* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            line-height: 1.8;
            color: #333;
            background-color: #f9f9ff;
            max-width: 1600px;
            margin: 0 auto;
            padding: 0 10px;
        }
        a {
            color: #6a5acd;
            text-decoration: none;
            transition: color 0.3s;
        }
        a:hover {
            color: #ff6b8b;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: 10px;
            box-shadow: 0 5px 15px rgba(0,0,0,0.1);
        }
        .site-header {
            background: linear-gradient(135deg, #8a2be2, #4169e1);
            color: white;
            padding: 1.5rem 0;
            margin-bottom: 2rem;
            border-radius: 0 0 15px 15px;
            position: sticky;
            top: 0;
            z-index: 1000;
        }
        .header-container {
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: center;
            padding: 0 20px;
        }
        .my-logo {
            font-size: 2.2rem;
            font-weight: 800;
            color: white;
            text-shadow: 2px 2px 4px rgba(0,0,0,0.3);
            font-family: 'Comic Sans MS', cursive, sans-serif;
        }
        .my-logo:hover {
            text-shadow: 0 0 10px #ffd700;
        }
        .search-form {
            display: flex;
            flex-grow: 1;
            max-width: 500px;
            margin: 0 30px;
        }
        .search-form input {
            flex-grow: 1;
            padding: 12px 20px;
            border: none;
            border-radius: 30px 0 0 30px;
            font-size: 1rem;
            outline: none;
        }
        .search-form button {
            background: #ffd700;
            color: #333;
            border: none;
            padding: 12px 25px;
            border-radius: 0 30px 30px 0;
            cursor: pointer;
            font-weight: bold;
            transition: background 0.3s;
        }
        .search-form button:hover {
            background: #ffed4e;
        }
        .hamburger {
            display: none;
            background: none;
            border: none;
            color: white;
            font-size: 1.8rem;
            cursor: pointer;
        }
        .nav-container {
            display: flex;
            justify-content: space-between;
            align-items: center;
            width: 100%;
            margin-top: 1rem;
        }
        .main-nav ul {
            display: flex;
            list-style: none;
            flex-wrap: wrap;
            gap: 1.5rem;
        }
        .main-nav a {
            color: white;
            font-weight: 600;
            padding: 8px 15px;
            border-radius: 20px;
            transition: all 0.3s;
        }
        .main-nav a:hover {
            background: rgba(255,255,255,0.2);
            transform: translateY(-3px);
        }
        .breadcrumb {
            padding: 15px 20px;
            background: #e6e6fa;
            border-radius: 10px;
            margin-bottom: 25px;
            font-size: 0.95rem;
        }
        .breadcrumb a {
            color: #6a5acd;
        }
        .main-content-area {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 40px;
            margin-bottom: 40px;
        }
        @media (max-width: 1024px) {
            .main-content-area {
                grid-template-columns: 1fr;
            }
        }
        .article-content {
            background: white;
            padding: 35px;
            border-radius: 20px;
            box-shadow: 0 10px 30px rgba(0,0,0,0.08);
        }
        h1 {
            color: #4b0082;
            font-size: 2.8rem;
            margin-bottom: 1.5rem;
            line-height: 1.2;
            border-left: 8px solid #ff6b8b;
            padding-left: 20px;
        }
        h2 {
            color: #8a2be2;
            margin: 2.5rem 0 1.2rem;
            padding-bottom: 10px;
            border-bottom: 3px dashed #e6e6fa;
        }
        h3 {
            color: #4169e1;
            margin: 2rem 0 1rem;
        }
        h4 {
            color: #6a5acd;
            margin: 1.5rem 0 0.8rem;
        }
        p {
            margin-bottom: 1.5rem;
            text-align: justify;
        }
        .update-time {
            background: #f0f8ff;
            padding: 15px;
            border-radius: 10px;
            margin: 20px 0;
            font-style: italic;
            color: #555;
            border-left: 5px solid #4169e1;
        }
        .highlight-box {
            background: linear-gradient(to right, #fffacd, #e6f7ff);
            padding: 25px;
            border-radius: 15px;
            margin: 25px 0;
            border: 2px solid #ffd700;
        }
        .internal-links {
            background: #f5f5ff;
            padding: 20px;
