* { margin: 0; padding: 0; box-sizing: border-box; }
        html { scroll-behavior: smooth; }
        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            line-height: 1.7;
            color: #333;
            background: linear-gradient(135deg, #f5f7fa 0%, #e4e8f0 100%);
            min-height: 100vh;
            display: flex;
            flex-direction: column;
        }
        a { color: #FF6B8B; text-decoration: none; transition: color 0.3s ease, transform 0.2s ease; }
        a:hover { color: #FF3D6F; transform: translateY(-2px); }
        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: 800; }
        .emoji { font-size: 1.2em; margin-right: 5px; }
        .section-padding { padding: 60px 0; }
        .last-updated { font-size: 0.9em; color: #777; margin-top: 10px; }
        .site-header {
            background: #2A2D43;
            color: #fff;
            box-shadow: 0 4px 12px rgba(0,0,0,0.1);
            position: sticky;
            top: 0;
            z-index: 1000;
        }
        .header-container {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 15px 20px;
        }
        .my-logo {
            font-family: 'Comic Sans MS', cursive, sans-serif;
            font-size: 2.2rem;
            font-weight: 900;
            color: #FFD166;
            text-shadow: 2px 2px 0 #FF6B8B;
            letter-spacing: 1px;
        }
        .my-logo:hover { color: #FFC145; }
        .main-nav ul {
            display: flex;
            list-style: none;
            gap: 30px;
        }
        .main-nav a {
            color: #E0E0E0;
            font-weight: 600;
            padding: 8px 5px;
            border-bottom: 2px solid transparent;
        }
        .main-nav a:hover, .main-nav a.active {
            color: #FFD166;
            border-bottom-color: #FFD166;
        }
        .hamburger {
            display: none;
            background: none;
            border: none;
            color: #fff;
            font-size: 1.8rem;
            cursor: pointer;
        }
        .breadcrumb {
            background: #3A3F5B;
            padding: 12px 20px;
            font-size: 0.9rem;
            color: #CCC;
        }
        .breadcrumb a { color: #FFD166; }
        .breadcrumb a:hover { text-decoration: underline; }
        main { flex: 1; }
        .article-container {
            background: #fff;
            border-radius: 20px;
            box-shadow: 0 10px 30px rgba(0,0,0,0.08);
            margin: 30px auto;
            padding: 40px;
            overflow: hidden;
        }
        .article-header { margin-bottom: 40px; border-bottom: 3px dashed #FFD166; padding-bottom: 20px; }
        .article-header h1 {
            font-size: 3.2rem;
            color: #2A2D43;
            margin-bottom: 15px;
            line-height: 1.2;
        }
        .lead { font-size: 1.3rem; color: #555; margin-bottom: 20px; }
        .search-module {
            background: #F8F9FA;
            border: 2px solid #E9ECEF;
            border-radius: 50px;
            padding: 25px;
            margin: 30px 0;
            text-align: center;
        }
        .search-module h2 { margin-bottom: 15px; color: #2A2D43; }
        .search-form {
            display: flex;
            max-width: 600px;
            margin: 0 auto;
        }
        .search-input {
            flex: 1;
            padding: 15px 20px;
            border: 2px solid #FF6B8B;
            border-radius: 50px 0 0 50px;
            font-size: 1rem;
            outline: none;
        }
        .search-btn {
            background: linear-gradient(to right, #FF6B8B, #FF8E53);
            color: white;
            border: none;
            border-radius: 0 50px 50px 0;
            padding: 0 30px;
            cursor: pointer;
            font-weight: bold;
            font-size: 1rem;
            transition: all 0.3s ease;
        }
        .search-btn:hover { background: linear-gradient(to right, #FF3D6F, #FF7A3D); }
        .article-content h2 {
            font-size: 2.2rem;
            color: #2A2D43;
            margin: 50px 0 20px;
            padding-bottom: 10px;
            border-bottom: 2px solid #FFD166;
        }
        .article-content h3 {
            font-size: 1.8rem;
            color: #3A3F5B;
            margin: 35px 0 15px;
        }
        .article-content h4 {
            font-size: 1.4rem;
            color: #555;
            margin: 25px 0 10px;
        }
        .article-content p {
            margin-bottom: 1.5em;
            font-size: 1.1rem;
            text-align: justify;
            color: #444;
        }
        .highlight-box {
            background: linear-gradient(120deg, #E3F2FD, #F3E5F5);
            border-left: 5px solid #FF6B8B;
            padding: 20px;
            margin: 25px 0;
            border-radius: 0 10px 10px 0;
        }
        .feature-img {
            width: 80%;
            margin: 30px auto;
            border-radius: 15px;
            overflow: hidden;
            box-shadow: 0 15px 25px rgba(0,0,0,0.1);
