/* 
 * 首页专用样式 - 现代化设计
 * 融入东方美学：虚实相生，动静结合
 */

/* Hero 区域 */
.hero-section {
  background: linear-gradient(135deg, #1e40af 0%, #3b82f6 50%, #1e3a8a 100%);
  padding: var(--space-4xl) 0;
  color: white;
  position: relative;
  overflow: hidden;
}

.hero-section::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: 
    radial-gradient(circle at 20% 50%, rgba(255,255,255,0.1) 0%, transparent 50%),
    radial-gradient(circle at 80% 80%, rgba(255,255,255,0.1) 0%, transparent 50%);
  animation: pulse 15s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 0.5; }
  50% { opacity: 0.8; }
}

.hero-content {
  position: relative;
  z-index: 1;
  text-align: center;
}

.hero-title {
  font-size: 3.5rem;
  font-weight: 800;
  margin-bottom: var(--space-lg);
  line-height: 1.1;
  text-shadow: 0 2px 10px rgba(0,0,0,0.2);
}

.hero-title .hero-highlight {
  color: var(--color-accent);
  position: relative;
  display: inline-block;
}

.hero-title .hero-highlight::after {
  content: '';
  position: absolute;
  bottom: -5px;
  left: 0;
  width: 100%;
  height: 3px;
  background: var(--color-accent-gradient);
  border-radius: var(--radius-full);
}

.hero-subtitle {
  font-size: 1.25rem;
  opacity: 0.95;
  margin-bottom: var(--space-2xl);
  max-width: 48rem;
  margin-left: auto;
  margin-right: auto;
  line-height: 1.8;
}

.hero-cta {
  display: flex;
  gap: var(--space-lg);
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: var(--space-3xl);
}

.hero-stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: var(--space-xl);
  padding-top: var(--space-2xl);
  border-top: 1px solid rgba(255,255,255,0.15);
  max-width: 60rem;
  margin: 0 auto;
}

.stat-item {
  text-align: center;
  padding: var(--space-md);
}

.stat-number {
  font-size: 2.5rem;
  font-weight: 800;
  color: var(--color-accent);
  margin-bottom: var(--space-xs);
  text-shadow: 0 2px 10px rgba(0,0,0,0.2);
}

.stat-label {
  font-size: 0.9375rem;
  opacity: 0.9;
}

/* 搜索区域 */
.search-section {
  background: var(--color-surface);
  padding: var(--space-2xl) 0;
  border-bottom: 1px solid var(--color-border);
  position: relative;
  margin-top: -3rem;
  z-index: 10;
}

.search-box {
  display: flex;
  max-width: 48rem;
  margin: 0 auto;
  box-shadow: var(--shadow-xl);
  border-radius: var(--radius-xl);
  overflow: hidden;
  background: var(--color-surface);
}

.search-box input {
  flex: 1;
  padding: var(--space-lg) var(--space-xl);
  border: none;
  font-size: 1rem;
  outline: none;
  background: transparent;
}

.search-box input:focus {
  background: rgba(30, 64, 175, 0.02);
}

.search-box button {
  padding: var(--space-lg) var(--space-2xl);
  background: var(--color-primary-gradient);
  color: white;
  border: none;
  cursor: pointer;
  font-size: 1rem;
  font-weight: 600;
  transition: all var(--transition-normal);
}

.search-box button:hover {
  background: linear-gradient(135deg, #1e3a8a 0%, #1e40af 100%);
}

/* 服务区域 */
.service-section {
  padding: var(--space-4xl) 0;
  background: var(--color-surface);
}

.service-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-xl);
}

.service-card {
  background: var(--color-surface);
  padding: var(--space-2xl);
  border-radius: var(--radius-xl);
  text-align: center;
  border: 1px solid var(--color-border);
  transition: all var(--transition-normal);
  position: relative;
  overflow: hidden;
}

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

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

.service-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-xl);
  border-color: var(--color-primary-light);
}

.service-icon {
  margin-bottom: var(--space-lg);
  opacity: 0.9;
  transition: transform var(--transition-normal);
}

.service-card:hover .service-icon {
  transform: scale(1.1) rotate(5deg);
}

.service-card h3 {
  color: var(--color-primary);
  margin-bottom: var(--space-sm);
  font-size: 1.25rem;
}

.service-card p {
  color: var(--color-text-secondary);
  font-size: 0.9375rem;
  line-height: 1.7;
}

/* 业务范围区域 */
.scope-section {
  padding: var(--space-4xl) 0;
  background: linear-gradient(135deg, rgba(30, 64, 175, 0.03) 0%, rgba(59, 130, 246, 0.03) 100%);
}

.scope-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-xl);
}

.scope-card {
  background: var(--color-surface);
  padding: var(--space-2xl);
  border-radius: var(--radius-xl);
  border: 1px solid var(--color-border);
  transition: all var(--transition-normal);
}

.scope-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: var(--color-primary-light);
}

.scope-icon {
  margin-bottom: var(--space-lg);
  opacity: 0.9;
}

.scope-card h3 {
  color: var(--color-primary);
  text-align: center;
  margin-bottom: var(--space-lg);
  font-size: 1.25rem;
}

.scope-content {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-sm);
}

.scope-item {
  padding: var(--space-sm) var(--space-md);
  background: rgba(30, 64, 175, 0.04);
  border-radius: var(--radius-md);
  text-align: center;
  font-size: 0.875rem;
  color: var(--color-text-secondary);
  transition: all var(--transition-fast);
  cursor: default;
}

.scope-item:hover {
  background: rgba(30, 64, 175, 0.1);
  color: var(--color-primary);
  transform: scale(1.05);
}

