/* ===== 全局工具类 ===== */
.container {
  width: min(calc(100% - 48px), var(--max-width));
  margin: 0 auto;
}

.design-frame {
  width: min(100%, 1920px);
  margin: 0 auto;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}