/* 
 * 首页样式
 * Homepage Styles
 */

/* ========================================
   Hero区域
   ======================================== */

.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  padding-top: 70px; /* 导航栏高度 */
}

.hero-background {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: 
    radial-gradient(ellipse at 20% 30%, rgba(91, 110, 245, 0.15) 0%, transparent 50%),
    radial-gradient(ellipse at 80% 70%, rgba(0, 212, 255, 0.15) 0%, transparent 50%),
    linear-gradient(135deg, #0a0e1a 0%, #111827 50%, #1a1f35 100%);
  z-index: -1;
}

.hero-background::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-image: 
    repeating-linear-gradient(0deg, transparent, transparent 2px, rgba(91, 110, 245, 0.03) 2px, rgba(91, 110, 245, 0.03) 4px),
    repeating-linear-gradient(90deg, transparent, transparent 2px, rgba(91, 110, 245, 0.03) 2px, rgba(91, 110, 245, 0.03) 4px);
  opacity: 0.5;
}

.hero-content {
  text-align: center;
  color: white;
  max-width: 800px;
  margin: 0 auto;
  opacity: 0;
  animation: fadeInUp 1s ease forwards;
  animation-delay: 0.3s;
}

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.hero-title {
  font-size: var(--font-size-h1);
  font-weight: 700;
  margin-bottom: var(--spacing-md);
  line-height: 1.3;
}

.hero-subtitle {
  font-size: 20px;
  margin-bottom: var(--spacing-xl);
  opacity: 0.95;
  font-weight: 300;
}

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

.hero-buttons .btn-outline {
  background: rgba(91, 110, 245, 0.1);
  border-color: var(--color-primary);
  color: var(--color-primary-light);
  backdrop-filter: blur(10px);
  box-shadow: 0 0 20px rgba(91, 110, 245, 0.2);
}

.hero-buttons .btn-outline:hover {
  background: rgba(91, 110, 245, 0.2);
  border-color: var(--color-primary-light);
  color: white;
  box-shadow: var(--shadow-glow);
}

/* ========================================
   核心优势区域
   ======================================== */

.advantages-section {
  background: var(--color-background);
  position: relative;
}

.advantages-section::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--color-primary), transparent);
  opacity: 0.3;
}

.advantages-grid {
  margin-top: var(--spacing-xl);
}

.advantage-card {
  text-align: center;
  cursor: default;
  background: var(--color-background-card);
  border: 1px solid var(--color-border);
  position: relative;
  overflow: hidden;
}

.advantage-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(91, 110, 245, 0.1), transparent);
  transition: left 0.5s ease;
}

.advantage-card:hover::before {
  left: 100%;
}

.advantage-icon {
  width: 64px;
  height: 64px;
  margin: 0 auto var(--spacing-md);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-base);
}

.advantage-icon svg {
  width: 100%;
  height: 100%;
  stroke: var(--color-primary-light);
  filter: drop-shadow(0 0 10px rgba(91, 110, 245, 0.4));
  transition: all var(--transition-base);
}

.advantage-card:hover .advantage-icon {
  transform: scale(1.1) translateY(-5px);
}

.advantage-card:hover .advantage-icon svg {
  stroke: var(--color-secondary);
  filter: drop-shadow(0 0 20px rgba(0, 212, 255, 0.8));
}

.advantage-card h3 {
  font-size: 20px;
  margin-bottom: var(--spacing-sm);
  color: var(--color-text-primary);
  font-weight: 600;
}

.advantage-card p {
  color: var(--color-text-secondary);
  line-height: 1.6;
}

/* ========================================
   产品矩阵展示区域
   ======================================== */

.products-section {
  background: var(--color-background-light);
  position: relative;
}

.products-section::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--color-secondary), transparent);
  opacity: 0.3;
}

.products-grid {
  margin-top: var(--spacing-xl);
}

.product-card {
  text-align: center;
  cursor: pointer;
  text-decoration: none;
  color: inherit;
  display: block;
  transition: all var(--transition-base);
  background: var(--color-background-card);
  border: 1px solid var(--color-border);
  position: relative;
  overflow: hidden;
}

.product-card::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 3px;
  background: linear-gradient(90deg, var(--color-primary), var(--color-secondary));
  transform: scaleX(0);
  transition: transform var(--transition-base);
}

.product-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-lg), var(--shadow-glow);
  border-color: var(--color-primary);
}

.product-card:hover::after {
  transform: scaleX(1);
}

.product-icon {
  width: 72px;
  height: 72px;
  margin: 0 auto var(--spacing-md);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-base);
}

.product-icon svg {
  width: 100%;
  height: 100%;
  stroke: var(--color-secondary);
  filter: drop-shadow(0 0 10px rgba(0, 212, 255, 0.4));
  transition: all var(--transition-base);
}

