* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        :root {
            --primary-color: #2c3e50;
            --secondary-color: #3498db;
            --accent-color: #e74c3c;
            --light-color: #ecf0f1;
            --dark-color: #1a252f;
            --success-color: #27ae60;
            --warning-color: #f39c12;
            --text-color: #333;
            --text-light: #666;
            --border-color: #ddd;
            --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: #f9f9f9;
        }
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        .site-header {
            background: linear-gradient(135deg, var(--primary-color) 0%, var(--dark-color) 100%);
            color: white;
            padding: 1rem 0;
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: var(--shadow);
        }
        .header-content {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .logo {
            font-size: 1.8rem;
            font-weight: 700;
            text-decoration: none;
            color: white;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .logo i {
            color: var(--secondary-color);
        }
        .logo:hover {
            color: var(--light-color);
        }
        .menu-toggle {
            display: none;
            background: none;
            border: none;
            color: white;
            font-size: 1.5rem;
            cursor: pointer;
            padding: 5px;
        }
        .main-nav ul {
            display: flex;
            list-style: none;
            gap: 1.5rem;
        }
        .main-nav a {
            color: white;
            text-decoration: none;
            font-weight: 600;
            padding: 8px 12px;
            border-radius: 4px;
            transition: var(--transition);
        }
        .main-nav a:hover {
            background-color: rgba(255,255,255,0.1);
            color: var(--secondary-color);
        }
        .main-nav a.active {
            background-color: var(--secondary-color);
        }
        .breadcrumb {
            background-color: var(--light-color);
            padding: 12px 0;
            margin-bottom: 2rem;
        }
        .breadcrumb ul {
            display: flex;
            list-style: none;
            flex-wrap: wrap;
            gap: 10px;
        }
        .breadcrumb li {
            display: flex;
            align-items: center;
        }
        .breadcrumb a {
            color: var(--secondary-color);
            text-decoration: none;
        }
        .breadcrumb a:hover {
            text-decoration: underline;
        }
        .breadcrumb i {
            margin: 0 8px;
            color: var(--text-light);
            font-size: 0.8rem;
        }
        .search-container {
            background-color: white;
            padding: 2rem;
            border-radius: 8px;
            box-shadow: var(--shadow);
            margin-bottom: 2rem;
            text-align: center;
        }
        .search-form {
            display: flex;
            max-width: 600px;
            margin: 0 auto;
        }
        .search-input {
            flex: 1;
            padding: 12px 20px;
            border: 2px solid var(--border-color);
            border-radius: 4px 0 0 4px;
            font-size: 1rem;
            transition: var(--transition);
        }
        .search-input:focus {
            outline: none;
            border-color: var(--secondary-color);
        }
        .search-button {
            background-color: var(--secondary-color);
            color: white;
            border: none;
            padding: 12px 24px;
            border-radius: 0 4px 4px 0;
            cursor: pointer;
            font-weight: 600;
            transition: var(--transition);
        }
        .search-button:hover {
            background-color: #2980b9;
        }
        .main-content {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 2rem;
            margin-bottom: 3rem;
        }
        @media (max-width: 768px) {
            .main-content {
                grid-template-columns: 1fr;
            }
        }
        .article-content {
            background-color: white;
            padding: 2rem;
            border-radius: 8px;
            box-shadow: var(--shadow);
        }
        .article-header {
            margin-bottom: 2rem;
            border-bottom: 3px solid var(--secondary-color);
            padding-bottom: 1rem;
        }
        h1 {
            font-size: 2.2rem;
            color: var(--primary-color);
            margin-bottom: 1rem;
            line-height: 1.3;
        }
        .article-meta {
            display: flex;
            gap: 20px;
            color: var(--text-light);
            font-size: 0.9rem;
            margin-bottom: 1rem;
        }
        .article-meta i {
            margin-right: 5px;
        }
        h2, h3, h4 {
            color: var(--primary-color);
            margin: 1.5rem 0 1rem 0;
        }
        h2 {
            font-size: 1.8rem;
            padding-bottom: 0.5rem;
            border-bottom: 2px solid var(--border-color);
        }
        h3 {
            font-size: 1.4rem;
        }
        p {
            margin-bottom: 1.2rem;
            text-align: justify;
        }
        .highlight {
            background-color: #fff9e6;
            border-left: 4px solid var(--warning-color);
            padding: 1.2rem;
            margin: 1.5rem 0;
            border-radius: 0 4px 4px 0;
        }
        .hero-image {
            width: 100%;
            height: auto;
            border-radius: 8px;
            margin: 1.5rem 0;
            box-shadow: var(--shadow);
        }
        .tier-section {
            margin: 2rem 0;
        }
        .tier-container {
            display: grid;
            gap: 1.5rem;
            margin-top: 1.5rem;
        }
        .tier-category {
            background-color: white;
            border-radius: 8px;
            overflow: hidden;
            box-shadow: var(--shadow);
            transition: var(--transition);
        }
        .tier-category:hover {
            transform: translateY(-5px);
