* { 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: #fefdf9;
            background-image: linear-gradient(180deg, #f5f1e8 0%, #fefdf9 100%);
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 15px;
        }
        a { color: #b86b1f; text-decoration: none; transition: color 0.3s; }
        a:hover { color: #8a4d15; text-decoration: underline; }
        img { max-width: 100%; height: auto; display: block; }
        .site-header {
            padding: 1.5rem 0;
            border-bottom: 3px solid #e0d6c2;
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: center;
            margin-bottom: 1.5rem;
        }
        .my-logo {
            font-family: Georgia, serif;
            font-size: 2.5rem;
            font-weight: bold;
            color: #5a3921;
            text-shadow: 2px 2px 0 #e0d6c2;
        }
        .my-logo a { color: inherit; text-decoration: none; }
        .my-logo span { color: #b86b1f; font-style: italic; }
        .main-nav ul {
            display: flex;
            list-style: none;
            gap: 1.5rem;
            flex-wrap: wrap;
        }
        .main-nav a {
            font-weight: 600;
            color: #5a3921;
            padding: 0.5rem;
            border-radius: 4px;
        }
        .main-nav a:hover {
            background-color: #e9e1d1;
            text-decoration: none;
        }
        .hamburger {
            display: none;
            background: none;
            border: none;
            font-size: 1.8rem;
            color: #5a3921;
            cursor: pointer;
        }
        .breadcrumb {
            padding: 0.8rem 0;
            margin-bottom: 2rem;
            color: #777;
            font-size: 0.9rem;
            border-bottom: 1px dashed #ddd;
        }
        .breadcrumb a { color: #777; }
        .article-content {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 3rem;
            margin-bottom: 3rem;
        }
        @media (max-width: 900px) {
            .article-content { grid-template-columns: 1fr; }
        }
        main { min-width: 0; }
        h1, h2, h3, h4 {
            font-family: Georgia, serif;
            color: #3d2a1a;
            margin-top: 2rem;
            margin-bottom: 1rem;
            line-height: 1.3;
        }
        h1 {
            font-size: 2.8rem;
            border-bottom: 4px double #b86b1f;
            padding-bottom: 1rem;
        }
        h2 { font-size: 2rem; color: #5a3921; }
        h3 { font-size: 1.6rem; color: #7a5b3c; }
        h4 { font-size: 1.3rem; color: #9c7d5e; }
        p, li {
            margin-bottom: 1.2rem;
            font-size: 1.1rem;
            text-align: justify;
        }
        ul, ol { padding-left: 2rem; margin-bottom: 1.5rem; }
        .lead {
            font-size: 1.3rem;
            font-weight: bold;
            color: #444;
            background-color: #f5f1e8;
            padding: 1.5rem;
            border-left: 5px solid #b86b1f;
            margin-bottom: 2rem;
            border-radius: 0 8px 8px 0;
        }
        .highlight-box {
            background: linear-gradient(135deg, #e9e1d1, #f5f1e8);
            border: 1px solid #d4c9b1;
            padding: 1.5rem;
            border-radius: 10px;
            margin: 2rem 0;
            box-shadow: 0 5px 15px rgba(0,0,0,0.05);
        }
        .img-container {
            margin: 2.5rem auto;
            text-align: center;
            max-width: 800px;
        }
        .img-container img {
            border-radius: 12px;
            border: 1px solid #d4c9b1;
            box-shadow: 0 10px 25px rgba(90, 57, 33, 0.15);
        }
        .img-caption {
            font-style: italic;
            color: #666;
            margin-top: 0.8rem;
            font-size: 0.95rem;
        }
        .quote {
            font-family: Georgia, serif;
            font-size: 1.4rem;
            color: #5a3921;
            text-align: center;
            padding: 2rem;
            margin: 2.5rem 0;
            border-top: 2px solid #b86b1f;
            border-bottom: 2px solid #b86b1f;
            font-style: italic;
        }
        .interactive-form {
            background-color: #fff;
            border: 2px solid #e0d6c2;
            border-radius: 12px;
            padding: 2rem;
            margin: 3rem 0;
