:root {
            --primary-color: #1a5276;
            --secondary-color: #d35400;
            --accent-color: #27ae60;
            --light-bg: #f8f9fa;
            --dark-text: #2c3e50;
            --light-text: #ecf0f1;
            --shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
            --border-radius: 8px;
            --transition: all 0.3s ease;
            font-size: 16px;
        }
        * {
            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-text);
            background-color: #fff;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        header {
            background: linear-gradient(135deg, var(--primary-color), #0e3a5e);
            color: var(--light-text);
            padding: 1.5rem 0;
            border-bottom: 4px solid var(--secondary-color);
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: var(--shadow);
        }
        .header-container {
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            padding: 0 1rem;
        }
        .my-logo {
            font-size: 2.2rem;
            font-weight: 800;
            color: var(--light-text);
            text-decoration: none;
            text-transform: uppercase;
            letter-spacing: 1.5px;
            transition: var(--transition);
            background: linear-gradient(90deg, #f39c12, var(--secondary-color));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .my-logo:hover {
            transform: scale(1.05);
            text-shadow: 0 0 10px rgba(243, 156, 18, 0.5);
        }
        nav.navbar {
            display: flex;
            align-items: center;
            gap: 1.5rem;
        }
        .nav-links {
            display: flex;
            list-style: none;
            gap: 1.8rem;
        }
        .nav-links a {
            color: var(--light-text);
            text-decoration: none;
            font-weight: 600;
            padding: 0.5rem 0.8rem;
            border-radius: var(--border-radius);
            transition: var(--transition);
        }
        .nav-links a:hover,
        .nav-links a:focus {
            background-color: rgba(255, 255, 255, 0.2);
            transform: translateY(-3px);
        }
        .search-form {
            display: flex;
            align-items: center;
            background: rgba(255, 255, 255, 0.15);
            border-radius: 50px;
            padding: 0.3rem 1rem;
            border: 1px solid rgba(255, 255, 255, 0.3);
        }
        .search-form input {
            background: transparent;
            border: none;
            color: var(--light-text);
            padding: 0.5rem;
            width: 200px;
            outline: none;
        }
        .search-form input::placeholder {
            color: rgba(255, 255, 255, 0.7);
        }
        .search-form button {
            background: transparent;
            border: none;
            color: var(--light-text);
            cursor: pointer;
            padding: 0.3rem;
            transition: var(--transition);
        }
        .search-form button:hover {
            color: var(--secondary-color);
            transform: scale(1.2);
        }
        .hamburger {
            display: none;
            background: none;
            border: none;
            color: var(--light-text);
            font-size: 1.8rem;
            cursor: pointer;
        }
        .breadcrumb {
            padding: 1rem 1.5rem;
            background-color: rgba(255, 255, 255, 0.1);
            margin-top: 1rem;
            border-radius: 0 0 var(--border-radius) var(--border-radius);
        }
        .breadcrumb ol {
            display: flex;
            list-style: none;
            gap: 0.5rem;
        }
        .breadcrumb a {
            color: var(--light-text);
            text-decoration: none;
            opacity: 0.9;
        }
        .breadcrumb a:hover {
            opacity: 1;
            text-decoration: underline;
        }
        .breadcrumb li:not(:last-child)::after {
            content: "›";
            margin-left: 0.5rem;
            opacity: 0.7;
        }
        main {
            padding: 2.5rem 0;
        }
        article {
            background: var(--light-bg);
            padding: 2.5rem;
            border-radius: var(--border-radius);
            box-shadow: var(--shadow);
            margin-bottom: 2rem;
        }
        h1 {
            font-size: 2.8rem;
            color: var(--primary-color);
            margin-bottom: 1.2rem;
            line-height: 1.3;
            border-left: 6px solid var(--secondary-color);
            padding-left: 1rem;
        }
        h2 {
            font-size: 2.2rem;
            color: var(--primary-color);
            margin: 2.5rem 0 1.2rem;
            padding-bottom: 0.5rem;
            border-bottom: 3px solid var(--accent-color);
        }
        h3 {
            font-size: 1.8rem;
            color: var(--secondary-color);
            margin: 2rem 0 1rem;
        }
        h4 {
            font-size: 1.4rem;
            color: #555;
            margin: 1.5rem 0 0.8rem;
            font-style: italic;
        }
        .last-updated {
            font-size: 0.95rem;
            color: #7f8c8d;
            margin-bottom: 2rem;
            text-align: right;
            font-style: italic;
        }
        time {
            font-weight: bold;
            color: var(--primary-color);
        }
        figure {
            margin: 2.5rem 0;
            text-align: center;
        }
        img {
            max-width: 100%;
            height: auto;
            border-radius: var(--border-radius);
            box-shadow: 0 6px 20px rgba(0, 0, 0, 0.15);
            border: 3px solid var(--primary-color);
            transition: var(--transition);
        }
        img:hover {
            transform: scale(1.01);
            box-shadow: 0 10px 25px rgba(0, 0, 0, 0.2);
        }
        figcaption {
            margin-top: 0.8rem;
            font-size: 0.95rem;
            color: #666;
            font-style: italic;
        }
        p {
            margin-bottom: 1.5rem;
            text-align: justify;
            font-size: 1.1rem;
        }
        p strong {
            color: var(--secondary-color);
            background-color: rgba(211, 84, 0, 0.1);
