* { 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: #333;
            background-color: #f9f9f9;
            background-image: linear-gradient(to bottom, #fff 0%, #f0f8ff 100%);
            max-width: 100%;
            overflow-x: hidden;
        }
        img { max-width: 100%; height: auto; display: block; }
        h1, h2, h3, h4 { font-family: 'Georgia', serif; color: #1a5276; margin-bottom: 1rem; line-height: 1.3; }
        h1 { font-size: 2.8rem; text-align: center; color: #0d4a6b; margin-top: 1.5rem; border-bottom: 3px solid #e74c3c; padding-bottom: 1rem; }
        h2 { font-size: 2.2rem; margin-top: 2.5rem; padding-left: 0.5rem; border-left: 5px solid #2ecc71; }
        h3 { font-size: 1.8rem; margin-top: 2rem; color: #2874a6; }
        h4 { font-size: 1.4rem; margin-top: 1.5rem; color: #5499c7; }
        p { margin-bottom: 1.2rem; font-size: 1.1rem; text-align: justify; }
        a { color: #2980b9; text-decoration: none; transition: color 0.3s; }
        a:hover { color: #e74c3c; text-decoration: underline; }
        strong { color: #2c3e50; }
        em { font-style: italic; color: #7d3c98; }
        .container {
            width: 90%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 15px;
        }
        header {
            background: linear-gradient(135deg, #1a5276 0%, #2c3e50 100%);
            color: white;
            padding: 1rem 0;
            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;
        }
        .my-logo {
            font-size: 2.2rem;
            font-weight: 800;
            color: #fff;
            text-decoration: none;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .my-logo i { color: #2ecc71; }
        .desktop-nav ul {
            display: flex;
            list-style: none;
            gap: 2rem;
        }
        .desktop-nav a {
            color: #ecf0f1;
            font-weight: 600;
            padding: 0.5rem 1rem;
            border-radius: 4px;
            transition: background 0.3s;
        }
        .desktop-nav a:hover {
            background: rgba(255,255,255,0.15);
            text-decoration: none;
        }
        .hamburger {
            display: none;
            font-size: 1.8rem;
            background: none;
            border: none;
            color: white;
            cursor: pointer;
        }
        .mobile-nav {
            display: none;
            flex-direction: column;
            background: #2c3e50;
            position: absolute;
            top: 100%;
            left: 0;
            width: 100%;
            padding: 1rem;
            box-shadow: 0 5px 10px rgba(0,0,0,0.2);
        }
        .mobile-nav.active { display: flex; }
        .mobile-nav a {
            color: white;
            padding: 0.8rem;
            border-bottom: 1px solid #34495e;
        }
        .breadcrumb {
            padding: 1rem 0;
            background: #ecf0f1;
            font-size: 0.9rem;
        }
        .breadcrumb a { color: #7f8c8d; }
        .breadcrumb a:hover { color: #e74c3c; }
        main {
            background: white;
            padding: 2rem;
            border-radius: 10px;
            box-shadow: 0 5px 15px rgba(0,0,0,0.05);
            margin: 2rem auto;
        }
        article section { margin-bottom: 3rem; }
        .highlight-box {
            background: linear-gradient(to right, #e8f4f8, #d1ecf1);
            border-left: 5px solid #3498db;
            padding: 1.5rem;
            margin: 2rem 0;
            border-radius: 0 8px 8px 0;
        }
        .emoji { font-size: 1.2em; margin-right: 5px; }
        .divider {
            height: 2px;
            background: linear-gradient(to right, transparent, #3498db, transparent);
            margin: 2.5rem 0;
        }
        .search-module {
            background: #f8f9fa;
            padding: 2rem;
            border-radius: 10px;
            text-align: center;
            margin: 3rem 0;
            border: 1px dashed #bdc3c7;
        }
        .search-form {
            display: flex;
            max-width: 600px;
            margin: 1rem auto;
        }
        .search-form input {
            flex-grow: 1;
