/* ============================================
   关于我们页面 - about.css
   紫色系 · 移动端优先 · 原生App质感
   前缀：about-
   ============================================ */

/* --- 公司介绍 --- */
.about-intro {
  font-size: 0.92rem;
  line-height: 1.8;
  color: #1f2937;
  margin-bottom: 8px;
}
.about-intro strong {
  color: #9333ea;
}
.about-positioning {
  font-size: 0.82rem;
  font-weight: 600;
  color: #9333ea;
  letter-spacing: 0.06em;
  background: linear-gradient(135deg, rgba(147,51,234,0.08), rgba(147,51,234,0.03));
  border: 1px solid rgba(147,51,234,0.12);
  border-radius: 8px;
  padding: 8px 14px;
  margin-top: 4px;
  text-align: center;
}

/* --- 核心数据 --- */
.about-stats-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
}
.about-stat-item {
  background: linear-gradient(135deg, rgba(147,51,234,0.05), rgba(147,51,234,0.02));
  border: 1px solid rgba(147,51,234,0.1);
  border-radius: 12px;
  padding: 14px 12px;
  text-align: center;
  transition: transform 0.2s;
}
.about-stat-item:active {
  transform: scale(0.97);
}
.about-stat-num {
  font-size: 1.6rem;
  font-weight: 800;
  color: #9333ea;
  line-height: 1.2;
  margin-bottom: 4px;
}
.about-stat-num span {
  font-size: 0.85rem;
  font-weight: 600;
}
.about-stat-label {
  font-size: 0.72rem;
  color: #6b7280;
  line-height: 1.4;
}

/* --- 发展里程碑 --- */
.about-milestones {
  display: flex;
  flex-direction: column;
  gap: 0;
  position: relative;
  padding-left: 16px;
}
.about-milestones::before {
  content: '';
  position: absolute;
  left: 5px;
  top: 8px;
  bottom: 8px;
  width: 2px;
  background: linear-gradient(180deg, #9333ea, #c084fc, #e9d5ff);
  border-radius: 1px;
}
.about-milestone-item {
  position: relative;
  padding: 10px 0 10px 16px;
}
.about-milestone-item::before {
  content: '';
  position: absolute;
  left: -14px;
  top: 16px;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: #9333ea;
  border: 2px solid #f5f3ff;
  box-shadow: 0 0 0 2px rgba(147,51,234,0.2);
}
.about-milestone-year {
  font-size: 0.82rem;
  font-weight: 700;
  color: #9333ea;
  margin-bottom: 2px;
}
.about-milestone-desc {
  font-size: 0.85rem;
  color: #374151;
  line-height: 1.5;
}

/* --- 使命愿景 --- */
.about-mission-highlight {
  text-align: center;
  padding: 16px;
  background: linear-gradient(135deg, rgba(147,51,234,0.06), rgba(147,51,234,0.02));
  border: 1px solid rgba(147,51,234,0.1);
  border-radius: 14px;
  margin-bottom: 14px;
}
.about-mission-text {
  font-size: 1.1rem;
  font-weight: 700;
  color: #9333ea;
  margin-bottom: 4px;
}
.about-mission-sub {
  font-size: 0.85rem;
  color: #7c3aed;
  font-weight: 500;
  margin: 0;
}

.about-vision-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
}
.about-vision-card {
  background: linear-gradient(135deg, #f5f3ff, #ede9fe);
  border: 1px solid #e9d5ff;
  border-radius: 12px;
  padding: 16px 12px;
  text-align: center;
  transition: transform 0.2s;
}
.about-vision-card:active {
  transform: scale(0.97);
}
.about-vision-card-alt {
  background: linear-gradient(135deg, #eff6ff, #dbeafe);
  border-color: #bfdbfe;
}
.about-vision-icon {
  font-size: 1.3rem;
  color: #9333ea;
  margin-bottom: 8px;
}
.about-vision-card-alt .about-vision-icon {
  color: #2563eb;
}
.about-vision-card h4 {
  font-size: 0.82rem;
  font-weight: 700;
  color: #1f2937;
  margin: 0;
  line-height: 1.5;
}

/* --- 公司优势 --- */
.about-advantage-text {
  font-size: 0.88rem;
  line-height: 1.8;
  color: #374151;
}
.about-advantage-text strong {
  color: #9333ea;
}

