math_cms/resources/views/exam-analysis/pdf-report-v3.blade.php

@php
    $v3 = $v3 ?? [];
    $summary = $v3['summary'] ?? [];
    $radar = $v3['radar'] ?? [];
    $modules = $v3['modules'] ?? [];
    $paths = $v3['paths'] ?? ['keep' => [], 'boost' => [], 'key' => []];
    $overallPlan = $v3['overall_plan'] ?? [];

    $rawPaperId = $paper['id'] ?? $paper['paper_id'] ?? 'unknown';
    preg_match('/paper_(\d{15})/', $rawPaperId, $matches);
    $reportCode = $matches[1] ?? preg_replace('/[^0-9]/', '', (string) $rawPaperId);
    $generateDateTime = now()->format('Y年m月d日 H:i:s');

    $scoreObtained = $summary['score_obtained'] ?? null;
    $scoreTotal = $summary['score_total'] ?? null;
    $scoreRate = $summary['score_rate'] ?? null;
    $averageMastery = $summary['average_mastery'] ?? null;
    $overallLabel = $summary['overall_label'] ?? '待评估';
    $difficultySummary = $summary['difficulty'] ?? [];
    $comparisonSummary = $summary['comparison'] ?? [];
    $overallLabelDetail = $summary['overall_label_detail'] ?? [];
    $historySummary = $comparisonSummary['history'] ?? [];
    $peerSummary = $comparisonSummary['peers'] ?? [];
    $overallScore = isset($overallLabelDetail['composite_score']) ? (float) $overallLabelDetail['composite_score'] : null;
    $overallGrade = (string) ($overallLabelDetail['grade'] ?? 'D');
    $currentPart = (float) ($overallLabelDetail['current_score'] ?? 0);
    $historyPart = (float) ($overallLabelDetail['history_score'] ?? 0);
    $peerPart = (float) ($overallLabelDetail['peer_score'] ?? 0);
    $adjustPart = (float) ($overallLabelDetail['difficulty_adjust'] ?? 0);
    $compositeFormulaResult = (0.50 * $currentPart) + (0.25 * $historyPart) + (0.25 * $peerPart) + $adjustPart;
    $overallBadge = function (string $grade): array {
        return match ($grade) {
            'S' => ['bg' => '#f5f3ff', 'border' => '#6d28d9', 'text' => '#6d28d9', 'class' => 'badge-s'],
            'A' => ['bg' => '#ecfdf3', 'border' => '#22c55e', 'text' => '#166534', 'class' => 'badge-excellent'],
            'B' => ['bg' => '#eff6ff', 'border' => '#3b82f6', 'text' => '#1d4ed8', 'class' => 'badge-good'],
            'C' => ['bg' => '#fff7ed', 'border' => '#f59e0b', 'text' => '#b45309', 'class' => 'badge-average'],
            default => ['bg' => '#fef2f2', 'border' => '#ef4444', 'text' => '#b91c1c', 'class' => 'badge-weak'],
        };
    };
    $overallVisual = $overallBadge((string) $overallGrade);
    $trendVisual = function (string $trend): array {
        return match ($trend) {
            '显著提升' => ['icon' => '▲', 'color' => '#16a34a'],
            '小幅提升' => ['icon' => '↗', 'color' => '#0ea5e9'],
            '基本持平' => ['icon' => '•', 'color' => '#64748b'],
            '小幅回落' => ['icon' => '↘', 'color' => '#f59e0b'],
            '明显回落' => ['icon' => '▼', 'color' => '#ef4444'],
            default => ['icon' => '•', 'color' => '#64748b'],
        };
    };

    $statusColor = function (string $status): string {
        return match ($status) {
            '良好' => '#16a34a',
            '一般' => '#f97316',
            '薄弱' => '#e11d48',
            default => '#64748b',
        };
    };

    $n = max(1, count($radar));
    $cx = 210;
    $cy = 155;
    $r = 108;
    $outer = [];
    $inner = [];
    for ($i = 0; $i < $n; $i++) {
        $angle = -M_PI / 2 + (2 * M_PI * $i / $n);
        $ox = $cx + $r * cos($angle);
        $oy = $cy + $r * sin($angle);
        $outer[] = [$ox, $oy];

        $value = isset($radar[$i]['value']) ? (float) $radar[$i]['value'] : 0.0;
        $ratio = max(0.0, min(1.0, $value / 5));
        $ix = $cx + $r * $ratio * cos($angle);
        $iy = $cy + $r * $ratio * sin($angle);
        $inner[] = [$ix, $iy];
    }
    $outerPoints = implode(' ', array_map(fn ($p) => round($p[0], 2).','.round($p[1], 2), $outer));
    $innerPoints = implode(' ', array_map(fn ($p) => round($p[0], 2).','.round($p[1], 2), $inner));

    $insightMap = [];
    foreach (($question_insights ?? []) as $insight) {
        $no = $insight['question_number'] ?? $insight['question_id'] ?? null;
        if ($no !== null) {
            $insightMap[$no] = $insight;
        }
    }

    $analysisWrongMap = [];
    foreach (($analysis_data['question_analysis'] ?? []) as $qa) {
        $qid = $qa['question_bank_id'] ?? $qa['question_id'] ?? null;
        if ($qid === null || $qid === '') {
            continue;
        }
        $rawCorrect = $qa['is_correct'] ?? null;
        $isWrongFromAnalysis = false;
        if (is_array($rawCorrect)) {
            $isWrongFromAnalysis = in_array(0, $rawCorrect, true);
        } elseif ($rawCorrect !== null) {
            $isWrongFromAnalysis = !boolval($rawCorrect);
        }
        if ($isWrongFromAnalysis) {
            $analysisWrongMap[(string) $qid] = true;
        }
    }

