* {
            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-color: #f5f5f5;
            max-width: 100vw;
            overflow-x: hidden;
        }
        a {
            color: #0066cc;
            text-decoration: none;
            transition: color 0.3s ease;
        }
        a:hover {
            color: #ff9900;
            text-decoration: underline;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        .text-center { text-align: center; }
        .bold { font-weight: bold; }
        .italic { font-style: italic; }
        .mt-1 { margin-top: 0.5rem; }
        .mt-2 { margin-top: 1rem; }
        .mt-3 { margin-top: 1.5rem; }
        .mb-1 { margin-bottom: 0.5rem; }
        .mb-2 { margin-bottom: 1rem; }
        .mb-3 { margin-bottom: 1.5rem; }
        .py-1 { padding-top: 0.5rem; padding-bottom: 0.5rem; }
        .py-2 { padding-top: 1rem; padding-bottom: 1rem; }
        .py-3 { padding-top: 1.5rem; padding-bottom: 1.5rem; }
        .site-header {
            background-color: #1a1a1a;
            color: #fff;
            padding: 1rem 0;
            position: sticky;
            top: 0;
            z-index: 1000;
        }
        .header-container {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .my-logo {
            font-size: 1.8rem;
            font-weight: bold;
            color: #ff9900;
            text-transform: uppercase;
            letter-spacing: 1px;
        }
        .my-logo:hover {
            color: #fff;
        }
        .nav-desktop {
            display: flex;
            gap: 2rem;
        }
        .nav-desktop a {
            color: #ddd;
            font-weight: 500;
        }
        .nav-desktop a:hover {
            color: #ff9900;
        }
        .hamburger {
            display: none;
            background: none;
            border: none;
            color: #fff;
            font-size: 1.5rem;
            cursor: pointer;
        }
        .nav-mobile {
            display: none;
            flex-direction: column;
            background-color: #2a2a2a;
            position: absolute;
            top: 100%;
            left: 0;
            width: 100%;
            padding: 1rem;
            box-shadow: 0 5px 10px rgba(0,0,0,0.3);
        }
        .nav-mobile.active {
            display: flex;
        }
        .nav-mobile a {
            color: #ddd;
            padding: 0.8rem 0;
            border-bottom: 1px solid #444;
        }
        .nav-mobile a:last-child {
            border-bottom: none;
        }
        .breadcrumb {
            background-color: #e9ecef;
            padding: 0.8rem 0;
            font-size: 0.9rem;
        }
        .breadcrumb a {
            color: #555;
        }
        .breadcrumb a:hover {
            color: #0066cc;
        }
        .breadcrumb span {
            color: #777;
            margin: 0 5px;
        }
        .main-content {
            background-color: #fff;
            padding: 2rem 0;
            min-height: 80vh;
        }
        .article-header {
            margin-bottom: 2rem;
            border-bottom: 2px solid #eee;
            padding-bottom: 1rem;
        }
        .article-header h1 {
            font-size: 2.5rem;
            color: #1a1a1a;
            margin-bottom: 0.5rem;
        }
        .article-meta {
            color: #666;
            font-size: 0.9rem;
            display: flex;
            flex-wrap: wrap;
            gap: 1rem;
            align-items: center;
        }
        .last-updated {
            background-color: #ffebcc;
            padding: 0.3rem 0.6rem;
            border-radius: 4px;
            font-weight: bold;
        }
        .content-section {
            margin-bottom: 3rem;
        }
        h2 {
            font-size: 2rem;
            color: #2c3e50;
            margin: 1.5rem 0 1rem;
            padding-bottom: 0.5rem;
            border-bottom: 1px solid #ddd;
        }
        h3 {
            font-size: 1.5rem;
            color: #34495e;
            margin: 1.2rem 0 0.8rem;
        }
        h4 {
            font-size: 1.2rem;
            color: #4a6572;
            margin: 1rem 0 0.6rem;
        }
        p {
            margin-bottom: 1rem;
            text-align: justify;
        }
        .highlight {
            background-color: #fffacd;
            padding: 1rem;
            border-left: 4px solid #ff9900;
            margin: 1.5rem 0;
        }
        .image-container {
            margin: 2rem auto;
            text-align: center;
            max-width: 800px;
        }
        .image-container img {
            border-radius: 8px;
            box-shadow: 0 4px 8px rgba(0,0,0,0.1);
        }
        .image-caption {
            font-size: 0.9rem;
            color: #666;
            margin-top: 0.5rem;
        }
        .search-box, .comment-form, .rating-form {
            background-color: #f9f9f9;
            padding: 1.5rem;
            border-radius: 8px;
            margin: 2rem 0;
            box-shadow: 0 2px 5px rgba(0,0,0,0.05);
        }
        .form-group {
            margin-bottom: 1rem;
        }
        label {
            display: block;
            margin-bottom: 0.5rem;
            font-weight: bold;
        }
        input, textarea, select {
            width: 100%;
            padding: 0.8rem;
            border: 1px solid #ccc;
            border-radius: 4px;
            font-size: 1rem;
            transition: border 0.3s;
        }
        input:focus, textarea:focus, select:focus {
            border-color: #0066cc;
            outline: none;
        }
        button {
            background-color: #0066cc;
            color: white;
            padding: 0.8rem 1.5rem;
            border: none;
            border-radius: 4px;
            cursor: pointer;
            font-size: 1rem;
            transition: background-color 0.3s;
        }
        button:hover {
            background-color: #0052a3;
        }
        .stars {
            display: flex;
            gap: 0.5rem;
            margin: 1rem 0;
        }
        .star {
            font-size: 2rem;
            color: #ddd;
            cursor: pointer;
            transition: color 0.3s;
        }
        .star:hover,
        .star.active {
            color: #ff9900;
        }
        .site-footer {
            background-color: #1a1a1a;
            color: #ddd;
            padding: 2rem 0;
        }
        .footer-container {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 2rem;
        }
        .footer-section h3 {
            color: #ff9900;
            font-size: 1.3rem;
            margin-bottom: 1rem;
            border-bottom: none;
        }
        .footer-links {
            list-style: none;
        }
        .footer-links li {
            margin-bottom: 0.5rem;
        }
        .footer-links a {
            color: #bbb;
        }
        .footer-links a:hover {
            color: #ff9900;
        }
        friend-link {
            display: block;
            margin: 1rem 0;
            padding: 0.8rem;
            background-color: #2a2a2a;
            border-radius: 4px;
            color: #ff9900;
            font-weight: bold;
            text-align: center;
        }
        .copyright {
            text-align: center;
            padding-top: 2rem;
            border-top: 1px solid #333;
            margin-top: 2rem;
            font-size: 0.9rem;
            color: #999;
        }
        @media (max-width: 768px) {
            .header-container {
                flex-wrap: wrap;
            }
            .nav-desktop {
                display: none;
            }
            .hamburger {
                display: block;
            }
            .article-header h1 {
                font-size: 2rem;
            }
            h2 { font-size: 1.7rem; }
            h3 { font-size: 1.3rem; }
            h4 { font-size: 1.1rem; }
            .footer-container {
                grid-template-columns: 1fr;
            }
        }