.app{display:flex;flex-direction:column;height:100vh;overflow:hidden;background:radial-gradient(circle at 16% 18%,rgba(83,230,190,.1),transparent 32%),linear-gradient(135deg,rgba(255,255,255,.018),transparent 42%)}.app-body{display:flex;flex:1;overflow:hidden;padding:12px 12px 0;gap:12px}.sidebar{width:240px;min-width:240px;background:var(--bg-sidebar);border:1px solid var(--border-color);border-radius:22px;box-shadow:var(--shadow);-webkit-backdrop-filter:blur(22px);backdrop-filter:blur(22px);display:flex;flex-direction:column;padding-top:18px;overflow-y:auto;transition:width .2s,min-width .2s;z-index:10}.sidebar.collapsed{width:64px;min-width:64px}.sidebar-logo{display:flex;align-items:center;gap:10px;padding:0 18px;margin-bottom:22px;color:var(--text-primary)}.sidebar.collapsed .sidebar-logo{justify-content:center;padding:0}.sidebar-logo-text{font-size:17px;font-weight:800;letter-spacing:0}.sidebar-logo-mark{width:34px;height:34px;border-radius:10px;box-shadow:0 8px 24px #53e6be29;flex-shrink:0}.sidebar-nav{display:flex;flex-direction:column;gap:6px;padding:0 10px}.sidebar-nav-item{display:flex;align-items:center;gap:12px;padding:10px 12px;border-radius:14px;color:var(--text-secondary);font-size:14px;font-weight:600;transition:color .2s,background .2s,transform .2s}.sidebar.collapsed .sidebar-nav-item{justify-content:center;padding:8px}.sidebar-nav-item:hover{color:var(--text-primary);background:#ffffff0e;transform:translate(2px)}.sidebar-nav-item.active{color:var(--text-primary);background:linear-gradient(135deg,#53e6be2e,#ffffff0f);box-shadow:inset 0 0 0 1px #53e6be38}.sidebar-divider{height:1px;background:var(--border-color);margin:18px}.sidebar-section-title{padding:0 18px;margin-bottom:12px;font-size:12px;font-weight:700;text-transform:uppercase;letter-spacing:.1em;color:var(--text-secondary)}.sidebar-actions{display:flex;flex-direction:column;gap:2px;padding:0 8px;margin-bottom:16px}.sidebar-action-btn{display:flex;align-items:center;gap:12px;padding:8px 16px;border-radius:4px;color:var(--text-secondary);font-size:14px;font-weight:600;transition:color .2s,background .2s}.sidebar-action-btn:hover{color:var(--text-primary);background:var(--bg-highlight)}.sidebar-create-input{display:flex;gap:8px;padding:0 16px 12px}.sidebar-create-input input{flex:1;padding:6px 10px;border-radius:12px;border:1px solid var(--border-color);background:var(--bg-elevated);color:var(--text-primary);font-size:13px;outline:none}.sidebar-create-input input:focus{border-color:var(--accent)}.sidebar-create-input button{padding:6px 12px;border-radius:12px;background:var(--accent);color:#000;font-size:13px;font-weight:600}.sidebar-empty{padding:8px 16px;font-size:12px;color:var(--text-subdued)}.sidebar-playlists{flex:1;overflow-y:auto;padding:0 10px 12px}.sidebar-playlist-item{display:block;width:100%;text-align:left;padding:9px 12px;font-size:14px;color:var(--text-secondary);border-radius:12px;transition:color .2s,background .2s;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.sidebar-playlist-item:hover{color:var(--text-primary);background:var(--bg-highlight)}.sidebar-toggle{position:fixed;top:8px;left:8px;z-index:100;padding:6px;border-radius:12px;color:var(--text-secondary);background:#00000080;display:none;transition:color .2s}.sidebar-toggle:hover{color:var(--text-primary)}.main-content{flex:1;overflow-y:auto;background:radial-gradient(circle at 50% -10%,rgba(83,230,190,.13),transparent 32%),linear-gradient(180deg,#ffffff0e,#ffffff05 320px,#ffffff03);border:1px solid var(--border-color);border-radius:22px;box-shadow:var(--shadow);-webkit-backdrop-filter:blur(20px);backdrop-filter:blur(20px);padding-bottom:16px}.home-view{padding:0 32px}.hero-section{position:relative;padding:64px 0 48px;overflow:hidden}.hero-title{font-size:48px;font-weight:800;line-height:1.1;letter-spacing:0;background:linear-gradient(135deg,#f6fbf7,#8ff0d2 55%,#53e6be);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.hero-subtitle{margin-top:16px;font-size:18px;color:var(--text-secondary);font-weight:400}.home-section{margin-top:40px}.section-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:20px}.section-title{font-size:24px;font-weight:700;letter-spacing:-.02em}.playlist-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(180px,1fr));gap:24px}.playlist-card{background:var(--bg-card);border:1px