    $wrongQuestions = [];
    foreach (($questions ?? []) as $qItem) {
        $isCorrectProbe = $qItem['is_correct'] ?? null;
        $studentAnswerProbe = $qItem['student_answer'] ?? null;
        $correctAnswerProbe = $qItem['answer'] ?? ($qItem['correct_answer'] ?? null);
        if ($isCorrectProbe === null && !empty($studentAnswerProbe) && !empty($correctAnswerProbe)) {
            $isCorrectProbe = (trim((string) $studentAnswerProbe) === trim((string) $correctAnswerProbe)) ? 1 : 0;
        }
        $normalizedCorrect = $isCorrectProbe;
        if ($isCorrectProbe !== null) {
            $normalizedCorrect = is_bool($isCorrectProbe) ? ($isCorrectProbe ? 1 : 0) : intval($isCorrectProbe);
        }
        $qidProbe = (string) ($qItem['question_bank_id'] ?? $qItem['question_id'] ?? '');
        $isWrongByAnalysis = ($qidProbe !== '' && isset($analysisWrongMap[$qidProbe]));
        if ($normalizedCorrect === 0 || $isWrongByAnalysis) {
            $wrongQuestions[] = $qItem;
        }
    }

    $kpStats = [];
    foreach (($questions ?? []) as $qItem) {
        $kpName = trim((string) ($qItem['knowledge_point_name'] ?? $qItem['knowledge_point'] ?? '未标注知识点'));
        $kpName = $kpName === '' ? '未标注知识点' : $kpName;
        if (!isset($kpStats[$kpName])) {
            $kpStats[$kpName] = ['total' => 0, 'wrong' => 0];
        }
        $kpStats[$kpName]['total']++;
    }
    foreach ($wrongQuestions as $qItem) {
        $kpName = trim((string) ($qItem['knowledge_point_name'] ?? $qItem['knowledge_point'] ?? '未标注知识点'));
        $kpName = $kpName === '' ? '未标注知识点' : $kpName;
        if (!isset($kpStats[$kpName])) {
            $kpStats[$kpName] = ['total' => 0, 'wrong' => 0];
        }
        $kpStats[$kpName]['wrong']++;
    }
    $kpWrongStats = [];
    foreach ($kpStats as $kpName => $stat) {
        if (($stat['wrong'] ?? 0) <= 0) {
            continue;
        }
        $total = max(1, intval($stat['total'] ?? 0));
        $wrong = intval($stat['wrong'] ?? 0);
        $kpWrongStats[] = [
            'kp_name' => $kpName,
            'wrong' => $wrong,
            'total' => $total,
            'rate' => $wrong / $total,
        ];
    }
    usort($kpWrongStats, function ($a, $b) {
        if ($a['rate'] === $b['rate']) {
            return $b['wrong'] <=> $a['wrong'];
        }
        return $b['rate'] <=> $a['rate'];
    });