            padding: 0.8rem 1rem;
            border: 2px solid #3498db;
            border-radius: 50px 0 0 50px;
            font-size: 1rem;
        }
        .search-form button {
            background: linear-gradient(to right, #3498db, #2980b9);
            color: white;
            border: none;
            padding: 0.8rem 2rem;
            border-radius: 0 50px 50px 0;
            cursor: pointer;
            font-weight: bold;
            transition: background 0.3s;
        }
        .search-form button:hover { background: linear-gradient(to right, #2980b9, #1c5a7a); }
        .user-feedback {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 2rem;
            margin: 3rem 0;
        }
        .comment-box, .rating-box {
            background: #f8f9fa;
            padding: 1.5rem;
            border-radius: 10px;
            border: 1px solid #ddd;
        }
        .comment-box h3, .rating-box h3 { border-left: none; padding-left: 0; }
        textarea, select, input[type="text"], input[type="email"] {
            width: 100%;
            padding: 0.8rem;
            margin-bottom: 1rem;
            border: 1px solid #bdc3c7;
            border-radius: 5px;
            font-family: inherit;
        }
        button.submit-btn {
            background: #2ecc71;
            color: white;
            border: none;
            padding: 0.8rem 1.5rem;
            border-radius: 5px;
            cursor: pointer;
            font-weight: bold;
            transition: background 0.3s;
        }
        button.submit-btn:hover { background: #27ae60; }
        .stars { color: #f39c12; font-size: 1.5rem; margin: 1rem 0; cursor: pointer; }
        .stars span:hover { color: #e67e22; }
        .article-img {
            margin: 2rem auto;
            border-radius: 10px;
            overflow: hidden;
            box-shadow: 0 8px 16px rgba(0,0,0,0.1);
            max-width: 800px;
        }
        .img-caption {
            text-align: center;
            font-style: italic;
            color: #7f8c8d;
            padding: 0.5rem;
            background: #f1f8ff;
        }
        .related-links {
            background: #e8f6f3;
            padding: 1.5rem;
            border-radius: 10px;
            margin: 2.5rem 0;
        }
        .related-links ul { list-style: none; padding-left: 1rem; }
        .related-links li { margin-bottom: 0.8rem; }
        .related-links li:before { content: "🎯"; margin-right: 10px; }
        footer {
            background: #2c3e50;
            color: #ecf0f1;
            padding: 3rem 0 1.5rem;
            margin-top: 3rem;
        }
        .footer-container {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 2rem;
            margin-bottom: 2rem;
        }
        .footer-section h4 { color: #2ecc71; border-left: none; padding-left: 0; }
        friend-link {
            display: block;
            margin-bottom: 0.5rem;
        }
        friend-link a { color: #bdc3c7; }
        .copyright {
            text-align: center;
            padding-top: 1.5rem;
            border-top: 1px solid #34495e;
            font-size: 0.9rem;
            color: #95a5a6;
        }
        .last-updated {
            text-align: right;
            font-size: 0.9rem;
            color: #7f8c8d;
            margin-top: 2rem;
            padding-top: 1rem;
            border-top: 1px dotted #bdc3c7;
        }
        @media (max-width: 992px) {
            h1 { font-size: 2.4rem; }
            h2 { font-size: 2rem; }
            h3 { font-size: 1.6rem; }
        }
        @media (max-width: 768px) {
            .header-container { flex-wrap: wrap; }
            .desktop-nav { display: none; }
            .hamburger { display: block; }
            h1 { font-size: 2rem; }
            h2 { font-size: 1.8rem; }
            .search-form { flex-direction: column; }
            .search-form input, .search-form button { border-radius: 50px; margin-bottom: 0.5rem; }
            .user-feedback { grid-template-columns: 1fr; }
        }
        @media (max-width: 480px) {
            .container { width: 95%; }
            main { padding: 1rem; }
            h1 { font-size: 1.8rem; }
        }