.pro-banner{
    position:relative;
    width:100%;
    height:420px;
    background-image:url("../image/pro-banner.jpg");
    background-repeat: no-repeat;
    background-size:cover;
    background-position:center;
    display:flex;
    align-items:center;
    justify-content:center;
    text-align:center;
    color:#fff;
}
/* 右上角首页按钮 */
.pro-banner-top-home {
    position: absolute;
    right: 30px;
    top: 24px;
    z-index: 10;
}
.pro-banner-top-home a {
    display: inline-block;
    padding: 8px 20px;
    border: 1px solid rgba(255, 255, 255, 0.65);
    color: #fff;
    font-size: 14px;
    text-decoration: none;
    border-radius: 4px;
    transition: 0.2s;
}
.pro-banner-top-home a:hover {
    background: #fff;
    color: #0b2447;
}
/* 顶部白色标签 */
.pro-banner-tip{
    display:inline-block;
    background:#ffffff;
    color:#222222;
    padding:8px 32px;
    font-size:18px;
    margin-bottom:16px;
}
/* 大标题，缩小字号，减少字间距 */
.pro-banner h1{
    font-size:46px;
    color:#fff;
    font-weight:bold;
    margin:0 0 20px 0;
    letter-spacing:2px;
}
/* 底部淡蓝色小字 */
.pro-banner-sub{
    font-size:14px;
    color:#80a8ff;
    line-height:2;
}
/* tab选项卡 */
.pro-tab-wrap{
    padding:40px 0;
}
.pro-tab-list{
    display:grid;
    grid-template-columns: repeat(5,1fr);
    gap:12px;
}
.pro-tab-item{
    text-align:center;
    cursor:pointer;
    color:#666;
    padding:20px 10px;
    border-radius:10px;
    transition: 0.24s ease;
    background:none;
}
/* hover和active：加载渐变背景 pro‑tabbg.png */
.pro-tab-item.active,
.pro-tab-item:hover{
    color:#2554b8;
    background-image:url("../image/pro-tabbg.png");
    background-repeat:no-repeat;
    background-position:center;
    background-size:100% 100%;
}
/* 放大图标高度 */
.pro-tab-icon{
    height:140px;
    margin-bottom:14px;
    position:relative;
}
.pro-tab-icon img{
    width:auto;
    height:100%;
    object-fit:contain;
    position:absolute;
    left:50%;
    top:0;
    transform:translateX(-50%);
    transition: 0.24s;
}
/* 默认显示灰色图标，隐藏蓝色 */
.pro-tab-icon .img-active{
    opacity:0;
}
.pro-tab-icon .img-normal{
    opacity:1;
}
/* hover / active切换蓝色图标 */
.pro-tab-item.active .img-active,
.pro-tab-item:hover .img-active{
    opacity:1;
}
.pro-tab-item.active .img-normal,
.pro-tab-item:hover .img-normal{
    opacity:0;
}
/* Tab内容切换核心样式【加固，解决tab1不显示】 */
.protab-content {
    display: none !important;
    width: 100%;
}
.protab-content.active {
    display: block !important;
}
/*产品卡片区域*/
.pro-card-wrap{
    padding-bottom:60px;
}
.pro-card-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    max-width: 1200px;
    margin: 0 auto;
    width: 100%;
}
.pro-card{
    background:#f7f8fa;
    overflow:hidden;
    border-radius:8px;
}
/*型号标题 上方居中*/
.pro-card-title{
    text-align:center;
    padding:14px 12px 8px;
    font-size:24px;
    color:#222;
    margin:0;
}
.pro-card-imgbox{
    position:relative;
}
.pro-card-imgbox img{
    width:100%;
    object-fit:cover;
}
/*参数：标签居左，数值居右*/
.pro-card-param{
    padding:12px 12px 16px;
}
.param-row{
    display:flex;
    justify-content:space-between;
    background:#2554b8;
    color:#fff;
    font-size:18px;
    padding:4px 8px;
    margin-bottom:4px;
}
.param-label{
    text-align:left;
}
.param-value{
    text-align:right;
}
/*底部横幅*/
.pro-bottom-banner {
    width: 100%;
    padding: 40px 0;
    background-image: url(../image/lianxi-bg.jpg);
    background-repeat: no-repeat;
    background-size: cover;
    background-position: center;
    color: #fff;
	margin-bottom: 40px;
}
/* 仅限制内部文字最大1200px */
.pro-bottom-banner .container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 15px;
    width: 100%;
    box-sizing: border-box;
}
.pro-bottom-text h3{
    font-size:20px;
    margin-bottom:10px;
}
/*移动端适配 修改：手机tab一行5个横向滚动；产品卡片一行2个 */
@media(max-width:768px){
    .pro-banner{
        height:300px;
    }
    .pro-banner h1{
        font-size:24px;
    }
    /* tab容器开启横向滚动，保持一行5个不换行 */
    .pro-tab-list{
        grid-template-columns: repeat(5,140px);
        overflow-x:auto;
        gap:8px;
        padding-bottom:10px;
    }
    .pro-tab-icon{
        height:72px;
    }
    /* 产品卡片一行2列 */
    .pro-card-grid{
        grid-template-columns: repeat(2,1fr);
        gap:16px;
    }
	.pro-card-title{
		font-size: 18px;
	}
	.param-row{
		font-size: 14px;
	}
	.pro-banner-tip{
		padding: 4px 16px;
	}
}