    <style>
        /* ===== 主题变量系统 ===== */
        :root {
            --primary-1: #667eea;
            --primary-2: #764ba2;
            --accent: #FF6B6B;
            --bg-gradient: linear-gradient(135deg, var(--primary-1) 0%, var(--primary-2) 100%);
            --card-bg: rgba(255,255,255,0.9);
            --text-primary: #333;
            --text-secondary: #888;
            --border-color: #e0e0e0;
        }
        
        /* 主题1: 默认紫蓝 */
        [data-theme="default"] {
            --primary-1: #667eea;
            --primary-2: #764ba2;
            --accent: #FF6B6B;
            --bg-gradient: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
        }
        
        /* 主题2: 温暖文艺 */
        [data-theme="warm"] {
            --primary-1: #FF9A9E;
            --primary-2: #FECFEF;
            --accent: #FF6B9D;
            --bg-gradient: linear-gradient(135deg, #FF9A9E 0%, #FECFEF 100%);
        }
        
        /* 主题3: 炫酷科技 */
        [data-theme="tech"] {
            --primary-1: #0f0c29;
            --primary-2: #302b63;
            --accent: #00d4ff;
            --bg-gradient: linear-gradient(135deg, #0f0c29 0%, #302b63 50%, #24243e 100%);
            --text-primary: #e0e0e0;
            --text-secondary: #aaa;
            --card-bg: rgba(20,20,40,0.9);
            --border-color: #444;
        }
        
        /* 主题4: 简约白天 */
        [data-theme="light"] {
            --primary-1: #f5f7fa;
            --primary-2: #e4e8eb;
            --accent: #4a90e2;
            --bg-gradient: linear-gradient(135deg, #f5f7fa 0%, #e4e8eb 100%);
            --text-primary: #2c3e50;
            --text-secondary: #7f8c8d;
            --card-bg: rgba(255,255,255,0.95);
            --border-color: #ddd;
        }
        
        /* 主题5: 深色夜间 */
        [data-theme="dark"] {
            --primary-1: #1a1a2e;
            --primary-2: #16213e;
            --accent: #e94560;
            --bg-gradient: linear-gradient(135deg, #1a1a2e 0%, #16213e 100%);
            --text-primary: #eee;
            --text-secondary: #aaa;
            --card-bg: rgba(30,30,50,0.9);
            --border-color: #333;
        }
        
        * { margin: 0; padding: 0; box-sizing: border-box; }
        body { font-family: -apple-system, sans-serif; background: var(--bg-gradient); color: var(--text-primary); min-height: 100vh; }
        
        .container { max-width: 1280px; margin: 0 auto; padding: 20px; }
        
        /* 推荐歌单区域 */
        .recommend-section { background: var(--card-bg); border-radius: 15px; padding: 20px; margin-bottom: 20px; box-shadow: 0 2px 10px rgba(0,0,0,0.05); }
        .recommend-header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 15px; }
        .recommend-header h2 { font-size: 18px; color: var(--text-primary); margin: 0; }
        .recommend-time { font-size: 13px; color: var(--text-secondary); }
        .recommend-list { display: grid; grid-template-columns: repeat(auto-fill, minmax(140px, 1fr)); gap: 12px; }
        .recommend-item { background: linear-gradient(135deg, rgba(102,126,234,0.1) 0%, rgba(118,75,162,0.1) 100%); border-radius: 12px; padding: 15px; cursor: pointer; transition: transform 0.2s, box-shadow 0.2s; text-align: center; }
        .recommend-item:hover { transform: translateY(-3px); box-shadow: 0 4px 12px rgba(0,0,0,0.1); }
        .recommend-icon { font-size: 32px; margin-bottom: 8px; }
        .recommend-title { font-size: 14px; font-weight: 500; color: var(--text-primary); margin-bottom: 4px; }
        .recommend-desc { font-size: 12px; color: var(--text-secondary); }
        
