:root {
            --primary: #1a237e;
            --secondary: #d32f2f;
            --accent: #ffab00;
            --light: #f5f5f5;
            --dark: #212121;
            --gray: #757575;
            --transition: all 0.3s ease;
            --shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
            --border-radius: 8px;
        }
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            line-height: 1.7;
            color: var(--dark);
            background-color: #fff;
            overflow-x: hidden;
        }
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        header {
            background: linear-gradient(135deg, var(--primary) 0%, #283593 100%);
            color: white;
            padding: 1rem 0;
            box-shadow: var(--shadow);
            position: sticky;
            top: 0;
            z-index: 1000;
        }
        .header-top {
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
        }
        .logo a {
            font-size: 1.8rem;
            font-weight: 800;
            color: white;
            text-decoration: none;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .logo i {
            color: var(--accent);
        }
        .search-box {
            display: flex;
            background: white;
            border-radius: 50px;
            overflow: hidden;
            flex: 0 1 400px;
        }
        .search-box input {
            flex: 1;
            border: none;
            padding: 12px 20px;
            outline: none;
            font-size: 1rem;
        }
        .search-box button {
            background: var(--secondary);
            color: white;
            border: none;
            padding: 0 25px;
            cursor: pointer;
            transition: var(--transition);
        }
        .search-box button:hover {
            background: #b71c1c;
        }
        nav {
            background-color: rgba(0, 0, 0, 0.1);
            margin-top: 1rem;
            border-radius: var(--border-radius);
        }
        .nav-desktop {
            display: flex;
            justify-content: center;
            flex-wrap: wrap;
            list-style: none;
        }
        .nav-desktop li {
            position: relative;
        }
        .nav-desktop a {
            color: white;
            text-decoration: none;
            padding: 15px 20px;
            display: block;
            font-weight: 600;
            transition: var(--transition);
            border-bottom: 3px solid transparent;
        }
        .nav-desktop a:hover,
        .nav-desktop a.active {
            background: rgba(255, 255, 255, 0.1);
            border-bottom-color: var(--accent);
        }
        .hamburger {
            display: none;
            background: none;
            border: none;
            color: white;
            font-size: 1.8rem;
            cursor: pointer;
        }
        .nav-mobile {
            display: none;
            flex-direction: column;
            background: var(--primary);
            list-style: none;
            border-radius: var(--border-radius);
            overflow: hidden;
            margin-top: 1rem;
            max-height: 0;
            transition: max-height 0.5s ease;
        }
        .nav-mobile.active {
            display: flex;
            max-height: 500px;
        }
        .nav-mobile a {
            color: white;
            text-decoration: none;
            padding: 15px 20px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.1);
            transition: var(--transition);
        }
        .nav-mobile a:hover {
            background: rgba(255, 255, 255, 0.1);
            padding-left: 30px;
        }
        .breadcrumb {
            padding: 1rem 0;
            background: var(--light);
            font-size: 0.9rem;
        }
        .breadcrumb ol {
            display: flex;
            flex-wrap: wrap;
            list-style: none;
        }
        .breadcrumb li:not(:last-child)::after {
            content: ">";
            margin: 0 10px;
            color: var(--gray);
        }
        .breadcrumb a {
            color: var(--primary);
            text-decoration: none;
        }
        .breadcrumb a:hover {
            text-decoration: underline;
        }
        main {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 40px;
            padding: 30px 0;
        }
        @media (max-width: 992px) {
            main {
                grid-template-columns: 1fr;
            }
        }
        article {
            background: white;
            border-radius: var(--border-radius);
            padding: 30px;
            box-shadow: var(--shadow);
        }
        h1 {
            color: var(--primary);
            margin-bottom: 1.5rem;
            font-size: 2.5rem;
            border-bottom: 3px solid var(--accent);
            padding-bottom: 10px;
        }
        h2 {
            color: var(--secondary);
            margin: 2rem 0 1rem;
            padding-bottom: 8px;
            border-bottom: 2px dashed #eee;
        }
        h3 {
            color: var(--primary);
            margin: 1.5rem 0 0.8rem;
        }
        p {
            margin-bottom: 1.2rem;
            text-align: justify;
        }
        .highlight {
            background: #fff8e1;
            border-left: 4px solid var(--accent);
            padding: 20px;
            margin: 25px 0;
            border-radius: 0 var(--border-radius) var(--border-radius) 0;
        }
        .feature-img {
            width: 100%;
            height: auto;
            border-radius: var(--border-radius);
            margin: 25px 0;
            box-shadow: var(--shadow);
            transition: transform 0.5s ease;
        }
        .feature-img:hover {
            transform: scale(1.01);
        }
        .related-links {
            background: #f9f9f9;
            padding: 20px;
            border-radius: var(--border-radius);
            margin: 30px 0;
        }
        .related-links ul {
            list-style: none;
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
