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  1. <!DOCTYPE html>
    2. 

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

  3. <head>
    4. 

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

  5.   <meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1.0, user-scalable=no">
    6. 

  6.   <title>AI 药典助手</title>
    7. 

  7.   <style>
    8. 

  8.     :root{--app-height:100vh;--bk:#002FA7;--bk-l:#E8EDF8;--rd:#C41E3A;--rd-l:#FDEAEE;--bg:#F5F6FA;--card:#fff;--text:#1a1a2e;--sub:#888;--radius:12px}
    9. 

  9.     *{margin:0;padding:0;box-sizing:border-box}
    10. 

  10.     html{width:100%;height:100%;overflow:hidden}
    11. 

  11.     body{font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei",sans-serif;background:var(--bg);width:100%;height:var(--app-height);min-height:100%;display:flex;flex-direction:column;overflow:hidden}
    12. 

  12.     .header{background:linear-gradient(135deg,var(--bk),#1a3fbf);color:#fff;padding:12px 14px;text-align:center;flex-shrink:0;position:relative;overflow:hidden;z-index:10}
    13. 

  13.     .header::after{content:'';position:absolute;top:-40px;right:-30px;width:120px;height:120px;background:var(--rd);border-radius:50%;opacity:.15}
    14. 

  14.     .header h1{font-size:17px;font-weight:700;position:relative;z-index:1}
    15. 

  15.     .header .sub{font-size:11px;opacity:.85;margin-top:2px;position:relative;z-index:1}
    16. 

  16.     .header .badge{display:inline-block;font-size:10px;background:rgba(255,255,255,.2);padding:2px 8px;border-radius:10px;margin-top:4px;position:relative;z-index:1}
    17. 

  17.     .nav{display:flex;background:#fff;border-bottom:1px solid #e0e0e0;flex-shrink:0;z-index:10}
    18. 

  18.     .nav-btn{flex:1;padding:12px;text-align:center;font-size:13px;color:var(--sub);cursor:pointer;border:none;background:none;border-bottom:2px solid transparent;transition:all .2s;min-height:44px}
    19. 

  19.     .nav-btn.active{color:var(--bk);border-bottom-color:var(--bk);font-weight:600}
    20. 

  20.     .chat{flex:1;min-height:0;overflow-y:auto;padding:12px 14px;display:flex;flex-direction:column;gap:12px;-webkit-overflow-scrolling:touch;touch-action:pan-y;overscroll-behavior-y:contain}
    21. 

  21.         #tabChat,#tabDrugs{display:flex;flex-direction:column;flex:1;min-height:0;overflow:hidden}
    22. 

  22.     .msg{max-width:85%;padding:10px 14px;border-radius:var(--radius);font-size:14px;line-height:1.7;word-break:break-word;animation:fadeIn .3s}
    23. 

  23.     .msg.user{align-self:flex-end;background:var(--bk);color:#fff;border-radius:var(--radius) var(--radius) 4px var(--radius)}
    24. 

  24.     .msg.ai{align-self:flex-start;background:var(--card);color:var(--text);border-radius:var(--radius) var(--radius) var(--radius) 4px;box-shadow:0 1px 4px rgba(0,0,0,.06);border-left:3px solid var(--bk)}
    25. 

  25.     .msg.ai .tag{display:inline-block;font-size:11px;padding:2px 8px;border-radius:10px;margin-bottom:6px;font-weight:600}
    26. 

  26.     .tag-drug{background:var(--bk-l);color:var(--bk)}
    27. 

  27.     .tag-usage{background:var(--rd-l);color:var(--rd)}
    28. 

  28.     .tag-symptom{background:#fff3e0;color:#e65100}
    29. 

  29.     .tag-regulation{background:#f3e5f5;color:#6a1b9a}
    30. 

  30.     .tag-exam{background:#e0f2f1;color:#00695c}
    31. 

  31.     .content p{margin:0 0 12px 0;line-height:1.8;word-break:break-word}
    32. 

  32.     .content p:last-child{margin-bottom:0}
    33. 

  33.     .content strong{color:#111}
    34. 

  34.     .content ul,.content ol{margin:8px 0;padding-left:18px;line-height:1.8}
    35. 

  35.     .content li{margin:4px 0}
    36. 

  36.     .img-placeholder{display:inline-block;padding:8px 16px;background:#f0f4ff;border:1px dashed #b0c4ff;border-radius:6px;color:#888;font-size:13px;margin:4px 0}
    37. 

  37.     .content h3{font-size:15px;margin:16px 0 8px;color:var(--bk);font-weight:700}
    38. 

  38.     .content h3.src-section{font-size:14px;color:#555;font-weight:600;margin:12px 0 6px}
    39. 

  39.     .content .warn{color:var(--rd);font-weight:600}
    40. 

  40.     .think-dot{display:inline-block;width:8px;height:8px;border-radius:50%;background:var(--bk);animation:thinkPulse 1s infinite;vertical-align:middle;margin-right:6px}
    41. 

  41.     @keyframes thinkPulse{0%,100%{opacity:1;transform:scale(1)}50%{opacity:.4;transform:scale(.7)}}
    42. 

  42.     .thinking{color:var(--sub);font-size:13px;padding:4px 0}
    43. 

  43.     .cursor{animation:blink .8s infinite;color:var(--bk);font-weight:700}
    44. 

  44.     @keyframes fadeIn{from{opacity:0;transform:translateY(6px)}to{opacity:1;transform:translateY(0)}}
    45. 

  45.     @keyframes blink{0%,100%{opacity:1}50%{opacity:0}}
    46. 

  46.     .source{margin-top:10px;padding-top:8px;border-top:1px solid #eee;font-size:11px;color:#aaa;line-height:1.6}
    47. 

  47.     .source span{color:#888;font-weight:500}
    48. 

  48.     .source-sep{display:block;margin:16px 0 8px;padding-top:12px;border-top:1px dashed #ddd;color:#999;font-size:12px}
    49. 

  49.     .source-tags{margin-top:12px;padding-top:10px;border-top:1px dashed #ddd}
    50. 

  50.     .source-tags .src-title{font-size:12px;color:#999;margin-bottom:6px}
    51. 

  51.     .source-tag{display:inline-block;padding:3px 8px;margin:2px 4px;background:#f0f4ff;border:1px solid #d0d8f0;border-radius:12px;font-size:12px;color:#002FA7;cursor:pointer;transition:all .15s}
    52. 

  52.     .source-tag:hover{background:#002FA7;color:#fff;border-color:#002FA7}
    53. 

  53.     .source-tag .src-excerpt{display:none;margin-top:4px;padding:8px 10px;background:#fff;border-radius:6px;font-size:13px;color:#333;line-height:1.8;max-width:500px;word-break:break-word;box-shadow:0 2px 8px rgba(0,0,0,.08)}
    54. 

  54.     .source-tag.open .src-excerpt{display:block}
    55. 

  55.     .source-tag.open{background:#002FA7;color:#fff}
    56. 

  56.     .source-tag .src-excerpt strong{color:#002FA7;font-size:12px}
    57. 

  57.     .ext-link{color:#002FA7;text-decoration:underline;word-break:break-all}
    58. 

  58.     .ext-link:hover{color:#C41E3A}
    59. 

  59.     .ext-link:visited{color:#6a1b9a}
    60. 

  60.     .input-area{display:flex;padding:10px 14px;background:#fff;border-top:1px solid #e0e0e0;gap:8px;flex-shrink:0;z-index:10}
    61. 

  61.         #previewArea{flex-shrink:0}
    62. 

  62.     .input-area input{flex:1;padding:10px 14px;border:1px solid #ddd;border-radius:24px;font-size:14px;outline:none;min-height:44px}
    63. 

  63.     .input-area input:focus{border-color:var(--bk);box-shadow:0 0 0 2px rgba(0,47,167,.12)}
    64. 

