* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: "Microsoft YaHei", sans-serif;
        }

        body {
            background-color: #f5f5f5;
            overflow-x: hidden;
        }

        #header {
            position: relative;
            width: 100%;
            height: auto;
        }

        .head {
            width: 100%;
            height: 44px;
            position: absolute;
            top: 0;
            left: 0px;
            z-index: 100;
            background-size: 85% 100%;
            background-image: url(/_upload/tpl/0b/d3/3027/template3027/product_images/dh_1.png);
        }

        .head-bg-wrapper {
            position: absolute;
            top: 0;
            left: 50%;
            transform: translateX(-50%);
            width: 85%;
            /* 与 background-size 一致 */
            height: 100%;
            pointer-events: none;
            /* 防止遮挡点击 */
        }

        .navbar {
            width: 100%;
            height: 38px;
            display: flex;
            justify-content: flex-end;
            align-items: center;
        }

        .head .navbox {
            position: absolute;
            top: 0;
            left: 61%;
            transform: translateX(-50%);
            height: 38px;
            display: flex;
            align-items: center;
            pointer-events: auto;
        }

        .head .navbox .wp_nav {
            height: 38px;
            display: flex;
            list-style: none;
            margin: 0;
            padding: 0;
            border: none;
        }

        .head .navbox .wp_nav li.nav-item {
            margin: 0;
            padding: 0;
        }

        .head .navbox .wp_nav li.nav-item a {
            font-size: 17px;
            font-family: 'Microsoft Yahei';
            color: #FFFFFF;
            display: block;
            text-decoration: none;
            height: 38px;
            line-height: 38px;
            padding: 0 14px;
            pointer-events: auto;
        }

        .head .navbox .wp_nav li.nav-item a:hover,
        .navbar .navbox .wp_nav li.nav-item a.parent {
            color: #fc360a;
            font-family: 'Microsoft Yahei';
background-image: none
        }

        .header-banner {
            position: relative;
            height: 400px;
            background: linear-gradient(135deg, #1a6fae 0%, #0d3b66 100%);
            display: flex;
            align-items: center;
            justify-content: center;
            overflow: hidden;
            width: 100%;
            margin-top: 0px;
        }

        .header-banner::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            opacity: 0.2;
            z-index: 1;
        }

        .header-content {
            text-align: center;
            color: white;
            z-index: 2;
        }

        .header-content h1 {
            font-size: 48px;
            font-weight: bold;
            margin-bottom: 15px;
            opacity: 0;
            transform: translateX(-100px);
            transition: opacity 1s ease, transform 1s ease;
        }

        .header-content h1.visible {
            opacity: 1;
            transform: translateX(0);
        }

        .header-content h2 {
            font-size: 36px;
            font-weight: normal;
            opacity: 0;
            transform: translateX(100px);
            transition: opacity 1s ease, transform 1s ease;
        }

        .header-content h2.visible {
            opacity: 1;
            transform: translateX(0);
        }

        .nav-container {
            background: white;
            border-bottom: 1px solid #eee;
            padding: 15px 0;
            width: 100%;
        }

        .nav-tabs {
            display: flex;
            justify-content: center;
            flex-wrap: wrap;
            gap: 40px;
            margin: 0 auto;
            padding: 0 20px;
        }

        .nav-tab {
            padding: 12px 20px;
            border-radius: 25px;
            font-size: 20px;
            cursor: pointer;
            transition: all 0.3s;
        }

        .nav-tab.active {
            background: #00c897;
            color: white;
        }

        .main-content {
            width: 100%;
            margin: 15px auto;
            padding: 30px;
            background: white;
            box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
        }

        .product-section {
            display: flex;
            gap: 40px;
            margin-bottom: 50px;
        }

        .product-content {
            display: none;
        }

        .product-content.active {
            display: block;
        }

        .product-image {
            flex: 1;
            min-width: 400px;
            opacity: 0;
            transform: translateX(-50px);
            transition: opacity 0.8s ease, transform 0.8s ease;
        }

        .product-image.visible {
            opacity: 1;
            transform: translateX(0);
        }

        .product-image img {
            width: 100%;
            height: 400px;
            object-fit: contain;
            border-radius: 12px;
            transition: opacity 0.5s ease-in-out;
        }

        .product-info {
            flex: 2;
            opacity: 0;
            transform: translateX(50px);
            transition: opacity 0.8s ease, transform 0.8s ease;
        }

        .product-info.visible {
            opacity: 1;
            transform: translateX(0);
        }

        .product-info h3 {
            font-size: 40px;
            margin-top: 35px;
            margin-left: 25px;
            color: #333;
            line-height: 1.3;
        }

