最直观的是营销成本失控。完美日记的增长高度依赖营销投放，营销费用率常年居高不下，甚至一度超过 60%。随着小红书、抖音等平台流量成本逐年攀升，获客成本成倍上涨，烧钱换增长的模式在资本退潮、市场冷静的背景下，失去了可持续性。
These AR/XR glasses have a huge price advantage over their rivals.，更多细节参见爱思助手下载最新版本
If you’re launching on a fresh domain, monitor its status proactively. Check VirusTotal before launch. Set up Google Search Console immediately. One erroneous flag can spread like a virus across vendor databases.
华为 2025 年销售收入超 8800 亿元、鸿蒙设备破 4000 万，更多细节参见爱思助手下载最新版本