/* ========== 购物车页面专用样式 ========== */

.cart-hero {
  background: var(--cn-gradient-hero);
  padding: 7rem 0 3rem;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.cart-hero h1 {
  font-size: 2.5rem;
  font-weight: 800;
  color: var(--cn-text-primary);
  margin-bottom: 0.5rem;
}

.cart-hero p {
  color: var(--cn-text-secondary);
  font-size: 1.05rem;
}

.cart-section {
  padding: 2rem 0 4rem;
  min-height: 50vh;
}

/* ===== 空购物车 ===== */
.cart-empty {
  text-align: center;
  padding: 4rem 1rem;
}

.cart-empty .empty-icon {
  font-size: 4rem;
  color: var(--cn-text-muted);
  margin-bottom: 1.5rem;
  opacity: 0.5;
}

.cart-empty h3 {
  color: var(--cn-text-secondary);
  font-weight: 600;
  margin-bottom: 0.5rem;
}

.cart-empty p {
  color: var(--cn-text-muted);
  margin-bottom: 2rem;
}

.cart-empty .btn-browse {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: var(--cn-gradient-accent);
  color: #fff;
  padding: 0.8rem 2rem;
  border-radius: var(--cn-radius-md);
  font-weight: 600;
  text-decoration: none;
  transition: var(--cn-transition);
}

.cart-empty .btn-browse:hover {
  transform: translateY(-2px);
  box-shadow: var(--cn-shadow-glow);
}

/* ===== 购物车列表 ===== */
.cart-layout {
  display: grid;
  grid-template-columns: 1fr 340px;
  gap: 2rem;
  align-items: start;
}

@media (max-width: 991px) {
  .cart-layout {
    grid-template-columns: 1fr;
  }
}

.cart-items {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.cart-item {
  background: var(--cn-gradient-card);
  border: 1px solid var(--cn-border);
  border-radius: var(--cn-radius-lg);
  padding: 1.25rem 1.5rem;
  display: flex;
  align-items: center;
  gap: 1.25rem;
  transition: var(--cn-transition);
  animation: cartItemFadeIn 0.3s ease;
}

@keyframes cartItemFadeIn {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}

.cart-item:hover {
  border-color: var(--cn-accent);
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.2);
}

.cart-item-icon {
  width: 48px;
  height: 48px;
  border-radius: var(--cn-radius-md);
  background: var(--cn-dark-4);
  border: 1px solid var(--cn-border);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  font-size: 1.4rem;
  color: var(--cn-accent);
}

.cart-item-info {
  flex: 1;
  min-width: 0;
}

.cart-item-name {
  font-size: 1rem;
  font-weight: 700;
  color: var(--cn-text-primary);
  margin-bottom: 0.25rem;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.cart-item-spec {
  font-size: 0.82rem;
  color: var(--cn-text-muted);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.cart-item-type {
  display: inline-block;
  font-size: 0.7rem;
  background: rgba(59, 130, 246, 0.12);
  color: var(--cn-accent-light);
  padding: 0.1rem 0.5rem;
  border-radius: 50px;
  font-weight: 600;
}

.cart-item-period {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  margin-top: 0.4rem;
}

.cart-item-period label {
  font-size: 0.78rem;
  color: var(--cn-text-muted);
  margin: 0;
}

.cart-item-period select {
  background: var(--cn-dark-4);
  border: 1px solid var(--cn-border);
  color: var(--cn-text-secondary);
  border-radius: var(--cn-radius-sm);
  padding: 0.2rem 0.5rem;
  font-size: 0.78rem;
  cursor: pointer;
}

.cart-item-qty {
  display: flex;
  align-items: center;
  gap: 0;
  border: 1px solid var(--cn-border);
  border-radius: var(--cn-radius-sm);
  overflow: hidden;
  flex-shrink: 0;
}

.cart-item-qty button {
  width: 32px;
  height: 32px;
  border: none;
  background: var(--cn-dark-4);
  color: var(--cn-text-secondary);
  font-size: 1rem;
  cursor: pointer;
  transition: var(--cn-transition);
  display: flex;
  align-items: center;
  justify-content: center;
}

.cart-item-qty button:hover {
  background: var(--cn-accent);
  color: #fff;
}

.cart-item-qty .qty-value {
  width: 40px;
  text-align: center;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--cn-text-primary);
  background: var(--cn-dark-3);
  height: 32px;
  line-height: 32px;
}

