* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        :root {
            --primary-color: #0057B8;
            --secondary-color: #FFD700;
            --accent-color: #DC143C;
            --light-color: #F8F9FA;
            --dark-color: #1A1A2E;
            --text-color: #333333;
            --gray-color: #6C757D;
            --border-radius: 8px;
            --box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
            --transition: all 0.3s ease;
        }
        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            line-height: 1.6;
            color: var(--text-color);
            background-color: var(--light-color);
            overflow-x: hidden;
        }
        a {
            text-decoration: none;
            color: inherit;
            transition: var(--transition);
        }
        ul {
            list-style: none;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        .btn {
            display: inline-block;
            background-color: var(--primary-color);
            color: white;
            padding: 12px 24px;
            border-radius: var(--border-radius);
            font-weight: 600;
            border: none;
            cursor: pointer;
            transition: var(--transition);
            font-size: 1rem;
        }
        .btn:hover {
            background-color: #004099;
            transform: translateY(-3px);
            box-shadow: var(--box-shadow);
        }
        .btn-secondary {
            background-color: var(--secondary-color);
            color: var(--dark-color);
        }
        .btn-secondary:hover {
            background-color: #E6C200;
        }
        .section {
            padding: 60px 0;
        }
        .section-title {
            font-size: 2.2rem;
            margin-bottom: 30px;
            color: var(--primary-color);
            position: relative;
            padding-bottom: 15px;
        }
        .section-title::after {
            content: '';
            position: absolute;
            left: 0;
            bottom: 0;
            width: 80px;
            height: 4px;
            background-color: var(--secondary-color);
        }
        .header {
            background-color: var(--dark-color);
            color: white;
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
        }
        .header-container {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 15px 20px;
        }
        .logo {
            font-size: 1.8rem;
            font-weight: 800;
            color: var(--secondary-color);
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .logo i {
            color: var(--primary-color);
        }
        .logo span {
            color: white;
        }
        .nav-desktop {
            display: flex;
            gap: 30px;
        }
        @media (max-width: 768px) {
            .nav-desktop {
                display: none;
            }
        }
        .nav-link {
            font-weight: 600;
            font-size: 1.05rem;
            padding: 8px 0;
            position: relative;
        }
        .nav-link::after {
            content: '';
            position: absolute;
            left: 0;
            bottom: 0;
            width: 0;
            height: 2px;
            background-color: var(--secondary-color);
            transition: var(--transition);
        }
        .nav-link:hover::after,
        .nav-link.active::after {
            width: 100%;
        }
        .nav-link:hover {
            color: var(--secondary-color);
        }
        .hamburger-menu {
            display: none;
            font-size: 1.5rem;
            cursor: pointer;
            color: var(--secondary-color);
        }
        @media (max-width: 768px) {
            .hamburger-menu {
                display: block;
            }
        }
        .nav-mobile {
            position: fixed;
            top: 70px;
            left: 0;
            width: 100%;
            background-color: var(--dark-color);
            padding: 20px;
            transform: translateY(-100%);
            opacity: 0;
            transition: var(--transition);
            z-index: 999;
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
        }
        .nav-mobile.active {
            transform: translateY(0);
            opacity: 1;
        }
        .nav-mobile ul {
            display: flex;
            flex-direction: column;
            gap: 20px;
        }
        .breadcrumb {
            background-color: #f1f1f1;
            padding: 15px 0;
            font-size: 0.9rem;
        }
        .breadcrumb-container {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 8px;
        }
        .breadcrumb-item {
            color: var(--gray-color);
        }
        .breadcrumb-item:not(:last-child)::after {
            content: '/';
            margin-left: 8px;
        }
        .breadcrumb-item:last-child {
            color: var(--primary-color);
            font-weight: 600;
        }
        .breadcrumb-item a:hover {
            color: var(--primary-color);
        }
        .hero {
            background: linear-gradient(135deg, var(--primary-color) 0%, #1A1A2E 100%);
            color: white;
            padding: 80px 0;
            text-align: center;
