:root {
            --primary-color: #1a365d;
            --secondary-color: #d4af37;
            --accent-color: #e53e3e;
            --text-color: #2d3748;
            --light-bg: #f7fafc;
            --dark-bg: #1a202c;
            --border-radius: 8px;
            --box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
            --transition: all 0.3s ease;
        }
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            line-height: 1.6;
            color: var(--text-color);
            background-color: var(--light-bg);
            max-width: 1400px;
            margin: 0 auto;
            padding: 0 15px;
        }
        a {
            color: var(--primary-color);
            text-decoration: none;
            transition: var(--transition);
        }
        a:hover {
            color: var(--accent-color);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        header {
            background: linear-gradient(135deg, var(--primary-color), #2d3748);
            color: white;
            padding: 1.5rem 0;
            border-bottom: 4px solid var(--secondary-color);
            position: sticky;
            top: 0;
            z-index: 1000;
        }
        .header-container {
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
        }
        .my-logo {
            font-family: 'Georgia', serif;
            font-size: 2.5rem;
            font-weight: bold;
            color: var(--secondary-color);
            text-shadow: 2px 2px 4px rgba(0,0,0,0.5);
            letter-spacing: 1px;
        }
        .my-logo a {
            color: inherit;
        }
        .my-logo a:hover {
            color: white;
        }
        nav {
            display: flex;
            align-items: center;
        }
        .nav-links {
            display: flex;
            list-style: none;
            gap: 1.5rem;
        }
        .nav-links a {
            color: white;
            font-weight: 500;
            padding: 0.5rem 0.75rem;
            border-radius: var(--border-radius);
        }
        .nav-links a:hover {
            background-color: rgba(255, 255, 255, 0.1);
            color: var(--secondary-color);
        }
        .hamburger {
            display: none;
            background: none;
            border: none;
            color: white;
            font-size: 1.8rem;
            cursor: pointer;
            padding: 0.5rem;
        }
        .breadcrumb {
            background-color: #edf2f7;
            padding: 0.75rem 1rem;
            border-radius: var(--border-radius);
            margin: 1rem 0;
            font-size: 0.9rem;
        }
        .breadcrumb a {
            color: var(--primary-color);
        }
        .breadcrumb a:hover {
            text-decoration: underline;
        }
        .breadcrumb i {
            margin: 0 0.5rem;
            color: #718096;
        }
        main {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 2rem;
            margin: 2rem 0;
        }
        article {
            background-color: white;
            padding: 2rem;
            border-radius: var(--border-radius);
            box-shadow: var(--box-shadow);
        }
        aside {
            background-color: white;
            padding: 1.5rem;
            border-radius: var(--border-radius);
            box-shadow: var(--box-shadow);
            align-self: start;
            position: sticky;
            top: 120px;
        }
        h1, h2, h3, h4 {
            color: var(--primary-color);
            margin-top: 1.5em;
            margin-bottom: 0.5em;
            line-height: 1.3;
        }
        h1 {
            font-size: 2.5rem;
            border-bottom: 3px solid var(--secondary-color);
            padding-bottom: 0.5rem;
            margin-top: 0;
        }
        h2 {
            font-size: 1.8rem;
            color: var(--accent-color);
        }
        h3 {
            font-size: 1.5rem;
        }
        h4 {
            font-size: 1.2rem;
            color: #4a5568;
        }
        p {
            margin-bottom: 1.2rem;
            text-align: justify;
        }
        .lead {
            font-size: 1.2rem;
            font-weight: 500;
            color: var(--primary-color);
            background-color: #e6fffa;
            padding: 1rem;
            border-left: 4px solid var(--secondary-color);
            border-radius: var(--border-radius);
            margin-bottom: 2rem;
        }
        .highlight {
            background-color: #fffacd;
            padding: 0.2rem 0.4rem;
            border-radius: 4px;
            font-weight: 600;
        }
        .last-updated {
            background-color: var(--light-bg);
            padding: 0.75rem;
            border-radius: var(--border-radius);
            font-size: 0.9rem;
            color: #718096;
            text-align: center;
            margin: 2rem 0;
            border-left: 4px solid var(--secondary-color);
        }
        .search-box, .comment-form, .rating-form {
            background-color: var(--light-bg);
            padding: 1.5rem;
            border-radius: var(--border-radius);
            margin: 2rem 0;
        }
        .search-box h3, .comment-form h3, .rating-form h3 {
            margin-top: 0;
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }
        .search-box form, .comment-form form, .rating-form form {
            display: flex;
            flex-direction: column;
            gap: 1rem;
        }
        input, textarea, select {
            padding: 0.75rem;
            border: 1px solid #cbd5e0;
            border-radius: var(--border-radius);
            font-family: inherit;
            font-size: 1rem;
            transition: var(--transition);
