* { margin: 0; padding: 0; box-sizing: border-box; }
        :root {
            --bg-gradient-start: #667eea;
            --bg-gradient-end: #764ba2;
            --panel-bg: rgba(255, 255, 255, 0.92);
            --panel-border: rgba(255, 255, 255, 0.3);
            --text-primary: #1f2937;
            --text-secondary: #4b5563;
            --menu-bg: rgba(255, 255, 255, 0.7);
            --menu-hover-bg: rgba(79, 70, 229, 0.1);
            --dropdown-bg: white;
            --dropdown-border: #e5e7eb;
            --input-bg: white;
            --input-border: #e5e7eb;
            --tab-bg: #ffffff;
            --tab-inactive: #f9fafb;
            --status-bg: #f9fafb;
            --status-text: #4b5563;
            --toast-bg: #d1fae5;
            --toast-text: #059669;
            --toast-error-bg: #fee2e2;
            --toast-error-text: #dc2626;
            --accent: #4f46e5;
            --border-light: #e5e7eb;
            --modal-bg: white;
            --modal-overlay: rgba(0,0,0,0.5);
            --task-high: #ef4444;
            --task-mid: #f59e0b;
            --task-low: #10b981;
        }
        body.dark {
            --bg-gradient-start: #1e1b4b;
            --bg-gradient-end: #0f172a;
            --panel-bg: rgba(30, 41, 59, 0.95);
            --panel-border: rgba(51, 65, 85, 0.5);
            --text-primary: #e2e8f0;
            --text-secondary: #94a3b8;
            --menu-bg: rgba(30, 41, 59, 0.8);
            --menu-hover-bg: rgba(79, 70, 229, 0.2);
            --dropdown-bg: #1e293b;
            --dropdown-border: #334155;
            --input-bg: #0f172a;
            --input-border: #334155;
            --tab-bg: #1e293b;
            --tab-inactive: #0f172a;
            --status-bg: #1e293b;
            --status-text: #94a3b8;
            --toast-bg: #065f46;
            --toast-text: #a7f3d0;
            --toast-error-bg: #7f1d1d;
            --toast-error-text: #fecaca;
            --accent: #818cf8;
            --border-light: #334155;
            --modal-bg: #1e293b;
            --modal-overlay: rgba(0,0,0,0.7);
            --task-high: #f87171;
            --task-mid: #fbbf24;
            --task-low: #34d399;
        }
        body { font-family: 'Inter', 'Segoe UI', system-ui, monospace; background: linear-gradient(135deg, var(--bg-gradient-start) 0%, var(--bg-gradient-end) 100%); height: 100vh; display: flex; flex-direction: column; overflow: hidden; transition: background 0.3s ease; }
        .app-layout { display: flex; flex: 1; overflow: hidden; padding: 8px; gap: 0; }
        .side-panel-container { position: relative; display: flex; flex-shrink: 0; }
        .side-panel { width: 100%; background: var(--panel-bg); backdrop-filter: blur(10px); border-radius: 24px; box-shadow: 0 8px 32px rgba(0,0,0,0.1); display: flex; flex-direction: column; overflow: hidden; border: 1px solid var(--panel-border); transition: none; }
        .side-panel.hidden { display: none; }
        .resize-handle { width: 4px; cursor: ew-resize; background: transparent; transition: background 0.2s; margin: 0; }
        .resize-handle:hover { background: var(--accent); opacity: 0.5; }
        .panel-header { padding: 12px 16px; background: var(--menu-bg); border-bottom: 1px solid var(--border-light); font-weight: 600; display: flex; justify-content: space-between; align-items: center; color: var(--text-primary); }
        .draft-content { flex: 1; padding: 8px; overflow: hidden; }
        .converter-content, .backup-content, .task-content, .filetree-content, .table-json-content, .excel-formula-content, .stopwatch-content { flex: 1; padding: 8px; overflow: auto; }
        