/* 域名：数量禁用样式 */
.cart-item-qty.qty-disabled {
  flex-direction: column;
  background: var(--cn-dark-4);
  padding: 0.4rem 0.6rem;
  border-style: dashed;
  min-width: 76px;
}

.cart-item-qty.qty-disabled .qty-value {
  width: auto;
  background: none;
  height: auto;
  line-height: 1.4;
  font-weight: 700;
}

.cart-item-qty .qty-hint {
  font-size: 0.68rem;
  color: var(--cn-text-muted);
  margin-top: 2px;
  white-space: nowrap;
}

.cart-item-price {
  text-align: right;
  flex-shrink: 0;
  min-width: 90px;
}

.cart-item-price .subtotal {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--cn-text-primary);
}

.cart-item-price .unit-price {
  font-size: 0.75rem;
  color: var(--cn-text-muted);
}

/* 原价划线 → 现价 */
.cart-item-price .price-original {
  text-decoration: line-through;
  color: var(--cn-text-muted);
  opacity: 0.7;
}

.cart-item-price .price-now {
  color: var(--cn-accent-light);
  font-weight: 600;
}

/* 节省金额标签 */
.cart-item-savings {
  display: inline-flex;
  align-items: center;
  gap: 0.2rem;
  font-size: 0.7rem;
  color: var(--cn-green);
  background: rgba(16, 185, 129, 0.1);
  padding: 0.1rem 0.4rem;
  border-radius: var(--cn-radius-sm);
  margin-top: 2px;
  white-space: nowrap;
}

.cart-item-savings i {
  font-size: 0.65rem;
}

/* 域名价格明细：首年价 + 续费价 */
.domain-price-detail {
  font-size: 0.72rem;
  color: var(--cn-text-muted);
  margin-top: 2px;
  line-height: 1.5;
  white-space: nowrap;
}

.domain-price-detail::before {
  content: '';
  display: inline-block;
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: var(--cn-accent);
  margin-right: 4px;
  vertical-align: middle;
  opacity: 0.5;
}

.cart-item-remove {
  background: none;
  border: none;
  color: var(--cn-text-muted);
  font-size: 1.2rem;
  cursor: pointer;
  padding: 0.3rem;
  border-radius: var(--cn-radius-sm);
  transition: var(--cn-transition);
  flex-shrink: 0;
}

.cart-item-remove:hover {
  color: #f87171;
  background: rgba(239, 68, 68, 0.1);
}

/* ===== 侧边栏结算 ===== */
.cart-sidebar {
  position: sticky;
  top: 100px;
  background: var(--cn-gradient-card);
  border: 1px solid var(--cn-border);
  border-radius: var(--cn-radius-lg);
  padding: 1.5rem;
}

.cart-sidebar h4 {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--cn-text-primary);
  margin-bottom: 1.25rem;
  padding-bottom: 1rem;
  border-bottom: 1px solid var(--cn-border);
}

.cart-summary-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.5rem 0;
  font-size: 0.9rem;
}

.cart-summary-row .label {
  color: var(--cn-text-muted);
}

.cart-summary-row .value {
  color: var(--cn-text-secondary);
  font-weight: 600;
}

.cart-summary-row.discount .value {
  color: #10b981;
}

.cart-summary-total {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1rem 0 0;
  margin-top: 0.5rem;
  border-top: 1px solid var(--cn-border);
}

.cart-summary-total .label {
  font-size: 1rem;
  font-weight: 600;
  color: var(--cn-text-primary);
}

.cart-summary-total .amount {
  font-size: 1.8rem;
  font-weight: 800;
  color: var(--cn-accent);
}

.cart-summary-total .amount .currency {
  font-size: 1rem;
  vertical-align: top;
}

.btn-checkout {
  width: 100%;
  background: var(--cn-gradient-accent);
  color: #fff;
  border: none;
  border-radius: var(--cn-radius-md);
  padding: 0.9rem;
  font-size: 1rem;
  font-weight: 700;
  cursor: pointer;
  transition: var(--cn-transition);
  margin-top: 1.25rem;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
}

.btn-checkout:hover {
  transform: translateY(-2px);
  box-shadow: var(--cn-shadow-glow);
}

.btn-checkout:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  transform: none;
  box-shadow: none;
}