        }
        input:focus, textarea:focus, select:focus {
            outline: none;
            border-color: var(--primary-color);
            box-shadow: 0 0 0 3px rgba(26, 54, 93, 0.1);
        }
        button {
            background-color: var(--primary-color);
            color: white;
            border: none;
            padding: 0.75rem 1.5rem;
            border-radius: var(--border-radius);
            cursor: pointer;
            font-weight: 600;
            transition: var(--transition);
            align-self: flex-start;
        }
        button:hover {
            background-color: var(--accent-color);
            transform: translateY(-2px);
            box-shadow: 0 4px 8px rgba(0,0,0,0.2);
        }
        .rating-stars {
            display: flex;
            gap: 0.5rem;
            font-size: 1.5rem;
            color: #cbd5e0;
            margin: 0.5rem 0;
        }
        .rating-stars i {
            cursor: pointer;
            transition: var(--transition);
        }
        .rating-stars i:hover, .rating-stars i.active {
            color: #f6ad55;
        }
        .featured-img {
            margin: 2rem auto;
            border-radius: var(--border-radius);
            overflow: hidden;
            box-shadow: var(--box-shadow);
            max-width: 800px;
        }
        .featured-img img {
            width: 100%;
            transition: var(--transition);
        }
        .featured-img:hover img {
            transform: scale(1.02);
        }
        .img-caption {
            text-align: center;
            font-style: italic;
            color: #718096;
            margin-top: 0.5rem;
            font-size: 0.9rem;
        }
        .content-link {
            color: var(--accent-color);
            font-weight: 600;
            border-bottom: 1px dashed currentColor;
        }
        .content-link:hover {
            border-bottom-style: solid;
        }
        .tier-table {
            width: 100%;
            border-collapse: collapse;
            margin: 2rem 0;
            box-shadow: var(--box-shadow);
            border-radius: var(--border-radius);
            overflow: hidden;
        }
        .tier-table th, .tier-table td {
            padding: 1rem;
            text-align: left;
            border-bottom: 1px solid #e2e8f0;
        }
        .tier-table th {
            background-color: var(--primary-color);
            color: white;
            font-weight: 600;
        }
        .tier-table tr:nth-child(even) {
            background-color: #f8fafc;
        }
        .tier-table tr:hover {
            background-color: #edf2f7;
        }
        .tier-S { color: #e53e3e; font-weight: bold; }
        .tier-A { color: #ed8936; font-weight: bold; }
        .tier-B { color: #38a169; font-weight: bold; }
        .tier-C { color: #3182ce; font-weight: bold; }
        footer {
            background-color: var(--dark-bg);
            color: white;
            padding: 2.5rem 0 1.5rem;
            margin-top: 3rem;
            border-top: 4px solid var(--secondary-color);
        }
        .footer-content {
            display: flex;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 2rem;
            margin-bottom: 2rem;
        }
        .footer-section {
            flex: 1;
            min-width: 250px;
        }
        .footer-section h3 {
            color: var(--secondary-color);
            margin-bottom: 1rem;
            font-size: 1.3rem;
        }
        .footer-links {
            list-style: none;
        }
        .footer-links li {
            margin-bottom: 0.75rem;
        }
        .footer-links a {
            color: #cbd5e0;
        }
        .footer-links a:hover {
            color: white;
            padding-left: 5px;
        }
        friend-link {
            display: inline-block;
            background-color: rgba(255,255,255,0.1);
            padding: 0.5rem 1rem;
            border-radius: var(--border-radius);
            margin-right: 0.75rem;
            margin-bottom: 0.75rem;
        }
        friend-link a {
            color: var(--secondary-color);
            font-weight: 500;
        }
        .copyright {
            text-align: center;
            padding-top: 1.5rem;
            border-top: 1px solid #4a5568;
            color: #a0aec0;
            font-size: 0.9rem;
        }
        @media (max-width: 992px) {
            main {
                grid-template-columns: 1fr;
            }
            aside {
                position: static;
            }
        }
        @media (max-width: 768px) {
            .header-container {
                flex-direction: column;
                align-items: flex-start;
            }
            .nav-links {
                display: none;
                flex-direction: column;
                width: 100%;
                margin-top: 1rem;
            }
            .nav-links.active {
                display: flex;
            }
            .hamburger {
                display: block;
                position: absolute;
                right: 15px;
                top: 1.5rem;
            }
            h1 {
                font-size: 2rem;
            }
            h2 {
                font-size: 1.6rem;
            }
            .footer-content {
                flex-direction: column;
            }
        }
        @keyframes fadeIn {
            from { opacity: 0; transform: translateY(10px); }
            to { opacity: 1; transform: translateY(0); }
        }
        article, aside, .search-box, .comment-form, .rating-form {
            animation: fadeIn 0.5s ease-out;
        }
        .emoji {
            font-size: 1.2em;
            margin-right: 0.3em;
        }