* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Segoe UI', 'Nirmala UI', sans-serif;
        }
        :root {
            --primary-color: #d32f2f;
            --secondary-color: #388e3c;
            --dark-color: #1a1a1a;
            --light-color: #f5f5f5;
            --accent-color: #ff9800;
            --text-color: #333333;
            --shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
            --transition: all 0.3s ease;
        }
        body {
            background-color: #f9f9f9;
            color: var(--text-color);
            line-height: 1.7;
        }
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        header {
            background-color: var(--dark-color);
            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;
        }
        .logo {
            font-size: 1.8rem;
            font-weight: 800;
            color: white;
            text-decoration: none;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .logo span {
            color: var(--accent-color);
        }
        .logo i {
            color: var(--primary-color);
        }
        .nav-desktop {
            display: flex;
            gap: 25px;
        }
        @media (max-width: 768px) {
            .nav-desktop {
                display: none;
            }
        }
        .nav-link {
            color: white;
            text-decoration: none;
            font-weight: 600;
            padding: 8px 0;
            position: relative;
            transition: var(--transition);
        }
        .nav-link:hover {
            color: var(--accent-color);
        }
        .nav-link::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 0;
            height: 2px;
            background-color: var(--accent-color);
            transition: var(--transition);
        }
        .nav-link:hover::after {
            width: 100%;
        }
        .hamburger {
            display: none;
            background: none;
            border: none;
            color: white;
            font-size: 1.5rem;
            cursor: pointer;
        }
        @media (max-width: 768px) {
            .hamburger {
                display: block;
            }
        }
        .nav-mobile {
            display: none;
            flex-direction: column;
            background-color: var(--dark-color);
            padding: 20px;
            position: absolute;
            top: 100%;
            left: 0;
            right: 0;
            box-shadow: var(--shadow);
        }
        .nav-mobile.active {
            display: flex;
        }
        .nav-mobile .nav-link {
            padding: 12px 0;
            border-bottom: 1px solid rgba(255, 255, 255, 0.1);
        }
        .breadcrumb {
            background-color: #f0f0f0;
            padding: 15px 0;
            margin-bottom: 30px;
        }
        .breadcrumb-list {
            display: flex;
            list-style: none;
            gap: 10px;
            flex-wrap: wrap;
        }
        .breadcrumb-item {
            font-size: 0.9rem;
        }
        .breadcrumb-item a {
            color: var(--primary-color);
            text-decoration: none;
        }
        .breadcrumb-item i {
            margin: 0 5px;
            color: #888;
        }
        main {
            padding: 40px 0;
        }
        .article-container {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 40px;
        }
        @media (max-width: 992px) {
            .article-container {
                grid-template-columns: 1fr;
            }
        }
        .article-content {
            background-color: white;
            padding: 40px;
            border-radius: 10px;
            box-shadow: var(--shadow);
        }
        .article-header {
            margin-bottom: 30px;
            border-bottom: 3px solid var(--primary-color);
            padding-bottom: 20px;
        }
        h1 {
            font-size: 2.5rem;
            color: var(--dark-color);
            margin-bottom: 15px;
            line-height: 1.3;
        }
        @media (max-width: 768px) {
            h1 {
                font-size: 2rem;
            }
        }
        .article-meta {
            display: flex;
            gap: 20px;
            color: #666;
            font-size: 0.9rem;
        }
        h2 {
            font-size: 1.8rem;
            color: var(--secondary-color);
            margin: 40px 0 20px;
            padding-bottom: 10px;
            border-bottom: 2px solid #eee;
        }
        h3 {
            font-size: 1.4rem;
            color: var(--primary-color);
            margin: 30px 0 15px;
        }
        p {
            margin-bottom: 20px;
            text-align: justify;
            font-size: 1.1rem;
        }
        .highlight {
            background-color: #fff9e6;
            border-left: 4px solid var(--accent-color);
            padding: 20px;
            margin: 25px 0;
            border-radius: 0 5px 5px 0;
        }
        .tip-box {
            background-color: #e8f5e9;
            border: 1px solid var(--secondary-color);
            padding: 20px;
            border-radius: 8px;
            margin: 25px 0;
        }
        .tip-title {
            color: var(--secondary-color);
            font-weight: 700;
            margin-bottom: 10px;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .image-container {
            margin: 30px 0;
            text-align: center;
        }
        .article-image {
            max-width: 100%;
            height: auto;
            border-radius: 8px;
            box-shadow: var(--shadow);
            transition: var(--transition);
        }
        .article-image:hover {
            transform: scale(1.02);
        }
        .image-caption {
            font-style: italic;
            color: #666;
            margin-top: 10px;
            font-size: 0.9rem;
        }
        .emoji {
            font-size: 1.2em;
            margin: 0 3px;
        }
        .sidebar {
            background-color: white;
            padding: 25px;
            border-radius: 10px;
            box-shadow: var(--shadow);
            height: fit-content;
            position: sticky;
            top: 100px;
        }
        @media (max-width: 992px) {
            .sidebar {
                position: static;
            }
        }
        .widget {
            margin-bottom: 30px;
        }
        .widget-title {
            color: var(--primary-color);
            font-size: 1.2rem;
            margin-bottom: 15px;
