:root{--primary-color:#4A90E2;--primary-hover:#357ABD;--secondary-color:#7B68EE;--success-color:#5CB85C;--danger-color:#D9534F;--warning-color:#F0AD4E;--info-color:#5BC0DE;--bg-primary:#FFF;--bg-secondary:#F8F9FA;--bg-tertiary:#E9ECEF;--text-primary:#212529;--text-secondary:#6C757D;--border-color:#DEE2E6;--sidebar-width:280px;--toolbar-height:48px;--menubar-height:52px;--shadow-sm:0 2px 4px rgba(0,0,0,0.08);--shadow-md:0 4px 12px rgba(0,0,0,0.12);--shadow-lg:0 8px 24px rgba(0,0,0,0.15);--transition-fast:0.2s ease;--transition-normal:0.3s ease;--gradient-primary:linear-gradient(135deg,#667eea 0,#764ba2 100%);--gradient-secondary:linear-gradient(135deg,#f093fb 0,#f5576c 100%);--gradient-success:linear-gradient(135deg,#4facfe 0,#00f2fe 100%)}.dark-mode{--bg-primary:#1A1A1A;--bg-secondary:#2D2D2D;--bg-tertiary:#3A3A3A;--text-primary:#E8E8E8;--text-secondary:#A0A0A0;--border-color:#404040}.theme-ocean{--primary-color:#0077BE;--bg-primary:#F0F8FF;--bg-secondary:#E1F5FE;--bg-tertiary:#B3E5FC;--text-primary:#01579B;--text-secondary:#0288D1;--border-color:#81D4FA}.theme-forest{--primary-color:#2E7D32;--bg-primary:#F1F8E9;--bg-secondary:#DCEDC8;--bg-tertiary:#C5E1A5;--text-primary:#1B5E20;--text-secondary:#388E3C;--border-color:#AED581}.theme-sunset{--primary-color:#F4511E;--bg-primary:#FFF3E0;--bg-secondary:#FFE0B2;--bg-tertiary:#FFCC80;--text-primary:#E64A19;--text-secondary:#FF5722;--border-color:#FFAB91}.theme-purple-dream{--primary-color:#7B1FA2;--bg-primary:#F3E5F5;--bg-secondary:#E1BEE7;--bg-tertiary:#CE93D8;--text-primary:#4A148C;--text-secondary:#8E24AA;--border-color:#BA68C8}.theme-rose-gold{--primary-color:#AD1457;--bg-primary:#FCE4EC;--bg-secondary:#F8BBD0;--bg-tertiary:#F48FB1;--text-primary:#880E4F;--text-secondary:#C2185B;--border-color:#F06292}.theme-midnight-blue{--primary-color:#1565C0;--bg-primary:#E3F2FD;--bg-secondary:#BBDEFB;--bg-tertiary:#90CAF9;--text-primary:#0D47A1;--text-secondary:#1976D2;--border-color:#64B5F6}.theme-emerald{--primary-color:#00897B;--bg-primary:#E0F2F1;--bg-secondary:#B2DFDB;--bg-tertiary:#80CBC4;--text-primary:#004D40;--text-secondary:#00695C;--border-color:#4DB6AC}.theme-amber{--primary-color:#FF8F00;--bg-primary:#FFF8E1;--bg-secondary:#FFECB3;--bg-tertiary:#FFE082;--text-primary:#FF6F00;--text-secondary:#FFA726;--border-color:#FFD54F}.theme-cyan{--primary-color:#0097A7;--bg-primary:#E0F7FA;--bg-secondary:#B2EBF2;--bg-tertiary:#80DEEA;--text-primary:#006064;--text-secondary:#00838F;--border-color:#4DD0E1}.theme-cherry-blossom{--primary-color:#D81B60;--bg-primary:#FCE4EC;--bg-secondary:#F8BBD0;--bg-tertiary:#F48FB1;--text-primary:#880E4F;--text-secondary:#C2185B;--border-color:#F06292}#editor-container{width:100%;height:calc(100vh - 180px);display:flex;flex-direction:column;background:var(--bg-primary);color:var(--text-primary);font-family:'Microsoft YaHei',sans-serif;position:relative;overflow:hidden;transition:background-color var(--transition-normal),color var(--transition-normal)}.dynamic-color-bar{position:absolute;top:0;left:0;right:0;height:4px;background:linear-gradient(90deg,#FF6B6B,#FFA07A,#FFD93D,#6BCF7F,#4ECDC4,#45B7D1,#5F9BF5,#9B59B6,#E056FD,#FF6B6B);background-size:200% 100%;animation:colorFlow 15s linear infinite;z-index:100}@keyframes colorFlow{0%{background-position:0 50%}100%{background-position:200% 50%}}.top-menubar{display:flex;justify-content:space-between;align-items:center;padding:8px 16px;background:var(--bg-secondary);border-bottom:1px solid var(--border-color);height:var(--menubar-height);box-shadow:var(--shadow-sm);margin-top:4px}.menu-group{display:flex;align-items:center;gap:4px}.menu-btn{display:inline-flex;align-items:center;gap:6px;padding:8px 12px;background:transparent;border:1px solid