:root{--bg:#f5f6f8;--surface:#fff;--surface-2:#fafbfc;--border:#e5e7eb;--border-strong:#d6d9e0;--text:#1b1d23;--muted:#6b7280;--accent:#2563eb;--accent-weak:#eff4ff;--danger:#dc2626;--danger-weak:#fef2f2;--radius:10px;--shadow:0 1px 2px #1018280a, 0 10px 28px #10182812;color:var(--text);background:var(--bg);--lightningcss-light:initial;--lightningcss-dark: ;color-scheme:light;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;font-family:system-ui,-apple-system,Segoe UI,PingFang SC,Microsoft YaHei,sans-serif;font-size:14px;line-height:1.5}*{box-sizing:border-box}html,body,#root{height:100%}body{background:var(--bg);color:var(--text);margin:0}button{font:inherit;color:inherit;cursor:pointer;background:0 0;border:none;padding:0}input{font:inherit;color:inherit}a{color:inherit;text-decoration:none}::selection{background:#dbeafe}::-webkit-scrollbar{width:10px;height:10px}::-webkit-scrollbar-thumb{background:#d8dbe1 padding-box content-box;border:3px solid #0000;border-radius:6px}::-webkit-scrollbar-thumb:hover{background:#c2c6cf padding-box content-box}.btn{border:1px solid var(--border-strong);background:var(--surface);white-space:nowrap;border-radius:8px;justify-content:center;align-items:center;gap:6px;height:34px;padding:0 14px;font-size:13px;font-weight:500;transition:background .12s,border-color .12s,color .12s;display:inline-flex}.btn:hover{background:var(--surface-2)}.btn.primary{background:var(--accent);border-color:var(--accent);color:#fff}.btn.primary:hover{background:#1d4ed8;border-color:#1d4ed8}.btn:disabled{opacity:.55;cursor:default}.btn.block{width:100%}.icon-btn{width:28px;height:28px;color:var(--muted);border-radius:7px;justify-content:center;align-items:center;transition:background .12s,color .12s;display:inline-flex}.icon-btn:hover{color:var(--text);background:#0f172a0f}.icon-btn.danger:hover{background:var(--danger-weak);color:var(--danger)}.input{border:1px solid var(--border-strong);background:var(--surface);border-radius:8px;outline:none;width:100%;height:34px;padding:0 10px;transition:border-color .12s,box-shadow .12s}.input:focus{border-color:var(--accent);box-shadow:0 0 0 3px #2563eb1f}.inline-form{padding:2px 8px 6px}.inline-form .input{height:30px;font-size:13px}.inline-form.grow{flex:1;min-width:0;padding:0}.muted{color:var(--muted);margin:2px 0 0;font-size:12.5px}.splash{height:100%;color:var(--muted);justify-content:center;align-items:center;display:flex}.login-page{justify-content:center;align-items:center;height:100%;padding:24px;display:flex}.login-card{background:var(--surface);border:1px solid var(--border);width:340px;box-shadow:var(--shadow);border-radius:16px;flex-direction:column;gap:14px;padding:28px;display:flex}.login-brand{align-items:center;gap:8px;font-size:16px;font-weight:600;display:flex}.login-card .hint{color:var(--muted);margin:-8px 0 2px;font-size:13px}.field{flex-direction:column;gap:6px;display:flex}.field label{color:var(--muted);font-size:12.5px}.form-error{background:var(--danger-weak);color:var(--danger);border-radius:8px;padding:8px 10px;font-size:12.5px}.app{height:100%;display:flex;overflow:hidden}.sidebar{background:var(--surface);border-right:1px solid var(--border);flex-direction:column;flex:none;width:264px;display:flex}.brand{letter-spacing:.2px;align-items:center;gap:8px;padding:18px 16px 14px;font-size:15px;font-weight:600;display:flex}.brand-dot{background:linear-gradient(135deg,#3b82f6,#6366f1);border-radius:6px;width:20px;height:20px;box-shadow:inset 