:root{--accent:#e11d2e;--accent-hover:#c81626;--accent-soft:#e11d2e1a;--select:#2563eb;--bg:#eef1f5;--surface:#fff;--border:#e5e7eb;--text:#111827;--muted:#6b7280;--header-h:56px;--status-h:36px;--toolbar-w:76px;--panel-w:284px}*{box-sizing:border-box}html,body,#root{height:100%;margin:0}body{color:var(--text);background:var(--bg);-webkit-font-smoothing:antialiased;font-family:system-ui,-apple-system,Segoe UI,Roboto,Helvetica Neue,Arial,sans-serif;overflow:hidden}button{font:inherit}:focus-visible{outline:2px solid var(--select);outline-offset:2px}.app{flex-direction:column;height:100%;display:flex}.header{height:var(--header-h);background:var(--surface);border-bottom:1px solid var(--border);z-index:50;flex:none;align-items:center;gap:14px;padding:0 16px;display:flex;box-shadow:0 1px 3px #1018280f}.brand{align-items:center;gap:10px;min-width:0;display:flex}.brand-logo{border-radius:4px;flex:none;display:block}.brand-name{letter-spacing:-.01em;white-space:nowrap;font-size:17px;font-weight:700}.file-chip{text-overflow:ellipsis;white-space:nowrap;border:1px solid var(--border);max-width:38%;color:var(--muted);background:#f9fafb;border-radius:999px;margin-inline:auto;padding:4px 14px;font-size:13px;overflow:hidden}.doc-tabs{align-items:center;gap:6px;max-width:60%;margin-inline:auto;padding:3px 2px;display:flex;overflow-x:auto}.doc-tab{border:2px solid var(--border);background:var(--surface);max-width:220px;color:var(--muted);cursor:pointer;white-space:nowrap;border-radius:8px;flex:none;align-items:center;gap:4px;padding:5px 6px 5px 12px;font-size:13px;font-weight:500;transition:border-color .14s,color .14s,background .14s;display:inline-flex}.doc-tab:hover{color:var(--text);background:#f9fafb}.doc-tab.active{border-color:var(--accent);color:var(--text);background:var(--accent-soft);font-weight:600}.doc-tab-name{text-overflow:ellipsis;white-space:nowrap;overflow:hidden}.doc-tab-close{width:18px;height:18px;color:var(--muted);cursor:pointer;background:0 0;border:none;border-radius:5px;flex:none;justify-content:center;align-items:center;margin-left:2px;font-size:15px;line-height:1;transition:background .12s,color .12s;display:inline-flex}.doc-tab-close:hover{color:var(--text);background:#11182717}.modal-backdrop{z-index:300;background:#11182773;justify-content:center;align-items:center;padding:20px;animation:.14s ease-out toast-in;display:flex;position:fixed;inset:0}.modal-card{background:var(--surface);border-radius:12px;width:100%;max-width:400px;padding:22px;box-shadow:0 24px 60px #10182852}.modal-card h2{margin:0 0 8px;font-size:16px;font-weight:700}.modal-card p{color:var(--muted);margin:0 0 18px;font-size:13.5px;line-height:1.5}.modal-actions{justify-content:flex-end;gap:8px;display:flex}.modal-merge{max-width:480px}.merge-list{border:1px solid var(--border);border-radius:8px;max-height:280px;margin:0 0 18px;padding:0;list-style:none;overflow-y:auto}.merge-item{border-bottom:1px solid var(--border)}.merge-item:last-child{border-bottom:none}.merge-item label{cursor:pointer;align-items:center;gap:10px;padding:10px 12px;display:flex}.merge-item label:hover{background:#f9fafb}.merge-item input[type=checkbox]{accent-color:var(--accent);cursor:pointer;flex:none}.merge-order{color:var(--muted);flex:none;min-width:18px;font-size:12.5px}.merge-name{text-overflow:ellipsis;white-space:nowrap;min-width:0;color:var(--text);flex:1;font-size:13px;overflow:hidden}.merge-meta{color:var(--muted);white-space:nowrap;flex:none;font-size:12px}.modal-split{max-width:440px}.split-input{border:1px solid var(--border);width:100%;min-height:100px;font:inherit;color:var(--text);background:var(--surface);resize:vertical;border-radius:8px;margin-bottom:10px;padding:10px 12px;font-size:13.5px;line-height:1.5}.split-input:focus{border-color:var(--accent);outline:none}p.split-hint{color:var(--muted);margin:0 