            padding: 0 0.2rem;
            border-radius: 3px;
        }
        em {
            color: var(--accent-color);
            font-style: italic;
        }
        section {
            margin-bottom: 2.5rem;
        }
        a {
            color: var(--primary-color);
            text-decoration: none;
            border-bottom: 1px dotted var(--primary-color);
            transition: var(--transition);
        }
        a:hover {
            color: var(--secondary-color);
            border-bottom: 1px solid var(--secondary-color);
            background-color: rgba(26, 82, 118, 0.05);
        }
        .user-interaction {
            background: white;
            padding: 2rem;
            border-radius: var(--border-radius);
            box-shadow: var(--shadow);
            border-left: 5px solid var(--accent-color);
        }
        .rating-form,
        .comment-form {
            margin: 1.5rem 0;
            padding: 1.5rem;
            background: var(--light-bg);
            border-radius: var(--border-radius);
        }
        label {
            display: block;
            margin-bottom: 0.5rem;
            font-weight: 600;
            color: var(--primary-color);
        }
        select,
        textarea {
            width: 100%;
            padding: 0.8rem;
            margin-bottom: 1rem;
            border: 1px solid #bdc3c7;
            border-radius: var(--border-radius);
            font-size: 1rem;
            transition: var(--transition);
        }
        select:focus,
        textarea:focus {
            outline: none;
            border-color: var(--primary-color);
            box-shadow: 0 0 0 3px rgba(26, 82, 118, 0.2);
        }
        button[type="submit"] {
            background: linear-gradient(to right, var(--primary-color), var(--accent-color));
            color: white;
            border: none;
            padding: 0.8rem 1.8rem;
            border-radius: 50px;
            font-weight: 600;
            cursor: pointer;
            transition: var(--transition);
            display: inline-block;
        }
        button[type="submit"]:hover {
            transform: translateY(-3px);
            box-shadow: 0 6px 12px rgba(26, 82, 118, 0.3);
        }
        footer {
            background: var(--primary-color);
            color: var(--light-text);
            padding: 2rem;
            border-radius: var(--border-radius) var(--border-radius) 0 0;
            margin-top: 3rem;
            text-align: center;
        }
        friend-link {
            display: block;
            margin-bottom: 1.5rem;
            font-size: 1.1rem;
        }
        friend-link a {
            color: var(--light-text);
            border-bottom: 1px solid rgba(255, 255, 255, 0.5);
            margin: 0 1rem;
        }
        friend-link a:hover {
            color: #f39c12;
            border-bottom-color: #f39c12;
        }
        .copyright {
            font-size: 0.9rem;
            opacity: 0.8;
            margin-top: 1.5rem;
            padding-top: 1.5rem;
            border-top: 1px solid rgba(255, 255, 255, 0.2);
        }
        @media (max-width: 768px) {
            body {
                padding: 0 15px;
            }
            .header-container {
                flex-direction: column;
                align-items: flex-start;
            }
            nav.navbar {
                width: 100%;
                justify-content: space-between;
                margin-top: 1rem;
            }
            .nav-links {
                display: none;
                flex-direction: column;
                width: 100%;
                background: rgba(0, 0, 0, 0.9);
                position: absolute;
                top: 100%;
                left: 0;
                padding: 1rem;
                border-radius: 0 0 var(--border-radius) var(--border-radius);
                z-index: 999;
            }
            .nav-links.active {
                display: flex;
            }
            .hamburger {
                display: block;
            }
            .search-form input {
                width: 150px;
            }
            h1 {
                font-size: 2.2rem;
            }
            h2 {
                font-size: 1.8rem;
            }
            h3 {
                font-size: 1.5rem;
            }
            article {
                padding: 1.5rem;
            }
            .user-interaction {
                padding: 1.5rem;
            }
        }
        @media (max-width: 480px) {
            .my-logo {
                font-size: 1.8rem;
            }
            h1 {
                font-size: 1.9rem;
            }
            .search-form input {
                width: 120px;
            }
            friend-link {
                display: flex;
                flex-direction: column;
                gap: 0.5rem;
            }
            friend-link a {
                margin: 0.3rem 0;
            }
        }
        .emoji {
            font-size: 1.2em;
            margin-right: 0.3rem;
        }
        .highlight-box {
            background: linear-gradient(135deg, #e3f2fd, #f3e5f5);
            padding: 1.5rem;
            border-radius: var(--border-radius);
            border-left: 5px solid var(--accent-color);
            margin: 2rem 0;
            box-shadow: 0 3px 10px rgba(0, 0, 0, 0.05);
        }
        .quote {
            font-style: italic;
            border-left: 4px solid var(--secondary-color);
            padding-left: 1.5rem;
            margin: 2rem 0;
            color: #555;
            background: rgba(255, 255, 255, 0.7);
            padding: 1.5rem;
            border-radius: 0 var(--border-radius) var(--border-radius) 0;
        }
        .grid-container {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 1.5rem;
            margin: 2rem 0;
        }
        .card {
            background: white;
            padding: 1.5rem;
            border-radius: var(--border-radius);
            box-shadow: var(--shadow);
            transition: var(--transition);
            border-top: 4px solid var(--primary-color);
        }
        .card:hover {
            transform: translateY(-5px);
            box-shadow: 0 8px 20px rgba(0, 0, 0, 0.15);
        }