:root{--panel-bg: #1e1e2e;--panel-surface: #282840;--panel-border: #363654;--panel-text: #cdd6f4;--panel-text-dim: #7f849c;--panel-text-bright: #f5f5ff;--panel-accent: #4361ee;--panel-accent-hover: #5a78f5;--panel-accent-glow: rgba(67, 97, 238, .25);--toolbar-bg: #181828;--toolbar-height: 48px;--canvas-bg: #f0f0f5;--canvas-page-bg: #ffffff;--canvas-shadow: 0 2px 24px rgba(0, 0, 0, .08);--hover-color: rgba(67, 97, 238, .45);--select-color: #4361ee;--panel-width: 280px;--layers-width: 220px;--font: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;--transition-fast: .15s ease;--transition-normal: .25s ease}*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}html,body{height:100%;overflow:hidden;font-family:var(--font);font-size:13px;color:var(--panel-text);background:var(--panel-bg);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}#toolbar{display:flex;align-items:center;justify-content:space-between;height:var(--toolbar-height);padding:0 16px;background:var(--toolbar-bg);border-bottom:1px solid var(--panel-border);z-index:100;gap:16px}.toolbar-left{display:flex;align-items:center;gap:8px;flex-shrink:0}.toolbar-brand{font-size:15px;font-weight:700;color:var(--panel-text-bright);letter-spacing:-.3px}.toolbar-divider{width:1px;height:20px;background:var(--panel-border);margin:0 4px}.toolbar-icon-btn{display:flex;align-items:center;justify-content:center;width:32px;height:32px;border:none;border-radius:6px;background:transparent;color:var(--panel-text-dim);cursor:pointer;transition:all var(--transition-fast)}.toolbar-icon-btn:hover:not(:disabled){background:var(--panel-surface);color:var(--panel-text-bright)}.toolbar-icon-btn:disabled{opacity:.3;cursor:not-allowed}.toolbar-center{flex:1;display:flex;justify-content:center}.toolbar-hint{font-size:12px;color:var(--panel-text-dim)}.toolbar-hint kbd{display:inline-block;padding:1px 6px;font-size:11px;font-family:var(--font);background:var(--panel-surface);border:1px solid var(--panel-border);border-radius:4px;color:var(--panel-text);margin:0 2px}.toolbar-right{display:flex;align-items:center;gap:8px;flex-shrink:0}.toolbar-btn{padding:6px 14px;border:none;border-radius:6px;font-family:var(--font);font-size:12px;font-weight:600;cursor:pointer;transition:all var(--transition-fast);white-space:nowrap}.toolbar-btn.primary{background:var(--panel-accent);color:#fff}.toolbar-btn.primary:hover{background:var(--panel-accent-hover);box-shadow:0 0 12px var(--panel-accent-glow);transform:translateY(-1px)}.toolbar-btn.secondary{background:var(--panel-surface);color:var(--panel-text);border:1px solid var(--panel-border)}.toolbar-btn.secondary:hover{background:var(--panel-border);color:var(--panel-text-bright);transform:translateY(-1px)}.toolbar-export-group{display:flex;align-items:center;gap:2px}.toolbar-dropdown{position:relative}.toolbar-dropdown-menu{position:absolute;top:100%;right:0;margin-top:8px;background:var(--panel-bg);border:1px solid var(--panel-border);border-radius:8px;box-shadow:0 4px 20px #0006;min-width:180px;padding:6px;display:none;flex-direction:column;gap:2px;z-index:200}.toolbar-dropdown:hover .toolbar-dropdown-menu,.toolbar-dropdown-menu.show{display:flex}.toolbar-dropdown-menu button{display:flex;align-items:center;gap:8px;width:100%;padding:8px 12px;background:transparent;border:none;border-radius:4px;color:var(--panel-text);font-family:var(--font);font-size:12px;cursor:pointer;text-align:left;transition:all var(--transition-fast)}.toolbar-dropdown-menu button:hover{background:var(--panel-surface);color:var(--panel-text-bright)}.toolbar-dropdown-menu button svg{color:var(--panel-text-dim)}#app-layout{display:flex;height:calc(100vh - var(--toolbar-height))}#layers-panel{width:var(--layers-width);flex-shrink:0;background:var(--panel-bg);display:flex;flex-direction:column;overflow:hidden}.layers-header{display:flex;align-items:center;justify-content:space-between;padding:14px 16px;border-bottom:1px solid var(--panel-border);flex-shrink:0}.layers-header h2{font-size:14px;font-weight:600;color:var(--panel-text-bright)}.layers-tree{flex:1;overflow-y:auto;padding:6px 0;scrollbar-width:thin;scrollbar-color:var(--panel-border) transparent}.layers-tree::-webkit-scrollbar{width:5px}.layers-tree::-webkit-scrollbar-track{background:transparent}.layers-tree::-webkit-scrollbar-thumb{background:var(--panel-border);border-radius:3px}.layer-row{display:flex;align-items:center;gap:4px;padding:4px 8px;font-size:12px;cursor:pointer;-webkit-user-select:none;user-select:none;border-radius:4px;margin:1px 4px;transition:background var(--transition-fast);white-space:nowrap;overflow:hidden}.layer-row:hover{background:#ffffff0a}.layer-row.layer-active{background:var(--panel-accent-glow);border:1px solid rgba(67,97,238,.3);margin:0 3px}.layer-row.layer-dragging{opacity:.4}.layer-row.layer-drop-target{border-top:2px solid var(--panel-accent)}.layer-arrow{width:12px;flex-shrink:0;font-size:10px;color:var(--panel-text-dim);text-align:center}.layer-icon{width:16px;flex-shrink:0;font-size:10px;text-align:center;color:var(--panel-accent)}.layer-tag{color:var(--panel-text);font-weight:500;font-size:11px}.layer-name{color:var(--panel-text-dim);font-size:10px;max-width:70px;overflow:hidden;text-overflow:ellipsis}.layer-name.has-name{color:var(--panel-accent);font-weight:500;font-size:10px}.layer-preview{color:var(--panel-text-dim);font-size:10px;opacity:.6;max-width:80px;overflow:hidden;text-overflow:ellipsis;margin-left:auto}.layer-rename-input{width:80px;padding:2px 6px;font-size:11px;font-family:var(--font);background:var(--panel-surface);border:1px solid var(--panel-accent);border-radius:4px;color:var(--panel-text-bright);outline:none;box-shadow:0 0 0 2px var(--panel-accent-glow)}.layers-hint{font-size:12px;cursor:help;opacity:.5}#canvas-area{flex:1;display:flex;flex-direction:row;align-items:stretch;justify-content:stretch;background:var(--canvas-bg);overflow:hidden;position:relative}.canvas-main-content{flex:1;display:flex;flex-direction:column;align-items:center;justify-content:flex-start;padding:32px;overflow:hidden;position:relative;min-width:300px}#canvas-wrapper{position:relative;width:100%;max-width:1400px;flex:1;display:flex;flex-direction:column;background:var(--canvas-page-bg);border-radius:8px;box-shadow:var(--canvas-shadow);overflow:hidden;flex-shrink:1}#canvas-iframe{width:100%;flex:1;border:none;display:block;background:var(--canvas-page-bg)}#hover-overlay,#select-overlay{position:absolute;pointer-events:none;border-radius:2px;z-index:10;transition:all .08s ease-out;display:none}#hover-overlay{border:2px dashed var(--hover-color);background:#4361ee0a}#select-overlay{border:2px solid var(--select-color);background:#4361ee0f;z-index:11}#styles-panel{width:var(--panel-width);flex-shrink:0;background:var(--panel-bg);border-left:1px solid var(--panel-border);display:flex;flex-direction:column;overflow-y:auto;scrollbar-width:thin;scrollbar-color:var(--panel-border) transparent}#styles-panel::-webkit-scrollbar{width:5px}#styles-panel::-webkit-scrollbar-track{background:transparent}#styles-panel::-webkit-scrollbar-thumb{background:var(--panel-border);border-radius:3px}.panel-header{display:flex;align-items:center;justify-content:space-between;padding:14px 16px;border-bottom:1px solid var(--panel-border);flex-shrink:0}.panel-header