.nav[data-class="nav"] {
    width: 100%;
    height: 60px;
    background-color: #FFFFFF;

    position: fixed;
    top: 0;
    /* 触发吸顶的位置 */
    z-index: 100;
    /* 确保在其他内容上方 */

    transition: background-color 0.5s ease;
}

.nav[data-class="nav"] .theme-white {
    --theme-color: #ffffff;
}

.nav[data-class="nav"] .theme-black {
    --theme-color: #1d2129;
}

.nav[data-class="nav"] .nav-content-mini{
    display: none;
}

.nav[data-class="nav"] a {
    text-decoration: none;
    position: relative;
}

.nav[data-class="nav"]>.nav-box {
    width: 1400px;
    margin: 0 auto;
    /* width: 100%; */
    height: 100%;
    display: flex;
    align-items: center;
}

/* 左侧logo */
.nav[data-class="nav"]>.nav-box>.nav_logo {
    /* width: 137px; */
    height: 60%;
    margin-left: 0px;
    margin-right: 50px;
}

.nav[data-class="nav"]>.nav-box>.nav_logo>img {
    height: 100%;
}

/* 中间导航 */
.nav[data-class="nav"] .nav_content {
    width: calc(100% - 285px);
    display: flex;
    height: 100%;
}

.nav[data-class="nav"] .nav_content>ul {
    display: flex;
    gap: 20px;
    width: 100%;
    height: 100%;
}

.nav[data-class="nav"] .nav_content>ul>li {
    padding: 0 16px;
    list-style: none;
    height: 100%;
    line-height: 60px;
    cursor: pointer;
}

.nav[data-class="nav"] .nav_content>ul>li:hover {
    height: calc(100% - 2px) !important;
    line-height: 60px !important;
    border-bottom: 2px solid #2603E9;
}

.nav[data-class="nav"] .nav_content>ul>li:hover>a {
    font-weight: 900;
}

.nav[data-class="nav"] .nav_content>ul>li>a {
    /* color: #1d2129; */
    color: var(--theme-color);
    font-family: "OPPOSans";
    font-size: 14px;
    font-style: normal;
    font-weight: 600;
    line-height: 100%;
}

.nav[data-class="nav"] .nav_item_menu_img {
    width: 12px;
    height: 12px;
}



.nav[data-class="nav"] .nav_item_menu {
    display: none;
    position: absolute;
    left: 0px;
    top: 57px;
    height: 428px;
    width: 100%;
    background-color: #F7F8FA;
    /* background-image: linear-gradient(to bottom, #00000000, #0000007a); */
    /* background-color: #1d2129c4; */
    cursor: pointer;
    box-shadow: 0 10px 40px 0 #0000001a;
}



.nav[data-class="nav"] .popup-left {
    width: 320px;
    padding: 40px 20px;
    background-image: url(../images/popup-left.png);
    background-repeat: no-repeat;
    background-size: cover;
}

.nav[data-class="nav"] .popup-list {
    overflow: auto;
    /* height: calc(100% - 80px); */
    padding: 40px 20px;
    display: flex;
    flex-wrap: wrap;
    flex: 1;
    /* background-color: #fff; */
}

.nav[data-class="nav"] .popup-item {
    width: 450px;
    /* height: 96px; */
    height: max-content;
    padding: 20px;
    overflow: hidden;
    /* margin-right: 40px; */
}

.nav[data-class="nav"] .popup-left-title {
    color: var(--theme-color);
    font-family: "OPPOSans";
    font-size: 24px;
    font-style: normal;
    font-weight: 500;
}

.nav[data-class="nav"] .popup-left-desc {
    align-self: stretch;
    /* color: #1d2129; */
    color: var(--theme-color);
    font-family: "OPPOSans";
    font-size: 14px;
    font-style: normal;
    font-weight: 400;
    line-height: 22px;
}


.nav[data-class="nav"] .popup-item-title {
    align-self: stretch;
    /* color: #1d2129; */
    color: var(--theme-color);
    font-family: "OPPOSans";
    font-size: 16px;
    font-style: normal;
    font-weight: 500;
    line-height: 24px;
}

.nav[data-class="nav"] .popup-item-desc {
    align-self: stretch;
    color: var(--theme-color);
    font-family: "OPPOSans";
    font-size: 14px;
    font-style: normal;
    font-weight: 400;
    line-height: 22px;
    margin-top: 10px;

    display: -webkit-box;
    /* 旧版弹性盒子模型（必需） */
    -webkit-line-clamp: 2;
    /* 限制显示行数 */
    -webkit-box-orient: vertical;
    /* 文本垂直排列 */
    overflow: hidden;
    /* 隐藏溢出内容 */
    text-overflow: ellipsis;
    /* 超出时显示省略号 */
}

