* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
        }
        :root {
            --primary: #2a5caa;
            --secondary: #f39c12;
            --dark: #2c3e50;
            --light: #ecf0f1;
            --gray: #95a5a6;
            --success: #27ae60;
            --shadow: 0 4px 12px rgba(0,0,0,0.08);
            --transition: all 0.3s ease;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            background-color: #f8f9fa;
            color: #333;
            line-height: 1.7;
            display: flex;
            flex-direction: column;
            min-height: 100vh;
        }
        a {
            color: var(--primary);
            text-decoration: none;
            transition: var(--transition);
        }
        a:hover {
            color: var(--secondary);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        .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-size: 2.2rem;
            font-weight: 800;
            color: var(--primary);
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .my-logo i {
            color: var(--secondary);
        }
        .my-logo:hover {
            color: var(--dark);
        }
        .main-nav ul {
            display: flex;
            list-style: none;
            gap: 30px;
        }
        .main-nav a {
            font-weight: 600;
            font-size: 1.1rem;
            padding: 5px 0;
            position: relative;
        }
        .main-nav a::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 0;
            height: 2px;
            background-color: var(--secondary);
            transition: width 0.3s;
        }
        .main-nav a:hover::after {
            width: 100%;
        }
        .breadcrumb {
            background-color: var(--light);
            padding: 12px 0;
            font-size: 0.95rem;
        }
        .breadcrumb ol {
            display: flex;
            list-style: none;
            flex-wrap: wrap;
        }
        .breadcrumb li:not(:last-child)::after {
            content: '›';
            margin: 0 10px;
            color: var(--gray);
        }
        .hamburger {
            display: none;
            font-size: 1.8rem;
            cursor: pointer;
            color: var(--primary);
        }
        .search-module {
            background: linear-gradient(135deg, var(--primary), #1a4a8f);
            padding: 40px 0;
            text-align: center;
            color: white;
            margin-bottom: 40px;
        }
        .search-module h2 {
            margin-bottom: 20px;
            font-size: 2rem;
        }
        .search-form {
            max-width: 600px;
            margin: 0 auto;
            display: flex;
            border-radius: 50px;
            overflow: hidden;
            box-shadow: var(--shadow);
        }
        .search-form input {
            flex: 1;
            padding: 18px 25px;
            border: none;
            font-size: 1.1rem;
        }
        .search-form button {
            background-color: var(--secondary);
            color: white;
            border: none;
            padding: 0 30px;
            cursor: pointer;
            font-size: 1.2rem;
            transition: var(--transition);
        }
        .search-form button:hover {
            background-color: #e67e22;
        }
        main {
            flex: 1;
            padding: 30px 0;
        }
        .article-header {
            text-align: center;
            margin-bottom: 50px;
            padding-bottom: 30px;
            border-bottom: 1px solid #eee;
        }
        .article-header h1 {
            font-size: 2.8rem;
            color: var(--dark);
            margin-bottom: 20px;
            line-height: 1.2;
        }
        .meta-info {
            display: flex;
            justify-content: center;
            gap: 20px;
            color: var(--gray);
            font-size: 0.95rem;
        }
        .featured-image {
            width: 100%;
            border-radius: 12px;
            overflow: hidden;
            margin: 40px 0;
            box-shadow: var(--shadow);
        }
        .featured-image img {
            width: 100%;
            height: 500px;
            object-fit: cover;
        }
        .image-caption {
            text-align: center;
            font-style: italic;
            color: var(--gray);
            padding: 10px;
            background-color: #f9f9f9;
        }
        .content-area {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 50px;
        }
        @media (max-width: 992px) {
            .content-area {
                grid-template-columns: 1fr;
            }
        }
        .article-content {
            font-size: 1.1rem;
        }
        .article-content p {
            margin-bottom: 1.8rem;
            text-align: justify;
        }
        .article-content h2 {
            font-size: 2.2rem;
            color: var(--primary);
            margin: 60px 0 25px;
            padding-bottom: 10px;
            border-bottom: 2px solid var(--secondary);
        }
        .article-content h3 {
            font-size: 1.8rem;
            color: var(--dark);
            margin: 45px 0 20px;
        }
        .article-content h4 {
            font-size: 1.5rem;
            color: #555;
            margin: 35px 0 15px;
        }
        .article-content strong {
            color: var(--primary);
