* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            line-height: 1.7;
            color: #333;
            background-color: #f8f9fa;
            padding-top: 80px;
        }
        .main-header {
            background: linear-gradient(135deg, #4a00e0, #8e2de2);
            color: white;
            position: fixed;
            top: 0;
            width: 100%;
            z-index: 1000;
            box-shadow: 0 4px 12px rgba(0,0,0,0.1);
            padding: 0 5%;
        }
        .header-container {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 1rem 0;
            max-width: 1400px;
            margin: 0 auto;
        }
        .logo {
            font-size: 1.8rem;
            font-weight: 800;
            text-decoration: none;
            color: white;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .logo i {
            font-size: 2rem;
        }
        .nav-desktop {
            display: flex;
            gap: 2rem;
        }
        @media (max-width: 768px) {
            .nav-desktop {
                display: none;
            }
        }
        .nav-link {
            color: white;
            text-decoration: none;
            font-weight: 600;
            padding: 0.5rem 1rem;
            border-radius: 4px;
            transition: all 0.3s ease;
        }
        .nav-link:hover {
            background-color: rgba(255, 255, 255, 0.15);
            transform: translateY(-2px);
        }
        .hamburger-menu {
            display: none;
            background: none;
            border: none;
            color: white;
            font-size: 1.8rem;
            cursor: pointer;
        }
        @media (max-width: 768px) {
            .hamburger-menu {
                display: block;
            }
        }
        .nav-mobile {
            display: none;
            flex-direction: column;
            background-color: #5c2dd1;
            padding: 1rem;
            position: absolute;
            top: 100%;
            left: 0;
            width: 100%;
            box-shadow: 0 5px 10px rgba(0,0,0,0.1);
        }
        .nav-mobile.active {
            display: flex;
        }
        .nav-mobile .nav-link {
            padding: 1rem;
            border-bottom: 1px solid rgba(255,255,255,0.1);
        }
        .breadcrumb {
            background-color: #e9ecef;
            padding: 1rem 5%;
            font-size: 0.9rem;
            margin-bottom: 2rem;
        }
        .breadcrumb a {
            color: #4a00e0;
            text-decoration: none;
        }
        .breadcrumb a:hover {
            text-decoration: underline;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 5%;
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 3rem;
        }
        @media (max-width: 992px) {
            .container {
                grid-template-columns: 1fr;
            }
        }
        .article-content {
            background: white;
            border-radius: 12px;
            padding: 2.5rem;
            box-shadow: 0 5px 15px rgba(0,0,0,0.05);
        }
        .article-header {
            margin-bottom: 2.5rem;
            border-bottom: 2px solid #f0f0f0;
            padding-bottom: 1.5rem;
        }
        h1 {
            font-size: 2.5rem;
            color: #2d0066;
            margin-bottom: 1rem;
            line-height: 1.3;
        }
        @media (max-width: 768px) {
            h1 {
                font-size: 2rem;
            }
        }
        .article-meta {
            color: #666;
            font-size: 0.95rem;
            display: flex;
            gap: 1.5rem;
            margin-bottom: 1rem;
        }
        .article-meta i {
            margin-right: 5px;
            color: #8e2de2;
        }
        h2 {
            font-size: 1.8rem;
            color: #4a00e0;
            margin: 2.5rem 0 1.2rem;
            padding-bottom: 0.5rem;
            border-bottom: 1px dashed #ddd;
        }
        h3 {
            font-size: 1.4rem;
            color: #5c2dd1;
            margin: 2rem 0 1rem;
        }
        p {
            margin-bottom: 1.5rem;
            font-size: 1.05rem;
            text-align: justify;
        }
        .highlight {
            background-color: #f0e6ff;
            border-left: 4px solid #8e2de2;
            padding: 1.5rem;
            margin: 2rem 0;
            border-radius: 0 8px 8px 0;
        }
        .solution-box {
            background: linear-gradient(135deg, #f8f4ff, #e9e0ff);
            border: 2px solid #8e2de2;
            border-radius: 10px;
            padding: 2rem;
            margin: 2.5rem 0;
            text-align: center;
        }
        .solution-title {
            font-size: 1.8rem;
            color: #4a00e0;
            margin-bottom: 1rem;
        }
        .solution-steps {
            text-align: left;
            margin: 1.5rem 0;
            padding-left: 1.5rem;
        }
        .solution-steps li {
            margin-bottom: 0.8rem;
            font-size: 1.1rem;
        }
        .article-image {
            width: 100%;
            border-radius: 10px;
            margin: 2rem 0;
            box-shadow: 0 8px 20px rgba(0,0,0,0.1);
            transition: transform 0.3s ease;
        }
        .article-image:hover {
            transform: scale(1.01);
        }
        .image-caption {
            text-align: center;
            font-style: italic;
            color: #666;
            margin-top: 0.5rem;
            font-size: 0.95rem;
        }
        .interactive-section {
            background: white;
            border-radius: 12px;
            padding: 2rem;
            margin: 3rem 0;
            box-shadow: 0 5px 15px rgba(0,0,0,0.05);
        }
        .section-title {
            font-size: 1.5rem;
            color: #4a00e0;
            margin-bottom: 1.5rem;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .search-box {
            display: flex;
            margin-bottom: 2rem;
        }
        .search-input {
            flex-grow: 1;
            padding: 1rem;
            border: 2px solid #8e2de2;
            border-radius: 8px 0 0 8px;