transparent;border-radius:6px;color:var(--text-primary);cursor:pointer;font-size:14px;transition:all var(--transition-fast);position:relative;overflow:hidden}.menu-btn::before{content:'';position:absolute;top:50%;left:50%;width:0;height:0;border-radius:50%;background:rgba(74,144,226,0.3);transform:translate(-50%,-50%);transition:width 0.6s,height 0.6s}.menu-btn:active::before{width:300px;height:300px;transition:width 0s,height 0s}.menu-btn:hover{background:rgba(74,144,226,0.08);border-color:var(--primary-color)}.menu-btn .btn-icon{font-size:16px}.menu-btn .btn-text{font-weight:500}.menu-btn.ai-btn{background:var(--gradient-primary);color:white;border:none}.menu-btn.ai-btn:hover{box-shadow:var(--shadow-md)}.theme-select{padding:6px 10px;border:1px solid var(--border-color);border-radius:6px;background:var(--bg-primary);color:var(--text-primary);font-size:13px;cursor:pointer;transition:all var(--transition-fast);min-width:120px}.theme-select:hover{border-color:var(--primary-color)}.theme-select:focus{outline:none;border-color:var(--primary-color);box-shadow:0 0 0 3px rgba(74,144,226,0.1)}.menu-divider{width:1px;height:24px;background:var(--border-color);margin:0 4px}.main-workspace{display:flex;flex:1;overflow:hidden;position:relative;min-height:calc(100vh - 260px)}.editor-panel{transition:padding-left var(--transition-normal)}.document-sidebar.collapsed ~ .sidebar-resizer ~ .editor-panel{padding-left:20px}.sidebar-expand-btn{position:absolute;left:0;top:50%;transform:translateY(-50%);z-index:20;background:var(--primary-color);color:white;border:none;border-radius:0 8px 8px 0;padding:12px 6px;cursor:pointer;font-size:18px;box-shadow:var(--shadow-md);transition:all var(--transition-fast);line-height:1}.sidebar-expand-btn:hover{background:var(--primary-hover);padding-left:10px;box-shadow:var(--shadow-lg)}.document-sidebar{width:var(--sidebar-width);background:var(--bg-secondary);border-right:1px solid var(--border-color);display:flex;flex-direction:column;transition:all var(--transition-normal);flex-shrink:0;position:relative;z-index:10}.document-sidebar.collapsed{width:0;min-width:0;margin-left:calc(-1 * var(--sidebar-width));border-right:none;overflow:hidden}.sidebar-resizer{width:4px;background:transparent;cursor:ew-resize;position:relative;flex-shrink:0;transition:background var(--transition-fast);z-index:5}.sidebar-resizer:hover,.sidebar-resizer.resizing{background:var(--primary-color)}.sidebar-resizer::after{content:'';position:absolute;top:0;left:-2px;right:-2px;bottom:0}.sidebar-header{display:flex;justify-content:space-between;align-items:center;padding:16px;border-bottom:1px solid var(--border-color)}.sidebar-header h3{margin:0;font-size:16px;font-weight:600;color:var(--text-primary)}.icon-btn{background:transparent;border:none;color:var(--text-secondary);cursor:pointer;font-size:18px;padding:4px 8px;border-radius:4px;transition:all var(--transition-fast)}.icon-btn:hover{background:var(--bg-tertiary);color:var(--text-primary)}.sidebar-search{padding:12px 16px;border-bottom:1px solid var(--border-color)}.sidebar-search input{width:100%;padding:8px 12px;border:1px solid var(--border-color);border-radius:6px;background:var(--bg-primary);color:var(--text-primary);font-size:13px;transition:all var(--transition-fast);box-sizing:border-box}.sidebar-search input:focus{outline:none;border-color:var(--primary-color);box-shadow:0 0 0 3px rgba(74,144,226,0.1)}.document-list{flex:1;overflow-y:auto;padding:8px}.doc-item{padding:12px;margin-bottom:6px;background:var(--bg-primary);border:1px solid var(--border-color);border-radius:8px;cursor:pointer;transition:all