* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
        min-height: 100vh;
        color: #333;
        transition: all 0.3s ease;
    }

    /* Light mode (default) */
    body.light-mode {
        background: linear-gradient(135deg, #f5f7fa 0%, #e4e8ed 100%);
    }

    /* Dark mode */
    body.dark-mode {
        background: linear-gradient(135deg, #1a1a2e 0%, #0f0f1e 100%);
        color: #e0e0e0;
    }

    .container {
        max-width: 1400px;
        margin: 0 auto;
        padding: 30px 20px;
    }

    .header {
        text-align: center;
        margin-bottom: 30px;
    }

    .header-controls {
        display: flex;
        justify-content: space-between;
        align-items: center;
        margin-bottom: 15px;
    }

    .header-buttons {
        display: flex;
        gap: 10px;
    }

    .theme-toggle {
        background: rgba(255, 255, 255, 0.8);
        border: 1px solid rgba(0, 0, 0, 0.1);
        border-radius: 50%;
        width: 40px;
        height: 40px;
        cursor: pointer;
        transition: all 0.3s;
        display: flex;
        align-items: center;
        justify-content: center;
        font-size: 18px;
    }

    .theme-toggle:hover {
        background: rgba(102, 126, 234, 0.1);
        transform: scale(1.1);
    }

    body.dark-mode .theme-toggle {
        background: rgba(30, 30, 45, 0.8);
        border: 1px solid rgba(255, 255, 255, 0.2);
    }

    .play-modes {
        margin: 15px 0;
    }

    .play-modes select {
        padding: 8px 16px;
        background: rgba(255, 255, 255, 0.9);
        border: 1px solid rgba(0, 0, 0, 0.1);
        border-radius: 8px;
        font-size: 13px;
        cursor: pointer;
    }

    body.dark-mode .play-modes select {
        background: rgba(30, 30, 45, 0.8);
        border: 1px solid rgba(255, 255, 255, 0.2);
        color: #e0e0e0;
    }

    .header h1 {
        font-size: 2rem;
        font-weight: 700;
        background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
        -webkit-background-clip: text;
        -webkit-text-fill-color: transparent;
        background-clip: text;
        margin-bottom: 8px;
    }

    .header p {
        font-size: 0.9rem;
        color: #888;
    }

    .main-container {
        display: grid;
        grid-template-columns: 1fr 1fr;
        gap: 30px;
        align-items: start;
    }

    @media (max-width: 900px) {
        .main-container {
            grid-template-columns: 1fr;
        }
    }


    /* 音频频谱可视化 */
    .visualizer-container {
        width: 100%;
        height: 100px;
        position: absolute;
        bottom: 0;
        left: 0;
        opacity: 0.3;
        pointer-events: none;
    }

    .visualizer {
        display: flex;
        align-items: flex-end;
        justify-content: center;
        height: 100%;
        gap: 2px;
    }

    .visualizer-bar {
        width: 3px;
        background: linear-gradient(to top, #667eea, #764ba2);
        transition: height 0.1s;
        border-radius: 2px 2px 0 0;
    }

    /* 歌单管理 */
    .playlist-section {
        margin-top: 20px;
        padding: 20px;
        background: rgba(255, 255, 255, 0.8);
        border-radius: 15px;
        border: 1px solid rgba(0, 0, 0, 0.08);
    }

    body.dark-mode .playlist-section {
        background: rgba(30, 30, 45, 0.8);
        border: 1px solid rgba(255, 255, 255, 0.1);
    }

    .playlist-controls {
        display: flex;
        gap: 10px;
        margin-bottom: 15px;
    }

    .playlist-controls input {
        flex: 1;
        padding: 10px;
        border: 1px solid rgba(0, 0, 0, 0.1);
        border-radius: 8px;
        font-size: 14px;
    }

    body.dark-mode .playlist-controls input {
        background: rgba(255, 255, 255, 0.1);
        color: #e0e0e0;
        border: 1px solid rgba(255, 255, 255, 0.2);
    }

    .playlist-btn {
        padding: 10px 20px;
        border: none;
        border-radius: 8px;
        background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
        color: white;
        cursor: pointer;
        font-size: 14px;
        transition: all 0.3s;
    }

