/* 
 * 关于我们页面样式
 * About Us Page Styles
 */

/* ========================================
   页面标题区域
   ======================================== */

.page-header {
  padding: 120px 0 80px;
  background: linear-gradient(135deg, var(--color-background) 0%, var(--color-background-light) 50%, var(--color-background) 100%);
  position: relative;
  overflow: hidden;
}

.page-header::before {
  content: '';
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 800px;
  height: 800px;
  background: radial-gradient(circle, rgba(91, 110, 245, 0.1) 0%, transparent 70%);
  pointer-events: none;
}

.page-title {
  font-size: 48px;
  font-weight: 700;
  text-align: center;
  margin-bottom: var(--spacing-sm);
  background: linear-gradient(135deg, var(--color-primary-light) 0%, var(--color-secondary) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.page-subtitle {
  font-size: 18px;
  text-align: center;
  color: var(--color-text-secondary);
}

/* ========================================
   公司简介区域
   ======================================== */

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

.company-intro-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;
}

.intro-content {
  display: grid;
  grid-template-columns: 1.5fr 1fr;
  gap: var(--spacing-xxl);
  margin-bottom: var(--spacing-xxl);
}

.section-title-left {
  font-size: var(--font-size-h2);
  color: var(--color-text-primary);
  margin-bottom: var(--spacing-lg);
  position: relative;
  padding-left: var(--spacing-md);
}

.section-title-left::before {
  content: '';
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 4px;
  height: 80%;
  background: linear-gradient(180deg, var(--color-primary), var(--color-secondary));
  border-radius: 2px;
  box-shadow: 0 0 10px rgba(91, 110, 245, 0.5);
}

.intro-description p {
  color: var(--color-text-secondary);
  line-height: 1.8;
  margin-bottom: var(--spacing-md);
  font-size: var(--font-size-base);
}

.intro-image {
  display: flex;
  align-items: center;
  justify-content: center;
}

.intro-image-placeholder {
  width: 100%;
  height: 400px;
  background: var(--color-background-card);
  border: 2px dashed var(--color-border);
  border-radius: var(--border-radius-md);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-md);
  transition: all var(--transition-base);
}

.intro-image-placeholder:hover {
  border-color: var(--color-primary);
  box-shadow: var(--shadow-glow);
}

.intro-image-placeholder svg {
  width: 80px;
  height: 80px;
  color: var(--color-primary);
  opacity: 0.5;
}

.intro-image-placeholder p {
  color: var(--color-text-muted);
  font-size: var(--font-size-small);
}

/* 发展历程 */
.timeline-section {
  margin-bottom: var(--spacing-xxl);
}

.subsection-title {
  font-size: 24px;
  color: var(--color-text-primary);
  margin-bottom: var(--spacing-xl);
  text-align: center;
}

.timeline {
  position: relative;
  padding: var(--spacing-lg) 0;
}

.timeline::before {
  content: '';
  position: absolute;
  left: 50%;
  top: 0;
  bottom: 0;
  width: 2px;
  background: linear-gradient(180deg, transparent, var(--color-primary), transparent);
  transform: translateX(-50%);
}

.timeline-item {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  gap: var(--spacing-lg);
  margin-bottom: var(--spacing-xl);
  position: relative;
}

.timeline-item:nth-child(odd) .timeline-content {
  grid-column: 1;
  text-align: right;
}

.timeline-item:nth-child(even) .timeline-content {
  grid-column: 3;
  text-align: left;
}

.timeline-marker {
  grid-column: 2;
  width: 16px;
  height: 16px;
  background: var(--color-primary);
  border-radius: 50%;
  box-shadow: 0 0 0 4px var(--color-background-card), 0 0 20px rgba(91, 110, 245, 0.5);
  position: relative;
  z-index: 1;
}

.timeline-content {
  background: var(--color-background-card);
  padding: var(--spacing-lg);
  border-radius: var(--border-radius-md);
  border: 1px solid var(--color-border);
  transition: all var(--transition-base);
}

