* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            background-color: #0f1419;
            color: #e0e0e0;
            line-height: 1.7;
            display: flex;
            flex-direction: column;
            min-height: 100vh;
        }
        a {
            color: #4dabf7;
            text-decoration: none;
            transition: color 0.3s ease, transform 0.2s ease;
        }
        a:hover {
            color: #74c0fc;
            transform: translateY(-2px);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: 8px;
        }
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        .text-center { text-align: center; }
        .mb-1 { margin-bottom: 1rem; }
        .mb-2 { margin-bottom: 2rem; }
        .mb-3 { margin-bottom: 3rem; }
        .mt-2 { margin-top: 2rem; }
        .p-2 { padding: 2rem; }
        .highlight {
            background: linear-gradient(90deg, #1c7ed6, #15aabf);
            -webkit-background-clip: text;
            background-clip: text;
            color: transparent;
            font-weight: bold;
        }
        .btn {
            display: inline-block;
            padding: 12px 24px;
            background: linear-gradient(135deg, #1c7ed6, #1098ad);
            color: white;
            border-radius: 50px;
            font-weight: bold;
            border: none;
            cursor: pointer;
            transition: all 0.3s ease;
            text-align: center;
        }
        .btn:hover {
            background: linear-gradient(135deg, #1971c2, #0c8599);
            transform: scale(1.05);
            box-shadow: 0 5px 15px rgba(28, 126, 214, 0.4);
        }
        .section-title {
            font-size: 2.5rem;
            margin-bottom: 1.5rem;
            position: relative;
            padding-bottom: 10px;
        }
        .section-title::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 80px;
            height: 4px;
            background: linear-gradient(90deg, #1c7ed6, #15aabf);
            border-radius: 2px;
        }
        header {
            background: rgba(15, 20, 25, 0.95);
            backdrop-filter: blur(10px);
            border-bottom: 1px solid #2d3748;
            position: sticky;
            top: 0;
            z-index: 1000;
            padding: 15px 0;
        }
        .header-content {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .my-logo {
            font-size: 2.2rem;
            font-weight: 900;
            background: linear-gradient(45deg, #ff6b6b, #4dabf7);
            -webkit-background-clip: text;
            background-clip: text;
            color: transparent;
            letter-spacing: 1px;
        }
        .my-logo:hover {
            animation: logo-pulse 0.5s ease;
        }
        @keyframes logo-pulse {
            0% { transform: scale(1); }
            50% { transform: scale(1.05); }
            100% { transform: scale(1); }
        }
        nav ul {
            display: flex;
            list-style: none;
            gap: 30px;
        }
        nav a {
            color: #cbd5e0;
            font-weight: 600;
            font-size: 1.1rem;
            padding: 8px 0;
            position: relative;
        }
        nav a::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 0;
            height: 2px;
            background: #4dabf7;
            transition: width 0.3s ease;
        }
        nav a:hover::after {
            width: 100%;
        }
        .hamburger {
            display: none;
            font-size: 1.8rem;
            background: none;
            border: none;
            color: #cbd5e0;
            cursor: pointer;
        }
        .breadcrumb {
            padding: 15px 0;
            background: #1a202c;
            font-size: 0.9rem;
        }
        .breadcrumb ol {
            display: flex;
            list-style: none;
            flex-wrap: wrap;
            gap: 10px;
        }
        .breadcrumb li:not(:last-child)::after {
            content: '/';
            margin-left: 10px;
            color: #718096;
        }
        main {
            flex: 1;
            padding: 40px 0;
        }
        .hero {
            text-align: center;
            padding: 60px 20px;
            background: radial-gradient(circle at center, #1e293b, #0f1419);
            border-radius: 15px;
            margin-bottom: 40px;
            border: 1px solid #334155;
        }
        .hero h1 {
            font-size: 3.5rem;
            margin-bottom: 20px;
            line-height: 1.2;
        }
        .hero p {
            font-size: 1.3rem;
            max-width: 800px;
            margin: 0 auto 30px;
            color: #a0aec0;
        }
        .last-updated {
            font-size: 0.9rem;
            color: #94a3b8;
            font-style: italic;
            margin-top: 20px;
        }
        .content-section {
            margin-bottom: 50px;
            padding: 30px;
            background: #1a202c;
            border-radius: 12px;
            border-left: 5px solid #4dabf7;
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
        }
        .content-section h2 {
            font-size: 2.2rem;
            margin-bottom: 20px;
        }
        .content-section h3 {
            font-size: 1.8rem;
            margin: 25px 0 15px;
            color: #90cdf4;
        }
        .content-section h4 {
