* { margin: 0; padding: 0; box-sizing: border-box; }
        html { scroll-behavior: smooth; }
        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            line-height: 1.7;
            color: #333;
            background-color: #f9f7f1;
            background-image: linear-gradient(to bottom, #f9f7f1 0%, #e8e4d9 100%);
            min-height: 100vh;
            display: flex;
            flex-direction: column;
        }
        a { color: #2a5c8b; text-decoration: none; transition: color 0.3s ease; }
        a:hover { color: #d4a017; text-decoration: underline; }
        img { max-width: 100%; height: auto; display: block; }
        ul, ol { padding-left: 2em; margin-bottom: 1.5rem; }
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        .text-center { text-align: center; }
        .bold { font-weight: 700; }
        .highlight { background-color: #fffacd; padding: 2px 5px; border-radius: 3px; }
        .emoji { font-size: 1.2em; margin-right: 5px; }
        .site-header {
            background-color: #1a365d;
            color: white;
            padding: 1rem 0;
            border-bottom: 5px solid #d4a017;
            box-shadow: 0 4px 12px rgba(0,0,0,0.1);
            position: sticky;
            top: 0;
            z-index: 1000;
        }
        .header-container {
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
        }
        .my-logo {
            font-family: Georgia, 'Times New Roman', Times, serif;
            font-size: 2.5rem;
            font-weight: bold;
            color: #fff;
            text-transform: uppercase;
            letter-spacing: 3px;
            text-shadow: 2px 2px 0 #d4a017;
        }
        .my-logo a { color: inherit; text-decoration: none; }
        .my-logo a:hover { color: #d4a017; text-shadow: 2px 2px 0 #fff; }
        .breadcrumb {
            background-color: #e8e4d9;
            padding: 0.8rem 20px;
            font-size: 0.9rem;
            border-bottom: 1px solid #ccc;
        }
        .breadcrumb a { color: #555; }
        .breadcrumb a:hover { color: #1a365d; }
        .breadcrumb span { color: #777; }
        .main-nav ul {
            display: flex;
            list-style: none;
            gap: 2rem;
        }
        .main-nav a {
            color: white;
            font-weight: 600;
            padding: 0.5rem 0;
            position: relative;
        }
        .main-nav a:hover {
            color: #d4a017;
            text-decoration: none;
        }
        .main-nav a::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 0;
            height: 3px;
            background-color: #d4a017;
            transition: width 0.3s ease;
        }
        .main-nav a:hover::after { width: 100%; }
        .hamburger {
            display: none;
            background: none;
            border: none;
            color: white;
            font-size: 1.8rem;
            cursor: pointer;
            padding: 5px;
        }
        .search-form {
            display: flex;
            margin-top: 1rem;
            width: 100%;
            max-width: 500px;
            margin-left: auto;
            margin-right: auto;
        }
        .search-form input[type="search"] {
            flex-grow: 1;
            padding: 12px 20px;
            border: 2px solid #d4a017;
            border-radius: 30px 0 0 30px;
            font-size: 1rem;
            outline: none;
        }
        .search-form button {
            background-color: #2a5c8b;
            color: white;
            border: none;
            border-radius: 0 30px 30px 0;
            padding: 0 25px;
            cursor: pointer;
            font-weight: bold;
            transition: background-color 0.3s;
        }
        .search-form button:hover { background-color: #1a365d; }
        main {
            flex: 1;
            padding: 2rem 0;
        }
        article {
            background-color: white;
            border-radius: 15px;
            padding: 2.5rem;
            box-shadow: 0 10px 30px rgba(0,0,0,0.08);
            margin-bottom: 2rem;
        }
        h1 {
            font-size: 2.8rem;
            color: #1a365d;
            margin-bottom: 1.5rem;
            line-height: 1.2;
            border-bottom: 3px double #d4a017;
            padding-bottom: 1rem;
        }
        h2 {
            font-size: 2rem;
            color: #2a5c8b;
            margin-top: 2.5rem;
            margin-bottom: 1rem;
            padding-bottom: 0.5rem;
            border-bottom: 1px solid #e8e4d9;
        }
        h3 {
            font-size: 1.6rem;
            color: #444;
            margin-top: 2rem;
            margin-bottom: 0.8rem;
        }
        h4 {
            font-size: 1.3rem;
            color: #555;
            margin-top: 1.5rem;
            margin-bottom: 0.5rem;
            font-style: italic;
        }
        p {
            margin-bottom: 1.5rem;
            text-align: justify;
            hyphens: auto;
        }
        .intro {
            font-size: 1.2rem;
            color: #555;
            background-color: #f0f4f8;
            padding: 1.5rem;
            border-left: 5px solid #2a5c8b;
            margin-bottom: 2rem;
            border-radius: 0 10px 10px 0;
        }
        .featured-image {
            float: right;
            margin: 0 0 1.5rem 2rem;
            max-width: 500px;
            border: 8px solid #e8e4d9;
            border-radius: 10px;
            shape-outside: margin-box;
        }
        .clearfix::after {
