* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
        }
        :root {
            --primary: #2C3E50;
            --secondary: #E74C3C;
            --accent: #3498DB;
            --light: #ECF0F1;
            --dark: #1A2530;
            --success: #27AE60;
            --warning: #F39C12;
            --shadow: rgba(0, 0, 0, 0.08);
            --transition: all 0.3s ease;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            background-color: #f8f9fa;
            color: #333;
            line-height: 1.7;
            overflow-x: hidden;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        header {
            background: linear-gradient(135deg, var(--primary), var(--dark));
            color: white;
            padding: 1.2rem 0;
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: 0 4px 12px var(--shadow);
        }
        .header-container {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .logo {
            font-size: 2rem;
            font-weight: 800;
            text-decoration: none;
            color: white;
            display: flex;
            align-items: center;
            gap: 10px;
            letter-spacing: 1px;
        }
        .logo i {
            color: var(--accent);
        }
        .logo span {
            background: linear-gradient(to right, var(--accent), var(--secondary));
            -webkit-background-clip: text;
            background-clip: text;
            color: transparent;
        }
        .desktop-nav {
            display: flex;
            gap: 2rem;
        }
        @media (max-width: 768px) {
            .desktop-nav {
                display: none;
            }
        }
        .nav-link {
            color: white;
            text-decoration: none;
            font-weight: 600;
            padding: 8px 16px;
            border-radius: 4px;
            transition: var(--transition);
            position: relative;
        }
        .nav-link:hover {
            background-color: rgba(255, 255, 255, 0.15);
            transform: translateY(-2px);
        }
        .nav-link::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 50%;
            transform: translateX(-50%);
            width: 0;
            height: 2px;
            background-color: var(--accent);
            transition: var(--transition);
        }
        .nav-link:hover::after {
            width: 80%;
        }
        .hamburger {
            display: none;
            background: none;
            border: none;
            color: white;
            font-size: 1.8rem;
            cursor: pointer;
            padding: 5px;
        }
        @media (max-width: 768px) {
            .hamburger {
                display: block;
            }
        }
        .mobile-nav {
            display: none;
            flex-direction: column;
            background-color: var(--primary);
            position: absolute;
            top: 100%;
            left: 0;
            width: 100%;
            padding: 1rem;
            box-shadow: 0 10px 20px rgba(0,0,0,0.2);
            z-index: 999;
        }
        .mobile-nav.active {
            display: flex;
        }
        .mobile-nav .nav-link {
            padding: 12px 20px;
            border-bottom: 1px solid rgba(255,255,255,0.1);
        }
        .breadcrumb {
            background-color: var(--light);
            padding: 1rem 0;
            border-bottom: 1px solid #ddd;
        }
        .breadcrumb ol {
            display: flex;
            list-style: none;
            gap: 10px;
            flex-wrap: wrap;
        }
        .breadcrumb li {
            display: flex;
            align-items: center;
        }
        .breadcrumb a {
            color: var(--accent);
            text-decoration: none;
            transition: var(--transition);
        }
        .breadcrumb a:hover {
            color: var(--secondary);
            text-decoration: underline;
        }
        .breadcrumb i {
            margin: 0 8px;
            color: #888;
            font-size: 0.8rem;
        }
        .search-container {
            max-width: 600px;
            margin: 2rem auto;
            padding: 0 20px;
        }
        .search-box {
            display: flex;
            box-shadow: 0 5px 15px var(--shadow);
            border-radius: 50px;
            overflow: hidden;
            transition: var(--transition);
        }
        .search-box:focus-within {
            box-shadow: 0 8px 20px rgba(52, 152, 219, 0.3);
            transform: translateY(-3px);
        }
        .search-input {
            flex: 1;
            padding: 18px 25px;
            border: none;
            font-size: 1.1rem;
            outline: none;
        }
        .search-button {
            background: linear-gradient(to right, var(--accent), var(--secondary));
            color: white;
            border: none;
            padding: 0 30px;
            cursor: pointer;
            font-weight: 600;
            transition: var(--transition);
        }
        .search-button:hover {
            background: linear-gradient(to right, #2980B9, #E74C3C);
        }
        main {
            padding: 2rem 0;
        }
        .article-header {
            text-align: center;
            margin-bottom: 3rem;
            padding: 2rem;
            background: linear-gradient(to bottom right, white, #f8f9fa);
            border-radius: 12px;
            box-shadow: 0 8px 25px var(--shadow);
        }
        h1 {
            color: var(--primary);
            font-size: 2.8rem;
            line-height: 1.2;
            margin-bottom: 1.5rem;
            position: relative;
            padding-bottom: 1rem;
