* {
            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-color: #f9f9f9;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        a {
            color: #1a73e8;
            text-decoration: none;
            transition: color 0.3s ease, transform 0.2s ease;
        }
        a:hover {
            color: #0d47a1;
            transform: translateY(-2px);
        }
        img {
            max-width: 100%;
            height: auto;
            border-radius: 8px;
            box-shadow: 0 4px 12px rgba(0,0,0,0.1);
        }
        header {
            background: linear-gradient(135deg, #1e3c72, #2a5298);
            color: white;
            padding: 20px 0;
            border-bottom: 5px solid #ff9800;
            position: sticky;
            top: 0;
            z-index: 1000;
        }
        .header-container {
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
        }
        .my-logo {
            font-size: 2.5rem;
            font-weight: bold;
            color: white;
            text-shadow: 2px 2px 4px rgba(0,0,0,0.5);
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .my-logo i {
            color: #ff9800;
        }
        .my-logo:hover {
            transform: scale(1.05);
        }
        nav {
            display: flex;
            align-items: center;
        }
        .nav-links {
            display: flex;
            list-style: none;
            gap: 25px;
        }
        .nav-links a {
            color: white;
            font-weight: 600;
            padding: 10px 15px;
            border-radius: 5px;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .nav-links a:hover {
            background-color: rgba(255, 255, 255, 0.2);
            transform: translateY(-3px);
        }
        .hamburger {
            display: none;
            font-size: 1.8rem;
            cursor: pointer;
            color: white;
            background: none;
            border: none;
        }
        .breadcrumb {
            padding: 15px 0;
            background-color: #e8f0fe;
            border-radius: 0 0 8px 8px;
            margin-bottom: 20px;
        }
        .breadcrumb ol {
            display: flex;
            list-style: none;
            flex-wrap: wrap;
            gap: 10px;
        }
        .breadcrumb li {
            display: flex;
            align-items: center;
        }
        .breadcrumb a {
            color: #5f6368;
        }
        .breadcrumb a:hover {
            color: #1a73e8;
        }
        .breadcrumb i {
            margin: 0 8px;
            color: #5f6368;
            font-size: 0.9rem;
        }
        main {
            display: grid;
            grid-template-columns: 1fr;
            gap: 30px;
            margin: 30px 0;
        }
        article {
            background-color: white;
            padding: 30px;
            border-radius: 12px;
            box-shadow: 0 6px 20px rgba(0,0,0,0.08);
        }
        h1 {
            color: #1a237e;
            font-size: 3rem;
            margin-bottom: 20px;
            border-bottom: 3px solid #ff9800;
            padding-bottom: 15px;
        }
        h2 {
            color: #283593;
            font-size: 2.2rem;
            margin: 30px 0 15px;
            padding-left: 10px;
            border-left: 5px solid #4caf50;
        }
        h3 {
            color: #3949ab;
            font-size: 1.8rem;
            margin: 25px 0 10px;
        }
        h4 {
            color: #5c6bc0;
            font-size: 1.5rem;
            margin: 20px 0 10px;
        }
        p {
            margin-bottom: 20px;
            text-align: justify;
            font-size: 1.1rem;
        }
        .highlight {
            background-color: #fff9c4;
            padding: 15px;
            border-left: 4px solid #ffb300;
            margin: 20px 0;
            border-radius: 0 8px 8px 0;
        }
        .link-list {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 15px;
            margin: 25px 0;
        }
        .link-item {
            background: #f1f8ff;
            padding: 15px;
            border-radius: 8px;
            text-align: center;
            transition: transform 0.3s ease, box-shadow 0.3s ease;
        }
        .link-item:hover {
            transform: translateY(-5px);
            box-shadow: 0 8px 16px rgba(0,0,0,0.1);
        }
        .feature-box {
            background: linear-gradient(145deg, #e3f2fd, #bbdefb);
            padding: 25px;
            border-radius: 10px;
            margin: 30px 0;
            text-align: center;
        }
        .feature-box h3 {
            color: #1565c0;
        }
        form {
            display: grid;
            gap: 15px;
            max-width: 600px;
            margin: 20px auto;
        }
        input, textarea, select {
            padding: 12px;
            border: 2px solid #c5cae9;
            border-radius: 6px;
            font-size: 1rem;
            transition: border-color 0.3s ease;
        }
        input:focus, textarea:focus, select:focus {
            outline: none;
            border-color: #3949ab;
        }
        button {
            background: linear-gradient(to right, #1e88e5, #0d47a1);
            color: white;
            border: none;
            padding: 14px;
            border-radius: 6px;
            font-size: 1.1rem;
            cursor: pointer;
            transition: background 0.3s ease, transform 0.2s ease;
        }
        button:hover {
            background: linear-gradient(to right, #1565c0, #0a3d91);
            transform: scale(1.03);
        }
        .rating {
            display: flex;
            justify-content: center;
            gap: 10px;
            margin: 15px 0;
        }
        .rating i {
            color: #ffc107;
            font-size: 1.8rem;
            cursor: pointer;
            transition: color 0.3s ease, transform 0.2s ease;
        }
        .rating i:hover {
            color: #ff9800;
            transform: scale(1.2);
        }
        footer {
            background-color: #1a237e;
            color: white;
            padding: 40px 20px;
            border-top: 5px solid #ff9800;
            margin-top: 40px;
            border-radius: 12px 12px 0 0;
        }
        .footer-content {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 30px;
            margin-bottom: 30px;
        }
        .footer-section h4 {
            color: #ffcc80;
            margin-bottom: 15px;
        }
        friend-link {
            display: block;
            background-color: rgba(255, 255, 255, 0.1);
            padding: 12px;
            margin: 10px 0;
            border-radius: 6px;
            transition: background-color 0.3s ease;
        }
        friend-link:hover {
            background-color: rgba(255, 255, 255, 0.2);
        }
        .copyright {
            text-align: center;
            padding-top: 20px;
            border-top: 1px solid #3949ab;
            font-size: 0.9rem;
            color: #c5cae9;
        }
        @media (max-width: 768px) {
            .header-container {
                flex-direction: column;
                align-items: flex-start;
            }
            .nav-links {
                display: none;
                flex-direction: column;
                width: 100%;
                margin-top: 20px;
                background-color: #2a5298;
                padding: 20px;
                border-radius: 8px;
            }
            .nav-links.active {
                display: flex;
            }
            .hamburger {
                display: block;
                position: absolute;
                top: 25px;
                right: 20px;
            }
            h1 {
                font-size: 2.2rem;
            }
            h2 {
                font-size: 1.8rem;
            }
            article {
                padding: 20px;
            }
            .link-list {
                grid-template-columns: 1fr;
            }
        }