/* ========================================
   首页 - 工业物资集散主题
   ======================================== */

/* 英雄区域 */
.hero-industrial {
  margin-top: 80px;
  padding: var(--spacing-2xl) 0;
  background: radial-gradient(circle at 20% 20%, rgba(255, 193, 7, 0.15), transparent 45%),
              linear-gradient(120deg, #0b0d11 0%, #151820 60%, #0b0c10 100%);
  color: var(--color-text-light);
  position: relative;
  overflow: hidden;
}

.hero-industrial::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image: linear-gradient(0deg, rgba(255, 255, 255, 0.04) 1px, transparent 1px),
                    linear-gradient(90deg, rgba(255, 255, 255, 0.04) 1px, transparent 1px);
  background-size: 80px 80px;
  opacity: 0.4;
  pointer-events: none;
}

.hero-industrial .container {
  position: relative;
  z-index: 1;
}

.hero-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--spacing-2xl);
  align-items: center;
}

.hero-content {
  color: rgba(255, 255, 255, 0.9);
}

.hero-description {
  font-size: 1.125rem;
  color: rgba(255, 255, 255, 0.75);
  margin-bottom: var(--spacing-lg);
  line-height: 1.8;
}

.hero-highlights {
  list-style: none;
  margin: 0 0 var(--spacing-lg);
  padding: 0;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: var(--spacing-md);
}

.hero-highlights li {
  padding: var(--spacing-sm) var(--spacing-md);
  background-color: rgba(255, 255, 255, 0.05);
  border-radius: var(--border-radius-base);
  border: 1px solid rgba(255, 255, 255, 0.08);
  font-size: var(--font-size-sm);
  line-height: 1.6;
}

.hero-highlights span {
  display: block;
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-bold);
  color: var(--color-secondary);
}

.hero-actions {
  display: flex;
  gap: var(--spacing-md);
  margin-bottom: var(--spacing-lg);
}

.hero-metrics {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: var(--spacing-md);
}

.metric-card {
  padding: var(--spacing-lg);
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: var(--border-radius-lg);
  backdrop-filter: blur(6px);
}

.metric-label {
  font-size: var(--font-size-sm);
  color: rgba(255, 255, 255, 0.7);
}

.metric-number {
  display: block;
  font-size: 2.25rem;
  font-weight: var(--font-weight-bold);
  color: var(--color-secondary);
  margin: var(--spacing-sm) 0;
}

.metric-unit {
  font-size: var(--font-size-sm);
  color: rgba(255, 255, 255, 0.6);
}

.hero-visual {
  position: relative;
  perspective: 1200px;
}

.hero-3d-model {
  position: relative;
  border-radius: var(--border-radius-lg);
  overflow: hidden;
  transform-style: preserve-3d;
  border: 1px solid rgba(255, 255, 255, 0.08);
  box-shadow: 0 30px 80px rgba(0, 0, 0, 0.45);
}

.hero-3d-model img {
  width: 100%;
  height: 480px;
  object-fit: cover;
  display: block;
  filter: saturate(1.1);
}

.model-chip {
  position: absolute;
  top: 15%;
  right: 10%;
  padding: 6px 14px;
  background-color: rgba(0, 0, 0, 0.7);
  color: var(--color-secondary);
  border-radius: var(--border-radius-full);
  font-size: var(--font-size-sm);
  border: 1px solid rgba(255, 255, 255, 0.15);
  transform: translateZ(40px);
}

.model-chip:nth-child(2) { top: 45%; right: 8%; }
.model-chip:nth-child(3) { top: 70%; right: 20%; }

.hero-visual-meta {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--spacing-md);
  margin-top: var(--spacing-lg);
}

.visual-card {
  padding: var(--spacing-md);
  background-color: rgba(20, 23, 31, 0.8);
  border-radius: var(--border-radius-lg);
  border: 1px solid rgba(255, 255, 255, 0.08);
  text-align: left;
}

.visual-card strong {
  display: block;
  font-size: 1.75rem;
  color: var(--color-text-light);
}

.visual-card p {
  margin: var(--spacing-xs) 0 0;
  color: rgba(255, 255, 255, 0.7);
  font-size: var(--font-size-sm);
}

/* 能力板块 */
.industrial-capabilities {
  padding: var(--spacing-2xl) 0;
  background-color: var(--color-background);
}

.capability-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: var(--spacing-lg);
}

