@media screen and (min-width: 768px) {
    /* 第一页样式 - 上图下文字 */
    .section-1 {
        padding: 50px 0;
        text-align: center;
        color: white;
        min-height: 100vh;
        display: flex;
        flex-direction: column;
        justify-content: center;
        align-items: center;
    }

    .image-container {
        width: 80%;
        margin-bottom: 30px;
        margin-left: 10%;
        margin-right: 10%;
        overflow: hidden;
    }

    .main-image {
        width: 100%;
        height: auto;
        object-fit: cover;
        border-radius: 8px;
        box-shadow: 0 4px 20px rgba(0, 0, 0, 0.5);
    }

    .text-container {
        width: 70%;
        margin-left: 15%;
        margin-right: 15%;
        padding: 0 20px;
        font-size: 18px;
        line-height: 2;
        color: white;
        text-align: center;
        opacity: 0.9;
    }

    .text-container p {
        margin: 0;
    }

    /* 第二页样式 - 左文右图 */
    .section-2 {
        padding: 50px 0;
        color: white;
        min-height: 100vh;
        display: flex;
        flex-direction: column;
        justify-content: center;
        align-items: center;
    }

    .content-wrapper {
        width: 80%;
        display: flex;
        flex-wrap: wrap;
        margin-left: 10%;
        margin-right: 10%;
        gap: 30px;
        padding: 0 20px;
        align-items: center;
        justify-content: center;
    }

    .text-column {
        flex: 1;
        min-width: 300px;
        font-size: 18px;
        line-height: 2;
        color: white;
        opacity: 0.9;
    }

    .text-column p {
        margin: 0;
    }

    .image-column {
        flex: 1;
        min-width: 300px;
        position: relative;
    }

    .side-image {
        width: 100%;
        height: auto;
        object-fit: cover;
        border-radius: 8px;
        box-shadow: 0 4px 20px rgba(0, 0, 0, 0.5);
    }

    /* 为 section-2 的图片添加悬停效果 */
    .image-column .side-image {
        transition: transform 0.3s ease, box-shadow 0.3s ease;
    }

    .image-column .side-image:hover {
        transform: scale(1.03);
        box-shadow: 0 8px 25px rgba(0, 0, 0, 0.7);
    }

    /* 第三页样式 - 文字和图片居中对齐 */
    .section-3 {
        padding: 50px 0;
        color: white;
        min-height: 100vh;
        display: flex;
        flex-direction: column;
        justify-content: center;
        align-items: center;
    }

    .center-content {
        width: 80%;
        margin-left: 10%;
        margin-right: 10%;
        display: flex;
        flex-wrap: wrap;
        gap: 30px;
        padding: 0 20px;
        align-items: center;
        justify-content: center;
    }

    .image-wrapper {
        flex: 1;
        min-width: 300px;
        position: relative;
    }

    .center-image {
        width: 100%;
        height: auto;
        object-fit: cover;
        border-radius: 8px;
        box-shadow: 0 4px 20px rgba(0, 0, 0, 0.5);
    }

    .text-wrapper {
        flex: 1;
        min-width: 300px;
        font-size: 18px;
        line-height: 2;
        color: white;
        opacity: 0.9;
        padding: 0 15px;
    }

    .text-wrapper p {
        margin: 0;
    }

    /* 为 section-3 的图片添加悬停效果 */
    .image-wrapper .center-image {
        transition: transform 0.3s ease, box-shadow 0.3s ease;
    }

    .image-wrapper .center-image:hover {
        transform: scale(1.03);
        box-shadow: 0 8px 25px rgba(0, 0, 0, 0.7);
    }

    /* 第四页样式 - 产品展示网格 */
    .section-4 {
        padding: 50px 0;
        color: white;
        min-height: 100vh;
        display: flex;
        flex-direction: column;
        justify-content: center;
        align-items: center;
    }

    .product-title{
        margin-bottom: 150px;
    }
    .product-title h2{
        width: 100%;
        font-size: 60px;
    }
    .product-grid {
        width: 80%;
        margin-left: 10%;
        margin-right: 10%;
        display: flex;
        flex-wrap: wrap;
        gap: 5%;
        padding: 0 20px;
        justify-content: center;
    }

    .product-item {
        flex: 1;
        width: 20%;
        height: 50%;
        cursor: pointer;
        transition: all 0.3s ease;
    }

    .product-card {
        width: 100%;
        height: 50%;
        background-color: transparent;
        border: 1px solid #1e2460;
        border-top-left-radius: 20px;
        border-top-right-radius: 20px;
        overflow: hidden;
        position: relative;
        transition: all 0.3s ease;
    }

    .product-card:hover {
        transform: translateY(-10px);
        border-color: #1e2460;
    }

    .product-image-wrapper {
        width: 100%;
        height: 40%;
        overflow: hidden;
        position: relative;
    }

    .product-image {
        width: 100%;
        height: 100%;
        object-fit: cover;
        transition: all 0.3s ease;
    }

    .product-card:hover .product-image {
        transform: scale(1.05);
    }

    .product-label {
        width: 100%;
        height: 100px;
        display: flex;
        align-items: center;
        justify-content: center;

        background-color: rgba(0, 0, 0, 0.8);
        color: white;
        font-size: 24px;
        font-weight: 500;
        transition: all 0.3s ease;
        position: relative;
    }

    /* 在 product-label 上方添加蓝色横线 */
    .product-label::before {
        content: '';
        position: absolute;
        top: 0;
        left: 0;
        width: 100%;
        height: 1px;
        background-color: #1e2460; /* 与边框颜色一致 */
        transition: all 0.3s ease;
    }

    /* 悬停时横线颜色变化 */
    .product-card:hover .product-label::before {
        background-color: #1e2460; /* 悬停时与边框颜色一致 */
    }
    .product-card:hover .product-label {
        background-color: rgba(0, 0, 0, 0.9);
        transform: scale(1.02);
    }

}