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<!DOCTYPE html>
<html lang="zh-CN">
<head>
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>爱小说 (重构版)</title>
  <script src="https://cdn.tailwindcss.com"></script>
  <link href="https://cdn.jsdelivr.net/npm/font-awesome@4.7.0/css/font-awesome.min.css" rel="stylesheet">
  <script>
    tailwind.config = {
      darkMode: 'class',
      theme: {
        extend: {
          colors: {
            primary: { DEFAULT: 'rgb(2, 132, 199)', hover: 'rgb(3, 105, 161)', focus: 'rgb(14, 165, 233)' },
            light: { bg: 'rgb(241, 245, 249)', card: '#ffffff', text: 'rgb(51, 65, 85)', subtext: 'rgb(100, 116, 139)' },
            dark: { bg: 'rgb(15, 23, 42)', card: 'rgb(30, 41, 59)', text: 'rgb(203, 213, 225)', subtext: 'rgb(100, 116, 139)' }
          },
          fontFamily: { sans: ['Inter', 'system-ui', 'sans-serif'], reading: ['var(--reading-font)', 'Inter', 'system-ui', 'sans-serif'] },
        },
      }
    }
  </script>
  <style type="text/tailwindcss">
    @layer base {
      :root {
        --reading-font: 'Inter'; --reading-font-size: 1.125rem; --reading-line-height: 1.75; --reading-letter-spacing: 0.025em;
        --reading-bg-color: theme('colors.light.card'); --reading-text-color: theme('colors.light.text');
        --dialogue-highlight-color: theme('colors.light.text'); --dialogue-highlight-weight: normal;
      }
      :root.dark {
        --reading-bg-color: theme('colors.dark.card'); --reading-text-color: theme('colors.dark.text');
        --dialogue-highlight-color: theme('colors.dark.text');
      }
    }
    @layer components {
      .btn { @apply px-3 py-2 rounded-md font-semibold text-sm transition-all duration-200 focus:outline-none focus:ring-2 focus:ring-offset-2 dark:focus:ring-offset-dark-bg disabled:opacity-50 disabled:cursor-not-allowed; }
      .btn-primary { @apply btn bg-primary text-white hover:bg-primary-hover focus:ring-primary-focus; }
      .btn-secondary { @apply btn bg-slate-200 text-slate-700 hover:bg-slate-300 focus:ring-slate-400 dark:bg-slate-700 dark:text-slate-200 dark:hover:bg-slate-600 dark:focus:ring-slate-500; }
      .input-base { @apply w-full p-2 border border-slate-300 rounded-md bg-white focus:outline-none focus:ring-2 focus:ring-primary-focus focus:border-transparent dark:bg-slate-700 dark:border-slate-600 dark:text-dark-text; }
    }
    @layer utilities {
      .transition-custom { @apply transition-all duration-300 ease-in-out; }
      .scrollbar-hide::-webkit-scrollbar { display: none; }
      .scrollbar-hide { -ms-overflow-style: none; scrollbar-width: none; }
      .tab-button.active { @apply bg-primary text-white; }
      .dialogue-highlight { color: var(--dialogue-highlight-color); font-weight: var(--dialogue-highlight-weight); }
    }
  </style>
</head>
<body class="bg-light-bg font-sans text-light-text min-h-screen flex flex-col dark:bg-dark-bg dark:text-dark-text">
  
  <header class="bg-light-card/80 dark:bg-dark-card/80 backdrop-blur-sm shadow-sm sticky top-0 z-50 border-b border-slate-200 dark:border-slate-800">
    <div class="container mx-auto px-4 py-2 flex justify-between items-center">
      <h1 class="text-xl font-bold text-sky-600 dark:text-sky-500 flex items-center"><i class="fa fa-book mr-2"></i>爱小说</h1>
      <div class="hidden md:flex items-center space-x-2">
        <button id="custom-prompt-btn" class="btn-secondary" title="自定义情节"><i class="fa fa-magic mr-2"></i>自定义</button>
        <button id="regenerate-chapter-btn" class="btn-secondary" title="重新生成"><i class="fa fa-refresh mr-2"></i>重写</button>
        <button id="continue-story-btn" class="btn-primary" title="继续故事"><i class="fa fa-play mr-2"></i>继续创作</button>
        <span class="text-slate-300 dark:text-slate-600 mx-1">|</span>
        <button id="import-btn" class="p-2 rounded-full hover:bg-slate-200 dark:hover:bg-slate-700" title="导入文件"><i class="fa fa-folder-open-o"></i></button>
        <button id="export-btn" class="p-2 rounded-full hover:bg-slate-200 dark:hover:bg-slate-700" title="导出文件"><i class="fa fa-save"></i></button>
        <button id="open-story-preset-btn" class="p-2 rounded-full hover:bg-slate-200 dark:hover:bg-slate-700" title="故事设定"><i class="fa fa-file-text-o"></i></button>
        <button id="open-model-settings-btn" class="p-2 rounded-full hover:bg-slate-200 dark:hover:bg-slate-700" title="模型设置"><i class="fa fa-cogs"></i></button>
        <button id="theme-toggle-btn" class="p-2 rounded-full hover:bg-slate-200 dark:hover:bg-slate-700"><i class="fa fa-moon-o"></i></button>
      </div>
      <div class="md:hidden">
        <button id="continue-story-btn-mobile" class="btn-primary px-3" title="继续故事"><i class="fa fa-play"></i></button>
        <button id="mobile-menu-btn" class="p-2 rounded-full hover:bg-slate-200 dark:hover:bg-slate-700 ml-2" title="更多操作"><i class="fa fa-ellipsis-v"></i></button>
      </div>
    </div>
    <div id="mobile-menu" class="hidden md:hidden absolute top-full right-4 mt-2 w-48 bg-light-card dark:bg-dark-card rounded-lg shadow-xl border border-slate-200 dark:border-slate-700 p-2 z-50">
      <a href="#" id="custom-prompt-btn-mobile" class="flex items-center w-full px-3 py-2 text-sm rounded-md hover:bg-slate-100 dark:hover:bg-slate-700"><i class="fa fa-magic fa-fw mr-3"></i>自定义情节</a>
      <a href="#" id="regenerate-chapter-btn-mobile" class="flex items-center w-full px-3 py-2 text-sm rounded-md hover:bg-slate-100 dark:hover:bg-slate-700"><i class="fa fa-refresh fa-fw mr-3"></i>重新生成</a>
      <div class="my-1 h-px bg-slate-200 dark:bg-slate-700"></div>
      <a href="#" id="import-btn-mobile" class="flex items-center w-full px-3 py-2 text-sm rounded-md hover:bg-slate-100 dark:hover:bg-slate-700"><i class="fa fa-folder-open-o fa-fw mr-3"></i>导入文件</a>
      <a href="#" id="export-btn-mobile" class="flex items-center w-full px-3 py-2 text-sm rounded-md hover:bg-slate-100 dark:hover:bg-slate-700"><i class="fa fa-save fa-fw mr-3"></i>导出文件</a>
      <div class="my-1 h-px bg-slate-200 dark:bg-slate-700"></div>
      <a href="#" id="open-story-preset-btn-mobile" class="flex items-center w-full px-3 py-2 text-sm rounded-md hover:bg-slate-100 dark:hover:bg-slate-700"><i class="fa fa-file-text-o fa-fw mr-3"></i>故事设定</a>
      <a href="#" id="open-model-settings-btn-mobile" class="flex items-center w-full px-3 py-2 text-sm rounded-md hover:bg-slate-100 dark:hover:bg-slate-700"><i class="fa fa-cogs fa-fw mr-3"></i>模型设置</a>
      <div class="my-1 h-px bg-slate-200 dark:bg-slate-700"></div>
      <a href="#" id="theme-toggle-btn-mobile" class="flex items-center w-full px-3 py-2 text-sm rounded-md hover:bg-slate-100 dark:hover:bg-slate-700"><i class="fa fa-moon-o fa-fw mr-3"></i>切换主题</a>
    </div>
  </header>

