* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        :root {
            --primary: #1a365d;
            --secondary: #e53e3e;
            --accent: #f6ad55;
            --light: #f7fafc;
            --dark: #2d3748;
            --gray: #718096;
            --shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
            --transition: all 0.3s ease;
        }
        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            line-height: 1.7;
            color: var(--dark);
            background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
            min-height: 100vh;
        }
        h1, h2, h3, h4 {
            color: var(--primary);
            margin-bottom: 1.5rem;
            font-weight: 700;
            line-height: 1.3;
        }
        h1 {
            font-size: 2.8rem;
            border-bottom: 4px solid var(--accent);
            padding-bottom: 0.5rem;
            margin-top: 1.5rem;
        }
        h2 {
            font-size: 2.2rem;
            border-left: 5px solid var(--secondary);
            padding-left: 1rem;
            margin-top: 3rem;
        }
        h3 {
            font-size: 1.8rem;
            color: var(--secondary);
            margin-top: 2.5rem;
        }
        p {
            margin-bottom: 1.8rem;
            font-size: 1.15rem;
            text-align: justify;
        }
        .lead {
            font-size: 1.4rem;
            color: var(--primary);
            font-weight: 600;
            padding: 1.5rem;
            background: rgba(246, 173, 85, 0.1);
            border-radius: 10px;
            border-left: 4px solid var(--accent);
        }
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        header {
            background: var(--primary);
            color: white;
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: var(--shadow);
        }
        .header-top {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 1rem 0;
        }
        .logo {
            font-size: 2.2rem;
            font-weight: 900;
            color: white;
            text-decoration: none;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .logo i {
            color: var(--accent);
        }
        nav ul {
            display: flex;
            list-style: none;
            gap: 2rem;
        }
        nav a {
            color: white;
            text-decoration: none;
            font-weight: 600;
            padding: 0.5rem 1rem;
            border-radius: 5px;
            transition: var(--transition);
            display: flex;
            align-items: center;
            gap: 8px;
        }
        nav a:hover {
            background: var(--secondary);
            transform: translateY(-2px);
        }
        .hamburger {
            display: none;
            background: none;
            border: none;
            color: white;
            font-size: 1.8rem;
            cursor: pointer;
        }
        .breadcrumb {
            background: var(--light);
            padding: 1rem;
            border-radius: 8px;
            margin: 1.5rem 0;
            box-shadow: var(--shadow);
        }
        .breadcrumb ul {
            display: flex;
            list-style: none;
            flex-wrap: wrap;
            gap: 0.8rem;
        }
        .breadcrumb a {
            color: var(--primary);
            text-decoration: none;
            font-weight: 500;
        }
        .breadcrumb i {
            margin: 0 0.5rem;
            color: var(--gray);
        }
        .search-box {
            background: white;
            padding: 2rem;
            border-radius: 12px;
            box-shadow: var(--shadow);
            margin: 2rem 0;
        }
        .search-form {
            display: flex;
            gap: 10px;
        }
        .search-form input {
            flex: 1;
            padding: 1rem;
            border: 2px solid var(--gray);
            border-radius: 8px;
            font-size: 1.1rem;
            transition: var(--transition);
        }
        .search-form input:focus {
            outline: none;
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(26, 54, 93, 0.2);
        }
        .search-form button {
            background: var(--primary);
            color: white;
            border: none;
            padding: 0 2rem;
            border-radius: 8px;
            cursor: pointer;
            font-weight: 600;
            transition: var(--transition);
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .search-form button:hover {
            background: var(--secondary);
            transform: scale(1.05);
        }
        .content-grid {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 3rem;
            margin: 3rem 0;
        }
        .main-content {
            background: white;
            padding: 2.5rem;
            border-radius: 15px;
            box-shadow: var(--shadow);
        }
        .tier-table {
            width: 100%;
            border-collapse: collapse;
            margin: 3rem 0;
            box-shadow: var(--shadow);
            border-radius: 10px;
            overflow: hidden;
        }
        .tier-table th {
            background: var(--primary);
            color: white;
            padding: 1.2rem;
            text-align: left;
            font-size: 1.2rem;
        }
        .tier-table td {
            padding: 1.2rem;
            border-bottom: 1px solid #eee;
        }
        .tier-table tr:hover {
            background: rgba(246, 173, 85, 0.1);
            transform: scale(1.01);
            transition: var(--transition);
        }
        .tier-S { color: #e53e3e; font-weight: 900; }
        .tier-A { color: #f6ad55; font-weight: 700; }
        .tier-B { color: #68d391; font-weight: 600; }
        .sidebar {
            background: white;
