* {
            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: #f8f9fa;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 15px;
        }
        a {
            text-decoration: none;
            color: #1a73e8;
            transition: color 0.3s ease;
        }
        a:hover {
            color: #0d47a1;
            text-decoration: underline;
        }
        ul {
            list-style: none;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        .header {
            background: linear-gradient(135deg, #6a11cb 0%, #2575fc 100%);
            color: white;
            padding: 20px 0;
            border-radius: 0 0 10px 10px;
            box-shadow: 0 4px 12px rgba(0,0,0,0.1);
        }
        .header-container {
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
        }
        .my-logo {
            font-size: 2.5rem;
            font-weight: bold;
            color: white;
            text-transform: uppercase;
            letter-spacing: 2px;
            text-shadow: 2px 2px 4px rgba(0,0,0,0.3);
        }
        .my-logo:hover {
            color: #ffeb3b;
        }
        .nav-desktop {
            display: flex;
            gap: 25px;
        }
        .nav-desktop a {
            color: white;
            font-weight: 600;
            padding: 8px 12px;
            border-radius: 5px;
        }
        .nav-desktop a:hover {
            background-color: rgba(255,255,255,0.2);
            text-decoration: none;
        }
        .hamburger {
            display: none;
            font-size: 1.8rem;
            cursor: pointer;
            color: white;
        }
        #nav-toggle {
            display: none;
        }
        .nav-mobile {
            display: none;
            flex-direction: column;
            width: 100%;
            background-color: #2575fc;
            border-radius: 5px;
            margin-top: 15px;
            padding: 15px;
        }
        #nav-toggle:checked ~ .nav-mobile {
            display: flex;
        }
        .nav-mobile a {
            color: white;
            padding: 10px;
            border-bottom: 1px solid rgba(255,255,255,0.2);
        }
        .nav-mobile a:last-child {
            border-bottom: none;
        }
        .breadcrumb {
            margin-top: 15px;
            font-size: 0.9rem;
            color: #e0e0e0;
        }
        .breadcrumb a {
            color: #ffeb3b;
        }
        .breadcrumb a:hover {
            color: #ffc107;
        }
        .main-content {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 30px;
            margin: 30px 0;
        }
        @media (max-width: 768px) {
            .main-content {
                grid-template-columns: 1fr;
            }
        }
        .article-section {
            background: white;
            padding: 30px;
            border-radius: 10px;
            box-shadow: 0 4px 8px rgba(0,0,0,0.05);
        }
        .article-section h1 {
            font-size: 2.8rem;
            color: #2d3748;
            margin-bottom: 20px;
            border-left: 5px solid #6a11cb;
            padding-left: 15px;
        }
        .article-section h2 {
            font-size: 2rem;
            color: #4a5568;
            margin: 30px 0 15px;
            padding-bottom: 10px;
            border-bottom: 2px solid #e2e8f0;
        }
        .article-section h3 {
            font-size: 1.5rem;
            color: #5a67d8;
            margin: 20px 0 10px;
        }
        .article-section h4 {
            font-size: 1.2rem;
            color: #718096;
            margin: 15px 0 8px;
        }
        .article-section p {
            margin-bottom: 20px;
            text-align: justify;
            font-size: 1.1rem;
        }
        .article-section strong {
            color: #2d3748;
            font-weight: 700;
        }
        .article-section em {
            font-style: italic;
            color: #555;
        }
        .highlight-box {
            background: #e3f2fd;
            border-left: 4px solid #2196f3;
            padding: 20px;
            margin: 25px 0;
            border-radius: 0 5px 5px 0;
        }
        .image-container {
            margin: 25px auto;
            text-align: center;
        }
        .image-container img {
            border-radius: 10px;
            box-shadow: 0 6px 12px rgba(0,0,0,0.1);
            transition: transform 0.3s ease;
        }
        .image-container img:hover {
            transform: scale(1.02);
        }
        .image-caption {
            font-size: 0.9rem;
            color: #666;
            margin-top: 10px;
        }
        .link-list {
            background: #f1f8ff;
            padding: 20px;
            border-radius: 8px;
            margin: 25px 0;
        }
        .link-list ul {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
            gap: 10px;
        }
        .link-list li {
            padding: 8px 0;
            border-bottom: 1px dashed #ccc;
        }
        .link-list li:last-child {
            border-bottom: none;
        }
        .update-time {
            font-size: 0.9rem;
            color: #888;
            text-align: right;
            margin-top: 20px;
            padding-top: 10px;
            border-top: 1px solid #eee;
        }
        .sidebar {
            background: white;
            padding: 25px;
            border-radius: 10px;
            box-shadow: 0 4px 8px rgba(0,0,0,0.05);
        }
        .sidebar h3 {
            color: #4a5568;
            margin-bottom: 20px;
            font-size: 1.5rem;
        }
        .search-box, .comment-form, .rating-form {
            margin-bottom: 30px;
        }
        .search-box input, .comment-form input, .comment-form textarea, .rating-form select {
            width: 100%;
            padding: 12px;
            margin-bottom: 15px;
            border: 1px solid #ddd;
            border-radius: 5px;
            font-size: 1rem;
        }
        .search-box button, .comment-form button, .rating-form button {
            width: 100%;
            padding: 12px;
            background: #6a11cb;
            color: white;
            border: none;
            border-radius: 5px;
            font-size: 1rem;
            cursor: pointer;
            transition: background 0.3s ease;
        }
        .search-box button:hover, .comment-form button:hover, .rating-form button:hover {
            background: #2575fc;
        }
        .stars {
            display: flex;
            justify-content: space-around;
            margin-bottom: 15px;
        }
        .stars i {
            font-size: 1.5rem;
            color: #ffc107;
            cursor: pointer;
        }
        .footer {
            background: #2d3748;
            color: white;
            padding: 40px 20px;
            border-radius: 10px 10px 0 0;
            margin-top: 50px;
        }
        .friend-links {
            display: flex;
            flex-wrap: wrap;
            gap: 20px;
            justify-content: center;
            margin-bottom: 30px;
        }
        .friend-links a {
            color: #90cdf4;
            padding: 10px 15px;
            background: rgba(255,255,255,0.1);
            border-radius: 5px;
        }
        .friend-links a:hover {
            background: rgba(255,255,255,0.2);
            color: white;
        }
        .copyright {
            text-align: center;
            font-size: 0.9rem;
            color: #cbd5e0;
            padding-top: 20px;
            border-top: 1px solid #4a5568;
        }
        @media (max-width: 768px) {
            .nav-desktop {
                display: none;
            }
            .hamburger {
                display: block;
            }
            .header-container {
                flex-direction: column;
                align-items: flex-start;
            }
            .my-logo {
                font-size: 2rem;
            }
            .article-section h1 {
                font-size: 2.2rem;
            }
            .article-section h2 {
                font-size: 1.8rem;
            }
        }