@endphp
<!DOCTYPE html>
<html lang="zh-CN">
<head>
    <meta charset="UTF-8">
    <title>学情分析报告</title>
    <link rel="stylesheet" href="/css/katex/katex.min.css">
    <style>
        @page {
            size: A4;
            margin: 2.2cm 2cm 2.3cm 2cm;
            @top-left { content: "知了数学·{{ $generateDateTime }}"; font-size: 13px; color: #666; }
            @top-center { content: "{{ $student['name'] ?? '-' }}"; font-size: 13px; color: #666; }
            @top-right {
                content: "{{ $reportCode }}";
                font-size: 19px;
                font-weight: 600;
                font-family: "Noto Sans", "Liberation Sans", "Nimbus Sans", sans-serif;
                color: #222;
            }
            @bottom-left { content: "{{ $reportCode }}"; font-size: 11px; color: #666; }
            @bottom-right { content: counter(page) "/" counter(pages); font-size: 13px; color: #666; }
        }
        * { box-sizing: border-box; }
        body { font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", sans-serif; margin: 0; color: #0f172a; font-size: 13px; line-height: 1.65; }
        .page { page-break-after: auto; }
        .header { text-align: left; margin-bottom: 16px; }
        .paper-title { font-size: 30px; font-weight: 700; margin-bottom: 8px; color: #0b3a75; letter-spacing: 1px; }
        .section { margin-bottom: 14px; page-break-inside: auto; break-inside: auto; }
        .section-title { font-size: 20px; margin-bottom: 10px; font-weight: 700; color: #0b3a75; border-left: 5px solid #3b82f6; padding-left: 10px; line-height: 1.3; }
        .card { border: 1px solid #dbeafe; border-radius: 12px; padding: 14px; background: #f8fbff; position: relative; }
        .summary-list { margin: 0; padding-left: 18px; }
        .summary-list li { margin: 6px 0; font-size: 13px; }
        .overall-badge {
            position: absolute;
            right: 14px;
            top: 12px;
            border-radius: 12px;
            border: 0;
            padding: 9px 16px;
            min-width: 0;
            width: auto;
            text-align: center;
            position: absolute;
            overflow: hidden;
            display: inline-block;
            white-space: nowrap;
            background: transparent !important;
        }
        .overall-badge .level { font-size: 28px; font-weight: 800; line-height: 1.05; letter-spacing: 1px; }
        .overall-badge .score { font-size: 13px; margin-top: 3px; }
        .overall-badge.badge-s {
            border: 5px solid #6d28d9;
            border-radius: 14px;
            box-shadow: none;
            transform: rotate(-7deg);
        }
        .overall-badge.badge-s::before {
            content: "";
            position: absolute;
            inset: 4px;
            border: 2px dashed rgba(109, 40, 217, 0.65);
            border-radius: 10px;
            pointer-events: none;
        }
        .overall-badge.badge-s .level {
            letter-spacing: 2px;
            text-shadow: 0 1px 0 rgba(109, 40, 217, 0.24);
        }
        .overall-badge.badge-excellent {
            border: 3px double #16a34a;
            border-radius: 999px;
            box-shadow: none;
        }
        .overall-badge.badge-good {
            border: 2px solid #2563eb;
            border-radius: 10px;
            clip-path: polygon(6% 0, 94% 0, 100% 50%, 94% 100%, 6% 100%, 0 50%);
            box-shadow: none;
        }
        .overall-badge.badge-average {
            border: 2px dashed #d97706;
            border-radius: 14px;
            box-shadow: none;
        }
        .overall-badge.badge-weak {
            border-left: 3px solid #ef4444;
            border-right: 0;
            border-top: 0;
            border-bottom: 2px solid #ef4444;
            border-radius: 0 10px 10px 0;
            box-shadow: none;
        }
        .overall-meta { margin-top: 8px; font-size: 9px; color: #64748b; line-height: 1.6; white-space: nowrap; }
        .radar-center { text-align: center; }
        .legend { margin-top: 8px; font-size: 12px; color: #475569; }
        .legend span { margin: 0 8px; }
        .dot { display: inline-block; width: 10px; height: 10px; border-radius: 999px; margin-right: 4px; vertical-align: middle; }
        /* PDF 版优先上下结构，避免左右分栏导致拥挤 */
        .radar-split { display: block; width: 100%; }
        .radar-left { width: 100%; text-align: center; }
        .radar-right { width: 100%; padding-left: 0; margin-top: 10px; }
        .radar-desc { border: 1px solid #dbeafe; background: #f8fbff; border-radius: 12px; padding: 12px; text-align: left; }
        .radar-item { display: block; margin: 6px 0; font-size: 12px; }
        .kp-burst-card { margin-top: 10px; border: 1px solid #dbeafe; border-radius: 12px; padding: 10px; background: #fff; }
        .kp-burst-title { font-size: 13px; font-weight: 700; margin-bottom: 6px; color: #0b3a75; }
        .kp-burst-meta { font-size: 12px; color: #334155; margin-top: 6px; line-height: 1.6; }
        .kp-burst-list { margin-top: 6px; font-size: 11px; color: #334155; line-height: 1.5; }
        .kp-burst-list span { display: inline-block; margin-right: 10px; margin-bottom: 3px; }
        table { width: 100%; border-collapse: collapse; font-size: 12px; background: #fff; }
        th, td { border: 1px solid #d0d7e2; padding: 8px 10px; text-align: left; vertical-align: top; }
        th { background: #f1f5f9; color: #1e293b; font-weight: 700; }
        .badge { display: inline-block; padding: 2px 8px; border-radius: 999px; color: #fff; font-size: 11px; font-weight: 600; }
        .path-stack { display: block; }
        .path-box { border: 1px solid #e5e7eb; border-radius: 12px; padding: 12px 14px; margin-bottom: 10px; }
        .path-box.keep { background: #f0fdf4; border-color: #86efac; }
        .path-box.boost { background: #fff7ed; border-color: #fdba74; }
        .path-box.key { background: #fff1f2; border-color: #fda4af; }
        .path-title { font-size: 16px; font-weight: 700; margin-bottom: 6px; color: #111827; }
        .path-box ul { margin: 0; padding-left: 16px; }
        .path-box li { font-size: 13px; margin: 2px 0; }
        .plan { background: #eef4ff; border-left: 4px solid #3b82f6; border-radius: 12px; padding: 12px 14px; }
        .plan ol { margin: 0; padding-left: 18px; }
        .tag { display: inline-block; padding: 2px 8px; border-radius: 999px; font-size: 11px; color: #334155; background: #e5e7eb; }
        .error-kp-tag { display: inline-block; margin: 0 6px 6px 0; padding: 1px 7px; border-radius: 999px; font-size: 10px; color: #334155; background: #f8fafc; border: 1px solid #d1d5db; }
        .error-kp-tag.high-risk { color: #b91c1c; border-color: #fca5a5; background: #fff; font-weight: 600; }
        .question-card { border:1px solid #e5e7eb; border-radius:8px; padding:6px 9px; margin-bottom:5px; background:#fff; page-break-inside:auto; break-inside:auto; }
        .question-block { margin-bottom: 5px; padding: 5px; border-radius: 4px; page-break-inside: auto; break-inside: auto; }
        .question-card,
        .question-card .math-content,
        .question-card .solution-content { font-size: 12px; line-height: 1.7; }
        .question-card .question-stem svg,
        .question-card .math-content svg { max-width: 100%; height: auto; display: block; shape-rendering: geometricPrecision; text-rendering: geometricPrecision; }
        .question-card .question-stem svg text {
            font-family: "Noto Serif", "Noto Serif CJK SC", "Noto Sans CJK SC", "Noto Sans", "STSongti-SC", "PingFang SC", "Songti SC", serif !important;
            font-size: 13px !important;
            font-weight: bold;
            dominant-baseline: middle;
            text-anchor: middle;
        }
        .question-card .question-stem svg circle,
        .question-card .question-stem svg line,
        .question-card .question-stem svg polygon,
        .question-card .question-stem svg polyline { shape-rendering: geometricPrecision; }
        .question-card .question-stem img,
        .question-card .question-main img {
            display: block;
            max-width: 220px;
            max-height: 60mm;
            width: auto;
            height: auto;
            margin: 6px auto;
            box-sizing: border-box;
            object-fit: contain;
            -webkit-print-color-adjust: exact;
            print-color-adjust: exact;
            image-rendering: -webkit-optimize-contrast;
        }
        .question-card .question-stem .katex { font-size: 1em !important; vertical-align: 0; }
        .question-card .question-stem .katex-display { margin: 0.35em 0 !important; }
        .question-card .solution-content img,
        .question-card .report-answer-meta img {
            display: block;
            max-width: 220px;
            max-height: 60mm;
            width: auto;
            height: auto;
            margin: 6px auto;
            object-fit: contain;
            -webkit-print-color-adjust: exact;
            print-color-adjust: exact;
        }
        .solution-content {
            display: block;
            line-height: 1.75;
            white-space: normal;
            word-break: break-word;
            overflow-wrap: anywhere;
            page-break-inside: auto;
            break-inside: auto;
        }
        .report-options { margin-top: 6px; page-break-inside: auto; break-inside: auto; }
        .report-options.options-grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 8px 12px; }
        .report-options.options-grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 8px 20px; }
        .report-options.options-grid-1 { display: grid; grid-template-columns: 1fr; gap: 8px; }
        .report-options .option { display: flex; align-items: baseline; font-size: 12px; line-height: 1.6; page-break-inside: auto; break-inside: auto; }
        .report-options .option strong { margin-right: 4px; flex: 0 0 auto; }
        .report-options .option-value.option-short { white-space: nowrap; }
        .report-options .option-value.option-long { white-space: normal; word-break: break-word; }
        .report-options .option p, .report-options .option div { margin: 0; display: inline; }
        .report-options .option img { max-width: 100%; height: auto; vertical-align: middle; }
        .report-answer-meta { font-size: 12px; color: #2f2f2f; line-height: 1.75; margin-top: 6px; page-break-inside: auto; break-inside: auto; }
        .report-answer-meta .answer-line + .answer-line { margin-top: 4px; }
        .report-answer-meta .solution-content { display: inline; line-height: 1.75; }
        .muted { color: #6b7280; font-size: 12px; }
    </style>
</head>
<body>
<div class="page">
    <div class="header">
        <h1 class="paper-title">学情分析报告</h1>
    </div>

