* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            line-height: 1.8;
            color: #2c3e50;
            background-color: #f8f9fa;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 15px;
        }
        a {
            color: #2980b9;
            text-decoration: none;
            transition: color 0.3s ease;
        }
        a:hover {
            color: #e74c3c;
            text-decoration: underline;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: 8px;
        }
        ul, ol {
            padding-left: 2em;
            margin: 1em 0;
        }
        .container {
            width: 100%;
        }
        .site-header {
            background: linear-gradient(135deg, #1a2980, #26d0ce);
            color: white;
            padding: 1.5rem 0;
            border-bottom-left-radius: 15px;
            border-bottom-right-radius: 15px;
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
            margin-bottom: 2rem;
            position: sticky;
            top: 0;
            z-index: 1000;
        }
        .header-top {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 0 1rem;
        }
        .my-logo {
            font-size: 2.8rem;
            font-weight: 900;
            font-family: 'Arial Black', sans-serif;
            background: linear-gradient(to right, #FFD700, #FF8C00);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
            letter-spacing: 2px;
        }
        .my-logo:hover {
            transform: scale(1.05);
            transition: transform 0.3s ease;
        }
        .mobile-toggle {
            display: none;
            font-size: 1.8rem;
            background: none;
            border: none;
            color: white;
            cursor: pointer;
        }
        .main-nav ul {
            display: flex;
            list-style: none;
            gap: 2rem;
            margin: 0;
        }
        .main-nav a {
            color: white;
            font-weight: 600;
            padding: 0.5rem 1rem;
            border-radius: 5px;
        }
        .main-nav a:hover {
            background-color: rgba(255, 255, 255, 0.2);
            text-decoration: none;
        }
        .breadcrumb {
            padding: 1rem;
            font-size: 0.9rem;
            color: #ecf0f1;
        }
        .breadcrumb a {
            color: #FFD700;
        }
        @media (max-width: 768px) {
            .mobile-toggle {
                display: block;
            }
            .main-nav ul {
                flex-direction: column;
                display: none;
                position: absolute;
                top: 100%;
                left: 0;
                right: 0;
                background-color: #1a2980;
                padding: 1rem;
                border-radius: 0 0 15px 15px;
                box-shadow: 0 10px 15px rgba(0,0,0,0.2);
            }
            .main-nav.active ul {
                display: flex;
            }
            .main-nav li {
                text-align: center;
            }
        }
        .search-box {
            max-width: 600px;
            margin: 2rem auto;
            padding: 1rem;
            background: white;
            border-radius: 50px;
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.08);
            display: flex;
        }
        .search-box input {
            flex-grow: 1;
            border: none;
            padding: 1rem 1.5rem;
            font-size: 1.1rem;
            border-radius: 50px 0 0 50px;
            outline: none;
        }
        .search-box button {
            background: linear-gradient(to right, #e74c3c, #c0392b);
            color: white;
            border: none;
            padding: 1rem 2rem;
            font-size: 1.1rem;
            border-radius: 0 50px 50px 0;
            cursor: pointer;
            transition: all 0.3s ease;
        }
        .search-box button:hover {
            background: linear-gradient(to right, #c0392b, #a93226);
            transform: translateY(-2px);
        }
        .main-content {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 2.5rem;
            margin-bottom: 3rem;
        }
        @media (max-width: 992px) {
            .main-content {
                grid-template-columns: 1fr;
            }
        }
        .article-content {
            background: white;
            padding: 2.5rem;
            border-radius: 15px;
            box-shadow: 0 5px 25px rgba(0, 0, 0, 0.05);
        }
        h1 {
            color: #2c3e50;
            font-size: 2.8rem;
            margin-bottom: 1.5rem;
            padding-bottom: 1rem;
            border-bottom: 4px solid #3498db;
            line-height: 1.2;
        }
        h2 {
            color: #2980b9;
            font-size: 2.2rem;
            margin: 2.5rem 0 1rem 0;
            padding-top: 1rem;
            border-top: 2px dashed #eee;
        }
        h3 {
            color: #16a085;
            font-size: 1.7rem;
            margin: 2rem 0 1rem 0;
        }
        h4 {
            color: #8e44ad;
            font-size: 1.3rem;
            margin: 1.5rem 0 0.8rem 0;
        }
        .lead {
            font-size: 1.3rem;
            color: #7f8c8d;
            font-style: italic;
            margin-bottom: 2rem;
            padding-left: 1rem;
            border-left: 4px solid #3498db;
        }
        .highlight {
            background-color: #fffde7;
            padding: 1.5rem;
            border-left: 5px solid #f1c40f;
            margin: 1.5rem 0;
            border-radius: 0 8px 8px 0;
        }
        .stats-box {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 1rem;
            margin: 2rem 0;
