* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
        }
        body {
            background: linear-gradient(135deg, #1a237e 0%, #311b92 100%);
            color: #f5f5f5;
            line-height: 1.8;
            overflow-x: hidden;
        }
        a {
            color: #ffcc80;
            text-decoration: none;
            transition: color 0.3s ease;
        }
        a:hover {
            color: #ffab40;
            text-decoration: underline;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        header {
            background: rgba(26, 35, 126, 0.95);
            padding: 1rem 0;
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
        }
        .header-container {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .logo a {
            font-size: 2.2rem;
            font-weight: 800;
            color: #ffcc80;
            text-transform: uppercase;
            letter-spacing: 1px;
            display: flex;
            align-items: center;
        }
        .logo i {
            margin-right: 10px;
            color: #ffab40;
        }
        .nav-desktop {
            display: flex;
            gap: 2rem;
        }
        .nav-desktop a {
            font-weight: 600;
            font-size: 1.1rem;
            padding: 0.5rem 0;
            position: relative;
        }
        .nav-desktop a::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 0;
            height: 3px;
            background: #ffab40;
            transition: width 0.3s ease;
        }
        .nav-desktop a:hover::after {
            width: 100%;
        }
        .search-box {
            display: flex;
            align-items: center;
            background: rgba(255, 255, 255, 0.1);
            border-radius: 30px;
            padding: 0.5rem 1rem;
        }
        .search-box input {
            background: transparent;
            border: none;
            color: #fff;
            outline: none;
            width: 200px;
            padding: 0.5rem;
        }
        .search-box button {
            background: transparent;
            border: none;
            color: #ffcc80;
            cursor: pointer;
            font-size: 1.2rem;
        }
        .hamburger {
            display: none;
            font-size: 1.8rem;
            cursor: pointer;
            color: #ffcc80;
        }
        .nav-mobile {
            display: none;
            flex-direction: column;
            background: rgba(26, 35, 126, 0.98);
            position: absolute;
            top: 100%;
            left: 0;
            width: 100%;
            padding: 1rem;
            box-shadow: 0 10px 15px rgba(0,0,0,0.2);
        }
        .nav-mobile.active {
            display: flex;
        }
        .nav-mobile a {
            padding: 0.8rem 0;
            border-bottom: 1px solid rgba(255, 204, 128, 0.2);
            font-weight: 600;
        }
        .nav-mobile a:last-child {
            border-bottom: none;
        }
        .breadcrumb {
            padding: 1rem 0;
            background: rgba(48, 63, 159, 0.8);
            font-size: 0.9rem;
        }
        .breadcrumb ol {
            display: flex;
            list-style: none;
            flex-wrap: wrap;
        }
        .breadcrumb li:not(:last-child)::after {
            content: '>';
            margin: 0 10px;
            color: #ffcc80;
        }
        .breadcrumb a {
            color: #ffcc80;
        }
        main {
            background: #ffffff;
            color: #333;
            padding: 2rem 0;
            border-radius: 10px 10px 0 0;
            margin-top: 1rem;
        }
        .article-header {
            text-align: center;
            margin-bottom: 3rem;
            padding-bottom: 2rem;
            border-bottom: 3px solid #311b92;
        }
        .article-header h1 {
            font-size: 2.8rem;
            color: #1a237e;
            margin-bottom: 1rem;
            line-height: 1.3;
        }
        .article-meta {
            color: #666;
            font-style: italic;
            display: flex;
            justify-content: center;
            gap: 2rem;
            flex-wrap: wrap;
        }
        .article-content {
            max-width: 900px;
            margin: 0 auto;
            padding: 0 20px;
        }
        .article-content h2 {
            color: #311b92;
            font-size: 2rem;
            margin: 2.5rem 0 1rem;
            padding-bottom: 0.5rem;
            border-bottom: 2px dashed #ffcc80;
        }
        .article-content h3 {
            color: #4527a0;
            font-size: 1.6rem;
            margin: 2rem 0 1rem;
        }
        .article-content p {
            margin-bottom: 1.5rem;
            font-size: 1.1rem;
            text-align: justify;
        }
        .article-content strong {
            color: #1a237e;
            font-weight: 700;
        }
        .article-content em {
            color: #5c6bc0;
        }
        .highlight-box {
            background: linear-gradient(to right, #e3f2fd, #f3e5f5);
            border-left: 5px solid #ff9800;
            padding: 1.5rem;
