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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:8px 14px;display:flex;align-items:center;gap:12px;flex-shrink:0;position:relative;z-index:10}
    13. 

  13.     
    14. 

  14.     .header .header-title{font-size:16px;font-weight:800;white-space:nowrap;flex-shrink:0}.header .header-desc{font-size:10px;opacity:.85;line-height:1.5;text-align:left}
    15. 

  15.     .nav{display:flex;background:#fff;border-bottom:1px solid #e0e0e0;flex-shrink:0;z-index:10}
    16. 

  16.     .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}
    17. 

  17.     .nav-btn.active{color:var(--bk);border-bottom-color:var(--bk);font-weight:600}
    18. 

  18.     .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}
    19. 

  19.         #tabChat,#tabDrugs{display:flex;flex-direction:column;flex:1;min-height:0;overflow:hidden}
    20. 

  20.     .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}
    21. 

  21.     .msg.user{align-self:flex-end;background:var(--bk);color:#fff;border-radius:var(--radius) var(--radius) 4px var(--radius)}
    22. 

  22.     .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)}
    23. 

  23.     .msg.ai .tag{display:inline-block;font-size:11px;padding:2px 8px;border-radius:10px;margin-bottom:6px;font-weight:600}
    24. 

  24.     .tag-drug{background:var(--bk-l);color:var(--bk)}
    25. 

  25.     .tag-usage{background:var(--rd-l);color:var(--rd)}
    26. 

  26.     .tag-symptom{background:#fff3e0;color:#e65100}
    27. 

  27.     .tag-regulation{background:#f3e5f5;color:#6a1b9a}
    28. 

  28.     .tag-exam{background:#e0f2f1;color:#00695c}
    29. 

  29.     .content p{margin:0 0 12px 0;line-height:1.8;word-break:break-word}
    30. 

  30.     .content p:last-child{margin-bottom:0}
    31. 

  31.     .content strong{color:#111}
    32. 

  32.     .content ul,.content ol{margin:8px 0;padding-left:18px;line-height:1.8}
    33. 

  33.     .content li{margin:4px 0}
    34. 

  34.     .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}
    35. 

  35.     .content h3{font-size:15px;margin:16px 0 8px;color:var(--bk);font-weight:700}
    36. 

  36.     .content h3.src-section{font-size:14px;color:#555;font-weight:600;margin:12px 0 6px}
    37. 

  37.     .content .warn{color:var(--rd);font-weight:600}
    38. 

  38.     .thinking{display:flex;align-items:center;gap:8px;color:var(--sub);font-size:13px;padding:4px 0}
    39. 

  39.     .think-dots{display:inline-flex;align-items:center;gap:4px;flex-shrink:0}
    40. 

  40.     .think-dot{display:inline-block;width:7px;height:7px;border-radius:50%;background:var(--bk);animation:thinkBounce 1.2s infinite ease-in-out both}
    41. 

  41.     .think-dot:nth-child(2){animation-delay:.16s}
    42. 

  42.     .think-dot:nth-child(3){animation-delay:.32s}
    43. 

  43.     @keyframes thinkBounce{0%,80%,100%{transform:scale(.55);opacity:.35;background:var(--bk)}40%{transform:scale(1.15);opacity:1;background:#1a3fbf}}
    44. 

  44.     .think-text{color:var(--bk);background:linear-gradient(90deg,var(--bk) 0%,#8ab0ff 50%,var(--bk) 100%);background-size:200% 100%;-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;animation:thinkShimmer 1.4s linear infinite;font-weight:600}
    45. 

  45.     @keyframes thinkShimmer{0%{background-position:200% 0}100%{background-position:-200% 0}}
    46. 

  46.     .cursor{animation:blink .8s infinite;color:var(--bk);font-weight:700}
    47. 

  47.     @keyframes fadeIn{from{opacity:0;transform:translateY(6px)}to{opacity:1;transform:translateY(0)}}
    48. 

  48.     @keyframes blink{0%,100%{opacity:1}50%{opacity:0}}
    49. 

  49.     .source{margin-top:10px;padding-top:8px;border-top:1px solid #eee;font-size:11px;color:#aaa;line-height:1.6}
    50. 

  50.     .source span{color:#888;font-weight:500}
    51. 

  51.     .source-sep{display:block;margin:16px 0 8px;padding-top:12px;border-top:1px dashed #ddd;color:#999;font-size:12px}
    52. 

  52.     .source-tags{margin-top:12px;padding-top:10px;border-top:1px dashed #ddd}
    53. 

  53.     .source-tags .src-title{font-size:12px;color:#999;margin-bottom:6px}
    54. 

  54.     .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}
    55. 

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

  56.     .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)}
    57. 

  57.     .source-tag.open .src-excerpt{display:block}
    58. 

  58.     .source-tag.open{background:#002FA7;color:#fff}
    59. 

  59.     .source-tag .src-excerpt strong{color:#002FA7;font-size:12px}
    60. 

  60.     .ext-link{color:#002FA7;text-decoration:underline;word-break:break-all}
    61. 

  61.     .ext-link:hover{color:#C41E3A}
    62. 

  62.     .ext-link:visited{color:#6a1b9a}
    63. 

  63.     .brand-recs{margin-top:12px;padding-top:10px;border-top:1px dashed #e0c080}
    64. 

  64.     .brand-recs-title{font-size:12px;color:#b8860b;margin-bottom:8px;font-weight:600}
    65. 

  65.     .brand-card{display:block;background:linear-gradient(135deg,#fffdf5,#fff8e1);border:1px solid #f0d060;border-radius:10px;padding:12px 14px;margin-bottom:8px;text-decoration:none;transition:all .2s;cursor:pointer}
    66. 

  66.     .brand-card:hover{background:linear-gradient(135deg,#fff8e1,#fff3c4);border-color:#d4a017;box-shadow:0 2px 8px rgba(180,130,20,.12);transform:translateY(-1px)}
    67. 

  67.     .brand-card-name{font-size:14px;font-weight:700;color:#8b6914;margin-bottom:4px}
    68. 

  68.     .brand-card-desc{font-size:12px;color:#999074;line-height:1.5}
    69. 

  69.     .brand-card-arrow{float:right;font-size:13px;color:#c4a035;margin-left:8px}
    70. 

  70.     .brand-more-btn{display:block;width:100%;padding:8px;margin-top:6px;background:#fffdf5;border:1px dashed #e0c080;border-radius:8px;font-size:12px;color:#b8860b;cursor:pointer;text-align:center;transition:all .15s}
    71. 

  71.     .brand-more-btn:hover{background:#fff8e1;border-color:#d4a017}
    72. 

  72.     .brand-detail-overlay{position:fixed;inset:0;background:rgba(0,0,0,.4);display:flex;align-items:center;justify-content:center;z-index:200;padding:20px}
    73. 

  73.     .brand-detail-box{background:#fff;border-radius:14px;max-width:420px;width:100%;max-height:85vh;overflow-y:auto;box-shadow:0 8px 32px rgba(0,0,0,.18)}
    74. 

  74.     .brand-detail-header{position:sticky;top:0;background:#fff;padding:16px 18px 10px;border-bottom:1px solid #eee;z-index:1}
    75. 

  75.     .brand-detail-header h2{font-size:17px;color:var(--bk);margin:0 0 4px}
    76. 

  76.     .brand-detail-header .bd-close{float:right;font-size:22px;color:#aaa;cursor:pointer;line-height:1;padding:0 4px;background:none;border:none}
    77. 

  77.     .brand-detail-body{padding:14px 18px 20px}
    78. 

  78.     .brand-detail-body .bd-field{margin-bottom:14px}
    79. 

  79.     .brand-detail-body .bd-label{font-size:12px;color:var(--sub);margin-bottom:4px;font-weight:600}
    80. 

  80.     .brand-detail-body .bd-value{font-size:14px;color:var(--text);line-height:1.7;word-break:break-word}
    81. 

  81.     .brand-detail-body .bd-link{font-size:13px;color:var(--bk);text-decoration:underline;cursor:pointer}
    82. 

  82.     .brand-detail-body .bd-link:hover{color:var(--rd)}
    83. 

  83.     .input-area{display:flex;padding:10px 14px;background:#fff;border-top:1px solid #e0e0e0;gap:8px;flex-shrink:0;z-index:10}
    84. 

  84.         #previewArea{flex-shrink:0}
    85. 