  64.     .btn{padding:8px 18px;border:none;border-radius:24px;font-size:14px;font-weight:700;cursor:pointer;min-height:44px;white-space:nowrap}
    65. 

  65.     .btn-primary{background:#fff;color:var(--bk);border:1px solid var(--bk);transition:all .15s}.btn-primary:hover:not(:disabled){background:var(--bk);color:#fff}.btn-primary:active:not(:disabled){transform:scale(.96)}
    66. 

  66.     .btn-danger{background:var(--rd);color:#fff;transition:all .15s}.btn-danger:hover:not(:disabled){background:#a01830}.btn-danger:active:not(:disabled){transform:scale(.96)}
    67. 

  67.     .btn-secondary{background:#fff;color:var(--bk);border:1px solid var(--bk);transition:all .15s}.btn-secondary:hover:not(:disabled){background:var(--bk);color:#fff}.btn-secondary:active:not(:disabled){transform:scale(.96)}
    68. 

  68.     .btn:disabled{opacity:.4;cursor:default}
    69. 

  69.     .media-btn{display:flex;flex-direction:column;align-items:center;justify-content:center;background:linear-gradient(135deg,#E8EDF8,#dce4f5);border:2px solid #002FA7;border-radius:12px;padding:6px 10px;font-size:24px;cursor:pointer;min-height:44px;min-width:52px;gap:0;flex-shrink:0;-webkit-user-select:none;user-select:none;transition:all .15s}
    70. 

  70.     .media-btn:hover{background:linear-gradient(135deg,#002FA7,#1a3fbf);color:#fff;border-color:#002FA7;transform:scale(1.05)}
    71. 

  71.     .media-btn:active{transform:scale(.95)}
    72. 

  72.     .media-label{font-size:10px;font-weight:600;color:#002FA7;white-space:nowrap;margin-top:-2px}
    73. 

  73.     .media-btn:hover .media-label{color:#fff}
    74. 

  74.     .tags{display:flex;gap:6px;padding:6px 14px 10px;flex-wrap:wrap;flex-shrink:0}
    75. 

  75.     .tag-btn{font-size:12px;padding:5px 12px;border-radius:16px;border:1px solid rgba(0,47,167,.2);background:var(--bk-l);color:var(--bk);cursor:pointer;white-space:nowrap;min-height:36px;display:flex;align-items:center;-webkit-user-select:none;user-select:none}
    76. 

  76.     .tag-btn:active{background:rgba(0,47,167,.15)}
    77. 

  77.     .welcome{text-align:center;color:var(--sub);padding:40px 20px}
    78. 

  78.     .welcome .icon{font-size:48px;margin-bottom:12px}
    79. 

  79.     .drug-list{flex:1;overflow-y:auto;padding:12px 14px;min-height:0;-webkit-overflow-scrolling:touch;touch-action:pan-y;overscroll-behavior-y:contain}
    80. 

  80.     .drug-pager{flex-shrink:0;padding:8px 14px;background:#fff;border-top:1px solid #e0e0e0}
    81. 

  81.     .drug-card{background:var(--card);border-radius:var(--radius);padding:14px;margin-bottom:10px;box-shadow:0 1px 4px rgba(0,0,0,.06);cursor:pointer}
    82. 

  82.     .drug-card h3{font-size:15px;color:var(--bk);margin-bottom:4px}
    83. 

  83.     .drug-card .meta{font-size:12px;color:var(--sub)}
    84. 

  84.     .drug-detail{padding:16px 14px;flex:1;min-height:0;overflow-y:auto;-webkit-overflow-scrolling:touch;touch-action:pan-y;overscroll-behavior-y:contain}
    85. 

  85.     .drug-detail h2{font-size:20px;color:var(--bk);margin-bottom:8px}
    86. 

  86.     .drug-detail h3{font-size:15px;color:var(--bk);margin:16px 0 8px}
    87. 

  87.     .drug-detail .info-row{font-size:13px;color:var(--sub);margin:4px 0}
    88. 

  88.     .drug-detail .section{background:var(--card);border-radius:8px;padding:12px;margin:8px 0;font-size:14px;line-height:1.8}
    89. 

  89.     .search-box{padding:10px 14px;background:#fff;border-bottom:1px solid #e0e0e0;flex-shrink:0}
    90. 

  90.     .search-box input{width:100%;padding:10px 14px;border:1px solid #ddd;border-radius:24px;font-size:14px;outline:none;min-height:44px}
    91. 

  91.     .search-box input:focus{border-color:var(--bk);box-shadow:0 0 0 2px rgba(0,47,167,.12)}
    92. 

  92.     .status-bar{font-size:11px;padding:4px 14px;text-align:center;flex-shrink:0}
    93. 

  93.     .hidden{display:none!important}
    94. 

  94.     .pager{display:flex;justify-content:center;align-items:center;gap:4px;flex-wrap:wrap}
    95. 

  95.     .pager button,.pager select{border:1px solid #d0d5dd;border-radius:6px;background:#fff;color:#344054;font-size:12px;cursor:pointer;padding:6px 10px;min-height:32px;transition:all .15s}
    96. 

  96.     .pager button:hover:not(:disabled){background:#E8EDF8;border-color:#002FA7;color:#002FA7}
    97. 

  97.     .pager button.active{background:#002FA7;color:#fff;border-color:#002FA7;font-weight:600}
    98. 

  98.     .pager button:disabled{opacity:.35;cursor:default}
    99. 

  99.     .pager .page-info{font-size:12px;color:#888;margin:0 4px;white-space:nowrap}
    100. 

  100.     .pager select{padding:6px 8px;appearance:auto}
    101. 

  101.     .login-modal-mask{position:fixed;inset:0;display:flex;align-items:center;justify-content:center;padding:24px;background:rgba(0,0,0,.5);z-index:100}
    102. 

  102.     .login-modal{width:min(320px,100%);overflow:hidden;border-radius:12px;background:#fff;box-shadow:0 12px 36px rgba(0,0,0,.2);text-align:center}
    103. 

  103.     .login-modal-title{padding:24px 24px 8px;color:var(--text);font-size:17px;font-weight:700}
    104. 

  104.     .login-modal-desc{padding:0 24px 24px;color:var(--sub);font-size:14px;line-height:1.6}
    105. 

  105.     .login-modal-actions{display:flex;border-top:1px solid #eee}
    106. 

  106.     .login-modal-btn{flex:1;min-height:50px;border:0;background:#fff;color:var(--text);font-size:16px;cursor:pointer}
    107. 

  107.     .login-modal-btn+.login-modal-btn{border-left:1px solid #eee}
    108. 

  108.     .login-modal-btn:focus-visible{outline:2px solid var(--bk);outline-offset:-3px}
    109. 

  109.     .login-modal-btn-primary{color:var(--bk);font-weight:600}
    110. 

  110. @media(max-width:400px){.input-area{padding:8px 6px;gap:4px}.input-area input{padding:8px 10px;font-size:13px;min-height:40px}.btn{padding:6px 10px;font-size:12px;min-height:40px}.media-btn{min-width:40px;padding:4px 6px;font-size:20px;border-radius:10px}.media-label{font-size:9px}.tags{padding:6px 8px 8px;gap:4px}.tag-btn{font-size:11px;padding:4px 10px}.chat{padding:10px 8px}.msg{max-width:90%}.header h1{font-size:15px}.header .sub{font-size:10px}.drug-list{padding:10px 8px}.drug-detail{padding:14px 10px}.search-box{padding:8px 10px}.drug-pager{padding:6px 8px}.pager button,.pager select{padding:4px 6px;font-size:11px}}
    111. 

  111.   </style>
    112. 

  112. </head>
    113. 

  113. <body>
    114. 

  114. <div class="header">
    115. 

  115.   <h1>AI 药典助手</h1>
    116. 

  116.   
    117. 

