/* 仅补齐账户页面的手机排版；桌面样式、表单字段和业务交互保持原样。 */
@media (max-width: 767px) {
  .registration-card { padding: 24px; }
  .registration-heading h1, .account-heading h1 { font-size: 26px; text-wrap: balance; }
  .registration-heading > p:last-child, .account-heading p { text-wrap: pretty; }
  .registration-form input, .account-action-form input, .gift-form input {
    font-size: 16px;
    line-height: 1.5;
    min-height: 48px;
  }
  .verification-row { gap: 12px; }
  .verification-button { min-height: 48px; }

  /* 固定三列两行，避免 flex 换行后末行被拉成不同宽度。 */
  .account-navigation { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 6px; }
  .account-navigation a { display: flex; align-items: center; justify-content: center; min-width: 0; min-height: 44px; padding: 10px 4px; white-space: nowrap; }
  .account-heading { display: grid; gap: 12px; }
  .account-heading > p { margin-top: 0; }
  .account-heading > .button { justify-self: start; }
  .account-heading > div > p:not(.eyebrow) { color: var(--muted); font-size: 13px; margin-top: 10px; }
  .account-heading h2, .account-panel h2 { text-wrap: balance; word-break: keep-all; }
  .account-panel > header { flex-wrap: wrap; padding: 20px; gap: 12px; }
  .account-action-form { padding: 20px; }
  .account-copy-source { margin-inline: 20px; width: calc(100% - 40px); }
  .account-inline-status { margin-inline: 20px; }
  .account-data-row { padding-inline: 20px; }
  .account-data-row > [data-label] { overflow-wrap: anywhere; }
  .gift-form input { max-width: none; }

  /* 明细在手机上展示为带标签的记录卡，完整保留时间、说明、变动和余额。 */
  .credit-table .table-head { display: none; }
  .credit-table .table-row { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 8px 16px; padding: 20px; font-size: 13px; }
  .credit-table .table-row > time, .credit-table .table-row > span:first-of-type { grid-column: 1 / -1; }
  .credit-table .table-row > time { color: var(--muted); font-size: 12px; }
  .credit-table .table-row > strong::before, .credit-table .table-row > span:last-child::before {
    content: attr(data-label);
    display: block;
    color: var(--muted);
    font-size: 12px;
    font-weight: 400;
    margin-bottom: 2px;
  }
  .charge-list article, .feedback-list-item, .feedback-detail { padding-inline: 20px; }
  .account-pagination { flex-wrap: wrap; gap: 12px; }
  .account-pagination a { display: inline-flex; align-items: center; justify-content: center; min-height: 44px; }
  .account-pagination > span { white-space: nowrap; }
  .feedback-reply time { display: block; margin: 4px 0 0; }
}

@media (max-width: 600px) {
  .account-metrics { grid-template-columns: 1fr; }
  .account-metrics article { display: flex; align-items: center; justify-content: space-between; gap: 16px; padding: 20px; }
  .account-metrics span { font-size: 13px; }
  .account-metrics strong { font-size: 26px; margin-top: 0; text-align: right; }
  .account-action-form { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); }
  .account-action-form input { width: 100%; }
  .account-action-form .invitation-cost-preview, .account-action-form .account-action-button { grid-column: 1 / -1; }
  .account-action-form .account-action-button { margin-left: 0; width: 100%; }
}

@media (max-width: 360px) {
  .registration-card { padding: 20px; }
}