h2{font-size:14px;font-weight:600;color:var(--panel-text-bright)}.panel-tabs{display:flex;gap:2px;background:var(--panel-surface);border-radius:6px;padding:2px}.panel-tab{padding:4px 12px;border:none;border-radius:4px;font-family:var(--font);font-size:11px;font-weight:500;color:var(--panel-text-dim);background:transparent;cursor:pointer;transition:all var(--transition-fast)}.panel-tab.active{background:var(--panel-accent);color:#fff}.panel-tab:hover:not(.active){color:var(--panel-text)}.panel-content{display:none;flex-direction:column}.panel-content.active{display:flex}.panel-empty{display:flex;flex-direction:column;align-items:center;justify-content:center;padding:48px 24px;text-align:center;color:var(--panel-text-dim);gap:12px}.panel-empty svg{opacity:.4}.panel-empty p{font-size:12px;line-height:1.5}.selected-tag{padding:8px 16px;font-size:11px;font-weight:500;color:var(--panel-accent);background:var(--panel-accent-glow);border-bottom:1px solid var(--panel-border);font-family:Courier New,monospace}.panel-sections{display:flex;flex-direction:column}.panel-section{padding:14px 16px;border-bottom:1px solid var(--panel-border)}.section-title{font-size:10px;font-weight:600;text-transform:uppercase;letter-spacing:.8px;color:var(--panel-text-dim);margin-bottom:12px}.style-row{display:flex;align-items:center;justify-content:space-between;margin-bottom:10px}.style-row:last-child{margin-bottom:0}.style-row label,.style-field label{font-size:12px;color:var(--panel-text);font-weight:400;white-space:nowrap}.style-row-grid{display:grid;gap:10px;margin-bottom:10px}.style-row-grid.two-col{grid-template-columns:1fr 1fr}.style-field{display:flex;flex-direction:column;gap:4px}.color-input-hex{display:flex;align-items:center;gap:6px}.hex-swatch{-webkit-appearance:none;-moz-appearance:none;appearance:none;width:28px;height:28px;border:2px solid var(--panel-border);border-radius:6px;background:transparent;cursor:pointer;padding:0;flex-shrink:0;transition:border-color var(--transition-fast)}.hex-swatch:hover{border-color:var(--panel-accent)}.hex-swatch::-webkit-color-swatch-wrapper{padding:2px}.hex-swatch::-webkit-color-swatch{border:none;border-radius:3px}.hex-text{width:80px;padding:4px 8px;background:var(--panel-surface);border:1px solid var(--panel-border);border-radius:5px;color:var(--panel-text-bright);font-family:Courier New,monospace;font-size:11px;letter-spacing:.3px;outline:none;transition:border-color var(--transition-fast)}.hex-text:focus{border-color:var(--panel-accent);box-shadow:0 0 0 2px var(--panel-accent-glow)}input[type=color]{-webkit-appearance:none;-moz-appearance:none;appearance:none;width:32px;height:28px;border:2px solid var(--panel-border);border-radius:6px;background:transparent;cursor:pointer;padding:0;transition:border-color var(--transition-fast)}input[type=color]:hover{border-color:var(--panel-accent)}input[type=color]::-webkit-color-swatch-wrapper{padding:2px}input[type=color]::-webkit-color-swatch{border:none;border-radius:3px}input[type=number],select{width:100%;padding:6px 8px;background:var(--panel-surface);border:1px solid var(--panel-border);border-radius:6px;color:var(--panel-text-bright);font-family:var(--font);font-size:12px;transition:border-color var(--transition-fast);outline:none}input[type=number]:focus,select:focus{border-color:var(--panel-accent);box-shadow:0 0 0 2px var(--panel-accent-glow)}input[type=number]{-moz-appearance:textfield}input[type=number]::-webkit-inner-spin-button,input[type=number]::-webkit-outer-spin-button{opacity:1}select{cursor:pointer}.input-with-unit{display:flex;align-items:center;position:relative}.input-with-unit