/* ========== 产品详情页样式 ========== */

/* Product Banner */
.product-banner {
  position: relative;
  height: 50vh;
  min-height: 400px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: url('../images/products/cleaner.jpg') center/cover no-repeat;
  overflow: hidden;
}

.product-banner-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(0, 82, 217, 0.9) 0%, rgba(0, 102, 255, 0.85) 50%, rgba(0, 200, 180, 0.8) 100%);
}

.product-banner-content {
  position: relative;
  z-index: 2;
  text-align: center;
  color: #fff;
  padding-top: 72px;
}

.product-banner-badge {
  display: inline-block;
  padding: 6px 20px;
  background: rgba(255, 255, 255, 0.2);
  backdrop-filter: blur(10px);
  border-radius: 50px;
  font-size: 14px;
  font-weight: 500;
  margin-bottom: 20px;
  border: 1px solid rgba(255, 255, 255, 0.3);
}

.product-banner-title {
  font-size: 56px;
  font-weight: 700;
  margin-bottom: 16px;
  letter-spacing: 2px;
}

.product-banner-subtitle {
  font-size: 20px;
  opacity: 0.9;
}

@media (max-width: 767px) {
  .product-banner { height: 40vh; min-height: 300px; }
  .product-banner-title { font-size: 32px; }
  .product-banner-subtitle { font-size: 16px; }
}

/* Breadcrumb */
.pd-breadcrumb {
  background: #F8F9FC;
  padding: 16px 0;
  border-bottom: 1px solid #E5E7EB;
}

.pd-breadcrumb a {
  font-size: 14px;
  color: #8C8CA1;
  transition: color 0.2s ease;
}

.pd-breadcrumb a:hover {
  color: #0052D9;
}

.pd-breadcrumb-sep {
  font-size: 14px;
  color: #E5E7EB;
  margin: 0 8px;
}

.pd-breadcrumb-current {
  font-size: 14px;
  color: #0052D9;
  font-weight: 500;
}

/* Product Hero */
.pd-hero {
  padding: 100px 0;
  background: #fff;
}

.pd-hero-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
}

.pd-hero-content .section-label {
  margin-bottom: 24px;
}

.product-description {
  font-size: 16px;
  line-height: 2;
  color: #4A4A68;
  margin-bottom: 32px;
}

.product-description p {
  margin-bottom: 16px;
}

.product-features {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
}

.product-feature-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 16px;
  background: #F8F9FC;
  border-radius: 8px;
  font-size: 14px;
  font-weight: 500;
  color: #1A1A2E;
  transition: all 0.3s ease;
}

.product-feature-item:hover {
  background: #E6F0FF;
  transform: translateX(4px);
}

.product-feature-item svg {
  color: #0052D9;
  flex-shrink: 0;
}

.pd-hero-image-wrap {
  position: relative;
}

/* Product Carousel */
.product-carousel {
  position: relative;
  border-radius: 16px;
  overflow: hidden;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.1);
  background: #fff;
  min-height: 400px;
}

.carousel-track {
  position: relative;
  width: 100%;
  min-height: 400px;
}

.carousel-slide {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 40px;
  opacity: 0;
  transition: opacity 0.5s ease;
}

.carousel-slide.active {
  opacity: 1;
  z-index: 1;
}

.carousel-slide img {
  max-width: 100%;
  max-height: 400px;
  object-fit: contain;
}

.carousel-controls {
  position: absolute;
  top: 50%;
  left: 0;
  right: 0;
  transform: translateY(-50%);
  display: flex;
  justify-content: space-between;
  padding: 0 16px;
  z-index: 10;
  pointer-events: none;
}

.carousel-btn {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.9);
  border: none;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all 0.3s ease;
  pointer-events: auto;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

.carousel-btn:hover {
  background: #0052D9;
  color: #fff;
  transform: scale(1.1);
}

.carousel-indicators {
  position: absolute;
  bottom: 20px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  gap: 8px;
  z-index: 10;
}

