* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
        }
        body {
            background-color: #f5f7fa;
            color: #333;
            line-height: 1.6;
            overflow-x: hidden;
        }
        a {
            color: #2a6ebb;
            text-decoration: none;
            transition: color 0.3s ease;
        }
        a:hover {
            color: #1d4f8b;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        .container {
            width: 90%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 15px;
        }
        .header-top {
            background-color: #1a3c6e;
            color: white;
            padding: 10px 0;
        }
        .header-top .container {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .my-logo {
            font-size: 2rem;
            font-weight: bold;
            color: #ffcc00;
            text-transform: uppercase;
            letter-spacing: 2px;
        }
        .my-logo:hover {
            color: #ffdd44;
        }
        .search-box {
            display: flex;
            align-items: center;
        }
        .search-box input[type="search"] {
            padding: 8px 12px;
            border: none;
            border-radius: 4px 0 0 4px;
            width: 200px;
        }
        .search-box button {
            background-color: #ffcc00;
            border: none;
            padding: 8px 15px;
            border-radius: 0 4px 4px 0;
            cursor: pointer;
            color: #1a3c6e;
            font-weight: bold;
        }
        .search-box button:hover {
            background-color: #ffdd44;
        }
        .main-nav {
            background-color: #2a4d8c;
            position: relative;
        }
        .nav-container {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .nav-links {
            display: flex;
            list-style: none;
        }
        .nav-links li {
            position: relative;
        }
        .nav-links a {
            color: white;
            padding: 15px 20px;
            display: block;
            font-weight: 500;
        }
        .nav-links a:hover {
            background-color: #3a5d9c;
        }
        .hamburger {
            display: none;
            font-size: 1.5rem;
            color: white;
            background: none;
            border: none;
            cursor: pointer;
        }
        .breadcrumb {
            background-color: #e9edf5;
            padding: 10px 0;
            font-size: 0.9rem;
        }
        .breadcrumb a {
            color: #2a6ebb;
        }
        .breadcrumb span {
            color: #666;
        }
        .main-content {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 30px;
            margin: 30px 0;
        }
        @media (max-width: 768px) {
            .main-content {
                grid-template-columns: 1fr;
            }
        }
        .article-section {
            background-color: white;
            padding: 30px;
            border-radius: 10px;
            box-shadow: 0 5px 15px rgba(0,0,0,0.05);
        }
        .sidebar {
            background-color: white;
            padding: 20px;
            border-radius: 10px;
            box-shadow: 0 5px 15px rgba(0,0,0,0.05);
        }
        h1 {
            font-size: 2.8rem;
            color: #1a3c6e;
            margin-bottom: 20px;
            line-height: 1.2;
        }
        h2 {
            font-size: 2rem;
            color: #2a4d8c;
            margin: 25px 0 15px;
            padding-bottom: 10px;
            border-bottom: 2px solid #ffcc00;
        }
        h3 {
            font-size: 1.6rem;
            color: #3a5d9c;
            margin: 20px 0 10px;
        }
        h4 {
            font-size: 1.3rem;
            color: #4a6dac;
            margin: 15px 0 8px;
        }
        p {
            margin-bottom: 18px;
            text-align: justify;
        }
        .highlight {
            background-color: #fff9e6;
            padding: 15px;
            border-left: 4px solid #ffcc00;
            margin: 20px 0;
            font-weight: bold;
        }
        .emoji {
            font-size: 1.2rem;
            margin-right: 5px;
        }
        .article-image {
            margin: 25px auto;
            border-radius: 8px;
            overflow: hidden;
            max-width: 800px;
        }
        .article-image figcaption {
            text-align: center;
            font-style: italic;
            color: #666;
            margin-top: 10px;
        }
        .form-section {
            background-color: #f0f4fa;
            padding: 25px;
            border-radius: 8px;
            margin: 30px 0;
        }
        .form-group {
            margin-bottom: 20px;
        }
        .form-group label {
            display: block;
            margin-bottom: 8px;
            font-weight: bold;
            color: #2a4d8c;
        }
        .form-group input,
        .form-group textarea,
        .form-group select {
            width: 100%;
            padding: 12px;
            border: 1px solid #ccc;
            border-radius: 4px;
            font-size: 1rem;
        }
        .form-group textarea {
            min-height: 150px;
            resize: vertical;
        }
        .rating-stars {
            display: flex;
            gap: 10px;
            font-size: 1.5rem;
            color: #ffcc00;
            cursor: pointer;
        }
        .rating-stars i:hover {
            color: #ffaa00;
        }
        .btn {
            background-color: #2a6ebb;
            color: white;
            padding: 12px 25px;
            border: none;
            border-radius: 4px;
            cursor: pointer;
            font-size: 1rem;
            font-weight: bold;
            transition: background-color 0.3s ease;
        }
        .btn:hover {
            background-color: #1d4f8b;
        }
        footer {
            background-color: #1a3c6e;
            color: white;
            padding: 40px 0 20px;
            margin-top: 50px;
        }
        .footer-content {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 30px;
            margin-bottom: 30px;
        }
        .footer-section h3 {
            color: #ffcc00;
            border-bottom: none;
            padding-bottom: 0;
        }
        .footer-links {
            list-style: none;
        }
        .footer-links li {
            margin-bottom: 10px;
        }
        .footer-links a {
            color: #ddd;
        }
        .footer-links a:hover {
            color: #ffcc00;
        }
        friend-link {
            display: block;
            background-color: #2a4d8c;
            padding: 15px;
            border-radius: 6px;
            margin: 15px 0;
        }
        friend-link a {
            color: #ffcc00;
            font-weight: bold;
        }
        .copyright {
            text-align: center;
            padding-top: 20px;
            border-top: 1px solid #2a4d8c;
            font-size: 0.9rem;
            color: #aaa;
        }
        @media (max-width: 992px) {
            h1 { font-size: 2.4rem; }
            h2 { font-size: 1.8rem; }
            .nav-links a { padding: 12px 15px; }
        }
        @media (max-width: 768px) {
            .hamburger {
                display: block;
            }
            .nav-links {
                position: absolute;
                top: 100%;
                left: 0;
                right: 0;
                background-color: #2a4d8c;
                flex-direction: column;
                display: none;
                z-index: 1000;
            }
            .nav-links.active {
                display: flex;
            }
            .nav-links li {
                width: 100%;
            }
            .nav-links a {
                padding: 15px;
                border-bottom: 1px solid #3a5d9c;
            }
            .search-box input[type="search"] {
                width: 150px;
            }
        }
        @media (max-width: 576px) {
            .container { width: 95%; }
            .article-section, .sidebar { padding: 20px; }
            h1 { font-size: 2rem; }
            h2 { font-size: 1.6rem; }
        }