            background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
            color: white;
            padding: 1.5rem;
            border-radius: 10px;
        }
        .stat-item {
            text-align: center;
            padding: 1rem;
        }
        .stat-value {
            font-size: 2.5rem;
            font-weight: bold;
            display: block;
        }
        .stat-label {
            font-size: 0.9rem;
            opacity: 0.9;
        }
        .quote {
            font-style: italic;
            color: #555;
            border-left: 3px solid #9b59b6;
            padding-left: 1.5rem;
            margin: 2rem 0;
        }
        .author {
            text-align: right;
            font-weight: bold;
            color: #2c3e50;
            margin-top: 0.5rem;
        }
        .emoji {
            font-size: 1.2em;
            margin-right: 0.3em;
        }
        strong {
            color: #e74c3c;
        }
        .last-updated {
            text-align: right;
            font-size: 0.9rem;
            color: #95a5a6;
            margin-top: 3rem;
            padding-top: 1rem;
            border-top: 1px solid #eee;
        }
        .sidebar {
            background: white;
            padding: 1.5rem;
            border-radius: 15px;
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
            align-self: start;
            position: sticky;
            top: 120px;
        }
        .sidebar h3 {
            color: #2c3e50;
            border-bottom: 2px solid #3498db;
            padding-bottom: 0.5rem;
            margin-top: 0;
        }
        .sidebar ul {
            list-style: none;
            padding-left: 0;
        }
        .sidebar li {
            margin-bottom: 0.8rem;
            padding-bottom: 0.8rem;
            border-bottom: 1px dotted #ecf0f1;
        }
        .sidebar a {
            display: block;
            padding: 0.5rem;
            border-radius: 5px;
        }
        .sidebar a:hover {
            background-color: #f8f9fa;
        }
        .featured-image {
            margin: 2.5rem auto;
            text-align: center;
        }
        .featured-image figcaption {
            font-size: 0.9rem;
            color: #7f8c8d;
            margin-top: 0.5rem;
            font-style: italic;
        }
        .user-interaction {
            background: white;
            padding: 2rem;
            border-radius: 15px;
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
            margin: 2rem 0;
        }
        .interaction-title {
            color: #2c3e50;
            margin-bottom: 1.5rem;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .form-group {
            margin-bottom: 1.5rem;
        }
        .form-group label {
            display: block;
            margin-bottom: 0.5rem;
            font-weight: 600;
            color: #34495e;
        }
        .form-control {
            width: 100%;
            padding: 0.8rem 1rem;
            border: 1px solid #bdc3c7;
            border-radius: 8px;
            font-size: 1rem;
            transition: border 0.3s ease;
        }
        .form-control:focus {
            border-color: #3498db;
            outline: none;
            box-shadow: 0 0 0 3px rgba(52, 152, 219, 0.2);
        }
        textarea.form-control {
            min-height: 150px;
            resize: vertical;
        }
        .star-rating {
            display: flex;
            flex-direction: row-reverse;
            justify-content: flex-end;
            font-size: 2rem;
            gap: 5px;
        }
        .star-rating input {
            display: none;
        }
        .star-rating label {
            color: #ddd;
            cursor: pointer;
            transition: color 0.2s;
        }
        .star-rating input:checked ~ label,
        .star-rating label:hover,
        .star-rating label:hover ~ label {
            color: #FFD700;
        }
        .btn-submit {
            background: linear-gradient(to right, #27ae60, #229954);
            color: white;
            border: none;
            padding: 1rem 2.5rem;
            font-size: 1.1rem;
            border-radius: 50px;
            cursor: pointer;
            transition: all 0.3s ease;
            display: block;
            margin: 1.5rem auto 0;
        }
        .btn-submit:hover {
            background: linear-gradient(to right, #229954, #1e8449);
            transform: translateY(-3px);
            box-shadow: 0 7px 14px rgba(34, 153, 84, 0.3);
        }
        .site-footer {
            background: #2c3e50;
            color: #ecf0f1;
            padding: 3rem 1rem;
            border-top-left-radius: 15px;
            border-top-right-radius: 15px;
            margin-top: 3rem;
        }
        .footer-content {
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            gap: 2rem;
            margin-bottom: 2rem;
        }
        .footer-section {
            flex: 1;
            min-width: 250px;
        }
        .footer-section h3 {
            color: #3498db;
            margin-bottom: 1.5rem;
            font-size: 1.3rem;
        }
        friend-link {
            display: block;
            margin-bottom: 1rem;
            padding: 0.5rem;
            background: rgba(255,255,255,0.05);
            border-radius: 5px;
            transition: background 0.3s;
        }
        friend-link:hover {
            background: rgba(255,255,255,0.1);
        }
        .copyright {
            text-align: center;
            padding-top: 2rem;
            border-top: 1px solid #4a6572;
            color: #bdc3c7;
            font-size: 0.9rem;
        }