* {
            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: 1.7;
            overflow-x: hidden;
        }
        a {
            color: #3498db;
            text-decoration: none;
            transition: color 0.3s ease;
        }
        a:hover {
            color: #e74c3c;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        .flex {
            display: flex;
            flex-wrap: wrap;
        }
        .grid {
            display: grid;
            gap: 20px;
        }
        .text-center { text-align: center; }
        .mt-1 { margin-top: 1rem; }
        .mt-2 { margin-top: 2rem; }
        .mb-1 { margin-bottom: 1rem; }
        .mb-2 { margin-bottom: 2rem; }
        .p-1 { padding: 1rem; }
        .p-2 { padding: 2rem; }
        .bg-white { background-color: #fff; }
        .rounded { border-radius: 8px; }
        .shadow { box-shadow: 0 5px 15px rgba(0,0,0,0.05); }
        .site-header {
            background: linear-gradient(135deg, #2c3e50 0%, #4a6491 100%);
            color: white;
            padding: 1rem 0;
            position: sticky;
            top: 0;
            z-index: 1000;
        }
        .header-content {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .my-logo {
            font-size: 1.8rem;
            font-weight: 800;
            color: #f1c40f;
            text-decoration: none;
        }
        .my-logo:hover {
            color: #fff;
            transform: scale(1.05);
            display: inline-block;
        }
        .breadcrumb {
            background: #ecf0f1;
            padding: 10px 20px;
            font-size: 0.9rem;
            margin-bottom: 20px;
        }
        .breadcrumb a {
            color: #7f8c8d;
        }
        .breadcrumb a:hover {
            color: #3498db;
        }
        .breadcrumb i {
            margin: 0 8px;
            color: #95a5a6;
        }
        .main-nav ul {
            display: flex;
            list-style: none;
            gap: 25px;
        }
        .main-nav a {
            color: #ecf0f1;
            font-weight: 600;
            padding: 5px 0;
            position: relative;
        }
        .main-nav a:hover {
            color: #f1c40f;
        }
        .main-nav a::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 0;
            height: 2px;
            background: #f1c40f;
            transition: width 0.3s ease;
        }
        .main-nav a:hover::after {
            width: 100%;
        }
        .hamburger {
            display: none;
            font-size: 1.8rem;
            background: none;
            border: none;
            color: white;
            cursor: pointer;
        }
        @media (max-width: 768px) {
            .hamburger { display: block; }
            .main-nav {
                position: fixed;
                top: 70px;
                left: 0;
                width: 100%;
                background: #2c3e50;
                clip-path: polygon(0 0, 100% 0, 100% 0, 0 0);
                transition: clip-path 0.4s ease-in-out;
            }
            .main-nav.active {
                clip-path: polygon(0 0, 100% 0, 100% 100%, 0 100%);
            }
            .main-nav ul {
                flex-direction: column;
                padding: 20px;
                gap: 15px;
            }
        }
        .search-section {
            background: #fff;
            padding: 2rem;
            margin: 2rem auto;
            border-radius: 10px;
            box-shadow: 0 5px 20px rgba(0,0,0,0.08);
        }
        .search-form {
            display: flex;
            max-width: 600px;
            margin: 0 auto;
        }
        .search-input {
            flex-grow: 1;
            padding: 15px 20px;
            border: 2px solid #3498db;
            border-radius: 50px 0 0 50px;
            font-size: 1rem;
            outline: none;
        }
        .search-btn {
            background: #3498db;
            color: white;
            border: none;
            padding: 0 30px;
            border-radius: 0 50px 50px 0;
            cursor: pointer;
            font-weight: 600;
            transition: background 0.3s;
        }
        .search-btn:hover {
            background: #2980b9;
        }
        .main-content {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 30px;
            margin: 30px 0;
        }
        @media (max-width: 992px) {
            .main-content {
                grid-template-columns: 1fr;
            }
        }
        article {
            background: white;
            padding: 2.5rem;
            border-radius: 12px;
            box-shadow: 0 10px 30px rgba(0,0,0,0.05);
        }
        aside {
            background: white;
            padding: 1.5rem;
            border-radius: 12px;
            box-shadow: 0 5px 15px rgba(0,0,0,0.05);
            align-self: start;
            position: sticky;
            top: 100px;
        }
        h1 {
            font-size: 2.8rem;
            color: #2c3e50;
            margin-bottom: 1.5rem;
            line-height: 1.2;
            border-bottom: 3px solid #f1c40f;
            padding-bottom: 15px;
