/* 首页特定样式 - Index Page Styles */

/* ==================== Hero 区域样式 ==================== */
.hero-section {
  background: var(--gradient-hero);
  color: var(--text-light);
  padding: var(--spacing-4xl) 0;
  text-align: center;
  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%);
  pointer-events: none;
}

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

.hero-section h1 {
  color: var(--text-light);
  font-size: var(--font-size-5xl);
  font-weight: 800;
  margin-bottom: var(--spacing-lg);
  text-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
  line-height: 1.2;
}

.hero-subtitle {
  font-size: var(--font-size-xl);
  color: rgba(255, 255, 255, 0.95);
  margin-bottom: var(--spacing-2xl);
  font-weight: 400;
  max-width: 800px;
  margin-left: auto;
  margin-right: auto;
}

/* Hero 特性列表 */
.hero-features {
  display: flex;
  justify-content: center;
  gap: var(--spacing-xl);
  margin-bottom: var(--spacing-2xl);
  flex-wrap: wrap;
}

.hero-feature-item {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
  background: rgba(255, 255, 255, 0.2);
  padding: var(--spacing-md) var(--spacing-xl);
  border-radius: var(--radius-full);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.3);
  font-size: var(--font-size-lg);
  font-weight: 600;
  color: var(--text-light);
  transition: all var(--transition-base);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.hero-feature-item:hover {
  background: rgba(255, 255, 255, 0.3);
  border-color: rgba(255, 255, 255, 0.5);
  transform: translateY(-3px);
  box-shadow: 0 6px 16px rgba(0, 0, 0, 0.15);
}

.hero-feature-item .feature-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  font-size: var(--font-size-xl);
  background: rgba(255, 255, 255, 0.25);
  border-radius: var(--radius-full);
  flex-shrink: 0;
}

/* Hero CTA 按钮 */
.hero-section .cta-buttons {
  margin-top: var(--spacing-2xl);
}

.hero-section .btn-primary {
  background: var(--bg-white);
  color: var(--primary-color);
  border-color: var(--bg-white);
}

.hero-section .btn-primary:hover {
  background: var(--primary-lighter);
  color: var(--primary-dark);
  transform: translateY(-2px);
  box-shadow: 0 8px 16px rgba(0, 0, 0, 0.2);
}

.hero-section .btn-secondary {
  background: transparent;
  color: var(--text-light);
  border-color: var(--text-light);
}

.hero-section .btn-secondary:hover {
  background: var(--text-light);
  color: var(--primary-color);
}

/* ==================== 核心优势区域样式 ==================== */
.advantages-section {
  background: var(--bg-white);
}

.advantage-card {
  text-align: center;
  border: 1px solid var(--border-color);
  transition: all var(--transition-base);
  height: 100%;
  display: flex;
  flex-direction: column;
}

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

.advantage-card .card-icon {
  font-size: 48px;
  margin-bottom: var(--spacing-lg);
  display: flex;
  justify-content: center;
  align-items: center;
  width: 80px;
  height: 80px;
  margin-left: auto;
  margin-right: auto;
  background: var(--primary-lighter);
  border-radius: var(--radius-full);
  transition: all var(--transition-base);
}

.advantage-card:hover .card-icon {
  background: var(--primary-color);
  transform: scale(1.1) rotate(5deg);
}

.advantage-card:hover .card-icon span {
  filter: brightness(0) invert(1);
}

.advantage-card .card-title {
  font-size: var(--font-size-xl);
  color: var(--text-primary);
  margin-bottom: var(--spacing-md);
  font-weight: 700;
}

.advantage-card .card-content {
  flex: 1;
  display: flex;
  align-items: center;
}

.advantage-card .card-content p {
  color: var(--text-secondary);
  line-height: var(--line-height-relaxed);
  margin: 0;
}

/* ==================== 功能概览区域样式 ==================== */
.features-overview-section {
  background: var(--bg-light);
}

