* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            line-height: 1.6;
            color: #333;
            background-color: #f9f9f9;
            padding: 0;
            margin: 0;
        }
        a {
            color: #2c8c3e;
            text-decoration: none;
            transition: color 0.3s ease;
        }
        a:hover {
            color: #1e5c2a;
            text-decoration: underline;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        header {
            background: linear-gradient(135deg, #2c8c3e, #1e5c2a);
            color: white;
            padding: 1rem 2rem;
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: 0 4px 12px rgba(0,0,0,0.1);
        }
        .header-container {
            display: flex;
            justify-content: space-between;
            align-items: center;
            max-width: 1200px;
            margin: 0 auto;
        }
        .my-logo {
            font-size: 2rem;
            font-weight: bold;
            color: white;
            text-shadow: 2px 2px 4px rgba(0,0,0,0.3);
        }
        .my-logo:hover {
            text-decoration: none;
            color: #ffeb3b;
        }
        nav ul {
            list-style: none;
            display: flex;
            gap: 1.5rem;
        }
        nav ul li a {
            color: white;
            font-weight: 500;
            padding: 0.5rem 1rem;
            border-radius: 5px;
        }
        nav ul li a:hover {
            background-color: rgba(255,255,255,0.2);
            text-decoration: none;
        }
        .hamburger {
            display: none;
            font-size: 1.8rem;
            cursor: pointer;
            color: white;
        }
        #nav-toggle {
            display: none;
        }
        .breadcrumb {
            padding: 1rem 2rem;
            background-color: #e9f5eb;
            font-size: 0.9rem;
            max-width: 1200px;
            margin: 0 auto;
        }
        .breadcrumb a {
            color: #555;
        }
        .breadcrumb a:hover {
            color: #2c8c3e;
        }
        main {
            max-width: 1200px;
            margin: 2rem auto;
            padding: 0 2rem;
            background: white;
            border-radius: 12px;
            box-shadow: 0 6px 20px rgba(0,0,0,0.08);
            overflow: hidden;
        }
        article {
            padding: 2rem;
        }
        h1 {
            font-size: 2.8rem;
            color: #1e5c2a;
            margin-bottom: 1.5rem;
            border-bottom: 4px solid #2c8c3e;
            padding-bottom: 0.5rem;
        }
        h2 {
            font-size: 2rem;
            color: #2c8c3e;
            margin: 2rem 0 1rem;
            padding-left: 0.5rem;
            border-left: 5px solid #ff9800;
        }
        h3 {
            font-size: 1.6rem;
            color: #388e3c;
            margin: 1.5rem 0 0.8rem;
        }
        h4 {
            font-size: 1.3rem;
            color: #4caf50;
            margin: 1.2rem 0 0.6rem;
        }
        p {
            margin-bottom: 1.2rem;
            text-align: justify;
            line-height: 1.8;
        }
        .highlight {
            background-color: #fff9c4;
            padding: 1rem;
            border-left: 4px solid #ff9800;
            margin: 1.5rem 0;
            border-radius: 0 8px 8px 0;
        }
        .emoji {
            font-size: 1.2em;
            margin-right: 5px;
        }
        .article-image {
            float: right;
            margin: 1rem 0 1rem 2rem;
            width: 400px;
            border-radius: 10px;
            box-shadow: 0 4px 12px rgba(0,0,0,0.15);
        }
        .article-image img {
            border-radius: 10px;
        }
        .functional-section {
            background: #f1f8e9;
            padding: 2rem;
            border-radius: 10px;
            margin: 2rem 0;
            border: 1px solid #c8e6c9;
        }
        .functional-section h2 {
            border-left: none;
            padding-left: 0;
            color: #1b5e20;
        }
        form {
            display: grid;
            gap: 1rem;
            max-width: 600px;
        }
        input, textarea, select, button {
            padding: 0.8rem;
            border: 1px solid #ccc;
            border-radius: 6px;
            font-size: 1rem;
            width: 100%;
        }
        button {
            background-color: #2c8c3e;
            color: white;
            border: none;
            cursor: pointer;
            transition: background 0.3s;
        }
        button:hover {
            background-color: #1e5c2a;
        }
        .rating {
            display: flex;
            gap: 0.5rem;
            align-items: center;
        }
        .rating i {
            color: #ffc107;
            cursor: pointer;
            font-size: 1.5rem;
        }
        .rating i:hover {
            color: #ff9800;
        }
        footer {
            background: #1e5c2a;
            color: white;
            padding: 2rem;
            margin-top: 3rem;
        }
        .footer-container {
            max-width: 1200px;
            margin: 0 auto;
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 2rem;
        }
        .footer-section h3 {
            color: #ffeb3b;
            border-bottom: 2px solid #ffeb3b;
            padding-bottom: 0.5rem;
            margin-bottom: 1rem;
        }
        friend-link {
            display: block;
            margin: 0.5rem 0;
            padding: 0.5rem;
            background: rgba(255,255,255,0.1);
            border-radius: 5px;
            transition: background 0.3s;
        }
        friend-link a {
            color: #c8e6c9;
        }
        friend-link:hover {
            background: rgba(255,255,255,0.2);
        }
        .copyright {
            text-align: center;
            padding: 1rem;
            border-top: 1px solid #388e3c;
            margin-top: 2rem;
            font-size: 0.9rem;
            color: #b2dfdb;
        }
        @media (max-width: 768px) {
            .header-container {
                flex-wrap: wrap;
            }
            .hamburger {
                display: block;
            }
            nav ul {
                display: none;
                flex-direction: column;
                width: 100%;
                background: #1e5c2a;
                position: absolute;
                top: 100%;
                left: 0;
                padding: 1rem;
                box-shadow: 0 4px 8px rgba(0,0,0,0.2);
            }
            #nav-toggle:checked ~ nav ul {
                display: flex;
            }
            nav ul li {
                margin: 0.5rem 0;
            }
            h1 {
                font-size: 2.2rem;
            }
            h2 {
                font-size: 1.7rem;
            }
            .article-image {
                float: none;
                margin: 1rem auto;
                width: 100%;
                max-width: 400px;
            }
            .functional-section {
                padding: 1.5rem;
            }
            .footer-container {
                grid-template-columns: 1fr;
            }
        }
        @media print {
            header, footer, .functional-section, .breadcrumb {
                display: none;
            }
            main {
                box-shadow: none;
                margin: 0;
                padding: 0;
            }
        }