Initial commit: 译泡 PopLingo v1.0.0

AI 划词翻译 Chrome 扩展（Manifest V3）：
- 支持 DeepSeek/OpenAI/Kimi/智谱/通义/Gemini/Claude/Ollama 等 10 种服务商
- 流式输出、左右分栏对照、原文一键展开收起
- 划词图标/自动翻译/Alt+T 快捷键/右键菜单四种触发方式

popup/popup.css

@@ -0,0 +1,62 @@
+* { box-sizing: border-box; margin: 0; padding: 0; }
+
+body {
+  width: 300px;
+  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
+  background: #f8fafc;
+  color: #111827;
+}
+
+.head {
+  display: flex; align-items: center; justify-content: space-between;
+  padding: 14px 16px 12px;
+  background: linear-gradient(135deg, #4f46e5, #8b5cf6);
+  color: #fff;
+}
+.brand { display: flex; align-items: center; gap: 10px; }
+.brand img { border-radius: 6px; }
+.brand h1 { font-size: 14px; font-weight: 700; }
+.status { font-size: 11px; opacity: .85; }
+
+.switch { position: relative; width: 40px; height: 22px; flex: none; }
+.switch input { opacity: 0; width: 0; height: 0; }
+.slider {
+  position: absolute; inset: 0; background: rgba(255,255,255,.35);
+  border-radius: 99px; cursor: pointer; transition: background .2s;
+}
+.slider::before {
+  content: ''; position: absolute; left: 3px; top: 3px;
+  width: 16px; height: 16px; border-radius: 50%; background: #fff;
+  transition: transform .2s;
+}
+.switch input:checked + .slider { background: #22c55e; }
+.switch input:checked + .slider::before { transform: translateX(18px); }
+
+.provider { margin: 10px 12px 0; padding: 4px 12px; background: #fff; border-radius: 10px; border: 1px solid #e5e7eb; }
+.row {
+  display: flex; align-items: center; justify-content: space-between;
+  padding: 8px 0; font-size: 12.5px;
+}
+.row + .row { border-top: 1px solid #f3f4f6; }
+.label { color: #6b7280; }
+.value { font-weight: 600; color: #111827; max-width: 170px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
+.mono { font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: 11.5px; font-weight: 500; color: #4f46e5; }
+.warn { color: #f59e0b; }
+.ok { color: #10b981; }
+
+.form { display: grid; gap: 8px; padding: 10px 12px 4px; }
+.field { display: grid; gap: 4px; font-size: 12px; color: #6b7280; }
+.field select {
+  padding: 7px 10px; border-radius: 8px; border: 1px solid #e5e7eb;
+  background: #fff; font-size: 13px; color: #111827; outline: none; cursor: pointer;
+}
+.field select:focus { border-color: #8b5cf6; box-shadow: 0 0 0 3px rgba(139,92,246,.15); }
+
+.foot { display: flex; align-items: center; justify-content: space-between; padding: 12px 16px 14px; }
+.btn {
+  border: none; cursor: pointer; font-size: 12.5px; font-weight: 600;
+  padding: 8px 14px; border-radius: 8px; background: #eef2ff; color: #4f46e5;
+  transition: all .15s;
+}
+.btn:hover { background: #e0e7ff; transform: translateY(-1px); }
+.hint { font-size: 10.5px; color: #9ca3af; }

popup/popup.html

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+<!DOCTYPE html>
+<html lang="zh-CN">
+<head>
+  <meta charset="UTF-8" />
+  <link rel="stylesheet" href="popup.css" />
+</head>
+<body>
+  <header class="head">
+    <div class="brand">
+      <img src="../icons/icon32.png" alt="" width="22" height="22" />
+      <div>
+        <h1>译泡 PopLingo</h1>
+        <span id="statusText" class="status">已开启</span>
+      </div>
+    </div>
+    <label class="switch">
+      <input type="checkbox" id="enabledToggle" />
+      <span class="slider"></span>
+    </label>
+  </header>
+
+  <section class="provider">
+    <div class="row">
+      <span class="label">服务商</span>
+      <span id="providerName" class="value">DeepSeek</span>
+    </div>
+    <div class="row">
+      <span class="label">模型</span>
+      <span id="modelName" class="value mono">deepseek-chat</span>
+    </div>
+    <div class="row" id="keyRow">
+      <span class="label">API Key</span>
+      <span id="keyStatus" class="value warn">未配置</span>
+    </div>
+  </section>
+
+  <section class="form">
+    <label class="field">
+      <span>目标语言</span>
+      <select id="targetLang"></select>
+    </label>
+    <label class="field">
+      <span>触发方式</span>
+      <select id="triggerMode">
+        <option value="icon">划词后点图标</option>
+        <option value="auto">划词后自动翻译</option>
+        <option value="shortcut">仅快捷键 Alt+T</option>
+      </select>
+    </label>
+  </section>
+
+  <footer class="foot">
+    <button id="openOptions" class="btn primary">⚙ 模型设置</button>
+    <span class="hint">选中文字试试 · Esc 关闭弹窗</span>
+  </footer>
+
+  <script src="popup.js"></script>
+</body>
+</html>

popup/popup.js

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+/* global chrome */
+
+const LANGS = ['简体中文', '繁體中文', 'English', '日本語', '한국어', 'Français', 'Deutsch', 'Español', 'Português', 'Italiano', 'Русский', 'العربية', 'हिन्दी', 'ไทย', 'Việt Nam', 'Indonesia'];
+
+const PRESETS = {
+  deepseek: 'DeepSeek', openai: 'OpenAI', kimi: '月之暗面 Kimi', zhipu: '智谱 GLM',
+  qwen: '通义千问', siliconflow: '硅基流动', gemini: 'Google Gemini',
+  anthropic: 'Anthropic Claude', ollama: 'Ollama（本地）', custom: '自定义（OpenAI 兼容）'
+};
+
+const $ = id => document.getElementById(id);
+
+async function init() {
+  const cfg = await chrome.storage.sync.get({
+    enabled: true, preset: 'deepseek', model: '', apiKey: '',
+    targetLang: '简体中文', triggerMode: 'icon'
+  });
+
+  const langSel = $('targetLang');
+  LANGS.forEach(l => {
+    const o = document.createElement('option');
+    o.value = l; o.textContent = l;
+    langSel.appendChild(o);
+  });
+  langSel.value = cfg.targetLang;
+  $('triggerMode').value = cfg.triggerMode;
+
+  $('enabledToggle').checked = cfg.enabled;
+  updateStatus(cfg.enabled);
+  $('providerName').textContent = PRESETS[cfg.preset] || cfg.preset;
+  $('modelName').textContent = cfg.model || '（未设置）';
+  $('keyStatus').textContent = cfg.apiKey ? '已配置' : '未配置';
+  $('keyStatus').className = 'value ' + (cfg.apiKey ? 'ok' : 'warn');
+
+  $('enabledToggle').addEventListener('change', e => {
+    chrome.storage.sync.set({ enabled: e.target.checked });
+    updateStatus(e.target.checked);
+  });
+  langSel.addEventListener('change', () => chrome.storage.sync.set({ targetLang: langSel.value }));
+  $('triggerMode').addEventListener('change', () => chrome.storage.sync.set({ triggerMode: $('triggerMode').value }));
+  $('openOptions').addEventListener('click', () => chrome.runtime.openOptionsPage());
+}
+
+function updateStatus(on) {
+  $('statusText').textContent = on ? 'AI 划词翻译 · 已开启' : 'AI 划词翻译 · 已停用';
+}
+
+init();