    .playlist-btn:hover {
        transform: translateY(-2px);
        box-shadow: 0 4px 15px rgba(102, 126, 234, 0.3);
    }

    .playlist-list {
        max-height: 300px;
        overflow-y: auto;
    }

    .playlist-item {
        display: flex;
        justify-content: space-between;
        align-items: center;
        padding: 10px;
        margin-bottom: 8px;
        background: rgba(0, 0, 0, 0.03);
        border-radius: 8px;
        cursor: pointer;
        transition: all 0.3s;
    }

    .playlist-item:hover {
        background: rgba(102, 126, 234, 0.1);
    }

    .playlist-item.playing {
        background: rgba(102, 126, 234, 0.2);
    }

    .playlist-name {
        font-weight: 600;
    }

    .playlist-count {
        font-size: 12px;
        color: #888;
    }

    /* 通知样式 */
    .notification {
        position: fixed;
        top: 20px;
        right: 20px;
        padding: 15px 20px;
        background: rgba(255, 255, 255, 0.9);
        border-radius: 10px;
        box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
        display: flex;
        align-items: center;
        gap: 10px;
        transform: translateX(400px);
        transition: transform 0.3s ease;
        z-index: 1001;
    }

    body.dark-mode .notification {
        background: rgba(30, 30, 45, 0.9);
        box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
    }

    .notification.show {
        transform: translateX(0);
    }

    .notification-icon {
        font-size: 20px;
    }

    .notification-message {
        font-size: 14px;
        font-weight: 500;
    }

    /* 统计信息 */
    .stats-section {
        margin-top: 20px;
        padding: 20px;
        background: rgba(255, 255, 255, 0.8);
        border-radius: 15px;
        border: 1px solid rgba(0, 0, 0, 0.08);
    }

    body.dark-mode .stats-section {
        background: rgba(30, 30, 45, 0.8);
        border: 1px solid rgba(255, 255, 255, 0.1);
    }

    .stats-grid {
        display: grid;
        grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
        gap: 15px;
    }

    .stat-item {
        text-align: center;
        padding: 15px;
        background: rgba(0, 0, 0, 0.03);
        border-radius: 10px;
    }

    .stat-value {
        font-size: 24px;
        font-weight: 700;
        background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
        -webkit-background-clip: text;
        -webkit-text-fill-color: transparent;
        background-clip: text;
    }

    .stat-label {
        font-size: 12px;
        color: #888;
        margin-top: 5px;
    }

    /* 推荐歌曲 */
    .recommendations-section {
        margin-top: 20px;
        padding: 20px;
        background: rgba(255, 255, 255, 0.8);
        border-radius: 15px;
        border: 1px solid rgba(0, 0, 0, 0.08);
    }

    body.dark-mode .recommendations-section {
        background: rgba(30, 30, 45, 0.8);
        border: 1px solid rgba(255, 255, 255, 0.1);
    }

    .recommendations-title {
        font-size: 18px;
        font-weight: 600;
        margin-bottom: 15px;
    }

    .recommendation-item {
        display: flex;
        align-items: center;
        gap: 12px;
        padding: 10px;
        border-radius: 8px;
        cursor: pointer;
        transition: all 0.3s;
    }

    .recommendation-item:hover {
        background: rgba(102, 126, 234, 0.1);
    }

    .recommendation-cover {
        width: 50px;
        height: 50px;
        border-radius: 6px;
        background: rgba(0, 0, 0, 0.05);
        display: flex;
        align-items: center;
        justify-content: center;
        font-size: 20px;
    }

    .recommendation-info {
        flex: 1;
    }

    .recommendation-name {
        font-weight: 600;
        margin-bottom: 4px;
    }

    .recommendation-artist {
        font-size: 12px;
        color: #888;
    }

    /* 数据管理 */
    .data-controls {
        display: flex;
        gap: 10px;
        justify-content: center;
        margin: 20px 0;
    }

    .data-btn {
        padding: 10px 20px;
        border: none;
        border-radius: 8px;
        cursor: pointer;
        font-size: 14px;
        transition: all 0.3s;
    }

