* { 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: #333;
            background: linear-gradient(135deg, #f5f7fa 0%, #e4edf5 100%);
            min-height: 100vh;
            padding-bottom: 40px;
        }
        a { text-decoration: none; color: #2c5282; transition: color 0.3s; }
        a:hover { color: #1a365d; text-decoration: underline; }
        img { max-width: 100%; height: auto; display: block; }
        ul, ol { padding-left: 2em; margin: 1em 0; }
        p { margin-bottom: 1.2em; text-align: justify; }
        .container {
            width: 100%;
            max-width: 1280px;
            margin: 0 auto;
            padding: 0 20px;
        }
        .py-2 { padding-top: 2rem; padding-bottom: 2rem; }
        .my-3 { margin-top: 3rem; margin-bottom: 3rem; }
        .text-center { text-align: center; }
        .lead { font-size: 1.25rem; font-weight: 300; }
        .site-header {
            background: linear-gradient(90deg, #1e3a8a, #3b82f6);
            color: white;
            padding: 1rem 0;
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
            position: sticky;
            top: 0;
            z-index: 1000;
        }
        .header-container {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .my-logo {
            font-family: 'Georgia', serif;
            font-size: 2.2rem;
            font-weight: bold;
            color: #fbbf24;
            text-shadow: 2px 2px 4px rgba(0,0,0,0.3);
            letter-spacing: 1px;
        }
        .my-logo:hover { color: #f59e0b; text-decoration: none; }
        .nav-desktop { display: flex; gap: 2rem; }
        .nav-desktop a {
            color: #dbeafe;
            font-weight: 500;
            padding: 0.5rem 0;
            border-bottom: 2px solid transparent;
        }
        .nav-desktop a:hover { color: white; border-bottom-color: #fbbf24; text-decoration: none; }
        .hamburger {
            display: none;
            font-size: 1.8rem;
            background: none;
            border: none;
            color: white;
            cursor: pointer;
        }
        .nav-mobile {
            display: none;
            flex-direction: column;
            background: #1e40af;
            position: absolute;
            top: 100%;
            left: 0;
            right: 0;
            padding: 1rem;
            box-shadow: 0 5px 15px rgba(0,0,0,0.2);
        }
        .nav-mobile.active { display: flex; }
        .nav-mobile a {
            color: white;
            padding: 0.75rem;
            border-bottom: 1px solid #3b82f6;
        }
        .nav-mobile a:last-child { border-bottom: none; }
        .breadcrumb {
            background: #e2e8f0;
            padding: 0.8rem 0;
            font-size: 0.9rem;
            margin-bottom: 2rem;
        }
        .breadcrumb a { color: #4a5568; }
        .breadcrumb a:hover { color: #2d3748; }
        .breadcrumb span { color: #718096; }
        .main-content {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 3rem;
            margin-top: 2rem;
        }
        article {
            background: white;
            padding: 2.5rem;
            border-radius: 12px;
            box-shadow: 0 6px 20px rgba(0, 0, 0, 0.08);
        }
        h1 {
            font-size: 2.8rem;
            color: #1e3a8a;
            margin-bottom: 1rem;
            line-height: 1.2;
            border-bottom: 3px solid #fbbf24;
            padding-bottom: 0.5rem;
        }
        h2 {
            font-size: 2rem;
            color: #2d3748;
            margin: 2.5rem 0 1rem;
            padding-bottom: 0.5rem;
            border-bottom: 2px solid #e2e8f0;
        }
        h3 {
            font-size: 1.5rem;
            color: #4a5568;
            margin: 2rem 0 0.8rem;
        }
        h4 {
            font-size: 1.2rem;
            color: #718096;
            margin: 1.5rem 0 0.5rem;
        }
        .article-meta {
            color: #718096;
            font-style: italic;
            margin-bottom: 2rem;
            display: flex;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 1rem;
        }
        .highlight {
            background: #fef3c7;
            border-left: 4px solid #f59e0b;
            padding: 1.5rem;
            margin: 1.5rem 0;
            border-radius: 0 8px 8px 0;
        }
        .infobox {
            background: #f0f9ff;
            border: 1px solid #bae6fd;
            border-radius: 10px;
            padding: 1.5rem;
            margin: 2rem 0;
            float: right;
            width: 300px;
            margin-left: 2rem;
        }
        .infobox h3 { margin-top: 0; }
