/* ============================================
   天鸿智算 - Hero区域和首屏样式
   ============================================ */

/* Hero 区域 */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding-top: var(--header-height);
  background: linear-gradient(135deg, #fef2f2 0%, #ffffff 50%, #fef2f2 100%);
  overflow: hidden;
}

/* 背景装饰 */
.hero-bg-decoration {
  position: absolute;
  inset: 0;
  overflow: hidden;
  pointer-events: none;
}

.hero-blob {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  opacity: 0.4;
}

.hero-blob-1 {
  width: 600px;
  height: 600px;
  background: linear-gradient(135deg, #fecaca 0%, #fca5a5 100%);
  top: -200px;
  right: -100px;
  animation: float 8s ease-in-out infinite;
}

.hero-blob-2 {
  width: 400px;
  height: 400px;
  background: linear-gradient(135deg, #fca5a5 0%, #f87171 100%);
  bottom: -100px;
  left: -100px;
  animation: float 10s ease-in-out infinite reverse;
}

.hero-blob-3 {
  width: 300px;
  height: 300px;
  background: linear-gradient(135deg, #fee2e2 0%, #fecaca 100%);
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  animation: pulse 6s ease-in-out infinite;
}

/* 网格背景 */
.hero-grid {
  position: absolute;
  inset: 0;
  background-image: 
    linear-gradient(rgba(220, 38, 38, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(220, 38, 38, 0.03) 1px, transparent 1px);
  background-size: 60px 60px;
  mask-image: radial-gradient(ellipse at center, black 0%, transparent 70%);
}

/* Hero 内容 */
.hero-container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: var(--space-3xl) var(--space-lg);
  position: relative;
  z-index: 1;
}

.hero-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-3xl);
  align-items: center;
}

.hero-text {
  max-width: 600px;
}

/* 标签 */
.hero-tag {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-sm) var(--space-md);
  background: rgba(220, 38, 38, 0.1);
  border: 1px solid rgba(220, 38, 38, 0.2);
  border-radius: var(--radius-full);
  margin-bottom: var(--space-lg);
}

.hero-tag-icon {
  width: 24px;
  height: 24px;
  background: var(--gradient-primary);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-white);
  font-size: 0.75rem;
}

.hero-tag-text {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text-red);
}

/* 标题 */
.hero-title {
  font-size: 3.5rem;
  font-weight: 800;
  line-height: 1.1;
  margin-bottom: var(--space-lg);
  color: var(--text-primary);
}

.hero-title-highlight {
  background: linear-gradient(135deg, #dc2626 0%, #ef4444 50%, #f87171 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  position: relative;
}

/* 副标题 */
.hero-subtitle {
  font-size: 1.25rem;
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: var(--space-xl);
}

/* CTA按钮组 */
.hero-cta {
  display: flex;
  gap: var(--space-md);
  margin-bottom: var(--space-2xl);
}

.btn-hero-primary {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-md) var(--space-xl);
  background: var(--gradient-primary);
  color: var(--text-white);
  font-size: 1rem;
  font-weight: 600;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-red);
  transition: all var(--transition-normal);
}

.btn-hero-primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 25px rgba(220, 38, 38, 0.4);
}

.btn-hero-secondary {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-md) var(--space-xl);
  background: var(--bg-white);
  color: var(--text-red);
  font-size: 1rem;
  font-weight: 600;
  border-radius: var(--radius-lg);
  border: 2px solid var(--border-red);
  transition: all var(--transition-normal);
}

.btn-hero-secondary:hover {
  background: var(--bg-red-50);
  border-color: var(--primary-400);
}

/* 统计信息 */
.hero-stats {
  display: flex;
  gap: var(--space-2xl);
  padding-top: var(--space-xl);
  border-top: 1px solid var(--border-gray);
}

.stat-item {
  display: flex;
  flex-direction: column;
  gap: var(--space-xs);
}