            box-shadow: 0 8px 20px rgba(0,0,0,0.15);
        }
        .tier-header {
            padding: 1rem 1.5rem;
            color: white;
            font-weight: 700;
            font-size: 1.2rem;
        }
        .tier-s {
            background: linear-gradient(to right, #ff7e5f, #feb47b);
        }
        .tier-a {
            background: linear-gradient(to right, #3498db, #2ecc71);
        }
        .tier-b {
            background: linear-gradient(to right, #9b59b6, #3498db);
        }
        .tier-c {
            background: linear-gradient(to right, #e74c3c, #e67e22);
        }
        .tier-heroes {
            padding: 1.5rem;
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
            gap: 1rem;
        }
        .hero-card {
            text-align: center;
            padding: 1rem;
            border-radius: 6px;
            background-color: var(--light-color);
            transition: var(--transition);
        }
        .hero-card:hover {
            background-color: #e0e7ff;
        }
        .hero-icon {
            font-size: 2.5rem;
            color: var(--secondary-color);
            margin-bottom: 0.5rem;
        }
        .hero-name {
            font-weight: 600;
            margin-bottom: 0.3rem;
        }
        .hero-role {
            font-size: 0.85rem;
            color: var(--text-light);
            margin-bottom: 0.5rem;
        }
        .hero-rating {
            color: var(--warning-color);
        }
        .sidebar {
            background-color: white;
            border-radius: 8px;
            padding: 1.5rem;
            box-shadow: var(--shadow);
            align-self: start;
            position: sticky;
            top: 100px;
        }
        .sidebar-section {
            margin-bottom: 2rem;
        }
        .sidebar-section h3 {
            font-size: 1.2rem;
            margin-bottom: 1rem;
            padding-bottom: 0.5rem;
            border-bottom: 2px solid var(--secondary-color);
        }
        .sidebar-list {
            list-style: none;
        }
        .sidebar-list li {
            margin-bottom: 0.8rem;
            padding-bottom: 0.8rem;
            border-bottom: 1px solid var(--border-color);
        }
        .sidebar-list a {
            color: var(--text-color);
            text-decoration: none;
            display: flex;
            align-items: center;
            gap: 10px;
            transition: var(--transition);
        }
        .sidebar-list a:hover {
            color: var(--secondary-color);
        }
        .sidebar-list i {
            color: var(--secondary-color);
        }
        .user-interaction {
            background-color: white;
            padding: 2rem;
            border-radius: 8px;
            box-shadow: var(--shadow);
            margin-bottom: 2rem;
        }
        .interaction-tabs {
            display: flex;
            border-bottom: 2px solid var(--border-color);
            margin-bottom: 1.5rem;
        }
        .tab-button {
            padding: 12px 24px;
            background: none;
            border: none;
            font-weight: 600;
            color: var(--text-light);
            cursor: pointer;
            position: relative;
            transition: var(--transition);
        }
        .tab-button.active {
            color: var(--secondary-color);
        }
        .tab-button.active::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 0;
            width: 100%;
            height: 2px;
            background-color: var(--secondary-color);
        }
        .tab-content {
            display: none;
        }
        .tab-content.active {
            display: block;
        }
        .form-group {
            margin-bottom: 1.2rem;
        }
        .form-label {
            display: block;
            margin-bottom: 0.5rem;
            font-weight: 600;
        }
        .form-input, .form-textarea, .form-select {
            width: 100%;
            padding: 10px 15px;
            border: 1px solid var(--border-color);
            border-radius: 4px;
            font-size: 1rem;
            transition: var(--transition);
        }
        .form-input:focus, .form-textarea:focus, .form-select:focus {
            outline: none;
            border-color: var(--secondary-color);
            box-shadow: 0 0 0 3px rgba(52, 152, 219, 0.2);
        }
        .form-textarea {
            min-height: 120px;
            resize: vertical;
        }
        .rating-stars {
            display: flex;
            gap: 5px;
            margin: 10px 0;
            direction: rtl;
        }
        .rating-stars input {
            display: none;
        }
        .rating-stars label {
            font-size: 1.8rem;
            color: #ddd;
            cursor: pointer;
            transition: var(--transition);
        }
        .rating-stars label:hover,
        .rating-stars label:hover ~ label,
        .rating-stars input:checked ~ label {
            color: var(--warning-color);
        }
        .submit-button {
            background-color: var(--secondary-color);
            color: white;
            border: none;
            padding: 12px 30px;
            border-radius: 4px;
            font-size: 1rem;
            font-weight: 600;
            cursor: pointer;
            transition: var(--transition);
        }
        .submit-button:hover {
            background-color: #2980b9;
        }
        .comments-section {
            margin-top: 2rem;
        }
        .comment {
            display: flex;
            gap: 15px;
            padding: 1.5rem;
            border-bottom: 1px solid var(--border-color);
            background-color: white;
            border-radius: 8px;
            margin-bottom: 1rem;
            box-shadow: 0 2px 5px rgba(0,0,0,0.05);
        }
        .comment-avatar {
            width: 50px;
            height: 50px;
            border-radius: 50%;
            background-color: var(--secondary-color);
            display: flex;
            align-items: center;
            justify-content: center;
            color: white;
            font-weight: 700;