        }
        h1::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 50%;
            transform: translateX(-50%);
            width: 150px;
            height: 4px;
            background: linear-gradient(to right, var(--accent), var(--secondary));
            border-radius: 2px;
        }
        .article-meta {
            display: flex;
            justify-content: center;
            gap: 2rem;
            color: #666;
            margin-top: 1.5rem;
            flex-wrap: wrap;
        }
        .meta-item {
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .meta-item i {
            color: var(--accent);
        }
        .content-section {
            margin-bottom: 3rem;
            padding: 2.5rem;
            background-color: white;
            border-radius: 12px;
            box-shadow: 0 5px 15px var(--shadow);
            transition: var(--transition);
        }
        .content-section:hover {
            box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
            transform: translateY(-5px);
        }
        h2 {
            color: var(--primary);
            font-size: 2.2rem;
            margin-bottom: 1.5rem;
            padding-bottom: 0.8rem;
            border-bottom: 2px solid var(--light);
            display: flex;
            align-items: center;
            gap: 12px;
        }
        h2 i {
            color: var(--secondary);
        }
        h3 {
            color: var(--dark);
            font-size: 1.8rem;
            margin: 2rem 0 1.2rem;
            padding-left: 15px;
            border-left: 4px solid var(--accent);
        }
        h4 {
            color: #555;
            font-size: 1.4rem;
            margin: 1.5rem 0 1rem;
        }
        p {
            margin-bottom: 1.5rem;
            font-size: 1.1rem;
            text-align: justify;
        }
        .highlight {
            background-color: rgba(52, 152, 219, 0.1);
            padding: 2rem;
            border-left: 5px solid var(--accent);
            border-radius: 0 8px 8px 0;
            margin: 2rem 0;
        }
        .highlight strong {
            color: var(--primary);
            font-size: 1.2rem;
        }
        .strategy-box {
            background: linear-gradient(to bottom right, #f8f9fa, white);
            border: 2px dashed var(--accent);
            padding: 2rem;
            border-radius: 12px;
            margin: 2rem 0;
            position: relative;
        }
        .strategy-box::before {
            content: '💡 Pro Tip';
            position: absolute;
            top: -15px;
            left: 20px;
            background-color: var(--accent);
            color: white;
            padding: 5px 15px;
            border-radius: 20px;
            font-weight: bold;
            font-size: 0.9rem;
        }
        .article-image {
            width: 100%;
            max-width: 800px;
            margin: 2.5rem auto;
            border-radius: 12px;
            overflow: hidden;
            box-shadow: 0 10px 25px rgba(0, 0, 0, 0.15);
            transition: var(--transition);
        }
        .article-image:hover {
            transform: scale(1.02);
            box-shadow: 0 15px 35px rgba(0, 0, 0, 0.2);
        }
        .article-image img {
            width: 100%;
            height: auto;
            display: block;
            transition: var(--transition);
        }
        .image-caption {
            text-align: center;
            padding: 15px;
            background-color: var(--light);
            color: #555;
            font-style: italic;
            font-size: 0.95rem;
        }
        .scoring-table {
            width: 100%;
            border-collapse: collapse;
            margin: 2rem 0;
            box-shadow: 0 5px 15px var(--shadow);
            border-radius: 8px;
            overflow: hidden;
        }
        .scoring-table th {
            background: linear-gradient(to right, var(--primary), var(--dark));
            color: white;
            padding: 1.2rem;
            text-align: left;
            font-weight: 600;
        }
        .scoring-table td {
            padding: 1rem 1.2rem;
            border-bottom: 1px solid #eee;
        }
        .scoring-table tr:nth-child(even) {
            background-color: #f9f9f9;
        }
        .scoring-table tr:hover {
            background-color: rgba(52, 152, 219, 0.1);
        }
        .user-interaction {
            background: linear-gradient(to bottom, white, #f8f9fa);
            padding: 3rem;
            border-radius: 15px;
            margin: 3rem 0;
            border: 1px solid #e0e0e0;
        }
        .interaction-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 2rem;
            margin-top: 2rem;
        }
        .interaction-box {
            background-color: white;
            padding: 2rem;
            border-radius: 10px;
            box-shadow: 0 5px 15px var(--shadow);
            transition: var(--transition);
        }
        .interaction-box:hover {
            transform: translateY(-8px);
            box-shadow: 0 12px 25px rgba(0, 0, 0, 0.15);
        }
        .interaction-box h3 {
            color: var(--primary);
            margin-bottom: 1.5rem;
            padding-bottom: 0.8rem;
            border-bottom: 2px solid var(--light);
        }
        .form-group {
            margin-bottom: 1.5rem;
        }
        .form-group label {
            display: block;
            margin-bottom: 0.5rem;
            font-weight: 600;
            color: #555;
        }
        .form-control {
            width: 100%;
            padding: 12px 15px;
            border: 2px solid #ddd;
