* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
        }
        body {
            background: linear-gradient(135deg, #0c2461, #1e3799);
            color: #f7f7f7;
            line-height: 1.8;
            font-size: 18px;
            overflow-x: hidden;
            padding-bottom: 40px;
        }
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        header {
            background: rgba(22, 33, 62, 0.95);
            backdrop-filter: blur(10px);
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.5);
            padding: 15px 0;
        }
        .header-content {
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
        }
        .my-logo {
            font-size: 2.2rem;
            font-weight: 800;
            color: #ff9f1a;
            text-decoration: none;
            text-transform: uppercase;
            letter-spacing: 2px;
            transition: transform 0.3s ease, color 0.3s ease;
        }
        .my-logo:hover {
            transform: scale(1.05);
            color: #ffd32a;
        }
        .my-logo i {
            margin-right: 10px;
            color: #ff9f1a;
        }
        nav {
            display: flex;
            align-items: center;
        }
        .nav-links {
            display: flex;
            list-style: none;
            gap: 25px;
        }
        .nav-links a {
            color: #f7f7f7;
            text-decoration: none;
            font-weight: 600;
            font-size: 1.1rem;
            padding: 8px 15px;
            border-radius: 8px;
            transition: all 0.3s ease;
            position: relative;
        }
        .nav-links a:hover {
            background: #ff9f1a;
            color: #0c2461;
            transform: translateY(-3px);
        }
        .nav-links a::after {
            content: '';
            position: absolute;
            bottom: -5px;
            left: 50%;
            width: 0;
            height: 3px;
            background: #ff9f1a;
            transition: all 0.3s ease;
            transform: translateX(-50%);
        }
        .nav-links a:hover::after {
            width: 80%;
        }
        .hamburger {
            display: none;
            font-size: 1.8rem;
            color: #ff9f1a;
            background: none;
            border: none;
            cursor: pointer;
            padding: 10px;
        }
        .breadcrumb {
            background: rgba(255, 159, 26, 0.1);
            padding: 12px 20px;
            border-radius: 10px;
            margin: 20px 0;
            font-size: 0.95rem;
        }
        .breadcrumb a {
            color: #ffd32a;
            text-decoration: none;
            transition: color 0.3s;
        }
        .breadcrumb a:hover {
            color: #ff9f1a;
            text-decoration: underline;
        }
        .breadcrumb span {
            color: #aaa;
            margin: 0 8px;
        }
        main {
            background: rgba(30, 55, 153, 0.7);
            border-radius: 20px;
            padding: 30px;
            margin-top: 20px;
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.4);
        }
        h1 {
            font-size: 3.2rem;
            color: #ff9f1a;
            text-align: center;
            margin-bottom: 25px;
            text-shadow: 2px 2px 5px rgba(0, 0, 0, 0.5);
            line-height: 1.2;
        }
        h2 {
            font-size: 2.5rem;
            color: #ffd32a;
            margin: 40px 0 20px;
            padding-bottom: 10px;
            border-bottom: 3px solid #ff9f1a;
        }
        h3 {
            font-size: 1.9rem;
            color: #4bcffa;
            margin: 30px 0 15px;
        }
        h4 {
            font-size: 1.5rem;
            color: #7efff5;
            margin: 25px 0 12px;
        }
        p {
            margin-bottom: 25px;
            text-align: justify;
            padding: 0 10px;
        }
        .highlight {
            background: rgba(255, 159, 26, 0.2);
            border-left: 5px solid #ff9f1a;
            padding: 20px;
            border-radius: 0 10px 10px 0;
            margin: 25px 0;
            font-weight: 600;
        }
        .emoji {
            font-size: 1.3em;
            margin-right: 10px;
        }
        .feature-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 25px;
            margin: 40px 0;
        }
        .feature-card {
            background: rgba(255, 255, 255, 0.1);
            border-radius: 15px;
            padding: 25px;
            transition: transform 0.4s, box-shadow 0.4s;
            border: 1px solid rgba(255, 159, 26, 0.3);
        }
        .feature-card:hover {
            transform: translateY(-10px);
            box-shadow: 0 15px 25px rgba(255, 159, 26, 0.3);
            background: rgba(255, 159, 26, 0.15);
        }
        .feature-card h3 {
            color: #ffd32a;
        }
        .content-img {
            width: 100%;
            max-width: 800px;
