/* ===== 关于力天频道 ===== */

/* 企业简介摘要 */
.about-summary {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-2xl);
  align-items: start;
}

.about-summary-text h2 {
  font-size: var(--font-size-2xl);
  font-weight: 700;
  margin-bottom: var(--spacing-lg);
}

.about-summary-text p {
  color: var(--color-gray-600);
  line-height: 1.8;
  margin-bottom: var(--spacing-md);
}

.about-summary-highlights {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--spacing-md);
  margin-top: var(--spacing-xl);
}

.about-highlight {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
  padding: var(--spacing-md);
  background: var(--color-gray-50);
  border-radius: var(--border-radius-md);
  transition: all var(--transition-base);
}

.about-highlight:hover {
  background: rgba(0,212,170,0.05);
}

.about-highlight .highlight-icon {
  width: 40px;
  height: 40px;
  border-radius: var(--border-radius-sm);
  background: linear-gradient(135deg, rgba(0,212,170,0.15), rgba(0,212,170,0.05));
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  color: var(--color-cyan);
}

.about-highlight h4 {
  font-size: var(--font-size-sm);
  font-weight: 600;
  line-height: 1.4;
}

.about-highlight p {
  font-size: var(--font-size-xs);
  color: var(--color-gray-500);
  margin: 0;
}

/* 里程碑时间轴 - 首页横向 */
.milestone-timeline {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: var(--spacing-md);
  position: relative;
}

.milestone-timeline::before {
  content: '';
  position: absolute;
  top: 24px;
  left: 10%;
  right: 10%;
  height: 2px;
  background: linear-gradient(90deg, var(--color-cyan), var(--color-orange));
}

.milestone-item {
  text-align: center;
  position: relative;
  padding-top: 48px;
}

.milestone-item::before {
  content: '';
  position: absolute;
  top: 17px;
  left: 50%;
  transform: translateX(-50%);
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--color-cyan);
  border: 3px solid var(--color-white);
  box-shadow: 0 0 0 3px var(--color-cyan);
  z-index: 1;
}

.milestone-item .milestone-year {
  font-size: var(--font-size-lg);
  font-weight: 700;
  color: var(--color-cyan);
  margin-bottom: var(--spacing-xs);
}

.milestone-item h4 {
  font-size: var(--font-size-sm);
  font-weight: 600;
  margin-bottom: 4px;
}

.milestone-item p {
  font-size: var(--font-size-xs);
  color: var(--color-gray-500);
  line-height: 1.5;
}

/* 联系我们卡片 */
.contact-cards {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--spacing-xl);
}

.contact-card {
  background: var(--color-white);
  border: 1px solid var(--color-gray-200);
  border-radius: var(--border-radius-lg);
  padding: var(--spacing-2xl);
  transition: all var(--transition-base);
}

.contact-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-xl);
  border-color: var(--color-cyan);
}

.contact-card .contact-icon {
  width: 56px;
  height: 56px;
  border-radius: var(--border-radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--spacing-lg);
}

.contact-card h3 {
  font-size: var(--font-size-xl);
  font-weight: 600;
  margin-bottom: var(--spacing-md);
}

.contact-card p {
  color: var(--color-gray-600);
  line-height: 1.7;
  font-size: var(--font-size-sm);
}

.contact-card .contact-value {
  font-size: var(--font-size-lg);
  font-weight: 600;
  color: var(--color-cyan);
}

/* 在线留言表单 */
.message-form {
  max-width: 600px;
  margin: 0 auto;
  background: var(--color-white);
  border: 1px solid var(--color-gray-200);
  border-radius: var(--border-radius-xl);
  padding: var(--spacing-2xl);
}

.message-form h3 {
  font-size: var(--font-size-xl);
  font-weight: 600;
  margin-bottom: var(--spacing-xl);
  text-align: center;
}

/* 企业文化 */
.culture-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--spacing-xl);
}

.culture-card {
  background: var(--color-white);
  border: 1px solid var(--color-gray-200);
  border-radius: var(--border-radius-lg);
  padding: var(--spacing-2xl);
  text-align: center;
  transition: all var(--transition-base);
  border-top: 3px solid var(--color-cyan);
}

