.brand-logo {
  display: block;
  width: 220px;
  max-width: 72vw;
  height: auto;
}

.key-info {
  min-height: 20px;
  margin: 7px 2px -4px;
  color: #315ec6;
  font-size: 13px;
}

.key-info.error {
  color: #d14343;
}

.notice-box p {
  margin: 0;
}

.notice-box p + p {
  margin-top: 3px;
}

.used-code-message {
  margin: 10px 0 0;
  color: #111827;
  font-size: 14px;
  font-weight: 800;
}

.used-code-message[hidden] {
  display: none;
}

.quota-grid {
  grid-template-columns: repeat(4, 1fr);
}

.inline-contact {
  margin-top: 24px;
  text-align: center;
}

.inline-contact > p {
  margin: 0;
  color: #667085;
  font-size: 14px;
}

.wechat-toggle {
  display: inline;
  margin: 0;
  padding: 0;
  border: 0;
  background: transparent;
  color: #315ec6;
  font: inherit;
  font-weight: 800;
  cursor: pointer;
}

.wechat-toggle:hover {
  text-decoration: underline;
}

.wechat-toggle:focus-visible {
  border-radius: 4px;
  outline: 3px solid rgba(79, 117, 217, .22);
  outline-offset: 3px;
}

.inline-qr-panel {
  display: flex;
  width: min(100%, 430px);
  align-items: center;
  justify-content: center;
  gap: 18px;
  margin: 18px auto 0;
  padding: 18px 22px;
  border: 1px solid #dce3ee;
  border-radius: 14px;
  background: #f8faff;
  box-shadow: 0 12px 30px rgba(49, 94, 198, .10);
  text-align: left;
}

.inline-qr-panel[hidden] {
  display: none;
}

.inline-qr-panel img {
  width: 116px;
  height: 116px;
  padding: 5px;
  border: 1px solid #dce3ee;
  border-radius: 10px;
  background: #fff;
  object-fit: contain;
}

.inline-qr-panel div {
  display: grid;
  gap: 7px;
}

.inline-qr-panel strong {
  color: #172033;
}

.inline-qr-panel span {
  color: #315ec6;
  font-weight: 800;
}

.inline-qr-panel small {
  color: #7b8494;
}

footer {
  justify-content: flex-start;
}

@media (max-width: 640px) {
  .brand-logo {
    width: 180px;
  }

  .quota-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .inline-qr-panel {
    flex-direction: column;
    text-align: center;
  }
}