:root {
            --primary-blue: #1e3a5f;
            --secondary-blue: #2c5983;
            --light-blue: #e6f0ff;
            --white: #ffffff;
            --gray: #f5f5f5;
            --dark-gray: #333333;
        }
        
        
        
        body {
            background-color: var(--gray);
            color: var(--dark-gray);
            line-height: 1.6;
        }
        
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 20px;
        }
        
        header {
            background: linear-gradient(135deg, var(--primary-blue), var(--secondary-blue));
            color: var(--white);
            padding: 40px 0;
            text-align: center;
            border-radius: 0 0 20px 20px;
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
            margin-bottom: 40px;
        }
        
        header h1 {
            font-size: 2.5rem;
            margin-bottom: 20px;
        }
        
        header p {
            font-size: 1.2rem;
            max-width: 800px;
            margin: 0 auto;
        }
        
        .search-box {
            max-width: 600px;
            margin: 30px auto 0;
            position: relative;
        }
        
        .search-box input {
            width: 100%;
            padding: 15px 20px;
            border: none;
            border-radius: 30px;
            font-size: 1.1rem;
            box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
        }
        
        .search-box button {
            position: absolute;
            right: 5px;
            top: 5px;
            background: var(--primary-blue);
            color: var(--white);
            border: none;
            border-radius: 50%;
            width: 40px;
            height: 40px;
            cursor: pointer;
            font-size: 1.2rem;
            transition: background 0.3s;
        }
        
        .search-box button:hover {
            background: var(--secondary-blue);
        }
        
        .faq-container {
            display: flex;
            gap: 30px;
            margin-bottom: 40px;
        }
        
        .categories {
            flex: 1;
            min-width: 250px;
            background: var(--white);
            border-radius: 10px;
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
            padding: 20px;
            position: sticky;
            top: 20px;
            height: fit-content;
        }
        
        .categories h2 {
            font-size: 1.4rem;
            margin-bottom: 20px;
            color: var(--primary-blue);
            border-bottom: 2px solid var(--light-blue);
            padding-bottom: 10px;
        }
        
        .category-list {
            list-style: none;
        }
        
        .category-list li {
            margin-bottom: 15px;
        }
        
        .category-list a {
            display: block;
            padding: 12px 15px;
            background: var(--gray);
            border-radius: 8px;
            text-decoration: none;
            color: var(--dark-gray);
            transition: all 0.3s;
            border-left: 3px solid var(--primary-blue);
        }
        
        .category-list a:hover {
            background: var(--light-blue);
            transform: translateX(5px);
        }
        
        .faq-content {
            flex: 3;
        }
        
        .faq-section {
            background: var(--white);
            border-radius: 10px;
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
            margin-bottom: 30px;
            overflow: hidden;
        }
        
        .faq-section h2 {
            background: var(--primary-blue);
            color: var(--white);
            padding: 15px 20px;
            font-size: 1.4rem;
        }
        
        .faq-item {
            border-bottom: 1px solid var(--gray);
        }
        
        .faq-item:last-child {
            border-bottom: none;
        }
        
        .question {
            padding: 20px;
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            font-weight: 600;
            font-size: 1.1rem;
            color: var(--primary-blue);
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
        }
        
        .question:hover {
            background: var(--light-blue);
        }
        
        .question::after {
            content: '▼';
            color: var(--primary-blue);
            transition: transform 0.3s;
        }
        
        .question.active::after {
            transform: rotate(180deg);
        }
        
        .answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.3s ease-out;
            padding: 0 20px;
            background: var(--light-blue);
            border-left: 3px solid var(--primary-blue);
        }
        
        .answer.active {
            max-height: 1000px;
            transition: max-height 0.5s ease-in;
        }
        
        .answer-content {
            padding: 20px 0;
        }
        
        
        
        @media (max-width: 768px) {
            .faq-container {
                flex-direction: column;
            }
            
            .categories {
                position: relative;
                top: 0;
                width: 100%;
            }
            
            header h1 {
                font-size: 2rem;
            }
            
            header p {
                font-size: 1rem;
            }
        }