.culture-card:nth-child(2) {
  border-top-color: var(--color-orange);
}

.culture-card:nth-child(3) {
  border-top-color: var(--color-ai);
}

.culture-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-xl);
}

.culture-card .culture-label {
  display: inline-block;
  padding: 4px 16px;
  border-radius: var(--border-radius-full);
  font-size: var(--font-size-xs);
  font-weight: 600;
  margin-bottom: var(--spacing-md);
}

.culture-card:nth-child(1) .culture-label {
  background: rgba(0,212,170,0.1);
  color: var(--color-cyan);
}

.culture-card:nth-child(2) .culture-label {
  background: rgba(255,107,53,0.1);
  color: var(--color-orange);
}

.culture-card:nth-child(3) .culture-label {
  background: rgba(124,58,237,0.1);
  color: var(--color-ai);
}

.culture-card h3 {
  font-size: var(--font-size-lg);
  font-weight: 600;
  margin-bottom: var(--spacing-md);
}

.culture-card p {
  color: var(--color-gray-500);
  font-size: var(--font-size-sm);
  line-height: 1.7;
}

/* 团队规模 */
.team-stats {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--spacing-xl);
}

.team-stat {
  background: var(--color-gray-50);
  border-radius: var(--border-radius-lg);
  padding: var(--spacing-2xl);
  text-align: center;
}

.team-stat .stat-value {
  font-size: var(--font-size-4xl);
  font-weight: 700;
  color: var(--color-cyan);
  line-height: 1;
  margin-bottom: var(--spacing-sm);
}

.team-stat .stat-label {
  font-size: var(--font-size-sm);
  color: var(--color-gray-500);
}

/* 垂直时间轴 - 发展历程页 */
.history-timeline {
  max-width: 800px;
  margin: 0 auto;
  position: relative;
  padding-left: 60px;
}

.history-timeline::before {
  content: '';
  position: absolute;
  left: 28px;
  top: 0;
  bottom: 0;
  width: 2px;
  background: linear-gradient(to bottom, var(--color-cyan), var(--color-orange), var(--color-ai));
}

.history-item {
  position: relative;
  padding-bottom: var(--spacing-3xl);
  padding-left: var(--spacing-xl);
}

.history-item::before {
  content: '';
  position: absolute;
  left: -44px;
  top: 6px;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: var(--color-cyan);
  border: 3px solid var(--color-white);
  box-shadow: 0 0 0 4px rgba(0,212,170,0.3);
  z-index: 1;
}

.history-item:nth-child(2)::before { background: var(--color-cyan); box-shadow: 0 0 0 4px rgba(0,212,170,0.3); }
.history-item:nth-child(3)::before { background: var(--color-orange); box-shadow: 0 0 0 4px rgba(255,107,53,0.3); }
.history-item:nth-child(4)::before { background: var(--color-orange); box-shadow: 0 0 0 4px rgba(255,107,53,0.3); }
.history-item:nth-child(5)::before { background: var(--color-ai); box-shadow: 0 0 0 4px rgba(124,58,237,0.3); }
.history-item:nth-child(6)::before { background: var(--color-cyan); box-shadow: 0 0 0 4px rgba(0,212,170,0.3); }

.history-item .history-year {
  font-size: var(--font-size-2xl);
  font-weight: 700;
  color: var(--color-cyan);
  margin-bottom: var(--spacing-xs);
}

.history-item:nth-child(3) .history-year { color: var(--color-orange); }
.history-item:nth-child(4) .history-year { color: var(--color-orange); }
.history-item:nth-child(5) .history-year { color: var(--color-ai); }

.history-item .history-tag {
  display: inline-block;
  padding: 4px 12px;
  border-radius: var(--border-radius-full);
  font-size: var(--font-size-xs);
  font-weight: 600;
  margin-bottom: var(--spacing-md);
  background: rgba(0,212,170,0.1);
  color: var(--color-cyan);
}

