* { 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: #2c3e50;
            background: linear-gradient(135deg, #f5f7fa 0%, #e4edf5 100%);
            min-height: 100vh;
        }
        img { max-width: 100%; height: auto; display: block; }
        h1, h2, h3, h4 { font-family: Georgia, 'Times New Roman', Times, serif; color: #1a365d; margin-bottom: 1rem; line-height: 1.3; }
        h1 { font-size: clamp(2.5rem, 5vw, 3.5rem); border-bottom: 4px solid #f1c40f; padding-bottom: 0.5rem; }
        h2 { font-size: clamp(1.8rem, 4vw, 2.5rem); color: #2c5282; margin-top: 2.5rem; padding-left: 0.75rem; border-left: 5px solid #3498db; }
        h3 { font-size: 1.5rem; color: #4a5568; margin-top: 2rem; }
        p { margin-bottom: 1.5rem; text-align: justify; }
        .lead { font-size: 1.25rem; font-weight: 300; color: #4a5568; }
        .highlight { background-color: #fff3cd; padding: 0.2rem 0.5rem; border-radius: 3px; font-weight: 600; }
        .emoji { margin-right: 0.5rem; }
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        .site-header {
            background: linear-gradient(to right, #1e3c72, #2a5298);
            color: white;
            padding: 1rem 0;
            box-shadow: 0 4px 12px rgba(0,0,0,0.1);
            position: sticky;
            top: 0;
            z-index: 1000;
        }
        .header-content {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .logo a {
            font-family: 'Trebuchet MS', sans-serif;
            font-size: 2.2rem;
            font-weight: 800;
            color: #f1c40f;
            text-decoration: none;
            letter-spacing: -1px;
            text-shadow: 2px 2px 4px rgba(0,0,0,0.3);
        }
        .logo span { color: #fff; }
        .main-nav ul {
            display: flex;
            list-style: none;
            gap: 2rem;
        }
        .main-nav a {
            color: #e2e8f0;
            text-decoration: none;
            font-weight: 600;
            font-size: 1.05rem;
            padding: 0.5rem 0;
            transition: all 0.3s ease;
            border-bottom: 2px solid transparent;
        }
        .main-nav a:hover,
        .main-nav a:focus {
            color: #f1c40f;
            border-bottom-color: #f1c40f;
        }
        .hamburger {
            display: none;
            background: none;
            border: none;
            color: white;
            font-size: 1.8rem;
            cursor: pointer;
        }
        .breadcrumb {
            padding: 1rem 0;
            background-color: #edf2f7;
            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: #718096;
        }
        .breadcrumb a {
            color: #4a5568;
            text-decoration: none;
        }
        .breadcrumb a:hover { text-decoration: underline; }
        .main-content {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 3rem;
            padding: 3rem 0;
        }
        @media (max-width: 992px) {
            .main-content { grid-template-columns: 1fr; }
        }
        .article-body {
            background: white;
            padding: 2.5rem;
            border-radius: 12px;
            box-shadow: 0 10px 30px rgba(0,0,0,0.08);
        }
        .featured-image {
            margin: 2rem 0;
            border-radius: 10px;
            overflow: hidden;
            box-shadow: 0 8px 20px rgba(0,0,0,0.15);
        }
        .featured-image figcaption {
            font-style: italic;
            text-align: center;
            padding: 0.75rem;
            background: #f8f9fa;
            color: #6c757d;
            font-size: 0.9rem;
        }
        .sidebar {
            display: flex;
            flex-direction: column;
            gap: 2rem;
        }
        .sidebar-widget {
            background: white;
            padding: 1.8rem;
            border-radius: 10px;
            box-shadow: 0 5px 15px rgba(0,0,0,0.05);
        }
        .sidebar-widget h3 {
            margin-top: 0;
            color: #1a365d;
            font-size: 1.4rem;
            padding-bottom: 0.75rem;
            border-bottom: 2px solid #e2e8f0;
        }
        .search-form, .comment-form, .rating-form {
            display: flex;
            flex-direction: column;
            gap: 1rem;
        }
        .form-group { display: flex; flex-direction: column; }
        label {
            font-weight: 600;
            margin-bottom: 0.5rem;
            color: #4a5568;
        }
        input, select, textarea {
            padding: 0.85rem;
            border: 1px solid #cbd5e0;
            border-radius: 6px;
            font-size: 1rem;
            transition: border 0.3s;
        }
        input:focus, select:focus, textarea:focus {
            outline: none;
            border-color: #3498db;
            box-shadow: 0 0 0 3px rgba(52, 152, 219, 0.2);
        }
        button, .btn {
            background: linear-gradient(to right, #3498db, #2c80b9);
            color: white;
            border: none;
            padding: 1rem 1.8rem;
            border-radius: 6px;
            font-weight: 700;
            font-size: 1rem;
            cursor: pointer;
            transition: all 0.3s ease;
            text-align: center;
            text-decoration: none;
            display: inline-block;
        }
        button:hover, .btn:hover {
            background: linear-gradient(to right, #2980b9, #1c6ea4);
            transform: translateY(-2px);
            box-shadow: 0 5px 15px rgba(0,0,0,0.1);
        }
        .stars { display: flex; gap: 0.5rem; font-size: 1.8rem; color: #d1d5db; }
        .stars label { cursor: pointer; margin-bottom: 0; }
        .stars input { display: none; }
        .stars input:checked ~ label { color: #f1c40f; }
        .longtail-links {
            background: #1a365d;
            padding: 3rem 0;
            margin-top: 3rem;
        }
        .web-links-container {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
            gap: 1.5rem;
        }
        .web-link {
            background: #2d3748;
            padding: 1.2rem;
            border-radius: 8px;
            transition: transform 0.3s, background 0.3s;
        }
        .web-link:hover {
            background: #4a5568;
            transform: translateX(5px);
        }
        .web-link a {
            color: #e2e8f0;
            text-decoration: none;
            font-weight: 500;
            display: block;
        }
        .web-link a:hover { color: #f1c40f; }
        .site-footer {
            background: #1a202c;
            color: #a0aec0;
            padding: 3rem 0 1.5rem;
        }
        .footer-content {
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 2rem;
            padding-bottom: 2rem;
            border-bottom: 1px solid #2d3748;
        }
        .copyright {
            text-align: center;
            padding-top: 1.5rem;
            font-size: 0.9rem;
            color: #718096;
            width: 100%;
        }
        @media (max-width: 768px) {
            .hamburger { display: block; }
            .main-nav ul {
                display: none;
                flex-direction: column;
                position: absolute;
                top: 100%;
                left: 0;
                width: 100%;
                background: #2a5298;
                padding: 1rem;
                box-shadow: 0 10px 15px rgba(0,0,0,0.1);
            }
            .main-nav.active ul { display: flex; }
            .header-content { flex-wrap: wrap; }
            .article-body { padding: 1.5rem; }
            .footer-content { flex-direction: column; text-align: center; }
        }
        .text-center { text-align: center; }
        .mt-3 { margin-top: 1rem; }
        .mb-3 { margin-bottom: 1rem; }
        .py-2 { padding-top: 0.5rem; padding-bottom: 0.5rem; }