var(--transition-fast);position:relative;user-select:none}.doc-item:hover{box-shadow:var(--shadow-sm);border-color:var(--primary-color)}.doc-item.active{background:var(--gradient-primary);color:white;border-color:transparent;box-shadow:var(--shadow-sm)}.doc-item.active .doc-item-title,.doc-item.active .doc-item-meta{color:white;opacity:1}.doc-item.dragging{opacity:0.5;cursor:move;background:var(--bg-tertiary);border:2px dashed var(--primary-color);box-shadow:0 4px 12px rgba(74,144,226,0.3)}.doc-item.over{border-top:3px solid var(--primary-color);padding-top:9px;background:rgba(74,144,226,0.1)}.doc-item-title{font-weight:600;font-size:14px;margin-bottom:4px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.doc-item-meta{font-size:12px;opacity:0.7;display:flex;justify-content:space-between}.sidebar-footer{padding:12px 16px;border-top:1px solid var(--border-color);background:var(--bg-tertiary)}.doc-stats{font-size:12px;color:var(--text-secondary);text-align:center}.editor-panel{flex:1;display:flex;flex-direction:column;background:var(--bg-primary);overflow:hidden}.editor-toolbar{display:flex;align-items:flex-start;flex-wrap:wrap;gap:8px;padding:10px 16px;background:var(--bg-secondary);border-bottom:1px solid var(--border-color);min-height:auto;overflow:visible;row-gap:8px}.toolbar-section{display:flex;align-items:center;gap:4px;flex-shrink:0}.toolbar-select{padding:6px 10px;border:1px solid var(--border-color);border-radius:6px;background:var(--bg-primary);color:var(--text-primary);font-size:13px;cursor:pointer;transition:all var(--transition-fast);min-width:140px}.toolbar-select-small{padding:6px 8px;border:1px solid var(--border-color);border-radius:6px;background:var(--bg-primary);color:var(--text-primary);font-size:13px;cursor:pointer;transition:all var(--transition-fast);min-width:70px}.toolbar-select:hover,.toolbar-select-small:hover{border-color:var(--primary-color)}.toolbar-select:focus,.toolbar-select-small:focus{outline:none;border-color:var(--primary-color);box-shadow:0 0 0 3px rgba(74,144,226,0.1)}.toolbar-btn{display:inline-flex;align-items:center;justify-content:center;width:32px;height:32px;background:transparent;border:1px solid transparent;border-radius:6px;color:var(--text-primary);cursor:pointer;font-size:16px;transition:all var(--transition-fast)}.toolbar-btn:hover{background:var(--bg-tertiary);border-color:var(--border-color);box-shadow:var(--shadow-sm)}.toolbar-btn:active{transform:scale(0.95);box-shadow:none}.toolbar-btn.active{background:var(--primary-color);color:white;border-color:var(--primary-color)}.toolbar-divider{width:1px;height:24px;background:var(--border-color)}.color-picker-btn{position:relative;overflow:visible}.color-picker-btn .color-input{position:absolute;left:0;top:0;width:100%;height:100%;opacity:0;cursor:pointer;z-index:2}.color-picker-btn .color-icon{display:inline-flex;align-items:center;justify-content:center;width:100%;height:100%;font-weight:600;font-size:16px;pointer-events:none;z-index:1}.document-title-bar{display:flex;align-items:center;justify-content:space-between;padding:12px 20px;background:var(--bg-secondary);border-bottom:1px solid var(--border-color)}.doc-title-input{flex:1;padding:8px 12px;border:1px solid transparent;border-radius:6px;background:transparent;color:var(--text-primary);font-size:18px;font-weight:600;transition:all var(--transition-fast)}.doc-title-input:hover{background:var(--bg-tertiary);border-color:var(--border-color)}.doc-title-input:focus{outline:none;background:var(--bg-primary);border-color:var(--primary-color);box-shadow:0 0 0 3px rgba(74,144,226,0.1)}.doc-info{display:flex;align-items:center;gap:12px;font-size:13px;color:var(--text-secondary)}.doc-info .dot{opacity:0.5}.editor-area{flex:1;padding:40px 60px 300px 