* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
        }
        
        body {
            background: linear-gradient(135deg, #1a2a6c, #b21f1f, #fdbb2d);
            min-height: 100vh;
            display: flex;
            justify-content: center;
            align-items: center;
            padding: 20px;
            color: #fff;
        }
        
        .container {
            text-align: center;
            max-width: 800px;
            padding: 30px;
            background: rgba(0, 0, 0, 0.3);
            border-radius: 20px;
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.4);
        }
        
        h1 {
            margin-bottom: 10px;
            font-size: 2.5rem;
            text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.5);
        }
        
        p {
            margin-bottom: 30px;
            font-size: 1.2rem;
            opacity: 0.9;
        }
        
        /* 音乐播放器样式 */
        .music-player {
            position: fixed;
            left: 0;
            top: auto;
            bottom: 100px;
            transform: none;
            width: 60px;
            height: 34px;
            background: rgba(20, 20, 20, 0.95);
            border-radius: 0 10px 10px 0;
            box-shadow: 5px 0 15px rgba(0, 0, 0, 0.5);
            transition: all 0.5s cubic-bezier(0.68, -0.55, 0.27, 1.55);
            z-index: 1000;
            overflow: hidden;
        }
        
        .music-player.expanded {
            width: 280px;
            height: 157.5px;
            top: 50%;
            bottom: auto;
            transform: translateY(-50%);
        }
        
        .toggle-btn {
            position: absolute;
            right: 15px;
            top: 50%;
            transform: translateY(-50%);
            background: #ff6b6b;
            color: white;
            width: 30px;
            height: 30px;
            border-radius: 50%;
            display: flex;
            justify-content: center;
            align-items: center;
            cursor: pointer;
            z-index: 10;
            transition: all 0.3s;
            box-shadow: 0 4px 10px rgba(255, 107, 107, 0.4);
        }
        
        .expanded .toggle-btn {
            top: 15px;
            right: 15px;
            transform: none;
        }
        
        .toggle-btn:hover {
            transform: scale(1.1) translateY(-50%);
            background: #ff5252;
        }
        
        .expanded .toggle-btn:hover {
            transform: scale(1.1);
        }
        
        .player-content {
            padding: 15px;
            opacity: 0;
            transition: opacity 0.3s;
            height: 100%;
            display: flex;
            flex-direction: row;
            align-items: center;
        }
        
        .expanded .player-content {
            opacity: 1;
        }
        
        .album-cover {
            width: 120px;
            height: 100%;
            border-radius: 8px;
            margin-right: 15px;
            overflow: hidden;
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.5);
            flex-shrink: 0;
        }
        
        .album-cover img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        
        .player-details {
            flex: 1;
            display: flex;
            flex-direction: column;
            height: 100%;
            justify-content: space-between;
        }
        
        .song-info {
            margin-bottom: 8px;
        }
        
        .song-title {
            font-size: 1.1rem;
            font-weight: 600;
            margin-bottom: 4px;
            overflow: hidden;
            text-overflow: ellipsis;
            white-space: nowrap;
        }
        
        .artist {
            font-size: 0.85rem;
            opacity: 0.8;
        }
        
        .progress-area {
            margin: 8px 0;
        }
        
        .progress-bar {
            height: 4px;
            width: 100%;
            background: rgba(255, 255, 255, 0.1);
            border-radius: 8px;
            cursor: pointer;
            margin-bottom: 4px;
        }
        
        .progress {
            height: 100%;
            width: 0%;
            background: #ff6b6b;
            border-radius: 8px;
            position: relative;
            transition: width 0.1s linear;
        }
        
        .progress::after {
            content: "";
            position: absolute;
            height: 10px;
            width: 10px;
            border-radius: 50%;
            background: #ff6b6b;
            right: -5px;
            top: 50%;
            transform: translateY(-50%);
            opacity: 0;
            transition: opacity 0.2s;
        }
        
        .progress-bar:hover .progress::after {
            opacity: 1;
        }
        
        .timer {
            display: flex;
            justify-content: space-between;
            font-size: 0.65rem;
            opacity: 0.7;
        }
        
