/* ===== WeChat QR Modal ===== */
.wechat-modal-overlay {
  position: fixed;
  inset: 0;
  background-color: rgba(0, 0, 0, 0.7);
  z-index: calc(var(--z-header) + 50);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--transition-normal), visibility var(--transition-normal);
}

.wechat-modal-overlay.active {
  opacity: 1;
  visibility: visible;
}

.wechat-modal {
  position: relative;
  width: 100%;
  max-width: 400px;
  margin: 0 24px;
  background-color: var(--color-bg);
  border-radius: var(--radius-md);
  padding: 40px 32px 32px;
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.2);
  text-align: center;
  transform: translateY(20px);
  transition: transform var(--transition-normal);
}

.wechat-modal-overlay.active .wechat-modal {
  transform: translateY(0);
}

.wechat-modal-close {
  position: absolute;
  top: 12px;
  right: 12px;
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-text-muted);
  background: none;
  border: none;
  cursor: pointer;
  transition: color var(--transition-fast);
  border-radius: 50%;
}

.wechat-modal-close:hover {
  color: var(--color-text-primary);
  background-color: var(--color-bg-alt);
}

.wechat-modal-content {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-md);
}

.wechat-modal-qr {
  width: 100%;
  max-width: 260px;
  height: auto;
  border-radius: var(--radius-sm);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
}

.wechat-modal-placeholder {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-xl) 0;
  color: var(--color-text-muted);
}

.wechat-modal-placeholder p {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
}

.wechat-modal-tip {
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
  margin: 0;
}

@media (max-width: 767px) {
  .wechat-modal {
    margin: 0 16px;
    padding: 36px 24px 24px;
  }

  .wechat-modal-qr {
    max-width: 220px;
  }
}