:root {
            --primary-color: #2a4365;
            --secondary-color: #c53030;
            --accent-color: #d69e2e;
            --text-primary: #2d3748;
            --text-secondary: #4a5568;
            --light-bg: #f7fafc;
            --dark-bg: #1a202c;
            --border-color: #e2e8f0;
            --font-heading: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            --font-body: 'Open Sans', system-ui, -apple-system, sans-serif;
            --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
            --transition: all 0.3s ease;
        }
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: var(--font-body);
            line-height: 1.8;
            color: var(--text-primary);
            background-color: #fff;
            overflow-x: hidden;
        }
        .container {
            width: 100%;
            max-width: 1280px;
            margin: 0 auto;
            padding: 0 20px;
        }
        header {
            background: linear-gradient(135deg, var(--primary-color), #1a365d);
            color: white;
            box-shadow: var(--shadow);
            position: sticky;
            top: 0;
            z-index: 1000;
        }
        .header-container {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 15px 20px;
        }
        .logo a {
            font-family: var(--font-heading);
            font-size: 1.8rem;
            font-weight: 800;
            color: white;
            text-decoration: none;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .logo-icon {
            color: var(--accent-color);
            font-size: 2rem;
        }
        nav {
            display: flex;
            align-items: center;
        }
        .nav-links {
            display: flex;
            list-style: none;
            gap: 30px;
        }
        .nav-links a {
            color: white;
            text-decoration: none;
            font-weight: 600;
            font-size: 1rem;
            padding: 8px 12px;
            border-radius: 4px;
            transition: var(--transition);
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .nav-links a:hover {
            background-color: rgba(255, 255, 255, 0.15);
            transform: translateY(-2px);
        }
        .nav-icon {
            font-size: 1.1rem;
        }
        .hamburger {
            display: none;
            background: none;
            border: none;
            color: white;
            font-size: 1.8rem;
            cursor: pointer;
        }
        .breadcrumb {
            background-color: var(--light-bg);
            padding: 12px 20px;
            border-bottom: 1px solid var(--border-color);
        }
        .breadcrumb ol {
            display: flex;
            list-style: none;
            flex-wrap: wrap;
            gap: 10px;
        }
        .breadcrumb li {
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .breadcrumb a {
            color: var(--text-secondary);
            text-decoration: none;
            font-size: 0.9rem;
        }
        .breadcrumb a:hover {
            color: var(--primary-color);
            text-decoration: underline;
        }
        .breadcrumb li:not(:last-child)::after {
            content: '›';
            color: var(--text-secondary);
        }
        main {
            padding: 40px 0;
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 40px;
        }
        article {
            grid-column: 1;
        }
        aside {
            grid-column: 2;
        }
        h1 {
            font-family: var(--font-heading);
            font-size: 2.8rem;
            color: var(--primary-color);
            margin-bottom: 20px;
            line-height: 1.3;
        }
        h2 {
            font-size: 2rem;
            color: var(--primary-color);
            margin: 40px 0 20px;
            padding-bottom: 10px;
            border-bottom: 3px solid var(--accent-color);
        }
        h3 {
            font-size: 1.5rem;
            color: var(--secondary-color);
            margin: 30px 0 15px;
        }
        h4 {
            font-size: 1.2rem;
            color: var(--text-primary);
            margin: 20px 0 10px;
        }
        p {
            margin-bottom: 20px;
            font-size: 1.1rem;
            color: var(--text-secondary);
        }
        .lead {
            font-size: 1.3rem;
            color: var(--primary-color);
            font-weight: 600;
            margin-bottom: 30px;
            padding-left: 15px;
            border-left: 4px solid var(--accent-color);
        }
        .highlight {
            background-color: #fffaf0;
            border: 1px solid #fed7d7;
            border-radius: 8px;
            padding: 25px;
            margin: 30px 0;
            box-shadow: var(--shadow);
        }
        .highlight h3 {
            color: #c53030;
            margin-top: 0;
        }
        .info-box {
            background-color: #ebf8ff;
            border-left: 5px solid #4299e1;
            padding: 20px;
            margin: 25px 0;
            border-radius: 0 8px 8px 0;
        }
        .platform-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
            gap: 25px;
            margin: 30px 0;
        }
        .platform-card {
            background: white;
            border: 1px solid var(--border-color);
            border-radius: 10px;
            padding: 25px;
            transition: var(--transition);
            box-shadow: 0 2px 5px rgba(0,0,0,0.05);
        }
        .platform-card:hover {
            transform: translateY(-5px);
            box-shadow: 0 10px 20px rgba(0,0,0,0.1);
            border-color: var(--accent-color);
        }
        .platform-icon {
            font-size: 2.5rem;
            color: var(--primary-color);
            margin-bottom: 15px;
            display: block;
        }
        .step-list {
            list-style: none;
            counter-reset: step-counter;
        }
        .step-list li {
            counter-increment: step-counter;
            margin-bottom: 25px;
            padding-left: 50px;
            position: relative;
        }
        .step-list li::before {
            content: counter(step-counter);
            position: absolute;
            left: 0;
            top: 0;
            background: var(--primary-color);
            color: white;
            width: 36px;
            height: 36px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: bold;
        }
        .featured-image {
            width: 100%;
            border-radius: 12px;
            margin: 30px 0;
            box-shadow: var(--shadow);
            border: 3px solid white;
