:root{--navy:#12223c;--ink:#17243b;--muted:#6a7890;--line:#d9e2ee;--paper:#f6f8fb;--surface:#fff;--blue:#3c78c9;--green:#39876d;--gold:#c98933;--red:#a85261;--shadow:0 12px 28px rgba(20,43,76,.08)}*{box-sizing:border-box}body{margin:0;background:var(--paper);color:var(--ink);font:14px/1.6 -apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei",sans-serif}button,input,select{font:inherit}button{cursor:pointer}button:disabled{cursor:not-allowed;opacity:.55}.hidden{display:none!important}.muted{color:var(--muted)}.eyebrow{font-size:11px;letter-spacing:.16em;color:var(--blue);font-weight:800;margin:0;text-transform:uppercase}.login-shell{min-height:100vh;display:grid;place-items:center;padding:24px;background:linear-gradient(135deg,#f4f8ff,#eef2f7)}.login-card{width:min(420px,100%);padding:34px;border:1px solid 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