.section-gray {
  background: var(--bg-light);
}

.feature-overview-card {
  text-align: left;
  border: 1px solid var(--border-color);
  background: var(--bg-white);
  transition: all var(--transition-base);
  height: 100%;
  display: flex;
  flex-direction: column;
}

.feature-overview-card:hover {
  border-color: var(--primary-color);
  box-shadow: var(--shadow-xl);
  transform: translateY(-6px);
}

.feature-overview-card .card-icon {
  font-size: 40px;
  margin-bottom: var(--spacing-md);
  display: flex;
  justify-content: flex-start;
  align-items: center;
  width: 64px;
  height: 64px;
  background: linear-gradient(135deg, var(--primary-lighter) 0%, rgba(30, 136, 229, 0.1) 100%);
  border-radius: var(--radius-lg);
  transition: all var(--transition-base);
}

.feature-overview-card:hover .card-icon {
  background: var(--gradient-primary);
  transform: scale(1.05);
}

.feature-overview-card:hover .card-icon span {
  filter: brightness(0) invert(1);
}

.feature-overview-card .card-title {
  font-size: var(--font-size-xl);
  color: var(--text-primary);
  margin-bottom: var(--spacing-md);
  font-weight: 700;
}

.feature-overview-card .card-content {
  flex: 1;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.feature-overview-card .card-content p {
  color: var(--text-secondary);
  line-height: var(--line-height-relaxed);
  margin-bottom: var(--spacing-md);
}

.feature-overview-card .card-link {
  color: var(--primary-color);
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-xs);
  transition: all var(--transition-fast);
  margin-top: auto;
}

.feature-overview-card .card-link:hover {
  color: var(--primary-dark);
  gap: var(--spacing-sm);
}

/* ==================== 用户评价区域样式 ==================== */
.testimonials-section {
  background: var(--bg-white);
}

.testimonial-card {
  border: 1px solid var(--border-color);
  background: var(--bg-white);
  transition: all var(--transition-base);
  height: 100%;
  display: flex;
  flex-direction: column;
  position: relative;
  overflow: hidden;
}

.testimonial-card::before {
  content: '"';
  position: absolute;
  top: -10px;
  left: 20px;
  font-size: 120px;
  color: var(--primary-lighter);
  font-family: Georgia, serif;
  line-height: 1;
  opacity: 0.5;
  z-index: 0;
}

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

.testimonial-content {
  flex: 1;
  position: relative;
  z-index: 1;
  margin-bottom: var(--spacing-lg);
}

.testimonial-text {
  color: var(--text-primary);
  font-size: var(--font-size-base);
  line-height: var(--line-height-relaxed);
  font-style: italic;
  margin: 0;
}

.testimonial-author {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
  margin-bottom: var(--spacing-md);
  padding-top: var(--spacing-md);
  border-top: 1px solid var(--border-color);
}

.author-info {
  flex: 1;
}

.author-name {
  font-size: var(--font-size-lg);
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: var(--spacing-xs);
}

.author-title {
  font-size: var(--font-size-sm);
  color: var(--text-secondary);
  margin: 0;
}

.testimonial-stats {
  display: flex;
  gap: var(--spacing-sm);
  flex-wrap: wrap;
}

.stat-badge {
  display: inline-block;
  padding: var(--spacing-xs) var(--spacing-md);
  background: var(--primary-lighter);
  color: var(--primary-color);
  border-radius: var(--radius-full);
  font-size: var(--font-size-sm);
  font-weight: 600;
  white-space: nowrap;
}

/* ==================== 响应式样式 ==================== */

/* 平板端 (768px - 1024px) */
@media (max-width: 1024px) {
  .hero-section h1 {
    font-size: var(--font-size-4xl);
  }

