:root {
            --primary-blue: #003366;
            --accent-gold: #D4AF37;
            --light-gray: #f5f5f5;
            --dark-gray: #333;
            --text-color: #222;
            --shadow: 0 4px 12px rgba(0,0,0,0.1);
            --transition: all 0.3s ease;
            --border-radius: 8px;
        }
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
        }
        body {
            background-color: #fff;
            color: var(--text-color);
            line-height: 1.7;
            display: flex;
            flex-direction: column;
            min-height: 100vh;
        }
        a {
            color: var(--primary-blue);
            text-decoration: none;
            transition: var(--transition);
        }
        a:hover {
            color: var(--accent-gold);
            text-decoration: underline;
        }
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        header {
            background-color: var(--primary-blue);
            color: white;
            padding: 1rem 0;
            box-shadow: var(--shadow);
            position: sticky;
            top: 0;
            z-index: 1000;
        }
        .header-top {
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
        }
        .logo a {
            color: white;
            font-size: 1.8rem;
            font-weight: 800;
            letter-spacing: 1px;
            display: flex;
            align-items: center;
        }
        .logo i {
            color: var(--accent-gold);
            margin-right: 10px;
            font-size: 2rem;
        }
        .search-form {
            display: flex;
            flex-grow: 1;
            max-width: 400px;
            margin: 0 30px;
        }
        .search-form input {
            flex-grow: 1;
            padding: 10px 15px;
            border: none;
            border-radius: var(--border-radius) 0 0 var(--border-radius);
            font-size: 1rem;
        }
        .search-form button {
            background-color: var(--accent-gold);
            color: var(--primary-blue);
            border: none;
            padding: 0 20px;
            border-radius: 0 var(--border-radius) var(--border-radius) 0;
            cursor: pointer;
            font-weight: bold;
            transition: var(--transition);
        }
        .search-form button:hover {
            background-color: white;
        }
        .mobile-toggle {
            display: none;
            background: none;
            border: none;
            color: white;
            font-size: 1.5rem;
            cursor: pointer;
        }
        nav {
            background-color: rgba(0, 0, 0, 0.9);
            margin-top: 1rem;
            border-radius: var(--border-radius);
        }
        .nav-list {
            display: flex;
            justify-content: center;
            list-style: none;
            flex-wrap: wrap;
        }
        .nav-list li {
            position: relative;
        }
        .nav-list a {
            color: white;
            padding: 15px 20px;
            display: block;
            font-weight: 500;
        }
        .nav-list a:hover {
            background-color: var(--accent-gold);
            color: var(--primary-blue);
            text-decoration: none;
        }
        .nav-list .active {
            background-color: var(--accent-gold);
            color: var(--primary-blue);
        }
        .breadcrumb {
            padding: 15px 0;
            background-color: var(--light-gray);
            font-size: 0.9rem;
        }
        .breadcrumb ol {
            display: flex;
            list-style: none;
            flex-wrap: wrap;
        }
        .breadcrumb li:not(:last-child)::after {
            content: '>';
            margin: 0 10px;
            color: #777;
        }
        .breadcrumb a {
            color: #555;
        }
        main {
            flex: 1;
            padding: 30px 0;
        }
        .content-grid {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 40px;
        }
        article {
            background-color: white;
            padding: 30px;
            border-radius: var(--border-radius);
            box-shadow: var(--shadow);
        }
        h1 {
            color: var(--primary-blue);
            font-size: 2.8rem;
            margin-bottom: 1.5rem;
            line-height: 1.2;
            border-bottom: 3px solid var(--accent-gold);
            padding-bottom: 15px;
        }
        h2 {
            color: var(--primary-blue);
            font-size: 2rem;
            margin: 2.5rem 0 1.2rem;
            padding-bottom: 8px;
            border-bottom: 2px dashed var(--light-gray);
        }
        h3 {
            color: #555;
            font-size: 1.6rem;
            margin: 2rem 0 1rem;
        }
        h4 {
            color: #777;
            font-size: 1.3rem;
            margin: 1.5rem 0 0.8rem;
        }
        p {
            margin-bottom: 1.5rem;
            text-align: justify;
        }
        .lead {
            font-size: 1.2rem;
            font-weight: 500;
            color: var(--dark-gray);
            background-color: #f9f9f9;
            padding: 20px;
            border-left: 5px solid var(--accent-gold);
            border-radius: 0 var(--border-radius) var(--border-radius) 0;
            margin-bottom: 2rem;
        }
        .highlight {
            background-color: #fff8e1;
            padding: 20px;
            border-radius: var(--border-radius);
            border: 1px solid #ffecb3;
            margin: 2rem 0;
        }
        .highlight h3 {
            color: var(--primary-blue);
            margin-top: 0;
        }
        img {
            max-width: 100%;
            height: auto;
            border-radius: var(--border-radius);
            display: block;
            margin: 2rem auto;
            box-shadow: var(--shadow);
            border: 5px solid white;
        }
        .img-caption {
            text-align: center;
            font-style: italic;
            color: #666;
            margin-top: -1.5rem;
            margin-bottom: 2rem;
            font-size: 0.95rem;
        }
        ul, ol {
            margin-left: 2rem;
            margin-bottom: 1.5rem;
        }
        li {
            margin-bottom: 0.5rem;
        }
        .link-list {
            display: flex;
            flex-wrap: wrap;
            gap: 15px;
            margin: 2rem 0;
        }
        .link-list a {
            background-color: var(--light-gray);
            padding: 10px 20px;
            border-radius: 30px;
            display: inline-block;
            font-weight: 500;
        }
        .link-list a:hover {
            background-color: var(--accent-gold);
            color: var(--primary-blue);
