:root {
            --primary-color: #2c7da0;
            --secondary-color: #a9d6e5;
            --accent-color: #01497c;
            --light-gray: #f8f9fa;
            --border-color: #eaeaea;
            --text-color: #333;
            --text-muted: #6c757d;
            --success-color: #28a745;
            --warning-color: #ffc107;
            --danger-color: #dc3545;
            --finance-color: #20c997;
            --stock-color: #0d6efd;
            --bond-color: #6f42c1;
            --cash-color: #fd7e14;
        }
        
        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            background-color: white;
            color: var(--text-color);
            line-height: 1.6;
        }
        
        .container {
            max-width: 1200px;
        }
        
        /* Header Styles */
        .navbar {
            background-color: white;
            box-shadow: 0 2px 4px rgba(0,0,0,0.05);
            border-bottom: 1px solid var(--border-color);
            padding: 0.75rem 0;
        }
        
        .navbar-brand {
            font-weight: 700;
            color: var(--primary-color);
            font-size: 1.5rem;
        }
        
        .nav-link {
            color: #555;
            font-weight: 500;
            padding: 0.5rem 1rem;
            border-radius: 6px;
        }
        
        .nav-link:hover, .nav-link.active {
            color: var(--primary-color);
            background-color: rgba(44, 125, 160, 0.1);
        }
        
        .page-header {
            background: linear-gradient(135deg, rgba(169, 214, 229, 0.4) 0%, rgba(44, 125, 160, 0.4) 100%);
            padding: 1.5rem 0;
            margin-bottom: 2rem;
            border-bottom: 1px solid rgba(44, 125, 160, 0.2);
            position: relative;
            overflow: hidden;
        } 
        
        .page-header::before {
            content: "";
            position: absolute;
            top: -50%;
            left: -50%;
            width: 200%;
            height: 200%;
            background-image: radial-gradient(rgba(255,255,255,0.8) 1px, transparent 1px);
            background-size: 20px 20px;
            opacity: 0.3;
            transform: rotate(30deg);
        }
        
        .breadcrumb {
            background-color: transparent;
            padding: 0.5rem 0;
            margin-bottom: 0.5rem;
        }
        
        .breadcrumb-item a {
            color: var(--text-muted);
            text-decoration: none;
        }
        
        .breadcrumb-item.active {
            color: var(--text-color);
        }
        
        /* Tool Card Styles */
        .tool-card {
            background: white;
            border-radius: 8px;
            border: 1px solid var(--border-color);
            padding: 2rem;
            margin-bottom: 1.5rem;
            box-shadow: 0 2px 10px rgba(0,0,0,0.05);
        }
        
        .tool-header {
            position: relative;
            padding-bottom: 15px;
            margin-bottom: 25px;
            border-bottom: 1px solid var(--border-color);
        }
        
        .tool-header h2 {
            font-weight: 600;
            color: var(--primary-color);
            margin-bottom: 0.5rem;
        }
        
        /* Form Styles */
        .form-label {
            font-weight: 600;
            margin-bottom: 0.5rem;
            color: var(--text-color);
        }
        
        .form-control {
            border: 1px solid #ddd;
            border-radius: 6px;
            padding: 0.75rem;
            transition: all 0.3s;
        }
        
        .form-control:focus {
            border-color: var(--primary-color);
            box-shadow: 0 0 0 3px rgba(44, 125, 160, 0.15);
        }
        
        .btn-primary {
            background-color: var(--primary-color);
            border-color: var(--primary-color);
            font-weight: 600;
            padding: 0.75rem 1.5rem;
            border-radius: 6px;
            transition: all 0.3s;
        }
        
        .btn-primary:hover {
            background-color: var(--accent-color);
            border-color: var(--accent-color);
            transform: translateY(-1px);
        }
        
        .btn-outline-secondary {
            font-weight: 600;
            border-radius: 6px;
            padding: 0.75rem 1.5rem;
        }
        
        .btn-success {
            background-color: var(--success-color);
            border-color: var(--success-color);
        }
        