        /* 秒表显示样式 */
        .stopwatch-display {
            font-size: 36px;
            font-family: 'Courier New', monospace;
            text-align: center;
            color: var(--text-primary);
            background: var(--input-bg);
            padding: 15px;
            border-radius: 12px;
            border: 1px solid var(--input-border);
            letter-spacing: 3px;
        }
        .draft-textarea { width: 100%; height: 100%; background: var(--input-bg); border: 1px solid var(--input-border); border-radius: 16px; padding: 12px; font-family: 'Fira Code', monospace; font-size: 13px; color: var(--text-primary); resize: none; outline: none; transition: 0.2s; overflow-y: auto; overflow-x: hidden; }
        .draft-textarea:focus { border-color: var(--accent); box-shadow: 0 0 0 2px rgba(79, 70, 229, 0.2); }
        .converter-group { margin-bottom: 20px; }
        .converter-label { font-size: 12px; font-weight: 600; margin-bottom: 8px; display: block; color: var(--text-secondary); }
        .converter-input { width: 100%; padding: 10px 12px; background: var(--input-bg); border: 1px solid var(--input-border); border-radius: 12px; color: var(--text-primary); font-family: monospace; font-size: 13px; outline: none; transition: 0.2s; }
        .converter-input:focus { border-color: var(--accent); box-shadow: 0 0 0 2px rgba(79, 70, 229, 0.2); }
        .converter-buttons { display: flex; gap: 8px; margin-top: 12px; flex-wrap: wrap; }
        .converter-btn { background: var(--menu-bg); border: 1px solid var(--input-border); padding: 6px 12px; border-radius: 30px; font-size: 12px; cursor: pointer; transition: 0.2s; color: var(--text-primary); }
        .converter-btn:hover { background: var(--menu-hover-bg); color: var(--text-primary); transform: translateY(-1px); }
        .converter-btn-primary { background: var(--accent); color: white; border: none; }
        .converter-btn-primary:hover { background: #4f46e5; color: white; } /* 使用固定颜色确保可读性 */
        .converter-result { margin-top: 12px; padding: 10px; background: var(--menu-bg); border-radius: 12px; display: flex; justify-content: space-between; align-items: center; gap: 8px; flex-wrap: wrap; }
        .converter-result-text { flex: 1; user-select: text; cursor: text; font-family: monospace; font-size: 12px; line-height: 1.5; white-space: pre-wrap; }
        .json-sort-textarea { height: 120px; resize: vertical; min-height: 80px; }
        .sort-rule-item { display: flex; gap: 8px; margin-bottom: 8px; align-items: center; }
        .sort-rule-item input, .sort-rule-item select { margin: 0; }
        .remove-rule-btn { max-height: 32px; }
        .converter-result-full { margin-top: 12px; padding: 10px; background: var(--menu-bg); border-radius: 12px; display: flex; flex-direction: column; gap: 8px; }
        .converter-result-textarea { width: 100%; height: 200px; padding: 10px; background: var(--input-bg); border: 1px solid var(--input-border); border-radius: 8px; font-family: monospace; font-size: 12px; line-height: 1.5; resize: vertical; min-height: 100px; }
        .copy-result-btn { background: var(--input-bg); border: 1px solid var(--input-border); border-radius: 20px; padding: 4px 10px; font-size: 11px; cursor: pointer; transition: 0.2s; }
        .copy-result-btn:hover { background: var(--menu-hover-bg); }
        .backup-info { background: var(--menu-bg); border-radius: 12px; padding: 12px; margin-bottom: 16px; font-size: 12px; color: var(--text-secondary); }
        .backup-actions { display: flex; gap: 12px; flex-wrap: wrap; margin-bottom: 20px; }
        .backup-btn { flex: 1; background: var(--accent); border: none; padding: 10px; border-radius: 30px; font-size: 13px; font-weight: 500; cursor: pointer; color: white; transition: 0.2s; text-align: center; }
        .backup-btn:hover { opacity: 0.85; transform: translateY(-1px); }
        .backup-btn-secondary { background: var(--menu-bg); color: var(--text-primary); border: 1px solid var(--input-border); }
