服务从事违法违规活动，不得侵犯他人合法权益。</text>
+                <text>4. 服务变更：我们可能根据业务需要调整服务内容，并通过合理方式通知。</text>
+                <text>5. 联系方式：如有问题请联系平台运营方或学校管理员。</text>
+            </view>
+        </view>
+    </scroll-view>
+</template>
+
+<script setup lang="ts">
+</script>
+
+<style scoped lang="scss">
+.agreement-page {
+    height: 100vh;
+    background: #f8fafc;
+}
+
+.container {
+    padding: 32rpx;
+}
+
+.title {
+    font-size: 40rpx;
+    font-weight: 800;
+    color: #0f172a;
+}
+
+.date {
+    margin-top: 12rpx;
+    font-size: 24rpx;
+    color: #64748b;
+}
+
+.content {
+    margin-top: 28rpx;
+    background: #ffffff;
+    border-radius: 24rpx;
+    padding: 28rpx;
+    display: flex;
+    flex-direction: column;
+    gap: 16rpx;
+
+    text {
+        font-size: 28rpx;
+        color: #334155;
+        line-height: 1.7;
+    }
+}
+</style>
diff --git a/src/pages/doWork/components/Question.vue b/src/pages/doWork/components/Question.vue
index e8baea2..5ff683e 100644
--- a/src/pages/doWork/components/Question.vue
+++ b/src/pages/doWork/components/Question.vue
@@ -367,6 +367,7 @@
 import { ref, computed, watch, onUnmounted } from 'vue';
 import { uploadFile } from '@/api/upload';
 import ImageCropper from '@/components/ImageCropper/index.vue';
+import { formatQuestionHtml } from '@/utils/questionHtml';
 
 const props = defineProps<{
     data?: any;
@@ -377,7 +378,7 @@ const props = defineProps<{
     subjectId?: string;
 }>();
 
-const emit = defineEmits(['submit']);
+const emit = defineEmits(['submit', 'cropper-visible-change']);
 
 /* ============== 音频 ============== */
 const isAudioPlay = ref(false);
@@ -412,21 +413,18 @@ const previewTitleImage = (index: number) => {
     });
 };
 
-/* ============== 公式失败兜底集合 ============== */
-const failedFormulaUrls = ref<Set<string>>(new Set());
-
 /* ============== 题目过滤 ============== */
-const filterTitleWithoutImages = (title?: string, cidx?: number | string) => {
+const renderQuestionHtml = (title?: string, cidx?: number | string, options?: { stripImages?: boolean }) => {
     if (!title) return '';
-    let t = title.replace(/<img(?![^>]*formula-img)[^>]*\/?>/gi, '');
-    t = t.replace(/<u><\/u>/gi, '<u class="fill-blank"></u>');
-    t = t.replace(/http:\/\//gi, 'https://');
-    t = fixMathSymbolsInHtml(t);
-    t = processFormula(t, failedFormulaUrls.value);
+    let html = formatQuestionHtml(title, options);
     if (cidx !== undefined) {
-        t = `(${Number(cidx) + 1})` + t;
+        html = `(${Number(cidx) + 1})${html}`;
     }
-    return t;
+    return html;
+};
+
+const filterTitleWithoutImages = (title?: string, cidx?: number | string) => {
+    return renderQuestionHtml(title, cidx, { stripImages: true });
 };
 
 const parseJsonArray = (raw: any) => {
@@ -466,283 +464,6 @@ watch(
     { immediate: true },
 );
 
-/* ============== 数学符号修复 ============== */
-const fixMathSymbolsInHtml = (html: string): string => {
-    if (html == null || typeof html !== 'string') return '';
-    let t = html;
-    t = t.replace(/\uFE63/g, '\u2212');
-    t = t.replace(/<(?![a-zA-Z/!])/g, '&lt;');
-    t = t.replace(/ > /g, ' &gt; ');
-    t = t.replace(/AUB/g, 'A∪B');
-    return t;
-};
-
-/* ============== LaTeX 渲染 ============== */
-const LATEX_RENDER_URL = 'https://latex.codecogs.com/svg.image?';
-
-const latexToImageUrl = (latex: string): string => {
-    if (!latex) return '';
-    let formula = latex.trim();
-
-    const punctuationMap: Record<string, string> = {
-        '，': ',', '。': '.', '：': ':', '；': ';', '！': '!', '？': '?',
-        '（': '(', '）': ')', '【': '[', '】': ']', '｛': '{', '｝': '}',
-        '《': '<', '》': '>',
-        "\u201c": '"', "\u201d": '"', "\u2018": "'", "\u2019": "'",
-        '＋': '+', '－': '-', '\u2212': '-', '×': '*', '÷': '/',
-        '＝': '=', '＜': '<', '＞': '>', '％': '%', '＆': '&',
-        '＊': '*', '＠': '@', '＃': '#', '＄': '$', '＾': '^',
-        '～': '~', '｜': '|', '＼': '\\', '／': '/', '　': ' ',
-    };
-    for (const [cn, en] of Object.entries(punctuationMap)) {
-        formula = formula.split(cn).join(en);
-    }
-
-    const mathSymbolMap: Record<string, string> = {
-        '∈': ' \\in ', '∉': ' \\notin ', '⊂': ' \\subset ', '⊃': ' \\supset ',
-        '⊆': ' \\subseteq ', '⊇': ' \\supseteq ', '∪': ' \\cup ', '∩': ' \\cap ',
-        '∅': ' \\emptyset ',
-        '≤': ' \\leq ', '≥': ' \\geq ', '≠': ' \\neq ', '≈': ' \\approx ',
-        '≡': ' \\equiv ', '∝': ' \\propto ',
-        '±': ' \\pm ', '∓': ' \\mp ', '×': ' \\times ', '÷': ' \\div ',
-        '·': ' \\cdot ', '∘': ' \\circ ',
-        'α': '\\alpha ', 'β': '\\beta ', 'γ': '\\gamma ', 'δ': '\\delta ',
-        'ε': '\\varepsilon ', 'θ': '\\theta ', 'λ': '\\lambda ', 'μ': '\\mu ',
-        'σ': '\\sigma ', 'φ': '\\varphi ', 'ω': '\\omega ',
-        'Δ': '\\Delta ', 'Σ': '\\Sigma ', 'Ω': '\\Omega ',
-        '∞': '\\infty ', '∂': '\\partial ', '∇': '\\nabla ', '∫': '\\int ',
-        '∑': '\\sum ', '∏': '\\prod ', '√': '\\sqrt ', '∠': '\\angle ',
-        '⊥': '\\perp ', '∥': '\\parallel ',
-        '→': '\\to ', '⇒': '\\Rightarrow ', '⇔': '\\Leftrightarrow ',
-        '∀': '\\forall ', '∃': '\\exists ', '¬': '\\neg ',
-        '∧': '\\land ', '∨': '\\lor ',
-    };
-    for (const [symbol, latex] of Object.entries(mathSymbolMap)) {
-        formula = formula.split(symbol).join(latex);
-    }
-
-    formula = formula.replace(/\b([RNZQC])\+/g, '$1^+');
-    formula = formula.replace(/\b([RNZQC])\*/g, '$1^*');
-
-    formula = formula
-        .replace(/\\overset\s*\{\s*\\rightarrow\s*\}\s*\{([^}]+)\}/g, '\\vec{$1}')
-        .replace(/\\text\s*\{\s*π\s*\}/g, '\\pi')
-        .replace(/\\text\s*\{\s*sin\s*\}/gi, '\\sin')
-        .replace(/\\text\s*\{\s*cos\s*\}/gi, '\\cos')
-        .replace(/\\text\s*\{\s*tan\s*\}/gi, '\\tan')
-        .replace(/\\text\s*\{\s*log\s*\}/gi, '\\log')
-        .replace(/π/g, '\\pi');
-
-    const encoded = encodeURIComponent(formula);
-    return `${LATEX_RENDER_URL}\\inline&space;\\dpi{200}&space;${encoded}`;
-};
-
-const isSimpleFormula = (formula: string): boolean => {
-    const complexPatterns = [
-        /\\frac\b/, /\\sqrt\b/, /\\sum\b/, /\\int\b/, /\\prod\b/, /\\lim\b/,
-        /\\vec\b/, /\\overline\b/, /\\underline\b/, /\\overset\b/, /\\underset\b/,
-        /\\binom\b/, /\\matrix\b/, /\\begin\b/,
-        /\^{[^}]+}/, /_{[^}]+}/,
-    ];
-    return !complexPatterns.some((pattern) => pattern.test(formula));
-};
-
-const simpleFormulaToHtml = (formula: string): string => {
-    let text = formula;
-    text = text.replace(/\\text\s*\{([^}]*)\}/g, '$1');
-
-    const greekMap: Record<string, string> = {
-        '\\alpha': 'α', '\\beta': 'β', '\\gamma': 'γ', '\\delta': 'δ',
-        '\\epsilon': 'ε', '\\varepsilon': 'ε', '\\theta': 'θ', '\\lambda': 'λ',
-        '\\mu': 'μ', '\\pi': 'π', '\\sigma': 'σ', '\\phi': 'φ', '\\varphi': 'φ',
-        '\\omega': 'ω', '\\Delta': 'Δ', '\\Sigma': 'Σ', '\\Omega': 'Ω',
-    };
-    for (const [latex, symbol] of Object.entries(greekMap)) {
-        text = text.split(latex).join(symbol);
-    }
-
-    text = text.replace(/\\sin\b/g, 'sin');
-    text = text.replace(/\\cos\b/g, 'cos');
-    text = text.replace(/\\tan\b/g, 'tan');
-    text = text.replace(/\\log\b/g, 'log');
-    text = text.replace(/\\ln\b/g, 'ln');
-    text = text.replace(/\\infty\b/g, '∞');
-    text = text.replace(/\\pm\b/g, '±');
-    text = text.replace(/\\times\b/g, '×');
-    text = text.replace(/\\div\b/g, '÷');
-    text = text.replace(/\\leq\b/g, '≤');
-    text = text.replace(/\\geq\b/g, '≥');
-    text = text.replace(/\\neq\b/g, '≠');
-    text = text.replace(/\\in\b/g, '∈');
-    text = text.replace(/\\subset\b/g, '⊂');
-    text = text.replace(/\\cup\b/g, '∪');
-    text = text.replace(/\\cap\b/g, '∩');
-    text = text.replace(/\\emptyset\b/g, '∅');
-    text = text.replace(/\\cdot\b/g, '·');
-    text = text.replace(/\\to\b/g, '→');
-
-    const superscriptMap: Record<string, string> = {
-        '0': '⁰', '1': '¹', '2': '²', '3': '³', '4': '⁴',
-        '5': '⁵', '6': '⁶', '7': '⁷', '8': '⁸', '9': '⁹',
-        '+': '⁺', '-': '⁻', 'n': 'ⁿ',
-    };
-    const subscriptMap: Record<string, string> = {
-        '0': '₀', '1': '₁', '2': '₂', '3': '₃', '4': '₄',
-        '5': '₅', '6': '₆', '7': '₇', '8': '₈', '9': '₉',
-        '+': '₊', '-': '₋', 'n': 'ₙ', 'i': 'ᵢ', 'k': 'ₖ',
-    };
-    text = text.replace(/\^([0-9n+\-])/g, (_, char) => superscriptMap[char] || `^${char}`);
-    text = text.replace(/_([0-9nik+\-])/g, (_, char) => subscriptMap[char] || `_${char}`);
-
-    text = text.replace(/\\left\s*/g, '');
-    text = text.replace(/\\right\s*/g, '');
-    text = text.replace(/\\/g, '');
-
-    return `<span class="formula-text" style="font-style:italic;">${text}</span>`;
-};
-
-const processFormula = (html: string, failedUrls?: Set<string>): string => {
-    if (html == null || typeof html !== 'string') return '';
-    if (!html) return '';
-
-    const formulaRegex = /<span\s+((?:[^<>"']+|"[^"]*"|'[^']*')*)data-w-e-type=["']formula["']((?:[^<>"']+|"[^"]*"|'[^']*')*)>[\s\S]*?<\/span>/gi;
-
-    return html.replace(formulaRegex, (match) => {
-        const valueMatch = match.match(/data-value=["']([^"']+)["']/);
-        if (!valueMatch) return match;
-
-        let formula = valueMatch[1]
-            .replace(/\\\\/g, '\\')
-            .replace(/\\"/g, '"')
-            .replace(/\\'/g, "'");
-
-        if (!formula.trim()) return '';
-
-        if (isSimpleFormula(formula)) {
-            return simpleFormulaToHtml(formula);
-        }
-
-        const imageUrl = latexToImageUrl(formula);
-        if (failedUrls?.has(imageUrl)) {
-            const display = formula.length > 60 ? formula.substring(0, 60) + '…' : formula;
-            return `<span class="formula-text">[${display}]</span>`;
-        }
-        return `<img class="formula-img" src="${imageUrl}" style="height:1.4em;vertical-align:middle;" />`;
-    });
-};
-
-/* ============== 公式预加载 + 重试 ============== */
-const extractFormulaImageUrls = (html: string): string[] => {
-    if (html == null || typeof html !== 'string') return [];
-    const formulaRegex = /<span\s+((?:[^<>"']+|"[^"]*"|'[^']*')*)data-w-e-type=["']formula["']((?:[^<>"']+|"[^"]*"|'[^']*')*)>[\s\S]*?<\/span>/gi;
-    const urls: string[] = [];
-    let match;
-    while ((match = formulaRegex.exec(html)) !== null) {
-        const valueMatch = match[0].match(/data-value=["']([^"']+)["']/);
-        if (!valueMatch) continue;
-        let formula = valueMatch[1]
-            .replace(/\\\\/g, '\\')
-            .replace(/\\"/g, '"')
-            .replace(/\\'/g, "'");
-        if (!formula.trim()) continue;
-        if (isSimpleFormula(formula)) continue;
-        urls.push(latexToImageUrl(formula));
-    }
-    return urls;
-};
-
-const preloadImageWithRetry = (url: string, maxRetries = 3): Promise<boolean> => {
-    return new Promise((resolve) => {
-        let attempt = 0;
-        const tryLoad = () => {
-            uni.getImageInfo({
-                src: url,
-                success: () => resolve(true),
-                fail: () => {
-                    attempt++;
-                    if (attempt < maxRetries) {
-                        setTimeout(tryLoad, attempt * 1000);
-                    } else {
-                        resolve(false);
-                    }
-                },
-            });
-        };
-        tryLoad();
-    });
-};
-
-const collectAllRawHtml = (data: any): string[] => {
-    if (!data) return [];
-    const htmls: string[] = [];
-    if (data.pidTitle) htmls.push(data.pidTitle);
-    if (data.titleMu || data.title) htmls.push(data.titleMu || data.title);
-    if (data.children?.length) {
-        data.children.forEach((c: any) => { if (c.title) htmls.push(c.title); });
-    }
-    try {
-        let opts = data.optionsMu ?? data.options;
-        if (typeof opts === 'string') opts = JSON.parse(opts);
-        if (Array.isArray(opts)) {
-            opts.forEach((item: any) => {
-                if (typeof item === 'string') {
-                    if (item) htmls.push(item);
-                } else if (item?.stem || item?.options) {
-                    if (item.stem) htmls.push(String(item.stem));
-                    if (Array.isArray(item.options)) {
-                        item.options.forEach((sub: any) => {
-                            const sv = typeof sub === 'string' ? sub : (sub?.value ?? sub?.optionValue ?? '');
-                            if (sv) htmls.push(String(sv));
-                        });
-                    }
-                } else {
-                    const v = item?.value ?? item?.optionValue ?? '';
-                    if (v) htmls.push(String(v));
-                }
-            });
-        }
-    } catch { /* ignore */ }
-    if (data.answerMu || data.answer) htmls.push(data.answerMu || data.answer);
-    if (data.titleAnalyzeMu || data.titleAnalyze) htmls.push(data.titleAnalyzeMu || data.titleAnalyze);
-    if (data.aiAnswer != null) htmls.push(String(data.aiAnswer));
-    if (data.aiAnalyze != null) htmls.push(String(data.aiAnalyze));
-    return htmls;
-};
-
-let preloadGen = 0;
-watch(
-    () => props.data,
-    async (newData) => {
-        const generation = ++preloadGen;
-        failedFormulaUrls.value = new Set();
-        if (!newData) return;
-
-        const allUrls = new Set<string>();
-        for (const html of collectAllRawHtml(newData)) {
-            const processed = fixMathSymbolsInHtml(html);
-            extractFormulaImageUrls(processed).forEach((url) => allUrls.add(url));
-        }
-
-        if (allUrls.size === 0) return;
-
-        const results = await Promise.all(
-            Array.from(allUrls).map(async (url) => ({
-                url,
-                ok: await preloadImageWithRetry(url, 3),
-            })),
-        );
-
-        if (generation !== preloadGen) return;
-
-        const failed = results.filter((r) => !r.ok).map((r) => r.url);
-        if (failed.length > 0) {
-            console.warn(`[Question] ${failed.length} 张公式图片加载失败，已切换为文本兜底`, failed);
-            failedFormulaUrls.value = new Set(failed);
-        }
-    },
-    { immediate: true },
-);
-
 /* ============== 选项 ============== */
 const optionList = computed(() => {
     const data = props.data;
@@ -772,9 +493,7 @@ const optionList = computed(() => {
             const v = item?.html ?? item?.value ?? item?.optionValue ?? item?.content ?? '';
             value = v != null && v !== '' ? String(v) : '';
         }
-        value = fixMathSymbolsInHtml(value);
-        value = processFormula(value, failedFormulaUrls.value);
-        value = typeof value === 'string' ? value.replace(/http:\/\//gi, 'https://') : '';
+        value = formatQuestionHtml(value);
         return {
             key:
                 typeof item === 'string'
@@ -869,9 +588,7 @@ const yueDuList = computed(() => {
         const subOpts = rawSubOpts.map((opt: any, oIdx: number) => {
             let v = typeof opt === 'string' ? opt : (opt?.html ?? opt?.value ?? opt?.optionValue ?? opt?.content ?? '');
             v = v != null ? String(v) : '';
-            v = fixMathSymbolsInHtml(v);
-            v = processFormula(v, failedFormulaUrls.value);
-            v = v.replace(/http:\/\//gi, 'https://');
+            v = formatQuestionHtml(v);
             return {
                 label:
                     typeof opt === 'string'
@@ -883,9 +600,7 @@ const yueDuList = computed(() => {
         let stem = '';
         if (item.stem) {
             stem = String(item.stem);
-            stem = fixMathSymbolsInHtml(stem);
-            stem = processFormula(stem, failedFormulaUrls.value);
-            stem = stem.replace(/http:\/\//gi, 'https://');
+            stem = formatQuestionHtml(stem);
         }
         let horizontal = false;
         if (subOpts.length > 0) {
@@ -922,14 +637,7 @@ const resultClass = computed(() => {
 });
 
