:root{--bg: #eef0f3;--surface: #ffffff;--surface-2: #f4f5f7;--surface-3: #e8eaee;--border: #d8dbe1;--border-strong: #b6bcc6;--text: #1f2430;--text-muted: #667085;--text-faint: #98a2b3;--brand: #6f6fff;--brand-soft: rgba(111, 111, 255, .12);--ocr-color: #dc2626;--ocr-fill: rgba(220, 38, 38, .18);--sp-color: #dc2626;--sp-fill: rgba(220, 38, 38, .18);--select: #facc15;--success: #1dc981;--warning: #efaa17;--danger: #e8463a;--radius: 8px;--radius-card: 12px;--header-h: 48px;--status-h: 32px;--left-w: 280px;--right-w: 320px;font-family:SF Pro Text,PingFang SC,system-ui,-apple-system,Segoe UI,Roboto,sans-serif;font-size:14px;line-height:1.5;color:var(--text)}*{box-sizing:border-box;margin:0;padding:0}html,body,#root{height:100%;width:100%}body{background:var(--bg);overflow:hidden}button{font:inherit;color:inherit;cursor:pointer;border:none;background:none}input{font:inherit;color:inherit}.app{display:grid;grid-template-rows:var(--header-h) 1fr var(--status-h);grid-template-columns:var(--left-w) 1fr var(--right-w);grid-template-areas:"header header header" "left   center right" "status status status";height:100vh;width:100vw}.header{grid-area:header;display:flex;align-items:center;gap:16px;padding:0 16px;background:var(--surface);border-bottom:1px solid var(--border)}.header .logo{display:flex;align-items:center;gap:8px;font-weight:600;font-size:15px}.header .logo .dot{width:10px;height:10px;border-radius:2px;background:var(--brand)}.header .spacer{flex:1}.header .actions{display:flex;align-items:center;gap:8px}.btn{display:inline-flex;align-items:center;gap:6px;padding:6px 12px;border-radius:var(--radius);background:var(--surface-3);border:1px solid var(--border);font-size:13px;color:var(--text);transition:background .15s,border-color .15s}.btn:hover{background:var(--border)}.btn.primary{background:var(--brand);border-color:var(--brand);color:#fff}.btn.primary:hover{filter:brightness(1.08)}.btn.ghost{background:transparent;border-color:transparent}.btn.ghost:hover{background:var(--surface-3)}.layer-toggles{display:flex;gap:4px;padding:4px;background:var(--surface-2);border-radius:var(--radius)}.layer-toggle{padding:4px 8px;border-radius:4px;font-size:12px;color:var(--text-muted)}.layer-toggle.active{background:var(--surface-3);color:var(--text)}.left{grid-area:left;background:var(--surface);border-right:1px solid var(--border);display:flex;flex-direction:column;overflow:hidden}.left .dropzone{margin:12px;border:1.5px dashed var(--border-strong);border-radius:var(--radius-card);padding:18px;text-align:center;color:var(--text-muted);transition:border-color .15s,background .15s}.left .dropzone.active{border-color:var(--brand);background:var(--brand-soft);color:var(--text)}.left .dropzone .icon{font-size:22px;margin-bottom:6px}.left .dropzone .hint{font-size:12px}.file-list{flex:1;overflow-y:auto;padding:0 12px 12px}.file-card{background:var(--surface-2);border:1px solid var(--border);border-radius:var(--radius-card);padding:10px 12px;margin-bottom:8px;cursor:pointer;transition:border-color .15s,background .15s}.file-card:hover{border-color:var(--border-strong)}.file-card.active{border-color:var(--brand);background:var(--brand-soft)}.file-card .name{font-size:13px;color:var(--text);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.file-card .meta{display:flex;align-items:center;gap:8px;margin-top:6px}.badge{font-size:11px;padding:2px 6px;border-radius:4px;font-weight:500;display:inline-flex;align-items:center;gap:4px}.badge.pending{background:var(--surface-3);color:var(--text-muted)}.badge.detecting{background:#6f6fff26;color:var(--brand)}.badge.done{background:#1dc98126;color:var(--success)}.badge.error{background:#e8463a26;color:var(--danger)}.counts{font-size:11px;color:var(--text-muted)}.sync-dot{width:7px;height:7px;border-radius:50%;flex:none;cursor:default}.sync-dot.saved{background:var(--ok, #3fb950)}.sync-dot.error{background:var(--danger, #f85149);animation:sync-blink 1s infinite}@keyframes sync-blink{50%{opacity:.35}}.progress{height:4px;background:var(--surface-3);border-radius:2px;margin-top:6px;overflow:hidden}.progress>i{display:block;height:100%;background:var(--brand);transition:width .2s}.page-row{display:flex;gap:4px;margin-top:6px;flex-wrap:wrap}.page-chip{font-size:11px;padding:2px 