* {
            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-color: #f8f9fa;
            font-size: 18px;
            text-align: justify;
            hyphens: auto;
            -webkit-hyphens: auto;
            word-wrap: break-word;
        }
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        header {
            background: linear-gradient(135deg, #1a237e 0%, #311b92 100%);
            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;
            flex-wrap: wrap;
        }
        .logo a {
            font-size: 2.2rem;
            font-weight: 800;
            color: #ffd700;
            text-decoration: none;
            letter-spacing: 1px;
            transition: transform 0.3s ease;
            display: flex;
            align-items: center;
        }
        .logo a:hover {
            transform: scale(1.05);
            color: #ffeb3b;
        }
        .logo i {
            margin-right: 10px;
            font-size: 2.5rem;
        }
        nav ul {
            display: flex;
            list-style: none;
            gap: 2rem;
            flex-wrap: wrap;
        }
        nav a {
            color: white;
            text-decoration: none;
            font-weight: 600;
            font-size: 1.1rem;
            padding: 0.5rem 1rem;
            border-radius: 4px;
            transition: all 0.3s ease;
            position: relative;
        }
        nav a:hover,
        nav a.active {
            background-color: rgba(255, 255, 255, 0.15);
            color: #ffd700;
        }
        nav a::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 50%;
            width: 0;
            height: 2px;
            background: #ffd700;
            transition: all 0.3s ease;
            transform: translateX(-50%);
        }
        nav a:hover::after {
            width: 80%;
        }
        .hamburger {
            display: none;
            font-size: 1.8rem;
            cursor: pointer;
            color: white;
        }
        .breadcrumb {
            background-color: #e3f2fd;
            padding: 0.8rem 0;
            font-size: 0.9rem;
            margin-bottom: 2rem;
            border-bottom: 1px solid #bbdefb;
        }
        .breadcrumb a {
            color: #1a237e;
            text-decoration: none;
            transition: color 0.3s;
        }
        .breadcrumb a:hover {
            color: #ff5722;
            text-decoration: underline;
        }
        .breadcrumb span {
            color: #757575;
        }
        main {
            padding: 2rem 0;
            background-color: white;
            border-radius: 8px;
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
            margin-bottom: 2rem;
        }
        article {
            padding: 0 2rem;
        }
        h1 {
            font-size: 2.8rem;
            color: #1a237e;
            margin-bottom: 1.5rem;
            line-height: 1.2;
            text-align: center;
            border-bottom: 3px solid #ffd700;
            padding-bottom: 1rem;
        }
        h2 {
            font-size: 2.2rem;
            color: #311b92;
            margin: 2.5rem 0 1.2rem;
            padding-left: 10px;
            border-left: 5px solid #ff9800;
        }
        h3 {
            font-size: 1.8rem;
            color: #5e35b1;
            margin: 2rem 0 1rem;
        }
        p {
            margin-bottom: 1.5rem;
            font-size: 1.1rem;
        }
        .lead {
            font-size: 1.3rem;
            font-weight: 500;
            color: #555;
            background-color: #f1f8ff;
            padding: 1.5rem;
            border-radius: 8px;
            border-left: 4px solid #2196f3;
            margin-bottom: 2rem;
        }
        .highlight {
            background-color: #fff9c4;
            padding: 0.3rem 0.6rem;
            border-radius: 4px;
            font-weight: 600;
            color: #333;
        }
        emoji {
            font-size: 1.4em;
            margin: 0 5px;
            vertical-align: middle;
        }
        .content-img {
            width: 100%;
            max-width: 800px;
            height: auto;
            border-radius: 10px;
            box-shadow: 0 8px 20px rgba(0, 0, 0, 0.15);
            display: block;
            margin: 2rem auto;
            transition: transform 0.5s ease, box-shadow 0.5s ease;
        }
        .content-img:hover {
            transform: scale(1.02);
            box-shadow: 0 12px 25px rgba(0, 0, 0, 0.2);
        }
        .caption {
            text-align: center;
            font-style: italic;
            color: #666;
            margin-top: 0.5rem;
            font-size: 0.95rem;
        }
        .data-box {
            background: linear-gradient(to right, #e8eaf6, #f3e5f5);
            border: 2px dashed #5c6bc0;
            border-radius: 10px;
            padding: 1.5rem;
            margin: 2rem 0;
        }
        .data-box h3 {
            color: #3949ab;
            margin-top: 0;
        }
        .quote {
            font-size: 1.2rem;
