:root {
            --primary-dark: #0a2f1c;
            --primary-green: #1a5330;
            --accent-gold: #d4af37;
            --accent-light: #e8f5e9;
            --text-dark: #222;
            --text-light: #f8f8f8;
            --gray-bg: #f5f7fa;
            --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-dark);
            background-color: #fff;
            overflow-x: hidden;
        }
        a {
            color: var(--primary-green);
            text-decoration: none;
            transition: var(--transition);
        }
        a:hover {
            color: var(--accent-gold);
        }
        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: var(--shadow);
        }
        .header-content {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .my-logo {
            font-size: 2.2rem;
            font-weight: 800;
            color: var(--accent-gold);
            font-family: Georgia, serif;
        }
        .my-logo span {
            color: var(--text-light);
        }
        .my-logo:hover {
            color: var(--accent-gold);
            opacity: 0.9;
        }
        .breadcrumb {
            font-size: 0.9rem;
            color: #aaa;
            margin-top: 0.5rem;
        }
        .breadcrumb a {
            color: #ccc;
        }
        .nav-desktop {
            display: flex;
            gap: 2rem;
        }
        @media (max-width: 768px) {
            .nav-desktop {
                display: none;
            }
        }
        .nav-desktop a {
            color: var(--text-light);
            font-weight: 500;
            padding: 0.5rem 0;
            border-bottom: 2px solid transparent;
        }
        .nav-desktop a:hover, .nav-desktop a.active {
            color: var(--accent-gold);
            border-bottom-color: var(--accent-gold);
        }
        .hamburger {
            display: none;
            background: none;
            border: none;
            color: var(--text-light);
            font-size: 1.8rem;
            cursor: pointer;
            padding: 5px;
        }
        @media (max-width: 768px) {
            .hamburger {
                display: block;
            }
        }
        .nav-mobile {
            display: none;
            flex-direction: column;
            background-color: var(--primary-green);
            position: absolute;
            top: 100%;
            left: 0;
            width: 100%;
            padding: 1rem;
            box-shadow: var(--shadow);
            z-index: 999;
        }
        .nav-mobile.active {
            display: flex;
        }
        .nav-mobile a {
            color: var(--text-light);
            padding: 0.8rem 1rem;
            border-bottom: 1px solid rgba(255,255,255,0.1);
        }
        .nav-mobile a:hover {
            background-color: rgba(255,255,255,0.05);
            color: var(--accent-gold);
        }
        .search-box {
            margin: 2rem 0 1rem;
            background-color: var(--gray-bg);
            padding: 1.5rem;
            border-radius: 8px;
            text-align: center;
        }
        .search-form {
            display: flex;
            max-width: 600px;
            margin: 0 auto;
        }
        .search-input {
            flex: 1;
            padding: 0.8rem 1rem;
            border: 1px solid #ccc;
            border-radius: 4px 0 0 4px;
            font-size: 1rem;
        }
        .search-button {
            background-color: var(--primary-green);
            color: white;
            border: none;
            padding: 0.8rem 1.5rem;
            border-radius: 0 4px 4px 0;
            cursor: pointer;
            font-weight: 600;
        }
        .search-button:hover {
            background-color: var(--primary-dark);
        }
        .main-content {
            padding: 2rem 0;
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 3rem;
        }
        @media (max-width: 992px) {
            .main-content {
                grid-template-columns: 1fr;
            }
        }
        .article-content {
            background-color: #fff;
            padding: 0;
        }
        .sidebar {
            background-color: var(--gray-bg);
            padding: 1.5rem;
            border-radius: 8px;
            align-self: start;
            position: sticky;
            top: 120px;
        }
        .sidebar h3 {
            color: var(--primary-dark);
            border-bottom: 2px solid var(--accent-gold);
            padding-bottom: 0.5rem;
            margin-bottom: 1.5rem;
        }
        .internal-links ul {
            list-style: none;
        }
        .internal-links li {
            margin-bottom: 0.8rem;
        }
        h1 {
            font-size: 2.8rem;
            color: var(--primary-dark);
            margin-bottom: 1.5rem;
            line-height: 1.2;
            border-bottom: 3px solid var(--accent-gold);
            padding-bottom: 1rem;
        }
        @media (max-width: 768px) {
            h1 {
                font-size: 2.2rem;
            }
        }
        h2 {
            font-size: 2rem;
