* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Segoe UI', 'Microsoft YaHei', sans-serif;
        }
        
        body {
            background-color: #f8f9fa;
            color: #333;
            line-height: 1.6;
        }
        
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        
        /* 头部样式 */
        
        /* 页面路径导航 */
        .breadcrumb {
            background-color: #f1f5f9;
            padding: 15px 0;
            margin-bottom: 30px;
        }
        
        .breadcrumb-links {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 8px;
            color: #666;
            font-size: 0.95rem;
        }
        
        .breadcrumb-links a {
            color: #2c5aa0;
            text-decoration: none;
            transition: opacity 0.3s;
        }
        
        .breadcrumb-links a:hover {
            opacity: 0.8;
        }
        
        .breadcrumb-links i {
            font-size: 0.8rem;
            margin: 0 5px;
        }
        
        /* 页面标题区 */
        .page-header {
            background: linear-gradient(135deg, #2c5aa0 0%, #3a7bd5 100%);
            color: white;
            padding: 40px 0;
            border-radius: 10px;
            margin-bottom: 40px;
            position: relative;
            overflow: hidden;
			padding-left: 10px;
        }
        
        .page-header::before {
            content: '';
            position: absolute;
            top: 0;
            right: 0;
            width: 200px;
            height: 200px;
            background: rgba(255, 255, 255, 0.05);
            border-radius: 50%;
            transform: translate(30%, -30%);
        }
        
        .page-title {
            font-size: 2.5rem;
            margin-bottom: 10px;
            position: relative;
            z-index: 1;
        }
        
        .page-subtitle {
            font-size: 1.2rem;
            opacity: 0.9;
            position: relative;
            z-index: 1;
        }
        
        /* 问答分类导航 */
        .category-nav {
            display: flex;
            justify-content: center;
            flex-wrap: wrap;
            gap: 15px;
            margin-bottom: 40px;
        }
        
        .category-tab {
            padding: 12px 30px;
            background-color: #fff;
            border: 2px solid #e2e8f0;
            border-radius: 30px;
            font-size: 1.1rem;
            font-weight: 600;
            color: #4a5568;
            cursor: pointer;
            transition: all 0.3s;
        }
        
        .category-tab:hover {
            border-color: #2c5aa0;
            color: #2c5aa0;
        }
        
        .category-tab.active {
            background-color: #2c5aa0;
            color: white;
            border-color: #2c5aa0;
        }
        
        /* 问答板块 */
        .qa-section {
            display: none;
            margin-bottom: 40px;
        }
        
        .qa-section.active {
            display: block;
        }
        
        .section-header {
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin-bottom: 25px;
        }
        
        .section-title {
            font-size: 1.8rem;
            color: #2c5aa0;
            position: relative;
            padding-left: 15px;
        }
        
        .section-title::before {
            content: '';
            position: absolute;
            left: 0;
            top: 5px;
            bottom: 5px;
            width: 5px;
            background-color: #2c5aa0;
            border-radius: 3px;
        }
        
        .ask-btn {
            background-color: #2c5aa0;
            color: white;
            border: none;
            padding: 10px 25px;
            border-radius: 5px;
            font-size: 1rem;
            font-weight: 600;
            cursor: pointer;
            transition: background-color 0.3s;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        
        .ask-btn:hover {
            background-color: #3a7bd5;
        }
        
        /* 问题列表 */
        .question-list {
            display: flex;
            flex-direction: column;
            gap: 20px;
        }
        
        .question-item {
            background-color: #fff;
            border-radius: 10px;
            padding: 25px;
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
            transition: transform 0.3s;
        }
        
        .question-item:hover {
            transform: translateY(-5px);
        }
        
        .question-header {
            display: flex;
            justify-content: space-between;
            align-items: flex-start;
            margin-bottom: 15px;
        }
        
        .question-title {
            font-size: 1.3rem;
            color: #2d3748;
            margin-bottom: 5px;
        }
        
        .question-meta {
            display: flex;
            gap: 15px;
            color: #718096;
            font-size: 0.9rem;
        }
        
        .question-meta span {
            display: flex;
            align-items: center;
            gap: 5px;
        }
        
        .question-content {
            color: #4a5568;
            margin-bottom: 20px;
            line-height: 1.7;
        }
        
        .question-footer {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding-top: 15px;
            border-top: 1px solid #e2e8f0;
        }
        
        .question-tags {
            display: flex;
            gap: 8px;
            flex-wrap: wrap;
        }
        
