:root {
            --primary-color: #005a9c;
            --secondary-color: #333;
            --background-color: #f0f2f5;
            --card-background: #ffffff;
            --text-color: #333;
            --header-height: 60px;
            --nav-width: 280px;
        }
        * {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        body {
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
            background-color: var(--background-color);
            color: var(--text-color);
            display: flex;
            flex-direction: column;
            min-height: 100vh;
        }
        .header {
            width: 100%;
            height: var(--header-height);
            background-color: var(--card-background);
            box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 0 2rem;
            z-index: 1300;
            position: sticky;
            top: 0;
        }
        .header .logo {
            max-height: 100%;
            height: auto;
            width: auto;
        }
        .header nav {
            display: flex;
            align-items: center;
        }
        .header nav a {
            color: var(--primary-color);
            text-decoration: none;
            font-weight: 500;
            padding: 0.5rem 1rem;
            border-radius: 5px;
            margin-left: 0.5rem;
            transition: background-color 0.3s, color 0.3s;
        }
        .header nav a:hover, .header nav a.active {
            background-color: var(--primary-color);
            color: var(--card-background);
        }
        .menu-toggle {
            display: none;
            background: transparent;
            border: 0;
            color: var(--primary-color);
            font-size: 1.4rem;
            cursor: pointer;
            position: relative;
            z-index: 1400;
            touch-action: manipulation;
        }
        .main-content {
            flex-grow: 1;
            padding: 2rem;
        }
        .container {
            max-width: 1200px;
            margin: auto;
            padding: 0 1rem;
        }
        .section {
            background: var(--card-background);
            padding: 2rem;
            margin-bottom: 2rem;
            border-radius: 8px;
            box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
        }
        .section h2 {
            color: var(--primary-color);
            border-bottom: 2px solid var(--primary-color);
            padding-bottom: 10px;
            margin-bottom: 20px;
        }
        .section p {
            font-size: 1.1rem;
            line-height: 1.6;
        }
        .achievements-table {
            width: 100%;
            border-collapse: collapse;
            margin-top: 1.5rem;
        }
        .achievements-table th, .achievements-table td {
            border: 1px solid #ddd;
            padding: 12px;
            text-align: left;
        }
        .achievements-table th {
            background-color: var(--primary-color);
            color: white;
            font-weight: bold;
        }
        .faq-item {
            margin-bottom: 1rem;
        }
        .faq-question {
            font-weight: bold;
            color: var(--primary-color);
            cursor: pointer;
        }
        .faq-answer {
            display: none;
            margin-top: 0.5rem;
            padding-left: 1rem;
            border-left: 2px solid var(--primary-color);
        }
        .nav-overlay {
            position: fixed;
            inset: 0;
            background: rgba(0, 0, 0, 0.35);
            opacity: 0;
            visibility: hidden;
            pointer-events: none;
            transition: opacity 0.3s ease, visibility 0.3s ease;
            z-index: 1200;
        }
        .nav-overlay.is-active {
            opacity: 1;
            visibility: visible;
            pointer-events: auto;
        }
        @media (max-width: 900px) {
            .header {
                padding: 0 1rem;
            }
            .header .logo {
                max-height: 44px;
            }
            .menu-toggle {
                display: inline-flex;
                align-items: center;
                gap: 0.5rem;
            }
            .header nav {
                position: fixed;
                top: 0;
                right: 0;
                height: 100vh;
                width: min(var(--nav-width), 80vw);
                background: #ffffff;
                box-shadow: -4px 0 10px rgba(0, 0, 0, 0.15);
                flex-direction: column;
                align-items: flex-start;
                padding: calc(var(--header-height) + 1rem) 1.5rem 1.5rem;
                transform: translateX(100%);
                transition: transform 0.3s ease;
                z-index: 1500;
                overflow-y: auto;
                -webkit-overflow-scrolling: touch;
                pointer-events: auto;
            }
            .header nav a {
                margin: 0 0 0.75rem 0;
                width: 100%;
            }
            .header nav.is-open {
                transform: translateX(0);
            }
            .main-content {
                padding: 1.25rem 1rem;
            }
            .section {
                padding: 1.25rem;
            }
            .section h2 {
                font-size: 1.1rem;
            }
            .section p {
                font-size: 0.98rem;
                line-height: 1.5;
            }
            .achievements-table th, .achievements-table td {
                padding: 10px;
                font-size: 0.95rem;
            }
        }