.capability-card {
  background-color: #ffffff;
  border-radius: var(--border-radius-lg);
  padding: var(--spacing-xl);
  border: 1px solid rgba(33, 36, 40, 0.08);
  box-shadow: 0 20px 40px rgba(15, 17, 22, 0.08);
  transition: transform var(--transition-base), box-shadow var(--transition-base);
}

.capability-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 30px 60px rgba(15, 17, 22, 0.12);
}

.capability-card h3 {
  margin-bottom: var(--spacing-sm);
  color: var(--color-primary-dark);
}

.capability-card p {
  color: var(--color-text-gray);
  margin-bottom: var(--spacing-md);
}

.capability-card ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: var(--spacing-xs);
  font-size: var(--font-size-sm);
}

.capability-card li {
  padding-left: var(--spacing-md);
  position: relative;
  color: var(--color-text-dark);
}

.capability-card li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.6em;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background-color: var(--color-secondary);
}

/* 分类导航 */
.material-hub {
  padding: var(--spacing-2xl) 0;
  background-color: #11141a;
  color: var(--color-text-light);
  position: relative;
}

.material-hub::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 80% 20%, rgba(41, 182, 246, 0.12), transparent 40%);
  pointer-events: none;
}

.material-hub .container {
  position: relative;
  z-index: 1;
}

.category-system {
  display: grid;
  grid-template-columns: 300px 1fr;
  gap: var(--spacing-xl);
  margin-bottom: var(--spacing-2xl);
}

.category-nav {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
}

.category-nav button {
  padding: var(--spacing-md);
  text-align: left;
  background-color: rgba(255, 255, 255, 0.02);
  color: rgba(255, 255, 255, 0.7);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: var(--border-radius-base);
  font-size: var(--font-size-base);
  cursor: pointer;
  transition: all var(--transition-base);
}

.category-nav button.active {
  background-color: rgba(255, 193, 7, 0.15);
  color: var(--color-secondary);
  border-color: rgba(255, 193, 7, 0.5);
}

.category-panels {
  position: relative;
}

.category-panel {
  display: none;
  background-color: rgba(12, 14, 18, 0.8);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: var(--border-radius-lg);
  padding: var(--spacing-xl);
  box-shadow: 0 30px 60px rgba(0, 0, 0, 0.35);
}

.category-panel.active {
  display: block;
}

.category-panel h3 {
  margin-bottom: var(--spacing-sm);
  color: var(--color-text-light);
}

.category-panel p {
  color: rgba(255, 255, 255, 0.7);
  margin-bottom: var(--spacing-md);
}

.panel-stats {
  display: flex;
  gap: var(--spacing-lg);
  margin-bottom: var(--spacing-md);
  color: var(--color-secondary);
  font-weight: var(--font-weight-medium);
}

.panel-links {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-sm);
}

.panel-links a {
  padding: 6px 16px;
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: var(--border-radius-full);
  color: var(--color-text-light);
  text-decoration: none;
  font-size: var(--font-size-sm);
}

.category-gallery {
  gap: var(--spacing-lg);
}

.category-card {
  background-color: #ffffff;
  border-radius: var(--border-radius-lg);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  border: 1px solid rgba(33, 36, 40, 0.08);
  box-shadow: 0 20px 40px rgba(15, 17, 22, 0.08);
}

.category-image {
  height: 200px;
  overflow: hidden;
}

.category-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-base);
}

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

.category-card-body {
  padding: var(--spacing-lg);
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
}

.category-card-body h3 {
  color: var(--color-primary-dark);
}

.category-card-body p {
  color: var(--color-text-gray);
  flex: 1;
}

/* 库存查询 */
.inventory-query {
  padding: var(--spacing-2xl) 0;
  background: linear-gradient(180deg, #fdfdfd 0%, #f1f2f6 100%);
}

.inventory-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--spacing-xl);
}

.query-card,
.result-card {
  background-color: #ffffff;
  border-radius: var(--border-radius-xl);
  border: 1px solid rgba(33, 36, 40, 0.08);
  box-shadow: 0 20px 60px rgba(15, 17, 22, 0.08);
  padding: var(--spacing-xl);
}

.query-card form {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
}

.query-card label {
  font-size: var(--font-size-sm);
  color: var(--color-text-gray);
}

.query-card input,
.query-card select {
  width: 100%;
}

.form-tip {
  font-size: var(--font-size-sm);
  color: var(--color-text-gray);
  margin-top: var(--spacing-sm);
}

