.topBanner{
    width: 100%;
    height: 100vh;   
    background-color: #030045;
    display: flex;
    justify-content: center;
    align-items: start;
    /* background: palegoldenrod; */
    overflow: hidden;
    background-image: url(../imgs/png/我们的产品图.png);
    background-repeat: no-repeat;
    background-size:65vw auto;
    background-position:35vw 0vw;  
    position: relative;
}

.topBannerLeft{
    width: 28%;
    height: 80%;
    /* background: #00316B; */
    color: #fff;
    position: absolute;
    top: 20vh;
    left: 13vw;
}

.topBannerLeft p:nth-child(1){
   font-size: 3.5vw;
   font-weight: 600;
   letter-spacing: 0.3vw;
   text-align: left;
   letter-spacing: 0.5vw;
}

.topBannerLeft p:nth-child(2){
    font-size:3.5vw;
    font-weight: 600;
    color: #fff;
    margin-top: 18px;
    text-align: right;
    letter-spacing: 0.5vw;
   
  
}
.topBannerBth{
    width: 100%;
   padding-left: 2vw;
   margin-top: 13vh;
   
}

.topBannerBth a{
    display: block;
    width: 15vw;
    height: 4vw;
    font-size: 1.4vw;
    font-weight: 600;
    color: #fff;
    text-decoration: none;
    background: #00ECEC;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50px;
    transition: all 0.3s ease;
   
}
.topBannerBth span{
    font-size: 1.2vw;
    margin-right: 1vw;
}
.topBannerBth img{
    width: 1.5vw;
    height: auto;
}
.topBannerBth a:hover{
    color: #fff; 
    transform: scale(1.1);  /* 放大到原尺寸的1.1倍 */
    transition: all 0.3s ease;  /* 添加过渡动画 */

}

.btLeft{
    width: 20vw;
    position: absolute;
    bottom: 8vh;
    left: -5.5vw;
}
.tpRight{
    width: 17vw; 
    position: absolute;
    top: 16vh;
    right: -6vw;
}
.btRight{
    width:70vw;
    position: absolute;
    bottom: -1.3vh;
    right: 0vw;
}



/* ----------------------------- */

.banner{
    width: 100%;
    min-height: 110vh;
    background-image: url(../imgs/svg/背景纹（大）.svg);
    background-repeat: no-repeat;
    background-size:160%;
    background-position: 54vw -42vw;  
    background-color: #00316B;
}
/* .bannerLeft{
    width: 100%;
    height: 30%;
    background-color: rgba(3, 0, 69, 0.5);  
} */
 .bannertop{
    width: 100%;
    height:105vh;    
   display: flex;
   align-items: center;
   justify-content: left;


    
 }

 .imgBox{
    width: 50%;
    height: 100%;
    /* background: palegreen; */
    position: relative;
 }
 .imgBox .imgBox1{
    width: 20vw;
    height: auto;
    /* background: palegoldenrod; */
    position: absolute;
    top: 5vw;
    left:10vw;
 }
 .imgBox .imgBox2{
    width: 20vw;
    height: auto;
    position: absolute;
    top: 19vw;
    left: 20vw;
    /* background: palegoldenrod; */
 }
 .imgBox img{
    width: 26vw;
    height: auto;
 }
 .textBox{
    width: 15vw;
    height: 50%;
   color: #fff;
   margin-left: 5vw;
   /* background: peru; */
 }
 .textBox h1{
    font-size: 2vw;
    font-weight: 600;
    letter-spacing: 0.3vw;
 }
 .textBox p{
    font-size: 1.2vw;
    line-height: 6vh;
    margin-top: 5vh;
    
 }

 /* ------------------------- */
 .bannerBottom{
    width: 100%;
    height: 115vh;
    position: relative;
    background-image: url(../imgs/png/电子商城.png);
    background-repeat: no-repeat;
    background-size:40vw;
    background-position:0vw 50%;
   display: flex;
   justify-content: right;
   padding-right: 10vw;
   background-color: rgba(3, 0, 69, 0.8);  
    
}

.bannerBottomText{
    width: 40%;
    height: 100%;
    /* background-color: palegoldenrod; */
    display: flex;
    flex-direction: column;
    align-items: start;
    justify-content: center; 
    color: #fff;
    /* background: peru; */
}

.bannerBottomText .top{
    width: 100%;
    height: 40%;
    /* background-color: palegoldenrod; */
    display: flex;
    flex-direction: column;
    align-items: start;
    justify-content: center;
    /* padding-top: 3vh; */
}

.top p{
    width: 70%;
    font-size: 1.5vw;
    line-height:7vh;
    margin-top: 4vh;

}

.top3{
    width: 20vw;
    position: absolute;
    top: 0vh;
    left: 20vw;  
}

