:root {
            --primary-dark: #0d3b1e;
            --primary-medium: #1e6b3a;
            --primary-light: #2e8b57;
            --accent-gold: #daa520;
            --accent-bronze: #cd7f32;
            --text-light: #f5f5dc;
            --text-dark: #2f4f4f;
            --bg-light: #f8f8e6;
            --bg-card: #ffffff;
            --shadow: rgba(0, 0, 0, 0.15);
            --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-dark);
            background-color: var(--bg-light);
            background-image: linear-gradient(to bottom, #e6f3e6 0%, #f8f8e6 100%);
        }
        a {
            color: var(--primary-medium);
            text-decoration: none;
            transition: var(--transition);
        }
        a:hover {
            color: var(--accent-gold);
            text-decoration: underline;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        .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;
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: 0 4px 12px var(--shadow);
        }
        .header-container {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .my-logo {
            font-family: fantasy, serif;
            font-size: 2.2rem;
            font-weight: bold;
            color: var(--accent-gold);
            text-shadow: 2px 2px 4px rgba(0,0,0,0.5);
            letter-spacing: 1px;
        }
        .my-logo:hover {
            color: var(--text-light);
            text-decoration: none;
        }
        .main-nav ul {
            display: flex;
            list-style: none;
            gap: 2rem;
        }
        .main-nav a {
            color: var(--text-light);
            font-weight: 600;
            padding: 0.5rem 0.75rem;
            border-radius: 4px;
        }
        .main-nav a:hover, .main-nav a.active {
            background-color: var(--primary-light);
            text-decoration: none;
        }
        .hamburger {
            display: none;
            font-size: 1.8rem;
            background: none;
            border: none;
            color: var(--text-light);
            cursor: pointer;
        }
        .breadcrumb {
            background-color: #e9f5e9;
            padding: 0.75rem 0;
            font-size: 0.9rem;
            margin-bottom: 1.5rem;
        }
        .breadcrumb ol {
            display: flex;
            flex-wrap: wrap;
            list-style: none;
        }
        .breadcrumb li:not(:last-child)::after {
            content: ">";
            margin: 0 10px;
            color: var(--primary-medium);
        }
        .breadcrumb a {
            color: var(--primary-dark);
        }
        .main-content {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 2.5rem;
            padding: 2rem 0;
        }
        @media (max-width: 768px) {
            .main-content {
                grid-template-columns: 1fr;
            }
        }
        .article-area {
            background-color: var(--bg-card);
            border-radius: 12px;
            padding: 2.5rem;
            box-shadow: 0 6px 15px var(--shadow);
        }
        .sidebar {
            background-color: var(--bg-card);
            border-radius: 12px;
            padding: 1.5rem;
            box-shadow: 0 6px 15px var(--shadow);
            align-self: start;
            position: sticky;
            top: 100px;
        }
        .article-header {
            border-bottom: 3px solid var(--accent-bronze);
            padding-bottom: 1.5rem;
            margin-bottom: 2.5rem;
        }
        .article-header h1 {
            color: var(--primary-dark);
            font-size: 2.8rem;
            margin-bottom: 0.5rem;
            line-height: 1.2;
        }
        .meta-info {
            display: flex;
            justify-content: space-between;
            flex-wrap: wrap;
            color: #666;
            font-size: 0.9rem;
            margin-top: 1rem;
        }
        .update-time {
            color: var(--primary-medium);
            font-weight: bold;
        }
        .article-section {
            margin-bottom: 3rem;
        }
        .article-section h2 {
            color: var(--primary-medium);
            font-size: 2rem;
            margin-bottom: 1rem;
            padding-bottom: 0.5rem;
            border-bottom: 2px dashed var(--primary-light);
        }
        .article-section h3 {
            color: var(--primary-dark);
            font-size: 1.6rem;
            margin: 1.5rem 0 1rem;
        }
        .article-section h4 {
            color: var(--accent-bronze);
            font-size: 1.3rem;
            margin: 1.2rem 0 0.8rem;
        }
        .article-section p {
            margin-bottom: 1.2rem;
            text-align: justify;
        }
        .highlight-box {
            background: linear-gradient(to right, #f0f8f0, #e6f3e6);
            border-left: 5px solid var(--accent-gold);
            padding: 1.5rem;
            margin: 1.5rem 0;
            border-radius: 0 8px 8px 0;
        }
        .featured-image {
            width: 100%;
            border-radius: 10px;
            overflow: hidden;
            margin: 2rem 0;
            box-shadow: 0 8px 20px var(--shadow);
        }
        .featured-image figcaption {
            text-align: center;
            font-style: italic;
            padding: 0.5rem;
            color: #666;
            background-color: #f9f9f9;
        }