.carousel-indicator {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.5);
  border: 2px solid rgba(255, 255, 255, 0.8);
  cursor: pointer;
  transition: all 0.3s ease;
}

.carousel-indicator.active {
  background: #0052D9;
  border-color: #0052D9;
  transform: scale(1.2);
}

.product-hero-image {
  border-radius: 16px;
  overflow: hidden;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.1);
  background: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 40px;
  min-height: 400px;
}

.product-hero-image img {
  max-width: 100%;
  max-height: 400px;
  object-fit: contain;
}

@media (max-width: 991px) {
  .pd-hero-layout { grid-template-columns: 1fr; gap: 40px; }
  .product-features { grid-template-columns: 1fr; }
}

@media (max-width: 767px) {
  .pd-hero { padding: 60px 0; }
  .product-hero-image img { height: 280px; }
}

/* Section Base */
.pd-section {
  padding: 100px 0;
}

.pd-section-gray {
  background: #F8F9FC;
}

.pd-section-header {
  margin-bottom: 60px;
}

.pd-section-header .section-label {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 14px;
  font-weight: 500;
  color: #0052D9;
  text-transform: uppercase;
  letter-spacing: 2px;
  margin-bottom: 16px;
}

.pd-section-header .section-label-line {
  width: 40px;
  height: 2px;
  background: #0052D9;
}

.pd-section-title {
  font-size: 42px;
  font-weight: 700;
  color: #1A1A2E;
  line-height: 1.3;
}

@media (max-width: 767px) {
  .pd-section { padding: 60px 0; }
  .pd-section-title { font-size: 28px; }
  .pd-section-header { margin-bottom: 40px; }
}

/* Advantages Grid */
.pd-advantages-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
}

.advantage-card {
  padding: 40px 32px;
  background: #fff;
  border-radius: 16px;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.06);
  transition: all 0.3s ease;
  position: relative;
  overflow: hidden;
}

.advantage-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, #0052D9, #00C8B4);
  transform: scaleX(0);
  transition: transform 0.3s ease;
}

.advantage-card:hover::before {
  transform: scaleX(1);
}

.advantage-card:hover {
  transform: translateY(-8px);
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.1);
}

.advantage-icon {
  width: 72px;
  height: 72px;
  background: #E6F0FF;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #0052D9;
  margin-bottom: 24px;
  transition: all 0.3s ease;
}

.advantage-card:hover .advantage-icon {
  background: #0052D9;
  color: #fff;
}

.advantage-card h3 {
  font-size: 20px;
  font-weight: 600;
  color: #1A1A2E;
  margin-bottom: 12px;
}

.advantage-card p {
  font-size: 15px;
  color: #4A4A68;
  line-height: 1.8;
}

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

/* Scenarios */
.pd-scenarios-list {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.pd-scenarios-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
}

.scenario-item {
  display: flex;
  gap: 24px;
  padding: 32px;
  background: #F8F9FC;
  border-radius: 12px;
  transition: all 0.3s ease;
}

.scenario-item:hover {
  background: #fff;
  box-shadow: 0 8px 30px rgba(0, 0, 0, 0.08);
  transform: translateX(8px);
}

.scenario-card {
  background: #fff;
  border-radius: 16px;
  overflow: hidden;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.06);
  transition: all 0.3s ease;
}

.scenario-card:hover {
  transform: translateY(-8px);
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.12);
}

.scenario-image {
  width: 100%;
  height: 200px;
  overflow: hidden;
  background: #F8F9FC;
}

.scenario-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}

.scenario-card:hover .scenario-image img {
  transform: scale(1.08);
}

.scenario-card .scenario-content {
  padding: 28px 24px;
}

.scenario-card .scenario-icon {
  width: 48px;
  height: 48px;
  background: #E6F0FF;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #0052D9;
  margin-bottom: 16px;
}

.scenario-card h3 {
  font-size: 18px;
  font-weight: 600;
  color: #1A1A2E;
  margin-bottom: 10px;
}

