:root{--ty-blue: #66CCFF;--ty-dark: #3399FF;--glass: rgba(15, 23, 42, .75);--glass-border: rgba(255, 255, 255, .1);--text-main: #f8fafc;--text-dim: #94a3b8}body{margin:0;background:#020617;color:var(--text-main);font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;overflow:hidden}.app-container{max-width:480px;margin:0 auto;height:100vh;position:relative;display:flex;flex-direction:column;box-shadow:0 0 100px #00000080}.background-layer{position:absolute;top:0;right:0;bottom:0;left:0;z-index:-1;overflow:hidden}.bg-img{width:100%;height:100%;object-fit:cover;filter:brightness(.4) contrast(1.1);transform:scale(1.05)}.bg-fallback{width:100%;height:100%;background:linear-gradient(135deg,#0f172a,#1e1b4b)}.bg-overlay{position:absolute;top:0;right:0;bottom:0;left:0;background:radial-gradient(circle at 50% 20%,rgba(102,204,255,.15),transparent);-webkit-backdrop-filter:blur(30px);backdrop-filter:blur(30px)}.glass-header{padding:24px 20px;display:flex;justify-content:space-between;align-items:center;z-index:10}.brand-info{display:flex;align-items:center;gap:14px}.logo-circle{background:var(--ty-blue);color:#020617;padding:10px;border-radius:16px;box-shadow:0 0 25px #6cf6}.brand-info h1{font-size:1.2rem;margin:0;font-weight:800}.cloud-status{display:flex;align-items:center;gap:5px;font-size:.7rem;color:var(--ty-blue);margin-top:4px;font-weight:600}.action-icon-btn{background:#ffffff14;border:1px solid var(--glass-border);color:#fff;padding:10px;border-radius:50%;cursor:pointer;transition:.3s}.action-icon-btn:hover{background:var(--ty-blue);color:#020617;transform:rotate(180deg)}.content-area{flex:1;overflow:hidden;padding:0 20px 20px}.view-wrapper{height:100%;display:flex;flex-direction:column}.section-header{display:flex;align-items:center;gap:10px;margin-bottom:20px;font-weight:700;color:var(--ty-blue);font-size:.85rem;letter-spacing:1px}.card-stack{display:flex;flex-direction:column;gap:16px}.main-card{background:var(--glass);border:1px solid var(--glass-border);border-radius:32px;padding:32px 24px;text-align:center;cursor:pointer;transition:.4s;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px)}.main-card:hover{transform:translateY(-8px);border-color:var(--ty-blue);box-shadow:0 20px 40px #0006}.disc-wrapper{position:relative;width:120px;height:120px;margin:0 auto 20px}.rotating-disc{color:var(--ty-blue);opacity:.8;animation:rotate 12s linear infinite}.play-hint{position:absolute;top:0;right:0;bottom:0;left:0;display:flex;align-items:center;justify-content:center;opacity:0;transition:.3s}.main-card:hover .play-hint{opacity:1}.card-meta h3{margin:0;font-size:1.2rem;font-weight:800}.card-meta p{color:var(--text-dim);font-size:.8rem;margin:8px 0 0}.sub-card{background:#ffffff0d;border:1px solid var(--glass-border);border-radius:20px;padding:16px 20px;display:flex;align-items:center;gap:16px;cursor:pointer;transition:.3s}.sub-card:hover{background:#ffffff1a;border-color:var(--ty-blue)}.sub-card-icon{background:#66ccff1a;color:var(--ty-blue);padding:8px;border-radius:12px}.sub-card-info{flex:1}.sub-card-info h4{margin:0;font-size:.9rem}.sub-card-info p{margin:2px 0 0;font-size:.7rem;color:var(--text-dim)}.top-nav{display:flex;align-items:center;gap:16px;margin-bottom:20px}.back-btn{background:var(--glass);border:1px solid var(--glass-border);color:#fff;padding:10px;border-radius:12px;cursor:pointer}.title-group h2{margin:0;font-size:1.3rem;font-weight:800}.title-group p{margin:2px 0 0;font-size:.75rem;color:var(--text-dim)}.search-bar{position:relative;margin-bottom:16px}.s-icon{position:absolute;left:16px;top:50%;transform:translateY(-50%);color:var(--text-dim)}.search-bar input{width:100%;background:var(--glass);border:1px solid var(--glass-border);padding:14px 14px 14px 48px;border-radius:16px;color:#fff;outline:none;box-sizing:border-box}.song-scroll-list{flex:1;overflow-y:auto;padding-right:4px}.song-row{display:flex;align-items:center;gap:12px;padding:12px;background:#ffffff08;border-radius:18px;margin-bottom:10px;border:1px solid transparent;transition:.2s}.song-row:hover{background:#ffffff12;border-color:var(--ty-blue)}.move-controls{display:flex;flex-direction:column;gap:4px}.move-controls button{background:#ffffff0d;border:none;color:var(--text-dim);padding:4px;border-radius:6px;cursor:pointer;transition:.2s}.move-controls button:hover:not(:disabled){background:var(--ty-blue);color:#020617}.move-controls button:disabled{opacity:.2;cursor:not-allowed}.song-details{flex:1;min-width:0;cursor:pointer}.song-details h4{margin:0;font-size:.95rem;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.song-details p{margin:4px 0 0;font-size:.7rem;color:var(--text-dim)}.play-trigger{background:var(--ty-blue);color:#020617;border:none;padding:8px 14px;border-radius:12px;font-size:.75rem;font-weight:800;display:flex;align-items:center;gap:6px;cursor:pointer}.loading-view{height:100%;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:20px;color:var(--ty-blue)}.spin{animation:spin 1s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}@keyframes rotate{0%{transform:rotate(0)}to{transform:rotate(360deg)}}.toast-popup{position:fixed;bottom:30px;left:50%;transform:translate(-50%);background:var(--ty-blue);color:#020617;padding:12px 24px;border-radius:50px;display:flex;align-items:center;gap:10px;font-weight:800;z-index:100;font-size:.85rem}