* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
        }
        :root {
            --primary-color: #1a5fb4;
            --secondary-color: #e95420;
            --accent-color: #ffa500;
            --dark-color: #333;
            --light-color: #f5f5f5;
            --gray-color: #777;
            --shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
            --transition: all 0.3s ease;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            line-height: 1.7;
            color: #333;
            background-color: #f9f9f9;
            overflow-x: hidden;
        }
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        header {
            background: linear-gradient(135deg, var(--primary-color), #0d4a9c);
            color: white;
            padding: 1rem 0;
            box-shadow: var(--shadow);
            position: sticky;
            top: 0;
            z-index: 1000;
        }
        .header-content {
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
        }
        .my-logo {
            font-size: 2rem;
            font-weight: 900;
            text-decoration: none;
            color: white;
            display: flex;
            align-items: center;
            gap: 10px;
            text-transform: uppercase;
            letter-spacing: 1px;
        }
        .my-logo i {
            color: var(--accent-color);
        }
        .hamburger {
            display: none;
            background: none;
            border: none;
            color: white;
            font-size: 1.8rem;
            cursor: pointer;
            padding: 5px;
        }
        nav ul {
            display: flex;
            list-style: none;
            gap: 1.5rem;
        }
        nav a {
            color: white;
            text-decoration: none;
            font-weight: 600;
            padding: 0.5rem 0.8rem;
            border-radius: 4px;
            transition: var(--transition);
        }
        nav a:hover, nav a.active {
            background-color: rgba(255, 255, 255, 0.15);
            transform: translateY(-2px);
        }
        .breadcrumb {
            background-color: #e9ecef;
            padding: 0.8rem 0;
            margin-bottom: 2rem;
            font-size: 0.9rem;
        }
        .breadcrumb a {
            color: var(--primary-color);
            text-decoration: none;
        }
        .breadcrumb a:hover {
            text-decoration: underline;
        }
        .search-bar {
            margin: 2rem 0;
            background: white;
            padding: 1.5rem;
            border-radius: 8px;
            box-shadow: var(--shadow);
        }
        .search-form {
            display: flex;
            max-width: 600px;
            margin: 0 auto;
        }
        .search-input {
            flex: 1;
            padding: 0.8rem 1rem;
            border: 2px solid #ddd;
            border-radius: 4px 0 0 4px;
            font-size: 1rem;
        }
        .search-btn {
            background-color: var(--primary-color);
            color: white;
            border: none;
            padding: 0 1.5rem;
            border-radius: 0 4px 4px 0;
            cursor: pointer;
            font-weight: 600;
            transition: var(--transition);
        }
        .search-btn:hover {
            background-color: #0d4a9c;
        }
        main {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 2.5rem;
            padding: 2rem 0;
        }
        article {
            background: white;
            padding: 2.5rem;
            border-radius: 8px;
            box-shadow: var(--shadow);
        }
        h1 {
            color: var(--primary-color);
            margin-bottom: 1.5rem;
            font-size: 2.5rem;
            line-height: 1.2;
            border-bottom: 3px solid var(--accent-color);
            padding-bottom: 0.5rem;
        }
        h2 {
            color: var(--secondary-color);
            margin: 2rem 0 1rem;
            font-size: 1.8rem;
        }
        h3 {
            color: var(--dark-color);
            margin: 1.8rem 0 1rem;
            font-size: 1.4rem;
        }
        h4 {
            color: #555;
            margin: 1.5rem 0 0.8rem;
            font-size: 1.1rem;
        }
        p {
            margin-bottom: 1.2rem;
            text-align: justify;
        }
        .lead {
            font-size: 1.2rem;
            font-weight: 600;
            color: #444;
            background-color: #f0f8ff;
            padding: 1.2rem;
            border-left: 4px solid var(--primary-color);
            border-radius: 0 4px 4px 0;
        }
        .article-img {
            width: 100%;
            max-width: 800px;
            height: auto;
            border-radius: 8px;
            margin: 1.5rem auto;
            display: block;
            box-shadow: var(--shadow);
            transition: transform 0.5s ease;
        }
        .article-img:hover {
            transform: scale(1.01);
        }
        .content-link {
            color: var(--primary-color);
            text-decoration: none;
            font-weight: 600;
            border-bottom: 1px dotted var(--primary-color);
            transition: var(--transition);
        }
        .content-link:hover {
            color: var(--secondary-color);
            border-bottom: 1px solid var(--secondary-color);
        }
        .highlight {
            background-color: #fff9e6;
            padding: 1.5rem;
            border-radius: 6px;
            border-left: 4px solid var(--accent-color);
            margin: 1.5rem 0;
        }
        .highlight strong {
            color: #b86a00;
        }
        ul, ol {
            margin-left: 1.5rem;
            margin-bottom: 1.2rem;
        }
        li {
            margin-bottom: 0.5rem;
        }
        table {
