/* 基础导航样式 */
#kt_app_header_container {
    display: flex !important;
    align-items: center !important;
    justify-content: space-between !important;
    width: 100% !important;
    padding: 0 30px !important;
    margin: 0 auto !important;
    height: 85px !important;
    box-sizing: border-box !important;
}

.app-header {
    background-color: #ffffff !important;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05) !important;
    position: sticky !important;
    top: 0 !important;
    z-index: 999 !important;
}

/* Logo样式 */
.header-logo {
    flex: 0 0 auto !important;
    margin-right: 40px !important;
}

.header-logo img {
    height: 50px !important;
}

/* 主菜单样式 */
.menu {
    display: flex !important;
    list-style: none !important;
    margin: 0 !important;
    padding: 0 !important;
}

.menu-item {
    position: relative !important; /* 关键：用于二级菜单定位 */
    margin: 0 12px !important;
}

/* 主菜单链接样式 */
.menu-link {
    display: block !important;
    padding: 15px 20px !important;
    color: #333 !important;
    text-decoration: none !important;
    font-weight: 500 !important;
    font-size: 15px !important;
    transition: all 0.3s ease !important;
    border-radius: 4px !important;
}

/* 主菜单悬停效果 */
.menu-link:hover {
    color: #165DFF !important;
    background-color: #f0f7ff !important;
}

/* 二级菜单样式 - 默认隐藏 */
.menu-sub {
    visibility: hidden !important; /* 隐藏但保留空间 */
    opacity: 0 !important; /* 透明 */
    position: absolute !important;
    top: 100% !important; /* 位于主菜单项下方 */
    left: 0 !important;
    min-width: 220px !important;
    background-color: #ffffff !important;
    border-radius: 8px !important;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1) !important;
    padding: 15px 0 !important;
    margin: 5px 0 0 0 !important;
    list-style: none !important;
    z-index: 9999 !important; /* 确保在其他内容上方 */
    transform: translateY(10px) !important; /* 初始位置向下偏移 */
    transition: all 0.3s cubic-bezier(0.34, 1.56, 0.64, 1) !important; /* 平滑过渡 */
}

/* 鼠标悬停主菜单项时显示二级菜单 */
.menu-item:hover .menu-sub {
    visibility: visible !important;
    opacity: 1 !important;
    transform: translateY(0) !important; /* 移动到正常位置 */
}

/* 二级菜单链接样式 */
.menu-sub .menu-link {
    padding: 10px 20px !important;
    color: #666 !important;
    font-size: 14px !important;
}

/* 二级菜单悬停效果 */
.menu-sub .menu-link:hover {
    color: #165DFF !important;
    background-color: #f0f7ff !important;
    padding-left: 25px !important; /* 悬停时左移效果 */
}

/* 立即体验按钮 */
.header-cta {
    flex: 0 0 auto !important;
    margin-left: 20px !important;
}

.cta-button {
    display: inline-block !important;
    background-color: #165DFF !important;
    color: #ffffff !important;
    padding: 12px 24px !important;
    text-decoration: none !important;
    border-radius: 6px !important;
    font-weight: 600 !important;
    font-size: 15px !important;
    transition: all 0.3s ease !important;
}

.cta-button:hover {
    background-color: #0E42D2 !important;
    transform: translateY(-3px) !important;
    box-shadow: 0 5px 15px rgba(22, 93, 255, 0.2) !important;
}

/* 响应式调整 */
@media (max-width: 768px) {
    .menu {
        flex-direction: column !important;
        position: absolute !important;
        top: 85px !important;
        left: 0 !important;
        width: 100% !important;
        background: white !important;
        box-shadow: 0 10px 10px rgba(0,0,0,0.1) !important;
        display: none !important;
    }
    
    .menu-item {
        margin: 0 !important;
    }
    
    .menu-link {
        padding: 12px 20px !important;
    }
    
    .menu-sub {
        position: static !important;
        padding-left: 20px !important;
        box-shadow: none !important;
    }
}