:root {
            --primary: #FF6B35;
            --secondary: #004E89;
            --accent: #00A896;
            --dark: #1A1A2E;
            --light: #F8F9FA;
            --gray: #6C757D;
            --shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
            --radius: 8px;
            --transition: all 0.3s ease;
        }
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
            font-size: 16px;
        }
        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            line-height: 1.8;
            color: #333;
            background-color: #fff;
            overflow-x: hidden;
        }
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        .site-header {
            background: linear-gradient(135deg, var(--dark) 0%, #16213E 100%);
            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 a {
            font-family: 'Arial Black', sans-serif;
            font-size: 2rem;
            color: var(--primary);
            text-decoration: none;
            display: flex;
            align-items: center;
            gap: 10px;
            letter-spacing: 1px;
        }
        .logo a:hover {
            color: white;
        }
        .logo .fa-bomb {
            font-size: 2.2rem;
        }
        .breadcrumb {
            background: rgba(255, 255, 255, 0.05);
            padding: 0.8rem;
            border-radius: var(--radius);
            margin-top: 0.5rem;
            font-size: 0.9rem;
        }
        .breadcrumb a {
            color: #ccc;
            text-decoration: none;
        }
        .breadcrumb a:hover {
            color: var(--primary);
        }
        .breadcrumb span {
            color: var(--gray);
            margin: 0 8px;
        }
        .menu-toggle {
            display: none;
            background: none;
            border: none;
            color: white;
            font-size: 1.8rem;
            cursor: pointer;
            padding: 5px;
        }
        .nav-menu {
            display: flex;
            gap: 2rem;
            list-style: none;
        }
        .nav-menu a {
            color: white;
            text-decoration: none;
            font-weight: 600;
            padding: 0.5rem 1rem;
            border-radius: var(--radius);
            transition: var(--transition);
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .nav-menu a:hover,
        .nav-menu a.active {
            background-color: var(--primary);
            color: var(--dark);
        }
        .search-container {
            background: var(--light);
            padding: 2rem 0;
            border-bottom: 3px solid var(--secondary);
        }
        .search-form {
            max-width: 600px;
            margin: 0 auto;
            display: flex;
            border-radius: 50px;
            overflow: hidden;
            box-shadow: var(--shadow);
        }
        .search-input {
            flex: 1;
            padding: 1rem 1.5rem;
            border: none;
            font-size: 1rem;
            outline: none;
        }
        .search-btn {
            background: var(--secondary);
            color: white;
            border: none;
            padding: 0 2rem;
            cursor: pointer;
            font-weight: bold;
            transition: var(--transition);
        }
        .search-btn:hover {
            background: var(--primary);
        }
        main {
            padding: 3rem 0;
            background: #fff;
        }
        .article-header {
            text-align: center;
            margin-bottom: 3rem;
            padding-bottom: 2rem;
            border-bottom: 2px dashed var(--accent);
        }
        .article-header h1 {
            font-size: 2.8rem;
            color: var(--dark);
            margin-bottom: 1rem;
            line-height: 1.3;
        }
        .meta-info {
            display: flex;
            justify-content: center;
            gap: 2rem;
            color: var(--gray);
            font-size: 0.95rem;
            flex-wrap: wrap;
        }
        .meta-info span {
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .content-grid {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 3rem;
        }
        @media (max-width: 992px) {
            .content-grid {
                grid-template-columns: 1fr;
            }
        }
        .article-content {
            font-size: 1.1rem;
        }
        .article-content h2 {
            color: var(--secondary);
            margin: 2.5rem 0 1.5rem;
            padding-bottom: 0.5rem;
            border-bottom: 2px solid var(--primary);
            font-size: 2rem;
        }
        .article-content h3 {
            color: var(--dark);
            margin: 2rem 0 1rem;
            font-size: 1.6rem;
        }
        .article-content p {
            margin-bottom: 1.5rem;
            text-align: justify;
        }
        .article-content strong {
            color: var(--primary);
            font-weight: 700;
        }
        .article-content emoji {
            font-size: 1.2em;
            margin-right: 5px;
        }
        .highlight-box {
            background: linear-gradient(to right, #f8f9fa, #e9ecef);
            border-left: 5px solid var(--accent);
            padding: 1.5rem;
            margin: 2rem 0;
            border-radius: 0 var(--radius) var(--radius) 0;
        }
        .feature-image {
            width: 100%;
            border-radius: var(--radius);
            overflow: hidden;
            margin: 2rem 0;
            box-shadow: var(--shadow);
        }
        .feature-image img {
            width: 100%;
            height: auto;
            display: block;
            transition: transform 0.5s ease;
        }
        .feature-image:hover img {
            transform: scale(1.03);
        }
        .image-caption {
            text-align: center;
            font-style: italic;
            color: var(--gray);
            padding: 0.5rem;
            font-size: 0.95rem;
        }
        .sidebar {
            background: var(--light);
            padding: 1.5rem;
            border-radius: var(--radius);
            box-shadow: var(--shadow);
            align-self: start;
            position: sticky;
            top: 120px;
        }
        .sidebar h3 {
            color: var(--secondary);
            margin-bottom: 1.5rem;
