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FTP 접속 후 > ftp 접속하시면 sde_design > mobile > product > detail.html

<div module="Product_mobileImage"> 이 안에서 작업하시면 되지 않나요.

상품상세 이미지더보기 모듈

<div class="listImg" module="product_addimage">
    <ul>
        <li>{$add_img}</li>
        <li>{$add_img}</li>
    </ul>
</div>

특정모듈에 종속되지는 않는 듯

<div data-custom="swiper">
    <link
            rel="stylesheet"
            href="https://unpkg.com/swiper/swiper-bundle.min.css"
    />
    <style>
      html,
      body {
        position: relative;
        height: 100%;
      }

      body {
        background: #eee;
        font-family: Helvetica Neue, Helvetica, Arial, sans-serif;
        font-size: 14px;
        color: #000;
        margin: 0;
        padding: 0;
      }

      .swiper {
        width: 100%;
        height: 100%;
      }

      .swiper-slide {
        text-align: center;
        font-size: 18px;
        background: #fff;

        /* Center slide text vertically */
        display: -webkit-box;
        display: -ms-flexbox;
        display: -webkit-flex;
        display: flex;
        -webkit-box-pack: center;
        -ms-flex-pack: center;
        -webkit-justify-content: center;
        justify-content: center;
        -webkit-box-align: center;
        -ms-flex-align: center;
        -webkit-align-items: center;
        align-items: center;
      }

      .swiper-slide img {
        display: block;
        width: 100%;
        height: 100%;
        object-fit: cover;
      }

      body {
        background: #000;
        color: #000;
      }

      .swiper {
        width: 100%;
        height: 300px;
        margin-left: auto;
        margin-right: auto;
      }

      .swiper-slide {
        background-size: cover;
        background-position: center;
      }

      .mySwiper2 {
        height: 80%;
        width: 100%;
      }

      .mySwiper {
        height: 20%;
        box-sizing: border-box;
        padding: 10px 0;
      }

      .mySwiper .swiper-slide {
        width: 25%;
        height: 100%;
        opacity: 0.4;
      }

      .mySwiper .swiper-slide-thumb-active {
        opacity: 1;
      }

      .swiper-slide img {
        display: block;
        width: 100%;
        height: 100%;
        object-fit: cover;
      }
    </style>
    <!-- Swiper -->

    <div
            style="--swiper-navigation-color: #fff; --swiper-pagination-color: #fff"
            class="swiper mySwiper2" module="product_addimage"
    >
        <div class="swiper-wrapper">
            <div class="swiper-slide">
                {$add_img}
            </div>
            <div class="swiper-slide">
                {$add_img}
            </div>
        </div>
        <div class="swiper-button-next"></div>
        <div class="swiper-button-prev"></div>
    </div>
    <div thumbsSlider="" class="swiper mySwiper">
        <div class="swiper-wrapper" module="product_addimage">
            <div class="swiper-slide">
                {$add_img}
            </div>
            <div class="swiper-slide">
                {$add_img}
            </div>
        </div>
    </div>

    <!-- Swiper JS -->
    <script src="https://unpkg.com/swiper/swiper-bundle.min.js"></script>

    <!-- Initialize Swiper -->
    <script>
        var swiper = new Swiper(".mySwiper", {
            spaceBetween: 10,
            slidesPerView: 4,
            freeMode: true,
            watchSlidesProgress: true,
        });
        var swiper2 = new Swiper(".mySwiper2", {
            spaceBetween: 10,
            navigation: {
                nextEl: ".swiper-button-next",
                prevEl: ".swiper-button-prev",
            },
            thumbs: {
                swiper: swiper,
            },
        });
    </script>
</div>