保持联网：中国SIM卡与WiFi指南 | Staying Connected: China SIM Cards and WiFi

SIM卡选择 / SIM Card Options

机场购买：落地后在中国移动/联通/电信柜台购买，境外游客套餐¥100–200/月，含数据流量（通常10–30GB）。需护照实名登记，当场激活。eSIM：出发前在Airalo、Nomad等平台购买中国eSIM，落地即用，无需排队，价格¥80–150/7天。

Buy at airport: Purchase at China Mobile/Unicom/Telecom counters after landing; tourist packages ¥100–200/month with data (typically 10–30GB). Passport registration required, activated on the spot. eSIM: Buy a China eSIM from Airalo, Nomad, etc. before departure — works immediately on arrival, no queuing, ¥80–150/7 days.

网络限制 / Internet Restrictions

Google、YouTube、Facebook、Instagram、WhatsApp、Twitter/X在中国大陆均无法直接访问。需使用VPN，建议出发前在国内下载好（中国境内下载VPN较困难）。推荐ExpressVPN、NordVPN、Astrill，稳定性较好。

Google, YouTube, Facebook, Instagram, WhatsApp, and Twitter/X are all blocked in mainland China. A VPN is required — download it before departure (downloading VPNs inside China is difficult). ExpressVPN, NordVPN, and Astrill are recommended for reliability.

酒店与公共WiFi / Hotel & Public WiFi

国际连锁酒店WiFi通常稳定，部分提供VPN友好网络。星巴克、麦当劳、肯德基等连锁店提供免费WiFi，需手机号验证（境外号码可能无法收到验证码，建议用国内SIM）。地铁WiFi覆盖主要城市，速度一般。