            color: var(--primary-green);
            margin: 2.5rem 0 1rem;
            padding-top: 1rem;
        }
        h3 {
            font-size: 1.6rem;
            color: var(--primary-dark);
            margin: 2rem 0 1rem;
        }
        h4 {
            font-size: 1.3rem;
            color: #444;
            margin: 1.5rem 0 0.8rem;
        }
        p {
            margin-bottom: 1.2rem;
            text-align: justify;
        }
        .lead {
            font-size: 1.2rem;
            font-weight: 500;
            color: #333;
            background-color: var(--accent-light);
            padding: 1.5rem;
            border-left: 4px solid var(--accent-gold);
            margin-bottom: 2rem;
            border-radius: 0 4px 4px 0;
        }
        .highlight {
            background-color: #fff9e6;
            padding: 1.5rem;
            border-radius: 8px;
            border: 1px dashed var(--accent-gold);
            margin: 1.5rem 0;
        }
        .emoji {
            font-size: 1.2em;
            margin-right: 5px;
        }
        strong {
            color: var(--primary-dark);
            font-weight: 700;
        }
        .featured-image {
            margin: 2.5rem 0;
            text-align: center;
        }
        .featured-image img {
            border-radius: 8px;
            box-shadow: var(--shadow);
            margin: 0 auto;
        }
        .image-caption {
            font-style: italic;
            color: #666;
            margin-top: 0.5rem;
            font-size: 0.95rem;
        }
        .interactive-badge {
            display: inline-block;
            background-color: var(--primary-green);
            color: white;
            padding: 0.3rem 0.8rem;
            border-radius: 20px;
            font-size: 0.85rem;
            font-weight: 600;
            margin-right: 0.5rem;
            margin-bottom: 0.5rem;
            cursor: default;
        }
        .interactive-badge:hover {
            background-color: var(--primary-dark);
            transform: translateY(-2px);
            transition: var(--transition);
        }
        .user-feedback {
            background-color: var(--gray-bg);
            padding: 2rem;
            border-radius: 8px;
            margin: 3rem 0;
        }
        .rating-form, .comment-form {
            margin-top: 1.5rem;
        }
        .stars {
            display: flex;
            gap: 5px;
            margin: 0.5rem 0 1rem;
        }
        .star {
            color: #ddd;
            font-size: 1.8rem;
            cursor: pointer;
            transition: var(--transition);
        }
        .star:hover,
        .star.active {
            color: var(--accent-gold);
        }
        .form-group {
            margin-bottom: 1.2rem;
        }
        label {
            display: block;
            margin-bottom: 0.5rem;
            font-weight: 600;
            color: #444;
        }
        input, textarea, select {
            width: 100%;
            padding: 0.8rem;
            border: 1px solid #ccc;
            border-radius: 4px;
            font-family: inherit;
            font-size: 1rem;
        }
        textarea {
            min-height: 120px;
            resize: vertical;
        }
        .submit-btn {
            background-color: var(--primary-green);
            color: white;
            border: none;
            padding: 0.8rem 1.8rem;
            border-radius: 4px;
            cursor: pointer;
            font-weight: 600;
            font-size: 1rem;
        }
        .submit-btn:hover {
            background-color: var(--primary-dark);
        }
        .site-footer {
            background-color: var(--primary-dark);
            color: var(--text-light);
            padding: 3rem 0 1.5rem;
            margin-top: 3rem;
        }
        .footer-content {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 2rem;
            margin-bottom: 2rem;
        }
        @media (max-width: 768px) {
            .footer-content {
                grid-template-columns: 1fr;
                text-align: center;
            }
        }
        .footer-logo {
            font-size: 2rem;
            font-weight: 800;
            color: var(--accent-gold);
            margin-bottom: 1rem;
        }
        friend-link {
            display: block;
            margin-bottom: 0.8rem;
        }
        friend-link a {
            color: #ccc;
        }
        friend-link a:hover {
            color: var(--accent-gold);
        }
        .copyright {
            text-align: center;
            padding-top: 1.5rem;
            border-top: 1px solid rgba(255,255,255,0.1);
            font-size: 0.9rem;
            color: #aaa;
        }
        .update-time {
            background-color: #f0f8ff;
            padding: 1rem;
            border-radius: 4px;
            font-size: 0.9rem;
            color: #555;
            margin: 2rem 0;
            display: inline-block;
        }
        .text-center {
            text-align: center;
        }
        .mt-2 { margin-top: 2rem; }
        .mb-2 { margin-bottom: 2rem; }