html:not([data-nk-protection=ready]) body{visibility:hidden!important}html:not([data-nk-protection=ready])::after{content:"正在验证页面授权…";position:fixed;inset:0;display:flex;align-items:center;justify-content:center;background:#f3f7fb;color:#16334c;font:16px/1.6 system-ui,sans-serif;z-index:2147483647;padding:24px;text-align:center}html[data-nk-protection=error]::after{content:attr(data-nk-protection-message)}