.banner {
    height: 330px;
    position: relative;
    overflow: hidden;
}

.banner .bimg {
    position: absolute;
    width: 100%;
    height: 100%;
    object-fit: cover;

}

.banner .text {
    display: block;
    z-index: 4;
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    text-align: center;
    color: white;
}

.banner .text h1 {
    color: white;
}

.banner .text a {
    color: #FFF;
}
 .Box1 ul {
    display: flex;
    justify-content: space-between;
    padding: 20px 0;
    border-bottom: 1px solid #ddd;
 }
 @media screen and (max-width:991px) {
   .Box1{
      display: none;
   }
 }
 .Box1 ul li{
    cursor: pointer; 
    transition: 0.3s;
 }
 .Box1 ul li:hover{
    color: #F08519;
 }
 .Box1 li.active{
    color: #F08519;  
 }
 .Box1 ul li div{
    width: 85px;
    height: 85px;
    overflow: hidden; 
    margin: 0 auto;
    border-radius: 999px;
    border: 1px solid #ddd;
 }

 .Box2{
    background-color: #F6F6F6;
    padding: 50px 0 0 0; 
    text-align: center;
 }
 .Box2 .row{
    justify-content: center;
    padding: 60px 0 70px 0;
    position: relative;
    overflow: hidden;
 }
 .Box2 .ProductBox{
    display: none;
    opacity: 0; /* 初始透明 */
    height: 0; /* 初始高度0（不占位） */
    overflow: hidden; /* 防止内容溢出 */
    transition: opacity 0.4s ease, height 0.4s ease; /* 仅过渡透明度和高度 */
 }
 .Box2 .ProductBox.active {
    display: flex; 
    opacity: 1; /* 第二步：透明度过渡到1（视觉出现） */
    height: auto; /* 第二步：高度过渡到自适应（视觉出现） */
}

 .Box2 .row .title{
    position: absolute;
    top: 0px;
    left: 50%;
    transform: translateX(-50%);
    font-size: 22px;
 }
 .Box2 .row .category{
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    color: #EAEAEB;
    font-size: 80px;
    bottom: -40px;
 }
 .Box2 .box{ 
    margin-bottom: 30px;
    transition: 0.3s;
 } 
 .Box2 .box:hover{
    transform: translateY(-10px);
 }
 .Box2 .box a{
    display: block;
 }
 .Box2 .box div{
    background-color: white;
    padding-top: 100%; 
    position: relative;
 }
 .Box2 .box div img{
    position: absolute;
    width: 90%;
    height: 90%;
    object-fit: contain;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
 }
 .Box2 .box span{
    color: #000;
    margin-top: 10px;
    transition: 0.3s;
 }
 .Box2 .box:hover span{
    color: #F08519;
 }