/* 图片悬停效果 */
.wallpaper-card {
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}
.wallpaper-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 25px -5px rgba(0, 0, 0, 0.1);
}

/* 下载按钮样式 */
.download-btn {
    opacity: 0;
    transition: opacity 0.3s ease;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
}
.wallpaper-card:hover .download-btn {
    opacity: 1;
}

/* Mobile 模式图片容器 1440:2960 比例 */
.mobile-image-container {
    position: relative;
    width: 100%;
    padding-bottom: 200%; /* 2960/1440 = 2.0556 */
    overflow: hidden;
}
.mobile-image-container img {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
}

/* 暗黑模式样式 */
body.dark-mode {
    background-color: #1a1a1a;
    color: #e0e0e0;
}
body.dark-mode header,
body.dark-mode footer {
    background-color: #2d2d2d;
    color: #e0e0e0;
}
body.dark-mode .bg-gray-200 {
    background-color: #3d3d3d;
    color: #e0e0e0;
}
body.dark-mode .border-gray-300 {
    border-color: #4d4d4d;
}