* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            background-color: #f8f9fa;
            color: #333;
            line-height: 1.7;
            font-size: 1.05rem;
        }
        a {
            text-decoration: none;
            color: #3498db;
            transition: color 0.3s ease;
        }
        a:hover {
            color: #e74c3c;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        section {
            padding: 40px 0;
        }
        .section-title {
            font-size: 2.2rem;
            margin-bottom: 25px;
            color: #2c3e50;
            position: relative;
            padding-bottom: 10px;
        }
        .section-title::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 70px;
            height: 4px;
            background: linear-gradient(90deg, #e74c3c, #3498db);
            border-radius: 2px;
        }
        .site-header {
            background: linear-gradient(135deg, #2c3e50 0%, #1a1a2e 100%);
            color: white;
            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-size: 1.8rem;
            font-weight: 800;
            color: #fff;
            text-transform: uppercase;
            letter-spacing: 1px;
            background: linear-gradient(90deg, #f39c12, #e74c3c);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .my-logo:hover {
            opacity: 0.9;
        }
        .nav-desktop {
            display: flex;
            list-style: none;
            gap: 25px;
        }
        .nav-desktop a {
            color: #ecf0f1;
            font-weight: 600;
            padding: 8px 0;
            position: relative;
        }
        .nav-desktop a::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 0;
            height: 2px;
            background-color: #e74c3c;
            transition: width 0.3s ease;
        }
        .nav-desktop a:hover::after {
            width: 100%;
        }
        .hamburger {
            display: none;
            background: none;
            border: none;
            color: white;
            font-size: 1.8rem;
            cursor: pointer;
        }
        .nav-mobile {
            display: none;
            position: absolute;
            top: 100%;
            left: 0;
            width: 100%;
            background-color: #2c3e50;
            list-style: none;
            padding: 20px;
            flex-direction: column;
            gap: 15px;
            box-shadow: 0 5px 10px rgba(0,0,0,0.2);
        }
        .nav-mobile.active {
            display: flex;
        }
        .nav-mobile a {
            color: #ecf0f1;
            padding: 10px;
            border-bottom: 1px solid #34495e;
            display: block;
        }
        .nav-mobile a:hover {
            background-color: #34495e;
            border-radius: 5px;
        }
        .breadcrumb {
            background-color: #ecf0f1;
            padding: 12px 20px;
            font-size: 0.9rem;
            color: #7f8c8d;
        }
        .breadcrumb a {
            color: #3498db;
        }
        .hero {
            background: linear-gradient(rgba(44, 62, 80, 0.85), rgba(26, 26, 46, 0.9)), url('https://images.unsplash.com/photo-1550745165-9bc0b252726f?ixlib=rb-4.0.3&auto=format&fit=crop&w=1200&q=80') center/cover no-repeat;
            color: white;
            text-align: center;
            padding: 80px 20px;
        }
        .hero h1 {
            font-size: 3.2rem;
            margin-bottom: 20px;
            text-shadow: 2px 2px 4px rgba(0,0,0,0.5);
        }
        .hero p {
            font-size: 1.3rem;
            max-width: 800px;
            margin: 0 auto 30px;
            opacity: 0.95;
        }
        .main-content {
            background-color: white;
            padding: 40px;
            border-radius: 10px;
            box-shadow: 0 5px 15px rgba(0,0,0,0.05);
            margin: 30px auto;
        }
        .content-block {
            margin-bottom: 50px;
        }
        .content-block h2 {
            font-size: 1.8rem;
            color: #2c3e50;
            margin: 25px 0 15px;
            border-left: 5px solid #3498db;
            padding-left: 15px;
        }
        .content-block h3 {
            font-size: 1.5rem;
            color: #34495e;
            margin: 20px 0 10px;
        }
        .content-block h4 {
            font-size: 1.2rem;
            color: #7f8c8d;
            margin: 15px 0 8px;
        }
        .content-block p {
            margin-bottom: 18px;
            text-align: justify;