0 18px;font-size:12.5px}p.split-error{color:#b91c1c;margin:0 0 18px;font-size:13px}.status-delete-page{color:#b91c1c;margin-left:4px}.status-delete-page:hover:not(:disabled){color:#b91c1c;background:#fef2f2}.header-actions{align-items:center;gap:8px;margin-left:auto;display:flex}.lang-select{border:1px solid var(--border);background:var(--surface);color:var(--text);cursor:pointer;border-radius:8px;padding:8px 10px;font-size:13.5px;font-weight:600}.lang-select:hover{background:#f3f4f6}.lang-select:focus{border-color:var(--accent);outline:none}.btn{cursor:pointer;border:1px solid #0000;border-radius:8px;justify-content:center;align-items:center;gap:7px;padding:8px 15px;font-size:14px;font-weight:600;transition:background .15s,border-color .15s,color .15s;display:inline-flex}.btn:disabled{opacity:.5;cursor:not-allowed}.btn-primary{background:var(--accent);color:#fff}.btn-primary:hover:not(:disabled){background:var(--accent-hover)}.btn-secondary{background:var(--surface);border-color:var(--border);color:var(--text)}.btn-secondary:hover:not(:disabled){background:#f3f4f6}.btn-danger{color:#b91c1c;background:#fff;border-color:#fecaca}.btn-danger:hover:not(:disabled){background:#fef2f2}.btn-block{width:100%}.icon-btn{color:#374151;cursor:pointer;background:0 0;border:1px solid #0000;border-radius:6px;justify-content:center;align-items:center;width:27px;height:27px;display:inline-flex}.icon-btn:hover:not(:disabled){background:#f3f4f6}.icon-btn:disabled{opacity:.35;cursor:default}.icon-btn.active{background:var(--accent-soft);color:var(--accent)}.workspace{flex:1;min-height:0;display:flex}.main{background:var(--bg);flex:1;min-width:0;display:flex;position:relative;overflow:hidden}.toolbar{width:var(--toolbar-w);background:var(--surface);border-right:1px solid var(--border);flex-direction:column;flex:none;gap:6px;padding:8px 6px;display:flex;overflow-y:auto}.toolbar-group{flex-direction:column;gap:3px;display:flex}.toolbar-divider{background:var(--border);height:1px;margin:6px 4px}.tool-btn{color:#374151;cursor:pointer;background:0 0;border:1px solid #0000;border-radius:9px;flex-direction:column;align-items:center;gap:4px;padding:9px 3px 7px;font-size:10.5px;line-height:1.1;transition:background .12s,color .12s;display:flex}.tool-btn:hover:not(:disabled){background:#f3f4f6}.tool-btn.active{background:var(--accent-soft);color:var(--accent);border-color:#e11d2e59}.tool-btn:disabled{opacity:.4;cursor:default}.viewer{background:#d9dee6;flex:1;min-width:0;overflow:auto}.viewer-pages{flex-direction:column;align-items:center;gap:20px;min-height:100%;padding:26px;display:flex}.page{-webkit-user-select:none;user-select:none;background:#fff;flex:none;position:relative;overflow:hidden;box-shadow:0 1px 2px #10182824,0 8px 24px #10182829}.page-canvas{width:100%;height:100%;display:block;position:absolute;inset:0}.text-layer{pointer-events:none;z-index:10;position:absolute;inset:0}.text-hit{pointer-events:auto;cursor:text;border-radius:2px;position:absolute}.text-hit.hover{background:#2563eb1a;outline:1px solid #2563eb8c}.img-layer{pointer-events:none;z-index:11;position:absolute;inset:0}.img-hit{pointer-events:auto;cursor:pointer;border:1.5px dashed #0000;border-radius:2px;transition:border-color .12s,background .12s;position:absolute}.img-hit:hover{background:#7c3aed1f;border-color:#7c3aedd9}.panel-actions{gap:8px;margin-top:8px;display:flex}.panel-actions .btn{flex:1;margin-top:0}.elements-layer{pointer-events:none;z-index:20;position:absolute;inset:0}.el{box-sizing:border-box;-webkit-user-select:none;user-select:none;touch-action:none;position:absolute}.el.selected{outline:2px solid var(--select);outline-offset:1px}.el-text-content{pointer-events:none;margin:0;display:block;position:absolute}.el img{pointer-events:none;-webkit-user-select:none;user-select:none}.handle{border:2px