        .restore-area { margin-top: 16px; }
        .restore-label { font-size: 12px; font-weight: 600; margin-bottom: 8px; display: block; color: var(--text-secondary); }
        .file-input { width: 100%; padding: 10px; background: var(--input-bg); border: 1px solid var(--input-border); border-radius: 12px; font-size: 13px; color: var(--text-primary); cursor: pointer; }
        .history-list { flex: 1; overflow-y: auto; padding: 8px 0; }
        .history-item { padding: 8px 16px 8px 20px; cursor: pointer; display: flex; align-items: center; gap: 10px; font-size: 13px; border-left: 3px solid transparent; transition: all 0.15s; color: var(--text-secondary); }
        .history-item:hover { background: rgba(79, 70, 229, 0.1); }
        .history-name { flex: 1; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
        .history-restore { opacity: 0; font-size: 12px; color: var(--accent); margin-left: 4px; }
        .history-delete { opacity: 0; font-size: 14px; color: #ef4444; cursor: pointer; margin-left: 6px; padding: 0 4px; border-radius: 4px; }
        .history-delete:hover { background: rgba(239, 68, 68, 0.2); }
        .history-item:hover .history-restore, .history-item:hover .history-delete { opacity: 1; }
        .bookmark-list-content { flex: 1; display: flex; flex-direction: column; padding: 12px; overflow: hidden; }
        .bookmark-list-header { padding-bottom: 12px; border-bottom: 1px solid var(--border-light); margin-bottom: 12px; }
        .bookmark-list-container { flex: 1; overflow-y: auto; }
        .bookmark-item { padding: 10px 12px; margin-bottom: 8px; background: var(--input-bg); border-radius: 12px; border: 1px solid var(--input-border); cursor: pointer; transition: all 0.2s; display: flex; flex-direction: column; }
        .bookmark-item:hover { background: var(--menu-hover-bg); border-color: var(--accent); transform: translateY(-1px); }
        .bookmark-item-title { font-weight: 600; margin-bottom: 4px; color: var(--text-primary); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
        .bookmark-item-url { font-size: 11px; color: var(--text-secondary); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
        .bookmark-item-blank { font-size: 10px; color: var(--accent); margin-top: 4px; align-self: flex-start; background: rgba(79, 70, 229, 0.1); padding: 2px 6px; border-radius: 10px; }
        .history-clear { font-size: 12px; background: #f3f4f6; border: none; color: #ef4444; cursor: pointer; padding: 4px 12px; border-radius: 30px; }
        body.dark .history-clear { background: #334155; color: #f87171; }
        .history-clear:hover { background: #fee2e2; }
        body.dark .history-clear:hover { background: #7f1d1d; }
        /* 任务管理样式 */
        .task-add { display: flex; gap: 8px; margin-bottom: 16px; flex-wrap: wrap; }
        .task-add input, .task-add select, .task-add button { padding: 8px 12px; border-radius: 30px; border: 1px solid var(--input-border); background: var(--input-bg); color: var(--text-primary); font-size: 13px; outline: none; }
        .task-add input:focus, .task-add select:focus { border-color: var(--accent); }
        .task-add input { flex: 2; min-width: 120px; }
        .task-add select { flex: 1; }
        .task-add button { background: var(--accent); color: white; border: none; cursor: pointer; }
        .task-list { list-style: none; }
        .task-item { display: flex; align-items: center; gap: 10px; padding: 10px 0; border-bottom: 1px solid var(--border-light); flex-wrap: wrap; }
        .task-check { width: 20px; height: 20px; cursor: pointer; accent-color: var(--accent); }
        .task-title { flex: 2; min-width: 120px; font-size: 13px; cursor: pointer; padding: 4px 6px; border-radius: 8px; transition: 0.1s; }
        .task-title:hover { background: var(--menu-hover-bg); }
        .task-title.completed { text-decoration: line-through; opacity: 0.6; }
        .task-title.editing { background: var(--input-bg); border: 1px solid var(--accent); cursor: text; text-decoration: none; opacity: 1; }
