/* Shared developer identity; the supplied logo is served unchanged. */
.jingsuan-logo {
  display: block;
  width: 52px;
  height: 52px;
  flex: 0 0 auto;
  object-fit: contain;
  border-radius: 8px;
}
.brand-copy { display: block; line-height: 1.35; }
.developer-credit,
.brand .developer-credit {
  display: block;
  margin-top: 3px;
  color: var(--muted);
  font-size: 11px;
  line-height: 1.5;
  font-weight: 400;
  letter-spacing: .02em;
}
.auth-brand {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 24px;
}
.auth-brand .jingsuan-logo { width: 64px; height: 64px; }
.auth-brand strong { font-size: 18px; }
@media (max-width: 520px) {
  .jingsuan-logo { width: 44px; height: 44px; }
  .header .brand { gap: 8px; font-size: 16px; }
  .header { gap: 10px; }
}