* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        :root {
            --primary-color: #1a73e8;
            --secondary-color: #34a853;
            --accent-color: #ea4335;
            --text-dark: #202124;
            --text-light: #5f6368;
            --bg-light: #f8f9fa;
            --bg-white: #ffffff;
            --border-color: #dadce0;
            --shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
            --transition: all 0.3s ease;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            line-height: 1.6;
            color: var(--text-dark);
            background-color: var(--bg-light);
            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;
            padding: 12px 24px;
            background-color: var(--primary-color);
            color: white;
            border: none;
            border-radius: 4px;
            cursor: pointer;
            font-weight: 600;
            transition: var(--transition);
        }
        .btn:hover {
            background-color: #0d62d9;
            transform: translateY(-2px);
            box-shadow: var(--shadow);
        }
        header {
            background-color: var(--bg-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: 28px;
            font-weight: 800;
            color: var(--primary-color);
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .logo i {
            color: var(--accent-color);
        }
        .nav-desktop {
            display: flex;
            gap: 30px;
        }
        @media (max-width: 992px) {
            .nav-desktop {
                display: none;
            }
        }
        .nav-desktop a {
            font-weight: 600;
            padding: 8px 0;
            position: relative;
        }
        .nav-desktop a:hover {
            color: var(--primary-color);
        }
        .nav-desktop a::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 0;
            height: 2px;
            background-color: var(--primary-color);
            transition: var(--transition);
        }
        .nav-desktop a:hover::after {
            width: 100%;
        }
        .hamburger {
            display: none;
            flex-direction: column;
            gap: 4px;
            background: none;
            border: none;
            cursor: pointer;
            padding: 10px;
        }
        @media (max-width: 992px) {
            .hamburger {
                display: flex;
            }
        }
        .hamburger span {
            width: 25px;
            height: 3px;
            background-color: var(--text-dark);
            transition: var(--transition);
        }
        .hamburger.active span:nth-child(1) {
            transform: rotate(45deg) translate(5px, 5px);
        }
        .hamburger.active span:nth-child(2) {
            opacity: 0;
        }
        .hamburger.active span:nth-child(3) {
            transform: rotate(-45deg) translate(7px, -6px);
        }
        .nav-mobile {
            position: fixed;
            top: 70px;
            left: 0;
            width: 100%;
            background-color: var(--bg-white);
            box-shadow: var(--shadow);
            padding: 20px;
            transform: translateY(-100%);
            opacity: 0;
            transition: var(--transition);
            z-index: 999;
        }
        .nav-mobile.active {
            transform: translateY(0);
            opacity: 1;
        }
        .nav-mobile ul {
            display: flex;
            flex-direction: column;
            gap: 15px;
        }
        .nav-mobile a {
            display: block;
            padding: 12px 15px;
            font-weight: 600;
            border-radius: 4px;
        }
        .nav-mobile a:hover {
            background-color: var(--bg-light);
            color: var(--primary-color);
        }
        .breadcrumb {
            background-color: var(--bg-white);
            padding: 15px 0;
            border-bottom: 1px solid var(--border-color);
            font-size: 14px;
        }
        .breadcrumb ul {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
        }
        .breadcrumb li:not(:last-child)::after {
            content: '>';
            margin-left: 10px;
            color: var(--text-light);
        }
        .breadcrumb a:hover {
            color: var(--primary-color);
        }
        main {
            padding: 30px 0;
            background-color: var(--bg-white);
            border-radius: 8px;
            box-shadow: var(--shadow);
            margin: 20px auto;
        }
        .content-header {
            text-align: center;
            margin-bottom: 40px;
            padding-bottom: 20px;
            border-bottom: 1px solid var(--border-color);
        }
        h1 {
            font-size: 2.5rem;
            color: var(--text-dark);
            margin-bottom: 15px;
            line-height: 1.2;
        }
        @media (max-width: 768px) {
            h1 {
                font-size: 2rem;
            }
        }
        .article-meta {
            display: flex;
            justify-content: center;
            gap: 20px;
            color: var(--text-light);
            font-size: 14px;
            margin-bottom: 20px;
        }
        .article-meta span {
            display: flex;
            align-items: center;
            gap: 5px;
        }
        .search-container {
            max-width: 600px;
            margin: 0 auto 40px;
        }
        .search-form {
            display: flex;
            box-shadow: var(--shadow);
            border-radius: 50px;
            overflow: hidden;
