:root {
            --primary: #6a11cb;
            --secondary: #2575fc;
            --accent: #ff6b6b;
            --dark: #2d3436;
            --light: #f9f9f9;
            --gray: #dfe6e9;
            --shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
            --transition: all 0.3s ease;
        }
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
        }
        body {
            background-color: var(--light);
            color: var(--dark);
            line-height: 1.8;
            overflow-x: hidden;
        }
        a {
            text-decoration: none;
            color: inherit;
            transition: var(--transition);
        }
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        header {
            background: linear-gradient(135deg, var(--primary), var(--secondary));
            color: white;
            padding: 1rem 0;
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: var(--shadow);
        }
        .header-top {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .my-logo {
            font-size: 2.2rem;
            font-weight: 900;
            letter-spacing: -1px;
            background: linear-gradient(to right, #ffd166, #ff6b6b);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.2);
        }
        .my-logo:hover {
            transform: scale(1.05);
        }
        nav {
            display: flex;
            align-items: center;
        }
        .nav-links {
            display: flex;
            list-style: none;
            gap: 2rem;
        }
        .nav-links a {
            font-weight: 600;
            font-size: 1.1rem;
            padding: 0.5rem 1rem;
            border-radius: 30px;
        }
        .nav-links a:hover {
            background-color: rgba(255, 255, 255, 0.15);
        }
        .hamburger {
            display: none;
            font-size: 1.8rem;
            cursor: pointer;
            background: none;
            border: none;
            color: white;
        }
        .breadcrumb {
            padding: 1rem 0;
            background-color: #f1f2f6;
            font-size: 0.9rem;
            margin-bottom: 2rem;
        }
        .breadcrumb a {
            color: var(--primary);
        }
        .breadcrumb a:hover {
            text-decoration: underline;
        }
        .breadcrumb span {
            color: #636e72;
            margin: 0 5px;
        }
        main {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 3rem;
            padding: 2rem 0;
        }
        @media (max-width: 992px) {
            main {
                grid-template-columns: 1fr;
            }
        }
        .article-content {
            background: white;
            padding: 2.5rem;
            border-radius: 15px;
            box-shadow: var(--shadow);
        }
        .article-header {
            margin-bottom: 3rem;
            border-bottom: 3px solid var(--gray);
            padding-bottom: 1.5rem;
        }
        h1 {
            font-size: 2.8rem;
            margin-bottom: 1rem;
            color: var(--dark);
            line-height: 1.2;
            background: linear-gradient(to right, var(--primary), var(--secondary));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }
        .article-meta {
            display: flex;
            gap: 1.5rem;
            color: #636e72;
            font-size: 0.95rem;
            margin-bottom: 1rem;
        }
        .article-meta i {
            margin-right: 5px;
            color: var(--accent);
        }
        .intro {
            font-size: 1.3rem;
            color: #2d3436;
            margin-bottom: 2.5rem;
            padding: 1.5rem;
            background: linear-gradient(90deg, rgba(106, 17, 203, 0.05), rgba(37, 117, 252, 0.05));
            border-left: 5px solid var(--primary);
            border-radius: 0 10px 10px 0;
        }
        h2 {
            font-size: 2rem;
            margin: 2.5rem 0 1.2rem;
            color: var(--primary);
            padding-bottom: 0.5rem;
            border-bottom: 2px dashed var(--gray);
        }
        h3 {
            font-size: 1.6rem;
            margin: 2rem 0 1rem;
            color: var(--secondary);
        }
        h4 {
            font-size: 1.3rem;
            margin: 1.5rem 0 0.8rem;
            color: #555;
        }
        p {
            margin-bottom: 1.5rem;
            text-align: justify;
        }
        .highlight {
            background-color: #fff9db;
            padding: 1.5rem;
            border-radius: 10px;
            border-left: 4px solid #ffd43b;
            margin: 2rem 0;
            font-weight: 600;
        }
        .article-img {
            width: 100%;
            max-width: 800px;
            height: auto;
            border-radius: 12px;
            margin: 2rem auto;
            display: block;
            box-shadow: var(--shadow);
            transition: var(--transition);
        }
        .article-img:hover {
            transform: translateY(-5px);
        }
        .internal-link {
            color: var(--primary);
            font-weight: 600;
            border-bottom: 2px dotted var(--primary);
        }
        .internal-link:hover {
            color: var(--accent);
            border-bottom-style: solid;
        }
        .feature-list {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
            gap: 1.5rem;
            margin: 2rem 0;
        }
        .feature-card {
            background: linear-gradient(145deg, #ffffff, #f0f0f0);
            padding: 1.5rem;
            border-radius: 10px;
            box-shadow: var(--shadow);
            text-align: center;
            transition: var(--transition);
        }
        .feature-card:hover {
            transform: translateY(-10px);
        }
        .feature-card i {
            font-size: 2.5rem;
            color: var(--primary);
            margin-bottom: 1rem;
        }
        .quote {
            font-style: italic;
            font-size: 1.2rem;
            color: #555;
