* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        :root {
            --primary: #FF6B35;
            --secondary: #004E89;
            --accent: #00A6A6;
            --dark: #1A1A2E;
            --light: #F8F9FA;
            --gray: #6C757D;
            --success: #28A745;
            --warning: #FFC107;
            --transition: all 0.3s ease;
            --shadow: 0 4px 12px rgba(0,0,0,0.1);
            --radius: 8px;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            line-height: 1.7;
            color: #333;
            background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
            min-height: 100vh;
        }
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        .main-header {
            background: var(--dark);
            color: white;
            padding: 1rem 0;
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: var(--shadow);
        }
        .header-content {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .logo {
            font-size: 2rem;
            font-weight: 800;
            text-decoration: none;
            color: var(--primary);
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .logo span {
            color: white;
            background: var(--primary);
            padding: 5px 10px;
            border-radius: var(--radius);
        }
        .nav-desktop {
            display: flex;
            gap: 2rem;
        }
        @media (max-width: 768px) {
            .nav-desktop {
                display: none;
            }
        }
        .nav-link {
            color: white;
            text-decoration: none;
            font-weight: 600;
            padding: 8px 16px;
            border-radius: var(--radius);
            transition: var(--transition);
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .nav-link:hover {
            background: var(--primary);
            transform: translateY(-2px);
        }
        .hamburger {
            display: none;
            background: none;
            border: none;
            color: white;
            font-size: 1.8rem;
            cursor: pointer;
            padding: 5px;
        }
        @media (max-width: 768px) {
            .hamburger {
                display: block;
            }
        }
        .nav-mobile {
            position: fixed;
            top: 70px;
            left: 0;
            width: 100%;
            background: var(--dark);
            flex-direction: column;
            padding: 1rem;
            display: none;
            box-shadow: var(--shadow);
            z-index: 999;
        }
        .nav-mobile.active {
            display: flex;
        }
        .breadcrumb {
            padding: 1rem 0;
            background: var(--light);
            margin-bottom: 2rem;
            border-bottom: 2px solid var(--primary);
        }
        .breadcrumb-links {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            align-items: center;
        }
        .breadcrumb-links a {
            color: var(--secondary);
            text-decoration: none;
            transition: var(--transition);
        }
        .breadcrumb-links a:hover {
            color: var(--primary);
            text-decoration: underline;
        }
        .breadcrumb-separator {
            color: var(--gray);
        }
        .main-content {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 2rem;
            margin: 2rem 0;
        }
        @media (max-width: 992px) {
            .main-content {
                grid-template-columns: 1fr;
            }
        }
        .article-container {
            background: white;
            border-radius: var(--radius);
            padding: 2rem;
            box-shadow: var(--shadow);
        }
        .article-header {
            margin-bottom: 2rem;
            border-bottom: 3px solid var(--primary);
            padding-bottom: 1rem;
        }
        .article-title {
            font-size: 2.5rem;
            color: var(--dark);
            margin-bottom: 1rem;
            line-height: 1.3;
        }
        .meta-info {
            display: flex;
            flex-wrap: wrap;
            gap: 1rem;
            color: var(--gray);
            font-size: 0.9rem;
        }
        .meta-item {
            display: flex;
            align-items: center;
            gap: 5px;
        }
        .featured-image {
            width: 100%;
            height: 400px;
            object-fit: cover;
            border-radius: var(--radius);
            margin: 2rem 0;
            border: 5px solid var(--primary);
        }
        .content-section {
            margin: 3rem 0;
        }
        h2 {
            color: var(--secondary);
            font-size: 2rem;
            margin: 2rem 0 1rem;
            padding-bottom: 0.5rem;
            border-bottom: 2px solid var(--accent);
        }
        h3 {
            color: var(--dark);
            font-size: 1.5rem;
            margin: 1.5rem 0 1rem;
        }
        p {
            margin-bottom: 1.5rem;
            font-size: 1.1rem;
            text-align: justify;
        }
        .highlight {
            background: linear-gradient(120deg, #FF6B35 0%, #FF8E53 100%);
            color: white;
            padding: 2rem;
            border-radius: var(--radius);
            margin: 2rem 0;
            position: relative;
            overflow: hidden;
        }
        .highlight::before {
            content: "⚠️";
            position: absolute;
            top: 10px;
            right: 10px;
            font-size: 2rem;
            opacity: 0.2;
        }
        .step-box {
            background: var(--light);
            border-left: 5px solid var(--accent);
            padding: 1.5rem;
            margin: 1.5rem 0;