        /* Asset Table */
        .asset-table {
            width: 100%;
            border-collapse: separate;
            border-spacing: 0;
            margin: 1.5rem 0;
        }
        
        .asset-table th {
            background-color: var(--light-gray);
            font-weight: 600;
            padding: 1rem;
            text-align: left;
            border-bottom: 2px solid var(--border-color);
        }
        
        .asset-table td {
            padding: 1rem;
            border-bottom: 1px solid var(--border-color);
            vertical-align: middle;
        }
        
        .asset-table tbody tr:hover {
            background-color: rgba(44, 125, 160, 0.03);
        }
        
        .asset-table .form-control {
            padding: 0.5rem;
            height: auto;
        }
        
        .asset-category {
            display: inline-block;
            padding: 0.25rem 0.75rem;
            border-radius: 20px;
            font-size: 0.85rem;
            font-weight: 600;
        }
        
        .category-stocks {
            background-color: rgba(13, 110, 253, 0.1);
            color: var(--stock-color);
        }
        
        .category-bonds {
            background-color: rgba(111, 66, 193, 0.1);
            color: var(--bond-color);
        }
        
        .category-cash {
            background-color: rgba(253, 126, 20, 0.1);
            color: var(--cash-color);
        }
        
        .category-alternative {
            background-color: rgba(32, 201, 151, 0.1);
            color: var(--finance-color);
        }
        
        .category-real-estate {
            background-color: rgba(220, 53, 69, 0.1);
            color: var(--danger-color);
        }
        
        /* Action buttons */
        .action-btn {
            background-color: white;
            border: 1px solid var(--border-color);
            border-radius: 6px;
            padding: 0.5rem 1rem;
            margin-left: 0.5rem;
            transition: all 0.3s;
            color: var(--text-color);
        }
        
        .action-btn:hover {
            background-color: var(--light-gray);
            color: var(--primary-color);
        }
        
        /* Result Area */
        .result-container {
            background-color: var(--light-gray);
            border-radius: 6px;
            padding: 1.5rem;
            margin-top: 1.5rem;
            position: relative;
            border: 1px solid var(--border-color);
        }
        
        .result-title {
            font-weight: 600;
            margin-bottom: 0.75rem;
            color: var(--primary-color);
        }
        
        .summary-card {
            background: white;
            border-radius: 8px;
            padding: 1.5rem;
            border: 1px solid var(--border-color);
            margin-bottom: 1.5rem;
            box-shadow: 0 2px 4px rgba(0,0,0,0.05);
        }
        
        .summary-value {
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--primary-color);
            margin-bottom: 0.5rem;
        }
        
        .summary-label {
            color: var(--text-muted);
            font-size: 0.9rem;
        }
        
        .allocation-discrepancy {
            display: inline-block;
            padding: 0.25rem 0.75rem;
            border-radius: 4px;
            font-weight: 600;
            font-size: 0.9rem;
        }
        
        .discrepancy-under {
            background-color: rgba(40, 167, 69, 0.1);
            color: var(--success-color);
        }
        
        .discrepancy-over {
            background-color: rgba(220, 53, 69, 0.1);
            color: var(--danger-color);
        }
        
        .rebalance-action {
            display: inline-block;
            padding: 0.5rem 1rem;
            border-radius: 4px;
            font-weight: 600;
            font-size: 0.9rem;
            margin: 0.25rem;
        }
        
        .action-buy {
            background-color: rgba(40, 167, 69, 0.1);
            color: var(--success-color);
            border-left: 3px solid var(--success-color);
        }
        
        .action-sell {
            background-color: rgba(220, 53, 69, 0.1);
            color: var(--danger-color);
            border-left: 3px solid var(--danger-color);
        }
        
        .action-hold {
            background-color: rgba(108, 117, 125, 0.1);
            color: var(--text-muted);
            border-left: 3px solid var(--text-muted);
        }
        
        /* Chart Container */
        .chart-container {
            position: relative;
            height: 400px;
            width: 100%;
            margin: 2rem 0;
        }
        
