/* 一级菜单水平 */
.djj-mega-menu {
    display: flex;
    list-style: none;
    padding: 0;
    margin: 0;
    background: #fff;
    position: relative;
    justify-content: space-around;
    margin-left: 30px;
}
.djj-mega-menu  ul,.djj-mega-menu li {
    list-style: none !important;
    text-align: left;
}
.djj-mega-menu .mega-submenu-left li,.djj-mega-menu .mega-submenu-left ul li {
    display: flex;           /* 启用 Flexbox */
    align-items: center;     /* 垂直居中 */
}
.djj-mega-menu li a {
    flex: 1;                 /* 链接占满 li 的宽度 */
    text-decoration: none;
    color: #333;
    font-family: 'Oswald';
}
.djj-mega-menu > li {
    position: unset;
    flex: 0 0 auto;
    text-align: center;
    list-style: none !important;
}

.djj-mega-menu > li > a {
    display: block;
    padding: 15px 0;
    text-decoration: none;
    color: #000;
    font-weight: bold;
    font-size: 24px;
}

/* mega submenu */
.djj-mega-menu .mega-submenu {
    display: none;
    position: absolute;
    top: 100%;
    left: 50%;
    width: 100vw;
    background: #fff;
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
    z-index: 999;
    max-width: 1200px;
    transform: translate(-50%, 0);
}

/* 左侧二级菜单 */
.djj-mega-menu .mega-submenu-left {
    list-style: none;
    margin: 0;
    padding-left:0;
    border-right: 1px solid #D9D9D9;
}
.djj-mega-menu .mega-submenu-left li{
    min-height: 100px;
    padding: 0 50px;
    border-bottom: 1px solid #D9D9D9;
    width: 300px;
}
.djj-mega-menu .mega-submenu-left li:only-child {
   height: -webkit-fill-available;
   height: -moz-available;
   height: 100%;  
}
.djj-mega-menu .mega-submenu-left li a {
    display: block;
    padding: 0;
    color: #000;
    text-decoration: none;
    font-size: 24px;
    font-weight: 700;
}

.djj-mega-menu .mega-submenu-left li:hover {
    background: #FFDA00;
}
.djj-mega-menu .mega-submenu-left li.active {
    background-color: #FFDA00; /* 你想要的 hover 背景色 */
}

/* 右侧三级菜单 */
.djj-mega-menu .mega-submenu-right-container {
    flex: 1;
    display: flex;
    justify-content: flex-start;
    width: calc(100% - 300px);
}

.djj-mega-menu .mega-submenu-right {
    list-style: none;
    padding: 0;
    margin: 0;
    display: none;
    width: 100%;
}
.djj-mega-menu .mega-submenu-right ul{
    padding: 0;
}
.djj-mega-menu .mega-submenu-right li a {
    display: flex;
    padding: 0;
    text-decoration: none;
    color: #000;
    align-items: center;
    height: 29px;
}

/* hover 一级菜单显示 mega menu */
.djj-mega-menu > li:hover .mega-submenu {
    display: flex;
}

.djj-mega-menu .mega-submenu-level-4{
    display: grid;
    grid-template-columns: repeat(3, 1fr); /* 最多 3 列 */
    gap: 15px; /* 列间距/行间距可调 */
}
/* 默认：三级都有边框 */
.djj-mega-menu li.level-item.level-3 > a,.djj-mega-menu .mega-submenu-level-4 {
    border-bottom: 1px solid #D9D9D9;
    min-height: 100px;
    padding: 0 115px;
}

/* 如果有四级，但没有五级 → 去掉边框 */
.djj-mega-menu li.level-item.level-3:has(> ul.mega-submenu-level-4):not(:has(> ul.mega-submenu-level-4 ul.mega-submenu-level-5)) > a {
    border-bottom: none;
    min-height: 36px;
    padding-top: 16px;
}
.djj-mega-menu li.level-item.level-3:has(> ul.mega-submenu-level-4):not(:has(> ul.mega-submenu-level-4 ul.mega-submenu-level-5)) > .mega-submenu-level-4{
    min-height: unset;
}
.djj-mega-menu .mega-submenu .mega-submenu-level-4{
    padding: 20px 115px 15px;
}
.djj-mega-menu li.level-item.level-3>a{
    font-size: 24px;
    font-weight: 700;
}
.djj-mega-menu .mega-submenu-level-4 .level-item.level-4 > a{
    font-size: 16px;
    font-weight: 700;
    margin-bottom: 2px;
}
.djj-mega-menu .top-menu-arrow{
    font-size: 16px;
}
.djj-mega-menu .menu-arrow{
    font-size: 16px;
    margin-right: 10px;
}
/* 隐藏五级及以上箭头 */
.djj-mega-menu .mega-submenu-level-5 .menu-arrow,
.djj-mega-menu .mega-submenu-level-6 .menu-arrow {
    visibility: hidden;
}
/* 一级菜单高亮为黄色 */
.djj-mega-menu > li.active-menu > a {
    color: #FFD700;
    text-decoration: underline;
}