0 0 0 1px #ffffff40}.sidebar-section{flex-direction:column;flex:1;min-height:0;padding:0 8px;display:flex}.sidebar-title{color:var(--muted);letter-spacing:.4px;justify-content:space-between;align-items:center;padding:6px 8px;font-size:12px;display:flex}.group-list{flex:1;min-height:0;margin:2px 0 0;padding:0 0 12px;list-style:none;overflow-y:auto}.group{border-radius:8px;align-items:center;gap:2px;padding-right:4px;display:flex}.group:hover{background:var(--surface-2)}.group.active{background:var(--accent-weak)}.group-main{text-align:left;min-width:0;color:var(--text);border-radius:8px;flex:1;align-items:center;gap:8px;padding:8px;display:flex}.group.active .group-main{color:var(--accent);font-weight:500}.group-name{text-overflow:ellipsis;white-space:nowrap;flex:1;min-width:0;overflow:hidden}.group-count{color:var(--muted);font-variant-numeric:tabular-nums;flex:none;font-size:12px}.group-actions{opacity:0;flex:none;gap:2px;transition:opacity .12s;display:flex}.group:hover .group-actions,.group.active .group-actions{opacity:1}.group-empty{color:var(--muted);padding:10px 8px;font-size:13px}.sidebar-footer{border-top:1px solid var(--border);justify-content:space-between;align-items:center;gap:8px;padding:10px 14px;display:flex}.sidebar-footer .user{color:var(--muted);text-overflow:ellipsis;white-space:nowrap;font-size:12.5px;overflow:hidden}.main{flex-direction:column;flex:1;min-width:0;display:flex;position:relative;overflow:hidden}.main-header{background:var(--surface);border-bottom:1px solid var(--border);justify-content:space-between;align-items:flex-end;gap:16px;padding:22px 28px 16px;display:flex}.main-header h1{letter-spacing:-.2px;margin:0;font-size:20px;font-weight:600}.main-body{flex:1;padding:20px 28px 40px;overflow-y:auto}.empty{min-height:260px;color:var(--muted);text-align:center;flex-direction:column;justify-content:center;align-items:center;gap:6px;display:flex}.empty.big{height:100%}.empty .empty-title{color:var(--text);font-size:15px;font-weight:500}.empty p{margin:0;font-size:13px}.drop-overlay{border:2px dashed var(--accent);color:var(--accent);pointer-events:none;z-index:20;background:#2563eb0f;border-radius:14px;justify-content:center;align-items:center;font-size:15px;font-weight:500;display:flex;position:absolute;inset:12px}.table-wrap{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);overflow:hidden}.file-table{border-collapse:collapse;table-layout:fixed;width:100%}.file-table th{background:var(--surface-2);border-bottom:1px solid var(--border);color:var(--muted);text-align:left;padding:10px 16px;font-size:12px;font-weight:500}.file-table td{vertical-align:middle;border-bottom:1px solid #f1f2f4;padding:9px 16px}.file-table tbody tr:last-child td{border-bottom:none}.file-table tbody tr:hover{background:#fcfcfd}.col-size{width:96px}.col-time{width:152px}.col-actions{width:148px}.muted-cell{color:var(--muted);font-variant-numeric:tabular-nums;white-space:nowrap;font-size:12.5px}.file-cell{align-items:center;gap:10px;min-width:0;display:flex}.file-badge{color:#64748b;letter-spacing:.2px;text-transform:uppercase;background:#f1f3f6;border-radius:8px;flex:none;justify-content:center;align-items:center;width:34px;height:34px;font-size:9.5px;font-weight:700;display:flex}.file-badge.image{color:#059669;background:#ecfdf5}.file-badge.pdf{color:#dc2626;background:#fef2f2}.file-badge.text{color:#2563eb;background