* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            line-height: 1.6;
            color: #333;
            background-color: #f8f9fa;
            background-image: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 15px;
        }
        header {
            background: linear-gradient(90deg, #1a237e 0%, #283593 50%, #3949ab 100%);
            color: white;
            padding: 1.5rem 0;
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
            border-radius: 0 0 12px 12px;
            position: sticky;
            top: 0;
            z-index: 1000;
        }
        .header-container {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 0 20px;
            flex-wrap: wrap;
        }
        .my-logo {
            font-family: 'Arial Black', sans-serif;
            font-size: 2.2rem;
            background: linear-gradient(45deg, #FF9800, #FF5722);
            -webkit-background-clip: text;
            background-clip: text;
            color: transparent;
            text-decoration: none;
            display: flex;
            align-items: center;
            gap: 10px;
            transition: transform 0.3s ease;
        }
        .my-logo:hover {
            transform: scale(1.05);
        }
        .my-logo i {
            color: #FF9800;
            font-size: 2.5rem;
        }
        .hamburger {
            display: none;
            background: none;
            border: none;
            color: white;
            font-size: 1.8rem;
            cursor: pointer;
            padding: 5px;
        }
        nav ul {
            display: flex;
            list-style: none;
            gap: 1.8rem;
            flex-wrap: wrap;
        }
        nav a {
            color: white;
            text-decoration: none;
            font-weight: 600;
            font-size: 1.05rem;
            padding: 8px 12px;
            border-radius: 6px;
            transition: all 0.3s ease;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        nav a:hover {
            background-color: rgba(255, 255, 255, 0.15);
            transform: translateY(-2px);
        }
        .breadcrumb {
            padding: 12px 25px;
            background-color: #e8eaf6;
            border-radius: 8px;
            margin: 15px 20px;
            font-size: 0.9rem;
        }
        .breadcrumb a {
            color: #3949ab;
            text-decoration: none;
        }
        .breadcrumb a:hover {
            text-decoration: underline;
        }
        main {
            background-color: white;
            border-radius: 12px;
            box-shadow: 0 6px 20px rgba(0, 0, 0, 0.08);
            padding: 2.5rem;
            margin: 2rem 0;
            overflow: hidden;
        }
        h1 {
            color: #1a237e;
            font-size: 2.8rem;
            margin-bottom: 1.2rem;
            border-bottom: 3px solid #FF9800;
            padding-bottom: 10px;
            line-height: 1.2;
        }
        h2 {
            color: #283593;
            font-size: 2.1rem;
            margin: 2.5rem 0 1.2rem;
            padding-left: 10px;
            border-left: 5px solid #3949ab;
        }
        h3 {
            color: #3949ab;
            font-size: 1.7rem;
            margin: 2rem 0 1rem;
        }
        h4 {
            color: #5c6bc0;
            font-size: 1.4rem;
            margin: 1.5rem 0 0.8rem;
        }
        p {
            margin-bottom: 1.2rem;
            text-align: justify;
            font-size: 1.1rem;
        }
        strong {
            color: #1a237e;
            font-weight: 700;
        }
        em {
            color: #d84315;
            font-style: italic;
        }
        .intro {
            font-size: 1.2rem;
            background-color: #e3f2fd;
            padding: 1.5rem;
            border-radius: 10px;
            border-left: 5px solid #2196f3;
            margin-bottom: 2rem;
        }
        .highlight-box {
            background: linear-gradient(145deg, #fff8e1, #ffecb3);
            border: 2px solid #ffb300;
            border-radius: 12px;
            padding: 1.8rem;
            margin: 2rem 0;
            box-shadow: 0 4px 8px rgba(255, 179, 0, 0.2);
        }
        .hero-image {
            width: 100%;
            max-height: 500px;
            object-fit: cover;
            border-radius: 12px;
            margin: 2rem 0;
            box-shadow: 0 8px 16px rgba(0, 0, 0, 0.15);
            transition: transform 0.5s ease;
        }
        .hero-image:hover {
            transform: scale(1.01);
        }
        .float-img {
            float: right;
            max-width: 45%;
            margin: 15px 0 15px 25px;
            border-radius: 10px;
            box-shadow: 0 6px 12px rgba(0, 0, 0, 0.1);
        }
        .link-list {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
            gap: 15px;
            margin: 2rem 0;
        }
        .link-card {
            background: #f5f5f5;
            border-radius: 10px;
            padding: 1.2rem;
            transition: all 0.3s ease;
            border: 1px solid #e0e0e0;
        }
        .link-card:hover {
            background: #e8eaf6;
            transform: translateY(-5px);
            box-shadow: 0 6px 12px rgba(57, 73, 171, 0.15);
        }
        .link-card a {
            color: #3949ab;
