:root {
  --brand-blue: #1677FF;
  --brand-blue-strong: #0B63E5;
  --brand-blue-soft: #E8F1FF;
  --text-main: #111111;
  --text-secondary: #666666;
  --text-muted: #8A8A8A;
  --border: #EEEEEE;
  --surface: #FFFFFF;
  --surface-2: #F7F8FA;
  --up: #16A34A;
  --down: #EF4444;
  --radius-sm: 10px;
  --radius-md: 14px;
  --radius-card: 16px;
  --content-max: 760px;
  --header-h: 60px;
  --nav-h: 64px;
  --shadow-sm: 0 1px 2px rgba(17, 17, 17, 0.04);
  --shadow-md: 0 8px 24px rgba(17, 17, 17, 0.07);
  --font: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Segoe UI", sans-serif;
}