@media (max-width: 900px) {
  .sidebar-layout {
    gap: 28px;
  }

  .sidebar-layout > *,
  .prose,
  .tracking-search > *,
  .tracking-grid > *,
  .tracking-panel {
    min-width: 0;
  }

  .prose {
    width: 100%;
    overflow-wrap: anywhere;
  }

  .info-card,
  .tracking-result,
  .tracking-panel {
    max-width: 100%;
  }

  .info-card-title,
  .tracking-line,
  .tracking-code,
  .tracking-item,
  .tracking-link,
  .prose p,
  .prose li {
    overflow-wrap: anywhere;
  }

  .info-card-title {
    align-items: flex-start;
  }
}

@media (max-width: 600px) {
  .sidebar-layout {
    gap: 20px;
  }

  .page-hero {
    padding: 42px 0;
  }

  .page-hero-title {
    font-size: clamp(28px, 8.6vw, 34px);
    letter-spacing: -0.8px;
    line-height: 1.12;
  }

  .page-hero-title br {
    display: none;
  }

  .page-hero-sub {
    max-width: none;
  }

  .prose h2 {
    font-size: 20px;
    margin: 32px 0 12px;
  }

  .prose h3 {
    font-size: 16px;
  }

  .prose p,
  .prose ul li {
    font-size: 14px;
    line-height: 1.7;
  }

  .info-card,
  .tracking-result,
  .tracking-panel {
    padding: 16px;
    border-radius: var(--radius-md);
  }

  .info-card-title {
    gap: 8px;
    font-size: 15px;
  }

  .tracking-search {
    grid-template-columns: 1fr;
  }

  .tracking-submit {
    width: 100%;
  }

  .tracking-head {
    flex-direction: column;
    align-items: stretch;
  }

  .tracking-status {
    width: 100%;
    justify-content: center;
  }

  .tracking-code {
    font-size: 17px;
    line-height: 1.3;
  }

  .tracking-grid,
  .tracking-timeline {
    grid-template-columns: 1fr;
  }

  .tracking-item {
    flex-direction: column;
    align-items: flex-start;
  }

  .tracking-item span:last-child {
    font-weight: 700;
    color: var(--ink);
  }

  .tracking-link {
    width: 100%;
    justify-content: center;
    text-align: center;
  }

  .shipping-table,
  .shipping-table tbody,
  .shipping-table tr,
  .shipping-table td {
    display: block;
    width: 100%;
  }

  .shipping-table {
    border: 0;
    background: transparent;
    margin: 18px 0;
  }

  .shipping-table tr:first-child {
    display: none;
  }

  .shipping-table tr {
    margin-bottom: 12px;
    background: var(--white);
    border: 1px solid var(--surface-3);
    border-radius: var(--radius-md);
    overflow: hidden;
  }

  .shipping-table td {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 16px;
    padding: 12px 14px;
    border-bottom: 1px solid var(--surface-3);
    font-size: 13.5px;
    white-space: normal;
  }

  .shipping-table td:last-child {
    border-bottom: none;
  }

  .shipping-table td::before {
    content: attr(data-label);
    flex: 0 0 42%;
    max-width: 140px;
    font-size: 11px;
    font-weight: 700;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    color: var(--ink-3);
  }

  .shipping-table td > * {
    min-width: 0;
  }

  .free-tag {
    white-space: normal;
    text-align: right;
  }
}

@media (max-width: 420px) {
  .page-hero {
    padding: 38px 0;
  }

  .page-hero-title {
    font-size: 28px;
  }

  .page-hero-sub {
    font-size: 14px;
  }

  .info-card,
  .tracking-result,
  .tracking-panel {
    padding: 14px;
  }

  .shipping-table td {
    flex-direction: column;
    gap: 6px;
  }

  .shipping-table td::before {
    max-width: none;
  }
}