* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

main {
  width: 100%;
  background: #F5F5DC;
  padding-bottom: 30px;
}
.nav a{
    text-decoration: none;
    color:inherit;
}
.nav {
    width: 100%;
    height: 98px;
    background-color: #D9C6B0;
    display: block;
    display: flex;
    position: relative;
    top: 0;
    left: 0;
    z-index: 999;
}

.nav .logo {
    width: 275px;
    height: 60px;
    margin: 16px 72px;
    margin-top: 22px;
}

.nav ul {
    width: 54%;
    height: 100%;
    display: flex;
    list-style: none;
    justify-content: center;
    align-items: center;
}

.nav-list>li{
    width: 12.5%;
    margin: 0 10px;
    color:rgba(17, 17, 17, 1);
    text-align: center;
    font-size: 14px;
    height:98px;
    line-height: 98px;
    cursor: pointer;
    position: relative;
    background-image: url(/assets/fweb/public/nav/img/nav-line.png);
    background-repeat: no-repeat;
    background-position: bottom 28px center;
    overflow: visible;
}
.nav-list li:hover .submenu{
    cursor: pointer;
    max-height: 1000px; /* 或者一个足够大的值，确保内容完全显示 */
    opacity: 1; /* 完全显示 */
    visibility: visible;
}
.nav-list>li.active {
    color: rgba(42, 92, 69, 1);
}

.nav li .arow {
    position: absolute;
    top: 47px;
    right: 0px;
    width: 0;
    height: 0;
    border: 4px solid;
    border-color:  #111111 transparent transparent transparent;
}


.nav .search{
    width: 50px;
    height: 50px;
    margin: auto 72px;
}
.nav .text{
    position: absolute;
    right: -1%;
    width: 227px;
    height: 62px;
    margin-top: 22px;
    margin-right: 50px;
    justify-content: center;
    align-items: center;
    color: #9E2A2B;
}

.nav .up span{
    font-size: 21px;
    margin: 0 10px;
}
.nav .imgHead{
    width: 20px;
    height: 20px;
}
.nav .down span{
    font-size: 16px;
    opacity: 0.6;
}
.nav .submenu{
    display: block; /* 保持 block，但通过 max-height 隐藏 */
    position: absolute;
    top: 98px; /* 导航栏的高度 */
    left: -50%;
    width: 200%;
    text-align: center;
    z-index: 10;
    color:rgba(35, 119, 77, 1);
    list-style: none;
    padding: 0;
    margin: 0;

    /* 动画相关属性 */
    max-height: 0; /* 初始高度为0，隐藏内容 */
    /* overflow: hidden;  */
    opacity: 0; /* 初始透明度为0，隐藏 */
    visibility: hidden; /* 初始不可见 */
    transition: max-height 0.3s ease-out, opacity 0.3s ease-out, visibility 0.3s ease-out; /* 定义过渡效果 */
}
.nav .submenu li{
    background-color: rgba(255, 255, 255, 0.80);
    opacity: 0.8;
    height: 50px;
    line-height: 50px;
    font-size: 14px;
}
.nav .submenu li:hover{
    background-color: rgba(42, 92, 69, 1);
    color: #ffffff;
}
/* .submenu li a:hover{
    color:#ffffff;
} */