/* Minimal shell reset for standalone preview. The Guangwu production page can
   reuse its existing body/header/workspace styles instead. */
*, *::before, *::after { box-sizing: border-box; }
html, body { min-height: 100%; }
body { margin: 0; font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif; }
button, input, select, textarea { font: inherit; }