 const filterTitle = (title?: string, cidx?: number | string) => {
-    if (!title) return '';
-    let t = title.replace(/http:\/\//gi, 'https://');
-    t = fixMathSymbolsInHtml(t);
-    t = processFormula(t, failedFormulaUrls.value);
-    if (cidx !== undefined) {
-        t = `(${Number(cidx) + 1})` + t;
-    }
-    return t;
+    return renderQuestionHtml(title, cidx);
 };
 
 /* ============== 单选 ============== */
@@ -1048,6 +756,10 @@ const picList = computed(() => {
 const showCropper = ref(false);
 const cropperImageSrc = ref('');
 
+watch(showCropper, (visible) => {
+    emit('cropper-visible-change', visible);
+});
+
 const chooseImage = () => {
     const remain = 3 - picList.value.length;
     if (remain <= 0) {
diff --git a/src/pages/doWork/index.vue b/src/pages/doWork/index.vue
index a226ade..700e24d 100644
--- a/src/pages/doWork/index.vue
+++ b/src/pages/doWork/index.vue
@@ -9,11 +9,11 @@
             <view class="top-back" @click="handleBack">
                 <view class="back-arrow"></view>
             </view>
-            <view class="top-title">
+            <view v-if="!isCropperActive" class="top-title">
                 <text class="ellipsis">{{ title }}</text>
             </view>
             <view
-                v-if="!pageLoading"
+                v-if="!pageLoading && !isCropperActive"
                 class="top-meta"
                 :style="{ paddingRight: menuButtonRightRpx + 'rpx' }"
             >
@@ -48,6 +48,7 @@
                     :reportFlag="reportFlag"
                     :subjectId="paperInfo.subjectId"
                     @submit="submitQuestion"
+                    @cropper-visible-change="onCropperVisibleChange"
                 />
             </view>
 
@@ -119,6 +120,7 @@ import Question from './components/Question.vue';
 const pageLoading = ref(true);
 const submitLoading = ref(false);
 const menuButtonRightRpx = ref(0);
+const isCropperActive = ref(false);
 
 const paperList = ref<any[]>([]);
 const paperInfo = ref<any>({});
@@ -322,6 +324,10 @@ const submitQuestion = (answer: any) => {
     }
 };
 
+const onCropperVisibleChange = (visible: boolean) => {
+    isCropperActive.value = !!visible;
+};
+
 const submitTrain = async () => {
     clearTimer();
     submitLoading.value = true;
@@ -446,6 +452,7 @@ onMounted(() => {
 
 onUnmounted(() => {
     clearTimer();
+    isCropperActive.value = false;
     paperInfo.value = {};
     paperList.value = [];
     activeIdx.value = 0;
@@ -495,6 +502,7 @@ onUnmounted(() => {
     z-index: 10;
     display: flex;
     align-items: center;
+    justify-content: space-between;
     padding: 3rpx 12rpx 2rpx;
     gap: 8rpx;
 }
diff --git a/src/pages/homework/history/index.vue b/src/pages/homework/history/index.vue
index 947b28c..06fee30 100644
--- a/src/pages/homework/history/index.vue
+++ b/src/pages/homework/history/index.vue
@@ -301,7 +301,7 @@ onShow(() => {
 
 <style lang="scss" scoped>
 .hist-page {
-    min-height: 100vh;
+    height: 100vh;
     background: #f5f7ff;
     position: relative;
     overflow: hidden;
diff --git a/src/pages/homework/index.vue b/src/pages/homework/index.vue
index 61a1b5f..080e16c 100644
--- a/src/pages/homework/index.vue
+++ b/src/pages/homework/index.vue
@@ -274,7 +274,7 @@ onShow(() => {
 
 <style lang="scss" scoped>
 .hw-page {
-    min-height: 100vh;
+    height: 100vh;
     background: #f5f7ff;
     position: relative;
     overflow: hidden;
diff --git a/src/pages/index/index.vue b/src/pages/index/index.vue
index f35f78b..7966550 100644
--- a/src/pages/index/index.vue
+++ b/src/pages/index/index.vue
@@ -9,7 +9,7 @@
         <view class="hero">
             <view class="hero-greet">
                 <view class="hero-hello">{{ greeting }} 👋</view>
-                <view class="hero-title">学小乐<text class="hero-title-ai">AI</text></view>
+                <view class="hero-title">灵犀学<text class="hero-title-ai">AI</text></view>
                 <view class="hero-sub">让学习像玩游戏一样有趣</view>
             </view>
             <view class="hero-mascot">
@@ -57,10 +57,7 @@
 
         <view v-else class="user-card login-card" @click="goLogin">
             <view class="login-illu">
-                <svg viewBox="0 0 24 24" fill="none">
-                    <circle cx="12" cy="8" r="4" stroke="#4F46E5" stroke-width="1.8" />
-                    <path d="M4 21c0-4.4 3.6-8 8-8s8 3.6 8 8" stroke="#4F46E5" stroke-width="1.8" stroke-linecap="round" />
-                </svg>
+                <text class="icon-emoji">👤</text>
             </view>
             <view class="login-text">
                 <view class="login-title">点击登录账号</view>
@@ -79,11 +76,7 @@
             <view class="grid-card grid-card-primary" @click="navigate('/pages/homework/index')">
                 <view class="grid-card-decor"></view>
                 <view class="grid-card-icon">
-                    <svg viewBox="0 0 24 24" fill="none">
-                        <path d="M4 4h12l4 4v12a2 2 0 0 1-2 2H4a2 2 0 0 1-2-2V6a2 2 0 0 1 2-2z"
-                            stroke="#fff" stroke-width="1.8" stroke-linejoin="round" />
-                        <path d="M16 4v4h4M7 13h8M7 17h6" stroke="#fff" stroke-width="1.8" stroke-linecap="round" />
-                    </svg>
+                    <text class="icon-emoji">📝</text>
                 </view>
                 <view class="grid-card-info">
                     <view class="grid-card-title">我的作业</view>
@@ -98,10 +91,7 @@
             <view class="grid-card grid-card-cta" @click="navigate('/pages/homework/history/index')">
                 <view class="grid-card-decor"></view>
                 <view class="grid-card-icon">
-                    <svg viewBox="0 0 24 24" fill="none">
-                        <circle cx="12" cy="12" r="9" stroke="#fff" stroke-width="1.8" />
-                        <path d="M12 7v5l3 2" stroke="#fff" stroke-width="1.8" stroke-linecap="round" />
-                    </svg>
+                    <text class="icon-emoji">📚</text>
                 </view>
                 <view class="grid-card-info">
                     <view class="grid-card-title">作业记录</view>
@@ -117,11 +107,12 @@
         </view>
 
