/* ========================================
   Products Section - Tabbed Layout Design
   左侧导航 + 右侧详情的分栏设计
   ======================================== */

/* Section Background */
.sec-products-tabbed {
  background: linear-gradient(180deg, #f8f9fb 0%, #ffffff 50%, #f8f9fb 100%);
  padding: 80px 0;
  position: relative;
  overflow: hidden;
}

.sec-products-tabbed::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(0,0,0,0.06) 50%, transparent);
}

/* Tabbed Layout Container */
.products-tabbed-layout {
  display: grid;
  grid-template-columns: 320px 1fr;
  gap: 40px;
  margin-top: 48px;
  max-width: 1200px;
  margin-left: auto;
  margin-right: auto;
}

/* ========================================
   左侧产品导航
   ======================================== */

.products-nav {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.product-nav-item {
  position: relative;
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 20px 20px;
  background: rgba(255, 255, 255, 0.6);
  backdrop-filter: blur(10px);
  border: 1.5px solid rgba(0, 0, 0, 0.08);
  border-radius: 16px;
  cursor: pointer;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  text-align: left;
  overflow: hidden;
}

.product-nav-item::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 4px;
  background: linear-gradient(180deg, #0071E3, #00A3FF);
  opacity: 0;
  transition: opacity 0.3s ease;
}

.product-nav-item:hover {
  background: rgba(255, 255, 255, 0.9);
  border-color: rgba(0, 113, 227, 0.3);
  transform: translateX(4px);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
}

.product-nav-item.active {
  background: rgba(255, 255, 255, 0.95);
  border-color: #0071E3;
  box-shadow: 0 8px 24px rgba(0, 113, 227, 0.15);
}

.product-nav-item.active::before {
  opacity: 1;
}

/* Nav Badge */
.nav-badge {
  position: absolute;
  top: 8px;
  right: 8px;
  padding: 4px 10px;
  background: linear-gradient(135deg, #f59e0b, #f97316);
  color: white;
  font-size: 11px;
  font-weight: 700;
  border-radius: 10px;
  box-shadow: 0 2px 8px rgba(245, 158, 11, 0.4);
  z-index: 1;
}

/* Nav Icon */
.nav-icon {
  flex-shrink: 0;
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, rgba(0, 113, 227, 0.1), rgba(0, 163, 255, 0.1));
  border-radius: 12px;
  transition: all 0.3s ease;
}

.nav-icon svg {
  width: 24px;
  height: 24px;
  color: #0071E3;
  transition: all 0.3s ease;
}

.product-nav-item:hover .nav-icon {
  background: linear-gradient(135deg, rgba(0, 113, 227, 0.15), rgba(0, 163, 255, 0.15));
  transform: scale(1.1);
}

.product-nav-item.active .nav-icon {
  background: linear-gradient(135deg, #0071E3, #00A3FF);
}

.product-nav-item.active .nav-icon svg {
  color: white;
}

/* GPU 特殊颜色 */
.product-nav-item[data-product="gpu"] .nav-icon {
  background: linear-gradient(135deg, rgba(139, 92, 246, 0.1), rgba(217, 70, 239, 0.1));
}

.product-nav-item[data-product="gpu"] .nav-icon svg {
  color: #8B5CF6;
}

.product-nav-item[data-product="gpu"].active .nav-icon {
  background: linear-gradient(135deg, #8B5CF6, #D946EF);
}

.product-nav-item[data-product="gpu"].active .nav-icon svg {
  color: white;
}

.product-nav-item[data-product="gpu"].active::before {
  background: linear-gradient(180deg, #8B5CF6, #D946EF);
}

/* Dedicated 特殊颜色 */
.product-nav-item[data-product="dedicated"] .nav-icon {
  background: linear-gradient(135deg, rgba(16, 185, 129, 0.1), rgba(5, 150, 105, 0.1));
}