    <div class="section">
        <div class="section-title">一、总体评估</div>
        <div class="card">
            <div class="overall-badge {{ $overallVisual['class'] ?? '' }}"
                 style="border-color:{{ $overallVisual['border'] }}; color:{{ $overallVisual['text'] }};">
                <div class="level">{{ $overallGrade }}</div>
            </div>
            <ul class="summary-list">
                <li>本次诊断得分：
                    @if($scoreObtained !== null && $scoreTotal !== null && $scoreTotal > 0)
                        {{ rtrim(rtrim(number_format((float) $scoreObtained, 1), '0'), '.') }}/{{ rtrim(rtrim(number_format((float) $scoreTotal, 1), '0'), '.') }}
                    @else
                        暂无得分数据
                    @endif
                </li>
                <li>得分率：{{ $scoreRate !== null ? number_format((float) $scoreRate * 100, 1) . '%' : '暂无得分率' }}</li>
                <li>平均掌握度：{{ $averageMastery !== null ? number_format((float) $averageMastery * 100, 1) . '%' : '暂无掌握度' }}</li>
                <li>
                    难度匹配：
                    @if(!empty($difficultySummary['target_label']) && isset($difficultySummary['actual_average_difficulty']))
                        目标 {{ $difficultySummary['target_label'] }}
                        @if(!empty($difficultySummary['target_range']))
                            （{{ number_format((float)($difficultySummary['target_range']['min'] ?? 0), 2) }}~{{ number_format((float)($difficultySummary['target_range']['max'] ?? 0), 2) }}）
                        @endif
                        ，实际 {{ number_format((float)($difficultySummary['actual_average_difficulty'] ?? 0), 3) }}
                        （{{ $difficultySummary['status'] ?? '暂无' }}）
                    @else
                        暂无难度匹配数据
                    @endif
                </li>
                @if(!empty($difficultySummary['explain']))
                    <li>难度说明：{{ $difficultySummary['explain'] }}</li>
                @endif
                <li>
                    与历史自己对比：
                    @if(!empty($historySummary['is_first_exam']))
                        {{ $historySummary['message'] ?? '这是你的第一次分析报告，先积累样本再看趋势。' }}
                    @elseif(!empty($historySummary['low_baseline_guard']))
                        {{ $historySummary['message'] ?? '历史基线偏低，建议看连续趋势。' }}
                    @elseif(!empty($historySummary['has_data']))
                        @php
                            $trendText = (string)($historySummary['trend'] ?? '—');
                            $tVisual = $trendVisual($trendText);
                        @endphp
                        近几次均值对比：
                        {{ number_format((float)($historySummary['baseline_score_rate'] ?? 0) * 100, 1) }}%，
                        本次{{ ($historySummary['delta_score_rate'] ?? 0) >= 0 ? '提升' : '回落' }}
                        {{ number_format(abs((float)($historySummary['delta_score_rate'] ?? 0)) * 100, 1) }}%
                        （<span style="color:{{ $tVisual['color'] ?? '#64748b' }}; font-weight:600;">{{ $tVisual['icon'] ?? '•' }} {{ $trendText }}</span>）
                    @else
                        {{ $historySummary['message'] ?? '历史样本不足' }}
                    @endif
                </li>
                @if(!empty($peerSummary['show_line']))
                    <li>
                        与同群体对比：
                        {{ $peerSummary['message'] ?? '' }}
                        （<span style="color:{{ $peerSummary['band_color'] ?? '#64748b' }}; font-weight:600;">{{ $peerSummary['band_icon'] ?? '•' }} {{ $peerSummary['band'] ?? '—' }}</span>）
                    </li>
                @endif
                <li>
                    整体水平：
                    @if($overallScore !== null)
                        {{ number_format($overallScore, 1) }} 分（{{ $overallGrade }}）
                    @else
                        待计算
                    @endif
                </li>
            </ul>
            <div class="overall-meta">
                规则：综合分 = 当前50% + 历史25% + 同群体25% + 难度校正，即：(({{ number_format($scoreRate !== null ? (float)$scoreRate * 100 : 0, 1) }}×70% + {{ number_format($averageMastery !== null ? (float)$averageMastery * 100 : 0, 1) }}×30%)×50%) + {{ number_format($historyPart, 1) }}×25% + {{ number_format($peerPart, 1) }}×25% + {{ number_format($adjustPart, 1) }} = {{ number_format($overallScore ?? $compositeFormulaResult, 1) }}
            </div>
        </div>
    </div>