         <view class="tools">
-            <view class="tool-item" v-for="t in tools" :key="t.id" @click="onToolClick(t)">
-                <view class="tool-icon" :style="{ background: t.color }">
+            <view class="tool-item" :class="{ disabled: !t.enabled }" v-for="t in tools" :key="t.id" @click="onToolClick(t)">
+                <view class="tool-icon" :style="{ background: t.enabled ? t.color : '#e2e8f0' }">
                     <text class="tool-icon-emoji" v-if="t.emoji">{{ t.emoji }}</text>
                 </view>
                 <text class="tool-name">{{ t.name }}</text>
+                <text v-if="!t.enabled" class="tool-badge">开发中</text>
             </view>
         </view>
 
@@ -163,13 +154,14 @@ const greeting = computed(() => {
 });
 
 const tools = [
-    { id: 'speak', name: '口算练习', emoji: '🧮', color: 'linear-gradient(135deg,#fde68a 0%,#f59e0b 100%)' },
-    { id: 'word', name: '英语单词', emoji: '🅰️', color: 'linear-gradient(135deg,#bfdbfe 0%,#3b82f6 100%)' },
-    { id: 'wrong', name: '错题本', emoji: '📕', color: 'linear-gradient(135deg,#fecaca 0%,#ef4444 100%)' },
-    { id: 'rank', name: '排行榜', emoji: '🏆', color: 'linear-gradient(135deg,#bbf7d0 0%,#22c55e 100%)' },
+    { id: 'speak', name: '口算练习', emoji: '🧮', color: 'linear-gradient(135deg,#fde68a 0%,#f59e0b 100%)', enabled: false },
+    { id: 'word', name: '英语单词', emoji: '🅰️', color: 'linear-gradient(135deg,#bfdbfe 0%,#3b82f6 100%)', enabled: false },
+    { id: 'wrong', name: '错题本', emoji: '📕', color: 'linear-gradient(135deg,#fecaca 0%,#ef4444 100%)', enabled: true },
+    { id: 'rank', name: '排行榜', emoji: '🏆', color: 'linear-gradient(135deg,#bbf7d0 0%,#22c55e 100%)', enabled: false },
 ];
 
 const onToolClick = (t: any) => {
+    if (!t?.enabled) return;
     if (t.id === 'wrong') {
         navigate('/pages/wrong/index');
         return;
@@ -500,9 +492,8 @@ onShow(() => {
     align-items: center;
     justify-content: center;
 
-    svg {
-        width: 56rpx;
-        height: 56rpx;
+    .icon-emoji {
+        font-size: 46rpx;
     }
 }
 
@@ -608,9 +599,8 @@ onShow(() => {
     justify-content: center;
     backdrop-filter: blur(8rpx);
 
-    svg {
-        width: 44rpx;
-        height: 44rpx;
+    .icon-emoji {
+        font-size: 42rpx;
     }
 }
 
@@ -664,6 +654,7 @@ onShow(() => {
 }
 
 .tool-item {
+    position: relative;
     display: flex;
     flex-direction: column;
     align-items: center;
@@ -674,6 +665,10 @@ onShow(() => {
     &:active {
         transform: scale(0.92);
     }
+
+    &.disabled {
+        opacity: 0.72;
+    }
 }
 
 .tool-icon {
@@ -698,6 +693,12 @@ onShow(() => {
     font-weight: 500;
 }
 
+.tool-badge {
+    margin-top: 4rpx;
+    font-size: 18rpx;
+    color: #94a3b8;
+}
+
 /* 退出 */
 .logout {
     position: relative;
diff --git a/src/pages/login/index.vue b/src/pages/login/index.vue
index 6413d6c..81a7b12 100644
--- a/src/pages/login/index.vue
+++ b/src/pages/login/index.vue
@@ -13,8 +13,8 @@
                     <view class="brand-logo-glow"></view>
                     <image :src="logoUrl" mode="aspectFit" class="brand-logo-img" />
                 </view>
-                <view class="brand-name">学小乐<text class="brand-name-ai">AI</text></view>
-                <view class="brand-slogan">智能学习助手 · 让学习更轻松1</view>
+                <view class="brand-name">灵犀学<text class="brand-name-ai">AI</text></view>
+                <view class="brand-slogan">智能学习助手 · 让学习更轻松</view>
             </view>
 
             <!-- 角色切换 -->
@@ -139,12 +139,12 @@
                 </block>
             </view>
 
-            <view class="agreement">
+            <!-- <view class="agreement">
                 <text>登录即表示同意</text>
-                <text class="link">《用户协议》</text>
+                <text class="link" @click="openAgreement('user')">《用户协议》</text>
                 <text>与</text>
-                <text class="link">《隐私政策》</text>
-            </view>
+                <text class="link" @click="openAgreement('privacy')">《隐私政策》</text>
+            </view> -->
 
             <!-- 登录按钮 -->
             <block v-if="isParentLogin && parentStage === 'authorize'">
@@ -187,7 +187,7 @@ import { setCache, getCache } from '@/utils/cache';
 import { redirectToRoleHomeIfNeeded } from '@/utils/roleHome';
 
 const OSS_URL = 'https://xxl-1313840333.cos.ap-guangzhou.myqcloud.com';
-const logoUrl = `${OSS_URL}/urm/logo.png`;
+const logoUrl = `https://lxx-web-1313840333.cos.ap-chengdu.myqcloud.com/urm/mode.png`;
 
 const PHONE_REG = /^1[3-9]\d{9}$/;
 
@@ -294,6 +294,13 @@ const onLogoTap = () => {
     }
 };
 
+const openAgreement = (type: 'user' | 'privacy') => {
+    const url = type === 'user'
+        ? '/pages/agreement/user/index'
+        : '/pages/agreement/privacy/index';
+    uni.navigateTo({ url });
+};
+
 const getLoginTargetUrl = () => {
     const teacherHome = '/pages/teacher/index/index';
     const parentHome = '/pages/parent/home/index';
@@ -760,6 +767,7 @@ const onLogin = async () => {
 
     .link {
         color: #4f46e5;
+        padding: 0 6rpx;
     }
 }
 
diff --git a/src/pages/parent/profile/index.vue b/src/pages/parent/profile/index.vue
index d148fd9..6230bd6 100644
--- a/src/pages/parent/profile/index.vue
+++ b/src/pages/parent/profile/index.vue
@@ -128,8 +128,8 @@ const onBindSuccess = async () => {
 
 const showAbout = () => {
     uni.showModal({
-        title: '关于学小乐AI',
-        content: '学小乐AI为学生、老师和家长提供学习过程分析与成长陪伴。',
+        title: '关于灵犀学AI',
+        content: '灵犀学AI为学生、老师和家长提供学习过程分析与成长陪伴。',
         showCancel: false,
     });
 };
diff --git a/src/pages/teacher/index/index.vue b/src/pages/teacher/index/index.vue
index 429e5d4..4bebfe6 100644
--- a/src/pages/teacher/index/index.vue
+++ b/src/pages/teacher/index/index.vue
@@ -9,7 +9,7 @@
                     <image class="avatar" :src="avatarUrl" mode="aspectFill" />
                     <view class="profile-main">
                         <text class="hello">您好，{{ teacherName }}</text>
-                        <text class="school ellipsis">{{ teacherInfo.schoolName || '欢迎使用学小乐AI教师端' }}</text>
+                        <text class="school ellipsis">{{ teacherInfo.schoolName || '欢迎使用灵犀学AI教师端' }}</text>
                     </view>
                     <view class="logout-btn" @click="handleLogout">退出</view>
                 </view>
diff --git a/src/pages/wrong/index.vue b/src/pages/wrong/index.vue
index f2c5cfd..1a83735 100644
--- a/src/pages/wrong/index.vue
+++ b/src/pages/wrong/index.vue
@@ -16,14 +16,13 @@
                 </view>
             </view>
 
-            <view v-if="!pageLoading" class="content">
+            <view v-if="!pageLoading && !loadError" class="content">
                 <view class="subject-grid">
                     <view
                         v-for="subject in subjectStats"
                         :key="subject.name"
                         class="subject-card"
-                        :class="{ active: selectedSubject === subject.name }"
-                        @click="selectSubject(subject.name)"
+                        @click="openSubject(subject)"
                     >
                         <view class="subject-icon" :class="subject.tone">
                             <text>{{ subject.shortName }}</text>
@@ -48,136 +47,18 @@
                         </view>
                     </view>
                 </view>
-
-                <view class="tabs">
-                    <view
-                        v-for="tab in tabs"
-                        :key="tab.key"
-                        class="tab"
-                        :class="{ active: activeTab === tab.key }"
-                        @click="activeTab = tab.key"
-                    >
-                        <text>{{ tab.label }}</text>
-                        <text class="tab-count">{{ getTabCount(tab.key) }}</text>
-                    </view>
-                </view>
-
-                <view class="filter-row">
-                    <picker class="filter-picker" :range="gradeOptions" :value="gradeIndex" @change="onGradeChange">
-                        <view class="filter-pill">
-                            <text>{{ gradeOptions[gradeIndex] }}</text>
-                            <view class="filter-arrow"></view>
-                        </view>
-                    </picker>
-                    <picker class="filter-picker" :range="typeOptions" :value="typeIndex" @change="onTypeChange">
-                        <view class="filter-pill">
-                            <text>{{ typeOptions[typeIndex] }}</text>
-                            <view class="filter-arrow"></view>
-                        </view>
-                    </picker>
-                    <picker class="filter-picker" :range="examOptions" :value="examIndex" @change="onExamChange">
-                        <view class="filter-pill">
-                            <text>{{ examOptions[examIndex] }}</text>
-                            <view class="filter-arrow"></view>
-                        </view>
-                    </picker>
-                </view>
-
-                <view v-if="filteredQuestions.length" class="question-list">
-                    <view v-for="item in filteredQuestions" :key="item.id" class="question-card">
-                        <view class="question-head">
-                            <view class="question-index">
-                                <text>第{{ item.number }}题</text>
-                                <text>满分{{ item.score }}分</text>
-                            </view>
-                            <view class="status-tag" :class="item.status">{{ getStatusText(item.status) }}</view>
-                        </view>
-
-                        <view class="exam-name">{{ item.examName }}</view>
-                        <view class="question-title">
-                            <rich-text :nodes="item.title" />
-                        </view>
-
-                        <view v-if="item.options.length" class="option-list">
-                            <view v-for="option in item.options" :key="option.key" class="option-item">
-                                <text class="option-key">{{ option.key }}</text>
-                                <view class="option-value">
-                                    <rich-text :nodes="option.value" />
-                                </view>
-                            </view>
-                        </view>
-
-                        <view class="answer-tabs">
-                            <view
-                                class="answer-tab"
-                                :class="{ active: item.openPanel === 'mine' }"
-                                @click="item.openPanel = 'mine'"
-                            >
-                                我的作答
-                            </view>
-                            <view
-                                class="answer-tab"
-                                :class="{ active: item.openPanel === 'analysis' }"
-                                @click="item.openPanel = 'analysis'"
-                            >
-                                答案&解析
-                            </view>
-                            <view class="answer-tab action" @click="toggleReview(item)">
-                                {{ item.inReviewBook ? '移出复习本' : '加入复习本' }}
-                            </view>
-                        </view>
-
-                        <view v-if="item.openPanel === 'mine'" class="info-box mine">
-                            <view class="info-title">我的作答</view>
-                            <view class="info-content">{{ item.myAnswer || '未作答' }}</view>
-                        </view>
-
-                        <template v-else>
-                            <view class="info-box correct">
-                                <view class="info-title">正确答案</view>
-                                <view class="info-content">{{ item.answer || '暂无答案' }}</view>
-                            </view>
-                            <view v-if="item.analysis" class="info-box analysis">
-                                <view class="info-title">试题解析</view>
-                                <view class="info-content">
-                                    <rich-text :nodes="item.analysis" />
-                                </view>
-                            </view>
-                            <view v-if="item.knowledge" class="info-box knowledge">
-                                <view class="info-title">知识点</view>
-                                <view class="info-content">{{ item.knowledge }}</view>
-                            </view>
-                        </template>
-
-                        <view class="card-actions">
-                            <view class="mark-btn" @click="markMastered(item)">
-                                {{ item.status === 'mastered' ? '标为未掌握' : '标为已掌握' }}
-                            </view>
-                            <view class="practice-btn" @click="practiceAgain(item)">再练一次</view>
-                        </view>
-                    </view>
-                </view>
-
-                <view v-else class="empty-wrap">
-                    <xy-Empty type="learn" content="当前筛选下暂无错题" />
-                </view>
             </view>
 
