body {
    margin: 0;
    padding: 0;
    font-family: Arial, sans-serif;
}

.container {
    display: flex;
    justify-content: center;
    flex-direction:column;
}

/*header*/
.header_top{
    display: flex;
    /*flex-direction: column;*/
    justify-content:center;
    background-color: #1b6083;
    color:#cccccc;
}

.header_top_nav{
    display: flex;
    justify-content: flex-end;
    width:1200px;
    height:35px;
    line-height: 35px;
}
.header_top_nav a{
    color: #ffffff;
    display: block;
    text-align: right;
    font-weight: bold;
}
.header_top_nav .rightline{
    display: block;
    width: 10px;
    color: #000000;
    margin-left:20px;
    margin-right:20px;
 }

.header_top_logo{
    display: flex;
    background-color: #fff;
    color:#000000;
    width:1200px;
    height: 100px;
    justify-content:space-between;
}
.layui-icon-down:before{
    content: '';
}

.layui-nav{
    width: 1200px;
    background-color: #fff;
    color:#000;
    display: flex;
    justify-content:space-between;
    padding: 0;
}

.layui-nav-item{
    width: 168px;
    height: 76px;
    line-height: 56px;
    text-align: center;
}
.layui-nav .layui-nav-item a
{
    display: block;
    color:#333;
    font-size: 16px;
    font-weight: bold;
}
.layui-nav .layui-nav-item a:hover
{
    background-color: #8cc8ff;
    opacity: 0.5;
    color:#333;
    font-weight: bold;
}
.layui-nav .layui-nav-item dd a{
    font-size:14px;
    /* width:168px; */
}
.layui-nav-child{
    background-color: rgba(43, 191, 213, 0.5); /* 使用 rgba() 函数设置透明度为 0.5 */
    padding: 0;
    margin:-5px 0 0 0;
}
.layui-nav-child a{
    height: 60px;
    line-height: 60px;
    font-weight: bold;;
    color:#fff;
    font-size: 12px;
}
.header_top2{
    display: flex;
    color:#000000;
    justify-content:center;
    background-color: #cbe6ff;


    position: fixed; /* 固定定位 */
    top: 0; /* 距离页面顶部0 */
    left: 0; /* 距离页面左侧0 */
    width: 100%; /* 宽度为100% */
    z-index: 1000; /* 确保导航栏在页面最上层 */
    box-shadow: 0 2px 5px rgba(0,0,0,0.2); /* 可选，添加阴影效果 */
    transition: top 0.3s; /* 可选，平滑过渡效果 */
}



/*body*/
.body{
    display: flex;
    justify-content:center;
}
.body_center{
    width:1200px;
    padding: 30px 0 30px 0;
    font-size:16px;
}


.body_top{
    display: flex;
    background-color: #fff;
    color:#000000;
    width:1200px;
    justify-content:space-between;
    font-size: 16px;
}

.product_list_title_bg{
    height: 55px;
    line-height: 55px;
    text-align: center;
    background-color: #08b085;
    color: #fff;
    font-size: 16px;
    margin-bottom: 20px;
    font-weight: bold;
}
.product_list_li:before {
    content: "\2022"; color: #08b085;
    font-size: 16px;
    margin-right: 0.5em;
}

/*footer*/

.footer{
    display: flex;
    background-color: #cccccc;
    color:#cccccc;
    justify-content:center;
    font-size: 16px;
    line-height: 35px;
}



.footer_center{
    display: flex;
    color:#000000;
    width:1200px;
    justify-content:space-between;
}
.footer_nav{

}
.footer_nav a{
    color: #fff;
    margin-right: 20px;
    font-weight: bold;
}

.layui-nav .layui-this:after, .layui-nav-bar{
    background-color:#FFF;
}