            padding: 2rem;
            border-radius: 15px;
            box-shadow: var(--shadow);
            height: fit-content;
            position: sticky;
            top: 120px;
        }
        .sidebar-widget {
            margin-bottom: 2.5rem;
        }
        .sidebar h3 {
            font-size: 1.5rem;
            margin-bottom: 1.5rem;
            color: var(--primary);
            padding-bottom: 0.8rem;
            border-bottom: 2px solid var(--accent);
        }
        .user-interaction {
            background: var(--light);
            padding: 2.5rem;
            border-radius: 15px;
            margin: 3rem 0;
            box-shadow: var(--shadow);
        }
        .rating-system {
            display: flex;
            flex-direction: column;
            gap: 1.5rem;
            margin-bottom: 3rem;
        }
        .stars {
            display: flex;
            gap: 0.8rem;
            font-size: 2rem;
            color: var(--gray);
            cursor: pointer;
        }
        .stars .active {
            color: var(--accent);
        }
        .comment-form, .rating-form {
            display: flex;
            flex-direction: column;
            gap: 1.5rem;
            margin-top: 2rem;
        }
        textarea, input[type="text"], input[type="email"] {
            padding: 1.2rem;
            border: 2px solid #ddd;
            border-radius: 8px;
            font-size: 1.1rem;
            font-family: inherit;
            transition: var(--transition);
        }
        textarea:focus, input:focus {
            outline: none;
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(26, 54, 93, 0.2);
        }
        .btn {
            background: var(--primary);
            color: white;
            border: none;
            padding: 1.2rem 2.5rem;
            border-radius: 8px;
            cursor: pointer;
            font-size: 1.1rem;
            font-weight: 600;
            transition: var(--transition);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 10px;
            width: fit-content;
        }
        .btn:hover {
            background: var(--secondary);
            transform: translateY(-3px);
            box-shadow: 0 6px 12px rgba(0, 0, 0, 0.15);
        }
        .featured-image {
            width: 100%;
            height: 450px;
            object-fit: cover;
            border-radius: 15px;
            margin: 3rem 0;
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
            transition: var(--transition);
        }
        .featured-image:hover {
            transform: scale(1.02);
        }
        .web-links {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 1.5rem;
            margin: 3rem 0;
            padding: 2rem;
            background: white;
            border-radius: 15px;
            box-shadow: var(--shadow);
        }
        .web-link {
            background: var(--light);
            padding: 1.5rem;
            border-radius: 10px;
            transition: var(--transition);
        }
        .web-link:hover {
            transform: translateY(-5px);
            background: rgba(246, 173, 85, 0.2);
        }
        .web-link a {
            color: var(--primary);
            text-decoration: none;
            font-weight: 600;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        footer {
            background: var(--primary);
            color: white;
            padding: 4rem 0 2rem;
            margin-top: 4rem;
        }
        .footer-content {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 3rem;
            margin-bottom: 3rem;
        }
        .footer-section h3 {
            color: var(--accent);
            border-bottom: 2px solid var(--secondary);
            padding-bottom: 0.8rem;
            margin-bottom: 1.8rem;
        }
        .footer-links {
            list-style: none;
        }
        .footer-links li {
            margin-bottom: 1rem;
        }
        .footer-links a {
            color: #cbd5e0;
            text-decoration: none;
            transition: var(--transition);
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .footer-links a:hover {
            color: var(--accent);
            padding-left: 10px;
        }
        .copyright {
            text-align: center;
            padding-top: 2rem;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            color: #a0aec0;
            font-size: 0.95rem;
        }
        @media (max-width: 992px) {
            .content-grid {
                grid-template-columns: 1fr;
            }
            .sidebar {
                position: static;
            }
            h1 {
                font-size: 2.4rem;
            }
            h2 {
                font-size: 2rem;
            }
            nav ul {
                display: none;
                position: absolute;
                top: 100%;
                left: 0;
                width: 100%;
                background: var(--primary);
                flex-direction: column;
                padding: 1rem;
                box-shadow: var(--shadow);
            }
            nav ul.active {
                display: flex;
            }
            .hamburger {
                display: block;
            }
        }
        @media (max-width: 768px) {
            .search-form {
                flex-direction: column;
            }
            .search-form button {
                justify-content: center;
            }
            .featured-image {
                height: 300px;
            }
            .tier-table {
                display: block;
                overflow-x: auto;
            }
        }
        @media print {
            .user-interaction, .sidebar, .web-links, footer {
                display: none;
            }
        }