/* 全局样式 */
body {
    font-family: Arial, sans-serif;
    margin: 0;
    padding: 0;
}

header {
    background-color: #fff;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

nav {
    display: flex;
    align-items: center;
    padding: 10px 20px;
}

.logo {
    height: 50px;
    margin-right: 20px;
}

nav ul {
    list-style-type: none;
    margin: 0;
    padding: 0;
    display: flex;
}

nav ul li {
    position: relative;
    margin-right: 20px;
}

nav ul li a {
    display: block;
    color: #333;
    text-decoration: none;
    padding: 10px;
}

.dropdown-content {
    display: none;
    position: absolute;
    background-color: #f9f9f9;
    min-width: 160px;
    box-shadow: 0 8px 16px rgba(0, 0, 0, 0.2);
    z-index: 1;
}

.dropdown-content a {
    color: #333;
    padding: 12px 16px;
    text-decoration: none;
    display: block;
}

.dropdown:hover .dropdown-content {
    display: block;
}

/* 首页分隔栏和 GIF 轮换区域 */
.left-divider,
.right-divider {
    position: fixed;
    top: 0;
    width: 5%;
    height: 100%;
    background-color: #fff;
    z-index: -1;
}

.left-divider {
    left: 0;
}

.right-divider {
    right: 0;
}

.slider-container {
    width: 90%;
    margin: 0 auto;
    position: relative;
    overflow: hidden;
}

.slider-image {
    width: 100%;
    display: none;
}

.slider-image.active {
    display: block;
}

/* 产品页图片样式 */
.product-image {
    width: 100%;
    display: block;
}

/* 响应式设计 */
@media (max-width: 768px) {
    nav {
        flex-direction: column;
        align-items: flex-start;
    }

    nav ul {
        flex-direction: column;
    }

    .dropdown-content {
        position: static;
    }

    .left-divider,
    .right-divider {
        display: none;
    }

    .slider-container {
        width: 100%;
    }
}