* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            background: linear-gradient(135deg, #f9f9f9 0%, #f0f7ff 100%);
            color: #333;
            line-height: 1.6;
            min-height: 100vh;
            display: flex;
            flex-direction: column;
        }
        a {
            text-decoration: none;
            color: #2a5c8a;
            transition: all 0.3s ease;
        }
        a:hover {
            color: #d32f2f;
            text-decoration: underline;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        .btn {
            display: inline-block;
            background: #d32f2f;
            color: white;
            padding: 12px 28px;
            border-radius: 30px;
            font-weight: 600;
            border: none;
            cursor: pointer;
            transition: all 0.3s ease;
            text-align: center;
        }
        .btn:hover {
            background: #b71c1c;
            transform: translateY(-3px);
            box-shadow: 0 5px 15px rgba(211, 47, 47, 0.3);
        }
        .section {
            padding: 60px 0;
        }
        .section-title {
            font-size: 2.5rem;
            color: #1a237e;
            margin-bottom: 30px;
            text-align: center;
            position: relative;
        }
        .section-title::after {
            content: '';
            position: absolute;
            width: 80px;
            height: 4px;
            background: #d32f2f;
            bottom: -10px;
            left: 50%;
            transform: translateX(-50%);
            border-radius: 2px;
        }
        .highlight {
            background-color: #fff9c4;
            padding: 2px 5px;
            border-radius: 3px;
        }
        header {
            background: white;
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
            position: sticky;
            top: 0;
            z-index: 1000;
        }
        .header-container {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 15px 20px;
        }
        .my-logo {
            font-size: 2.2rem;
            font-weight: 800;
            color: #d32f2f;
            text-transform: uppercase;
            letter-spacing: 1px;
        }
        .my-logo span {
            color: #1a237e;
        }
        nav {
            display: flex;
            align-items: center;
        }
        .nav-links {
            display: flex;
            list-style: none;
        }
        .nav-links li {
            margin-left: 30px;
        }
        .nav-links a {
            font-weight: 600;
            font-size: 1.05rem;
            color: #444;
        }
        .nav-links a:hover {
            color: #d32f2f;
        }
        .hamburger {
            display: none;
            font-size: 1.8rem;
            cursor: pointer;
            color: #1a237e;
        }
        .breadcrumb {
            padding: 15px 20px;
            background: #f5f5f5;
            border-bottom: 1px solid #e0e0e0;
            font-size: 0.95rem;
        }
        .breadcrumb a {
            color: #666;
        }
        .breadcrumb a:hover {
            color: #d32f2f;
        }
        .breadcrumb span {
            margin: 0 8px;
            color: #999;
        }
        main {
            flex: 1;
        }
        .article-header {
            padding: 40px 20px;
            text-align: center;
            background: linear-gradient(rgba(255,255,255,0.9), rgba(255,255,255,0.9)), url('https://images.unsplash.com/photo-1544717305-99670f9c28f5?ixlib=rb-4.0.3&auto=format&fit=crop&w=1200&q=80');
            background-size: cover;
            margin-bottom: 30px;
        }
        .article-header h1 {
            font-size: 3.2rem;
            color: #1a237e;
            margin-bottom: 20px;
            line-height: 1.2;
        }
        .article-meta {
            display: flex;
            justify-content: center;
            align-items: center;
            flex-wrap: wrap;
            gap: 20px;
            color: #666;
            font-size: 0.95rem;
        }
        .article-meta i {
            margin-right: 5px;
        }
        .content {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 40px;
            padding: 20px;
        }
        .article-body {
            background: white;
            padding: 40px;
            border-radius: 15px;
            box-shadow: 0 8px 30px rgba(0, 0, 0, 0.06);
        }
        .article-body h2 {
            font-size: 2rem;
            color: #1a237e;
            margin: 40px 0 20px;
            padding-bottom: 10px;
            border-bottom: 2px dashed #e0e0e0;
        }
        .article-body h3 {
            font-size: 1.6rem;
            color: #333;
            margin: 30px 0 15px;
        }
        .article-body h4 {
            font-size: 1.3rem;
            color: #555;
            margin: 25px 0 10px;
        }
        .article-body p {
            margin-bottom: 20px;
            font-size: 1.1rem;
            text-align: justify;
        }
        .article-body ul, .article-body ol {
            margin-left: 30px;
            margin-bottom: 20px;
        }
        .article-body li {
            margin-bottom: 10px;
        }
        .feature-image {
