/* ===================================
   产品优势页面样式
   =================================== */

/* 主图区域 */
.product-page .hero-section {
  padding-top: 100px;
  background: var(--tech-blue);
  min-height: 550px;
  display: flex;
  align-items: center;
  position: relative;
  overflow: hidden;
}

.product-page .hero-bg {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(0, 212, 170, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0, 212, 170, 0.03) 1px, transparent 1px);
  background-size: 50px 50px;
}

.product-page .hero-section::after {
  content: '';
  position: absolute;
  top: -30%;
  right: -10%;
  width: 50%;
  height: 120%;
  background: radial-gradient(ellipse, rgba(0, 212, 170, 0.12) 0%, transparent 70%);
}

.product-page .hero-section .container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-2xl);
  align-items: center;
  position: relative;
  z-index: 1;
}

.product-page .hero-content h1 {
  font-size: 3rem;
  font-weight: 700;
  color: white;
  line-height: 1.2;
  margin-bottom: var(--space-md);
}

.product-page .hero-content h1 span {
  background: var(--gradient-accent);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.product-page .hero-content h2 {
  font-size: 1.25rem;
  font-weight: 500;
  color: var(--accent);
  margin-bottom: var(--space-sm);
}

.product-page .hero-content > p {
  font-size: 1rem;
  color: rgba(255, 255, 255, 0.7);
  margin-bottom: var(--space-lg);
}

.product-page .hero-cta {
  display: flex;
  justify-content: flex-start;
  gap: var(--space-md);
}

.product-page .hero-image {
  position: relative;
}

.product-page .hero-image img {
  width: 100%;
  max-width: 480px;
  border-radius: var(--radius-lg);
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.4);
  border: 1px solid rgba(0, 212, 170, 0.3);
}

/* 产品介绍 */
.product-page .product-section {
  padding: 60px 0;
  background: white;
}

.product-page .product-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}

.product-page .product-image {
  position: relative;
}

.product-page .product-image img {
  width: 100%;
  border-radius: var(--radius-lg);
  box-shadow: 0 15px 40px rgba(0, 0, 0, 0.15);
}

.product-page .product-badge {
  position: absolute;
  bottom: 20px;
  left: -20px;
  background: var(--gradient-accent);
  padding: 12px 20px;
  border-radius: var(--radius-md);
  display: flex;
  flex-direction: column;
}

.product-page .product-badge span {
  font-size: 0.9375rem;
  font-weight: 600;
  color: var(--tech-blue);
}

.product-page .product-badge small {
  font-size: 0.75rem;
  color: var(--tech-blue);
  opacity: 0.8;
}

.product-page .product-info h3 {
  font-size: 1.75rem;
  margin-bottom: var(--space-md);
  color: var(--text-dark);
}

.product-page .product-desc {
  font-size: 1rem;
  color: var(--text-gray);
  line-height: 1.8;
  margin-bottom: var(--space-lg);
}

.product-page .product-specs {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 15px;
}

.product-page .spec-item {
  text-align: center;
  padding: 15px 10px;
  background: var(--bg-light);
  border-radius: var(--radius-md);
}

.product-page .spec-value {
  display: block;
  font-size: 1.375rem;
  font-weight: 700;
  color: var(--accent);
}

.product-page .spec-label {
  display: block;
  font-size: 0.8125rem;
  color: var(--text-gray);
  margin-top: 4px;
}

/* 产品细节 - 三列网格布局 */
.product-page .features-showcase-section {
  padding: 60px 0;
  background: white;
}

.product-page .product-details-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 30px;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

.product-page .product-detail-card {
  border-radius: 16px;
  overflow: hidden;
  box-shadow: 0 8px 30px rgba(0,0,0,0.08);
  background: white;
  display: flex;
  flex-direction: column;
  transition: all 0.3s ease;
}

.product-page .product-detail-card:hover {
  transform: translateY(-8px);
  box-shadow: 0 16px 40px rgba(0,102,255,0.12);
}

.product-page .product-detail-card .clickable-img {
  width: 100%;
  height: 280px;
  object-fit: cover;
  cursor: pointer;
  transition: transform 0.3s ease;
}

.product-page .product-detail-card .clickable-img:hover {
  transform: scale(1.03);
}

.product-page .product-detail-card .detail-info {
  padding: 24px;
  background: linear-gradient(180deg, white 0%, #f8fafc 100%);
}

.product-page .product-detail-card .detail-info h4 {
  margin: 0 0 12px;
  font-size: 1.25rem;
  color: var(--text-dark);
  font-weight: 600;
}

.product-page .product-detail-card .detail-info p {
  margin: 0;
  color: var(--text-gray);
  font-size: 0.9375rem;
  line-height: 1.7;
}

/* 核心功能 */
.product-page .features-detail-section {
  padding: 60px 0;
  background: var(--bg-light);
  position: relative;
}

.product-page .features-detail-section::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(0, 212, 170, 0.5), transparent);
}

.product-page .features-detail-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: var(--space-md);
}