.timeline-content:hover {
  border-color: var(--color-primary);
  box-shadow: var(--shadow-glow);
  transform: translateY(-4px);
}

.timeline-year {
  display: inline-block;
  font-size: 14px;
  font-weight: 600;
  color: var(--color-primary-light);
  background: rgba(91, 110, 245, 0.1);
  padding: 4px 12px;
  border-radius: 12px;
  margin-bottom: var(--spacing-sm);
}

.timeline-content h4 {
  font-size: 18px;
  color: var(--color-text-primary);
  margin-bottom: var(--spacing-xs);
}

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

/* 愿景使命 */
.vision-mission {
  margin-bottom: var(--spacing-xxl);
}

.vision-card {
  text-align: center;
  padding: var(--spacing-xl);
  position: relative;
  overflow: hidden;
}

.vision-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;
}

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

.vision-icon {
  width: 80px;
  height: 80px;
  margin: 0 auto var(--spacing-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, rgba(91, 110, 245, 0.1), rgba(0, 212, 255, 0.1));
  border-radius: 50%;
  transition: all var(--transition-base);
}

.vision-card:hover .vision-icon {
  transform: scale(1.1) rotate(5deg);
  box-shadow: var(--shadow-glow);
}

.vision-icon svg {
  width: 40px;
  height: 40px;
  color: var(--color-primary);
}

.vision-card h3 {
  font-size: 20px;
  color: var(--color-text-primary);
  margin-bottom: var(--spacing-md);
}

.vision-card p {
  color: var(--color-text-secondary);
  line-height: 1.8;
  font-size: 15px;
}

/* 核心价值观 */
.values-section {
  margin-bottom: var(--spacing-xxl);
}

.values-grid {
  gap: var(--spacing-lg);
}

.value-item {
  text-align: center;
  padding: var(--spacing-lg);
  background: var(--color-background-card);
  border-radius: var(--border-radius-md);
  border: 1px solid var(--color-border);
  transition: all var(--transition-base);
}

.value-item:hover {
  border-color: var(--color-primary);
  box-shadow: var(--shadow-glow);
  transform: translateY(-4px);
}

.value-icon {
  width: 60px;
  height: 60px;
  margin: 0 auto var(--spacing-md);
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(91, 110, 245, 0.1);
  border-radius: 50%;
  transition: all var(--transition-base);
}

.value-item:hover .value-icon {
  transform: scale(1.1);
  background: rgba(91, 110, 245, 0.2);
}

.value-icon svg {
  width: 30px;
  height: 30px;
  color: var(--color-primary);
}

.value-item h4 {
  font-size: 16px;
  color: var(--color-text-primary);
  margin-bottom: var(--spacing-xs);
}

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

/* ========================================
   团队实力区域
   ======================================== */

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

.team-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;
}

.team-grid {
  margin-bottom: var(--spacing-xxl);
}

.team-card {
  padding: var(--spacing-xl);
}

.team-card-icon {
  width: 80px;
  height: 80px;
  margin-bottom: var(--spacing-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, rgba(91, 110, 245, 0.1), rgba(0, 212, 255, 0.1));
  border-radius: var(--border-radius-md);
  transition: all var(--transition-base);
}

.team-card:hover .team-card-icon {
  transform: scale(1.05) rotate(3deg);
  box-shadow: var(--shadow-glow);
}

.team-card-icon svg {
  width: 40px;
  height: 40px;
  color: var(--color-primary);
}

.team-card h3 {
  font-size: 22px;
  color: var(--color-text-primary);
  margin-bottom: var(--spacing-lg);
}

.team-stats {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--spacing-md);
  margin-bottom: var(--spacing-lg);
  padding: var(--spacing-lg);
  background: rgba(91, 110, 245, 0.05);
  border-radius: var(--border-radius-md);
  border: 1px solid rgba(91, 110, 245, 0.1);
}

.team-stat-item {
  text-align: center;
}

.team-stat-number {
  font-size: 32px;
  font-weight: 700;
  background: linear-gradient(135deg, var(--color-primary-light) 0%, var(--color-secondary) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: var(--spacing-xs);
}

