*{margin:0;padding:0;box-sizing:border-box}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif}#root{min-height:100vh}.login-bg{min-height:100vh;display:flex;align-items:center;justify-content:center;background:linear-gradient(135deg,#1677ff 0%,#0958d9 100%)}.login-card{width:400px;padding:40px;background:#fff;border-radius:12px;box-shadow:0 8px 40px #0000001f}.login-card h1{text-align:center;margin-bottom:8px;color:#1677ff;font-size:28px}.login-card .subtitle{text-align:center;color:#999;margin-bottom:32px}