* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
        }
        :root {
            --primary: #2A5CAA;
            --secondary: #FF9800;
            --accent: #4CAF50;
            --dark: #1a1a2e;
            --light: #f8f9fa;
            --gray: #6c757d;
            --shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
            --transition: all 0.3s ease;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            background-color: #fff;
            color: #333;
            line-height: 1.7;
            overflow-x: hidden;
        }
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        header {
            background-color: var(--dark);
            color: white;
            box-shadow: var(--shadow);
            position: sticky;
            top: 0;
            z-index: 1000;
        }
        .header-top {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 15px 0;
        }
        .logo a {
            font-size: 1.8rem;
            font-weight: 800;
            color: white;
            text-decoration: none;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .logo span {
            color: var(--secondary);
        }
        .search-box {
            display: flex;
            width: 300px;
        }
        .search-box input {
            flex: 1;
            padding: 10px 15px;
            border: none;
            border-radius: 4px 0 0 4px;
            font-size: 0.95rem;
        }
        .search-box button {
            background-color: var(--secondary);
            color: white;
            border: none;
            padding: 0 20px;
            border-radius: 0 4px 4px 0;
            cursor: pointer;
            transition: var(--transition);
        }
        .search-box button:hover {
            background-color: #e68900;
        }
        .hamburger {
            display: none;
            background: none;
            border: none;
            color: white;
            font-size: 1.8rem;
            cursor: pointer;
        }
        nav ul {
            display: flex;
            list-style: none;
            background-color: #16213e;
            padding: 0;
            margin: 0;
        }
        nav li {
            flex: 1;
            text-align: center;
        }
        nav a {
            color: white;
            text-decoration: none;
            padding: 15px 20px;
            display: block;
            transition: var(--transition);
            font-weight: 500;
            border-bottom: 3px solid transparent;
        }
        nav a:hover, nav a.active {
            background-color: rgba(255, 255, 255, 0.05);
            border-bottom-color: var(--secondary);
        }
        .breadcrumb {
            padding: 12px 0;
            background-color: #f1f5f9;
            font-size: 0.9rem;
            color: var(--gray);
        }
        .breadcrumb a {
            color: var(--primary);
            text-decoration: none;
        }
        .breadcrumb a:hover {
            text-decoration: underline;
        }
        .breadcrumb i {
            margin: 0 8px;
            font-size: 0.8rem;
        }
        main {
            padding: 40px 0;
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 40px;
        }
        article {
            background: white;
            border-radius: 8px;
            overflow: hidden;
        }
        .article-header {
            padding: 30px;
            background: linear-gradient(135deg, var(--primary), #1a3a7a);
            color: white;
            margin-bottom: 30px;
        }
        .article-header h1 {
            font-size: 2.8rem;
            margin-bottom: 15px;
            line-height: 1.2;
        }
        .meta {
            display: flex;
            gap: 20px;
            font-size: 0.9rem;
            opacity: 0.9;
            margin-top: 20px;
        }
        .content {
            padding: 0 30px 30px;
        }
        .content > * {
            margin-bottom: 1.8rem;
        }
        h2 {
            color: var(--primary);
            font-size: 2rem;
            margin-top: 2.5rem;
            margin-bottom: 1rem;
            padding-bottom: 10px;
            border-bottom: 2px solid #eee;
        }
        h3 {
            color: var(--dark);
            font-size: 1.6rem;
            margin-top: 2rem;
            margin-bottom: 1rem;
        }
        h4 {
            color: #555;
            font-size: 1.3rem;
            margin-top: 1.5rem;
            margin-bottom: 0.8rem;
        }
        p {
            font-size: 1.1rem;
            margin-bottom: 1.5rem;
            text-align: justify;
        }
        strong {
            color: var(--dark);
            font-weight: 700;
        }
        em {
            color: var(--gray);
        }
        a.content-link {
            color: var(--primary);
            text-decoration: none;
            border-bottom: 1px dashed var(--primary);
            transition: var(--transition);
        }
        a.content-link:hover {
            color: var(--secondary);
            border-bottom-style: solid;
        }
        .highlight-box {
            background-color: #f0f7ff;
            border-left: 5px solid var(--primary);
            padding: 25px;
            margin: 30px 0;
            border-radius: 0 8px 8px 0;
        }
        .highlight-box p:last-child {
            margin-bottom: 0;
        }
        .image-wrapper {
            margin: 30px 0;
            text-align: center;
        }
        .image-wrapper img {
            max-width: 100%;
            height: auto;
            border-radius: 8px;
            box-shadow: var(--shadow);
        }
        .image-caption {
            font-size: 0.95rem;
            color: var(--gray);
            margin-top: 10px;
            font-style: italic;
        }
        ul, ol {
            padding-left: 30px;