        /* 通知系统样式 */
        .notification-badge { position: absolute; top: -5px; right: -5px; background: #FF6B6B; color: white; border-radius: 50%; width: 20px; height: 20px; font-size: 11px; display: flex; align-items: center; justify-content: center; font-weight: bold; }
        .notification-panel { width: 380px; }
        .notification-header { padding: 15px 20px; border-bottom: 1px solid var(--border-color); display: flex; justify-content: space-between; align-items: center; background: var(--card-bg); }
        .notification-header h3 { font-size: 16px; color: var(--text-primary); margin: 0; }
        .notification-mark-all { background: none; border: none; color: #667eea; cursor: pointer; font-size: 13px; }
        .notification-list { padding: 10px; max-height: 450px; overflow-y: auto; }
        .notification-item { padding: 12px 15px; border-radius: 10px; margin-bottom: 8px; cursor: pointer; transition: background 0.2s; display: flex; gap: 12px; }
        .notification-item:hover { background: rgba(102,126,234,0.05); }
        .notification-item.unread { background: rgba(102,126,234,0.08); border-left: 3px solid #667eea; }
        .notification-icon { width: 40px; height: 40px; border-radius: 10px; display: flex; align-items: center; justify-content: center; font-size: 20px; flex-shrink: 0; }
        .notification-icon.system { background: linear-gradient(135deg, #667eea, #764ba2); }
        .notification-icon.interaction { background: linear-gradient(135deg, #FF6B6B, #FF8E8E); }
        .notification-icon.recommend { background: linear-gradient(135deg, #FFD700, #FFA500); }
        .notification-content { flex: 1; min-width: 0; }
        .notification-title { font-size: 14px; font-weight: 500; color: var(--text-primary); margin-bottom: 4px; }
        .notification-desc { font-size: 12px; color: var(--text-secondary); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
        .notification-time { font-size: 11px; color: #999; margin-top: 6px; }
        
        /* 数据统计样式 */
        .stats-section { background: var(--card-bg); border-radius: 15px; padding: 20px; margin-bottom: 20px; box-shadow: 0 2px 10px rgba(0,0,0,0.05); }
        .stats-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); gap: 15px; margin-bottom: 20px; }
        .stat-card { background: linear-gradient(135deg, rgba(102,126,234,0.08) 0%, rgba(118,75,162,0.08) 100%); border-radius: 12px; padding: 20px; text-align: center; transition: transform 0.2s; }
        .stat-card:hover { transform: translateY(-3px); }
        .stat-card-icon { font-size: 32px; margin-bottom: 10px; }
        .stat-card-value { font-size: 28px; font-weight: bold; color: var(--text-primary); margin-bottom: 5px; }
        .stat-card-label { font-size: 13px; color: var(--text-secondary); }
        .chart-container { background: rgba(102,126,234,0.05); border-radius: 12px; padding: 20px; }
        .chart-title { font-size: 16px; font-weight: 500; color: var(--text-primary); margin-bottom: 15px; }
        .time-chart { display: flex; gap: 8px; align-items: flex-end; height: 150px; padding: 10px 0; }
        .time-bar { flex: 1; background: linear-gradient(180deg, #667eea 0%, #764ba2 100%); border-radius: 6px 6px 0 0; transition: height 0.3s; min-height: 5px; position: relative; }
        .time-bar:hover { opacity: 0.8; }
        .time-bar-label { position: absolute; bottom: -25px; left: 50%; transform: translateX(-50%); font-size: 11px; color: var(--text-secondary); white-space: nowrap; }
        .time-bar-value { position: absolute; top: -25px; left: 50%; transform: translateX(-50%); font-size: 11px; font-weight: bold; color: #667eea; white-space: nowrap; }
        
        /* 榜单系统样式 */
        .chart-tabs { display: flex; gap: 10px; margin-bottom: 15px; flex-wrap: wrap; }
        .chart-tab { padding: 8px 16px; background: var(--bg-secondary); border: none; border-radius: 20px; cursor: pointer; font-size: 14px; color: var(--text-secondary); transition: all 0.2s; }
        .chart-tab:hover { background: rgba(102,126,234,0.1); }
        .chart-tab.active { background: linear-gradient(135deg, #667eea, #764ba2); color: white; box-shadow: 0 2px 8px rgba(102,126,234,0.3); }
        
