/* ============================================
   Homepage Styles
   ============================================ */


/* ============================================
   核心能力 (Core Capability)
   ============================================ */
.section-capability {
  background-color: var(--color-white, #ffffff);
  padding-top: 32px;
  padding-bottom: 32px;
}

.capability-card {
  text-align: left;
  padding: var(--space-xl, 48px) var(--space-lg, 24px);
  border: 1px solid var(--color-border, #e0e0e0);
  position: relative;
  overflow: hidden;
}

.capability-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 3px;
  background: linear-gradient(90deg, var(--color-primary, #1a73e8), var(--color-accent, #00b4d8));
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--transition-normal, 0.3s ease);
}

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

.capability-icon {
  width: 64px;
  height: 64px;
  margin: 0 0 var(--space-lg, 24px);
  display: flex;
  align-items: center;
  justify-content: flex-start;
  color: var(--color-primary, #1a73e8);
  transition: all var(--transition-normal, 0.3s ease);
}

.capability-card:hover .capability-icon {
  transform: translateY(-4px);
}

.capability-icon svg {
  width: 56px;
  height: 56px;
}

.capability-title {
  font-size: var(--font-size-xl, 22px);
  font-weight: 700;
  color: var(--color-primary, #1a73e8);
  margin-bottom: var(--space-md, 16px);
}

.capability-desc {
  font-size: var(--font-size-sm, 14px);
  color: var(--color-text-muted, #666666);
  line-height: 1.6;
  margin: 0;
}

.capability-desc .line-item {
  display: block;
  position: relative;
  padding-left: 18px;
  margin-bottom: var(--space-sm, 8px);
}

.capability-desc .line-item::before {
  content: '';
  position: absolute;
  left: 0;
  top: 8px;
  width: 6px;
  height: 6px;
  border-radius: 2px;
  background: var(--color-primary, #1a73e8);
}

.capability-desc .line-item:last-child {
  margin-bottom: 0;
}


/* ============================================
   关于我们简介 (About Preview)
   ============================================ */
.section-about {
  background-color: var(--color-bg-light, #f5f7fa);
  position: relative;
  overflow: hidden;
  padding-top: 32px;
  padding-bottom: 32px;
}

.section-about::before {
  content: '';
  position: absolute;
  top: -120px;
  right: -120px;
  width: 360px;
  height: 360px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(26, 115, 232, 0.08) 0%, transparent 70%);
  pointer-events: none;
}

.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-xxl, 80px);
  align-items: center;
  position: relative;
}

.about-image {
  position: relative;
  border-radius: var(--border-radius-lg, 16px);
  overflow: hidden;
}

.about-image-img {
  width: 100%;
  height: auto;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  display: block;
  border-radius: var(--border-radius-lg, 16px);
}

.about-image-img[src=""] {
  display: none;
}

.about-eyebrow {
  display: inline-block;
  font-size: var(--font-size-sm, 14px);
  font-weight: 600;
  color: var(--color-primary, #1a73e8);
  letter-spacing: 4px;
  text-transform: uppercase;
  margin-bottom: var(--space-md, 16px);
}

.about-heading {
  font-size: var(--font-size-3xl, 32px);
  font-weight: 700;
  color: var(--color-dark, #1a1a2e);
  line-height: 1.3;
  margin-bottom: var(--space-lg, 24px);
}

.about-desc {
  font-size: var(--font-size-base, 16px);
  color: var(--color-text-muted, #666666);
  line-height: 1.8;
  margin-bottom: var(--space-xl, 48px);
}

.about-desc p {
  margin-bottom: var(--space-md, 16px);
}

.about-desc p:last-child {
  margin-bottom: 0;
}

.about-cta {
  padding: 14px var(--space-xl, 48px);
}


/* ============================================
   Products Tabbed Showcase (Homepage)
   ============================================ */
.product-showcase {
  border: 1px solid var(--color-border, #e0e0e0);
  border-radius: var(--border-radius-lg, 16px);
  overflow: hidden;
  background: var(--color-white, #ffffff);
}

.product-tabs {
  display: flex;
  border-bottom: 1px solid var(--color-border, #e0e0e0);
  overflow-x: auto;
  scrollbar-width: none;
}

.product-tabs::-webkit-scrollbar {
  display: none;
}

.product-tab {
  flex: 1;
  min-width: 160px;
  padding: 18px 24px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  font-size: var(--font-size-sm, 14px);
  font-weight: 500;
  color: var(--color-text-muted, #666666);
  background: var(--color-bg-light, #f5f7fa);
  border: none;
  border-right: 1px solid var(--color-border, #e0e0e0);
  cursor: pointer;
  transition: all 0.25s ease;
  white-space: nowrap;
}

.product-tab:last-child {
  border-right: none;
}

.product-tab:hover {
  color: var(--color-primary, #1a73e8);
  background: var(--color-white, #ffffff);
}