.product-page .feature-detail-card {
  background: white;
  padding: var(--space-lg);
  border-radius: var(--radius-lg);
  text-align: center;
  transition: all 0.3s ease;
  border: 1px solid var(--border);
}

.product-page .feature-detail-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 24px rgba(0, 102, 255, 0.12);
  border-color: rgba(0, 212, 170, 0.3);
}

.product-page .feature-detail-card .feature-icon {
  font-size: 2rem;
  margin-bottom: var(--space-sm);
}

.product-page .feature-detail-card h4 {
  font-size: 0.9375rem;
  margin-bottom: var(--space-xs);
  color: var(--text-dark);
}

.product-page .feature-detail-card p {
  font-size: 0.8125rem;
  color: var(--text-gray);
  line-height: 1.5;
}

/* 技术参数 */
.product-page .tech-section {
  padding: 60px 0;
  background: linear-gradient(180deg, white 0%, #f8fafc 100%);
}

.product-page .section-subtitle {
  text-align: center;
  color: var(--text-gray);
  font-size: 1rem;
  margin-top: -20px;
  margin-bottom: 40px;
}

.product-page .tech-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  max-width: 900px;
  margin: 0 auto;
}

.product-page .tech-card {
  background: white;
  border-radius: 16px;
  padding: 24px 20px;
  display: flex;
  align-items: center;
  gap: 16px;
  border: 1px solid var(--border);
  transition: all 0.3s ease;
  box-shadow: 0 4px 15px rgba(0,0,0,0.04);
}

.product-page .tech-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 25px rgba(0, 102, 255, 0.1);
  border-color: rgba(0, 212, 170, 0.3);
}

.product-page .tech-card.highlight {
  background: linear-gradient(135deg, var(--tech-blue) 0%, #0066ff 100%);
  border-color: transparent;
}

.product-page .tech-card.highlight .tech-value,
.product-page .tech-card.highlight .tech-label {
  color: white;
}

.product-page .tech-card.highlight .tech-icon {
  background: rgba(255,255,255,0.2);
}

.product-page .tech-icon {
  width: 50px;
  height: 50px;
  background: var(--bg-light);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  flex-shrink: 0;
}

.product-page .tech-content {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.product-page .tech-value {
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--text-dark);
  white-space: nowrap;
}

.product-page .tech-label {
  font-size: 0.8125rem;
  color: var(--text-gray);
}

/* 技术参数可视化区域 */
.product-page .tech-visual {
  max-width: 600px;
  margin: 0 auto;
  position: relative;
}

.product-page .tech-robot-3d {
  background: linear-gradient(135deg, #f0f7ff 0%, #e8f4ff 100%);
  border-radius: 20px;
  padding: 30px;
  text-align: center;
  position: relative;
  border: 1px solid rgba(0, 102, 255, 0.1);
}

.product-page .tech-robot-3d img {
  max-width: 100%;
  border-radius: 12px;
  box-shadow: 0 10px 30px rgba(0,0,0,0.1);
  cursor: pointer;
  transition: transform 0.3s ease;
}

.product-page .tech-robot-3d img:hover {
  transform: scale(1.02);
}

.product-page .tech-robot-label {
  display: flex;
  justify-content: center;
  gap: 30px;
  margin-top: 20px;
  flex-wrap: wrap;
}

.product-page .tech-robot-label .label-line {
  background: white;
  padding: 8px 16px;
  border-radius: 8px;
  font-size: 0.875rem;
  color: var(--text-gray);
  box-shadow: 0 2px 8px rgba(0,0,0,0.06);
}

.product-page .tech-robot-label .label-line strong {
  color: var(--accent);
  font-weight: 600;
}

/* 应用场景 */
.product-page .scenes-section {
  padding: 60px 0;
  background: var(--bg-light);
}

.product-page .scenes-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 30px;
}

.product-page .scene-card {
  background: white;
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: all 0.3s ease;
  border: 1px solid var(--border);
  display: flex;
  flex-direction: column;
}

.product-page .scene-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 24px rgba(0, 102, 255, 0.1);
  border-color: rgba(0, 212, 170, 0.3);
}

.product-page .scene-card img {
  width: 100%;
  aspect-ratio: 1 / 1;
  height: auto;
  object-fit: cover;
  cursor: pointer;
}

.product-page .scene-card .scene-info {
  padding: 24px;
}

.product-page .scene-card h4 {
  font-size: 1.25rem;
  margin-bottom: 12px;
  color: var(--text-dark);
}

.product-page .scene-card p {
  font-size: 0.9375rem;
  color: var(--text-gray);
  line-height: 1.7;
  margin: 0;
}

/* 图片放大弹窗 */
.product-page .lightbox {
  display: none;
  position: fixed;
  z-index: 9999;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.9);
  justify-content: center;
  align-items: center;
  flex-direction: column;
}

.product-page .lightbox-img {
  max-width: 85%;
  max-height: 80vh;
  border-radius: 8px;
  object-fit: contain;
}

.product-page .lightbox-caption {
  color: white;
  margin-top: 15px;
  font-size: 1rem;
  text-align: center;
}

