/* about.css — 关于我们页 (A5场景展示结构) */

.about-banner {
  background: linear-gradient(135deg, var(--color-dark) 0%, var(--color-secondary) 100%);
  color: var(--color-white); padding: 100px 0 60px; text-align: center;
}
.about-banner h1 { font-size: 2.5rem; margin-bottom: 12px; }
.about-banner p { font-size: 1.1rem; opacity: 0.9; }

/* 企业简介 */
.about-intro { padding: 60px 0; }
.about-intro-grid {
  display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: center;
}
.about-intro-content h2 {
  font-size: 1.8rem; color: var(--color-dark); margin-bottom: 20px;
}
.about-intro-content p { color: var(--color-text-secondary); line-height: 1.9; margin-bottom: 16px; }

/* 发展历程 */
.timeline { padding: 60px 0; background: var(--color-light-bg); }
.timeline-list { position: relative; max-width: 800px; margin: 0 auto; }
.timeline-list::before {
  content: ""; position: absolute; left: 50%; top: 0; bottom: 0;
  width: 2px; background: var(--color-border); transform: translateX(-50%);
}
.timeline-item {
  display: flex; justify-content: flex-end; padding-right: 50%;
  position: relative; margin-bottom: 40px;
}
.timeline-item:nth-child(even) { justify-content: flex-start; padding-right: 0; padding-left: 50%; }
.timeline-content {
  background: var(--color-white); padding: 24px; border-radius: 12px;
  border: 1px solid var(--color-border); max-width: 360px;
  position: relative; margin-right: 30px;
}
.timeline-item:nth-child(even) .timeline-content { margin-right: 0; margin-left: 30px; }
.timeline-dot {
  position: absolute; left: 50%; top: 24px;
  width: 16px; height: 16px; border-radius: 50%;
  background: var(--color-secondary); border: 3px solid var(--color-white);
  transform: translateX(-50%); z-index: 2;
  box-shadow: 0 0 0 3px var(--color-secondary);
}
.timeline-content h4 { color: var(--color-secondary); font-size: 0.9rem; margin-bottom: 8px; }
.timeline-content h5 { color: var(--color-dark); font-size: 1.1rem; margin-bottom: 8px; }
.timeline-content p { color: var(--color-text-secondary); font-size: 0.9rem; line-height: 1.6; }

/* 资质荣誉 */
.honors { padding: 60px 0; }
.honors-grid {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px;
}
.honor-card {
  text-align: center; padding: 32px 24px;
  background: var(--color-white); border-radius: 14px;
  border: 1px solid var(--color-border); transition: var(--transition);
}
.honor-card:hover {
  border-color: var(--color-secondary);
  box-shadow: 0 8px 25px rgba(149,117,205,0.1);
  transform: translateY(-4px);
}
.honor-icon {
  width: 64px; height: 64px; border-radius: 50%;
  background: var(--color-light-bg); color: var(--color-secondary);
  display: inline-flex; align-items: center; justify-content: center;
  font-size: 1.8rem; margin-bottom: 16px;
}
.honor-card h4 { font-size: 1rem; color: var(--color-dark); margin-bottom: 8px; }
.honor-card p { font-size: 0.85rem; color: var(--color-text-secondary); }

@media (max-width: 768px) {
  .about-banner h1 { font-size: 1.8rem; }
  .about-intro-grid { grid-template-columns: 1fr; gap: 32px; }
  .timeline-list::before { left: 20px; }
  .timeline-item, .timeline-item:nth-child(even) {
    justify-content: flex-start; padding-left: 50px; padding-right: 0;
  }
  .timeline-content { margin-left: 0 !important; margin-right: 0 !important; max-width: 100%; }
  .timeline-dot { left: 20px !important; transform: translateX(-50%); }
  .honors-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 480px) {
  .honors-grid { grid-template-columns: 1fr; }
}