:root {
            --primary: #00B2FF;
            --secondary: #FF4655;
            --accent: #FFD700;
            --dark: #1A1A2E;
            --light: #F5F5F7;
            --gray: #8A8A9E;
            --transition: all 0.3s ease;
            --shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
            --border-radius: 12px;
            --max-width: 1200px;
        }
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
            font-size: 16px;
        }
        body {
            font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
            line-height: 1.8;
            color: #333;
            background: linear-gradient(135deg, #0f0c29 0%, #302b63 50%, #24243e 100%);
            background-attachment: fixed;
            min-height: 100vh;
            overflow-x: hidden;
        }
        .container {
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 20px;
        }
        header {
            background: rgba(26, 26, 46, 0.95);
            backdrop-filter: blur(10px);
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: 0 5px 20px rgba(0, 0, 0, 0.3);
            border-bottom: 3px solid var(--primary);
        }
        .header-container {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 1rem 0;
        }
        .my-logo {
            font-family: 'Arial Black', sans-serif;
            font-size: 2.2rem;
            background: linear-gradient(45deg, var(--primary), var(--accent));
            -webkit-background-clip: text;
            background-clip: text;
            color: transparent;
            text-decoration: none;
            text-shadow: 0 2px 10px rgba(0, 178, 255, 0.3);
            transition: var(--transition);
            letter-spacing: 1px;
        }
        .my-logo:hover {
            transform: scale(1.05);
            text-shadow: 0 2px 20px rgba(0, 178, 255, 0.5);
        }
        .my-logo i {
            color: var(--accent);
            margin-right: 8px;
        }
        nav ul {
            display: flex;
            list-style: none;
            gap: 2rem;
        }
        nav a {
            color: var(--light);
            text-decoration: none;
            font-weight: 600;
            font-size: 1.1rem;
            padding: 0.5rem 1rem;
            border-radius: var(--border-radius);
            transition: var(--transition);
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }
        nav a:hover {
            background: var(--primary);
            color: white;
            transform: translateY(-2px);
        }
        .hamburger {
            display: none;
            flex-direction: column;
            cursor: pointer;
            gap: 4px;
            padding: 10px;
        }
        .hamburger span {
            width: 25px;
            height: 3px;
            background: var(--primary);
            border-radius: 2px;
            transition: var(--transition);
        }
        .breadcrumb {
            background: rgba(255, 255, 255, 0.05);
            padding: 1rem 0;
            margin-bottom: 2rem;
            border-bottom: 1px solid rgba(255, 255, 255, 0.1);
        }
        .breadcrumb ul {
            display: flex;
            list-style: none;
            gap: 0.5rem;
            flex-wrap: wrap;
        }
        .breadcrumb a {
            color: var(--gray);
            text-decoration: none;
            transition: var(--transition);
        }
        .breadcrumb a:hover {
            color: var(--primary);
        }
        .breadcrumb li:not(:last-child)::after {
            content: "›";
            margin-left: 0.5rem;
            color: var(--gray);
        }
        main {
            background: rgba(255, 255, 255, 0.97);
            border-radius: var(--border-radius);
            box-shadow: var(--shadow);
            margin: 2rem auto;
            padding: 3rem;
            position: relative;
            overflow: hidden;
        }
        main::before {
            content: "";
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 5px;
            background: linear-gradient(90deg, var(--primary), var(--secondary), var(--accent));
        }
        h1 {
            font-size: 3.5rem;
            background: linear-gradient(45deg, var(--primary), var(--secondary));
            -webkit-background-clip: text;
            background-clip: text;
            color: transparent;
            margin-bottom: 1.5rem;
            line-height: 1.2;
            text-align: center;
            text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.1);
        }
        h2 {
            font-size: 2.5rem;
            color: var(--dark);
            margin: 3rem 0 1.5rem;
            padding-bottom: 0.5rem;
            border-bottom: 3px solid var(--primary);
            position: relative;
        }
        h2::after {
            content: "⚡";
            position: absolute;
            right: 0;
            color: var(--accent);
        }
        h3 {
            font-size: 1.8rem;
            color: var(--secondary);
            margin: 2.5rem 0 1rem;
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }
        h3::before {
            content: "▶";
            color: var(--primary);
            font-size: 1rem;
        }