  85.     .input-area input{flex:1;padding:10px 14px;border:1px solid #ddd;border-radius:24px;font-size:14px;outline:none;min-height:44px}
    86. 

  86.     .input-area input:focus{border-color:var(--bk);box-shadow:0 0 0 2px rgba(0,47,167,.12)}
    87. 

  87.     .btn{padding:8px 18px;border:none;border-radius:24px;font-size:14px;font-weight:700;cursor:pointer;min-height:44px;white-space:nowrap}
    88. 

  88.     .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)}
    89. 

  89.     .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)}
    90. 

  90.     .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)}
    91. 

  91.     .btn:disabled{opacity:.4;cursor:default}
    92. 

  92.     .media-btn{display:flex;align-items:center;justify-content:center;width:40px;height:40px;background:var(--bk-l);color:var(--bk);border:2px solid var(--bk);border-radius:50%;font-size:28px;font-weight:700;cursor:pointer;flex-shrink:0;-webkit-user-select:none;user-select:none;transition:all .15s;line-height:1}
    93. 

  93.     .media-btn:hover{background:var(--bk);color:#fff;transform:scale(1.05)}
    94. 

  94.     .media-btn:active{transform:scale(.96)}
    95. 

  95.     
    96. 

  96.     
    97. 

  97.     .tags{display:flex;gap:6px;padding:6px 14px 10px;flex-wrap:wrap;flex-shrink:0}
    98. 

  98.     .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}
    99. 

  99.     .tag-btn:active{background:rgba(0,47,167,.15)}
    100. 

  100.     .welcome{text-align:center;color:var(--sub);padding:40px 20px}
    101. 

  101.     .welcome .icon{font-size:48px;margin-bottom:12px}
    102. 

  102.     .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}
    103. 

  103.     .drug-pager{flex-shrink:0;padding:8px 14px;background:#fff;border-top:1px solid #e0e0e0}
    104. 

  104.     .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}
    105. 

  105.     .drug-card h3{font-size:15px;color:var(--bk);margin-bottom:4px}
    106. 

  106.     .drug-card .meta{font-size:12px;color:var(--sub)}
    107. 

  107.     .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}
    108. 

  108.     .drug-detail h2{font-size:20px;color:var(--bk);margin-bottom:8px}
    109. 

  109.     .drug-detail h3{font-size:15px;color:var(--bk);margin:16px 0 8px}
    110. 

  110.     .drug-detail .info-row{font-size:13px;color:var(--sub);margin:4px 0}
    111. 

  111.     .drug-detail .section{background:var(--card);border-radius:8px;padding:12px;margin:8px 0;font-size:14px;line-height:1.8}
    112. 

  112.     .search-box{padding:10px 14px;background:#fff;border-bottom:1px solid #e0e0e0;flex-shrink:0;display:flex;gap:8px}
    113. 

  113.     .search-box input{flex:1;padding:10px 14px;border:1px solid #ddd;border-radius:24px;font-size:14px;outline:none;min-height:44px}
    114. 

  114.     .search-box input:focus{border-color:var(--bk);box-shadow:0 0 0 2px rgba(0,47,167,.12)}
    115. 

  115.     .search-box button{padding:8px 16px;border:none;border-radius:24px;background:var(--bk);color:#fff;font-size:14px;font-weight:600;cursor:pointer;white-space:nowrap;min-height:44px}
    116. 

  116.     .search-box button:hover{background:#1a3fbf}
    117. 

  117.     .status-bar{font-size:11px;padding:4px 14px;text-align:center;flex-shrink:0}
    118. 

  118.     .hidden{display:none!important}
    119. 

  119.     .pager{display:flex;justify-content:center;align-items:center;gap:4px;flex-wrap:wrap}
    120. 

  120.     .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}
    121. 

  121.     .pager button:hover:not(:disabled){background:#E8EDF8;border-color:#002FA7;color:#002FA7}
    122. 

  122.     .pager button.active{background:#002FA7;color:#fff;border-color:#002FA7;font-weight:600}
    123. 

  123.     .pager button:disabled{opacity:.35;cursor:default}
    124. 

  124.     .pager .page-info{font-size:12px;color:#888;margin:0 4px;white-space:nowrap}
    125. 

  125.     .pager select{padding:6px 8px;appearance:auto}
    126. 

  126.     .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}
    127. 

  127.     .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}
    128. 

  128.     .login-modal-title{padding:24px 24px 8px;color:var(--text);font-size:17px;font-weight:700}
    129. 

  129.     .login-modal-desc{padding:0 24px 24px;color:var(--sub);font-size:14px;line-height:1.6}
    130. 

  130.     .login-modal-actions{display:flex;border-top:1px solid #eee}
    131. 

  131.     .login-modal-btn{flex:1;min-height:50px;border:0;background:#fff;color:var(--text);font-size:16px;cursor:pointer}
    132. 

  132.     .login-modal-btn+.login-modal-btn{border-left:1px solid #eee}
    133. 

  133.     .login-modal-btn:focus-visible{outline:2px solid var(--bk);outline-offset:-3px}
    134. 

  134.     .login-modal-btn-primary{color:var(--bk);font-weight:600}
    135. 

  135. @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{width:36px;height:36px;font-size:24px}.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 .header-title{font-weight:700}.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}}
    136. 

  136.   </style>
    137. 

  137. </head>
    138. 

  138. <body>
    139. 

  139. <div class="header">
    140. 

  140.   <div class="header-title">AI药典温馨提示</div>
    141. 

  141.   <div class="header-desc">内容基于最新版《中华药典》& 通义千问生成<br>仅供学习参考，不构成处方和用药建议</div>
    142. 

  142. </div>
    143. 

  143. <div class="nav">
    144. 

  144.   <button class="nav-btn active" data-tab="chat" onclick="switchTab('chat')">AI 对话</button>
    145. 

  145.   <button class="nav-btn" data-tab="drugs" onclick="switchTab('drugs')">2025中华药典</button>
    146. 

  146. </div>
    147. 

  147. <div id="tabChat">
    148. 

  148.   <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">支持图片上传识别</small></p></div></div>
    149. 

  149.   <div class="tags" id="quickTags"></div>
    150. 

  150.   <div id="previewArea" style="display:none;padding:8px 14px;background:#fffef5;border-top:1px solid #f0e68c;align-items:center;gap:10px;flex-wrap:wrap">
    151. 

  151.     <span id="previewLabel" style="font-size:13px;color:#666;font-weight:500"></span>
    152. 

  152.     <img id="previewThumb" style="max-width:80px;max-height:60px;border-radius:6px;display:none;border:1px solid #ddd">
    153. 

  153.     
    154. 

  154.     <button class="btn btn-secondary" style="font-size:12px;padding:4px 12px;min-height:auto" onclick="clearMedia()">✕ 移除附件</button>
    155. 

  155.   </div>
    156. 

  156.   <div class="input-area">
    157. 

  157.     <input type="file" id="imageInput" accept="image/*" onchange="onFilePicked('image')" style="display:none">
    158. 

  158.     <input id="userInput" placeholder="输入药品问题，或上传图片...">
    159. 

  159.     <button class="btn btn-danger" id="sendBtn" onclick="send()">发送</button>
    160. 

  160.     <span style="display:flex;flex-direction:column;align-items:center;gap:2px;flex-shrink:0;cursor:pointer" onclick="document.getElementById('imageInput').click()"><button class="media-btn" type="button">+</button></span>
    161. 

  161.     <button class="btn btn-secondary" id="stopBtn" onclick="stopCurrent()" style="display:none">停止</button>
    162. 

  162.   </div>
    163. 

  163. </div>
    164. 

  164. <div id="tabDrugs" class="hidden">
    165. 

  165.   <div class="search-box"><input id="drugSearchInput" placeholder="搜索药品名称..." oninput="onSearchInput()"><button onclick="searchDrugs()">搜索</button></div>
    166. 

  166.   <div class="drug-list" id="drugList"></div>
    167. 

  167.   <div class="drug-pager" id="drugPager"></div>
    168. 

  168. </div>
    169. 

  169. <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()">
    170. 

  170.   <div class="login-modal">
    171. 

  171.     <div class="login-modal-title" id="loginModalTitle">温馨提示</div>
    172. 

  172.     <div class="login-modal-desc" id="loginModalDesc">发送消息前请先登录</div>
    173. 

  173.     <div class="login-modal-actions">
    174. 

  174.       <button class="login-modal-btn" type="button" onclick="closeLoginModal()">取消</button>
    175. 

