* {
            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: #f9f7f4;
            background-image: linear-gradient(to bottom, #ffffff 0%, #f0eee9 100%);
            min-height: 100vh;
            display: flex;
            flex-direction: column;
        }
        a {
            color: #2a5c8b;
            text-decoration: none;
            transition: color 0.3s ease, background-color 0.3s ease;
        }
        a:hover {
            color: #1d3f5e;
            text-decoration: underline;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        ul, ol {
            padding-left: 1.5em;
        }
        .site-header {
            background: linear-gradient(135deg, #1d3f5e 0%, #2a5c8b 100%);
            color: white;
            padding: 1rem 0;
            box-shadow: 0 4px 12px rgba(0,0,0,0.1);
            position: sticky;
            top: 0;
            z-index: 1000;
        }
        .header-container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 1.5rem;
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .my-logo {
            font-family: 'Georgia', serif;
            font-size: 2.2rem;
            font-weight: bold;
            color: #ffd166;
            text-shadow: 2px 2px 4px rgba(0,0,0,0.3);
        }
        .my-logo a {
            color: inherit;
            text-decoration: none;
        }
        .my-logo:hover {
            transform: scale(1.02);
        }
        .main-nav ul {
            display: flex;
            list-style: none;
        }
        .main-nav li {
            margin-left: 1.8rem;
        }
        .main-nav a {
            color: #e6f2ff;
            font-weight: 600;
            padding: 0.5rem 0.8rem;
            border-radius: 4px;
        }
        .main-nav a:hover {
            background-color: rgba(255,255,255,0.15);
            text-decoration: none;
        }
        .hamburger {
            display: none;
            font-size: 1.8rem;
            background: none;
            border: none;
            color: white;
            cursor: pointer;
            padding: 0.5rem;
        }
        .breadcrumb {
            background-color: #e9ecef;
            padding: 0.8rem 1.5rem;
            font-size: 0.9rem;
            border-bottom: 1px solid #d1d8e0;
        }
        .breadcrumb ol {
            list-style: none;
            display: flex;
            flex-wrap: wrap;
            max-width: 1200px;
            margin: 0 auto;
        }
        .breadcrumb li {
            margin-right: 0.5rem;
        }
        .breadcrumb li:not(:last-child)::after {
            content: "›";
            margin-left: 0.5rem;
            color: #6c757d;
        }
        .breadcrumb a {
            color: #495057;
        }
        .content-container {
            max-width: 1200px;
            margin: 2rem auto;
            padding: 0 1.5rem;
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 2.5rem;
        }
        main {
            background: white;
            padding: 2.5rem;
            border-radius: 12px;
            box-shadow: 0 6px 20px rgba(0,0,0,0.08);
        }
        h1 {
            font-size: 2.8rem;
            color: #1d3f5e;
            margin-bottom: 1.5rem;
            line-height: 1.2;
            border-bottom: 3px solid #ffd166;
            padding-bottom: 0.5rem;
        }
        h2 {
            font-size: 2rem;
            color: #2a5c8b;
            margin: 2.5rem 0 1.2rem;
            padding-top: 1rem;
        }
        h3 {
            font-size: 1.6rem;
            color: #3a7bb8;
            margin: 2rem 0 1rem;
        }
        h4 {
            font-size: 1.3rem;
            color: #5a9bd6;
            margin: 1.5rem 0 0.8rem;
        }
        p {
            margin-bottom: 1.5rem;
            text-align: justify;
            hyphens: auto;
        }
        .lead {
            font-size: 1.3rem;
            color: #555;
            font-weight: 500;
            margin-bottom: 2rem;
            padding: 1rem;
            background: #f0f7ff;
            border-left: 5px solid #2a5c8b;
        }
        .highlight {
            background-color: #fff9db;
            padding: 1.5rem;
            border-radius: 8px;
            border-left: 5px solid #ffd166;
            margin: 2rem 0;
        }
        .quote {
            font-style: italic;
            color: #666;
            border-left: 4px solid #ccc;
            padding-left: 1.5rem;
            margin: 2rem 0;
        }
        .emoji {
            font-size: 1.2em;
            margin-right: 0.3rem;
        }
        strong {
            color: #1d3f5e;
        }
        hr {
            border: none;
            height: 2px;
            background: linear-gradient(to right, transparent, #ffd166, transparent);
            margin: 3rem 0;
        }
        .article-image {
            margin: 2.5rem auto;
            text-align: center;
        }
        .article-image img {
            border-radius: 10px;
            box-shadow: 0 8px 25px rgba(0,0,0,0.15);
            border: 5px solid white;
            max-width: 800px;
            width: 100%;
        }
        .article-image figcaption {
            margin-top: 0.8rem;
            font-style: italic;
            color: #666;
            font-size: 0.95rem;
        }
        aside {
            align-self: start;
            position: sticky;
            top: 120px;
        }
        .sidebar-widget {
            background: white;
            padding: 1.5rem;
            border-radius: 10px;
            box-shadow: 0 5px 15px rgba(0,0,0,0.05);
            margin-bottom: 2rem;
        }
        .sidebar-widget h3 {
            font-size: 1.4rem;
            margin-top: 0;
            color: #1d3f5e;
            border-bottom: 2px solid #ffd166;
