:root {
            --primary: #2a9d8f;
            --secondary: #e76f51;
            --dark: #264653;
            --light: #f8f9fa;
            --gray: #6c757d;
            --shadow: 0 4px 12px rgba(0,0,0,0.08);
            --transition: all 0.3s ease;
        }
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
        }
        body {
            background-color: #fefefe;
            color: #333;
            line-height: 1.7;
            overflow-x: hidden;
        }
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        a {
            color: var(--primary);
            text-decoration: none;
            transition: var(--transition);
        }
        a:hover {
            color: var(--secondary);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        header {
            background-color: var(--dark);
            color: white;
            padding: 1rem 0;
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: var(--shadow);
        }
        .header-container {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .my-logo {
            font-size: 1.8rem;
            font-weight: 800;
            color: white;
            text-transform: uppercase;
            letter-spacing: 1px;
            background: linear-gradient(90deg, var(--primary), #a8dadc);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .my-logo:hover {
            opacity: 0.9;
        }
        nav ul {
            display: flex;
            list-style: none;
            gap: 1.5rem;
        }
        nav a {
            color: white;
            font-weight: 600;
            padding: 0.5rem 0;
            position: relative;
        }
        nav a::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 0;
            height: 2px;
            background: var(--secondary);
            transition: width 0.3s;
        }
        nav a:hover::after {
            width: 100%;
        }
        .hamburger {
            display: none;
            font-size: 1.5rem;
            cursor: pointer;
        }
        .breadcrumb {
            background: var(--light);
            padding: 0.8rem 0;
            font-size: 0.9rem;
            border-bottom: 1px solid #eee;
        }
        .breadcrumb a {
            color: var(--gray);
        }
        .breadcrumb span {
            color: var(--dark);
            font-weight: 600;
        }
        main {
            padding: 2rem 0;
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 2rem;
        }
        article {
            background: white;
            border-radius: 12px;
            overflow: hidden;
            box-shadow: var(--shadow);
        }
        .article-header {
            padding: 2rem;
            background: linear-gradient(135deg, var(--dark), var(--primary));
            color: white;
        }
        .article-header h1 {
            font-size: 2.5rem;
            margin-bottom: 1rem;
            line-height: 1.2;
        }
        .meta {
            display: flex;
            gap: 1rem;
            font-size: 0.9rem;
            opacity: 0.9;
        }
        .content {
            padding: 2rem;
        }
        h2 {
            color: var(--dark);
            font-size: 1.8rem;
            margin: 2rem 0 1rem;
            padding-bottom: 0.5rem;
            border-bottom: 2px solid var(--primary);
        }
        h3 {
            color: var(--primary);
            font-size: 1.4rem;
            margin: 1.5rem 0 0.8rem;
        }
        h4 {
            color: var(--secondary);
            font-size: 1.1rem;
            margin: 1.2rem 0 0.5rem;
        }
        p {
            margin-bottom: 1.2rem;
            text-align: justify;
        }
        strong {
            color: var(--dark);
            font-weight: 700;
        }
        .highlight {
            background-color: #fff9e6;
            border-left: 4px solid var(--secondary);
            padding: 1.2rem;
            margin: 1.5rem 0;
            border-radius: 0 8px 8px 0;
        }
        .image-container {
            margin: 2rem 0;
            text-align: center;
        }
        .image-container img {
            border-radius: 10px;
            box-shadow: var(--shadow);
            margin: 0 auto;
        }
        .caption {
            font-size: 0.9rem;
            color: var(--gray);
            margin-top: 0.5rem;
            font-style: italic;
        }
        .interactive-box {
            background: var(--light);
            border-radius: 10px;
            padding: 1.5rem;
            margin: 2rem 0;
            border: 1px solid #ddd;
        }
        .interactive-box h3 {
            margin-top: 0;
        }
        form {
            display: flex;
            flex-direction: column;
            gap: 1rem;
        }
        input, textarea, select {
            padding: 0.8rem;
            border: 1px solid #ccc;
            border-radius: 6px;
            font-size: 1rem;
            width: 100%;
        }
        button {
            background: var(--primary);
            color: white;
            border: none;
            padding: 0.8rem 1.5rem;
            border-radius: 6px;
            font-weight: 600;
            cursor: pointer;
            transition: var(--transition);
            align-self: flex-start;
        }
        button:hover {
            background: var(--secondary);
            transform: translateY(-2px);
        }
        .rating {
            display: flex;
            gap: 0.5rem;
            margin: 1rem 0;
        }
        .rating i {
            color: #ffc107;
            cursor: pointer;
            font-size: 1.5rem;
        }
        aside {
            background: white;
            border-radius: 12px;
            padding: 1.5rem;
            box-shadow: var(--shadow);
            align-self: start;
            position: sticky;
            top: 120px;
        }
        aside h3 {
            margin-top: 0;
        }
        .related-links ul {
            list-style: none;
            margin: 1rem 0;
        }
        .related-links li {
            margin-bottom: 0.8rem;
            padding-left: 1rem;
            position: relative;
        }
        .related-links li::before {
            content: '🔗';
            position: absolute;
            left: 0;
        }
        footer {
            background: var(--dark);
            color: white;
            padding: 2rem 0;
            margin-top: 3rem;
        }
        .footer-container {
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            gap: 2rem;
        }
        .footer-section {
            flex: 1;
            min-width: 250px;
        }
        .footer-section h4 {
            color: var(--secondary);
            margin-bottom: 1rem;
            font-size: 1.2rem;
        }
        friend-link {
            display: block;
            margin-bottom: 0.5rem;
            color: #a8dadc;
        }
        .copyright {
            text-align: center;
            margin-top: 2rem;
            padding-top: 1rem;
            border-top: 1px solid #3d5a80;
            font-size: 0.9rem;
            color: #ccc;
        }
        @media (max-width: 992px) {
            main {
                grid-template-columns: 1fr;
            }
            aside {
                position: static;
            }
        }
        @media (max-width: 768px) {
            .header-container {
                flex-wrap: wrap;
            }
            nav {
                width: 100%;
                order: 3;
                margin-top: 1rem;
                display: none;
            }
            nav.active {
                display: block;
            }
            nav ul {
                flex-direction: column;
                gap: 0;
            }
            nav li {
                border-bottom: 1px solid #3d5a80;
            }
            nav a {
                display: block;
                padding: 0.8rem;
            }
            .hamburger {
                display: block;
            }
            .article-header h1 {
                font-size: 2rem;
            }
            .footer-container {
                flex-direction: column;
            }
        }