solid var(--border-color);border-radius:16px;overflow:hidden;cursor:pointer;transition:background .3s,transform .2s,border-color .2s,box-shadow .2s;padding:16px;box-shadow:0 14px 36px #00000029}.playlist-card:hover{background:var(--bg-card-hover);border-color:#53e6be3d;box-shadow:var(--glow);transform:translateY(-2px)}.playlist-card:hover .playlist-card-overlay{opacity:1;transform:translateY(0)}.playlist-card-cover{position:relative;width:100%;aspect-ratio:1;border-radius:12px;overflow:hidden;box-shadow:0 12px 28px #00000047;margin-bottom:16px}.playlist-card-overlay{position:absolute;top:0;right:0;bottom:0;left:0;background:linear-gradient(180deg,transparent 35%,rgba(5,12,17,.72));display:flex;align-items:flex-end;justify-content:flex-end;padding:12px;opacity:0;transform:translateY(8px);transition:opacity .3s,transform .3s}.play-button{width:48px;height:48px;border-radius:50%;background:linear-gradient(135deg,var(--accent),#9df7dc);color:#071016;display:flex;align-items:center;justify-content:center;box-shadow:0 12px 28px #53e6be47;transition:transform .15s,background .15s}.play-button:hover{transform:scale(1.06);background:var(--accent-hover)}.playlist-card-title{font-size:16px;font-weight:700;color:var(--text-primary);margin-bottom:4px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.playlist-card-desc{font-size:13px;color:var(--text-secondary);line-height:1.4;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}.search-view{padding:24px 32px}.search-bar{display:flex;align-items:center;gap:12px;background:var(--bg-elevated);border:1px solid var(--border-color);border-radius:18px;padding:12px 20px;margin-bottom:32px;color:var(--text-secondary);transition:background .2s,outline .2s;outline:1px solid transparent}.search-bar:focus-within{outline:1px solid rgba(83,230,190,.45);background:var(--bg-elevated-hover);color:var(--text-primary)}.search-input{flex:1;background:none;border:none;outline:none;color:var(--text-primary);font-size:14px;font-family:inherit}.search-input::placeholder{color:var(--text-secondary)}.search-clear{padding:4px;border-radius:50%;color:var(--text-secondary);transition:color .2s}.search-clear:hover{color:var(--text-primary)}.search-section{margin-bottom:40px}.search-song-list .track-row{padding:8px 12px}.search-empty{text-align:center;padding:48px 0;color:var(--text-secondary);font-size:16px}.search-browse{margin-top:8px}.category-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(180px,1fr));gap:24px;margin-top:20px}.category-card{aspect-ratio:1;border-radius:16px;display:flex;align-items:flex-end;padding:16px;cursor:pointer;transition:transform .2s,opacity .2s;position:relative;overflow:hidden}.category-card:after{content:"";position:absolute;top:0;right:0;bottom:0;left:0;background:linear-gradient(180deg,transparent 40%,rgba(0,0,0,.4) 100%)}.category-card:hover{transform:scale(1.02)}.category-name{font-size:18px;font-weight:700;position:relative;z-index:1}.library-view{padding:24px 32px}.library-header{display:flex;flex-direction:column;gap:20px;margin-bottom:32px}.library-header-top{display:flex;align-items:center;gap:16px}.import-music-btn{display:inline-flex;align-items:center;gap:6px;padding:8px 16px;border-radius:20px;font-size:13px;font-weight:500;background:var(--bg-elevated);color:var(--text-secondary);transition:all .2s}.import-music-btn:hover{color:var(--text-primary);background:var(--bg-elevated-hover)}.library-title{font-size:32px;font-weight:700}.library-tabs{display:flex;gap:8px}.library-tab{padding:8px 16px;border-radius:999px;font-size:14px;font-weight:500;background:var(--bg-elevated);color:var(--text-primary);transition:background .2s}.library-tab:hover{background:var(--bg-elevated-hover)}.library-tab.active{background:linear-gradient(135deg,var(--accent),#9df7dc);color:#071016}.library-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(180px,1fr));gap:24px}.playlist-detail{padding-bottom:32px}.playlist-detail-hero{position:relative;padding:64px 