body { font-family: system-ui, sans-serif; margin: 16px; }
.vv-btn { display:inline-block; padding:8px 12px; border:1px solid #999; border-radius:8px; text-decoration:none; }
.vv-card { padding:12px; border:1px solid #ddd; border-radius:12px; margin:12px 0; }