.product-nav-item[data-product="dedicated"] .nav-icon svg {
  color: #10B981;
}

.product-nav-item[data-product="dedicated"].active .nav-icon {
  background: linear-gradient(135deg, #10B981, #059669);
}

.product-nav-item[data-product="dedicated"].active .nav-icon svg {
  color: white;
}

.product-nav-item[data-product="dedicated"].active::before {
  background: linear-gradient(180deg, #10B981, #059669);
}

/* Domain 特殊颜色 */
.product-nav-item[data-product="domain"] .nav-icon {
  background: linear-gradient(135deg, rgba(249, 115, 22, 0.1), rgba(234, 88, 12, 0.1));
}

.product-nav-item[data-product="domain"] .nav-icon svg {
  color: #F97316;
}

.product-nav-item[data-product="domain"].active .nav-icon {
  background: linear-gradient(135deg, #F97316, #EA580C);
}

.product-nav-item[data-product="domain"].active .nav-icon svg {
  color: white;
}

.product-nav-item[data-product="domain"].active::before {
  background: linear-gradient(180deg, #F97316, #EA580C);
}

/* Nav Content */
.nav-content {
  flex: 1;
  min-width: 0;
}

.nav-content h3 {
  font-size: 16px;
  font-weight: 700;
  color: #1d1d1f;
  margin: 0 0 4px 0;
  letter-spacing: -0.01em;
  transition: color 0.3s ease;
}

.nav-content p {
  font-size: 13px;
  color: #6e6e73;
  margin: 0;
  transition: color 0.3s ease;
}

.product-nav-item.active .nav-content h3 {
  color: #0071E3;
}

.product-nav-item[data-product="gpu"].active .nav-content h3 {
  color: #8B5CF6;
}

.product-nav-item[data-product="dedicated"].active .nav-content h3 {
  color: #10B981;
}

.product-nav-item[data-product="domain"].active .nav-content h3 {
  color: #F97316;
}

/* Nav Arrow */
.nav-arrow {
  flex-shrink: 0;
  width: 20px;
  height: 20px;
  opacity: 0.3;
  transition: all 0.3s ease;
}

.nav-arrow svg {
  width: 100%;
  height: 100%;
  color: #1d1d1f;
}

.product-nav-item:hover .nav-arrow {
  opacity: 0.6;
  transform: translateX(4px);
}

.product-nav-item.active .nav-arrow {
  opacity: 1;
  color: #0071E3;
}

/* ========================================
   右侧产品详情
   ======================================== */

.products-content {
  position: relative;
  min-height: 500px;
}

.product-detail {
  position: absolute;
  inset: 0;
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: 40px;
  opacity: 0;
  visibility: hidden;
  transform: translateX(20px);
  transition: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);
  pointer-events: none;
}

.product-detail.active {
  opacity: 1;
  visibility: visible;
  transform: translateX(0);
  pointer-events: auto;
}

/* Detail Visual */
.detail-visual {
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, rgba(0, 113, 227, 0.05), rgba(0, 163, 255, 0.05));
  border-radius: 24px;
  padding: 40px;
  border: 2px solid rgba(0, 113, 227, 0.1);
  position: relative;
  overflow: hidden;
}

.detail-visual::before {
  content: '';
  position: absolute;
  inset: -100%;
  background: radial-gradient(circle, rgba(0, 113, 227, 0.1) 0%, transparent 70%);
  animation: rotate-gradient 10s linear infinite;
}

@keyframes rotate-gradient {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

.visual-icon {
  position: relative;
  z-index: 1;
  animation: float-visual 6s ease-in-out infinite;
}

@keyframes float-visual {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-10px); }
}

.visual-icon svg {
  width: 200px;
  height: 200px;
  filter: drop-shadow(0 10px 30px rgba(0, 113, 227, 0.2));
}

