/* 案例页面悬浮效果 - 从下往上滚动的遮罩层 */

/* 案例列表项的基础样式 */
.case-list ul li {
    position: relative;
    overflow: hidden;
}

/* 遮罩层基础样式 */
.case-list .case-summary {
    display: block;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.85);
    position: absolute;
    left: 0;
    top: 100%; /* 初始位置在底部 */
    padding: 5%;
    transition: all 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    transform: translateY(0);
    z-index: 10;
}

/* 遮罩层内容样式 */
.case-list .case-summary p {
    color: #f9f9f9;
    position: absolute;
    left: 0;
    font-size: 20px;
    margin: 0;
}

.case-list .case-summary span {
    font-size: 24px;
    font-weight: bold;
}

.case-list .case-summary .p1 {
    top: 10%;
}

.case-list .case-summary .p2 {
    bottom: 10%;
    font-size: 16px;
    line-height: 1.5;
}

/* 悬浮时遮罩层从下往上滚动到中间位置 */
.case-list ul li:hover .case-summary {
    top: 50%;
    transform: translateY(-6%);
    background: rgba(0, 0, 0, 0.85);
}

/* 图片悬浮缩放效果 */
.case-list ul li img {
    transition: transform 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.case-list ul li:hover img {
    transform: scale(1.1);
}

/* 响应式设计 */
@media screen and (max-width: 768px) {
    .case-list .case-summary {
        padding: 3%;
    }
    
    .case-list .case-summary p {
        font-size: 16px;
    }
    
    .case-list .case-summary span {
        font-size: 20px;
    }
    
    .case-list .case-summary .p2 {
        font-size: 14px;
    }
}

/* 添加一些额外的视觉效果 */
.case-list .case-summary::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: #607d8b99;
    opacity: 0;
    transition: opacity 0.4s ease;
}

.case-list ul li:hover .case-summary::before {
    opacity: 1;
}

/* 确保内容在遮罩层之上 */
.case-list .case-summary p,
.case-list .case-summary span {
    position: relative;
    z-index: 2;
}