:root{color-scheme:dark;font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;background:#0b1221;color:#f3f5fc}
*{box-sizing:border-box}html,body{width:100%;height:100%;margin:0;overflow:hidden}[hidden]{display:none!important}
#engine-host{height:100%;width:100%}#engine-host iframe{display:block;width:100%;height:100%;border:0;background:#fff}
.engine-notice{position:absolute;inset:0;display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;gap:12px;padding:24px;background:#0b1221}
.engine-mark{font-size:36px;font-weight:900;letter-spacing:-2px}.engine-mark span{color:#c7fa5f}
.engine-notice p{max-width:520px;line-height:1.6;font-size:16px;margin:0}.engine-notice a{min-height:44px;display:inline-flex;align-items:center;color:#b9c6df;font-size:14px;text-underline-offset:4px}
#engine-error{color:#ffe3bf}a:focus-visible,iframe:focus-visible{outline:3px solid #c7fa5f;outline-offset:3px}