  117.   <div class="sub">基于《中华人民共和国药典》& 通义千问</div>
    118. 

  118. </div>
    119. 

  119. <div class="nav">
    120. 

  120.   <button class="nav-btn active" data-tab="chat" onclick="switchTab('chat')">AI 对话</button>
    121. 

  121.   <button class="nav-btn" data-tab="drugs" onclick="switchTab('drugs')">药品库</button>
    122. 

  122. </div>
    123. 

  123. <div id="tabChat">
    124. 

  124.   <div class="chat" id="chat"><div class="welcome"><p>输入药品名称或问题，AI 从药典知识库中检索回答<br><small style="color:#aaa">支持图片/视频上传识别</small></p></div></div>
    125. 

  125.   <div class="tags"><span class="tag-btn" onclick="quickAsk('布洛芬')">布洛芬</span><span class="tag-btn" onclick="quickAsk('甲硝唑')">甲硝唑</span><span class="tag-btn" onclick="quickAsk('阿莫西林禁忌')">阿莫西林禁忌</span><span class="tag-btn" onclick="quickAsk('布洛芬用法用量')">布洛芬用法用量</span><span class="tag-btn" onclick="quickAsk('二甲双胍不良反应')">二甲双胍不良反应</span><span class="tag-btn" onclick="quickAsk('青霉素过敏处理')">青霉素过敏处理</span></div>
    126. 

  126.   <div id="previewArea" style="display:none;padding:8px 14px;background:#fffef5;border-top:1px solid #f0e68c;align-items:center;gap:10px;flex-wrap:wrap">
    127. 

  127.     <span id="previewLabel" style="font-size:13px;color:#666;font-weight:500"></span>
    128. 

  128.     <img id="previewThumb" style="max-width:80px;max-height:60px;border-radius:6px;display:none;border:1px solid #ddd">
    129. 

  129.     <video id="previewVid" style="max-width:150px;max-height:84px;border-radius:6px;display:none;border:1px solid #ddd" muted></video>
    130. 

  130.     <button class="btn btn-secondary" style="font-size:12px;padding:4px 12px;min-height:auto" onclick="clearMedia()">✕ 移除附件</button>
    131. 

  131.   </div>
    132. 

  132.   <div class="input-area">
    133. 

  133.     <button class="media-btn" onclick="document.getElementById('imageInput').click()" title="上传图片">📷<span class="media-label">图片</span></button>
    134. 

  134.     <button class="media-btn" onclick="document.getElementById('videoInput').click()" title="上传视频">🎬<span class="media-label">视频</span></button>
    135. 

  135.     <input type="file" id="imageInput" accept="image/*" onchange="onFilePicked('image')" style="display:none">
    136. 

  136.     <input type="file" id="videoInput" accept="video/*" onchange="onFilePicked('video')" style="display:none">
    137. 

  137.     <input id="userInput" placeholder="输入药品问题，或上传图片/视频...">
    138. 

  138.     <button class="btn btn-danger" id="sendBtn" onclick="send()">发送</button>
    139. 

  139.     <button class="btn btn-secondary" id="stopBtn" onclick="stopCurrent()" style="display:none">停止</button>
    140. 

  140.   </div>
    141. 

  141. </div>
    142. 

  142. <div id="tabDrugs" class="hidden">
    143. 

  143.   <div class="search-box"><input id="drugSearchInput" placeholder="搜索药品名称..." oninput="searchDrugs()"></div>
    144. 

  144.   <div class="drug-list" id="drugList"></div>
    145. 

  145.   <div class="drug-pager" id="drugPager"></div>
    146. 

  146. </div>
    147. 

  147. <div id="loginModal" class="login-modal-mask hidden" role="dialog" aria-modal="true" aria-labelledby="loginModalTitle" aria-describedby="loginModalDesc" onclick="if(event.target===this)closeLoginModal()">
    148. 

  148.   <div class="login-modal">
    149. 

  149.     <div class="login-modal-title" id="loginModalTitle">温馨提示</div>
    150. 

  150.     <div class="login-modal-desc" id="loginModalDesc">发送消息前请先登录</div>
    151. 

  151.     <div class="login-modal-actions">
    152. 

  152.       <button class="login-modal-btn" type="button" onclick="closeLoginModal()">取消</button>
    153. 

  153.       <button class="login-modal-btn login-modal-btn-primary" id="loginConfirmBtn" type="button" onclick="goToLogin()">去登录</button>
    154. 

  154.     </div>
    155. 

  155.   </div>
    156. 

  156. </div>
    157. 

  157. <script src="https://res.wx.qq.com/open/js/jweixin-1.6.0.js"></script>
    158. 

  158. <script>
    159. 

  159.   // ============================================================
    160. 

  160.   // API 配置 —— 自动检测同主机 9000 端口
    161. 

  161.   // ============================================================
    162. 

  162.   // 走 nginx 反向代理，无需暴露 9000 端口
    163. 

  163.   var API_BASE = '';
    164. 

  164.   // 从外部系统读取 token（优先 URL 参数 → localStorage → cookie）
    165. 

  165.   var TOKEN = (function(){
    166. 

  166.     var p = new URLSearchParams(window.location.search);
    167. 

  167.     var hasTokenParam = p.has('token');
    168. 

  168.     var t = hasTokenParam ? (p.get('token') || '') : (localStorage.getItem('pharma_token') || '');
    169. 

  169.     if (t) localStorage.setItem('pharma_token', t);
    170. 

  170.     else if (hasTokenParam) localStorage.removeItem('pharma_token');
    171. 

  171.     return t;
    172. 

  172.   })();
    173. 

  173. 

  174.   function syncAppHeight(){
    175. 

  175.     var layoutHeight=window.innerHeight||0;
    176. 

  176.     var visualHeight=window.visualViewport&&window.visualViewport.height
    177. 

  177.       ? window.visualViewport.height
    178. 

  178.       : 0;
    179. 

  179.     var viewportHeight=layoutHeight&&visualHeight
    180. 

  180.       ? Math.min(layoutHeight,visualHeight)
    181. 

  181.       : (layoutHeight||visualHeight);
    182. 

  182.     if(viewportHeight){
    183. 

  183.       document.documentElement.style.setProperty('--app-height',Math.round(viewportHeight)+'px');
    184. 

  184.     }
    185. 

  185.   }
    186. 

  186.   syncAppHeight();
    187. 

  187.   window.addEventListener('resize',syncAppHeight);
    188. 

  188.   window.addEventListener('orientationchange',syncAppHeight);
    189. 

  189.   if(window.visualViewport){
    190. 

  190.     window.visualViewport.addEventListener('resize',syncAppHeight);
    191. 

  191.   }
    192. 

  192. 

  193.   function authHeaders(){
    194. 

  194.     var h = {'Content-Type':'application/json'};
    195. 

  195.     if (TOKEN) h['Authorization'] = 'Bearer ' + TOKEN;
    196. 

  196.     return h;
    197. 

  197.   }
    198. 

  198. 

  199.   // 自动获取 guest token（后端鉴权未就绪时静默降级）
    200. 

  200.   async function ensureToken(){
    201. 

  201.     if (TOKEN) return true;
    202. 

  202.     try {
    203. 

  203.       var r = await fetch(API_BASE + '/api/v1/auth/guest', {
    204. 

  204.         method: 'POST', headers: {'Content-Type':'application/json'}
    205. 

  205.       });
    206. 

  206.       if (r.ok) {
    207. 

  207.         var d = await r.json();
    208. 

  208.         TOKEN = d.access_token || d.token || '';
    209. 

  209.         if (TOKEN) { localStorage.setItem('pharma_token', TOKEN); return true; }
    210. 

  210.       }
    211. 

  211.     } catch(e) {}
    212. 

  212.     return false;
    213. 

  213.   }
    214. 

  214. 

  215.   function classifyIntent(q){
    216. 

  216.     var t = q.trim();
    217. 