input{padding-right:28px}.input-with-unit .unit{position:absolute;right:8px;font-size:11px;color:var(--panel-text-dim);pointer-events:none}.align-buttons{display:flex;gap:2px;background:var(--panel-surface);border-radius:6px;padding:2px}.align-btn{display:flex;align-items:center;justify-content:center;width:30px;height:28px;border:none;border-radius:4px;background:transparent;color:var(--panel-text-dim);cursor:pointer;transition:all var(--transition-fast)}.align-btn:hover{color:var(--panel-text);background:#ffffff0d}.align-btn.active{color:#fff;background:var(--panel-accent)}.modal-overlay{position:fixed;top:0;right:0;bottom:0;left:0;background:#0009;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);z-index:1000;display:flex;align-items:center;justify-content:center;animation:fadeIn .2s ease}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}.modal-content{width:680px;max-width:90vw;max-height:80vh;background:var(--panel-bg);border:1px solid var(--panel-border);border-radius:12px;display:flex;flex-direction:column;box-shadow:0 24px 48px #0000004d;animation:slideUp .25s ease}@keyframes slideUp{0%{transform:translateY(20px);opacity:0}to{transform:translateY(0);opacity:1}}.modal-header{display:flex;align-items:center;justify-content:space-between;padding:16px 20px;border-bottom:1px solid var(--panel-border)}.modal-header h3{font-size:15px;font-weight:600;color:var(--panel-text-bright)}.modal-close-btn{width:28px;height:28px;border:none;border-radius:6px;background:transparent;color:var(--panel-text-dim);font-size:18px;cursor:pointer;display:flex;align-items:center;justify-content:center;transition:all var(--transition-fast)}.modal-close-btn:hover{background:var(--panel-surface);color:var(--panel-text-bright)}#html-input{flex:1;min-height:300px;margin:16px 20px;padding:14px;background:var(--panel-surface);border:1px solid var(--panel-border);border-radius:8px;color:var(--panel-text-bright);font-family:Courier New,monospace;font-size:13px;line-height:1.5;resize:vertical;outline:none;transition:border-color var(--transition-fast)}#html-input:focus{border-color:var(--panel-accent);box-shadow:0 0 0 2px var(--panel-accent-glow)}#html-input::placeholder{color:var(--panel-text-dim)}.modal-actions{display:flex;justify-content:flex-end;gap:8px;padding:12px 20px;border-top:1px solid var(--panel-border)}.toast{position:fixed;bottom:24px;left:50%;transform:translate(-50%) translateY(80px);padding:10px 20px;background:var(--panel-surface);border:1px solid var(--panel-border);border-radius:8px;color:var(--panel-text-bright);font-family:var(--font);font-size:13px;font-weight:500;box-shadow:0 8px 32px #00000040;z-index:2000;opacity:0;transition:all .3s ease;pointer-events:none}.toast.show{opacity:1;transform:translate(-50%) translateY(0)}.resize-handle{width:6px;flex-shrink:0;background:var(--panel-border);cursor:col-resize;position:relative;z-index:20;transition:background var(--transition-fast)}.resize-handle:hover,.resize-handle:active{background:var(--panel-accent)}.resize-handle:after{content:"";position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);width:2px;height:24px;background:#ffffff26;border-radius:2px;transition:background var(--transition-fast)}.resize-handle:hover:after{background:#ffffff80}.panel-text-input{width:100%;padding:6px 10px;background:var(--panel-surface);border:1px solid var(--panel-border);border-radius:6px;color:var(--panel-text-bright);font-family:var(--font);font-size:12px;outline:none;transition:border-color var(--transition-fast)}.panel-text-input:focus{border-color:var(--panel-accent);box-shadow:0 0 0 2px