.scenario-card p {
  font-size: 14px;
  color: #4A4A68;
  line-height: 1.8;
}

@media (max-width: 991px) {
  .pd-scenarios-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 767px) {
  .pd-scenarios-grid { grid-template-columns: 1fr; gap: 24px; }
  .scenario-item { flex-direction: column; gap: 16px; padding: 24px; }
}

/* Specs Table */
.specs-table {
  width: 100%;
  border-collapse: collapse;
  background: #fff;
  border-radius: 12px;
  overflow: hidden;
}

.specs-table thead {
  background: linear-gradient(90deg, #0052D9, #0066FF);
}

.specs-table th {
  padding: 18px 24px;
  font-size: 14px;
  font-weight: 600;
  color: #fff;
  text-align: left;
  white-space: nowrap;
}

.specs-table td {
  padding: 16px 24px;
  font-size: 14px;
  color: #4A4A68;
  border-bottom: 1px solid #E5E7EB;
}

.specs-table tbody tr:last-child td {
  border-bottom: none;
}

.specs-table tbody tr:hover {
  background: #F8F9FC;
}

/* Documents */
.pd-docs-list {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.doc-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 24px 32px;
  background: #F8F9FC;
  border-radius: 12px;
  transition: all 0.3s ease;
}

.doc-item:hover {
  background: #E6F0FF;
  transform: translateX(4px);
}

.doc-info h3 {
  font-size: 16px;
  font-weight: 600;
  color: #1A1A2E;
  margin-bottom: 4px;
}

.doc-info p {
  font-size: 14px;
  color: #8C8CA1;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 10px 24px;
  font-size: 14px;
  font-weight: 500;
  border-radius: 8px;
  border: none;
  cursor: pointer;
  transition: all 0.2s ease;
  text-decoration: none;
}

.btn-secondary {
  border: 1px solid #0052D9;
  color: #0052D9;
  background: transparent;
}

.btn-secondary:hover {
  background: #0052D9;
  color: #fff;
}

.btn-sm {
  padding: 8px 20px;
  font-size: 13px;
}

@media (max-width: 767px) {
  .doc-item { flex-direction: column; align-items: flex-start; gap: 16px; padding: 20px 24px; }
}

/* Usage Section */
.pd-usage-process-title,
.pd-usage-params-title {
  font-size: 18px;
  font-weight: 600;
  color: #1A1A2E;
  margin-bottom: 20px;
  padding-bottom: 12px;
  border-bottom: 2px solid #0052D9;
}

.pd-usage-process-text {
  font-size: 15px;
  color: #4A4A68;
  line-height: 1.8;
  margin-bottom: 24px;
}

.pd-usage-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 12px 0;
  border-bottom: 1px solid #E5E7EB;
}

.pd-usage-item:last-child {
  border-bottom: none;
}

.pd-usage-label {
  font-size: 14px;
  color: #8C8CA1;
}

.pd-usage-value {
  font-size: 14px;
  color: #1A1A2E;
  font-weight: 500;
}

.pd-usage-params-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
}

.pd-usage-param-card {
  padding: 20px;
  background: #fff;
  border-radius: 8px;
  text-align: center;
  transition: all 0.3s ease;
}

.pd-usage-param-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.08);
}

.pd-usage-param-label {
  display: block;
  font-size: 13px;
  color: #8C8CA1;
  margin-bottom: 8px;
}

.pd-usage-param-value {
  display: block;
  font-size: 15px;
  color: #0052D9;
  font-weight: 600;
}

@media (max-width: 767px) {
  .pd-usage-params-grid { grid-template-columns: repeat(2, 1fr); }
}

/* Usage Combined Layout */
.pd-usage-combined {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.pd-usage-process,
.pd-usage-params,
.pd-specs-integrated {
  padding: 32px;
  background: #F8F9FC;
  border-radius: 12px;
}

.pd-specs-integrated .specs-table {
  box-shadow: none;
}

@media (max-width: 767px) {
  .pd-usage-process,
  .pd-usage-params,
  .pd-specs-integrated { padding: 24px; }
}