.nav[data-class="nav"] .popup-item:hover{
    background-color: #ffffff;
   } 
  
    .nav[data-class="nav"] .popup-item:hover .popup-item-title{
    color: #2603E9;
   }

.nav[data-class="nav"] .cur {
    height: calc(100% - 2px) !important;
    line-height: 60px !important;
    border-bottom: 2px solid #2603E9;
}

.nav[data-class="nav"] .cur> {
    font-weight: 900;
}

/* 右侧按钮 */
.nav[data-class="nav"] .nav_item_btn {
    width: 136px;
    height: 32px;
    margin: auto 0;
    background-color: #2603E9;
    /* color: var(--theme-color); */
    color: #ffffff;
    font-family: "OPPOSans";
    border: none;
    /* border: 2px solid var(--theme-color); */
    border-radius: 0px;
}

.nav[data-class="nav"] .nav_item_btn>a {
    color: #FFFFFF;
    font-family: "OPPOSans";
    font-size: 14px;
}

.nav[data-class="nav"] .nav_item_menu {
    display: none;
    position: absolute;
    left: 0px;
    height: 428px;
    width: 100%;
}


.navCase {
    display: none;
    position: absolute;
    left: 0px;
    height: 460px;
    width: 100%;
    background-color: #fff;
}

.navCase-left {
    width: 250px;
    padding: 40px;
}

.navCase-left-item {
    line-height: 28px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-top: 16px;
}

.navCase-left-item>div {
    color: #1d2129;
    font-family: "OPPOSans";
    font-size: 20px;
    font-style: normal;
    font-weight: 400;
    line-height: 28px;
}

.navCase-left-item>img {
    width: 20px;
    height: 20px;
}

.navCase-rigth {
    flex: 1;
}

.nav[data-class="nav"] .nav_content>ul>li:hover>.nav_item_menu {
    display: flex;
}

.nav[data-class="nav"] .nav_content>ul>li:hover>.navCase {
    display: flex;

}

.nav[data-class="nav"] .navCase-rigth-column {
    display: none;
    height: 100%;
}

.nav[data-class="nav"] .navCase-rigth-column .column-item-list {
    display: flex;
    width: 1280px;
    height: 77%;
    overflow: auto;
    flex-wrap: wrap;
}

.nav[data-class="nav"] .navCase-rigth-column .column-item-list .rigth-column-item {
    width: 280px;
    margin-bottom: 24px;
}

.nav[data-class="nav"] .navCase-rigth-column .column-item-list .rigth-column-item>a {
    align-self: stretch;
    color: #4e5969;
    font-family: "OPPOSans";
    font-size: 16px;
    font-style: normal;
    font-weight: 400;
    line-height: 24px;
}

.nav[data-class="nav"] .navCase-rigth-column-title {
    align-self: stretch;
    color: #1d2129;
    font-family: "OPPOSans";
    font-size: 24px;
    font-style: normal;
    font-weight: 500;
    line-height: 32px;
    margin-top: 40px;
}

.nav[data-class="nav"] .left-item-active>div {
    color: #154EF7;
}

.menu-btn {
    display: none;
}

.mini_nav_content {
    display: none;
}

.dark {
    background-color: #1D2129;
}

/* 768以下 */
@media (max-width: 768px) {
    .nav_content {
        display: none !important;
    }

    .nav_item_btn {
        display: none !important;
    }

    .nav[data-class="nav"]>.nav-box>.nav_logo {
        width: 103px;
        height: 24px;
        margin-left: 16px;
        margin-right: 80px;
    }

    .nav[data-class="nav"]>.nav-box>.nav_logo>img {
        /* width: 103px; */
        height: 24px;
    }

    .nav[data-class="nav"] .nav-content-mini{
        display: block;
        position: relative;
    }

    .nav[data-class="nav"]>.nav-box{
        display: flex;
        width: 100%;
        justify-content: space-between;
    }


    .nav[data-class="nav"] .nav-content-mini img{
        width: 6vw;
        height: 6vw;
        margin-right: 5vw;
    }

    .nav[data-class="nav"] .nav-content-mini-menu{
        position: absolute;
        right: 0;
        top: 44px;
        width: 80vw;
        height: calc(100vh - 50px);
        background-color: #fff;
        padding-left: 30px;
        list-style: none;
        display: none;
    }

    .nav[data-class="nav"] .nav-content-mini-menu li{
        margin-bottom: 5px;
    }

    .nav[data-class="nav"] .nav-content-mini-menu li>div{
        padding-left: 20px;
    }
}