* {
            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;
            background: #f8f9fa;
            color: #333;
            overflow-x: hidden;
        }

        /* 背景动画 */
        .bg-animation {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: linear-gradient(-45deg, #f0f4f8, #e0e7f0, #d0e0f0, #e0f0f8);
            background-size: 400% 400%;
            animation: gradientBG 20s ease infinite;
            z-index: -2;
        }

        .bg-overlay {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: rgba(255, 255, 255, 0.9);
            backdrop-filter: blur(8px);
            z-index: -1;
        }

        @keyframes gradientBG {
            0% { background-position: 0% 50%; }
            50% { background-position: 100% 50%; }
            100% { background-position: 0% 50%; }
        }

        /* 顶部导航 */
        .navbar {
            background: rgba(255, 255, 255, 0.95);
            backdrop-filter: blur(12px);
            border-bottom: 1px solid rgba(0, 0, 0, 0.05);
            padding: 12px 0;
            position: sticky;
            top: 0;
            z-index: 100;
        }

        .nav-container {
            max-width: 1400px;
            margin: 0 auto;
            padding: 0 24px;
            display: flex;
            align-items: center;
            justify-content: space-between;
        }

        .logo {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 20px;
            font-weight: 600;
            color: #333;
        }

        .logo i {
            color: #4a90e2;
            font-size: 22px;
        }

        .search-container {
            flex: 1;
            max-width: 600px;
            margin: 0 32px;
            position: relative;
        }

        .search-wrapper {
            display: flex;
            background: rgba(255, 255, 255, 0.8);
            border-radius: 8px;
            overflow: hidden;
            border: 1px solid rgba(0, 0, 0, 0.1);
            transition: all 0.2s ease;
        }

        .search-wrapper:focus-within {
            border-color: #4a90e2;
            box-shadow: 0 0 8px rgba(74, 144, 226, 0.2);
        }

        .search-input {
            flex: 1;
            padding: 10px 16px;
            background: transparent;
            border: none;
            color: #333;
            font-size: 14px;
            outline: none;
        }

        .search-input::placeholder {
            color: rgba(51, 51, 51, 0.5);
        }

        .source-select {
            background: rgba(255, 255, 255, 0.8);
            border: none;
            color: #333;
            padding: 10px 12px;
            outline: none;
            cursor: pointer;
        }

        .source-select option {
            background: #fff;
            color: #333;
            padding: 8px;
        }

        .search-btn {
            background: #4a90e2;
            border: none;
            color: #fff;
            padding: 10px 16px;
            cursor: pointer;
            transition: all 0.2s ease;
        }

        .search-btn:hover {
            background: #357abd;
        }

        /* 主要内容区域 */
        .main-container {
            max-width: 1600px;
            margin: 0 auto;
            padding: 24px;
            display: grid;
            grid-template-columns: 600px 450px 350px;
            gap: 20px;
            min-height: calc(var(--vh, 1vh) * 100 - 180px);
            align-items: start;
        }

        /* 搜索结果区域 */
        .content-section {
            background: rgba(255, 255, 255, 0.95);
            border-radius: 12px;
            padding: 20px;
            backdrop-filter: blur(12px);
            border: 1px solid rgba(0, 0, 0, 0.05);
            min-width: 0;
            display: flex;
            flex-direction: column;
            height: calc(100vh - 200px);
        }

        .section-title {
            font-size: 18px;
            font-weight: 500;
            margin-bottom: 16px;
            color: #333;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        /* 标签页样式 */
        .tabs {
            display: flex;
            border-bottom: 1px solid rgba(0, 0, 0, 0.1);
            margin-bottom: 16px;
            scrollbar-width: none;
            -ms-overflow-style: none;
        }
        
        .tabs::-webkit-scrollbar {
            display: none;
        }
        
        .saved-playlist-tabs {
            display: flex;
            gap: 4px;
        }

