* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
        }
        body {
            background-color: #f5f7fa;
            color: #333;
            line-height: 1.6;
            overflow-x: hidden;
        }
        a {
            text-decoration: none;
            color: #2c5aa0;
            transition: color 0.3s ease;
        }
        a:hover {
            color: #1a3a6e;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        .header {
            background: linear-gradient(135deg, #1a3a6e 0%, #2c5aa0 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-content {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .logo a {
            font-size: 2rem;
            font-weight: 800;
            color: white;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .logo a:hover {
            color: #ffcc00;
        }
        .my-logo {
            font-style: italic;
            text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
        }
        .nav-desktop {
            display: flex;
            gap: 2rem;
        }
        .nav-desktop a {
            color: white;
            font-weight: 600;
            padding: 0.5rem 1rem;
            border-radius: 4px;
        }
        .nav-desktop a:hover {
            background-color: rgba(255, 255, 255, 0.2);
        }
        .hamburger {
            display: none;
            font-size: 1.8rem;
            cursor: pointer;
            background: none;
            border: none;
            color: white;
        }
        .nav-mobile {
            display: none;
            flex-direction: column;
            background-color: #1a3a6e;
            position: absolute;
            top: 100%;
            left: 0;
            width: 100%;
            padding: 1rem;
            box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
        }
        .nav-mobile.active {
            display: flex;
        }
        .nav-mobile a {
            color: white;
            padding: 0.8rem;
            border-bottom: 1px solid rgba(255, 255, 255, 0.1);
        }
        .nav-mobile a:hover {
            background-color: rgba(255, 255, 255, 0.1);
        }
        .breadcrumb {
            background-color: #e9eff7;
            padding: 0.8rem 0;
            font-size: 0.9rem;
        }
        .breadcrumb a {
            color: #555;
        }
        .breadcrumb a:hover {
            color: #2c5aa0;
        }
        .main-content {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 2rem;
            padding: 2rem 0;
        }
        @media (max-width: 992px) {
            .main-content {
                grid-template-columns: 1fr;
            }
        }
        .article {
            background: white;
            border-radius: 12px;
            padding: 2.5rem;
            box-shadow: 0 6px 15px rgba(0, 0, 0, 0.05);
        }
        .sidebar {
            background: white;
            border-radius: 12px;
            padding: 1.5rem;
            box-shadow: 0 6px 15px rgba(0, 0, 0, 0.05);
            align-self: start;
        }
        .sidebar h3 {
            color: #1a3a6e;
            margin-bottom: 1rem;
            padding-bottom: 0.5rem;
            border-bottom: 2px solid #ffcc00;
        }
        h1 {
            font-size: 2.8rem;
            color: #1a3a6e;
            margin-bottom: 1.5rem;
            line-height: 1.2;
        }
        h2 {
            font-size: 2rem;
            color: #2c5aa0;
            margin-top: 2.5rem;
            margin-bottom: 1rem;
            padding-bottom: 0.5rem;
            border-bottom: 2px solid #e9eff7;
        }
        h3 {
            font-size: 1.6rem;
            color: #333;
            margin-top: 2rem;
            margin-bottom: 0.8rem;
        }
        h4 {
            font-size: 1.3rem;
            color: #555;
            margin-top: 1.5rem;
            margin-bottom: 0.5rem;
        }
        p {
            margin-bottom: 1.2rem;
            text-align: justify;
        }
        .highlight {
            background-color: #fff9e6;
            border-left: 4px solid #ffcc00;
            padding: 1.2rem;
            margin: 1.5rem 0;
            border-radius: 0 8px 8px 0;
        }
        .emoji {
            font-size: 1.2rem;
            margin-right: 5px;
        }
        strong {
            color: #1a3a6e;
            font-weight: 700;
        }
        .form-group {
            margin-bottom: 1.5rem;
        }
        label {
            display: block;
            margin-bottom: 0.5rem;
            font-weight: 600;
            color: #444;
        }
        input, textarea, select {
            width: 100%;
            padding: 0.8rem;
            border: 1px solid #ccc;
            border-radius: 6px;
            font-size: 1rem;
            transition: border 0.3s;
        }
        input:focus, textarea:focus, select:focus {
            outline: none;
            border-color: #2c5aa0;
            box-shadow: 0 0 0 3px rgba(44, 90, 160, 0.2);
        }
        button {
            background: linear-gradient(to right, #2c5aa0, #1a3a6e);
            color: white;
            border: none;
            padding: 0.8rem 1.5rem;
            border-radius: 6px;
            font-size: 1rem;
            font-weight: 600;
            cursor: pointer;
            transition: transform 0.3s, box-shadow 0.3s;
        }
        button:hover {
            transform: translateY(-2px);
            box-shadow: 0 4px 12px rgba(26, 58, 110, 0.3);
        }
        .rating {
            display: flex;
            gap: 0.5rem;
            margin: 1rem 0;
        }
        .star {
            font-size: 1.5rem;
            color: #ddd;
            cursor: pointer;
            transition: color 0.3s;
        }
        .star:hover,
        .star.active {
            color: #ffcc00;
        }
        .comment {
            background: #f9f9f9;
            padding: 1.2rem;
            border-radius: 8px;
            margin-bottom: 1rem;
            border-left: 3px solid #2c5aa0;
        }
        .comment-author {
            font-weight: 700;
            color: #1a3a6e;
        }
        .comment-date {
            font-size: 0.9rem;
            color: #777;
        }
        .footer {
            background: #1a3a6e;
            color: white;
            padding: 3rem 0 1.5rem;
            margin-top: 3rem;
        }
        .footer-content {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 2rem;
        }
        .footer-section h3 {
            color: #ffcc00;
            margin-bottom: 1.2rem;
        }
        .friend-links {
            list-style: none;
        }
        .friend-links li {
            margin-bottom: 0.8rem;
        }
        .friend-links a {
            color: #ccc;
        }
        .friend-links a:hover {
            color: #ffcc00;
        }
        .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: #aaa;
        }
        @media (max-width: 768px) {
            .header-content {
                flex-wrap: wrap;
            }
            .nav-desktop {
                display: none;
            }
            .hamburger {
                display: block;
            }
            h1 {
                font-size: 2.2rem;
            }
            h2 {
                font-size: 1.7rem;
            }
            h3 {
                font-size: 1.4rem;
            }
            .article {
                padding: 1.5rem;
            }
        }
        .text-center {
            text-align: center;
        }
        .mb-3 {
            margin-bottom: 3rem;
        }
        .mt-3 {
            margin-top: 3rem;
        }
        .last-updated {
            font-style: italic;
            color: #777;
            font-size: 0.9rem;
            margin-top: 2rem;
            padding-top: 1rem;
            border-top: 1px dashed #ddd;
        }