:root {
            --primary-green: #2ecc71;
            --secondary-blue: #3498db;
            --accent-orange: #e67e22;
            --dark-bg: #2c3e50;
            --light-bg: #ecf0f1;
            --text-dark: #2c3e50;
            --text-light: #ffffff;
            --shadow: 0 4px 12px rgba(0,0,0,0.1);
            --border-radius: 8px;
            --transition: all 0.3s ease;
        }
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            line-height: 1.8;
            color: var(--text-dark);
            background-color: var(--light-bg);
            padding-top: 80px;
        }
        a {
            text-decoration: none;
            color: inherit;
            transition: var(--transition);
        }
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        header {
            background-color: var(--dark-bg);
            color: var(--text-light);
            position: fixed;
            top: 0;
            width: 100%;
            z-index: 1000;
            box-shadow: var(--shadow);
        }
        .header-container {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 15px 20px;
        }
        .my-logo {
            font-size: 2rem;
            font-weight: 800;
            color: var(--primary-green);
            display: flex;
            align-items: center;
        }
        .my-logo i {
            margin-right: 10px;
            color: var(--accent-orange);
        }
        .my-logo:hover {
            color: var(--secondary-blue);
        }
        nav {
            display: flex;
            align-items: center;
        }
        .nav-links {
            display: flex;
            list-style: none;
        }
        .nav-links li {
            margin-left: 30px;
        }
        .nav-links a {
            font-weight: 600;
            padding: 8px 12px;
            border-radius: var(--border-radius);
        }
        .nav-links a:hover {
            background-color: var(--primary-green);
            color: var(--text-light);
        }
        .hamburger {
            display: none;
            font-size: 1.8rem;
            cursor: pointer;
            color: var(--primary-green);
        }
        .breadcrumb {
            background-color: #34495e;
            padding: 12px 20px;
            font-size: 0.9rem;
        }
        .breadcrumb a {
            color: var(--secondary-blue);
        }
        .breadcrumb a:hover {
            text-decoration: underline;
        }
        main {
            padding: 40px 0;
        }
        article {
            background-color: white;
            border-radius: var(--border-radius);
            padding: 40px;
            box-shadow: var(--shadow);
            margin-bottom: 40px;
        }
        h1 {
            font-size: 2.8rem;
            color: var(--dark-bg);
            margin-bottom: 25px;
            line-height: 1.3;
            border-left: 6px solid var(--primary-green);
            padding-left: 20px;
        }
        h2 {
            font-size: 2rem;
            color: var(--secondary-blue);
            margin: 40px 0 20px;
            padding-bottom: 10px;
            border-bottom: 2px dashed var(--accent-orange);
        }
        h3 {
            font-size: 1.6rem;
            color: var(--accent-orange);
            margin: 30px 0 15px;
        }
        h4 {
            font-size: 1.3rem;
            color: var(--dark-bg);
            margin: 25px 0 10px;
        }
        p {
            margin-bottom: 20px;
            font-size: 1.1rem;
            text-align: justify;
        }
        .highlight {
            background-color: #fff9e6;
            border-left: 4px solid var(--accent-orange);
            padding: 20px;
            margin: 25px 0;
            border-radius: 0 var(--border-radius) var(--border-radius) 0;
        }
        .inline-link {
            color: var(--secondary-blue);
            font-weight: 600;
            border-bottom: 1px dotted var(--secondary-blue);
        }
        .inline-link:hover {
            color: var(--primary-green);
            border-bottom: 1px solid var(--primary-green);
        }
        .feature-img {
            width: 100%;
            max-height: 500px;
            object-fit: cover;
            border-radius: var(--border-radius);
            margin: 30px 0;
            box-shadow: var(--shadow);
        }
        .interactive-section {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 30px;
            margin: 50px 0;
        }
        .search-box, .comment-box, .rating-box {
            background-color: var(--light-bg);
            padding: 25px;
            border-radius: var(--border-radius);
            box-shadow: var(--shadow);
        }
        .interactive-section h3 {
            margin-top: 0;
            color: var(--dark-bg);
        }
        input, textarea, select {
            width: 100%;
            padding: 12px;
            margin: 10px 0;
            border: 1px solid #bdc3c7;
            border-radius: var(--border-radius);
            font-size: 1rem;
        }
        button {
            background-color: var(--primary-green);
            color: white;
            border: none;
            padding: 12px 25px;
            border-radius: var(--border-radius);
            cursor: pointer;
            font-weight: 600;
            font-size: 1rem;
            transition: var(--transition);
        }
        button:hover {
            background-color: var(--secondary-blue);
            transform: translateY(-3px);
        }
        .stars {
            display: flex;
            justify-content: center;
            margin: 15px 0;
        }
        .stars i {
            color: #f1c40f;
            font-size: 1.8rem;
            margin: 0 5px;
            cursor: pointer;
        }
        .update-time {
            font-style: italic;
            color: #7f8c8d;
            text-align: right;
            margin-top: 40px;
            padding-top: 20px;
            border-top: 1px solid #ecf0f1;
        }
        footer {
            background-color: var(--dark-bg);
            color: var(--text-light);
            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: var(--primary-green);
            margin-bottom: 20px;
            font-size: 1.5rem;
        }
        friend-link {
            display: block;
            margin: 10px 0;
            padding: 8px 15px;
            background-color: #34495e;
            border-radius: var(--border-radius);
            transition: var(--transition);
        }
        friend-link:hover {
            background-color: var(--primary-green);
            transform: translateX(10px);
        }
        .copyright {
            text-align: center;
            padding-top: 20px;
            border-top: 1px solid #34495e;
            color: #bdc3c7;
            font-size: 0.9rem;
        }
        @media (max-width: 992px) {
            h1 { font-size: 2.4rem; }
            h2 { font-size: 1.8rem; }
            h3 { font-size: 1.4rem; }
            article { padding: 30px; }
        }
        @media (max-width: 768px) {
            .hamburger { display: block; }
            .nav-links {
                position: fixed;
                top: 80px;
                left: -100%;
                width: 100%;
                height: calc(100vh - 80px);
                background-color: var(--dark-bg);
                flex-direction: column;
                align-items: center;
                justify-content: flex-start;
                padding-top: 40px;
                transition: var(--transition);
            }
            .nav-links.active {
                left: 0;
            }
            .nav-links li {
                margin: 20px 0;
            }
            .header-container {
                padding: 15px;
            }
            body {
                padding-top: 70px;
            }
            .interactive-section {
                grid-template-columns: 1fr;
            }
        }
        @media (max-width: 480px) {
            h1 { font-size: 2rem; }
            article { padding: 20px; }
            .footer-content {
                grid-template-columns: 1fr;
            }
        }