* { margin: 0; padding: 0; box-sizing: border-box; }
        html { scroll-behavior: smooth; }
        body {
            font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
            line-height: 1.7;
            color: #333;
            background-color: #f9f9f9;
            max-width: 100vw;
            overflow-x: hidden;
        }
        img { max-width: 100%; height: auto; display: block; }
        .site-header {
            background: linear-gradient(135deg, #6aaa64 0%, #2e7d32 100%);
            color: white;
            padding: 1rem 2rem;
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: 0 4px 12px rgba(0,0,0,0.1);
        }
        .header-container {
            max-width: 1300px;
            margin: 0 auto;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
        }
        .my-logo {
            font-family: 'Georgia', serif;
            font-size: 2.8rem;
            font-weight: 900;
            text-decoration: none;
            color: white;
            letter-spacing: 3px;
            text-shadow: 2px 2px 4px rgba(0,0,0,0.3);
            transition: transform 0.3s ease;
        }
        .my-logo:hover {
            transform: scale(1.05);
            color: #ffeb3b;
        }
        .main-nav ul {
            display: flex;
            list-style: none;
            gap: 2rem;
            flex-wrap: wrap;
        }
        .main-nav a {
            color: white;
            text-decoration: none;
            font-weight: 600;
            font-size: 1.1rem;
            padding: 0.5rem 1rem;
            border-radius: 4px;
            transition: all 0.3s ease;
        }
        .main-nav a:hover, .main-nav a:focus {
            background-color: rgba(255, 255, 255, 0.2);
            text-decoration: underline;
        }
        .hamburger {
            display: none;
            background: none;
            border: none;
            color: white;
            font-size: 2rem;
            cursor: pointer;
            padding: 0.5rem;
        }
        .breadcrumb {
            background-color: #e9f5e9;
            padding: 0.8rem 2rem;
            font-size: 0.95rem;
            border-bottom: 1px solid #d0e6d0;
        }
        .breadcrumb a {
            color: #2e7d32;
            text-decoration: none;
        }
        .breadcrumb a:hover { text-decoration: underline; }
        .main-content {
            max-width: 1200px;
            margin: 2rem auto;
            padding: 0 2rem;
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 3rem;
        }
        article {
            background: white;
            padding: 3rem;
            border-radius: 12px;
            box-shadow: 0 5px 20px rgba(0,0,0,0.05);
        }
        aside {
            background: white;
            padding: 2rem;
            border-radius: 12px;
            box-shadow: 0 5px 15px rgba(0,0,0,0.05);
            align-self: start;
            position: sticky;
            top: 120px;
        }
        h1 {
            font-size: 3.2rem;
            color: #2e7d32;
            margin-bottom: 1.5rem;
            line-height: 1.2;
            border-bottom: 4px solid #c8e6c9;
            padding-bottom: 1rem;
        }
        h2 {
            font-size: 2.2rem;
            color: #388e3c;
            margin: 2.5rem 0 1.5rem;
            padding-top: 1rem;
        }
        h3 {
            font-size: 1.7rem;
            color: #43a047;
            margin: 2rem 0 1rem;
        }
        h4 {
            font-size: 1.3rem;
            color: #4caf50;
            margin: 1.5rem 0 0.8rem;
        }
        p {
            margin-bottom: 1.5rem;
            font-size: 1.125rem;
            text-align: justify;
        }
        .lead {
            font-size: 1.4rem;
            font-weight: 500;
            color: #555;
            background-color: #f1f8e9;
            padding: 1.5rem;
            border-left: 5px solid #4caf50;
            border-radius: 0 8px 8px 0;
            margin-bottom: 2.5rem;
        }
        .highlight {
            background-color: #fff9c4;
            padding: 0.2em 0.5em;
            border-radius: 3px;
            font-weight: 600;
        }
        .term {
            font-style: italic;
            color: #d84315;
            font-weight: 500;
        }
        .internal-link {
            color: #2e7d32;
            text-decoration: underline dotted;
            font-weight: 600;
        }
        .internal-link:hover {
            color: #1b5e20;
            text-decoration: underline solid;
        }
        .feature-box {
            background: linear-gradient(to bottom right, #e8f5e9, #c8e6c9);
            border: 2px solid #4caf50;
            border-radius: 10px;
            padding: 2rem;
