:root {
            --primary-dark: #0a1f2d;
            --primary-gold: #c8a165;
            --primary-blue: #00aeff;
            --secondary-brown: #3d2b1f;
            --light-bg: #f5f1e8;
            --text-light: #e6e6e6;
            --text-dark: #333333;
            --shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
            --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: 1.8;
            color: var(--text-dark);
            background-color: var(--light-bg);
            background-image: linear-gradient(to bottom, var(--primary-dark) 0%, var(--primary-dark) 300px, var(--light-bg) 300px);
        }
        a {
            color: var(--primary-blue);
            text-decoration: none;
            transition: var(--transition);
        }
        a:hover {
            color: var(--primary-gold);
            text-decoration: underline;
        }
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        .site-header {
            background-color: var(--primary-dark);
            color: var(--text-light);
            padding: 1rem 0;
            box-shadow: var(--shadow);
            position: sticky;
            top: 0;
            z-index: 1000;
        }
        .header-container {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .my-logo {
            font-family: 'Palatino Linotype', 'Book Antiqua', Palatino, serif;
            font-size: 2.2rem;
            font-weight: bold;
            color: var(--primary-gold);
            text-shadow: 2px 2px 4px rgba(0,0,0,0.5);
            letter-spacing: 1px;
        }
        .my-logo:hover {
            color: #fff;
            text-decoration: none;
        }
        .main-nav ul {
            display: flex;
            list-style: none;
        }
        .main-nav li {
            margin-left: 2rem;
        }
        .main-nav a {
            color: var(--text-light);
            font-weight: 600;
            padding: 0.5rem 0;
            position: relative;
        }
        .main-nav a:hover {
            text-decoration: none;
            color: var(--primary-gold);
        }
        .main-nav a::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 0;
            height: 2px;
            background: var(--primary-gold);
            transition: var(--transition);
        }
        .main-nav a:hover::after {
            width: 100%;
        }
        .hamburger {
            display: none;
            background: none;
            border: none;
            color: var(--text-light);
            font-size: 1.8rem;
            cursor: pointer;
        }
        .breadcrumb {
            padding: 1rem 0;
            background-color: rgba(10, 31, 45, 0.9);
            color: var(--text-light);
            font-size: 0.9rem;
        }
        .breadcrumb a {
            color: var(--primary-gold);
        }
        .breadcrumb span {
            margin: 0 8px;
        }
        main {
            background: white;
            border-radius: 8px;
            box-shadow: var(--shadow);
            padding: 3rem;
            margin: 2rem auto;
            position: relative;
            overflow: hidden;
        }
        h1 {
            color: var(--primary-dark);
            border-bottom: 3px solid var(--primary-gold);
            padding-bottom: 1rem;
            margin-bottom: 2rem;
            font-size: 2.8rem;
        }
        h2 {
            color: var(--secondary-brown);
            margin: 2.5rem 0 1.5rem;
            padding-left: 10px;
            border-left: 5px solid var(--primary-blue);
        }
        h3 {
            color: var(--primary-dark);
            margin: 2rem 0 1rem;
        }
        h4 {
            color: #555;
            margin: 1.5rem 0 0.8rem;
            font-style: italic;
        }
        p {
            margin-bottom: 1.5rem;
            text-align: justify;
        }
        .lead {
            font-size: 1.2rem;
            font-weight: bold;
            color: var(--primary-dark);
            background: #f0f8ff;
            padding: 1.5rem;
            border-radius: 5px;
            border-left: 5px solid var(--primary-blue);
        }
        .highlight {
            background-color: #fffacd;
            padding: 1.5rem;
            border-radius: 5px;
            border-left: 5px solid #ffd700;
            margin: 2rem 0;
        }
        .note {
            background-color: #e6f7ff;
            padding: 1rem;
            border-radius: 5px;
            border-left: 5px solid var(--primary-blue);
            margin: 1.5rem 0;
        }
        .feature-img {
            width: 100%;
            max-width: 800px;
            height: auto;
            border-radius: 8px;
            box-shadow: var(--shadow);
            margin: 2rem auto;
            display: block;
            border: 5px solid var(--primary-gold);
        }
        .float-left {
            float: left;
            margin: 0 2rem 1rem 0;
            max-width: 400px;
        }
        .interactive-module {
            background: #f9f9f9;
