/* ========== 关于页面样式 ========== */
.page-hero {
  padding: 140px 24px 60px;
  background: linear-gradient(180deg, #f0f4ff 0%, #ffffff 100%);
  text-align: center;
}
.page-hero-content h1 {
  font-size: 42px;
  font-weight: 800;
  margin-bottom: 12px;
  letter-spacing: -1px;
}
.page-hero-content p {
  font-size: 18px;
  color: #64748b;
}

.about-section {
  max-width: 1000px;
  margin: 0 auto;
  padding: 60px 24px 100px;
}

.about-intro {
  margin-bottom: 80px;
}

.about-text h2 {
  font-size: 28px;
  font-weight: 800;
  margin-bottom: 24px;
  color: #1e293b;
}
.about-text p {
  font-size: 16px;
  color: #64748b;
  line-height: 1.8;
  margin-bottom: 16px;
}

.about-stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  margin-top: 48px;
}
.about-stat {
  background: white;
  border: 1px solid #e2e8f0;
  border-radius: 16px;
  padding: 28px;
  text-align: center;
  transition: all 0.3s;
}
.about-stat:hover {
  transform: translateY(-4px);
  box-shadow: 0 10px 30px rgba(0,0,0,0.08);
  border-color: #0eb085;
}
.about-stat-num {
  font-size: 32px;
  font-weight: 800;
  color: #0eb085;
  margin-bottom: 6px;
}
.about-stat-label {
  font-size: 14px;
  color: #64748b;
}

.about-values h2 {
  font-size: 28px;
  font-weight: 800;
  margin-bottom: 32px;
  text-align: center;
  color: #1e293b;
}
.values-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.value-card {
  background: white;
  border: 1px solid #e2e8f0;
  border-radius: 16px;
  padding: 36px 28px;
  text-align: center;
  transition: all 0.3s;
}
.value-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 12px 30px rgba(0,0,0,0.08);
  border-color: transparent;
}
.value-icon {
  font-size: 40px;
  margin-bottom: 16px;
}
.value-card h3 {
  font-size: 20px;
  font-weight: 700;
  margin-bottom: 10px;
  color: #1e293b;
}
.value-card p {
  font-size: 15px;
  color: #64748b;
  line-height: 1.6;
}

@media (max-width: 768px) {
  .page-hero-content h1 { font-size: 32px; }
  .about-stats-grid { grid-template-columns: repeat(2, 1fr); }
  .values-grid { grid-template-columns: 1fr; }
  .about-text h2, .about-values h2 { font-size: 24px; }
}