             <view v-else class="loading-wrap">
                 <xy-Empty type="loading" content="正在整理错题..." />
             </view>
+            <view v-if="!pageLoading && loadError" class="error-wrap">
+                <xy-Empty type="network" :content="loadError" />
+                <view class="retry-btn" @click="loadSummary">点击重试</view>
+            </view>
 
             <view class="safe-bottom"></view>
         </scroll-view>
-
-        <!-- <view class="home-float" @click="goHome">
-            <view class="home-roof"></view>
-            <view class="home-body"></view>
-        </view> -->
-
-        <view v-if="!pageLoading && filteredQuestions.length" class="bottom-bar">
-            <view class="download-btn" @click="downloadWrongQuestions">一键下载错题</view>
-        </view>
     </view>
 </template>
 
@@ -185,340 +66,79 @@
 import { computed, ref } from 'vue';
 import { onLoad, onShow } from '@dcloudio/uni-app';
 import { storeToRefs } from 'pinia';
-import { getWrongQuestionSummary, type WrongQuestionSummaryResult } from '@/api/parent';
-import { getListCompleteRecord, getPaperRecordDetail } from '../../api/homework';
-import { resource_type_homework } from '@/constants/doWork';
+import type { WrongQuestionSummaryResult } from '@/api/parent';
 import { useParentStore } from '@/state/modules/parent';
 import { useUserStore } from '@/state/modules/user';
-
-type WrongStatus = 'new' | 'review' | 'mastered';
-type TabKey = 'all' | 'new' | 'mastered';
-
-interface WrongOption {
-    key: string;
-    value: string;
-}
-
-interface WrongQuestion {
-    id: string;
-    recordId: string;
-    subject: string;
-    grade: string;
-    type: string;
-    examName: string;
-    number: number;
-    score: number;
-    title: string;
-    options: WrongOption[];
-    myAnswer: string;
-    answer: string;
-    analysis: string;
-    knowledge: string;
-    status: WrongStatus;
-    inReviewBook: boolean;
-    openPanel: 'mine' | 'analysis';
-}
+import { buildSubjectStatRow, fetchWrongSummary } from './shared';
 
 const userStore = useUserStore();
 const parentStore = useParentStore();
 const { userInfo } = storeToRefs(userStore);
-const { activeChild } = storeToRefs(parentStore);
 
 const pageLoading = ref(true);
 const summaryData = ref<WrongQuestionSummaryResult | null>(null);
-const wrongQuestions = ref<WrongQuestion[]>([]);
-const selectedSubject = ref('全部');
-const activeTab = ref<TabKey>('all');
-const gradeIndex = ref(0);
-const typeIndex = ref(0);
-const examIndex = ref(0);
-
-const tabs: { key: TabKey; label: string }[] = [
-    { key: 'all', label: '全部错题' },
-    { key: 'new', label: '未掌握' },
-    { key: 'mastered', label: '已掌握' },
-];
-
-const subjectTones = ['blue', 'green', 'orange', 'rose', 'violet'];
+const loadError = ref('');
+const skipFirstOnShow = ref(true);
 
 const totalWrong = computed(() => {
     const subjects = summaryData.value?.subjects || [];
     if (subjects.length) {
         return subjects.reduce((sum, item) => sum + (item.totalCount || 0), 0);
     }
-    return wrongQuestions.value.length;
-});
-
-const buildSubjectStatRow = (
-    name: string,
-    stats: { total: number; newCount: number; reviewCount: number; masteredCount: number },
-    index: number,
-) => ({
-    name,
-    shortName: name === '全部' ? '全' : name.slice(0, 1),
-    tone: subjectTones[index % subjectTones.length],
-    total: stats.total,
-    newCount: stats.newCount,
-    reviewCount: stats.reviewCount,
-    masteredCount: stats.masteredCount,
+    return 0;
 });
 
 const subjectStats = computed(() => {
     const apiSubjects = summaryData.value?.subjects || [];
-    if (apiSubjects.length) {
-        const allStats = apiSubjects.reduce<{ total: number; newCount: number; reviewCount: number; masteredCount: number }>(
-            (acc, item) => ({
-                total: acc.total + (item.totalCount || 0),
-                newCount: acc.newCount + (item.newCount || 0),
-                reviewCount: acc.reviewCount + (item.reviewCount || 0),
-                masteredCount: acc.masteredCount + (item.masteredCount || 0),
-            }),
-            { total: 0, newCount: 0, reviewCount: 0, masteredCount: 0 },
-        );
-        return [
-            buildSubjectStatRow('全部', allStats, 0),
-            ...apiSubjects.map((item, index) => buildSubjectStatRow(
-                item.subjectName || '其他',
-                {
-                    total: item.totalCount || 0,
-                    newCount: item.newCount || 0,
-                    reviewCount: item.reviewCount || 0,
-                    masteredCount: item.masteredCount || 0,
-                },
-                index + 1,
-            )),
-        ];
-    }
+    return apiSubjects.map((item, index) => ({
+        ...buildSubjectStatRow(
+            item.subjectName || '其他',
+            {
+                total: item.totalCount || 0,
+                newCount: item.newCount || 0,
+                reviewCount: item.reviewCount || 0,
+                masteredCount: item.masteredCount || 0,
+            },
+            index,
+        ),
+        subjectId: item.subjectId,
+    }));
+});
 
-    const subjects = ['全部', ...Array.from(new Set(wrongQuestions.value.map((item) => item.subject).filter(Boolean)))];
-    return subjects.map((name, index) => {
-        const list = name === '全部' ? wrongQuestions.value : wrongQuestions.value.filter((item) => item.subject === name);
-        return buildSubjectStatRow(name, {
-            total: list.length,
-            newCount: list.filter((item) => item.status === 'new').length,
-            reviewCount: list.filter((item) => item.inReviewBook).length,
-            masteredCount: list.filter((item) => item.status === 'mastered').length,
-        }, index);
+const openSubject = (subject: { name: string; subjectId?: number }) => {
+    const query = [`subject=${encodeURIComponent(subject.name)}`];
+    if (subject.subjectId != null) {
+        query.push(`subjectId=${subject.subjectId}`);
+    }
+    const userId = parentStore.activeChild.id || parentStore.activeChildId;
+    if (userId) {
+        query.push(`userId=${userId}`);
+    }
+    uni.navigateTo({
+        url: `/pages/wrong/list?${query.join('&')}`,
     });
-});
-
-const scopedQuestions = computed(() => {
-    let list = wrongQuestions.value;
-    if (selectedSubject.value !== '全部') {
-        list = list.filter((item) => item.subject === selectedSubject.value);
-    }
-    return list;
-});
-
-const gradeOptions = computed(() => ['不限年级', ...Array.from(new Set(scopedQuestions.value.map((item) => item.grade).filter(Boolean)))]);
-const typeOptions = computed(() => ['不限类型', ...Array.from(new Set(scopedQuestions.value.map((item) => item.type).filter(Boolean)))]);
-const examOptions = computed(() => ['选择考试', ...Array.from(new Set(scopedQuestions.value.map((item) => item.examName).filter(Boolean)))]);
-
-const filteredQuestions = computed(() => {
-    const grade = gradeOptions.value[gradeIndex.value];
-    const type = typeOptions.value[typeIndex.value];
-    const exam = examOptions.value[examIndex.value];
-    return scopedQuestions.value.filter((item) => {
-        const tabMatched = activeTab.value === 'all'
-            || (activeTab.value === 'new' && item.status !== 'mastered')
-            || (activeTab.value === 'mastered' && item.status === 'mastered');
-        const gradeMatched = !grade || grade === '不限年级' || item.grade === grade;
-        const typeMatched = !type || type === '不限类型' || item.type === type;
-        const examMatched = !exam || exam === '选择考试' || item.examName === exam;
-        return tabMatched && gradeMatched && typeMatched && examMatched;
-    });
-});
-
-const getTabCount = (key: TabKey) => {
-    if (key === 'all') return scopedQuestions.value.length;
-    if (key === 'new') return scopedQuestions.value.filter((item) => item.status !== 'mastered').length;
-    return scopedQuestions.value.filter((item) => item.status === 'mastered').length;
-};
-
-const selectSubject = (name: string) => {
-    selectedSubject.value = name;
-    gradeIndex.value = 0;
-    typeIndex.value = 0;
-    examIndex.value = 0;
-};
-
-const onGradeChange = (e: any) => { gradeIndex.value = Number(e.detail.value); };
-const onTypeChange = (e: any) => { typeIndex.value = Number(e.detail.value); };
-const onExamChange = (e: any) => { examIndex.value = Number(e.detail.value); };
-
-const normalizeHtml = (html?: string) => {
-    if (!html) return '';
-    return String(html)
-        .replace(/http:\/\//gi, 'https://')
-        .replace(/<img(?![^>]*formula-img)[^>]*\/?>/gi, '');
-};
-
-const normalizeAnswer = (value: any) => {
-    if (Array.isArray(value)) return value.join('、');
-    if (value == null) return '';
-    return String(value).replace(/^\[|\]$/g, '').replace(/"/g, '').replace(/,/g, '、');
-};
-
-const parseOptions = (raw: any): WrongOption[] => {
-    let list = raw;
-    if (typeof list === 'string') {
-        try {
-            list = JSON.parse(list);
-        } catch {
-            list = [];
-        }
-    }
-    if (!Array.isArray(list)) return [];
-    return list.map((item, index) => ({
-        key: typeof item === 'string' ? String.fromCharCode(65 + index) : (item?.key || item?.optionKey || item?.label || String.fromCharCode(65 + index)),
-        value: normalizeHtml(typeof item === 'string' ? item : (item?.value || item?.optionValue || '')),
-    })).filter((item) => item.value);
-};
-
-const getGradeText = (record: any, item: any) => {
-    return item.gradeName || item.grade || record.gradeName || record.grade || '未分年级';
-};
-
-const isWrongQuestion = (item: any) => {
-    const hasAnswer = Boolean(item.submitAnswer || item.submitAnswerPic);
-    const correct = item.correctResult === 1 || item.correctResult === true || item.markFlag === 1 || item.markFlag === true;
-    return hasAnswer && !correct;
-};
-
-const mapQuestion = (record: any, item: any, index: number): WrongQuestion => ({
-    id: String(item.itemId || item.id || `${record.id}-${index}`),
-    recordId: String(record.id || record.recordId || ''),
-    subject: item.subjectName || record.subjectName || '其他',
-    grade: getGradeText(record, item),
-    type: item.titleChannelTypeName || item.chanelTypeName || '综合题',
-    examName: record.paperName || record.jobName || item.paperName || '未命名考试',
-    number: Number(item.titleSort || item.sort || index + 1),
-    score: Number(item.titleScore || item.score || 0),
-    title: normalizeHtml(item.titleMu || item.title || item.pidTitle || '暂无题干'),
-    options: parseOptions(item.optionsMu ?? item.options),
-    myAnswer: normalizeAnswer(item.submitAnswer || item.submitAnswerPic),
-    answer: normalizeAnswer(item.answerMu || item.answer),
-    analysis: normalizeHtml(item.titleAnalyzeMu || item.titleAnalyze || item.aiAnalyze),
-    knowledge: item.knowledgeName || item.knowledge || item.knowledgePointName || '待归类',
-    status: 'new',
-    inReviewBook: false,
-    openPanel: 'analysis',
-});
-
-const resolveUserId = async () => {
-    try {
-        if (!userInfo.value.id) {
-            await userStore.fetchParentUserInfo();
-        }
-        if (userInfo.value.id) {
-            await parentStore.fetchBindChildren(userInfo.value.id);
-        }
-    } catch {
-        /* ignore */
-    }
-
-    if (activeChild.value.id) {
-        return activeChild.value.id;
-    }
-
-    try {
-        if (!userInfo.value.id) {
-            await userStore.fetchUserInfo();
-        }
-    } catch {
-        /* ignore */
-    }
-
-    return userInfo.value.id || '';
 };
 