.btn-clear-cart {
  width: 100%;
  background: none;
  border: 1px solid var(--cn-border);
  color: var(--cn-text-muted);
  border-radius: var(--cn-radius-md);
  padding: 0.6rem;
  font-size: 0.85rem;
  cursor: pointer;
  transition: var(--cn-transition);
  margin-top: 0.75rem;
}

.btn-clear-cart:hover {
  border-color: #f87171;
  color: #f87171;
}

.cart-tips {
  margin-top: 1.25rem;
  padding: 0.85rem;
  background: rgba(59, 130, 246, 0.06);
  border: 1px solid rgba(59, 130, 246, 0.15);
  border-radius: var(--cn-radius-md);
  font-size: 0.8rem;
  color: var(--cn-text-muted);
  line-height: 1.6;
}

.cart-tips i {
  color: var(--cn-accent);
  margin-right: 0.3rem;
}

/* ===== 购物车头部工具栏 ===== */
.cart-toolbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1.5rem;
}

.cart-toolbar .item-count {
  font-size: 0.9rem;
  color: var(--cn-text-muted);
}

.cart-toolbar .item-count strong {
  color: var(--cn-text-primary);
  font-size: 1.1rem;
}

/* ===== 结算确认弹窗 ===== */
.checkout-modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.7);
  backdrop-filter: blur(4px);
  z-index: 9999;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 1rem;
}

.checkout-modal-overlay.show {
  display: flex;
  animation: fadeIn 0.2s ease;
}

.checkout-modal {
  background: var(--cn-gradient-card);
  border: 1px solid var(--cn-border);
  border-radius: var(--cn-radius-lg);
  padding: 2rem;
  max-width: 480px;
  width: 100%;
  text-align: center;
  animation: scaleIn 0.25s ease;
}

@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

@keyframes scaleIn {
  from { opacity: 0; transform: scale(0.95); }
  to { opacity: 1; transform: scale(1); }
}

.checkout-modal .modal-icon {
  font-size: 3rem;
  color: var(--cn-accent);
  margin-bottom: 1rem;
}

.checkout-modal h3 {
  color: var(--cn-text-primary);
  font-weight: 700;
  margin-bottom: 0.5rem;
}

.checkout-modal p {
  color: var(--cn-text-secondary);
  font-size: 0.9rem;
  margin-bottom: 1.5rem;
}

.checkout-modal .modal-total {
  font-size: 2rem;
  font-weight: 800;
  color: var(--cn-accent);
  margin-bottom: 1.5rem;
}

.checkout-modal .btn-group {
  display: flex;
  gap: 0.75rem;
}

.checkout-modal .btn-confirm {
  flex: 1;
  background: var(--cn-gradient-accent);
  color: #fff;
  border: none;
  border-radius: var(--cn-radius-md);
  padding: 0.8rem;
  font-weight: 600;
  cursor: pointer;
  transition: var(--cn-transition);
}

.checkout-modal .btn-confirm:hover {
  transform: translateY(-1px);
  box-shadow: var(--cn-shadow-glow);
}

.checkout-modal .btn-cancel {
  flex: 1;
  background: var(--cn-dark-4);
  color: var(--cn-text-secondary);
  border: 1px solid var(--cn-border);
  border-radius: var(--cn-radius-md);
  padding: 0.8rem;
  font-weight: 600;
  cursor: pointer;
  transition: var(--cn-transition);
}

.checkout-modal .btn-cancel:hover {
  border-color: var(--cn-text-muted);
}

/* ===== Toast 提示 ===== */
.cart-toast {
  position: fixed;
  top: 90px;
  right: 20px;
  background: var(--cn-gradient-card);
  border: 1px solid var(--cn-green);
  border-radius: var(--cn-radius-md);
  padding: 0.8rem 1.25rem;
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-size: 0.9rem;
  color: var(--cn-text-primary);
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
  z-index: 10000;
  animation: toastSlide 0.3s ease;
}

.cart-toast i {
  color: var(--cn-green);
  font-size: 1.2rem;
}

@keyframes toastSlide {
  from { opacity: 0; transform: translateX(50px); }
  to { opacity: 1; transform: translateX(0); }
}

/* ===== 响应式 ===== */
@media (max-width: 767px) {
  .cart-item {
    flex-wrap: wrap;
    gap: 0.75rem;
  }

  .cart-item-info {
    width: 100%;
  }

  .cart-item-price {
    min-width: auto;
  }

  .cart-sidebar {
    position: static;
  }
}