/* ========================================
   首页样式
   ======================================== */

/* Hero 轮播图 */
.hero-slider {
  position: relative;
  height: 600px;
  overflow: hidden;
}

.hero-slide {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  opacity: 0;
  transition: opacity 0.8s ease;
  display: flex;
  align-items: center;
}

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

.hero-slide-bg {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-size: cover;
  background-position: center;
  transform: scale(1.05);
  transition: transform 8s ease-out;
}

.hero-slide.active .hero-slide-bg {
  transform: scale(1);
}

.hero-slide-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(135deg, rgba(13, 43, 92, 0.85) 0%, rgba(13, 43, 92, 0.4) 100%);
}

.hero-slide-content {
  position: relative;
  z-index: 2;
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 20px;
  width: 100%;
}

.hero-slide-content h2 {
  font-size: 48px;
  font-weight: 700;
  color: #fff;
  margin-bottom: 16px;
  line-height: 1.2;
}

.hero-slide-content p {
  font-size: 18px;
  color: rgba(255, 255, 255, 0.85);
  margin-bottom: 30px;
  max-width: 600px;
  line-height: 1.7;
}

.hero-slider-btn {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 50px;
  height: 50px;
  background: rgba(255, 255, 255, 0.15);
  border: 1px solid rgba(255, 255, 255, 0.3);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  cursor: pointer;
  transition: all var(--transition-base);
  z-index: 5;
  backdrop-filter: blur(4px);
}

.hero-slider-btn:hover {
  background: rgba(255, 255, 255, 0.3);
  border-color: rgba(255, 255, 255, 0.5);
}

.hero-slider-btn svg {
  width: 20px;
  height: 20px;
}

.slider-prev { left: 30px; }
.slider-next { right: 30px; }

.hero-slider-dots {
  position: absolute;
  bottom: 30px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  gap: 10px;
  z-index: 5;
}

.slider-dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.4);
  cursor: pointer;
  transition: all var(--transition-base);
  border: none;
}

.slider-dot.active {
  background: var(--accent);
  width: 30px;
  border-radius: 6px;
}

/* 软件与服务板块 */
.software-section {
  background: var(--bg-secondary);
}

.software-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 30px;
}

.software-card {
  background: var(--bg-primary);
  border-radius: var(--radius-lg);
  padding: 40px 30px;
  text-align: center;
  box-shadow: var(--shadow-card);
  transition: all var(--transition-base);
  position: relative;
  overflow: hidden;
}

.software-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 4px;
  background: var(--accent-gradient);
  transform: scaleX(0);
  transition: transform var(--transition-base);
}

.software-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-card-hover);
}

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

.software-card-icon {
  width: 72px;
  height: 72px;
  border-radius: var(--radius-lg);
  background: var(--bg-tertiary);
  margin: 0 auto 24px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 32px;
}

.software-card h3 {
  font-size: var(--font-size-xl);
  color: var(--primary);
  margin-bottom: 12px;
}

.software-card p {
  font-size: var(--font-size-sm);
  color: var(--text-secondary);
  line-height: 1.8;
  margin-bottom: 20px;
}

/* 硬件产品板块 */
.products-section {
  background: var(--bg-primary);
}

.product-categories {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  margin-bottom: 50px;
}

.product-category-card {
  background: var(--bg-secondary);
  border-radius: var(--radius-lg);
  padding: 30px 20px;
  text-align: center;
  transition: all var(--transition-base);
  cursor: pointer;
  border: 2px solid transparent;
}

.product-category-card:hover {
  border-color: var(--primary-light);
  background: var(--bg-primary);
  box-shadow: var(--shadow-card);
}

.product-category-icon {
  width: 64px;
  height: 64px;
  border-radius: 50%;
  background: var(--primary-gradient);
  margin: 0 auto 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 28px;
}

.product-category-card h3 {
  font-size: var(--font-size-base);
  color: var(--primary);
  margin-bottom: 8px;
}

.product-category-card p {
  font-size: var(--font-size-xs);
  color: var(--text-light);
}

/* 产品特性展示 */
.product-features {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 30px;
}

.product-feature-item {
  display: flex;
  gap: 20px;
  padding: 24px;
  background: var(--bg-secondary);
  border-radius: var(--radius-md);
  transition: all var(--transition-base);
}

.product-feature-item:hover {
  background: var(--bg-primary);
  box-shadow: var(--shadow-card);
}

.product-feature-icon {
  flex-shrink: 0;
  width: 56px;
  height: 56px;
  border-radius: var(--radius-md);
  background: var(--accent-gradient);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 24px;
}

.product-feature-item h4 {
  font-size: var(--font-size-lg);
  color: var(--primary);
  margin-bottom: 8px;
}

.product-feature-item p {
  font-size: var(--font-size-sm);
  color: var(--text-secondary);
  line-height: 1.7;
}

/* 解决方案板块 */
.solutions-section {
  background: var(--bg-secondary);
}

.solution-tabs {
  display: flex;
  justify-content: center;
  gap: 8px;
  margin-bottom: 40px;
  flex-wrap: wrap;
}

.solution-tab {
  padding: 10px 24px;
  border-radius: var(--radius-full);
  font-size: var(--font-size-sm);
  color: var(--text-secondary);
  background: var(--bg-primary);
  border: 1px solid var(--border-color);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.solution-tab:hover,
.solution-tab.active {
  background: var(--primary);
  color: #fff;
  border-color: var(--primary);
}

.solution-panel {
  display: none;
}

.solution-panel.active {
  display: block;
  animation: fadeIn 0.4s ease;
}

.solution-content {
  display: flex;
  gap: 50px;
  align-items: center;
}

.solution-image {
  flex-shrink: 0;
  width: 480px;
  height: 320px;
  border-radius: var(--radius-lg);
  background: var(--primary-gradient);
  display: flex;
  align-items: center;
  justify-content: center;
  color: rgba(255, 255, 255, 0.3);
  font-size: 60px;
  overflow: hidden;
}