.inventory-status-list {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
  margin-bottom: var(--spacing-lg);
}

.inventory-status-item {
  display: flex;
  justify-content: space-between;
  gap: var(--spacing-md);
  padding: var(--spacing-md);
  border-radius: var(--border-radius-base);
  border: 1px solid rgba(33, 36, 40, 0.08);
  background-color: var(--color-background-light);
}

.inventory-status-item h4 {
  margin-bottom: var(--spacing-xs);
  color: var(--color-primary-dark);
}

.inventory-status-item p {
  margin: 0;
  color: var(--color-text-gray);
  font-size: var(--font-size-sm);
}

.status-meta {
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
  white-space: nowrap;
}

.status-label {
  font-weight: var(--font-weight-medium);
  color: var(--color-primary-dark);
}

.status-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  display: inline-flex;
}

.status-dot.online { background-color: #4caf50; box-shadow: 0 0 10px rgba(76, 175, 80, 0.4); }
.status-dot.transfer { background-color: #29b6f6; box-shadow: 0 0 10px rgba(41, 182, 246, 0.4); }
.status-dot.warning { background-color: #ff9800; box-shadow: 0 0 10px rgba(255, 152, 0, 0.4); }

.inventory-legend {
  display: flex;
  gap: var(--spacing-lg);
  font-size: var(--font-size-sm);
  color: var(--color-text-gray);
}

.inventory-legend div {
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
}

.inventory-insights {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: var(--spacing-md);
  margin-top: var(--spacing-lg);
}

.insight-card {
  padding: var(--spacing-md);
  border-radius: var(--border-radius-lg);
  border: 1px solid rgba(33, 36, 40, 0.08);
  background-color: var(--color-background-light);
  text-align: center;
}

.insight-card p {
  margin-bottom: var(--spacing-xs);
  color: var(--color-text-gray);
}

.insight-card strong {
  font-size: 2rem;
  color: var(--color-primary-dark);
}

/* 解决方案 */
.solution-showcase {
  padding: var(--spacing-2xl) 0;
  background-color: var(--color-background);
}

.solution-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: var(--spacing-lg);
}

.solution-card {
  display: flex;
  flex-direction: column;
  border-radius: var(--border-radius-lg);
  overflow: hidden;
  border: 1px solid rgba(33, 36, 40, 0.08);
  background-color: #ffffff;
  box-shadow: 0 20px 40px rgba(15, 17, 22, 0.08);
}

.solution-image {
  height: 240px;
  overflow: hidden;
}

.solution-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.solution-body {
  padding: var(--spacing-lg);
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
  flex: 1;
}

.solution-body ul {
  margin: 0;
  padding-left: var(--spacing-lg);
  color: var(--color-text-gray);
  font-size: var(--font-size-sm);
}

/* 车队展示 */
.fleet {
  padding: var(--spacing-2xl) 0;
  background: linear-gradient(120deg, #0d0f13, #1c212c);
  color: var(--color-text-light);
}

.fleet-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--spacing-xl);
}

.fleet-visual {
  position: relative;
  border-radius: var(--border-radius-lg);
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.1);
}

.fleet-visual img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  min-height: 420px;
}

.fleet-overlay {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  gap: var(--spacing-sm);
  padding: var(--spacing-lg);
  background: linear-gradient(180deg, transparent 20%, rgba(0, 0, 0, 0.8) 100%);
}

.fleet-badge {
  background-color: rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(10px);
  border-radius: var(--border-radius-base);
  padding: var(--spacing-sm);
  border: 1px solid rgba(255, 255, 255, 0.15);
}

.fleet-badge strong {
  font-size: 1.5rem;
  color: var(--color-secondary);
}

.fleet-panel {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-lg);
}

.fleet-metrics {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: var(--spacing-md);
}

.fleet-metric {
  background-color: rgba(255, 255, 255, 0.05);
  border-radius: var(--border-radius-base);
  padding: var(--spacing-md);
  text-align: center;
  border: 1px solid rgba(255, 255, 255, 0.08);
}

.fleet-metric span {
  display: block;
  color: rgba(255, 255, 255, 0.6);
  font-size: var(--font-size-sm);
}

.fleet-metric strong {
  font-size: 2rem;
  color: var(--color-secondary);
}

.fleet-timeline {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
}

.timeline-item {
  display: flex;
  gap: var(--spacing-md);
  padding: var(--spacing-md);
  border-radius: var(--border-radius-base);
  border: 1px solid rgba(255, 255, 255, 0.15);
  background-color: rgba(0, 0, 0, 0.25);
  opacity: 0.65;
  transition: opacity var(--transition-base), border-color var(--transition-base);
}