            font-weight: 700;
        }
        .article-content em {
            color: var(--secondary);
            font-style: italic;
        }
        .highlight-box {
            background-color: #e8f4fc;
            border-left: 5px solid var(--primary);
            padding: 25px;
            margin: 35px 0;
            border-radius: 0 8px 8px 0;
        }
        .related-links {
            background-color: #fff9e6;
            padding: 20px;
            border-radius: 8px;
            margin: 30px 0;
        }
        .related-links ul {
            list-style-position: inside;
            padding-left: 10px;
        }
        .related-links li {
            margin-bottom: 10px;
        }
        .sidebar {
            background-color: white;
            padding: 25px;
            border-radius: 12px;
            box-shadow: var(--shadow);
            align-self: start;
            position: sticky;
            top: 140px;
        }
        .sidebar-widget {
            margin-bottom: 35px;
        }
        .sidebar-widget h3 {
            font-size: 1.5rem;
            color: var(--dark);
            margin-bottom: 20px;
            padding-bottom: 10px;
            border-bottom: 1px solid #eee;
        }
        .rating-module, .comment-module {
            background-color: #f8f9fa;
            padding: 25px;
            border-radius: 10px;
            margin-top: 50px;
        }
        .rating-module h3, .comment-module h3 {
            color: var(--primary);
        }
        .stars {
            display: flex;
            gap: 10px;
            margin: 20px 0;
            justify-content: center;
        }
        .star {
            font-size: 2rem;
            color: var(--gray);
            cursor: pointer;
            transition: var(--transition);
        }
        .star:hover,
        .star.active {
            color: gold;
        }
        .rating-form, .comment-form {
            display: flex;
            flex-direction: column;
            gap: 15px;
        }
        .rating-form button, .comment-form button {
            background-color: var(--primary);
            color: white;
            border: none;
            padding: 15px;
            border-radius: 8px;
            cursor: pointer;
            font-size: 1.1rem;
            transition: var(--transition);
        }
        .rating-form button:hover, .comment-form button:hover {
            background-color: #1a4a8f;
        }
        .form-group {
            display: flex;
            flex-direction: column;
            gap: 8px;
        }
        .form-group input,
        .form-group textarea,
        .form-group select {
            padding: 15px;
            border: 1px solid #ddd;
            border-radius: 8px;
            font-size: 1rem;
        }
        .form-group textarea {
            min-height: 150px;
            resize: vertical;
        }
        .site-footer {
            background-color: var(--dark);
            color: white;
            padding: 50px 0 20px;
            margin-top: 80px;
        }
        .footer-content {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 40px;
            margin-bottom: 40px;
        }
        @media (max-width: 768px) {
            .footer-content {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (max-width: 480px) {
            .footer-content {
                grid-template-columns: 1fr;
            }
        }
        .footer-widget h4 {
            font-size: 1.3rem;
            margin-bottom: 25px;
            color: var(--secondary);
        }
        .footer-widget ul {
            list-style: none;
        }
        .footer-widget li {
            margin-bottom: 12px;
        }
        .footer-widget a {
            color: #ddd;
        }
        .footer-widget a:hover {
            color: var(--secondary);
            padding-left: 5px;
        }
        friend-link {
            display: block;
            background-color: #34495e;
            padding: 15px;
            border-radius: 8px;
            margin: 20px 0;
        }
        friend-link a {
            color: var(--secondary);
            font-weight: bold;
        }
        .copyright {
            text-align: center;
            padding-top: 30px;
            border-top: 1px solid #445566;
            font-size: 0.9rem;
            color: #aaa;
        }
        @media (max-width: 768px) {
            .hamburger {
                display: block;
            }
            .main-nav {
                position: fixed;
                top: 80px;
                left: 0;
                width: 100%;
                background-color: white;
                box-shadow: var(--shadow);
                padding: 20px;
                transform: translateY(-100%);
                opacity: 0;
                visibility: hidden;
                transition: var(--transition);
            }
            .main-nav.active {
                transform: translateY(0);
                opacity: 1;
                visibility: visible;
            }
            .main-nav ul {
                flex-direction: column;
                gap: 15px;
            }
            .article-header h1 {
                font-size: 2.2rem;
            }
            .content-area {
                gap: 30px;
            }
            .featured-image img {
                height: 300px;
            }
        }