:root {
            --primary-color: #2a5c3d;
            --secondary-color: #c19a6b;
            --accent-color: #8b4513;
            --light-color: #f5f1e8;
            --dark-color: #1a1a1a;
            --text-color: #333;
            --shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
            --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: 1.7;
            color: var(--text-color);
            background-color: var(--light-color);
            background-image: url("data:image/svg+xml,%3Csvg width='100' height='100' viewBox='0 0 100 100' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M11 18c3.866 0 7-3.134 7-7s-3.134-7-7-7-7 3.134-7 7 3.134 7 7 7zm48 25c3.866 0 7-3.134 7-7s-3.134-7-7-7-7 3.134-7 7 3.134 7 7 7zm-43-7c1.657 0 3-1.343 3-3s-1.343-3-3-3-3 1.343-3 3 1.343 3 3 3zm63 31c1.657 0 3-1.343 3-3s-1.343-3-3-3-3 1.343-3 3 1.343 3 3 3zM34 90c1.657 0 3-1.343 3-3s-1.343-3-3-3-3 1.343-3 3 1.343 3 3 3zm56-76c1.657 0 3-1.343 3-3s-1.343-3-3-3-3 1.343-3 3 1.343 3 3 3zM12 86c2.21 0 4-1.79 4-4s-1.79-4-4-4-4 1.79-4 4 1.79 4 4 4zm28-65c2.21 0 4-1.79 4-4s-1.79-4-4-4-4 1.79-4 4 1.79 4 4 4zm23-11c2.76 0 5-2.24 5-5s-2.24-5-5-5-5 2.24-5 5 2.24 5 5 5zm-6 60c2.21 0 4-1.79 4-4s-1.79-4-4-4-4 1.79-4 4 1.79 4 4 4zm29 22c2.76 0 5-2.24 5-5s-2.24-5-5-5-5 2.24-5 5 2.24 5 5 5zM32 63c2.76 0 5-2.24 5-5s-2.24-5-5-5-5 2.24-5 5 2.24 5 5 5zm57-13c2.76 0 5-2.24 5-5s-2.24-5-5-5-5 2.24-5 5 2.24 5 5 5zm-9-21c1.105 0 2-.895 2-2s-.895-2-2-2-2 .895-2 2 .895 2 2 2zM60 91c1.105 0 2-.895 2-2s-.895-2-2-2-2 .895-2 2 .895 2 2 2zM35 41c1.105 0 2-.895 2-2s-.895-2-2-2-2 .895-2 2 .895 2 2 2zM12 60c1.105 0 2-.895 2-2s-.895-2-2-2-2 .895-2 2 .895 2 2 2z' fill='%232a5c3d' fill-opacity='0.03' fill-rule='evenodd'/%3E%3C/svg%3E");
        }
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        header {
            background-color: white;
            box-shadow: var(--shadow);
            position: sticky;
            top: 0;
            z-index: 1000;
        }
        .header-top {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 15px 0;
        }
        .my-logo {
            font-family: 'Georgia', serif;
            font-size: 2.2rem;
            font-weight: bold;
            color: var(--primary-color);
            text-decoration: none;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .my-logo i {
            color: var(--secondary-color);
            font-size: 2.5rem;
        }
        .my-logo:hover {
            color: var(--accent-color);
        }
        .search-form {
            display: flex;
            max-width: 400px;
            width: 100%;
        }
        .search-form input {
            flex: 1;
            padding: 12px 15px;
            border: 2px solid #ddd;
            border-radius: 30px 0 0 30px;
            font-size: 1rem;
            outline: none;
            transition: var(--transition);
        }
        .search-form input:focus {
            border-color: var(--primary-color);
        }
        .search-form button {
            background-color: var(--primary-color);
            color: white;
            border: none;
            padding: 0 25px;
            border-radius: 0 30px 30px 0;
            cursor: pointer;
            font-size: 1rem;
            transition: var(--transition);
        }
        .search-form button:hover {
            background-color: var(--accent-color);
        }
        nav ul {
            display: flex;
            list-style: none;
            background-color: var(--primary-color);
            border-radius: 8px;
            overflow: hidden;
        }
        nav li {
            flex: 1;
        }
        nav a {
            display: block;
            color: white;
            text-decoration: none;
            padding: 15px 20px;
            text-align: center;
            font-weight: 500;
            transition: var(--transition);
            border-right: 1px solid rgba(255, 255, 255, 0.1);
        }
        nav a:last-child {
            border-right: none;
        }
        nav a:hover, nav a.active {
            background-color: var(--secondary-color);
            color: var(--dark-color);
        }
        .hamburger {
            display: none;
            background: none;
            border: none;
            font-size: 1.8rem;
            color: var(--primary-color);
            cursor: pointer;
            padding: 5px;
        }
        .breadcrumb {
            padding: 15px 0;
            font-size: 0.9rem;
            color: #666;
        }
        .breadcrumb a {
            color: var(--primary-color);
            text-decoration: none;
        }
        .breadcrumb a:hover {
            text-decoration: underline;
        }
        .breadcrumb span {
            color: #999;
        }
        main {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 40px;
            padding: 40px 0;
        }
        .article-content {
            background-color: white;
            border-radius: 12px;
            padding: 40px;
            box-shadow: var(--shadow);
        }
        aside {
            background-color: white;
            border-radius: 12px;
            padding: 25px;
            box-shadow: var(--shadow);
            align-self: start;
            position: sticky;
            top: 100px;
        }
        h1 {
            color: var(--primary-color);