            border-radius: 15px;
            margin: 30px 0;
        }
        .internal-links ul {
            display: flex;
            flex-wrap: wrap;
            gap: 15px;
            list-style: none;
        }
        .internal-links li {
            background: white;
            padding: 12px 20px;
            border-radius: 30px;
            box-shadow: 0 3px 8px rgba(0,0,0,0.1);
        }
        .sidebar {
            background: white;
            padding: 25px;
            border-radius: 20px;
            box-shadow: 0 8px 25px rgba(0,0,0,0.06);
            align-self: start;
        }
        .sidebar h3 {
            color: #ff6b8b;
            text-align: center;
        }
        .related-links {
            list-style: none;
            margin-top: 20px;
        }
        .related-links li {
            margin-bottom: 15px;
            padding-bottom: 15px;
            border-bottom: 1px dotted #ddd;
        }
        .user-interaction {
            background: white;
            padding: 35px;
            border-radius: 20px;
            margin: 40px 0;
            box-shadow: 0 10px 30px rgba(0,0,0,0.08);
        }
        .interaction-form {
            display: flex;
            flex-direction: column;
            gap: 20px;
            max-width: 700px;
            margin-top: 20px;
        }
        .form-group {
            display: flex;
            flex-direction: column;
        }
        .form-group label {
            font-weight: 600;
            margin-bottom: 8px;
            color: #555;
        }
        .form-group input,
        .form-group textarea,
        .form-group select {
            padding: 15px;
            border: 2px solid #ddd;
            border-radius: 10px;
            font-size: 1rem;
            transition: border 0.3s;
        }
        .form-group input:focus,
        .form-group textarea:focus,
        .form-group select:focus {
            border-color: #8a2be2;
            outline: none;
        }
        .rating-stars {
            display: flex;
            gap: 10px;
            font-size: 1.8rem;
            color: #ddd;
            cursor: pointer;
        }
        .rating-stars .star:hover,
        .rating-stars .star.active {
            color: #ffd700;
        }
        .submit-btn {
            background: linear-gradient(to right, #8a2be2, #4169e1);
            color: white;
            border: none;
            padding: 18px;
            border-radius: 10px;
            font-size: 1.1rem;
            font-weight: bold;
            cursor: pointer;
            transition: transform 0.3s, box-shadow 0.3s;
        }
        .submit-btn:hover {
            transform: translateY(-5px);
            box-shadow: 0 7px 15px rgba(138, 43, 226, 0.4);
        }
        .site-footer {
            background: linear-gradient(135deg, #2c3e50, #4b0082);
            color: white;
            padding: 40px 20px;
            border-radius: 20px 20px 0 0;
            margin-top: 60px;
        }
        .footer-content {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 40px;
            margin-bottom: 30px;
        }
        .footer-section h3 {
            color: #ffd700;
            margin-bottom: 20px;
        }
        friend-link {
            display: block;
            background: rgba(255,255,255,0.1);
            padding: 15px;
            margin: 10px 0;
            border-radius: 8px;
            transition: background 0.3s;
        }
        friend-link:hover {
            background: rgba(255,255,255,0.2);
        }
        .copyright {
            text-align: center;
            padding-top: 25px;
            border-top: 1px solid rgba(255,255,255,0.2);
            font-size: 0.95rem;
            color: #ccc;
        }
        @media (max-width: 768px) {
            .header-container {
                flex-direction: column;
                align-items: stretch;
                gap: 20px;
            }
            .search-form {
                margin: 0;
                order: 3;
                max-width: 100%;
            }
            .hamburger {
                display: block;
                align-self: flex-end;
                margin-top: -50px;
            }
            .nav-container {
                display: none;
                flex-direction: column;
                align-items: stretch;
            }
            .nav-container.active {
                display: flex;
            }
            .main-nav ul {
                flex-direction: column;
                gap: 10px;
            }
            h1 {
                font-size: 2.2rem;
            }
            .article-content, .sidebar, .user-interaction {
                padding: 25px 20px;
            }
            .internal-links ul {
                flex-direction: column;
            }
        }