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knowledge-explanation-standalone.blade.php

knowledge-explanation-standalone.blade.php 23 KB
文件历史 原始文件

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  1. <!DOCTYPE html>
    2. 

  2. <html lang="zh-CN">
    3. 

  3. <head>
    4. 

  4.     <meta charset="UTF-8">
    5. 

  5.     <title>数学知识点讲解</title>
    6. 

  6.     <link rel="stylesheet" href="/css/katex/katex.min.css">
    7. 

  7.     @include('pdf.partials.kp-explain-styles')
    8. 

  8.     <style>
    9. 

  9.         :root {
    10. 

  10.             --pdf-space-xxs: 2px;
    11. 

  11.             --pdf-space-xs: 4px;
    12. 

  12.             --pdf-space-sm: 6px;
    13. 

  13.             --pdf-space-md: 10px;
    14. 

  14. 

  15.             --pdf-border-light: #d8d8d8;
    16. 

  16.             --pdf-border-strong: #777;
    17. 

  17. 

  18.             --pdf-text-primary: #000;
    19. 

  19.             --pdf-text-secondary: #555;
    20. 

  20. 

  21.             --pdf-radius-soft: 2px;
    22. 

  22. 

  23.             --pdf-line-normal: 1.75;
    24. 

  24.             --pdf-line-relaxed: 1.9;
    25. 

  25.         }
    26. 

  26. 

  27.         /* 与 exam-paper 一致：题干网格、选项网格、判卷答案区基础样式 */
    28. 

  28.         @include('pdf.partials.paper-body-core-styles')
    29. 

  29.         .case-list .option-compact { line-height: inherit; }
    30. 

  30.         .case-list .option .katex {
    31. 

  31.             font-size: 1em !important;
    32. 

  32.             vertical-align: 0;
    33. 

  33.         }
    34. 

  34.         .case-list .option .katex .mfrac {
    35. 

  35.             font-size: 1em !important;
    36. 

  36.         }
    37. 

  37.         .case-list .option .katex .mfrac .mtight {
    38. 

  38.             font-size: 1em !important;
    39. 

  39.         }
    40. 

  40.         .case-list .option .katex .frac-line {
    41. 

  41.             border-bottom-width: 0.055em !important;
    42. 

  42.         }
    43. 

  43.         .case-list .option .katex .mfrac .vlist > span:nth-child(1) {
    44. 

  44.             transform: translateY(0.24em) !important;
    45. 

  45.         }
    46. 

  46.         .case-list .option .katex .mfrac .vlist > span:nth-child(3) {
    47. 

  47.             transform: translateY(-0.16em) !important;
    48. 

  48.         }
    49. 

  49.         .case-list .option .katex-display {
    50. 

  50.             display: inline;
    51. 

  51.             margin: 0 !important;
    52. 

  52.             vertical-align: baseline;
    53. 

  53.         }
    54. 

  54.         .case-list .answer-meta {
    55. 

  55.             font-size: 12px;
    56. 

  56.             color: #2f2f2f;
    57. 

  57.             line-height: var(--pdf-line-normal);
    58. 

  58.             margin-top: var(--pdf-space-xs);
    59. 

  59.             page-break-inside: auto;
    60. 

  60.             break-inside: auto;
    61. 

  61.         }
    62. 

  62.         .case-list .answer-line + .answer-line { margin-top: var(--pdf-space-xs); }
    63. 

  63.         .case-list .solution-content { display: inline-block; line-height: var(--pdf-line-normal); }
    64. 

  64. 

  65.         /* ========== 案例区整体 ========== */
    66. 

  66.         .case-list { margin-top: 14px; }
    67. 

  67.         .case-list .case-item {
    68. 

  68.             margin: 10px 0 14px;
    69. 

  69.             padding: 8px var(--pdf-space-md);
    70. 

  70.             border: none;
    71. 

  71.             border-left: 1.5px solid var(--pdf-border-light);
    72. 

  72.             border-radius: var(--pdf-radius-soft);
    73. 

  73.             background: #fff;
    74. 

  74.             line-height: var(--pdf-line-normal);
    75. 

  75.             break-inside: auto;
    76. 

  76.             page-break-inside: auto;
    77. 

  77.             orphans: 2;
    78. 

  78.             widows: 2;
    79. 

  79.         }
    80. 