    .btn-export {
        background: linear-gradient(135deg, #10b981 0%, #059669 100%);
        color: white;
    }

    .btn-import {
        background: linear-gradient(135deg, #f59e0b 0%, #d97706 100%);
        color: white;
    }

    .btn-backup {
        background: linear-gradient(135deg, #8b5cf6 0%, #7c3aed 100%);
        color: white;
    }

    .btn-clear {
        background: linear-gradient(135deg, #ef4444 0%, #dc2626 100%);
        color: white;
    }

    .data-btn:hover {
        transform: translateY(-2px);
        box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
    }

    /* 搜索区域 */
    .search-panel {
        background: rgba(255, 255, 255, 0.8);
        backdrop-filter: blur(20px);
        border-radius: 20px;
        padding: 25px;
        padding-bottom: 10px;
        border: 1px solid rgba(0, 0, 0, 0.08);
        box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
        max-height: 85vh;
        display: flex;
        flex-direction: column;
    }

    body.dark-mode .search-panel {
        background: rgba(30, 30, 45, 0.8);
        border: 1px solid rgba(255, 255, 255, 0.1);
        box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
    }

    .search-panel > * {
        flex-shrink: 0;
    }

    .search-panel > .song-list {
        flex: 1;
        overflow: hidden;
    }

    .search-panel h2 {
        font-size: 1.1rem;
        margin-bottom: 20px;
        color: #333;
        font-weight: 600;
    }

    .search-box {
        display: flex;
        gap: 10px;
        margin-bottom: 20px;
    }

    .search-box input {
        flex: 1;
        padding: 14px 20px;
        background: rgba(255, 255, 255, 0.9);
        border: 1px solid rgba(0, 0, 0, 0.1);
        border-radius: 12px;
        font-size: 15px;
        color: #333;
        transition: all 0.3s;
    }

    body.dark-mode .search-box input {
        background: rgba(255, 255, 255, 0.1);
        color: #e0e0e0;
        border: 1px solid rgba(255, 255, 255, 0.2);
    }

    .search-box input:focus {
        outline: none;
        border-color: #667eea;
        background: #fff;
        box-shadow: 0 0 20px rgba(102, 126, 234, 0.15);
    }

    .search-box input::placeholder {
        color: #999;
    }

    .search-box select {
        padding: 0 16px;
        background: rgba(255, 255, 255, 0.9);
        border: 1px solid rgba(0, 0, 0, 0.1);
        border-radius: 12px;
        font-size: 14px;
        color: #333;
        cursor: pointer;
        transition: all 0.3s;
    }

    .search-box select:hover {
        background: #fff;
    }

    .search-box select:focus {
        outline: none;
        border-color: #667eea;
    }

    .search-box select option {
        background: #fff;
        color: #333;
    }

    .search-btn {
        padding: 0 28px;
        background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
        color: white;
        border: none;
        border-radius: 12px;
        font-size: 15px;
        font-weight: 600;
        cursor: pointer;
        transition: all 0.3s;
        box-shadow: 0 4px 15px rgba(102, 126, 234, 0.4);
    }

    .search-btn:hover {
        transform: translateY(-2px);
        box-shadow: 0 6px 20px rgba(102, 126, 234, 0.5);
    }

    .search-btn:active {
        transform: translateY(0);
    }

    /* 歌曲列表 */
    .song-list {
        max-height: 450px;
        overflow-y: auto;
        padding-right: 5px;
    }

    .song-list::-webkit-scrollbar {
        width: 6px;
    }

    .song-list::-webkit-scrollbar-track {
        background: rgba(0, 0, 0, 0.05);
        border-radius: 3px;
    }

    .song-list::-webkit-scrollbar-thumb {
        background: rgba(0, 0, 0, 0.2);
        border-radius: 3px;
    }

    .song-list::-webkit-scrollbar-thumb:hover {
        background: rgba(0, 0, 0, 0.3);
    }

    .song-item {
        display: flex;
        align-items: center;
        padding: 12px 14px;
        border-radius: 12px;
        cursor: pointer;
        transition: all 0.3s;
        margin-bottom: 8px;
        background: rgba(255, 255, 255, 0.6);
        border: 1px solid transparent;
        position: relative;
    }