        .product-info p {
            font-size: 28px;
            color: #666;
            line-height: 1.8;
            margin-top: 25px;
            margin-left: 25px;
        }

        .sub-nav {
            display: flex;
            gap: 15px;
            margin: 30px 0;
            padding: 0 30px;
            opacity: 0;
            transform: translateX(50px);
            transition: opacity 0.8s ease, transform 0.8s ease;
        }

        .sub-nav.visible {
            opacity: 1;
            transform: translateX(0);
        }

        .sub-tab {
            padding: 12px 25px;
            border-radius: 25px;
            font-size: 20px;
            cursor: pointer;
            transition: all 0.3s;
            border: 1px solid #ddd;
        }

        .sub-tab.active {
            background: #00c897;
            color: white;
            border-color: #00c897;
        }

        .content-section {
            margin-top: 30px;
            padding: 30px;
            background: #f9f9f9;
            border-radius: 12px;
            margin: 0 30px 30px 30px;
            opacity: 0;
            transform: translateY(30px);
            transition: opacity 0.8s ease, transform 0.8s ease;
            display: none;
        }

        .content-section.visible {
            opacity: 1;
            transform: translateY(0);
            display: block;
        }

        .section-title {
            font-size: 20px;
            font-weight: bold;
            margin-bottom: 15px;
            padding-bottom: 8px;
            border-bottom: 2px solid #ddd;
        }

        .item-list {
            display: flex;
            flex-wrap: wrap;
            gap: 15px;
            margin-top: 15px;
        }

        .item {
            padding: 10px 20px;
            background: #fff;
            border: 1px solid #eee;
            border-radius: 8px;
            font-size: 16px;
        }

        .video-container {
            display: none;
            margin-top: 30px;
            padding: 30px;
            background: #f9f9f9;
            border-radius: 12px;
            margin: 0 30px 30px 30px;
            opacity: 0;
            transform: translateY(30px);
            transition: opacity 0.8s ease, transform 0.8s ease;
        }

        .video-container.visible {
            opacity: 1;
            transform: translateY(0);
            display: block;
        }

        .video-wrapper {
            position: relative;
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding-top: 40.25%;
            background: #000;
            border-radius: 8px;
        }

        .video-container video {
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            object-fit: contain;
        }

        /* 下拉容器：相对定位 */
        .head .navbox .wp_nav li.nav-item.dropdown {
            position: relative;
        }

        /* 下拉菜单：默认隐藏 */
        .head .navbox .wp_nav li.nav-item .dropdown-menu {
            position: absolute;
            top: 100%;
            left: 0;
            width: 280px;
            /* 根据内容调整 */
            background: #ffffff;
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
            list-style: none;
            margin: 0;
            padding: 8px 0;
            z-index: 101;
            /* 高于 .head 的 z-index:100 */
            display: none;
            border-radius: 4px;
        }

        /* 下拉项 */
        .head .navbox .wp_nav li.nav-item .dropdown-menu li {
            margin: 0;
            padding: 0;
        }

        .head .navbox .wp_nav li.nav-item .dropdown-menu a {
            display: block;
            padding: 10px 20px;
            color: #333 !important;
            font-size: 14px;
            text-decoration: none;
            line-height: 1.4;
        }

        .head .navbox .wp_nav li.nav-item .dropdown-menu a:hover {
            background-color: #f8f8f8;
            color: #fc360a;
        }

        /* 悬停显示下拉 */
        .head .navbox .wp_nav li.nav-item.dropdown:hover .dropdown-menu {
            display: block;
        }

        /* 主菜单项悬停样式保持一致 */
        .head .navbox .wp_nav li.nav-item.dropdown:hover>a {
            color: #fc360a;
            background-image: none;
        }

        @media (max-width: 768px) {
            .head .navbox .wp_nav {
                flex-direction: row;
            }

            .head .navbox .wp_nav li.nav-item a {
                padding: 0 8px;
                font-size: 14px;
            }

            .header-banner {
                height: 300px;
                margin-top: 38px;
            }

            .header-content h1 {
                font-size: 32px;
                transform: translateX(-50px);
            }

            .header-content h2 {
                font-size: 24px;
                transform: translateX(50px);
            }

            .product-section {
                flex-direction: column;
            }

            .product-image {
                min-width: auto;
                transform: translateY(50px);
            }

            .product-info {
                transform: translateY(-50px);
            }

            .product-image img {
                height: 300px;
            }

            .nav-tabs {
                justify-content: flex-start;
                overflow-x: auto;
            }
        }