  80.         .case-list .case-item + .case-item { margin-top: 9px; }
    81. 

  81. 

  82.         /* ========== 题干区域 ========== */
    83. 

  83.         .case-list .kp-case-row {
    84. 

  84.             font-size: 14.5px;
    85. 

  85.             line-height: 1.8;
    86. 

  86.             margin-bottom: 3px;
    87. 

  87.             break-inside: auto;
    88. 

  88.             page-break-inside: auto;
    89. 

  89.             break-after: auto;
    90. 

  90.             page-break-after: auto;
    91. 

  91.             orphans: 2;
    92. 

  92.             widows: 2;
    93. 

  93.         }
    94. 

  94.         .case-list .kp-case-head-inline {
    95. 

  95.             display: inline;
    96. 

  96.         }
    97. 

  97.         .case-list .kp-case-prefix {
    98. 

  98.             font-weight: 700;
    99. 

  99.             white-space: nowrap;
    100. 

  100.         }
    101. 

  101.         .case-list .kp-case-title {
    102. 

  102.             font-size: 15px;
    103. 

  103.             font-weight: 700;
    104. 

  104.             color: var(--pdf-text-primary);
    105. 

  105.             margin-right: var(--pdf-space-xxs);
    106. 

  106.             white-space: nowrap;
    107. 

  107.         }
    108. 

  108.         .case-list .kp-case-source {
    109. 

  109.             font-size: 13px;
    110. 

  110.             color: var(--pdf-text-secondary);
    111. 

  111.             margin-right: 3px;
    112. 

  112.             font-weight: 700;
    113. 

  113.         }
    114. 

  114.         .case-list .kp-case-head-content {
    115. 

  115.             display: inline;
    116. 

  116.         }
    117. 

  117.         .case-list .kp-case-stem {
    118. 

  118.             font-size: 14.5px;
    119. 

  119.             font-weight: 400;
    120. 

  120.             line-height: 1.85;
    121. 

  121.             word-break: normal;
    122. 

  122.             overflow-wrap: break-word;
    123. 

  123.             break-inside: auto;
    124. 

  124.             page-break-inside: auto;
    125. 

  125.             orphans: 2;
    126. 

  126.             widows: 2;
    127. 

  127.         }
    128. 

  128.         /* 题干插图：局部居中，避免影响其它 PDF 模板 */
    129. 

  129.         .case-list .kp-case-stem img,
    130. 

  130.         .case-list .kp-case-stem svg {
    131. 

  131.             display: block;
    132. 

  132.             margin: 6px auto;
    133. 

  133.         }
    134. 

  134. 

  135.         /* ========== 解析区 ========== */
    136. 

  136.         .case-list .kp-case-meta-block { margin-top: 3px; line-height: 1.85; }
    137. 

  137.         .case-list .kp-case-meta-row {
    138. 

  138.             margin-top: 3px;
    139. 

  139.             text-indent: 0;
    140. 

  140.             page-break-inside: auto;
    141. 

  141.             break-inside: auto;
    142. 

  142.         }
    143. 

  143.         .case-list .kp-case-content {
    144. 

  144.             display: block;
    145. 

  145.             font-size: 14px;
    146. 

  146.             line-height: var(--pdf-line-relaxed);
    147. 

  147.             color: #222;
    148. 

  148.             white-space: normal;
    149. 

  149.             word-break: break-word;
    150. 

  150.             overflow-wrap: anywhere;
    151. 

  151.             orphans: 2;
    152. 

  152.             widows: 2;
    153. 

  153.         }
    154. 

  154.         .case-list .kp-case-answer-row {
    155. 

  155.             margin: var(--pdf-space-xs) 0 var(--pdf-space-sm);
    156. 

  156.             padding: 3px var(--pdf-space-sm);
    157. 

  157.             background: #f6f6f6;
    158. 

  158.             border-radius: var(--pdf-radius-soft);
    159. 

  159.         }
    160. 

  160.         .case-list .kp-case-solution-row .solution-content {
    161. 

  161.             display: block;
    162. 

  162.             margin-top: 2px;
    163. 

  163.         }
    164. 

  164.         /* 仅提升案例区 display 公式呼吸感，不动全局 KaTeX 行高 */
    165. 

  165.         .case-list .kp-case-content .katex-display,
    166. 

