:root {
            --primary: #6a11cb;
            --secondary: #2575fc;
            --accent: #ff5e62;
            --light: #f8f9fa;
            --dark: #212529;
            --gray: #6c757d;
            --success: #28a745;
            --shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
            --transition: all 0.3s ease;
            --border-radius: 12px;
        }
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
        }
        body {
            background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
            color: var(--dark);
            line-height: 1.8;
            font-size: 1.1rem;
            min-height: 100vh;
            display: flex;
            flex-direction: column;
        }
        a {
            color: var(--primary);
            text-decoration: none;
            transition: var(--transition);
        }
        a:hover {
            color: var(--accent);
            text-decoration: underline;
        }
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        header {
            background: linear-gradient(to right, var(--primary), var(--secondary));
            color: white;
            box-shadow: var(--shadow);
            position: sticky;
            top: 0;
            z-index: 1000;
        }
        .header-top {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 15px 0;
        }
        .my-logo {
            font-size: 2.2rem;
            font-weight: 800;
            letter-spacing: 1px;
            background: linear-gradient(to right, #ffecd2, #fcb69f);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            text-shadow: 0 2px 4px rgba(0,0,0,0.2);
        }
        .my-logo a {
            background: none;
            -webkit-text-fill-color: unset;
        }
        .search-form {
            display: flex;
            flex-grow: 0.5;
            max-width: 400px;
        }
        .search-form input {
            flex-grow: 1;
            padding: 12px 18px;
            border: none;
            border-radius: var(--border-radius) 0 0 var(--border-radius);
            font-size: 1rem;
        }
        .search-form button {
            background: var(--accent);
            color: white;
            border: none;
            border-radius: 0 var(--border-radius) var(--border-radius) 0;
            padding: 0 20px;
            cursor: pointer;
            transition: var(--transition);
        }
        .search-form button:hover {
            background: #ff3b4a;
        }
        nav {
            background-color: rgba(0, 0, 0, 0.1);
        }
        .nav-desktop {
            display: flex;
            justify-content: center;
            list-style: none;
            padding: 0;
        }
        .nav-desktop li {
            position: relative;
        }
        .nav-desktop a {
            color: white;
            padding: 18px 22px;
            display: block;
            font-weight: 600;
            text-decoration: none;
        }
        .nav-desktop a:hover {
            background-color: rgba(255, 255, 255, 0.15);
            text-decoration: none;
        }
        .hamburger {
            display: none;
            background: none;
            border: none;
            color: white;
            font-size: 1.8rem;
            cursor: pointer;
            padding: 5px;
        }
        .nav-mobile {
            display: none;
            flex-direction: column;
            list-style: none;
            background-color: var(--primary);
            padding: 0;
        }
        .nav-mobile.active {
            display: flex;
        }
        .nav-mobile a {
            color: white;
            padding: 15px 20px;
            border-bottom: 1px solid rgba(255,255,255,0.1);
            display: block;
        }
        .breadcrumb {
            padding: 15px 0;
            font-size: 0.95rem;
            color: var(--gray);
        }
        .breadcrumb a {
            color: var(--gray);
        }
        .breadcrumb a:hover {
            color: var(--primary);
        }
        main {
            flex-grow: 1;
            padding: 30px 0;
        }
        article {
            background-color: white;
            border-radius: var(--border-radius);
            box-shadow: var(--shadow);
            padding: 40px;
            margin-bottom: 30px;
        }
        h1 {
            font-size: 2.8rem;
            color: var(--primary);
            margin-bottom: 25px;
            line-height: 1.2;
            border-bottom: 3px solid var(--accent);
            padding-bottom: 15px;
        }
        h2 {
            font-size: 2rem;
            color: var(--secondary);
            margin: 40px 0 20px;
            padding-top: 10px;
        }
        h3 {
            font-size: 1.6rem;
            color: var(--dark);
            margin: 30px 0 15px;
        }
        h4 {
            font-size: 1.3rem;
            color: var(--gray);
            margin: 25px 0 12px;
        }
        p {
            margin-bottom: 1.5em;
            text-align: justify;
        }
        .lead {
            font-size: 1.3rem;
            font-weight: 500;
            color: var(--secondary);
            background-color: #f0f8ff;
            padding: 20px;
            border-left: 5px solid var(--secondary);
            border-radius: 0 var(--border-radius) var(--border-radius) 0;
            margin-bottom: 30px;
        }
        .highlight {
            background-color: #fff9db;
            padding: 20px;
            border-radius: var(--border-radius);
            border: 1px dashed var(--accent);
            margin: 25px 0;
        }
        .highlight strong {
            color: var(--accent);
        }
        img {
            max-width: 100%;
            height: auto;
            border-radius: var(--border-radius);
            box-shadow: var(--shadow);
            margin: 25px auto;
            display: block;
        }
        .float-right {
            float: right;
            margin-left: 25px;
            max-width: 400px;
        }
        .clearfix::after {
