* { 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: linear-gradient(135deg, #f5f7fa 0%, #e4edf5 100%);
            min-height: 100vh;
        }
        a { color: #2a7de1; text-decoration: none; transition: color 0.3s ease; }
        a:hover { color: #ff6b6b; text-decoration: underline; }
        img { max-width: 100%; height: auto; display: block; }
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        .site-header {
            background: #1a2b4c;
            color: #fff;
            padding: 1rem 0;
            box-shadow: 0 4px 12px rgba(0,0,0,0.1);
            position: sticky;
            top: 0;
            z-index: 1000;
        }
        .header-content {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .my-logo {
            font-family: 'Comic Sans MS', cursive, sans-serif;
            font-size: 2.2rem;
            font-weight: 900;
            color: #ffde59;
            text-shadow: 2px 2px 0 #ff6b6b, 4px 4px 0 rgba(0,0,0,0.2);
            letter-spacing: 1px;
        }
        .my-logo a { color: inherit; text-decoration: none; }
        .my-logo:hover { transform: scale(1.03); }
        .hamburger {
            display: none;
            flex-direction: column;
            cursor: pointer;
            background: transparent;
            border: none;
        }
        .hamburger span {
            width: 25px;
            height: 3px;
            background: #ffde59;
            margin: 3px 0;
            border-radius: 2px;
            transition: 0.3s;
        }
        .main-nav ul {
            display: flex;
            list-style: none;
            gap: 2rem;
        }
        .main-nav a {
            color: #fff;
            font-weight: 600;
            padding: 0.5rem 1rem;
            border-radius: 4px;
        }
        .main-nav a:hover,
        .main-nav a.active {
            background: #ff6b6b;
            color: #fff;
            text-decoration: none;
        }
        .breadcrumb {
            background: #e9f1fa;
            padding: 0.8rem 0;
            font-size: 0.9rem;
            border-bottom: 1px solid #d0ddec;
        }
        .breadcrumb a { color: #555; }
        .search-container {
            background: #2a7de1;
            padding: 1.5rem 0;
            text-align: center;
        }
        .search-form {
            max-width: 600px;
            margin: 0 auto;
            display: flex;
            border-radius: 50px;
            overflow: hidden;
            box-shadow: 0 5px 15px rgba(42, 125, 225, 0.3);
        }
        .search-form input {
            flex: 1;
            padding: 1rem 1.5rem;
            border: none;
            font-size: 1rem;
            outline: none;
        }
        .search-form button {
            background: #ff6b6b;
            color: white;
            border: none;
            padding: 0 2rem;
            cursor: pointer;
            font-weight: bold;
            transition: background 0.3s;
        }
        .search-form button:hover { background: #ff5252; }
        .main-content {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 2.5rem;
            padding: 2.5rem 0;
        }
        @media (max-width: 992px) {
            .main-content { grid-template-columns: 1fr; }
        }
        .article-content {
            background: white;
            padding: 2.5rem;
            border-radius: 15px;
            box-shadow: 0 10px 30px rgba(0,0,0,0.08);
        }
        .sidebar {
            background: white;
            padding: 1.5rem;
            border-radius: 15px;
            box-shadow: 0 5px 20px rgba(0,0,0,0.06);
            align-self: start;
            position: sticky;
            top: 120px;
        }
        h1 {
            font-size: 2.8rem;
            color: #1a2b4c;
            margin-bottom: 1.5rem;
            line-height: 1.2;
            border-bottom: 4px solid #ffde59;
            padding-bottom: 0.5rem;
        }
        h2 {
            font-size: 2rem;
            color: #2a7de1;
            margin: 2.5rem 0 1rem;
            padding-top: 1rem;
        }
        h3 {
            font-size: 1.6rem;
            color: #333;
            margin: 2rem 0 1rem;
        }
        h4 {
            font-size: 1.3rem;
            color: #555;
            margin: 1.5rem 0 0.8rem;
        }
        p {
            margin-bottom: 1.5rem;
            text-align: justify;
        }
        .lead {
            font-size: 1.3rem;
            font-weight: 500;
            color: #444;
            background: #f0f8ff;
