* { box-sizing: border-box; margin: 0; padding: 0; }

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
  background:
    radial-gradient(circle at top left, rgba(234,122,0,0.1), transparent 30%),
    linear-gradient(180deg, #ffffff 0%, var(--bg) 260px);
  color: var(--text-main);
  -webkit-font-smoothing: antialiased;
}

button, input, select, textarea { font-family: inherit; }
button { cursor: pointer; }