* {
            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;
            font-size: 1.05rem;
            padding-top: 80px; 
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        a {
            color: #2c5282;
            text-decoration: none;
            transition: color 0.3s ease;
        }
        a:hover {
            color: #1a365d;
            text-decoration: underline;
        }
        ul, ol {
            padding-left: 1.5em;
            margin: 1em 0;
        }
        li {
            margin-bottom: 0.5em;
        }
        h1, h2, h3, h4 {
            color: #1a202c;
            margin-top: 1.5em;
            margin-bottom: 0.7em;
            line-height: 1.3;
            font-weight: 700;
        }
        h1 {
            font-size: 2.8rem;
            border-bottom: 4px solid #4299e1;
            padding-bottom: 0.3em;
        }
        h2 {
            font-size: 2.2rem;
            color: #2d3748;
            border-left: 5px solid #4299e1;
            padding-left: 15px;
        }
        h3 {
            font-size: 1.8rem;
            color: #4a5568;
        }
        h4 {
            font-size: 1.5rem;
            color: #718096;
        }
        p {
            margin-bottom: 1.2em;
            text-align: justify;
        }
        .lead {
            font-size: 1.3rem;
            font-weight: 300;
            color: #4a5568;
            margin-bottom: 1.8em;
        }
        .highlight {
            background-color: #fffacd;
            padding: 0.2em 0.4em;
            border-radius: 3px;
            font-weight: 600;
        }
        .last-updated {
            font-size: 0.9rem;
            color: #718096;
            font-style: italic;
            text-align: right;
            margin-bottom: 2em;
            padding-bottom: 1em;
            border-bottom: 1px dashed #cbd5e0;
        }
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        header {
            background-color: #1a365d;
            color: white;
            position: fixed;
            top: 0;
            width: 100%;
            z-index: 1000;
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
        }
        .header-container {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 15px 20px;
        }
        .logo a {
            color: white;
            font-size: 2.2rem;
            font-weight: 800;
            letter-spacing: -1px;
            display: flex;
            align-items: center;
        }
        .logo i {
            color: #4299e1;
            margin-right: 10px;
            font-size: 2.5rem;
        }
        .my-logo {
            font-family: 'Arial Black', sans-serif;
            text-shadow: 2px 2px 4px rgba(0,0,0,0.3);
        }
        .breadcrumb {
            background-color: #edf2f7;
            padding: 10px 20px;
            font-size: 0.9rem;
            color: #4a5568;
        }
        .breadcrumb a {
            color: #2c5282;
        }
        .breadcrumb span {
            margin: 0 5px;
        }
        nav {
            display: flex;
        }
        .nav-links {
            display: flex;
            list-style: none;
        }
        .nav-links li {
            margin-left: 30px;
        }
        .nav-links a {
            color: #e2e8f0;
            font-weight: 500;
            font-size: 1.1rem;
            padding: 8px 5px;
            position: relative;
        }
        .nav-links a:hover {
            color: white;
            text-decoration: none;
        }
        .nav-links a::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 0;
            height: 3px;
            background-color: #4299e1;
            transition: width 0.3s ease;
        }
        .nav-links a:hover::after {
            width: 100%;
        }
        .hamburger {
            display: none;
            cursor: pointer;
            font-size: 1.8rem;
            color: white;
        }
        main {
            background-color: white;
            padding: 40px 0;
            border-radius: 8px;
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
            margin-bottom: 40px;
        }
        article {
            padding: 0 30px;
        }
        .feature-img {
            width: 100%;
            max-height: 500px;
            object-fit: cover;
            border-radius: 10px;
            margin: 30px 0;
            box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
        }
        .quote-box {
            background: linear-gradient(135deg, #e3f2fd 0%, #f3e5f5 100%);
            border-left: 6px solid #9c27b0;
            padding: 25px;
            margin: 30px 0;
            font-style: italic;
            border-radius: 0 10px 10px 0;
        }
        .quote-box p {
            font-size: 1.2rem;
            color: #2d3748;
            text-align: center;
        }
        .strategy-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 25px;
            margin: 30px 0;
        }
        .strategy-card {
            background: #f7fafc;
            border: 1px solid #e2e8f0;
            border-radius: 10px;
            padding: 25px;