  217.     if (/怎么吃|吃多少|怎么用|孕妇|儿童用量|副作用|不良反应|禁忌|过敏|能不能|可以吗|安全吗|剂量/.test(t)) return 'usage_guide';
    218. 

  218.     if (/发烧|咳嗽|感冒|腹泻|头疼|该吃什么|推荐用药|退烧|止痛/.test(t)) return 'symptom_advice';
    219. 

  219.     if (/凡例|通则/.test(t)) return 'regulation';
    220. 

  220.     if (/药师|考点|真题/.test(t)) return 'exam_tutor';
    221. 

  221.     return 'drug_query';
    222. 

  222.   }
    223. 

  223.   function intentLabel(i){
    224. 

  224.     var m = {drug_query:'药品查询',usage_guide:'用法用量',symptom_advice:'AI用药建议',regulation:'法规条款',exam_tutor:'考试辅导'};
    225. 

  225.     return m[i]||'综合查询';
    226. 

  226.   }
    227. 

  227.   function tagClass(i){
    228. 

  228.     var m = {drug_query:'tag-drug',usage_guide:'tag-usage',symptom_advice:'tag-symptom',regulation:'tag-regulation',exam_tutor:'tag-exam'};
    229. 

  229.     return m[i]||'tag-fallback';
    230. 

  230.   }
    231. 

  231. 

  232.   function esc(s){if(!s)return'';return s.replace(/&/g,'&amp;').replace(/</g,'&lt;').replace(/>/g,'&gt;')}
    233. 

  233.   function escAttr(s){if(!s)return'';return s.replace(/"/g,'&quot;').replace(/'/g,'&#39;')}
    234. 

  234.   function md2html(h){
    235. 

  235.     if(!h)return'';h=esc(h);
    236. 

  236.   // 保留图片标签不转义
    237. 

  237.   h=h.replace(/&lt;img\s+src="(.+?)"\s*\/?&gt;/g,'<img src="$1" style="max-width:100%">');
    238. 

  238.     h=h.replace(/\*\*(.+?)\*\*/g,'<strong>$1</strong>');
    239. 

  239.     h=h.replace(/⚠️?\s*([^\n<]+)/g,'<span class="warn">$1</span>');
    240. 

  240.     h=h.replace(/\[([^\]]+)\]\((https?:\/\/[^\s<>)]+)\)/g,'<a href="$2" target="_blank" rel="noopener" class="ext-link">$1</a>');
    241. 

  241.     h=h.replace(/——— 原文参考 ———/g,"<h3>📖 原文参考</h3>");
    242. 

  242.     var s='(?:结论|详细说明|注意事项|来源明细|适应症|用法与用量|用法用量|禁忌|不良反应|副作用|药理|药物相互作用|贮藏|特殊人群|安全提醒|就医指征|非药物建议|用药建议|用药方案|通用药学知识|来源汇总|病情评估|处理方案|免责声明|AI 声明|AI声明|来源说明)';
    243. 

  243.     h=h.replace(new RegExp('(?<![【])】\\s*('+s+')','g'),'【$1】');
    244. 

  244.     h=h.replace(new RegExp('(?<![【])('+s+')】','g'),'【$1】');
    245. 

  245.     h=h.replace(/(?<![<br>\n])【(.+?)】/g,'<br>【$1】');
    246. 

  246.     h=h.replace(/\n\n+/g,'</p><p>');h=h.replace(/\n/g,'<br>');
    247. 

  247.     // LLM prompts 产生的栏目标题（大标题样式）
    248. 

  248.   var PROMPT_SECTIONS='结论|详细说明|详细信息|注意事项|来源明细|适应症|用法与用量|用法用量|禁忌|不良反应|副作用|药理|药代动力学|药物相互作用|贮藏|特殊人群|安全提醒|就医指征|非药物建议|用药建议|用药方案|通用药学知识|来源汇总|病情评估|处理方案|免责声明|AI 声明|AI声明|来源说明|记忆技巧|考试频率|知识要点|考点定位|摘要|原文引用|条款出处|关联条款|安全提醒|详细内容|来源说明|药物概况';
    249. 

  249.   var psRe=new RegExp('【('+PROMPT_SECTIONS+')】','g');
    250. 

  250.   h=h.replace(/【(.+?)】/g,function(m,p1){
    251. 

  251.     if(psRe.test(m))return'<h3>【'+p1+'】</h3>';
    252. 

  252.     return'<h3 class="src-section">【'+p1+'】</h3>';
    253. 

  253.   });
    254. 

  254.   psRe.lastIndex=0;
    255. 

  255.     h=h.replace(/<br><h3>/g,'<h3>');h=h.replace(/<\/h3><br>/g,'</h3>');
    256. 

  256.     h=h.replace(/(?:<br>|^)[-*]\s+(.+?)(?=<br>|$)/g,'<li>$1</li>');
    257. 

  257.     h=h.replace(/((?:<li>.*?<\/li>)+)/g,'<ul>$1</ul>');
    258. 

  258.     h=h.replace(/(?:<br>|^)(\d+)\.\s+(.+?)(?=<br>|$)/g,'<li>$2</li>');
    259. 

  259.     h=h.replace(/((?:<li>.*?<\/li>)+)/g,function(m){return m.indexOf('<ul>')>=0?m:'<ol>'+m+'</ol>'});
    260. 

  260.     h='<p>'+h+'</p>';h=h.replace(/<p>(<br>)*<\/p>/g,'');h=h.replace(/<p><\/p>/g,'');
    261. 

  261.     h=h.replace(/(?<!href=")(?<!href=')(?<!">)(?<!'>)(https?:\/\/[^\s<>]+)/g,'<a href="$1" target="_blank" rel="noopener" class="ext-link">$1</a>');
    262. 

  262.     h=h.replace(/——— 原文参考 ———/g,"<h3>📖 原文参考</h3>");
    263. 

  263.     return h;
    264. 

  264.   }
    265. 

  265. 

  266.   var STREAMING=false,streamAbort=null,currentIntent='';
    267. 

  267.   var pendingMedia=null;
    268. 

  268. 

  269.   // ============================================================
    270. 

  270.   // 本地对话持久化 (IndexedDB, 上限 256MB)
    271. 

  271.   // ============================================================
    272. 

  272.   var chatDB=null,chatDBTotalSize=0,chatDBMaxSize=128*1024*1024,chatDBMaxCount=500;
    273. 

  273.   function openChatDB(){
    274. 

  274.     return new Promise(function(resolve,reject){
    275. 

  275.       var req=indexedDB.open('PharmaChat',1);
    276. 

  276.       req.onupgradeneeded=function(e){
    277. 

  277.         var db=e.target.result;
    278. 

  278.         if(!db.objectStoreNames.contains('messages')){db.createObjectStore('messages',{keyPath:'id',autoIncrement:true})}
    279. 

  279.       };
    280. 

  280.       req.onsuccess=function(e){chatDB=e.target.result;resolve()};
    281. 

  281.       req.onerror=function(e){reject(e.target.error)};
    282. 

  282.     });
    283. 

  283.   }
    284. 

  284.   function saveMsgToDB(msg){
    285. 

  285.     if(!chatDB)return;
    286. 

  286.     var tx=chatDB.transaction('messages','readwrite');
    287. 

  287.     var store=tx.objectStore('messages');
    288. 

  288.     store.add(msg);
    289. 

  289.     chatDBTotalSize+=new Blob([JSON.stringify(msg)]).size;
    290. 

  290.     pruneIfNeeded();
    291. 

  291.     pruneByCount();
    292. 

  292.   }
    293. 

  293.   function pruneIfNeeded(){
    294. 

  294.     if(chatDBTotalSize<=chatDBMaxSize)return;
    295. 

  295.     // 淘汰最早的消息，直到低于 80% 上限
    296. 

  296.     var tx=chatDB.transaction('messages','readwrite');
    297. 