  175.       <button class="login-modal-btn login-modal-btn-primary" id="loginConfirmBtn" type="button" onclick="goToLogin()">去登录</button>
    176. 

  176.     </div>
    177. 

  177.   </div>
    178. 

  178. </div>
    179. 

  179. <script src="https://res.wx.qq.com/open/js/jweixin-1.6.0.js"></script>
    180. 

  180. <script>
    181. 

  181.   // ============================================================
    182. 

  182.   // API 配置 —— 自动检测同主机 9000 端口
    183. 

  183.   // ============================================================
    184. 

  184.   // 走 nginx 反向代理，无需暴露 9000 端口
    185. 

  185.   var API_BASE = '';
    186. 

  186.   // Token 仅从外部系统通过 URL 参数 ?token=xxx 传入，不持久化存储
    187. 

  187.   // 退出页面即失效，重新进入必须再次通过 URL 传入
    188. 

  188.   var TOKEN = (function(){
    189. 

  189.     var p = new URLSearchParams(window.location.search);
    190. 

  190.     var t = p.get('token') || '';
    191. 

  191.     // 兼容外部系统可能传入额外前缀或引号的情况
    192. 

  192.     t = t.replace(/^["']+/, '').replace(/["']+$/, ''); // 去掉首尾引号
    193. 

  193.     if (t.startsWith('Bearer ')) t = t.substring(7);     // 去掉多余 Bearer 前缀
    194. 

  194.     return t;
    195. 

  195.   })();
    196. 

  196. 

  197.   function syncAppHeight(){
    198. 

  198.     var layoutHeight=window.innerHeight||0;
    199. 

  199.     var visualHeight=window.visualViewport&&window.visualViewport.height
    200. 

  200.       ? window.visualViewport.height
    201. 

  201.       : 0;
    202. 

  202.     var viewportHeight=layoutHeight&&visualHeight
    203. 

  203.       ? Math.min(layoutHeight,visualHeight)
    204. 

  204.       : (layoutHeight||visualHeight);
    205. 

  205.     if(viewportHeight){
    206. 

  206.       document.documentElement.style.setProperty('--app-height',Math.round(viewportHeight)+'px');
    207. 

  207.     }
    208. 

  208.   }
    209. 

  209.   syncAppHeight();
    210. 

  210.   window.addEventListener('resize',syncAppHeight);
    211. 

  211.   window.addEventListener('orientationchange',syncAppHeight);
    212. 

  212.   if(window.visualViewport){
    213. 

  213.     window.visualViewport.addEventListener('resize',syncAppHeight);
    214. 

  214.   }
    215. 

  215. 

  216.   // ============================================================
    217. 

  217.   // 用户行为埋点（fire-and-forget，不影响主流程）
    218. 

  218.   // ============================================================
    219. 

  219.   function track(type, data){
    220. 

  220.     var merged = data || {};
    221. 

  221.     merged.source = 'ai_pharmacopoeia';
    222. 

  222.     var payload = {event_type: type, event_data: merged, page_url: window.location.href};
    223. 

  223.     var h = {'Content-Type': 'application/json'};
    224. 

  224.     if (TOKEN) h['Authorization'] = 'Bearer ' + TOKEN;
    225. 

  225.     try {
    226. 

  226.       fetch(API_BASE + '/api/v1/analytics/events', {
    227. 

  227.         method: 'POST', headers: h, body: JSON.stringify(payload), keepalive: true
    228. 

  228.       }).catch(function(){});
    229. 

  229.     } catch(e) {}
    230. 

  230.   }
    231. 

  231. 

  232. 

  233.   function authHeaders(){
    234. 

  234.     var h = {'Content-Type':'application/json'};
    235. 

  235.     if (TOKEN) h['Authorization'] = 'Bearer ' + TOKEN;
    236. 

  236.     return h;
    237. 

  237.   }
    238. 

  238. 

  239.   function classifyIntent(q){
    240. 

  240.     var t = q.trim();
    241. 

  241.     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';
    242. 

  242.     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';
    243. 

  243.     if (/凡例|通则/.test(t)) return 'regulation';
    244. 

  244.     if (/药师|考点|真题/.test(t)) return 'exam_tutor';
    245. 

  245.     return 'drug_query';
    246. 

  246.   }
    247. 

  247.   function intentLabel(i){
    248. 

  248.     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'};
    249. 

  249.     return m[i]||'综合查询';
    250. 

  250.   }
    251. 

  251.   function tagClass(i){
    252. 

  252.     var m = {drug_query:'tag-drug',usage_guide:'tag-usage',symptom_advice:'tag-symptom',regulation:'tag-regulation',exam_tutor:'tag-exam'};
    253. 

  253.     return m[i]||'tag-fallback';
    254. 

  254.   }
    255. 

  255. 

  256.   function esc(s){if(!s)return'';return s.replace(/&/g,'&amp;').replace(/</g,'&lt;').replace(/>/g,'&gt;')}
    257. 

  257.   function escAttr(s){if(!s)return'';return s.replace(/"/g,'&quot;').replace(/'/g,'&#39;')}
    258. 

  258.   function md2html(h){
    259. 

  259.     if(!h)return'';h=esc(h);
    260. 

  260.   // 保留图片标签不转义
    261. 

  261.   h=h.replace(/&lt;img\s+src="(.+?)"[^>]*\/?&gt;/g,'<img src="$1" style="max-width:100%">');
    262. 

  262.     h=h.replace(/\*\*(.+?)\*\*/g,'<strong>$1</strong>');
    263. 

  263.     h=h.replace(/⚠️?\s*([^\n<]+)/g,'<span class="warn">$1</span>');
    264. 

  264.     h=h.replace(/\[([^\]]+)\]\((https?:\/\/[^\s<>)]+)\)/g,'<a href="$2" target="_blank" rel="noopener" class="ext-link">$1</a>');
    265. 

  265.     h=h.replace(/——— 原文参考 ———/g,"<h3>📖 原文参考</h3>");
    266. 

  266.     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)';
    267. 

  267.     h=h.replace(new RegExp('(?<![【])】\\s*('+s+')','g'),'【$1】');
    268. 

  268.     h=h.replace(new RegExp('(?<![【])('+s+')】','g'),'【$1】');
    269. 

  269.     h=h.replace(/(?<![<br>\n])【(.+?)】/g,'<br>【$1】');
    270. 

  270.     h=h.replace(/\n\n+/g,'</p><p>');h=h.replace(/\n/g,'<br>');
    271. 

  271.     // LLM prompts 产生的栏目标题（大标题样式）
    272. 

  272.   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';
    273. 

  273.   var psRe=new RegExp('【('+PROMPT_SECTIONS+')】','g');
    274. 

  274.   h=h.replace(/【(.+?)】/g,function(m,p1){
    275. 

  275.     if(psRe.test(m))return'<h3>【'+p1+'】</h3>';
    276. 

  276.     return'<h3 class="src-section">【'+p1+'】</h3>';
    277. 

  277.   });
    278. 

  278.   psRe.lastIndex=0;
    279. 

  279.     h=h.replace(/<br><h3>/g,'<h3>');h=h.replace(/<\/h3><br>/g,'</h3>');
    280. 

  280.     h=h.replace(/(?:<br>|^)[-*]\s+(.+?)(?=<br>|$)/g,'<li>$1</li>');
    281. 

  281.     h=h.replace(/((?:<li>.*?<\/li>)+)/g,'<ul>$1</ul>');
    282. 

  282.     h=h.replace(/(?:<br>|^)(\d+)\.\s+(.+?)(?=<br>|$)/g,'<li>$2</li>');
    283. 

  283.     h=h.replace(/((?:<li>.*?<\/li>)+)/g,function(m){return m.indexOf('<ul>')>=0?m:'<ol>'+m+'</ol>'});
    284. 

  284.     h='<p>'+h+'</p>';h=h.replace(/<p>(<br>)*<\/p>/g,'');h=h.replace(/<p><\/p>/g,'');
    285. 

  285.     h=h.replace(/(?<!href=")(?<!href=')(?<!">)(?<!'>)(https?:\/\/[^\s<>]+)/g,'<a href="$1" target="_blank" rel="noopener" class="ext-link">$1</a>');
    286. 

  286.     h=h.replace(/——— 原文参考 ———/g,"<h3>📖 原文参考</h3>");
    287. 

  287.     return h;
    288. 

  288.   }
    289. 

  289. 

