.product-purchase-modal {
  position: fixed;
  inset: 0;
  z-index: 10050;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px 16px;
  box-sizing: border-box;
}
.product-purchase-modal[hidden] {
  display: none !important;
}
.product-purchase-modal__backdrop {
  position: absolute;
  inset: 0;
  background: rgba(88, 88, 88, 0.9);
}
.product-purchase-modal__panel {
  position: relative;
  max-width: 920px;
  width: 100%;
  text-align: center;
  transition: transform 0.45s cubic-bezier(0.4, 0, 0.2, 1), opacity 0.4s ease;
  will-change: transform, opacity;
}
.product-purchase-modal__title {
  margin: 0 0 28px;
  font-size: clamp(16px, 2.8vw, 22px);
  font-weight: 600;
  color: #fff;
  line-height: 1.45;
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'PingFang SC',
    'Microsoft YaHei', sans-serif;
}
.product-purchase-modal__cards {
  display: flex;
  flex-wrap: wrap;
  gap: 20px;
  justify-content: center;
  align-items: stretch;
}
.product-purchase-card {
  flex: 1 1 280px;
  max-width: 440px;
  margin: 0;
  padding: 28px 19px 32px;
  border: none;
  border-radius: 20px;
  cursor: pointer;
  text-align: center;
  box-shadow: 0 12px 32px rgba(0, 0, 0, 0.12);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'PingFang SC',
    'Microsoft YaHei', sans-serif;
  background: #eef1fb;
}
.product-purchase-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 16px 40px rgba(0, 0, 0, 0.16);
  background: #fff;
}
.product-purchase-card:focus {
  outline: 3px solid rgba(255, 255, 255, 0.85);
  outline-offset: 3px;
  background: #fff;
}
.product-purchase-card__icons {
  display: flex;
  align-items: flex-end;
  justify-content: center;
  gap: 12px;
  min-height: 120px;
  margin-bottom: 18px;
}
.product-purchase-card__icons img {
  display: block;
  height: auto;
  max-height: 100px;
  width: auto;
  object-fit: contain;
}
.product-purchase-card__icons--single {
  min-height: 120px;
  margin-bottom: 18px;
}
.product-purchase-card__icons--single img {
  max-height: 120px;
}
.product-purchase-card__text {
  margin: 0;
  font-size: clamp(14px, 2.2vw, 17px);
  line-height: 1.55;
  color: #111;
}
.product-purchase-card__text strong {
  font-weight: 700;
}

.product-purchase-card.is-selected {
  outline: 3px solid #1a5cff;
  outline-offset: 3px;
  background: #fff;
  box-shadow: 0 16px 40px rgba(26, 92, 255, 0.2);
}

.product-purchase-fab {
  position: fixed;
  right: 24px;
  bottom: 24px;
  z-index: 10060;
  width: 56px;
  height: 56px;
  padding: 0;
  border: none;
  border-radius: 50%;
  background: transparent;
  box-shadow: 0 6px 24px rgba(0, 0, 0, 0.18);
  cursor: pointer;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.product-purchase-fab:hover {
  transform: scale(1.06);
  box-shadow: 0 8px 28px rgba(0, 0, 0, 0.22);
}

.product-purchase-fab:focus {
  outline: 3px solid rgba(26, 92, 255, 0.45);
  outline-offset: 3px;
}

.product-purchase-fab[hidden] {
  display: none !important;
}

.product-purchase-fab img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: contain;
  border-radius: 50%;
}

.product-purchase-modal--collapsing .product-purchase-modal__backdrop {
  opacity: 0;
  transition: opacity 0.4s ease;
}

.product-purchase-modal--expanding .product-purchase-modal__backdrop {
  animation: product-modal-backdrop-in 0.35s ease forwards;
}

@keyframes product-modal-backdrop-in {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}