:root {
            --primary: #2a5c8b;
            --secondary: #e63946;
            --accent: #4cc9f0;
            --light: #f8f9fa;
            --dark: #212529;
            --gray: #6c757d;
            --success: #38b000;
            --shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
            --border-radius: 10px;
            --transition: all 0.3s ease;
            --container-width: 1200px;
        }
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
        }
        html {
            scroll-behavior: smooth;
            font-size: 16px;
        }
        body {
            background-color: #f0f4f8;
            color: var(--dark);
            line-height: 1.7;
            overflow-x: hidden;
        }
        .container {
            width: 100%;
            max-width: var(--container-width);
            margin: 0 auto;
            padding: 0 20px;
        }
        header {
            background: linear-gradient(135deg, var(--primary) 0%, #1d3557 100%);
            color: white;
            box-shadow: var(--shadow);
            position: sticky;
            top: 0;
            z-index: 1000;
        }
        .header-top {
            padding: 15px 0;
            border-bottom: 1px solid rgba(255, 255, 255, 0.1);
        }
        .logo a {
            font-size: 2.2rem;
            font-weight: 800;
            color: white;
            text-decoration: none;
            letter-spacing: 1px;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .logo i {
            color: var(--accent);
            font-size: 2.5rem;
        }
        .header-top .container {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .search-form {
            display: flex;
            width: 100%;
            max-width: 400px;
        }
        .search-form input {
            flex-grow: 1;
            padding: 12px 18px;
            border: none;
            border-radius: 50px 0 0 50px;
            font-size: 1rem;
            background: rgba(255, 255, 255, 0.95);
        }
        .search-form button {
            background: var(--accent);
            color: white;
            border: none;
            border-radius: 0 50px 50px 0;
            padding: 12px 25px;
            cursor: pointer;
            font-weight: 600;
            transition: var(--transition);
        }
        .search-form button:hover {
            background: #3aa8d0;
        }
        nav {
            padding: 15px 0;
        }
        .nav-desktop {
            display: flex;
            justify-content: center;
            gap: 30px;
            list-style: none;
        }
        .nav-desktop a {
            color: white;
            text-decoration: none;
            font-weight: 600;
            font-size: 1.05rem;
            padding: 8px 15px;
            border-radius: var(--border-radius);
            transition: var(--transition);
            position: relative;
        }
        .nav-desktop a:hover {
            background: rgba(255, 255, 255, 0.15);
            transform: translateY(-2px);
        }
        .nav-desktop a.active {
            background: var(--secondary);
        }
        .hamburger {
            display: none;
            background: none;
            border: none;
            color: white;
            font-size: 1.8rem;
            cursor: pointer;
            padding: 5px;
        }
        .nav-mobile {
            display: none;
            flex-direction: column;
            background: var(--primary);
            padding: 20px;
            border-radius: 0 0 var(--border-radius) var(--border-radius);
            position: absolute;
            top: 100%;
            left: 0;
            width: 100%;
            box-shadow: var(--shadow);
            list-style: none;
        }
        .nav-mobile.active {
            display: flex;
        }
        .nav-mobile a {
            color: white;
            text-decoration: none;
            padding: 15px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.1);
            font-weight: 600;
            transition: var(--transition);
        }
        .nav-mobile a:hover {
            background: rgba(255, 255, 255, 0.1);
            padding-left: 25px;
        }
        .breadcrumb {
            background: #e9ecef;
            padding: 12px 0;
            font-size: 0.9rem;
            color: var(--gray);
            margin-bottom: 30px;
        }
        .breadcrumb a {
            color: var(--primary);
            text-decoration: none;
        }
        .breadcrumb a:hover {
            text-decoration: underline;
        }
        main {
            padding: 40px 0;
            background: white;
            border-radius: var(--border-radius);
            box-shadow: var(--shadow);
            margin-bottom: 40px;
        }
        article {
            padding: 0 30px;
        }
        h1 {
            color: var(--primary);
            font-size: 2.8rem;
            margin-bottom: 25px;
            line-height: 1.2;
            border-bottom: 3px solid var(--accent);
            padding-bottom: 15px;
        }
        h2 {
            color: var(--primary);
            font-size: 2rem;
            margin: 40px 0 20px;