    .song-item:hover {
        background: #fff;
        border-color: rgba(102, 126, 234, 0.2);
        transform: translateX(4px);
        box-shadow: 0 2px 8px rgba(0, 0, 0, 0.06);
    }

    .song-item.active {
        background: linear-gradient(135deg, rgba(102, 126, 234, 0.1) 0%, rgba(118, 75, 162, 0.1) 100%);
        border-color: #667eea;
    }

    .song-item img {
        width: 50px;
        height: 50px;
        border-radius: 10px;
        margin-right: 14px;
        object-fit: cover;
        box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
    }

    .song-info {
        flex: 1;
        min-width: 0;
    }

    .song-name {
        font-weight: 600;
        margin-bottom: 4px;
        font-size: 15px;
        white-space: nowrap;
        overflow: hidden;
        text-overflow: ellipsis;
        color: #333;
    }

    .song-item.active .song-name {
        color: #667eea;
    }

    .song-artist {
        font-size: 13px;
        color: #888;
    }

    /* 播放器面板 */
    .player-panel {
        background: rgba(255, 255, 255, 0.8);
        backdrop-filter: blur(20px);
        border-radius: 20px;
        padding: 30px;
        border: 1px solid rgba(0, 0, 0, 0.08);
        box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
    }

    body.dark-mode .player-panel {
        background: rgba(30, 30, 45, 0.8);
        border: 1px solid rgba(255, 255, 255, 0.1);
        box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
    }

    .now-playing-section {
        display: flex;
        flex-direction: column;
        align-items: center;
    }

    .album-cover-container {
        position: relative;
        margin-bottom: 25px;
    }

    .album-cover {
        width: 280px;
        height: 280px;
        border-radius: 20px;
        overflow: hidden;
        box-shadow: 0 20px 50px rgba(0, 0, 0, 0.15);
        transition: all 0.5s;
    }

    .album-cover:hover {
        transform: scale(1.02);
    }

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

    .album-cover .placeholder {
        width: 100%;
        height: 100%;
        display: flex;
        align-items: center;
        justify-content: center;
        font-size: 80px;
        background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    }

    /* 正在播放动画 */
    .album-cover.playing {
        animation: pulse 2s ease-in-out infinite;
    }

    @keyframes pulse {
        0%, 100% { box-shadow: 0 20px 50px rgba(102, 126, 234, 0.3); }
        50% { box-shadow: 0 20px 60px rgba(102, 126, 234, 0.5); }
    }

    .song-details {
        text-align: center;
        margin-bottom: 25px;
    }

    .song-details h2 {
        font-size: 1.5rem;
        font-weight: 700;
        margin-bottom: 8px;
        color: #333;
    }

    .song-details p {
        color: #888;
        font-size: 14px;
        margin-bottom: 4px;
    }

    /* 进度条 */
    .progress-section {
        width: 100%;
        margin-bottom: 20px;
    }

    .progress-bar {
        width: 100%;
        height: 6px;
        background: rgba(0, 0, 0, 0.1);
        border-radius: 3px;
        cursor: pointer;
        position: relative;
        transition: height 0.2s;
    }

    .progress-bar:hover {
        height: 8px;
    }

    .progress-fill {
        height: 100%;
        background: linear-gradient(90deg, #667eea 0%, #764ba2 100%);
        border-radius: 3px;
        width: 0%;
        transition: width 0.1s;
        position: relative;
    }

    .progress-fill::after {
        content: '';
        position: absolute;
        right: -6px;
        top: 50%;
        transform: translateY(-50%);
        width: 12px;
        height: 12px;
        background: #667eea;
        border-radius: 50%;
        opacity: 0;
        transition: opacity 0.2s;
        box-shadow: 0 2px 8px rgba(102, 126, 234, 0.3);
    }

    .progress-bar:hover .progress-fill::after {
        opacity: 1;
    }

    .time-info {
        display: flex;
        justify-content: space-between;
        margin-top: 10px;
        font-size: 12px;
        color: #888;
        font-weight: 500;
    }