  <main class="flex-grow container mx-auto px-4 py-6 flex flex-col">
    <div class="mb-4 flex justify-between items-center">
      <button id="prev-chapter-btn" class="btn-secondary"><i class="fa fa-arrow-left mr-2"></i>上章</button>
      <span id="chapter-info" class="text-sm text-light-subtext dark:text-dark-subtext">无内容</span>
      <button id="next-chapter-btn" class="btn-secondary">下章<i class="fa fa-arrow-right ml-2"></i></button>
    </div>
    <div class="bg-light-card rounded-xl shadow-lg flex-grow flex flex-col overflow-hidden border border-slate-200 dark:border-slate-700/50" style="background-color: var(--reading-bg-color);">
      <div id="reading-area" class="p-6 md:p-8 lg:p-10 min-h-[500px] relative flex-grow overflow-y-auto scrollbar-hide" style="color: var(--reading-text-color); font-family: var(--reading-font); font-size: var(--reading-font-size); line-height: var(--reading-line-height); letter-spacing: var(--reading-letter-spacing);">
        <div id="loading-state" class="absolute inset-0 flex items-center justify-center bg-light-card/80 dark:bg-dark-card/80 z-10 hidden">
          <div class="text-center">
            <div class="inline-block animate-spin rounded-full h-10 w-10 border-t-2 border-b-2 border-primary mb-3"></div>
            <p class="text-light-subtext dark:text-dark-subtext">AI创作中...</p>
          </div>
        </div>
        <div id="content-container" class="hidden">
          <h1 id="chapter-title-display" class="text-2xl md:text-3xl font-bold mb-6 text-center" style="color: var(--reading-text-color);"></h1>
          <div id="content-area" class="prose max-w-none"></div>
        </div>
        <div id="welcome-message" class="text-center p-8 flex flex-col items-center justify-center h-full">
            <i class="fa fa-magic text-5xl text-slate-300 dark:text-slate-600 mb-4"></i>
            <h2 class="text-xl font-bold text-light-text dark:text-dark-text mb-2">欢迎使用 爱小说</h2>
            <p class="text-sm text-light-subtext dark:text-dark-subtext max-w-md mx-auto">请先点击 <i class="fa fa-cogs"></i> 配置模型,然后通过 <i class="fa fa-file-text-o"></i> 设定故事,或直接 <i class="fa fa-play"></i> 开始创作。</p>
        </div>
      </div>
      <div class="bg-light-card/80 border-t border-slate-200/80 p-2 flex justify-between items-center backdrop-blur-sm dark:bg-dark-card/80 dark:border-t-slate-700/50">
        <div class="flex items-center space-x-3 text-sm text-light-subtext dark:text-dark-subtext">
          <div class="flex items-center pl-2"><i class="fa fa-file-word-o mr-2"></i><span class="hidden sm:inline">字数: </span><span id="word-count">0</span></div>
          <div id="pagination-controls" class="flex items-center space-x-1 hidden">
              <button id="prev-page-btn" class="p-1 rounded-md hover:bg-slate-200 dark:hover:bg-slate-700 disabled:opacity-50" title="上一页"><i class="fa fa-chevron-left text-xs"></i></button>
              <span id="page-info" class="text-xs px-1"></span>
              <button id="next-page-btn" class="p-1 rounded-md hover:bg-slate-200 dark:hover:bg-slate-700 disabled:opacity-50" title="下一页"><i class="fa fa-chevron-right text-xs"></i></button>
          </div>
        </div>
        <div class="flex space-x-1">
          <button id="edit-chapter-btn" class="p-2 rounded-full hover:bg-slate-200 dark:hover:bg-slate-700" title="编辑章节"><i class="fa fa-edit"></i></button>
          <button id="open-reading-settings-btn" class="p-2 rounded-full hover:bg-slate-200 dark:hover:bg-slate-700" title="阅读设置"><i class="fa fa-sliders"></i></button>
          <button id="export-chapter-btn" class="p-2 rounded-full hover:bg-slate-200 dark:hover:bg-slate-700" title="导出本章"><i class="fa fa-download"></i></button>
          <button id="export-all-btn" class="p-2 rounded-full hover:bg-slate-200 dark:hover:bg-slate-700" title="导出全部"><i class="fa fa-save"></i></button>
        </div>
      </div>
    </div>
  </main>