 const loadSummary = async () => {
-    const userId = await resolveUserId();
-    if (!userId) {
-        summaryData.value = null;
-        return;
-    }
-
-    try {
-        const res = await getWrongQuestionSummary({ userId });
-        summaryData.value = res.data || null;
-    } catch (err) {
-        console.error('[wrong] summary err', err);
-        summaryData.value = null;
-    }
-};
-
-const loadWrongQuestions = async () => {
+    if (pageLoading.value) return;
     pageLoading.value = true;
+    loadError.value = '';
     try {
-        await loadSummary();
-        const recordsRes: any = await getListCompleteRecord();
-        const records = Array.isArray(recordsRes?.data) ? recordsRes.data : Array.isArray(recordsRes) ? recordsRes : [];
-        const detailRecords = await Promise.all(
-            records.slice(0, 20).map(async (record: any) => {
-                try {
-                    const detailRes: any = await getPaperRecordDetail({
-                        recordId: record.id || record.recordId,
-                        reportFlag: 1,
-                    });
-                    return {
-                        record,
-                        questions: detailRes?.data?.titleVoList || detailRes?.data?.subjectTitleVoList || [],
-                    };
-                } catch (err) {
-                    console.warn('[wrong] detail err', err);
-                    return { record, questions: [] };
-                }
-            }),
-        );
-        wrongQuestions.value = detailRecords.reduce<WrongQuestion[]>((list, { record, questions }) => {
-            const current = questions
-                .filter(isWrongQuestion)
-                .map((item: any, index: number) => mapQuestion(record, item, index));
-            return list.concat(current);
-        }, []);
+        summaryData.value = await fetchWrongSummary();
     } catch (err) {
-        console.error('[wrong] load err', err);
-        uni.showToast({ title: '错题加载失败', icon: 'none' });
-        wrongQuestions.value = [];
+        console.error('[wrong/index] summary load failed', err);
+        summaryData.value = null;
+        loadError.value = '错题数据加载失败，请检查网络后重试';
     } finally {
         pageLoading.value = false;
     }
 };
 
-const getStatusText = (status: WrongStatus) => {
-    if (status === 'mastered') return '已掌握';
-    if (status === 'review') return '复习中';
-    return '未掌握';
-};
-
-const toggleReview = (item: WrongQuestion) => {
-    item.inReviewBook = !item.inReviewBook;
-    if (item.inReviewBook && item.status === 'new') item.status = 'review';
-    if (!item.inReviewBook && item.status === 'review') item.status = 'new';
-    uni.showToast({ title: item.inReviewBook ? '已加入复习本' : '已移出复习本', icon: 'none' });
-};
-
-const markMastered = (item: WrongQuestion) => {
-    item.status = item.status === 'mastered' ? 'new' : 'mastered';
-    if (item.status === 'mastered') item.inReviewBook = false;
-};
-
-const practiceAgain = (item: WrongQuestion) => {
-    uni.navigateTo({
-        url: `/pages/doWork/index?id=${item.recordId}&recordId=${item.recordId}&reportFlag=1&resourceType=${resource_type_homework}&idx=${Math.max(item.number - 1, 0)}`,
-    });
-};
-
-const downloadWrongQuestions = () => {
-    uni.showToast({ title: '下载功能对接中', icon: 'none' });
-};
-
-const goHome = () => {
-    uni.reLaunch({ url: '/pages/index/index' });
-};
-
 onShow(async () => {
+    if (skipFirstOnShow.value) {
+        skipFirstOnShow.value = false;
+        return;
+    }
     try {
         if (!userInfo.value.id) {
             await userStore.fetchParentUserInfo();
@@ -533,7 +153,8 @@ onShow(async () => {
 });
 
 onLoad(() => {
-    loadWrongQuestions();
+    pageLoading.value = false;
+    loadSummary();
 });
 </script>
 
@@ -654,18 +275,13 @@ onLoad(() => {
     border-radius: 32rpx;
     background: rgba(255, 255, 255, 0.94);
     box-shadow: 0 14rpx 28rpx rgba(8, 145, 178, 0.08);
-    transition: transform 160ms ease, border-color 160ms ease;
+    transition: transform 160ms ease;
 }
 
 .subject-card:active {
     transform: scale(0.98);
 }
 
-.subject-card.active {
-    border-color: #22d3ee;
-    box-shadow: 0 18rpx 34rpx rgba(8, 145, 178, 0.14);
-}
-
 .subject-icon {
     grid-row: span 2;
     width: 96rpx;
@@ -730,354 +346,35 @@ onLoad(() => {
     font-size: 20rpx;
 }
 
-.tabs {
-    display: flex;
-    gap: 14rpx;
-    margin-top: 28rpx;
-    padding: 8rpx;
-    border-radius: 999rpx;
-    background: rgba(226, 232, 240, 0.55);
-}
-
-.tab {
-    flex: 1;
-    height: 66rpx;
-    border-radius: 999rpx;
-    display: flex;
-    align-items: center;
-    justify-content: center;
-    gap: 8rpx;
-    color: #64748b;
-    font-size: 24rpx;
-    font-weight: 800;
-}
-
-.tab.active {
-    color: #ffffff;
-    background: linear-gradient(180deg, #22d3ee 0%, #0891b2 100%);
-    box-shadow: 0 10rpx 18rpx rgba(8, 145, 178, 0.18);
-}
-
-.tab-count {
-    min-width: 32rpx;
-    height: 32rpx;
-    padding: 0 8rpx;
-    border-radius: 999rpx;
-    display: flex;
-    align-items: center;
-    justify-content: center;
-    color: inherit;
-    background: rgba(255, 255, 255, 0.24);
-    font-size: 20rpx;
-}
-
-.filter-row {
-    display: grid;
-    grid-template-columns: repeat(3, 1fr);
-    gap: 14rpx;
-    margin-top: 22rpx;
-}
-
-.filter-picker {
-    min-width: 0;
-}
-
-.filter-pill {
-    height: 70rpx;
-    padding: 0 16rpx;
-    border: 2rpx solid #e2e8f0;
-    border-radius: 22rpx;
-    display: flex;
-    align-items: center;
-    justify-content: center;
-    gap: 8rpx;
-    color: #334155;
-    background: rgba(255, 255, 255, 0.95);
-    font-size: 22rpx;
-    font-weight: 700;
-}
-
-.filter-pill text {
-    overflow: hidden;
-    text-overflow: ellipsis;
-    white-space: nowrap;
-}
-
-.filter-arrow {
-    width: 0;
-    height: 0;
-    border-left: 7rpx solid transparent;
-    border-right: 7rpx solid transparent;
-    border-top: 9rpx solid #0891b2;
-    flex-shrink: 0;
-}
-
-.question-list {
-    display: flex;
-    flex-direction: column;
-    gap: 24rpx;
-    margin-top: 26rpx;
-}
-
-.question-card {
-    padding: 28rpx;
-    border-radius: 34rpx;
-    background: #ffffff;
-    box-shadow: 0 14rpx 34rpx rgba(15, 23, 42, 0.08);
-}
-
-.question-head {
-    display: flex;
-    align-items: center;
-    justify-content: space-between;
-    gap: 18rpx;
-}
-
-.question-index {
-    display: flex;
-    align-items: baseline;
-    gap: 10rpx;
-}
-
-.question-index text:first-child {
-    color: #f97316;
-    font-size: 28rpx;
-    font-weight: 900;
-}
-
-.question-index text:last-child {
-    color: #94a3b8;
-    font-size: 22rpx;
-}
-
-.status-tag {
-    padding: 8rpx 18rpx;
-    border-radius: 999rpx;
-    font-size: 22rpx;
-    font-weight: 800;
-}
-
-.status-tag.new {
-    color: #b45309;
-    background: #fef3c7;
-}
-
-.status-tag.review {
-    color: #0369a1;
-    background: #e0f2fe;
-}
-
-.status-tag.mastered {
-    color: #15803d;
-    background: #dcfce7;
-}
-
-.exam-name {
-    margin-top: 18rpx;
-    color: #164e63;
-    font-size: 26rpx;
-    font-weight: 900;
-    line-height: 1.45;
-}
-
-.question-title {
-    margin-top: 20rpx;
-    color: #0f172a;
-    font-size: 28rpx;
-    font-weight: 700;
-    line-height: 1.65;
-}
-
-.question-title :deep(image),
-.option-value :deep(image),
-.info-content :deep(image) {
-    max-width: 100%;
-    height: auto;
-}
-
-.option-list {
-    margin-top: 16rpx;
-    display: flex;
-    flex-direction: column;
-    gap: 10rpx;
-}
-
-.option-item {
-    display: flex;
-    align-items: flex-start;
-    gap: 12rpx;
-    color: #334155;
-    font-size: 25rpx;
-    line-height: 1.55;
-}
-
-.option-key {
-    color: #0f172a;
-    font-weight: 900;
-}
-
-.option-value {
-    flex: 1;
-    min-width: 0;
-}
-
-.answer-tabs {
-    display: grid;
-    grid-template-columns: repeat(3, 1fr);
-    margin-top: 24rpx;
-    border-top: 2rpx solid #f1f5f9;
-}
-
-.answer-tab {
-    min-height: 76rpx;
-    display: flex;
-    align-items: center;
-    justify-content: center;
-    color: #64748b;
-    font-size: 24rpx;
-    font-weight: 800;
-}
-
-.answer-tab.active {
-    color: #0891b2;
-}
-
-.answer-tab.action {
-    color: #475569;
-}
-
-.info-box {
-    margin-top: 12rpx;
-    padding: 20rpx;
-    border: 2rpx solid transparent;
-    border-radius: 22rpx;
-}
-
-.info-box.mine {
-    border-color: #fde68a;
-    background: #fffbeb;
-}
-
-.info-box.correct {
-    border-color: #bbf7d0;
-    background: #f0fdf4;
-}
-
-.info-box.analysis {
-    border-color: #bae6fd;
-    background: #f0f9ff;
-}
-
-.info-box.knowledge {
-    border-color: #fde68a;
-    background: #fffbeb;
-}
-
-.info-title {
-    margin-bottom: 10rpx;
-    color: #164e63;
-    font-size: 23rpx;
-    font-weight: 900;
-}
-
-.info-content {
-    color: #334155;
-    font-size: 25rpx;
-    line-height: 1.6;
-}
-
-.card-actions {
-    display: flex;
-    gap: 16rpx;
-    margin-top: 22rpx;
-}
-
-.mark-btn,
-.practice-btn {
-    flex: 1;
-    height: 72rpx;
-    border-radius: 22rpx;
-    display: flex;
-    align-items: center;
-    justify-content: center;
-    font-size: 24rpx;
-    font-weight: 900;
-}
-
-.mark-btn {
-    color: #0891b2;
-    background: #ecfeff;
-}
-
-.practice-btn {
-    color: #ffffff;
-    background: linear-gradient(180deg, #22c55e 0%, #16a34a 100%);
-    box-shadow: 0 10rpx 18rpx rgba(22, 163, 74, 0.18);
-}
-
-.empty-wrap,
 .loading-wrap {
     height: 560rpx;
 }
 
-.home-float {
-    position: fixed;
-    right: 32rpx;
-    bottom: 144rpx;
-    z-index: 10;
-    width: 88rpx;
-    height: 88rpx;
-    border-radius: 50%;
+.error-wrap {
+    height: 560rpx;
     display: flex;
+    flex-direction: column;
     align-items: center;
     justify-content: center;
-    background: linear-gradient(180deg, #38bdf8, #0284c7);
-    box-shadow: 0 12rpx 24rpx rgba(2, 132, 199, 0.28);
+    gap: 20rpx;
 }
 
-.home-roof {
-    position: absolute;
-    top: 27rpx;
-    width: 32rpx;
-    height: 32rpx;
-    border-left: 5rpx solid #ffffff;
-    border-top: 5rpx solid #ffffff;
-    transform: rotate(45deg);
-}
-
-.home-body {
-    width: 34rpx;
-    height: 28rpx;
-    margin-top: 20rpx;
-    border: 5rpx solid #ffffff;
-    border-top: 0;
-    border-radius: 0 0 6rpx 6rpx;
-}
-
-.bottom-bar {
-    position: fixed;
-    left: 0;
-    right: 0;
-    bottom: 0;
-    z-index: 9;
-    padding: 18rpx 24rpx calc(18rpx + env(safe-area-inset-bottom));
-    background: rgba(255, 255, 255, 0.94);
-    box-shadow: 0 -10rpx 24rpx rgba(15, 23, 42, 0.08);
-}
-
-.download-btn {
-    height: 84rpx;
-    border-radius: 22rpx;
+.retry-btn {
+    min-width: 220rpx;
+    height: 72rpx;
+    padding: 0 32rpx;
+    border-radius: 999rpx;
     display: flex;
     align-items: center;
     justify-content: center;
     color: #ffffff;
-    background: linear-gradient(180deg, #38bdf8 0%, #0284c7 100%);
-    font-size: 28rpx;
-    font-weight: 900;
+    font-size: 24rpx;
+    font-weight: 700;
+    background: linear-gradient(180deg, #22d3ee 0%, #0891b2 100%);
+    box-shadow: 0 10rpx 18rpx rgba(8, 145, 178, 0.2);
 }
 