  .hero-subtitle {
    font-size: var(--font-size-lg);
  }

  .hero-features {
    gap: var(--spacing-md);
  }

  .hero-feature-item {
    font-size: var(--font-size-base);
    padding: var(--spacing-sm) var(--spacing-lg);
    gap: var(--spacing-sm);
  }

  .hero-feature-item .feature-icon {
    width: 32px;
    height: 32px;
    font-size: var(--font-size-lg);
  }

  .advantage-card .card-icon {
    width: 70px;
    height: 70px;
    font-size: 40px;
  }

  .feature-overview-card .card-icon {
    width: 56px;
    height: 56px;
    font-size: 36px;
  }
}

/* 移动端 (< 768px) */
@media (max-width: 768px) {
  .hero-section {
    padding: var(--spacing-3xl) 0;
  }

  .hero-section h1 {
    font-size: var(--font-size-3xl);
    margin-bottom: var(--spacing-md);
  }

  .hero-subtitle {
    font-size: var(--font-size-base);
    margin-bottom: var(--spacing-xl);
  }

  .hero-features {
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-xl);
  }

  .hero-feature-item {
    width: 100%;
    max-width: 300px;
    justify-content: center;
    font-size: var(--font-size-base);
    padding: var(--spacing-md) var(--spacing-lg);
  }

  .hero-feature-item .feature-icon {
    width: 32px;
    height: 32px;
    font-size: var(--font-size-lg);
  }

  .hero-section .cta-buttons {
    margin-top: var(--spacing-xl);
  }

  /* 核心优势卡片 */
  .advantage-card {
    padding: var(--spacing-lg);
  }

  .advantage-card .card-icon {
    width: 64px;
    height: 64px;
    font-size: 36px;
    margin-bottom: var(--spacing-md);
  }

  .advantage-card .card-title {
    font-size: var(--font-size-lg);
  }

  /* 功能概览卡片 */
  .feature-overview-card {
    padding: var(--spacing-lg);
  }

  .feature-overview-card .card-icon {
    width: 52px;
    height: 52px;
    font-size: 32px;
  }

  .feature-overview-card .card-title {
    font-size: var(--font-size-lg);
  }

  /* 用户评价卡片 */
  .testimonial-card {
    padding: var(--spacing-lg);
  }

  .testimonial-card::before {
    font-size: 80px;
    top: -5px;
    left: 15px;
  }

  .testimonial-text {
    font-size: var(--font-size-sm);
  }

  .author-name {
    font-size: var(--font-size-base);
  }

  .stat-badge {
    font-size: 12px;
    padding: 4px var(--spacing-sm);
  }
}

/* 小屏幕移动端 (< 480px) */
@media (max-width: 480px) {
  .hero-section {
    padding: var(--spacing-2xl) 0;
  }

  .hero-section h1 {
    font-size: var(--font-size-2xl);
  }

  .hero-subtitle {
    font-size: var(--font-size-sm);
  }

  .hero-feature-item {
    font-size: var(--font-size-sm);
    padding: var(--spacing-sm) var(--spacing-md);
  }

  .hero-feature-item .feature-icon {
    width: 28px;
    height: 28px;
    font-size: var(--font-size-base);
  }

  .advantage-card .card-icon {
    width: 56px;
    height: 56px;
    font-size: 32px;
  }

  .feature-overview-card .card-icon {
    width: 48px;
    height: 48px;
    font-size: 28px;
  }

  .testimonial-card::before {
    font-size: 60px;
  }
}

/* 桌面端大屏幕 (> 1024px) */
@media (min-width: 1024px) {
  .hero-section {
    padding: calc(var(--spacing-4xl) + var(--spacing-2xl)) 0;
  }

  .hero-section h1 {
    font-size: var(--font-size-5xl);
  }

  /* 优势卡片悬停效果增强 */
  .advantage-card:hover {
    transform: translateY(-10px);
  }

  .feature-overview-card:hover {
    transform: translateY(-8px);
  }

  .testimonial-card:hover {
    transform: translateY(-8px);
  }
}