        .task-priority { width: 80px; }
        .priority-select { width: 100%; padding: 4px 6px; border-radius: 30px; border: 1px solid var(--input-border); background: var(--input-bg); color: var(--text-primary); font-size: 12px; cursor: pointer; }
        .priority-badge { font-size: 11px; padding: 2px 8px; border-radius: 30px; font-weight: 500; display: inline-block; cursor: pointer; }
        .priority-badge { font-size: 11px; padding: 2px 8px; border-radius: 30px; font-weight: 500; display: inline-block; cursor: pointer; }
        .priority-high { background: var(--task-high); color: white; }
        .priority-mid { background: var(--task-mid); color: white; }
        .priority-low { background: var(--task-low); color: white; }
        .task-date { width: 90px; }
        .date-input { width: 100%; padding: 4px 6px; border-radius: 30px; border: 1px solid var(--input-border); background: var(--input-bg); color: var(--text-primary); font-size: 12px; font-family: monospace; text-align: center; cursor: pointer; }
        .date-input:focus { border-color: var(--accent); outline: none; }
        .date-display { font-size: 12px; color: var(--text-secondary); text-align: center; cursor: pointer; padding: 4px 6px; border-radius: 8px; }
        .date-display:hover { background: var(--menu-hover-bg); }
        .task-actions { display: flex; gap: 6px; }
        .task-actions button { background: none; border: none; cursor: pointer; font-size: 14px; color: var(--text-secondary); padding: 0 4px; }
        .task-actions button:hover { color: var(--accent); }
        .task-actions .delete-btn:hover { color: #ef4444; }
        .filter-bar { display: flex; gap: 8px; margin-bottom: 16px; flex-wrap: wrap; }
        .filter-btn { padding: 4px 12px; border-radius: 30px; font-size: 12px; background: var(--menu-bg); border: 1px solid var(--input-border); cursor: pointer; color: var(--text-primary); }
        .filter-btn.active { background: var(--accent); color: white; border-color: var(--accent); }
        /* 文件树样�?*/
        .filetree-header { display: flex; justify-content: space-between; align-items: center; padding: 8px 0; margin-bottom: 12px; gap: 8px; }
        .filetree-header button { background: var(--accent); color: white; border: none; padding: 6px 12px; border-radius: 30px; font-size: 12px; cursor: pointer; }
        .tree { list-style: none; padding-left: 0; }
        .tree li { list-style: none; white-space: nowrap; }
        .tree-node { padding: 4px 0; cursor: pointer; display: flex; align-items: center; gap: 6px; font-size: 13px; border-radius: 8px; transition: background 0.1s; }
        .tree-node:hover { background: var(--menu-hover-bg); }
        .tree-node .icon { font-size: 14px; width: 20px; text-align: center; }
        .tree-node .name { overflow: hidden; text-overflow: ellipsis; }
        .tree-node.folder .name { font-weight: 500; }
        .tree-children { padding-left: 20px; display: none; }
        .tree-children.expanded { display: block; }
        .loading { font-style: italic; color: var(--text-secondary); }
        .main-area { flex: 1; display: flex; flex-direction: column; overflow: hidden; background: var(--panel-bg); backdrop-filter: blur(8px); border-radius: 24px; border: 1px solid var(--panel-border); margin-left: 4px; position: relative; }
        .menu-bar { background: var(--menu-bg); display: flex; flex-wrap: wrap; align-items: center; padding: 8px 16px; border-bottom: 1px solid var(--border-light); gap: 8px; border-radius: 24px 24px 0 0; }
        .menu-item { padding: 6px 14px; cursor: pointer; border-radius: 30px; font-weight: 500; transition: all 0.2s; position: relative; color: var(--text-primary); }
        .menu-item:hover { background: var(--menu-hover-bg); color: var(--accent); }
        .menu-divider { width: 1px; height: 24px; background: var(--border-light); margin: 0 4px; }