            margin: 2rem 0;
            border-radius: 0 10px 10px 0;
        }
        .image-container {
            margin: 2.5rem auto;
            text-align: center;
            border-radius: 10px;
            overflow: hidden;
            box-shadow: 0 10px 20px rgba(0,0,0,0.2);
        }
        .image-container img {
            width: 100%;
            max-width: 800px;
        }
        .image-caption {
            font-size: 0.9rem;
            color: #666;
            padding: 0.5rem;
            background: #f5f5f5;
        }
        .strategy-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 2rem;
            margin: 3rem 0;
        }
        .strategy-card {
            background: #f9f9f9;
            border-radius: 10px;
            padding: 1.5rem;
            box-shadow: 0 5px 15px rgba(0,0,0,0.05);
            border-top: 4px solid #311b92;
            transition: transform 0.3s ease, box-shadow 0.3s ease;
        }
        .strategy-card:hover {
            transform: translateY(-10px);
            box-shadow: 0 15px 30px rgba(0,0,0,0.1);
        }
        .strategy-card h4 {
            color: #1a237e;
            margin-bottom: 1rem;
            font-size: 1.3rem;
        }
        .user-interaction {
            background: #f8f9fa;
            border-radius: 10px;
            padding: 2rem;
            margin: 3rem auto;
            border: 1px solid #ddd;
            max-width: 900px;
        }
        .user-interaction h2 {
            color: #1a237e;
            margin-bottom: 1.5rem;
            text-align: center;
        }
        .form-group {
            margin-bottom: 1.5rem;
        }
        .form-group label {
            display: block;
            margin-bottom: 0.5rem;
            color: #555;
            font-weight: 600;
        }
        .form-group input,
        .form-group textarea,
        .form-group select {
            width: 100%;
            padding: 0.8rem;
            border: 1px solid #ccc;
            border-radius: 5px;
            font-size: 1rem;
            transition: border 0.3s ease;
        }
        .form-group input:focus,
        .form-group textarea:focus,
        .form-group select:focus {
            border-color: #311b92;
            outline: none;
        }
        .rating-stars {
            display: flex;
            gap: 0.5rem;
            font-size: 1.8rem;
            color: #ffcc80;
            cursor: pointer;
            margin-bottom: 1rem;
        }
        .rating-stars .star:hover,
        .rating-stars .star.active {
            color: #ff9800;
        }
        .btn-submit {
            background: linear-gradient(to right, #311b92, #1a237e);
            color: white;
            border: none;
            padding: 1rem 2rem;
            border-radius: 30px;
            font-size: 1.1rem;
            cursor: pointer;
            transition: all 0.3s ease;
            display: block;
            margin: 0 auto;
        }
        .btn-submit:hover {
            background: linear-gradient(to right, #4527a0, #283593);
            transform: scale(1.05);
        }
        .footer-links {
            background: #1a237e;
            padding: 3rem 0;
            margin-top: 3rem;
        }
        .web-link {
            background: rgba(255, 255, 255, 0.05);
            border-radius: 8px;
            padding: 1.2rem;
            margin-bottom: 1rem;
            transition: background 0.3s ease;
        }
        .web-link:hover {
            background: rgba(255, 255, 255, 0.1);
        }
        .web-link a {
            font-size: 1.1rem;
            color: #ffcc80;
            display: block;
        }
        .web-link a:hover {
            color: #ffab40;
        }
        footer {
            background: #0d153a;
            color: #b0bec5;
            padding: 2rem 0;
            text-align: center;
        }
        .copyright {
            font-size: 0.9rem;
            margin-top: 1rem;
            border-top: 1px solid #37474f;
            padding-top: 1rem;
        }
        @media (max-width: 992px) {
            .nav-desktop, .search-box {
                display: none;
            }
            .hamburger {
                display: block;
            }
            .article-header h1 {
                font-size: 2.2rem;
            }
            .strategy-grid {
                grid-template-columns: 1fr;
            }
        }
        @media (max-width: 768px) {
            .article-header h1 {
                font-size: 1.8rem;
            }
            .article-content h2 {
                font-size: 1.6rem;
            }
            .article-content h3 {
                font-size: 1.4rem;
            }
            .user-interaction {
                padding: 1.5rem;
            }
        }
        @media (max-width: 480px) {
            .logo a {
                font-size: 1.8rem;
            }
            .breadcrumb li {
                font-size: 0.8rem;
            }
            .article-meta {
                flex-direction: column;
                gap: 0.5rem;
            }
        }