* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            line-height: 1.6;
            color: #333;
            background-color: #f8f9fa;
            overflow-x: hidden;
        }
        a {
            text-decoration: none;
            color: inherit;
        }
        ul {
            list-style: none;
        }
        img {
            max-width: 100%;
            height: auto;
        }
        .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-top {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 15px 0;
        }
        .logo {
            font-size: 1.8rem;
            font-weight: 700;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .logo i {
            color: #ffc107;
        }
        .logo-text {
            background: linear-gradient(to right, #ffc107, #ff9800);
            -webkit-background-clip: text;
            background-clip: text;
            color: transparent;
            font-weight: 800;
        }
        .mobile-toggle {
            display: none;
            background: none;
            border: none;
            color: white;
            font-size: 1.5rem;
            cursor: pointer;
        }
        nav ul {
            display: flex;
            gap: 25px;
        }
        nav a {
            font-weight: 600;
            transition: color 0.3s;
            padding: 5px 0;
            position: relative;
        }
        nav a:hover {
            color: #ffc107;
        }
        nav a::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 0;
            height: 2px;
            background-color: #ffc107;
            transition: width 0.3s;
        }
        nav a:hover::after {
            width: 100%;
        }
        .breadcrumb {
            padding: 12px 0;
            background-color: rgba(255, 255, 255, 0.1);
            font-size: 0.9rem;
        }
        .breadcrumb ol {
            display: flex;
            gap: 10px;
        }
        .breadcrumb li:not(:last-child)::after {
            content: '›';
            margin-left: 10px;
        }
        .breadcrumb a:hover {
            color: #ffc107;
            text-decoration: underline;
        }
        .search-section {
            background-color: #e8eaf6;
            padding: 30px 0;
            margin-bottom: 40px;
        }
        .search-box {
            max-width: 600px;
            margin: 0 auto;
            text-align: center;
        }
        .search-box h2 {
            margin-bottom: 20px;
            color: #1a237e;
        }
        .search-form {
            display: flex;
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
            border-radius: 50px;
            overflow: hidden;
        }
        .search-input {
            flex: 1;
            padding: 15px 20px;
            border: none;
            font-size: 1rem;
        }
        .search-button {
            background: linear-gradient(to right, #1a237e, #283593);
            color: white;
            border: none;
            padding: 0 30px;
            cursor: pointer;
            transition: background 0.3s;
            font-weight: 600;
        }
        .search-button:hover {
            background: linear-gradient(to right, #283593, #3949ab);
        }
        main {
            padding: 40px 0;
        }
        .article-header {
            text-align: center;
            margin-bottom: 40px;
        }
        .article-header h1 {
            font-size: 2.5rem;
            color: #1a237e;
            margin-bottom: 15px;
            line-height: 1.2;
        }
        .article-meta {
            display: flex;
            justify-content: center;
            gap: 20px;
            color: #666;
            font-size: 0.9rem;
            margin-bottom: 20px;
        }
        .article-meta i {
            margin-right: 5px;
            color: #3949ab;
        }
        .featured-image {
            margin: 40px 0;
            border-radius: 10px;
            overflow: hidden;
            box-shadow: 0 8px 20px rgba(0, 0, 0, 0.1);
        }
        .featured-image img {
            width: 100%;
            display: block;
            transition: transform 0.5s;
        }
        .featured-image:hover img {
            transform: scale(1.02);
        }
        .image-caption {
            text-align: center;
            font-style: italic;
            color: #666;
            padding: 10px;
            background-color: #f5f5f5;
        }
        .content {
            font-size: 1.1rem;
            line-height: 1.8;
        }
        .content section {
            margin-bottom: 50px;
        }
        .content h2 {
            font-size: 1.8rem;
            color: #1a237e;
            margin: 30px 0 20px;
            padding-bottom: 10px;
            border-bottom: 2px solid #ffc107;
        }
        .content h3 {
            font-size: 1.5rem;
            color: #283593;
            margin: 25px 0 15px;
        }
        .content p {
            margin-bottom: 20px;
            text-align: justify;
        }
        .content ul, .content ol {
            margin-left: 30px;
            margin-bottom: 20px;
        }
        .content li {
            margin-bottom: 10px;
        }
        .highlight {
            background-color: #e8eaf6;
            padding: 25px;
            border-left: 5px solid #3949ab;
            margin: 30px 0;
            border-radius: 0 10px 10px 0;
        }
        .highlight p {
            margin-bottom: 0;
            font-weight: 600;
            color: #1a237e;
        }
        .emoji {
            font-size: 1.2em;
            margin-right: 5px;
        }
        .download-box {
            background: linear-gradient(135deg, #1a237e 0%, #283593 100%);
            color: white;
            padding: 30px;
            border-radius: 10px;
            text-align: center;
            margin: 40px 0;
            box-shadow: 0 8px 20px rgba(26, 35, 126, 0.2);
        }
        .download-box h3 {
            color: white;
            margin-bottom: 20px;
        }
        .download-button {
            display: inline-block;
            background: linear-gradient(to right, #ffc107, #ff9800);
            color: #1a237e;
            padding: 15px 40px;
            border-radius: 50px;
            font-weight: 700;
            font-size: 1.2rem;
            margin-top: 15px;
            transition: transform 0.3s, box-shadow 0.3s;
            box-shadow: 0 4px 10px rgba(255, 152, 0, 0.3);
        }
