#bcv-tool{--radius:10px;--err:#ff5c6a;--warn:#ffb347}[data-theme=light] #bcv-tool{--err:#d92f3d}.bcv-panel{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);margin-bottom:20px;padding:24px}.bcv-panel-hd{flex-wrap:wrap;justify-content:space-between;align-items:center;gap:10px;margin-bottom:6px;display:flex}.bcv-panel-actions{flex-wrap:wrap;align-items:center;gap:8px;display:flex}.bcv-panel-title{color:var(--txt-strong);margin-bottom:6px;font-size:17px;font-weight:800}.bcv-panel-sub{color:var(--txt-dim);margin-bottom:14px;font-size:13px;line-height:1.6}.bcv-label{color:var(--txt-strong);margin-bottom:8px;font-size:12px;font-weight:700;display:block}.bcv-hint{color:var(--txt-dim);margin-bottom:12px;font-size:12px}.bcv-mode-tabs{background:var(--surface2);border:1px solid var(--border);border-radius:10px;flex-wrap:wrap;gap:6px;margin-bottom:16px;padding:4px;display:flex}.bcv-mode-tab{cursor:pointer;min-width:140px;color:var(--txt-dim);background:0 0;border:none;border-radius:7px;flex:1;padding:10px;font-size:13px;font-weight:700;transition:background .2s,color .2s}.bcv-mode-tab.active{background:var(--accent);color:#fff}.bcv-mode-tab:hover:not(.active){color:var(--txt-strong)}.bcv-grid-3{grid-template-columns:repeat(3,1fr);gap:14px;margin-bottom:14px;display:grid}.bcv-grid-4{grid-template-columns:repeat(4,1fr);gap:14px;margin-bottom:14px;display:grid}.bcv-field label{color:var(--txt-dim);text-transform:uppercase;letter-spacing:.4px;margin-bottom:6px;font-size:12px;font-weight:700;display:block}.bcv-field input,.bcv-field select{background:var(--surface2);border:1px solid var(--border);width:100%;color:var(--txt-strong);font-family:var(--mono);border-radius:8px;outline:none;padding:10px 12px;font-size:13px;transition:border-color .2s}.bcv-field input:focus,.bcv-field select:focus{border-color:var(--accent)}.bcv-check{color:var(--txt);cursor:pointer;align-items:center;gap:8px;font-size:13px;display:flex}.bcv-check input{width:16px;height:16px;accent-color:var(--accent);cursor:pointer}.bcv-inline-actions{flex-wrap:wrap;align-items:center;gap:14px;margin-top:10px;display:flex}.bcv-textarea{resize:vertical;background:var(--surface2);border:1px solid var(--border);width:100%;min-height:160px;color:var(--txt-strong);font-family:var(--mono);border-radius:8px;outline:none;padding:14px;font-size:13px;line-height:1.6}.bcv-textarea:focus{border-color:var(--accent)}.bcv-drop{border:1.5px dashed var(--border);background:var(--surface2);color:var(--txt-dim);text-align:center;cursor:pointer;border-radius:10px;flex-direction:column;justify-content:center;align-items:center;gap:8px;padding:34px 16px;font-size:13px;font-weight:600;transition:border-color .2s,background .2s;display:flex}.bcv-drop:hover,.bcv-drop.dragover{border-color:var(--accent);background:color-mix(in srgb, var(--accent) 6%, var(--surface2))}.bcv-drop-icon{color:var(--accent);font-size:26px}.bcv-file-list{flex-direction:column;gap:8px;margin-top:14px;display:flex}.bcv-file-item{background:var(--surface2);border:1px solid var(--border);border-radius:8px;align-items:center;gap:10px;padding:9px 14px;font-size:13px;display:flex}.bcv-file-item span.name{font-family:var(--mono);color:var(--txt-strong);word-break:break-all;flex:1}.bcv-file-item span.meta{color:var(--txt-dim);font-size:11px;font-family:var(--mono)}.bcv-file-item button{border:1px solid var(--border);width:24px;height:24px;color:var(--txt-dim);cursor:pointer;background:0 0;border-radius:6px;flex-shrink:0}.bcv-file-item button:hover{color:var(--err);border-color:var(--err)}.bcv-col-table-wrap{margin-bottom:12px;overflow-x:auto}table.bcv-col-table{border-collapse:collapse;width:100%;min-width:560px;font-size:12.5px}table.bcv-col-table th{text-align:left;color:var(--txt-dim);text-transform:uppercase;border-bottom:1px solid var(--border);padding:8px 10px;font-size:10.5px;font-weight:700}table.bcv-col-table td{border-bottom:1px solid var(--border);vertical-align:middle;padding:6px 10px}table.bcv-col-table input[type=text],table.bcv-col-table input[type=number]{background:var(--surface2);border:1px solid var(--border);width:100%;color:var(--txt);font-family:var(--mono);border-radius:6px;padding:6px 