/* 基础样式 */
body {
  margin: 0;
  padding: 0;
  font-family: "Microsoft YaHei", sans-serif;
}

.bg {
  width: 100%;
  min-height: 100vh;
  background-size: cover;
  background-position: center;
  padding: 40px;
  box-sizing: border-box;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  position: relative;
}

/* 图片样式 */
.carousel-img {
  width: 300px;
  height: auto;
  margin: 30px;
  cursor: pointer;
  transition: transform 0.3s ease;
}

.carousel-img:hover {
  transform: scale(1.05);
}

/* 文字介绍样式（默认隐藏） */
.info-text {
  display: none; /* 默认隐藏 */
  width: 300px;
  margin: 30px;
  font-size: 18px;
  color: #ffffff;
  line-height: 1.6;
}

/* 返回按钮样式 */
.back-btn {
  position: absolute;
  left: 50px;
  bottom: 50px;
  cursor: pointer;
  transition: transform 0.3s ease;
}

.back-btn img {
  width: 60px;
  height: auto;
}

.back-btn:hover {
  transform: scale(1.1);
}

.material-grid {
      display: grid;
      grid-template-columns: repeat(2, 1fr); /* 2列布局 */
      gap: 30px; /* 图片间距 */
      margin-bottom: 60px;

    }


.title{
    display: grid;
  grid-template-columns: 1fr 1fr; /* 两列等宽 */
  gap: 24px; /* 间距 */
    
}