* { 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-color: #f9f9fb;
            max-width: 1600px;
            margin: 0 auto;
            overflow-x: hidden;
        }
        a { color: #6a11cb; text-decoration: none; transition: color 0.3s ease; }
        a:hover { color: #2575fc; }
        img { max-width: 100%; height: auto; display: block; }
        .container { width: 100%; padding: 0 20px; }
        .section-padding { padding: 60px 0; }
        .text-center { text-align: center; }
        .mb-3 { margin-bottom: 1rem; }
        .mb-4 { margin-bottom: 2rem; }
        .mt-4 { margin-top: 2rem; }
        .site-header {
            background: linear-gradient(135deg, #1a1a2e 0%, #16213e 100%);
            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;
            background: linear-gradient(90deg, #ff6b6b, #ffd93d, #6bcf7f);
            -webkit-background-clip: text;
            background-clip: text;
            -webkit-text-fill-color: transparent;
            text-transform: uppercase;
            letter-spacing: 1px;
        }
        .my-logo a { background: transparent; }
        .main-nav ul {
            display: flex;
            list-style: none;
            gap: 2rem;
        }
        .main-nav a {
            color: #e6e6e6;
            font-weight: 600;
            padding: 0.5rem 0.8rem;
            border-radius: 4px;
        }
        .main-nav a:hover, .main-nav a:focus {
            background: rgba(255,255,255,0.15);
            color: white;
        }
        .hamburger {
            display: none;
            font-size: 1.8rem;
            cursor: pointer;
            color: white;
        }
        .breadcrumb {
            background-color: #eef2f7;
            padding: 1rem 20px;
            font-size: 0.9rem;
            border-bottom: 1px solid #dce1e8;
        }
        .breadcrumb a { color: #555; }
        .breadcrumb span { color: #888; }
        .hero {
            background: linear-gradient(rgba(106, 17, 203, 0.85), rgba(37, 117, 252, 0.85)), url('https://images.unsplash.com/photo-1518709268805-4e9042af2176?ixlib=rb-4.0.3&auto=format&fit=crop&w=1600&q=80') center/cover no-repeat;
            color: white;
            padding: 5rem 20px;
            text-align: center;
            border-radius: 0 0 20px 20px;
            margin-bottom: 3rem;
        }
        h1 {
            font-size: 3.2rem;
            margin-bottom: 1.5rem;
            line-height: 1.2;
            text-shadow: 1px 1px 3px rgba(0,0,0,0.5);
        }
        .hero-subtitle {
            font-size: 1.4rem;
            max-width: 800px;
            margin: 0 auto 2rem;
            opacity: 0.95;
        }
        main { padding: 0 20px 60px; }
        article { background: white; border-radius: 15px; padding: 3rem; box-shadow: 0 10px 30px rgba(0,0,0,0.05); margin-bottom: 3rem; }
        h2 { color: #1a1a2e; font-size: 2.4rem; margin: 3rem 0 1.5rem; padding-bottom: 0.5rem; border-bottom: 3px solid #6a11cb; }
        h3 { color: #16213e; font-size: 1.9rem; margin: 2.5rem 0 1rem; }
        h4 { color: #2575fc; font-size: 1.5rem; margin: 2rem 0 1rem; }
        p { margin-bottom: 1.5rem; font-size: 1.1rem; }
        .highlight-box {
            background: linear-gradient(135deg, #fdfcfb 0%, #f5f7fa 100%);
            border-left: 5px solid #6a11cb;
            padding: 1.5rem;
            margin: 2rem 0;
            border-radius: 0 8px 8px 0;
        }
        .feature-img {
            width: 100%;
            border-radius: 12px;
            box-shadow: 0 15px 35px rgba(0,0,0,0.1);
            margin: 2.5rem auto;
            border: 1px solid #eee;
        }
        .emoji { font-size: 1.3em; margin-right: 5px; }
        .content-link {
            font-weight: 600;
            border-bottom: 1px dashed #6a11cb;
        }
        .interactive-module {
            background: #f8f9fa;