            padding-bottom: 0.5rem;
        }
        .search-form {
            display: flex;
        }
        .search-form input[type="search"] {
            flex: 1;
            padding: 0.8rem;
            border: 2px solid #d1d8e0;
            border-radius: 6px 0 0 6px;
            font-size: 1rem;
        }
        .search-form button {
            background: #2a5c8b;
            color: white;
            border: none;
            padding: 0.8rem 1.2rem;
            border-radius: 0 6px 6px 0;
            cursor: pointer;
            transition: background 0.3s;
        }
        .search-form button:hover {
            background: #1d3f5e;
        }
        .user-feedback {
            margin-top: 4rem;
            border-top: 2px solid #e9ecef;
            padding-top: 2.5rem;
        }
        .user-feedback h2 {
            margin-top: 0;
        }
        .rating-form, .comment-form {
            background: #f8f9fa;
            padding: 1.8rem;
            border-radius: 10px;
            margin-bottom: 2rem;
        }
        .form-group {
            margin-bottom: 1.2rem;
        }
        label {
            display: block;
            margin-bottom: 0.5rem;
            font-weight: 600;
            color: #495057;
        }
        input[type="text"],
        input[type="email"],
        textarea,
        select {
            width: 100%;
            padding: 0.8rem;
            border: 1px solid #ced4da;
            border-radius: 6px;
            font-family: inherit;
            font-size: 1rem;
        }
        textarea {
            min-height: 150px;
            resize: vertical;
        }
        .stars {
            display: flex;
            gap: 0.5rem;
            font-size: 1.8rem;
            color: #ddd;
            cursor: pointer;
        }
        .stars .star:hover,
        .stars .star.active {
            color: #ffd166;
        }
        .btn-submit {
            background: linear-gradient(to right, #2a5c8b, #3a7bb8);
            color: white;
            border: none;
            padding: 0.9rem 2rem;
            border-radius: 6px;
            font-size: 1.1rem;
            font-weight: 600;
            cursor: pointer;
            transition: transform 0.2s, box-shadow 0.2s;
        }
        .btn-submit:hover {
            transform: translateY(-2px);
            box-shadow: 0 6px 12px rgba(42, 92, 139, 0.3);
        }
        .site-footer {
            background: #1d3f5e;
            color: #e6f2ff;
            padding: 3rem 0 1.5rem;
            margin-top: auto;
        }
        .footer-container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 1.5rem;
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 2rem;
        }
        .footer-section h3 {
            color: #ffd166;
            margin-bottom: 1.5rem;
            font-size: 1.4rem;
        }
        .footer-links {
            list-style: none;
        }
        .footer-links li {
            margin-bottom: 0.8rem;
        }
        .footer-links a {
            color: #b8d4f5;
        }
        friend-link {
            display: block;
            background: rgba(255,255,255,0.05);
            padding: 1rem;
            border-radius: 6px;
            margin-bottom: 1rem;
        }
        friend-link a {
            color: #ffd166;
            font-weight: 600;
        }
        .copyright {
            text-align: center;
            padding-top: 2rem;
            margin-top: 2rem;
            border-top: 1px solid rgba(255,255,255,0.1);
            font-size: 0.9rem;
            color: #a0c1e8;
        }
        @media (max-width: 992px) {
            .content-container {
                grid-template-columns: 1fr;
            }
            aside {
                order: -1;
                position: static;
                margin-bottom: 2rem;
            }
            h1 {
                font-size: 2.4rem;
            }
            h2 {
                font-size: 1.8rem;
            }
        }
        @media (max-width: 768px) {
            .header-container {
                flex-wrap: wrap;
            }
            .hamburger {
                display: block;
            }
            .main-nav {
                width: 100%;
                max-height: 0;
                overflow: hidden;
                transition: max-height 0.5s ease;
            }
            .main-nav.active {
                max-height: 300px;
                margin-top: 1rem;
            }
            .main-nav ul {
                flex-direction: column;
            }
            .main-nav li {
                margin: 0.5rem 0;
            }
            .main-nav a {
                display: block;
                padding: 0.8rem;
            }
            main {
                padding: 1.5rem;
            }
            .content-container {
                padding: 0 1rem;
            }
        }
        @media (max-width: 480px) {
            h1 {
                font-size: 2rem;
            }
            .lead {
                font-size: 1.1rem;
            }
            .rating-form,
            .comment-form {
                padding: 1.2rem;
            }
        }
        @media print {
            .site-header,
            .breadcrumb,
            .sidebar-widget,
            .user-feedback,
            .site-footer {
                display: none;
            }
            body {
                background: white;
                color: black;
            }
            main {
                box-shadow: none;
                padding: 0;
            }
            a {
                color: black;
                text-decoration: underline;
            }
            h1, h2, h3, h4 {
                color: black;
            }
        }