* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
        }
        body {
            background-color: #f8f9fa;
            color: #333;
            line-height: 1.6;
            overflow-x: hidden;
        }
        a {
            text-decoration: none;
            color: #007bff;
            transition: color 0.3s ease;
        }
        a:hover {
            color: #0056b3;
            text-decoration: underline;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        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: 1.8rem;
            font-weight: 700;
            color: #ffd600;
            text-shadow: 2px 2px 4px rgba(0,0,0,0.5);
        }
        .my-logo a {
            color: inherit;
        }
        .my-logo:hover {
            transform: scale(1.05);
            transition: transform 0.3s ease;
        }
        nav {
            display: flex;
            align-items: center;
        }
        .nav-links {
            display: flex;
            list-style: none;
            gap: 2rem;
        }
        .nav-links a {
            color: white;
            font-weight: 500;
            padding: 0.5rem 1rem;
            border-radius: 4px;
        }
        .nav-links a:hover {
            background-color: rgba(255,255,255,0.2);
            text-decoration: none;
        }
        .hamburger {
            display: none;
            font-size: 1.5rem;
            background: none;
            border: none;
            color: white;
            cursor: pointer;
        }
        .breadcrumb {
            padding: 1rem 0;
            background-color: #e9ecef;
            font-size: 0.9rem;
        }
        .breadcrumb ol {
            display: flex;
            list-style: none;
            gap: 0.5rem;
        }
        .breadcrumb li:not(:last-child)::after {
            content: '>';
            margin-left: 0.5rem;
            color: #6c757d;
        }
        main {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 2rem;
            padding: 2rem 0;
        }
        @media (max-width: 992px) {
            main {
                grid-template-columns: 1fr;
            }
        }
        .content {
            background: white;
            padding: 2rem;
            border-radius: 10px;
            box-shadow: 0 5px 15px rgba(0,0,0,0.05);
        }
        .sidebar {
            background: white;
            padding: 1.5rem;
            border-radius: 10px;
            box-shadow: 0 5px 15px rgba(0,0,0,0.05);
        }
        h1 {
            font-size: 2.5rem;
            color: #1a237e;
            margin-bottom: 1rem;
            line-height: 1.2;
            border-bottom: 3px solid #ffd600;
            padding-bottom: 0.5rem;
        }
        h2 {
            font-size: 2rem;
            color: #283593;
            margin: 2rem 0 1rem;
            padding-left: 0.5rem;
            border-left: 4px solid #007bff;
        }
        h3 {
            font-size: 1.5rem;
            color: #3949ab;
            margin: 1.5rem 0 0.75rem;
        }
        h4 {
            font-size: 1.2rem;
            color: #5c6bc0;
            margin: 1rem 0 0.5rem;
        }
        p {
            margin-bottom: 1.5rem;
            text-align: justify;
        }
        .lead {
            font-size: 1.2rem;
            font-weight: 500;
            color: #555;
            margin-bottom: 2rem;
            background-color: #f1f8ff;
            padding: 1rem;
            border-radius: 8px;
            border-left: 4px solid #007bff;
        }
        strong {
            color: #1a237e;
            font-weight: 700;
        }
        em {
            color: #d81b60;
            font-style: italic;
        }
        .highlight {
            background-color: #fff9c4;
            padding: 0.2rem 0.5rem;
            border-radius: 3px;
        }
        .search-box, .comment-form, .rating-form {
            margin-bottom: 2rem;
            padding: 1.5rem;
            background-color: #f8f9fa;
            border-radius: 8px;
            border: 1px solid #dee2e6;
        }
        .search-box h3, .comment-form h3, .rating-form h3 {
            margin-top: 0;
            color: #333;
        }
        input, textarea, select {
            width: 100%;
            padding: 0.75rem;
            margin-bottom: 1rem;
            border: 1px solid #ced4da;
            border-radius: 4px;
            font-size: 1rem;
            transition: border-color 0.3s;
        }
        input:focus, textarea:focus, select:focus {
            outline: none;
            border-color: #007bff;
            box-shadow: 0 0 0 0.2rem rgba(0,123,255,0.25);
        }
        button {
            background-color: #007bff;
            color: white;
            border: none;
            padding: 0.75rem 1.5rem;
            border-radius: 4px;
            cursor: pointer;
            font-size: 1rem;
            font-weight: 600;
            transition: background-color 0.3s, transform 0.2s;
        }
        button:hover {
            background-color: #0056b3;
            transform: translateY(-2px);
        }
        .featured-image {
            margin: 2rem auto;
            text-align: center;
        }
        .featured-image img {
            border-radius: 10px;
            box-shadow: 0 8px 20px rgba(0,0,0,0.15);
            transition: transform 0.5s ease;
        }
        .featured-image img:hover {
            transform: scale(1.02);
        }
        .image-caption {
            font-style: italic;
            color: #666;
            margin-top: 0.5rem;
            font-size: 0.9rem;
        }
        footer {
            background-color: #1a237e;
            color: white;
            padding: 2rem 0;
            margin-top: 3rem;
        }
        .footer-container {
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            gap: 2rem;
        }
        .footer-section {
            flex: 1;
            min-width: 250px;
        }
        .footer-section h3 {
            color: #ffd600;
            margin-bottom: 1rem;
            font-size: 1.3rem;
        }
        friend-link {
            display: block;
            margin-bottom: 0.5rem;
            color: #bbdefb;
        }
        friend-link:hover {
            color: #ffd600;
            text-decoration: underline;
        }
        .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-direction: column;
                align-items: flex-start;
            }
            .nav-links {
                display: none;
                flex-direction: column;
                width: 100%;
                background-color: #283593;
                position: absolute;
                top: 100%;
                left: 0;
                padding: 1rem;
                box-shadow: 0 4px 8px rgba(0,0,0,0.2);
            }
            .nav-links.active {
                display: flex;
            }
            .hamburger {
                display: block;
                position: absolute;
                top: 1rem;
                right: 20px;
            }
            h1 {
                font-size: 2rem;
            }
            h2 {
                font-size: 1.75rem;
            }
            h3 {
                font-size: 1.25rem;
            }
            .content, .sidebar {
                padding: 1.5rem;
            }
        }
        .text-center {
            text-align: center;
        }
        .mt-2 { margin-top: 2rem; }
        .mb-2 { margin-bottom: 2rem; }
        .updated-time {
            font-size: 0.9rem;
            color: #6c757d;
            font-style: italic;
            margin-top: 2rem;
            padding-top: 1rem;
            border-top: 1px dashed #dee2e6;
        }