:root {
            --primary: #4a1c8b;
            --secondary: #ff9900;
            --accent: #00c853;
            --dark: #1a1a2e;
            --light: #f8f9fa;
            --gray: #6c757d;
            --shadow: 0 5px 15px rgba(0,0,0,0.1);
            --transition: all 0.3s ease;
            --border-radius: 12px;
        }
        * {
            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: #fff;
            overflow-x: hidden;
        }
        a {
            text-decoration: none;
            color: inherit;
            transition: var(--transition);
        }
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        .site-header {
            background: linear-gradient(135deg, var(--primary), #6a11cb);
            color: white;
            padding: 1rem 0;
            box-shadow: var(--shadow);
            position: sticky;
            top: 0;
            z-index: 1000;
        }
        .header-content {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .logo {
            font-size: 2.2rem;
            font-weight: 800;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .logo-icon {
            color: var(--secondary);
        }
        .logo span {
            background: linear-gradient(to right, #ff9900, #ffcc00);
            -webkit-background-clip: text;
            background-clip: text;
            color: transparent;
        }
        .main-nav ul {
            display: flex;
            list-style: none;
            gap: 2rem;
        }
        .main-nav a {
            font-weight: 600;
            padding: 0.5rem 1rem;
            border-radius: 50px;
        }
        .main-nav a:hover, .main-nav a.active {
            background: rgba(255,255,255,0.15);
            color: var(--secondary);
        }
        .hamburger {
            display: none;
            font-size: 1.8rem;
            cursor: pointer;
        }
        .breadcrumb {
            background: #f1f3ff;
            padding: 1rem 0;
            margin-bottom: 2rem;
        }
        .breadcrumb ol {
            display: flex;
            list-style: none;
            flex-wrap: wrap;
            gap: 0.5rem;
        }
        .breadcrumb li:not(:last-child)::after {
            content: '>';
            margin-left: 0.5rem;
            color: var(--gray);
        }
        .breadcrumb a:hover {
            color: var(--primary);
            text-decoration: underline;
        }
        .search-bar {
            max-width: 600px;
            margin: 2rem auto 3rem;
            padding: 0 1rem;
        }
        .search-form {
            display: flex;
            box-shadow: var(--shadow);
            border-radius: 50px;
            overflow: hidden;
        }
        .search-input {
            flex: 1;
            padding: 1rem 1.5rem;
            border: none;
            font-size: 1.1rem;
            outline: none;
        }
        .search-btn {
            background: var(--secondary);
            color: white;
            border: none;
            padding: 0 1.8rem;
            cursor: pointer;
            font-size: 1.2rem;
            transition: var(--transition);
        }
        .search-btn:hover {
            background: #e68900;
        }
        .content-wrapper {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 3rem;
            margin: 2rem 0 4rem;
        }
        @media (max-width: 992px) {
            .content-wrapper {
                grid-template-columns: 1fr;
            }
        }
        .main-article {
            background: white;
            border-radius: var(--border-radius);
            overflow: hidden;
            box-shadow: var(--shadow);
            padding: 2.5rem;
        }
        .article-meta {
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 1rem;
            margin-bottom: 2rem;
            color: var(--gray);
            font-size: 0.95rem;
        }
        .author {
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .author-img {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            object-fit: cover;
        }
        h1 {
            font-size: 2.8rem;
            line-height: 1.2;
            color: var(--primary);
            margin-bottom: 1.5rem;
        }
        h2 {
            font-size: 2rem;
            color: var(--dark);
            margin: 2.5rem 0 1.2rem;
            padding-bottom: 0.5rem;
            border-bottom: 3px solid var(--secondary);
        }
        h3 {
            font-size: 1.6rem;
            color: #444;
            margin: 2rem 0 1rem;
        }
        p {
            margin-bottom: 1.5rem;
            font-size: 1.1rem;
            color: #444;
        }
        .lead {
            font-size: 1.3rem;
            font-weight: 500;
            color: var(--primary);
            background: #f0e6ff;
            padding: 1.5rem;
            border-radius: var(--border-radius);
            border-left: 5px solid var(--secondary);
            margin-bottom: 2.5rem;
        }
        .highlight-box {
            background: linear-gradient(to right, #e3f2fd, #f3e5f5);
            border-radius: var(--border-radius);
            padding: 2rem;
            margin: 2.5rem 0;
            border: 2px dashed var(--primary);
        }
        .highlight-box h3 {
            color: var(--primary);
            margin-top: 0;
        }
        .featured-image {
            width: 100%;
            max-height: 500px;
            object-fit: cover;
            border-radius: var(--border-radius);
            margin: 2rem 0;
            box-shadow: 0 10px 30px rgba(0,0,0,0.15);
        }
        .image-caption {
            text-align: center;
            font-style: italic;
            color: var(--gray);
            margin-top: -1.5rem;
            margin-bottom: 2.5rem;
        }
        .steps-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 1.5rem;
            margin: 2.5rem 0;
        }
        .step-card {
            background: white;
            padding: 1.8rem;
            border-radius: var(--border-radius);
            box-shadow: 0 5px 15px rgba(0,0,0,0.05);
            border-top: 5px solid var(--accent);
            transition: var(--transition);
        }
        .step-card:hover {
            transform: translateY(-10px);
            box-shadow: 0 15px 30px rgba(0,0,0,0.1);
        }
        .step-number {
            display: inline-block;
            background: var(--primary);
            color: white;
            width: 40px;
            height: 40px;
            line-height: 40px;
            text-align: center;
            border-radius: 50%;
            font-weight: bold;
            margin-bottom: 1rem;
        }
        ul, ol {