  <div id="reading-settings-modal" class="fixed inset-0 bg-black/50 z-50 flex items-center justify-center hidden p-4"><div class="bg-light-card rounded-xl shadow-xl w-full max-w-md max-h-[90vh] flex flex-col dark:bg-dark-card"><div class="p-4 border-b flex justify-between items-center dark:border-slate-700"><h3 class="text-lg font-semibold text-sky-600 dark:text-sky-500">阅读设置</h3><button class="close-modal-btn p-2 rounded-full hover:bg-slate-200 dark:hover:bg-slate-700 -mr-2"><i class="fa fa-times text-light-subtext"></i></button></div><div class="p-5 space-y-5 overflow-y-auto"><div><h4 class="text-md font-medium mb-3 text-light-text dark:text-dark-text"><i class="fa fa-font mr-2 text-primary"></i>字体样式</h4><div class="space-y-4"><div><label for="font-size-slider" class="block text-sm font-medium mb-1 text-light-subtext dark:text-dark-subtext">字体大小: <span id="font-size-value">18px</span></label><input type="range" id="font-size-slider" min="12" max="32" step="1" value="18" class="w-full"></div><div><label for="line-height-slider" class="block text-sm font-medium mb-1 text-light-subtext dark:text-dark-subtext">行间距: <span id="line-height-value">1.75</span></label><input type="range" id="line-height-slider" min="1.2" max="2.5" step="0.05" value="1.75" class="w-full"></div></div></div><div><h4 class="text-md font-medium mb-3 text-light-text dark:text-dark-text"><i class="fa fa-upload mr-2 text-primary"></i>自定义字体</h4><div class="space-y-2"><p class="text-xs text-light-subtext">从本地上传字体文件:</p><input type="file" id="font-upload-input" accept=".ttf,.otf,.woff,.woff2" class="block w-full text-sm text-light-subtext file:mr-4 file:py-2 file:px-4 file:rounded-full file:border-0 file:text-sm file:font-semibold file:bg-sky-100 file:text-primary hover:file:bg-sky-200 cursor-pointer dark:file:bg-sky-900/50 dark:hover:file:bg-sky-900"><p class="text-xs text-light-subtext pt-2">或从URL加载字体:</p><div class="flex space-x-2"><input type="url" id="font-url-input" class="input-base" placeholder="https://.../font.woff2"><button id="apply-font-url-btn" class="btn-secondary flex-shrink-0">应用</button></div></div></div><div><h4 class="text-md font-medium mb-3 text-light-text dark:text-dark-text"><i class="fa fa-comments-o mr-2 text-primary"></i>对话高亮</h4><div class="space-y-3"><label class="flex items-center space-x-3 cursor-pointer"><input type="checkbox" id="dialogue-highlight-toggle" class="h-4 w-4 rounded border-slate-300 text-primary focus:ring-primary dark:bg-slate-700 dark:border-slate-600"><span class="text-sm font-medium">开启对话高亮</span></label><div id="dialogue-options" class="hidden pl-7 space-y-3 pt-2"><label class="flex items-center space-x-3 cursor-pointer"><input type="checkbox" id="dialogue-bold-toggle" class="h-4 w-4 rounded border-slate-300 text-primary focus:ring-primary dark:bg-slate-700 dark:border-slate-600"><span class="text-sm font-medium">对话内容加粗</span></label><div class="flex items-center space-x-3"><label for="dialogue-color-picker" class="text-sm font-medium text-light-subtext dark:text-dark-subtext">对话文字颜色:</label><input type="color" id="dialogue-color-picker" value="#334155" class="w-10 h-8 p-1 border rounded-md cursor-pointer dark:bg-slate-700 dark:border-slate-600"><button id="reset-dialogue-color-btn" class="text-xs text-light-subtext hover:text-primary">重置</button></div></div></div></div></div></div></div>
  <div id="custom-prompt-modal" class="fixed inset-0 bg-black/50 z-50 flex items-center justify-center hidden p-4"><div class="bg-light-card rounded-xl shadow-xl w-full max-w-lg dark:bg-dark-card"><div class="p-4 border-b flex justify-between items-center dark:border-slate-700"><h3 class="text-lg font-semibold text-sky-600 dark:text-sky-500">自定义生成</h3><button class="close-modal-btn p-2 rounded-full hover:bg-slate-200 dark:hover:bg-slate-700 -mr-2"><i class="fa fa-times text-light-subtext"></i></button></div><div class="p-5 space-y-4"><div id="image-preview-container" class="hidden relative group"><img id="image-preview" class="rounded-lg max-h-48 w-auto mx-auto"><button id="remove-image-btn" class="absolute top-2 right-2 p-1 bg-black/50 text-white rounded-full opacity-0 group-hover:opacity-100 transition-opacity"><i class="fa fa-times"></i></button></div><label id="image-upload-label" class="cursor-pointer w-full flex flex-col items-center justify-center p-4 border-2 border-dashed border-slate-300 dark:border-slate-600 rounded-lg hover:bg-slate-100 dark:hover:bg-slate-700"><i class="fa fa-image text-2xl text-slate-400 mb-2"></i><span class="text-sm text-light-subtext">上传图片 (可选)</span><input type="file" id="image-upload-input" accept="image/*" class="hidden"></label><div id="vision-model-warning" class="hidden text-xs text-amber-600 dark:text-amber-500 text-center p-2 bg-amber-50 dark:bg-amber-900/50 rounded-md"><i class="fa fa-warning mr-1"></i>当前模型可能不支持图片。请在设置中选择带 "vision" 标识的模型。</div><textarea id="custom-prompt-input" class="input-base h-28" placeholder="请输入你希望接下来发生的情节..."></textarea><div class="flex justify-end"><button id="submit-custom-prompt-btn" class="btn-primary">生成</button></div></div></div></div>
  <div id="edit-chapter-modal" class="fixed inset-0 bg-black/50 z-50 flex items-center justify-center hidden p-4"><div class="bg-light-card rounded-xl shadow-xl w-full max-w-4xl max-h-[90vh] flex flex-col dark:bg-dark-card"><div class="p-4 border-b flex justify-between items-center dark:border-slate-700"><h3 class="text-lg font-semibold text-sky-600 dark:text-sky-500">编辑章节</h3><button class="close-modal-btn p-2 rounded-full hover:bg-slate-200 dark:hover:bg-slate-700 -mr-2"><i class="fa fa-times text-light-subtext"></i></button></div><div class="p-5 flex-grow flex flex-col"><input type="text" id="edit-chapter-title-input" class="input-base mb-4" placeholder="章节标题"><textarea id="edit-chapter-content-input" class="input-base flex-grow w-full resize-none" style="min-height: 300px;"></textarea><div class="mt-4 flex justify-between items-center"><button id="delete-chapter-btn" class="btn bg-red-600 text-white hover:bg-red-700 focus:ring-red-500 flex items-center"><i class="fa fa-trash mr-2"></i>删除章节</button><div><button id="save-edit-btn" class="btn-primary">保存</button></div></div></div></div></div>
  <div id="model-settings-modal" class="fixed inset-0 bg-black/50 z-50 flex items-center justify-center hidden p-4"><div class="bg-light-card rounded-xl shadow-xl w-full max-w-2xl max-h-[90vh] flex flex-col dark:bg-dark-card"><div class="p-4 border-b flex justify-between items-center dark:border-slate-700"><h3 class="text-lg font-semibold text-sky-600 dark:text-sky-500">设置</h3><button class="close-modal-btn p-2 rounded-full hover:bg-slate-200 dark:hover:bg-slate-700 -mr-2"><i class="fa fa-times text-light-subtext"></i></button></div><div class="p-5 space-y-5 overflow-y-auto"><div class="space-y-4"><h2 class="text-lg font-semibold flex items-center text-sky-600 dark:text-sky-500 -mb-2"><i class="fa fa-plug mr-2"></i>API 配置</h2><div><label for="api-type-select" class="block text-sm font-medium mb-1">API 类型</label><select id="api-type-select" class="input-base"><option value="openai">OpenAI</option><option value="gemini">Gemini</option></select></div><div id="openai-url-container">
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</div><div><label class="block text-sm font-medium mb-1">API Key 配置</label><div id="api-key-display" class="hidden p-3 border rounded-md bg-slate-100 dark:bg-slate-900/50 dark:border-slate-700"><div class="flex justify-between items-center"><ul id="masked-keys-list" class="space-y-1 text-sm font-mono text-light-subtext dark:text-dark-subtext"></ul><button id="edit-api-keys-btn" class="text-sm text-primary hover:underline">编辑</button></div></div><textarea id="api-key-input" rows="3" class="input-base font-mono text-sm" placeholder="可输入多个Key,用逗号或换行分隔..."></textarea><p class="mt-1 text-xs text-amber-600 dark:text-amber-500"><i class="fa fa-warning mr-1"></i>注意:API密钥将经过混淆后保存在您的浏览器本地。</p></div><button type="button" id="connect-api-btn" class="btn-primary w-full flex items-center justify-center"><i class="fa fa-link mr-2"></i>连接模型</button><div id="api-status" class="hidden text-sm py-2 px-3 rounded-md text-center"></div></div><div class="space-y-4 pt-5 border-t dark:border-slate-700"><h2 class="text-lg font-semibold -mb-2 flex items-center text-sky-600 dark:text-sky-500"><i class="fa fa-sliders mr-2"></i>生成参数</h2><div><label for="model-select" class="block text-sm font-medium mb-1">选择模型</label><select id="model-select" class="input-base" disabled><option value="">请先连接API</option></select></div><div><label for="context-memory-slider" class="block text-sm font-medium mb-1">上下文记忆: <span id="context-memory-value">3</span></label><input type="range" id="context-memory-slider" min="0" max="50" value="3" class="w-full"> <!-- MODIFIED --></div><div><label for="temperature-slider" class="block text-sm font-medium mb-1">创意温度: <span id="temperature-value">0.7</span></label><input type="range" id="temperature-slider" min="0.1" max="1.5" step="0.1" value="0.7" class="w-full"></div><div><label for="max-tokens-slider" class="block text-sm font-medium mb-1">最大输出长度: <span id="max-tokens-value">4096</span></label><input type="range" id="max-tokens-slider" min="512" max="16384" step="256" value="4096" class="w-full"> <!-- MODIFIED --></div></div><div class="space-y-4 pt-5 border-t dark:border-slate-700"><h2 class="text-lg font-semibold -mb-2 flex items-center text-sky-600 dark:text-sky-500"><i class="fa fa-github mr-2"></i>GitHub 同步</h2><div class="grid grid-cols-1 sm:grid-cols-2 gap-4"><div><label for="github-user-input" class="block text-sm font-medium mb-1">用户名</label><input id="github-user-input" type="text" class="input-base" placeholder="YourGitHubUser"></div><div><label for="github-repo-input" class="block text-sm font-medium mb-1">仓库名</label><input id="github-repo-input" type="text" class="input-base" placeholder="my-ainovel-backup"></div></div><div><label for="github-pat-input" class="block text-sm font-medium mb-1">Personal Access Token</label><input id="github-pat-input" type="password" class="input-base font-mono" placeholder="ghp_..."><p class="mt-1 text-xs text-amber-600 dark:text-amber-500"><i class="fa fa-warning mr-1"></i>Token将保存在浏览器本地。请确保它仅有您指定私有仓库的 <code class="bg-slate-200 dark:bg-slate-700 px-1 rounded">repo</code> 权限。</p></div><div class="flex items-center space-x-4 pt-2"><label class="flex items-center space-x-2 cursor-pointer"><input type="checkbox" id="github-autosync-toggle" class="h-4 w-4 rounded border-slate-300 text-primary focus:ring-primary"><span class="text-sm">开启自动同步</span></label><select id="github-autosync-interval" class="input-base w-auto hidden"><option value="300000">每 5 分钟</option><option value="900000">每 15 分钟</option><option value="1800000">每 30 分钟</option><option value="3600000">每小时</option></select></div><div class="flex space-x-2"><button id="github-pull-btn" class="btn-secondary w-full flex items-center justify-center"><i class="fa fa-cloud-download mr-2"></i>下载同步</button><button id="github-push-btn" class="btn-primary w-full flex items-center justify-center"><i class="fa fa-cloud-upload mr-2"></i>上传同步</button></div><div id="github-status" class="hidden text-sm py-2 px-3 rounded-md text-center"></div></div></div></div></div>
  <div id="story-preset-modal" class="fixed inset-0 bg-black/50 z-50 flex items-center justify-center hidden p-4"><div class="bg-light-card rounded-xl shadow-xl w-full max-w-2xl max-h-[90vh] flex flex-col dark:bg-dark-card"><div class="p-4 border-b flex justify-between items-center dark:border-slate-700"><h3 class="text-lg font-semibold text-sky-600 dark:text-sky-500">故事预设</h3><button class="close-modal-btn p-2 rounded-full hover:bg-slate-200 dark:hover:bg-slate-700 -mr-2"><i class="fa fa-times text-light-subtext"></i></button></div><div class="p-5 flex-grow flex flex-col overflow-hidden"><div class="flex-shrink-0 mb-4 flex justify-between items-center"><div id="preset-tabs-container" class="flex space-x-0 border border-slate-200 dark:border-slate-700 rounded-lg p-1"></div><button id="add-preset-btn" title="新增预设" class="p-2 rounded-full hover:bg-slate-200 dark:hover:bg-slate-700 md:btn-secondary flex items-center"><i class="fa fa-plus md:mr-2"></i><span class="hidden md:inline">新增</span></button></div><div id="preset-list-container" class="flex-grow overflow-y-auto space-y-2 pr-2"></div><div class="flex-shrink-0 mt-4 pt-4 border-t dark:border-slate-700 flex justify-center"><button id="generate-from-presets-btn" class="btn-primary flex items-center"><i class="fa fa-magic mr-2"></i>根据选择生成故事</button></div></div></div></div>
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        const fetchFromApi = async (endpoint, options) => { const response = await fetch(endpoint, options); if (!response.ok) { const errorData = await response.json().catch(() => ({})); throw new Error(errorData?.error?.message || `HTTP Error: ${response.status} ${response.statusText}`); } return response.json(); };
        
