* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
        }
        :root {
            --primary: #4a6fa5; 
            --secondary: #ff8c42; 
            --accent: #6b4e71; 
            --light: #f8f9fa;
            --dark: #2d3047;
            --gray: #6c757d;
            --success: #38b000;
            --shadow: 0 4px 12px rgba(0,0,0,0.08);
            --radius: 8px;
            --transition: all 0.3s ease;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            background-color: #fff;
            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: linear-gradient(135deg, var(--dark), var(--primary));
            color: white;
            padding: 1rem 0;
            box-shadow: var(--shadow);
            position: sticky;
            top: 0;
            z-index: 1000;
        }
        .header-container {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .logo a {
            color: white;
            font-size: 2rem;
            font-weight: 800;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .logo i {
            color: var(--secondary);
        }
        .nav-desktop {
            display: flex;
            gap: 2rem;
        }
        @media (max-width: 768px) {
            .nav-desktop {
                display: none;
            }
        }
        .nav-desktop a {
            color: white;
            font-weight: 600;
            padding: 0.5rem 0;
            border-bottom: 2px solid transparent;
        }
        .nav-desktop a:hover,
        .nav-desktop a.active {
            border-bottom-color: var(--secondary);
            color: var(--secondary);
        }
        .hamburger {
            display: none;
            background: none;
            border: none;
            color: white;
            font-size: 1.8rem;
            cursor: pointer;
            padding: 5px;
        }
        @media (max-width: 768px) {
            .hamburger {
                display: block;
            }
        }
        .nav-mobile {
            display: none;
            flex-direction: column;
            background-color: var(--dark);
            position: absolute;
            top: 100%;
            left: 0;
            width: 100%;
            padding: 1rem;
            box-shadow: var(--shadow);
            z-index: 999;
        }
        .nav-mobile.active {
            display: flex;
        }
        .nav-mobile a {
            color: white;
            padding: 0.8rem 1rem;
            border-bottom: 1px solid rgba(255,255,255,0.1);
        }
        .nav-mobile a:hover {
            background-color: var(--primary);
            padding-left: 1.5rem;
        }
        .breadcrumb {
            background-color: var(--light);
            padding: 1rem 0;
            font-size: 0.9rem;
            margin-bottom: 2rem;
            border-bottom: 1px solid #eee;
        }
        .breadcrumb ol {
            display: flex;
            flex-wrap: wrap;
            list-style: none;
        }
        .breadcrumb li:not(:last-child)::after {
            content: ">";
            margin: 0 10px;
            color: var(--gray);
        }
        .breadcrumb a {
            color: var(--gray);
        }
        .breadcrumb a:hover {
            color: var(--primary);
        }
        main {
            flex: 1;
            padding: 2rem 0;
        }
        .article-header {
            text-align: center;
            margin-bottom: 3rem;
            padding-bottom: 2rem;
            border-bottom: 2px dashed var(--primary);
        }
        .article-header h1 {
            font-size: 2.8rem;
            color: var(--dark);
            margin-bottom: 1rem;
            line-height: 1.2;
        }
        @media (max-width: 768px) {
            .article-header h1 {
                font-size: 2.2rem;
            }
        }
        .article-meta {
            display: flex;
            justify-content: center;
            gap: 2rem;
            color: var(--gray);
            font-size: 0.95rem;
        }
        .article-meta span i {
            margin-right: 5px;
            color: var(--secondary);
        }
        .content-grid {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 3rem;
        }
        @media (max-width: 992px) {
            .content-grid {
                grid-template-columns: 1fr;
            }
        }
        .article-content {
            font-size: 1.1rem;
        }
        .article-content h2 {
            font-size: 2rem;
            color: var(--primary);
            margin: 2.5rem 0 1.2rem;
            padding-bottom: 0.5rem;
            border-bottom: 1px solid #eee;
        }
        .article-content h3 {
            font-size: 1.6rem;
            color: var(--accent);
            margin: 2rem 0 1rem;
        }
        .article-content p {
            margin-bottom: 1.5rem;
            text-align: justify;
        }
        .article-content blockquote {
            border-left: 4px solid var(--secondary);
            padding-left: 1.5rem;
            margin: 2rem 0;
            font-style: italic;
            color: var(--dark);
            background-color: rgba(255, 140, 66, 0.05);
            padding: 1.5rem;
            border-radius: 0 var(--radius) var(--radius) 0;
        }
        .article-content ul, .article-content ol {
            margin-left: 2rem;
            margin-bottom: 1.5rem;
        }
        .article-content li {
            margin-bottom: 0.5rem;
        }
        .highlight-box {
            background: linear-gradient(to right, #f8f9fa, #e9ecef);
            border-left: 5px solid var(--success);
            padding: 1.5rem;
            margin: 2rem 0;
            border-radius: 0 var(--radius) var(--radius) 0;
        }
        .highlight-box h4 {
            color: var(--success);
            margin-bottom: 0.5rem;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .feature-img {
