.fp-bootstrap { position: fixed; inset: 0; display: grid; place-items: center; padding: 24px; background: #f4f7fb; color: #172033; font-family: system-ui, "Microsoft YaHei", sans-serif; }
.fp-bootstrap-card { box-sizing: border-box; width: min(440px, 100%); padding: 36px 24px; border: 1px solid #e1e9f4; border-radius: 20px; background: #fff; text-align: center; }
.fp-bootstrap-card h1 { font-size: 24px; }
.fp-bootstrap-card p { color: #697386; line-height: 1.7; }
.fp-bootstrap-card button { padding: 12px 24px; border: 0; border-radius: 10px; background: #1268e8; color: #fff; font: inherit; cursor: pointer; }
.fp-bootstrap-spinner { width: 40px; height: 40px; margin: auto; border: 4px solid #e1e9f4; border-top-color: #1268e8; border-radius: 50%; animation: fp-bootstrap-spin .9s linear infinite; }
@keyframes fp-bootstrap-spin { to { transform: rotate(360deg); } }
@media (prefers-reduced-motion: reduce) { .fp-bootstrap-spinner { animation: none; } }