移动端优先响应式2列Grid布局问题排查求助

问题根源 #

你的代码直接给.product-div设置了grid-template-columns: 1fr 1fr，导致所有屏幕尺寸都强制显示双列，违背了移动端优先的逻辑；同时你提到的@media断点规则并未在代码中实现，自然无法触发布局切换。

修复步骤 #

1. 移动端基础布局：给.product-div默认设置单列布局，适配小屏幕
2. 添加媒体查询：在屏幕宽度≥768px时，切换为等宽双列布局
3. 细节优化：移动端下右侧栏的顶部边框可隐藏，避免单列时的视觉突兀

修改后的完整CSS代码 #

/*product details*/
img {
  width: 100%;
  height: auto;
  display: block;
  border: 1px solid #B0B0B0;
  border-radius: 5px;
  object-fit: contain;
  object-position: bottom;
  margin-left: auto;
  margin-right: auto;
  text-align: center;
}

.main-wrapper {
  min-height: 100vh;
  position: relative;
  display: grid;
  align-items: center;
  justify-content: center;
}

.container {
  display: grid;
  max-width: 1200px;
  padding: 30px 5px;
  background-color: yellow;
}

/* 移动端默认单列布局 */
.product-div {
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  grid-template-rows: auto;
  gap: 10px;
  background-color: blue;
}

.product-div-left {
  padding: 0 30px;
  text-align: center;
  background-color: orange;
}

.product-div-right {
  padding: 0 30px 5px;
  border-top: 1px solid #BFCBCE;
  background-color: white;
}

/* 屏幕宽度≥768px时切换双列布局 */
@media (min-width: 768px) {
  .product-div {
    grid-template-columns: 1fr 1fr;
  }
  .product-div-right {
    border-top: none; /* 双列时去掉顶部边框 */
  }
}

.image-container {
  align-content: center;
}

.frame-img-container img {
  border-radius: none;
  border: none;
}

.img-container img {
  width: 100%;
  text-align: center;
  height: auto;
  margin: 0;
  border-radius: 5px;
}

.img-container-bk img {
  width: 100%;
}

.img-container2 img {
  width: 430px;
  height: auto;
  margin: 0 auto;
  border-radius: 5px;
  background-color: white;
}

.hover-container {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  margin-top: 20px;
}

.hover-container div {
  padding: 0;
  margin: 0 4px 8px 4px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.active {
  border-color: #72848C !important;
  /*js related*/
}

.hover-container div:hover {
  border-color: #BFCBCE;
  border: 2px solid;
  border-radius: 5px;
  transition: 5s;
}

.hover-container div img {
  width: 100px;
  height: auto;
  cursor: pointer;
  border-radius: 5px;
}

HTML代码保持不变 #

你的HTML结构无需修改，直接配合上述CSS即可实现预期效果。

内容的提问来源于stack exchange，提问作者user24194166