:root{color-scheme:light;--font-display: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Segoe UI", sans-serif;--font-body: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Segoe UI", system-ui, sans-serif;--bg: #F8F9FC;--bg-warm: #EEF0F6;--surface: #FFFFFF;--surface-dim: #F4F5FA;--ink: #0F172A;--ink-soft: #334155;--muted: #64748B;--muted-soft: #94A3B8;--line: #E2E8F0;--line-soft: #F1F5F9;--accent: #6366F1;--accent-soft: #EEF2FF;--accent-glow: rgba(99, 102, 241, .15);--accent-hover: #4F46E5;--success: #10B981;--success-soft: #ECFDF5;--danger: #EF4444;--danger-soft: #FEF2F2;--radius-sm: 8px;--radius-md: 12px;--radius-lg: 18px;--radius-xl: 24px;--radius-pill: 999px;--shadow-xs: 0 1px 2px rgba(15, 23, 42, .04);--shadow-sm: 0 2px 8px rgba(15, 23, 42, .06);--shadow-md: 0 8px 24px rgba(15, 23, 42, .08);--shadow-lg: 0 20px 48px rgba(15, 23, 42, .1);--shadow-xl: 0 32px 64px rgba(15, 23, 42, .14)}[data-theme=dark]{color-scheme:dark;--bg: 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h2{font-family:var(--font-display);font-size:1.25rem;font-weight:700;color:var(--ink);margin-bottom:6px}.auth-card-header p{color:var(--muted);font-size:.9rem}.field{display:grid;gap:8px;margin-bottom:20px}.field span{font-size:.82rem;font-weight:600;color:var(--ink-soft);letter-spacing:.02em}.field input{width:100%;padding:14px 16px;border-radius:var(--radius-md);border:1.5px solid var(--line);background:var(--surface-dim);font-size:.95rem;transition:border-color .2s,box-shadow .2s,background .2s}.field input:focus{border-color:var(--accent);box-shadow:0 0 0 3px var(--accent-glow);background:var(--surface)}.field input::placeholder{color:var(--muted-soft)}.primary-action{width:100%;padding:15px 24px;border-radius:var(--radius-pill);background:var(--accent);color:#fff;font-weight:600;font-size:.95rem;letter-spacing:.02em;transition:transform .15s,box-shadow .15s,background .15s;box-shadow:0 4px 16px 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var(--accent-glow)}.user-pill-avatar{display:flex;align-items:center;justify-content:center;width:30px;height:30px;border-radius:50%;background:linear-gradient(135deg,var(--accent),#4F46E5);color:#fff;font-size:.85rem;font-weight:700}.user-pill-name{font-size:.88rem;font-weight:600;color:var(--ink);max-width:120px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.user-pill-chevron{width:16px;height:16px;color:var(--muted);transition:transform .2s ease}.user-pill-chevron.open{transform:rotate(180deg)}.user-pill-menu{position:absolute;top:calc(100% + 8px);right:0;min-width:180px;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-lg);box-shadow:0 12px 40px #0000002e;padding:6px;z-index:100;animation:menuFadeIn .15s ease}@keyframes menuFadeIn{0%{opacity:0;transform:translateY(-6px)}to{opacity:1;transform:translateY(0)}}.user-pill-menu-header{display:flex;flex-direction:column;gap:2px;padding:10px 12px;border-bottom:1px solid 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ease}.mode-option:hover:not(:disabled){border-color:var(--accent);background:var(--surface)}.mode-option:active:not(:disabled){transform:scale(.99)}.mode-option-active{border-color:var(--accent);background:#6366f114}.mode-option:disabled{opacity:.6;cursor:wait}.mode-option-title{font-size:.95rem;font-weight:700;margin-bottom:4px}.mode-option-desc{font-size:.78rem;color:var(--muted);line-height:1.35}.mode-option-badge{position:absolute;top:14px;right:14px;font-size:.7rem;font-weight:700;padding:3px 