:root {
            --primary: #7c3aed;
            --primary-dark: #5b21b6;
            --secondary: #f59e0b;
            --accent: #10b981;
            --dark: #1f2937;
            --light: #f9fafb;
            --gray: #9ca3af;
            --text: #374151;
            --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
            --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
            line-height: 1.6;
            color: var(--text);
            background-color: var(--light);
            overflow-x: hidden;
        }
        a {
            color: inherit;
            text-decoration: none;
            transition: var(--transition);
        }
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        .site-header {
            background: linear-gradient(135deg, var(--dark) 0%, #111827 100%);
            color: white;
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: var(--shadow);
        }
        .header-top {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 1rem 0;
        }
        .my-logo {
            font-size: 2rem;
            font-weight: 800;
            background: linear-gradient(to right, var(--primary), var(--secondary));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .my-logo:hover {
            transform: scale(1.05);
        }
        .mobile-toggle {
            display: none;
            background: none;
            border: none;
            color: white;
            font-size: 1.5rem;
            cursor: pointer;
        }
        .nav-main ul {
            display: flex;
            list-style: none;
            gap: 2rem;
        }
        .nav-main a {
            padding: 0.5rem 0;
            position: relative;
            font-weight: 600;
        }
        .nav-main a:hover {
            color: var(--secondary);
        }
        .nav-main a::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 0;
            height: 2px;
            background: var(--secondary);
            transition: var(--transition);
        }
        .nav-main a:hover::after {
            width: 100%;
        }
        .breadcrumb {
            padding: 0.75rem 0;
            font-size: 0.9rem;
            background-color: rgba(255, 255, 255, 0.05);
        }
        .breadcrumb a {
            color: var(--gray);
        }
        .breadcrumb a:hover {
            color: white;
        }
        .breadcrumb .separator {
            margin: 0 0.5rem;
        }
        .hero {
            padding: 4rem 0;
            background: linear-gradient(rgba(31, 41, 55, 0.9), rgba(31, 41, 55, 0.95)), url('https://images.unsplash.com/photo-1511379938547-c1f69419868d?ixlib=rb-4.0.3&auto=format&fit=crop&w=1200&q=80');
            background-size: cover;
            background-position: center;
            color: white;
            text-align: center;
        }
        .hero h1 {
            font-size: 3.5rem;
            margin-bottom: 1rem;
            background: linear-gradient(to right, #fff, var(--secondary));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .hero p {
            font-size: 1.2rem;
            max-width: 800px;
            margin: 0 auto 2rem;
            color: #d1d5db;
        }
        .meta-info {
            display: flex;
            justify-content: center;
            gap: 2rem;
            font-size: 0.9rem;
            color: var(--gray);
            margin-top: 2rem;
        }
        .search-bar {
            max-width: 600px;
            margin: 2rem auto;
            position: relative;
        }
        .search-bar input {
            width: 100%;
            padding: 1rem 1.5rem;
            border-radius: 50px;
            border: 2px solid var(--primary);
            font-size: 1rem;
            background: white;
            transition: var(--transition);
        }
        .search-bar input:focus {
            outline: none;
            box-shadow: 0 0 0 3px rgba(124, 58, 237, 0.3);
        }
        .search-bar button {
            position: absolute;
            right: 10px;
            top: 50%;
            transform: translateY(-50%);
            background: var(--primary);
            color: white;
            border: none;
            border-radius: 50%;
            width: 40px;
            height: 40px;
            cursor: pointer;
            transition: var(--transition);
        }
        .search-bar button:hover {
            background: var(--primary-dark);
        }
        .main-content {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 3rem;
            padding: 3rem 0;
        }
        @media (max-width: 992px) {
            .main-content {
                grid-template-columns: 1fr;
            }
        }
        .article-body {
            background: white;
            border-radius: 12px;
            padding: 3rem;
            box-shadow: var(--shadow);
        }
        .article-body h2 {
            color: var(--primary-dark);
            margin: 2.5rem 0 1rem;
            padding-bottom: 0.5rem;
            border-bottom: 3px solid var(--secondary);
            font-size: 2rem;
        }
        .article-body h3 {
            color: var(--dark);
            margin: 2rem 0 1rem;
            font-size: 1.5rem;
        }
        .article-body h4 {
            color: var(--text);
            margin: 1.5rem 0 0.75rem;
            font-size: 1.2rem;
        }
        .article-body p {
            margin-bottom: 1.5rem;
            text-align: justify;
        }
        .article-body strong {
            color: var(--primary);
            font-weight: 700;
        }
        .highlight-box {
