/* ========================================
   Product Mega Menu Styles - Full Width
   ======================================== */

/* 下拉菜单基础样式 - 满屏宽度 */
.show {
    display: block !important;
    opacity: 1 !important;
    visibility: visible !important;
}

.dropdown-menu.menu-product-w {
    display: block;
    opacity: 0;
    visibility: hidden;
    position: fixed;
    top: 114px;
    left: 0;
    right: 0;
    width: 100vw;
    max-width: 100vw;
    padding: 0;
    margin: 0;
    background-color: rgba(255, 255, 255, 1);
    border: none;
    border-radius: 0;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.15);
    z-index: 9999;
    transition: opacity 0.3s ease, visibility 0.3s ease, transform 0.3s ease;
    transform: translateY(-10px);
}

/* 仅在<a>链接悬停时显示下拉菜单 - 精准触发 */
.nav-item.dropdown>a:hover~.dropdown-menu.menu-product-w,
.navbar-nav>li.dropdown>a:hover~.dropdown-menu.menu-product-w {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

/* 划入下拉菜单区域时保持显示 */
.dropdown-menu.menu-product-w:hover {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

/* 覆盖原有的li悬停触发 */
.nav-item.dropdown:hover>.dropdown-menu.menu-product-w,
.navbar-nav>li:hover>.dropdown-menu.menu-product-w {
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
}

/* 划入下拉菜单时覆盖li:hover的隐藏效果 */
.nav-item.dropdown:hover>.dropdown-menu.menu-product-w:hover,
.navbar-nav>li:hover>.dropdown-menu.menu-product-w:hover {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

/* 处理padding区域 - 使用伪元素扩展触发区域 */
.nav-item.dropdown>a,
.navbar-nav>li.dropdown>a {
    position: relative;
}

/* 扩展触发区域到li的底部，创建无缝连接 */
.nav-item.dropdown>a::before,
.navbar-nav>li.dropdown>a::before {
    content: '';
    position: absolute;
    top: 100%;
    left: 0;
    width: 100%;
    height: 30px;
    background: transparent;
    z-index: 9998;
}

/* 确保下拉菜单本身可以接收鼠标事件 */
.dropdown-menu.menu-product-w {
    pointer-events: auto;
}

/* 产品菜单容器 */
.product-menu-container {
    display: block;
    width: 100%;
    max-width: 1400px;
    margin: 0 auto;
    padding: 40px 30px;
    list-style: none;
}

/* 网格布局 */
.product-menu-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 40px;
    width: 100%;
}

/* 列样式 */
.product-menu-column {
    display: flex;
    flex-direction: column;
    gap: 25px;
}

/* 产品分类块 */
.product-category {
    display: block;
}

/* 分类标题 */
.category-title {
    font-size: 15px;
    font-weight: 600;
    color: #333333;
    margin: 0 0 12px 0;
    padding: 0;
    line-height: 1.4;
}

.category-title a {
    font-size: 18px;
    font-weight: 600;
    color: #333333;
    text-decoration: none;
    transition: color 0.2s ease;
}

.category-title a:hover {
    color: #dd582e;
}

/* 分类列表 */
.category-list {
    list-style: none;
    margin: 0;
    padding: 0;
}

.category-list li {
    margin: 0;
    padding: 0;
    line-height: 1.9;
}

.category-list li a {
    display: block;
    font-size: 16px;
    color: #666666;
    text-decoration: none;
    padding: 3px 0;
    transition: all 0.2s ease;
}

.category-list li a:hover {
    color: #dd582e;
    padding-left: 5px;
}

/* 响应式设计 - 大屏幕 */
@media screen and (min-width: 1400px) {
    .product-menu-container {
        max-width: 1600px;
        padding: 50px 0px 50px 140px;
    }

    .product-menu-grid {
        gap: 50px;
    }
}

/* 响应式设计 - 平板 */
@media screen and (max-width: 1199px) {
    .dropdown-menu.menu-product-w {
        top: 100px;
    }

    .product-menu-container {
        max-width: 100%;
        padding: 30px 25px;
    }

    .product-menu-grid {
        grid-template-columns: repeat(4, 1fr);
        gap: 25px;
    }
}

@media screen and (max-width: 991px) {
    .dropdown-menu.menu-product-w {
        top: 95px;
    }

    .product-menu-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 30px;
    }

    .product-menu-container {
        padding: 25px 20px;
    }
}

/* 响应式设计 - 移动端 */
@media screen and (max-width: 767px) {
    .dropdown-menu.menu-product-w {
        position: static;
        width: 100%;
        max-width: 100%;
        transform: none;
        box-shadow: none;
        border-radius: 0;
        opacity: 1;
        visibility: visible;
        display: none;
        top: auto;
    }

    .nav-item.dropdown.active>.dropdown-menu.menu-product-w,
    .navbar-nav>li.active>.dropdown-menu.menu-product-w {
        display: block;
    }

    .product-menu-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }

    .product-menu-container {
        padding: 20px 15px;
        max-width: 100%;
    }

    .category-title {
        font-size: 14px;
    }

    .category-list li a {
        font-size: 12px;
    }
}

/* 确保下拉菜单层级正确 */
.dropdown-menu.menu-product-w {
    z-index: 9999;
}

/* 修复与父级导航的层级关系 */
.navbar-nav>li {
    position: relative;
}

/* 动画效果 - 淡入上滑 */
@keyframes productMenuFadeIn {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* .nav-item.dropdown:hover>.dropdown-menu.menu-product-w,
.navbar-nav>li:hover>.dropdown-menu.menu-product-w {
    animation: productMenuFadeIn 0.3s ease forwards;
} */