        h4 {
            font-size: 1.4rem;
            color: var(--dark);
            margin: 2rem 0 1rem;
            padding-left: 1rem;
            border-left: 4px solid var(--accent);
        }
        p {
            margin-bottom: 1.5rem;
            text-align: justify;
            font-size: 1.1rem;
        }
        .highlight {
            background: linear-gradient(120deg, rgba(0, 178, 255, 0.1) 0%, rgba(255, 70, 85, 0.1) 100%);
            padding: 2rem;
            border-radius: var(--border-radius);
            margin: 2rem 0;
            border-left: 5px solid var(--primary);
        }
        .highlight strong {
            color: var(--secondary);
            font-size: 1.2em;
        }
        .quote {
            font-style: italic;
            font-size: 1.3rem;
            color: var(--dark);
            padding: 2rem;
            background: rgba(255, 214, 0, 0.1);
            border-radius: var(--border-radius);
            margin: 2rem 0;
            position: relative;
        }
        .quote::before,
        .quote::after {
            content: '"';
            font-size: 4rem;
            color: var(--accent);
            opacity: 0.3;
            position: absolute;
        }
        .quote::before {
            top: -10px;
            left: 10px;
        }
        .quote::after {
            bottom: -30px;
            right: 10px;
        }
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 1.5rem;
            margin: 2rem 0;
        }
        .stat-card {
            background: white;
            padding: 1.5rem;
            border-radius: var(--border-radius);
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
            text-align: center;
            transition: var(--transition);
            border: 2px solid transparent;
        }
        .stat-card:hover {
            transform: translateY(-5px);
            border-color: var(--primary);
            box-shadow: 0 10px 25px rgba(0, 178, 255, 0.2);
        }
        .stat-number {
            font-size: 2.5rem;
            font-weight: bold;
            background: linear-gradient(45deg, var(--primary), var(--secondary));
            -webkit-background-clip: text;
            background-clip: text;
            color: transparent;
            margin-bottom: 0.5rem;
        }
        .feature-image {
            width: 100%;
            max-width: 800px;
            height: auto;
            border-radius: var(--border-radius);
            margin: 2rem auto;
            display: block;
            box-shadow: var(--shadow);
            transition: var(--transition);
            border: 5px solid white;
        }
        .feature-image:hover {
            transform: scale(1.02);
            box-shadow: 0 15px 40px rgba(0, 0, 0, 0.2);
        }
        .interactive-section {
            background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
            color: white;
            padding: 3rem;
            border-radius: var(--border-radius);
            margin: 3rem 0;
            text-align: center;
        }
        .search-box {
            max-width: 600px;
            margin: 2rem auto;
            position: relative;
        }
        .search-box input {
            width: 100%;
            padding: 1.2rem 3rem 1.2rem 1.5rem;
            border: none;
            border-radius: 50px;
            font-size: 1.1rem;
            box-shadow: 0 5px 20px rgba(0, 0, 0, 0.1);
        }
        .search-box button {
            position: absolute;
            right: 10px;
            top: 50%;
            transform: translateY(-50%);
            background: var(--primary);
            color: white;
            border: none;
            padding: 0.8rem 1.5rem;
            border-radius: 50px;
            cursor: pointer;
            transition: var(--transition);
        }
        .search-box button:hover {
            background: var(--secondary);
            transform: translateY(-50%) scale(1.05);
        }
        .rating-system {
            display: flex;
            justify-content: center;
            gap: 0.5rem;
            margin: 2rem 0;
        }
        .rating-star {
            font-size: 2rem;
            color: #ddd;
            cursor: pointer;
            transition: var(--transition);
        }
        .rating-star:hover,
        .rating-star.active {
            color: var(--accent);
            transform: scale(1.2);
        }
        .comment-form {
            background: white;
            padding: 2rem;
            border-radius: var(--border-radius);
            box-shadow: var(--shadow);
            margin: 2rem 0;
        }
        .form-group {
            margin-bottom: 1.5rem;
        }
        .form-group label {
            display: block;
            margin-bottom: 0.5rem;
            font-weight: 600;
            color: var(--dark);
        }
        .form-group input,
        .form-group textarea,
        .form-group select {
            width: 100%;
            padding: 1rem;
            border: 2px solid #e0e0e0;
            border-radius: var(--border-radius);
            font-size: 1rem;
            transition: var(--transition);
        }
        .form-group input:focus,
