* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            line-height: 1.8;
            color: #333;
            background: linear-gradient(135deg, #f5f7fa 0%, #e4edf5 100%);
            min-height: 100vh;
        }
        a {
            text-decoration: none;
            color: #2a7de1;
            transition: color 0.3s ease;
        }
        a:hover {
            color: #ff6b35;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        header {
            background: linear-gradient(90deg, #1e3c72 0%, #2a5298 100%);
            color: white;
            padding: 1rem 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;
        }
        .logo a {
            font-size: 2.2rem;
            font-weight: 800;
            color: #ffde59;
            text-transform: uppercase;
            letter-spacing: 1px;
            text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
        }
        .logo a:hover {
            color: #fff;
        }
        .hamburger {
            display: none;
            font-size: 1.8rem;
            cursor: pointer;
            background: none;
            border: none;
            color: white;
        }
        nav ul {
            display: flex;
            list-style: none;
            gap: 2rem;
        }
        nav a {
            color: white;
            font-weight: 600;
            padding: 0.5rem 1rem;
            border-radius: 5px;
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }
        nav a:hover {
            background: rgba(255, 255, 255, 0.2);
            transform: translateY(-2px);
        }
        .breadcrumb {
            padding: 1rem 0;
            font-size: 0.9rem;
            color: #ccc;
        }
        .breadcrumb a {
            color: #ffde59;
        }
        main {
            padding: 2rem 0;
            background: white;
            border-radius: 15px;
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.08);
            margin: 2rem auto;
        }
        article {
            padding: 0 2rem;
        }
        h1, h2, h3 {
            color: #1e3c72;
            margin-bottom: 1rem;
            line-height: 1.3;
        }
        h1 {
            font-size: 2.8rem;
            border-bottom: 4px solid #ff6b35;
            padding-bottom: 0.5rem;
            margin-bottom: 2rem;
        }
        h2 {
            font-size: 2.2rem;
            margin-top: 2.5rem;
            background: linear-gradient(90deg, #ffde59, #ff6b35);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }
        h3 {
            font-size: 1.8rem;
            color: #2a5298;
            margin-top: 2rem;
        }
        p {
            margin-bottom: 1.5rem;
            text-align: justify;
            font-size: 1.1rem;
        }
        .highlight {
            background: #fff9e6;
            border-left: 5px solid #ffde59;
            padding: 1.5rem;
            margin: 1.5rem 0;
            border-radius: 0 10px 10px 0;
        }
        .emoji {
            font-size: 1.2em;
            margin-right: 0.3rem;
        }
        .featured-image {
            width: 80%;
            margin: 2rem auto;
            border-radius: 15px;
            overflow: hidden;
            box-shadow: 0 10px 20px rgba(0, 0, 0, 0.2);
        }
        .featured-image img {
            width: 100%;
            height: auto;
            transition: transform 0.5s ease;
        }
        .featured-image img:hover {
            transform: scale(1.03);
        }
        .interactive-section {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 2rem;
            margin: 3rem 0;
        }
        .card {
            background: #f8f9fa;
            border: 1px solid #e1e5eb;
            border-radius: 12px;
            padding: 2rem;
            transition: all 0.3s ease;
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
        }
        .card:hover {
            transform: translateY(-10px);
            box-shadow: 0 15px 30px rgba(0, 0, 0, 0.1);
            border-color: #2a7de1;
        }
        .card h3 {
            color: #ff6b35;
        }
        form {
            display: flex;
            flex-direction: column;
            gap: 1rem;
        }
        input, textarea, select {
            padding: 1rem;
            border: 2px solid #ddd;
            border-radius: 8px;
            font-size: 1rem;
            transition: border-color 0.3s ease;
        }
        input:focus, textarea:focus, select:focus {
            border-color: #2a7de1;
            outline: none;
        }
        button {
            padding: 1rem 2rem;
            background: linear-gradient(90deg, #2a7de1, #1e3c72);
            color: white;
            border: none;
            border-radius: 8px;
            font-size: 1.1rem;
            font-weight: 600;
            cursor: pointer;
            transition: all 0.3s ease;
        }
        button:hover {
            background: linear-gradient(90deg, #ff6b35, #ffde59);
            transform: scale(1.05);
        }
        .rating {
            display: flex;
            gap: 0.5rem;
            font-size: 1.5rem;
            color: #ffde59;
            margin: 1rem 0;
        }
        .rating i {
            cursor: pointer;
            transition: color 0.3s ease;
        }
        .rating i:hover {
            color: #ff6b35;
        }
        footer {
            background: #1a1a2e;
            color: #fff;
            padding: 3rem 0 1.5rem;
            margin-top: 3rem;
        }
        .footer-content {
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            gap: 2rem;
            margin-bottom: 2rem;
        }
        .footer-section {
            flex: 1;
            min-width: 250px;
        }
        .footer-section h3 {
            color: #ffde59;
            font-size: 1.5rem;
            margin-bottom: 1.5rem;
        }
        friend-link {
            display: block;
            margin-bottom: 0.8rem;
        }
        friend-link a {
            color: #e4edf5;
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }
        friend-link a:hover {
            color: #ffde59;
        }
        .copyright {
            text-align: center;
            padding-top: 1.5rem;
            border-top: 1px solid #2d3748;
            font-size: 0.9rem;
            color: #a0aec0;
        }
        @media (max-width: 768px) {
            .hamburger {
                display: block;
            }
            nav ul {
                flex-direction: column;
                position: absolute;
                top: 100%;
                left: 0;
                width: 100%;
                background: #1e3c72;
                padding: 1rem;
                display: none;
                box-shadow: 0 10px 15px rgba(0, 0, 0, 0.2);
            }
            nav ul.show {
                display: flex;
            }
            h1 {
                font-size: 2.2rem;
            }
            h2 {
                font-size: 1.8rem;
            }
            h3 {
                font-size: 1.5rem;
            }
            article {
                padding: 0 1rem;
            }
            .featured-image {
                width: 95%;
            }
            .interactive-section {
                grid-template-columns: 1fr;
            }
            .header-top {
                flex-wrap: wrap;
            }
            .logo a {
                font-size: 1.8rem;
            }
        }
        @media (min-width: 769px) and (max-width: 1024px) {
            .container {
                padding: 0 15px;
            }
            h1 {
                font-size: 2.5rem;
            }
        }