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ease}.settings-remove-bg-btn:hover:not(:disabled){background:var(--danger-soft)}.settings-remove-bg-btn:disabled{opacity:.6;cursor:not-allowed}.settings-track-list{display:flex;flex-direction:column;gap:8px}.settings-track-item{display:flex;align-items:center;gap:10px;padding:10px 12px;border-radius:var(--radius-md);background:var(--surface);border:1px solid var(--line)}.settings-track-number{width:22px;height:22px;display:flex;align-items:center;justify-content:center;border-radius:50%;background:var(--accent-soft);color:var(--accent);font-size:.75rem;font-weight:700;flex-shrink:0}.settings-track-title{flex:1;min-width:0;font-size:.9rem;color:var(--ink);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.settings-track-remove{width:26px;height:26px;display:flex;align-items:center;justify-content:center;border-radius:var(--radius-sm);border:none;background:var(--danger-soft);color:var(--danger);font-size:1rem;line-height:1;cursor:pointer;flex-shrink:0;transition:background .2s 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ease}.user-card:hover{border-color:var(--muted-soft);box-shadow:var(--shadow-xs)}.user-card-avatar{display:flex;align-items:center;justify-content:center;width:40px;height:40px;border-radius:50%;background:linear-gradient(135deg,var(--accent) 0%,#818CF8 100%);color:#fff;font-size:1rem;font-weight:700;flex-shrink:0}.user-card-info{flex:1;display:flex;flex-direction:column;gap:2px;min-width:0}.user-card-name-line{display:flex;align-items:center;gap:8px;flex-wrap:wrap}.user-card-name-line strong{font-size:.9rem;color:var(--ink)}.user-role-badge{display:inline-flex;padding:2px 8px;border-radius:var(--radius-pill);font-size:.68rem;font-weight:600}.user-role-badge.role-admin{background:var(--accent-soft);color:var(--accent)}.user-role-badge.role-user{background:var(--surface-dim);color:var(--muted);border:1px solid var(--line)}.user-card-created{font-size:.72rem;color:var(--muted)}.user-card-actions{display:flex;gap:4px;flex-shrink:0}.user-card-icon-btn{display:flex;align-items:center;justify-content:center;width:34px;height:34px;border:none;border-radius:var(--radius-md);background:var(--surface-dim);color:var(--muted);cursor:pointer;transition:background .2s ease,color .2s ease}.user-card-icon-btn:hover:not(:disabled){background:var(--accent-soft);color:var(--accent)}.user-card-icon-btn:disabled{opacity:.35;cursor:not-allowed}.user-card-delete-btn:hover:not(:disabled){background:#ef44441a;color:var(--danger)}.user-card-icon-btn svg{width:17px;height:17px}@media (min-width: 641px){.settings-overlay{align-items:center;padding:20px}.settings-modal{width:min(480px,100%);max-height:min(80vh,640px);max-height:min(80dvh,640px);border-radius:20px;box-shadow:0 24px 64px #00000040,0 4px 12px #0000001a;animation:settingsFadeInScale .25s cubic-bezier(.4,0,.2,1)}.settings-grab-handle{display:none}.settings-header{padding:20px 24px 16px}.settings-title{font-size:1.2rem}}@media (prefers-reduced-motion: reduce){.settings-modal,.settings-overlay,.auth-overlay{animation:none}}@media (max-width: 960px){.results-navbar-inner{flex-wrap:wrap}.results-navbar-search{max-width:none;order:3;flex-basis:100%}}@media (max-width: 640px){.home-center{padding:80px 16px 32px}.home-brand h1{font-size:clamp(1.6rem,6vw,2.5rem)}.home-search-input{height:48px;font-size:.95rem;border-radius:24px;padding-left:46px}.home-search .search-icon-svg{left:16px;width:18px;height:18px}.recent-grid{grid-template-columns:repeat(auto-fill,minmax(160px,1fr));gap:8px}.file-card{padding:12px}.file-card-name{font-size:.84rem}.results-navbar{padding:10px 14px}.results-list{padding:16px 14px 32px}.result-item{padding:12px 14px}.result-item-name{font-size:.95rem}.ghost-button{padding:8px 