            margin-bottom: 1.8rem;
        }
        li {
            margin-bottom: 0.8rem;
        }
        aside {
            background: white;
            border-radius: 8px;
            padding: 25px;
            box-shadow: var(--shadow);
            align-self: start;
            position: sticky;
            top: 100px;
        }
        .widget {
            margin-bottom: 30px;
        }
        .widget h3 {
            font-size: 1.4rem;
            margin-bottom: 20px;
            color: var(--primary);
            padding-bottom: 10px;
            border-bottom: 1px solid #eee;
        }
        .rating-widget, .comment-widget {
            background: #f8f9fa;
            padding: 20px;
            border-radius: 8px;
        }
        .stars {
            display: flex;
            justify-content: center;
            gap: 5px;
            margin: 15px 0;
            font-size: 1.8rem;
            color: #ffc107;
        }
        .stars i {
            cursor: pointer;
            transition: var(--transition);
        }
        .stars i:hover {
            transform: scale(1.2);
        }
        .rating-form input, .comment-form input,
        .rating-form textarea, .comment-form textarea {
            width: 100%;
            padding: 12px;
            margin-bottom: 15px;
            border: 1px solid #ddd;
            border-radius: 4px;
            font-size: 1rem;
        }
        .rating-form button, .comment-form button {
            background-color: var(--accent);
            color: white;
            border: none;
            padding: 12px 25px;
            border-radius: 4px;
            cursor: pointer;
            font-weight: 600;
            width: 100%;
            transition: var(--transition);
        }
        .rating-form button:hover, .comment-form button:hover {
            background-color: #3d8b40;
        }
        .related-links ul {
            list-style: none;
            padding-left: 0;
        }
        .related-links li {
            margin-bottom: 12px;
        }
        .related-links a {
            color: var(--dark);
            text-decoration: none;
            display: block;
            padding: 10px 15px;
            background-color: #f8f9fa;
            border-radius: 4px;
            transition: var(--transition);
            border-left: 3px solid transparent;
        }
        .related-links a:hover {
            background-color: #e9ecef;
            border-left-color: var(--secondary);
            padding-left: 20px;
        }
        footer {
            background-color: var(--dark);
            color: #ccc;
            padding: 50px 0 20px;
        }
        .footer-content {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 40px;
            margin-bottom: 40px;
        }
        .footer-col h4 {
            color: white;
            font-size: 1.2rem;
            margin-bottom: 20px;
            position: relative;
            padding-bottom: 10px;
        }
        .footer-col h4::after {
            content: '';
            position: absolute;
            left: 0;
            bottom: 0;
            width: 40px;
            height: 3px;
            background-color: var(--secondary);
        }
        .footer-col ul {
            list-style: none;
            padding-left: 0;
        }
        .footer-col li {
            margin-bottom: 12px;
        }
        .footer-col a {
            color: #aaa;
            text-decoration: none;
            transition: var(--transition);
        }
        .footer-col a:hover {
            color: var(--secondary);
            padding-left: 5px;
        }
        friend-link {
            display: block;
            background-color: #16213e;
            padding: 15px;
            border-radius: 6px;
            margin-top: 10px;
        }
        friend-link a {
            color: var(--secondary) !important;
            font-weight: 600;
        }
        .copyright {
            text-align: center;
            padding-top: 20px;
            border-top: 1px solid #2d3748;
            font-size: 0.9rem;
            color: #888;
        }
        @media (max-width: 992px) {
            main {
                grid-template-columns: 1fr;
            }
            .footer-content {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (max-width: 768px) {
            .header-top {
                flex-wrap: wrap;
            }
            .search-box {
                order: 3;
                width: 100%;
                margin-top: 15px;
            }
            .hamburger {
                display: block;
            }
            nav ul {
                display: none;
                flex-direction: column;
            }
            nav ul.active {
                display: flex;
            }
            nav li {
                text-align: left;
            }
            .article-header h1 {
                font-size: 2.2rem;
            }
            h2 {
                font-size: 1.8rem;
            }
            h3 {
                font-size: 1.5rem;
            }
        }
        @media (max-width: 576px) {
            .footer-content {
                grid-template-columns: 1fr;
            }
            .meta {
                flex-direction: column;
                gap: 5px;
            }
        }
        a, button {
            transition: var(--transition);
        }
        .pulse {
            animation: pulse 2s infinite;
        }
        @keyframes pulse {
            0% { opacity: 1; }
            50% { opacity: 0.7; }
            100% { opacity: 1; }
        }
        .fade-in {
            animation: fadeIn 1s ease-out;
        }
        @keyframes fadeIn {
            from { opacity: 0; transform: translateY(20px); }
            to { opacity: 1; transform: translateY(0); }
        }