  166.         .case-list .kp-case-stem .katex-display {
    167. 

  167.             margin-top: 0.45em !important;
    168. 

  168.             margin-bottom: 0.5em !important;
    169. 

  169.         }
    170. 

  170.         .case-list .kp-case-content .complex-display-math,
    171. 

  171.         .case-list .kp-case-stem .complex-display-math {
    172. 

  172.             margin-top: 0.6em !important;
    173. 

  173.             margin-bottom: 0.65em !important;
    174. 

  174.         }
    175. 

  175. 

  176.         /* ========== 小标题 ========== */
    177. 

  177.         .case-list .case-subtitle {
    178. 

  178.             display: block;
    179. 

  179.             font-weight: 700;
    180. 

  180.             font-size: 14px;
    181. 

  181.             margin-top: 8px;
    182. 

  182.             margin-bottom: var(--pdf-space-xxs);
    183. 

  183.             padding-left: 5px;
    184. 

  184.             border-left: 2px solid var(--pdf-border-strong);
    185. 

  185.             line-height: 1.35;
    186. 

  186.             color: var(--pdf-text-primary);
    187. 

  187.             break-after: avoid;
    188. 

  188.             page-break-after: avoid;
    189. 

  189.         }
    190. 

  190.         /* 标题+首段语义绑定：只对真正短小的纯文本节 avoid；含图/大公式自动分页，减少大面积空白 */
    191. 

  191.         .case-list .case-section {
    192. 

  192.             margin-top: var(--pdf-space-xs);
    193. 

  193.             break-inside: auto;
    194. 

  194.             page-break-inside: auto;
    195. 

  195.         }
    196. 

  196.         .case-list .case-section + .case-section { margin-top: 5px; }
    197. 

  197.         .case-list .case-section.case-section-keep {
    198. 

  198.             break-inside: avoid;
    199. 

  199.             page-break-inside: avoid;
    200. 

  200.         }
    201. 

  201.         .case-list .case-section.case-section-long {
    202. 

  202.             break-inside: auto;
    203. 

  203.             page-break-inside: auto;
    204. 

  204.         }
    205. 

  205.         .case-list .case-section-content { margin-top: 1px; }
    206. 

  206. 

  207.         /* ========== 分页控制 ========== */
    208. 

  208.         .case-list .case-analysis {
    209. 

  209.             break-inside: auto;
    210. 

  210.             page-break-inside: auto;
    211. 

  211.         }
    212. 

  212.         .case-list .case-detail {
    213. 

  213.             break-inside: auto;
    214. 

  214.             page-break-inside: auto;
    215. 

  215.         }
    216. 

  216. 

  217.         /* ========== 多小题 ========== */
    218. 

  218.         .case-list .sub-question {
    219. 

  219.             display: block;
    220. 

  220.             margin: 4px 0;
    221. 

  221.             padding-left: 2em;
    222. 

  222.             text-indent: -2em;
    223. 

  223.             line-height: 1.8;
    224. 

  224.         }
    225. 

  225. 

  226.         /* 图片：与 exam-paper / 判卷一致 */
    227. 

  227.         @include('pdf.partials.paper-exam-shared-image-styles')
    228. 

  228.         /* 案例区优先节省纸张：不要让图和后续小题/答案强绑定到下一页 */
    229. 

  229.         .case-list .pdf-figure {
    230. 

  230.             break-inside: auto !important;
    231. 

  231.             page-break-inside: auto !important;
    232. 

  232.             -webkit-column-break-inside: auto !important;
    233. 

  233.             break-before: auto !important;
    234. 

  234.             break-after: auto !important;
    235. 

  235.             page-break-before: auto !important;
    236. 

  236.             page-break-after: auto !important;
    237. 

  237.             margin: 4px 0 !important;
    238. 

  238.             min-height: 0 !important;
    239. 

  239.             max-height: none !important;
    240. 

  240.         }
    241. 

  241.         .case-list .pdf-figure img,
    242. 

  242.         .case-list .kp-case-stem img {
    243. 

  243.             margin-top: 4px !important;
    244. 

  244.             margin-bottom: 4px !important;
    245. 

  245.             max-height: 48mm !important;
    246. 

  246.         }
    247. 

  247.     </style>
    248. 

  248. </head>
    249. 

  249. <body>
    250. 