        .download-button:hover {
            transform: translateY(-5px);
            box-shadow: 0 6px 15px rgba(255, 152, 0, 0.4);
        }
        .interactive-section {
            background-color: white;
            border-radius: 10px;
            padding: 30px;
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
            margin: 40px 0;
        }
        .interactive-section h2 {
            margin-top: 0;
        }
        .rating-form, .comment-form {
            display: grid;
            gap: 20px;
            margin-top: 20px;
        }
        .star-rating {
            display: flex;
            gap: 10px;
            font-size: 1.5rem;
            color: #ddd;
            margin-bottom: 10px;
        }
        .star-rating i {
            cursor: pointer;
            transition: color 0.2s;
        }
        .star-rating i:hover,
        .star-rating i.active {
            color: #ffc107;
        }
        .form-group {
            display: flex;
            flex-direction: column;
            gap: 8px;
        }
        .form-group label {
            font-weight: 600;
            color: #555;
        }
        .form-control {
            padding: 12px 15px;
            border: 1px solid #ddd;
            border-radius: 5px;
            font-size: 1rem;
            font-family: inherit;
        }
        .form-control:focus {
            outline: none;
            border-color: #3949ab;
            box-shadow: 0 0 0 2px rgba(57, 73, 171, 0.2);
        }
        textarea.form-control {
            min-height: 150px;
            resize: vertical;
        }
        .submit-button {
            background: linear-gradient(to right, #1a237e, #283593);
            color: white;
            border: none;
            padding: 15px;
            border-radius: 5px;
            font-size: 1rem;
            font-weight: 600;
            cursor: pointer;
            transition: background 0.3s;
            justify-self: start;
        }
        .submit-button:hover {
            background: linear-gradient(to right, #283593, #3949ab);
        }
        .web-links {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
            gap: 15px;
            margin: 50px 0;
        }
        .web-link {
            background-color: white;
            padding: 15px;
            border-radius: 5px;
            box-shadow: 0 3px 10px rgba(0, 0, 0, 0.05);
            transition: transform 0.3s, box-shadow 0.3s;
            border-left: 4px solid #3949ab;
        }
        .web-link:hover {
            transform: translateY(-5px);
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
        }
        .web-link a {
            color: #1a237e;
            font-weight: 600;
            display: block;
        }
        .web-link a:hover {
            color: #ff9800;
        }
        footer {
            background-color: #1a237e;
            color: white;
            padding: 50px 0 20px;
        }
        .footer-content {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 40px;
            margin-bottom: 40px;
        }
        .footer-section h3 {
            font-size: 1.3rem;
            margin-bottom: 20px;
            color: #ffc107;
        }
        .footer-section ul {
            display: flex;
            flex-direction: column;
            gap: 10px;
        }
        .footer-section a {
            transition: color 0.3s;
        }
        .footer-section a:hover {
            color: #ffc107;
        }
        .social-icons {
            display: flex;
            gap: 15px;
            margin-top: 20px;
        }
        .social-icons a {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            background-color: rgba(255, 255, 255, 0.1);
            border-radius: 50%;
            transition: background-color 0.3s, transform 0.3s;
        }
        .social-icons a:hover {
            background-color: #ffc107;
            color: #1a237e;
            transform: translateY(-5px);
        }
        .copyright {
            text-align: center;
            padding-top: 30px;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            font-size: 0.9rem;
            color: #ccc;
        }
        @media (max-width: 992px) {
            .article-header h1 {
                font-size: 2rem;
            }
            .content h2 {
                font-size: 1.6rem;
            }
        }
        @media (max-width: 768px) {
            .mobile-toggle {
                display: block;
            }
            nav {
                position: absolute;
                top: 100%;
                left: 0;
                width: 100%;
                background-color: #1a237e;
                padding: 0;
                max-height: 0;
                overflow: hidden;
                transition: max-height 0.5s ease;
                box-shadow: 0 5px 10px rgba(0, 0, 0, 0.1);
            }
            nav.active {
                max-height: 300px;
                padding: 20px 0;
            }
            nav ul {
                flex-direction: column;
                gap: 0;
            }
            nav li {
                text-align: center;
                padding: 12px 0;
                border-bottom: 1px solid rgba(255, 255, 255, 0.1);
            }
            .breadcrumb {
                font-size: 0.8rem;
            }
            .article-header h1 {
                font-size: 1.8rem;
            }
            .content h2 {
                font-size: 1.5rem;
            }
            .content h3 {
                font-size: 1.3rem;
            }
            .web-links {
                grid-template-columns: 1fr;
            }
            .footer-content {
                grid-template-columns: 1fr;
                gap: 30px;
            }
        }
        @media (max-width: 576px) {
            .container {
                padding: 0 15px;
            }
            .article-header h1 {
                font-size: 1.6rem;
            }
            .article-meta {
                flex-direction: column;
                gap: 10px;
                align-items: center;
            }
            .search-form {
                flex-direction: column;
                border-radius: 10px;
            }
            .search-input, .search-button {
                width: 100%;
                border-radius: 0;
            }
            .download-button {
                padding: 12px 30px;
                font-size: 1.1rem;
            }
        }