var(--panel-accent-glow)}.panel-text-input::placeholder{color:var(--panel-text-dim)}.insert-url-row{display:flex;gap:6px}.insert-url-row .panel-text-input{flex:1}.insert-go-btn{width:32px;height:32px;flex-shrink:0;border:none;border-radius:6px;background:var(--panel-accent);color:#fff;cursor:pointer;display:flex;align-items:center;justify-content:center;transition:all var(--transition-fast)}.insert-go-btn:hover{background:var(--panel-accent-hover);transform:translateY(-1px)}.insert-drop-zone{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:6px;padding:20px 12px;border:2px dashed var(--panel-border);border-radius:10px;color:var(--panel-text-dim);font-size:12px;cursor:pointer;transition:all var(--transition-fast);text-align:center}.insert-drop-zone:hover{border-color:var(--panel-accent);background:#4361ee0d}.insert-drop-zone.drag-over{border-color:var(--panel-accent);background:var(--panel-accent-glow)}.insert-drop-zone p{margin:0;line-height:1.4}.insert-drop-zone .drop-hint{font-size:10px;opacity:.6}.insert-quick-btns{display:grid;grid-template-columns:1fr 1fr;gap:6px}.insert-element-btn{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:6px;padding:14px 8px;border:1px solid var(--panel-border);border-radius:8px;background:var(--panel-surface);color:var(--panel-text);cursor:pointer;font-family:var(--font);font-size:11px;transition:all var(--transition-fast)}.insert-element-btn:hover{border-color:var(--panel-accent);background:var(--panel-accent-glow);color:var(--panel-text-bright);transform:translateY(-1px)}.insert-element-btn svg{opacity:.6}.insert-element-btn:hover svg{opacity:1}.insert-danger-btn{display:flex;align-items:center;justify-content:center;gap:6px;width:100%;padding:8px 12px;border:1px solid #ff4d6a30;border-radius:6px;background:#ff4d6a14;color:#ff4d6a;cursor:pointer;font-family:var(--font);font-size:12px;font-weight:500;transition:all var(--transition-fast)}.insert-danger-btn:hover{background:#ff4d6a2e;border-color:#ff4d6a60}.editor-disabled #hover-overlay,.editor-disabled #select-overlay{display:none!important}.editor-disabled #canvas-iframe{pointer-events:auto}.bp-controls{display:flex;align-items:center;gap:4px}.bp-btn{background:none;border:1px solid transparent;color:var(--panel-text-dim);font-size:16px;padding:4px 10px;border-radius:6px;cursor:pointer;transition:all var(--transition-fast);font-family:var(--font);line-height:1}.bp-btn:hover{background:var(--panel-surface);color:var(--panel-text)}.bp-btn.active{background:var(--panel-accent);color:#fff;border-color:var(--panel-accent)}.bp-width-label{font-size:11px;color:var(--panel-text-dim);margin-left:8px;font-family:var(--font)}.layout-btn-group{display:flex;gap:2px;flex:1}.layout-btn{background:var(--panel-surface);border:1px solid var(--panel-border);color:var(--panel-text-dim);font-size:13px;padding:5px 8px;border-radius:4px;cursor:pointer;transition:all var(--transition-fast);font-family:var(--font);line-height:1;min-width:28px;text-align:center}.layout-btn:hover{background:var(--panel-accent-glow);color:var(--panel-text);border-color:var(--panel-accent)}.layout-btn.active{background:var(--panel-accent);color:#fff;border-color:var(--panel-accent)}.toggle-btn{font-size:11px;padding:4px 12px}.toggle-btn.active{background:var(--panel-accent);color:#fff}.style-input.wide{width:100%;flex:1}#breadcrumb-bar{width:100%;max-width:860px;display:flex;align-items:center;gap:2px;padding:6px 12px;background:var(--panel-bg);border-radius:0 0 8px 8px;overflow-x:auto;overflow-y:hidden;white-space:nowrap;min-height:32px;margin-bottom:16px;scrollbar-width:thin;scrollbar-color:var(--panel-border) transparent}#breadcrumb-bar::-webkit-scrollbar{height:3px}#breadcrumb-bar::-webkit-scrollbar-thumb{background:var(--panel-border);border-radius:2px}.breadcrumb-item{background:none;border:none;color:var(--panel-text-dim);font-size:11px;font-family:var(--font);cursor:pointer;padding:2px 