:root {
            --primary-blue: #0033a0;
            --secondary-red: #bf0d3e;
            --accent-gold: #ffd100;
            --neutral-light: #f5f7fa;
            --neutral-dark: #333333;
            --spacing-xs: 0.5rem;
            --spacing-sm: 1rem;
            --spacing-md: 2rem;
            --spacing-lg: 4rem;
            --border-radius: 8px;
            --shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
            --max-width: 1200px;
        }
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            line-height: 1.7;
            color: var(--neutral-dark);
            background-color: #fff;
            overflow-x: hidden;
        }
        .container {
            width: 100%;
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 var(--spacing-sm);
        }
        .site-header {
            background: linear-gradient(135deg, var(--primary-blue) 0%, #001f5c 100%);
            color: white;
            padding: var(--spacing-sm) 0;
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: var(--shadow);
        }
        .header-container {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .logo a {
            font-size: 1.8rem;
            font-weight: 800;
            color: white;
            text-decoration: none;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .logo i {
            color: var(--accent-gold);
        }
        .logo span {
            background: linear-gradient(to right, var(--accent-gold), white);
            -webkit-background-clip: text;
            background-clip: text;
            color: transparent;
        }
        .main-nav ul {
            display: flex;
            list-style: none;
            gap: var(--spacing-md);
        }
        .main-nav a {
            color: white;
            text-decoration: none;
            font-weight: 600;
            padding: 0.5rem 0;
            position: relative;
            transition: color 0.3s;
        }
        .main-nav a:hover {
            color: var(--accent-gold);
        }
        .main-nav a::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 0;
            height: 3px;
            background-color: var(--accent-gold);
            transition: width 0.3s;
        }
        .main-nav a:hover::after {
            width: 100%;
        }
        .hamburger {
            display: none;
            background: none;
            border: none;
            color: white;
            font-size: 1.5rem;
            cursor: pointer;
        }
        .breadcrumb {
            background-color: var(--neutral-light);
            padding: var(--spacing-xs) 0;
            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: #666;
        }
        .breadcrumb a {
            color: var(--primary-blue);
            text-decoration: none;
        }
        .breadcrumb a:hover {
            text-decoration: underline;
        }
        .search-section {
            background-color: var(--neutral-light);
            padding: var(--spacing-md) 0;
            text-align: center;
        }
        .search-form {
            max-width: 600px;
            margin: 0 auto;
            display: flex;
            border-radius: 50px;
            overflow: hidden;
            box-shadow: var(--shadow);
        }
        .search-form input {
            flex-grow: 1;
            padding: 1rem 1.5rem;
            border: none;
            font-size: 1rem;
            outline: none;
        }
        .search-form button {
            background-color: var(--secondary-red);
            color: white;
            border: none;
            padding: 0 2rem;
            cursor: pointer;
            font-size: 1.2rem;
            transition: background-color 0.3s;
        }
        .search-form button:hover {
            background-color: #9c0a33;
        }
        .hero {
            padding: var(--spacing-lg) 0;
            text-align: center;
            background: linear-gradient(rgba(0, 51, 160, 0.05), rgba(191, 13, 62, 0.05));
        }
        .hero h1 {
            font-size: 2.8rem;
            margin-bottom: var(--spacing-sm);
            color: var(--primary-blue);
            line-height: 1.2;
        }
        .hero p {
            font-size: 1.2rem;
            max-width: 800px;
            margin: 0 auto var(--spacing-md);
            color: #555;
        }
        .main-content {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: var(--spacing-lg);
            padding: var(--spacing-lg) 0;
        }
        article {
            grid-column: 1;
        }
        aside {
            grid-column: 2;
        }
        .article-section {
            margin-bottom: var(--spacing-lg);
        }
        .article-section h2 {
            font-size: 2rem;
            color: var(--primary-blue);
            margin-bottom: var(--spacing-sm);
            padding-bottom: 0.5rem;
            border-bottom: 3px solid var(--accent-gold);
        }
        .article-section h3 {
            font-size: 1.5rem;
            color: var(--secondary-red);
            margin: 1.5rem 0 1rem;
        }
        .article-section p {
            margin-bottom: 1.2rem;
            text-align: justify;
        }
        .article-section ul, .article-section ol {
            margin-left: 2rem;
            margin-bottom: 1.2rem;
        }
        .article-section li {
            margin-bottom: 0.5rem;
        }
        .highlight {
            background-color: #fff8e1;
            border-left: 5px solid var(--accent-gold);
            padding: var(--spacing-sm);
            margin: var(--spacing-md) 0;
            font-style: italic;
        }
        .image-container {
            margin: var(--spacing-md) 0;
            text-align: center;
        }
        .image-container img {
            max-width: 100%;