  290.   var STREAMING=false,streamAbort=null,currentIntent='';
    291. 

  291.   var sourcesData=[],brandRecsData=[];
    292. 

  292.   var pendingMedia=null;
    293. 

  293. 

  294.   // ============================================================
    295. 

  295.   // 本地对话持久化 (IndexedDB, 上限 256MB)
    296. 

  296.   // ============================================================
    297. 

  297.   var chatDB=null,chatDBTotalSize=0,chatDBMaxSize=128*1024*1024,chatDBMaxCount=500;
    298. 

  298.   function openChatDB(){
    299. 

  299.     return new Promise(function(resolve,reject){
    300. 

  300.       var req=indexedDB.open('PharmaChat',1);
    301. 

  301.       req.onupgradeneeded=function(e){
    302. 

  302.         var db=e.target.result;
    303. 

  303.         if(!db.objectStoreNames.contains('messages')){db.createObjectStore('messages',{keyPath:'id',autoIncrement:true})}
    304. 

  304.       };
    305. 

  305.       req.onsuccess=function(e){chatDB=e.target.result;resolve()};
    306. 

  306.       req.onerror=function(e){reject(e.target.error)};
    307. 

  307.     });
    308. 

  308.   }
    309. 

  309.   function saveMsgToDB(msg){
    310. 

  310.     if(!chatDB)return;
    311. 

  311.     var tx=chatDB.transaction('messages','readwrite');
    312. 

  312.     var store=tx.objectStore('messages');
    313. 

  313.     store.add(msg);
    314. 

  314.     chatDBTotalSize+=new Blob([JSON.stringify(msg)]).size;
    315. 

  315.     pruneIfNeeded();
    316. 

  316.     pruneByCount();
    317. 

  317.   }
    318. 

  318.   function pruneIfNeeded(){
    319. 

  319.     if(chatDBTotalSize<=chatDBMaxSize)return;
    320. 

  320.     // 淘汰最早的消息，直到低于 80% 上限
    321. 

  321.     var tx=chatDB.transaction('messages','readwrite');
    322. 

  322.     var store=tx.objectStore('messages');
    323. 

  323.     var req=store.openCursor();
    324. 

  324.     req.onsuccess=function(e){
    325. 

  325.       var cursor=e.target.result;
    326. 

  326.       if(cursor&&chatDBTotalSize>chatDBMaxSize*0.8){
    327. 

  327.         chatDBTotalSize-=new Blob([JSON.stringify(cursor.value)]).size;
    328. 

  328.         cursor.delete();
    329. 

  329.         cursor.continue();
    330. 

  330.       }
    331. 

  331.     };
    332. 

  332.   }
    333. 

  333.   function pruneByCount(){
    334. 

  334.     if(!chatDB)return;
    335. 

  335.     var tx=chatDB.transaction('messages','readwrite');
    336. 

  336.     var store=tx.objectStore('messages');
    337. 

  337.     var countReq=store.count();
    338. 

  338.     countReq.onsuccess=function(){
    339. 

  339.       if(countReq.result<=chatDBMaxCount)return;
    340. 

  340.       var excess=countReq.result-chatDBMaxCount;
    341. 

  341.       var cursorReq=store.openCursor();
    342. 

  342.       cursorReq.onsuccess=function(e){
    343. 

  343.         var cursor=e.target.result;
    344. 

  344.         if(cursor&&excess>0){
    345. 

  345.           cursor.delete();
    346. 

  346.           excess--;
    347. 

  347.           cursor.continue();
    348. 

  348.         }
    349. 

  349.       };
    350. 

  350.     };
    351. 

  351.   }
    352. 

  352.   function loadChatFromDB(){
    353. 

  353.     return new Promise(function(resolve){
    354. 

  354.       if(!chatDB){resolve([]);return}
    355. 

  355.       var tx=chatDB.transaction('messages','readonly');
    356. 

  356.       var store=tx.objectStore('messages');
    357. 

  357.       var req=store.getAll();
    358. 

  358.       req.onsuccess=function(){
    359. 

  359.         var msgs=req.result||[];
    360. 

  360.         chatDBTotalSize=0;
    361. 

  361.         for(var i=0;i<msgs.length;i++){chatDBTotalSize+=new Blob([JSON.stringify(msgs[i])]).size}
    362. 

  362.         resolve(msgs);
    363. 

  363.       };
    364. 

  364.       req.onerror=function(){resolve([])};
    365. 

  365.     });
    366. 

  366.   }
    367. 

  367.   ;
    368. 

  368.   async function restoreChat(){
    369. 

  369.     var msgs=await loadChatFromDB();
    370. 

  370.     // IndexedDB 为空时（微信 WebView 等场景），从后端恢复
    371. 

  371.     if(!msgs.length){
    372. 

  372.       try{
    373. 

  373.         var r=await fetch(API_BASE+'/api/v1/chat/recent-messages?limit=50',{headers:authHeaders()});
    374. 

  374.         if(r.ok){ var d=await r.json(); msgs=d.messages||[]; }
    375. 

  375.       }catch(e){}
    376. 

  376.     }
    377. 

  377.     if(!msgs.length)return;
    378. 

  378.     renderMessages(msgs);
    379. 

  379.   }
    380. 

  380.   /** 统一渲染 AI 消息的内部 HTML（标签+内容+来源+品牌推荐） */
    381. 

  381.   function buildAiInnerHtml(m) {
    382. 

  382.     var tag=m.intent||'';
    383. 

  383.     var tagHtml=tag?'<div class="tag '+tagClass(tag)+'">'+intentLabel(tag)+'</div>':'<div class="tag tag-fallback">AI 药典助手</div>';
    384. 

  384.     var h = tagHtml+'<div class="content">'+md2html(m.content||'')+'</div>';
    385. 

  385.     if (m.sources && m.sources.length) {
    386. 

  386.       sourcesData = m.sources;
    387. 

  387.       h += buildSourceTags();
    388. 

  388.       sourcesData = [];
    389. 

  389.     }
    390. 

  390.     if (m.brand_recommendations && m.brand_recommendations.length) {
    391. 

  391.       brandRecsData = m.brand_recommendations;
    392. 

  392.       h += buildBrandRecs();
    393. 

  393.       brandRecsData = [];
    394. 

  394.     }
    395. 

  395.     return h;
    396. 

  396.   }
    397. 

  397. 

  398.   function renderMessages(msgs){
    399. 

  399.     var w=document.getElementById('chat').querySelector('.welcome');if(w)w.remove();
    400. 

  400.     for(var i=0;i<msgs.length;i++){
    401. 

  401.       var m=msgs[i],div=document.createElement('div');
    402. 

  402.       var roleClass=m.role==='assistant'?'ai':m.role;
    403. 

  403.       div.className='msg '+roleClass;
    404. 

  404.       if(m.role==='user'){div.textContent=m.content}
    405. 

  405.       else{ div.innerHTML = buildAiInnerHtml(m); }
    406. 

  406.       document.getElementById('chat').appendChild(div);
    407. 

  407.     }
    408. 

  408.     document.getElementById('chat').scrollTop=document.getElementById('chat').scrollHeight;
    409. 

  409.   }
    410. 

  410. 

  411.   function onFilePicked(type){
    412. 

  412.     var input=document.getElementById('imageInput');
    413. 

  413.     var file=input.files[0];if(!file)return;
    414. 

  414.     if(file.size>7*1024*1024){alert('图片不能超过7MB');input.value='';return}
    415. 

  415.     var reader=new FileReader();
    416. 

  416.     reader.onload=function(e){
    417. 

  417.       var b64=e.target.result.split(',')[1];
    418. 

  418.       pendingMedia={type:'image',base64:b64,mime:file.type||'image/jpeg',name:file.name};
    419. 

  419.       var preview=document.getElementById('previewArea');preview.style.display='flex';
    420. 

  420.       document.getElementById('previewLabel').textContent='📷 '+file.name;
    421. 

  421.       document.getElementById('previewThumb').src=e.target.result;document.getElementById('previewThumb').style.display='block';
    422. 

  422.       var inp=document.getElementById('userInput');
    423. 

  423.       if(!inp.value.trim())inp.placeholder='图片已就绪，可输入补充问题...';
    424. 

  424.     };
    425. 

  425.     reader.readAsDataURL(file);
    426. 

  426.   }
    427. 

  427.   function clearMedia(){
    428. 

  428.     pendingMedia=null;
    429. 

