:root {
            --primary-color: #1a365d; 
            --secondary-color: #2b6cb0; 
            --accent-color: #63b3ed; 
            --frost-color: #90cdf4; 
            --text-color: #2d3748;
            --light-text: #f7fafc;
            --bg-color: #f8f9fa;
            --card-bg: #ffffff;
            --border-color: #e2e8f0;
            --shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
            --transition: all 0.3s ease;
            --max-width: 1280px;
        }
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
        }
        body {
            background-color: var(--bg-color);
            color: var(--text-color);
            line-height: 1.7;
            overflow-x: hidden;
        }
        a {
            color: var(--secondary-color);
            text-decoration: none;
            transition: var(--transition);
        }
        a:hover {
            color: var(--accent-color);
        }
        .container {
            width: 100%;
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 20px;
        }
        header {
            background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
            color: var(--light-text);
            padding: 1rem 0;
            box-shadow: var(--shadow);
            position: sticky;
            top: 0;
            z-index: 1000;
        }
        .header-container {
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
        }
        .my-logo {
            font-size: 2.2rem;
            font-weight: 800;
            text-transform: uppercase;
            letter-spacing: 2px;
            background: linear-gradient(to right, var(--frost-color), #ffffff);
            -webkit-background-clip: text;
            background-clip: text;
            color: transparent;
            text-shadow: 0 2px 4px rgba(0,0,0,0.2);
        }
        .my-logo:hover {
            transform: scale(1.03);
        }
        nav ul {
            display: flex;
            list-style: none;
            gap: 1.8rem;
            flex-wrap: wrap;
        }
        nav a {
            color: var(--light-text);
            font-weight: 600;
            padding: 0.5rem 0.8rem;
            border-radius: 4px;
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }
        nav a:hover, nav a.active {
            background-color: rgba(255, 255, 255, 0.15);
            color: var(--frost-color);
        }
        .hamburger {
            display: none;
            font-size: 1.8rem;
            background: none;
            border: none;
            color: white;
            cursor: pointer;
        }
        .breadcrumb {
            padding: 1rem 0;
            background-color: var(--card-bg);
            border-bottom: 1px solid var(--border-color);
            font-size: 0.9rem;
        }
        .breadcrumb ol {
            display: flex;
            flex-wrap: wrap;
            list-style: none;
        }
        .breadcrumb li:not(:last-child)::after {
            content: '›';
            margin: 0 10px;
            color: var(--secondary-color);
        }
        main {
            padding: 2rem 0;
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 2.5rem;
        }
        @media (max-width: 992px) {
            main {
                grid-template-columns: 1fr;
            }
        }
        article {
            background-color: var(--card-bg);
            border-radius: 12px;
            padding: 2.5rem;
            box-shadow: var(--shadow);
        }
        h1, h2, h3, h4 {
            color: var(--primary-color);
            margin-top: 1.8rem;
            margin-bottom: 1rem;
            line-height: 1.3;
        }
        h1 {
            font-size: 2.8rem;
            border-bottom: 3px solid var(--frost-color);
            padding-bottom: 0.8rem;
        }
        h2 {
            font-size: 2.1rem;
            padding-left: 0.8rem;
            border-left: 5px solid var(--accent-color);
        }
        h3 {
            font-size: 1.7rem;
            color: var(--secondary-color);
        }
        h4 {
            font-size: 1.4rem;
            color: var(--text-color);
        }
        p {
            margin-bottom: 1.5rem;
            font-size: 1.1rem;
        }
        strong {
            color: var(--primary-color);
            font-weight: 700;
        }
        .emoji {
            font-size: 1.2em;
            margin-right: 5px;
        }
        .highlight-box {
            background: linear-gradient(to right, #f0f9ff, #e6f7ff);
            border-left: 5px solid var(--accent-color);
            padding: 1.5rem;
            margin: 2rem 0;
            border-radius: 0 8px 8px 0;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            margin: 2rem auto;
            border-radius: 10px;
            box-shadow: var(--shadow);
            border: 1px solid var(--border-color);
        }
        figcaption {
            text-align: center;
            font-style: italic;
            color: #666;
            margin-top: 0.5rem;
        }
        .interactive-section {
            background-color: #f8fafc;
            border: 1px dashed var(--accent-color);
            border-radius: 10px;
            padding: 2rem;
            margin: 3rem 0;
        }
        .search-form, .comment-form, .rating-form {
            display: flex;
            flex-direction: column;
            gap: 1rem;
            max-width: 500px;
            margin: 1.5rem 0;
        }
        input, textarea, select {
            padding: 0.8rem 1rem;
            border: 1px solid var(--border-color);
            border-radius: 6px;
            font-size: 1rem;
            transition: var(--transition);
        }
        input:focus, textarea:focus, select:focus {
            outline: none;
            border-color: var(--accent-color);
            box-shadow: 0 0 0 3px rgba(99, 179, 237, 0.2);
        }
        button {
            background: linear-gradient(to right, var(--secondary-color), var(--accent-color));
            color: white;
            border: none;
            padding: 0.9rem 1.8rem;
            border-radius: 6px;
            cursor: pointer;
            font-weight: 600;
            font-size: 1rem;
            transition: var(--transition);
        }
        button:hover {
            transform: translateY(-2px);
            box-shadow: 0 6px 12px rgba(43, 108, 176, 0.3);
        }
        .stars {
            display: flex;
            gap: 0.5rem;
            font-size: 1.8rem;
            color: #ffc107;
            margin: 1rem 0;
        }
        .stars i {
            cursor: pointer;
        }
        aside {
            background-color: var(--card-bg);
            border-radius: 12px;
            padding: 1.8rem;
            box-shadow: var(--shadow);
            align-self: start;
            position: sticky;
            top: 120px;
        }
        aside h3 {
            margin-top: 0;
            color: var(--primary-color);
            padding-bottom: 0.8rem;
            border-bottom: 2px solid var(--border-color);
        }
        aside ul {
            list-style: none;
            margin-top: 1rem;
        }
        aside li {
            margin-bottom: 0.8rem;
            padding-bottom: 0.8rem;
            border-bottom: 1px dotted var(--border-color);
        }
        aside a {
            display: flex;
            align-items: center;
            gap: 0.7rem;
        }
        .last-updated {
            font-size: 0.9rem;
            color: #718096;
            text-align: right;
            margin-top: 2rem;
            font-style: italic;
        }
        footer {
            background-color: var(--primary-color);
            color: var(--light-text);
            padding: 3rem 0 1.5rem;
            margin-top: 3rem;
        }
        .footer-content {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 2rem;
            margin-bottom: 2rem;
        }
        friend-link {
            display: block;
            margin: 1rem 0;
            padding: 0.8rem;
            background-color: rgba(255, 255, 255, 0.05);
            border-radius: 6px;
            transition: var(--transition);
        }
        friend-link:hover {
            background-color: rgba(255, 255, 255, 0.1);
        }
        .copyright {
            text-align: center;
            padding-top: 1.5rem;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            font-size: 0.9rem;
            color: #a0aec0;
        }
        @media (max-width: 768px) {
            .header-container {
                flex-direction: column;
                align-items: flex-start;
                gap: 1rem;
            }
            nav ul {
                flex-direction: column;
                width: 100%;
                display: none;
                margin-top: 1rem;
            }
            nav ul.active {
                display: flex;
            }
            .hamburger {
                display: block;
                position: absolute;
                top: 1.2rem;
                right: 20px;
            }
            h1 {
                font-size: 2.2rem;
            }
            h2 {
                font-size: 1.8rem;
            }
            article {
                padding: 1.5rem;
            }
        }