:root{color:#172033;background:#f4f7fb;font-family:Inter,PingFang SC,Microsoft YaHei,sans-serif}*{box-sizing:border-box}body{margin:0}.login-shell{background:radial-gradient(circle at 20% 15%,#2778ff24,#0000 32%),linear-gradient(135deg,#f8fbff,#eef3fa);place-items:center;min-height:100vh;padding:24px;display:grid}.login-card{text-align:center;background:#fff;border:1px solid #e7edf5;border-radius:18px;width:min(440px,100%);min-height:520px;padding:48px 42px;box-shadow:0 24px 64px #1f3a5e1f}.brand-mark{color:#fff;background:#276ef1;border-radius:16px;place-items:center;width:56px;height:56px;margin:0 auto 24px;font-weight:700;display:grid}h1{margin:0;font-size:26px}.login-card>p{color:#687386;margin:12px 0 28px}.login-status{color:#687386;padding:80px 0}.wecom-login{min-height:320px}.login-error{font-size:14px;color:#d03050!important}