            content: "";
            clear: both;
            display: table;
        }
        ul, ol {
            margin-left: 25px;
            margin-bottom: 1.5em;
        }
        blockquote {
            font-style: italic;
            color: var(--gray);
            border-left: 4px solid var(--primary);
            padding-left: 20px;
            margin: 25px 0;
        }
        .related-links {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
            gap: 15px;
            margin: 30px 0;
            padding: 20px;
            background: linear-gradient(to right, #fdfcfb, #f5f7fa);
            border-radius: var(--border-radius);
        }
        .related-links a {
            display: flex;
            align-items: center;
            padding: 10px 15px;
            background: white;
            border-radius: 8px;
            box-shadow: 0 3px 6px rgba(0,0,0,0.05);
        }
        .related-links a:hover {
            transform: translateY(-3px);
            box-shadow: 0 5px 12px rgba(0,0,0,0.1);
            text-decoration: none;
        }
        .related-links i {
            margin-right: 10px;
            color: var(--primary);
        }
        .interaction-section {
            background-color: #f8f9fa;
            padding: 30px;
            border-radius: var(--border-radius);
            margin-top: 40px;
            border: 1px solid #e9ecef;
        }
        .rating-form, .comment-form {
            margin-bottom: 30px;
        }
        .stars {
            display: flex;
            flex-direction: row-reverse;
            justify-content: flex-end;
            margin: 10px 0 20px;
        }
        .stars input {
            display: none;
        }
        .stars label {
            font-size: 2rem;
            color: #ddd;
            cursor: pointer;
            padding: 5px;
            transition: var(--transition);
        }
        .stars input:checked ~ label,
        .stars label:hover,
        .stars label:hover ~ label {
            color: #ffc107;
        }
        form label {
            display: block;
            margin-bottom: 8px;
            font-weight: 600;
        }
        form input[type="text"],
        form input[type="email"],
        form textarea {
            width: 100%;
            padding: 12px 15px;
            margin-bottom: 20px;
            border: 1px solid #ced4da;
            border-radius: 8px;
            font-size: 1rem;
            transition: var(--transition);
        }
        form input[type="text"]:focus,
        form input[type="email"]:focus,
        form textarea:focus {
            outline: none;
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(106, 17, 203, 0.2);
        }
        form textarea {
            min-height: 150px;
            resize: vertical;
        }
        form button {
            background: linear-gradient(to right, var(--primary), var(--secondary));
            color: white;
            border: none;
            border-radius: var(--border-radius);
            padding: 14px 28px;
            font-size: 1.1rem;
            font-weight: 600;
            cursor: pointer;
            transition: var(--transition);
        }
        form button:hover {
            transform: translateY(-3px);
            box-shadow: 0 7px 14px rgba(106, 17, 203, 0.25);
        }
        .last-updated {
            text-align: right;
            font-size: 0.9rem;
            color: var(--gray);
            margin-top: 30px;
            padding-top: 15px;
            border-top: 1px solid #eee;
        }
        footer {
            background: linear-gradient(to right, var(--dark), #343a40);
            color: white;
            padding: 40px 0 20px;
        }
        .footer-content {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 30px;
            margin-bottom: 30px;
        }
        .footer-section h4 {
            color: #ffc107;
            margin-bottom: 20px;
            font-size: 1.3rem;
        }
        .footer-links {
            list-style: none;
        }
        .footer-links li {
            margin-bottom: 10px;
        }
        .footer-links a {
            color: #adb5bd;
        }
        .footer-links a:hover {
            color: white;
            padding-left: 5px;
        }
        .friend-links {
            background-color: rgba(255,255,255,0.05);
            padding: 20px;
            border-radius: var(--border-radius);
            margin: 20px 0;
        }
        .friend-links h5 {
            color: #ffc107;
            margin-bottom: 15px;
        }
        .friend-links a {
            display: inline-block;
            margin-right: 15px;
            margin-bottom: 10px;
            padding: 8px 15px;
            background-color: rgba(255,255,255,0.1);
            border-radius: 6px;
            color: white;
        }
        .copyright {
            text-align: center;
            padding-top: 20px;
            border-top: 1px solid rgba(255,255,255,0.1);
            font-size: 0.9rem;
            color: #adb5bd;
        }
        @media (max-width: 992px) {
            h1 { font-size: 2.4rem; }
            h2 { font-size: 1.8rem; }
            article { padding: 30px; }
        }
        @media (max-width: 768px) {
            .header-top {
                flex-wrap: wrap;
            }
            .search-form {
                order: 3;
                margin-top: 15px;
                max-width: 100%;
                flex-grow: 1;
            }
            .hamburger {
                display: block;
            }
            .nav-desktop {
                display: none;
            }
            .nav-mobile {
                display: none;
            }
            .float-right {
                float: none;
                margin: 20px 0;
                max-width: 100%;
            }
            h1 { font-size: 2rem; }
            h2 { font-size: 1.6rem; }
            article { padding: 20px; }
            .related-links {
                grid-template-columns: 1fr;
            }
        }