            height: auto;
            border-radius: 15px;
            margin: 30px auto;
            display: block;
            box-shadow: 0 10px 20px rgba(0, 0, 0, 0.5);
            border: 3px solid #ff9f1a;
            transition: transform 0.5s;
        }
        .content-img:hover {
            transform: scale(1.02);
        }
        .interactive-section {
            background: rgba(22, 33, 62, 0.8);
            border-radius: 15px;
            padding: 30px;
            margin: 40px 0;
            border: 2px dashed #ff9f1a;
        }
        .form-group {
            margin-bottom: 25px;
        }
        .form-group label {
            display: block;
            margin-bottom: 10px;
            font-weight: 600;
            color: #ffd32a;
        }
        .form-group input,
        .form-group textarea,
        .form-group select {
            width: 100%;
            padding: 15px;
            border-radius: 10px;
            border: 2px solid #4bcffa;
            background: rgba(255, 255, 255, 0.1);
            color: #f7f7f7;
            font-size: 1rem;
            transition: border 0.3s;
        }
        .form-group input:focus,
        .form-group textarea:focus,
        .form-group select:focus {
            border-color: #ff9f1a;
            outline: none;
        }
        .form-group textarea {
            min-height: 150px;
            resize: vertical;
        }
        .btn {
            background: linear-gradient(45deg, #ff9f1a, #ffd32a);
            color: #0c2461;
            border: none;
            padding: 15px 30px;
            border-radius: 10px;
            font-size: 1.1rem;
            font-weight: 700;
            cursor: pointer;
            transition: all 0.3s ease;
            display: inline-block;
            text-align: center;
        }
        .btn:hover {
            transform: translateY(-5px);
            box-shadow: 0 10px 20px rgba(255, 159, 26, 0.5);
            background: linear-gradient(45deg, #ffd32a, #ff9f1a);
        }
        .rating {
            display: flex;
            gap: 15px;
            align-items: center;
            flex-wrap: wrap;
        }
        .rating input[type="radio"] {
            display: none;
        }
        .rating label {
            font-size: 2.5rem;
            color: #aaa;
            cursor: pointer;
            transition: color 0.3s;
        }
        .rating label:hover,
        .rating label:hover ~ label,
        .rating input:checked ~ label {
            color: #ffd32a;
        }
        a.content-link {
            color: #4bcffa;
            text-decoration: underline;
            font-weight: 600;
            transition: color 0.3s;
        }
        a.content-link:hover {
            color: #ff9f1a;
            text-decoration: none;
        }
        footer {
            background: rgba(22, 33, 62, 0.95);
            border-radius: 20px;
            padding: 40px 30px;
            margin-top: 50px;
            text-align: center;
            box-shadow: 0 -5px 20px rgba(0, 0, 0, 0.3);
        }
        friend-link {
            display: block;
            margin: 25px 0;
            font-size: 1.2rem;
        }
        friend-link a {
            color: #ffd32a;
            text-decoration: none;
            margin: 0 15px;
            padding: 10px 15px;
            border-radius: 8px;
            transition: all 0.3s;
        }
        friend-link a:hover {
            background: #ff9f1a;
            color: #0c2461;
        }
        .copyright {
            margin-top: 30px;
            padding-top: 20px;
            border-top: 1px solid rgba(255, 255, 255, 0.2);
            color: #aaa;
            font-size: 0.9rem;
        }
        @media (max-width: 992px) {
            h1 { font-size: 2.8rem; }
            h2 { font-size: 2.2rem; }
            h3 { font-size: 1.7rem; }
            .nav-links { gap: 15px; }
        }
        @media (max-width: 768px) {
            .header-content { flex-direction: column; align-items: flex-start; }
            .hamburger { display: block; }
            .nav-links {
                display: none;
                flex-direction: column;
                width: 100%;
                margin-top: 20px;
                background: rgba(22, 33, 62, 0.98);
                border-radius: 10px;
                padding: 20px;
            }
            .nav-links.active { display: flex; }
            .nav-links a { width: 100%; text-align: center; }
            h1 { font-size: 2.3rem; }
            h2 { font-size: 1.9rem; }
            .feature-grid { grid-template-columns: 1fr; }
            .container { padding: 0 15px; }
            main { padding: 20px; }
        }
        @media (max-width: 480px) {
            h1 { font-size: 1.9rem; }
            h2 { font-size: 1.6rem; }
            body { font-size: 16px; }
            .btn { padding: 12px 20px; }
            .my-logo { font-size: 1.8rem; }
        }