* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
        }
        body {
            background-color: #f8f9fa;
            color: #333;
            line-height: 1.7;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 15px;
        }
        a {
            text-decoration: none;
            color: #2c5aa0;
            transition: color 0.3s ease;
        }
        a:hover {
            color: #e63946;
        }
        .container {
            display: grid;
            grid-template-columns: 1fr;
            gap: 2rem;
        }
        header {
            background: linear-gradient(135deg, #1e3c72 0%, #2a5298 100%);
            color: white;
            padding: 1.5rem 0;
            border-radius: 0 0 12px 12px;
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
            margin-top: 10px;
        }
        .header-container {
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
        }
        .my-logo {
            font-size: 2.2rem;
            font-weight: 800;
            color: #fff;
            display: flex;
            align-items: center;
        }
        .my-logo i {
            color: #4cc9f0;
            margin-right: 10px;
        }
        .my-logo:hover {
            color: #4cc9f0;
        }
        nav {
            display: flex;
            align-items: center;
        }
        .nav-links {
            display: flex;
            list-style: none;
            gap: 1.8rem;
        }
        .nav-links a {
            color: #e9ecef;
            font-weight: 600;
            padding: 8px 12px;
            border-radius: 6px;
        }
        .nav-links a:hover {
            background-color: rgba(255, 255, 255, 0.15);
            color: white;
        }
        .hamburger {
            display: none;
            font-size: 1.8rem;
            background: none;
            border: none;
            color: white;
            cursor: pointer;
        }
        .breadcrumb {
            padding: 1rem 0;
            font-size: 0.9rem;
            color: #6c757d;
        }
        .breadcrumb a {
            color: #6c757d;
        }
        .breadcrumb a:hover {
            color: #2c5aa0;
        }
        .breadcrumb span {
            margin: 0 8px;
        }
        main {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 2.5rem;
        }
        @media (max-width: 992px) {
            main {
                grid-template-columns: 1fr;
            }
        }
        .article-content {
            background-color: white;
            padding: 2.5rem;
            border-radius: 12px;
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
        }
        .article-content h1 {
            font-size: 2.8rem;
            color: #1e3c72;
            margin-bottom: 1.5rem;
            line-height: 1.2;
            border-left: 6px solid #e63946;
            padding-left: 20px;
        }
        .article-content h2 {
            font-size: 2rem;
            color: #2a5298;
            margin: 2.5rem 0 1.2rem 0;
            padding-bottom: 8px;
            border-bottom: 2px solid #e9ecef;
        }
        .article-content h3 {
            font-size: 1.6rem;
            color: #3a6bc5;
            margin: 2rem 0 1rem 0;
        }
        .article-content h4 {
            font-size: 1.3rem;
            color: #555;
            margin: 1.5rem 0 0.8rem 0;
        }
        .article-content p {
            margin-bottom: 1.5rem;
            text-align: justify;
            font-size: 1.1rem;
        }
        .article-content p.lead {
            font-size: 1.3rem;
            font-weight: 500;
            color: #444;
            background-color: #f1faee;
            padding: 1.2rem;
            border-radius: 8px;
            border-left: 4px solid #4cc9f0;
        }
        .article-content strong {
            color: #1e3c72;
            font-weight: 700;
        }
        .article-content em {
            color: #e63946;
            font-style: italic;
        }
        .featured-img {
            width: 100%;
            max-height: 500px;
            object-fit: cover;
            border-radius: 10px;
            margin: 2rem 0;
            box-shadow: 0 8px 20px rgba(0, 0, 0, 0.1);
            transition: transform 0.5s ease;
        }
        .featured-img:hover {
            transform: scale(1.01);
        }
        .interactive-box {
            background: linear-gradient(to right, #f8f9fa, #e9ecef);
            border-radius: 10px;
            padding: 2rem;
            margin: 2.5rem 0;
            border-left: 6px solid #2a5298;
        }
        .interactive-box h3 {
            margin-top: 0;
            color: #1e3c72;
        }
        form {
            display: flex;
            flex-direction: column;
            gap: 1rem;
        }
        input, textarea, select {
            padding: 12px 15px;
            border: 1px solid #ced4da;