6px;border-radius:4px;transition:all var(--transition-fast);flex-shrink:0}.breadcrumb-item:hover{background:var(--panel-surface);color:var(--panel-text)}.breadcrumb-item.active{background:var(--panel-accent);color:#fff;font-weight:600}.breadcrumb-sep{color:var(--panel-text-dim);font-size:10px;opacity:.5;flex-shrink:0;-webkit-user-select:none;user-select:none}.breadcrumb-empty{color:var(--panel-text-dim);font-size:11px;font-style:italic}.context-menu{display:none;position:fixed;z-index:10000;min-width:200px;background:var(--panel-bg);border:1px solid var(--panel-border);border-radius:8px;box-shadow:0 8px 32px #0006;padding:4px;font-family:var(--font);animation:contextFadeIn .1s ease}@keyframes contextFadeIn{0%{opacity:0;transform:scale(.95)}to{opacity:1;transform:scale(1)}}.context-menu-item{display:flex;align-items:center;gap:10px;width:100%;padding:8px 12px;background:none;border:none;color:var(--panel-text);font-size:12.5px;font-family:var(--font);cursor:pointer;border-radius:5px;transition:background var(--transition-fast);text-align:left}.context-menu-item:hover{background:var(--panel-surface)}.context-menu-item.disabled{opacity:.35;cursor:not-allowed;pointer-events:none}.ctx-icon{font-size:14px;width:20px;text-align:center;flex-shrink:0}.ctx-label{flex:1}.context-menu-divider{height:1px;background:var(--panel-border);margin:4px 8px}@media(max-width:1024px){#layers-panel{width:180px}#styles-panel{width:240px}.toolbar-center{display:none}}@media(max-width:768px){#layers-panel{display:none}#styles-panel{width:240px}.toolbar-center{display:none}}.form-fields-list{display:flex;flex-wrap:wrap;gap:6px;margin:6px 0}.form-field-toggle{display:flex;align-items:center;gap:5px;padding:5px 10px;background:var(--panel-surface);border:1px solid var(--panel-border);border-radius:6px;font-size:12px;color:var(--panel-text-dim);cursor:pointer;transition:all var(--transition-fast);-webkit-user-select:none;user-select:none}.form-field-toggle:hover{border-color:var(--panel-accent);color:var(--panel-text)}.form-field-toggle input[type=checkbox]{accent-color:var(--panel-accent);width:14px;height:14px}.form-field-toggle:has(input:checked){background:var(--panel-accent-glow);border-color:var(--panel-accent);color:var(--panel-text)}.section-subtitle{margin:8px 0 4px;font-size:11px;color:var(--color-gray-400);text-transform:uppercase;letter-spacing:.5px}@media print{h1,h2,h3,h4,h5,h6{page-break-after:avoid;break-after:avoid}table,img,pre,.keep-together{page-break-inside:avoid;break-inside:avoid}}#print-preview-panel{width:420px;background:var(--panel-bg);border-left:1px solid var(--panel-border);display:flex;flex-direction:column;flex-shrink:0}.preview-header{display:flex;align-items:center;justify-content:space-between;padding:14px 16px;border-bottom:1px solid var(--panel-border);background:var(--panel-surface)}.preview-header h3{font-size:12px;font-weight:600;color:var(--panel-text-bright);text-transform:uppercase;letter-spacing:.5px;margin:0}.preview-content{flex:1;overflow-y:auto;overflow-x:hidden;background:#323639;display:flex;flex-direction:column;align-items:center;padding:24px 0}.a4-wrapper{transform-origin:top center;margin-bottom:24px}.a4-page-container{width:100%;position:relative}#preview-iframe{width:100%;height:100%;border:none;background:transparent;display:block}.preview-actions{padding:16px;border-top:1px solid var(--panel-border);background:var(--panel-bg);display:flex;justify-content:flex-end}