* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            line-height: 1.6;
            color: #333;
            background: linear-gradient(135deg, #1e3c72 0%, #2a5298 100%);
            min-height: 100vh;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        header {
            background: rgba(0, 0, 0, 0.9);
            padding: 1rem 0;
            position: sticky;
            top: 0;
            z-index: 1000;
            backdrop-filter: blur(10px);
        }
        .header-content {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .my-logo {
            font-size: 2rem;
            font-weight: bold;
            color: #fff;
            text-decoration: none;
            display: flex;
            align-items: center;
            gap: 10px;
            transition: all 0.3s ease;
        }
        .my-logo:hover {
            color: #00b4d8;
            transform: scale(1.05);
        }
        .my-logo i {
            color: #00b4d8;
        }
        .main-nav {
            display: flex;
            gap: 2rem;
        }
        .nav-links {
            display: flex;
            list-style: none;
            gap: 1.5rem;
        }
        .nav-links a {
            color: white;
            text-decoration: none;
            font-weight: 500;
            padding: 0.5rem 1rem;
            border-radius: 4px;
            transition: all 0.3s ease;
        }
        .nav-links a:hover {
            background: #00b4d8;
            transform: translateY(-2px);
        }
        .hamburger {
            display: none;
            flex-direction: column;
            cursor: pointer;
            gap: 4px;
        }
        .hamburger span {
            width: 25px;
            height: 3px;
            background: white;
            transition: 0.3s;
        }
        #nav-toggle {
            display: none;
        }
        .breadcrumb {
            background: rgba(255, 255, 255, 0.1);
            padding: 1rem;
            margin: 1rem 0;
            border-radius: 8px;
            color: white;
        }
        .breadcrumb a {
            color: #00b4d8;
            text-decoration: none;
        }
        main {
            background: white;
            border-radius: 15px;
            margin: 2rem auto;
            padding: 2rem;
            box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
        }
        article {
            max-width: 900px;
            margin: 0 auto;
        }
        h1 {
            color: #1e3c72;
            font-size: 2.5rem;
            margin-bottom: 1.5rem;
            border-bottom: 3px solid #00b4d8;
            padding-bottom: 0.5rem;
        }
        h2 {
            color: #2a5298;
            font-size: 2rem;
            margin: 2rem 0 1rem;
            padding-left: 10px;
            border-left: 4px solid #00b4d8;
        }
        h3 {
            color: #3a6bc2;
            font-size: 1.5rem;
            margin: 1.5rem 0 0.8rem;
        }
        h4 {
            color: #4a7bd6;
            font-size: 1.2rem;
            margin: 1rem 0 0.5rem;
        }
        p {
            margin-bottom: 1.2rem;
            text-align: justify;
            font-size: 1.05rem;
        }
        .highlight {
            background: linear-gradient(120deg, #a1c4fd 0%, #c2e9fb 100%);
            padding: 1.5rem;
            border-radius: 10px;
            margin: 1.5rem 0;
            border-left: 5px solid #1e3c72;
        }
        .feature-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 2rem;
            margin: 3rem 0;
        }
        .feature-card {
            background: #f8f9fa;
            padding: 2rem;
            border-radius: 10px;
            transition: all 0.3s ease;
            border: 2px solid transparent;
        }
        .feature-card:hover {
            transform: translateY(-10px);
            border-color: #00b4d8;
            box-shadow: 0 10px 20px rgba(0, 180, 216, 0.2);
        }
        .feature-card h3 {
            color: #1e3c72;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        form {
            background: #f8f9fa;
            padding: 2rem;
            border-radius: 10px;
            margin: 2rem 0;
        }
        .form-group {
            margin-bottom: 1.5rem;
        }
        label {
            display: block;
            margin-bottom: 0.5rem;
            font-weight: 600;
            color: #1e3c72;
        }
        input, textarea, select {
            width: 100%;
            padding: 0.8rem;
            border: 2px solid #ddd;
            border-radius: 5px;
            font-size: 1rem;
            transition: border-color 0.3s ease;
        }
        input:focus, textarea:focus, select:focus {
            outline: none;
