* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
        }
        body {
            background-color: #0a0a1a;
            color: #e0e0ff;
            line-height: 1.7;
            overflow-x: hidden;
        }
        a {
            color: #4dabf7;
            text-decoration: none;
            transition: color 0.3s ease;
        }
        a:hover {
            color: #ffcc00;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        header {
            background: linear-gradient(135deg, #000428 0%, #004e92 100%);
            padding: 20px 0;
            border-bottom: 3px solid #ffcc00;
            position: sticky;
            top: 0;
            z-index: 1000;
        }
        .header-content {
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
        }
        .my-logo {
            font-size: 2.5rem;
            font-weight: 900;
            background: linear-gradient(90deg, #ffcc00, #ff6b6b);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            text-transform: uppercase;
            letter-spacing: 2px;
        }
        .my-logo:hover {
            transform: scale(1.05);
            transition: transform 0.3s ease;
        }
        nav {
            display: flex;
            align-items: center;
        }
        .nav-links {
            display: flex;
            list-style: none;
            gap: 30px;
        }
        .nav-links a {
            font-size: 1.1rem;
            font-weight: 600;
            padding: 10px 15px;
            border-radius: 5px;
        }
        .nav-links a:hover {
            background-color: rgba(255, 204, 0, 0.2);
        }
        .hamburger {
            display: none;
            font-size: 1.8rem;
            cursor: pointer;
            color: #ffcc00;
        }
        .breadcrumb {
            padding: 15px 0;
            background-color: #111133;
            margin-bottom: 20px;
        }
        .breadcrumb ol {
            display: flex;
            list-style: none;
            gap: 10px;
            flex-wrap: wrap;
        }
        .breadcrumb li:not(:last-child)::after {
            content: '›';
            margin-left: 10px;
            color: #ffcc00;
        }
        main {
            padding: 30px 0;
            background-color: #0f0f2a;
            border-radius: 10px;
            margin-bottom: 30px;
        }
        article {
            max-width: 900px;
            margin: 0 auto;
            padding: 20px;
        }
        h1 {
            font-size: 3.5rem;
            color: #ffcc00;
            text-align: center;
            margin-bottom: 30px;
            text-shadow: 0 0 10px rgba(255, 204, 0, 0.5);
        }
        h2 {
            font-size: 2.5rem;
            color: #4dabf7;
            margin-top: 40px;
            margin-bottom: 20px;
            border-left: 5px solid #ffcc00;
            padding-left: 15px;
        }
        h3 {
            font-size: 2rem;
            color: #a5d8ff;
            margin-top: 30px;
            margin-bottom: 15px;
        }
        h4 {
            font-size: 1.5rem;
            color: #b3e0ff;
            margin-top: 25px;
            margin-bottom: 10px;
        }
        p {
            margin-bottom: 20px;
            font-size: 1.2rem;
            text-align: justify;
        }
        .highlight {
            background-color: rgba(255, 204, 0, 0.1);
            border-left: 4px solid #ffcc00;
            padding: 20px;
            margin: 25px 0;
            border-radius: 0 8px 8px 0;
        }
        .emoji {
            font-size: 1.5rem;
            margin-right: 10px;
        }
        .feature-img {
            width: 80%;
            margin: 30px auto;
            border-radius: 15px;
            border: 3px solid #004e92;
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.7);
            transition: transform 0.5s ease;
        }
        .feature-img:hover {
            transform: scale(1.02);
        }
        .functional-section {
            background-color: #151540;
            padding: 30px;
            border-radius: 15px;
            margin: 40px 0;
            border: 2px solid #004e92;
        }
        .section-title {
            color: #ffcc00;
            font-size: 2rem;
            margin-bottom: 20px;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        form {
            display: grid;
            gap: 20px;
            max-width: 600px;
            margin: 0 auto;
        }
        input, textarea, select {
            width: 100%;
            padding: 15px;
            border-radius: 8px;
            border: 2px solid #004e92;
            background-color: #0a0a1a;
            color: #e0e0ff;
            font-size: 1.1rem;
        }
        button {
            background: linear-gradient(90deg, #004e92, #000428);
            color: white;
            border: none;
            padding: 15px 30px;
            border-radius: 8px;
            font-size: 1.2rem;
            cursor: pointer;
            transition: all 0.3s ease;
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 10px;
        }
        button:hover {
            background: linear-gradient(90deg, #ffcc00, #ff6b6b);
            transform: translateY(-3px);
            box-shadow: 0 10px 20px rgba(255, 204, 0, 0.3);
        }
        .stars {
            display: flex;
            gap: 10px;
            justify-content: center;
            margin: 20px 0;
        }
        .star {
            font-size: 2rem;
            color: #444;
            cursor: pointer;
            transition: color 0.2s;
        }
        .star:hover,
        .star.active {
            color: #ffcc00;
        }
        footer {
            background: linear-gradient(135deg, #000428 0%, #004e92 100%);
            padding: 40px 0;
            border-top: 3px solid #ffcc00;
        }
        friend-link {
            display: block;
            margin: 20px 0;
            font-size: 1.3rem;
            text-align: center;
        }
        friend-link a {
            color: #a5d8ff;
            padding: 10px 20px;
            border-radius: 5px;
            background-color: rgba(255, 255, 255, 0.05);
        }
        friend-link a:hover {
            background-color: rgba(255, 204, 0, 0.3);
        }
        .copyright {
            text-align: center;
            margin-top: 30px;
            padding-top: 20px;
            border-top: 1px solid #4dabf7;
            color: #b3e0ff;
            font-size: 1rem;
        }
        @media (max-width: 768px) {
            .header-content {
                flex-direction: column;
                align-items: flex-start;
            }
            .nav-links {
                display: none;
                flex-direction: column;
                width: 100%;
                margin-top: 20px;
                gap: 10px;
            }
            .nav-links.active {
                display: flex;
            }
            .hamburger {
                display: block;
                position: absolute;
                top: 25px;
                right: 20px;
            }
            h1 {
                font-size: 2.5rem;
            }
            h2 {
                font-size: 2rem;
            }
            h3 {
                font-size: 1.7rem;
            }
            .feature-img {
                width: 95%;
            }
            .functional-section {
                padding: 20px;
            }
        }
        @media (min-width: 769px) {
            .nav-links {
                display: flex !important;
            }
        }
        .grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 30px;
            margin: 30px 0;
        }
        .flex {
            display: flex;
            flex-wrap: wrap;
            gap: 20px;
            align-items: center;
        }