* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
        }
        :root {
            --primary: #ff4655; 
            --secondary: #1c1c2e; 
            --accent: #00c2ff; 
            --light: #f5f5f7;
            --dark: #121220;
            --gray: #6c757d;
            --shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
            --transition: all 0.3s ease;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            background-color: var(--light);
            color: #333;
            line-height: 1.7;
            overflow-x: hidden;
        }
        a {
            text-decoration: none;
            color: inherit;
            transition: var(--transition);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        ul {
            list-style: none;
        }
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        .btn {
            display: inline-block;
            padding: 12px 28px;
            background: var(--primary);
            color: white;
            border: none;
            border-radius: 30px;
            font-weight: 600;
            cursor: pointer;
            transition: var(--transition);
            text-align: center;
        }
        .btn:hover {
            background: #e03a48;
            transform: translateY(-3px);
            box-shadow: var(--shadow);
        }
        .section-title {
            font-size: 2.5rem;
            margin-bottom: 1.5rem;
            color: var(--secondary);
            position: relative;
            padding-bottom: 15px;
        }
        .section-title::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 80px;
            height: 4px;
            background: var(--primary);
        }
        header {
            background: var(--secondary);
            color: white;
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: var(--shadow);
        }
        .header-container {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 15px 20px;
        }
        .logo a {
            font-size: 1.8rem;
            font-weight: 800;
            color: var(--primary);
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .logo i {
            color: var(--accent);
        }
        .nav-desktop ul {
            display: flex;
            gap: 25px;
        }
        .nav-desktop a {
            font-weight: 500;
            padding: 8px 0;
            position: relative;
        }
        .nav-desktop a:hover {
            color: var(--accent);
        }
        .nav-desktop a::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 0;
            height: 2px;
            background: var(--accent);
            transition: width 0.3s;
        }
        .nav-desktop a:hover::after {
            width: 100%;
        }
        .mobile-toggle {
            display: none;
            font-size: 1.5rem;
            cursor: pointer;
        }
        .nav-mobile {
            position: fixed;
            top: 70px;
            left: 0;
            width: 100%;
            background: var(--dark);
            padding: 20px;
            transform: translateY(-150%);
            transition: transform 0.5s ease;
            z-index: 999;
        }
        .nav-mobile.active {
            transform: translateY(0);
        }
        .nav-mobile ul {
            display: flex;
            flex-direction: column;
            gap: 15px;
        }
        .nav-mobile a {
            display: block;
            padding: 12px;
            border-bottom: 1px solid rgba(255,255,255,0.1);
        }
        .nav-mobile a:hover {
            background: rgba(255,255,255,0.05);
            color: var(--accent);
            padding-left: 20px;
        }
        .breadcrumb {
            background: #f8f9fa;
            padding: 12px 20px;
            border-bottom: 1px solid #dee2e6;
            font-size: 0.9rem;
        }
        .breadcrumb a {
            color: var(--primary);
        }
        .breadcrumb a:hover {
            text-decoration: underline;
        }
        .breadcrumb i {
            margin: 0 8px;
            color: var(--gray);
        }
        .search-bar {
            background: var(--light);
            padding: 40px 0;
            text-align: center;
        }
        .search-form {
            max-width: 600px;
            margin: 0 auto;
            display: flex;
            box-shadow: var(--shadow);
            border-radius: 50px;
            overflow: hidden;
        }
        .search-form input {
            flex: 1;
            padding: 18px 25px;
            border: none;
            font-size: 1rem;
            outline: none;
        }
        .search-form button {
            background: var(--primary);
            color: white;
            border: none;
            padding: 0 30px;
            cursor: pointer;
            font-size: 1.1rem;
        }
        .search-form button:hover {
            background: #e03a48;
        }
        main {
            padding: 40px 0;
        }
        .article-content {
            background: white;
            border-radius: 15px;
            padding: 40px;
            box-shadow: var(--shadow);
            margin-bottom: 40px;
        }
        h1 {
            font-size: 3.2rem;
            color: var(--secondary);
            margin-bottom: 1.5rem;
            line-height: 1.2;
        }
        h2 {
            font-size: 2.2rem;
            color: var(--secondary);
            margin: 2.5rem 0 1.2rem;
            padding-top: 10px;
        }
        h3 {
            font-size: 1.8rem;
            color: var(--secondary);
            margin: 2rem 0 1rem;
        }
        h4 {
            font-size: 1.4rem;
            color: var(--primary);
            margin: 1.5rem 0 0.8rem;
        }
        p {
            margin-bottom: 1.5rem;
            font-size: 1.1rem;
        }
        .lead {
            font-size: 1.3rem;
            color: var(--gray);
            font-weight: 500;
