* {
            margin: 0;
            padding: 0;
            box-sizing: border-box
        }

        body {
            font-family: 'Arial', sans-serif;
            line-height: 1.6;
            color: #333;
            background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
            min-height: 100vh
        }

        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px
        }

        .header {
            background: rgba(0, 0, 0, 0.9);
            color: #fff;
            padding: 1rem 0;
            position: fixed;
            top: 0;
            width: 100%;
            z-index: 1000;
            box-shadow: 0 2px 10px rgba(0, 0, 0, 0.3)
        }

        .header .container {
            display: flex;
            justify-content: space-between;
            align-items: center
        }

        .logo {
            font-size: 2rem;
            font-weight: bold;
            color: #ff6b6b
        }

        .nav ul {
            display: flex;
            list-style: none;
            gap: 2rem
        }

        .nav a {
            color: #fff;
            text-decoration: none;
            transition: color 0.3s;
            padding: 0.5rem 1rem;
            border-radius: 5px
        }

        .nav a:hover {
            color: #ff6b6b;
            background: rgba(255, 255, 255, 0.1)
        }

        .main {
            margin-top: 80px;
            padding: 2rem 0
        }

        .hero {
            text-align: center;
            padding: 4rem 0;
            color: #fff
        }

        .hero h1 {
            font-size: 3.5rem;
            margin-bottom: 1rem;
            text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.5)
        }

        .hero .subtitle {
            font-size: 1.5rem;
            margin-bottom: 2rem;
            opacity: 0.9
        }

        .flash-sale {
            background: #ff6b6b;
            color: #fff;
            padding: 1rem;
            border-radius: 10px;
            margin: 2rem 0;
            animation: pulse 2s infinite
        }

        .flash-sale h2 {
            font-size: 2rem;
            margin-bottom: 0.5rem
        }

        .flash-sale .discount {
            font-size: 3rem;
            font-weight: bold;
            text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3)
        }

        .features {
            background: #fff;
            padding: 3rem;
            margin: 2rem 0;
            border-radius: 15px;
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2)
        }

        .features h2 {
            text-align: center;
            color: #333;
            margin-bottom: 2rem;
            font-size: 2.5rem
        }

        .features-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 2rem;
            margin-top: 2rem
        }

        .feature-card {
            text-align: center;
            padding: 2rem;
            background: #f8f9fa;
            border-radius: 10px;
            transition: transform 0.3s
        }

        .feature-card:hover {
            transform: translateY(-5px)
        }

        .feature-card h3 {
            color: #667eea;
            margin-bottom: 1rem;
            font-size: 1.5rem
        }

        .feature-card p {
            color: #666;
            line-height: 1.6
        }

        .cta-section {
            background: linear-gradient(45deg, #ff6b6b, #ff8e8e);
            color: #fff;
            padding: 4rem;
            margin: 2rem 0;
            border-radius: 15px;
            text-align: center
        }

        .cta-section h2 {
            font-size: 2.5rem;
            margin-bottom: 1rem
        }

        .cta-section p {
            font-size: 1.2rem;
            margin-bottom: 2rem;
            opacity: 0.9
        }

        .btn {
            background: linear-gradient(45deg, #667eea, #764ba2);
            color: #fff;
            padding: 1rem 2rem;
            border: none;
            border-radius: 8px;
            font-size: 1.2rem;
            cursor: pointer;
            transition: transform 0.3s;
            text-decoration: none;
            display: inline-block
        }

        .btn:hover {
            transform: translateY(-2px);
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2)
        }

        .footer {
            background: #333;
            color: #fff;
            padding: 3rem 0;
            margin-top: 4rem
        }

        .footer .container {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 2rem
        }

        .footer h3 {
            margin-bottom: 1rem;
            color: #ff6b6b
        }

        .footer a {
            color: #ccc;
            text-decoration: none;
            transition: color 0.3s
        }

        .footer a:hover {
            color: #ff6b6b
        }

        @keyframes pulse {
            0% {
                transform: scale(1)
            }

            50% {
                transform: scale(1.05)
            }

            100% {
                transform: scale(1)
            }
        }

        @media(max-width:768px) {
            .hero h1 {
                font-size: 2.5rem
            }

            .nav ul {
                flex-direction: column;
                gap: 1rem
            }

            .features,
            .cta-section {
                padding: 2rem
            }

            .container {
                padding: 0 10px
            }
        }