* {
            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;
            overflow-x: hidden;
        }
        a {
            text-decoration: none;
            color: inherit;
            transition: color 0.3s ease;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        ul, ol {
            list-style-position: inside;
            margin-left: 1rem;
        }
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        header {
            background: linear-gradient(135deg, #1a237e 0%, #283593 100%);
            color: white;
            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;
            padding: 15px 0;
        }
        .logo {
            font-size: 2rem;
            font-weight: 800;
            letter-spacing: -0.5px;
            color: #FFD700;
            text-shadow: 1px 1px 3px rgba(0,0,0,0.3);
        }
        .logo span {
            color: #4FC3F7;
        }
        .desktop-nav ul {
            display: flex;
            gap: 30px;
        }
        .desktop-nav a {
            font-weight: 600;
            font-size: 1.05rem;
            padding: 8px 5px;
            border-bottom: 2px solid transparent;
        }
        .desktop-nav a:hover,
        .desktop-nav a.active {
            color: #FFD700;
            border-bottom-color: #FFD700;
        }
        .hamburger {
            display: none;
            font-size: 1.8rem;
            background: none;
            border: none;
            color: white;
            cursor: pointer;
        }
        .mobile-nav {
            display: none;
            flex-direction: column;
            background-color: #1a237e;
            padding: 20px;
            position: absolute;
            top: 100%;
            left: 0;
            width: 100%;
            box-shadow: 0 5px 10px rgba(0,0,0,0.2);
        }
        .mobile-nav.active {
            display: flex;
        }
        .mobile-nav a {
            padding: 12px 0;
            border-bottom: 1px solid rgba(255,255,255,0.1);
            font-weight: 600;
        }
        .mobile-nav a:hover {
            color: #FFD700;
        }
        .breadcrumb {
            background-color: #e8eaf6;
            padding: 12px 0;
            font-size: 0.9rem;
        }
        .breadcrumb .container {
            display: flex;
            gap: 10px;
            flex-wrap: wrap;
        }
        .breadcrumb a:hover {
            color: #1a237e;
            text-decoration: underline;
        }
        .breadcrumb span {
            color: #666;
        }
        main {
            padding: 40px 0;
            background-color: white;
            box-shadow: 0 0 15px rgba(0,0,0,0.05);
            border-radius: 8px;
            margin: 20px auto;
        }
        article {
            max-width: 900px;
            margin: 0 auto;
            padding: 0 20px;
        }
        h1 {
            font-size: 2.8rem;
            color: #1a237e;
            margin-bottom: 1.5rem;
            line-height: 1.2;
        }
        h2 {
            font-size: 2rem;
            color: #283593;
            margin: 2.5rem 0 1rem;
            padding-bottom: 10px;
            border-bottom: 2px solid #e8eaf6;
        }
        h3 {
            font-size: 1.5rem;
            color: #3949ab;
            margin: 1.8rem 0 0.8rem;
        }
        p {
            margin-bottom: 1.5rem;
            font-size: 1.1rem;
            text-align: justify;
        }
        .lead {
            font-size: 1.3rem;
            color: #555;
            font-weight: 500;
            background-color: #f3f5fd;
            padding: 20px;
            border-left: 5px solid #3949ab;
            border-radius: 0 8px 8px 0;
            margin-bottom: 2.5rem;
        }
        .highlight {
            background-color: #fffde7;
            padding: 25px;
            border-radius: 10px;
            border: 1px solid #ffeb3b;
            margin: 2rem 0;
            box-shadow: 0 4px 8px rgba(255,193,7,0.1);
        }
        .highlight h3 {
            color: #f57c00;
            margin-top: 0;
        }
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 20px;
            margin: 2rem 0;
        }
        .stat-card {
            background: linear-gradient(145deg, #e3f2fd, #bbdefb);
            padding: 20px;
            border-radius: 10px;
            text-align: center;
            box-shadow: 0 5px 10px rgba(0,0,0,0.05);
            transition: transform 0.3s ease;
        }
        .stat-card:hover {
            transform: translateY(-5px);
        }
        .stat-card i {
            font-size: 2.5rem;
            color: #1a237e;
            margin-bottom: 15px;
        }
        .stat-card h4 {
            font-size: 1.8rem;
            color: #0d47a1;
            margin-bottom: 10px;
        }
        .image-wrapper {
            margin: 2.5rem auto;
            text-align: center;
            max-width: 800px;
        }
        .image-wrapper img {
            border-radius: 10px;
