/* 关于我们页面样式 */

.about-hero {
  padding: 8rem 0 4rem;
  background: 
    radial-gradient(circle at 20% 80%, rgba(6, 182, 212, 0.1) 0%, transparent 50%),
    radial-gradient(circle at 80% 20%, rgba(139, 92, 246, 0.1) 0%, transparent 50%);
}

.about-header {
  text-align: center;
  max-width: 800px;
  margin: 0 auto;
}

.about-header h1 {
  font-size: 3.5rem;
  font-weight: 800;
  color: white;
  margin-bottom: 1.5rem;
  background: linear-gradient(135deg, #06b6d4, #8b5cf6);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.about-subtitle {
  font-size: 1.25rem;
  color: #9ca3af;
  line-height: 1.6;
}

/* 公司介绍部分 */
.company-intro {
  padding: 6rem 0;
}

.intro-content {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 4rem;
  align-items: start;
}

.intro-text {
  color: white;
}

.intro-text h2 {
  font-size: 2.5rem;
  font-weight: 700;
  margin-bottom: 2rem;
  background: linear-gradient(135deg, #06b6d4, #8b5cf6);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.intro-text h3 {
  font-size: 1.5rem;
  font-weight: 600;
  color: #06b6d4;
  margin: 3rem 0 1.5rem 0;
}

.intro-text p {
  font-size: 1.1rem;
  line-height: 1.8;
  color: #e5e7eb;
  margin-bottom: 2rem;
}

.intro-text ul {
  list-style: none;
  padding: 0;
}

.intro-text ul li {
  font-size: 1rem;
  line-height: 1.8;
  color: #e5e7eb;
  margin-bottom: 1rem;
  padding-left: 1.5rem;
  position: relative;
}

.intro-text ul li::before {
  content: '✓';
  position: absolute;
  left: 0;
  color: #06b6d4;
  font-weight: bold;
  font-size: 1.1rem;
}

.intro-text ul li strong {
  color: #06b6d4;
  font-weight: 600;
}

/* 公司信息卡片 */
.company-info-card {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 1.5rem;
  padding: 2.5rem;
  backdrop-filter: blur(10px);
  position: sticky;
  top: 2rem;
}

.company-info-card h3 {
  font-size: 1.5rem;
  font-weight: 700;
  color: white;
  margin-bottom: 2rem;
  text-align: center;
  padding-bottom: 1rem;
  border-bottom: 2px solid #06b6d4;
}

.info-item {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  margin-bottom: 2rem;
  padding: 1.5rem;
  background: rgba(255, 255, 255, 0.03);
  border-radius: 0.75rem;
  border: 1px solid rgba(255, 255, 255, 0.1);
  transition: all 0.3s ease;
}

.info-item:hover {
  background: rgba(6, 182, 212, 0.1);
  border-color: rgba(6, 182, 212, 0.3);
  transform: translateY(-2px);
}

.info-item:last-child {
  margin-bottom: 0;
}

.info-item .icon {
  width: 1.5rem;
  height: 1.5rem;
  color: #06b6d4;
  flex-shrink: 0;
  margin-top: 0.25rem;
}

.info-item strong {
  display: block;
  color: white;
  font-weight: 600;
  margin-bottom: 0.5rem;
  font-size: 1rem;
}

.info-item p {
  color: #9ca3af;
  margin: 0;
  line-height: 1.6;
  font-size: 0.95rem;
}

/* 优势部分 */
.advantages-section {
  padding: 6rem 0;
  background: rgba(255, 255, 255, 0.02);
}

.advantages-section h2 {
  font-size: 2.5rem;
  font-weight: 700;
  color: white;
  text-align: center;
  margin-bottom: 4rem;
  background: linear-gradient(135deg, #06b6d4, #8b5cf6);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.advantages-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 2rem;
}

.advantage-card {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 1.5rem;
  padding: 2.5rem;
  text-align: center;
  transition: all 0.3s ease;
  backdrop-filter: blur(10px);
}

.advantage-card:hover {
  transform: translateY(-10px);
  border-color: #06b6d4;
  box-shadow: 0 20px 60px rgba(6, 182, 212, 0.2);
}

.advantage-icon {
  width: 4rem;
  height: 4rem;
  background: linear-gradient(135deg, #06b6d4, #8b5cf6);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 2rem;
  box-shadow: 0 0 30px rgba(6, 182, 212, 0.3);
}

.advantage-icon .icon {
  width: 2rem;
  height: 2rem;
  color: white;
}

.advantage-card h3 {
  font-size: 1.5rem;
  font-weight: 600;
  color: white;
  margin-bottom: 1rem;
}