/* 流程区域 */
.process-section {
  padding: var(--space-4xl) 0;
  background: var(--color-surface);
}

.process-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-lg);
}

.process-card {
  background: var(--color-primary-gradient);
  padding: var(--space-2xl) var(--space-lg);
  border-radius: var(--radius-xl);
  text-align: center;
  color: white;
  transition: all var(--transition-normal);
  position: relative;
  overflow: hidden;
}

.process-card::after {
  content: '';
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: radial-gradient(circle, rgba(255,255,255,0.1) 0%, transparent 70%);
  opacity: 0;
  transition: opacity var(--transition-normal);
}

.process-card:hover::after {
  opacity: 1;
}

.process-card:hover {
  transform: translateY(-8px) scale(1.02);
  box-shadow: var(--shadow-2xl);
}

.process-number {
  font-size: 3rem;
  font-weight: 800;
  opacity: 0.6;
  margin-bottom: var(--space-sm);
  line-height: 1;
}

.process-icon {
  margin-bottom: var(--space-md);
  filter: brightness(0) invert(1);
}

.process-card h3 {
  margin-bottom: var(--space-sm);
  font-size: 1.125rem;
  font-weight: 600;
}

.process-card p {
  font-size: 0.875rem;
  opacity: 0.9;
  line-height: 1.6;
}

/* 特色区域 */
.features-section {
  padding: var(--space-4xl) 0;
  background: linear-gradient(135deg, rgba(30, 64, 175, 0.03) 0%, rgba(59, 130, 246, 0.03) 100%);
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-xl);
}

.features-card {
  background: var(--color-surface);
  padding: var(--space-2xl);
  border-radius: var(--radius-xl);
  border: 1px solid var(--color-border);
  transition: all var(--transition-normal);
  text-align: center;
}

.features-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
  border-color: var(--color-primary-light);
}

.features-icon {
  margin-bottom: var(--space-lg);
  opacity: 0.9;
}

.features-card h3 {
  color: var(--color-primary);
  margin-bottom: var(--space-sm);
  font-size: 1.125rem;
}

.features-card p {
  color: var(--color-text-secondary);
  font-size: 0.875rem;
  line-height: 1.7;
}

/* 案例区域 */
.case-section {
  padding: var(--space-4xl) 0;
  background: var(--color-surface);
}

.case-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--space-lg);
}

.case-card {
  background: linear-gradient(135deg, rgba(30, 64, 175, 0.04) 0%, rgba(59, 130, 246, 0.04) 100%);
  padding: var(--space-xl);
  border-radius: var(--radius-xl);
  border: 1px solid var(--color-border);
  transition: all var(--transition-normal);
}

.case-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
  border-color: var(--color-primary-light);
}

.case-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: var(--space-sm);
}

.case-title {
  font-size: 1rem;
  font-weight: 600;
  color: var(--color-text-primary);
  flex: 1;
}

.case-location {
  font-size: 0.875rem;
  color: var(--color-text-muted);
  white-space: nowrap;
  margin-left: var(--space-sm);
}

.case-result {
  color: var(--color-success);
  font-weight: 600;
  font-size: 0.875rem;
  display: flex;
  align-items: center;
  gap: var(--space-xs);
}

.case-result::before {
  content: '✓';
  display: inline-flex;
  width: 18px;
  height: 18px;
  background: var(--color-success);
  color: white;
  border-radius: 50%;
  align-items: center;
  justify-content: center;
  font-size: 0.75rem;
}

/* 知识区域 */
.knowledge-section {
  padding: var(--space-4xl) 0;
  background: linear-gradient(135deg, rgba(30, 64, 175, 0.03) 0%, rgba(59, 130, 246, 0.03) 100%);
}

.knowledge-list {
  background: var(--color-surface);
  border-radius: var(--radius-xl);
  overflow: hidden;
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-sm);
}

.knowledge-item {
  padding: var(--space-lg) var(--space-xl);
  border-bottom: 1px solid var(--color-border);
  transition: background var(--transition-fast);
}

.knowledge-item:last-child {
  border-bottom: none;
}

.knowledge-item:hover {
  background: rgba(30, 64, 175, 0.02);
}

.knowledge-item a {
  display: flex;
  justify-content: space-between;
  align-items: center;
  text-decoration: none;
  color: inherit;
}

.knowledge-title {
  font-size: 1rem;
  font-weight: 600;
  color: var(--color-text-primary);
  transition: color var(--transition-fast);
}

.knowledge-item:hover .knowledge-title {
  color: var(--color-primary);
}

.knowledge-meta {
  font-size: 0.875rem;
  color: var(--color-text-muted);
  margin-top: var(--space-xs);
}

.knowledge-arrow {
  color: var(--color-text-muted);
  font-size: 1.25rem;
  transition: all var(--transition-normal);
}

.knowledge-item:hover .knowledge-arrow {
  color: var(--color-primary);
  transform: translateX(8px);
}

/* 响应式调整 */
@media (max-width: 1024px) {
  .service-grid,
  .features-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .process-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .hero-title {
    font-size: 2.25rem;
  }
  
  .hero-subtitle {
    font-size: 1rem;
  }
  
  .hero-cta {
    flex-direction: column;
    align-items: stretch;
  }
  
  .hero-stats {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .service-grid,
  .scope-grid,
  .process-grid,
  .features-grid {
    grid-template-columns: 1fr;
  }
  
  .search-section {
    margin-top: 0;
  }
  
  .search-box {
    flex-direction: column;
  }
  
  .search-box button {
    border-radius: 0 0 var(--radius-xl) var(--radius-xl);
  }
}