            gap: 15px;
        }
        .related-links a {
            color: var(--primary);
            text-decoration: none;
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 10px;
            border-radius: 5px;
            transition: var(--transition);
        }
        .related-links a:hover {
            background: white;
            box-shadow: var(--shadow);
        }
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 20px;
            margin: 30px 0;
        }
        .stat-card {
            background: linear-gradient(145deg, #e3f2fd, #bbdefb);
            padding: 25px;
            border-radius: var(--border-radius);
            text-align: center;
            box-shadow: var(--shadow);
            transition: var(--transition);
        }
        .stat-card:hover {
            transform: translateY(-5px);
        }
        .stat-card i {
            font-size: 2.5rem;
            color: var(--primary);
            margin-bottom: 15px;
        }
        .stat-card h4 {
            color: var(--secondary);
            margin-bottom: 10px;
        }
        aside {
            display: flex;
            flex-direction: column;
            gap: 30px;
        }
        .sidebar-widget {
            background: white;
            padding: 25px;
            border-radius: var(--border-radius);
            box-shadow: var(--shadow);
        }
        .sidebar-widget h3 {
            color: var(--secondary);
            margin-bottom: 20px;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .rating-form,
        .comment-form {
            display: flex;
            flex-direction: column;
            gap: 15px;
        }
        .rating-stars {
            display: flex;
            justify-content: center;
            gap: 5px;
            font-size: 1.8rem;
            color: #ddd;
            margin: 10px 0;
        }
        .rating-stars .active {
            color: var(--accent);
        }
        .form-group {
            display: flex;
            flex-direction: column;
            gap: 8px;
        }
        input, textarea, select {
            padding: 12px 15px;
            border: 1px solid #ddd;
            border-radius: var(--border-radius);
            font-family: inherit;
            font-size: 1rem;
            transition: var(--transition);
        }
        input:focus, textarea:focus, select:focus {
            outline: none;
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(26, 35, 126, 0.1);
        }
        button[type="submit"] {
            background: var(--secondary);
            color: white;
            border: none;
            padding: 14px;
            border-radius: var(--border-radius);
            font-weight: 600;
            cursor: pointer;
            transition: var(--transition);
        }
        button[type="submit"]:hover {
            background: #b71c1c;
            transform: translateY(-2px);
        }
        .schedule-list {
            list-style: none;
        }
        .schedule-list li {
            padding: 15px;
            border-bottom: 1px solid #eee;
            display: flex;
            justify-content: space-between;
            align-items: center;
            transition: var(--transition);
        }
        .schedule-list li:hover {
            background: #f9f9f9;
        }
        footer {
            background: var(--dark);
            color: white;
            padding: 50px 0 20px;
            margin-top: 50px;
        }
        .footer-content {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 40px;
            margin-bottom: 40px;
        }
        .footer-logo {
            font-size: 1.8rem;
            font-weight: 800;
            margin-bottom: 20px;
            color: var(--accent);
        }
        .footer-links h4 {
            color: white;
            margin-bottom: 20px;
            padding-bottom: 10px;
            border-bottom: 2px solid var(--secondary);
        }
        .footer-links ul {
            list-style: none;
        }
        .footer-links li {
            margin-bottom: 10px;
        }
        .footer-links a {
            color: #ccc;
            text-decoration: none;
            transition: var(--transition);
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .footer-links a:hover {
            color: var(--accent);
            padding-left: 5px;
        }
        friend-link {
            display: block;
            margin-top: 30px;
            padding-top: 30px;
            border-top: 1px solid #444;
        }
        friend-link h4 {
            color: var(--accent);
            margin-bottom: 20px;
        }
        friend-link ul {
            display: flex;
            flex-wrap: wrap;
            gap: 15px;
            list-style: none;
        }
        friend-link a {
            background: rgba(255, 255, 255, 0.05);
            color: white;
            padding: 8px 15px;
            border-radius: 20px;
            text-decoration: none;
            transition: var(--transition);
            border: 1px solid transparent;
        }
        friend-link a:hover {
            background: var(--primary);
            border-color: var(--accent);
        }
        .copyright {
            text-align: center;
            padding-top: 20px;
            border-top: 1px solid #444;
            color: #aaa;
            font-size: 0.9rem;
        }
        @media (max-width: 768px) {
            .header-top {
                flex-direction: column;
                gap: 20px;
                align-items: stretch;
            }
            .search-box {
                flex: 1;
                min-width: auto;
            }
            .nav-desktop {
                display: none;
            }
            .hamburger {
                display: block;
                position: absolute;
                top: 20px;
                right: 20px;
            }
            h1 {
                font-size: 2rem;
            }
            article, .sidebar-widget {
                padding: 20px;
            }
        }