        .tab-btn {
            padding: 10px 16px;
            cursor: pointer;
            background: transparent;
            border: none;
            color: rgba(51, 51, 51, 0.6);
            font-size: 14px;
            transition: all 0.2s ease;
            border-bottom: 2px solid transparent;
            white-space: nowrap;
            flex-shrink: 0;
        }
        
        .saved-playlist-tab {
            padding: 6px 10px;
            cursor: pointer;
            background: rgba(255, 255, 255, 0.8);
            border: 1px solid rgba(0, 0, 0, 0.1);
            border-radius: 12px;
            color: rgba(51, 51, 51, 0.7);
            font-size: 12px;
            transition: all 0.2s ease;
            white-space: nowrap;
            max-width: 120px;
            overflow: hidden;
            text-overflow: ellipsis;
            position: relative;
            display: flex;
            align-items: center;
            gap: 4px;
        }
        
        .saved-playlist-tab:hover {
            background: rgba(255, 255, 255, 0.9);
            color: #333;
        }
        
        .saved-playlist-tab.active {
            background: rgba(74, 144, 226, 0.15);
            border-color: rgba(74, 144, 226, 0.3);
            color: #4a90e2;
        }
        
        .saved-playlist-tab .close-btn {
            width: 12px;
            height: 12px;
            border-radius: 50%;
            background: rgba(0, 0, 0, 0.1);
            border: none;
            color: rgba(51, 51, 51, 0.7);
            cursor: pointer;
            font-size: 8px;
            display: flex;
            align-items: center;
            justify-content: center;
            transition: all 0.2s ease;
            flex-shrink: 0;
        }
        
        .saved-playlist-tab .close-btn:hover {
            background: rgba(244, 67, 54, 0.8);
            color: #fff;
        }
        
        /* 移动端下拉菜单样式 */
        .mobile-playlist-dropdown {
            display: none;
            position: relative;
        }
        
        /* 桌面端默认显示tab，隐藏下拉菜单 */
        @media (min-width: 481px) {
            .mobile-playlist-dropdown {
                display: none !important;
            }
        }
        
        .dropdown-btn {
            padding: 6px 10px;
            background: rgba(255, 255, 255, 0.8);
            border: 1px solid rgba(0, 0, 0, 0.1);
            border-radius: 12px;
            color: rgba(51, 51, 51, 0.7);
            font-size: 12px;
            cursor: pointer;
            transition: all 0.2s ease;
            display: flex;
            align-items: center;
            gap: 4px;
            white-space: nowrap;
        }
        
        .dropdown-btn:hover {
            background: rgba(255, 255, 255, 0.9);
            color: #333;
        }
        
        .dropdown-btn.active {
            background: rgba(74, 144, 226, 0.15);
            border-color: rgba(74, 144, 226, 0.3);
            color: #4a90e2;
        }
        
        .dropdown-arrow {
            transition: transform 0.2s ease;
        }
        
        .dropdown-btn.active .dropdown-arrow {
            transform: rotate(180deg);
        }
        
        .dropdown-menu {
            position: absolute;
            top: 100%;
            left: 0;
            right: 0;
            background: rgba(255, 255, 255, 0.95);
            border: 1px solid rgba(0, 0, 0, 0.1);
            border-radius: 8px;
            backdrop-filter: blur(12px);
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
            z-index: 1000;
            margin-top: 4px;
            opacity: 0;
            visibility: hidden;
            transform: translateY(-8px);
            transition: all 0.2s ease;
            max-height: 180px;
            overflow-y: auto;
        }
        
        .dropdown-menu.show {
            opacity: 1;
            visibility: visible;
            transform: translateY(0);
        }
        
        .dropdown-item {
            padding: 8px 10px;
            cursor: pointer;
            transition: all 0.2s ease;
            border-bottom: 1px solid rgba(0, 0, 0, 0.05);
            display: flex;
            align-items: center;
            justify-content: space-between;
            font-size: 12px;
        }
        
