* { 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%);
            max-width: 100%;
            overflow-x: hidden;
        }
        a { text-decoration: none; color: inherit; transition: color 0.3s ease; }
        ul, ol { list-style-position: inside; margin-left: 1.2rem; }
        img { max-width: 100%; height: auto; display: block; }
        h1 { font-size: 2.8rem; color: #1a365d; margin-bottom: 1.5rem; line-height: 1.2; }
        h2 { font-size: 2.2rem; color: #2d4a8a; margin: 2.5rem 0 1.2rem; padding-bottom: 0.5rem; border-bottom: 3px solid #4CAF50; }
        h3 { font-size: 1.8rem; color: #3a506b; margin: 2rem 0 1rem; }
        p { margin-bottom: 1.5rem; font-size: 1.1rem; text-align: justify; }
        .lead { font-size: 1.3rem; color: #555; font-weight: 500; }
        .highlight { background-color: #fffacd; padding: 0.2rem 0.5rem; border-radius: 3px; font-weight: 600; }
        .emoji { font-size: 1.2em; margin-right: 0.3rem; }
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        .content-grid {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 40px;
            margin-top: 30px;
        }
        .site-header {
            background: linear-gradient(90deg, #0f2b5f 0%, #1a3d7c 100%);
            color: white;
            padding: 1rem 0;
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: 0 4px 12px rgba(0,0,0,0.1);
        }
        .header-container {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .logo a {
            font-size: 2rem;
            font-weight: 800;
            color: #4CAF50;
            text-shadow: 1px 1px 3px rgba(0,0,0,0.5);
            letter-spacing: 1px;
        }
        .logo span { color: #FFD700; }
        .main-nav ul {
            display: flex;
            gap: 2rem;
        }
        .main-nav a {
            font-weight: 600;
            padding: 0.5rem 1rem;
            border-radius: 4px;
        }
        .main-nav a:hover {
            background-color: rgba(255, 255, 255, 0.15);
            color: #FFD700;
        }
        .hamburger {
            display: none;
            font-size: 1.8rem;
            cursor: pointer;
            color: #FFD700;
        }
        .breadcrumb {
            padding: 1rem 0;
            background-color: #edf2f7;
            font-size: 0.95rem;
        }
        .breadcrumb a { color: #2d4a8a; }
        .breadcrumb a:hover { text-decoration: underline; }
        .breadcrumb span { color: #666; }
        main { padding: 2rem 0; background-color: white; border-radius: 10px; box-shadow: 0 5px 15px rgba(0,0,0,0.05); margin-bottom: 2rem; }
        .article-content { padding: 0 2rem; }
        .featured-image {
            width: 100%;
            border-radius: 10px;
            margin: 2rem 0;
            box-shadow: 0 8px 20px rgba(0,0,0,0.1);
            border: 5px solid #4CAF50;
        }
        .sidebar {
            background: #f8f9fa;
            border-left: 4px solid #4CAF50;
            padding: 1.5rem;
            border-radius: 8px;
            height: fit-content;
            position: sticky;
            top: 120px;
        }
        .sidebar-widget { margin-bottom: 2rem; }
        .sidebar h3 { font-size: 1.4rem; border-bottom: 2px dashed #ccc; padding-bottom: 0.5rem; }
        .search-box { display: flex; margin-bottom: 1.5rem; }
        .search-box input {
            flex: 1;
            padding: 12px 15px;
            border: 2px solid #4CAF50;
            border-radius: 5px 0 0 5px;
            font-size: 1rem;
        }
        .search-box button {
            background: #4CAF50;
            color: white;
            border: none;
            padding: 0 20px;
            border-radius: 0 5px 5px 0;
            cursor: pointer;
            font-size: 1.2rem;
        }
        .search-box button:hover { background: #3d8b40; }
        .interactive-form {
            background: white;
            padding: 1.5rem;
            border-radius: 8px;
            box-shadow: 0 4px 10px rgba(0,0,0,0.05);
            margin-bottom: 2rem;
        }
        .interactive-form h3 { border-bottom: none; }
        .form-group { margin-bottom: 1.2rem; }
        .form-group label { display: block; margin-bottom: 0.5rem; font-weight: 600; }
        .form-group input, .form-group textarea, .form-group select {
            width: 100%;
            padding: 10px 15px;
            border: 1px solid #ccc;
            border-radius: 5px;
            font-size: 1rem;
        }
        .form-group textarea { min-height: 100px; resize: vertical; }
        .star-rating { display: flex; gap: 5px; font-size: 1.8rem; color: #ddd; cursor: pointer; }
        .star-rating .star:hover, .star-rating .star.active { color: #FFD700; }
        .submit-btn {
            background: linear-gradient(90deg, #0f2b5f, #2d4a8a);
            color: white;
            border: none;
            padding: 12px 25px;
            border-radius: 5px;
            font-weight: bold;
            cursor: pointer;
            transition: all 0.3s ease;
            display: block;
            width: 100%;
        }
        .submit-btn:hover { background: linear-gradient(90deg, #2d4a8a, #0f2b5f); transform: translateY(-2px); }
        .web-links-section {
            background: #eef5ff;
            padding: 2rem;
            margin: 3rem 0;
            border-radius: 10px;
            border-left: 6px solid #0f2b5f;
        }
        .web-links-container {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
            gap: 1rem;
        }
        .web-link {
            background: white;
            padding: 12px 15px;
            border-radius: 6px;
            box-shadow: 0 3px 6px rgba(0,0,0,0.05);
            border: 1px solid #c5d5ea;
        }
        .web-link a { color: #2d4a8a; font-weight: 600; }
        .web-link a:hover { color: #4CAF50; text-decoration: underline; }
        .site-footer {
            background: #0f2b5f;
            color: #ccc;
            padding: 3rem 0 1.5rem;
        }
        .footer-container {
            display: flex;
            flex-direction: column;
            align-items: center;
            text-align: center;
        }
        .copyright {
            margin-top: 2rem;
            padding-top: 1.5rem;
            border-top: 1px solid #2d4a8a;
            width: 100%;
            font-size: 0.9rem;
            color: #aaa;
        }
        @media (max-width: 992px) {
            .content-grid { grid-template-columns: 1fr; }
            .sidebar { order: -1; position: static; margin-bottom: 2rem; }
        }
        @media (max-width: 768px) {
            h1 { font-size: 2.2rem; }
            h2 { font-size: 1.8rem; }
            .main-nav ul {
                flex-direction: column;
                position: absolute;
                top: 100%;
                left: 0;
                width: 100%;
                background: #1a3d7c;
                padding: 1rem;
                display: none;
                box-shadow: 0 10px 15px rgba(0,0,0,0.2);
            }
            .main-nav.active ul { display: flex; }
            .hamburger { display: block; }
            .article-content { padding: 0 1rem; }
            .header-container { flex-wrap: wrap; }
        }
        @media (max-width: 480px) {
            .container { padding: 0 15px; }
            .web-links-container { grid-template-columns: 1fr; }
        }
        .text-center { text-align: center; }
        .mb-3 { margin-bottom: 1.5rem; }
        .mt-3 { margin-top: 1.5rem; }
        .p-3 { padding: 1.5rem; }
        .rounded { border-radius: 8px; }
        .shadow { box-shadow: 0 5px 15px rgba(0,0,0,0.08); }