body{margin:0;background:#f5f7fa}.portal-boot{min-height:100vh;display:flex;flex-direction:column;justify-content:center;align-items:center;gap:12px;padding:24px;box-sizing:border-box;color:#16353e;font:16px/1.6 system-ui,sans-serif;text-align:center}.portal-boot strong{font-size:26px}.portal-boot p{max-width:560px;margin:0}.portal-boot button{padding:10px 20px;border:0;border-radius:12px;background:#1a6f66;color:#fff;cursor:pointer}