  429.     document.getElementById('previewArea').style.display='none';
    430. 

  430.     document.getElementById('imageInput').value='';
    431. 

  431.     document.getElementById('previewThumb').style.display='none';
    432. 

  432.     document.getElementById('userInput').placeholder='输入药品问题...';
    433. 

  433.   }
    434. 

  434. 

  435.   function addMsg(role,text,streaming,intent){
    436. 

  436.     var chat=document.getElementById('chat'),div=document.createElement('div');
    437. 

  437.     div.className='msg '+role+(streaming?' streaming':'');
    438. 

  438.     if(role==='user'){div.textContent=text}else{
    439. 

  439.       var tag=intent||currentIntent||'';
    440. 

  440.       var tagHtml=tag?'<div class="tag '+tagClass(tag)+'">'+intentLabel(tag)+'</div>':'<div class="tag tag-fallback">AI 药典助手</div>';
    441. 

  441.       div.innerHTML=tagHtml+'<div class="content">'+(text?md2html(text):'')+(streaming?'<span class="cursor">|</span>':'')+'</div>';
    442. 

  442.     }
    443. 

  443.     chat.appendChild(div);chat.scrollTop=chat.scrollHeight;return div;
    444. 

  444.   }
    445. 

  445. 

  446.   async function streamAsk(query,media,aiDiv,contentDiv){
    447. 

  447.     var endpoint,body;
    448. 

  448.     if(media&&media.type==='image'){
    449. 

  449.       endpoint=API_BASE+'/api/v1/chat/stream-image';
    450. 

  450.       body=JSON.stringify({imageBase64:media.base64,mimeType:media.mime,message:query});
    451. 

  451.     }else{
    452. 

  452.       endpoint=API_BASE+'/api/v1/chat/stream';
    453. 

  453.       body=JSON.stringify({message:query});
    454. 

  454.     }
    455. 

  455.     try{
    456. 

  456.       var ctrl=streamAbort?streamAbort:new AbortController();
    457. 

  457.       var r=await fetch(endpoint,{method:'POST',headers:authHeaders(),body:body,signal:ctrl.signal});
    458. 

  458.       if(r.status===401){console.warn('需要登录');aiDiv.classList.remove('streaming');STREAMING=false;resetSendBtn();contentDiv.innerHTML=md2html('请先登录后再提问');return}
    459. 

  459.       if(r.status===429){
    460. 

  460.         var detail='请求过于频繁，请稍后再试';
    461. 

  461.         try{var b=await r.json();detail=b.detail||b.message||b.error||detail}catch(e){}
    462. 

  462.         contentDiv.innerHTML=md2html(detail);aiDiv.classList.remove('streaming');STREAMING=false;resetSendBtn();return
    463. 

  463.       }
    464. 

  464.       if(!r.ok){contentDiv.innerHTML=md2html('请求失败: HTTP '+r.status);aiDiv.classList.remove('streaming');STREAMING=false;resetSendBtn();return}
    465. 

  465.       sourcesData=[];
    466. 

  466.       brandRecsData=[];
    467. 

  467.       var reader=r.body.getReader(),decoder=new TextDecoder(),buffer='',fullText='',eventType='';
    468. 

  468.       while(true){
    469. 

  469.         var{ done, value }=await reader.read();
    470. 

  470.         if(done)break;
    471. 

  471.         buffer+=decoder.decode(value,{stream:true});
    472. 

  472.         var lines=buffer.split('\n');buffer=lines.pop()||'';
    473. 

  473.         for(var i=0;i<lines.length;i++){
    474. 

  474.           var line=lines[i].trim();
    475. 

  475.           if(!line){eventType='';continue}
    476. 

  476.           if(line.startsWith('event:')){eventType=line.substring(6).trim();continue}
    477. 

  477.           if(line.startsWith('data:')){
    478. 

  478.             var data=line.substring(5).trim();
    479. 

  479.             if(data==='[DONE]')continue;
    480. 

  480.             if(eventType==='status'){
    481. 

  481.               contentDiv.innerHTML='<div class="thinking"><span class="think-dots"><span class="think-dot"></span><span class="think-dot"></span><span class="think-dot"></span></span><span class="think-text">'+esc(data)+'</span><span class="cursor">|</span></div>';
    482. 

  482.               document.getElementById('chat').scrollTop=document.getElementById('chat').scrollHeight;
    483. 

  483.               continue;
    484. 

  484.             }
    485. 

  485.             if(eventType==='intent'){currentIntent=data;var tagEl=aiDiv.querySelector('.tag');if(tagEl){tagEl.textContent=intentLabel(data);tagEl.className='tag '+tagClass(data)}continue}
    486. 

  486.             if(eventType==='meta'){
    487. 

  487.               try{var meta=JSON.parse(data);if(meta.sources&&meta.sources.length>0)sourcesData=meta.sources}catch(e){}
    488. 

  488.               continue;
    489. 

  489.             }
    490. 

  490.             if(eventType==='brand_recommend'){
    491. 

  491.               try{var br=JSON.parse(data);brandRecsData=br.recommendations||[];}catch(e){brandRecsData=[]}
    492. 

  492.               continue;
    493. 

  493.             }
    494. 

  494.             fullText+=data;
    495. 

  495.             if(fullText.trim()){
    496. 

  496.               contentDiv.innerHTML=md2html(fullText)+'<span class="cursor">|</span>';
    497. 

  497.               document.getElementById('chat').scrollTop=document.getElementById('chat').scrollHeight;
    498. 

  498.             }
    499. 

  499.             eventType='';
    500. 

  500.           }
    501. 

  501.         }
    502. 

  502.       }
    503. 

  503.       contentDiv.innerHTML=md2html(fullText)+buildBrandRecs()+buildSourceTags();var c=contentDiv.querySelector('.cursor');if(c)c.remove();
    504. 

  504.     }catch(e){
    505. 

  505.       if(e.name==='AbortError'){contentDiv.innerHTML=md2html(fullText+' <span style="color:var(--rd)">已停止</span>')+buildBrandRecs()+buildSourceTags();}
    506. 

  506.       else{contentDiv.innerHTML=md2html('连接失败: '+esc(e.message));}
    507. 

  507.     }
    508. 

  508.     aiDiv.classList.remove('streaming');STREAMING=false;streamAbort=null;resetSendBtn();
    509. 

  509.     document.getElementById('chat').scrollTop=document.getElementById('chat').scrollHeight;
    510. 

  510.   }
    511. 

  511. 

  512.   window.quickAsk=function(t){document.getElementById('userInput').value=t;track('click', {label: t});send()};
    513. 

  513.   function resetSendBtn(){document.getElementById('sendBtn').disabled=false;document.getElementById('stopBtn').style.display='none'}
    514. 

  514.   window.stopCurrent=function(){STREAMING=false;if(streamAbort){streamAbort.abort();streamAbort=null}resetSendBtn()};
    515. 

  515. 

  516.   var loginModalReturnFocus=null;
    517. 

  517.   window.showLoginModal=function(){
    518. 

  518.     var modal=document.getElementById('loginModal');
    519. 

  519.     if(!modal||!modal.classList.contains('hidden'))return;
    520. 

  520.     loginModalReturnFocus=document.activeElement;
    521. 

  521.     modal.classList.remove('hidden');
    522. 

  522.     setTimeout(function(){document.getElementById('loginConfirmBtn').focus()},0);
    523. 

  523.   };
    524. 

  524.   window.closeLoginModal=function(){
    525. 

  525.     var modal=document.getElementById('loginModal');
    526. 

  526.     if(!modal)return;
    527. 

  527.     modal.classList.add('hidden');
    528. 

  528.     if(loginModalReturnFocus&&typeof loginModalReturnFocus.focus==='function')loginModalReturnFocus.focus();
    529. 

  529.     loginModalReturnFocus=null;
    530. 

  530.   };
    531. 

  531.   window.goToLogin=function(){
    532. 

  532.     var redirectPath='/pages/pharmacopoeia/index';
    533. 

  533.     var loginPath='/pages/login/index?redirect='+encodeURIComponent(redirectPath);
    534. 

  534.     var pageParams=new URLSearchParams(window.location.search);
    535. 

  535.     var fromMiniProgram=pageParams.get('source')==='mini_program';
    536. 

  536.     if(fromMiniProgram&&window.wx&&window.wx.miniProgram&&typeof window.wx.miniProgram.redirectTo==='function'){
    537. 

  537.       window.wx.miniProgram.redirectTo({
    538. 

