* { 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: linear-gradient(135deg, #f5f7fa 0%, #e4edf5 100%);
            min-height: 100vh;
            padding-bottom: 40px;
        }
        img { max-width: 100%; height: auto; display: block; }
        .site-header {
            background: linear-gradient(90deg, #1a237e 0%, #283593 50%, #3949ab 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 20px;
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .my-logo {
            font-family: 'Impact', 'Arial Black', sans-serif;
            font-size: 2.2rem;
            letter-spacing: 1px;
            color: #FFD700;
            text-decoration: none;
            text-shadow: 2px 2px 4px rgba(0,0,0,0.5);
            transition: all 0.3s ease;
        }
        .my-logo:hover {
            color: #ffffff;
            transform: scale(1.05);
        }
        .main-nav ul {
            display: flex;
            list-style: none;
            gap: 2rem;
        }
        .main-nav a {
            color: #e3f2fd;
            text-decoration: none;
            font-weight: 600;
            font-size: 1.1rem;
            padding: 0.5rem 1rem;
            border-radius: 4px;
            transition: all 0.3s ease;
        }
        .main-nav a:hover,
        .main-nav a:focus {
            background-color: rgba(255, 255, 255, 0.2);
            color: #FFD700;
        }
        .hamburger {
            display: none;
            background: none;
            border: none;
            color: white;
            font-size: 1.8rem;
            cursor: pointer;
            padding: 0.5rem;
        }
        .breadcrumb {
            max-width: 1200px;
            margin: 1.5rem auto 1rem;
            padding: 0 20px;
            font-size: 0.95rem;
            color: #5a5a5a;
        }
        .breadcrumb a {
            color: #3949ab;
            text-decoration: none;
        }
        .breadcrumb a:hover { text-decoration: underline; }
        .main-container {
            max-width: 1200px;
            margin: 2rem auto;
            padding: 0 20px;
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 3rem;
        }
        @media (max-width: 992px) {
            .main-container { grid-template-columns: 1fr; }
        }
        .article-content {
            background: white;
            padding: 2.5rem;
            border-radius: 12px;
            box-shadow: 0 6px 20px rgba(0, 0, 0, 0.08);
        }
        .article-content h1 {
            color: #1a237e;
            font-size: 2.8rem;
            margin-bottom: 1.5rem;
            line-height: 1.2;
            border-bottom: 3px solid #FFD700;
            padding-bottom: 1rem;
        }
        .article-content h2 {
            color: #283593;
            font-size: 2rem;
            margin: 2.5rem 0 1.2rem;
            padding-top: 1rem;
        }
        .article-content h3 {
            color: #3949ab;
            font-size: 1.6rem;
            margin: 2rem 0 1rem;
        }
        .article-content h4 {
            color: #5c6bc0;
            font-size: 1.3rem;
            margin: 1.5rem 0 0.8rem;
        }
        .article-content p {
            margin-bottom: 1.5rem;
            font-size: 1.1rem;
            text-align: justify;
        }
        .article-content strong {
            color: #1a237e;
            font-weight: 700;
        }
        .article-content em {
            color: #d81b60;
            font-style: italic;
        }
        .highlight-box {
            background: #e8f4fd;
            border-left: 5px solid #2196f3;
            padding: 1.5rem;
            margin: 2rem 0;
            border-radius: 0 8px 8px 0;
        }
        .featured-image {
            width: 100%;
            border-radius: 10px;
            margin: 2.5rem 0;
            box-shadow: 0 8px 16px rgba(0,0,0,0.1);
            border: 1px solid #ddd;
        }
        .sidebar {
            background: white;
            padding: 2rem;
            border-radius: 12px;
            box-shadow: 0 6px 20px rgba(0, 0, 0, 0.08);
            align-self: start;
            position: sticky;
            top: 120px;
        }
        .sidebar h3 {
            color: #1a237e;
            margin-bottom: 1.5rem;
            padding-bottom: 0.5rem;
            border-bottom: 2px solid #FFD700;
        }
        .search-form, .comment-form, .rating-form {
            margin-bottom: 2.5rem;
        }
        .form-group {
            margin-bottom: 1.2rem;
        }
        .form-group label {
            display: block;
            margin-bottom: 0.5rem;
            font-weight: 600;
            color: #444;
        }
        .form-control {
            width: 100%;
            padding: 0.8rem;
            border: 1px solid #ccc;
            border-radius: 6px;
            font-size: 1rem;
            transition: border 0.3s;
        }
        .form-control:focus {
            outline: none;
            border-color: #3949ab;
            box-shadow: 0 0 0 3px rgba(57, 73, 171, 0.2);
        }
        .btn {
            background: linear-gradient(90deg, #1a237e, #3949ab);
            color: white;
            border: none;
            padding: 0.9rem 1.8rem;
            border-radius: 6px;
            font-weight: 700;
            cursor: pointer;
            transition: all 0.3s ease;
            display: inline-block;
            text-align: center;
        }
        .btn:hover {
            background: linear-gradient(90deg, #3949ab, #1a237e);
            transform: translateY(-2px);
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
        }
        .stars {
            display: flex;
            gap: 0.5rem;
            margin: 1rem 0;
            justify-content: center;
        }
        .star {
            font-size: 1.8rem;
            color: #ddd;
            cursor: pointer;
            transition: color 0.2s;
        }
        .star:hover,
        .star.active {
            color: #FFD700;
        }
        .related-links {
            background: #f1f8ff;
            padding: 1.5rem;
            border-radius: 8px;
            margin: 2rem 0;
        }
        .related-links h3 {
            color: #1a237e;
            margin-bottom: 1rem;
        }
        .related-links ul {
            list-style: none;
            column-count: 2;
            column-gap: 2rem;
        }
        @media (max-width: 768px) {
            .related-links ul { column-count: 1; }
        }
        .related-links li {
            margin-bottom: 0.8rem;
            break-inside: avoid;
        }
        .related-links a {
            color: #3949ab;
            text-decoration: none;
            padding: 0.3rem 0;
            display: inline-block;
            border-bottom: 1px dotted transparent;
            transition: all 0.3s;
        }
        .related-links a:hover {
            color: #1a237e;
            border-bottom-color: #1a237e;
            padding-left: 0.5rem;
        }
        .site-footer {
            max-width: 1200px;
            margin: 4rem auto 0;
            padding: 2.5rem 20px 0;
            border-top: 2px solid #ddd;
            color: #555;
        }
        .friend-links {
            display: flex;
            flex-wrap: wrap;
            gap: 1.5rem;
            justify-content: center;
            margin-bottom: 2rem;
        }
        friend-link {
            background: #f0f4ff;
            padding: 0.8rem 1.5rem;
            border-radius: 30px;
        }
        friend-link a {
            color: #3949ab;
            text-decoration: none;
            font-weight: 600;
        }
        friend-link a:hover {
            text-decoration: underline;
        }
        .copyright {
            text-align: center;
            padding: 1.5rem;
            font-size: 0.95rem;
            color: #777;
            border-top: 1px solid #eee;
        }
        @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: 0.5rem;
            }
            .article-content {
                padding: 1.5rem;
            }
            .article-content h1 {
                font-size: 2.2rem;
            }
            .sidebar {
                padding: 1.5rem;
                position: static;
            }
        }
        .last-updated {
            background: #fff8e1;
            padding: 1rem;
            border-radius: 6px;
            margin: 2rem 0;
            text-align: center;
            font-style: italic;
            color: #5d4037;
            border-left: 4px solid #ffb300;
        }