:root {
            --primary-color: #0033a0;
            --secondary-color: #ffcc00;
            --accent-color: #e60012;
            --text-color: #333;
            --light-bg: #f5f5f5;
            --dark-bg: #1a1a1a;
            --font-main: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
        }
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        body {
            font-family: var(--font-main);
            line-height: 1.8;
            color: var(--text-color);
            background-color: #fff;
            overflow-x: hidden;
        }
        a {
            text-decoration: none;
            color: var(--primary-color);
            transition: color 0.3s ease;
        }
        a:hover {
            color: var(--accent-color);
            text-decoration: underline;
        }
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        header {
            background: linear-gradient(135deg, var(--dark-bg), var(--primary-color));
            color: white;
            padding: 20px 0;
            box-shadow: 0 4px 12px rgba(0,0,0,0.1);
            position: sticky;
            top: 0;
            z-index: 1000;
        }
        .header-top {
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
        }
        .logo a {
            font-size: 2.5rem;
            font-weight: bold;
            color: var(--secondary-color);
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .logo a:hover {
            color: white;
        }
        .search-bar {
            flex: 1;
            max-width: 400px;
            margin: 0 20px;
        }
        .search-bar form {
            display: flex;
        }
        .search-bar input {
            flex: 1;
            padding: 12px 15px;
            border: none;
            border-radius: 30px 0 0 30px;
            font-size: 1rem;
            outline: none;
        }
        .search-bar button {
            background-color: var(--secondary-color);
            color: var(--dark-bg);
            border: none;
            padding: 12px 20px;
            border-radius: 0 30px 30px 0;
            cursor: pointer;
            font-weight: bold;
            transition: background 0.3s;
        }
        .search-bar button:hover {
            background-color: #ffd633;
        }
        .hamburger {
            display: none;
            font-size: 1.8rem;
            background: none;
            border: none;
            color: white;
            cursor: pointer;
        }
        nav {
            display: flex;
            justify-content: center;
            margin-top: 15px;
            width: 100%;
        }
        .nav-links {
            display: flex;
            list-style: none;
            gap: 30px;
            flex-wrap: wrap;
        }
        .nav-links li a {
            color: white;
            font-size: 1.1rem;
            padding: 8px 15px;
            border-radius: 5px;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .nav-links li a:hover {
            background-color: rgba(255,255,255,0.2);
            text-decoration: none;
        }
        .breadcrumb {
            padding: 15px 0;
            font-size: 0.9rem;
            color: #aaa;
            background-color: var(--light-bg);
            margin-top: 10px;
        }
        .breadcrumb a {
            color: var(--primary-color);
        }
        .breadcrumb a:hover {
            color: var(--accent-color);
        }
        main {
            padding: 40px 0;
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 40px;
        }
        .article-content {
            background: white;
            padding: 30px;
            border-radius: 15px;
            box-shadow: 0 6px 20px rgba(0,0,0,0.05);
        }
        h1 {
            font-size: 2.8rem;
            color: var(--primary-color);
            margin-bottom: 25px;
            line-height: 1.3;
            border-left: 8px solid var(--secondary-color);
            padding-left: 20px;
        }
        h2 {
            font-size: 2rem;
            color: var(--dark-bg);
            margin: 40px 0 20px;
            padding-bottom: 10px;
            border-bottom: 3px solid var(--light-bg);
        }
        h3 {
            font-size: 1.5rem;
            color: var(--accent-color);
            margin: 30px 0 15px;
        }
        p {
            margin-bottom: 25px;
            font-size: 1.1rem;
            text-align: justify;
        }
        .highlight {
            background-color: #fff9e6;
            padding: 25px;
            border-left: 5px solid var(--secondary-color);
            margin: 30px 0;
            border-radius: 10px;
        }
        .featured-img {
            width: 100%;
            max-width: 800px;
            height: auto;
            border-radius: 12px;
            margin: 30px auto;
            display: block;
            box-shadow: 0 8px 25px rgba(0,0,0,0.1);
            transition: transform 0.5s ease;
        }
        .featured-img:hover {
            transform: scale(1.02);
        }
        .internal-links {
            display: flex;
            flex-wrap: wrap;
            gap: 15px;