12px;font-size:.82rem}.primary-action.small{padding:8px 14px;font-size:.82rem}.first-login-banner{flex-direction:column;align-items:flex-start}.auth-brand{margin-bottom:20px}.auth-logo{width:56px;height:56px;margin-bottom:16px}.auth-title{font-size:1.7rem;margin-bottom:8px}.auth-card{padding:22px 20px}.auth-card-header{text-align:center;margin-bottom:20px}.auth-card-header h2{font-size:1.2rem}.field input,.primary-action{padding:14px;font-size:1rem}.home-topbar{padding:10px 14px}.recent-header{flex-direction:column;align-items:flex-start;gap:12px}.recent-header-actions{width:100%;justify-content:flex-end}.user-pill-name{max-width:80px;font-size:.82rem}.user-pill-menu{right:0;left:auto;min-width:170px}.sort-toggle{width:100%;justify-content:center}.results-header{flex-direction:column;align-items:stretch}}@media (max-width: 380px){.home-search-input{height:44px;font-size:.9rem}.recent-grid{grid-template-columns:1fr}.results-navbar-inner{gap:8px}}::-webkit-scrollbar{width:6px;height:6px}::-webkit-scrollbar-track{background:transparent}::-webkit-scrollbar-thumb{background:var(--muted-soft);border-radius:3px}::-webkit-scrollbar-thumb:hover{background:var(--muted)}.music-player{position:fixed;right:16px;bottom:16px;z-index:100;width:220px;border-radius:var(--radius-lg);background:var(--surface);border:1px solid var(--line);box-shadow:0 10px 30px #0000001f;overflow:hidden;transition:width .2s ease,box-shadow .2s ease}.music-player-expanded{width:260px;box-shadow:0 14px 40px #00000029}.music-player-header{display:flex;align-items:center;justify-content:space-between;padding:10px 12px;background:var(--surface-dim);border-bottom:1px solid var(--line)}.music-player-title{font-size:.8rem;font-weight:700;color:var(--muted);text-transform:uppercase;letter-spacing:.06em}.music-player-toggle{width:22px;height:22px;display:flex;align-items:center;justify-content:center;border-radius:var(--radius-sm);border:none;background:var(--surface);color:var(--ink-soft);font-size:1rem;line-height:1;cursor:pointer;transition:background .2s ease,color .2s ease}.music-player-toggle:hover{background:var(--accent-soft);color:var(--accent)}.music-player-body{padding:12px;display:flex;flex-direction:column;gap:10px}.music-player-controls{display:flex;align-items:center;justify-content:center;gap:14px}.music-player-prev,.music-player-next,.music-player-repeat{width:30px;height:30px;display:flex;align-items:center;justify-content:center;border-radius:50%;border:none;background:transparent;color:var(--ink-soft);line-height:1;cursor:pointer;transition:background .2s ease,color .2s ease}.music-player-prev .music-icon-svg,.music-player-next .music-icon-svg,.music-player-repeat .music-icon-svg{width:15px;height:15px}.music-player-prev:hover,.music-player-next:hover,.music-player-repeat:hover{background:var(--accent-soft);color:var(--accent)}.music-player-active{color:var(--accent);background:var(--accent-soft)}.music-player-play{width:40px;height:40px;display:flex;align-items:center;justify-content:center;border-radius:50%;border:none;background:var(--accent);color:#fff;line-height:1;cursor:pointer;transition:transform .15s ease,background .2s ease}.music-player-play .music-icon-svg{width:18px;height:18px}.music-player-play:hover{background:var(--accent-hover);transform:scale(1.05)}.music-player-track{font-size:.85rem;font-weight:600;color:var(--ink);text-align:center;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.music-player-volume{display:flex;align-items:center;gap:8px}.music-player-volume span{font-size:.75rem;color:var(--muted);flex-shrink:0}.music-player-volume