.solution-text h3 {
  font-size: var(--font-size-2xl);
  color: var(--primary);
  margin-bottom: 16px;
}

.solution-text p {
  font-size: var(--font-size-base);
  color: var(--text-secondary);
  line-height: 1.8;
  margin-bottom: 24px;
}

.solution-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 24px;
}

/* 数据统计 */
.stats-section {
  background: var(--primary-gradient);
  padding: 60px 0;
  color: #fff;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 40px;
  text-align: center;
}

.stat-item {
  padding: 20px;
}

.stat-number {
  font-size: var(--font-size-4xl);
  font-weight: 700;
  color: var(--accent);
  margin-bottom: 8px;
  line-height: 1;
}

.stat-label {
  font-size: var(--font-size-base);
  opacity: 0.8;
}

/* 公司简介板块 */
.about-preview {
  display: flex;
  gap: 60px;
  align-items: center;
}

.about-preview-image {
  flex-shrink: 0;
  width: 500px;
  height: 340px;
  border-radius: var(--radius-lg);
  background: var(--primary-gradient);
  display: flex;
  align-items: center;
  justify-content: center;
  color: rgba(255, 255, 255, 0.2);
  font-size: 80px;
  overflow: hidden;
}

.about-preview-text h3 {
  font-size: var(--font-size-2xl);
  color: var(--primary);
  margin-bottom: 20px;
  line-height: 1.3;
}

.about-preview-text p {
  font-size: var(--font-size-base);
  color: var(--text-secondary);
  line-height: 1.9;
  margin-bottom: 16px;
}

.about-features {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  margin-top: 24px;
}

.about-feature-item {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: var(--font-size-sm);
  color: var(--text-secondary);
}

.about-feature-item svg {
  width: 20px;
  height: 20px;
  color: var(--accent);
  flex-shrink: 0;
}

/* 新闻中心 */
.news-section {
  background: var(--bg-secondary);
}

.news-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 30px;
}

.news-card {
  background: var(--bg-primary);
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-card);
  transition: all var(--transition-base);
}

.news-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-card-hover);
}

.news-card-image {
  width: 100%;
  height: 200px;
  background: var(--primary-gradient);
  display: flex;
  align-items: center;
  justify-content: center;
  color: rgba(255, 255, 255, 0.2);
  font-size: 40px;
  overflow: hidden;
}

.news-card-body {
  padding: 20px;
}

.news-card-meta {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 10px;
  font-size: var(--font-size-xs);
  color: var(--text-light);
}

.news-card-meta .tag {
  background: var(--accent);
  color: #fff;
}

.news-card h3 {
  font-size: var(--font-size-base);
  color: var(--text-primary);
  margin-bottom: 10px;
  line-height: 1.5;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.news-card p {
  font-size: var(--font-size-sm);
  color: var(--text-light);
  line-height: 1.7;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.news-card-footer {
  padding: 0 20px 16px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.news-card-date {
  font-size: var(--font-size-xs);
  color: var(--text-light);
}

.news-card-more {
  font-size: var(--font-size-xs);
  color: var(--accent);
  display: flex;
  align-items: center;
  gap: 4px;
  transition: gap var(--transition-fast);
}

.news-card-more:hover {
  gap: 8px;
}

/* 合作伙伴 */
.partners-section {
  background: var(--bg-primary);
}

.partners-grid {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 24px;
}

.partner-logo {
  height: 80px;
  border-radius: var(--radius-md);
  background: var(--bg-secondary);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-base);
  border: 1px solid var(--border-light);
}

.partner-logo:hover {
  box-shadow: var(--shadow-md);
  transform: scale(1.05);
}

.partner-logo span {
  font-size: var(--font-size-sm);
  color: var(--text-light);
  font-weight: 500;
}

/* ========================================
   响应式
   ======================================== */
@media (max-width: 1200px) {
  .solution-content {
    gap: 30px;
  }

  .solution-image {
    width: 400px;
    height: 280px;
  }
}

@media (max-width: 992px) {
  .hero-slider {
    height: 480px;
  }

  .hero-slide-content h2 {
    font-size: 36px;
  }

  .hero-slide-content p {
    font-size: 16px;
  }

  .software-grid {
    grid-template-columns: 1fr;
    gap: 20px;
  }

  .product-categories {
    grid-template-columns: repeat(2, 1fr);
  }

  .product-features {
    grid-template-columns: 1fr;
  }

  .solution-content {
    flex-direction: column;
  }

  .solution-image {
    width: 100%;
    height: 240px;
  }

  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
  }

  .about-preview {
    flex-direction: column;
    gap: 30px;
  }

  .about-preview-image {
    width: 100%;
    height: 260px;
  }

  .news-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .partners-grid {
    grid-template-columns: repeat(4, 1fr);
  }
}

@media (max-width: 768px) {
  .hero-slider {
    height: 400px;
  }

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

  .hero-slider-btn {
    display: none;
  }

  .product-categories {
    grid-template-columns: 1fr 1fr;
    gap: 16px;
  }

  .about-features {
    grid-template-columns: 1fr;
  }

  .news-grid {
    grid-template-columns: 1fr;
  }

  .partners-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
  }
}

@media (max-width: 576px) {
  .hero-slider {
    height: 350px;
  }

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

  .hero-slide-content p {
    font-size: 14px;
    margin-bottom: 20px;
  }

  .product-categories {
    grid-template-columns: 1fr;
  }

  .partners-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .stat-number {
    font-size: var(--font-size-3xl);
  }
}