:root {
  font-family: "PingFang SC", "Microsoft YaHei", "Segoe UI", sans-serif;
  color: #172033;
  background: #f4f6f8;
  font-synthesis: none;
  --cc-primary: #155eef;
  --cc-navy: #172a46;
  --cc-border: #e3e8ef;
  --cc-muted: #667085;
}

* { box-sizing: border-box; }
html, body, #app { width: 100%; min-width: 0; min-height: 100%; margin: 0; }
body { min-height: 100vh; background: #f4f6f8; }
button, input, textarea, select { font: inherit; }
button { letter-spacing: 0; }
:focus-visible { outline: 3px solid rgba(21, 94, 239, .28); outline-offset: 2px; }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; overflow: hidden; clip: rect(0, 0, 0, 0); white-space: nowrap; border: 0; }