60px;overflow-y:auto;background:var(--bg-primary);color:var(--text-primary);font-size:16px;line-height:1.6;outline:none;transition:all var(--transition-normal);position:relative;min-height:600px;scroll-padding-bottom:100px}.editor-area:focus{background:linear-gradient(to bottom,rgba(74,144,226,0.05) 0,transparent 100%);box-shadow:inset 0 0 0 2px rgba(74,144,226,0.1),inset 0 0 20px rgba(74,144,226,0.05)}.editor-area::before{content:'';position:absolute;top:0;left:0;right:0;height:100%;background:linear-gradient(to right,transparent 0,rgba(74,144,226,0.02) 50%,transparent 100%);pointer-events:none;opacity:0;transition:opacity var(--transition-normal)}.editor-area:focus::before{opacity:1}.drop-zone-overlay{position:absolute;top:0;left:0;right:0;bottom:0;background:rgba(74,144,226,0.95);backdrop-filter:blur(10px);display:flex;align-items:center;justify-content:center;z-index:1000;animation:fadeIn 0.3s ease}.drop-zone-content{text-align:center;color:white}.drop-zone-icon{font-size:72px;margin-bottom:20px;animation:bounce 1s infinite}.drop-zone-text{font-size:24px;font-weight:600;text-shadow:0 2px 4px rgba(0,0,0,0.2)}@keyframes bounce{0%,100%{transform:translateY(0)}50%{transform:translateY(-20px)}}.editor-area p{margin:0.6em 0;line-height:1.6}.editor-area h1,.editor-area h2,.editor-area h3,.editor-area h4,.editor-area h5,.editor-area h6{margin:1.2em 0 0.4em;font-weight:600;line-height:1.3}.editor-area h1{font-size:2em}.editor-area h2{font-size:1.75em}.editor-area h3{font-size:1.5em}.editor-area h4{font-size:1.25em}.editor-area h5{font-size:1.1em}.editor-area h6{font-size:1em}.editor-area ul,.editor-area ol{margin:0.8em 0;padding-left:2em;line-height:1.6}.editor-area li{margin:0.3em 0}.editor-area .checklist{list-style:none;padding-left:0}.editor-area .checklist li{position:relative;padding-left:1.8em;cursor:pointer}.editor-area .checklist li:before{content:'☐';position:absolute;left:0;font-size:1.2em;color:var(--text-secondary)}.editor-area .checklist li.checked:before{content:'☑';color:var(--primary-color)}.editor-area .checklist li.checked{color:var(--text-tertiary);text-decoration:line-through}.editor-area a{color:var(--primary-color);text-decoration:none;border-bottom:1px solid transparent;transition:all var(--transition-fast)}.editor-area a:hover{border-bottom-color:var(--primary-color)}.editor-area img{max-width:100%;height:auto;border-radius:8px;margin:1em 0;box-shadow:var(--shadow-sm);cursor:pointer;transition:all 0.3s ease;display:inline-block}.editor-area img:hover{box-shadow:0 0 0 3px rgba(99,102,241,0.3),var(--shadow-md);transform:scale(1.02)}.resizable-image{position:relative}.resizable-image::after{content:'🔍';position:absolute;bottom:5px;right:5px;background:rgba(99,102,241,0.9);color:white;padding:4px 8px;border-radius:4px;font-size:12px;opacity:0;transition:opacity 0.3s ease;pointer-events:none}.resizable-image:hover::after{opacity:1}.editor-area code{background:var(--bg-secondary);padding:2px 6px;border-radius:4px;font-family:'Courier New',monospace;font-size:0.9em;color:var(--accent-color)}.editor-area pre{background:var(--bg-secondary);padding:16px;border-radius:8px;overflow-x:auto;margin:1em 0;border-left:4px solid var(--primary-color)}.editor-area pre code{background:transparent;padding:0}.editor-area blockquote{margin:1em 0;padding:12px 20px;border-left:4px solid var(--primary-color);background:var(--bg-secondary);border-radius:0 8px 8px 0;font-style:italic;color:var(--text-secondary)}.editor-area hr{border:none;border-top:2px solid var(--border-color);margin:2em 0}.editor-area table{border-collapse:collapse;width:100%;margin:1em 0;box-shadow:var(--shadow-sm);border-radius:8px;overflow:hidden}.editor-area table th,.editor-area table td{border:1px solid var(--border-color);padding:12px 16px;text-align:left}.editor-area