            content: "";
            clear: both;
            display: table;
        }
        .module-nav {
            background: linear-gradient(135deg, #2a5c8b 0%, #1a365d 100%);
            color: white;
            padding: 1.5rem;
            border-radius: 10px;
            margin-bottom: 2rem;
        }
        .module-nav h3 { color: #fff; border: none; margin-top: 0; }
        .module-nav ul { list-style: none; padding-left: 0; }
        .module-nav li { margin-bottom: 0.8rem; }
        .module-nav a {
            color: #d4a017;
            display: block;
            padding: 0.5rem;
            border-radius: 5px;
            transition: all 0.3s;
        }
        .module-nav a:hover {
            background-color: rgba(255,255,255,0.1);
            color: #fff;
            padding-left: 1rem;
            text-decoration: none;
        }
        .user-interaction {
            background-color: #f0f4f8;
            padding: 2rem;
            border-radius: 10px;
            margin-top: 3rem;
            border-top: 5px solid #d4a017;
        }
        .interaction-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 2rem;
            margin-top: 1.5rem;
        }
        .form-group { margin-bottom: 1.2rem; }
        .form-group label {
            display: block;
            margin-bottom: 0.5rem;
            font-weight: 600;
            color: #444;
        }
        .form-group input,
        .form-group textarea,
        .form-group select {
            width: 100%;
            padding: 12px;
            border: 1px solid #ccc;
            border-radius: 5px;
            font-size: 1rem;
            transition: border 0.3s;
        }
        .form-group input:focus,
        .form-group textarea:focus,
        .form-group select:focus {
            border-color: #2a5c8b;
            outline: none;
            box-shadow: 0 0 0 2px rgba(42,92,139,0.2);
        }
        .star-rating {
            display: flex;
            gap: 5px;
            direction: rtl;
        }
        .star-rating input { display: none; }
        .star-rating label {
            font-size: 2rem;
            color: #ccc;
            cursor: pointer;
            transition: color 0.2s;
        }
        .star-rating input:checked ~ label,
        .star-rating label:hover,
        .star-rating label:hover ~ label { color: #ffc107; }
        .submit-btn {
            background-color: #2a5c8b;
            color: white;
            border: none;
            padding: 12px 30px;
            border-radius: 30px;
            font-size: 1rem;
            font-weight: bold;
            cursor: pointer;
            transition: background-color 0.3s, transform 0.2s;
        }
        .submit-btn:hover {
            background-color: #1a365d;
            transform: translateY(-2px);
        }
        .site-footer {
            background-color: #1a365d;
            color: #ccc;
            padding: 2.5rem 0 1.5rem;
            margin-top: auto;
        }
        .footer-container {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 2rem;
            margin-bottom: 2rem;
        }
        .footer-section h3 {
            color: #d4a017;
            margin-bottom: 1.2rem;
            font-size: 1.3rem;
            border-bottom: 1px solid #2a5c8b;
            padding-bottom: 0.5rem;
        }
        .footer-links { list-style: none; padding-left: 0; }
        .footer-links li { margin-bottom: 0.7rem; }
        .footer-links a { color: #aaa; }
        .footer-links a:hover { color: #fff; }
        friend-link {
            display: block;
            background-color: rgba(255,255,255,0.05);
            padding: 1rem;
            border-radius: 5px;
            margin-top: 1rem;
            border-left: 3px solid #d4a017;
        }
        friend-link a {
            color: #d4a017 !important;
            font-weight: bold;
        }
        .copyright {
            text-align: center;
            padding-top: 1.5rem;
            border-top: 1px solid #2a5c8b;
            font-size: 0.9rem;
            color: #888;
        }
        @media (max-width: 992px) {
            .featured-image {
                float: none;
                margin: 0 auto 2rem;
                max-width: 80%;
            }
            h1 { font-size: 2.3rem; }
            h2 { font-size: 1.8rem; }
        }
        @media (max-width: 768px) {
            .header-container { flex-direction: column; align-items: flex-start; }
            .my-logo { margin-bottom: 1rem; font-size: 2rem; }
            .hamburger {
                display: block;
                position: absolute;
                top: 1.2rem;
                right: 20px;
            }
            .main-nav {
                width: 100%;
                display: none;
                margin-top: 1rem;
            }
            .main-nav.active { display: block; }
            .main-nav ul {
                flex-direction: column;
                gap: 0;
            }
            .main-nav li { border-bottom: 1px solid #2a5c8b; }
            .main-nav a {
                display: block;
                padding: 1rem;
            }
            .search-form { margin-top: 1rem; width: 100%; }
            article { padding: 1.5rem; }
            .interaction-grid { grid-template-columns: 1fr; }
        }
        @media (max-width: 576px) {
            .container { padding: 0 15px; }
            h1 { font-size: 1.9rem; }
            .intro { font-size: 1.1rem; padding: 1rem; }
        }