body {
  margin: 0;
  font-family: 'Lato', 'PingFang SC', Arial, sans-serif;
  background: linear-gradient(120deg, #f8fafc 0%, #e3f0ff 100%);
  color: #2d3a4a;
}
header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 22px 8vw 10px 8vw;
  background: #fff;
  box-shadow: 0 2px 12px rgba(0,0,0,0.06);
  position: sticky;
  top: 0;
  z-index: 10;
}
.logo {
  font-size: 2.3rem;
  font-weight: 900;
  color: #3a8fff;
  letter-spacing: 2px;
  font-family: 'Lato', Arial, sans-serif;
  text-shadow: 0 2px 8px #e3f0ff;
}
nav a {
  margin-left: 32px;
  text-decoration: none;
  color: #4b5c6b;
  font-weight: 600;
  font-size: 1.08rem;
  transition: color 0.2s;
  letter-spacing: 1px;
}
nav a:hover {
  color: #3a8fff;
}
.hero {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 60px 0 40px 0;
  background: linear-gradient(90deg, #e3f0ff 60%, #f8fafc 100%);
  flex-wrap: wrap;
}
.hero-content {
  flex: 1 1 320px;
  min-width: 320px;
  padding: 0 32px;
  animation: fadeInLeft 1.2s;
}
.hero-content h1 {
  font-size: 2.5rem;
  color: #3a8fff;
  margin-bottom: 18px;
  letter-spacing: 2px;
  font-weight: 900;
}
.hero-content p {
  font-size: 1.2rem;
  color: #4b5c6b;
  margin-bottom: 28px;
}
.cta-btn {
  display: inline-block;
  background: linear-gradient(90deg, #3a8fff 40%, #7ed6ff 100%);
  color: #fff;
  font-weight: bold;
  border: none;
  padding: 13px 38px;
  font-size: 1.1rem;
  border-radius: 30px;
  cursor: pointer;
  box-shadow: 0 4px 24px #3a8fff30;
  transition: background 0.2s, transform 0.2s;
  text-decoration: none;
}
.cta-btn:hover {
  background: #7ed6ff;
  color: #fff;
  transform: scale(1.06);
}
.hero-img {
  flex: 1 1 320px;
  min-width: 320px;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0 32px;
  animation: fadeInRight 1.2s;
}
.hero-img img {
  width: 260px;
  height: 260px;
  border-radius: 50%;
  object-fit: cover;
  box-shadow: 0 8px 32px #3a8fff30;
  border: 6px solid #fff;
  background: #e3f0ff;
}
.about, .products, .faq, .contact {
  max-width: 900px;
  margin: 48px auto;
  background: #fff;
  border-radius: 28px;
  box-shadow: 0 2px 24px #3a8fff10;
  padding: 40px 32px 32px 32px;
  animation: fadeInUp 1s;
}
.about h2, .products h2, .faq h2, .contact h2 {
  color: #3a8fff;
  margin-bottom: 18px;
  font-weight: 900;
  letter-spacing: 1px;
}
.product-list {
  display: flex;
  gap: 32px;
  flex-wrap: wrap;
  justify-content: center;
}
.product-item {
  background: linear-gradient(120deg, #e3f0ff 60%, #f8fafc 100%);
  border-radius: 20px;
  box-shadow: 0 2px 18px #3a8fff20;
  padding: 24px 18px 18px 18px;
  width: 320px;
  margin-bottom: 18px;
  display: flex;
  flex-direction: column;
  align-items: center;
  transition: transform 0.2s, box-shadow 0.2s;
  position: relative;
}
.product-item:hover {
  transform: translateY(-6px) scale(1.04);
  box-shadow: 0 8px 32px #7ed6ff80;
}
.product-item img {
  width: 200px;
  height: 200px;
  border-radius: 18px;
  object-fit: cover;
  margin-bottom: 18px;
  box-shadow: 0 2px 16px #7ed6ff60;
  border: 2px solid #3a8fff;
  background: #fff;
}
.product-item h3 {
  color: #3a8fff;
  margin-bottom: 10px;
  font-size: 1.18rem;
  font-weight: 700;
}
.product-item ul {
  color: #4b5c6b;
  margin: 0 0 14px 0;
  padding-left: 20px;
  font-size: 1rem;
}
.buy-btn {
  background: linear-gradient(90deg, #3a8fff 60%, #7ed6ff 100%);
  color: #fff;
  border: none;
  padding: 10px 28px;
  font-size: 1rem;
  border-radius: 20px;
  cursor: pointer;
  font-weight: bold;
  box-shadow: 0 2px 12px #3a8fff30;
  transition: background 0.2s, color 0.2s, transform 0.2s;
  text-decoration: none;
  display: inline-block;
}
.buy-btn:hover {
  background: #7ed6ff;
  color: #fff;
  transform: scale(1.07);
}
.faq-item {
  margin-bottom: 22px;
  border-left: 4px solid #3a8fff;
  padding-left: 16px;
  background: #f8fafc;
  border-radius: 8px;
  transition: box-shadow 0.2s;
  color: #4b5c6b;
}
.faq-item h4 {
  color: #3a8fff;
  font-size: 1.08rem;
  margin-bottom: 6px;
}
.faq-item:hover {
  box-shadow: 0 2px 8px #7ed6ff60;
}
.contact form {
  display: flex;
  flex-direction: column;
  gap: 14px;
  margin-bottom: 18px;
}
.contact input, .contact textarea {
  padding: 10px 14px;
  border: 1.5px solid #7ed6ff;
  border-radius: 8px;
  font-size: 1rem;
  outline: none;
  background: #f8fafc;
  color: #2d3a4a;
  transition: border 0.2s;
}
.contact input:focus, .contact textarea:focus {
  border: 2px solid #3a8fff;
}
.contact button[type="submit"] {
  background: linear-gradient(90deg, #3a8fff 60%, #7ed6ff 100%);
  color: #fff;
  border: none;
  padding: 10px 0;
  border-radius: 8px;
  font-size: 1.1rem;
  cursor: pointer;
  font-weight: bold;
  transition: background 0.2s, color 0.2s;
}
.contact button[type="submit"]:hover {
  background: #7ed6ff;
  color: #fff;
}
.contact-info {
  color: #4b5c6b;
  font-size: 1rem;
}
footer {
  text-align: center;
  padding: 24px 0 12px 0;
  color: #7ed6ff;
  background: #f8fafc;
  font-size: 1rem;
  margin-top: 40px;
  letter-spacing: 1px;
}
@keyframes fadeInLeft {
  from { opacity: 0; transform: translateX(-40px); }
  to { opacity: 1; transform: translateX(0); }
}
@keyframes fadeInRight {
  from { opacity: 0; transform: translateX(40px); }
  to { opacity: 1; transform: translateX(0); }
}
@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(40px); }
  to { opacity: 1; transform: translateY(0); }
}
@media (max-width: 900px) {
  .product-list { flex-direction: column; gap: 18px; }
  .product-item { width: 100%; }
  .hero { flex-direction: column; }
  .hero-content, .hero-img { padding: 0 8px; }
}
@media (max-width: 700px) {
  header { flex-direction: column; padding: 14px 3vw 8px 3vw; }
  nav a { margin-left: 14px; }
  .about, .products, .faq, .contact { padding: 18px 4px 12px 4px; }
  .hero-content h1 { font-size: 1.3rem; }
  .product-item img { width: 120px; height: 120px; }
  .hero-img img { width: 140px; height: 140px; }
}