    <div class="section">
        <div class="section-title">二、知识点掌握雷达图</div>
        <div class="radar-split">
            <div class="radar-left">
            <svg width="430" height="320" viewBox="0 0 430 320">
                <polygon points="{{ $outerPoints }}" fill="#f8fafc" stroke="#cbd5e1" stroke-width="1"/>
                <polygon points="{{ $innerPoints }}" fill="rgba(59,130,246,0.28)" stroke="#3b82f6" stroke-width="2"/>
                @foreach($outer as $i => $p)
                    <line x1="{{ $cx }}" y1="{{ $cy }}" x2="{{ round($p[0],2) }}" y2="{{ round($p[1],2) }}" stroke="#e2e8f0" stroke-width="1"/>
                @endforeach
                @foreach($outer as $i => $p)
                    @php
                        $name = $radar[$i]['name'] ?? '';
                        $children = $radar[$i]['children'] ?? [];
                        $labelX = $p[0] + (($p[0] >= $cx) ? 9 : -9);
                        $labelY = $p[1] + (($p[1] >= $cy) ? 12 : -8);
                        $anchor = $p[0] >= $cx ? 'start' : 'end';
                        $dotColor = $statusColor((string) ($radar[$i]['status'] ?? '暂无'));
                        $value = number_format((float) ($radar[$i]['value'] ?? 0), 2);
                        $axisAngle = atan2(($p[1] - $cy), ($p[0] - $cx));
                    @endphp
                    <text x="{{ round($labelX,2) }}" y="{{ round($labelY,2) }}" font-size="11" fill="#334155" text-anchor="{{ $anchor }}">{{ $name }} {{ $value }}</text>
                    <circle cx="{{ round($inner[$i][0],2) }}" cy="{{ round($inner[$i][1],2) }}" r="4" fill="{{ $dotColor }}" />
                    @if(!empty($children))
                        @foreach($children as $cIdx => $child)
                            @php
                                $childN = max(1, count($children));
                                $depth = max(1, intval($child['depth'] ?? 1));
                                $offset = ($cIdx - (($childN - 1) / 2)) * 0.04;
                                $childAngle = $axisAngle + $offset;
                                // 子知识点必须从父轴外圈向外发散，避免父轴值低时挤在中心
                                $axisOuterR = sqrt(pow(($outer[$i][0] - $cx), 2) + pow(($outer[$i][1] - $cy), 2));
                                $startR = max($axisOuterR + 4, 112 + (($depth - 1) * 10));
                                $endR = $startR + 12 + (($depth - 1) * 4);
                                $sx = $cx + $startR * cos($childAngle);
                                $sy = $cy + $startR * sin($childAngle);
                                $ex = $cx + $endR * cos($childAngle);
                                $ey = $cy + $endR * sin($childAngle);
                                $changed = !empty($child['changed']);
                                $cColor = $changed ? '#e11d48' : '#94a3b8';
                                $cWidth = $changed ? 1.5 : 0.8;
                                $masteryPct = isset($child['mastery_level']) ? max(0, min(100, (float) $child['mastery_level'] * 100)) : null;
                                $label = $masteryPct !== null ? number_format($masteryPct, 1) . '%' : '—';
                                $tx = $cx + ($endR + 5 + (($depth - 1) * 2)) * cos($childAngle);
                                $ty = $cy + ($endR + 5 + (($depth - 1) * 2)) * sin($childAngle);
                                $anchor = cos($childAngle) >= 0 ? 'start' : 'end';
                            @endphp
                            <line x1="{{ round($sx,2) }}" y1="{{ round($sy,2) }}" x2="{{ round($ex,2) }}" y2="{{ round($ey,2) }}"
                                  stroke="{{ $cColor }}" stroke-width="{{ $cWidth }}" opacity="{{ $changed ? 0.95 : 0.85 }}"/>
                            <circle cx="{{ round($ex,2) }}" cy="{{ round($ey,2) }}" r="{{ $changed ? 1.6 : 1.0 }}" fill="{{ $cColor }}" />
                            <text x="{{ round($tx,2) }}" y="{{ round($ty,2) }}" font-size="9" fill="{{ $cColor }}" text-anchor="{{ $anchor }}">{{ $label }}</text>
                        @endforeach
                    @endif
                @endforeach
            </svg>
            <div class="legend">
                <span><i class="dot" style="background:#16a34a"></i>良好（4.0-5.0）</span>
                <span><i class="dot" style="background:#f97316"></i>一般（2.0-3.9）</span>
                <span><i class="dot" style="background:#e11d48"></i>薄弱（0-1.9）</span>
                <span><i class="dot" style="background:#64748b"></i>未涉及</span>
                <span><i class="dot" style="background:#94a3b8"></i>子知识点</span>
                <span><i class="dot" style="background:#e11d48"></i>子知识点变化</span>
                <span>外圈越远表示层级越深</span>
            </div>
            </div>
            <div class="radar-right">
            <div class="radar-desc">
                <strong>雷达图解读</strong>
                @foreach($radar as $item)
                    @php $color = $statusColor((string) ($item['status'] ?? '暂无')); @endphp
                    <span class="radar-item">
                        <i class="dot" style="background:{{ $color }}"></i>
                        {{ $item['name'] }}：{{ $item['status'] }}
                        （{{ !empty($item['has_mastery']) ? number_format((float) ($item['value'] ?? 0), 2) . '/5' : '—' }}）
                        @if(!empty($item['children']))
                            ，子知识点 {{ count($item['children']) }} 个
                        @endif
                    </span>
                @endforeach
            </div>
            </div>
        </div>
    </div>

