.top-bar .logo {
  width: 100%;
  height: auto;
}
.top-bar .logo a {
  display: block;
  font-size: 1.5rem;
  text-decoration: none;
}
.footer-content {
  justify-content: space-between;
}
.footer-content a {
  color: #ffffff;
  text-decoration: none;
  font-size: 15px;
}
.error-message {
  color: red;
}
.button-send {
  background: #003366;
  color: white;
  border: none;
  padding: 1rem 2rem;
  font-size: 1rem;
  font-weight: 500;
  border-radius: 4px;
  cursor: pointer;
  transition: background-color 0.3s ease;
  width: 100%;
}
.product {
  padding: 80px 20px;
}
.product .product-wrap {
  max-width: 1100px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  gap: 60px;
}
.product .product-image,
.product .product-content {
  flex: 1;
}
.product .product-image {
  text-align: center;
}
.product .product-image img {
  width: 100%;
  max-width: 350px;
  border-radius: 20px;
  text-align: center;
}
.product .product-title {
  font-size: 30px;
  line-height: 1.2;
  margin-bottom: 20px;
}
.product .product-desc {
  font-size: 16px;
  line-height: 1.8;
  color: #666;
  margin-bottom: 30px;
}
.product .download {
  display: flex;
  flex-wrap: wrap;
  gap: 15px;
  margin-bottom: 10px;
}
.product .download img {
  width: 160px;
  height: 45px;
}
@media (max-width: 768px) {
  .product .product-wrap {
    flex-direction: column;
    gap: 30px;
  }
  .product .product-title {
    font-size: 32px;
  }
}
/* 手机屏幕（小于768px） */
@media screen and (max-width: 767px) {
  .top-bar .contact-info {
    display: none;
  }
}
@media (max-width: 768px) and (min-width: 480px) {
  .nav-links.open {
    top: 122px;
    box-shadow: 2px 6px 8px rgba(0, 0, 0, 0.2);
  }
}
/*# sourceMappingURL=style.css.map */