            height: auto;
            border-radius: var(--border-radius);
            box-shadow: var(--shadow);
        }
        .image-caption {
            font-size: 0.9rem;
            color: #666;
            margin-top: 0.5rem;
            font-style: italic;
        }
        .related-links {
            background-color: var(--neutral-light);
            padding: var(--spacing-sm);
            border-radius: var(--border-radius);
            margin: var(--spacing-md) 0;
        }
        .related-links h4 {
            color: var(--primary-blue);
            margin-bottom: 0.5rem;
        }
        .related-links ul {
            list-style: none;
            margin-left: 0;
        }
        .related-links a {
            color: var(--secondary-red);
            text-decoration: none;
            display: block;
            padding: 0.3rem 0;
            transition: padding-left 0.3s;
        }
        .related-links a:hover {
            padding-left: 10px;
            text-decoration: underline;
        }
        .sidebar-widget {
            background-color: var(--neutral-light);
            padding: var(--spacing-sm);
            border-radius: var(--border-radius);
            margin-bottom: var(--spacing-md);
            box-shadow: var(--shadow);
        }
        .sidebar-widget h3 {
            color: var(--primary-blue);
            margin-bottom: var(--spacing-sm);
            font-size: 1.3rem;
        }
        .countdown {
            text-align: center;
            font-size: 1.5rem;
            font-weight: bold;
            color: var(--secondary-red);
        }
        .interactive-section {
            background-color: white;
            border: 2px dashed var(--primary-blue);
            border-radius: var(--border-radius);
            padding: var(--spacing-md);
            margin: var(--spacing-lg) 0;
        }
        .interactive-section h3 {
            text-align: center;
        }
        .rating-form, .comment-form {
            display: flex;
            flex-direction: column;
            gap: 1rem;
            max-width: 500px;
            margin: 0 auto;
        }
        .star-rating {
            display: flex;
            justify-content: center;
            gap: 0.5rem;
            font-size: 2rem;
            cursor: pointer;
            margin-bottom: 1rem;
        }
        .star-rating .star {
            color: #ddd;
            transition: color 0.2s;
        }
        .star-rating .star:hover,
        .star-rating .star.active {
            color: var(--accent-gold);
        }
        .form-group {
            display: flex;
            flex-direction: column;
        }
        .form-group label {
            margin-bottom: 0.5rem;
            font-weight: 600;
        }
        .form-group input,
        .form-group textarea,
        .form-group select {
            padding: 0.8rem;
            border: 1px solid #ccc;
            border-radius: var(--border-radius);
            font-family: inherit;
            font-size: 1rem;
        }
        .form-group textarea {
            min-height: 150px;
            resize: vertical;
        }
        .submit-btn {
            background-color: var(--primary-blue);
            color: white;
            border: none;
            padding: 1rem 2rem;
            border-radius: var(--border-radius);
            cursor: pointer;
            font-size: 1.1rem;
            font-weight: 600;
            transition: background-color 0.3s;
        }
        .submit-btn:hover {
            background-color: #00257a;
        }
        .site-footer {
            background-color: var(--neutral-dark);
            color: white;
            padding: var(--spacing-lg) 0 var(--spacing-sm);
        }
        .footer-content {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: var(--spacing-lg);
            margin-bottom: var(--spacing-lg);
        }
        .footer-section h4 {
            color: var(--accent-gold);
            margin-bottom: var(--spacing-sm);
            font-size: 1.2rem;
        }
        .footer-section ul {
            list-style: none;
        }
        .footer-section a {
            color: #ddd;
            text-decoration: none;
            line-height: 2;
            transition: color 0.3s;
        }
        .footer-section a:hover {
            color: var(--accent-gold);
        }
        friend-link {
            display: block;
            margin-top: 1rem;
            font-size: 0.9rem;
        }
        .copyright {
            text-align: center;
            padding-top: var(--spacing-sm);
            border-top: 1px solid #555;
            font-size: 0.9rem;
            color: #aaa;
        }
        @media (max-width: 992px) {
            .main-content {
                grid-template-columns: 1fr;
            }
            aside {
                grid-column: 1;
            }
            .hero h1 {
                font-size: 2.2rem;
            }
        }
        @media (max-width: 768px) {
            .main-nav ul {
                position: fixed;
                top: 70px;
                left: -100%;
                flex-direction: column;
                background-color: var(--primary-blue);
                width: 100%;
                text-align: center;
                padding: var(--spacing-md);
                transition: left 0.3s;
                box-shadow: var(--shadow);
            }
            .main-nav.active ul {
                left: 0;
            }
            .hamburger {
                display: block;
            }
            .header-container {
                position: relative;
            }
            .hero h1 {
                font-size: 1.8rem;
            }
            .article-section h2 {
                font-size: 1.6rem;
            }
        }