.timeline-item.active {
  opacity: 1;
  border-color: var(--color-secondary);
}

.timeline-time {
  font-size: 1.25rem;
  font-weight: var(--font-weight-bold);
  color: var(--color-secondary);
  min-width: 70px;
}

.timeline-body p {
  margin: 0 0 var(--spacing-xs);
}

/* 案例 */
.cases-advanced {
  padding: var(--spacing-2xl) 0;
  background-color: var(--color-background);
}

.case-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: var(--spacing-lg);
}

.case-card {
  display: flex;
  flex-direction: column;
  border-radius: var(--border-radius-lg);
  overflow: hidden;
  border: 1px solid rgba(33, 36, 40, 0.08);
  background-color: #ffffff;
  box-shadow: 0 20px 40px rgba(15, 17, 22, 0.08);
}

.case-image img {
  width: 100%;
  height: 220px;
  object-fit: cover;
}

.case-body {
  padding: var(--spacing-lg);
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
  flex: 1;
}

.case-body ul {
  margin: 0;
  padding-left: var(--spacing-lg);
  color: var(--color-text-gray);
  font-size: var(--font-size-sm);
}

/* 新闻 */
.news-preview {
  padding: var(--spacing-2xl) 0;
  background-color: #0f1116;
  color: var(--color-text-light);
}

.news-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: var(--spacing-lg);
}

.news-card {
  padding: var(--spacing-xl);
  border-radius: var(--border-radius-lg);
  border: 1px solid rgba(255, 255, 255, 0.1);
  background: rgba(255, 255, 255, 0.02);
  min-height: 280px;
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
  box-shadow: 0 30px 60px rgba(0, 0, 0, 0.35);
}

.news-date {
  font-size: var(--font-size-sm);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.6);
}

.news-card h3 {
  color: var(--color-text-light);
}

.news-card p {
  color: rgba(255, 255, 255, 0.7);
}

/* CTA */
.industrial-cta {
  padding: var(--spacing-2xl) 0;
  text-align: center;
  background: radial-gradient(circle at 20% 20%, rgba(255, 193, 7, 0.15), transparent 45%),
              linear-gradient(120deg, #141720, #0c0e12);
  color: var(--color-text-light);
}

.industrial-cta h2 {
  color: var(--color-text-light);
  margin-bottom: var(--spacing-md);
  font-size: 2.5rem;
}

.industrial-cta p {
  color: rgba(255, 255, 255, 0.8);
  margin-bottom: var(--spacing-xl);
}

.cta-buttons {
  display: flex;
  justify-content: center;
  gap: var(--spacing-md);
  flex-wrap: wrap;
}

/* 伙伴 */
.partners-preview {
  padding: var(--spacing-2xl) 0;
  background-color: var(--color-background);
}

.partners-grid {
  display: grid;
  grid-template-columns: repeat(6, minmax(0, 1fr));
  gap: var(--spacing-lg);
}

.partner-logo {
  border-radius: var(--border-radius-lg);
  background-color: #ffffff;
  border: 1px solid rgba(33, 36, 40, 0.08);
  min-height: 140px;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 10px 30px rgba(15, 17, 22, 0.06);
}

.logo-placeholder {
  font-weight: var(--font-weight-bold);
  color: var(--color-text-gray);
}

/* 响应式 */
@media (max-width: 1200px) {
  .capability-grid,
  .case-grid,
  .solution-grid,
  .news-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 1024px) {
  .hero-grid,
  .category-system,
  .inventory-grid,
  .fleet-grid {
    grid-template-columns: 1fr;
  }

  .hero-highlights,
  .hero-metrics {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .category-nav {
    flex-direction: row;
    flex-wrap: wrap;
  }

  .category-nav button {
    flex: 1;
    min-width: 140px;
  }

  .fleet-metrics {
    grid-template-columns: 1fr;
  }

  .partners-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (max-width: 768px) {
  .hero-highlights,
  .hero-metrics,
  .inventory-insights,
  .category-gallery {
    grid-template-columns: 1fr;
  }

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

  .category-nav {
    flex-direction: column;
  }

  .partners-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 480px) {
  .hero-actions {
    flex-direction: column;
  }

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