        .chart-small {
            height: 250px;
        }
        
        /* Content Sections */
        .section-title {
            font-weight: 600;
            margin-bottom: 1rem;
            color: var(--primary-color);
            padding-bottom: 0.5rem;
            border-bottom: 1px solid var(--border-color);
        }
        
        .usage-step {
            display: flex;
            margin-bottom: 1.5rem;
            align-items: flex-start;
        }
        
        .step-number {
            width: 28px;
            height: 28px;
            background-color: var(--primary-color);
            color: white;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            margin-right: 1rem;
            flex-shrink: 0;
            font-weight: 600;
            font-size: 0.9rem;
        }
        
        .info-box {
            background-color: rgba(44, 125, 160, 0.05);
            border-left: 3px solid var(--primary-color);
            padding: 1rem;
            border-radius: 0 4px 4px 0;
            margin: 1.5rem 0;
        }
        
        .finance-box {
            background-color: rgba(32, 201, 151, 0.05);
            border-left: 3px solid var(--finance-color);
            padding: 1rem;
            border-radius: 0 4px 4px 0;
            margin: 1.5rem 0;
        }
        
        /* Related Tools */
        .related-tools {
            background-color: white;
            border-radius: 8px;
            border: 1px solid var(--border-color); 
            margin-bottom: 1.5rem;
        }
        
        .related-title {
            font-weight: 600;
            margin-bottom: 1.25rem;
            padding-bottom: 0.75rem; 
            color: var(--primary-color);
        }
        
        .related-tool {
            display: flex;
            align-items: center;
            padding: 0.75rem 0;
            border-bottom: 1px solid var(--border-color);
            transition: background-color 0.3s;
        }
        
        .related-tool:hover {
            background-color: var(--light-gray);
        }
        
        .related-tool:last-child {
            border-bottom: none;
        }
        
        .related-icon {
            width: 36px;
            height: 36px;
            border-radius: 6px;
            background-color: rgba(44, 125, 160, 0.1);
            display: flex;
            align-items: center;
            justify-content: center;
            margin-right: 1rem;
            color: var(--primary-color);
        }
        
        /* Portfolio templates */
        .portfolio-templates {
            display: flex;
            flex-wrap: wrap;
            gap: 0.75rem;
            margin: 1rem 0;
        }
        
        .template-btn {
            background-color: rgba(44, 125, 160, 0.1);
            border: 1px solid rgba(44, 125, 160, 0.2);
            border-radius: 6px;
            padding: 0.75rem 1rem;
            font-size: 0.9rem;
            color: var(--primary-color);
            cursor: pointer;
            transition: all 0.2s;
            flex: 1;
            min-width: 150px;
            text-align: center;
        }
        
        .template-btn:hover {
            background-color: rgba(44, 125, 160, 0.2);
            transform: translateY(-2px);
        }
        
        /* Toast notifications */
        .toast-container {
            position: fixed;
            bottom: 20px;
            right: 20px;
            z-index: 1050;
        }
        
        /* Footer */
        .footer {
            background-color: var(--light-gray); 
            margin-top: 3rem;
            border-top: 1px solid var(--border-color);
        }
        
        /* Responsive Adjustments */
        @media (max-width: 768px) {
            .tool-card {
                padding: 1.5rem;
            }
            
            .asset-table {
                display: block;
                overflow-x: auto;
            }
        }
        
        /* Calculation steps */
        .calculation-step {
            margin-bottom: 1.5rem;
            padding-bottom: 1.5rem;
            border-bottom: 1px dashed var(--border-color);
        }
        
        .step-title {
            font-weight: 600;
            color: var(--finance-color);
            margin-bottom: 0.5rem;
        }
        
        /* Rebalancing summary */
        .rebalancing-summary {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 1.5rem;
            margin: 1.5rem 0;
        }
        
        .summary-item {
            background: white;
            border-radius: 6px;
            padding: 1.25rem;
            border: 1px solid var(--border-color);
            box-shadow: 0 2px 4px rgba(0,0,0,0.05);
        }
        