        }
        .content-block ul, .content-block ol {
            margin-left: 25px;
            margin-bottom: 18px;
        }
        .content-block li {
            margin-bottom: 8px;
        }
        .highlight {
            background-color: #fffde7;
            border-left: 4px solid #f39c12;
            padding: 20px;
            margin: 25px 0;
            border-radius: 0 5px 5px 0;
        }
        .feature-img {
            width: 100%;
            max-width: 800px;
            margin: 25px auto;
            border-radius: 8px;
            overflow: hidden;
            box-shadow: 0 8px 20px rgba(0,0,0,0.1);
        }
        .interactive-module {
            background-color: #f8f9fa;
            border: 1px solid #e0e0e0;
            border-radius: 10px;
            padding: 30px;
            margin: 40px 0;
        }
        .module-title {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.5rem;
            margin-bottom: 20px;
            color: #2c3e50;
        }
        .module-title i {
            color: #e74c3c;
        }
        form {
            display: grid;
            gap: 20px;
        }
        .form-group {
            display: flex;
            flex-direction: column;
        }
        label {
            margin-bottom: 8px;
            font-weight: 600;
            color: #444;
        }
        input, textarea, select {
            padding: 12px 15px;
            border: 1px solid #ccc;
            border-radius: 6px;
            font-size: 1rem;
            transition: border 0.3s;
        }
        input:focus, textarea:focus, select:focus {
            outline: none;
            border-color: #3498db;
            box-shadow: 0 0 0 2px rgba(52, 152, 219, 0.2);
        }
        button {
            background: linear-gradient(90deg, #3498db, #2ecc71);
            color: white;
            border: none;
            padding: 14px 25px;
            border-radius: 6px;
            font-size: 1.1rem;
            font-weight: 600;
            cursor: pointer;
            transition: transform 0.2s, box-shadow 0.2s;
        }
        button:hover {
            transform: translateY(-3px);
            box-shadow: 0 5px 15px rgba(52, 152, 219, 0.4);
        }
        .stars {
            display: flex;
            gap: 10px;
            font-size: 1.8rem;
            color: #f1c40f;
            cursor: pointer;
        }
        .stars i:hover {
            transform: scale(1.2);
        }
        .site-footer {
            background-color: #2c3e50;
            color: #ecf0f1;
            padding: 50px 0 20px;
        }
        .footer-container {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 40px;
            margin-bottom: 40px;
        }
        .footer-section h3 {
            font-size: 1.4rem;
            margin-bottom: 20px;
            color: #f39c12;
        }
        .footer-links {
            list-style: none;
        }
        .footer-links li {
            margin-bottom: 10px;
        }
        .footer-links a {
            color: #bdc3c7;
        }
        .footer-links a:hover {
            color: #f39c12;
            padding-left: 5px;
        }
        friend-link {
            display: inline-block;
            background-color: #34495e;
            color: #ecf0f1;
            padding: 8px 15px;
            margin: 5px;
            border-radius: 5px;
            font-size: 0.9rem;
        }
        friend-link:hover {
            background-color: #3498db;
        }
        .copyright {
            text-align: center;
            padding-top: 20px;
            border-top: 1px solid #34495e;
            font-size: 0.9rem;
            color: #95a5a6;
        }
        @media (max-width: 992px) {
            .hero h1 { font-size: 2.6rem; }
            .section-title { font-size: 1.9rem; }
        }
        @media (max-width: 768px) {
            .nav-desktop { display: none; }
            .hamburger { display: block; }
            .header-container { padding: 12px 15px; }
            .main-content { padding: 25px; }
            .hero { padding: 60px 20px; }
            .hero h1 { font-size: 2.2rem; }
            .hero p { font-size: 1.1rem; }
            .section-title { font-size: 1.7rem; }
            .content-block h2 { font-size: 1.6rem; }
        }
        @media (max-width: 576px) {
            .container { padding: 0 15px; }
            .hero h1 { font-size: 1.9rem; }
            .section-title { font-size: 1.5rem; }
            .interactive-module { padding: 20px; }
        }