/* 歌单列表样式 */
.playlists-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: var(--spacing-lg);
}

.playlist-card {
    display: flex;
    flex-direction: column;
    border-radius: var(--border-radius-lg);
    overflow: hidden;
    background-color: var(--bg-card);
    box-shadow: var(--shadow-sm);
    transition: transform var(--transition-normal) ease, box-shadow var(--transition-normal) ease;
    height: 100%;
}

.playlist-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-md);
}

.playlist-cover-container {
    position: relative;
    padding-top: 100%; /* 1:1 比例 */
    overflow: hidden;
}

.playlist-cover-img {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-normal) ease;
}

.playlist-card:hover .playlist-cover-img {
    transform: scale(1.05);
}

.playlist-card-info {
    padding: var(--spacing-md);
    flex: 1;
    display: flex;
    flex-direction: column;
}

.playlist-card-title {
    font-weight: 600;
    font-size: var(--font-size-md);
    margin-bottom: var(--spacing-xs);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.playlist-card-creator {
    color: var(--text-secondary);
    font-size: var(--font-size-sm);
    margin-bottom: var(--spacing-sm);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.playlist-card-stats {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-top: auto;
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
}

.playlist-card-count {
    display: flex;
    align-items: center;
}

.playlist-card-count .icon {
    margin-right: var(--spacing-xs);
    font-size: var(--font-size-xs);
}

.playlist-card-play {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%) scale(0);
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background-color: var(--primary-color);
    color: white;
    border: none;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    box-shadow: var(--shadow-md);
    opacity: 0;
    transition: opacity var(--transition-normal) ease, transform var(--transition-normal) ease;
    z-index: 1;
}

.playlist-card:hover .playlist-card-play {
    opacity: 1;
    transform: translate(-50%, -50%) scale(1);
}

.playlist-cover-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: rgba(0, 0, 0, 0);
    transition: background-color var(--transition-normal) ease;
}

.playlist-card:hover .playlist-cover-overlay {
    background-color: rgba(0, 0, 0, 0.5);
}

/* 歌单详情页样式 */
.playlist-detail-page {
    padding: var(--spacing-lg) 0;
}

.playlist-header {
    display: flex;
    margin-bottom: var(--spacing-xl);
    padding: var(--spacing-xl);
    border-radius: var(--border-radius-lg);
}

.playlist-cover {
    width: 200px;
    height: 200px;
    min-width: 200px;
    border-radius: var(--border-radius-md);
    overflow: hidden;
    box-shadow: var(--shadow-lg);
    margin-right: var(--spacing-xl);
}

.playlist-cover img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.playlist-info {
    flex: 1;
    display: flex;
    flex-direction: column;
}

.playlist-info h1 {
    font-size: var(--font-size-xxl);
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
    color: var(--text-primary);
}

.playlist-info p {
    margin-bottom: var(--spacing-md);
    color: var(--text-secondary);
    line-height: 1.6;
}

.playlist-stats {
    display: flex;
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-md);
    color: var(--text-secondary);
    font-size: var(--font-size-sm);
}

.playlist-stats span {
    display: flex;
    align-items: center;
}

.playlist-stats span .icon {
    margin-right: var(--spacing-xs);
}

.playlist-actions {
    display: flex;
    gap: var(--spacing-md);
    margin-top: var(--spacing-md);
}

.playlist-actions button {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-sm) var(--spacing-lg);
    border-radius: var(--border-radius-full);
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition-fast) ease;
}

.playlist-actions button.primary {
    background-color: var(--primary-color);
    color: white;
    border: none;
}

.playlist-actions button.primary:hover {
    background-color: var(--primary-light);
    transform: translateY(-2px);
}

.playlist-actions button .icon {
    font-size: var(--font-size-md);
}

/* 歌单标签页 */
.playlist-tabs {
    margin-bottom: var(--spacing-xl);
    border-radius: var(--border-radius-lg);
}

.tab-headers {
    display: flex;
    border-bottom: 1px solid var(--border-color);
    padding: 0 var(--spacing-lg);
}

.tab-header {
    padding: var(--spacing-md) var(--spacing-lg);
    background: none;
    border: none;
    border-bottom: 2px solid transparent;
    font-weight: 500;
    color: var(--text-secondary);
    cursor: pointer;
    transition: all var(--transition-fast) ease;
    margin-bottom: -1px;
}

.tab-header:hover {
    color: var(--text-primary);
}

.tab-header.active {
    color: var(--primary-color);
    border-bottom: 2px solid var(--primary-color);
}

.tab-content {
    padding: var(--spacing-lg);
}

.tab-pane {
    display: none;
}

.tab-pane.active {
    display: block;
}

/* 歌曲列表 */
.song-list-header {
    display: flex;
    padding: var(--spacing-sm) var(--spacing-md);
    border-bottom: 1px solid var(--border-color);
    color: var(--text-secondary);
    font-weight: 500;
    font-size: var(--font-size-sm);
}

.song-index {
    width: 40px;
    text-align: center;
}

.song-title {
    flex: 2;
}

.song-artist {
    flex: 1;
}

.song-album {
    flex: 1;
}

.song-duration {
    width: 80px;
    text-align: right;
}

.song-item {
    display: flex;
    align-items: center;
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--border-radius-md);
    transition: background-color var(--transition-fast) ease;
}

