* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
        }
        :root {
            --primary: #1a365d;
            --secondary: #e53e3e;
            --accent: #f6ad55;
            --light: #f7fafc;
            --dark: #2d3748;
            --text: #4a5568;
            --border: #e2e8f0;
            --success: #38a169;
            --shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            color: var(--text);
            line-height: 1.7;
            background-color: var(--light);
            overflow-x: hidden;
        }
        a {
            color: var(--primary);
            text-decoration: none;
            transition: all 0.3s ease;
        }
        a:hover {
            color: var(--secondary);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        .btn {
            display: inline-block;
            padding: 12px 28px;
            background: var(--primary);
            color: white;
            border-radius: 6px;
            font-weight: 600;
            border: none;
            cursor: pointer;
            transition: all 0.3s;
        }
        .btn:hover {
            background: var(--secondary);
            transform: translateY(-3px);
            box-shadow: var(--shadow);
        }
        .section {
            padding: 80px 0;
        }
        header {
            background: white;
            box-shadow: 0 2px 10px rgba(0,0,0,0.05);
            position: sticky;
            top: 0;
            z-index: 1000;
        }
        .header-container {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 15px 20px;
        }
        .my-logo {
            font-size: 28px;
            font-weight: 800;
            color: var(--primary);
            text-transform: uppercase;
            letter-spacing: 1px;
        }
        .my-logo span {
            color: var(--secondary);
        }
        .desktop-nav ul {
            display: flex;
            list-style: none;
            gap: 30px;
        }
        .desktop-nav a {
            font-weight: 600;
            font-size: 16px;
            padding: 8px 0;
            position: relative;
        }
        .desktop-nav a::after {
            content: '';
            position: absolute;
            width: 0;
            height: 3px;
            background: var(--secondary);
            bottom: 0;
            left: 0;
            transition: width 0.3s;
        }
        .desktop-nav a:hover::after {
            width: 100%;
        }
        .mobile-toggle {
            display: none;
            font-size: 24px;
            cursor: pointer;
            color: var(--primary);
        }
        .mobile-nav {
            display: none;
            background: white;
            position: absolute;
            top: 70px;
            left: 0;
            width: 100%;
            box-shadow: 0 10px 15px rgba(0,0,0,0.1);
            padding: 20px;
        }
        .mobile-nav.active {
            display: block;
        }
        .mobile-nav ul {
            list-style: none;
        }
        .mobile-nav li {
            margin-bottom: 15px;
        }
        .mobile-nav a {
            font-size: 18px;
            font-weight: 600;
            display: block;
            padding: 10px;
            border-bottom: 1px solid var(--border);
        }
        .breadcrumb {
            background: #edf2f7;
            padding: 15px 20px;
            font-size: 14px;
        }
        .breadcrumb a {
            color: var(--primary);
        }
        .breadcrumb span {
            margin: 0 5px;
            color: var(--text);
        }
        .hero {
            background: linear-gradient(135deg, var(--primary) 0%, #2c5282 100%);
            color: white;
            padding: 100px 0;
            text-align: center;
        }
        .hero h1 {
            font-size: 3.2rem;
            margin-bottom: 20px;
            line-height: 1.2;
        }
        .hero p {
            font-size: 1.2rem;
            max-width: 800px;
            margin: 0 auto 30px;
            opacity: 0.9;
        }
        .search-box {
            max-width: 600px;
            margin: 40px auto;
            background: white;
            padding: 25px;
            border-radius: 10px;
            box-shadow: var(--shadow);
        }
        .search-box h2 {
            margin-bottom: 20px;
            color: var(--primary);
            text-align: center;
        }
        .search-form {
            display: flex;
        }
        .search-input {
            flex: 1;
            padding: 15px;
            border: 2px solid var(--border);
            border-radius: 6px 0 0 6px;
            font-size: 16px;
        }
        .search-btn {
            background: var(--secondary);
            color: white;
            border: none;
            padding: 0 25px;
            border-radius: 0 6px 6px 0;
            cursor: pointer;
            font-size: 16px;
            font-weight: 600;
        }
        .content-grid {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 40px;
            padding: 40px 0;
        }
        .main-content {
            background: white;
            padding: 40px;
            border-radius: 10px;
            box-shadow: var(--shadow);
        }
        .sidebar {
            background: white;
            padding: 25px;
            border-radius: 10px;
            box-shadow: var(--shadow);
            align-self: start;
