:root{color:#1f1f1f;background:#f5f5f5;font-family:Inter,PingFang SC,Microsoft YaHei,sans-serif}body{margin:0}.app-layout{min-height:100vh}.brand{color:#fff;font-size:18px;font-weight:600;padding:22px 24px}.app-content{padding:32px}.centered-page{display:grid;min-height:100vh;place-items:center}.login-card{width:min(420px,calc(100vw - 32px))}