        .dropdown-item:last-child {
            border-bottom: none;
        }
        
        .dropdown-item:hover {
            background: rgba(0, 0, 0, 0.05);
        }
        
        .dropdown-item-name {
            flex: 1;
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
            margin-right: 6px;
        }
        
        .dropdown-item-close {
            width: 14px;
            height: 14px;
            border-radius: 50%;
            background: rgba(0, 0, 0, 0.1);
            border: none;
            color: rgba(51, 51, 51, 0.7);
            cursor: pointer;
            font-size: 8px;
            display: flex;
            align-items: center;
            justify-content: center;
            transition: all 0.2s ease;
            flex-shrink: 0;
        }
        
        .dropdown-item-close:hover {
            background: rgba(244, 67, 54, 0.8);
            color: #fff;
        }

        .tab-btn:hover {
            color: #333;
        }

        .tab-btn.active {
            color: #4a90e2;
            border-bottom-color: #4a90e2;
        }

        .tab-content {
            display: none;
            flex: 1;
            overflow: auto;
            flex-direction: column;
        }

        .tab-content.active {
            display: flex;
        }

        .playlist-input-container {
            display: flex;
            gap: 8px;
            margin-bottom: 16px;
        }

        .playlist-input {
            flex: 1;
            padding: 10px 16px;
            background: rgba(255, 255, 255, 0.8);
            border: 1px solid rgba(0, 0, 0, 0.1);
            border-radius: 6px;
            color: #333;
            font-size: 14px;
            outline: none;
        }

        .playlist-btn {
            padding: 10px 16px;
            background: #4a90e2;
            border: none;
            border-radius: 6px;
            color: #fff;
            cursor: pointer;
            transition: all 0.2s ease;
        }

        .playlist-btn:hover {
            background: #357abd;
        }

        .search-results {
            flex: 1;
            overflow-y: auto;
            scrollbar-width: thin;
            scrollbar-color: rgba(0, 0, 0, 0.2) transparent;
        }

        .search-results::-webkit-scrollbar {
            width: 5px;
        }

        .search-results::-webkit-scrollbar-track {
            background: transparent;
        }

        .search-results::-webkit-scrollbar-thumb {
            background: rgba(0, 0, 0, 0.2);
            border-radius: 2.5px;
        }

        .song-item {
            display: flex;
            align-items: center;
            padding: 12px 16px;
            border-radius: 8px;
            cursor: pointer;
            transition: all 0.2s ease;
            margin-bottom: 6px;
            position: relative;
            overflow: hidden;
        }

        .song-item::before {
            content: '';
            position: absolute;
            top: 0;
            left: -100%;
            width: 100%;
            height: 100%;
            background: linear-gradient(90deg, transparent, rgba(0, 0, 0, 0.05), transparent);
            transition: left 0.4s ease;
        }

        .song-item:hover {
            background: rgba(0, 0, 0, 0.05);
            transform: translateY(-1px);
        }

        .song-item:hover::before {
            left: 100%;
        }

        .song-item.active {
            background: linear-gradient(135deg, rgba(74, 144, 226, 0.2), rgba(74, 144, 226, 0.1));
            border: 1px solid rgba(74, 144, 226, 0.3);
        }

        .song-index {
            width: 32px;
            height: 32px;
            border-radius: 50%;
            background: rgba(0, 0, 0, 0.05);
            display: flex;
            align-items: center;
            justify-content: center;
            margin-right: 12px;
            font-size: 12px;
            font-weight: 500;
            color: rgba(51, 51, 51, 0.6);
        }

        .song-item.active .song-index {
            background: linear-gradient(135deg, #4a90e2, #357abd);
            color: #fff;
        }

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

        .song-name {
            font-weight: 500;
            margin-bottom: 4px;
            font-size: 14px;
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
        }

        .song-artist {
            color: rgba(51, 51, 51, 0.6);
            font-size: 12px;
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
        }

        .song-duration {
            color: rgba(51, 51, 51, 0.4);
            font-size: 12px;
            margin-left: 12px;
        }