            padding: 1.5rem;
            border-left: 5px solid #2a7de1;
            border-radius: 5px;
            margin-bottom: 2rem;
        }
        .highlight {
            background: linear-gradient(120deg, #ffde59 0%, #ffde59 100%);
            background-repeat: no-repeat;
            background-size: 100% 40%;
            background-position: 0 90%;
            font-weight: 700;
            padding: 0 3px;
        }
        .emoji { font-size: 1.2em; margin-right: 5px; }
        .image-container {
            margin: 2rem auto;
            text-align: center;
            max-width: 800px;
        }
        .image-container img {
            border-radius: 10px;
            box-shadow: 0 8px 20px rgba(0,0,0,0.15);
            border: 5px solid white;
        }
        .caption {
            font-style: italic;
            color: #666;
            margin-top: 0.8rem;
            font-size: 0.95rem;
        }
        blockquote {
            border-left: 5px solid #ff6b6b;
            background: #fff5f5;
            padding: 1.5rem;
            margin: 2rem 0;
            border-radius: 0 10px 10px 0;
            font-style: italic;
        }
        .user-interactive {
            background: #f8f9fa;
            border: 2px dashed #ced4da;
            border-radius: 10px;
            padding: 2rem;
            margin: 3rem 0;
        }
        .interactive-title {
            color: #1a2b4c;
            margin-top: 0;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .rating-form, .comment-form {
            display: flex;
            flex-direction: column;
            gap: 1rem;
            margin-top: 1rem;
        }
        .stars {
            display: flex;
            gap: 5px;
            font-size: 1.8rem;
            color: #ddd;
            cursor: pointer;
        }
        .stars .star:hover,
        .stars .star.active { color: #ffde59; }
        .form-group { display: flex; flex-direction: column; }
        .form-group label { font-weight: 600; margin-bottom: 0.5rem; }
        .form-group input, .form-group textarea, .form-group select {
            padding: 0.8rem;
            border: 1px solid #ccc;
            border-radius: 5px;
            font-family: inherit;
            font-size: 1rem;
        }
        .submit-btn {
            background: #2a7de1;
            color: white;
            border: none;
            padding: 1rem 2rem;
            border-radius: 5px;
            cursor: pointer;
            font-weight: bold;
            transition: background 0.3s;
            align-self: flex-start;
        }
        .submit-btn:hover { background: #1a6bc9; }
        .site-footer {
            background: #1a2b4c;
            color: #fff;
            padding: 3rem 0 1.5rem;
            margin-top: 3rem;
        }
        .footer-content {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 2rem;
            margin-bottom: 2rem;
        }
        .footer-section h4 {
            color: #ffde59;
            margin-bottom: 1.5rem;
            font-size: 1.3rem;
        }
        .footer-links { list-style: none; }
        .footer-links li { margin-bottom: 0.7rem; }
        .footer-links a { color: #ccc; }
        .footer-links a:hover { color: #ffde59; }
        friend-link {
            display: inline-block;
            background: #2a7de1;
            color: white;
            padding: 0.5rem 1rem;
            border-radius: 20px;
            margin: 0.3rem;
            font-size: 0.9rem;
        }
        friend-link a { color: white; }
        friend-link:hover { background: #ff6b6b; }
        .copyright {
            text-align: center;
            padding-top: 1.5rem;
            border-top: 1px solid #2c3e5a;
            color: #aaa;
            font-size: 0.9rem;
        }
        @media (max-width: 768px) {
            .header-content { flex-wrap: wrap; }
            .hamburger { display: flex; }
            .main-nav ul {
                display: none;
                flex-direction: column;
                width: 100%;
                background: #1a2b4c;
                position: absolute;
                top: 100%;
                left: 0;
                padding: 1rem;
                box-shadow: 0 10px 15px rgba(0,0,0,0.1);
            }
            .main-nav.active ul { display: flex; }
            h1 { font-size: 2.2rem; }
            h2 { font-size: 1.8rem; }
            .article-content { padding: 1.5rem; }
            .sidebar { position: static; }
        }