body {
  font-family: 'PingFang SC', 'Microsoft YaHei', Arial, sans-serif;
  background: #fff;
  color: #222;
  margin: 0;
  padding: 0;
}
header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 24px 8vw;
  background: #fff;
  box-shadow: 0 2px 8px rgba(0,0,0,0.03);
}
.logo {
  display: flex;
  align-items: center;
  font-size: 2rem;
  font-weight: bold;
  color: #1e90ff;
}
.logo img {
  margin-right: 10px;
}
nav a {
  margin: 0 18px;
  color: #222;
  text-decoration: none;
  font-size: 1.1rem;
  transition: color 0.2s;
  position: relative;
}
nav a.active, nav a:hover {
  color: #1e90ff;
}
nav a.active::after, nav a:hover::after {
  content: '';
  display: block;
  width: 100%;
  height: 2px;
  background: #1e90ff;
  position: absolute;
  left: 0;
  bottom: -4px;
}
.banner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: linear-gradient(90deg, #1e90ff 60%, #00e676 100%);
  color: #fff;
  padding: 60px 8vw;
}
.banner-content h1 {
  font-size: 2.8rem;
  margin-bottom: 18px;
}
.banner-content p {
  font-size: 1.3rem;
  margin-bottom: 28px;
}
.download-btns {
  display: flex;
  align-items: center;
  gap: 18px;
}
.download-btns .btn {
  background: #fff;
  color: #1e90ff;
  padding: 10px 22px;
  border-radius: 24px;
  text-decoration: none;
  font-weight: bold;
  transition: background 0.2s, color 0.2s;
}
.download-btns .btn:hover {
  background: #1e90ff;
  color: #fff;
}
.qrcode {
  width: 80px;
  height: 80px;
  border-radius: 12px;
  background: #fff;
  margin-right: 12px;
}
.banner-img img {
  max-width: 350px;
  border-radius: 18px;
}
.features, .audience, .partners, .page-section {
  padding: 60px 8vw;
  text-align: center;
}
.feature-list, .audience-list, .partner-logos, .product-detail {
  display: flex;
  justify-content: center;
  gap: 36px;
  flex-wrap: wrap;
}
.feature-card, .audience-card {
  background: #f7f9fa;
  border-radius: 18px;
  padding: 32px 24px;
  width: 220px;
  box-shadow: 0 2px 8px rgba(30,144,255,0.06);
  transition: transform 0.2s;
}
.feature-card:hover, .audience-card:hover {
  transform: translateY(-8px) scale(1.03);
}
.feature-card img, .audience-card img {
  height: 60px;
  margin-bottom: 16px;
}
.partner-logos img {
  height: 80px;
  margin: 0 18px;
  opacity: 0.8;
  transition: opacity 0.2s;
}
.partner-logos img:hover {
  opacity: 1;
}
footer {
  background: #222;
  color: #fff;
  padding: 32px 8vw;
  text-align: center;
}
.social-links img {
  height: 28px;
  margin: 0 8px;
  vertical-align: middle;
}
.page-section {
  max-width: 900px;
  margin: 0 auto;
  text-align: left;
}
.product-detail {
  align-items: center;
  margin-top: 32px;
}
.product-img {
  width: 320px;
  height: 620px;
  border-radius: 16px;
  margin-right: 36px;
  box-shadow: 0 2px 12px rgba(30,144,255,0.08);
}
.product-info ul {
  padding-left: 20px;
}
.contact-form {
  margin-top: 32px;
  display: flex;
  flex-direction: column;
  gap: 16px;
  max-width: 400px;
}
.contact-form input, .contact-form textarea {
  padding: 10px;
  border: 1px solid #ddd;
  border-radius: 8px;
  font-size: 1rem;
}
.contact-form button {
  background: #1e90ff;
  color: #fff;
  border: none;
  padding: 12px;
  border-radius: 8px;
  font-size: 1.1rem;
  cursor: pointer;
  transition: background 0.2s;
}
.contact-form button:hover {
  background: #00e676;
}
@media (max-width: 900px) {
  .banner, .feature-list, .audience-list, .product-detail {
    flex-direction: column;
    align-items: center;
  }
  .feature-card, .audience-card, .product-img {
    width: 90vw;
    margin-bottom: 18px;
  }
  .product-img {
    margin-right: 0;
    margin-bottom: 18px;
  }
}




@media (max-width: 600px) {
  header {
    flex-direction: column;
    align-items: flex-start;
    padding: 16px 4vw;
  }
  nav {
    width: 100%;
    display: flex;
    flex-direction: row;
    overflow-x: auto;
    white-space: nowrap;
    gap: 0;
    margin-top: 8px;
    scrollbar-width: none; /* Firefox */
  }
  nav::-webkit-scrollbar {
    display: none; /* Chrome/Safari */
  }
  nav a {
    font-size: 1rem;
    margin: 0 12px 0 0;
    padding: 4px 0;
    flex: 0 0 auto;
    white-space: nowrap;
  }
  .banner {
    flex-direction: column;
    padding: 32px 4vw 24px 4vw;
    text-align: center;
  }
  .banner-content h1 {
    font-size: 2rem;
  }
  .banner-content p {
    font-size: 1rem;
  }
  .banner-img img {
    max-width: 90vw;
    margin-top: 18px;
  }
  .features, .audience, .partners, .page-section {
    padding: 32px 4vw;
  }
  .feature-list, .audience-list, .partner-logos, .product-detail {
    gap: 18px;
  }
  .feature-card, .audience-card {
    width: 98vw;
    min-width: unset;
    padding: 20px 8px;
    font-size: 1rem;
  }
  .feature-card img, .audience-card img {
    height: 40px;
  }
  .partner-logos img {
    height: 40px;
    margin: 0 8px;
  }
  .product-img {
    width: 90vw;
    height: auto;
    margin-right: 0;
    margin-bottom: 18px;
  }
  .page-section {
    max-width: 100vw;
    text-align: left;
    padding: 24px 4vw;
  }
  .contact-form {
    max-width: 100vw;
  }
  footer {
    padding: 18px 4vw;
    font-size: 0.95rem;
	color: #fff;
  }
  .footer-info {
    flex-direction: column;
    gap: 8px;
  }
}
html, body {
  max-width: 100vw;
  overflow-x: hidden;
}

.footicp{
  color: #fff;
  text-decoration: none;
}