:root {
            --primary: #0c2340; 
            --secondary: #a6192e; 
            --accent: #005ea2; 
            --light: #f5f5f5;
            --dark: #222222;
            --gray: #6c757d;
            --shadow: 0 5px 15px rgba(0,0,0,0.1);
            --transition: all 0.3s ease;
            --border-radius: 8px;
        }
        * {
            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(--dark);
            background-color: #fff;
            overflow-x: hidden;
        }
        h1, h2, h3, h4 {
            color: var(--primary);
            margin-bottom: 1rem;
            font-weight: 700;
            line-height: 1.2;
        }
        h1 {
            font-size: clamp(2.5rem, 5vw, 3.5rem);
            border-left: 5px solid var(--secondary);
            padding-left: 1rem;
            margin-top: 1.5rem;
        }
        h2 {
            font-size: clamp(1.8rem, 4vw, 2.5rem);
            margin-top: 3rem;
            padding-bottom: 0.5rem;
            border-bottom: 2px solid var(--light);
        }
        h3 {
            font-size: 1.5rem;
            color: var(--accent);
            margin-top: 2rem;
        }
        p {
            margin-bottom: 1.5rem;
            font-size: 1.1rem;
        }
        a {
            color: var(--accent);
            text-decoration: none;
            transition: var(--transition);
        }
        a:hover {
            color: var(--secondary);
        }
        .highlight {
            background-color: rgba(10, 35, 64, 0.1);
            padding: 0.2rem 0.5rem;
            border-radius: 3px;
            font-weight: 600;
        }
        blockquote {
            border-left: 4px solid var(--accent);
            padding-left: 1.5rem;
            margin: 2rem 0;
            font-style: italic;
            color: var(--gray);
            font-size: 1.2rem;
        }
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 1.5rem;
        }
        .site-header {
            background-color: var(--primary);
            color: white;
            padding: 1rem 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 {
            color: white;
            font-size: 1.8rem;
            font-weight: 900;
            letter-spacing: 1px;
            display: flex;
            align-items: center;
        }
        .logo i {
            color: var(--secondary);
            margin-right: 10px;
            font-size: 2rem;
        }
        .main-nav ul {
            display: flex;
            list-style: none;
            gap: 2rem;
        }
        .main-nav a {
            color: white;
            font-weight: 600;
            padding: 0.5rem 0;
            position: relative;
        }
        .main-nav a:after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 0;
            height: 2px;
            background-color: var(--secondary);
            transition: var(--transition);
        }
        .main-nav a:hover:after,
        .main-nav a.active:after {
            width: 100%;
        }
        .hamburger {
            display: none;
            background: none;
            border: none;
            color: white;
            font-size: 1.8rem;
            cursor: pointer;
        }
        .breadcrumb {
            background-color: var(--light);
            padding: 1rem 0;
            font-size: 0.9rem;
            margin-bottom: 2rem;
        }
        .breadcrumb ol {
            display: flex;
            list-style: none;
            flex-wrap: wrap;
        }
        .breadcrumb li:not(:last-child):after {
            content: '/';
            margin: 0 10px;
            color: var(--gray);
        }
        .breadcrumb a {
            color: var(--gray);
        }
        .breadcrumb a:hover {
            color: var(--primary);
        }
        .content-wrapper {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 3rem;
            margin: 2rem 0;
        }
        article {
            background: white;
            padding: 2rem;
            border-radius: var(--border-radius);
            box-shadow: var(--shadow);
        }
        .article-meta {
            display: flex;
            justify-content: space-between;
            align-items: center;
            color: var(--gray);
            font-size: 0.9rem;
            margin-bottom: 2rem;
            padding-bottom: 1rem;
            border-bottom: 1px solid var(--light);
        }
        .author {
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .author img {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            object-fit: cover;
        }
        .featured-image {
            width: 100%;
            height: 500px;
            object-fit: cover;
            border-radius: var(--border-radius);
            margin: 2rem 0;
            box-shadow: 0 10px 30px rgba(0,0,0,0.2);
        }
        .data-card {
            background: linear-gradient(135deg, var(--primary), #1a3a5f);
            color: white;
            padding: 2rem;
            border-radius: var(--border-radius);
            margin: 2rem 0;
            text-align: center;
            box-shadow: var(--shadow);
        }
        .data-card h3 {
            color: white;
            font-size: 2rem;
            margin-bottom: 0.5rem;
        }
        .data-card p {
            font-size: 1rem;
            opacity: 0.9;
        }
        aside {
            position: sticky;
            top: 120px;
            height: fit-content;
        }
        .sidebar-widget {
            background: white;
            padding: 1.5rem;
            border-radius: var(--border-radius);
            box-shadow: var(--shadow);
            margin-bottom: 2rem;
        }
        .sidebar-widget h3 {
            margin-top: 0;
            padding-bottom: 0.5rem;
            border-bottom: 2px solid var(--light);
        }
        .search-form {
            display: flex;
            margin-top: 1rem;
        }
        .search-input {
            flex: 1;
            padding: 0.8rem;
            border: 1px solid #ddd;
            border-radius: var(--border-radius) 0 0 var(--border-radius);
            font-size: 1rem;
        }
        .search-btn {
            background-color: var(--accent);
            color: white;
            border: none;
            padding: 0 1.5rem;
            border-radius: 0 var(--border-radius) var(--border-radius) 0;
            cursor: pointer;
            transition: var(--transition);
        }
        .search-btn:hover {
            background-color: var(--primary);
        }
        .comment-form, .rating-form {
            display: flex;
            flex-direction: column;
            gap: 1rem;
            margin-top: 1rem;
        }