  538.         url:loginPath,
    539. 

  539.         fail:function(){alert('跳转登录页失败，请稍后重试')}
    540. 

  540.       });
    541. 

  541.       return;
    542. 

  542.     }
    543. 

  543. 

  544.     var loginUrl=pageParams.get('login_url')||'';
    545. 

  545.     if(loginUrl){
    546. 

  546.       try{
    547. 

  547.         var parsedLoginUrl=new URL(loginUrl);
    548. 

  548.         var allowedHosts=['h5.kailin.com.cn','h5.findit.ltd','findit.ltd','openwork.dfwy.tech','localhost','127.0.0.1'];
    549. 

  549.         var allowedHost=allowedHosts.indexOf(parsedLoginUrl.hostname)>=0||parsedLoginUrl.hostname.endsWith('.zanliang.com.cn');
    550. 

  550.         if(allowedHost&&(parsedLoginUrl.protocol==='https:'||['localhost','127.0.0.1'].indexOf(parsedLoginUrl.hostname)>=0)){
    551. 

  551.           window.location.href=parsedLoginUrl.href;
    552. 

  552.           return;
    553. 

  553.         }
    554. 

  554.       }catch(e){}
    555. 

  555.     }
    556. 

  556.     alert('请在开邻药惠购小程序内完成登录');
    557. 

  557.   };
    558. 

  558.   document.addEventListener('keydown',function(e){
    559. 

  559.     if(e.key==='Escape')closeLoginModal();
    560. 

  560.   });
    561. 

  561. 

  562.   window.send=async function(){
    563. 

  563.     var input=document.getElementById('userInput'),text=input.value.trim();
    564. 

  564.     var hasMedia=!!pendingMedia;
    565. 

  565.     if(!text&&!hasMedia)return;input.value='';if(STREAMING)return;
    566. 

  566.     track('chat', {query: text, has_media: hasMedia});
    567. 

  567.     doSend(text,hasMedia?pendingMedia:null);
    568. 

  568.   };
    569. 

  569.   function doSend(text,media){
    570. 

  570.     STREAMING=true;streamAbort=new AbortController();
    571. 

  571.     document.getElementById('sendBtn').disabled=true;document.getElementById('stopBtn').style.display='inline-block';
    572. 

  572.     var w=document.getElementById('chat').querySelector('.welcome');if(w)w.remove();
    573. 

  573.     var userDisplay=text;
    574. 

  574.     if(media){userDisplay='📷 [图片] '+(text||'请分析此图片')}
    575. 

  575.     addMsg('user',userDisplay);
    576. 

  576.     var query=text;
    577. 

  577.     if(media&&!text){query='请分析此图片中的药品信息'}
    578. 

  578.     if(!query){query='请介绍一下自己'}
    579. 

  579.     if(media)pendingMedia=null;if(media)clearMedia();
    580. 

  580.     currentIntent=classifyIntent(query);
    581. 

  581.     var aiDiv=addMsg('ai','',true,currentIntent),contentDiv=aiDiv.querySelector('.content');
    582. 

  582.     contentDiv.innerHTML='<div class="thinking"><span class="think-dots"><span class="think-dot"></span><span class="think-dot"></span><span class="think-dot"></span></span><span class="think-text">思考中</span><span class="cursor">|</span></div>';
    583. 

  583.     streamAsk(query,media,aiDiv,contentDiv);
    584. 

  584.   }
    585. 

  585. 

  586.   function buildBrandRecs(){
    587. 

  587.     if(!brandRecsData||!brandRecsData.length)return'';
    588. 

  588.     var SHOW_MAX=3;
    589. 

  589.     var showRecs=brandRecsData.slice(0,SHOW_MAX);
    590. 

  590.     var extraRecs=brandRecsData.slice(SHOW_MAX);
    591. 

  591.     var h='<div class="brand-recs">';
    592. 

  592.     h+='<div class="brand-recs-title">💊 品牌药品推荐</div>';
    593. 

  593.     for(var i=0;i<showRecs.length;i++){
    594. 

  594.       var r=showRecs[i];
    595. 

  595.       var name=r.brand_name||'';
    596. 

  596.       var desc=r.description||(r.function||'');
    597. 

  597.       if(desc.length>120)desc=desc.substring(0,120)+'...';
    598. 

  598.       var url=r.jump_url||'';
    599. 

  599.       // 有跳转链接直接跳转，无链接点击查看详情
    600. 

  600.       if(url){
    601. 

  601.         h+='<a class="brand-card" href="'+escAttr(url)+'" target="_blank" rel="noopener">';
    602. 

  602.         h+='<span class="brand-card-arrow">→ 跳转</span>';
    603. 

  603.       } else {
    604. 

  604.         h+='<div class="brand-card" onclick="showBrandDetail('+JSON.stringify(r)+')" style="cursor:pointer">';
    605. 

  605.         h+='<span class="brand-card-arrow" style="font-size:11px">查看详情 →</span>';
    606. 

  606.       }
    607. 

  607.       h+='<div class="brand-card-name">'+esc(name)+'</div>';
    608. 

  608.       h+='<div class="brand-card-desc">'+esc(desc)+'</div>';
    609. 

  609.       if(url){
    610. 

  610.         h+='</a>';
    611. 

  611.       } else {
    612. 

  612.         h+='</div>';
    613. 

  613.       }
    614. 

  614.     }
    615. 

  615.     if(extraRecs.length>0){
    616. 

  616.       var moreId='brandMore'+Date.now();
    617. 

  617.       h+='<div id="'+moreId+'" style="display:none">';
    618. 

  618.       for(var j=0;j<extraRecs.length;j++){
    619. 

  619.         var er=extraRecs[j];
    620. 

  620.         var ename=er.brand_name||'';
    621. 

  621.         var edesc=er.description||(er.function||'');
    622. 

  622.         if(edesc.length>120)edesc=edesc.substring(0,120)+'...';
    623. 

  623.         var eurl=er.jump_url||'';
    624. 

  624.         if(eurl){
    625. 

  625.           h+='<a class="brand-card" href="'+escAttr(eurl)+'" target="_blank" rel="noopener">';
    626. 

  626.           h+='<span class="brand-card-arrow">→ 跳转</span>';
    627. 

  627.         } else {
    628. 

  628.           h+='<div class="brand-card" onclick="showBrandDetail('+JSON.stringify(er)+')" style="cursor:pointer">';
    629. 

  629.           h+='<span class="brand-card-arrow" style="font-size:11px">查看详情 →</span>';
    630. 

  630.         }
    631. 

  631.         h+='<div class="brand-card-name">'+esc(ename)+'</div>';
    632. 

  632.         h+='<div class="brand-card-desc">'+esc(edesc)+'</div>';
    633. 

  633.         if(eurl){
    634. 

  634.           h+='</a>';
    635. 

  635.         } else {
    636. 

  636.           h+='</div>';
    637. 

  637.         }
    638. 

  638.       }
    639. 

  639.       h+='<button class="brand-more-btn" onclick="var d=document.getElementById(\''+moreId+'\');var t=this;if(d.style.display===\'none\'){d.style.display=\'block\';t.textContent=\'▲ 收起 '+extraRecs.length+' 条推荐\'}else{d.style.display=\'none\';t.textContent=\'▼ 展开 '+extraRecs.length+' 条推荐\'}">▼ 展开 '+extraRecs.length+' 条推荐</button>';
    640. 

  640.     }
    641. 

  641.     h+='</div>';
    642. 

  642.     return h;
    643. 

  643.   }
    644. 

  644. 

  645.   window.showBrandDetail=async function(brand){
    646. 

  646.     var bid=brand.brand_id||0;
    647. 

  647.     var data=brand;
    648. 

  648.     // 优先从后端查询最新数据
    649. 

  649.     if(bid){
    650. 

  650.       try{
    651. 

  651.         var r=await fetch(API_BASE+'/api/v1/admin/knowledge/brands/'+bid,{headers:authHeaders()});
    652. 

  652.         if(r.ok){var j=await r.json();if(j.name)data=j}
    653. 

  653.       }catch(e){}
    654. 

  654.     }
    655. 

  655.     // 有跳转链接直接跳转
    656. 

  656.     var jumpUrl=data.jump_url||brand.jump_url||'';
    657. 

  657.     if(jumpUrl){
    658. 

  658.       window.open(jumpUrl,'_blank','noopener');
    659. 

  659.       return;
    660. 