            padding-left: 1.8rem;
            margin-bottom: 1.5rem;
        }
        li {
            margin-bottom: 0.7rem;
        }
        strong {
            color: var(--primary);
            font-weight: 700;
        }
        .download-buttons {
            display: flex;
            flex-wrap: wrap;
            gap: 1.5rem;
            margin: 2.5rem 0;
        }
        .btn {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            padding: 1rem 2rem;
            font-weight: 700;
            border-radius: 50px;
            transition: var(--transition);
        }
        .btn-primary {
            background: linear-gradient(to right, var(--primary), #6a11cb);
            color: white;
        }
        .btn-primary:hover {
            background: linear-gradient(to right, #3a0c6b, #5a0db3);
            transform: scale(1.05);
            box-shadow: 0 10px 20px rgba(74, 28, 139, 0.3);
        }
        .btn-secondary {
            background: var(--secondary);
            color: white;
        }
        .btn-secondary:hover {
            background: #e68900;
            transform: scale(1.05);
        }
        .sidebar {
            background: white;
            border-radius: var(--border-radius);
            padding: 2rem;
            box-shadow: var(--shadow);
        }
        .sidebar-widget {
            margin-bottom: 2.5rem;
        }
        .sidebar h3 {
            font-size: 1.4rem;
            color: var(--primary);
            margin-bottom: 1.2rem;
            padding-bottom: 0.5rem;
            border-bottom: 2px solid #eee;
        }
        .popular-links {
            list-style: none;
            padding-left: 0;
        }
        .popular-links li {
            margin-bottom: 1rem;
            padding-bottom: 1rem;
            border-bottom: 1px dashed #eee;
        }
        .popular-links a {
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .popular-links a:hover {
            color: var(--primary);
        }
        .popular-links i {
            color: var(--secondary);
        }
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 1rem;
        }
        .stat-box {
            text-align: center;
            padding: 1.2rem;
            background: #f8f9ff;
            border-radius: 10px;
        }
        .stat-number {
            font-size: 2rem;
            font-weight: 800;
            color: var(--primary);
            line-height: 1;
        }
        .interaction-section {
            margin: 4rem 0;
        }
        .rating-widget {
            text-align: center;
            background: linear-gradient(to right, #fff8e1, #e8f5e9);
            padding: 2.5rem;
            border-radius: var(--border-radius);
            margin-bottom: 3rem;
        }
        .stars {
            font-size: 2.5rem;
            color: #ffd700;
            margin: 1rem 0;
            cursor: pointer;
        }
        .stars i:hover {
            transform: scale(1.2);
        }
        .comment-form, .rating-form {
            background: white;
            padding: 2.5rem;
            border-radius: var(--border-radius);
            box-shadow: var(--shadow);
            margin-bottom: 2rem;
        }
        .form-group {
            margin-bottom: 1.5rem;
        }
        .form-group label {
            display: block;
            margin-bottom: 0.5rem;
            font-weight: 600;
        }
        .form-control {
            width: 100%;
            padding: 1rem;
            border: 1px solid #ddd;
            border-radius: 8px;
            font-size: 1rem;
            transition: var(--transition);
        }
        .form-control:focus {
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(74, 28, 139, 0.2);
            outline: none;
        }
        textarea.form-control {
            min-height: 150px;
            resize: vertical;
        }
        .submit-btn {
            background: var(--primary);
            color: white;
            border: none;
            padding: 1rem 2.5rem;
            border-radius: 50px;
            font-weight: 700;
            cursor: pointer;
            transition: var(--transition);
        }
        .submit-btn:hover {
            background: #3a0c6b;
            transform: translateY(-3px);
        }
        .web-links {
            background: #1a1a2e;
            padding: 3rem 0;
            color: #ddd;
        }
        .web-links .container {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 2rem;
        }
        .web-link {
            background: rgba(255,255,255,0.05);
            padding: 1.5rem;
            border-radius: 10px;
            transition: var(--transition);
        }
        .web-link:hover {
            background: rgba(255,255,255,0.1);
            transform: translateY(-5px);
        }
        .web-link a {
            display: block;
            color: #ffcc00;
            line-height: 1.6;
        }
        .web-link a:hover {
            color: white;
            text-decoration: underline;
        }
        .site-footer {
            background: #0d0d1a;
            color: #aaa;
            padding: 2.5rem 0;
            text-align: center;
        }
        .footer-content {
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 1.5rem;
        }
        .social-links {
            display: flex;
            gap: 1.5rem;
            font-size: 1.5rem;
        }
        .social-links a:hover {
            color: var(--secondary);
            transform: scale(1.2);
        }
        .copyright {
            font-size: 0.95rem;
            border-top: 1px solid #333;
            padding-top: 1.5rem;
            width: 100%;
        }
        @media (max-width: 768px) {
            h1 {
                font-size: 2.2rem;
            }
            h2 {
                font-size: 1.7rem;
            }
            .main-nav ul {
                display: none;
                position: absolute;
                top: 100%;
                left: 0;
                width: 100%;
                background: var(--primary);
                flex-direction: column;
                padding: 1rem 0;
                text-align: center;
                box-shadow: 0 10px 15px rgba(0,0,0,0.1);
            }
            .main-nav ul.active {
                display: flex;
            }
            .hamburger {
                display: block;
            }
            .download-buttons {
                flex-direction: column;
            }
            .btn {
                justify-content: center;
            }
        }
        .text-center { text-align: center; }
        .mb-0 { margin-bottom: 0; }
        .mt-4 { margin-top: 2rem; }
        .emoji { font-size: 1.2em; }