时间戳工具 - Timestamp Tool

- **Name**: Timestamp & Time Tools Pro (时间戳助手专业版)
- **Summary**: The ultimate developer utility for timestamps, countdowns, and world time. 开发者必备的时间戳转换、倒计时与世界时钟工具。
- **Category**: Developer Tools (开发者工具) / Productivity (生产力)

## 2. 详细描述 (Description)

**English:**

Timestamp & Time Tools Pro is an all-in-one time management and utility extension designed for developers and power users. It simplifies working with timestamps, tracking deadlines, and managing time across different zones.

**Key Features:**

* **⚡ Smart Timestamp Generator**: Quickly generate current timestamps in seconds/milliseconds. custom date input supported.
* **🔄 Instant Conversion**: Convert between Unix timestamps and human-readable dates effortlessly.
* **⏲️ Advanced Countdown Timer**: Track important events or deadlines. Features a "Sticky" countdown mode that keeps the remaining time visible at the top.
* **⏱️ Precision Stopwatch**: Integrated stopwatch with lap recording functionality.
* **🍅 Pomodoro Timer**: Stay focused with a built-in Pomodoro timer (25/5 intervals) and browser notifications.
* **🌍 World Clock**: Add and monitor time across multiple cities worldwide. Real-time offset calculation.
* **🎨 10+ Modern Themes**: Customize the look with themes like Cyan, Indigo, Rose, Amber, and Dark Mode.
* **💾 Auto-Save**: Your settings, countdowns, and selected cities are automatically saved locally.

**中文:**

时间戳助手专业版（Timestamp Pro）是一款为开发者和高效人士打造的全能时间工具箱。它集成了时间戳处理、倒计时管理、番茄工作法等多项功能，助您高效掌控时间。

**核心功能：**

* **⚡ 智能时间戳生成**：一键生成当前秒/毫秒级时间戳，支持自定义日期转换。
* **🔄 快速转换**：自动识别并转换时间戳与日期格式，支持多种格式输出。
* **⏲️ 目标倒计时**：设置重要截止日期（如发版日、节假日），支持置顶显示剩余天数/时/分/秒。
* **⏱️ 多功能秒表**：支持毫秒级计时与计圈（Lap）功能。
* **🍅 专注番茄钟**：内置标准番茄工作法（25分钟工作/5分钟休息），带桌面通知提醒。
* **🌍 世界时钟**：自定义添加全球城市，实时显示当地时间与时差。
* **🎨 个性化主题**：提供青色、靛蓝、玫瑰红、暗黑模式等 10+ 种精美主题。
* **💾 自动保存**：所有配置、倒计时目标及城市列表均自动保存到本地。

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