:root{--bg-primary:#fff;--bg-sidebar:#3c3c4308;--bg-sidebar-active:#3c3c431a;--bg-player:#fafafa;--bg-hover:#0000000a;--bg-track-hover:#00000008;--bg-track-active:#3770b114;--text-primary:#000000e0;--text-secondary:#0000008f;--text-tertiary:#0000005c;--accent:#3770b1;--accent-hover:#2d5e96;--border:#0000001a;--border-input:#00000026;--radius:8px;--fs-xs:12px;--fs-sm:13px;--fs-base:14px;--fs-md:15px;--fs-lg:18px;--fs-xl:22px;--sidebar-width:260px;--player-height:84px;--font:-apple-system, BlinkMacSystemFont, "SF Pro", "Helvetica Neue", Helvetica, Arial, sans-serif;--shadow-player:0 -1px 12px #00000014;--transition:.2s ease}*{box-sizing:border-box;-webkit-tap-highlight-color:transparent;margin:0;padding:0}html,body{overscroll-behavior:none;height:var(--vh,100vh);touch-action:pan-y;width:100%;max-width:100vw;overflow:hidden}body{font-family:var(--font);font-size:var(--fs-base);color:var(--text-primary);background:var(--bg-primary);-webkit-font-smoothing:antialiased;-webkit-text-size-adjust:100%}#root{height:var(--vh,100vh);flex-direction:column;display:flex;overflow:hidden}ul{list-style:none}a{color:inherit;text-decoration:none}button{color:inherit;cursor:pointer;font:inherit;background:0 0;border:none}input,select,textarea{font:inherit;color:inherit;touch-action:manipulation;outline:none;font-size:16px!important}::-webkit-scrollbar{width:6px}::-webkit-scrollbar-track{background:0 0}::-webkit-scrollbar-thumb{background:#00000026;border-radius:3px}::-webkit-scrollbar-thumb:hover{background:#00000040}.app{width:100%;max-width:100vw;height:100%;display:flex;overflow:hidden}.main{flex-direction:column;flex:1;min-width:0;max-width:100vw;display:flex;overflow:hidden}.topbar{border-bottom:.5px solid var(--border);flex-wrap:wrap;align-items:center;gap:8px;padding:12px 16px;display:flex;overflow:hidden}.topbar-logo{font-size:var(--fs-lg);letter-spacing:-.3px;color:var(--text-primary);flex-shrink:0;order:1;align-items:center;gap:8px;font-weight:700;display:flex}.topbar-logo svg{color:var(--accent)}.topbar-nav{flex-shrink:0;order:2;gap:4px;display:flex}.nav-btn{border-radius:var(--radius);font-size:var(--fs-base);color:var(--text-secondary);transition:all var(--transition);white-space:nowrap;align-items:center;gap:6px;padding:8px 14px;display:flex}.nav-btn:hover{background:var(--bg-sidebar-active);color:var(--text-primary)}.nav-btn.active{background:var(--bg-sidebar-active);color:var(--text-primary);font-weight:600}.topbar-user{font-size:var(--fs-sm);color:var(--text-secondary);flex-shrink:0;order:3;align-items:center;gap:10px;margin-left:auto;display:flex}.logout-btn{font-size:var(--fs-sm);color:var(--text-tertiary);border:1px solid var(--border);border-radius:var(--radius);transition:all var(--transition);padding:6px 12px}.logout-btn:hover{color:var(--accent);border-color:var(--accent)}.search-bar{order:4;align-items:center;width:100%;padding:4px 0 0;display:flex}.search-input-wrap{flex:1;min-width:0;position:relative}.search-input-wrap svg{width:16px;height:16px;color:var(--text-tertiary);pointer-events:none;position:absolute;top:50%;left:10px;transform:translateY(-50%)}.search-input{border:1px solid var(--border-input);border-radius:var(--radius);background:var(--bg-primary);width:100%;height:38px;font-size:var(--fs-base);transition:border-color var(--transition);padding:6px 12px 6px 34px}.search-input::placeholder{color:var(--text-tertiary)}.search-input:focus{border-color:var(--accent)}.content{-webkit-overflow-scrolling:touch;flex:1;padding:20px 24px 24px;overflow:hidden auto}.content-title{font-size:var(--fs-xl);letter-spacing:-.3px;margin-bottom:16px;font-weight:700}.content-title--section{margin-top:32px}.tracks-grid{flex-direction:column;gap:1px;display:flex}.track-row{border-radius:var(--radius);cursor:pointer;transition:background