.history-item:nth-child(3) .history-tag { background: rgba(255,107,53,0.1); color: var(--color-orange); }
.history-item:nth-child(4) .history-tag { background: rgba(255,107,53,0.1); color: var(--color-orange); }
.history-item:nth-child(5) .history-tag { background: rgba(124,58,237,0.1); color: var(--color-ai); }
.history-item:nth-child(6) .history-tag { background: rgba(0,212,170,0.1); color: var(--color-cyan); }

.history-item h3 {
  font-size: var(--font-size-xl);
  font-weight: 600;
  margin-bottom: var(--spacing-sm);
}

.history-item p {
  color: var(--color-gray-600);
  line-height: 1.8;
}

/* 联系信息详情 */
.contact-info-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--spacing-xl);
}

.contact-info-card {
  display: flex;
  align-items: flex-start;
  gap: var(--spacing-lg);
  padding: var(--spacing-xl);
  background: var(--color-gray-50);
  border-radius: var(--border-radius-lg);
  transition: all var(--transition-base);
}

.contact-info-card:hover {
  background: rgba(0,212,170,0.05);
  transform: translateY(-2px);
}

.contact-info-card .info-icon {
  width: 48px;
  height: 48px;
  border-radius: var(--border-radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.contact-info-card h4 {
  font-size: var(--font-size-base);
  font-weight: 600;
  margin-bottom: 4px;
}

.contact-info-card p {
  font-size: var(--font-size-sm);
  color: var(--color-gray-500);
  line-height: 1.6;
}

.contact-info-card .info-value {
  color: var(--color-cyan);
  font-weight: 600;
}

/* 地图示意 */
.map-placeholder {
  background: var(--color-gray-50);
  border: 1px solid var(--color-gray-200);
  border-radius: var(--border-radius-lg);
  padding: var(--spacing-2xl);
  text-align: center;
  min-height: 300px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.map-placeholder svg {
  max-width: 100%;
  height: auto;
}

/* 联系表单 */
.contact-form {
  max-width: 720px;
  margin: 0 auto;
  background: var(--color-white);
  border: 1px solid var(--color-gray-200);
  border-radius: var(--border-radius-xl);
  padding: var(--spacing-3xl);
}

.contact-form h2 {
  font-size: var(--font-size-2xl);
  font-weight: 700;
  margin-bottom: var(--spacing-sm);
  text-align: center;
}

.contact-form .form-subtitle {
  text-align: center;
  color: var(--color-gray-500);
  margin-bottom: var(--spacing-2xl);
}

.contact-form .form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-lg);
}

/* 提交成功提示 */
.form-success {
  display: none;
  text-align: center;
  padding: var(--spacing-3xl);
}

.form-success.show {
  display: block;
}

.form-success .success-icon {
  width: 64px;
  height: 64px;
  border-radius: 50%;
  background: rgba(16,185,129,0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto var(--spacing-lg);
  color: var(--color-success);
}

.form-success h3 {
  font-size: var(--font-size-xl);
  font-weight: 600;
  margin-bottom: var(--spacing-sm);
}

.form-success p {
  color: var(--color-gray-500);
}

/* ===== 响应式 ===== */
@media (max-width: 1024px) {
  .about-summary {
    grid-template-columns: 1fr;
  }
  .milestone-timeline {
    grid-template-columns: repeat(3, 1fr);
  }
  .milestone-timeline::before {
    display: none;
  }
  .culture-grid {
    grid-template-columns: 1fr;
  }
  .contact-info-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) {
  .about-summary-highlights {
    grid-template-columns: 1fr;
  }
  .milestone-timeline {
    grid-template-columns: 1fr;
  }
  .milestone-item {
    padding-top: 36px;
    text-align: left;
    padding-left: 32px;
  }
  .milestone-item::before {
    left: 0;
  }
  .contact-cards {
    grid-template-columns: 1fr;
  }
  .team-stats {
    grid-template-columns: 1fr;
  }
  .contact-form .form-row {
    grid-template-columns: 1fr;
  }
  .contact-form {
    padding: var(--spacing-xl);
  }
  .history-timeline {
    padding-left: 40px;
  }
  .history-item {
    padding-left: var(--spacing-md);
  }
  .history-item::before {
    left: -32px;
  }
}