            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: #2d3748;
            margin-top: 0;
        }
        .interaction-section {
            background-color: #f1f8ff;
            padding: 30px;
            border-radius: 10px;
            margin: 40px 0;
            border: 1px solid #c5d9f1;
        }
        .interaction-section h3 {
            color: #1a365d;
            margin-top: 0;
        }
        .form-group {
            margin-bottom: 20px;
        }
        .form-group label {
            display: block;
            margin-bottom: 8px;
            font-weight: 600;
            color: #2d3748;
        }
        .form-group input,
        .form-group textarea,
        .form-group select {
            width: 100%;
            padding: 12px 15px;
            border: 1px solid #cbd5e0;
            border-radius: 6px;
            font-size: 1rem;
            transition: border 0.3s ease;
        }
        .form-group input:focus,
        .form-group textarea:focus,
        .form-group select:focus {
            outline: none;
            border-color: #4299e1;
            box-shadow: 0 0 0 3px rgba(66, 153, 225, 0.2);
        }
        .btn {
            display: inline-block;
            background-color: #4299e1;
            color: white;
            padding: 12px 30px;
            border: none;
            border-radius: 6px;
            font-size: 1rem;
            font-weight: 600;
            cursor: pointer;
            transition: background-color 0.3s ease, transform 0.2s ease;
        }
        .btn:hover {
            background-color: #3182ce;
            transform: scale(1.03);
            text-decoration: none;
            color: white;
        }
        .star-rating {
            display: flex;
            flex-direction: row-reverse;
            justify-content: flex-end;
            font-size: 2rem;
            color: #cbd5e0;
        }
        .star-rating input {
            display: none;
        }
        .star-rating label {
            cursor: pointer;
            margin-right: 5px;
        }
        .star-rating input:checked ~ label,
        .star-rating label:hover,
        .star-rating label:hover ~ label {
            color: #f6c344;
        }
        footer {
            background-color: #1a202c;
            color: #cbd5e0;
            padding: 40px 0 20px;
        }
        .footer-content {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 40px;
            margin-bottom: 30px;
        }
        .footer-section h4 {
            color: #e2e8f0;
            margin-top: 0;
            font-size: 1.3rem;
            border-bottom: 2px solid #4299e1;
            padding-bottom: 10px;
            display: inline-block;
        }
        .footer-links {
            list-style: none;
            padding-left: 0;
        }
        .footer-links li {
            margin-bottom: 10px;
        }
        .footer-links a {
            color: #a0aec0;
        }
        .footer-links a:hover {
            color: #4299e1;
            padding-left: 5px;
            transition: all 0.3s ease;
        }
        friend-link {
            display: block;
            background-color: #2d3748;
            padding: 15px;
            border-radius: 6px;
            margin: 10px 0;
        }
        friend-link a {
            color: #63b3ed;
            font-weight: 600;
        }
        .copyright {
            text-align: center;
            padding-top: 20px;
            border-top: 1px solid #4a5568;
            font-size: 0.9rem;
            color: #a0aec0;
        }
        @media (max-width: 992px) {
            h1 { font-size: 2.4rem; }
            h2 { font-size: 2rem; }
            .lead { font-size: 1.2rem; }
        }
        @media (max-width: 768px) {
            body {
                padding-top: 70px;
                font-size: 1rem;
            }
            .header-container {
                padding: 10px 15px;
            }
            .logo a {
                font-size: 1.8rem;
            }
            .hamburger {
                display: block;
            }
            .nav-links {
                position: fixed;
                top: 70px;
                right: -100%;
                width: 80%;
                height: calc(100vh - 70px);
                background-color: #1a365d;
                flex-direction: column;
                align-items: center;
                padding-top: 40px;
                transition: right 0.5s ease;
                box-shadow: -5px 0 15px rgba(0,0,0,0.2);
            }
            .nav-links.active {
                right: 0;
            }
            .nav-links li {
                margin: 20px 0;
            }
            .nav-links a {
                font-size: 1.3rem;
            }
            article {
                padding: 0 20px;
            }
            .interaction-section {
                padding: 20px;
            }
        }
        @media (max-width: 480px) {
            h1 { font-size: 2rem; }
            h2 { font-size: 1.8rem; }
            .container {
                padding: 0 15px;
            }
        }