 .safe-bottom {
-    height: 150rpx;
+    height: 48rpx;
 }
 </style>
diff --git a/src/pages/wrong/list.vue b/src/pages/wrong/list.vue
new file mode 100644
index 0000000..bee1539
--- /dev/null
+++ b/src/pages/wrong/list.vue
@@ -0,0 +1,482 @@
+<template>
+    <view class="wrong-list-page">
+        <scroll-view class="page-scroll" scroll-y :show-scrollbar="false" @scrolltolower="loadMore">
+            <view class="content">
+                <view class="filter-row">
+                    <picker
+                        class="filter-picker"
+                        :range="timeRangeLabels"
+                        :value="timeRangeIndex"
+                        @change="onTimeRangeChange"
+                    >
+                        <view class="filter-pill">
+                            <text>{{ timeRangeLabels[timeRangeIndex] }}</text>
+                            <view class="filter-arrow"></view>
+                        </view>
+                    </picker>
+                </view>
+
+                <view v-if="listLoading" class="loading-wrap">
+                    <xy-Empty type="loading" content="正在整理错题..." />
+                </view>
+
+                <view v-else-if="wrongQuestions.length" class="question-list">
+                    <view v-for="item in wrongQuestions" :key="item.id" class="question-card">
+                        <view class="question-main" @click="toggleExpand(item)">
+                            <view class="question-preview rich-content">
+                                <rich-text :nodes="item.previewHtml" />
+                            </view>
+                            <view class="meta-row">
+                                <view class="meta-item">
+                                    <text class="meta-label">错误次数</text>
+                                    <text class="meta-value error-count">{{ item.errorCount ?? 0 }}</text>
+                                </view>
+                                <view class="meta-item">
+                                    <text class="meta-label">首次错误</text>
+                                    <text class="meta-value">{{ item.firstErrorTimeText }}</text>
+                                </view>
+                                <view class="meta-item">
+                                    <text class="meta-label">最近错误</text>
+                                    <text class="meta-value">{{ item.lastErrorTimeText }}</text>
+                                </view>
+                            </view>
+                            <view class="card-head-actions">
+                                <view class="expand-arrow" :class="{ expanded: item.expanded }"></view>
+                            </view>
+                        </view>
+
+                        <view v-if="item.expanded && item.questionTitle" class="expand-section">
+                            <view v-if="item.questionTitle.typeName" class="expand-item">
+                                <text class="expand-label">题型</text>
+                                <text class="expand-value">{{ item.questionTitle.typeName }}</text>
+                            </view>
+                            <view v-if="item.questionTitle.difficultyLevel" class="expand-item">
+                                <text class="expand-label">难度</text>
+                                <text class="expand-value">{{ item.questionTitle.difficultyLevel }}</text>
+                            </view>
+                            <view v-if="item.questionTitle.score" class="expand-item">
+                                <text class="expand-label">分值</text>
+                                <text class="expand-value">{{ item.questionTitle.score }}分</text>
+                            </view>
+                            <view v-if="item.questionTitle.submitAnswer" class="expand-item full">
+                                <text class="expand-label">提交答案</text>
+                                <text class="expand-value submit-answer">{{ item.questionTitle.submitAnswer }}</text>
+                            </view>
+                            <view v-if="item.expandContent?.stemHtml" class="expand-item full">
+                                <text class="expand-label">题干</text>
+                                <view class="expand-value rich-content">
+                                    <rich-text :nodes="item.expandContent.stemHtml" />
+                                </view>
+                            </view>
+                            <view v-if="item.expandContent?.parsedOptions?.length" class="expand-item full">
+                                <text class="expand-label">选项</text>
+                                <view class="expand-value rich-content">
+                                    <view
+                                        v-for="opt in item.expandContent.parsedOptions"
+                                        :key="opt.index"
+                                        class="option-item"
+                                    >
+                                        <text class="option-index">{{ opt.index }}.</text>
+                                        <view class="option-html">
+                                            <rich-text :nodes="opt.html" />
+                                        </view>
+                                    </view>
+                                </view>
+                            </view>
+                            <view
+                                v-else-if="item.expandContent?.optionHtmlFallback"
+                                class="expand-item full"
+                            >
+                                <text class="expand-label">选项</text>
+                                <view class="expand-value rich-content">
+                                    <rich-text :nodes="item.expandContent.optionHtmlFallback" />
+                                </view>
+                            </view>
+                            <view v-if="item.expandContent?.answerHtml" class="expand-item full">
+                                <text class="expand-label">正确答案</text>
+                                <view class="expand-value answer-text rich-content">
+                                    <rich-text :nodes="item.expandContent.answerHtml" />
+                                </view>
+                            </view>
+                            <view v-if="item.expandContent?.explanationHtml" class="expand-item full">
+                                <text class="expand-label">解析</text>
+                                <view class="expand-value rich-content">
+                                    <rich-text :nodes="item.expandContent.explanationHtml" />
+                                </view>
+                            </view>
+                        </view>
+                    </view>
+                </view>
+
+                <view v-else class="empty-wrap">
+                    <xy-Empty type="learn" :content="emptyText" />
+                </view>
+
+                <view v-if="loadingMore" class="load-more">加载中...</view>
+            </view>
+
+            <view class="safe-bottom"></view>
+        </scroll-view>
+    </view>
+</template>
+
+<script setup lang="ts">
+import { computed, ref } from 'vue';
+import { onLoad } from '@dcloudio/uni-app';
+import { useParentStore } from '@/state/modules/parent';
+import {
+    TIME_RANGE_OPTIONS,
+    ensureExpandContent,
+    fetchWrongQuestionPage,
+    getTimeRange,
+    resolveWrongUserId,
+    type WrongQuestion,
+} from './shared';
+
+const parentStore = useParentStore();
+const listLoading = ref(false);
+const loadingMore = ref(false);
+const hasMore = ref(true);
+const currentPage = ref(1);
+const wrongQuestions = ref<WrongQuestion[]>([]);
+const selectedSubject = ref('');
+const selectedSubjectId = ref('');
+const cachedUserId = ref('');
+const timeRange = ref('');
+const emptyText = ref('暂无错题');
+
+const timeRangeLabels = TIME_RANGE_OPTIONS.map((item) => item.label);
+const timeRangeIndex = computed(() => {
+    const idx = TIME_RANGE_OPTIONS.findIndex((item) => item.value === timeRange.value);
+    return idx >= 0 ? idx : 0;
+});
+
+const onTimeRangeChange = (e: any) => {
+    const index = Number(e.detail.value);
+    timeRange.value = TIME_RANGE_OPTIONS[index]?.value ?? '';
+    initList();
+};
+
+const toggleExpand = (item: WrongQuestion) => {
+    if (!item.expanded) {
+        ensureExpandContent(item);
+    }
+    item.expanded = !item.expanded;
+};
+
+const getUserId = async () => {
+    if (cachedUserId.value) return cachedUserId.value;
+    const userId = parentStore.activeChild.id
+        || parentStore.activeChildId
+        || await resolveWrongUserId();
+    cachedUserId.value = userId;
+    return userId;
+};
+
+const fetchQuestions = async (append = false) => {
+    const userId = await getUserId();
+    if (!userId) {
+        wrongQuestions.value = [];
+        hasMore.value = false;
+        emptyText.value = '未找到孩子信息，请先绑定孩子';
+        return;
+    }
+
+    const page = append ? currentPage.value : 1;
+    const { startTime, endTime } = getTimeRange(timeRange.value);
+    const { rows, totalRows } = await fetchWrongQuestionPage({
+        userId,
+        subjectId: selectedSubjectId.value || undefined,
+        current: page,
+        startTime,
+        endTime,
+    });
+
+    if (append) {
+        const exists = new Set(wrongQuestions.value.map((item) => item.id));
+        wrongQuestions.value = wrongQuestions.value.concat(
+            rows.filter((item: WrongQuestion) => !exists.has(item.id)),
+        );
+    } else {
+        wrongQuestions.value = rows;
+    }
+    hasMore.value = wrongQuestions.value.length < totalRows;
+};
+
+const initList = async () => {
+    if (listLoading.value) return;
+    listLoading.value = true;
+    currentPage.value = 1;
+    hasMore.value = true;
+    try {
+        await fetchQuestions(false);
+        emptyText.value = wrongQuestions.value.length ? '' : '暂无错题';
+    } catch (err) {
+        console.error('[wrong/list] load failed', err);
+        wrongQuestions.value = [];
+        emptyText.value = '网络出问题了啦～';
+        hasMore.value = false;
+    } finally {
+        listLoading.value = false;
+    }
+};
+
+const loadMore = async () => {
+    if (listLoading.value || loadingMore.value || !hasMore.value) return;
+    loadingMore.value = true;
+    currentPage.value += 1;
+    try {
+        await fetchQuestions(true);
+    } catch {
+        currentPage.value -= 1;
+    } finally {
+        loadingMore.value = false;
+    }
+};
+
+onLoad((options) => {
+    const subject = options?.subject ? decodeURIComponent(options.subject) : '';
+    selectedSubject.value = subject;
+    selectedSubjectId.value = options?.subjectId ? String(options.subjectId) : '';
+    cachedUserId.value = options?.userId ? String(options.userId) : '';
+    const title = subject ? `${subject}错题` : '错题列表';
+    uni.setNavigationBarTitle({ title });
+    timeRange.value = '';
+    initList();
+});
+</script>
+
+<style lang="scss" scoped>
+.wrong-list-page {
+    min-height: 100vh;
+    background: #f8fafc;
+}
+
+.page-scroll {
+    height: 100vh;
+}
+
+.content {
+    padding: 24rpx 28rpx 0;
+}
+
+.filter-row {
+    display: flex;
+}
+
+.filter-picker {
+    min-width: 0;
+    flex: 1;
+}
+
+.filter-pill {
+    height: 70rpx;
+    padding: 0 16rpx;
+    border: 2rpx solid #e2e8f0;
+    border-radius: 22rpx;
+    display: flex;
+    align-items: center;
+    justify-content: center;
+    gap: 8rpx;
+    color: #334155;
+    background: rgba(255, 255, 255, 0.95);
+    font-size: 22rpx;
+    font-weight: 700;
+}
+
+.filter-pill text {
+    overflow: hidden;
+    text-overflow: ellipsis;
+    white-space: nowrap;
+}