            width: 100%;
            border-radius: var(--radius);
            margin: 2rem 0;
            box-shadow: var(--shadow);
        }
        .interactive-btn {
            display: inline-block;
            background-color: var(--primary);
            color: white;
            padding: 0.8rem 1.8rem;
            border-radius: 50px;
            font-weight: 600;
            border: none;
            cursor: pointer;
            transition: var(--transition);
            margin: 1rem 0;
        }
        .interactive-btn:hover {
            background-color: var(--secondary);
            transform: translateY(-3px);
            box-shadow: 0 6px 15px rgba(255, 140, 66, 0.3);
        }
        .sidebar {
            background-color: var(--light);
            padding: 1.5rem;
            border-radius: var(--radius);
            align-self: start;
            position: sticky;
            top: 120px;
            box-shadow: var(--shadow);
        }
        .sidebar-widget {
            margin-bottom: 2rem;
        }
        .sidebar-widget h3 {
            color: var(--dark);
            margin-bottom: 1rem;
            padding-bottom: 0.5rem;
            border-bottom: 2px solid var(--secondary);
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .search-form {
            display: flex;
        }
        .search-form input {
            flex: 1;
            padding: 0.8rem 1rem;
            border: 1px solid #ccc;
            border-right: none;
            border-radius: var(--radius) 0 0 var(--radius);
            font-size: 1rem;
        }
        .search-form button {
            background-color: var(--primary);
            color: white;
            border: none;
            padding: 0 1.2rem;
            border-radius: 0 var(--radius) var(--radius) 0;
            cursor: pointer;
            transition: var(--transition);
        }
        .search-form button:hover {
            background-color: var(--secondary);
        }
        .rating-widget form {
            display: flex;
            flex-direction: column;
            gap: 1rem;
        }
        .stars {
            display: flex;
            gap: 5px;
            font-size: 1.8rem;
            color: #ddd;
            cursor: pointer;
        }
        .stars span:hover,
        .stars span:hover ~ span {
            color: #ffc107;
        }
        .rating-widget input, .rating-widget textarea, .comment-form input, .comment-form textarea {
            width: 100%;
            padding: 0.8rem;
            border: 1px solid #ccc;
            border-radius: var(--radius);
            font-size: 1rem;
        }
        .rating-widget button, .comment-form button {
            background-color: var(--secondary);
            color: white;
            border: none;
            padding: 0.8rem;
            border-radius: var(--radius);
            font-weight: 600;
            cursor: pointer;
            transition: var(--transition);
        }
        .rating-widget button:hover, .comment-form button:hover {
            background-color: var(--primary);
        }
        .comment-section {
            margin-top: 4rem;
            padding-top: 2rem;
            border-top: 2px solid #eee;
        }
        .comment-form {
            background-color: var(--light);
            padding: 2rem;
            border-radius: var(--radius);
            margin-bottom: 3rem;
        }
        .form-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 1rem;
            margin-bottom: 1rem;
        }
        @media (max-width: 768px) {
            .form-grid {
                grid-template-columns: 1fr;
            }
        }
        .comment-list .comment {
            background-color: #f9f9f9;
            padding: 1.5rem;
            border-radius: var(--radius);
            margin-bottom: 1.5rem;
            border-left: 4px solid var(--primary);
        }
        .comment-header {
            display: flex;
            justify-content: space-between;
            margin-bottom: 0.8rem;
            font-size: 0.9rem;
            color: var(--gray);
        }
        .comment-author {
            font-weight: bold;
            color: var(--dark);
        }
        .footer-links {
            background-color: #f1f5f9;
            padding: 3rem 0;
            margin-top: 4rem;
        }
        .web-link {
            display: inline-block;
            margin: 0.5rem 1rem 0.5rem 0;
            padding: 0.6rem 1.2rem;
            background-color: white;
            border-radius: 50px;
            box-shadow: 0 2px 5px rgba(0,0,0,0.05);
            transition: var(--transition);
        }
        .web-link:hover {
            background-color: var(--primary);
            color: white;
        }
        .web-link:hover a {
            color: white;
        }
        .site-footer {
            background-color: var(--dark);
            color: #ccc;
            padding: 3rem 0 1.5rem;
            text-align: center;
        }
        .footer-container {
            display: flex;
            flex-direction: column;
            align-items: center;
        }
        .footer-logo {
            color: white;
            font-size: 1.8rem;
            font-weight: 700;
            margin-bottom: 1.5rem;
        }
        .copyright {
            margin-top: 2rem;
            padding-top: 1.5rem;
            border-top: 1px solid rgba(255,255,255,0.1);
            width: 100%;
            font-size: 0.9rem;
            color: #aaa;
        }
        .text-bold {
            font-weight: 700;
            color: var(--dark);
        }
        .emoji {
            font-size: 1.2em;
            margin-right: 5px;
        }
        .text-center {
            text-align: center;
        }
        .mb-2 { margin-bottom: 2rem; }
        .mb-3 { margin-bottom: 3rem; }
        .mt-2 { margin-top: 2rem; }
        .mt-3 { margin-top: 3rem; }