            margin: 2.5rem 0;
            transition: transform 0.3s ease, box-shadow 0.3s ease;
        }
        .feature-box:hover {
            transform: translateY(-5px);
            box-shadow: 0 10px 25px rgba(76, 175, 80, 0.2);
        }
        .feature-title {
            display: flex;
            align-items: center;
            gap: 10px;
            color: #1b5e20;
            font-size: 1.5rem;
        }
        .search-form, .comment-form, .score-form {
            display: flex;
            flex-direction: column;
            gap: 1rem;
            margin-bottom: 2rem;
        }
        .search-form input, .comment-form textarea, .comment-form input, .score-form select {
            padding: 0.9rem;
            border: 1px solid #bdbdbd;
            border-radius: 8px;
            font-size: 1rem;
            transition: border-color 0.3s;
        }
        .search-form input:focus, .comment-form textarea:focus, .comment-form input:focus, .score-form select:focus {
            outline: none;
            border-color: #4caf50;
            box-shadow: 0 0 0 3px rgba(76, 175, 80, 0.2);
        }
        button, .btn {
            background-color: #4caf50;
            color: white;
            border: none;
            padding: 1rem 1.8rem;
            border-radius: 8px;
            font-size: 1.1rem;
            font-weight: 600;
            cursor: pointer;
            transition: background-color 0.3s, transform 0.2s;
            align-self: flex-start;
        }
        button:hover, .btn:hover {
            background-color: #388e3c;
            transform: scale(1.03);
        }
        .star-rating {
            display: flex;
            gap: 5px;
            font-size: 1.8rem;
            color: #ffc107;
            margin: 1rem 0;
        }
        .star-rating label {
            cursor: pointer;
        }
        .star-rating input {
            display: none;
        }
        .article-image {
            margin: 2.5rem auto;
            max-width: 800px;
            border-radius: 10px;
            overflow: hidden;
            box-shadow: 0 8px 20px rgba(0,0,0,0.1);
            border: 1px solid #e0e0e0;
        }
        .article-image figcaption {
            text-align: center;
            font-style: italic;
            color: #666;
            padding: 0.8rem;
            background-color: #f5f5f5;
        }
        .site-footer {
            background-color: #2e2e2e;
            color: #ddd;
            padding: 3rem 2rem;
            margin-top: 4rem;
        }
        .footer-container {
            max-width: 1300px;
            margin: 0 auto;
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 2.5rem;
        }
        .footer-links h3 {
            color: #4caf50;
            margin-bottom: 1.2rem;
            font-size: 1.4rem;
        }
        .footer-links ul {
            list-style: none;
        }
        .footer-links a {
            color: #bdbdbd;
            text-decoration: none;
            line-height: 2.2;
            transition: color 0.3s;
        }
        .footer-links a:hover {
            color: #4caf50;
            padding-left: 5px;
        }
        friend-link {
            display: block;
            background-color: #424242;
            padding: 1.2rem;
            border-radius: 6px;
            margin-top: 1rem;
        }
        friend-link a {
            color: #bb86fc;
            font-weight: 600;
        }
        .copyright {
            text-align: center;
            padding-top: 2rem;
            margin-top: 2rem;
            border-top: 1px solid #444;
            font-size: 0.9rem;
            color: #aaa;
        }
        @media (max-width: 1024px) {
            .main-content { grid-template-columns: 1fr; }
            aside { position: static; }
        }
        @media (max-width: 768px) {
            .header-container { flex-direction: column; align-items: flex-start; }
            .my-logo { font-size: 2.2rem; margin-bottom: 1rem; }
            .hamburger { display: block; }
            .main-nav { width: 100%; display: none; }
            .main-nav.active { display: block; }
            .main-nav ul { flex-direction: column; gap: 0; }
            .main-nav li { border-bottom: 1px solid rgba(255,255,255,0.1); }
            .main-nav a { display: block; padding: 1rem; }
            .breadcrumb, .main-content { padding-left: 1rem; padding-right: 1rem; }
            article { padding: 2rem 1.5rem; }
            h1 { font-size: 2.5rem; }
            h2 { font-size: 1.9rem; }
        }
        @media (max-width: 480px) {
            h1 { font-size: 2rem; }
            h2 { font-size: 1.6rem; }
            .lead { font-size: 1.2rem; }
            .feature-box { padding: 1.5rem; }
        }