        /* 播放器区域 */
        .player-section {
            background: rgba(255, 255, 255, 0.95);
            border-radius: 12px;
            padding: 20px;
            backdrop-filter: blur(12px);
            border: 1px solid rgba(0, 0, 0, 0.05);
            display: flex;
            flex-direction: column;
            justify-content: space-between;
            height: calc(100vh - 200px);
        }

        .current-song {
            text-align: center;
            margin-bottom: 20px;
        }

        .current-cover-container {
            position: relative;
            display: inline-block;
            margin-bottom: 16px;
        }

        .current-cover {
            width: 180px;
            height: 180px;
            border-radius: 50%;
            object-fit: cover;
            box-shadow: 0 8px 16px rgba(0, 0, 0, 0.1);
            transition: all 0.2s ease;
            border: 4px solid rgba(255, 255, 255, 0.8);
            position: relative;
        }

        .current-cover::before {
            content: '';
            position: absolute;
            top: 50%;
            left: 50%;
            transform: translate(-50%, -50%);
            width: 32px;
            height: 32px;
            background: rgba(255, 255, 255, 0.3);
            border-radius: 50%;
            backdrop-filter: blur(8px);
        }

        .current-cover::after {
            content: '';
            position: absolute;
            top: 50%;
            left: 50%;
            transform: translate(-50%, -50%);
            width: 10px;
            height: 10px;
            background: rgba(255, 255, 255, 0.9);
            border-radius: 50%;
        }

        .current-cover.playing {
            animation: rotate 25s linear infinite;
        }

        @keyframes rotate {
            from { transform: rotate(0deg); }
            to { transform: rotate(360deg); }
        }

        .current-info h3 {
            font-size: 18px;
            font-weight: 500;
            margin-bottom: 6px;
            color: #333;
        }

        .current-info p {
            color: rgba(51, 51, 51, 0.6);
            font-size: 14px;
        }

        /* 播放控制 */
        .player-controls {
            display: flex;
            justify-content: center;
            align-items: center;
            gap: 16px;
            margin-bottom: 20px;
        }

        .control-btn {
            background: rgba(255, 255, 255, 0.8);
            border: 1px solid rgba(0, 0, 0, 0.1);
            border-radius: 50%;
            color: #333;
            cursor: pointer;
            transition: all 0.2s ease;
            display: flex;
            align-items: center;
            justify-content: center;
        }

        .control-btn:hover {
            background: rgba(255, 255, 255, 0.9);
            transform: scale(1.05);
        }

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

        .play-btn {
            width: 56px;
            height: 56px;
            font-size: 24px;
            background: linear-gradient(135deg, #4a90e2, #357abd);
            border: none;
            box-shadow: 0 4px 12px rgba(74, 144, 226, 0.2);
        }

        .play-btn:hover {
            background: linear-gradient(135deg, #357abd, #2a6da9);
            box-shadow: 0 6px 16px rgba(74, 144, 226, 0.3);
        }

        /* 进度条 */
        .progress-container {
            margin-bottom: 16px;
        }

        .progress-bar {
            width: 100%;
            height: 4px;
            background: rgba(0, 0, 0, 0.1);
            border-radius: 2px;
            cursor: pointer;
            margin-bottom: 8px;
            position: relative;
            overflow: hidden;
        }

        .progress-fill {
            height: 100%;
            background: linear-gradient(90deg, #4a90e2, #5fa3f0);
            border-radius: 2px;
            width: 0%;
            transition: width 0.1s ease;
            position: relative;
        }

        .progress-fill::after {
            content: '';
            position: absolute;
            right: -1px;
            top: 50%;
            transform: translateY(-50%);
            width: 10px;
            height: 10px;
            background: #fff;
            border-radius: 50%;
            box-shadow: 0 1px 4px rgba(0, 0, 0, 0.2);
        }

