:root {
            --primary: #1a237e;
            --secondary: #ffc107;
            --accent: #e53935;
            --light: #f5f5f5;
            --dark: #212121;
            --gray: #757575;
            --shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
            --transition: all 0.3s ease;
            --border-radius: 8px;
            --max-width: 1200px;
        }
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
            font-size: 16px;
        }
        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            line-height: 1.7;
            color: var(--dark);
            background-color: var(--light);
            overflow-x: hidden;
        }
        a {
            color: var(--primary);
            text-decoration: none;
            transition: var(--transition);
        }
        a:hover {
            color: var(--accent);
        }
        ul {
            list-style: none;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        .container {
            width: 100%;
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 20px;
        }
        .btn {
            display: inline-block;
            padding: 12px 28px;
            background: var(--primary);
            color: white;
            border: none;
            border-radius: var(--border-radius);
            cursor: pointer;
            font-weight: 600;
            transition: var(--transition);
            text-align: center;
        }
        .btn:hover {
            background: var(--accent);
            color: white;
            transform: translateY(-2px);
            box-shadow: var(--shadow);
        }
        header {
            background: white;
            box-shadow: var(--shadow);
            position: sticky;
            top: 0;
            z-index: 1000;
        }
        .header-top {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 15px 0;
        }
        .my-logo {
            font-family: 'Impact', 'Arial Black', sans-serif;
            font-size: 2.2rem;
            color: var(--primary);
            text-transform: uppercase;
            letter-spacing: 2px;
            display: flex;
            align-items: center;
        }
        .my-logo i {
            color: var(--secondary);
            margin-right: 10px;
            font-size: 2.5rem;
        }
        .my-logo:hover {
            color: var(--accent);
        }
        .mobile-toggle {
            display: none;
            font-size: 1.8rem;
            background: none;
            border: none;
            color: var(--primary);
            cursor: pointer;
        }
        nav ul {
            display: flex;
            gap: 25px;
        }
        nav a {
            font-weight: 600;
            padding: 5px 0;
            position: relative;
        }
        nav a::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 0;
            height: 3px;
            background: var(--secondary);
            transition: width 0.3s;
        }
        nav a:hover::after {
            width: 100%;
        }
        .breadcrumb {
            background: #e8eaf6;
            padding: 12px 0;
            font-size: 0.9rem;
        }
        .breadcrumb ul {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
        }
        .breadcrumb li:not(:last-child)::after {
            content: '>';
            margin-left: 10px;
            color: var(--gray);
        }
        .search-box {
            max-width: 600px;
            margin: 40px auto;
            padding: 0 20px;
        }
        .search-form {
            display: flex;
            box-shadow: var(--shadow);
            border-radius: 50px;
            overflow: hidden;
        }
        .search-form input {
            flex: 1;
            padding: 18px 25px;
            border: none;
            font-size: 1.1rem;
            outline: none;
        }
        .search-form button {
            background: var(--primary);
            color: white;
            border: none;
            padding: 0 30px;
            cursor: pointer;
            font-size: 1.2rem;
        }
        .search-form button:hover {
            background: var(--accent);
        }
        main {
            padding: 40px 0;
            background: white;
        }
        article {
            max-width: 900px;
            margin: 0 auto;
            padding: 20px;
        }
        h1 {
            font-size: 2.8rem;
            color: var(--primary);
            margin-bottom: 25px;
            line-height: 1.2;
            text-align: center;
        }
        .meta-info {
            text-align: center;
            color: var(--gray);
            margin-bottom: 40px;
            font-style: italic;
            border-bottom: 1px dashed #ddd;
            padding-bottom: 20px;
        }
        .last-updated {
            color: var(--accent);
            font-weight: bold;
        }
        h2 {
            font-size: 2rem;
            color: var(--primary);
            margin: 50px 0 20px;
            padding-bottom: 10px;
            border-bottom: 3px solid var(--secondary);
        }
        h3 {
            font-size: 1.6rem;
            color: var(--dark);
            margin: 35px 0 15px;
        }
        h4 {
            font-size: 1.3rem;
            color: var(--gray);
            margin: 25px 0 10px;
        }
        p {
            margin-bottom: 22px;
            text-align: justify;
        }
        .lead {
            font-size: 1.3rem;
            font-weight: 600;
            color: var(--dark);
            background: #f0f4ff;
            padding: 25px;
