* { margin: 0; padding: 0; box-sizing: border-box; }
        html { scroll-behavior: smooth; }
        body {
            font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
            line-height: 1.7;
            color: #333;
            background-color: #fefefe;
            background-image: linear-gradient(to bottom right, #f9f7f7 0%, #f0f4f8 100%);
            max-width: 100vw;
            overflow-x: hidden;
        }
        img { max-width: 100%; height: auto; display: block; }
        a { color: #2a6e3f; text-decoration: none; transition: color 0.3s ease, background-color 0.3s ease; }
        a:hover { color: #1e4d2a; }
        ul, ol { padding-left: 2em; margin-bottom: 1.5rem; }
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        .visually-hidden {
            position: absolute;
            width: 1px;
            height: 1px;
            padding: 0;
            margin: -1px;
            overflow: hidden;
            clip: rect(0, 0, 0, 0);
            white-space: nowrap;
            border: 0;
        }
        h1, h2, h3, h4 { color: #1a472a; font-weight: 700; line-height: 1.2; margin-bottom: 1rem; }
        h1 { font-size: clamp(2.5rem, 5vw, 3.5rem); margin-top: 1.5rem; }
        h2 { font-size: clamp(1.8rem, 4vw, 2.5rem); margin-top: 2.5rem; padding-bottom: 0.5rem; border-bottom: 2px solid #e0e0e0; }
        h3 { font-size: clamp(1.5rem, 3vw, 1.8rem); margin-top: 2rem; }
        h4 { font-size: 1.3rem; margin-top: 1.5rem; color: #2d6a4f; }
        p { margin-bottom: 1.5rem; }
        .lead { font-size: 1.3rem; font-weight: 300; color: #555; }
        .highlight { background-color: #e9f7ef; padding: 0.2em 0.4em; border-radius: 3px; }
        strong, b { font-weight: 700; color: #1a472a; }
        em { font-style: italic; }
        blockquote {
            border-left: 4px solid #2a6e3f;
            padding-left: 1.5rem;
            margin: 2rem 0;
            font-style: italic;
            color: #555;
            background-color: #f9f9f9;
            padding: 1.5rem;
            border-radius: 0 8px 8px 0;
        }
        .site-header {
            background-color: #1a472a;
            color: white;
            padding: 1rem 0;
            box-shadow: 0 4px 12px rgba(0,0,0,0.1);
            position: sticky;
            top: 0;
            z-index: 1000;
        }
        .header-container {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .my-logo {
            font-family: Georgia, serif;
            font-size: 2rem;
            font-weight: bold;
            color: #fff;
            text-decoration: none;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .my-logo i { color: #95d5b2; }
        .my-logo:hover { color: #d4edda; }
        .menu-toggle {
            display: none;
            background: none;
            border: none;
            color: white;
            font-size: 1.8rem;
            cursor: pointer;
            padding: 0.5rem;
        }
        .main-nav ul {
            display: flex;
            list-style: none;
            gap: 2rem;
        }
        .main-nav a {
            color: #d4edda;
            font-weight: 500;
            padding: 0.5rem 0.75rem;
            border-radius: 4px;
            display: block;
        }
        .main-nav a:hover,
        .main-nav a:focus {
            background-color: #2d6a4f;
            color: white;
        }
        .breadcrumb {
            padding: 1rem 0;
            background-color: #f8f9fa;
            border-bottom: 1px solid #dee2e6;
            font-size: 0.9rem;
        }
        .breadcrumb ol {
            display: flex;
            flex-wrap: wrap;
            list-style: none;
            padding-left: 0;
            margin: 0;
        }
        .breadcrumb li:not(:last-child)::after {
            content: "/";
            margin: 0 0.75rem;
            color: #6c757d;
        }
        .breadcrumb a { color: #2a6e3f; }
        .breadcrumb a:hover { text-decoration: underline; }
        main {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 3rem;
            padding: 2rem 0;
        }
        @media (max-width: 992px) {
            main { grid-template-columns: 1fr; }
        }
        .article-content {
            background: white;
            padding: 2.5rem;
            border-radius: 12px;
            box-shadow: 0 6px 20px rgba(0,0,0,0.05);
        }
        .sidebar {
            background: white;
            padding: 2rem;
            border-radius: 12px;
            box-shadow: 0 6px 20px rgba(0,0,0,0.05);
            align-self: start;
            position: sticky;
            top: 120px;
        }
        .interactive-module {
            background: #f8f9fa;
            border: 1px solid #dee2e6;
            border-radius: 10px;
            padding: 1.5rem;
            margin: 2.5rem 0;
        }
        .module-title { margin-top: 0; color: #1a472a; font-size: 1.5rem; }
        form label {
            display: block;
            margin-bottom: 0.5rem;
            font-weight: 600;
            color: #495057;
        }
        form input,
        form textarea,
        form select {
            width: 100%;
            padding: 0.75rem;
            margin-bottom: 1rem;
            border: 1px solid #ced4da;
