/* ============================================================
       Gallery 页面专用样式
       排版要求：电脑端一行 4 张 / iPad 端一行 4 张 / 手机端一行 2 张
       ============================================================ */

    .gallery-bar {
        display: block;
        margin: 40px auto 0;
        background-color: #1F3F1D;
        padding: 20px 0;
        width: 80%;
        border-radius: 25px;
        text-align: center;
    }

    .gallery-bar h2 {
        color: #ffffff;
        font-size: var(--font-title);
        font-family: 'Franklin Gothic Medium', 'Arial Narrow', Arial, sans-serif;
        font-weight: normal;
        text-align: center;
    }

    .gallery-bar p {
        width: 80%;
        margin: 20px auto 0;
        color: #ffffff;
        font-size: var(--font-text);
        line-height: 1.5;
        font-family: 'Franklin Gothic Medium', 'Arial Narrow', Arial, sans-serif;
        font-weight: normal;
        text-align: center;
    }

    /* ============ 图片网格：默认（电脑端 > 1440px）一行 4 张 ============ */
    .gallery-grid {
        display: grid;
        grid-template-columns: repeat(4, 1fr);
        gap: 20px;
        width: 80%;
        margin: 40px auto 0;
        box-sizing: border-box;
    }

    /* 单张图片取景框 */
    .gallery-grid .zoom {
        position: relative;
        overflow: hidden;
        border-radius: 20px;
        aspect-ratio: 4 / 3;
        box-shadow: 0 0 10px rgba(0, 0, 0, 0.15);
        cursor: pointer;
    }

    .gallery-grid .zoom img {
        display: block;
        width: 100%;
        height: 100%;
        object-fit: cover;
        transform: scale(1);
        transition: transform .4s ease;
        will-change: transform;
    }

    /* 悬停：框大小不变，框内图片放大 */
    .gallery-grid .zoom:hover img {
        transform: scale(1.15);
    }

    /* 图片底部说明文字 */
    .gallery-grid figcaption {
        margin-top: 10px;
        text-align: center;
        font-size: 24px;
        color: #1F3F1D;
        font-family: 'Franklin Gothic Medium', 'Arial Narrow', Arial, sans-serif;
    }

    /* ============ 灯箱：点击图片放大预览 ============ */
    .lightbox {
        display: none;
        position: fixed;
        inset: 0;
        background-color: rgba(0, 0, 0, 0.85);
        z-index: 1000;
        justify-content: center;
        align-items: center;
        padding: 20px;
        box-sizing: border-box;
    }

    .lightbox.show {
        display: flex;
    }

    .lightbox img {
        max-width: 90%;
        max-height: 90%;
        border-radius: 20px;
        object-fit: contain;
    }

    .lightbox .lb-close {
        position: absolute;
        top: 20px;
        right: 30px;
        background: none;
        border: none;
        color: #fff;
        font-size: 50px;
        line-height: 1;
        cursor: pointer;
    }

    .lightbox .lb-prev,
    .lightbox .lb-next {
        position: absolute;
        top: 50%;
        transform: translateY(-50%);
        background-color: rgba(31, 63, 29, 0.8);
        border: none;
        color: #fff;
        font-size: 40px;
        padding: 10px 20px;
        border-radius: 10px;
        cursor: pointer;
    }

    .lightbox .lb-prev {
        left: 20px;
    }

    .lightbox .lb-next {
        right: 20px;
    }

    /* ============ iPad / 平板端：保持一行 4 张 ============ */
    @media (max-width: 1440px) {
        .gallery-grid {
            grid-template-columns: repeat(4, 1fr);
            gap: 16px;
            width: 90%;
        }

        .gallery-bar {
            width: 90%;
        }
    }

    /* ============ 手机端：一行 2 张 ============ */
    @media (max-width: 768px) {
        .gallery-grid {
            grid-template-columns: repeat(2, 1fr);
            gap: 12px;
            width: 90%;
        }

        .gallery-grid figcaption {
            font-size: 18px;
        }

        .gallery-bar {
            width: 90%;
        }

        /* 触屏无悬停，关闭放大效果避免点击后残留 */
        .gallery-grid .zoom img {
            transition: none;
        }

        .gallery-grid .zoom:hover img {
            transform: scale(1);
        }

        .lightbox .lb-prev,
        .lightbox .lb-next {
            font-size: 30px;
            padding: 8px 14px;
        }
    }

    /* 触屏设备统一关闭悬停放大 */
    @media (hover: none) {
        .gallery-grid .zoom img {
            transition: none;
        }

        .gallery-grid .zoom:hover img {
            transform: scale(1);
        }
    }