        const connectToApi = async () => {
            const type = apiConfig.type;
            const url = (apiConfig.urls[type] || '').trim().replace(/\/$/, '');
            
            let keysToTest = [];
            const keysInputFromUI = elements.apiKeyInput.value.trim();
            if (!elements.apiKeyInput.classList.contains('hidden') && keysInputFromUI) {
                keysToTest = keysInputFromUI.split(/[\s,]+/).filter(Boolean);
            } else {
                keysToTest = apiConfig.keys[type] || [];
            }

            if (!url || keysToTest.length === 0) {
                return updateApiStatus('Base URL 和 API Key 不能为空。', 'error');
            }
            
            updateApiStatus('正在连接...', 'loading');
            try {
                const testKey = keysToTest[0];
                let modelsUrl, headers;

                if (type === 'openai') {
                    modelsUrl = `${url}/models`;
                    headers = { 'Authorization': `Bearer ${testKey}` };
                } else { // 'gemini'
                    modelsUrl = `${url}/v1beta/models?key=${testKey}`;
                    headers = {};
                }
                
                const data = await fetchFromApi(modelsUrl, { headers });
                const apiModels = (type === 'openai' ? data.data : data.models) || [];
                const modelList = [];
                elements.modelSelect.innerHTML = '';
                apiModels.forEach(model => {
                    const modelId = model.id || model.name;
                    if (!modelId) return;
                    const finalId = modelId.startsWith('models/') ? modelId.substring(7) : modelId;
                    modelList.push(finalId);
                    elements.modelSelect.add(new Option(finalId, finalId));
                });

                if (modelList.length > 0) {
                    elements.modelSelect.disabled = false;
                    const lastModel = localStorage.getItem('aiNovelLastModel');
                    if (lastModel && modelList.includes(lastModel)) {
                        elements.modelSelect.value = lastModel;
                    } else {
                        elements.modelSelect.selectedIndex = 0;
                    }
                    
                    apiConfig.keys[type] = keysToTest;
                    apiConfig.currentKeyIndices[type] = 0;
                    apiConfig.isConnected = true;
                    apiConfig.models = modelList;
                    
                    const successMessage = `连接成功!发现 ${modelList.length} 个模型。${keysToTest.length > 1 ? `已配置 ${keysToTest.length} 个Key进行轮换。` : ''}`;
                    updateApiStatus(successMessage, 'success');
                    renderApiKeyDisplay();
                    saveState();
                } else {
                    throw new Error("未找到兼容的模型。");
                }
            } catch (error) {
                apiConfig.isConnected = false;
                apiConfig.models = [];
                saveState();
                elements.modelSelect.disabled = true;
                elements.modelSelect.innerHTML = '<option value="">连接失败</option>';
                updateApiStatus(`连接失败: ${error.message}`, 'error');
            }
        };

        const generateChapter = async (userPrompt, isRegeneration = false, imageBase64 = null) => { if (!apiConfig.isConnected) return alert('请先在模型设置中连接API。'); const apiKey = getNextApiKey(); if (!apiKey) { toggleLoading(false); return alert('API已连接,但未配置密钥。请重新配置。'); } toggleLoading(true); const contextMemory = parseInt(elements.contextMemorySlider.value, 10), temperature = parseFloat(elements.temperatureSlider.value), model = elements.modelSelect.value, maxTokens = parseInt(elements.maxTokensSlider.value, 10); const promptData = buildFullPrompt(userPrompt, contextMemory, isRegeneration, imageBase64); let endpoint, payload, headers; const baseUrl = (apiConfig.urls[apiConfig.type] || '').trim().replace(/\/$/, ''); if (apiConfig.type === 'openai') { endpoint = `${baseUrl}/chat/completions`; payload = { model, temperature, messages: promptData.messages, max_tokens: maxTokens }; headers = { 'Content-Type': 'application/json', 'Authorization': `Bearer ${apiKey}` }; } else { endpoint = `${baseUrl}/v1beta/models/${model}:generateContent?key=${apiKey}`; payload = { generationConfig: { temperature, maxOutputTokens: maxTokens }, contents: promptData.geminiContents }; headers = { 'Content-Type': 'application/json' }; } try { const data = await fetchFromApi(endpoint, { method: 'POST', headers, body: JSON.stringify(payload) }); const newContent = (apiConfig.type === 'openai' ? data.choices?.[0]?.message?.content : data.candidates?.[0]?.content?.parts?.[0]?.text)?.trim(); if (!newContent) throw new Error('API返回内容为空。'); if (isRegeneration) { story[currentChapterIndex].content = newContent; story[currentChapterIndex].customPrompt = userPrompt; story[currentChapterIndex].promptImage = imageBase64; } else { const newIndex = story.length; story.push({ title: `第 ${newIndex + 1} 章`, content: newContent, customPrompt: userPrompt, promptImage: imageBase64 }); currentChapterIndex = newIndex; } renderChapter(currentChapterIndex); } catch (error) { console.error('生成失败:', error); alert(`生成失败: ${error.message}`); toggleLoading(false); }};
        
