:root {
  --site-width: 1200px;
  --header-height: 100px;
  --nav-height: 49px;
  --inner-banner-height: 370px;
  --color-primary: #c9151e;
  --color-primary-bright: #ff6537;
  --color-ink: #222;
  --color-text: #444;
  --color-muted: #777;
  --color-border: #e5e5e5;
  --color-surface: #fff;
  --color-footer: #292929;
  --font-sans: "Microsoft YaHei", "PingFang SC", Arial, sans-serif;
}