        .form-group textarea:focus,
        .form-group select:focus {
            border-color: var(--primary);
            outline: none;
            box-shadow: 0 0 0 3px rgba(0, 178, 255, 0.1);
        }
        .btn {
            background: linear-gradient(45deg, var(--primary), var(--secondary));
            color: white;
            border: none;
            padding: 1rem 2rem;
            border-radius: 50px;
            font-size: 1.1rem;
            font-weight: 600;
            cursor: pointer;
            transition: var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
        }
        .btn:hover {
            transform: translateY(-3px);
            box-shadow: 0 10px 25px rgba(0, 178, 255, 0.3);
        }
        footer {
            background: var(--dark);
            color: var(--light);
            padding: 3rem 0 1.5rem;
            margin-top: 3rem;
            border-top: 3px solid var(--primary);
        }
        .footer-content {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 2rem;
            margin-bottom: 2rem;
        }
        .footer-section h3 {
            color: var(--light);
            margin-bottom: 1.5rem;
            border-bottom: 2px solid var(--primary);
            padding-bottom: 0.5rem;
        }
        friend-link {
            display: block;
            color: var(--gray);
            text-decoration: none;
            margin-bottom: 0.8rem;
            transition: var(--transition);
            padding: 0.5rem;
            border-radius: var(--border-radius);
        }
        friend-link:hover {
            color: var(--primary);
            background: rgba(255, 255, 255, 0.05);
            padding-left: 1rem;
        }
        .copyright {
            text-align: center;
            padding-top: 1.5rem;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            color: var(--gray);
            font-size: 0.9rem;
        }
        .update-time {
            text-align: center;
            color: var(--gray);
            font-size: 0.9rem;
            margin: 1rem 0;
            background: rgba(255, 255, 255, 0.05);
            padding: 0.5rem;
            border-radius: var(--border-radius);
        }
        @media (max-width: 992px) {
            h1 { font-size: 2.8rem; }
            h2 { font-size: 2.2rem; }
            h3 { font-size: 1.6rem; }
            main { padding: 2rem; }
        }
        @media (max-width: 768px) {
            .hamburger { display: flex; }
            nav {
                position: fixed;
                top: 80px;
                left: 0;
                width: 100%;
                background: var(--dark);
                padding: 1rem;
                transform: translateY(-100%);
                opacity: 0;
                visibility: hidden;
                transition: var(--transition);
                box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
                border-top: 2px solid var(--primary);
            }
            nav.active {
                transform: translateY(0);
                opacity: 1;
                visibility: visible;
            }
            nav ul {
                flex-direction: column;
                gap: 0;
            }
            nav a {
                padding: 1rem;
                border-radius: 0;
                border-bottom: 1px solid rgba(255, 255, 255, 0.1);
            }
            .hamburger.active span:nth-child(1) {
                transform: rotate(45deg) translate(6px, 6px);
            }
            .hamburger.active span:nth-child(2) {
                opacity: 0;
            }
            .hamburger.active span:nth-child(3) {
                transform: rotate(-45deg) translate(6px, -6px);
            }
            .header-container {
                padding: 0.8rem 0;
            }
            .my-logo {
                font-size: 1.8rem;
            }
            .stats-grid {
                grid-template-columns: 1fr;
            }
        }
        @media (max-width: 480px) {
            h1 { font-size: 2.2rem; }
            h2 { font-size: 1.8rem; }
            h3 { font-size: 1.4rem; }
            main { padding: 1.5rem; }
            .interactive-section { padding: 2rem 1rem; }
        }
        @keyframes fadeIn {
            from { opacity: 0; transform: translateY(20px); }
            to { opacity: 1; transform: translateY(0); }
        }
        .fade-in {
            animation: fadeIn 0.6s ease forwards;
        }
        .scroll-progress {
            position: fixed;
            top: 0;
            left: 0;
            width: 0%;
            height: 3px;
            background: linear-gradient(90deg, var(--primary), var(--secondary), var(--accent));
            z-index: 1001;
            transition: width 0.3s ease;
        }
        ::-webkit-scrollbar {
            width: 10px;
        }
        ::-webkit-scrollbar-track {
            background: rgba(26, 26, 46, 0.8);
        }
        ::-webkit-scrollbar-thumb {
            background: linear-gradient(var(--primary), var(--secondary));
            border-radius: 5px;
        }
        ::-webkit-scrollbar-thumb:hover {
            background: linear-gradient(var(--secondary), var(--primary));
        }