solid var(--select);z-index:3;background:#fff;border-radius:50%;width:10px;height:10px;position:absolute}.handle-nw{cursor:nwse-resize;top:0;left:0;transform:translate(-50%,-50%)}.handle-n{cursor:ns-resize;top:0;left:50%;transform:translate(-50%,-50%)}.handle-ne{cursor:nesw-resize;top:0;right:0;transform:translate(50%,-50%)}.handle-e{cursor:ew-resize;top:50%;right:0;transform:translate(50%,-50%)}.handle-se{cursor:nwse-resize;bottom:0;right:0;transform:translate(50%,50%)}.handle-s{cursor:ns-resize;bottom:0;left:50%;transform:translate(-50%,50%)}.handle-sw{cursor:nesw-resize;bottom:0;left:0;transform:translate(-50%,50%)}.handle-w{cursor:ew-resize;top:50%;left:0;transform:translate(-50%,-50%)}.ghost{border:1.5px dashed var(--select);pointer-events:none;z-index:25;position:absolute}.draw-surface{z-index:30;cursor:crosshair;position:absolute;inset:0}.inline-editor{z-index:40;border:1.5px dashed var(--select);resize:none;box-sizing:border-box;field-sizing:content;background:0 0;border-radius:2px;outline:none;margin:0;padding:0 2px;position:absolute;overflow:hidden;box-shadow:0 2px 12px #1018282e}.panel{width:var(--panel-w);background:var(--surface);border-left:1px solid var(--border);flex-direction:column;flex:none;min-height:0;display:flex}.panel-scroll{flex-direction:column;gap:16px;padding:14px 14px 20px;display:flex;overflow-y:auto}.panel-block h3{text-transform:uppercase;letter-spacing:.07em;color:var(--muted);margin:0 0 9px;font-size:11.5px;font-weight:700}.panel-empty-title{margin:0 0 6px;font-size:14px;font-weight:600}.panel-empty p{color:var(--muted);margin:0 0 8px;font-size:13px;line-height:1.5}.field{flex-direction:column;gap:5px;margin-bottom:11px;font-size:13px;display:flex}.field>span{color:var(--muted);font-size:12px}.field input[type=text],.field input[type=number],.field textarea{border:1px solid var(--border);width:100%;color:var(--text);background:#fff;border-radius:7px;padding:7px 9px;font-family:inherit;font-size:13.5px}.field textarea{resize:vertical;min-height:64px}.field input[type=color]{border:1px solid var(--border);cursor:pointer;background:#fff;border-radius:7px;width:100%;height:34px;padding:3px}.field input[type=color]:disabled{opacity:.45;cursor:default}.field input[type=range]{accent-color:var(--accent);width:100%}.field-row{gap:10px;display:flex}.field-small{flex:1}.field-check{flex-direction:row;align-items:center;gap:8px}.field-check input[type=checkbox]{accent-color:var(--accent);width:15px;height:15px}.segmented{border:1px solid var(--border);border-radius:7px;display:flex;overflow:hidden}.segmented button{cursor:pointer;color:var(--text);background:#fff;border:none;flex:1;padding:6px;font-size:13px}.segmented button+button{border-left:1px solid var(--border)}.segmented button.active{background:var(--text);color:#fff}.hint{color:var(--muted);border:1px dashed var(--border);background:#f9fafb;border-radius:7px;margin:4px 0 10px;padding:7px 9px;font-size:12px;line-height:1.45}.muted{color:var(--muted);margin:4px 0;font-size:13px;line-height:1.45}.layer-list{flex-direction:column;gap:4px;margin:0;padding:0;list-style:none;display:flex}.layer-list li{border:1px solid var(--border);border-radius:8px;align-items:center;gap:4px;padding:2px 6px;display:flex}.layer-list li.active{border-color:var(--select);background:#eff6ff}.layer-btn{cursor:pointer;text-align:left;min-width:0;color:var(--text);background:0 0;border:none;flex:1;align-items:center;gap:8px;padding:6px 4px;font-size:13px;display:flex}.layer-name{text-overflow:ellipsis;white-space:nowrap;overflow:hidden}.dot{border-radius:50%;flex:none;width:9px;height:9px}.dot-text{background:#2563eb}.dot-image{background:#7c3aed}.dot-rect{background:#059669}.dot-highlight{background:#eab308}.dot-erase{background:#9ca3af}.tips{color:var(--muted);flex-direction:column;gap:5px;margin:0;padding-left:16px;font-size:12.5px;line-height:1.5;display:flex}.tips