:root{--bg: #efebe5;--sidebar-bg: #f4f2ee;--surface: #ffffff;--surface-2: #f5f3ef;--surface-hover: #efece7;--text: #1f1d1a;--text-2: #5f5b55;--text-muted: #8f8a83;--border: #e8e4de;--border-strong: #d4cfc7;--accent: #d2552a;--accent-hover: #b8461f;--accent-soft: rgba(216, 90, 48, .11);--accent-soft-2: rgba(216, 90, 48, .2);--accent-text: #a8401b;--on-accent: #fff;--danger: #c93a2e;--danger-soft: rgba(201, 58, 46, .1);--success: #1c7c46;--success-soft: rgba(34, 160, 90, .13);--ok: #2e9d5a;--warn: #e8862a;--tone-image-bg: #dcf2e8;--tone-image-fg: #16795a;--tone-video-bg: #e6e5fb;--tone-video-fg: #4b45b0;--tone-audio-bg: #fbe6ef;--tone-audio-fg: #a33a62;--tone-doc-bg: #e3eefa;--tone-doc-fg: #1f5f9e;--tone-archive-bg: #f8ecd4;--tone-archive-fg: #8a5a0e;--shadow-pop: 0 12px 32px rgba(40, 25, 10, .14), 0 2px 6px rgba(40, 25, 10, .08);--shadow-card: 0 1px 2px rgba(40, 25, 10, .05);--shadow-panel: 0 1px 3px rgba(40, 25, 10, .04), 0 8px 24px rgba(40, 25, 10, .04);--radius: 10px;color-scheme:light}[data-theme=dark]{--bg: #121214;--sidebar-bg: #1f1f23;--surface: #232327;--surface-2: #2a2a2f;--surface-hover: #303036;--text: #ecebe8;--text-2: #b3b0aa;--text-muted: #85827d;--border: #33333a;--border-strong: #45454d;--accent: #e0632f;--accent-hover: #ec7643;--accent-soft: rgba(232, 99, 47, .16);--accent-soft-2: rgba(232, 99, 47, .26);--accent-text: #f29b72;--danger: #f07a70;--danger-soft: rgba(240, 122, 112, .14);--success: #5bd08a;--success-soft: rgba(91, 208, 138, .14);--ok: #4cc47c;--warn: #f09a3e;--tone-image-bg: rgba(29, 158, 117, .2);--tone-image-fg: #6fd6b0;--tone-video-bg: rgba(127, 119, 221, .22);--tone-video-fg: #b4aef2;--tone-audio-bg: rgba(212, 83, 126, .2);--tone-audio-fg: #f0a0bf;--tone-doc-bg: rgba(55, 138, 221, .2);--tone-doc-fg: #8fbdee;--tone-archive-bg: rgba(239, 159, 39, .18);--tone-archive-fg: #f3c070;--shadow-pop: 0 12px 32px rgba(0, 0, 0, .5), 0 2px 6px rgba(0, 0, 0, .3);--shadow-card: none;--shadow-panel: 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300px;gap:16px;padding:16px;min-height:100vh;align-items:start}.panel{background:var(--surface);border:1px solid var(--border);border-radius:22px;box-shadow:var(--shadow-panel)}.left-panel,.right-panel{position:sticky;top:16px;height:calc(100vh - 32px);overflow-y:auto;display:flex;flex-direction:column}.left-panel{padding:14px 12px;gap:2px}.account{width:100%;gap:12px;padding:8px 10px;border:none;border-radius:14px;background:transparent;text-align:left}.account:hover:not(:disabled){background:var(--surface-hover)}.account .avatar{flex:0 0 auto;width:42px;height:42px;font-size:17px}.account-text{flex:1;min-width:0;display:flex;flex-direction:column}.account-text b{font-weight:600;font-size:15px;overflow:hidden;text-overflow:ellipsis}.account-text small{font-size:12px;color:var(--text-muted)}.account-chevron{color:var(--text-muted);flex:0 0 auto}.sections{display:flex;flex-direction:column;gap:2px;margin-top:12px;padding-top:14px;border-top:1px solid var(--border)}.nav-item{width:100%;border:none;background:transparent;color:var(--text-2);padding:11px 14px;border-radius:12px;gap:13px;font-size:15px;text-align:left}.nav-item:hover:not(:disabled){background:var(--surface-hover);color:var(--text)}.nav-item.active,.nav-item.active:hover{background:var(--accent-soft);color:var(--accent-text);font-weight:600}.nav-item.soon{color:var(--text-muted)}.soon-badge{margin-left:auto;font-size:11px;font-weight:500;padding:2px 7px;border-radius:6px;background:var(--surface-2);color:var(--text-muted)}.left-foot{margin-top:auto;display:flex;align-items:center;gap:10px;padding:12px 6px 2px 10px;border-top:1px solid 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.preview{height:128px;display:flex;align-items:center;justify-content:center}.file-card .preview img{width:100%;height:100%;object-fit:cover}.file-card .meta{padding:9px 12px 11px;display:flex;flex-direction:column;gap:1px}.file-card .name{font-weight:500;font-size:13px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.file-card .sub{font-size:12px;color:var(--text-muted);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.file-card .more{position:absolute;top:6px;right:6px;padding:5px;background:var(--surface);box-shadow:var(--shadow-card);opacity:0;transition:opacity .12s}.file-card:hover .more,.file-card .more:focus-visible{opacity:1}.file-card .more:hover:not(:disabled){background:var(--surface);color:var(--accent-text)}.empty{display:flex;flex-direction:column;align-items:center;gap:10px;padding:72px 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small{font-size:12px;color:var(--text-muted)}.type-size{color:var(--accent-text);font-weight:600;font-size:13px;white-space:nowrap}.type-arrow{color:var(--text-muted)}.cloud-foot{margin-top:auto;padding-top:14px;font-size:12px;line-height:1.5;color:var(--text-muted);text-align:center}.bar{height:6px;background:var(--surface-hover);border-radius:3px;overflow:hidden}.bar-fill{display:block;height:100%;background:var(--accent);border-radius:3px}.bar-fill.lvl-ok{background:var(--ok)}.bar-fill.lvl-low{background:var(--warn)}.bar-fill.lvl-critical{background:var(--danger)}.storage-line{color:var(--text-muted)}.popover-layer{position:fixed;inset:0;z-index:95}.popover{position:fixed;min-width:220px;max-width:300px;padding:6px;background:var(--surface);border:1px solid var(--border);border-radius:12px;box-shadow:var(--shadow-pop);display:flex;flex-direction:column;gap:1px;animation:pop-in .1s ease-out}@keyframes pop-in{0%{opacity:0;transform:scale(.97)}}.sheet-overlay{position:fixed;inset:0;z-index:95;background:#00000073;display:flex;align-items:flex-end;justify-content:center}.sheet{width:100%;max-width:520px;max-height:85vh;overflow-y:auto;background:var(--surface);border-radius:18px 18px 0 0;padding:8px 8px calc(8px + env(safe-area-inset-bottom));display:flex;flex-direction:column;gap:2px;animation:sheet-in .16s ease-out}.sheet:before{content:"";align-self:center;width:36px;height:4px;border-radius:2px;background:var(--border-strong);margin:2px 0 8px}@keyframes sheet-in{0%{transform:translateY(30%);opacity:.5}}.menu-item{width:100%;border:none;background:transparent;color:var(--text);padding:8px 10px;border-radius:7px;gap:12px;text-align:left}.menu-item svg{color:var(--text-2);flex:0 0 auto}.menu-item:hover:not(:disabled){background:var(--surface-hover)}.menu-item.danger,.menu-item.danger svg{color:var(--danger)}.menu-item.danger:hover:not(:disabled){background:var(--danger-soft)}.menu-sep{height:1px;background:var(--border);margin:4px 6px}.menu-hint{margin:2px 10px 6px;font-size:12px;color:var(--text-muted);white-space:normal}.sheet .menu-item{padding:13px 14px;font-size:15px}.sheet-cancel{justify-content:center;color:var(--text-2)}.menu-title{display:flex;align-items:center;gap:10px;padding:8px 10px 10px;margin-bottom:4px;border-bottom:1px solid var(--border);min-width:0}.menu-title-text{display:flex;flex-direction:column;min-width:0}.menu-title-text b{font-weight:600;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.menu-title-text small{color:var(--text-muted);font-size:12px}.menu-storage{padding:4px 10px 10px;margin-bottom:4px;border-bottom:1px solid var(--border);display:flex;flex-direction:column;gap:6px;font-size:12.5px;color:var(--text-2)}.toasts{position:fixed;left:50%;bottom:24px;transform:translate(-50%);z-index:110;display:flex;flex-direction:column;align-items:center;gap:8px;width:max-content;max-width:calc(100vw - 32px)}.toast{display:flex;align-items:center;gap:12px;padding:11px 14px 11px 16px;border-radius:10px;background:#2b2a28;color:#f4f2ee;box-shadow:var(--shadow-pop);font-size:14px;cursor:pointer}[data-theme=dark] .toast{background:#3a3a40}.toast.error{background:var(--danger);color:#fff}[data-theme=dark] .toast.error{background:#b8352b}.upload-panel{position:fixed;right:24px;bottom:24px;z-index:105;width:360px;max-width:calc(100vw - 32px);max-height:50vh;display:flex;flex-direction:column;background:var(--surface);border:1px solid var(--border);border-radius:14px;box-shadow:var(--shadow-pop);overflow:hidden}.upload-head{padding:12px 16px;font-weight:600;border-bottom:1px solid 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