        .dropdown-menu { position: absolute; top: 100%; left: 0; background: var(--dropdown-bg); border: 1px solid var(--dropdown-border); border-radius: 16px; box-shadow: 0 12px 28px rgba(0,0,0,0.15); min-width: 210px; z-index: 1000; display: none; flex-direction: column; padding: 8px 0; backdrop-filter: blur(8px); }
        .dropdown-menu.show { display: flex; }
        .dropdown-item { padding: 10px 20px; cursor: pointer; font-size: 13px; color: var(--text-primary); transition: 0.1s; }
        .dropdown-item:hover { background: rgba(79, 70, 229, 0.1); }
        .dropdown-divider { height: 1px; background: var(--border-light); margin: 6px 0; }
        .right-controls { display: flex; align-items: center; gap: 10px; margin-left: auto; }
        .theme-toggle, .menu-wrap-toggle, .menu-search-toggle { display: flex; align-items: center; gap: 8px; background: var(--input-bg); padding: 5px 14px; border-radius: 30px; font-size: 12px; cursor: pointer; border: 1px solid var(--input-border); color: var(--text-primary); }
        .lang-select-inline { background: var(--input-bg); border: 1px solid var(--input-border); padding: 5px 10px; border-radius: 30px; font-size: 12px; cursor: pointer; color: var(--text-primary); }
        /* 紧凑的查找替换面�?*/
        .search-panel { background: var(--menu-bg); border-bottom: 1px solid var(--border-light); padding: 8px 16px; display: flex; flex-wrap: wrap; align-items: center; gap: 8px; }
        .search-group { display: flex; align-items: center; gap: 6px; background: var(--input-bg); padding: 4px 12px; border-radius: 30px; border: 1px solid var(--input-border); }
        .search-input { border: none; background: transparent; padding: 6px 0; width: 160px; outline: none; font-family: monospace; font-size: 12px; color: var(--text-primary); }
        .regex-check, .case-check, .dotall-check, .capture-group-check { display: flex; align-items: center; gap: 4px; margin-left: 4px; background: var(--menu-bg); padding: 2px 8px; border-radius: 30px; font-size: 11px; }
        .match-stats { font-size: 11px; background: rgba(79, 70, 229, 0.15); padding: 2px 10px; border-radius: 30px; color: var(--accent); font-weight: 500; }
        .btn-sm { background: var(--input-bg); border: 1px solid var(--input-border); padding: 4px 12px; border-radius: 30px; cursor: pointer; font-size: 11px; font-weight: 500; transition: 0.2s; color: var(--text-primary); }
        .btn-sm:hover { background: var(--menu-hover-bg); transform: translateY(-1px); }
        .btn-primary { background: linear-gradient(135deg, #4f46e5, #7c3aed); border: none; color: white; }
        .btn-primary:hover { background: linear-gradient(135deg, #4338ca, #6d28d9); }
        .search-actions { display: flex; align-items: center; gap: 6px; }
        .tabs-container { background: var(--tab-inactive); display: flex; overflow-x: auto; border-bottom: 1px solid var(--border-light); min-height: 42px; padding: 0 12px; gap: 2px; }
        .tab { background: var(--tab-bg); color: var(--text-secondary); padding: 8px 18px; font-size: 12px; border-right: 1px solid var(--border-light); display: flex; align-items: center; gap: 8px; cursor: pointer; white-space: nowrap; border-top-left-radius: 12px; border-top-right-radius: 12px; user-select: none; transition: background 0.1s; }
        .tab.active { background: var(--panel-bg); color: var(--accent); border-top: 2px solid var(--accent); font-weight: 500; }
        .tab.dragging { opacity: 0.4; }
        .tab-modified { color: #f59e0b; font-weight: bold; margin-left: 2px; }
        .close-tab { background: none; border: none; color: var(--text-secondary); cursor: pointer; font-size: 16px; width: 24px; border-radius: 20px; margin-left: 4px; }
        .close-tab:hover { background: rgba(0,0,0,0.1); color: #ef4444; }
        .editor-area { flex: 1; position: relative; overflow: hidden; }
        .editor-wrapper { position: absolute; top:0; left:0; right:0; bottom:0; display: none; }
        .editor-wrapper.active-editor { display: block; }
        .CodeMirror { height: 100%; font-size: 14px; font-family: 'Fira Code', monospace; }
        