        }
        h2 {
            font-size: 2rem;
            color: #3498db;
            margin: 2.5rem 0 1.2rem;
            padding-left: 10px;
            border-left: 5px solid #2ecc71;
        }
        h3 {
            font-size: 1.6rem;
            color: #2c3e50;
            margin: 2rem 0 1rem;
        }
        h4 {
            font-size: 1.3rem;
            color: #7f8c8d;
            margin: 1.5rem 0 0.8rem;
        }
        p {
            margin-bottom: 1.5rem;
            text-align: justify;
            font-size: 1.1rem;
        }
        .lead {
            font-size: 1.3rem;
            color: #555;
            font-weight: 500;
            background: #f8f9fa;
            padding: 1.5rem;
            border-radius: 8px;
            border-left: 4px solid #3498db;
        }
        .highlight {
            background-color: #fffacd;
            padding: 2px 6px;
            border-radius: 3px;
            font-weight: 600;
        }
        .emoji {
            font-size: 1.2em;
            margin-right: 5px;
        }
        .featured-img {
            width: 100%;
            max-width: 800px;
            margin: 2rem auto;
            border-radius: 12px;
            overflow: hidden;
            box-shadow: 0 10px 25px rgba(0,0,0,0.1);
        }
        .caption {
            text-align: center;
            font-style: italic;
            color: #7f8c8d;
            margin-top: 10px;
            font-size: 0.95rem;
        }
        .internal-links {
            background: #e8f4fc;
            padding: 1.5rem;
            border-radius: 10px;
            margin: 2rem 0;
        }
        .internal-links h3 {
            color: #2980b9;
            margin-top: 0;
        }
        .internal-links ul {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
            gap: 10px;
            list-style: none;
        }
        .internal-links li {
            padding: 8px 0;
            border-bottom: 1px dashed #bdc3c7;
        }
        .internal-links a {
            color: #2c3e50;
            display: flex;
            align-items: center;
        }
        .internal-links a:hover {
            color: #e74c3c;
            padding-left: 5px;
        }
        .internal-links i {
            margin-right: 10px;
            color: #3498db;
        }
        .user-interaction {
            background: #fff;
            border-top: 3px solid #f1c40f;
            padding: 2rem;
            margin-top: 3rem;
            border-radius: 10px;
        }
        .rating-section, .comment-section {
            margin-bottom: 2.5rem;
        }
        .stars {
            display: flex;
            gap: 10px;
            margin: 15px 0;
        }
        .star {
            font-size: 2rem;
            color: #ddd;
            cursor: pointer;
            transition: color 0.2s, transform 0.2s;
        }
        .star:hover,
        .star.active {
            color: #f1c40f;
            transform: scale(1.1);
        }
        .rating-form, .comment-form {
            display: flex;
            flex-direction: column;
            gap: 15px;
            max-width: 600px;
        }
        .form-input, .form-textarea {
            padding: 15px;
            border: 1px solid #bdc3c7;
            border-radius: 8px;
            font-size: 1rem;
            transition: border 0.3s;
        }
        .form-input:focus, .form-textarea:focus {
            border-color: #3498db;
            outline: none;
        }
        .form-textarea {
            min-height: 150px;
            resize: vertical;
        }
        .form-btn {
            background: #2ecc71;
            color: white;
            border: none;
            padding: 15px 30px;
            border-radius: 50px;
            font-weight: bold;
            cursor: pointer;
            align-self: flex-start;
            transition: background 0.3s;
        }
        .form-btn:hover {
            background: #27ae60;
        }
        .site-footer {
            background: #2c3e50;
            color: #ecf0f1;
            padding: 3rem 0 1.5rem;
            margin-top: 4rem;
        }
        .footer-content {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 30px;
            margin-bottom: 2rem;
        }
        .footer-section h3 {
            color: #f1c40f;
            font-size: 1.3rem;
            margin-bottom: 1.5rem;
        }
        friend-link {
            display: block;
            margin-bottom: 10px;
            color: #bdc3c7;
        }
        friend-link a {
            color: #bdc3c7;
        }
        friend-link a:hover {
            color: #f1c40f;
        }
        .copyright {
            text-align: center;
            padding-top: 1.5rem;
            border-top: 1px solid #34495e;
            font-size: 0.9rem;
            color: #95a5a6;
        }
        @media (max-width: 768px) {
            h1 { font-size: 2.2rem; }
            h2 { font-size: 1.8rem; }
            h3 { font-size: 1.4rem; }
            article, .search-section, .user-interaction { padding: 1.5rem; }
            .main-nav ul { flex-direction: column; }
        }