* {
            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: #f5f7fa;
            padding-top: 80px; 
        }
        a {
            text-decoration: none;
            color: #2a7a4c;
            transition: color 0.3s ease;
        }
        a:hover {
            color: #1d5c3a;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        header {
            background-color: #1a472a;
            color: #fff;
            position: fixed;
            top: 0;
            width: 100%;
            z-index: 1000;
            box-shadow: 0 2px 10px rgba(0,0,0,0.1);
        }
        .header-top {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 15px 20px;
        }
        .my-logo {
            font-size: 2rem;
            font-weight: bold;
            color: #4cd964;
            text-transform: uppercase;
            letter-spacing: 1px;
            font-family: 'Arial Black', sans-serif;
        }
        .my-logo:hover {
            color: #2ecc71;
        }
        .hamburger {
            display: none;
            cursor: pointer;
            font-size: 1.5rem;
        }
        nav ul {
            display: flex;
            list-style: none;
        }
        nav ul li {
            margin-left: 25px;
        }
        nav ul li a {
            color: #fff;
            font-weight: 500;
            padding: 8px 12px;
            border-radius: 4px;
            transition: background-color 0.3s;
        }
        nav ul li a:hover {
            background-color: #2a7a4c;
        }
        .breadcrumb {
            background-color: #2a7a4c;
            padding: 10px 20px;
            font-size: 0.9rem;
        }
        .breadcrumb a {
            color: #c8e6c9;
        }
        .breadcrumb a:hover {
            color: #fff;
        }
        .breadcrumb span {
            color: #fff;
            margin: 0 5px;
        }
        main {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 30px;
            padding: 30px 20px;
        }
        .content {
            background-color: #fff;
            padding: 30px;
            border-radius: 10px;
            box-shadow: 0 5px 15px rgba(0,0,0,0.05);
        }
        .sidebar {
            background-color: #fff;
            padding: 20px;
            border-radius: 10px;
            box-shadow: 0 5px 15px rgba(0,0,0,0.05);
            align-self: start;
        }
        h1 {
            color: #1a472a;
            font-size: 2.8rem;
            margin-bottom: 20px;
            line-height: 1.2;
        }
        h2 {
            color: #2a7a4c;
            font-size: 2rem;
            margin: 30px 0 15px;
            padding-bottom: 10px;
            border-bottom: 2px solid #e8f5e9;
        }
        h3 {
            color: #388e3c;
            font-size: 1.6rem;
            margin: 25px 0 10px;
        }
        h4 {
            color: #4caf50;
            font-size: 1.3rem;
            margin: 20px 0 10px;
        }
        p {
            margin-bottom: 20px;
            font-size: 1.1rem;
            text-align: justify;
        }
        .highlight {
            background-color: #e8f5e9;
            padding: 15px;
            border-left: 4px solid #2a7a4c;
            margin: 20px 0;
            font-style: italic;
        }
        .bold {
            font-weight: bold;
            color: #1a472a;
        }
        .emoji {
            font-size: 1.2em;
            margin-right: 5px;
        }
        .article-image {
            margin: 30px auto;
            border-radius: 8px;
            overflow: hidden;
            box-shadow: 0 8px 20px rgba(0,0,0,0.1);
        }
        .article-image img {
            width: 100%;
            height: auto;
        }
        .caption {
            text-align: center;
            font-size: 0.9rem;
            color: #666;
            margin-top: 10px;
        }
        .link-list {
            margin: 20px 0;
            padding: 15px;
            background-color: #f1f8e9;
            border-radius: 8px;
        }
        .link-list ul {
            list-style: none;
            display: flex;
            flex-wrap: wrap;
            gap: 15px;
        }
        .link-list li a {
            display: inline-block;
            padding: 8px 15px;
            background-color: #2a7a4c;
            color: #fff;
            border-radius: 20px;
            transition: all 0.3s;
        }
        .link-list li a:hover {
            background-color: #1d5c3a;
            transform: translateY(-3px);
        }
        .update-time {
            text-align: right;
            font-size: 0.9rem;
            color: #777;
            margin-top: 30px;
            padding-top: 10px;
            border-top: 1px solid #eee;
        }
        .widget {
            margin-bottom: 30px;
        }
        .widget h3 {
            font-size: 1.4rem;
            margin-bottom: 15px;
            color: #1a472a;
        }
        .search-form input {
            width: 100%;
            padding: 12px;
            border: 2px solid #2a7a4c;
            border-radius: 5px;
            font-size: 1rem;
            margin-bottom: 10px;
        }
        .search-form button {
            width: 100%;
            padding: 12px;
            background-color: #2a7a4c;
            color: #fff;
            border: none;
            border-radius: 5px;
            cursor: pointer;
            font-size: 1rem;
            transition: background-color 0.3s;
        }
        .search-form button:hover {
            background-color: #1d5c3a;
        }
        .comment-form textarea,
        .rating-form select,
        .rating-form input {
            width: 100%;
            padding: 12px;
            margin-bottom: 15px;
            border: 1px solid #ccc;
            border-radius: 5px;
            font-size: 1rem;
        }
        .comment-form button,
        .rating-form button {
            padding: 12px 20px;
            background-color: #388e3c;
            color: #fff;
            border: none;
            border-radius: 5px;
            cursor: pointer;
            transition: background-color 0.3s;
        }
        .comment-form button:hover,
        .rating-form button:hover {
            background-color: #2a7a4c;
        }
        .stars {
            display: flex;
            justify-content: center;
            gap: 5px;
            margin-bottom: 15px;
        }
        .stars i {
            color: #ffc107;
            font-size: 1.5rem;
            cursor: pointer;
            transition: color 0.3s;
        }
        .stars i:hover {
            color: #ff9800;
        }
        footer {
            background-color: #1a472a;
            color: #fff;
            padding: 40px 20px;
            margin-top: 50px;
        }
        .footer-content {
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            gap: 30px;
        }
        .footer-section {
            flex: 1;
            min-width: 250px;
        }
        .footer-section h3 {
            color: #4cd964;
            margin-bottom: 20px;
            font-size: 1.5rem;
        }
        friend-link {
            display: block;
            margin-bottom: 10px;
        }
        friend-link a {
            color: #c8e6c9;
            padding: 5px 0;
            display: inline-block;
            transition: color 0.3s;
        }
        friend-link a:hover {
            color: #fff;
            text-decoration: underline;
        }
        .copyright {
            text-align: center;
            margin-top: 30px;
            padding-top: 20px;
            border-top: 1px solid #2a7a4c;
            font-size: 0.9rem;
            color: #aaa;
        }
        @media (max-width: 992px) {
            main {
                grid-template-columns: 1fr;
            }
            .sidebar {
                order: -1;
            }
        }
        @media (max-width: 768px) {
            .hamburger {
                display: block;
            }
            nav ul {
                display: none;
                flex-direction: column;
                position: absolute;
                top: 100%;
                left: 0;
                width: 100%;
                background-color: #1a472a;
                padding: 20px;
                box-shadow: 0 5px 10px rgba(0,0,0,0.1);
            }
            nav ul.active {
                display: flex;
            }
            nav ul li {
                margin: 10px 0;
            }
            .header-top {
                flex-wrap: wrap;
            }
            h1 {
                font-size: 2.2rem;
            }
            h2 {
                font-size: 1.8rem;
            }
        }
        @media print {
            header, footer, .sidebar {
                display: none;
            }
            body {
                padding-top: 0;
                background-color: #fff;
            }
            .content {
                box-shadow: none;
                padding: 0;
            }
        }