        .tag {
            background-color: #edf2f7;
            color: #4a5568;
            padding: 5px 12px;
            border-radius: 20px;
            font-size: 0.85rem;
        }
        
        .answer-btn {
            background-color: #e2e8f0;
            color: #4a5568;
            border: none;
            padding: 8px 20px;
            border-radius: 5px;
            font-weight: 600;
            cursor: pointer;
            transition: all 0.3s;
            display: flex;
            align-items: center;
            gap: 5px;
        }
        
        .answer-btn:hover {
            background-color: #2c5aa0;
            color: white;
        }
        
        /* 模态框样式 */
        .modal-overlay {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background-color: rgba(0, 0, 0, 0.5);
            display: none;
            justify-content: center;
            align-items: center;
            z-index: 1000;
            opacity: 0;
            transition: opacity 0.3s ease;
        }
        
        .modal-overlay.active {
            display: flex;
            opacity: 1;
        }
        
        .modal {
            background-color: white;
            border-radius: 10px;
            width: 90%;
            max-width: 600px;
            max-height: 90vh;
            overflow-y: auto;
            transform: translateY(-20px);
            transition: transform 0.3s ease;
        }
        
        .modal-overlay.active .modal {
            transform: translateY(0);
        }
        
        .modal-header {
            background: linear-gradient(135deg, #2c5aa0 0%, #3a7bd5 100%);
            color: white;
            padding: 20px 25px;
            border-radius: 10px 10px 0 0;
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        
        .modal-title {
            font-size: 1.5rem;
            font-weight: 600;
        }
        
        .modal-close {
            background: none;
            border: none;
            color: white;
            font-size: 1.5rem;
            cursor: pointer;
            width: 30px;
            height: 30px;
            display: flex;
            justify-content: center;
            align-items: center;
            border-radius: 50%;
            transition: background-color 0.3s;
        }
        
        .modal-close:hover {
            background-color: rgba(255, 255, 255, 0.2);
        }
        
        .modal-body {
            padding: 25px;
        }
        
        .form-group {
            margin-bottom: 20px;
        }
        
        .form-label {
            display: block;
            margin-bottom: 8px;
            font-weight: 600;
            color: #4a5568;
        }
        
        .form-input, .form-textarea, .form-select {
            width: 100%;
            padding: 12px 15px;
            border: 1px solid #e2e8f0;
            border-radius: 5px;
            font-size: 1rem;
            transition: border-color 0.3s;
        }
        
        .form-input:focus, .form-textarea:focus, .form-select:focus {
            outline: none;
            border-color: #2c5aa0;
        }
        
        .form-textarea {
            min-height: 150px;
            resize: vertical;
        }
        
        .form-actions {
            display: flex;
            justify-content: flex-end;
            gap: 15px;
            margin-top: 25px;
        }
        
        .btn-cancel {
            background-color: #e2e8f0;
            color: #4a5568;
            border: none;
            padding: 12px 25px;
            border-radius: 5px;
            font-weight: 600;
            cursor: pointer;
            transition: background-color 0.3s;
        }
        
        .btn-cancel:hover {
            background-color: #cbd5e0;
        }
        
        .btn-submit {
            background-color: #2c5aa0;
            color: white;
            border: none;
            padding: 12px 25px;
            border-radius: 5px;
            font-weight: 600;
            cursor: pointer;
            transition: background-color 0.3s;
        }
        
        .btn-submit:hover {
            background-color: #3a7bd5;
        }
        
        /* 页脚 */

        
        /* 响应式设计 */
        @media (max-width: 992px) {
            .footer-content {
                grid-template-columns: repeat(2, 1fr);
            }
            
            .page-header {
                padding: 30px 0;
            }
            
            .page-title {
                font-size: 2rem;
            }
        }
        
        @media (max-width: 768px) {
            .header-container {
                flex-direction: column;
                gap: 15px;
            }
            
            nav ul {
                gap: 15px;
                flex-wrap: wrap;
                justify-content: center;
            }
            
            .section-header {
                flex-direction: column;
                align-items: flex-start;
                gap: 15px;
            }
            
            .question-header {
                flex-direction: column;
                gap: 10px;
            }
            
            .question-footer {
                flex-direction: column;
                gap: 15px;
                align-items: flex-start;
            }
        }
        
        @media (max-width: 576px) {
            .footer-content {
                grid-template-columns: 1fr;
            }
            
            .category-nav {
                flex-direction: column;
                align-items: center;
            }
            
            .category-tab {
                width: 100%;
                max-width: 300px;
                text-align: center;
            }
            
            .modal {
                width: 95%;
            }
        }