* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            line-height: 1.7;
            color: #333;
            background-color: #f9f9f9;
            overflow-x: hidden;
        }
        a {
            color: #e63946;
            text-decoration: none;
            transition: color 0.3s ease;
        }
        a:hover {
            color: #a8dadc;
        }
        img {
            max-width: 100%;
            height: auto;
            border-radius: 8px;
        }
        header {
            background: linear-gradient(135deg, #1d3557 0%, #457b9d 100%);
            color: white;
            padding: 1rem 2rem;
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
        }
        .header-container {
            display: flex;
            justify-content: space-between;
            align-items: center;
            max-width: 1400px;
            margin: 0 auto;
        }
        .logo a {
            font-size: 2.2rem;
            font-weight: 900;
            color: #f1faee;
            text-transform: uppercase;
            letter-spacing: 2px;
            font-family: 'Arial Black', sans-serif;
        }
        .logo a:hover {
            color: #a8dadc;
        }
        .my-logo {
            border: 3px solid #e63946;
            padding: 0.5rem 1rem;
            border-radius: 10px;
            background: rgba(255, 255, 255, 0.1);
        }
        nav ul {
            display: flex;
            list-style: none;
            gap: 2rem;
        }
        nav ul li a {
            color: #f1faee;
            font-weight: 600;
            font-size: 1.1rem;
            padding: 0.5rem 1rem;
            border-radius: 5px;
        }
        nav ul li a:hover {
            background: #e63946;
        }
        .hamburger {
            display: none;
            font-size: 1.8rem;
            cursor: pointer;
            color: #f1faee;
        }
        .nav-menu {
            display: flex;
        }
        .breadcrumb {
            background: #a8dadc;
            padding: 0.8rem 2rem;
            font-size: 0.95rem;
            max-width: 1400px;
            margin: 0 auto;
        }
        .breadcrumb a {
            color: #1d3557;
        }
        .breadcrumb a:hover {
            text-decoration: underline;
        }
        .container {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 2rem;
            max-width: 1400px;
            margin: 2rem auto;
            padding: 0 2rem;
        }
        main {
            background: white;
            padding: 2.5rem;
            border-radius: 12px;
            box-shadow: 0 6px 20px rgba(0, 0, 0, 0.08);
        }
        aside {
            background: #f1faee;
            padding: 1.5rem;
            border-radius: 12px;
            height: fit-content;
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
        }
        h1 {
            font-size: 3rem;
            color: #1d3557;
            margin-bottom: 1.5rem;
            border-bottom: 4px solid #e63946;
            padding-bottom: 0.5rem;
        }
        h2 {
            font-size: 2.2rem;
            color: #457b9d;
            margin: 2.5rem 0 1rem;
            padding-left: 0.5rem;
            border-left: 5px solid #a8dadc;
        }
        h3 {
            font-size: 1.8rem;
            color: #1d3557;
            margin: 2rem 0 0.8rem;
        }
        h4 {
            font-size: 1.4rem;
            color: #e63946;
            margin: 1.5rem 0 0.5rem;
        }
        p {
            margin-bottom: 1.5rem;
            text-align: justify;
            font-size: 1.1rem;
            color: #444;
        }
        .highlight {
            background: #ffeb3b;
            padding: 0.2rem 0.5rem;
            border-radius: 3px;
            font-weight: bold;
        }
        strong {
            color: #1d3557;
        }
        em {
            color: #457b9d;
        }
        .emoji {
            font-size: 1.2em;
            margin-right: 0.3rem;
        }
        .form-section {
            background: #f8f9fa;
            padding: 2rem;
            border-radius: 10px;
            margin: 2.5rem 0;
            border: 1px solid #ddd;
        }
        form {
            display: flex;
            flex-direction: column;
            gap: 1rem;
        }
        input, textarea, select {
            padding: 0.8rem;
            border: 1px solid #ccc;
            border-radius: 5px;
            font-size: 1rem;
            width: 100%;
        }
        button {
            background: #e63946;
            color: white;
            border: none;
            padding: 1rem 1.5rem;
            border-radius: 5px;
            font-size: 1.1rem;
            cursor: pointer;
            transition: background 0.3s ease;
            font-weight: bold;
        }
        button:hover {
            background: #b31b35;
        }
        .rating {
            display: flex;
            gap: 0.5rem;
            margin: 1rem 0;
        }
        .rating input {
            display: none;
        }
        .rating label {
            font-size: 2rem;
            color: #ccc;
            cursor: pointer;
        }
        .rating input:checked ~ label,
        .rating label:hover,
        .rating label:hover ~ label {
            color: #ffc107;
        }
        .feature-img {
            margin: 2rem auto;
            text-align: center;
        }
        .feature-img img {
            box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
            border: 5px solid #a8dadc;
        }
        .internal-links {
            background: #e9f5db;
            padding: 1.5rem;
            border-radius: 8px;
            margin: 2rem 0;
        }
        .internal-links ul {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
            gap: 1rem;
            list-style: none;
        }
        .internal-links li a {
            color: #1d3557;
            display: block;
            padding: 0.5rem;
            border-radius: 5px;
            background: #c7f9cc;
        }
        .internal-links li a:hover {
            background: #a8dadc;
        }
        footer {
            background: #1d3557;
            color: #f1faee;
            padding: 3rem 2rem;
            margin-top: 3rem;
        }
        .footer-container {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 2rem;
            max-width: 1400px;
            margin: 0 auto;
        }
        .friend-links {
            background: rgba(255, 255, 255, 0.1);
            padding: 1.5rem;
            border-radius: 10px;
        }
        friend-link {
            display: block;
            margin: 0.8rem 0;
            font-size: 1.1rem;
        }
        friend-link a {
            color: #a8dadc;
        }
        friend-link a:hover {
            color: #f1faee;
            text-decoration: underline;
        }
        .copyright {
            text-align: center;
            margin-top: 2rem;
            padding-top: 2rem;
            border-top: 1px solid #457b9d;
            font-size: 0.9rem;
            color: #ccc;
        }
        @media (max-width: 1024px) {
            .container {
                grid-template-columns: 1fr;
                padding: 0 1.5rem;
            }
            h1 {
                font-size: 2.5rem;
            }
            h2 {
                font-size: 2rem;
            }
        }
        @media (max-width: 768px) {
            .header-container {
                flex-wrap: wrap;
            }
            .hamburger {
                display: block;
            }
            .nav-menu {
                display: none;
                flex-direction: column;
                width: 100%;
                background: #457b9d;
                margin-top: 1rem;
                padding: 1rem;
                border-radius: 8px;
            }
            .nav-menu.active {
                display: flex;
            }
            nav ul {
                flex-direction: column;
                gap: 1rem;
            }
            main {
                padding: 1.5rem;
            }
            .container {
                padding: 0 1rem;
            }
            h1 {
                font-size: 2rem;
            }
            h2 {
                font-size: 1.8rem;
            }
        }
        @media (max-width: 480px) {
            .header-container, .breadcrumb, .container, .footer-container {
                padding-left: 1rem;
                padding-right: 1rem;
            }
            .logo a {
                font-size: 1.8rem;
            }
            .form-section {
                padding: 1.5rem;
            }
        }
        .last-updated {
            font-style: italic;
            color: #666;
            margin: 1rem 0;
            text-align: right;
        }
        .separator {
            height: 2px;
            background: linear-gradient(to right, #e63946, #a8dadc);
            margin: 2rem 0;
            border: none;
        }