        /* 数据统计样式 */
        .stats-panel { padding: 10px 0; }
        .stats-card { background: linear-gradient(135deg, rgba(102,126,234,0.1), rgba(118,75,162,0.1)); border-radius: 10px; padding: 15px; margin-bottom: 15px; }
        .stats-card-title { font-size: 14px; font-weight: bold; color: #667eea; margin-bottom: 12px; display: flex; align-items: center; gap: 8px; }
        .stats-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 10px; }
        .stat-item { background: white; border-radius: 8px; padding: 12px; text-align: center; box-shadow: 0 2px 6px rgba(0,0,0,0.05); }
        .stat-item-value { font-size: 22px; font-weight: bold; color: #667eea; }
        .stat-item-label { font-size: 11px; color: #888; margin-top: 4px; }
        .time-chart { margin-top: 10px; }
        .time-chart-title { font-size: 12px; color: #666; margin-bottom: 8px; }
        .time-bars { display: flex; align-items: flex-end; gap: 6px; height: 100px; padding: 10px 0; }
        .time-bar { flex: 1; background: linear-gradient(180deg, #667eea 0%, #764ba2 100%); border-radius: 4px 4px 0 0; transition: height 0.3s; min-height: 5px; position: relative; }
        .time-bar:hover { opacity: 0.8; }
        .time-bar-label { position: absolute; bottom: -22px; left: 50%; transform: translateX(-50%); font-size: 10px; color: #888; white-space: nowrap; }
        .time-bar-value { position: absolute; top: -22px; left: 50%; transform: translateX(-50%); font-size: 10px; font-weight: bold; color: #667eea; white-space: nowrap; }
        
        /* 头部 */
        .header { text-align: center; padding: 30px 0; }
        .header h1 { font-size: 28px; margin-bottom: 10px; }
        .header p { color: #888; }
        .stats { display: flex; justify-content: center; gap: 40px; margin-top: 20px; }
        .stat { text-align: center; }
        .stat-num { font-size: 32px; font-weight: bold; color: #FF6B6B; }
        .stat-label { font-size: 12px; color: #888; margin-top: 5px; }
        
        /* 主布局 */
        .main { display: grid; grid-template-columns: 250px 1fr 300px; gap: 20px; margin-top: 20px; }
        @media (max-width: 1024px) { .main { grid-template-columns: 1fr; } }
        @media (max-width: 768px) { .main { grid-template-columns: 1fr; } }
        
        /* Top10 排行榜 */
        .top10-section { background: var(--card-bg); border-radius: 15px; padding: 20px; box-shadow: 0 2px 10px rgba(0,0,0,0.05); }
        .section-header { margin-bottom: 15px; }
        .section-header h2 { font-size: 16px; color: #333; margin-bottom: 5px; }
        .section-desc { font-size: 12px; color: #888; }
        
        .top10-list { max-height: 400px; overflow-y: auto; }
        .top10-item { display: flex; align-items: center; padding: 10px; border-radius: 8px; cursor: pointer; transition: all 0.2s; margin-bottom: 5px; }
        .top10-item:hover { background: rgba(255,107,107,0.1); }
        .top10-rank { width: 28px; height: 28px; border-radius: 50%; background: #f0f0f0; color: #666; display: flex; align-items: center; justify-content: center; font-size: 12px; font-weight: bold; margin-right: 10px; }
        .top10-rank.top3 { background: linear-gradient(135deg, #FFD700, #FFA500); color: white; }
        .top10-cover { width: 40px; height: 40px; border-radius: 5px; margin-right: 10px; object-fit: cover; }
        .top10-info { flex: 1; min-width: 0; }
        .top10-name { font-size: 13px; color: #333; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
        .top10-count { font-size: 11px; color: #FF6B6B; margin-top: 2px; }
        .top10-vip { font-size: 10px; color: #FFD700; margin-left: 5px; }
        
