* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
        }
        body {
            background-color: #f8f9fa;
            color: #333;
            line-height: 1.6;
            overflow-x: hidden;
        }
        a {
            text-decoration: none;
            color: #2c3e50;
            transition: color 0.3s ease;
        }
        a:hover {
            color: #3498db;
        }
        ul {
            list-style: none;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        .container {
            width: 90%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 15px;
        }
        header {
            background: linear-gradient(135deg, #1a2980, #26d0ce);
            color: white;
            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-size: 2.5rem;
            font-weight: 800;
            color: white;
            text-transform: uppercase;
            letter-spacing: 2px;
            text-shadow: 2px 2px 4px rgba(0,0,0,0.3);
        }
        .my-logo:hover {
            color: #f1c40f;
        }
        nav ul {
            display: flex;
            gap: 2rem;
        }
        nav ul li a {
            color: white;
            font-weight: 600;
            padding: 0.5rem 1rem;
            border-radius: 5px;
        }
        nav ul li a:hover {
            background-color: rgba(255,255,255,0.2);
        }
        .hamburger {
            display: none;
            font-size: 1.8rem;
            cursor: pointer;
            color: white;
        }
        .breadcrumb {
            padding: 1rem 0;
            background-color: #ecf0f1;
            font-size: 0.9rem;
        }
        .breadcrumb ol {
            display: flex;
            flex-wrap: wrap;
        }
        .breadcrumb li:not(:last-child)::after {
            content: "›";
            margin: 0 10px;
            color: #7f8c8d;
        }
        main {
            padding: 2rem 0;
            background-color: white;
            border-radius: 10px;
            box-shadow: 0 5px 15px rgba(0,0,0,0.05);
            margin: 2rem auto;
        }
        article {
            padding: 2rem;
        }
        h1 {
            font-size: 3rem;
            color: #2c3e50;
            margin-bottom: 1.5rem;
            text-align: center;
            border-bottom: 3px solid #3498db;
            padding-bottom: 1rem;
        }
        h2 {
            font-size: 2.2rem;
            color: #1a2980;
            margin: 2rem 0 1rem;
            padding-left: 10px;
            border-left: 5px solid #26d0ce;
        }
        h3 {
            font-size: 1.8rem;
            color: #2980b9;
            margin: 1.5rem 0 0.8rem;
        }
        h4 {
            font-size: 1.4rem;
            color: #16a085;
            margin: 1.2rem 0 0.5rem;
        }
        p {
            margin-bottom: 1.2rem;
            font-size: 1.1rem;
            text-align: justify;
            line-height: 1.8;
        }
        .emphasis {
            font-weight: bold;
            color: #e74c3c;
        }
        .highlight {
            background-color: #fffacd;
            padding: 0.2rem 0.5rem;
            border-radius: 3px;
        }
        .section-img {
            float: right;
            margin: 0 0 1.5rem 2rem;
            border-radius: 10px;
            box-shadow: 0 8px 16px rgba(0,0,0,0.1);
            max-width: 400px;
        }
        .clearfix::after {
            content: "";
            clear: both;
            display: table;
        }
        .search-box {
            background-color: #ecf0f1;
            padding: 2rem;
            border-radius: 10px;
            margin: 2rem 0;
            text-align: center;
        }
        .search-box form {
            display: flex;
            max-width: 600px;
            margin: 0 auto;
        }
        .search-box input {
            flex: 1;
            padding: 0.8rem;
            border: 2px solid #3498db;
            border-radius: 5px 0 0 5px;
            font-size: 1rem;
        }
        .search-box button {
            background-color: #3498db;
            color: white;
            border: none;
            padding: 0.8rem 1.5rem;
            border-radius: 0 5px 5px 0;
            cursor: pointer;
            font-size: 1rem;
            transition: background 0.3s;
        }
        .search-box button:hover {
            background-color: #2980b9;
        }
        .user-feedback {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 2rem;
            margin: 3rem 0;
        }
        .comment-form, .rating-form {
            background-color: #f9f9f9;
            padding: 1.5rem;
            border-radius: 10px;
            border: 1px solid #ddd;
        }
        .comment-form h3, .rating-form h3 {
            color: #2c3e50;
            margin-top: 0;
        }
        .form-group {
            margin-bottom: 1rem;
        }
        .form-group label {
            display: block;
            margin-bottom: 0.5rem;
            font-weight: 600;
        }
        .form-group input, .form-group textarea, .form-group select {
            width: 100%;
            padding: 0.8rem;
            border: 1px solid #ccc;
            border-radius: 5px;
            font-size: 1rem;
        }
        .form-group textarea {
            min-height: 120px;
            resize: vertical;
        }
        .stars {
            display: flex;
            gap: 0.5rem;
            font-size: 1.5rem;
            color: #f1c40f;
            cursor: pointer;
        }
        .stars i:hover {
            transform: scale(1.2);
        }
        .submit-btn {
            background-color: #2ecc71;
            color: white;
            border: none;
            padding: 0.8rem 1.5rem;
            border-radius: 5px;
            cursor: pointer;
            font-size: 1rem;
            transition: background 0.3s;
        }
        .submit-btn:hover {
            background-color: #27ae60;
        }
        footer {
            background-color: #2c3e50;
            color: #ecf0f1;
            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 h3 {
            color: #f1c40f;
            margin-bottom: 1rem;
            font-size: 1.5rem;
        }
        friend-link {
            display: block;
            margin-bottom: 0.8rem;
        }
        friend-link a {
            color: #bdc3c7;
            padding: 0.3rem 0;
            display: inline-block;
        }
        friend-link a:hover {
            color: #f1c40f;
            padding-left: 5px;
            transition: all 0.3s;
        }
        .copyright {
            text-align: center;
            padding-top: 1.5rem;
            border-top: 1px solid #4a6572;
            font-size: 0.9rem;
            color: #95a5a6;
        }
        @media (max-width: 768px) {
            .header-content {
                flex-wrap: wrap;
            }
            nav ul {
                display: none;
                flex-direction: column;
                width: 100%;
                background-color: #1a2980;
                position: absolute;
                top: 100%;
                left: 0;
                padding: 1rem;
                border-radius: 0 0 10px 10px;
                box-shadow: 0 10px 15px rgba(0,0,0,0.2);
            }
            nav ul.active {
                display: flex;
            }
            nav ul li {
                margin: 0.5rem 0;
            }
            .hamburger {
                display: block;
            }
            h1 {
                font-size: 2.2rem;
            }
            h2 {
                font-size: 1.8rem;
            }
            h3 {
                font-size: 1.5rem;
            }
            .section-img {
                float: none;
                margin: 1rem auto;
                max-width: 100%;
            }
            .user-feedback {
                grid-template-columns: 1fr;
            }
        }
        @media (min-width: 769px) and (max-width: 1024px) {
            .container {
                width: 95%;
            }
            h1 {
                font-size: 2.5rem;
            }
        }