            border-radius: 12px;
            padding: 2.5rem;
            margin: 3rem 0;
            border: 1px solid #e9ecef;
        }
        .module-title { font-size: 1.8rem; color: #1a1a2e; margin-bottom: 1.5rem; }
        .form-group { margin-bottom: 1.5rem; }
        label { display: block; margin-bottom: 0.5rem; font-weight: 600; }
        input, textarea, select {
            width: 100%;
            padding: 0.9rem 1.2rem;
            border: 2px solid #ced4da;
            border-radius: 8px;
            font-size: 1rem;
            transition: border 0.3s;
        }
        input:focus, textarea:focus, select:focus {
            outline: none;
            border-color: #6a11cb;
            box-shadow: 0 0 0 3px rgba(106, 17, 203, 0.2);
        }
        .btn {
            display: inline-block;
            background: linear-gradient(90deg, #6a11cb, #2575fc);
            color: white;
            padding: 0.9rem 2.2rem;
            border: none;
            border-radius: 50px;
            font-weight: 700;
            font-size: 1.1rem;
            cursor: pointer;
            transition: transform 0.3s, box-shadow 0.3s;
        }
        .btn:hover {
            transform: translateY(-3px);
            box-shadow: 0 7px 14px rgba(106, 17, 203, 0.3);
        }
        .star-rating { display: flex; gap: 10px; margin: 1rem 0; }
        .star-rating input { display: none; }
        .star-rating label { font-size: 2rem; color: #ddd; cursor: pointer; }
        .star-rating input:checked ~ label, .star-rating label:hover, .star-rating label:hover ~ label { color: #ffd93d; }
        footer {
            background: #1a1a2e;
            color: #ccc;
            padding: 3rem 20px 1.5rem;
            border-top: 5px solid #6a11cb;
        }
        .footer-content {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 2.5rem;
            margin-bottom: 2.5rem;
        }
        .footer-section h3 { color: #fff; font-size: 1.5rem; margin-bottom: 1.2rem; border-bottom: 2px solid #6a11cb; padding-bottom: 0.5rem; }
        friend-link {
            display: block;
            background: rgba(255,255,255,0.05);
            padding: 1rem;
            margin-bottom: 0.8rem;
            border-radius: 6px;
            border-left: 3px solid #2575fc;
            transition: background 0.3s;
        }
        friend-link:hover { background: rgba(255,255,255,0.1); }
        friend-link a { color: #a3c4ff; }
        .copyright {
            text-align: center;
            padding-top: 1.5rem;
            border-top: 1px solid #2d3748;
            font-size: 0.9rem;
            color: #888;
        }
        @media (max-width: 992px) {
            h1 { font-size: 2.7rem; }
            h2 { font-size: 2.1rem; }
            article { padding: 2rem; }
        }
        @media (max-width: 768px) {
            .header-container { flex-wrap: wrap; }
            .hamburger { display: block; }
            .main-nav {
                width: 100%;
                max-height: 0;
                overflow: hidden;
                transition: max-height 0.4s ease;
            }
            .main-nav.active { max-height: 300px; margin-top: 1rem; }
            .main-nav ul { flex-direction: column; gap: 0; }
            .main-nav li { width: 100%; }
            .main-nav a { display: block; padding: 0.8rem 0; border-bottom: 1px solid rgba(255,255,255,0.1); }
            .hero { padding: 3rem 20px; }
            h1 { font-size: 2.2rem; }
            h2 { font-size: 1.9rem; }
            h3 { font-size: 1.6rem; }
            .footer-content { grid-template-columns: 1fr; }
        }
        @media (max-width: 480px) {
            .hero { padding: 2.5rem 15px; }
            h1 { font-size: 1.9rem; }
            .hero-subtitle { font-size: 1.1rem; }
            article { padding: 1.5rem; }
            .interactive-module { padding: 1.5rem; }
        }