.stat-value {
  font-size: 2rem;
  font-weight: 700;
  color: var(--text-red);
  line-height: 1;
}

.stat-label {
  font-size: 0.875rem;
  color: var(--text-secondary);
}

/* Hero 图片/插图区域 */
.hero-visual {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
}

.hero-image-container {
  position: relative;
  width: 100%;
  max-width: 560px;
}

.hero-image {
  width: 100%;
  height: auto;
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-xl);
}

/* 浮动卡片 */
.floating-card {
  position: absolute;
  background: var(--bg-white);
  border-radius: var(--radius-lg);
  padding: var(--space-md);
  box-shadow: var(--shadow-lg);
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  animation: float 4s ease-in-out infinite;
}

.floating-card-1 {
  top: 10%;
  right: -20px;
  animation-delay: 0s;
}

.floating-card-2 {
  bottom: 20%;
  left: -30px;
  animation-delay: 1s;
}

.floating-card-3 {
  bottom: 5%;
  right: 10%;
  animation-delay: 2s;
}

.floating-icon {
  width: 40px;
  height: 40px;
  background: var(--gradient-primary);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-white);
  font-size: 1rem;
}

.floating-text {
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--text-primary);
}

.floating-subtext {
  font-size: 0.75rem;
  color: var(--text-secondary);
}

/* 产品展示区域 */
.products-section {
  padding: var(--space-3xl) 0;
  background: var(--bg-white);
}

.section-header {
  text-align: center;
  margin-bottom: var(--space-2xl);
}

.section-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-sm) var(--space-md);
  background: var(--bg-red-50);
  border: 1px solid var(--border-red);
  border-radius: var(--radius-full);
  margin-bottom: var(--space-md);
}

.section-badge-text {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text-red);
}

/* 价格卡片区域 */
.pricing-section {
  padding: var(--space-3xl) 0;
  background: linear-gradient(180deg, var(--bg-gray-50) 0%, var(--bg-white) 100%);
}

.pricing-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-lg);
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--space-lg);
}

/* 响应式调整 */
@media (max-width: 1280px) {
  .pricing-grid {
    grid-template-columns: repeat(2, 1fr);
    max-width: 90vw;
    gap: var(--space-md);
  }
}

@media (max-width: 768px) {
  .pricing-grid {
    grid-template-columns: 1fr;
    max-width: 95vw;
  }
}

/* 解决方案区域 */
.solutions-section {
  padding: var(--space-3xl) 0;
  background: var(--bg-white);
}

.solutions-tabs {
  display: flex;
  justify-content: center;
  gap: var(--space-md);
  margin-bottom: var(--space-2xl);
}

.solution-tab {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-md) var(--space-xl);
  font-size: 1rem;
  font-weight: 500;
  color: var(--text-secondary);
  border-radius: var(--radius-lg);
  cursor: pointer;
  transition: all var(--transition-fast);
  border: 2px solid transparent;
}

.solution-tab:hover {
  color: var(--text-red);
  background: var(--bg-red-50);
}

.solution-tab.active {
  color: var(--text-red);
  background: var(--bg-red-50);
  border-color: var(--primary-300);
}

.solution-tab i {
  font-size: 1.125rem;
}

.solution-content {
  display: none;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--space-lg);
}

.solution-content.active {
  display: block;
  animation: fadeIn 0.5s ease;
}

/* 解决方案网格 */
.solution-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-xl);
}

.solution-category {
  background: var(--bg-white);
  border-radius: var(--radius-xl);
  padding: var(--space-xl);
  border: 1px solid var(--border-gray);
  transition: all var(--transition-normal);
}

.solution-category:hover {
  border-color: var(--primary-300);
  box-shadow: var(--shadow-lg);
}

.solution-category-title {
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: var(--space-md);
  padding-bottom: var(--space-md);
  border-bottom: 1px solid var(--border-gray);
}