            border-radius: 6px;
            font-size: 1rem;
            transition: border 0.3s ease;
        }
        input:focus, textarea:focus, select:focus {
            outline: none;
            border-color: #2a5298;
            box-shadow: 0 0 0 3px rgba(42, 82, 152, 0.2);
        }
        button {
            background: linear-gradient(to right, #2a5298, #1e3c72);
            color: white;
            border: none;
            padding: 14px 25px;
            border-radius: 6px;
            font-size: 1.1rem;
            font-weight: 600;
            cursor: pointer;
            transition: all 0.3s ease;
        }
        button:hover {
            background: linear-gradient(to right, #e63946, #d90429);
            transform: translateY(-2px);
            box-shadow: 0 6px 12px rgba(0, 0, 0, 0.15);
        }
        .rating {
            display: flex;
            gap: 10px;
            align-items: center;
            flex-wrap: wrap;
        }
        .rating i {
            color: #ffd700;
            font-size: 1.8rem;
            cursor: pointer;
            transition: color 0.2s ease;
        }
        .rating i:hover {
            color: #ffaa00;
        }
        .update-time {
            font-size: 0.9rem;
            color: #6c757d;
            text-align: right;
            margin-top: 2rem;
            padding-top: 1rem;
            border-top: 1px dashed #dee2e6;
        }
        aside {
            background-color: white;
            padding: 1.8rem;
            border-radius: 12px;
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
            align-self: start;
        }
        aside h3 {
            color: #1e3c72;
            margin-bottom: 1.5rem;
            padding-bottom: 10px;
            border-bottom: 2px solid #e9ecef;
        }
        .related-links {
            list-style: none;
        }
        .related-links li {
            margin-bottom: 1rem;
            padding-bottom: 1rem;
            border-bottom: 1px solid #f1f1f1;
        }
        .related-links li:last-child {
            border-bottom: none;
        }
        .related-links a {
            display: block;
            padding: 10px 15px;
            background-color: #f8f9fa;
            border-radius: 6px;
            transition: all 0.3s ease;
        }
        .related-links a:hover {
            background-color: #e9ecef;
            transform: translateX(8px);
        }
        .related-links i {
            margin-right: 10px;
            color: #2a5298;
        }
        footer {
            background-color: #1a1a2e;
            color: #e9ecef;
            padding: 3rem 2rem;
            border-radius: 12px 12px 0 0;
            margin-top: 3rem;
        }
        .footer-container {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 2.5rem;
        }
        .footer-logo {
            font-size: 2rem;
            font-weight: 800;
            color: white;
            margin-bottom: 1rem;
        }
        .footer-links h4 {
            color: #4cc9f0;
            margin-bottom: 1.5rem;
            font-size: 1.3rem;
        }
        .footer-links ul {
            list-style: none;
        }
        .footer-links li {
            margin-bottom: 0.8rem;
        }
        .footer-links a {
            color: #adb5bd;
        }
        .footer-links a:hover {
            color: #4cc9f0;
            padding-left: 5px;
        }
        friend-link {
            display: block;
            background-color: #2a5298;
            color: white;
            padding: 12px 20px;
            border-radius: 6px;
            margin: 10px 0;
            text-align: center;
            font-weight: 600;
            transition: background-color 0.3s ease;
        }
        friend-link:hover {
            background-color: #e63946;
        }
        .copyright {
            text-align: center;
            padding-top: 2rem;
            margin-top: 2rem;
            border-top: 1px solid #343a40;
            color: #adb5bd;
            font-size: 0.9rem;
        }
        @media (max-width: 768px) {
            .header-container {
                flex-direction: column;
                align-items: flex-start;
            }
            .nav-links {
                display: none;
                flex-direction: column;
                width: 100%;
                margin-top: 1.5rem;
            }
            .nav-links.active {
                display: flex;
            }
            .hamburger {
                display: block;
                position: absolute;
                top: 1.5rem;
                right: 1.5rem;
            }
            .article-content h1 {
                font-size: 2.2rem;
            }
            .article-content h2 {
                font-size: 1.8rem;
            }
            .article-content {
                padding: 1.8rem;
            }
        }