/* ===== 关于我们页面样式 ===== */

/* 页面顶部横幅 */
.page-banner {
  margin-top: 70px;
  width: 100%;
  height: 300px;
  position: relative;
  background: url('images/002.jpg') center center / cover no-repeat;
  display: flex;
  align-items: center;
  justify-content: center;
}

.page-banner-overlay {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.45);
}

.page-banner-content {
  position: relative;
  z-index: 1;
  text-align: center;
  color: #FFFFFF;
}

.page-banner-content h1 {
  font-size: 36px;
  font-weight: 600;
  margin-bottom: 8px;
  letter-spacing: 2px;
}

.page-banner-content p {
  font-size: 14px;
  letter-spacing: 4px;
  color: rgba(255, 255, 255, 0.8);
}

/* 通用区块 */
.about-intro,
.about-mission,
.about-advantages,
.about-philosophy,
.about-vision {
  padding: 64px 0;
}

.about-intro {
  background: var(--bg-white);
}

.about-mission {
  background: var(--bg-light);
}

.about-advantages {
  background: var(--bg-white);
}

.about-philosophy {
  background: var(--bg-light);
}

.about-vision {
  background: var(--bg-white);
}

.about-section-title {
  font-size: 24px;
  font-weight: 600;
  color: var(--text-dark);
  margin-bottom: 28px;
  position: relative;
  padding-left: 16px;
}

.about-section-title::before {
  content: '';
  position: absolute;
  left: 0;
  top: 4px;
  bottom: 4px;
  width: 4px;
  background: var(--brand-primary);
  border-radius: 2px;
}

.about-text p {
  font-size: 15px;
  color: var(--text-body);
  line-height: 2;
  margin-bottom: 16px;
  text-indent: 2em;
}

.about-text p:last-child {
  margin-bottom: 0;
}

/* 核心优势网格 */
.about-advantages-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  margin-top: 12px;
}

.about-adv-card {
  text-align: center;
  padding: 32px 20px;
  background: var(--bg-light);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  transition: var(--transition);
}

.about-adv-card:hover {
  box-shadow: var(--shadow-hover);
  border-color: var(--brand-primary);
  transform: translateY(-4px);
}

.about-adv-icon {
  width: 56px;
  height: 56px;
  margin: 0 auto 18px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg-white);
  border-radius: 50%;
  border: 1px solid var(--border-color);
}

.about-adv-icon svg {
  width: 26px;
  height: 26px;
  stroke: var(--brand-primary);
}

.about-adv-card h3 {
  font-size: 16px;
  font-weight: 600;
  color: var(--text-dark);
  margin-bottom: 10px;
}

.about-adv-card p {
  font-size: 13px;
  color: var(--text-body);
  line-height: 1.8;
}

/* 响应式 */
@media (max-width: 1023px) {
  .about-advantages-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 767px) {
  .page-banner { height: 200px; }
  .page-banner-content h1 { font-size: 26px; }

  .about-advantages-grid {
    grid-template-columns: 1fr;
  }

  .about-intro,
  .about-mission,
  .about-advantages,
  .about-philosophy,
  .about-vision {
    padding: 40px 0;
  }
}