            margin: 30px 0;
            text-align: center;
        }
        .feature-image img {
            border-radius: 10px;
            box-shadow: 0 10px 25px rgba(0,0,0,0.1);
            max-width: 800px;
            margin: 0 auto;
        }
        .img-caption {
            font-style: italic;
            color: #666;
            margin-top: 10px;
            font-size: 0.95rem;
        }
        .sidebar {
            background: white;
            padding: 25px;
            border-radius: 15px;
            box-shadow: 0 8px 30px rgba(0, 0, 0, 0.06);
            height: fit-content;
            position: sticky;
            top: 120px;
        }
        .sidebar-widget {
            margin-bottom: 30px;
        }
        .sidebar-widget h3 {
            font-size: 1.4rem;
            color: #1a237e;
            margin-bottom: 20px;
            padding-bottom: 10px;
            border-bottom: 1px solid #e0e0e0;
        }
        .search-form input {
            width: 100%;
            padding: 12px 15px;
            border: 1px solid #ccc;
            border-radius: 30px;
            font-size: 1rem;
        }
        .search-form button {
            width: 100%;
            margin-top: 10px;
        }
        .rating-widget {
            text-align: center;
        }
        .stars {
            font-size: 1.8rem;
            color: #ffc107;
            margin: 15px 0;
        }
        .stars i {
            cursor: pointer;
            margin: 0 2px;
        }
        .comment-form textarea {
            width: 100%;
            padding: 15px;
            border: 1px solid #ccc;
            border-radius: 10px;
            font-size: 1rem;
            margin-bottom: 15px;
            min-height: 120px;
        }
        .comment-form input {
            width: 100%;
            padding: 12px 15px;
            border: 1px solid #ccc;
            border-radius: 10px;
            font-size: 1rem;
            margin-bottom: 15px;
        }
        .related-links {
            list-style: none;
        }
        .related-links li {
            margin-bottom: 12px;
            padding-bottom: 12px;
            border-bottom: 1px dashed #eee;
        }
        .related-links a {
            display: flex;
            align-items: center;
            color: #444;
        }
        .related-links a:hover {
            color: #d32f2f;
        }
        .related-links i {
            margin-right: 10px;
            color: #d32f2f;
        }
        footer {
            background: #1a237e;
            color: white;
            padding: 60px 20px 30px;
            margin-top: 60px;
        }
        .footer-container {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 40px;
        }
        .footer-logo {
            font-size: 2rem;
            font-weight: 800;
            color: white;
            margin-bottom: 20px;
        }
        .footer-links h4 {
            font-size: 1.3rem;
            margin-bottom: 20px;
            color: #ffcc80;
        }
        .footer-links ul {
            list-style: none;
        }
        .footer-links li {
            margin-bottom: 10px;
        }
        .footer-links a {
            color: #ccc;
        }
        .footer-links a:hover {
            color: #ffcc80;
        }
        friend-link {
            display: block;
            background: rgba(255,255,255,0.1);
            padding: 15px;
            border-radius: 8px;
            margin-bottom: 15px;
            text-align: center;
        }
        .copyright {
            text-align: center;
            padding-top: 30px;
            margin-top: 30px;
            border-top: 1px solid rgba(255,255,255,0.1);
            color: #aaa;
            font-size: 0.9rem;
        }
        @media (max-width: 992px) {
            .content {
                grid-template-columns: 1fr;
            }
            .sidebar {
                position: static;
            }
        }
        @media (max-width: 768px) {
            .hamburger {
                display: block;
            }
            .nav-links {
                position: fixed;
                top: 90px;
                left: -100%;
                width: 100%;
                height: calc(100vh - 90px);
                background: white;
                flex-direction: column;
                align-items: center;
                justify-content: flex-start;
                padding-top: 40px;
                transition: left 0.5s ease;
                box-shadow: 0 10px 20px rgba(0,0,0,0.1);
            }
            .nav-links.active {
                left: 0;
            }
            .nav-links li {
                margin: 15px 0;
            }
            .article-header h1 {
                font-size: 2.5rem;
            }
            .section-title {
                font-size: 2rem;
            }
        }
        @media (max-width: 480px) {
            .article-header h1 {
                font-size: 2rem;
            }
            .article-body {
                padding: 25px;
            }
            .article-body h2 {
                font-size: 1.7rem;
            }
            .article-body h3 {
                font-size: 1.4rem;
            }
        }