            background: linear-gradient(135deg, #f0f9ff 0%, #e0f2fe 100%);
            border-left: 4px solid var(--primary);
            padding: 1.5rem;
            margin: 2rem 0;
            border-radius: 0 8px 8px 0;
        }
        .feature-img {
            width: 100%;
            border-radius: 12px;
            margin: 2rem 0;
            box-shadow: var(--shadow);
            transition: var(--transition);
        }
        .feature-img:hover {
            transform: translateY(-5px);
        }
        .related-links {
            margin: 2rem 0;
            padding: 1.5rem;
            background: #f8fafc;
            border-radius: 8px;
        }
        .related-links h3 {
            margin-top: 0;
        }
        .related-links ul {
            list-style: none;
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
            gap: 1rem;
        }
        .related-links li a {
            display: block;
            padding: 0.75rem;
            background: white;
            border-radius: 6px;
            border: 1px solid #e2e8f0;
        }
        .related-links li a:hover {
            border-color: var(--primary);
            background: #f5f3ff;
        }
        .sidebar {
            display: flex;
            flex-direction: column;
            gap: 2rem;
        }
        .sidebar-widget {
            background: white;
            border-radius: 12px;
            padding: 1.5rem;
            box-shadow: var(--shadow);
        }
        .sidebar-widget h3 {
            color: var(--primary-dark);
            margin-bottom: 1rem;
            padding-bottom: 0.5rem;
            border-bottom: 2px solid #e5e7eb;
        }
        .rating-widget {
            text-align: center;
        }
        .stars {
            font-size: 2rem;
            color: var(--gray);
            margin: 1rem 0;
            cursor: pointer;
        }
        .stars .active {
            color: var(--secondary);
        }
        .rating-btn {
            background: var(--primary);
            color: white;
            border: none;
            padding: 0.75rem 2rem;
            border-radius: 50px;
            cursor: pointer;
            font-weight: 600;
            transition: var(--transition);
            width: 100%;
        }
        .rating-btn:hover {
            background: var(--primary-dark);
        }
        .comments-section {
            margin-top: 3rem;
            padding-top: 3rem;
            border-top: 2px solid #e5e7eb;
        }
        .comment-form {
            background: #f8fafc;
            padding: 2rem;
            border-radius: 12px;
            margin-bottom: 3rem;
        }
        .form-group {
            margin-bottom: 1.5rem;
        }
        .form-group label {
            display: block;
            margin-bottom: 0.5rem;
            font-weight: 600;
        }
        .form-group input,
        .form-group textarea {
            width: 100%;
            padding: 0.75rem;
            border: 1px solid #d1d5db;
            border-radius: 6px;
            font-family: inherit;
        }
        .form-group textarea {
            min-height: 150px;
            resize: vertical;
        }
        .submit-btn {
            background: var(--accent);
            color: white;
            border: none;
            padding: 1rem 2rem;
            border-radius: 6px;
            cursor: pointer;
            font-weight: 600;
            transition: var(--transition);
        }
        .submit-btn:hover {
            background: #0da271;
        }
        .site-footer {
            background: var(--dark);
            color: white;
            padding: 4rem 0 2rem;
            margin-top: 4rem;
        }
        .footer-content {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 3rem;
            margin-bottom: 3rem;
        }
        .footer-logo {
            font-size: 2rem;
            font-weight: 800;
            margin-bottom: 1rem;
            background: linear-gradient(to right, var(--primary), var(--secondary));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        friend-link {
            display: block;
            margin: 0.5rem 0;
            color: var(--gray);
        }
        friend-link:hover {
            color: var(--secondary);
        }
        .copyright {
            text-align: center;
            padding-top: 2rem;
            border-top: 1px solid #374151;
            color: var(--gray);
            font-size: 0.9rem;
        }
        @media (max-width: 768px) {
            .mobile-toggle {
                display: block;
            }
            .nav-main {
                display: none;
                position: absolute;
                top: 100%;
                left: 0;
                width: 100%;
                background: var(--dark);
                padding: 1rem;
                box-shadow: var(--shadow);
            }
            .nav-main.active {
                display: block;
            }
            .nav-main ul {
                flex-direction: column;
                gap: 0;
            }
            .nav-main li {
                margin: 0.5rem 0;
            }
            .hero h1 {
                font-size: 2.5rem;
            }
            .article-body {
                padding: 2rem;
            }
            .main-content {
                gap: 2rem;
            }
        }
        .text-center {
            text-align: center;
        }
        .emoji {
            font-size: 1.2em;
            margin-right: 0.3em;
        }
        .last-updated {
            color: var(--accent);
            font-weight: 600;
        }