            font-size: 1rem;
            outline: none;
        }
        .search-btn {
            background: linear-gradient(135deg, #4a00e0, #8e2de2);
            color: white;
            border: none;
            padding: 0 1.5rem;
            border-radius: 0 8px 8px 0;
            cursor: pointer;
            font-weight: 600;
            transition: all 0.3s ease;
        }
        .search-btn:hover {
            background: linear-gradient(135deg, #3a00b0, #7a1dc2);
        }
        .rating-system {
            display: flex;
            align-items: center;
            gap: 1rem;
            margin-bottom: 1.5rem;
            flex-wrap: wrap;
        }
        .stars {
            display: flex;
            gap: 5px;
        }
        .star {
            font-size: 1.8rem;
            color: #ddd;
            cursor: pointer;
            transition: color 0.2s;
        }
        .star:hover,
        .star.active {
            color: #ffc107;
        }
        .rating-form {
            display: flex;
            flex-direction: column;
            gap: 1rem;
            margin-top: 1.5rem;
        }
        .form-input {
            padding: 1rem;
            border: 1px solid #ddd;
            border-radius: 8px;
            font-size: 1rem;
            font-family: inherit;
        }
        textarea.form-input {
            min-height: 120px;
            resize: vertical;
        }
        .submit-btn {
            background: linear-gradient(135deg, #4a00e0, #8e2de2);
            color: white;
            border: none;
            padding: 1rem 2rem;
            border-radius: 8px;
            font-size: 1.1rem;
            font-weight: 600;
            cursor: pointer;
            transition: all 0.3s ease;
            align-self: flex-start;
        }
        .submit-btn:hover {
            background: linear-gradient(135deg, #3a00b0, #7a1dc2);
            transform: translateY(-2px);
            box-shadow: 0 5px 15px rgba(74, 0, 224, 0.2);
        }
        .sidebar {
            display: flex;
            flex-direction: column;
            gap: 2rem;
        }
        .sidebar-widget {
            background: white;
            border-radius: 12px;
            padding: 1.8rem;
            box-shadow: 0 5px 15px rgba(0,0,0,0.05);
        }
        .widget-title {
            font-size: 1.3rem;
            color: #4a00e0;
            margin-bottom: 1.2rem;
            padding-bottom: 0.7rem;
            border-bottom: 2px solid #f0e6ff;
        }
        .related-links {
            list-style: none;
        }
        .related-links li {
            margin-bottom: 0.8rem;
            padding-bottom: 0.8rem;
            border-bottom: 1px dashed #eee;
        }
        .related-links a {
            color: #333;
            text-decoration: none;
            display: flex;
            align-items: center;
            gap: 10px;
            transition: all 0.3s ease;
        }
        .related-links a:hover {
            color: #8e2de2;
            transform: translateX(5px);
        }
        .web-links-container {
            background: #2d0066;
            color: white;
            padding: 3rem 5%;
            margin-top: 4rem;
        }
        .web-links-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
            gap: 1.5rem;
            max-width: 1200px;
            margin: 0 auto;
        }
        .web-link {
            background: rgba(255, 255, 255, 0.1);
            padding: 1.2rem;
            border-radius: 8px;
            transition: all 0.3s ease;
        }
        .web-link:hover {
            background: rgba(255, 255, 255, 0.2);
            transform: translateY(-5px);
        }
        .web-link a {
            color: #e0d6ff;
            text-decoration: none;
            font-weight: 500;
            display: block;
        }
        .web-link a:hover {
            color: white;
        }
        .main-footer {
            background: #1a0033;
            color: #bbb;
            padding: 3rem 5%;
            text-align: center;
        }
        .footer-content {
            max-width: 1200px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 2rem;
        }
        .copyright {
            border-top: 1px solid rgba(255,255,255,0.1);
            padding-top: 1.5rem;
            font-size: 0.9rem;
        }
        @media (max-width: 768px) {
            body {
                padding-top: 70px;
            }
            .header-container {
                padding: 0.8rem 0;
            }
            .logo {
                font-size: 1.5rem;
            }
            .container {
                padding: 0 3%;
            }
            .article-content {
                padding: 1.8rem;
            }
            h1 {
                font-size: 1.8rem;
            }
            h2 {
                font-size: 1.5rem;
            }
            h3 {
                font-size: 1.2rem;
            }
            .interactive-section {
                padding: 1.5rem;
            }
        }
        @media (max-width: 480px) {
            .article-meta {
                flex-direction: column;
                gap: 0.5rem;
            }
            .rating-system {
                flex-direction: column;
                align-items: flex-start;
            }
            .web-links-grid {
                grid-template-columns: 1fr;
            }
        }
        @keyframes fadeIn {
            from { opacity: 0; transform: translateY(20px); }
            to { opacity: 1; transform: translateY(0); }
        }
        .article-content, .sidebar-widget, .interactive-section {
            animation: fadeIn 0.6s ease-out;
        }
        @media print {
            .main-header, .breadcrumb, .sidebar, .interactive-section,
            .web-links-container, .main-footer {
                display: none !important;
            }
            body {
                padding-top: 0;
                background: white;
                color: black;
            }
            .article-content {
                box-shadow: none;
                padding: 0;
            }
        }