* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            background-color: #f8f9fa;
            color: #333;
            line-height: 1.6;
            display: flex;
            flex-direction: column;
            min-height: 100vh;
        }
        a {
            color: #2ecc71;
            text-decoration: none;
            transition: color 0.3s ease;
        }
        a:hover {
            color: #27ae60;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        .btn {
            display: inline-block;
            background: linear-gradient(135deg, #2ecc71, #1abc9c);
            color: white;
            padding: 12px 28px;
            border-radius: 50px;
            font-weight: 600;
            border: none;
            cursor: pointer;
            transition: all 0.3s ease;
            box-shadow: 0 4px 12px rgba(46, 204, 113, 0.3);
        }
        .btn:hover {
            transform: translateY(-3px);
            box-shadow: 0 6px 18px rgba(46, 204, 113, 0.4);
            background: linear-gradient(135deg, #27ae60, #16a085);
        }
        header {
            background: white;
            box-shadow: 0 2px 15px rgba(0,0,0,0.08);
            position: sticky;
            top: 0;
            z-index: 1000;
        }
        .header-container {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 18px 0;
        }
        .logo a.my-logo {
            font-size: 2.2rem;
            font-weight: 800;
            background: linear-gradient(90deg, #2ecc71, #3498db);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            letter-spacing: -0.5px;
        }
        nav.desktop-nav ul {
            display: flex;
            list-style: none;
            gap: 30px;
        }
        nav.desktop-nav a {
            color: #555;
            font-weight: 600;
            font-size: 1.05rem;
            position: relative;
        }
        nav.desktop-nav a:after {
            content: '';
            position: absolute;
            bottom: -5px;
            left: 0;
            width: 0;
            height: 3px;
            background: #2ecc71;
            transition: width 0.3s ease;
        }
        nav.desktop-nav a:hover {
            color: #2ecc71;
        }
        nav.desktop-nav a:hover:after {
            width: 100%;
        }
        .hamburger {
            display: none;
            font-size: 1.8rem;
            cursor: pointer;
            color: #2ecc71;
        }
        .mobile-nav {
            display: none;
            position: absolute;
            top: 100%;
            left: 0;
            width: 100%;
            background: white;
            box-shadow: 0 10px 20px rgba(0,0,0,0.1);
            flex-direction: column;
            padding: 20px;
            z-index: 999;
        }
        .mobile-nav.active {
            display: flex;
        }
        .mobile-nav a {
            padding: 15px;
            border-bottom: 1px solid #eee;
            font-weight: 600;
            color: #555;
        }
        .mobile-nav a:hover {
            color: #2ecc71;
            background: #f9f9f9;
        }
        .breadcrumb {
            padding: 15px 0;
            background: #f1f8e9;
            font-size: 0.9rem;
        }
        .breadcrumb a {
            color: #666;
        }
        .breadcrumb a:hover {
            color: #2ecc71;
        }
        .breadcrumb span {
            color: #999;
            margin: 0 8px;
        }
        main {
            flex: 1;
            padding: 40px 0;
        }
        .article-header {
            text-align: center;
            margin-bottom: 50px;
            padding: 30px;
            background: linear-gradient(135deg, rgba(46, 204, 113, 0.1), rgba(52, 152, 219, 0.1));
            border-radius: 20px;
        }
        h1 {
            font-size: 3rem;
            color: #2c3e50;
            margin-bottom: 20px;
            line-height: 1.2;
        }
        .subtitle {
            font-size: 1.3rem;
            color: #7f8c8d;
            max-width: 800px;
            margin: 0 auto 30px;
        }
        .meta-info {
            display: flex;
            justify-content: center;
            gap: 20px;
            color: #95a5a6;
            font-size: 0.95rem;
        }
        .meta-info i {
            margin-right: 5px;
        }
        .content-grid {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 40px;
        }
        @media (max-width: 992px) {
            .content-grid {
                grid-template-columns: 1fr;
            }
        }
        .article-body h2 {
            font-size: 2.2rem;
            color: #2c3e50;
            margin: 50px 0 20px;
            padding-bottom: 10px;
            border-bottom: 3px solid #2ecc71;
        }
        .article-body h3 {
            font-size: 1.7rem;
            color: #34495e;
            margin: 40px 0 15px;
        }
        .article-body h4 {
            font-size: 1.3rem;
            color: #2c3e50;
            margin: 30px 0 10px;
        }
        .article-body p {
            margin-bottom: 25px;
            font-size: 1.1rem;
            color: #444;
            text-align: justify;
        }
        .article-body strong {
            color: #2c3e50;
            font-weight: 700;
        }
        .article-body em {
            background-color: #fffacd;
            font-style: italic;
            padding: 0 3px;
        }
        .highlight-box {
            background: #e8f6f3;
            border-left: 5px solid #2ecc71;
            padding: 25px;
            margin: 30px 0;