        const buildFullPrompt = (userPrompt, contextMemory, isRegeneration, imageBase64) => {
            const presetsPrompt = generatePromptFromSelectedPresets();
            const formatPreset = presetData.format?.find(p => selectedPresets.format?.includes(p.id));
            const formatInstructions = formatPreset ? formatPreset.desc : "Use Markdown format. Chapter title as H1.";
            const systemContent = `You are a talented novelist. Create the story based on the following settings and requirements.\n\n### Story Presets\n${presetsPrompt}\n\n### Output Format\n${formatInstructions}`;
            
            const contextStory = isRegeneration ? story.slice(0, currentChapterIndex) : story;
            const contextChapters = contextMemory > 0 ? contextStory.slice(-contextMemory) : [];
            
            let messages = [{ role: 'system', content: systemContent }];
            if (contextChapters.length > 0) {
                const contextText = "Here is the context from previous chapters:\n\n" + contextChapters.map(c => `# ${c.title}\n${c.content}`).join('\n\n');
                messages.push({ role: 'user', content: contextText });
                messages.push({ role: 'assistant', content: 'Understood. I have the context. What should I write next?' });
            }
            
            let finalUserContent;
            if (imageBase64 && apiConfig.type === 'openai') {
                finalUserContent = [{ type: 'text', text: userPrompt }];
                finalUserContent.push({ type: 'image_url', image_url: { url: imageBase64 } });
            } else {
                finalUserContent = userPrompt;
            }
            messages.push({ role: 'user', content: finalUserContent });

            let geminiUserParts = [{ text: systemContent }];
            if (contextChapters.length > 0) {
                geminiUserParts.push({ text: "\n\n### Previous Chapters (for context)\n" + contextChapters.map(c => `# ${c.title}\n${c.content}`).join('\n\n') });
            }
            geminiUserParts.push({ text: `\n\n### Current Task\n${userPrompt}` });
            if (imageBase64) {
                geminiUserParts.push({ inline_data: { mime_type: imageBase64.match(/data:(.*);/)[1], data: imageBase64.split(',')[1] } });
            }
            const geminiContents = [{ role: 'user', parts: geminiUserParts }];

            return { messages, geminiContents };
        };