/* GPU Visual */
.product-detail[data-product="gpu"] .detail-visual {
  background: linear-gradient(135deg, rgba(139, 92, 246, 0.05), rgba(217, 70, 239, 0.05));
  border-color: rgba(139, 92, 246, 0.1);
}

.product-detail[data-product="gpu"] .detail-visual::before {
  background: radial-gradient(circle, rgba(139, 92, 246, 0.1) 0%, transparent 70%);
}

/* Dedicated Visual */
.product-detail[data-product="dedicated"] .detail-visual {
  background: linear-gradient(135deg, rgba(16, 185, 129, 0.05), rgba(5, 150, 105, 0.05));
  border-color: rgba(16, 185, 129, 0.1);
}

.product-detail[data-product="dedicated"] .detail-visual::before {
  background: radial-gradient(circle, rgba(16, 185, 129, 0.1) 0%, transparent 70%);
}

/* Domain Visual */
.product-detail[data-product="domain"] .detail-visual {
  background: linear-gradient(135deg, rgba(249, 115, 22, 0.05), rgba(234, 88, 12, 0.05));
  border-color: rgba(249, 115, 22, 0.1);
}

.product-detail[data-product="domain"] .detail-visual::before {
  background: radial-gradient(circle, rgba(249, 115, 22, 0.1) 0%, transparent 70%);
}

/* Detail Content */
.detail-content {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.detail-content h2 {
  font-size: 32px;
  font-weight: 800;
  color: #1d1d1f;
  margin: 0;
  letter-spacing: -0.02em;
  line-height: 1.2;
}

.detail-content .description {
  font-size: 16px;
  line-height: 1.6;
  color: #6e6e73;
  margin: 0;
}

/* Features List */
.features-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.feature-item {
  display: flex;
  align-items: center;
  gap: 12px;
}

.check-icon {
  flex-shrink: 0;
  width: 24px;
  height: 24px;
}

.feature-item span {
  font-size: 15px;
  color: #1d1d1f;
  font-weight: 500;
}

/* Detail Tags */
.detail-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.detail-tag {
  display: inline-flex;
  align-items: center;
  padding: 8px 16px;
  font-size: 13px;
  font-weight: 600;
  color: #0071E3;
  background: rgba(0, 113, 227, 0.08);
  border: 1px solid rgba(0, 113, 227, 0.15);
  border-radius: 20px;
  transition: all 0.3s ease;
}

.detail-tag:hover {
  background: rgba(0, 113, 227, 0.12);
  border-color: rgba(0, 113, 227, 0.25);
}

/* GPU Tags */
.product-detail[data-product="gpu"] .detail-tag {
  color: #8B5CF6;
  background: rgba(139, 92, 246, 0.08);
  border-color: rgba(139, 92, 246, 0.15);
}

.product-detail[data-product="gpu"] .detail-tag:hover {
  background: rgba(139, 92, 246, 0.12);
  border-color: rgba(139, 92, 246, 0.25);
}

/* Dedicated Tags */
.product-detail[data-product="dedicated"] .detail-tag {
  color: #10B981;
  background: rgba(16, 185, 129, 0.08);
  border-color: rgba(16, 185, 129, 0.15);
}

.product-detail[data-product="dedicated"] .detail-tag:hover {
  background: rgba(16, 185, 129, 0.12);
  border-color: rgba(16, 185, 129, 0.25);
}

/* Domain Tags */
.product-detail[data-product="domain"] .detail-tag {
  color: #F97316;
  background: rgba(249, 115, 22, 0.08);
  border-color: rgba(249, 115, 22, 0.15);
}

.product-detail[data-product="domain"] .detail-tag:hover {
  background: rgba(249, 115, 22, 0.12);
  border-color: rgba(249, 115, 22, 0.25);
}

/* Detail Actions */
.detail-actions {
  display: flex;
  gap: 16px;
  margin-top: auto;
  padding-top: 8px;
}