        .interactive-module {
            background: linear-gradient(135deg, #f8f8e6, #e6f3e6);
            border: 1px solid var(--primary-light);
            border-radius: 10px;
            padding: 1.5rem;
            margin: 2rem 0;
        }
        .interactive-module h3 {
            color: var(--primary-dark);
            margin-top: 0;
        }
        .form-group {
            margin-bottom: 1rem;
        }
        .form-group label {
            display: block;
            margin-bottom: 0.5rem;
            font-weight: 600;
        }
        .form-control {
            width: 100%;
            padding: 0.75rem;
            border: 1px solid #ccc;
            border-radius: 6px;
            font-size: 1rem;
            transition: var(--transition);
        }
        .form-control:focus {
            border-color: var(--primary-medium);
            outline: none;
            box-shadow: 0 0 0 3px rgba(30, 107, 58, 0.2);
        }
        .btn {
            display: inline-block;
            background: linear-gradient(to bottom, var(--primary-medium), var(--primary-dark));
            color: white;
            padding: 0.8rem 1.8rem;
            border: none;
            border-radius: 6px;
            font-weight: bold;
            cursor: pointer;
            transition: var(--transition);
        }
        .btn:hover {
            background: linear-gradient(to bottom, var(--primary-light), var(--primary-medium));
            text-decoration: none;
            transform: translateY(-2px);
            box-shadow: 0 4px 8px var(--shadow);
        }
        .rating-stars {
            display: flex;
            gap: 5px;
            margin: 0.5rem 0;
        }
        .star {
            font-size: 1.5rem;
            color: #ddd;
            cursor: pointer;
            transition: var(--transition);
        }
        .star:hover,
        .star.active {
            color: var(--accent-gold);
        }
        .sidebar-section {
            margin-bottom: 2rem;
        }
        .sidebar-section h3 {
            font-size: 1.3rem;
            color: var(--primary-dark);
            padding-bottom: 0.5rem;
            border-bottom: 1px solid #eee;
            margin-bottom: 1rem;
        }
        .quick-links {
            list-style: none;
        }
        .quick-links li {
            margin-bottom: 0.75rem;
            padding-left: 1.2rem;
            position: relative;
        }
        .quick-links li::before {
            content: "➜";
            position: absolute;
            left: 0;
            color: var(--primary-light);
        }
        .tag-cloud {
            display: flex;
            flex-wrap: wrap;
            gap: 0.5rem;
        }
        .tag {
            background-color: #e9f5e9;
            padding: 0.4rem 0.8rem;
            border-radius: 20px;
            font-size: 0.85rem;
            transition: var(--transition);
        }
        .tag:hover {
            background-color: var(--primary-light);
            color: white;
        }
        .site-footer {
            background-color: var(--primary-dark);
            color: var(--text-light);
            padding: 3rem 0 1.5rem;
            margin-top: 3rem;
        }
        .footer-container {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 2rem;
        }
        .footer-section h3 {
            color: var(--accent-gold);
            margin-bottom: 1.5rem;
            font-size: 1.3rem;
        }
        .footer-links {
            list-style: none;
        }
        .footer-links li {
            margin-bottom: 0.75rem;
        }
        .footer-links a {
            color: #ccc;
        }
        .footer-links a:hover {
            color: var(--accent-gold);
            padding-left: 5px;
        }
        friend-link {
            display: block;
            background-color: rgba(255,255,255,0.05);
            padding: 1rem;
            border-radius: 6px;
            margin-bottom: 1rem;
            border-left: 4px solid var(--accent-gold);
        }
        .copyright {
            text-align: center;
            padding-top: 2rem;
            margin-top: 2rem;
            border-top: 1px solid rgba(255,255,255,0.1);
            font-size: 0.9rem;
            color: #aaa;
        }
        @media (max-width: 992px) {
            .article-header h1 { font-size: 2.3rem; }
            .article-section h2 { font-size: 1.8rem; }
        }
        @media (max-width: 768px) {
            .hamburger { display: block; }
            .main-nav {
                position: fixed;
                top: 70px;
                left: -100%;
                width: 80%;
                height: calc(100vh - 70px);
                background-color: var(--primary-dark);
                flex-direction: column;
                padding: 2rem;
                transition: left 0.4s ease;
                box-shadow: 5px 0 15px rgba(0,0,0,0.2);
            }
            .main-nav.active {
                left: 0;
            }
            .main-nav ul {
                flex-direction: column;
                gap: 1rem;
            }
            .header-container {
                flex-wrap: wrap;
            }
        }
        @media (max-width: 480px) {
            .article-area { padding: 1.5rem; }
            .article-header h1 { font-size: 1.8rem; }
            .meta-info { flex-direction: column; gap: 0.5rem; }
        }