.sandbox-quickstart {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
}

.sandbox-quickstart > div {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 22px;
}

.sandbox-quickstart h3 {
  font-size: 23px;
  line-height: 1.2;
  letter-spacing: -.02em;
  margin: 12px 0 8px;
}

.sandbox-quickstart p { color: var(--muted); }
.sandbox-quickstart .code-block { min-height: 310px; }
.production-head { margin-top: 72px; }
.production-head h2 { font-size: clamp(30px, 4vw, 44px); }

@media (max-width: 900px) {
  .sandbox-quickstart { grid-template-columns: 1fr; }
}

@media (max-width: 620px) {
  .sandbox-quickstart > div { padding: 16px; }
  .sandbox-quickstart .code-block { margin-left: 0; }
}