        /* 使光标更明显 - 使用蓝色 */
        .CodeMirror-cursor {
            border-left: 2px solid #4f46e5 !important; /* 蓝色 */
            border-right: none;
            margin-left: -1px;
            width: 1px;
            animation: blink 1s infinite;
        }
        
        /* 高亮显示光标所在行 */
        .CodeMirror-activeline-background {
            background: rgba(79, 70, 229, 0.1) !important;
        }
        
        @keyframes blink {
            0% { opacity: 1; }
            50% { opacity: 0.6; }
            100% { opacity: 1; }
        }
        
        /* 在黑暗模式下使用更亮的蓝色 */
        body.dark .CodeMirror-cursor {
            border-left: 2px solid #818cf8 !important; /* 亮蓝色 */
        }
        
        body.dark .CodeMirror-activeline-background {
            background: rgba(129, 140, 248, 0.1) !important;
        }
        .bookmark-frame-container { position: absolute; top:0; left:0; right:0; bottom:0; display: none; flex-direction: column; background: var(--input-bg); }
        .bookmark-frame-container.active { display: flex; }
        .bookmark-frame-header { padding: 4px 12px; background: var(--menu-bg); border-bottom: 1px solid var(--border-light); display: flex; justify-content: space-between; align-items: center; font-size: 12px; }
        .bookmark-frame-title { flex:1; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
        .bookmark-frame-refresh { background: none; border: none; cursor: pointer; margin-right: 8px; color: var(--text-secondary); }
        .bookmark-frame-refresh:hover { color: var(--accent); }
        .bookmark-iframe { flex:1; border: none; width: 100%; background: white; }
        .status-bar { background: var(--status-bg); padding: 6px 20px; display: flex; gap: 28px; border-top: 1px solid var(--border-light); font-size: 12px; font-family: monospace; border-radius: 0 0 24px 24px; color: var(--status-text); }
        .status-item { display: flex; gap: 8px; align-items: center; }
        .toast-msg { margin-left: auto; color: var(--toast-text); background: var(--toast-bg); padding: 2px 12px; border-radius: 30px; font-size: 11px; }
        .cm-match-highlight { background-color: #fef3c7 !important; border-radius: 2px; }
        body.dark .cm-match-highlight { background-color: #92400e !important; }
        .context-menu { position: fixed; background: var(--dropdown-bg); border: 1px solid var(--dropdown-border); border-radius: 12px; box-shadow: 0 8px 20px rgba(0,0,0,0.2); z-index: 10000; min-width: 180px; display: flex; flex-direction: column; padding: 6px 0; backdrop-filter: blur(4px); }
        .context-menu-item { padding: 8px 20px; font-size: 13px; cursor: pointer; color: var(--text-primary); transition: background 0.1s; }
        .context-menu-item:hover { background: var(--menu-hover-bg); }
        .context-menu-divider { height: 1px; background: var(--border-light); margin: 4px 0; }
        .modal-overlay { position: fixed; top:0; left:0; width:100%; height:100%; background: var(--modal-overlay); z-index: 20000; display: flex; align-items: center; justify-content: center; visibility: hidden; opacity:0; transition: 0.2s; }
        .modal-overlay.active { visibility: visible; opacity:1; }
        .modal-container { background: var(--modal-bg); border-radius: 24px; width: 650px; max-width: 90%; height: 70vh; display: flex; flex-direction: column; box-shadow: 0 20px 35px rgba(0,0,0,0.3); border: 1px solid var(--border-light); }
        .modal-header { padding: 16px 20px; border-bottom: 1px solid var(--border-light); font-weight: 600; display: flex; justify-content: space-between; align-items: center; }
        .modal-body { flex: 1; padding: 12px; overflow: hidden; display: flex; flex-direction: column; }
        .modal-footer { padding: 12px 20px; border-top: 1px solid var(--border-light); display: flex; justify-content: flex-end; gap:12px; }
        .json-editor { flex: 1; border: 1px solid var(--input-border); border-radius: 12px; overflow: hidden; height: 200px; }
/* MarkdownԤ����ʽ */
.markdown-preview {
    padding: 24px !important;
    line-height: 1.6;
    color: var(--text-primary);
    font-family: 'Inter', 'Segoe UI', system-ui, sans-serif;
    overflow-y: auto;
    max-width: 100%;
    margin: 0 auto;
}

.markdown-preview > *:first-child {
    margin-top: 0;
}

.markdown-preview > *:last-child {
    margin-bottom: 0;
}

.markdown-preview h1,
.markdown-preview h2,
.markdown-preview h3,
.markdown-preview h4,
.markdown-preview h5,
.markdown-preview h6 {
    margin: 24px 0 16px 0;
    font-weight: 600;
    line-height: 1.25;
    color: var(--text-primary);
}

.markdown-preview h1 {
    font-size: 2em;
    border-bottom: 1px solid var(--border-light);
    padding-bottom: 0.3em;
    margin-bottom: 1em;
}

.markdown-preview h2 {
    font-size: 1.5em;
    border-bottom: 1px solid var(--border-light);
    padding-bottom: 0.3em;
    margin-bottom: 1em;
}

