* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            line-height: 1.6;
            color: #333;
            background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
        }
        a {
            text-decoration: none;
            color: inherit;
        }
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 15px;
        }
        header {
            background: linear-gradient(90deg, #1e3c72 0%, #2a5298 100%);
            color: white;
            padding: 15px 0;
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
            position: sticky;
            top: 0;
            z-index: 1000;
        }
        .header-top {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .my-logo {
            font-size: 2.2rem;
            font-weight: 800;
            text-transform: uppercase;
            letter-spacing: 2px;
            background: linear-gradient(45deg, #ffcc00, #ff6600);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            transition: transform 0.3s ease;
        }
        .my-logo:hover {
            transform: scale(1.05);
        }
        .hamburger {
            display: none;
            font-size: 1.8rem;
            cursor: pointer;
            color: #ffcc00;
        }
        nav {
            display: flex;
            align-items: center;
            gap: 20px;
        }
        .main-nav {
            display: flex;
            list-style: none;
            gap: 25px;
        }
        .main-nav li a {
            color: white;
            font-weight: 600;
            padding: 8px 12px;
            border-radius: 5px;
            transition: all 0.3s ease;
        }
        .main-nav li a:hover {
            background: #ffcc00;
            color: #1e3c72;
        }
        .breadcrumb {
            padding: 10px 0;
            background: #e9ecef;
            margin-top: 10px;
            border-radius: 5px;
            font-size: 0.9rem;
        }
        .breadcrumb a {
            color: #2a5298;
        }
        .breadcrumb a:hover {
            text-decoration: underline;
        }
        .search-box {
            margin: 25px 0;
            padding: 20px;
            background: white;
            border-radius: 10px;
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
        }
        .search-box form {
            display: flex;
            gap: 10px;
        }
        .search-box input {
            flex: 1;
            padding: 12px 15px;
            border: 2px solid #ddd;
            border-radius: 30px;
            font-size: 1rem;
            transition: border 0.3s;
        }
        .search-box input:focus {
            outline: none;
            border-color: #2a5298;
        }
        .search-box button {
            padding: 12px 25px;
            background: linear-gradient(45deg, #1e3c72, #2a5298);
            color: white;
            border: none;
            border-radius: 30px;
            cursor: pointer;
            font-weight: 600;
            transition: transform 0.3s;
        }
        .search-box button:hover {
            transform: translateY(-3px);
        }
        main {
            padding: 30px 0;
        }
        article {
            background: white;
            padding: 30px;
            border-radius: 15px;
            box-shadow: 0 8px 25px rgba(0, 0, 0, 0.08);
            margin-bottom: 30px;
        }
        h1 {
            font-size: 2.8rem;
            color: #1e3c72;
            margin-bottom: 20px;
            line-height: 1.2;
        }
        h2 {
            font-size: 2rem;
            color: #2a5298;
            margin: 30px 0 15px;
            padding-bottom: 10px;
            border-bottom: 3px solid #ffcc00;
        }
        h3 {
            font-size: 1.5rem;
            color: #333;
            margin: 25px 0 12px;
        }
        h4 {
            font-size: 1.2rem;
            color: #555;
            margin: 20px 0 10px;
        }
        p {
            margin-bottom: 18px;
            text-align: justify;
            font-size: 1.05rem;
        }
        .highlight {
            background: #fffacd;
            padding: 20px;
            border-left: 5px solid #ffcc00;
            margin: 20px 0;
            border-radius: 0 8px 8px 0;
        }
        .highlight strong {
            color: #d35400;
        }
        img {
            max-width: 100%;
            height: auto;
            border-radius: 10px;
            margin: 25px 0;
            box-shadow: 0 6px 15px rgba(0, 0, 0, 0.1);
            display: block;
        }
        .emoji {
            font-size: 1.2rem;
            margin-right: 5px;
        }
        .link-list {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
            gap: 15px;
            margin: 25px 0;
        }
        .link-list a {
            display: block;
            padding: 12px;
            background: #f8f9fa;
            border-radius: 8px;
            border: 1px solid #dee2e6;
            transition: all 0.3s;
            text-align: center;
            font-weight: 600;
            color: #2a5298;
        }
        .link-list a:hover {
            background: #2a5298;
            color: white;
            transform: translateY(-5px);
        }
        .user-feedback {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 25px;
            margin: 40px 0;
        }
        .comment-box, .rating-box {
            background: white;
            padding: 25px;
            border-radius: 10px;
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
        }
        .comment-box h3, .rating-box h3 {
            margin-top: 0;
        }
        .comment-box textarea, .rating-box select, .rating-box input {
            width: 100%;
            padding: 12px;
            margin: 10px 0;
            border: 1px solid #ccc;
            border-radius: 8px;
            font-size: 1rem;
        }
        .comment-box button, .rating-box button {
            padding: 12px 25px;
            background: linear-gradient(45deg, #27ae60, #2ecc71);
            color: white;
            border: none;
            border-radius: 8px;
            cursor: pointer;
            font-weight: 600;
            transition: background 0.3s;
        }
        .comment-box button:hover, .rating-box button:hover {
            background: linear-gradient(45deg, #219653, #27ae60);
        }
        .stars {
            display: flex;
            gap: 5px;
            margin: 10px 0;
        }
        .stars i {
            color: #ffcc00;
            font-size: 1.5rem;
            cursor: pointer;
        }
        footer {
            background: #1e3c72;
            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 h3 {
            color: #ffcc00;
            margin-bottom: 20px;
        }
        friend-link {
            display: block;
            margin: 10px 0;
            color: #c3cfe2;
            transition: color 0.3s;
        }
        friend-link:hover {
            color: #ffcc00;
            text-decoration: underline;
        }
        .copyright {
            text-align: center;
            padding-top: 20px;
            border-top: 1px solid #2a5298;
            font-size: 0.9rem;
            color: #aaa;
        }
        @media (max-width: 768px) {
            .hamburger {
                display: block;
            }
            .main-nav {
                display: none;
                flex-direction: column;
                position: absolute;
                top: 100%;
                left: 0;
                width: 100%;
                background: #1e3c72;
                padding: 20px;
                box-shadow: 0 10px 15px rgba(0,0,0,0.2);
            }
            .main-nav.active {
                display: flex;
            }
            h1 {
                font-size: 2.2rem;
            }
            h2 {
                font-size: 1.8rem;
            }
            .header-top {
                flex-wrap: wrap;
            }
            .search-box form {
                flex-direction: column;
            }
            .user-feedback {
                grid-template-columns: 1fr;
            }
        }
        .last-updated {
            font-style: italic;
            color: #7f8c8d;
            margin-bottom: 20px;
            font-size: 0.95rem;
        }
        .author {
            display: flex;
            align-items: center;
            gap: 15px;
            margin: 25px 0;
            padding: 15px;
            background: #f1f8ff;
            border-radius: 10px;
        }
        .author img {
            width: 80px;
            height: 80px;
            border-radius: 50%;
            margin: 0;
        }