        }
        .search-input {
            flex: 1;
            padding: 15px 20px;
            border: none;
            font-size: 16px;
        }
        .search-btn {
            background-color: var(--primary-color);
            color: white;
            border: none;
            padding: 0 25px;
            cursor: pointer;
            font-size: 18px;
        }
        .search-btn:hover {
            background-color: #0d62d9;
        }
        .article-content {
            padding: 0 20px;
        }
        .article-section {
            margin-bottom: 50px;
        }
        h2 {
            font-size: 1.8rem;
            color: var(--primary-color);
            margin-bottom: 20px;
            padding-bottom: 10px;
            border-bottom: 2px solid var(--border-color);
        }
        h3 {
            font-size: 1.4rem;
            color: var(--text-dark);
            margin: 25px 0 15px;
        }
        p {
            margin-bottom: 20px;
            text-align: justify;
            line-height: 1.8;
        }
        .highlight {
            background-color: #fff8e1;
            padding: 20px;
            border-left: 4px solid #ffc107;
            margin: 25px 0;
            border-radius: 0 4px 4px 0;
        }
        .stats-box {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 20px;
            margin: 30px 0;
        }
        .stat-card {
            background-color: var(--bg-light);
            padding: 20px;
            border-radius: 8px;
            text-align: center;
            box-shadow: var(--shadow);
            transition: var(--transition);
        }
        .stat-card:hover {
            transform: translateY(-5px);
        }
        .stat-value {
            font-size: 2.5rem;
            font-weight: 700;
            color: var(--primary-color);
            margin-bottom: 10px;
        }
        .stat-label {
            color: var(--text-light);
            font-size: 14px;
            text-transform: uppercase;
            letter-spacing: 1px;
        }
        .image-container {
            margin: 30px 0;
            text-align: center;
        }
        .article-image {
            border-radius: 8px;
            box-shadow: var(--shadow);
            margin: 0 auto 10px;
        }
        .image-caption {
            font-style: italic;
            color: var(--text-light);
            font-size: 14px;
            margin-top: 10px;
        }
        .user-interaction {
            background-color: var(--bg-light);
            padding: 30px;
            border-radius: 8px;
            margin: 50px 0;
        }
        .rating-section {
            text-align: center;
            margin-bottom: 40px;
        }
        .stars {
            display: flex;
            justify-content: center;
            gap: 5px;
            margin: 20px 0;
        }
        .star {
            font-size: 30px;
            color: #ddd;
            cursor: pointer;
            transition: var(--transition);
        }
        .star:hover,
        .star.active {
            color: #ffc107;
        }
        .rating-form,
        .comment-form {
            max-width: 600px;
            margin: 0 auto;
        }
        .form-group {
            margin-bottom: 20px;
        }
        label {
            display: block;
            margin-bottom: 8px;
            font-weight: 600;
        }
        input, textarea, select {
            width: 100%;
            padding: 12px 15px;
            border: 1px solid var(--border-color);
            border-radius: 4px;
            font-family: inherit;
            font-size: 16px;
            transition: var(--transition);
        }
        input:focus, textarea:focus, select:focus {
            outline: none;
            border-color: var(--primary-color);
            box-shadow: 0 0 0 2px rgba(26, 115, 232, 0.2);
        }
        textarea {
            min-height: 150px;
            resize: vertical;
        }
        .internal-links {
            background-color: var(--bg-light);
            padding: 40px 0;
        }
        .web-link {
            margin-bottom: 15px;
        }
        .web-link a {
            color: var(--primary-color);
            font-weight: 600;
        }
        .web-link a:hover {
            text-decoration: underline;
        }
        footer {
            background-color: var(--text-dark);
            color: white;
            padding: 40px 0 20px;
        }
        .footer-content {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 30px;
            margin-bottom: 30px;
        }
        .footer-section h3 {
            color: white;
            font-size: 1.2rem;
            margin-bottom: 20px;
        }
        .footer-links li {
            margin-bottom: 10px;
        }
        .footer-links a:hover {
            color: var(--secondary-color);
        }
        .copyright {
            text-align: center;
            padding-top: 20px;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            font-size: 14px;
            color: rgba(255, 255, 255, 0.7);
        }
        @media (max-width: 768px) {
            .container {
                padding: 0 15px;
            }
            .header-container {
                padding: 12px 0;
            }
            .logo {
                font-size: 24px;
            }
            .article-content {
                padding: 0 10px;
            }
            .user-interaction {
                padding: 20px;
            }
            .stats-box {
                grid-template-columns: 1fr;
            }
        }