/* --------------------------- */

/* 产品展示区样式 */
.case {
    display: flex;
    width: 90%;
    min-height: 100vh; 
    padding: 40px;
    gap: 40px;
    margin: 0 auto;
    padding-top: 10vh;
     align-items: flex-start; /* 确保子元素从顶部开始对齐 */
}

/* 左侧导航样式 */
.product-nav {
    width: 20vw;
    flex-shrink: 0;
    border-right: 2px solid #00E0E4;
    padding-right: 3vw;
    /* 添加最大高度和滚动 */
    max-height: 100vh;
    overflow-y: auto;
    /* 添加平滑滚动 */
    scroll-behavior: smooth;
    /* 固定位置 */
    position: sticky;
    top: 0;
    min-height: 100vh;

}

/* 添加滚动条样式 */
.product-nav::-webkit-scrollbar {
    width: 3px;
}

.product-nav::-webkit-scrollbar-track {
    background: rgba(255, 255, 255, 0.1);
    border-radius: 3px;
}

.product-nav::-webkit-scrollbar-thumb {
    background: rgba(0, 224, 228, 0.5);
    border-radius: 3px;
    transition: all 0.3s ease;
}

.product-nav::-webkit-scrollbar-thumb:hover {
    background: rgba(0, 224, 228, 0.8);
}


.product-category {
    margin-bottom: 30px;
    /* background: palegoldenrod; */
}

.category-header {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 15px;
    cursor: pointer;
    transition: all 0.3s ease;
}

.category-header.active {
    color: #00E0E4;
}

.dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background-color: #fff;
}

.category-header.active .dot {
    background-color: #00E0E4;
}

.category-header h3 {
    color: #fff;
    margin: 0;
    font-size: 18px;
}

.category-content {
    display: none;
    padding-left: 30px;
    /* background: palegoldenrod; */
    position: relative;
    padding-left: 3vw;
    
}
.category-content::before{
    content: '';
    width: 1px;
    height: 100%;
    background: #fff;
    position: absolute;
    left: 12%;
    top: 0;
}

.category-content.show {
    display: block;
}

/* 产品项样式 */
.product-item {
    padding: 15px;
    cursor: pointer;
    border-radius: 8px;
    transition: all 0.3s ease;
    margin-bottom: 15px;
}

.product-item:hover,
.product-item.active {
    background-color: rgba(0, 224, 228, 0.1);
    color: #00E0E4 !important;
    border: 1px solid #00E0E4;
    box-shadow: 0 0 8px 1px rgba(0, 224, 228, 0.5),
                0 5px 8px 5px rgba(0, 0, 0, 0.5);
}

.product-item img {
    width: 100%;
    border-radius: 8px;
    margin-bottom: 10px;
}

.product-item p {
    color: #fff;
    margin: 0;
    font-size: 16px;
    transition: color 0.3s ease; /* 添加颜色过渡效果 */
}

/* 选中状态的文字样式 */
.product-item.active p {
    color: #00E0E4;
}


/* 可以添加悬停效果 */
.product-item:hover p {
    color: #00E0E4;
}

/* 右侧详情样式 */
.product-detail {
    /* flex-grow: 1; */
    /* background-color: rgba(255, 255, 255, 0.05); */
    border-radius: 12px;
    padding: 30px;
    margin-left: 8vw;
    width: 30vw;
}

.detail-content {
    color: #fff;
}

.detail-image {
    width: 20vw;
    margin-bottom: 30px;
    border: 1px solid #00E0E4;
    border-radius: 12px;
    overflow: hidden;
    display: flex;
    justify-content: center;
    align-items: center;
    box-shadow: 0 0 10px 1px rgba(0, 224, 228, 0.5),
                0 5px 15px 10px rgba(0, 0, 0, 0.3);
}

.detail-image img {
    width: 20vw; 
    border-radius: 12px;
    object-fit: contain;/* 保持图片比例，确保完整显示 */

}

.detail-info h2 {
    color: #00E0E4;
    margin-bottom: 20px;
}

.info-list p {
    margin-bottom: 15px;
    line-height: 1.6;
    font-size: 0.8vw;
}



/* ----------------- */


/* 添加平滑滚动效果 */
html {
    scroll-behavior: smooth;
}

/* 添加产品项过渡动画 */
.product-item {
    transition: all 0.3s ease;
    position: relative;
}

/* 优化active状态的视觉效果 */
.product-item.active {
    background-color: rgba(0, 224, 228, 0.1);
    transform: translateX(10px);
}

/* 英文状态下样式 */
#topBannerLeftTitle1.en,
#topBannerLeftTitle2.en {
    font-size: 2.3vw; 
  font-weight: 600;
  letter-spacing: normal; 
    
   
}