32px 32px;display:flex;align-items:flex-end;gap:32px;min-height:340px}.playlist-detail-hero:before{content:"";position:absolute;top:0;right:0;bottom:0;left:0;background:linear-gradient(180deg,#0003,#0009)}.back-button{position:absolute;top:24px;left:32px;width:32px;height:32px;border-radius:50%;background:#00000080;display:flex;align-items:center;justify-content:center;color:#fff;z-index:2;transition:background .2s,transform .2s}.back-button:hover{background:#000000b3;transform:scale(1.05)}.playlist-cover-edit-btn{position:absolute;bottom:20px;right:20px;width:32px;height:32px;border-radius:50%;background:#00000059;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);display:flex;align-items:center;justify-content:center;color:#fff;z-index:2;transition:background .2s,transform .2s;border:1px solid rgba(255,255,255,.15)}.playlist-cover-edit-btn:hover{background:#0000008c;transform:scale(1.08)}.playlist-cover-editor{position:absolute;bottom:60px;right:20px;background:var(--bg-elevated);border-radius:12px;padding:16px;z-index:3;box-shadow:0 8px 32px #00000080;min-width:240px}.playlist-cover-editor-section{margin-bottom:12px}.playlist-cover-editor-section:last-child{margin-bottom:0}.playlist-cover-editor-label{font-size:12px;font-weight:600;color:var(--text-secondary);margin-bottom:8px}.playlist-cover-editor .cover-upload-btn{justify-content:flex-start;width:100%}.playlist-cover-editor .color-picker{display:flex;flex-wrap:wrap;gap:6px}.playlist-detail-info{position:relative;z-index:1}.playlist-detail-label{font-size:12px;font-weight:700;text-transform:uppercase;letter-spacing:.1em;margin-bottom:8px;display:block}.playlist-detail-title{font-size:48px;font-weight:800;letter-spacing:-.03em;line-height:1.1;margin-bottom:16px}.playlist-detail-desc{font-size:14px;color:var(--text-secondary);margin-bottom:8px}.playlist-detail-meta{font-size:14px;color:var(--text-secondary)}.playlist-detail-actions{padding:24px 32px;display:flex;align-items:center;gap:24px}.playlist-play-all{width:56px;height:56px;border-radius:50%;background:var(--accent);color:#000;display:flex;align-items:center;justify-content:center;transition:transform .15s,background .15s}.playlist-play-all:hover{transform:scale(1.06);background:var(--accent-hover)}.playlist-detail-tracks{padding:0 32px}.track-list{margin-top:8px}.track-list-header{display:grid;grid-template-columns:40px 1fr 1fr 1fr 36px 60px 40px;gap:16px;padding:8px 16px;border-bottom:1px solid var(--border-color);font-size:12px;font-weight:500;text-transform:uppercase;letter-spacing:.1em;color:var(--text-secondary)}.track-list-body{margin-top:4px}.track-row{display:grid;grid-template-columns:40px 1fr 1fr 1fr 36px 60px 40px;gap:16px;padding:8px 16px;border-radius:12px;align-items:center;cursor:pointer;transition:background .15s,transform .15s;font-size:14px}.track-row:hover{background:var(--bg-card-hover);transform:translate(2px)}.track-row.active{color:var(--accent)}.track-col-num{text-align:center;color:var(--text-secondary);font-size:14px}.track-row.active .track-col-num{color:var(--accent)}.track-col-title{display:flex;align-items:center;gap:12px;min-width:0}.track-cover-mini{width:40px;height:40px;border-radius:10px;flex-shrink:0}.track-title-text{white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.track-row.active .track-title-text{color:var(--accent)}.track-col-artist,.track-col-album{color:var(--text-secondary);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.track-col-like{text-align:center}.track-like-btn{display:inline-flex;align-items:center;justify-content:center;padding:4px;color:var(--text-secondary);transition:color .2s,transform .15s}.track-like-btn:hover{transform:scale(1.2)}.track-like-btn.liked{color:#ec4141}.track-like-btn.liked:hover{color:#d03030}.track-col-duration{color:var(--text-secondary);text-align:right}.equalizer{display:inline-flex;align-items:center;gap:2px;height:16px}.equalizer span{width:3px;background:var(--accent);border-radius:2px;animation:equalize .8s infinite ease-in-out}.equalizer span:nth-child(1){height:8px;animation-delay:0s}.equalizer