  297.     var store=tx.objectStore('messages');
    298. 

  298.     var req=store.openCursor();
    299. 

  299.     req.onsuccess=function(e){
    300. 

  300.       var cursor=e.target.result;
    301. 

  301.       if(cursor&&chatDBTotalSize>chatDBMaxSize*0.8){
    302. 

  302.         chatDBTotalSize-=new Blob([JSON.stringify(cursor.value)]).size;
    303. 

  303.         cursor.delete();
    304. 

  304.         cursor.continue();
    305. 

  305.       }
    306. 

  306.     };
    307. 

  307.   }
    308. 

  308.   function pruneByCount(){
    309. 

  309.     if(!chatDB)return;
    310. 

  310.     var tx=chatDB.transaction('messages','readwrite');
    311. 

  311.     var store=tx.objectStore('messages');
    312. 

  312.     var countReq=store.count();
    313. 

  313.     countReq.onsuccess=function(){
    314. 

  314.       if(countReq.result<=chatDBMaxCount)return;
    315. 

  315.       var excess=countReq.result-chatDBMaxCount;
    316. 

  316.       var cursorReq=store.openCursor();
    317. 

  317.       cursorReq.onsuccess=function(e){
    318. 

  318.         var cursor=e.target.result;
    319. 

  319.         if(cursor&&excess>0){
    320. 

  320.           cursor.delete();
    321. 

  321.           excess--;
    322. 

  322.           cursor.continue();
    323. 

  323.         }
    324. 

  324.       };
    325. 

  325.     };
    326. 

  326.   }
    327. 

  327.   function loadChatFromDB(){
    328. 

  328.     return new Promise(function(resolve){
    329. 

  329.       if(!chatDB){resolve([]);return}
    330. 

  330.       var tx=chatDB.transaction('messages','readonly');
    331. 

  331.       var store=tx.objectStore('messages');
    332. 

  332.       var req=store.getAll();
    333. 

  333.       req.onsuccess=function(){
    334. 

  334.         var msgs=req.result||[];
    335. 

  335.         chatDBTotalSize=0;
    336. 

  336.         for(var i=0;i<msgs.length;i++){chatDBTotalSize+=new Blob([JSON.stringify(msgs[i])]).size}
    337. 

  337.         resolve(msgs);
    338. 

  338.       };
    339. 

  339.       req.onerror=function(){resolve([])};
    340. 

  340.     });
    341. 

  341.   }
    342. 

  342.   ;
    343. 

  343.   async function restoreChat(){
    344. 

  344.     var msgs=await loadChatFromDB();
    345. 

  345.     // IndexedDB 为空时（微信 WebView 等场景），从后端恢复
    346. 

  346.     if(!msgs.length){
    347. 

  347.       try{
    348. 

  348.         var r=await fetch(API_BASE+'/api/v1/chat/recent-messages?limit=50',{headers:authHeaders()});
    349. 

  349.         if(r.ok){ var d=await r.json(); msgs=d.messages||[]; }
    350. 

  350.       }catch(e){}
    351. 

  351.     }
    352. 

  352.     if(!msgs.length)return;
    353. 

  353.     renderMessages(msgs);
    354. 

  354.   }
    355. 

  355.   function renderMessages(msgs){
    356. 

  356.     var w=document.getElementById('chat').querySelector('.welcome');if(w)w.remove();
    357. 

  357.     for(var i=0;i<msgs.length;i++){
    358. 

  358.       var m=msgs[i],div=document.createElement('div');
    359. 

  359.       div.className='msg '+m.role;
    360. 

  360.       if(m.role==='user'){div.textContent=m.content}
    361. 

  361.       else{
    362. 

  362.         var tag=m.intent||'';
    363. 

  363.         var tagHtml=tag?'<div class="tag '+tagClass(tag)+'">'+intentLabel(tag)+'</div>':'<div class="tag tag-fallback">AI 药典助手</div>';
    364. 

  364.         div.innerHTML=tagHtml+'<div class="content">'+md2html(m.content)+'</div>';
    365. 

  365.       }
    366. 

  366.       document.getElementById('chat').appendChild(div);
    367. 

  367.     }
    368. 

  368.     document.getElementById('chat').scrollTop=document.getElementById('chat').scrollHeight;
    369. 

  369.   }
    370. 

  370. 

  371.   function onFilePicked(type){
    372. 

  372.     var input=document.getElementById(type==='video'?'videoInput':'imageInput');
    373. 

  373.     var file=input.files[0];if(!file)return;
    374. 

  374.     if(type==='video'&&file.size>50*1024*1024){alert('视频不能超过50MB');input.value='';return}
    375. 

  375.     if(type==='image'&&file.size>7*1024*1024){alert('图片不能超过7MB');input.value='';return}
    376. 

  376.     var reader=new FileReader();
    377. 

  377.     reader.onload=function(e){
    378. 

  378.       var b64=e.target.result.split(',')[1];
    379. 

  379.       pendingMedia={type:type,base64:b64,mime:file.type||(type==='video'?'video/mp4':'image/jpeg'),name:file.name};
    380. 

  380.       var preview=document.getElementById('previewArea');preview.style.display='flex';
    381. 

  381.       document.getElementById('previewLabel').textContent=(type==='video'?'🎬 ':'📷 ')+file.name;
    382. 

  382.       if(type==='image'){
    383. 

  383.         document.getElementById('previewThumb').src=e.target.result;document.getElementById('previewThumb').style.display='block';
    384. 

  384.         document.getElementById('previewVid').style.display='none';
    385. 

  385.       }else{
    386. 

  386.         document.getElementById('previewVid').src=e.target.result;document.getElementById('previewVid').style.display='block';
    387. 

  387.         document.getElementById('previewThumb').style.display='none';
    388. 

  388.       }
    389. 

  389.       var inp=document.getElementById('userInput');
    390. 

  390.       if(!inp.value.trim())inp.placeholder=type==='video'?'视频已就绪，可输入补充问题...':'图片已就绪，可输入补充问题...';
    391. 

  391.     };
    392. 

  392.     reader.readAsDataURL(file);
    393. 

  393.   }
    394. 

  394.   function clearMedia(){
    395. 

  395.     pendingMedia=null;
    396. 

  396.     document.getElementById('previewArea').style.display='none';
    397. 

  397.     document.getElementById('imageInput').value='';
    398. 

  398.     document.getElementById('videoInput').value='';
    399. 

  399.     document.getElementById('previewThumb').style.display='none';
    400. 

  400.     document.getElementById('previewVid').style.display='none';
    401. 

  401.     document.getElementById('userInput').placeholder='输入药品问题...';
    402. 

  402.   }
    403. 

  403. 

  404.   function addMsg(role,text,streaming,intent){
    405. 

  405.     var chat=document.getElementById('chat'),div=document.createElement('div');
    406. 

  406.     div.className='msg '+role+(streaming?' streaming':'');
    407. 

  407.     if(role==='user'){div.textContent=text}else{
    408. 

  408.       var tag=intent||currentIntent||'';
    409. 

  409.       var tagHtml=tag?'<div class="tag '+tagClass(tag)+'">'+intentLabel(tag)+'</div>':'<div class="tag tag-fallback">AI 药典助手</div>';
    410. 

  410.       div.innerHTML=tagHtml+'<div class="content">'+(text?md2html(text):'')+(streaming?'<span class="cursor">|</span>':'')+'</div>';
    411. 

  411.     }
    412. 

  412.     chat.appendChild(div);chat.scrollTop=chat.scrollHeight;return div;
    413. 

  413.   }
    414. 

  414. 

  415.   async function streamAsk(query,media,aiDiv,contentDiv){
    416. 

  416.     var endpoint,body;
    417. 

  417.     if(media&&media.type==='image'){
    418. 

  418.       endpoint=API_BASE+'/api/v1/chat/stream-image';
    419. 