.product-page .lightbox-close {
  position: absolute;
  top: 20px;
  right: 30px;
  font-size: 40px;
  color: white;
  cursor: pointer;
  z-index: 10000;
}

.product-page .lightbox-close:hover {
  color: var(--accent);
}

/* ===================================
   响应式 - 平板端 (1024px以下)
   =================================== */
@media (max-width: 1024px) {
  .product-page .hero-content h1 {
    font-size: 2.5rem;
  }

  .product-page .product-grid {
    gap: 40px;
  }

  .product-page .features-detail-grid {
    grid-template-columns: repeat(3, 1fr);
  }

  .product-page .scenes-grid {
    grid-template-columns: 1fr;
    gap: 20px;
  }
}

/* ===================================
   响应式 - 移动端 (768px以下)
   =================================== */
@media (max-width: 768px) {
  .product-page .hero-section {
    padding: 90px 0 40px;
    min-height: auto;
  }

  .product-page .hero-section .container {
    grid-template-columns: 1fr;
    text-align: center;
  }

  .product-page .hero-content h1 {
    font-size: 1.75rem;
  }

  .product-page .hero-content h2 {
    font-size: 1rem;
  }

  .product-page .hero-content > p {
    font-size: 0.875rem;
  }

  .product-page .hero-cta {
    flex-direction: column;
    align-items: center;
    gap: 12px;
  }

  .product-page .hero-cta .btn {
    width: 100%;
    max-width: 280px;
  }

  .product-page .hero-image {
    order: -1;
  }

  .product-page .hero-image img {
    max-width: 300px;
    margin: 0 auto;
  }

  /* 产品介绍 */
  .product-page .product-section {
    padding: 40px 0;
  }

  .product-page .product-grid {
    grid-template-columns: 1fr;
    gap: 30px;
  }

  .product-page .product-image {
    order: -1;
  }

  .product-page .product-badge {
    left: 10px;
    bottom: 10px;
  }

  .product-page .product-info h3 {
    font-size: 1.5rem;
    text-align: center;
  }

  .product-page .product-desc {
    font-size: 0.9375rem;
    text-align: center;
  }

  .product-page .product-specs {
    grid-template-columns: repeat(2, 1fr);
    gap: 10px;
  }

  .product-page .spec-item {
    padding: 12px 8px;
  }

  .product-page .spec-value {
    font-size: 1.25rem;
  }

  /* 产品细节 - 移动端 */
  .product-page .features-showcase-section {
    padding: 40px 0;
  }

  .product-page .product-details-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 12px;
    padding: 0 12px;
  }

  .product-page .product-detail-card {
    flex-direction: column;
  }

  .product-page .product-detail-card:hover {
    transform: translateY(-4px);
  }

  .product-page .product-detail-card .clickable-img {
    width: 100%;
    height: 120px;
    object-fit: cover;
  }

  .product-page .product-detail-card .detail-info {
    width: 100%;
    padding: 12px 10px;
  }

  .product-page .product-detail-card .detail-info h4 {
    font-size: 0.8125rem;
    margin-bottom: 4px;
    font-weight: 600;
  }

  .product-page .product-detail-card .detail-info p {
    font-size: 0.6875rem;
    line-height: 1.4;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
  }

  /* 核心功能 */
  .product-page .features-detail-section {
    padding: 40px 0;
  }

  .product-page .features-detail-grid {
    grid-template-columns: 1fr;
    gap: 12px;
  }

  .product-page .feature-detail-card {
    padding: 15px;
  }

  /* 技术参数 */
  .product-page .tech-section {
    padding: 40px 0;
  }

  .product-page .tech-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
    padding: 0 15px;
    max-width: 100%;
  }

  .product-page .tech-card {
    padding: 16px 12px;
    gap: 12px;
  }

  .product-page .tech-icon {
    width: 40px;
    height: 40px;
    font-size: 1.25rem;
  }

  .product-page .tech-value {
    font-size: 0.9375rem;
  }

  .product-page .tech-label {
    font-size: 0.75rem;
  }

  .product-page .tech-visual {
    padding: 0 15px;
  }

  .product-page .tech-robot-3d {
    padding: 20px;
  }

  .product-page .tech-robot-label {
    gap: 10px;
  }

  .product-page .tech-robot-label .label-line {
    padding: 6px 12px;
    font-size: 0.75rem;
  }

  /* 应用场景 */
  .product-page .scenes-section {
    padding: 40px 0;
  }

  .product-page .scenes-grid {
    grid-template-columns: 1fr;
    gap: 15px;
    padding: 0 15px;
  }

  .product-page .scene-card img {
    width: 100%;
    aspect-ratio: 1 / 1;
    height: auto;
    object-fit: cover;
  }

  .product-page .scene-card .scene-info {
    padding: 16px 15px;
  }

  .product-page .scene-card h4 {
    font-size: 1rem;
    margin-bottom: 8px;
  }

  .product-page .scene-card p {
    font-size: 0.8125rem;
    line-height: 1.5;
  }
}