+
+.filter-arrow {
+    width: 0;
+    height: 0;
+    border-left: 7rpx solid transparent;
+    border-right: 7rpx solid transparent;
+    border-top: 9rpx solid #0891b2;
+    flex-shrink: 0;
+}
+
+.question-list {
+    display: flex;
+    flex-direction: column;
+    gap: 24rpx;
+    margin-top: 26rpx;
+}
+
+.question-card {
+    border-radius: 34rpx;
+    background: #ffffff;
+    box-shadow: 0 14rpx 34rpx rgba(15, 23, 42, 0.08);
+    overflow: hidden;
+}
+
+.question-main {
+    padding: 28rpx;
+}
+
+.question-preview {
+    color: #0f172a;
+    font-size: 28rpx;
+    font-weight: 700;
+    line-height: 1.65;
+    display: -webkit-box;
+    -webkit-line-clamp: 2;
+    -webkit-box-orient: vertical;
+    overflow: hidden;
+}
+
+.question-preview :deep(image),
+.rich-content :deep(image),
+.option-html :deep(image) {
+    max-width: 100%;
+    height: auto;
+}
+
+.rich-content :deep(.formula-text) {
+    font-family: 'Times New Roman', 'STIXGeneral', Georgia, serif;
+    font-style: italic;
+}
+
+.rich-content :deep(.formula-img) {
+    max-width: 100%;
+    vertical-align: middle;
+}
+
+.meta-row {
+    display: grid;
+    grid-template-columns: repeat(3, 1fr);
+    gap: 12rpx;
+    margin-top: 22rpx;
+}
+
+.meta-item {
+    padding: 16rpx 12rpx;
+    border-radius: 18rpx;
+    background: #f8fafc;
+    text-align: center;
+}
+
+.meta-label {
+    display: block;
+    color: #94a3b8;
+    font-size: 20rpx;
+}
+
+.meta-value {
+    display: block;
+    margin-top: 6rpx;
+    color: #334155;
+    font-size: 22rpx;
+    font-weight: 700;
+}
+
+.error-count {
+    color: #e64340;
+    font-size: 28rpx;
+    font-weight: 900;
+}
+
+.card-head-actions {
+    display: flex;
+    align-items: center;
+    justify-content: flex-end;
+    margin-top: 22rpx;
+}
+
+.expand-arrow {
+    width: 0;
+    height: 0;
+    border-left: 10rpx solid transparent;
+    border-right: 10rpx solid transparent;
+    border-top: 12rpx solid #94a3b8;
+    transition: transform 0.25s ease;
+}
+
+.expand-arrow.expanded {
+    transform: rotate(180deg);
+}
+
+.expand-section {
+    padding: 0 28rpx 28rpx;
+    border-top: 2rpx solid #f1f5f9;
+}
+
+.expand-item {
+    display: flex;
+    align-items: flex-start;
+    gap: 16rpx;
+    margin-top: 20rpx;
+}
+
+.expand-item.full {
+    flex-direction: column;
+    gap: 10rpx;
+}
+
+.expand-label {
+    flex-shrink: 0;
+    width: 120rpx;
+    color: #94a3b8;
+    font-size: 22rpx;
+    font-weight: 700;
+}
+
+.expand-item.full .expand-label {
+    width: auto;
+}
+
+.expand-value {
+    flex: 1;
+    min-width: 0;
+    color: #334155;
+    font-size: 24rpx;
+    line-height: 1.6;
+}
+
+.submit-answer {
+    color: #e64340;
+    font-weight: 700;
+}
+
+.answer-text {
+    color: #15803d;
+    font-weight: 700;
+}
+
+.option-item {
+    display: flex;
+    align-items: flex-start;
+    gap: 10rpx;
+    margin-bottom: 10rpx;
+}
+
+.option-index {
+    flex-shrink: 0;
+    color: #0891b2;
+    font-weight: 900;
+}
+
+.option-html {
+    flex: 1;
+    min-width: 0;
+}
+
+.empty-wrap,
+.loading-wrap {
+    height: 560rpx;
+}
+
+.load-more {
+    padding: 24rpx 0 12rpx;
+    text-align: center;
+    color: #94a3b8;
+    font-size: 24rpx;
+}
+
+.safe-bottom {
+    height: 48rpx;
+}
+</style>
diff --git a/src/pages/wrong/shared.ts b/src/pages/wrong/shared.ts
new file mode 100644
index 0000000..3c40d09
--- /dev/null
+++ b/src/pages/wrong/shared.ts
@@ -0,0 +1,250 @@
+import {
+    getWrongQuestionFilterPage,
+    getWrongQuestionSummary,
+    type PageResult,
+    type QuestionTitle,
+    type WrongQuestionItem,
+    type WrongQuestionSummaryResult,
+} from '@/api/parent';
+import { formatWrongQuestionHtml } from '@/utils/questionHtml';
+import { useParentStore } from '@/state/modules/parent';
+import { useUserStore } from '@/state/modules/user';
+
+export type { QuestionTitle, WrongQuestionItem };
+
+export interface WrongOption {
+    index: string;
+    html: string;
+}
+
+export interface WrongQuestion extends WrongQuestionItem {
+    expanded: boolean;
+    previewHtml: string;
+    firstErrorTimeText: string;
+    lastErrorTimeText: string;
+    expandContent?: WrongExpandContent;
+}
+
+export interface WrongExpandContent {
+    parsedOptions: WrongOption[] | null;
+    stemHtml: string;
+    optionHtmlFallback: string;
+    answerHtml: string;
+    explanationHtml: string;
+}
+
+export const SUBJECT_TONES = ['blue', 'green', 'orange', 'rose', 'violet'];
+
+export const TIME_RANGE_OPTIONS = [
+    { value: '', label: '全部时间' },
+    { value: 'today', label: '今天' },
+    { value: '7days', label: '近7天' },
+    { value: '30days', label: '近30天' },
+];
+
+export const normalizeHtml = (html?: string, options?: { stripImages?: boolean }) =>
+    formatWrongQuestionHtml(html, options);
+
+export const getPreviewHtml = (item: WrongQuestionItem): string => {
+    if (!item.questionTitle) return '--';
+    const html = item.questionTitle.stemHtml || item.questionTitle.stem || '';
+    if (!html) return '--';
+    return formatWrongQuestionHtml(html, { stripImages: true }) || '--';
+};
+
+export const parseOptions = (optionHtml?: string): WrongOption[] | null => {
+    if (!optionHtml) return null;
+    try {
+        const parsed = typeof optionHtml === 'string' ? JSON.parse(optionHtml) : optionHtml;
+        if (Array.isArray(parsed)) {
+            return parsed.map((item: any) => ({
+                index: item.index || '',
+                html: formatWrongQuestionHtml(item.html || ''),
+            }));
+        }
+    } catch {
+        /* not JSON, fallback to HTML string */
+    }
+    return null;
+};
+
+export const getTimeRange = (rangeKey: string): { startTime?: string; endTime?: string } => {
+    if (!rangeKey) return {};
+    const now = new Date();
+    const endTime = `${now.getFullYear()}-${String(now.getMonth() + 1).padStart(2, '0')}-${String(now.getDate()).padStart(2, '0')} 23:59:59`;
+    let start: Date;
+    if (rangeKey === 'today') {
+        start = now;
+    } else if (rangeKey === '7days') {
+        start = new Date(now.getTime() - 6 * 86400000);
+    } else {
+        start = new Date(now.getTime() - 29 * 86400000);
+    }
+    const startTime = `${start.getFullYear()}-${String(start.getMonth() + 1).padStart(2, '0')}-${String(start.getDate()).padStart(2, '0')} 00:00:00`;
+    return { startTime, endTime };
+};
+
+export const formatWrongTime = (time?: string) => {
+    if (!time) return '--';
+    return time.replace('T', ' ').slice(0, 16);
+};
+
+export const getPreviewText = (item: WrongQuestionItem): string => {
+    const html = item.questionTitle?.stemHtml || item.questionTitle?.stem || '';
+    if (!html) return '--';
+    return html.replace(/<[^>]+>/g, '').replace(/\s+/g, ' ').trim().slice(0, 120) || '--';
+};
+
+export const createWrongQuestionShell = (item: WrongQuestionItem): WrongQuestion => ({
+    ...item,
+    expanded: false,
+    previewHtml: getPreviewText(item),
+    firstErrorTimeText: formatWrongTime(item.firstErrorTime),
+    lastErrorTimeText: formatWrongTime(item.lastErrorTime),
+});
+
+export const hydrateWrongQuestionPreview = (item: WrongQuestion) => {
+    try {
+        item.previewHtml = getPreviewHtml(item);
+    } catch (err) {
+        console.error('[wrong] preview hydrate failed', err);
+        item.previewHtml = getPreviewText(item);
+    }
+};
+
+export const mapWrongQuestionItem = (item: WrongQuestionItem): WrongQuestion => ({
+    ...createWrongQuestionShell(item),
+    previewHtml: getPreviewHtml(item),
+});
+
+export const ensureExpandContent = (item: WrongQuestion) => {
+    if (item.expandContent || !item.questionTitle) return;
+    const qt = item.questionTitle;
+    try {
+        item.expandContent = {
+            parsedOptions: parseOptions(qt.optionHtml),
+            stemHtml: normalizeHtml(qt.stemHtml || qt.stem),
+            optionHtmlFallback: normalizeHtml(qt.optionHtml),
+            answerHtml: normalizeHtml(qt.answerHtml || qt.answer),
+            explanationHtml: normalizeHtml(qt.explanation),
+        };
+    } catch (err) {
+        console.error('[wrong] expand content failed', err);
+        item.expandContent = {
+            parsedOptions: null,
+            stemHtml: getPreviewText(item),
+            optionHtmlFallback: '',
+            answerHtml: String(qt.answer || qt.answerHtml || ''),
+            explanationHtml: String(qt.explanation || ''),
+        };
+    }
+};
+
+export const normalizeWrongQuestionPage = (
+    data: WrongQuestionItem[] | PageResult<WrongQuestionItem> | null | undefined,
+    page = 1,
+) => {
+    if (!data) {
+        return { rows: [] as WrongQuestionItem[], totalRows: 0, current: page };
+    }
+    if (Array.isArray(data)) {
+        return { rows: data, totalRows: data.length, current: page };
+    }
+    const rows = data.rows || data.records || [];
+    return {
+        rows,
+        totalRows: data.totalRows ?? rows.length,
+        current: data.current ?? page,
+    };
+};
+
+export const WRONG_LIST_PAGE_SIZE = 10;
+
+export const resolveWrongUserId = async () => {
+    const userStore = useUserStore();
+    const parentStore = useParentStore();
+
+    if (parentStore.activeChild.id) {
+        return parentStore.activeChild.id;
+    }
+    if (parentStore.activeChildId) {
+        return parentStore.activeChildId;
+    }
+
+    try {
+        if (!userStore.userInfo.id) {
+            await userStore.fetchParentUserInfo();
+        }
+        if (userStore.userInfo.id) {
+            await parentStore.fetchBindChildren(userStore.userInfo.id);
+        }
+    } catch {
+        /* ignore */
+    }
+
+    if (parentStore.activeChild.id) {
+        return parentStore.activeChild.id;
+    }
+
+    try {
+        if (!userStore.userInfo.id) {
+            await userStore.fetchUserInfo();
+        }
+    } catch {
+        /* ignore */
+    }
+
+    return userStore.userInfo.id || '';
+};
+
+export const fetchWrongSummary = async (): Promise<WrongQuestionSummaryResult | null> => {
+    const userId = await resolveWrongUserId();
+    if (!userId) return null;
+
+    try {
+        const res = await getWrongQuestionSummary({ userId });
+        return res.data || null;
+    } catch (err) {
+        console.error('[wrong] summary err', err);
+        return null;
+    }
+};
+
+export const fetchWrongQuestionPage = async (params: {
+    userId?: string | number;
+    subjectId?: string | number;
+    current?: number;
+    size?: number;
+    startTime?: string;
+    endTime?: string;
+}) => {
+    const current = params.current ?? 1;
+    const res = await getWrongQuestionFilterPage({
+        userId: params.userId,
+        subjectId: params.subjectId,
+        current,
+        size: params.size ?? WRONG_LIST_PAGE_SIZE,
+        startTime: params.startTime,
+        endTime: params.endTime,
+    });
+    const { rows, totalRows } = normalizeWrongQuestionPage(res.data, current);
+    return {
+        rows: rows.map((item: WrongQuestionItem) => mapWrongQuestionItem(item)),
+        totalRows,
+        current,
+    };
+};
+
+export const buildSubjectStatRow = (
+    name: string,
+    stats: { total: number; newCount: number; reviewCount: number; masteredCount: number },
+    index: number,
+) => ({
+    name,
+    shortName: name === '全部' ? '全' : name.slice(0, 1),
+    tone: SUBJECT_TONES[index % SUBJECT_TONES.length],
+    total: stats.total,
+    newCount: stats.newCount,
+    reviewCount: stats.reviewCount,
+    masteredCount: stats.masteredCount,
+});
diff --git a/src/router/Routeinterception.ts b/src/router/Routeinterception.ts
index 00aba05..d7e2486 100644
--- a/src/router/Routeinterception.ts
+++ b/src/router/Routeinterception.ts
@@ -7,7 +7,7 @@ import { getCache } from '@/utils/cache';
 import { getStoredRole } from '@/utils/roleHome';
 
