:root {
            --primary-color: #2ecc71;
            --primary-dark: #27ae60;
            --secondary-color: #3498db;
            --dark-color: #2c3e50;
            --light-color: #ecf0f1;
            --gray-color: #95a5a6;
            --danger-color: #e74c3c;
            --warning-color: #f39c12;
            --shadow: 0 4px 12px rgba(0,0,0,0.1);
            --border-radius: 8px;
            --transition: all 0.3s ease;
        }
        * {
            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: #f9f9f9;
            overflow-x: hidden;
        }
        a {
            text-decoration: none;
            color: var(--secondary-color);
            transition: var(--transition);
        }
        a:hover {
            color: var(--primary-dark);
        }
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        .site-header {
            background-color: white;
            box-shadow: var(--shadow);
            position: sticky;
            top: 0;
            z-index: 1000;
        }
        .header-container {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 15px 0;
        }
        .my-logo {
            font-family: 'Arial Black', sans-serif;
            font-size: 2.2rem;
            font-weight: 900;
            color: var(--primary-color);
            text-transform: uppercase;
            letter-spacing: -1px;
        }
        .my-logo span {
            color: var(--dark-color);
        }
        .my-logo:hover {
            transform: scale(1.02);
        }
        .main-nav ul {
            display: flex;
            list-style: none;
            gap: 25px;
        }
        .main-nav a {
            font-weight: 600;
            color: var(--dark-color);
            padding: 5px 0;
            border-bottom: 2px solid transparent;
        }
        .main-nav a:hover, .main-nav a.active {
            color: var(--primary-color);
            border-bottom-color: var(--primary-color);
        }
        .hamburger {
            display: none;
            font-size: 1.8rem;
            cursor: pointer;
            color: var(--dark-color);
        }
        .breadcrumb {
            padding: 15px 0;
            background-color: #f1f8ff;
            font-size: 0.9rem;
        }
        .breadcrumb a {
            color: var(--gray-color);
        }
        .breadcrumb a:hover {
            color: var(--secondary-color);
        }
        .breadcrumb span {
            color: var(--dark-color);
            font-weight: 600;
        }
        .content-wrapper {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 40px;
            margin: 30px 0;
        }
        main {
            background-color: white;
            padding: 40px;
            border-radius: var(--border-radius);
            box-shadow: var(--shadow);
        }
        article h1 {
            color: var(--dark-color);
            font-size: 2.8rem;
            margin-bottom: 20px;
            line-height: 1.2;
            border-bottom: 3px solid var(--primary-color);
            padding-bottom: 15px;
        }
        article h2 {
            color: var(--dark-color);
            font-size: 2rem;
            margin: 40px 0 20px;
            padding-bottom: 10px;
            border-bottom: 1px dashed var(--gray-color);
        }
        article h3 {
            color: var(--primary-dark);
            font-size: 1.5rem;
            margin: 30px 0 15px;
        }
        article h4 {
            color: var(--secondary-color);
            font-size: 1.2rem;
            margin: 20px 0 10px;
        }
        article p {
            margin-bottom: 20px;
            text-align: justify;
        }
        article strong {
            color: var(--dark-color);
            font-weight: 700;
        }
        article em {
            color: var(--gray-color);
            font-style: italic;
        }
        .article-meta {
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin-bottom: 30px;
            padding-bottom: 20px;
            border-bottom: 1px solid #eee;
            color: var(--gray-color);
            font-size: 0.95rem;
        }
        .update-time {
            background-color: #fff8e1;
            padding: 8px 15px;
            border-radius: 20px;
            font-weight: 600;
            color: var(--warning-color);
        }
        .featured-image {
            width: 100%;
            height: auto;
            border-radius: var(--border-radius);
            margin: 25px 0;
            box-shadow: 0 8px 20px rgba(0,0,0,0.15);
            transition: var(--transition);
        }
        .featured-image:hover {
            transform: translateY(-5px);
            box-shadow: 0 12px 25px rgba(0,0,0,0.2);
        }
        .caption {
            text-align: center;
            font-style: italic;
            color: var(--gray-color);
            margin-top: -15px;
            margin-bottom: 30px;
        }
        .info-box {
            background-color: #f0f7ff;
            border-left: 5px solid var(--secondary-color);
            padding: 20px;
            margin: 25px 0;
            border-radius: 0 var(--border-radius) var(--border-radius) 0;
        }
        .info-box h4 {
            margin-top: 0;
            color: var(--secondary-color);
        }
        .cta-button {
            display: inline-block;
            background: linear-gradient(to right, var(--primary-color), var(--primary-dark));
            color: white;
            padding: 12px 28px;
            border-radius: 50px;
            font-weight: bold;
            margin: 15px 0;
            box-shadow: 0 4px 15px rgba(46, 204, 113, 0.3);
            transition: var(--transition);
        }
        .cta-button:hover {
            transform: translateY(-3px);
            box-shadow: 0 6px 20px rgba(46, 204, 113, 0.4);
            color: white;
        }
        aside {
            position: sticky;
            top: 120px;
            height: fit-content;
        }