            margin: 40px 0;
            padding: 20px;
            background-color: var(--light-bg);
            border-radius: 12px;
        }
        .internal-links a {
            background-color: white;
            padding: 12px 20px;
            border-radius: 50px;
            box-shadow: 0 3px 10px rgba(0,0,0,0.08);
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .internal-links a:hover {
            background-color: var(--secondary-color);
            transform: translateY(-3px);
            box-shadow: 0 6px 15px rgba(0,0,0,0.15);
        }
        aside {
            background-color: var(--light-bg);
            padding: 25px;
            border-radius: 15px;
            height: fit-content;
            position: sticky;
            top: 150px;
        }
        .user-actions h3 {
            color: var(--primary-color);
            margin-top: 0;
        }
        .comment-form, .rating-form {
            margin-bottom: 30px;
        }
        .comment-form textarea, .rating-form select, .comment-form input, .rating-form input {
            width: 100%;
            padding: 15px;
            margin-bottom: 15px;
            border: 2px solid #ddd;
            border-radius: 8px;
            font-size: 1rem;
            transition: border 0.3s;
        }
        .comment-form textarea:focus, .rating-form select:focus, .comment-form input:focus, .rating-form input:focus {
            border-color: var(--primary-color);
            outline: none;
        }
        .rating-stars {
            display: flex;
            gap: 10px;
            margin-bottom: 15px;
            justify-content: center;
        }
        .rating-stars i {
            color: #ddd;
            font-size: 1.8rem;
            cursor: pointer;
            transition: color 0.3s;
        }
        .rating-stars i:hover, .rating-stars i.active {
            color: var(--secondary-color);
        }
        .btn-submit {
            background-color: var(--primary-color);
            color: white;
            border: none;
            padding: 15px 30px;
            border-radius: 8px;
            cursor: pointer;
            font-size: 1.1rem;
            width: 100%;
            transition: background 0.3s;
        }
        .btn-submit:hover {
            background-color: var(--accent-color);
        }
        footer {
            background-color: var(--dark-bg);
            color: white;
            padding: 50px 0 20px;
            margin-top: 60px;
        }
        .footer-content {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 40px;
            margin-bottom: 40px;
        }
        .footer-links h4 {
            color: var(--secondary-color);
            margin-bottom: 20px;
            font-size: 1.3rem;
        }
        .footer-links ul {
            list-style: none;
        }
        .footer-links ul li {
            margin-bottom: 12px;
        }
        .footer-links ul li a {
            color: #ccc;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .footer-links ul li a:hover {
            color: var(--secondary-color);
            padding-left: 10px;
        }
        friend-link {
            display: block;
            background-color: rgba(255,255,255,0.05);
            padding: 20px;
            border-radius: 10px;
            margin-top: 20px;
        }
        friend-link h4 {
            color: var(--secondary-color);
        }
        .copyright {
            text-align: center;
            padding-top: 20px;
            border-top: 1px solid #444;
            font-size: 0.9rem;
            color: #aaa;
        }
        @media (max-width: 992px) {
            main {
                grid-template-columns: 1fr;
            }
            aside {
                position: static;
            }
            .header-top {
                flex-direction: column;
                align-items: flex-start;
                gap: 20px;
            }
            .search-bar {
                max-width: 100%;
                width: 100%;
                order: 3;
                margin: 20px 0 0;
            }
            .hamburger {
                display: block;
                position: absolute;
                top: 25px;
                right: 20px;
            }
            nav {
                display: none;
                width: 100%;
            }
            .nav-links {
                flex-direction: column;
                gap: 10px;
            }
            .nav-active {
                display: flex;
            }
            h1 {
                font-size: 2.2rem;
            }
            h2 {
                font-size: 1.8rem;
            }
        }
        @media (max-width: 576px) {
            .article-content, aside {
                padding: 20px;
            }
            .logo a {
                font-size: 2rem;
            }
        }
        @keyframes fadeIn {
            from { opacity: 0; transform: translateY(20px); }
            to { opacity: 1; transform: translateY(0); }
        }
        .article-content, aside {
            animation: fadeIn 0.8s ease-out;
        }