  419.       body=JSON.stringify({imageBase64:media.base64,mimeType:media.mime,message:query});
    420. 

  420.     }else if(media&&media.type==='video'){
    421. 

  421.       endpoint=API_BASE+'/api/v1/chat/stream-multimodal';
    422. 

  422.       body=JSON.stringify({mediaType:'video',mediaBase64:media.base64,mediaMime:media.mime,message:query});
    423. 

  423.     }else{
    424. 

  424.       endpoint=API_BASE+'/api/v1/chat/stream';
    425. 

  425.       body=JSON.stringify({message:query});
    426. 

  426.     }
    427. 

  427.     try{
    428. 

  428.       var ctrl=streamAbort?streamAbort:new AbortController();
    429. 

  429.       var r=await fetch(endpoint,{method:'POST',headers:authHeaders(),body:body,signal:ctrl.signal});
    430. 

  430.       if(r.status===401){showLoginModal();aiDiv.classList.remove('streaming');STREAMING=false;resetSendBtn();contentDiv.innerHTML=md2html('请先登录后再提问');return}
    431. 

  431.       if(!r.ok){contentDiv.innerHTML=md2html('请求失败: HTTP '+r.status);aiDiv.classList.remove('streaming');STREAMING=false;resetSendBtn();return}
    432. 

  432.       sourcesData=[];
    433. 

  433.       var reader=r.body.getReader(),decoder=new TextDecoder(),buffer='',fullText='',eventType='';
    434. 

  434.       while(true){
    435. 

  435.         var{ done, value }=await reader.read();
    436. 

  436.         if(done)break;
    437. 

  437.         buffer+=decoder.decode(value,{stream:true});
    438. 

  438.         var lines=buffer.split('\n');buffer=lines.pop()||'';
    439. 

  439.         for(var i=0;i<lines.length;i++){
    440. 

  440.           var line=lines[i].trim();
    441. 

  441.           if(!line){eventType='';continue}
    442. 

  442.           if(line.startsWith('event:')){eventType=line.substring(6).trim();continue}
    443. 

  443.           if(line.startsWith('data:')){
    444. 

  444.             var data=line.substring(5).trim();
    445. 

  445.             if(data==='[DONE]')continue;
    446. 

  446.             if(eventType==='status'){
    447. 

  447.               contentDiv.innerHTML='<div class="thinking"><span class="think-dot"></span> '+esc(data)+'</div>';
    448. 

  448.               document.getElementById('chat').scrollTop=document.getElementById('chat').scrollHeight;
    449. 

  449.               continue;
    450. 

  450.             }
    451. 

  451.             if(eventType==='intent'){currentIntent=data;var tagEl=aiDiv.querySelector('.tag');if(tagEl){tagEl.textContent=intentLabel(data);tagEl.className='tag '+tagClass(data)}continue}
    452. 

  452.             if(eventType==='meta'){
    453. 

  453.               try{var meta=JSON.parse(data);if(meta.sources&&meta.sources.length>0)sourcesData=meta.sources}catch(e){}
    454. 

  454.               continue;
    455. 

  455.             }
    456. 

  456.             fullText+=data;
    457. 

  457.             contentDiv.innerHTML=md2html(fullText)+'<span class="cursor">|</span>';
    458. 

  458.             document.getElementById('chat').scrollTop=document.getElementById('chat').scrollHeight;
    459. 

  459.             eventType='';
    460. 

  460.           }
    461. 

  461.         }
    462. 

  462.       }
    463. 

  463.       contentDiv.innerHTML=md2html(fullText)+buildSourceTags();var c=contentDiv.querySelector('.cursor');if(c)c.remove();
    464. 

  464.     }catch(e){
    465. 

  465.       if(e.name==='AbortError'){contentDiv.innerHTML=md2html(fullText+' <span style="color:var(--rd)">已停止</span>')+buildSourceTags();}
    466. 

  466.       else{contentDiv.innerHTML=md2html('连接失败: '+esc(e.message));}
    467. 

  467.     }
    468. 

  468.     aiDiv.classList.remove('streaming');STREAMING=false;streamAbort=null;resetSendBtn();
    469. 

  469.     document.getElementById('chat').scrollTop=document.getElementById('chat').scrollHeight;
    470. 

  470.   }
    471. 

  471. 

  472.   window.quickAsk=function(t){document.getElementById('userInput').value=t;send()};
    473. 

  473.   function resetSendBtn(){document.getElementById('sendBtn').disabled=false;document.getElementById('stopBtn').style.display='none'}
    474. 

  474.   window.stopCurrent=function(){STREAMING=false;if(streamAbort){streamAbort.abort();streamAbort=null}resetSendBtn()};
    475. 

  475. 

  476.   var loginModalReturnFocus=null;
    477. 

  477.   window.showLoginModal=function(){
    478. 

  478.     var modal=document.getElementById('loginModal');
    479. 

  479.     if(!modal||!modal.classList.contains('hidden'))return;
    480. 

  480.     loginModalReturnFocus=document.activeElement;
    481. 

  481.     modal.classList.remove('hidden');
    482. 

  482.     setTimeout(function(){document.getElementById('loginConfirmBtn').focus()},0);
    483. 

  483.   };
    484. 

  484.   window.closeLoginModal=function(){
    485. 

  485.     var modal=document.getElementById('loginModal');
    486. 

  486.     if(!modal)return;
    487. 

  487.     modal.classList.add('hidden');
    488. 

  488.     if(loginModalReturnFocus&&typeof loginModalReturnFocus.focus==='function')loginModalReturnFocus.focus();
    489. 

  489.     loginModalReturnFocus=null;
    490. 

  490.   };
    491. 

  491.   window.goToLogin=function(){
    492. 

  492.     var redirectPath='/pages/pharmacopoeia/index';
    493. 

  493.     var loginPath='/pages/login/index?redirect='+encodeURIComponent(redirectPath);
    494. 

  494.     var pageParams=new URLSearchParams(window.location.search);
    495. 

  495.     var fromMiniProgram=pageParams.get('source')==='mini_program';
    496. 

  496.     if(fromMiniProgram&&window.wx&&window.wx.miniProgram&&typeof window.wx.miniProgram.redirectTo==='function'){
    497. 

  497.       window.wx.miniProgram.redirectTo({
    498. 

  498.         url:loginPath,
    499. 

  499.         fail:function(){alert('跳转登录页失败，请稍后重试')}
    500. 

  500.       });
    501. 

  501.       return;
    502. 

  502.     }
    503. 

  503. 

  504.     var loginUrl=pageParams.get('login_url')||'';
    505. 

  505.     if(loginUrl){
    506. 

  506.       try{
    507. 

  507.         var parsedLoginUrl=new URL(loginUrl);
    508. 

  508.         var allowedHosts=['h5.kailin.com.cn','h5.findit.ltd','findit.ltd','openwork.dfwy.tech','localhost','127.0.0.1'];
    509. 

  509.         var allowedHost=allowedHosts.indexOf(parsedLoginUrl.hostname)>=0||parsedLoginUrl.hostname.endsWith('.zanliang.com.cn');
    510. 

  510.         if(allowedHost&&(parsedLoginUrl.protocol==='https:'||['localhost','127.0.0.1'].indexOf(parsedLoginUrl.hostname)>=0)){
    511. 

  511.           window.location.href=parsedLoginUrl.href;
    512. 

  512.           return;
    513. 

  513.         }
    514. 

  514.       }catch(e){}
    515. 

  515.     }
    516. 

  516.     alert('请在开邻药惠购小程序内完成登录');
    517. 

  517.   };
    518. 

  518.   document.addEventListener('keydown',function(e){
    519. 

  519.     if(e.key==='Escape')closeLoginModal();
    520. 

  520.   });
    521. 

  521. 

  522.   window.send=async function(){
    523. 

  523.     var input=document.getElementById('userInput'),text=input.value.trim();
    524. 