        const handleApiTypeChange = () => { const newType = elements.apiTypeSelect.value; apiConfig.type = newType; apiConfig.isConnected = false; apiConfig.models = []; elements.openaiUrlContainer.classList.toggle('hidden', newType !== 'openai'); elements.geminiUrlContainer.classList.toggle('hidden', newType !== 'gemini'); elements.modelSelect.innerHTML = '<option value="">请先连接API</option>'; elements.modelSelect.disabled = true; updateApiStatus('', ''); renderApiKeyDisplay(); saveState(); };
        const renderChapter = (index) => { toggleLoading(false); if (index < 0 || index >= story.length) return showWelcomeScreen(); hideWelcomeScreen(); currentChapterIndex = index; const chapter = story[index]; let contentHtml = mdConverter.makeHtml(chapter.content); if (elements.dialogueHighlightToggle.checked) { contentHtml = highlightDialogue(contentHtml); } const tempDiv = document.createElement('div'); tempDiv.innerHTML = contentHtml; const h1 = tempDiv.querySelector('h1'); if (h1) { chapter.title = h1.textContent.trim(); h1.remove(); contentHtml = tempDiv.innerHTML; } elements.chapterTitleDisplay.textContent = chapter.title; chapterPages = paginateContent(contentHtml, 2500); currentPageIndex = 0; renderCurrentPage(); elements.readingArea.scrollTop = 0; updateUI(); saveState(); };
        const renderCurrentPage = () => { elements.contentArea.innerHTML = chapterPages[currentPageIndex] || ''; updatePaginationUI(); };
        const updateUI = () => { const hasStory = story.length > 0; elements.chapterInfo.textContent = hasStory ? `第 ${currentChapterIndex + 1} / ${story.length} 章` : '无内容'; elements.prevChapterBtn.disabled = !hasStory || currentChapterIndex === 0; elements.nextChapterBtn.disabled = !hasStory || currentChapterIndex === story.length - 1; [elements.continueStoryBtn, elements.regenerateChapterBtn, elements.editChapterBtn, elements.exportChapterBtn, elements.exportAllBtn, elements.openers.customPrompt, elements.continueStoryBtnMobile, elements.customPromptBtnMobile, elements.regenerateChapterBtnMobile].forEach(btn => { btn.disabled = !hasStory; }); elements.wordCount.textContent = hasStory ? (story[currentChapterIndex].content.match(/[\u4e00-\u9fa5\w]+/g) || []).join('').length : 0; elements.contextMemoryValue.textContent = elements.contextMemorySlider.value; elements.temperatureValue.textContent = elements.temperatureSlider.value; elements.maxTokensValue.textContent = elements.maxTokensSlider.value; elements.fontSizeValue.textContent = `${elements.fontSizeSlider.value}px`; elements.lineHeightValue.textContent = elements.lineHeightSlider.value; };
        const updatePaginationUI = () => { if (chapterPages.length > 1) { elements.paginationControls.classList.remove('hidden'); elements.pageInfo.textContent = `${currentPageIndex + 1} / ${chapterPages.length}`; elements.prevPageBtn.disabled = currentPageIndex === 0; elements.nextPageBtn.disabled = currentPageIndex >= chapterPages.length - 1; } else { elements.paginationControls.classList.add('hidden'); }};
        const updateApiStatus = (message, type) => { const s = elements.apiStatus; s.textContent = message; if (!message) { s.classList.add('hidden'); return; } s.classList.remove('hidden'); s.className = 'text-sm py-2 px-3 rounded-md text-center'; if (type === 'success') s.classList.add('bg-green-100', 'text-green-800', 'dark:bg-green-900/50', 'dark:text-green-300'); else if (type === 'error') s.classList.add('bg-red-100', 'text-red-800', 'dark:bg-red-900/50', 'dark:text-red-300'); else s.classList.add('bg-amber-100', 'text-amber-800', 'dark:bg-amber-900/50', 'dark:text-amber-300'); elements.connectApiBtn.innerHTML = type === 'loading' ? '<i class="fa fa-spinner fa-spin mr-2"></i>正在连接...' : '<i class="fa fa-link mr-2"></i>连接模型'; elements.connectApiBtn.disabled = (type === 'loading'); };
        const showWelcomeScreen = () => { elements.contentContainer.classList.add('hidden'); elements.welcomeMessage.classList.remove('hidden'); currentChapterIndex = -1; updateUI(); };
        const hideWelcomeScreen = () => { elements.contentContainer.classList.remove('hidden'); elements.welcomeMessage.classList.add('hidden'); };
        const toggleLoading = (isLoading) => elements.loadingState.classList.toggle('hidden', !isLoading);
        const maskApiKey = (key) => `${key.substring(0, 5)}...${key.substring(key.length - 4)}`;
        const renderApiKeyDisplay = () => { const keysForType = apiConfig.keys[apiConfig.type] || []; const hasKeys = keysForType.length > 0; elements.apiKeyInput.classList.toggle('hidden', hasKeys); elements.apiKeyDisplay.classList.toggle('hidden', !hasKeys); if (hasKeys) { elements.maskedKeysList.innerHTML = keysForType.map((key, index) => `<li>Key ${index + 1}: ${maskApiKey(key)}</li>`).join(''); } };
        const restoreApiConnectionUI = () => { if (apiConfig.isConnected && apiConfig.models && apiConfig.models.length > 0) { elements.modelSelect.innerHTML = ''; apiConfig.models.forEach(modelId => { elements.modelSelect.add(new Option(modelId, modelId)); }); const lastModel = localStorage.getItem('aiNovelLastModel'); if (lastModel && apiConfig.models.includes(lastModel)) { elements.modelSelect.value = lastModel; } else if (elements.modelSelect.options.length > 0) { elements.modelSelect.selectedIndex = 0; } elements.modelSelect.disabled = false; const keysForType = apiConfig.keys[apiConfig.type] || []; const successMessage = `已连接! 找到 ${apiConfig.models.length} 个模型。${keysForType.length > 1 ? `正在轮换 ${keysForType.length} 个Key。` : ''}`; updateApiStatus(successMessage, 'success'); } };
        const toggleModal = (modalName, show) => { if(elements.modals[modalName]) elements.modals[modalName].classList.toggle('hidden', !show); };
        const applyReadingSettings = () => { const root = document.documentElement; root.style.setProperty('--reading-font-size', `${elements.fontSizeSlider.value}px`); root.style.setProperty('--reading-line-height', elements.lineHeightSlider.value); root.style.setProperty('--dialogue-highlight-weight', elements.dialogueBoldToggle.checked ? 'bold' : 'normal'); root.style.setProperty('--dialogue-highlight-color', elements.dialogueColorPicker.value); elements.dialogueOptions.classList.toggle('hidden', !elements.dialogueHighlightToggle.checked); updateUI(); saveState(); renderChapter(currentChapterIndex); };
        const applyFontFromUrl = (url) => { if(!url) return; const fontName = 'CustomOnlineFont'; const styleId = 'custom-font-style'; $(`#${styleId}`)?.remove(); const style = document.createElement('style'); style.id = styleId; style.textContent = `@font-face { font-family: '${fontName}'; src: url('${url}'); }`; document.head.appendChild(style); document.documentElement.style.setProperty('--reading-font', `'${fontName}'`);};
        const highlightDialogue = (text) => text.replace(/(“[^”]+”|‘[^’]+’|"[^"]+"|\'[^\']+\'|「[^」]+」|『[^』]+』)/g, `<span class="dialogue-highlight">$1</span>`);
        const paginateContent = (htmlContent, limit) => { const pages = []; const tempDiv = document.createElement('div'); tempDiv.innerHTML = htmlContent; const nodes = Array.from(tempDiv.childNodes); if (nodes.length === 0) return [htmlContent]; let currentPageHtml = ''; for (const node of nodes) { if (currentPageHtml && (currentPageHtml.length + (node.textContent || '').length) > limit) { pages.push(currentPageHtml); currentPageHtml = ''; } currentPageHtml += node.outerHTML || node.textContent; } if (currentPageHtml) pages.push(currentPageHtml); return pages; };
        const downloadFile = (filename, content, mimeType) => { const blob = new Blob([content], { type: mimeType }); const url = URL.createObjectURL(blob); const a = document.createElement('a'); a.href = url; a.download = filename; document.body.appendChild(a); a.click(); document.body.removeChild(a); URL.revokeObjectURL(url); };
        const renderPresetTabs = () => { const isMobile = window.innerWidth < 768; elements.presetTabsContainer.innerHTML = Object.entries(PRESET_CATEGORIES).map(([key, {name, icon}]) => { const content = isMobile ? `<i class="fa ${icon} fa-fw"></i>` : name; return `<button data-tab="${key}" title="${name}" class="tab-button px-3 py-1.5 text-sm rounded-md transition-colors ${activePresetTab === key ? 'active' : ''}">${content}</button>`}).join('');};
        const renderPresetList = () => { const list = presetData[activePresetTab] || []; const categoryName = PRESET_CATEGORIES[activePresetTab].name; elements.presetListContainer.innerHTML = list.length === 0 ? `<p class="text-center text-light-subtext py-4">暂无 ${categoryName} 预设</p>` : list.map(item => { const isExpanded = expandedPresets.has(item.id); return `<div class="bg-slate-100 dark:bg-slate-900/50 rounded-lg"><div class="p-2 flex items-center justify-between ${selectedPresets[activePresetTab]?.includes(item.id) ? 'bg-sky-100/50 dark:bg-sky-900/20' : ''}"><div class="flex items-center flex-grow min-w-0" data-action="toggle-select" data-id="${item.id}"><input type="checkbox" class="h-4 w-4 rounded border-slate-300 text-primary flex-shrink-0" ${selectedPresets[activePresetTab]?.includes(item.id) ? 'checked' : ''}><div class="ml-3 flex-grow cursor-pointer min-w-0" data-action="toggle-expand" data-id="${item.id}"><p class="font-semibold text-light-text dark:text-dark-text truncate">${item.name}</p><div class="grid ${isExpanded ? 'grid-rows-[1fr]' : 'grid-rows-[0fr]'} transition-[grid-template-rows] duration-300 ease-in-out"><div class="overflow-hidden"><p class="text-xs text-light-subtext mt-1 pt-1 border-t border-slate-200 dark:border-slate-700">${item.desc.replace(/\n/g, '<br>')}</p></div></div></div></div><div class="flex items-center space-x-1 ml-2 flex-shrink-0"><button data-action="edit-preset" data-id="${item.id}" class="p-2 rounded-full hover:bg-slate-200 dark:hover:bg-slate-700"><i class="fa fa-edit text-sm"></i></button><button data-action="delete-preset" data-id="${item.id}" class="p-2 rounded-full hover:bg-red-100 dark:hover:bg-red-800/50"><i class="fa fa-trash text-sm text-red-500"></i></button></div></div></div>`}).join(''); };
        const showPresetEditor = (itemToEdit = null) => { const isEditing = !!itemToEdit; const modalId = 'dynamic-preset-editor'; $(`#${modalId}`)?.remove(); const modal = document.createElement('div'); modal.id = modalId; modal.className = 'fixed inset-0 bg-black/60 z-[60] flex items-center justify-center p-4'; modal.innerHTML = `<div class="bg-light-card dark:bg-dark-card rounded-xl shadow-xl w-full max-w-md"><div class="p-4 border-b dark:border-slate-700"><h3 class='text-lg font-semibold text-light-text dark:text-dark-text'>${isEditing ? '编辑' : '新增'} ${PRESET_CATEGORIES[activePresetTab].name} 预设</h3></div><div class="p-5 space-y-4"><input id='preset-edit-name' class='input-base' placeholder='名称' value='${itemToEdit?.name || ''}'/><textarea id='preset-edit-desc' class='input-base h-24' placeholder='描述'>${itemToEdit?.desc || ''}</textarea></div><div class='p-4 flex justify-end space-x-2 border-t dark:border-slate-700'><button id='preset-edit-cancel' class='btn-secondary'>取消</button><button id='preset-edit-save' class='btn-primary'>保存</button></div></div>`; document.body.appendChild(modal); modal.querySelector('#preset-edit-cancel').onclick = () => modal.remove(); modal.querySelector('#preset-edit-save').onclick = () => { const name = modal.querySelector('#preset-edit-name').value.trim(); const desc = modal.querySelector('#preset-edit-desc').value.trim(); if (!name) return alert('名称不能为空。'); if (isEditing) { itemToEdit.name = name; itemToEdit.desc = desc; } else { presetData[activePresetTab].push({ id: `p_${Date.now()}`, name, desc }); } savePresets(); renderPresetList(); modal.remove(); }; };
        const generatePromptFromSelectedPresets = () => { let prompt = ""; Object.entries(selectedPresets).forEach(([category, ids]) => { if (ids.length === 0) return; prompt += `### ${PRESET_CATEGORIES[category].name}\n`; ids.forEach(id => { const item = presetData[category].find(p => p.id === id); if (item) prompt += `- ${item.name}: ${item.desc}\n`; }); prompt += '\n'; }); return prompt || "无预设,请自由发挥。"; };
        const updateGithubStatus = (message, type, autoClear = false) => { const s = elements.githubStatus; s.textContent = message; s.className = 'hidden text-sm py-2 px-3 rounded-md text-center mt-2'; if (message) { s.classList.remove('hidden'); } if (type === 'success') s.classList.add('bg-green-100', 'text-green-800', 'dark:bg-green-900/50', 'dark:text-green-300'); else if (type === 'error') s.classList.add('bg-red-100', 'text-red-800', 'dark:bg-red-900/50', 'dark:text-red-300'); else s.classList.add('bg-amber-100', 'text-amber-800', 'dark:bg-amber-900/50', 'dark:text-amber-300'); if(autoClear) { setTimeout(() => { if (s.textContent === message) s.classList.add('hidden'); }, 3000); }};
        
