:root {
  color-scheme: light;
  font-family: Inter, 'PingFang SC', 'Microsoft YaHei', system-ui, sans-serif;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

body {
  min-height: 100vh;
  margin: 0;
  padding: clamp(8px, 2vw, 20px);
  color: #203044;
  background: #f7f9fc;
}

canvas {
  display: block;
  width: min(100%, var(--canvas-width, 600px));
  height: auto;
  max-width: 100%;
  background: #fff;
}

button,
input,
select {
  max-width: 100%;
  margin-block: 0.25rem;
  font: inherit;
}

@media (max-width: 640px) {
  button,
  select {
    min-height: 44px;
  }
}