            border-radius: 0 10px 10px 0;
        }
        .inline-link {
            font-weight: 600;
            border-bottom: 2px dotted #2ecc71;
        }
        .feature-img {
            margin: 40px auto;
            border-radius: 15px;
            overflow: hidden;
            box-shadow: 0 10px 30px rgba(0,0,0,0.15);
        }
        .sidebar-widget {
            background: white;
            padding: 25px;
            border-radius: 15px;
            box-shadow: 0 5px 15px rgba(0,0,0,0.05);
            margin-bottom: 30px;
        }
        .sidebar-widget h3 {
            color: #2c3e50;
            margin-bottom: 20px;
            padding-bottom: 10px;
            border-bottom: 2px solid #eee;
        }
        .search-form {
            display: flex;
        }
        .search-form input {
            flex: 1;
            padding: 14px;
            border: 2px solid #ddd;
            border-radius: 50px 0 0 50px;
            font-size: 1rem;
            outline: none;
            transition: border 0.3s;
        }
        .search-form input:focus {
            border-color: #2ecc71;
        }
        .search-form button {
            background: #2ecc71;
            color: white;
            border: none;
            padding: 0 25px;
            border-radius: 0 50px 50px 0;
            cursor: pointer;
            transition: background 0.3s;
        }
        .search-form button:hover {
            background: #27ae60;
        }
        .related-links ul {
            list-style: none;
        }
        .related-links li {
            margin-bottom: 12px;
            padding-bottom: 12px;
            border-bottom: 1px dashed #eee;
        }
        .related-links a {
            color: #555;
            display: flex;
            align-items: center;
        }
        .related-links a:before {
            content: '▸';
            color: #2ecc71;
            margin-right: 10px;
            font-weight: bold;
        }
        .related-links a:hover {
            color: #2ecc71;
            padding-left: 5px;
            transition: all 0.2s;
        }
        .rating-widget, .comment-widget {
            background: white;
            padding: 30px;
            border-radius: 15px;
            box-shadow: 0 5px 15px rgba(0,0,0,0.05);
            margin: 40px 0;
        }
        .rating-widget h3, .comment-widget h3 {
            color: #2c3e50;
            margin-bottom: 20px;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .stars {
            display: flex;
            gap: 8px;
            margin-bottom: 20px;
        }
        .star {
            font-size: 2rem;
            color: #ddd;
            cursor: pointer;
            transition: color 0.2s;
        }
        .star:hover,
        .star.active {
            color: #f39c12;
        }
        .comment-form textarea {
            width: 100%;
            padding: 18px;
            border: 2px solid #ddd;
            border-radius: 10px;
            font-size: 1rem;
            margin-bottom: 15px;
            resize: vertical;
            min-height: 150px;
            outline: none;
            transition: border 0.3s;
        }
        .comment-form textarea:focus {
            border-color: #2ecc71;
        }
        .comment-form input[type="text"],
        .comment-form input[type="email"] {
            width: 100%;
            padding: 14px;
            border: 2px solid #ddd;
            border-radius: 10px;
            margin-bottom: 15px;
            outline: none;
            transition: border 0.3s;
        }
        .comment-form input:focus {
            border-color: #2ecc71;
        }
        footer {
            background: #2c3e50;
            color: #ecf0f1;
            padding: 50px 0 20px;
            margin-top: 60px;
        }
        .footer-container {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 40px;
        }
        @media (max-width: 768px) {
            .footer-container {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (max-width: 480px) {
            .footer-container {
                grid-template-columns: 1fr;
            }
        }
        .footer-col h4 {
            color: #2ecc71;
            margin-bottom: 25px;
            font-size: 1.3rem;
        }
        .footer-col ul {
            list-style: none;
        }
        .footer-col ul li {
            margin-bottom: 12px;
        }
        .footer-col a {
            color: #bdc3c7;
        }
        .footer-col a:hover {
            color: #2ecc71;
            padding-left: 5px;
            transition: all 0.2s;
        }
        friend-link {
            display: block;
            background: #34495e;
            padding: 15px;
            border-radius: 8px;
            margin-top: 10px;
        }
        .copyright {
            text-align: center;
            padding-top: 30px;
            margin-top: 30px;
            border-top: 1px solid #34495e;
            color: #95a5a6;
            font-size: 0.9rem;
        }
        @media (max-width: 768px) {
            h1 {
                font-size: 2.3rem;
            }
            .subtitle {
                font-size: 1.1rem;
            }
            .desktop-nav {
                display: none;
            }
            .hamburger {
                display: block;
            }
            .article-body h2 {
                font-size: 1.8rem;
            }
            .article-body h3 {
                font-size: 1.5rem;
            }
            .header-container, .container {
                padding: 0 15px;
            }
        }