        .feature-img {
            width: 100%;
            border-radius: 12px;
            margin: 2rem 0;
            box-shadow: 0 8px 16px rgba(0,0,0,0.1);
            border: 1px solid #e2e8f0;
        }
        .related-links {
            background: #f7fafc;
            padding: 1.5rem;
            border-radius: 10px;
            margin: 2rem 0;
        }
        .related-links h3 { color: #2d3748; }
        .related-links ul { list-style: none; padding-left: 0; }
        .related-links li { margin-bottom: 0.75rem; }
        .related-links li::before { content: "👉"; margin-right: 10px; }
        aside {
            background: white;
            padding: 1.5rem;
            border-radius: 12px;
            box-shadow: 0 4px 12px rgba(0,0,0,0.05);
            align-self: start;
            position: sticky;
            top: 120px;
        }
        .widget { margin-bottom: 2.5rem; }
        .widget-title {
            font-size: 1.3rem;
            color: #1e3a8a;
            margin-bottom: 1rem;
            padding-bottom: 0.5rem;
            border-bottom: 2px solid #fbbf24;
        }
        .search-form {
            display: flex;
            margin-bottom: 1rem;
        }
        .search-input {
            flex-grow: 1;
            padding: 0.75rem;
            border: 1px solid #cbd5e0;
            border-radius: 6px 0 0 6px;
            font-size: 1rem;
        }
        .search-btn {
            background: #3b82f6;
            color: white;
            border: none;
            padding: 0 1.2rem;
            border-radius: 0 6px 6px 0;
            cursor: pointer;
            transition: background 0.3s;
        }
        .search-btn:hover { background: #2563eb; }
        .rating-widget {
            text-align: center;
        }
        .stars {
            font-size: 1.8rem;
            color: #d1d5db;
            margin: 0.5rem 0;
            cursor: pointer;
        }
        .stars .active { color: #fbbf24; }
        .comment-form textarea {
            width: 100%;
            padding: 0.75rem;
            border: 1px solid #cbd5e0;
            border-radius: 6px;
            font-family: inherit;
            margin-bottom: 0.75rem;
            resize: vertical;
            min-height: 120px;
        }
        .submit-btn {
            background: #10b981;
            color: white;
            border: none;
            padding: 0.75rem 1.5rem;
            border-radius: 6px;
            cursor: pointer;
            font-weight: bold;
            transition: background 0.3s;
            width: 100%;
        }
        .submit-btn:hover { background: #059669; }
        .site-footer {
            background: #1e293b;
            color: #cbd5e1;
            padding: 3rem 0 1.5rem;
            margin-top: 4rem;
        }
        .footer-container {
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            gap: 2rem;
        }
        .footer-section { flex: 1; min-width: 250px; }
        .footer-section h3 {
            color: #fbbf24;
            margin-bottom: 1.5rem;
            font-size: 1.3rem;
        }
        .footer-links { list-style: none; padding-left: 0; }
        .footer-links li { margin-bottom: 0.8rem; }
        .footer-links a { color: #94a3b8; }
        .footer-links a:hover { color: white; }
        friend-link {
            display: inline-block;
            background: #374151;
            color: #60a5fa;
            padding: 0.5rem 1rem;
            margin: 0.3rem;
            border-radius: 20px;
            font-size: 0.9rem;
        }
        friend-link:hover { background: #4b5563; color: white; text-decoration: none; }
        .copyright {
            text-align: center;
            margin-top: 3rem;
            padding-top: 1.5rem;
            border-top: 1px solid #374151;
            color: #94a3b8;
            font-size: 0.9rem;
        }
        @media (max-width: 992px) {
            .main-content { grid-template-columns: 1fr; }
            aside { position: static; }
            .infobox { float: none; width: 100%; margin-left: 0; }
        }
        @media (max-width: 768px) {
            .nav-desktop { display: none; }
            .hamburger { display: block; }
            h1 { font-size: 2.2rem; }
            h2 { font-size: 1.8rem; }
            article { padding: 1.5rem; }
            .header-container { flex-wrap: wrap; }
            .footer-container { flex-direction: column; }
        }
        @media (max-width: 480px) {
            .container { padding: 0 15px; }
            h1 { font-size: 1.8rem; }
            .article-meta { flex-direction: column; }
        }