/* --- 服务体系 --- */
.about-service-section {
  margin-top: 18px;
  padding-top: 16px;
  border-top: 1px solid rgba(147,51,234,0.1);
}
.about-service-section:first-child {
  margin-top: 0;
  padding-top: 0;
  border-top: none;
}

.about-service-title {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.95rem;
  font-weight: 700;
  color: #1f2937;
  margin-bottom: 12px;
}

.about-service-badge {
  display: inline-flex;
  align-items: center;
  padding: 2px 10px;
  border-radius: 12px;
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  color: #fff;
  flex-shrink: 0;
}
.about-badge-purple {
  background: linear-gradient(135deg, #9333ea, #7c3aed);
  box-shadow: 0 2px 6px rgba(147,51,234,0.25);
}
.about-badge-blue {
  background: linear-gradient(135deg, #3b82f6, #2563eb);
  box-shadow: 0 2px 6px rgba(59,130,246,0.25);
}
.about-badge-pink {
  background: linear-gradient(135deg, #ec4899, #db2777);
  box-shadow: 0 2px 6px rgba(236,72,153,0.25);
}
.about-badge-teal {
  background: linear-gradient(135deg, #14b8a6, #0d9488);
  box-shadow: 0 2px 6px rgba(20,184,166,0.25);
}

.about-service-group {
  padding-left: 4px;
}

.about-service-subtitle {
  font-size: 0.82rem;
  font-weight: 700;
  color: #9333ea;
  margin: 12px 0 6px;
  padding-left: 4px;
}
.about-service-subsection .about-service-subtitle {
  position: relative;
  padding-left: 12px;
}
.about-service-subsection .about-service-subtitle::before {
  content: '';
  position: absolute;
  left: 0;
  top: 2px;
  bottom: 2px;
  width: 3px;
  border-radius: 2px;
  background: #9333ea;
}

.about-service-link {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 6px 4px;
  font-size: 0.85rem;
  color: #374151;
  line-height: 1.5;
  border-bottom: 1px solid rgba(0,0,0,0.03);
}
.about-service-link:last-child {
  border-bottom: none;
}
.about-service-link i {
  font-size: 0.7rem;
  color: #9333ea;
  flex-shrink: 0;
}
.about-service-link a {
  color: #374151;
  text-decoration: none;
  transition: color 0.2s;
}
.about-service-link a:hover,
.about-service-link a:active {
  color: #9333ea;
}

.about-service-slogan {
  font-size: 0.88rem;
  font-weight: 600;
  color: #9333ea;
  margin: 8px 0;
  padding: 8px 12px;
  background: rgba(147,51,234,0.04);
  border-radius: 8px;
  text-align: center;
}

.about-service-subsection {
  margin-bottom: 14px;
}
.about-service-subsection:last-child {
  margin-bottom: 0;
}

.about-service-list {
  list-style: none;
  padding: 0;
  margin: 6px 0 0 12px;
}
.about-service-list li {
  font-size: 0.82rem;
  color: #4b5563;
  line-height: 1.6;
  padding: 3px 0;
  position: relative;
  padding-left: 14px;
}
.about-service-list li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 10px;
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: #c084fc;
}
.about-service-list a {
  color: #4b5563;
  text-decoration: none;
  transition: color 0.2s;
}
.about-service-list a:hover,
.about-service-list a:active {
  color: #9333ea;
}

/* --- PC适配 --- */
@media (min-width: 768px) {
  .about-stats-grid {
    grid-template-columns: repeat(4, 1fr);
    gap: 14px;
  }
  .about-stat-num {
    font-size: 1.8rem;
  }
  .about-vision-grid {
    grid-template-columns: 1fr 1fr;
    gap: 14px;
  }
  .about-vision-card {
    padding: 20px 16px;
  }
  .about-vision-card h4 {
    font-size: 0.9rem;
  }
  .about-mission-text {
    font-size: 1.2rem;
  }
  .about-service-title {
    font-size: 1rem;
  }
  .about-intro {
    font-size: 0.95rem;
  }
}

/* --- 窄屏适配 --- */
@media (max-width: 359px) {
  .about-stats-grid {
    grid-template-columns: 1fr 1fr;
    gap: 8px;
  }
  .about-stat-num {
    font-size: 1.35rem;
  }
  .about-stat-label {
    font-size: 0.68rem;
  }
  .about-vision-grid {
    grid-template-columns: 1fr;
  }
  .about-mission-text {
    font-size: 1rem;
  }
  .about-service-list li {
    font-size: 0.78rem;
  }
}