            font-size: 2.8rem;
            margin-bottom: 20px;
            line-height: 1.2;
            border-bottom: 3px solid var(--secondary-color);
            padding-bottom: 15px;
        }
        h2 {
            color: var(--accent-color);
            font-size: 2rem;
            margin: 40px 0 20px;
            padding-bottom: 10px;
            border-bottom: 2px solid #eee;
        }
        h3 {
            color: var(--primary-color);
            font-size: 1.6rem;
            margin: 30px 0 15px;
        }
        h4 {
            color: #555;
            font-size: 1.3rem;
            margin: 25px 0 12px;
        }
        p {
            margin-bottom: 22px;
            text-align: justify;
        }
        .lead {
            font-size: 1.2rem;
            font-weight: 500;
            color: var(--dark-color);
            background-color: #f9f5ed;
            padding: 20px;
            border-left: 5px solid var(--secondary-color);
            border-radius: 0 8px 8px 0;
            margin-bottom: 30px;
        }
        .highlight {
            background-color: #fff9e6;
            padding: 4px 8px;
            border-radius: 4px;
            font-weight: 600;
            color: #b8860b;
        }
        .article-meta {
            display: flex;
            justify-content: space-between;
            align-items: center;
            color: #777;
            font-size: 0.95rem;
            margin-bottom: 30px;
            padding-bottom: 15px;
            border-bottom: 1px solid #eee;
        }
        .update-time {
            color: var(--primary-color);
            font-weight: 500;
        }
        .article-img {
            width: 100%;
            max-height: 500px;
            object-fit: cover;
            border-radius: 10px;
            margin: 25px 0;
            box-shadow: 0 6px 15px rgba(0, 0, 0, 0.1);
            border: 1px solid #ddd;
        }
        .img-caption {
            text-align: center;
            font-style: italic;
            color: #666;
            margin-top: -15px;
            margin-bottom: 30px;
            font-size: 0.95rem;
        }
        ul, ol {
            margin-left: 25px;
            margin-bottom: 25px;
        }
        li {
            margin-bottom: 10px;
        }
        blockquote {
            border-left: 5px solid var(--secondary-color);
            padding-left: 25px;
            margin: 30px 0;
            font-style: italic;
            color: #555;
            background-color: #f9f9f9;
            padding: 25px;
            border-radius: 0 10px 10px 0;
        }
        .interactive-box {
            background: linear-gradient(135deg, #f5f1e8 0%, #e8dfca 100%);
            border: 2px dashed var(--secondary-color);
            border-radius: 12px;
            padding: 25px;
            margin: 30px 0;
        }
        .interactive-box h3 {
            margin-top: 0;
            color: var(--accent-color);
        }
        .resource-links {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
            gap: 15px;
            margin: 30px 0;
        }
        .resource-link {
            background-color: white;
            border: 1px solid #ddd;
            border-radius: 8px;
            padding: 15px;
            text-decoration: none;
            color: var(--text-color);
            transition: var(--transition);
            display: block;
        }
        .resource-link:hover {
            border-color: var(--primary-color);
            transform: translateY(-5px);
            box-shadow: 0 10px 20px rgba(0, 0, 0, 0.08);
        }
        .resource-link i {
            color: var(--primary-color);
            margin-right: 10px;
        }
        .sidebar-widget {
            margin-bottom: 30px;
            padding-bottom: 25px;
            border-bottom: 1px solid #eee;
        }
        .sidebar-widget:last-child {
            border-bottom: none;
            margin-bottom: 0;
            padding-bottom: 0;
        }
        .sidebar-widget h3 {
            font-size: 1.4rem;
            margin-bottom: 20px;
            color: var(--accent-color);
            padding-bottom: 10px;
            border-bottom: 2px solid #eee;
        }
        .popular-links li {
            margin-bottom: 15px;
            padding-bottom: 15px;
            border-bottom: 1px dotted #eee;
        }
        .popular-links a {
            text-decoration: none;
            color: var(--text-color);
            display: block;
            transition: var(--transition);
        }
        .popular-links a:hover {
            color: var(--primary-color);
            padding-left: 5px;
        }
        .popular-links i {
            color: var(--secondary-color);
            margin-right: 10px;
        }
        .user-interaction {
            margin-top: 50px;
            padding-top: 30px;
            border-top: 2px solid #eee;
        }
        .rating-form, .comment-form {
            background-color: #f9f9f9;
            padding: 25px;
            border-radius: 10px;
            margin-bottom: 30px;
        }
        .rating-form h3, .comment-form h3 {
            margin-top: 0;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .stars {
            display: flex;
            gap: 5px;
            margin: 15px 0 25px;