    /* 控制按钮 */
    .controls {
        display: flex;
        justify-content: center;
        align-items: center;
        gap: 24px;
        margin-bottom: 25px;
    }

    .control-btn {
        width: 44px;
        height: 44px;
        border-radius: 50%;
        border: none;
        background: rgba(0, 0, 0, 0.05);
        color: #333;
        font-size: 18px;
        cursor: pointer;
        transition: all 0.3s;
        display: flex;
        align-items: center;
        justify-content: center;
    }

    .control-btn:hover {
        background: rgba(102, 126, 234, 0.1);
        transform: scale(1.1);
    }

    .play-btn {
        width: 64px;
        height: 64px;
        font-size: 24px;
        background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
        color: #fff;
        box-shadow: 0 8px 25px rgba(102, 126, 234, 0.3);
    }

    .play-btn:hover {
        background: linear-gradient(135deg, #5a67d8 0%, #6b46c1 100%);
        box-shadow: 0 10px 30px rgba(102, 126, 234, 0.4);
        transform: scale(1.05);
    }

    /* 音质选择 */
    .quality-section {
        display: flex;
        align-items: center;
        justify-content: center;
        gap: 12px;
        margin-bottom: 25px;
        padding: 12px;
        background: rgba(0, 0, 0, 0.03);
        border-radius: 12px;
    }

    .quality-label {
        font-size: 13px;
        color: #888;
    }

    .quality-select {
        padding: 8px 16px;
        background: rgba(255, 255, 255, 0.9);
        border: 1px solid rgba(0, 0, 0, 0.1);
        border-radius: 8px;
        font-size: 13px;
        color: #333;
        cursor: pointer;
        transition: all 0.3s;
    }

    .quality-select:hover {
        background: #fff;
    }

    .quality-select option {
        background: #fff;
        color: #333;
    }

    .quality-status {
        display: inline-flex;
        align-items: center;
        gap: 4px;
        padding: 4px 8px;
        background: rgba(102, 126, 234, 0.1);
        border-radius: 6px;
        font-size: 11px;
        color: #667eea;
        font-weight: 500;
        animation: pulse-status 1.5s ease-in-out infinite;
    }

    @keyframes pulse-status {
        0%, 100% { opacity: 0.6; }
        50% { opacity: 1; }
    }

    /* 音量控制 */
    .volume-section {
        display: flex;
        align-items: center;
        justify-content: center;
        gap: 12px;
        margin-bottom: 25px;
        padding: 12px;
        background: rgba(0, 0, 0, 0.03);
        border-radius: 12px;
    }

    .volume-label {
        font-size: 13px;
        color: #888;
    }

    .volume-slider {
        width: 150px;
        cursor: pointer;
        -webkit-appearance: none;
        appearance: none;
        height: 6px;
        background: rgba(0, 0, 0, 0.1);
        border-radius: 3px;
        outline: none;
    }

    .volume-slider::-webkit-slider-thumb {
        -webkit-appearance: none;
        appearance: none;
        width: 16px;
        height: 16px;
        background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
        border-radius: 50%;
        cursor: pointer;
        transition: all 0.2s;
        box-shadow: 0 2px 6px rgba(102, 126, 234, 0.3);
    }

    .volume-slider::-webkit-slider-thumb:hover {
        transform: scale(1.2);
        box-shadow: 0 3px 8px rgba(102, 126, 234, 0.4);
    }

    .volume-slider::-moz-range-thumb {
        width: 16px;
        height: 16px;
        background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
        border-radius: 50%;
        cursor: pointer;
        border: none;
        transition: all 0.2s;
        box-shadow: 0 2px 6px rgba(102, 126, 234, 0.3);
    }

    .volume-slider::-moz-range-thumb:hover {
        transform: scale(1.2);
        box-shadow: 0 3px 8px rgba(102, 126, 234, 0.4);
    }

    .volume-value {
        font-size: 13px;
        color: #888;
        min-width: 40px;
        text-align: right;
    }

    /* 下载按钮 */
    .download-section {
        display: flex;
        flex-wrap: wrap;
        gap: 10px;
        justify-content: center;
        margin-bottom: 25px;
    }