        const githubSync = async (direction, isAuto = false) => {
            saveGithubConfig();
            const { user, repo, pat } = githubConfig;
            if (!user || !repo || !pat) return updateGithubStatus('请填写完整的GitHub信息', 'error');
            const url = `https://api.github.com/repos/${user}/${repo}/contents/ainovel.json`;
            const headers = { 'Authorization': `token ${pat}`, 'Accept': 'application/vnd.github.v3+json' };
            updateGithubStatus(isAuto ? '自动同步中...' : '同步中...', 'loading');
            try {
                if (direction === 'push') {
                    const backupData = {
                        state: localStorage.getItem(LS_KEYS.STATE),
                        presets: localStorage.getItem(LS_KEYS.PRESETS)
                    };
                    const content = btoa(unescape(encodeURIComponent(JSON.stringify(backupData))));
                    let sha;
                    try {
                        const response = await fetch(url, { headers });
                        if (response.ok) {
                            const data = await response.json();
                            sha = data.sha;
                        }
                    } catch (e) { /* Getting sha is optional, ignore if it fails */ }
                    const body = JSON.stringify({
                        message: `AINovel Backup ${new Date().toISOString()}`,
                        content,
                        sha
                    });
                    const pushResponse = await fetch(url, {
                        method: 'PUT',
                        headers,
                        body
                    });
                    if (!pushResponse.ok) {
                        const errorData = await pushResponse.json();
                        throw new Error(`GitHub API Error: ${errorData.message || pushResponse.statusText}`);
                    }
                    isDataDirty = false;
                    updateGithubStatus(isAuto ? '自动同步成功' : '上传成功!', 'success', true);
                } else { // pull
                    if (!isAuto && !confirm('从GitHub下载将覆盖本地所有数据,确定吗?')) {
                        updateGithubStatus('', '');
                        return;
                    }
                    const response = await fetch(url, { headers });
                    if (!response.ok) throw new Error('文件未找到或无权访问');
                    const data = await response.json();
                    const decodedContent = decodeURIComponent(escape(atob(data.content)));
                    const backupData = JSON.parse(decodedContent);

                    if (backupData && typeof backupData.state !== 'undefined' && typeof backupData.presets !== 'undefined') {
                        localStorage.setItem(LS_KEYS.STATE, backupData.state);
                        localStorage.setItem(LS_KEYS.PRESETS, backupData.presets);
                        updateGithubStatus('下载成功,即将刷新...', 'success');
                        setTimeout(() => window.location.reload(), 1500);
                    } else {
                        throw new Error('备份文件格式无效或内容为空');
                    }
                }
            } catch (e) {
                updateGithubStatus(`同步失败: ${e.message}`, 'error');
            }
        };

        const stopAutoSyncTimer = () => { if (autoSyncTimer) clearInterval(autoSyncTimer); autoSyncTimer = null; };
        const startAutoSyncTimer = () => { stopAutoSyncTimer(); if (githubConfig.autoSyncEnabled) { autoSyncTimer = setInterval(async () => { if (isDataDirty) { await githubSync('push', true); } }, githubConfig.autoSyncInterval); }};
        