  524.     var hasMedia=!!pendingMedia;
    525. 

  525.     if(!text&&!hasMedia)return;input.value='';if(STREAMING)return;
    526. 

  526.     // 强鉴权：无 token 时自动获取，失败则弹登录框
    527. 

  527.     if(!TOKEN){
    528. 

  528.       var ok = await ensureToken();
    529. 

  529.       if(!ok){ showLoginModal(); return; }
    530. 

  530.     }
    531. 

  531.     doSend(text,hasMedia?pendingMedia:null);
    532. 

  532.   };
    533. 

  533.   function doSend(text,media){
    534. 

  534.     STREAMING=true;streamAbort=new AbortController();
    535. 

  535.     document.getElementById('sendBtn').disabled=true;document.getElementById('stopBtn').style.display='inline-block';
    536. 

  536.     var w=document.getElementById('chat').querySelector('.welcome');if(w)w.remove();
    537. 

  537.     var userDisplay=text;
    538. 

  538.     if(media){var mi=media.type==='video'?'🎬 [视频] ':'📷 [图片] ';userDisplay=mi+(text||('请分析此'+(media.type==='video'?'视频':'图片')))}
    539. 

  539.     addMsg('user',userDisplay);
    540. 

  540.     var query=text;
    541. 

  541.     if(media&&!text){query='请分析此'+(media.type==='video'?'视频':'图片')+'中的药品信息'}
    542. 

  542.     if(!query){query='请介绍一下自己'}
    543. 

  543.     if(media)pendingMedia=null;if(media)clearMedia();
    544. 

  544.     currentIntent=classifyIntent(query);
    545. 

  545.     var aiDiv=addMsg('ai','',true,currentIntent),contentDiv=aiDiv.querySelector('.content');
    546. 

  546.     contentDiv.innerHTML='<div class="thinking"><span class="think-dot"></span> 检索中...</div>';
    547. 

  547.     streamAsk(query,media,aiDiv,contentDiv);
    548. 

  548.   }
    549. 

  549. 

  550.   function buildSourceTags(){
    551. 

  551.     if(!sourcesData||!sourcesData.length)return'';
    552. 

  552.     // 按药名分组
    553. 

  553.     var groups={},order=[];
    554. 

  554.     for(var i=0;i<sourcesData.length;i++){
    555. 

  555.       var s=sourcesData[i];
    556. 

  556.       if(!s.section||s.section==='正文')continue;
    557. 

  557.       var name=s.name||'未知';
    558. 

  558.       var ver=s.source||s.category||'';
    559. 

  559.       var gkey=name+'|'+ver;
    560. 

  560.       if(!groups[gkey]){groups[gkey]={sections:[],seen:new Set(),name:name,source:ver,drugId:s.drug_id||''};order.push(gkey);}
    561. 

  561.       var key=s.section;
    562. 

  562.       if(!groups[gkey].seen.has(key)){
    563. 

  563.         groups[gkey].seen.add(key);
    564. 

  564.         var excerpt=(s.excerpt||'').replace(/【.+?】/g,'').replace(/来源：.*$/gm,'').trim();
    565. 

  565.         var showExcerpt=excerpt.length>400?excerpt.substring(0,400)+'...':excerpt;
    566. 

  566.         groups[gkey].sections.push({section:key,excerpt:showExcerpt});
    567. 

  567.       }
    568. 

  568.     }
    569. 

  569.     if(!order.length)return'';
    570. 

  570.     var h='<div class="source-tags">';
    571. 

  571.     for(var g=0;g<order.length;g++){
    572. 

  572.       var dn=order[g],grp=groups[dn],cnt=grp.sections.length;
    573. 

  573.       h+='<div style="margin-bottom:10px">';
    574. 

  574.       h+='<div class="src-title">📖 '+esc(dn)+' · '+esc(grp.source)+' （'+cnt+'个栏目）';
    575. 

  575.       h+=' <a href="javascript:void(0)" onclick="switchTab(\'drugs\');loadDrugDetail(\''+escAttr(grp.drugId)+'\')" style="font-size:11px;color:#002FA7">查看详情 →</a></div>';
    576. 

  576.       for(var s=0;s<grp.sections.length;s++){
    577. 

  577.         var sec=grp.sections[s];
    578. 

  578.         h+='<span class="source-tag" onclick="var p=this.parentNode;this.classList.toggle(\'open\')">'+esc(sec.section)+'<div class="src-excerpt"><strong>'+esc(dn)+' · '+esc(sec.source)+'</strong><br><br>'+esc(sec.excerpt)+'</div></span>';
    579. 

  579.       }
    580. 

  580.       h+='</div>';
    581. 

  581.     }
    582. 

  582.     h+='</div>';
    583. 

  583.     return h;
    584. 

  584.   }
    585. 

  585. 

  586.   window.loadDrugDetailBySrc=async function(drugName){
    587. 

  587.     try{
    588. 

  588.       var r=await fetch(API_BASE+'/api/v1/drug/search?keyword='+encodeURIComponent(drugName)+'&pageSize=10',{headers:authHeaders()});
    589. 

  589.       if(r.status===401){showLoginModal();return}
    590. 

  590.       var d=await r.json();var items=d.items||d.data||[];
    591. 

  591.       // 2025年版优先，再精确匹配
    592. 

  592.       items.sort(function(a,b){
    593. 

  593.         var va=a.source_version||'', vb=b.source_version||'';
    594. 

  594.         if(va==='2025年版' && vb!=='2025年版') return -1;
    595. 

  595.         if(vb==='2025年版' && va!=='2025年版') return 1;
    596. 

  596.         return (a.name===drugName?-1:0) - (b.name===drugName?-1:0);
    597. 

  597.       });
    598. 

  598.       if(items.length>0){loadDrugDetail(items[0].drug_id)}
    599. 

  599.       else{alert('未找到药品: '+drugName)}
    600. 

  600.     }catch(e){}
    601. 

  601.   };
    602. 

  602. 

  603.   // 药品库
    604. 

  604.   var ALL_DRUGS=[],drugPage=1,drugTotalPages=1,drugPageSize=20,drugKeyword='';
    605. 

  605.   async function loadDrugList(page){
    606. 

  606.     page=page||1;drugPage=page;
    607. 

  607.     var url=API_BASE+'/api/v1/drug/search?page='+page+'&pageSize='+drugPageSize;
    608. 

  608.     if(drugKeyword) url+='&keyword='+encodeURIComponent(drugKeyword);
    609. 

  609.     try{var r=await fetch(url,{headers:authHeaders()});
    610. 

  610.       if(r.status===401){showLoginModal();return}
    611. 

  611.       var d=await r.json();
    612. 

  612.       ALL_DRUGS=d.items||d.data||[];drugTotalPages=d.total_pages||1;
    613. 

  613.       renderDrugCards(ALL_DRUGS);
    614. 

  614.     }catch(e){ALL_DRUGS=[];renderDrugCards([])}
    615. 

  615.   }
    616. 

  616.   window.searchDrugs=function(){
    617. 

  617.     drugKeyword=(document.getElementById('drugSearchInput').value||'').trim();
    618. 

  618.     loadDrugList(1);
    619. 

  619.     return false;
    620. 

  620.   };
    621. 

  621.   function renderDrugCards(items){
    622. 

  622.     var h='';
    623. 

  623.     if(!items.length){document.getElementById('drugList').innerHTML='<div class="welcome"><div class="icon">📭</div><p>未找到，尝试其他关键词</p></div>';document.getElementById('drugPager').innerHTML='';return}
    624. 

  624.     for(var i=0;i<items.length;i++){var d=items[i];h+='<div class="drug-card" onclick="loadDrugDetail(\''+escAttr(d.drug_id)+'\')"><h3>'+esc(d.name)+'</h3><div class="meta">'+(d.category||'')+' · '+(d.source_version||'')+'</div></div>'}
    625. 

