* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
        }
        body {
            background: linear-gradient(135deg, #1a1a2e 0%, #16213e 100%);
            color: #e0e0e0;
            line-height: 1.7;
            overflow-x: hidden;
        }
        a {
            text-decoration: none;
            color: #4cc9f0;
            transition: all 0.3s ease;
        }
        a:hover {
            color: #f72585;
            text-shadow: 0 0 8px rgba(247, 37, 133, 0.5);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: 12px;
        }
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        .btn {
            display: inline-block;
            padding: 12px 28px;
            background: linear-gradient(90deg, #4361ee, #3a0ca3);
            color: white;
            border-radius: 50px;
            font-weight: 600;
            border: none;
            cursor: pointer;
            transition: transform 0.3s, box-shadow 0.3s;
        }
        .btn:hover {
            transform: translateY(-3px);
            box-shadow: 0 10px 20px rgba(67, 97, 238, 0.3);
        }
        .top-bar {
            background: rgba(0, 0, 0, 0.9);
            padding: 15px 0;
            border-bottom: 2px solid #4361ee;
            position: sticky;
            top: 0;
            z-index: 1000;
            backdrop-filter: blur(10px);
        }
        .header-content {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .my-logo {
            font-size: 2.2rem;
            font-weight: 900;
            background: linear-gradient(90deg, #f72585, #4cc9f0);
            -webkit-background-clip: text;
            background-clip: text;
            color: transparent;
            text-shadow: 0 2px 10px rgba(76, 201, 240, 0.3);
        }
        .my-logo:hover {
            animation: logoGlow 1s infinite alternate;
        }
        @keyframes logoGlow {
            from { text-shadow: 0 2px 10px rgba(76, 201, 240, 0.3); }
            to { text-shadow: 0 2px 20px rgba(247, 37, 133, 0.7); }
        }
        .nav-desktop {
            display: flex;
            gap: 30px;
        }
        .nav-desktop a {
            font-weight: 600;
            padding: 8px 0;
            position: relative;
        }
        .nav-desktop a::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 0;
            height: 2px;
            background: #f72585;
            transition: width 0.3s;
        }
        .nav-desktop a:hover::after {
            width: 100%;
        }
        .hamburger {
            display: none;
            font-size: 1.8rem;
            cursor: pointer;
            color: #4cc9f0;
        }
        .nav-mobile {
            display: none;
            flex-direction: column;
            background: rgba(26, 26, 46, 0.98);
            position: absolute;
            top: 100%;
            left: 0;
            width: 100%;
            padding: 20px;
            border-top: 1px solid #4361ee;
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
        }
        .nav-mobile.active {
            display: flex;
        }
        .nav-mobile a {
            padding: 15px;
            border-bottom: 1px solid #333;
            font-size: 1.1rem;
        }
        .nav-mobile a:last-child {
            border-bottom: none;
        }
        .breadcrumb {
            padding: 15px 0;
            font-size: 0.9rem;
            color: #aaa;
        }
        .breadcrumb a {
            color: #aaa;
        }
        .breadcrumb a:hover {
            color: #4cc9f0;
        }
        main {
            padding: 40px 0;
        }
        .article-grid {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 40px;
        }
        @media (max-width: 992px) {
            .article-grid {
                grid-template-columns: 1fr;
            }
        }
        .article-content {
            background: rgba(255, 255, 255, 0.05);
            padding: 40px;
            border-radius: 20px;
            box-shadow: 0 15px 35px rgba(0, 0, 0, 0.5);
            backdrop-filter: blur(5px);
        }
        .sidebar {
            background: rgba(255, 255, 255, 0.05);
            padding: 25px;
            border-radius: 15px;
            align-self: start;
            position: sticky;
            top: 120px;
        }
        h1 {
            font-size: 3.5rem;
            color: #4cc9f0;
            margin-bottom: 25px;
            text-align: center;
            line-height: 1.2;
        }
        h2 {
            font-size: 2.5rem;
            color: #f72585;
            margin: 40px 0 20px;
            padding-bottom: 10px;
            border-bottom: 3px solid #4361ee;
        }
        h3 {
            font-size: 1.8rem;
            color: #7209b7;
            margin: 30px 0 15px;
        }
        h4 {
            font-size: 1.4rem;
            color: #3a0ca3;
            margin: 20px 0 10px;
        }
        p {
            margin-bottom: 25px;
            font-size: 1.1rem;
            text-align: justify;
        }
        .highlight {
            background: linear-gradient(90deg, rgba(67, 97, 238, 0.2), transparent);
            padding: 20px;
            border-left: 5px solid #4361ee;
            margin: 25px 0;
            border-radius: 0 10px 10px 0;
        }
        .emoji {
            font-size: 1.5rem;
            margin-right: 10px;
            vertical-align: middle;
        }
        strong {
            color: #4cc9f0;
            font-weight: 700;
        }
        .feature-img {
            margin: 30px auto;
            max-width: 800px;
            box-shadow: 0 20px 40px rgba(0, 0, 0, 0.7);
            border: 3px solid #3a0ca3;
        }
        .feature-img:hover {
            transform: scale(1.02);
            transition: transform 0.5s;
        }
        .form-section {
            background: rgba(255, 255, 255, 0.05);
            padding: 30px;
            border-radius: 15px;
            margin: 40px 0;
        }
        .form-title {
            color: #4cc9f0;
            margin-bottom: 20px;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .form-group {
            margin-bottom: 20px;
        }
        .form-group label {
            display: block;
            margin-bottom: 8px;
            color: #aaa;
        }
        .form-control {
            width: 100%;
            padding: 15px;
            background: rgba(255, 255, 255, 0.1);
            border: 1px solid #4361ee;
            border-radius: 10px;
            color: white;
            font-size: 1rem;
            transition: border 0.3s;
        }
        .form-control:focus {
            outline: none;
            border-color: #f72585;
            box-shadow: 0 0 10px rgba(247, 37, 133, 0.5);
        }
        .star-rating {
            display: flex;
            gap: 10px;
            font-size: 2rem;
            color: #ffd700;
            cursor: pointer;
        }
        .star-rating i:hover {
            transform: scale(1.2);
        }
        footer {
            background: rgba(0, 0, 0, 0.9);
            padding: 50px 0 20px;
            margin-top: 60px;
            border-top: 2px solid #4361ee;
        }
        .footer-content {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 40px;
            margin-bottom: 40px;
        }
        friend-link {
            display: block;
            margin: 10px 0;
            font-size: 1.1rem;
        }
        .copyright {
            text-align: center;
            padding-top: 20px;
            border-top: 1px solid #333;
            color: #888;
            font-size: 0.9rem;
        }
        @media (max-width: 768px) {
            h1 { font-size: 2.5rem; }
            h2 { font-size: 2rem; }
            .nav-desktop { display: none; }
            .hamburger { display: block; }
            .article-content { padding: 25px; }
            .header-content { flex-wrap: wrap; }
        }
        @keyframes fadeIn {
            from { opacity: 0; transform: translateY(20px); }
            to { opacity: 1; transform: translateY(0); }
        }
        .article-content > * {
            animation: fadeIn 0.8s ease-out;
        }