input[type=range]{flex:1;-webkit-appearance:none;-moz-appearance:none;appearance:none;height:4px;border-radius:2px;background:var(--line);outline:none}.music-player-volume input[type=range]::-webkit-slider-thumb{-webkit-appearance:none;-moz-appearance:none;appearance:none;width:14px;height:14px;border-radius:50%;background:var(--accent);cursor:pointer}.music-player-volume input[type=range]::-moz-range-track{height:4px;border-radius:2px;background:var(--line)}.music-player-volume input[type=range]::-moz-range-thumb{width:14px;height:14px;border-radius:50%;background:var(--accent);cursor:pointer;border:none}.music-player-tracklist{display:flex;flex-direction:column;gap:4px;max-height:160px;overflow-y:auto;padding-top:6px;border-top:1px solid var(--line)}.music-player-track-item{width:100%;text-align:left;padding:8px 10px;border-radius:var(--radius-md);border:none;background:transparent;color:var(--ink-soft);font-size:.8rem;cursor:pointer;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;transition:background .2s ease,color .2s ease}.music-player-track-item:hover{background:var(--surface-dim);color:var(--ink)}.music-player-track-active{background:var(--accent-soft);color:var(--accent);font-weight:600}@media (max-width: 480px){.music-player{right:12px;bottom:12px;width:190px}.music-player-expanded{width:220px}}.home-music-bar{position:absolute;top:0;left:0;z-index:10;display:flex;align-items:center;gap:14px;padding:16px 20px;max-width:calc(100vw - 200px)}.home-music-vinyl{position:relative;width:56px;height:56px;flex-shrink:0;border-radius:50%;background:radial-gradient(circle at center,transparent 18%,rgba(255,255,255,.04) 19%,transparent 20%),radial-gradient(circle at center,transparent 28%,rgba(255,255,255,.04) 29%,transparent 30%),radial-gradient(circle at center,transparent 38%,rgba(255,255,255,.04) 39%,transparent 40%),radial-gradient(circle at center,transparent 45%,rgba(255,255,255,.05) 46%,transparent 47%),repeating-radial-gradient(circle at center,#0a0a0a,#0a0a0a,#161616,#161616 3px),#000;box-shadow:0 6px 18px #00000059,inset 0 0 0 1px #ffffff0f;overflow:hidden;transition:transform .3s ease}.home-music-vinyl.vinyl-spinning{animation:vinyl-spin 6s linear infinite}@media (prefers-reduced-motion: reduce){.home-music-vinyl.vinyl-spinning{animation:none}}@keyframes vinyl-spin{0%{transform:rotate(0)}to{transform:rotate(360deg)}}.vinyl-disc{position:absolute;top:22%;right:22%;bottom:22%;left:22%;border-radius:50%;display:flex;align-items:center;justify-content:center;overflow:hidden;background:linear-gradient(135deg,var(--accent),var(--accent-hover, #4F46E5));box-shadow:inset 0 0 0 1px #ffffff1a}.vinyl-cover{width:100%;height:100%;object-fit:cover;border-radius:50%;display:block}.vinyl-default-icon{color:#fff;font-size:1rem;font-weight:700;line-height:1}.vinyl-center-hole{position:absolute;top:50%;left:50%;width:8px;height:8px;border-radius:50%;background:var(--bg);transform:translate(-50%,-50%);box-shadow:inset 0 0 0 1px #0006;z-index:2}.home-music-info{display:flex;align-items:center;width:180px;--title-visible: 148px;flex-shrink:0;padding:6px 14px;border-radius:var(--radius-pill);background:var(--surface);border:1px solid var(--line);box-shadow:var(--shadow-sm);overflow:hidden}.home-music-title{font-size:.82rem;font-weight:600;color:var(--ink);overflow:hidden;white-space:nowrap;display:block;width:100%}.home-music-title-text{display:inline-block;padding-right:32px}.home-music-title-scroll .home-music-title-text{animation:music-title-marquee 9s linear infinite}@media (prefers-reduced-motion: reduce){.home-music-title-scroll .home-music-title-text{animation:none}}@keyframes