:root {
            --primary-green: #2e8b57;
            --secondary-green: #3cb371;
            --accent-brown: #8b4513;
            --light-bg: #f5f5f5;
            --text-dark: #333;
            --text-light: #666;
            --white: #ffffff;
            --shadow: 0 4px 12px rgba(0,0,0,0.08);
            --border-radius: 12px;
            --transition: all 0.3s ease;
        }
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            line-height: 1.7;
            color: var(--text-dark);
            background-color: var(--light-bg);
            overflow-x: hidden;
        }
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        header {
            background-color: var(--white);
            box-shadow: var(--shadow);
            position: sticky;
            top: 0;
            z-index: 1000;
        }
        .header-top {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 1rem 0;
        }
        .logo a {
            font-size: 2.2rem;
            font-weight: 800;
            text-decoration: none;
            color: var(--primary-green);
            letter-spacing: -0.5px;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .logo-icon {
            color: var(--accent-brown);
        }
        .desktop-nav ul {
            display: flex;
            list-style: none;
            gap: 2rem;
        }
        .desktop-nav a {
            text-decoration: none;
            color: var(--text-dark);
            font-weight: 600;
            font-size: 1.1rem;
            padding: 0.5rem 1rem;
            border-radius: 50px;
            transition: var(--transition);
        }
        .desktop-nav a:hover {
            background-color: var(--primary-green);
            color: white;
        }
        .mobile-nav-toggle {
            display: none;
            background: none;
            border: none;
            font-size: 1.8rem;
            color: var(--primary-green);
            cursor: pointer;
        }
        .mobile-nav {
            display: none;
            flex-direction: column;
            background: var(--white);
            padding: 1rem;
            box-shadow: var(--shadow);
        }
        .mobile-nav.active {
            display: flex;
        }
        .mobile-nav ul {
            list-style: none;
        }
        .mobile-nav li {
            margin: 1rem 0;
        }
        .mobile-nav a {
            text-decoration: none;
            color: var(--text-dark);
            font-weight: 600;
            font-size: 1.2rem;
            display: block;
            padding: 0.8rem;
            border-radius: var(--border-radius);
            transition: var(--transition);
        }
        .mobile-nav a:hover {
            background-color: var(--light-bg);
        }
        .breadcrumb {
            padding: 1rem 0;
            background-color: #f9f9f9;
            border-bottom: 1px solid #eee;
            font-size: 0.95rem;
        }
        .breadcrumb a {
            color: var(--primary-green);
            text-decoration: none;
        }
        .breadcrumb a:hover {
            text-decoration: underline;
        }
        main {
            padding: 2rem 0;
        }
        article {
            background: var(--white);
            border-radius: var(--border-radius);
            box-shadow: var(--shadow);
            padding: 3rem;
            margin-bottom: 3rem;
        }
        h1 {
            font-size: 2.8rem;
            color: var(--primary-green);
            margin-bottom: 1.5rem;
            line-height: 1.2;
        }
        h2 {
            font-size: 2rem;
            color: var(--accent-brown);
            margin: 2.5rem 0 1.2rem;
            padding-bottom: 0.5rem;
            border-bottom: 3px solid var(--secondary-green);
        }
        h3 {
            font-size: 1.6rem;
            color: var(--primary-green);
            margin: 2rem 0 1rem;
        }
        p {
            margin-bottom: 1.5rem;
            font-size: 1.15rem;
            color: var(--text-light);
            text-align: justify;
        }
        .lead {
            font-size: 1.4rem;
            color: var(--text-dark);
            font-weight: 500;
            margin-bottom: 2rem;
            padding: 1.5rem;
            background-color: #f0f8f0;
            border-left: 5px solid var(--primary-green);
            border-radius: 0 var(--border-radius) var(--border-radius) 0;
        }
        .highlight {
            background-color: #fffacd;
            padding: 1.5rem;
            border-radius: var(--border-radius);
            border-left: 5px solid #ffd700;
            margin: 2rem 0;
        }
        .emoji {
            font-size: 1.3em;
            margin-right: 8px;
        }
        .feature-img {
            width: 100%;
            max-height: 500px;
            object-fit: cover;
            border-radius: var(--border-radius);
            margin: 2.5rem 0;
            box-shadow: 0 8px 20px rgba(0,0,0,0.15);
            border: 5px solid white;
        }
        .interaction-modules {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 2rem;
            margin: 3rem 0;
        }
        .module {
            background: var(--white);
            border-radius: var(--border-radius);
            padding: 2rem;
            box-shadow: var(--shadow);
        }
        .module h3 {
            margin-top: 0;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        form {
            display: flex;
            flex-direction: column;
            gap: 1rem;
        }
        input, textarea, select {
            padding: 0.9rem;
            border: 2px solid #ddd;
            border-radius: 8px;
            font-family: inherit;
            font-size: 1rem;
            transition: var(--transition);
        }
        input:focus, textarea:focus, select:focus {
            outline: none;
            border-color: var(--primary-green);
        }
        button {
            background-color: var(--primary-green);
            color: white;
            border: none;
            padding: 1rem 2rem;
            border-radius: 50px;
            font-weight: 700;
            font-size: 1.1rem;
            cursor: pointer;
            transition: var(--transition);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 10px;
        }
        button:hover {
            background-color: var(--secondary-green);
            transform: translateY(-3px);
            box-shadow: 0 6px 12px rgba(46, 139, 87, 0.3);
        }
        .star-rating {
            display: flex;
            gap: 5px;
            margin: 1rem 0;
            direction: ltr;
        }
        .star {
            font-size: 1.8rem;
            color: #ddd;
            cursor: pointer;
            transition: var(--transition);
        }
        .star:hover,
        .star.active {
            color: #ffc107;
        }
        .longtail-links {
            background: var(--white);
            padding: 3rem;
            border-radius: var(--border-radius);
            margin: 2rem 0;
        }
        .web-link {
            display: inline-block;
            margin: 0.8rem 1.5rem 0.8rem 0;
            padding: 0.8rem 1.5rem;
            background-color: #f0f8f0;
            border-radius: 50px;
            text-decoration: none;
            color: var(--primary-green);
            font-weight: 600;
            transition: var(--transition);
        }
        .web-link:hover {
            background-color: var(--primary-green);
            color: white;
            transform: translateY(-3px);
        }
        footer {
            background-color: #2c3e50;
            color: #ecf0f1;
            padding: 3rem 0 1.5rem;
            text-align: center;
        }
        .copyright {
            margin-top: 2rem;
            padding-top: 2rem;
            border-top: 1px solid #4a5f7a;
            font-size: 0.95rem;
            color: #bdc3c7;
        }
        @media (max-width: 992px) {
            h1 { font-size: 2.4rem; }
            h2 { font-size: 1.8rem; }
            article { padding: 2rem; }
        }
        @media (max-width: 768px) {
            .desktop-nav { display: none; }
            .mobile-nav-toggle { display: block; }
            .header-top { padding: 1rem 0; }
            h1 { font-size: 2rem; }
            h2 { font-size: 1.6rem; }
            .interaction-modules {
                grid-template-columns: 1fr;
            }
            .longtail-links {
                padding: 2rem;
            }
            .web-link {
                display: block;
                margin: 0.8rem 0;
                text-align: center;
            }
        }
        @media (max-width: 480px) {
            article { padding: 1.5rem; }
            .module { padding: 1.5rem; }
            .lead { font-size: 1.2rem; }
        }