            box-shadow: 0 8px 20px rgba(0,0,0,0.15);
            border: 5px solid white;
        }
        .image-caption {
            font-style: italic;
            color: #666;
            margin-top: 10px;
            font-size: 0.95rem;
        }
        blockquote {
            font-style: italic;
            background-color: #f5f5f5;
            border-left: 5px solid #7986cb;
            padding: 20px 30px;
            margin: 2rem 0;
            border-radius: 0 8px 8px 0;
            color: #444;
        }
        blockquote footer {
            margin-top: 10px;
            font-weight: bold;
            color: #3949ab;
        }
        .strategy-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
            gap: 25px;
            margin: 2.5rem 0;
        }
        .strategy-card {
            background: white;
            border: 1px solid #ddd;
            border-radius: 10px;
            padding: 25px;
            transition: all 0.3s ease;
            box-shadow: 0 4px 8px rgba(0,0,0,0.05);
        }
        .strategy-card:hover {
            border-color: #7986cb;
            box-shadow: 0 8px 15px rgba(121, 134, 203, 0.2);
            transform: translateY(-3px);
        }
        .strategy-card h4 {
            color: #1a237e;
            margin-bottom: 15px;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .emoji {
            font-size: 1.5rem;
            margin-right: 5px;
        }
        .interaction-module {
            background-color: #f8f9fa;
            border-radius: 12px;
            padding: 30px;
            margin: 3rem 0;
            border: 1px solid #e0e0e0;
        }
        .interaction-module h3 {
            margin-top: 0;
            color: #1a237e;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .search-form, .comment-form, .rating-form {
            display: flex;
            flex-wrap: wrap;
            gap: 15px;
            margin-top: 20px;
        }
        .search-form input,
        .comment-form input,
        .comment-form textarea,
        .rating-form select {
            padding: 12px 15px;
            border: 1px solid #ccc;
            border-radius: 6px;
            font-size: 1rem;
            flex: 1;
            min-width: 250px;
        }
        .comment-form textarea {
            min-height: 120px;
            width: 100%;
            resize: vertical;
        }
        button, .btn {
            background: linear-gradient(to right, #1a237e, #3949ab);
            color: white;
            border: none;
            padding: 12px 25px;
            border-radius: 6px;
            font-weight: 600;
            cursor: pointer;
            transition: background 0.3s ease, transform 0.2s;
        }
        button:hover, .btn:hover {
            background: linear-gradient(to right, #283593, #5c6bc0);
            transform: scale(1.03);
        }
        .stars {
            display: flex;
            gap: 5px;
            margin: 15px 0;
        }
        .stars i {
            color: #ddd;
            font-size: 1.8rem;
            cursor: pointer;
            transition: color 0.2s;
        }
        .stars i:hover,
        .stars i.active {
            color: #FFD700;
        }
        .long-tail-links {
            background-color: #e8eaf6;
            padding: 30px 0;
            margin-top: 50px;
        }
        .long-tail-links .container {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
            gap: 15px;
        }
        .web-link {
            background-color: white;
            padding: 15px;
            border-radius: 6px;
            border-left: 4px solid #3949ab;
            transition: transform 0.2s, box-shadow 0.2s;
        }
        .web-link:hover {
            transform: translateX(5px);
            box-shadow: 0 4px 8px rgba(0,0,0,0.1);
        }
        .web-link a {
            color: #1a237e;
            font-weight: 500;
        }
        .web-link a:hover {
            text-decoration: underline;
        }
        footer {
            background-color: #1a237e;
            color: #e8eaf6;
            padding: 40px 0 20px;
            text-align: center;
        }
        .footer-container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        .copyright {
            margin-top: 30px;
            padding-top: 20px;
            border-top: 1px solid #3949ab;
            font-size: 0.9rem;
            color: #b0b9e0;
        }
        @media (max-width: 992px) {
            h1 { font-size: 2.4rem; }
            h2 { font-size: 1.8rem; }
            .desktop-nav { display: none; }
            .hamburger { display: block; }
        }
        @media (max-width: 768px) {
            .container { padding: 0 15px; }
            h1 { font-size: 2rem; }
            .lead { font-size: 1.1rem; }
            .strategy-grid { grid-template-columns: 1fr; }
            .search-form input,
            .comment-form input,
            .rating-form select { min-width: 100%; }
        }