.btn-primary-large,
.btn-outline-large {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 28px;
  font-size: 16px;
  font-weight: 600;
  border-radius: 12px;
  text-decoration: none;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  cursor: pointer;
  border: 2px solid transparent;
}

.btn-primary-large {
  background: linear-gradient(135deg, #0071E3, #00A3FF);
  color: white;
  box-shadow: 0 4px 12px rgba(0, 113, 227, 0.3);
}

.btn-primary-large svg {
  width: 20px;
  height: 20px;
  transition: transform 0.3s ease;
}

.btn-primary-large:hover {
  box-shadow: 0 6px 20px rgba(0, 113, 227, 0.4);
  transform: translateY(-2px);
}

.btn-primary-large:hover svg {
  transform: translateX(4px);
}

.btn-outline-large {
  background: transparent;
  color: #0071E3;
  border-color: #0071E3;
}

.btn-outline-large:hover {
  background: rgba(0, 113, 227, 0.08);
  transform: translateY(-2px);
}

/* ========================================
   Responsive Design
   ======================================== */

@media (max-width: 1200px) {
  .products-tabbed-layout {
    grid-template-columns: 280px 1fr;
    gap: 32px;
  }

  .product-detail {
    grid-template-columns: 220px 1fr;
    gap: 32px;
  }

  .visual-icon svg {
    width: 160px;
    height: 160px;
  }
}

@media (max-width: 1024px) {
  .products-tabbed-layout {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .products-nav {
    flex-direction: row;
    overflow-x: auto;
    gap: 12px;
    padding-bottom: 8px;
    scrollbar-width: thin;
  }

  .product-nav-item {
    min-width: 200px;
    flex-direction: column;
    align-items: flex-start;
    padding: 16px;
  }

  .product-nav-item::before {
    width: 100%;
    height: 4px;
    top: auto;
    bottom: 0;
    left: 0;
    right: 0;
  }

  .product-nav-item:hover {
    transform: translateY(-4px);
  }

  .nav-badge {
    top: 12px;
    right: 12px;
  }

  .nav-arrow {
    display: none;
  }

  .product-detail {
    grid-template-columns: 1fr;
    gap: 32px;
    position: relative;
  }

  .detail-visual {
    padding: 32px;
  }

  .visual-icon svg {
    width: 140px;
    height: 140px;
  }
}

@media (max-width: 768px) {
  .sec-products-tabbed {
    padding: 60px 0;
  }

  .products-nav {
    margin: 0 -16px;
    padding: 0 16px 8px 16px;
  }

  .product-nav-item {
    min-width: 180px;
  }

  .nav-icon {
    width: 40px;
    height: 40px;
  }

  .nav-icon svg {
    width: 20px;
    height: 20px;
  }

  .nav-content h3 {
    font-size: 14px;
  }

  .nav-content p {
    font-size: 12px;
  }

  .detail-content h2 {
    font-size: 28px;
  }

  .detail-content .description {
    font-size: 15px;
  }

  .detail-visual {
    padding: 24px;
  }

  .visual-icon svg {
    width: 120px;
    height: 120px;
  }

  .detail-actions {
    flex-direction: column;
  }

  .btn-primary-large,
  .btn-outline-large {
    width: 100%;
    justify-content: center;
  }
}

@media (max-width: 480px) {
  .product-nav-item {
    min-width: 160px;
    padding: 14px;
  }

  .detail-content h2 {
    font-size: 24px;
  }

  .feature-item span {
    font-size: 14px;
  }

  .btn-primary-large,
  .btn-outline-large {
    padding: 12px 24px;
    font-size: 15px;
  }
}

/* ========================================
   Accessibility
   ======================================== */

.product-nav-item:focus {
  outline: 3px solid #0071E3;
  outline-offset: 4px;
}

.btn-primary-large:focus,
.btn-outline-large:focus {
  outline: 3px solid #0071E3;
  outline-offset: 4px;
}

/* Reduced Motion */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}