        function initializeEventListeners() {
            Object.entries(elements.openers).forEach(([name, opener]) => { if(opener) opener.addEventListener('click', () => toggleModal(name, true)); });
            $$('.close-modal-btn').forEach(btn => btn.addEventListener('click', (e) => e.target.closest('.fixed').classList.add('hidden')));
            const mainActionHandler = (action) => () => { if (action === 'continue') generateChapter("接续上一章的情节,创作新的一章。"); else if (action === 'regenerate') { if (currentChapterIndex < 0) return; const chapter = story[currentChapterIndex]; const prompt = chapter.customPrompt || "用不同的视角或风格重写这一章。"; const image = chapter.promptImage || null; generateChapter(prompt, true, image); }};
            elements.continueStoryBtn.addEventListener('click', mainActionHandler('continue'));
            elements.regenerateChapterBtn.addEventListener('click', mainActionHandler('regenerate'));
            elements.prevChapterBtn.addEventListener('click', () => renderChapter(currentChapterIndex - 1));
            elements.nextChapterBtn.addEventListener('click', () => renderChapter(currentChapterIndex + 1));
            elements.prevPageBtn.addEventListener('click', () => { if (currentPageIndex > 0) renderCurrentPage(--currentPageIndex); });
            elements.nextPageBtn.addEventListener('click', () => { if (currentPageIndex < chapterPages.length - 1) renderCurrentPage(++currentPageIndex); });
            [elements.fontSizeSlider, elements.lineHeightSlider, elements.dialogueHighlightToggle, elements.dialogueBoldToggle, elements.dialogueColorPicker].forEach(el => el.addEventListener('input', applyReadingSettings));
            elements.resetDialogueColorBtn.addEventListener('click', () => { elements.dialogueColorPicker.value = document.documentElement.classList.contains('dark') ? '#cbd5e1' : '#334155'; applyReadingSettings(); });
            elements.fontUploadInput.addEventListener('change', (e) => { const file = e.target.files[0]; if (!file) return; const reader = new FileReader(); reader.onload = (event) => applyFontFromUrl(event.target.result); reader.readAsDataURL(file); });
            elements.applyFontUrlBtn.addEventListener('click', () => { const url = elements.fontUrlInput.value.trim(); if (url) { applyFontFromUrl(url); saveState();} });
            elements.exportChapterBtn.addEventListener('click', () => { if(currentChapterIndex < 0) return; downloadFile(`${story[currentChapterIndex].title}.txt`, story[currentChapterIndex].content, 'text/plain;charset=utf-8'); });
            elements.exportAllBtn.addEventListener('click', () => { if(!story.length) return; downloadFile('Full Story.txt', story.map(c => `# ${c.title}\n\n${c.content}`).join('\n\n---\n\n'), 'text/plain;charset=utf-8'); });
            elements.submitCustomPromptBtn.addEventListener('click', () => { const prompt = elements.customPromptInput.value.trim(); if (prompt || pendingImageBase64) { generateChapter(prompt, false, pendingImageBase64); toggleModal('customPrompt', false); elements.customPromptInput.value = ''; elements.removeImageBtn.click(); }});
            elements.openers.editChapter.addEventListener('click', () => { if(currentChapterIndex < 0) return; const chapter = story[currentChapterIndex]; elements.editChapterTitleInput.value = chapter.title; elements.editChapterContentInput.value = chapter.content; });
            elements.saveEditBtn.addEventListener('click', () => { story[currentChapterIndex].title = elements.editChapterTitleInput.value.trim(); story[currentChapterIndex].content = elements.editChapterContentInput.value.trim(); renderChapter(currentChapterIndex); toggleModal('editChapter', false); });
            elements.deleteChapterBtn.addEventListener('click', () => { if (confirm('确定要删除本章吗?此操作无法撤销。')) { story.splice(currentChapterIndex, 1); saveState(); const newIndex = Math.max(-1, currentChapterIndex - 1); renderChapter(newIndex); toggleModal('editChapter', false); }});
            elements.connectApiBtn.addEventListener('click', connectToApi);
            elements.apiTypeSelect.addEventListener('change', handleApiTypeChange);
            elements.apiUrlInputOpenAI.addEventListener('input', (e) => { apiConfig.urls.openai = e.target.value; saveState(); });
            [elements.contextMemorySlider, elements.temperatureSlider, elements.maxTokensSlider, elements.modelSelect].forEach(el => el.addEventListener('input', () => { saveState(); updateUI(); }));
            elements.editApiKeysBtn.addEventListener('click', () => { const type = apiConfig.type; apiConfig.keys[type] = []; apiConfig.isConnected = false; elements.apiKeyInput.value = ''; renderApiKeyDisplay(); updateApiStatus('请重新输入API Key并连接。', 'loading'); elements.modelSelect.disabled = true; elements.modelSelect.innerHTML = '<option value="">请先连接API</option>'; saveState(); });
            elements.presetTabsContainer.addEventListener('click', (e) => { const tab = e.target.closest('button')?.dataset.tab; if (tab) { activePresetTab = tab; renderPresetTabs(); renderPresetList(); } });
            elements.addPresetBtn.addEventListener('click', () => showPresetEditor());
            elements.presetListContainer.addEventListener('click', (e) => { const target = e.target.closest('[data-action]'); if (!target) return; const { action, id } = target.dataset; if (action === 'edit-preset') { const item = presetData[activePresetTab].find(p => p.id === id); if (item) showPresetEditor(item); } else if (action === 'delete-preset') { if (confirm('确定删除此预设?')) { presetData[activePresetTab] = presetData[activePresetTab].filter(p => p.id !== id); selectedPresets[activePresetTab] = selectedPresets[activePresetTab].filter(pId => pId !== id); expandedPresets.delete(id); savePresets(); renderPresetList(); } } else if (action === 'toggle-select') { const list = selectedPresets[activePresetTab]; const index = list.indexOf(id); if (index > -1) list.splice(index, 1); else list.push(id); savePresets(); renderPresetList(); } else if (action === 'toggle-expand') { if (expandedPresets.has(id)) expandedPresets.delete(id); else expandedPresets.add(id); savePresets(); renderPresetList(); }});
            elements.generateFromPresetsBtn.addEventListener('click', () => { if (!Object.values(selectedPresets).some(arr => arr.length > 0)) return alert('请至少选择一个预设。'); generateChapter("根据所选预设开始第一章。"); toggleModal('storyPreset', false); });
            const toggleMobileMenu = (forceClose = false) => { if(elements.mobileMenu) elements.mobileMenu.classList.toggle('hidden', forceClose); };
            elements.mobileMenuBtn.addEventListener('click', (e) => { e.stopPropagation(); toggleMobileMenu(); });
            document.addEventListener('click', () => toggleMobileMenu(true));
            elements.mobileMenu.addEventListener('click', (e) => { e.stopPropagation(); });
            const createMobileButtonHandler = (desktopButton) => (e) => { e.preventDefault(); if(desktopButton) desktopButton.click(); toggleMobileMenu(true); };
            elements.customPromptBtnMobile.addEventListener('click', createMobileButtonHandler(elements.openers.customPrompt));
            elements.regenerateChapterBtnMobile.addEventListener('click', createMobileButtonHandler(elements.regenerateChapterBtn));
            elements.openStoryPresetBtnMobile.addEventListener('click', createMobileButtonHandler(elements.openers.storyPreset));
            elements.openModelSettingsBtnMobile.addEventListener('click', createMobileButtonHandler(elements.openers.modelSettings));
            elements.themeToggleBtnMobile.addEventListener('click', createMobileButtonHandler(elements.themeToggleBtn));
            elements.continueStoryBtnMobile.addEventListener('click', createMobileButtonHandler(elements.continueStoryBtn));
            const updateThemeIcon = (isDark) => { const iconClass = isDark ? 'fa-sun-o' : 'fa-moon-o'; if(elements.themeToggleIcon) elements.themeToggleIcon.className = `fa ${iconClass}`; if(elements.themeToggleBtnMobile) elements.themeToggleBtnMobile.querySelector('i').className = `fa ${iconClass} fa-fw mr-3`; };
            elements.themeToggleBtn.addEventListener('click', () => { const isDark = document.documentElement.classList.toggle('dark'); localStorage.setItem(LS_KEYS.THEME, isDark ? 'dark' : 'light'); updateThemeIcon(isDark); });
            window.addEventListener('resize', renderPresetTabs);
            elements.exportBtn.addEventListener('click', () => { const backupData = { state: localStorage.getItem(LS_KEYS.STATE), presets: localStorage.getItem(LS_KEYS.PRESETS) }; const timestamp = new Date().toISOString().slice(0, 10); downloadFile(`ainovel_backup_${timestamp}.json`, JSON.stringify(backupData), 'application/json'); });
            elements.importBtn.addEventListener('click', () => elements.importFileInput.click());
            elements.importFileInput.addEventListener('change', (e) => { const file = e.target.files[0]; if (!file) return; const reader = new FileReader(); reader.onload = (event) => { try { const data = JSON.parse(event.target.result); if (data.state && data.presets) { if (confirm('导入将覆盖当前所有故事和设置,确定继续吗?')) { localStorage.setItem(LS_KEYS.STATE, data.state); localStorage.setItem(LS_KEYS.PRESETS, data.presets); alert('导入成功!页面将自动刷新。'); window.location.reload(); } } else { alert('文件格式无效!'); } } catch (err) { alert('导入失败,文件解析错误!'); } finally { elements.importFileInput.value = ''; }}; reader.readAsText(file); });
            elements.exportBtnMobile.addEventListener('click', createMobileButtonHandler(elements.exportBtn));
            elements.importBtnMobile.addEventListener('click', createMobileButtonHandler(elements.importBtn));
            elements.githubPushBtn.addEventListener('click', () => githubSync('push'));
            elements.githubPullBtn.addEventListener('click', () => githubSync('pull'));
            elements.githubAutoSyncToggle.addEventListener('change', () => { elements.githubAutoSyncInterval.classList.toggle('hidden', !elements.githubAutoSyncToggle.checked); saveGithubConfig(); startAutoSyncTimer(); });
            elements.githubAutoSyncInterval.addEventListener('change', () => { saveGithubConfig(); startAutoSyncTimer(); });
            elements.imageUploadInput.addEventListener('change', (e) => { const file = e.target.files[0]; if (!file) return; const reader = new FileReader(); reader.onload = (event) => { pendingImageBase64 = event.target.result; elements.imagePreview.src = pendingImageBase64; elements.imagePreviewContainer.classList.remove('hidden'); elements.imageUploadLabel.classList.add('hidden'); const currentModel = elements.modelSelect.value; if (currentModel && !currentModel.toLowerCase().includes('vision')) { elements.visionModelWarning.classList.remove('hidden'); }}; reader.readAsDataURL(file); });
            elements.removeImageBtn.addEventListener('click', () => { pendingImageBase64 = null; elements.imagePreview.src = ''; elements.imagePreviewContainer.classList.add('hidden'); elements.imageUploadLabel.classList.remove('hidden'); elements.visionModelWarning.classList.add('hidden'); elements.imageUploadInput.value = ''; });
        }
        
        function initializeApp() {
            loadState(); loadPresets(); loadGithubConfig(); initializeEventListeners();
            const savedTheme = localStorage.getItem(LS_KEYS.THEME);
            const isDark = savedTheme === 'dark' || (!savedTheme && window.matchMedia('(prefers-color-scheme: dark)').matches);
            if (isDark) document.documentElement.classList.add('dark');
            const updateThemeIcon = (isDark) => { const iconClass = isDark ? 'fa-sun-o' : 'fa-moon-o'; if(elements.themeToggleIcon) elements.themeToggleIcon.className = `fa ${iconClass}`; if(elements.themeToggleBtnMobile) elements.themeToggleBtnMobile.querySelector('i').className = `fa ${iconClass} fa-fw mr-3`; };
            updateThemeIcon(isDark);
            applyReadingSettings(); handleApiTypeChange(); renderApiKeyDisplay(); restoreApiConnectionUI(); renderPresetTabs(); renderPresetList();
            elements.githubAutoSyncInterval.classList.toggle('hidden', !elements.githubAutoSyncToggle.checked);
            startAutoSyncTimer();
            if (story.length === 0 || currentChapterIndex < 0) { showWelcomeScreen(); } else { renderChapter(currentChapterIndex); }
        }

        initializeApp();
    });
  </script>
</body>
</html>