.product-card:hover .product-icon {
  transform: scale(1.15) rotate(5deg);
}

.product-card:hover .product-icon svg {
  stroke: var(--color-accent);
  filter: drop-shadow(0 0 25px rgba(0, 245, 255, 0.8));
}

.product-card h3 {
  font-size: 18px;
  margin-bottom: var(--spacing-sm);
  color: var(--color-text-primary);
  font-weight: 600;
}

.product-card p {
  color: var(--color-text-secondary);
  font-size: 14px;
  line-height: 1.6;
}

/* ========================================
   数据展示区域
   ======================================== */

.stats-section {
  background: 
    radial-gradient(ellipse at 50% 50%, rgba(91, 110, 245, 0.2) 0%, transparent 70%),
    linear-gradient(135deg, var(--color-background-card) 0%, var(--color-background-elevated) 100%);
  color: white;
  position: relative;
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
}

.stats-section::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-image: 
    repeating-linear-gradient(0deg, transparent, transparent 40px, rgba(91, 110, 245, 0.05) 40px, rgba(91, 110, 245, 0.05) 41px);
  pointer-events: none;
}

.stats-grid {
  margin-top: var(--spacing-xl);
}

.stat-item {
  text-align: center;
  padding: var(--spacing-lg);
  position: relative;
}

.stat-item::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 120px;
  height: 120px;
  background: radial-gradient(circle, rgba(91, 110, 245, 0.2) 0%, transparent 70%);
  border-radius: 50%;
  z-index: 0;
}

.stat-number {
  font-size: 48px;
  font-weight: 700;
  margin-bottom: var(--spacing-sm);
  background: linear-gradient(135deg, var(--color-primary-light), var(--color-secondary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  position: relative;
  z-index: 1;
  text-shadow: 0 0 30px rgba(91, 110, 245, 0.5);
}

.stat-label {
  font-size: 16px;
  color: var(--color-text-secondary);
  font-weight: 400;
  position: relative;
  z-index: 1;
}

/* ========================================
   客户案例预览区域
   ======================================== */

.clients-section {
  background: var(--color-background);
  position: relative;
}

.clients-section::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--color-primary), transparent);
  opacity: 0.3;
}

.clients-logos {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--spacing-lg);
  margin: var(--spacing-xl) 0;
}

.client-logo-item {
  background: var(--color-background-card);
  padding: var(--spacing-xl);
  border-radius: var(--border-radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 120px;
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-base);
  font-size: 18px;
  font-weight: 500;
  color: var(--color-text-secondary);
  border: 1px solid var(--color-border);
  position: relative;
  overflow: hidden;
}

.client-logo-item::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(135deg, rgba(91, 110, 245, 0.05), rgba(0, 212, 255, 0.05));
  opacity: 0;
  transition: opacity var(--transition-base);
}

.client-logo-item:hover {
  box-shadow: var(--shadow-md), 0 0 20px rgba(91, 110, 245, 0.2);
  transform: translateY(-4px);
  border-color: var(--color-primary);
}

.client-logo-item:hover::before {
  opacity: 1;
}

.clients-cta {
  text-align: center;
  margin-top: var(--spacing-xl);
}

/* ========================================
   响应式 - 平板
   ======================================== */

@media screen and (max-width: 1024px) {
  .hero-title {
    font-size: 32px;
  }
  
  .hero-subtitle {
    font-size: 18px;
  }
  
  .clients-logos {
    grid-template-columns: repeat(3, 1fr);
  }
  
  .stat-number {
    font-size: 40px;
  }
}

/* ========================================
   响应式 - 移动端
   ======================================== */

@media screen and (max-width: 768px) {
  .hero {
    min-height: 80vh;
    padding-top: 60px;
  }
  
  .hero-title {
    font-size: var(--font-size-h1-mobile);
  }
  
  .hero-subtitle {
    font-size: 16px;
    margin-bottom: var(--spacing-lg);
  }
  
  .hero-buttons {
    flex-direction: column;
    gap: var(--spacing-sm);
  }
  
  .hero-buttons .btn {
    width: 100%;
  }
  
  .advantage-icon {
    font-size: 40px;
  }
  
  .product-icon {
    font-size: 48px;
  }
  
  .stat-number {
    font-size: 36px;
  }
  
  .stat-label {
    font-size: 14px;
  }
  
  .clients-logos {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-md);
  }
  
  .client-logo-item {
    padding: var(--spacing-lg);
    min-height: 100px;
    font-size: 16px;
  }
}

/* ========================================
   动画效果
   ======================================== */

.fade-in {
  animation: fadeIn 0.6s ease forwards;
}

@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}