body {
  margin: 0;
  padding: 0;
  font-family: Arial, sans-serif;
}

.header {
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: #e6f7ef;
  height: 80px;
 position: relative;
}

.logo {
   position: absolute;
   top: 0;
   left: -180px;
   width: 120px;
}
.logo img {
  width: 100%;
  height: auto;
}
.menu {
  position: absolute;
  bottom: 0;
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  gap: 10px;
}

.menu-item {
  position: relative;
}

.menu-item span {
  font-size: 18px;
  font-weight: bold;
  display: block;
  padding: 10px 20px;
  cursor: pointer;
  border-radius: 15px 15px 0 0;
  display: flex;
  align-items: center;
  justify-content: center;
}
.menu-item span img {
  width: 30px;
  height: 30px;
  margin-right: 5px;
}
.menu-item[data-color="purple"] span {
  background-color: #663399;
  color: white;
}

.menu-item[data-color="orange"] span {
  background-color: #ff6600;
  color: white;
}

.menu-item[data-color="red"] span {
  background-color: #cc0033;
  color: white;
}

.menu-item[data-color="blue"] span {
  background-color: #0066cc;
  color: white;
}

.menu-item[data-color="brown"] span {
  background-color: #cc6633;
  color: white;
}

.menu-item[data-color="darkGreen"] span {
  background-color: #006666;
  color: white;
}

.menu-item[data-color="map"] span {
  background-color: #3879a4;
  color: white;
}
.submenu {
  list-style: none;
  margin: 0;
  padding: 0;
  position: absolute;
  top: 100%;
  left: 0;
  display: none;
  background-color: rgba(255, 255, 255, 0.5); 
  width: 250px;
  border: 1px solid #ddd;
  border-radius: 5px;
  box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
  z-index: 999;
}

.submenu li {
  padding: 10px 20px;
  cursor: pointer;
  margin-top: 5px;
}



.menu-item[data-color="purple"] .submenu li:hover {
  background-color: #663399;
  color: white;
}

.menu-item[data-color="orange"] .submenu li:hover {
  background-color: #ff6600;
  color: white;
}

.menu-item[data-color="red"] .submenu li:hover {
  background-color: #cc0033;
  color: white;
}

.menu-item[data-color="blue"] .submenu li:hover {
  background-color: #0066cc;
  color: white;
}

.menu-item[data-color="brown"] .submenu li:hover {
  background-color: #cc6633;
  color: white;
}

.menu-item[data-color="darkGreen"] .submenu li:hover {
  background-color: #006666;
  color: white;
}




.menu-item[data-color="purple"] .submenu li {
  color: #663399;
}

.menu-item[data-color="orange"] .submenu li{
  color: #ff6600;
}

.menu-item[data-color="red"] .submenu li {
  color: #cc0033;
}

.menu-item[data-color="blue"] .submenu li{
  color: #0066cc;
}

.menu-item[data-color="brown"] .submenu li {
  color: #cc6633;
}

.menu-item[data-color="darkGreen"] .submenu li {
  color: #006666;
}

/*.submenu li.selected {
  font-weight: bold;

}


.menu-item[data-color="purple"] .submenu li.selected {
  background-color: #663399;
  color: white;
}

.menu-item[data-color="orange"] .submenu li.selected {
  background-color: #ff6600;
  color: white;
}

.menu-item[data-color="red"] .submenu li.selected {
  background-color: #cc0033;
  color: white;
}

.menu-item[data-color="blue"] .submenu li.selected {
  background-color: #0066cc;
  color: white;
}

.menu-item[data-color="brown"] .submenu li.selected {
  background-color: #cc6633;
  color: white;
}

.menu-item[data-color="darkGreen"] .submenu li.selected {
  background-color: #006666;
  color: white;
}*/

.language-switch {
  display: flex;
  align-items: center;
  background: rgba(40, 141, 128, 0.5);
  border-radius: 30px;
  padding: 5px;margin-top: 7px;
}

.lang-btn {
  background: transparent;
  border: none;
  color: white;
  height: 28px;line-height: 28px;width: 85px;text-align: center;
  border-radius: 20px;
  cursor: pointer;
  transition: all 0.3s ease;
  font-weight: 500;font-size: 16px;padding: 0;
}

.lang-btn.active {
  background: white;
  color: #6a11cb;
}

/* 汉堡菜单按钮 */
.hamburger {
  display: none;
  flex-direction: column;
  justify-content: space-between;
  width: 30px;
  height: 21px;
  background: transparent;
  border: none;
  cursor: pointer;
  padding: 0;
  position: absolute;
  right: 20px;
  top: 20px;
  z-index: 1000;
}

.hamburger span {
  display: block;
  height: 3px;
  width: 100%;
  background-color: #333;
  border-radius: 3px;
  transition: all 0.3s ease;
}

/* 移动端菜单样式 */
@media (max-width: 992px) {
  .header {
    height: 60px;
    justify-content: flex-start;
    padding: 0 15px;
  }

  .logo {
    position: static;
    width: 100px;
    margin-right: auto;
  }
  .logo-pc{display: none}
  .hamburger {
    display: flex;
  }

  .menu {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100vh;
    background-color: rgba(255, 255, 255, 0.95);
    flex-direction: column;
    justify-content: flex-start;
    align-items: flex-start;
    padding: 80px 20px 20px;
    z-index: 999;
    transform: translateX(-100%);
    transition: transform 0.3s ease;
    overflow-y: auto;box-sizing: border-box;
  }

  .menu.active {
    transform: translateX(0);
  }

  .menu-item {
    width: 100%;
    margin-bottom: 10px;
  }

  .menu-item span {
    border-radius: 8px;
    padding: 12px 15px;
    font-size: 16px;
    justify-content: flex-start;
  }

  .submenu {
    position: static;
    width: 100%;
    display: none;
    margin-top: 5px;
    background-color: rgba(255, 255, 255, 0.8);
    box-shadow: none;
    border: none;
    border-radius: 8px;
    padding: 0 10px;
  }

  .menu-item.active .submenu {
    display: block;
  }

  .submenu li {
    padding: 10px 15px;
    font-size: 14px;
    border-bottom: 1px solid #eee;
  }

  .submenu li:last-child {
    border-bottom: none;
  }

  .language-switch {
    margin-top: 20px;
    align-self: center;
  }

  /* 汉堡菜单动画 */
  .hamburger.active span:nth-child(1) {
    transform: translateY(9px) rotate(45deg);
  }

  .hamburger.active span:nth-child(2) {
    opacity: 0;
  }

  .hamburger.active span:nth-child(3) {
    transform: translateY(-9px) rotate(-45deg);
  }
  .carousel-main{flex-direction: column}
  .image-wrapper{width: 100%}
  .description{width: 100%}
  video{width: 100%;min-width:auto}
  .video-container .desc-title{padding: 0 20px;box-sizing: border-box}

}