/* ==========================================================================
   思达普科技官网 · 购物袋抽屉（所有页面共用）
   ========================================================================== */

.cart-backdrop {
  position: fixed;
  inset: 0;
  z-index: 1000;
  background-color: rgba(0, 0, 0, 0.4);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s ease;
}

.cart-backdrop.is-open {
  opacity: 1;
  pointer-events: auto;
}

.cart-drawer {
  position: fixed;
  top: 0;
  right: 0;
  bottom: 0;
  z-index: 1001;
  display: flex;
  flex-direction: column;
  width: min(420px, 100%);
  background-color: var(--color-bg-card);
  box-shadow: -16px 0 40px rgba(0, 0, 0, 0.12);
  transform: translateX(100%);
  transition: transform 0.35s var(--ease-out);
}

.cart-drawer.is-open {
  transform: none;
}

.cart-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 20px;
  border-bottom: 1px solid var(--color-border);
}

.cart-header h2 {
  font-size: 17px;
  font-weight: 600;
}

.cart-close {
  display: flex;
  width: 36px;
  height: 36px;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background-color: var(--color-bg-secondary);
  color: var(--color-text-secondary);
  font-size: 16px;
  transition: color 0.3s ease;
}

.cart-close:hover {
  color: var(--color-text-primary);
}

.cart-items {
  display: flex;
  flex: 1;
  flex-direction: column;
  gap: 16px;
  overflow-y: auto;
  padding: 20px;
}

.cart-item {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 8px 12px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--color-border);
}

.cart-item-name {
  font-size: 15px;
  font-weight: 600;
}

.cart-item-plan {
  margin-top: 2px;
  font-size: 13px;
  color: var(--color-text-secondary);
}

.cart-item-side {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 8px;
}

.cart-item-price {
  font-size: 14px;
}

.cart-qty {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 3px 10px;
  border: 1px solid var(--color-border);
  border-radius: 980px;
}

.cart-qty button {
  width: 20px;
  height: 20px;
  font-size: 14px;
  color: var(--color-accent);
}

.cart-remove {
  font-size: 12px;
  color: var(--color-text-tertiary);
  text-decoration: underline;
}

.cart-empty {
  padding: 56px 0;
  font-size: 14px;
  color: var(--color-text-tertiary);
  text-align: center;
}

.cart-empty a {
  color: var(--color-accent);
  text-decoration: none;
}

.cart-footer {
  padding: 16px 20px 20px;
  border-top: 1px solid var(--color-border);
}

.cart-total {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  margin-bottom: 12px;
}

.cart-total-label {
  font-size: 14px;
  color: var(--color-text-secondary);
}

.cart-total-value {
  font-size: 20px;
  font-weight: 600;
}

.cart-note {
  margin-top: 10px;
  font-size: 12px;
  color: var(--color-text-tertiary);
  text-align: center;
}