body {
    margin: 0;
    padding: 0;
    background: rgba(255, 255, 255, 1);
    font-family: "Source Han Sans", "Source Han Serif", sans-serif, "黑体", "宋体";
    letter-spacing: 0;
    color: #333333;
}

/* 公共样式 */
.hl_nav {
    color: #ffffff;
    height: 60px;
}

.navBox {
    position: absolute;
    background: rgba(255, 255, 255, 1);
    top: 0;
    width: 100%;
    z-index: 9999;
}

.navBox .header {
    margin: 0 auto;
    width: 1420px;
    background-size: 100% 100%;
    background-repeat: no-repeat;
    display: flex;
    align-items: center;
    position: relative;
}



.header-right {
    font-size: 14px;
    font-weight: 400;
    letter-spacing: 5px;
    line-height: 20.27px;
    color: rgba(102, 102, 102, 1);
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.header a {
    text-decoration: none;
    display: block;
    color: rgba(102, 102, 102, 1);
}

.header-set {
    display: flex;
    align-items: center;
}

.hl_nav a {
    display: block;
    text-decoration: none;
}



.hl_nav .nav_list {
    position: absolute;
    top: 0;
    margin: 0;
    padding: 0;
    list-style: none;
    width: calc(100% - 320px);
    height: 60px;
    margin-left: 40px;
    display: flex;
    gap: 58px;
    justify-content: flex-end;
}

.hl_nav .nav_list>li {
    padding: 0;
    margin: 0 0.5%;
    text-align: center;
    height: 60px;
    position: relative;
}

.hl_nav .nav_head {
    height: 60px;
    line-height: 60px;
    font-size: 16px;
    font-weight: 400;
    letter-spacing: 0px;
    color: rgba(51, 51, 51, 1);
    cursor: pointer;
}

.hl_nav .nav_head:hover {
    text-decoration: none;
}

/* 二级菜单样式 - 纵向布局 */
.hl_nav .nav_list>li>ul {
    position: absolute;
    height: auto !important;
    top: 60px;
    /* 这里我需要反向位移 */
    transform: translateX(-65%);
    z-index: 9999;
    padding: 5px 0;
    padding-top: 19px;
    margin: 0;
    line-height: 1.5;
    list-style: none;
    display: none;
    background: linear-gradient(135deg, rgba(235, 235, 235, 1) 0%, rgba(255, 255, 255, 1) 100%);

    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
    border-radius: 0 0 4px 4px;
}




.hl_nav .nav_list>li>ul>li>a {
    display: block;
    height: 24px;
    padding: 0 20px;
    min-width: 150px;
    /** 文本1 */
    font-size: 14px;
    font-weight: 400;
    letter-spacing: 2px;
    line-height: 23.17px;
    color: rgba(102, 102, 102, 10000);
    margin-bottom: 18px;
    /* 文字不换行一行展示 */
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    transition: color 0.2s;
}

.hl_nav .nav_list>li.active {
    color: rgba(32, 127, 220, 1);
}



/* 移动端导航栏样式 */
.mobile-nav {
    display: none;
    background-color: #f8f8f8;
    padding: 10px;
}

.mobile-nav-top {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 80px;
}

.mobile-nav .menu-toggle {
    background: none;
    border: none;
    font-size: 1.8rem;
    line-height: 1.8rem;
    cursor: pointer;
    color: #333;
}

.mobile-nav .menu-content {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease;
}

.mobile-nav .menu-content.active {
    max-height: 1000px;
    overflow-y: auto;
    overscroll-behavior: contain;
    scrollbar-width: none;
    -ms-overflow-style: none;
}

.mobile-nav .menu-content.active::-webkit-scrollbar {
    display: none;
}

.mobile-nav .menu-list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.mobile-nav .menu-item {
    padding: 25px;
    border-bottom: 1px solid #ddd;
    position: relative;
}

.mobile-nav .menu-item>a {
    font-size: 1.15rem;
    text-decoration: none;
    color: #333;
    display: inline-block;
}

.mobile-nav .submenu {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease;
    padding-left: 20px;
}

.mobile-nav .submenu.active {
    max-height: 780px;
}

.mobile-nav .submenu li {
    padding: 17px 0;
}


.mobile-nav .submenu li a {
    text-decoration: none;
    color: #666;
}

.mobile-nav .menu-item .arrow {
    display: inline-block;
    width: 0;
    height: 0;
    margin-left: 7px;
    border-left: 7px solid transparent;
    border-right: 7px solid transparent;
    border-top: 7px solid #333;
    transition: transform 0.3s ease;
    position: absolute;
    right: 15px;
    top: 45px;
}

.mobile-nav .menu-item .arrow.up {
    transform: translateY(-50%) rotate(180deg);
}

/* 响应式设计 */
@media screen and (max-width: 980px) {
    .navBox {
        display: none;
    }

    .mobile-nav {
        display: block;
        position: fixed;
        z-index: 999999;
        width: 100%;
        top: 0px;
    }
}

.headerbannerhtml {
    width: 100%;
    margin: 0 auto;
}

.header-left a {
    height: 44px;
}

.header {
    position: relative;
}

.Search {
    position: relative;
    width: 30px;
    height: 30px;
    margin-left: 30px;
}

.Search img {
    width: 100%;
    height: 100%;
}



@media screen and (max-width: 1450px) {
    .navBox .header {
        width: 85%;
    }

    .hl_nav .nav_list {
        width: calc(100% - 270px);
    }
}

@media screen and (max-width: 980px) {
    .sub-menu-bannner {
        margin-top: 70px !important;
    }

    .menu-item>a {
        font-size: 1rem !important;
        text-decoration: none;
        color: #333 !important;
        display: inline-block;
    }

    .menu-head>a {
        font-size: 1rem !important;
        text-decoration: none;
        color: #333 !important;
        display: inline-block;
    }

    .category-title>span {
        font-size: 0.875rem !important;
        text-decoration: none;
        color: #333 !important;
        display: inline-block;
        font-weight: 400;
    }

    .mobile-nav .menu-item {
        padding: 15px !important;
    }

    .mobile-nav .menu-item.has-children>.menu-head {
        width: 100% !important
    }

    .mobile-nav .submenu li {
        padding: 18px 0 !important;
        font-size: 0.875rem !important;
        color: #333 !important;
    }

    .nav_headA {
        font-size: 0.875rem !important;
        color: #333 !important;
    }

    .mobile-nav .submenu li a {
        font-size: 0.875rem !important;
        color: #666 !important;
    }
}