            border-radius: 6px;
            font-size: 1rem;
            transition: var(--transition);
        }
        .form-control:focus {
            border-color: var(--accent);
            box-shadow: 0 0 0 3px rgba(52, 152, 219, 0.2);
            outline: none;
        }
        textarea.form-control {
            min-height: 120px;
            resize: vertical;
        }
        .rating-stars {
            display: flex;
            gap: 8px;
            margin: 1rem 0;
            direction: rtl;
        }
        .rating-stars input {
            display: none;
        }
        .rating-stars label {
            font-size: 2rem;
            color: #ddd;
            cursor: pointer;
            transition: var(--transition);
        }
        .rating-stars label:hover,
        .rating-stars label:hover ~ label,
        .rating-stars input:checked ~ label {
            color: var(--warning);
        }
        .submit-btn {
            background: linear-gradient(to right, var(--accent), var(--secondary));
            color: white;
            border: none;
            padding: 14px 30px;
            border-radius: 6px;
            font-weight: 600;
            font-size: 1.1rem;
            cursor: pointer;
            transition: var(--transition);
            width: 100%;
        }
        .submit-btn:hover {
            background: linear-gradient(to right, #2980B9, #E74C3C);
            transform: translateY(-3px);
            box-shadow: 0 7px 15px rgba(52, 152, 219, 0.3);
        }
        .web-links {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
            gap: 1rem;
            margin: 3rem 0;
        }
        .web-link {
            background-color: white;
            padding: 1.2rem;
            border-radius: 8px;
            box-shadow: 0 3px 10px var(--shadow);
            transition: var(--transition);
        }
        .web-link:hover {
            transform: translateY(-5px);
            box-shadow: 0 8px 20px rgba(0, 0, 0, 0.12);
            background-color: #f8f9fa;
        }
        .web-link a {
            color: var(--accent);
            text-decoration: none;
            font-weight: 600;
            display: flex;
            align-items: center;
            gap: 10px;
            transition: var(--transition);
        }
        .web-link a:hover {
            color: var(--secondary);
        }
        .web-link i {
            font-size: 0.9rem;
        }
        footer {
            background-color: var(--dark);
            color: #ddd;
            padding: 3rem 0 1.5rem;
            margin-top: 3rem;
        }
        .footer-content {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 2rem;
            margin-bottom: 2rem;
        }
        .footer-section h3 {
            color: white;
            font-size: 1.5rem;
            margin-bottom: 1.5rem;
            border-left: 4px solid var(--accent);
            padding-left: 10px;
        }
        .footer-links {
            list-style: none;
        }
        .footer-links li {
            margin-bottom: 0.8rem;
        }
        .footer-links a {
            color: #bbb;
            text-decoration: none;
            transition: var(--transition);
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .footer-links a:hover {
            color: var(--accent);
            transform: translateX(5px);
        }
        .copyright {
            text-align: center;
            padding-top: 1.5rem;
            border-top: 1px solid #444;
            color: #999;
            font-size: 0.9rem;
        }
        @media (max-width: 992px) {
            h1 {
                font-size: 2.4rem;
            }
            h2 {
                font-size: 2rem;
            }
            .content-section {
                padding: 2rem;
            }
        }
        @media (max-width: 768px) {
            h1 {
                font-size: 2rem;
            }
            h2 {
                font-size: 1.7rem;
            }
            h3 {
                font-size: 1.5rem;
            }
            .article-header {
                padding: 1.5rem;
            }
            .content-section {
                padding: 1.5rem;
            }
            .user-interaction {
                padding: 2rem 1.5rem;
            }
            .interaction-grid {
                grid-template-columns: 1fr;
            }
            .search-input {
                padding: 15px 20px;
            }
        }
        @media (max-width: 480px) {
            .article-meta {
                flex-direction: column;
                gap: 1rem;
                align-items: center;
            }
            .search-box {
                flex-direction: column;
                border-radius: 10px;
            }
            .search-input, .search-button {
                width: 100%;
                border-radius: 0;
            }
            .search-button {
                padding: 15px;
            }
        }
        @keyframes fadeInUp {
            from {
                opacity: 0;
                transform: translateY(30px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }
        .fade-in {
            animation: fadeInUp 0.8s ease-out forwards;
        }
        .section-delay-1 {
            animation-delay: 0.1s;
        }
        .section-delay-2 {
            animation-delay: 0.2s;
        }
        .emoji {
            font-size: 1.2em;
            margin-right: 5px;
        }
        .keyword {
            background-color: rgba(231, 76, 60, 0.1);
            padding: 2px 6px;
            border-radius: 4px;
            font-weight: 600;
            color: var(--secondary);
        }