music-title-marquee{0%{transform:translate(0)}to{transform:translate(calc(-100% + var(--title-visible, 148px)))}}.music-icon-svg{width:16px;height:16px;flex-shrink:0}.home-music-controls{display:flex;align-items:center;gap:6px;flex-shrink:0;padding:6px 10px;border-radius:var(--radius-pill);background:var(--surface);border:1px solid var(--line);box-shadow:var(--shadow-sm)}.music-control-btn{width:34px;height:34px;display:flex;align-items:center;justify-content:center;border-radius:50%;border:none;background:var(--surface-dim);color:var(--ink-soft);line-height:1;cursor:pointer;transition:background .2s ease,color .2s ease,transform .15s ease}.music-control-btn:hover{background:var(--accent-soft);color:var(--accent)}.music-control-btn:active{transform:scale(.94)}.music-control-btn:disabled{opacity:.4;cursor:not-allowed;transform:none}.music-control-btn:disabled:hover{background:var(--surface-dim);color:var(--ink-soft)}.music-play-btn{width:42px;height:42px;background:var(--accent);color:#fff;box-shadow:0 4px 14px var(--accent-glow)}.music-play-btn .music-icon-svg{width:18px;height:18px}.music-play-btn:hover{background:var(--accent-hover, #4F46E5);color:#fff}.music-play-btn:disabled{background:var(--muted-soft);box-shadow:none}.music-play-btn:disabled:hover{background:var(--muted-soft);color:#fff}.music-control-active{color:var(--accent);background:var(--accent-soft)}.music-volume-wrap{position:relative;display:flex;align-items:center}.music-volume-popover{position:absolute;top:calc(100% + 12px);right:0;z-index:30;display:flex;align-items:center;gap:8px;width:220px;padding:10px 12px;border-radius:var(--radius-pill);background:var(--surface);border:1px solid var(--line);box-shadow:var(--shadow-md, 0 8px 24px rgba(0, 0, 0, .12));animation:volume-popover-in .18s ease}@keyframes volume-popover-in{0%{opacity:0;transform:translateY(-4px)}to{opacity:1;transform:translateY(0)}}@media (prefers-reduced-motion: reduce){.music-volume-popover{animation:none}}.music-volume-mute-btn{width:28px;height:28px;display:flex;align-items:center;justify-content:center;flex-shrink:0;border-radius:50%;border:none;background:transparent;color:var(--ink-soft);cursor:pointer;transition:background .2s ease,color .2s ease}.music-volume-mute-btn:hover{background:var(--accent-soft);color:var(--accent)}.music-volume-mute-btn .music-icon-svg{width:16px;height:16px}.music-volume-value{flex-shrink:0;min-width:34px;text-align:right;font-size:.72rem;font-variant-numeric:tabular-nums;color:var(--muted)}.music-volume-popover input[type=range]{flex:1;min-width:0;-webkit-appearance:none;-moz-appearance:none;appearance:none;height:4px;border-radius:2px;background:var(--line);outline:none;cursor:pointer}.music-volume-popover input[type=range]::-webkit-slider-thumb{-webkit-appearance:none;-moz-appearance:none;appearance:none;width:14px;height:14px;border-radius:50%;background:var(--accent);cursor:pointer}.music-volume-popover input[type=range]::-moz-range-track{height:4px;border-radius:2px;background:var(--line)}.music-volume-popover input[type=range]::-moz-range-thumb{width:14px;height:14px;border-radius:50%;background:var(--accent);cursor:pointer;border:none}.music-volume-popover input[type=range]:focus-visible,.music-volume-mute-btn:focus-visible{outline:2px solid var(--accent);outline-offset:2px}@media (max-width: 720px){.home-music-bar{flex-direction:column;align-items:flex-start;gap:8px;padding:12px 14px;max-width:calc(100vw - 32px)}.home-music-info{width:100%;max-width:260px;--title-visible: 228px}}@media (max-width: 480px){.home-music-bar{padding:10px 12px}.home-music-info{display:none}}