b{color:var(--text)}.statusbar{height:var(--status-h);background:var(--surface);border-top:1px solid var(--border);color:var(--muted);z-index:50;flex:none;align-items:center;gap:16px;padding:0 12px;font-size:12.5px;display:flex}.status-left{flex:1;align-items:center;gap:12px;min-width:0;display:flex}.status-file{text-overflow:ellipsis;white-space:nowrap;max-width:240px;color:var(--text);font-weight:600;overflow:hidden}.status-center,.page-label{align-items:center;gap:6px;display:flex}.page-label input{text-align:center;border:1px solid var(--border);width:48px;color:var(--text);border-radius:6px;padding:3px 4px;font-size:12.5px}.status-right{flex:1;justify-content:flex-end;align-items:center;gap:14px;display:flex}.tool-hint{color:#9ca3af;white-space:nowrap;text-overflow:ellipsis;max-width:46ch;font-size:12px;overflow:hidden}.zoom-group{align-items:center;gap:3px;display:flex}.zoom-label{text-align:center;width:46px;color:var(--text);font-variant-numeric:tabular-nums}.empty-state{justify-content:center;align-items:center;padding:24px;display:flex;position:absolute;inset:0}.drop-card{background:var(--surface);text-align:center;cursor:pointer;border:2px dashed #c9d1db;border-radius:18px;flex-direction:column;align-items:center;gap:6px;max-width:540px;padding:42px 52px;transition:border-color .15s,box-shadow .15s;display:flex;box-shadow:0 4px 18px #1018280f}.drop-card:hover{border-color:var(--accent);box-shadow:0 10px 34px #e11d2e21}.drop-card h2{margin:10px 0 0;font-size:22px}.drop-card p{color:var(--muted);margin:0;font-size:14.5px}.drop-card small{color:#9ca3af;max-width:40ch;margin-top:14px;line-height:1.55}.drop-icon{color:var(--accent)}.center-msg{color:var(--muted);flex-direction:column;justify-content:center;align-items:center;gap:14px;padding:24px;display:flex;position:absolute;inset:0}.spinner{border:3px solid #e5e7eb;border-top-color:var(--accent);border-radius:50%;width:38px;height:38px;animation:.8s linear infinite spin}@keyframes spin{to{transform:rotate(360deg)}}.error-card{background:var(--surface);text-align:center;border:1px solid var(--border);border-radius:14px;max-width:480px;padding:30px 34px;box-shadow:0 10px 34px #1018281a}.error-card h2{margin:0 0 8px;font-size:18px}.error-card p{color:var(--muted);margin:0 0 18px;font-size:14px;line-height:1.5}.drag-overlay{z-index:200;-webkit-backdrop-filter:blur(2px);backdrop-filter:blur(2px);background:#1118278c;justify-content:center;align-items:center;display:flex;position:fixed;inset:0}.drag-overlay-box{color:#fff;text-align:center;border:3px dashed #fff;border-radius:18px;flex-direction:column;gap:10px;padding:44px 64px;display:flex}.drag-overlay-box strong{font-size:23px}.drag-overlay-box span{opacity:.9;font-size:14.5px}.toast{right:18px;bottom:calc(var(--status-h) + 14px);z-index:210;color:#fff;background:#111827;border-radius:9px;max-width:400px;padding:11px 15px;font-size:13.5px;animation:.18s ease-out toast-in;position:fixed;box-shadow:0 10px 30px #1018284d}@keyframes toast-in{0%{opacity:0;transform:translateY(8px)}to{opacity:1;transform:translateY(0)}}.viewer::-webkit-scrollbar{width:11px;height:11px}.panel-scroll::-webkit-scrollbar{width:11px;height:11px}.toolbar::-webkit-scrollbar{width:11px;height:11px}.viewer::-webkit-scrollbar-thumb{background:#b6bec9 padding-box padding-box;border:2px solid #0000;border-radius:8px}.panel-scroll::-webkit-scrollbar-thumb{background:#b6bec9 padding-box padding-box;border:2px solid #0000;border-radius:8px}.toolbar::-webkit-scrollbar-thumb{background:#b6bec9 padding-box padding-box;border:2px solid #0000;border-radius:8px}.viewer::-webkit-scrollbar-thumb:hover{background:#96a0ad padding-box padding-box}.viewer::-webkit-scrollbar-track{background:0 0}