* { margin: 0; padding: 0; box-sizing: border-box; }
        html { scroll-behavior: smooth; }
        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            line-height: 1.6;
            color: #333;
            background-color: #f8f9fa;
            overflow-x: hidden;
        }
        img { max-width: 100%; height: auto; display: block; }
        a { text-decoration: none; color: inherit; transition: color 0.3s ease; }
        ul, ol { list-style-position: inside; margin-left: 1rem; }
        h1, h2, h3, h4 { font-family: 'Arial Rounded MT Bold', 'Arial', sans-serif; color: #1a237e; margin-bottom: 1rem; line-height: 1.2; }
        h1 { font-size: 2.8rem; margin-top: 1.5rem; }
        h2 { font-size: 2.2rem; margin-top: 2.5rem; padding-bottom: 0.5rem; border-bottom: 2px solid #e0e0e0; }
        h3 { font-size: 1.8rem; margin-top: 2rem; color: #283593; }
        h4 { font-size: 1.4rem; margin-top: 1.5rem; color: #3949ab; }
        p { margin-bottom: 1.2rem; font-size: 1.1rem; }
        strong { color: #d32f2f; }
        em { font-style: italic; }
        blockquote {
            border-left: 4px solid #5c6bc0;
            padding-left: 1.5rem;
            margin: 2rem 0;
            font-style: italic;
            color: #555;
            background-color: #f5f5f5;
            padding: 1.5rem;
            border-radius: 0 8px 8px 0;
        }
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        .main-content { display: flex; flex-wrap: wrap; gap: 2rem; margin: 2rem 0; }
        .content-area { flex: 1 1 70%; min-width: 300px; }
        .sidebar { flex: 1 1 25%; min-width: 250px; }
        .site-header {
            background: linear-gradient(135deg, #1a237e 0%, #283593 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 {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .my-logo {
            font-size: 2.5rem;
            font-weight: 900;
            color: #ffeb3b;
            text-shadow: 2px 2px 0 #ff5722;
            letter-spacing: 1px;
        }
        .my-logo:hover { color: #fff; text-shadow: 2px 2px 0 #ff9800; }
        .main-nav ul {
            display: flex;
            gap: 1.5rem;
        }
        .main-nav a {
            color: #fff;
            font-weight: 600;
            padding: 0.5rem 0.8rem;
            border-radius: 4px;
        }
        .main-nav a:hover,
        .main-nav a.active {
            background-color: rgba(255, 255, 255, 0.15);
            color: #ffeb3b;
        }
        .hamburger {
            display: none;
            font-size: 1.8rem;
            background: none;
            border: none;
            color: white;
            cursor: pointer;
        }
        .breadcrumb {
            padding: 1rem 0;
            background-color: #e8eaf6;
            font-size: 0.9rem;
        }
        .breadcrumb ul {
            display: flex;
            flex-wrap: wrap;
            list-style: none;
            margin: 0;
        }
        .breadcrumb li:not(:last-child)::after {
            content: '›';
            margin: 0 10px;
            color: #666;
        }
        .breadcrumb a:hover { color: #1a237e; text-decoration: underline; }
        .search-box {
            background: #fff;
            padding: 1.5rem;
            border-radius: 8px;
            box-shadow: 0 2px 8px rgba(0,0,0,0.05);
            margin-bottom: 2rem;
        }
        .search-box form {
            display: flex;
        }
        .search-box input {
            flex-grow: 1;
            padding: 0.8rem 1rem;
            border: 2px solid #5c6bc0;
            border-radius: 4px 0 0 4px;
            font-size: 1rem;
        }
        .search-box button {
            background: #5c6bc0;
            color: white;
            border: none;
            padding: 0.8rem 1.5rem;
            border-radius: 0 4px 4px 0;
            cursor: pointer;
            font-weight: bold;
            transition: background 0.3s;
        }
        .search-box button:hover { background: #3949ab; }
        .article-meta {
            color: #666;
            font-size: 0.95rem;
            margin-bottom: 1.5rem;
            padding-bottom: 1rem;
            border-bottom: 1px dashed #ccc;
        }
        .article-image {
            margin: 2rem 0;
            text-align: center;
        }
        .article-image img {
            border-radius: 8px;
            box-shadow: 0 6px 15px rgba(0,0,0,0.1);
            border: 1px solid #ddd;
        }
        .article-image figcaption {
            font-style: italic;
            color: #666;
            margin-top: 0.5rem;
        }
        .content-section {
            background: white;
