* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            background-color: #f8f9fa;
            color: #333;
            line-height: 1.6;
            display: flex;
            flex-direction: column;
            min-height: 100vh;
        }
        a {
            color: #2c5aa0;
            text-decoration: none;
            transition: color 0.3s ease;
        }
        a:hover {
            color: #e63946;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        .header-container {
            background: linear-gradient(135deg, #1a237e 0%, #283593 100%);
            color: white;
            padding: 1rem 2rem;
            box-shadow: 0 4px 12px rgba(0,0,0,0.1);
            position: sticky;
            top: 0;
            z-index: 1000;
        }
        .top-bar {
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
        }
        .my-logo {
            font-size: 2.2rem;
            font-weight: 800;
            letter-spacing: 1px;
            color: #ffd166;
            text-shadow: 2px 2px 4px rgba(0,0,0,0.3);
        }
        .my-logo:hover {
            color: #ffef9f;
        }
        .search-form {
            display: flex;
            flex-grow: 0.5;
            max-width: 500px;
        }
        .search-input {
            flex-grow: 1;
            padding: 0.75rem 1rem;
            border: none;
            border-radius: 30px 0 0 30px;
            font-size: 1rem;
            outline: none;
        }
        .search-btn {
            background: #e63946;
            color: white;
            border: none;
            border-radius: 0 30px 30px 0;
            padding: 0.75rem 1.5rem;
            cursor: pointer;
            transition: background 0.3s;
        }
        .search-btn:hover {
            background: #d62839;
        }
        .nav-container {
            background-color: #2d3748;
            padding: 0.5rem 0;
        }
        .main-nav {
            display: flex;
            justify-content: center;
            list-style: none;
            flex-wrap: wrap;
            padding: 0 2rem;
        }
        .main-nav li {
            margin: 0.25rem 1rem;
        }
        .main-nav a {
            color: #e2e8f0;
            padding: 0.5rem 1rem;
            border-radius: 4px;
            font-weight: 600;
        }
        .main-nav a:hover {
            background-color: #4a5568;
            color: white;
        }
        .hamburger {
            display: none;
            background: none;
            border: none;
            color: white;
            font-size: 1.8rem;
            cursor: pointer;
            padding: 0.5rem;
        }
        .breadcrumb {
            padding: 1rem 2rem;
            background-color: #edf2f7;
            font-size: 0.9rem;
            color: #4a5568;
        }
        .breadcrumb a {
            color: #4a5568;
        }
        .breadcrumb a:hover {
            text-decoration: underline;
        }
        .main-content {
            flex: 1;
            max-width: 1200px;
            margin: 2rem auto;
            padding: 0 2rem;
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 2.5rem;
        }
        .article-container {
            background: white;
            padding: 2.5rem;
            border-radius: 12px;
            box-shadow: 0 6px 15px rgba(0,0,0,0.05);
        }
        .article-header {
            margin-bottom: 2.5rem;
            border-bottom: 2px solid #e63946;
            padding-bottom: 1.5rem;
        }
        .article-header h1 {
            font-size: 2.8rem;
            color: #1a237e;
            line-height: 1.2;
            margin-bottom: 1rem;
        }
        .article-meta {
            display: flex;
            justify-content: space-between;
            color: #718096;
            font-size: 0.95rem;
        }
        .featured-img {
            width: 100%;
            border-radius: 10px;
            margin: 2rem 0;
            box-shadow: 0 8px 20px rgba(0,0,0,0.1);
        }
        h2 {
            font-size: 2rem;
            color: #2d3748;
            margin: 2.5rem 0 1.5rem;
            padding-bottom: 0.5rem;
            border-bottom: 1px dashed #cbd5e0;
        }
        h3 {
            font-size: 1.6rem;
            color: #4a5568;
            margin: 2rem 0 1rem;
        }
        h4 {
            font-size: 1.3rem;
            color: #718096;
            margin: 1.5rem 0 0.75rem;
        }
        p {
            margin-bottom: 1.5rem;
            font-size: 1.1rem;
            text-align: justify;
        }
        .highlight {
            background-color: #fffacd;
            padding: 1.5rem;
            border-left: 5px solid #ffd166;
            margin: 1.5rem 0;
            border-radius: 0 8px 8px 0;
        }
        .quote {
            font-style: italic;
            color: #555;
            border-left: 4px solid #2c5aa0;
            padding-left: 1.5rem;
            margin: 2rem 0;
        }
        .link-box {
            display: inline-block;
            background: #f1f8ff;
            border: 1px solid #c8e1ff;
            padding: 0.75rem 1.25rem;
            border-radius: 8px;
            margin: 0.5rem;
            transition: transform 0.3s;
        }
        .link-box:hover {
            transform: translateY(-3px);
            background: #e3f2fd;
        }
