body, html { margin: 0; padding: 0; font-family: 'Helvetica Neue', Arial, sans-serif; line-height: 1.6; color: #333; background: linear-gradient(135deg, #3A1C71, #D76D77, #FFAF7B); background-attachment: fixed; height: 100%; overflow-x: hidden; }
.container { max-width: 1200px; margin: 0 auto; padding: 20px; background: rgba(255, 255, 255, 0.9); border-radius: 10px; box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1); margin-top: 20px; margin-bottom: 20px; }
header { display: flex; justify-content: space-between; align-items: center; padding: 20px 0; }
header .logo { font-size: 24px; font-weight: bold; color: #007AFF; }
header nav a { text-decoration: none; color: #1C1C1E; margin-left: 20px; font-size: 16px; transition: color 0.3s; }
header nav a:hover { color: #007AFF; }
.hero { text-align: center; padding: 50px 20px; background: url('https://images.gptkong.com/product/iphone16/iphone16-1.png') no-repeat center center; background-size: contain; min-height: 400px; position: relative; }
.hero h1 { font-size: 36px; color: #FFFFFF; margin-bottom: 20px; }
.hero p { font-size: 18px; color: #F2F2F7; margin-bottom: 30px; }
.hero .cta-button { display: inline-block; padding: 15px 30px; background-color: #007AFF; color: #FFFFFF; text-decoration: none; border-radius: 5px; font-size: 18px; transition: background-color 0.3s; }
.hero .cta-button:hover { background-color: #005bb5; }
.features { display: flex; flex-wrap: wrap; justify-content: space-around; padding: 40px 0; }
.feature-item { flex: 1 1 30%; text-align: center; padding: 20px; margin: 10px; background: #F2F2F7; border-radius: 10px; transition: transform 0.3s, box-shadow 0.3s; }
.feature-item:hover { transform: translateY(-10px); box-shadow: 0 8px 12px rgba(0, 0, 0, 0.1); }
.feature-item img { max-width: 100px; margin-bottom: 15px; }
.quality { padding: 40px 0; background: #F2F2F7; margin-top: 40px; border-radius: 10px; }
.quality img { max-width: 100%; height: auto; border-radius: 10px; }
.design { display: flex; align-items: center; padding: 40px 0; }
.design img { max-width: 45%; margin-right: 20px; border-radius: 10px; }
.design-content { flex: 1; }
.reviews { padding: 40px 0; }
.review-slider { display: flex; overflow-x: auto; scroll-snap-type: x mandatory; gap: 20px; padding: 10px; }
.review-card { flex: 0 0 auto; width: 300px; padding: 20px; background: #F2F2F7; border-radius: 10px; scroll-snap-align: start; }
.purchase { text-align: center; padding: 40px 0; background: #007AFF; color: #FFFFFF; margin-top: 40px; border-radius: 10px; }
.purchase a { color: #FFFFFF; text-decoration: none; }
footer { text-align: center; padding: 20px 0; background: #1C1C1E; color: #F2F2F7; margin-top: 40px; border-radius: 10px; }
@media (max-width: 768px) { header { flex-direction: column; } .hero h1 { font-size: 28px; } .features { flex-direction: column; } .design { flex-direction: column; } .design img { margin-right: 0; margin-bottom: 20px; } }