            margin-bottom: 2rem;
        }
        .highlight {
            background: linear-gradient(120deg, rgba(255,70,85,0.1) 0%, rgba(0,194,255,0.1) 100%);
            border-left: 5px solid var(--primary);
            padding: 25px;
            margin: 2rem 0;
            border-radius: 0 10px 10px 0;
        }
        .quote {
            font-style: italic;
            font-size: 1.3rem;
            color: var(--secondary);
            text-align: center;
            padding: 30px;
            margin: 3rem 0;
            background: #f8f9fa;
            border-radius: 15px;
            position: relative;
        }
        .quote::before, .quote::after {
            content: '"';
            font-size: 4rem;
            color: var(--primary);
            opacity: 0.3;
            position: absolute;
        }
        .quote::before {
            top: 10px;
            left: 20px;
        }
        .quote::after {
            bottom: -20px;
            right: 20px;
        }
        .stats-box {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 20px;
            margin: 3rem 0;
        }
        .stat {
            background: var(--secondary);
            color: white;
            padding: 25px;
            border-radius: 10px;
            text-align: center;
            box-shadow: var(--shadow);
        }
        .stat .number {
            font-size: 3rem;
            font-weight: 800;
            color: var(--accent);
            display: block;
            line-height: 1;
        }
        .feature-img {
            width: 100%;
            border-radius: 15px;
            margin: 2.5rem 0;
            box-shadow: var(--shadow);
        }
        .link-inline {
            color: var(--primary);
            font-weight: 600;
            border-bottom: 2px dotted var(--primary);
        }
        .link-inline:hover {
            color: #e03a48;
            border-bottom-style: solid;
        }
        .emoji {
            font-size: 1.2em;
            margin: 0 5px;
        }
        .user-interaction {
            margin-top: 50px;
            border-top: 2px solid #eee;
            padding-top: 40px;
        }
        .interaction-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 30px;
        }
        .comment-box, .rating-box {
            background: #f8f9fa;
            padding: 30px;
            border-radius: 15px;
            box-shadow: var(--shadow);
        }
        .comment-box h3, .rating-box h3 {
            margin-top: 0;
            color: var(--primary);
        }
        .form-group {
            margin-bottom: 20px;
        }
        .form-group label {
            display: block;
            margin-bottom: 8px;
            font-weight: 600;
            color: var(--secondary);
        }
        .form-group input,
        .form-group textarea,
        .form-group select {
            width: 100%;
            padding: 12px 15px;
            border: 1px solid #ced4da;
            border-radius: 8px;
            font-size: 1rem;
            transition: var(--transition);
        }
        .form-group input:focus,
        .form-group textarea:focus,
        .form-group select:focus {
            outline: none;
            border-color: var(--accent);
            box-shadow: 0 0 0 3px rgba(0,194,255,0.2);
        }
        .stars {
            display: flex;
            gap: 10px;
            margin: 15px 0;
        }
        .star {
            font-size: 2rem;
            color: #ddd;
            cursor: pointer;
            transition: var(--transition);
        }
        .star:hover,
        .star.active {
            color: #ffc107;
        }
        footer {
            background: var(--secondary);
            color: white;
            padding: 50px 0 20px;
        }
        .footer-content {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 40px;
            margin-bottom: 40px;
        }
        .footer-logo {
            font-size: 2rem;
            font-weight: 800;
            color: var(--primary);
            margin-bottom: 15px;
        }
        .footer-about p {
            color: #b0b7c3;
            margin-bottom: 20px;
        }
        .friend-links h4, .footer-contact h4 {
            font-size: 1.3rem;
            color: var(--accent);
            margin-bottom: 20px;
        }
        friend-link {
            display: block;
            margin-bottom: 10px;
        }
        friend-link a {
            color: #b0b7c3;
        }
        friend-link a:hover {
            color: var(--accent);
            padding-left: 5px;
        }
        .copyright {
            text-align: center;
            padding-top: 20px;
            border-top: 1px solid rgba(255,255,255,0.1);
            color: #b0b7c3;
            font-size: 0.9rem;
        }
        @media (max-width: 992px) {
            h1 { font-size: 2.7rem; }
            h2 { font-size: 2rem; }
            .section-title { font-size: 2rem; }
        }
        @media (max-width: 768px) {
            .mobile-toggle {
                display: block;
            }
            .nav-desktop {
                display: none;
            }
            .header-container {
                padding: 12px 20px;
            }
            .article-content {
                padding: 25px;
            }
            h1 { font-size: 2.3rem; }
            h2 { font-size: 1.8rem; }
            h3 { font-size: 1.5rem; }
            .search-form {
                flex-direction: column;
                border-radius: 15px;
            }
            .search-form input, .search-form button {
                width: 100%;
                border-radius: 0;
                padding: 15px;
            }
        }
        @media (max-width: 480px) {
            .container {
                padding: 0 15px;
            }
            h1 { font-size: 2rem; }
            .lead { font-size: 1.1rem; }
            .btn { padding: 10px 20px; }
        }