            padding: 2rem;
            margin: 2.5rem 0;
            background: linear-gradient(135deg, #fdfcfb, #f5f7fa);
            border-radius: 10px;
            position: relative;
        }
        .quote::before {
            content: '"';
            font-size: 5rem;
            color: var(--gray);
            position: absolute;
            top: -20px;
            left: 20px;
            opacity: 0.5;
        }
        .quote-author {
            text-align: right;
            font-weight: bold;
            color: var(--secondary);
            margin-top: 1rem;
        }
        .sidebar {
            background: white;
            padding: 2rem;
            border-radius: 15px;
            box-shadow: var(--shadow);
            align-self: start;
            position: sticky;
            top: 120px;
        }
        .sidebar h3 {
            margin-top: 0;
            color: var(--primary);
            padding-bottom: 0.5rem;
            border-bottom: 2px solid var(--gray);
        }
        .search-box {
            margin-bottom: 2rem;
        }
        .search-box form {
            display: flex;
        }
        .search-box input {
            flex: 1;
            padding: 0.8rem 1rem;
            border: 2px solid var(--gray);
            border-radius: 30px 0 0 30px;
            outline: none;
            transition: var(--transition);
        }
        .search-box input:focus {
            border-color: var(--primary);
        }
        .search-box button {
            background: linear-gradient(to right, var(--primary), var(--secondary));
            color: white;
            border: none;
            padding: 0 1.5rem;
            border-radius: 0 30px 30px 0;
            cursor: pointer;
            transition: var(--transition);
        }
        .search-box button:hover {
            opacity: 0.9;
        }
        .toc {
            background: #f8f9fa;
            padding: 1.5rem;
            border-radius: 10px;
            margin-bottom: 2rem;
        }
        .toc ul {
            list-style: none;
            padding-left: 1rem;
        }
        .toc li {
            margin-bottom: 0.8rem;
        }
        .toc a {
            color: var(--dark);
            display: block;
            padding: 0.3rem 0;
        }
        .toc a:hover {
            color: var(--primary);
            padding-left: 5px;
        }
        .rating-widget {
            text-align: center;
            padding: 1.5rem;
            background: linear-gradient(135deg, #fdfcfb, #f5f7fa);
            border-radius: 10px;
            margin-bottom: 2rem;
        }
        .stars {
            font-size: 1.8rem;
            color: #ffd43b;
            margin: 1rem 0;
            cursor: pointer;
        }
        .stars i:hover {
            transform: scale(1.2);
        }
        .comment-form textarea {
            width: 100%;
            padding: 1rem;
            border: 2px solid var(--gray);
            border-radius: 10px;
            margin-bottom: 1rem;
            resize: vertical;
            min-height: 120px;
            transition: var(--transition);
        }
        .comment-form textarea:focus {
            border-color: var(--primary);
            outline: none;
        }
        .comment-form button {
            background: linear-gradient(to right, var(--primary), var(--secondary));
            color: white;
            border: none;
            padding: 0.8rem 2rem;
            border-radius: 30px;
            cursor: pointer;
            font-weight: 600;
            width: 100%;
            transition: var(--transition);
        }
        .comment-form button:hover {
            opacity: 0.9;
            transform: translateY(-3px);
        }
        footer {
            background: linear-gradient(135deg, var(--dark), #1a1a1a);
            color: white;
            padding: 3rem 0 1.5rem;
            margin-top: 4rem;
        }
        .footer-content {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 2rem;
            margin-bottom: 2rem;
        }
        .footer-section h3 {
            color: white;
            margin-bottom: 1.5rem;
            font-size: 1.5rem;
        }
        .footer-links {
            list-style: none;
        }
        .footer-links li {
            margin-bottom: 0.8rem;
        }
        .footer-links a {
            color: #b2bec3;
        }
        .footer-links a:hover {
            color: white;
            padding-left: 5px;
        }
        friend-link {
            display: inline-block;
            background: rgba(255, 255, 255, 0.1);
            padding: 0.5rem 1rem;
            margin: 0.3rem;
            border-radius: 20px;
            font-size: 0.9rem;
        }
        friend-link:hover {
            background: rgba(255, 255, 255, 0.2);
        }
        .copyright {
            text-align: center;
            padding-top: 1.5rem;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            color: #b2bec3;
            font-size: 0.9rem;
        }
        @media (max-width: 768px) {
            .nav-links {
                position: fixed;
                top: 80px;
                right: -100%;
                flex-direction: column;
                background: linear-gradient(135deg, var(--primary), var(--secondary));
                width: 100%;
                text-align: center;
                padding: 2rem 0;
                transition: 0.5s;
                box-shadow: var(--shadow);
                z-index: 999;
            }
            .nav-links.active {
                right: 0;
            }
            .nav-links li {
                margin: 1rem 0;
            }
            .hamburger {
                display: block;
            }
            h1 {
                font-size: 2.2rem;
            }
            h2 {
                font-size: 1.8rem;
            }
            .article-content {
                padding: 1.5rem;
            }
            .sidebar {
                position: static;
            }
        }