span:nth-child(2){height:14px;animation-delay:.15s}.equalizer span:nth-child(3){height:6px;animation-delay:.3s}@keyframes equalize{0%,to{transform:scaleY(1)}50%{transform:scaleY(.5)}}.player-bar{display:grid;grid-template-columns:1fr 2fr 1fr;align-items:center;margin:0 12px 12px;padding:10px 18px;background:var(--bg-player);border:1px solid var(--border-color);border-radius:22px;box-shadow:var(--shadow);-webkit-backdrop-filter:blur(22px);backdrop-filter:blur(22px);height:78px;min-height:78px;z-index:20}.player-left{display:flex;align-items:center;min-width:0}.player-current-song{display:flex;align-items:center;gap:8px;min-width:0}.player-current-song-clickable{display:flex;align-items:center;gap:12px;min-width:0;cursor:pointer}.player-cover{width:48px;height:48px;border-radius:12px;flex-shrink:0;box-shadow:0 10px 28px #00000038}.player-cover-empty{background:var(--bg-elevated);display:flex;align-items:center;justify-content:center}.player-song-info{min-width:0}.player-song-title{font-size:14px;font-weight:500;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.player-song-artist{font-size:12px;color:var(--text-secondary);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.player-muted{color:var(--text-subdued)}.player-center{display:flex;flex-direction:column;align-items:center;gap:8px;max-width:600px;margin:0 auto;width:100%}.player-controls{display:flex;align-items:center;gap:14px}.player-control-btn{display:flex;align-items:center;justify-content:center;color:var(--text-secondary);width:30px;height:30px;border-radius:50%;transition:color .2s,background .2s,transform .2s;position:relative}.player-control-btn:hover{color:var(--text-primary);background:var(--bg-highlight);transform:translateY(-1px)}.player-control-btn.active{color:var(--accent)}.player-play-btn{width:42px;height:42px;border-radius:50%;background:linear-gradient(135deg,var(--accent),#9df7dc);color:#071016;display:flex;align-items:center;justify-content:center;transition:transform .15s,background .15s}.player-play-btn:hover{transform:scale(1.05);background:var(--accent-hover);box-shadow:var(--glow)}.player-progress{display:flex;align-items:center;gap:8px;width:100%}.player-time{font-size:11px;color:var(--text-secondary);min-width:40px;text-align:center;font-variant-numeric:tabular-nums}.progress-bar{flex:1;height:16px;display:flex;align-items:center;cursor:pointer;position:relative}.progress-track{width:100%;height:5px;background:#ffffff1f;border-radius:999px;position:relative;overflow:visible}.progress-fill{height:100%;background:linear-gradient(90deg,var(--accent),#9df7dc);border-radius:999px;position:relative;transition:background .1s}.progress-bar:hover .progress-fill{background:linear-gradient(90deg,var(--accent),var(--accent-hover))}.progress-thumb{position:absolute;top:50%;width:12px;height:12px;background:var(--accent-hover);border-radius:50%;transform:translate(-50%,-50%) scale(0);transition:transform .1s;pointer-events:none}.progress-bar:hover .progress-thumb{transform:translate(-50%,-50%) scale(1)}.player-right{display:flex;align-items:center;justify-content:flex-end;gap:8px;padding-right:8px}.volume-icon{color:var(--text-secondary);flex-shrink:0}.volume-bar{width:100px;height:16px;display:flex;align-items:center;cursor:pointer}.volume-bar .progress-track{height:4px}.volume-bar .progress-fill{background:var(--text-primary)}.volume-bar:hover .progress-fill{background:var(--accent)}.volume-bar:hover .progress-thumb{transform:translate(-50%,-50%) scale(1)}.home-empty{display:flex;justify-content:center;padding:80px 0}.empty-state{text-align:center;max-width:400px}.empty-icon{color:var(--text-subdued);margin-bottom:24px;opacity:.5}.empty-title{font-size:28px;font-weight:700;margin-bottom:12px}.empty-desc{font-size:16px;color:var(--text-secondary);line-height:1.6}.history-view{padding-top:8px}.history-group{margin-bottom:32px}.history-group-title{font-size:20px;font-weight:700;margin-bottom:12px;color:var(--text-primary)}.library-empty{text-align:center;padding:64px 0;color:var(--text-secondary);font-size:15px}.create-playlist-btn{display:flex;align-items:center;gap:12px;padding:12px 