.markdown-preview h3 {
    font-size: 1.25em;
}

.markdown-preview h4 {
    font-size: 1em;
}

.markdown-preview h5 {
    font-size: 0.875em;
}

.markdown-preview h6 {
    font-size: 0.85em;
    color: var(--text-secondary);
}

.markdown-preview p {
    margin: 16px 0;
    color: var(--text-primary);
}

.markdown-preview strong {
    font-weight: 600;
    color: var(--text-primary);
}

.markdown-preview em {
    font-style: italic;
    color: var(--text-primary);
}

.markdown-preview del {
    text-decoration: line-through;
    color: var(--text-secondary);
}

.markdown-preview a {
    color: var(--accent);
    text-decoration: underline;
    transition: color 0.2s;
}

.markdown-preview a:hover {
    color: var(--accent-hover);
}

.markdown-preview ul,
.markdown-preview ol {
    margin: 16px 0;
    padding-left: 2em;
}

.markdown-preview ul {
    list-style-type: disc;
}

.markdown-preview ol {
    list-style-type: decimal;
}

.markdown-preview li {
    margin: 8px 0;
    padding-left: 0.5em;
}

.markdown-preview li::marker {
    color: var(--accent);
}

.markdown-preview ul ul,
.markdown-preview ul ol,
.markdown-preview ol ol,
.markdown-preview ol ul {
    margin: 0;
}

.markdown-preview blockquote {
    margin: 20px 0;
    padding: 16px 20px;
    border-left: 4px solid var(--accent);
    background-color: rgba(79, 70, 229, 0.05);
    color: var(--text-secondary);
    font-style: italic;
    border-radius: 0 8px 8px 0;
}

.markdown-preview blockquote > *:first-child {
    margin-top: 0;
}

.markdown-preview blockquote > *:last-child {
    margin-bottom: 0;
}

.markdown-preview pre {
    background: var(--code-bg, --input-bg);
    border-radius: 12px;
    padding: 16px;
    overflow-x: auto;
    margin: 20px 0;
    font-size: 0.875em;
    line-height: 1.5;
    border: 1px solid var(--border-light);
}

.markdown-preview code {
    font-family: 'Fira Code', 'Consolas', 'Monaco', monospace;
    background: var(--code-inline-bg, --input-bg);
    color: var(--code-text, --text-primary);
    padding: 0.2em 0.4em;
    border-radius: 6px;
    font-size: 0.875em;
    border: 1px solid var(--border-light);
}

.markdown-preview pre code {
    background: none !important;
    color: inherit;
    padding: 0;
    border: none;
    font-size: inherit;
}

.markdown-preview hr {
    height: 1px;
    border: 0;
    background-color: var(--border-light);
    margin: 24px 0;
}

.markdown-preview img {
    max-width: 100%;
    height: auto;
    border-radius: 8px;
    margin: 12px 0;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
}

.markdown-preview table {
    width: 100%;
    border-collapse: collapse;
    margin: 20px 0;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
}

.markdown-preview th,
.markdown-preview td {
    padding: 12px 16px;
    text-align: left;
    border-bottom: 1px solid var(--border-light);
}

.markdown-preview th {
    background-color: var(--menu-bg);
    font-weight: 600;
    color: var(--text-primary);
}

.markdown-preview tr:nth-child(even) {
    background-color: var(--table-row-bg, --input-bg);
}

.markdown-preview tr:last-child td {
    border-bottom: none;
}

/* 查找替换历史记录样式 */
.search-input-container { position: relative; flex: 1; margin: 0 10px; }
.history-dropdown-container { position: absolute; top: 100%; left: 0; right: 0; z-index: 1000; }

/* 标签页右键菜单样式 */
.tab-context-menu { position: fixed; background: var(--dropdown-bg); border: 1px solid var(--dropdown-border); border-radius: 12px; box-shadow: 0 8px 20px rgba(0,0,0,0.2); z-index: 10000; min-width: 180px; display: flex; flex-direction: column; padding: 6px 0; backdrop-filter: blur(4px); }
.tab-context-menu-item { padding: 8px 20px; font-size: 13px; cursor: pointer; color: var(--text-primary); transition: background 0.1s; }
.tab-context-menu-item:hover { background: var(--menu-hover-bg); }
.tab-context-menu-divider { height: 1px; background: var(--border-light); margin: 4px 0; }