var(--transition);align-items:center;gap:12px;padding:8px 10px;display:flex}.track-row.odd{background:var(--bg-sidebar)}.track-row:hover{background:var(--bg-sidebar-active)}.track-row.playing{background:var(--bg-track-active)}.track-cover-wrap{flex-shrink:0;width:46px;height:46px;position:relative}.track-cover{border-radius:var(--radius);object-fit:cover;background:var(--bg-sidebar);width:46px;height:46px}.track-cover-placeholder{border-radius:var(--radius);background:linear-gradient(135deg, var(--bg-sidebar-active) 0%, var(--bg-sidebar) 100%);width:46px;height:46px;color:var(--text-tertiary);justify-content:center;align-items:center;display:flex}.track-play-overlay{border-radius:var(--radius);color:#fff;opacity:0;transition:opacity var(--transition);background:#00000073;justify-content:center;align-items:center;display:flex;position:absolute;inset:0}.track-row:hover .track-play-overlay{opacity:1}.track-row.playing .track-play-overlay{opacity:1;background:#3770b18c}.track-info{flex:1;min-width:0}.track-title{font-size:var(--fs-base);white-space:nowrap;text-overflow:ellipsis;font-weight:500;overflow:hidden}.track-row.playing .track-title{color:var(--accent)}.track-artist{font-size:var(--fs-sm);color:var(--text-secondary);white-space:nowrap;text-overflow:ellipsis;margin-top:2px;overflow:hidden}.track-duration{font-size:var(--fs-sm);color:var(--text-tertiary);font-variant-numeric:tabular-nums;flex-shrink:0}.track-download{width:32px;height:32px;color:var(--text-tertiary);opacity:0;transition:opacity var(--transition), color var(--transition);border-radius:50%;flex-shrink:0;justify-content:center;align-items:center;display:flex}.track-row:hover .track-download{opacity:1}.track-download:hover{color:var(--accent)}.track-fav-btn{width:32px;height:32px;color:var(--text-tertiary);opacity:0;transition:opacity var(--transition), color var(--transition);border-radius:50%;flex-shrink:0;justify-content:center;align-items:center;display:flex}.track-row:hover .track-fav-btn{opacity:1}.track-fav-btn.active{opacity:1;color:var(--accent)}.track-fav-btn:hover{color:var(--accent)}.load-more{border:1px solid var(--border);border-radius:var(--radius);font-size:var(--fs-base);color:var(--text-secondary);transition:all var(--transition);margin:20px auto;padding:10px 32px;display:block}.load-more:hover{border-color:var(--accent);color:var(--accent)}.load-more:disabled{opacity:.5;cursor:default}.empty-state{height:60%;color:var(--text-tertiary);flex-direction:column;justify-content:center;align-items:center;gap:12px;display:flex}.empty-state svg{opacity:.3;width:56px;height:56px}.empty-state p{font-size:var(--fs-md)}.loading{color:var(--text-tertiary);font-size:var(--fs-base);justify-content:center;align-items:center;padding:48px;display:flex}.player{background:var(--bg-player);border-top:.5px solid var(--border);box-shadow:var(--shadow-player);padding:10px 24px;padding-bottom:calc(10px + env(safe-area-inset-bottom,0px));min-height:var(--player-height);z-index:100;flex-shrink:0;align-items:center;gap:12px;display:flex}.player-track{align-items:center;gap:12px;width:220px;min-width:0;display:flex}.player-cover{border-radius:var(--radius);object-fit:cover;background:var(--bg-sidebar);flex-shrink:0;width:50px;height:50px}.player-cover-placeholder{border-radius:var(--radius);width:50px;height:50px;color:var(--accent);background:linear-gradient(135deg,#3770b126 0%,#3770b10f 