            padding-bottom: 10px;
            border-bottom: 2px dashed #dee2e6;
        }
        h3 {
            color: var(--dark);
            font-size: 1.6rem;
            margin: 30px 0 15px;
        }
        h4 {
            color: var(--gray);
            font-size: 1.3rem;
            margin: 25px 0 12px;
        }
        p {
            margin-bottom: 22px;
            font-size: 1.1rem;
            text-align: justify;
        }
        .intro {
            font-size: 1.25rem;
            background: linear-gradient(to right, #f8f9fa, #e9ecef);
            padding: 25px;
            border-radius: var(--border-radius);
            border-left: 5px solid var(--accent);
            margin-bottom: 35px;
            font-weight: 500;
        }
        .highlight {
            background-color: #fff3cd;
            padding: 25px;
            border-radius: var(--border-radius);
            border-left: 5px solid #ffc107;
            margin: 30px 0;
        }
        .highlight h4 {
            color: #856404;
            margin-top: 0;
        }
        .strategic-points {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
            gap: 25px;
            margin: 35px 0;
        }
        .point-card {
            background: var(--light);
            padding: 25px;
            border-radius: var(--border-radius);
            box-shadow: var(--shadow);
            transition: var(--transition);
            border-top: 4px solid var(--primary);
        }
        .point-card:hover {
            transform: translateY(-8px);
            box-shadow: 0 10px 25px rgba(0, 0, 0, 0.12);
        }
        .point-card h4 {
            color: var(--primary);
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .point-card i {
            color: var(--secondary);
        }
        .image-container {
            margin: 40px 0;
            text-align: center;
        }
        .feature-img {
            max-width: 100%;
            height: auto;
            border-radius: var(--border-radius);
            box-shadow: 0 8px 20px rgba(0, 0, 0, 0.15);
            border: 5px solid white;
        }
        .img-caption {
            font-style: italic;
            color: var(--gray);
            margin-top: 10px;
            font-size: 0.95rem;
        }
        ul, ol {
            margin-left: 25px;
            margin-bottom: 25px;
        }
        li {
            margin-bottom: 10px;
            font-size: 1.1rem;
        }
        blockquote {
            border-left: 5px solid var(--secondary);
            padding-left: 25px;
            margin: 35px 0;
            font-style: italic;
            color: var(--gray);
            background: #f8f9fa;
            padding: 25px;
            border-radius: 0 var(--border-radius) var(--border-radius) 0;
        }
        .quote-author {
            text-align: right;
            font-weight: 600;
            color: var(--dark);
            margin-top: 15px;
        }
        .cta-box {
            background: linear-gradient(135deg, var(--primary) 0%, #1d3557 100%);
            color: white;
            padding: 40px;
            border-radius: var(--border-radius);
            text-align: center;
            margin: 50px 0;
            box-shadow: var(--shadow);
        }
        .cta-box h3 {
            color: white;
            margin-top: 0;
        }
        .btn {
            display: inline-block;
            background: var(--accent);
            color: white;
            padding: 15px 35px;
            border-radius: 50px;
            text-decoration: none;
            font-weight: 700;
            font-size: 1.1rem;
            transition: var(--transition);
            border: none;
            cursor: pointer;
            margin: 10px;
        }
        .btn:hover {
            background: #3aa8d0;
            transform: translateY(-3px);
            box-shadow: 0 7px 15px rgba(0, 0, 0, 0.2);
        }
        .btn-secondary {
            background: var(--secondary);
        }
        .btn-secondary:hover {
            background: #d32f2f;
        }
        .interactive-section {
            background: #f8f9fa;
            padding: 40px;
            border-radius: var(--border-radius);
            margin: 50px 0;
            border: 1px solid #dee2e6;
        }
        .rating-section, .comments-section {
            margin-bottom: 50px;
        }
        .rating-container {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 20px;
            margin: 25px 0;
        }
        .stars {
            display: flex;
            gap: 8px;
        }
        .star {
            font-size: 2.2rem;
            color: #ddd;
            cursor: pointer;
            transition: var(--transition);
        }
        .star:hover,
        .star.active {
            color: #ffc107;
        }
        .rating-form, .comment-form {
            background: white;
            padding: 30px;
            border-radius: var(--border-radius);
            box-shadow: var(--shadow);
            margin-top: 25px;
        }
        .form-group {
            margin-bottom: 25px;
        }
        .form-group label {
            display: block;
            margin-bottom: 10px;
