* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        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;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        header {
            background: linear-gradient(135deg, #1a237e, #4a148c);
            color: #fff;
            padding: 1rem 0;
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
        }
        .header-content {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .logo {
            font-size: 2.2rem;
            font-weight: 700;
            text-transform: uppercase;
            letter-spacing: 2px;
            color: #ffcc00;
            text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.5);
            transition: transform 0.3s ease;
        }
        .logo:hover {
            transform: scale(1.05);
        }
        .nav-desktop {
            display: flex;
            gap: 2rem;
        }
        @media (max-width: 768px) {
            .nav-desktop {
                display: none;
            }
        }
        .nav-desktop a {
            padding: 0.5rem 1rem;
            border-radius: 4px;
            transition: background-color 0.3s ease, color 0.3s ease;
            font-weight: 500;
        }
        .nav-desktop a:hover {
            background-color: #ffcc00;
            color: #1a237e;
        }
        .hamburger {
            display: none;
            font-size: 1.8rem;
            cursor: pointer;
            background: none;
            border: none;
            color: #fff;
        }
        @media (max-width: 768px) {
            .hamburger {
                display: block;
            }
        }
        .nav-mobile {
            display: none;
            flex-direction: column;
            background-color: #1a237e;
            position: absolute;
            top: 100%;
            left: 0;
            width: 100%;
            padding: 1rem;
            box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
        }
        .nav-mobile.active {
            display: flex;
        }
        .nav-mobile a {
            padding: 0.8rem 1rem;
            border-bottom: 1px solid #4a148c;
            transition: background-color 0.3s ease;
        }
        .nav-mobile a:hover {
            background-color: #4a148c;
        }
        .breadcrumb {
            padding: 1rem 0;
            background-color: #e8eaf6;
            font-size: 0.9rem;
        }
        .breadcrumb a {
            color: #1a237e;
        }
        .breadcrumb a:hover {
            text-decoration: underline;
        }
        main {
            padding: 2rem 0;
            background-color: #fff;
        }
        .article-header {
            text-align: center;
            margin-bottom: 2rem;
            padding: 1rem;
            border-bottom: 3px solid #ffcc00;
        }
        .article-header h1 {
            font-size: 2.8rem;
            color: #1a237e;
            margin-bottom: 0.5rem;
        }
        .article-meta {
            color: #666;
            font-style: italic;
        }
        .article-content {
            padding: 1rem;
        }
        .article-content h2 {
            font-size: 2rem;
            color: #4a148c;
            margin: 2rem 0 1rem;
            padding-bottom: 0.5rem;
            border-bottom: 2px solid #ffcc00;
        }
        .article-content h3 {
            font-size: 1.5rem;
            color: #1a237e;
            margin: 1.5rem 0 0.8rem;
        }
        .article-content p {
            margin-bottom: 1.2rem;
            font-size: 1.1rem;
            line-height: 1.8;
            text-align: justify;
        }
        .article-content strong {
            color: #d84315;
            font-weight: 700;
        }
        .article-content em {
            color: #388e3c;
            font-style: italic;
        }
        .highlight-box {
            background-color: #f3e5f5;
            border-left: 5px solid #7b1fa2;
            padding: 1.5rem;
            margin: 1.5rem 0;
            border-radius: 0 8px 8px 0;
        }
        .image-wrapper {
            margin: 2rem auto;
            text-align: center;
            max-width: 800px;
        }
        .image-wrapper img {
            border-radius: 12px;
            box-shadow: 0 6px 15px rgba(0, 0, 0, 0.15);
            transition: transform 0.4s ease;
        }
        .image-wrapper img:hover {
            transform: scale(1.02);
        }
        .image-caption {
            font-size: 0.95rem;
            color: #555;
            margin-top: 0.5rem;
            font-style: italic;
        }
        .functional-section {
            margin: 3rem 0;
            padding: 2rem;
            background-color: #f1f8e9;
            border-radius: 12px;
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
        }
        .functional-section h2 {
            color: #33691e;
            margin-bottom: 1.5rem;
        }
        .form-group {
            margin-bottom: 1.5rem;
        }
        .form-group label {
            display: block;
            margin-bottom: 0.5rem;
            font-weight: 600;
            color: #555;
        }
        .form-control {
            width: 100%;
            padding: 0.8rem;
            border: 2px solid #ccc;
            border-radius: 6px;
            font-size: 1rem;
            transition: border-color 0.3s ease;
        }
        .form-control:focus {
            border-color: #4a148c;
            outline: none;
        }
        .btn {
            background: linear-gradient(to right, #1a237e, #4a148c);
            color: #fff;
            padding: 0.8rem 1.5rem;
            border: none;
            border-radius: 6px;
            font-size: 1rem;
            cursor: pointer;
            transition: background 0.3s ease, transform 0.2s ease;
        }
        .btn:hover {
            background: linear-gradient(to right, #4a148c, #1a237e);
            transform: translateY(-2px);
        }
        .rating-stars {
            display: flex;
            gap: 0.5rem;
            margin-bottom: 1rem;
        }
        .rating-stars i {
            font-size: 1.8rem;
            color: #ddd;
            cursor: pointer;
            transition: color 0.3s ease;
        }
        .rating-stars i:hover,
        .rating-stars i.active {
            color: #ffcc00;
        }
        .comments-list {
            margin-top: 2rem;
        }
        .comment {
            background-color: #fff;
            padding: 1rem;
            margin-bottom: 1rem;
            border-radius: 8px;
            box-shadow: 0 2px 6px rgba(0, 0, 0, 0.05);
            border-left: 4px solid #4a148c;
        }
        .comment-author {
            font-weight: bold;
            color: #1a237e;
        }
        .comment-date {
            font-size: 0.85rem;
            color: #777;
        }
        .web-links {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
            gap: 1rem;
            padding: 2rem 0;
            background-color: #e8eaf6;
        }
        .web-link {
            background-color: #fff;
            padding: 1rem;
            border-radius: 6px;
            box-shadow: 0 2px 6px rgba(0, 0, 0, 0.05);
            transition: transform 0.3s ease, box-shadow 0.3s ease;
        }
        .web-link:hover {
            transform: translateY(-5px);
            box-shadow: 0 6px 12px rgba(0, 0, 0, 0.1);
        }
        .web-link a {
            color: #1a237e;
            font-weight: 500;
        }
        .web-link a:hover {
            text-decoration: underline;
            color: #ffcc00;
        }
        footer {
            background-color: #1a237e;
            color: #fff;
            padding: 2rem 0;
            text-align: center;
        }
        .footer-content p {
            margin-bottom: 0.5rem;
        }
        .footer-links {
            display: flex;
            justify-content: center;
            gap: 1.5rem;
            margin: 1rem 0;
        }
        .footer-links a {
            color: #ffcc00;
            transition: color 0.3s ease;
        }
        .footer-links a:hover {
            color: #fff;
        }
        @media (max-width: 768px) {
            .article-header h1 {
                font-size: 2rem;
            }
            .article-content h2 {
                font-size: 1.6rem;
            }
            .article-content h3 {
                font-size: 1.3rem;
            }
            .functional-section {
                padding: 1.5rem;
            }
            .web-links {
                grid-template-columns: 1fr;
            }
        }