#B_header{background-color: #131920;padding:0;}
#B_header .badge,#B_header .ba{color:#fff;}
#B_top{background-color: #f85d18;height:72px;}
#B_top .logo img{height: 52px;margin-top:10px;}
#B_top .B-wrap,#B_header .container-fluid{ max-width: 1320px;    align-items: center;padding-left:0;}
#B_top .logo{float:left;}
#B_top .offcanvas-header{float:left;}
#B_top .d-flex{float:right;margin-top:34px;}
#B_top .nav{float:right;margin-right:120px;    font-size: 28px;color:#fff;margin-top:10px;}
.B_x1{background-color: #fff; height:80x; text-align: center;padding:10px 0;}
.B_x1 a{padding:0 30px;}
#product-video{width:95.5%;margin:0 2%;}
.d-lg-block{background-color: #fff;padding:15px;}
.brand-item{background-color: #fff;}
.nav-item i{color:#fff;}
#head_a1{left:100%;}
#head_a2{left:350%;}
.byj30{

    box-shadow: 0px 5px 15px rgba(0, 0, 0, 0.3); /* x偏移, y偏移, 阴影模糊半径, 颜色 */
}
.na_y{padding-left:30px;}

.navbar-nav .nav-item{border-bottom:1px solid  #fff;}
.pages-wrap{background-color: #fff;padding:5px; }

.card-body{ }
.card-body .container{margin:0;padding:0;}
#head_a0{left:250%;}
/*  导航  */
#head_aa{left:0; background-repeat: repeat-y;overflow:hidden;background-image: url('/baibai/img/dhdt.jpg'); position: absolute;
    top:58px;}
.b_mda{ position: relative;}
.na_0{   position: absolute;
    background-image: url('/baibai/img/dhdt.jpg');margin:0;padding:0;
    z-index: 9999; /* Ensure it's above other content */
}
ul li {
    list-style-type: none;
}
/* 设置背景颜色 */
.na_a{ position: absolute; /* 设置为absolute进行绝对定位 */
    top: 10px; /* 距离容器顶部50像素 */
    left: 25%; /* 距离容器左侧50像素 */

    width: 750px;
    background-color:#ffffff;
}
.na_b li{padding:5px;}
.na_b,.nb_a{float:left;}
.nb_img{width:380px;}

.module-img-text-slideshow .text-wrap .title {
    text-shadow: 2px 2px 4px #000000; /* 水平2px，垂直2px，模糊半径4px，颜色黑色 */
}
.module-image-403 .image-wrap .title,.module-image-403 .image-wrap .sub-title{
    text-shadow: 2px 2px 4px #000000; /* 水平2px，垂直2px，模糊半径4px，颜色黑色 */
}
@media (min-width: 1200px) {
    .module-image-403 .image-wrap .title {
        font-size: 23px;
    }
}

.my-auto{margin-left:20px;}
.vid{margin:30px;}