        .time-info {
            display: flex;
            justify-content: space-between;
            font-size: 12px;
            color: rgba(51, 51, 51, 0.6);
        }

        /* 音量控制 */
        .volume-container {
            display: flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 20px;
        }

        .volume-icon {
            color: rgba(51, 51, 51, 0.6);
            font-size: 16px;
        }

        .volume-slider {
            flex: 1;
            height: 3px;
            background: rgba(0, 0, 0, 0.1);
            border-radius: 1.5px;
            outline: none;
            cursor: pointer;
            -webkit-appearance: none;
        }

        .volume-slider::-webkit-slider-thumb {
            -webkit-appearance: none;
            width: 12px;
            height: 12px;
            background: #4a90e2;
            border-radius: 50%;
            cursor: pointer;
        }

        /* 音质选择 */
        .quality-container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-bottom: 16px;
            padding: 10px 12px;
            background: rgba(255, 255, 255, 0.8);
            border-radius: 8px;
            border: 1px solid rgba(0, 0, 0, 0.1);
        }

        .quality-label {
            display: flex;
            align-items: center;
            gap: 6px;
            color: rgba(51, 51, 51, 0.8);
            font-size: 13px;
        }

        .quality-select {
            background: rgba(255, 255, 255, 0.8);
            border: 1px solid rgba(0, 0, 0, 0.1);
            border-radius: 6px;
            color: #333;
            padding: 6px 10px;
            outline: none;
            cursor: pointer;
            font-size: 13px;
        }

        .quality-select option {
            background: #fff;
            color: #333;
            padding: 6px;
        }

        /* 下载区域 */
        .download-container {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 8px;
            margin-bottom: 16px;
        }

        .download-btn {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 6px;
            padding: 10px 12px;
            background: rgba(255, 255, 255, 0.8);
            border: 1px solid rgba(0, 0, 0, 0.1);
            border-radius: 8px;
            color: #333;
            cursor: pointer;
            transition: all 0.2s ease;
            font-size: 13px;
        }

        .download-btn:hover:not(:disabled) {
            background: rgba(255, 255, 255, 0.9);
            border-color: #4a90e2;
            color: #4a90e2;
        }

        .download-btn:disabled {
            opacity: 0.5;
            cursor: not-allowed;
        }

        /* 移动端分页指示器 */
        .mobile-page-indicators {
            display: none;
            position: fixed;
            bottom: 16px;
            left: 50%;
            transform: translateX(-50%);
            gap: 6px;
            z-index: 1000;
            background: rgba(255, 255, 255, 0.8);
            padding: 6px 12px;
            border-radius: 16px;
            backdrop-filter: blur(8px);
        }

        .page-indicator {
            width: 6px;
            height: 6px;
            border-radius: 50%;
            background: rgba(51, 51, 51, 0.3);
            transition: all 0.2s ease;
            cursor: pointer;
        }

        .page-indicator.active {
            background: #4a90e2;
            transform: scale(1.1);
        }

        /* 歌曲操作按钮 */
        .song-actions {
            display: flex;
            gap: 6px;
            margin-right: 12px;
        }

        .action-btn {
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background: rgba(0, 0, 0, 0.05);
            border: none;
            color: rgba(51, 51, 51, 0.6);
            cursor: pointer;
            transition: all 0.2s ease;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 10px;
        }

        .action-btn:hover {
            background: rgba(74, 144, 226, 0.2);
            color: #4a90e2;
            transform: scale(1.05);
        }

        /* 歌词区域 */
        .lyrics-section {
            background: rgba(255, 255, 255, 0.95);
            border-radius: 12px;
            padding: 20px;
            backdrop-filter: blur(12px);
            border: 1px solid rgba(0, 0, 0, 0.05);
            display: flex;
            flex-direction: column;
            height: calc(100vh - 200px);
        }

        .lyrics-container {
            flex: 1;
            overflow-y: auto;
            scrollbar-width: thin;
            scrollbar-color: rgba(0, 0, 0, 0.2) transparent;
            padding-right: 8px;
        }

