/* 响应式设计 */
@media (max-width: 968px) {
    .mv-player-container {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .container {
        padding: 15px;
    }
    
    header {
        flex-direction: column;
        gap: 20px;
    }
    
    .header-controls {
        width: 100%;
        justify-content: space-between;
    }
    
    .logo h1 {
        font-size: 1.8rem;
    }
    
    .hero h2, .mv-hero h2 {
        font-size: 2.2rem;
    }
    
    .music-player {
        padding: 20px;
    }
    
    .song-info {
        flex-direction: column;
        text-align: center;
        gap: 15px;
    }
    
    .album-art {
        width: 120px;
        height: 120px;
    }
    
    .controls {
        gap: 10px;
    }
    
    .play-btn {
        width: 60px;
        height: 60px;
    }
    
    #volumeSlider {
        width: 60px;
    }
    
    .section-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 15px;
    }
    
    .search-box {
        width: 100%;
    }
}

@media (max-width: 480px) {
    .hero h2, .mv-hero h2 {
        font-size: 1.8rem;
    }
    
    .hero p, .mv-hero p {
        font-size: 1rem;
    }
    
    .song-item, .mv-item {
        padding: 12px 15px;
    }
    
    .song-number {
        margin-right: 10px;
    }
    
    .album-art-small {
        width: 40px;
        height: 40px;
        margin-right: 12px;
    }
    
    .mv-thumbnail {
        width: 60px;
        height: 45px;
        margin-right: 12px;
    }
    
    .nav-tabs {
        width: 100%;
        justify-content: center;
    }
    
    .theme-toggle {
        padding: 10px 15px;
    }
}