        /* 歌曲列表 */
        .song-list-section { background: var(--card-bg); border-radius: 15px; padding: 20px; box-shadow: 0 2px 10px rgba(0,0,0,0.05); }
        .song-list-header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 15px; }
        .song-list-header h2 { font-size: 18px; color: #333; }
        
        .song-list { max-height: 500px; overflow-y: auto; }
        .song-item { display: flex; align-items: center; padding: 12px 15px; border-radius: 8px; cursor: pointer; transition: all 0.2s; margin-bottom: 5px; }
        .song-item:hover { background: rgba(255,107,107,0.1); }
        .song-item.active { background: rgba(255,107,107,0.2); border-left: 3px solid #FF6B6B; }
        .song-index { width: 30px; color: #999; font-size: 12px; }
        .song-cover { width: 45px; height: 45px; border-radius: 6px; margin-right: 12px; object-fit: cover; }
        .song-info { flex: 1; }
        .song-name { font-size: 14px; margin-bottom: 3px; color: #333; }
        .song-artist { font-size: 12px; color: #888; }
        .song-duration { font-size: 12px; color: #999; }
        
        /* 分页 */
        .pagination { display: flex; justify-content: center; gap: 5px; margin-top: 20px; flex-wrap: wrap; }
        .page-btn { padding: 8px 15px; background: white; border: 1px solid #e0e0e0; border-radius: 5px; color: #666; cursor: pointer; }
        .page-btn:hover, .page-btn.active { background: #FF6B6B; color: white; border-color: #FF6B6B; }
        .page-btn:disabled { opacity: 0.5; cursor: not-allowed; }
        
        /* 播放器区域 */
        .player-section { background: var(--card-bg); border-radius: 15px; padding: 20px; position: sticky; top: 20px; box-shadow: 0 2px 10px rgba(0,0,0,0.05); }
        .player-cover { width: 100%; aspect-ratio: 1; border-radius: 10px; margin-bottom: 15px; object-fit: cover; }
        .player-title { font-size: 18px; margin-bottom: 5px; color: #333; }
        .player-artist { font-size: 14px; color: #888; margin-bottom: 15px; }
        
        /* 进度条 */
        .progress-container { margin: 15px 0; }
        .progress-bar { width: 100%; height: 4px; background: rgba(255,255,255,0.1); border-radius: 2px; cursor: pointer; }
        .progress-fill { height: 100%; background: #FF6B6B; border-radius: 2px; width: 0%; transition: width 0.1s; }
        .progress-time { display: flex; justify-content: space-between; font-size: 12px; color: #888; margin-top: 5px; }
        
        /* 播放控制 */
        .controls { display: flex; justify-content: center; gap: 15px; margin-top: 15px; }
        .control-btn { width: 45px; height: 45px; border-radius: 50%; border: none; background: #f0f0f0; color: #333; font-size: 16px; cursor: pointer; }
        .control-btn.play { width: 55px; height: 55px; background: #FF6B6B; color: white; font-size: 20px; }
        
        /* 分享按钮 */
        .share-section { margin-top: 15px; padding-top: 15px; border-top: 1px solid rgba(0,0,0,0.1); }
        .share-title { font-size: 12px; color: #888; margin-bottom: 10px; text-align: center; }
        .share-buttons { display: flex; justify-content: center; gap: 8px; flex-wrap: wrap; }
        .share-btn { padding: 6px 12px; border-radius: 15px; border: none; cursor: pointer; font-size: 12px; display: flex; align-items: center; gap: 4px; }
        .share-btn.wechat { background: #07C160; color: white; }
        .share-btn.qq { background: #12B7F5; color: white; }
        .share-btn.weibo { background: #E6162D; color: white; }
        .share-btn.douyin { background: #000; color: white; }
        .share-btn.xiaohongshu { background: #FF2442; color: white; }
        .share-btn.copy { background: #667eea; color: white; }
        