            padding: 2rem;
            border-radius: 10px;
            box-shadow: 0 4px 12px rgba(0,0,0,0.05);
            margin-bottom: 2rem;
        }
        .related-links {
            background: #e3f2fd;
            padding: 1.5rem;
            border-radius: 8px;
            margin: 2rem 0;
        }
        .related-links h3 { color: #1565c0; border-bottom: none; }
        .related-links ul { list-style: none; margin-left: 0; }
        .related-links li { margin-bottom: 0.8rem; }
        .related-links a { color: #1a237e; }
        .related-links a:hover { color: #ff5722; text-decoration: underline; }
        .rating-form,
        .comment-form {
            background: white;
            padding: 2rem;
            border-radius: 10px;
            box-shadow: 0 4px 12px rgba(0,0,0,0.05);
            margin: 2rem 0;
        }
        .form-group { margin-bottom: 1.5rem; }
        label {
            display: block;
            margin-bottom: 0.5rem;
            font-weight: 600;
            color: #333;
        }
        input[type="text"],
        input[type="email"],
        textarea,
        select {
            width: 100%;
            padding: 0.8rem;
            border: 1px solid #ccc;
            border-radius: 4px;
            font-size: 1rem;
            transition: border 0.3s;
        }
        input:focus,
        textarea:focus,
        select:focus {
            outline: none;
            border-color: #5c6bc0;
            box-shadow: 0 0 0 2px rgba(92, 107, 192, 0.2);
        }
        .stars {
            display: flex;
            gap: 0.5rem;
            font-size: 1.8rem;
            color: #ddd;
            cursor: pointer;
        }
        .stars .star:hover,
        .stars .star.active { color: #ffc107; }
        .btn-submit {
            background: linear-gradient(to right, #1a237e, #283593);
            color: white;
            border: none;
            padding: 0.8rem 2rem;
            border-radius: 4px;
            font-size: 1rem;
            font-weight: bold;
            cursor: pointer;
            transition: transform 0.2s, box-shadow 0.2s;
        }
        .btn-submit:hover {
            transform: translateY(-2px);
            box-shadow: 0 4px 8px rgba(0,0,0,0.2);
        }
        .sidebar-widget {
            background: white;
            padding: 1.5rem;
            border-radius: 10px;
            box-shadow: 0 4px 12px rgba(0,0,0,0.05);
            margin-bottom: 2rem;
        }
        .sidebar-widget h3 {
            font-size: 1.5rem;
            color: #1a237e;
            margin-top: 0;
            padding-bottom: 0.5rem;
            border-bottom: 2px solid #e0e0e0;
        }
        .site-footer {
            background: #1a237e;
            color: white;
            padding: 3rem 0 1.5rem;
            margin-top: 3rem;
        }
        .footer-container {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 2rem;
        }
        .footer-widget h4 {
            color: #ffeb3b;
            margin-top: 0;
            font-size: 1.3rem;
        }
        .footer-links ul { list-style: none; margin-left: 0; }
        .footer-links li { margin-bottom: 0.8rem; }
        .footer-links a { color: #bbdefb; }
        .footer-links a:hover { color: #ffeb3b; }
        friend-link {
            display: inline-block;
            background: rgba(255,255,255,0.1);
            padding: 0.5rem 1rem;
            border-radius: 4px;
            margin-right: 0.5rem;
            margin-bottom: 0.5rem;
        }
        friend-link a { color: #bbdefb; }
        friend-link a:hover { color: #ffeb3b; }
        .copyright {
            text-align: center;
            padding-top: 2rem;
            margin-top: 2rem;
            border-top: 1px solid #3949ab;
            font-size: 0.9rem;
            color: #bbdefb;
        }
        @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;
                gap: 0;
            }
            .main-nav a {
                display: block;
                padding: 0.8rem 0;
                border-bottom: 1px solid rgba(255,255,255,0.1);
            }
            h1 { font-size: 2.2rem; }
            h2 { font-size: 1.8rem; }
            h3 { font-size: 1.5rem; }
            .main-content { flex-direction: column; }
            .content-area, .sidebar { flex: 1 1 100%; }
        }
        @media print {
            .site-header, .breadcrumb, .sidebar, .search-box, .rating-form, .comment-form, .site-footer { display: none; }
            body { background: white; color: black; }
            .container { max-width: 100%; padding: 0; }
            .content-section { box-shadow: none; padding: 0; }
        }