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 1.5rem;
            margin: 2rem 0;
        }
        .stat-card {
            background: linear-gradient(145deg, #e3f2fd, #bbdefb);
            padding: 1.5rem;
            border-radius: 10px;
            text-align: center;
            box-shadow: 0 4px 6px rgba(0,0,0,0.05);
        }
        .stat-card i {
            font-size: 2.5rem;
            color: #1a237e;
            margin-bottom: 1rem;
        }
        .sidebar {
            display: flex;
            flex-direction: column;
            gap: 2rem;
        }
        .sidebar-widget {
            background: white;
            padding: 1.5rem;
            border-radius: 10px;
            box-shadow: 0 4px 10px rgba(0,0,0,0.05);
        }
        .sidebar-widget h3 {
            font-size: 1.3rem;
            margin-top: 0;
            color: #1a237e;
            padding-bottom: 0.75rem;
            border-bottom: 1px solid #e2e8f0;
        }
        .related-links ul {
            list-style: none;
        }
        .related-links li {
            padding: 0.75rem 0;
            border-bottom: 1px dashed #e2e8f0;
        }
        .related-links li:last-child {
            border-bottom: none;
        }
        .user-interaction {
            margin-top: 3rem;
            padding-top: 2rem;
            border-top: 2px solid #e2e8f0;
        }
        .rating-section, .comment-section {
            margin-bottom: 2.5rem;
        }
        .stars {
            display: flex;
            gap: 0.5rem;
            margin: 1rem 0;
        }
        .star {
            font-size: 1.8rem;
            color: #ccc;
            cursor: pointer;
            transition: color 0.2s;
        }
        .star:hover,
        .star.active {
            color: #ffd700;
        }
        .rating-form, .comment-form {
            display: flex;
            flex-direction: column;
            gap: 1rem;
            margin-top: 1.5rem;
        }
        .form-input, .form-textarea {
            padding: 1rem;
            border: 1px solid #cbd5e0;
            border-radius: 8px;
            font-size: 1rem;
        }
        .form-textarea {
            min-height: 150px;
            resize: vertical;
        }
        .form-submit {
            align-self: flex-start;
            background: #2c5aa0;
            color: white;
            border: none;
            padding: 0.9rem 2rem;
            border-radius: 30px;
            cursor: pointer;
            font-weight: 600;
            transition: background 0.3s;
        }
        .form-submit:hover {
            background: #1a237e;
        }
        footer {
            background: #1a202c;
            color: #cbd5e0;
            padding: 3rem 2rem 1.5rem;
            margin-top: 3rem;
        }
        .footer-content {
            max-width: 1200px;
            margin: 0 auto;
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 2rem;
            margin-bottom: 2rem;
        }
        .footer-logo {
            font-size: 2rem;
            color: #ffd166;
            margin-bottom: 1rem;
        }
        .footer-links h4 {
            color: #e2e8f0;
            margin-bottom: 1.2rem;
            font-size: 1.2rem;
        }
        .footer-links ul {
            list-style: none;
        }
        .footer-links li {
            margin-bottom: 0.75rem;
        }
        .footer-links a {
            color: #a0aec0;
        }
        .footer-links a:hover {
            color: #ffd166;
        }
        friend-link {
            display: block;
            padding: 0.5rem 0;
            color: #ffd166;
            font-weight: 600;
        }
        .copyright {
            text-align: center;
            padding-top: 1.5rem;
            border-top: 1px solid #2d3748;
            color: #a0aec0;
            font-size: 0.9rem;
        }
        @media (max-width: 992px) {
            .main-content {
                grid-template-columns: 1fr;
                gap: 2rem;
            }
            .article-header h1 {
                font-size: 2.3rem;
            }
        }
        @media (max-width: 768px) {
            .header-container {
                padding: 1rem;
            }
            .top-bar {
                flex-direction: column;
                align-items: stretch;
                gap: 1rem;
            }
            .search-form {
                max-width: 100%;
            }
            .hamburger {
                display: block;
                position: absolute;
                top: 1.5rem;
                right: 1rem;
            }
            .main-nav {
                display: none;
                flex-direction: column;
                padding: 1rem;
                background: #2d3748;
            }
            .main-nav.active {
                display: flex;
            }
            .nav-container {
                padding: 0;
            }
            .article-container {
                padding: 1.5rem;
            }
            .article-header h1 {
                font-size: 1.9rem;
            }
            h2 {
                font-size: 1.7rem;
            }
            h3 {
                font-size: 1.4rem;
            }
            .main-nav li {
                margin: 0.5rem 0;
            }
            .stats-grid {
                grid-template-columns: 1fr;
            }
        }