    <div class="section">
        <div class="section-title">三、模块能力分析表</div>
        <table>
            <thead>
            <tr>
                <th style="width: 16%;">模块</th>
                <th style="width: 13%;">掌握分值</th>
                <th style="width: 12%;">掌握状态</th>
                <th style="width: 10%;">样本数</th>
                <th style="width: 12%;">得分率</th>
                <th>学生当前能力</th>
            </tr>
            </thead>
            <tbody>
            @foreach($modules as $m)
                @php
                    $status = (string) ($m['status'] ?? '暂无');
                    $color = $statusColor($status);
                    $rate = $m['exam_score_rate'] ?? null;
                @endphp
                <tr>
                    <td>{{ $m['module_name'] ?? '-' }}</td>
                    <td>{{ $m['mastery_score_5'] !== null ? number_format((float) $m['mastery_score_5'], 2) . '/5' : '-' }}</td>
                    <td><span class="badge" style="background:{{ $color }}">{{ $status }}</span></td>
                    <td>{{ $m['kp_count'] ?? 0 }}</td>
                    <td>{{ $rate !== null ? number_format((float) $rate * 100, 1) . '%' : '-' }}</td>
                    <td>{{ $m['ability_text'] ?? '-' }}</td>
                </tr>
            @endforeach
            </tbody>
        </table>
    </div>

    <div class="section">
        <div class="section-title">四、分模块提分路径</div>
        <div class="path-stack">
            <div class="path-box keep">
                <div class="path-title">保分模块（保持优势）</div>
                <ul>
                    @foreach(($paths['keep'] ?? []) as $item)
                        <li>{{ $item['name'] }}：掌握度 {{ number_format((float) ($item['mastery_level'] ?? 0) * 100, 1) }}%</li>
                    @endforeach
                </ul>
                @if(empty($paths['keep']))
                    <div class="muted">暂无数据</div>
                @endif
            </div>
            <div class="path-box boost">
                <div class="path-title">涨分模块（重点突破）</div>
                <ul>
                    @foreach(($paths['boost'] ?? []) as $item)
                        <li>{{ $item['name'] }}：掌握度 {{ number_format((float) ($item['mastery_level'] ?? 0) * 100, 1) }}%</li>
                    @endforeach
                </ul>
                @if(empty($paths['boost']))
                    <div class="muted">暂无数据</div>
                @endif
            </div>
            <div class="path-box key">
                <div class="path-title">提分关键（优先补短）</div>
                <ul>
                    @foreach(($paths['key'] ?? []) as $item)
                        <li>{{ $item['name'] }}：掌握度 {{ number_format((float) ($item['mastery_level'] ?? 0) * 100, 1) }}%</li>
                    @endforeach
                </ul>
                @if(empty($paths['key']))
                    <div class="muted">暂无数据</div>
                @endif
            </div>
        </div>
    </div>

    <div class="section">
        <div class="section-title">五、整体提升方案</div>
        <div class="plan">
            <ol>
                @foreach($overallPlan as $line)
                    <li>{{ $line }}</li>
                @endforeach
            </ol>
        </div>
    </div>

    @if(!empty($wrongQuestions))
        <div class="section" style="page-break-inside:auto; break-inside:auto;">
            <div class="section-title">六、这次错题记录</div>
            @if(!empty($kpWrongStats))
                <div style="margin-bottom:8px; padding:8px; border:1px solid #e5e7eb; border-radius:6px; background:#f8fafc;">
                    <div style="font-size:12px; font-weight:600; margin-bottom:6px;">知识点错误率</div>
                    <div style="font-size:12px; color:#475569; line-height:1.7;">
                        @foreach($kpWrongStats as $item)
                            <span class="error-kp-tag {{ $item['rate'] > 0.5 ? 'high-risk' : '' }}">{{ $item['kp_name'] }}：{{ $item['wrong'] }}/{{ $item['total'] }}（{{ number_format($item['rate'] * 100, 1) }}%）</span>
                        @endforeach
                    </div>
                </div>
            @endif

            @foreach($wrongQuestions as $q)
                @php
                    $studentAnswer = $q['student_answer'] ?? null;
                    $correctAnswer = $q['answer'] ?? $q['correct_answer'] ?? null;
                    $isCorrect = $q['is_correct'] ?? null;
                    if ($isCorrect === null && !empty($studentAnswer) && !empty($correctAnswer)) {
                        $isCorrect = (trim($studentAnswer) === trim($correctAnswer)) ? 1 : 0;
                    }

                    $statusText = '';
                    $statusColorValue = '';
                    if ($isCorrect === 1) {
                        $statusText = '正确';
                        $statusColorValue = '#10b981';
                    } elseif ($isCorrect === 0) {
                        $statusText = '错误';
                        $statusColorValue = '#ef4444';
                    }
                    $showStatus = $statusText !== '';

