/* 移动端注册卡片：内容超过屏高时由弹层承接纵向滚动。 */
@media (max-width: 640px) {
  .system-shell > div[class*="fixed inset-0 z-[100]"][class*="bg-gradient-to-br"] {
    align-items: flex-start !important;
    justify-content: center !important;
    overflow-y: auto !important;
    overscroll-behavior: contain;
    padding: max(1rem, var(--qm-safe-top, 0px))
      max(1rem, var(--qm-safe-right, 0px))
      max(1rem, var(--qm-safe-bottom, 0px))
      max(1rem, var(--qm-safe-left, 0px)) !important;
  }

  .system-shell > div[class*="fixed inset-0 z-[100]"][class*="bg-gradient-to-br"]
    > div[class*="w-[540px]"] {
    width: 100% !important;
    max-width: 540px !important;
    max-height: calc(100vh - 2rem) !important;
    max-height: calc(100dvh - 2rem) !important;
    overflow-y: auto !important;
    overscroll-behavior: contain;
    -webkit-overflow-scrolling: touch;
  }
}