            font-weight: 600;
            color: var(--dark);
        }
        .form-group input,
        .form-group textarea,
        .form-group select {
            width: 100%;
            padding: 15px;
            border: 1px solid #ced4da;
            border-radius: var(--border-radius);
            font-size: 1rem;
            transition: var(--transition);
        }
        .form-group input:focus,
        .form-group textarea:focus,
        .form-group select:focus {
            border-color: var(--accent);
            outline: none;
            box-shadow: 0 0 0 3px rgba(76, 201, 240, 0.2);
        }
        textarea {
            min-height: 150px;
            resize: vertical;
        }
        .comments-list {
            margin-top: 40px;
        }
        .comment {
            background: white;
            padding: 25px;
            border-radius: var(--border-radius);
            margin-bottom: 25px;
            box-shadow: 0 3px 10px rgba(0, 0, 0, 0.05);
            border-left: 4px solid var(--accent);
        }
        .comment-header {
            display: flex;
            justify-content: space-between;
            margin-bottom: 15px;
            flex-wrap: wrap;
        }
        .comment-author {
            font-weight: 700;
            color: var(--primary);
        }
        .comment-date {
            color: var(--gray);
            font-size: 0.9rem;
        }
        .longtail-links {
            background: #e9ecef;
            padding: 40px 0;
            margin-top: 60px;
        }
        .web-link {
            display: inline-block;
            background: white;
            margin: 10px;
            padding: 15px 25px;
            border-radius: 50px;
            box-shadow: 0 3px 10px rgba(0, 0, 0, 0.08);
            transition: var(--transition);
        }
        .web-link a {
            color: var(--primary);
            text-decoration: none;
            font-weight: 600;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .web-link:hover {
            transform: translateY(-5px);
            box-shadow: 0 7px 15px rgba(0, 0, 0, 0.12);
        }
        .web-link a:hover {
            color: var(--secondary);
        }
        .links-container {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
        }
        footer {
            background: var(--dark);
            color: white;
            padding: 50px 0 30px;
        }
        .footer-content {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 40px;
            margin-bottom: 40px;
        }
        .footer-section h4 {
            color: var(--accent);
            font-size: 1.3rem;
            margin-bottom: 25px;
            border-bottom: 2px solid rgba(255, 255, 255, 0.1);
            padding-bottom: 10px;
        }
        .footer-links {
            list-style: none;
        }
        .footer-links li {
            margin-bottom: 15px;
        }
        .footer-links a {
            color: #adb5bd;
            text-decoration: none;
            transition: var(--transition);
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .footer-links a:hover {
            color: white;
            padding-left: 10px;
        }
        .copyright {
            text-align: center;
            padding-top: 30px;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            color: #adb5bd;
            font-size: 0.95rem;
        }
        @media (max-width: 992px) {
            h1 { font-size: 2.4rem; }
            h2 { font-size: 1.8rem; }
            .strategic-points { grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); }
        }
        @media (max-width: 768px) {
            .hamburger { display: block; }
            .nav-desktop { display: none; }
            .header-top .container { flex-direction: column; gap: 20px; }
            .search-form { max-width: 100%; }
            .logo a { font-size: 2rem; }
            h1 { font-size: 2rem; }
            h2 { font-size: 1.6rem; }
            h3 { font-size: 1.4rem; }
            article { padding: 0 20px; }
            .cta-box { padding: 30px 20px; }
            .interactive-section { padding: 30px 20px; }
            .footer-content { grid-template-columns: 1fr; text-align: center; }
            .footer-links a { justify-content: center; }
        }
        @media (max-width: 576px) {
            .strategic-points { grid-template-columns: 1fr; }
            .btn { display: block; width: 100%; margin: 10px 0; }
            .rating-container { flex-direction: column; align-items: flex-start; }
            .web-link { width: 100%; margin: 10px 0; text-align: center; }
            .web-link a { justify-content: center; }
        }
        @media print {
            header, nav, .interactive-section, .longtail-links, footer, .cta-box .btn {
                display: none;
            }
            body {
                background: white;
                color: black;
                font-size: 12pt;
            }
            main {
                box-shadow: none;
                padding: 0;
            }
            a {
                color: black;
                text-decoration: underline;
            }
        }