* { 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%, #c3cfe2 100%);
            min-height: 100vh;
            padding-bottom: 60px;
        }
        img { max-width: 100%; height: auto; display: block; }
        h1 { font-size: 2.8rem; color: #2c3e50; margin-bottom: 1.5rem; border-left: 6px solid #e74c3c; padding-left: 15px; }
        h2 { font-size: 2.2rem; color: #34495e; margin: 2.5rem 0 1.2rem; padding-bottom: 8px; border-bottom: 2px solid #3498db; }
        h3 { font-size: 1.8rem; color: #16a085; margin: 2rem 0 1rem; }
        h4 { font-size: 1.4rem; color: #8e44ad; margin: 1.5rem 0 0.8rem; }
        p { margin-bottom: 1.5rem; font-size: 1.1rem; }
        a { color: #2980b9; text-decoration: none; transition: color 0.3s; }
        a:hover { color: #e74c3c; text-decoration: underline; }
        .lead { font-size: 1.3rem; color: #555; font-weight: 300; }
        .highlight { background-color: #fffacd; padding: 2px 6px; border-radius: 3px; }
        .emoji { font-size: 1.2em; margin-right: 5px; }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        .site-header {
            background: linear-gradient(90deg, #1a2980, #26d0ce);
            color: white;
            padding: 1.5rem 0;
            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;
        }
        .my-logo {
            font-size: 2.2rem;
            font-weight: 800;
            text-decoration: none;
            color: white;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .my-logo:hover { text-decoration: none; color: #ffeb3b; }
        .logo-text { text-shadow: 2px 2px 4px rgba(0,0,0,0.3); }
        .main-nav ul {
            display: flex;
            list-style: none;
            gap: 2rem;
        }
        .main-nav a {
            color: white;
            font-weight: 600;
            font-size: 1.1rem;
            padding: 8px 12px;
            border-radius: 5px;
            transition: all 0.3s;
        }
        .main-nav a:hover, .main-nav a:focus {
            background-color: rgba(255, 255, 255, 0.2);
            text-decoration: none;
            transform: translateY(-2px);
        }
        .hamburger {
            display: none;
            font-size: 1.8rem;
            background: none;
            border: none;
            color: white;
            cursor: pointer;
            padding: 5px;
        }
        .breadcrumb {
            padding: 1rem 0;
            font-size: 0.95rem;
            background-color: #ecf0f1;
            margin-bottom: 2rem;
        }
        .breadcrumb ol {
            display: flex;
            flex-wrap: wrap;
            list-style: none;
        }
        .breadcrumb li:not(:last-child)::after {
            content: "›";
            margin: 0 10px;
            color: #7f8c8d;
        }
        .breadcrumb a { color: #3498db; }
        .content-grid {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 3rem;
            margin-top: 2rem;
        }
        article {
            background: white;
            padding: 2.5rem;
            border-radius: 15px;
            box-shadow: 0 10px 30px rgba(0,0,0,0.08);
        }
        .article-meta {
            color: #7f8c8d;
            font-style: italic;
            margin-bottom: 2rem;
            padding-bottom: 1rem;
            border-bottom: 1px dashed #bdc3c7;
            display: flex;
            justify-content: space-between;
            flex-wrap: wrap;
        }
        .featured-img {
            width: 100%;
            border-radius: 10px;
            margin: 2rem auto;
            box-shadow: 0 5px 15px rgba(0,0,0,0.1);
            border: 3px solid #3498db;
        }
        .sidebar {
            background: white;
            padding: 1.5rem;
            border-radius: 15px;
            box-shadow: 0 5px 20px rgba(0,0,0,0.06);
            align-self: start;
            position: sticky;
            top: 120px;
        }
        .widget {
            margin-bottom: 2rem;
        }
        .widget-title {
            font-size: 1.3rem;
            color: #2c3e50;
            margin-bottom: 1rem;
            padding-bottom: 8px;
            border-bottom: 1px solid #eee;
        }
        .link-list {
            list-style: none;
        }
        .link-list li {
            margin-bottom: 0.8rem;
            padding-left: 1.2rem;
            position: relative;
        }
        .link-list li:before {
            content: "➤";
            position: absolute;
            left: 0;
            color: #e74c3c;
        }
        .interactive-module {
            background: #f8f9fa;
            border-left: 4px solid #3498db;
            padding: 1.5rem;
            margin: 2.5rem 0;
            border-radius: 0 8px 8px 0;
        }
        .module-title {
            color: #2c3e50;
            margin-bottom: 1rem;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .form-group {
            margin-bottom: 1.2rem;
        }
        label {
            display: block;
            margin-bottom: 0.5rem;
            font-weight: 600;
            color: #555;
        }
        input, textarea, select {
            width: 100%;
            padding: 12px 15px;
            border: 1px solid #ddd;
            border-radius: 6px;
            font-family: inherit;
            font-size: 1rem;
            transition: border 0.3s;
        }
        input:focus, textarea:focus, select:focus {
            outline: none;
            border-color: #3498db;
            box-shadow: 0 0 0 3px rgba(52, 152, 219, 0.2);
        }
        textarea {
            min-height: 120px;
            resize: vertical;
        }
        .btn {
            display: inline-block;
            background: linear-gradient(to right, #3498db, #2c3e50);
            color: white;
            padding: 12px 25px;
            border: none;
            border-radius: 6px;
            cursor: pointer;
            font-weight: 600;
            font-size: 1rem;
            transition: all 0.3s;
        }
        .btn:hover {
            transform: translateY(-3px);
            box-shadow: 0 7px 14px rgba(52, 152, 219, 0.3);
            text-decoration: none;
        }
        .rating-stars {
            display: flex;
            gap: 5px;
            margin: 1rem 0;
        }
        .star {
            font-size: 1.8rem;
            color: #ddd;
            cursor: pointer;
            transition: color 0.2s;
        }
        .star:hover,
        .star.active {
            color: #f39c12;
        }
        .site-footer {
            background: #2c3e50;
            color: #ecf0f1;
            padding: 3rem 0 1.5rem;
            margin-top: 4rem;
        }
        .footer-container {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 2rem;
        }
        .footer-widget h3 {
            color: #1abc9c;
            font-size: 1.4rem;
            margin-bottom: 1.5rem;
        }
        friend-link {
            display: inline-block;
            background: rgba(255,255,255,0.1);
            padding: 8px 15px;
            margin: 5px;
            border-radius: 4px;
            color: #3498db;
            transition: background 0.3s;
        }
        friend-link:hover {
            background: rgba(255,255,255,0.2);
            text-decoration: none;
        }
        .copyright {
            text-align: center;
            padding-top: 2rem;
            margin-top: 2rem;
            border-top: 1px solid rgba(255,255,255,0.1);
            color: #95a5a6;
            font-size: 0.9rem;
        }
        @media (max-width: 992px) {
            .content-grid { grid-template-columns: 1fr; }
            .sidebar { position: static; }
        }
        @media (max-width: 768px) {
            h1 { font-size: 2.2rem; }
            h2 { font-size: 1.8rem; }
            h3 { font-size: 1.5rem; }
            .header-container { flex-wrap: wrap; }
            .main-nav {
                width: 100%;
                order: 3;
                margin-top: 1rem;
                display: none;
            }
            .main-nav.active { display: block; }
            .main-nav ul {
                flex-direction: column;
                gap: 0.5rem;
            }
            .hamburger { display: block; }
            .breadcrumb ol { font-size: 0.85rem; }
            article { padding: 1.5rem; }
        }