        .controls {
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin: 8px 0;
        }
        
        .controls i {
            font-size: 0.9rem;
            cursor: pointer;
            opacity: 0.7;
            transition: all 0.3s;
        }
        
        .controls i:hover {
            opacity: 1;
            transform: scale(1.1);
        }
        
        .controls .play-pause {
            width: 35px;
            height: 35px;
            background: #ff6b6b;
            border-radius: 50%;
            display: flex;
            justify-content: center;
            align-items: center;
            box-shadow: 0 4px 10px rgba(255, 107, 107, 0.4);
        }
        
        .controls .play-pause i {
            margin: 0;
            font-size: 1rem;
            opacity: 1;
        }
        
        .volume-control {
            display: flex;
            align-items: center;
            margin-top: 4px;
        }
        
        .volume-control i {
            margin-right: 6px;
            opacity: 0.7;
            font-size: 0.8rem;
        }
        
        .volume-slider {
            flex: 1;
            height: 3px;
            background: rgba(255, 255, 255, 0.1);
            border-radius: 8px;
            position: relative;
            cursor: pointer;
        }
        
        .volume-progress {
            height: 100%;
            width: 70%;
            background: #ff6b6b;
            border-radius: 8px;
        }
        
        /* 响应式设计优化 */
        @media (max-width: 1200px) {
            .music-player.expanded {
                width: 250px;
                height: 140px;
            }
            
            .album-cover {
                width: 100px;
            }
            
            .song-title {
                font-size: 1rem;
            }
        }
        
        @media (max-width: 992px) {
            .music-player.expanded {
                width: 230px;
                height: 129px;
            }
            
            .album-cover {
                width: 90px;
                margin-right: 12px;
            }
            
            .player-content {
                padding: 12px;
            }
            
            .song-title {
                font-size: 0.95rem;
            }
            
            .artist {
                font-size: 0.8rem;
            }
            
            .controls i {
                font-size: 0.85rem;
            }
            
            .controls .play-pause {
                width: 32px;
                height: 32px;
            }
        }
        
        @media (max-width: 768px) {
            .music-player.expanded {
                width: 210px;
                height: 118px;
            }
            
            .album-cover {
                width: 80px;
            }
            
            .player-content {
                padding: 10px;
            }
            
            .song-title {
                font-size: 0.9rem;
            }
            
            .controls i {
                font-size: 0.8rem;
                margin: 0 4px;
            }
            
            .toggle-btn {
                width: 28px;
                height: 28px;
            }
        }
        
        @media (max-width: 576px) {
            .music-player {
                width: 60px;
                height: 34px;
                bottom: 100px;
            }
            
            .music-player.expanded {
                position: fixed;
                width: 90%;
                max-width: 300px;
                height: auto;
                min-height: 180px;
                top: 50%;
                left: 50%;
                transform: translate(-50%, -50%);
                bottom: auto;
                border-radius: 15px;
                z-index: 2000;
            }
            
            .toggle-btn {
                right: 10px;
                top: 50%;
                transform: translateY(-50%);
                width: 26px;
                height: 26px;
            }
            
            .expanded .toggle-btn {
                top: 10px;
                transform: none;
            }
            
            .album-cover {
                width: 100px;
                height: 100px;
                margin: 0 auto 10px;
            }
            
            .player-content {
                padding: 15px;
                flex-direction: column;
                text-align: center;
            }
            
            .player-details {
                width: 100%;
            }
            
            .song-title {
                font-size: 1.1rem;
            }
            
            .controls i {
                font-size: 0.9rem;
            }
        }
        
        @media (max-width: 400px) {
            .music-player.expanded {
                width: 95%;
                max-width: 280px;
            }
            
            .album-cover {
                width: 80px;
                height: 80px;
            }
            
            .player-content {
                padding: 12px;
            }
        }
        
        /* 防止内容被播放器遮挡 */
        @media (max-width: 768px) {
            .container {
                margin-left: 20px;
            }
        }
        
        @media (max-width: 576px) {
            .container {
                margin-left: 0;
                margin-top: 20px;
            }
        }