.aboutUs .font-regular-16 {
  font-size: 16px;
  line-height: 28px;
}
.aboutUs .font-regular-18 {
  font-size: 18px;
}
.aboutUs .font-medium-16 {
  font-size: 16px;
}
.aboutUs .font-bold-16 {
  font-size: 16px;
  font-family: roboto-bold;
}
.aboutUs .font-bold-18 {
  font-size: 18px;
  font-family: roboto-bold;
}
.aboutUs .font-bold-20 {
  font-size: 20px;
  font-family: roboto-bold;
}
.aboutUs .font-bold-22 {
  font-size: 22px;
  font-family: roboto-bold;
}
.aboutUs .font-bold-36 {
  font-size: 36px;
  line-height: 48px;
  font-family: roboto-bold;
}
.aboutUs .font-bold-48 {
  font-size: 48px;
  font-family: roboto-bold;
}
.aboutUs .font-bold-52 {
  font-size: 52px;
  font-family: roboto-bold;
}
.aboutUs .font-bold-80 {
  font-size: 80px;
  font-family: roboto-bold;
}
.aboutUs .wrapper {
  background-color: #000;
  color: #fff;
  padding-bottom: 200px;
}
.aboutUs .common-page {
  max-width: 1200px;
  margin: 0 auto;
}
.aboutUs .mt-200 {
  margin-top: 200px;
}
.aboutUs .mb-200 {
  margin-bottom: 200px;
}
.aboutUs .pt-200 {
  padding-top: 200px;
}
.aboutUs .mb-40 {
  margin-bottom: 40px;
}
.aboutUs .mb-60 {
  margin-bottom: 60px;
}
.aboutUs .mb-24 {
  margin-bottom: 24px;
}
.aboutUs .banner {
  position: relative;
  width: 100%;
  height: 0;
  padding-bottom: 35.4167%; /* 680/1920 = 0.354167 */
  overflow: hidden; /* 确保超出部分被隐藏 */
}

.aboutUs .banner::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(0, 0, 0, 0.3);
  z-index: 1;
}

.aboutUs .banner img {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 0;
}

.aboutUs .banner .title {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  text-align: center;
  color: #fff;
  z-index: 2;
}

/* 三列布局样式 */
.aboutUs .grid-section {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 120px;
  margin: 60px 120px 200px;
}

.aboutUs .feature {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
}

.aboutUs .feature img {
  max-width: 100%;
  height: auto;
  margin-bottom: 15px;
}

.aboutUs .team-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 60px 120px;
  margin: 40px 0;
}

.aboutUs .team-member {
  display: flex;
  flex-direction: column;
}

.aboutUs .team-member img {
  max-width: 100%;
  height: auto;
  border-radius: 16px;
  margin-bottom: 52px;
}

.aboutUs .team-member .desc {
  color: #969696;
}

/* 响应式布局 */
@media (max-width: 992px) {
  .aboutUs .grid-section,
  .aboutUs .team-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .aboutUs .grid-section {
    margin: 50px 0;
  }
  .aboutUs .banner {
    min-height: 500px;
  }
  .aboutUs .banner img {
    height: 100%;
    width: auto;
    left: 50%;
    transform: translateX(-50%) !important;
    -webkit-transform: translateX(-50%) !important;
  }
  .aboutUs .banner .title {
    font-size: 36px;
  }
  .aboutUs .font-bold-52 {
    font-size: 36px;
  }
  .aboutUs .pt-200 {
    padding-top: 50px;
  }
  .aboutUs .mb-200 {
    margin-bottom: 80px;
  }
}

/* 移动端优先的响应式调整 */
@media (max-width: 768px) {
  .aboutUs .font-bold-36 {
    font-size: 24px;
    line-height: 32px;
  }
  
  .aboutUs .grid-section, .team-grid {
    gap: 20px;
  }

  .aboutUs .font-bold-52 {
    font-size: 28px !important;
  }
  .aboutUs .font-regular-16 {
    font-size: 14px !important;
    line-height: 20px;
  }
  .aboutUs .font-medium-16 {
    font-size: 14px !important;
    line-height: 20px;
  }
  .aboutUs .feature {
    font-size: 14px;
  }
  .aboutUs .feature img {
    max-width: 30px;
  }
  .aboutUs .team-grid {
    gap: 20px;
  }
}

@media (max-width: 576px) {
  .aboutUs .wrapper {
    padding: 30px 0;
  }
  
  .aboutUs .feature, .team-member {
    padding: 15px;
  }
}