.solution-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.solution-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-sm) 0;
  font-size: 0.9375rem;
  color: var(--text-secondary);
  transition: all var(--transition-fast);
  cursor: pointer;
}

.solution-item:hover {
  color: var(--text-red);
}

.solution-item-text {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

/* 特性区域 */
.features-section {
  padding: var(--space-3xl) 0;
  background: linear-gradient(180deg, var(--bg-red-50) 0%, var(--bg-white) 100%);
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-xl);
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--space-lg);
}

.feature-card {
  background: var(--bg-white);
  border-radius: var(--radius-xl);
  padding: var(--space-xl);
  text-align: center;
  border: 1px solid var(--border-gray);
  transition: all var(--transition-normal);
}

.feature-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-xl);
  border-color: var(--primary-200);
}

.feature-icon {
  width: 64px;
  height: 64px;
  background: var(--gradient-primary);
  border-radius: var(--radius-xl);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto var(--space-lg);
  color: var(--text-white);
  font-size: 1.75rem;
}

.feature-title {
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: var(--space-sm);
}

.feature-desc {
  font-size: 0.9375rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* CTA区域 */
.cta-section {
  padding: var(--space-3xl) 0;
  background: var(--gradient-primary);
  position: relative;
  overflow: hidden;
}

.cta-section::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image: 
    radial-gradient(circle at 20% 50%, rgba(255,255,255,0.1) 0%, transparent 50%),
    radial-gradient(circle at 80% 50%, rgba(255,255,255,0.1) 0%, transparent 50%);
}

.cta-content {
  position: relative;
  z-index: 1;
  text-align: center;
  max-width: 800px;
  margin: 0 auto;
  padding: 0 var(--space-lg);
}

.cta-title {
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--text-white);
  margin-bottom: var(--space-md);
}

.cta-subtitle {
  font-size: 1.125rem;
  color: rgba(255, 255, 255, 0.9);
  margin-bottom: var(--space-xl);
}

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

.btn-cta-light {
  background: var(--bg-white);
  color: var(--text-red);
  padding: var(--space-md) var(--space-xl);
  font-size: 1rem;
  font-weight: 600;
  border-radius: var(--radius-lg);
  transition: all var(--transition-normal);
}

.btn-cta-light:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
}

.btn-cta-outline {
  background: transparent;
  color: var(--text-white);
  padding: var(--space-md) var(--space-xl);
  font-size: 1rem;
  font-weight: 600;
  border-radius: var(--radius-lg);
  border: 2px solid rgba(255, 255, 255, 0.5);
  transition: all var(--transition-normal);
}

.btn-cta-outline:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: var(--text-white);
}

/* 响应式 */
@media (max-width: 1024px) {
  .hero-content {
    grid-template-columns: 1fr;
    text-align: center;
  }
  
  .hero-title {
    font-size: 2.5rem;
  }
  
  .hero-stats {
    justify-content: center;
  }
  
  .hero-visual {
    display: none;
  }
  
  .pricing-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .solution-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .features-grid {
    grid-template-columns: 1fr;
  }
  
  .cta-title {
    font-size: 1.875rem;
  }
}

@media (max-width: 768px) {
  .hero {
    min-height: auto;
    padding: calc(var(--header-height) + var(--space-xl)) 0 var(--space-2xl);
  }
  
  .hero-title {
    font-size: 2rem;
  }
  
  .hero-subtitle {
    font-size: 1rem;
  }
  
  .hero-cta {
    flex-direction: column;
  }
  
  .hero-stats {
    flex-direction: column;
    gap: var(--space-lg);
    align-items: center;
  }
  
  .pricing-grid {
    grid-template-columns: 1fr;
  }
  
  .solution-grid {
    grid-template-columns: 1fr;
  }
  
  .solutions-tabs {
    flex-direction: column;
    align-items: center;
  }
  
  .cta-buttons {
    flex-direction: column;
  }
  
  .cta-title {
    font-size: 1.5rem;
  }
}