:#eff6ff}.file-badge.video{color:#7c3aed;background:#f5f3ff}.file-badge.audio{color:#ea580c;background:#fff7ed}.file-badge.archive{color:#ca8a04;background:#fefce8}.file-name{text-align:left;text-overflow:ellipsis;white-space:nowrap;min-width:0;max-width:100%;font-size:13.5px;display:block;overflow:hidden}.file-name:hover{color:var(--accent);text-underline-offset:2px;text-decoration:underline}.row-actions{justify-content:flex-end;gap:2px;display:flex}.upload-panel{z-index:40;background:var(--surface);border:1px solid var(--border);width:320px;max-height:42vh;box-shadow:var(--shadow);border-radius:12px;flex-direction:column;gap:10px;padding:12px;display:flex;position:fixed;bottom:20px;right:20px;overflow-y:auto}.upload-panel-title{color:var(--muted);letter-spacing:.3px;font-size:12px}.upload-item{flex-direction:column;gap:5px;display:flex}.upload-head{justify-content:space-between;gap:8px;font-size:12.5px;display:flex}.upload-name{text-overflow:ellipsis;white-space:nowrap;overflow:hidden}.upload-status{color:var(--muted);font-variant-numeric:tabular-nums;flex:none}.upload-bar{background:#eef0f3;border-radius:2px;height:4px;overflow:hidden}.upload-bar>span{background:var(--accent);width:0;height:100%;transition:width .15s ease-out;display:block}.upload-item.done .upload-bar>span{background:#16a34a}.upload-item.error .upload-bar>span{background:var(--danger)}.upload-error{color:var(--danger);font-size:12px}.toast{z-index:60;color:#fff;box-shadow:var(--shadow);background:#111827;border-radius:999px;padding:9px 16px;font-size:13px;position:fixed;bottom:26px;left:50%;transform:translate(-50%)}.toast.error{background:#b91c1c}.modal-backdrop{z-index:50;background:#0f172a7a;justify-content:center;align-items:center;padding:32px;display:flex;position:fixed;inset:0}.modal{background:var(--surface);border-radius:14px;flex-direction:column;width:min(960px,100%);max-height:100%;display:flex;overflow:hidden;box-shadow:0 24px 64px #0f172a47}.modal-header{border-bottom:1px solid var(--border);align-items:center;gap:10px;padding:10px 12px 10px 16px;display:flex}.modal-title{text-overflow:ellipsis;white-space:nowrap;flex:1;min-width:0;font-weight:500;overflow:hidden}.modal-meta{color:var(--muted);flex:none;font-size:12px}.modal-body{background:#f3f4f6;flex-direction:column;flex:1;justify-content:center;align-items:center;min-height:0;max-height:76vh;display:flex;overflow:auto}.modal-body img,.modal-body video{max-width:100%;max-height:76vh;display:block}.modal-body audio{width:min(520px,80%);margin:48px 0}.modal-body iframe{background:#fff;border:0;width:100%;height:76vh}.modal-fallback{color:var(--muted);text-align:center;padding:48px 16px;font-size:13px}.modal-fallback a{color:var(--accent);text-decoration:underline}.preview-tip{color:#92400e;background:#fffbeb;border-bottom:1px solid #fde68a;align-self:stretch;padding:8px 16px;font-size:12px}.preview-text{color:#e5e7eb;white-space:pre-wrap;word-break:break-word;background:#0f1115;align-self:stretch;margin:0;padding:16px;font-family:ui-monospace,Consolas,Courier New,monospace;font-size:12.5px;line-height:1.65}@media (hover:none){.group-actions{opacity:1}}@media (width<=860px){.app{flex-direction:column}.sidebar{border-right:none;border-bottom:1px solid var(--border);width:100%;max-height:42vh}.main-header{padding:14px 16px 12px}.main-body{padding:14px 16px 32px}.col-time{display:none}.col-actions{width:120px}.modal-backdrop{padding:12px}}