        .lyrics-container::-webkit-scrollbar {
            width: 5px;
        }

        .lyrics-container::-webkit-scrollbar-track {
            background: transparent;
        }

        .lyrics-container::-webkit-scrollbar-thumb {
            background: rgba(0, 0, 0, 0.2);
            border-radius: 2.5px;
        }

        .lyric-line {
            padding: 6px 0;
            transition: all 0.2s ease;
            cursor: pointer;
            border-radius: 4px;
            padding-left: 8px;
            margin-bottom: 2px;
            color: rgba(51, 51, 51, 0.6);
            line-height: 1.5;
        }

        .lyric-line:hover {
            background: rgba(0, 0, 0, 0.05);
            color: rgba(51, 51, 51, 0.8);
        }

        .lyric-line.active {
            color: #4a90e2;
            font-weight: 500;
            background: rgba(74, 144, 226, 0.1);
            transform: scale(1.01);
            border-left: 2px solid #4a90e2;
        }

        /* 加载和错误状态 */
        .loading, .error, .empty-state {
            text-align: center;
            padding: 32px 16px;
            color: rgba(51, 51, 51, 0.6);
        }

        .loading i, .error i, .empty-state i {
            font-size: 40px;
            margin-bottom: 12px;
            display: block;
        }

        .loading i {
            animation: spin 1s linear infinite;
            color: #4a90e2;
        }

        @keyframes spin {
            from { transform: rotate(0deg); }
            to { transform: rotate(360deg); }
        }

        .error i {
            color: #e94e58;
        }

        .empty-state i {
            color: rgba(51, 51, 51, 0.3);
        }

        /* 响应式设计 */
        @media (max-width: 1400px) {
            .main-container {
                grid-template-columns: 1fr 400px;
                gap: 16px;
                max-width: 1200px;
            }
            
            .lyrics-section {
                display: none;
            }
        }
        
        @media (max-width: 1024px) {
            .main-container {
                grid-template-columns: 1fr;
                gap: 16px;
                padding: 16px;
            }
            
            .nav-container {
                padding: 0 16px;
            }
            
            .search-container {
                margin: 0 16px;
            }
            
            .lyrics-section {
                display: block;
                position: static;
            }
            
            .player-section {
                position: static;
                min-height: auto;
                height: auto;
            }
        }

        @media (max-width: 768px) {
            .nav-container {
                flex-direction: column;
                gap: 12px;
                padding: 0 12px;
            }
            
            .search-container {
                margin: 0;
                max-width: none;
            }
            
            .search-wrapper {
                border-radius: 6px;
            }
            
            .search-input {
                padding: 8px 12px;
                font-size: 13px;
            }
            
            .main-container {
                padding: 12px;
                gap: 12px;
                display: block;
                position: relative;
                height: calc(100vh - 100px);
            }
            
            /* 移动端显示分页指示器 */
            .mobile-page-indicators {
                display: flex;
            }
            
            /* 默认隐藏所有区域 */
            .content-section, .player-section, .lyrics-section {
                display: none;
                padding: 16px 12px;
                border-radius: 10px;
                height: calc(100vh - 140px);
                overflow-y: auto;
            }
            
            /* 显示当前激活的页面 */
            .content-section.mobile-active {
                display: flex;
            }
            
            .player-section.mobile-active {
                display: flex;
            }
            
            .lyrics-section.mobile-active {
                display: flex;
            }
            
            /* 移动端滑动优化 */
            .main-container {
                touch-action: pan-x;
                -webkit-overflow-scrolling: touch;
            }
            
            .content-section, .player-section, .lyrics-section {
                will-change: transform, opacity;
                backface-visibility: hidden;
                -webkit-backface-visibility: hidden;
            }
            
            .current-cover {
                width: 150px;
                height: 150px;
            }
            
            .current-info h3 {
                font-size: 16px;
                margin-bottom: 5px;
            }
            
