/* Applications Page - 语义化样式 */

/* 页面容器 */
.applications-page {
  background-color: white;
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

.applications-page main {
  flex: 1;
  display: flex;
  flex-direction: column;
}

/* 面包屑导航 */
.breadcrumb-section {
  background-color: white;
  border-bottom: 1px solid #e5e7eb;
}

.breadcrumb-container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 1rem 1rem;
}
.applications-container img {
  max-width: 100% !important;
}

@media (min-width: 640px) {
  .breadcrumb-container {
    padding-left: 1.5rem;
    padding-right: 1.5rem;
  }
}

@media (min-width: 1024px) {
  .breadcrumb-container {
    padding-left: 2rem;
    padding-right: 2rem;
  }
}

.breadcrumb-nav {
  display: flex;
  font-size: 0.875rem;
  color: #6b7280;
}

.breadcrumb-link {
  color: #6b7280;
  transition: color 0.2s;
}

.breadcrumb-link:hover {
  color: #1d4ed8;
}

.breadcrumb-separator {
  margin-left: 0.5rem;
  margin-right: 0.5rem;
}

.breadcrumb-current {
  color: #111827;
}

/* 应用领域区域 */
.applications-section {
  padding-top: 3rem;
  padding-bottom: 3rem;
  background-color: #f9fafb;
  flex: 1;
}

.applications-container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 1rem;
}

@media (min-width: 640px) {
  .applications-container {
    padding-left: 1.5rem;
    padding-right: 1.5rem;
  }
}

@media (min-width: 1024px) {
  .applications-container {
    padding-left: 2rem;
    padding-right: 2rem;
  }
}

/* 应用领域网格布局 */
.applications-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
}

@media (min-width: 640px) {
  .applications-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .applications-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (min-width: 1280px) {
  .applications-grid {
    grid-template-columns: repeat(4, 1fr);
  }
}

/* 应用领域卡片容器 */
.application-card-wrapper {
  position: relative;
}

/* 应用领域卡片 */
.application-card {
  background-color: white;
  border-radius: 0.5rem;
  box-shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.1), 0 1px 2px 0 rgba(0, 0, 0, 0.06);
  overflow: hidden;
  cursor: pointer;
  transition: all 0.3s ease;
  display: flex;
  flex-direction: column;
  text-decoration: none;
  color: inherit;
}

.application-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
}

.application-card-image-wrapper {
  width: 100%;
  height: 180px;
  overflow: hidden;
  background-color: #f3f4f6;
  display: flex;
  align-items: center;
  justify-content: center;
}

.application-card-image {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.3s ease;
}

.application-card:hover .application-card-image {
  transform: scale(1.05);
}

.application-card-placeholder {
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #9ca3af;
  font-size: 3rem;
}

.application-card-info {
  padding: 1rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
}

.application-card-title {
  font-size: 0.875rem;
  font-weight: 500;
  color: #374151;
  flex: 1;
  transition: color 0.2s;
}

.application-card:hover .application-card-title {
  color: #1d4ed8;
}

.application-card-arrow {
  font-size: 1rem;
  color: #6b7280;
  font-weight: 500;
  transition: color 0.2s, transform 0.2s;
}

.application-card:hover .application-card-arrow {
  color: #1d4ed8;
  transform: translateX(4px);
}

/* 应用领域悬停弹窗（参考产品中心mega menu） */
.application-popup {
  display: none;
  position: absolute;
  top: 100%;
  left: 0;
  z-index: 100;
  margin-top: 0.5rem;
  min-width: 400px;
  max-width: 600px;
  animation: popupFadeIn 0.2s ease;
}

/* 右侧卡片弹窗自动右对齐 */
.application-card-wrapper:nth-child(3n) .application-popup,
.application-card-wrapper:nth-child(4n) .application-popup {
  left: auto;
  right: 0;
}

.application-popup.hidden {
  display: none;
}

@keyframes popupFadeIn {
  from {
    opacity: 0;
    transform: translateY(-10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.application-popup-content {
  background-color: white;
  border: 1px solid #f3f4f6;
  border-radius: 0.5rem;
  box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
  padding: 1.5rem;
  max-height: 500px;
  overflow-y: auto;
}

.application-popup-title {
  font-size: 1.25rem;
  font-weight: 700;
  color: #111827;
  margin-bottom: 1rem;
}

.application-popup-image-wrapper {
  margin-bottom: 1rem;
  border-radius: 0.5rem;
  overflow: hidden;
}

.application-popup-image {
  width: 100%;
  height: auto;
  max-height: 250px;
  object-fit: cover;
  display: block;
}

.application-popup-text {
  color: #374151;
  line-height: 1.75;
  font-size: 0.875rem;
}

.application-popup-text img {
  max-width: 100%;
  height: auto;
}

/* 响应式设计 */
@media (max-width: 768px) {
  .applications-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 1rem;
  }

  .application-card-image-wrapper {
    height: 120px;
  }

  .application-card-info {
    padding: 0.75rem;
  }

  .application-card-title {
    font-size: 0.75rem;
  }

  .application-popup {
    min-width: 300px;
    max-width: calc(100vw - 2rem);
    left: 50%;
    transform: translateX(-50%);
  }

  .application-popup-content {
    padding: 1rem;
    max-height: 400px;
  }

  .application-popup-title {
    font-size: 1rem;
    margin-bottom: 0.75rem;
  }

  .application-popup-image {
    max-height: 150px;
  }

  .application-popup-text {
    font-size: 0.8125rem;
  }
}

.application-image {
  width: 100%;
  height: auto;
  max-width: 80rem;
  margin: 0 auto;
  display: block;
}

.application-placeholder {
  display: none;
  width: 100%;
  aspect-ratio: 16 / 10;
  background: linear-gradient(to bottom right, #eff6ff, #dbeafe);
  border-radius: 0.5rem;
  align-items: center;
  justify-content: center;
}

.application-placeholder.show {
  display: flex;
}

.placeholder-content {
  text-align: center;
}

.placeholder-icon {
  font-size: 5rem;
  color: #1d4ed8;
  margin-bottom: 1rem;
}

.placeholder-title {
  font-size: 1.25rem;
  color: #374151;
  font-weight: 500;
}

.placeholder-description {
  font-size: 0.875rem;
  color: #6b7280;
  margin-top: 0.5rem;
}

/* 响应式设计 */
@media (max-width: 768px) {
  .app-tab {
    padding: 0.75rem 1rem;
    font-size: 0.875rem;
  }

  .tab-navigation {
    flex-wrap: wrap;
  }
}