/* ============================================================
   大熊物联科技 — about.css  关于我们专属样式
   ============================================================ */

/* =================================================================
   公司简介
   ================================================================= */
.about-intro { padding: 72px 0; }
.intro-center { max-width: 920px; margin: 0 auto; }
.intro-company-name {
  font-size: 1.95rem; font-weight: 800; text-align: center;
  margin-bottom: 10px; color: var(--text-dark);
}
.intro-subtitle {
  text-align: center; color: var(--accent); font-size: 1rem;
  font-weight: 600; margin-bottom: 36px; letter-spacing: 0.03em;
}
.intro-body p {
  text-indent: 2em; color: var(--text-gray); line-height: 1.95;
  margin-bottom: 14px; font-size: 0.96rem;
}
.intro-stats {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; margin-top: 48px;
}
.i-stat {
  background: var(--bg-light); border-radius: var(--radius); padding: 24px 18px; text-align: center;
  border: 1px solid var(--border);
}
.i-stat strong { display: block; font-size: 2.2rem; font-weight: 800; color: var(--primary); line-height: 1.2; }
.i-stat span   { font-size: 0.85rem; color: var(--text-gray); margin-top: 4px; display: block; }

/* =================================================================
   企业文化
   ================================================================= */
.culture-section { background: var(--primary-dark); padding: 80px 0; }
.culture-header { text-align: center; color: #fff; margin-bottom: 56px; }
.culture-header h2 { font-size: 2rem; font-weight: 700; margin-bottom: 10px; }
.culture-header p  { opacity: 0.7; }
.culture-header .line { background: linear-gradient(90deg, var(--accent), #fff); }
.culture-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.culture-card {
  background: rgba(255,255,255,0.08); border: 1px solid rgba(255,255,255,0.12);
  border-radius: var(--radius); padding: 32px 24px; text-align: center; color: #fff;
  transition: all 0.3s;
}
.culture-card:hover { background: rgba(255,255,255,0.15); transform: translateY(-5px); }
.culture-icon {
  width: 60px; height: 60px; background: rgba(244,121,32,0.2); border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-size: 1.4rem; color: var(--accent); margin: 0 auto 20px;
}
.culture-card h3 { font-size: 1rem; font-weight: 700; margin-bottom: 10px; }
.culture-card p  { font-size: 0.88rem; opacity: 0.72; line-height: 1.75; }

/* =================================================================
   发展历程 Timeline
   ================================================================= */
.timeline-section { padding: 80px 0; }
.timeline { position: relative; max-width: 900px; margin: 0 auto; }
.timeline::before {
  content: ''; position: absolute; left: 50%; top: 0; bottom: 0;
  width: 2px; background: var(--border); transform: translateX(-50%);
}
.timeline-item {
  display: flex; gap: 0; margin-bottom: 48px; position: relative;
  align-items: flex-start;
}
.timeline-item:nth-child(odd)  { flex-direction: row; }
.timeline-item:nth-child(even) { flex-direction: row-reverse; }

.timeline-content {
  width: calc(50% - 40px); background: #fff; border-radius: var(--radius);
  padding: 24px 28px; box-shadow: var(--shadow-sm); border: 1px solid var(--border);
  transition: all 0.3s;
}
.timeline-content:hover { box-shadow: var(--shadow); transform: translateY(-3px); }
.timeline-item:nth-child(odd)  .timeline-content { margin-right: auto; }
.timeline-item:nth-child(even) .timeline-content { margin-left: auto; }

.timeline-dot {
  position: absolute; left: 50%; top: 24px; transform: translateX(-50%);
  width: 16px; height: 16px; background: var(--primary); border: 3px solid #fff;
  border-radius: 50%; box-shadow: 0 0 0 3px var(--primary-light); z-index: 1;
}
.timeline-year {
  display: inline-block; background: var(--primary); color: #fff;
  padding: 3px 12px; border-radius: 20px; font-size: 0.82rem; font-weight: 700;
  margin-bottom: 10px;
}
.timeline-content h3 { font-size: 1rem; font-weight: 700; margin-bottom: 6px; }
.timeline-content p  { font-size: 0.87rem; color: var(--text-gray); line-height: 1.75; }

