:root {
            --primary: #2E7D32;
            --secondary: #1B5E20;
            --accent: #FFC107;
            --light: #F1F8E9;
            --dark: #1A1A1A;
            --gray: #757575;
            --spacing-xs: 0.5rem;
            --spacing-sm: 1rem;
            --spacing-md: 2rem;
            --spacing-lg: 4rem;
            --border-radius: 8px;
            --shadow: 0 4px 12px rgba(0,0,0,0.1);
            --max-width: 1200px;
        }
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            background-color: #fff;
            color: var(--dark);
            line-height: 1.7;
            overflow-x: hidden;
        }
        a {
            color: var(--secondary);
            text-decoration: none;
            transition: color 0.3s ease;
        }
        a:hover {
            color: var(--accent);
            text-decoration: underline;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        .container {
            width: 100%;
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 var(--spacing-sm);
        }
        header {
            background-color: white;
            box-shadow: var(--shadow);
            position: sticky;
            top: 0;
            z-index: 1000;
        }
        .header-top {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: var(--spacing-sm) 0;
            border-bottom: 1px solid #eee;
        }
        .my-logo {
            font-size: 2.2rem;
            font-weight: 800;
            color: var(--primary);
            text-transform: uppercase;
            letter-spacing: -1px;
        }
        .my-logo span {
            color: var(--accent);
        }
        .search-form {
            display: flex;
            max-width: 400px;
            flex-grow: 1;
            margin: 0 var(--spacing-md);
        }
        .search-form input {
            flex-grow: 1;
            padding: 0.8rem 1rem;
            border: 2px solid #ddd;
            border-radius: var(--border-radius) 0 0 var(--border-radius);
            font-size: 1rem;
        }
        .search-form button {
            background-color: var(--primary);
            color: white;
            border: none;
            padding: 0.8rem 1.5rem;
            border-radius: 0 var(--border-radius) var(--border-radius) 0;
            cursor: pointer;
            transition: background-color 0.3s;
        }
        .search-form button:hover {
            background-color: var(--secondary);
        }
        .mobile-toggle {
            display: none;
            background: none;
            border: none;
            font-size: 1.8rem;
            color: var(--primary);
            cursor: pointer;
        }
        nav {
            padding: var(--spacing-xs) 0;
        }
        .nav-links {
            display: flex;
            list-style: none;
            justify-content: center;
            gap: var(--spacing-md);
        }
        .nav-links a {
            font-weight: 600;
            padding: 0.5rem 0;
            position: relative;
        }
        .nav-links a:after {
            content: '';
            position: absolute;
            width: 0;
            height: 3px;
            background: var(--accent);
            bottom: 0;
            left: 0;
            transition: width 0.3s;
        }
        .nav-links a:hover:after {
            width: 100%;
        }
        .breadcrumb {
            padding: var(--spacing-sm) 0;
            font-size: 0.9rem;
            color: var(--gray);
        }
        .breadcrumb a {
            color: var(--gray);
        }
        main {
            padding: var(--spacing-md) 0;
        }
        article {
            background: white;
            border-radius: var(--border-radius);
            padding: var(--spacing-lg);
            box-shadow: var(--shadow);
            margin-bottom: var(--spacing-lg);
        }
        h1 {
            font-size: 2.8rem;
            color: var(--primary);
            margin-bottom: var(--spacing-sm);
            line-height: 1.2;
            border-bottom: 3px solid var(--accent);
            padding-bottom: var(--spacing-sm);
        }
        h2 {
            font-size: 2rem;
            color: var(--secondary);
            margin: var(--spacing-md) 0 var(--spacing-sm);
            padding-top: var(--spacing-sm);
        }
        h3 {
            font-size: 1.5rem;
            color: var(--dark);
            margin: var(--spacing-sm) 0 var(--spacing-xs);
        }
        h4 {
            font-size: 1.2rem;
            color: var(--gray);
            margin: var(--spacing-sm) 0 var(--spacing-xs);
        }
        p {
            margin-bottom: 1.2rem;
            text-align: justify;
        }
        .intro {
            font-size: 1.2rem;
            background-color: var(--light);
            padding: var(--spacing-md);
            border-left: 5px solid var(--primary);
            margin-bottom: var(--spacing-md);
            border-radius: 0 var(--border-radius) var(--border-radius) 0;
        }
        .highlight {
            background-color: #FFF9C4;
            padding: var(--spacing-sm);
            border-radius: var(--border-radius);
            border-left: 4px solid var(--accent);
            margin: var(--spacing-md) 0;
        }
        .image-container {
