* { margin: 0; padding: 0; box-sizing: border-box; font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif; }
        html { scroll-behavior: smooth; }
        body { background-color: #f8f9fa; color: #333; line-height: 1.7; }
        a { text-decoration: none; color: inherit; }
        ul { list-style: none; }
        img { max-width: 100%; height: auto; display: block; }
        h1, h2, h3, h4 { color: #2c3e50; font-weight: 700; margin-bottom: 1rem; line-height: 1.3; }
        h1 { font-size: clamp(2.2rem, 5vw, 3.5rem); }
        h2 { font-size: clamp(1.8rem, 4vw, 2.5rem); border-left: 5px solid #e74c3c; padding-left: 15px; margin-top: 2.5rem; }
        h3 { font-size: clamp(1.4rem, 3vw, 1.8rem); color: #3498db; margin-top: 2rem; }
        p { margin-bottom: 1.2rem; font-size: 1.05rem; }
        .lead { font-size: 1.2rem; color: #555; font-weight: 500; }
        .highlight { background-color: #fffacd; padding: 2px 6px; border-radius: 3px; }
        .term { font-weight: bold; color: #2980b9; }
        .container { width: 100%; max-width: 1200px; margin: 0 auto; padding: 0 20px; }
        .content-wrapper { display: grid; grid-template-columns: 1fr 300px; gap: 40px; margin: 30px 0; }
        @media (max-width: 992px) { .content-wrapper { grid-template-columns: 1fr; } }
        header { background: linear-gradient(135deg, #1a2980, #26d0ce); color: white; padding: 1rem 0; box-shadow: 0 4px 12px rgba(0,0,0,0.1); position: sticky; top: 0; z-index: 1000; }
        .header-inner { display: flex; justify-content: space-between; align-items: center; }
        .logo a { font-size: 2.2rem; font-weight: 900; color: white; text-shadow: 2px 2px 4px rgba(0,0,0,0.3); }
        .logo span { color: #f1c40f; }
        .nav-desktop { display: flex; gap: 2rem; }
        .nav-desktop a { font-weight: 600; padding: 8px 12px; border-radius: 5px; transition: all 0.3s ease; }
        .nav-desktop a:hover { background-color: rgba(255,255,255,0.2); transform: translateY(-2px); }
        .hamburger { display: none; font-size: 1.8rem; cursor: pointer; }
        @media (max-width: 768px) {
            .nav-desktop { display: none; }
            .hamburger { display: block; }
            .nav-mobile { display: none; flex-direction: column; background-color: #2c3e50; position: absolute; top: 100%; left: 0; width: 100%; padding: 1rem; box-shadow: 0 5px 10px rgba(0,0,0,0.2); }
            .nav-mobile.active { display: flex; }
            .nav-mobile a { padding: 12px; border-bottom: 1px solid rgba(255,255,255,0.1); }
        }
        .breadcrumb { background-color: #ecf0f1; padding: 12px 20px; border-radius: 5px; margin: 20px 0; font-size: 0.95rem; }
        .breadcrumb a { color: #3498db; }
        .breadcrumb a:hover { text-decoration: underline; }
        main { background-color: white; padding: 30px; border-radius: 12px; box-shadow: 0 5px 20px rgba(0,0,0,0.05); }
        .article-meta { color: #7f8c8d; margin-bottom: 2rem; font-style: italic; }
        .featured-img { width: 100%; border-radius: 10px; margin: 2rem 0; box-shadow: 0 8px 16px rgba(0,0,0,0.1); }
        .strategy-box { background-color: #e8f4fc; border-left: 5px solid #3498db; padding: 20px; margin: 2rem 0; border-radius: 0 10px 10px 0; }
        .stats-box { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 15px; margin: 2rem 0; }
        .stat { background: linear-gradient(to right, #667eea, #764ba2); color: white; padding: 20px; border-radius: 10px; text-align: center; }
        .stat h4 { color: white; margin-bottom: 5px; }
        aside { background-color: white; padding: 25px; border-radius: 12px; box-shadow: 0 5px 15px rgba(0,0,0,0.05); align-self: start; position: sticky; top: 120px; }
        .sidebar-widget { margin-bottom: 2rem; }
        .sidebar-widget h3 { font-size: 1.3rem; border-bottom: 2px solid #f1c40f; padding-bottom: 10px; }
        .quick-links li { padding: 10px 0; border-bottom: 1px dashed #eee; }
        .quick-links a:hover { color: #e74c3c; }
        .search-form { display: flex; margin-bottom: 2rem; }
        .search-input { flex-grow: 1; padding: 12px 15px; border: 2px solid #3498db; border-radius: 5px 0 0 5px; font-size: 1rem; }
        .search-btn { background-color: #3498db; color: white; border: none; padding: 0 20px; border-radius: 0 5px 5px 0; cursor: pointer; transition: background 0.3s; }
        .search-btn:hover { background-color: #2980b9; }
        .interaction-form { background-color: #f9f9f9; padding: 25px; border-radius: 10px; margin: 3rem 0; border: 1px solid #eee; }
        .interaction-form h3 { margin-top: 0; }
        .form-group { margin-bottom: 1.2rem; }
        label { display: block; margin-bottom: 5px; font-weight: 600; }
        input, textarea, select { width: 100%; padding: 12px; border: 1px solid #ccc; border-radius: 5px; font-size: 1rem; }
        textarea { min-height: 120px; resize: vertical; }
        .rating { display: flex; gap: 5px; margin: 10px 0; }
        .rating input { display: none; }
        .rating label { font-size: 1.8rem; color: #ddd; cursor: pointer; }
        .rating input:checked ~ label { color: #ddd; }
        .rating label:hover,
        .rating label:hover ~ label { color: #f1c40f; }
        .rating input:checked + label,
        .rating input:checked + label ~ label { color: #f1c40f; }
        .submit-btn { background: linear-gradient(to right, #e74c3c, #c0392b); color: white; padding: 14px 30px; border: none; border-radius: 5px; font-size: 1.1rem; font-weight: bold; cursor: pointer; transition: transform 0.2s; }
        .submit-btn:hover { transform: scale(1.03); }
        .web-links-section { background-color: #2c3e50; color: white; padding: 30px 0; margin-top: 40px; }
        .web-links { display: flex; flex-wrap: wrap; gap: 15px; justify-content: center; }
        .web-link { background-color: rgba(255,255,255,0.1); padding: 12px 20px; border-radius: 30px; transition: all 0.3s; }
        .web-link:hover { background-color: #3498db; transform: translateY(-3px); }
        footer { background-color: #1a252f; color: #bdc3c7; text-align: center; padding: 30px 0; }
        .copyright { margin-top: 20px; font-size: 0.9rem; }
        .text-center { text-align: center; }
        .mt-1 { margin-top: 1rem; }
        .mb-1 { margin-bottom: 1rem; }
        .emoji { font-size: 1.2em; }