* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: Arial, sans-serif;
}
html, body {
  height: 100%;
}
body {
  background-image: url('cliff.jpg');
  background-size: cover;
  background-position: center center;
  background-attachment: fixed;
  background-repeat: no-repeat;
}
body::before {
  content: '';
  position: fixed;
  top: 0; left: 0; right: 0; bottom: 0;
  background: rgba(255,255,255,0.1);
  backdrop-filter: blur(6px);
  z-index: -1;
}
.header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px 50px;
  background: #fff;
  box-shadow: 0 2px 6px rgba(0,0,0,0.1);
  position: sticky;
  top: 0;
  z-index: 999;
}
.logo img {
  height: 75px;
  object-fit: contain;
}
.nav {
  display: flex;
  gap: 35px;
  align-items: center;
}
.nav a {
  text-decoration: none;
  color: #333;
  font-weight: 500;
  font-size: 18px; /* 字号加大3个号 */
}
.dropdown {
  position: relative;
  display: inline-block;
}
.dropdown-menu {
  display: none;
  position: absolute;
  top: 100%;
  left: 0;
  background: #fff;
  min-width: 120px;
  box-shadow: 0 3px 10px rgba(0,0,0,0.1);
  padding: 10px 0;
}
.dropdown-menu a {
  display: block;
  padding: 10px 20px;
  white-space: nowrap;
}
.dropdown:hover .dropdown-menu {
  display: block;
}
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 50px 20px;
}
.section {
  margin-bottom: 70px;
  background: rgba(255,255,255,0.1);
  padding: 30px;
  border-radius: 8px;
}
h2 {
  font-size: 24px;
  margin-bottom: 22px;
  color: #222;
}
h3 {
  font-size: 18px;
  margin: 30px 0 12px;
  color: #222;
}
p {
  line-height: 1.8;
  color: #222;
  font-size: 17px;
  font-weight: bold;
  margin-bottom: 10px;
}
.img-row {
  display: flex;
  gap: 15px;
  flex-wrap: wrap;
  margin-top: 10px;
  justify-content: center;
}
.img-row img {
  height: 200px;
  border-radius: 6px;
}
.product-cats {
  display: flex;
  gap: 30px;
  margin-top: 15px;
}
.cat-item {
  flex: 1;
  text-align: center;
}
.cat-item img {
  width: 100%;
  height: 260px;
  object-fit: cover;
  border-radius: 6px;
  margin-bottom: 12px;
}
.cat-item p {
  font-weight: bold;
  font-size: 18px;
}
.banner {
  width: 100%;
  margin-bottom: 40px;
}
.banner img {
  width: 100%;
  border-radius: 8px;
}
.product-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 22px;
}
.product-box {
  background: rgba(255,255,255,0.5);
  padding: 12px;
  border-radius: 8px;
  text-align: center;
  box-shadow: 0 1px 4px rgba(0,0,0,0.06);
}
.product-box img {
  width: 100%;
  height: 200px;
  object-fit: cover;
  border-radius: 6px;
  margin-bottom: 10px;
}
.product-code {
  font-size: 14px;
  color: #555;
  font-weight: bold;
}
.our-team-img {
  display: block;
  margin: 0 auto;
  width: 30%;
  height: auto;
}
.contact-section {
  display: flex;
  align-items: center;
  gap: 30px;
}
.contact-img {
  width: 20%;
  height: auto;
  border-radius: 8px;
}
.contact-text {
  flex: 1;
}
.contact-text p {
  font-size: 18px;
  font-weight: bold;
}