  250. <div class="page">
    251. 

  251.     <div class="kp-explain-header">
    252. 

  252.         <div class="kp-explain-title">数学知识点讲解</div>
    253. 

  253.         <div class="kp-explain-subtitle">围绕目标知识点生成讲解与案例，帮助学生高效复习。</div>
    254. 

  254.     </div>
    255. 

  255. 

  256.     {{-- 知识点正文：与 pdf.exam-knowledge-explanation（知识点组卷前置梳理）同一套容器与数据（buildExplanations + normalizeKpExplanation） --}}
    257. 

  257.     @if(empty($knowledgePoints))
    258. 

  258.         <div class="kp-empty">暂无知识点数据</div>
    259. 

  259.     @else
    260. 

  260.         <div class="kp-list">
    261. 

  261.     @foreach($knowledgePoints as $point)
    262. 

  262.         <div class="kp-section">
    263. 

  263.             <div class="kp-section-head">
    264. 

  264.                 <div class="kp-section-name">{{ $loop->iteration }}、{{ $point['kp_name'] ?? ($point['kp_code'] ?? '未命名知识点') }}</div>
    265. 

  265.             </div>
    266. 

  266.             <div class="kp-section-body">
    267. 

  267.                 @if(!empty($point['explanation']))
    268. 

  268.                     {!! $point['explanation'] !!}
    269. 

  269.                 @endif
    270. 

  270.             </div>
    271. 

  271. 

  272.             @if(!empty($point['cases']))
    273. 

  273.                 @php
    274. 

  274.                     // 与卷子题干一致的小题号断行逻辑（仅在至少2个小题编号时生效）
    275. 

  275.                     $formatStemLikePaper = function (?string $text): string {
    276. 

  276.                         $stem = trim((string) $text);
    277. 

  277.                         if ($stem === '') {
    278. 

  278.                             return '—';
    279. 

  279.                         }
    280. 

  280.                         preg_match_all('/[（(][1-9][0-9]*[）)]/u', $stem, $subQuestionMatches);
    281. 

  281.                         $subQuestionCount = count($subQuestionMatches[0] ?? []);
    282. 

  282.                         if ($subQuestionCount >= 2) {
    283. 

  283.                             $stem = preg_replace('/^\s*([（(][1-9][0-9]*[）)])\s*/u', '$1 ', $stem) ?? $stem;
    284. 

  284.                             // 断行后保留两个中文空格缩进
    285. 

  285.                             $stem = preg_replace('/([。；;！？!?:：.])\s*([（(][1-9][0-9]*[）)])\s*/u', '$1<br>　　$2 ', $stem) ?? $stem;
    286. 

  286.                             $stem = preg_replace('/(?:(?:\\\\r\\\\n|\\\\n)|(?:\r?\n)|(?:<br\s*\/?>)|\s)+\s*([（(][1-9][0-9]*[）)])\s*/u', '<br>　　$1 ', $stem) ?? $stem;
    287. 

  287.                             $stem = preg_replace('/(求出|求解|求|写出|计算|证明|判断|化简)\s*([（(][1-9][0-9]*[）)])\s*/u', '$1<br>　　$2 ', $stem) ?? $stem;
    288. 

  288.                         }
    289. 

  289.                         return $stem;
    290. 

  290.                     };
    291. 

  291. 

  292.                     $markComplexDisplayMath = function (string $html): string {
    293. 

  293.                         return preg_replace_callback(
    294. 

  294.                             '/<span\b([^>]*\bclass="[^"]*\bkatex-display\b[^"]*"[^>]*)>(.*?)<\/span>/isu',
    295. 

  295.                             static function (array $matches): string {
    296. 

  296.                                 $attrs = $matches[1] ?? '';
    297. 

  297.                                 $content = $matches[2] ?? '';
    298. 

  298.                                 $isComplex = str_contains($content, 'mfrac') || str_contains($content, 'vlist');
    299. 

  299.                                 if (!$isComplex || str_contains($attrs, 'complex-display-math')) {
    300. 

  300.                                     return $matches[0];
    301. 

  301.                                 }
    302. 

  302. 

  303.                                 $attrs = preg_replace('/\bclass="([^"]*)"/u', 'class="$1 complex-display-math"', $attrs, 1) ?? $attrs;
    304. 

  304. 