.team-stat-label {
  font-size: 14px;
  color: var(--color-text-secondary);
}

.team-features {
  list-style: none;
  padding: 0;
}

.team-features li {
  color: var(--color-text-secondary);
  font-size: 15px;
  line-height: 1.8;
  padding-left: var(--spacing-md);
  position: relative;
  margin-bottom: var(--spacing-sm);
}

.team-features li::before {
  content: '✓';
  position: absolute;
  left: 0;
  color: var(--color-primary);
  font-weight: 700;
}

/* 资质认证 */
.certifications-section {
  margin-top: var(--spacing-xxl);
}

.certifications-grid {
  gap: var(--spacing-lg);
}

.certification-item {
  text-align: center;
  padding: var(--spacing-lg);
  background: var(--color-background-card);
  border-radius: var(--border-radius-md);
  border: 1px solid var(--color-border);
  transition: all var(--transition-base);
}

.certification-item:hover {
  border-color: var(--color-primary);
  box-shadow: var(--shadow-glow);
  transform: translateY(-4px);
}

.certification-icon {
  width: 60px;
  height: 60px;
  margin: 0 auto var(--spacing-md);
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(91, 110, 245, 0.1);
  border-radius: 50%;
  transition: all var(--transition-base);
}

.certification-item:hover .certification-icon {
  transform: scale(1.1);
  background: rgba(91, 110, 245, 0.2);
}

.certification-icon svg {
  width: 30px;
  height: 30px;
  color: var(--color-primary);
}

.certification-item h4 {
  font-size: 16px;
  color: var(--color-text-primary);
  margin-bottom: var(--spacing-xs);
}

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

/* ========================================
   企业文化区域
   ======================================== */

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

.culture-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;
}

.culture-content {
  margin-bottom: var(--spacing-xxl);
}

.culture-text {
  margin-bottom: var(--spacing-xl);
}

.culture-text h3 {
  font-size: 24px;
  color: var(--color-text-primary);
  margin-bottom: var(--spacing-md);
}

.culture-text p {
  color: var(--color-text-secondary);
  line-height: 1.8;
  margin-bottom: var(--spacing-md);
  font-size: var(--font-size-base);
}

.culture-grid {
  gap: var(--spacing-md);
}

.culture-image-item {
  aspect-ratio: 4/3;
}

.culture-image-placeholder {
  width: 100%;
  height: 100%;
  background: var(--color-background-card);
  border: 2px dashed var(--color-border);
  border-radius: var(--border-radius-md);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-sm);
  transition: all var(--transition-base);
}

.culture-image-placeholder:hover {
  border-color: var(--color-primary);
  box-shadow: var(--shadow-glow);
}

.culture-image-placeholder svg {
  width: 48px;
  height: 48px;
  color: var(--color-primary);
  opacity: 0.5;
}

.culture-image-placeholder p {
  color: var(--color-text-muted);
  font-size: var(--font-size-small);
}

/* 团队活动 */
.activities-section {
  margin-top: var(--spacing-xxl);
}

.activities-grid {
  gap: var(--spacing-lg);
}

.activity-card {
  text-align: center;
  padding: var(--spacing-xl);
}

.activity-icon {
  width: 70px;
  height: 70px;
  margin: 0 auto var(--spacing-md);
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, rgba(91, 110, 245, 0.1), rgba(0, 212, 255, 0.1));
  border-radius: 50%;
  transition: all var(--transition-base);
}

.activity-card:hover .activity-icon {
  transform: scale(1.1) rotate(5deg);
  box-shadow: var(--shadow-glow);
}

.activity-icon svg {
  width: 35px;
  height: 35px;
  color: var(--color-primary);
}

.activity-card h4 {
  font-size: 18px;
  color: var(--color-text-primary);
  margin-bottom: var(--spacing-sm);
}

.activity-card p {
  color: var(--color-text-secondary);
  line-height: 1.8;
  font-size: 15px;
}

/* ========================================
   CTA区域
   ======================================== */