            border-left: 5px solid var(--primary);
            border-radius: var(--border-radius);
            margin-bottom: 35px;
        }
        .highlight {
            background: linear-gradient(120deg, #ffecb3 0%, #ffecb3 100%);
            padding: 3px 6px;
            border-radius: 4px;
            font-weight: 600;
        }
        .content-img {
            margin: 35px auto;
            border-radius: var(--border-radius);
            overflow: hidden;
            box-shadow: var(--shadow);
            max-width: 800px;
        }
        .content-img figcaption {
            text-align: center;
            padding: 10px;
            background: #f5f5f5;
            font-style: italic;
            color: var(--gray);
        }
        blockquote {
            border-left: 5px solid var(--secondary);
            padding: 25px;
            background: #fff9e6;
            margin: 35px 0;
            font-style: italic;
            border-radius: 0 var(--border-radius) var(--border-radius) 0;
        }
        blockquote p {
            margin-bottom: 0;
        }
        .link-list {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
            gap: 15px;
            margin: 30px 0;
            padding: 25px;
            background: #f8f9fa;
            border-radius: var(--border-radius);
        }
        .link-list a {
            display: flex;
            align-items: center;
            padding: 12px;
            background: white;
            border-radius: var(--border-radius);
            box-shadow: 0 2px 5px rgba(0,0,0,0.05);
        }
        .link-list a:hover {
            background: var(--primary);
            color: white;
            transform: translateX(5px);
        }
        .link-list i {
            margin-right: 10px;
            color: var(--secondary);
        }
        .interactive-section {
            background: #f0f7ff;
            padding: 40px;
            border-radius: var(--border-radius);
            margin: 50px 0;
            text-align: center;
        }
        .rating {
            display: flex;
            justify-content: center;
            gap: 5px;
            margin: 25px 0;
        }
        .rating input {
            display: none;
        }
        .rating label {
            font-size: 2rem;
            color: #ddd;
            cursor: pointer;
            transition: var(--transition);
        }
        .rating label:hover,
        .rating label:hover ~ label,
        .rating input:checked ~ label {
            color: var(--secondary);
        }
        .comment-form, .rating-form {
            max-width: 600px;
            margin: 30px auto 0;
            display: grid;
            gap: 20px;
        }
        .form-group {
            display: flex;
            flex-direction: column;
            text-align: left;
        }
        .form-group label {
            margin-bottom: 8px;
            font-weight: 600;
        }
        .form-group input,
        .form-group textarea,
        .form-group select {
            padding: 15px;
            border: 1px solid #ccc;
            border-radius: var(--border-radius);
            font-family: inherit;
            font-size: 1rem;
        }
        .form-group textarea {
            min-height: 150px;
            resize: vertical;
        }
        footer {
            background: var(--dark);
            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 {
            color: white;
            margin-bottom: 25px;
            font-size: 1.5rem;
        }
        .footer-section a {
            color: #ccc;
            display: block;
            margin-bottom: 12px;
        }
        .footer-section a:hover {
            color: var(--secondary);
            padding-left: 5px;
        }
        friend-link {
            display: block;
            background: #333;
            padding: 20px;
            border-radius: var(--border-radius);
            margin: 20px 0;
        }
        friend-link a {
            color: var(--secondary);
            font-weight: bold;
        }
        .copyright {
            text-align: center;
            padding-top: 30px;
            border-top: 1px solid #444;
            color: #aaa;
            font-size: 0.9rem;
        }
        @media (max-width: 992px) {
            h1 { font-size: 2.4rem; }
            h2 { font-size: 1.8rem; }
            .header-top { flex-wrap: wrap; }
            nav { order: 3; width: 100%; margin-top: 15px; }
            nav ul { justify-content: center; }
        }
        @media (max-width: 768px) {
            .mobile-toggle {
                display: block;
            }
            nav {
                display: none;
                order: unset;
                width: 100%;
            }
            nav.active {
                display: block;
            }
            nav ul {
                flex-direction: column;
                gap: 0;
                text-align: center;
            }
            nav li {
                border-bottom: 1px solid #eee;
            }
            nav a {
                display: block;
                padding: 15px;
            }
            h1 { font-size: 2rem; }
            .lead { font-size: 1.1rem; }
            .interactive-section { padding: 30px 20px; }
            .link-list { grid-template-columns: 1fr; }
        }
        @media (max-width: 480px) {
            html { font-size: 14px; }
            .btn { padding: 10px 20px; }
            .search-form input { padding: 15px; }
            .footer-content { grid-template-columns: 1fr; }
        }