            padding-bottom: 0.5rem;
            border-bottom: 1px solid #ddd;
        }
        .toc {
            list-style: none;
            margin-bottom: 2rem;
        }
        .toc li {
            margin-bottom: 0.8rem;
        }
        .toc a {
            color: var(--dark);
            text-decoration: none;
            display: block;
            padding: 0.5rem;
            border-radius: 4px;
            transition: var(--transition);
        }
        .toc a:hover {
            background: rgba(0, 78, 137, 0.1);
            color: var(--secondary);
            padding-left: 1rem;
        }
        .interactive-section {
            background: #f8f9fa;
            padding: 3rem 0;
            margin-top: 3rem;
            border-top: 3px solid var(--primary);
        }
        .interactive-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 2rem;
            margin-top: 2rem;
        }
        .interactive-card {
            background: white;
            padding: 2rem;
            border-radius: var(--radius);
            box-shadow: var(--shadow);
            transition: var(--transition);
        }
        .interactive-card:hover {
            transform: translateY(-5px);
            box-shadow: 0 8px 20px rgba(0, 0, 0, 0.15);
        }
        .rating-stars {
            display: flex;
            gap: 5px;
            margin: 1rem 0;
            font-size: 1.5rem;
            color: #FFD700;
        }
        .rating-stars .far {
            color: #ddd;
        }
        .form-group {
            margin-bottom: 1.5rem;
        }
        .form-group label {
            display: block;
            margin-bottom: 0.5rem;
            font-weight: 600;
            color: var(--dark);
        }
        .form-control {
            width: 100%;
            padding: 0.8rem 1rem;
            border: 2px solid #ddd;
            border-radius: var(--radius);
            font-size: 1rem;
            transition: var(--transition);
        }
        .form-control:focus {
            border-color: var(--accent);
            outline: none;
        }
        .btn {
            background: var(--primary);
            color: white;
            border: none;
            padding: 0.8rem 2rem;
            border-radius: var(--radius);
            font-weight: bold;
            cursor: pointer;
            transition: var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 10px;
        }
        .btn:hover {
            background: var(--secondary);
            transform: translateY(-2px);
        }
        .btn-secondary {
            background: var(--secondary);
        }
        .btn-secondary:hover {
            background: var(--primary);
        }
        .long-tail-links {
            background: var(--dark);
            padding: 2.5rem 0;
            margin-top: 3rem;
        }
        .web-links-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
            gap: 1.5rem;
        }
        .web-link {
            background: rgba(255, 255, 255, 0.05);
            padding: 1.2rem;
            border-radius: var(--radius);
            transition: var(--transition);
        }
        .web-link:hover {
            background: rgba(255, 255, 255, 0.1);
            transform: translateX(5px);
        }
        .web-link a {
            color: #fff;
            text-decoration: none;
            display: block;
            font-size: 1rem;
        }
        .web-link a:hover {
            color: var(--primary);
        }
        .site-footer {
            background: #111;
            color: #aaa;
            padding: 3rem 0 1.5rem;
        }
        .footer-content {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 2rem;
            margin-bottom: 2rem;
        }
        .footer-section h4 {
            color: white;
            margin-bottom: 1.5rem;
            font-size: 1.2rem;
        }
        .footer-links {
            list-style: none;
        }
        .footer-links li {
            margin-bottom: 0.8rem;
        }
        .footer-links a {
            color: #ccc;
            text-decoration: none;
            transition: var(--transition);
        }
        .footer-links a:hover {
            color: var(--primary);
            padding-left: 5px;
        }
        .copyright {
            text-align: center;
            padding-top: 1.5rem;
            border-top: 1px solid #333;
            font-size: 0.9rem;
            color: #777;
        }
        @media (max-width: 768px) {
            .header-content {
                flex-wrap: wrap;
            }
            .menu-toggle {
                display: block;
            }
            .nav-menu {
                display: none;
                flex-direction: column;
                width: 100%;
                margin-top: 1rem;
                background: rgba(26, 26, 46, 0.95);
                padding: 1rem;
                border-radius: var(--radius);
            }
            .nav-menu.active {
                display: flex;
            }
            .article-header h1 {
                font-size: 2rem;
            }
            .meta-info {
                flex-direction: column;
                gap: 1rem;
                align-items: center;
            }
            .content-grid {
                gap: 2rem;
            }
        }
        @media (max-width: 480px) {
            html {
                font-size: 14px;
            }
            .article-header h1 {
                font-size: 1.8rem;
            }
            .interactive-grid {
                grid-template-columns: 1fr;
            }
            .search-form {
                flex-direction: column;
                border-radius: var(--radius);
            }
            .search-input, .search-btn {
                width: 100%;
                border-radius: var(--radius);
                margin-bottom: 0.5rem;
            }
        }
        @keyframes fadeIn {
            from { opacity: 0; transform: translateY(20px); }
            to { opacity: 1; transform: translateY(0); }
        }
        .fade-in {
            animation: fadeIn 0.6s ease-out;
        }
        .text-center { text-align: center; }
        .mb-1 { margin-bottom: 1rem; }
        .mb-2 { margin-bottom: 2rem; }
        .mt-2 { margin-top: 2rem; }
        .py-2 { padding-top: 2rem; padding-bottom: 2rem; }