/* 占位页的样式（CSP 不允许内联样式，所以单独一个文件） */
body { margin: 0; font-family: system-ui, -apple-system, "PingFang SC", "Microsoft YaHei", sans-serif; background: #f7f7f5; color: #222; }
main { max-width: 40rem; margin: 15vh auto; padding: 0 1rem; line-height: 1.7; }
h1 { font-size: 1.6rem; }
@media (prefers-color-scheme: dark) { body { background: #1b1b1b; color: #ddd; } }