            .current-info p {
                font-size: 13px;
            }
            
            .player-controls {
                gap: 10px;
                margin-bottom: 16px;
            }
            
            .control-btn.small {
                width: 36px;
                height: 36px;
                font-size: 14px;
            }
            
            .play-btn {
                width: 48px;
                height: 48px;
                font-size: 20px;
            }
            
            .song-item {
                padding: 10px 12px;
            border-radius: 6px;
            }
            
            .song-index {
                width: 30px;
                height: 30px;
                font-size: 11px;
                margin-right: 10px;
            }
            
            .song-name {
            font-size: 13px;
                margin-bottom: 3px;
            }
            
            .song-artist {
                font-size: 11px;
            }
            
            .song-duration {
                font-size: 11px;
            }
            
            .section-title {
                font-size: 16px;
                margin-bottom: 12px;
            }
            
            .quality-container {
                padding: 8px 10px;
                margin-bottom: 12px;
            }
            
            .download-container {
                margin-bottom: 12px;
            }
            
            .download-btn {
                padding: 8px 10px;
                font-size: 11px;
                gap: 4px;
            }
            
            .time-info {
                font-size: 11px;
            }
            
            .progress-bar {
                height: 6px;
                margin-bottom: 6px;
            }
            
            .progress-fill::after {
                width: 14px;
                height: 14px;
            }
        }

        /* 超小屏幕优化 (手机竖屏) */
        @media (max-width: 480px) {
            .main-container {
                padding: 8px;
                gap: 8px;
            }
            
            .nav-container {
                padding: 0 8px;
            }
            
            .content-section, .player-section, .lyrics-section {
                padding: 12px 8px;
                border-radius: 8px;
            }
            
            .current-cover {
                width: 130px;
                height: 130px;
            }
            
            .current-info h3 {
                font-size: 15px;
                line-height: 1.2;
            }
            
            .current-info p {
                font-size: 12px;
                opacity: 0.8;
            }
            
            .search-input {
                padding: 7px 10px;
                font-size: 12px;
            }
            
            .search-btn {
                padding: 7px 12px;
            }
            
            .source-select {
                padding: 7px 8px;
                font-size: 12px;
            }
            
            .song-item {
                padding: 8px 10px;
            }
            
            .song-name {
                font-size: 12px;
            }
            
            .song-artist {
                font-size: 10px;
            }
            
            .tab-btn {
                padding: 8px 12px;
                font-size: 13px;
            }
            
            .saved-playlist-tab {
                padding: 5px 8px;
                font-size: 10px;
                max-width: 100px;
                gap: 3px;
            }
            
            .saved-playlist-tab .close-btn {
                width: 10px;
                height: 10px;
                font-size: 7px;
            }
            
            /* 移动端显示下拉菜单，隐藏桌面端tab */
            .saved-playlist-tabs {
                display: none !important;
            }
            
            .mobile-playlist-dropdown {
                display: block !important;
            }
            
            .playlist-input {
                padding: 8px 12px;
                font-size: 13px;
            }
            
            .playlist-btn {
                padding: 8px 12px;
                font-size: 13px;
            }
            
            .volume-container {
                margin-bottom: 16px;
            }
            
            .download-btn {
                padding: 7px 8px;
                font-size: 10px;
            }
            
            .action-btn {
                width: 26px;
                height: 26px;
                font-size: 10px;
            }
        }

        /* 自定义滚动条样式 */
        ::-webkit-scrollbar {
            width: 6px;
        }

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

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

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

        /* 音频可视化波浪样式 */
        .audio-visualizer {
            position: fixed;
            bottom: 0;
            left: 0;
            width: 100%;
            height: 140px;
            z-index: -1;
            pointer-events: none;
            background: linear-gradient(to top, rgba(248, 249, 250, 0.8), transparent);
            backdrop-filter: blur(4px);
        }

        #waveCanvas {
            width: 100%;
            height: 100%;
            opacity: 0.5;
        }