            color: #555;
            border-left: 5px solid #4caf50;
            padding-left: 1.5rem;
            margin: 2rem 0;
            font-style: italic;
            background-color: #f1f8e9;
            padding: 1.5rem;
            border-radius: 0 8px 8px 0;
        }
        .author {
            text-align: right;
            font-weight: bold;
            color: #2e7d32;
            margin-top: 0.5rem;
        }
        .interactive-section {
            background-color: #f5f5f5;
            border-radius: 10px;
            padding: 2rem;
            margin: 3rem 0;
            box-shadow: inset 0 0 10px rgba(0,0,0,0.05);
        }
        .interactive-section h2 {
            text-align: center;
            border: none;
            padding-left: 0;
        }
        .form-group {
            margin-bottom: 1.5rem;
        }
        label {
            display: block;
            margin-bottom: 0.5rem;
            font-weight: 600;
            color: #444;
        }
        input[type="text"],
        input[type="email"],
        textarea,
        select {
            width: 100%;
            padding: 0.8rem 1rem;
            border: 2px solid #ccc;
            border-radius: 6px;
            font-size: 1rem;
            transition: border 0.3s;
        }
        input[type="text"]:focus,
        input[type="email"]:focus,
        textarea:focus,
        select:focus {
            border-color: #5c6bc0;
            outline: none;
            box-shadow: 0 0 0 3px rgba(92, 107, 192, 0.2);
        }
        button {
            background: linear-gradient(to right, #ff9800, #ff5722);
            color: white;
            border: none;
            padding: 0.9rem 2rem;
            font-size: 1.1rem;
            border-radius: 6px;
            cursor: pointer;
            transition: all 0.3s ease;
            font-weight: 600;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 10px;
        }
        button:hover {
            background: linear-gradient(to right, #ff5722, #ff9800);
            transform: translateY(-3px);
            box-shadow: 0 7px 14px rgba(255, 87, 34, 0.3);
        }
        .rating {
            display: flex;
            gap: 10px;
            margin: 1rem 0;
            justify-content: center;
            flex-wrap: wrap;
        }
        .rating input {
            display: none;
        }
        .rating label {
            font-size: 2rem;
            color: #ddd;
            cursor: pointer;
            transition: color 0.2s;
        }
        .rating input:checked ~ label,
        .rating label:hover,
        .rating label:hover ~ label {
            color: #ffd700;
        }
        .long-tail-links {
            background-color: #263238;
            padding: 2rem 0;
            margin-top: 3rem;
        }
        .web-link {
            display: inline-block;
            margin: 0.8rem 1rem;
            padding: 0.6rem 1.2rem;
            background-color: #37474f;
            border-radius: 30px;
            transition: all 0.3s ease;
        }
        .web-link a {
            color: #bbdefb;
            text-decoration: none;
            font-size: 1rem;
        }
        .web-link:hover {
            background-color: #455a64;
            transform: translateY(-3px);
        }
        .web-link:hover a {
            color: white;
        }
        footer {
            background-color: #1a237e;
            color: white;
            text-align: center;
            padding: 2rem 0;
            font-size: 0.95rem;
        }
        .footer-container {
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 1rem;
        }
        .social-links {
            display: flex;
            gap: 1.5rem;
            margin: 1rem 0;
        }
        .social-links a {
            color: white;
            font-size: 1.5rem;
            transition: color 0.3s, transform 0.3s;
        }
        .social-links a:hover {
            color: #ffd700;
            transform: scale(1.2);
        }
        @media (max-width: 992px) {
            h1 { font-size: 2.4rem; }
            h2 { font-size: 2rem; }
            nav ul { gap: 1rem; }
        }
        @media (max-width: 768px) {
            .header-container { flex-direction: column; align-items: flex-start; }
            nav { width: 100%; margin-top: 1rem; display: none; }
            nav.active { display: block; }
            nav ul { flex-direction: column; gap: 0.5rem; }
            nav a { display: block; padding: 0.8rem; }
            .hamburger { display: block; position: absolute; top: 1.2rem; right: 20px; }
            .logo a { font-size: 1.8rem; }
            article { padding: 0 1rem; }
            .interactive-section { padding: 1.5rem; }
            .web-link { margin: 0.5rem; }
        }
        @media (max-width: 480px) {
            body { font-size: 16px; }
            h1 { font-size: 2rem; }
            h2 { font-size: 1.7rem; }
            .lead { font-size: 1.1rem; padding: 1rem; }
            .container { padding: 0 15px; }
        }