6px;border-radius:4px;background:var(--surface-3);color:var(--text-muted)}.page-chip.current{background:var(--brand);color:#fff}.empty-left{padding:24px;text-align:center;color:var(--text-faint);font-size:12px}.center{grid-area:center;background:var(--bg);position:relative;overflow:hidden;display:flex;flex-direction:column}.canvas-toolbar{display:flex;align-items:center;gap:8px;padding:6px 12px;background:var(--surface);border-bottom:1px solid var(--border);font-size:12px;color:var(--text-muted)}.canvas-toolbar .spacer{flex:1}.zoom-ctrl{display:flex;align-items:center;gap:4px}.zoom-ctrl button{padding:4px 8px;border-radius:4px;background:var(--surface-3)}.zoom-ctrl button:hover{background:var(--border)}.zoom-val{width:48px;text-align:center;font-variant-numeric:tabular-nums}.canvas-wrap{flex:1;position:relative;overflow:hidden;background:linear-gradient(45deg,#dfe3e9 25%,transparent 25%),linear-gradient(-45deg,#dfe3e9 25%,transparent 25%),linear-gradient(45deg,transparent 75%,#dfe3e9 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.item{display:flex;align-items:center;gap:6px}.legend .sw{width:14px;height:3px;border-radius:2px}.hover-card{position:absolute;background:#fffffff7;border:1px solid var(--border-strong);border-radius:var(--radius);padding:8px 10px;font-size:12px;pointer-events:none;z-index:50;-webkit-backdrop-filter:blur(6px);backdrop-filter:blur(6px);min-width:120px}.hover-card .hc-seq{font-weight:600;color:var(--text-muted)}.hover-card .hc-text{font-size:14px;color:var(--text);margin:2px 0}.hover-card .hc-src{font-size:11px}.empty-center{position:absolute;top:0;right:0;bottom:0;left:0;display:flex;flex-direction:column;align-items:center;justify-content:center;color:var(--text-faint);gap:8px}.empty-center .big{font-size:40px;opacity:.5}.detect-overlay{position:absolute;top:12px;left:50%;transform:translate(-50%);display:flex;align-items:center;justify-content:center;z-index:10;pointer-events:none}.detect-card{width:330px;max-width:calc(100% - 32px);background:#fffffff2;border:1px solid var(--border);border-radius:var(--radius-card);padding:10px 16px 9px;box-shadow:0 10px 34px #1f243029;-webkit-backdrop-filter:blur(6px);backdrop-filter:blur(6px);display:flex;flex-direction:column;align-items:center;gap:3px;animation:detectIn .35s cubic-bezier(.2,.8,.3,1)}@keyframes detectIn{0%{opacity:0;transform:translateY(10px) scale(.97)}to{opacity:1;transform:none}}.detect-title{font-size:13px;font-weight:600;color:var(--text);margin-top:5px}.detect-sub{font-size:11px;color:var(--text-muted);max-width:100%;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.detect-bar{display:flex;align-items:center;gap:8px;width:100%;margin-top:10px}.detect-pct{font-size:13px;font-weight:600;color:var(--text);font-variant-numeric:tabular-nums;min-width:36px;text-align:right}.detect-meta{display:flex;align-items:center;gap:6px;font-size:11px;color:var(--text-muted)}.detect-clock{font-variant-numeric:tabular-nums}.detect-dot{opacity:.5}.detect-preview-hint{margin-top:6px;font-size:11px;color:#0f766e;background:#0d948817;border:1px solid rgba(13,148,136,.28);border-radius:8px;padding:5px 10px}.scan-anim{margin-top:2px}.scan-doc{fill:#f8fafc;stroke:var(--border-strong);stroke-width:1.5}.scan-lines{stroke:#9aa7bd;stroke-width:1.2;fill:none;opacity:.75}.scan-box{fill:#6f6fff24;stroke:var(--brand);stroke-width:1.2;animation:scanBoxPulse 2.6s ease-in-out infinite}.scan-box.b1{animation-delay:.2s}.scan-box.b2{animation-delay:1s}.scan-box.b3{animation-delay:1.7s}@keyframes scanBoxPulse{0%,to{opacity:.2}50%{opacity:1}}.scan-beam{animation:scanBeam 2.8s cubic-bezier(.45,0,.55,1) infinite alternate}@keyframes scanBeam{0%{transform:translateY(12px)}to{transform:translateY(64px)}}.scan-beam-glow{fill:var(--brand);opacity:.14}.scan-beam-line{fill:var(--brand)}.stage-steps{display:flex;align-items:flex-start;width:100%;margin-top:14px}.stage-step{display:flex;flex-direction:column;align-items:center;gap:5px;flex:0 0 auto;min-width:92px}.stage-node{position:relative;width:26px;height:26px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:12px;font-weight:600;background:var(--surface-3);color:var(--text-faint);border:1.5px solid var(--border-strong);transition:background .25s,border-color .25s,color .25s}.stage-step.done .stage-node{background:var(--success);border-color:var(--success);color:#fff}.stage-step.active .stage-node{background:var(--brand);border-color:var(--brand);color:#fff}.stage-ring{position:absolute;top:-5px;right:-5px;bottom:-5px;left:-5px;border-radius:50%;border:2px solid var(--brand);animation:stageRing 1.6s ease-out infinite}@keyframes stageRing{0%{transform:scale(.65);opacity:.9}to{transform:scale(1.3);opacity:0}}.stage-check{font-size:13px}.stage-label{font-size:12px;color:var(--text-faint)}.stage-step.done .stage-label,.stage-step.active .stage-label{color:var(--text)}.stage-step.active .stage-label{font-weight:600}.stage-desc{font-size:11px;color:var(--text-muted);white-space:nowrap}.stage-line{flex:1 1 auto;height:2px;min-width:10px;background:var(--border);border-radius:1px;margin-top:13px;transition:background .3s}.stage-line.done{background:var(--success)}.detect-card .stage-steps{margin-top:10px}.detect-card .stage-step{gap:4px;min-width:74px}.detect-card .stage-node{width:22px;height:22px;font-size:11px}.detect-card .stage-ring{top:-4px;right:-4px;bottom:-4px;left:-4px}.detect-card .stage-check,.detect-card .stage-label{font-size:11px}.detect-card .stage-desc{font-size:10px}.detect-card .stage-line{margin-top:11px}.detect-bar-track{flex:1;height:6px;border-radius:3px;background:var(--surface-3);overflow:hidden}.detect-bar-track>i{display:block;height:100%;border-radius:3px;position:relative;overflow:hidden;background:linear-gradient(90deg,var(--brand),#9d8cff);transition:width 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infinite}.diff-pct{font-size:15px;font-weight:600;color:var(--text);font-variant-numeric:tabular-nums;min-width:44px;text-align:right}.diff-meta{display:flex;align-items:center;gap:8px;font-size:12px;color:var(--text-muted);margin-top:8px}.diff-clock{font-variant-numeric:tabular-nums}.diff-dot{opacity:.5}.diff-hint-v2{margin-top:10px;font-size:12px;color:var(--text-faint);line-height:1.6}.right{grid-area:right;background:var(--surface);border-left:1px solid var(--border);display:flex;flex-direction:column;overflow:hidden}.stat-card{padding:12px;border-bottom:1px solid var(--border)}.stat-card .kpi{font-size:24px;font-weight:600;font-variant-numeric:tabular-nums}.stat-card .kpi-label{font-size:11px;color:var(--text-muted)}.source-bar{display:flex;height:6px;border-radius:3px;overflow:hidden;margin-top:8px;background:var(--surface-3)}.source-bar .ocr{background:var(--ocr-color)}.source-bar .sp{background:var(--sp-color)}.source-legend{display:flex;gap:12px;margin-top:6px;font-size:11px;color:var(--text-muted)}.filters{padding:10px 12px;border-bottom:1px solid var(--border);display:flex;flex-direction:column;gap:8px}.filter-tabs{display:flex;gap:4px;background:var(--surface-2);padding:3px;border-radius:var(--radius)}.filter-tab{flex:1;padding:5px;border-radius:5px;font-size:12px;color:var(--text-muted);text-align:center}.filter-tab.active{background:var(--surface-3);color:var(--text)}.search-input{width:100%;padding:6px 10px;border-radius:var(--radius);background:var(--surface-2);border:1px solid var(--border);font-size:12px;outline:none}.search-input:focus{border-color:var(--brand)}.ann-list{flex:1;overflow-y:auto}.ann-row{display:flex;align-items:center;gap:8px;padding:8px 12px;border-bottom:1px solid var(--border);cursor:pointer;transition:background 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var(--border)}.diff-panel-title{font-weight:600;font-size:15px}.diff-panel-docs{display:flex;align-items:center;gap:12px;padding:10px 16px;border-bottom:1px solid var(--border);font-size:12px}.diff-panel-docs .doc-label{color:var(--text-faint);margin-right:6px}.diff-panel-docs .doc-name{color:var(--text);max-width:360px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.diff-panel-docs .doc-arrow{color:var(--brand);font-size:16px}.diff-stats{display:grid;grid-template-columns:repeat(6,1fr);gap:8px;padding:12px 16px}.diff-stat{background:var(--surface-2);border:1px solid var(--border);border-radius:var(--radius);padding:8px 4px;text-align:center}.diff-stat .v{font-size:20px;font-weight:600;font-variant-numeric:tabular-nums}.diff-stat .k{font-size:11px;color:var(--text-muted);margin-top:2px}.diff-stat.ok .v{color:var(--success)}.diff-stat.warn .v{color:var(--warning)}.diff-stat.add .v{color:var(--success)}.diff-stat.del 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