模板:图片交换链接/styles.css

/* ============================================
   图片交换链接
   桌面端：悬停切换
   移动端：直接显示内容层
   ============================================ */

.pcl {
    position: relative;
    overflow: hidden;
    box-shadow: 0 0 0.5em rgba(0, 0, 0, 0.8);
}

/* ---- 表层图片：默认可见 ---- */
.pcl__surface {
    position: absolute;
    inset: 0;
    transition: opacity 0.4s ease;
    z-index: 2;
}
.pcl__surface img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    position: relative;
    z-index: 1;
}

/* ---- 内容层：默认隐藏 ---- */
.pcl__content {
    position: absolute;
    inset: 0;
    opacity: 0;
    transition: opacity 0.4s ease;
    z-index: 1;
}

/* ---- 里图片：占满卡片，淡入 ---- */
.pcl__image {
    position: absolute;
    inset: 0;
    opacity: 0;
    transition: opacity 0.4s ease;
    z-index: 0;
}
.pcl__image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

/* ---- 文本：覆盖在里图片上 ---- */
.pcl__text {
    position: absolute;
    top: 50%;
    left: 50%;
    width: 60%;
    transform: translate(-50%, calc(-50% + 0.8em));
    text-align: center;
    font-size: 1em;
    line-height: 1.2;
    z-index: 1;
}
.pcl__text a {
    color: inherit;
}

/* ---- 悬停切换 ---- */
.pcl:hover .pcl__surface {
    opacity: 0;
}
.pcl:hover .pcl__content {
    opacity: 1;
}
.pcl:hover .pcl__image {
    opacity: 1;
}

/* ---- 移动端：直接显示内容层 ---- */
@media (hover: none) {
    .pcl__surface { opacity: 0; }
    .pcl__content { opacity: 1; }
    .pcl__image   { opacity: 1; }
}