.song-item:hover {
    background-color: var(--bg-hover);
}

.song-item.active {
    background-color: var(--bg-active);
}

.song-item .song-index {
    color: var(--text-secondary);
}

.song-item .song-title {
    font-weight: 500;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.song-item .song-artist,
.song-item .song-album {
    color: var(--text-secondary);
    font-size: var(--font-size-sm);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.song-item .song-duration {
    color: var(--text-secondary);
    font-size: var(--font-size-sm);
}

.song-item-actions {
    display: none;
    margin-left: var(--spacing-sm);
}

.song-item:hover .song-item-actions {
    display: flex;
    gap: var(--spacing-xs);
}

.song-item:hover .song-duration {
    display: none;
}

.song-item:hover .song-item-actions {
    display: flex;
}

.song-action-btn {
    width: 28px;
    height: 28px;
    border-radius: 50%;
    background-color: rgba(0, 0, 0, 0.1);
    color: var(--text-primary);
    border: none;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    font-size: var(--font-size-sm);
    transition: all var(--transition-fast) ease;
}

.song-action-btn:hover {
    background-color: var(--primary-color);
    color: white;
}

/* 评论区域 */
.comments-container {
    padding: var(--spacing-md) 0;
}

.comment-item {
    display: flex;
    margin-bottom: var(--spacing-lg);
    padding-bottom: var(--spacing-lg);
    border-bottom: 1px solid var(--border-color);
}

.comment-avatar {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    overflow: hidden;
    margin-right: var(--spacing-md);
}

.comment-avatar img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.comment-content {
    flex: 1;
}

.comment-user {
    display: flex;
    align-items: center;
    margin-bottom: var(--spacing-xs);
}

.comment-username {
    font-weight: 500;
    margin-right: var(--spacing-sm);
}

.comment-time {
    font-size: var(--font-size-xs);
    color: var(--text-secondary);
}

.comment-text {
    line-height: 1.6;
    margin-bottom: var(--spacing-sm);
}

.comment-actions {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
}

.comment-like {
    display: flex;
    align-items: center;
    cursor: pointer;
}

.comment-like .icon {
    margin-right: var(--spacing-xs);
}

.comment-reply {
    cursor: pointer;
}

/* 相似歌单列表 */
.similar-playlists-container {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
    gap: var(--spacing-lg);
    padding: var(--spacing-md) 0;
}

.similar-playlist-item {
    display: flex;
    flex-direction: column;
    border-radius: var(--border-radius-md);
    overflow: hidden;
    transition: transform var(--transition-normal) ease, box-shadow var(--transition-normal) ease;
}

.similar-playlist-item:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-md);
}

.similar-playlist-cover {
    position: relative;
    padding-top: 100%;
    overflow: hidden;
}

.similar-playlist-cover img {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-normal) ease;
}

.similar-playlist-item:hover .similar-playlist-cover img {
    transform: scale(1.05);
}

.similar-playlist-info {
    padding: var(--spacing-sm);
    background-color: var(--bg-card);
}

.similar-playlist-title {
    font-weight: 500;
    margin-bottom: var(--spacing-xs);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.similar-playlist-creator {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

/* 排行榜样式 */
.charts-page {
    padding: var(--spacing-lg) 0;
}

.charts-section {
    margin-bottom: var(--spacing-xl);
}

.charts-container {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
    gap: var(--spacing-lg);
}

.chart-item {
    display: flex;
    flex-direction: column;
    border-radius: var(--border-radius-lg);
    overflow: hidden;
    background-color: var(--bg-card);
    box-shadow: var(--shadow-sm);
    transition: transform var(--transition-normal) ease, box-shadow var(--transition-normal) ease;
}

.chart-item:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-md);
}

.chart-cover {
    position: relative;
    padding-top: 100%;
    overflow: hidden;
}

.chart-cover img {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-normal) ease;
}

.chart-item:hover .chart-cover img {
    transform: scale(1.05);
}

.chart-info {
    padding: var(--spacing-md);
}

.chart-title {
    font-weight: 600;
    font-size: var(--font-size-md);
    margin-bottom: var(--spacing-xs);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.chart-update {
    color: var(--text-secondary);
    font-size: var(--font-size-sm);
}

/* 榜单详情页 */
.chart-detail-page {
    padding: var(--spacing-lg) 0;
}

.chart-header {
    display: flex;
    margin-bottom: var(--spacing-xl);
    padding: var(--spacing-xl);
    border-radius: var(--border-radius-lg);
}

.chart-content {
    border-radius: var(--border-radius-lg);
    margin-bottom: var(--spacing-xl);
}

/* 响应式设计 */
@media (max-width: 992px) {
    .playlist-header, .chart-header {
        flex-direction: column;
    }
    
    .playlist-cover, .chart-cover {
        margin-right: 0;
        margin-bottom: var(--spacing-lg);
        width: 180px;
        height: 180px;
        align-self: center;
    }
    
    .playlist-info, .chart-info {
        text-align: center;
    }
    
    .playlist-stats, .playlist-actions, 
    .chart-actions {
        justify-content: center;
    }
}

@media (max-width: 768px) {
    .similar-playlists-container,
    .charts-container {
        grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
    }
    
    .song-album {
        display: none;
    }
    
    .playlist-info h1, .chart-info h1 {
        font-size: var(--font-size-xl);
    }
}

@media (max-width: 576px) {
    .playlists-grid,
    .similar-playlists-container,
    .charts-container {
        grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
    }
    
    .song-artist {
        display: none;
    }
    
    .song-title {
        flex: 1;
    }
    
    .playlist-cover, .chart-cover {
        width: 150px;
        height: 150px;
    }
    
    .playlist-actions, .chart-actions {
        flex-wrap: wrap;
    }
}