        /* 分享弹窗 */
        .share-modal { display: none; position: fixed; top: 0; left: 0; width: 100%; height: 100%; background: rgba(0,0,0,0.5); z-index: 1000; justify-content: center; align-items: center; }
        .share-modal.active { display: flex; }
        .share-modal-content { background: white; border-radius: 15px; padding: 25px; max-width: 400px; width: 90%; }
        .share-modal-title { font-size: 16px; font-weight: bold; margin-bottom: 15px; text-align: center; color: #333; }
        .share-modal-text { background: #f5f5f5; padding: 15px; border-radius: 8px; font-size: 14px; line-height: 1.6; color: #333; margin-bottom: 15px; word-break: break-all; }
        .share-modal-close { width: 100%; padding: 12px; background: #667eea; color: white; border: none; border-radius: 8px; font-size: 14px; cursor: pointer; }
        
        /* 歌词 */
        .lyric-section { margin-top: 20px; }
        .lyric-header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 10px; }
        .lyric-header h3 { font-size: 14px; color: #333; }
        .lyric-toggle { font-size: 12px; color: #888; cursor: pointer; }
        .lyric-content { max-height: 200px; overflow-y: auto; background: #f8f8f8; border-radius: 8px; padding: 15px; font-size: 13px; line-height: 1.8; color: #666; white-space: pre-wrap; }
        .lyric-line { padding: 2px 0; }
        .lyric-line.active { color: #FF6B6B; font-weight: bold; }
        
        /* 加载状态 */
        .loading { text-align: center; padding: 40px; color: #666; }
        
        /* 导航 */
        .navbar { background: var(--card-bg); padding: 12px 20px; display: flex; justify-content: space-between; align-items: center; box-shadow: 0 2px 10px rgba(0,0,0,0.05); }
        .nav-brand { text-decoration: none; color: #FF6B6B; font-weight: bold; }
        .nav-links a { margin-left: 15px; text-decoration: none; color: #888; font-size: 14px; }
        .nav-links a.active { color: #FF6B6B; }
        
        /* 页脚 */
        .footer { text-align: center; padding: 30px; font-size: 12px; color: #999; margin-top: 30px; }
        
        /* 登录弹窗样式 */
        .login-modal-overlay { position: fixed; top: 0; left: 0; right: 0; bottom: 0; background: rgba(0,0,0,0.5); display: none; align-items: center; justify-content: center; z-index: 3000; }
        .login-modal-overlay.show { display: flex; }
        .login-modal { background: white; border-radius: 20px; padding: 30px; width: 100%; max-width: 400px; box-shadow: 0 10px 40px rgba(0,0,0,0.2); position: relative; }
        .login-modal-header { text-align: center; margin-bottom: 25px; }
        .login-modal-title { font-size: 24px; font-weight: bold; color: #333; margin-bottom: 8px; }
        .login-modal-desc { color: #888; font-size: 14px; }
        .login-tabs { display: flex; gap: 10px; margin-bottom: 25px; }
        .login-tab { flex: 1; padding: 12px; border: none; background: #f5f5f5; border-radius: 10px; cursor: pointer; font-size: 14px; transition: all 0.2s; }
        .login-tab.active { background: linear-gradient(135deg, #667eea, #764ba2); color: white; }
        .login-form-group { margin-bottom: 20px; }
        .login-form-label { display: block; margin-bottom: 8px; font-size: 14px; color: #666; }
        .login-form-input { width: 100%; padding: 12px 16px; border: 2px solid #e0e0e0; border-radius: 10px; font-size: 14px; transition: border-color 0.2s; box-sizing: border-box; }
        .login-form-input:focus { outline: none; border-color: #667eea; }
        .login-btn { width: 100%; padding: 14px; border: none; background: linear-gradient(135deg, #667eea, #764ba2); color: white; border-radius: 10px; font-size: 16px; font-weight: bold; cursor: pointer; transition: transform 0.2s; }
        .login-btn:hover { transform: translateY(-2px); }
        .login-close { position: absolute; top: 15px; right: 20px; font-size: 24px; color: #aaa; cursor: pointer; transition: color 0.2s; }
        .login-close:hover { color: #666; }