100%);flex-shrink:0;justify-content:center;align-items:center;display:flex}.player-track-info{min-width:0}.player-track-title{font-size:var(--fs-base);white-space:nowrap;text-overflow:ellipsis;font-weight:600;overflow:hidden}.player-track-artist{font-size:var(--fs-xs);color:var(--text-secondary);white-space:nowrap;text-overflow:ellipsis;margin-top:2px;overflow:hidden}.player-controls{flex-direction:column;flex:1;align-items:center;gap:6px;display:flex}.player-buttons{align-items:center;gap:20px;display:flex}.player-btn{color:var(--text-primary);transition:color var(--transition), transform var(--transition);justify-content:center;align-items:center;display:flex}.player-btn:hover{color:var(--accent)}.player-btn-play{background:var(--accent);color:#fff;border-radius:50%;width:40px;height:40px}.player-btn-play:hover{background:var(--accent-hover);color:#fff;transform:scale(1.05)}.player-btn svg{width:18px;height:18px}.player-btn-play svg{width:20px;height:20px}.player-btn-play:disabled{opacity:.7;cursor:wait}@keyframes spin{to{transform:rotate(360deg)}}.spin{animation:.8s linear infinite spin}.player-progress{align-items:center;gap:8px;width:100%;max-width:500px;display:flex}.player-time{font-size:var(--fs-xs);color:var(--text-secondary);font-variant-numeric:tabular-nums;text-align:center;min-width:36px}.progress-bar{background:var(--border);border-radius:3px;flex:1;height:6px;overflow:hidden}.progress-fill{background:var(--accent);border-radius:3px;height:100%;transition:width .3s linear}.volume-slider{appearance:none;cursor:pointer;background:linear-gradient(to right, var(--accent) var(--fill,0%), var(--border) var(--fill,0%));border:none;border-radius:3px;outline:none;height:6px}.volume-slider::-webkit-slider-thumb{-webkit-appearance:none;background:var(--accent);cursor:grab;opacity:0;border:none;border-radius:50%;width:14px;height:14px;transition:opacity .15s}.volume-slider:hover::-webkit-slider-thumb{opacity:1}.volume-slider:active::-webkit-slider-thumb{opacity:1}.volume-slider::-moz-range-thumb{background:var(--accent);cursor:grab;opacity:0;border:none;border-radius:50%;width:14px;height:14px;transition:opacity .15s}.volume-slider:hover::-moz-range-thumb{opacity:1}.volume-slider:active::-moz-range-thumb{opacity:1}.volume-slider::-moz-range-track{background:var(--border);border-radius:3px;height:6px}.volume-slider::-moz-range-progress{background:var(--accent);border-radius:3px;height:6px}.player-volume{flex-shrink:0;justify-content:flex-end;align-items:center;gap:8px;display:flex}.volume-btn{justify-content:center;align-items:center;padding:0;display:flex}.volume-btn svg{width:16px;height:16px;color:var(--accent);transition:color var(--transition)}.volume-btn:hover svg{color:var(--accent-hover)}.volume-slider{width:80px}.auth-page{height:var(--vh,100vh);background:var(--bg-sidebar);justify-content:center;align-items:center;padding:16px;display:flex;overflow:hidden}.auth-card{background:var(--bg-primary);border-radius:var(--radius);width:100%;max-width:380px;padding:36px 32px;box-shadow:0 4px 24px #00000014}.auth-logo{font-size:var(--fs-xl);color:var(--text-primary);justify-content:center;align-items:center;gap:8px;margin-bottom:24px;font-weight:700;display:flex}.auth-logo svg{color:var(--accent)}.auth-card h2{text-align:center;font-size:var(--fs-lg);color:var(--text-primary);margin-bottom:20px;font-weight:600}.auth-card form{flex-direction:column;gap:12px;display:flex}.auth-card input{border:1px solid var(--border-input);border-radius:var(--radius);height:44px;font-size:var(--fs-md);background:var(--bg-primary);transition:border-color var(--transition);outline:none;padding:0 14px}.auth-card input:focus{border-color:var(--accent)}.auth-card button[type=submit]{background:var(--accent);color:#fff;border-radius:var(--radius);height:44px;font-size:var(--fs-md);cursor:pointer;transition:background