table th{background:var(--bg-secondary);font-weight:600;color:var(--text-primary)}.editor-area table tr:nth-child(even){background:var(--bg-secondary)}.editor-area table tr:hover{background:var(--bg-tertiary)}.modal-overlay{position:fixed;top:0;left:0;right:0;bottom:0;background:rgba(0,0,0,0.5);backdrop-filter:blur(4px);display:flex;align-items:center;justify-content:center;z-index:100000;animation:fadeIn 0.3s ease}@keyframes fadeIn{from{opacity:0}to{opacity:1}}.modal-dialog{background:var(--bg-primary);border-radius:16px;box-shadow:var(--shadow-lg);max-width:900px;max-height:85vh;width:90%;display:flex;flex-direction:column;animation:slideUp 0.3s ease}#templatePanel .modal-dialog{max-width:1000px}#historyPanel .modal-dialog{max-width:700px}@keyframes slideUp{from{transform:translateY(50px);opacity:0}to{transform:translateY(0);opacity:1}}.modal-header{display:flex;justify-content:space-between;align-items:center;padding:20px 24px;border-bottom:1px solid var(--border-color);background:var(--bg-secondary)}.modal-header h3{margin:0;font-size:18px;font-weight:600;color:var(--text-primary)}.close-btn{background:transparent;border:none;color:var(--text-secondary);cursor:pointer;font-size:24px;padding:4px 8px;border-radius:6px;transition:all var(--transition-fast);line-height:1}.close-btn:hover{background:var(--bg-tertiary);color:var(--text-primary);transform:rotate(90deg)}.modal-body{padding:24px;max-height:70vh;overflow-y:auto}.template-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(140px,1fr));gap:12px}.template-card{padding:12px;border:1px solid var(--border-color);border-radius:8px;background:var(--bg-primary);cursor:pointer;transition:all var(--transition-normal);text-align:center}.template-card:hover{border-color:var(--primary-color);transform:translateY(-2px);box-shadow:var(--shadow-sm)}.template-preview{font-size:36px;margin-bottom:8px}.template-info{text-align:center}.template-name{font-weight:600;font-size:13px;margin-bottom:3px;color:var(--text-primary)}.template-desc{font-size:11px;color:var(--text-secondary);line-height:1.3}.history-list{display:flex;flex-direction:column;gap:12px}.history-item{padding:16px;border:1px solid var(--border-color);border-radius:10px;background:var(--bg-secondary);cursor:pointer;transition:all var(--transition-fast)}.history-item:hover{border-color:var(--primary-color);transform:translateX(4px);box-shadow:var(--shadow-sm)}.history-item-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:8px}.history-item-title{font-weight:600;font-size:14px;color:var(--text-primary)}.history-item-time{font-size:12px;color:var(--text-secondary)}.history-item-preview{font-size:13px;color:var(--text-secondary);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.export-options{display:grid;grid-template-columns:repeat(auto-fill,minmax(160px,1fr));gap:16px}.export-btn{display:flex;flex-direction:column;align-items:center;padding:24px 20px;border:2px solid var(--border-color);border-radius:12px;background:var(--bg-secondary);cursor:pointer;transition:all var(--transition-normal)}.export-btn:hover{border-color:var(--primary-color);transform:translateY(-4px);box-shadow:var(--shadow-md)}.export-icon{font-size:42px;margin-bottom:12px}.export-info{text-align:center}.export-name{font-weight:600;font-size:15px;margin-bottom:4px;color:var(--text-primary)}.export-desc{font-size:12px;color:var(--text-secondary)}.help-content{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:24px}.help-section h4{margin:0 0 16px;font-size:16px;font-weight:600;color:var(--text-primary)}.shortcut-list{display:flex;flex-direction:column;gap:10px}.shortcut-item{display:flex;justify-content:space-between;align-items:center;padding:10px 