        /* Asset color coding */
        .asset-color-sample {
            width: 16px;
            height: 16px;
            border-radius: 50%;
            display: inline-block;
            margin-right: 8px;
        }
        
        .color-stocks {
            background-color: var(--stock-color);
        }
        
        .color-bonds {
            background-color: var(--bond-color);
        }
        
        .color-cash {
            background-color: var(--cash-color);
        }
        
        .color-alternative {
            background-color: var(--finance-color);
        }
        
        .color-real-estate {
            background-color: var(--danger-color);
        }
        
        /* Ad container styles (新增) */
        .ad-container {
            margin-bottom: 1.5rem;
        }
        
        .ad-label {
            font-size: 0.8rem;
            color: var(--text-muted);
            text-transform: uppercase;
            margin-bottom: 0.5rem;
        }
        
        .ad-placeholder {
            background-color: var(--light-gray);
            border: 2px dashed var(--border-color);
            border-radius: 8px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--text-muted);
        }
        
        /* Social icons styles (新增) */
        .social-icons {
            display: flex;
            gap: 0.75rem;
            margin-top: 1rem;
        }
        
        .social-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 36px;
            height: 36px;
            background-color: rgba(44, 125, 160, 0.1);
            color: var(--primary-color);
            border-radius: 50%;
            text-decoration: none;
            transition: all 0.3s;
        }
        
        .social-icon:hover {
            background-color: var(--primary-color);
            color: white;
            transform: translateY(-2px);
        }
        
        /* 虚拟滚动样式 (新增) */
        .virtual-scroll-container {
            max-height: 400px;
            overflow-y: auto;
            border: 1px solid var(--border-color);
            border-radius: 6px;
        }
        
        .virtual-scroll-content {
            position: relative;
        }
        
        /* 复制粘贴功能样式 (新增) */
        .row-actions {
            display: flex;
            gap: 0.5rem;
        }
        
        .row-action-btn {
            width: 32px;
            height: 32px;
            display: flex;
            align-items: center;
            justify-content: center;
            border: 1px solid var(--border-color);
            border-radius: 4px;
            background: white;
            cursor: pointer;
            transition: all 0.2s;
        }
        
        .row-action-btn:hover {
            background-color: var(--light-gray);
            border-color: var(--primary-color);
            color: var(--primary-color);
        }
        
        /* 移动端优化样式 (新增) */
        @media (max-width: 576px) {
            .mobile-optimized-input {
                font-size: 16px !important; /* 防止iOS自动缩放 */
            }
            
            .mobile-simple-view .asset-table td,
            .mobile-simple-view .asset-table th {
                padding: 0.5rem;
            }
            
            .mobile-simple-view .form-control {
                padding: 0.5rem;
            }
        }
        
        /* 保存/加载投资组合样式 (新增) */
        .portfolio-management {
            display: flex;
            gap: 0.75rem;
            flex-wrap: wrap;
            margin: 1rem 0;
        }
        
        .portfolio-item {
            background: white;
            border: 1px solid var(--border-color);
            border-radius: 6px;
            padding: 1rem;
            flex: 1;
            min-width: 200px;
        }
        
        .portfolio-item h6 {
            margin-bottom: 0.5rem;
            color: var(--primary-color);
        }
         
        .advanced-panel {
            background-color: rgba(44, 125, 160, 0.05);
            border-radius: 8px;
            padding: 1.5rem;
            margin: 1.5rem 0;
            border: 1px solid rgba(44, 125, 160, 0.2);
        }
        
        .advanced-toggle {
            display: flex;
            align-items: center;
            justify-content: space-between;
            cursor: pointer;
            padding: 0.75rem;
            background-color: white;
            border-radius: 6px;
            border: 1px solid var(--border-color);
            margin-bottom: 1rem;
        }
        
        .advanced-content {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.3s ease-out;
        }
        
        .advanced-content.show {
            max-height: 1000px;
        }