  625.     document.getElementById('drugList').innerHTML=h;
    626. 

  626.     renderPager();
    627. 

  627.   }
    628. 

  628.   function renderPager(){
    629. 

  629.     var h='<div class="pager">';
    630. 

  630.     h+='<button onclick="loadDrugList(1)" '+(drugPage<=1?'disabled':'')+'>首页</button>';
    631. 

  631.     h+='<button onclick="loadDrugList('+(drugPage-1)+')" '+(drugPage<=1?'disabled':'')+'>‹</button>';
    632. 

  632.     var start=Math.max(1,drugPage-2),end=Math.min(drugTotalPages,drugPage+2);
    633. 

  633.     for(var p=start;p<=end;p++){
    634. 

  634.       h+='<button class="'+(p===drugPage?'active':'')+'" onclick="loadDrugList('+p+')">'+p+'</button>';
    635. 

  635.     }
    636. 

  636.     h+='<button onclick="loadDrugList('+(drugPage+1)+')" '+(drugPage>=drugTotalPages?'disabled':'')+'>›</button>';
    637. 

  637.     h+='<button onclick="loadDrugList('+drugTotalPages+')" '+(drugPage>=drugTotalPages?'disabled':'')+'>末页</button>';
    638. 

  638.     h+='<span class="page-info">共 '+drugTotalPages+' 页</span>';
    639. 

  639.     h+='<span class="page-info">跳至</span>';
    640. 

  640.     h+='<input type="number" min="1" max="'+drugTotalPages+'" value="'+drugPage+'" onkeydown="if(event.key===\'Enter\'){var v=parseInt(this.value);if(v>=1&&v<='+drugTotalPages+')loadDrugList(v)}" style="width:48px;padding:6px 4px;border:1px solid #d0d5dd;border-radius:6px;font-size:12px;text-align:center">';
    641. 

  641.     h+='<span class="page-info">页</span>';
    642. 

  642.     h+='<select onchange="drugPageSize=parseInt(this.value);loadDrugList(1)">';
    643. 

  643.     [10,20,50,100].forEach(function(s){h+='<option value="'+s+'"'+(drugPageSize===s?' selected':'')+'>'+s+' 条/页</option>'});
    644. 

  644.     h+='</select>';
    645. 

  645.     h+='</div>';
    646. 

  646.     document.getElementById('drugPager').innerHTML=h;
    647. 

  647.   }
    648. 

  648.   window.loadDrugDetail=async function(drugId){
    649. 

  649.     try{
    650. 

  650.       var r=await fetch(API_BASE+'/api/v1/drug/'+encodeURIComponent(drugId),{headers:authHeaders()});
    651. 

  651.       if(r.status===401){showLoginModal();return}
    652. 

  652.       var d=await r.json();var drug=d.data||d;
    653. 

  653.       var dd=document.getElementById('tabDrugs');
    654. 

  654.       var topBar='<div style="display:flex;align-items:center;gap:10px;margin-bottom:16px;padding-bottom:12px;border-bottom:1px solid #e0e0e0">';
    655. 

  655.       topBar+='<button onclick="showDrugList()" class="btn btn-secondary" style="padding:4px 12px;min-height:auto;font-size:12px">← 返回列表</button>';
    656. 

  656.       topBar+='<span style="font-size:13px;color:var(--sub)">药品详情</span></div>';
    657. 

  657.       var h='<div class="drug-detail">'+topBar;
    658. 

  658.       h+='<h2>'+esc(drug.name||'')+'</h2>';
    659. 

  659.       h+='<div class="info-row">'+(drug.pinyin||'')+' '+(drug.name_en||'')+'</div>';
    660. 

  660.       h+='<div class="info-row">分类: '+(drug.category||'')+(drug.subcategory?' · '+drug.subcategory:'')+'</div>';
    661. 

  661.       h+='<div class="info-row">来源: '+(drug.source_version||'')+' '+(drug.source_volume||'')+(drug.source_page?' P'+drug.source_page:'')+'</div>';
    662. 

  662.       if(drug.sections&&typeof drug.sections==='object'){var keys=Object.keys(drug.sections);
    663. 

  663.         // 快速导航
    664. 

  664.         h+='<div style="margin:14px 0;padding:10px 12px;background:#f8f9fc;border-radius:8px;font-size:12px;line-height:2">';
    665. 

  665.         h+='<span style="color:var(--sub);font-weight:600">快速跳转：</span>';
    666. 

  666.         for(var k=0;k<keys.length;k++){h+='<a href="javascript:void(0)" onclick="document.getElementById(\'sec-'+k+'\').scrollIntoView({behavior:\'smooth\'})" style="margin:0 6px;color:#002FA7;text-decoration:none;white-space:nowrap">'+esc(keys[k])+'</a>'}
    667. 

  667.         h+='</div>';
    668. 

  668.         for(var k=0;k<keys.length;k++){h+='<h3 id="sec-'+k+'">【'+esc(keys[k])+'】</h3><div class="section">'+md2html(drug.sections[keys[k]])+'</div>'}}
    669. 

  669.       var bottomBar='<div style="display:flex;gap:8px;margin-top:20px;padding-top:16px;border-top:1px solid #e0e0e0">';
    670. 

  670.       bottomBar+='<button class="btn btn-secondary" onclick="showDrugList()" style="flex:1">← 返回列表</button>';
    671. 

  671.       bottomBar+='<button class="btn btn-secondary" onclick="switchTab(\'chat\')" style="flex:1">💬 返回对话</button>';
    672. 

  672.       bottomBar+='<button class="btn btn-primary" onclick="switchTab(\'chat\');quickAsk(\''+escAttr(drug.name)+'\')" style="flex:1">💊 询问此药</button>';
    673. 

  673.       bottomBar+='</div>';
    674. 

  674.       h+=bottomBar+'</div>';
    675. 

  675.       dd.innerHTML=h;
    676. 

  676.     }catch(e){document.getElementById('tabDrugs').innerHTML='<div class="welcome"><p>加载失败</p></div>'}
    677. 

  677.   };
    678. 

  678.   window.showDrugList=function(){
    679. 

  679.     document.getElementById('tabDrugs').innerHTML='<div class="search-box"><input id="drugSearchInput" placeholder="搜索药品名称..." oninput="searchDrugs()" value="'+escAttr(drugKeyword)+'"></div><div class="drug-list" id="drugList"></div><div class="drug-pager" id="drugPager"></div>';
    680. 

  680.     renderDrugCards(ALL_DRUGS);
    681. 

  681.   };
    682. 

  682.   window.switchTab=function(tab){
    683. 

  683.     document.querySelectorAll('.nav-btn').forEach(function(b){b.classList.toggle('active',b.dataset.tab===tab)});
    684. 

  684.     document.getElementById('tabChat').classList.toggle('hidden',tab!=='chat');
    685. 

  685.     document.getElementById('tabDrugs').classList.toggle('hidden',tab!=='drugs');
    686. 

  686.     if(tab==='drugs'){
    687. 

  687.     drugKeyword='';drugPage=1;
    688. 

  688.     showDrugList();
    689. 

  689.     document.getElementById('drugList').innerHTML='<div class="welcome"><div class="icon">⏳</div><p>加载中...</p></div>';
    690. 

  690.     document.getElementById('drugPager').innerHTML='';
    691. 

  691.     loadDrugList(1);
    692. 

  692.   }
    693. 

  693.   };
    694. 

  694.   // 初始化：打开本地数据库 → 恢复对话 → 预加载药品列表
    695. 

  695.       (async function init(){
    696. 

  696.         await ensureToken();
    697. 

  697.         await openChatDB();
    698. 

  698.         await restoreChat();
    699. 

  699.         loadDrugList();
    700. 

  700.       })();
    701. 

  701. </script>
    702. 

  702. </body>
    703. 

  703. </html>
    704.