14px;background:var(--bg-secondary);border-radius:8px;transition:all var(--transition-fast)}.shortcut-item:hover{background:var(--bg-tertiary);transform:translateX(4px)}.shortcut-key{font-family:'Courier New',monospace;font-weight:600;font-size:13px;padding:4px 8px;background:var(--bg-primary);border:1px solid var(--border-color);border-radius:4px;color:var(--primary-color)}.shortcut-desc{font-size:13px;color:var(--text-secondary)}.find-replace-content{padding:10px 0}.form-group{margin-bottom:20px}.form-group label{display:block;margin-bottom:8px;font-size:14px;font-weight:500;color:var(--text-primary)}.find-input{width:100%;padding:10px 12px;border:1px solid var(--border-color);border-radius:8px;background:var(--bg-secondary);color:var(--text-primary);font-size:14px;transition:all var(--transition-fast)}.find-input:focus{outline:none;border-color:var(--primary-color);box-shadow:0 0 0 3px rgba(99,102,241,0.1)}.checkbox-label{display:inline-flex;align-items:center;margin-right:20px;font-size:14px;color:var(--text-primary);cursor:pointer}.checkbox-label input[type="checkbox"]{margin-right:6px;cursor:pointer}.find-result{min-height:24px;font-size:13px;color:var(--text-secondary);margin-top:10px}.modal-footer{display:flex;justify-content:flex-end;gap:10px;padding:16px 24px;border-top:1px solid var(--border-color);background:var(--bg-secondary)}.btn-primary,.btn-secondary{padding:10px 20px;border:none;border-radius:8px;font-size:14px;font-weight:500;cursor:pointer;transition:all var(--transition-fast)}.btn-primary{background:var(--primary-color);color:white}.btn-primary:hover{background:var(--primary-hover);transform:translateY(-2px);box-shadow:var(--shadow-md)}.btn-secondary{background:var(--bg-tertiary);color:var(--text-primary);border:1px solid var(--border-color)}.btn-secondary:hover{background:var(--bg-secondary);border-color:var(--primary-color);color:var(--primary-color)}.toast-notification{position:fixed;bottom:30px;right:30px;padding:16px 24px;background:var(--bg-primary);color:var(--text-primary);border-radius:10px;box-shadow:var(--shadow-lg);border-left:4px solid var(--primary-color);font-size:14px;z-index:100001;opacity:0;transform:translateY(20px);pointer-events:none;transition:all var(--transition-normal)}.toast-notification.show{opacity:1;transform:translateY(0);pointer-events:auto}.toast-notification.success{border-left-color:var(--success-color)}.toast-notification.error{border-left-color:var(--danger-color)}.toast-notification.warning{border-left-color:var(--warning-color)}.context-menu{position:fixed;background:var(--bg-primary);border:1px solid var(--border-color);border-radius:8px;box-shadow:0 8px 32px rgba(0,0,0,0.15);padding:4px;min-width:200px;z-index:100001;animation:menuSlideIn 0.12s ease;backdrop-filter:blur(10px)}@keyframes menuSlideIn{from{opacity:0;transform:scale(0.96) translateY(-3px)}to{opacity:1;transform:scale(1) translateY(0)}}.context-menu-item{display:flex;justify-content:space-between;align-items:center;padding:6px 12px;cursor:pointer;border-radius:4px;font-size:13px;color:var(--text-primary);transition:background var(--transition-fast);user-select:none;-webkit-user-select:none}.context-menu-item:hover{background:var(--bg-tertiary)}.context-menu-item:active{background:var(--bg-secondary)}.context-menu-item span:first-child{display:flex;align-items:center;gap:6px}.context-menu-shortcut{font-size:11px;color:var(--text-secondary);font-family:'Courier New',monospace;padding:1px 5px;background:var(--bg-secondary);border-radius:3px;margin-left:8px}.context-menu-divider{height:1px;background:var(--border-color);margin:3px 0}@media (max-width:1200px){.editor-area{padding:30px 40px}}@media (max-width:768px){:root{--sidebar-width:240px}.document-sidebar{position:absolute;top:0;left:0;bottom:0;z-index:1000;box-shadow:var(--shadow-lg);transform:translateX(-100%);transition:transform var(--transition-normal)}.document-sidebar.show{transform:translateX(0)}.top-menubar{overflow-x:auto;flex-wrap:nowrap;padding:8px 12px}.menu-group{flex-shrink:0}.editor-toolbar{gap:4px;padding:8px 12px;overflow-x:auto;flex-wrap:nowrap}.toolbar-section{gap:2px;flex-shrink:0}.menu-btn .btn-text,.toolbar-select,.toolbar-select-small{min-width:auto}.menu-btn,.toolbar-btn{min-width:36px;min-height:36px}.editor-area{padding:20px 16px}.template-grid,.export-options{grid-template-columns:repeat(auto-fill,minmax(140px,1fr))}.help-content{grid-template-columns:1fr}.doc-item{user-select:none;-webkit-user-select:none}.doc-item:hover{transform:none}}@media (max-width:480px){.modal-dialog{max-width:95%;max-height:95%}.modal-body{padding:16px}.template-grid,.export-options{grid-template-columns:1fr}}::-webkit-scrollbar{width:10px;height:10px}::-webkit-scrollbar-track{background:var(--bg-tertiary);border-radius:5px}::-webkit-scrollbar-thumb{background:var(--border-color);border-radius:5px;transition:background var(--transition-fast)}::-webkit-scrollbar-thumb:hover{background:var(--text-secondary)}::selection{background:rgba(74,144,226,0.3);color:inherit}@media print{.top-menubar,.editor-toolbar,.document-title-bar,.document-sidebar{display:none !important}.editor-area{padding:0;overflow:visible}#editor-container{height:auto}}@media (prefers-reduced-motion:reduce){*{animation-duration:0.01ms !important;animation-iteration-count:1 !important;transition-duration:0.01ms !important}}@media (prefers-contrast:high){:root{--border-color:#000}.dark-mode{--border-color:#FFF}}#editor-container.fullscreen-mode{position:fixed;top:0;left:0;right:0;bottom:0;width:100vw;height:100vh;background:var(--bg-primary);z-index:99999;margin:0;padding:0}#editor-container.fullscreen-mode .top-menubar{position:relative;z-index:100000;pointer-events:auto}#editor-container.fullscreen-mode .menu-btn{pointer-events:auto}.dropdown-group{position:relative;display:inline-block}.dropdown-menu{position:absolute;top:100%;left:0;margin-top:4px;background:var(--bg-primary);border:1px solid var(--border-color);border-radius:6px;box-shadow:0 4px 16px rgba(0,0,0,0.15);min-width:150px;z-index:1000;padding:4px;animation:dropdownSlideIn 0.15s ease}@keyframes dropdownSlideIn{from{opacity:0;transform:translateY(-5px)}to{opacity:1;transform:translateY(0)}}.dropdown-item{padding:8px 12px;cursor:pointer;border-radius:4px;font-size:13px;color:var(--text-primary);transition:background var(--transition-fast);user-select:none;white-space:nowrap}.dropdown-item:hover{background:var(--bg-tertiary)}.table-insert-content{padding:10px 0}.form-row{display:flex;gap:15px;margin-bottom:15px}.form-row .form-group{flex:1}.table-input{width:100%;padding:8px 12px;border:1px solid var(--border-color);border-radius:6px;background:var(--bg-secondary);color:var(--text-primary);font-size:14px;transition:all var(--transition-fast)}.table-input:focus{outline:none;border-color:var(--primary-color);box-shadow:0 0 0 3px rgba(99,102,241,0.1)}.table-preview-container{margin-top:15px}.table-preview-container label{display:block;margin-bottom:8px;font-size:14px;font-weight:500;color:var(--text-primary)}.table-preview-box{padding:15px;background:var(--bg-secondary);border:1px solid var(--border-color);border-radius:6px;overflow:auto}.table-preview{width:100%;border-collapse:collapse;font-size:12px}.table-preview td{border:1px solid var(--border-color);padding:6px;min-width:40px;height:30px;background:var(--bg-primary)}.format-painter-cursor{cursor:crosshair !important}.format-painter-cursor *{cursor:crosshair !important}