var(--transition);border:none;margin-top:4px;font-weight:600}.auth-card button[type=submit]:hover{background:var(--accent-hover)}.auth-card button[type=submit]:disabled{opacity:.6;cursor:default}.auth-error{color:var(--accent);font-size:var(--fs-base);text-align:center}.auth-switch{text-align:center;font-size:var(--fs-base);color:var(--text-secondary);margin-top:16px}.auth-switch span{color:var(--accent);cursor:pointer;font-weight:500}.auth-switch span:hover{text-decoration:underline}.track-card-overlay{z-index:200;animation:.3s slideUp;position:fixed;inset:0}@keyframes slideUp{0%{transform:translateY(100%)}to{transform:translateY(0)}}.track-card{background:var(--bg-primary);flex-direction:column;justify-content:center;align-items:center;gap:24px;width:100%;height:100%;padding:24px;display:flex;position:relative;overflow:hidden}.track-card-close{width:36px;height:36px;transition:background var(--transition);border-radius:50%;justify-content:center;align-items:center;display:flex;position:absolute;top:16px;left:16px}.track-card-close svg{width:20px;height:20px;color:var(--text-secondary)}.track-card-close:hover{background:var(--bg-sidebar-active)}.track-card-cover-wrap{border-radius:16px;flex-shrink:0;width:280px;height:280px;overflow:hidden;box-shadow:0 8px 32px #0000001f}.track-card-cover{object-fit:cover;background:var(--bg-sidebar);width:100%;height:100%}.track-card-cover--placeholder{color:var(--accent);background:linear-gradient(135deg,#3770b126 0%,#3770b10f 100%);justify-content:center;align-items:center;display:flex}.track-card-info{text-align:center;width:100%;max-width:320px}.track-card-title{font-size:var(--fs-xl);text-overflow:ellipsis;white-space:nowrap;font-weight:700;overflow:hidden}.track-card-artist{font-size:var(--fs-md);color:var(--text-secondary);margin-top:4px}.track-card-progress{width:100%;max-width:320px}.track-card-progress .progress-bar{height:6px}.track-card-times{font-size:var(--fs-xs);color:var(--text-tertiary);font-variant-numeric:tabular-nums;justify-content:space-between;margin-top:6px;display:flex}.track-card-buttons{align-items:center;gap:32px;display:flex}.track-card-btn{color:var(--text-primary);transition:color var(--transition), transform var(--transition);justify-content:center;align-items:center;display:flex}.track-card-btn svg{width:28px;height:28px}.track-card-btn:hover{color:var(--accent)}.track-card-btn--play{background:var(--accent);color:#fff;border-radius:50%;width:64px;height:64px}.track-card-btn--play svg{width:30px;height:30px}.track-card-btn--play:hover{background:var(--accent-hover);transform:scale(1.05)}.track-card-volume{align-items:center;gap:10px;width:100%;max-width:200px;display:flex}.track-card-volume .volume-btn svg{width:18px;height:18px;color:var(--accent)}.track-card-volume .volume-slider{flex:1}@media (width<=480px){.track-card{gap:20px;padding:20px 16px}.track-card-cover-wrap{width:220px;height:220px}.track-card-btn--play{width:56px;height:56px}.track-card-volume{display:none}}@media (width<=768px){.content{padding:16px 12px}.track-download{display:none}.track-fav-btn{opacity:1}.track-play-overlay{opacity:0}.track-row.playing .track-play-overlay{opacity:1}.player{height:auto;padding:10px 12px;padding-bottom:calc(10px + env(safe-area-inset-bottom,0px));flex-wrap:nowrap;gap:12px}.player-track{flex:1;width:auto;min-width:0}.player-controls{flex:none;gap:4px}.player-buttons{gap:16px}.player-btn-play{width:36px;height:36px}.player-progress,.player-volume{display:none}}@media (width<=480px){.topbar-logo span,.nav-btn span{display:none}.nav-btn svg{width:20px;height:20px}}