8px;font-size:12px}table.bcv-col-table input[type=checkbox]{width:16px;height:16px;accent-color:var(--accent)}.bcv-col-del{border:1px solid var(--border);width:24px;height:24px;color:var(--txt-dim);cursor:pointer;background:0 0;border-radius:6px}.bcv-col-del:hover{color:var(--err);border-color:var(--err)}.bcv-col-lock{color:var(--txt-dim);font-size:11px}.pane-btn{border:1px solid var(--border);background:var(--surface2);color:var(--txt);cursor:pointer;border-radius:7px;padding:8px 14px;font-size:12px;font-weight:700;transition:background .2s,color .2s,border-color .2s}.pane-btn:hover{background:var(--surface);color:var(--txt-strong);border-color:var(--accent)}.pane-btn.danger{color:var(--err);border-color:color-mix(in srgb, var(--err) 30%, transparent)}.pane-btn.danger:hover{background:color-mix(in srgb, var(--err) 10%, transparent);border-color:var(--err)}.bcv-table-wrap{border:1px solid var(--border);border-radius:8px;max-height:560px;overflow:auto}table.bcv-table{border-collapse:collapse;width:100%;font-family:var(--mono);white-space:nowrap;font-size:12.5px}table.bcv-table th{background:var(--surface2);color:var(--txt-dim);text-align:left;border-bottom:1px solid var(--border);padding:9px 14px;position:sticky;top:0}table.bcv-table td{border-bottom:1px solid var(--border);color:var(--txt);cursor:pointer;padding:8px 14px}table.bcv-table tr:hover td{background:var(--surface2)}table.bcv-table td.err{color:var(--err)}table.bcv-table td.warn-cell{color:var(--warn)}table.bcv-table tr.bcv-hit td{background:color-mix(in srgb, var(--warn) 12%, transparent)}.bcv-filename-input{border:1px solid var(--border);background:var(--surface2);color:var(--txt);font-family:var(--mono);border-radius:7px;min-width:160px;padding:8px 12px;font-size:12.5px}.bcv-frac-result{background:var(--surface2);border:1px solid var(--border);font-family:var(--mono);color:var(--txt-strong);word-break:break-all;border-radius:8px;margin-top:14px;padding:14px;font-size:14px}.bcv-history-list{flex-direction:column;gap:8px;max-height:380px;display:flex;overflow-y:auto}.bcv-history-empty{text-align:center;color:var(--txt-dim);background:var(--surface2);border:1px dashed var(--border);border-radius:var(--radius);padding:20px;font-size:13px}.bcv-history-item{background:var(--surface2);border:1px solid var(--border);cursor:pointer;border-radius:9px;align-items:center;gap:12px;padding:9px 14px;transition:border-color .2s;display:flex}.bcv-history-item:hover{border-color:var(--accent)}.bcv-history-text{min-width:0;font-family:var(--mono);color:var(--txt);white-space:nowrap;text-overflow:ellipsis;flex:1;font-size:12px;overflow:hidden}.bcv-history-time{color:var(--txt-dim);font-size:11px;font-family:var(--mono);flex-shrink:0}.bcv-history-del{border:1px solid var(--border);width:24px;height:24px;color:var(--txt-dim);cursor:pointer;background:0 0;border-radius:6px;flex-shrink:0;font-size:12px}.bcv-history-del:hover{color:var(--err);border-color:var(--err)}.b64-howto{counter-reset:bcv-step;flex-direction:column;gap:14px;max-width:780px;list-style:none;display:flex}.b64-howto li{color:var(--txt);padding-left:40px;font-size:14px;line-height:1.65;position:relative}.b64-howto li:before{counter-increment:bcv-step;content:counter(bcv-step);background:linear-gradient(135deg, var(--grad1), var(--grad2));color:#fff;border-radius:8px;justify-content:center;align-items:center;width:28px;height:28px;font-size:13px;font-weight:800;display:flex;position:absolute;top:0;left:0}.b64-howto strong{color:var(--txt-strong)}.b64-howto code{font-family:var(--mono);color:var(--accent)}.bcv-toast{background:var(--surface2);border:1px solid var(--border);color:var(--txt-strong);font-family:var(--mono);z-index:2000;opacity:0;pointer-events:none;border-radius:999px;padding:10px 20px;font-size:13px;font-weight:600;transition:opacity .25s,transform .25s;position:fixed;bottom:28px;left:50%;transform:translate(-50%)translateY(20px)}.bcv-toast.show{opacity:1;transform:translate(-50%)translateY(0)}@media (width<=900px){.bcv-grid-3,.bcv-grid-4{grid-template-columns:1fr 1fr}}@media (width<=650px){.bcv-panel{padding:18px}.bcv-grid-3,.bcv-grid-4{grid-template-columns:1fr}.bcv-mode-tab{min-width:110px;font-size:12px}}