        }
        h1, h2, h3, h4 {
            color: var(--dark);
            margin-bottom: 20px;
            line-height: 1.3;
        }
        h1 {
            font-size: 2.8rem;
            border-bottom: 3px solid var(--accent);
            padding-bottom: 15px;
        }
        h2 {
            font-size: 2.2rem;
            margin-top: 50px;
            color: var(--primary);
            padding-bottom: 10px;
            border-bottom: 1px solid var(--border);
        }
        h3 {
            font-size: 1.8rem;
            margin-top: 40px;
            color: var(--secondary);
        }
        h4 {
            font-size: 1.4rem;
            margin-top: 30px;
            color: var(--dark);
        }
        p {
            margin-bottom: 20px;
            font-size: 1.1rem;
        }
        .lead {
            font-size: 1.3rem;
            font-weight: 500;
            color: var(--primary);
            background: #f0f9ff;
            padding: 20px;
            border-left: 5px solid var(--accent);
            border-radius: 0 8px 8px 0;
            margin: 30px 0;
        }
        .highlight {
            background: #fff9db;
            padding: 3px 6px;
            border-radius: 4px;
            font-weight: 600;
        }
        .card-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
            gap: 25px;
            margin: 40px 0;
        }
        .card {
            background: white;
            border-radius: 10px;
            overflow: hidden;
            box-shadow: 0 5px 15px rgba(0,0,0,0.05);
            transition: transform 0.3s, box-shadow 0.3s;
        }
        .card:hover {
            transform: translateY(-10px);
            box-shadow: 0 15px 30px rgba(0,0,0,0.1);
        }
        .card-content {
            padding: 20px;
        }
        .comment-section, .rating-section {
            background: white;
            padding: 30px;
            border-radius: 10px;
            box-shadow: var(--shadow);
            margin: 40px 0;
        }
        .comment-form, .rating-form {
            display: flex;
            flex-direction: column;
            gap: 20px;
        }
        .form-group {
            display: flex;
            flex-direction: column;
        }
        .form-group label {
            margin-bottom: 8px;
            font-weight: 600;
            color: var(--dark);
        }
        .form-input, .form-textarea {
            padding: 12px;
            border: 2px solid var(--border);
            border-radius: 6px;
            font-size: 16px;
        }
        .form-textarea {
            min-height: 150px;
            resize: vertical;
        }
        .stars {
            display: flex;
            gap: 10px;
            font-size: 24px;
            color: #e2e8f0;
            cursor: pointer;
            margin-bottom: 20px;
        }
        .stars .star {
            transition: color 0.2s;
        }
        .stars .star:hover,
        .stars .star.active {
            color: #f6ad55;
        }
        footer {
            background: var(--dark);
            color: white;
            padding: 60px 0 30px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 40px;
            margin-bottom: 40px;
        }
        .footer-col h3 {
            color: white;
            font-size: 1.5rem;
            margin-bottom: 25px;
        }
        .footer-col ul {
            list-style: none;
        }
        .footer-col li {
            margin-bottom: 12px;
        }
        .footer-col a {
            color: #cbd5e0;
        }
        .footer-col a:hover {
            color: white;
        }
        friend-link {
            display: block;
            background: rgba(255,255,255,0.05);
            padding: 15px;
            border-radius: 6px;
            margin-bottom: 10px;
            transition: background 0.3s;
        }
        friend-link:hover {
            background: rgba(255,255,255,0.1);
        }
        .copyright {
            text-align: center;
            padding-top: 30px;
            border-top: 1px solid rgba(255,255,255,0.1);
            color: #a0aec0;
            font-size: 14px;
        }
        @media (max-width: 992px) {
            .content-grid {
                grid-template-columns: 1fr;
            }
            .hero h1 {
                font-size: 2.5rem;
            }
        }
        @media (max-width: 768px) {
            .desktop-nav {
                display: none;
            }
            .mobile-toggle {
                display: block;
            }
            .hero {
                padding: 70px 0;
            }
            .hero h1 {
                font-size: 2rem;
            }
            h2 {
                font-size: 1.8rem;
            }
            .main-content {
                padding: 25px;
            }
            .search-form {
                flex-direction: column;
            }
            .search-input {
                border-radius: 6px;
                margin-bottom: 10px;
            }
            .search-btn {
                border-radius: 6px;
                padding: 15px;
            }
        }
        @media (max-width: 480px) {
            .hero h1 {
                font-size: 1.8rem;
            }
            .section {
                padding: 50px 0;
            }
            .card-grid {
                grid-template-columns: 1fr;
            }
        }