* { margin: 0; padding: 0; box-sizing: border-box; }
        html { font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif; line-height: 1.6; color: #333; background: #f9f9f9; }
        body { max-width: 1200px; margin: 0 auto; background: #fff; box-shadow: 0 0 20px rgba(0,0,0,0.1); }
        header { background: linear-gradient(135deg, #ff6b6b, #4ecdc4); padding: 1rem 2rem; display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; }
        .my-logo { font-size: 2.5rem; font-weight: bold; text-decoration: none; color: #fff; text-shadow: 2px 2px 4px rgba(0,0,0,0.3); }
        .my-logo:hover { color: #ffe66d; transition: color 0.3s; }
        nav { display: flex; align-items: center; }
        .nav-links { display: flex; list-style: none; }
        .nav-links li { margin-left: 1.5rem; }
        .nav-links a { color: #fff; text-decoration: none; font-weight: 500; padding: 0.5rem 1rem; border-radius: 20px; }
        .nav-links a:hover { background: rgba(255,255,255,0.2); transition: background 0.3s; }
        .hamburger { display: none; font-size: 1.8rem; color: #fff; cursor: pointer; }
        .breadcrumb { padding: 0.5rem 2rem; background: #eee; font-size: 0.9rem; }
        .breadcrumb a { color: #4ecdc4; text-decoration: none; }
        main { padding: 2rem; }
        h1 { color: #ff6b6b; font-size: 2.8rem; margin-bottom: 1rem; text-align: center; }
        h2 { color: #4ecdc4; font-size: 2rem; margin-top: 2rem; border-left: 5px solid #ff6b6b; padding-left: 1rem; }
        h3 { color: #555; font-size: 1.5rem; margin-top: 1.5rem; }
        h4 { color: #777; font-size: 1.2rem; margin-top: 1rem; }
        p { margin: 1rem 0; text-align: justify; }
        .highlight { background: #ffe66d; padding: 0.2rem 0.5rem; border-radius: 3px; }
        .emoji { font-size: 1.2rem; }
        img { max-width: 100%; height: auto; display: block; margin: 1.5rem auto; border-radius: 10px; box-shadow: 0 5px 15px rgba(0,0,0,0.1); }
        .content-links { color: #ff6b6b; text-decoration: none; border-bottom: 1px dashed; }
        .content-links:hover { color: #4ecdc4; transition: color 0.3s; }
        .search-box { margin: 2rem 0; text-align: center; }
        .search-box input { width: 70%; padding: 0.8rem; border: 2px solid #4ecdc4; border-radius: 25px; font-size: 1rem; }
        .search-box button { padding: 0.8rem 1.5rem; background: #ff6b6b; color: white; border: none; border-radius: 25px; cursor: pointer; margin-left: 0.5rem; }
        .search-box button:hover { background: #ff5252; transition: background 0.3s; }
        .comment-section, .rating-section { margin: 2rem 0; padding: 1.5rem; background: #f1f8ff; border-radius: 10px; }
        .comment-section textarea, .rating-section select { width: 100%; padding: 1rem; margin: 0.5rem 0; border: 1px solid #ccc; border-radius: 5px; }
        .comment-section button, .rating-section button { padding: 0.8rem 2rem; background: #4ecdc4; color: white; border: none; border-radius: 5px; cursor: pointer; }
        .comment-section button:hover, .rating-section button:hover { background: #3dbcb4; }
        .rating-stars { color: #ffd700; font-size: 1.5rem; }
        footer { background: #2d3436; color: #fff; padding: 2rem; text-align: center; }
        friend-link { display: block; margin: 1rem 0; }
        friend-link a { color: #4ecdc4; text-decoration: none; margin: 0 1rem; }
        friend-link a:hover { text-decoration: underline; }
        .copyright { margin-top: 2rem; font-size: 0.9rem; color: #bbb; }
        @media (max-width: 768px) {
            .nav-links { display: none; flex-direction: column; width: 100%; background: #ff6b6b; position: absolute; top: 100%; left: 0; padding: 1rem; }
            .nav-links.active { display: flex; }
            .nav-links li { margin: 0.5rem 0; }
            .hamburger { display: block; }
            .search-box input { width: 90%; }
            h1 { font-size: 2rem; }
            h2 { font-size: 1.5rem; }
        }
        .article-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 1.5rem; margin: 2rem 0; }
        .grid-item { background: #f9f9f9; padding: 1rem; border-radius: 10px; }
        .flex-container { display: flex; flex-wrap: wrap; justify-content: space-between; }