:root {
            --primary: #0d6efd;
            --secondary: #3f37c9;
            --light: #f8f9fa;
            --dark: #212529;
            --text: #495057;
            --radius: 8px;
            --shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
            --transition: all 0.2s ease;
        }
        
        body {
            font-family: 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', sans-serif;
            background-color: #f5f7ff;
            color: var(--text);
            line-height: 1.5;
            margin: 0;
            padding: 0;
            overflow: hidden;
        }
        
        /* 通用样式 */
        .navbar {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1030;
        }

        .nav-link {
            color: rgba(255, 255, 255, 0.8);
            font-weight: 500;
            padding: 0.5rem 1rem;
        }
        
        .nav-link:hover {
            color: white;
        }
        
        .main-container {
            position: fixed;
            top: 56px;
            left: 0;
            right: 0;
            bottom: 0;
            display: flex;
            flex-direction: column;
            padding: 0;
        }
        
        .player-section {
            flex-shrink: 0;
            background: white;
            padding: 0.2rem;
            box-shadow: var(--shadow);
            z-index: 1020;
        }
        
        .search-box {
            position: relative;
            margin-bottom: 1rem;
        }
        
        .search-box .form-control {
                width: 80%;
                padding: 12px 60px 12px 16px; /* 右侧留出按钮空间 */
                font-size: 1rem;
                border: 2px solid #e0e0e0;
                border-radius: var(--radius);
                background-color: white;
                box-shadow: var(--shadow);
                transition: var(--transition);
                height: 48px;
        }
        
        .search-box .btn {
            border-radius: 0 var(--radius) var(--radius) 0;
            background-color: var(--primary);
            color: white;
            border: none;
        }
        
        .video-container {
            position: relative;
            padding-top: 56.25%;
            background: #000;
            border-radius: var(--radius);
            overflow: hidden;
        }
        
        .video-js {
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
        }
        
        .vjs-big-play-button {
            top: 50% !important;
            left: 50% !important;
            transform: translate(-50%, -50%) !important;
            border-radius: 50% !important;
            width: 60px !important;
            height: 60px !important;
            line-height: 60px !important;
            font-size: 2rem !important;
            border: none !important;
            background: rgba(255, 255, 255, 0.2) !important;
        }
        
        audio {
            width: 100%;
            border-radius: var(--radius);
        }
        
        .list-section {
            flex: 1;
            display: flex;
            flex-direction: column;
            overflow: hidden;
        }
        
        .media-tabs-container {
            flex-shrink: 0;
            background: white;
            box-shadow: var(--shadow);
            z-index: 1010;
        }
        
        .media-tabs {
            display: flex;
            background: white;
            padding: 0;
            border-bottom: 1px solid rgba(0, 0, 0, 0.05);
        }
        
        .media-tabs .nav-link {
            flex: 1; /* 使三个TAB等宽 */
            min-width: 0; /* 防止内容过长导致溢出 */
            color: var(--text);
            border: none;
            border-radius: 0;
            white-space: nowrap;
            padding: 0.75rem 1rem;
            font-weight: 500;
        }
        
        .media-tabs .nav-link.active {
            color: var(--primary);
            font-weight: 600;
            border-bottom: 3px solid var(--primary);
            background: transparent;
        }
        
        .media-list-container {
            flex: 1;
            overflow-y: auto;
            -webkit-overflow-scrolling: touch;
            padding: 1rem;
            scrollbar-width: thin;
            scrollbar-color: var(--primary) rgba(0, 0, 0, 0.1);
        }
        
        /* 为Webkit浏览器定制滚动条 */
        .media-list-container::-webkit-scrollbar {
            width: 6px;
            height: 6px;
        }

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

        .media-list-container::-webkit-scrollbar-thumb {
            background-color: var(--primary);
            border-radius: 3px;
        }
        
        .media-item {
            display: flex;
            align-items: center;
            padding: 0.75rem;
            border-radius: var(--radius);
            background: white;
            margin-bottom: 0.5rem;
            box-shadow: var(--shadow);
            transition: var(--transition);
        }
        
        .media-item:hover {
            transform: translateY(-2px);
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
        }
        
        .media-item.active {
            background: rgba(67, 97, 238, 0.1);
            border-left: 3px solid var(--primary);
        }
        
        .media-thumb {
            width: 50px;
            height: 50px;
            object-fit: cover;
            border-radius: 8px;
            margin-right: 1rem;
            box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
        }
        
        .media-info {
            flex: 1;
            min-width: 0;
        }
        
        .media-title {
            font-weight: 600;
            margin-bottom: 0.25rem;
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
        }
        
        .media-artist {
            font-size: 0.85rem;
            color: #6c757d;
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
        }
        
        .media-icon {
            color: #adb5bd;
            font-size: 1.25rem;
            margin-left: 0.5rem;
        }
        
        .media-item.active .media-icon {
            color: var(--primary);
        }
        
        .empty-state {
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            height: 100%;
            color: #6c757d;
        }
        
        .empty-icon {
            font-size: 3rem;
            margin-bottom: 1rem;
            color: #adb5bd;
        }
        
        /* 系列折叠样式 */
        .series-header {
            margin: 1rem 0 0.5rem;
            padding: 0.5rem 0.75rem;
            background: rgba(13, 110, 253, 0.1);
            border-left: 3px solid var(--primary);
            border-radius: var(--radius);
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            transition: var(--transition);
        }
        
        .series-header:hover {
            background: rgba(13, 110, 253, 0.15);
        }
        
        .series-title {
            margin: 0;
            font-weight: 600;
            color: var(--primary);
            font-size: 0.9rem;
            text-transform: uppercase;
            letter-spacing: 0.5px;
        }
        
        .series-toggle {
            font-size: 1rem;
            transition: transform 0.2s ease;
        }
        
        .series-toggle.collapsed {
            transform: rotate(-90deg);
        }
        
        .series-content {
            overflow: hidden;
            transition: max-height 0.3s ease;
        }
        
        .series-content.collapsed {
            max-height: 0 !important;
        }
        
        /* 搜索高亮样式 */
        .highlight {
            background-color: rgba(255, 235, 59, 0.3);
            border-radius: 2px;
            padding: 0 2px;
        }
        
        @media (min-width: 768px) {
            .main-container {
                flex-direction: row;
            }
            
            .player-section {
                width: 50%;
                height: 100%;
                padding: 1rem;
                overflow-y: auto;
            }
            
            .list-section {
                width: 50%;
                height: 100%;
            }
            
            .media-tabs-container {
                position: sticky;
                top: 0;
            }
        }

        /* 移动端特定优化 */
        @media (max-width: 767px) {
            .media-list-container {
                -webkit-overflow-scrolling: touch; /* 启用惯性滚动 */
                padding-bottom: 20px; /* 为滚动条留出空间 */
            }
            
            /* 更明显的滚动条 */
            .media-list-container::-webkit-scrollbar {
                width: 7px;
            }

            .search-box {
                position: relative;
                margin-top: 0.1rem;
                margin-bottom: 0.2rem;
           }
        }