        }
        .hero h1 {
            font-size: 3rem;
            margin-bottom: 20px;
            line-height: 1.2;
        }
        @media (max-width: 768px) {
            .hero h1 {
                font-size: 2.2rem;
            }
        }
        .hero p {
            font-size: 1.2rem;
            max-width: 800px;
            margin: 0 auto 30px;
            opacity: 0.9;
        }
        .search-section {
            background-color: white;
            padding: 40px 0;
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
        }
        .search-form {
            max-width: 600px;
            margin: 0 auto;
            display: flex;
            box-shadow: var(--box-shadow);
            border-radius: var(--border-radius);
            overflow: hidden;
        }
        .search-input {
            flex: 1;
            padding: 15px 20px;
            border: 2px solid #e0e0e0;
            border-right: none;
            font-size: 1rem;
            border-radius: var(--border-radius) 0 0 var(--border-radius);
        }
        .search-input:focus {
            outline: none;
            border-color: var(--primary-color);
        }
        .search-btn {
            background-color: var(--primary-color);
            color: white;
            border: none;
            padding: 0 25px;
            cursor: pointer;
            font-size: 1.1rem;
            transition: var(--transition);
        }
        .search-btn:hover {
            background-color: #004099;
        }
        .main-content {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 40px;
            padding: 40px 0;
        }
        @media (max-width: 992px) {
            .main-content {
                grid-template-columns: 1fr;
            }
        }
        .article-content {
            background-color: white;
            padding: 40px;
            border-radius: var(--border-radius);
            box-shadow: var(--box-shadow);
        }
        .article-image {
            margin: 30px 0;
            border-radius: var(--border-radius);
            overflow: hidden;
            box-shadow: var(--box-shadow);
        }
        .article-image img {
            width: 100%;
            transition: var(--transition);
        }
        .article-image:hover img {
            transform: scale(1.03);
        }
        .article-image figcaption {
            padding: 15px;
            background-color: #f8f9fa;
            font-style: italic;
            color: var(--gray-color);
            font-size: 0.9rem;
        }
        .content-section {
            margin-bottom: 50px;
        }
        .content-section h2 {
            font-size: 1.8rem;
            color: var(--primary-color);
            margin-bottom: 20px;
            padding-bottom: 10px;
            border-bottom: 2px solid #f0f0f0;
        }
        .content-section h3 {
            font-size: 1.4rem;
            color: var(--dark-color);
            margin: 25px 0 15px;
        }
        .content-section p {
            margin-bottom: 20px;
            font-size: 1.05rem;
            line-height: 1.8;
        }
        .content-section ul, 
        .content-section ol {
            margin-bottom: 20px;
            padding-left: 20px;
        }
        .content-section li {
            margin-bottom: 10px;
            line-height: 1.7;
        }
        .highlight-box {
            background-color: #f8f9fa;
            border-left: 4px solid var(--secondary-color);
            padding: 25px;
            margin: 30px 0;
            border-radius: 0 var(--border-radius) var(--border-radius) 0;
        }
        .highlight-box h4 {
            color: var(--primary-color);
            margin-bottom: 15px;
            font-size: 1.3rem;
        }
        .key-point {
            background-color: #fff9e6;
            padding: 15px;
            border-radius: var(--border-radius);
            margin: 20px 0;
            border: 1px solid #ffe066;
        }
        .key-point i {
            color: var(--secondary-color);
            margin-right: 10px;
        }
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 20px;
            margin: 30px 0;
        }
        .stat-card {
            background-color: #f8f9fa;
            padding: 25px;
            border-radius: var(--border-radius);
            text-align: center;
            border-top: 4px solid var(--primary-color);
            transition: var(--transition);
        }
        .stat-card:hover {
            transform: translateY(-5px);
            box-shadow: var(--box-shadow);
        }
        .stat-card .stat-value {
            font-size: 2.5rem;
            font-weight: 700;
            color: var(--primary-color);
            margin-bottom: 10px;
        }
        .stat-card .stat-label {
            font-size: 1rem;
            color: var(--gray-color);
        }
        .sidebar {
            display: flex;
            flex-direction: column;
            gap: 30px;
        }
        .sidebar-widget {
            background-color: white;
            padding: 25px;
            border-radius: var(--border-radius);
            box-shadow: var(--box-shadow);
        }
        .sidebar-widget h3 {
            font-size: 1.3rem;
