* { 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: linear-gradient(135deg, #f5f7fa 0%, #e4edf5 100%);
            min-height: 100vh;
            padding-bottom: 40px;
        }
        img { max-width: 100%; height: auto; display: block; }
        h1 { font-size: clamp(2.5rem, 5vw, 3.8rem); color: #2c3e50; margin-bottom: 1.5rem; line-height: 1.2; }
        h2 { font-size: clamp(1.8rem, 4vw, 2.5rem); color: #3498db; border-left: 5px solid #e74c3c; padding-left: 15px; margin: 2.5rem 0 1.5rem; }
        h3 { font-size: 1.6rem; color: #2980b9; margin: 2rem 0 1rem; }
        h4 { font-size: 1.3rem; color: #16a085; margin: 1.8rem 0 0.8rem; }
        p { margin-bottom: 1.2rem; text-align: justify; }
        strong { color: #e74c3c; font-weight: 700; }
        em { font-style: italic; color: #7f8c8d; }
        .lead { font-size: 1.3rem; color: #2c3e50; font-weight: 500; }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        main { display: grid; grid-template-columns: 1fr 300px; gap: 40px; margin-top: 30px; }
        @media (max-width: 992px) {
            main { grid-template-columns: 1fr; }
        }
        header { background: linear-gradient(90deg, #2c3e50, #4a6491); color: white; padding: 1rem 0; box-shadow: 0 4px 12px rgba(0,0,0,0.1); position: sticky; top: 0; z-index: 1000; }
        .header-container { display: flex; justify-content: space-between; align-items: center; }
        .my-logo {
            font-family: 'Georgia', serif;
            font-size: 2.4rem;
            font-weight: 900;
            color: #fff;
            text-decoration: none;
            background: linear-gradient(90deg, #ff7e5f, #feb47b);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            padding: 5px 0;
        }
        .my-logo:hover { transform: scale(1.03); transition: transform 0.3s; }
        nav ul { display: flex; list-style: none; }
        nav ul li { margin-left: 2rem; }
        nav ul li a {
            color: #ecf0f1;
            text-decoration: none;
            font-weight: 600;
            padding: 8px 12px;
            border-radius: 4px;
            transition: all 0.3s;
        }
        nav ul li a:hover { background: rgba(255,255,255,0.15); color: #ffdd59; }
        .hamburger { display: none; font-size: 1.8rem; cursor: pointer; color: white; }
        @media (max-width: 768px) {
            .hamburger { display: block; }
            nav ul {
                display: none;
                position: absolute;
                top: 100%; left: 0;
                width: 100%;
                background: #2c3e50;
                flex-direction: column;
                padding: 20px;
                box-shadow: 0 10px 15px rgba(0,0,0,0.1);
            }
            nav ul.active { display: flex; }
            nav ul li { margin: 10px 0; }
        }
        .breadcrumb {
            padding: 15px 0;
            font-size: 0.95rem;
            color: #7f8c8d;
        }
        .breadcrumb a { color: #3498db; text-decoration: none; }
        .breadcrumb a:hover { text-decoration: underline; }
        aside {
            background: white;
            border-radius: 12px;
            padding: 25px;
            box-shadow: 0 5px 15px rgba(0,0,0,0.05);
            align-self: start;
            position: sticky;
            top: 120px;
        }
        .sidebar-widget { margin-bottom: 30px; }
        .sidebar-widget h3 { font-size: 1.4rem; color: #2c3e50; border-bottom: 2px dashed #3498db; padding-bottom: 10px; margin-bottom: 15px; }
        .search-form { display: flex; margin-bottom: 20px; }
        .search-form input {
            flex-grow: 1;
            padding: 12px 15px;
            border: 2px solid #ddd;
            border-radius: 6px 0 0 6px;
            font-size: 1rem;
        }
        .search-form button {
            background: linear-gradient(90deg, #3498db, #2980b9);
            color: white;
            border: none;
            padding: 0 20px;
            border-radius: 0 6px 6px 0;
            cursor: pointer;
            font-size: 1.1rem;
            transition: background 0.3s;
        }
        .search-form button:hover { background: linear-gradient(90deg, #2980b9, #1c6ea4); }
        article {
            background: white;