            margin: var(--spacing-md) 0;
            text-align: center;
        }
        .image-container img {
            border-radius: var(--border-radius);
            box-shadow: var(--shadow);
            margin: 0 auto;
        }
        .image-caption {
            font-style: italic;
            color: var(--gray);
            margin-top: var(--spacing-xs);
            font-size: 0.9rem;
        }
        .link-list {
            background: #f9f9f9;
            padding: var(--spacing-md);
            border-radius: var(--border-radius);
            margin: var(--spacing-md) 0;
        }
        .link-list ul {
            columns: 2;
            list-style-position: inside;
        }
        .link-list li {
            margin-bottom: 0.5rem;
            break-inside: avoid;
        }
        .emoji {
            font-size: 1.2em;
            margin-right: 0.3rem;
        }
        .user-feedback {
            margin-top: var(--spacing-lg);
            border-top: 2px dashed #ddd;
            padding-top: var(--spacing-md);
        }
        .rating-form, .comment-form {
            background: #f5f5f5;
            padding: var(--spacing-md);
            border-radius: var(--border-radius);
            margin-bottom: var(--spacing-md);
        }
        .rating-form h3, .comment-form h3 {
            margin-top: 0;
        }
        .star-rating {
            display: flex;
            gap: 0.5rem;
            margin: 1rem 0;
        }
        .star-rating input {
            display: none;
        }
        .star-rating label {
            font-size: 2rem;
            color: #ddd;
            cursor: pointer;
            transition: color 0.2s;
        }
        .star-rating input:checked ~ label,
        .star-rating label:hover,
        .star-rating label:hover ~ label {
            color: var(--accent);
        }
        .form-group {
            margin-bottom: 1rem;
        }
        .form-group label {
            display: block;
            margin-bottom: 0.5rem;
            font-weight: 600;
        }
        .form-group input,
        .form-group textarea,
        .form-group select {
            width: 100%;
            padding: 0.8rem;
            border: 1px solid #ccc;
            border-radius: var(--border-radius);
            font-size: 1rem;
        }
        .form-group textarea {
            min-height: 150px;
            resize: vertical;
        }
        .btn {
            background-color: var(--primary);
            color: white;
            border: none;
            padding: 0.8rem 1.8rem;
            border-radius: var(--border-radius);
            cursor: pointer;
            font-weight: 600;
            transition: background-color 0.3s;
        }
        .btn:hover {
            background-color: var(--secondary);
            text-decoration: none;
        }
        footer {
            background-color: var(--dark);
            color: white;
            padding: var(--spacing-lg) 0 var(--spacing-md);
        }
        .footer-content {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: var(--spacing-md);
            margin-bottom: var(--spacing-md);
        }
        .footer-section h4 {
            color: var(--accent);
            margin-bottom: var(--spacing-sm);
        }
        .footer-links {
            list-style: none;
        }
        .footer-links li {
            margin-bottom: 0.5rem;
        }
        .footer-links a {
            color: #ccc;
        }
        .footer-links a:hover {
            color: white;
        }
        friend-link {
            display: inline-block;
            background: #333;
            padding: 0.5rem 1rem;
            border-radius: 20px;
            margin-right: 0.5rem;
            margin-bottom: 0.5rem;
        }
        friend-link a {
            color: var(--accent);
        }
        .copyright {
            text-align: center;
            padding-top: var(--spacing-md);
            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; }
            .nav-links { gap: var(--spacing-sm); }
        }
        @media (max-width: 768px) {
            .header-top {
                flex-wrap: wrap;
            }
            .search-form {
                order: 3;
                width: 100%;
                margin: var(--spacing-sm) 0 0;
            }
            .mobile-toggle {
                display: block;
            }
            .nav-links {
                flex-direction: column;
                display: none;
                width: 100%;
                text-align: center;
                padding: var(--spacing-sm) 0;
            }
            .nav-links.active {
                display: flex;
            }
            .link-list ul {
                columns: 1;
            }
            article {
                padding: var(--spacing-md);
            }
        }
        .text-center { text-align: center; }
        .mb-1 { margin-bottom: var(--spacing-xs); }
        .mb-2 { margin-bottom: var(--spacing-sm); }
        .mb-3 { margin-bottom: var(--spacing-md); }
        .mt-3 { margin-top: var(--spacing-md); }
        .bold { font-weight: 700; }
        .updated {
            font-size: 0.9rem;
            color: var(--gray);
            margin-bottom: var(--spacing-md);
            display: block;
        }