        .sidebar-widget {
            background-color: white;
            padding: 25px;
            margin-bottom: 25px;
            border-radius: var(--border-radius);
            box-shadow: var(--shadow);
        }
        .sidebar-widget h3 {
            color: var(--dark-color);
            font-size: 1.3rem;
            margin-bottom: 20px;
            padding-bottom: 10px;
            border-bottom: 2px solid var(--primary-color);
        }
        .search-form {
            display: flex;
        }
        .search-form input {
            flex: 1;
            padding: 12px 15px;
            border: 1px solid #ddd;
            border-right: none;
            border-radius: var(--border-radius) 0 0 var(--border-radius);
            font-size: 1rem;
        }
        .search-form button {
            background-color: var(--primary-color);
            color: white;
            border: none;
            padding: 0 20px;
            border-radius: 0 var(--border-radius) var(--border-radius) 0;
            cursor: pointer;
            transition: var(--transition);
        }
        .search-form button:hover {
            background-color: var(--primary-dark);
        }
        .rating-widget {
            text-align: center;
        }
        .stars {
            font-size: 2rem;
            color: var(--warning-color);
            margin: 10px 0;
            cursor: pointer;
        }
        .stars i {
            margin: 0 2px;
            transition: var(--transition);
        }
        .stars i:hover {
            transform: scale(1.2);
        }
        .score-display {
            font-size: 1.2rem;
            font-weight: bold;
            color: var(--dark-color);
        }
        .comments-section {
            margin-top: 50px;
            padding-top: 30px;
            border-top: 2px solid #eee;
        }
        .comment-form textarea {
            width: 100%;
            padding: 15px;
            border: 1px solid #ddd;
            border-radius: var(--border-radius);
            font-family: inherit;
            font-size: 1rem;
            margin-bottom: 15px;
            resize: vertical;
            min-height: 120px;
        }
        .comment-form button {
            background-color: var(--secondary-color);
            color: white;
            border: none;
            padding: 12px 25px;
            border-radius: var(--border-radius);
            cursor: pointer;
            font-weight: bold;
            transition: var(--transition);
        }
        .comment-form button:hover {
            background-color: #2980b9;
        }
        .comment {
            background-color: #f8f9fa;
            padding: 20px;
            border-radius: var(--border-radius);
            margin-bottom: 20px;
            border-left: 4px solid var(--primary-color);
        }
        .comment-header {
            display: flex;
            justify-content: space-between;
            margin-bottom: 10px;
            font-size: 0.9rem;
            color: var(--gray-color);
        }
        .site-footer {
            background-color: var(--dark-color);
            color: white;
            padding: 50px 0 20px;
            margin-top: 60px;
        }
        .footer-container {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 40px;
            margin-bottom: 40px;
        }
        .footer-col h4 {
            font-size: 1.3rem;
            margin-bottom: 20px;
            color: var(--light-color);
            position: relative;
            padding-bottom: 10px;
        }
        .footer-col h4::after {
            content: '';
            position: absolute;
            left: 0;
            bottom: 0;
            width: 50px;
            height: 2px;
            background-color: var(--primary-color);
        }
        .footer-col ul {
            list-style: none;
        }
        .footer-col ul li {
            margin-bottom: 10px;
        }
        .footer-col a {
            color: #bdc3c7;
        }
        .footer-col a:hover {
            color: var(--primary-color);
            padding-left: 5px;
        }
        friend-link {
            display: block;
            background-color: rgba(255,255,255,0.05);
            padding: 15px;
            border-radius: var(--border-radius);
            margin-bottom: 10px;
            transition: var(--transition);
        }
        friend-link:hover {
            background-color: rgba(255,255,255,0.1);
            transform: translateX(5px);
        }
        .copyright {
            text-align: center;
            padding-top: 20px;
            border-top: 1px solid rgba(255,255,255,0.1);
            color: #95a5a6;
            font-size: 0.9rem;
        }
        @media (max-width: 992px) {
            .content-wrapper {
                grid-template-columns: 1fr;
            }
            aside {
                position: static;
            }
        }
        @media (max-width: 768px) {
            .main-nav {
                position: fixed;
                top: 80px;
                left: -100%;
                width: 100%;
                background-color: white;
                box-shadow: var(--shadow);
                padding: 20px;
                transition: var(--transition);
                z-index: 999;
            }
            .main-nav.active {
                left: 0;
            }
            .main-nav ul {
                flex-direction: column;
                gap: 0;
            }
            .main-nav li {
                border-bottom: 1px solid #eee;
                padding: 15px 0;
            }
            .hamburger {
                display: block;
            }
            .header-container {
                padding: 15px 0;
            }
            article h1 {
                font-size: 2.2rem;
            }
            article h2 {
                font-size: 1.7rem;
            }
            main {
                padding: 25px;
            }
        }