:root {
            --primary: #1a73e8;
            --primary-dark: #0d47a1;
            --secondary: #e53935;
            --dark: #121212;
            --darker: #0a0a0a;
            --light: #f5f5f5;
            --grey: #333;
            --grey-light: #444;
            --border-radius: 8px;
            --transition: all 0.3s ease;
            --shadow: 0 4px 12px rgba(0, 0, 0, 0.5);
            --max-width: 1200px;
        }
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            line-height: 1.7;
            color: #ddd;
            background-color: var(--darker);
            padding-top: 70px;
        }
        a {
            color: var(--primary);
            text-decoration: none;
            transition: var(--transition);
        }
        a:hover {
            color: var(--secondary);
        }
        img {
            max-width: 100%;
            height: auto;
            border-radius: var(--border-radius);
        }
        .container {
            width: 100%;
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 20px;
        }
        header {
            background-color: rgba(18, 18, 18, 0.95);
            border-bottom: 1px solid var(--grey);
            position: fixed;
            top: 0;
            width: 100%;
            z-index: 1000;
            backdrop-filter: blur(10px);
        }
        .header-container {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 15px 20px;
        }
        .my-logo {
            font-size: 1.8rem;
            font-weight: 800;
            color: white;
            text-transform: uppercase;
            letter-spacing: 2px;
            background: linear-gradient(90deg, var(--primary), #00c6ff);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }
        .my-logo:hover {
            opacity: 0.9;
        }
        nav {
            display: flex;
            align-items: center;
        }
        .nav-links {
            display: flex;
            list-style: none;
            gap: 25px;
        }
        .nav-links a {
            color: #ccc;
            font-weight: 500;
        }
        .nav-links a:hover {
            color: white;
        }
        .burger {
            display: none;
            cursor: pointer;
            font-size: 1.5rem;
            color: white;
        }
        .breadcrumb {
            background-color: var(--grey);
            padding: 12px 20px;
            font-size: 0.9rem;
            margin-bottom: 30px;
        }
        .breadcrumb a {
            color: #aaa;
        }
        .breadcrumb a:last-of-type {
            color: var(--primary);
        }
        .breadcrumb i {
            margin: 0 8px;
        }
        .hero {
            text-align: center;
            padding: 40px 0;
            background: linear-gradient(rgba(0,0,0,0.7), rgba(0,0,0,0.7)), url('https://images.unsplash.com/photo-1593941707882-a5bba5338fe2?ixlib=rb-4.0.3&auto=format&fit=crop&w=1200&q=80') center/cover no-repeat;
            border-radius: var(--border-radius);
            margin-bottom: 40px;
        }
        h1 {
            font-size: 3rem;
            margin-bottom: 20px;
            color: white;
            line-height: 1.2;
        }
        .hero p {
            font-size: 1.2rem;
            max-width: 800px;
            margin: 0 auto 30px;
            color: #ccc;
        }
        .search-box {
            max-width: 600px;
            margin: 30px auto;
            background: rgba(255,255,255,0.05);
            padding: 25px;
            border-radius: var(--border-radius);
        }
        .search-box h2 {
            margin-bottom: 15px;
            color: white;
        }
        .search-form {
            display: flex;
            gap: 10px;
        }
        .search-form input {
            flex: 1;
            padding: 15px;
            border: 2px solid var(--grey-light);
            background: var(--dark);
            color: white;
            border-radius: var(--border-radius);
            font-size: 1rem;
        }
        .search-form button {
            padding: 0 25px;
            background: var(--primary);
            color: white;
            border: none;
            border-radius: var(--border-radius);
            cursor: pointer;
            font-weight: bold;
            transition: var(--transition);
        }
        .search-form button:hover {
            background: var(--primary-dark);
        }
        .content-grid {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 40px;
            margin: 40px 0;
        }
        @media (max-width: 992px) {
            .content-grid {
                grid-template-columns: 1fr;
            }
        }
        main article {
            background: var(--dark);
            padding: 30px;
            border-radius: var(--border-radius);
            box-shadow: var(--shadow);
            margin-bottom: 30px;
        }
        h2 {
            font-size: 2.2rem;
            color: white;
            margin: 40px 0 20px;
            padding-bottom: 10px;
            border-bottom: 2px solid var(--primary);
        }
        h3 {
            font-size: 1.8rem;
            color: #eee;
            margin: 30px 0 15px;
        }
        h4 {
            font-size: 1.4rem;
            color: #ddd;
            margin: 25px 0 10px;
        }
        p {