20px;border-radius:8px;background:var(--bg-card);color:var(--text-primary);font-size:15px;font-weight:600;margin-bottom:16px;transition:background .2s;width:100%}.create-playlist-btn:hover{background:var(--bg-card-hover)}.create-playlist-input{display:flex;gap:8px;align-items:center;margin-bottom:16px;padding:8px 12px;background:var(--bg-card);border-radius:8px}.create-playlist-input input{flex:1;padding:8px 12px;border-radius:4px;border:1px solid var(--border-color);background:var(--bg-elevated);color:var(--text-primary);font-size:14px;outline:none}.create-playlist-input input:focus{border-color:var(--accent)}.create-confirm{padding:8px 16px;border-radius:4px;background:var(--accent);color:#000;font-weight:600;font-size:13px}.create-cancel{padding:8px 16px;border-radius:4px;color:var(--text-secondary);font-size:13px}.create-cancel:hover{color:var(--text-primary)}.playlist-rename{display:flex;gap:8px;align-items:center;margin-bottom:16px}.playlist-rename input{padding:8px 12px;border-radius:4px;border:1px solid var(--border-color);background:#0000004d;color:#fff;font-size:24px;font-weight:700;outline:none;min-width:200px}.playlist-rename input:focus{border-color:var(--accent)}.playlist-rename button{padding:8px 16px;border-radius:4px;font-weight:600;font-size:13px}.playlist-rename button:first-of-type{background:var(--accent);color:#000}.playlist-rename button:last-of-type{color:var(--text-secondary)}.playlist-action-btn{display:flex;align-items:center;gap:8px;padding:8px 16px;border-radius:4px;color:var(--text-secondary);font-size:14px;font-weight:500;transition:color .2s,background .2s}.playlist-action-btn:hover{color:var(--text-primary);background:#ffffff0d}.playlist-action-btn.danger:hover{color:#e74c3c}.add-songs-panel{margin:0 32px 16px;padding:16px;background:var(--bg-card);border-radius:8px}.add-songs-panel h3{font-size:16px;font-weight:700;margin-bottom:12px}.add-songs-list{max-height:300px;overflow-y:auto}.add-songs-list .track-row{padding:6px 8px;border-radius:4px}.add-songs-list .track-col-num{color:var(--accent)}.track-list-empty{text-align:center;padding:32px 0;color:var(--text-secondary);font-size:14px}.track-col-action{text-align:center;min-width:40px}.track-list-header .track-col-action,.track-row .track-col-action{display:inline-flex;align-items:center;justify-content:center;gap:6px}.row-action-btn{display:inline-flex;align-items:center;justify-content:center;padding:4px;border-radius:4px;color:var(--text-secondary);opacity:0;transition:opacity .2s,color .2s}.track-row:hover .row-action-btn{opacity:1}.row-action-btn:hover{color:#e74c3c}.search-hint{margin-top:16px;font-size:16px;color:var(--text-secondary)}.hot-search-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:16px}.hot-search-tag{display:flex;align-items:center;gap:6px;padding:8px 16px;border:none;border-radius:20px;background:var(--card-bg);color:var(--text-primary);font-size:14px;cursor:pointer;transition:background .2s,transform .2s}.hot-search-tag:hover{background:var(--hover-bg);transform:scale(1.03)}.hot-search-rank{font-size:12px;font-weight:700;color:var(--text-secondary);min-width:16px}.hot-search-tag:nth-child(-n+3) .hot-search-rank{color:#ec4141}.hot-search-content{font-size:11px;color:var(--text-secondary);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;max-width:120px}.modal-overlay{position:fixed;top:0;right:0;bottom:0;left:0;background:#0009;display:flex;align-items:center;justify-content:center;z-index:1000;padding:24px;animation:fadeIn .15s ease}.modal-content{background:var(--bg-elevated);border-radius:12px;width:100%;max-width:520px;max-height:90vh;overflow-y:auto;box-shadow:0 16px 48px #00000080;animation:slideUp .2s ease}.modal-header{display:flex;align-items:center;justify-content:space-between;padding:20px 24px 0}.modal-title{font-size:22px;font-weight:700}.modal-close{width:32px;height:32px;border-radius:50%;display:flex;align-items:center;justify-content:center;color:var(--text-secondary);transition:background .2s,color .2s}.modal-close:hover{background:var(--bg-card-hover);color:var(--text-primary)}.modal-form{padding:20px 24px 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