/* 主内容区样式 */
        main {
            padding: 15px 0 30px;
            min-height: calc(100vh - 100px);
        }
        
        .page-header {
            margin-bottom: 20px;
            padding: 15px;
            background: linear-gradient(to right, var(--primary-color), var(--accent-color));
            border-radius: 8px;
            color: var(--white);
            box-shadow: 0 4px 12px rgba(139, 69, 19, 0.2);
        }
        
        .page-header h1 {
            font-size: 2.2rem;
            margin-bottom: 8px;
        }
        
        .page-header p {
            font-size: 1.4rem;
            opacity: 0.9;
        }
        
        /* 音频列表样式 */
        .audio-list {
            background: var(--white);
            border-radius: 8px;
            box-shadow: 0 2px 8px rgba(0,0,0,0.06);
            overflow: hidden;
            margin-bottom: 30px;
        }
        
        /* 音频项样式 */
        .audio-item {
            display: flex;
            align-items: center;
            padding: 16px 20px;
            border-bottom: 1px solid var(--secondary-color);
            background-color: var(--white);
            transition: all 0.3s ease;
            position: relative;
        }

        .audio-item:hover {
            background-color: rgba(210, 180, 140, 0.1);
        }

        /* 当前播放项高亮 */
        .audio-item.playing {
            background-color: rgba(139, 69, 19, 0.1);
        }

        /* 缩略图样式 */
        .audio-thumbnail {
            width: 60px;
            height: 60px;
            border-radius: 8px;
            margin-right: 18px;
            object-fit: cover;
            flex-shrink: 0;
            box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
        }

        /* 信息区域 */
        .audio-info {
            overflow: hidden;
            min-width: 0;
            flex: 1;
        }

        .audio-title {
            font-size: 1.6rem;
            font-weight: 600;
            color: var(--text-dark);
            margin: 0 0 6px 0;
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
        }
        
        .audio-title a {
            color: var(--text-dark);
        }
        
        .audio-title a:hover {
            color: var(--primary-color);
        }
        
        .audio-meta {
            display: flex;
            align-items: center;
            font-size: 1.2rem;
            color: var(--text-light);
        }
        
        .audio-meta i {
            margin-right: 4px;
        }
        
        .audio-meta .category {
            margin-right: 12px;
            background: rgba(139, 69, 19, 0.1);
            padding: 2px 6px;
            border-radius: 4px;
        }

        /* 控制区域 */
        .audio-controls {
            display: flex;
            align-items: center;
            margin-left: auto;
        }

        /* 进度条 */
        .progress-container {
            height: 5px;
            background-color: var(--secondary-color);
            border-radius: 3px;
            width: 200px;
            margin: 0 20px;
            overflow: hidden;
            display: none;
            cursor: pointer;
            transition: all 0.3s ease;
        }

        .progress-container:hover {
            background-color: var(--accent-color);
            transform: scaleY(1.3);
        }

        .audio-item.playing .progress-container {
            display: block;
        }

        .progress-bar {
            height: 100%;
            background: linear-gradient(90deg, var(--primary-color) 0%, var(--accent-color) 100%);
            width: 0%;
            transition: width 0.2s ease;
            border-radius: 3px;
        }

        /* 播放按钮 */
        .play-btn {
            width: 44px;
            height: 44px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--primary-color) 0%, var(--accent-color) 100%);
            border: none;
            color: white;
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: center;
            transition: all 0.3s;
            flex-shrink: 0;
            box-shadow: 0 4px 10px rgba(139, 69, 19, 0.3);
            margin-left: 10px;
        }

        .play-btn:hover {
            transform: scale(1.08);
            box-shadow: 0 6px 14px rgba(139, 69, 19, 0.4);
        }

        .play-btn:active {
            transform: scale(0.96);
        }

        .play-btn .play-icon {
            width: 0;
            height: 0;
            border-style: solid;
            border-width: 9px 0 9px 14px;
            border-color: transparent transparent transparent white;
            margin-left: 3px;
        }

        .play-btn .pause-icon {
            display: none;
            width: 16px;
            height: 16px;
            position: relative;
        }

        .play-btn .pause-icon::before,
        .play-btn .pause-icon::after {
            content: "";
            position: absolute;
            width: 4px;
            height: 16px;
            background-color: white;
            border-radius: 2px;
        }

        .play-btn .pause-icon::before {
            left: 2px;
        }

        .play-btn .pause-icon::after {
            right: 2px;
        }

        .audio-item.playing .play-btn .play-icon {
            display: none;
        }

        .audio-item.playing .play-btn .pause-icon {
            display: block;
        }

        /* 时间显示 */
        .time-display {
            font-size: 1.2rem;
            color: var(--primary-color);
            display: none;
            width: 90px;
            text-align: center;
            flex-shrink: 0;
            font-variant-numeric: tabular-nums;
            font-weight: 500;
        }

        .audio-item.playing .time-display {
            display: block;
        }
        /* 响应式设计 */
        @media screen and (max-width: 768px) {
            .audio-item {
                padding: 14px;
            }

            .audio-thumbnail {
                width: 50px;
                height: 50px;
                margin-right: 14px;
            }

            .audio-title {
                font-size: 1.4rem;
            }

            .progress-container {
                width: 120px;
                margin: 0 12px;
            }

            .time-display {
                width: 70px;
                font-size: 1.1rem;
            }

            .play-btn {
                width: 40px;
                height: 40px;
            }

            .audio-item.playing .progress-container {
                display: none;
            }
            .audio-item.playing .time-display{
                display: none;
            }
        }
        
        /* 动画效果 */
        @keyframes fadeIn {
            from { opacity: 0; transform: translateY(10px); }
            to { opacity: 1; transform: translateY(0); }
        }
        
        .audio-item {
            animation: fadeIn 0.4s ease forwards;
        }
        
        .audio-item:nth-child(2) { animation-delay: 0.05s; }
        .audio-item:nth-child(3) { animation-delay: 0.1s; }
        .audio-item:nth-child(4) { animation-delay: 0.15s; }
        .audio-item:nth-child(5) { animation-delay: 0.2s; }
        .audio-item:nth-child(6) { animation-delay: 0.25s; }