            outline: 1px solid var(--border-color);
        }
        .search-box {
            background: var(--light-bg);
            padding: 30px;
            border-radius: 10px;
            margin: 30px 0;
        }
        .search-box form {
            display: flex;
            gap: 10px;
        }
        .search-box input {
            flex-grow: 1;
            padding: 15px;
            border: 2px solid var(--border-color);
            border-radius: 6px;
            font-size: 1rem;
        }
        .search-box button {
            background: var(--primary-color);
            color: white;
            border: none;
            padding: 0 25px;
            border-radius: 6px;
            cursor: pointer;
            font-weight: 600;
            transition: var(--transition);
        }
        .search-box button:hover {
            background: #1a365d;
        }
        .rating-widget {
            background: white;
            border: 1px solid var(--border-color);
            border-radius: 10px;
            padding: 25px;
            margin: 30px 0;
            text-align: center;
        }
        .stars {
            display: flex;
            justify-content: center;
            gap: 5px;
            margin: 15px 0;
        }
        .star {
            font-size: 2rem;
            color: #cbd5e0;
            cursor: pointer;
            transition: var(--transition);
        }
        .star:hover,
        .star.active {
            color: #f6ad55;
        }
        .comment-section {
            background: white;
            border-radius: 10px;
            padding: 30px;
            margin-top: 40px;
            border: 1px solid var(--border-color);
        }
        .comment-form textarea {
            width: 100%;
            padding: 15px;
            border: 2px solid var(--border-color);
            border-radius: 6px;
            margin-bottom: 15px;
            font-family: inherit;
            resize: vertical;
            min-height: 120px;
        }
        .comment-form button {
            background: var(--secondary-color);
            color: white;
            border: none;
            padding: 12px 30px;
            border-radius: 6px;
            cursor: pointer;
            font-weight: 600;
            transition: var(--transition);
        }
        .comment-form button:hover {
            background: #9b2c2c;
        }
        aside {
            position: sticky;
            top: 120px;
            align-self: start;
        }
        .sidebar-widget {
            background: var(--light-bg);
            border-radius: 10px;
            padding: 25px;
            margin-bottom: 25px;
            border: 1px solid var(--border-color);
        }
        .related-links {
            list-style: none;
        }
        .related-links li {
            margin-bottom: 15px;
            padding-bottom: 15px;
            border-bottom: 1px dashed var(--border-color);
        }
        .related-links a {
            color: var(--primary-color);
            text-decoration: none;
            display: flex;
            align-items: center;
            gap: 10px;
            transition: var(--transition);
        }
        .related-links a:hover {
            color: var(--secondary-color);
            padding-left: 5px;
        }
        .web-links-section {
            background: var(--dark-bg);
            padding: 40px 20px;
            margin-top: 60px;
        }
        .web-links-container {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 20px;
        }
        .web-link {
            background: rgba(255, 255, 255, 0.05);
            padding: 20px;
            border-radius: 6px;
            transition: var(--transition);
        }
        .web-link:hover {
            background: rgba(255, 255, 255, 0.1);
            transform: translateY(-3px);
        }
        .web-link a {
            color: #cbd5e0;
            text-decoration: none;
            font-size: 1rem;
            display: block;
        }
        .web-link a:hover {
            color: white;
            text-decoration: underline;
        }
        footer {
            background: #0f1419;
            color: #a0aec0;
            padding: 40px 20px 20px;
            text-align: center;
        }
        .footer-container {
            max-width: 1280px;
            margin: 0 auto;
        }
        .copyright {
            margin-top: 30px;
            padding-top: 20px;
            border-top: 1px solid #2d3748;
            font-size: 0.9rem;
        }
        @media (max-width: 1024px) {
            main {
                grid-template-columns: 1fr;
                gap: 30px;
            }
            aside {
                grid-column: 1;
                position: static;
            }
        }
        @media (max-width: 768px) {
            .header-container {
                flex-wrap: wrap;
            }
            .nav-links {
                display: none;
                width: 100%;
                flex-direction: column;
                gap: 0;
                margin-top: 20px;
            }
            .nav-links.active {
                display: flex;
            }
            .hamburger {
                display: block;
            }
            h1 {
                font-size: 2.2rem;
            }
            h2 {
                font-size: 1.8rem;
            }
            .platform-grid {
                grid-template-columns: 1fr;
            }
            .search-box form {
                flex-direction: column;
            }
            .breadcrumb ol {
                font-size: 0.85rem;
            }
        }
        .emoji {
            font-size: 1.2em;
            margin-right: 5px;
        }
        .keyword {
            color: var(--primary-color);
            font-weight: 700;
        }
        .external-link {
            color: var(--secondary-color);
            text-decoration: underline;
            font-weight: 600;
        }
        .btn {
            display: inline-block;
            padding: 12px 24px;
            background: var(--primary-color);
            color: white;
            text-decoration: none;
            border-radius: 6px;
            font-weight: 600;
            transition: var(--transition);
            border: none;
            cursor: pointer;
        }
        .btn:hover {
            background: #1a365d;
            transform: translateY(-2px);
            box-shadow: var(--shadow);
        }
        .text-center { text-align: center; }
        .mb-20 { margin-bottom: 20px; }
        .mt-40 { margin-top: 40px; }
        .p-20 { padding: 20px; }