.hero-section {
  background: url(../imgs/contact/top.png) 0% 100% no-repeat;
  background-size: cover;
  position: relative;
  padding-top: 240px;
  height: 400px;
  box-sizing: border-box;
}
.about-eng {
  font-weight: 200;
  font-size: 64px;
  line-height: 64px;
  color: #fff;
}
.about-eng.eng-part {
  color: #F4B01A;
  padding-top: 48px;
}
.about-chinese {
  font-weight: 500;
  font-size: 48px;
  line-height: 56px;
  color: #F4B01A;
}
.hero-content {
  position: relative;
  z-index: 2;
}
.about-us-line {
  width: 80px;
  height: 8px;
  margin-top: 20px;
  background-color: #F4B01A;
  position: absolute;
  bottom: -4px;
  left: 50%;
  margin-left: -40px;
}
.content-section {
  padding: 120px 0;
  width: 1200px;
  margin: auto;
}
.content-section .news-item {
  padding: 64px;
  border-bottom: 1px solid #999999;
  cursor: pointer;
}
.content-section .news-img {
  width: 480px;
  height: 270px;
  flex-shrink: 0;
}
.content-section .news-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.content-section .news-content {
  padding-left: 64px;
}
.content-section .news-title {
  font-weight: 500;
  font-size: 20px;
  line-height: 2.4;
  letter-spacing: 1.2px;
  color: #333333;
  margin-bottom: 48px;
}
.content-section .news-date {
  font-weight: 300;
  font-size: 14px;
  line-height: 20px;
  letter-spacing: 1.2px;
  color: #666666;
}
.content-section .right-icon {
  width: 32px;
  height: 32px;
  object-fit: cover;
}
.content-section {
  max-width: 1200px;
  margin: 60px auto;
  padding: 0 20px;
}
.contact-container {
  display: flex;
  gap: 40px;
  min-height: 500px;
  align-items: flex-start;
}
/* 左侧公司列表 */
.company-list {
  width: 280px;
  background-color: #f8f8f8;
  border-radius: 8px;
  padding: 0;
  box-shadow: 0 2px 2px rgba(0, 0, 0, 0.05);
  flex-shrink: 0;
}
.company-item {
  padding: 16px 24px;
  cursor: pointer;
  font-size: 16px;
  color: #333;
  transition: all 0.3s ease;
  border-left: 3px solid transparent;
}
.company-item.active {
  background-color: #fff;
  border-left-color: #d4af37;
  /* 金色主色，贴合现有风格 */
  color: #d4af37;
  font-weight: 600;
}
.company-item:hover:not(.active) {
  background-color: #f0f0f0;
  color: #d4af37;
}
/* 右侧富文本内容区 */
.contact-detail {
  background-color: #fff;
  border-radius: 4px;
  padding: 16px;
  box-shadow: 0 1px 1px rgba(0, 0, 0, 0.08);
  width: 100%;
}
/* 动画效果 */
@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}
.company-title {
  font-weight: 300;
  font-size: 24px;
}
#contactContent {
  padding-top: 16px;
  border-top: 1px solid #dedede;
  margin-top: 16px;
}
@media (max-width: 1199px) {
  .hero-section {
    height: 376px;
    background-position: center;
  }
  .hero-section .hero-bg {
    display: none !important;
  }
  .hero-section .about-eng {
    font-weight: 500;
    font-size: 48px;
    line-height: 1;
  }
  .hero-section .about-chinese {
    font-weight: 300;
    font-size: 30px;
    line-height: 36px;
    margin-top: 10px;
  }
  .contact-container {
    flex-direction: column;
    gap: 24px;
    min-height: auto;
  }
  .company-list {
    display: flex;
    width: 100%;
  }
  .company-list .company-item {
    flex-grow: 1;
    border-left: none;
    border-bottom: 3px solid transparent;
    text-align: center;
  }
  .company-list .company-item.active {
    border-color: #d4af37;
  }
  .content-section {
    width: 100%;
    margin: 24px 0 60px;
  }
}