  305.                                 return '<span' . $attrs . '>' . $content . '</span>';
    306. 

  306.                             },
    307. 

  307.                             $html
    308. 

  308.                         ) ?? $html;
    309. 

  309.                     };
    310. 

  310. 

  311.                     // 解析：移除“讲解/解析”前缀，结构化分析/详解小标题，并保守处理步骤换行
    312. 

  312.                     $formatSolution = function (?string $text) use ($markComplexDisplayMath): string {
    313. 

  313.                         $solution = trim((string) $text);
    314. 

  314.                         if ($solution === '') {
    315. 

  315.                             return '—';
    316. 

  316.                         }
    317. 

  317.                         $solution = preg_replace('/^\s*[【\[]?\s*(讲解|解析)\s*[】\]]?\s*[:：]\s*/u', '', $solution) ?? $solution;
    318. 

  318.                         $solution = preg_replace('/\s*【\s*(分析|详解|点睛)\s*】\s*/u', '<div class="case-subtitle">$1</div>', $solution) ?? $solution;
    319. 

  319.                         $solution = preg_replace('/\s*\[\s*(分析|详解|点睛)\s*\]\s*/u', '<div class="case-subtitle">$1</div>', $solution) ?? $solution;
    320. 

  320.                         $solution = preg_replace('/\s*(步骤\s*[0-9一二三四五六七八九十百零两]+\s*[：:]?)/u', '<br>$1', $solution) ?? $solution;
    321. 

  321.                         $solution = preg_replace('/\s*(第\s*[0-9一二三四五六七八九十百零两]+\s*步\s*[：:]?)/u', '<br>$1', $solution) ?? $solution;
    322. 

  322.                         $plainLength = mb_strlen(strip_tags($solution), 'UTF-8');
    323. 

  323.                         if ($plainLength > 160) {
    324. 

  324.                             $solution = preg_replace('/([。；])\s*/u', '$1<br>', $solution) ?? $solution;
    325. 

  325.                         }
    326. 

  326.                         $solution = preg_replace('/(<\/div>)\s*<br>\s*(步骤\s*[0-9一二三四五六七八九十百零两]+\s*[：:]?)/u', '$1$2', $solution) ?? $solution;
    327. 

  327.                         $solution = preg_replace('/(<\/div>)\s*<br>\s*(第\s*[0-9一二三四五六七八九十百零两]+\s*步\s*[：:]?)/u', '$1$2', $solution) ?? $solution;
    328. 

  328.                         $solution = preg_replace('/^(?:\s*<br\s*\/?>\s*)+/iu', '', $solution) ?? $solution;
    329. 

  329.                         $solution = preg_replace('/(?:<br>\s*){2,}/u', '<br>', $solution) ?? $solution;
    330. 

  330.                         $solution = preg_replace('/(?:\s*<br>\s*)*(<div class="case-subtitle">)/u', '$1', $solution) ?? $solution;
    331. 

  331.                         $solution = $markComplexDisplayMath($solution);
    332. 

  332. 

  333.                         // 将「分析/详解」转换为可分页语义块：标题 + 内容。
    334. 

  334.                         // 仅短小纯文本节绑定；含图/display 公式的节允许自然分页，减少整块推页空白。
    335. 

  335.                         $caseSectionClass = static function (string $body, bool $hasTitle = true): string {
    336. 

  336.                             $plainLength = mb_strlen(trim(strip_tags($body)), 'UTF-8');
    337. 

  337.                             $containsImage = str_contains($body, '<img') || str_contains($body, 'pdf-figure');
    338. 

  338.                             $containsDisplayMath = str_contains($body, 'katex-display');
    339. 

  339.                             $isShortSection = $plainLength < 120 && !$containsImage && !$containsDisplayMath;
    340. 

  340. 

  341.                             if ($hasTitle) {
    342. 

  342.                                 return $isShortSection ? 'case-section case-section-keep' : 'case-section case-section-long';
    343. 

  343.                             }
    344. 

  344. 

  345.                             return $isShortSection ? 'case-section case-section-keep case-section-plain' : 'case-section case-section-long case-section-plain';
    346. 

  346.                         };
    347. 

  347.                         $chunks = preg_split('/<div class="case-subtitle">(.*?)<\/div>/u', $solution, -1, PREG_SPLIT_DELIM_CAPTURE);
    348. 

