* { 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: #2c3e50;
            background: linear-gradient(135deg, #f5f7fa 0%, #e4edf5 100%);
            min-height: 100vh;
            display: flex;
            flex-direction: column;
        }
        a { color: #2980b9; text-decoration: none; transition: all 0.3s ease; }
        a:hover { color: #e74c3c; }
        img { max-width: 100%; height: auto; display: block; }
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        h1, h2, h3, h4 { color: #2c3e50; margin-bottom: 1rem; font-weight: 700; line-height: 1.3; }
        h1 { font-size: 2.8rem; margin-top: 1.5rem; border-bottom: 4px solid #3498db; padding-bottom: 0.5rem; }
        h2 { font-size: 2.2rem; color: #2980b9; margin-top: 2.5rem; }
        h3 { font-size: 1.8rem; color: #16a085; margin-top: 2rem; }
        h4 { font-size: 1.4rem; color: #8e44ad; margin-top: 1.5rem; }
        p { margin-bottom: 1.5rem; text-align: justify; }
        strong { color: #c0392b; }
        .lead { font-size: 1.3rem; font-weight: 300; color: #34495e; }
        .last-update { font-style: italic; color: #7f8c8d; margin: 2rem 0; border-top: 1px dashed #bdc3c7; padding-top: 1rem; }
        header { background: linear-gradient(90deg, #1a2980, #26d0ce); color: white; box-shadow: 0 4px 12px rgba(0,0,0,0.1); position: sticky; top: 0; z-index: 1000; }
        .header-top { display: flex; justify-content: space-between; align-items: center; padding: 1rem 0; }
        .my-logo { font-family: 'Impact', 'Arial Black', sans-serif; font-size: 2.5rem; color: #f1c40f; text-shadow: 2px 2px 4px rgba(0,0,0,0.5); letter-spacing: 2px; }
        .my-logo a { color: inherit; }
        .my-logo span { color: #ecf0f1; }
        nav { background-color: rgba(44, 62, 80, 0.95); }
        .nav-desktop { display: flex; justify-content: center; }
        .nav-desktop a { color: white; padding: 1rem 1.5rem; display: block; font-weight: 500; }
        .nav-desktop a:hover { background-color: #3498db; color: #f1c40f; }
        .hamburger { display: none; font-size: 1.8rem; background: none; border: none; color: white; cursor: pointer; padding: 0.5rem; }
        .nav-mobile { display: none; flex-direction: column; background-color: #2c3e50; }
        .nav-mobile.active { display: flex; }
        .nav-mobile a { color: white; padding: 1rem; border-bottom: 1px solid #34495e; }
        .nav-mobile a:hover { background-color: #3498db; }
        .breadcrumb { padding: 1rem 0; background-color: #ecf0f1; font-size: 0.9rem; }
        .breadcrumb a { color: #7f8c8d; }
        .breadcrumb a:hover { color: #2980b9; }
        .breadcrumb span { color: #95a5a6; }
        main { flex: 1; padding: 2rem 0; }
        .content-grid {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 3rem;
        }
        @media (max-width: 992px) {
            .content-grid { grid-template-columns: 1fr; }
        }
        .sidebar { background: white; padding: 2rem; border-radius: 10px; box-shadow: 0 5px 15px rgba(0,0,0,0.05); }
        .widget { margin-bottom: 2.5rem; }
        .widget h3 { font-size: 1.5rem; margin-top: 0; border-left: 5px solid #3498db; padding-left: 10px; }
        .search-form { display: flex; }
        .search-form input { flex: 1; padding: 12px; border: 2px solid #3498db; border-right: none; border-radius: 5px 0 0 5px; font-size: 1rem; }
        .search-form button { background-color: #3498db; color: white; border: none; padding: 0 1.5rem; border-radius: 0 5px 5px 0; cursor: pointer; transition: background 0.3s; }
        .search-form button:hover { background-color: #2980b9; }
        .comment-form textarea, .rating-form select, .comment-form input { width: 100%; padding: 12px; margin-bottom: 1rem; border: 1px solid #bdc3c7; border-radius: 5px; font-family: inherit; }
        .comment-form button, .rating-form button { background-color: #2ecc71; color: white; border: none; padding: 12px 25px; border-radius: 5px; cursor: pointer; font-weight: bold; }
        .comment-form button:hover, .rating-form button:hover { background-color: #27ae60; }
        .star-rating { color: #f1c40f; font-size: 1.5rem; margin: 1rem 0; }
        .article-content { background: white; padding: 2.5rem; border-radius: 10px; box-shadow: 0 5px 20px rgba(0,0,0,0.08); }
        .article-img { float: right; margin: 0 0 1.5rem 1.5rem; border-radius: 10px; overflow: hidden; max-width: 50%; border: 5px solid #ecf0f1; }
        @media (max-width: 768px) {
            .article-img { float: none; max-width: 100%; margin: 0 0 1.5rem 0; }
        }
        .link-list { background-color: #f8f9fa; padding: 1.5rem; border-radius: 8px; margin: 2rem 0; border-left: 5px solid #9b59b6; }
        .link-list ul { list-style-type: none; display: grid; grid-template-columns: repeat(auto-fill, minmax(250px, 1fr)); gap: 10px; }
        .link-list li { padding: 0.5rem 0; }
        .link-list a { display: block; padding: 8px 12px; background-color: white; border-radius: 4px; border: 1px solid #ddd; }
        .link-list a:hover { background-color: #e8f4fc; border-color: #3498db; }
        footer { background: linear-gradient(90deg, #2c3e50, #34495e); color: #ecf0f1; padding: 3rem 0 1.5rem; margin-top: 3rem; }
        .footer-content { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 2rem; }
        .footer-section { flex: 1; min-width: 250px; }
        .footer-section h3 { color: #f1c40f; border-bottom: 2px solid #3498db; padding-bottom: 0.5rem; margin-bottom: 1.5rem; }
        friend-link { display: block; background-color: rgba(255,255,255,0.1); padding: 10px 15px; margin-bottom: 10px; border-radius: 5px; transition: all 0.3s; }
        friend-link:hover { background-color: rgba(52, 152, 219, 0.5); transform: translateX(5px); }
        .copyright { text-align: center; margin-top: 3rem; padding-top: 1.5rem; border-top: 1px solid #4a6572; color: #bdc3c7; font-size: 0.9rem; }
        .btn { display: inline-block; background: #3498db; color: white; padding: 12px 25px; border-radius: 30px; font-weight: bold; border: none; cursor: pointer; transition: all 0.3s; }
        .btn:hover { background: #2980b9; transform: translateY(-3px); box-shadow: 0 5px 15px rgba(0,0,0,0.1); }
        .highlight-box { background: linear-gradient(120deg, #e3f2fd, #f3e5f5); padding: 2rem; border-radius: 10px; margin: 2rem 0; border-left: 8px solid #9b59b6; }
        @media (max-width: 768px) {
            h1 { font-size: 2.2rem; }
            h2 { font-size: 1.8rem; }
            h3 { font-size: 1.5rem; }
            .header-top { flex-direction: column; text-align: center; gap: 1rem; }
            .my-logo { font-size: 2rem; }
            .nav-desktop { display: none; }
            .hamburger { display: block; position: absolute; top: 1rem; right: 20px; }
            .breadcrumb { text-align: center; }
            .article-content { padding: 1.5rem; }
        }