* { margin: 0; padding: 0; box-sizing: border-box; }
        html { scroll-behavior: smooth; }
        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            line-height: 1.8;
            color: #333;
            background: linear-gradient(135deg, #f5f7fa 0%, #e4edf5 100%);
            max-width: 1400px;
            margin: 0 auto;
            padding: 0 15px;
        }
        h1 { font-size: 2.8rem; margin-bottom: 1.5rem; color: #2c3e50; border-bottom: 4px solid #3498db; padding-bottom: 0.7rem; }
        h2 { font-size: 2.2rem; margin: 2.5rem 0 1.2rem; color: #2980b9; }
        h3 { font-size: 1.8rem; margin: 2rem 0 1rem; color: #16a085; }
        h4 { font-size: 1.4rem; margin: 1.5rem 0 0.8rem; color: #8e44ad; }
        p { margin-bottom: 1.5rem; text-align: justify; }
        a { color: #3498db; text-decoration: none; transition: color 0.3s ease; }
        a:hover { color: #e74c3c; text-decoration: underline; }
        strong { color: #c0392b; }
        em { font-style: italic; color: #7f8c8d; }
        .highlight { background-color: #fffacd; padding: 2px 5px; border-radius: 3px; }
        .container { display: grid; grid-template-columns: 1fr; gap: 2rem; }
        header { background: linear-gradient(to right, #2c3e50, #4a6491); color: white; padding: 1.5rem 0; border-radius: 0 0 15px 15px; box-shadow: 0 5px 15px rgba(0,0,0,0.1); margin-bottom: 2rem; }
        .header-top { display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; padding: 0 1rem; }
        .my-logo { font-size: 2.5rem; font-weight: 900; color: #f1c40f; text-shadow: 2px 2px 4px rgba(0,0,0,0.3); letter-spacing: 2px; }
        .my-logo:hover { color: #1abc9c; text-decoration: none; }
        nav ul { display: flex; list-style: none; flex-wrap: wrap; gap: 1.5rem; }
        nav a { color: #ecf0f1; font-weight: 600; padding: 0.5rem 1rem; border-radius: 5px; }
        nav a:hover { background-color: rgba(255,255,255,0.15); text-decoration: none; }
        .hamburger { display: none; font-size: 1.8rem; cursor: pointer; }
        .breadcrumb { padding: 1rem 1.5rem; background-color: #ecf0f1; border-radius: 8px; margin: 1rem 1rem 2rem; font-size: 0.95rem; }
        .breadcrumb a { color: #7f8c8d; }
        main { display: grid; grid-template-columns: 3fr 1fr; gap: 2.5rem; }
        article { background-color: white; padding: 2.5rem; border-radius: 15px; box-shadow: 0 10px 30px rgba(0,0,0,0.08); }
        .article-image { width: 100%; max-height: 450px; object-fit: cover; border-radius: 10px; margin: 1.5rem 0; border: 5px solid #bdc3c7; }
        aside { background-color: #f8f9fa; padding: 1.8rem; border-radius: 15px; box-shadow: 0 5px 15px rgba(0,0,0,0.05); align-self: start; }
        .widget { margin-bottom: 2.5rem; }
        .widget h3 { font-size: 1.5rem; color: #2c3e50; border-left: 5px solid #3498db; padding-left: 10px; }
        .search-form, .comment-form, .rating-form { display: flex; flex-direction: column; gap: 1rem; }
        input, textarea, select { padding: 0.9rem; border: 1px solid #bdc3c7; border-radius: 8px; font-size: 1rem; width: 100%; }
        button { background: linear-gradient(to right, #3498db, #2980b9); color: white; border: none; padding: 1rem 1.8rem; border-radius: 8px; cursor: pointer; font-weight: bold; font-size: 1.05rem; transition: transform 0.3s, box-shadow 0.3s; }
        button:hover { transform: translateY(-3px); box-shadow: 0 7px 14px rgba(52, 152, 219, 0.4); }
        .stars { display: flex; gap: 0.5rem; font-size: 1.8rem; color: #f1c40f; cursor: pointer; }
        .related-links { display: grid; grid-template-columns: repeat(auto-fill, minmax(250px, 1fr)); gap: 1.2rem; margin: 2.5rem 0; }
        .link-card { background: #e8f4fc; padding: 1.2rem; border-radius: 10px; border-left: 5px solid #3498db; transition: transform 0.3s; }
        .link-card:hover { transform: translateX(10px); background: #d6eaf8; }
        footer { background: #2c3e50; color: #ecf0f1; padding: 3rem 1.5rem; border-radius: 15px 15px 0 0; margin-top: 3rem; text-align: center; }
        .friend-links { display: flex; justify-content: center; flex-wrap: wrap; gap: 2rem; margin: 2rem 0; }
        friend-link { display: inline-block; background-color: #34495e; padding: 0.7rem 1.5rem; border-radius: 25px; }
        friend-link a { color: #1abc9c; font-weight: bold; }
        .copyright { margin-top: 2rem; padding-top: 1.5rem; border-top: 1px solid #7f8c8d; font-size: 0.9rem; color: #bdc3c7; }
        @media (max-width: 992px) {
            main { grid-template-columns: 1fr; }
            h1 { font-size: 2.4rem; }
            h2 { font-size: 2rem; }
        }
        @media (max-width: 768px) {
            .header-top { flex-direction: column; align-items: flex-start; gap: 1rem; }
            nav ul { flex-direction: column; display: none; width: 100%; }
            nav.active ul { display: flex; }
            .hamburger { display: block; align-self: flex-end; margin-top: -3rem; }
            .related-links { grid-template-columns: 1fr; }
            article { padding: 1.8rem; }
        }
        .interactive-box { background: linear-gradient(145deg, #ffffff, #f0f0f0); border-radius: 12px; padding: 1.8rem; margin: 2rem 0; border-left: 8px solid #9b59b6; box-shadow: 5px 5px 15px rgba(0,0,0,0.05), -5px -5px 15px rgba(255,255,255,0.8); }
        .tip { background-color: #d5f4e6; padding: 1rem; border-radius: 8px; border: 1px dashed #16a085; }
        .update-time { background-color: #ffeaa7; padding: 0.5rem 1rem; border-radius: 20px; display: inline-block; font-weight: bold; margin-bottom: 1.5rem; }