* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        :root {
            --primary-color: #1a365d;
            --secondary-color: #2d3748;
            --accent-color: #e53e3e;
            --text-color: #2d3748;
            --light-bg: #f7fafc;
            --white: #ffffff;
            --shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
            --transition: all 0.3s ease;
        }
        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            line-height: 1.6;
            color: var(--text-color);
            background-color: var(--light-bg);
        }
        header {
            background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
            color: var(--white);
            padding: 1rem 0;
            box-shadow: var(--shadow);
            position: sticky;
            top: 0;
            z-index: 1000;
        }
        .header-container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 1rem;
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .logo {
            font-size: 1.8rem;
            font-weight: bold;
            text-decoration: none;
            color: var(--white);
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }
        .logo i {
            color: var(--accent-color);
        }
        nav ul {
            display: flex;
            list-style: none;
            gap: 2rem;
        }
        nav a {
            color: var(--white);
            text-decoration: none;
            font-weight: 500;
            transition: var(--transition);
            padding: 0.5rem 1rem;
            border-radius: 4px;
        }
        nav a:hover {
            background-color: rgba(255, 255, 255, 0.1);
            transform: translateY(-2px);
        }
        .hamburger {
            display: none;
            flex-direction: column;
            cursor: pointer;
            gap: 4px;
        }
        .hamburger span {
            width: 25px;
            height: 3px;
            background-color: var(--white);
            transition: var(--transition);
        }
        .breadcrumb {
            max-width: 1200px;
            margin: 1rem auto;
            padding: 0 1rem;
            font-size: 0.9rem;
        }
        .breadcrumb a {
            color: var(--primary-color);
            text-decoration: none;
        }
        .breadcrumb a:hover {
            text-decoration: underline;
        }
        main {
            max-width: 1200px;
            margin: 0 auto;
            padding: 2rem 1rem;
            background-color: var(--white);
            box-shadow: var(--shadow);
            border-radius: 8px;
        }
        .search-section {
            background-color: var(--light-bg);
            padding: 2rem;
            border-radius: 8px;
            margin-bottom: 2rem;
            text-align: center;
        }
        .search-form {
            display: flex;
            max-width: 600px;
            margin: 0 auto;
        }
        .search-input {
            flex: 1;
            padding: 0.75rem 1rem;
            border: 2px solid #e2e8f0;
            border-radius: 4px 0 0 4px;
            font-size: 1rem;
        }
        .search-button {
            background-color: var(--accent-color);
            color: var(--white);
            border: none;
            padding: 0 1.5rem;
            border-radius: 0 4px 4px 0;
            cursor: pointer;
            transition: var(--transition);
        }
        .search-button:hover {
            background-color: #c53030;
        }
        article {
            line-height: 1.8;
        }
        h1, h2, h3 {
            color: var(--primary-color);
            margin: 2rem 0 1rem;
        }
        h1 {
            font-size: 2.5rem;
            text-align: center;
            border-bottom: 3px solid var(--accent-color);
            padding-bottom: 1rem;
        }
        h2 {
            font-size: 1.8rem;
            border-left: 4px solid var(--accent-color);
            padding-left: 1rem;
        }
        h3 {
            font-size: 1.4rem;
            color: var(--secondary-color);
        }
        p {
            margin-bottom: 1.5rem;
            text-align: justify;
        }
        .highlight {
            background-color: #fffacd;
            padding: 0.25rem 0.5rem;
            border-radius: 4px;
            font-weight: bold;
        }
        .feature-list {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 1.5rem;
            margin: 2rem 0;
        }
        .feature-card {
            background-color: var(--light-bg);
            padding: 1.5rem;
            border-radius: 8px;
            box-shadow: var(--shadow);
            transition: var(--transition);
        }
        .feature-card:hover {
            transform: translateY(-5px);
            box-shadow: 0 6px 12px rgba(0, 0, 0, 0.15);
        }
        .feature-card i {
            font-size: 2rem;
            color: var(--accent-color);
            margin-bottom: 1rem;
        }
        .image-section {
            text-align: center;
            margin: 2rem 0;
        }
        .main-image {
            max-width: 100%;
            height: auto;
            border-radius: 8px;
            box-shadow: var(--shadow);
        }
        .rating-section {
            background-color: var(--light-bg);
            padding: 2rem;
            border-radius: 8px;
            margin: 2rem 0;
            text-align: center;
        }
        .rating-stars {
            font-size: 2rem;
            color: #ffc107;
            margin: 1rem 0;
        }
        .rating-form {
            max-width: 400px;
            margin: 0 auto;
        }
        .rating-input {
            width: 100%;
            margin: 1rem 0;
        }
        .comment-section {
            margin: 3rem 0;
        }
        .comment-form {
            background-color: var(--light-bg);
            padding: 2rem;
            border-radius: 8px;
            margin-bottom: 2rem;
        }
        .form-group {
            margin-bottom: 1.5rem;
        }
        .form-group label {
            display: block;
            margin-bottom: 0.5rem;
            font-weight: bold;
        }
        .form-control {
            width: 100%;
            padding: 0.75rem;
            border: 2px solid #e2e8f0;
            border-radius: 4px;
            font-size: 1rem;
            transition: var(--transition);
        }
        .form-control:focus {
            border-color: var(--accent-color);
            outline: none;
        }
        textarea.form-control {
            min-height: 150px;
            resize: vertical;
        }
        .submit-button {
            background-color: var(--accent-color);
            color: var(--white);
            border: none;
            padding: 0.75rem 2rem;
            border-radius: 4px;
            cursor: pointer;
            font-size: 1rem;
            transition: var(--transition);
        }
        .submit-button:hover {
            background-color: #c53030;
            transform: translateY(-2px);
        }
        .footer-links {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 1rem;
            margin: 3rem 0;
        }
        .web-link {
            background-color: var(--light-bg);
            padding: 1rem;
            border-radius: 4px;
            text-align: center;
            transition: var(--transition);
        }
        .web-link:hover {
            background-color: #e2e8f0;
            transform: translateY(-2px);
        }
        .web-link a {
            color: var(--primary-color);
            text-decoration: none;
            font-weight: 500;
        }
        .web-link a:hover {
            text-decoration: underline;
        }
        footer {
            background-color: var(--secondary-color);
            color: var(--white);
            padding: 2rem 0;
            margin-top: 3rem;
        }
        .footer-container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 1rem;
            text-align: center;
        }
        .copyright {
            margin-top: 1rem;
            font-size: 0.9rem;
            opacity: 0.8;
        }
        @media (max-width: 768px) {
            .hamburger {
                display: flex;
            }
            nav ul {
                display: none;
                flex-direction: column;
                position: absolute;
                top: 100%;
                left: 0;
                right: 0;
                background-color: var(--primary-color);
                padding: 1rem;
                box-shadow: var(--shadow);
            }
            nav ul.active {
                display: flex;
            }
            h1 {
                font-size: 2rem;
            }
            h2 {
                font-size: 1.5rem;
            }
            .feature-list {
                grid-template-columns: 1fr;
            }
            .search-form {
                flex-direction: column;
            }
            .search-input {
                border-radius: 4px;
                margin-bottom: 0.5rem;
            }
            .search-button {
                border-radius: 4px;
                padding: 0.75rem;
            }
        }