.advantage-card p {
  color: #9ca3af;
  line-height: 1.6;
  font-size: 1rem;
}

/* 技术栈部分 */
.tech-stack-section {
  padding: 6rem 0;
}

.tech-stack-section h2 {
  font-size: 2.5rem;
  font-weight: 700;
  color: white;
  text-align: center;
  margin-bottom: 4rem;
  background: linear-gradient(135deg, #06b6d4, #8b5cf6);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.tech-categories {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2.5rem;
}

.tech-category {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 1.5rem;
  padding: 2.5rem;
  backdrop-filter: blur(10px);
  transition: all 0.3s ease;
}

.tech-category:hover {
  transform: translateY(-5px);
  border-color: #8b5cf6;
  box-shadow: 0 15px 40px rgba(139, 92, 246, 0.2);
}

.tech-category h3 {
  font-size: 1.25rem;
  font-weight: 600;
  color: white;
  margin-bottom: 1.5rem;
  padding-bottom: 0.75rem;
  border-bottom: 2px solid #8b5cf6;
}

.tech-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.tech-tag {
  padding: 0.5rem 1rem;
  background: rgba(139, 92, 246, 0.2);
  border: 1px solid rgba(139, 92, 246, 0.4);
  border-radius: 2rem;
  color: white;
  font-size: 0.875rem;
  font-weight: 500;
  transition: all 0.2s ease;
}

.tech-tag:hover {
  background: rgba(139, 92, 246, 0.4);
  transform: translateY(-2px);
}

/* 联系CTA部分 */
.contact-cta {
  padding: 6rem 0;
  background: 
    radial-gradient(circle at 20% 80%, rgba(6, 182, 212, 0.1) 0%, transparent 50%),
    radial-gradient(circle at 80% 20%, rgba(139, 92, 246, 0.1) 0%, transparent 50%);
}

.cta-content {
  text-align: center;
  max-width: 600px;
  margin: 0 auto;
}

.cta-content h2 {
  font-size: 2.5rem;
  font-weight: 700;
  color: white;
  margin-bottom: 1.5rem;
}

.cta-content p {
  font-size: 1.25rem;
  color: #9ca3af;
  line-height: 1.6;
  margin-bottom: 3rem;
}

.cta-buttons {
  display: flex;
  gap: 1.5rem;
  justify-content: center;
  flex-wrap: wrap;
}

.btn {
  padding: 1rem 2rem;
  border-radius: 0.75rem;
  font-size: 1rem;
  font-weight: 600;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  transition: all 0.3s ease;
  border: none;
  cursor: pointer;
}

.btn-primary {
  background: linear-gradient(135deg, #06b6d4, #3b82f6);
  color: white;
  box-shadow: 0 4px 15px rgba(6, 182, 212, 0.3);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(6, 182, 212, 0.4);
}

.btn-secondary {
  background: rgba(255, 255, 255, 0.1);
  color: white;
  border: 1px solid rgba(255, 255, 255, 0.2);
}

.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.2);
  transform: translateY(-2px);
}

.btn .icon {
  width: 1.25rem;
  height: 1.25rem;
}

/* 响应式设计 */
@media (max-width: 1024px) {
  .intro-content {
    grid-template-columns: 1fr;
    gap: 3rem;
  }
  
  .company-info-card {
    position: static;
  }
}

@media (max-width: 768px) {
  .about-hero {
    padding: 6rem 0 3rem;
  }
  
  .about-header h1 {
    font-size: 2.5rem;
  }
  
  .about-subtitle {
    font-size: 1rem;
  }
  
  .company-intro,
  .advantages-section,
  .tech-stack-section,
  .contact-cta {
    padding: 4rem 0;
  }
  
  .intro-text h2,
  .advantages-section h2,
  .tech-stack-section h2,
  .cta-content h2 {
    font-size: 2rem;
  }
  
  .intro-text h3 {
    font-size: 1.25rem;
  }
  
  .intro-text p {
    font-size: 1rem;
  }
  
  .advantages-grid {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }
  
  .tech-categories {
    grid-template-columns: 1fr;
    gap: 2rem;
  }
  
  .cta-buttons {
    flex-direction: column;
    align-items: center;
  }
  
  .btn {
    width: 100%;
    max-width: 300px;
    justify-content: center;
  }
}

@media (max-width: 480px) {
  .about-header h1 {
    font-size: 2rem;
  }
  
  .company-info-card,
  .advantage-card,
  .tech-category {
    padding: 2rem;
  }
  
  .info-item {
    padding: 1rem;
  }
  
  .cta-content h2 {
    font-size: 1.75rem;
  }
  
  .cta-content p {
    font-size: 1rem;
  }
}