        .form-group {
            display: flex;
            flex-direction: column;
        }
        .form-group label {
            font-weight: 600;
            margin-bottom: 0.5rem;
            color: var(--primary);
        }
        .form-control {
            padding: 0.8rem;
            border: 1px solid #ddd;
            border-radius: var(--border-radius);
            font-size: 1rem;
            font-family: inherit;
        }
        textarea.form-control {
            min-height: 120px;
            resize: vertical;
        }
        .star-rating {
            display: flex;
            flex-direction: row-reverse;
            justify-content: flex-end;
            gap: 5px;
            font-size: 1.5rem;
        }
        .star-rating input {
            display: none;
        }
        .star-rating label {
            color: #ddd;
            cursor: pointer;
            transition: var(--transition);
        }
        .star-rating input:checked ~ label,
        .star-rating label:hover,
        .star-rating label:hover ~ label {
            color: #ffc107;
        }
        .submit-btn {
            background-color: var(--secondary);
            color: white;
            border: none;
            padding: 1rem 2rem;
            border-radius: var(--border-radius);
            font-weight: 600;
            cursor: pointer;
            transition: var(--transition);
            align-self: flex-start;
        }
        .submit-btn:hover {
            background-color: #8a1528;
            transform: translateY(-3px);
        }
        .comment {
            border-bottom: 1px solid var(--light);
            padding: 1.5rem 0;
        }
        .comment-header {
            display: flex;
            justify-content: space-between;
            margin-bottom: 0.5rem;
        }
        .comment-author {
            font-weight: 700;
            color: var(--primary);
        }
        .comment-date {
            color: var(--gray);
            font-size: 0.9rem;
        }
        .comment-rating {
            color: #ffc107;
            margin-bottom: 0.5rem;
        }
        .related-links {
            list-style: none;
        }
        .related-links li {
            margin-bottom: 0.8rem;
            padding-left: 1.5rem;
            position: relative;
        }
        .related-links li:before {
            content: '→';
            position: absolute;
            left: 0;
            color: var(--accent);
        }
        .site-footer {
            background-color: var(--dark);
            color: white;
            padding: 3rem 0 1.5rem;
            margin-top: 3rem;
        }
        .footer-container {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 2rem;
            margin-bottom: 2rem;
        }
        .footer-widget h3 {
            color: white;
            font-size: 1.3rem;
            margin-bottom: 1.5rem;
            padding-bottom: 0.5rem;
            border-bottom: 2px solid var(--accent);
        }
        .footer-links {
            list-style: none;
        }
        .footer-links li {
            margin-bottom: 0.8rem;
        }
        .footer-links a {
            color: #ccc;
        }
        .footer-links a:hover {
            color: white;
            padding-left: 5px;
        }
        friend-link {
            display: block;
            background-color: rgba(255,255,255,0.05);
            padding: 1.5rem;
            border-radius: var(--border-radius);
            margin-bottom: 1.5rem;
        }
        friend-link h4 {
            color: #fff;
            margin-bottom: 1rem;
            font-size: 1.1rem;
        }
        .friend-links {
            display: flex;
            flex-wrap: wrap;
            gap: 1rem;
        }
        .friend-links a {
            background-color: rgba(255,255,255,0.1);
            color: white;
            padding: 0.5rem 1rem;
            border-radius: 30px;
            font-size: 0.9rem;
            transition: var(--transition);
        }
        .friend-links a:hover {
            background-color: var(--accent);
            transform: translateY(-3px);
        }
        .copyright {
            text-align: center;
            padding-top: 1.5rem;
            border-top: 1px solid #444;
            color: #aaa;
            font-size: 0.9rem;
        }
        @media (max-width: 992px) {
            .content-wrapper {
                grid-template-columns: 1fr;
            }
            .featured-image {
                height: 400px;
            }
        }
        @media (max-width: 768px) {
            .hamburger {
                display: block;
            }
            .main-nav {
                position: fixed;
                top: 70px;
                left: 0;
                width: 100%;
                background-color: var(--primary);
                padding: 1rem;
                transform: translateY(-150%);
                opacity: 0;
                transition: var(--transition);
                box-shadow: 0 10px 15px rgba(0,0,0,0.1);
            }
            .main-nav.active {
                transform: translateY(0);
                opacity: 1;
            }
            .main-nav ul {
                flex-direction: column;
                gap: 0;
            }
            .main-nav li {
                width: 100%;
                border-bottom: 1px solid rgba(255,255,255,0.1);
            }
            .main-nav a {
                display: block;
                padding: 1rem;
            }
            .article-meta {
                flex-direction: column;
                align-items: flex-start;
                gap: 1rem;
            }
            .featured-image {
                height: 300px;
            }
            .data-card h3 {
                font-size: 1.8rem;
            }
        }
        @media (max-width: 576px) {
            .container {
                padding: 0 1rem;
            }
            article {
                padding: 1.5rem;
            }
            .friend-links {
                flex-direction: column;
            }
        }
        @keyframes fadeIn {
            from { opacity: 0; transform: translateY(20px); }
            to { opacity: 1; transform: translateY(0); }
        }
        .fade-in {
            animation: fadeIn 0.8s ease forwards;
        }
        @media print {
            .site-header, aside, .site-footer, .search-form, .comment-form, .rating-form {
                display: none;
            }
            body {
                color: black;
                background: white;
            }
            a {
                color: black;
                text-decoration: underline;
            }
        }