                    $insight = $insightMap[$q['question_number']] ?? ($insightMap[$q['display_number'] ?? null] ?? []);
                    $fullScore = $insight['full_score'] ?? ($q['score'] ?? null);
                    if ($isCorrect === 1) {
                        $score = $fullScore;
                    } elseif ($isCorrect === 0) {
                        $score = $q['score_obtained'] ?? 0;
                    } else {
                        $score = null;
                    }
                    $analysisRaw = $insight['analysis']
                        ?? $insight['thinking_process']
                        ?? $insight['feedback']
                        ?? $insight['suggestions']
                        ?? $insight['reason']
                        ?? ($insight['correct_solution'] ?? null);
                    if (empty($analysisRaw) && !empty($insight['next_steps'])) {
                        $analysisRaw = '后续建议：' . (is_array($insight['next_steps']) ? implode('；', $insight['next_steps']) : $insight['next_steps']);
                    }
                    $analysis = is_array($analysisRaw) ? json_encode($analysisRaw, JSON_UNESCAPED_UNICODE) : $analysisRaw;
                    if ($analysis === null || $analysis === '') {
                        $analysis = '暂无解题思路，待补充';
                    }
                    if (is_string($analysis)) {
                        $analysis = preg_replace('/^【?\s*解题思路\s*】?\s*[:：]?\s*/u', '', $analysis);
                    }
                    $formatSolutionLikeGrading = function ($text) {
                        if (!is_string($text) || trim($text) === '') {
                            return $text;
                        }
                        $normalized = preg_replace('/\s*；\s*步骤\s*(\d+)/u', "；\n步骤$1", $text);
                        $normalized = preg_replace('/\s*。\s*步骤\s*(\d+)/u', "。\n步骤$1", $normalized);
                        $normalized = preg_replace('/(?<!^)(步骤\s*\d+\s*[:：])/u', "\n$1", $normalized);
                        $normalized = preg_replace('/(?<!^)(第\s*\d+\s*步\s*[:：]?)/u', "\n$1", $normalized);
                        $normalized = preg_replace('/\n{3,}/u', "\n\n", $normalized);
                        $normalized = preg_replace('/^[\h\x{3000}]+/mu', '', $normalized);
                        return trim($normalized);
                    };
                    $stepsRaw = $insight['steps'] ?? $insight['solution_steps'] ?? $insight['analysis_steps'] ?? null;
                    $steps = [];
                    if (is_array($stepsRaw)) {
                        $steps = $stepsRaw;
                    } elseif (is_string($stepsRaw) && trim($stepsRaw) !== '') {
                        $steps = preg_split('/[\r\n]+/', trim($stepsRaw));
                    }
                    $typeMap = ['choice' => '选择题', 'fill' => '填空题', 'answer' => '解答题'];
                    $typeLabel = $typeMap[$q['question_type'] ?? ''] ?? ($q['question_type'] ?? '题型未标注');
                    $questionText = is_string($q['question_text']) ? $q['question_text'] : json_encode($q['question_text'], JSON_UNESCAPED_UNICODE);
                    $solution = $q['solution'] ?? null;
                    if (is_string($solution)) {
                        $solution = preg_replace('/^【?\s*解题思路\s*】?\s*[:：]?\s*/u', '', $solution);
                    }
                    $solution = $formatSolutionLikeGrading($solution);
                    $analysis = $formatSolutionLikeGrading($analysis);
                    $renderLikeGrading = function ($text) {
                        if (is_array($text)) {
                            $text = json_encode($text, JSON_UNESCAPED_UNICODE);
                        }
                        $text = is_string($text) ? trim($text) : '';
                        if ($text === '') {
                            return '';
                        }
                        // 兼容题库里常见的转义写法：\$x\$、\$\frac{...}\$
                        $text = preg_replace('/\\\\\\$/u', '$', $text);
                        return \App\Services\MathFormulaProcessor::processFormulas($text);
                    };
                    $questionTextRendered = $renderLikeGrading($questionText);
                    $displayCorrectAnswer = is_array($correctAnswer) ? json_encode($correctAnswer, JSON_UNESCAPED_UNICODE) : (string) $correctAnswer;
                    $questionTypeRaw = strtolower(trim((string) ($q['question_type'] ?? '')));
                    $isChoiceQuestion = in_array($questionTypeRaw, ['choice', 'multiple_choice', 'single_choice', '选择题', 'select'], true);
                    $normalizedOptions = [];
                    $correctAnswerLetters = [];
                    if ($isChoiceQuestion) {
                        $rawOptions = $q['options'] ?? [];
                        if (is_string($rawOptions)) {
                            $decodedOptions = json_decode($rawOptions, true);
                            $rawOptions = is_array($decodedOptions) ? $decodedOptions : [];
                        }
                        if (is_array($rawOptions)) {
                            foreach ($rawOptions as $optKey => $optValue) {
                                $letter = null;
                                if (is_string($optKey) && preg_match('/([A-H])/i', $optKey, $m)) {
                                    $letter = strtoupper($m[1]);
                                } elseif (is_array($optValue)) {
                                    $candidate = $optValue['label'] ?? $optValue['key'] ?? $optValue['option'] ?? null;
                                    if (is_string($candidate) && preg_match('/([A-H])/i', $candidate, $m)) {
                                        $letter = strtoupper($m[1]);
                                    }
                                }
                                if ($letter === null) {
                                    continue;
                                }
                                $content = is_array($optValue) ? ($optValue['content'] ?? $optValue['text'] ?? $optValue['value'] ?? '') : $optValue;
                                if (!is_string($content)) {
                                    $content = json_encode($content, JSON_UNESCAPED_UNICODE);
                                }
                                $content = trim((string) $content);
                                if ($content !== '') {
                                    $normalizedOptions[$letter] = $content;
                                }
                            }
                        }
                        if (trim((string) $correctAnswer) !== '') {
                            preg_match_all('/[A-H]/i', strtoupper((string) $correctAnswer), $answerMatches);
                            $correctAnswerLetters = array_values(array_unique($answerMatches[0] ?? []));
                        }
                        if (!empty($normalizedOptions) && !empty($correctAnswerLetters)) {
                            $mappedAnswers = [];
                            foreach ($correctAnswerLetters as $letter) {
                                if (isset($normalizedOptions[$letter])) {
                                    $mappedAnswers[] = $letter . '. ' . $normalizedOptions[$letter];
                                }
                            }
                            if (!empty($mappedAnswers)) {
                                $displayCorrectAnswer = implode('；', $mappedAnswers);
                            }
                        }
                    }
                    $choiceOptionLetters = !empty($normalizedOptions) ? array_keys($normalizedOptions) : [];
                    sort($choiceOptionLetters);
                    $choiceLayoutClass = 'options-grid-1';
                    $layoutDecider = app(\App\Support\OptionLayoutDecider::class);
                    if (! empty($normalizedOptions) && ! empty($choiceOptionLetters)) {
                        $optValuesForLayout = [];
                        foreach ($choiceOptionLetters as $L) {
                            $optValuesForLayout[] = $normalizedOptions[$L];
                        }
                        $layoutMeta = $layoutDecider->decide($optValuesForLayout, 'grading');
                        $choiceLayoutClass = $layoutMeta['class'] ?? 'options-grid-1';
                    }
                @endphp
                <div class="question-card">
                    <div style="display:flex; justify-content:space-between; align-items:center; gap:8px; margin-bottom:4px;">
                        <div style="display:flex; align-items:center; gap:8px; font-weight:600;">
                            <span class="tag">题号 {{ $q['display_number'] ?? $q['question_number'] }} · {{ $typeLabel }}</span>
                            @php
                                $kpName = $q['knowledge_point_name'] ?? $q['knowledge_point'] ?? null;
                                if (!empty($kpName) && $kpName !== '-' && $kpName !== '未标注') {
                                    echo '<span class="tag" style="background: #eef2ff; color:#4338ca;">' . e($kpName) . '</span>';
                                }
                            @endphp
                            @if($showStatus)
                                <span class="tag" style="background: {{ $statusColorValue }}; color:#fff;">{{ $statusText }}</span>
                            @endif
                        </div>
                        @if($score !== null && $fullScore !== null)
                            <div class="muted">得分 {{ $score }} / {{ $fullScore }}</div>
                        @endif
                    </div>