            text-decoration: none;
            font-weight: 600;
            display: block;
            font-size: 1.1rem;
        }
        .link-card a:hover {
            text-decoration: underline;
        }
        .feature-section {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 25px;
            margin: 3rem 0;
        }
        .feature-card {
            background: white;
            border-radius: 12px;
            padding: 1.8rem;
            box-shadow: 0 6px 15px rgba(0, 0, 0, 0.08);
            border-top: 4px solid #FF9800;
            transition: transform 0.3s ease;
        }
        .feature-card:hover {
            transform: translateY(-8px);
        }
        .feature-card h3 {
            color: #1a237e;
            font-size: 1.5rem;
            margin-top: 0;
        }
        .rating-stars {
            color: #ffb300;
            font-size: 1.5rem;
            margin: 10px 0;
        }
        .rating-stars i {
            cursor: pointer;
            transition: color 0.2s;
        }
        .rating-stars i:hover {
            color: #ff8f00;
        }
        form {
            background: #f9f9f9;
            padding: 1.8rem;
            border-radius: 10px;
            margin: 2rem 0;
            border: 1px solid #ddd;
        }
        label {
            display: block;
            margin-bottom: 8px;
            font-weight: 600;
            color: #333;
        }
        input, textarea, select {
            width: 100%;
            padding: 12px;
            margin-bottom: 1.2rem;
            border: 1px solid #ccc;
            border-radius: 6px;
            font-family: inherit;
            font-size: 1rem;
            transition: border 0.3s;
        }
        input:focus, textarea:focus, select:focus {
            border-color: #3949ab;
            outline: none;
            box-shadow: 0 0 0 3px rgba(57, 73, 171, 0.1);
        }
        button {
            background: linear-gradient(90deg, #1a237e, #3949ab);
            color: white;
            border: none;
            padding: 14px 28px;
            border-radius: 8px;
            font-size: 1.1rem;
            font-weight: 600;
            cursor: pointer;
            transition: all 0.3s ease;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        button:hover {
            background: linear-gradient(90deg, #3949ab, #1a237e);
            transform: translateY(-3px);
            box-shadow: 0 6px 12px rgba(57, 73, 171, 0.3);
        }
        footer {
            background: linear-gradient(90deg, #1a237e 0%, #283593 100%);
            color: white;
            padding: 2.5rem 0;
            border-radius: 12px 12px 0 0;
            margin-top: 3rem;
        }
        .footer-container {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 2.5rem;
            padding: 0 25px;
        }
        .footer-section h3 {
            color: #FF9800;
            font-size: 1.5rem;
            margin-bottom: 1.2rem;
            border-bottom: 2px solid #FF9800;
            padding-bottom: 8px;
            display: inline-block;
        }
        friend-link {
            display: block;
            margin-bottom: 10px;
        }
        friend-link a {
            color: #c5cae9;
            text-decoration: none;
            transition: color 0.3s;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        friend-link a:hover {
            color: #FF9800;
        }
        .copyright {
            text-align: center;
            padding-top: 2rem;
            margin-top: 2rem;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            font-size: 0.9rem;
            color: #c5cae9;
        }
        @media (max-width: 992px) {
            h1 { font-size: 2.4rem; }
            h2 { font-size: 1.9rem; }
            h3 { font-size: 1.5rem; }
            .header-container { flex-direction: column; align-items: flex-start; }
            nav ul { margin-top: 1.5rem; width: 100%; justify-content: center; }
        }
        @media (max-width: 768px) {
            .hamburger { display: block; }
            nav ul {
                display: none;
                flex-direction: column;
                width: 100%;
                background-color: #283593;
                border-radius: 8px;
                padding: 1rem;
                margin-top: 1rem;
            }
            nav ul.active { display: flex; }
            .float-img { float: none; max-width: 100%; margin: 1.5rem 0; }
            .link-list { grid-template-columns: 1fr; }
            .feature-section { grid-template-columns: 1fr; }
            main { padding: 1.5rem; }
        }
        @media (max-width: 576px) {
            body { padding: 0 10px; }
            h1 { font-size: 2rem; }
            h2 { font-size: 1.6rem; }
            .my-logo { font-size: 1.8rem; }
            .breadcrumb { padding: 10px 15px; margin: 10px; }
        }
        .text-center { text-align: center; }
        .mb-3 { margin-bottom: 3rem; }
        .mt-3 { margin-top: 3rem; }
        .emoji { font-size: 1.2em; margin-right: 5px; }
        .last-updated {
            background-color: #e8f5e9;
            padding: 10px 15px;
            border-radius: 8px;
            font-style: italic;
            color: #2e7d32;
            display: inline-block;
            margin-bottom: 1.5rem;
        }