            border-radius: 0 var(--radius) var(--radius) 0;
        }
        .step-number {
            display: inline-block;
            background: var(--accent);
            color: white;
            width: 40px;
            height: 40px;
            border-radius: 50%;
            text-align: center;
            line-height: 40px;
            font-weight: bold;
            margin-right: 10px;
        }
        .spec-table {
            width: 100%;
            border-collapse: collapse;
            margin: 2rem 0;
            box-shadow: var(--shadow);
        }
        .spec-table th {
            background: var(--secondary);
            color: white;
            padding: 1rem;
            text-align: left;
        }
        .spec-table td {
            padding: 1rem;
            border-bottom: 1px solid #ddd;
        }
        .spec-table tr:nth-child(even) {
            background: var(--light);
        }
        .btn {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            padding: 12px 24px;
            background: var(--primary);
            color: white;
            text-decoration: none;
            border-radius: var(--radius);
            font-weight: 600;
            border: none;
            cursor: pointer;
            transition: var(--transition);
            margin: 10px 5px;
        }
        .btn:hover {
            background: var(--secondary);
            transform: translateY(-3px);
            box-shadow: 0 6px 15px rgba(0,0,0,0.2);
        }
        .btn-secondary {
            background: var(--secondary);
        }
        .btn-secondary:hover {
            background: var(--dark);
        }
        .sidebar {
            display: flex;
            flex-direction: column;
            gap: 2rem;
        }
        .sidebar-widget {
            background: white;
            padding: 1.5rem;
            border-radius: var(--radius);
            box-shadow: var(--shadow);
        }
        .widget-title {
            color: var(--secondary);
            margin-bottom: 1rem;
            padding-bottom: 0.5rem;
            border-bottom: 2px solid var(--primary);
        }
        .search-box {
            position: relative;
        }
        .search-input {
            width: 100%;
            padding: 12px 45px 12px 15px;
            border: 2px solid var(--accent);
            border-radius: var(--radius);
            font-size: 1rem;
        }
        .search-btn {
            position: absolute;
            right: 5px;
            top: 50%;
            transform: translateY(-50%);
            background: var(--accent);
            color: white;
            border: none;
            width: 35px;
            height: 35px;
            border-radius: var(--radius);
            cursor: pointer;
        }
        .rating-container {
            text-align: center;
        }
        .stars {
            display: flex;
            justify-content: center;
            gap: 5px;
            margin: 1rem 0;
        }
        .star {
            font-size: 2rem;
            color: #ddd;
            cursor: pointer;
            transition: var(--transition);
        }
        .star:hover,
        .star.active {
            color: var(--warning);
        }
        .comment-form input,
        .comment-form textarea {
            width: 100%;
            padding: 12px;
            margin-bottom: 1rem;
            border: 1px solid #ddd;
            border-radius: var(--radius);
            font-family: inherit;
        }
        .comment-form textarea {
            height: 150px;
            resize: vertical;
        }
        .web-links-container {
            background: var(--dark);
            padding: 3rem 0;
            margin-top: 3rem;
        }
        .web-links {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 1.5rem;
        }
        .web-link {
            background: rgba(255,255,255,0.1);
            padding: 1rem;
            border-radius: var(--radius);
            transition: var(--transition);
        }
        .web-link:hover {
            background: rgba(255,255,255,0.2);
            transform: translateX(5px);
        }
        .web-link a {
            color: white;
            text-decoration: none;
            display: block;
            font-size: 1.1rem;
        }
        .web-link a:hover {
            color: var(--primary);
        }
        .main-footer {
            background: #111;
            color: white;
            padding: 3rem 0 1rem;
        }
        .footer-content {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 2rem;
            margin-bottom: 2rem;
        }
        .footer-logo {
            font-size: 1.8rem;
            color: var(--primary);
            font-weight: 800;
            margin-bottom: 1rem;
        }
        .copyright {
            text-align: center;
            padding-top: 2rem;
            border-top: 1px solid #333;
            color: #aaa;
            font-size: 0.9rem;
        }
        @media (max-width: 768px) {
            .article-title {
                font-size: 1.8rem;
            }
            .featured-image {
                height: 250px;
            }
            .spec-table {
                display: block;
                overflow-x: auto;
            }
            .btn {
                width: 100%;
                justify-content: center;
                margin: 5px 0;
            }
        }
        @keyframes fadeIn {
            from { opacity: 0; transform: translateY(20px); }
            to { opacity: 1; transform: translateY(0); }
        }
        .fade-in {
            animation: fadeIn 0.6s ease-out;
        }
        @media print {
            .sidebar, .main-header, .web-links-container, .main-footer {
                display: none;
            }
        }