            border-radius: 12px;
            padding: 40px;
            box-shadow: 0 5px 20px rgba(0,0,0,0.06);
        }
        .article-meta {
            color: #7f8c8d;
            font-size: 0.95rem;
            margin-bottom: 25px;
            padding-bottom: 15px;
            border-bottom: 1px solid #eee;
            display: flex;
            justify-content: space-between;
            flex-wrap: wrap;
        }
        .featured-img {
            width: 100%;
            border-radius: 10px;
            margin: 25px auto;
            box-shadow: 0 8px 20px rgba(0,0,0,0.1);
            border: 1px solid #eee;
        }
        .highlight-box {
            background: linear-gradient(135deg, #e3f2fd, #f3e5f5);
            border-left: 5px solid #9b59b6;
            padding: 20px;
            margin: 25px 0;
            border-radius: 0 10px 10px 0;
        }
        .strategy-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 20px;
            margin: 30px 0;
        }
        .strategy-card {
            background: #f8f9fa;
            padding: 20px;
            border-radius: 10px;
            border-top: 4px solid #2ecc71;
            transition: transform 0.3s, box-shadow 0.3s;
        }
        .strategy-card:hover { transform: translateY(-5px); box-shadow: 0 10px 20px rgba(0,0,0,0.08); }
        .content-link {
            color: #e74c3c;
            font-weight: 600;
            text-decoration: none;
            border-bottom: 1px dotted #e74c3c;
        }
        .content-link:hover { color: #c0392b; border-bottom: 2px solid #c0392b; }
        .rating-section, .comment-section {
            background: #f8f9fa;
            padding: 25px;
            border-radius: 10px;
            margin-top: 40px;
            border: 1px solid #e9ecef;
        }
        .rating-form, .comment-form { display: flex; flex-direction: column; gap: 15px; margin-top: 15px; }
        .stars { display: flex; gap: 10px; font-size: 1.8rem; color: #ddd; cursor: pointer; }
        .stars .star:hover, .stars .star.active { color: #f1c40f; }
        .form-group label { display: block; margin-bottom: 5px; font-weight: 600; color: #2c3e50; }
        .form-group input, .form-group textarea, .form-group select {
            width: 100%;
            padding: 12px 15px;
            border: 2px solid #ddd;
            border-radius: 6px;
            font-size: 1rem;
            transition: border 0.3s;
        }
        .form-group input:focus, .form-group textarea:focus, .form-group select:focus { border-color: #3498db; outline: none; }
        .btn {
            background: linear-gradient(90deg, #2ecc71, #27ae60);
            color: white;
            border: none;
            padding: 14px 25px;
            border-radius: 6px;
            font-size: 1.1rem;
            font-weight: 600;
            cursor: pointer;
            transition: all 0.3s;
            align-self: flex-start;
        }
        .btn:hover { background: linear-gradient(90deg, #27ae60, #219653); transform: translateY(-2px); box-shadow: 0 5px 10px rgba(39, 174, 96, 0.3); }
        footer {
            background: #2c3e50;
            color: #ecf0f1;
            padding: 40px 0 20px;
            margin-top: 60px;
            border-top: 5px solid #3498db;
        }
        .footer-container { display: flex; justify-content: space-between; flex-wrap: wrap; gap: 30px; }
        .footer-section { flex: 1; min-width: 250px; }
        .footer-section h3 { color: #ffdd59; font-size: 1.4rem; margin-bottom: 20px; }
        friend-link {
            display: block;
            color: #3498db;
            margin-bottom: 10px;
            text-decoration: none;
            padding: 8px 0;
            border-bottom: 1px solid #34495e;
            transition: color 0.3s;
        }
        friend-link:hover { color: #ffdd59; }
        .copyright {
            text-align: center;
            padding-top: 20px;
            margin-top: 20px;
            border-top: 1px solid #34495e;
            color: #95a5a6;
            font-size: 0.9rem;
        }
        .text-center { text-align: center; }
        .mt-4 { margin-top: 2rem; }
        .mb-4 { margin-bottom: 2rem; }
        .emoji { font-size: 1.2em; }