body {
            background: #181c26;
            color: #fff;
            font-family: 'Figtree', Arial, sans-serif;
        }
        .musicplayer-main {
            display: flex;
            gap: 0;
            max-width: 1100px;
            margin: 3rem auto 0 auto;
            border-radius: 14px;
            min-height: 500px;
            box-shadow: 0 8px 36px 0 rgba(0,0,0,.11),0 2px 10px 0 rgba(0,0,0,0.05);
            background: #222634;
            overflow: hidden;
        }
        .musicplayer-sidebar {
            width: 320px;
            min-width: 180px;
            max-width: 400px;
            background: #232937;
            border-right: 1px solid #262b39;
            padding: 0;
            display: flex;
            flex-direction: column;
            overflow-y: auto;
            height: 500px;
        }
        .musicplayer-sidebar h2 {
            padding: 2rem 2rem 1rem 2rem;
            margin: 0;
            font-size: 1.18rem;
            font-weight: 700;
            letter-spacing: 0.5px;
        }
        .sidebar-searchbox {
            padding: 0 2rem 0.6rem 2rem;
            display: flex;
            align-items: center;
        }
        .sidebar-searchbox input {
            width: 100%;
            padding: 0.6rem 1rem;
            border-radius: 8px;
            border: 1px solid #2d3444;
            background: #181c26;
            color: #fff;
            font-size: 1rem;
        }
        .tracklist {
            flex: 1;
            overflow-y: auto;
            padding: 0 0.4rem 0.8rem 0.4rem;
        }
        .tracklist-btn {
            display: flex;
            align-items: flex-start;
            gap: 1rem;
            width: 100%;
            background: transparent;
            color: #fff;
            border: none;
            border-radius: 9px;
            text-align: left;
            padding: 1.05rem 1.2rem 1.05rem 1.2rem;
            font-size: 1rem;
            font-weight: 500;
            margin-bottom: 0.3rem;
            cursor: pointer;
            transition: background 0.15s, color 0.13s;
        }
        .tracklist-btn.selected,
        .tracklist-btn:hover {
            background: #313a4b;
            color: #7dafea;
        }
        .tracklist-title {
            font-weight: 600;
        }
        .tracklist-artist {
            color: #b7bacb;
            font-size: 0.93rem;
        }
        .musicplayer-content {
            flex: 1;
            display: flex;
            align-items: center;
            justify-content: center;
            padding: 0 2.5rem;
            min-width: 0;
        }
        .player-card {
            background: #232937;
            border-radius: 1.2rem;
            padding: 2.2rem 2rem;
            box-shadow: 0 2px 12px 0 rgba(0,0,0,.10),0 1.5px 6.5px 0 rgba(0,0,0,0.07);
            display: flex;
            flex-direction: column;
            align-items: center;
            width: 340px;
            max-width: 100%;
        }
        .player-cover {
            width: 140px;
            height: 140px;
            border-radius: 1rem;
            background: #2a3344;
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 1.5rem;
            overflow: hidden;
            box-shadow: 0 2px 8px 0 rgba(0,0,0,0.13);
        }
        .player-cover img {
            width: 100%; height: 100%; object-fit: cover;
        }
        .player-title {
            font-size: 1.28rem;
            font-weight: bold;
            margin-bottom: 0.2rem;
            color: #fff;
            text-align: center;
        }
        .player-artist {
            color: #b7bacb;
            font-size: 1rem;
            margin-bottom: 1.1rem;
            text-align: center;
        }
        .player-audio {
            width: 100%;
            max-width: 340px;
            outline: none;
        }
        @media (max-width: 900px) {
            .musicplayer-main { flex-direction: column; min-height: unset;}
            .musicplayer-sidebar { width: 100%; max-width: 100vw; height: auto; min-width: 0;}
            .musicplayer-content { padding: 2rem 1rem;}
        }
        @media (max-width: 600px) {
            .player-card { padding: 1.5rem 0.2rem;}
            .player-cover { width: 80px; height: 80px;}
        }