            border-color: #00b4d8;
        }
        button {
            background: linear-gradient(135deg, #1e3c72 0%, #2a5298 100%);
            color: white;
            padding: 1rem 2rem;
            border: none;
            border-radius: 5px;
            cursor: pointer;
            font-size: 1rem;
            font-weight: 600;
            transition: all 0.3s ease;
        }
        button:hover {
            background: linear-gradient(135deg, #00b4d8 0%, #0077b6 100%);
            transform: scale(1.05);
        }
        .article-image {
            width: 100%;
            max-width: 800px;
            height: auto;
            border-radius: 10px;
            margin: 2rem auto;
            display: block;
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
            transition: transform 0.3s ease;
        }
        .article-image:hover {
            transform: scale(1.02);
        }
        .internal-links {
            background: #e3f2fd;
            padding: 1.5rem;
            border-radius: 10px;
            margin: 2rem 0;
        }
        .internal-links ul {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 1rem;
            list-style: none;
        }
        .internal-links a {
            color: #1e3c72;
            text-decoration: none;
            padding: 0.5rem;
            display: block;
            border-radius: 5px;
            transition: all 0.3s ease;
        }
        .internal-links a:hover {
            background: #bbdefb;
            padding-left: 1rem;
        }
        footer {
            background: rgba(0, 0, 0, 0.9);
            color: white;
            padding: 3rem 0 1rem;
            margin-top: 3rem;
        }
        .footer-content {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 2rem;
            margin-bottom: 2rem;
        }
        .friend-links {
            display: flex;
            flex-wrap: wrap;
            gap: 1rem;
            margin: 1rem 0;
        }
        .friend-links a {
            color: #00b4d8;
            text-decoration: none;
            padding: 0.5rem 1rem;
            border: 1px solid #00b4d8;
            border-radius: 5px;
            transition: all 0.3s ease;
        }
        .friend-links a:hover {
            background: #00b4d8;
            color: black;
        }
        .copyright {
            text-align: center;
            padding-top: 2rem;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            color: #aaa;
            font-size: 0.9rem;
        }
        .rating {
            display: flex;
            gap: 5px;
            margin: 1rem 0;
        }
        .rating input {
            display: none;
        }
        .rating label {
            cursor: pointer;
            font-size: 1.5rem;
            color: #ddd;
        }
        .rating input:checked ~ label,
        .rating label:hover,
        .rating label:hover ~ label {
            color: #ffd700;
        }
        @media (max-width: 768px) {
            .hamburger {
                display: flex;
            }
            .nav-links {
                position: fixed;
                top: 70px;
                left: 0;
                right: 0;
                background: rgba(0, 0, 0, 0.95);
                flex-direction: column;
                padding: 2rem;
                transform: translateY(-100%);
                opacity: 0;
                transition: all 0.3s ease;
                z-index: 999;
            }
            #nav-toggle:checked ~ .nav-links {
                transform: translateY(0);
                opacity: 1;
            }
            h1 {
                font-size: 2rem;
            }
            h2 {
                font-size: 1.5rem;
            }
            .header-content {
                flex-wrap: wrap;
            }
            .feature-grid {
                grid-template-columns: 1fr;
            }
        }
        @keyframes fadeIn {
            from {
                opacity: 0;
                transform: translateY(20px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }
        article > * {
            animation: fadeIn 0.6s ease-out;
        }
        .last-updated {
            background: #e8f4fc;
            padding: 1rem;
            border-radius: 8px;
            margin: 2rem 0;
            text-align: center;
            font-style: italic;
            color: #1e3c72;
            border-left: 4px solid #00b4d8;
        }
        .emoji {
            font-size: 1.2em;
            margin-right: 5px;
        }
        .search-container {
            max-width: 500px;
            margin: 2rem auto;
        }
        .search-box {
            display: flex;
            gap: 10px;
        }
        .search-box input {
            flex: 1;
        }