.cta-section {
  background: linear-gradient(135deg, var(--color-background-light) 0%, var(--color-background) 100%);
  position: relative;
  overflow: hidden;
}

.cta-section::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(91, 110, 245, 0.15) 0%, transparent 70%);
  pointer-events: none;
}

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

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

.cta-content h2 {
  font-size: 36px;
  color: var(--color-text-primary);
  margin-bottom: var(--spacing-md);
}

.cta-content p {
  font-size: 18px;
  color: var(--color-text-secondary);
  margin-bottom: var(--spacing-xl);
}

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

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

@media screen and (max-width: 1024px) {
  .intro-content {
    grid-template-columns: 1fr;
    gap: var(--spacing-xl);
  }
  
  .intro-image-placeholder {
    height: 300px;
  }
  
  .timeline::before {
    left: 20px;
  }
  
  .timeline-item {
    grid-template-columns: auto 1fr;
    gap: var(--spacing-md);
  }
  
  .timeline-item:nth-child(odd) .timeline-content,
  .timeline-item:nth-child(even) .timeline-content {
    grid-column: 2;
    text-align: left;
  }
  
  .timeline-marker {
    grid-column: 1;
  }
  
  .team-grid {
    grid-template-columns: 1fr;
  }
  
  .values-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .certifications-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .activities-grid {
    grid-template-columns: 1fr;
  }
}

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

@media screen and (max-width: 768px) {
  .page-header {
    padding: 100px 0 60px;
  }
  
  .page-title {
    font-size: 32px;
  }
  
  .page-subtitle {
    font-size: 16px;
  }
  
  .section-title-left {
    font-size: var(--font-size-h2-mobile);
  }
  
  .intro-description p {
    font-size: var(--font-size-base-mobile);
  }
  
  .intro-image-placeholder {
    height: 250px;
  }
  
  .intro-image-placeholder svg {
    width: 60px;
    height: 60px;
  }
  
  .timeline::before {
    left: 8px;
  }
  
  .timeline-item {
    gap: var(--spacing-sm);
  }
  
  .timeline-marker {
    width: 12px;
    height: 12px;
  }
  
  .timeline-content {
    padding: var(--spacing-md);
  }
  
  .timeline-content h4 {
    font-size: 16px;
  }
  
  .timeline-content p {
    font-size: 13px;
  }
  
  .vision-card {
    padding: var(--spacing-lg);
  }
  
  .vision-icon {
    width: 60px;
    height: 60px;
  }
  
  .vision-icon svg {
    width: 30px;
    height: 30px;
  }
  
  .vision-card h3 {
    font-size: 18px;
  }
  
  .vision-card p {
    font-size: 14px;
  }
  
  .values-grid {
    grid-template-columns: 1fr;
  }
  
  .team-card {
    padding: var(--spacing-lg);
  }
  
  .team-card-icon {
    width: 60px;
    height: 60px;
  }
  
  .team-card-icon svg {
    width: 30px;
    height: 30px;
  }
  
  .team-card h3 {
    font-size: 20px;
  }
  
  .team-stat-number {
    font-size: 24px;
  }
  
  .team-features li {
    font-size: 14px;
  }
  
  .certifications-grid {
    grid-template-columns: 1fr;
  }
  
  .culture-grid {
    grid-template-columns: 1fr;
  }
  
  .culture-text h3 {
    font-size: 20px;
  }
  
  .culture-text p {
    font-size: var(--font-size-base-mobile);
  }
  
  .activity-card {
    padding: var(--spacing-lg);
  }
  
  .activity-icon {
    width: 60px;
    height: 60px;
  }
  
  .activity-icon svg {
    width: 30px;
    height: 30px;
  }
  
  .activity-card h4 {
    font-size: 16px;
  }
  
  .activity-card p {
    font-size: 14px;
  }
  
  .cta-content h2 {
    font-size: 28px;
  }
  
  .cta-content p {
    font-size: 16px;
  }
  
  .cta-buttons {
    flex-direction: column;
    align-items: stretch;
  }
  
  .cta-buttons .btn {
    width: 100%;
  }
}