* { 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: #333;
            background: #f8f9fa;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 15px;
        }
        img { max-width: 100%; height: auto; display: block; }
        header { background: #2c3e50; color: white; padding: 1rem 0; margin-bottom: 2rem; }
        .header-container {
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
        }
        .my-logo a {
            font-size: 2rem;
            font-weight: 800;
            color: #1abc9c;
            text-decoration: none;
            letter-spacing: 1px;
            font-family: 'Courier New', monospace;
        }
        .my-logo a:hover { color: #16a085; }
        nav ul { display: flex; list-style: none; }
        nav li { margin-left: 1.5rem; }
        nav a {
            color: #ecf0f1;
            text-decoration: none;
            font-weight: 500;
            padding: 0.5rem;
            border-radius: 4px;
            transition: background 0.3s;
        }
        nav a:hover { background: #1abc9c; }
        .hamburger {
            display: none;
            font-size: 1.5rem;
            background: none;
            border: none;
            color: white;
            cursor: pointer;
        }
        .breadcrumb {
            padding: 0.8rem 0;
            background: #ecf0f1;
            border-radius: 5px;
            margin-top: 1rem;
            font-size: 0.9rem;
        }
        .breadcrumb a { color: #2c3e50; text-decoration: none; }
        .breadcrumb a:hover { text-decoration: underline; }
        main { display: grid; grid-template-columns: 1fr 300px; gap: 2rem; }
        article { background: white; padding: 2rem; border-radius: 10px; box-shadow: 0 5px 15px rgba(0,0,0,0.05); }
        h1 { color: #2c3e50; margin-bottom: 1rem; font-size: 2.5rem; border-bottom: 3px solid #1abc9c; padding-bottom: 0.5rem; }
        h2 { color: #34495e; margin: 2rem 0 1rem; font-size: 1.8rem; }
        h3 { color: #16a085; margin: 1.5rem 0 0.8rem; font-size: 1.4rem; }
        h4 { color: #7f8c8d; margin: 1rem 0 0.5rem; font-size: 1.1rem; }
        p { margin-bottom: 1.2rem; text-align: justify; }
        .intro { font-size: 1.1rem; background: #e8f8f5; padding: 1rem; border-left: 4px solid #1abc9c; margin-bottom: 2rem; }
        .highlight { background: #fffde7; padding: 0.2rem 0.5rem; border-radius: 3px; font-weight: bold; }
        .feature-img {
            float: left;
            margin: 0 1.5rem 1rem 0;
            width: 300px;
            border-radius: 8px;
            box-shadow: 0 3px 10px rgba(0,0,0,0.1);
        }
        .clear { clear: both; }
        .link-list {
            background: #f1f8e9;
            padding: 1.5rem;
            border-radius: 8px;
            margin: 2rem 0;
        }
        .link-list ul { list-style: none; }
        .link-list li { margin-bottom: 0.8rem; }
        .link-list a {
            color: #388e3c;
            text-decoration: none;
            font-weight: 500;
        }
        .link-list a:hover { text-decoration: underline; }
        .update-time {
            font-style: italic;
            color: #7f8c8d;
            font-size: 0.9rem;
            text-align: right;
            margin-top: 2rem;
            padding-top: 1rem;
            border-top: 1px dashed #bdc3c7;
        }
        aside { background: white; padding: 1.5rem; border-radius: 10px; box-shadow: 0 5px 15px rgba(0,0,0,0.05); }
        .widget { margin-bottom: 2rem; }
        .widget h3 { font-size: 1.2rem; margin-bottom: 1rem; color: #2c3e50; border-bottom: 2px solid #eee; padding-bottom: 0.5rem; }
        .search-form input, .comment-form input, .comment-form textarea, .score-form select {
            width: 100%;
            padding: 0.8rem;
            margin-bottom: 1rem;
            border: 1px solid #ddd;
            border-radius: 5px;
            font-family: inherit;
        }
        .search-form button, .comment-form button, .score-form button {
            background: #1abc9c;
            color: white;
            border: none;
            padding: 0.8rem 1.5rem;
            border-radius: 5px;
            cursor: pointer;
            font-weight: bold;
            transition: background 0.3s;
            width: 100%;
        }
        button:hover { background: #16a085; }
        .score-options { display: flex; justify-content: space-around; margin: 1rem 0; }
        .score-options label { cursor: pointer; padding: 0.5rem; }
        .score-options input { margin-right: 0.5rem; }
        footer {
            background: #2c3e50;
            color: #ecf0f1;
            padding: 2rem 0;
            margin-top: 3rem;
            border-radius: 10px 10px 0 0;
        }
        .footer-container {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 2rem;
        }
        .footer-section h3 { color: #1abc9c; margin-bottom: 1rem; font-size: 1.2rem; }
        .footer-section ul { list-style: none; }
        .footer-section li { margin-bottom: 0.5rem; }
        .footer-section a { color: #bdc3c7; text-decoration: none; }
        .footer-section a:hover { color: #1abc9c; }
        friend-link {
            display: inline-block;
            background: #34495e;
            padding: 0.5rem 1rem;
            margin-right: 0.5rem;
            margin-bottom: 0.5rem;
            border-radius: 4px;
        }
        friend-link a { color: #1abc9c; font-weight: bold; }
        .copyright {
            text-align: center;
            padding-top: 2rem;
            margin-top: 2rem;
            border-top: 1px solid #34495e;
            font-size: 0.9rem;
            color: #95a5a6;
        }
        @media (max-width: 768px) {
            main { grid-template-columns: 1fr; }
            .header-container { flex-direction: column; align-items: flex-start; }
            nav ul { flex-direction: column; width: 100%; display: none; }
            nav.active ul { display: flex; }
            nav li { margin: 0.5rem 0; margin-left: 0; }
            .hamburger { display: block; align-self: flex-end; margin-top: -2.5rem; }
            .feature-img { float: none; width: 100%; margin: 0 0 1rem 0; }
        }