            margin-bottom: 20px;
            font-size: 1.1rem;
        }
        .highlight {
            background: rgba(26, 115, 232, 0.1);
            border-left: 4px solid var(--primary);
            padding: 20px;
            margin: 25px 0;
            border-radius: 0 var(--border-radius) var(--border-radius) 0;
        }
        .price-card {
            background: linear-gradient(135deg, #1a237e, #311b92);
            color: white;
            padding: 25px;
            border-radius: var(--border-radius);
            text-align: center;
            margin: 25px 0;
            box-shadow: var(--shadow);
        }
        .price-card h3 {
            color: white;
            border: none;
        }
        .price-amount {
            font-size: 3rem;
            font-weight: 800;
            margin: 15px 0;
        }
        .cta-button {
            display: inline-block;
            background: var(--secondary);
            color: white;
            padding: 15px 30px;
            border-radius: 50px;
            font-weight: bold;
            text-transform: uppercase;
            letter-spacing: 1px;
            margin-top: 15px;
            border: none;
            cursor: pointer;
            transition: var(--transition);
        }
        .cta-button:hover {
            background: #c62828;
            transform: translateY(-3px);
            box-shadow: 0 6px 15px rgba(229, 57, 53, 0.3);
        }
        aside {
            background: var(--dark);
            padding: 25px;
            border-radius: var(--border-radius);
            box-shadow: var(--shadow);
            align-self: start;
            position: sticky;
            top: 100px;
        }
        .sidebar-widget {
            margin-bottom: 30px;
        }
        .sidebar-widget h3 {
            font-size: 1.4rem;
            margin-bottom: 15px;
            color: white;
        }
        .related-links ul {
            list-style: none;
        }
        .related-links li {
            margin-bottom: 12px;
            padding-bottom: 12px;
            border-bottom: 1px solid var(--grey-light);
        }
        .user-interaction {
            background: var(--dark);
            padding: 30px;
            border-radius: var(--border-radius);
            margin: 40px 0;
            box-shadow: var(--shadow);
        }
        .rating-widget {
            text-align: center;
            margin-bottom: 30px;
        }
        .stars {
            font-size: 2rem;
            color: gold;
            margin: 15px 0;
            cursor: pointer;
        }
        .stars i {
            margin: 0 5px;
            transition: var(--transition);
        }
        .stars i:hover {
            transform: scale(1.2);
        }
        .comment-form textarea, .comment-form input {
            width: 100%;
            padding: 15px;
            margin-bottom: 15px;
            background: var(--grey);
            border: 1px solid var(--grey-light);
            border-radius: var(--border-radius);
            color: white;
            font-size: 1rem;
        }
        .comment-form button {
            background: var(--primary);
            color: white;
            border: none;
            padding: 15px 30px;
            border-radius: var(--border-radius);
            cursor: pointer;
            font-weight: bold;
        }
        .comment-form button:hover {
            background: var(--primary-dark);
        }
        footer {
            background: var(--dark);
            border-top: 1px solid var(--grey);
            padding: 40px 0 20px;
            margin-top: 60px;
        }
        .footer-content {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 40px;
            margin-bottom: 40px;
        }
        friend-link {
            display: block;
            margin: 10px 0;
        }
        .copyright {
            text-align: center;
            padding-top: 20px;
            border-top: 1px solid var(--grey);
            color: #aaa;
            font-size: 0.9rem;
        }
        .update-time {
            color: #aaa;
            font-style: italic;
            font-size: 0.9rem;
            margin-top: 40px;
            text-align: right;
        }
        @media (max-width: 768px) {
            body {
                padding-top: 60px;
            }
            h1 {
                font-size: 2.2rem;
            }
            h2 {
                font-size: 1.8rem;
            }
            .nav-links {
                position: fixed;
                top: 70px;
                left: 0;
                background: var(--dark);
                width: 100%;
                flex-direction: column;
                align-items: center;
                padding: 20px 0;
                clip-path: polygon(0 0, 100% 0, 100% 0, 0 0);
                transition: var(--transition);
                border-top: 1px solid var(--grey);
            }
            .nav-links.active {
                clip-path: polygon(0 0, 100% 0, 100% 100%, 0 100%);
            }
            .burger {
                display: block;
            }
            .search-form {
                flex-direction: column;
            }
            .search-form button {
                width: 100%;
                padding: 15px;
            }
        }