            transition: transform 0.5s ease;
        }
        .feature-img:hover { transform: scale(1.02); }
        .img-caption { text-align: center; font-style: italic; color: #666; margin-top: 10px; font-size: 0.95rem; }
        .link-list {
            background: #F8F9FA;
            padding: 20px;
            border-radius: 10px;
            margin: 30px 0;
        }
        .link-list h3 { margin-top: 0; }
        .link-list ul { list-style: square inside; }
        .link-list li { margin-bottom: 10px; }
        .user-interaction { margin-top: 60px; border-top: 2px solid #EEE; padding-top: 40px; }
        .interaction-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 30px;
            margin-top: 30px;
        }
        .interaction-card {
            background: #F8F9FA;
            border-radius: 15px;
            padding: 25px;
            box-shadow: 0 8px 16px rgba(0,0,0,0.05);
            transition: transform 0.3s ease, box-shadow 0.3s ease;
        }
        .interaction-card:hover {
            transform: translateY(-10px);
            box-shadow: 0 15px 30px rgba(0,0,0,0.1);
        }
        .interaction-card h3 { color: #2A2D43; margin-bottom: 20px; }
        .form-group { margin-bottom: 20px; }
        .form-group label { display: block; margin-bottom: 8px; font-weight: 600; color: #555; }
        .form-control {
            width: 100%;
            padding: 12px 15px;
            border: 2px solid #DDD;
            border-radius: 10px;
            font-size: 1rem;
            transition: border-color 0.3s ease;
        }
        .form-control:focus { border-color: #FF6B8B; outline: none; }
        textarea.form-control { min-height: 120px; resize: vertical; }
        .rating {
            display: flex;
            justify-content: center;
            gap: 10px;
            margin: 15px 0;
        }
        .rating input { display: none; }
        .rating label {
            font-size: 2rem;
            color: #DDD;
            cursor: pointer;
            transition: color 0.2s ease;
        }
        .rating label:hover,
        .rating label:hover ~ label,
        .rating input:checked ~ label { color: #FFD166; }
        .submit-btn {
            background: linear-gradient(to right, #2A2D43, #3A3F5B);
            color: white;
            border: none;
            border-radius: 50px;
            padding: 15px 30px;
            font-size: 1rem;
            font-weight: bold;
            cursor: pointer;
            width: 100%;
            transition: all 0.3s ease;
        }
        .submit-btn:hover { background: linear-gradient(to right, #3A3F5B, #4A4F6B); }
        .site-footer {
            background: #2A2D43;
            color: #E0E0E0;
            padding: 40px 0 20px;
            margin-top: 60px;
        }
        .footer-container {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 40px;
            margin-bottom: 30px;
        }
        .footer-logo { font-size: 2rem; color: #FFD166; margin-bottom: 15px; }
        .footer-links h4 { color: #FFD166; margin-bottom: 20px; font-size: 1.2rem; }
        .footer-links ul { list-style: none; }
        .footer-links li { margin-bottom: 10px; }
        .footer-links a { color: #CCC; }
        .footer-links a:hover { color: #FFD166; }
        friend-link {
            display: inline-block;
            background: #3A3F5B;
            color: #FFD166;
            padding: 8px 15px;
            border-radius: 5px;
            margin: 5px;
            font-size: 0.9rem;
        }
        friend-link a { color: inherit; }
        .copyright {
            text-align: center;
            padding-top: 20px;
            border-top: 1px solid #3A3F5B;
            font-size: 0.9rem;
            color: #AAA;
        }
        @media (max-width: 992px) {
            .article-container { padding: 30px; }
            .article-header h1 { font-size: 2.6rem; }
        }
        @media (max-width: 768px) {
            .hamburger { display: block; }
            .main-nav {
                position: fixed;
                top: 80px;
                left: 0;
                width: 100%;
                background: #2A2D43;
                flex-direction: column;
                align-items: center;
                padding: 20px 0;
                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;
                gap: 20px;
                width: 100%;
                text-align: center;
            }
            .header-container { padding: 15px; }
            .article-header h1 { font-size: 2.2rem; }
            .article-content h2 { font-size: 1.9rem; }
            .search-form { flex-direction: column; }
            .search-input { border-radius: 50px; margin-bottom: 10px; }
            .search-btn { border-radius: 50px; padding: 15px; }
            .interaction-grid { grid-template-columns: 1fr; }
        }
        @media (max-width: 480px) {
            .article-container { padding: 20px; margin: 15px auto; }
            .article-header h1 { font-size: 1.9rem; }
            .lead { font-size: 1.1rem; }
        }