            width: 100%;
            border-collapse: collapse;
            margin: 1.5rem 0;
            box-shadow: 0 0 10px rgba(0,0,0,0.05);
        }
        th {
            background-color: var(--primary-color);
            color: white;
            padding: 1rem;
            text-align: left;
        }
        td {
            padding: 0.8rem 1rem;
            border-bottom: 1px solid #eee;
        }
        tr:hover {
            background-color: #f5f9ff;
        }
        aside {
            background: white;
            padding: 1.5rem;
            border-radius: 8px;
            box-shadow: var(--shadow);
            align-self: start;
            position: sticky;
            top: 100px;
        }
        .sidebar-section {
            margin-bottom: 2rem;
        }
        .sidebar-section h3 {
            color: var(--primary-color);
            font-size: 1.2rem;
            margin-bottom: 1rem;
            padding-bottom: 0.5rem;
            border-bottom: 2px solid #eee;
        }
        .rating-widget, .comment-widget {
            background: #f8f9fa;
            padding: 1.5rem;
            border-radius: 8px;
            margin: 2rem 0;
        }
        .stars {
            display: flex;
            gap: 5px;
            margin: 1rem 0;
        }
        .star {
            color: #ddd;
            font-size: 1.5rem;
            cursor: pointer;
            transition: var(--transition);
        }
        .star:hover, .star.active {
            color: #ffc107;
        }
        .rating-form, .comment-form {
            display: flex;
            flex-direction: column;
            gap: 1rem;
        }
        .form-group {
            display: flex;
            flex-direction: column;
        }
        .form-input, .form-textarea {
            padding: 0.8rem;
            border: 1px solid #ccc;
            border-radius: 4px;
            font-size: 1rem;
        }
        .form-textarea {
            min-height: 120px;
            resize: vertical;
        }
        .submit-btn {
            background-color: var(--secondary-color);
            color: white;
            border: none;
            padding: 0.8rem 1.5rem;
            border-radius: 4px;
            cursor: pointer;
            font-weight: 600;
            transition: var(--transition);
            align-self: flex-start;
        }
        .submit-btn:hover {
            background-color: #d14815;
        }
        footer {
            background-color: #2c3e50;
            color: white;
            padding: 3rem 0 1.5rem;
            margin-top: 3rem;
        }
        .footer-content {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 2rem;
            margin-bottom: 2rem;
        }
        .footer-section h3 {
            color: var(--accent-color);
            margin-bottom: 1.2rem;
            font-size: 1.3rem;
        }
        .footer-links {
            list-style: none;
        }
        .footer-links a {
            color: #ddd;
            text-decoration: none;
            transition: var(--transition);
            display: block;
            padding: 0.3rem 0;
        }
        .footer-links a:hover {
            color: white;
            padding-left: 5px;
        }
        friend-link {
            display: block;
            background: rgba(255,255,255,0.1);
            padding: 1.5rem;
            border-radius: 6px;
            margin-top: 2rem;
        }
        friend-link h3 {
            color: var(--accent-color);
            margin-bottom: 1rem;
        }
        .friend-link-list {
            display: flex;
            flex-wrap: wrap;
            gap: 1rem;
        }
        .friend-link-list a {
            background: rgba(255,255,255,0.15);
            color: white;
            padding: 0.5rem 1rem;
            border-radius: 4px;
            text-decoration: none;
            transition: var(--transition);
        }
        .friend-link-list a:hover {
            background: rgba(255,255,255,0.25);
            transform: translateY(-2px);
        }
        .copyright {
            text-align: center;
            padding-top: 1.5rem;
            border-top: 1px solid rgba(255,255,255,0.1);
            font-size: 0.9rem;
            color: #aaa;
        }
        @media (max-width: 992px) {
            main {
                grid-template-columns: 1fr;
            }
            aside {
                position: static;
            }
        }
        @media (max-width: 768px) {
            .header-content {
                flex-direction: column;
                align-items: flex-start;
                gap: 1rem;
            }
            .hamburger {
                display: block;
                position: absolute;
                right: 20px;
                top: 20px;
            }
            nav {
                width: 100%;
                display: none;
            }
            nav.active {
                display: block;
            }
            nav ul {
                flex-direction: column;
                gap: 0.5rem;
                margin-top: 1rem;
            }
            h1 {
                font-size: 2rem;
            }
            article {
                padding: 1.5rem;
            }
            .footer-content {
                grid-template-columns: 1fr;
            }
        }
        .text-center {
            text-align: center;
        }
        .mb-2 {
            margin-bottom: 2rem;
        }
        .mt-2 {
            margin-top: 2rem;
        }
        .emoji {
            font-size: 1.2em;
            margin-right: 5px;
        }
        .keyword {
            background-color: #e6f3ff;
            padding: 0.2rem 0.4rem;
            border-radius: 3px;
            font-weight: 600;
            color: var(--primary-color);
        }