:root {
            --primary-color: #4a6fa5;
            --secondary-color: #ff6b6b;
            --accent-color: #4ecdc4;
            --dark-color: #2d3436;
            --light-color: #f9f9f9;
            --text-color: #333;
            --shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
            --border-radius: 12px;
            --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: var(--text-color);
            background-color: var(--light-color);
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        a {
            text-decoration: none;
            color: var(--primary-color);
            transition: var(--transition);
        }
        a:hover {
            color: var(--secondary-color);
        }
        ul, ol {
            padding-left: 20px;
        }
        img {
            max-width: 100%;
            height: auto;
            border-radius: var(--border-radius);
        }
        .header {
            background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
            color: white;
            padding: 20px;
            border-radius: 0 0 var(--border-radius) var(--border-radius);
            box-shadow: var(--shadow);
            margin-bottom: 30px;
        }
        .header-top {
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
        }
        .my-logo {
            font-size: 2.5rem;
            font-weight: bold;
            color: white;
            text-shadow: 2px 2px 4px rgba(0,0,0,0.3);
            letter-spacing: 1px;
        }
        .my-logo:hover {
            color: #ffdd59;
        }
        .breadcrumb {
            margin: 15px 0;
            font-size: 0.9rem;
        }
        .breadcrumb a {
            color: #dfe6e9;
        }
        .breadcrumb a:hover {
            color: white;
        }
        .nav-container {
            display: flex;
            justify-content: space-between;
            align-items: center;
            position: relative;
        }
        .nav-links {
            display: flex;
            list-style: none;
            gap: 25px;
        }
        .nav-links a {
            color: white;
            font-weight: 600;
            padding: 8px 12px;
            border-radius: 6px;
        }
        .nav-links a:hover {
            background: rgba(255, 255, 255, 0.2);
        }
        .hamburger {
            display: none;
            font-size: 1.8rem;
            cursor: pointer;
            color: white;
        }
        .main-content {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 40px;
            margin-bottom: 40px;
        }
        @media (max-width: 768px) {
            .main-content {
                grid-template-columns: 1fr;
            }
        }
        .article-content {
            background: white;
            padding: 30px;
            border-radius: var(--border-radius);
            box-shadow: var(--shadow);
        }
        .sidebar {
            background: white;
            padding: 20px;
            border-radius: var(--border-radius);
            box-shadow: var(--shadow);
            align-self: start;
        }
        h1 {
            font-size: 2.8rem;
            color: var(--dark-color);
            margin-bottom: 20px;
            line-height: 1.2;
        }
        h2 {
            font-size: 2rem;
            color: var(--primary-color);
            margin: 30px 0 15px;
            padding-bottom: 10px;
            border-bottom: 3px solid var(--accent-color);
        }
        h3 {
            font-size: 1.6rem;
            color: var(--secondary-color);
            margin: 25px 0 10px;
        }
        h4 {
            font-size: 1.3rem;
            color: var(--dark-color);
            margin: 20px 0 10px;
        }
        p {
            margin-bottom: 20px;
            text-align: justify;
        }
        .highlight {
            background: #fff9db;
            padding: 15px;
            border-left: 5px solid #ffd43b;
            margin: 20px 0;
            border-radius: 0 var(--border-radius) var(--border-radius) 0;
        }
        .emoji {
            font-size: 1.2em;
            margin-right: 5px;
        }
        .search-box, .comment-form, .rating-form {
            background: #f8f9fa;
            padding: 20px;
            border-radius: var(--border-radius);
            margin-bottom: 30px;
            box-shadow: var(--shadow);
        }
        .search-box h3, .comment-form h3, .rating-form h3 {
            margin-top: 0;
        }
        form {
            display: flex;
            flex-direction: column;
            gap: 15px;
        }
        input, textarea, select {
            padding: 12px;
            border: 2px solid #ddd;
            border-radius: 8px;
            font-size: 1rem;
            transition: var(--transition);
        }
        input:focus, textarea:focus, select:focus {
            border-color: var(--primary-color);
            outline: none;
        }
        button {
            background: var(--primary-color);
            color: white;
            border: none;
            padding: 12px 20px;
            border-radius: 8px;
            cursor: pointer;
            font-weight: bold;
            transition: var(--transition);
        }
        button:hover {
            background: var(--secondary-color);
            transform: translateY(-3px);
        }
        .stars {
            display: flex;
            gap: 10px;
            font-size: 1.8rem;
            color: #ffd43b;
            cursor: pointer;
        }
        .stars i:hover {
            color: #ffa94d;
        }
        .featured-image {
            margin: 30px 0;
            text-align: center;
        }
        .featured-image img {
            box-shadow: var(--shadow);
            border: 5px solid white;
        }
        .image-caption {
            font-style: italic;
            color: #666;
            margin-top: 10px;
        }
        .footer {
            background: var(--dark-color);
            color: white;
            padding: 40px 20px;
            border-radius: var(--border-radius) var(--border-radius) 0 0;
            margin-top: 50px;
            text-align: center;
        }
        .footer-links {
            display: flex;
            justify-content: center;
            flex-wrap: wrap;
            gap: 30px;
            margin-bottom: 30px;
        }
        friend-link {
            display: inline-block;
            background: rgba(255, 255, 255, 0.1);
            padding: 10px 20px;
            border-radius: 6px;
            transition: var(--transition);
        }
        friend-link:hover {
            background: rgba(255, 255, 255, 0.2);
            transform: scale(1.05);
        }
        friend-link a {
            color: var(--accent-color);
            font-weight: bold;
        }
        .copyright {
            font-size: 0.9rem;
            color: #b2bec3;
            margin-top: 20px;
        }
        .update-time {
            font-style: italic;
            color: var(--secondary-color);
            margin-bottom: 20px;
            text-align: right;
        }
        @media (max-width: 768px) {
            .nav-links {
                display: none;
                flex-direction: column;
                position: absolute;
                top: 100%;
                left: 0;
                right: 0;
                background: var(--primary-color);
                padding: 20px;
                border-radius: 0 0 var(--border-radius) var(--border-radius);
                z-index: 1000;
            }
            .nav-links.active {
                display: flex;
            }
            .hamburger {
                display: block;
            }
            h1 {
                font-size: 2.2rem;
            }
            h2 {
                font-size: 1.8rem;
            }
            h3 {
                font-size: 1.4rem;
            }
        }