            border-radius: 10px;
            padding: 2rem;
            margin: 3rem 0;
            border-top: 6px solid var(--primary-gold);
        }
        .module-title {
            color: var(--primary-dark);
            margin-bottom: 1.5rem;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .search-box, .comment-form, .rating-form {
            display: flex;
            flex-direction: column;
            gap: 1rem;
        }
        .search-box form {
            display: flex;
            gap: 10px;
        }
        input, textarea, select {
            padding: 12px;
            border: 1px solid #ccc;
            border-radius: 5px;
            font-family: inherit;
            font-size: 1rem;
            width: 100%;
        }
        input:focus, textarea:focus, select:focus {
            outline: none;
            border-color: var(--primary-blue);
            box-shadow: 0 0 5px rgba(0, 174, 255, 0.5);
        }
        button, .btn {
            background-color: var(--primary-blue);
            color: white;
            border: none;
            padding: 12px 24px;
            border-radius: 5px;
            cursor: pointer;
            font-weight: bold;
            transition: var(--transition);
        }
        button:hover, .btn:hover {
            background-color: var(--primary-dark);
            text-decoration: none;
        }
        .star-rating {
            display: flex;
            flex-direction: row-reverse;
            justify-content: flex-end;
            gap: 5px;
            font-size: 2rem;
            color: #ddd;
            cursor: pointer;
        }
        .star-rating input {
            display: none;
        }
        .star-rating label:hover,
        .star-rating label:hover ~ label,
        .star-rating input:checked ~ label {
            color: #ffd700;
        }
        .related-links {
            background: var(--light-bg);
            padding: 1.5rem;
            border-radius: 8px;
            margin: 2rem 0;
        }
        .related-links ul {
            list-style: none;
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
            gap: 1rem;
        }
        .related-links li {
            background: white;
            padding: 1rem;
            border-radius: 5px;
            transition: var(--transition);
        }
        .related-links li:hover {
            transform: translateY(-5px);
            box-shadow: var(--shadow);
        }
        .site-footer {
            background-color: var(--primary-dark);
            color: var(--text-light);
            padding: 3rem 0 1.5rem;
            margin-top: 3rem;
        }
        .footer-container {
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            gap: 2rem;
        }
        .footer-section {
            flex: 1;
            min-width: 250px;
        }
        .footer-section h3 {
            color: var(--primary-gold);
            margin-bottom: 1.5rem;
            border-bottom: 1px solid var(--primary-gold);
            padding-bottom: 0.5rem;
        }
        friend-link {
            display: block;
            margin-bottom: 0.8rem;
            color: var(--text-light);
        }
        friend-link a {
            color: var(--text-light);
        }
        friend-link a:hover {
            color: var(--primary-gold);
        }
        .copyright {
            text-align: center;
            margin-top: 2rem;
            padding-top: 1.5rem;
            border-top: 1px solid rgba(200, 161, 101, 0.3);
            font-size: 0.9rem;
            color: #aaa;
        }
        @media (max-width: 768px) {
            .hamburger {
                display: block;
            }
            .main-nav ul {
                display: none;
                flex-direction: column;
                position: absolute;
                top: 100%;
                left: 0;
                width: 100%;
                background-color: var(--primary-dark);
                padding: 1rem;
                box-shadow: var(--shadow);
            }
            .main-nav.active ul {
                display: flex;
            }
            .main-nav li {
                margin: 0.5rem 0;
            }
            h1 {
                font-size: 2rem;
            }
            main {
                padding: 1.5rem;
                margin: 1rem auto;
            }
            .float-left {
                float: none;
                margin: 1rem auto;
                max-width: 100%;
            }
            .search-box form {
                flex-direction: column;
            }
        }
        .update-time {
            text-align: right;
            font-style: italic;
            color: #777;
            margin-bottom: 2rem;
            font-size: 0.9rem;
        }
        .emoji {
            font-size: 1.2em;
            margin-right: 5px;
        }
        .strong-point {
            font-weight: bold;
            color: var(--primary-dark);
            background: linear-gradient(transparent 60%, #ffd700 60%);
        }