            box-shadow: 0 8px 20px rgba(0,0,0,0.06);
        }
        .interactive-form h3 { margin-top: 0; }
        .form-group { margin-bottom: 1.5rem; }
        label {
            display: block;
            margin-bottom: 0.5rem;
            font-weight: 600;
            color: #5a3921;
        }
        input, textarea, select {
            width: 100%;
            padding: 0.8rem;
            border: 1px solid #ccc;
            border-radius: 6px;
            font-family: inherit;
            font-size: 1rem;
            transition: border 0.3s;
        }
        input:focus, textarea:focus, select:focus {
            outline: none;
            border-color: #b86b1f;
            box-shadow: 0 0 0 3px rgba(184, 107, 31, 0.2);
        }
        button {
            background: linear-gradient(to bottom, #b86b1f, #9a5a1a);
            color: white;
            border: none;
            padding: 0.9rem 2rem;
            border-radius: 6px;
            font-weight: bold;
            cursor: pointer;
            transition: all 0.3s;
            font-size: 1rem;
        }
        button:hover {
            background: linear-gradient(to bottom, #9a5a1a, #7a4a15);
            transform: translateY(-2px);
            box-shadow: 0 5px 10px rgba(154, 90, 26, 0.3);
        }
        .rating-stars {
            display: flex;
            gap: 0.5rem;
            font-size: 1.8rem;
            color: #e0d6c2;
            margin-bottom: 1rem;
        }
        .rating-stars .star {
            cursor: pointer;
            transition: color 0.2s;
        }
        .rating-stars .star:hover,
        .rating-stars .star.active {
            color: #ffc107;
        }
        .sidebar {
            font-size: 0.95rem;
        }
        .sidebar-widget {
            background-color: #fff;
            border: 1px solid #e0d6c2;
            border-radius: 10px;
            padding: 1.5rem;
            margin-bottom: 2rem;
            box-shadow: 0 5px 15px rgba(0,0,0,0.04);
        }
        .sidebar-widget h3 {
            font-size: 1.3rem;
            margin-top: 0;
            border-bottom: 2px solid #e0d6c2;
            padding-bottom: 0.5rem;
        }
        .toc ul {
            list-style: none;
            padding-left: 0;
        }
        .toc li { margin-bottom: 0.8rem; }
        .toc a {
            display: block;
            padding: 0.4rem 0.8rem;
            border-radius: 4px;
            background-color: #f9f7f2;
        }
        .toc a:hover {
            background-color: #e9e1d1;
            text-decoration: none;
        }
        .update-time {
            font-size: 0.9rem;
            color: #777;
            font-style: italic;
            text-align: right;
            margin-top: 1rem;
            padding-top: 1rem;
            border-top: 1px dashed #ddd;
        }
        .site-footer {
            background-color: #3d2a1a;
            color: #e0d6c2;
            padding: 3rem 2rem;
            margin-top: 4rem;
            border-radius: 15px 15px 0 0;
        }
        .friend-links {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 2rem;
            margin-bottom: 2.5rem;
        }
        .friend-links a {
            color: #f5b876;
            font-weight: 600;
            padding: 0.5rem 1rem;
            border: 1px solid #5a3921;
            border-radius: 6px;
            background-color: rgba(90, 57, 33, 0.3);
        }
        .friend-links a:hover {
            background-color: rgba(90, 57, 33, 0.6);
            text-decoration: none;
        }
        .copyright {
            text-align: center;
            font-size: 0.9rem;
            color: #b8a58b;
            padding-top: 2rem;
            border-top: 1px solid #5a3921;
        }
        @media (max-width: 768px) {
            .site-header { flex-direction: column; align-items: flex-start; }
            .main-nav { width: 100%; margin-top: 1rem; }
            .main-nav ul {
                flex-direction: column;
                gap: 0.5rem;
                display: none;
            }
            .main-nav ul.active { display: flex; }
            .hamburger { display: block; }
            h1 { font-size: 2.2rem; }
            h2 { font-size: 1.8rem; }
            .lead { font-size: 1.1rem; }
        }