            font-size: 1.4rem;
            margin: 20px 0 10px;
            color: #b3d9ff;
        }
        .content-section p {
            margin-bottom: 20px;
            font-size: 1.1rem;
            text-align: justify;
        }
        .content-section ul, .content-section ol {
            margin-left: 30px;
            margin-bottom: 20px;
        }
        .content-section li {
            margin-bottom: 10px;
        }
        .content-img {
            margin: 30px auto;
            max-width: 900px;
            border: 3px solid #334155;
            box-shadow: 0 10px 25px rgba(0, 0, 0, 0.5);
        }
        .img-caption {
            text-align: center;
            font-style: italic;
            color: #94a3b8;
            margin-top: 10px;
        }
        .interactive-box {
            background: #1e293b;
            border-radius: 10px;
            padding: 30px;
            margin: 40px 0;
            border: 1px solid #4dabf7;
        }
        .interactive-box h3 {
            margin-top: 0;
        }
        .search-form, .comment-form, .rating-form {
            display: grid;
            gap: 20px;
            margin-top: 20px;
        }
        .form-group {
            display: flex;
            flex-direction: column;
        }
        .form-group label {
            margin-bottom: 8px;
            font-weight: 600;
        }
        .form-control {
            padding: 15px;
            border-radius: 8px;
            border: 1px solid #4a5568;
            background: #2d3748;
            color: #e2e8f0;
            font-size: 1rem;
            transition: border 0.3s ease;
        }
        .form-control:focus {
            outline: none;
            border-color: #4dabf7;
            box-shadow: 0 0 0 3px rgba(77, 171, 247, 0.2);
        }
        .star-rating {
            display: flex;
            justify-content: center;
            gap: 10px;
            font-size: 2rem;
            margin: 15px 0;
        }
        .star-rating input {
            display: none;
        }
        .star-rating label {
            color: #4a5568;
            cursor: pointer;
            transition: color 0.2s;
        }
        .star-rating input:checked ~ label,
        .star-rating input:hover ~ label {
            color: #ffd700;
        }
        .star-rating label:hover {
            color: #ffed85;
        }
        .related-links {
            background: #1e293b;
            padding: 25px;
            border-radius: 12px;
            margin: 40px 0;
        }
        .related-links h3 {
            color: #90cdf4;
            margin-bottom: 20px;
        }
        .related-links ul {
            list-style: none;
            margin-left: 0;
        }
        .related-links li {
            margin-bottom: 15px;
            padding-left: 20px;
            position: relative;
        }
        .related-links li::before {
            content: '▶';
            position: absolute;
            left: 0;
            color: #4dabf7;
            font-size: 0.8rem;
        }
        footer {
            background: #0d1117;
            padding: 50px 0 20px;
            margin-top: 60px;
            border-top: 1px solid #2d3748;
        }
        .footer-content {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 40px;
            margin-bottom: 40px;
        }
        .footer-section h4 {
            font-size: 1.3rem;
            margin-bottom: 20px;
            color: #90cdf4;
        }
        friend-link {
            display: block;
            margin-bottom: 10px;
            padding: 10px 15px;
            background: #1a202c;
            border-radius: 6px;
            transition: background 0.3s ease;
        }
        friend-link:hover {
            background: #2d3748;
        }
        .copyright {
            text-align: center;
            padding-top: 20px;
            border-top: 1px solid #2d3748;
            color: #94a3b8;
            font-size: 0.9rem;
        }
        @media (max-width: 992px) {
            .hero h1 { font-size: 2.8rem; }
            .section-title { font-size: 2.2rem; }
            .content-section h2 { font-size: 2rem; }
            .content-section h3 { font-size: 1.6rem; }
        }
        @media (max-width: 768px) {
            .header-content { flex-wrap: wrap; }
            nav ul {
                display: none;
                flex-direction: column;
                width: 100%;
                background: #1a202c;
                position: absolute;
                top: 100%;
                left: 0;
                padding: 20px;
                border-top: 1px solid #2d3748;
                box-shadow: 0 10px 15px rgba(0,0,0,0.2);
            }
            nav ul.active { display: flex; }
            .hamburger { display: block; }
            .hero { padding: 40px 20px; }
            .hero h1 { font-size: 2.3rem; }
            .hero p { font-size: 1.1rem; }
            .section-title { font-size: 2rem; }
            .content-section { padding: 20px; }
            .content-section h2 { font-size: 1.8rem; }
            .content-section h3 { font-size: 1.5rem; }
            .footer-content { grid-template-columns: 1fr; }
        }
        @media (max-width: 480px) {
            .hero h1 { font-size: 1.9rem; }
            .btn { padding: 10px 20px; }
            .star-rating { font-size: 1.7rem; }
        }