  660.     }
    661. 

  661.     // 否则弹窗展示详情
    662. 

  662.     var fields=[
    663. 

  663.       {label:'功能主治',key:'function'},
    664. 

  664.       {label:'用法用量',key:'usage_dosage'},
    665. 

  665.       {label:'禁忌',key:'contraindication'},
    666. 

  666.       {label:'成份',key:'ingredients'},
    667. 

  667.       {label:'性状',key:'properties'},
    668. 

  668.       {label:'规格',key:'specification'},
    669. 

  669.       {label:'不良反应',key:'adverse_reactions'},
    670. 

  670.       {label:'注意事项',key:'precautions'},
    671. 

  671.       {label:'执行标准',key:'execution_standard'},
    672. 

  672.       {label:'贮藏',key:'storage'}
    673. 

  673.     ];
    674. 

  674.     var body='';
    675. 

  675.     for(var i=0;i<fields.length;i++){
    676. 

  676.       var val=data[fields[i].key]||'';
    677. 

  677.       if(val){
    678. 

  678.         body+='<div class="bd-field"><div class="bd-label">'+fields[i].label+'</div><div class="bd-value">'+esc(val)+'</div></div>';
    679. 

  679.       }
    680. 

  680.     }
    681. 

  681.     if(!body)body='<div style="padding:20px;text-align:center;color:#aaa">暂无详细信息</div>';
    682. 

  682.     var overlay=document.createElement('div');
    683. 

  683.     overlay.className='brand-detail-overlay';
    684. 

  684.     overlay.onclick=function(e){if(e.target===this)this.remove()};
    685. 

  685.     overlay.innerHTML='<div class="brand-detail-box">'+
    686. 

  686.       '<div class="brand-detail-header">'+
    687. 

  687.         '<button class="bd-close" onclick="this.closest(\'.brand-detail-overlay\').remove()">×</button>'+
    688. 

  688.         '<h2>💊 '+esc(data.brand_name||brand.brand_name||'')+'</h2>'+
    689. 

  689.       '</div>'+
    690. 

  690.       '<div class="brand-detail-body">'+body+'</div>'+
    691. 

  691.     '</div>';
    692. 

  692.     document.body.appendChild(overlay);
    693. 

  693.   };
    694. 

  694. 

  695.   function buildSourceTags(){
    696. 

  696.     if(!sourcesData||!sourcesData.length)return'';
    697. 

  697.     // 按药名分组
    698. 

  698.     var groups={},order=[];
    699. 

  699.     for(var i=0;i<sourcesData.length;i++){
    700. 

  700.       var s=sourcesData[i];
    701. 

  701.       if(!s.section||s.section==='正文')continue;
    702. 

  702.       var name=s.name||'未知';
    703. 

  703.       var ver=s.source||s.category||'';
    704. 

  704.       var gkey=name+'|'+ver;
    705. 

  705.       if(!groups[gkey]){groups[gkey]={sections:[],seen:new Set(),name:name,source:ver,drugId:s.drug_id||''};order.push(gkey);}
    706. 

  706.       var key=s.section;
    707. 

  707.       if(!groups[gkey].seen.has(key)){
    708. 

  708.         groups[gkey].seen.add(key);
    709. 

  709.         var excerpt=(s.excerpt||'').replace(/【.+?】/g,'').replace(/来源：.*$/gm,'').trim();
    710. 

  710.         var showExcerpt=excerpt.length>400?excerpt.substring(0,400)+'...':excerpt;
    711. 

  711.         groups[gkey].sections.push({section:key,excerpt:showExcerpt});
    712. 

  712.       }
    713. 

  713.     }
    714. 

  714.     if(!order.length)return'';
    715. 

  715.     var h='<div class="source-tags">';
    716. 

  716.     for(var g=0;g<order.length;g++){
    717. 

  717.       var dn=order[g],grp=groups[dn],cnt=grp.sections.length;
    718. 

  718.       h+='<div style="margin-bottom:10px">';
    719. 

  719.       h+='<div class="src-title">📖 '+esc(dn)+' · '+esc(grp.source)+' （'+cnt+'个栏目）';
    720. 

  720.       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>';
    721. 

  721.       for(var s=0;s<grp.sections.length;s++){
    722. 

  722.         var sec=grp.sections[s];
    723. 

  723.         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>';
    724. 

  724.       }
    725. 

  725.       h+='</div>';
    726. 

  726.     }
    727. 

  727.     h+='</div>';
    728. 

  728.     return h;
    729. 

  729.   }
    730. 

  730. 

  731.   window.loadDrugDetailBySrc=async function(drugName){
    732. 

  732.     try{
    733. 

  733.       var r=await fetch(API_BASE+'/api/v1/drug/search?keyword='+encodeURIComponent(drugName)+'&pageSize=10',{headers:authHeaders()});
    734. 

  734.       if(r.status===401){console.warn('需要登录');return}
    735. 

  735.       var d=await r.json();var items=d.items||d.data||[];
    736. 

  736.       // 2025年版优先，再精确匹配
    737. 

  737.       items.sort(function(a,b){
    738. 

  738.         var va=a.source_version||'', vb=b.source_version||'';
    739. 

  739.         if(va==='2025年版' && vb!=='2025年版') return -1;
    740. 

  740.         if(vb==='2025年版' && va!=='2025年版') return 1;
    741. 

  741.         return (a.name===drugName?-1:0) - (b.name===drugName?-1:0);
    742. 

  742.       });
    743. 

  743.       if(items.length>0){loadDrugDetail(items[0].drug_id)}
    744. 

  744.       else{alert('未找到药品: '+drugName)}
    745. 

  745.     }catch(e){}
    746. 

  746.   };
    747. 

  747. 

  748.   // 药品库
    749. 

  749.   var ALL_DRUGS=[],drugPage=1,drugTotalPages=1,drugPageSize=20,drugKeyword='';
    750. 

  750.   async function loadDrugList(page){
    751. 

  751.     page=page||1;drugPage=page;
    752. 

  752.     var url=API_BASE+'/api/v1/drug/search?page='+page+'&pageSize='+drugPageSize;
    753. 

  753.     if(drugKeyword) url+='&keyword='+encodeURIComponent(drugKeyword);
    754. 

  754.     try{var r=await fetch(url,{headers:authHeaders()});
    755. 

  755.       if(r.status===401){console.warn('需要登录');return}
    756. 

  756.       var d=await r.json();
    757. 

  757.       ALL_DRUGS=d.items||d.data||[];drugTotalPages=d.total_pages||1;
    758. 

  758.       renderDrugCards(ALL_DRUGS);
    759. 

  759.     }catch(e){ALL_DRUGS=[];renderDrugCards([])}
    760. 

  760.   }
    761. 

  761.   var searchTimer=null;
    762. 

  762.   var lastSearched='';
    763. 

  763.   window.onSearchInput=function(){
    764. 

  764.     if(searchTimer)clearTimeout(searchTimer);
    765. 

  765.     searchTimer=setTimeout(function(){searchDrugs();},2000);
    766. 

  766.   };
    767. 

  767.   window.searchDrugs=function(){
    768. 

  768.     if(searchTimer){clearTimeout(searchTimer);searchTimer=null}
    769. 

  769.     var kw=(document.getElementById('drugSearchInput').value||'').trim();
    770. 

  770.     if(kw===lastSearched)return;
    771. 

  771.     drugKeyword=kw;
    772. 

  772.     if (drugKeyword) track('search', {keyword: drugKeyword});
    773. 

  773.     loadDrugList(1);
    774. 

  774.     lastSearched=kw;
    775. 

  775.     return false;
    776. 

  776.   };
    777. 

  777.   function renderDrugCards(items){
    778. 

  778.     var h='';
    779. 

  779.     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}
    780. 

  780.     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>'}
    781. 

  781.     document.getElementById('drugList').innerHTML=h;
    782. 

  782.     renderPager();
    783. 

  783.   }
    784. 

  784.   function renderPager(){
    785. 

  785.     var h='<div class="pager">';
    786. 

  786.     h+='<button onclick="loadDrugList(1)" '+(drugPage<=1?'disabled':'')+'>首页</button>';
    787. 

  787.     h+='<button onclick="loadDrugList('+(drugPage-1)+')" '+(drugPage<=1?'disabled':'')+'>‹</button>';
    788. 

  788.     var start=Math.max(1,drugPage-2),end=Math.min(drugTotalPages,drugPage+2);
    789. 