            padding-bottom: 10px;
            border-bottom: 2px solid #eee;
        }
        .search-form {
            display: flex;
            margin-bottom: 20px;
        }
        .search-input {
            flex: 1;
            padding: 12px 15px;
            border: 2px solid #ddd;
            border-radius: 5px 0 0 5px;
            font-size: 1rem;
        }
        .search-btn {
            background-color: var(--primary-color);
            color: white;
            border: none;
            padding: 0 20px;
            border-radius: 0 5px 5px 0;
            cursor: pointer;
            transition: var(--transition);
        }
        .search-btn:hover {
            background-color: #b71c1c;
        }
        .rating-form {
            display: flex;
            flex-direction: column;
            gap: 15px;
        }
        .rating-stars {
            display: flex;
            gap: 5px;
            direction: ltr;
        }
        .rating-star {
            font-size: 1.5rem;
            color: #ddd;
            cursor: pointer;
            transition: var(--transition);
        }
        .rating-star:hover,
        .rating-star.active {
            color: #ffc107;
        }
        .form-group {
            display: flex;
            flex-direction: column;
            gap: 8px;
        }
        .form-label {
            font-weight: 600;
        }
        .form-input, .form-textarea {
            padding: 12px;
            border: 1px solid #ddd;
            border-radius: 5px;
            font-size: 1rem;
            font-family: inherit;
        }
        .form-textarea {
            min-height: 100px;
            resize: vertical;
        }
        .submit-btn {
            background-color: var(--secondary-color);
            color: white;
            border: none;
            padding: 12px;
            border-radius: 5px;
            font-weight: 600;
            cursor: pointer;
            transition: var(--transition);
        }
        .submit-btn:hover {
            background-color: #2e7d32;
        }
        .comments-section {
            margin-top: 50px;
            background-color: white;
            padding: 30px;
            border-radius: 10px;
            box-shadow: var(--shadow);
        }
        .comment {
            padding: 20px;
            border-bottom: 1px solid #eee;
            margin-bottom: 20px;
        }
        .comment:last-child {
            border-bottom: none;
        }
        .comment-header {
            display: flex;
            justify-content: space-between;
            margin-bottom: 10px;
        }
        .comment-author {
            font-weight: 700;
            color: var(--primary-color);
        }
        .comment-date {
            color: #888;
            font-size: 0.9rem;
        }
        .web-links {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 15px;
            margin: 40px 0;
        }
        @media (max-width: 768px) {
            .web-links {
                grid-template-columns: 1fr;
            }
        }
        .web-link {
            background-color: #f0f7ff;
            padding: 15px;
            border-radius: 8px;
            border-left: 4px solid var(--primary-color);
        }
        .web-link a {
            color: var(--primary-color);
            text-decoration: none;
            font-weight: 600;
            transition: var(--transition);
            display: block;
        }
        .web-link a:hover {
            color: #b71c1c;
            text-decoration: underline;
        }
        footer {
            background-color: var(--dark-color);
            color: white;
            padding: 50px 0 20px;
            margin-top: 60px;
        }
        .footer-container {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 40px;
        }
        @media (max-width: 992px) {
            .footer-container {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (max-width: 576px) {
            .footer-container {
                grid-template-columns: 1fr;
            }
        }
        .footer-column h3 {
            color: white;
            font-size: 1.2rem;
            margin-bottom: 20px;
        }
        .footer-links {
            list-style: none;
        }
        .footer-links li {
            margin-bottom: 12px;
        }
        .footer-links a {
            color: #ccc;
            text-decoration: none;
            transition: var(--transition);
        }
        .footer-links a:hover {
            color: white;
            padding-left: 5px;
        }
        .copyright {
            text-align: center;
            padding-top: 30px;
            margin-top: 30px;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            color: #aaa;
            font-size: 0.9rem;
        }
        .bold {
            font-weight: 800;
            color: var(--primary-color);
        }
        .text-center {
            text-align: center;
        }
        .mb-30 {
            margin-bottom: 30px;
        }
        .mt-30 {
            margin-top: 30px;
        }
        .flex {
            display: flex;
        }
        .gap-10 {
            gap: 10px;
        }
        .gap-20 {
            gap: 20px;
        }
        .space-break {
            height: 30px;
        }
        .interactive-card {
            background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
            padding: 25px;
            border-radius: 10px;
            margin: 25px 0;
            transition: var(--transition);
            cursor: pointer;
        }
        .interactive-card:hover {
            transform: translateY(-5px);
            box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
        }
        .responsive-table {
            width: 100%;
            overflow-x: auto;
            margin: 25px 0;
        }
        table {
            width: 100%;
            border-collapse: collapse;
            min-width: 600px;
        }
        th, td {
            padding: 15px;
            text-align: left;
            border-bottom: 1px solid #ddd;
        }
        th {
            background-color: var(--primary-color);
            color: white;
        }
        tr:hover {
            background-color: #f5f5f5;
        }
        @media print {
            .sidebar, .comments-section, .web-links, footer, .search-form, .rating-form {
                display: none;
            }
            .article-content {
                box-shadow: none;
                padding: 0;
            }
        }