  348.                         if (is_array($chunks) && count($chunks) > 1) {
    349. 

  349.                             $sectionHtml = '';
    350. 

  350.                             $lead = trim((string) ($chunks[0] ?? ''));
    351. 

  351.                             if ($lead !== '') {
    352. 

  352.                                 $leadClass = $caseSectionClass($lead, false);
    353. 

  353.                                 $sectionHtml .= '<div class="' . $leadClass . '"><div class="case-section-content">' . $lead . '</div></div>';
    354. 

  354.                             }
    355. 

  355.                             for ($i = 1; $i < count($chunks); $i += 2) {
    356. 

  356.                                 $title = trim((string) ($chunks[$i] ?? ''));
    357. 

  357.                                 $body = trim((string) ($chunks[$i + 1] ?? ''));
    358. 

  358.                                 if ($title === '' && $body === '') {
    359. 

  359.                                     continue;
    360. 

  360.                                 }
    361. 

  361.                                 $sectionClass = $caseSectionClass($body, true);
    362. 

  362.                                 $sectionHtml .= '<div class="' . $sectionClass . '"><div class="case-subtitle">' . $title . '</div><div class="case-section-content">' . $body . '</div></div>';
    363. 

  363.                             }
    364. 

  364.                             if ($sectionHtml !== '') {
    365. 

  365.                                 $solution = $sectionHtml;
    366. 

  366.                             }
    367. 

  367.                         } else {
    368. 

  368.                             $plainClass = $caseSectionClass($solution, false);
    369. 

  369.                             $solution = '<div class="' . $plainClass . '"><div class="case-section-content">' . $solution . '</div></div>';
    370. 

  370.                         }
    371. 

  371.                         return $solution;
    372. 

  372.                     };
    373. 

  373.                 @endphp
    374. 

  374.                 <div class="kp-markdown"><h3>案例分析</h3></div>
    375. 

  375.                 <div class="case-list">
    376. 

  376.                     @foreach($point['cases'] as $case)
    377. 

  377.                         @php
    378. 

  378.                             $sourceText = '';
    379. 

  379.                             if (!empty($case['child_kp_name'])) {
    380. 

  380.                                 // 只展示子知识点来源，不展示父知识点名称
    381. 

  381.                                 $sourceText = trim((string) $case['child_kp_name']);
    382. 

  382.                                 $parentName = trim((string) ($point['kp_name'] ?? ''));
    383. 

  383.                                 if ($parentName !== '') {
    384. 

  384.                                     $escapedParent = preg_quote($parentName, '/');
    385. 

  385.                                     $sourceText = preg_replace('/^' . $escapedParent . '\s*[-—－\/]\s*/u', '', $sourceText) ?? $sourceText;
    386. 

  386.                                 }
    387. 

  387.                                 if (preg_match('/[-—－\/]/u', $sourceText)) {
    388. 

  388.                                     $parts = preg_split('/\s*[-—－\/]\s*/u', $sourceText);
    389. 

  389.                                     if (is_array($parts) && !empty($parts)) {
    390. 

  390.                                         $sourceText = trim((string) end($parts));
    391. 

  391.                                     }
    392. 

  392.                                 }
    393. 

  393.                             } elseif (!empty($case['is_wrong_case'])) {
    394. 

  394.                                 $sourceText = '错题讲解';
    395. 

  395.                             } elseif (($case['source_type'] ?? '') === 'reviewed') {
    396. 

  396.                                 $sourceText = '已做题';
    397. 

  397.                             } elseif (($case['source_type'] ?? '') === 'fallback') {
    398. 

  398.                                 $sourceText = '补充题';
    399. 

  399.                             }
    400. 

  400.                         @endphp
    401. 

  401.                         <div class="case-item">
    402. 

  402.                             <div class="kp-case-row">
    403. 

  403.                                 @php
    404. 

  404.                                     $stemLine = trim((string) ($case['stem'] ?? ''));
    405. 

  405.                                     if ($stemLine === '') {
    406. 

  406.                                         $renderedStemHtml = '—';
    407. 

  407.                                     } else {
    408. 

  408.                                         [$renderedStemHtml] = \App\Support\BlankPlaceholderRenderer::replaceToBlankSpan($stemLine, null, true, false);
    409. 