            color: var(--primary-color);
            margin-bottom: 20px;
            padding-bottom: 10px;
            border-bottom: 2px solid #f0f0f0;
        }
        .rating-widget {
            text-align: center;
        }
        .rating-stars {
            display: flex;
            justify-content: center;
            gap: 5px;
            margin-bottom: 15px;
            font-size: 1.5rem;
        }
        .rating-stars i {
            color: #FFD700;
            cursor: pointer;
            transition: var(--transition);
        }
        .rating-stars i:hover {
            transform: scale(1.2);
        }
        .rating-value {
            font-size: 2rem;
            font-weight: 700;
            color: var(--primary-color);
            margin-bottom: 5px;
        }
        .rating-count {
            color: var(--gray-color);
            font-size: 0.9rem;
            margin-bottom: 20px;
        }
        .user-rating {
            display: flex;
            flex-direction: column;
            gap: 10px;
        }
        .user-rating select {
            padding: 10px;
            border-radius: var(--border-radius);
            border: 1px solid #ddd;
        }
        .comment-form textarea,
        .rating-form textarea {
            width: 100%;
            padding: 15px;
            border-radius: var(--border-radius);
            border: 1px solid #ddd;
            font-family: inherit;
            font-size: 1rem;
            margin-bottom: 15px;
            resize: vertical;
            min-height: 120px;
        }
        .comment-form textarea:focus,
        .rating-form textarea:focus {
            outline: none;
            border-color: var(--primary-color);
        }
        .comment-list {
            display: flex;
            flex-direction: column;
            gap: 20px;
            max-height: 400px;
            overflow-y: auto;
            padding-right: 10px;
        }
        .comment-item {
            padding: 15px;
            background-color: #f8f9fa;
            border-radius: var(--border-radius);
            border-left: 3px solid var(--primary-color);
        }
        .comment-header {
            display: flex;
            justify-content: space-between;
            margin-bottom: 10px;
            font-size: 0.9rem;
        }
        .comment-author {
            font-weight: 600;
            color: var(--primary-color);
        }
        .comment-date {
            color: var(--gray-color);
        }
        .comment-body {
            line-height: 1.6;
        }
        .footer {
            background-color: var(--dark-color);
            color: white;
            padding: 60px 0 30px;
        }
        .footer-container {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 40px;
            margin-bottom: 40px;
        }
        .footer-section h3 {
            font-size: 1.3rem;
            margin-bottom: 25px;
            color: var(--secondary-color);
            position: relative;
            padding-bottom: 10px;
        }
        .footer-section h3::after {
            content: '';
            position: absolute;
            left: 0;
            bottom: 0;
            width: 50px;
            height: 2px;
            background-color: var(--primary-color);
        }
        .footer-links {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .footer-links a {
            color: #b0b0b0;
        }
        .footer-links a:hover {
            color: var(--secondary-color);
            padding-left: 5px;
        }
        .friend-links {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            margin-top: 15px;
        }
        .friend-link {
            background-color: rgba(255, 255, 255, 0.1);
            padding: 8px 15px;
            border-radius: 20px;
            font-size: 0.9rem;
            transition: var(--transition);
        }
        .friend-link:hover {
            background-color: var(--primary-color);
            transform: translateY(-3px);
        }
        .copyright {
            text-align: center;
            padding-top: 30px;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            color: #b0b0b0;
            font-size: 0.9rem;
        }
        .copyright a {
            color: var(--secondary-color);
        }
        .text-center {
            text-align: center;
        }
        .text-bold {
            font-weight: 700;
        }
        .text-highlight {
            color: var(--accent-color);
            font-weight: 600;
        }
        .text-primary {
            color: var(--primary-color);
        }
        .mb-30 {
            margin-bottom: 30px;
        }
        .mt-30 {
            margin-top: 30px;
        }
        .emoji {
            font-size: 1.2em;
            margin-right: 5px;
        }
        @media (max-width: 768px) {
            .section {
                padding: 40px 0;
            }
            .section-title {
                font-size: 1.8rem;
            }
            .article-content {
                padding: 25px;
            }
            .hero {
                padding: 60px 0;
            }
            .footer-container {
                grid-template-columns: 1fr;
                gap: 30px;
            }
        }