                    <div class="question-stem math-content" style="margin-bottom:6px;">{!! $questionTextRendered !!}</div>

                    @if(!empty($isChoiceQuestion) && !empty($normalizedOptions))
                        <div class="report-options {{ $choiceLayoutClass }}">
                            @foreach($choiceOptionLetters as $optLetter)
                                @php
                                    $isCorrectOpt = in_array($optLetter, $correctAnswerLetters ?? [], true);
                                    $rawOpt = (string) ($normalizedOptions[$optLetter] ?? '');
                                    $normalizedOpt = str_replace('\\dfrac', '\\frac', $rawOpt);
                                    $normalizedOpt = str_replace('\\displaystyle', '', $normalizedOpt);
                                    $normalizedOpt = $layoutDecider->normalizeCompactMathForDisplay($normalizedOpt);
                                    $rawOptPlain = html_entity_decode(strip_tags($rawOpt), ENT_QUOTES | ENT_HTML5, 'UTF-8');
                                    $rawOptPlain = preg_replace('/\s+/u', '', $rawOptPlain ?? '');
                                    $isShortOption = mb_strlen((string) $rawOptPlain, 'UTF-8') <= 8;
                                    $valClass = $isShortOption ? 'option-short' : 'option-long';
                                    $renderedOpt = $renderLikeGrading($normalizedOpt);
                                @endphp
                                <div class="option option-compact">
                                    <strong>{{ $optLetter }}.</strong>
                                    <span class="option-value {{ $valClass }}">{!! $renderedOpt !!}</span>
                                    @if($isCorrectOpt)
                                        <span style="margin-left:4px; font-size:13px; color:#15803d; font-weight:700;">✅</span>
                                    @endif
                                </div>
                            @endforeach
                        </div>
                    @endif

                    @if(!empty($correctAnswer) && (!$isChoiceQuestion || empty($normalizedOptions)))
                        <div class="question-block" style="background:#f0fdf4; border-left:3px solid #10b981;">
                            <div style="font-weight:600; font-size:12px; color:#111827; margin-bottom:3px;">正确答案</div>
                            <div class="math-content" style="line-height:1.7; color:#374151;">
                                {!! $renderLikeGrading($displayCorrectAnswer) !!}
                            </div>
                        </div>
                    @endif

                    @if(!empty($solution))
                        <div class="report-answer-meta">
                            <div class="answer-line">
                                <strong>解题思路：</strong>
                                <span class="solution-content">{!! $renderLikeGrading($solution) !!}</span>
                            </div>
                        </div>
                    @elseif(!empty($analysis) && $analysis !== '暂无解题思路记录')
                        <div class="report-answer-meta">
                            <div class="answer-line">
                                <strong>解题思路：</strong>
                                <span class="solution-content">{!! $renderLikeGrading($analysis) !!}</span>
                            </div>
                        </div>
                    @endif

                    @if(!empty($steps))
                        <div style="margin-top:6px; font-size:12px;">
                            <div style="font-weight:600; margin-bottom:3px;">解题步骤</div>
                            <ol style="margin:0; padding-left:18px;">
                                @foreach($steps as $s)
                                    @php
                                        $stepText = is_array($s) ? json_encode($s, JSON_UNESCAPED_UNICODE) : (string) $s;
                                    @endphp
                                    <li style="margin-bottom:2px;">{!! nl2br($renderLikeGrading($stepText)) !!}</li>
                                @endforeach
                            </ol>
                        </div>
                    @endif
                </div>
            @endforeach
        </div>
    @endif
</div>
<script src="/js/katex.min.js"></script>
<script src="/js/auto-render.min.js"></script>
<script>
    document.addEventListener('DOMContentLoaded', function() {
        try {
            renderMathInElement(document.body, {
                delimiters: [
                    {left: "$$", right: "$$", display: true},
                    {left: "$", right: "$", display: false},
                    {left: "\\(", right: "\\)", display: false},
                    {left: "\\[", right: "\\]", display: true}
                ],
                throwOnError: false,
                strict: false,
                trust: true
            });
        } catch (e) {}
    });
</script>
</body>
</html>