            font-size: 1.2rem;
            flex-shrink: 0;
        }
        .comment-content {
            flex: 1;
        }
        .comment-header {
            display: flex;
            justify-content: space-between;
            margin-bottom: 0.5rem;
            flex-wrap: wrap;
        }
        .comment-author {
            font-weight: 700;
            color: var(--primary-color);
        }
        .comment-date {
            color: var(--text-light);
            font-size: 0.85rem;
        }
        .comment-rating {
            color: var(--warning-color);
            margin-top: 5px;
        }
        .footer-links {
            background-color: var(--light-color);
            padding: 2rem 0;
            margin-top: 2rem;
        }
        .web-link-container {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
            gap: 1rem;
            margin-bottom: 2rem;
        }
        .web-link {
            background-color: white;
            padding: 1rem;
            border-radius: 6px;
            box-shadow: 0 2px 5px rgba(0,0,0,0.05);
            transition: var(--transition);
        }
        .web-link:hover {
            transform: translateY(-3px);
            box-shadow: 0 5px 15px rgba(0,0,0,0.1);
        }
        .web-link a {
            color: var(--secondary-color);
            text-decoration: none;
            font-weight: 600;
            display: block;
            padding: 8px;
            border-radius: 4px;
            transition: var(--transition);
        }
        .web-link a:hover {
            background-color: rgba(52, 152, 219, 0.1);
        }
        .site-footer {
            background-color: var(--dark-color);
            color: white;
            padding: 2rem 0;
        }
        .footer-content {
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 1rem;
        }
        .copyright {
            font-size: 0.9rem;
            color: #aaa;
        }
        .footer-nav a {
            color: #aaa;
            text-decoration: none;
            margin-left: 1.5rem;
            transition: var(--transition);
        }
        .footer-nav a:hover {
            color: white;
        }
        @media (max-width: 1024px) {
            .container {
                padding: 0 15px;
            }
            h1 {
                font-size: 1.8rem;
            }
            .tier-heroes {
                grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
            }
        }
        @media (max-width: 768px) {
            .menu-toggle {
                display: block;
            }
            .main-nav {
                position: fixed;
                top: 70px;
                left: 0;
                width: 100%;
                background-color: var(--primary-color);
                padding: 1rem;
                transform: translateY(-100%);
                opacity: 0;
                visibility: hidden;
                transition: var(--transition);
                z-index: 999;
                box-shadow: 0 5px 15px rgba(0,0,0,0.2);
            }
            .main-nav.active {
                transform: translateY(0);
                opacity: 1;
                visibility: visible;
            }
            .main-nav ul {
                flex-direction: column;
                gap: 0;
            }
            .main-nav li {
                width: 100%;
            }
            .main-nav a {
                display: block;
                padding: 12px 15px;
                border-radius: 4px;
                margin-bottom: 5px;
            }
            .header-content {
                padding: 0 10px;
            }
            .article-content, .sidebar, .user-interaction {
                padding: 1.5rem;
            }
            .footer-content {
                flex-direction: column;
                text-align: center;
            }
            .footer-nav {
                margin-top: 1rem;
            }
            .footer-nav a {
                margin: 0 0.75rem;
            }
            .comment-header {
                flex-direction: column;
                gap: 5px;
            }
        }
        @media (max-width: 480px) {
            .search-form {
                flex-direction: column;
            }
            .search-input {
                border-radius: 4px;
                margin-bottom: 10px;
            }
            .search-button {
                border-radius: 4px;
            }
            .tier-heroes {
                grid-template-columns: repeat(auto-fill, minmax(130px, 1fr));
            }
            .hero-card {
                padding: 0.8rem;
            }
            .interaction-tabs {
                flex-direction: column;
            }
            .tab-button {
                text-align: left;
                border-bottom: 1px solid var(--border-color);
            }
            .tab-button.active::after {
                display: none;
            }
        }
        @media print {
            .site-header, .sidebar, .user-interaction, .footer-links, .site-footer {
                display: none;
            }
            .main-content {
                grid-template-columns: 1fr;
            }
            body {
                background-color: white;
                color: black;
            }
            .article-content {
                box-shadow: none;
                padding: 0;
            }
        }
        @keyframes fadeIn {
            from { opacity: 0; transform: translateY(20px); }
            to { opacity: 1; transform: translateY(0); }
        }
        .fade-in {
            animation: fadeIn 0.5s ease forwards;
        }
        .text-center { text-align: center; }
        .text-bold { font-weight: 700; }
        .text-secondary { color: var(--secondary-color); }
        .text-accent { color: var(--accent-color); }
        .text-success { color: var(--success-color); }
        .mb-1 { margin-bottom: 1rem; }
        .mb-2 { margin-bottom: 2rem; }
        .mt-1 { margin-top: 1rem; }
        .mt-2 { margin-top: 2rem; }
        .emoji { font-size: 1.2rem; margin-right: 5px; }