            border-radius: 6px;
            font-size: 1rem;
            transition: border-color 0.3s;
        }
        form input:focus,
        form textarea:focus,
        form select:focus {
            outline: none;
            border-color: #2a6e3f;
            box-shadow: 0 0 0 3px rgba(42, 110, 63, 0.15);
        }
        .btn {
            display: inline-block;
            background-color: #2a6e3f;
            color: white;
            padding: 0.75rem 1.5rem;
            border: none;
            border-radius: 6px;
            cursor: pointer;
            font-weight: 600;
            font-size: 1rem;
            transition: background-color 0.3s, transform 0.2s;
        }
        .btn:hover {
            background-color: #1e4d2a;
            transform: translateY(-2px);
        }
        .btn:active { transform: translateY(0); }
        .rating-widget {
            display: flex;
            gap: 0.5rem;
            margin: 1rem 0;
        }
        .star {
            font-size: 1.8rem;
            color: #ddd;
            cursor: pointer;
            transition: color 0.2s;
        }
        .star:hover,
        .star.active { color: #ffc107; }
        .article-image {
            margin: 2.5rem auto;
            text-align: center;
            max-width: 800px;
        }
        .article-image img {
            border-radius: 10px;
            box-shadow: 0 8px 25px rgba(0,0,0,0.1);
            border: 1px solid #eee;
        }
        .caption {
            font-style: italic;
            color: #666;
            font-size: 0.9rem;
            margin-top: 0.75rem;
            padding: 0 1rem;
        }
        .widget { margin-bottom: 2.5rem; }
        .widget-title {
            font-size: 1.3rem;
            color: #1a472a;
            margin-bottom: 1rem;
            padding-bottom: 0.5rem;
            border-bottom: 1px solid #e9ecef;
        }
        .related-links ul {
            list-style: none;
            padding-left: 0;
        }
        .related-links li { margin-bottom: 0.75rem; }
        .related-links a {
            display: block;
            padding: 0.75rem;
            background-color: #f8f9fa;
            border-left: 4px solid #2a6e3f;
            border-radius: 0 5px 5px 0;
        }
        .related-links a:hover {
            background-color: #e9f7ef;
            border-left-color: #1e4d2a;
        }
        .update-info {
            font-size: 0.9rem;
            color: #6c757d;
            background-color: #f8f9fa;
            padding: 1rem;
            border-radius: 8px;
            text-align: center;
        }
        .site-footer {
            background-color: #1a472a;
            color: #d4edda;
            padding: 3rem 0 1.5rem;
            margin-top: 3rem;
        }
        .footer-container {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 2rem;
            margin-bottom: 2rem;
        }
        .footer-logo {
            font-family: Georgia, serif;
            font-size: 2rem;
            font-weight: bold;
            color: white;
            margin-bottom: 1rem;
            display: block;
        }
        .footer-nav ul {
            list-style: none;
            padding-left: 0;
        }
        .footer-nav li { margin-bottom: 0.75rem; }
        .footer-nav a {
            color: #b7e4c7;
            padding: 0.25rem 0;
            display: inline-block;
        }
        .footer-nav a:hover { color: white; text-decoration: underline; }
        friend-link {
            display: block;
            margin: 0.5rem 0;
        }
        friend-link a {
            color: #95d5b2;
            font-weight: 500;
        }
        friend-link a:hover { color: white; }
        .copyright {
            text-align: center;
            padding-top: 1.5rem;
            border-top: 1px solid #2d6a4f;
            font-size: 0.9rem;
            color: #95d5b2;
        }
        @media (max-width: 768px) {
            .header-container { flex-wrap: wrap; }
            .menu-toggle { display: block; }
            .main-nav {
                width: 100%;
                max-height: 0;
                overflow: hidden;
                transition: max-height 0.5s ease;
            }
            .main-nav.active { max-height: 500px; margin-top: 1rem; }
            .main-nav ul {
                flex-direction: column;
                gap: 0;
            }
            .main-nav a {
                padding: 0.75rem 0;
                border-bottom: 1px solid rgba(255,255,255,0.1);
            }
            .article-content, .sidebar { padding: 1.5rem; }
            h1 { font-size: 2.2rem; }
            h2 { font-size: 1.8rem; }
        }
        @keyframes fadeIn {
            from { opacity: 0; transform: translateY(20px); }
            to { opacity: 1; transform: translateY(0); }
        }
        .article-content, .sidebar {
            animation: fadeIn 0.8s ease-out;
        }
        .pulse {
            animation: pulse 2s infinite;
        }
        @keyframes pulse {
            0% { box-shadow: 0 0 0 0 rgba(42, 110, 63, 0.4); }
            70% { box-shadow: 0 0 0 10px rgba(42, 110, 63, 0); }
            100% { box-shadow: 0 0 0 0 rgba(42, 110, 63, 0); }
        }