  409.                                         $renderedStemHtml = \App\Support\BlankPlaceholderRenderer::normalizeTerminalPunctuation($renderedStemHtml, 'remove');
    410. 

  410.                                         $renderedStemHtml = $formatStemLikePaper($renderedStemHtml);
    411. 

  411.                                         $renderedStemHtml = \App\Services\MathFormulaProcessor::processFormulas($renderedStemHtml);
    412. 

  412.                                         $renderedStemHtml = $markComplexDisplayMath($renderedStemHtml);
    413. 

  413.                                     }
    414. 

  414.                                 @endphp
    415. 

  415.                                 <div class="kp-case-head-inline">
    416. 

  416.                                     <span class="kp-case-prefix">
    417. 

  417.                                         <span class="kp-case-title">例{{ $loop->iteration }}.</span>
    418. 

  418.                                         @if($sourceText !== '')
    419. 

  419.                                             <span class="kp-case-source">（{{ $sourceText }}）</span>
    420. 

  420.                                         @endif
    421. 

  421.                                     </span>
    422. 

  422.                                     <span class="kp-case-head-content">
    423. 

  423.                                         <span class="kp-case-stem">{!! $renderedStemHtml !!}</span>
    424. 

  424.                                     </span>
    425. 

  425.                                 </div>
    426. 

  426.                                 @php
    427. 

  427.                                     $options = (array) ($case['options'] ?? []);
    428. 

  428.                                 @endphp
    429. 

  429.                                 @if(!empty($options))
    430. 

  430.                                     @include('pdf.partials.exam-choice-options', [
    431. 

  431.                                         'options' => $options,
    432. 

  432.                                         'gradingMode' => false,
    433. 

  433.                                         'mathProcessed' => false,
    434. 

  434.                                         'logQuestionNumber' => 'kp-' . ($case['question_id'] ?? $loop->iteration),
    435. 

  435.                                         'showLeadSpacer' => false,
    436. 

  436.                                     ])
    437. 

  437.                                 @endif
    438. 

  438.                             </div>
    439. 

  439.                             <div class="kp-case-meta-block">
    440. 

  440.                                 @php
    441. 

  441.                                     $layoutDeciderService = app(\App\Support\OptionLayoutDecider::class);
    442. 

  442.                                     $choiceAnswerRaw = $layoutDeciderService->normalizeCompactMathForDisplay(trim((string) ($case['answer'] ?? '')));
    443. 

  443.                                     $solutionText = trim((string) ($case['solution'] ?? ''));
    444. 

  444.                                     $solutionText = preg_replace('/^【?\s*解题思路\s*】?\s*[:：]?\s*/u', '', $solutionText) ?? $solutionText;
    445. 

  445.                                     $solutionProcessed = $solutionText === ''
    446. 

  446.                                         ? ''
    447. 

  447.                                         : \App\Services\MathFormulaProcessor::processFormulas($solutionText);
    448. 

  448.                                     $solutionHtml = $solutionProcessed === ''
    449. 

  449.                                         ? '<span style="color:#999;font-style:italic;">（暂无解题思路）</span>'
    450. 

  450.                                         : $formatSolution($solutionProcessed);
    451. 

  451.                                     $answerLineHtml = $choiceAnswerRaw === ''
    452. 

  452.                                         ? '—'
    453. 

  453.                                         : \App\Services\MathFormulaProcessor::processFormulas($choiceAnswerRaw);
    454. 

  454.                                 @endphp
    455. 

  455.                                 <div class="answer-meta">
    456. 

  456.                                     <div class="answer-line kp-case-answer-row"><strong>正确答案：</strong><span class="solution-content">{!! $answerLineHtml !!}</span></div>
    457. 

  457.                                     <div class="answer-line kp-case-solution-row"><strong>解题思路：</strong><span class="solution-content kp-case-content">{!! $solutionHtml !!}</span></div>
    458. 

  458.                                 </div>
    459. 

  459.                             </div>
    460. 

  460.                         </div>
    461. 

  461.                     @endforeach
    462. 

  462.                 </div>
    463. 

  463.             @endif
    464. 

  464.         </div>
    465. 

  465.     @endforeach
    466. 

  466.         </div>
    467. 

  467.     @endif
    468. 

  468. </div>
    469. 

  469. </body>
    470. 

  470. </html>
    471.