/* 案例中心 */
.case-card {
    border: none;
    border-radius: 15px;
    overflow: hidden;
    box-shadow: 0 5px 20px rgba(0,0,0,0.05);
    transition: all 0.3s;
    height: 100%;
}

.case-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 35px rgba(0,0,0,0.1);
}

.case-tag {
    position: absolute;
    top: 20px;
    left: 20px;
    background: var(--bs-primary);
    color: white;
    padding: 5px 15px;
    border-radius: 50px;
    font-size: 0.8rem;
    z-index: 10;
}

/* 修正无图片时标签遮挡标题的问题 */
.case-card .case-tag + .card-body {
    padding-top: 60px !important;
}

.case-card img {
    height: 250px;
    object-fit: cover;
}

/* 下载中心 */
.download-item {
    padding: 1.5rem;
    background: white;
    border-radius: 12px;
    border: 1px solid #eee;
    margin-bottom: 1rem;
    transition: all 0.3s;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.download-item:hover {
    border-color: var(--bs-primary);
    background: #fdfdfd;
}

.file-icon {
    font-size: 2rem;
    color: #dc3545; /* PDF Red */
    margin-right: 20px;
}