/* =================================================================
   荣誉资质
   ================================================================= */
.honor-section { padding: 80px 0; background: var(--bg-light); }
.honor-grid { display: grid; grid-template-columns: repeat(6, 1fr); gap: 14px; }
.honor-card {
  background: #fff; border-radius: var(--radius); border: 1px solid var(--border);
  overflow: hidden; transition: all 0.3s;
}
.honor-card:hover { box-shadow: var(--shadow); transform: translateY(-4px); }
.honor-img {
  aspect-ratio: 3/4; overflow: hidden;
  background: #fff;
  display: flex; align-items: center; justify-content: center;
  padding: 12px;
  user-select: none;
  pointer-events: none;
}
.honor-img img {
  width: 100%; height: 100%; object-fit: contain;
  pointer-events: none;
  user-select: none;
  -webkit-user-drag: none;
}

/* =================================================================
   团队风采
   ================================================================= */
.team-section { padding: 80px 0; }
.team-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 28px; }
.team-card {
  text-align: center; background: #fff; border-radius: var(--radius);
  padding: 32px 20px; border: 1px solid var(--border); transition: all 0.3s;
}
.team-card:hover { box-shadow: var(--shadow); transform: translateY(-5px); border-color: var(--primary-light); }
.team-avatar {
  width: 90px; height: 90px; border-radius: 50%; overflow: hidden;
  margin: 0 auto 16px; border: 3px solid var(--primary-light);
  background: var(--bg-light); display: flex; align-items: center; justify-content: center;
}
.team-avatar img { width: 100%; height: 100%; object-fit: cover; }
.team-avatar i   { font-size: 2.2rem; color: var(--primary-light); }
.team-card h3 { font-size: 1rem; font-weight: 700; margin-bottom: 4px; }
.team-card .role { font-size: 0.85rem; color: var(--accent); font-weight: 600; margin-bottom: 10px; }
.team-card p  { font-size: 0.84rem; color: var(--text-gray); line-height: 1.7; }

/* =================================================================
   联系我们
   ================================================================= */
.about-contact { padding: 80px 0; background: var(--bg-light); }
.contact-split { display: grid; grid-template-columns: 1.2fr 1fr; gap: 56px; align-items: start; }
.contact-info h2 { font-size: 1.8rem; font-weight: 700; margin-bottom: 14px; }
.contact-info > p { color: var(--text-gray); line-height: 1.85; margin-bottom: 32px; }
.info-items { display: flex; flex-direction: column; gap: 18px; }
.info-item  { display: flex; gap: 16px; align-items: flex-start; }
.info-item .ic {
  width: 46px; height: 46px; background: var(--primary); border-radius: 12px; flex-shrink: 0;
  display: flex; align-items: center; justify-content: center; color: #fff; font-size: 1rem;
}
.info-item div h4 { font-size: 0.9rem; font-weight: 600; margin-bottom: 3px; }
.info-item div p  { font-size: 0.87rem; color: var(--text-gray); line-height: 1.7; }

/* 地图区域 */
.map-wrap {
  border-radius: var(--radius-lg); overflow: hidden; box-shadow: var(--shadow);
  background: #e4e9f0; height: 320px; display: flex; align-items: center; justify-content: center;
  color: var(--text-gray); flex-direction: column; gap: 12px;
  border: 1px solid var(--border);
}
.map-wrap i { font-size: 3rem; color: var(--primary-light); }
.map-wrap p { font-size: 0.9rem; text-align: center; padding: 0 20px; }

/* =================================================================
   响应式
   ================================================================= */
@media (max-width: 1024px) {
  .culture-grid { grid-template-columns: repeat(2, 1fr); }
  .honor-grid   { grid-template-columns: repeat(4, 1fr); }
  .team-grid    { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 768px) {
  .intro-stats    { grid-template-columns: 1fr 1fr; }
  .culture-grid   { grid-template-columns: 1fr 1fr; }
  .honor-grid     { grid-template-columns: repeat(3, 1fr); }
  .team-grid      { grid-template-columns: repeat(2, 1fr); }
  .contact-split  { grid-template-columns: 1fr; }
  /* Timeline 移动端 */
  .timeline::before         { left: 16px; }
  .timeline-item            { flex-direction: column !important; padding-left: 48px; }
  .timeline-content         { width: 100% !important; margin: 0 !important; }
  .timeline-dot             { left: 16px; }
}
@media (max-width: 480px) {
  .honor-grid  { grid-template-columns: 1fr 1fr; }
  .team-grid   { grid-template-columns: 1fr 1fr; }
}