#tougaoApp{min-height:100vh;background-color:#f5f5f5}.main-content-wrapper{max-width:100%}.text-center{text-align:center}.py-5{padding-top:3rem;padding-bottom:3rem}.mt-2{margin-top:.5rem}.text-muted{color:#6c757d}.icon-spin{display:inline-block;animation:icon-spin 2s infinite linear}@keyframes icon-spin{0%{transform:rotate(0)}to{transform:rotate(360deg)}}