  789.     for(var p=start;p<=end;p++){
    790. 

  790.       h+='<button class="'+(p===drugPage?'active':'')+'" onclick="loadDrugList('+p+')">'+p+'</button>';
    791. 

  791.     }
    792. 

  792.     h+='<button onclick="loadDrugList('+(drugPage+1)+')" '+(drugPage>=drugTotalPages?'disabled':'')+'>›</button>';
    793. 

  793.     h+='<button onclick="loadDrugList('+drugTotalPages+')" '+(drugPage>=drugTotalPages?'disabled':'')+'>末页</button>';
    794. 

  794.     h+='<span class="page-info">共 '+drugTotalPages+' 页</span>';
    795. 

  795.     h+='<span class="page-info">跳至</span>';
    796. 

  796.     h+='<input id="jumpPageInput" type="text" value="'+drugPage+'" onblur="handleJumpPage()" style="width:48px;padding:6px 4px;border:1px solid #d0d5dd;border-radius:6px;font-size:12px;text-align:center">';
    797. 

  797.     h+='<span class="page-info">页</span>';
    798. 

  798.     h+='<select onchange="drugPageSize=parseInt(this.value);loadDrugList(1)">';
    799. 

  799.     [10,20,50,100].forEach(function(s){h+='<option value="'+s+'"'+(drugPageSize===s?' selected':'')+'>'+s+' 条/页</option>'});
    800. 

  800.     h+='</select>';
    801. 

  801.     h+='</div>';
    802. 

  802.     document.getElementById('drugPager').innerHTML=h;
    803. 

  803.   }
    804. 

  804.   window.loadDrugDetail=async function(drugId){
    805. 

  805.     try{
    806. 

  806.       var r=await fetch(API_BASE+'/api/v1/drug/'+encodeURIComponent(drugId),{headers:authHeaders()});
    807. 

  807.       if(r.status===401){console.warn('需要登录');return}
    808. 

  808.       var d=await r.json();var drug=d.data||d;
    809. 

  809.       track('drug_detail', {drug_id: drugId, drug_name: drug.name || ''});
    810. 

  810.       var dd=document.getElementById('tabDrugs');
    811. 

  811.       var topBar='<div style="display:flex;align-items:center;gap:10px;margin-bottom:16px;padding-bottom:12px;border-bottom:1px solid #e0e0e0">';
    812. 

  812.       topBar+='<button onclick="showDrugList()" class="btn btn-secondary" style="padding:4px 12px;min-height:auto;font-size:12px">← 返回列表</button>';
    813. 

  813.       topBar+='<span style="font-size:13px;color:var(--sub)">药品详情</span></div>';
    814. 

  814.       var h='<div class="drug-detail">'+topBar;
    815. 

  815.       h+='<h2>'+esc(drug.name||'')+'</h2>';
    816. 

  816.       h+='<div class="info-row">'+(drug.pinyin||'')+' '+(drug.name_en||'')+'</div>';
    817. 

  817.       h+='<div class="info-row">分类: '+(drug.category||'')+(drug.subcategory?' · '+drug.subcategory:'')+'</div>';
    818. 

  818.       h+='<div class="info-row">来源: '+(drug.source_version||'')+' '+(drug.source_volume||'')+(drug.source_page?' P'+drug.source_page:'')+'</div>';
    819. 

  819.       if(drug.sections&&typeof drug.sections==='object'){var keys=Object.keys(drug.sections);
    820. 

  820.         // 快速导航
    821. 

  821.         h+='<div style="margin:14px 0;padding:10px 12px;background:#f8f9fc;border-radius:8px;font-size:12px;line-height:2">';
    822. 

  822.         h+='<span style="color:var(--sub);font-weight:600">快速跳转：</span>';
    823. 

  823.         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>'}
    824. 

  824.         h+='</div>';
    825. 

  825.         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>'}}
    826. 

  826.       var bottomBar='<div style="display:flex;gap:8px;margin-top:20px;padding-top:16px;border-top:1px solid #e0e0e0">';
    827. 

  827.       bottomBar+='<button class="btn btn-secondary" onclick="showDrugList()" style="flex:1">← 返回列表</button>';
    828. 

  828.       bottomBar+='<button class="btn btn-secondary" onclick="switchTab(\'chat\')" style="flex:1">💬 返回对话</button>';
    829. 

  829.       bottomBar+='<button class="btn btn-primary" onclick="switchTab(\'chat\');quickAsk(\''+escAttr(drug.name)+'\')" style="flex:1">💊 询问此药</button>';
    830. 

  830.       bottomBar+='</div>';
    831. 

  831.       h+=bottomBar+'</div>';
    832. 

  832.       dd.innerHTML=h;
    833. 

  833.     }catch(e){document.getElementById('tabDrugs').innerHTML='<div class="welcome"><p>加载失败</p></div>'}
    834. 

  834.   };
    835. 

  835.   window.showDrugList=function(){
    836. 

  836.     document.getElementById('tabDrugs').innerHTML='<div class="search-box"><input id="drugSearchInput" placeholder="搜索药品名称..." oninput="onSearchInput()" value="'+escAttr(drugKeyword)+'"><button onclick="searchDrugs()">搜索</button></div><div class="drug-list" id="drugList"></div><div class="drug-pager" id="drugPager"></div>';
    837. 

  837.     renderDrugCards(ALL_DRUGS);
    838. 

  838.   };
    839. 

  839.   window.handleJumpPage=function(){
    840. 

  840.     var inp=document.getElementById('jumpPageInput');
    841. 

  841.     if(!inp)return;
    842. 

  842.     var v=parseInt(inp.value);
    843. 

  843.     if(isNaN(v)||v<1){v=1}
    844. 

  844.     if(v>drugTotalPages){v=drugTotalPages}
    845. 

  845.     if(v!==drugPage){loadDrugList(v)}
    846. 

  846.     else{inp.value=v}
    847. 

  847.   };
    848. 

  848.   window.switchTab=function(tab){
    849. 

  849.     track('switch_tab', {tab: tab});
    850. 

  850.     document.querySelectorAll('.nav-btn').forEach(function(b){b.classList.toggle('active',b.dataset.tab===tab)});
    851. 

  851.     document.getElementById('tabChat').classList.toggle('hidden',tab!=='chat');
    852. 

  852.     document.getElementById('tabDrugs').classList.toggle('hidden',tab!=='drugs');
    853. 

  853.     if(tab==='drugs'){
    854. 

  854.     drugKeyword='';drugPage=1;lastSearched='';
    855. 

  855.     showDrugList();
    856. 

  856.     document.getElementById('drugList').innerHTML='<div class="welcome"><div class="icon">⏳</div><p>加载中...</p></div>';
    857. 

  857.     document.getElementById('drugPager').innerHTML='';
    858. 

  858.     loadDrugList(1);
    859. 

  859.   }
    860. 

  860.   };
    861. 

  861.   // 初始化：打开本地数据库 → 恢复对话 → 预加载药品列表 → 加载快捷提问标签
    862. 

  862.       (async function init(){
    863. 

  863.         track('page_view');
    864. 

  864.         await openChatDB();
    865. 

  865.         await restoreChat();
    866. 

  866.         loadQuickAsks();
    867. 

  867.       })();
    868. 

  868. 

  869.   async function loadQuickAsks(){
    870. 

  870.     try {
    871. 

  871.       var r = await fetch(API_BASE + '/api/v1/yaodian/quick-asks');
    872. 

  872.       if (!r.ok) return;
    873. 

  873.       var data = await r.json();
    874. 

  874.       // 兼容统一返回格式 {code, data, message} 和原始数组格式
    875. 

  875.       var items = Array.isArray(data) ? data : (data.data || []);
    876. 

  876.       var container = document.getElementById('quickTags');
    877. 

  877.       if (!items || !items.length) { container.style.display='none'; return; }
    878. 

  878.       var html = '';
    879. 

  879.       for (var i = 0; i < items.length; i++) {
    880. 

  880.         var q = escAttr(items[i].question);
    881. 

  881.         var lbl = esc(items[i].label);
    882. 

  882.         html += '<span class="tag-btn" onclick="quickAsk(\'' + q + '\')">' + lbl + '</span>';
    883. 

  883.       }
    884. 

  884.       container.innerHTML = html;
    885. 

  885.     } catch(e) {}
    886. 

  886.   }
    887. 

  887. </script>
    888. 

  888. </body>
    889. 

  889. </html>
    890.