    .download-btn {
        padding: 10px 20px;
        border: none;
        border-radius: 10px;
        cursor: pointer;
        font-size: 13px;
        font-weight: 600;
        transition: all 0.3s;
        display: flex;
        align-items: center;
        gap: 6px;
        color: #fff;
    }

    .download-btn:hover {
        transform: translateY(-2px);
        box-shadow: 0 4px 15px rgba(102, 126, 234, 0.3);
    }

    .download-btn:active {
        transform: translateY(0);
    }

    .btn-download-all {
        background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    }

    .btn-download-audio {
        background: linear-gradient(135deg, #10b981 0%, #059669 100%);
    }

    .btn-download-lyrics {
        background: linear-gradient(135deg, #f59e0b 0%, #d97706 100%);
    }

    .btn-download-cover {
        background: linear-gradient(135deg, #8b5cf6 0%, #7c3aed 100%);
    }

    /* 歌词区域 */
    .lyrics-panel {
        background: rgba(255, 255, 255, 0.8);
        backdrop-filter: blur(20px);
        border-radius: 20px;
        padding: 25px;
        border: 1px solid rgba(0, 0, 0, 0.08);
        box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
    }

    .lyrics-header {
        display: flex;
        justify-content: space-between;
        align-items: center;
        margin-bottom: 20px;
        padding-bottom: 15px;
        border-bottom: 1px solid rgba(0, 0, 0, 0.08);
    }

    .lyrics-header h3 {
        font-size: 1.1rem;
        color: #333;
        font-weight: 600;
    }

    .lyrics-content {
        max-height: 400px;
        overflow-y: auto;
        font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
        line-height: 2;
        color: #666;
        padding: 10px;
    }

    .lyrics-content::-webkit-scrollbar {
        width: 4px;
    }

    .lyrics-content::-webkit-scrollbar-track {
        background: rgba(0, 0, 0, 0.05);
    }

    .lyrics-content::-webkit-scrollbar-thumb {
        background: rgba(0, 0, 0, 0.2);
        border-radius: 2px;
    }

    .lyrics-line {
        padding: 8px 0;
        transition: all 0.3s;
        border-radius: 8px;
        font-size: 14px;
    }

    .lyrics-line:hover {
        color: #999;
        background: rgba(102, 126, 234, 0.05);
    }

    .lyrics-line.active {
        color: #667eea;
        font-size: 16px;
        font-weight: 600;
        background: rgba(102, 126, 234, 0.1);
    }

    /* 状态提示 */
    .loading {
        text-align: center;
        padding: 30px;
        color: #888;
    }

    .loading::before {
        content: '';
        display: inline-block;
        width: 20px;
        height: 20px;
        border: 2px solid rgba(255, 255, 255, 0.2);
        border-top-color: #667eea;
        border-radius: 50%;
        animation: spin 1s linear infinite;
        margin-right: 10px;
        vertical-align: middle;
    }

    @keyframes spin {
        to { transform: rotate(360deg); }
    }

    .error {
        background: rgba(239, 68, 68, 0.15);
        color: #f87171;
        padding: 15px;
        border-radius: 12px;
        margin-bottom: 20px;
        border: 1px solid rgba(239, 68, 68, 0.3);
    }

    .song-list-title {
        font-size: 1rem;
        color: #888;
        margin-bottom: 15px;
        padding-bottom: 10px;
        border-bottom: 1px solid rgba(0, 0, 0, 0.08);
    }

    @media (max-width: 600px) {
        .container {
            padding: 15px;
        }

        .header h1 {
            font-size: 1.6rem;
        }

        .search-box {
            flex-wrap: wrap;
        }

        .search-box input,
        .search-box select,
        .search-btn {
            width: 100%;
        }

        .album-cover {
            width: 220px;
            height: 220px;
        }

        .controls {
            gap: 16px;
        }

        .control-btn {
            width: 40px;
            height: 40px;
            font-size: 16px;
        }

        .play-btn {
            width: 56px;
            height: 56px;
            font-size: 20px;
        }

        .download-section {
            flex-direction: column;
        }

        .download-btn {
            width: 100%;
            justify-content: center;
        }
    }