        }
        .star {
            font-size: 2rem;
            color: #ddd;
            cursor: pointer;
            transition: var(--transition);
        }
        .star:hover, .star.active {
            color: #ffc107;
        }
        .form-group {
            margin-bottom: 20px;
        }
        .form-group label {
            display: block;
            margin-bottom: 8px;
            font-weight: 500;
        }
        .form-group input, .form-group textarea, .form-group select {
            width: 100%;
            padding: 12px 15px;
            border: 1px solid #ddd;
            border-radius: 6px;
            font-family: inherit;
            font-size: 1rem;
            transition: var(--transition);
        }
        .form-group input:focus, .form-group textarea:focus, .form-group select:focus {
            border-color: var(--primary-color);
            outline: none;
            box-shadow: 0 0 0 3px rgba(42, 92, 61, 0.1);
        }
        .btn {
            background-color: var(--primary-color);
            color: white;
            border: none;
            padding: 14px 30px;
            border-radius: 6px;
            font-size: 1rem;
            font-weight: 600;
            cursor: pointer;
            transition: var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 10px;
        }
        .btn:hover {
            background-color: var(--accent-color);
            transform: translateY(-3px);
            box-shadow: 0 7px 14px rgba(0, 0, 0, 0.1);
        }
        footer {
            background-color: var(--dark-color);
            color: #ddd;
            padding: 50px 0 20px;
            margin-top: 60px;
        }
        .footer-content {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 40px;
            margin-bottom: 40px;
        }
        .footer-logo {
            font-family: 'Georgia', serif;
            font-size: 2rem;
            font-weight: bold;
            color: white;
            text-decoration: none;
            margin-bottom: 20px;
            display: inline-block;
        }
        .footer-about p {
            color: #aaa;
        }
        .footer-links h4, .footer-contact h4 {
            color: white;
            font-size: 1.3rem;
            margin-bottom: 25px;
            padding-bottom: 10px;
            border-bottom: 2px solid var(--secondary-color);
        }
        .footer-links ul {
            list-style: none;
            margin-left: 0;
        }
        .footer-links li {
            margin-bottom: 12px;
        }
        .footer-links a {
            color: #aaa;
            text-decoration: none;
            transition: var(--transition);
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .footer-links a:hover {
            color: var(--secondary-color);
            padding-left: 5px;
        }
        .footer-contact p {
            display: flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 15px;
            color: #aaa;
        }
        friend-link {
            display: block;
            background-color: rgba(255, 255, 255, 0.05);
            padding: 15px;
            border-radius: 8px;
            margin: 10px 0;
        }
        friend-link a {
            color: var(--secondary-color);
            text-decoration: none;
            font-weight: 500;
        }
        friend-link a:hover {
            text-decoration: underline;
        }
        .copyright {
            text-align: center;
            padding-top: 30px;
            border-top: 1px solid #444;
            color: #aaa;
            font-size: 0.9rem;
        }
        @media (max-width: 992px) {
            main {
                grid-template-columns: 1fr;
            }
            aside {
                position: static;
            }
        }
        @media (max-width: 768px) {
            .header-top {
                flex-direction: column;
                gap: 20px;
            }
            .search-form {
                max-width: 100%;
            }
            nav ul {
                flex-direction: column;
                display: none;
                border-radius: 0;
            }
            nav.active ul {
                display: flex;
            }
            nav li {
                width: 100%;
            }
            nav a {
                border-right: none;
                border-bottom: 1px solid rgba(255, 255, 255, 0.1);
                text-align: left;
                padding-left: 30px;
            }
            .hamburger {
                display: block;
                align-self: flex-end;
                margin-top: -50px;
            }
            h1 {
                font-size: 2.2rem;
            }
            h2 {
                font-size: 1.8rem;
            }
            .article-content {
                padding: 25px;
            }
            .footer-content {
                grid-template-columns: 1fr;
                gap: 30px;
            }
        }
        @media (max-width: 480px) {
            .container {
                padding: 0 15px;
            }
            h1 {
                font-size: 1.9rem;
            }
            .lead {
                font-size: 1.1rem;
                padding: 15px;
            }
            .resource-links {
                grid-template-columns: 1fr;
            }
        }