.product-tab.active {
  color: var(--color-primary, #1a73e8);
  background: var(--color-white, #ffffff);
  font-weight: 600;
  box-shadow: inset 0 0 0 2px var(--color-primary, #1a73e8);
}

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

.product-showcase-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0;
  min-height: 360px;
}

.product-showcase-image {
  padding: var(--space-xl, 48px);
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-bg-light, #f5f7fa);
}

.product-showcase-image img {
  width: 100%;
  max-width: 100%;
  height: 320px;
  max-height: 320px;
  object-fit: contain;
  border-radius: var(--border-radius-md, 8px);
}

.product-showcase-info {
  padding: var(--space-xl, 48px);
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.product-showcase-name {
  font-size: var(--font-size-2xl, 24px);
  font-weight: 700;
  color: var(--color-dark, #1a1a2e);
  margin-bottom: var(--space-md, 16px);
}

.product-showcase-desc {
  font-size: var(--font-size-base, 16px);
  color: var(--color-text-muted, #666666);
  line-height: 1.8;
  margin-bottom: var(--space-xl, 48px);
}

.product-showcase-actions {
  display: flex;
  gap: var(--space-md, 16px);
  flex-wrap: wrap;
}

.product-showcase-actions .btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 24px;
  font-size: var(--font-size-sm, 14px);
  border-radius: var(--border-radius-md, 8px);
  border: 1px solid var(--color-border, #e0e0e0);
  background: var(--color-white, #ffffff);
  color: var(--color-dark, #1a1a2e);
  text-decoration: none;
  transition: all 0.25s ease;
}

.product-showcase-actions .btn:hover {
  border-color: var(--color-primary, #1a73e8);
  color: var(--color-primary, #1a73e8);
}

@media (max-width: 768px) {
  .product-tabs {
    overflow-x: auto;
  }

  .product-tab {
    min-width: 120px;
    padding: 14px 16px;
    font-size: 13px;
  }

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

  .product-showcase-image {
    padding: var(--space-lg, 24px);
  }

  .product-showcase-info {
    padding: var(--space-lg, 24px);
  }

  .product-showcase-name {
    font-size: var(--font-size-xl, 20px);
  }
}

.home-news-grid {
  align-items: stretch;
}

.home-products-grid .card,
.home-news-grid .card {
  height: 100%;
}

.home-news-grid .card-body {
  padding: var(--space-md, 16px);
}

.home-news-grid .card-date {
  font-size: var(--font-size-xs, 12px);
  margin-bottom: var(--space-xs, 4px);
}

.home-news-grid .card-title {
  font-size: var(--font-size-base, 16px);
  line-height: 1.4;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.home-news-grid .card-text {
  font-size: var(--font-size-xs, 12px);
  line-height: 1.6;
  margin-bottom: var(--space-sm, 8px);
  flex-grow: 0;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.home-news-grid .card-link {
  margin-top: auto;
  font-size: var(--font-size-xs, 12px);
}

.section-products {
  padding-bottom: var(--space-lg, 24px);
}

.section-cta {
  text-align: center;
  margin-top: var(--space-lg, 24px);
}

.empty-state {
  grid-column: 1 / -1;
  text-align: center;
  padding: var(--space-xxl, 80px) var(--space-lg, 24px);
  color: var(--color-text-muted, #666666);
  font-size: var(--font-size-base, 16px);
  background-color: var(--color-bg-light, #f5f7fa);
  border: 1px dashed var(--color-border, #e0e0e0);
  border-radius: var(--border-radius-md, 8px);
}

.empty-state-icon {
  font-size: 48px;
  margin-bottom: var(--space-md, 16px);
  display: block;
  opacity: 0.4;
}


/* ============================================
   Partners Grid
   ============================================ */
.home-partners-grid {
  gap: var(--space-md, 16px);
}

.partner-logo-tile {
  flex-direction: column;
  gap: var(--space-xs, 4px);
}

.partner-logo-img {
  display: block;
  max-height: 36px;
  max-width: 80%;
  object-fit: contain;
  filter: grayscale(100%);
  opacity: 0.7;
}

.partner-name-fallback {
  color: var(--color-text-muted, #666666);
  font-weight: 700;
  font-size: var(--font-size-base, 16px);
  letter-spacing: 1px;
  text-align: center;
  line-height: 1.2;
}


/* ============================================
   Responsive
   ============================================ */
@media (max-width: 992px) {
  .hero {
    height: 560px;
  }
  .hero-title {
    font-size: var(--font-size-4xl, 40px);
  }
  .about-grid {
    gap: var(--space-xl, 48px);
  }
  .about-heading {
    font-size: var(--font-size-2xl, 24px);
  }
  .home-partners-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (max-width: 768px) {
  .about-grid {
    grid-template-columns: 1fr;
    gap: var(--space-xl, 48px);
  }
  .about-image {
    max-width: 480px;
    margin: 0 auto;
  }
  .home-partners-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}