 // 免登录白名单（路由 name）
-const whiteList = ['home', 'login', 'parent-home', 'parent-reports', 'parent-profile'];
+const whiteList = ['home', 'login'];
 
 export function userRouternext(router: Router) {
     router.beforeEach((to, _from, next) => {
diff --git a/src/style/global.scss b/src/style/global.scss
index 29240e6..f3d4507 100644
--- a/src/style/global.scss
+++ b/src/style/global.scss
@@ -1,5 +1,5 @@
 /* ==========================================
-   学小乐 AI · 全局样式
+   灵犀学 AI · 全局样式
    设计风格: Claymorphism (软立体 / 童趣)
    主色: Indigo + Green
    ========================================== */
diff --git a/src/utils/questionHtml.ts b/src/utils/questionHtml.ts
index 7b0908c..77383cf 100644
--- a/src/utils/questionHtml.ts
+++ b/src/utils/questionHtml.ts
@@ -1,6 +1,157 @@
 /** 题目 HTML 处理（与学生端 doWork/Question 保持一致） */
 
 const LATEX_RENDER_URL = 'https://latex.codecogs.com/svg.image?';
+const MAX_FORMAT_CACHE_SIZE = 200;
+const formatCache = new Map<string, string>();
+
+const escapeHtml = (text: string) =>
+    text
+        .replace(/&/g, '&amp;')
+        .replace(/</g, '&lt;')
+        .replace(/>/g, '&gt;')
+        .replace(/"/g, '&quot;');
+
+const extractTagAttr = (tag: string, name: string): string => {
+    const re = new RegExp(`\\b${name}\\s*=\\s*["']((?:\\\\.|[^"'])*)["']`, 'i');
+    const match = tag.match(re);
+    if (!match) return '';
+    return match[1].replace(/\\\\/g, '\\').replace(/\\"/g, '"').replace(/\\'/g, "'");
+};
+
+const stripHtmlTags = (value: string) => String(value || '').replace(/<[^>]+>/g, '');
+
+const decodeHtmlEntities = (value: string) =>
+    String(value || '')
+        .replace(/&nbsp;/gi, ' ')
+        .replace(/&lt;/gi, '<')
+        .replace(/&gt;/gi, '>')
+        .replace(/&quot;/gi, '"')
+        .replace(/&#39;/gi, "'")
+        .replace(/&amp;/gi, '&');
+
+const resolveFormulaSource = (openTag: string, innerHtml = ''): string => {
+    const byAttr = extractTagAttr(openTag, 'data-value') || extractTagAttr(openTag, 'data-latex');
+    if (String(byAttr || '').trim()) return byAttr;
+    const innerText = decodeHtmlEntities(stripHtmlTags(innerHtml)).trim();
+    return innerText;
+};
+
+const trimLatexWrapper = (value: string) => String(value || '').trim().replace(/^\$+/, '').replace(/\$+$/, '');
+
+const renderMathTag = (openTag: string, innerHtml: string): string => {
+    const latexRaw = decodeHtmlEntities(extractTagAttr(openTag, 'latex'));
+    const latex = trimLatexWrapper(latexRaw);
+    if (latex) {
+        return renderFormulaContent(latex);
+    }
+
+    const svgUrlRaw = extractTagAttr(openTag, 'math-svg') || extractTagAttr(openTag, 'src');
+    const svgUrl = String(svgUrlRaw || '').trim().replace(/http:\/\//gi, 'https://');
+    if (svgUrl) {
+        return `<img class="formula-img" src="${svgUrl}" style="height:1.4em;vertical-align:middle;" />`;
+    }
+
+    const text = decodeHtmlEntities(stripHtmlTags(innerHtml)).trim();
+    return renderFormulaContent(text);
+};
+
+const processMathTags = (html: string): string => {
+    if (!html || !/<math\b/i.test(html)) return html;
+    return html.replace(/<math\b[^>]*>[\s\S]*?<\/math>/gi, (tag) => {
+        const openTag = tag.match(/^<math\b[^>]*>/i)?.[0] || '';
+        const innerHtml = tag.replace(/^<math\b[^>]*>/i, '').replace(/<\/math>\s*$/i, '');
+        return renderMathTag(openTag, innerHtml);
+    });
+};
+
+const findMatchingSpanClose = (html: string, fromIndex: number): number => {
+    let depth = 1;
+    const tagRe = /<(\/?)span\b[^>]*>/gi;
+    tagRe.lastIndex = fromIndex;
+    let match;
+    while ((match = tagRe.exec(html)) !== null) {
+        depth += match[1] === '/' ? -1 : 1;
+        if (depth === 0) {
+            return match.index + match[0].length;
+        }
+    }
+    return -1;
+};
+
+const isPlainNumericFormula = (formula: string) =>
+    /^[\-\u2212\uFF0D0-9.+\s(),]+$/.test(formula.trim());
+
+const renderFormulaContent = (formula: string): string => {
+    const trimmed = formula.trim();
+    if (!trimmed) return '';
+    if (isPlainNumericFormula(trimmed)) {
+        return escapeHtml(trimmed);
+    }
+    if (isSimpleFormula(trimmed)) {
+        return simpleFormulaToHtml(trimmed);
+    }
+    const imageUrl = latexToImageUrl(trimmed);
+    return `<img class="formula-img" src="${imageUrl}" style="height:1.4em;vertical-align:middle;" referrerpolicy="no-referrer" loading="lazy" onerror="this.onerror=null;this.outerHTML='<span class=&quot;formula-fallback&quot;>${escapeHtml(trimmed)}</span>';" />`;
+};
+
+const replaceFormulaSpansInHtml = (html: string): string => {
+    if (!html || !html.includes('data-w-e-type')) return html;
+
+    const openRe = /<span\b[^>]*\bdata-w-e-type\s*=\s*["']formula["'][^>]*>/gi;
+    let result = '';
+    let cursor = 0;
+    let match;
+    let guard = 0;
+
+    while ((match = openRe.exec(html)) !== null) {
+        if (guard++ > 500) break;
+        result += html.slice(cursor, match.index);
+        const openTag = match[0];
+        const contentStart = match.index + openTag.length;
+        const closeEnd = findMatchingSpanClose(html, contentStart);
+
+        if (closeEnd === -1) {
+            const formula = resolveFormulaSource(openTag);
+            result += renderFormulaContent(formula);
+            cursor = match.index + openTag.length;
+            openRe.lastIndex = cursor;
+            continue;
+        }
+
+        const innerHtml = html.slice(contentStart, closeEnd - '</span>'.length);
+        const formula = resolveFormulaSource(openTag, innerHtml);
+        result += renderFormulaContent(formula);
+        cursor = closeEnd;
+        openRe.lastIndex = closeEnd;
+    }
+
+    result += html.slice(cursor);
+    return result;
+};
+
+const cleanupFormulaSpanRemnants = (html: string): string => {
+    if (!html) return '';
+    let result = html;
+    let prev = '';
+    let guard = 0;
+    while (result !== prev && guard < 8) {
+        prev = result;
+        result = replaceFormulaSpansInHtml(result);
+        guard += 1;
+    }
+    return result
+        .replace(/<span\b[^>]*\bdata-w-e-type\s*=\s*["']formula["'][^>]*>[\s\S]*?<\/span>/gi, (tag) => {
+            const openTag = tag.match(/^<span\b[^>]*>/i)?.[0] || '';
+            const innerHtml = tag.replace(/^<span\b[^>]*>/i, '').replace(/<\/span>\s*$/i, '');
+            const formula = resolveFormulaSource(openTag, innerHtml);
+            return renderFormulaContent(formula);
+        })
+        .replace(/\sdata-w-e-type\s*=\s*["'][^"']*["']/gi, '')
+        .replace(/\sdata-value\s*=\s*["'][^"']*["']/gi, '')
+        .replace(/\sdata-size\s*=\s*["'][^"']*["']/gi, '')
+        .replace(/\scontenteditable\s*=\s*["'][^"']*["']/gi, '')
+        .replace(/<span\s*><\/span>/gi, '');
+};
 
 export const fixMathSymbolsInHtml = (html: string): string => {
     if (html == null || typeof html !== 'string') return '';
@@ -131,47 +282,68 @@ const simpleFormulaToHtml = (formula: string): string => {
     return `<span class="formula-text" style="font-style:italic;">${text}</span>`;
 };
 
+const processDollarLatex = (text: string): string => {
+    if (!text || !text.includes('$')) return text;
+    return text.replace(/\$(?!\$)([\s\S]+?)\$(?!\$)/g, (_match, formula: string) => {
+        const trimmed = String(formula || '').trim();
+        if (!trimmed) return _match;
+        if (isSimpleFormula(trimmed)) {
+            return simpleFormulaToHtml(trimmed);
+        }
+        const imageUrl = latexToImageUrl(trimmed);
+        return `<img class="formula-img" src="${imageUrl}" style="height:1.4em;vertical-align:middle;" referrerpolicy="no-referrer" loading="lazy" onerror="this.onerror=null;this.outerHTML='<span class=&quot;formula-fallback&quot;>${escapeHtml(trimmed)}</span>';" />`;
+    });
+};
+
 export const processFormula = (html: string): string => {
     if (html == null || typeof html !== 'string') return '';
     if (!html) return '';
-
-    const formulaRegex = /<span\s+((?:[^<>"']+|"[^"]*"|'[^']*')*)data-w-e-type=["']formula["']((?:[^<>"']+|"[^"]*"|'[^']*')*)>[\s\S]*?<\/span>/gi;
-
-    return html.replace(formulaRegex, (match) => {
-        const valueMatch = match.match(/data-value=["']([^"']+)["']/);
-        if (!valueMatch) return match;
-
-        let formula = valueMatch[1]
-            .replace(/\\\\/g, '\\')
-            .replace(/\\"/g, '"')
-            .replace(/\\'/g, "'");
-
-        if (!formula.trim()) return '';
-
-        if (isSimpleFormula(formula)) {
-            return simpleFormulaToHtml(formula);
-        }
-
-        const imageUrl = latexToImageUrl(formula);
-        return `<img class="formula-img" src="${imageUrl}" style="height:1.4em;vertical-align:middle;" />`;
-    });
+    return cleanupFormulaSpanRemnants(html);
 };
 
 export const isHtmlContent = (value: string) => /<[a-z][\s\S]*>/i.test(value);
 
 export const formatQuestionHtml = (title?: string, options?: { stripImages?: boolean }) => {
-    if (!title) return '';
-    let t = String(title);
-    if (options?.stripImages) {
-        t = t.replace(/<img(?![^>]*formula-img)[^>]*\/?>/gi, '');
+    if (title == null || title === '') return '';
+    const cacheKey = `${options?.stripImages ? '1' : '0'}::${String(title)}`;
+    const cached = formatCache.get(cacheKey);
+    if (cached != null) return cached;
+    try {
+        let t = String(title);
+        if (options?.stripImages) {
+            t = t.replace(/<img(?![^>]*formula-img)[^>]*\/?>/gi, '');
+        }
+        t = t.replace(/<u><\/u>/gi, '<u class="fill-blank"></u>');
+        t = t.replace(/http:\/\//gi, 'https://');
+        t = processMathTags(t);
+        t = cleanupFormulaSpanRemnants(t);
+        t = processDollarLatex(t);
+        t = fixMathSymbolsInHtml(t);
+        if (formatCache.size >= MAX_FORMAT_CACHE_SIZE) {
+            const firstKey = formatCache.keys().next().value;
+            if (firstKey) formatCache.delete(firstKey);
+        }
+        formatCache.set(cacheKey, t);
+        return t;
+    } catch (err) {
+        console.error('[questionHtml] format failed', err);
+        const fallback = String(title)
+            .replace(/http:\/\//gi, 'https://')
+            .replace(/<(?![a-zA-Z/!])[^>]*>/g, '')
+            .replace(/<(?![a-zA-Z/!])/g, '&lt;');
+        if (formatCache.size >= MAX_FORMAT_CACHE_SIZE) {
+            const firstKey = formatCache.keys().next().value;
+            if (firstKey) formatCache.delete(firstKey);
+        }
+        formatCache.set(cacheKey, fallback);
+        return fallback;
     }
-    t = t.replace(/<u><\/u>/gi, '<u class="fill-blank"></u>');
-    t = t.replace(/http:\/\//gi, 'https://');
-    t = fixMathSymbolsInHtml(t);
-    t = processFormula(t);
-    return t;
 };
 
+/** 错题详情：与 Web 一致优先保留原始 HTML，仅做 rich-text 兼容转换 */
+export const formatWrongQuestionHtml = (title?: string, options?: { stripImages?: boolean }) =>
+    formatQuestionHtml(title, options);
+
 export const getQuestionStemSource = (item: Record<string, unknown>) => {
     const pid = item.pidTitle ? String(item.pidTitle) : '';
     const stem = String(item.stemHtml || item.titleMu || item.title || item.stem || '');
diff --git a/src/utils/request.ts b/src/utils/request.ts
index 4ea6cee..63c6fba 100644
--- a/src/utils/request.ts
+++ b/src/utils/request.ts
@@ -2,7 +2,7 @@ import Request from 'luch-request';
 import { getCache, removeCache } from '@/utils/cache';
 
 /**
- * 学小乐 AI 通用 HTTP 客户端（基于 luch-request）
+ * 灵犀学 AI 通用 HTTP 客户端（基于 luch-request）
  *
  * - 自动注入 Bearer Token
  * - 自动注入租户头 x-tenant-id