            text-decoration: none;
            transform: translateY(-3px);
        }
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 20px;
            margin: 2rem 0;
        }
        .stat-card {
            background: linear-gradient(135deg, var(--primary-blue), #004080);
            color: white;
            padding: 25px;
            border-radius: var(--border-radius);
            text-align: center;
            transition: var(--transition);
        }
        .stat-card:hover {
            transform: translateY(-5px);
            box-shadow: 0 10px 20px rgba(0,0,0,0.2);
        }
        .stat-number {
            font-size: 3rem;
            font-weight: 800;
            color: var(--accent-gold);
            display: block;
            line-height: 1;
        }
        .stat-label {
            font-size: 1.1rem;
            margin-top: 10px;
        }
        aside {
            background-color: white;
            padding: 25px;
            border-radius: var(--border-radius);
            box-shadow: var(--shadow);
            align-self: start;
            position: sticky;
            top: 140px;
        }
        .sidebar-widget {
            margin-bottom: 30px;
        }
        .sidebar-widget h3 {
            font-size: 1.4rem;
            color: var(--primary-blue);
            margin-bottom: 15px;
            padding-bottom: 8px;
            border-bottom: 1px solid #eee;
        }
        .sidebar-list {
            list-style: none;
            margin-left: 0;
        }
        .sidebar-list li {
            margin-bottom: 12px;
            padding-bottom: 12px;
            border-bottom: 1px dotted #eee;
        }
        .sidebar-list li:last-child {
            border-bottom: none;
        }
        .countdown {
            background-color: var(--primary-blue);
            color: white;
            padding: 20px;
            border-radius: var(--border-radius);
            text-align: center;
        }
        .countdown h3 {
            color: white;
            border-bottom: none;
            margin-top: 0;
        }
        .countdown-timer {
            display: flex;
            justify-content: space-around;
            margin-top: 15px;
        }
        .countdown-unit {
            display: flex;
            flex-direction: column;
        }
        .countdown-value {
            font-size: 2rem;
            font-weight: 800;
            color: var(--accent-gold);
        }
        .countdown-label {
            font-size: 0.8rem;
            text-transform: uppercase;
        }
        .user-interaction {
            margin-top: 50px;
            background-color: var(--light-gray);
            padding: 30px;
            border-radius: var(--border-radius);
        }
        .user-interaction h2 {
            text-align: center;
            border-bottom: none;
        }
        .interaction-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 30px;
            margin-top: 30px;
        }
        .rating-widget, .comment-widget {
            background-color: white;
            padding: 25px;
            border-radius: var(--border-radius);
        }
        .stars {
            display: flex;
            justify-content: center;
            gap: 10px;
            margin: 20px 0;
        }
        .star {
            font-size: 2.5rem;
            color: #ddd;
            cursor: pointer;
            transition: var(--transition);
        }
        .star:hover,
        .star.active {
            color: var(--accent-gold);
        }
        form {
            display: flex;
            flex-direction: column;
            gap: 20px;
        }
        input, textarea, select {
            padding: 12px 15px;
            border: 1px solid #ccc;
            border-radius: var(--border-radius);
            font-size: 1rem;
            width: 100%;
        }
        textarea {
            min-height: 150px;
            resize: vertical;
        }
        button[type="submit"] {
            background-color: var(--primary-blue);
            color: white;
            border: none;
            padding: 15px;
            border-radius: var(--border-radius);
            font-size: 1.1rem;
            font-weight: bold;
            cursor: pointer;
            transition: var(--transition);
        }
        button[type="submit"]:hover {
            background-color: var(--accent-gold);
            color: var(--primary-blue);
        }
        footer {
            background-color: var(--primary-blue);
            color: white;
            padding: 40px 0 20px;
            margin-top: 50px;
        }
        .footer-content {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 40px;
            margin-bottom: 30px;
        }
        .footer-section h3 {
            color: var(--accent-gold);
            margin-bottom: 20px;
            font-size: 1.4rem;
        }
        friend-link {
            display: block;
            margin-bottom: 10px;
        }
        friend-link a {
            color: #ccc;
        }
        friend-link a:hover {
            color: white;
        }
        .copyright {
            text-align: center;
            padding-top: 20px;
            border-top: 1px solid rgba(255,255,255,0.1);
            font-size: 0.9rem;
            color: #aaa;
        }
        @media (max-width: 992px) {
            .content-grid {
                grid-template-columns: 1fr;
            }
            aside {
                position: static;
            }
            h1 {
                font-size: 2.3rem;
            }
            h2 {
                font-size: 1.8rem;
            }
        }
        @media (max-width: 768px) {
            .header-top {
                flex-direction: column;
                align-items: stretch;
            }
            .logo {
                text-align: center;
                margin-bottom: 15px;
            }
            .search-form {
                max-width: 100%;
                margin: 15px 0;
            }
            .mobile-toggle {
                display: block;
                position: absolute;
                top: 20px;
                right: 20px;
            }
            nav {
                display: none;
                margin-top: 15px;
            }
            nav.active {
                display: block;
            }
            .nav-list {
                flex-direction: column;
            }
            .nav-list li {
                width: 100%;
            }
            .nav-list a {
                padding: 12px 20px;
                border-bottom: 1px solid rgba(255,255,255,0.1);
            }
            .interaction-grid {
                grid-template-columns: 1fr;
            }
        }